Raw material stirring device for polytetrafluoroethylene production and processing

Abstract

The utility model relates to the technical field of polytetrafluoroethylene production and processing, in particular to a raw material stirring device for polytetrafluoroethylene production and processing, which comprises a ceramic base plate, reinforcing support legs are fixedly connected to the periphery of the lower end of the ceramic base plate, and a control keyboard is fixedly connected to the front part of the upper end of the ceramic base plate. An inner ceramic stirring tank is fixedly connected to the middle of the upper end of the ceramic base plate, a feeding pipe is fixedly connected to the left portion of the upper end of the inner ceramic stirring tank, and a raw material stirring device is fixedly connected to the middle of the upper end of the ceramic base plate. According to the raw material stirring device for polytetrafluoroethylene production and processing, the overall structure is stable, raw materials can be fed through the feeding pipe, the raw material stirring device is used for achieving uniform stirring of the raw materials, discharging is convenient through the discharging pipe and the control valve, the interior of the inner ceramic stirring tank can be effectively cleaned in cooperation with the cleaning agent box and the cleaning structure, and the service life of the raw materials is prolonged. Efficient polytetrafluoroethylene production and processing are guaranteed; and the device can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to the polytetrafluoroethylene production and processing technical field, especially relates to a raw material stirring device for polytetrafluoroethylene production and processing. BACKGROUND

[0002] Polytetrafluoroethylene (PTFE) is widely and critically applied in many industrial fields such as chemical industry, machinery, electronics, aerospace, etc. due to its excellent characteristics such as chemical stability, high temperature resistance and low friction coefficient. In its production and processing, the raw material stirring link is extremely important. Its production raw materials are diverse, covering tetrafluoroethylene monomer, lubricant, stabilizer and other additives, and filling materials. Only these raw materials are fully and uniformly mixed, can the consistency of the final product quality and the stability of the performance be guaranteed. With the growth of market demand and the improvement of quality requirements, efficient, accurate and reliable stirring devices have become the key needs of enterprises. However, many existing stirring devices adopt traditional paddle structure, such as single propeller blade or straight blade paddle. This structure only produces strong force in local area during stirring. For viscous and large-component-difference polytetrafluoroethylene raw materials, it is difficult to achieve effective stirring in all directions and multiple levels. After stirring, the materials are easily attached and remained in the bottom of the container and the right-angle connection between the side wall and other parts, which not only causes raw material waste, but also may mix into the next batch of production, affecting the product quality stability. SUMMARY

[0003] The main purpose of the utility model is to provide a raw material stirring device for polytetrafluoroethylene production and processing, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0005] A raw material stirring device for polytetrafluoroethylene production and processing, comprising a ceramic base plate, a reinforcing support leg is fixedly connected around the lower end of the ceramic base plate, a control keyboard is fixedly connected to the front upper end of the ceramic base plate, an inner ceramic stirring tank is fixedly connected to the middle upper end of the ceramic base plate, a feeding pipe is fixedly connected to the left upper end of the inner ceramic stirring tank, a stirring raw material device is fixedly connected to the middle upper end of the ceramic base plate, the lower part of the stirring raw material device is located in the inner ceramic stirring tank, a discharge pipe is fixedly connected to the right lower end of the ceramic base plate, a control valve is arranged on the right surface of the discharge pipe, the discharge pipe is communicated with the inside of the ceramic base plate, a cleaning agent tank is arranged on the left side of the ceramic base plate, a cleaning structure is fixedly connected to the middle upper end of the cleaning agent tank, and the right part of the cleaning structure extends into the upper part of the inner ceramic stirring tank.

[0006] Preferably, the stirring raw material device comprises a driver fixedly connected with the upper end of the inner ceramic stirring tank, the output end of the driver penetrates the middle part of the upper end of the inner ceramic stirring tank and is fixedly connected with a fixed column, the lower end of the fixed column is movably connected with the ceramic base plate through a bearing, the middle part of the outer surface of the fixed column is fixedly connected with an upper fixed block, the lower part of the outer surface of the upper fixed block is fixedly connected with three wedge-shaped folding stirring blades, and the lower part of the outer surface of the fixed column is fixedly connected with a lower stirring blade assembly.

[0007] By adopting the above technical scheme, the driver provides power to drive the rotation of the fixed column, the wedge-shaped folding stirring blades connected with the upper fixed block have special shapes and angles conducive to the generation of complex flow patterns, the stirring effect is enhanced, the raw materials are more uniformly mixed, the lower stirring blade assembly further enhances the stirring, the bearing ensures the stable rotation of the fixed column, and the raw materials of polytetrafluoroethylene are efficiently stirred in the inner ceramic stirring tank, thereby improving the product quality.

[0008] Preferably, the three wedge-shaped folding stirring blades are arranged in a ring array, and the ends of the three wedge-shaped folding stirring blades away from the upper fixed block are in close contact with the inner wall of the inner ceramic stirring tank but are not fixed.

[0009] By adopting the above technical scheme, the wedge-shaped folding stirring blades arranged in a ring array are in close contact with the tank wall, fully stirring the raw materials in each corner during rotation, expanding the stirring range, and improving the overall stirring uniformity in cooperation with other accessories.

[0010] Preferably, the lower stirring blade assembly comprises a lower fixed block, the outer surface of the lower fixed block is fixedly connected with three anchor stirring blades in a ring array, and a through fixing hole is formed in the middle part of the upper end of the lower fixed block.

[0011] By adopting the above technical scheme, the lower fixed block is connected with the fixed column through the fixing hole, the anchor stirring blades arranged in a ring array can adhere to the tank bottom to stir the raw materials, avoiding the accumulation of materials at the bottom, and the raw materials are more fully and uniformly stirred in cooperation with the upper accessory.

[0012] Preferably, the lower fixed block is fixedly connected with the lower part of the outer surface of the fixed column through the fixing hole, the ends of the three anchor stirring blades away from the lower fixed block are in close contact with the inner wall of the inner ceramic stirring tank but are not fixed, the lower ends of the three anchor stirring blades are in close contact with the upper end surface of the ceramic base plate but are not fixed, the three anchor stirring blades are located directly below the three wedge-shaped folding stirring blades, and the three anchor stirring blades are vertically and staggeredly distributed with the three wedge-shaped folding stirring blades.

[0013] By adopting the above technical solution: the lower solid block is connected to the fixed column through the fixed hole to stabilize the structure, and the anchor-type stirring blades are in close contact with the tank wall and the base plate, which can fully stir the raw materials at the bottom. In addition, in combination with the vertically intersecting wedge-shaped folding stirring blades, it can stir in all directions and in multiple layers, avoid material accumulation and stirring dead corners, and make the polytetrafluoroethylene raw materials more uniform and sufficient.

[0014] Preferably, the cleaning structure includes a liquid pump, which is fixedly connected to the upper middle part of the cleaning agent tank. A suction pipe is fixedly connected to the lower end of the liquid pump, extending into the cleaning agent tank. An outlet pipe is fixedly connected to the output end of the liquid pump. The end of the outlet pipe away from the liquid pump extends into the upper part of the inner ceramic mixing tank and is fixedly connected to a circular water pipe. Several external spray nozzles are fixedly connected to the lower part of the outer surface of the circular water pipe, and several internal spray nozzles are fixedly connected to the lower part of the inner side of the circular water pipe.

[0015] By adopting the above technical solution: the pump extracts the cleaning solution from the cleaning agent tank and sends it to the annular water pipe through the outlet pipe. The external and internal spray nozzles can spray the cleaning solution into the ceramic mixing tank from different angles in all directions, effectively cleaning the tank wall, stirring blades and other parts, removing residual raw materials, ensuring the cleanliness of the equipment, providing a pure environment for subsequent production and ensuring product quality.

[0016] Preferably, the annular water pipe is located on the upper side of the upper solid block, the spraying direction of the plurality of external spray nozzles is towards the inner wall of the inner ceramic mixing tank, and the spraying direction of the plurality of internal spray nozzles is towards the wedge-shaped folding stirring blades and the lower stirring blade assembly.

[0017] By adopting the above technical solution: the circular water pipe is positioned appropriately, the outer spray nozzle is aligned with the tank wall and the inner spray nozzle is directed towards the stirring blades, which can accurately spray and fully cover the area to be cleaned, effectively removing residues. With the help of various accessories, the stirring device is kept clean, which is conducive to continuous use.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this utility model, the fixed column is driven to rotate by the driver. The wedge-shaped folding stirring blades connected to the upper fixed block are arranged in a ring array and closely abut the tank wall. The special shape and layout expand the stirring range and generate a complex flow pattern to effectively stir the upper raw materials. The anchor-type stirring blades of the lower fixed block are connected to the fixed column through the fixing holes and closely abut the tank wall and the base plate, which can fully stir the bottom raw materials. They are also distributed perpendicularly and interlaced with the wedge-shaped folding stirring blades to form all-round multi-level stirring. This design overcomes the limitation of traditional paddle stirring which only generates strong force in local areas. For viscous polytetrafluoroethylene raw materials with large differences in composition characteristics, more uniform and efficient mixing can be achieved, improving product quality and production efficiency.

[0020] 2. In this utility model, the pump can draw cleaning liquid from the cleaning agent tank and deliver it to the annular water pipe through the outlet pipe. The outer spray nozzle on the annular water pipe can accurately spray towards the inner wall of the tank, effectively rinsing the residual material adhering to the tank wall, especially in corners where residue is easy to accumulate. The inner spray nozzle sprays towards the stirring blades, which can thoroughly remove the residue on the blades and prevent the residue from being mixed into the next production and affecting the product quality. The overall structure is well-coordinated, realizing all-round and multi-angle cleaning of the inner ceramic stirring tank and stirring components, ensuring the cleanliness of the device, and thus facilitating the continuous and stable stirring of polytetrafluoroethylene raw materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a raw material stirring device for the production and processing of polytetrafluoroethylene according to this utility model.

[0022] Figure 2 This is a schematic diagram of the overall structure of the raw material mixing device for the production and processing of polytetrafluoroethylene according to this utility model.

[0023] Figure 3 This is a schematic diagram of the overall structure of the lower stirring blade assembly of a raw material stirring device for polytetrafluoroethylene production and processing according to this utility model.

[0024] Figure 4 This is a schematic diagram of the overall cleaning structure of a raw material stirring device for polytetrafluoroethylene production and processing according to this utility model.

[0025] In the diagram: 1. Ceramic base plate; 2. Reinforced support leg; 3. Control keyboard; 4. Inner ceramic mixing tank; 5. Feed pipe; 6. Raw material mixing device; 7. Discharge pipe; 8. Control valve; 9. Cleaning agent tank; 10. Cleaning structure; 61. Driver; 62. Fixed column; 63. Upper fixed block; 64. Wedge-shaped folding mixing blade; 65. Lower mixing blade assembly; 101. Liquid pump; 102. Suction pipe; 103. Discharge pipe; 104. Circular water pipe; 105. External spray head; 106. Internal spray head; 651. Lower fixed block; 652. Anchor-type mixing blade; 653. Fixing hole. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figures 1-4 This utility model provides a technical solution:

[0030] A raw material mixing device for polytetrafluoroethylene (PTFE) production and processing includes a ceramic base plate 1. Reinforcing support legs 2 are fixedly connected to the lower perimeter of the ceramic base plate 1. A control keyboard 3 is fixedly connected to the upper front of the ceramic base plate 1. An inner ceramic mixing tank 4 is fixedly connected to the upper middle of the ceramic base plate 1. A feed pipe 5 is fixedly connected to the upper left of the inner ceramic mixing tank 4. A raw material mixing device 6 is fixedly connected to the upper middle of the ceramic base plate 1, with its lower part located inside the inner ceramic mixing tank 4. A discharge pipe 7 is fixedly connected to the lower right of the ceramic base plate 1. A control valve 8 is provided on the right side of the outer surface of the discharge pipe 7, which communicates with the interior of the ceramic base plate 1. A cleaning agent tank 9 is provided on the left side of the ceramic base plate 1. A cleaning structure 10 is fixedly connected to the upper middle of the cleaning agent tank 9, with its right side extending into the upper part of the inner ceramic mixing tank 4.

[0031] In this embodiment, the mixing device 6 includes a driver 61, which is fixedly connected to the upper end of the inner ceramic mixing tank 4. The output end of the driver 61 passes through the middle of the upper end of the inner ceramic mixing tank 4 and is fixedly connected to a fixing column 62. The lower end of the fixing column 62 is movably connected to the ceramic base plate 1 via a bearing. An upper fixing block 63 is fixedly connected to the middle of the outer surface of the fixing column 62. Three wedge-shaped folding stirring blades 64 are fixedly connected to the lower part of the outer surface of the upper fixing block 63. A lower stirring blade assembly 65 is fixedly connected to the lower part of the outer surface of the fixing column 62. The three wedge-shaped folding stirring blades 64 are arranged in a ring array. The ends of the three wedge-shaped folding stirring blades 64 away from the upper fixing block 63 are pressed against but not fixed to the inner wall of the inner ceramic mixing tank 4. The mixing blade assembly 65 includes a lower fixed block 651. Three anchor-type mixing blades 652 are fixedly connected to the outer surface of the lower fixed block 651 in a ring array. A through fixing hole 653 is opened in the middle of the upper end of the lower fixed block 651. The lower fixed block 651 is fixedly connected to the lower part of the outer surface of the fixing column 62 through the fixing hole 653. The ends of the three anchor-type mixing blades 652 away from the lower fixed block 651 are in close contact with the inner wall of the inner ceramic mixing tank 4 but not fixed. The lower ends of the three anchor-type mixing blades 652 are in close contact with the upper surface of the ceramic base plate 1 but not fixed. The three anchor-type mixing blades 652 are located directly below the three wedge-shaped folding mixing blades 64. The three anchor-type mixing blades 652 and the three wedge-shaped folding mixing blades 64 are respectively distributed perpendicularly and alternately.

[0032] Through the above scheme: when the stirring device is working, the driver 61 drives the fixed column 62 to rotate. The wedge-shaped folding stirring blades 64 connected to the upper fixed block 63 in the middle of the fixed column 62 are arranged in a ring array and closely abut the tank wall. Their special shape and layout expand the stirring range and generate a complex flow pattern to stir the upper raw materials. Meanwhile, the anchor-type stirring blades 652 of the lower fixed block 651 are connected to the fixed column 62 through the fixing hole 653 and closely abut the tank wall and the ceramic base plate 1. They can effectively stir the bottom raw materials and are vertically and intersectingly distributed with the wedge-shaped folding stirring blades 64 to form all-round multi-level stirring. This can overcome the limitations of traditional paddle stirring and make the viscous polytetrafluoroethylene raw materials with large composition differences more uniform and efficient.

[0033] In this embodiment, the cleaning structure 10 includes a pump 101, which is fixedly connected to the upper middle part of the cleaning agent tank 9. A suction pipe 102 is fixedly connected to the lower end of the pump 101, which extends into the cleaning agent tank 9. An outlet pipe 103 is fixedly connected to the output end of the pump 101. The end of the outlet pipe 103 away from the pump 101 extends into the upper part of the inner ceramic mixing tank 4 and is fixedly connected to an annular water pipe 104. Several external spray nozzles 105 are fixedly connected to the lower part of the outer surface of the annular water pipe 104, and several internal spray nozzles 106 are fixedly connected to the lower part of the inner side of the annular water pipe 104. The annular water pipe 104 is located on the upper side of the upper solid block 63. The spraying direction of the several external spray nozzles 105 is towards the inner wall of the inner ceramic mixing tank 4, and the spraying direction of the several internal spray nozzles 106 is towards the wedge-shaped folding stirring blade 64 and the lower stirring blade assembly 65.

[0034] Through the above scheme: during cleaning, the pump 101 draws cleaning liquid from the cleaning agent tank 9 through the suction pipe 102, and sends it to the annular water pipe 104 located on the upper solid block 63 through the outlet pipe 103. The outer spray head 105 of the annular water pipe 104 faces the inner wall of the inner ceramic mixing tank 4, which can effectively wash away residual materials on the tank wall, especially at the connection between the bottom and the side wall. The inner spray head 106 faces the wedge-shaped folding stirring blades 64 and the lower stirring blade assembly 65, cleaning the residue on the stirring blades. Thus, through all-round and multi-angle spraying, residual raw materials are thoroughly removed, avoiding waste of raw materials and mixing into the next batch of production, ensuring product quality stability and production continuity.

[0035] It should be noted that this utility model is a raw material stirring device for polytetrafluoroethylene (PTFE) production and processing. During use, firstly, the raw material is injected into the inner ceramic mixing tank 4 through the feed pipe 5. Then, the raw material stirring device 6 is started, and the driver 61 drives the fixed column 62 to rotate. The upper fixed block 63 in the middle of the fixed column 62 causes the three wedge-shaped folding stirring blades 64 to rotate accordingly. Their design, tightly against the tank wall, effectively stirs the upper part of the raw material in the tank and expands the stirring range. Simultaneously, the lower fixed block 651 at the bottom of the fixed column 62 is connected to it through the fixing hole 653. The three anchor-type stirring blades 652 on the lower fixed block 651 tightly abut against the tank wall and the ceramic base plate 1, perpendicular to the wedge-shaped folding stirring blades 64. The staggered distribution of the materials ensures thorough mixing of the raw materials at the bottom of the tank. The two components work together to achieve comprehensive, multi-layered mixing, resulting in uniform material distribution. After mixing, if cleaning is required, the cleaning structure 10 is activated. The pump 101 draws cleaning solution from the cleaning agent tank 9 via the suction pipe 102 and sends it to the annular water pipe 104 via the outlet pipe 103. The outer spray nozzle 105 on the annular water pipe 104 sprays cleaning solution onto the inner wall of the ceramic mixing tank 4, effectively removing residual materials from the tank wall, especially at the junction of the bottom and side walls. The inner spray nozzle 106 sprays towards the wedge-shaped folding mixing blades 64 and the lower mixing blade assembly 65, cleaning the residue on the mixing blades and ensuring the device is clean for future use.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A raw material stirring device for polytetrafluoroethylene production processing, comprising a ceramic base plate (1), characterized in that: The lower end of the ceramic base plate (1) is fixedly connected with a reinforcing support leg (2), the upper end of the ceramic base plate (1) is fixedly connected with a control keyboard (3), the upper end of the ceramic base plate (1) is fixedly connected with an inner ceramic stirring tank (4), the upper end of the left part of the inner ceramic stirring tank (4) is fixedly connected with a feeding pipe (5), the upper end of the middle part of the ceramic base plate (1) is fixedly connected with a stirring raw material device (6), the lower part of the stirring raw material device (6) is located in the inner ceramic stirring tank (4), the right part of the lower end of the ceramic base plate (1) is fixedly connected with a discharging pipe (7), the outer surface of the right part of the discharging pipe (7) is provided with a control valve (8), the discharging pipe (7) is communicated with the inside of the ceramic base plate (1), the left side of the ceramic base plate (1) is provided with a cleaning agent tank (9), the upper end of the middle part of the cleaning agent tank (9) is fixedly connected with a cleaning structure (10), the right part of the cleaning structure (10) extends to the upper part of the inner ceramic stirring tank (4). The stirring raw material device (6) comprises a driver (61), the driver (61) is fixedly connected with the upper end of the inner ceramic stirring tank (4), the output end of the driver (61) penetrates the upper end of the middle part of the inner ceramic stirring tank (4) and is fixedly connected with a fixed column (62), the lower end of the fixed column (62) is movably connected with the ceramic base plate (1) through a bearing, the outer surface of the middle part of the fixed column (62) is fixedly connected with an upper fixed block (63), the outer surface of the lower part of the upper fixed block (63) is fixedly connected with three wedge-shaped folding stirring blades (64), the outer surface of the lower part of the fixed column (62) is fixedly connected with a lower stirring blade assembly (65). The cleaning structure (10) comprises a liquid pumping pump (101), the liquid pumping pump (101) is fixedly connected with the upper end of the middle part of the cleaning agent tank (9), the lower end of the liquid pumping pump (101) is fixedly connected with a liquid suction pipe (102), the liquid suction pipe (102) extends to the cleaning agent tank (9), the output end of the liquid pumping pump (101) is fixedly connected with a liquid outlet pipe (103), one end of the liquid outlet pipe (103) away from the liquid pumping pump (101) extends to the upper part of the inner ceramic stirring tank (4) and is fixedly connected with a circular ring-shaped water pipe (104), the outer surface of the lower part of the circular ring-shaped water pipe (104) is fixedly connected with a plurality of outer spray pipe heads (105), the inner side of the lower part of the circular ring-shaped water pipe (104) is fixedly connected with a plurality of inner spray pipe heads (106).

2. The raw material stirring device for polytetrafluoroethylene production and processing according to claim 1, characterized in that: The three wedge-shaped folding stirring blades (64) are arranged in an annular array, and the one end of the three wedge-shaped folding stirring blades (64) away from the upper fixed block (63) is tightly abutted against but not fixedly connected with the inner wall of the inner ceramic stirring tank (4).

3. The raw material stirring device for polytetrafluoroethylene production and processing according to claim 1, characterized in that: The lower stirring blade assembly (65) comprises a lower fixed block (651), the outer surface of the lower fixed block (651) is fixedly connected with three anchor-shaped stirring blades (652) in an annular array, and a through fixed hole (653) is formed in the upper end of the middle part of the lower fixed block (651).

4. The raw material stirring device for polytetrafluoroethylene production and processing according to claim 3, characterized in that: The lower fixed block (651) is fixedly connected with the lower part of the outer surface of the fixed column (62) through the fixed hole (653), the three anchor stirring blades (652) are in close contact with the inner wall of the inner ceramic stirring tank (4) but not fixed at the end away from the lower fixed block (651), the lower ends of the three anchor stirring blades (652) are in close contact with the upper end face of the ceramic base plate (1) but not fixed, the three anchor stirring blades (652) are located directly below the three wedge-shaped folding stirring blades (64), and the three anchor stirring blades (652) are vertically and staggered distributed with the three wedge-shaped folding stirring blades (64).

5. The raw material stirring device for polytetrafluoroethylene production and processing according to claim 1, characterized in that: The circular ring-shaped water pipe (104) is located on the upper side of the upper fixed block (63), the spraying directions of the plurality of outer spray pipe heads (105) are all towards the inner wall direction of the inner ceramic stirring tank (4), and the spraying directions of the plurality of inner spray pipe heads (106) are all towards the directions of the wedge-shaped folding stirring blades (64) and the lower stirring blade assembly (65).

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