Reaction kettle for mixing materials for chlorinated polyethylene production

Abstract

The utility model belongs to the technical field of fixed reaction equipment, and particularly relates to a chlorinated polyethylene production material mixing reaction kettle which comprises a kettle body, a stirring shaft is arranged in the kettle body, the head end of the stirring shaft is connected with an output shaft of a driving motor, stirring blades are arranged on the stirring shaft, and extending blades are arranged on the stirring blades. According to the reaction kettle, the stirring blades are arranged in the kettle body, the length of the stirring blades is prolonged, the feeding pipes are arranged at the upper end of the kettle body, the feeding pipes in the kettle body downwards extend into the kettle body, the spraying heads or the material distributing pipes are arranged on the feeding pipes, and materials are uniformly sprayed to all positions of the kettle body under the action of the spraying heads or the material distributing pipes, so that the mixing efficiency of the materials in the reaction kettle is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of fixed reaction equipment, and in particular relates to a material mixing reactor for producing chlorinated polyethylene. Background Art

[0002] The production of chlorinated polyethylene includes multiple process steps such as chlorination, pickling, neutralization, and drying. Among them, chlorination is the first step in the production of chlorinated polyethylene. Various materials such as dispersants, emulsifiers, liquid chlorine, high-density vinyl chloride, water, etc. need to be added into the kettle and fully mixed in the kettle.

[0003] At present, the main factors affecting the mixing process are:

[0004] 1. The length of the stirring blade in the kettle is short. Because the size of the manhole on the kettle is small and affected by the diameter of the kettle, the long stirring blade is not easy to be installed on the stirring shaft in the kettle, resulting in a shorter stirring blade used in the kettle;

[0005] 2. The materials are directly introduced into the kettle through pipes, causing the materials to be concentrated in one area.

[0006] From the above-mentioned influencing factors, in order to improve the efficiency of material mixing in the kettle and ensure sufficient mixing of the raw materials, it is necessary to solve the problem of the size of the stirring blades and the distribution of the materials. Utility Model Content

[0007] In order to solve the above problems, the present application provides a material mixing reactor for producing chlorinated polyethylene.

[0008] The purpose of the present application is to provide a material mixing reactor for the production of chlorinated polyethylene, which improves the mixing efficiency of the materials in the reactor by extending the length of the stirring blades and installing a spray head or a distribution pipe on the feed pipe.

[0009] In order to achieve the purpose of this application, the technical solution of this application is:

[0010] A material mixing reactor for producing chlorinated polyethylene comprises a reactor body, a manhole is arranged on the reactor body, a stirring shaft is arranged in the reactor body, the head end of the stirring shaft is connected to the output shaft of a driving motor, a stirring blade is arranged on the stirring shaft, and an extension blade is arranged on the stirring blade. A plurality of feed pipes are arranged on the upper end of the reactor body, and the feed pipes inside the reactor body extend downward to the inside of the reactor body, and a spray head or a material distribution pipe is arranged on the feed pipe.

[0011] Furthermore, the stirring blades are arranged at the middle section and the lower section of the stirring shaft.

[0012] Furthermore, an outer shell is arranged on the outer wall of the kettle body, a cavity is formed between the outer shell and the kettle body, a liquid inlet pipe is arranged on the side of the outer shell, and a liquid outlet pipe is arranged at the bottom end of the outer shell.

[0013] Furthermore, a plurality of ribs are arranged on the outer wall of the kettle body.

[0014] Furthermore, a sampling tube is provided on the rib plate, and the sampling tube is arranged on the side wall of the kettle body and the bottom end of the kettle body.

[0015] Furthermore, a column is arranged at the lower end of the kettle body, and a weighing module is arranged at the lower end of the column.

[0016] Furthermore, a mounting tube is provided at the lower end of the kettle body, a temperature sensor is provided on the mounting tube, and a probe of the temperature sensor passes through the mounting tube and is arranged in the kettle body.

[0017] Furthermore, a fixed plate is arranged on the kettle body, a mechanical seal is arranged on the fixed plate, and the head end of the stirring shaft is connected to the mechanical seal.

[0018] Furthermore, the distance from the central axis of any feed pipe to the central axis of the kettle body is the same.

[0019] Furthermore, a sleeve is provided on the fixed plate, and the mechanical seal is arranged inside the sleeve.

[0020] Compared with the prior art, the beneficial effects of this application are:

[0021] 1. The present application divides the blades into stirring blades and extension blades. The shorter stirring blades and the shorter extension blades are assembled in the reactor body to form longer blades, thereby improving the mixing efficiency of the materials in the reactor.

[0022] 2. In the present application, a spray head or a distribution pipe is installed on the feed pipe inside the kettle body, so that the material enters the spray head or the distribution pipe from the feed pipe. Under the action of the spray head or the distribution pipe, the material is sprayed more evenly at various positions of the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0024] Figure 1 A schematic diagram of the structure of an implementation method of the present application;

[0025] Figure 2 This is a structural schematic diagram of another implementation method of the present application;

[0026] Figure 3 This is a top view of the present application.

[0027] In the figure:

[0028] 1. Kettle body, 2. Driving motor, 3. Mechanical seal, 4. Stirring blade, 5. Extension blade, 6. Rib, 7. Shell, 8. Cavity, 9. Liquid inlet pipe, 10. Spray head, 11. Distribution pipe, 12. Lateral sampling pipe, 13. Bottom sampling pipe, 14. Liquid outlet pipe, 15. Discharge end, 16. Weighing module, 17. Mounting pipe, 18. Feed pipe, 19. Manhole. DETAILED DESCRIPTION

[0029] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] In the present application, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present application, and do not specifically refer to any part or element in the present application and should not be understood as limitations on the present application.

[0032] Example 1

[0033] The present embodiment is a reaction kettle for mixing materials for the production of chlorinated polyethylene. In the kettle body 1, the added materials are fully mixed and stirred to improve the mixing efficiency. In the present embodiment, the added materials include dispersants, emulsifiers, liquid chlorine, high-density vinyl chloride, water and other materials. During the mixing process, there is a heat change, which affects the internal temperature of the kettle body 1 and also generates waste gas. Therefore, the present embodiment needs to reserve multiple pipelines. Figure 1-Figure 3 The specific structure of the reaction vessel will be described.

[0034] The reaction kettle for material mixing includes a kettle body 1, which has a manhole 19, on which a sealing cover is installed. The function of the manhole 19 is to ensure that personnel can enter the interior of the kettle body 1, and then perform maintenance and install parts inside the kettle body 1. Specifically, the manhole 19 is arranged at the upper end cover or the upper end of the side wall of the kettle body 1. As a stirring structure, a stirring shaft is installed in the kettle body 1, and the head end of the stirring shaft protrudes from the upper end of the kettle body 1. The head end of the stirring shaft is connected to the output shaft of the driving motor 2. As a specific connecting structure, the head end of the stirring shaft is connected to the output shaft of the driving motor 2 through a coupling. The kettle body 1 has a fixed plate, on which a mechanical seal 3 is installed, and the head end of the stirring shaft is connected to the mechanical seal 3. A sleeve is installed on the fixed plate, and the sleeve is installed with the fixed plate by bolts. The mechanical seal 3 is arranged inside the sleeve. In addition, a bearing and a bearing seat are also installed inside the sleeve, and the outer periphery of the stirring shaft is connected to the inner periphery of the bearing.

[0035] The stirring shaft of the present embodiment is provided with a stirring blade 4, and the stirring blade 4 is provided with an extension blade 5. The present embodiment adopts a shorter extension blade 5 and a stirring blade 4, and the extension blade 5 and the stirring blade 4 are fixedly connected together by bolts to form a longer blade. The shorter extension blade 5 and the stirring blade 4 can smoothly pass through the manhole 19 and be smoothly installed inside the kettle body 1. In addition, a plurality of feed pipes 18 are installed at the upper end of the kettle body 1, and the feed pipes 18 extend downward to the inside of the kettle body 1. The feed pipes 18 are provided with a spray head 10 or a distribution pipe 11, such as Figure 1 As shown, a spray head 10 is mounted on the feed pipe 18. Figure 2 As shown, a material distribution pipe 11 is installed on the feed pipe 18. Figure 3 As shown, the distance from the central axis of any feed pipe 18 to the central axis of the kettle body 1 is the same, that is, the central axis of the feed pipe 18 is arranged on a circle, and the circle takes the central axis of the stirring shaft as the center. Figure 3 A plugging head is installed on the middle feed pipe 18, and the plugging head needs to be removed when the feed pipe 18 is used. In this embodiment, a plurality of spare pipe openings can be reserved for installing sensors, pressure gauges and other equipment. A discharge end 15 is installed at the lower end of the kettle body 1, and the discharge end 15 includes a discharge pipe, and a control valve is installed on the discharge pipe.

[0036] It should be noted that the size of the discharge hole on the spray head 10 or the material distribution pipe 11 is relatively large so that the material can smoothly pass through the discharge hole on the spray head 10 or the material distribution pipe 11.

[0037] As an implementation scheme, since the material fills about two-thirds of the internal space of the kettle body 1, the installation position of the blades is: the stirring blades 4 are arranged at the middle and lower sections of the stirring shaft, and the stirring shaft is regarded as a whole section, and the middle and lower sections refer to the downward position of the center of the stirring shaft. Since the extension blades 5 are connected to the stirring blades 4, in addition, the temperature of the workshop is greatly affected by the environment. In this embodiment, a shell 7 can be installed on the outer wall of the kettle body 1, and a cavity 8 is formed between the shell 7 and the kettle body 1. A liquid inlet pipe 9 is installed on the side of the shell 7, and a liquid outlet pipe 14 is installed at the bottom of the shell 7. By injecting water at a suitable temperature, it is ensured that the inside of the kettle body 1 has a suitable temperature.

[0038] The outer wall of the kettle body 1 of this embodiment has a plurality of ribs 6, and sampling tubes are installed on the ribs 6. The sampling tubes are arranged on the side walls of the kettle body 1 and the bottom end of the kettle body 1. For example, the sampling tubes of this embodiment include a lateral sampling tube 12 and a bottom sampling tube 13, and the liquid at various positions is sampled and tested through the sampling tubes.

[0039] In this embodiment, a mounting tube 17 is installed at the lower end of the kettle body 1 , and a temperature sensor is installed on the mounting tube 17 . The probe of the temperature sensor passes through the mounting tube 17 and is arranged in the kettle body 1 , so that the probe of the temperature sensor is arranged at the lower end inside the kettle body 1 .

[0040] In this embodiment, three columns are installed at the lower end of the kettle body 1, and a weighing module 16 is installed at the lower end of the column. The weighing module 16 can be used to weigh and calculate the materials entering the kettle body 1, and then the materials can be proportioned.

[0041] In this embodiment, water may be introduced first, so that the water enters the feed pipe 18 first, and then other materials, such as dispersants, etc., are introduced, and finally water is introduced to flush the materials in the feed pipe 18.

[0042] As a more specific embodiment, various pipes, such as the feed pipe 18, the installation pipe 17 and other pipes, use quick-release joints as the joints.

[0043] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0044] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A reaction kettle for mixing materials for producing chlorinated polyethylene, comprising a kettle body (1), a manhole (19) being provided on the kettle body (1), characterized in that: A stirring shaft is arranged in the kettle body (1), the head end of the stirring shaft is connected to the output shaft of the driving motor (2), a stirring blade (4) is arranged on the stirring shaft, and an extension blade (5) is arranged on the stirring blade (4); A plurality of feed pipes (18) are arranged at the upper end of the kettle body (1), and the feed pipes (18) extend downward into the interior of the kettle body (1). Spray heads (10) or material distribution pipes (11) are arranged on the feed pipes (18) inside the kettle body (1).

2. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 1, characterized in that: The stirring blades (4) are arranged at the middle section and the lower section of the stirring shaft.

3. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 2, characterized in that: An outer shell (7) is provided on the outer wall of the kettle body (1), a cavity (8) is formed between the outer shell (7) and the kettle body (1), a liquid inlet pipe (9) is provided on the side of the outer shell (7), and a liquid outlet pipe (14) is provided at the bottom end of the outer shell (7).

4. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 1, characterized in that: A plurality of ribs (6) are provided on the outer wall of the kettle body (1).

5. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 4, characterized in that: The rib plate (6) is provided with a sampling tube, and the sampling tube is arranged on the side wall of the kettle body (1) and the bottom end of the kettle body (1).

6. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 1, characterized in that: A column is provided at the lower end of the kettle body (1), and a weighing module (16) is provided at the lower end of the column.

7. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 1, characterized in that: A mounting tube (17) is provided at the lower end of the kettle body (1), a temperature sensor is provided on the mounting tube (17), and a probe of the temperature sensor passes through the mounting tube (17) and is arranged in the kettle body (1).

8. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 1, characterized in that: The kettle body (1) is provided with a fixed plate, the fixed plate is provided with a mechanical seal (3), and the head end of the stirring shaft is connected to the mechanical seal (3).

9. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 1, characterized in that: The distance between the central axis of any feed pipe (18) and the central axis of the kettle body (1) is the same.

10. A material mixing reaction kettle for producing chlorinated polyethylene as claimed in claim 8, characterized in that: The fixed plate is provided with a sleeve, and the mechanical seal (3) is arranged inside the sleeve.

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