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Introduction to the 3-in-1 filter washing dryer
2022 / 03 / 16
Introduction to the 3-in-1 filter washing dryer: The equipment consists of stainless steel vertical container, stirring device, shaft end sealing device, lifting mechanism, hydraulic cylinder, chassis, heating device, transmission mechanism, filter plate, discharge device, sampling device, bracket, control system and other components to achieve electromechanical integration. Its characteristics: Continuous operation of the whole process of filtration, washing and drying in the same vessel. 1. Filtration: operated under pressure or vacuum to achieve solid-liquid separation, the filter cake is flat when filtering and the solid-liquid separation effect is good. 2. Washing: A special spraying device is installed in the container, so that the washing liquid is evenly distributed in the container. 3. Drying: The filter cake is scraped loose by the stirring paddle layer by layer, the heating device of the equipment is evenly heated to the filter cake, and the mixture is heated by hot gas under vacuum to accelerate evaporation to achieve drying. 4. Discharging: the material is scraped loose and automatically discharged from the side outlet of the tank wall by means of the stirring liquid.
Introduction to the 2-in-1 filter washing machine
2022 / 03 / 15
Introduction to the 2-in-1 filter washing machine: The equipment consists of a vertical container, stirring device, lifting mechanism, transmission mechanism, filtering device, washing device and other components, and is a multifunctional solid-liquid separation equipment integrating stirring, mixing, beating, filtering and washing. It is widely used in chemical, food, printing and dyeing, pharmaceutical and other industries. Its characteristics: 1. Completely sealed and filtered, no leakage, no pollution, in accordance with GMP norms 2. Operate under pressure or vacuum to achieve solid-liquid separation, uniform distribution of filter cake and good solid-liquid separation effect 3. The spraying device on the inside of the container enables the cleaning liquid to be evenly distributed to the container, so that the inner wall of the container and the material can be cleaned 4. By lifting and lowering the stirring paddle to fully mix the filter cake and the cleaning liquid, the pulpy suspension filter cake can be fully washed 5. Solid material is automatically discharged from the solid filter cake by reversing the stirring paddle
Introduction to inorganic permeable vapourisation membrane units
2022 / 03 / 14
Separation principle of inorganic permeable vapourisation membrane devices: Inorganic permeation vapourisation membranes mainly refer to molecular sieve membranes, which are a silica-aluminate film prepared on a porous inorganic carrier and are strongly hydrophilic. The organic solvent - water mixture is driven by the component vapour partial pressure difference and the separation process of the substance is achieved by using the difference in the speed of adsorption and diffusion of the component through the molecular sieve membrane. Its process: The organic matter - water mixture that meets the requirements of the incoming membrane enters the pre-heater, evaporator and superheater in turn through the transfer pump, and then the product obtained after entering the membrane components at all levels in the form of steam. Its technical characteristics: 1. High efficiency and energy saving: compared with the traditional distillation and adsorption technology, it can save more than 30-50% of energy 2. High recovery rate: the primary yield is not less than 97% and the permeate can be recovered and recycled 3. Simple operation: the production process is controlled by PLC and monitored in real time by HMI, with a high degree of automation 4. Convenient maintenance: small footprint, low equipment height, modular design, no civil construction requirements 5. Excellent membrane performance: high flux, high separation coefficient, organic solvent resistance, no swelling, long membrane life compared to organic membranes
Introduction to the crystallisation heating slicer
2022 / 03 / 12
Product performance and features: 1. There are two types of fabric, top fabric and rear feed. For the characteristics of chemical materials, there are single drum type and double drum type. 2. Material tank insulation has steam insulation, heat-conducting oil circulation insulation, electric heating heat-conducting oil insulation. 3.The equipment is divided into open and semi-enclosed, fully enclosed, evacuated and nitrogen-protected types. 4.The blades are available in brass, tin-bronze, selenium, nylon, gum wood, phenolic resin and alloy steel saw blades. 5.Discharge system with single, double and stock discharge. 6.Special requirements: the regular shape and size of the material, the thickness of the sheet and the uniformity of the size of the material can be guaranteed. 7.Cooling or heating systems are available in jacketed or sprayed and special spoiler technology, designed according to the size and specification of the slicer and the characteristics of the material, which can improve the heat exchange efficiency and increase the intensity of the turning strand, and improve the relative product yield, which can improve the yield by 0.3-1 times compared to the general conventional production machine by actual measurement. 8.The use of rotary joints for cooling water reliably prevents water leakage and new processes have been applied to reduce the consumption of cooling water. 9.Both ends of the rotating strand are insulated and have side scrapers, the ends of the rotating strand are not caked, thus there is no frictional power consumption at the ends of the drum and the problem of erratic starting due to end caking is consumed.
Introduction to the vacuum rake dryer
2022 / 03 / 11
Vacuum rake dryer has a simple structure, easy to operate, long use cycle, stable and reliable performance, small steam consumption, strong performance, good product quality, especially suitable for high temperature intolerance, flammable, easy to oxidize under the temperature of the paste material drying, the machine by the user long-term use proved to be a good drying equipment. Its working principle: Its working principle is that the dried material is added from the top of the shell, under the stirring of the rake teeth that constantly rotate forward and backward, the material goes back and forth axially, and the surface in contact with the inner wall of the shell is constantly updated, indirectly heated by steam, evenly stirred by the rake teeth, crushed by the crushing rod, so that the surface moisture of the material is more favorably discharged, and the vaporized moisture is released from the outlet of the vacuum pump through the dry dust collector, wet dust collector, condenser.
Introduction to Levin evaporators
2022 / 03 / 10
Today we are introducing the Levin evaporator among evaporators. The evaporator belongs to the natural cycle evaporator of heating tube type external boiling, its structure characteristic is in the upper part of the heating room, add 2.7-5m high support section and steady flow section, make the solution in the heating room bear the larger liquid column static pressure, but not to boil, only in the steady flow section of lower static pressure to start boiling vaporization. In the heating tube without boiling vaporisation, it can reduce or avoid the crystallisation of solutes in the heating tube and reduce the scaling and blockage of the heating tube. The solution circulation relies on the weight difference between the liquid in the support section and the steady flow section and the liquid in the circulation tube. In order to reduce the resistance of the circulation system, the cross-sectional area F1 of the circulation tube is larger than the cross-sectional area of the heating tube, and the circulation speed of this evaporator can reach 1.5-2m/s, and the total heat transfer coefficient is 1300-2300W/(㎡*k). The length-diameter ratio of the heating tube L/d=100-120.The Levine evaporator should be kept under a large temperature difference operation. Otherwise, due to the small temperature difference, the circulation speed is significantly reduced and the heat exchange rate liquid is reduced accordingly.
Introduction to natural circulation externally heated evaporators
2022 / 03 / 09
Today we are introducing the natural circulation external heating evaporator in evaporators. The natural circulation external heating evaporator is composed of three parts: the column tube heater, the evaporation chamber and the circulation tube. If crystallization occurs during evaporation, a liquid-solid separator should be added to the lower port of the circulation tube. Material liquid in the evaporation chamber circulation speed is less than 1m / s, power is circulation tube and heating tube in the liquid weight difference. Its heat transfer area is often hundreds or even thousands of square metres. An evaporation chamber can be equipped with 1-4 heating chambers. The heating tube is long, its length-diameter ratio L/d=60-110, and the total heat transfer coefficient is 1400-3500W/(㎡*k). The disadvantage of this equipment is the high height, because the liquid in the tube of the liquid column is higher, the corresponding increase in the boiling point of the lower liquid, so the heating temperature difference is required, thus limiting the multi-effect use.
Introduction to rising film evaporators
2022 / 03 / 08
Today we are introducing the rising film evaporator among evaporators. The rising film evaporator is also known as vertical long tube evaporation (LTV) and thermal siphon evaporator. Its structure is composed of heater, evaporation separation chamber and circulation tube etc. The liquid enters the heating tube from the bottom of the heating chamber. The heated steam flows between the tube bundles, and the material liquid boils in the heating tube and vaporises rapidly. Secondary steam in the tube flow rate is very large, 20-30m/s under atmospheric pressure, 80-200m/s under reduced pressure spiral rise, the liquid will be attached to the inner wall of the pipe pulled into a thin film. This type of evaporator is suitable for heat-sensitive materials, not suitable for materials with crystallization precipitation or easy scaling. The design and manufacture of ascending film evaporator is generally single-flow type mainly, (that is, once through can complete the concentration), when the concentration ratio of non-heat-sensitive materials requires larger, can also be designed into circulation type. The total heat transfer coefficient of ascending film evaporator is 600-6000W/(㎡*k).
Introduction to falling film evaporators
2022 / 03 / 07
Today's introduction is to one of the evaporators, the falling film evaporator. The structure of the falling film evaporator is approximately the same as that of the rising film evaporator, with the liquid being added from the top. Because of the liquid distribution device at the top, each tube can receive liquid evenly.The secondary steam and the concentrate generally flow down together, and due to the action of the secondary steam, the liquid flows in a film-like pattern along the wall of the tube.The downward flow of the liquid film uses gravity instead of overcoming it, thus allowing the evaporation of more viscous solutions. The heating tube length/diameter ratio L/d = 100-250 and the total heat transfer coefficient is 1200-3400 W (m²*K). In general, this kind of evaporator's material liquid can evaporate completely from top to bottom through once, if once can't reach the concentration index, also can use pump to circulate the material liquid for evaporation. The working principle of falling film evaporators: Falling film evaporation is the material liquid from falling film evaporator heating room on the tube box to join, through the liquid distribution and film-forming device, uniform distribution to each heat exchanger, in gravity and vacuum induced and airflow under the action, into a uniform film from top to bottom flow. In the process of flowing, it is heated and vaporized by the shell process heating medium, and the steam produced enters the separation chamber of the evaporator together with the liquid phase, and the gas and liquid are fully separated, and the steam enters the condenser to condense (single effect operation) or enters the next effect evaporator as heating medium, thus realizing multi-effect operation, and the liquid phase is discharged from the separation chamber.
Introduction to standard evaporators
2022 / 03 / 05
There are many different types of evaporator and today we are introducing one of them, the standard evaporator. The standard evaporator belongs to the category of natural circulation evaporators and its structure consists of a heating chamber and an evaporation chamber. The heating chamber is equipped with heating tubes with a diameter of 25-75, and the heating tubes are 0.6-2m long. In the middle of the tube bundle there is a central descending tube of larger diameter, the cross-sectional area of this tube is 40-100% of the total cross-section of the heating tube. Due to the difference in weight of the liquid in the central descending tube and the heating tube, the liquid is continuously circulated between the heating tube and the descending tube, thus improving the heat transfer effect of evaporation.The total heat transfer coefficient of this evaporator ranges from 580-3000W/(㎡*K). This kind of equipment is suitable for scaling is not serious, there is a small amount of crystallization precipitation and corrosive less solution. The heat transfer surface of the equipment can reach hundreds of square meters.
Introduction to inorganic permeable vapourisation membrane units
2022 / 03 / 04
Separation principle of inorganic permeable vapourisation membrane devices: Inorganic permeation vapourisation membranes mainly refer to molecular sieve membranes, which are a silica-aluminate film prepared on a porous inorganic carrier and are strongly hydrophilic. The organic solvent-water mixture is driven by the differential vapour pressure of the components, and the separation of the substances is achieved by the different rates of adsorption and diffusion of the components through the molecular sieve membrane. Its process flow: The organic-water mixture that meets the requirements of the incoming membrane enters the pre-heater, evaporator and superheater in turn through the transfer pump, and then the product is obtained in the form of steam after entering the membrane modules at all levels. Its technical features: 1. Energy efficient: more than 30-50% energy saving compared to traditional distillation and adsorption technologies 2. High recovery rate: the primary yield is not less than 97%, and the permeate recycling can reach more than 99%. 3. Environmentally friendly: no need to introduce a third component, while the permeate can be recovered for treatment and recycling. 4. Simple operation: production process control by PLC, real-time monitoring by HMI, high degree of automation. 5. Easy maintenance: small footprint, low equipment height, modular design, no civil engineering requirements. 6. Membrane performance: high flux, high separation coefficient, resistance to organic solvents, no swelling, long membrane life compared to organic membranes.
Introduction to methanol alcohol recovery towers
2022 / 03 / 03
Main uses of methanol alcohol recovery columns: Suitable for dilute alcohol recovery in pharmaceutical, food, light industry, chemical and other industries. The corresponding adjustment of the equipment can also be used for distillation and recovery of other solvents such as toluene and methanol. Such as the distillation of 30 ℃ dilute alcohol to 90 ℃ ~ 95 ℃, the finished alcohol reading requirements and then high, can increase the reflux ratio, but the output is relatively reduced. Its equipment features: Our factory uses highly efficient metal stainless steel packing, distillation tower is also generally made of stainless steel, thus preventing the phenomenon of iron filings blocking the tower packing and extending the service life of the device. At the same time, all equipment in contact with the solvent, such as condensers, pressure stabilisation tanks cooling snake tubes, etc. are made of stainless steel to ensure that the finished solvent is not contaminated. The choice of equipment material can also be determined according to the material situation. The distillation kettle uses a detachable U-shaped heating tube, which can be pulled out of the kettle during maintenance to facilitate cleaning of the outer wall of the heating tube and the wall of the distillation kettle. The unit can be produced intermittently or semi-continuously, or continuously.
Introduction to vacuum decompression concentration pumps
2022 / 03 / 02
The main components of a vacuum decompression concentration pump: 1.Concentrator 2.First condenser 3.Gas-liquid separator 4.Second condenser 5.Cooler 6.Receiving tank Its main uses are: This device is suitable for the concentration of liquid materials in the pharmaceutical, food and chemical industries. The evaporation intensity is generally 50-60Kg/㎡h and the specific gravity of the concentrated liquid is not greater than 1.25, otherwise it poses difficulties to the discharge. Materials of construction: The equipment mainly consists of six components: concentration tank, first condenser, gas-liquid separator, second condenser, cooler and liquid receiving drum, all made of stainless steel. The concentration tank is a jacketed structure, the condenser is a column tube type and the condenser is a snake tube type.
Introduction to spiral plate heat exchangers
2022 / 03 / 01
Spiral plate heat exchanger product description: Spiral plate heat exchanger is a highly efficient heat exchanger equipment for steam-vapour, steam-liquid, liquid-liquid, to liquid heat transfer.Commonly used in chemical, petroleum, solvent, pharmaceutical, food, light industry, textile, metallurgy, steel rolling, coking and other industries. Its structure and performance: The equipment is made of two rolled sheets, forming two uniform spiral channels, where two heat transfer media can flow in full countercurrent, greatly enhancing the heat exchange effect, even if two small temperature difference media, can also achieve the ideal heat exchange effect. The receiver on the shell adopts a tangential structure, with low local resistance. As the curvature of the spiral channels is uniform, the liquid flows in the equipment without a large turn, the total resistance is small, thus the design flow rate can be increased to make it have a high heat transfer capacity. When a single device cannot meet the requirements of use, more than one can be used in combination, but the combination must comply with the following provisions: parallel combination, series combination, equipment and channel spacing is the same. Mixed combination: one channel in parallel and one channel in series.
Introduction to Reactor Kettles
2022 / 02 / 28
The reactor is a comprehensive reaction vessel, designed according to the reaction conditions for the structural function and configuration of accessories, from the beginning of the feed - reaction - discharge, all can be completed with a high degree of automation of the pre-set reaction steps, the reaction process temperature, pressure, mechanical control (stirring, air blowing, etc.), reactants / product concentration and other important parameters for strict regulation. Reaction kettles are widely used in petroleum, chemical, rubber, pesticide, dyestuff, pharmaceutical, food and other production-oriented users and various scientific research experimental projects to complete the hydrolysis, neutralization, crystallization, distillation, evaporation, storage, hydrogenation, hydrocarbonization, polymerization, condensation, heating and mixing, constant temperature reaction and other process vessels. 1. Seal packing is used under atmospheric or low pressure conditions, the pressure is generally less than 2 kg. 2. Mechanical seals are used in medium pressure or evacuation situations, where the pressure is generally negative, or 40 kg. 3.Magnetic seals are used at high pressures or where the medium is highly volatile, generally at pressures in excess of 14 kg. In addition to the magnetic seal, which is cooled by water, other forms of seal will have additional cooling water jackets above 120 degrees. Its structure and form: The reaction kettle consists of the kettle body, cover, jacket, stirrer, transmission device, shaft sealing device, support, etc. The stirring form is generally anchor type, pulp type, turbine type, propulsion type or frame type, etc. When the height of the stirring device is relatively large, multi-layer stirring paddle is available, and can also be optional according to the user's requirements. The stirrer can be equipped with a jacket outside the kettle wall, or w
Introduction to unsaturated polyester resin equipment
2022 / 02 / 26
This equipment unit is a key piece of equipment for the production of unsaturated polyester resins, rosin resins, phenolic resins, epoxy resins, ABS resins, paints etc. The complete set of equipment produced by our factory consists of reaction kettles, vertical fractionation columns, horizontal condensers, water reservoirs, overflow tanks and pipelines (to dilution kettles). The whole set of equipment and material contact parts are made of stainless steel. Its main components are:1.Reactor 2.depending on the process: pipes, heaters, towers, etc.3.Heat exchangers 4.Heater 5.Backflow pipes Note: The kettle can be equipped with stainless steel coils; the heating method can also be steam heating or heat-conducting oil circulation heating if not using electric heating rods, our factory will design and manufacture according to the heating method chosen by the customer.
Introduction to the BM series of thin film evaporators
2022 / 02 / 25
The thin film evaporator unit is composed of three parts: evaporator, vapour-liquid separator, pre-heater and a simple separator. The evaporator has the characteristics of large production capacity, high efficiency and short heating time of materials, etc. It is suitable for the concentration of dilute solutions in pharmaceutical, food and chemical industries, etc. The contact parts of the equipment and materials are made of stainless steel, which has good corrosion resistance and is durable and meets the requirements of pharmaceutical hygiene. Note: The high level tank, rotor flow meter, water separator, process valve and pipeline are supplied by the user. The film evaporator unit produced by our factory consists of three parts: evaporator, gas-liquid separator, pre-heater and a simple separator. The evaporator is a rising film type column tube heat exchanger, which has the characteristics of large capacity, high efficiency and short heating time of materials, etc. It is suitable for the concentration of dilute solutions in pharmaceutical, food and chemical industries. The equipment and material contact parts are made of stainless steel, durable, with good corrosion resistance, in line with the pharmaceutical hygiene requirements.
Introduction to the LG series centrifugal scraper film evaporators
2022 / 02 / 24
Today we are introducing the LG series centrifugal scraper film evaporator. Its performance characteristics: This equipment adopts centrifugal sliding groove rotor, is the latest foreign structure evaporator, in the case of very small flow can also form a film, in the barrel evaporation section of the inner wall surface attached to the treatment liquid in the silt can be quickly removed by the activity scraper, and fixed gap scraper evaporator compared to the evaporation volume can be increased by 40-69%, it has the following performance and characteristics: 1.High heat transfer coefficient and high evaporation capacity. 2.The short heating time of the material, between about 5 and 10 seconds, and the fact that it works under vacuum conditions, is more favourable for heat-sensitive materials, keeping the various components without any decomposition and maintaining the quality of the product. 3.It is suitable for a wide range of viscosity variations and can handle both high and low viscosities. 4.Changing the direction of rotation of the scraper grooves regulates the beating time of the material in the evaporator. 5.The inner wall of the evaporation section is precision bored and polished, so that the surface is less prone to scaling and coking. 6.In terms of operation, the product indicators are easy to adjust and the production can be self-controlled for continuous production under confined conditions. 7.The equipment occupies a small area, has a simple structure, is easy to maintain and easy to clean.
Introduction to thin film evaporators
2022 / 02 / 23
Today's presentation is a thin film evaporator. Thin film evaporator is a new type of high efficiency evaporator which can be evaporated under vacuum conditions by forcing film formation through rotating film scraper and high speed flow, high efficiency of heat transfer and short residence time (about 10~50 seconds).It consists of one or more cylinders with jacketed heating and a rotating film scraper inside the cylinder. The scrapers continuously scrape the feed material into a uniformly thick liquid film as it is heated and moves downwards; in the process, the low boiling point portion is evaporated and the residue is discharged from the bottom of the evaporator. Application areas: In heat exchange engineering, scraper-type film evaporators are widely used. Especially for the heat exchange of heat-sensitive materials (short time), the scraping film evaporator facilitates the heat exchange and enables the distillation of complex products by means of different scraping film evaporator designs.
Introduction to continuous evaporation crystallisers
2022 / 02 / 22
Today's presentation is a continuous evaporation crystalliser. The continuous evaporation crystalliser, also known as the multi-effect evaporator, is suitable for the evaporation and crystallisation of sodium chloride, phenylalanine, sodium sulphate, ammonium chloride, glycine; barium chloride, zinc sulphate, calcium chloride, ammonium sulphate, sodium hydroxide and other materials. The purpose of multi-effect evaporation is to use secondary steam from the evaporation process in order to save steam consumption and improve the economic efficiency of the evaporation unit. Its characteristics are as follows: 1.The equipment is mainly used for the evaporation and concentration of targeted materials and to make the final product a solid crystalline of a certain size. 2.The liquid is quickly heated by the heater through the forced circulation pump and comes out of the top directly into the evaporation separator in a tangential manner, with good gas-liquid separation. 3.Compact structure, small footprint, stable performance, etc. 4.The equipment is easy to operate, easy to service and clean. 5.Sufficient mechanical strength with low metal consumption. According to the characteristics of the material and the size of the evaporation volume, it can be designed as a single- or multi-effect evaporation unit. This unit is mainly suitable for solutions with crystalline precipitation. It is mainly used in the chemical industry, smelting in metal mining, pickling waste solution in large steel mills, wet desulphurisation waste solution treatment in power plants, etc. In view of the characteristics and complexity of various solutions in each plant, our company will make specific technical solutions for the composition and content of the crystal precipitation solution provided by the user for reference and selection!
Introduction to stuffing box heat exchangers
2022 / 02 / 21
Today we introduce the stuffing box heat exchanger. The structural features are similar to those of the floating head type, but a stuffing box type sealing structure is used at the sliding contact surface between the floating head and the shell, allowing the tube bundle to expand and contract freely without generating thermal stress caused by the difference in thermal deformation between the shell wall and the tube wall. The structure is simple, easy to manufacture and inexpensive, and the tube bundle can be withdrawn from the shell for easy cleaning and maintenance.
Introduction to floating head heat exchangers
2022 / 02 / 19
Today we are introducing the floating head heat exchanger. Heat exchanger tube plate with a flange connected to the shell, another tube plate is not connected to the shell, in order to make the tube heat or cooling can be free to expand, but in this tube plate connected to a top cover, called the "floating head", so this heat exchanger called floating head heat exchanger. The advantage is that the tube bundle can be pulled out in order to clean; the expansion of the tube bundle does not change the shell restraint, so when the temperature difference between the two types of heat exchanger media, will not be due to the difference in the amount of thermal expansion of the tube bundle and shell and the temperature difference stress.
Introduction to fixed tube and plate heat exchangers
2022 / 02 / 18
Today is the introduction of tube heat exchanger, which is fixed tube plate heat exchanger. Fixed tube-plate heat exchanger has the advantages of simple structure, compact structure and low cost, but it cannot be mechanically cleaned outside the tube. The heat exchanger tube bundle is connected with the tube plate, the tube plate is welded at both ends of the shell, and is connected with the top cover, the top cover and the shell is provided with a fluid inlet and outlet pipe. A series of baffles perpendicular to the tube bundle are usually arranged outside the tube. At the same time, the connection between the tube and the tube plate and the shell is rigid, while inside and outside the tube are two kinds of fluid with different temperatures. Therefore, when the temperature difference between tube wall and shell wall is large, due to the different thermal expansion of the two, the temperature difference stress is very large, and even the tube bends or loosens the tube from the tubesheet, and even destroys the heat exchanger. In order to overcome temperature difference stress must have temperature difference compensation device, generally in the tube wall and shell wall temperature difference of more than 50℃, for the sake of safety, heat exchanger should have temperature difference compensation device. However, the compensation device (expansion joint) can only be used in the case that the temperature difference between shell wall and tube wall is less than 60 ~ 70℃ and the fluid pressure of shell side is not high. Generally, when the shell side pressure exceeds 0.6mpa, other structures should be considered because the compensation ring is too thick to expand and lose the function of temperature compensation.
Introduction to hydrogenation reactors
2022 / 02 / 17
First, one of the reactor types is introduced: hydrogenation reactor Generally speaking, the hydrogenation reaction kettle can be divided into two categories: one is the traditional mixing type reaction kettle, container gas within the liquid phase is not cycle, the upper space is not intermiscibility of gas and liquid, and the density difference is larger, not in reaction kettle, the reaction gas accumulation in the upper part of the reactor space, the serious influence the reaction rate, at the same time, the suspension of solid catalyst uneven also restricted the reaction rate; The other is the reaction kettle in which the gas is circulated in the liquid phase. Gas-liquid reaction is a reaction that is often encountered in petrochemical, fine chemical, biological chemical and pharmaceutical chemical industries. The typical application is catalytic hydrogenation, catalytic oxidation and fermentation. The size of the gas-liquid contact area significantly affects the reaction rate. The equipment consists of a special set of components designed to meet the mass transfer requirements and shear effects, high gas internal circulation and turbulence. Motor driven by internal hollow blender rotates, near the fluid in the impeller is circular motion under the action of centrifugal force makes the blender imbibition is generated, and thus form a negative pressure zone, and its internal are connected to the gas through a hollow shaft, so that the gas flowing on the surface of the liquid suction blender to be dispersed in the liquid phase, Especially suitable for gas-liquid, gas-liquid-solid heterogeneous reaction processes, such as liquid phase catalytic hydrogenation, oxidation, amination, alkylation, fluorination, etc.
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