Butadiene rubber coagulation kettle baffle plate

Abstract

The utility model relates to a butadiene rubber coagulation kettle baffle plate, which belongs to the field of coagulation kettle equipment, and comprises a kettle wall, a plurality of triangular baffle plates and an inner hole, the triangular baffle plates are arranged on the kettle wall according to specific conditions, the triangular baffle plates are triangular prism-shaped, and compared with a veneer-shaped baffle plate, the surface is an inclined surface, so that the inner hole is formed in the inner hole. The inner hole is formed in the triangular baffle plate and penetrates through the triangular baffle plate, and from the perspective of physics, glue liquid belongs to viscous fluid, so that the flow velocity is slow when the glue liquid is in contact with a wall, and the glue liquid is prevented from being scraped by the wall when the glue liquid is in contact with the wall; and after the baffle plate is provided with the hole, the fluid is shunted due to the hole when passing through the baffle plate, so that the flow speed is accelerated, the phenomenon of glue hanging can be better reduced, the fluid impact is reduced, and the operation period of the condensation kettle is prolonged.

Description

Technical Field

[0001] The utility model relates to a baffle plate for a butadiene rubber coagulation kettle and belongs to the field of coagulation kettle equipment. Background Art

[0002] At present, the coagulation unit of the butadiene rubber device uses the water precipitation coagulation method to separate the rubber from the solvent oil and other materials in the rubber solution. The process is as follows: the rubber solution sent from the rubber tank unit contains only a few percent of butadiene rubber liquid, most of which is solvent oil, and also contains a small amount of unreacted butadiene and residual catalysts. The rubber solution enters the coagulation unit and is first mixed with hot water in a static mixer, and then enters the coagulation kettle. Under the action of mechanical stirring, the rubber solution dispersed in droplets is fully in contact with the hot water. Since the temperature of the hot water is much higher than the vaporization temperature of the solvent oil and butadiene, the solvent oil and butadiene are vaporized from the rubber particles. The vaporized material is condensed into liquid in the condenser on the top of the kettle, forming a certain pressure difference with the coagulation kettle, so as to achieve the purpose of removing the solvent oil. At this time, the droplets without solvent are insoluble in water and become solid rubber particles precipitated from the rubber solution, so as to achieve the coagulation of the rubber solution and the removal of the solvent.

[0003] In order to increase the degree of turbulence at each underwater point in the kettle and prevent the adhesion of rubber particles to the wall of the condensation kettle due to local water stagnation, a number of evenly distributed baffles are designed in the wall of the condensation kettle. As the operation cycle increases, rubber particles continue to adhere to the baffles, and their volume continues to grow to become large rubber blocks, affecting the function of the baffles, ultimately leading to serious rubber adhesion in the kettle and shortening the operation cycle of the condensation kettle. Summary of the invention

[0004] According to the problem described in the background, the problem to be solved by the utility model is: to provide a baffle for a butadiene rubber coagulation kettle, to transform the baffle form, to reduce rubber hanging, and to extend the operation cycle.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a baffle of a butadiene rubber coagulation kettle is provided, comprising a kettle wall, a triangular baffle and an inner hole. The triangular baffle is arranged on the kettle wall, and a plurality of triangular baffles can be arranged according to specific circumstances. The triangular baffle is in the shape of a triangular prism. Compared with a single-plate baffle, the surface of the baffle is an inclined surface, so there will be no glue hanging after the water flow hits it. The fluid will generate forces in other directions due to the inclined surface, so the fluid will be in a state of continuous motion. The inner hole is opened on the triangular baffle and passes through the triangular baffle. From a physical point of view, the glue liquid is a viscous fluid, so the flow rate is slow when it contacts the wall. After the hole is opened on the baffle, the fluid will be diverted due to the hole when passing through here, resulting in an accelerated flow rate, which can better reduce the glue hanging phenomenon.

[0006] All the edges and corners of the triangular baffle are rounded, and the absence of edges and corners will reduce the phenomenon of glue sticking. The material is made of stainless steel with a surface roughness of Ra<0.8um. ​​The material has lower friction, greatly reduces the phenomenon of glue sticking, and improves the service life.

[0007] The inner hole diameter is smaller than one third of the triangular side of the triangular baffle, which can ensure that the service life of the triangular baffle will not be reduced too much due to the hole.

[0008] The beneficial effects of the utility model are as follows: after the baffle is changed to a triangular style, the fluid impact can be reduced, the holes in the baffle can play a role of diversion, which can effectively reduce the phenomenon of colloid particles hanging on the wall in the coagulation kettle and extend the operation cycle of the coagulation kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 for Figure 1 A front view of

[0011] In the figure: 1 is the kettle wall; 2 is the triangular baffle; 3 is the inner hole. DETAILED DESCRIPTION

[0012] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0013] Example 1

[0014] like Figure 1-2 As shown, the utility model includes a kettle wall 1, a triangular baffle 2 and an inner hole 3. The triangular baffle 2 is arranged on the kettle wall. The triangular baffle 2 is in the shape of a triangular prism. Compared with a single-plate baffle, the surface of the triangular baffle 2 is an inclined surface, so there will be no glue hanging after the water flow hits it. The fluid will generate forces in other directions due to the inclined surface, so the fluid will be in a state of continuous movement. The inner hole 3 is opened on the triangular baffle 2 and penetrates the triangular baffle 2. From a physical point of view, the glue is a viscous fluid, so the flow rate is slow when it contacts the wall. After the hole is opened on the baffle, the fluid will be diverted due to the hole when passing through here, resulting in a faster flow rate, which can better reduce the glue hanging phenomenon.

[0015] All the edges and corners of the triangular baffle 2 are rounded, and the absence of edges and corners will reduce the glue sticking phenomenon. The material is made of stainless steel with a surface roughness of Ra<0.8um. ​​The material has less friction, greatly reduces the glue sticking phenomenon, and improves the service life.

[0016] The diameter of the inner hole 3 is smaller than one third of the triangular side of the triangular baffle 2, which can ensure that the service life of the triangular baffle 2 will not be reduced too much due to the hole.

Claims

1. A baffle for a polybutadiene rubber coagulation kettle, characterized in that: The invention comprises a kettle wall (1), a triangular baffle (2) and an inner hole (3). The triangular baffle (2) is arranged on the kettle wall and is in the shape of a triangular prism. The inner hole (3) is opened on the triangular baffle (2) and penetrates the triangular baffle (2).

2. A baffle plate for a polybutadiene rubber coagulation reactor according to claim 1, characterized in that: All the corners of the triangular baffle (2) are rounded, and the material is stainless steel with a surface roughness Ra<0.8um.

3. The baffle plate of the polybutadiene rubber coagulation kettle according to claim 1, characterized in that: The diameter of the inner hole (3) is smaller than one third of the triangular side of the triangular baffle (2).

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