CN114433604A

CN114433604A - Urban construction is equipped with rubbish innocent treatment

Info

Publication number: CN114433604A
Application number: CN202210001878.1A
Authority: CN
Inventors: 孙永伟; 钱洪祥; 王任滔
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-05-06
Anticipated expiration: 2042-01-04
Also published as: CN114433604B

Abstract

The invention belongs to the technical field of garbage treatment, and particularly relates to garbage harmless treatment equipment for urban construction, which comprises a rack, wherein a crushing assembly for crushing masonry and a slow discharging assembly for slowly discharging broken masonry particles are arranged at the top of the rack, a same iron removing assembly capable of adsorbing steel scraps is connected between the crushing assembly and the slow discharging assembly, a feeding hopper for feeding is arranged at the top of the crushing assembly, two symmetrically-distributed buffering protection assemblies for slowing down the falling speed of the masonry and preventing the broken masonry particles from splashing are rotatably arranged in the feeding hopper, air curtains for preventing dust from escaping are symmetrically arranged on the inner walls of two sides of the feeding hopper, and air blown out by the air curtains forms a vortex capable of gathering dust below the buffering protection assemblies. The invention has better dustproof and protective effects and can recycle the metal resources in the garbage.

Description

Urban construction is equipped with rubbish innocent treatment

Technical Field

The invention relates to the technical field of garbage treatment, in particular to garbage harmless treatment equipment for urban construction.

Background

With the development of social economy, town construction is continuously deepened in China, because modern town construction in China mainly takes concrete buildings as main parts, the concrete buildings have certain service life limitation due to aging problems, the service life of houses of the concrete buildings in China is designed to be about 70 years mostly, old buildings are continuously dismantled and rebuilt, a large amount of construction waste can be generated after the concrete buildings are dismantled, the construction waste can be more and more along with the transformation of old cities, the removal of urban-middle villages and the reconstruction of roads, the quantity of the concrete and masonry waste is the largest, most of the construction waste is not treated at all and is transported to suburbs or villages by construction units, the construction waste is stacked or buried in the open air, and a large amount of construction expenses such as land expenses, garbage clearing and transportation expenses are consumed.

The existing construction waste crushing equipment has the following defects:

1. the existing crushing device usually adopts a water spraying mode to inhibit the generation of dust in the process of crushing waste masonry, but a large amount of slurry can be generated after the dust is subjected to rainwater, the slurry can cause environmental pollution after leaking, and a large amount of water resources are consumed; in addition, in the process of breaking the masonry, the condition that masonry particles splash to hurt people easily occurs;

2. meanwhile, under the condition that reinforcing steel bars and iron wires are carried in the crushed masonry, if the metal resources can be recycled, some cost can be saved; meanwhile, a large amount of dust can be generated when the broken masonry particles are directly discharged, and the masonry particles with sharp edges can easily scratch packaging bags and even cause accidents of hurting people.

Therefore, we propose a garbage harmless treatment device for urban construction to solve the above problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides garbage harmless treatment equipment for urban construction.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a city construction is equipped with rubbish innocent treatment, which comprises a frame, broken subassembly and the slow ejection of compact subassembly of the garrulous grain of slow discharge brick stone of broken brick stone are installed at the top of frame, broken subassembly and the slow ejection of compact subassembly between be connected with the iron and steel piece's of same adsorbable deironing subassembly, the feeder hopper that is used for the feeding is installed at the top of broken subassembly, the feeder hopper internal rotation is installed and is slowed down the garrulous grain falling speed and prevent that two that the garrulous grain of brick stone splashes are the buffer protection subassembly of symmetric distribution, the air curtain that prevents the dust effusion is installed to the symmetry on the both sides inner wall of feeder hopper, the wind that blows off of air curtain forms the vortex that can gather the dust in the below of buffer protection subassembly.

Preferably, buffering protection component includes two pivots that are in the same place with feeder hopper inner wall fixed connection, all overlaps in two pivots to be equipped with the baffle with the sealed sliding connection of feeder hopper inner wall, and two baffles are the V-arrangement and distribute, and one side sealed connection that two baffles are close to each other is in the same place, all install the reset assembly that the baffle that makes after moving down resets on the both sides inner wall of frame.

Preferably, two arc-shaped grooves are formed in the inner wall, away from the two air curtains, of the rack, circular shafts are installed on the baffle in a penetrating mode, the two ends of the two circular shafts are fixedly sleeved with bearings, and the two bearings are installed in the corresponding arc-shaped grooves in a rolling mode respectively.

Preferably, the rectangular channel has all been seted up on the both sides inner wall of frame, and two reset assembly are located the rectangular channel that corresponds respectively, reset assembly includes the round bar that is in the same place with rectangular channel both sides inner wall fixed connection, it is equipped with the torsional spring to rotate the cover on the round bar, the both ends of torsional spring all are in the same place with the inner wall fixed connection of rectangular channel, be equipped with connecting portion on the torsional spring, the bottom swing joint of connecting portion and baffle is in the same place.

Preferably, the two baffles are provided with arc-shaped parts at the sides close to each other.

Preferably, broken subassembly includes the rectangle frame, two crisscross crushing rollers each other are installed to the rectangle frame internal rotation, one side fixed mounting of rectangle frame has the frame, and two crushing rollers are close to the one end of frame and all run through crushing roller and frame and rotate with crushing roller and frame and link together, one side fixed mounting that the rectangle frame was kept away from to the frame has motor one, motor one's output shaft and one of them crushing roller fixed connection together, and equal fixed cover is equipped with the gear on two crushing rollers, and two gear intermeshing are in the same place.

Preferably, the top and the bottom of the frame are both detachably provided with a partition plate, the two partition plates are hermetically connected with the frame, and the frame is filled with lubricating grease.

Preferably, the deironing subassembly is including the funnel that feeds through broken subassembly and ejection of compact subassembly slowly, be equipped with the magnetic sheet on the funnel, the magnetic sheet runs through the funnel and is in the same place with funnel sliding connection, set up the discharge opening that a plurality of matrixes distribute on the magnetic sheet, the holding tank that a plurality of matrixes distribute is seted up to the bottom of magnetic sheet.

Preferably, the slow discharging assembly comprises a cylinder and a second motor which are fixedly mounted at the top of the frame, the packing auger is rotatably mounted in the cylinder, and an output shaft of the second motor is fixedly connected with one end of the packing auger.

Preferably, four sides of the baffle are fixedly provided with the dustproof hairbrush, two limiting blocks are fixedly arranged on the inner walls of two sides of the feeding hopper, and the two baffles are respectively positioned below the two corresponding limiting blocks.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the two baffles distributed in the V shape can slow down the falling speed of the masonry on the crushing assembly, so that the situation that the crushing assembly is broken by the masonry is avoided, and meanwhile, the two baffles can cover the crushing assembly after being gathered together, so that the situation that masonry particles splash to hurt people in the process that the crushing assembly crushes the masonry is prevented, and the safety in the process of crushing the masonry is improved;

2. according to the invention, the two air curtains which are symmetrically distributed are arranged, the air curtains can be formed above the crushing assembly, dust in the process of crushing bricks and stones by the crushing assembly is inhibited from rising, meanwhile, the two air curtains are matched with the arc-shaped parts on the corresponding baffles, a vortex can be formed below the two baffles, the rising dust can be gathered, the rising dust is inhibited, meanwhile, under the condition that the dust in the vortex is too much, redundant dust falls downwards under the action of the gravity of the dust and finally passes through the crushing assembly, meanwhile, the wind blown by the air curtains cannot fall on the crushing assembly, and the wind blown by the air curtains cannot increase the rising of the dust;

3. in the process that broken masonry particles pass through the discharge hole in the magnetic plate and enter the slow discharge assembly, broken steel bars and iron wire particles in the masonry are adsorbed on the magnetic plate, when metal particles on the magnetic plate increase continuously, the metal particles above the broken steel bars and the iron wire particles are impacted below the magnetic plate by the masonry particles, and along with continuous impact of the masonry particles, the metal particles are gathered in the corresponding containing grooves, so that the lower part of the magnetic plate can adsorb more metal particles, the magnetic plate is periodically drawn out from the hopper for cleaning, and the metal particles on the magnetic plate are collected and can be recycled as waste;

4. according to the invention, by arranging the slow discharging assembly, the masonry particles can be more thoroughly crushed through the matching of the auger and the cylinder, so that the edges of the masonry particles can be more smooth, the situation that the packaging bag is cut in the subsequent bagging process can not occur, meanwhile, the masonry particles with smooth edges are not easy to hurt people, and the rotating auger extrudes the masonry particles, so that the speed of the masonry particles falling into the packaging bag can be slowed, a user can conveniently package the masonry particles, and meanwhile, dust rising in the masonry particle bagging process is also inhibited.

Drawings

FIG. 1 is a schematic view of the overall structure of a harmless treatment device for municipal construction waste according to the present invention;

FIG. 2 is a schematic side sectional view of a harmless treatment device for municipal construction waste according to the present invention;

FIG. 3 is a partially enlarged schematic view of FIG. 2;

FIG. 4 is a schematic side sectional view of a feed hopper, a buffering protection assembly and an air curtain in the harmless treatment equipment for urban construction garbage according to the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic structural view of a reset assembly in the harmless treatment equipment for urban construction waste according to the present invention;

FIG. 7 is a schematic structural diagram of a crushing assembly in the harmless treatment equipment for urban construction waste according to the present invention;

FIG. 8 is a schematic structural view of an iron removal assembly in the harmless treatment equipment for garbage for urban construction according to the present invention;

FIG. 9 is a schematic structural view of a magnetic plate in the harmless treatment equipment for urban construction waste according to the present invention;

FIG. 10 is a schematic top-down sectional view of a frame and a slow discharging component of the harmless treatment equipment for urban construction waste.

In the figure: 1. a frame; 2. a crushing assembly; 21. a rectangular frame; 22. a crushing roller; 23. a gear; 24. a frame; 25. a first motor; 3. an iron removal assembly; 31. a funnel; 32. a magnetic plate; 321. a discharge hole; 322. accommodating grooves; 4. a slow discharge assembly; 41. a cylinder; 42. a packing auger; 43. a second motor; 5. a feed hopper; 6. a buffer protection component; 61. a baffle plate; 62. a rectangular groove; 63. a reset assembly; 631. a round bar; 632. a torsion spring; 633. a connecting portion; 64. a limiting block; 65. a rotating shaft; 66. an arc-shaped slot; 67. an arc-shaped portion; 68. a circular shaft; 7. an air curtain.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-10, this embodiment provides a garbage innocent treatment equipment for urban construction, including frame 1, broken subassembly 2 of broken masonry and slow ejection of compact subassembly 4 of slow ejection of compact subassembly of slow ejection of compact granule are installed to the top of frame 1, be connected with same adsorbable iron and steel clastic deironing subassembly 3 between broken subassembly 2 and the slow ejection of compact subassembly 4, feeder hopper 5 that is used for the feeding is installed at the top of broken subassembly 2, feeder hopper 5 internal rotation is installed and is slowed down the masonry falling speed and prevent that two that the broken granule of masonry splashes are the buffer protection subassembly 6 of symmetric distribution, install the air curtain 7 that prevents the dust effusion on the both sides inner wall of feeder hopper 5 symmetrically, the wind that air curtain 7 blew out forms the vortex that can gather the dust in the below of buffer protection subassembly 6.

Example 2

Buffering protective component 6 includes two pivot 65 that are in the same place with 5 inner wall fixed connection of feeder hopper, all overlaps on two pivot 65 to be equipped with the baffle 61 with 5 inner wall sealing sliding connection of feeder hopper, and two baffles 61 are the V-arrangement and distribute, and two baffles 61 one side sealing connection that are close to each other are in the same place, all install the reset component 63 that makes the baffle 61 after moving down reset on the both sides inner wall of frame 1.

It should be noted that, as shown in fig. 5, since the two baffles 61 are distributed in a V-shape, the masonry is thrown above the two baffles 61, the masonry automatically slides to the gap between the two baffles 61 under the action of gravity, after the close ends of the two baffles 61 are pressed down by the masonry, the two baffles 61 rotate around the corresponding rotating shafts 65 and are away from each other, the masonry slides into the feeding hopper 5 from the gap between the two baffles 61 and falls on the crushing assembly 2 for crushing, so as to avoid the condition that the crushing assembly 2 is crushed due to the masonry falling violently on the crushing assembly 2, when the masonry crosses the two baffles 61, under the restoring elasticity of the two restoring assemblies 63, the two baffles 61 rotate around the corresponding rotating shafts 65 and approach each other, and when the two baffles 61 are together, the crushed particles generated by the crushing assembly 2 for crushing the masonry directly hit the inner wall of the feeding hopper 5 and the bottoms of the two baffles 61 The condition that splashed particles are thrown out to hurt people is avoided.

Two arc-shaped grooves 66 are formed in the inner wall, away from the two air curtains 7, of the frame 1, circular shafts 68 are installed on the baffle 61 in a penetrating mode, two ends of each circular shaft 68 are fixedly sleeved with bearings, and the two bearings are installed in the corresponding arc-shaped grooves 66 in a rolling mode respectively.

It should be noted that, as shown in fig. 5, in the process that the baffle 61 rotates around a rotation axis 65, the circular axis 68 and the two arc-shaped grooves 66 are matched with each other, so that a supporting function is provided at the middle of the baffle 61, and the baffle 61 is not easily deformed when masonry falls on the baffle 61 and broken stones are hit on the baffle 61, thereby ensuring that the two baffles 61 can always maintain a good buffering function, a good dust protection function, and a good dust isolation function in long-term operation.

Rectangular channel 62 has all been seted up on the both sides inner wall of frame 1, and two reset assembly 63 are in the rectangular channel 62 that corresponds respectively, and reset assembly 63 includes the round bar 631 that is in the same place with the fixed connection of rectangular channel 62 both sides inner wall, rotates the cover on the round bar 631 and is equipped with torsional spring 632, and torsional spring 632's both ends all are in the same place with the inner wall fixed connection of rectangular channel 62, are equipped with connecting portion 633 on torsional spring 632, and connecting portion 633 and baffle 61's bottom swing joint are in the same place.

It should be noted that, as shown in fig. 5-6, when the baffle 61 rotates and moves downward, a downward force is applied to the connecting portion 633, so that the entire torsion spring 632 will be compressed, and when the top of the baffle 61 is not subjected to any external force, the compressed torsion spring 632 will reset again and tilt up the connecting portion 633, and the tilted up connecting portion 633 will push the baffle 61 to rotate around the rotating shaft 65 and move upward, so as to ensure that after the masonry passes through the two baffles 61, the two baffles 61 will reset again and have the effect of preventing dust and gravel from splashing again.

Example 3

The two baffles 61 are provided with an arc-shaped part 67 on the side close to each other.

It should be noted that, as shown in fig. 5, the wind blown out by the wind curtain 7 first falls on the bottom of the inclined baffle 61, then after entering into the arc-shaped portion 67 and rotating in the arc-shaped portion 67 and turning around to blow over one side of the wind curtain 7, therefore, the wind blown out by the wind curtain 7 can form vortex flow below the baffle 61, the dust raised by the broken masonry of the breaking component 2 can be completely gathered below the baffle 61 along with the vortex flow, the dust generated in the breaking process can be completely positioned below the two baffles 61, the dust can not escape from the feed hopper 5, the sanitation in the process of breaking masonry is improved, in the event of excessive dust in the vortex below the baffle 61, the excess dust will fall under its own weight down and eventually pass through the crushing assembly 2, meanwhile, the air blown out by the air curtain 7 cannot fall on the crushing assembly 2, and the air blown out by the air curtain 7 cannot increase the rising of dust.

Example 4

Broken subassembly 2 includes rectangular frame 21, two crisscross crushing rollers 22 of each other are installed to rectangular frame 21 internal rotation, one side fixed mounting of rectangular frame 21 has frame 24, two crushing rollers 22 are close to frame 24's one end all run through crushing roller 22 and frame 24 and rotate with crushing roller 22 and frame 24 and link together, one side fixed mounting that rectangular frame 21 was kept away from to frame 24 has motor one 25, the output shaft of motor one 25 and one of them crushing roller 22 fixed connection are in the same place, equal fixed cover is equipped with gear 23 on two crushing rollers 22, two gear 23 intermeshing are in the same place.

It should be noted that, as shown in fig. 7, the first starting motor 25 can rotate the corresponding crushing roller 22, and the two crushing rollers 22 can rotate toward the side close to each other by the connection of the two gears 23, so that the two crushing rollers 22 rotating alternately can crush larger bricks into fine particles, thereby facilitating subsequent transportation and secondary utilization.

The top and the bottom of the frame 24 are both detachably provided with a partition plate, the two partition plates are both connected with the frame 24 in a sealing way, and the frame 24 is filled with lubricating grease.

It should be noted that, by immersing the two gears 23 and the two rectangular frames 21 in grease through the two partition plates and the frame 24, not only the two gears 23 can be protected and lubricated, but also the two crushing rollers 22 heated by crushing the masonry can be cooled, and the two crushing rollers 22 can be ensured to continuously and uninterruptedly crush the masonry.

Example 5

Deironing subassembly 3 is equipped with magnetic sheet 32 including the funnel 31 of the broken subassembly 2 of intercommunication and ejection of compact subassembly 4 slowly on the funnel 31, and magnetic sheet 32 runs through funnel 31 and is in the same place with funnel 31 sliding connection, offers the discharge opening 321 that a plurality of matrixes distribute on the magnetic sheet 32, and the holding tank 322 that a plurality of matrixes distribute is seted up to the bottom of magnetic sheet 32.

It should be noted that, as shown in fig. 8-9, the broken masonry particles will pass through the discharging holes 321 on the magnetic plate 32 and enter into the slow discharging assembly 4, and the broken steel bars and iron wire particles in the masonry will be adsorbed on the magnetic plate 32, when the metal particles on the magnetic plate 32 increase, the metal particles above will be impacted below the magnetic plate 32 by the masonry particles, and as the masonry particles continuously impact, the metal particles will be gathered in the corresponding holding grooves 322, ensuring that the metal particles below the magnetic plate 32 can be adsorbed more, and by periodically pumping out the magnetic plate 32 from the hopper 31 for cleaning, the metal particles on the magnetic plate 32 can be collected and recycled as waste.

Example 6

The slow discharging component 4 comprises a cylinder 41 and a second motor 43 which are fixedly arranged at the top of the rack 1, the packing auger 42 is rotatably arranged in the cylinder 41, and an output shaft of the second motor 43 is fixedly connected with one end of the packing auger 42.

It should be noted that, as shown in fig. 10, when the metal particles in the masonry particles are collected, the metal particles fall into the cylinder 41, and the auger 42 is driven by the second motor 43 to rotate, the masonry particles can be more thoroughly crushed by the cooperation of the auger 42 and the cylinder 41, so that the edges of the masonry particles can be smoother, the package bag can not be cut in the subsequent bagging process, meanwhile, the smooth-edge masonry particles are not easy to hurt people, and the rotating auger 42 extrudes the masonry particles, so that the speed of the masonry particles falling into the package bag can be slower, which not only facilitates the users to package the masonry particles, but also inhibits dust in the bagging process of the masonry particles, and then the masonry particles can replace a water absorbing layer or a sand layer for paving.

Example 7

The equal fixed mounting in four sides of baffle 61 has dustproof brush, equal fixed mounting has two stopper 64 on the both sides inner wall of feeder hopper 5, and two baffles 61 are located the below of two stopper 64 that correspond respectively.

It should be noted that, as shown in fig. 3, the dust brush can prevent the raised dust from escaping from the gap between the two baffles 61 and the gap between the baffles 61 and the inner wall of the rack 1, so as to improve the effect of the two baffles 61 on inhibiting the dust from rising, and improve the sanitation in the process of breaking the masonry, and the four limit blocks 64 can limit the upward movement of the two baffles 61, and ensure that the V-shaped clip angle can always exist between the two baffles 61, so that when the masonry falls on any part of any baffle 61, the masonry can finally move to the gap between the two baffles 61.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A garbage harmless treatment device for urban construction comprises a frame (1) and is characterized in that, the top of the frame (1) is provided with a breaking component (2) for breaking masonry and a slow discharging component (4) for slowly discharging broken particles of masonry, an iron removing component (3) which can absorb steel scraps is connected between the crushing component (2) and the slow discharging component (4), the top of the crushing component (2) is provided with a feed hopper (5) for feeding, two symmetrically distributed buffering protection components (6) for slowing down the falling speed of the masonry and preventing broken particles of the masonry from splashing are rotatably arranged in the feed hopper (5), air curtains (7) for preventing dust from escaping are symmetrically arranged on the inner walls of the two sides of the feed hopper (5), the air blown out by the air curtain (7) forms a vortex capable of gathering dust below the buffering protection component (6).

2. The harmless refuse disposal equipment for urban construction according to claim 1, wherein the buffering protection assembly (6) comprises two rotating shafts (65) fixedly connected with the inner wall of the feeding hopper (5), the two rotating shafts (65) are respectively sleeved with a baffle (61) in sliding connection with the inner wall of the feeding hopper (5) in a sealing manner, the two baffles (61) are distributed in a V-shaped manner, one sides of the two baffles (61) close to each other are connected in a sealing manner, and the inner walls of the two sides of the rack (1) are respectively provided with a reset assembly (63) for resetting the baffle (61) after moving downwards.

3. The harmless garbage disposal equipment for urban construction according to claim 2, wherein the inner wall of the frame (1) far away from the two air curtains (7) is provided with two arc-shaped grooves (66), the baffle (61) is provided with a circular shaft (68) in a penetrating manner, two ends of the two circular shafts (68) are fixedly sleeved with bearings, and the two bearings are respectively and rotatably mounted in the corresponding arc-shaped grooves (66).

4. The harmless refuse disposal equipment for urban construction according to claim 2, wherein rectangular grooves (62) are formed in the inner walls of both sides of the frame (1), two reset assemblies (63) are respectively located in the corresponding rectangular grooves (62), each reset assembly (63) comprises a round rod (631) fixedly connected with the inner walls of both sides of the rectangular groove (62), a torsion spring (632) is rotatably sleeved on each round rod (631), both ends of each torsion spring (632) are fixedly connected with the inner walls of the rectangular grooves (62), a connecting portion (633) is arranged on each torsion spring (632), and the connecting portion (633) and the bottom of the baffle (61) are movably connected together.

5. The harmless treatment equipment of garbage for urban construction according to claim 2, wherein the side of the two baffles (61) close to each other is provided with an arc-shaped part (67).

6. The harmless treatment equipment of the municipal construction waste according to claim 1, wherein the crushing assembly (2) comprises a rectangular frame (21), two staggered crushing rollers (22) are rotatably mounted in the rectangular frame (21), a frame (24) is fixedly mounted on one side of the rectangular frame (21), one ends of the two crushing rollers (22) close to the frame (24) penetrate through the crushing rollers (22) and the frame (24) and are rotatably connected with the crushing rollers (22) and the frame (24), a motor I (25) is fixedly mounted on one side of the frame (24) far from the rectangular frame (21), an output shaft of the motor I (25) is fixedly connected with one of the crushing rollers (22), gears (23) are fixedly sleeved on the two crushing rollers (22), and the two gears (23) are meshed with each other.

7. The harmless treatment equipment of the municipal construction waste according to claim 6, wherein the top and the bottom of the frame (24) are detachably provided with partition plates, both partition plates are hermetically connected with the frame (24), and the frame (24) is filled with lubricating grease.

8. The harmless refuse treatment equipment for urban construction according to claim 1, wherein the iron removing assembly (3) comprises a funnel (31) for communicating the crushing assembly (2) with the slow discharging assembly (4), a magnetic plate (32) is arranged on the funnel (31), the magnetic plate (32) penetrates through the funnel (31) and is slidably connected with the funnel (31), a plurality of discharging holes (321) distributed in a matrix form are formed in the magnetic plate (32), and a plurality of accommodating grooves (322) distributed in a matrix form are formed in the bottom of the magnetic plate (32).

9. The harmless treatment equipment of municipal construction waste according to claim 1, characterized in that the slow discharge assembly (4) comprises a cylinder (41) and a second motor (43) fixedly mounted on the top of the frame (1), the auger (42) is rotatably mounted in the cylinder (41), and the output shaft of the second motor (43) is fixedly connected with one end of the auger (42).

10. The harmless treatment equipment for the garbage for the urban construction according to claim 2, wherein the dust-proof brushes are fixedly arranged on four sides of the baffle plate (61), two limit blocks (64) are fixedly arranged on the inner walls of two sides of the feed hopper (5), and the two baffle plates (61) are respectively positioned below the two corresponding limit blocks (64).