Polyurethane processing stirring device

Abstract

The utility model discloses a polyurethane processing stirring device which comprises a stirring shaft installed in a polymerization kettle, the stirring shaft is of a prism structure, a stirring paddle is fixedly installed on the cylindrical surface of the corresponding side of the stirring shaft, the stirring paddle is of a long-strip-shaped plate body structure, one end of the stirring paddle is detachably fixed to the stirring shaft, and the other end of the stirring paddle horizontally extends and is twisted; the plurality of stirring paddles are arranged along the length direction of the stirring shaft and are regularly and spirally arranged to form a stepped stirring structure. The stirring paddles simultaneously displace along the circumferential side and the length direction of the stirring shaft, and the circumferential side is correspondingly a spiral line, so that the stirring paddles are arranged in an integral spiral shape. When the stirring shaft is driven, the single stirring paddle has the effect of improving the solvent through the torsion surface of the single stirring paddle, meanwhile, the whole stirring paddle is distributed in a spiral mode, the solvent can be rolled upwards on the whole power, the upward rolling power is achieved while the solvent is stirred, and stirring is more uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment, in particular to a polyurethane processing stirring device. Background Art

[0002] In the preparation process of polyurethane and acrylic glue, various polymerization kettles are usually involved, and the semi-finished products are polymerized, fed, and reacted in the polymerization kettle. The polymerization kettle is equipped with insulation equipment, heating equipment, cooling equipment, pressurizing equipment, and stirring equipment, among which the stirring equipment is mainly composed of a stirring shaft and a stirring paddle. A motor is installed at the upper end of the stirring shaft corresponding to the polymerization kettle, and the output end of the motor drives the stirring shaft to rotate through a reduction gear, thereby completing the stirring process of the solvent inside the polymerization kettle.

[0003] The stirring paddles corresponding to the existing stirring devices are mostly finished products. During the installation process, since the opening side of the polymerization kettle is too small, the stirring device cannot be installed as a whole, so the stirring paddle and the stirring shaft can only be disassembled and installed in sequence. The installation process is cumbersome and it is easy to cause the stirring paddle to loosen during operation. The later maintenance of the stirring paddle is also likely to cause difficulties in the installation and debugging of the stirring paddle.

[0004] Therefore, the utility model is mainly to prepare a stirring device for use in a polymerization kettle, and the stirring paddle and the stirring shaft can be conveniently disassembled and installed, thereby improving the assembly efficiency of the overall equipment and making subsequent maintenance and replacement more convenient. Utility Model Content

[0005] The utility model aims to provide a polyurethane processing stirring device, which is mainly used to prepare a stirring device used in a polymerization kettle. The stirring paddle and the stirring shaft can be conveniently disassembled and installed, thereby improving the assembly efficiency of the overall equipment and making subsequent maintenance and replacement more convenient.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] A polyurethane processing stirring device comprises a stirring shaft installed in a polymerization kettle, the stirring shaft is a prism structure, a stirring paddle is fixedly mounted on the corresponding side cylinder of the stirring shaft, the stirring paddle is a long strip plate structure, one end of which is detachably fixed to the stirring shaft, and the other end of which extends horizontally and twists;

[0008] There are multiple stirring paddles, which are arranged along the length direction of the stirring shaft and are arranged in a regular spiral shape to form a stepped stirring structure.

[0009] Furthermore, a plug-in sleeve is fixed on the cylindrical surface corresponding to the stirring shaft, and a plug-in plate is vertically fixed on the fixed end corresponding to the stirring paddle. The plug-in sleeve is welded and fixed to the cylindrical surface of the stirring shaft and forms a slot with the cylindrical part for plugging and fixing the plug-in plate.

[0010] Furthermore, the plug-in slot corresponding to the plug-in sleeve is located on the upper side, and the plug-in sleeve includes two side slot walls and a bottom support wall, the slot wall cross-section is L-shaped, and a slot for accommodating the stirring paddle is formed between the two side slot walls. A circular hole is opened at the position of the slot wall corresponding to the upper side plug-in slot, and a nut is welded and fixed at the position of the circular hole, and the plug plate is limited by installing bolts.

[0011] Furthermore, the torsion angle of the stirring paddle is 90°, the fixed end of the stirring paddle extends to the free end, and the corresponding end side is twisted from vertical to horizontal.

[0012] The utility model has the following beneficial effects: the stirring paddles are displaced along the circumferential side and the length direction of the stirring shaft at the same time, and the circumferential side corresponds to a spiral line, so that the stirring paddles are arranged in an overall spiral shape. When driving the stirring shaft, a single stirring paddle has the effect of lifting the solvent through its own torsion surface, and at the same time, the overall stirring paddles are spirally distributed, which will also roll the solvent upward in the overall power, so that the solvent has the power to roll upward while being stirred, and the stirring is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0014] Figure 1 : Schematic diagram of the structure of the utility model.

[0015] Figure 2 : The enlarged structural diagram of the utility model corresponding to the position of the plug sleeve.

[0016] In the accompanying drawings, the components represented by the respective reference numerals are listed as follows: a stirring shaft 1 , a stirring paddle 2 , a plug sleeve 3 , a plug plate 21 , a nut 31 , and a bolt 32 . DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] like Figure 1As shown: a polyurethane processing stirring device, including a stirring shaft 1 installed in a polymerization kettle, the stirring shaft 1 is a prism structure, corresponding to a hexagonal prism steel structure, the corresponding polymerization kettle is a tank structure, the side wall is cylindrical, the stirring shaft is coaxially arranged with the polymerization kettle, a motor is installed on the upper side of the polymerization kettle, the output end of the motor is a reduction gear, extending to the driving shaft of the polymerization kettle tank, the upper end of the stirring shaft is a flange structure, a screw hole is provided, and the driving shaft is fixed, and the stirring shaft 1 is fixed with a stirring paddle 2 corresponding to the side column surface, the stirring paddle 2 is a long strip plate structure, one end of which can be detachably fixed to the stirring shaft 1, and it is convenient to disassemble and install the stirring paddle. When installing the stirring device, the stirring shaft is installed first, and then the stirring paddle is installed in sequence on the corresponding stirring shaft. At the same time, if a single stirring paddle is damaged or corroded seriously in the later stage, it can be replaced and maintained in a targeted manner. The other end extends horizontally and twists; after the stirring paddle is twisted, a torsion surface is formed, which is used to form an upward shear force. When the stirring shaft rotates, each stirring paddle works in coordination to continuously stir the solvent upward in a rolling manner to prevent solute deposition.

[0019] There are multiple stirring paddles 2, which are arranged along the length direction of the stirring shaft 1 and are arranged in a regular spiral shape to form a stepped stirring structure. The stirring paddles are displaced along the circumferential side and the length direction of the stirring shaft at the same time. The circumferential side corresponds to a spiral line, so that the stirring paddles are arranged in an overall spiral shape. When driving the stirring shaft, a single stirring paddle has the effect of lifting the solvent through its own torsion surface. At the same time, the overall spiral distribution of the stirring paddles will also roll the solvent upward in terms of overall power, so that the solvent has the power to roll upward while being stirred, and the stirring is more uniform.

[0020] like Figure 2 As shown: a plug-in sleeve 3 is fixed on the cylindrical surface corresponding to the stirring shaft 1, and a plug-in plate 21 is vertically fixed on the corresponding fixed end of the stirring paddle 2. The plug-in sleeve 3 is welded and fixed to the cylindrical surface of the stirring shaft 1, and forms a slot with the cylindrical part for plugging and fixing the plug-in plate 21. The stirring paddle is plugged and installed on the cylindrical surface corresponding to the side wall of the stirring shaft. The plug-in sleeve is pre-welded and fixed on the side wall of the stirring shaft. The plug-in sleeve is first welded and fixed according to the extended arrangement of the stirring paddle, so that the subsequent installation process of the stirring paddle is easier. The plug-in slot corresponding to the plug-in sleeve 3 is located on the upper side. The plug-in sleeve 3 includes two side slot walls and a bottom support wall. The cross-section of the slot wall is L-shaped, and a slot for accommodating the stirring paddle 2 is formed between the two side slot walls. The side of the slot wall is abutted against the cylindrical side corresponding to the stirring shaft and welded and fixed.

[0021] A circular hole is opened at the position of the slot wall corresponding to the upper plug-in slot, and a nut 31 is welded and fixed at the position of the circular hole, and the plug-in plate is limited by installing bolts 32. The plug-in plate is inserted into the slot after being inserted from the upper plug-in slot, and bolts are installed at the corresponding slot position to lock the stirring paddle to prevent the stirring paddle from falling off during rotation.

[0022] The torsion angle of the stirring paddle 2 is 90°. The fixed end of the stirring paddle 2 extends to the free end, and the corresponding end side is twisted from vertical to horizontal.

[0023] This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A polyurethane processing stirring device, characterized in that: The invention comprises a stirring shaft (1) installed in a polymerization kettle, wherein the stirring shaft (1) is a prismatic structure, and a stirring paddle (2) is fixedly mounted on a corresponding side cylindrical surface of the stirring shaft (1), and the stirring paddle (2) is a long strip plate structure, one end of which is detachably fixed to the stirring shaft (1), and the other end of which extends horizontally and can be twisted; The stirring paddles (2) are multiple and are arranged along the length direction of the stirring shaft (1) and are arranged in a regular spiral shape to form a stepped stirring structure.

2. A polyurethane processing stirring device according to claim 1, characterized in that: A plug-in sleeve (3) is fixed on the cylindrical surface corresponding to the stirring shaft (1), and a plug-in plate (21) is vertically fixed on the fixed end corresponding to the stirring paddle (2). The plug-in sleeve (3) is welded and fixed to the cylindrical surface of the stirring shaft (1) and forms a slot with the cylindrical member for plugging and fixing the plug-in plate (21).

3. A polyurethane processing stirring device according to claim 2, characterized in that: The plug-in slot corresponding to the plug-in sleeve (3) is located on the upper side. The plug-in sleeve (3) comprises slot walls on two sides and a bottom support wall. The slot wall cross-section is L-shaped. A slot for accommodating the stirring paddle (2) is formed between the slot walls on the two sides.

4. A polyurethane processing stirring device according to claim 3, characterized in that: A circular hole is provided at a position of the groove wall corresponding to the upper plugging notch, a nut (31) is welded and fixed at the position of the circular hole, and the plug plate is limited by installing bolts (32).

5. A polyurethane processing stirring device according to claim 1, characterized in that: The stirring paddle (2) has a twisting angle of 90°, and the fixed end of the stirring paddle (2) extends to the free end, with the corresponding end side twisted from vertical to horizontal.

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