CN216857012U - Earth pressure balance shield muck environment-friendly treatment system - Google Patents
Earth pressure balance shield muck environment-friendly treatment system Download PDFInfo
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- CN216857012U CN216857012U CN202123326939.1U CN202123326939U CN216857012U CN 216857012 U CN216857012 U CN 216857012U CN 202123326939 U CN202123326939 U CN 202123326939U CN 216857012 U CN216857012 U CN 216857012U
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Abstract
The utility model relates to an environment-friendly treatment system for muck of a soil pressure balance shield, which comprises: the screening device comprising a spraying mechanism is connected with the sewage hopper; the sand washing device comprises a spraying mechanism, and a feed inlet of the sand washing device is arranged below the sewage hopper; the feed end of a dewatering screen of the fine sand recovery device is arranged at the discharge port of the sand washing device, and a water storage bin at the bottom of the fine sand recovery device is communicated with a sewage outlet of the sand washing device; the cyclone separation device is communicated with a sewage pump in the water storage bin, a sand outlet of the cyclone separation device is arranged at the feed end of the dewatering screen, and a sewage outlet of the cyclone separation device is communicated with a sewage pool; the flocculation device is communicated with a first slurry pump in the sewage tank, an overflow port of the flocculation device is communicated with a clean water tank, a sludge outlet of the flocculation device is communicated with a slurry tank, a chemical adding port of the flocculation device is communicated with a chemical adding device, a clean water pump communicated with the spraying mechanism is arranged in the clean water tank, and a second slurry pump communicated with a filter pressing device is arranged in the slurry tank; and the water receiving hopper is arranged below the sewage outlet of the filter pressing device and is connected with the sewage tank. The utility model separates the shield muck into gravel aggregate and converts the sewage into clear water for recycling.
Description
Technical Field
The utility model belongs to the technical field of engineering waste treatment, relates to shield engineering waste soil treatment equipment, and particularly relates to an environment-friendly treatment system for earth pressure balance shield muck.
Background
In the process of rapid development of society, urban underground traffic as construction of social infrastructure is also rapidly developed, and in the process of driving and constructing subways, tunnels and the like, a large amount of shield muck is generated, and the shield muck contains a large amount of stones and crushed sand, so that the treatment is very inconvenient. When the dregs are stacked, a large amount of space is occupied, the surrounding environment is influenced, and the appearance of the city are influenced. In the prior art, the common treatment methods are as follows: (1) the shield muck is directly transported to a storage place without being processed for storage. Adopt this kind of processing mode, on the one hand, can occupy a large amount of places of accomodating, make the usable soil of mankind reduce, on the other hand, need to transport shield muck to accomodating the place from the job site, can lose in the transportation and spill, because the shield contains the foaming agent in the muck, from the compound that influences ecological environment such as powder, the easy polluted environment, and the cost of transportation is high, and economic benefits is poor. (2) Carry out simple screening with the dregs after transporting, this kind of mode is the same with first kind of mode, can occupy a large amount of places of accomodating equally to cause pollution in the transportation, and problem such as cost of transportation height. (3) Slurrying shield muck, then carrying out slag-slurry separation, and finally transferring the treated muck to be used as other industrial raw materials or directly used as a filler. In this way, secondary pollution occurs in the process of separating and treating the dregs, for example, dust is easily generated by directly sieving the dregs, and a large amount of waste water is generated after the slurrying treatment, so that adverse effects are caused to the surrounding environment, and a large amount of water resources are consumed in the slurrying treatment, thereby causing waste of water resources.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems existing in the existing shield muck treatment, the utility model provides the soil pressure balance shield muck environment-friendly treatment system, which can separate the shield muck into stones and sands for recycling, treat the sewage generated in the separation process, recycle the treated water and realize zero emission.
In order to achieve the above object, the present invention provides an environment-friendly muck treatment system for a soil pressure balance shield, comprising:
a screening device comprising:
a mesh screen;
the first spraying mechanism is arranged above the mesh screen;
the sewage bucket is connected with a water outlet at the bottom of the mesh screen;
sand washing apparatus, comprising:
a feed inlet of the sand washer is arranged below a drain outlet of the sewage bucket;
the second spraying mechanism is arranged above the sand washer;
the fine sand recovery device is characterized in that the feed end of a dewatering screen of the fine sand recovery device is arranged at the discharge port of the sand washer, a water storage bin at the bottom of the fine sand recovery device is communicated with a sewage outlet of the sand washer, and a sewage pump is arranged in the water storage bin;
the cyclone separation device is communicated with the sewage pump, and a sand outlet of the cyclone separation device is arranged at the feed end of the dewatering screen;
the sewage tank is communicated with the sewage outlet of the cyclone separation device and is internally provided with a first slurry pump;
the water inlet of the flocculation device is communicated with the first slurry pump;
the mud pool is communicated with a mud outlet of the flocculation device and is internally provided with a second slurry pump;
the clear water tank is communicated with an overflow port of the flocculation device, and is internally provided with a clear water pump which is respectively communicated with the first spraying mechanism and the second spraying mechanism;
the dosing device is communicated with a dosing port of the flocculation device;
a feed inlet of the filter pressing device is communicated with the second slurry pump;
and the water receiving hopper is arranged below the sewage outlet of the filter pressing device and is connected with the sewage tank.
Further, still include controlling means, controlling means include the controller and respectively with first level sensor and the second level sensor that the controller electricity is connected, the controller is connected with mesh screen, sand washer, fine sand recovery unit, sewage pump, first sediment stuff pump, second sediment stuff pump, clean water pump, charge device and filter pressing device electricity respectively, first level sensor locates in the effluent water sump, the second level sensor locates in the clean water sump.
And the water collecting device is communicated with a drainage ditch of the operation site, a third slurry pump communicated with a water inlet of the flocculation device is arranged in the water collecting device, and the third slurry pump is electrically connected with the controller.
Preferably, the dosing device comprises a dosing container for containing the medicament, a metering pump communicated with the dosing container, a dosing pipeline connected with the metering pump and a flow meter arranged in the flocculation device, the metering pump and the flow meter are electrically connected with the controller, and the dosing pipeline is directly communicated with a dosing port of the flocculation device.
Furthermore, the device also comprises a feeding device placed in a working site.
Preferably, the feeding device is a feeding conveyor, the feeding conveyor is electrically connected with the controller, and the feeding end of the mesh screen is arranged at the discharge port of the feeding conveyor.
Furthermore, the automatic material distributing device further comprises a material receiving device electrically connected with the controller, the discharge ends of the mesh screens, the discharge ends of the dewatering screens and the discharge holes of the filter pressing devices are all arranged above the conveying belt of the material receiving device, and the discharge ends of the material receiving device are arranged above the dry material storage yard.
Compared with the prior art, the utility model has the advantages and positive effects that:
(1) the shield residual soil is separated into sand aggregate for recycling, sewage generated in the separation process is filtered, flocculated and concentrated to form clear water, the clear water can be directly recycled, and the whole effect of recycling and zero emission is achieved.
(2) The shield muck processing device is provided with the control device, the shield muck processing process is automatically controlled and completed through the control device, the integral automation degree is high, the operation is simple, the safety and the reliability are realized, and the performance is stable.
(3) The utility model has the advantages of compact layout, reasonable structure, small occupied area, simple installation, low investment cost, high overall energy utilization rate, low energy consumption and low operation cost.
(4) The utility model adopts twice fine sand extraction, wherein the first fine sand extraction is to directly recover the fine sand dehydrated and separated by the dewatering screen of the fine sand recovery device, the other time of fine sand extraction is to carry out cyclone separation on the sewage dehydrated and generated by the fine sand recovery device through the cyclone separation device, the separated fine sand is recovered after being dehydrated by the fine sand recovery device, and the two times of fine sand extraction lead the recovery amount of the fine sand to be more and the resource recovery effect to be better.
(5) The utility model is provided with the conveying device, and can directly convey the separated stones and sands to a dry material storage yard for reuse.
Drawings
Fig. 1-2 are schematic structural diagrams of an earth pressure balance shield muck environment-friendly treatment system according to an embodiment of the utility model;
fig. 3 is a control schematic block diagram of an earth pressure balance shield muck environmental protection processing system according to an embodiment of the present invention;
fig. 4 is a flowchart of the working process of the earth pressure balance shield muck environment-friendly treatment system according to the embodiment of the utility model.
In the figure, 1, a screening device, 101, a mesh screen, 2, a sewage hopper, 3, a sand washer, 4, a fine sand recovery device, 5, a sewage pump, 6, a cyclone separation device, 7, a sewage tank, 801, a first slurry pump, 802, a second slurry pump, 803, a third slurry pump, 9, a flocculation device, 10, a slurry tank, 11, a clean water tank, 12, a clean water pump, 13, a dosing device, 1301, a metering pump, 1302, a flowmeter, 14, a filter pressing device, 15, a water receiving hopper, 16, a controller, 17, a first liquid level sensor, 18, a second liquid level sensor, 19, a water collecting device, 20, a feeding conveyor, 21, a material receiving device, 22, a dry material yard, 23, a soil outlet, 24 and a soil tank.
Detailed Description
The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those of ordinary skill in the art.
Referring to fig. 1 and fig. 2, the present embodiment provides an earth pressure balance shield muck environment-friendly treatment system, including:
screening device 1, comprising:
a mesh screen 101;
the first spraying mechanism is arranged above the mesh screen 101;
the sewage bucket 2 is connected with a water outlet at the bottom of the mesh screen 101;
sand washing apparatus, comprising:
a feed inlet of the sand washer 3 is arranged below a drain outlet of the sewage bucket 2;
the second spraying mechanism is arranged above the sand washer 3;
the fine sand recovery device 4 is characterized in that the feed end of a dewatering screen of the fine sand recovery device is arranged at the discharge port of the sand washer 3, a water storage bin at the bottom of the fine sand recovery device is communicated with a sewage outlet of the sand washer 3, and a sewage pump 5 is arranged in the water storage bin;
the cyclone separation device 6 is communicated with the sewage pump 5, and a sand outlet of the cyclone separation device is arranged at the feed end of the dewatering screen 401;
the sewage tank 7 is communicated with a sewage outlet of the cyclone separation device 6 and is internally provided with a first slurry pump 801;
the water inlet of the flocculation device 9 is communicated with the first slurry pump 801;
the mud pit 10 is communicated with the mud outlet of the flocculation device 9 and is internally provided with a second slurry pump 802;
a clean water tank 11 which is communicated with an overflow port of the flocculation device 9 and is internally provided with a clean water pump 12 which is respectively communicated with the first spraying mechanism and the second spraying mechanism;
the dosing device 13 is communicated with a dosing port of the flocculation device 9;
a feed inlet of the filter pressing device 14 is communicated with the second slurry pump 802;
and the water receiving hopper 15 is arranged below the sewage outlet of the filter pressing device 14 and is connected with the sewage tank 10.
Referring to fig. 2, in order to realize automatic control of the shield muck, the above-mentioned earth pressure balance shield muck environment-friendly treatment system further includes a control device, the control device includes a controller 16 and a first liquid level sensor 17 and a second liquid level sensor 18 which are respectively electrically connected to the controller 16, the controller 16 is respectively electrically connected to the mesh screen 101, the sand washer 3, the fine sand recovery device 4, the sewage pump 5, the first slag pump 801, the second slag pump 802, the clean water pump 12, the chemical adding device 13 and the filter pressing device 14, the first liquid level sensor 17 is disposed in the sewage tank 10, and the second liquid level sensor 18 is disposed in the clean water tank 11. In the whole treatment process, full-automatic control is realized through the controller, and the method is simple to operate, safe, reliable and high in treatment efficiency.
With continued reference to fig. 1 to 3, in a preferred embodiment, the above-mentioned earth pressure balance shield muck environment-friendly treatment system further includes a water collecting device 19, which is communicated with a drainage ditch of the operation site, and a third slurry pump 803 communicated with a water inlet of the flocculation device 9 is arranged in the system, and the third slurry pump 803 is electrically connected with the controller 16. Scattered sewage generated in the operation process of the system and rainwater generated due to weather cause directly flow into the water collecting device through the drainage ditch with a small inclination angle, and are pumped to the flocculation device by the third slurry pump for concentration, sedimentation and cyclic utilization, so that zero emission is realized.
Specifically, with continued reference to fig. 3, the dosing device 13 includes a dosing container for containing a chemical, a metering pump 1301 communicated with the dosing container, a dosing pipeline connected with the metering pump 1301, and a flow meter 1302 arranged in the flocculation device, the metering pump 1301 and the flow meter 1302 are electrically connected to the controller 16, and the dosing pipeline is directly communicated with a dosing port of the flocculation device. The controller controls the metering pump to pump the liquid medicine in the medicine adding container into the flocculation device through the medicine adding pipeline according to the sewage flow detected by the flowmeter.
In a specific embodiment, the soil pressure balance shield muck environment-friendly treatment system further comprises a feeding device placed in a working site. Specifically, with reference to fig. 3, the feeding device is a feeding conveyor 20, which is placed in the operation site and electrically connected to the controller 16, and the feeding end of the mesh screen is disposed at the discharge port of the feeding conveyor to convey the shield muck generated in the operation site to the mesh screen, so as to realize automatic conveyance of the shield muck. The feeding device can also be a digging machine.
In order to facilitate the separated gravel aggregate and waste residue to be conveyed to the dry material storage yard, with reference to fig. 1 to 3, in a specific embodiment, the soil pressure balance shield waste soil environment-friendly treatment system further includes a material receiving device 21 electrically connected to the controller 16, the discharge ends of the mesh screens, the dewatering screens and the discharge ports of the filter pressing devices 14 are all disposed above the conveyor belt of the material receiving device 21, and the discharge end of the material receiving device 21 is disposed above the dry material storage yard 22. And sending the separated sandstone aggregate and waste residue obtained by filter pressing into a dry material storage yard through a material receiving device.
Specifically, in this embodiment, the mesh screen is a vibrating screen or a drum screen, the sand washer is a bucket wheel type sand washer, the fine sand recovery device is a fine sand recovery machine, the cyclone separation device is a cyclone separator, the flocculation device is a concentration tank, and the filter pressing device is a filter press, which may be a belt type.
The treatment system can be directly applied to an operation site and placed at a soil outlet of the operation site, the separated gravel aggregate can be directly recycled, and clear water obtained after sewage treatment can be recycled, so that zero emission is achieved.
Referring to fig. 4, the work flow of the processing system is as follows:
the engineering waste soil is conveyed to a waste soil pool from a soil outlet through a slag conveying trolley; feeding the screening device by a feeding device; after the materials are fully cleaned through the first spraying mechanism, large-particle materials such as stones are screened by the mesh screen and evenly fall to the receiving device from the discharge end to be conveyed to a dry material storage yard, and small-particle materials such as sand and slurry fall into the sewage bucket from the water outlet.
Sand and slurry in the sewage bucket fall into a wheel bucket type sand washer from a sewage discharge outlet of the sewage bucket together with the operation of a wheel bucket of the sand washer, attachments on the surface layer of the sand are cleaned by a second spraying mechanism, the sand finally falls into a dewatering screen of a fine sand recycling machine under the driving of the wheel bucket of the sand washer, and coarse sand obtained after screening and dewatering is conveyed to a dry material storage yard through a material receiving device; the sewage containing the fine sand falls into a water storage bin at the bottom of the fine sand recycling machine and is pumped to a cyclone separation device through a sewage pump for cyclone separation, the separated sewage enters a sewage pool through a sewage outlet above the cyclone separation device through a pipeline, the fine sand obtained by separation enters a fine sand recycling machine again for screening and dehydration, and then is conveyed to a dry material storage yard together with coarse sand through a material receiving device.
The sewage in the sewage pool is conveyed into the flocculation device through the first slurry pump, the dosing device automatically doses the drugs into the flocculation device, the dosing device doses the drugs into the sewage in the flocculation device, the sewage is concentrated and precipitated, and the clean water flows into the clean water pool through an overflow port and a pipeline to supply the whole system with circulating water; the sludge produced by the concentration and flocculation enters the sludge tank through a sludge outlet at the lower part of the flocculation device.
And after the sludge in the slurry tank is sent into the filter pressing device for filter pressing through the second slurry pump, sewage flows into the sewage tank from a water receiving hopper below the filter pressing device and enters the flocculation device again along with the sewage pump for concentration and settlement. And conveying the residual mud cakes to a dry material storage yard through a material receiving device for subsequent treatment.
Scattered sewage generated in the operation of the whole system and rainwater generated due to weather cause all automatically flow to the water collecting device through the small-inclination drainage ditch and are conveyed to the flocculation device by the third slurry pump for concentration, sedimentation and cyclic utilization.
The treatment system has the advantages of reasonable structure and compact layout, realizes the separation of the shield muck into stones and sands for recycling, treats the sewage generated in the separation process, recycles the treated water, and realizes zero emission. The processing process of the whole processing system is fully automatically controlled and completed by the controller, and the automation degree is high.
The above-described embodiments are intended to illustrate rather than to limit the utility model, and any modifications and variations of the present invention are possible within the spirit and scope of the claims.
Claims (7)
1. The utility model provides a soil pressure balance shield constructs dregs environmental protection processing system which characterized in that includes:
a screening device comprising:
a mesh screen;
the first spraying mechanism is arranged above the mesh screen;
the sewage bucket is connected with a water outlet at the bottom of the mesh screen;
sand washing apparatus, comprising:
a feed inlet of the sand washer is arranged below a drain outlet of the sewage bucket;
the second spraying mechanism is arranged above the sand washer;
the fine sand recovery device is characterized in that the feed end of a dewatering screen of the fine sand recovery device is arranged at the discharge port of the sand washer, a water storage bin at the bottom of the fine sand recovery device is communicated with a sewage outlet of the sand washer, and a sewage pump is arranged in the water storage bin;
the cyclone separation device is communicated with the sewage pump, and a sand outlet of the cyclone separation device is arranged at the feed end of the dewatering screen;
the sewage tank is communicated with the sewage outlet of the cyclone separation device and is internally provided with a first slurry pump;
the water inlet of the flocculation device is communicated with the first slurry pump;
the mud pool is communicated with a mud outlet of the flocculation device and is internally provided with a second slurry pump;
the clear water tank is communicated with an overflow port of the flocculation device, and is internally provided with a clear water pump which is respectively communicated with the first spraying mechanism and the second spraying mechanism;
the dosing device is communicated with a dosing port of the flocculation device;
a feed inlet of the filter pressing device is communicated with the second slurry pump;
and the water receiving hopper is arranged below the sewage outlet of the filter pressing device and is connected with the sewage tank.
2. The earth pressure balance shield muck environment-friendly treatment system as claimed in claim 1, further comprising a control device, wherein the control device comprises a controller and a first liquid level sensor and a second liquid level sensor electrically connected with the controller respectively, the controller is electrically connected with the mesh screen, the sand washer, the fine sand recovery device, the sewage pump, the first slurry pump, the second slurry pump, the clean water pump, the dosing device and the filter pressing device respectively, the first liquid level sensor is arranged in the sewage tank, and the second liquid level sensor is arranged in the clean water tank.
3. The environment-friendly earth pressure balance shield muck treatment system according to claim 2, further comprising a water collection device communicated with a drainage ditch at a work site, wherein a third muck pump communicated with a water inlet of the flocculation device is arranged in the water collection device, and the third muck pump is electrically connected with the controller.
4. The earth pressure balance shield muck environment-friendly treatment system as claimed in claim 2, wherein the dosing device comprises a dosing container for holding a medicament, a metering pump communicated with the dosing container, a dosing pipeline connected with the metering pump, and a flow meter arranged in the flocculation device, the metering pump and the flow meter are electrically connected with the controller, and the dosing pipeline is directly communicated with a dosing port of the flocculation device.
5. The earth pressure balance shield muck environmental protection disposal system of any one of claims 2 to 4, further comprising a loading device placed in a work site.
6. The earth pressure balance shield muck environment-friendly treatment system of claim 5, wherein the loading device is a loading conveyor, the loading conveyor is electrically connected with the controller, and the feeding end of the mesh screen is arranged at a discharge port of the loading conveyor.
7. The earth pressure balance shield muck environment-friendly treatment system according to any one of claims 2 to 4, further comprising a material receiving device electrically connected with the controller, wherein the discharge ends of the mesh screens, the discharge ends of the dewatering screens and the discharge holes of the filter pressing device are all arranged above a conveying belt of the material receiving device, and the discharge end of the material receiving device is arranged above a dry material storage yard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326939.1U CN216857012U (en) | 2021-12-27 | 2021-12-27 | Earth pressure balance shield muck environment-friendly treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326939.1U CN216857012U (en) | 2021-12-27 | 2021-12-27 | Earth pressure balance shield muck environment-friendly treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216857012U true CN216857012U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123326939.1U Active CN216857012U (en) | 2021-12-27 | 2021-12-27 | Earth pressure balance shield muck environment-friendly treatment system |
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| CN (1) | CN216857012U (en) |
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2021
- 2021-12-27 CN CN202123326939.1U patent/CN216857012U/en active Active
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