Method for preventing polymerization kettle stirring shaft from self-polymerization

Abstract

The invention provides a method for preventing self-aggregation of a stirring shaft of a polymeric kettle, belongs to the technical field of chemical production, and solves the problem of self-aggregation of the stirring shaft in the production process of the polymeric kettle. A device used by the method comprises a fixed shaft sleeve and a rapping mechanism, the rapping mechanism is arranged on the outer wall of the fixed shaft sleeve, and the rapping mechanism comprises two bearing mounting seats; 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 invention solves the problem of self-polymerization of the stirring shaft of the polymeric 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 invention belongs to the technical field of chemical production, and in particular relates to a method for preventing a stirring shaft of a polymerization kettle from self-polymerization. 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 continuous accumulation of materials at the self-aggregation position of the agitator shaft, causing a decrease in stirring efficiency, increased energy consumption, and affecting normal production. In severe cases, the agitator shaft may break, necessitating the shutdown for maintenance, which seriously affects normal production. Summary of the invention

[0003] The purpose of the present invention is to provide a method for preventing a stirring shaft of a polymerization kettle from self-aggregating, so as to solve the problem of self-aggregation of the stirring shaft during the production process of the polymerization kettle.

[0004] The technical scheme of the present invention is: a method for preventing a polymerization kettle stirring shaft from self-aggregation, the device structure used is as follows, including a polymerization kettle stirring shaft, a fixed shaft sleeve and a rapping mechanism, the rapping mechanism is arranged on the outer wall of the fixed shaft sleeve, the rapping mechanism includes two bearing mounting seats, a fan blade shaft is rotatably arranged between the two bearing mounting seats, a paddle wheel is arranged on the fixed sleeve of the fan blade shaft, a spring sheet is also arranged between the two bearing mounting seats, the spring sheet is in contact with the paddle wheel impeller, and a fan blade is also arranged at one end of the fan blade shaft; The method comprises the following steps: A: Fix the fixed sleeve on the stirring shaft of the polymerization kettle; B: When the stirring shaft of the polymerization kettle rotates, the driving blades rotate under the action of the fluid in the polymerization kettle; C: The fan shaft drives the paddle wheel to rotate synchronously. When the paddle wheel rotates, it collides with the spring sheet on the fixed shaft sleeve, causing the fixed shaft sleeve and the vibration mechanism to vibrate. The 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.

[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 blade shaft is mounted on the bearing mounting seat via a rotating bearing.

[0007] As a further improvement of the present invention, the paddle wheel is 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 present invention are as follows: the device used in the present invention is achieved by arranging a fixed sleeve and a 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 blade 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 present invention 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 kettle, and a method for using the device, to solve the problem of the self-aggregation of the agitator shaft during the production process of the polymerization kettle, and to prevent the continuous accumulation of materials at the self-aggregation position of the agitator shaft, resulting in a decrease in stirring efficiency, an increase in energy consumption, and the impact on normal production. The present invention is safe, stable, energy-saving, environmentally friendly, simple in structure, and easy to maintain. It adopts a mechanical vibration method to prevent self-aggregation, is easy to install, has a good use effect, and is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the use state of the device used in the present invention; Figure 2 A three-dimensional diagram of the overall structure of the device used in the present invention; Figure 3 A top view of the overall structure of the device used in the present invention; Figure 4 This is a structural diagram of the spring sheet in the device used in the present invention.

[0012] 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

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] like Figure 1-Figure 4 As shown, a method for preventing a polymerization kettle stirring shaft from self-aggregation, the device structure used is as follows, including a polymerization kettle stirring shaft 6, a fixed shaft sleeve 1 and a rapping mechanism, the rapping mechanism is arranged on the outer wall of the fixed shaft sleeve 1, the rapping mechanism includes 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 also arranged 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 arranged at one end of the fan shaft 3; The method comprises the following steps: A: Fix the fixed sleeve 1 on the stirring shaft 6 of the polymerization kettle; B: When the stirring shaft 6 of the polymerization kettle rotates, the driving blade 31 rotates under the action of the fluid in the polymerization kettle; C: The fan shaft 3 drives the paddle wheel 2 to rotate synchronously. When the paddle wheel 2 rotates, it collides with the spring sheet 5 on the fixed shaft sleeve 1, causing the fixed shaft sleeve 1 and the rapping mechanism to vibrate. 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-polymerize on the stirring shaft 6.

[0015] There are at least two groups of vibrating 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 a rotating bearing 4; the paddle wheel 2 is a multi-tooth structure; bolt holes 12 are symmetrically arranged at both ends of the outer wall of the fixed sleeve 1.

[0016] Embodiment 1, Two groups of vibrating mechanisms are symmetrically arranged on the left and right side walls of the fixed sleeve 1. The bearing mounting seat 11 is formed by connecting 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 arranged on the circular portion of the bearing mounting seat 11. The blade shaft 3 passes through the center hole of the rotating bearing 4 and the paddle wheel 2. The paddle wheel 2 and the blade shaft 3 are tightened and fixed by bolts 21. The blades 31 on each vibrating mechanism are arranged circumferentially along the fixed sleeve 1.

[0017] The fixed sleeve 1 is tightened and fixed on the polymerization kettle stirring shaft 6 with the bolt holes 12; when the polymerization kettle stirring shaft 6 rotates, the driving blades 31 are rotated under the action of the fluid in the polymerization kettle, and the rotation of the blades 31 will also disperse a part of the materials; the blade shaft 3 drives the paddle wheel 2 to rotate synchronously, and the paddle wheel 2 collides with the spring sheet 5 on the fixed sleeve 1 when rotating, so that the whole device vibrates, 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-polymerize on the stirring shaft 6.

Claims

1. A method for preventing the self-polymerization of a stirring shaft of a polymerization reactor, characterized in that: The structure of the device used is as follows, comprising a polymerization kettle stirring shaft (6), 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 blade shaft (3) is rotatably arranged between the two bearing mounting seats (11), a paddle wheel (2) is arranged on the fixed sleeve on the blade shaft (3), a spring sheet (5) is also arranged between the two bearing mounting seats (11), the spring sheet (5) is in contact with the impeller of the paddle wheel (2), and a blade (31) is also arranged at one end of the blade shaft (3); The method comprises the following steps: A: Fix the fixed sleeve (1) on the stirring shaft (6) of the polymerization reactor; B: When the stirring shaft (6) of the polymerization kettle rotates, the driving blade (31) rotates under the action of the fluid in the polymerization kettle; C: The fan blade shaft (3) drives the paddle wheel (2) to rotate synchronously. When the paddle wheel (2) rotates, it collides with the spring sheet (5) on the fixed shaft sleeve (1), causing the fixed shaft sleeve (1) and the vibration mechanism to vibrate. The vibration is transmitted to the stirring shaft (6) of the polymerization kettle. Through the vibration of the stirring shaft (6) of the polymerization kettle, the reaction materials in the polymerization kettle cannot self-polymerize on the stirring shaft (6).

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

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

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

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