Waste slurry treatment device for slurry balance pipe jacking construction

Abstract

The utility model discloses a waste slurry treatment device for slurry balance pipe jacking construction, and relates to the field of slurry balance pipe jacking construction. Comprising a mud-water separator, a mud pool and a mud blending pool, the system further comprises a filter press, a mud cake pool and a filtrate pool; the system further comprises integrated sewage treatment equipment, a clean water tank and a water quality tester for detecting the water quality of filtrate. When the device is used and muddy water in the mud blending pool cannot be blended, the filter press receives the muddy water through the pump and treats the muddy water into mud cakes and filtrate; mud cakes fall into the mud cake pool and are directly carried away without polluting the environment, and filtrate enters the filtrate pool. When the water quality tester detects that the filtrate is qualified, the filtrate is pumped to the clean water tank, and then the clean water is pumped to the slurry blending tank according to the requirements of the slurry blending tank, so that the cyclic utilization of water resources is realized; and when the filtrate is unqualified, the filtrate is pumped to the integrated sewage treatment equipment for treatment, the treated clear water enters the clear water tank, and the steps are repeated to realize cyclic utilization of water resources.

Description

Technical Field

[0001] The utility model relates to the field of slurry balance pipe jacking construction, and particularly relates to a waste slurry treatment device for slurry balance pipe jacking construction. Background Art

[0002] During the construction of slurry balance pipe jacking, since the conveying medium is mainly slurry and water, a large amount of waste slurry will be generated during the construction. Measures are often taken in the slurry balance pipe jacking construction project to treat the waste slurry generated during the pipe jacking construction to prevent the waste slurry from polluting the environment. The conventional waste slurry treatment method for slurry balance pipe jacking only separates the waste slurry into mud water and slag, and then adjusts the ratio of the separated mud water before supplying it to the pipe jacking machine for recycling; this treatment method can realize the recycling of waste slurry, save resources, and also protect the environment. However, when the separated mud water cannot be adjusted to be qualified all the time, the mud water can only be directly transported away, which not only pollutes the environment but also fails to realize the recycling of resources.

[0003] Therefore, a waste slurry treatment device for slurry balance pipe jacking construction is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when the separated mud water cannot be adjusted to be qualified all the time, the mud water can only be directly transported away, which not only pollutes the environment but also fails to realize the recycling of resources.

[0005] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0006] A waste slurry treatment device for slurry balance pipe jacking construction includes a mud water separator, a mud pool, and a slurry preparation pool; the mud water separator is used to separate the slurry waste discharged from the mud water chamber of the pipe jacking machine into mud water and slag; the mud pool is located below the mud water outlet of the mud water separator; it also includes an electronic densitometer for detecting the density of the mud water; the slurry preparation pool receives the mud water in the mud pool through a pump;

[0007] It also includes a filter press, a mud cake pool, and a filtrate pool; when the mud water in the slurry preparation pool cannot be prepared well, the filter press receives the mud water through a pump and processes it into mud cakes and filtrate; the mud cake pool is placed below the mud cake outlet of the filter press; the filtrate pool receives the filtrate after the filter press filters through a pipeline;

[0008] It also includes an integrated sewage treatment device, a clean water pool, and a water quality detector for detecting the quality of the filtrate; when the water quality detector detects that the filtrate is qualified, the filtrate pool sends the filtrate into the clean water pool through a pump; when the water quality detector detects that the filtrate is unqualified, the filtrate pool sends the filtrate into the integrated sewage treatment device through a pump; the water outlet end of the integrated sewage treatment device is connected to the clean water pool through a pipeline; the clean water pool sends the clean water into the slurry preparation pool through a pump.

[0009] Further, it also includes a mud transfer pool; the mud transfer pool receives the prepared muddy water in the mud preparation pool through a pump.

[0010] Further, a mud mixer is provided in the mud preparation pool.

[0011] Further, plastic buckets are placed in the mud preparation pool; the plastic buckets float on the muddy water in the mud preparation pool; the mud mixer is connected below the plastic buckets.

[0012] Further, it also includes a waste mud pool; when the muddy water in the mud preparation pool cannot be prepared well, the waste mud pool receives the muddy water through a pump; the filter press receives the muddy water from the waste mud pool through a pump.

[0013] Further, it also includes a mud residue pool, a water inlet pipe, and a waste water pool; the mud residue pool is located below the slag outlet of the muddy water separator; the bottom plate of the mud residue pool slopes towards one end of the water inlet pipe, one end of the water inlet pipe is connected with a filter element, and the other end of the water inlet pipe leads to the waste water pool; the bottom plate of the mud residue pool is higher than the bottom plate of the waste water pool; the integrated sewage treatment equipment receives the water from the waste water pool through a sewage pump.

[0014] Further, both the mud residue pool and the mud cake pool have a structure with three-sided retaining walls and an open top.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] When the muddy water in the mud preparation pool cannot be prepared well, the filter press receives the muddy water through a pump and processes it into mud cakes and filtrate; the mud cakes fall into the mud cake pool, and the mud cakes are directly transported away without polluting the environment, and the filtrate enters the filtrate pool through a pipeline. The water quality detector detects the filtrate. When the water quality detector detects that the filtrate is qualified, the filtrate is pumped to the clear water pool, and then according to the needs of the mud preparation in the mud preparation pool, the clear water in the clear water pool is pumped to the mud preparation pool to realize the recycling of water resources; when the water quality detector detects that the filtrate is unqualified, the filtrate is pumped to the integrated sewage treatment equipment for treatment, and the treated clear water enters the clear water pool, and then the above steps are repeated to realize the recycling of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the use state of the present utility model.

[0018] The meanings of the reference numerals in the figure are as follows: 1, muddy water separator; 101, mud water pool; 102, mud residue pool; 103, cross beam; 2, mud preparation pool; 201, mud transfer pool; 202, mud pump; 3, waste mud pool; 301, filter press; 302, mud cake pool; 303, filtrate pool; 4, waste water pool; 401, integrated sewage treatment equipment; 402, clear water pool; 403, sewage pump; 404, water inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the specification and specific embodiments. The described embodiments are one of the embodiments of the present utility model, and the present utility model may also have other embodiments.

[0020] Embodiment:

[0021] See Figure 1 , a waste slurry treatment device for slurry balance pipe jacking construction of the present utility model includes a slurry separator 1, a slurry tank 101, and a slurry preparation tank 2; the slurry separator 1 is used to separate the slurry waste discharged from the slurry sump of the pipe jacking machine into slurry and slag; the slurry tank 101 is located below the slurry outlet of the slurry separator 1; it also includes an electronic densitometer for detecting the density of the slurry; the slurry preparation tank 2 receives the slurry in the slurry tank 101 through a pump;

[0022] It also includes a filter press 301, a filter cake tank 302, and a filtrate tank 303; when the slurry in the slurry preparation tank 2 cannot be properly prepared, the filter press 301 receives the slurry through a pump and processes it into filter cake and filtrate; the filter cake tank 302 is placed below the filter cake outlet of the filter press 301; the filtrate tank 303 receives the filtrate after filtration by the filter press 301 through a pipeline;

[0023] It also includes an integrated sewage treatment device 401, a clean water tank 402, and a water quality detector for detecting the water quality of the filtrate; when the water quality detector detects that the filtrate is qualified, the filtrate tank 303 sends the filtrate into the clean water tank 402 through a pump; when the water quality detector detects that the filtrate is unqualified, the filtrate tank 303 sends the filtrate into the integrated sewage treatment device 401 through a pump; the outlet end of the integrated sewage treatment device 401 is connected to the clean water tank 402 through a pipeline; the clean water tank 402 sends the clean water into the slurry preparation tank 2 through a pump.

[0024] In this embodiment, the slurry tank 101 is of reinforced concrete structure, with a cross beam 103 provided on the upper part, and the slurry separator 1 is located above the cross beam 103. After the mud and slag discharged from the slurry sump of the pipe jacking machine are separated by the slurry separator 1, the slurry flows into the slurry tank 101.

[0025] Use an electronic densitometer to detect whether the density of the slurry in the slurry tank 101 meets the requirements for recycling in pipe jacking construction. If it meets the requirements, it can be directly recycled. If it does not meet the requirements, the slurry in the slurry tank 101 is introduced into the slurry preparation tank 2; the slurry can be introduced into the slurry preparation tank 2 through a pump, or as Figure 1As shown in the figure, a connecting pipe is provided between the sludge pond 101 and the mud preparation pond 2, and a valve and a pump are provided on the connecting pipe to introduce the muddy water into the mud preparation pond 2. When the concentration of the muddy water is too high, the clear water in the clear water pond 402 is pumped into the mud preparation pond 2 until it is qualified; when the concentration of the mud in the mud preparation pond 2 is relatively low, additives such as sodium-based bentonite and high-viscosity CMC are added through experiments until the concentration is qualified by detecting with an electronic densitometer.

[0026] The integrated sewage treatment equipment 401 includes a coagulation pond, a sedimentation pond, and a media filter. A stirrer is provided inside the coagulation pond. The sewage treatment process of the integrated sewage treatment equipment 401 is as follows: First step, the sewage is introduced into the coagulation pond, the stirrer is turned on, and pac and pam are added into the coagulation pond. After a certain period of mixing reaction, the colloids and fine suspended solids in the wastewater are coagulated into flocs. Second step, the treated sewage in the coagulation pond is introduced into the sedimentation pond for sedimentation operation of separating mud and water; Third step, the supernatant after sedimentation in the sedimentation pond is then introduced into the media filter for filtration to remove the suspended solids in the wastewater, so as to obtain clear water that meets the requirements. The integrated sewage treatment equipment 401 can also adopt other methods in the prior art that can achieve sewage treatment into clear water.

[0027] When the muddy water in the mud preparation pond 2 cannot be prepared well, the filter press 301 receives the muddy water through a pump and processes it into mud cakes and filtrate; the mud cakes fall into the mud cake pond 302, and the mud cakes are directly transported away without polluting the environment. The filtrate enters the filtrate pond 303 through a pipeline. The water quality detector detects the filtrate. When the water quality detector detects that the filtrate is qualified, the filtrate is pumped to the clear water pond 402, and then according to the needs of the preparation in the mud preparation pond 2, the clear water in the clear water pond 402 is pumped to the mud preparation pond 2 to realize the recycling of water resources; when the water quality detector detects that the filtrate is unqualified, the filtrate is pumped to the integrated sewage treatment equipment 401 for treatment, and the treated clear water enters the clear water pond 402, and then the above steps are repeated to realize the recycling of water resources.

[0028] As a preferred embodiment, it further includes a mud transfer pond 201; the mud transfer pond 201 receives the prepared muddy water in the mud preparation pond 2 through a pump.

[0029] In this embodiment, when the performance parameters of the muddy water in the mud preparation pond 2 meet the requirements, the mud pump 202 is used to pump the mud water into the mud transfer pond 201, and the qualified mud in the mud transfer pond 201 is pumped into the sludge pond 101 for recycling according to the needs. The mud transfer pond 201 mainly plays a role in temporarily storing the prepared muddy water, so as to make room for the mud preparation pond 2 and the sludge pond 101, so that they have space to process the muddy water continuously entering the sludge pond 101.

[0030] As a preferred embodiment, a mud mixer is provided in the mud preparation tank 2.

[0031] In this embodiment, the mud mixer is used to stir the mud and water to prevent the mud and water from forming a semi-cured state after long-term storage, which is difficult to pump.

[0032] As a preferred embodiment, a plastic bucket is placed in the mud preparation tank 2; the plastic bucket floats on the mud and water in the mud preparation tank 2; the mud mixer is connected below the plastic bucket.

[0033] In this embodiment, the mud mixer is connected below the plastic bucket and is located inside the mud and water, so that the mud mixer can better stir the mud and water.

[0034] As a preferred embodiment, a waste mud tank 3 is further included; when the mud and water in the mud preparation tank 2 cannot be properly prepared, the waste mud tank 3 receives the mud and water through a pump; the filter press 301 receives the mud and water from the waste mud tank 3 through a pump.

[0035] In this embodiment, when the mud in the mud preparation tank 2 cannot be prepared qualifiedly, it is first pumped to the waste mud tank 3 for temporary storage, so as to make room for the mud preparation tank 2 and allow it to continue the preparation operation.

[0036] As a preferred embodiment, a mud residue tank 102, a water inlet pipe 404, and a waste water tank 4 are further included; the mud residue tank 102 is located below the slag outlet of the mud-water separator 1; the bottom plate of the mud residue tank 102 slopes towards one end of the water inlet pipe 404, one end of the water inlet pipe 404 is connected with a filtering member, the other end of the water inlet pipe 404 leads to the waste water tank 4; the bottom plate of the mud residue tank 102 is higher than the bottom plate of the waste water tank 4; the integrated sewage treatment equipment 401 receives the water from the waste water tank 4 through a sewage pump 403.

[0037] In this embodiment, the bottom plate of the mud residue tank 102 is higher than the top of the waste water tank 4. One end of the water inlet pipe 404 is wrapped with geotextile to prevent sundries such as stone slag from blocking the pipe and affecting the drainage effect; other filtering objects that can play a filtering role can also be used at one end of the water inlet pipe 404 to filter sundries such as stone slag. The bottom of the mud residue tank 102 slopes towards one end of the water inlet pipe 404, and the waste water precipitated from the slag in the mud residue tank 102 is drained into the waste water tank 4. The waste water is pumped into the integrated sewage treatment equipment 401 through the sewage pump 403, and the qualified treated clear water is discharged into the clear water tank 402. In this way, the slag after the waste slurry treatment in the mud balance pipe jacking construction is dehydrated, avoiding the direct transportation of the water-containing slag and polluting the environment. Moreover, the clear water in the treated clear water tank 402 can be pumped into the mud preparation tank 2 for reuse, saving resources.

[0038] As a preferred embodiment, both the mud residue tank 102 and the mud cake tank 302 have a structure with three-sided retaining walls and an open top.

[0039] In this embodiment, the sludge pit 102 and the mud cake pit 302 adopt a structure with three-sided retaining walls and an open top, which is convenient for the loader to load and transport the slag and mud cake, improving the transfer efficiency.

[0040] The terms "connection", "fixation", and "butt joint" that appear in the description of the present utility model can be fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present utility model should be understood according to the specific circumstances.

[0041] In the description of the present utility model, the terms "inner", "upper", "lower", "end", "side", "outer", etc. indicate the orientation or positional relationship only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying a specific orientation that the device or element must have. Therefore, it should not be construed as a limitation to the present utility model.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A device for treating waste slurry in mud-water balance pipe jacking construction, characterized in that: The invention comprises a mud-water separator (1), a mud-water pool (101), and a mud mixing pool (2); the mud-water separator (1) is used to separate mud waste discharged from the mud-water bin of the pipe jacking machine into mud-water and slag; the mud-water pool (101) is located below the mud-water outlet of the mud-water separator (1); and also comprises an electronic density meter for detecting the density of mud-water; the mud mixing pool (2) receives the mud-water in the mud-water pool (101) through a pump; It also includes a filter press (301), a mud cake pool (302), and a filtrate pool (303); when the mud and water in the mud mixing pool (2) cannot be mixed properly, the filter press (301) receives the mud and water through a pump and processes it into a mud cake and a filtrate; the mud cake pool (302) is placed below the mud cake outlet of the filter press (301); the filtrate pool (303) receives the filtrate after filtering by the filter press (301) through a pipeline; It also includes an integrated sewage treatment device (401), a clean water tank (402), and a water quality meter for detecting the water quality of the filtrate; when the water quality meter detects that the filtrate is qualified, the filtrate tank (303) sends the filtrate into the clean water tank (402) through a pump; when the water quality meter detects that the filtrate is unqualified, the filtrate tank (303) sends the filtrate into the integrated sewage treatment device (401) through a pump; the water outlet of the integrated sewage treatment device (401) is connected to the clean water tank (402) through a pipeline; and the clean water tank (402) sends clean water into the mud mixing tank (2) through a pump.

2. A device for treating waste slurry in mud-water balance pipe jacking construction according to claim 1, characterized in that: It also includes a mud transfer pool (201); the mud transfer pool (201) receives the prepared mud water in the mud mixing pool (2) through a pump.

3. A device for treating waste slurry in mud-water balance pipe jacking construction according to claim 1, characterized in that: A mud mixer is provided in the mud mixing tank (2).

4. A device for treating waste slurry in mud-water balance pipe jacking construction according to claim 3, characterized in that: A plastic barrel is placed in the mud mixing pool (2); the plastic barrel floats on the mud water in the mud mixing pool (2); and the mud mixer is connected below the plastic barrel.

5. The device for treating waste slurry in mud-water balance pipe jacking construction according to claim 1, characterized in that: It also includes a waste slurry pool (3); when the slurry and water in the slurry mixing pool (2) cannot be mixed properly, the waste slurry pool (3) receives the slurry and water through a pump; and the filter press (301) receives the slurry and water from the waste slurry pool (3) through a pump.

6. The device for treating waste slurry in mud-water balance pipe jacking construction according to claim 1, characterized in that: It also includes a sludge pool (102), a water diversion pipe (404), and a wastewater pool (4); the sludge pool (102) is located below the sludge outlet of the sludge-water separator (1); the bottom plate of the sludge pool (102) slopes toward one end of the water diversion pipe (404), one end of the water diversion pipe (404) is connected to a filter element, and the other end of the water diversion pipe (404) leads to the wastewater pool (4); the bottom plate of the sludge pool (102) is higher than the bottom plate of the wastewater pool (4); and the integrated sewage treatment equipment (401) receives water from the wastewater pool (4) through a sewage pump (403).

7. A device for treating waste slurry in mud-water balance pipe jacking construction according to claim 6, characterized in that: The sludge pool (102) and the mud cake pool (302) are both open structures with retaining walls on three sides.

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