A flow rate regulating mechanism for ash conveying pipelines

Abstract

This utility model discloses a flow rate regulating mechanism for an ash conveying pipeline. It includes a main pipeline and a secondary pipeline. A secondary pipeline is located on one side of the main pipeline, and an regulating disc is located on one side of the secondary pipeline. A rotating mechanism is located on one side of the regulating disc. The rotating mechanism includes a rotating bar, a rotating spring, and a control bar. The rotating bar is rotatably mounted on one side of the regulating disc. By controlling the main rod to drive the secondary rod to rotate, the positions of the extension frame and the docking frame are adjusted. The movement of the extension frame and the docking frame allows the rotating bar to spray gas outwards. Simultaneously, the size of the outlet and the annular channel are controlled while adjusting the angle. This results in a smaller outlet and increased gas pressure at a given gas flow rate, allowing the gas to be sprayed further and towards the inner wall of the main pipeline, effectively blowing away dust from the side wall. The annular channel remains open, allowing air to exit along the center, achieving the effect of conveying gas through the center.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic ash conveying technology. Specifically, it is a flow rate regulating mechanism for ash conveying pipelines. Background Technology

[0002] Coal-fired power generation is my country's main form of power generation. Its main principle is as follows: coal is fed into a boiler, where its chemical energy is converted into heat energy, which is absorbed by water and steam. The steam then performs work in a turbine, converting it into mechanical energy. The turbine drives a generator rotor, which in turn converts the mechanical energy into electrical energy, which is then delivered to the user. In coal-fired power generation technology, the combustion of fuel produces a large amount of dust. Existing technologies use pneumatic ash conveying, where gas carries dust and smoke through pipes to designated equipment. However, in areas with insufficient pneumatic power, branch pipes are typically needed to supply gas to the main pipe. Existing branch pipes cannot regulate the gas flow rate or the gas angle. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a flow rate adjustment mechanism for ash conveying pipelines. By controlling the main rod to drive the auxiliary rod to rotate, the position of the extension frame and the docking frame can be adjusted. The movement of the extension frame and the docking frame can make the rotating bar spray gas outward, and while adjusting the angle, the size of the outlet and the annular channel are controlled and closed.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] The device includes a main pipe and a secondary pipe. A secondary pipe is located on one side of the main pipe, and an adjusting disc is located on one side of the secondary pipe. A rotating mechanism is located on one side of the adjusting disc. The rotating mechanism includes a rotating bar, a rotating spring, and a control bar. The rotating bar is rotatably mounted on one side of the adjusting disc, and a rotating spring is located between the rotating bar and the adjusting disc. A control bar is slidably mounted on one side of the rotating bar, and a control plate is rotatably mounted on one side of the rotating bar. A control groove is formed on one side of the control bar, and the control plate overlaps the surface of the control groove. An air supply pipe is located on one side of the secondary pipe. An inclined groove is formed on the inner wall of the adjusting disc, and the control bar overlaps the surface of the inclined groove.

[0006] The technical solution of this utility model has achieved the following beneficial technical effects:

[0007] By controlling the main rod to drive the auxiliary rod to rotate, the positions of the extension frame and the docking frame can be adjusted. The movement of the extension frame and the docking frame allows the rotating bar to spray gas outward. At the same time as adjusting the angle, the size of the outlet is controlled and the annular channel is closed. With a certain gas delivery volume, the outlet becomes smaller, which increases the gas pressure and allows the gas to be sprayed further. It can be sprayed towards the inner wall of the main pipe to blow away the dust on the side wall of the main pipe. The annular channel is not closed, so air can be discharged along the middle to achieve the effect of delivering gas through the middle. Attached Figure Description

[0008] Figure 1 A schematic diagram of the overall structure of this utility model;

[0009] Figure 2 A cross-sectional view of the adjusting disc of this utility model;

[0010] Figure 3 A schematic diagram of a partial cut of the secondary pipe of this utility model;

[0011] Figure 4 Schematic diagram of the rotating bar of this utility model.

[0012] The reference numerals in the diagram are as follows: 1. Main pipe; 2. Secondary pipe; 3. Adjusting disc; 4. Rotating bar; 5. Rotating spring; 6. Control bar; 7. Control plate; 8. Control groove; 9. Air supply pipe; 10. Inclined groove; 11. Main rod; 12. Cross block; 13. Secondary rod; 14. Spiral groove; 15. Extension frame; 16. Connecting frame; 17. Side pipe; 18. Exhaust ring; 19. Annular channel; 20. Annular ring; 21. Spring No. 1; 22. Spring No. 2; 23. Connecting channel. Detailed Implementation

[0013] This implementation example is attached to the instruction manual. Figure 1 As shown, both the main pipe 1 and the secondary pipe 2 are circular pipes. The main pipe 1 is the ash conveying pipe, and the secondary pipe 2 is for supplying gas to the ash conveying pipe. The principle of pneumatic ash conveying is to use gas to drive the dust to flow and achieve the effect of ash conveying. This solution does not improve the pneumatic ash conveying method. The direction of the gas flow is from top to bottom. An adjusting plate 3 is set at one end of the secondary pipe 2. The main rod 11 and the secondary rod 13 are rotatably set inside the secondary pipe 2 (both have structures to limit their rotation). The main rod 11 and the secondary rod 13 are connected by a cross block 12 (in the prior art, this is a universal hinge). Since the shape of the secondary pipe 2 is a pipe with a bend that is oblique and parallel (forming a reference with the main pipe 1), the main rod 11 and the secondary rod 13 are respectively rotatably set on one of the sections. Since there is a bend, in order to enable manual or machine control from the outside of the main pipe 1, a universal structure is required so that the rotation of the main rod 11 can drive the rotation of the secondary rod 13.

[0014] The rotation of the main rod 11 can be achieved using existing technologies, such as using a servo motor (with a self-locking function). By installing a gear at one end of the main rod 11, it can mesh with the gear at the output end of the servo motor, thus achieving the effect of motor control of the main rod 11. Alternatively, a handle can be installed on one side of the main rod 11 (a cover needs to be installed on one side of the secondary pipe 2, and a structure that increases friction can be set on the cover, such as a valve in daily life, which requires a certain amount of force to open). Through manual control, a mark can be made at a suitable position. Both of these existing technologies can achieve the effect of rotating the main rod 11.

[0015] As per the instruction manual Figure 2-3 As shown, the instruction manual is attached. Figure 3 Includes instruction manual Figure 1 The wavy lines appearing in the image cut the three-dimensional structure below them in half for display. (Instruction manual included.) Figure 2 The diagram shows a cross-sectional view of the regulating plate 3. An air supply pipe 9 is installed inside the secondary pipe 2. An air compressor is installed at one end of the air supply pipe 9. The air compressor supplies gas to the supply pipe. The gas reaches the extension frame 15. One section of the supply pipe is set on the extension frame 15. One side of the extension frame 15 is a docking frame 16 (the cross-section of the middle part of the docking frame 16 is elliptical, which can slide on the regulating plate 3. The regulating plate 3 is provided with corresponding elliptical holes to facilitate the sliding of the docking frame 16, thus preventing relative rotation between the docking frame 16 and the regulating plate 3). The docking frame 16 and the extension frame 15 are docked. A docking channel is opened inside the docking frame 16, so the gas will eventually reach the docking channel. The docking channel will transport the gas in two directions. The first is to transport it into the rotating bar 4, and the second is to transport it into the exhaust ring 18.

[0016] Before the main rod 11 rotates, the air is conveyed in two directions: towards the inside of the rotating bar 4 and the exhaust ring 18. At this time, these two output directions are concentrated in the middle, and the flow rate is relatively low because the exhaust area is large. As the main rod 11 rotates, it can close the annular channel 19 and reduce the air outlet area on one side of the rotating bar 4. The rotation of the main rod 11 can cause the auxiliary rod 13 to rotate together. A spiral groove 14 is opened on one side of the auxiliary rod 13. The spiral groove 14 is a spiral shape, as shown in the attached instruction manual. Figure 3 As shown, the extension frame 15 is slidably positioned on the left side, and the extension slide is a limited slide, meaning it can only slide and cannot rotate. Therefore, as the slide rod rotates, the extension frame 15 will move towards the docking frame 16. There is a ring on the edge of the extension frame 15, and the left side of this ring is connected to a second spring 22. The other end of the second spring 22 is connected to an annular ring 20. A first spring 21 is located between the annular ring 20 and the exhaust valve. (See attached instruction manual.) Figure 2 and 3All springs are in their original length state. The elastic force of spring 22 is much greater than that of spring 21, so it can compress the ring 20 and make the ring 20 face the annular channel 19 (the annular channel 19 has an angle of 360 degrees and the channel has small blocks for reinforcement), thus achieving the effect of closing the annular channel 19.

[0017] Because the extension frame 15 moves a long distance, the longer second spring 22 can close the annular channel 19 first and then compress the second spring 22 to adapt to the movement of the extension frame 15.

[0018] The docking frame 16 is slidably disposed inside the adjusting plate 3. The docking frame 16 and the extension frame 15 cannot be detached. Therefore, if the extension frame 15 moves, the docking frame 16 will also move. The docking frame 16 moves to the left (according to the instruction manual). Figure 3 (From the perspective of the user) the rotating bar 4 can be controlled to rotate outwards because a cylinder is provided on one side of the rotating bar 4, as shown in the instruction manual. Figure 2 As shown, on the left side of the rotating bar 4, and with the top of the docking bracket 16 contacting the cylinder, the upward translation of the docking allows the rotating bar 4 to rotate outward, as shown in the attached instruction manual. Figure 4 As shown, the position of the rotating spring 5 is the rotation center of the rotating bar 4. A corresponding circular block is set at the rotation center of the rotating bar 4 as the axis of rotation. The rotating spring 5 is a rotating spring. This solution is attached to the instruction manual. Figure 2 When the rotating spring 5 is not twisted, as the docking frame 16 moves upward, the rotating bar 4 will rotate, achieving the effect of rotating outward.

[0019] This solution has multiple sets of rotating bars 4. This solution shows three sets, but there can actually be more.

[0020] As per the instruction manual Figure 4 As shown, as the rotating bar 4 rotates outward, the air outlet on one side of the rotating bar 4 becomes smaller (the interior of the rotating bar 4 is hollow to facilitate gas flow). This is because a control plate 7 is mounted on one side of the rotating bar 4. The control plate 7 is semi-circular at the bottom, with one side of the semi-circular edge tightly against the rotating bar 4, thus creating a sealed rotation. The center of rotation of the control plate 7 is also at the center of this semi-circular shape, as shown in the instruction manual. Figure 4 As shown, the rotation center extends outwards and finally upwards, while the control bar 6 is slidably positioned above the rotating bar 4, rotating together with the rotating bar 4. An inclined groove 10 is provided on the inner wall of the adjusting disc 3. As the control bar 6 rotates, it is forced to translate towards the control plate 7 under the control of the inclined bar. This translation of the control bar 6 causes the control plate 7 to rotate at a reduced angle, narrowing the outlet of the exhaust gas. Because there is a control groove 8 on the upper side of the control bar 6, and the surface of the control groove 8 overlaps with the control plate 7, the control plate 7 will rotate counterclockwise (refer to the instruction manual). Figure 2This achieves the effect of reducing the size of the discharge outlet;

[0021] The output gas volume of the air compressor in this solution remains constant during operation. As the annular channel 19 closes and the control plate 7 rotates to change the outlet, the gas will be discharged quickly by increasing the pressure, thereby achieving the effect of regulating the flow rate. Furthermore, as the rotating bar 4 rotates, the gas can be sprayed outwards and onto the inner wall of the main pipe 1 to clean the inside of the main pipe 1.

[0022] The system includes a main pipe 1 and a secondary pipe 2. The secondary pipe 2 is located on one side of the main pipe 1, and an adjusting disc 3 is located on one side of the secondary pipe 2. A rotating mechanism is located on one side of the adjusting disc 3, comprising a rotating bar 4, a rotating spring 5, and a control bar 6. The rotating bar 4 is rotatably mounted on one side of the adjusting disc 3, and a rotating spring is located between the rotating bar 4 and the adjusting disc 3. The control bar 6 is slidably mounted on one side of the rotating bar 4, and a control plate 7 is rotatably mounted on one side of the rotating bar 4. A control groove 8 is formed on one side of the control bar 6, and the control plate 7 overlaps with the surface of the control groove 8. An air supply pipe 9 is located on one side of the secondary pipe 2. An inclined groove 10 is provided on the inner wall of the adjusting disc 3, and the control bar 6 overlaps with the surface of the inclined groove 10. A universal adjustment mechanism is located inside the secondary pipe 2, comprising a main rod 11, a cross block 12, and a secondary rod 13. A spiral groove 14 is formed on one side of the secondary rod 13, and the surface of the spiral groove 14 overlaps with... An extension frame 15 is slidably installed inside the secondary pipe 2. One side of the air supply pipe 9 is connected to the extension frame 15. A docking frame 16 is rotatably installed on one side of the extension frame 15. The docking frame 16 is slidably installed inside the adjusting plate 3. A docking channel 23 is opened inside the docking frame 16. A rotating bar 4 is connected to one side of the docking channel 23. A side pipe 17 is connected to one side of the docking channel 23. An exhaust ring 18 is connected to the side pipe 17. The exhaust ring 18 is fixedly installed on one side of the adjusting plate 3. An annular channel 19 is opened on one side of the adjusting plate 3. An annular ring 20 is slidably installed on one side of the exhaust ring 18. A first spring 21 is installed between the annular ring 20 and the adjusting plate 3. A second spring 22 is installed on one side of the extension frame 15. A cross block 12 is connected to one side of the main rod 11. A secondary rod 13 is connected to one side of the cross block 12. The secondary rod 13 is rotatably installed inside the secondary pipe 2.

[0023] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A flow rate adjustment mechanism for a cement delivery conduit, comprising: The system includes a main pipe (1) and a secondary pipe (2). The secondary pipe (2) is provided on one side of the main pipe (1). An adjusting plate (3) is provided on one side of the secondary pipe (2). A rotating mechanism is provided on one side of the adjusting plate (3). The rotating mechanism includes a rotating bar (4), a rotating spring (5), and a control bar (6). The rotating bar (4) is rotatably disposed on one side of the adjusting plate (3). A rotating spring is provided between the rotating bar (4) and the adjusting plate (3). A control bar (6) is slidably disposed on one side of the rotating bar (4). A control piece (7) is rotatably disposed on one side of the rotating bar (4). A control groove (8) is opened on one side of the control bar (6). The control piece (7) overlaps on the surface of the control groove (8). An air supply pipe (9) is provided on one side of the secondary pipe (2). An inclined groove (10) is provided on the inner wall of the adjusting plate (3). The control bar (6) overlaps on the surface of the inclined groove (10).

2. A flow rate adjustment mechanism for a fly ash duct according to claim 1, wherein The secondary pipe (2) is equipped with a universal adjustment mechanism, which includes a main rod (11), a cross block (12), and a secondary rod (13).

3. A flow rate adjustment mechanism for a fly ash duct according to claim 2, wherein A spiral groove (14) is provided on one side of the auxiliary rod (13), and an extension frame (15) is attached to the surface of the spiral groove (14). The extension frame (15) is slidably disposed inside the auxiliary pipe (2). The extension frame (15) is connected to one side of the air supply pipe (9), and a docking frame (16) is rotatably disposed on one side of the extension frame (15).

4. A flow rate adjustment mechanism for a fly ash duct according to claim 3, wherein The docking frame (16) is slidably disposed inside the adjusting plate (3), and a docking channel (23) is provided inside the docking frame (16). A rotating bar (4) is connected to one side of the docking channel (23).

5. A flow rate adjustment mechanism for a fly ash duct according to claim 4, wherein A side pipe (17) is connected to one side of the docking channel (23), and an exhaust ring (18) is connected to the side pipe (17). The exhaust ring (18) is fixedly installed on one side of the adjusting plate (3).

6. The flow rate regulating mechanism for an ash conveying pipeline according to claim 5, characterized in that, An annular channel (19) is provided on one side of the regulating disc (3), and an annular ring (20) is slidably provided on one side of the exhaust ring (18).

7. A flow rate adjustment mechanism for a fly ash duct according to claim 6, wherein A first spring (21) is provided between the annular ring (20) and the adjusting plate (3).

8. A flow rate adjustment mechanism for a fly ash duct according to claim 3, wherein A second spring (22) is installed on one side of the extension frame (15).

9. A flow rate adjustment mechanism for a fly ash duct according to claim 2, wherein A cross block (12) is attached to one side of the main rod (11), and a secondary rod (13) is attached to one side of the cross block (12).

10. A flow rate adjustment mechanism for a fly ash duct according to claim 2, wherein The auxiliary rod (13) is rotatably mounted inside the auxiliary pipe (2).

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