Reaction kettle for processing propamocarb hydrochloride

Abstract

The invention discloses a reaction kettle for processing propamocarb hydrochloride, and relates to the field of mixed processing, the propamocarb hydrochloride is an efficient and low-toxicity internal absorptive carbamate bactericide, and a propamocarb hydrochloride aqueous solution is widely applied up to now. In the scheme, during preparation, a pump body pumps the solution from a stock bin into a transfer bin, so that the liquid level above a rotary disc is increased, and the liquid level above the rotary disc is increased; when the liquid level reaches a threshold value, the exhaust float valve is closed, at the moment, the pressure is continuously and rapidly increased, along with the pressure increase, the first piston moves upwards to drive the rotary disc to slightly rotate, the passing ability is increased, the pressure difference between the upper portion and the lower portion is maintained, meanwhile, the penetrating solution penetrates through the fixed disc to be scattered and fall down and makes full contact with circulating nitrogen in the pressure reduction environment, and efficient recovery of the additive is achieved. The circulating flow pressure difference is efficiently formed through the conveying speed of the pump body in combination with the passing property change of the pressure control assembly on the solution, a dripping rain curtain shape is formed and can make full contact with nitrogen, and the overall additive recycling speed is greatly increased in combination with low-speed stirring and heating.

Description

Technical Field

[0001] The invention relates to the field of mixing processing, and in particular to a reaction kettle for processing propamocarb hydrochloride. Background Art

[0002] Felocarb hydrochloride is a highly efficient, low-toxic systemic carbamate fungicide. Felocarb hydrochloride aqueous solution has been widely used to prevent and control cucumber downy mildew, damping-off disease, sweet pepper blight, etc. N-propyl chloroformate and NN-dimethylpropylenediamine are two important intermediates for the preparation of floxacin hydrochloride. However, there are many problems in the current production process, such as the addition of many raw materials and additives, which makes the excess additives at the end of the reaction need to be recovered. NN-dimethylpropylenediamine is salified and dehydrated with recycled hydrochloric acid to form NN-dimethylpropylenediamine hydrochloride. The concentration and dosage of recycled hydrochloric acid added during the synthesis process are optimized, the reaction temperature and stirring time are controlled, and the acidity is monitored at all times to ensure that N,N-dimethylpropylenediamine and hydrochloric acid are fully reacted to form salts, and the additives are removed by heating and vacuuming. The excess hydrochloric acid enters the hydrochloric acid falling film absorption tower for reuse. NN-dimethylpropylenediamine hydrochloride reacts with n-propyl chloroformate to form floxacin hydrochloride technical.

[0003] The above process is mixed and stirred at a predetermined temperature to prepare hydrochloride by condensation reaction. During the preparation process, it is necessary to circulate and flow in conjunction with the stirring process to maintain uniformity. After the reaction is completed, it is necessary to perform reduced pressure distillation so that the circulating nitrogen is introduced under low-speed stirring at a suitable temperature to recover the additive; Most of the current reactors use vacuum pumps to control the low-pressure environment, so that part of the air is discharged through the reactor to cause pollution. At the same time, simple low-speed stirring in a low-pressure environment has a relatively low recovery rate for additives. Process optimization of this step can effectively shorten the product preparation cycle. Based on this, this solution is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of low recovery rate of additives in the conventional vacuum distillation of propamocarb hydrochloride and to propose a reactor for processing propamocarb hydrochloride.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a reactor for processing cymoxanil hydrochloride, comprising a tank body and a stirring assembly installed thereon, and a circulation assembly connected to one side of the tank body, and also comprising a pressure control assembly installed in the tank body, wherein the circulation assembly comprises a pump body for circulating a solution in the tank body and a pressure fluctuation chamber connected to the top thereof, wherein the pressure control assembly comprises a fixed plate and a rotating plate fitted to each other, and a vertical sleeve for controlling the rotating plate and the fixed plate to be staggered during vertical displacement, and a first piston is arranged on the top of the vertical sleeve; When the solution circulates, the rotating disk and the fixed disk limit the solution reflux rate and separate the tank body to form a high-pressure space at the top and a low-pressure space at the bottom. The stirring assembly drives the pressure fluctuation chamber to interfere with the fluctuation of the high-pressure space at the top. The solution reflux rate changes intermittently with the pressure fluctuation, enters the low-pressure environment, forms intermittent liquid falling and distills under reduced pressure.

[0006] As a further description of the above technical solution: the tank body includes a silo and a temperature control silo sealed and attached thereto, and a discharge port opened at the bottom of the silo, and a transfer silo is sealed and installed on the top of the silo.

[0007] As a further description of the above technical solution: the stirring assembly includes a shaft seat that is sealed and installed through the top of the transfer bin, and a motor seat fixed on the top of the shaft seat, and a driver is installed on the top of the motor seat, and the output end of the driver is equipped with a stirring shaft through a coupling transmission, and the stirring shaft is rotatably installed in the shaft seat and the motor seat.

[0008] As a further description of the above technical solution: the circulation component also includes a three-way pipe connected to the liquid outlet of the pump body, and the two ends of the three-way pipe are respectively connected to the transfer bin and the pressure fluctuation chamber, the liquid inlet of the pump body is connected to the discharge port, and a pressure gauge is installed on one side of the three-way pipe.

[0009] As a further description of the above technical solution: the pressure fluctuation chamber includes a pressure chamber connected to one end of the tee pipe and a second piston sliding therein, and the second piston and the inner wall of the pressure chamber are jointly equipped with a spring, a push rod sliding through one side of the pressure chamber is fixed to one side of the second piston, and a cam is provided at the axial position of the push rod, the cam is fixed on the stirring shaft, a pulley is provided at the end of the push rod, and the pressure chamber is fixed to the top of the transfer bin.

[0010] As a further description of the above technical solution: the pressure control assembly also includes a sealing chamber fixed in the transfer chamber, the first piston slides in the sealing chamber, and the first piston and the top of the sealing chamber are symmetrically provided with two groups of magnetic blocks with the same relative magnetic pole directions.

[0011] As a further description of the above technical solution: the side wall of the bottom end of the vertical sleeve is provided with a plurality of inclined guide grooves, the inner wall of the turntable is provided with a plurality of sliding blocks that slide in cooperation with the inclined guide grooves, the turntable is rotatably installed between the transfer bin and the silo, and the fixed plate is pressed against the inner wall of the silo, and the vertical sleeve slides on the shaft seat.

[0012] As a further description of the above technical solution: an exhaust float valve for controlling the liquid level therein is installed on the top of the transfer bin, and a plurality of feed ports are arranged on the top of the transfer bin.

[0013] As a further description of the above technical solution: a through hole is opened on the top of the transfer bin to cooperate with the gas displacement above the first piston.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In this scheme, when stirring, the pump body operates at low power and the stirring component operates at high power to maintain rapid shear stirring of the circulating solution. When the reaction is completed, the pump body operates at high power to pump the solution from the silo to the transfer bin. At this time, the staggered apertures between the rotary disk and the fixed disk cannot meet the large flow of solution, so that the liquid level above the rotary disk gradually increases, and the air is discharged through the exhaust float valve until the liquid level reaches the threshold and the exhaust float valve is closed. At this time, the pressure continues to increase rapidly. As the pressure increases, the first piston moves up and rotates the rotary disk slightly. The aperture permeability of the staggered later stage of the rotary disk and the fixed disk increases, maintaining the pressure difference between the upper and lower parts. At the same time, the solution that passes through passes through the fixed disk and disperses and falls, and is fully in contact with the circulating nitrogen in a reduced pressure environment, realizing efficient recovery of additives. This method, through the delivery rate of the pump body, combined with the change in the permeability of the solution by the pressure control component, efficiently forms a pressure difference of circulating flow, and forms a dripping rain curtain that can be fully in contact with nitrogen. Combined with low-speed stirring and heating, the overall additive recovery speed is greatly accelerated; In the above-mentioned additive recovery process, as the pressure in the transfer bin increases, the push rod in the pressure fluctuation chamber slides out due to the pressure and contacts the cam fixed on the stirring shaft, so that its second piston reciprocates under the action of the cam and the push rod, and directly acts on the fluctuating pressure in the transfer bin through the three-way pipe. Since the stirring shaft rotates at a low speed during additive recovery, the pressure change amplitude meets the use needs. The pressure in the transfer bin changes back and forth within a range, causing the turntable to rotate back and forth slightly, and the solution passing through it fluctuates intermittently, forming a dripping state, thereby enhancing sufficient contact with nitrogen.

[0015] This method disperses the solution through dynamic pressure control, achieving a significant improvement in additive recovery efficiency: the flow of the solution is accurately controlled by utilizing pump power switching and changes in the aperture of the rotating disk and fixed disk to form an efficient circulation system driven by pressure difference; the intermittent liquid flow induced by rain curtain-like dripping and pressure fluctuations in a nitrogen environment is combined to greatly enhance the gas-liquid contact area; at the same time, the pressure can be adaptively adjusted to complete rapid and uniform additive recovery, with the outstanding advantage of doubling the recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional cross-sectional schematic diagram of the present invention; Figure 3 It is a cross-sectional schematic diagram of the present invention; Figure 4 It is an enlarged schematic diagram of A of the present invention; Figure 5It is a three-dimensional cross-sectional schematic diagram of the transfer warehouse of the present invention; Figure 6 It is an exploded schematic diagram of the pressure control assembly of the present invention; Figure 7 It is a schematic diagram of the initial interlaced state of the rotating disk and the fixed disk in a top view of the present invention; Figure 8 It is a schematic diagram of the solution flow in the additive recovery state of the present invention.

[0017] Legend: 10. Tank; 11. Silo; 12. Temperature control bin; 13. Discharge port; 14. Transfer bin; 20. Stirring assembly; 21. Shaft seat; 22. Motor seat; 23. Stirring shaft; 24. Driver; 30. Circulation assembly; 31. Pump body; 32. Tee pipe; 33. Pressure fluctuation chamber; 331. Pressure chamber; 332. Second piston; 333. Spring; 334. Push rod; 335. Cam; 34. Pressure gauge; 40. Pressure control assembly; 41. Vertical sleeve; 42. Rotary disk; 43. Oblique guide groove; 44. Sliding block; 45. Fixed disk; 46. First piston; 47. Sealing chamber; 48. Magnetic block; 50. Exhaust float valve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 - Figure 8 As shown, the present invention provides: a reactor for processing propamocarb hydrochloride, comprising a tank body 10 and a stirring assembly 20 installed thereon, specifically, as Figure 1 and Figure 3 As shown, the tank body 10 includes a silo 11 and a temperature control silo 12 sealed and attached thereto, and a discharge port 13 opened at the bottom of the silo 11, and a transfer silo 14 is sealed and installed on the top of the silo 11. By setting the temperature control silo 12, which is attached to the outer wall of the silo 11, the temperature of the internal solution can be controlled when the heat exchange medium flows therein, and the fixed plate 45 is attached to the top of the silo 11, and the rotating plate 42 is attached to the upper surface of the fixed plate 45 and clamped between the silo 11 and the transfer silo 14, so that the rotating plate 42 can rotate and slide.

[0020] Specifically, Figure 3As shown, the stirring assembly 20 includes a shaft seat 21 sealed and installed on the top of the transfer bin 14, and a motor seat 22 fixed on the top of the shaft seat 21, and a driver 24 is installed on the top of the motor seat 22, and the output end of the driver 24 is equipped with a stirring shaft 23 through a coupling transmission, and the stirring shaft 23 is rotatably installed in the shaft seat 21 and the motor seat 22.

[0021] By setting the shaft seat 21, the shaft seat 21 is fixed on the transfer bin 14, which can meet the rotation support needs of the stirring shaft 23. At the same time, the driver 24 can be installed through the motor seat 22. The driver 24 can drive the stirring shaft 23 to rotate at high speed through the coupling to shear and stir the solution.

[0022] One side of the tank 10 is connected to a circulation component 30, specifically, Figure 3 As shown, the circulation component 30 also includes a three-way pipe 32 connected to the liquid outlet of the pump body 31, and the two ends of the three-way pipe 32 are respectively connected to the transfer bin 14 and the pressure fluctuation chamber 33, the liquid inlet of the pump body 31 is connected to the discharge port 13, and a pressure gauge 34 is installed on one side of the three-way pipe 32.

[0023] By setting up the pump body 31, the pump body 31 can extract the solution in the silo 11 and input it into the transfer bin 14 through the three-way pipe 32. In this process, based on the blocking of the top of the three-way pipe 32 by the second piston 332, the solution will not enter, including the residual air at the top of the three-way pipe 32 entering when the second piston 332 slides later. No solution will flow in to cause corrosion of the second piston 332. At the same time, the pressure gauge 34 is located on the three-way pipe 32, and can detect the pressure data in the three-way pipe 32 and the transfer bin 14.

[0024] A pressure control assembly 40 is installed in the tank body 10, and a circulation assembly 30 includes a pump body 31 for circulating the solution in the tank body 10 and a pressure fluctuation chamber 33 connected to the top thereof. Specifically, Figure 4 As shown, the pressure fluctuation chamber 33 includes a pressure chamber 331 connected to one end of the three-way pipe 32 and a second piston 332 sliding therein, and the second piston 332 and the inner wall of the pressure chamber 331 are jointly equipped with a spring 333, and a push rod 334 sliding through one side of the pressure chamber 331 is fixed to one side of the second piston 332, and a cam 335 is arranged at the axial position of the push rod 334, the cam 335 is fixed on the stirring shaft 23, a pulley is arranged at the end of the push rod 334, and the pressure chamber 331 is fixed to the top of the transfer bin 14.

[0025] By setting the pressure fluctuation, when the pressure increases, the second piston 332 can compress the spring 333 and slide out with the push rod 334 until the pressure threshold in the transfer bin 14 is reached, and the pulley at the top of the push rod 334 moves to the motion interference area of ​​the cam 335. During ordinary stirring operation, the pressure is reduced, the spring 333 resets the second piston 332, and the cam 335 has no motion interference, which meets the use requirements of high-speed rotation of the stirring shaft 23. Figure 4 and Figure 5 It can be seen that a counterweight block is provided below the cam 335 to meet the stability requirements under high-speed rotation.

[0026] The pressure control assembly 40 includes a fixed plate 45 and a rotating plate 42 that fit each other, and a vertical sleeve 41 that controls the rotating plate 42 and the fixed plate 45 to intersect when vertically displaced, and a first piston 46 is disposed on the top of the vertical sleeve 41; Specifically, Figure 5 and Figure 6 As shown, the pressure control assembly 40 also includes a sealing chamber 47 fixed in the transfer chamber 14, the first piston 46 fits and slides in the sealing chamber 47, and two groups of magnetic blocks 48 with the same relative magnetic pole directions are symmetrically arranged on the top of the first piston 46 and the sealing chamber 47. By setting the sealing chamber 47, the first piston 46 can slide with it, and the first piston 46 can be supported to slide. At the same time, the magnetic pole directions of the two groups of magnetic blocks 48 are the same, so that there is a repulsive force on their opposite surfaces, and they can provide a reverse support when moving towards each other.

[0027] Specifically, Figure 6 As shown, the side wall at the bottom end of the vertical sleeve 41 is provided with a plurality of inclined guide grooves 43, and the inner wall of the turntable 42 is provided with a plurality of sliders 44 that slide in cooperation with the inclined guide grooves 43. The turntable 42 is rotatably installed between the transfer bin 14 and the silo 11, and the fixed plate 45 is pressed against the inner wall of the silo 11, and the vertical sleeve 41 slides against the shaft seat 21.

[0028] By adopting a vertical sleeve 41, which slides on the shaft seat 21, it can guide the sliding of the slider 44 through the inclined guide groove 43 of its arc-shaped side wall during a small lifting and sliding in the vertical direction. The slider 44 slides in the inclined guide groove 43 and displaces horizontally at the same time, causing it to rotate with the turntable 42.

[0029] When the solution circulates, the rotating disk 42 and the fixed disk 45 limit the solution reflux amount and separate the tank body 10 to form a high-pressure space at the top and a low-pressure space at the bottom. The stirring assembly 20 drives the pressure fluctuation chamber 33 to interfere with the fluctuation of the high-pressure space at the top. The solution reflux amount changes intermittently with the pressure fluctuation, enters the low-pressure environment to form intermittent liquid falling and reduced-pressure distillation.

[0030] Specifically, Figure 2As shown, an exhaust float valve 50 for controlling the liquid level inside the transfer bin 14 is installed on the top of the transfer bin 14, and a plurality of feed ports are provided on the top of the transfer bin 14. By providing the exhaust float valve 50, the air inside the transfer bin 14 can be discharged, so that the transfer bin 14 can be connected to the air of the external environment, and when the flow rate increases, the permeability of the rotary disk 42 cannot quickly pass the solution, so that the liquid level gradually increases. After the liquid level reaches a predetermined height, the exhaust float valve 50 is closed. In this process, the internal pressure gradually increases. In the process of increasing pressure, the rotary disk 42 rotates to increase the flow rate. At the same time, its flow rate will also be accelerated synchronously under the action of pressure, which accelerates the permeability to a certain extent.

[0031] Specifically, Figure 3 and Figure 5 As shown, a through hole is provided on the top of the transfer bin 14 to facilitate gas displacement above the first piston 46. The sealing chamber 47 on the surface of the first piston 46 is fixed to the top of the transfer bin 14, and the through hole provided on the transfer bin 14 is connected to the sealing chamber 47. When the first piston 46 slides, the air in the space between the two sets of magnetic blocks 48 above it can be discharged through the through hole.

[0032] During stirring, the solution is added through the feed port on the transfer bin 14, so that the solution gradually flows into the silo 11, and then the driver 24 rotates with the stirring shaft 23 in the shaft seat 21 under the support of the motor seat 22, and stirs and mixes the solution in the silo 11. In this process, the temperature control medium is introduced through the temperature control bin 12 to control the temperature, and when necessary, the pump body 31 extracts the solution through the discharge port 13 at the bottom of the silo 11 and pumps the solution into the transfer bin 14. The solution enters the transfer bin 14 and passes through the gap between the rotating disk 42 and the fixed disk 45 under the action of gravity, and the liquid level does not contact the exhaust float valve 50, so that the whole presents high-speed stirring in a heated state, and the pressure does not change; When the additive is recovered, the driver 24 controls the stirring shaft 23 to rotate at a low speed, and at the same time, nitrogen is circulated into the silo 11. After the nitrogen is discharged, the additive carried is dried and recovered, and then flows back into the silo 11 after heating. The solution in the stirring state is heated at the same time. At this time, the heating temperature does not reach the evaporation temperature of the additive. By starting the pump body 31, the pump body 31 quickly extracts the solution in the silo 11 and flows into the transfer silo 14 through the three-way pipe 32 (based on the top of the three-way pipe 32 being relatively sealed and without exhaust, the solution can only directly enter the transfer silo 14). After the solution quickly enters the transfer silo 14, the air in the transfer silo 14 is discharged through the exhaust float valve 50, and part of the solution flows back to the silo 11 through the rotary disk 42 and the fixed disk 45. As the liquid level in the transfer silo 14 gradually increases, the air in it is discharged. When the liquid level reaches a certain height, the exhaust float valve 50 is closed for exhaust. At this time, the transfer silo 14 is in a closed state, so that the internal pressure gradually increases, and the residual air in it is compressed when the pressure increases; The pressure in the transfer bin 14 increases. As the pressure gradually increases, the pressure first acts on the first piston 46 sliding in the sealing chamber 47, compressing the gap between the two groups of magnets 48 with the same magnetic pole direction on the two opposite surfaces, and moving the vertical sleeve 41 upward. The two groups of magnets 48 provide an elastic repulsive force. As the internal pressure increases, the compression amplitude increases (based on the spacing between the two groups of magnets, the actual upward movement distance of the vertical sleeve 41 is smaller). When the vertical sleeve 41 moves upward as the pressure increases, the slider 44 sliding therein is guided to slide through the multiple inclined guide grooves 43 opened on its arc-shaped side wall. When the slider 44 is guided to slide, its turntable 42 begins to rotate slightly, so that the turntable 42 and the fixed plate 45 begin to misalign, and the opening increases, and the solution passability increases. This method can maintain the solution circulation after the pump body 31 is started, and form a constant upper and lower pressure difference. When the pressure difference is exceeded, the opening increases and the passability increases synchronously, maintaining the pressure difference between the upper and lower spaces and the optimal low-pressure distillation environment, and can control the flow rate as needed after the pressure is constant, but the pressure will not be affected; When the pressure is low, the second piston 332 has no displacement. When the pressure gradually increases, the second piston 332 and the first piston 46 are synchronously subjected to pressure and slide in the pressure chamber 331. As the second piston 332 moves, until the pressure inside it reaches a constant threshold, the second piston 332 compresses the spring 333 and slides out with the push rod 334 until the pulley of the push rod 334 contacts the cam 335. The cam 335 rotates with the stirring shaft 23. The stirring shaft 23 is in a low speed state in the additive recovery mode. The cam 335 reversely squeezes the push rod 334 and the second piston 332. The second piston 332 is reset to a certain distance, and the pressure in the transfer bin 14 is instantly increased through the three-way pipe 32. When the cam 335 rotates to the far end, the spring 333 is again compressed by the second piston 33 2 compression, wherein the pressure in the transfer bin 14 returns to the threshold value. This method realizes that after the pressure threshold value is reached in the transfer bin 14, the liquid level in the transfer bin 14 fluctuates back and forth within a certain amplitude, so that the pressure changes back and forth at a certain frequency. The pressure that changes back and forth at the pressure threshold value causes the throughput of the rotating disk 42 and the fixed disk 45 to increase slightly based on the solution throughput at the pressure threshold state, and then resets to form an intermittent water line (based on the large number, a rain curtain effect is formed) and contact with nitrogen in the rain curtain under the top plate, so that it is fully contacted with nitrogen in the heated state and carried out, and then mixed with the solution in the silo 11, and continuously circulated. Compared with the traditional additive vacuum distillation recovery method of direct low-speed stirring and synchronous heating, this method has greatly improved efficiency.

[0033] The above additives are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reactor for processing propamocarb hydrochloride, comprising a tank body (10) and a stirring assembly (20) installed therethrough, and a circulation assembly (30) connected to one side of the tank body (10), and also comprising a pressure control assembly (40) installed in the tank body (10), characterized in that: The circulation assembly (30) comprises a pump body (31) for circulating the solution in the tank body (10) and a pressure fluctuation chamber (33) connected to the top of the pump body, and the pressure control assembly (40) comprises a fixed plate (45) and a rotating plate (42) that fit together, and a vertical sleeve (41) that controls the rotating plate (42) and the fixed plate (45) to intersect when vertically displaced, and a first piston (46) is disposed on the top of the vertical sleeve (41); The circulation assembly (30) further comprises a three-way pipe (32) connected to the liquid outlet of the pump body (31); The pressure fluctuation chamber (33) comprises a pressure chamber (331) connected to one end of the three-way pipe (32) and a second piston (332) sliding therein, and the second piston (332) and the inner wall of the pressure chamber (331) are both provided with a spring (333), a push rod (334) slidingly penetrating through one side of the pressure chamber (331) is fixed to one side of the second piston (332), and a cam (335) is provided at the axial position of the push rod (334); When the solution circulates, the rotating disk (42) and the fixed disk (45) limit the reflux flow and separate the tank body (10) to form a high-pressure space at the top and a low-pressure space at the bottom. The stirring assembly (20) drives the pressure fluctuation chamber (33) to interfere with the fluctuation of the high-pressure space at the top. The reflux flow of the solution changes intermittently with the pressure fluctuation, enters the low-pressure environment, forms intermittent liquid falling and performs reduced-pressure distillation.

2. A reaction kettle for processing propamocarb hydrochloride according to claim 1, characterized in that: The tank body (10) comprises a material bin (11) and a temperature control bin (12) sealed and attached thereto, and a material outlet (13) opened at the bottom of the material bin (11); a transfer bin (14) is sealed and installed at the top of the material bin (11).

3. A reaction kettle for processing propamocarb hydrochloride according to claim 2, characterized in that: The stirring assembly (20) comprises a shaft seat (21) which is sealed and installed through the top of the transfer bin (14), and a motor seat (22) which is fixed on the top of the shaft seat (21), and a driver (24) is installed on the top of the motor seat (22), and the output end of the driver (24) is matched with a stirring shaft (23) through a coupling transmission, and the stirring shaft (23) is installed in a rotational manner through the shaft seat (21) and the motor seat (22).

4. A reactor for processing propamocarb hydrochloride according to claim 3, characterized in that: The two ends of the three-way pipe (32) are respectively connected to the transfer bin (14) and the pressure fluctuation chamber (33); the liquid inlet of the pump body (31) is connected to the discharge port (13); and a pressure gauge (34) is installed on one side of the three-way pipe (32).

5. A reaction kettle for processing propamocarb hydrochloride according to claim 4, characterized in that: The cam (335) is fixed on the stirring shaft (23), a pulley is provided at the end of the push rod (334), and the pressure chamber (331) is fixed on the top of the transfer bin (14).

6. The reactor for processing propamocarb hydrochloride according to claim 3, characterized in that: The pressure control assembly (40) further comprises a sealing chamber (47) fixed in the transfer chamber (14), the first piston (46) slidingly fits in the sealing chamber (47), and two groups of magnetic blocks (48) with the same relative magnetic pole directions are symmetrically arranged on the top of the first piston (46) and the sealing chamber (47).

7. A reaction kettle for processing propamocarb hydrochloride according to claim 6, characterized in that: The side wall at the bottom end of the vertical sleeve (41) is provided with a plurality of inclined guide grooves (43), and the inner wall of the rotary disk (42) is provided with a plurality of sliding blocks (44) that slide in cooperation with the inclined guide grooves (43). The rotary disk (42) is rotatably installed between the transfer bin (14) and the material bin (11), and the fixed disk (45) is pressed against the inner wall of the material bin (11), and the vertical sleeve (41) slides against the shaft seat (21).

8. The reactor for processing propamocarb hydrochloride according to claim 2, characterized in that: An exhaust float valve (50) for controlling the liquid level inside the transfer bin (14) is installed on the top of the transfer bin (14), and a plurality of feed ports are arranged on the top of the transfer bin (14).

9. The reactor for processing propamocarb hydrochloride according to claim 6, characterized in that: A through hole is provided on the top of the transfer chamber (14) to cooperate with the gas displacement above the first piston (46).

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