Polymer devolatilization equipment

Abstract

The utility model relates to the technical field of polymer devolatilization equipment, in particular to polymer devolatilization equipment which comprises a reaction box body, a reaction inner container is arranged in the reaction box body, a fixed base is arranged at the bottom of the reaction box body, a liquid inlet pipe is arranged at the top of the reaction box body, an electric control valve is installed on the liquid inlet pipe, and a liquid outlet pipe is installed on the electric control valve. A heating pipe is distributed on the outer side of the reaction inner container in a surrounding mode, a rotating motor is embedded in the fixed base, the effect of improving the fluidity and the reaction of the polymer can be achieved through all-directional stirring, and the effect that the occupied area of the device is small is achieved; the heating pipes distributed on the outer side of the reaction inner container in a surrounding mode evenly heat polymers in the reaction box body, generation of local high-temperature points is effectively reduced, and volatile matter with the molecular weight can be effectively collected by collecting the volatile matter through the filter cylinder body.

Description

Technical Field

[0001] This utility model relates to the technical field of polymer devolatilization equipment, specifically a polymer devolatilization device. Background Technology

[0002] Polymer devolatilization is a process for separating low molecular weight components from a polymer system. These low molecular weight components include unreacted monomers, solvents, and various polymerization byproducts, which are generally referred to as volatiles and are components that should not be present in the polymer.

[0003] For polymers with high fluidity, in actual production, pipelines are often used to connect equipment in series to achieve a continuous multi-stage devolatilization process. The equipment occupies a large area, and the current devolatilization process uses heaters for local heating, which easily forms local hot spots with high temperature, causing high-temperature decomposition of polymer. In addition, the polymer reaction within the equipment is not sufficient, affecting the devolatilization effect.

[0004] Therefore, it is particularly important to design a polymer devolatilization device to overcome the above-mentioned technical defects and improve its overall practicality. Utility Model Content

[0005] The purpose of this invention is to provide a polymer devolatilization device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A polymer devolatilization device includes a reaction chamber with an inner reaction liner inside. A fixed base is located at the bottom of the reaction chamber, and an inlet pipe with an electrically controlled valve is located at the top. Heating tubes are distributed around the outer side of the inner reaction liner. A rotary motor is embedded inside the fixed base. The output end of the rotary motor passes through the bottom of the inner reaction liner and is connected to a rotating screw. A screw sleeve is threaded onto the outer side of the rotating screw. Sliding rods are fixed to the bottom inner side of the inner reaction liner on both sides of the rotating screw. A sliding seat is slidably connected to the outer side of the sliding rod. Hollowed-out stirring blades are rotatably connected to the front and rear sides of the screw sleeve and the outer side of the sliding seat. An exhaust pipe is connected to the top right side of the reaction chamber. Multiple filter cylinders are connected to the exhaust end of the exhaust pipe. A filter liner is located inside each filter cylinder. A cooling water pipe is coiled around the outer side of the topmost filter liner, and a filter screen is installed inside the filter liner.

[0008] As a preferred embodiment of this utility model, a control panel is provided on the outside of the reaction chamber, wherein the control panel is connected to the electric control valve, the heating tube and the rotary motor by wires, and the connection is electrical.

[0009] As a preferred embodiment of this utility model, the fixed base has a groove for mounting a rotary motor inside, and the bottom end of the rotary screw is rotatably connected to the inside of the reaction vessel through a bearing seat.

[0010] As a preferred embodiment of this utility model, both the left and right ends of the screw sleeve are fixedly connected to the corresponding sliding blocks.

[0011] As a preferred embodiment of this utility model, the left end of the exhaust pipe penetrates the interior of the reaction liner.

[0012] As a preferred embodiment of this utility model, the multiple sets of filter cylinders are connected by bolts, and the multiple sets of filter cylinders are designed to be separable.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, a polymer devolatilization device is provided, which can increase the fluidity and reaction of the polymer through all-round stirring. The device has a small footprint. The heating tubes distributed around the outside of the reaction chamber evenly heat the polymer in the reaction chamber, effectively reducing the generation of local high temperature points. Furthermore, the volatiles can be effectively collected by the filter cylinder. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This is a partial internal view of the overall structure of this utility model;

[0017] Figure 3 This is an internal view of the overall structure of this utility model.

[0018] In the diagram: 1. Reaction chamber; 101. Reaction liner; 102. Fixed base; 103. Liquid inlet pipe; 104. Electrically controlled valve; 105. Heating tube; 2. Rotary motor; 201. Rotary screw; 202. Screw sleeve; 203. Slide rod; 204. Slide seat; 205. Hollowed-out stirring blade; 3. Exhaust pipe; 4. Filter cylinder; 401. Filter liner; 402. Cooling water pipe; 403. Filter screen; 404. Water collection base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] A polymer devolatilization device includes a reaction chamber 1, an inner reaction liner 101 inside the reaction chamber 1, a fixed base 102 at the bottom of the reaction chamber 1, an inlet pipe 103 at the top of the reaction chamber 1, an electrically controlled valve 104 installed on the inlet pipe 103, heating tubes 105 distributed around the outer side of the inner reaction liner 101, a rotary motor 2 embedded inside the fixed base 102, an exhaust pipe 3 connected to the top right side of the reaction chamber 1, multiple sets of filter cylinders 4 connected to the exhaust end of the exhaust pipe 3, an inner filter liner 401 inside the filter cylinder 4, a cooling water pipe 402 coiled around the outer side of the topmost inner filter liner 401, and a filter screen 403 installed inside the inner filter liner 401.

[0025] The fixed base 102 has a groove for mounting the rotary motor 2. The bottom end of the rotating screw 201 is rotatably connected to the inside of the reaction liner 101 through the bearing seat. The left end of the exhaust pipe 3 passes through the inside of the reaction liner 101. The multiple filter cylinders 4 are connected by bolts. The multiple filter cylinders 4 are designed to be separable, which is convenient for disassembly and collection of molecular substances.

[0026] In this embodiment, please refer to Figure 3 The output end of the rotary motor 2 passes through the bottom of the reaction liner 101 and is connected to a rotary screw 201. A screw sleeve 202 is threaded onto the outer side of the rotary screw 201. Slide rods 203 are fixed at the bottom of the inner side of the reaction liner 101 and on both the left and right sides of the rotary screw 201. A slide seat 204 is slidably connected to the outer side of the slide rod 203. Hollowed-out stirring blades 205 are rotatably connected to the front and rear sides of the screw sleeve 202 and the outer side of the slide seat 204.

[0027] The reaction chamber 1 is equipped with a control panel on its outer side. The control panel is connected to the electric control valve 104, the heating tube 105, and the rotary motor 2 by wires, and the connection is electrical. The left and right ends of the screw sleeve 202 are fixedly connected to the corresponding slide seat 204.

[0028] The working process of this utility model is as follows: The polymer devolatilization device delivers liquid polymer into the reaction tank 101 through the inlet pipe 103. After feeding is complete, the electric control valve 104 is closed, and the heating tube 105 and rotary motor 2 are opened sequentially. Cold water is then introduced through the cooling water pipe 402. The surrounding heating tubes 105 begin heating the polymer. Simultaneously, the rotary motor 2 drives the rotating screw 201 to rotate. With the cooperation of the sliding rod 203 and the sliding seat 204, the screw sleeve 202 moves up and down. During this movement, four sets of hollowed-out stirring blades 20... 5. Stirring the polymer increases its fluidity, allowing it to be heated evenly and begin to volatilize. The volatile molecules generated by heating reach the filter cylinder 4 through the exhaust pipe 3. The filter inner liner in the top filter cylinder 4 is cooled by the cooling water pipe 402, causing the volatile molecules to become liquid and drip onto the filter screen 403 in the filter cylinder 4. Multiple filter screens 403 can collect substances of different molecular weights, and the filter cylinder 4 can be separated to facilitate the collection of molecular substances. The final liquid will collect in the water collection base 404.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polymer devolatilization apparatus, comprising a reaction chamber (1), characterized in that: The reaction chamber (1) is equipped with a reaction liner (101) inside. A fixed base (102) is provided at the bottom of the reaction chamber (1). An inlet pipe (103) is provided at the top of the reaction chamber (1). An electric control valve (104) is installed on the inlet pipe (103). Heating tubes (105) are distributed around the outside of the reaction liner (101). A rotary motor (2) is embedded inside the fixed base (102). The output end of the rotary motor (2) passes through the bottom of the reaction liner (101) and is connected to a rotary screw (201). A screw sleeve (202) is threaded onto the outside of the rotary screw (201). The bottom of the inner side of the reaction liner (101) is located at the rotary screw (201). Both sides of the reaction chamber (1) are fixed with sliding rods (203). The outer side of the sliding rods (203) is slidably connected with sliding seats (204). The front and rear sides of the screw sleeve (202) and the outer side of the sliding seats (204) are rotatably connected with hollow stirring blades (205). The top right side of the reaction chamber (1) is connected with an exhaust pipe (3). The exhaust end of the exhaust pipe (3) is connected with multiple sets of filter cylinders (4). The filter cylinder (4) is provided with a filter inner liner (401). The outer side of the top filter inner liner (401) is wrapped with a cooling water pipe (402). The filter inner liner (401) is installed with a filter screen (403). The bottom of the bottom filter cylinder (4) is installed with a water collection seat (405).

2. The polymer devolatilization device according to claim 1, characterized in that: The reaction chamber (1) is equipped with a control panel on its outside. The control panel is connected to the electric control valve (104), the heating tube (105), and the rotary motor (2) by wires, and the connection is electrical.

3. The polymer devolatilization device according to claim 1, characterized in that: The fixed base (102) has a groove for mounting the rotary motor (2) inside, and the bottom end of the rotary screw (201) is rotatably connected to the inside of the reaction liner (101) through a bearing seat.

4. The polymer devolatilization device according to claim 1, characterized in that: Both ends of the screw sleeve (202) are fixedly connected to the corresponding slide block (204).

5. The polymer devolatilization device according to claim 1, characterized in that: The left end of the exhaust pipe (3) penetrates the interior of the reaction liner (101).

6. The polymer devolatilization device according to claim 1, characterized in that: The multiple sets of filter cylinders (4) are connected by bolts, and the multiple sets of filter cylinders (4) are designed to be separable.

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