Building construction solid waste treatment equipment and method

Abstract

The invention provides building construction solid waste treatment equipment and method, belongs to the field of building waste treatment, and aims at solving the problems that in the prior art, solid waste treatment cannot be carried out on site, and the cost benefit is low when solid waste is transported to a site for treatment. The treatment equipment comprises a feeding port, a first-stage crushing part, a second-stage crushing part and a screening part through which solid waste passes in sequence; the first-stage crushing part comprises a crushing cavity, power cavities, a power shaft and an impact rod, the two power cavities are located on the two sides of the crushing cavity and are separated from the crushing cavity through cavity plates, punched holes are formed in the cavity plates, the impact rod is movably arranged in the punched holes, and an impact structure is arranged on the side, located on the crushing cavity, of the impact rod; one side of the power cavity is connected with the power shaft and is driven by the power shaft to impact back and forth; the secondary crushing part is a crusher, and the screening part is used for screening and discharging. The device is combined with the method, and on-site treatment and recycling of the building solid waste are achieved. The device is combined with the scheme, so that the cost benefit is remarkable.

Description

Technical Field

[0001] The invention belongs to the field of construction waste treatment, and in particular relates to a construction solid waste treatment device and method. Background Art

[0002] Construction solid waste refers to waste generated during the construction, maintenance and demolition of buildings, of which concrete blocks are the main component. Taking bridges as an example, the main part of the solid waste generated during the construction and demolition of bridges is concrete blocks. If these wastes are not properly handled, they will cause many environmental problems. Abandoned concrete blocks will not only pollute the environment, but also mean a large waste of resources and space. Therefore, the reasonable disposal of these abandoned concrete blocks from bridge construction and the promotion of their resource utilization have become important issues that need to be urgently addressed in current bridge construction.

[0003] The recycling of abandoned concrete blocks from bridges covers multiple application areas, including the production of recycled aggregates, the preparation of road and foundation construction materials, and the production of cement products. At present, the recycling of bridge concrete blocks mostly relies on large-scale treatment stations for centralized treatment. However, due to the high construction and operation and maintenance costs of large-scale treatment stations, the number of stations is limited and it is difficult to build them at bridge construction sites, so the cost of transporting construction solid waste generated by bridge construction to these stations for recycling may even exceed the economic benefits. In view of this, a solid waste treatment equipment that can be used directly at bridge construction sites is developed. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a construction solid waste treatment device and method, which is used to solve the problem that the solid waste generated by bridge construction in the prior art cannot be treated on-site and needs to be transported to a site for treatment, resulting in low efficiency.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a construction solid waste treatment device and method.

[0006] Among them, a construction solid waste treatment equipment includes: The solid waste is passed through the feed inlet, primary crushing section, secondary crushing section and screening section in sequence; The primary crushing part includes a crushing chamber, a power chamber, a power shaft and an impact rod. The crushing chamber corresponds to the feed port. The two power chambers are located on both sides of the crushing chamber and are separated from the crushing chamber by a cavity plate. The cavity plate is provided with a punching hole. The impact rod is movably arranged in the punching hole. The impact rod is provided with an impact structure at one side of the crushing chamber, is connected to the power shaft at one side of the power chamber and is driven by the power shaft to reciprocate and impact. Support rods are also arranged at intervals at the bottom of the crushing chamber. The secondary crushing part is a crusher arranged at the outlet of the primary crushing part, and the screening part is arranged at the outlet of the secondary crushing part and screens the discharged material; The spacing of the support rods can be set as required, and the support rods can be rotatably connected to the housing and connected to the power shaft through a belt or chain.

[0007] Optionally, the power shaft is a crankshaft, comprising a main journal, an eccentric journal and a connecting handle connecting the main journal and the eccentric journal, and the power shaft comprises at least one section of eccentric journal; The impact rod comprises an impact part and a connecting part, wherein the impact part is provided with an impact head, the connecting part is rotatably connected to the eccentric neck, the impact part and the connecting part are connected via a ball joint, and the impact part rod body and the punching hole are threadedly matched.

[0008] Optionally, on the power shaft, the eccentric neck is spirally arranged along the axial direction of the power shaft, and the impact height layers of multiple impact rods on the same power shaft are the same; the impact rods on both sides of the crushing chamber are staggered in height layers; and at least one group of impact rods at the same height layer is arranged on each side of the crushing chamber.

[0009] Optionally, the screening section includes a circulating belt, a primary screen and a secondary screen; the circulating belt is arranged at the discharge port of the secondary crushing section and is driven by a power roller to circulate, the circulating belt is arranged in a triangle, the top surface is horizontally arranged to receive materials, one side is arranged inwardly inclined to dump materials, one end of the primary screen and the secondary screen extends into the inner inclined area to receive materials, and the other end is connected to an external conveying system; the primary screen is arranged on the upper layer of the secondary screen, and the mesh of the primary screen is larger than that of the secondary screen.

[0010] Optionally, a vibrator is also included, which includes a connecting member and a rotating ring, wherein both ends of the connecting member are respectively connected to the primary screen and the secondary screen, and a protruding first contact portion is provided on the connecting member, and a protruding second contact portion is provided on the rotating ring. During the rotation of the rotating ring, the first contact portion and the second contact portion alternately contact and disengage and drive the primary screen and the secondary screen to vibrate.

[0011] Optionally, the sub-screening part also includes a dust removal chamber, which has openings at both ends, a first opening at one end being connected to the interior of the sub-screening part, and a second opening at the other end being connected to the external environment and being provided with an exhaust fan; in the dust removal chamber, a first spray pipe is provided at the top and a water collecting box is provided at the bottom.

[0012] Optionally, a first groove and a second groove are provided on the second opening, the first groove and the second groove are parallel and both vertically penetrate the second opening, the exhaust fan is located in the dust removal chamber shell and is located in the area between the first groove and the second groove, the first groove is located at the outer end of the second opening, a second spray pipe is provided on the upper side of the first groove, a dust collection box is provided on the lower side of the first groove, and a roller is provided on each side area of ​​the first groove and the second groove on the outer end side of the dust removal chamber shell, and an annular dustproof net is provided on the two rollers and passes through the first groove and the second groove.

[0013] Optionally, the feed port is in a shape of being larger at the top and smaller at the bottom, and a third spray pipe is provided at the upper end of the feed port, and the spraying range of the third spray pipe covers the bottom feed port of the feed port.

[0014] Optionally, the bottom of the sub-screening part is in a funnel shape, the lowest area in the middle of the funnel shape is connected to a tubular filter cloth, and a mud pool is provided below the sub-screening part.

[0015] A method for treating solid waste from construction, using the above-mentioned equipment for treating solid waste from construction, comprises the following steps: In a crushing step, solid waste is fed into the feed port, crushed into blocks by the primary crushing part, and then crushed into granular waste by the secondary crushing part; The spraying step comprises spraying water from the third spray pipe, which flows into the feed port, the primary crushing part, the secondary crushing part and the screening part in sequence, cooling the primary crushing part and the secondary crushing part, and absorbing dust and fine waste in the equipment to form waste water; A screening step, wherein the screening part screens the granular waste generated in the crushing step according to size and sends it out; In the filtering step, the bottom end of the filter cloth is closed, the waste water formed in the spraying step passes through the filter cloth, the solid dust gathers inside the filter cloth, the water flows through the filter cloth into the bottom mud pool, and when a lot of solid dust gathers in the filter cloth, the closed structure at the bottom end of the filter cloth is opened and poured into other receiving devices.

[0016] As described above, the construction solid waste treatment equipment and method of the present invention have at least the following beneficial effects: It is possible to process construction solid waste at the bridge construction site. The first-level crushing unit processes the construction solid waste into blocks, and the second-level crushing unit processes the block solids into smaller particles, which can improve the processing capacity of the processing equipment. At the same time, the finished products after processing can also be better recycled. It avoids the accumulation and long-distance transportation of construction solid waste, and realizes the on-site treatment and recycling of construction solid waste. During bridge construction, the solid waste can be reused as a road surface substrate after on-site treatment. In general, this device combined with this solution has significant benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is an overall schematic diagram of the present invention.

[0018] Figure 2 Shown is a schematic diagram of the primary crushing section of the present invention.

[0019] Figure 3 Shown is a schematic diagram of the power shaft and impact rod of the present invention.

[0020] Figure 4 Shown is a partial cutaway schematic diagram of the present invention.

[0021] Figure 5 Shown is a schematic diagram of the dust removal chamber of the present invention.

[0022] Figure 6 Shown as the present invention Figure 5 A partial enlarged schematic diagram in the middle.

[0023] Figure 7 Shown as the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle.

[0024] Figure 8 Shown is a top view schematic diagram of the present invention.

[0025] Among them: feed inlet 1, third spray pipe 10, primary crushing part 2, crushing chamber 20, chamber plate 21, punching hole 211, power chamber 22, power shaft 23, main shaft neck 231, eccentric neck 232, connecting handle 233, impact rod 24, impact part 241, thread 2410, ball joint 242, connecting part 243, support rod 25, secondary crushing part 3, screening part 4, circulating belt 40, primary screen 41, secondary screen 42, dust removal chamber 43, first groove 431, second spray pipe 4311, exhaust fan 432, second groove 433, first spray pipe 434, dust collecting box 435, roller 436, dustproof net 437, filter cloth 44, first contact part 451, second contact part 452. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] See also Figures 1 to 8 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0028] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0029] For this example, please refer to Figure 1-Figure 3 , an embodiment of a construction solid waste treatment equipment provided by the present invention comprises: The solid waste is sequentially passed through the feed port 1, the primary crushing part 2, the secondary crushing part 3 and the screening part 4. The above functional parts can be arranged sequentially from top to bottom, and the solid waste automatically falls by gravity; like Figure 2 As shown, the primary crushing part 2 includes a crushing chamber 20, a power chamber 22, a power shaft 23 and an impact rod 24. The crushing chamber 20 corresponds to the feed port 1. The two power chambers 22 are located on both sides of the crushing chamber 20 and are separated from the crushing chamber 20 by a cavity plate 21 respectively. A punching hole 211 is provided through the cavity plate 21. The impact rod 24 is movably provided in the punching hole 211. The movable setting here means that the impact rod 24 can slide along the axis of the punching hole 211 or rotate relative to the punching hole 211. The impact rod 24 is provided with an impact structure at one side of the crushing chamber 20. The impact structure can be a flat blade shape or a cross star shape. It is located at one side of the power chamber 22 and is connected to the power shaft 23. The power shaft 23 drives the impact rod 24 to reciprocate and impact. Support rods 25 are also provided at intervals at the bottom of the crushing chamber 20. The secondary crushing section 3 is a crusher arranged at the outlet of the primary crushing section 2, and a jaw crusher or a roller crusher in the prior art can be directly selected. The jaw crusher is a crushing machine that utilizes the squeezing effect of two jaw plates on the material to crush materials of various hardnesses. It has a better crushing effect on concrete structures. While crushing, it can separate the steel bars and concrete blocks in the concrete structure, and generally does not cause cutting or crushing of the steel bars. The teeth on the roller surface of the roller crusher will crush the concrete and the steel bars together. The concrete has poor ductility and is crushed into particles, while the steel bars are cut into segments by the teeth on the roller surface. The screening section 4 is arranged at the outlet of the secondary crushing section 3 and screens the output. Multiple layers of screens with different apertures can be arranged to classify and process the output obtained by crushing according to different sizes. For example, larger granular output is used as aggregate for fresh concrete, while smaller powdered output is used as cement ash raw material, etc.

[0030] In the above embodiment, the main working process of the device is as follows: The device is installed at a construction site, such as a field bridge construction site. The waste concrete blocks generated during the construction process can be put in from the feed port 1. The put-in concrete blocks enter the primary crushing part 2 and are supported by the support rods 25 at the bottom of the crushing chamber 20 of the primary crushing part 2. The number and width of the support rods 25 can be set as needed, depending on how large the concrete blocks need to be allowed to leak directly into the secondary crushing part 3. The two ends of the support rods 25 can be rotated with the shell of the crushing chamber 20, and the outer ends are synchronously driven with the power shaft 23 through a chain or a belt. The rotation of the support rods 25 is used to flip the concrete blocks supported by it, change the impact position and prevent being blocked. At the same time, during the rotation of the power shaft 23, each impact rod 24 will be driven to impact the concrete blocks alternately. Due to the fragility of the concrete blocks, under the flipping action of the support rods 25, the impact rods 24 impact and crush different parts of the concrete blocks, so that the whole piece of concrete is broken into multiple pieces. Smaller concrete blocks leak into the lower layer through the spacing between the support rods 25, and larger concrete blocks continue to be flipped by the support rods 25 and impacted by the impact rods 24. The support rod 25 can be used as a support to flip the concrete block, improve the impact effect, and prevent blockage. In addition, the strip-shaped steel bars broken from the concrete block can also be smoothly leaked into the lower secondary crushing part.

[0031] After the initial crushing in the primary crushing part, the size of the concrete blocks entering the secondary crushing part has been reduced, and the secondary crushing part can use a crusher with lower energy consumption, and the crushing scale of the secondary crushing part is also smaller. When the concrete blocks are squeezed by the secondary crushing part, their fragility will cause the concrete blocks to be crushed into smaller particles and powder, and the steel bars and concrete will also fall off from each other. Then they fall into the screening part 4, and are screened by the screening structure set in the screening part 4, such as multi-layer screens with different apertures, to sort and recycle the steel bars, granular concrete blocks and powdery concrete on site.

[0032] The processing equipment of the above embodiment can not only be deployed at the construction site of outdoor bridge construction, but also the multi-stage crushing mode is conducive to improving the crushing effect and reducing the energy consumption of the device. The first-stage crushing part is an impact type, which uses the characteristic that the concrete block is easy to crack under local force to divide the large-volume concrete block into small pieces. The second-stage crushing part is an extrusion type, which uses the characteristic that the concrete block is easy to break under extrusion to crush the block concrete into granules and powder, thereby realizing the recycling of construction solid waste.

[0033] This embodiment can be found in Figure 2 and Figure 3 The power shaft 23 is a crankshaft, which can refer to the structure of a crankshaft in an engine, including a main journal 231, an eccentric journal 232, and a connecting handle 233 connecting the main journal 231 and the eccentric journal 232. The power shaft 23 includes at least one eccentric journal 232. The main journal 231 is coaxial with the crankshaft body, and the eccentric journal 232 is offset relative to the axis of the crankshaft body; The impact rod 24 includes an impact portion 241 and a connecting portion 243. The impact portion 241 is provided with an impact head. The specific structure of the impact head can be a flat blade shape or a cross star shape. The connecting portion 243 is rotatably connected to the eccentric neck 232. The impact portion 241 and the connecting portion 243 are connected by a ball joint 242. The rod body of the impact portion 241 and the punching hole 211 are matched by a thread 2410.

[0034] In the above embodiment, when the power shaft 23 rotates, the eccentric neck 232 will rotate eccentrically relative to the axis of the power shaft 23, thereby causing the impact rod 24 to rotate eccentrically. However, since the other end of the impact rod 24 cooperates with the punching hole 211 on the cavity plate 21, the impact rod 24 will reciprocate and telescope coaxially with the punching hole 211 under the drive of the power shaft 23, thereby forming an impact crushing effect on the concrete block in the crushing cavity 20.

[0035] In the above embodiment, since the impact rod 24 and the punching hole 211 are also threadedly matched, and the rear end of the impact rod 24 is connected by a ball joint, the impact rod 24 will also rotate around its own axis during the process of reciprocating and extending along the axis of the punching hole 211. When the impact head of the impact rod 24 rotates to impact the concrete block, a greater impact force can be obtained, and the rotation of the impact head after piercing the concrete block also has a tearing effect, which can better break the whole block of concrete into small pieces.

[0036] For this example, please refer to Figure 3, on the power shaft 23, the eccentric neck 232 is spirally arranged along the axis direction of the power shaft 23. Specifically, in addition to the position difference along the axis direction, the eccentric neck 232 also has an angle difference along the circumferential direction. The circumferential position difference and circumferential angle difference between two adjacent eccentric necks 232 are equal. The impact height layers of multiple impact rods 24 on the same power shaft 23 are the same; the impact rods 24 on both sides of the crushing chamber 20 are staggered in the height layer; at least one group of impact rods 24 at the same height layer is set on each side of the crushing chamber 20. Figure 2 As shown, a row of punching holes 211 and an axial hole for installing the power shaft 23 are reserved on the upper layer of the left crushing chamber 20.

[0037] By setting the eccentric neck 232 on the power shaft 23 in the above manner and setting the impact rods 24 connected to each eccentric neck 232 to the same size, the tip connection line of each impact rod 24 on the same power shaft 23 can be located on a sinusoidal function curve. Each impact rod 24 alternately impacts different positions on the concrete block, resulting in greater local force and greater stress differences in various parts of the concrete block. Combined with the rotational tearing effect of the impact rod 24, the concrete block crushing effect is stable and reliable.

[0038] This embodiment can be found in Figure 4 The screening part 4 includes a circulating belt 40, a primary screen 41 and a secondary screen 42; the circulating belt 40 is arranged at the discharge port of the secondary crushing part 3 and is driven by a power roller to circulate, and the power roller can be synchronized with the power of the power shaft 23 and the support rod 25, and is driven by a motor, through a chain or belt transmission, the circulating belt 40 is arranged in a triangle, and the top surface is horizontally arranged to receive the material dropped from the secondary crushing part, one side of which is arranged inwardly obliquely to dump the material, and one end of the primary screen 41 and the secondary screen 42 extends into the inner oblique area to receive the material, and the other end is connected to the external conveying system; the primary screen 41 is arranged on the upper layer of the secondary screen 42, and the mesh of the primary screen 41 is larger than that of the secondary screen 42. The primary screen 41 can be used to screen out strips of steel bars, and the secondary screen 42 can be used to screen out concrete particles, and fine products such as powder are collected separately through the secondary screen.

[0039] Furthermore, combined with Figure 5 and Figure 6 , also includes a vibrator, the vibrator includes a connecting piece and a rotating ring, the two ends of the connecting piece are respectively connected to the primary screen 41 and the secondary screen 42, the connecting piece is also provided with a protruding first contact portion 451, and the rotating ring is provided with a protruding second contact portion 452. During the rotation of the rotating ring, the first contact portion 451 and the second contact portion 452 alternately contact and disengage and drive the primary screen 41 and the secondary screen 42 to vibrate, and the vibrator can prevent material accumulation and blockage on the screen.

[0040] Furthermore, combined with Figure 5 and Figure 7The sub-screening part 4 also includes a dust removal chamber 43, which has openings at both ends. The first opening at one end is connected to the inside of the sub-screening part 4. A grid can be set at the connecting opening to prevent granular broken objects from entering the dust removal chamber 43. The second opening at the other end is connected to the external environment and is provided with an exhaust fan 432. In the dust removal chamber 43, a first spray pipe 434 is provided at the top and a water collection box is provided at the bottom. There are multiple first spray pipes 434, which cover the upper surface of the dust removal chamber 43. When the spray pipes are turned on, they will spray to the bottom, that is, the water collection box. Multiple spray pipes can simulate the scene of rainfall. When the exhaust fan 432 is turned on, it sucks air from the inside of the dust removal chamber 43 and discharges it to the outside.

[0041] In the above implementation, the complete working principle is that when the solid waste treatment equipment is turned on, the first spray pipe 434 and the exhaust fan 432 are also turned on. When the primary crushing part 2, the secondary crushing part 3 and the screening part 4 are working, dust will be generated. The exhaust fan 432 allows the gas to enter the equipment from the feed port 1 on the primary crushing part 2 and the discharge port of the screening part 4 from the outside of the equipment and pass through the dust removal chamber 43 before being discharged. Thereby, the dust overflow from the feed port and the discharge port of the device is reduced. At the same time, since the gas passes through the rainfall field formed by the first spray pipe 434 of the dust removal chamber 43, most of the dust in the air is absorbed, so the dust content of the discharged gas is low.

[0042] Furthermore, if Figure 5 , Figure 7 and Figure 8 As shown, the second opening is provided with a first groove 431 and a second groove 433, the first groove 431 and the second groove 433 are parallel and both vertically penetrate the second opening, the exhaust fan 432 is located in the dust removal chamber 43 shell and is located in the area between the first groove 431 and the second groove 433, the first groove 431 is located at the outer end of the second opening, a second spray pipe 4311 is provided on the upper side of the first groove 431, and a dust collecting box 435 is provided on the lower side of the first groove 431, and a roller 436 is provided on each side area of ​​the first groove 431 and the second groove 433 on the outer end side of the dust removal chamber 43 shell, the roller needs to have rotational power, and the method of obtaining power is not restricted, and the annular dustproof net 437 is sleeved on the two rollers 436 and passes through the first groove 431 and the second groove 433.

[0043] In the previous embodiment, although the rainfall scene formed by the first spray pipe 434 can filter most of the dust, a small amount of dust will still pass through the water curtain formed by the first spray pipe 434. Therefore, in this embodiment, a filter is further provided. At the second slot 433, when the air passes through the filter, the dust is trapped on the filter. When there is a lot of dust accumulation on the filter, the roller 436 rotates, and the filter originally in the second slot 433 is switched to the first slot 431, and then the second spray pipe 4311 provided on the upper side of the first slot 431 is sprayed to wet the filter in the first slot 431 and the dust attached to the surface, and the exhaust fan 432 works with a smaller wind force, which can blow away and remove the dust on the filter, so that it falls into the dust box 435, and at the same time, it can avoid the generation of dust during the cleaning process. Through the above process, the filter can be automatically cleaned, that is, self-cleaning and continuous work, will not be blocked, and the self-cleaning process will not generate dust.

[0044] This embodiment can be found in Figure 1 and Figure 8 The feed port 1 is in a shape of being larger at the top and smaller at the bottom. A third spray pipe 10 is provided at the upper end of the feed port 1. The spraying range of the third spray pipe 10 covers the bottom feed port of the feed port 1. The purpose of spraying water by the third spray pipe 10 includes: dust suppression; cooling the primary crushing part 2 and the secondary crushing part 3; and washing the powder in the crushed material to make the screening more complete.

[0045] For further information, see Figure 4 and Figure 5 The bottom of the sub-screening part 4 is in the shape of a funnel, and the lowest area in the middle of the funnel shape is connected to a tubular filter cloth 44, and a mud pool is arranged below the sub-screening part 4. The funnel shape can receive the water sprayed from the third spray pipe 10, and the water is mixed with powder ash to form muddy water. The filter cloth can filter the muddy water to a certain extent and obtain finer dust filter residue materials. On the one hand, these fine dust filter residue materials can be used in certain specific construction scenes at the construction site, and on the other hand, they can also avoid the formation of dust spreading into the air. The collection and filtering function of the filter cloth can not only realize the recycling of broken dust products, but also reduce the cost of wastewater purification.

[0046] This embodiment is an embodiment of a method for treating solid waste from construction, and the equipment in the embodiment of the equipment for treating solid waste from construction as described above can be used, and the following steps are performed: In the crushing step, solid waste is fed into the feed port 1, crushed into blocks by the primary crushing part 2, and then crushed into granular waste by the secondary crushing part 3; In the spraying step, the third spray pipe 10 sprays water, which flows into the feed port 1, the primary crushing part 2, the secondary crushing part 3 and the screening part 4 in sequence, cools the primary crushing part 2 and the secondary crushing part 3, absorbs dust and fine waste in the equipment, suppresses dust and forms waste water at the same time; In the screening step, the screening part 4 screens and sends out the granular waste produced in the crushing step according to size. Larger granular products can be used for the production of recycled aggregates, and these recycled aggregates are reused in road construction, foundation reinforcement or the production of low-strength concrete products. These large-sized recycled aggregates can effectively reduce the exploitation of natural resources and reduce construction costs, while realizing the resource utilization of waste and promoting the development of a circular economy. Smaller granular or powder products can be used in environmentally friendly building materials such as cement mixed materials and wall insulation mortar to further improve resource utilization and reduce environmental pollution. This hierarchical utilization method allows waste concrete blocks to be recycled comprehensively and efficiently; In the filtering step, the bottom end of the filter cloth 44 is closed, and the wastewater formed in the spraying step passes through the filter cloth 44. The solid dust gathers inside the filter cloth 44, and the water flows into the bottom mud pool through the filter cloth 44. When a lot of solid dust gathers in the filter cloth 44, the closed structure at the bottom end of the filter cloth 44 is opened and poured into other receiving devices. The closed structure can be a rope knot.

[0047] After the spraying step, the solid dust in the wastewater is effectively trapped inside the filter cloth 44, while the relatively clean water can smoothly pass through the filter cloth and flow into the mud pool at the bottom. This process achieves efficient solid-liquid separation, improves the treatment efficiency of wastewater, and reduces the treatment cost. As the filtering process continues, a large amount of solid dust will gradually accumulate inside the filter cloth 44. When these dusts accumulate to a certain extent, by opening the closed structure at the bottom of the filter cloth, these solid wastes can be conveniently collected and poured into other receiving devices. This not only facilitates subsequent resource recycling, such as as building materials or soil conditioners, but also reduces waste emissions, which is beneficial to environmental protection. The use of the filter cloth has shown significant effects in solid-liquid separation, resource recycling, reducing environmental pollution and improving production efficiency.

[0048] In summary, the present invention effectively overcomes various shortcomings in the prior art, can produce beneficial technical effects, and has significant progress.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A construction solid waste treatment equipment, characterized in that: include: A feed inlet (1), a primary crushing section (2), a secondary crushing section (3) and a screening section (4) for the solid waste to pass through in sequence; The primary crushing part (2) comprises a crushing chamber (20), a power chamber (22), a power shaft (23) and an impact rod (24); the crushing chamber (20) corresponds to the feed port (1); the two power chambers (22) are located on both sides of the crushing chamber (20) and are separated from the crushing chamber (20) by a chamber plate (21) respectively; a punching hole (211) is provided through the chamber plate (21); the impact rod (24) is movably provided in the punching hole (211); the impact rod (24) is provided with an impact structure at one side of the crushing chamber (20); is connected to the power shaft (23) at one side of the power chamber (22) and is driven by the power shaft (23) to reciprocate and impact; and support rods (25) are also provided at intervals at the bottom of the crushing chamber (20); The secondary crushing section (3) is a pulverizer arranged at the outlet of the primary crushing section (2), and the screening section (4) is arranged at the outlet of the secondary crushing section (3) and screens the discharged material.

2. A construction solid waste treatment equipment as claimed in claim 1, characterized in that: The power shaft (23) is a crankshaft, comprising a main journal (231), an eccentric neck (232), and a connecting handle (233) connecting the main journal (231) and the eccentric neck (232), and the power shaft (23) comprises at least one section of the eccentric neck (232); The impact rod (24) comprises an impact portion (241) and a connecting portion (243); the impact portion (241) is provided with an impact head; the connecting portion (243) is rotatably connected to the eccentric neck (232); the impact portion (241) and the connecting portion (243) are connected via a ball joint (242); and the rod body of the impact portion (241) and the punching hole (211) are matched via a thread (2410).

3. A construction solid waste treatment equipment as claimed in claim 2, characterized in that: On the power shaft (23), the eccentric neck (232) is spirally arranged along the axial direction of the power shaft (23); the impact height layers of multiple impact rods (24) on the same power shaft (23) are the same; the impact rods (24) on both sides of the crushing chamber (20) are staggered in height layers; and at least one group of impact rods (24) at the same height layer is arranged on each side of the crushing chamber (20).

4. A construction solid waste treatment equipment as claimed in claim 1, characterized in that: The screening section (4) comprises a circulating belt (40), a primary screen (41) and a secondary screen (42); the circulating belt (40) is arranged at the discharge port of the secondary crushing section (3) and is driven by a power roller to circulate; the circulating belt (40) is arranged in a triangular shape, with a top surface arranged horizontally to receive materials, and one side arranged inwardly obliquely to dump materials; one end of the primary screen (41) and the secondary screen (42) extends into the inwardly oblique area to receive materials, and the other end is connected to an external conveying system; the primary screen (41) is arranged on an upper layer of the secondary screen (42), and the mesh of the primary screen (41) is larger than that of the secondary screen (42).

5. A construction solid waste treatment equipment as claimed in claim 4, characterized in that: The invention also comprises a vibrator, the vibrator comprising a connecting member and a rotating ring, the two ends of the connecting member being respectively connected to the primary screen (41) and the secondary screen (42), the connecting member being provided with a protruding first contact portion (451), the rotating ring being provided with a protruding second contact portion (452), and during the rotation of the rotating ring, the first contact portion (451) and the second contact portion (452) are alternately in contact with and out of contact with each other and drive the primary screen (41) and the secondary screen (42) to vibrate.

6. A construction solid waste treatment equipment as claimed in claim 4, characterized in that: The sub-screening portion (4) further comprises a dust removal chamber (43), the dust removal chamber (43) having openings at both ends, a first opening at one end being in communication with the interior of the sub-screening portion (4), and a second opening at the other end being in communication with the external environment and being provided with an exhaust fan (432); a first spray pipe (434) is provided at the top of the dust removal chamber (43), and a water collecting box is provided at the bottom.

7. A construction solid waste treatment equipment as claimed in claim 6, characterized in that: The second opening is provided with a first groove (431) and a second groove (433), the first groove (431) and the second groove (433) are parallel and vertically penetrate the second opening, the exhaust fan (432) is located in the shell of the dust removal chamber (43) and is located in the area between the first groove (431) and the second groove (433), the first groove (431) is located at the outer end of the second opening, a second spray pipe (4311) is provided on the upper side of the first groove (431), and a dust collecting box (435) is provided on the lower side of the first groove (431), and a roller (436) is provided on each side of the first groove (431) and the second groove (433) on the outer side of the shell of the dust removal chamber (43), and an annular dustproof net (437) is sleeved on the two rollers (436) and passes through the first groove (431) and the second groove (433).

8. The construction solid waste treatment equipment according to claim 1, characterized in that: The feed inlet (1) is in a shape of being larger at the top and smaller at the bottom, and a third spray pipe (10) is provided at the upper end of the feed inlet (1), and the spraying range of the third spray pipe (10) covers the bottom feed inlet of the feed inlet (1).

9. A construction solid waste treatment equipment as claimed in claim 8, characterized in that: The bottom of the sub-screen portion (4) is in the shape of a funnel, the lowest area in the middle of the funnel shape is connected to a tubular filter cloth (44), and a mud pool is provided below the sub-screen portion (4).

10. A method for treating solid waste from construction, characterized in that: The construction solid waste treatment equipment according to claim 9 comprises the following steps: A crushing step, in which solid waste is fed into the feed port (1), crushed into blocks by the primary crushing section (2), and then crushed into granular waste by the secondary crushing section (3); a spraying step, wherein the third spray pipe (10) sprays water, which flows into the feed port (1), the primary crushing section (2), the secondary crushing section (3) and the screening section (4) in sequence, cools the primary crushing section (2) and the secondary crushing section (3), and absorbs dust and fine waste in the equipment to form waste water; A screening step, wherein the screening part (4) screens the granular waste generated in the crushing step according to size and sends it out; In the filtering step, the bottom end of the filter cloth (44) is closed, the waste water generated in the spraying step passes through the filter cloth (44), solid dust gathers inside the filter cloth (44), the water flows through the filter cloth (44) into the bottom mud pool, and when a large amount of solid dust gathers inside the filter cloth (44), the closed structure at the bottom end of the filter cloth (44) is opened and poured into other receiving devices.

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