CN101607782A - A kind of fast dewatering method of waste jet grouting cement paste and equipment thereof - Google Patents

A kind of fast dewatering method of waste jet grouting cement paste and equipment thereof Download PDF

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Publication number
CN101607782A
CN101607782A CNA2009100631243A CN200910063124A CN101607782A CN 101607782 A CN101607782 A CN 101607782A CN A2009100631243 A CNA2009100631243 A CN A2009100631243A CN 200910063124 A CN200910063124 A CN 200910063124A CN 101607782 A CN101607782 A CN 101607782A
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jet grouting
water
pump
cement paste
fast dewatering
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CNA2009100631243A
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CN101607782B (en
Inventor
张民
陈益人
傅磊
杨磊
张沛强
何拥军
张帆
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Shanghai Tunnel Engineering Co Ltd
Safecleen Engineering Machinery Co Ltd
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Black whirlwind engineering machinery Development Co Ltd
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Abstract

The invention discloses a kind of fast dewatering method and equipment thereof of waste jet grouting cement paste, relating to the useless slurry of cement handles, adopt the screening pre-treatment, add steps such as chemical agent, stirring and extrusion dehydration, water in the slurry that gives up can be separated with slag charge by specific equipment, slag charge after the separation only has 25% of former useless volume of slurry, and can transport with common vehicle through the slag charge that dries up, and the while can obtain the clear water of former useless volume of slurry 60-75%, in order to continue slurrying.The present invention can save material, and the protection environment reduces construction cost.

Description

A kind of fast dewatering method of waste jet grouting cement paste and equipment thereof
Technical field
The present invention relates to the useless slurry of cement and handle, particularly a kind of fast dewatering method of waste jet grouting cement paste and equipment thereof.
Background technology
Along with the development of urban construction, the rotary-spraying construction method is used in constructions such as foundation stabilization, ground sealing, underground diaphragm wall widely.But rotary-spraying construction can produce a large amount of discarded cement grouts.The current discarded slurries treating method of taking is to store with mud pit or suction pit in the venue, reach certain reserves after, transport outward with special-purpose tank car.There is following drawback in this processing mode: the one, and need bigger place or stock tank and deposit useless slurry; The 2nd, the outer freight volume of slurries is bigger, uses large-scale special-purpose tank car to be not easy to transportation on busy urban road; The 3rd, slurries contain part cement and stratum soil, easily produce in transportation and precipitate and solidify, and are not easy to cleaning in special-purpose tank car; The 4th, need to use special-purpose vehicle, cost is higher; The 5th, contain in the discarded cement grout that large quantity of moisture is also outer simultaneously to be abandoned, need a large amount of waters to come slurrying in the practice of construction again, produced on the one hand abandoning a large amount of again on the one hand make up water of slurry in a large number and come the contradiction of slurrying.
Summary of the invention
Technical problem to be solved by this invention provides a kind of fast dewatering method and equipment thereof of waste jet grouting cement paste, the water in the slurry that gives up can be separated with slag charge, and the water after the separation can continue slurrying, and slag charge can transport with common vehicle.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of fast dewatering method of waste jet grouting cement paste, carry out according to the following steps:
1) pre-treatment: useless slurry is collected after transferpump is delivered to pre-screening plant, particle diameter in the useless slurry is sifted out greater than the particle of 1mm obtain one-level and handle slag charge;
2) stirring, chemical agent add: the slurry transportation after will sieving is in the one-level stock tank that is provided with agitator, add acid, alkali as required in order to adjust the pH value of mud, with the discharging of satisfying extruding back clear water, extruding back clear water repeats slurrying to equipment washing or extruding back clear water requirement; Add flocculation agent or flocculating aids, to improve filtration efficiency, standby after stirring;
3) extrusion dehydration:, carry out extrusion dehydration with sending the mud after stock pump will stir to adopt the mode of low pressure and mass flow to deliver to pressure filter through system of pipe and valve.When pressure reaches certain set(ting)value, close and send stock pump, starting force (forcing) pump adopts the mode of high-pressure low-flow to continue slurry conveyed to pressure filter, when pressure reaches final set(ting)value, and behind the pressurize certain hour, oppositely blowing with pressurized air further dries up moisture, collects the water that squeezes out simultaneously to clean water basin;
4) pipeline cleaning, discharging and clear water loopback: utilize force (forcing) pump, send clear water scavenging pump and the system of pipe and valve of stock pump after system of pipe and valve is with a small amount of press filtration; Unclamp pressure filter, the second-stage treatment slag charge after the extruding is discharged on the slag charge e Foerderanlage, deliver to stacking place of interim slag charge; Clear water loopback: after the water yield of water tank reaches certain liquid level, deliver to the slurrying special water box by fresh water pump;
Obtain the clear water of 60%-75% in the slag charge of volume-diminished to 25% and the slurry that gives up through above step.
A kind of fast dewatering equipment of waste jet grouting cement paste comprises the contamination pond,
The one-level stock tank is equipped with pre-screening plant on it, anti-precipitation agitator is installed in it;
Pressure filter, the pressure filter downside is provided with the slag charge e Foerderanlage;
Clean water basin, in establish liquid level sensor and fresh water pump, be used in time discharging the clear water after the press filtration and keep certain water yield to be used for detergent line and equipment at any time;
Connect by system of pipe and valve between contamination pond, one-level stock tank, pressure filter and the clean water basin.
Pressure filter has water leg, and water leg is connected with clean water basin.
System of pipe and valve between contamination pond and the one-level stock tank is provided with removing sludge.
System of pipe and valve between one-level stock tank and the pressure filter is provided with and send stock pump.
System of pipe and valve between one-level stock tank and the clean water basin is provided with force (forcing) pump.
Pressure filter is provided with pressure transmitter.
Be provided with liquid level sensor in one-level stock tank, the clean water basin.
Described pre-screening plant is the individual layer linear vibrating screen.
Equipment topworks adopts PLC to control automatically.
The fast dewatering method of a kind of waste jet grouting cement paste provided by the invention and equipment thereof, water in the slurry that gives up can be separated with slag charge by specific equipment, slag charge after the separation only has 25% of former useless volume of slurry, and can transport with common vehicle through the slag charge that dries up, and the while can obtain the clear water of former useless volume of slurry 60-75%, in order to continue slurrying.The present invention can save material, and the protection environment reduces construction cost.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a schema of the present invention;
Fig. 2 is the one-piece construction synoptic diagram of present device;
Fig. 3 is the side-view of present device;
Fig. 4 is the three-dimensional view of present device.
Embodiment
In Fig. 1, a kind of fast dewatering method of waste jet grouting cement paste, carry out according to the following steps:
1) pre-treatment: useless slurry is collected after transferpump is delivered to pre-screening plant 8, particle diameter in the useless slurry is sifted out greater than the particle of 1mm obtain one-level and handle slag charge 2;
2) stirring, chemical agent add: the slurry transportation after will sieving is in the one-level stock tank 10 that is provided with agitator 9, add acid, alkali as required in order to adjust the pH value of mud, with the discharging of satisfying extruding back clear water, extruding back clear water repeats slurrying to equipment washing or extruding back clear water requirement; Add flocculation agent or flocculating aids, to improve filtration efficiency, standby after stirring;
3) extrusion dehydration:, carry out extrusion dehydration with sending the mud after stock pump 19 will stir to adopt the mode of low pressure and mass flow to deliver to pressure filter 4 through system of pipe and valve 16.When pressure reaches certain set(ting)value, close and send stock pump 19, starting force (forcing) pump 18 adopts the mode of high-pressure low-flow to continue slurry conveyed to pressure filter 4, when pressure reaches final set(ting)value, and behind the pressurize certain hour, oppositely blowing with pressurized air further dries up moisture, collects the water that squeezes out simultaneously to clean water basin 15;
4) pipeline cleaning, discharging and clear water loopback: utilize force (forcing) pump 18, send clear water scavenging pump and the system of pipe and valve 16 of stock pump 19 after system of pipe and valve 16 is with a small amount of press filtration; Unclamp pressure filter 4, the second-stage treatment slag charge 5 after the extruding is discharged on the slag charge e Foerderanlage 6, deliver to stacking place of interim slag charge; Clear water loopback: after the water yield of water tank reaches certain liquid level, deliver to the slurrying special water box by fresh water pump.
Obtain the clear water of 60%-75% in the slag charge of volume-diminished to 25% and the slurry that gives up through above step.
In Fig. 2, Fig. 3, Fig. 4, a kind of fast dewatering equipment of waste jet grouting cement paste comprises contamination pond 1,
One-level stock tank 10 is equipped with pre-screening plant 8 on it, be used for removing the larger particles of dirty slurry, reduces the risk of equipment attrition and stifled pump, and anti-precipitation agitator 9 is installed in it, is provided with mud amount in the level sensor monitors stock tank in it;
Pressure filter 4, pressure filter 4 downsides are provided with slag charge e Foerderanlage 6;
Clean water basin 15;
Connect by system of pipe and valve 16 between contamination pond 1, one-level stock tank 10, pressure filter 4 and the clean water basin 15.
Pressure filter 4 has water leg 17, and water leg 17 is connected with clean water basin 15.
System of pipe and valve 16 between contamination pond 1 and the one-level stock tank 10 is provided with removing sludge 7.
System of pipe and valve 16 between one-level stock tank 10 and the pressure filter 4 is provided with and send stock pump 19.
System of pipe and valve 16 between one-level stock tank 10 and the clean water basin 15 is provided with force (forcing) pump 18.
Pressure filter 4 is provided with pressure transmitter 3.
Be provided with liquid level sensor in one-level stock tank 10, the clean water basin 15.
Described pre-screening plant 8 is the individual layer linear vibrating screen.
Equipment topworks adopts PLC to control automatically.
Embodiment:
Useless slurry is stored in the contamination pond 1, and removing sludge 7 will give up to starch and be transported to pre-screening plant 8 in the PLC control tube valve system 16, and the vibrating motor of pre-screening plant 8 is opened.The above particle of 1mm is screened out, fall into slag charge e Foerderanlage 6, obtain one-level and handle slag charge 2, deliver to the stock ground, sieve back mud enters one-level stock tank 10, is provided with the twi-tier blade agitator in the one-level stock tank 10, be convenient to abundant stirring, PLC control agitator 9 is started working, and can add a certain amount of chemical agent this moment as required, as be used to adjust mud acid base equilibrium acid or alkali or improve the flocculation agent or the flocculating aids of the strainability of mud with Chinese.Standby after stirring.
Pressure filter 4 is opened, and pressure filter 4 filter plates compress, and send the mud after stock pump 19 will stir to adopt the mode of low pressure and mass flow to deliver to pressure filter 4 through system of pipe and valve 16, carries out extrusion dehydration.Valve state in the system of pipe and valve 6 is that press filtration valve 12 and press filtration cleaning valve 14 are opened at this moment, and cleaning valve 11 and clear water cleaning valve 13 are closed.When reaching set(ting)value, pressure sends signal by the pressure transmitter in the tensimeter 3, PLC control send stock pump 19 to close, this moment, press filtration valve 12 and cleaning valve 11 were closed, clear water cleaning valve 13 and press filtration cleaning valve 14 are opened, starting force (forcing) pump 18 adopts the mode of high-pressure low-flow to continue slurry conveyed to pressure filter 4, clear water after this process is filtered simultaneously flows into clean water basin 15 through water leg 17 and pipeline, and pressure filter 4 internal filter cakes form gradually, and pumping pressure rises gradually.Pressure filter 4 enters packing state, and Controlling System picks up counting, after reaching the setting dwell time.The air compressor machine Air blowing valve is opened the filter cake in the pressure filter is oppositely blown, and the residual moisture between filter cake and the filter plate is blown out.The filter press filter board block-by-block draws back discharging subsequently, and slag charge e Foerderanlage 6 will unload the slag charge that falls and be delivered to the stock ground.After discharging finishes, send stock pump 19 and force (forcing) pump 18 work, press filtration cleaning valve 14 is closed, and cleaning valve 11, press filtration valve 12 and clear water cleaning valve 13 are opened, and clean sending stock pump 19, force (forcing) pump 18 and pipeline, and system entered next workflow after cleaning was finished.
Be provided with liquid level sensor and the fresh water pump that to adjust height in the clean water basin 15.When liquid level attained to a high place, fresh water pump was opened, and the clear water in the clean water basin 15 is delivered to the slurrying water tank.Because equipment and pipeline need to clean in each workflow, so must store a certain amount of clear water in the clean water basin 15, when high water tank was reduced to low liquid level, fresh water pump quit work, and to guarantee equipment self a certain amount of clear water deposit is arranged.
Sewage after pump and pipeline clean enters one-level stock tank 10 after collecting, mix with mud in the one-level stock tank 10, as the part producing raw material of next workflow.
Whole plant adopts the automatic control of adjustable parameters, and each topworks's action is finished automatically by PLC control.Local parameter such as dwell pressure, dwell time, gassing time, pond and stock tank liquid level and discharging time etc., can manually set according to the real work situation.

Claims (10)

1, a kind of fast dewatering method of waste jet grouting cement paste is characterized in that carrying out according to the following steps:
1) pre-treatment: useless slurry is collected after transferpump is delivered to pre-screening plant (8), particle diameter in the useless slurry is sifted out greater than the particle of 1mm obtain one-level and handle slag charge (2);
2) stirring, chemical agent add: the slurry transportation after will sieving is in the one-level stock tank (10) that is provided with agitator (9), add acid, alkali as required in order to adjust the pH value of mud, with the discharging of satisfying extruding back clear water, extruding back clear water repeats slurrying to equipment washing or extruding back clear water requirement; Add flocculation agent or flocculating aids, to improve filtration efficiency, standby after stirring;
3) extrusion dehydration:, carry out extrusion dehydration with sending the mud after stock pump (19) will stir to adopt the mode of low pressure and mass flow to deliver to pressure filter (4) through system of pipe and valve (16).When pressure reaches certain set(ting)value, close and send stock pump (19), starting force (forcing) pump (18) adopts the mode of high-pressure low-flow to continue slurry conveyed to pressure filter (4), when pressure reaches final set(ting)value, and behind the pressurize certain hour, oppositely blowing with pressurized air further dries up moisture, collects the water that squeezes out simultaneously to clean water basin (15);
4) pipeline cleaning, discharging and clear water loopback: utilize force (forcing) pump (18), send clear water scavenging pump and the system of pipe and valve (16) of stock pump (19) after system of pipe and valve (16) is with a small amount of press filtration; Unclamp pressure filter (4), the second-stage treatment slag charge (5) after the extruding is discharged on the slag charge e Foerderanlage (6), deliver to stacking place of interim slag charge; Clear water loopback: after the water yield of water tank reaches certain liquid level, deliver to the slurrying special water box by fresh water pump;
Obtain the clear water of 60%-75% in the slag charge of volume-diminished to 25% and the slurry that gives up through above step.
2, a kind of fast dewatering equipment of waste jet grouting cement paste comprises contamination pond (1), it is characterized in that:
One-level stock tank (10) is equipped with pre-screening plant (8) on it, anti-precipitation agitator (9) is installed in it;
Pressure filter (4), pressure filter (4) downside is provided with slag charge e Foerderanlage (6);
Clean water basin (15);
Connect by system of pipe and valve (16) between contamination pond (1), one-level stock tank (10), pressure filter (4) and the clean water basin (15).
3, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: pressure filter (4) has water leg (17), and water leg (17) is connected with clean water basin (15).
4, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: the system of pipe and valve (16) between contamination pond (1) and the one-level stock tank (10) is provided with removing sludge (7).
5, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: the system of pipe and valve (16) between one-level stock tank (10) and the pressure filter (4) is provided with and send stock pump (19).
6, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: the system of pipe and valve (16) between one-level stock tank (10) and the clean water basin (15) is provided with force (forcing) pump (18).
7, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: pressure filter (4) is provided with pressure transmitter (3).
8, according to the fast dewatering equipment of claim 2 or 3 or 6 described a kind of waste jet grouting cement pastes, it is characterized in that: be provided with liquid level sensor in one-level stock tank (10) and the clean water basin (15).
9, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: described pre-screening plant (8) is the individual layer linear vibrating screen.
10, the fast dewatering equipment of a kind of waste jet grouting cement paste according to claim 2 is characterized in that: equipment topworks adopts PLC to control automatically.
CN2009100631243A 2009-07-10 2009-07-10 Waste jet grouting cement paste fast dewatering method and device thereof Active CN101607782B (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491605A (en) * 2011-11-16 2012-06-13 河海大学 Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame
CN103408207A (en) * 2013-08-26 2013-11-27 黑旋风工程机械开发有限公司 Integrated test device and method for dredging, dewatering and drying sludge in river and lake
CN103739185A (en) * 2014-01-29 2014-04-23 郑波 Sludge and sewage treatment system of drainage facility
CN104445860A (en) * 2014-11-02 2015-03-25 北京工业大学 Mud and water separation method for waste drilling sludge of cast-in-situ bored pile
CN107352764A (en) * 2017-08-29 2017-11-17 上海市基础工程集团有限公司 Discarded slurry curing process and reuse method
CN110092567A (en) * 2019-04-11 2019-08-06 湖南锦佳环保科技有限公司 A kind of shield soil processing method
CN110372160A (en) * 2019-06-17 2019-10-25 浙江省建工集团有限责任公司 A kind of cast-in-situ bored pile Muddy Bottoms waste material slurry curing separating process
CN112957782A (en) * 2021-03-19 2021-06-15 朱焕 Continuous filter press and using method thereof
CN113735411A (en) * 2021-11-03 2021-12-03 中南大学湘雅医院 Environment-friendly mud-water separation disinfecting equipment for sludge press filtration vehicle
CN115008559A (en) * 2022-06-27 2022-09-06 广东木森态新材料科技有限公司 Process method for hot-pressing high-water-content plywood

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IT1150823B (en) * 1982-04-09 1986-12-17 Libra Sa DEVICE FOR THE AUTOMATIC ADJUSTMENT OF THE LEVEL OF A PUMPING TANK
CN100478290C (en) * 2006-04-26 2009-04-15 江苏聚慧科技有限公司 Construction method by utilizing solidified earth from sludge
CN201483647U (en) * 2009-07-10 2010-05-26 黑旋风工程机械开发有限公司 Rotary spraying quick dewatering equipment of wasted cement paste

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491605A (en) * 2011-11-16 2012-06-13 河海大学 Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame
CN103408207A (en) * 2013-08-26 2013-11-27 黑旋风工程机械开发有限公司 Integrated test device and method for dredging, dewatering and drying sludge in river and lake
CN103408207B (en) * 2013-08-26 2014-09-24 黑旋风工程机械开发有限公司 Integrated test device and method for dredging, dewatering and drying sludge in river and lake
CN103739185A (en) * 2014-01-29 2014-04-23 郑波 Sludge and sewage treatment system of drainage facility
CN103739185B (en) * 2014-01-29 2015-07-15 北京奇思恒通工程技术有限公司 Sludge and sewage treatment system of drainage facility
CN104445860A (en) * 2014-11-02 2015-03-25 北京工业大学 Mud and water separation method for waste drilling sludge of cast-in-situ bored pile
CN107352764A (en) * 2017-08-29 2017-11-17 上海市基础工程集团有限公司 Discarded slurry curing process and reuse method
CN110092567A (en) * 2019-04-11 2019-08-06 湖南锦佳环保科技有限公司 A kind of shield soil processing method
CN110372160A (en) * 2019-06-17 2019-10-25 浙江省建工集团有限责任公司 A kind of cast-in-situ bored pile Muddy Bottoms waste material slurry curing separating process
CN112957782A (en) * 2021-03-19 2021-06-15 朱焕 Continuous filter press and using method thereof
CN112957782B (en) * 2021-03-19 2022-05-27 桂林汇东机械设备有限公司 Continuous filter press and using method thereof
CN113735411A (en) * 2021-11-03 2021-12-03 中南大学湘雅医院 Environment-friendly mud-water separation disinfecting equipment for sludge press filtration vehicle
CN115008559A (en) * 2022-06-27 2022-09-06 广东木森态新材料科技有限公司 Process method for hot-pressing high-water-content plywood

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