Chemical equipment for negative-pressure-resistant electrostatic spraying of tetrafluoro lining

Abstract

The utility model relates to the technical field of chemical equipment, and discloses chemical equipment for negative-pressure-resistant electrostatic spraying of a tetrafluoro lining, which comprises a chemical tank body, a discharge pipe is mounted at the lower end of the chemical tank body, a tank cover is mounted at the upper end of the chemical tank body, a feed pipe is mounted at the upper end of the tank cover, and a discharge pipe is mounted at the lower end of the feed pipe. Teflon coatings are laid on the inner wall of the chemical tank body and the inner wall of the tank cover, a conical cover is installed in the chemical tank body, and a buffer ring is installed at the position, below the conical cover, in the chemical tank body. Teflon paint is coated on the inner walls of the chemical tank body and the tank cover in an electrostatic spraying mode, so that a lining of the Teflon paint is formed, the negative pressure resistance, the high temperature resistance and the strong acid and strong alkali resistance of the chemical tank are improved, the conical cover and the buffer ring can bear chemical raw materials falling from a high position, and the service life of the chemical tank is prolonged. Chemical raw materials are prevented from directly impacting the teflon coating on the inner wall of the lower end of the chemical tank body, so that abrasion of the teflon coating is avoided, and the service life of the teflon coating is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to chemical equipment with negative pressure-resistant electrostatic spraying of polyfluoro lining. Background Art

[0002] In the chemical industry, there are many materials that are highly corrosive, such as sulfuric acid and hydrochloric acid. Therefore, anti-corrosion materials need to be added to the inner walls of chemical equipment. The anti-corrosion performance of the existing technology is not strong and is not stable enough during use.

[0003] A Chinese patent discloses a chemical equipment with negative pressure-resistant electrostatic spraying of PTFE lining (authorization announcement number CN206778409U). The patent technology sets a first PTFE lining on the inner surface of the upper head, a second PTFE lining on the inner surface of the cylinder, and a third PTFE lining on the inner surface of the lower head, so that the chemical equipment has better anti-corrosion performance and is more stable in use;

[0004] However, it has certain drawbacks: when chemical materials are discharged into the cylinder through a high feed pipe, the impact force directly acts on the inner wall of the lower head, which can easily wear the third tetrafluoroethylene lining on the inner wall of the lower head, affecting the service life of the third tetrafluoroethylene lining. Utility Model Content

[0005] The utility model aims to provide a chemical equipment for electrostatically spraying polyfluoro lining with negative pressure resistance, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining, comprising a chemical tank body, a discharge pipe is installed at the lower end of the chemical tank body, and a tank cover is installed at the upper end of the chemical tank body, a feed pipe is installed at the upper end of the tank cover, the inner walls of the chemical tank body and the tank cover are both coated with polytetrafluoroethylene coating, a conical cover is installed inside the chemical tank body, a skirt is installed on the outer surface of the conical cover, and a first connecting piece is arranged at the upper end of the conical cover, a buffer ring is installed inside the chemical tank body below the conical cover, and second connecting pieces are arranged at both left and right ends of the lower surface of the buffer ring.

[0008] As a further solution of the utility model: the first connecting member includes a connecting plate, and connecting bolts are movably connected to the left and right ends of the upper surface of the connecting plate, and the lower end of the connecting bolt is threadedly connected to the first connecting rod, and the outside of the first connecting rod is movably connected to the first connecting sleeve, and the lower end of the first connecting sleeve is equipped with a first connecting block.

[0009] As a further solution of the utility model: the second connecting member includes a second connecting sleeve, a second connecting block is installed at the lower end of the second connecting sleeve, and a spring is installed on the inner lower surface of the second connecting sleeve, and a second connecting rod is installed at the upper end of the spring.

[0010] As a further solution of the utility model: the outer diameter of the skirt is larger than the inner diameter of the buffer ring, and the outer diameter of the skirt is smaller than the outer diameter of the buffer ring.

[0011] As a further solution of the utility model: the upper end of the conical cover is installed on the lower surface of the connecting plate, the first connecting rod is located below the connecting plate, and one end of the first connecting block is installed on the inner side surface of the chemical tank body.

[0012] As a further solution of the utility model: one end of the second connecting block is installed on one side surface of the interior of the chemical tank body, the second connecting rod is slidably connected to the interior of the second connecting sleeve, and the upper end of the second connecting rod is installed on the lower surface of the buffer ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model applies PTFE coating on the inner wall of the chemical tank body and the tank cover by electrostatic spraying, thereby forming a PTFE coating lining, which improves the negative pressure resistance, high temperature resistance, strong acid and alkali resistance of the chemical tank.

[0015] 2. The utility model is provided with a conical cover and a buffer ring, which can withstand the chemical raw materials falling from a height, thereby preventing the chemical raw materials from directly impacting the polytetrafluoroethylene coating on the inner wall of the lower end of the chemical tank body, thereby avoiding the wear of the polytetrafluoroethylene coating and extending its service life; the spring buffers the buffer ring, reducing the impact force of the material on it, making it less likely to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining;

[0017] Figure 2 It is a cross-sectional view of a chemical equipment with negative pressure resistant electrostatic spraying of PTFE lining;

[0018] Figure 3 This is a schematic diagram of the structure of a conical cover in a chemical equipment with negative pressure-resistant electrostatic spraying of polyfluoro lining;

[0019] Figure 4 This is a schematic diagram of the structure of a buffer ring in a chemical equipment with negative pressure-resistant electrostatic spraying of polyfluoro lining;

[0020] Figure 5This is an exploded view of the first connector in a chemical equipment with negative pressure-resistant electrostatic spraying of polyfluoro lining;

[0021] Figure 6 This is an exploded view of the second connecting piece in a chemical equipment with negative pressure resistant electrostatic spraying polyfluoro lining.

[0022] In the figure: 1. chemical tank body; 2. discharge pipe; 3. tank cover; 4. feed pipe; 5. PTFE coating; 6. conical cover; 7. skirt; 8. first connecting piece; 9. connecting plate; 10. connecting bolt; 11. first connecting rod; 12. first connecting sleeve; 13. first connecting block; 14. buffer ring; 15. second connecting piece; 16. second connecting sleeve; 17. second connecting block; 18. spring; 19. second connecting rod. DETAILED DESCRIPTION

[0023] See also Figure 1 and Figure 2 In the embodiment of the utility model, a chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining comprises a chemical tank body 1, a discharge pipe 2 is installed at the lower end of the chemical tank body 1, and a tank cover 3 is installed at the upper end of the chemical tank body 1, and a feed pipe 4 is installed at the upper end of the tank cover 3, and the inner walls of the chemical tank body 1 and the tank cover 3 are both coated with polytetrafluoroethylene coating 5;

[0024] The space between the chemical tank body 1 and the tank cover 3 can be opened;

[0025] The PTFE coating 5 is a coating formed by electrostatically spraying the PTFE coating on the inner wall of the chemical tank body 1 and the tank cover 3;

[0026] The PTFE coating 5 forms an inner lining inside the chemical tank, which improves the negative pressure resistance, corrosion resistance and impact resistance of the entire chemical tank; the electrostatic spraying makes the coating not easy to fall off, ensuring that the pressure resistance of the chemical tank is not affected;

[0027] The discharge pipe 2 is used for discharging materials, and a valve can be installed inside the discharge pipe 2; the feed pipe 4 is used for feeding materials.

[0028] exist Figure 2 , Figure 3 and Figure 5 Middle: A conical cover 6 is installed inside the chemical tank body 1, a skirt 7 is installed on the outer surface of the conical cover 6, and a first connecting member 8 is provided at the upper end of the conical cover 6, the first connecting member 8 includes a connecting plate 9, the upper end of the conical cover 6 is installed on the lower surface of the connecting plate 9, and the left and right ends of the upper surface of the connecting plate 9 are movably connected with connecting bolts 10, the lower end of the connecting bolt 10 is threadedly connected with a first connecting rod 11, the first connecting rod 11 is located below the connecting plate 9, the outside of the first connecting rod 11 is movably connected with a first connecting sleeve 12, the lower end of the first connecting sleeve 12 is installed with a first connecting block 13, and one end of the first connecting block 13 is installed on one side surface of the inner side of the chemical tank body 1;

[0029] The diameter of the conical cover 6 gradually increases from top to bottom, and it is used to bear the falling chemical materials to prevent the materials from directly impacting the inner wall of the lower end of the chemical tank body 1 and causing wear of the PTFE coating 5;

[0030] Directly pulling the connecting plate 9 upwards can drive the conical cover 6 to move upwards, making it easy to remove and maintain it.

[0031] exist Figure 2 , Figure 4 and Figure 6 Middle: A buffer ring 14 is installed inside the chemical tank body 1 below the conical cover 6, the outer diameter of the skirt 7 is larger than the inner diameter of the buffer ring 14, and the outer diameter of the skirt 7 is smaller than the outer diameter of the buffer ring 14, and the left and right ends of the lower surface of the buffer ring 14 are provided with second connecting members 15, the second connecting member 15 includes a second connecting sleeve 16, a second connecting block 17 is installed at the lower end of the second connecting sleeve 16, one end of the second connecting block 17 is installed on one side surface of the inner part of the chemical tank body 1, a spring 18 is installed on the inner lower surface of the second connecting sleeve 16, a second connecting rod 19 is installed on the upper end of the spring 18, the second connecting rod 19 is slidably connected to the inside of the second connecting sleeve 16, and the upper end of the second connecting rod 19 is installed on the lower surface of the buffer ring 14;

[0032] The buffer ring 14 is used to withstand the chemical materials falling from the surface of the conical cover 6, further preventing the chemical materials from directly impacting the lower inner wall of the chemical tank body 1;

[0033] The spring 18 plays a buffering role and protects the buffer ring 14 .

[0034] The working principle of the utility model is: first, using the process of electrostatic spraying, the polyfluoro coating is sprayed onto the inner walls of the chemical tank body 1 and the tank cover 3 to form a polyfluoro coating 5, and then maintained for a period of time; when in use, the chemical material is discharged into the interior of the chemical tank body 1 through the feed pipe 4, and the material first falls on the surface of the conical cover 6, then slides to the surface of the skirt 7, then falls on the surface of the buffer ring 14, and finally falls to the bottom end of the chemical tank body 1, avoiding the direct impact of the material falling from a high place on the lower inner wall of the chemical tank body 1, thereby protecting the polyfluoro coating 5 on the lower inner wall of the chemical tank body 1.

[0035] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chemical equipment with negative pressure resistant electrostatic spraying polyfluoro lining, comprising a chemical tank body (1), a discharge pipe (2) is installed at the lower end of the chemical tank body (1), and a tank cover (3) is installed at the upper end of the chemical tank body (1), and a feed pipe (4) is installed at the upper end of the tank cover (3), and the inner walls of the chemical tank body (1) and the tank cover (3) are both coated with polyfluoro coating (5), characterized in that: A conical cover (6) is installed inside the chemical tank body (1), a skirt (7) is installed on the outer surface of the conical cover (6), and a first connecting piece (8) is arranged at the upper end of the conical cover (6). A buffer ring (14) is installed inside the chemical tank body (1) below the conical cover (6), and second connecting pieces (15) are arranged at both left and right ends of the lower surface of the buffer ring (14).

2. According to claim 1, a chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining is characterized in that: The first connecting member (8) comprises a connecting plate (9), the left and right ends of the upper surface of the connecting plate (9) are movably connected with connecting bolts (10), the lower end of the connecting bolt (10) is threadedly connected with a first connecting rod (11), the outside of the first connecting rod (11) is movably connected with a first connecting sleeve (12), and the lower end of the first connecting sleeve (12) is installed with a first connecting block (13).

3. The chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining according to claim 1 is characterized in that: The second connecting member (15) comprises a second connecting sleeve (16), a second connecting block (17) is installed at the lower end of the second connecting sleeve (16), a spring (18) is installed on the inner lower surface of the second connecting sleeve (16), and a second connecting rod (19) is installed at the upper end of the spring (18).

4. The chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining according to claim 1 is characterized in that: The outer diameter of the skirt (7) is greater than the inner diameter of the buffer ring (14), and the outer diameter of the skirt (7) is smaller than the outer diameter of the buffer ring (14).

5. The chemical equipment for negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining according to claim 2 is characterized in that: The upper end of the conical cover (6) is mounted on the lower surface of the connecting plate (9), the first connecting rod (11) is located below the connecting plate (9), and one end of the first connecting block (13) is mounted on a side surface of the interior of the chemical tank body (1).

6. The chemical equipment with negative pressure resistant electrostatic spraying of polytetrafluoroethylene lining according to claim 3 is characterized in that: One end of the second connecting block (17) is mounted on a side surface of the interior of the chemical tank body (1), the second connecting rod (19) is slidably connected to the interior of the second connecting sleeve (16), and the upper end of the second connecting rod (19) is mounted on the lower surface of the buffer ring (14).

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