Flue anti-ash-blocking connecting structure for connecting deacidification tower into bag-type dust collector

Abstract

The flue anti-ash-blocking connecting structure comprises a circular pipe body, a magnetic suction plate is arranged on the outer side wall of the circular pipe body in a sliding mode, a first guide assembly is arranged between the magnetic suction plate and the circular pipe body, a magnetic suction lantern ring attracted to the magnetic suction plate is arranged on the inner side wall of the circular pipe body in a sliding mode, and a second guide assembly is arranged between the magnetic suction lantern ring and the circular pipe body. Scraping heads abutting against the inner side wall of the circular pipe body are arranged on the two sides of the magnetic attraction lantern ring correspondingly, and a second guide assembly is arranged between the magnetic attraction lantern ring and the circular pipe body. According to the device, the scraping heads on the two sides of the magnetic attraction lantern ring abut against the inner side wall of the circular pipe body through the magnetic force between the magnetic attraction plate and the magnetic attraction lantern ring, the magnetic attraction plate slides on the outer side wall of the circular pipe body in a reciprocating mode, and the magnetic attraction lantern ring drives the scraping heads to effectively scrape off fly ash particles attached to and deposited on the inner side wall of the circular pipe body; therefore, the flue gas smoothly flows in the circular pipe main body, and the circular pipe main body does not need to be disassembled for multiple times for cleaning, so that the treatment efficiency of the flue gas is improved.

Description

Technical Field

[0001] The present application relates to the technical field of waste incineration flue gas treatment, and in particular to a flue ash blocking prevention connection structure for connecting a deacidification tower to a bag filter. Background Art

[0002] At present, the flue gas purification system of waste incineration power generation mainly includes two parts: flue gas absorption purification and flue gas dust removal. Among them, the semi-dry method has a pollutant desulfurization efficiency between the dry method and the wet method. It has the advantages of being relatively simple, low investment and operating costs, and no wastewater. It is increasingly used in the tail gas purification system of domestic waste incineration power plants. The desulfurization tower is the main device in the semi-dry flue gas desulfurization process, and the bag dust removal device at the rear is mainly used to remove fly ash particles.

[0003] Many domestic waste incineration power plants have ash blockage problems in their flue gas purification systems, but the severity, location and impact of the blockage vary. Among all the ash blockages in the flue gas purification system, the most common one is the blockage of the flue gas from the outlet of the deacidification tower to the inlet of the bag filter.

[0004] In the related art, an anti-blocking transition circular tube is installed between the circulating flue connected to the deacidification tower and the bag-type dust collector, one end of the anti-blocking transition circular tube is connected with a reducer, the reducer is connected to the circulating flue, the other end of the anti-blocking transition circular tube is an inclined end face pipe opening, the inclined end face pipe opening is matched and connected with the outlet of the conical tower section of the deacidification tower, and a baffle is also arranged at the end of the anti-blocking transition circular tube away from the reducer. The combination of the baffle and the inclined end face pipe opening is beneficial to the interception of the swirling gas in the conical tower section of the deacidification tower entering the anti-blocking transition circular tube, and the anti-blocking transition circular tube mainly functions to increase the air flow velocity of the deacidification tower entering the middle and lower part of the circulating flue, reduce the velocity difference between the middle and upper parts and the middle and lower parts of the circulating flue, so that the fly ash particles move evenly and the swirling phenomenon is weakened, so that the fly ash can pass through the circulating flue more smoothly into the bag-type dust collector.

[0005] With regard to the above-mentioned related technologies, the inventors believe that: when the flue gas discharged from the deacidification tower is transported through the anti-blocking transition circular pipe, the fly ash particles in the flue gas are easy to adhere to and deposit on the inner wall of the circular pipe, affecting the flow of the flue gas, so the circular pipe needs to be disassembled and cleaned many times. Such multiple disassembly and assembly methods seriously affect the flue gas treatment efficiency. Utility Model Content

[0006] The purpose of the present application is to provide a flue ash blocking prevention structure for connecting a deacidification tower to a bag filter, so as to solve the problem that when the flue gas discharged from the deacidification tower is transported through an anti-blocking transition circular pipe, fly ash particles in the flue gas are easily adhered and deposited on the inner wall of the circular pipe, affecting the flow of the flue gas, so the circular pipe needs to be disassembled for cleaning many times, and such multiple disassembly and assembly methods seriously affect the flue gas treatment efficiency.

[0007] The present application provides a smoke duct anti-blocking ash connection structure for connecting a deacidification tower to a bag filter, which adopts the following technical solution:

[0008] A flue ash blocking prevention connection structure for connecting a deacidification tower to a bag dust collector comprises a circular tube main body, a magnetic plate is slidably provided on the outer wall of the circular tube main body, a first guide component is provided between the magnetic plate and the circular tube main body, a magnetic ring attracted to the magnetic plate is slidably provided on the inner wall of the circular tube main body, scrapers abutting against the inner wall of the circular tube main body are provided on both sides of the magnetic ring, and a second guide component is provided between the magnetic ring and the circular tube main body.

[0009] Furthermore, the first guide assembly includes guide rails symmetrically arranged on the outer side wall of the circular tube body, and sliding sleeves matching with the guide rails are arranged on both sides of the magnetic attraction plate.

[0010] Furthermore, a plurality of first balls are rollingly arranged on the opposite sides of the two sliding sleeves, and the first balls are in contact with the guide rails.

[0011] Furthermore, the second guide assembly includes a sliding block symmetrically arranged on the outer side wall of the magnetic attraction ring, and the inner side wall of the circular tube body is symmetrically provided with a sliding groove matched with the sliding block.

[0012] Furthermore, a plurality of second balls are rollingly arranged on the opposite sides of the two sliding blocks, and the second balls are in contact with the groove wall of the sliding groove.

[0013] Furthermore, a blocking ring is provided between the magnetic sleeve ring and the scraper head.

[0014] Furthermore, the magnetic attraction plate has an arc-shaped structure.

[0015] Furthermore, a connecting rod is provided on the outer side wall of the magnetic attraction plate, and a gripping portion is provided on one end of the connecting rod.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] By utilizing the magnetic force of the magnetic plate and the magnetic ring attracting each other, the scrapers on both sides of the magnetic ring are pressed against the inner wall of the circular tube body, and then the magnetic plate is slid back and forth on the outer wall of the circular tube body, so that the magnetic ring drives the scraper to effectively scrape off the fly ash particles adhered to and deposited on the inner wall of the circular tube body, thereby allowing the flue gas to flow smoothly inside the circular tube body, and there is no need to disassemble the circular tube body for cleaning many times, so as to improve the flue gas treatment efficiency.

[0018] At the same time, by setting up a structure in which the first guide component and the second guide component cooperate with each other, the magnetic plate and the magnetic ring can be effectively guided and limited respectively, so that under the sliding action of the magnetic plate, the magnetic ring can smoothly drive the scraper head to slide back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the smoke ash blocking prevention connection structure for connecting the deacidification tower to the bag filter in the embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the structure of the magnetic suction ring according to an embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the structure of the magnetic attraction plate according to an embodiment of the present application.

[0022] Description of reference numerals:

[0023] 1. Round tube body; 11. Guide rail; 12. Slide groove; 2. Magnetic plate; 21. Slide sleeve; 22. First ball bearing; 23. Connecting rod; 24. Holding part; 3. Magnetic sleeve ring; 31. Sliding block; 32. Second ball bearing; 4. Scraper head; 5. Blocking ring. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-3 This application is described in further detail.

[0025] The present application embodiment discloses a smoke duct anti-blocking ash connection structure for connecting a deacidification tower to a bag filter, referring to Figure 1 and Figure 2 In this embodiment, the smoke duct anti-blocking ash connection structure includes a circular tube body 1, a magnetic plate 2, a first guide assembly, a magnetic collar 3, a scraper 4 and a second guide assembly. The two ends of the circular tube body 1 are respectively fixedly installed between the outlet of the conical tower section of the deacidification tower and the flow flue of the bag filter through fastening assemblies. The fastening assembly is set to facilitate the effective disassembly and assembly of the circular tube body 1, so that the flue gas is effectively discharged from the deacidification tower into the flow flue, and finally the flue gas is uniformly treated by the bag filter.

[0026] The structure of the fastening assembly between the circular tube body 1 and the flue gas flow channel is described in detail below:

[0027] Specifically, refer to Figure 1In this embodiment, the fastening assembly includes a first fastening block, a fastening screw, a second fastening block and a fastening nut. There are two first fastening blocks, which are symmetrically mounted on the two outer side walls of the end of the flow flue away from the bag filter; there are two fastening screws, one end of which is respectively mounted on one side of the two first fastening blocks, and the fastening screws are perpendicular to the first fastening blocks.

[0028] There are two second fastening blocks, which are symmetrically installed on the two outer side walls of one end of the circular tube body 1, and fastening holes are opened on the two second fastening blocks. The fastening holes cooperate with the fastening screws, so that when the circular tube body 1 and the flow flue are connected to each other, the two second fastening blocks respectively fit with the two first fastening blocks correspondingly, so that the fastening screws pass through the second fastening blocks along the fastening holes.

[0029] At the same time, the fastening nut is threadedly connected to the fastening screw, and by twisting the fastening nut into the fastening screw, the fastening nut is pressed against the second fastening block, so that the first fastening block and the second fastening block are fixedly installed together, thereby making one end of the circular tube body 1 firmly installed on one end of the flow flue. Specifically, the fastening assembly between the circular tube body 1 and the deacidification tower also includes a first fastening block, a fastening screw, a second fastening block and a fastening nut. In this way, through the structure in which the first fastening block, the fastening screw, the second fastening block and the fastening nut cooperate with each other, the other end of the circular tube body 1 can also be firmly installed at the outlet of the conical tower section of the deacidification tower.

[0030] In addition, refer to Figure 1 In this embodiment, the magnetic plate 2 is slidably installed on the outer wall of the circular tube body 1. The magnetic plate 2 is located at the top of the circular tube body 1, and the magnetic plate 2 has an arc-shaped structure as a whole. The arc-shaped structure cooperates with the outer side of the circular tube body 1, so that the arc-shaped magnetic plate 2 can better slide and fit on the outer wall of the circular tube body 1.

[0031] At the same time, the first guide component is arranged between the magnetic plate 2 and the circular tube body 1 to effectively guide and limit the magnetic plate 2, so that the magnetic plate 2 can slide more stably and quickly on the outer wall of the circular tube body 1 through the first guide component.

[0032] The magnetic attraction ring 3 is slidably installed on the inner wall of the circular tube body 1. The magnetic attraction ring 3 is annular in structure as a whole. The annular structure fits the inner wall of the circular tube body 1. Both the magnetic attraction ring 3 and the magnetic plate 2 are magnets with good magnetic force, so that the magnetic attraction ring 3 and the magnetic plate 2 can be firmly attracted to each other. In this way, the magnetic attraction ring 3 and the magnetic plate 2 can be tightly clamped on the inner wall of the circular tube body 1 through the magnetic force of mutual attraction between the magnetic attraction ring 3 and the magnetic plate 2.

[0033] Preferably, in this embodiment, the circular tube body 1 is a plastic circular tube, so that the magnetic sleeve ring 3 and the magnetic plate 2 can slide more smoothly inside and outside the plastic circular tube through magnetic force.

[0034] A connecting rod 23 is installed on the side of the magnetic plate 2 away from the circular tube body 1, and a gripping portion 24 is installed on the end of the connecting rod 23 away from the magnetic plate 2; the magnetic plate 2 can be moved more conveniently through the structure in which the connecting rod 23 and the gripping portion 24 cooperate with each other. When the gripping portion 24 is pushed, the magnetic plate 2 outside the circular tube body 1 can be driven to move, and the magnetic ring 3 inside the circular tube body 1 can be driven to move by magnetic force.

[0035] At the same time, refer to Figure 2 In the present embodiment, two scraping heads 4 are provided, and the two scraping heads 4 are respectively installed on the front and rear sides of the magnetic suction ring 3, and the two scraping heads 4 are both ring-shaped structures, respectively abutting against the inner wall of the circular tube body 1; when the magnetic suction ring 3 is driven by the magnetic suction plate 2 to move back and forth, the magnetic suction ring 3 can drive the two scraping heads 4 to slide back and forth, so that the magnetic suction ring 3 drives the scraping heads 4 to effectively scrape off the fly ash particles adhered to and deposited on the inner wall of the circular tube body 1, so that the flue gas can flow smoothly inside the circular tube body 1, and there is no need to disassemble the circular tube body 1 for cleaning many times, so as to improve the flue gas treatment efficiency.

[0036] Preferably, blocking rings 5 ​​are installed between the two scraping heads 4 on both sides of the magnetic suction ring 3. The two blocking rings 5 ​​can effectively block the fly ash particles scraped off by the scraping heads 4, thereby reducing the scraped fly ash particles from being discharged into the inner side of the magnetic suction ring 3 and causing the fly ash particles to accumulate.

[0037] In addition, the second guide component is arranged between the magnetic sleeve 3 and the circular tube body 1 to effectively guide and limit the magnetic sleeve 3, so that the magnetic sleeve 3 can slide on the inner wall of the circular tube body 1 more stably and quickly through the second guide component.

[0038] The structures of the first guide assembly and the second guide assembly are described in detail below:

[0039] Specifically, refer to Figure 1-Figure 3 In this embodiment, the first guide assembly includes a guide rail 11 and a sliding sleeve 21. There are two guide rails 11, which are symmetrically mounted on the outer wall of the circular tube body 1; there are two sliding sleeves 21, which are respectively mounted on both sides of the magnetic attraction plate 2, and the two sliding sleeves 21 cooperate with the two guide rails 11 to effectively guide and limit the magnetic attraction plate 2, so that the magnetic attraction plate 2 can slide smoothly between the two guide rails 11 through the sliding sleeves 21.

[0040] Preferably, a plurality of first balls 22 are rollingly installed on the opposite sides of the two sleeves 21, and the first balls 22 are respectively in contact with the two guide rails 11; by providing the first balls 22, the friction between the sleeves 21 and the guide rails can be reduced, so that the magnetic plate 2 can slide more smoothly on the outer wall of the circular tube body 1.

[0041] At the same time, specifically, in this embodiment, the second guide assembly includes two sliders 31, and the two sliders 31 are symmetrically installed on the outer wall of the magnetic suction ring 3, and the inner wall of the circular tube body 1 is symmetrically provided with slide grooves 12, and the two slide grooves 12 respectively cooperate with the two sliders 31 to effectively guide and limit the magnetic suction ring 3, so that the magnetic suction ring 3 can slide smoothly in the two slide grooves 12 through the sliders 31.

[0042] Preferably, a plurality of second balls 32 are rollingly mounted on the opposite sides of the two sliders 31, and the second balls 32 are respectively in contact with the groove walls of the two slide grooves 12; by providing the second balls 32, the friction between the sliders 31 and the slide grooves 12 can be reduced, so that the magnetic ring 3 can slide more smoothly on the inner wall of the circular tube body 1.

[0043] In addition, when the scraped fly ash particles fall into the two chutes 12, the sliders 31 on both sides of the magnetic suction ring 3 can also effectively discharge most of the fly ash particles that fall into the chutes 12 to the outside of both sides of the chutes 12 when sliding, thereby reducing the accumulation of fly ash particles in the chutes 12 and causing the sliders 31 to be blocked.

[0044] The implementation principle of the flue ash anti-blocking connection structure for connecting a deacidification tower to a bag filter in an embodiment of the present application is as follows: when it is necessary to scrape off the fly ash particles adhered to and deposited on the inner wall of the circular tube body 1, the holding portion 24 is pushed with force, so that the connecting rod 23 drives the magnetic plate 2 to slide along the outer wall of the movable circular tube body 1, and the magnetic ring 3 on the inner side of the circular tube body 1 can be driven to slide by magnetic force, and the magnetic ring 3 drives the two scraping heads 4 to slide back and forth, so that the scraping heads 4 can effectively scrape off the fly ash particles adhered to and deposited on the inner wall of the circular tube body 1, thereby allowing the flue gas to flow smoothly inside the circular tube body 1.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A smoke duct anti-blocking ash connection structure for connecting a deacidification tower to a bag filter, characterized in that: The invention comprises a circular tube body (1), the outer wall of the circular tube body (1) is slidably provided with a magnetic attraction plate (2), a first guide component is provided between the magnetic attraction plate (2) and the circular tube body (1), the inner wall of the circular tube body (1) is slidably provided with a magnetic attraction ring (3) attracted to the magnetic attraction plate (2), both sides of the magnetic attraction ring (3) are provided with scraping heads (4) abutting against the inner wall of the circular tube body (1), and a second guide component is provided between the magnetic attraction ring (3) and the circular tube body (1).

2. The smoke duct anti-ash blocking connection structure for connecting the deacidification tower to the bag filter according to claim 1 is characterized in that: The first guide assembly comprises a guide rail (11) symmetrically arranged on the outer side wall of the circular tube body (1), and sliding sleeves (21) matching with the guide rail (11) are arranged on both sides of the magnetic attraction plate (2).

3. The smoke duct anti-ash blocking connection structure for connecting the deacidification tower to the bag filter according to claim 2 is characterized in that: A plurality of first balls (22) are rollingly arranged on opposite sides of the two sliding sleeves (21), and the first balls (22) are in contact with the guide rail (11).

4. The smoke ash blocking prevention connection structure for connecting a deacidification tower to a bag filter according to claim 1 is characterized in that: The second guide assembly comprises a sliding block (31) symmetrically arranged on the outer side wall of the magnetic attraction ring (3), and the inner side wall of the circular tube body (1) is symmetrically provided with a sliding groove (12) matching the sliding block (31).

5. The smoke duct anti-blocking ash connection structure for connecting the deacidification tower to the bag filter according to claim 4 is characterized in that: A plurality of second balls (32) are rollingly arranged on the opposite sides of the two sliding blocks (31), and the second balls (32) abut against the groove wall of the sliding groove (12).

6. The smoke duct anti-blocking ash connection structure for connecting a deacidification tower to a bag filter according to claim 1 is characterized in that: A blocking ring (5) is provided between the magnetic attraction ring (3) and the scraper head (4).

7. The smoke duct anti-blocking ash connection structure for connecting a deacidification tower to a bag filter according to claim 1 is characterized in that: The magnetic attraction plate (2) is in an arc-shaped structure.

8. The smoke duct anti-blocking ash connection structure for connecting a deacidification tower to a bag filter according to claim 7, characterized in that: The outer side wall of the magnetic attraction plate (2) is provided with a connecting rod (23), and one end of the connecting rod (23) is provided with a gripping portion (24).

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