CN112757470A - Brick-making recycling method for shield muck - Google Patents
Brick-making recycling method for shield muck Download PDFInfo
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- CN112757470A CN112757470A CN202011643723.5A CN202011643723A CN112757470A CN 112757470 A CN112757470 A CN 112757470A CN 202011643723 A CN202011643723 A CN 202011643723A CN 112757470 A CN112757470 A CN 112757470A
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- sand
- shield muck
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- slurry
- muck
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004064 recycling Methods 0.000 title claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 152
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000005406 washing Methods 0.000 claims description 69
- 239000002002 slurry Substances 0.000 claims description 40
- 238000012216 screening Methods 0.000 claims description 34
- 238000005189 flocculation Methods 0.000 claims description 25
- 230000016615 flocculation Effects 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 20
- 239000011449 brick Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 11
- 239000006228 supernatant Substances 0.000 claims description 10
- 230000003311 flocculating effect Effects 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 9
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 7
- 230000001376 precipitating effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000011499 joint compound Substances 0.000 description 40
- 238000003860 storage Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000026676 system process Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
- B28B17/026—Conditioning ceramic materials
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a recycling method of shield muck, which belongs to the technical field of shield construction and solves the problem of unsatisfactory recycling effect of shield muck treatment in the prior art, and sequentially screens, washes sand, swirls, washes sand again, flocculates, presses and flocculates the shield muck to obtain coarse sand, fine sand, mud cakes and water, thereby meeting the requirements of material recycling and outward transportation, realizing the reduction transportation, environmental protection treatment and resource utilization of the shield muck, and having the characteristics of integrated arrangement, modular installation, industrial production and intelligent control; the invention has strong adaptability, the system has multi-stage configuration, multi-stage fittings and various arrangement forms, and can meet the requirements of different projects on the treatment capacity, the site arrangement and the geological conditions.
Description
Technical Field
The invention belongs to the technical field of shield construction, and particularly belongs to a brick-making recycling method for shield muck.
Background
Along with the vigorous construction of cities, the development of urban and rural integration, the construction of urban tunnels and subways, a large amount of shield muck, construction waste and shield muck are formed in the construction process, and the yield is greatly increased. The number and the storage capacity of the existing treatment facilities can not meet the requirements of shield muck, construction waste and shield muck disposal at the present stage, and the phenomenon of illegal waste remains. In order to solve the problems that the output of the urban shield muck is increased sharply, the number and the storage capacity of the existing treatment facilities are insufficient, and in order to carry out comprehensive scientific development, the disposal of the urban shield muck becomes a current stage difficult problem.
At present, the shield muck is treated in a yard by direct outward transportation, the transportation efficiency of the method is low due to the high water content of the shield muck, the road is easily exposed and polluted in the transportation process, a large amount of national soil resources are wasted by stacking the high water content muck in a large amount of subway construction, large-scale cultivated land is occupied, the water content muck is unstable in stacking, disasters such as landslide and collapse occur, and the water content muck is also one of main pollution sources of sand dust pollution, and the liquid leaching of the muck can cause serious pollution to water resources near the yard.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for recycling brick-making by using shield muck, which aims to: the shield muck is subjected to integrated treatment, and is classified and separated into coarse sand, fine sand, mud and water, so that various indexes of the product meet national or local regulations.
The technical scheme adopted by the invention is as follows:
a method for recycling brick making from shield muck comprises the following steps:
step A: screening the shield muck after the shield muck is discharged out of the well;
and B: screening to obtain coarse sand and screening slurry, storing the coarse sand, and washing the screening slurry;
and C: washing sand to obtain fine sand and sand washing slurry, storing the fine sand, and performing rotational flow on the sand washing slurry;
step D: swirling to obtain sand-containing underflow and swirling slurry, washing sand from the sand-containing underflow again, and flocculating the swirling slurry;
step E: flocculating to obtain supernatant and lower thick mud, precipitating the supernatant, and press-filtering the thick mud;
step F: precipitating to obtain clear water and precipitate, discharging the clear water, flocculating the precipitate again, performing filter pressing to obtain mud cakes, and crushing the mud cakes;
step G: and crushing to obtain pug, conveying the pug to a baking-free rotary machine for block forming, forming blocks to obtain baking-free rotary blocks, and stacking and curing the baking-free rotary blocks to obtain the finished products of the baking-free brick blocks.
By adopting the scheme, the shield muck is sequentially screened, washed with sand, swirled, washed with sand again, flocculated, filter-pressed, flocculated, brickmaking and the like to obtain coarse sand, fine sand, mud cakes, baking-free brick building blocks and water, so that the requirements of material recycling and outward transportation are met, the reduction transportation, the environmental protection treatment and the resource utilization of the shield muck are realized, and the shield muck has the characteristics of integrated arrangement, modular installation, industrial production and intelligent control; the invention has strong adaptability, the system has multi-stage configuration, multi-stage accessories and various arrangement forms, and can meet the requirements of different projects on the treatment capacity, the site arrangement and the geological conditions; the invention sets a self-circulation system aiming at the shield muck characteristic, carries out targeted design on sand washing and rotational flow circulation, coarse sand equipment and the like, ensures the screening effect, ensures the cleanliness of coarse sand and fine sand, and improves the processing capacity of the equipment.
Preferably, the step a specifically includes:
a1: storing the shield muck discharged out of the well in an adjusting muck pit, and distributing the shield muck to a plurality of feeders by using a feeding device and a distributing hopper;
a2: and loosening and homogenizing the shield muck by using a feeder, and distributing the treated shield muck to a plurality of coarse screening devices.
By adopting the preferred scheme, the invention carries out a pretreatment link on the shield muck, and configures the feeder, so that the feeding quantity is uniform, the feeding characteristic is loose, and the post-stage treatment efficiency and effect are improved;
preferably, the step a1 specifically includes: and storing the shield muck discharged out of the well in an adjusting slag pit, and distributing the muck to two feeders by using a bucket-wheel reclaimer, an inclination-angle belt conveyor, a horizontal belt conveyor and a distributing hopper.
By adopting the preferred scheme, the automatic feeding and discharging functions are realized, the system process is matched with equipment such as a bucket-wheel reclaimer, a belt conveyor and the like, and the automatic feeding of the shield muck and the automatic discharging of the separated products can be realized.
Preferably, the step B specifically includes: coarse screening is carried out on the shield muck by using coarse screening equipment, after the coarse screening is finished, oversize coarse sand is collected and stored, and undersize screening mud sequentially enters a plurality of sand washers through undersize chutes;
preferably, the step C specifically includes: and (2) washing the screened mud by using a plurality of sand washing machines in sequence, collecting and storing fine sand obtained by washing the sand after the sand washing is finished, distributing the sand washing mud generated by the sand washing to a plurality of cyclones, and performing cyclone flow on the sand washing mud by using the cyclones.
By adopting the preferred scheme, the undersize of the coarse screen is directly fed into the sand washer, sand is removed by the main force of the sand washer, and sand is removed by the aid of the cyclone, so that the influence of unstable work of the cyclone on sand washing is avoided.
Preferably, the step D specifically includes: and (3) carrying out rotational flow by using a cyclone, after the rotational flow is finished, sending rotational flow slurry obtained by the rotational flow to the liquid separation box through an overflow port of the cyclone, and feeding sand-containing underflow obtained by the rotational flow into a sand washer again for sand washing.
By adopting the preferred scheme, the sand-containing underflow obtained by the cyclone enters a sand washer for circular treatment, so that the sand production quality of fine sand is improved.
Preferably, the step E specifically includes: and (3) delivering the slurry in the liquid separating box to a plurality of flocculation tanks for flocculation, delivering the supernatant to a clear water tank after flocculation is finished, and delivering the lower-layer thick slurry to a filter press.
By adopting the preferred scheme, the rotational flow overflow liquid directly enters the flocculation tank, unnecessary links are eliminated, and silting and foam are reduced.
Preferably, the step F specifically includes: and (3) carrying out filter pressing treatment on the thick mud by using a filter press, storing the dried mud cake after the filter pressing is finished, sending the filter pressing liquid to a clear water tank for precipitation, discharging clear water obtained after precipitation, and sending the precipitate to a flocculation tank for treatment.
By adopting the preferred scheme, the dense slurry is subjected to filter pressing treatment by using a filter press to obtain a dried mud cake, the filter pressing solution is precipitated to obtain clear water, and the precipitate is recycled and flocculated again, so that the treatment quality of the residue soil is improved.
Preferably, the clear water obtained by precipitation in step F is used in any one of steps A-E. By adopting the preferable scheme, the waste water used in the shield muck treatment process is treated to obtain clear water which is circularly used for shield muck treatment.
Preferably, the step C further comprises the step of enabling the sand washing slurry to enter a sand washing overflow tank, arranging a stirring device in the sand washing overflow tank, and pumping the sand washing slurry out of the sand washing overflow tank through a pump body to carry out rotational flow. Adopt this preferred scheme, set up sand washer overflow tank and collect the sand washing mud, set up agitating unit, prevent that sand washing overflow tank from binding up the silt.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. screening, sand washing, rotational flow, secondary sand washing, flocculation, filter pressing, brick making, flocculation and the like are sequentially carried out on the shield muck to obtain coarse sand, fine sand, mud cakes, baking-free transfer finished products and water, the requirements of material recycling and outward transportation are met, the reduction transportation, the environmental protection treatment and the resource utilization of the shield muck are realized, and the shield muck has the characteristics of integrated arrangement, modular installation, industrial production and intelligent control; the invention has strong adaptability, the system has multi-stage configuration, multi-stage accessories and various arrangement forms, and can meet the requirements of different projects on the treatment capacity, the site arrangement and the geological conditions; the invention sets a self-circulation system aiming at the shield muck characteristic, carries out targeted design on sand washing and rotational flow circulation, coarse sand equipment and the like, ensures the screening effect, ensures the cleanliness of coarse sand and fine sand, and improves the processing capacity of the equipment.
2. The shield muck pretreatment link is carried out, and the feeder is configured, so that the feeding quantity is uniform, the feeding characteristic is loose, and the post-stage treatment efficiency and effect are improved; the automatic feeding and discharging device realizes the automatic feeding and discharging functions, the system process is matched with equipment such as a bucket-wheel reclaimer, a belt conveyor and the like, and the automatic feeding of shield muck and the automatic discharging of separated products can be realized; in the invention, the undersize material of the coarse screen is directly fed into the sand washer, sand is removed by the main force of the sand washer, and sand is removed by the aid of the cyclone, so that the influence of unstable work of the cyclone on sand washing is avoided; the sand-containing bottom flow obtained by the cyclone enters a sand washer for circular treatment, so that the sand production quality of fine sand is improved.
3. In the invention, the rotational flow overflow liquid directly enters the flocculation tank, so unnecessary links are eliminated, and siltation and foam are reduced; according to the invention, a filter press is used for carrying out filter pressing treatment on thick mud to obtain a dried mud cake, the filter pressing liquid is precipitated to obtain clear water, and the precipitate is circulated and flocculated again, so that the treatment quality of the residue soil is improved; the method comprises the following steps of treating waste water used in the shield muck treatment process to obtain clear water, and circularly using the clear water for shield muck treatment; according to the invention, the overflow tank of the sand washing machine is arranged for collecting sand washing slurry, and the stirring device is arranged for preventing the sand washing overflow tank from silting up.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of: a flow diagram of one embodiment of the present invention.
FIG. 2 is a diagram of: a perspective view of one embodiment of the present invention.
Reference numerals: 1-adjusting a slag pit; 2-distributing hopper; 3-feeding machine; 4-coarse screening equipment; 5-a downsize chute; 6-impeller sand washer; 7-dewatering screen; 8-a swirler; 9-a flocculation tank; 10-overflow tank of sand washer; 11-a liquid separation box; 12-a dosing device; 13-a clean water tank; 14-a filter press; 15-a mud storage bin; 16-a mud cake crusher; 17-baking-free rotary machine.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 and 2.
A method for recycling brick making from shield muck comprises the following steps:
step A: screening the shield muck after the shield muck is discharged out of the well;
and B: screening to obtain coarse sand and screening slurry, storing the coarse sand, and washing the screening slurry;
and C: washing sand to obtain fine sand and sand washing slurry, storing the fine sand, and performing rotational flow on the sand washing slurry;
step D: swirling to obtain sand-containing underflow and swirling slurry, washing sand from the sand-containing underflow again, and flocculating the swirling slurry;
step E: flocculating to obtain supernatant and lower thick mud, precipitating the supernatant, and press-filtering the thick mud;
step F: precipitating to obtain clear water and precipitate, discharging the clear water, flocculating the precipitate again, performing filter pressing to obtain mud cakes, and crushing the mud cakes;
step G: and crushing to obtain pug, conveying the pug to a baking-free rotary machine for block forming, forming blocks to obtain baking-free rotary blocks, and stacking and curing the baking-free rotary blocks to obtain the finished products of the baking-free brick blocks.
The step A specifically comprises the following steps:
a1: storing the shield muck discharged out of the well in an adjusting muck pit, and distributing the shield muck to a plurality of feeders by using a feeding device and a distributing hopper;
a2: and loosening and homogenizing the shield muck by using a feeder, and distributing the treated shield muck to a plurality of coarse screening devices.
The step a1 specifically includes: and storing the shield muck discharged out of the well in an adjusting slag pit, and distributing the muck to two feeders by using a bucket-wheel reclaimer, an inclination-angle belt conveyor, a horizontal belt conveyor and a distributing hopper.
The step B specifically comprises the following steps: coarse screening is carried out on the shield muck by using coarse screening equipment, after the coarse screening is finished, oversize coarse sand is collected and stored, and undersize screening mud sequentially enters a plurality of sand washers through undersize chutes;
the step C specifically comprises the following steps: and (2) washing the screened mud by using a plurality of sand washing machines in sequence, collecting and storing fine sand obtained by washing the sand after the sand washing is finished, distributing the sand washing mud generated by the sand washing to a plurality of cyclones, and performing cyclone flow on the sand washing mud by using the cyclones.
The step D specifically comprises the following steps: and (3) carrying out rotational flow by using a cyclone, after the rotational flow is finished, sending rotational flow slurry obtained by the rotational flow to the liquid separation box through an overflow port of the cyclone, and feeding sand-containing underflow obtained by the rotational flow into a sand washer again for sand washing.
The step E specifically comprises the following steps: and (3) delivering the slurry in the liquid separating box to a plurality of flocculation tanks for flocculation, delivering the supernatant to a clear water tank after flocculation is finished, and delivering the lower-layer thick slurry to a filter press.
The step F specifically comprises the following steps: and (3) carrying out filter pressing treatment on the thick mud by using a filter press, storing the dried mud cake after the filter pressing is finished, sending the filter pressing liquid to a clear water tank for precipitation, discharging clear water obtained after precipitation, and sending the precipitate to a flocculation tank for treatment.
And in the step F, clear water obtained by precipitation is used in any step of the steps A to E.
And C, enabling the sand washing slurry to enter a sand washing overflow tank, arranging a stirring device in the sand washing overflow tank, and pumping the sand washing slurry out of the sand washing overflow tank through a pump body to carry out rotational flow.
The process flow of the invention is as follows:
after the shield is discharged from the well, the shield residue soil is firstly stored in an adjusting residue pit 1, then is distributed to two feeder 3 devices through a feeding device (a bucket wheel reclaimer, a large-inclination-angle belt conveyor and a horizontal belt conveyor) and a distribution hopper 2, and after being processed by the feeders 3, the loose and uniform residue soil is respectively conveyed to two coarse screening devices 4, wherein the coarse screening devices 4 are linear vibrating screens.
After coarse screening treatment, oversize coarse sand is discharged out of the system, and undersize materials enter an impeller sand washer 6 through an undersize chute 5; the coarse screen is provided with 4 high-pressure spraying devices, so that sand and stones can be effectively cleaned, and the mud content of discharged coarse sand is reduced.
After the slurry discharged into the impeller sand washer 6 is sequentially subjected to two-stage impeller sand washing, cyclone separation and vibration dehydration treatment, fine sand is discharged out of the system through a dewatering screen 7, and the slurry is discharged into six flocculation tanks 9 after being discharged to a liquid separation tank through an overflow port of a cyclone 8; the impeller sand washer 6 can effectively clean and separate most of fine sand, a small amount of fine sand enters a sand washing overflow tank 10 along with overflow liquid of the sand washer, and is treated by a swirler 8 together with undersize of a dewatering screen; the cyclones 8 are treated to obtain clean overflow slurry and sand-containing underflow, and four cyclones 8 are discharged to a second-stage impeller sand washer 6 and a dewatering screen 7 in two paths for circular treatment; the overflow tank 10 of the sand washer is provided with an anti-silting device, so silting can be effectively avoided; in order to ensure the sand washing effect, the impeller sand washing machine 6 is provided with a water adding and flushing device, so that the cleanliness of the sand and stone can be effectively ensured.
The overflow slurry of the cyclone 8 is discharged into a flocculation tank 9 through a liquid separating box 11 for flocculation treatment, the flocculation efficiency can be effectively improved by adding the chemicals through a chemical adding device 12, the supernatant of the flocculation tank 9 overflows into a clear water tank 13, the bottom concentrated slurry is treated by a filter press 14 to obtain dried mud cakes and filter pressing liquid, the dried mud cakes are intensively sent into a mud storage bin 15 for storage, the mud cakes in the mud storage bin are conveyed into a mud cake crusher 16 for crushing to obtain brick making raw material mud, the mud materials are sent into a non-fired rotary machine 17 for building block molding manufacture, the manufactured non-fired rotary building blocks are intensively conveyed to a rotary building block stacking production place through a belt conveyor for curing, and the filter pressing liquid is discharged into the clear water tank 13; after the overflow liquid of the flocculation tank 9 and the pressure filtrate of the pressure filter 14 are discharged into a clean water tank 13, clean water obtained after three-stage sedimentation is used as coarse screen spray, sand washer water supply or construction cleaning water, and can also be discharged; and (3) pumping the sediments in the primary clean water tank 13 and the secondary clean water tank into the flocculation tank 9 through a mud pump for flocculation and filter pressing treatment.
Therefore, the shield muck is separated into coarse sand, washed sand, mud cakes and clear water, and the requirements of outward transportation, discharge or recycling are met.
The working principle of the part of the device related in the invention is the prior art, and the part of the device is not specifically explained in the application, and the model of the part of the device is given as an example, wherein the material feeder 3 is GZG200-200Z, the coarse screening device 4 is 3CSS2160, the impeller sand washer 6 is XSD3624, the dewatering screen 7 is ZSD2442, the swirler 8 is FX500, and the filter press 14 is 250m2 (model 1250).
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. A method for recycling brick-making from shield muck is characterized by comprising the following steps:
step A: screening the shield muck after the shield muck is discharged out of the well;
and B: screening to obtain coarse sand and screening slurry, storing the coarse sand, and washing the screening slurry;
and C: washing sand to obtain fine sand and sand washing slurry, storing the fine sand, and performing rotational flow on the sand washing slurry;
step D: swirling to obtain sand-containing underflow and swirling slurry, washing sand from the sand-containing underflow again, and flocculating the swirling slurry;
step E: flocculating to obtain supernatant and lower thick mud, precipitating the supernatant, and press-filtering the thick mud;
step F: precipitating to obtain clear water and precipitate, discharging the clear water, flocculating the precipitate again, performing filter pressing to obtain mud cakes, and crushing the mud cakes;
step G: and crushing to obtain pug, conveying the pug to a baking-free rotary machine for block forming, forming blocks to obtain baking-free rotary blocks, and stacking and curing the baking-free rotary blocks to obtain the finished products of the baking-free brick blocks.
2. The recycling method of brick making by using shield muck as claimed in claim 1, which is characterized in that: the step A specifically comprises the following steps:
a1: storing the shield muck discharged out of the well in an adjusting muck pit, and distributing the shield muck to a plurality of feeders by using a feeding device and a distributing hopper;
a2: and loosening and homogenizing the shield muck by using a feeder, and distributing the treated shield muck to a plurality of coarse screening devices.
3. The recycling method of brick making by using shield muck as claimed in claim 2, which is characterized in that: the step a1 specifically includes: and storing the shield muck discharged out of the well in an adjusting slag pit, and distributing the muck to two feeders by using a bucket-wheel reclaimer, an inclination-angle belt conveyor, a horizontal belt conveyor and a distributing hopper.
4. The method for recycling the bricks by using the shield muck as claimed in claim 1, wherein the step B specifically comprises the following steps: and (3) roughly screening the shield residual soil by using rough screening equipment, collecting and storing oversize coarse sand after the rough screening is finished, and sequentially feeding undersize screened mud into a plurality of sand washers through undersize chutes.
5. The recycling method of brick making by using shield muck as claimed in claim 1, which is characterized in that: the step C specifically comprises the following steps: and (2) washing the screened mud by using a plurality of sand washing machines in sequence, collecting and storing fine sand obtained by washing the sand after the sand washing is finished, distributing the sand washing mud generated by the sand washing to a plurality of cyclones, and performing cyclone flow on the sand washing mud by using the cyclones.
6. The recycling method of brick making by using shield muck as claimed in claim 1, which is characterized in that: the step D specifically comprises the following steps: and (3) carrying out rotational flow by using a cyclone, after the rotational flow is finished, sending rotational flow slurry obtained by the rotational flow to the liquid separation box through an overflow port of the cyclone, and feeding sand-containing underflow obtained by the rotational flow into a sand washer again for sand washing.
7. The recycling method of brick making from shield muck according to claim 5, characterized in that: the step E specifically comprises the following steps: and (3) delivering the slurry in the liquid separating box to a plurality of flocculation tanks for flocculation, delivering the supernatant to a clear water tank after flocculation is finished, and delivering the lower-layer thick slurry to a filter press.
8. The recycling method of brick making by using shield muck as claimed in claim 1, which is characterized in that: the step F specifically comprises the following steps: and (3) carrying out filter pressing treatment on the thick mud by using a filter press, storing the dried mud cake after the filter pressing is finished, sending the filter pressing liquid to a clear water tank for precipitation, discharging clear water obtained after precipitation, and sending the precipitate to a flocculation tank for treatment.
9. The recycling method of brick making by using shield muck as claimed in claim 1, which is characterized in that: and in the step F, clear water obtained by precipitation is used in any step of the steps A to E.
10. The recycling method of brick making by using shield muck as claimed in claim 1, which is characterized in that: and C, enabling the sand washing slurry to enter a sand washing overflow tank, arranging a stirring device in the sand washing overflow tank, and pumping the sand washing slurry out of the sand washing overflow tank through a pump body to carry out rotational flow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011643723.5A CN112757470A (en) | 2020-12-31 | 2020-12-31 | Brick-making recycling method for shield muck |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011643723.5A CN112757470A (en) | 2020-12-31 | 2020-12-31 | Brick-making recycling method for shield muck |
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| CN112757470A true CN112757470A (en) | 2021-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353335A (en) * | 2022-08-23 | 2022-11-18 | 福建南方路面机械股份有限公司 | Method for preparing high-fluidity slurry based on building residue soil |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60114360A (en) * | 1983-11-28 | 1985-06-20 | Chiyouonpa Kk | Device for recovering high-concentration mud water for shield driving method |
| JPH10225700A (en) * | 1997-02-14 | 1998-08-25 | Kankyo Hogo Suishin Kyodo Kumiai | Recycle system of mixed and improved soil of dehydrated cake in construction sludge |
| CN105481226A (en) * | 2016-01-22 | 2016-04-13 | 浙江大学城市学院 | Mud harmless treatment device and mud treatment method |
| WO2018064857A1 (en) * | 2016-09-26 | 2018-04-12 | 深圳申佳原环保科技有限公司 | Method for industrial treatment of silt sediment |
| CN109250877A (en) * | 2018-09-13 | 2019-01-22 | 深圳市绿锦隆环保科技有限公司 | A kind of shield residues processing technique |
| CN109761396A (en) * | 2019-02-19 | 2019-05-17 | 邓为成 | A kind of shield dregs processing method and equipment |
| CN110052480A (en) * | 2019-05-24 | 2019-07-26 | 深圳市广粤量行咨询服务有限公司 | The processing method of dregs processing system |
| CN110303033A (en) * | 2019-07-30 | 2019-10-08 | 中铁工程服务有限公司 | A kind of shield-tunneling construction dregs processing system and processing method |
| CN110340112A (en) * | 2019-07-18 | 2019-10-18 | 三川德青工程机械有限公司 | The integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology utilize method and system |
| CN110695064A (en) * | 2019-11-12 | 2020-01-17 | 青岛恩普环保设备有限公司 | Shield muck zero-discharge treatment system and method |
| CN210214997U (en) * | 2019-04-09 | 2020-03-31 | 北京京创净源环境技术研究院有限公司 | River course thin layer desilting system |
| CN210305011U (en) * | 2019-07-30 | 2020-04-14 | 中铁工程服务有限公司 | Shield constructs construction dregs processing system |
| CN210450263U (en) * | 2019-07-18 | 2020-05-05 | 三川德青工程机械有限公司 | Earth pressure balance shield muck comprehensive treatment and resource ecological utilization system |
| CN111282707A (en) * | 2020-03-19 | 2020-06-16 | 深圳市工勘岩土集团有限公司 | Washing, filtering, purifying and separating system and method for sandy soil in foundation pit excavation |
| CN112110219A (en) * | 2020-10-12 | 2020-12-22 | 山西复晟铝业有限公司 | Ore bucket wheel gets material homogenization system |
-
2020
- 2020-12-31 CN CN202011643723.5A patent/CN112757470A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60114360A (en) * | 1983-11-28 | 1985-06-20 | Chiyouonpa Kk | Device for recovering high-concentration mud water for shield driving method |
| JPH10225700A (en) * | 1997-02-14 | 1998-08-25 | Kankyo Hogo Suishin Kyodo Kumiai | Recycle system of mixed and improved soil of dehydrated cake in construction sludge |
| CN105481226A (en) * | 2016-01-22 | 2016-04-13 | 浙江大学城市学院 | Mud harmless treatment device and mud treatment method |
| WO2018064857A1 (en) * | 2016-09-26 | 2018-04-12 | 深圳申佳原环保科技有限公司 | Method for industrial treatment of silt sediment |
| CN109250877A (en) * | 2018-09-13 | 2019-01-22 | 深圳市绿锦隆环保科技有限公司 | A kind of shield residues processing technique |
| CN109761396A (en) * | 2019-02-19 | 2019-05-17 | 邓为成 | A kind of shield dregs processing method and equipment |
| CN210214997U (en) * | 2019-04-09 | 2020-03-31 | 北京京创净源环境技术研究院有限公司 | River course thin layer desilting system |
| CN110052480A (en) * | 2019-05-24 | 2019-07-26 | 深圳市广粤量行咨询服务有限公司 | The processing method of dregs processing system |
| CN110340112A (en) * | 2019-07-18 | 2019-10-18 | 三川德青工程机械有限公司 | The integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology utilize method and system |
| CN210450263U (en) * | 2019-07-18 | 2020-05-05 | 三川德青工程机械有限公司 | Earth pressure balance shield muck comprehensive treatment and resource ecological utilization system |
| CN110303033A (en) * | 2019-07-30 | 2019-10-08 | 中铁工程服务有限公司 | A kind of shield-tunneling construction dregs processing system and processing method |
| CN210305011U (en) * | 2019-07-30 | 2020-04-14 | 中铁工程服务有限公司 | Shield constructs construction dregs processing system |
| CN110695064A (en) * | 2019-11-12 | 2020-01-17 | 青岛恩普环保设备有限公司 | Shield muck zero-discharge treatment system and method |
| CN111282707A (en) * | 2020-03-19 | 2020-06-16 | 深圳市工勘岩土集团有限公司 | Washing, filtering, purifying and separating system and method for sandy soil in foundation pit excavation |
| CN112110219A (en) * | 2020-10-12 | 2020-12-22 | 山西复晟铝业有限公司 | Ore bucket wheel gets material homogenization system |
Non-Patent Citations (1)
| Title |
|---|
| 广州市地下铁道总公司: "《地铁科技文集2011》", 29 February 2012 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353335A (en) * | 2022-08-23 | 2022-11-18 | 福建南方路面机械股份有限公司 | Method for preparing high-fluidity slurry based on building residue soil |
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