Butadiene styrene rubber polymerization reaction kettle

Abstract

The utility model discloses a styrene butadiene rubber polymerization reaction kettle which comprises a reaction kettle, a cooling box is sleeved on the outer surface of the reaction kettle, one side of the cooling box is communicated with a threaded pipe, the top end of the threaded pipe is communicated with a water pump, the water outlet end of the water pump is communicated with a guide pipe, and one end of the guide pipe is communicated with the cooling box; a pressure relief pipe is arranged at the top of the reaction kettle, a valve is arranged in the middle of the pressure relief pipe, and a torsional spring is fixedly mounted on the lower surface of the valve; one side of the guide pipe communicates with a branch pipe, one end of the branch pipe communicates with a mounting pipe, a push plate is slidably mounted at one end of the mounting pipe, and an air cooling assembly is wound around the threaded pipe. Through the arrangement of the cooling box, the spiral pipe, the guide pipe, the branch pipe, the mounting pipe, the push plate, the pressure relief pipe, the valve, the torsional spring and the like, the spiral pipe forms water circulation, the cooling speed is increased, meanwhile, the use of water resources is reduced, the reaction kettle can be cooled, pressure relief can be automatically conducted on the reaction kettle through water pressure, discharging is convenient and rapid, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rubber polymerization reactor technical field, especially relate to a butadiene styrene rubber polymerization reactor. BACKGROUND

[0002] Butadiene styrene rubber is with butadiene and styrene as monomer, is the world's highest output, the biggest consumption general synthetic rubber variety at present, it adopts emulsion polymerization or anion solution polymerization process of free radical initiation and obtains, adopts emulsion polymerization in industry.

[0003] In the prior art, the Chinese utility model patent with patent No. CN220759246U discloses a rubber polymerization reaction device, which comprises a support one and a conical barrel type reaction kettle, the conical barrel type reaction kettle is fixedly connected with the support one, the upper surface of the conical barrel type reaction kettle is provided with a driving assembly, the driving assembly comprises a motor and a stirring column, a plurality of stirring assemblies are circumferentially arranged on the surface of the stirring column, the stirring assemblies comprise connecting rods one, two and three, the connecting rod two is arranged in an inclined manner and is in contact with the inner wall of the conical barrel type reaction kettle. In the utility model, the motor is started during stirring to drive the rotation of the stirring column. In the initial stage, the rotation of the stirring column drives the movement of the connecting rods one, two and three, and the helical blade one also stirs the internal materials to accelerate the reaction process. The connecting rod two cleans the inner wall of the conical barrel type reaction kettle during rotation to prevent the adhesion of reactants.

[0004] In the prior art, the rotation of the stirring column drives the movement of the connecting rods one, two and three, and the helical blade one also stirs the internal materials to accelerate the reaction process. The connecting rod two cleans the inner wall of the conical barrel type reaction kettle during rotation, but there are still some deficiencies in the overall use:

[0005] The above-mentioned prior art does not provide a pressure relief and cooling device. Since rubber polymerization reaction usually releases a large amount of heat, the temperature and pressure in the reaction kettle increase. If direct discharge operation is performed, the high temperature and high pressure environment may cause safety accidents such as explosion or leakage, which has safety hazards.

[0006] Secondly, the traditional reaction kettle cooling usually adopts the circulating water cooling mode for heat dissipation and cooling. This cooling speed is slow, and the use of water resources is increased. UTILITY MODEL CONTENTS

[0007] The utility model discloses a butadiene styrene rubber polymerization reactor to solve the technical problems of rubber polymerization reaction usually releasing a large amount of heat, causing the temperature and pressure in the reaction kettle to increase, and if direct discharge operation is performed, the high temperature and high pressure environment may cause safety accidents and slow cooling efficiency.

[0008] The utility model discloses to realize above-mentioned purpose, provide following technical scheme: a butadiene rubber polymerization reaction kettle, including the reation kettle, the outer surface of reation kettle is equipped with cooling box, is used for cooling reation kettle, one side of cooling box is connected with spiral pipe for accelerating the heat dissipation of cooling water, the top of spiral pipe is connected with water pump, the water outlet of water pump is connected with the pipe, and one end of pipe is connected with cooling box,

[0009] The top of the reaction kettle is provided with a pressure relief pipe for releasing the pressure inside the reaction kettle, a valve is arranged in the middle of the pressure relief pipe, and a torsional spring is fixedly installed on the lower surface of the valve.

[0010] One side of the pipe is connected with a branch pipe, one end of the branch pipe is connected with a mounting pipe, a push plate is slidably installed at one end of the mounting pipe, and the push plate is used to push the pressure relief pipe forward to open the pressure relief pipe when cooling.

[0011] The spiral pipe is wound with an air cooling assembly for further accelerating the heat dissipation of the cooling water inside the spiral pipe.

[0012] The reaction kettle is cooled by injecting cooling water into the cooling box, the contact area with air is increased by using the spiral pipe, so that the water inside the spiral pipe can be quickly cooled, and the reaction kettle is cooled by being introduced into the cooling box, forming a water circulation, improving the cooling speed, reducing the use of water resources, and automatically opening the valve of the pressure relief pipe by water pressure during cooling, automatically relieving pressure, without too much operation, greatly improving the work efficiency.

[0013] In the butadiene rubber polymerization reaction kettle, the air cooling assembly comprises a cooling cylinder wound by the spiral pipe, the cooling cylinder is hollow, a plurality of ventilation holes are formed in the lower surface of the cooling cylinder, and a fan is fixedly installed on the upper surface of the cooling cylinder.

[0014] By using the fan and the ventilation hole, the air flow rate inside the cooling cylinder is accelerated, the cooling speed of the spiral pipe is accelerated, and the cooling speed of the cooling water is further improved, so that the cooling speed of the reaction kettle can be improved, and the work efficiency is improved.

[0015] In the butadiene rubber polymerization reaction kettle, a detachable top cover is arranged at the top of the reaction kettle, a catalyst tank is fixedly installed on the upper surface of the top cover, and the pressure relief pipe is communicated with the top cover.

[0016] By using the catalyst, the polymerization reaction of rubber is accelerated, and the work efficiency is improved.

[0017] In the butadiene rubber polymerization reaction kettle, a stirring shaft is rotatably installed inside the reaction kettle, and a plurality of stirring blades are fixedly installed on the surface of the stirring shaft for accelerating the mixing of materials and catalysts.

[0018] The motor rotates to drive the stirring shaft to rotate, so that the stirring blades rotate to stir the rubber material and the catalyst, and further accelerate the polymerization efficiency.

[0019] In the butadiene styrene rubber polymerization reactor, the inner cavity upper surface of the reactor is fixedly provided with a conical mounting seat for rapid discharging, and the lower surface of the reactor is communicated with a discharge port located at the corner of the mounting seat.

[0020] The conical mounting seat can facilitate the gathering of materials to the discharge port and facilitate discharge.

[0021] In the butadiene styrene rubber polymerization reactor, the upper and lower ends of the stirring shaft are fixedly provided with support rods, and one end of each support rod is fixedly provided with a first scraper for scraping the materials adhered to the inner wall of the reactor.

[0022] The support rods are driven to rotate by the stirring shaft during operation, thereby driving the first scrapers connected thereto to rotate to scrape the materials adhered to the inner wall of the reactor.

[0023] In the butadiene styrene rubber polymerization reactor, the bottom of the stirring shaft is fixedly provided with a fixed ring, and the surface of the fixed ring is fixedly provided with a second scraper used in cooperation with the inclined surface of the mounting seat for scraping the materials adhered to the surface of the mounting seat.

[0024] In the butadiene styrene rubber polymerization reactor, the first scraper and the second scraper are both made of flexible material.

[0025] The first scraper and the second scraper are made of flexible material, which can always adhere to the inner wall of the reactor to improve the cleaning effect.

[0026] Compared with the prior art, the butadiene styrene rubber polymerization reactor has the following beneficial effects:

[0027] 1. The cooling box, the spiral pipe, the conduit, the branch pipe, the mounting pipe, the push plate, the pressure relief pipe, the valve and the torsional spring are arranged, the spiral pipe forms water circulation, the cooling speed is improved, the use of water resources is reduced, the reaction kettle can be cooled at the same time, the reaction kettle is automatically relieved by water pressure, the discharge is facilitated, the working efficiency is improved, and the like.

[0028] 2. The cooling cylinder, the ventilation hole and the fan are arranged, the cooling water can be further accelerated, the cooling speed of the reaction kettle can be improved, and the working efficiency is improved.

[0029] 3. This utility model, through the use of catalyst tank, stirring shaft, stirring blade, support rod, first scraper and second scraper, can fully mix rubber materials and catalyst, accelerate the polymerization speed, and clean the inner wall of the reactor, greatly improving the effect of use. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a top view of the structure of this utility model;

[0032] Figure 3 for Figure 2 Schematic diagram of the sectional structure of the middle AA section;

[0033] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0034] Figure 5 This is a schematic diagram of the top cover structure of this utility model;

[0035] Figure 6 for Figure 3 Enlarged structural diagram at point A in the middle;

[0036] Figure 7 for Figure 5 Enlarged structural diagram at point B.

[0037] In the diagram: Base 10; Reactor 11; Top cover 12; Feed inlet 13; Catalyst tank 14; Motor 15; Stirring shaft 16; Stirring blade 17; Mounting seat 18; Discharge port 19; Support rod 20; First scraper 21; Fixing ring 22; Second scraper 23; Cooling box 24; Water inlet pipe 25; Drain pipe 26; Column 27; Cooling cylinder 28; Spiral pipe 29; Water pump 30; Pipe 31; Branch pipe 32; Mounting pipe 33; Push plate 34; Pressure relief pipe 35; Valve 36; Torsion spring 37; Ventilation hole 38; Fan 39. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0039] refer to Figure 1 A styrene-butadiene rubber polymerization reactor includes a base 10, a reactor 11 fixedly installed at the bottom end of the base 10, a detachable top cover 12 provided on the upper surface of the reactor 11, and a feed inlet 13 fixedly installed on the upper surface of the top cover 12.

[0040] Further reference Figures 1-3The top of the top cover 12 is fixedly provided with a motor 15, one side of the motor 15 is fixedly provided with a catalyst tank 14 located on the upper surface of the top cover 12, the inner cavity of the reaction kettle 11 is fixedly provided with a conical mounting seat 18, the top of the mounting seat 18 is rotatably provided with a stirring shaft 16 driven by the motor 15, the surface of the stirring shaft 16 is fixedly provided with a plurality of stirring blades 17, and the lower surface of the reaction kettle 11 and the outer side of the mounting seat 18 are communicated with a discharge port 19.

[0041] Specifically, in use, the catalyst is added to the inside of the reaction kettle 11 through the catalyst tank 14 to accelerate the polymerization reaction of the rubber, thereby improving the working efficiency, and the motor 15 rotates to drive the stirring shaft 16 to rotate, so that the stirring blades 17 rotate to stir the rubber material and the catalyst, thereby further accelerating the polymerization efficiency, and finally the material is discharged from the discharge port 19. The conical mounting seat 18 can facilitate the accumulation of the material to the discharge port 19 and facilitate discharge.

[0042] Further, referring to Figure 3 The upper and lower ends of the stirring shaft 16 are fixedly provided with a plurality of supporting rods 20, and the distal ends of the supporting rods 20 are fixedly provided with first scrapers 21 for scraping the material adhered to the inner wall of the reaction kettle 11.

[0043] Specifically, in use, the stirring shaft 16 drives the supporting rods 20 to rotate when working, thereby driving the first scrapers 21 connected thereto to rotate to scrape the material adhered to the inner wall of the reaction kettle 11.

[0044] More specifically, when it is necessary to clean the inside of the reaction kettle 11, the top cover 12 can be opened, and the first scrapers 21 are used in cooperation with water spraying to quickly clean the inner wall of the reaction kettle 11 and improve the use effect.

[0045] Further, referring to Figure 3 and Figure 6 The distal end of the stirring shaft 16 is fixedly provided with a fixing ring 22, the outer surface of the fixing ring 22 is fixedly provided with a second scraper 23 used in cooperation with the mounting seat 18 for scraping the material adhered to the surface of the mounting seat 18.

[0046] Further, referring to Figure 1 The outer surface of the reaction kettle 11 is provided with a cooling box 24 for cooling the reaction kettle 11 to facilitate quick removal of the reacted material, one side of the upper portion of the cooling box 24 is communicated with a water inlet pipe 25, and one side of the lower portion of the cooling box 24 is communicated with a drain pipe 26.

[0047] Further, referring to Figure 1The side of the reaction kettle 11 is fixedly provided with a stand 27, the top of the stand 27 is fixedly provided with a cooling cylinder 28, the surface of the cooling cylinder 28 is sleeved with a spiral pipe 29, one end of the spiral pipe 29 is communicated with the cooling box 24, the top of the cooling cylinder 28 is fixedly provided with a water pump 30, the water outlet of the water pump 30 is communicated with a conduit 31, the conduit 31 is communicated with the cooling box 24, and the water inlet of the water pump 30 is communicated with the spiral pipe 29.

[0048] Specifically, when the cooling box 24 cools the reaction kettle 11, the water pump 30 pumps the water at the bottom of the cooling box 24 into the spiral pipe 29 and then into the top of the cooling box 24. The spiral pipe 29 is spirally arranged, thereby increasing the contact area with air, so that the water in the spiral pipe 29 can be quickly cooled and then introduced into the cooling box 24 to cool the reaction kettle 11, thereby forming a water circulation, improving the cooling speed and reducing the use of water resources.

[0049] Further, referring to Figure 3 and Figure 4 , the cooling cylinder 28 is hollow, and a plurality of ventilation holes 38 are formed in the lower surface of the cooling cylinder 28, and a fan 39 is fixedly installed on the upper surface of the cooling cylinder 28.

[0050] In use, the fan 39 works to accelerate the air flow rate in the cooling cylinder 28 through the use of the ventilation holes 38, thereby accelerating the cooling speed of the spiral pipe 29 and further improving the cooling speed of the cooling water, so as to improve the cooling speed of the reaction kettle 11 and accelerate the working efficiency.

[0051] Further, referring to Figure 1 , Figure 5 and Figure 7 , the top of the top cover 12 is fixedly provided with a pressure relief pipe 35 for quickly releasing the air pressure in the reaction kettle 11 to facilitate the rapid discharge of materials. The middle of the pressure relief pipe 35 is fixedly provided with a valve 36, the lower surface of the valve 36 and the upper surface of the top cover 12 are fixedly provided with a torsion spring 37, one side of the conduit 31 is communicated with a branch pipe 32, the distal end of the branch pipe 32 is communicated with a mounting pipe 33, and one end of the mounting pipe 33 is slidably provided with a push plate 34.

[0052] Specifically, when the cooling box 24 cools the reaction kettle 11, the cooling water enters the mounting pipe 33 through the branch pipe 32, pushes the push plate 34 out of the mounting pipe 33, so that the push plate 34 opens the valve 36, quickly releases the air pressure in the reaction kettle 11, facilitates rapid discharging, and accelerates the working efficiency. After the work is completed, the cooling water is discharged, so that the pressure of the push plate 34 disappears, the valve 36 is closed by the torsion spring 37, and the next work is facilitated.

[0053] As used in the specification and claims, certain terms have particular meanings. Those of skill in the art will understand that one or more embodiments described herein can use terminology particular to certain technologies. It is not intended that the description be limited to the embodiments described herein, but rather that the present application be given the broadest possible interpretation within its scope, consistent with the teachings provided herein and the patent statutes. As used in the specification and claims, the singular forms "a," "an" and "the" include plural references unless the context clearly dictates otherwise. "Approximately" means within 10% of the value stated.

[0054] It is to be understood that the terms "including", "comprising", "consisting" and "consisting essentially of" or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, has, or consists of, any feature listed herein can include, but is not limited to, other features not listed. It is intended that the article "a" or "an" precede singular elements of the claims, and "the" precede plural elements of the claims unless the context clearly indicates otherwise. Thus, the articles are to be construed as non-limiting unless their intended meaning is clear from the context.

[0055] The above specification and examples provide a complete description of the application. Since many embodiments of the application can be made without departing from the spirit and scope of the application, certain aspects of the application reside in the claims hereinafter appended.

Claims

1. A polymerization reactor for styrene-butadiene rubber, comprising a reactor (11), characterized in that, The outer surface of the reaction kettle (11) is sleeved with a cooling box (24) for cooling the reaction kettle (11), one side of the cooling box (24) is communicated with a spiral pipe (29) for accelerating heat dissipation of cooling water, the top end of the spiral pipe (29) is communicated with a water pump (30), the water outlet end of the water pump (30) is communicated with a conduit (31), one end of the conduit (31) is communicated with the cooling box (24); The top of the reaction kettle (11) is provided with a pressure relief pipe (35) for releasing the pressure inside the reaction kettle (11), the middle part of the pressure relief pipe (35) is provided with a valve (36), the lower surface of the valve (36) is fixedly installed with a torsional spring (37); One side of the conduit (31) is communicated with a branch pipe (32), one end of the branch pipe (32) is communicated with a mounting pipe (33), one end of the mounting pipe (33) is slidably installed with a push plate (34) for pushing the pressure relief pipe (35) forward when cooling to open the pressure relief pipe (35); The spiral pipe (29) is wound with an air cooling assembly for further accelerating heat dissipation of cooling water inside the spiral pipe (29).

2. The butadiene rubber polymerization reactor of claim 1, wherein, The air cooling assembly comprises a cooling cylinder (28) wound by the spiral pipe (29), the cooling cylinder (28) is hollow, a plurality of ventilation holes (38) are formed in the lower surface of the cooling cylinder (28), and a fan (39) is fixedly installed on the upper surface of the cooling cylinder (28).

3. The butadiene rubber polymerization reactor of claim 1, wherein, The top of the reaction kettle (11) is provided with a detachable top cover (12), the upper surface of the top cover (12) is fixedly installed with a catalyst tank (14), and the pressure relief pipe (35) is communicated with the top cover (12).

4. The butadiene rubber polymerization reactor of claim 3, wherein, A stirring shaft (16) is rotatably installed inside the reaction kettle (11), a plurality of stirring blades (17) are fixedly installed on the surface of the stirring shaft (16) for accelerating mixing of materials and catalysts.

5. The butadiene rubber polymerization reactor of claim 4, wherein, A conical mounting seat (18) is fixedly installed on the upper surface of the inner cavity of the reaction kettle (11) for rapid discharging, and a discharge port (19) is communicated with the lower surface of the reaction kettle (11), and the discharge port (19) is located at the corner of the mounting seat (18).

6. The butadiene rubber polymerization reactor of claim 4, wherein, Support rods (20) are fixedly installed on the upper and lower ends of the stirring shaft (16), a first scraper (21) is fixedly installed on one end of the support rod (20) for scraping the materials adhered to the inner wall of the reaction kettle (11).

7. The butadiene rubber polymerization reactor of claim 6, wherein, A fixing ring (22) is fixedly installed on the bottom of the stirring shaft (16), a second scraper (23) is fixedly installed on the surface of the fixing ring (22) for cooperating with the inclined surface of the mounting seat (18) for scraping the materials adhered to the surface of the mounting seat (18).

8. The butadiene rubber polymerization reactor of claim 6, wherein, The first scraper (21) and the second scraper (23) are made of flexible material.

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