Power plant slag bin sintered plate dust remover

Abstract

The utility model discloses a power plant slag bin sintered plate dust remover, which relates to the technical field of dust removal equipment and comprises a dust removal box, a dust removal component, an ash hopper, an air blocking valve, a main fan, an ash cleaning component and the like. During dust removal, dust-containing gas is sucked into the dust hopper through the main fan, part of large-particle dust directly falls into the dust hopper, then dust-containing gas flow is bent upwards to enter the dust removal space under the impact of the wall plates, the flow speed is reduced, and the dust-containing gas flow enters the dust removal space under the action of inertia and dead weight of the dust. The other part of coarse particle dust directly falls into the dust hopper; and other light fine dust is upwards adsorbed on the outer surface of the filtering sintering plate along with the airflow, and is blown into the dust hopper through the dust cleaning assembly. According to the structure, when dust particles with different sizes are removed, the dust removal efficiency can be adjusted by adjusting the number of the filter sintering plates and the arrangement positions of the filter sintering plates in the dust removal space, and different dust removal requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a sintered plate dust collector for a slag bunker in a power plant. Background Technique

[0002] A dust collector is a device that separates dust from flue gas. According to different dust removal principles, it can be divided into dry dust collectors, wet dust collectors, bag dust collectors, electrostatic precipitators, etc. With the continuous wide application and improvement of dust collectors at home and abroad, great progress has been made in the performance of purifying dust-containing gas and the equipment structure. Currently, the bag dust collectors used in the slag (ash) bunkers of power plants, due to the limitation of the environmental space of the indoor equipment layer, the filtration area of the bag dust collectors is mostly within 50 square meters, and the maximum air volume is 3600 cubic meters per hour, far from meeting the dust suction needs of self-unloading trucks for loading and unloading. Some large-filter-area bag dust collectors installed outdoors are extremely prone to bag freezing in winter, resulting in the abnormal operation of the dust removal system. At the same time, the collected dust needs to be manually transported, increasing the manual workload and shortening the service life of the bags, generally one year. In addition, most bag dust collectors have doors and disassembly at the top. Replacing the bags is not safe and the workload is large. The pulse reverse blowing and ash discharging of bag dust collectors consume a large amount of compressed air. The spray air bags and solenoid valves are mostly external type, not only the spray noise is relatively large, but also the external solenoid valves are easily affected by the environment such as wind, sun, bumps, etc., and the service life is short.

[0003] Sintered plate dust collectors are widely used in various air dust removal fields due to their superior wear resistance, good filtration effect, and long service life. For example, patent CN214914271U discloses a sintered plate dust collector. By adding corresponding mechanisms to the sintered plate dust collector, it can play an auxiliary cleaning role for the sintered plate, reduce the poor cleaning effect of the sintered plate during the use of the sintered plate dust collector, reduce the labor intensity of subsequent maintenance and cleaning of the sintered plate, and improve the service life of the sintered plate in the sintered plate dust collector.

[0004] However, for the above-mentioned existing dust collectors, when used in the slag (ash) bunkers of power plants, the dust removal efficiency is usually low when removing dust particles of different sizes, and it cannot meet different dust removal requirements. Therefore, a sintered plate dust collector for a slag bunker in a power plant is needed. Summary of the Invention

[0005] In view of the status quo of the prior art, the utility model provides a sintered plate dust collector for a slag bunker in a power plant, which can effectively solve the problem in the prior art that the dust removal efficiency is usually not adjustable and cannot meet different dust removal requirements when removing dust particles of different sizes.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sintered plate dust collector for the slag bunker of a power plant, comprising:

[0008] A dust removal box, an air outlet is formed on the side wall of the dust removal box, and a dust removal space for dust removal is formed inside.

[0009] A dust removal component, the dust removal component includes an orifice plate and a filter sintered plate, the orifice plate is arranged in the dust removal space and is provided with a plurality of installation stations for installing the filter sintered plate, at least part of the installation stations are correspondingly provided with the filter sintered plate, and a return air channel communicated with the air outlet pipeline is formed inside the filter sintered plate.

[0010] A ash hopper, the ash hopper is arranged at the bottom of the dust removal box and communicated with the dust removal space to recover the dust falling in the dust removal space, and an air inlet for the dust-containing gas to enter is formed on the side wall of the ash hopper.

[0011] A main fan, the main fan is arranged outside the dust removal box and communicated with the return air channel.

[0012] A dust cleaning component, the dust cleaning component is used to supply air to the outer side wall of the filter sintered plate to blow the dust adsorbed on the filter sintered plate into the ash hopper.

[0013] As a further description of the above technical solution:

[0014] The ash hopper includes a support frame and a hopper body, the support frame is used to support the dust removal box, the hopper body is arranged at the bottom of the dust removal box, connected with the support frame and communicated with the dust removal space.

[0015] As a further description of the above technical solution:

[0016] The hopper body is provided with a maintenance window.

[0017] As a further description of the above technical solution:

[0018] A screw conveyor for conveying dust is correspondingly arranged below the hopper body, and a lock air valve for preventing air leakage during the operation of the dust removal system is arranged at the bottom of the screw conveyor.

[0019] As a further description of the above technical solution:

[0020] The dust cleaning component includes an air bag, a spray pipe and a pulse valve, the air bag is arranged in the dust removal box, the spray pipe is arranged on the orifice plate, and the pulse valve is arranged on the spray pipe to control the ejection of air flow to blow the dust adsorbed on the filter sintered plate into the ash hopper.

[0021] As a further description of the above technical solution:

[0022] The dust removal box is provided with an observation window.

[0023] The utility model has the following beneficial effects:

[0024] The sintered plate dust collector for the slag bunker of a power plant provided by the utility model, by arranging components such as the dust removal box, the dust removal assembly, the ash hopper, the air lock valve, the main fan and the dust cleaning assembly, and at least part of the installation stations are provided with the filter sintered plates in a one-to-one correspondence manner, so that the number and the layout position of the filter sintered plates in the dust removal space can be adjusted. In practical applications, first, the main fan is used to suck the dust-containing gas into the ash hopper, and part of the large-particle dust directly falls into the ash hopper. Then, the dust-containing air flow deflects upward under the impact of the wall plate and enters the dust removal space, and at the same time, the flow rate slows down. Under the action of inertia and the self-weight of the dust, another part of the coarser-particle dust directly falls into the ash hopper, playing a role of preliminary dust collection; other lighter and finer dust is adsorbed on the outer surface of the filter sintered plate along with the air flow upward. After being filtered by the filter sintered plate, the clean gas passes through the return air channel and is discharged from the air outlet; and the light and fine dust adsorbed on the filter sintered plate is blown into the ash hopper by the dust cleaning assembly. By arranging the above structure, when removing dust of different particle sizes, the dust removal efficiency can be adjusted by adjusting the number and the layout position of the filter sintered plates in the dust removal space, and different dust removal requirements can be met. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of a sintered plate dust collector for the slag bunker of a power plant proposed by the utility model.

[0026] Figure 2 It is Figure 1 A schematic diagram of the three-dimensional structure of the shown structure with some structures omitted.

[0027] Figure 3 It is Figure 2 A front view structure diagram of the shown structure.

[0028] Figure 4 It is Figure 3 A partial enlarged structure diagram of part A in

[0029] Figure 5 It is Figure 3 A right view structure diagram of the shown structure.

[0030] Legend Explanation:

[0031] 1. Dust removal box; 11. Air outlet; 12. Dust removal space; 13. Observation window; 2. Dust removal component; 21. Orifice plate; 211. Installation station; 22. Filter sintered plate; 3. Ash hopper; 300. Air inlet; 31. Support frame; 32. Hopper body; 321. Maintenance window; 322. Screw conveyor; 3221. Air lock valve; 4. Main fan; 5. Ash cleaning component; 51. Air bag; 52. Blowing pipe; 53. Pulse valve. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0033] Refer to Figures 1 to 5 , a sintered plate dust collector for a slag bin in a power plant provided by the present invention includes a dust removal box 1, a dust removal component 2, an ash hopper 3, a main fan 4 and an ash cleaning component 5.

[0034] An air outlet 11 is formed on the side wall of the dust removal box 1, and a dust removal space 12 for dust removal is formed inside.

[0035] The dust removal component 2 includes an orifice plate 21 and a filter sintered plate 22. The orifice plate 21 is arranged in the dust removal space 12 and is provided with a plurality of installation stations 211 for installing the filter sintered plate 22. At least part of the installation stations 211 are correspondingly provided with the filter sintered plates 22. A return air channel communicating with the air outlet 11 through a pipeline is formed inside the filter sintered plate 22.

[0036] The ash hopper 3 is arranged at the bottom of the dust removal box 1 and communicates with the dust removal space 12 for recovering the dust falling in the dust removal space 12. An air inlet 300 for the inlet of dust-containing gas is formed on the side wall of the ash hopper 3;

[0037] The main fan 4 is arranged outside the dust removal box 1 and communicates with the return air channel.

[0038] The ash cleaning component 5 is used to supply air to the outer side wall of the filter sintered plate 22 to blow off the dust adsorbed on the filter sintered plate 22 into the ash hopper 3.

[0039] The sintered plate dust collector for the slag bunker of a power plant provided by the utility model is provided with components such as a dust removal box 1, a dust removal assembly 2, a hopper 3, a main fan 4 and a dust cleaning assembly 5. At least part of the installation stations 211 are correspondingly provided with the filter sintered plates 22, so that the number and the layout positions of the filter sintered plates 22 in the dust removal space 12 can be adjusted. In practical applications, first, the main fan 4 is used to suck the dust-containing gas into the hopper 3. Part of the large-particle dust directly falls into the hopper 3. Then, the dust-containing air flow turns upward under the impact of the wall plate and enters the dust removal space 12. At the same time, the flow rate slows down. Under the action of inertia and the self-weight of the dust, another part of the coarser-particle dust directly falls into the hopper 3, playing a role of pre-dust collection. Other lighter and finer dust is adsorbed on the outer surface of the filter sintered plates 22 along with the air flow. After being filtered by the filter sintered plates 22, the clean gas passes through the return air channel and is discharged from the air outlet 11. The light and fine dust adsorbed on the filter sintered plates 22 is blown into the hopper 3 by the dust cleaning assembly 5. By setting the above structure, when removing dust from dust particles of different sizes, the dust removal efficiency can be adjusted by adjusting the number and the layout positions of the filter sintered plates 22 in the dust removal space 12, so as to meet different dust removal requirements.

[0040] To facilitate the collection of dust, the hopper 3 includes a support frame 31 and a hopper body 32. The support frame 31 is used to support the dust removal box 1. The hopper body 32 is arranged at the bottom of the dust removal box 1, connected to the support frame 31 and communicated with the dust removal space 12. By setting the support frame 31 and the hopper body 32, the height of the dust removal box 1 can be increased, and the height and capacity of the hopper body 32 can be appropriately increased to facilitate the collection of dust.

[0041] To facilitate the dredging of the inside of the hopper body 32, the hopper body 32 is provided with a maintenance window 321. By setting the maintenance window 321, the inside of the hopper body 32 can be dredged, which is convenient for practical applications.

[0042] To facilitate the transportation of dust, a screw conveyor 322 for transporting dust is correspondingly arranged below the hopper body 32. A gas locking valve 3221 for preventing air leakage during the operation of the dust removal system is arranged at the bottom of the screw conveyor 322. When it is necessary to discharge the dust in the hopper body 32, the valve can be opened first, and then the falling dust can be transported through the screw conveyor 322. In particular, the screw conveyor 322 can also be replaced with a gravity flap valve or a star-shaped discharger, both of which can be used for transporting and discharging ash. Adding the gas locking valve 3221 can prevent air leakage during the operation of the dust removal system, which is convenient for practical applications.

[0043] To improve the dust removal efficiency, the dust cleaning assembly 5 includes an air receiver 51, a blowpipe 52 and a pulse valve 53. The air receiver 51 is arranged inside the dust removal box 1, the blowpipe 52 is arranged on the orifice plate 21, and the pulse valve 53 is arranged on the blowpipe 52 to control the ejection of air flow, so as to blow off the dust adsorbed on the filter sintered plate 22 into the ash hopper 3. By arranging the air receiver 51, the blowpipe 52 and the pulse valve 53, and adjusting the quantity and the layout position in the dust removal space 12 of the filter sintered plate 22, and making the filter sintered plate 22 and the blowpipe 52 correspond to each other, so as to adapt to different dust removal scenarios, the dust removal efficiency can be improved.

[0044] To monitor the condition of the pulse valve 53 in real time, the dust removal box 1 is provided with an observation window 13. By providing the observation window 13, the condition of the pulse valve 53 can be monitored in real time, which is convenient for practical application.

[0045] Working principle: First, the main fan 4 sucks the dust-containing gas into the ash hopper 3. Part of the large-particle dust directly falls into the ash hopper 3. After that, the dust-containing air flow deflects upward under the impact of the wall plate and enters the dust removal space 12. At the same time, the flow rate slows down. Under the action of inertia and the self-weight of the dust, another part of the coarser-particle dust directly falls into the ash hopper 3, playing a role of preliminary dust collection; other lighter and finer dust is adsorbed on the outer surface of the filter sintered plate 22 along with the air flow. After being filtered by the filter sintered plate 22, the clean gas passes through the return air channel and is discharged from the air outlet 11; while the light and fine dust adsorbed on the filter sintered plate 22 is blown into the ash hopper 3 by the dust cleaning assembly 5.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sintered plate dust collector for the slag bin of a power plant, characterized in that, Including: A dust removal box (1), a side wall of the dust removal box (1) is provided with an air outlet (11), and a dust removal space (12) for dust removal is formed inside; A dust removal component (2), the dust removal component (2) includes an orifice plate (21) and a filter sintered plate (22), the orifice plate (21) is arranged in the dust removal space (12) and is provided with a plurality of installation stations (211) for installing the filter sintered plate (22), at least part of the installation stations (211) are correspondingly provided with the filter sintered plate (22), and an air return channel communicating with the air outlet (11) through a pipeline is formed inside the filter sintered plate (22); A dust hopper (3), the dust hopper (3) is arranged at the bottom of the dust removal box (1) and communicates with the dust removal space (12) to recover the dust falling in the dust removal space (12), and an air inlet (300) for the dust-containing gas to enter is provided on a side wall of the dust hopper (3); A main fan (4), the main fan (4) is arranged outside the dust removal box (1) and communicates with the air return channel; A dust cleaning component (5), the dust cleaning component (5) is used for supplying air to the outer side wall of the filter sintered plate (22) to blow the dust adsorbed on the filter sintered plate (22) into the dust hopper (3).

2. The sintered plate dust collector for the slag bunker of the power plant according to claim 1, characterized in that: The dust hopper (3) includes a support frame (31) and a hopper body (32), the support frame (31) is used for supporting the dust removal box (1), the hopper body (32) is arranged at the bottom of the dust removal box (1), is connected to the support frame (31) and communicates with the dust removal space (12).

3. The sintered plate dust collector for the slag bunker of the power plant according to claim 2, characterized in that: The hopper body (32) is provided with a maintenance window (321).

4. The sintered plate dust collector for the slag bunker of a power plant according to claim 2, characterized in that: A screw conveyor (322) for conveying dust is correspondingly arranged below the hopper body (32), and an air lock valve (3221) for preventing air leakage during the operation of the dust removal system is arranged at the bottom of the screw conveyor (322).

5. The sintered plate dust collector for the slag bunker of a power plant according to claim 1, characterized in that: The dust cleaning component (5) includes an air bag (51), a blowpipe (52) and a pulse valve (53), the air bag (51) is arranged in the dust removal box (1), the blowpipe (52) is arranged on the orifice plate (21), and the pulse valve (53) is arranged on the blowpipe (52) to control the ejection of air flow to blow the dust adsorbed on the filter sintered plate (22) into the dust hopper (3).

6. The sintered plate dust collector for the slag bunker of a power plant according to claim 1, wherein: The dust removal box (1) is provided with an observation window (13).

Images