A soot blowing device for a soot conveying duct

Abstract

The utility model discloses a blow ash device for ash conveying pipeline. Including the inside of including pipe body is provided with the extension mechanism, the extension mechanism includes the inside ring, the adjusting groove and the extension rod, the inside ring rotates and is arranged in the inside of pipe body, the inside of inside ring is provided with the adjusting groove, the adjusting groove includes the adjusting section and the stable section, the upper surface of pipe body is provided with the rotating block. Through the extension rod extension can control the development strip to carry out the development angle, reach the effect of control blow ash angle, along with the continuous development of the development strip can make the contact strip contact to the inner side wall of ash conveying pipeline, simultaneously make the contact strip can spout gas, and the contact strip can rotate and scrape the inner side wall of ash conveying pipeline, spout gas in the process of scraping can conveniently dust from ash conveying pipeline inside separates.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic ash conveying technology. Specifically, it is a soot blowing device for ash conveying pipelines. Background Technology

[0002] In coal-fired power generation technology, a large amount of dust is generated when the fuel is burned. Existing pneumatic ash conveying technology uses gas to carry dust and smoke through the pipe, so that the dust and smoke are carried to the designated equipment. Under the condition of uncertain pneumatic conveying angle, the dust and smoke are transported to the designated pipeline and tend to adhere and deposit on the ash conveying pipeline, requiring regular cleaning. Existing soot blowing devices cannot clean the side walls of the ash conveying pipeline, and the soot blowing angle is fixed. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a soot blowing device for ash conveying pipes. The device can extend by means of an extension rod to control the unfolding angle of the unfolding bar, thereby achieving the effect of controlling the soot blowing angle. The contact bar can rotate to scrape the inner wall of the ash conveying pipe. During the scraping process, gas is sprayed out to facilitate the removal of dust from the inside of the ash conveying pipe.

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

[0005] The device includes a tube body, and an extension mechanism is provided inside the tube body. The extension mechanism includes an inner ring, an adjustment groove, and an extension rod. The inner ring is rotatably disposed inside the tube body. An adjustment groove is formed on the inner side of the inner ring. The adjustment groove includes an adjustment section and a stable section. A rotating block is rotatably disposed on the upper surface of the tube body. An unfolding strip is rotatably disposed on the upper surface of the rotating block. A limit strip is integrally disposed on the inner side wall of the tube body. A lifting block is slidably disposed on the surface of the limit strip. The adjustment groove is connected to one side of the lifting block, and the extension rod is connected to the other side of the lifting block. The extension rod is slidably disposed on the upper surface of the rotating block.

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

[0007] The extension rod allows control of the unfolding angle of the spreading bar, thus controlling the soot blowing angle. As the spreading bar continues to unfold, the contact bar contacts the inner wall of the ash conveying pipe, simultaneously releasing gas. The contact bar also rotates to scrape the inner wall of the ash conveying pipe. During the scraping process, the released gas facilitates the removal of dust from the inside of the ash conveying pipe. The stable section allows the spreading bar to remain in place for a period of time during the unfolding process, ensuring the scraping work is completed. Furthermore, the rotating block rotates during the scraping process, achieving both air output and scraping effects. Attached Figure Description

[0008] Figure 1 Schematic diagram of the tube structure of this utility model;

[0009] Figure 2 A schematic diagram of the unfolding strip of this utility model;

[0010] Figure 3 A schematic diagram of the middle section of the tube body of this utility model;

[0011] Figure 4 This utility model Figure 3 Partial schematic diagram;

[0012] Figure 5 A schematic diagram of a partial cut of the tube body of this utility model;

[0013] Figure 6 This utility model presents a schematic diagram of the cutting of the connecting channel.

[0014] The reference numerals in the diagram are as follows: 1. Pipe body; 2. Inner ring; 3. Adjustment groove; 4. Extension rod; 5. Adjustment section; 6. Stable section; 7. Rotating block; 8. Unfolding bar; 9. Limiting bar; 10. Lifting block; 11. Connecting rod; 12. Contact bar; 13. Spring No. 1; 14. Horizontal channel; 15. Vertical channel; 16. Supply pipe; 17. Hidden channel; 18. Connecting channel; 19. Drive rod; 20. Ash conveying pipe. Detailed Implementation

[0015] This implementation example is attached to the instruction manual. Figure 1-2 As shown, the instruction manual is attached. Figure 1 For the unfurled section 8, please refer to the instruction manual. Figure 2 When the unfolding strip 8 unfolds, a pipe body 1 is inserted into one side of the ash conveying pipe. The pipe body 1 is welded to the ash conveying pipe and extends towards the center of the ash conveying pipe. The ash conveying direction in this scheme is from bottom to top. A rotating block 7 is rotatably installed on the upper surface of the pipe body 1, and the unfolding strip 8 is rotatably installed on the upper side of the rotating block 7. An extension rod 4 slides vertically in the middle of the rotating block 7. A connecting rod 11 overlaps one side of the extension rod 4, and the other end of the connecting rod 11 overlaps the unfolding strip 8. Therefore, when the extension rod 4 slides on the surface of the rotating block 7, the unfolding strip 8 can rotate towards the side wall of the ash conveying pipe, as shown in the attached instruction manual. Figure 2 As shown, the instruction manual is attached. Figure 1 See instruction manual Figure 2 This refers to the effect of the extension rod 4 moving upwards. A contact bar 12 is rotatably mounted on the top of the unfolding bar 8, and a spring 13 is located at the center of rotation of the contact bar 12. (See the instruction manual for details.) Figure 6 The display shows that spring 13 is a torsion spring, which ensures that the contact bar 12 is not subjected to external force, as shown in the instruction manual. Figure 1As shown, keeping it vertical, as the unfolding bar 8 rotates, the contact bar 12 extends upwards, so the upper part of the contact bar 12 can contact the inner wall of the ash conveying pipe. Furthermore, as the unfolding bar 8 continues, it will contact the limiting box of the ash conveying pipe (as shown in the instruction manual). Figure 2 As shown, this allows the contact strip 12 to directly contact the side wall of the ash conveying pipe.

[0016] As per the instruction manual Figure 3-4 As shown, since the contact strip 12, unfolding strip 8, and connecting rod 11 in this design are all relatively long, the instruction manual is attached. Figure 3 If displayed in its entirety, the details of this solution would be unclear; therefore, a truncated version is used, as shown in the instruction manual. Figure 3 Two double wavy lines appear in the text. These two double wavy lines represent that the longer section of contact strip 12, unfolding strip 8, and connecting rod 11 has been cut off. In fact, the structure has not been affected. The only ambiguity is with connecting rod 11, which is explained in the instruction manual. Figure 3 The two sections of the connecting rod 11 are not aligned because the connecting rod 11 is an inclined rod. With the cutting of the wavy line, the inclined rod will inevitably be misaligned. Therefore, the instruction manual includes... Figure 3 A misalignment is formed in the middle, the extension rod 4 is slidably set on the rotating block 7, and cannot rotate on the rotating tube because the cross section of the extension rod 4 is rectangular and the hole that the rotating tube adapts to is also rectangular, so it cannot rotate. The extension rod 4 extends downward into the inside of the tube body 1 and is controlled by the mechanism inside the tube body 1.

[0017] An inner ring 2 is rotatably installed inside the tube body 1. An adjustment groove 3 is formed on the inner side of the inner ring 2. The adjustment groove 3 is divided into two sections: a stable section 6, which is a normal annular groove with no vertical drop, as shown in the instruction manual. Figure 3 As shown, the two sides of the smooth section 6 are connected to the adjustment section 5. The adjustment section 5 is V-shaped and has a vertical drop. (See the instruction manual attached.) Figure 3 The inner ring 2 is cut in half. A mirror image along this surface reveals the complete inner ring 2, thus revealing the adjustment groove 3. It has a stable section 6 with no vertical drop and an adjustment section 5 with a vertical drop. These two sections are connected to form a complete adjustment groove 3. A limit strip 9 is integrally installed inside the tube body 1. A lifting block 10 is slidably mounted on the surface of the limit strip 9. The lifting block 10 is vertically slidable on the limit strip 9. As the inner ring 2 rotates, one end of the lifting block 10, which overlaps with the limit strip 9, must move upwards. (See attached instruction manual) Figure 3 The lowest point is where the middle adjustment section 5 and the lifting block 10 overlap. Therefore, the lifting block 10 will move upward and eventually reach the stable section 6. The position of the lifting block 10 in the stable section 6 will not change. As the inner ring 2 continues to rotate, the lifting block 10 will eventually retract, so that the lifting block 10 reaches the initial position.

[0018] One end of the lifting block 10 is attached to the extension rod 4. The bottom of the extension rod 4 is a ring. The lifting block 10 is attached to the ring on the left side, so it does not affect the rotation of the ring. However, its up-and-down movement will affect the position of the extension rod 4. Therefore, even if the extension rod 4 can rotate, it will not affect the control of the lifting block 10. As it rotates to the stable section 6, the unfolding bar 8 unfolds, and at the same time, the contact bar 12 is as shown in the instruction manual. Figure 2 As shown, at this time, the side wall of the ash conveying channel can be scraped.

[0019] As per the instruction manual Figure 4 As shown, in Figure 3 The diagram illustrates how this design connects the gas. A supply pipe 16 is installed inside the inner tube. The supply pipe 16 requires external equipment, such as an air compressor. The supply pipe 16 is fixedly installed inside the tube body 1 and has a supporting structure, which is not shown in this design. Above the supply pipe 16 is an annular cavity with an opening. This opening connects to the hidden channel 17, and a sealing ring is installed between them to ensure a seal while preventing interference with rotation. The hidden channel 17 extends upwards to the rotating edge of the unfolding strip 8, as shown in the attached instruction manual. Figure 6 As shown, rotational docking is also performed, and a sealing ring is provided. In this way, the gas will reach the connecting channel 18. Before the contact strip 12 is attached to the ash conveying pipe, the top of the connecting channel 18 and the vertical channel 15 are connected, and the gas is sprayed out along the direction of the unfolding strip 8. As the contact strip 12 is attached to the ash conveying pipe, the contact strip 12 will rotate on the unfolding strip 8 (both are also sealed rotations), which will cause the top of the connecting channel 18 to dock with one side of the horizontal channel 14. The rotation of the horizontal channel 14 sprays gas to both sides. The air inlet side passes through the vertical channel 15, and the angle is deviated from the connecting channel 18. Only after the contact strip 12 rotates will the horizontal channel 14 and the connecting channel 18 dock, so that the contact strip 12 can spray gas to both sides while scraping the ash, making it easier to scrape off the dust.

[0020] A drive rod 19 is rotatably mounted inside the inner ring 2. The upper end of the drive rod 19 engages with a rotating block 7, which extends inwards into the tube body 1 and has a gear. This gear meshes with the gear on the upper side of the drive rod 19. The drive rod 19 has gears on both its upper and lower sides, but the gears are of different sizes. The gear on the lower side of the drive rod 19 meshes with the inner ring 2 as shown in the attached instruction manual. Figure 5 As shown, this allows drive rod 19 to drive both sets of equipment to operate together. A dual-axis motor is located in the middle of drive rod 19. Since the dual-axis motor is an existing structure, it is not specifically installed; details are provided in the instruction manual. Figure 5The image only shows the approximate location of the dual-axis motor. Due to the larger upper gear and smaller lower gear of the drive rod 19, the gear transmission ratio design makes the inner ring 2 rotate more slowly, which means that the stable section 6 is maintained for a longer time. At this time, the inside of the ash conveying pipe can be cleaned. At the same time, the position of the unfolding bar 8 can be adjusted during operation, so that the unfolding bar 8 rotates continuously to spray air, thereby achieving the effect of adjusting the ash blowing angle.

[0021] The device includes a tube body 1, and an extension mechanism is provided inside the tube body 1. The extension mechanism includes an inner ring 2, an adjusting groove 3, and an extension rod 4. The inner ring 2 is rotatably disposed inside the tube body 1. The adjusting groove 3 is opened on the inner side of the inner ring 2. The adjusting groove 3 includes an adjusting section 5 and a stabilizing section 6. A rotating block 7 is rotatably disposed on the upper surface of the tube body 1. An unfolding bar 8 is rotatably disposed on the upper surface of the rotating block 7. A limit strip 9 is integrally disposed on the inner side wall of the tube body 1. A lifting block 10 is slidably disposed on the surface of the limit strip 9. The adjusting groove 3 is connected to one side of the lifting block 10, and the extension rod 4 is connected to the other side of the lifting block 10. The extension rod 4 is slidably disposed on the upper surface of the rotating block 7. A connecting rod 11 is rotatably disposed on the upper surface of the extension rod 4. An unfolding bar is rotatably disposed at one end of the connecting rod 11. 8. A contact bar 12 is provided on one side of the unfolding bar 8. A first spring 13 is provided on one side of the contact bar 12. A horizontal channel 14 is provided on one side of the contact bar 12. A vertical channel 15 is provided in the middle of the contact bar 12. A supply pipe 16 is provided inside the pipe body 1. A hidden channel 17 is provided inside the rotating block 7. A connecting channel 18 is provided in the air outlet section of the hidden channel 17. The connecting channel 18 is opened inside the unfolding bar 8. A drive rod 19 is provided inside the pipe body 1. The top of the drive rod 19 is engaged with the rotating block 7. The bottom of the drive rod 19 is engaged with the inner ring 2. There are multiple unfolding bars 8. A ash conveying pipe 20 is provided on the outside of the pipe body 1. A motor is provided inside the pipe body 1. The output end of the motor is equipped with the drive rod 19.

[0022] 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 soot blowing device for an ash conveying pipeline, characterized in that, The tube includes a tube body (1), and an extension mechanism is provided inside the tube body (1). The extension mechanism includes an inner ring (2), an adjustment groove (3), and an extension rod (4). The inner ring (2) is rotatably disposed inside the tube body (1). An adjustment groove (3) is provided on the inner side of the inner ring (2). The adjustment groove (3) includes an adjustment section (5) and a stable section (6). A rotating block (7) is rotatably disposed on the upper surface of the tube body (1). An unfolding strip (8) is rotatably disposed on the upper surface of the rotating block (7). A limiting strip (9) is integrally disposed on the inner side wall of the tube body (1). A lifting block (10) is slidably disposed on the surface of the limiting strip (9). The adjustment groove (3) overlaps on one side of the lifting block (10). The extension rod (4) overlaps on the other side of the lifting block (10). The extension rod (4) is slidably disposed on the upper surface of the rotating block (7).

2. The soot blowing device for an ash conveying pipeline according to claim 1, characterized in that, A connecting rod (11) is rotatably provided on the upper surface of the extension rod (4), and an unfolding strip (8) is rotatably provided on one end of the connecting rod (11).

3. The soot blowing device for an ash conveying pipeline according to claim 1, characterized in that, A contact bar (12) is provided on one side of the unfolding bar (8), and a first spring (13) is provided on one side of the contact bar (12).

4. A soot blowing device for an ash conveying pipeline according to claim 3, characterized in that, A horizontal channel (14) is provided on one side of the contact strip (12), and a vertical channel (15) is provided in the middle of the contact strip (12).

5. A soot blowing device for an ash conveying pipeline according to claim 1, characterized in that, The tube body (1) is provided with a supply pipe (16) inside, and the rotating block (7) is provided with a hidden channel (17) inside.

6. A soot blowing device for an ash conveying pipeline according to claim 5, characterized in that, The air outlet section of the hidden channel (17) is rotatably provided with a connecting channel (18), which is opened inside the unfolding strip (8).

7. A soot blowing device for an ash conveying pipeline according to claim 1, characterized in that, The tube (1) is provided with a drive rod (19) inside. The top of the drive rod (19) is engaged with a rotating block (7), and the bottom of the drive rod (19) is engaged with an inner ring (2).

8. A soot blowing device for an ash conveying pipeline according to claim 1, characterized in that, The number of the unfolded strips (8) is multiple.

9. A soot blowing device for an ash conveying pipeline according to claim 1, characterized in that, An ash conveying pipe (20) is provided on the outside of the pipe body (1).

10. A soot blowing device for an ash conveying pipeline according to claim 7, characterized in that, A motor is installed inside the tube (1), and a drive rod (19) is installed at the output end of the motor.

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