A device for emptying the ash deposits from a flue

Abstract

The utility model discloses a device of emptying and discharging pipeline accumulated ash, belongs to the pipeline optimization technical field of dust remover discharging system, including unloading ash valve, discharging pipeline and grating, wherein, unloading ash valve is connected in the bottom export of dust remover ash bin, and discharging pipeline is connected in the export of unloading ash valve, and grating is fixedly arranged in the discharging pipeline and is close to the interface end of suction and discharge irrigation car, and the discharging pipeline still is provided with the unloading ash valve that opens to empty the residual accumulated ash in the discharging pipeline after the alarm of suction and discharge irrigation car, and the unloading ash valve is located on the pipe section between unloading ash valve and grating. The utility model discloses through adding unloading ash valve before grating, only needs to open unloading ash valve after the alarm of suction and discharge irrigation car, can empty the residual ash in the pipeline quickly, need not manual dismounts and installs the connecting pipe, and the ash discharging period is greatly shortened, and the turnover efficiency of suction and discharge irrigation car is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline optimization technology for dust collector ash discharge systems, and in particular to a device for ash accumulation in ash discharge pipelines. Background Technology

[0002] In the production processes of industries such as metallurgy (e.g., steelmaking) and power generation, dust collectors are key environmental protection equipment. Their core function is to collect the dust generated during production, temporarily store the dust in an ash silo, and then transfer the dust to a suction and discharge truck via an ash discharge valve and ash discharge pipeline for centralized dust treatment. However, existing dust collector ash discharge pipeline systems have the following defects in long-term operation: To prevent loose iron objects and large particles from clogging the ash suction port and pump of the ash discharge truck, existing ash discharge pipes are usually fitted with a grate at the end (near the truck interface). However, impurities in the dust (including fragments of deformed valve plates and fine iron filings) easily adhere to the mesh of the grate and gradually accumulate during the ash discharge process, leading to blockage. Because the grate is located inside the pipe, it cannot be directly observed, and there are no obvious signs in the early stages of blockage. Only when the blockage becomes severe enough to affect the ash suction efficiency (such as a significant decrease in the ash suction speed of the truck) or even triggers the "insufficient ash suction" alarm can staff detect it. At this point, a large amount of dust has accumulated in the pipe, greatly increasing the difficulty of cleaning.

[0003] When the suction and discharge truck alarms, a large amount of dust remains in the ash discharge pipe. Because the negative pressure disappears after the truck stops suction, the residual dust loses its momentum and easily adheres to the pipe wall or accumulates at the front of the grate, unable to fall naturally. Current methods require workers to manually disassemble the flange connections of the ash discharge pipe, install temporary connections, and discharge the residual ash through external negative pressure equipment or manual cleaning. This process involves repeated disassembly and reassembly of the flange bolts, is cumbersome, and dust leaks are prone to occur during disassembly and reassembly, polluting the working environment.

[0004] Meanwhile, when the ash discharge pipes are in operation, the dust carries a certain amount of heat when it is discharged from the ash hopper, and the temperature of the pipe walls and grate can reach 80-150℃. If the grate or connection is cleaned before the pipes have cooled down, workers are prone to burns from direct contact with the high-temperature pipes; if the pipes are allowed to cool down naturally, the downtime of the ash discharge system will be prolonged, affecting production efficiency.

[0005] In summary, existing dust collector ash discharge pipeline systems suffer from low ash discharge efficiency, high equipment failure rate, and significant personnel safety risks. There is an urgent need for a simple and easy-to-implement technical solution to address these issues. Utility Model Content

[0006] To address the problems of low ash discharge efficiency, high equipment failure rate, and significant personnel safety risks associated with existing dust collector ash discharge piping systems, this invention provides a device for emptying accumulated ash from ash discharge pipes. By adding a quick-opening valve to the front end of the original pipe grate and optimizing the auxiliary structure, it achieves the goals of rapid ash discharge, timely detection of grate blockage, and safe operation by personnel.

[0007] The technical solution adopted by this utility model for a device for discharging ash from ash-collecting pipes is as follows: A device for emptying ash accumulation in a ash discharge pipe includes an ash discharge valve, an ash discharge pipe, and a grate. The ash discharge valve is connected to the bottom outlet of the dust collector's ash hopper, the ash discharge pipe is connected to the outlet of the ash discharge valve, the grate is fixedly installed inside the ash discharge pipe and close to the interface end of the suction and discharge vehicle, and the ash discharge pipe is also equipped with an ash discharge valve that opens after the suction and discharge vehicle alarms to empty the residual ash in the ash discharge pipe, and the ash discharge valve is located on the pipe section between the ash discharge valve and the grate.

[0008] A further improvement of this utility model is that the distance between the ash discharge valve and the grate is 500-800mm, and the nominal diameter of the ash discharge valve is compatible with the diameter of the ash discharge pipe.

[0009] A further improvement of this utility model is that the ash discharge valve is fixed to the ash discharge pipe by means of a flange connection, and a sealing gasket is provided between the flanges.

[0010] A further improvement of this utility model is that it also includes a ash discharge hose, which is detachably connected to the outlet end of the ash discharge valve, and the length of the ash discharge hose is 2-4m.

[0011] A further improvement of this utility model is that it also includes a temperature sensor for detecting the pipe wall temperature of the ash discharge pipe and outputting a temperature signal. The temperature sensor is fixedly installed on the outer wall of the ash discharge pipe and close to the grate.

[0012] A further improvement of this utility model is that it also includes a transparent observation window, which is disposed on the ash discharge pipe and located between the ash discharge valve and the grate; wherein, the transparent observation window includes tempered glass, a metal frame and a high-temperature resistant sealing ring, the tempered glass is fixed in the metal frame by a pressure strip, the metal frame is fixedly connected to the ash discharge pipe, and the high-temperature resistant sealing ring is disposed between the metal frame and the tempered glass.

[0013] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows: This invention adds a ash discharge valve to the front end of the grate. When the suction and discharge irrigation truck alarms, simply opening the ash discharge valve will quickly empty the residual ash in the pipeline without the need for manual disassembly and assembly of the pipes. This significantly shortens the ash discharge cycle and improves the turnover efficiency of the suction and discharge irrigation truck.

[0014] The opening and closing status of the ash discharge valve of this utility model can indirectly reflect the clogging status of the grate. If the residual ash is discharged smoothly after the ash discharge valve is opened, it indicates that the grate is not clogged. If the discharge volume is very small or no ash is discharged, it can be determined that the grate is clogged. The staff can arrange for cleaning in advance to avoid waiting until the pipeline is completely blocked before stopping the machine.

[0015] This invention uses a temperature sensor to monitor the pipe temperature in real time, allowing workers to clean the grate only after the pipe has cooled to a safe temperature, thus avoiding burns from high temperatures. At the same time, the use of a ash discharge hose reduces dust leakage, and the transparent observation window enables visual monitoring without requiring personnel to come into close contact with the pipe, further reducing operational risks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a device for ash collection in an ash discharge pipe according to the present invention; Figure 2 This is a cross-sectional view of the ash discharge pipe and ash discharge valve of the device for discharging ash from ash discharge pipes according to the present invention.

[0017] In the attached diagram: 1. Ash discharge valve; 2. Ash discharge pipe; 3. Grate; 4. Ash discharge valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.

[0019] Example 1 like Figure 1 and Figure 2 As shown, this embodiment provides a device for emptying ash from a ash discharge pipe, including an ash discharge valve 1, an ash discharge pipe 2, and a grate 3. The ash discharge valve 1 is connected to the bottom outlet of the dust collector's ash hopper via a flange, and is used to quantitatively transport the dust in the ash hopper to the ash discharge pipe 2. One end of the ash discharge pipe 2 is connected to the outlet of the ash discharge valve 1, and the other end extends to the interface of the suction and discharge truck, and is used to transport dust. The grate 3 is fixed inside the ash discharge pipe 2 near the interface of the truck. It is made of 304 stainless steel with a mesh diameter of 8-12mm. It is detachably connected to the flange of the ash discharge pipe 2 by bolts, which is convenient for later cleaning or replacement.

[0020] This embodiment also includes an ash discharge valve 4, which is installed on the ash discharge pipe 2 and located in the pipe section between the ash discharge valve 1 and the grate 3. The distance between the ash discharge valve 4 and the grate 3 is 500-800mm (preferably 600mm). It is used to close during normal ash discharge and to open after the suction and discharge truck alarms to empty the residual ash in the pipe. In this embodiment, the quick-opening valve can be a manual quick-opening butterfly valve or a pneumatic quick-opening valve, which is sealed to the ash discharge pipe 2 through a flange. At the same time, a nitrile rubber sealing gasket is provided between the flanges to prevent ash leakage.

[0021] When the ash discharge valve 4 is a pneumatic quick-opening valve, this embodiment should also include an air source device and a control switch. The air source device is a small air compressor. The air source device is connected to the drive end of the pneumatic quick-opening valve through an air pipe. The control switch is set on the operating platform. The control switch is used to control the on / off of the air source device to realize the opening and closing of the pneumatic quick-opening valve.

[0022] This embodiment also includes a ash discharge hose, which is detachably connected to the outlet end of the ash discharge valve 4. The hose is 2-4m long and made of wear-resistant rubber. It can directly discharge residual ash to a designated ash collection device to avoid dust leakage.

[0023] In this embodiment, a temperature sensor is installed on the ash discharge pipe 2. The temperature sensor is fixed on the outer wall of the ash discharge pipe 2 near the grate 3 to detect the pipe wall temperature in real time. When the temperature drops to a safe temperature (such as below 40°C), it can remind the staff to clean the grate 3 to avoid burns.

[0024] This embodiment also includes a transparent observation window, which is located on the ash discharge pipe 2 and between the ash discharge valve 4 and the grate 3. In this embodiment, the transparent observation window includes tempered glass, a metal frame, and a high-temperature resistant sealing ring. The tempered glass is fixed inside the metal frame by a pressure strip. The metal frame is fixedly connected to the ash discharge pipe 2. The high-temperature resistant sealing ring is located between the metal frame and the tempered glass. The staff can directly observe the amount of ash accumulated in the pipe and the blockage of the grate 3, realizing visual monitoring.

[0025] In the above embodiments, this utility model provides a device for emptying ash from ash discharge pipes. By adding an ash discharge valve at the front end of the grate, the residual ash in the pipe can be quickly emptied by simply opening the ash discharge valve after the suction and discharge truck alarms, without the need for manual disassembly and reassembly of the pipes, significantly shortening the ash discharge cycle and improving the turnover efficiency of the suction and discharge truck. The opening and closing status of the ash discharge valve can indirectly reflect the grate blockage. If the residual ash is discharged smoothly after the ash discharge valve is opened, it indicates that the grate is not blocked. If the discharge volume is very small or no ash is discharged, it can be determined that the grate is blocked, and the staff can arrange for cleaning in advance to avoid stopping the machine after the pipe is completely blocked. This utility model monitors the pipe temperature in real time through a temperature sensor, and the staff can clean the grate after the pipe has cooled to a safe temperature, avoiding high temperature burn accidents. At the same time, the use of ash discharge hoses reduces dust leakage, and the transparent observation window enables visual monitoring without requiring personnel to come into close contact with the pipe, further reducing the operational risks.

[0026] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A device for emptying ash-accumulated pipes, characterized in that: It includes an ash discharge valve (1), an ash discharge pipe (2), and a grate (3); wherein, the ash discharge valve (1) is connected to the bottom outlet of the dust collector ash hopper, the ash discharge pipe (2) is connected to the outlet of the ash discharge valve (1), the grate (3) is fixedly installed inside the ash discharge pipe (2) and close to the interface end of the suction and discharge truck, and the ash discharge pipe (2) is also equipped with an ash discharge valve (4) that opens after the suction and discharge truck alarms to empty the residual ash in the ash discharge pipe (2), and the ash discharge valve (4) is located on the pipe section between the ash discharge valve (1) and the grate (3).

2. The device for venting ash accumulation in an ash discharge pipe according to claim 1, characterized in that: The distance between the ash discharge valve (4) and the grate (3) is 500-800mm, and the nominal diameter of the ash discharge valve (4) is compatible with the diameter of the ash discharge pipe (2).

3. The device for venting ash accumulation in an ash discharge pipe according to claim 1, characterized in that: The ash discharge valve (4) is fixed to the ash discharge pipe (2) by means of flange connection, and a sealing gasket is provided between the flanges.

4. The device for emptying ash-accumulating pipes according to claim 1, characterized in that: It also includes a ash discharge hose, which is detachably connected to the outlet end of the ash discharge valve (4), and the length of the ash discharge hose is 2-4m.

5. The device for venting ash accumulation in an ash discharge pipe according to claim 1, characterized in that: It also includes a temperature sensor for detecting the wall temperature of the ash discharge pipe (2) and outputting a temperature signal. The temperature sensor is fixedly installed on the outer wall of the ash discharge pipe (2) and close to the grate (3).

6. The device for venting ash accumulation in an ash discharge pipe according to claim 1, characterized in that: It also includes a transparent observation window, which is set on the ash discharge pipe (2) and located between the ash discharge valve (4) and the grate (3); wherein, the transparent observation window includes tempered glass, a metal frame and a high-temperature resistant sealing ring, the tempered glass is fixed in the metal frame by a pressure strip, the metal frame is fixedly connected to the ash discharge pipe (2), and the high-temperature resistant sealing ring is located between the metal frame and the tempered glass.

Images