Powder conveying device

Abstract

The utility model belongs to the technical field of pipeline conveying, and particularly relates to a powder conveying device which comprises a conveying pipe and a sedimentation supporting pipe, a negative pressure suction fan is arranged at the discharging end of the conveying pipe, the upper end of the sedimentation supporting pipe is fixedly connected to the conveying pipe, and the lower end of the sedimentation supporting pipe is supported on the horizontal plane. A discharging pipe is arranged on one side of the sedimentation supporting pipe, the conveying pipe is connected to the grate cooler through a hot air pipe, a ventilation pipe is arranged on the sedimentation supporting pipe, and a wind shield is arranged at the position of the ventilation pipe in an openable and closable mode. Hot air generated by heat exchange of the grate cooler is used for replacing a hot-air blower, due to the fact that the temperature of the hot air generated by the grate cooler is high, powder is prone to being excessively dried, the ventilation pipe is arranged to introduce natural air into the material conveying pipe for cooling, the size of the ventilation pipe shielded by the wind shield is adjusted according to the temperature measured by the material conveying pipe, and then the ventilation quantity is changed. And the air inlet amount can be controlled by adjusting the air baffle, and long-time overheating of the conveying pipe is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline transportation, and particularly relates to a powder material transportation device. Background Art

[0002] During the powder conveying process, a negative pressure blower is installed at one end of the conveying pipe to pump the powder from one end to the other. To ensure smooth powder conveying, hot air needs to be introduced into the conveying pipe. The hot air not only assists in powder conveying but also dries the powder. Existing technologies often use a separate hot air blower to supply air to the conveying pipe, which is costly. Furthermore, after the hot air enters the conveying pipe, the temperature inside the pipe needs to be controlled. If high temperatures are reached, the system will alarm. Currently, the main method is to add a blower to introduce natural air to cool the pipe. However, the sedimentation of the powder shortens the life of the blower, and the installation and maintenance costs of the blower are high. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a powder conveying device that utilizes hot air generated by heat exchange of a grate cooler to convey powder, facilitates adjustment of the natural wind intake volume, and has low cost.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a powder conveying device, comprising a conveying pipe and a sedimentation support pipe, the upper end of the sedimentation support pipe is fixedly connected to the conveying pipe, the lower end of the sedimentation support pipe is supported on a horizontal plane, a discharge pipe is provided on one side of the sedimentation support pipe, the conveying pipe is connected to the grate cooler through a hot air pipe, a ventilation pipe is provided on the sedimentation support pipe, and a windshield is provided on the ventilation pipe that can be opened and closed;

[0005] An adjustment slot is provided on the pipe wall of the ventilation pipe, and a wind shield passes through the adjustment slot and enters the ventilation pipe. The wind shield is connected to a ventilation adjustment component that drives the wind shield to swing.

[0006] Preferably, a transverse branch pipe is provided on one side of the lower portion of the settlement support pipe, a mounting plate is provided at the opening of the transverse branch pipe, the ventilation pipe and the discharge pipe are both provided on the mounting plate, and the ventilation adjustment assembly is connected to the mounting plate.

[0007] Preferably, the ventilation adjustment assembly includes a connecting rod and an adjustment rod, one end of the connecting rod is fixedly connected to the wind shield, and one end of the connecting rod is hinged to the outside of the adjustment slot, the other end of the connecting rod is hinged to one end of the adjustment rod, and the other end of the adjustment rod is provided with a lifting adjustment assembly.

[0008] Preferably, the lifting adjustment assembly includes a fixing bolt and a fixing nut, and a plurality of adjustment holes are arranged on the adjustment rod at intervals along the length direction. The fixing bolt is connected to the settlement support tube, and the fixing bolt passes through the adjustment hole and is fixed by the fixing nut.

[0009] Preferably, the fixing bolt is connected to the settlement support tube through a fixing seat, one end of the fixing seat is fixedly connected to the settlement support tube, the other end of the fixing seat is bent, and a through hole is provided at the other end of the fixing seat, one end of the fixing bolt passes through the through hole and the adjustment hole, the other end of the fixing bolt is provided on one side of the through hole, and the fixing nut is threadedly connected to one end of the fixing bolt.

[0010] Preferably, a filter is provided at the ventilation pipe.

[0011] Preferably, a support seat and a support frame are fixedly provided on the lower side of the hot air pipe, the upper side of the support seat is arranged corresponding to the outer pipe wall of the hot air pipe and supported on the lower side of the hot air pipe, the support seat is fixedly provided on the support frame, and the support frame is supported on a horizontal plane.

[0012] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0013] 1. This utility model uses the hot air generated by the heat exchange of the grate cooler instead of the hot air blower, utilizing the heat energy of the grate cooler. However, since the hot air generated by the grate cooler is relatively hot and sometimes triggers an alarm due to high temperature, a ventilation duct is set to introduce natural air into the feed pipe to cool it down. The size of the windshield covering the ventilation duct is adjusted according to the temperature measured by the feed pipe, thereby changing the ventilation volume. By adjusting the windshield, the air intake volume can be controlled, which is convenient to adjust and has low equipment cost. The ventilation duct is set on the settlement support pipe for convenient operation.

[0014] 2. Adjust the position of the adjustment rod up and down to make the wind shield rotate around the hinge point at one end of the connecting rod to open and close, adjust the size of the ventilation pipe, set the fixing seat, and make the fixing bolt stuck on the fixing seat. Move the fixing bolt to pull it out of the adjustment hole. Adjust the position of the adjustment rod up and down and then push the fixing bolt into the adjustment hole. Then tighten the fixing nut to fix it. It is easy to use.

[0015] 3. The feed pipe is supported by a sedimentation support pipe to prevent it from collapsing and breaking. The hot air pipe itself has a certain weight. Secondly, there will be a certain amount of powder in the hot air blown out by the grate cooler. In addition, some powder will fall from the upper end of the hot air pipe to the bottom, increasing the weight of the hot air pipe. Therefore, a support seat and a support frame are set on the lower side of the hot air pipe to prevent the hot air pipe from collapsing and breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the ventilation adjustment component.

[0018] Among them: 1. grate cooler 2. hot air pipe 3. feed pipe 4. sedimentation support pipe 5. mounting plate 6. discharge pipe 7. ventilation pipe 8. support frame 9. support seat 10. adjustment slot 11. wind shield 12. fixing block 13. connecting rod 14. adjusting rod 15. pin 16. adjustment hole 17. fixing bolt 18. fixing nut 19. fixing seat 20. filter screen 21. thermocouple. DETAILED DESCRIPTION

[0019] Figures 1 and 2 This is the best embodiment of the present invention, Figures 1 and 2 The utility model is further described.

[0020] like Figure 1 As shown, a powder conveying device of the present invention includes a conveying pipe 3 and a sedimentation support pipe 4. A negative pressure fan is provided at the discharge end of the conveying pipe 3. The negative pressure fan draws the powder from one end of the conveying pipe 3 to the other end. When the powder is conveyed, hot air needs to be introduced into the conveying pipe 3, which can not only convey the powder but also preliminarily dry the powder. In the present invention, the grate cooler 1 is connected to the feed pipe 3 through the hot air pipe 2. When the grate cooler 1 cools the powder, it exchanges heat with the powder, and the hot air generated is connected to the feed pipe 3. The heat source of the grate cooler 1 is used instead of the hot air blower to save resources. The upper end of the sedimentation support pipe 4 is fixedly connected to the feed pipe 3, and the lower end of the sedimentation support pipe 4 is supported on a horizontal plane. The feed pipe 3 transports the powder. The length of the feed pipe 3 is long and the weight of the powder is large. Therefore, the sedimentation support pipe 4 is supported at the bend of the feed pipe 3 to prevent it from collapsing and breaking. The sedimentation support pipe 4 can also settle the powder in the hot air of the small amount of material. The material is provided with a discharge pipe 6 on one side of the sedimentation support pipe 4. After the powder in the sedimentation support pipe 4 has settled for a period of time, the powder can be discharged through the discharge pipe 6. Although a grate cooler 1 is used instead of a hot air blower, the hot air temperature generated by the grate cooler 1 is relatively high, which is easy to alarm due to high temperature. Therefore, a ventilation pipe 7 is provided on the sedimentation support pipe 4. The ventilation pipe 7 can pass natural wind into the feed pipe 3 for cooling. A windshield 11 can be opened and closed at the ventilation pipe 7. The size of the windshield 11 blocking the ventilation pipe is adjusted according to the temperature measured by the feed pipe 3, thereby changing the ventilation volume. The temperature measuring device can use a thermocouple 21. The thermocouple 21 is installed on the feed pipe 3 or the hot air pipe 2. The temperature measuring end of the thermocouple 21 is inserted into the feed pipe 3 or the hot air pipe 2 to measure the temperature inside the pipe. The thermocouple 21 transmits the temperature signal of the feed pipe 3 to a display device or a supporting instrument through a wire.

[0021] The hot air pipe 2 itself has a certain weight. Secondly, there will be a certain amount of powder in the hot air blown out by the grate cooler 1. Part of the powder will settle from the upper end of the hot air pipe 2, increasing the weight of the hot air pipe 2. Therefore, a support seat 9 and a support frame 8 are provided on the lower side of the hot air pipe 2. The upper side of the support seat 9 corresponds to the outer pipe wall of the hot air pipe 2 and is supported on the lower side of the hot air pipe 2. The support seat 9 is fixedly provided on the support frame 8, and the support frame 8 is supported on a horizontal plane to prevent the hot air pipe from collapsing and breaking.

[0022] A horizontal branch is provided at the lower part of the settlement support pipe 4, and a mounting plate 5 is provided at the opening of the horizontal branch. The mounting plate 5 is provided toward one side of the settlement support pipe 4. The discharge pipe 6 and the ventilation pipe 7 are both provided on the mounting plate 5. The end of the discharge pipe 6 is tilted downward to facilitate discharge. If the discharge pipe 6 is blocked, a new discharge pipe 6 can be provided on the mounting plate 5 to continue discharge.

[0023] like Figure 2 As shown, the ventilation pipe 7 in this embodiment is a circular pipe installed on the settlement support pipe 4, and the windshield 11 is a circular plate adapted to the inner diameter of the ventilation pipe 7. An adjustment groove 10 is provided on the upper side of the pipe wall of the ventilation pipe 7. The windshield 11 passes through the adjustment groove 10 and enters the ventilation pipe 7. A ventilation adjustment component that drives the windshield 11 to swing is provided on the mounting plate 5. The position of the windshield 11 can be adjusted by the ventilation adjustment component. The windshield 11 can be moved out of the ventilation pipe 7 from the adjustment groove 10, thereby changing the area of ​​the ventilation pipe 7 blocked by the windshield 11, changing the ventilation area, and then changing the ventilation volume. The windshield 11 is adjusted according to the temperature measured by the feed pipe 3.

[0024] Specifically, the ventilation adjustment assembly includes a connecting rod 13 and an adjusting rod 14. One end of the connecting rod 13 is fixedly connected to one side of the windshield 11, and one end of the connecting rod 13 is hinged to the outside of the adjustment slot 10. A fixed block 12 is fixedly provided on one side of the adjustment slot 10. One end of the connecting rod 13 is connected to the windshield 11 and is hinged to the fixed block 12 through a pin shaft 15. The other end of the connecting rod 13 is hinged to one end of the adjusting rod 14 through the pin shaft 15. The other end of the adjusting rod 14 is provided with a lifting adjustment assembly. The adjusting rod 14 is pulled downward, and the adjusting rod 14 pulls the other end of the connecting rod 13, so that the connecting rod 13 rotates around the fixed block 12. The other end of the connecting rod 13 rotates downward, so that the windshield 11 at one end of the connecting rod 13 rotates upward, and then the windshield 11 is moved out of the adjustment slot 10 from the ventilation pipe 7, and the natural wind from the outside can enter the feed pipe 3 through the ventilation pipe 7.

[0025] The lifting and adjusting component in this embodiment includes a fixing bolt 17 and a fixing nut 18. A number of adjusting holes 16 are arranged at intervals along the length direction on the adjusting rod 14. The fixing bolt 17 is connected to the settlement support pipe 4. The fixing bolt 17 passes through the adjusting hole 16 and is fixed by the fixing nut 18. Connecting the fixing bolt 17 to different adjusting holes 16 can change the height position of the adjusting rod 14, and thus change the position of the wind deflector 11. In other embodiments, the lifting and adjusting component can also be a cylinder. The cylinder is arranged vertically, and the adjusting rod 14 is connected to the output shaft of the cylinder, and the adjusting rod 14 is lifted and lowered by the cylinder.

[0026] The fixing bolt 17 is connected to the settlement support pipe 4 through a fixing seat 19. The fixing seat 19 is in a "冂" shape. One side of the fixing seat 19 is fixedly connected to the settlement support pipe 4, and the other side of the fixing seat 19 is bent. A through hole is provided at the other end of the fixing seat 19. One end of the fixing bolt 17 passes through the through hole and the adjusting hole 16, and the other end of the fixing bolt 17 is arranged inside the fixing seat 19. The fixing nut 18 is threadedly connected to one end of the fixing bolt 17. When the height of the adjusting rod 14 needs to be adjusted, loosen the fixing nut 18, make the fixing bolt 17 stuck on the fixing seat 19, move the fixing bolt 17 to pull it out of the adjusting hole 16, adjust the position of the adjusting rod 14 up and down, and then push the fixing bolt 17 into the corresponding adjusting hole 16, and then tighten the fixing nut 18 to fix it. A filter screen 20 is provided at the ventilation pipe 7, and the filter screen 20 can filter the natural wind entering the feeding pipe 3.

[0027] When the utility model is in use, the suction negative pressure fan makes the feeding pipe 3 form a negative pressure, and the powder material is sucked from one end of the feeding pipe 3 to the other end. When the powder material is being transported, the hot air of the grate cooler 1 is transported into the feeding pipe 3 through the hot air pipe 2 to assist the transportation of the powder material. A temperature measuring device is provided on the feeding pipe 3. When the temperature measuring device measures that the temperature in the feeding pipe 3 is too high, pull down the adjusting rod 14 to make the wind deflector 11 move out of the ventilation pipe 7 from the adjusting groove 10, and the external natural wind can enter the feeding pipe 3 through the ventilation pipe 7 to reduce the temperature in the feeding pipe 3. The utility model utilizes the existing heat source, does not need to set up a hot air blower again, saves resources, and can control the air intake volume by adjusting the wind deflector 11 to ensure that the hot air introduced will not be overheated.

[0028] In other embodiments, the air intake volume can also be automatically adjusted by driving the wind deflector 11 to swing through a motor.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A powder conveying device, characterized in that: It comprises a feed pipe (3) and a sedimentation support pipe (4), the upper end of the sedimentation support pipe (4) is fixedly connected to the feed pipe (3), the lower end of the sedimentation support pipe (4) is supported on a horizontal plane, a discharge pipe (6) is provided on one side of the sedimentation support pipe (4), the feed pipe (3) is connected to the grate cooler (1) through a hot air pipe (2), a ventilation pipe (7) is provided on the sedimentation support pipe (4), and a windshield (11) is provided at the ventilation pipe (7) so as to be openable and closable; An adjustment slot (10) is provided on the wall of the ventilation pipe (7), and a windshield (11) passes through the adjustment slot (10) and enters the ventilation pipe (7). The windshield (11) is connected to a ventilation adjustment component that drives the windshield (11) to swing.

2. A powder conveying device according to claim 1, characterized in that: A transverse branch pipe is provided on one side of the lower portion of the settlement support pipe (4), a mounting plate (5) is provided at the opening of the transverse branch pipe, the ventilation pipe (7) and the discharge pipe (6) are both provided on the mounting plate (5), and the ventilation adjustment assembly is connected to the mounting plate (5).

3. A powder conveying device according to claim 1 or 2, characterized in that: The ventilation adjustment assembly comprises a connecting rod (13) and an adjustment rod (14), one end of the connecting rod (13) is fixedly connected to the windshield (11), and one end of the connecting rod (13) is hinged to the outside of the adjustment slot (10), the other end of the connecting rod (13) is hinged to one end of the adjustment rod (14), and the other end of the adjustment rod (14) is provided with a lifting adjustment assembly.

4. A powder conveying device according to claim 3, characterized in that: The lifting adjustment assembly includes a fixing bolt (17) and a fixing nut (18). A plurality of adjustment holes (16) are arranged at intervals along the length direction on the adjustment rod (14). The fixing bolt (17) is connected to the settlement support pipe (4). The fixing bolt (17) passes through the adjustment hole (16) and is fixed by the fixing nut (18).

5. A powder conveying device according to claim 4, characterized in that: The fixing bolt (17) is connected to the settlement support tube (4) through the fixing seat (19), one end of the fixing seat (19) is fixedly connected to the settlement support tube (4), the other end of the fixing seat (19) is bent, and a through hole is provided at the other end of the fixing seat (19), one end of the fixing bolt (17) passes through the through hole and the adjustment hole (16), the other end of the fixing bolt (17) is provided on one side of the through hole, and the fixing nut (18) is threadedly connected to one end of the fixing bolt (17).

6. The powder conveying device according to claim 1, characterized in that: A filter screen (20) is provided at the ventilation pipe (7).

7. The powder conveying device according to claim 1, characterized in that: A support seat (9) and a support frame (8) are fixedly arranged on the lower side of the hot air pipe (2); the upper side of the support seat (9) is arranged corresponding to the outer pipe wall of the hot air pipe (2) and supported on the lower side of the hot air pipe (2); the support seat (9) is fixedly arranged on the support frame (8), and the support frame (8) is supported on a horizontal plane.

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