Dizotization kettle for producing ethyl chrysanthemate

Abstract

The diazotization kettle comprises a kettle body and a kettle cover, two mounting pipes are fixedly mounted at the top of the kettle body, limiting mechanisms are arranged in the two mounting pipes, sliding grooves are formed in the tops of the two mounting pipes, clamping mechanisms are arranged in the two sliding grooves, and the clamping mechanisms are arranged in the two sliding grooves. Two second communication grooves, cavities and mounting grooves are formed in the kettle body, compression mechanisms are arranged in the two cavities, sealing mechanisms are arranged in the two mounting grooves, and extrusion mechanisms are arranged in the two second communication grooves. The kettle cover sealing device is reasonable in structural design, and through the arrangement of the sealing mechanism and the limiting mechanism, when a worker closes the kettle cover of the kettle body, the piston is driven to move through extrusion of the side wall of the kettle cover, so that the heat-resistant air bag is expanded, and a gap between the heat-resistant air bag and the kettle cover is filled and sealed; the kettle cover can be limited through the clamped limiting blocks, so that the kettle cover is prevented from shaking and falling off in high-strength reaction.

Description

Technical Field

[0001] The utility model relates to the field of chrysanthemic acid ethyl ester production, in particular to a diazotization kettle used for chrysanthemic acid ethyl ester production. Background Art

[0002] Ethyl propanecarboxylate, also known as chrysanthemic acid ethyl ester, is a key intermediate in the biomimetic insecticide pyrethroids, developed based on research into the chemical structure of natural pyrethrins. It can be used to synthesize pyrethroids such as allethrin, halopermethrin, resmethrin, tetramethrin, methothrin, fenvalerate, cypermethrin, and other pyrethroids for sanitary use. Pyrethroid pesticides are a new generation of highly effective, low-toxic, and low-residue pesticides. The research and production of pyrethroid pesticides in my country is still in its infancy, and demand for chrysanthemic acid ethyl ester is increasing annually. The production of chrysanthemic acid ethyl ester requires a reactor.

[0003] In the prior art, during the process of using a diazotization kettle for the production of ethyl chrysanthemate, a slight gap exists between the kettle body and the kettle lid when the kettle lid is closed, which can easily cause the raw materials in the kettle to overflow. In addition, during the use of the kettle, the violent reaction of the raw materials in the kettle can easily cause the kettle lid to shake or even fall off due to vibration, causing serious safety hazards. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art of a gap between the lid and the body of a diazotization kettle for ethyl chrysanthemate production and the problem that the lid is prone to shaking and falling off during processing. The diazotization kettle for ethyl chrysanthemate production proposed by the utility model has a sealing mechanism and a limiting mechanism. When the staff closes the lid of the kettle body, the piston is displaced by squeezing the side wall of the lid, so that the heat-resistant airbag expands, and the gap therebetween is filled and sealed. At the same time, a limiting device is added inside the device, so that the staff can limit the lid of the kettle by the clamped limiting block during actual use, so as to prevent the lid from shaking and falling off during high-intensity reactions.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A diazotization kettle for the production of ethyl chrysanthemate comprises a kettle body and a kettle cover, the bottom of the kettle body is penetrated by a discharge valve, two mounting tubes are fixedly installed on the top of the kettle body, both mounting tubes are provided with limiting mechanisms, both mounting tubes are provided with slide grooves on the tops, both slide grooves are provided with clamping mechanisms, both ends of the clamping mechanisms extend into the relative limiting mechanisms and are tightly pressed against the inner side walls thereof, two second communicating grooves, cavities and mounting grooves are provided in the kettle body, both cavities are provided with compression mechanisms, both mounting grooves are provided with sealing mechanisms, both ends of the sealing mechanisms extend into the relative cavities and are connected to each other, both second communicating grooves are provided with extrusion mechanisms, both ends of the extrusion mechanisms extend into the relative cavities and are pressed against the side walls of the compression mechanism.

[0007] Preferably, the limiting mechanism includes a pull-out rod slidably connected in the mounting tube, a limiting slot is provided at the top of the pull-out rod, a limiting block is fixedly connected to the bottom of the pull-out rod, an anti-slip pad is provided at the bottom of the limiting block, and the anti-slip pad is against the top of the kettle cover.

[0008] Preferably, the clamping mechanism includes a pulling rod slidably connected in the slide groove, a first spring is fixedly connected between the bottom of the pulling rod and the inner bottom of the slide groove, and the end of the pulling rod extends into the limiting slot and is tightly pressed against its inner side wall.

[0009] Preferably, the compression mechanism comprises a piston plate slidably connected in the cavity, and a third spring is fixedly connected between the side wall of the piston plate and the inner side wall of the cavity.

[0010] Preferably, the sealing mechanism comprises a heat-resistant airbag fixedly mounted on the inner side wall of the mounting groove, a connecting pipe is connected through the side wall of the heat-resistant airbag, and an end of the connecting pipe extends into the cavity and is connected thereto.

[0011] Preferably, the extrusion mechanism includes an extrusion slider slidably connected to the second connecting groove, the side wall of the extrusion slider is fixedly connected to a push rod, the end of the push rod extends into the cavity and abuts against the piston plate, and a second spring is fixedly connected between the extrusion slider and the inner side wall of the second connecting groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Through the setting of the sealing mechanism, when the staff closes the kettle body and the kettle cover, the piston is displaced by squeezing the side wall of the kettle cover, so that the heat-resistant airbag expands and fills and seals the gap between them.

[0014] 2. Through the setting of the limiting mechanism, the staff can limit the kettle cover through the clamped rear limiting block during actual use to prevent it from shaking and falling during high-intensity reactions.

[0015] To sum up, the structural design of the utility model is reasonable. By setting a sealing mechanism and a limiting mechanism, when the staff closes the kettle body and the kettle cover, the piston can be displaced by squeezing the side wall of the kettle cover, so that the heat-resistant airbag can expand and fill and seal the gap between them. At the same time, through the setting of the limiting device, the staff can limit the kettle cover through the clamped rear limiting block during actual use to prevent it from shaking and falling during high-intensity reactions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a diazotization kettle for producing ethyl chrysanthemate proposed in the present invention;

[0017] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0018] Figure 3 for Figure 1 Enlarged view of point B in .

[0019] In the figure: 1 kettle body, 2 kettle cover, 3 discharge valve, 4 mounting pipe, 5 pulling rod, 6 first spring, 7 pulling rod, 8 limit slot, 9 limit block, 10 anti-slip pad, 11 second connecting groove, 12 extrusion slider, 13 ejector rod, 14 second spring, 15 cavity, 16 piston plate, 17 third spring, 18 connecting pipe, 19 mounting slot, 20 heat-resistant airbag. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-3 , a diazotization kettle for the production of ethyl chrysanthemate, comprises a kettle body 1 and a kettle cover 2, the bottom of the kettle body 1 is connected through a discharge valve 3, two mounting tubes 4 are fixedly installed on the top of the kettle body 1, and a limiting mechanism is provided in each of the two mounting tubes 4, the limiting mechanism comprises a pulling rod 7 slidably connected to the mounting tube 4, a limiting slot 8 is provided on the top of the pulling rod 7, a limiting block 9 is fixedly connected to the bottom of the pulling rod 7, and an anti-slip pad 10 is provided at the bottom of the limiting block 9, which is abutted against the top of the kettle cover 2. Through the setting of the limiting mechanism, the top of the kettle cover 2 can be tightened by the anti-slip pad 10 to prevent the violent reaction of the raw materials in the kettle body 1 from shaking off the kettle cover 2;

[0022] The tops of the two mounting tubes 4 are each provided with a slide groove, and the two slide grooves are each provided with a clamping mechanism. The ends of the two clamping mechanisms extend into the relative limiting mechanisms and are tightly pressed against the inner side walls thereof. The clamping mechanism comprises a pulling rod 5 slidably connected in the slide groove, and a first spring 6 is fixedly connected between the bottom of the pulling rod 5 and the inner bottom of the slide groove. The end of the pulling rod 5 extends into the limiting slot 8 and is tightly pressed against the inner side wall thereof. By setting the clamping mechanism, the pulling rod 7 can be prevented from displacement by tightening the limiting slot 8, thereby tightening and limiting the kettle cover 2.

[0023] The kettle body 1 is provided with two second communicating grooves 11, a cavity 15 and a mounting groove 19. A compression mechanism is provided in each of the two cavities 15. The compression mechanism includes a piston plate 16 slidably connected in the cavity 15. A third spring 17 is fixedly connected between the side wall of the piston plate 16 and the inner side wall of the cavity 15. Through the arrangement of the compression mechanism, the air in the cavity 15 can be squeezed out through the communicating pipe 18 by the displacement of the piston plate 16.

[0024] A sealing mechanism is provided in each of the two mounting grooves 19. The ends of the two sealing mechanisms extend into the opposite cavity 15 and communicate with each other. The sealing mechanism includes a heat-resistant airbag 20 fixedly mounted on the inner side wall of the mounting groove 19. A connecting pipe 18 is connected to the side wall of the heat-resistant airbag 20. The end of the connecting pipe 18 extends into the cavity 15 and communicates with each other. Through the provision of the sealing mechanism, the gap between the kettle body 1 and the kettle cover 2 can be filled and sealed to prevent the gas in the kettle body 1 from escaping.

[0025] Both second communicating grooves 11 are provided with an extrusion mechanism, and the ends of the two extrusion mechanisms extend into the relative cavity 15 and abut against the side wall of the compression mechanism. The extrusion mechanism includes an extrusion slider 12 slidably connected to the second communicating groove 11, and the side wall of the extrusion slider 12 is fixedly connected with a push rod 13. The end of the push rod 13 extends into the cavity 15 and abuts against the piston plate 16. A second spring 14 is fixedly connected between the extrusion slider 12 and the inner side wall of the second communicating groove 11. Through the setting of the extrusion mechanism, when the kettle cover 2 is closed, its side wall can be squeezed to squeeze the extrusion slider 12, thereby driving the push rod 13 to squeeze the piston plate 16 to move, thereby achieving the filling and sealing effect of the heat-resistant airbag 20.

[0026] The functional principle of this utility model can be explained through the following operation modes:

[0027] In the present invention, when the staff uses the present invention, the staff puts the raw materials into the kettle body 1 and covers the kettle cover 2 to realize the closure of the kettle body 1 and the kettle cover 2. In the process of closing the kettle cover 2, the side wall of the kettle cover 2 will squeeze the sliding block 12, and the sliding block 12 is squeezed to drive the push rod 13 to move. The push rod 13 squeezes the piston plate 16, so that the piston plate 16 pushes the air in the cavity 15 into the heat-resistant air bag 20 through the mounting groove 19, so that the heat-resistant air bag 20 expands and fills the gap between the outer wall of the kettle cover 2 and the inner wall of the kettle body 1, preventing the gas in the kettle body 1 from overflowing. After the kettle cover 2 is closed, the staff pulls the pulling card rod 5 and moves the pulling rod 7 left and right, and then releases the pulling of the pulling card rod 5. The pulling card rod 5 is reset left and right by the pulling force of the first spring 6 and is stuck in the limit card slot 8 to complete the fixation of the pulling rod 7, so that the anti-slip pad 10 is against the top of the kettle cover 2. It can ensure that the kettle cover 2 does not shake and fall when the raw materials in the kettle body 1 are reacting at high intensity, and the safety factor is high. When the raw materials are processed, the staff drives the discharge valve 3 to take them out, and pulls the pulling card rod 5 to repeat the above operation to pull out the kettle cover 2, which is convenient for adding materials for the next reaction processing.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A diazotization kettle for producing ethyl chrysanthemate, comprising a kettle body (1) and a kettle cover (2), characterized in that: The bottom of the kettle body (1) is connected through a discharge valve (3), and two mounting tubes (4) are fixedly installed on the top of the kettle body (1). A limiting mechanism is provided in each of the two mounting tubes (4). A sliding groove is provided on the top of each of the two mounting tubes (4). A clamping mechanism is provided in each of the two sliding grooves. The ends of the two clamping mechanisms extend into the relative limiting mechanism and abut against the inner wall thereof. Two second communicating grooves (11), a cavity (15) and a mounting groove (19) are provided in the kettle body (1). A compression mechanism is provided in each of the two cavities (15). A sealing mechanism is provided in each of the two mounting grooves (19). The ends of the two sealing mechanisms extend into the relative cavity (15) and are connected to each other. An extrusion mechanism is provided in each of the two second communicating grooves (11). The ends of the two extrusion mechanisms extend into the relative cavity (15) and abut against the side wall of the compression mechanism.

2. The diazotizing kettle for producing ethyl chrysanthemate according to claim 1, wherein The limiting mechanism comprises a pull rod (7) slidably connected in the mounting tube (4), a limiting slot (8) is provided at the top of the pull rod (7), a limiting block (9) is fixedly connected at the bottom of the pull rod (7), an anti-skid pad (10) is provided at the bottom of the limiting block (9), and the anti-skid pad (10) abuts against the top of the kettle cover (2).

3. The diazotizing kettle for producing ethyl chrysanthemate according to claim 2, wherein The clamping mechanism includes a pulling clamping rod (5) slidably connected in the slide groove, a first spring (6) is fixedly connected between the bottom of the pulling clamping rod (5) and the inner bottom of the slide groove, and the end of the pulling clamping rod (5) extends into the limiting clamping groove (8) and is tightly pressed against the inner side wall thereof.

4. The diazotizing kettle for producing ethyl chrysanthemate according to claim 1, wherein The compression mechanism comprises a piston plate (16) slidably connected in the cavity (15), and a third spring (17) is fixedly connected between the side wall of the piston plate (16) and the inner side wall of the cavity (15).

5. The diazotizing kettle for producing ethyl chrysanthemate according to claim 4, wherein The sealing mechanism comprises a heat-resistant airbag (20) fixedly mounted on the inner side wall of the mounting groove (19); a connecting pipe (18) is connected through the side wall of the heat-resistant airbag (20); and an end of the connecting pipe (18) extends into the cavity (15) and is in communication with the cavity (15).

6. The diazotizing kettle for producing ethyl chrysanthemate according to claim 4, wherein The extrusion mechanism comprises an extrusion slider (12) slidably connected in the second communicating groove (11); a push rod (13) is fixedly connected to the side wall of the extrusion slider (12); an end of the push rod (13) extends into the cavity (15) and abuts against the piston plate (16); and a second spring (14) is fixedly connected between the extrusion slider (12) and the inner side wall of the second communicating groove (11).

Images