A comprehensive type of ash conveying device for power plant

Abstract

The utility model relates to a kind of ash conveying device of comprehensive power plant in ash conveying equipment technical field, including bin pump, bin pump bottom side connection gas pipe, the other side connection ash pipe, and the end of ash pipe is equipped with elbow. Motor is installed in the side of elbow, motor drives shaft, and shaft is inserted with spline head of driven shaft through spline groove. Driven shaft is partially sleeved with hemispherical flow divider in elbow, and flow divider is realized elastic support by spring, support ring, ball and pressure sleeve, and the inner wall of ash pipe is attached with spiral scraper, and driven shaft is connected with spiral scraper by connecting plate. When motor drives, spiral scraper cleans the inner wall of ash pipe, to prevent ash blockage;Flow divider shunts airflow, to avoid dust particles long-time scouring elbow inner wall, to prolong the service life of elbow. The utility model effectively improves ash conveying efficiency, reduces equipment replacement cost and maintenance workload.

Description

Technical Field

[0001] This utility model relates to the field of ash conveying equipment technology, specifically to an integrated ash conveying device for power plants. Background Technology

[0002] In industrial production such as power plants, ash conveying devices are one of the key pieces of equipment to ensure the smooth operation of the production process. Their main function is to transport ash and slag produced by combustion from one location to another for further processing. The stability and efficiency of the ash conveying process directly affect the overall operation of the production system.

[0003] However, in existing ash conveying devices, dust easily adheres to the inner wall of the conveying pipe during the ash conveying process. Over time, the accumulated dust gradually increases, eventually leading to blockage of the ash conveying pipe, severely affecting ash conveying efficiency, and even forcing the entire production process to be interrupted. On the other hand, during ash conveying, the airflow carries dust particles through elbows. Due to the structural characteristics of elbows, dust particles tend to concentrate and scour the inner wall of the side with the larger curvature of the elbow for a long time, causing the wear rate of this side to be much faster than other parts. This significantly shortens the service life of the elbow and increases equipment replacement costs and maintenance workload. Therefore, those skilled in the art have provided an integrated power plant ash conveying device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned defects and provide an integrated ash conveying device for power plants. It solves the technical problems of existing ash conveying devices, where dust easily adheres to the inner wall of the ash conveying pipe during the ash conveying process, causing blockage of the ash conveying pipe, and the airflow carrying dust particles passing through the bend during ash conveying causes the dust particles to concentrate and scour the inner wall of the side with a larger curvature of the bend for a long time, making the wear rate of the inner wall of that side much faster than other parts.

[0005] The objective of this utility model is achieved through the following means:

[0006] An integrated ash conveying device for a power plant includes a silo pump. A gas conveying pipe is connected to one side of the bottom of the silo pump, and an ash conveying pipe is connected to the other side of the bottom of the silo pump. One end of the ash conveying pipe is connected to an elbow. A motor is installed on one side of the elbow. The output end of the motor towards the elbow drives a rotating shaft. A spline groove is formed at the end of the rotating shaft facing the elbow. A driven shaft is inserted into the elbow. A spline head is provided at the end of the driven shaft facing the spline groove. A diverter head is fitted onto the portion of the driven shaft inside the elbow. The diverter head is hemispherical. A spring is installed on the side of the diverter head facing the inner wall of the elbow. A support ring is connected to the other end of the spring. A ball bearing is installed on the side of the support ring away from the spring. A pressure sleeve is provided on the side of the support ring facing the inner wall of the elbow. A spiral scraper is attached to the inner wall of the ash conveying pipe.

[0007] Furthermore, the driven shaft is connected to a connecting plate inside the ash conveying pipe. The driven shaft is connected to the spiral scraper through the connecting plate. Since the spiral scraper is in close contact with the inner wall of the ash conveying pipe, when the motor drives the shaft to rotate, the spiral scraper can clean the inner wall of the ash conveying pipe, preventing dust from adhering to the inner wall of the ash conveying pipe and causing blockage.

[0008] Furthermore, an mounting plate is installed on the outer wall of the elbow, and screws are provided on the mounting plate. The motor is connected to the mounting plate through the screws.

[0009] Furthermore, the driven shaft is connected to a rotating shaft with a splined groove via a splined head.

[0010] Furthermore, the diverter head is slidably sleeved with the driven shaft, the spring is slidably sleeved with the driven shaft, the support ring is slidably sleeved with the driven shaft, and the ball is in contact with the end face of the pressure sleeve.

[0011] Furthermore, the pressure sleeve is sleeved with the driven shaft, and the end of the pressure sleeve away from the ball fits against the arc-shaped inner wall of the elbow.

[0012] Furthermore, the diverter and elbow are made of ceramic material.

[0013] The beneficial effects of this invention are as follows: The motor drives the rotating shaft, and the spline head and spline groove work together to rotate the driven shaft, causing the spiral scraper to clean the inner wall of the ash conveying pipe. This effectively prevents dust from adhering to the inner wall of the ash conveying pipe and causing blockages, ensuring smooth flow and improving ash conveying efficiency. Simultaneously, the pressure sleeve, support ring, ball bearings, and spring structure on the driven shaft provide elastic support for the diverter head. Furthermore, the hemispherical diverter head can divert airflow during ash conveying, preventing dust particles from continuously scouring the inner wall of the elbow with a larger curvature, thus preventing excessive wear on one side of the elbow and extending its service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an integrated ash conveying device for a power plant according to the present invention;

[0015] Figure 2 This is a structural cross-sectional view of the gas conveying pipe in an integrated power plant ash conveying device according to this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the diversion head in a comprehensive ash conveying device for a power plant according to this utility model;

[0017] Figure 4 This is a schematic diagram of the spline groove structure in an integrated power plant ash conveying device according to this utility model;

[0018] In the diagram: 1. Silo pump; 2. Gas delivery pipe; 3. Ash delivery pipe; 4. Elbow; 5. Mounting plate; 501. Screw; 6. Motor; 7. Shaft; 701. Spline groove; 8. Driven shaft; 801. Spline head; 9. Spiral scraper; 10. Connecting plate; 11. Diverter head; 12. Spring; 13. Support ring; 14. Ball bearing; 15. Pressure sleeve. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In this embodiment, refer to Figure 1 - Figure 4 The specific implementation of the integrated power plant ash conveying device includes a silo pump 1, a gas conveying pipe 2 connected to one side of the bottom of the silo pump 1, and an ash conveying pipe 3 connected to the other side of the bottom of the silo pump 1. One end of the ash conveying pipe 3 is connected to an elbow 4. A motor 6 is installed on one side of the elbow 4. The output end of the motor 6 towards the elbow 4 drives a rotating shaft 7. A spline groove 701 is opened on the end of the rotating shaft 7 facing the elbow 4. A driven shaft 8 is inserted into the elbow 4. A spline head 801 is provided on the end of the driven shaft 8 facing the spline groove 701. A diverter head 11 is sleeved on the part of the driven shaft 8 inside the elbow 4. The diverter head 11 is hemispherical. A spring 12 is provided on the side of the diverter head 11 facing the inner wall of the elbow 4. A support ring 13 is connected to the other end of the spring 12. A ball bearing 14 is installed on the side of the support ring 13 away from the spring 12. A pressure sleeve 15 is provided on the side of the support ring 13 facing the inner wall of the elbow 4. A spiral scraper 9 is attached to the inner wall of the ash conveying pipe 3.

[0021] The driven shaft 8, located inside the ash conveying pipe 3, is connected to a connecting plate 10. The driven shaft 8 is connected to the spiral scraper 9 via the connecting plate 10. Because the spiral scraper 9 is in close contact with the inner wall of the ash conveying pipe 3, when the motor 6 drives the rotating shaft 7 to rotate, the spiral scraper 9 can clean the inner wall of the ash conveying pipe 3, preventing dust from adhering to the inner wall and causing blockage. An mounting plate 5 is installed on the outer wall of the elbow 4, and screws 501 are provided on the mounting plate 5. The motor 6 is connected to the elbow 4 via screws 501. Mounting plate 5 is connected. Driven shaft 8 is inserted into rotating shaft 7 with spline groove 701 via spline head 801. Diverter head 11 is slidably sleeved with driven shaft 8. Spring 12 is slidably sleeved with driven shaft 8. Support ring 13 is slidably sleeved with driven shaft 8. Ball 14 contacts the end face of pressure sleeve 15. Pressure sleeve 15 is sleeved with driven shaft 8. The end of pressure sleeve 15 away from ball 14 fits against the arc-shaped inner wall of elbow 4. Diverter head 11 and elbow 4 are made of ceramic material.

[0022] The working principle of this device is as follows: One end of the bottom of the silo pump 1 is connected to the air supply pipe 2, and the other end is connected to the ash supply pipe 3. The end of the ash supply pipe 3 away from the silo pump 1 is connected to the elbow 4 through a flange. A mounting plate 5 is fixed on the outer wall of the elbow 4. A motor 6 is fixedly mounted on the mounting plate 5 by screws 501. The output end of the motor 6 facing the elbow 4 drives the rotating shaft 7. The end of the rotating shaft 7 is provided with a spline groove 701. A driven shaft 8 is provided on one side of the mounting plate 5 and passes through the elbow 4. One end of the driven shaft 8 is provided with... A spline head 801 is inserted into a spline groove 701 on a rotating shaft 7. A connecting plate 10 is connected to the outer wall of the portion of the driven shaft 8 inside the ash conveying pipe 3. A spiral scraper 9 is installed at the other end of the connecting plate 10. The spiral scraper 9 is in close contact with the inner wall of the ash conveying pipe 3. When the motor 6 drives the rotating shaft 7 to rotate, the driven shaft 8 is driven to rotate through the spline head 801 and the rotating shaft 7 with the spline groove 701, so that the spiral scraper 9 can clean the inner wall of the ash conveying pipe 3 and prevent dust from adhering to the inner wall of the ash conveying pipe 3 and causing blockage.

[0023] Furthermore, a pressure sleeve 15 is fitted inside the elbow 4 on the driven shaft 8. One end of the pressure sleeve 15 is pressed against the inner wall of the elbow 4. A support ring 13 is provided on the side of the pressure sleeve 15 away from the inner wall of the elbow 4. A ball bearing 14 is installed on the side of the support ring 13 that contacts the end of the pressure sleeve 15. A spring 12 is installed on the other side of the support ring 13. A diverter head 11 is also slidably fitted on the driven shaft 8. The diverter head 11 is hemispherical and the arc surface faces the output end of the ash conveying pipe 3. When the airflow passes through the hemispherical diverter head 11 during ash conveying, it can be diverted by the diverter head 11 and then conveyed through the elbow 4. This structure can avoid the problem of dust particles scouring the inner wall of the elbow 4 with a larger arc for a long time, causing the elbow 4 to wear too quickly on one side.

[0024] The diverter head 11 and elbow 4 in the above structure are both made of ceramic material, which has the characteristic of high hardness. Elbow 4 is connected to ash conveying pipe 3 through flange, and driven shaft 8 is inserted into the rotating shaft 7 on motor 6. Elbow 4 and diverter head 11 can be quickly replaced in the later stage.

[0025] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An integrated ash conveying device for a power plant, comprising a silo pump (1), characterized in that: A gas delivery pipe (2) is connected to one side of the bottom of the silo pump (1), and an ash delivery pipe (3) is connected to the other side of the bottom of the silo pump (1). One end of the ash delivery pipe (3) is connected to an elbow (4) from the silo pump (1). A motor (6) is installed on one side of the elbow (4). The output end of the motor (6) facing the elbow (4) drives a rotating shaft (7). A spline groove (701) is opened at the end of the rotating shaft (7) facing the elbow (4). A driven shaft (8) is inserted into the elbow (4). A spline head is provided at the end of the driven shaft (8) facing the spline groove (701). (801) A diverter head (11) is fitted on the part of the driven shaft (8) inside the bend (4). The diverter head (11) is hemispherical. A spring (12) is provided on the side of the diverter head (11) facing the inner wall of the bend (4). A support ring (13) is connected to the other end of the spring (12). A ball bearing (14) is installed on the side of the support ring (13) away from the spring (12). A pressure sleeve (15) is provided on the side of the support ring (13) facing the inner wall of the bend (4). A spiral scraper (9) is attached to the inner wall of the ash conveying pipe (3).

2. The integrated power plant ash conveying device according to claim 1, characterized in that: The driven shaft (8) inside the ash conveying pipe (3) is connected to a connecting plate (10), and the driven shaft (8) is connected to the spiral scraper (9) through the connecting plate (10).

3. The integrated power plant ash conveying device according to claim 1, characterized in that: An mounting plate (5) is installed on the outer wall of the elbow (4), and screws (501) are provided on the mounting plate (5). The motor (6) is connected to the mounting plate (5) through the screws (501).

4. The integrated power plant ash conveying device according to claim 1, characterized in that: The driven shaft (8) is connected to the rotating shaft (7) with a spline groove (701) via a spline head (801).

5. The integrated power plant ash conveying device according to claim 1, characterized in that: The diverter head (11) is slidably sleeved with the driven shaft (8), the spring (12) is slidably sleeved with the driven shaft (8), the support ring (13) is slidably sleeved with the driven shaft (8), and the ball (14) is in contact with the end face of the pressure sleeve (15).

6. The integrated power plant ash conveying device according to claim 1, characterized in that: The pressure sleeve (15) is sleeved with the driven shaft (8), and the end of the pressure sleeve (15) away from the ball (14) fits against the arc-shaped inner wall of the elbow (4).

7. The integrated power plant ash conveying device according to claim 1, characterized in that: The splitter head (11) and elbow (4) are made of ceramic material.

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