CN220550120U - Recycling treatment system for sludge and construction waste - Google Patents
Recycling treatment system for sludge and construction waste Download PDFInfo
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- CN220550120U CN220550120U CN202321070810.5U CN202321070810U CN220550120U CN 220550120 U CN220550120 U CN 220550120U CN 202321070810 U CN202321070810 U CN 202321070810U CN 220550120 U CN220550120 U CN 220550120U
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- sludge
- construction waste
- waste
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- 239000010802 sludge Substances 0.000 title claims abstract description 73
- 239000002699 waste material Substances 0.000 title claims abstract description 46
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000004064 recycling Methods 0.000 title claims abstract description 18
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 239000011449 brick Substances 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 9
- 238000012216 screening Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000001471 micro-filtration Methods 0.000 claims description 5
- 238000000108 ultra-filtration Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a recycling treatment system for sludge and construction waste, and belongs to the technical field of resources and environments. Comprising the following steps: sludge dewatering system, sewage purification system, construction waste treatment system, brickmaking system and system of making concrete. The utility model solves the problems of heavy load and serious environmental pollution of the landfill site, treats the waste sludge and the construction waste into bricks and concrete with high utilization value, realizes recycling of the waste, saves resources, reduces the landfill volume, and has remarkable environmental benefit and economic and social benefit.
Description
Technical Field
The utility model relates to a waste recycling treatment system, in particular to a sludge and construction waste recycling treatment system, and belongs to the technical field of resources and environment.
Background
In the treatment of town sewage, a large amount of excess sludge is produced. If these surplus sludge is not treated effectively, secondary pollution to the environment will be caused. The current state of treatment and disposal of municipal sludge in China: the purpose of sludge treatment is stabilization, reduction, harmlessness and recycling. The current disposal routes of the municipal administration in China are sludge agriculture, sludge landfill, sludge incineration, sludge ocean disposal and the like.
1. And (5) sludge landfill. Sludge landfills are increasingly limited in their application in view of the large amount of land they need to occupy. Landfill is currently the only, non-alternative, final disposal route when sludge has no recycling route but must be discharged from the material circulation. Compared with other sludge disposal schemes, the landfill disposal of the sludge has the advantages of low investment, low running cost, convenient management and operation and the like, and is also the most widely adopted at home and abroad at present. However, the sludge landfill disposal is disadvantageous in that the occupied area is large, and the service life of the disposal site is short, so that the disposal site is limited by the shortage of land.
2. And (5) agricultural sludge. The sludge is rich in nutrient substances, and if the sludge meets the requirements of agricultural regulations, the sludge is applied to agriculture, gardening and forestry, so that the material circulation in the nature is returned, and the problem of the final residue of the sludge can be truly solved. At present, sludge is mainly used for agriculture, such as sludge composting, sludge filling and the like. However, the farmland utilization of the sludge has some adverse factors that (1) the sludge possibly contains pathogenic bacteria, heavy metals and other toxic and harmful substances, (2) the required agricultural land area is large, (3) the transportation and construction plans of the sludge are complicated due to the influence of climate and the coordination with the crop sowing and harvesting period, and the cost is increased, and (4) the fertilizer efficiency of the sludge cannot compete with that of the fertilizer, so that the market problem exists. (5) The products planted by applying the sludge are psychologically unacceptable to consumers.
3. And (5) sludge incineration. The sludge incineration can destroy all organic substances, kill all pathogens, and reduce sludge to the maximum extent. When the combustion heat value of the sludge is high or the content of toxic substances in the sludge is high, the sludge is used for incineration when the urban sanitation requirement is also high. However, sludge incineration has the following disadvantages that (1) the investment and the operation cost of the sludge incineration are the most expensive in a sludge disposal method, so that the application of the sludge incineration is limited to a certain extent, (2) the sludge is not very high in heat value and the sludge treatment capacity of a sewage plant is not large, the power generation is generally difficult to be performed by utilizing the incineration waste heat, and (3) the problem of flue gas generated by the incineration needs to be provided with expensive treatment equipment to reach the related emission standard, and the problem of dioxin pollution is not solved until now.
4. And (5) disposing the sludge in the ocean. The marine disposal of sludge has the advantage of small investment, and the disadvantage of this method is that eutrophication is easy to form. The environmental impact on ocean disposal waters is great and its use has been limited in recent years.
The construction waste is a type of waste which is difficult to treat, and has the problems of large volume, difficult recovery treatment and the like. Waste soil, waste materials and the like generated by the buildings, structures, pipe networks and house decorations not only waste resources, but also pollute water, soil and air if the waste materials and the waste materials are not properly treated.
At present, the main treatment method of the construction waste in China is to bury the construction waste underground. But it causes serious environmental pollution to the environment. The building glue, paint and lacquer in the construction waste are not only high polymer materials which are difficult to biodegrade, but also harmful heavy metal elements. These wastes are buried in the ground, which causes pollution of ground water and directly endangers the lives of surrounding residents. Again, the soil structure is destroyed, resulting in subsidence of the earth's surface. The existing landfill method is as follows: after 8 meters of garbage is buried, a soil layer of 2 meters is buried, but vegetation is basically difficult to grow on the soil layer. The surface of the landfill area can be settled and sunk, and the stable state can be achieved after a long time.
In summary, sludge and construction waste, if improperly treated, can cause serious environmental pollution.
Disclosure of Invention
The utility model aims to treat and comprehensively recycle sludge and construction waste by adopting a proper method, and provides an environment-friendly and economical recycling treatment system for sludge and construction waste.
The utility model relates to a recycling treatment system for sludge and construction waste, which comprises the following components: the system comprises a sludge dewatering system, a sewage purification system, a construction waste treatment system, a brick making system and a concrete making system, wherein the sludge dewatering system comprises a dewatering machine, a centrifugal dewatering machine and a plate-frame filter pressing type dewatering machine, the sewage purification system comprises self-cleaning filtering equipment and ultrafiltration/microfiltration equipment, the construction waste treatment system comprises a crusher, primary screening equipment, a ball mill and secondary screening equipment, the brick making system comprises sintering equipment, and the concrete making system comprises a stirrer. By adopting the recycling treatment system, the process of recycling the sludge and the construction waste comprises the following steps: the sludge discharged from the sewage treatment plant firstly enters a sludge dewatering system and is dewatered by a dewatering machine to generate dry sludge and sewage; the dry sludge enters a brick making system again, clay and reinforcing agent are added, and bricks are made by sintering after sintering equipment; the sewage enters a sewage purification system and is treated by self-cleaning filtering equipment and ultrafiltration/microfiltration equipment to generate reuse water; the construction waste enters a construction waste treatment system, first primary fine aggregate and primary coarse aggregate are generated after being treated by a crusher and primary screening equipment, and second-stage coarse aggregate and second-stage fine aggregate are generated after part of primary coarse aggregate is treated by a ball mill and second-stage screening equipment; the recycled water, part of the primary coarse aggregate, the primary fine aggregate, the secondary coarse aggregate and the secondary fine aggregate enter a concrete making system, and the concrete is obtained after cement and additive are added, and the mixture enters a mixer to be mixed uniformly.
Aiming at the problems of serious pollution to the environment, limitation of land shortage and the like caused by the existing landfill mode adopted for most of the sludge and the construction waste, the utility model provides a recycling treatment system for the sludge and the construction waste, which comprehensively treats and utilizes the sludge and the construction waste to prepare bricks and concrete, can be widely applied to the fields of paving, construction and the like, reduces the environmental pollution and the land pressure, saves a large amount of land and water resources, realizes the comprehensive utilization of waste resources, and changes waste into valuable.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the following examples and fig. 1.
A system for recycling sludge and construction waste, comprising: the system comprises a sludge dewatering system, a sewage purification system, a construction waste treatment system, a brick making system and a concrete making system, wherein the sludge dewatering system comprises a dewatering machine, the dewatering machine is a plate-and-frame filter press, the sewage purification system comprises self-cleaning filtering equipment and ultrafiltration/microfiltration equipment, the construction waste treatment system comprises a crusher, primary screening equipment, a ball mill and secondary screening equipment, the brick making system comprises sintering equipment, and the concrete making system comprises a stirrer. By adopting the recycling treatment system of the embodiment, the process of recycling the sludge and the construction waste comprises the following steps: the sludge discharged from the sewage treatment plant firstly enters a sludge dewatering system and is dewatered by a dewatering machine to generate dry sludge and sewage; the dry sludge enters a brick making system again, clay and reinforcing agent are added, and bricks are made by sintering after sintering equipment; the sewage enters a sewage purification system and is treated by self-cleaning filtering equipment and ultrafiltration/microfiltration equipment to generate reuse water; the construction waste enters a construction waste treatment system, first primary fine aggregate and primary coarse aggregate are generated after being treated by a crusher and primary screening equipment, and second-stage coarse aggregate and second-stage fine aggregate are generated after part of primary coarse aggregate is treated by a ball mill and second-stage screening equipment; the recycled water, part of the primary coarse aggregate, the primary fine aggregate, the secondary coarse aggregate and the secondary fine aggregate enter a concrete making system, and the concrete is obtained after cement and additive are added, and the mixture enters a mixer to be mixed uniformly. The prepared brick is used for paving pavement of sidewalk, and the prepared concrete is used for building.
The utility model comprehensively treats the waste sludge to be buried and the construction waste to prepare bricks and concrete, avoids land occupation and serious environmental pollution caused by landfill, can be widely applied to the fields of paving, construction and the like, realizes waste recycling, and has remarkable environmental benefit and economic and social benefit.
Claims (1)
1. A system for recycling sludge and construction waste, comprising: the system comprises a sludge dewatering system, a sewage purification system, a construction waste treatment system, a brick making system and a concrete making system, wherein the sludge dewatering system comprises a dewatering machine, the sewage purification system comprises self-cleaning filtering equipment and ultrafiltration/microfiltration equipment, the construction waste treatment system comprises a crusher, primary screening equipment, a ball mill and secondary screening equipment, the brick making system comprises sintering equipment, and the concrete making system comprises a stirrer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321070810.5U CN220550120U (en) | 2023-05-08 | 2023-05-08 | Recycling treatment system for sludge and construction waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321070810.5U CN220550120U (en) | 2023-05-08 | 2023-05-08 | Recycling treatment system for sludge and construction waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220550120U true CN220550120U (en) | 2024-03-01 |
Family
ID=90005670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321070810.5U Active CN220550120U (en) | 2023-05-08 | 2023-05-08 | Recycling treatment system for sludge and construction waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220550120U (en) |
-
2023
- 2023-05-08 CN CN202321070810.5U patent/CN220550120U/en active Active
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