CN220611701U

CN220611701U - Shield soil treatment system

Info

Publication number: CN220611701U
Application number: CN202322083280.4U
Authority: CN
Inventors: 张弘伟; 郭权锋; 姚建明; 李兴杰; 范正锐; 张德洲
Original assignee: China ENFI Engineering Corp; China Nonferrous Metals Engineering Co Ltd
Current assignee: China ENFI Engineering Corp; China Nonferrous Metals Engineering Co Ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-03-19
Anticipated expiration: 2033-08-03

Abstract

The utility model discloses a shield soil treatment system, which comprises a first sand washing module, a crushing module, a screening module, a second sand washing module, a dewatering module, a thickening tank, a filter press and a brick making module, wherein solid matters and liquid phase components in shield soil are separated and treated through the first sand washing module, the crushing module, the screening module, the second sand washing module, the dewatering module, the thickening tank, the filter press and the brick making module so as to realize harmless treatment on the shield soil, and in the shield soil treatment process, the solid matters in the shield soil are treated and classified to form various brick making raw materials and aggregates so as to improve the quality of bricks, and the brick making is carried out through the solid matters separated by the shield soil so as to realize recycling utilization of the shield soil.

Description

Shield soil treatment system

Technical Field

The utility model relates to the technical field of shield soil treatment, in particular to a shield soil treatment system.

Background

The shield soil is the flowing state dregs generated by the shield machine in the tunneling process of subways, tunnels and the like, the shield soil contains foaming agent and high molecular polymer, and if the shield soil enters a digestion site without environmental protection treatment, the foaming agent in the shield soil can cause adverse effect on microorganisms in water once entering a water body. In addition, because the shield soil contains the surfactant, the fluidity is high, and if the mine holes are directly filled or piled up in a large amount, potential geological hazards can be caused.

Because the shield soil has higher water content and higher viscosity, the related treatment technology cannot carry out harmless treatment on the shield soil, and the related treatment technology cannot utilize materials generated after the shield soil is treated.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides a shield soil treatment system which can carry out harmless treatment and resource utilization on shield soil.

The shield soil treatment system of the embodiment of the utility model comprises: the device comprises a first sand washing module, a crushing module, a screening module, a second sand washing module, a dehydration module, a thickening tank, a filter press and a brick making module. The first sand washing module is provided with a shield soil inlet, a slurry outlet and a gravel mixture outlet; the crushing module is provided with a first material inlet, a gravel mixture inlet and a crushed material outlet, and the gravel mixture inlet is connected with the gravel mixture outlet; the screening module is provided with a crushed material inlet, a first material outlet for discharging a first material, a second material outlet for discharging a second material and a third material outlet for discharging a third material, wherein the crushed material inlet is connected with the crushed material outlet, and the first material outlet is connected with the first material inlet. The granularity of the first material is larger than a first preset granularity, the granularity of the second material is smaller than or equal to the first preset granularity and larger than a second preset granularity, and the granularity of the third material is smaller than or equal to the second preset granularity; the second sand washing module is provided with a third material inlet, a first muddy water outlet for discharging first muddy water and a fine sand outlet for discharging fine sand, and the third material inlet is connected with the third material outlet; the dehydration module is provided with a fine sand inlet, a second muddy water outlet for discharging second muddy water and a fine aggregate outlet for discharging fine aggregate, and the fine sand inlet is connected with the fine sand outlet; the thickening tank is provided with a first muddy water inlet, a second muddy water inlet and a first sediment outlet for discharging first sediment, the first muddy water inlet is connected with the first muddy water outlet, and the second muddy water inlet is connected with the second muddy water outlet; the filter press is provided with a filter pressing inlet and a filter pressing outlet for discharging mud cakes, and the filter pressing inlet is connected with the first sediment outlet; the brick making module is provided with a mud cake inlet, a second material inlet and a fine aggregate inlet, wherein the mud cake inlet is connected with the filter pressing outlet, the second material inlet is connected with the second material outlet, and the fine aggregate inlet is connected with the fine aggregate outlet.

According to the shield soil treatment system, solid matters and liquid phase components in shield soil are separated and treated through the first sand washing module, the crushing module, the screening module, the second sand washing module, the dewatering module, the thickening tank, the filter press and the brick making module, so that harmless treatment of the shield soil is realized, in the shield soil treatment process, the solid matters in the shield soil are treated and classified, so that the solid matters form various brick making raw materials and aggregates to improve the quality of bricks, and the brick making is performed through utilizing the solid matters separated from the shield soil, so that the resource utilization of the shield soil is realized.

In some embodiments, the shield soil treatment system further comprises a slurry treatment module having a slurry inlet, a silt outlet for discharging silt and a first clear water outlet for discharging first clear water, the slurry inlet and the slurry outlet being connected.

In some embodiments, the brick making module further has a silt inlet connected to the silt outlet.

In some embodiments, the first sand washing module further has a first clean water inlet connected to the first clean water outlet.

In some embodiments, the shield soil treatment system further comprises a water treatment module having a supernatant inlet and a second clear water outlet, the thickening tank further having a supernatant outlet, the supernatant outlet being connected to the supernatant inlet.

In some embodiments, the water treatment module includes a lagoon having the supernatant inlet and a wastewater outlet, and a clean water basin having a wastewater inlet and a second clean water outlet, the wastewater outlet being connected to the wastewater inlet.

In some embodiments, the filter press further has a press filtrate outlet for discharging press filtrate, the press filtrate outlet being connected to the supernatant inlet.

In some embodiments, the second sand washing module further comprises a second clean water inlet connected with the second clean water outlet.

In some embodiments, the lagoon further has a second sediment outlet, and the thickening tank further has a second sediment inlet coupled to the second sediment outlet.

In some embodiments, the first predetermined particle size is 25 millimeters and the second predetermined particle size is 5 millimeters.

Drawings

FIG. 1 is a schematic diagram of a shield soil treatment system according to an embodiment of the present utility model.

Reference numerals:

100. a shield soil treatment system; 1. a first sand washing module; 2. a crushing module; 3. a screening module; 4. a second sand washing module; 5. a dehydration module; 6. a thickening tank; 7. a filter press; 8. a brick making module; 9. a mud treatment module; 10. a water treatment module;

11. a shield soil inlet; 12. a slurry outlet; 13. a gravel mixture outlet; 14. a first clean water inlet;

21. a gravel mixture inlet; 22. a crushed material outlet; 23. a first material inlet;

31. a crushed material inlet; 32. a first material outlet; 33. a second material outlet; 34. a third material outlet;

41. a third material inlet; 42. a first slurry outlet; 43. a fine sand outlet; 44. a second clean water inlet;

51. fine sand inlet; 52. a second slurry outlet; 53. fine aggregate outlet;

61. a first slurry inlet; 62. a second slurry inlet; 63. a first precipitate outlet; 64. a supernatant outlet; 65. a second precipitate inlet;

71. a filter pressing inlet; 72. a filter pressing outlet; 73. a filter pressing liquid outlet;

81. a mud cake inlet; 82. a second material inlet; 83. fine aggregate inlet; 84. a silt inlet;

91. a slurry inlet; 92. a silt outlet; 93. a first clear water outlet;

101. a supernatant inlet; 102. a second clear water outlet; 103. a sewage pool; 104. a clean water tank;

1031. a sewage outlet; 1032. a second precipitate outlet; 1041. and a sewage inlet.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A shield soil treatment system 100 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1, a shield soil treatment system 100 according to an embodiment of the first aspect of the present utility model includes: the device comprises a first sand washing module 1, a crushing module 2, a screening module 3, a second sand washing module 4, a dehydration module 5, a thickening tank 6, a filter press 7 and a brick making module 8.

The first sand washing module 1 has a shield soil inlet 11, a slurry outlet 12 and a gravel mixture outlet 13.

The shield soil enters the first sand washing module 1 from the shield soil inlet 11, the first sand washing module 1 performs slag-slurry separation on the shield soil to separate the shield soil into slurry and gravel mixture, the solid and liquid phase components of the shield soil are primarily separated for subsequent treatment, the slurry is discharged from the slurry outlet 12, and the gravel mixture is discharged from the gravel mixture outlet 13.

The crushing module 2 has a first material inlet 23, a gravel mixture inlet 21 and a crushed material outlet 22, the gravel mixture inlet 21 being connected to the gravel mixture outlet 13.

The gravel mixture is crushed by entering the crushing module from the gravel mixture inlet 21 to reduce the particle size of the solids, and crushed material is discharged from the crushed material outlet 22.

The screening module 3 has a crushed material inlet 31, a first material outlet 32 for discharging a first material, a second material outlet 33 for discharging a second material and a third material outlet 34 for discharging a third material, the crushed material inlet 31 being connected to the crushed material outlet 22 and the first material outlet 32 being connected to the first material inlet 23. The granularity of the first material is larger than the first preset granularity, the granularity of the second material is smaller than or equal to the first preset granularity and larger than the second preset granularity, and the granularity of the third material is smaller than or equal to the second preset granularity.

Crushed material enters the screening module 3 through the crushed material inlet 31, and the screening module 3 screens the crushed material into a first material, a second material and a third material from large to small according to the first preset granularity and the second preset granularity.

The crushed materials are screened according to the particle size to obtain a first material, a second material and a third material, namely the materials are classified into the first material, the second material and the third material according to the first preset particle size and the second preset particle size, so that the materials with different particle sizes can be respectively processed later.

The granularity of the first material is larger, the quality of bricks can be influenced by directly making bricks with the first material, and the first material is discharged from the first material outlet 32 and then enters the crushing module 2 through the first material inlet 23 for crushing. The granularity of the second material is suitable for brick making, and the second material is used as recycled aggregate for brick making. The third material has a high water content and requires further processing.

The second sand washing module 4 has a third material inlet 41, a first muddy water outlet 42 for discharging the first muddy water, and a fine sand outlet 43 for discharging fine sand, and the third material inlet 41 and the third material outlet 34 are connected.

The third material enters the second sand washing module 4 from the third material inlet 41, and the second sand washing module performs slag-slurry separation on the third material to separate the third material into fine sand and first muddy water, i.e. separate solid matters and liquid phase components in the third material.

The dewatering module 5 has a fine sand inlet 51, a second muddy water outlet 52 for discharging the second muddy water, and a fine aggregate outlet 53 for discharging the fine aggregate, and the fine sand inlet 51 and the fine sand outlet 43 are connected.

The fine sand enters the dehydration module 5 through the fine sand inlet 51 for dehydration, the granularity of the fine sand is smaller than or equal to the second preset granularity, and the dehydrated fine sand is taken as fine aggregate to be discharged from the fine aggregate outlet 53 for brickmaking.

The thickener tank 6 has a first mud water inlet 61, a second mud water inlet 62, and a first sediment outlet 63 for discharging the first sediment, the first mud water inlet 61 being connected to the first mud water outlet 42, the second mud water inlet 62 being connected to the second mud water outlet 52.

The first muddy water enters the thickening tank 6 from the first muddy water inlet 61 for sedimentation, the second muddy water enters the thickening tank 6 from the second muddy water inlet 62 for sedimentation, the separation of solid matters and liquid phase components is realized in the thickening tank 6 by the first muddy water and the second muddy water, and the first sediment (solid matters) formed by the sedimentation of the first muddy water and the second muddy water in the thickening tank 6 is discharged from the first sediment outlet 63.

The filter press 7 has a filter press inlet 71 and a filter press outlet 72 for discharging the sludge cake, the filter press inlet 71 being connected to the first sediment outlet 63.

The first precipitate enters the filter press 7 from the filter pressing inlet 71, the filter press 7 filters the first precipitate into a mud cake, the water content in the mud cake is low, the mud cake is suitable for being used as a raw material for making bricks, and the mud cake is discharged from the filter pressing outlet 72.

The brick making module 8 is provided with a mud cake inlet 81, a second material inlet 82 and a fine aggregate inlet 83, wherein the mud cake inlet is connected with the filter pressing outlet 72, the second material inlet 82 is connected with the second material outlet 33, and the fine aggregate inlet 83 is connected with the fine aggregate outlet 53.

Mud cake enters the brick making module 8 from the mud cake inlet 81, second material enters the brick making module 8 from the second material inlet 82, fine aggregate enters the brick making module 8 from the fine aggregate inlet 83, and the brick making module 8 uses the second material as regenerated aggregate, fine sand as fine aggregate and mud cake as raw material to make bricks so as to increase the quality of bricks. In addition, bricks are made on the second material, the fine aggregate and the mud cake to realize the resource utilization of the shield soil.

Alternatively, the first material inlet 23 and the gravel mixture inlet 21 may be the same inlet or may be different inlets.

Alternatively, the first and second slurry inlets 61 and 62 may be one inlet, and the first and second slurry inlets 61 and 62 may be different inlets.

Optionally, the first sand washing module 1 is a sand washer.

Alternatively, the crushing module 2 is a cone crusher.

Optionally, the screening module 3 is a vibrating screen.

Optionally, the second sand washing module 4 is a spiral sand washer.

Optionally, the dewatering module 5 is a dewatering screen.

Alternatively, the filter press 7 is a plate and frame filter press.

Optionally, the brick making module 8 is a brick making production line.

The material with the granularity of more than 25 mm can influence the quality of bricks manufactured by the brick making module 8, and the material with the granularity of less than or equal to 25 mm and more than 5 mm is suitable for brick making, can be used as recycled aggregate for brick making, has higher water content and needs further treatment.

As shown in fig. 1, in some embodiments, the shield soil treatment system 100 further includes a slurry treatment module 9, the slurry treatment module 9 having a slurry inlet 91, a slurry outlet 92 for discharging the slurry sand, and a first clear water outlet 93 for discharging the first clear water, the slurry inlet 91 and the slurry outlet 12 being connected.

The mud generated by the first sand washing module 1 enters the mud treatment module 9 through the mud inlet 91 for treatment, and the mud treatment module 9 separates the mud into first clear water and silt so as to separate solid matters (silt) and liquid phase components (first clear water) in the mud, thereby realizing the treatment of the mud. The muddy sand is discharged from the muddy sand outlet 92, and the first clear water is discharged from the first clear water outlet 93.

In some embodiments, the brick making module 8 also has a silt inlet 84, the silt inlet 84 being connected to a silt outlet 92.

The silt enters the brick making module 8 from the silt inlet 84 to be used for making bricks, and the shield soil is further recycled.

As shown in fig. 1, in some embodiments, the first sand washing module 1 further has a first clean water inlet 14, the first clean water inlet 14 being connected with a first clean water outlet 93.

The first clear water is used for washing sand of the shield soil so as to realize slag-slurry separation, the water consumption of the first sand washing module 1 is reduced, the liquid phase components in the shield soil are recycled, and the recycling of the shield soil is further realized.

As shown in fig. 1, in some embodiments, the shield soil treatment system 100 further includes a water treatment module 10, the water treatment module 10 having a supernatant inlet 101 and a second clear water outlet 102, the thickening tank 6 further having a supernatant outlet 64, the supernatant outlet 64 being connected to the supernatant inlet 101.

The supernatant in the thickening tank 6 is discharged from the thickening tank 6 through a supernatant outlet 64, the supernatant enters the water treatment module 10 through a supernatant inlet 101, the water treatment module 10 is used for treating the supernatant to obtain second clear water so as to realize the purification treatment of the supernatant, and the second clear water is discharged through a second clear water outlet 102.

In some embodiments, the filter press 7 further has a press liquor outlet 73 for discharging the press liquor, the press liquor outlet 73 being connected to the supernatant inlet 101.

The filter press 7 generates press filtrate in the press filtration process, the press filtrate is discharged from the press filtrate outlet 73, and the press filtrate enters the water treatment module 10 from the supernatant inlet 101 for water treatment so as to realize purification treatment of the press filtrate.

In some embodiments, the second sand washing module 4 further includes a second clean water inlet 44, the second clean water inlet 44 being connected to the second clean water outlet 102.

The second clean water enters the second sand washing module 4 through the second clean water inlet 44, and the third material is subjected to slag-slurry separation through the second clean water so as to reduce the water consumption of the second sand washing module 4, so that the liquid phase components in the shield soil are further recycled, and the recycling of the shield soil is further realized.

As shown in fig. 1, in some embodiments, the water treatment module 10 includes a lagoon 103 and a clean water basin 104, the lagoon 103 having a supernatant inlet 101 and a wastewater outlet 1031, the clean water basin 104 having a wastewater inlet 1041 and a second clean water outlet 102, the wastewater outlet 1031 being coupled to the wastewater inlet 1041.

Supernatant enters the sewage tank 103 through the supernatant inlet 101 to be precipitated, the supernatant is precipitated in the sewage tank 103 to form upper sewage and lower second precipitate, the precipitated sewage is discharged from the sewage tank 103 through a sewage outlet and enters the clean water tank 104 through the sewage inlet 1041 to be precipitated, and the precipitated second clean water is discharged from the clean water tank 104 through the second clean water outlet 102.

The supernatant is subjected to twice precipitation through the sewage tank 103 and the clean water tank 104 so as to reduce the solid content in the second clean water and improve the effect of the second clean water on the slag-slurry separation of the third material.

As shown in fig. 1, in some embodiments, the lagoon 103 further has a second sediment outlet 1032, and the thickening tank 6 further has a second sediment inlet 65, the second sediment inlet 65 being connected to the second sediment outlet 1032.

The second sediment in the sewage tank 103 is discharged out of the sewage tank 103 through a second sediment outlet 1032, enters the thickening tank 6 from the second sediment inlet 65 for sedimentation and is used for brickmaking through a subsequent process, and the shield soil is further utilized for recycling.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, may be internal to the two elements or in an interaction relationship between the two elements, unless otherwise specifically defined. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. A shield soil treatment system, comprising:

a first sand washing module having a shield soil inlet, a slurry outlet, and a gravel mixture outlet;

a crushing module having a first material inlet, a gravel mixture inlet, and a crushed material outlet, the gravel mixture inlet being connected to the gravel mixture outlet;

the screening module is provided with a crushed material inlet, a first material outlet for discharging a first material, a second material outlet for discharging a second material and a third material outlet for discharging a third material, wherein the crushed material inlet is connected with the crushed material outlet, the first material outlet is connected with the first material inlet, the granularity of the first material is larger than a first preset granularity, the granularity of the second material is smaller than or equal to the first preset granularity and larger than a second preset granularity, and the granularity of the third material is smaller than or equal to the second preset granularity;

the second sand washing module is provided with a third material inlet, a first muddy water outlet for discharging the first muddy water and a fine sand outlet for discharging fine sand, and the third material inlet is connected with the third material outlet;

the dehydration module is provided with a fine sand inlet, a second muddy water outlet for discharging second muddy water and a fine aggregate outlet for discharging fine aggregate, and the fine sand inlet is connected with the fine sand outlet;

the device comprises a thickening tank, a first filter and a second filter, wherein the thickening tank is provided with a first muddy water inlet, a second muddy water inlet and a first sediment outlet for discharging first sediment, the first muddy water inlet is connected with the first muddy water outlet, and the second muddy water inlet is connected with the second muddy water outlet;

the filter press is provided with a filter pressing inlet and a filter pressing outlet for discharging mud cakes, and the filter pressing inlet is connected with the first sediment outlet;

the brick making module is provided with a mud cake inlet, a second material inlet and a fine aggregate inlet, wherein the mud cake inlet is connected with the filter pressing outlet, the second material inlet is connected with the second material outlet, and the fine aggregate inlet is connected with the fine aggregate outlet.

2. The shield soil treatment system of claim 1, further comprising a slurry treatment module having a slurry inlet, a silt outlet for discharging silt and a first clear water outlet for discharging first clear water, the slurry inlet and the slurry outlet being connected.

3. The shield soil treatment system of claim 2, wherein the first sand washing module further has a first clear water inlet, the first clear water inlet being connected to the first clear water outlet.

4. The shield soil treatment system of claim 2, wherein the brick making module further has a silt inlet, the silt inlet being coupled to the silt outlet.

5. The shield soil treatment system of claim 1, further comprising a water treatment module having a supernatant inlet and a second clear water outlet, the thickening tank further having a supernatant outlet, the supernatant outlet being connected to the supernatant inlet.

6. The shield soil treatment system of claim 5, wherein the water treatment module comprises a lagoon having the supernatant inlet and a wastewater outlet, and a clear water basin having a wastewater inlet and a second clear water outlet, the wastewater outlet being connected to the wastewater inlet.

7. The shield soil treatment system of claim 6, wherein the lagoon further has a second sediment outlet, and the thickening tank further has a second sediment inlet coupled to the second sediment outlet.

8. The shield soil treatment system of claim 5, wherein the filter press further has a press filtrate outlet for discharging press filtrate, the press filtrate outlet being connected to the supernatant inlet.

9. The shield soil treatment system of claim 5, wherein the second sand washing module further comprises a second clear water inlet connected to the second clear water outlet.

10. The shield soil treatment system of claim 1, wherein the first predetermined particle size is 25 millimeters and the second predetermined particle size is 5 millimeters.