Zinc powder and zinc smoke cloth bag dust removal device

Abstract

The utility model relates to the technical field of bag-type dust removers, in particular to a zinc powder and zinc smoke bag-type dust removal device which comprises a dust removal box body, a partition plate is arranged in the dust removal box body and divides the dust removal box body into a zinc smoke dust removal area and a zinc powder dust removal area, and a cleaning mechanism is arranged above the zinc smoke dust removal area and the zinc powder dust removal area; the zinc smoke dust removal area comprises a zinc smoke dust removal area shell, a zinc smoke air inlet, a zinc smoke filtering mechanism and a zinc smoke air outlet; the zinc powder dust removal area comprises a zinc powder dust removal area shell, a zinc powder air inlet, a zinc powder filtering mechanism and a zinc powder air outlet; the zinc smoke dust removal area and the zinc powder dust removal area are arranged in the dust removal box through the partition plate, zinc smoke and zinc powder generated by galvanization are filtered and collected at the same time, the two areas operate independently and do not interfere with each other, the installation space is saved, and the dust removal efficiency is also improved. And the cleaning mechanism separates zinc smoke and zinc powder adsorbed on the outer wall of the filter bag, and the zinc smoke and the zinc powder fall into the first ash hopper and the second ash hopper to be collected and recycled, so that the environmental pollution is reduced, and the cost is also saved.

Description

Technical Field

[0001] The present application relates to the field of bag dust collectors, and in particular to a zinc powder and zinc fume bag dust collector. Background Art

[0002] Among the technical methods for anti-corrosion treatment of metal products, hot-dip galvanizing is a common surface treatment technology. The metal surface is immersed in molten zinc liquid by heat treatment process, and a zinc-iron alloy coating is formed by reaction with zinc. In the process of hot-dip galvanizing, inevitable zinc smoke and zinc powder are often produced. These zinc smoke and zinc powder are spread in the air and pollute the environment.

[0003] In order to reduce the air pollution caused by zinc smoke and zinc powder, bag dust collectors are often used to purify the emitted zinc smoke and zinc powder. Bag dust collectors are a dry dust filtering device, which is suitable for capturing fine, dry non-fibrous dust. The filter bags of bag dust collectors are made of textile or non-textile felt, and the dust-containing gas is filtered by the filtering effect of fiber fabric. When the dust-containing gas enters the bag dust collector, the large particles and high specific gravity dust settle due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified.

[0004] In the existing hot-dip galvanizing process, two sets of bag dust collectors are usually set up, one set to collect and filter zinc smoke, and the other set to collect zinc powder; the two sets of bag dust collectors take up a lot of space and are inconvenient to operate during hot-dip galvanizing production and processing. Utility Model Content

[0005] In order to reduce the space occupied by the bag filter, the present application provides a zinc powder and zinc smoke bag filter.

[0006] The present application provides a zinc powder and zinc smoke bag dust removal device, which adopts the following technical solution:

[0007] It comprises a dust removal box, wherein a partition is arranged in the dust removal box, and the partition divides the dust removal box into a zinc fume dust removal area and a zinc powder dust removal area;

[0008] The zinc smoke dust removal area comprises a zinc smoke dust removal area shell, a zinc smoke air inlet, a zinc smoke filtering mechanism and a zinc smoke exhaust port; a first ash hopper is arranged at the bottom of the zinc smoke dust removal area shell, and the first ash hopper is connected to the inside of the zinc smoke dust removal area; the zinc smoke air inlet is arranged at an outer side wall of the zinc smoke dust removal area shell near the bottom, and the zinc smoke air inlet is connected to a zinc smoke air inlet duct, the zinc smoke filtering mechanism is arranged in the zinc smoke dust removal area shell, and the zinc smoke exhaust port is arranged at the top of the zinc smoke dust removal area shell, and is connected to the zinc smoke dust removal area;

[0009] The zinc powder dust removal area includes a zinc powder dust removal area shell, a zinc powder air inlet, a zinc powder filtering mechanism and a zinc powder exhaust port; a second ash hopper is provided at the bottom of the zinc powder dust removal area shell, and the second ash hopper is connected to the inside of the zinc powder dust removal area; and the zinc powder air inlet is connected to a zinc powder air inlet duct, the zinc powder air inlet is opened on the outer side wall of the zinc powder dust removal area shell near the bottom, the zinc powder filtering mechanism is arranged in the zinc powder dust removal area, and the zinc powder exhaust port is arranged at the top of the zinc powder dust removal area shell, and is connected to the zinc powder dust removal area;

[0010] It also includes a cleaning mechanism, which passes through the dust removal box and is located above the zinc smoke filtering mechanism and the zinc powder filtering mechanism.

[0011] By adopting the above technical solution, the zinc powder dust removal area and the zinc fume dust collector are set up through a partition to ensure that the two areas operate independently without interfering with each other;

[0012] The zinc powder inlet absorbs the zinc powder generated by galvanizing into the zinc powder filter mechanism, which filters and collects the zinc powder. The gas at the zinc powder inlet passes through the zinc powder filter mechanism and is discharged from the zinc powder exhaust port. When the zinc powder filter mechanism collects a certain amount of zinc powder, the zinc powder cleaning mechanism separates the zinc powder from the zinc powder filter mechanism and makes it fall into the first ash hopper. The operator recycles the zinc powder collected in the first ash hopper.

[0013] The zinc smoke air inlet absorbs the zinc smoke generated by galvanizing into the zinc smoke filtering mechanism, which filters and collects the zinc smoke. The gas at the zinc smoke air inlet passes through the zinc smoke filtering mechanism and is discharged from the zinc smoke exhaust port. When the zinc smoke filtering mechanism collects a certain amount of zinc smoke, the zinc smoke cleaning mechanism separates the zinc smoke collected by the zinc smoke filtering mechanism and makes it fall into the second ash hopper. The operator recycles the zinc smoke collected by the second ash hopper.

[0014] A bag dust removal device is divided into a zinc powder dust removal area and a zinc fume dust removal area, which can filter and collect the zinc powder and zinc fume produced by galvanizing at the same time, reducing the footprint of the equipment. At the same time, it can also realize the recycling and reuse of zinc powder and zinc fume, reducing the waste of zinc raw materials, and on the other hand, it is convenient to prevent zinc powder and zinc fume from being discharged into the external environment, reducing pollution to the environment.

[0015] In a specific feasible implementation scheme, the zinc smoke filtering mechanism includes a zinc smoke filter bag orifice plate, a zinc smoke filter bag, and a zinc smoke filter bag frame; the zinc smoke filter bag orifice plate is fixedly connected to the inner wall of the zinc smoke dust removal area shell in the horizontal direction, and a plurality of first mounting holes are evenly arranged on the zinc smoke filter bag orifice plate, the zinc smoke filter bag frame is fitted with the inner wall of the zinc smoke filter bag, and the upper end of the zinc smoke filter bag frame is engaged with the zinc smoke filter bag orifice plate, and the bag mouth of the zinc smoke filter bag is clamped between the zinc smoke filter bag orifice plate and the zinc smoke filter bag frame.

[0016] By adopting the above technical scheme, the bag opening of the zinc smoke filter bag is clamped between the zinc smoke filter bag orifice plate and the zinc smoke filter bag frame, thereby enhancing the stability of the zinc smoke filter bag installation. At the same time, the inner wall of the zinc smoke filter bag fits with the zinc smoke filter bag frame, thereby preventing the zinc smoke filter bag from deforming, so that the zinc smoke inhaled through the zinc smoke air inlet can be filtered by the zinc smoke filter bag and firmly adsorbed on the outer wall of the zinc smoke filter bag, thereby improving the filtering effect of the zinc smoke.

[0017] In a specific feasible implementation scheme, the zinc powder filtering mechanism includes a zinc powder filter bag orifice plate, a zinc powder filter bag, and a zinc powder filter bag frame; the zinc powder filter bag orifice plate is fixedly connected to the inner wall of the zinc powder dust removal area shell in the horizontal direction, and a plurality of second mounting holes are evenly arranged on the zinc powder filter bag orifice plate, the zinc powder filter bag frame is fitted with the inner wall of the zinc powder filter bag, and the upper end of the zinc powder filter bag frame is engaged with the zinc powder filter bag orifice plate, and the bag mouth of the zinc powder filter bag is clamped between the zinc powder filter bag orifice plate and the zinc powder filter bag frame.

[0018] By adopting the above technical scheme, the bag opening of the zinc powder filter bag is clamped between the zinc powder filter bag orifice plate and the zinc powder filter bag frame, thereby enhancing the stability of the zinc powder filter bag installation. At the same time, the inner wall of the zinc powder filter bag fits the zinc powder filter bag frame, thereby preventing the zinc powder filter bag from deforming, so that the zinc powder inhaled through the zinc powder air inlet can be filtered by the zinc powder filter bag and firmly adsorbed on the outer wall of the zinc powder filter bag, thereby improving the filtering effect on the zinc powder.

[0019] In a specific possible implementation scheme, the cleaning mechanism includes a high-pressure air pipe, a nozzle and an electromagnetic pulse valve; the high-pressure air pipe passes through the side wall of the dust removal box and the partition, is fixedly connected to the dust removal box, and the input end of the high-pressure air pipe is connected to an external air source; a plurality of the nozzles are evenly distributed along the side wall of the high-pressure air pipe in the length direction, and are connected to the inner cavity of the high-pressure air pipe, and a plurality of the nozzles are directed toward the bag openings of the zinc smoke filter bag and the bag openings of the zinc powder filter bag;

[0020] The electromagnetic pulse valve is fixedly arranged at one end of the high-pressure gas pipe close to the external gas source.

[0021] By adopting the above technical solution and setting up a cleaning structure, after a certain amount of zinc smoke and zinc powder are collected, the control system of the bag filter controls the electromagnetic pulse valve to open, the external air source is connected to the high-pressure air pipe, and the compressed air is transmitted from the high-pressure air pipe to the nozzle, and then discharged through the nozzle to the bag openings of the zinc smoke filter bag and the zinc powder filter bag. The discharged compressed air separates the zinc smoke and zinc powder adsorbed on the outer walls of the zinc smoke filter bag and the zinc powder filter bag, and falls into the first ash hopper and the second ash hopper arranged below, and the operator recycles and reuses the fallen zinc smoke and zinc powder.

[0022] In a specific possible implementation scheme, it further includes two groups of explosion-proof valves, which are respectively installed on the side walls of the zinc fume removal area shell and the zinc powder removal area shell.

[0023] By adopting the above technical solution, the explosion-proof valve bag dust collector is quickly opened to release the pressure when the internal pressure in the zinc fume removal area and the zinc powder removal area exceeds the safety value, thereby preventing accidents caused by excessive pressure and improving the safety of the bag dust collector.

[0024] In a specific possible implementation scheme, it further includes two groups of air volume regulating valves, which are respectively arranged on the side walls of the zinc smoke air inlet duct and the zinc powder air inlet duct.

[0025] By adopting the above technical solution, the air volume regulating valve is arranged to facilitate the control of the air volume of the zinc smoke air inlet duct and the zinc powder air inlet duct, thereby improving the efficiency of absorbing the zinc powder and zinc smoke generated by galvanizing.

[0026] In a specific implementation scheme, the zinc fume exhaust port is connected to a zinc fume exhaust duct, the zinc powder exhaust port is connected to a zinc powder exhaust duct, the zinc fume exhaust duct and the zinc powder exhaust duct are connected to an exhaust main pipe, and the exhaust main pipe is connected to the external environment.

[0027] By adopting the above technical solution, the exhaust main pipe is set to connect the zinc smoke exhaust duct and the zinc powder exhaust duct. The purified air discharged from the zinc smoke exhaust port and the zinc powder exhaust port is collected in the exhaust main pipe and discharged to the external environment together, avoiding the space occupation by multiple pipe discharge and saving installation space.

[0028] In a specific implementation manner, the zinc smoke filter bag is made of polyester coated needle felt.

[0029] By adopting the above technical solution, a zinc smoke filter bag made of polyester coated needle felt is set to filter the zinc smoke generated by galvanizing, thereby preventing the high temperature of the zinc smoke from affecting the filter bag, causing the zinc smoke filter bag to burn and affecting the safety of the device.

[0030] In a specific implementation scheme, the zinc powder filter bag is made of antistatic polyester coated needle felt.

[0031] By adopting the above technical solution and arranging a zinc powder filter bag made of anti-static polyester coated needle felt, on the basis of filtering zinc powder, it not only avoids the influence of high-temperature zinc powder on the zinc powder filter bag, but also prevents the zinc powder from agglomerating and generating static electricity, so that the zinc powder filter bag is burned and damaged, thereby improving the safety of the device.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The zinc fume dust removal area and the zinc powder dust removal area are set in the dust removal box through partitions. The zinc fume and zinc powder generated by galvanizing are filtered and collected at the same time. The two areas operate independently without interfering with each other, saving installation space and improving dust removal efficiency.

[0034] 2. The cleaning mechanism is set to separate the filtered zinc smoke and zinc powder from the filter bag, and drop them into the first ash hopper and the second ash hopper for collection. The collected zinc smoke and zinc powder are recycled and reused, which reduces environmental pollution and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a schematic diagram of the overall structure of a zinc powder and zinc fume bag dust removal device.

[0036] Figure 2 The present invention is a cross-sectional view of a zinc powder and zinc fume bag dust removal device.

[0037] Figure 3 This is an enlarged view of part A of a zinc powder and zinc fume bag dust removal device.

[0038] Description of the drawings: 1. Dust removal box; 11. Zinc smoke dust removal area; 111. Zinc smoke dust removal area shell; 112. Zinc smoke air inlet; 113. Zinc smoke filtering mechanism; 1131. Zinc smoke filter bag orifice plate; 1132. Zinc smoke filter bag; 1133. Zinc smoke filter bag frame; 1134. First mounting hole; 114. Zinc smoke exhaust outlet; 115. Zinc smoke air inlet duct; 116. First ash hopper; 117. Zinc smoke exhaust duct; 12. Zinc powder dust removal area; 121. Zinc powder dust removal area shell; 122. Zinc powder air inlet; 123 , zinc powder filtering mechanism; 1231, zinc powder filter bag orifice plate; 1232, zinc powder filter bag; 1233, zinc powder filter bag frame; 1234, second mounting hole; 124, zinc powder exhaust port; 125, zinc powder air inlet duct; 126, second ash hopper; 127, zinc powder exhaust duct; 13, partition; 14, cleaning mechanism; 141, high-pressure air pipe; 142, nozzle; 143, electromagnetic pulse valve; 15, explosion-proof valve; 16, air volume regulating valve; 17, exhaust main pipe; 18, connecting seat; 19, fixing bolts. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-3 This application is described in further detail.

[0040] The embodiment of the present application discloses a zinc powder and zinc fume bag dust removal device.

[0041] Reference Figure 1 and Figure 2A zinc powder and zinc smoke bag dust removal device: comprising a dust removal box 1, the dust removal box 1 is divided into a zinc smoke dust removal area 11 and a zinc powder dust removal area 12, the zinc smoke dust removal area 11 and the zinc powder dust removal area 12 are separated by a partition 13 vertically arranged in the middle of the dust removal box 1.

[0042] Reference Figure 2 and Figure 3 The zinc smoke dust removal area 11 includes a zinc smoke dust removal area shell 111, a zinc smoke air inlet 112, a zinc smoke air inlet duct 115, a zinc smoke filtering mechanism 113 and a zinc smoke exhaust port 114; an explosion-proof valve 15 is welded on the side wall of the zinc smoke dust removal area shell 111, and the explosion-proof valve 15 is connected to the inside of the zinc smoke dust removal area 11 to adjust the internal pressure of the zinc smoke dust removal area 11, to a certain extent, avoid safety accidents caused by excessive internal pressure in the zinc smoke dust removal area; the zinc smoke air inlet 112 is opened in the zinc smoke dust removal area shell The outer wall of 111 is close to the bottom, one end of the zinc smoke air inlet duct 115 faces the area where zinc smoke is generated, and the other end is connected to the zinc smoke air inlet port 112. The zinc smoke air inlet duct 115 is provided with an air volume regulating valve 16 for controlling the air volume, thereby adjusting the absorption rate of zinc smoke; a first ash hopper 116 is welded and fixed to the bottom of the zinc smoke dust removal area shell 111, and the first ash hopper 116 is connected to the inside of the zinc smoke dust removal area 11, and is used to collect zinc smoke particles dropped from the zinc smoke filtering mechanism 113.

[0043] The zinc smoke filtering mechanism 113 includes a zinc smoke filter bag orifice plate 1131, a zinc smoke filter bag 1132, and a zinc smoke filter bag frame 1133; the zinc smoke filter bag orifice plate 1131 is horizontally arranged in the zinc smoke dust removal area housing 111, and is fixedly connected to the inner wall of the zinc smoke dust removal area housing 111; the zinc smoke filter bag orifice plate 1131 is provided with a plurality of first mounting holes 1134 for placing the zinc smoke filter bag 1132; the zinc smoke filter bag 1132 extends into the first mounting holes 1134; the zinc smoke filter bag frame 1133 extends into the first mounting holes 1134; and the upper end of the zinc smoke filter bag frame 1133 is connected to the zinc smoke filter bag orifice plate 1131. 31 is fixedly connected by means of threaded connection or snap-fitting, and in this embodiment, the zinc smoke filter bag is fixed by snapping the zinc smoke filter bag skeleton 1133 on the zinc smoke filter bag orifice plate 131, the zinc smoke filter bag skeleton 1133 is fitted with the inner wall of the zinc smoke filter bag 1132, and the bag mouth of the zinc smoke filter bag 1132 is clamped between the zinc smoke filter bag orifice plate 1131 and the zinc smoke filter bag skeleton 1133, so that the position of the zinc smoke filter bag 1132 is fixed; at the same time, the zinc smoke filter bag 1132 is set to be made of polyester coated needle felt material, so as to prevent the accumulated zinc smoke from damaging the zinc smoke filter bag 1132 at high temperature and affecting the safety of the device.

[0044] Reference Figure 2 and Figure 3The zinc powder dust removal area 12 includes a zinc powder dust removal area shell 121, a zinc powder air inlet 122, a zinc powder air inlet duct 125, a zinc powder filtering mechanism 123 and a zinc powder exhaust port 124; an explosion-proof valve 15 is welded on the side wall of the zinc powder dust removal area shell 121, and the explosion-proof valve 15 is connected to the inside of the zinc powder dust removal area 12 to adjust the internal pressure of the zinc powder dust removal area 12 to reduce the probability of accidents; the zinc powder air inlet 122 is opened on the outer wall of the zinc powder dust removal area shell 121 Near the bottom, one end of the zinc powder air inlet duct 125 faces the area where zinc powder is produced, and the other end is connected to the zinc powder air inlet port 122. The side wall of the zinc powder air inlet duct 125 is provided with an air volume regulating valve 16 for controlling the air volume, thereby adjusting the absorption rate of the zinc powder; a first ash hopper 116 is welded and fixed to the bottom of the zinc powder dust removal area shell 121, and the first ash hopper 116 is connected to the inside of the zinc powder dust removal area 12, and is used to collect the zinc powder dropped from the zinc powder filtering mechanism 123.

[0045] The zinc powder filtering mechanism 123 includes a zinc powder filter bag orifice plate 1231, a zinc powder filter bag 1232, and a zinc powder filter bag frame 1233; the zinc powder filter bag orifice plate 1231 is horizontally arranged in the zinc powder dust removal area shell 121, and is fixedly connected to the inner wall of the zinc powder dust removal area shell 121, and a plurality of second mounting holes 1234 for placing the zinc powder filter bag 1232 are evenly arranged on the zinc powder filter bag orifice plate 1231, the zinc powder filter bag 1232 extends into the second mounting holes 1234, the zinc powder filter bag frame 1233 extends into the second mounting holes 1234, and the zinc powder filter bag frame 1233 The upper end of 33 is fixedly connected to the zinc powder filter bag orifice plate 1231 by means of threaded connection or slot engagement, the zinc powder filter bag skeleton 1233 is fitted with the inner wall of the zinc powder filter bag 1232, and the bag mouth of the zinc powder filter bag 1232 is clamped between the zinc powder filter bag orifice plate 1231 and the zinc powder filter bag skeleton 1233, thereby fixing the position of the zinc powder filter bag 1232; at the same time, the zinc powder filter bag 1232 is configured to be made of polyester coated needle felt material to prevent the accumulated zinc powder from destroying the zinc powder filter bag 1232 at high temperature, and to avoid the generation of static electricity, which may cause the filter bag to explode and affect the safety of the device.

[0046] Reference Figure 2 and Figure 3 A cleaning mechanism 14 is provided above the zinc smoke filtering mechanism 113 and the zinc powder filtering mechanism 123, and the cleaning mechanism 14 is provided through the dust removal box 1;

[0047] The cleaning mechanism 14 includes a high-pressure air pipe 141, a nozzle 142 and an electromagnetic pulse valve 143; the high-pressure air pipe 141 passes through the side wall of the dust removal box 1 and the partition 13, and is welded and fixed to the dust removal box 1, and the input end of the high-pressure air pipe 141 is connected to an external air source; a plurality of nozzles 142 are evenly distributed along the side wall of the high-pressure air pipe 141 in the length direction, and are connected to the inner cavity of the high-pressure air pipe 141, and a plurality of nozzles 142 are directed toward the bag openings of the zinc smoke filter bag 1132 and the bag openings of the zinc powder filter bag 1232; an electromagnetic pulse valve 143 is fixedly arranged at a section of the high-pressure air pipe 141 close to the external air source. Valve 143 is used to control the opening and closing of the high-pressure air pipe 141; when the accumulated zinc smoke and zinc powder reach a certain amount, the electromagnetic pulse valve 143 opens, the external air source is connected to the high-pressure air pipe 141, and the compressed air is transmitted from the high-pressure air pipe 141 to the nozzle 142, and then discharged through the nozzle 142 to the bag openings of the zinc smoke filter bag 1132 and the bag openings of the zinc powder filter bag 1232. The discharged compressed air separates the zinc smoke and zinc powder adsorbed on the outer walls of the zinc smoke filter bag 1132 and the zinc powder filter bag 1232, and drops them into the first ash hopper 116 and the second ash hopper 126 for collection.

[0048] Reference Figure 2 and Figure 3 The output end of the zinc smoke exhaust port 114 is connected to the input end of the zinc smoke exhaust duct 117, and the output end of the zinc powder exhaust port 124 is connected to the input end of the zinc powder exhaust duct 127. The output ends of the zinc smoke exhaust duct 117 and the zinc powder exhaust duct 127 are respectively connected to the exhaust main pipe 17, and the exhaust main pipe 17 is connected to the external environment; the purified air passes through the zinc smoke exhaust duct 117 and the zinc powder exhaust duct 127, and is collected in the exhaust main pipe 17, and then discharged through the exhaust main pipe 17; the exhaust main pipe 17 connects the zinc smoke exhaust duct 117 with the zinc powder exhaust duct 127, so that the device structure is more compact and reduces space occupancy.

[0049] Preferably, the partition 13 is arranged to be divided into multiple sections, and the multiple sections of the partition 13 are interlocked and spliced ​​with each other. A connecting seat 18 is arranged on the partition 13 and the inner wall of the dust removal box 1. The connecting seat 18 is "L"-shaped, and one end of the connecting seat 18 is tightly attached to the partition 13, and the other end is tightly attached to the inner wall of the dust removal box 1. A fixing bolt 19 is arranged on the connecting seat 13, which passes through the connecting seat 18 and the partition 13 to realize the fixed installation of the partition 13 in the dust removal box 1. Correspondingly, the partition 13 and the zinc smoke filter bag orifice plate 1131 and the zinc powder filter bag orifice plate 1231 are also fixedly connected through the connecting seat 18; when only a single dust point needs to be dust removed, the fixing bolt 19 is removed, the connecting seat 18 is removed, the partition 13 is separated from the dust removal box 1, and the zinc smoke dust removal area 11 in the dust removal box 1 is connected with the zinc powder dust removal area 12 to form a dust removal area, which can improve the dust removal efficiency of a single dust point.

[0050] The implementation principle of the present application is: when galvanizing steel, zinc smoke and zinc powder will be generated in the air. The high-temperature zinc smoke and zinc powder diffuse in the air, causing environmental pollution and waste of zinc raw materials. The dust removal box 1 filters and purifies the dust-containing air, and recovers the generated zinc smoke and zinc powder respectively; the dust removal box 1 is divided into a zinc smoke dust removal area 11 and a zinc powder dust removal area 12.

[0051] The zinc smoke air inlet pipe absorbs the smoke and sucks the smoke gas into the zinc smoke dust removal area 11. Due to the pressure difference in the zinc smoke dust removal area 11, the smoke gas continues to move upward. When moving to the zinc smoke filtering mechanism 113, the air passes through the zinc smoke filter bag 1132, and the zinc smoke is blocked by the zinc smoke filter bag 1132. The blocked zinc smoke gathers on the outer wall of the zinc smoke filter bag 1132. When a certain amount of zinc smoke gathers, the electromagnetic pulse valve 143 opens, and the external air source is connected to the high-pressure air pipe 141. The compressed air is transmitted from the high-pressure air pipe 141 to the nozzle 142, and then discharged through the nozzle 142 to the bag mouth of the zinc smoke filter bag 1132. The discharged compressed air causes the zinc smoke adsorbed on the outer wall of the zinc smoke filter bag 1132 to fall off and be collected by the first ash hopper 116.

[0052] The zinc powder air inlet pipe absorbs dust and sucks the dust gas into the zinc powder dust removal area 12. Due to the pressure difference in the zinc powder dust removal area 12, the dust gas continues to move upward. When moving to the zinc powder filtering mechanism 123, the air passes through the zinc powder filter bag 1232, and the zinc powder is blocked by the zinc powder filter bag 1232. The blocked zinc powder gathers on the outer wall of the zinc powder filter bag 1232. When a certain amount of zinc powder gathers, the electromagnetic pulse valve 143 opens, and the external air source is connected to the high-pressure air pipe 141. The compressed air is transmitted from the high-pressure air pipe 141 to the nozzle 142, and then discharged through the nozzle 142 toward the bag mouth of the zinc powder filter bag 1232. The discharged compressed air causes the zinc powder adsorbed on the outer wall of the zinc powder filter bag 1232 to fall off and be collected by the second ash hopper 126.

[0053] When the pressure in the zinc fume removal area 11 and the zinc powder removal area 12 reaches the warning value, the explosion-proof valve 15 arranged on the side wall of the zinc fume removal area 11 shell and the zinc powder removal area 12 shell opens to release the pressure to avoid accidents caused by excessive pressure.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A zinc powder and zinc smoke bag dust removal device, characterized in that: It comprises a dust removal box (1), wherein a partition (13) is arranged inside the dust removal box (1), and the partition (13) divides the dust removal box (1) into a zinc fume dust removal area (11) and a zinc powder dust removal area (12); The zinc smoke dust removal area (11) comprises a zinc smoke dust removal area shell (111), a zinc smoke air inlet (112), a zinc smoke filtering mechanism (113) and a zinc smoke exhaust port (114); a first ash hopper (116) is arranged at the bottom of the zinc smoke dust removal area shell (111), and the first ash hopper (116) is communicated with the inside of the zinc smoke dust removal area (11); the zinc smoke air inlet (112) is arranged on the outer wall of the zinc smoke dust removal area shell (111) near the bottom, and the zinc smoke air inlet (112) is communicated with a zinc smoke air inlet duct (115); the zinc smoke filtering mechanism (113) is arranged in the zinc smoke dust removal area shell (111), and the zinc smoke exhaust port (114) is arranged at the top of the zinc smoke dust removal area shell (111) and communicated with the zinc smoke dust removal area (11); The zinc powder dust removal area (12) comprises a zinc powder dust removal area shell (121), a zinc powder air inlet (122), a zinc powder filtering mechanism (123) and a zinc powder exhaust port (124); a second ash hopper (126) is arranged at the bottom of the zinc powder dust removal area shell (121), and the second ash hopper (126) is connected to the inside of the zinc powder dust removal area (12); and the zinc powder air inlet (122) is connected to a zinc powder air inlet duct (125), the zinc powder air inlet (122) is arranged on the outer wall of the zinc powder dust removal area shell (121) near the bottom, the zinc powder filtering mechanism (123) is arranged in the zinc powder dust removal area (12), and the zinc powder exhaust port (124) is arranged at the top of the zinc powder dust removal area shell (121) and is connected to the zinc powder dust removal area (12); It also includes a cleaning mechanism (14), wherein the cleaning mechanism (14) passes through the dust removal box (1) and is located above the zinc smoke filtering mechanism (113) and the zinc powder filtering mechanism (123).

2. The zinc powder and zinc smoke bag dust removal device according to claim 1 is characterized in that: The zinc smoke filtering mechanism (113) comprises a zinc smoke filter bag orifice plate (1131), a zinc smoke filter bag (1132), and a zinc smoke filter bag frame (1133); the zinc smoke filter bag orifice plate (1131) is fixedly connected to the inner wall of the zinc smoke dust removal area shell (111) in the horizontal direction, a plurality of first mounting holes (1134) are evenly arranged on the zinc smoke filter bag orifice plate (1131), the zinc smoke filter bag frame (1133) is fitted with the inner wall of the zinc smoke filter bag (1132), and the upper end of the zinc smoke filter bag frame (1133) is engaged with the zinc smoke filter bag orifice plate (1131), and the bag opening of the zinc smoke filter bag (1132) is clamped between the zinc smoke filter bag orifice plate (1131) and the zinc smoke filter bag frame (1133).

3. A zinc powder and zinc fume bag dust removal device according to claim 2, characterized in that: The zinc powder filtering mechanism (123) comprises a zinc powder filter bag orifice plate (1231), a zinc powder filter bag (1232), and a zinc powder filter bag frame (1233); the zinc powder filter bag orifice plate (1231) is fixedly connected to the inner wall of the zinc powder dust removal area shell (121) in the horizontal direction, a plurality of second mounting holes (1234) are evenly arranged on the zinc powder filter bag orifice plate (1231), the zinc powder filter bag frame (1233) is fitted with the inner wall of the zinc powder filter bag (1232), and the upper end of the zinc powder filter bag frame (1233) is engaged with the zinc powder filter bag orifice plate (1231), and the bag opening of the zinc powder filter bag (1232) is clamped between the zinc powder filter bag orifice plate (1231) and the zinc powder filter bag frame (1233).

4. The zinc powder and zinc fume bag dust removal device according to claim 3 is characterized in that: The cleaning mechanism (14) comprises a high-pressure air pipe (141), a nozzle (142) and an electromagnetic pulse valve (143); the high-pressure air pipe (141) penetrates the side wall of the dust removal box (1) and the partition (13), is fixedly connected to the dust removal box (1), and the input end of the high-pressure air pipe (141) is connected to an external air source; a plurality of the nozzles (142) are evenly distributed along the side wall of the high-pressure air pipe (141) in the longitudinal direction, and are connected to the inner cavity of the high-pressure air pipe (141), and the plurality of the nozzles (142) are directed toward the bag openings of the zinc smoke filter bag (1132) and the bag openings of the zinc powder filter bag (1232); The electromagnetic pulse valve (143) is fixedly arranged at a section of the high-pressure gas pipe (141) close to the external gas source.

5. The zinc powder and zinc fume bag dust removal device according to claim 1, characterized in that: It also includes two groups of explosion-proof valves (15), which are respectively installed on the side walls of the zinc fume removal area shell (111) and the zinc powder removal area shell (121).

6. The zinc powder and zinc smoke bag dust removal device according to claim 1, characterized in that: It also includes two groups of air volume regulating valves (16), which are respectively arranged on the side walls of the zinc smoke air inlet duct (115) and the zinc powder air inlet duct (125).

7. The zinc powder and zinc fume bag dust removal device according to claim 1, characterized in that: The zinc fume exhaust port (114) is connected to a zinc fume exhaust duct (117), the zinc powder exhaust port (124) is connected to a zinc powder exhaust duct (127), the zinc fume exhaust duct (117) and the zinc powder exhaust duct (127) are connected to an exhaust main pipe (17), and the exhaust main pipe (17) is connected to the external environment.

8. The zinc powder and zinc fume bag dust removal device according to claim 2, characterized in that: The zinc smoke filter bag (1132) is made of polyester coated needle felt.

9. The zinc powder and zinc fume bag dust removal device according to claim 3, characterized in that: The zinc powder filter bag (1232) is made of anti-static polyester coated needle felt.

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