Dust recovery device based on biomass particle hot blast stove

Abstract

The dust recycling device comprises a collecting box, a filtering air inlet pipe is arranged at the top of the collecting box, dust discharging grooves are formed in the two sides of the collecting box, and a second dust box and a first dust box are symmetrically installed on the portions, located on the collecting box, of one sides of the dust discharging grooves; a dust box is installed in the second dust box, a connecting shaft rod is installed on the top of the inner side of the collecting box, and a reciprocating lead screw which is synchronously driven is installed at the bottom of the connecting shaft rod. A liftable structure is arranged on the cleaning scraping seat for reciprocating cleaning of the device, when the cleaning scraping seat cleans the inclined filter screen from the middle to the two sides, the cleaning scraping seat can normally make contact with the surface of the filter screen when falling, and when the cleaning scraping plate moves to reset to the middle and continues to fall, the cleaning scraping seat can be in contact with the surface of the filter screen under the action of a limiting linkage structure. And a cleaning scraping plate at the bottom of the cleaning scraping seat can fall down, so that the cleaning scraping plate is in contact with a filter screen, and the practicability of the device is improved while better cleaning is achieved and dust blockage is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of dust recovery, and in particular relates to a dust recovery device based on a biomass particle hot air furnace. Background Art

[0002] Biomass pellet hot air furnace is a thermal equipment that uses biomass pellet fuel to burn and generate high-temperature hot air. Its working principle is mainly based on the combustion process and energy conversion. In the industrial production process, a large amount of heat energy is required for heating, drying, smelting and other operations. Biomass pellet hot air furnace can provide a stable and reliable heat source to meet the needs of industrial production. Biomass pellet hot air furnace will produce a certain amount of dust during the combustion process. If these dusts are directly discharged into the atmosphere, they will pollute the environment, affect air quality, and may even be harmful to human health. Therefore, it is very necessary to recycle the dust generated by the biomass pellet hot air furnace, aiming to reduce dust emissions, protect the environment and improve resource utilization.

[0003] A hot blast furnace dust recovery device is disclosed in the patent with application number 202322101752.4. The application sets a separation component. The driving wheel drives the driven wheel to rotate through the transmission belt. The driven wheel drives the screw seat to reciprocate through the reciprocating screw. The screw seat drives the connecting plate to reciprocate through the sliding rod. The slider cooperates with the sliding groove to make the cleaning brush fit tightly with the filter plate. The connecting plate drives the cleaning brush to sweep the dust rod on the filter plate. On the one hand, the filter plate is prevented from being blocked and the filter plate is guaranteed to separate the dust in the heating air. On the other hand, the cleaning brush is coordinated with the through groove to achieve the separation of the dust in the heating air. Automatic collection of dust to reduce subsequent operations; in response to the above application, combined with the existing recovery and dust removal device, when the device in the above application is used for recovery and dust removal, when the cleaning scraper repeatedly cleans the surface of the filter, when the cleaning scraper moves to the bottom of the filter, during the resetting process, the dust that continues to fall on the filter will be swept to the middle part of the filter. After long-term use, it will cause dust accumulation and affect the filtering effect of the device, thereby affecting the practicability of the device. For this reason, we propose a dust recovery device based on a biomass particle hot air furnace. Summary of the invention

[0004] The purpose of the present invention is to provide a dust recovery device based on a biomass particle hot air furnace to solve the problem raised in the above background technology that when using the existing device for dust recovery and removal, when the cleaning scraper repeatedly cleans the surface of the filter, when the cleaning scraper moves to the bottom of the filter, during the resetting process, the dust that continues to fall on the filter will be swept to the middle part of the filter. After long-term use, dust will accumulate and affect the filtering effect of the device, thereby affecting the practicability of the device.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dust recovery device based on a biomass pellet hot air furnace, comprising a collecting box, a filtering air inlet pipe is arranged on the top of the collecting box, ash discharge grooves are opened on both sides of the collecting box, and one side of the ash discharge groove is located on the collecting box, and a dust box two and a dust box one are symmetrically installed, and a dust box is installed in the dust box two, a connecting shaft is installed on the inner top of the collecting box, a synchronously driven reciprocating screw is installed at the bottom of the connecting shaft, a cleaning scraper seat is installed at the bottom of the reciprocating screw, and a cleaning scraper is installed at the bottom of the cleaning scraper seat, a lifting and adjusting component for adjustment is arranged between the cleaning scraper seat and the cleaning scraper, and rack limit grooves for limiting the movement of the cleaning scraper seat are also arranged at both ends of the inner side of the collecting box.

[0006] Preferably, two reciprocating nut sleeves are symmetrically installed on the reciprocating screw rod, and the two reciprocating nut sleeves are installed by screwing in opposite directions, a liftable lifting limit rod is installed at the bottom of the reciprocating nut sleeve, the cleaning scraper seat is installed at the bottom of the lifting limit rod, and a screw is rotatably installed on the inner side of the cleaning scraper seat, gears are provided at both ends of the screw, and when the cleaning scraper seat moves, the gear engages with the rack limit groove, and the screw engages and rotates in the rack limit groove through the gear.

[0007] Preferably, a cleaning scraper strip is installed at the bottom of the cleaning scraper, a limit lifting plate is arranged on the top of the cleaning scraper strip, and a limit inclined groove is provided on the limit lifting plate.

[0008] Preferably, a limiting groove is provided on the inner side of the cleaning scraper seat, top blocks are symmetrically installed on the top of both sides of the limiting groove, and a sliding guide sleeve is provided on the screw rod in the limiting groove, limiting clamping rods are provided on both sides of the sliding guide sleeve, and limiting columns are installed on the top of the limiting clamping rod.

[0009] Preferably, a limit block is also installed on the top of the sliding guide sleeve, the limit block is penetrated by the limit column, and a return spring is arranged on the top of the limit block located on the limit column.

[0010] Preferably, a connecting rod is connected to the bottom of the limit block, and the connecting rod extends through and extends to the inner side of the sliding guide sleeve, and an arcuate threaded plate is installed. The bottom surface of the arcuate threaded plate is provided with threads, and when the sliding guide sleeve moves, it contacts the threads at the bottom of the arcuate threaded plate through the screw rod.

[0011] Preferably, stabilizing blocks are provided on both sides of the cleaning scraper seat, the cleaning scraper is installed on the bottom of the cleaning scraper seat through a limiting lifting plate, and the cleaning scraper and the cleaning scraper seat are controlled to move in a limiting inclined groove opened on the limiting lifting plate through a limiting clamping rod, and the limiting lifting plate is limited by the stabilizing block when lifting.

[0012] Preferably, a plurality of impellers are equidistantly mounted on the connecting shaft, and belts are mounted on both ends of the impeller and the reciprocating screw rod, and the reciprocating screw rod and the impeller are connected and driven by the belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) By providing a liftable structure on the cleaning scraper seat used for reciprocating cleaning of the device, when the device is used for dust recovery, if the cleaning scraper seat is moved to the bottom of the filter screen by the drive of the reciprocating screw rod during cleaning, during the resetting process, through the action of the provided limit lifting structure, when the cleaning scraper seat cleans the inclined filter screen from the middle to both sides, the cleaning scraper seat can normally contact the surface of the filter screen when it falls. When the cleaning scraper seat is reset from both sides to the middle, the cleaning scraper at the bottom of the cleaning scraper seat can be lifted to a certain height through the linkage drive to prevent the cleaning scraper from sweeping the dust falling on the filter screen to the middle, so as to better clean. At the same time, when the cleaning scraper moves to the middle and continues to fall, the limit linkage structure can make the cleaning scraper at the bottom of the cleaning scraper seat fall, so that the cleaning scraper contacts the filter screen, so as to better clean the dust on the filter screen, avoid dust clogging, and improve the filtering effect of the filter screen, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the collection box of the present invention;

[0017] Figure 3 It is a schematic diagram of the installation structure of the cleaning scraper seat and the cleaning scraper of the present invention from the left side;

[0018] Figure 4 A schematic diagram of the internal structure of the cleaning scraper seat of the present invention;

[0019] Figure 5 It is a schematic diagram of the left side cross-sectional structure of the screw rod and the sliding guide sleeve of the present invention;

[0020] In the figure: 100, collecting box; 101, filter air inlet pipe; 102, dust box one; 103, dust box two; 104, dust box; 105, dust discharge slot; 106, reciprocating screw rod; 107, connecting shaft rod; 108, fan impeller; 109, belt; 110, filter screen; 200, cleaning scraper seat; 201, lifting limit rod; 202, reciprocating nut sleeve; 203, gear; 20 4. Rack limit groove; 205. Cleaning scraper; 206. Cleaning scraper; 207. Limit lifting plate; 208. Limit inclined groove; 209. Stabilizing block; 210. Limiting clamping rod; 211. Screw; 212. Limiting groove; 213. Sliding guide sleeve; 214. Limiting block; 215. Limiting column; 216. Reset spring; 217. Top block; 218. Arc threaded plate; 219. Connecting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The present invention provides a technical solution: dust recovery of a biomass particle hot blast furnace is a comprehensive environmental protection measure. Through reasonable dust recovery and treatment measures, not only can the pollution of dust to the environment be reduced, but also resource utilization can be improved and production costs can be reduced. A dust recovery device based on a biomass particle hot blast furnace includes a collecting box 100, a filtering air inlet pipe 101 is fixedly installed on the top of the collecting box 100, and dust discharge grooves 105 are opened on both sides of the collecting box 100. A dust box 2 103 and a dust box 1 102 are symmetrically fixedly installed on one side of the collecting box 100, and the dust box 2 103 and the dust box 1 102 are fixedly installed on the one side of the collecting box 100. 02 has the same structure, and the two dust boxes can better discharge and collect dust, and a dust box 104 is installed in the dust box 103, and the dust box 104 is installed by bolt sealing. A rotatable connecting shaft 107 is installed on the inner top of the collection box 100, and a synchronously driven reciprocating screw 106 is installed on the bottom of the connecting shaft 107. A cleaning scraper seat 200 is installed at the bottom of the reciprocating screw 106, and a cleaning scraper plate 205 is installed at the bottom of the cleaning scraper seat 200. A lifting and lowering adjustment component for adjustment is arranged between the cleaning scraper seat 200 and the cleaning scraper plate 205, and two ends of the inner side of the collection box 100 are also provided with a lifting and lowering adjustment component for adjusting the cleaning scraper seat 200. The scraper seat 200 is provided with a rack limit groove 204 for limiting movement. When the dust filtering and recycling device in the application is used, the filter air inlet pipe 101 on the collection box 100 is connected to the air outlet of the hot blast furnace. The gas generated after the hot blast furnace burns enters the interior of the collection box 100 through the filter air inlet pipe 101. When the gas enters the interior of the collection box 100, the air flow blows the wind impeller 108 on the top of the inner side of the collection box 100 to rotate. When the wind impeller 108 rotates, it drives the connecting shaft 107 to rotate. The rotating connecting shaft 107 drives the reciprocating screw rod 106 to rotate through the belt 109. At the same time, when the reciprocating screw rod 106 rotates, The reciprocating thread drives the reciprocating nut sleeve 202 to move, and when the reciprocating nut sleeve 202 moves, it drives the lifting limit rod 201 to move, and drives the cleaning scraper seat 200 at the bottom of the lifting limit rod 201 to move synchronously, and when the cleaning scraper seat 200 moves, the two ends engage and move in the rack limit groove 204 through the gear 203. At the same time, when the cleaning scraper seat 200 moves, the rack limit groove 204 is used to limit the cleaning scraper seat 200, so that the cleaning scraper seat 200 is lifted and lowered through the lifting limit rod 201, thereby ensuring that the cleaning scraper plate 205 at the bottom of the cleaning scraper seat 200 is always in contact with the filter screen 110, so that the filter screen 110 is cleaned by the cleaning scraper plate 205.

[0024] Specifically, two reciprocating nut sleeves 202 are symmetrically installed on the reciprocating screw 106, and the two reciprocating nut sleeves 202 are installed by screw thread opposite to each other. When the reciprocating screw 106 rotates, the two reciprocating nut sleeves 202 can be driven to move in opposite directions or toward each other. A lift limit rod 201 that can be lifted and lowered is installed at the bottom of the reciprocating nut sleeve 202. The cleaning scraper seat 200 is installed at the bottom of the lift limit rod 201, and a screw rod 211 is rotatably installed on the inner side of the cleaning scraper seat 200. Gears 203 are fixedly installed at both ends of the screw rod 211. When the cleaning scraper seat 200 moves, the gear 203 is meshed with the rack limit groove 204, and the screw rod 211 is engaged with the rack limit groove 204 through the gear 203. The cleaning scraper 205 meshes and rotates in the rack limit groove 204. A cleaning scraper strip 206 is fixedly installed at the bottom of the cleaning scraper 205. An integrated limit lifting plate 207 is provided on the top of the cleaning scraper 205. An inclined limit inclined groove 208 is provided on the limit lifting plate 207. A plurality of wind impellers 108 are equidistantly installed on the connecting shaft 107. Belts 109 are installed at both ends of the wind impeller 108 and the reciprocating screw rod 106. The reciprocating screw rod 106 and the wind impeller 108 are connected and driven by the belt 109. When the cleaning scraper seat 200 moves to both sides, the reciprocating screw rod 106 that continues to rotate will drive the cleaning scraper seat 200 to move toward the center. When moving, the cleaning scraper seat The gears 203 at both ends of 200 mesh with the racks at the bottom of the inner side of the rack limiting groove 204, so that the screw 211 inside the cleaning scraper seat 200 is driven to rotate through the gear 203. When the screw 211 rotates, the return spring 216 on the limiting column 215 pushes the limiting block 214 down through the push-back effect generated by deformation. The limiting block 214 pushes the arc-shaped threaded plate 218 inside the sliding guide sleeve 213 to contact the screw 211 through the connecting rod 219. When the arc-shaped threaded plate 218 contacts the screw 211, the sliding guide sleeve 213 is driven to move to the other side of the limiting groove 212 through the thread. When the sliding guide sleeve 213 moves, it is connected to the limiting clamp rod 210 and the limiting clamp rod 210. The limiting inclined groove 208 opened on the limiting lifting plate 207 is limited, so that the cleaning scraper 205 is lifted to a certain height to prevent the cleaning scraper 205 from cleaning the filter screen 110 when the cleaning scraper seat 200 moves from both sides to the center, and when the sliding guide sleeve 213 moves to the other side of the limiting groove 212, one side of the limiting block 214 contacts with the top block 217, and the limiting block 214 is lifted up by the inclined surface on the top block 217. At the same time, the limiting block 214 lifts the arc threaded plate 218 through the connecting rod 219, thereby separating the arc threaded plate 218 and the screw 211 in threaded engagement, to prevent the sliding guide sleeve 213 from getting stuck when the screw 211 continues to rotate.

[0025] Example 2

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The present invention provides a technical solution: a dust recovery device based on a biomass particle hot air furnace, a limiting groove 212 is provided on the inner side of the cleaning scraper seat 200, and top blocks 217 are symmetrically fixedly installed on the tops of both sides of the limiting groove 212, and an inclined surface parallel to the limiting block 214 is provided on the top block 217, and a sliding guide sleeve 213 is sleeved and installed on the screw rod 211 in the limiting groove 212, and an integrated limiting clamping rod 210 is provided on both sides of the sliding guide sleeve 213, and a limiting column 215 is fixedly installed on the top of the limiting clamping rod 210. When the cleaning scraper seat 200 moves to the center, the reciprocating screw rod 106 continues to rotate to drive the cleaning scraper seat 200 to move to both sides, and the sliding guide sleeve 213 moves to one side in the limiting groove 212, and at the same time, through the limiting clamping rod 2 10 and the limiting action of the limiting inclined groove 208 drive the limiting lifting plate 207 to descend, and the limiting lifting plate 207 is limited by the stabilizing block 209 when it is lifted or lowered, thereby ensuring that when the cleaning scraper seat 200 moves from the middle to both sides, the cleaning scraper 205 is lowered to contact the surface of the filter 110, so as to better scrape and clean the dust. The scraped and cleaned dust is discharged into the dust boxes on both sides through the dust discharge groove 105, and is recovered through the dust box 104 installed in the dust box, which is convenient for recycling. While the structure is used for better cleaning, it can also prevent the dust from being cleaned and accumulated at the top center of the filter 110 during the cleaning process. While better cleaning, it can also prevent the filtering effect from being affected, thereby improving the practicability of the device.

[0027] Specifically, a limit block 214 is also installed on the top of the sliding guide sleeve 213. The limit block 214 is penetrated and limited by the limit column 215. At the top of the limit block 214, a return spring 216 is sleeved and installed on the limit column 215. A connecting rod 219 is fixedly connected to the bottom of the limit block 214, and the connecting rod 219 penetrates and extends to the inner side of the sliding guide sleeve 213 to install an arc-shaped threaded plate 218. The bottom surface of the arc-shaped threaded plate 218 is provided with threads. When the sliding guide sleeve 213 moves, the screw rod 211 and the arc-shaped threaded plate 218 are connected. The bottom of the cleaning scraper seat 200 is in threaded contact. Specifically, stabilizing blocks 209 are provided on both sides of the cleaning scraper seat 200. The cleaning scraper 205 is installed on the bottom of the cleaning scraper seat 200 through a limiting lifting plate 207. The cleaning scraper 205 and the cleaning scraper seat 200 are moved and controlled to rise and fall in a limiting inclined groove 208 opened on the limiting lifting plate 207 through a limiting clamping rod 210. The limiting lifting plate 207 is limited by the stabilizing block 209 during lifting and falling, which ensures the stability of the cleaning scraper 205 and can better adjust the lifting and falling of the cleaning scraper 205.

[0028] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust recovery device based on a biomass particle hot air furnace, comprising a collection box (100), wherein a filter air inlet pipe (101) is arranged on the top of the collection box (100), characterized in that: Dust discharge grooves (105) are provided on both sides of the collection box (100), and a dust box (103) and a dust box (102) are symmetrically installed on one side of the dust discharge groove (105) on the collection box (100), and a dust box (104) is installed in the dust box (103). A connecting shaft (107) is installed on the top of the inner side of the collection box (100), and a synchronously driven reciprocating shaft (107) is installed at the bottom of the connecting shaft (107). A screw rod (106), a cleaning scraper seat (200) is installed at the bottom of the reciprocating screw rod (106), and a cleaning scraper plate (205) is installed at the bottom of the cleaning scraper seat (200), a lifting adjustment component for adjustment is arranged between the cleaning scraper seat (200) and the cleaning scraper plate (205), and rack limiting grooves (204) for limiting the movement of the cleaning scraper seat (200) are also arranged at both ends of the inner side of the collection box (100).

2. The dust recovery device based on the biomass particle hot air furnace according to claim 1 is characterized in that: Two reciprocating nut sleeves (202) are symmetrically mounted on the reciprocating screw rod (106), and the two reciprocating nut sleeves (202) are installed by screw threading in opposite directions. A lifting limit rod (201) that can be lifted and lowered is installed at the bottom of the reciprocating nut sleeve (202). The cleaning scraper seat (200) is installed at the bottom of the lifting limit rod (201), and a screw rod (211) is rotatably mounted on the inner side of the cleaning scraper seat (200). Gears (203) are arranged at both ends of the screw rod (211). When the cleaning scraper seat (200) moves, the gear (203) meshes with the rack limit groove (204), and the screw rod (211) meshes and rotates in the rack limit groove (204) through the gear (203).

3. The dust recovery device based on the biomass particle hot air furnace according to claim 1 is characterized in that: A cleaning strip (206) is installed at the bottom of the cleaning scraper (205), and a limit lifting plate (207) is arranged on the top of the cleaning scraper (205), and a limit inclined groove (208) is provided on the limit lifting plate (207).

4. The dust recovery device based on the biomass particle hot air furnace according to claim 2 is characterized in that: A limiting groove (212) is provided on the inner side of the cleaning scraper seat (200), top blocks (217) are symmetrically mounted on the tops of both sides of the limiting groove (212), and a sliding guide sleeve (213) is arranged on the screw rod (211) in the limiting groove (212), limiting clamping rods (210) are arranged on both sides of the sliding guide sleeve (213), and limiting posts (215) are mounted on the tops of the limiting clamping rods (210).

5. The dust recovery device based on the biomass particle hot air furnace according to claim 4 is characterized in that: A limit block (214) is also installed on the top of the sliding guide sleeve (213), the limit block (214) is penetrated by the limit column (215), and a return spring (216) is arranged on the top of the limit block (214) located on the limit column (215).

6. The dust recovery device based on the biomass particle hot air furnace according to claim 5 is characterized in that: The bottom of the limit block (214) is connected to a connecting rod (219), and the connecting rod (219) extends through and extends to the inner side of the sliding guide sleeve (213) and is installed with an arc-shaped threaded plate (218). The bottom surface of the arc-shaped threaded plate (218) is provided with threads, and when the sliding guide sleeve (213) moves, the screw rod (211) contacts the threads at the bottom of the arc-shaped threaded plate (218).

7. The dust recovery device based on the biomass particle hot air furnace according to claim 1 is characterized in that: Stabilizing blocks (209) are provided on both sides of the cleaning scraper seat (200); the cleaning scraper (205) is installed at the bottom of the cleaning scraper seat (200) via a limiting lifting plate (207); and the cleaning scraper (205) and the cleaning scraper seat (200) are moved and controlled to rise and fall in a limiting inclined groove (208) provided on the limiting lifting plate (207) via a limiting clamping rod (210); and the limiting lifting plate (207) is limited by the stabilizing blocks (209) when rising and falling.

8. The dust recovery device based on the biomass particle hot air furnace according to claim 1 is characterized in that: A plurality of impellers (108) are equidistantly mounted on the connecting shaft (107), and belts (109) are mounted at both ends of the impellers (108) and the reciprocating screw rod (106), and the reciprocating screw rod (106) and the impellers (108) are connected and driven via the belts (109).

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