Building material crushing equipment

Abstract

The invention discloses building material crushing equipment which comprises a processing box, a crushing mechanism with a crushing part is arranged in the processing box, the crushing mechanism comprises the crushing part, a crushing shaft is rotationally installed in the processing box, the crushing part is installed on the outer surface of the crushing shaft, and a rotating wheel is fixedly installed at one end of the crushing shaft. According to the building material crushing equipment, a crushing steel cutter and a crushing hammer are introduced for cooperative work, multi-angle and deep crushing of building materials is achieved, the crushing efficiency is improved, the crushing efficiency is improved, and the crushing efficiency is improved. The breaking steel knives are arranged around the two sides of the breaking hammer, it is ensured that building materials are comprehensively cut and impacted in all directions, meanwhile, the two sets of breaking steel knives are designed to stretch out and draw back alternately for use, damage to a single breaking steel knife caused by single impact can be reduced, and the breaking steel knives are protected against excessive abrasion or damage.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to a building material crushing device. Background Art

[0002] Building materials include concrete blocks, stones, ceramics, etc. Traditional methods of crushing building materials mostly use single crushing machinery, such as jaw crushers, hammer crushers, etc. Although these methods can achieve the crushing purpose to a certain extent, they often have problems such as low crushing efficiency and fast equipment wear, especially for large and hard building materials, the crushing effect is particularly poor.

[0003] In the prior art, some equipment attempts to improve the crushing effect by adding a breaker or improving the crushing mechanism, but most of them are still limited to the impact force in a single direction, making it difficult to achieve multi-angle and all-round crushing of building materials, resulting in limited improvement in crushing efficiency. At the same time, during long-term continuous operation, there is intense friction between the crushing steel blades inside the crushing equipment and the building materials, releasing a large amount of heat energy, causing the temperature of the crushing steel blades and other wearing parts to rise sharply. This high-temperature environment not only accelerates the wear and deformation of the crushing steel blades, greatly shortening their service life, but also directly affects the crushing efficiency and effect. What is more serious is that the crushing steel blades at high temperatures may break due to the degradation of material properties, and their fragments may splash into the interior of the equipment, causing further damage to the equipment, increasing maintenance costs and safety risks. Summary of the invention

[0004] The purpose of the present invention is to provide a building material crushing equipment to solve the problem raised in the above background technology that during long-term continuous operation, severe friction is generated between the crushing steel knives inside the crushing equipment and the building materials, causing the crushing steel knives to heat up quickly, easily wear, and affect the crushing efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a building material crushing equipment, comprising a processing box, a crushing mechanism with a crushing component is arranged inside the processing box, the crushing mechanism includes a crushing component, a crushing shaft is rotatably installed inside the processing box, the crushing component is installed on the outer surface of the crushing shaft, a rotating wheel is fixedly installed on one end of the crushing shaft, a driving motor is installed outside the processing box, a belt is installed for transmission between the output shaft of the driving motor and the rotating wheel, the crushing component includes a hammer head, the hammer head is fixedly installed on the outer surface of the crushing shaft, a plurality of reinforcing plates are fixedly installed on the outer surface of the crushing shaft, and a hammer head is arranged between every two reinforcing plates , a plurality of protrusions are fixedly installed on the free end of the hammer head, a cutting mechanism with a crushing steel knife is arranged inside the crushing mechanism, the cutting mechanism includes a crushing steel knife, the crushing steel knife slides through the inside of the reinforcement plate, a fixing rod is rotatably installed inside the crushing shaft, a first motor is fixedly installed on one end of the crushing shaft, the output shaft of the first motor is fixedly connected to the fixing rod, a plurality of first rotating plates are fixedly installed on the outer surface of the fixing rod, the free end of the first rotating plate is hinged to the second rotating plate, the free end of the second rotating plate is hinged to the bottom end of the crushing steel knife, a spring is connected between the first rotating plate and the second rotating plate, and a crushing assembly is arranged inside the processing box.

[0006] As a preferred technical solution of the present invention, a cooling mechanism with an air pump is provided on the outside of the processing box near the cutting mechanism, and the cooling mechanism includes an air pump, which is fixedly installed on the outer surface of the processing box; a plurality of mutually connected through grooves are provided inside the crushing shaft near the crushing steel knife; a cavity matching the crushing steel knife is provided inside the crushing shaft, and the cavity is connected to the through groove; an annular groove connected to the through groove is provided on the inner wall of the processing box; an air outlet pipe is connected and installed at the output end of the air pump, and the air outlet pipe is connected to the through groove through the annular groove; a valve is provided on the outer surface of the air outlet pipe; a cold air pool is provided on the outside of the processing box; an air inlet pipe is connected and installed at the input end of the air pump, and the air inlet pipe is connected to the cold air pool; an activated carbon block is provided inside the air inlet pipe.

[0007] As a preferred technical solution of the present invention, a feed box is installed at the top of the processing box, a support frame is installed at the feed port of the feed box, and a plurality of buffer chains are fixedly installed on the support frame near the feed port.

[0008] As a preferred technical solution of the present invention, an auxiliary mechanism is provided at the top of the processing box near the crushing component, and the auxiliary mechanism includes a mounting plate and a limit baffle. The mounting plate is provided at the top of the processing box, and a support plate is installed at the top of the processing box by screws. A viscoelastic damper is provided between the support plate and the mounting plate. A hydraulic cylinder is fixedly installed on the outer surface of the mounting plate, and a rotating shaft is rotatably installed on the output shaft of the hydraulic cylinder. A rotating plate is rotatably installed on the outer surface of the rotating shaft, and the rotating plate is located inside the processing box, a telescopic cylinder is rotatably installed between the rotating plate and the mounting plate, and a plurality of limit baffles are fixedly installed on the surface of the rotating plate close to the crushing component.

[0009] As a preferred technical solution of the present invention, the crushing assembly includes a second motor and a crushing roller. The crushing roller is rotatably installed inside a processing box, and multiple crushing rollers are staggered with each other. The second motor is fixedly installed on the outer surface of the processing box, and the output shaft of the second motor is fixedly connected to the crushing roller.

[0010] As a preferred technical solution of the present invention, a suction cylinder is installed at the top of the processing box, a protective net is provided on the surface of the suction cylinder close to the inside of the processing box, the input end of the air pump is connected to the suction cylinder, and a filter box is provided at the input end of the air pump, and a discharge pipe for filtering dust is provided on one side of the filter box.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention can continuously crush building materials by arranging multiple crushing hammers for staggered crushing, and can quantitatively export building materials through the gaps between the hammer heads, effectively avoiding the problem of low efficiency of subsequent crushing roller processing caused by crushing too much material at one time, thereby improving the throughput and efficiency of the overall crushing production line. At the same time, the close cooperation between the hammer head and the limit baffle forms an efficient crushing chamber. When building materials enter this area, the impact force generated by the crushing hammer can act on the material more concentratedly, making the crushing process more efficient and precise. In addition, the viscoelastic damper installed at the rear end of the limit baffle can not only effectively absorb the impact force generated in the crushing process and reduce equipment vibration and wear, but also significantly reduce the noise level and improve the working environment.

[0013] 2. The present invention realizes multi-angle and deep-level crushing of building materials by introducing crushing steel knives and working in coordination with a crushing hammer. The crushing steel knives are arranged around both sides of the crushing hammer to ensure comprehensive cutting and impacting of building materials from all directions. This multi-directional crushing mechanism makes the stress distribution inside the building materials more uniform and the cracks expand more rapidly, thereby significantly improving the crushing efficiency and crushing effect. At the same time, two groups of crushing steel knives are designed, each group containing multiple wear-resistant, high-strength alloy blades. These crushing steel knives should have sharp cutting edges to more effectively crush building materials, and the two groups of crushing steel knives can be used alternately and telescopically, which can reduce the damage to a single crushing steel knife caused by a single impact and protect the crushing steel knife from excessive wear or damage.

[0014] 3. The air pump cooling of the present invention can effectively and timely introduce the cold air in the external cold air pool into the through slot, and quickly blow it to the surface of the crushing steel blade that is not used after the alternation. This instant cooling mechanism ensures that the crushing steel blade can be quickly cooled down after continuous high-intensity work, effectively preventing the hardness and toughness of the crushing steel blade from decreasing due to high temperature, thereby maintaining the best performance state of the crushing steel blade during the crushing process. At the same time, by timely cooling, these risks are effectively reduced, and the safety and stability of the crushing operation are improved.

[0015] 4. The present invention provides a buffer chain so that when building materials are fed, the buffer chain can effectively prevent the building materials from splashing out due to excessive impact force during the crushing process, which greatly reduces the potential risk of injury to surrounding personnel and equipment caused by the splashing. At the same time, the buffer chain, as a buffer medium, can absorb part of the noise generated during the crushing process, which helps to reduce noise pollution at the crushing operation site. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention;

[0017] Figure 2 It is a side view structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the buffer chain structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the processing box of the present invention;

[0020] Figure 5 It is a schematic diagram of the limit stopper structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the crushing assembly of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the air suction tube of the present invention;

[0023] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at A in FIG.

[0024] Fig. 9 It is a schematic diagram of the cutting mechanism structure of the present invention;

[0025] Fig.10 This is a schematic diagram of the internal structure of the crushing shaft of the present invention;

[0026] Fig.11 It is a schematic diagram of the structure of the crushing steel knife of the present invention.

[0027] In the figure: 1. Processing box;

[0028] 2. Feed box; 21. Support frame; 22. Buffer chain;

[0029] 3. Crushing mechanism; 31. Driving motor; 32. Belt; 33. Rotating wheel;

[0030] 34. Crushing parts; 341. Crushing shaft; 342. Reinforcement plate; 343. Hammer head; 344. Bump;

[0031] 35. Auxiliary mechanism; 351. Mounting plate; 352. Viscoelastic damper; 353. Support plate; 354. Hydraulic cylinder; 355. Telescopic cylinder; 356. Rotating shaft; 357. Rotating plate; 358. Limit stopper;

[0032] 36. Crushing components;

[0033] 4. Cutting mechanism; 41. First motor; 42. Fixed rod; 43. First rotating plate; 44. Second rotating plate; 45. Crushing steel knife;

[0034] 5. Cooling mechanism; 51. Cold air pool; 52. Air inlet pipe; 53. Air pump; 54. Air outlet pipe; 55. Annular groove; 56. Through groove; 57. Air suction tube; 58. Filter box; 59. Discharge pipe. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-11 , the present invention provides a technical solution for building material crushing equipment:

[0037] Embodiment 1:

[0038] A building material crushing equipment comprises a processing box 1, wherein a crushing mechanism 3 with a crushing component 34 is arranged inside the processing box 1, a feed box 2 is connected and installed at the top of the processing box 1, and feeding is carried out through the feed box 2, a support frame 21 is installed at the feed port of the feed box 2, and a plurality of buffer chains 22 are fixedly installed at the position of the support frame 21 near the feed port, and the buffer chains 22 are used as buffer media to absorb part of the noise generated during the crushing process, which helps to reduce the noise pollution at the crushing operation site, the crushing mechanism 3 comprises a crushing component 34, a crushing shaft 341 is rotatably installed inside the processing box 1, and the crushing component 34 is installed on the outer surface of the crushing shaft 341, and the crushing component 34 comprises a hammer head 343, and the hammer head 343 is fixedly installed on the outer surface of the crushing shaft 341, and the vibration and impact force of the hammer head 343 are not only used to crush stones, but also can help control the flow of building materials, and the gap between the hammer heads 343 helps to maintain the stability of the material amount in the crushing chamber, thereby indirectly affecting the effect of quantitative export, and the outer surface of the crushing shaft 341 is fixed A plurality of reinforcing plates 342 are fixedly installed, and a hammer head 343 is arranged between every two reinforcing plates 342. A plurality of protrusions 344 are fixedly installed on the free end of the hammer head 343. The design of the protrusion 344 reduces the direct contact area between the hammer head 343 and the building materials, thereby reducing the wear rate and extending the service life of the hammer head 343. A rotating wheel 33 is fixedly installed on one end of the crushing shaft 341. A driving motor 31 is installed on the outside of the processing box 1. A belt 32 is installed between the output shaft of the driving motor 31 and the rotating wheel 33. A crushing assembly 36 is arranged inside the processing box 1. The crushing assembly 36 includes a second motor and a crushing roller. The crushing roller is rotatably installed inside the processing box 1, and the plurality of crushing rollers are staggered with each other. The second motor is fixedly installed on the outer surface of the processing box 1. The output shaft of the second motor is fixedly connected to the crushing roller. The crushed building materials can be crushed by the crushing roller to meet the requirements of recycling processing. At the same time, the initial crushing effect of the hammer head 343 can reduce the load of the crushing roller and reduce its wear degree.

[0039] The processing box 1 is provided with an auxiliary mechanism 35 at the top near the crushing component 34. The auxiliary mechanism 35 includes a mounting plate 351 and a limit stopper 358. The mounting plate 351 is provided at the top of the processing box 1. A support plate 353 is installed at the top of the processing box 1 by screws. A viscoelastic damper 352 is provided between the support plate 353 and the mounting plate 351. A hydraulic cylinder 354 is fixedly installed on the outer surface of the mounting plate 351. A rotating shaft 356 is rotatably installed on the output shaft of the hydraulic cylinder 354. A rotating plate 357 is rotatably installed on the outer surface of the rotating shaft 356, and the rotating plate 357 is located at the auxiliary mechanism 351. Inside the work box 1, the hydraulic cylinder 354 can drive the limit block 358 to adjust the angle, so that the limit block 358 can form an efficient crushing chamber with the hammer head 343, and a telescopic cylinder 355 is rotatably installed between the rotating plate 357 and the mounting plate 351. The rotating plate 357 is stabilized by the telescopic cylinder 355. A plurality of limit blocks 358 are fixedly installed on the surface of the rotating plate 357 close to the crushing component 34. The limit blocks 358 can make the impact force generated by the hammer head 343 act on the material more concentratedly, making the crushing process more efficient and precise.

[0040] Embodiment 2:

[0041] On the basis of the first embodiment, a cutting mechanism 4 with a crushing steel knife 45 is arranged inside the crushing mechanism 3, and the cutting mechanism 4 includes a crushing steel knife 45, which slides through the interior of the reinforcement plate 342. By introducing the crushing steel knife 45 and working in conjunction with the crushing hammer, multi-angle and deep-level crushing of the building materials is achieved. A fixed rod 42 is rotatably installed inside the crushing shaft 341, and a first motor 41 is fixedly installed at one end of the crushing shaft 341. The output shaft of the first motor 41 is fixedly connected to the fixed rod 42, and a plurality of first rotating plates 43 are fixedly installed on the outer surface of the fixed rod 42. The free end of the first rotating plate 43 is hinged to the second rotating plate 44, and the free end of the second rotating plate 44 is hinged to the bottom end of the crushing steel knife 45. A spring is connected between the first rotating plate 43 and the second rotating plate 44. Through the alternating forward and reverse rotation of the first motor 41 (the forward and reverse rotation angles are both 45 degrees), the two groups of crushing steel knives 45 can be alternately extended and retracted for use, which can reduce the damage to a single crushing steel knife 45 caused by a single impact, and protect the crushing steel knife 45 from excessive wear or damage.

[0042] A cooling mechanism 5 with an air pump 53 is provided on the outside of the processing box 1 near the cutting mechanism 4. The cooling mechanism 5 includes the air pump 53, which is fixedly mounted on the outer surface of the processing box 1. A plurality of mutually connected through grooves 56 are provided inside the crushing shaft 341 near the crushing steel knife 45. A cavity matching the crushing steel knife 45 is provided inside the crushing shaft 341, and the cavity is connected to the through groove 56. An annular groove 55 connected to the through groove 56 is provided on the inner wall of the processing box 1. An air outlet pipe 54 is connected and installed at the output end of the air pump 53, and the air outlet pipe 54 is connected to the through groove 56 through the annular groove 55. A valve is provided on the outer surface of the air outlet pipe 54. A cold air pool 51 is provided on the outside of the processing box 1. An air inlet pipe 52 is connected and installed at the input end of the air pump 53, and the air inlet pipe 52 is connected to the cold air pool 51. The cold air in the cold air pool 51 is quickly blown to the surface of the crushing steel knife 45 that is not used after alternation through the air pump 53. This instant cooling mechanism ensures that the crushing steel knife 45 can be quickly cooled down after continuous high-intensity work, and effectively prevents the hardness and toughness of the crushing steel knife 45 from decreasing due to high temperature, thereby maintaining the best performance state of the crushing steel knife 45 during the crushing process. An activated carbon block is arranged inside the air inlet pipe 52. The activated carbon block can prevent the water vapor in the cold air from corroding and rusting the crushing steel knife 45, thereby affecting the service life of the crushing steel knife 45. A suction cylinder 57 is installed at the top of the processing box 1, and a protective net is arranged on the surface of the suction cylinder 57 close to the inside of the processing box 1. The input end of the air pump 53 is connected to the suction cylinder 57, and the input end of the air pump 53 is connected to a filter box 58, and a discharge pipe 59 for filtering dust is arranged on one side of the filter box 58. The dust floating inside the processing box 1 can be adsorbed by the suction cylinder 57, thereby reducing the secondary pollution of the environment caused by the dust.

[0043] The working principle of a building material crushing device of the present invention is:

[0044] During specific use, the building materials are first fed through the feed box 2, and then the driving motor 31 is started, the driving motor 31 drives the belt 32 to transmit, the belt 32 drives the rotating wheel 33 to rotate, and the rotating wheel 33 drives the hammer 343 to rotate. The multiple crushing hammers are staggered to crush, so that the building materials can be crushed uninterruptedly, and the vibration and impact force of the hammer 343 are not only used to crush stones, but also can help control the flow of building materials. The gaps between the hammers 343 help to maintain the stability of the material amount in the crushing chamber, thereby indirectly affecting the effect of quantitative export, effectively avoiding the problem of low efficiency of subsequent crushing roller processing due to crushing too much material at one time, thereby improving the overall crushing production line. Throughput and efficiency, at the same time, by installing a mounting plate 351 with a limit stop 358, the hammer head 343 and the limit stop 358 are closely matched, and the limit stop 358 can be driven by the hydraulic cylinder 354 to adjust the angle, so that the limit stop 358 and the hammer head 343 can form an efficient crushing chamber. When building materials enter this area, the impact force generated by the hammer head 343 can act more concentratedly on the material, making the crushing process more efficient and precise, and the viscoelastic damper 352 installed at the rear end of the limit stop 358 can not only effectively absorb the impact force generated in the crushing process and reduce equipment vibration and wear, but also significantly reduce the noise level and improve the working environment.

[0045] Furthermore, by introducing crushing steel knives 45 and working in conjunction with the crushing hammer, multi-angle and deep-level crushing of building materials is achieved. The crushing steel knives 45 are arranged around both sides of the hammer head 343, ensuring comprehensive cutting and impacting of the building materials from all directions, greatly increasing the crushing contact area and crushing points. This multi-directional crushing mechanism makes the stress distribution inside the building material more uniform and the cracks expand more rapidly, thereby significantly improving the crushing efficiency and crushing effect. At the same time, two groups of crushing steel knives 45 are designed, each group containing multiple wear-resistant, high-strength alloy blades. These crushing steel knives 45 should have sharp cutting edges to more effectively crush building materials, and the two groups of crushing steel knives 45 can be used alternately and telescopically, which can reduce the damage to a single crushing steel knife 45 caused by a single impact and protect the crushing steel knife 45 from excessive wear or damage.

[0046] Furthermore, by starting the first motor 41, the first motor 41 drives the fixed rod 42 to rotate, and the fixed rod 42 drives the first rotating plate 43 and the second rotating plate 44 to rotate. Since the first rotating plate 43 and the second rotating plate 44 are symmetrically arranged, the first rotating plate 43 and the second rotating plate 44 can respectively drive the two groups of crushing steel knives 45 to move alternately, so that one group of crushing steel knives 45 is moved to the inside of the crushing shaft 341. At this time, by starting the air pump 53, the cold air in the cold air pool 51 is introduced into the through groove 56 through the air pump 53, and quickly blown to the surface of the crushing steel knives 45 that are not used after the alternation, and the heat flow is transmitted through the crushing steel knives 45 and the reinforcing plate 3 The gap between the steel blades 42 is discharged to the interior of the processing box 1, and then the heat flow inside the processing box 1 is discharged through the suction effect of the suction tube 57. This instant cooling mechanism ensures that the crushing steel blade 45 can be quickly cooled down after continuous high-intensity work, and effectively prevents the hardness and toughness of the crushing steel blade 45 from decreasing due to high temperature, thereby maintaining the best performance state of the crushing steel blade 45 during the crushing process. At the same time, through timely cooling, these risks are effectively reduced, and the safety and stability of the crushing operation are improved. Then, by reverse starting the first motor 41, the cooled crushing steel blade 45 is moved out of the crushing shaft 341, thereby realizing the crushing of the building materials.

[0047] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A building material crushing device, comprising a processing box (1), Features: A crushing mechanism (3) with a crushing component (34) is arranged inside the processing box (1), a cutting mechanism (4) with a crushing steel knife (45) is arranged inside the crushing mechanism (3), and a crushing assembly (36) is arranged inside the processing box (1); The crushing mechanism (3) comprises a crushing component (34), a crushing shaft (341) is rotatably mounted inside the processing box (1), the crushing component (34) is mounted on the outer surface of the crushing shaft (341), a rotating wheel (33) is fixedly mounted on one end of the crushing shaft (341), a driving motor (31) is mounted outside the processing box (1), and a belt (32) is installed between the output shaft of the driving motor (31) and the rotating wheel (33); The crushing component (34) comprises a hammer head (343), wherein the hammer head (343) is fixedly mounted on the outer surface of the crushing shaft (341), a plurality of reinforcing plates (342) are fixedly mounted on the outer surface of the crushing shaft (341), and a hammer head (343) is arranged between every two reinforcing plates (342), and a plurality of protrusions (344) are fixedly mounted on the free end of the hammer head (343); The cutting mechanism (4) comprises a crushing steel knife (45), the crushing steel knife (45) slides through the interior of the reinforcing plate (342), a fixing rod (42) is rotatably installed inside the crushing shaft (341), a first motor (41) is fixedly installed at one end of the crushing shaft (341), an output shaft of the first motor (41) is fixedly connected to the fixing rod (42), a plurality of first rotating plates (43) are fixedly installed on the outer surface of the fixing rod (42), a free end of the first rotating plate (43) is hinged to a second rotating plate (44), a free end of the second rotating plate (44) is hinged to the bottom end of the crushing steel knife (45), and a spring is connected between the first rotating plate (43) and the second rotating plate (44).

2. A building material crushing device according to claim 1, Features: The processing box (1) is provided with a cooling mechanism (5) with an air pump (53) outside the processing box (1) near the cutting mechanism (4), the cooling mechanism (5) comprising the air pump (53), the air pump (53) being fixedly mounted on the outer surface of the processing box (1), the crushing shaft (341) is provided with a plurality of mutually connected through grooves (56) inside the crushing steel blade (45), the crushing shaft (341) is provided with a cavity cooperating with the crushing steel blade (45), and the cavity is connected with the through groove (56), the inner wall of the processing box (1) An annular groove (55) connected to the through groove (56) is provided, an outlet pipe (54) is installed at the output end of the air pump (53), and the outlet pipe (54) is connected to the through groove (56) through the annular groove (55), a valve is provided on the outer surface of the outlet pipe (54), a cold air pool (51) is provided outside the processing box (1), an inlet pipe (52) is installed at the input end of the air pump (53), and the inlet pipe (52) is connected to the cold air pool (51), and an activated carbon block is provided inside the inlet pipe (52).

3. A building material crushing device according to claim 2, Features: The top end of the processing box (1) is connected to a suction cylinder (57), and a protective net is provided on the surface of the suction cylinder (57) close to the inside of the processing box (1). The input end of the air pump (53) is connected to the suction cylinder (57), and the input end of the air pump (53) is connected to a filter box (58), and a discharge pipe (59) for filtering dust is provided on one side of the filter box (58).

4. A building material crushing device according to claim 1, Features: The top end of the processing box (1) is connected to a feed box (2), a support frame (21) is installed at the feed inlet of the feed box (2), and a plurality of buffer chains (22) are fixedly installed on the support frame (21) near the feed inlet.

5. A building material crushing device according to claim 1, Features: The processing box (1) is provided with an auxiliary mechanism (35) at the top end near the crushing component (34), and the auxiliary mechanism (35) comprises a mounting plate (351) and a limit stopper (358). The mounting plate (351) is provided at the top end of the processing box (1), and a support plate (353) is installed at the top end of the processing box (1) by means of screws. A viscoelastic damper (352) is provided between the support plate (353) and the mounting plate (351). The surface of the mounting plate (351) A hydraulic cylinder (354) is fixedly mounted on the surface, a rotating shaft (356) is rotatably mounted on the output shaft of the hydraulic cylinder (354), a rotating plate (357) is rotatably mounted on the outer surface of the rotating shaft (356), and the rotating plate (357) is located inside the processing box (1), a telescopic cylinder (355) is rotatably mounted between the rotating plate (357) and the mounting plate (351), and a plurality of limit blocks (358) are fixedly mounted on the surface of the rotating plate (357) close to the crushing component (34).

6. A building material crushing device according to claim 1, Features: The pulverizing assembly (36) comprises a second motor and a pulverizing roller, wherein the pulverizing roller is rotatably mounted inside the processing box (1), and a plurality of pulverizing rollers are staggered with each other, the second motor is fixedly mounted on the outer surface of the processing box (1), and the output shaft of the second motor is fixedly connected to the pulverizing roller.

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