An efficient bag filter with low heat loss

Abstract

The present invention relates to the technical field of bag dust collectors, and specifically discloses a high-efficiency, low-heat-loss bag dust collector, comprising a dust collector body, and also comprising: a detection component, wherein the detection component is arranged on one side of the dust collector body, and the detection component detects the gas pressure difference on both sides of the bag according to the deflection angle. The present invention can convert the gas pressure difference on both sides of the bag into the deflection angle of the pressure rod for detection through the detection component, and the trigger component can automatically control the cleaning component to clean the dust on the surface of the bag according to the deflection angle of the pressure rod detected by the detection component. When the deflection angle of the pressure rod reaches a limit value, the trigger component can also automatically adjust the trigger limit value of the detection component according to the humidity of the dust-laden gas. Through the control component, the cleaning force of the cleaning component can be adjusted according to the humidity of the dust-laden gas, thereby improving the dust stripping effect, thereby improving the cleaning effect of the bag and improving the subsequent filtration efficiency of the bag.

Description

Technical Field

[0001] The present invention relates to the technical field of bag dust collectors, and in particular to a bag dust collector with high efficiency and low heat loss. Background Art

[0002] Bag dust collector is a common dust removal equipment in industrial production process and is widely used in industrial waste gas treatment. The dust-laden gas enters the dust collector box through the air inlet, passes through the bag, and the dust in it is filtered by the bag and falls into the ash hopper for collection. The gas after filtering is discharged from the outlet through the clean air chamber of the bag dust collector. During dust cleaning, the pulse controller controls the compressed air to be released instantly through the blowpipe, causing the filter bag to vibrate at a high frequency, peeling off the dust on the surface of the bag. The peeled dust falls into the ash hopper and is discharged regularly through the ash discharge valve.

[0003] When the dust-laden gas is processed by a bag dust collector, the humidity of the dust-laden gas may vary. If the humidity of the dust-laden gas is high, high-humidity dust will easily form sticky lumps on the surface of the bag, causing the pores of the bag to be clogged, affecting the filtration efficiency of the bag. In addition, the wet dust layer has a strong bonding force with the bag, making it difficult to peel off the dust on the surface of the bag during cleaning, which affects the cleaning effect and further affects the subsequent filtration effect of the bag. For this reason, we propose a bag dust collector with high efficiency and low heat loss. Summary of the Invention

[0004] The object of the present invention is to provide a high-efficiency, low-heat-loss bag dust collector to solve the problem raised in the above-mentioned background technology that the humidity of the dust-laden gas may be different when the dust-laden gas is treated by the bag dust collector. If the humidity of the dust-laden gas is high, high-humidity dust will easily form sticky lumps on the surface of the bag, causing the pores of the bag to be clogged, affecting the filtering efficiency of the bag, and the wet dust layer has a strong bonding force with the bag, making it difficult to peel off the dust on the surface of the bag during cleaning, thereby affecting the cleaning effect, and further affecting the subsequent filtering effect of the bag.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-efficiency, low-heat-loss bag dust collector, comprising: a dust collector body, an exhaust pipe provided at the air inlet end on the lower side of the dust collector body, an exhaust pipe provided at the air outlet end on the upper side of the dust collector body, and a bag provided in the dust collector body;

[0006] It also includes: a detection component, which is arranged on one side of the dust collector body and detects the gas pressure difference on both sides of the bag according to the deflection angle;

[0007] The dust cleaning component is set on one side of the bag and is used to clean the dust on the surface of the bag;

[0008] The trigger component is arranged on the detection component. The trigger component automatically triggers the dust cleaning component to clean the bag according to the deflection angle detected by the detection component, and automatically adjusts the trigger limit value of the detection component according to the humidity of the dust-laden gas;

[0009] The regulating component is arranged on one side of the dust collector body, and the regulating component automatically adjusts the cleaning force of the cleaning component according to the humidity of the dust-laden gas.

[0010] Among them, the detection component includes a mounting plate arranged on the inner side of the dust collector body, the cloth bag is arranged on the mounting plate, a bracket fixed to the inner side of the dust collector body is arranged on the lower side of the mounting plate, and a limit block fixed to the dust collector body is symmetrically arranged on the upper side of the mounting plate. A first detection part and a second detection part are arranged on one side of the dust collector body, and the first detection part and the second detection part have the same structure.

[0011] Among them, the first detection part includes a connecting part fixed to the dust collector body, a moving block is slidably arranged in the connecting part, a first spring fixed to the connecting part is fixed on one side of the moving block, and a bellows fixed to the connecting part is fixed on the other side of the moving block. The connecting part of the first detection part is connected to the dust collector body on the upper side of the mounting plate, and the connecting part of the second detection part is connected to the dust collector body on the lower side of the mounting plate.

[0012] Among them, a connecting rod is fixed on one side of the moving block of the first detection part, and the connecting rod moves through one side of the connecting part of the first detection part; an L-shaped rod is fixed on one side of the moving block of the second detection part, and the L-shaped rod moves through one side of the connecting part of the second detection part; a sliding rod is rotatably provided at one end of the connecting rod and the L-shaped rod, a sleeve rod is slidably provided between the two sliding rods, a connecting shaft is rotatably provided in the middle of the sleeve rod, a first mounting part is fixed on the lower side of the connecting shaft, and the telescopic end of the first telescopic part is symmetrically fixed on the lower side of the first mounting part, a fixing plate is fixed at the fixed end of the first telescopic part, the fixing plate is fixed to the connecting part of the first detection part, a pressure rod is fixed on one side of the sleeve rod, and a protective shell fixed to the dust collector body is provided on the outside of the first mounting part.

[0013] Among them, the trigger component includes a first movable member slidingly set with the first mounting member, an arc groove adapted to the first movable member is opened through the first mounting member, the first movable member is slidably set along the arc groove, a first switch is installed on one side of the first movable member, and a first gear member is fixedly provided on one side of the first movable member to rotate with the connecting shaft.

[0014] Among them, a first adjustment control is provided on the upper side of the first mounting member, and the first adjustment control includes a gear rod member slidably arranged with the first mounting member, a limiting groove adapted to the gear rod member is opened on the first mounting member, and the gear rod member is slidably arranged along the limiting groove, and the gear rod member of the first adjustment control is meshed with one side of the first gear member, a first electromagnetic block is fixed on the upper side of the first mounting member, and a first magnetic block is fixed on the side of the gear rod member close to the first electromagnetic block, the first electromagnetic block and the first magnetic block repel each other, a second spring is fixed on one side of the gear rod member, and a fixed block is fixed at one end of the second spring, and the fixed block of the first adjustment control is fixed to the first mounting member.

[0015] Among them, the dust cleaning component includes an air storage tank fixed to the dust collector body, and a blowing pipe is fixedly connected to the upper side of the air storage tank, and a pulse valve is provided on the blowing pipe.

[0016] Among them, the control component includes a mounting shell fixed to the air inlet of the dust collector body, filter screens are fixed on both sides of the mounting shell, a humidity sensor is arranged in the mounting shell, a connecting pipe fixedly connected to the gas tank is fixed on the upper side of the mounting shell, a shell is fixed on one side of the dust collector body, a sliding rheostat is fixed in the shell, a connecting block is fixed on the sliding vane of the sliding rheostat, a second magnetic block is fixed on one side of the connecting block, a second electromagnetic block that repels the second magnetic block is fixed on the inside of the shell, a third spring fixed to the shell is fixed on the other side of the connecting block, a second switch is arranged on the upper side of the connecting block, and an electric heating sleeve is arranged on the outside of the blowing pipe.

[0017] It also includes an auxiliary component, which is arranged on one side of the trigger component. The auxiliary component further assists the control component in adjusting the cleaning strength of the cleaning component according to the amount of dust attached to the surface of the bag, and automatically reminds you to replace the bag based on the gas pressure difference on both sides of the bag initially detected by the detection component.

[0018] Among them, the auxiliary component includes a second mounting part fixed on the upper side of the connecting shaft, the telescopic end of the second telescopic part is symmetrically fixed on the lower side of the second mounting part, the fixed end of the second telescopic part is fixed to the fixed plate, a second moving part is slidingly arranged on the second mounting part, a third switch is arranged on one side of the second moving part, a second gear part rotatably arranged with the connecting shaft is fixed on the upper side of the second moving part, a second adjustment control is arranged on the upper side of the second mounting part, the second adjustment control has the same structure as the first adjustment control, the gear rod part of the second adjustment control is meshed with one side of the second gear part, and a pressure sensor is arranged on the upper side of the bracket.

[0019] The present invention has at least the following beneficial effects:

[0020] The present invention can convert the gas pressure difference on both sides of the bag into the deflection angle of the pressure rod for detection through the detection component. The trigger component can automatically control the dust cleaning component to clean the dust on the surface of the bag according to the deflection angle of the pressure rod detected by the detection component. When the deflection angle of the pressure rod reaches a limit value, the trigger component can also automatically adjust the trigger limit value of the detection component according to the humidity of the dust-laden gas. That is, when the humidity of the dust-laden gas is high, the limit value is correspondingly lowered to make the deflection angle of the pressure rod of the detection component relatively small, which can trigger the dust cleaning component to clean the bag, that is, correspondingly reduce the trigger of the gas pressure difference on both sides of the bag. Limit value, shorten the cleaning cycle, clean the dust on the surface of the bag in time, improve the bag filtering effect, through the control component, the cleaning force of the dust cleaning component can be adjusted according to the humidity of the dust-laden gas, when the humidity of the dust-laden gas is high, the compressed air spraying force can be increased accordingly during cleaning to improve the cleaning effect of the bag, and the heating degree of the compressed air can be adjusted according to the humidity of the dust-laden gas, so as to heat the wet dust adhered to the surface of the bag after the compressed air is sprayed, thereby improving the dust stripping effect, thereby improving the cleaning effect of the bag and improving the subsequent filtration efficiency of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the dust collector body of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the dust collector body of the present invention from another perspective;

[0024] Figure 4 It is a schematic structural diagram of the cross-section of the dust collector body and the protective shell of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the explosion of the mounting plate and the bracket of the present invention;

[0026] Figure 6 This is a schematic structural diagram of a cross-sectional connection between a connecting piece and a bellows according to the present invention;

[0027] Figure 7 This is a schematic structural diagram of the sleeve rod connection of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the pressure rod connection of the present invention;

[0029] Figure 9 Schematic diagram of the structure of the first adjustment control unit of the present invention;

[0030] Figure 10 This is a schematic structural diagram of the connection between the first mounting member and the lower side of the second mounting member of the present invention;

[0031] Figure 11 This is a schematic structural diagram of a cross-section of the installation shell of the present invention;

[0032] Figure 12 It is a schematic structural diagram of a cross-section of the housing of the present invention;

[0033] Figure 13 This is a schematic structural diagram of the dust collector body of the present invention when viewed from the front;

[0034] Figure 14 For the present invention Figure 13 A schematic diagram of the structure enlarged in the middle;

[0035] Figure 15 This is a schematic diagram of the structure of the dust collector body from a top view of the present invention;

[0036] Figure 16 For the present invention Figure 15 Schematic diagram of the structure enlarged at point B.

[0037] In the figure: 11, dust collector body; 12, exhaust pipe; 13, exhaust pipe; 14, cloth bag; 2, detection assembly; 21, mounting plate; 22, bracket; 23, limit block; 24, first detection member; 241, connecting member; 242, moving block; 243, bellows; 244, first spring; 25, second detection member; 26, connecting rod; 27, L-shaped rod; 28, sliding rod; 29, sleeve rod; 210, connecting shaft; 211, protective shell; 212, first mounting member; 213, first telescopic member; 214, fixing plate; 215, pressure rod; 3, trigger assembly; 31, first moving member; 32, first switch; 33, first gear member; 34, first adjustment control; 341, gear member; 342, limit slot; 343, first electromagnetic block; 344 , first magnetic block; 345, second spring; 346, fixed block; 35, arc groove; 4, dust cleaning component; 41, gas tank; 42, blow pipe; 43, pulse valve; 5, control component; 51, mounting shell; 52, filter; 53, humidity sensor; 54, connecting pipe; 55, shell; 56, sliding rheostat; 57, connecting block; 58, second electromagnetic block; 59, second magnetic block; 510, second switch; 511, third spring; 512, electric heating jacket; 6, auxiliary component; 61, second mounting part; 62, second telescopic part; 63, second moving part; 64, second gear part; 65, second control unit; 66, third switch; 67, pressure sensor; 71, high-density aluminum silicate insulation layer; 72, air layer; 73, high-density rock wool insulation layer. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1

[0040] See also Figures 1 to 12 The present invention provides a technical solution: a bag dust collector with high efficiency and low heat loss, comprising: a dust collector body 11, an exhaust pipe 12 is provided at the air inlet end of the lower side of the dust collector body 11, an exhaust pipe 13 is provided at the air outlet end of the upper side of the dust collector body 11, and a bag 14 is provided in the dust collector body 11;

[0041] The dust collector further includes a detection component 2, which is arranged on one side of the dust collector body 11 and detects the gas pressure difference on both sides of the bag 14 according to the deflection angle;

[0042] The dust cleaning component 4 is arranged on one side of the bag 14 and is used to clean the dust on the surface of the bag 14;

[0043] The trigger component 3 is arranged on the detection component 2. The trigger component 3 automatically triggers the dust cleaning component 4 to clean the bag 14 according to the deflection angle detected by the detection component 2, and automatically adjusts the trigger limit value of the detection component 2 according to the humidity of the dust-laden gas;

[0044] The regulating component 5 is arranged on one side of the dust collector body 11. The regulating component 5 automatically adjusts the cleaning force of the dust cleaning component 4 according to the humidity of the dust-laden gas.

[0045] During use, the dust-laden gas enters the dust collector body 11 through the exhaust pipe 12 and the air inlet of the dust collector body 11, and the dust-laden gas is filtered through the cloth bag 14, and the filtered gas enters the exhaust pipe 13 through the air outlet of the dust collector body 11 for discharge. The gas pressure difference on both sides of the cloth bag 14 can be converted into the deflection angle of the pressure rod 215 for detection through the detection component 2. The trigger component 3 can automatically control the cleaning component 4 to clean the dust on the surface of the cloth bag 14 according to the deflection angle of the pressure rod 215 detected by the detection component 2. When the deflection angle of the pressure rod 215 reaches a limit value, the trigger component 3 can also automatically adjust the trigger limit value of the detection component 2 according to the humidity of the dust-laden gas. That is, when the humidity of the dust-laden gas is high, the limit value is correspondingly lowered to make the pressure rod 215 of the detection component 2 When the deflection angle of 15 is relatively small, the cleaning component 4 can be triggered to clean the cloth bag 14, that is, the trigger limit value of the gas pressure difference on both sides of the cloth bag 14 is reduced accordingly, the cleaning cycle is shortened, the dust on the surface of the cloth bag 14 is cleaned in time, and the filtering effect of the cloth bag 14 is improved. The cleaning force of the cleaning component 4 can be adjusted according to the humidity of the dust-laden gas through the regulating component 5. When the humidity of the dust-laden gas is large, the compressed air spraying force can be increased accordingly during cleaning to improve the cleaning effect of the cloth bag 14, and the heating degree of the compressed air can be adjusted according to the humidity of the dust-laden gas, so that after the compressed air is sprayed, the wet dust adhered to the surface of the cloth bag 14 is heated to improve the dust stripping effect, thereby improving the cleaning effect of the cloth bag 14 and the subsequent filtration efficiency of the cloth bag 14.

[0046] The detection component 2 includes a mounting plate 21 arranged on the inner side of the dust collector body 11, and the cloth bag 14 is arranged on the mounting plate 21. A bracket 22 fixed to the inner side of the dust collector body 11 is provided on the lower side of the mounting plate 21. The bracket 22 is used to support the mounting plate 21 and the cloth bag 14 on the mounting plate 21. A limit block 23 fixed to the dust collector body 11 is symmetrically provided on the upper side of the mounting plate 21 to limit the mounting plate 21. A first detection component 24 and a second detection component 25 are provided on one side of the dust collector body 11. The first detection component 24 and the second detection component 25 have the same structure.

[0047] The first detection member 24 includes a connecting member 241 fixed to the dust collector body 11, and a moving block 242 is slidably arranged in the connecting member 241. A first spring 244 fixed to the connecting member 241 is fixed on one side of the moving block 242, and a bellows 243 fixed to the connecting member 241 is fixed on the other side of the moving block 242. When the moving block 242 moves along the inner side of the connecting member 241, the bellows 243 expands and contracts to prevent gas from leaking out from between the moving block 242 and the connecting member 241. The connecting member 241 of the first detection member 24 is connected to the dust collector body 11 on the upper side of the mounting plate 21, that is, it is connected to the gas filtered by the cloth bag 14. The connecting member 241 of the second detection member 25 is connected to the dust collector body 11 on the lower side of the mounting plate 21, that is, it is connected to the unfiltered dust-laden gas.

[0048] A connecting rod 26 is fixed on one side of the moving block 242 of the first detecting member 24, and the connecting rod 26 moves through one side of the connecting member 241 of the first detecting member 24. An L-shaped rod 27 is fixed on one side of the moving block 242 of the second detecting member 25, and the L-shaped rod 27 moves through one side of the connecting member 241 of the second detecting member 25. A sliding rod 28 is rotatably provided at one end of the connecting rod 26 and the L-shaped rod 27, and a sleeve rod 29 is slidably provided between the two sliding rods 28, that is, the sliding rods 28 on both sides slide along the two sides of the sleeve rod 29 respectively to extend or shorten; a connecting shaft 210 is rotatably provided in the middle of the sleeve rod 29, and a first mounting member 212 is fixed on the lower side of the connecting shaft 210. The telescopic end of the first telescopic member 213 is symmetrically fixed to the lower side of the member 212, and the fixed end of the first telescopic member 213 is fixed with a fixing plate 214. The fixing plate 214 is fixed to the connecting member 241 of the first detection member 24. The first telescopic member 213 can support and guide the first mounting member 212. A pressure rod 215 is fixed to one side of the sleeve rod 29. The lower side of the end of the pressure rod 215 away from the sleeve rod 29 is set as an arc-shaped end face to facilitate the pressure on the first switch 32. A protective shell 211 fixed to the dust collector body 11 is provided on the outside of the first mounting member 212. The protective shell 211 can protect the detection component 2, trigger component 3 and auxiliary component 6 therein.

[0049] When processing the dust-laden gas, the unfiltered dust-laden gas and the filtered gas can respectively push the second detection member 25 and the moving block 242 of the first detection member 24 away from the dust collector body 11, and the first spring 244 is compressed, thereby respectively driving the synchronous movement of the L-shaped rod 27 and the connecting rod 26. Due to the filtering setting of the bag 14 and the adhesion of dust on the surface of the bag 14, the pressure of the unfiltered dust-laden gas on the lower side of the mounting plate 21 is relatively large, which makes the L-shaped rod 27 move outward a large distance relative to the connecting rod 26. Through the sliding rods 28 on both sides, the sleeve rod 2 9 moves away from the dust collector body 11 and deflects around the connecting shaft 210, so that the first mounting member 212 moves outward away from the dust collector body 11, the telescopic end of the first telescopic member 213 extends, and the pressure rod 215 deflects toward the side of the connecting rod 26. As the amount of dust attached to the surface of the cloth bag 14 increases during use, the gas pressure difference on both sides of the cloth bag 14 will gradually increase, and the deflection angle of the pressure rod 215 toward the side of the connecting rod 26 will gradually increase, so that the gas pressure difference on both sides of the cloth bag 14 can be converted into the deflection angle of the pressure rod 215 for detection.

[0050] The trigger assembly 3 includes a first movable member 31 slidably mounted on the first mounting member 212. The first mounting member 212 is provided with an arcuate groove 35 adapted to the first movable member 31. The first movable member 31 is slidably mounted along the arcuate groove 35. The arcuate groove 35 is formed in an arc shape around the connecting shaft 210. A first switch 32 is mounted on one side of the first movable member 31. A first gear member 33 is fixedly mounted on one side of the first movable member 31 to rotate with the connecting shaft 210.

[0051] As the amount of dust attached to the surface of the cloth bag 14 increases during use, the gas pressure difference on both sides of the cloth bag 14 gradually increases. When the pressure rod 215 rotates to the position of the first movable part 31, the pressure rod 215 is pressed against the first switch 32 away from the lower side of one end of the sleeve rod 29, which will automatically trigger the cleaning component 4 to clean the dust on the surface of the cloth bag 14.

[0052] The dust cleaning assembly 4 includes an air tank 41 fixed to the dust collector body 11. A blow pipe 42 is fixedly connected to the upper side of the air tank 41. The blow pipe 42 passes through one side of the dust collector body 11. A plurality of nozzles are provided on the lower side of the blow pipe 42, facing downward and corresponding to the middle parts of the plurality of bags 14. A pulse valve 43 is provided on the blow pipe 42. The air tank 41 is connected to an air compressor via a pipeline, and compressed air is delivered to the air tank 41 by the air compressor (this is the prior art).

[0053] When the pressure rod 215 is pressed against the first switch 32, the pulse controller will be controlled to output a pulse signal to control the pulse valve 43 to open. The compressed air in the air tank 41 passes through the blowing pipe 42 and is sprayed to the inside of the bag 14 through the nozzle on the lower side of the blowing pipe 42, so as to control the instantaneous release of the compressed air through the blowing pipe 42. The instantaneous ejection of compressed air increases the pressure in the bag 14 and causes the bag 14 to vibrate at a high frequency, peeling off the dust attached to the surface of the bag 14 and shaking it into the ash hopper on the lower side of the dust collector body 11, thereby cleaning the dust on the surface of the bag 14 and improving the filtering effect of the bag 14. The dust in the ash hopper can be discharged through the ash unloading valve on the lower side of the dust collector body 11.

[0054] The control assembly 5 includes a mounting shell 51 fixed to the air inlet of the dust collector body 11. Filters 52 are fixed on both sides of the mounting shell 51 to filter the dust-laden gas. A humidity sensor 53 is provided in the mounting shell 51. The mounting shell 51 can be arranged at a 45-degree angle to the airflow direction to reduce direct impact of dust. A connecting pipe 54 fixedly connected to the air storage tank 41 is fixed on the upper side of the mounting shell 51. A pulse control valve is provided on the connecting pipe 54.

[0055] The humidity of the dust-laden gas can be detected by the humidity sensor 53, and when the dust cleaning component 4 is triggered to clean, the pulse control valve on the connecting pipe 54 can also be controlled to open, so that the compressed air in the air storage tank 41 can also enter the installation shell 51 through the connecting pipe 54 to backflush and clean the dust attached to the surface of the filter 52.

[0056] A shell 55 is fixedly provided on one side of the dust collector body 11, and a sliding rheostat 56 is fixedly provided in the shell 55. The sliding rheostat 56 is electrically connected to the air compressor and the electric heating jacket 512 external to the gas tank 41. The coil resistance of the sliding rheostat 56 is connected to the circuit on the side where its slider is away from the second electromagnetic block 58. A connecting block 57 is fixedly provided on the slider of the sliding rheostat 56. A second magnetic block 59 is fixedly provided on one side of the connecting block 57. A second electromagnetic block 58 that repels the second magnetic block 59 is fixedly provided on the inside of the shell 55. The second electromagnetic block 58 is electrically connected to the humidity sensor 53. A third spring 511 fixed to the shell 55 is fixedly provided on the other side of the connecting block 57. A second switch 510 is provided on the upper side of the connecting block 57 of the shell 55. The upper side of the connecting block 57 is set as an arc-shaped end surface to facilitate the pressure on the second switch 510. An electric heating jacket 512 is provided on the outer side of the blowing pipe 42.

[0057] When the humidity of the dust-laden gas detected by the humidity sensor 53 is high, the resistance of the humidity sensor 53 will be relatively small, the current in the connecting circuit will be relatively large, the repulsive effect of the second electromagnetic block 58 on the second magnetic block 59 will be relatively large, and the distance that the connecting block 57 drives the slider of the sliding rheostat 56 to move away from the second electromagnetic block 58 will be relatively large. The third spring 511 is compressed, so that the resistance of the sliding rheostat 56 connected to the circuit is reduced relatively more, the current in the circuit is increased relatively more, and the power of the air compressor is relatively large, so that relatively more compressed air can be delivered to the air storage tank 41 during the time when the compressed air is delivered to the air storage tank 41 by the air compressor, so that the air storage tank 41 is filled with a large amount of compressed air. The compressed air pressure is relatively large, so that the compressed air can be blown with relatively large force on the cloth bag 14 during dust cleaning, thereby improving the cleaning effect of the cloth bag 14; at the same time, the movement of the connecting block 57 away from the second electromagnetic block 58 can make the upper end of the connecting block 57 no longer press against the second switch 510, so that the electric heating sleeve 512 can work, and the ejected compressed air can be heated during dust cleaning to improve the stripping effect of the wet dust attached to the surface of the cloth bag 14, and when the humidity of the dust-containing gas is high, the resistance value of the sliding rheostat 56 connected to the circuit is reduced, which can also make the heating power of the electric heating sleeve 512 relatively large, so as to increase the degree of heating of the compressed air, further improve the dust stripping effect, and improve the subsequent filtration effect of the cloth bag 14.

[0058] A first adjustment control 34 is provided on the upper side of the first mounting member 212. The first adjustment control 34 includes a gear rod 341 slidably mounted with the first mounting member 212. A limiting groove 342 is formed on the first mounting member 212 to match the gear rod 341. The gear rod 341 slides along the limiting groove 342. The gear rod 341 of the first adjustment control 34 is meshed with one side of the first gear member 33. A first electromagnetic block 343 is fixed on the upper side of the first mounting member 212. The first electromagnetic block 343 is electrically connected to the humidity sensor 53. A first magnetic block 344 is fixed on the side of the gear rod 341 near the first electromagnetic block 343. The first electromagnetic block 343 and the first magnetic block 344 repel each other. A second spring 345 is fixed on one side of the gear rod 341. A fixing block 346 is fixed on one end of the second spring 345. The fixing block 346 of the first adjustment control 34 is fixed to the first mounting member 212.

[0059] When the humidity of the dust-laden gas detected by the humidity sensor 53 is relatively high, the first electromagnetic block 343 of the first adjustment control unit 34 may also have a relatively large repulsive effect on the first magnetic block 344, causing the gear member 341 to move a larger distance away from the first electromagnetic block 343, and the second spring 345 is compressed, so that the first gear member 33 drives the first moving member 31 to deflect along the arc groove 35 away from the connecting rod 26 at a larger angle, thereby reducing the deflection angle when the pressure rod 215 is pressed against the first switch 32, and thus lowering the trigger limit value of the gas pressure difference on both sides of the bag 14, so that when the humidity of the dust-laden gas is relatively high, the dust cleaning component 4 can be triggered to clean the bag 14 relatively faster, thereby shortening the cleaning cycle of the dust cleaning component 4, and timely cleaning the dust on the surface of the bag 14, thereby improving the filtering effect of the bag 14.

[0060] The auxiliary component 6 is provided on one side of the trigger component 3. The auxiliary component 6 further assists the control component 5 in adjusting the cleaning force of the dust cleaning component 4 according to the amount of dust attached to the surface of the bag 14, and automatically reminds the user to replace the bag 14 according to the gas pressure difference on both sides of the bag 14 detected by the detection component 2 at the beginning.

[0061] The auxiliary component 6 includes a second mounting member 61 fixed on the upper side of the connecting shaft 210, and the telescopic end of the second telescopic member 62 is symmetrically fixed on the lower side of the second mounting member 61. The fixed end of the second telescopic member 62 is fixed to the fixed plate 214. The second telescopic member 62 can support and guide the second mounting member 61. A second movable member 63 is slidably provided on the second mounting member 61. Accordingly, an arc-shaped through groove adapted to the second movable member 63 is opened through the second mounting member 61. The second movable member 63 is slidably arranged along the arc-shaped through groove, and the arc-shaped through groove is arranged in an arc shape around the connecting shaft 210. A third switch 66 is provided on one side of the second movable member 63, and the upper side of the pressure rod 215 away from the end of the sleeve rod 29 can press the third switch 66 and The width of the upper side of the pressure rod 215 can form a pressing effect on the third switch 66; the second movable member 63 is fixedly provided with a second gear member 64 rotatably arranged with the connecting shaft 210 on the upper side, and the second adjustment control 65 is provided on the upper side of the second mounting member 61. The second adjustment control 65 has the same structure as the first adjustment control 34. The gear rod member 341 of the second adjustment control 65 is engaged with one side of the second gear member 64. The limiting groove 342 of the second adjustment control 65 is provided on the second mounting member 61. The fixing block 346 of the second adjustment control 65 is fixed on the second mounting member 61. A pressure sensor 67 is provided on the upper side of the bracket 22. The second electromagnetic block 58 and the first electromagnetic block 343 of the second adjustment control 65 are electrically connected to the pressure sensor 67.

[0062] As the bag 14 filters the dust-laden gas, the amount of dust attached to the surface of the bag 14 increases, which will increase the pressure detected by the pressure sensor 67, causing its resistance to decrease and the current in the connecting circuit to increase. This can further adjust the magnetic strength of the second electromagnetic block 58 to adapt to the amount of dust attached to the surface of the bag 14. When the amount of dust attached to the surface of the bag 14 is large, the cleaning force of the cleaning component 4 can be further increased to improve the cleaning effect.

[0063] Each time the dust collector body 11 is initially used, the pressure sensor 67 can detect the amount of dust attached to the surface of the bag 14 at the initial time. When the amount of dust attached to the surface of the bag 14 is large, the pressure detected by the pressure sensor 67 will be relatively large, which can make the first electromagnetic block 343 of the second adjustment component 65 produce a relatively large repulsive effect on the first magnetic block 344, so that the gear rod 341 of the second adjustment component 65 moves a relatively large distance away from the first electromagnetic block 343, so that the second gear member 64 drives the second moving member 63 to deflect toward the connecting rod 26 at a larger angle. When the amount of dust attached to the surface of the bag 14 is large, the gas pressure difference on both sides of the bag 14 will be relatively large at the initial time, which will make the initial deflection angle of the pressure rod 215 toward the connecting rod 26 relatively large. In accordance with the position of the adjusted second movable member 63, if the pressure rod 215 initially presses against the third switch 66 away from the upper side of the end of the sleeve rod 29, it means that the amount of dust attached to the surface of the cloth bag 14 matches the gas pressure difference on both sides of the cloth bag 14. If the pressure rod 215 does not press against the third switch 66, it means that the deflection angle of the pressure rod 215 is relatively small, indicating that the gas pressure difference on both sides of the cloth bag 14 is small, which does not match the amount of dust attached to the surface of the cloth bag 14. It may be due to the long-term use of the cloth bag 14, resulting in greater wear of the cloth bag 14, causing the filter pores of the cloth bag 14 to expand or be damaged, and then resulting in a relatively small gas pressure difference on both sides of the cloth bag 14. At this time, an alarm signal will be triggered to remind the staff to check or replace the cloth bag 14 to ensure the filtering effect of the cloth bag 14.

[0064] Example 2

[0065] like Figures 13 to 16The dust collector body 11 is isolated in the form of a high-density aluminum silicate insulation layer 71, an air layer 72 and a high-density rock wool insulation layer 73; the existing multi-chamber structure of the dust collector is designed in that the wall panels between adjacent dust chambers and between the flue and the dust chamber are shared, and the dust chamber and the external environment are isolated by only a single layer of insulation cotton, the dust chamber and the dust chamber are isolated by only a single layer of board, and the flue and the dust chamber are isolated by only a single layer of board, so that there is obvious heat exchange between adjacent dust chambers, between the flue and the dust chamber, and between the dust chamber and the external environment. Especially for small multi-chamber dust collectors, due to their large specific surface area, the heat exchange between adjacent dust chambers, flues and dust chambers, and between the dust chamber and the external environment is more obvious. On the one hand, there is a large amount of flue gas enthalpy loss. On the other hand, when one or several dust chambers are removed offline, there will still be a large amount of heat exchange, resulting in the temperature in the offline dust chamber still being high, making it impossible to carry out effective maintenance operations, and losing its original functional requirements for offline maintenance;

[0066] By adopting the form of high-density aluminum silicate insulation layer 71, air layer 72 and high-density rock wool insulation layer 73, the dust removal room and the external environment are effectively and scientifically insulated by adopting the process of air layer 72, high-density aluminum silicate insulation layer 71 and high-density rock wool insulation layer 73; between the dust removal rooms, physical isolation, air layer 72, high-density aluminum silicate insulation layer 71 and high-density rock wool insulation layer 73 are effectively and scientifically insulated; between the dust removal rooms and the flue, physical isolation, air layer 72, high-density aluminum silicate insulation layer 71 and high-density rock wool insulation layer 73 are effectively and scientifically insulated. The process of the insulation layer 73 is efficient and scientific in insulation; thereby, the heat loss of the exhaust gas during the dust removal process can be eliminated to the greatest extent, the temperature drop phenomenon during the exhaust gas dust removal process can be reduced, and after one or several dust removal chambers are removed offline, the internal temperature gradually approaches the ambient temperature, thereby achieving effective and safe maintenance operations on the dust removal chambers removed offline without shutting down the system, and achieving a temperature drop of <8°C when the temperature of conventional dust collectors of the same specifications drops by 30-50°C, effectively improving the thermal utilization rate of the clean flue gas after dust removal.

[0067] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0068] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bag filter with high efficiency and low heat loss, comprising: A dust collector body (11), wherein an exhaust pipe (12) is provided at the air inlet end on the lower side of the dust collector body (11), an exhaust pipe (13) is provided at the air outlet end on the upper side of the dust collector body (11), and a cloth bag (14) is provided inside the dust collector body (11); The invention is characterized in that it further comprises: a detection component (2), the detection component (2) being arranged on one side of the dust collector body (11), the detection component (2) detecting the gas pressure difference on both sides of the bag (14) according to the deflection angle, the detection component (2) comprising a connecting shaft (210), and a first mounting member (212) being fixedly provided on the lower side of the connecting shaft (210); A dust cleaning component (4), the dust cleaning component (4) is arranged on one side of the cloth bag (14), and the dust cleaning component (4) is used to clean dust on the surface of the cloth bag (14); A trigger component (3), the trigger component (3) being arranged on the detection component (2), the trigger component (3) automatically triggering the dust cleaning component (4) to clean the bag (14) according to the deflection angle detected by the detection component (2), and automatically adjusting the trigger limit value of the detection component (2) according to the humidity of the dust-laden gas; A regulating component (5), the regulating component (5) being arranged on one side of the dust collector body (11), the regulating component (5) automatically adjusting the cleaning force of the dust cleaning component (4) according to the humidity of the dust-laden gas; The trigger assembly (3) includes a first movable member (31) slidably arranged with a first mounting member (212); an arcuate groove (35) adapted to the first movable member (31) is formed through the first mounting member (212); the first movable member (31) is slidably arranged along the arcuate groove (35); a first switch (32) is mounted on one side of the first movable member (31); and a first gear member (33) is fixedly arranged on one side of the first movable member (31) and rotatably arranged with the connecting shaft (210); A first adjustment control unit (34) is provided on the upper side of the first mounting member (212), and the first adjustment control unit (34) includes a toothed rod member (341) slidably arranged with the first mounting member (212). A limiting groove (342) adapted to the toothed rod member (341) is provided on the first mounting member (212), and the toothed rod member (341) is slidably arranged along the limiting groove (342). The toothed rod member (341) of the first adjustment control unit (34) is meshed with one side of the first gear member (33). A first electromagnetic block (343) is fixedly provided on the upper side of the component (212); a first magnetic block (344) is fixedly provided on the side of the gear rod component (341) close to the first electromagnetic block (343); the first electromagnetic block (343) and the first magnetic block (344) repel each other; a second spring (345) is fixedly provided on one side of the gear rod component (341); a fixed block (346) is fixedly provided at one end of the second spring (345); and the fixed block (346) of the first adjustment control component (34) is fixedly provided to the first mounting component (212).

2. The high-efficiency, low-heat-loss bag dust collector according to claim 1 is characterized in that: The detection assembly (2) further comprises a mounting plate (21) arranged on the inner side of the dust collector body (11), the cloth bag (14) being arranged on the mounting plate (21), a bracket (22) fixed to the inner side of the dust collector body (11) being arranged on the lower side of the mounting plate (21), a limit block (23) fixed to the dust collector body (11) being symmetrically arranged on the upper side of the mounting plate (21), a first detection member (24) and a second detection member (25) being arranged on one side of the dust collector body (11), the first detection member (24) and the second detection member (25) having the same structure.

3. The high efficiency and low heat loss bag dust collector according to claim 2 is characterized in that: The first detection member (24) includes a connecting member (241) fixed to the dust collector body (11), a moving block (242) is slidably arranged in the connecting member (241), a first spring (244) fixed to the connecting member (241) is fixed on one side of the moving block (242), and a bellows (243) fixed to the connecting member (241) is fixed on the other side of the moving block (242), the connecting member (241) of the first detection member (24) is connected to the dust collector body (11) located on the upper side of the mounting plate (21), and the connecting member (241) of the second detection member (25) is connected to the dust collector body (11) located on the lower side of the mounting plate (21).

4. The high-efficiency, low-heat-loss bag dust collector according to claim 3 is characterized by: A connecting rod (26) is fixedly provided on one side of the moving block (242) of the first detecting member (24), and the connecting rod (26) is movable and passes through one side of the connecting member (241) of the first detecting member (24). An L-shaped rod (27) is fixedly provided on one side of the moving block (242) of the second detecting member (25), and the L-shaped rod (27) is movable and passes through one side of the connecting member (241) of the second detecting member (25). A sliding rod (28) is rotatably provided at one end of each of the connecting rod (26) and the L-shaped rod (27), and a sleeve is slidably provided between the two sliding rods (28). The rod (29) is provided with a middle portion thereof being rotatably mounted on the connecting shaft (210), the telescopic end of the first telescopic member (213) being symmetrically fixed on the lower side of the first mounting member (212), the fixed end of the first telescopic member (213) being fixed with a fixing plate (214), the fixing plate (214) being fixed to a connecting member (241) of the first detecting member (24), a pressing rod (215) being fixed on one side of the rod (29), and a protective shell (211) being fixed to the dust collector body (11) being provided on the outer side of the first mounting member (212).

5. The high efficiency and low heat loss bag dust collector according to claim 1 is characterized in that: The dust cleaning assembly (4) comprises an air storage tank (41) fixedly mounted on the dust collector body (11); a blow pipe (42) is fixedly connected to the upper side of the air storage tank (41); and a pulse valve (43) is provided on the blow pipe (42).

6. The high-efficiency, low-heat-loss bag dust collector according to claim 5 is characterized in that: The regulating assembly (5) comprises a mounting shell (51) fixedly mounted on the air inlet of the dust collector body (11), a filter screen (52) fixedly mounted on both sides of the mounting shell (51), a humidity sensor (53) mounted in the mounting shell (51), a connecting pipe (54) fixedly mounted on the upper side of the mounting shell (51) and connected to the air storage tank (41), a housing (55) fixedly mounted on one side of the dust collector body (11), a sliding rheostat (56) fixedly mounted in the housing (55), and the sliding rheostat A connecting block (57) is fixed on the slide of the device (56), a second magnetic block (59) is fixed on one side of the connecting block (57), a second electromagnetic block (58) that repels the second magnetic block (59) is fixed on the inner side of the shell (55), a third spring (511) fixed to the shell (55) is fixed on the other side of the connecting block (57), a second switch (510) is provided on the upper side of the shell (55), and an electric heating sleeve (512) is provided on the outer side of the blowing pipe (42).

7. The high-efficiency, low-heat-loss bag dust collector according to claim 4 is characterized in that: The auxiliary component (6) is further included. The auxiliary component (6) is arranged on one side of the trigger component (3). The auxiliary component (6) further assists the control component (5) in adjusting the cleaning force of the dust cleaning component (4) according to the amount of dust attached to the surface of the bag (14), and automatically reminds the user to replace the bag (14) according to the gas pressure difference between the two sides of the bag (14) detected by the detection component (2) at the beginning.

8. The high-efficiency, low-heat-loss bag dust collector according to claim 7, characterized in that: The auxiliary component (6) includes a second mounting member (61) fixed on the upper side of the connecting shaft (210), a telescopic end of a second telescopic member (62) is symmetrically fixed on the lower side of the second mounting member (61), a fixed end of the second telescopic member (62) is fixed to the fixed plate (214), a second movable member (63) is slidably arranged on the second mounting member (61), a third switch (66) is arranged on one side of the second movable member (63), a second gear member (64) is fixed on the upper side of the second movable member (63) and is rotatably arranged with the connecting shaft (210), a second adjustment control (65) is arranged on the upper side of the second mounting member (61), the second adjustment control (65) has the same structure as the first adjustment control (34), a gear rod member (341) of the second adjustment control (65) is meshed with one side of the second gear member (64), and a pressure sensor (67) is arranged on the upper side of the bracket (22).

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