CN107511926A - A kind of device and grouting method for continuously stirring supply slurries - Google Patents

A kind of device and grouting method for continuously stirring supply slurries Download PDF

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Publication number
CN107511926A
CN107511926A CN201710858701.2A CN201710858701A CN107511926A CN 107511926 A CN107511926 A CN 107511926A CN 201710858701 A CN201710858701 A CN 201710858701A CN 107511926 A CN107511926 A CN 107511926A
Authority
CN
China
Prior art keywords
stirring
slurries
cavity
supply
feed flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710858701.2A
Other languages
Chinese (zh)
Inventor
王玥
李广跃
马召林
史继尧
徐启鹏
皮乾勇
焦雷
宋妍
高攀
何伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Tunnel Group Co Ltd CRTG
Original Assignee
China Railway Tunnel Group Co Ltd CRTG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Tunnel Group Co Ltd CRTG filed Critical China Railway Tunnel Group Co Ltd CRTG
Priority to CN201710858701.2A priority Critical patent/CN107511926A/en
Publication of CN107511926A publication Critical patent/CN107511926A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/003Methods for mixing
    • B28C5/006Methods for mixing involving mechanical aspects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0887Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing provided with sieves or filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete

Abstract

A kind of device and grouting method for continuously stirring supply slurries, including stirring motor and stirring cavity, welding stirring system bracket at the top of the stirring cavity, stirring motor is fixed on stirring system bracket, the front end of stirring motor is provided with agitating shaft, and agitating shaft is provided with stirring vane, and the side for stirring cavity is provided with feed flow cavity, the connection wall of stirring cavity and feed flow cavity is upper and lower to be respectively provided with an opening, and the area being each open is more than 25cm2Opening is equipped with piece of metal screen pack, a kind of device for continuously stirring supply slurries of the present invention, it can keep treating that cementing slurries are not isolated, do not generated heat, matching that stable, the property noted is good for a long time, the continuity of slurries supply is realized during large volume mortar depositing construction, has prevented cement mortar because standing time is long so as to phenomenon that is rotten or even scrapping.Improve mortar depositing construction efficiency, it is ensured that the grind slurries quality of mortar depositing construction.

Description

A kind of device and grouting method for continuously stirring supply slurries
Technical field:
The invention belongs to civil engineering slurry injection technique field, relates generally to a kind of device for continuously stirring supply slurries and slip casting side Method.
Background technology:
In field of civil engineering, slurry injection technique is in underground engineering, Tunnel Engineering, mining engineering, reclamation, side slope and foundation ditch In work progress etc. engineering, being widely used in improves country rock character and closure percolating water.Injecting paste material is noted using grouting equipment Enter in stratum, the physical mechanics intensity on stratum can be effectively improved, control the deformation on stratum, while reduce porosity, reduction is oozed Saturating coefficient, so as to reach the purpose of precipitation sealing, excavating pre-reinforcement, the filling of underground structure behind space, water rich strata precipitation Sealing, reinforcement for rushing danger, landslide reinforcement, goaf filling etc. play the effect for being difficult to substitute.
In slurry injection technique, the injecting paste material that use range is most wide, dosage is maximum is cement single slurry, its conventional ratio of mud Scope is 0.8:1~1.2:1(Water:Cement), coordinate powerful slip casting machine, its consumption is commonly greater than 3m3/h.It is but traditional Bulk cement carrier or artificial mix and stir supply slurries system, are finally that large volume finished product slurries are put into temporary container to supply slip casting machine Take out use.(Note:The conventional casting concrete ratio of mud is 0.4:1)
If temporary container volume is smaller, the continuity of mortar depositing construction operation can be substantially reduced, while increase manually mixes slurry Ratio of mud deviation;If temporary container volume is larger(Such as:More than 1m3), because the cement grout ratio of mud is very high, in this situation Under, start surface segregation layering occur in 5min, 20 ~ 30min isolation layerings reach maximum, and its bleeding is often beyond 20%, seriously The performance of design proportioning slurries is influenceed, it is of short duration to stop note because of geological conditions or equipment debugging reason during such as mortar depositing construction Slurry construction(Such as half an hour), the size performance in temporary container can further offset from design proportioning, in fact it could happen that slurries heating, can Note property is deteriorated, or even the situation that slurries are scrapped.
The content of the invention:
Above-mentioned in order to overcome the shortcomings of, the invention provides a kind of device and grouting method for continuously stirring supply slurries.
The technical solution adopted for the present invention to solve the technical problems:
Due to using technical scheme as described above, the present invention has following superiority:
A kind of device for continuously stirring supply slurries, including stirring motor and stirring cavity, the stirring cavity top welding are stirred System bracket is mixed, stirring motor is fixed on stirring system bracket, and the front end of stirring motor is provided with agitating shaft, and agitating shaft is provided with Stirring vane, the side for stirring cavity are provided with feed flow cavity, and the connection wall for stirring cavity and feed flow cavity upper and lower be respectively provided with one and opened Mouthful, the area being each open is more than 25cm2 , opening is equipped with piece of metal screen pack.
The rotating speed of the stirring motor is 100 ~ 150r/min.
The stirring cavity is fabricated to cylinder using quality steel plate, and its volume is 0.7 ~ 2m3, highly not higher than 1.2m.
The diameter of the agitating shaft is more than 1cm.
The stirring vane has 2-3 groups, and uniform welding is on agitating shaft.
The stirring vane is distributed using plane crisscross or different group of cross-distribution of in-line.
The clearance control of the stirring cavity and stirring vane is in 2 ~ 5cm.
The bottom welding tapping valve of the stirring cavity.
A kind of grouting method for the device for continuously stirring supply slurries, including artificial slurry of mixing supply slurries or the confession of concrete tank car To slurries;
Wherein, slurry supply slurries are manually mixed to comprise the following steps:
A, according to the cement mortar proportioning of the volume sum of stirring cavity and feed flow cavity, and design, required raw material is calculated Dosage;
B, water, cement and other additives are sequentially added in stir chamber body, open stirring motor, drive stirring vane, stirring Finished product slurries are obtained after 10min;
C, slurries are drawn in feed flow cavity and carries out mortar depositing construction, while stirring motor is continued for work, it is ensured that grind slurries quality Uniform stabilization;
D, treat that slurries suction finishes, the inwall of agitating shaft, stirring vane, stirring cavity and feed flow cavity is rinsed with clear water, is opened Tapping valve discharges waste liquid;
E, slurries are prepared again, repeatedly the step of A-D;
Concrete tank car supply slurries comprise the following steps:
The cement mortar finished product that in-car makes is poured into stir chamber, opens stirring motor, while slurries are drawn in feed flow cavity Mortar depositing construction is carried out, when liquid level drops to the connected entrance of bottom, supplements slurries from in-car again.
Slurry supply slurries device, repeat step A-E, the requirement with real continuity for slurry can be mixed using two simultaneously.
A kind of device and grouting method for continuously stirring supply slurries of the present invention, can keep treating water filling for a long time Slurry liquid do not isolated, do not generate heat, matches that stable, the property noted is good, and slurries supply is realized during large volume mortar depositing construction Continuity, prevented cement mortar because standing time is long so as to phenomenon that is rotten or even scrapping.Mortar depositing construction efficiency is improved, It ensure that the grind slurries quality of mortar depositing construction.
Brief description of the drawings:
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 top view.
In figure:1st, stirring motor, 2, stirring system bracket, 3, agitating shaft, 4, stirring vane, 5, stirring cavity, 6, discharge opeing Valve, 7, screen pack, 8, feed flow cavity.
Embodiment:
The present invention can be explained in more detail by example below, the open purpose of the present invention is intended to protect in the scope of the invention All changes and improvements, the invention is not limited in the following examples;
A kind of device and grouting method device for continuously stirring supply slurries, including stirring motor 1, stirring system bracket 2, stirring Axle 3, stirring vane 4, stir cavity 5, tapping valve 6, screen pack 7, feed flow cavity 8.Wherein the rotating speed of stirring motor 1 be 100 ~ 150r/min, front end connection diameter is more than 1cm agitating shaft 3, along 2 ~ 3 groups of stirring vanes 4 of length uniform welding of agitating shaft 3, Every group of stirring vane 4 can use plane crisscross to be distributed, and can also use different group of cross-distribution of in-line, stirring system bracket 2 It can be made using thick 5mm angle steel or angle bar, form firm bracket with the stirring firm welding of cavity 5, then connect with stirring motor 1 Connect.Stirring cavity 5 is fabricated to cylinder using quality steel plate, and its volume is 1 ~ 2m3, below height 1.2m, in order to manually mix The situation of slurry, the clearance control of stirring cavity 5 and stirring vane 4 are advantageous to being sufficiently stirred for slurries in 2 ~ 5cm.Feed flow cavity 8 Equally be welded using quality steel plate, link with stirring cavity 5 and be integrated, at the two shared steel plate above and below Ge Kai mono- Mouthful so that the slurries between the two can freely connect flowing, according to stirring cavity 5 volume with(More)Slurry needed for grouting pump Liquid feed speed, single aperture area should be greater than 25cm2, each opening installation piece of metal screen pack 7, prevent stone foreign matter from entering Enter feed flow cavity 8 to be sucked by slip casting machine.Tapping valve 6 is welded on the bottom of stirring cavity 5, is easy to clean dress after mortar depositing construction Put discharge waste liquid.
Described with reference to the accompanying drawings a kind of device and grouting method for continuously stirring supply slurries, if using manually mixing slurry Method, then according to the cement mortar proportioning of the volume sum of stirring cavity 5 and feed flow cavity 8, and design, calculate required raw material Dosage, sequentially add water, cement and other additives in stirring cavity 5, open stirring motor 1, drive stirring vane 4, Finished product slurries are obtained after stirring 10min, can start to draw slurries progress mortar depositing construction in feed flow cavity 8, while stir electricity Machine 1 is continued for work, it is ensured that the uniform stabilization of grind slurries quality, treats that slurries suction finishes, rinses agitating shaft 3 with clear water, stirs The inwall of blade 4, stirring cavity 5 and feed flow cavity 8 is mixed, tapping valve 6 is opened and discharges waste liquid, slurries are prepared again, such as to slip casting The continuity of work requires very high, can use two smaller volumes, such as 0.8m simultaneously3Slurry mixing tank device, realization manually mix slurry With the continuous productive process of slurries supply;If supplying slurries using concrete tank car, the cement mortar finished product that in-car makes is poured into stirring In chamber 5, stirring motor 1 is opened, while draws slurries in feed flow cavity 8 and carries out mortar depositing construction, treats that liquid level drops to bottom During connected entrance, slurries are supplemented from in-car again.
It is prior art not state part in above content carefully, therefore does not run business into particular one and state.

Claims (10)

1. a kind of device for continuously stirring supply slurries, including stirring motor(1)With stirring cavity(5), it is characterised in that:It is described Stir cavity(5)Weld stirring system bracket in top(2), stirring motor(1)It is fixed on stirring system bracket(2)On, stirring electricity Machine(1)Front end be provided with agitating shaft(3), agitating shaft(3)It is provided with stirring vane(4), stir cavity(5)Side be provided with feed flow Cavity(8), stir cavity(5)With feed flow cavity(8)Connection wall it is upper and lower be respectively provided with an opening, the area being each open is more than 25cm2 , opening is equipped with piece of metal screen pack(7).
A kind of 2. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The stirring motor (1)Rotating speed be 100 ~ 150r/min.
A kind of 3. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The stirring cavity (5)Cylinder is fabricated to using quality steel plate, its volume is 0.7 ~ 2m3, highly not higher than 1.2m.
A kind of 4. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The agitating shaft(3) Diameter be more than 1cm.
A kind of 5. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The stirring vane (4)There are 2-3 groups, and uniform welding is in agitating shaft(3)On.
A kind of 6. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The stirring vane (4)Using plane crisscross distribution or different group of cross-distribution of in-line.
A kind of 7. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The stirring cavity (5)With stirring vane(4)Clearance control in 2 ~ 5cm.
A kind of 8. device for continuously stirring supply slurries according to claim 1, it is characterised in that:The stirring cavity (5)Bottom welding tapping valve(6).
A kind of 9. grouting method for the device for continuously stirring supply slurries, it is characterised in that:Including it is artificial mix slurry supply slurries or Person's concrete tank car supplies slurries;
Wherein, slurry supply slurries are manually mixed to comprise the following steps:
A, according to stirring cavity(5)With feed flow cavity(8)Volume sum, and design cement mortar proportioning, calculate needed for The dosage of raw material;
B, in stirring cavity(5)Water, cement and other additives are inside sequentially added, open stirring motor(1), drive stirring vane (4), finished product slurries are obtained after stirring 10min;
C, in feed flow cavity(8)Interior absorption slurries carry out mortar depositing construction, while stirring motor(1)It is continued for work, it is ensured that slurry The uniform stabilization of liquid quality;
D, treat that slurries suction finishes, agitating shaft is rinsed with clear water(3), stirring vane(4), stirring cavity(5)With feed flow cavity(8) Inwall, open tapping valve(6)Discharge waste liquid;
E, slurries are prepared again, repeatedly the step of A-D;
Concrete tank car supply slurries comprise the following steps:
The cement mortar finished product that in-car makes is poured into stir chamber(5)It is interior, open stirring motor(1), while in feed flow cavity(8)It is interior Draw slurries and carry out mortar depositing construction, when liquid level drops to the connected entrance of bottom, supplement slurries from in-car again.
A kind of 10. grouting method for the device for continuously stirring supply slurries, it is characterised in that:Slurry supply can be mixed using two simultaneously Slurries device, repeat step A-E, the requirement with real continuity for slurry.
CN201710858701.2A 2017-09-21 2017-09-21 A kind of device and grouting method for continuously stirring supply slurries Pending CN107511926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710858701.2A CN107511926A (en) 2017-09-21 2017-09-21 A kind of device and grouting method for continuously stirring supply slurries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710858701.2A CN107511926A (en) 2017-09-21 2017-09-21 A kind of device and grouting method for continuously stirring supply slurries

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Publication Number Publication Date
CN107511926A true CN107511926A (en) 2017-12-26

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112985999A (en) * 2021-02-09 2021-06-18 中铁隧道局集团有限公司 Grouting model test device and method used under coupling effect of multi-field environment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112985999A (en) * 2021-02-09 2021-06-18 中铁隧道局集团有限公司 Grouting model test device and method used under coupling effect of multi-field environment
CN112985999B (en) * 2021-02-09 2022-06-07 中铁隧道局集团有限公司 Grouting model test device and method used under coupling effect of multi-field environment

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