Bag type dust collector

Abstract

The utility model provides a bag type dust collector, which relates to the field of dust collectors and comprises a bag type dust collector body and a dust hopper, the bag type dust collector body is positioned above the dust hopper; an inner cavity of the bag type dust collector body is communicated with the dust hopper; the ash hopper is provided with a feeding hole; a discharge hole is formed in the top of the bag type dust collector body; the filter assembly in the inner cavity comprises a tubesheet, a bag cage and a filter bag; the bag cage is fixedly connected with the vent holes in the tubesheet; the bag cage is sleeved in the filter bag; the bag cage comprises longitudinal ribs, supporting rings and annular scrapers; the supporting rings are fixed with the longitudinal bars; each annular scraping plate is positioned between two adjacent supporting rings; an iron sheet is arranged in the annular scraping plate; an electromagnet and a first driving mechanism are arranged in the inner cavity; the first driving mechanism drives the electromagnet to move in the vertical direction, and the annular scraper moves along with the electromagnet. According to the utility model, the problem that the filtering efficiency is reduced due to the fact that part of the filter bags cannot be contacted with gas immediately when the filter bags are separated by the moving plate when the moving plate is adopted to control the bristles to clean the filter bags in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of dust collectors, and more particularly to a bag filter dust collector. Background Technology

[0002] A bag filter is a purification device that uses organic or inorganic fiber filter cloth to filter dust from gas. However, during the use of a bag filter, dust settles into the ash hopper by its own gravity. After a long period of use, dust will adhere to the surface of the filter bag, causing blockage.

[0003] To address this, Chinese patent application number 201921041887.3 discloses an anti-clogging bag filter, comprising a housing with a tube sheet at the upper end, filter bags installed in the perforations of the tube sheet, a frame inside the filter bags, an air inlet on one side of the housing and an exhaust outlet on the other side, a dust hopper at the bottom of the housing with a discharge valve at the lower end of the dust hopper, two support plates on the inner wall of the housing, a screw rotatably mounted on the support plates at both ends, a nut on the screw connected to a movable plate, a slider at the other end of the movable plate, a slide rail on the side wall of the housing that cooperates with the slider, mounting holes corresponding to the filter bags on the movable plate, brush bristles inside the mounting holes, a rotating shaft on the side wall of the housing, a drive bevel gear mounted on one end of the rotating shaft inside the housing, a driven bevel gear meshing with the drive bevel gear on the screw, and the rotating shaft driven by a drive mechanism; the anti-clogging bag filter provided by the above patent has a movable plate with mounting holes and brush bristles inside the mounting holes, and the brush bristles remove dust from the outside of the filter bags by driving the movable plate to move up and down. When using the anti-clogging bag filter provided by the above-mentioned patent, since the bag filter needs to remove dust by contacting the filter bag with the bristles, and the filter bag is fitted inside the mounting hole, if the moving plate moves downward when removing dust from the filter bag, the moving plate will separate the filter bag, and the unfiltered gas will be blocked by the moving plate, so that the part of the filter bag above the moving plate cannot immediately contact the unfiltered gas, thus reducing the filtration efficiency of the filter bag. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a bag filter that solves the problem in existing technologies where the moving plate controls the brush bristles to clean the filter bags, causing the moving plate to separate the filter bags and preventing some of the filter bags from immediately contacting the unfiltered gas, thus reducing the filtration efficiency of the filter bags. This invention improves the filtration efficiency of the filter bags during cleaning.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a bag filter, including a bag filter body and a dust hopper; the bag filter body has an inner cavity; the bag filter body is located above the dust hopper; the inner cavity is connected to the top of the dust hopper;

[0007] The ash hopper is provided with a feed inlet; the top of the bag filter body is provided with a discharge outlet; the discharge outlet is connected to the inner cavity; a filter assembly is provided in the inner cavity; the filter assembly includes a tube sheet, a bag cage, and a filter bag; the tube sheet is horizontally arranged; the tube sheet is fixed to the side wall of the inner cavity; the tube sheet is located below the discharge outlet; ventilation holes are provided on the tube sheet; the bag cage is fixedly connected to the ventilation holes; the bag cage is fitted inside the filter bag;

[0008] The bag cage includes several longitudinal ribs, several support rings, and several annular scrapers; the longitudinal ribs are arranged vertically; the support rings are arranged horizontally; all the longitudinal ribs are arranged in a circumferential array; the support rings are fixed to the longitudinal ribs; all the support rings are arranged in a vertical direction; the annular scrapers have several connecting holes; the longitudinal ribs are fitted into the connecting holes; each annular scraper is located between two adjacent support rings; and an iron sheet is provided inside the annular scraper.

[0009] The inner cavity is also provided with an electromagnet and a first driving mechanism; the first driving mechanism and the electromagnet are located below the flower plate; the first driving mechanism drives the electromagnet to move in the vertical direction; the electromagnet drives the annular scraper to move in the vertical direction.

[0010] The bag filter provided by this utility model preferably includes a first driving mechanism comprising a linear guide rail and a cylinder; both the linear guide rail and the cylinder are fixed to the side wall of the inner cavity; the linear guide rail is vertically arranged; the telescopic shaft of the cylinder is arranged upward; the electromagnet is fixed to the slider of the linear guide rail; the telescopic shaft of the cylinder is fixed to the slider of the linear guide rail.

[0011] The bag filter provided by this utility model preferably includes a filter cover in the inner cavity; the filter cover includes a cover body, a filter screen and a fixed frame; the cover body is rectangular; the interior of the cover body is hollow; the cover body has an opening extending from the left side to the right side; the filter screen covers the left side of the opening; the fixed frame is fixed around the right edge of the opening; the first drive mechanism passes through the right side of the opening and is located inside the cover body; the fixed frame is detachably fixed to the side wall of the inner cavity.

[0012] The bag filter provided by this utility model preferably further includes a material control assembly; the material control assembly is located below the tube sheet; the material control assembly includes a first baffle, a second baffle, a second drive mechanism, and a third drive mechanism; the first baffle is rotatably fixed to the left side wall of the inner cavity; the second baffle is rotatably fixed to the right side wall of the inner cavity; the second drive mechanism drives the first baffle to rotate around its left end; the third drive mechanism drives the second baffle to rotate around its right end.

[0013] When the first baffle and the second baffle are set horizontally, the upper surface of the first baffle and the upper surface of the second baffle are on the same horizontal plane, and the first baffle and the second baffle cover the air inlet of the inner cavity.

[0014] The bag filter provided by this utility model preferably has a rectangular body; the second drive mechanism and the third drive mechanism are motors; the second drive mechanism is fixed to the left end of the front side of the bag filter body; the third drive mechanism is fixed to the right end of the front side of the bag filter body; the output shafts of the second drive mechanism and the third drive mechanism both face rearward; a first fixing hole and a second fixing hole are provided on the front side of the bag filter body; the output shaft of the second drive mechanism passes through the first fixing hole and is fixed to the front end of the first baffle; the output shaft of the third drive mechanism passes through the second fixing hole and is fixed to the front end of the second baffle.

[0015] The bag filter provided by this utility model preferably has a first elastic block fixed on the upper plate surface of the first baffle and a second elastic block fixed on the lower plate surface of the second baffle.

[0016] When the second driving mechanism drives the first baffle to rotate upward, the first elastic block contacts the side wall of the inner cavity; when the third driving mechanism drives the second baffle to rotate downward, the second elastic block contacts the inner wall of the ash hopper.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] This utility model provides a bag filter, including a bag cage, which comprises several longitudinal ribs, several support rings, and several annular scrapers. It also includes an electromagnet and a first driving mechanism. Several connecting holes are formed in the annular scrapers, allowing the longitudinal ribs to fit within these holes. The first driving mechanism drives the electromagnet to move vertically. When the electromagnet is energized, it generates magnetic force, attracting iron pieces within the annular scrapers. This causes the annular scrapers to move vertically along the longitudinal ribs, contacting the filter bags located outside the bag cage and cleaning them by squeezing the bags. Furthermore, the longitudinal ribs are fixed to the support rings to support and construct the bag cage. Since the longitudinal ribs are divided into several areas by the support rings, an annular scraper is placed between every two adjacent support rings. Because the electromagnet has magnetic attraction when energized and loses its magnetic attraction when de-energized, the filter bags can be cleaned in sections. Since the inlet is located below the filter bags, air frequently contacts the bottom of the filter bags, meaning the bottom of the filter bags is cleaned more frequently. The use of annular scrapers in the filter bags allows for adjustment of the cleaning frequency in each area, enabling multiple cleanings of areas with severe dust clogging, thereby effectively improving the filtration efficiency of the baghouse dust collector. Furthermore, by placing the annular scrapers inside the filter bags and using magnetic attraction to guide their movement, the dust collection components are prevented from obstructing the air requiring dust removal. This allows for cleaning of dust adsorbed on the filter bag surface without affecting the filter bag's contact efficiency with air, further enhancing the baghouse dust collector's filtration efficiency. Existing technologies using moving plates to control brush bristles for cleaning filter bags suffer from the problem of the moving plate separating the filter bags, preventing some bags from immediately contacting the unfiltered gas and reducing filtration efficiency. The baghouse dust collector provided by this invention, by placing annular scrapers inside the filter bags and using magnetic attraction to guide their movement, effectively avoids obstructing the air requiring dust removal from the dust collection components, thus significantly improving the baghouse dust collector's filtration efficiency. Attached Figure Description

[0019] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0020] Figure 1 This is a schematic diagram of the main cross-sectional structure of the bag filter provided in Embodiment 1 of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the bag filter provided in Embodiment 1 of this utility model.

[0022] Figure 3 This is a schematic diagram of the main structure of the bag filter provided in Embodiment 1 of this utility model.

[0023] Figure 4 This is a schematic diagram of the bag cage structure in the bag filter provided in Embodiment 1 of this utility model.

[0024] Figure 5 This is a schematic diagram of the filter cover in the bag filter provided in Embodiment 1 of this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0026] Example 1:

[0027] like Figures 1-4 As shown, Embodiment 1 of this utility model provides a bag filter, including a bag filter body 1 and a dust hopper 2; the bag filter body 1 is provided with an inner cavity 11; the bag filter body 1 is located above the dust hopper 2; the inner cavity 11 is connected to the top of the dust hopper 2.

[0028] The ash hopper 2 is provided with a feed inlet 21; the top of the bag filter body 1 is provided with a discharge outlet 12; the discharge outlet 12 is connected to the inner cavity 11; the inner cavity 11 is provided with a filter assembly 13; the filter assembly 13 includes a tube sheet 131, a bag cage 132 and a filter bag 133; the tube sheet 131 is horizontally arranged; the tube sheet 131 is fixed to the side wall of the inner cavity 11; the tube sheet 131 is located below the discharge outlet 12; the tube sheet 131 is provided with a ventilation hole 1311; the bag cage 132 is fixedly connected to the ventilation hole 1311; the bag cage 132 is fitted inside the filter bag 133;

[0029] The bag cage 132 includes several longitudinal ribs 1321, several support rings 1322, and several annular scrapers 1323; the longitudinal ribs 1321 are arranged vertically; the support rings 1322 are arranged horizontally; all the longitudinal ribs 1321 are arranged in a circumferential array; the support rings 1322 are fixed to the longitudinal ribs 1321; all the support rings 1322 are arranged in a vertical direction; several connecting holes 13231 are opened on the annular scrapers 1323; the longitudinal ribs 1321 are fitted into the connecting holes 13231; each annular scraper 1323 is located between two adjacent support rings 1322; an iron sheet is provided inside the annular scraper 1323;

[0030] The inner cavity 11 is also provided with an electromagnet 14 and a first driving mechanism 15; the first driving mechanism 15 and the electromagnet 14 are located below the flower plate 131; the first driving mechanism 15 drives the electromagnet 14 to move in the vertical direction; the electromagnet 14 drives the annular scraper 1323 to move in the vertical direction.

[0031] When using the bag filter provided in Embodiment 1 of this utility model, dusty air enters the bag filter from the inlet 21. The air enters the inner cavity 11 from the ash hopper 2, is filtered by the filter bags 133, and enters the vent 1311 through the gaps in the bag cages 132. Optionally, the bag cages 132 can be fixed in the vent 1311 by adding a ventilator. The ventilator is connected to the vent 1311, passes through the tube sheet 131, and leaves the bag filter from the outlet 12. The filtered dust falls into the ash hopper 2. If the outer surface of the filter bags 133 is adsorbed by dust, resulting in low filtration efficiency, the electromagnet 14 is energized, and the first drive mechanism 15 drives the electromagnet 14 to move vertically. The electromagnet 14 attracts the iron sheet in the annular scraper 1323, causing the annular scraper 1323 to move vertically. 3. Following the electromagnet 14, the annular scraper 1323 moves up and down along the longitudinal rib 1321, and contacts the inner side of the filter bag 133. By continuously scraping the filter bag 133, the dust on the outer surface of the filter bag 133 is removed. Each annular scraper 1323 only cleans between two adjacent support rings 1322. The area between each two support rings 1322 is considered as a section. When the annular scraper 1323 has finished cleaning the section, the electromagnet 14 is de-energized, and it moves to the next section to be cleaned, and the electromagnet 14 is energized again. If the annular scraper 1323 in an adjacent area is attracted by the electromagnet 14, it will be blocked by the support ring 1322 between the two sections. Furthermore, when the annular scraper 1323 cleans the filter bag 133, air can pass through the inner circle of the annular tube plate 1323.

[0032] The bag filter provided in Embodiment 1 of this utility model includes a bag cage 132, which includes several longitudinal ribs 1321, several support rings 1322, and several annular scrapers 1323. It also includes an electromagnet 14 and a first driving mechanism 15. Several connecting holes 13231 are formed on the annular scrapers 1323, allowing the longitudinal ribs 1321 to be fitted into the connecting holes 13231. The first driving mechanism 15 drives the electromagnet 14 to move vertically and energizes the electromagnet 14. The electromagnet 14 generates a magnetic force, attracting the iron sheet inside the annular scraper 1323, thereby causing the annular scraper 1323 to move vertically along the longitudinal rib 1321. The annular scraper 1323 contacts the filter bag 133 located outside the bag cage 132, cleaning the dust by squeezing the filter bag 133. Furthermore, the longitudinal rib 1321 is fixed to the support ring 1322 to support and construct the bag cage 132. Since the longitudinal rib 1321 is divided into several areas by the support ring 1322, in each... An annular scraper 1323 is set between two adjacent support rings 1322. Since the electromagnet 14 has the characteristic of magnetic attraction when energized and losing its magnetic attraction when de-energized, the filter bag 133 can be cleaned in sections. Since the feed inlet 21 is located below the filter bag 133, the air is in frequent contact with the bottom of the filter bag 133, that is, the bottom of the filter bag 133 is cleaned more frequently. By setting the annular scraper 1323 in sections, the cleaning frequency of each section can be adjusted, and the areas with more serious dust blockage can be cleaned multiple times, thereby effectively improving the dust filtration efficiency of the bag filter. Furthermore, by setting the annular scraper 1323 inside the filter bag 133 and using magnetic attraction to guide the movement of the annular scraper 1323, the dust removal components are prevented from blocking the air that needs to be cleaned. Thus, the dust adsorbed on the surface of the filter bag 133 can be cleaned without affecting the contact efficiency between the filter bag 133 and the air, thereby effectively improving the dust filtration efficiency of the bag filter.

[0033] In existing technologies, when the brush bristles are controlled by a moving plate to clean the filter bags, the moving plate separates the filter bags 133, preventing some filter bags 133 from immediately contacting the unfiltered gas, thus reducing the filtration efficiency of the filter bags 133. The bag filter provided in Embodiment 1 of this utility model, by setting an annular scraper 1323 inside the filter bag 133 and using magnetic attraction to guide the movement of the annular scraper 1323, can effectively avoid the dust collection components from obstructing the air that needs to be dusted, thereby effectively improving the dust collection efficiency of the bag filter.

[0034] like Figure 1As shown, the bag filter provided in Embodiment 1 of this utility model, preferably, in order to realize the vertical movement of the electromagnet 14 by driving the first driving mechanism 15, specifically, the first driving mechanism 15 includes a linear guide rail 151 and a cylinder 152, both of which are fixed to the side wall of the inner cavity 11; further, the linear guide rail 151 is set vertically, the telescopic shaft of the cylinder 152 is set upward, the electromagnet 14 is fixed on the slider of the linear guide rail 151, and the telescopic shaft of the cylinder 152 is extended. The shaft is fixed to the slider of the linear guide 151. When the telescopic shaft of the cylinder 152 extends, it pushes the slider of the linear guide 151 to move upward, and the electromagnet 14 moves with the slider. If the electromagnet 14 is energized, the annular scraper 1323 moves upward with the electromagnet 14. When the telescopic shaft of the cylinder 152 retracts, it pulls the slider of the linear guide 151 to move downward, and the electromagnet 14 moves with the slider. If the electromagnet 14 is energized, the annular scraper 1323 moves downward with the electromagnet 14.

[0035] like Figure 1 and Figure 5 As shown, in the bag filter provided in Embodiment 1 of this utility model, preferably, when the first driving mechanism 15 drives the electromagnet 14 to move vertically, due to the large amount of dust in the inner cavity 11, the dust will fall onto the guide rail of the linear guide rail 151, thereby affecting the movement of the slider on the guide rail. At the same time, there may be iron filings in the dust. If the electromagnet 14 is energized, it will attract the iron filings. Therefore, a filter cover 16 is also provided in the inner cavity 11 to reduce the impact of dust on the linear guide rail 151 and the electromagnet 14. Specifically, the filter cover 16 includes a cover body 161, a filter screen 162, and a fixed frame 163. For ease of installation, the cover body 161 is set as a cuboid shape. The inside of the cover body 161 is hollow, and the cover body 161 extends from the left side to the right side. An opening 1611 is provided through the side, and a filter 162 covers the left side of the opening 1611. A fixing frame 163 is fixed around the right edge of the opening 1611, allowing the first drive mechanism 15 to pass through the right side of the opening 1611 and be located inside the cover 161. The fixing frame 163 is placed against the side wall of the inner cavity 11, and the fixing frame 163 is detachably fixed to the side wall of the inner cavity 11 by bolts. By installing a filter cover 16 on the outside of the first drive mechanism 15, the dust in the inner cavity 11 is blocked by the filter cover 16. Furthermore, the filter 162 is provided on the left side of the opening 1611 to filter dust. At the same time, the filter 162 does not reduce the magnetic attraction of the electromagnet 14 to the annular scraper 1323 after it is energized.

[0036] like Figure 1As shown, the bag filter provided in Embodiment 1 of this utility model preferably addresses the issue that if the filter bag 133 is clogged with dust, reducing the dust filtration efficiency, and unfiltered gas continues to enter the inner cavity 11, it may cause the air pressure inside the inner cavity 11 to rise and damage the bag filter. Therefore, a material control component 17 is also included to adjust the feeding rate of the unfiltered gas. The material control component 17 is located below the tube sheet 131. Specifically, the material control component 17 includes a first baffle 171, a second baffle 172, a second drive mechanism 173, and a third drive mechanism 174. The first baffle 171... The first baffle 171 is rotatably fixed to the left side wall of the inner cavity 11, and the second baffle 172 is rotatably fixed to the right side wall of the inner cavity 11. The rotatable fixing method can be a hinged connection. The second drive mechanism 173 drives the first baffle 171 to rotate around the left end of the first baffle 171 as the center, and the third drive mechanism 174 drives the second baffle 172 to rotate around the right end of the second baffle 172 as the center. The deflection angle of the first baffle 171 is controlled by the second drive mechanism 173, and the deflection angle of the second baffle 172 is controlled by the third drive mechanism 174.

[0037] More specifically, when the first baffle 171 and the second baffle 172 are horizontally arranged, the upper surfaces of the first baffle 171 and the second baffle 172 are on the same horizontal plane, and the first baffle 171 and the second baffle 172 cover the air inlet of the inner cavity 11. Based on this, by adjusting the deflection angle of the first baffle 171 or the second baffle 172, openings of different sizes are formed by the first baffle 171 and the second baffle 172, thereby controlling the rate at which unfiltered gas enters the inner cavity 11. Furthermore, by adjusting the deflection angle of the first baffle 171... Rotating the first baffle 171 downwards and the second baffle 172 downwards creates a guide channel to the right end of the inner cavity 11. Rotating the first baffle 171 downwards and the second baffle 172 upwards creates a guide channel to the left end of the inner cavity 11, thereby controlling the direction of unfiltered gas entering the inner cavity 11 and allowing the gas to contact the filter bag 133 from different directions, thus improving the dust filtration efficiency of the bag filter. Furthermore, the first baffle 171 and the second baffle 172 can block floating dust at different tilt angles, allowing heavier dust to naturally settle into the ash hopper 2.

[0038] like Figures 1-3As shown, the bag filter provided in Embodiment 1 of this utility model, preferably, in order to achieve the rotation of the first baffle 171 around its left end by the second drive mechanism 173 and the rotation of the second baffle 172 around its right end by the third drive mechanism 174, specifically, the second drive mechanism 173 and the third drive mechanism 174 are motors; wherein, the bag filter body 1 is rectangular, the second drive mechanism 173 is fixed to the left end of the front side of the bag filter body 1, and the third drive mechanism 174 is fixed to the right end of the front side of the bag filter body 1. The output shafts of the drive mechanism 173 and the third drive mechanism 174 both face rearward. A first fixing hole and a second fixing hole are provided on the front side of the bag filter body 1. The output shaft of the second drive mechanism 173 passes through the first fixing hole and is fixed to the front end of the first baffle 171. The output shaft of the third drive mechanism 174 passes through the second fixing hole and is fixed to the front end of the second baffle 172. The motor is fixed to the front side of the bag filter body 1. The first baffle 171 and the second baffle 172 are fixed to the output shaft of the motor. The rotation of the output shaft of the motor controls the rotation of the first baffle 171 and the second baffle 172.

[0039] like Figure 1 As shown, in the bag filter provided in Embodiment 1 of this utility model, preferably, after the bag filter has been used for a long time, a lot of dust will be adsorbed on the side wall of the inner cavity 11 and the inner side wall of the ash hopper 2. In order to maintain the bag filter, it is necessary to remove the dust adsorbed on the side wall of the inner cavity 11 and the inner side wall of the ash hopper 2. For this purpose, a first elastic block 1711 is fixed on the upper plate surface of the first baffle 171, and a second elastic block 1721 is fixed on the lower plate surface of the second baffle 172.

[0040] Specifically, when the second drive mechanism 173 drives the first baffle 171 to rotate upward, the first elastic block 1711 strikes the side wall of the inner cavity 11, causing the inner cavity 11 to vibrate and shake off the dust on the side wall of the inner cavity 11; when the third drive mechanism 174 drives the second baffle 172 to rotate downward, the second elastic block 1721 strikes the inner wall of the ash hopper 2, causing the ash hopper 2 to vibrate and shake off the dust on the inner wall of the ash hopper 2; after the dust is shaken off, it falls into the bottom of the ash hopper 2, making it easy to collect manually; furthermore, the use of the first elastic block 1711 and the second elastic block 1721 can avoid damage to the inner cavity 11 or the ash hopper 2 during impact, thus extending the service life of the bag filter.

[0041] In summary, the bag filter provided by this utility model can solve the problem that when the existing technology uses a moving plate to control the brush bristles to clean the filter bags, the moving plate separates the filter bags, preventing some filter bags from immediately contacting the unfiltered gas and reducing the filtration efficiency of the filter bags. This invention improves the filtration efficiency of the filter bags during cleaning.

[0042] Those skilled in the art should understand that variations can be implemented by combining existing technology and the above embodiments, and will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here. The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art; any possible changes and modifications made by those skilled in the art without departing from the technical solution of this utility model, or modifications to equivalent embodiments with equivalent changes, do not affect the substantive content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A baghouse filter, characterized by The bag type dust collector comprises a bag type dust collector body and a dust hopper, the bag type dust collector body is provided with an inner cavity, the bag type dust collector body is located above the dust hopper, and the inner cavity is in communication with the top of the dust hopper. The dust hopper is provided with a feeding port, the top of the bag type dust collector body is provided with a discharging port, the discharging port is in communication with the inner cavity, the inner cavity is provided with a filtering assembly, the filtering assembly comprises a flower plate, a bag cage and a filter bag, the flower plate is horizontally arranged, the flower plate is fixed to the side wall of the inner cavity, the flower plate is located below the discharging port, the flower plate is provided with a ventilation hole, the bag cage is fixedly connected with the ventilation hole, and the bag cage is sleeved in the filter bag. The bag cage comprises a plurality of longitudinal ribs, a plurality of supporting rings and a plurality of annular scrapers, the longitudinal ribs are vertically arranged, the supporting rings are horizontally arranged, all the longitudinal ribs are arranged in a circumferential array, the supporting rings are fixed to the longitudinal ribs, all the supporting rings are arranged in a vertical direction, the annular scrapers are provided with a plurality of series connection holes, the longitudinal ribs are sleeved in the series connection holes, each annular scraper is located between two adjacent supporting rings, and the annular scraper is provided with an iron sheet. The inner cavity is further provided with an electromagnet and a first driving mechanism, the first driving mechanism and the electromagnet are located below the flower plate, the first driving mechanism drives the electromagnet to move in a vertical direction, and the electromagnet drives the annular scraper to move in a vertical direction.

2. The baghouse as defined in claim 1, wherein, The first driving mechanism comprises a linear guide rail and a pneumatic cylinder, the linear guide rail and the pneumatic cylinder are fixed to the side wall of the inner cavity, the linear guide rail is vertically arranged, the pneumatic cylinder is provided with a telescopic shaft which faces upward, the electromagnet is fixed to the sliding block of the linear guide rail, and the telescopic shaft of the pneumatic cylinder is fixed to the sliding block of the linear guide rail.

3. The baghouse as defined in claim 2 wherein, The inner cavity is further provided with a filtering cover, the filtering cover comprises a cover body, a filter screen and a fixed frame, the cover body is in the shape of a cuboid, the cover body is hollow, the cover body is provided with an opening which penetrates from the left side to the right side, the filter screen covers the left side of the opening, the fixed frame is fixedly connected to the right side of the opening, the first driving mechanism passes through the right side of the opening and is located in the cover body, and the fixed frame is detachably fixed to the side wall of the inner cavity.

4. The baghouse as defined in claim 1 wherein, The bag type dust collector further comprises a material control assembly, the material control assembly is located below the flower plate, the material control assembly comprises a first baffle, a second baffle, a second driving mechanism and a third driving mechanism, the first baffle is rotatably fixed to the left side wall of the inner cavity, the second baffle is rotatably fixed to the right side wall of the inner cavity, the second driving mechanism drives the first baffle to rotate with the left end of the first baffle as the center, and the third driving mechanism drives the second baffle to rotate with the right end of the second baffle as the center. When the first baffle and the second baffle are horizontally arranged, the upper plate surface of the first baffle and the upper plate surface of the second baffle are located on the same horizontal plane, and the first baffle and the second baffle cover the air inlet of the inner cavity.

5. The baghouse as defined in claim 4 wherein, The bag type dust collector body is cuboid; the second driving mechanism and the third driving mechanism are motors; the second driving mechanism is fixed to the left end of the front side of the bag type dust collector body; the third driving mechanism is fixed to the right end of the front side of the bag type dust collector body; the output shaft of the second driving mechanism and the output shaft of the third driving mechanism are both towards the back; the first fixed hole and the second fixed hole are arranged on the front side of the bag type dust collector body; the output shaft of the second driving mechanism is fixed to the front end of the first baffle through the first fixed hole; the output shaft of the third driving mechanism is fixed to the front end of the second baffle through the second fixed hole.

6. The baghouse as defined in claim 4 wherein, The upper plate surface of the first baffle is fixed with the first elastic block; the lower plate surface of the second baffle is fixed with the second elastic block; when the second driving mechanism drives the first baffle to rotate upwards, the first elastic block is in contact with the side wall of the inner cavity; when the third driving mechanism drives the second baffle to rotate downwards, the second elastic block is in contact with the inner wall of the ash bucket.

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