Boiler flue gas dust removal device

Abstract

The utility model relates to the field of dust removal devices, in particular to a boiler flue gas dust removal device which comprises a dust removal shell, a filtering assembly and a sealing assembly, the filtering assembly used for filtering dust in flue gas is arranged on the inner side of the dust removal shell, and the sealing assembly used for sealing the dust removal shell is arranged above the dust removal shell. Dust removal treatment is carried out through the filtering assembly, in the process, the sealing performance of the dust removal shell is improved through the sealing assembly, the dust removal effect is prevented from being affected by the outside world, and compared with the fact that dust removal devices in the market at present are mostly integrally arranged, the dust removal device is detachable and can be used after being used for a period of time. All the structures are sequentially detached and cleaned, the conditions of blockage and the like of the device are avoided, so that the efficient operation state of the dust removal device is kept, and the detachable dust removal device is regularly cleaned, so that accumulation of dust and particulate matters can be reduced, abrasion and damage to a filter bag or a filter screen are reduced, and the service life of the dust removal device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal device field especially relates to boiler flue gas dust removal device. BACKGROUND

[0002] The boiler is the mechanical equipment that utilizes the burning heat energy or other heat energy of fuel to heat feed water (or other working medium) to produce the steam, hot water (or other working medium, or other working medium steam) of stipulated parameter and quality, specifically, the working principle of boiler is that fuel burns in the combustion chamber, produces high-temperature flue gas, these flue gas passes through the smoke pipe or water pipe, makes water heated, and then generates steam or hot water, and the boiler flue gas is the gaseous mixture produced in the combustion process of boiler, these gases are mainly composed of gaseous material and solid material, and the solid material is mainly composed of smoke and dust, and the smoke is mainly black smoke, and the dust is usually the fly ash and part of unburned carbon particles carried in the flue gas, so the boiler flue gas usually needs to be treated such as dust removal before being discharged to reduce the pollution to the environment, and the dust removal equipment can effectively remove the dust in the flue gas.

[0003] The existing dust removal device may be blocked in the internal structure due to the sticky dust or high humidity gas in the flue gas in the use process, so that the particle capture capacity of the dust removal device is greatly reduced, the dust removal efficiency is significantly reduced, the particle emission concentration in the flue gas is increased, the environment is further polluted, and the operation efficiency of the boiler is further reduced.

[0004] Therefore, in view of the above-mentioned problems that the existing dust removal device may be blocked in the internal structure due to the sticky dust or high humidity gas in the flue gas in the use process, the dust removal efficiency is significantly reduced, and the operation efficiency of the boiler is reduced, the boiler flue gas dust removal device can be designed, and the dust removal device can be detachable, so that the internal structure of the device can be cleaned, and the blockage and other conditions can be avoided. UTILITY MODEL CONTENTS

[0005] In order to overcome the problems that the existing dust removal device may be blocked in the internal structure due to the sticky dust or high humidity gas in the flue gas in the use process, the dust removal efficiency is significantly reduced, and the operation efficiency of the boiler is reduced.

[0006] The utility model discloses a technical scheme for a boiler flue gas dust removal device, which comprises a dust removal shell, a filter assembly and a sealing assembly. The dust removal shell is internally provided with the filter assembly for filtering dust in flue gas. The upper part of the dust removal shell is provided with the sealing assembly for sealing the dust removal shell. A plurality of plug-in holes are formed around the lower edge of the dust removal shell. A dust collecting hopper is arranged below the dust removal shell. A plug-in column is installed at the upper end edge of the dust collecting hopper corresponding to the plug-in hole. The filter assembly comprises a large-hole dust removal net, a small-hole dust removal net, a filter membrane cloth and an arc-shaped clamping block. The arc-shaped clamping block drives the large-hole dust removal net, the small-hole dust removal net and the filter membrane cloth to be positioned and connected with the dust removal shell along the arc-shaped clamping groove. The sealing assembly comprises a circular cover plate, an annular sealing ring, a handle, an air outlet pipe, a high-pressure centrifugal fan and a motor. The annular sealing ring is installed at the lower end edge of the circular cover plate. Two handles are horizontally installed at the upper end of the circular cover plate.

[0007] Preferably, the flue gas enters the dust removal shell and is subjected to dust removal treatment by the filter assembly. In this process, the sealing assembly increases the sealing performance of the dust removal shell, thereby avoiding external influences on the dust removal effect. Unlike most dust removal devices on the market, which are integrally provided, the dust removal device is detachable. After being used for a period of time, each structure can be sequentially disassembled and cleaned to avoid blockage and other situations of the device, remove accumulated dust and particulate matter, thereby maintaining the efficient operation of the dust removal device. In addition, regular cleaning of the detachable dust removal device can reduce the accumulation of dust and particulate matter, reduce the wear and damage of the filter bag or filter screen, thereby prolonging the service life of the dust removal device.

[0008] Preferably, an air inlet pipe is installed on one side of the outer part of the dust removal shell. A plurality of arc-shaped clamping grooves are formed around the inner wall of the dust removal shell.

[0009] Preferably, a discharge pipe is installed at the lower end of the dust collecting hopper. A circular sealing cover is externally provided at the lower end of the discharge pipe.

[0010] Preferably, four support columns are installed around the outer part of the dust collecting hopper. A circular mounting plate is installed at the lower end of the support column. Four mounting holes are formed around the upper edge of the circular mounting plate.

[0011] Preferably, an arc-shaped clamping block is installed on the outer part of the large-hole dust removal net corresponding to the arc-shaped clamping groove. A small-hole dust removal net is fixedly connected to the arc-shaped clamping block above the large-hole dust removal net. A filter membrane cloth is fixedly connected to the arc-shaped clamping block above the small-hole dust removal net.

[0012] Preferably, an air outlet pipe is fixedly connected to the circular cover plate between the two handles. A high-pressure centrifugal fan is installed at the end of the air outlet pipe away from the circular cover plate.

[0013] Preferably, the motor is installed on the side of the high-pressure centrifugal fan away from the outlet pipe, and an air outlet is opened on the top of the high-pressure centrifugal fan.

[0014] The beneficial effects of this utility model are:

[0015] 1. Flue gas enters the dust collector housing and is treated by the filter components. During this process, the sealing components increase the sealing of the dust collector housing to prevent external factors from affecting the dust collection effect. Unlike most dust collectors on the market that are integrated, this dust collector is detachable. After a period of use, each structure can be disassembled and cleaned to prevent clogging and remove accumulated dust and particulate matter, thus maintaining the efficient operation of the dust collector. Regular cleaning of the detachable dust collector can also reduce the accumulation of dust and particulate matter, reduce wear and damage to the filter bags or filter screens, and extend the service life of the dust collector. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the flue gas dust removal device of this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the dust removal shell structure of the flue gas dust removal device of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the dust collection hopper structure of the flue gas dust removal device of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the filter membrane structure of the flue gas dust removal device of this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the high-pressure centrifugal ventilation mechanism of the flue gas dust removal device of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Dust collector housing; 101. Air inlet pipe; 102. Arc-shaped snap-fit ​​groove; 103. Insertion hole; 104. Insertion post; 105. Dust collection hopper; 106. Discharge pipe; 107. Circular sealing cover; 108. Support column; 109. Circular mounting plate; 110. Mounting hole; 201. Large-pore dust collector screen; 202. Small-pore dust collector screen; 203. Filter membrane cloth; 204. Arc-shaped snap-fit ​​block; 301. Circular cover plate; 302. Annular sealing ring; 303. Handle; 304. Air outlet pipe; 305. High-pressure centrifugal fan; 306. Motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5The utility model provides a kind of embodiment: boiler flue gas dust removal device, including dust removal shell body 1, filter assembly and sealing assembly, filter assembly for filtering dust in flue gas is equipped in dust removal shell body 1 inside, sealing assembly for sealing dust removal shell body 1 is equipped on dust removal shell body 1 top, multiple groups of insertion holes 103 are opened around the edge of dust removal shell body 1 lower side, dust hopper 105 is equipped in dust removal shell body 1 lower side, and insertion column 104 is installed with insertion hole 103 corresponding on the edge of dust hopper 105 upper end, filter assembly includes large hole dust removal net 201, small hole dust removal net 202, filter membrane cloth 203 and arc clamping block 204, arc clamping block 204 drives large hole dust removal net 201, small hole dust removal net 202 and filter membrane cloth 203 are positioned and connected along arc clamping groove 102 with dust removal shell body 1, sealing assembly includes circular cover plate 301, annular sealing ring 302, handle 303, gas outlet pipe 304, high-pressure centrifugal fan 305 and motor 306, annular sealing ring 302 is installed on the edge of circular cover plate 301 lower end, and two groups of handle 303 are installed on the upper end of circular cover plate 301 transversely.

[0024] Please refer to Figures 2-3 In the embodiment, air inlet pipe 101 is installed on the outside of dust removal shell body 1, and multiple groups of arc clamping grooves 102 are opened around the inner wall of dust removal shell body 1, first, boiler pipeline is connected with air inlet pipe 101, then flue gas enters dust removal shell body 1 through air inlet pipe 101, to avoid flue gas scattering, dust hopper 105 lower end is installed with discharge pipe 106, and discharge pipe 106 lower end is externally sleeved with circular sealing cover 107, when dust removal device is used for a period of time, circular sealing cover 107 is loosened, so that the dust and particles remaining after filtration are dropped out through discharge pipe 106, to avoid long-term accumulation in dust removal shell body 1, affecting dust removal efficiency, four groups of support columns 108 are installed around the outside of dust hopper 105, support column 108 lower end is installed with circular mounting plate 109, four groups of mounting holes 110 are opened around the upper edge of circular mounting plate 109, first, dust removal shell body 1 is moved to the position close to boiler, then bolt is passed through mounting hole 110, so that circular mounting plate 109 is fixedly connected with the position close to boiler, in the operation process of dust removal shell body 1, support column 108 improves its stability.

[0025] Please refer to Figure 4In the embodiment, the arc-shaped clamping block 204 is arranged outside the large-hole dust removal net 201 corresponding to the arc-shaped clamping groove 102, the small-hole dust removal net 202 is arranged above the large-hole dust removal net 201 and fixedly connected with the arc-shaped clamping block 204, and the filter membrane cloth 203 is arranged above the small-hole dust removal net 202 and fixedly connected with the arc-shaped clamping block 204. When the flue gas enters the dust removal shell 1, the large-hole dust removal net 201 is used for preliminary dust removal to remove relatively large dust and particles contained in the flue gas, the small-hole dust removal net 202 is used for further dust removal to remove relatively small dust and particles contained in the flue gas, and the filter membrane cloth 203 is used for final dust removal to remove tiny dust and particles contained in the flue gas. After the device is used for a period of time, the large-hole dust removal net 201, the small-hole dust removal net 202 and the filter membrane cloth 203 are taken out and cleaned in sequence. After cleaning, the arc-shaped clamping block 204 drives the large-hole dust removal net 201, the small-hole dust removal net 202 and the filter membrane cloth 203 to be connected with the dust removal shell 1 along the arc-shaped clamping groove 102.

[0026] Please refer to Figure 5 In the embodiment, the air outlet pipe 304 is arranged between the two groups of handles 303 and fixedly connected with the circular cover plate 301. The high-pressure centrifugal ventilator 305 is arranged at the end of the air outlet pipe 304 away from the circular cover plate 301 and fixedly connected with the circular cover plate 301. After the device is used for a period of time, the handle 303 is lifted to open the circular cover plate 301, and the inside of the device is cleaned. After cleaning, the handle 303 is lifted again, and the circular cover plate 301 is connected with the dust removal shell 1 along the inner wall of the dust removal shell 1 and is attached to the dust removal shell 1, so that the device can be used again. The motor 306 is arranged on the side of the high-pressure centrifugal ventilator 305 away from the air outlet pipe 304. The air outlet is arranged above the high-pressure centrifugal ventilator 305. After the boiler pipeline is connected with the air inlet pipe, the high-pressure centrifugal ventilator 305 is driven by the motor 306 to operate. The flue gas enters the dust removal shell 1 for dust removal, then enters the air outlet pipe 304, and is discharged through the air outlet of the high-pressure centrifugal ventilator 305.

[0027] When working, the dust removal shell 1 is first moved to a position close to the boiler. Then the bolt is passed through the mounting hole 110 to fixedly connect the circular mounting plate 109 with the position close to the boiler. Then the boiler pipeline is connected with the air inlet pipe 101. The high-pressure centrifugal ventilator 305 is driven by the motor 306 to operate. Finally, the flue gas enters the dust removal shell 1 through the air inlet pipe 101.

[0028] When the flue gas enters the dust removal shell 1, it first passes through the large hole dust removal net 201 for preliminary dust removal to remove larger dust and particles contained in the flue gas, then passes through the small hole dust removal net 202 for further dust removal to remove smaller dust and particles contained in the flue gas, then passes through the filter membrane cloth 203 for final dust removal to remove tiny dust and particles contained in the flue gas, and finally enters the gas outlet pipe 304 and is discharged through the air outlet on the high-pressure centrifugal fan 305;

[0029] When the device is used for a period of time, the circular sealing cover 107 is loosened, so that the dust and particles remaining after filtration fall out through the discharge pipe 106, avoiding long-term accumulation in the dust removal shell 1. If there is still a fear that the dust and particles on the inner wall of the dust collection hopper 105 will not fall completely, the dust removal shell 1 can be lifted to clean the inner wall of the dust collection hopper 105. Then the dust removal shell 1 is lifted, the plug-in column 104 is positioned and connected along the plug-in hole 103, and the dust collection hopper 105 and the dust removal shell 1 are assembled for use.

[0030] When the dust collection hopper 105 is cleaned, the handle 303 is lifted, the circular cover plate 301 is opened, and the large hole dust removal net 201, the small hole dust removal net 202 and the filter membrane cloth 203 are taken out for cleaning in turn. When the cleaning is completed, the arc-shaped clamping block 204 drives the large hole dust removal net 201, the small hole dust removal net 202 and the filter membrane cloth 203 to be positioned and connected along the arc-shaped clamping groove 102 and the dust removal shell 1. Then the handle 303 is lifted again, and the circular cover plate 301 is connected with the dust removal shell 1 along the inner wall of the dust removal shell 1, so that it can be used again.

[0031] Through the above steps, the flue gas enters the dust removal shell 1 and is treated by the filter assembly. In this process, the sealing assembly increases the sealing of the dust removal shell 1 to avoid external influences on the dust removal effect. Compared with the current market dust removal devices which are mostly integrated, this dust removal device is detachable. After being used for a period of time, each structure can be disassembled in turn for cleaning to avoid blockage and other situations of the device, remove accumulated dust and particles, and maintain the efficient operation of the dust removal device. Regular cleaning of the detachable dust removal device can reduce the accumulation of dust and particles and reduce the wear and damage of the filter bag or filter screen, thereby prolonging the service life of the dust removal device. The existing dust removal device may be blocked by sticky dust or high-humidity gas in the flue gas during use, which may cause the internal structure of the dust removal device to be blocked, resulting in a significant reduction in dust removal efficiency and a reduction in the operating efficiency of the boiler.

Claims

1. A boiler flue gas dedusting device, comprising a dedusting shell (1); characterized in that: The filter assembly and the sealing assembly are further included, the filter assembly for filtering dust in flue gas is arranged on the inner side of the dust removal shell (1), the sealing assembly for sealing the dust removal shell (1) is arranged above the dust removal shell (1), a plurality of plug-in holes (103) are arranged around the lower edge of the dust removal shell (1), the dust collection hopper (105) is arranged below the dust removal shell (1), the plug-in column (104) is arranged on the upper end edge of the dust collection hopper (105) and corresponds to the plug-in hole (103), the filter assembly includes the large-hole dust removal net (201), the small-hole dust removal net (202), the filter membrane cloth (203) and the arc-shaped clamping block (204), the arc-shaped clamping block (204) drives the large-hole dust removal net (201), the small-hole dust removal net (202) and the filter membrane cloth (203) to be positioned and connected with the dust removal shell (1) along the arc-shaped clamping groove (102), and the sealing assembly includes the circular cover plate (301), the annular sealing ring (302), the handle (303), the air outlet pipe (304), the high-pressure centrifugal fan (305) and the motor (306), the annular sealing ring (302) is arranged on the lower end edge of the circular cover plate (301), and two groups of handles (303) are transversely arranged on the upper end of the circular cover plate (301).

2. The boiler flue gas dedusting device according to claim 1, characterized in that: The air inlet pipe (101) is arranged on one side of the outer side of the dust removal shell (1), and a plurality of arc-shaped clamping grooves (102) are arranged around the inner wall of the dust removal shell (1).

3. The boiler flue gas dedusting device according to claim 2, characterized in that: The discharge pipe (106) is arranged at the lower end of the dust collection hopper (105), and the circular sealing cover (107) is arranged outside the lower end of the discharge pipe (106).

4. The boiler flue gas dedusting device according to claim 3, characterized in that: Four groups of support columns (108) are arranged around the outer side of the dust collection hopper (105), the circular mounting plate (109) is arranged at the lower end of the support column (108), and four groups of mounting holes (110) are arranged around the upper edge of the circular mounting plate (109).

5. The boiler flue gas dedusting device according to claim 2, characterized in that: The arc-shaped clamping block (204) is arranged outside the large-hole dust removal net (201) and corresponds to the arc-shaped clamping groove (102), the small-hole dust removal net (202) is arranged above the large-hole dust removal net (201) and is fixedly connected with the arc-shaped clamping block (204), and the filter membrane cloth (203) is arranged above the small-hole dust removal net (202) and is fixedly connected with the arc-shaped clamping block (204).

6. The boiler flue gas dedusting device according to claim 1, characterized in that: The air outlet pipe (304) is arranged between the two groups of handles (303) and is fixedly connected with the circular cover plate (301), and the high-pressure centrifugal fan (305) is arranged at the end of the air outlet pipe (304) away from the circular cover plate (301) and is fixedly connected with the circular cover plate (301).

7. The boiler flue gas dedusting device according to claim 1, characterized in that: The motor (306) is arranged on the side of the high-pressure centrifugal fan (305) away from the air outlet pipe (304), and the air outlet is arranged above the high-pressure centrifugal fan (305).

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