CN217582222U - Underground large-flow cache grouting filling unit - Google Patents

Abstract

The utility model provides a large-traffic buffer memory slip casting filling unit in pit through grouting pump and a plurality of storage thick liquid agitator tank, has solved preparation, transport, slip casting from ground to the continuity of operation problem in different spaces in the pit, and conveying pressure, export pressure and the slip casting pressure three that ground industry filled can realize quick response, coordinated control. The unit can move underground according to the condition that the working face of the mine is continuous, has the buffering function, avoids the difficult problems of excavation and difficult supporting of a large-section buffer chamber, and improves the grouting efficiency and the equipment adaptability to a great extent. For the grouting filling of the goaf of the underground working face, the coal pillar grouting reinforcement has wide application prospect, and the grouting efficiency and the equipment adaptability are greatly improved. The unit has the functions of buffering and grouting, the slurry conveyed by the main pipeline can be firstly cached into a large-capacity slurry storage stirring system at the tail part of the unit, and the piston of the slurry cylinder performs reciprocating motion, so that the grouting and filling operation can be flexibly performed on a target area.

Description

Underground large-flow cache grouting filling unit

Technical Field

The utility model relates to a green mine collecting space area slip casting technical field specifically is a large-traffic buffer memory slip casting filling unit in pit.

Background

The preparation of the goaf waste rock slurry filling slurry is generally divided into ground preparation and underground preparation. The prepared slurry is typically transported to the target work surface using a pipeline. In the process of underground drilling and grouting, grouting and pipe blockage often need to stop equipment operation for troubleshooting and pipe cleaning; when workers switch grouting and drilling, corresponding auxiliary preparation work is required; when the underground geological conditions are complex, shutdown is often required to be matched with a mining method and related measures. Therefore, the inevitable time loss caused by grouting pipe blockage, the inevitable interruption time caused by switching grouting drilling and equipment starting and stopping and a series of unpredictable engineering problems cause difficulty in realizing real preparation, conveying and grouting continuous operation in practical engineering application, and the slurry is conveyed to the residual space of the underground goaf by adopting head end pressurization, so that the pressure control of a next single power source is difficult to convey in a long distance, and the quick response and coordination control of the conveying pressure, the outlet pressure and the underground grouting pressure of ground industrial filling are difficult to realize.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a large-traffic buffer memory slip casting fills unit in pit, the device is simple, convenient to use, and efficiency and equipment adaptability are filled in the at utmost improvement, need research and development mining intelligent slip casting to fill the unit, realize safe high-efficient slip casting and fill.

The utility model discloses a following technical scheme realizes:

the underground high-flow cache grouting filling unit comprises a grouting pump and a plurality of slurry storage stirring tanks, wherein the grouting pump is communicated with the slurry storage stirring tanks through slurry suction pipes, and adjacent slurry storage stirring tanks are communicated through a communicating device; the slurry storage stirring tank comprises a slurry storage tank body, a slurry suction tap, a plurality of stirrers and a sealing cover; inhale thick liquid tap one end and insert that the storage thick liquid jar is internal, the other end is connected with the grouting pump through inhaling the thick liquid pipe, and a plurality of agitator distributes in the storage thick liquid jar is internal for stir the internal thick liquid of storage thick liquid jar, a plurality of sealed lids correspond the upper end that sets up at each agitator, and the top of sealed lid assembly at the storage thick liquid jar body.

Preferably, a plurality of slurry storage stirring tanks are sequentially connected in series through the communicating vessel.

Preferably, the stirrer comprises an explosion-proof transmission device, a transmission shaft and a plurality of multi-piece stirring blades, the explosion-proof transmission device is assembled on the sealing cover, one end of the transmission shaft is arranged on the sealing cover and is in driving connection with the explosion-proof transmission device, and the other end of the transmission shaft is assembled with the plurality of multi-piece stirring blades.

Furthermore, the stirrer comprises an explosion-proof transmission device, a transmission shaft and a plurality of multi-piece stirring blades, wherein the explosion-proof transmission device is assembled on the sealing cover, one end of the transmission shaft is arranged on the sealing cover and is in driving connection with the explosion-proof transmission device, and the other end of the transmission shaft is assembled with the plurality of multi-piece stirring blades.

Further, the transmission shaft is vertically placed in the slurry storage tank body, and the length of the transmission shaft corresponds to the depth of the slurry storage tank body.

Preferably, the pulp suction tap is arranged at the port in the pulp storage tank body close to the bottom of the pulp storage tank body.

Preferably, the slurry storage tank body and the sealing cover are in sealing connection through flanges or are in welding connection.

Preferably, the bottom of the slurry storage stirring tank is provided with a pulley.

Preferably, a chassis, a high-pressure oil pump, an explosion-proof motor, an oil cylinder and two groups of slurry cylinders are arranged in the grouting pump, the explosion-proof motor, the oil cylinder and the two groups of slurry cylinders are arranged on the chassis, the explosion-proof motor is in driving connection with the oil cylinder through the high-pressure oil pump, and the oil cylinder is respectively in control connection with the two groups of slurry cylinders; one end of each group of slurry is provided with a slurry outlet, and the other end is provided with a slurry inlet; the slurry inlet is communicated with a slurry suction pipe, and the slurry outlet is connected with a main pipeline in the roadway.

Preferably, the slurry outlet is provided with a slurry discharge valve.

Preferably, the pulp storage tank body, the sealing cover and the stirrer are made of stainless steel materials.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model provides a large-traffic buffer memory slip casting filling unit in pit through grouting pump and a plurality of storage thick liquid agitator tank, has solved preparation, transport, slip casting from ground to the continuity of operation problem in different spaces in the pit, and conveying pressure, export pressure and the slip casting pressure three that ground industry filled can realize quick response, coordinated control. The unit can move underground according to the condition that the working face of the mine is continuous, has the buffering function, avoids the difficult problems of excavation and difficult supporting of a large-section buffer chamber, and improves the grouting efficiency and the equipment adaptability to a great extent. For the grouting filling of the goaf of the underground working face, the coal pillar grouting reinforcement has wide application prospect, and the grouting efficiency and the equipment adaptability are greatly improved. The unit has the functions of buffering and grouting, the slurry conveyed by the main pipeline can be firstly cached in the large-capacity slurry storage stirring system at the tail part of the unit, the piston of the slurry cylinder performs reciprocating motion, the slurry suction and grouting work of the slurry cylinder is completed, and the grouting filling operation can be flexibly performed on a target area.

Furthermore, a plurality of slurry storage stirring tanks are sequentially connected in series through the communicating vessels, linear arrangement in narrow space can be realized, spatial layout of underground roadways is adapted, and therefore the slurry storage stirring tanks can be connected in series linearly or a new filling unit is added to realize large-flow pumping in the pit.

Further, the agitator includes explosion-proof transmission, transmission shaft and a plurality of multi-disc formula stirring paddle leaf, and stirring paddle leaf is rotatory along fixed direction under transmission's drive, at rotatory in-process, orders about the material and is axial rotation and radial rotation, can effectually stir the mixture to the material.

Further, the transmission shaft is vertically placed in the slurry storage tank body, the length of the transmission shaft corresponds to the depth of the slurry storage tank body 11, and the defect that slurry at the bottom cannot be stirred and precipitated due to the fact that a transverse shaft is caused is avoided.

Furthermore, the slurry storage tank body and the sealing cover are in sealing connection or welding connection through flanges, and process pipe holes for observation, temperature measurement, pressure measurement and the like can be formed in the slurry storage tank body and the sealing cover according to requirements.

Furthermore, the bottom of the slurry storage stirring tank is provided with a pulley, so that the slurry storage stirring tank can be moved in a roadway according to actual construction requirements, and transportation is facilitated.

Furthermore, two ends of the grouting pump are respectively provided with a set of slurry suction valve and a set of slurry discharge valve, and two different slurries can be respectively sucked and discharged, so that each filling unit can at least drain 4 high-pressure hoses for grouting, and the grouting units are mutually independent and do not interfere during respective drilling and grouting, so that distributed supply is realized.

Drawings

FIG. 1 is a vertical view of a medium-well underground large-flow buffer grouting filling unit of the present invention;

fig. 2 is a top view of the medium-well underground large-flow buffer grouting filling unit of the utility model;

fig. 3 is the utility model discloses well underground ortho position slip casting construction scheme.

In the figure: 1-grouting pump; 2-slurry storage stirring tank; 3-explosion-proof motor; 4, an oil cylinder; 5-slurry cylinder; 6, a pulp outlet; 7-a pulp inlet; 8-a communicating vessel; 9-a pulley; 10-a pulp suction tap; 11-a pulp storage tank body; 12-a stirrer; 13-explosion-proof transmission; 14-a sealing cover; 15-a transmission shaft; 16-multi-blade stirring blades; 17-a pulp suction pipe; 18-a chassis; 19-a high pressure oil pump; 20-main pipeline; 21-slurry discharge high-pressure hose; 22-slurry discharge valve; 23-grouting and drilling; and 24, collecting the slurry in the goaf.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1 and 2, the utility model provides a large-traffic buffer memory slip casting fills unit in pit, the device is simple, convenient to use, and efficiency and equipment adaptability are filled in the at utmost improvement, need research and development mining intelligent slip casting to fill the unit, realize safe high-efficient slip casting and fill.

Specifically, the underground high-flow cache grouting filling unit comprises a grouting pump 1 and a plurality of slurry storage stirring tanks 2, wherein the grouting pump 1 is communicated with the slurry storage stirring tanks 2 through slurry suction pipes 17, and adjacent slurry storage stirring tanks 2 are communicated through communicators 8; the slurry storage and stirring tank 2 comprises a slurry storage tank body 11, a slurry suction tap 10, a plurality of stirrers 12 and a sealing cover 14; inhale thick liquid tap 10 one end and insert in the thick liquid storage tank body 11, the other end is connected with grouting pump 1 through inhaling thick liquid pipe 17, and a plurality of agitator 12 distributes in the thick liquid storage tank body 11 for stir the thick liquid in the thick liquid storage tank body 11, and a plurality of sealed lid 14 corresponds the setting in the upper end of each agitator 12, and sealed lid 14 assembles at the top of the thick liquid storage tank body 11.

Specifically, a plurality of store up thick liquid agitator tank 2 and loop through linker 8 series connection and set up, can realize arranging at narrow and small space linearity, adapt to underworkings spatial layout, consequently can be to storing up thick liquid agitator tank linear series connection or increasing new filling unit in order to realize large-traffic pumping in the pit.

Specifically, agitator 12 includes explosion-proof transmission 13, transmission shaft 15 and a plurality of multi-disc formula stirring paddle 16, explosion-proof transmission 13 assembles on sealed lid 14, the one end setting of transmission shaft 15 is on sealed lid 14 to be connected with explosion-proof transmission 13 drive, a plurality of multi-disc formula stirring paddle 16 of other end assembly, stirring paddle under transmission's drive, it is rotatory along fixed direction, at rotatory in-process, orders about the material and does axial rotation and radial rotation, can effectually stir the mixture to the material.

Specifically, the transmission shaft 15 is vertically arranged in the slurry storage tank body 11, and the length of the transmission shaft 15 corresponds to the depth of the slurry storage tank body 11, so that the defect that the bottom slurry cannot be stirred and precipitated due to the transverse shaft is avoided.

Specifically, the pulp suction tap 10 is provided at a port in the pulp storage tank 11 near the bottom of the pulp storage tank 11.

Specifically, the slurry storage tank body 11 and the sealing cover 14 are in flange sealing connection or welding connection, and process pipe holes for observation, temperature measurement, pressure measurement and the like can be formed according to requirements.

Specifically, store up the bottom of thick liquid agitator tank 2 and set up pulley 9, can remove in the lane according to actual construction needs, the transportation of being convenient for.

Specifically, a chassis 18, a high-pressure oil pump 19, an explosion-proof motor 3, an oil cylinder 4 and two groups of slurry cylinders 5 are arranged in the grouting pump 1, the explosion-proof motor 3, the oil cylinder 4 and the two groups of slurry cylinders 5 are arranged on the chassis 18, the explosion-proof motor 3 is in driving connection with the oil cylinder 4 through the high-pressure oil pump 19, and the oil cylinder 4 is respectively in control connection with the two groups of slurry cylinders 5; one end of each of the two groups of slurry cylinders 5 is provided with a slurry outlet 6, and the other end is provided with a slurry inlet 7; the slurry inlet 7 is communicated with a slurry suction pipe 17, and the slurry outlet 6 is connected with a main pipeline 20 in a roadway.

Specifically, the grout outlet 6 is provided with a grout discharging valve assembly 22, two ends of the grouting pump are respectively provided with a grout sucking valve and a grout discharging valve, and two different kinds of grout can be sucked and discharged respectively, so that each filling unit can drain 4 high-pressure hoses for grouting, and the grouting units are independent from each other and do not interfere with each other during drilling and grouting respectively, so that distributed supply is realized.

Specifically, the slurry storage tank 11, the sealing cover 14 and the stirrer 12 are made of stainless steel materials.

The utility model discloses grouting pump 1 is the hydraulic pressure of high pressure, low stroke frequency, high thrust from inhaling reciprocating pump. The slurry storage stirring tank 2 consists of a slurry storage tank body 11, a stirrer 12, a slurry suction tap 10 and a sealing cover 14. One end of the slurry suction pipe 17 is connected with the slurry suction tap 10, and the other end is connected with the slurry inlet 7 of the self-priming reciprocating grouting pump. Two ends of the communicating vessel 8 are respectively connected with the slurry discharging ports at the bottoms of the two slurry storage stirring tanks 2. The unit is integrally connected in series, can be linearly arranged in a narrow space, and is suitable for spatial layout of underground roadways. The unit has the functions of buffering and grouting, the grout conveyed by the main pipeline 20 can be firstly cached in the grout storage tank body 11 with the large capacity at the tail part of the unit, the piston of the grouting pump grout cylinder performs reciprocating motion, the grout sucking and grouting work of the grout cylinder is completed, and the grouting filling operation can be flexibly performed on a target area.

The slurry storage stirring tank 11 can be linearly connected in series or a new filling machine set is added according to the actual flow requirement so as to realize large-flow pumping in the well.

Examples

A certain mine of Yulin from Shaanbei province adopts gangue slurry to fill a goaf, namely a set of pulping system is established in a mine industrial square, the gangue in a gangue bin is crushed to a certain particle size, and is made into slurry meeting the conveying requirement concentration according to a certain proportion with water, the gangue slurry is pumped to a grouting filling unit of a roadway adjacent to a filling working face by an industrial pump of the industrial square, and then the roadway adjacent to the filling working face is used for carrying out ortho-position grouting filling on the goaf behind the working face, so that the full treatment of the gangue in coal mines is realized. According to the annual treatment cost of the gangue, the grouting flow is calculated and determined to be 48m & lt 3 & gt/h, the height of a slurry storage stirring barrel is not more than 2.2m, the length is about 5-7 m, the capacity of a single barrel is 20m & lt 3 & gt-25 m & lt 3 & gt, and the maximum flow of each high-flow cache grouting filling unit is 50m & lt 3 & gt/h/, so that two high-flow cache grouting filling units are arranged in the adjacent working face roadway by considering one use and one standby under the well.

As shown in FIG. 3, the construction steps of the ortho-position grouting are as follows:

1. goaf drilling construction

And (3) drilling is constructed according to the designed parameters of the ortho-position grouting drill hole 23, a sleeve is immediately put after the drilling construction is finished, cement hole sealing is carried out on the sleeve, a valve is installed at the starting end of the ortho-position grouting drill hole sleeve, the valve is in a closed state before filling, and poisonous and harmful gases such as gas in the goaf are prevented from flowing out.

2. Slurry pipeline transport

And conveying the prepared high-concentration gangue slurry to an underground high-flow buffer grouting filling unit of an auxiliary transportation roadway of the adjacent working face through a main pipeline 20 by virtue of a filling industrial pump.

3. Down-hole stirring slurry storage system cache

The gangue slurry firstly enters the underground slurry storage stirring tank 2, the slurry is prevented from precipitating through the stirrer 12, and the communicating vessel 8 is kept in an open state in the slurry storage process.

4. Slurry suction and discharge of underground grouting system

The grouting pump 1 sucks the gangue slurry in the slurry storage stirring tank 2 into the slurry cylinder 5 through a slurry suction pipe 17 through a slurry suction tap 10; the piston in the oil cylinder 4 reciprocates, the piston of the slurry cylinder 4 reciprocates at the same time, and the slurry suction and discharge valve group acts to finish the slurry suction and discharge work of the slurry cylinder;

5. goaf ortho-position grouting

Laying a slurry discharge high-pressure hose 21 and respectively entering the grouting drill holes 23 to form goaf slurry 24. Two slurry discharging high-pressure hoses 21 are designed for grouting in each drilling hole, each mining intelligent grouting filling unit can drain 4 slurry discharging high-pressure hoses 21 for grouting, and the drilling holes are independent and do not interfere with each other during grouting.

6. Slip casting bore hole switching

The unit can continuously carry out waste rock slurry to two drilling at least at every turn and fill until on the current slip casting drilling manometer registration reach slip casting drilling outlet pressure's threshold value, open the adjacent drilling slip casting valve that connects in advance, close the stop valve near last slip casting drilling, begin to carry out the slip casting to other slip casting drilling and fill.

7. Post-grouting pipeline cleaning

And circulating in this way, when the reading of the pressure gauge on the grouting drill hole reaches the pressure threshold of the grouting drill hole, switching the drill hole until the filling workload on the same day is completed. After grouting, the pump sucks and discharges clear water to flush the grout cylinder and the overflowing part until clear water flows out of the grout outlet pipe.

To sum up, the utility model provides a large-traffic buffer memory slip casting filling unit in pit, this unit is stored up thick liquid agitator tank 2, inhale thick liquid pipe 17 and linker 8 by an grouting pump 1, two and constitute. Wherein: the grouting pump 1 is a hydraulic self-priming reciprocating pump with high pressure, low stroke frequency and high thrust. The slurry storage stirring tank 2 consists of a slurry storage tank body 11, a stirrer 12, a slurry suction tap 10 and a sealing cover 14. One end of the slurry suction pipe 17 is connected with the slurry suction tap 10, and the other end is connected with the slurry inlet 7 of the self-priming reciprocating grouting pump. Two ends of the communicating vessel 8 are respectively connected with the slurry discharging ports at the bottoms of the two slurry storage stirring tanks 2. The units are integrally connected in series, can be linearly arranged in a narrow space and is suitable for spatial layout of an underground roadway, so that the slurry storage stirring tank 2 can be linearly connected in series or a new filling unit is added to realize large-flow pumping in the underground. The unit has the function of buffering, slip casting concurrently, can buffer earlier the thick liquid that main line 20 carried to the storage thick liquid jar body 11 of unit afterbody large capacity, and the piston of slip casting pump thick liquid jar carries out reciprocating motion, accomplishes the suction and the slip casting work of thick liquid jar, can carry out the slip casting operation to the target area in a flexible way.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as being covered by the claims.

Claims (10)

1. The underground high-flow cache grouting filling unit is characterized by comprising a grouting pump (1) and a plurality of slurry storage stirring tanks (2), wherein the grouting pump (1) and the plurality of slurry storage stirring tanks (2) are communicated through a slurry suction pipe (17), and adjacent slurry storage stirring tanks (2) are communicated through a communicating vessel (8); the slurry storage and stirring tank (2) comprises a slurry storage tank body (11), a slurry suction faucet (10), a plurality of stirrers (12) and a sealing cover (14); inhale in thick liquid tap (10) one end inserts the storage thick liquid jar body (11), the other end is connected with grouting pump (1) through inhaling thick liquid pipe (17), and a plurality of agitator (12) distribute in the storage thick liquid jar body (11) for the thick liquid to the storage thick liquid jar in (11) stirs, and a plurality of sealed lid (14) correspond the upper end that sets up at each agitator (12), and sealed lid (14) assemble at the top of the storage thick liquid jar body (11).

2. The downhole high-flow cache grouting filling unit according to claim 1, characterized in that a plurality of slurry storage stirring tanks (2) are sequentially connected in series through a communicating vessel (8).

3. The downhole high-flow cache grouting filling unit according to claim 1, wherein the stirrer (12) comprises an explosion-proof transmission device (13), a transmission shaft (15) and a plurality of multi-piece stirring blades (16), the explosion-proof transmission device (13) is assembled on the sealing cover (14), one end of the transmission shaft (15) is arranged on the sealing cover (14) and is in driving connection with the explosion-proof transmission device (13), and the other end of the transmission shaft is assembled with the plurality of multi-piece stirring blades (16).

4. A downhole high-flow cache grouting filling unit according to claim 3, characterized in that the transmission shaft (15) is vertically placed in the slurry storage tank (11), and the length of the transmission shaft (15) is arranged corresponding to the depth of the slurry storage tank (11).

5. A downhole high flow cache grouting filling unit according to claim 1, characterised in that the slurry suction tap (10) is arranged at a port in the slurry storage tank (11) close to the bottom of the slurry storage tank (11).

6. A downhole high-flow cache grouting filling unit according to claim 1, wherein the grout storage tank (11) and the sealing cover (14) are connected by flange sealing or welding.

7. A downhole high flow cache grouting filling unit according to claim 1, characterised in that the bottom of the slurry storage tank (2) is provided with a pulley (9).

8. The underground high-flow cache grouting filling unit according to claim 1, wherein a chassis (18), a high-pressure oil pump (19), an explosion-proof motor (3), an oil cylinder (4) and two groups of slurry cylinders (5) are arranged in the grouting pump (1), the explosion-proof motor (3), the oil cylinder (4) and the two groups of slurry cylinders (5) are arranged on the chassis (18), the explosion-proof motor (3) is in driving connection with the oil cylinder (4) through the high-pressure oil pump (19), and the oil cylinder (4) is respectively in control connection with the two groups of slurry cylinders (5); one end of each of the two groups of slurry cylinders (5) is provided with a slurry outlet (6), and the other end is provided with a slurry inlet (7); the slurry inlet (7) is communicated with a slurry suction pipe (17), and the slurry outlet (6) is connected with a main pipeline (20) in the roadway.

9. A downhole high-flow cache grouting filling unit according to claim 8, characterised in that a slurry discharge valve assembly (22) is arranged on the slurry outlet (6).

10. The downhole high-flow cache grouting filling unit according to claim 1, characterized in that the slurry storage tank (11), the sealing cover (14) and the stirrer (12) are made of stainless steel.

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