Degassing kettle for preparing carboxylic butadiene-acrylonitrile latex

Abstract

The utility model discloses a degassing kettle for preparing carboxylated butyronitrile latex, and particularly relates to the technical field of degassing kettles, which comprises a frame component, a degassing kettle component is arranged in the frame component, the frame component comprises a bottom plate, an arched frame is fixedly mounted on the top surface of the bottom plate, and the bottom plate is fixedly mounted on the frame. Two stopping plates are fixedly installed on the bottom face of the horizontal part of the arched rack, a second sliding groove is formed in the top face of the bottom plate, and a second sliding block is slidably installed in the second sliding groove. According to the degassing kettle for preparing the carboxylic butadiene-acrylonitrile latex, slurry can be stirred through synchronous rotation of the multiple stirrers, the degassing speed is increased, meanwhile, the stirring speed is increased, and meanwhile the stirring speed is increased. In order to improve the stirring and degassing efficiency, the whole degassing kettle assembly can integrally move back and forth in a reciprocating manner while the stirrer stirs the slurry, so that the slurry in the reaction cavity is shaken, the stirring efficiency is effectively improved, the degassing rate is improved, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of degassing reactor technology, specifically a degassing reactor for preparing carboxylated butadiene nitrile latex. Background Technology

[0002] Carboxylated nitrile latex is an anionic polymer emulsion. This latex has a relatively uniform molecular weight and particle size distribution, is resistant to oil, solvents, acids, and alkalis, and can crosslink with sulfur and metal oxides. Its stability is superior to that of natural latex.

[0003] In the production process of nitrile latex, it is necessary to degas the latex slurry to improve the smooth and delicate appearance of the latex and the stable quality of the finished product. In the existing technology, degassing kettles are mostly used to degas the latex slurry.

[0004] For example, Chinese patent publication number CN216418407U discloses a degassing reactor for preparing nitrile rubber latex, including a reactor body and a reactor lid. The reactor body has three partitions in its tank, dividing the tank into a primary degassing chamber, a secondary degassing chamber, a tertiary degassing chamber, and a quaternary degassing chamber. The primary and secondary degassing chambers are connected by a first outlet pipe; the secondary and tertiary degassing chambers are connected by a second outlet pipe; the tertiary and quaternary degassing chambers are connected by a third outlet pipe; and the quaternary degassing chamber is connected to a fourth outlet pipe. The reactor lid is located at the top of the reactor body, with a motor fixed to its top and a stirring shaft positioned below it. The top of the stirring shaft is fixed to the rotor of the motor. The stirring shaft passes through the center of the three partitions and is rotatably connected to each partition via three bearings. Each stage of the degassing chamber has several stirring rods mounted on its stirring shaft. This invention has the function of continuous, staged degassing.

[0005] However, the degassing kettle used for preparing nitrile latex still has some shortcomings in actual use. For example, it only uses a stirrer for stirring, so the stirring efficiency is generally low, the degassing rate is low, and there are cases where the slurry is not stirred, resulting in poor degassing effect. Utility Model Content

[0006] The purpose of this invention is to provide a degassing reactor for preparing carboxylated butadiene nitrile latex, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a degassing autoclave for preparing carboxylated nitrile latex, comprising a frame assembly, wherein a degassing autoclave assembly is disposed within the frame assembly, the frame assembly includes a base plate, an arched frame is fixedly mounted on the top surface of the base plate, two baffles are fixedly mounted on the bottom surface of the horizontal portion of the arched frame, a second sliding groove is provided on the top surface of the base plate, and a second slider is slidably mounted within the second sliding groove;

[0008] The degassing vessel assembly includes a vessel shell, a perforated sealing plate frame fixedly installed in the middle of the top surface of the vessel shell, a dual-shaft motor fixedly installed on the top surface of the perforated sealing plate frame, a top shaft and a stirring shaft fixedly connected to the two output shafts of the dual-shaft motor respectively, a cam fixedly sleeved on the shaft of the top shaft, a feed pipe fixedly installed in the center of the bottom surface of the vessel shell, and a second slider fixedly sleeved on the body of the feed pipe.

[0009] Preferably, a reaction chamber is provided inside the vessel shell, and interactive openings are provided on both sides of the top surface of the vessel shell, and a feed pipe is provided at the front of the top surface of the vessel shell.

[0010] Preferably, the shaft of the stirring shaft is located inside the reaction chamber, and several stirrers are fixedly sleeved on the shaft of the stirring shaft from top to bottom.

[0011] Preferably, a first sliding groove is formed on the top surface of the horizontal portion of the arched frame, and a first slider is slidably installed in the first sliding groove.

[0012] Preferably, the top end of the top shaft is rotatably connected to the bottom surface of the first slider.

[0013] Preferably, the cam is located between two abutment plates.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The degassing vessel used for preparing carboxylated nitrile butadiene latex can stir the slurry by rotating several agitators simultaneously, thereby increasing the degassing rate. At the same time, in order to improve the stirring and degassing efficiency, the entire degassing vessel assembly can be moved back and forth as the agitators stir the slurry, thereby shaking the slurry in the reaction chamber, which effectively improves the stirring efficiency and degassing rate, making it more practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the frame assembly of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the degassing reactor assembly of this utility model.

[0019] In the diagram: 1. Frame assembly; 101. Base plate; 102. Arched frame; 103. No. 1 chute; 104. No. 1 slider; 105. Baffle plate; 106. No. 2 chute; 107. No. 2 slider; 2. Degassing vessel assembly; 201. Vessel shell; 202. Reaction chamber; 203. Interchange port; 204. Feed pipe; 205. Perforated sealing plate frame; 206. Dual-shaft motor; 207. Top shaft; 208. Cam; 209. Stirring shaft; 210. Stirrer; 211. Discharge pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-3 As shown, this utility model provides a technical solution: it includes a frame assembly 1, in which a degassing vessel assembly 2 is provided. The frame assembly 1 includes a base plate 101, and an arched frame 102 is fixedly installed on the top surface of the base plate 101. Two baffle plates 105 are fixedly installed on the bottom surface of the horizontal part of the arched frame 102. A second sliding groove 106 is opened on the top surface of the base plate 101, and a second slider 107 is slidably installed in the second sliding groove 106.

[0022] The degassing vessel assembly 2 includes a vessel shell 201. A perforated sealing plate frame 205 is fixedly installed on the center of the top surface of the vessel shell 201. A dual-shaft motor 206 is fixedly installed on the top surface of the perforated sealing plate frame 205. The two output shafts of the dual-shaft motor 206 are respectively fixedly connected to a top shaft 207 and a stirring shaft 209. A cam 208 is fixedly sleeved on the shaft of the top shaft 207. The cam 208 is located between two baffle plates 105. Between 5, the protruding end of the cam 208 will periodically contact the inner side of the two baffles 105. When the protruding end of the cam 208 contacts the inner side of one baffle 105, as the cam 208 rotates, the kettle shell 201 will move towards the other baffle 105. In turn, the rotation of the cam 208 will cause the entire degassing kettle assembly 2 to shake back and forth periodically. In this cycle, the latex slurry at the bottom of the kettle is circulated, shaken and stirred to achieve the function of rapid degassing.

[0023] A feeding pipe 211 is fixedly installed at the center of the bottom surface of the reactor shell 201, and the second slider 107 is fixedly sleeved on the body of the feeding pipe 211.

[0024] In this embodiment, a reaction chamber 202 is provided inside the vessel shell 201, and an interaction port 203 is provided on both sides of the top surface of the vessel shell 201. A feed pipe 204 is provided at the front of the top surface of the vessel shell 201.

[0025] The shaft of the stirring shaft 209 is located inside the reaction chamber 202. Several agitators 210 are fixedly sleeved on the shaft of the stirring shaft 209 from top to bottom. The rotation of the stirring shaft 209 can drive the several agitators 210 fixedly sleeved on it to rotate. The synchronous rotation of several agitators 210 can stir the slurry and increase the degassing rate.

[0026] The top surface of the horizontal part of the arched frame 102 has a first sliding groove 103, and a first slider 104 is slidably installed in the first sliding groove 103. The top end of the top shaft 207 is rotatably connected to the bottom surface of the first slider 104, thereby improving the reciprocating stability of the degassing vessel assembly 2.

[0027] During use, in the degassing process, the latex slurry is added into the interior of the reactor shell 201 through the feed pipe 204. After pouring, the dual-shaft motor 206 can be started. The dual-shaft motor 206 drives the stirring shaft 209 and the top shaft 207 to rotate. The rotation of the stirring shaft 209 drives several agitators 210 fixedly sleeved on it to rotate. The synchronous rotation of several agitators 210 can stir the slurry and increase the degassing rate. At the same time, in order to improve the stirring degassing efficiency, the entire degassing reactor assembly 2 can be moved back and forth as the agitators 210 stir the slurry, thereby causing the slurry in the reaction chamber 202 to shake, thus effectively improving the stirring efficiency and increasing the efficiency of degassing. The degassing rate and specific shaking steps are as follows: The top shaft 207 rotates, which causes the cam 208 fixedly sleeved on it to rotate. Since the cam 208 is located between the two baffles 105, the protruding end of the cam 208 will periodically contact the inner side of the two baffles 105. When the protruding end of the cam 208 contacts the inner side of one baffle 105, as the cam 208 rotates, the vessel shell 201 will move towards the other baffle 105. In turn, the rotation of the cam 208 will cause the entire degassing vessel assembly 2 to shake back and forth periodically. This cycle is repeated to achieve the function of circulating and stirring the latex slurry at the bottom of the vessel to achieve rapid degassing.

[0028] In summary, the degassing vessel for preparing carboxylated nitrile rubber latex can agitate the slurry by having several agitators 210 rotate synchronously, thereby increasing the degassing rate. At the same time, in order to improve the agitation and degassing efficiency, the entire degassing vessel assembly 2 can be moved back and forth as a whole while the agitators 210 are agitating the slurry, thereby causing the slurry in the reaction chamber 202 to shake, thus effectively improving the agitation efficiency and degassing rate, making it more practical.

[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 degassing reactor for preparing carboxylated butadiene nitrile latex, characterized in that... The device includes a frame assembly (1), in which a degassing vessel assembly (2) is provided. The frame assembly (1) includes a base plate (101), and an arched frame (102) is fixedly installed on the top surface of the base plate (101). Two baffles (105) are fixedly installed on the bottom surface of the horizontal part of the arched frame (102). A second sliding groove (106) is opened on the top surface of the base plate (101), and a second slider (107) is slidably installed in the second sliding groove (106). The degassing vessel assembly (2) includes a vessel shell (201). A perforated sealing plate frame (205) is fixedly installed in the middle of the top surface of the vessel shell (201). A dual-shaft motor (206) is fixedly installed on the top surface of the perforated sealing plate frame (205). The two output shafts of the dual-shaft motor (206) are respectively fixedly connected to a top shaft (207) and a stirring shaft (209). A cam (208) is fixedly sleeved on the shaft of the top shaft (207). A feed pipe (211) is fixedly installed at the center of the bottom surface of the vessel shell (201). The second slider (107) is fixedly sleeved on the body of the feed pipe (211).

2. The degassing reactor for preparing carboxylated butadiene nitrile latex according to claim 1, characterized in that, The reactor shell (201) has a reaction chamber (202) inside, and the top surface of the reactor shell (201) has an interaction port (203) on both sides. The top front of the reactor shell (201) is provided with a feed pipe (204).

3. The degassing reactor for preparing carboxylated butadiene nitrile latex according to claim 1, characterized in that, The shaft of the stirring shaft (209) is located inside the reaction chamber (202), and several stirrers (210) are fixedly sleeved on the shaft of the stirring shaft (209) from top to bottom.

4. The degassing reactor for preparing carboxylated butadiene nitrile latex according to claim 1, characterized in that, A first groove (103) is provided on the top surface of the horizontal part of the arched frame (102), and a first slider (104) is slidably installed in the first groove (103).

5. A degassing reactor for preparing carboxylated butadiene nitrile latex according to claim 4, characterized in that, The top end of the top shaft (207) is rotatably connected to the bottom surface of the first slider (104).

6. A degassing reactor for preparing carboxylated butadiene nitrile latex according to claim 1, characterized in that, The cam (208) is located between two abutment plates (105).

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