High-temperature graphite particle pushing device

Abstract

The utility model relates to the technical field of material cooling and pushing, in particular to a high-temperature graphite particle pushing device which comprises a three-way inner pipe, a three-way outer pipe, a piston, a hydraulic oil cylinder system and high-temperature materials, the three-way outer pipe is arranged outside the three-way inner pipe in a sleeved mode, and a cooling cavity used for cooling the high-temperature materials is formed between the three-way outer pipe and the three-way inner pipe. According to the spiral conveyor pushing device, the defects of an existing spiral conveyor are overcome, the pushing device is small in abrasion, the cooling water is arranged between the three-way inner pipe and the three-way outer pipe to cool high-temperature materials, the cooling water is arranged between the three-way inner pipe and the three-way outer pipe to cool the high-temperature materials, the cooling effect is good, and the service life of the high-temperature materials is prolonged. A material pushing part does not need cooling water, the explosion problem cannot be caused, and due to the fact that the piston makes intermittent contact with the materials, the piston is heated less, nitrogen protection is achieved, and the piston is not prone to being burnt out; the piston does not have cooling water, so that the danger of water leakage is avoided; the material outlet, the material inlet and the midway drift diameter are equal, and the material is not prone to being blocked by large materials.

Description

Technical Field

[0001] The utility model relates to the technical field of material cooling and pushing, in particular to a high-temperature graphite particle pushing device. Background Art

[0002] At present, the well-known high-temperature solid particle or powder conveying device adopts a water-cooled screw conveyor. The core structure of this conveyor is to weld a hollow spiral blade on a hollow rod. Cooling water enters from one end of the hollow rod, flows into the hollow spiral blade from the other end, and then flows out from the other end of the hollow spiral blade. The outer shell of this conveyor is also a jacket, and cooling water flows in the jacket. The other parts are the same as conventional screw conveyors.

[0003] However, this type of screw conveyor has the following problems during operation: 1. It is easy to get stuck when there are large pieces of material; 2. The hollow rod and hollow spiral blades are buried in the high-temperature material, and they are strongly rubbed against the high-temperature material during rotation, which makes them easy to wear. Once worn, the cooling water will be immediately heated and vaporized by the high-temperature material, and the pressure will rise sharply, causing an explosion. If used for conveying furnace materials in the graphitization furnace system, the graphite temperature is as high as 1500℃. Once there is a water leak, not only will the pressure rise sharply, but the high-temperature carbon will react with water to generate carbon monoxide and hydrogen. This gas is not only toxic and harmful, but also very easy to form explosive gas, causing greater harm. Utility Model Content

[0004] The purpose of the utility model is to provide a high-temperature graphite particle pushing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-temperature graphite particle pushing device comprises a three-way inner tube, a three-way outer tube, a piston, a hydraulic cylinder system and a high-temperature material. The three-way outer tube is sleeved on the outside of the three-way inner tube, and a cooling cavity for cooling the high-temperature material is formed between the three-way outer tube and the three-way inner tube. The cooling cavity is filled with cooling water, and a cooling inlet / outlet for circulating cooling water is opened on the three-way outer tube.

[0007] As a preferred solution of the utility model, the piston is located inside one end of the horizontal section of the three-way inner tube, the hydraulic cylinder system includes a hydraulic cylinder, the output end of the hydraulic cylinder is connected to the piston, and the outside of the hydraulic cylinder is connected to one end of the three-way inner tube close to the piston through a fixed plate.

[0008] As a preferred solution of the utility model, a wear-resistant slide is arranged inside the three-way inner tube located at the bottom of the piston, and a connecting plate is arranged inside the three-way inner tube located at the top of the piston. A ventilation groove is opened on the connecting plate, and the piston slides on the wear-resistant slide.

[0009] As a preferred solution of the utility model, the interior of the fixed plate between the output end of the hydraulic cylinder and the piston is filled with nitrogen, and a nitrogen inlet is provided at the bottom of the fixed plate.

[0010] As a preferred solution of the utility model, the top of the three-way inner tube and the three-way outer tube are connected to the external material feed pipe through a connecting seal, and the high-temperature material enters from the vertical section at the top of the three-way inner tube.

[0011] As a preferred solution of the utility model, the diameter of the vertical section at the top of the tee inner pipe is the same as the diameter of the horizontal section.

[0012] As a preferred solution of the utility model, the hydraulic cylinder is connected with a high-pressure oil pump, a reversing valve, a throttle valve and a limit switch, which are used to adjust the frequency and stroke of the hydraulic cylinder piston rod pushing the piston to reciprocate left and right, so as to realize the quantitative feeding function.

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

[0014] In response to the problems raised in the background technology, the present application overcomes the shortcomings of existing screw conveyors. The pushing device has little wear and tear. By arranging cooling water between the inner tube and the outer tube of the tee to cool down the high-temperature material, the parts that push the material do not need cooling water, and will not cause explosion problems. Since the piston is in intermittent contact with the material, the piston is less heated and is protected by nitrogen, so it is not easily burned; the piston has no cooling water and there is no risk of water leakage; the material outlet is equal to the inlet and the mid-way diameter, and it is not easy to be stuck by large pieces of material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall cross-sectional view of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the hydraulic cylinder system and the piston of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0018] In the figure: 1. three-way inner tube; 2. three-way outer tube; 3. piston; 4. hydraulic cylinder system; 41. hydraulic cylinder; 42. fixing plate; 421. nitrogen inlet; 5. high-temperature material; 6. cooling water; 7. wear-resistant slideway; 8. connecting plate; 81. ventilation groove; 9. connecting seal; 10. feed pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0020] Example

[0021] See also Figure 1-3 The utility model provides a technical solution: a high-temperature graphite particle pushing device, including a three-way inner tube 1, a three-way outer tube 2, a piston 3, a hydraulic cylinder system 4 and a high-temperature material 5. The three-way outer tube 2 is sleeved on the outside of the three-way inner tube 1, and a cooling cavity for cooling the high-temperature material 5 is formed between the three-way outer tube 2 and the three-way inner tube 1. The cooling cavity is filled with cooling water 6. The three-way outer tube 2 is provided with a cooling inlet / outlet for the circulation of cooling water 6. The diameter of the vertical section at the top of the three-way inner tube 1 is the same as the diameter of the horizontal section.

[0022] It should be noted that the present application overcomes the shortcomings of existing screw conveyors. The pushing device has little wear and tear. By arranging cooling water 6 between the tee inner tube 1 and the tee outer tube 2 to cool the high-temperature material 5, the components that push the material do not use cooling water 6, and will not cause explosion problems. Since the piston 3 is in intermittent contact with the material, the piston 3 is less heated and is protected by nitrogen, it is not easy to be burned; the piston 3 does not have cooling water 6, and there is no risk of water leakage; the material outlet is equal to the inlet and the mid-way diameter, and it is not easy to be stuck by large pieces of material.

[0023] See also Figure 2 and 3 The piston 3 is located inside one end of the horizontal section of the three-way inner tube 1. The hydraulic cylinder system 4 includes a hydraulic cylinder 41. The output end of the hydraulic cylinder 41 is connected to the piston 3. The outside of the hydraulic cylinder 41 is connected to the end of the three-way inner tube 1 close to the piston 3 through a fixed plate 42; a wear-resistant slide 7 is arranged inside the three-way inner tube 1 at the bottom of the piston 3, and a connecting plate 8 is arranged inside the three-way inner tube 1 at the top of the piston 3. A ventilation groove 81 is opened on the connecting plate 8, and the piston 3 slides on the wear-resistant slide 7; the hydraulic cylinder The interior of the fixed plate 42 between the output end 41 and the piston 3 is filled with nitrogen, and a nitrogen inlet 421 is provided at the bottom of the fixed plate 42; the top of the three-way inner tube 1 and the three-way outer tube 2 are connected to the external material feed pipe 10 through a connecting seal 9, and the high-temperature material 5 enters from the vertical section at the top of the three-way inner tube 1; the hydraulic cylinder 41 is connected with a high-pressure oil pump, a reversing valve, a throttle valve and a limit switch, which are used to make the frequency and stroke of the piston rod of the hydraulic cylinder 41 push the piston 3 to reciprocate left and right and adjustable.

[0024] It should be noted that, in this embodiment, the piston 3 is made of high temperature resistant material, and the piston 3 is pushed and pulled by the hydraulic cylinder system 4 to reciprocate left and right. The hydraulic cylinder 41 is connected with a high-pressure oil pump, a reversing valve, a throttle valve and a limit switch. The high-pressure oil flow provided by the high-pressure oil pump can push the reversing valve to change direction, and the throttle valve can control the oil flow, thereby affecting the moving speed and moving stroke of the hydraulic cylinder 41. The limit switch can prevent the stroke of the hydraulic cylinder 41 from exceeding a preset range, thereby protecting the safe operation of the system.

[0025] Furthermore, the high-temperature material 5 enters from the vertical section at the top of the tee inner tube 1. By utilizing the characteristic of the solid material having a repose angle, the high-temperature material 5 entering the horizontal tube will not flow out to the side of the tee horizontal tube away from the piston 3, and will only move when the piston 3 is pushed to one side, thereby achieving the function of pushing the material, and the speed of conveying the material is controllable;

[0026] Furthermore, several shallow ventilation grooves 81 are provided on the connecting plate 8 at the top of the piston 3 to reduce air resistance when the piston 3 moves toward the hydraulic cylinder 41;

[0027] Furthermore, the interior of the fixed plate 42 between the output end of the hydraulic cylinder 41 and the piston 3 is filled with nitrogen, and a nitrogen inlet 421 is provided at the bottom of the fixed plate 42. When the piston 3 moves toward the material outlet side, the hot air on the outlet side does not flow into one end of the hydraulic cylinder 41, and the piston connecting parts and the cylinder rod are cooled at the same time;

[0028] Furthermore, a wear-resistant slideway 7 is provided inside the three-way inner tube 1 at the bottom of the piston 3, and the piston 3 slides on the wear-resistant slideway 7. The wear-resistant slideway 7 is installed below the piston 3 to protect the inner sleeve of the three-way inner tube 1 from wear;

[0029] The present application overcomes the shortcomings of existing screw conveyors. The pushing device has little wear and tear. By arranging cooling water 6 between the tee inner tube 1 and the tee outer tube 2 to cool the high-temperature material 5, the component that pushes the material does not need cooling water 6, and will not cause explosion problems. Since the piston 3 is in intermittent contact with the material, the piston 3 is less heated and is protected by nitrogen and is not easily burned; the piston 3 does not have cooling water 6, and there is no risk of water leakage; the material outlet is equal to the inlet and the mid-way diameter, and is not easily stuck by large pieces of material.

[0030] The utility model workflow:

[0031] When in use, cooling water 6 is set between the three-way inner tube 1 and the three-way outer tube 2 to cool down the high-temperature material 5. The piston 3 is pushed and pulled by the hydraulic cylinder system 4 to reciprocate left and right. The hydraulic cylinder 41 is connected with a high-pressure oil pump, a reversing valve, a throttle valve and a limit switch. The high-pressure oil flow provided by the high-pressure oil pump can push the reversing valve to change direction. The throttle valve can control the oil flow rate, thereby affecting the moving speed and moving stroke of the hydraulic cylinder 41. The limit switch can prevent the stroke of the hydraulic cylinder 41 from exceeding the preset range to protect the safe operation of the system. The high-temperature material 5 enters from the top vertical section of the three-way inner tube 1. By utilizing the characteristic of the repose angle of solid materials, the high-temperature material 5 entering the horizontal tube will not flow out to the side of the three-way horizontal tube away from the piston 3. The piston 3 will move only when it is pushed to one side, thereby achieving the function of pushing materials, and the speed of conveying materials is controllable. Several shallow ventilation grooves 81 are opened on the connecting plate 8 at the top of the piston 3. When the piston 3 moves to one side of the hydraulic cylinder 41, the air resistance is reduced. The fixed plate 42 between the output end of the hydraulic cylinder 41 and the piston 3 is filled with nitrogen, and a nitrogen inlet 421 is provided at the bottom of the fixed plate 42. When the piston 3 moves to the material outlet side, the hot air on the outlet side does not rush into one end of the hydraulic cylinder 41, and the piston connecting parts and the cylinder rod are cooled at the same time. A wear-resistant slide 7 is provided inside the three-way inner tube 1 at the bottom of the piston 3, and the piston 3 slides on the wear-resistant slide 7. The wear-resistant slide 7 is installed under the piston 3 to protect the inner sleeve of the three-way inner tube 1 from wear.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature graphite particle pushing device, comprising a three-way inner tube (1), a three-way outer tube (2), a piston (3), a hydraulic cylinder system (4) and a high-temperature material (5), characterized in that: The three-way outer tube (2) is sleeved on the outside of the three-way inner tube (1), and a cooling cavity for cooling the high-temperature material (5) is formed between the three-way outer tube (2) and the three-way inner tube (1). The cooling cavity is filled with cooling water (6), and the three-way outer tube (2) is provided with a cooling inlet / outlet for the cooling water (6) to circulate.

2. The high temperature graphite particle pushing device according to claim 1, characterized in that: The piston (3) is located inside one end of the horizontal section of the three-way inner tube (1); the hydraulic cylinder system (4) comprises a hydraulic cylinder (41); the output end of the hydraulic cylinder (41) is connected to the piston (3); the outside of the hydraulic cylinder (41) is connected to one end of the three-way inner tube (1) close to the piston (3) via a fixing plate (42).

3. The high temperature graphite particle pushing device according to claim 1, characterized in that: A wear-resistant slideway (7) is arranged inside the three-way inner tube (1) at the bottom of the piston (3), a connecting plate (8) is arranged inside the three-way inner tube (1) at the top of the piston (3), a ventilation groove (81) is provided on the connecting plate (8), and the piston (3) slides on the wear-resistant slideway (7).

4. The high temperature graphite particle pushing device according to claim 2, characterized in that: The interior of the fixed plate (42) between the output end of the hydraulic cylinder (41) and the piston (3) is filled with nitrogen, and a nitrogen inlet (421) is provided at the bottom of the fixed plate (42).

5. The high temperature graphite particle pushing device according to claim 1, characterized in that: The tops of the three-way inner tube (1) and the three-way outer tube (2) are connected to an external material feed pipe (10) via a connecting seal (9), and the high-temperature material (5) enters from the vertical section at the top of the three-way inner tube (1).

6. The high temperature graphite particle pushing device according to claim 1, characterized in that: The diameter of the vertical section at the top of the three-way inner pipe (1) is the same as the diameter of the horizontal section.

7. The high temperature graphite particle pushing device according to claim 4, characterized in that: The hydraulic cylinder (41) is connected to a high-pressure oil pump, a reversing valve, a throttle valve and a limit switch, and is used to enable the piston rod of the hydraulic cylinder (41) to push the piston (3) to perform left and right reciprocating motion, and the frequency and stroke are adjustable.

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