An energy-saving quality improvement device for acetamiprid production

Abstract

This utility model relates to the technical field of quality improvement devices, and in particular to an energy-saving quality improvement device for acetamiprid production. It includes a base, a column at the upper end of the base, a reaction vessel fixedly mounted at the upper end of the column, a discharge funnel fixedly mounted at the upper end of the reaction vessel, a raw material tank fixedly mounted at the upper end of the discharge funnel, a feed hopper fixedly mounted at the upper end of the raw material tank, and a screen fixedly mounted at the upper end of the discharge funnel. A rotating shaft is located at the upper end of the screen. In the raw material pretreatment stage, the rotating shaft rotates, causing the spiral blade to efficiently break up agglomerated raw materials, refining large particles into uniform particle sizes. Simultaneously, the screen at the upper end of the discharge funnel intercepts unbroken large particles and mixed impurities, ensuring that the raw materials entering the reaction vessel have consistent particle size and higher purity. At the same time, the rotating shaft drives a scraper to rotate close to the inner wall of the raw material tank via a connecting rod, cleaning residual raw materials from the tank wall in real time.

Description

Technical Field

[0001] This utility model relates to the technical field of quality improvement devices, and in particular to an energy-saving quality improvement device for acetamiprid production. Background Technology

[0002] Acetamiprid, as a highly effective and low-toxicity chloronicotinic insecticide, has product quality, including chemical purity, crystal morphology uniformity, and storage stability, which directly affects the actual efficacy and safety of pesticide formulations. Energy consumption in the production process has become a key consideration for the industry in practicing green development. At present, although the industry has gradually introduced technologies such as raw material pretreatment and waste gas recycling to improve product quality and energy efficiency, there is still room for optimization in aspects such as continuous and precise control of raw material crushing and screening, precise and coordinated control of temperature difference between reflux materials and reaction system, and tiered coupling of thermal energy in reaction process and energy consumption of condensation system.

[0003] Traditional acetamiprid production equipment lacks integrated structures for raw material screening and crushing, as well as energy-saving devices. Raw materials often enter the reactor directly in their original state, and the reflux low-temperature liquid raw materials come into direct contact with the high-temperature liquid raw materials, which may produce other unwanted products.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN219232371U that discloses a high-efficiency acetamiprid production reactor. The patent proposes "setting a floating box structure within the reactor, connecting the return liquid pipe to the floating box via a corrugated pipe, and installing a U-shaped preheating pipe within the floating box. This allows the refluxed low-temperature liquid raw material to pass through the preheating pipe before contacting the high-temperature raw material within the reactor, effectively preventing direct contact between the low-temperature and high-temperature raw materials and the potential generation of unwanted products, thus making the reaction within the reactor more stable." However, connecting the return liquid pipe via a corrugated pipe may cause slight shaking due to stirring or level fluctuations within the tank, leading to unstable immersion depth of the U-shaped preheating pipe and affecting preheating efficiency.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide an energy-saving quality improvement device for acetamiprid production, in order to solve the problems mentioned in the background art, such as the lack of integrated structure and energy-saving device for raw material screening and crushing in traditional acetamiprid production devices, the raw materials often entering the reactor directly in their original state, and the direct contact between the reflux low-temperature liquid raw materials and the high-temperature liquid raw materials, which may produce other unwanted products.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving quality improvement device for acetamiprid production, comprising a base, a column at the upper end of the base, a reaction vessel fixedly mounted at the upper end of the column, a discharge funnel fixedly mounted at the upper end of the reaction vessel, a raw material tank fixedly mounted at the upper end of the discharge funnel, a feed hopper fixedly mounted at the upper end of the raw material tank, a screen fixedly mounted at the upper end of the discharge funnel, a rotating shaft at the upper end of the screen, a spiral blade sleeved on the outer ring of the rotating shaft, a protective shell fixedly mounted inside the raw material tank, and a bidirectional motor mounted inside the protective shell. A flywheel is installed at the lower end of the motor, and a flywheel shaft is fixedly installed at the lower end of the flywheel. A connecting rod is fixedly installed at the left end of the rotating shaft, and a scraper is fixedly installed at the left end of the connecting rod. A condenser is fixedly installed at the upper end of the reactor, and an outlet pipe is fixedly installed at the right end of the reactor. A filter chamber is fixedly installed at the upper end of the reactor, and a connecting pipe is fixedly installed at the upper end of the filter chamber. A condenser chamber is fixedly installed at the lower end of the connecting pipe, and a bellows is fixedly installed at the lower end of the condenser chamber. A float box is fitted around the outer ring of the bellows, and a preheating pipe is fixedly installed at the lower end of the bellows. A guide rail is fixedly installed at the lower end of the reactor.

[0008] Preferably, a bevel gear is fixedly installed at the right end of the flywheel shaft, and a bevel gear is sleeved on the outer ring of the rotating shaft.

[0009] Preferably, the scraper is in close contact with the raw material tank, and the scraper is connected to the rotating shaft via a connecting rod.

[0010] Preferably, a refrigeration box is provided on one side of the top of the reactor. The refrigeration box is connected to the condensation chamber inside the condensation box through multiple coolant connecting pipes. An air inlet pipe is fixedly installed on the left end of the condensation chamber.

[0011] Preferably, the preheating pipe has a U-shaped structure, with the bent end of the preheating pipe immersed in the raw material in the reactor, and the outlet of the preheating pipe being higher than the liquid level of the raw material in the reactor.

[0012] Preferably, the middle part of the float box is provided as a cavity, and the rear end of the float box is provided with a slider that cooperates with the guide rail.

[0013] Preferably, the upper end of the rotating shaft is connected to the drive motor via a flange.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This energy-saving quality improvement device for acetamiprid production, in the raw material pretreatment stage, rotates the rotating shaft, causing the spiral blade to efficiently break up agglomerated raw materials, refining large particles into uniform particle sizes. Simultaneously, the screen at the top of the discharge funnel intercepts unbroken large particles and mixed impurities, ensuring that the raw materials entering the reactor have consistent particle size and higher purity. At the same time, the rotating shaft drives the scraper to closely adhere to the inner wall of the raw material tank through the connecting rod, cleaning the residual raw materials on the tank wall in real time, avoiding feed interruptions caused by accumulation, and achieving a continuous and stable supply of raw materials. This eliminates the problem of incomplete reaction caused by uneven particle size and impurities when traditional raw materials directly enter the reactor from the source. The first bevel gear drives the second bevel gear, which drives the flywheel to rotate in the vacuum chamber through the flywheel shaft. At this time, the bidirectional electric... The machine operates as a generator, converting the mechanical energy of the flywheel's rotation into electrical energy for storage. During the return stroke, the bidirectional motor switches to electric motor mode, releasing the stored electrical energy to drive the flywheel to rotate in the opposite direction. This, in turn, drives the second bevel gear to push the first bevel gear back through the flywheel shaft. To address the issue of direct contact between the reflux cryogenic liquid and the high-temperature raw materials, the waste gas generated by the reaction enters the condensation chamber through the inlet pipe. The coolant transported by the refrigeration box enables the liquefaction and recovery of the vaporized raw materials. The liquefied cryogenic raw materials flow into the U-shaped preheating pipe through the corrugated pipe. The float box is stably raised and lowered along the guide rail at the bottom of the reactor by the rear slider, ensuring that the U-shaped bend of the preheating pipe is always immersed in the high-temperature raw materials in the reactor. This allows the cryogenic reflux liquid to fully absorb heat in the preheating pipe, and as the temperature gradually approaches that of the reaction system, it slowly overflows from the outlet, completely avoiding local temperature differences and side reactions caused by direct contact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the interaction between the rotating shaft and the spiral cutter of this utility model;

[0017] Figure 3 This is a schematic diagram of the interaction between the flywheel and the flywheel shaft of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the preheating pipe and the floating box of this utility model.

[0019] In the diagram: 1. Base; 2. Column; 3. Reactor; 4. Discharge hopper; 5. Raw material tank; 6. Feed hopper; 7. Screen; 8. Rotating shaft; 9. Spiral cutter; 10. Protective shell; 11. Bidirectional motor; 12. Flywheel; 13. Flywheel shaft; 14. Connecting rod; 15. Scraper; 16. Condensation box; 17. Gas outlet pipe; 18. Filter chamber; 19. Connecting pipe; 20. Condensation chamber; 21. Corrugated pipe; 22. Float box; 23. Preheating pipe; 24. Guide rail; 25. Gas inlet pipe; 26. Drive motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: an energy-saving quality improvement device for acetamiprid production, comprising a base 1, a column 2 at the upper end of the base 1, a reaction vessel 3 fixedly installed at the upper end of the column 2, a discharge funnel 4 fixedly installed at the upper end of the reaction vessel 3, a raw material tank 5 fixedly installed at the upper end of the discharge funnel 4, a feed hopper 6 fixedly installed at the upper end of the raw material tank 5, a screen 7 fixedly installed at the upper end of the discharge funnel 4, a rotating shaft 8 at the upper end of the screen 7, a spiral blade 9 sleeved on the outer ring of the rotating shaft 8, a protective shell 10 fixedly installed inside the raw material tank 5, a bidirectional motor 11 installed inside the protective shell 10, and a flywheel 12 installed at the lower end of the bidirectional motor 11. A flywheel shaft 13 is fixedly installed at the lower end of the flywheel 12. A connecting rod 14 is fixedly installed at the left end of the rotating shaft 8. A scraper 15 is fixedly installed at the left end of the connecting rod 14. A condenser box 16 is fixedly installed at the upper end of the reactor 3. An outlet pipe 17 is fixedly installed at the right end of the reactor 3. A filter chamber 18 is fixedly installed at the upper end of the reactor 3. A connecting pipe 19 is fixedly installed at the upper end of the filter chamber 18. A condenser chamber 20 is fixedly installed at the lower end of the connecting pipe 19. A corrugated pipe 21 is fixedly installed at the lower end of the condenser chamber 20. A float box 22 is fitted around the outer ring of the corrugated pipe 21. A preheating pipe 23 is fixedly installed at the lower end of the corrugated pipe 21. A guide rail 24 is fixedly installed at the lower end of the reactor 3.

[0022] Furthermore, a bevel gear is fixedly installed on the right end of the flywheel shaft 13, and a bevel gear is fitted on the outer ring of the rotating shaft 8. Through the setting of the flywheel shaft 13, in conjunction with the power generation and electric mode switching of the bidirectional motor 11, the mutual conversion of the rotational mechanical energy and electrical energy of the flywheel 12 is realized. The model of the bidirectional motor 11 is: 110ST-M04030.

[0023] Furthermore, the scraper 15 is tightly fitted to the raw material tank 5, and the scraper 15 is connected to the rotating shaft 8 through the connecting rod 14. Through the setting of the scraper 15, it rotates synchronously with the rotating shaft 8 and is tightly attached to the inner wall of the raw material tank 5, cleaning the residual raw materials on the tank wall in real time.

[0024] Furthermore, a refrigeration box is provided on one side of the top of the reactor 3. The refrigeration box is connected to the condensation chamber 20 in the condensation box 16 through multiple coolant connecting pipes. An air inlet pipe 25 is fixedly installed on the left end of the condensation chamber 20. Through the setting of the air inlet pipe 25, the waste gas containing gasified raw materials generated in the reactor 3 can be directed into the condensation chamber 20.

[0025] Furthermore, the preheating tube 23 has a U-shaped structure. The bent end of the preheating tube 23 is immersed in the raw material in the reactor 3, and the outlet of the preheating tube 23 is higher than the liquid level of the raw material in the reactor 3. By setting the preheating tube 23, its bent end is immersed in the high-temperature raw material in the reactor 3, and the outlet is higher than the liquid level, so that the condensed low-temperature reflux liquid can fully absorb the residual heat of the reaction in the tube, and then overflow after being heated to near the temperature of the reaction system.

[0026] Furthermore, the middle part of the float box 22 is set as a cavity, and the rear end of the float box 22 is provided with a slider that cooperates with the guide rail 24. Through the setting of the guide rail 24, in cooperation with the slider at the rear end of the float box 22, the float box 22 is provided with guidance and limit for rising and falling with the liquid level, ensuring that the float box 22 moves stably, thereby ensuring that the preheating pipe 23 is always in the optimal heat exchange position.

[0027] Furthermore, the upper end of the rotating shaft 8 is connected to the drive motor 26 via a flange. The drive motor 26 provides stable power to the rotating shaft 8, driving it to rotate and drive the spiral cutter 9 to crush the raw materials.

[0028] Working Principle: Raw materials enter the raw material tank 5 through the feed hopper 6. The drive motor 26 drives the rotating shaft 8 to rotate via the flange. The spiral blades 9 on the outer ring of the rotating shaft 8 rotate synchronously, breaking up agglomerated raw materials and refining their particle size. The crushed raw materials fall onto the screen 7 at the top of the discharge funnel 4. The screen 7 intercepts large particles and uncrushed raw materials, ensuring that qualified raw materials pass through the discharge funnel 4 into the reaction vessel 3. At the same time, the rotating shaft 8 drives the scraper 15 to adhere to the inner wall of the raw material tank 5 via the connecting rod 14, cleaning residual raw materials on the tank wall in real time and ensuring continuous and stable feeding. The bevel gear at the right end of the flywheel shaft 13 meshes with the bevel gear on the outer ring of the rotating shaft 8. When the device load is low, the bidirectional motor 11 drives the flywheel 12 to rotate in the vacuum chamber, converting electrical energy into mechanical energy for storage. During peak load, the bidirectional motor 11 switches to generator mode, and the flywheel 12 releases energy. The flywheel shaft 13 drives the rotating shaft 8 through bevel gear transmission to achieve energy recovery and reuse. The raw materials react in the reactor 3, and the generated waste gas enters the condensation chamber 20 through the outlet pipe 17 and the inlet pipe 25. The refrigeration box at the top of the reactor 3 delivers coolant to the condensation chamber 20 through the coolant connection pipe, so that the vaporized raw materials in the waste gas are liquefied. The liquefied low-temperature raw materials flow into the U-shaped preheating pipe 23 through the corrugated pipe 21. The float box 22 rises and falls with the liquid level along the guide rail 24 through the rear slider to ensure that the bent end of the preheating pipe 23 is always immersed in the high-temperature raw materials in the reactor 3. The waste heat of the reaction is used to fully preheat the low-temperature raw materials. The preheated raw materials slowly overflow from the outlet of the preheating pipe 23 to avoid direct contact with the high-temperature raw materials and cause side reactions. The unliquefied waste gas enters the filter chamber 18 through the connection pipe 19, is filtered and purified, and then discharged to complete the entire production process.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving quality upgrading device for acetamiprid production, comprising a base (1), characterized in that: A column (2) is provided at the upper end of the base (1). A reaction vessel (3) is fixedly installed at the upper end of the column (2). A discharge funnel (4) is fixedly installed at the upper end of the reaction vessel (3). A raw material tank (5) is fixedly installed at the upper end of the discharge funnel (4). A feed hopper (6) is fixedly installed at the upper end of the raw material tank (5). A screen (7) is fixedly installed at the upper end of the discharge funnel (4). A rotating shaft (8) is provided at the upper end of the screen (7). A spiral blade (9) is sleeved on the outer ring of the rotating shaft (8). A protective shell (10) is fixedly installed on the inner side of the raw material tank (5). A bidirectional motor (11) is provided on the inner side of the protective shell (10). A flywheel (12) is provided at the lower end of the bidirectional motor (11). A flywheel shaft (1) is fixedly installed at the lower end of the flywheel (12). 3) A connecting rod (14) is fixedly installed on the left end of the rotating shaft (8), a scraper (15) is fixedly installed on the left end of the connecting rod (14), a condenser (16) is fixedly installed on the upper end of the reactor (3), an outlet pipe (17) is fixedly installed on the right end of the reactor (3), a filter chamber (18) is fixedly installed on the upper end of the reactor (3), a connecting pipe (19) is fixedly installed on the upper end of the filter chamber (18), a condenser (20) is fixedly installed on the lower end of the connecting pipe (19), a corrugated pipe (21) is fixedly installed on the lower end of the condenser (20), a float box (22) is fitted around the outer ring of the corrugated pipe (21), a preheating pipe (23) is fixedly installed on the lower end of the corrugated pipe (21), and a guide rail (24) is fixedly installed on the lower end of the reactor (3).

2. The energy-saving quality improving device for acetamiprid production according to claim 1, characterized in that: A bevel gear is fixedly installed at the right end of the flywheel shaft (13), and a bevel gear is sleeved on the outer ring of the rotating shaft (8).

3. The energy-saving quality improving device for acetamiprid production according to claim 1, characterized in that: The scraper (15) is in close contact with the raw material tank (5), and the scraper (15) is connected to the rotating shaft (8) through the connecting rod (14).

4. The energy-saving quality improving device for acetamiprid production according to claim 1, characterized in that: A refrigeration box is provided on one side of the top of the reactor (3). The refrigeration box is connected to the condensation chamber (20) inside the condensation box (16) through multiple coolant connecting pipes. An air inlet pipe (25) is fixedly installed on the left end of the condensation chamber (20).

5. The energy-saving quality improving device for acetamiprid production according to claim 1, characterized in that: The preheating tube (23) has a U-shaped structure. The bent end of the preheating tube (23) is immersed in the raw material in the reactor (3), and the outlet of the preheating tube (23) is higher than the liquid level of the raw material in the reactor (3).

6. The energy-saving quality improving device for acetamiprid production according to claim 1, characterized in that: The middle part of the float box (22) is set as a cavity, and the rear end of the float box (22) is provided with a slider that cooperates with the guide rail (24).

7. The energy-saving quality improving device for acetamiprid production according to claim 1, characterized in that: The upper end of the rotating shaft (8) is connected to the drive motor (26) via a flange.

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