CN118341352A - Circulating continuous hydrogenation reaction equipment - Google Patents
Circulating continuous hydrogenation reaction equipment Download PDFInfo
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- CN118341352A CN118341352A CN202410706562.1A CN202410706562A CN118341352A CN 118341352 A CN118341352 A CN 118341352A CN 202410706562 A CN202410706562 A CN 202410706562A CN 118341352 A CN118341352 A CN 118341352A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
- B01J8/0085—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction promoting uninterrupted fluid flow, e.g. by filtering out particles in front of the catalyst layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/085—Feeding reactive fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
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Abstract
The invention relates to circulating continuous hydrogenation reaction equipment which comprises a static mixer, a reaction kettle, a buffer tank, a gas-liquid separation tank, a collection tank, a catalyst filter, a recovery tank, a hydrogen tank, a catalyst tank and a raw material tank; the static mixer comprises a new catalyst filling port, a recovered catalyst filling port, a raw material port and a discharge port, wherein the raw material tank and the catalyst tank are respectively communicated with the raw material port and the new catalyst filling port through corresponding pumps, the discharge port of the static mixer is communicated with the inlet of the reaction kettle, and the hydrogen tank is communicated with the air inlet of the reaction kettle through a pipeline; the discharge port of the reaction kettle is sequentially connected with a buffer tank and a gas-liquid separation tank through pipelines, the gas phase of the gas-liquid separation tank produces a product, the liquid phase enters a collecting tank, the collecting tank is connected to a catalyst filter through a pump, and a recovery tank is communicated with the recovered catalyst filling port through the pump. The invention realizes the efficient mixing of raw materials and the catalyst, the continuous reaction, the effective separation of products and the recovery of the catalyst, and reduces the production cost.
Description
Technical Field
The invention relates to the technical field of continuous hydrogenation, in particular to circulating continuous hydrogenation reaction equipment.
Background
Along with the increasingly strong competition of the fine chemical industry, the production efficiency, productivity, safety, environmental protection and other factors of each production enterprise are continuously improved. At present, part of fine chemical enterprises have hydrogenation processes, and the development of the industries can not be satisfied obviously by adopting the traditional production mode (intermittent hydrogenation) in the hydrogenation processes, and part of industries and enterprises.
Continuous operation is to continuously feed various reaction materials into a reactor at a certain ratio and constant speed, and continuously discharge reaction products from the reactor at a constant speed; under normal operation, the composition of the reaction mass, the temperature and the pressure at a specific location in the reactor are in principle constant.
The kettle type continuous hydrogenation reaction is characterized by continuous feeding and continuous discharging; the catalyst can be automatically circulated to the reaction system by connecting two or more kettles in series. The heat exchanger is arranged in the kettle type continuous hydrogenation reaction, and the temperature control is stable; the process is flexible, and the yield is adjustable; the batch process with less material and solvent loss.
For example, the nitro hydrogenation has the problems of high heat release capacity and high tar which is generated by untimely heat exchange, the kettle type continuous reaction can greatly reduce the solvent consumption, and some reactions can be carried out without solvent hydrogenation. The kettle type continuous hydrogenation reaction process has the advantages of short flow, small equipment investment, simple and convenient operation, continuous production, stable product quality and low production cost. The device is suitable for the construction of large-scale industrial production, and has reliable safety performance and green and environment-friendly automation degree.
The low mixing efficiency of hydrogen and internal feedstock is also one of the problems with continuous hydrogenation structures. In the reaction kettle, the mixing effect of the hydrogen and the raw materials directly influences the reaction. However, in the existing continuous hydrogenation structure, the mixture of hydrogen and raw materials is often not uniform enough, so that partial areas are over or under reacted, and the reaction efficiency and the product quality are affected. In addition, the low mixing efficiency can also lead to uneven distribution of hydrogen in the reaction kettle, so that partial hydrogen can not fully participate in the reaction, and the utilization rate of the hydrogen is reduced. Meanwhile, the low reaction efficiency can cause a series of problems such as the generation of byproducts, the waste of energy sources, environmental pollution and the like; based on this, it is necessary to study a cyclic continuous hydrogenation reaction apparatus.
Disclosure of Invention
In view of the above, the invention aims to provide a circulating continuous hydrogenation reaction device, which effectively solves the problems of low catalyst use efficiency, low mixing efficiency of hydrogen and raw materials, low reaction efficiency, low hydrogen utilization rate and the like of the existing continuous hydrogenation structure.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a circulating continuous hydrogenation reaction device comprises a static mixer, a reaction kettle, a buffer tank, a gas-liquid separation tank, a collection tank, a catalyst filter, a recovery tank, a hydrogen tank, a catalyst tank and a raw material tank; the static mixer comprises a new catalyst filling port, a recovered catalyst filling port, a raw material port and a discharge port, wherein the raw material tank and the catalyst tank are respectively communicated with the raw material port and the new catalyst filling port through corresponding pumps, the discharge port of the static mixer is communicated with the inlet of the reaction kettle, and the hydrogen tank is communicated with the air inlet of the reaction kettle through a pipeline; the discharge gate of reation kettle is connected with buffer tank, gas-liquid separation jar in proper order through the pipeline, and the gas phase of gas-liquid separation jar produces the product, and the liquid phase gets into the collecting vessel in, and the collecting vessel is connected to in the catalyst filter through the pump, and the catalyst filter is discharged through impurity outward through filtering, and the catalyst of output gets into in the recovery jar, the recovery jar through the pump with retrieve catalyst filler intercommunication.
Further, the static mixer comprises a shell, an air inlet chamber and a mixing chamber, wherein a partition plate is arranged in the shell and divides the interior of the shell into the air inlet chamber and the mixing chamber, and a communication port for communicating the air inlet chamber and the mixing chamber is formed in the partition plate; a new catalyst filling port, a recovered catalyst filling port and a raw material port are arranged in the air inlet chamber; a spiral mixing piece is arranged in the mixing chamber, and a discharge port is arranged at the tail end of the mixing chamber.
Further, the reaction kettle comprises a first reaction kettle, a second reaction kettle and a third reaction kettle; the reaction kettle is internally provided with an air inlet, a feed inlet and a discharge port, the first reaction kettle, the second reaction kettle and the third reaction kettle are arranged in series, the discharge port of the upper stage is connected with the feed inlet of the lower stage through a balance pipe, the hydrogen tank is connected with a main pipe, and the main pipe is connected with the corresponding reaction kettle through each branch pipe.
Further, the reaction kettle comprises a kettle body, a cover body, a rotating shaft, a circulating gas shaft and self-suction type blades; the upper part of the kettle body is provided with a cover body, the middle part of the cover body is connected with a rotating shaft through a sealing bearing, the upper part of the rotating shaft is in transmission connection with an external rotating motor, the lower part of the rotating shaft is connected with a hollow circulating gas shaft, the upper part of the circulating gas shaft is provided with a gas inlet, and the inner cavity of the lower part of the circulating gas shaft is communicated with self-priming pulp; the self-suction type blade comprises a seat body and an arc-shaped air outlet pipe, wherein the seat body is fixed at the bottom of a circulating air shaft, an inner cavity communicated with the circulating air shaft is formed in the seat body, and the arc-shaped air outlet pipe is uniformly distributed and fixed on the seat body along the circumference and communicated with the inner cavity.
Further, the lower part of the base body is provided with a stirring shaft, and the lower part of the stirring shaft is provided with stirring blades.
Further, the bottom of (mixing) shaft still is provided with the dispersion disk, and the bottom of dispersion disk is provided with the hydrogen intake pipe.
Further, the cover body is provided with an air blowing mechanism, and the air blowing mechanism comprises a driving gear, a fixed cover, a driven gear, a bevel gear set, a notch gear, a rack, a reset sleeve, a spring, a baffle plate, a driving sleeve, an air cylinder and a nozzle; the driving gear is fixedly sleeved on the rotating shaft, the fixed cover is fixed on the cover body, the driven gear is arranged in the fixed cover, and the driven gear is in transmission connection with the notch gear through the shaft and the bevel gear set; a guide rod is fixed in the fixed cover, a reset sleeve is sleeved on the guide rod, a rack is fixed on one side of the reset sleeve, and the rack is meshed with the notch gear; a baffle is fixed on the guide rod, the baffle is positioned in the reset sleeve, and a spring is sleeved on the guide rod and positioned between the baffle and one end of the reset sleeve; the driving sleeve is fixed at the bottom of the resetting sleeve, the inflator assembly comprises a push rod, a piston and a cylinder body, the piston is fixed at the bottom of the push rod, the upper part of the push rod is fixedly connected with the driving sleeve, the piston is sleeved in the cylinder body, the cylinder body is provided with an air inlet and an air outlet, the air inlet is communicated with the inner part of the kettle body, and the air outlet is connected with the nozzle through a pipeline.
Further, the reset sleeve comprises a sleeve and a plug; the two ends of the sleeve are opened and are provided with internal threads, the plug is in threaded connection with the internal threads, a sliding hole is formed in the center of the plug, and the sliding hole is matched and sleeved with the guide rod.
The beneficial effects of the technical scheme are as follows: the invention provides a circulating continuous hydrogenation reaction device, which integrates a plurality of key components to realize continuous supply, efficient mixing and effective separation and recovery of reaction products of raw materials and catalysts, thereby remarkably improving the efficiency and quality of hydrogenation reaction and having the following effects;
1, high-efficiency continuous operation:
The design of the static mixer allows continuous addition of raw materials, recovered catalyst and new catalyst, thereby realizing continuous reaction, avoiding waiting time in intermittent operation and improving production efficiency.
Through connecting a plurality of reaction kettles in series, a multistage reaction system is formed, the reaction path is prolonged, the reaction depth is improved, and the whole system can continuously and stably run.
2, Optimizing the mixing of raw materials and a catalyst:
The spiral mixing piece in the static mixer can effectively promote the mixing of the raw materials and the catalyst, and improves the contact area between reactants, thereby accelerating the reaction rate.
The separation design of the air inlet chamber and the mixing chamber enables hydrogen to be uniformly mixed with raw materials and catalysts, and the reaction effect is further improved.
And 3, designing and innovating a reaction kettle:
The combination of the self-suction type blade and the stirring shaft ensures that materials in the reaction kettle can be fully stirred and circulated, improves the uniformity and the efficiency of the reaction, ensures that hydrogen is recycled in the reaction kettle, and improves the utilization rate of the hydrogen.
The setting of dispersion impeller and hydrogen intake pipe for hydrogen can more evenly distribute to reation kettle's bottom, thereby has improved hydrogen utilization ratio and reaction efficiency.
4, Product separation and catalyst recovery:
Through the combination of the buffer tank, the gas-liquid separation tank and the collecting tank, the effective separation of reaction products is realized, and the purity and quality of the products are improved.
The design of the catalyst filter and the recovery tank enables the catalyst to be effectively recovered and reused, reduces the production cost and reduces the pollution to the environment.
5, Intelligent and automatic control:
The design of the air blowing mechanism realizes automatic blowing of the gas in the reaction kettle by a mechanical transmission and pneumatic principle, enhances the uniformity and stability of the reaction, further improves the circulation of the gas in the reaction kettle and improves the utilization rate.
The whole system can be accurately regulated and controlled through an advanced automatic control system, and each operation parameter is ensured to be in an optimal range, so that the controllability and the stability of the reaction are improved.
In summary, the circulating continuous hydrogenation reaction equipment realizes the efficient mixing of raw materials and catalysts, the continuous reaction, the effective separation of products and the recovery of the catalysts through the unique design and the assembly integration, thereby remarkably improving the efficiency and the quality of hydrogenation reaction, reducing the production cost and having remarkable beneficial effects.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a static mixer;
FIG. 3 is a schematic diagram of an implementation structure of a reaction kettle;
FIG. 4 is a schematic view of a self-priming blade configuration;
FIG. 5 is a schematic diagram of the structure of the air blowing mechanism;
FIG. 6 is a schematic diagram of the mating structure of the notched gear, rack, and reset sleeve;
Fig. 7 is a schematic view of the compression state of the spring inside the reset sleeve.
Reference numerals: 1-raw material tank, 2-heater, 3-catalyst tank, 4-static mixer, 41-shell, 42-baffle, 43-inlet chamber, 431-new catalyst filling port, 432-raw material port, 433-recovered catalyst filling port; 44-mixing chamber, 441-discharge port, 45-spiral mixing blade; the device comprises a 5-hydrogen tank, a 6-first reaction kettle, a 7-second reaction kettle, a 8-third reaction kettle, a 9-buffer tank, a 10-gas-liquid separation tank, a 11-collecting tank, a 12-catalyst filter, a 13-recovery tank, a 14-kettle body, a 15-cover body, a 16-rotating shaft, a 17-stirring motor, a 18-circulating gas shaft, a 19-gas inlet, a 20-self-priming blade, a 201-seat body, a 202-arc-shaped gas outlet pipe, a 21-stirring shaft, a 22-dispersing disc, a 23-gas inlet pipe, a 24-feeding pipe, a 25-driving gear, a 26-fixed cover, a 27-driven gear, a 28-cone gear set, a 29-notch gear, a 30-guide rod, a 31-reset sleeve, a 311-sleeve body, a 312-plug, a 32-spring, a 33-baffle, a 34-driving sleeve, a 35-push rod, a 36-piston, a 23-cylinder body, a 38-gas inlet, a 39-one-way valve and a 40-nozzle.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
Embodiment 1 aims to provide a circulating type continuous hydrogenation reaction device which is mainly used for continuous hydrogenation reaction, aims at solving the problems of low catalyst use efficiency, low mixing efficiency of hydrogen and raw materials, low reaction efficiency, low hydrogen utilization rate and the like of the conventional continuous hydrogenation structure, adopts a continuous operation mode, realizes continuous feeding and continuous discharging of raw materials and automatic recycling of the catalyst, thereby improving reaction efficiency, productivity and product quality, and reducing production cost and environmental pollution.
In a specific embodiment, as shown in fig. 1, a circulating continuous hydrogenation reaction apparatus comprises a static mixer 4, a reaction kettle, a buffer tank 9, a gas-liquid separation tank 10, a collection tank 11, a catalyst filter 12, a recovery tank 13, a hydrogen tank 5, a catalyst tank 3 and a raw material tank 1; the static mixer 4 comprises a new catalyst filling port 431, a recovered catalyst filling port 433, a raw material port 432 and a discharge port 441, wherein the raw material tank 1 and the catalyst tank 3 are respectively communicated with the raw material port 432 and the new catalyst filling port 431 through corresponding pumps, the discharge port of the static mixer 4 is communicated with the inlet of the reaction kettle, and the hydrogen tank 5 is communicated with the air inlet of the reaction kettle through a pipeline; in the implementation, the raw material tank 1 is communicated with a raw material port through a pump and a heater; the catalyst tank 3 is communicated with a new catalyst filling port through a pump, a pipeline and a valve.
The static mixer 4 includes a housing 41, an intake chamber 43, and a mixing chamber 44, a partition plate 42 is provided inside the housing, the partition plate 42 divides the interior of the housing 41 into the intake chamber 43 and the mixing chamber 44, and a communication port that communicates the intake chamber and the mixing chamber is provided on the partition plate 42; a new catalyst filling port 431, a recovered catalyst filling port 433 and a raw material port 432 are provided in the intake chamber 43; a spiral mixing plate 45 is provided in the mixing chamber 44, and a discharge port 441 is provided at the end of the mixing chamber.
The discharge gate of reation kettle is connected with buffer tank 9, gas-liquid separation jar 10 in proper order through the pipeline, and the gaseous phase of gas-liquid separation jar 10 produces the product, and the liquid phase gets into collecting vessel 11, and collecting vessel 11 is connected to in the catalyst filter 12 through the pump, and catalyst filter 12 is discharged through impurity outward through filtering, and the catalyst of output gets into in retrieving jar 13, retrieving jar 13 through the pump with retrieve catalyst filler intercommunication.
The reaction kettle comprises a first reaction kettle 6, a second reaction kettle 7 and a third reaction kettle 8; the reaction kettle is internally provided with an air inlet, a feed inlet and a discharge port, the first reaction kettle 6, the second reaction kettle 7 and the third reaction kettle 8 are arranged in series, the discharge port of the upper stage is connected with the feed inlet of the lower stage through a balance pipe, the hydrogen tank 5 is connected with a main pipe, and the main pipe is connected with the corresponding reaction kettle through each branch pipe.
The reaction kettle comprises a kettle body 14, a cover body 15, a rotating shaft 16, a circulating gas shaft 18 and self-suction type blades 20; the upper part of the kettle body 14 is provided with a cover body 15, the middle part of the cover body 15 is connected with a rotating shaft 16 through a sealing bearing, the upper part of the rotating shaft 16 is in transmission connection with an external rotating motor 17, the lower part of the rotating shaft 16 is connected with a hollow circulating gas shaft 18, the upper part of the circulating gas shaft 18 is provided with a gas inlet 19, and the inner cavity of the lower part of the circulating gas shaft is communicated with a self-priming blade 20; the self-suction type blade 20 comprises a base 201 and an arc-shaped air outlet pipe 202, wherein the base 201 is fixed at the bottom of the circulating air shaft 18, an inner cavity communicated with the circulating air shaft 18 is formed in the base, and the arc-shaped air outlet pipe 202 is uniformly distributed and fixed on the base along the circumference and communicated with the inner cavity.
A stirring shaft is arranged at the lower part of the base 201, and stirring blades are arranged at the lower part of the stirring shaft 21; the bottom of the stirring shaft is also provided with a dispersion plate 22, and the bottom of the dispersion plate 22 is provided with a hydrogen inlet pipe 24.
The design of the circulating continuous hydrogenation reaction equipment has obvious beneficial effects in the chemical production process, not only improves the reaction efficiency, but also optimizes the utilization of the catalyst, so that the whole production flow is more efficient and stable.
First, the unique design of the static mixer 4 allows for adequate mixing of the feedstock and catalyst prior to addition to the reaction vessel. The efficient mixing mode ensures the uniformity of the reaction, improves the utilization rate of the catalyst and reduces the consumption of the catalyst. Meanwhile, due to the design of the new catalyst and the filling port for recycling the catalyst, the catalyst is added and recycled more conveniently, and the operability of the equipment is further improved.
And secondly, the multistage serial connection design of the reaction kettle enables the reaction to go deep gradually, and improves the conversion rate and selectivity of the reaction. The balance pipes are connected with the reaction kettles, so that the stability of material flow is guaranteed, and the reaction kettles can cooperate with each other to jointly complete hydrogenation reaction. In addition, due to the design of a main pipe and a branch pipe between the hydrogen tank 5 and each reaction kettle, the supply of hydrogen is more uniform, and the reaction efficiency and stability are further improved.
The self-priming type paddle 20 and the stirring shaft in the reaction kettle are designed, so that materials can be sufficiently stirred and circulated in the reaction kettle. The design not only improves the contact area between reactants, but also makes the reaction more uniform, and avoids the problem of excessive or insufficient local reaction. Meanwhile, due to the arrangement of the dispersing disc and the hydrogen inlet pipe, hydrogen can be more uniformly distributed at the bottom of the reaction kettle, and the utilization rate and the reaction efficiency of the hydrogen are further improved.
Finally, by the combination of the buffer tank 9, the gas-liquid separation tank 10 and the collection tank 11, efficient separation and collection of the reaction products is achieved. The design not only improves the purity and quality of the product, but also ensures that the whole production flow is more environment-friendly and energy-saving. Meanwhile, the design of the catalyst filter 12 and the recovery tank 13 enables the catalyst to be effectively recovered and reused, so that the production cost is reduced, and the economic benefit is improved.
In summary, the circulating continuous hydrogenation reaction equipment realizes the efficient mixing of raw materials and catalysts, the continuous reaction, the effective separation of products and the recovery of the catalysts through the unique design and the assembly integration, and has remarkable beneficial effects. In the chemical production process, the equipment can improve the production efficiency, reduce the production cost and improve the product quality, and brings considerable economic and social benefits for enterprises
Example 2, the mounting structure of this example will be further described.
In this embodiment, further, an air blowing mechanism is disposed on the cover 15, and the air blowing mechanism includes a driving gear 25, a fixed cover 26, a driven gear 27, a bevel gear set 28, a notch gear 29, a rack, a reset sleeve 31, a spring 32, a baffle 33, a driving sleeve 34, an air cylinder and a nozzle 40; the driving gear 25 is fixedly sleeved on the rotating shaft 16, the fixed cover 26 is fixed on the cover body 15, the driven gear 27 is arranged in the fixed cover 26, and the driven gear 27 is in transmission connection with the notch gear 29 through the shaft and bevel gear set 28; a guide rod 30 is fixed in the fixed cover 26, a reset sleeve 31 is sleeved on the guide rod 30, a rack is fixed on one side of the reset sleeve 31, and the rack is meshed with the notch gear 29; a baffle plate 33 is fixed on the guide rod 30, the baffle plate 33 is positioned in the reset sleeve 31, and a spring 32 is sleeved on the guide rod and positioned between the baffle plate 33 and one end of the reset sleeve 31; the driving sleeve 34 is fixed at the bottom of the resetting sleeve 31, the inflator assembly comprises a push rod, a piston and a cylinder body, the piston is fixed at the bottom of the push rod, the upper part of the push rod is fixedly connected with the driving sleeve 34, the piston is sleeved in the cylinder body, an air inlet and an air outlet are arranged on the cylinder body, the air inlet is communicated with the inside of the kettle body 14, and the air outlet is connected with the nozzle 40 through a pipeline.
Further, the reset sleeve 31 includes a sleeve 311 and a plug 312; the two ends of the sleeve 311 are open and are provided with internal threads, the plug 312 is in threaded connection with the internal threads, and a sliding hole is arranged in the center of the plug and is matched and sleeved with the guide rod 30.
The addition of the air blowing mechanism provides strong power for the air flow in the reaction kettle. Through mechanical transmission and pneumatic principle, the air blowing mechanism can automatically blow air into the reaction kettle, so that the uniformity and stability of the reaction are enhanced. The design not only improves the reaction efficiency, but also reduces the labor intensity of operators.
The above-mentioned embodiments of the present invention do not limit the scope of the present invention, and the present invention is basically conceived to provide a cyclic continuous hydrogenation reaction apparatus, which adopts a continuous operation mode, and realizes continuous feeding and continuous discharging of raw materials, and automatic recycling of catalysts, thereby improving reaction efficiency, productivity, product quality, and reducing production cost and environmental pollution. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention as set forth in the appended claims.
Claims (8)
1. A circulating continuous hydrogenation reaction device is characterized in that: comprises a static mixer, a reaction kettle, a buffer tank, a gas-liquid separation tank, a collection tank, a catalyst filter, a recovery tank, a hydrogen tank, a catalyst tank and a raw material tank; the static mixer comprises a new catalyst filling port, a recovered catalyst filling port, a raw material port and a discharge port, wherein the raw material tank and the catalyst tank are respectively communicated with the raw material port and the new catalyst filling port through corresponding pumps, the discharge port of the static mixer is communicated with the inlet of the reaction kettle, and the hydrogen tank is communicated with the air inlet of the reaction kettle through a pipeline; the discharge gate of reation kettle is connected with buffer tank, gas-liquid separation jar in proper order through the pipeline, and the gas phase of gas-liquid separation jar produces the product, and the liquid phase gets into the collecting vessel in, and the collecting vessel is connected to in the catalyst filter through the pump, and the catalyst filter is discharged through impurity outward through filtering, and the catalyst of output gets into in the recovery jar, the recovery jar through the pump with retrieve catalyst filler intercommunication.
2. The cyclic continuous hydrogenation reaction apparatus according to claim 1, characterized in that: the static mixer comprises a shell, an air inlet chamber and a mixing chamber, wherein a partition plate is arranged in the shell and divides the interior of the shell into the air inlet chamber and the mixing chamber, and a communication port for communicating the air inlet chamber and the mixing chamber is formed in the partition plate; a new catalyst filling port, a recovered catalyst filling port and a raw material port are arranged in the air inlet chamber; a spiral mixing piece is arranged in the mixing chamber, and a discharge port is arranged at the tail end of the mixing chamber.
3. The cyclic continuous hydrogenation reaction apparatus according to claim 1, characterized in that: the reaction kettles comprise a first reaction kettle, a second reaction kettle and a third reaction kettle; the reaction kettle is internally provided with an air inlet, a feed inlet and a discharge port, the first reaction kettle, the second reaction kettle and the third reaction kettle are arranged in series, the discharge port of the upper stage is connected with the feed inlet of the lower stage through a balance pipe, the hydrogen tank is connected with a main pipe, and the main pipe is connected with the corresponding reaction kettle through each branch pipe.
4. A cyclic continuous hydrogenation reaction apparatus according to any one of claims 1-3, characterized in that: the reaction kettle comprises a kettle body, a cover body, a rotating shaft, a circulating gas shaft and self-suction type blades; the upper part of the kettle body is provided with a cover body, the middle part of the cover body is connected with a rotating shaft through a sealing bearing, the upper part of the rotating shaft is in transmission connection with an external rotating motor, the lower part of the rotating shaft is connected with a hollow circulating gas shaft, the upper part of the circulating gas shaft is provided with a gas inlet, and the inner cavity of the lower part of the circulating gas shaft is communicated with self-priming pulp; the self-suction type blade comprises a seat body and an arc-shaped air outlet pipe, wherein the seat body is fixed at the bottom of a circulating air shaft, an inner cavity communicated with the circulating air shaft is formed in the seat body, and the arc-shaped air outlet pipe is uniformly distributed and fixed on the seat body along the circumference and communicated with the inner cavity.
5. The cyclic continuous hydrogenation reaction apparatus according to claim 4, wherein: the lower part of the base body is provided with a stirring shaft, and the lower part of the stirring shaft is provided with stirring blades.
6. The cyclic continuous hydrogenation reaction apparatus according to claim 5, characterized in that: the bottom of (mixing) shaft still is provided with the dispersion disk, and the bottom of dispersion disk is provided with the hydrogen intake pipe.
7. The cyclic continuous hydrogenation reaction apparatus according to claim 4, wherein: the cover body is provided with an air blowing mechanism, and the air blowing mechanism comprises a driving gear, a fixed cover, a driven gear, a bevel gear set, a notch gear, a rack, a reset sleeve, a spring, a baffle plate, a driving sleeve, an air cylinder and a nozzle; the driving gear is fixedly sleeved on the rotating shaft, the fixed cover is fixed on the cover body, the driven gear is arranged in the fixed cover, and the driven gear is in transmission connection with the notch gear through the shaft and the bevel gear set; a guide rod is fixed in the fixed cover, a reset sleeve is sleeved on the guide rod, a rack is fixed on one side of the reset sleeve, and the rack is meshed with the notch gear; a baffle is fixed on the guide rod, the baffle is positioned in the reset sleeve, and a spring is sleeved on the guide rod and positioned between the baffle and one end of the reset sleeve; the driving sleeve is fixed at the bottom of the resetting sleeve, the inflator assembly comprises a push rod, a piston and a cylinder body, the piston is fixed at the bottom of the push rod, the upper part of the push rod is fixedly connected with the driving sleeve, the piston is sleeved in the cylinder body, the cylinder body is provided with an air inlet and an air outlet, the air inlet is communicated with the inner part of the kettle body, and the air outlet is connected with the nozzle through a pipeline.
8. The cyclic continuous hydrogenation reaction apparatus according to claim 7, characterized in that: the reset sleeve comprises a sleeve and a plug; the two ends of the sleeve are opened and are provided with internal threads, the plug is in threaded connection with the internal threads, a sliding hole is formed in the center of the plug, and the sliding hole is matched and sleeved with the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410706562.1A CN118341352A (en) | 2024-06-03 | 2024-06-03 | Circulating continuous hydrogenation reaction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410706562.1A CN118341352A (en) | 2024-06-03 | 2024-06-03 | Circulating continuous hydrogenation reaction equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119113936A (en) * | 2024-09-06 | 2024-12-13 | 浙江荣凯科技发展股份有限公司 | A continuous hydrogenation device for 1,3-cyclohexanedione |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119113936A (en) * | 2024-09-06 | 2024-12-13 | 浙江荣凯科技发展股份有限公司 | A continuous hydrogenation device for 1,3-cyclohexanedione |
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