Building construction crusher with auxiliary dust falling function

Abstract

The invention discloses a building construction crusher with an auxiliary dust falling function, and relates to the technical field of crushers. When building materials are crushed, due to impact on the materials, the materials are crushed into smaller sizes, meanwhile, splashing dust is formed, at the moment, the dust is not limited, the dust is diffused all around, and the working environment is influenced, a spiral plate is matched with a sieve pore plate, in the high-speed rotating process, the spiral plate drives air in a crushing bin to move into a dust removal mechanism, and the dust removal effect is improved. When moving, dust formed by crushing is driven to move together, so that air is discharged by a dust removal mechanism, and meanwhile, the air at the feeding position and the discharging position flows into the crushing bin and drives the dust at the feeding position and the discharging position to enter the crushing bin together due to the pressure difference formed after internal air is guided out of the dust at the feeding position and the discharging position of the crushing bin, so that the dust at the feeding position and the discharging position enters the crushing bin together during crushing. And the formed dust is collected in a centralized manner, so that the broken dust is prevented from being unlimited and diffusing all around.

Description

Technical Field

[0001] The invention relates to the technical field of crushers, in particular to a crusher for construction with an auxiliary dust reduction function. Background Art

[0002] In urban renewal and old building demolition projects, construction waste is converted into recycled aggregates through crushing, which are used to produce recycled bricks, recycled concrete, etc., to achieve resource recycling and reduce dependence on natural aggregates. The crushed aggregates are mixed with cement, water, etc. in a certain proportion to produce concrete of different strength grades to meet the requirements of building structures. At the same time, limestone, granite, basalt and other rocks are crushed to produce gravel and sand for construction. Construction waste is crushed to achieve resource recycling and produce recycled aggregates for concrete production, road base paving, etc. When crushing building materials, the impact on the materials causes them to break into smaller volumes, while generating flying dust. At this time, the dust is not restricted, causing it to spread all around, affecting the working environment. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: A construction crusher with auxiliary dust reduction function, comprising: A frame, a crushing chamber is fixedly installed on the top of the frame, and a motor is fixedly installed on the outside of the crushing chamber; A crushing mechanism, which is used to cooperate with the crushing bin to crush and guide the dust in the crushing process, the crushing mechanism is installed inside the crushing bin, and one end of the crushing mechanism is connected to the output end of the motor; A dust removal mechanism, which is used to collect crushing dust discharged from the crushing mechanism, and is installed on a side of the crushing bin away from the motor; The crushing mechanism includes a transmission shaft, both ends of the outer side of the transmission shaft are equipped with bearings, the transmission shaft is rotatably connected to the inner wall of the crushing bin through the bearings, and one end of the transmission shaft is connected to the output end of the motor, a shaft cylinder is fixedly installed at the center of the outer side of the transmission shaft, and a spiral plate is fixedly installed at the center of the outer side of the shaft cylinder, and the spiral plate cooperates with the sieve plate. During the high-speed rotation process, the spiral plate drives the air in the crushing bin to move into the dust removal mechanism, and at the same time drives the crushed dust to move together, so that the air is discharged by the dust removal mechanism, and at the same time, the crushing bin The pressure difference formed by the dust at the feed and discharge positions after the internal air is discharged causes the air at the feed and discharge positions to flow into the crushing bin, driving the dust at the feed and discharge positions into the crushing bin together, so that the dust formed during crushing is collected centrally to prevent the crushed dust from spreading around without restriction. The spiral plates are evenly installed along the center of the shaft cylinder, and fixing rings are fixedly installed at both ends of the outer side of the shaft cylinder. A support frame is fixedly installed on the outer side of the fixing ring, and the support frames are evenly installed along the center of the fixing ring, and sieve plates are fixedly installed between the support frames.

[0004] Preferably, the sieve plate is located at the outside of the spiral plate, and end rings are fixedly installed on the top of both sides of the support frame, and support beams are fixedly installed between the end rings. The support beams cooperate with the sieve plate. During the crushing process, the circulation of air and dust is guaranteed through the sieve plate. At the same time, the support beams cooperate with the sieve plate to provide support inside the sieve plate. While ensuring the circulation gap, the pressure-bearing range of the sieve plate is increased to avoid damage to the sieve plate by splashing materials during crushing, thereby ensuring the smooth progress of crushing and dust removal. The support beams are evenly installed along the center of the end rings, and the outer side of the support beams is tightly fitted with the inner wall of the sieve plate. A rotation slot block is fixedly connected to the side of the support frame away from the fixed ring, and rotation slots are evenly opened on the outer side of the rotation slot block, and a breaking hammer is rotatably installed at the rotation slot of the rotation slot block.

[0005] Preferably, the crushing bin includes a bin barrel, which is fixedly installed on the top of the frame, and side cover plates and through-groove plates are fixedly installed at both ends of the inner wall of the bin barrel, and the side cover plates and the through-groove plates are symmetrically installed along the center position of the axis of the bin barrel, and the center position of the outer side of the side cover plate is fixedly connected to the motor, and the center position of the outer side of the through-groove plate is evenly opened with arc-shaped through grooves, and the arc-shaped through grooves evenly opened at the center position of the outer side of the through-groove plate provide a discharge space for dust generated by the crushing work, so that the dust can be smoothly discharged from the crushing bin and enter the dust removal mechanism for collection, and the center position of the outer side of the through-groove plate is fixedly connected to the inner wall of the dust removal mechanism.

[0006] Preferably, a feed cylinder is fixedly installed on one side of the top of the silo, the top of the feed cylinder is inclined toward the other side of the silo, a discharge cylinder is fixedly installed on the bottom of the silo, an arc-shaped plate is fixedly connected to one side of the inner wall of the silo, a crushing plate is fixedly connected to the side of the arc-shaped plate close to the crushing mechanism, and the width of the crushing plate gradually decreases as it approaches the crushing mechanism. By cooperating between the crushing plate and the crushing hammer, the gradually decreasing width of the crushing plate as it approaches the crushing mechanism is utilized to reduce the contact area with the material, so that when the material is impacted by the crushing hammer and rushes to the crushing plate, the contact time is increased. The pressure is high, so that the material can be smoothly secondary crushed after contacting the crushing plate, thereby improving the crushing effect, and the crushing plate is evenly installed along the center position of the arc plate, and inner ring plates are fixedly installed on both sides of the arc plate. The inner ring plate cooperates with the side cover plate and the through-slot plate to form a double-layer structure on both sides to prevent the material from directly contacting the through-slot plate and the side cover plate when it is broken and splashed, causing damage to the outermost shell, and making the splashed material easily fly out of the equipment. At the same time, the double-layer structure assists the dust removal mechanism and the crushing mechanism, so that the dust can smoothly enter the dust removal mechanism, thereby improving the dust prevention effect, and the opposite surface of the inner ring plate is tightly fitted with the non-opposite surface of the end ring.

[0007] Preferably, the dust removal mechanism includes a fixed cover, the fixed cover is fixedly installed at the center position of the outer side of the through-slot plate, and a sealing plate is fixedly installed at one end of the fixed cover away from the through-slot plate, and a rubber gasket is fixedly installed between the sealing plate and the fixed cover, the inner wall of the sealing plate is fixedly connected to a grille tube, the end of the grille tube close to the through-slot plate is fixedly connected to the outer side of the through-slot plate, and the outer diameter of the grille tube gradually increases in the process of gradually approaching the sealing plate, the outer side of the grille tube is evenly provided with grille grooves, and the center position of the outer side of the grille tube is fixedly installed There is a dust filter bag, and an inner barrier cover is fixedly installed on the side of the outer side of the grille tube close to the through-slot plate. The inner barrier cover cooperates with the outer barrier cover, and after the dust passes through the through-slot plate, it quickly enters the grille tube and the fixed cover. At the same time, the outer barrier cover cooperates with the inner barrier cover to block larger particles to avoid direct impact on the dust filter bag, causing damage and affecting the dust removal effect of the equipment when it is working. An outer barrier cover is fixedly installed on the side of the inner wall of the fixed cover close to the through-slot plate. The outer barrier cover is a conical cover with a smaller outer diameter as it moves away from the through-slot plate, and the inner barrier cover is a conical cover with a larger outer diameter as it moves away from the through-slot plate.

[0008] The present invention provides a construction crusher with auxiliary dust reduction function. It has the following beneficial effects: 1. The construction crusher with auxiliary dust reduction function cooperates with the spiral plate and the sieve plate. During the high-speed rotation, the spiral plate drives the air in the crushing bin to move into the dust removal mechanism, and at the same time drives the dust formed by the crushing to move together, so that the air is discharged by the dust removal mechanism. At the same time, the dust at the feeding and discharging positions of the crushing bin, after the internal air is discharged, the pressure difference formed makes the air at the feeding position and the discharging position flow into the crushing bin, driving the dust at the feeding and discharging positions into the crushing bin together, so that the dust formed during the crushing is collected centrally to prevent the crushed dust from being unrestricted and spreading around.

[0009] 2. The construction crusher with auxiliary dust reduction function cooperates with the sieve plate through the support beam. During the crushing process, the circulation of air and dust is guaranteed through the sieve plate. At the same time, the support beam cooperates with the sieve plate to provide support inside the sieve plate. While ensuring the circulation gap, the pressure-bearing range of the sieve plate is increased to avoid damage to the sieve plate by splashing materials during crushing, thereby ensuring the smooth progress of crushing and dust removal.

[0010] 3. The construction crusher with auxiliary dust reduction function cooperates with the crushing plate and the crushing hammer, and utilizes the gradually decreasing width of the crushing plate when approaching the crushing mechanism to reduce the contact area with the material. When the material is impacted by the crushing hammer and rushes to the crushing plate, the contact pressure is increased, so that the material can be smoothly crushed for the second time after contacting the crushing plate, thereby improving the crushing effect.

[0011] 4. The construction crusher with auxiliary dust reduction function forms a double-layer structure on both sides through the inner ring plate, the side cover plate and the through-slot plate to prevent the material from directly contacting the through-slot plate and the side cover plate when it is broken and splashed, causing damage to the outermost shell, making the splashed material easy to fly out of the equipment. At the same time, the double-layer structure assists the dust removal mechanism and the crushing mechanism, allowing the dust to smoothly enter the dust removal mechanism, thereby improving the dust prevention effect.

[0012] 5. The construction crusher with auxiliary dust reduction function cooperates with the inner and outer shields. After the dust passes through the slot plate, it quickly enters the grille tube and the fixed cover. At the same time, the outer and inner shields cooperate with each other to block larger particles to avoid direct impact on the dust filter bag, causing damage and affecting the dust removal effect when the equipment is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a construction crusher with auxiliary dust reduction function according to the present invention; Figure 2 It is a partial structural schematic diagram of a construction crusher with auxiliary dust reduction function according to the present invention; Figure 3 It is a schematic diagram of the position structure of the crushing bin and the crushing mechanism of the present invention; Figure 4 It is a partial structural schematic diagram of the crushing chamber of the present invention; Figure 5 It is a structural schematic diagram of the crushing mechanism of the present invention; Figure 6 It is a partial structural schematic diagram of the crushing mechanism of the present invention; Figure 7 It is a partial structural side view of the crushing mechanism of the present invention; Figure 8 It is a structural schematic diagram of the dust removal mechanism of the present invention; Fig. 9 It is a structural dissection diagram of the dust removal mechanism of the present invention.

[0014] In the figure: 1, frame; 2, crushing bin; 3, crushing mechanism; 4, dust removal mechanism; 5, motor; 21, bin tube; 22, side cover plate; 23, discharge tube; 24, inner ring plate; 25, feed tube; 26, through-slot plate; 27, arc plate; 28, crushing plate; 301, transmission shaft; 302, bearing; 303, end ring; 304, swivel block; 305, breaker; 306, sieve plate; 307, support beam; 308, support frame; 309, shaft tube; 310, fixed ring; 311, spiral plate; 41, fixed cover; 42, sealing plate; 43, grille tube; 44, rubber gasket; 45, outer cover; 46, inner cover; 47, dust filter bag. DETAILED DESCRIPTION

[0015] 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.

[0016] The first embodiment, as Figure 1 to Figure 2 and Figures 5 to 7 As shown, the present invention provides a technical solution: A construction crusher with auxiliary dust reduction function, comprising: A frame 1, a crushing chamber 2 is fixedly installed on the top of the frame 1, and a motor 5 is fixedly installed on the outside of the crushing chamber 2; A crushing mechanism 3, which is used to cooperate with the crushing bin 2 to crush and guide dust during the crushing process. The crushing mechanism 3 is installed inside the crushing bin 2, and one end of the crushing mechanism 3 is connected to the output end of the motor 5; A dust removal mechanism 4, which is used to collect the crushing dust discharged by the crushing mechanism 3, and is installed on a side of the crushing bin 2 away from the motor 5; The crushing mechanism 3 includes a transmission shaft 301, bearings 302 are installed at both ends of the outer side of the transmission shaft 301, the transmission shaft 301 is rotatably connected to the inner wall of the crushing chamber 2 through the bearings 302, and one end of the transmission shaft 301 is connected to the output end of the motor 5, a shaft cylinder 309 is fixedly installed at the center position of the outer side of the transmission shaft 301, a spiral plate 311 is fixedly installed at the center position of the outer side of the shaft cylinder 309, and the spiral plate 311 is evenly installed along the center position of the shaft cylinder 309. The motor 5 drives the shaft cylinder 309 to rotate through the transmission shaft 301, and the rotating shaft cylinder 309 is connected to the support frame 308 through the fixing ring 310. Rotate so that the support frame 308 drives the breaker 305 through the chute block 304 during high-speed rotation, so that the breaker 305 hammers the incoming material during rotation, breaks the material by hammering, and drives the material through the impact force during hammering, so that the material rushes to the inner wall of the crushing bin 2 under the action of its own inertia. Fixed rings 310 are fixedly installed at both ends of the outer side of the shaft cylinder 309, and the outer side of the fixed ring 310 is fixedly installed with a support frame 308. The support frames 308 are evenly installed along the center position of the fixed ring 310, and sieve plates 306 are fixedly installed between the support frames 308.

[0017] The sieve plate 306 is located on the outside of the spiral plate 311, and the tops of both sides of the support frame 308 are fixedly installed with end rings 303, and support beams 307 are fixedly installed between the end rings 303. The support beams 307 are evenly installed along the center of the end rings 303, and the outer side of the support beams 307 is tightly fitted with the inner wall of the sieve plate 306. During the crushing process, the sieve plate 306 is used to block the introduced material, and at the same time, the spiral plate 311 is rotated downward by the belt of the shaft cylinder 309, so that the spiral plate 311 drives the air in the crushing bin 2 to move into the dust removal mechanism 4 during the rotation process. While the air is moving, the dust and debris generated by the crushed material are driven through the sieve plate 306 and introduced into the dust removal mechanism 4. The support frame 308 is fixedly connected to a rotating groove block 304 on one side away from the fixed ring 310. The outer side of the rotating groove block 304 is evenly provided with rotating grooves, and the rotating grooves of the rotating groove block 304 are rotatably installed with a crushing hammer 305.

[0018] The second embodiment is based on the first embodiment. Figure 3 to Figure 4 As shown, The crushing bin 2 includes a bin barrel 21, which is fixedly installed on the top of the frame 1, and side cover plates 22 and through-slot plates 26 are fixedly installed at both ends of the inner wall of the bin barrel 21. The side cover plates 22 and the through-slot plates 26 are symmetrically installed along the center position of the axis of the bin barrel 21. During the crushing process, the inner ring plate 24 cooperates with the crushing mechanism 3 to concentrate the materials on the outside of the sieve plate 306 during crushing, and the inner ring plate 24 cooperates with the through-slot plate 26 and the side cover plates 22 to form a double-layer structure on both sides. The center position of the outer side of the side cover plate 22 is fixedly connected to the motor 5, and the center position of the outer side of the through-slot plate 26 is evenly provided with arc-shaped through slots, and the center position of the outer side of the through-slot plate 26 is fixedly connected to the inner wall of the dust removal mechanism 4.

[0019] A feeding cylinder 25 is fixedly installed on one side of the top of the silo 21, and the top of the feeding cylinder 25 is inclined toward the other side of the silo 21. A discharging cylinder 23 is fixedly installed on the bottom of the silo 21. An arc plate 27 is fixedly connected to one side of the inner wall of the silo 21, and a crushing plate 28 is fixedly connected to the side of the arc plate 27 close to the crushing mechanism 3. The width of the crushing plate 28 gradually decreases as it approaches the crushing mechanism 3. Through the cooperation of the feeding cylinder 25 and the silo 21, during the feeding process, the worker guides the material into the feeding cylinder 25, so that the material slides into the silo 21 along the feeding cylinder 25 under the action of its own gravity. When crushing, the material is crushed by the arc plate The crushing plates 28 evenly installed on one side of the crushing mechanism 3 cooperate with the crushing mechanism 3. During the high-speed rotation of the crushing mechanism 3, the material is crushed and then driven to impact in the direction of the crushing plate 28 under its own inertia. The pressure between the material and the crushing plate 28 during contact cooperates with the change in the width of the crushing plate to reduce the contact area during contact and increase the pressure during contact, so that the material is crushed again. The crushing plates 28 are evenly installed along the center position of the arc plate 27. Inner ring plates 24 are fixedly installed on both sides of the arc plate 27. The opposite surface of the inner ring plate 24 is tightly fitted with the non-opposite surface of the end ring 303.

[0020] The third embodiment is based on the first and second embodiments. Figures 8 to 9As shown, the dust removal mechanism 4 includes a fixed cover 41, which is fixedly installed at the center position of the outer side of the through-slot plate 26, and a sealing plate 42 is fixedly installed at one end of the fixed cover 41 away from the through-slot plate 26, and a rubber gasket 44 is fixedly installed between the sealing plate 42 and the fixed cover 41. The crushing mechanism 3 and the crushing bin 2 are coordinated with the grille tube 43 and the fixed cover 41, so that the spiral plate 311 drives the dust formed by crushing to pass through the through slot of the through-slot plate 26 and enter between the fixed cover 41 and the grille tube 43. The inner wall of the sealing plate 42 is fixedly connected with the grille tube 43, and the end of the grille tube 43 close to the through-slot plate 26 is fixedly connected to the outer side of the through-slot plate 26, and the outer diameter of the grille tube 43 gradually increases as it gradually approaches the sealing plate 42. Grille grooves are evenly opened on the outer side of the grille tube 43, and a protective The dust filter bag 47 and the inner baffle 46 are fixedly installed on the side of the outer side of the grille tube 43 near the through-slot plate 26, and the outer baffle 45 is fixedly installed on the side of the inner wall of the fixed cover 41 near the through-slot plate 26. After the dust is driven by the spiral plate 311 to pass through the through-slot plate 26, it first enters the circulation space between the outer baffle 45 and the inner baffle 46. The outer diameters of the inner baffle 46 and the outer baffle 45 change, so that the circulation gap is gradually reduced, and the air flow rate passing through the through-slot plate 26 is accelerated, driving the dust to enter between the fixed cover 41 and the grille tube 43, and then the grille tube 43 cooperates with the dust filter bag 47 to make the air pass through the dust filter bag 47, and the dust is blocked and stays between the grille tube 43 and the fixed cover 41 for collection. The outer baffle 45 is a conical cover with a smaller outer diameter away from the through-slot plate 26, and the inner baffle 46 is a conical cover with a larger outer diameter away from the through-slot plate 26.

[0021] When in use, a worker guides the crushed material into the crushing bin 2, and the motor 5 drives the crushing mechanism 3 to rotate at a high speed, so that the high-speed rotating crushing mechanism 3 impacts the material entering the crushing bin 2 to crush the material. At the same time, the material after the impact rushes to the crushing bin 2 under the action of inertia, so that the crushing bin 2 and the crushing mechanism 3 cooperate to crush. At the same time, in the process of crushing, the high-speed rotating crushing mechanism 3 drives the dust formed by the crushing to move to the dust removal mechanism 4, and the dust is collected by the dust removal mechanism 4.

[0022] In the crushing mechanism 3, the motor 5 drives the shaft cylinder 309 to rotate through the transmission shaft 301, and the rotating shaft cylinder 309 rotates with the support frame 308 through the fixing ring 310, so that the support frame 308 drives the crushing hammer 305 through the rotating groove block 304 during the high-speed rotation, so that the crushing hammer 305 hammers the incoming material during the rotation, crushes the material by hammering, and drives the material by the impact force during the hammering, so that the material rushes to the inner wall of the crushing bin 2 under the action of its own inertia. At the same time, during the crushing process, the introduced material is blocked by the sieve plate 306, and at the same time, the spiral plate 311 is rotated under the drive of the shaft cylinder 309, so that during the rotation of the spiral plate 311, the air in the crushing bin 2 is driven to move into the dust removal mechanism 4, and the dust and debris generated by the crushed material are driven to pass through the sieve plate 306 and introduced into the dust removal mechanism 4.

[0023] In the crushing bin 2, the feeding barrel 25 cooperates with the bin barrel 21. During the feeding process, the worker guides the material into the feeding barrel 25, so that the material slides into the bin barrel 21 along the feeding barrel 25 under the action of its own gravity. During crushing, the crushing plate 28 evenly installed on one side of the crushing mechanism 3 through the arc plate 27 cooperates with the crushing mechanism 3. During the high-speed rotation of the crushing mechanism 3, the material is crushed and then driven, and impacts in the direction of the crushing plate 28 under its own inertia. The pressure between the material and the crushing plate 28 during contact cooperates with the change in the width of the crushing plate to reduce the contact area during contact and increase the pressure during contact, so that the material is crushed again. At the same time, during the crushing process, the inner ring plate 24 cooperates with the crushing mechanism 3 to concentrate the material on the outside of the sieve plate 306 during crushing, and the inner ring plate 24 cooperates with the through-groove plate 26 and the side cover plate 22 to form a double-layer structure on both sides.

[0024] In the dust removal mechanism 4, the crushing mechanism 3 and the crushing bin 2 are coordinated through the grille tube 43 and the fixed cover 41, so that the spiral plate 311 drives the dust formed by crushing to pass through the through groove of the through groove plate 26 and enter between the fixed cover 41 and the grille tube 43. After the dust is driven by the spiral plate 311 to pass through the through groove plate 26, it first enters the circulation space between the outer baffle cover 45 and the inner baffle cover 46. The outer diameters of the inner baffle cover 46 and the outer baffle cover 45 change, so that the circulation gap is gradually reduced, and the air flow rate passing through the through groove plate 26 is accelerated, driving the dust to enter between the fixed cover 41 and the grille tube 43. Subsequently, the grille tube 43 cooperates with the dust filter bag 47, so that the air passes through the dust filter bag 47, and the dust is blocked and stays between the grille tube 43 and the fixed cover 41 for collection.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0026] 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 construction crusher with auxiliary dust reduction function, characterized in that: include: A frame (1), a crushing chamber (2) being fixedly mounted on the top of the frame (1), and a motor (5) being fixedly mounted on the outer side of the crushing chamber (2); A crushing mechanism (3), the crushing mechanism (3) being used to cooperate with the crushing bin (2) to perform crushing and to guide dust during the crushing process, the crushing mechanism (3) being installed inside the crushing bin (2), and one end of the crushing mechanism (3) being connected to an output end of a motor (5); A dust removal mechanism (4), the dust removal mechanism (4) being used to collect crushing dust discharged from the crushing mechanism (3), the dust removal mechanism (4) being installed on a side of the crushing bin (2) away from the motor (5); The crushing mechanism (3) comprises a transmission shaft (301), bearings (302) are installed at both ends of the outer side of the transmission shaft (301), the transmission shaft (301) is rotatably connected to the inner wall of the crushing bin (2) through the bearings (302), and one end of the transmission shaft (301) is connected to the output end of the motor (5), a shaft cylinder (309) is fixedly installed at the center position of the outer side of the transmission shaft (301), a spiral plate (311) is fixedly installed at the center position of the outer side of the shaft cylinder (309), the spiral plates (311) are evenly installed along the center position of the shaft cylinder (309), fixing rings (310) are fixedly installed at both ends of the outer side of the shaft cylinder (309), a support frame (308) is fixedly installed on the outer side of the fixing ring (310), the support frame (308) is evenly installed along the center position of the fixing ring (310), and sieve plates (306) are fixedly installed between the support frames (308).

2. A construction crusher with auxiliary dust reduction function according to claim 1, characterized in that: The sieve plate (306) is located outside the spiral plate (311), and end rings (303) are fixedly installed on the tops of both sides of the support frame (308), and support beams (307) are fixedly installed between the end rings (303). The support beams (307) are evenly installed along the center of the end rings (303), and the outer side of the support beam (307) is tightly fitted with the inner wall of the sieve plate (306).

3. A construction crusher with auxiliary dust reduction function according to claim 2, characterized in that: A rotating groove block (304) is fixedly connected to one side of the support frame (308) away from the fixing ring (310), rotating grooves are evenly formed on the outer side of the rotating groove block (304), and a breaking hammer (305) is rotatably mounted at the rotating grooves of the rotating groove block (304).

4. A construction crusher with auxiliary dust reduction function according to claim 3, characterized in that: The crushing bin (2) comprises a bin barrel (21), the bin barrel (21) being fixedly mounted on the top of the frame (1), and side cover plates (22) and through-slot plates (26) being fixedly mounted at both ends of the inner wall of the bin barrel (21), the side cover plates (22) and through-slot plates (26) being symmetrically mounted along the central position of the axis of the bin barrel (21).

5. A construction crusher with auxiliary dust reduction function according to claim 4, characterized in that: The center position of the outer side of the side cover plate (22) is fixedly connected to the motor (5), the center position of the outer side of the through-slot plate (26) is evenly provided with arc-shaped through-slots, and the center position of the outer side of the through-slot plate (26) is fixedly connected to the inner wall of the dust removal mechanism (4).

6. A construction crusher with auxiliary dust reduction function according to claim 5, characterized in that: A feeding cylinder (25) is fixedly mounted on one side of the top of the silo (21), the top end of the feeding cylinder (25) is inclined toward the other side of the silo (21), and a discharging cylinder (23) is fixedly mounted on the bottom of the silo (21).

7. A construction crusher with auxiliary dust reduction function according to claim 6, characterized in that: An arc-shaped plate (27) is fixedly connected to one side of the inner wall of the silo (21), and a crushing plate (28) is fixedly connected to the side of the arc-shaped plate (27) close to the crushing mechanism (3). The width of the crushing plate (28) gradually decreases as it approaches the crushing mechanism (3), and the crushing plates (28) are evenly installed along the center of the arc-shaped plate (27). Inner ring plates (24) are fixedly installed on both sides of the arc-shaped plate (27), and the opposing surfaces of the inner ring plates (24) are tightly fitted with the non-opposing surfaces of the end ring (303).

8. A construction crusher with auxiliary dust reduction function according to claim 7, characterized in that: The dust removal mechanism (4) comprises a fixed cover (41), the fixed cover (41) being fixedly mounted at a central position outside the through-slot plate (26), and a sealing plate (42) being fixedly mounted at one end of the fixed cover (41) away from the through-slot plate (26), and a rubber gasket (44) being fixedly mounted between the sealing plate (42) and the fixed cover (41).

9. A construction crusher with auxiliary dust reduction function according to claim 8, characterized in that: The inner wall of the sealing plate (42) is fixedly connected to a grille tube (43); one end of the grille tube (43) close to the through-slot plate (26) is fixedly connected to the outer side of the through-slot plate (26); the outer diameter of the grille tube (43) gradually increases as it approaches the sealing plate (42); and grille grooves are evenly formed on the outer side of the grille tube (43).

10. A construction crusher with auxiliary dust reduction function according to claim 9, characterized in that: A dust filter bag (47) is fixedly mounted at the center position of the outer side of the grille cylinder (43); an inner retaining cover (46) is fixedly mounted on the outer side of the grille cylinder (43) close to the through-slot plate (26); an outer retaining cover (45) is fixedly mounted on the inner wall of the fixed cover (41) close to the through-slot plate (26); the outer retaining cover (45) is a conical cover whose outer diameter decreases as it moves away from the through-slot plate (26); and the inner retaining cover (46) is a conical cover whose outer diameter increases as it moves away from the through-slot plate (26).

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