Raw material heating device for polytetrafluoroethylene production

Abstract

The utility model discloses a polytetrafluoroethylene production raw material heating device which comprises a support, a first motor is fixedly installed at the rear end of the outer surface of the upper end of the support, and the outer surface of one end of the first motor is fixedly connected with a spiral heating extrusion pipe. A hopper is fixedly installed at the end, close to the first motor, of the outer surface of the upper end of the spiral heating extrusion pipe, a heat preservation cover is fixedly installed on the outer wall of the upper portion of the hopper, a heating belt is arranged in the heat preservation cover, and the heating belt is wound around the outer wall of the upper portion of the hopper. According to the raw material heating device for polytetrafluoroethylene production, through the arrangement of the heating belt, materials in the hopper can be preheated conveniently, the heating time of the materials in the spiral heating extrusion pipe is shortened, the production efficiency is improved, through the arrangement of the stirring assembly, the materials in the hopper can be stirred conveniently, and the production efficiency is improved. And the materials are prevented from caking, and the materials in the hopper are heated more uniformly when being preheated.

Description

Technical Field

[0001] The utility model relates to the technical field of polytetrafluoroethylene production, and specifically relates to a raw material heating device for polytetrafluoroethylene production. Background Art

[0002] Polytetrafluoroethylene (PTFE) is a high-performance plastic with excellent chemical stability, corrosion resistance and high insulation, and is widely used in various industrial fields. In the production process of polytetrafluoroethylene, the heating of raw materials is a key step to ensure that the raw materials can be smoothly formed through an extruder. The spiral heating extruder can provide an extrusion effect on the raw materials while heating through its internal spiral structure, which helps the uniform heating and forming of the raw materials. This heating method not only has high efficiency but also ensures the quality of the product.

[0003] In the prior art, in a Chinese patent document with the authorization announcement number CN215472360U, there is described a raw material heating device for the production of polytetrafluoroethylene tape. The patent includes a heating box, the bottom of the heating box is fixedly connected with a base, a through hole is opened on the inner top wall of the heating box, a feed hopper is fixedly connected to the top of the heating box, and a hinge is fixedly connected to the front of the feed hopper.

[0004] In the prior art, when feeding through the feed hopper, there are the following disadvantages:

[0005] 1. The feed hopper in the prior art lacks a stirring structure, so that the material is easy to agglomerate inside the feed hopper, and the agglomerated material will be unevenly heated when heated.

[0006] 2. The feed hopper in the prior art does not have a preheating function, so that the heating time of the material is long after it enters the heating chamber, reducing the production efficiency.

[0007] Therefore, we propose a raw material heating device for polytetrafluoroethylene production. Utility Model Content

[0008] (1) Technical Problems to be Solved

[0009] Aiming at the deficiencies of the prior art, the utility model provides a raw material heating device for polytetrafluoroethylene production, which has the functions of preheating and stirring, can avoid the agglomeration of materials inside the hopper, and can improve the processing efficiency and other advantages, and can effectively solve the problems in the background art.

[0010] (2) Technical Solutions

[0011] To achieve the above object, the technical solution adopted by the utility model is as follows: A raw material heating device for polytetrafluoroethylene production, including a bracket, a first motor is fixedly installed at the rear end of the outer surface of the upper end of the bracket, one end of the outer surface of the first motor is fixedly connected with a spiral heating and extrusion pipe, a hopper is fixedly installed at one end of the outer surface of the upper end of the spiral heating and extrusion pipe close to the first motor, a heat preservation cover is fixedly installed on the outer wall of the upper part of the hopper, a heating belt is arranged inside the heat preservation cover, and the heating belt is wound around the outer wall of the upper part of the hopper. An inlet is arranged on one side of the outer surface of the upper end of the hopper, and a stirring assembly is installed on the upper part of the hopper. The stirring assembly includes a transmission box, a second motor, a driving shaft, a spiral blade, a driven shaft, a disperser, a first gear and a second gear. The transmission box is fixedly installed in the middle of the outer surface of the upper end of the heat preservation cover, and the second motor is fixedly installed in the middle of the outer surface of the upper end of the transmission box.

[0012] Preferably, the number of the second gears and the driven shafts are both two groups. The first gear and the second gears are both located inside the transmission box. The driving shaft is connected to the lower end of the output shaft of the second motor on the outer surface. The two driven shafts are located on both sides of the driving shaft.

[0013] Preferably, the disperser is fixedly installed on the outer wall of the lower part of the driven shaft, the spiral blade is fixedly installed on the outer wall of the lower part of the driving shaft, the middle of the lower end of the second gear is fixedly connected to the upper end of the driven shaft on the outer surface, and the first gear is fixedly installed on the outer wall of the upper part of the driving shaft.

[0014] Preferably, the two second gears are located on both sides of the first gear, and the first gear meshes with the two second gears.

[0015] Preferably, sealing bearings are arranged between the driven shaft and the transmission box and the hopper respectively. The driven shaft is rotationally connected to the transmission box and the hopper through the sealing bearings.

[0016] Preferably, a coupling is arranged between the driving shaft and the second motor. The upper end of the driving shaft is fixedly connected to the lower end of the output shaft of the second motor through the coupling. Sealing bearings are arranged between the driving shaft and the transmission box and the hopper respectively. The driving shaft is rotationally connected to the transmission box and the hopper through the sealing bearings.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a raw material heating device for polytetrafluoroethylene production, which has the following beneficial effects:

[0019] 1. For the raw material heating device for polytetrafluoroethylene production, through the arranged heating belt, it is convenient to preheat the materials inside the hopper, reduce the heating time of the materials inside the spiral heating and extrusion pipe, and improve the production efficiency.

[0020] 2. The raw material heating device for polytetrafluoroethylene production is equipped with a stirring assembly, which facilitates the stirring of the materials inside the hopper, avoids material caking, and makes the materials inside the hopper be heated more evenly when preheated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the raw material heating device for polytetrafluoroethylene production of the present utility model.

[0022] Figure 2 It is a schematic diagram of the partial structure of the raw material heating device for polytetrafluoroethylene production of the present utility model.

[0023] Figure 3 It is a schematic diagram of the structure of the stirring assembly in the raw material heating device for polytetrafluoroethylene production of the present utility model.

[0024] Figure 4 It is a schematic diagram of the internal structure of the transmission box in the raw material heating device for polytetrafluoroethylene production of the present utility model.

[0025] In the figure: 1. Support; 2. First motor; 3. Spiral heating extrusion pipe; 4. Heat preservation cover; 5. Feeding port; 6. Stirring assembly; 7. Hopper; 8. Heating belt; 9. Transmission box; 10. Second motor; 11. Driving shaft; 12. Spiral blade; 13. Driven shaft; 14. Disperser; 15. First gear; 16. Second gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] This embodiment is a raw material heating device for polytetrafluoroethylene production.

[0028] Such as Figures 1-4As shown in the figure, it includes a bracket 1. At the rear end of the outer surface of the upper end of the bracket 1, a first motor 2 is fixedly installed. One end of the outer surface of the first motor 2 is fixedly connected to a spiral heating extrusion tube 3. At one end of the outer surface of the upper end of the spiral heating extrusion tube 3 close to the first motor 2, a hopper 7 is fixedly installed. A heat preservation cover 4 is fixedly installed on the outer wall of the upper part of the hopper 7. A heating belt 8 is arranged inside the heat preservation cover 4, and the heating belt 8 is wound around the outer wall of the upper part of the hopper 7. On one side of the outer surface of the upper end of the hopper 7, a feeding port 5 is arranged. A stirring assembly 6 is installed on the upper part of the hopper 7. The stirring assembly 6 includes a transmission box 9, a second motor 10, a driving shaft 11, a spiral blade 12, a driven shaft 13, a disperser 14, a first gear 15 and a second gear 16. The transmission box 9 is fixedly installed in the middle of the outer surface of the upper end of the heat preservation cover 4, and the second motor 10 is fixedly installed in the middle of the outer surface of the upper end of the transmission box 9.

[0029] The number of the second gears 16 and the driven shafts 13 is two groups each. The first gear 15 and the second gears 16 are both located inside the transmission box 9. The driving shaft connected to the lower end of the output shaft of the second motor 10. The two driven shafts 13 are located on both sides of the driving shaft 11. The disperser 14 is fixedly installed on the outer wall of the lower part of the driven shaft 13. The spiral blade 12 is fixedly installed on the outer wall of the lower part of the driving shaft 11. The middle of the lower end of the second gear 16 is fixedly connected to the upper end of the outer surface of the driven shaft 13. The first gear 15 is fixedly installed on the outer wall of the upper part of the driving shaft 11. The two second gears 16 are located on both sides of the first gear 15, and the first gear 15 meshes with the two second gears 16. Sealed bearings are arranged between the driven shaft 13 and the transmission box 9 and the hopper 7, and the driven shaft 13 is rotatably connected to the transmission box 9 and the hopper 7 through the sealed bearings. A coupling is arranged between the driving shaft 11 and the second motor 10, and the upper end of the outer surface of the driving shaft 11 is fixedly connected to the lower end of the output shaft of the second motor 10 through the coupling. Sealed bearings are arranged between the driving shaft 11 and the transmission box 9 and the hopper 7, and the driving shaft 11 is rotatably connected to the transmission box 9 and the hopper 7 through the sealed bearings.

[0030] It should be noted that the present utility model is a raw material heating device for polytetrafluoroethylene production. The bracket 1, the first motor 2, the spiral heating extrusion tube 3 and the hopper 7 described in the text all belong to the prior art. The material inside the hopper 7 enters the inside of the spiral heating extrusion tube 3 and is heated and extruded inside the spiral heating extrusion tube 3, which can be effectively known to those skilled in the art, and will not be elaborated herein. The provided stirring assembly 6, after the material enters the inside of the hopper 7 through the feeding port 5, the provided stirring assembly 6 drives the driving shaft 11 to rotate through the operation of the second motor 10. The driving shaft 11 drives the first gear 15 to rotate. The first gear 15 meshes with the second gears 16 on both sides. The first gear 15 drives the two driven shafts 13 to rotate through the two second gears 16. The driven shafts 13 drive the disperser 14 to rotate to stir the material inside the hopper 7 and disperse the material inside the hopper 7. The driving shaft 11 drives the spiral blade 12 to rotate, which can realize the turning of the material inside the hopper 7. Through the operation of the disperser 14 and the spiral blade 12, the material inside the hopper 7 is heated more evenly. The provided heating belt 8, the heating belt 8 is externally connected to a controller. The heating belt 8 can heat the hopper 7, and the material inside the hopper 7 is heated, playing a preheating role, so that the heating time of the material entering the inside of the spiral heating extrusion tube 3 is reduced, and the production efficiency is improved.

[0031] It should be noted that in this text, relational terms such as first and second (No. 1, No. 2) are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A raw material heating device for polytetrafluoroethylene production, comprising a bracket (1), a first motor (2) is fixedly installed at the rear end of the outer surface of the upper end of the bracket (1), one end of the outer surface of the first motor (2) is fixedly connected to a spiral heating extrusion pipe (3), and a hopper (7) is fixedly installed at one end of the outer surface of the upper end of the spiral heating extrusion pipe (3) close to the first motor (2), characterized in that: A heat preservation cover (4) is fixedly installed on the outer wall of the upper part of the hopper (7). A heating belt (8) is arranged inside the heat preservation cover (4), and the heating belt (8) is wound around the outer wall of the upper part of the hopper (7). A feeding port (5) is arranged on one side of the outer surface of the upper end of the hopper (7). A stirring assembly (6) is installed on the upper part of the hopper (7). The stirring assembly (6) includes a transmission box (9), a second motor (10), a driving shaft (11), a spiral blade (12), a driven shaft (13), a disperser (14), a first gear (15) and a second gear (16). The transmission box (9) is fixedly installed in the middle of the outer surface of the upper end of the heat preservation cover (4), and the second motor (10) is fixedly installed in the middle of the outer surface of the upper end of the transmission box (9).

2. The raw material heating device for polytetrafluoroethylene production according to claim 1, characterized in that: The number of the second gears (16) and the driven shafts (13) is two groups each. The first gear (15) and the second gears (16) are both located inside the transmission box (9). The driving shaft (11) is connected to the lower outer surface of the output shaft in the second motor (10). The two groups of driven shafts (13) are located on both sides of the driving shaft (11).

3. The raw material heating device for polytetrafluoroethylene production according to claim 2, characterized in that: The disperser (14) is fixedly installed on the outer wall of the lower part of the driven shaft (13). The spiral blade (12) is fixedly installed on the outer wall of the lower part of the driving shaft (11). The middle of the lower outer surface of the second gear (16) is fixedly connected to the upper outer surface of the driven shaft (13). The first gear (15) is fixedly installed on the outer wall of the upper part of the driving shaft (11).

4. The raw material heating device for polytetrafluoroethylene production according to claim 3, characterized in that: The two groups of second gears (16) are located on both sides of the first gear (15), and the first gear (15) meshes with the two groups of second gears (16).

5. The raw material heating device for polytetrafluoroethylene production according to claim 4, characterized in that: Sealed bearings are arranged between the driven shaft (13) and the transmission box (9) and the hopper (7). The driven shaft (13) is rotationally connected to the transmission box (9) and the hopper (7) through the sealed bearings.

6. The raw material heating device for polytetrafluoroethylene production according to claim 5, characterized in that: A coupling is arranged between the driving shaft (11) and the second motor (10). The upper outer surface of the driving shaft (11) is fixedly connected to the lower outer surface of the output shaft in the second motor (10) through the coupling. Sealed bearings are arranged between the driving shaft (11) and the transmission box (9) and the hopper (7). The driving shaft (11) is rotationally connected to the transmission box (9) and the hopper (7) through the sealed bearings.

Images