Gas supplementing pipe connecting structure of coal ash pneumatic conveying line

Abstract

The utility model discloses a fly ash pneumatic conveying line blowdown pipe connecting structure, which relates to the technical field of blowdown pipe connection, and comprises a first pneumatic conveying pipe and a second pneumatic conveying pipe, and a mounting sleeve is arranged between the first pneumatic conveying pipe and the second pneumatic conveying pipe. Symmetrical first connecting sleeves are arranged on the two sides of the mounting sleeve, limiting mechanisms are arranged in the first connecting sleeves, a control mechanism is arranged at the position, located on one side of each limiting mechanism, in each first connecting sleeve, and the first pneumatic conveying pipe and the second pneumatic conveying pipe can be rapidly mounted through the limiting mechanisms; and the first pneumatic conveying pipe and the second pneumatic conveying pipe can be quickly disassembled through the control mechanism, so that disassembly and replacement are convenient according to needs, and application is more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply pipe connection, in particular to an air supply pipe connection structure for a fly ash pneumatic conveying line. Background Art

[0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged by coal-fired power plants. With the development of the electric power industry, the fly ash emissions from coal-fired power plants have increased year by year, becoming one of the largest industrial waste residues currently discharged in my country. If a large amount of fly ash is not treated, it will produce dust and pollute the atmosphere. If it is discharged into the water, it will cause river siltation, and the toxic chemicals in it will also cause harm to humans and organisms. At present, the main use of fly ash is to use it as a raw material for cement production, thereby solving the solid waste emission problem of fly ash.

[0003] During the pneumatic conveying process of powder and granular materials, due to various reasons, pipeline blockage failures often occur. The frequency of pipeline blockage is high, and the treatment is often time-consuming. In addition, the connection method of the pneumatic conveying pipe is relatively complicated, which affects the efficiency during maintenance or overhaul.

[0004] Based on this, a fly ash pneumatic conveying line air supply pipe connection structure is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0005] The purpose of the utility model is to provide a fly ash pneumatic conveying line air supply pipe connection structure to solve the problems in the background technology that conveying pipeline blockage failures occur frequently, the frequency of conveying pipeline blockage is high, the treatment is often time-consuming, and the connection method of the pneumatic conveying pipe is relatively complicated, which affects the efficiency during maintenance or repair.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A fly ash pneumatic conveying line air supply pipe connection structure includes a first pneumatic conveying pipe and a second pneumatic conveying pipe, the second pneumatic conveying pipe is provided with a feeding mechanism, the second pneumatic conveying pipe is provided with a pressurizing mechanism on one side of the feeding mechanism, an installation sleeve is provided between the first pneumatic conveying pipe and the second pneumatic conveying pipe, symmetrical first connecting sleeves are provided on both sides of the installation sleeve, a limiting mechanism is provided in the first connecting sleeve, and a control mechanism is provided in the first connecting sleeve on one side of the limiting mechanism.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an alternative solution: a second connecting sleeve is provided on one side of the first connecting sleeve close to the mounting sleeve, and a limiting block is provided on one side of the second connecting sleeve close to the mounting sleeve.

[0010] In an alternative solution: the limiting mechanism includes a fixed sleeve, the fixed sleeve is fixedly connected inside the first connecting sleeve, and the fixed sleeve is on one side of the second connecting sleeve. A V-shaped plate is provided on one side of the fixed sleeve close to the second connecting sleeve. The V-shaped plate is rotatably connected to the fixed sleeve through a hinge, and a plurality of first springs are provided between the upper end of the V-shaped plate and the fixed sleeve.

[0011] In an alternative solution: the control mechanism includes a sliding sleeve, the sliding sleeve is slidably connected inside the fixed sleeve in the first connecting sleeve. A limiting sleeve is provided on one side of the sliding sleeve away from the fixed sleeve. A plurality of second springs are provided between the limiting sleeve and the fixed sleeve, and a convex block is provided at the outer end of the limiting sleeve.

[0012] In an alternative solution: limiting grooves are provided at positions corresponding to the V-shaped plate on both the first pneumatic conveying pipe and the second pneumatic conveying pipe.

[0013] In an alternative solution: the distance from the limiting block to the V-shaped plate is equal to the distance from the first pneumatic conveying pipe to the limiting groove.

[0014] In an alternative solution: the feeding mechanism includes a hopper, the hopper is located above the second pneumatic conveying pipe. A first connecting pipe is provided at the bottom end of the hopper, a first solenoid valve is provided inside the first connecting pipe, and the bottom end of the first connecting pipe is connected to the second pneumatic conveying pipe through a transmitter.

[0015] In an alternative solution: the pressurizing mechanism includes a high-pressure gas source, the high-pressure gas source is connected to the second pneumatic conveying pipe through a second connecting pipe, a second solenoid valve is provided inside the second connecting pipe, and a ash bin is provided at the tail end of the first pneumatic conveying pipe.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. By providing a mounting sleeve between the first pneumatic conveying pipe body and the second pneumatic conveying pipe in the present utility model, symmetric first connecting sleeves are provided on both sides of the mounting sleeve, a limiting mechanism is provided inside the first connecting sleeve, and a control mechanism is provided on one side of the limiting mechanism inside the first connecting sleeve. The first pneumatic conveying pipe and the second pneumatic conveying pipe can be quickly installed through the limiting mechanism, and the first pneumatic conveying pipe and the second pneumatic conveying pipe can be quickly disassembled through the control mechanism, so as to be conveniently disassembled and replaced according to needs, and the application is more flexible.

[0018] 2. In the present utility model, a high-pressure air source is provided above the second pneumatic conveying pipe. The high-pressure air source is connected to the second pneumatic conveying pipe through a second connecting pipe, and a second solenoid valve is arranged in the second connecting pipe. A ash silo is arranged at the end of the first pneumatic conveying pipe. By jetting air from the high-pressure air source, the phenomenon of pipeline blockage can be prevented. Under the action of the pneumatic force, fly ash enters the ash silo through the pneumatic conveying pipe, improving the conveying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 is a schematic diagram of the internal structure of the mounting sleeve of the present utility model.

[0021] Figure 3 is a schematic diagram of the internal structure of one side of the first connecting sleeve of the present utility model.

[0022] Figure 4 is a schematic diagram of the internal structure of the other side of the first connecting sleeve of the present utility model.

[0023] NOTES ON REFERENCE NUMERALS: 1. First pneumatic conveying pipe; 2. Second pneumatic conveying pipe; 3. Mounting sleeve; 4. First connecting sleeve; 5. Second connecting sleeve; 6. Limiting block; 7. Fixed sleeve; 8. V-shaped plate; 9. Hinge; 10. First spring; 11. Sliding sleeve; 12. Limiting sleeve; 13. Second spring; 14. Protrusion; 15. Limiting groove; 16. Transmitter; 17. First connecting pipe; 18. First solenoid valve; 19. Ash hopper; 20. Second connecting pipe; 21. Second solenoid valve; 22. High-pressure air source; 23. Ash silo. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, as Figures 1 - 4As shown in the figure, a connecting structure for a supplementary air pipe of a fly ash pneumatic conveying line includes a first pneumatic conveying pipe 1 and a second pneumatic conveying pipe 2. An inlet mechanism is provided on the second pneumatic conveying pipe 2, and a pressurizing mechanism is provided on the second pneumatic conveying pipe 2 on one side of the inlet mechanism. An installation sleeve 3 is provided between the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2. Symmetrical first connecting sleeves 4 are provided on both sides of the installation sleeve 3. A limiting mechanism is provided inside the first connecting sleeve 4, and a control mechanism is provided on one side of the limiting mechanism inside the first connecting sleeve 4. Fly ash is added through a hopper 19. The first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 are inserted into the first connecting sleeve 4. The limiting mechanism can quickly install and fix the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2. The control mechanism inside the first connecting sleeve 4 can quickly disassemble the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2. The pressurizing mechanism can jet air into the conveying pipeline 5, which can prevent the phenomenon of pipeline blockage and improve the conveying efficiency.

[0026] In one embodiment, as Figure 3 shown, a second connecting sleeve 5 is provided inside the first connecting sleeve 4 near the installation sleeve 3. A limiting block 6 is provided inside the second connecting sleeve 5 near the installation sleeve 3. When the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 are installed, the ends of the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 are in contact with the limiting block 6, that is, the installation is in place.

[0027] In one embodiment, as Figure 4 shown, the limiting mechanism includes a fixed sleeve 7. The fixed sleeve 7 is fixedly connected inside the first connecting sleeve 4 and is located on one side of the second connecting sleeve 5. A V-shaped plate 8 is provided on the fixed sleeve 7 near the second connecting sleeve 5. The V-shaped plate 8 is rotatably connected to the fixed sleeve 7 through a hinge 9. A plurality of first springs 10 are provided between the upper end of the V-shaped plate 8 and the fixed sleeve 7. The first springs 10 have a reset function. When the first pneumatic conveying pipe 1 and the pneumatic conveying pipe 2 are installed, when the bottom end of the V-shaped plate 8 is squeezed, the top end of the V-shaped plate 8 will compress the first springs 10 and rotate. When the bottom end of the V-shaped plate 8 is not under pressure, the top end of the V-shaped plate 8 will reset under the action of the first springs 10.

[0028] In one embodiment, as Figure 4 shown, the control mechanism includes a sliding sleeve 11. The sliding sleeve 11 is slidably connected inside the fixed sleeve 7 in the first connecting sleeve 4. A limiting sleeve 12 is provided on the sliding sleeve 11 away from the fixed sleeve 7. A plurality of second springs 13 are provided between the limiting sleeve 12 and the fixed sleeve 7. A convex block 14 is provided at the outer end of the limiting sleeve 12. Slide the sliding sleeve 11 inward, so that the limiting sleeve 12 squeezes the second springs 13, thereby making the end of the sliding sleeve 11 squeeze the V-shaped plate 8 and rotate the V-shaped plate by a certain angle.

[0029] In one embodiment, as Figure 2As shown, limiting grooves 15 are provided at positions corresponding to the V-shaped plate 8 on the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2. The limiting grooves 15 and the V-shaped plate 8 can cooperate with each other for limiting.

[0030] In one embodiment, as Figure 2 shown, the distance from the limiting block 6 to the V-shaped plate 8 is equal to the distance from the first pneumatic conveying pipe 1 to the limiting groove 15. When the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 are installed in place, at this time, the bottom end of the V-shaped plate 8 is in the limiting groove 15 to resist and limit.

[0031] In one embodiment, as Figure 1 shown, the feeding mechanism includes a hopper 19. The hopper 19 is located above the second pneumatic conveying pipe 2. A first connecting pipe 17 is provided at the bottom end of the hopper 19. A first solenoid valve 18 is provided in the first connecting pipe 17. The bottom end of the first connecting pipe 17 is connected to the second pneumatic conveying pipe 2 through a transmitter 16. Fly ash is added through the hopper 19.

[0032] In one embodiment, as Figure 1 shown, the pressurizing mechanism includes a high-pressure gas source 22. The high-pressure gas source 22 is connected to the second pneumatic conveying pipe 2 through a second connecting pipe 20. A second solenoid valve 21 is provided in the second connecting pipe 20. A ash silo 23 is provided at the tail end of the first pneumatic conveying pipe 1. By jetting air through the high-pressure gas source 22, the phenomenon of pipeline blockage can be prevented. Under the action of air pressure, fly ash enters the ash silo 23 through the pneumatic conveying pipe, improving the conveying efficiency.

[0033] The above embodiment discloses a connection structure of a supplementary air pipe for a fly ash pneumatic conveying line. When in use, the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 are inserted into the first connecting sleeve 4. The first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 squeeze the bottom end of the V-shaped plate 8. When the bottom end of the V-shaped plate 8 is squeezed, the top end of the V-shaped plate 8 will compress the first spring 10 and rotate until the ends of the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 contact the limiting block 6, that is, the installation is in place. At this time, the bottom end of the V-shaped plate 8 is in the limiting groove 15 to resist and limit, which is convenient for disassembly and replacement and has more flexible application. When disassembly is required, slide the sliding sleeve inward 11 so that the limiting sleeve 12 squeezes the second spring 13, thereby making the end of the sliding sleeve 11 squeeze the V-shaped plate 8 to rotate the V-shaped plate by a certain angle, and the bottom end of the V-shaped plate 8 disengages from the limiting grooves 15 on the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2, and the first pneumatic conveying pipe 1 and the second pneumatic conveying pipe 2 can be pulled out. When the bottom end of the V-shaped plate 8 is not under pressure, the top end of the V-shaped plate 8 is reset under the action of the first spring 10. Fly ash is added through the hopper 19. By jetting air through the high-pressure gas source 22, the phenomenon of pipeline blockage can be prevented. Under the action of air pressure, fly ash enters the ash silo 23 through the pneumatic conveying pipe, improving the conveying efficiency.

[0034] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A connecting structure for a supplementary air pipe of a fly ash pneumatic conveying line, comprising a first pneumatic conveying pipe (1) and a second pneumatic conveying pipe (2), characterized in that, An inlet mechanism is provided on the second pneumatic conveying pipe (2). A pressurizing mechanism is provided on the second pneumatic conveying pipe (2) on one side of the inlet mechanism. An installation sleeve (3) is provided between the first pneumatic conveying pipe (1) and the second pneumatic conveying pipe (2). Symmetrical first connecting sleeves (4) are provided on both sides of the installation sleeve (3). A limiting mechanism is provided inside the first connecting sleeve (4). A control mechanism is provided on one side of the limiting mechanism inside the first connecting sleeve (4).

2. The air supply pipe connection structure for the fly ash pneumatic conveying line according to claim 1, characterized in that, A second connecting sleeve (5) is provided inside the first connecting sleeve (4) near one side of the installation sleeve (3). A limiting block (6) is provided inside the second connecting sleeve (5) near one side of the installation sleeve (3).

3. The air supply pipe connection structure for the fly ash pneumatic conveying line according to claim 2, characterized in that The limiting mechanism includes a fixed sleeve (7). The fixed sleeve (7) is fixedly connected to the inner side of the first connecting sleeve (4), and the fixed sleeve (7) is on one side of the second connecting sleeve (5). A V-shaped plate (8) is provided on the fixed sleeve (7) near one side of the second connecting sleeve (5). The V-shaped plate (8) is rotatably connected to the fixed sleeve (7) through a hinge (9). A plurality of first springs (10) are provided between the upper end of the V-shaped plate (8) and the fixed sleeve (7).

4. The air supply pipe connection structure for the fly ash pneumatic conveying line according to claim 1, characterized in that, The control mechanism includes a sliding sleeve (11). The sliding sleeve (11) is slidably connected to the inner side of the fixed sleeve (7) inside the first connecting sleeve (4). A limiting sleeve (12) is provided on the sliding sleeve (11) far from one side of the fixed sleeve (7). A plurality of second springs (13) are provided between the limiting sleeve (12) and the fixed sleeve (7). A convex block (14) is provided at the outer end of the limiting sleeve (12).

5. The air supply pipe connection structure for the fly ash pneumatic conveying line according to claim 3, characterized in that Limiting grooves (15) are provided at corresponding positions on the first pneumatic conveying pipe (1) and the second pneumatic conveying pipe (2) opposite to the V-shaped plate (8).

6. The air supply pipe connection structure for the fly ash pneumatic conveying line according to claim 3, characterized in that, The distance from the limiting block (6) to the V-shaped plate (8) is equal to the distance from the first pneumatic conveying pipe (1) to the limiting groove (15).

7. The air supply pipe connection structure for the fly ash pneumatic conveying line according to claim 1, wherein The inlet mechanism includes a hopper (19). The hopper (19) is located above the second pneumatic conveying pipe (2). A first connecting pipe (17) is provided at the bottom end of the hopper (19). A first solenoid valve (18) is provided inside the first connecting pipe (17). The bottom end of the first connecting pipe (17) is connected to the second pneumatic conveying pipe (2) through a transmitter (16).

8. The air supply pipe connection structure for the pneumatic conveying line of fly ash according to claim 1, wherein, The pressurizing mechanism includes a high-pressure gas source (22). The high-pressure gas source (22) is connected to the second pneumatic conveying pipe (2) through a second connecting pipe (20). A second solenoid valve (21) is provided inside the second connecting pipe (20). A ash silo (23) is provided at the tail end of the first pneumatic conveying pipe (1).

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