Polyacrylamide polymerization reaction kettle convenient for temperature control

Abstract

The utility model relates to the field of reaction kettles, in particular to a polyacrylamide polymerization reaction kettle convenient for temperature control, which comprises a U-shaped frame, water bath barrels are rotationally installed on the inner walls of the two sides of the U-shaped frame, reaction kettle bodies are fixedly connected to the inner walls of the water bath barrels, and a positioning assembly is arranged in the middle of the upper end of the U-shaped frame. According to the utility model, one positioning cylinder is fixed between the two first positioning blocks, and the other positioning cylinder is fixed between the two second positioning blocks, so that the reaction kettle body can be supported, water is injected into the water bath cylinder through the water inlet pipe, and the water is heated by starting the heating mechanism in the water bath cylinder; in addition, when the inside of the reaction kettle body needs to be cleaned, external water is introduced into the water inlet pipe, and the second electromagnetic valve is opened, so that the hot water in the water bath barrel flows into the reaction kettle body through the water outlet pipe, and under the stirring action of the stirring assembly, the inside of the reaction kettle body can be cleaned by using the hot water.

Description

Technical Field

[0001] The utility model belongs to the field of reaction kettles, and in particular relates to a polyacrylamide polymerization reaction kettle which is convenient for temperature control. Background Art

[0002] Polyacrylamide (PAM) is an important water-soluble polymer. Its performance and application effect depend largely on temperature control during the polymerization process. In the polymerization reaction of polyacrylamide, fluctuations in reaction temperature will cause changes in chain growth rate and degree of polymerization, thereby affecting the molecular weight and molecular weight distribution of the polymer. Therefore, the reactor needs to be temperature controlled.

[0003] At present, the utility model with patent number CN202220196904.6 discloses a polyacrylamide polymerization reactor, including a reactor body and a reactor cover, wherein the reactor cover is arranged on the top of the reactor body. The polyacrylamide polymerization reactor is convenient for cleaning the inside of the reactor body through the rotatable reactor body, and the block is separated from the slot by bending the limit block upward, and the filter tube can be taken out downward along the slide groove through the slider, so as to facilitate cleaning of the water outlet. However, the reactor is usually heavy, and it is inconvenient to stabilize and fix the reactor after manually rotating it, and it is inconvenient to use the hot water of the water bath to clean the inside of the reactor, which needs further improvement.

[0004] Therefore, a polyacrylamide polymerization reactor which is easy to control temperature is proposed. The reactor is provided with an angle adjustment mechanism. After the reactor is rotated, the reactor can be stably fixed, and the inside of the reactor can be cleaned with hot water from a water bath. Utility Model Content

[0005] In order to overcome the problem that the reactor is usually heavy, it is inconvenient to stably fix the reactor after manually rotating it, and it is inconvenient to use hot water in a water bath to clean the inside of the reactor.

[0006] The technical scheme of the utility model is: a polyacrylamide polymerization reactor convenient for temperature control, comprising a U-shaped frame; water baths are rotatably installed on the inner walls of both sides of the U-shaped frame, the inner walls of the water bath are fixedly connected to a reactor body, a positioning assembly is arranged at the middle part of the upper end of the U-shaped frame, one end of the reactor body is arranged with an auxiliary discharging assembly for assisting in feeding, the other end of the reactor body is arranged with a stirring assembly for stirring the inside of the reactor body, one end of the reactor body is fixedly connected with two screw grooves, two second positioning blocks are arranged on the stirring assembly, one end of the water bath is arranged with a water outlet pipe, the water outlet pipe is installed with a second solenoid valve, the other end of the water outlet pipe penetrates the side wall of the reactor body and extends to the inside of the reactor body, one end of the water bath is penetrated and fixedly connected with a water inlet pipe, the water inlet pipe is installed with a first solenoid valve, and a heating mechanism is arranged in the water bath;

[0007] The positioning assembly includes a support block, a first slot body, a second slot body, a sliding column, an electric cylinder, a positioning tube and a bolt; a support block is fixedly connected to the middle part of the upper end of the U-shaped frame, a first slot body is opened at both ends of the support block, a second slot body is opened on both sides of the support block, the second slot body and the first slot body are interconnected, the top surface of the support block is H-shaped, a sliding column is slidably arranged on the inner wall of the second slot body, an electric cylinder is fixedly connected to the side wall of the sliding column, both sides of the electric cylinder are fitted with both sides of the inner wall of the first slot body, a positioning tube is fixedly connected to the upper end of the output shaft of the electric cylinder, a bolt is threadedly installed on the inner wall of the positioning tube, the bolt is matched with the screw hole on the first positioning block, and the bolt is also matched with the screw hole on the second positioning block.

[0008] Preferably, during use, when the reactor body needs to be supported, the electric cylinder is turned on to adjust the position of the positioning cylinder, so that one of the positioning cylinders is fixed between the two first positioning blocks, and the other positioning cylinder is fixed between the two second positioning blocks, so that the reactor body can be supported, and water is injected into the water bath through the water inlet pipe. After the heating mechanism in the water bath is turned on to heat the water, the hot water can be used to heat the reactor body in a water bath. In addition, when the reactor body needs to be cleaned, external water is passed into the water inlet pipe, and the second solenoid valve is turned on to allow the hot water in the water bath to flow into the reactor body through the water outlet pipe. Under the stirring action of the stirring assembly, the hot water can be used to clean the reactor body, which solves the problem that it is inconvenient to stably fix the reactor after manually turning it, and it is inconvenient to use the hot water in the water bath to clean the inside of the reactor.

[0009] Preferably, the heating mechanism comprises electric heating rods and a temperature sensor; a cavity is provided inside the water bath, and the bottom surface of the inner wall of the cavity is fixedly connected with evenly distributed electric heating rods and a temperature sensor.

[0010] Preferably, a controller is fixedly connected to one side of the U-shaped frame, the controller is electrically connected to the temperature sensor, and the controller is electrically connected to the electric heating rod.

[0011] Preferably, the positioning assembly also includes a fixed plate, a cylinder and a push block; both ends of the support block are fixedly connected to the fixed plates, the end of the fixed plate away from the U-shaped frame is fixedly connected to the cylinder, the output shaft of the cylinder passes through the fixed plate and extends to the interior of the first groove body, and the push block is fixedly connected to the output shaft of the cylinder.

[0012] Preferably, the stirring assembly includes a mounting cover, a support cylinder, a motor, a first rotating column, a stirring plate, a second rotating column and a cleaning brush; a discharge pipe is fixedly connected to a middle portion of one end of the water bath cylinder, a threaded plug cover is threadedly installed on the inner wall of the discharge pipe, a screw groove is opened at the other end of the water bath cylinder, a mounting cover is threadedly installed on the inner wall of the screw groove, the first rotating column is rotatably installed on one end of the mounting cover, one end of the first rotating column is fixedly connected to one end of the second rotating column, the other end of the second rotating column is fixedly connected to a cleaning brush, the bristles of the cleaning brush are in contact with the inner wall of the discharge pipe, the other end of the mounting cover is fixedly connected to the support cylinder, the support cylinder is fixedly connected to the motor, the output shaft of the motor passes through the support cylinder and is fixedly connected to the other end of the first rotating column, and two stirring plates are fixedly connected to the side wall of the first rotating column.

[0013] Preferably, the stirring assembly further comprises a handle; two handles are fixedly connected to the other end of the mounting cover, the handles are U-shaped, and the two handles are symmetrical with respect to the motor.

[0014] Preferably, the auxiliary discharging assembly includes a movable cylinder, a baffle, a bent pipe and an insert block; a movable cylinder is placed at one end of the reactor body, a baffle is fixedly connected to the bottom surface of the inner wall of the movable cylinder at one end close to the reactor body, an insert block is fixedly connected to the lower end of the movable cylinder, both sides of the insert block are respectively fitted with the ends of the two first positioning blocks close to each other, and a bent pipe is fixedly connected to the inner wall of the movable cylinder at one end away from the reactor body.

[0015] The beneficial effects of the utility model are as follows: when the reactor body needs to be supported, the electric cylinder is turned on to adjust the position of the positioning cylinder, so that one of the positioning cylinders is fixed between the two first positioning blocks, and the other positioning cylinder is fixed between the two second positioning blocks, so that the reactor body can be supported, and water is injected into the water bath cylinder through the water inlet pipe. After the heating mechanism in the water bath cylinder is turned on to heat the water, the hot water can be used to heat the reactor body in a water bath. In addition, when the reactor body needs to be cleaned, external water is introduced into the water inlet pipe, and the second solenoid valve is turned on to allow the hot water in the water bath cylinder to flow into the reactor body through the water outlet pipe. Under the stirring action of the stirring assembly, the hot water can be used to clean the reactor body, which solves the problem that it is inconvenient to stably fix the reactor after manually rotating it, and it is inconvenient to use the hot water in the water bath to clean the inside of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure schematic diagram of a polyacrylamide polymerization reactor that is easy to control temperature is shown in the utility model;

[0017] Figure 2 The three-dimensional structure schematic diagram of the positioning component of a polyacrylamide polymerization reactor that is convenient for temperature control is shown in the utility model;

[0018] Figure 3The present invention shows a schematic diagram of a three-dimensional split structure of a discharge pipe and a threaded plug cover of a polyacrylamide polymerization reactor that is convenient for temperature control;

[0019] Figure 4 The present invention shows a schematic diagram of the internal cross-sectional three-dimensional structure of a water bath of a polyacrylamide polymerization reactor that is convenient for temperature control;

[0020] Figure 5 The present invention shows a three-dimensional structure schematic diagram of a stirring assembly of a polyacrylamide polymerization reactor that is convenient for temperature control;

[0021] Figure 6 What is shown is a three-dimensional structural schematic diagram of an auxiliary discharging component of a polyacrylamide polymerization reactor that is easy to control temperature according to the utility model.

[0022] The markings in the attached drawings are: 1, U-shaped frame; 2, water bath; 3, positioning assembly; 301, support block; 302, first tank; 303, second tank; 304, slide column; 305, electric cylinder; 306, positioning cylinder; 307, bolt; 308, fixing plate; 309, cylinder; 310, push block; 4, reactor body; 5, stirring assembly; 501, installation cover; 502, support cylinder; 503, motor; 504, handle; 505, first rotating Column; 506, stirring plate; 507, second rotating column; 508, cleaning brush; 6, auxiliary discharging assembly; 601, movable cylinder; 602, baffle; 603, elbow; 604, plug; 7, first positioning block; 8, screw groove; 9, water inlet pipe; 10, first solenoid valve; 11, water outlet pipe; 12, second solenoid valve; 13, discharge pipe; 14, threaded plug cover; 15, controller; 16, electric heating rod; 17, temperature sensor; 18, second positioning block. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Example 1: Please refer to Figure 1-Figure 6, a polyacrylamide polymerization reactor convenient for temperature control, comprising a U-shaped frame 1; water baths 2 are rotatably mounted on the inner walls of both sides of the U-shaped frame 1, a reactor body 4 is fixedly connected to the inner wall of the water bath 2, a positioning assembly 3 is arranged at the middle part of the upper end of the U-shaped frame 1, an auxiliary discharging assembly 6 for assisting material discharge is arranged at one end of the reactor body 4, a stirring assembly 5 for stirring the inside of the reactor body 4 is arranged at the other end of the reactor body 4, two screw grooves 8 are fixedly connected to one end of the reactor body 4, two second positioning blocks 18 are arranged on the stirring assembly 5, a water outlet pipe 11 is installed at one end of the water bath 2, a second solenoid valve 12 is installed on the water outlet pipe 11, the other end of the water outlet pipe 11 penetrates the side wall of the reactor body 4 and extends to the inside of the reactor body 4, a water inlet pipe 9 is fixedly connected to one end of the water bath 2, a first solenoid valve 10 is installed on the water inlet pipe 9, and a heating mechanism is arranged in the water bath 2;

[0025] The positioning assembly 3 includes a support block 301, a first slot body 302, a second slot body 303, a sliding column 304, an electric cylinder 305, a positioning cylinder 306 and a bolt 307; the support block 301 is fixedly connected to the middle part of the upper end of the U-shaped frame 1, the first slot body 302 is provided at both ends of the support block 301, the second slot body 303 is provided on both sides of the support block 301, the second slot body 303 and the first slot body 302 are interconnected, and the top surface of the support block 301 is H-shaped. A sliding column 304 is slidably provided on the inner wall of the second groove body 303, and an electric cylinder 305 is fixedly connected to the side wall of the sliding column 304. Both sides of the electric cylinder 305 fit with both sides of the inner wall of the first groove body 302. A positioning cylinder 306 is fixedly connected to the upper end of the output shaft of the electric cylinder 305. A bolt 307 is threadedly installed on the inner wall of the positioning cylinder 306. The bolt 307 is adapted to the screw hole on the first positioning block 7, and the bolt 307 is also adapted to the screw hole on the second positioning block 18.

[0026] During use, when it is necessary to support the reactor body 4, the electric cylinder 305 is opened to adjust the position of the positioning cylinder 306, so that one of the positioning cylinders 306 is fixed between the two first positioning blocks 7, and the other positioning cylinder 306 is fixed between the two second positioning blocks 18, so that the support of the reactor body 4 can be achieved, and water is injected into the water bath 2 through the water inlet pipe 9. After the heating mechanism in the water bath 2 is opened to heat the water, the hot water can be used to heat the reactor body 4 in a water bath. In addition, when it is necessary to clean the reactor body 4, external water is introduced into the water inlet pipe 9, and the second solenoid valve 12 is opened, so that the hot water in the water bath 2 flows into the reactor body 4 through the water outlet pipe 11. Under the stirring action of the stirring assembly 5, the hot water can be used to clean the reactor body 4.

[0027] See also Figure 1 and Figure 4In this embodiment, the heating mechanism includes an electric heating rod 16 and a temperature sensor 17; a cavity is opened inside the water bath 2, and the bottom surface of the inner wall of the cavity is fixed with evenly distributed electric heating rods 16 and a temperature sensor 17. Turning on the temperature sensor 17 can monitor the water temperature in the cavity, and turning on the electric heating rod 16 can heat the water in the cavity to a desired temperature.

[0028] See also Figure 1 , Figure 3 and Figure 4 In this embodiment, a controller 15 is fixedly connected to one side of the U-shaped frame 1, and the controller 15 is electrically connected to the temperature sensor 17, and the controller 15 is electrically connected to the electric heating rod 16. When the temperature sensor 17 detects that the temperature reaches the set value, turning on the controller 15 can turn off the electric heating rod 16 and stop heating the water in the water bath 2.

[0029] See also Figure 1 and Figure 2 In this embodiment, the positioning assembly 3 also includes a fixing plate 308, a cylinder 309 and a push block 310; both ends of the support block 301 are fixedly connected to the fixing plate 308, and the end of the fixing plate 308 away from the U-shaped frame 1 is fixedly connected to the cylinder 309, and the output shaft of the cylinder 309 passes through the fixing plate 308 and extends to the inside of the first slot body 302, and the push block 310 is fixedly connected to the output shaft of the cylinder 309. When the sliding column 304 needs to be positioned, the cylinder 309 is turned on to make the push block 310 move in the direction of the sliding column 304, and finally resist the sliding column 304, so that the sliding column 304 can be stably placed, thereby realizing the stable placement of the electric cylinder 305.

[0030] See also Figure 1 and Figure 5In this embodiment, the stirring assembly 5 includes a mounting cover 501, a support cylinder 502, a motor 503, a first rotating column 505, a stirring plate 506, a second rotating column 507 and a cleaning brush 508; a discharge pipe 13 is fixedly connected to the middle of one end of the water bath cylinder 2, and a threaded plug cover 14 is threadedly installed on the inner wall of the discharge pipe 13. A screw groove 8 is opened at the other end of the water bath cylinder 2, and a mounting cover 501 is threadedly installed on the inner wall of the screw groove 8. The first rotating column 505 is rotatably installed on one end of the mounting cover 501, one end of the first rotating column 505 is fixedly connected to one end of the second rotating column 507, and the other end of the second rotating column 507 is fixedly connected to the cleaning brush 508, and the bristles of the cleaning brush 508 and the discharge pipe 13 is fitted, and the other end of the mounting cover 501 is fixedly connected to a support cylinder 502, and a motor 503 is fixedly connected to the support cylinder 502. The output shaft of the motor 503 passes through the support cylinder 502 and is fixedly connected to the other end of the first rotating column 505. Two stirring plates 506 are fixedly connected to the side wall of the first rotating column 505. When it is necessary to stir the interior of the reactor body 4, the motor 503 is turned on to make the first rotating column 505 drive the stirring plate 506 to rotate, so as to stir the interior of the reactor body 4. The first rotating column 505 will also drive the second rotating column 507 to rotate. The cleaning brush 508 can wipe the inner wall of the discharge pipe 13 to prevent the inner wall of the discharge pipe 13 from sticking and clogging, which is beneficial to the discharge of the mixed liquid.

[0031] See also Figure 1 and Figure 5 In this embodiment, the stirring assembly 5 also includes a handle 504; two handles 504 are fixedly connected to the other end of the mounting cover 501, and the handles 504 are U-shaped. The two handles 504 are symmetrical with respect to the motor 503. By holding the two handles 504, the mounting cover 501 can be easily removed from the inner wall of the screw groove 8 through the threaded action.

[0032] See also Figure 1 and Figure 6 In this embodiment, the auxiliary discharging assembly 6 includes a movable cylinder 601, a baffle 602, a bend pipe 603 and an insert block 604; the movable cylinder 601 is placed at one end of the reactor body 4, the baffle 602 is fixedly connected to the bottom surface of the inner wall of the end of the movable cylinder 601 close to the reactor body 4, the insert block 604 is fixedly connected to the lower end of the movable cylinder 601, the two sides of the insert block 604 are respectively fitted with the ends of the two first positioning blocks 7 close to each other, the inner wall of the end of the movable cylinder 601 away from the reactor body 4 is fixedly connected to the bend pipe 603, the insert block 604 is placed on the end of the two first positioning blocks 7 close to each other, the movable cylinder 601 will be supported by the two first positioning blocks 7, after the threaded plug cover 14 is opened, the liquid in the reactor body 4 will flow into the interior of the movable cylinder 601, and then flow out through the bend pipe 603.

[0033] Working principle: When the reactor body 4 needs to be supported, the electric cylinder 305 is turned on to adjust the position of the positioning cylinder 306, so that one positioning cylinder 306 is fixed between the two first positioning blocks 7, and the other positioning cylinder 306 is fixed between the two second positioning blocks 18, so that the reactor body 4 can be supported;

[0034] When the slide column 304 needs to be positioned, the air cylinder 309 is turned on to move the push block 310 toward the slide column 304 and finally abut against the slide column 304, so that the slide column 304 can be stably placed, thereby achieving the stable placement of the electric cylinder 305;

[0035] When in use, water is injected into the water bath 2 through the water inlet pipe 9, and after the heating mechanism in the water bath 2 is turned on to heat the water, the hot water can heat the reactor body 4 in a water bath;

[0036] When the reactor body 4 needs to be cleaned, external water is introduced into the water inlet pipe 9, and the second solenoid valve 12 is opened, so that the hot water in the water bath 2 flows into the reactor body 4 through the water outlet pipe 11. Under the stirring action of the stirring assembly 5, the hot water can be used to clean the reactor body 4;

[0037] The temperature sensor 17 can be turned on to monitor the water temperature in the cavity, and the electric heating rod 16 can be turned on to heat the water in the cavity to a desired temperature. When the temperature sensor 17 detects that the temperature reaches a set value, the controller 15 can be turned on to turn off the electric heating rod 16 to stop heating the water in the water bath 2;

[0038] When the interior of the reaction kettle body 4 needs to be stirred, the motor 503 is turned on so that the first rotating column 505 drives the stirring plate 506 to rotate, and the interior of the reaction kettle body 4 can be stirred. The first rotating column 505 also drives the second rotating column 507 to rotate. The cleaning brush 508 can wipe the inner wall of the discharge pipe 13 to prevent the inner wall of the discharge pipe 13 from sticking and clogging, which is conducive to the discharge of the mixed liquid;

[0039] When the mixed liquid is discharged, the insert block 604 is placed at the end where the two first positioning blocks 7 are close to each other, and the movable cylinder 601 will be supported by the two first positioning blocks 7. After opening the threaded plug cover 14, the liquid in the reactor body 4 will flow into the interior of the movable cylinder 601 and then flow out through the curved pipe 603.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A polyacrylamide polymerization reactor which is easy to control temperature, comprising a U-shaped frame (1); characterized in that: Water baths (2) are rotatably mounted on the inner walls of both sides of the U-shaped frame (1); a reactor body (4) is fixedly connected to the inner wall of the water bath (2); a positioning assembly (3) is arranged at the middle of the upper end of the U-shaped frame (1); an auxiliary discharging assembly (6) for assisting in discharging is arranged at one end of the reactor body (4); a stirring assembly (5) for stirring the interior of the reactor body (4) is arranged at the other end of the reactor body (4); two screw grooves (8) are fixedly connected to one end of the reactor body (4); two second positioning blocks (18) are arranged on the stirring assembly (5); a water outlet pipe (11) is mounted on one end of the water bath (2); a second solenoid valve (12) is mounted on the water outlet pipe (11); the other end of the water outlet pipe (11) passes through the side wall of the reactor body (4) and extends into the interior of the reactor body (4); a water inlet pipe (9) is fixedly connected to one end of the water bath (2); a first solenoid valve (10) is mounted on the water inlet pipe (9); a heating mechanism is arranged in the water bath (2); The positioning assembly (3) comprises a support block (301), a first slot body (302), a second slot body (303), a sliding column (304), an electric cylinder (305), a positioning cylinder (306) and a bolt (307); the support block (301) is fixedly connected to the middle part of the upper end of the U-shaped frame (1); both ends of the support block (301) are provided with the first slot body (302); both sides of the support block (301) are provided with the second slot body (303); the second slot body (303) and the first slot body (302) are interconnected; the top surface of the support block (301) is The second trough body (303) is slidably provided with a sliding column (304), the side wall of the sliding column (304) is fixedly connected to an electric cylinder (305), the two sides of the electric cylinder (305) are in contact with the two sides of the inner wall of the first trough body (302), the upper end of the output shaft of the electric cylinder (305) is fixedly connected to a positioning cylinder (306), the inner wall of the positioning cylinder (306) is threadedly mounted with a bolt (307), the bolt (307) is matched with a screw hole on the first positioning block (7), and the bolt (307) is also matched with a screw hole on the second positioning block (18).

2. The polyacrylamide polymerization reactor that is easy to control temperature according to claim 1, characterized in that: The heating mechanism comprises an electric heating rod (16) and a temperature sensor (17); a cavity is provided inside the water bath (2), and the bottom surface of the inner wall of the cavity is fixedly connected with evenly distributed electric heating rods (16) and a temperature sensor (17).

3. The polyacrylamide polymerization reactor that is easy to control temperature according to claim 1, characterized in that: A controller (15) is fixedly connected to one side of the U-shaped frame (1); the controller (15) is electrically connected to a temperature sensor (17); and the controller (15) is electrically connected to an electric heating rod (16).

4. The polyacrylamide polymerization reactor that is easy to control temperature according to claim 1, characterized in that: The positioning assembly (3) further comprises a fixing plate (308), a cylinder (309) and a push block (310); both ends of the support block (301) are fixedly connected to the fixing plates (308); one end of the fixing plate (308) away from the U-shaped frame (1) is fixedly connected to the cylinder (309); an output shaft of the cylinder (309) passes through the fixing plate (308) and extends to the interior of the first trough body (302); and a push block (310) is fixedly connected to the output shaft of the cylinder (309).

5. The polyacrylamide polymerization reactor that is easy to control temperature according to claim 1, characterized in that: The stirring assembly (5) comprises a mounting cover (501), a support cylinder (502), a motor (503), a first rotating column (505), a stirring plate (506), a second rotating column (507) and a cleaning brush (508); a discharge pipe (13) is fixedly connected to the middle of one end of the water bath cylinder (2); a threaded plug cover (14) is threadedly installed on the inner wall of the discharge pipe (13); a screw groove (8) is formed at the other end of the water bath cylinder (2); a mounting cover (501) is threadedly installed on the inner wall of the screw groove (8); and the first rotating column (505) is rotatably installed on one end of the mounting cover (501). One end of the first rotating column (505) is fixedly connected to one end of the second rotating column (507), and the other end of the second rotating column (507) is fixedly connected to a cleaning brush (508), and the bristles of the cleaning brush (508) are in contact with the inner wall of the discharge pipe (13). The other end of the mounting cover (501) is fixedly connected to a support tube (502), and a motor (503) is fixedly connected to the support tube (502). The output shaft of the motor (503) passes through the support tube (502) and is fixedly connected to the other end of the first rotating column (505). Two stirring plates (506) are fixedly connected to the side wall of the first rotating column (505).

6. The polyacrylamide polymerization reactor that is easy to control temperature according to claim 5, characterized in that: The stirring assembly (5) further comprises a handle (504); the other end of the mounting cover (501) is fixedly connected to two handles (504), the handles (504) are U-shaped, and the two handles (504) are symmetrical with respect to the motor (503).

7. The polyacrylamide polymerization reactor that is easy to control temperature according to claim 1, characterized in that: The auxiliary discharging assembly (6) comprises a movable cylinder (601), a baffle (602), a curved pipe (603) and an insert block (604); the movable cylinder (601) is placed at one end of the reaction kettle body (4); the baffle (602) is fixedly connected to the bottom surface of the inner wall of the end of the movable cylinder (601) close to the reaction kettle body (4); the insert block (604) is fixedly connected to the lower end of the movable cylinder (601); both sides of the insert block (604) are respectively in contact with the ends of the two first positioning blocks (7) close to each other; and the curved pipe (603) is fixedly connected to the inner wall of the end of the movable cylinder (601) away from the reaction kettle body (4).

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