CN116146246A - Constant-pressure grouting device for mining filling of mine - Google Patents
Constant-pressure grouting device for mining filling of mine Download PDFInfo
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- CN116146246A CN116146246A CN202310213471.XA CN202310213471A CN116146246A CN 116146246 A CN116146246 A CN 116146246A CN 202310213471 A CN202310213471 A CN 202310213471A CN 116146246 A CN116146246 A CN 116146246A
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- 238000005065 mining Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 78
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 230000000670 limiting effect Effects 0.000 claims description 102
- 238000005192 partition Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 10
- 238000010992 reflux Methods 0.000 description 9
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a constant-pressure grouting device for filling and mining of mines, which comprises a slurry storage tank for storing slurry, a grouting pump, a liquid inlet pipeline communicated with one port of the grouting pump, and a liquid outlet pipeline communicated with the other port of the grouting pump, wherein an inlet of the liquid inlet pipeline is positioned in the slurry storage tank; the liquid outlet pipeline is circumferentially provided with a plurality of buffer cavities, and the buffer cavities adaptively shrink or expand according to the pressure in the liquid outlet pipeline. According to the constant-pressure grouting device for filling mining of the mine, when the internal pressure of the liquid outlet pipeline is too high, the buffer cavity is contracted, so that the internal space of the liquid outlet pipeline is increased, the internal pressure of the liquid outlet pipeline is reduced, and when the internal pressure of the liquid outlet pipeline is too low, the buffer cavity is automatically expanded, so that the internal space of the liquid outlet pipeline is reduced, the internal pressure of the liquid outlet pipeline is increased, and the internal pressure of the liquid outlet pipeline is kept constant.
Description
Technical Field
The invention relates to the field of mining, in particular to a constant-pressure grouting device for filling mining of mines.
Background
In mining, in order to increase the strength of a cave, it is necessary to inject some curable slurry into cracks or pores of a rock foundation using a grouting pump to improve its physical and mechanical properties. In grouting, in order to ensure the normal use of the grouting pump and the grouting effect, the pressure in grouting needs to be kept constant within an optimal range.
For example, the patent with the authority of CN 109184748B and the authority date of 2022.05.03 entitled "pressure-controllable grouting device and method thereof" includes: a grouting pump for realizing remote transportation of grouting material; a grouting pipe connected with a grouting pump; the grouting pipe comprises a grouting hose and a deep interval membrane bag grouting flower pipe which are communicated with each other; and the deep interval membrane bag grouting flower pipe is provided with pressure valves with different pressures, and grouting with different depths is realized by configuring different grouting pressures so as to open the different pressure valves. The grouting device has the advantages that the pressure valves with different pressures are arranged on the deep diaphragm bag grouting flower pipe, grouting with different depths is realized by setting different grouting pressures, the grouting device is simple in structure and convenient to use, the on-site construction technician can grasp the grouting device conveniently, and the complexity of a grouting process is greatly reduced.
The prior art has the defects that when grouting around a rock tunnel is reinforced, as the common hard pipeline is used for conveying slurry, when a liquid outlet pipeline is blocked or the output pressure of a grouting pump is insufficient, the pressure inside the pipeline cannot be automatically regulated, so that the slurry cannot be in a constant range during injection, and the grouting quality is reduced.
Disclosure of Invention
The invention aims to provide a constant-pressure grouting device for filling mining of mines, which aims to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the constant-pressure grouting device for filling mining of the mine comprises a slurry storage tank for storing slurry, a grouting pump, a liquid inlet pipeline communicated with one port of the grouting pump, and a liquid outlet pipeline communicated with the other port of the grouting pump, wherein an inlet of the liquid inlet pipeline is positioned in the slurry storage tank;
the liquid outlet pipeline is circumferentially provided with a plurality of buffer cavities, and the buffer cavities adaptively shrink or expand according to the pressure in the liquid outlet pipeline.
Foretell mine filling exploitation constant voltage slip casting device, be provided with the shell on the drain pipe, the inside elasticity of shell is provided with high-pressure reflux mechanism, the activity of drain pipe inner wall is provided with the baffle, be provided with the cardboard on the baffle, the cardboard with the buffering cavity passes through the through-hole intercommunication, when the internal pressure of drain pipe is too big promote the cardboard removes will after the baffle is opened, high-pressure reflux mechanism pops out.
Foretell mine filling exploitation constant voltage slip casting device, high pressure return mechanism includes the back flow, back flow one end with the pulp storage tank intercommunication, the inside sliding connection of shell has the baffle, be provided with the connecting pipe on the baffle, the back flow other end with be provided with the bellows between the connecting pipe, the baffle with pass through elastic connection between the roof in the shell.
Foretell mine filling exploitation constant voltage slip casting device, the connecting pipe bottom is provided with drainage subassembly, drainage subassembly includes the drainage board, connecting pipe bottom rigid coupling has the fixed axle, the drainage board with the fixed axle rotates to be connected, the fixed axle with be provided with the torsional spring between the drainage board, the baffle bottom is provided with the spacing subassembly that is used for restricting drainage board swing range.
Foretell mine filling exploitation constant voltage slip casting device, spacing subassembly includes the gag lever post, baffle bottom rigid coupling has the pole setting, the gag lever post with pole setting sliding connection, be provided with first spacing portion on the gag lever post, first spacing portion with drainage board joint.
According to the constant-pressure grouting device for mining filling of the mine, the first telescopic rod is fixedly connected to the vertical rod, the second limiting part is arranged on the limiting rod, and the second limiting part is abutted to the end part of the first telescopic rod.
According to the constant-pressure grouting device for filling and mining of mines, the abutting blocks are fixedly connected to the drainage plates, the abutting portions are arranged on the limiting rods, and the abutting portions are located on the movement strokes of the abutting blocks.
According to the constant-pressure grouting device for mining filling of the mine, the wedge-shaped blocks are elastically connected to the vertical rods, and the limiting rods are abutted to the wedge-shaped blocks.
According to the constant-pressure grouting device for mining filling of the mine, the two limiting blocks are arranged on the limiting rod, the limiting grooves matched with the limiting blocks are formed in the vertical rods, and the limiting blocks are in sliding connection with the limiting grooves.
According to the constant-pressure grouting device for filling and mining of the mine, the bottom end of the fixed shaft is fixedly connected with the blocking block, and the blocking block is located on the movement stroke of the drainage plate.
In the technical scheme, the constant-pressure grouting device for filling mining of the mine is provided with the plurality of buffer cavities, when the internal pressure of the liquid outlet pipeline is overlarge, the buffer cavities shrink to enlarge the internal space of the liquid outlet pipeline, so that the internal pressure of the liquid outlet pipeline is reduced, when the internal pressure of the liquid outlet pipeline is overlarge, the buffer cavities automatically expand to reduce the internal space of the liquid outlet pipeline, so that the internal pressure of the liquid outlet pipeline is increased, the internal pressure of the liquid outlet pipeline is kept constant, and the constant pressure of slurry injection is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2, partially in section, at a-a;
FIG. 4 is a schematic view of the structure of FIG. 2 in partial cross-section at b-b;
FIG. 5 is a schematic side view of an embodiment of the present invention
FIG. 6 is a schematic view of the structure of FIG. 5 in partial cross-section at c-c-;
FIG. 7 is a schematic view of a partial cross-sectional structure at c-c-in FIG. 5 in another embodiment;
FIG. 8 is a schematic view of the overall structure of the interior of a housing according to another embodiment of the present invention;
FIG. 9 is a schematic view of the overall structure of a stop lever according to another embodiment of the present invention;
FIG. 10 is an enlarged schematic view of the partial structure of FIG. 3A;
FIG. 11 is an enlarged schematic view of a partial structure at B in FIG. 3;
fig. 12 is an enlarged schematic view of a partial structure at C in fig. 8.
Reference numerals illustrate:
1. a slurry storage tank; 2. a grouting pump; 3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a buffer cavity; 6. a housing; 7. a baffle; 8. a clamping plate; 9. a through hole; 10. an arc-shaped groove; 11. a slide rail; 12. a return pipe; 13. a partition plate; 14. a connecting pipe; 15. a bellows; 16. a first spring; 17. a drainage assembly; 18. a drainage plate; 19. a fixed shaft; 20. a limit component; 21. a limit rod; 21.1, a first limiting part; 21.2, a second limiting part; 21.3, an abutment; 21.4, limiting blocks; 22. a vertical rod; 23. wedge blocks; 24. a chute; 24.1, a limit groove; 24.2, avoiding grooves; 25. a first telescopic rod; 26. an abutment block; 27. a blocking piece; 36. a sector plate; 37. a second telescopic rod; 38. and a hinging seat.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-12, an embodiment of the present invention provides a constant pressure grouting device for filling mining in a mine, which includes a slurry storage tank 1 for storing slurry, a grouting pump 2, and a liquid inlet pipe 3 communicated with one port of the grouting pump 2, wherein the inlet of the liquid inlet pipe 3 is located inside the slurry storage tank 1, and further includes a liquid outlet pipe 4 communicated with the other port of the grouting pump 2; a plurality of buffer cavities 5 are arranged on the periphery of the liquid outlet pipeline 4, and the buffer cavities 5 are adaptively contracted or expanded according to the pressure in the liquid outlet pipeline 4.
Specifically, the slurry storage tank 1 is a hollow cube, one end of the liquid inlet pipe 3 is communicated with the inside of the slurry storage tank 1 and is close to the inner bottom wall of the slurry storage tank 1, the other end is communicated with one port of the slurry injection pump 2, one end of the liquid outlet pipe 4 is connected with the other port of the slurry injection pump 2, and the other end of the liquid outlet pipe 4 is deep under the rock soil layer, power is provided by the slurry injection pump 2, slurry in the slurry storage tank 1 is injected into the rock soil layer, which is not described in detail in the prior art, one of the core innovation points of the invention is that a liquid outlet pipe 4 with a buffer cavity 5 is provided, the buffer cavity 5 can be a vacuum cavity (the vacuum cavity is communicated with the outside and is provided with an air hole, the inside is in a negative pressure state by vacuumizing through a negative pressure machine), or an elastic piece is arranged in the buffer cavity 5, so that power is required when the internal pressure of the liquid outlet pipe 4 is too high, the buffer cavity 5 is contracted, so that the internal space of the liquid outlet pipe 4 is increased, so that the internal space of the liquid outlet pipe 4 is reduced, when the internal pressure of the liquid outlet pipe 4 is automatically expanded, the internal pressure of the liquid outlet pipe 4 is reduced, the internal pressure of the liquid outlet pipe 4 is automatically is increased, the internal pressure of the liquid outlet pipe 4 is basically, the constant, and the internal pressure of the liquid outlet pipe 4 is ensured, and the effect is basically is ensured, and the internal pressure is ensured when the internal pressure of the liquid 4 is increased.
Preferably, the liquid outlet pipe 4 is provided with a housing 6, a high-pressure backflow mechanism is elastically arranged in the housing 6, a baffle 7 is movably arranged on the inner wall of the liquid outlet pipe 4, the baffle 7 is movably used for communicating and closing the inner space of the liquid outlet pipe 4 and the inner space of the housing 6, a clamping plate 8 is arranged on the baffle 7, the inner wall of the liquid outlet pipe 4 is provided with an open slot, the open slot is communicated with the buffer cavity 5 through a through hole 9, the clamping plate 8 is movably and hermetically connected in the open slot in a sliding manner, thus pressure fluctuation in the buffer cavity 5 can cause the clamping plate 8 to move, when the internal pressure of the liquid outlet pipe 4 is overlarge, the clamping plate 8 is pushed to move so as to open the baffle 7, the high-pressure backflow mechanism pops up, particularly, the housing 6 is preferably a square shell and is fixedly connected above the liquid outlet pipe 4, the baffle 7 is an arc plate and two baffle plates are arranged at one end close to the grouting pump 2 and are all arranged below the shell 6 for plugging the opening of the shell 6, slurry is prevented from entering, an arc-shaped groove 10 matched with the baffle plates 7 is formed in the side wall of the liquid outlet pipeline 4, a negative pressure cavity is formed in the arc-shaped groove 10, a sliding rail 11 is fixedly connected to the baffle plates 7, two clamping plates 8 are arranged at one end of each baffle plate and are in a shape, one end of each baffle plate is simultaneously and slidably connected with the two sliding rails 11, the other end of each clamping plate is movably and sealingly connected with the opening groove, the high-pressure backflow mechanism can be regarded as a branch pipe of the liquid outlet pipeline 4 and is used for discharging redundant slurry in the liquid outlet pipeline 4, and the buffer cavity 5 can provide negative pressure for the clamping plates 8 under normal pressure, one end of each clamping plate 8 is simultaneously and slidably connected with the two sliding rails 11, a connecting effect is achieved, the two baffle plates 7 are attached together, when the pressure in the liquid outlet pipe 4 is too high (at this time, the pressure in the liquid outlet pipe 4 cannot be reduced to a normal value by only contracting the buffer cavity 5), the slurry in the liquid outlet pipe 4 can squeeze the buffer cavity 5, so that the buffer cavity 5 is compressed, the gas in the buffer cavity 5 is transferred to one end of the clamping plate 8, which is in dynamic sealing connection with the through hole 9, through the through hole 9, and the clamping plate 8 is squeezed, so that the clamping plate 8 moves in a direction away from the baffle 7, so that one end of the clamping plate 8, which is in sliding connection with the sliding rail 11, is separated from the sliding rail 11, so that the clamping plate 8 loses the connection effect, at this time, the baffle 7 is contracted to the inside of the arc-shaped groove 10 under the action of the negative pressure in the arc-shaped groove 10, so that the inlet of the shell 6 is opened, so that a high-pressure backflow mechanism is started, and redundant slurry in the liquid outlet pipe 4 is discharged, so that the pressure in the liquid outlet pipe 4 is reduced.
When the pressure in the liquid outlet pipe 4 is reduced to a normal value, the buffer cavity 5 and the clamping plate 8 are automatically reset under the vacuum pressure.
Preferably, the high-pressure reflux mechanism comprises a reflux pipe 12, one end of the reflux pipe 12 is communicated with the slurry storage tank 1, a partition 13 is slidably connected in the shell 6, a connecting pipe 14 is arranged on the partition 13, a corrugated pipe 15 is arranged between the other end of the reflux pipe 12 and the connecting pipe 14, the partition 13 is elastically connected with the inner top wall of the shell 6, in particular, an opening is arranged on the partition 13, one end of the reflux pipe 12 communicated with the slurry storage tank 1 is close to the top end of the slurry storage tank 1, namely, the reflux pipe 12 is higher than the slurry level in the slurry storage tank 1, the partition 13 is dynamically sealed with the inner wall of the shell 6, the connecting pipe 14 is positioned in the center of the partition 13 and is communicated with the liquid outlet pipeline 4 through the partition 13, one end of the corrugated pipe 15 is communicated with the connecting pipe 14, the other end of the corrugated pipe 15 is communicated with the reflux pipe 12, the elastic connection, that is, a first spring 16 is arranged between the baffle 13 and the inner top wall of the shell 6, one end of the first spring 16 is fixedly connected with the inner bottom wall of the shell 6, and the other end of the first spring 16 is fixedly connected with the baffle 13, so that the effect of the bottom end of the baffle 13 is abutted against the upper surface of the baffle 7 in a normal pressure state, the first spring 16 is in a compressed state, when the baffle 7 is opened, the restriction of the baffle 7 on the baffle 13 disappears, the elastic force of the first spring 16 is released, the baffle 13 slides towards the liquid inlet of the shell 6 along the inner wall of the shell 6, the redundant slurry flows into the connecting pipe 14 from the opening of the baffle 13, the baffle 13 drives the connecting pipe 14 to synchronously slide at the moment, the corrugated pipe 15 is stretched, so that the thickness difference of the baffle 7 is filled (a convex part is arranged at the inlet of the shell 6, and the baffle 13 automatically stops when the baffle 13 slides to abut against the convex part), slurry accumulation at the outlet of the housing 6 is avoided.
As another preferred embodiment, the bottom of the connecting pipe 14 is provided with the drainage component 17, the drainage component 17 includes the drainage plate 18, the bottom rigid coupling of connecting pipe 14 has the fixed axle 19, and fixed axle 19 passes baffle 13, the drainage plate 18 with fixed axle 19 rotates to be connected, fixed axle 19 with be provided with torsional spring (not shown in the figure) between the drainage plate 18, baffle 13 bottom is provided with the spacing subassembly 20 that is used for restricting the swing range of drainage plate 18, and specifically, the preferred square plate of drainage plate 18 just is provided with two, and two drainage plates 18 all rotate round fixed axle 19, all are provided with the torsional spring between two drainage plates 18 and the fixed axle 19, and the effort of two torsional springs is the direction that is against the thick liquid flow, and spacing subassembly 20 sets up on the rotation stroke of drainage plate 18, and is located near the one side of grouting pump 2, and the effect that so set up is that under the ordinary pressure condition, the effort of torsional spring is greater than the pressure of thick liquid for two drainage plates 18 and spacing subassembly 20 butt, and drainage plate 18 unable to swing in opposite direction when the pressure is too big (the pressure of thick liquid is greater than the elasticity of this torsional spring), thereby the steady flow of thick liquid is avoided flowing down the swing force of the vibration plate 18 to the vibration impact force of the tradition, thereby the vibration of thick liquid is avoided flowing down the fixed impact force of the drainage plate, and the vibration force of thick liquid is greatly broken.
Preferably, the limiting component 20 comprises a limiting rod 21, the limiting rod 21 comprises a horizontal section, the horizontal section is arranged below the bottom surface of the partition 13 (the partition 13 is horizontally arranged, the connecting pipe 14 is vertically arranged), the bottom end of the partition 13 is fixedly connected with a vertical rod 22, a part of the limiting rod 21 is slidably connected with the vertical rod 22, a first limiting part 21.1 is arranged at one end of the limiting rod 21, which is positioned at the horizontal section, of the limiting rod 21, the first limiting part 21.1 is clamped with the drainage plate 18 for limiting, a wedge block 23 is elastically connected to the vertical rod 22, and the other end of the horizontal section of the limiting rod 21 is abutted to the wedge block 23 through an abutting structure.
The upright 22 is fixedly connected with a first telescopic rod 25, a second limiting part 21.2 is arranged on the limiting rod 21, and the second limiting part 21.2 is abutted to the end part of the first telescopic rod 25.
An abutting block 26 is fixedly connected to the drainage plate 18, an abutting portion 21.3 is arranged on the limiting rod 21, and the abutting portion 21.3 is located on the movement stroke of the abutting block 26.
Specifically, the limiting rod 21, the upright rod 22 is fixedly connected to the angular bisectors of the two drainage plates 18, the upright rod 22 is provided with a chute 24 adapted to the limiting rod 21, one end of the limiting rod 21 is slidably connected with the chute 24 (i.e. the other end of the horizontal section of the limiting rod 21 is provided with a vertical section, a protruding part is arranged on the vertical section, the protruding part is slidably connected with the chute 24 and horizontally arranged), two side walls of the chute 24 are elastically connected with wedge blocks 23, the two wedge blocks 23 are respectively abutted with two sides of the protruding part of the limiting rod 21 to form wedge fit, a first limiting part 21.1 is arranged at one end of the limiting rod 21, the first limiting part 21.1 is abutted and limited with one surface of the drainage plate 18 facing the grouting pump 2, two side walls of the chute 24 are provided with avoiding grooves 24.2 (not shown in the figure), a second spring (not shown in the figure) is arranged between the wedge-shaped block 23 and the avoidance groove 24.2, the second limiting part 21.2 is a rod-shaped structure (i.e. a vertical section) of which the limiting rod 21 extends up and down, the abutting part 21.3 is horizontally arranged on the second limiting part 21.2 and is positioned at one side close to the drainage plate 18, a powerful spring (a spring with a larger stiffness coefficient is arranged in the first telescopic rod 25, the powerful spring is in a compressed state in an initial state and cannot stretch under the abutting action of the second limiting part 21.2, the powerful spring is not shown in the figure), one end of the first telescopic rod 25 is fixedly connected to the upright rod 22, the other end of the first telescopic rod is abutted to the second limiting part 21.2, the abutting part 21.3 is in a wedge-shaped structure, the bottom end of the abutting part is provided with a wedge-shaped surface, the abutting block 26 is fixedly connected to the drainage plate 18, one side close to the abutting part 21.3 is provided with an arc surface, the protruding part of the limiting rod 21 is positioned at the bottommost end of the chute 24 under the extrusion action of the wedge-shaped block 23 and the second spring, and meanwhile, the first limiting part 21.1 is positioned at the bottommost end and is clamped with the drainage plate 18, so that the drainage plate 18 cannot rotate towards the direction of the grouting pump 2 and can only rotate towards the vertical rod 22, unidirectional limiting of the drainage plate 18 is realized, when the pressure inside the liquid outlet pipeline 4 is extremely high, the pressure of slurry is higher than the pressure of the torsion spring, so that the drainage plate 18 swings towards the vertical rod 22, the abutting part 26 is driven to synchronously swing, when the arc-shaped surface of the abutting part 26 contacts with the wedge-shaped surface of the abutting part 21.3 and is extruded, the abutting part 21.3 is driven to vertically move upwards, the limiting rod 21 is driven to move upwards, the first limiting part 21.1 and the second limiting part 21.2 are driven to move upwards in the process of the upward movement of the limiting rod 21, as a result of the upward movement of the first limiting portion 21.1, the first limiting portion 21.1 is separated from the drainage plate 18, so that the limiting effect of the first limiting portion 21.1 on the drainage plate 18 is relieved, the drainage plate 18 can swing towards the direction of the grouting pump 2, as a result of the upward movement of the second limiting portion 21.2, the second limiting portion 21.2 is separated from the first telescopic rod 25, so that the limiting effect of the second limiting portion 21.2 on the first telescopic rod 25 is relieved, the elasticity of the powerful spring is released, the first telescopic rod 25 is driven to extend, the first telescopic rod 25 extends and abuts against the surface of the drainage plate 18, a supporting force is provided for the drainage plate 18, direct impact between the drainage plate 18 and the upright 22 is avoided, the drainage plate 18 rotates towards the direction of the grouting pump 2, the swing amplitude of the drainage plate 18 is increased, and damage of the drainage plate 18 under huge impact force of slurry is further avoided.
Further, after the elastic force of the strong spring in the first telescopic rod 25 is released, the length of the first telescopic rod 25 is restored to the normalized length, and when the drainage plate 18 swings to the end position of the first telescopic rod 25 each time, the strong spring is extruded, so that a buffering effect can be achieved on the drainage plate 18.
Further, the limiting rod 21 can drive one end of the limiting rod 21 in the chute 24 to vertically move upwards, the wedge surface of the limiting rod 23 is extruded in the upward moving process to enable the limiting rod 23 to slide towards the avoidance groove 24.2 and compress the second spring, when the limiting rod 21 continuously ascends, the end of the limiting rod can move to the top end of the limiting rod 23 until the limiting rod is separated from the limiting rod 23, at the moment, the extrusion effect of the limiting rod 21 on the limiting rod 23 is eliminated, the limiting rod 23 automatically resets under the action of the elastic force of the second spring, at the moment, the end of the limiting rod 21 is abutted with the horizontal surface of the limiting rod 23, the limiting rod 21 cannot move downwards, and therefore the limiting rod 21 is fixed at the position.
Further, two limiting blocks 21.4 are arranged on the limiting rod 21, namely, the limiting blocks are arranged at 21.4 at two sides of the protruding portion, limiting grooves 24.1 matched with the limiting blocks 21.4 are formed in the upright rods 22, namely, the limiting grooves 24.1 are formed in inner walls at two sides of the sliding grooves 24, and the limiting blocks 21.4 are slidably connected with the limiting grooves 24.1, so that the limiting rod 21 can be limited in the horizontal direction, and the limiting rod 21 can be prevented from moving horizontally when water flow is impacted.
Preferably, the bottom end of the fixed shaft 19 is fixedly connected with a blocking block 27, the blocking block 27 is located on the motion stroke of the drainage plate 18, specifically, the number of blocking blocks 27 is two, the short edge of the shape of the Chinese character 'L' is located on the rotation stroke of the drainage plate 18, and the contact surface between the blocking block 27 and the drainage plate 18 is provided with a buffer part (the contact surface made of elastic materials such as rubber, etc.), so that the effect is that when the pressure in the liquid outlet pipeline 4 is too large, the reverse limit of the limiting rod 21 to the drainage plate 18 is released, the drainage plate 18 can reversely swing to the buffer part of the blocking block 27, and the drainage plate 18 cannot swing to the other side of the blocking block 27 under the buffer and limit effect of the buffer part, thereby preventing the excessive swing of the drainage plate 18.
Further, the inlet of the connecting pipe 14 is hinged with a plurality of sector plates 36, and a second telescopic rod 37 is movably connected between the plurality of sector plates 36 and the inner side wall of the connecting pipe 14, specifically, the number of sector plates 36 is preferably four, and the second telescopic rods 37 are circumferentially arranged in an array at the inlet of the connecting pipe 14, hinge seats 38 are fixedly connected to the sector plates 36 and the inner wall of the connecting pipe 14, two ends of each second telescopic rod 37 are respectively rotatably connected with the sector plates 36 and the hinge seats 38 at the inner wall of the connecting pipe 14, and an adaptive spring is arranged in the second telescopic rods 37, so that the function of the second telescopic rods 37 and the adaptive spring in the second telescopic rods ensures that the four sector plates 36 flexibly plug the inlet of the connecting pipe 14, namely, when the pressure is too large, the rotation amplitude of the sector plates 36 is larger, the degree of the second telescopic rods 37 is increased, so that the inlet of the connecting pipe 14 is increased, and when the pressure is smaller, the degree of the second telescopic rods 37 is compressed is reduced, so that the inlet of the connecting pipe 14 is reduced, and the slurry discharging speed is adjusted slowly.
In this embodiment, after the high-pressure backflow mechanism is triggered, manual reset is needed, although the situation that the pressure of the liquid outlet pipeline is too high belongs to an accidental event, the probability is very small, and therefore the number of times of manual reset is very small.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The constant-pressure grouting device for filling mining of the mine comprises a slurry storage tank for storing slurry, a grouting pump and a liquid inlet pipeline communicated with one port of the grouting pump, wherein an inlet of the liquid inlet pipeline is positioned in the slurry storage tank;
the liquid outlet pipeline is circumferentially provided with a plurality of buffer cavities, and the buffer cavities adaptively shrink or expand according to the pressure in the liquid outlet pipeline.
2. The constant-pressure grouting device for filling mining of mines according to claim 1, wherein a shell is arranged on the liquid outlet pipeline, a high-pressure backflow mechanism is elastically arranged in the shell, a baffle is movably arranged on the inner wall of the liquid outlet pipeline, a clamping plate is arranged on the baffle and communicated with the buffer cavity through a through hole, and the high-pressure backflow mechanism ejects after the baffle is opened by pushing the clamping plate to move when the internal pressure of the liquid outlet pipeline is overlarge.
3. The constant-pressure grouting device for filling mining of mines according to claim 2, wherein the high-pressure backflow mechanism comprises a backflow pipe, one end of the backflow pipe is communicated with the slurry storage tank, a partition plate is connected inside the shell in a sliding mode, a connecting pipe is arranged on the partition plate, a corrugated pipe is arranged between the other end of the backflow pipe and the connecting pipe, and the partition plate is connected with the inner top wall of the shell in an elastic mode.
4. The constant-pressure grouting device for filling mining of mines according to claim 3, wherein the drainage assembly is arranged at the bottom of the connecting pipe and comprises a drainage plate, a fixed shaft is fixedly connected to the bottom end of the connecting pipe, the drainage plate is rotationally connected with the fixed shaft, a torsion spring is arranged between the fixed shaft and the drainage plate, and a limiting assembly for limiting the swing amplitude of the drainage plate is arranged at the bottom of the partition plate.
5. The constant-pressure grouting device for filling mining of mines according to claim 4, wherein the limiting assembly comprises a limiting rod, a vertical rod is fixedly connected to the bottom end of the partition plate, the limiting rod is in sliding connection with the vertical rod, a first limiting part is arranged on the limiting rod, and the first limiting part is in clamping connection with the drainage plate.
6. The constant-pressure grouting device for filling mining of mines according to claim 5, wherein the upright rod is fixedly connected with a first telescopic rod, a second limiting part is arranged on the limiting rod, and the second limiting part is abutted with the end part of the first telescopic rod.
7. The constant pressure grouting device for mine filling exploitation according to claim 5, wherein the drainage plate is fixedly connected with an abutting block, the limiting rod is provided with an abutting part, and the abutting part is located on the movement stroke of the abutting block.
8. The constant pressure grouting device for mine filling exploitation according to claim 5, wherein the upright rod is elastically connected with a wedge block, and the limiting rod is abutted with the wedge block.
9. The constant-pressure grouting device for mine filling exploitation according to claim 5, wherein two limiting blocks are arranged on the limiting rod, limiting grooves matched with the limiting blocks are formed in the vertical rods, and the limiting blocks are in sliding connection with the limiting grooves.
10. The constant pressure grouting device for mine filling exploitation according to claim 4, wherein a blocking block is fixedly connected to the bottom end of the fixed shaft and is located on the movement stroke of the drainage plate.
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| CN202310213471.XA CN116146246B (en) | 2023-03-06 | 2023-03-06 | Constant-pressure grouting device for mining filling of mine |
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| CN202310213471.XA CN116146246B (en) | 2023-03-06 | 2023-03-06 | Constant-pressure grouting device for mining filling of mine |
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| CN116146246B (en) | 2024-03-26 |
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