CN208364132U - A kind of coal mine flood prevention and treatment device - Google Patents

Abstract

The utility model relates to the technical field of coal mine construction, in particular to a coal mine water hazard prevention and control device, comprising a slurry tank, a mixer and a grouting pump mixer, a grouting pipe, a grouting sleeve and a grouting core pipe; the grouting sleeve A number of grouting holes are evenly opened on the surface of the grouting sleeve, the top of the grouting sleeve is fixedly connected with a sealing limit sleeve, and the upper part of the grouting sleeve is fixedly connected with a fixing ring located in the sealing limit sleeve. The inner upper side is provided with an inner ring whose position corresponds to the fixing ring, and a silicone rubber sleeve is arranged in the gap between the sealing limit sleeve and the fixing ring and the inner ring; the sealing limit sleeve is located at the position of the inner ring and the fixing ring A first clamp and a second clamp are sleeved on the outer surface of the first clamp and the inner surfaces of the first clamp and the second clamp are respectively fixed and connected with a number of extrusion columns; the utility model stratifies the grouting design of long drilling Through the design of the first clamp, the second clamp and the silicone rubber sleeve, etc., the dual effects of layered grouting and efficient sealing are achieved.

Description

A kind of coal mine flood prevention and treatment device

Technical field

The utility model relates to coal mine technical field of construction, and in particular to a kind of coal mine flood prevention and treatment device.

Background technique

Coal mine flood influences the progress and quality of mine engineering construction, deteriorates the work situation of worker, increases the row of mine Drainage facility and effluent cost bring insecurity factor to coal production, and serious person even floods well accident, cause life and The heavy losses of property easily link up old cellar ponding, cause mine perviousness accident, coal mine flood during coal mining Accident also results in country rock and corrodes reduction, induces secondary disaster, and water resource is destroyed, and resource can adopt rate reduction, ton coal effluent cost High, China's coalfield-hydrogeology complicated condition, there are about 18% coal reserves to be exploited by more serious in China at present Water damage threaten, preventing and controlling are carried out to it with important and urgent realistic meaning.

Slip casting method is to inject certain curable slurries in crack or the hole of Rock soil Foundations, to improve its physical mechanics The method of property, slip casting method is because of its simple and easy and low-cost advantage, with extremely in mineral engineering and geotechnical engineering Extensively, but layer of sand preferable for permeability or the very poor non-uniform subsidence area of clay layer and quality etc. of permeability, long Casing slip casting effect is unsatisfactory, and e.g., in the preferable layer of sand of permeability, long casing slip casting can make slurries in a wide range of interior large area Diffusion, that in the case where too big extruding force, grouting serous fluid would not be diffused into crack or hole inside Rock soil Foundation；For The very poor clay layer of permeability, long casing slip casting can be such that slurry pressure disperses, and be difficult that pressure is concentrated to break through inside clay layer；For The non-uniform subsidence area of quality, long casing slip casting can make slurries migration in crack, and uniformly cannot have the diffusion of pressure, because This at present, delamination pour slurry can be according in regional scope, different levels and degree, requires according to the difference of reinforcing, difference It treats, and can be with repeatedly slip-casting；It is actually rare at present for the research of delamination pour slurry prevention and treatment water damage, be in Authorization Notice No. Disclose a kind of coal mine flood prevention and treatment device, including slurry pool in the Chinese patent of CN205206784U, blender, grouting pump, And the mixer being connected with grouting pump, mixer connect slip casting casing by pipeline, set on the outer tube wall of slip casting sleeve upper end Reinforced Hoop is set, setting expands hoop on the outer tube wall of slip casting lower end, arranges in the shape of a spiral on the outer tube wall of slip casting casing middle-end Injected hole is set, and injected hole is located at Reinforced Hoop and expands between hoop, and packing, the hole edge of injected hole is arranged in outside in the hole of injected hole The angle of cut of setting guard aperture muscle on edge, guard aperture muscle and slip casting casing is 31 degree, and every two is between the injected hole on same center line Hangnail is set, and slip casting core pipe is arranged in the inside of slip casting casing, and rubber stopper is arranged in the upper end of slip casting core pipe.The utility model can have The mitigation mine drainage burden of effect saves draining electricity consumption, reduces cost of ton coal, improves work efficiency and quality.

But coal mine flood prevention and treatment device is had the following deficiencies: and is carried out using rubber stopper to slip casting core pipe and slip casting casing Sealing, sealing effect is undesirable, and is equally also inconvenient to be moved, therefore keeps layer-by-layer slip casting more difficult.

The slip casting of long drilled holes, first it cannot be guaranteed that in entire long range every section be all homogeneous, therefore identical Under pressure, the section of good penetrability will slip casting it is more, the section of poor permeability will slip casting it is few, effect is undesirable, if it is desired to protecting The region of card poor permeability will also reach good slip casting effect, it is necessary to increase grouting pressure, and increase a large amount of grouting serous fluids Amount, in this way for the technical requirements of equipment, the cost performance to slip casting is all unfavorable, it is therefore desirable to delamination pour slurry.

At present two o'clock is for the difficult point and core of delamination pour slurry prevention and treatment water damage, 1, a set of suitable delamination pour slurry of design Device；2, guarantee the leakproofness of delamination pour slurry device under high pressure；This two o'clock is extremely for delamination pour slurry prevention and treatment coal mine flood It is advantageous.

Summary of the invention

The utility model is to solve prevention and treatment water damage to need asking for the leakproofness of delamination pour slurry and grouting device under high pressure Topic provides a kind of coal mine flood prevention and treatment device.

In order to solve the above technical problems, the technology employed by the present utility model is a kind of coal mine flood prevent and treat device, Including slurry pool, blender and grouting pump；The mixing part of the blender stretches in slurry pool, between grouting pump and slurry pool It is connected by input pipe, grouting pump is also connected with efferent duct, and the terminal of efferent duct is connected with mixer, and mixer is connected with slip casting Pipe, the terminal of Grouting Pipe are connected with the slip casting core pipe being vertically arranged, and the outer sheath of the slip casting core pipe is equipped with the note being vertically arranged Casing is starched, the side wall of the slip casting casing and bottom are uniformly provided with several injected holes, are fixedly connected at the top of slip casting casing Seal limit sleeve, seal the top drilling of limit sleeve, the outlet end of Grouting Pipe pass through the top drilling of sealing limit sleeve and with note Core pipe connection is starched, the top of slip casting casing is fixedly connected with the fixed ring being located in sealing limit sleeve, the sealing limit sleeve Upper inside be provided with position it is corresponding with fixed ring and be located at fixed ring top inner ring, it is described sealing limit sleeve top It is mutually fixedly connected with the top of inner ring by integrally formed ring fishplate bar, between sealing limit sleeve and fixed ring and the inner ring Silicone rubber sleeve is provided in gap；The lateral surface of sealing limit sleeve at inner ring and fixed ring position is socketed with the first clip With the second clip, the inner surface of the first clip and the second clip has been respectively fixedly connected with several squeezing rods, corresponding with squeezing rod The surface of sealing limit sleeve offer and accommodate the through-hole that passes through of squeezing rod, the surface of inner ring corresponding with the first clip position On be uniformly provided with several extrusion cavities, be uniformly provided with several extruding on the surface of fixed ring corresponding with the second clip position The connecting pin of the extrusion cavities that column passes through, first clip and the second clip passes through the second bolt assembly respectively and is connected.

After the working principle of the utility model is stirred for the slurries in slurry pool by blender, then by grouting pump and mix After the effect of clutch, overflowed by slip casting core pipe, first slip casting when, slip casting core pipe overflow slurries by injected hole spilling, into The slip casting of row lower layer, then unclamps two the second bolt assemblies, unclamps the first clip and the second clip, and silicone rubber sleeve is not at this time Friction limit is carried out to slip casting core pipe again, and no longer slip casting bobbin seal is moved up slip casting core pipe, then will be tightened again Two the second bolt assemblies, then squeezing rod on the first clip and the second clip squeezes silicone rubber sleeve, from fixed ring and inner ring it Between gap squeeze out silicone rubber sleeve squeezed in the surface of slip casting core pipe, to play the work of sealing to slip casting casing With, and squeezed from the silicone rubber sleeve of several extrusion cavities extrusion is same as the surface of slip casting core pipe, further increase friction limit Position effect, the utility model is easy to operate, quick, facilitates and carries out layer-by-layer slip casting, and plays to slip casting core pipe and slip casting casing Preferable limit and sealing effect.

Compared with prior art the utility model has the following beneficial effects:

Using utility model device by the way that by the grouting design stratification of long drilled holes, each layer of distance is very short, in this way In the region of very little, the quality of country rock is relatively uniform, therefore slip casting is also more uniform, and casing can concentrate pressure toward week Slip casting is enclosed, then up one layer of slip casting, slip casting effect is good, and cost performance is high, and grouting cost is low；

The utility model is by passing through the first clip of design, the second clip and silicon for the grouting design stratification of long drilled holes The design such as rubber sleeve, layering-sealing process that is ingenious and being efficiently completed casing have reached delamination pour slurry and efficient sealed Economic benefits and social benefits fruit, this is the no design of the prior art.

The utility model is easy to operate, quick, facilitates and carries out layer-by-layer slip casting, and plays to slip casting core pipe and slip casting casing Preferable limit and sealing effect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that a kind of coal mine flood prevents and treats device.

Fig. 2 is the structural schematic diagram that water damage described in Fig. 1 prevents and treats slip casting casing in device.

Fig. 3 is the cross-sectional view that water damage described in Fig. 1 prevents and treats line A-A in device.

Fig. 4 is the cross-sectional view that water damage described in Fig. 1 prevents and treats line B-B in device.

Fig. 5 is the cross-sectional view that water damage described in Fig. 1 prevents and treats line C-C in device.

It is marked in figure as follows:

1- slurry pool, 2- blender, 3- grouting pump, 4- input pipe, 5- efferent duct, 6- mixer, 7- Grouting Pipe, 8- sealing Ball valve, 9- pressure gauge, 10- slip casting core pipe, 11- slip casting casing, 12- injected hole, 13- seal limit sleeve, 14- the first bolt group Part, 15- fixed ring, the first clip of 16-, the second clip of 17-, 18- silicone rubber sleeve, 19- squeezing rod, 20- inner ring.

Specific embodiment

Below in conjunction with specific embodiment, the utility model is described in further detail.

Embodiment 1

As shown in Figure 1, a kind of coal mine flood prevents and treats device, including slurry pool 1, blender 2 and grouting pump 3；The stirring The mixing part of machine 2 stretches in slurry pool 1, is connected between grouting pump 3 and slurry pool 1 by input pipe 4, grouting pump 3 is also connected with There is efferent duct 5, the terminal of efferent duct 5 is connected with mixer 6, and mixer 6 is connected with Grouting Pipe 7, and the terminal of Grouting Pipe 7 is connected with The slip casting core pipe 10 being vertically arranged, the outer sheath of the slip casting core pipe 10 are equipped with the slip casting casing 11 being vertically arranged, the slip casting The side wall of casing 11 and bottom are uniformly provided with several injected holes 12, and the top of slip casting casing 11 is fixedly connected with sealing limit sleeve 13, seal the top drilling of limit sleeve 13, the outlet end of Grouting Pipe 7 pass through the top drilling of sealing limit sleeve 13 and with slip casting core Pipe 10 connects；As shown in Fig. 2, the top of slip casting casing 11 is fixedly connected with the fixed ring 15 being located in sealing limit sleeve 13, institute State sealing limit sleeve 13 upper inside be provided with position it is corresponding with fixed ring 15 and positioned at 15 top of fixed ring inner ring 20(is as shown in Figure 5), the top of the sealing limit sleeve 13 is mutually fixed with the top of inner ring 20 by integrally formed ring fishplate bar It connects, is provided with silicone rubber sleeve 18 in the gap between the sealing limit sleeve 13 and fixed ring 15 and inner ring 20；Positioned at inner ring 20 and 15 position of fixed ring at sealing limit sleeve 13 lateral surface be socketed with the first clip 16 and second clip 17(such as Fig. 3 and Shown in Fig. 4), the inner surface of the first clip 16 and the second clip 17 has been respectively fixedly connected with several squeezing rods 19, with squeezing rod 19 The surface of corresponding sealing limit sleeve 13, which offers, accommodates the through-hole that squeezing rod 19 passes through, corresponding with 16 position of the first clip Inner ring 20 surface on be uniformly provided with several extrusion cavities, on the surface of fixed ring 15 corresponding with 16 position of the second clip It is uniformly provided with the extrusion cavities that several squeezing rods 19 pass through, the connecting pin of first clip 16 and the second clip 17 passes through respectively Second bolt assembly is connected.

Slip casting casing 11 is entered in hole, and fixes slip casting casing 11 by fixed bracket, the slurries in slurry pool are logical After effect after crossing blender stirring, then by grouting pump and mixer, when by the spilling of slip casting core pipe 10, first slip casting, note The slurries that slurry core pipe 10 is overflowed are overflowed by injected hole 12, and lower layer's slip casting is carried out, and then unclamp two the second bolt assemblies, make the One clip 16 and the second clip 17 unclamp, and silicone rubber sleeve 18 no longer carries out friction limit to slip casting core pipe at this time, and no longer Slip casting casing 11 is sealed, slip casting core pipe 10 is moved up, then will tighten two the second bolt assemblies again, then the first clip 16 Silicone rubber sleeve 18 is squeezed with the squeezing rod 19 on the second clip 17, the silicon rubber that the gap between fixed ring 15 and inner ring 20 squeezes out Gum cover 18 is squeezed in the surface of slip casting core pipe, to play the role of sealing to slip casting casing 11, and from several extrusions The silicone rubber sleeve 18 that hole squeezes out equally is squeezed in the surface of slip casting core pipe 10, further increases friction position-limiting action.

Further, hard seal ball valve 8 is installed in Grouting Pipe 7, injection slurry can be adjusted and be controlled.

Further, it is separately installed with pressure gauge 9 in efferent duct 5 and Grouting Pipe 7, pressure when for slip casting is shown, just In adjusting.

Further, the top of the slip casting casing 11 and the lower part of sealing limit sleeve 13 have been respectively fixedly connected with protrusion and have turned over Side is fixedly connected by 14 phase of the first bolt assembly with the raised flange on sealing limit sleeve 13 positioned at slip casting casing 11, is convenient for Installation and removal.

The edge on the top of slip casting casing 11 is connected with upward flange, and the lower edge of sealing limit sleeve 13 also connects It is connected to upward flange, the flange on the top of slip casting casing 11 extend into the groove of the flange of the lower part of sealing limit sleeve 13 Both interior to be mutually matched, border is fixedly connected by several 14 phases of the first bolt assembly.

Further, the tapered shape in bottom end of the slip casting casing 11 makes slip casting casing 11 enter long drilled holes constantly not Vulnerable to resistance.

Further, gap is 10-50mm between the lower part of the inner ring 20 and the top of fixed ring 15.

Claims (6)

1. A coal mine water hazard prevention and control device, characterized in that: it comprises a slurry pool (1), a mixer (2) and a grouting pump (3); the stirring part of the mixer (2) extends into the slurry pool (1) , the grouting pump (3) and the slurry pool (1) are connected by an input pipe (4), the grouting pump (3) is also connected with an output pipe (5), and the terminal of the output pipe (5) is connected with a mixer ( 6), the mixer (6) is connected with a grouting pipe (7), and the terminal end of the grouting pipe (7) is connected with a vertically arranged grouting core pipe (10), the outer side of the grouting core pipe (10) A grouting sleeve (11) arranged vertically is sleeved, a plurality of grouting holes (12) are evenly opened on the side wall and the bottom of the grouting sleeve (11), and the top of the grouting sleeve (11) is fixed A sealing limit sleeve (13) is connected, the top opening of the sealing limit sleeve (13), the liquid outlet end of the grouting pipe (7) passes through the top opening of the sealing limit sleeve (13) and is connected with the grouting core. The pipe (10) is connected, and the upper part of the grouting sleeve (11) is fixedly connected with a fixing ring (15) located in the sealing limit sleeve (13), and the inner upper side of the sealing limit sleeve (13) is provided with a position The inner ring (20) corresponding to the fixing ring (15) and located on the upper part of the fixing ring (15), the upper part of the sealing limit sleeve (13) and the upper part of the inner ring (20) pass through an integrally formed ring connecting plate In a fixed connection, a silicone rubber sleeve (18) is provided in the gap between the sealing limit sleeve (13) and the fixing ring (15) and the inner ring (20); ) at the position of the sealing limit sleeve (13) is sleeved with a first clamp (16) and a second clamp (17), and the inner parts of the first clamp (16) and the second clamp (17) Several extrusion columns (19) are fixedly connected to the surface respectively, and the surface of the sealing limit sleeve (13) corresponding to the extrusion column (19) is provided with a through hole for accommodating the extrusion column (19) to pass through, and is connected with the first Several extrusion holes are evenly opened on the surface of the inner ring (20) corresponding to the position of the clamp (16), and a number of extrusion holes are evenly opened on the surface of the fixing ring (15) corresponding to the position of the second clamp (17). In the extrusion hole through which the pressing column (19) passes, the connecting ends of the first clamp (16) and the second clamp (17) are respectively connected by second bolt assemblies. 2. A coal mine water hazard prevention and control device according to claim 1, characterized in that: a hard-sealed ball valve (8) is installed on the grouting pipe (7). 3. A coal mine water hazard prevention and control device according to claim 1 or 2, characterized in that a pressure gauge (9) is installed on the output pipe (5) and the grouting pipe (7), respectively. 4. A coal mine water hazard prevention and control device according to claim 1 or 2, characterized in that: the upper part of the grouting sleeve (11) and the lower part of the sealing limit sleeve (13) are respectively fixedly connected with a raised flipper. The raised flanges on the grouting sleeve (11) and the sealing limiting sleeve (13) are fixedly connected through the first bolt assembly (14). 5. A coal mine water hazard prevention and control device according to claim 1 or 2, characterized in that: the bottom end of the grouting sleeve (11) is in a conical shape. 6. A coal mine water hazard prevention and control device according to claim 1 or 2, wherein the gap between the lower part of the inner ring (20) and the upper part of the fixing ring (15) is 10-50mm.