Device for preventing polymerization kettle stirring shaft from self-polymerization

Abstract

The utility model provides a device for preventing self-aggregation of a stirring shaft of a polymeric kettle, which belongs to the technical field of chemical production, solves the problem of self-aggregation of the stirring shaft in the production process of the polymeric kettle, and comprises a fixed shaft sleeve and a rapping mechanism, the rapping mechanism is arranged on the outer wall of the fixed shaft sleeve and comprises two bearing mounting seats, and the bearing mounting seats are arranged on the fixed shaft sleeve. A fan blade shaft is rotationally arranged between the two bearing mounting seats, a shifting piece wheel is fixedly arranged on the fan blade shaft in a sleeving manner, a spring piece is further arranged between the two bearing mounting seats, the spring piece is in contact with an impeller of the shifting piece wheel, and fan blades are further arranged at one end of the fan blade shaft; when the stirring shaft rotates, the fan blades are driven to rotate; the fan blade shaft drives the plectrum wheel to rotate, the plectrum wheel collides with the spring piece, so that the whole device vibrates, the vibration is transmitted to the stirring shaft, and materials cannot be self-gathered on the stirring shaft. The utility model solves the problem of self-polymerization of the stirring shaft of the polymerization kettle, and prevents the problems of reduction of stirring efficiency, influence on normal production and the like caused by continuous accumulation of materials at the self-polymerization position of the stirring shaft.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, and particularly relates to a device for preventing a stirring shaft of a polymerization kettle from self-aggregating. Background Art

[0002] It is very common for the agitator shaft to self-aggregate during the production process of the polymerization kettle. When the agitator shaft self-aggregates, it cannot be automatically cleaned, resulting in the continuous accumulation of materials at the agitator shaft self-aggregation position, causing a decrease in stirring efficiency, increased energy consumption, and affecting normal production. In severe cases, the agitator shaft may break, forcing the production to be stopped for maintenance, which seriously affects normal production. Utility Model Content

[0003] The utility model aims to provide a device for preventing the self-aggregation of a stirring shaft of a polymerization kettle, so as to solve the problem of the self-aggregation of the stirring shaft during the production process of the polymerization kettle.

[0004] The technical solution of the utility model is: a device for preventing the self-aggregation of the stirring shaft of the polymerization kettle, comprising a fixed shaft sleeve and a vibration mechanism, the vibration mechanism is arranged on the outer wall of the fixed shaft sleeve, the vibration mechanism comprises two bearing mounting seats, a fan shaft is rotatably provided between the two bearing mounting seats, a paddle wheel is provided on the fixed sleeve of the fan shaft, a spring sheet is further provided between the two bearing mounting seats, the spring sheet is in contact with the paddle wheel impeller, and a fan blade is further provided at one end of the fan shaft.

[0005] As a further improvement of the present invention, at least two groups of rapping mechanisms are provided and are evenly distributed on the outer wall of the fixed sleeve.

[0006] As a further improvement of the present invention, the fan shaft is mounted on the bearing mounting seat via a rotating bearing.

[0007] As a further improvement of the present invention, the paddle wheel has a multi-tooth structure.

[0008] As a further improvement of the present invention, bolt holes are symmetrically provided at both ends of the outer wall of the fixed sleeve.

[0009] The beneficial effects of the utility model are as follows: the utility model arranges the fixed sleeve and the vibration mechanism as a whole on the stirring shaft. When the stirring shaft of the polymerization kettle rotates, the driving blades rotate under the action of the fluid in the polymerization kettle, and the paddle wheel rotates synchronously with the fan shaft. When the paddle wheel rotates, it collides with the spring sheet on the fixed sleeve, causing the entire device to vibrate. The generated vibration is transmitted to the stirring shaft of the polymerization kettle. Through the vibration of the stirring shaft of the polymerization kettle, the reaction materials in the polymerization kettle cannot self-polymerize on the stirring shaft.

[0010] The utility model provides a safe, stable, energy-saving, environmentally friendly, simple in structure, and easy to maintain device for preventing the self-aggregation of the agitator shaft of a polymerization reactor. The device solves the problem of self-aggregation of the agitator shaft during the production process of the polymerization reactor and prevents the continuous accumulation of materials at the agitator shaft self-aggregation position, which causes a decrease in agitation efficiency, an increase in energy consumption, and an impact on normal production. The utility model is safe, stable, energy-saving, environmentally friendly, simple in structure, and easy to maintain. It uses mechanical vibration to prevent self-aggregation, is easy to install, has good performance, and is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the device in use;

[0012] Figure 2 This is a three-dimensional diagram of the overall structure of the device of the utility model;

[0013] Figure 3 This is a top view of the overall structure of the device of the utility model;

[0014] Figure 4 This is a structural diagram of the spring sheet in the device of the utility model.

[0015] In the figure: 1-fixed sleeve; 11-bearing mounting seat; 12-bolt hole; 2-paddle wheel; 21-bolt; 3-fan shaft; 31-fan blade; 4-rotating bearing; 5-spring leaf; 6-stirring shaft. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] like Figure 1-Figure 4 As shown, a device for preventing the self-aggregation of the stirring shaft of a polymerization kettle includes a fixed sleeve 1 and a vibrating mechanism. The vibrating mechanism is arranged on the outer wall of the fixed sleeve 1, and the vibrating mechanism includes two bearing mounting seats 11. A fan shaft 3 is rotatably provided between the two bearing mounting seats 11, and a paddle wheel 2 is provided on the fixed sleeve of the fan shaft 3. A spring sheet 5 is also provided between the two bearing mounting seats 11. The spring sheet 5 is in contact with the impeller of the paddle wheel 2, and a fan blade 31 is also provided at one end of the fan shaft 3.

[0018] There are at least two sets of rapping mechanisms evenly distributed on the outer wall of the fixed sleeve 1; the fan shaft 3 is mounted on the bearing mounting seat 11 through the rotating bearing 4. The paddle wheel 2 is a multi-tooth structure; bolt holes 12 are symmetrically provided at both ends of the outer wall of the fixed sleeve 1.

[0019] Example 1

[0020] Two groups of vibrating mechanisms are symmetrically provided on the left and right side walls of the fixed sleeve 1. The bearing mounting seat 11 is composed of a circular portion and a trapezoidal portion. A spring sheet 5 is provided at the center position between the two bearing mounting seats 11 in each group of vibrating mechanisms. The trapezoidal portion of the bearing mounting seat 11 and the spring sheet 5 are connected to the outer wall of the fixed sleeve 1 by welding. The rotating bearing 4 is provided on the circular portion of the bearing mounting seat 11. The fan blade shaft 3 passes through the center hole of the rotating bearing 4 and the paddle wheel 2. The paddle wheel 2 and the fan blade shaft 3 are tightened and fixed by bolts 21. The fan blades 31 on each vibrating mechanism are arranged circumferentially along the fixed sleeve 1.

[0021] The fixed sleeve 1 is tightened and fixed on the polymerization kettle stirring shaft 6 through the bolt hole 12; when the polymerization kettle stirring shaft 6 rotates, the driving blades 31 rotate under the action of the fluid in the polymerization kettle, and the rotation of the blades 31 will also disperse a part of the material; the blade shaft 3 drives the paddle wheel 2 to rotate synchronously, and when the paddle wheel 2 rotates, it collides with the spring sheet 5 on the fixed sleeve 1, causing the entire device to vibrate, and the vibration is transmitted to the polymerization kettle stirring shaft 6. Through the vibration of the polymerization kettle stirring shaft 6, the reaction materials in the polymerization kettle cannot self-aggregate on the stirring shaft 6.

Claims

1. A device for preventing the self-aggregation of a stirring shaft of a polymerization reactor, characterized in that: The invention comprises a fixed shaft sleeve (1) and a vibration mechanism, wherein the vibration mechanism is arranged on the outer wall of the fixed shaft sleeve (1), and the vibration mechanism comprises two bearing mounting seats (11). A fan shaft (3) is rotatably arranged between the two bearing mounting seats (11). A paddle wheel (2) is arranged on the fixed sleeve of the fan shaft (3). A spring sheet (5) is further arranged between the two bearing mounting seats (11). The spring sheet (5) contacts the impeller of the paddle wheel (2). A fan blade (31) is further arranged at one end of the fan shaft (3).

2. The device for preventing the self-aggregation of the stirring shaft of a polymerization reactor according to claim 1, characterized in that: The rapping mechanism is provided with at least two groups and is evenly distributed on the outer wall of the fixed shaft sleeve (1).

3. The device for preventing the self-aggregation of the stirring shaft of a polymerization reactor according to claim 1 or 2, characterized in that: The fan shaft (3) is mounted on the bearing mounting seat (11) via a rotating bearing (4).

4. The device for preventing the self-aggregation of the stirring shaft of a polymerization reactor according to claim 3, characterized in that: The paddle wheel (2) has a multi-tooth structure.

5. The device for preventing the self-aggregation of the stirring shaft of a polymerization reactor according to claim 4, characterized in that: Bolt holes (12) are symmetrically provided at both ends of the outer wall of the fixed sleeve (1).

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