Device and method for recycling mucky soil mixed with light garbage

Abstract

The invention relates to the technical field of construction waste treatment, and discloses equipment and method for recycling mucky soil mixed with light waste, the equipment comprises a machine body, a feeding bin is arranged at the upper left corner of the machine body, a crushing roller is rotatably connected to the lower portion of the feeding bin, and a rolling roller is rotatably connected to the downstream of the crushing roller; the vehicle-mounted building garbage disposal equipment has the advantages that the vehicle-mounted building garbage disposal equipment is small in size, can be quickly conveyed to a building garbage stacking point in a vehicle-mounted mode, and is high in practicability, and the construction garbage disposal equipment is convenient to use. The method can effectively treat the muddy soil mixed with the light garbage, the treated product is used as a building material base material, and the problems that the transportation cost of the building garbage is high, the manual sorting treatment efficiency of the muddy soil is low, and the treated product cannot be treated and consumed are effectively solved, so that in-situ treatment and recycling of the muddy soil mixed with the light garbage are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction waste treatment, and particularly relates to a device and method for recycling silt soil mixed with light waste. Background Art

[0002] Construction waste mainly enters the construction waste resource utilization plant through transfer transportation for centralized treatment such as sorting, screening, and crushing, and then is recycled.

[0003] However, the existing construction waste landfill sites are relatively scattered, and the cost of transporting the waste to the utilization plant is too high.

[0004] Moreover, some construction waste landfill sites are filled with a large amount of silt soil mixed with light waste such as plastics. The existing treatment processes in construction waste resource utilization plants are difficult to effectively treat such construction waste.

[0005] In some areas, it is strictly prohibited to directly use silt soil as a filler for earthwork backfilling. Therefore, on-site, the silt soil can only be transported to the resource utilization plant for treatment or directly sorted for the light waste in the silt soil manually after being air-dried through long-term layered paving. Then, the treated silt soil is piled up on-site. However, the manual sorting and treatment efficiency is low, and the treatment products cannot be disposed of and consumed. Summary of the Invention

[0006] To solve the above problems, the present invention provides a device and method for recycling silt soil mixed with light waste, and the present invention is realized through the following technical solutions.

[0007] A device for recycling silt soil mixed with light waste includes a machine body. The machine body is L-shaped. There is a feed bin at the upper left corner of the machine body. A crushing roller is rotatably connected below the feed bin. A crushing tooth that meshes with the crushing roller is fixedly connected to the left inner wall of the machine body. A rolling roller is rotatably connected downstream of the crushing roller. Air nozzles are densely arranged on the inner wall of the machine body downstream of the rolling roller. A drum crushing screen is provided at the right outlet of the machine body, and a drum air separation screen is provided at the outlet of the drum crushing screen.

[0008] As a further aspect of the present invention, the rolling roller includes a non-spiked roller and a spiked roller, and the non-spiked roller is located upstream of the spiked roller.

[0009] As a further aspect of the present invention, the drum crushing screen is internally provided with a silt scraper and crushing knife bars.

[0010] A method for recycling silt soil mixed with light waste includes the following steps:

[0011] S1, after an excavator with a backhoe bucket digs out the silt soil mixed with light waste, it is piled up in partitions at a designated position, and a loader with a bucket fills the silt soil piled up in partitions into the feed bin;

[0012] S2. The crushing roller rolls the silty soil falling from the feed bin into a thin layer and decomposes the large pieces of slag stones in the silty soil into small pieces.

[0013] S3. The non-spiked roller rolls the silty soil into a thin layer again. The small pieces of slag stones in the silty soil continue to be crushed, and the spiked roller rolls on the silty soil to form dense holes.

[0014] S4. The air blast nozzle swings at a uniform speed and sends out high-speed medium-temperature air flow. The air flow quickly flows on the surface and in the holes of the rolled silty soil. Under the dual promotion of the air flow and temperature, the thin layer of the rolled silty soil is quickly dried.

[0015] S5. The dried silty soil enters the drum crushing screen, is crushed due to collision, and is accelerated to decompose into fine aggregates by colliding with the crushing knife bars inside the drum crushing screen during the rolling process. The fine aggregates are screened out through the screen of the drum crushing screen, and the sludge scraper inside the drum crushing screen scrapes the sludge adhering to the inner wall of the drum.

[0016] S6. The larger-sized heavy aggregates and light garbage enter the drum air separation screen. The drum air separation screen blows air from the inlet, so that the light garbage is separated from the heavy aggregates. The heavy aggregates are screened out through the screen of the drum air separation screen, and the light garbage is blown out from the end outlet of the drum air separation screen.

[0017] As a further solution of the present invention, in the step S4, the temperature range of the high-speed medium-temperature air flow is 80 - 120 °C.

[0018] As a further solution of the present invention, in the step S5, the screened fine aggregates are transported to a building materials factory for use as building materials base materials.

[0019] As a further solution of the present invention, in the step S6, the separated heavy aggregates are subjected to magnetic separation, and the magnetically separated heavy aggregates are backfilled on the spot.

[0020] As a further solution of the present invention, in the step S6, the separated light garbage is compression-molded to form a combustible derived fuel, and is transported to an incineration power plant for incineration and power generation.

[0021] The beneficial effects of the present invention are that the equipment disclosed in this application is small in volume, can be quickly transported to the construction waste storage point by vehicle, and can efficiently process the silty soil mixed with light garbage, and use the processed product as a building materials base material, effectively solving the problems such as high transportation cost of construction waste, low manual sorting and processing efficiency of silty soil, and inability to dispose of and consume the processed products, so as to realize the on-site treatment and recycling of the silty soil mixed with light garbage. Description of the Drawings

[0022] To more clearly illustrate the technical solution of the present invention, the following will briefly introduce the drawings required for use in the description of the specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 : Structural schematic diagram of a device for recycling silt soil mixed with light waste.

[0024] The reference numerals are as follows:

[0025] 1 - Body, 2 - Feed bin, 3 - Crushing roller, 31 - Crushing teeth, 4 - Rolling roller, 41 - Non - spiked roller, 42 - Spiked roller, 5 - Air - blowing nozzle, 6 - Drum crushing sieve, 7 - Drum air - separation sieve. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] As Figure 1 shown, a device for recycling silt soil mixed with light waste includes a body 1. The body 1 is L - shaped. A feed bin 2 is provided at the upper left corner of the body 1. A crushing roller 3 is rotatably connected below the feed bin 2. A crushing tooth 31 that meshes with the crushing roller 3 is fixedly connected to the left inner wall of the body 1. A rolling roller 4 is rotatably connected downstream of the crushing roller 3. Air - blowing nozzles 5 are densely arranged on the inner wall of the body 1 downstream of the rolling roller 4. A drum crushing sieve 6 is provided at the right outlet of the body 1, and a drum air - separation sieve 7 is provided at the outlet of the drum crushing sieve 6.

[0028] Preferably, the rolling roller 4 includes a non - spiked roller 41 and a spiked roller 42, and the non - spiked roller 41 is located upstream of the spiked roller 42.

[0029] Preferably, the drum crushing sieve 6 is internally provided with a silt scraper and a crushing knife strip.

[0030] A method for recycling silt soil mixed with light waste includes the following steps:

[0031] S1. After the backhoe excavator digs out the silt soil mixed with light waste, it is piled up in designated areas, and the wheel loader fills the silt soil piled up in the divided areas into the feed bin 2;

[0032] In S2, the crushing roller 3 compacts the silt soil falling from the feed bin 2 into a thin layer and decomposes the large chunks of slag stones in the silt soil into small pieces;

[0033] By processing the silt soil with the crushing roller 3, on the one hand, the large chunks of muck can be crushed, and on the other hand, the silt soil can be preliminarily flattened, facilitating subsequent processing.

[0034] In S3, the non-spiked roller 41 compacts the silt soil into a thin layer again, and the small chunks of slag stones in the silt soil continue to be broken. The spiked roller 42 rolls on the silt soil to form dense holes;

[0035] The non-spiked roller 41 compacts the silt soil into a thin layer, and the spiked roller 42 forms dense holes on the thin layer. The thin-layer silt soil is more easily dried, and the setting of the dense holes enables simultaneous drying inside and outside.

[0036] In S4, the air-blowing nozzles 5 swing at a constant speed and send out high-speed medium-temperature airflows. The airflows flow rapidly on the surface and in the holes of the compacted silt soil. Under the dual promotion of the airflows and temperature, the thin layer of the compacted silt soil dries rapidly;

[0037] When the airflows swing, they can dry the silt soil in all directions, avoiding inconsistent drying speeds caused by the concentration of airflows. The highly flowing airflows can dry rapidly and carry away the water vapor generated by drying. The setting of the dense holes enables synchronous drying inside and outside the silt soil.

[0038] In S5, the dried silt soil enters the drum crushing screen 6, breaks due to collision, and accelerates decomposition into fine aggregates during the rolling process by colliding with the crushing knife bars inside the drum crushing screen 6. The fine aggregates are screened out through the screen mesh of the drum crushing screen 6, and the silt scraping plate inside the drum crushing screen 6 scrapes off the silt adhering to the inner wall of the drum;

[0039] The dried silt soil is brittle in texture and will break when it hits the crushing convex structure on the inner wall of the drum crushing screen 6. The set crushing knife bars can further improve the speed and degree of crushing. The silt soil may adhere to the inner wall of the drum crushing screen 6, and it is scraped off by the silt scraping plate to ensure the cleanliness of the inner wall of the drum crushing screen 6.

[0040] In S6, the heavier aggregates and light garbage with larger sizes enter the drum air separation screen 7. The drum air separation screen 7 blows air from the inlet, so that the light garbage is separated from the heavier aggregates. The heavier aggregates are screened out through the screen mesh of the drum air separation screen 7, and the light garbage is blown out from the end outlet of the drum air separation screen 7.

[0041] There is a difference in gravity between heavy aggregates and light waste. When blown by the wind, the light waste is blown, and the light waste and heavy aggregates will naturally separate. The sieve mesh of the drum air separation sieve 7 is relatively large, allowing the heavy aggregates to pass through, while the light waste is blown out from the end outlet of the drum air separation sieve 7 with the wind.

[0042] Preferably, in step S4, the temperature range of the high-speed medium-temperature air flow is 80 - 120 °C.

[0043] Defining the temperature of the drying air flow can, on the one hand, avoid energy waste caused by too high a temperature, and on the other hand, ensure that the drying speed will not be too low.

[0044] Preferably, in step S5, the selected fine aggregates are transported to a building materials factory for use as building materials base materials.

[0045] It realizes the recycling of resources, and on the other hand, it can also reduce the backfilling volume, meeting the requirements of environmental protection.

[0046] Preferably, in step S6, the separated heavy aggregates are subjected to magnetic separation, and the magnetically separated heavy aggregates are backfilled in place.

[0047] Magnetically separate metal recyclables to improve the resource recovery rate.

[0048] Preferably, in step S6, the separated light waste is compressed and formed into a combustible derived fuel, which is then transported to an incineration power plant for incineration and power generation.

[0049] On the one hand, it avoids environmental pollution caused by light waste such as plastics, and on the other hand, it realizes the recycling of resources.

[0050] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention.

Claims

1. A device for recycling muddy soil mixed with light garbage, comprising a body (1), characterized in that: The machine body (1) is L-shaped, and a feed bin (2) is provided at the upper left corner of the machine body (1). A crushing roller (3) is rotatably connected to the lower part of the feed bin (2). Crushing teeth (31) that mesh with the crushing roller (3) are fixedly connected to the left inner wall of the machine body (1). A rolling roller (4) is rotatably connected to the downstream of the crushing roller (3). Air blower nozzles (5) are densely distributed on the inner wall of the machine body (1) downstream of the rolling roller (4). A drum crushing screen (6) is provided at the right outlet of the machine body (1), and a drum air separation screen (7) is provided at the outlet of the drum crushing screen (6).

2. The equipment for recycling muddy soil mixed with light garbage according to claim 1 is characterized in that: The rolling roller (4) comprises a thornless roller (41) and a thorny roller (42), wherein the thornless roller (41) is located upstream of the thorny roller (42).

3. The equipment for recycling muddy soil mixed with light garbage according to claim 1 is characterized in that: The drum crushing screen (6) has built-in sludge scrapers and crushing blades.

4. A method for recycling muddy soil mixed with light garbage, implemented based on the equipment described in any one of claims 1 to 3, characterized in that: The following steps are involved: S1, after the backhoe excavator digs out the muddy soil mixed with light garbage, it is divided into sections and stored in designated locations, and the bucket loader fills the muddy soil piled in the sections into the feed bin (2); S2, the crushing roller (3) crushes the muddy soil falling from the feed bin (2) into a thin layer and breaks down the large pieces of slag in the muddy soil into small pieces; S3, the thornless roller (41) rolls the muddy soil into a thin layer again, and the small pieces of slag in the muddy soil continue to be crushed, and the thorny roller (42) rolls on the muddy soil to form dense holes; S4, the air blast nozzle (5) swings at a constant speed and sends out a high-speed medium-temperature airflow, which flows rapidly on the surface and in the holes of the compacted silty soil. Under the dual promotion of the airflow and temperature, the thin layer of compacted silty soil dries rapidly; S5, the dried muddy soil enters the drum crushing screen (6), is crushed due to collision, and collides with the crushing blades built into the drum crushing screen (6) during the rolling process, and is accelerated to be decomposed into fine aggregates. The fine aggregates are screened out through the screen of the drum crushing screen (6), and the mud scraper built into the drum crushing screen (6) scrapes off the mud adhering to the inner wall of the drum; S6, the heavy aggregates and light garbage of larger sizes enter the drum air separation screen (7), and the drum air separation screen (7) blows air from the inlet, thereby separating the light garbage from the heavy aggregates. The heavy aggregates are screened out through the screen of the drum air separation screen (7), and the light garbage is blown out from the end outlet of the drum air separation screen (7).

5. The device and method for recycling muddy soil mixed with light garbage according to claim 4 is characterized in that: In step S4, the temperature of the high-speed medium-temperature airflow is in the range of 80-120°C.

6. The equipment for recycling muddy soil mixed with light garbage according to claim 4 is characterized in that: In step S5, the screened fine aggregate is transported to a building material factory for use as a building material base.

7. The equipment for recycling muddy soil mixed with light garbage according to claim 4, characterized in that: In the step S6, the separated heavy aggregate is subjected to magnetic separation, and the magnetically separated heavy aggregate is backfilled on site.

8. The equipment for recycling muddy soil mixed with light garbage according to claim 4 is characterized in that: In the step S6, the separated light waste is compressed and molded to form combustible-derived fuel, and then transported to an incineration power plant for incineration and power generation.

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