CN216336961U - Slurry treatment system based on flocculation combined soil engineering pipe bag method - Google Patents
Slurry treatment system based on flocculation combined soil engineering pipe bag method Download PDFInfo
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- CN216336961U CN216336961U CN202122121898.6U CN202122121898U CN216336961U CN 216336961 U CN216336961 U CN 216336961U CN 202122121898 U CN202122121898 U CN 202122121898U CN 216336961 U CN216336961 U CN 216336961U
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- 239000002002 slurry Substances 0.000 title claims abstract description 72
- 239000002689 soil Substances 0.000 title claims abstract description 39
- 238000005189 flocculation Methods 0.000 title claims abstract description 23
- 230000016615 flocculation Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000008394 flocculating agent Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000002699 waste material Substances 0.000 claims description 26
- 238000012216 screening Methods 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims 2
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 239000004746 geotextile Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 208000005156 Dehydration Diseases 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007613 slurry method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The utility model provides a slurry treatment system based on a flocculation combined soil engineering pipe bag method. The mud separating device system comprises a rotary screen, a soil collecting pit, a cyclone, a circulating pool, a dewatering screen and a water pool; the slurry flocculation system comprises a stirring tank, a treatment tank and a soil engineering pipe bag, wherein a flocculating agent adding pipeline is connected with the stirring tank, the treatment tank is close to the soil engineering pipe bag, and the soil engineering pipe bag is piled on the periphery of the treatment tank; the method mainly comprises the steps of separating mud, and rapidly dehydrating by matching a flocculating agent with a geotextile tube bag method. Firstly, performing solid-liquid separation by using a traditional process, and then adding a flocculating agent into mud containing larger particles to fill the mud into a soil engineering pipe bag for rapid dehydration; the utility model also provides a flocculant proportioning scheme involved in the slurry treatment method. The utility model can realize the rapid dehydration decrement of the residue soil slurry, and the dehydrated residue soil can be directly transported or reused, thereby being efficient and environment-friendly.
Description
Technical Field
The utility model belongs to the field of slurry treatment, and particularly relates to a slurry treatment system based on a flocculation combined earthwork pipe bag method.
Background
In a large construction project, a large amount of waste slurry which cannot be recycled is often generated in the construction process, so that the construction site is occupied, and the surrounding environment is damaged. For example, during the construction of a large-diameter slurry shield tunnel, a large amount of waste slurry with high water content is generated, and the waste slurry is difficult to transport outside, thereby seriously affecting the land use planning and resource allocation of a construction site. At present, the waste slurry is commonly subjected to filter-pressing dehydration treatment by a filter-pressing type plate machine, but the mode has more restriction factors, and if the treated slurry has a certain concentration requirement, the noise generated during the work is larger. Therefore, in order to solve the problem of accumulation of a large amount of waste slurry, it is necessary to find a high-efficiency and environment-friendly waste slurry method.
Disclosure of Invention
The utility model aims to provide a slurry treatment system based on a flocculation combined soil engineering pipe bag method, which is efficient and environment-friendly.
In order to solve the technical problems, according to one aspect of the utility model, the utility model provides a slurry treatment system based on a flocculation combined geotube bag method, which comprises a slurry separation device system and a slurry flocculation system; the mud separating device system comprises a rotary screen, a soil collecting pit, a cyclone, a circulating pool, a dewatering screen and a water pool; the slurry flocculation system comprises a stirring tank, a treatment tank and a soil engineering pipe bag;
the rotary screen is used for receiving and separating initial waste slurry, and the soil collection pit is connected with the rotary screen and used for collecting large clay stones preliminarily separated by the rotary screen; the cyclone is connected with the drum screen through a pipeline and is used for collecting the mud separated by the drum screen and separating the mud again; the circulation tank is connected with the cyclone through a pipeline and used for receiving slurry below 40um obtained by separation, the dewatering screen is connected with the cyclone and used for receiving particle slurry above 40um obtained by separation of the cyclone and carrying out mud-water separation again on the particle slurry, the stirring tank is used for collecting waste residue and slurry obtained by mud-water separation of the dewatering screen, and the water tank is connected with the dewatering screen and used for storing clear liquid separated by the dewatering screen;
the stirring tank is used as a place for adding a flocculating agent, a flocculating agent adding pipeline is connected with the stirring tank, the stirring tank is connected with a treatment pool, and the treatment pool is used for performing slurry flocculation reaction; the treatment pool is connected with the water pool through a water pump and is used for pumping supernatant liquor of the treatment pool to the water pool; the treatment tank is provided with a submersible silt pump which is used for pumping the flocculated waste residues into the soil engineering pipe bag.
Preferably, a screening device is arranged between the dewatering screen and the stirring tank, and the screening device is used for receiving and screening waste residues and slurry obtained after mud-water separation of the dewatering screen; the aperture of the screen mesh is 1 mm.
Preferably, the screening device is connected with the stirring tank, and the screened particles with the size less than 1mm are sent to the stirring tank; and (4) conveying the particles with the size larger than 1mm obtained by screening by the screening device into the soil collecting pit.
Mud and clean water among all parts are conveyed through pipelines, and a sediment pump or a water pump can be arranged on the pipelines as required to provide conveying power. Large-size particles, waste residues, clay and the like among all the parts are conveyed through a conveying device or conveying equipment, and for example, solid materials such as the particles, the waste residues and the like can be conveyed by a material conveying belt. Preferably, the rolling sieve is connected with the soil collection pit through a material conveying belt, and the dewatering sieve is connected with the cyclone through a material conveying belt; the screening device is connected with the soil collecting pit and the dewatering screen through a material conveying belt.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the system is used for conveying slurry among equipment through pipelines, and conveying solid waste residues and stones through a conveyor belt and the like; the flocculant is doped in the slurry pumping process and the soil engineering pipe bag is used for processing, so that the rapid dewatering reduction of the muck slurry can be realized compared with the traditional system, and the influence of small noise on the surrounding environment is small.
(2) The geotechnical pipe bag has strong applicability to slurry with different water contents and different components, is matched with a flocculating agent for flexible use, can accelerate the full mixing reaction of the slurry and the flocculating agent, and can adjust the slurry with different quantities at any time.
(3) The earthwork tube bag can be randomly stacked, the occupied area is small, the outward transportation is convenient, and the requirement on a construction site is small.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Figure 2 is a cross-sectional view of the geotube bag of the present invention.
FIG. 3 is a top plan view of the mud separation system arrangement of the present invention.
FIG. 4 is a view of the apparatus of the process of the present invention.
Description of reference numerals: 1. a slurry inlet of the soil engineering pipe bag; 2. a soil engineering pipe bag; 3. a soil collecting pit; 4. a circulation tank; 5. a treatment tank; 6. a drum screen; 7. a cyclone screen; 8. a stirring tank; 9. dewatering screen; 10. a pool.
Detailed Description
The utility model will be further described with reference to specific embodiments, but the scope of the utility model is not limited thereto.
As shown in fig. 1-4, the slurry treatment system based on the flocculation combined geotextile tube bag method comprises a slurry separation device system and a slurry flocculation system; the mud separating device system comprises a rotary screen 6, a soil collecting pit 3, a swirler 7, a circulating pool 4, a dewatering screen 9 and a water pool 10; the mud flocculation system comprises a stirring tank 8, a treatment tank 5 and a soil engineering pipe bag 1;
the rotary screen 6 is used for separating initial waste slurry, the soil collection pit 3 is used for collecting large clay blocks preliminarily separated by the rotary screen 6, and the cyclone 7 is used for collecting the slurry separated by the rotary screen and separating the slurry again according to the 40um particle standard; the circulation tank 4 receives slurry with the particle size below 40um obtained by separation of the cyclone 7, the dewatering screen 9 carries out mud-water separation again on the particle slurry with the particle size above 40um obtained by separation of the cyclone 7, the stirring tank 8 collects waste residues and slurry primarily dewatered by the dewatering screen 9, and the water tank 10 stores clear liquid separated by the dewatering screen;
the stirring tank 8 is used as a place for adding a flocculating agent, a flocculating agent adding pipeline is connected with the stirring tank 8, the flocculating agent is added into the stirring tank 8, the fully mixed materials are sent into the treatment tank 5, the treatment tank 5 is used for performing slurry flocculation, and supernatant of the treatment tank 5 is pumped out to a water tank 10 through a water pump; and the flocculated waste residues in the treatment tank 5 are pumped into the soil engineering pipe bag 1 through a submersible sand pump, and the soil engineering pipe bag 1 is used for dewatering again, storing slurry and accelerating the drainage consolidation speed.
As shown in fig. 1, in an embodiment of the present invention, the sludge discharged from the shield working face is used as the engineering waste slurry to be treated, the sludge discharged from the shield working face is firstly fed into a rotary screen to screen out large clay lumps and stones, and is conveyed into a soil collecting pit through a material conveying belt, the slurry separated from the rotary screen is pumped into a PC300 cyclone through a pipeline and a pump, the PC300 cyclone separates particles above 40um and slurry below 40um, the slurry below 40um overflows from an overflow port and is pumped into a circulation tank through a pipeline and a pump to be utilized, and the slurry in the circulation tank can provide slurry for a synchronous grouting system or feed slurry for a slurry shield;
as shown in figure 1, a particle pump with the size of more than 40um separated by a PC300 cyclone is conveyed to a secondary dewatering screen through a material conveying belt for mud-water separation, clear liquid of the clear liquid is conveyed to a water pool through a pipeline to be used as water for a construction site, waste residue and slurry subjected to primary dewatering are screened (in a screening device, the aperture of the screening device is 1mm), particles with the size of less than 1mm are conveyed to a stirring tank through the material conveying belt, and particles with the size of more than 1mm are conveyed to a soil collecting pit through the material conveying belt.
Adding a flocculating agent into a stirring tank filled with the primarily separated slurry waste residues, fully mixing, and conveying into a slurry treatment tank through a pipeline for primary flocculation reaction for 12-24 hours; after natural precipitation, pumping the supernatant of the treatment tank to a water pool by using a water pump to be used as water for a construction site, and pumping the flocculated waste residues into a geotechnical pipe bag by using a submersible sand pump, wherein the section view of the geotechnical pipe bag is shown in figure 2; after the upper layer and the lower layer of the primary flocculation slurry are separated, the inner part of the soil engineering pipe bag is filled, the slurry inlet is bound tightly, and the dehydration treatment is carried out for 3-7 days again; after the sludge flocculation waste residue in the geotube bag is completely dehydrated, the geotube bag can be transported out together with the large clay and stone blocks in the soil collection pit or the waste soil can be recycled, for example, the geotube bag can be used for making bricks.
FIG. 3 is a top plan view of the mud separation system arrangement of the present invention, and FIG. 4 is a diagram of the process engineering apparatus of the present invention. As can be seen from fig. 3 and 4, the soil collecting pit 3, the circulating tank 4 and the treating tank 5 of the present embodiment have the same size, and are arranged side by side; the size of the sink 10 can be made smaller.
The flocculant types used may include lime, PAM (polyacrylamide) and PAC (polyaluminium chloride), each incorporated at about 1% to 3%, 2% to 4% by mass of the waste pulp. Preferably, in one embodiment of the utility model, the following composite flocculant formulation is used: 2% lime + 2% PAM (polyacrylamide) + 3% PAC (polyaluminium chloride).
Compared with the traditional method, the utility model can realize faster dehydration reduction of the muck slurry by doping the flocculating agent and using the earthwork pipe bag for processing in the process of pumping the slurry, and has small noise and little influence on the surrounding environment. The used soil engineering pipe bags have strong applicability to mud with different water contents and different components, are matched with a flocculating agent for flexible use, can accelerate the full mixing reaction of the mud and the flocculating agent, and can be adjusted according to mud with different quantities at any time.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.
Claims (3)
1. A slurry treatment system based on a flocculation combined earthwork pipe bag method is characterized by comprising a slurry separation device system and a slurry flocculation system; the mud separating device system comprises a rotary screen, a soil collecting pit, a cyclone, a circulating pool, a dewatering screen and a water pool; the slurry flocculation system comprises a stirring tank, a treatment tank and a soil engineering pipe bag;
the rotary screen is used for receiving and separating initial waste slurry, and the soil collection pit is connected with the rotary screen and used for collecting large clay stones preliminarily separated by the rotary screen; the cyclone is connected with the drum screen through a pipeline and is used for collecting the mud separated by the drum screen and separating the mud again; the circulation tank is connected with the cyclone through a pipeline and used for receiving slurry below 40um obtained by separation, the dewatering screen is connected with the cyclone and used for receiving particle slurry above 40um obtained by separation of the cyclone and carrying out mud-water separation again on the particle slurry, the stirring tank is used for collecting waste residue and slurry obtained by mud-water separation of the dewatering screen, and the water tank is connected with the dewatering screen and used for storing clear liquid separated by the dewatering screen;
the stirring tank is used as a place for adding a flocculating agent, a flocculating agent adding pipeline is connected with the stirring tank, the stirring tank is connected with a treatment pool, and the treatment pool is used for performing slurry flocculation reaction; the treatment pool is connected with the water pool through a water pump and is used for pumping supernatant liquor of the treatment pool to the water pool; the treatment tank is provided with a submersible silt pump which is used for pumping the flocculated waste residues into the soil engineering pipe bag.
2. The slurry treatment system based on the flocculation combined earthwork pipe bag method according to claim 1, wherein a screening device is arranged between the dewatering screen and the stirring tank, and the screening device is used for receiving and screening the sludge and the waste residue after the sludge-water separation of the dewatering screen; the aperture of the screen mesh is 1 mm.
3. The slurry treatment system based on the flocculation combined earthwork tube bag method according to claim 2, wherein a sieving device is connected with the stirring tank, and the particles with the size less than 1mm obtained by sieving are sent to the stirring tank; and (4) conveying the particles with the size larger than 1mm obtained by screening by the screening device into the soil collecting pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122121898.6U CN216336961U (en) | 2021-09-03 | 2021-09-03 | Slurry treatment system based on flocculation combined soil engineering pipe bag method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122121898.6U CN216336961U (en) | 2021-09-03 | 2021-09-03 | Slurry treatment system based on flocculation combined soil engineering pipe bag method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216336961U true CN216336961U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122121898.6U Active CN216336961U (en) | 2021-09-03 | 2021-09-03 | Slurry treatment system based on flocculation combined soil engineering pipe bag method |
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| Country | Link |
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| CN (1) | CN216336961U (en) |
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2021
- 2021-09-03 CN CN202122121898.6U patent/CN216336961U/en active Active
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