Polyether polymerization reaction device

Abstract

The utility model relates to the technical field of polyether polyol polymerization, in particular to a polyether polymerization reaction device. Comprising an outer box, a bottom box, an inner box, a stirring mechanism and a heat supply mechanism, the inner box is arranged on the inner side of the outer box, and a heating cavity is formed between the inner box and the outer box; the bottom box is arranged at the bottom end of the outer box; the stirring mechanism comprises a rotating pipe, a heat conduction pipe, a driving assembly and a plurality of stirring rods; the heat supply mechanism is installed on the bottom box and used for conveying hot air into the heating cavity and the heat conduction pipe. While the outer wall of the inner box is heated, the rotating pipe and the plurality of stirring rods can be heated, so that the interior of raw materials can be heated, and the heating effect on the raw materials is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyether polyol polymerization, in particular to a polyether polymerization reaction device. Background Art

[0002] As a chemical material, polyether polyol can be used in the production process of various industrial products. For example, detergents, defoamers, emulsifiers, wetting agents, antistatic agents, and dispersants, etc., all use it as the main raw material. Generally, when participating in the production of reagents, it needs to be connected with other raw materials and put into a reaction kettle for stirring and heating to achieve a polymerization reaction.

[0003] Chinese Patent with the publication number CN220478827U discloses a polymerization reaction kettle device for polyether polyol, including a reaction kettle. A frame plate is fixedly connected to the top of the reaction kettle, and a driving motor is fixedly connected inside the frame plate. The surface of the output shaft of the driving motor is fixedly connected with a rotating rod through a coupling.

[0004] The above-mentioned disclosed patent still has the following technical defects: setting the inner wall of the reaction kettle to be wavy can increase the heating area, but it is easy to cause raw material residues, inconvenient to clean, and the wavy reaction kettle reduces the volume of its inner cavity. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a polyether polymerization reaction device aiming at the problems existing in the background art.

[0006] The technical solution of the utility model, a polyether polymerization reaction device, includes:

[0007] An outer box and an inner box. The inner box is arranged inside the outer box, and a heating cavity is formed between the inner box and the outer box;

[0008] A bottom box, which is arranged at the bottom end of the outer box;

[0009] A stirring mechanism, which includes a rotating tube, a heat-conducting tube, a driving component, and a plurality of stirring rods. The heat-conducting tube is installed at the center of the bottom of the inner box. The rotating tube is rotatably installed on the heat-conducting tube, and the rotating tube is communicated with the heat-conducting tube. A plurality of stirring rods are all installed on the rotating tube. The stirring rods have a hollow structure and are communicated with the inside of the rotating tube. The driving component is used to drive the rotating tube to rotate;

[0010] A heating mechanism installed on the bottom box for conveying hot air to the heating cavity and the inside of the heat-conducting tube.

[0011] Preferably, the driving assembly includes a rotating sleeve, a motor, a cam, a turntable, bevel gears, and a bevel gear disc. Among them, the rotating sleeve is rotatably installed at the top of the outer box, the rotating pipe is vertically slidably installed on the rotating sleeve, the motor is installed on the outer box, the bevel gear and the cam are both connected to the output shaft of the motor, the bevel gear disc is fixed on the rotating sleeve and meshes with the bevel gear, the turntable is connected to the upper end of the rotating pipe, and the cam contacts the bottom end of the turntable.

[0012] Preferably, a partition is provided inside the bottom box. The spaces separated by the partition on both sides are chamber a and chamber b respectively. The heat conduction pipe communicates with the inside of chamber b. The heating mechanism includes a blower, a heating device, and a return pipe. The blower and the heating device are respectively installed inside chamber a and chamber b. The output end of the blower communicates with the inside of chamber b, and its input end communicates with the inside of the heating cavity. The two ends of the return pipe are respectively connected to chamber b and the heating cavity.

[0013] Preferably, a temperature sensor is installed inside chamber b, and a controller is installed on the bottom box. The controller is electrically connected to both the temperature sensor and the heating device.

[0014] Preferably, a heat insulation layer is provided on the inner surface of the outer box.

[0015] Preferably, scraping rods are vertically arranged inside the inner box and are in contact with its inner wall. The scraping rods are connected to the outer ends of the stirring rods.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects: The heating mechanism conveys hot air into the heating cavity and the inside of the heat conduction pipe. The hot air enters the inside of the heating cavity for heating, so as to realize heating the outer wall of the inner box. The hot air entering the heat conduction pipe then flows into the inside of multiple stirring rods through the rotating pipe, and the heated stirring rods can realize heating the inside of the raw materials to increase the heating area of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model.

[0018] Figure 2 is a sectional structural diagram of the utility model.

[0019] Figure 3 is Figure 1 a partial enlarged structural schematic diagram of A of

[0020] Reference numerals: 1, outer box; 101, heating cavity; 2, bottom box; 201, chamber a; 202, chamber b; 3, inner box; 4, rotating tube; 5, stirring rod; 6, heat conduction tube; 7, rotating sleeve; 8, blower; 9, partition board; 10, heating device; 11, discharge pipe; 12, valve; 13, return pipe; 14, feed hopper; 15, motor; 16, cam; 17, turntable; 18, bevel gear; 19, bevel gear disc; 20, scraping rod. Detailed implementation manners

[0021] Embodiment 1

[0022] As Figure 1 - Figure 2 shown, a polyether polymerization reaction device proposed in this embodiment includes an outer box 1, a bottom box 2, an inner box 3, a stirring mechanism and a heat supply mechanism.

[0023] The inner box 3 is arranged inside the outer box 1, and a heating cavity 101 is formed between the inner box 3 and the outer box 1; a heat insulation layer is arranged on the inner surface of the outer box 1; the bottom box 2 is arranged at the bottom end of the outer box 1, a partition board 9 is arranged inside the bottom box 2, and the spaces separated by the partition board 9 on both sides are chamber a 201 and chamber b 202 respectively, and the heat conduction tube 6 is communicated with the inside of chamber b 202.

[0024] The stirring mechanism includes a rotating tube 4, a heat conduction tube 6, a driving assembly and a plurality of stirring rods 5. The heat conduction tube 6 is installed at the center of the bottom of the inner box 3, the rotating tube 4 is rotatably installed on the heat conduction tube 6, and the rotating tube 4 is communicated with the heat conduction tube 6. A plurality of stirring rods 5 are all installed on the rotating tube 4. The stirring rods 5 have a hollow structure and are communicated with the inside of the rotating tube 4. The driving assembly is used to drive the rotating tube 4 to rotate; a scraping rod 20 in contact with the inner wall is vertically arranged inside the inner box 3. The scraping rod 20 is connected to the outer end of the stirring rod 5. When the stirring rod 5 rotates, the scraping rod 20 is driven to rotate. During the rotation process, the scraping rod 20 contacts the inner surface of the inner box 3, so that the raw materials on the inner wall of the inner box 3 can be scraped off, thereby reducing the residual material.

[0025] The heat supply mechanism is installed on the bottom box 2 and is used to supply hot air to the heating cavity 101 and the inside of the heat conduction tube 6; the heat supply mechanism includes a blower 8, a heating device 10 and a return pipe 13. The blower 8 and the heating device 10 are respectively installed inside chamber a 201 and chamber b 202. The output end of the blower 8 is communicated with the inside of chamber b 202, and its input end is communicated with the inside of the heating cavity 101. Both ends of the return pipe 13 are communicated with chamber b 202 and the heating cavity 101 respectively.

[0026] A temperature sensor is installed inside the chamber b202, and a controller is installed on the bottom box 2. The controller is electrically connected to both the temperature sensor and the heating device 10. The set temperature sensor can monitor the temperature inside the chamber b202 in real time and feedback the signal to the controller, and the set controller can adjust the heating temperature of the heating device 10.

[0027] The raw materials are put into the inner box 3 through the feed hopper 14, and then the set driving component is used to drive the rotation of a plurality of stirring rods 5, so as to realize the stirring of the raw materials. During this process, the set heat supply mechanism conveys hot air into the heating cavity 101 and the heat conduction tube 6. The hot air enters the heating cavity 101 for heating, so as to realize the heating of the outer wall of the inner box 3. The hot air entering the heat conduction tube 6 then flows into the inside of a plurality of stirring rods 5 through the rotating tube 4, and the heated stirring rods 5 can realize the heating of the inside of the raw materials to increase the heating area of the raw materials. After the reaction work is completed, the valve 12 can be opened, and the raw materials are discharged from the inside of the inner box 3 through the return pipe 13.

[0028] Embodiment 2

[0029] As Figure 3 shown, a polyether polymerization reaction device proposed in this embodiment, compared with Embodiment 1, in this embodiment, the driving component includes a rotating sleeve 7, a motor 15, a cam 16, a turntable 17, a bevel gear 18 and a bevel gear disc 19. Among them, the rotating sleeve 7 is rotatably installed at the top of the outer box 1, the rotating tube 4 is vertically slidably installed on the rotating sleeve 7, the motor 15 is installed on the outer box 1, both the bevel gear 18 and the cam 16 are connected to the output shaft of the motor 15, the bevel gear disc 19 is fixed on the rotating sleeve 7 and meshes with the bevel gear 18, the turntable 17 is connected to the upper end of the rotating tube 4, and the cam 16 contacts the bottom end of the turntable 17; The motor 15 is started to drive the cam 16 and the bevel gear 18 to rotate. The bevel gear 18 rotates to drive the bevel gear disc 19 to rotate, and then drives the rotating sleeve 7 to rotate. The rotating sleeve 7 rotates to drive the rotating tube 4 to rotate, and then drives the stirring rod 5 to rotate, thereby realizing the stirring work of the raw materials. During this process, the cam 16 rotates to drive the turntable 17 to move up and down reciprocally, and the turntable 17 drives the stirring rod 5 to move up and down reciprocally, so as to improve the stirring range of the stirring rod 5, thereby improving the stirring effect of the device.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A polyether polymerization reaction device, characterized in that: include: An outer box (1) and an inner box (3), wherein the inner box (3) is arranged on the inner side of the outer box (1), and a heating cavity (101) is formed between the inner box (3) and the outer box (1); A bottom box (2) disposed at the bottom end of the outer box (1); A stirring mechanism, the stirring mechanism comprising a rotating tube (4), a heat conducting tube (6), a driving assembly and a plurality of stirring rods (5), the heat conducting tube (6) being mounted at the bottom center of the inner box (3), the rotating tube (4) being rotatably mounted on the heat conducting tube (6), and the rotating tube (4) being connected to the heat conducting tube (6), the plurality of stirring rods (5) being mounted on the rotating tube (4), the stirring rods (5) having a hollow structure and being connected to the inside of the rotating tube (4), and the driving assembly being used for driving the rotating tube (4) to rotate; A heating mechanism is installed on the bottom box (2) and is used to transport hot air to the heating cavity (101) and the inside of the heat conducting pipe (6).

2. A polyether polymerization reaction device according to claim 1, characterized in that: The driving assembly comprises a rotating sleeve (7), a motor (15), a cam (16), a rotating disk (17), a bevel gear (18) and a bevel gear disk (19), wherein the rotating sleeve (7) is rotatably mounted on the top end of the outer box (1), the rotating tube (4) is vertically slidably mounted on the rotating sleeve (7), the motor (15) is mounted on the outer box (1), the bevel gear (18) and the cam (16) are both connected to the output shaft of the motor (15), the bevel gear disk (19) is fixed on the rotating sleeve (7) and meshes with the bevel gear (18), the rotating disk (17) is connected to the upper end of the rotating tube (4), and the cam (16) contacts the bottom end of the rotating disk (17).

3. A polyether polymerization reaction device according to claim 1, characterized in that: A partition (9) is provided on the inner side of the bottom box (2); the spaces separated by the two sides of the partition (9) are chamber a (201) and chamber b (202), respectively; the heat conducting pipe (6) is connected to the interior of chamber b (202); the heating mechanism comprises a blower (8), a heating device (10) and a return pipe (13); the blower (8) and the heating device (10) are respectively installed inside chamber a (201) and chamber b (202); the output end of the blower (8) is connected to the interior of chamber b (202), and the input end thereof is connected to the interior of the heating cavity (101); and the two ends of the return pipe (13) are respectively connected to chamber b (202) and the heating cavity (101).

4. A polyether polymerization reaction device according to claim 3, characterized in that: A temperature sensor is installed inside the chamber b (202), and a controller is installed on the bottom box (2). The controller is electrically connected to the temperature sensor and the heating device (10).

5. A polyether polymerization reaction device according to claim 1, characterized in that: The inner surface of the outer box (1) is provided with a heat insulation layer.

6. A polyether polymerization reaction device according to claim 1, characterized in that: A scraper rod (20) in contact with the inner wall of the inner box (3) is vertically arranged on the inner side thereof, and the scraper rod (20) is connected to the outer end of the stirring rod (5).

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