CN216918958U

CN216918958U - Shield constructs dregs greenization processing system

Info

Publication number: CN216918958U
Application number: CN202123250331.5U
Authority: CN
Inventors: 程争民; 冉寄蓉; 王瑞博; 吴海涛
Original assignee: CCCC SHEC Third Highway Engineering Co Ltd
Current assignee: CCCC SHEC Third Highway Engineering Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-08
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a shield muck greening treatment system which comprises a shield muck area, a silt separation area and a mud pressure filtration area, wherein after entering a column cage screen from a material conveying port, the shield muck is firstly screened for gravels with large particle sizes in the muck, the screened muck is conveyed to a dewatering screen by a stranding cage and then separated for silt, chemical components and soil in the muck are washed by flushing water in the screening process of the dewatering screen, the washed mud containing chemical agents and soil enters a mud pit, the screened soil in the column cage screen also enters the mud pit, sewage in the mud pit is conveyed to a sewage tank by a pump, a polymer flocculation material is added into a liquid medicine tank and then conveyed to a sedimentation tank, clear water after flocculation flows back to a clear water tank, flocculated clear water is conveyed to a mud filter press to form mud cakes, and clear water extruded out of the mud filter press flows back to the clear water tank for secondary utilization. The utility model can realize the treatment and recycling of the shield muck, and the whole treatment process has the advantages of water saving, material saving, no pollution and environmental protection.

Description

Shield constructs dregs greenization processing system

Technical Field

The utility model belongs to the technical field of the shield constructs the construction, concretely relates to shield constructs dregs greenization processing system.

Background

In the shield construction process, foam, bentonite and the like are used, so that the muck of the earth pressure shield contains a surface

The surfactant is difficult to dry in the sun, has high fluidity, and occupies large area of land along with the increase of the amount of the slag soil of the urban shield

Gradually enlarged, and mainly stacked in the open air. If the shield muck enters the receiving field without being subjected to environmental protection treatment, the contained bubbles

Once entering the water body, the foaming agent can generate a large amount of foam, which influences normal production and life and simultaneously causes microorganisms in water

Are adversely affected. Most cities do not make an effective and reasonable scheme for stacking dregs, occupy large space and stack dregs

Disorder, worsening the urban environmental sanitation, being incompatible with the urban beautification and civilization development and affecting the urban environment

The image is directly buried in a mine hole or accumulated in a large amount without treatment, and potential geological disasters can be caused. Meanwhile, as the dregs contain chemical components, the transportation and stacking of the dregs in a conventional mode have great influence on the environment, and the dregs contain high-quality loess and a small amount of yellow sand, so that the direct discharge causes resource waste.

Disclosure of Invention

The utility model provides a shield muck greening treatment system, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a shield constructs dregs greenization processing system, includes shield structure dregs district, silt disengaging zone, mud filter-press district, shield structure dregs district is used for carrying original dregs to silt disengaging zone, and the silt disengaging zone sieves original dregs and mud separation, and mud filter-press district carries out the separation and retrieves after flocculating the mud after will separating.

Preferably, the shield constructs the dregs district and includes belt feeder and excavator, the excavator transports original dregs to the belt feeder, the belt feeder transports original dregs to the silt separation district.

Preferably, the silt separation zone includes post cage sieve, hank cage, dewatering screen, mud pit, large granule feed bin, finished product feed bin, the exit linkage of the feed inlet of post cage sieve and defeated material mechanism sieves original dregs, transports to the large granule feed bin after the large granule screening, and other dregs are carried to dewatering screen by the hank cage and are separated silt out, and silt is transported to the finished product feed bin, and mud is carried to the mud pit.

Preferably, mud filter-pressing district includes sewage jar, gunbarrel, clear water jar, medicine water jar, pressure filter, mud cake storehouse, the sewage jar is connected with the mud pit, medicine water jar, sewage jar and gunbarrel are connected, carry out the flocculation with sewage, the gunbarrel top sets up the pipeline and is connected with the clear water jar, and the bottom sets up the pipeline and carries silt to the pressure filter and extrude the mud cake to carry to the mud cake storehouse.

Preferably, the filter press is connected with a clean water tank through a clean water pipe, and the squeezed water is recycled.

Preferably, still include the protection canopy, the protection canopy seals to be set up on shield constructs dregs district, silt separation district, mud filter-pressing district, keeps apart noise and raise dust, noise reduction and dust pollution.

Preferably, a polymer flocculation material is stored in the liquid medicine tank.

Preferably, the polymeric flocculating material is polyacrylamide.

Preferably, the dewatering screen is further connected with a washing pipeline, chemical components and soil in the residue soil are washed in the screening process, and the washed mud containing chemical agents and soil enters the mud tank.

The utility model has the beneficial effects that: the shield residual soil treatment method has the advantages of water saving, material saving, environmental friendliness and the like by treating the shield residual soil.

1. In the treatment process, no sewage flows outwards, all water is recycled, the sewage # slurry pond from the column cage sieve and the dewatering sieve enters the sewage tank, and the clean water from the settling tank and the slurry filter press enters the clean water tank for secondary recycling, so that water resources are greatly saved;

2. the sand produced by the method is mainly used for shield synchronous grouting, and the produced mud cake is used for station roof backfilling, so that local materials are used, the utilization rate is improved, and less external transportation environmental pollution is reduced;

3. the utility model is a totally enclosed factory operation, has low noise, no dust and no pollution, and treats the shield muck with chemical substances, thereby greatly relieving the pollution of the shield muck to the environment by outward transportation and stacking.

Drawings

Fig. 1 is a schematic structural diagram of a shield muck greening treatment system of the utility model.

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.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a shield constructs dregs greenization processing system, includes shield structure dregs district, silt disengaging zone, mud filter-press district, shield structure dregs district is used for carrying original dregs to silt disengaging zone, and the silt disengaging zone sieves original dregs and mud separation, and mud filter-press district carries out the separation and retrieves after flocculating the mud after will separating.

Preferably, the polymeric flocculating material is polyacrylamide.

The working process of the utility model is as follows: stacking and gathering original muck in a shield muck area, sequentially conveying the original muck to a silt separation area and a slurry press-filtering area for treatment, conveying the treated large-particle materials to a large-particle bin, conveying yellow sand after silt separation to a finished product bin for shield synchronous grouting, and backfilling a top plate of a station with filter-pressed mud cakes. The mud separation zone comprises a column cage sieve, a twisting cage, a dewatering sieve and a mud pit, the mud press filtration zone comprises a sewage tank, a settling tank, a clear water tank, a liquid medicine tank, a filter press and a mud cake bin, after shield muck enters the column cage sieve from a material conveying port, large-particle-size gravel in the muck is firstly sieved, the large-particle-size gravel is conveyed to a large-particle bin, the sieved muck is conveyed to the dewatering sieve by the twisting cage to separate mud and sand, the mud is conveyed to a finished product bin, chemical components and soil in the muck are washed by flushing water in the sieving process of the dewatering sieve, the washed mud containing chemical agents and soil enters the mud pit, the soil sieved by the column cage sieve also enters the mud pit, the sewage in the mud pit is conveyed to a sewage tank by a pump, the sewage tank temporarily stores backflow through the sewage tank and is added with a polymer flocculating material (polyacrylamide) by the liquid medicine tank and then is conveyed to the settling tank, and clean water flows back to the clear water tank after short flocculation, the flocculated turbid body is conveyed to a slurry filter press by a pipeline to form a mud cake, clear water extruded by the filter press flows back to a clear water tank for secondary utilization, shield muck treatment and recycling are realized, and the whole treatment process also has the characteristics of water saving and environmental protection.

While the preferred embodiments of the utility model have been described, it is to be understood that the utility model is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a shield constructs dregs greenization processing system, its characterized in that, includes shield constructs dregs district, silt disengaging zone, mud filter-press district, shield constructs the dregs district and is used for carrying original dregs to the silt disengaging zone, and the silt disengaging zone sieves original dregs and mud separation, and mud filter-press district carries out the separation after flocculating with the mud after the separation and retrieves.

2. The shield muck greening treatment system according to claim 1, wherein the shield muck area comprises a belt conveyor and an excavator, the excavator transports original muck to the belt conveyor, and the belt conveyor transports the original muck to a mud and sand separation area.

3. The shield-tunneling muck greening treatment system according to claim 2, wherein the silt separation zone comprises a column cage screen, a twisting cage, a dewatering screen, a mud pit, a large-particle bin and a finished product bin, a feed inlet of the column cage screen is connected with an outlet of a conveying mechanism to screen original muck, the large particles are conveyed to the large-particle bin after being screened, other muck is conveyed to the dewatering screen by the twisting cage to separate silt, the silt is conveyed to the finished product bin, and mud is conveyed to the mud pit.

4. The shield constructs dregs greenization processing system of claim 3, characterized in that, mud filter-pressing district includes sewage tank, gunbarrel, clean water jar, medicine water jar, pressure filter, mud cake storehouse, the sewage tank is connected with the mud pit, medicine water jar, sewage tank and gunbarrel are connected, carry out the flocculation with sewage, the gunbarrel top sets up the pipeline and is connected with clean water jar, and the bottom sets up the pipeline and carries silt to the pressure filter and extrude the mud cake and carry to the mud cake storehouse.

5. The shield muck greening treatment system according to claim 4, wherein the filter press is connected with a clean water tank through a clean water pipe, and the squeezed water is recycled.

6. The shield muck greening treatment system according to claim 1, further comprising a protection shed, wherein the protection shed is arranged on the shield muck area, the silt separation area and the mud pressure filtration area in a sealed manner, so that noise and dust are isolated, and noise and dust pollution are reduced.

7. The shield muck greening treatment system according to claim 4, wherein a polymer flocculation material is stored in the liquid medicine tank.

8. The shield muck greening treatment system according to claim 7, wherein the polymeric flocculation material is polyacrylamide.

9. The shield muck greening treatment system according to claim 3, wherein a washing pipeline is further connected to the dewatering screen, chemical components and soil in the muck are washed in the screening process, and the washed mud containing chemical agents and soil enters a mud tank.