CN113090323A - Double-half bowl type air cushion type mining material buffering device and using method thereof - Google Patents
Double-half bowl type air cushion type mining material buffering device and using method thereof Download PDFInfo
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- CN113090323A CN113090323A CN202110190017.8A CN202110190017A CN113090323A CN 113090323 A CN113090323 A CN 113090323A CN 202110190017 A CN202110190017 A CN 202110190017A CN 113090323 A CN113090323 A CN 113090323A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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Abstract
The invention discloses a double-half bowl type air cushion type material buffer device for mine and a using method thereof, the double-half bowl type air cushion type material buffer device comprises a primary buffer unit, a secondary buffer unit, a material receiving chute and a base fixing device, wherein the primary buffer unit comprises a primary material containing device, a primary pressure-bearing sleeve shaft, a primary basic main shaft, a primary sliding guide rod and a primary sliding rod sleeve, the secondary buffer unit comprises a secondary material containing device, a secondary pressure-bearing sleeve shaft, a secondary basic main shaft, a secondary sliding guide rod and a secondary sliding rod sleeve, the primary material containing device and the secondary material containing device are half bowl type mechanisms with bottom supports, the primary material containing device and the primary pressure-bearing sleeve shaft are welded into a whole, the primary pressure-bearing sleeve shaft is nested on the secondary basic main shaft to form a closed primary pressure-bearing cavity, the secondary material containing device and the secondary pressure-bearing sleeve shaft are welded into a whole, the double-half bowl type air cushion, the safe feeding of the solid materials is realized.
Description
Technical Field
The invention relates to the technical field of mining material buffering devices, in particular to a double-half bowl type air cushion type mining material buffering device and a using method thereof, which are particularly suitable for buffering filling materials put into a vertical pipeline from the ground to the underground on a coal mine.
Background
At present, the coal mine solid filling mining technology realizes the large-scale mining of the 'three lower' pressed coal, effectively improves the mining rate of the 'three lower' pressed coal of a mine, and largely treats a large amount of solid wastes such as gangue and the like accumulated on the ground for a long time. In a solid filling coal mining feeding system, solid materials such as common gangue are fed to a well bottom from a vertical position which is dozens of meters to hundreds of meters away from the well bottom, when the materials reach the well bottom, the common speed exceeds more than 50m/s, the materials such as the gangue with high speed have great impact destructive power, if the materials are not buffered, the materials can greatly damage a storage bin at the well bottom when reaching the well bottom, and the service life of the storage bin is shortened.
Therefore, in order to solve the problem of feeding buffering in solid filling coal mining, the invention provides the double-half bowl type air cushion type material buffering device for the mine, which can effectively buffer solid filling materials such as gangue and the like and reduce the damage to the storage bin.
Disclosure of Invention
The invention aims to provide a double-half bowl type air cushion type material buffering device for a mine and a using method thereof so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a double-half bowl type air cushion type material buffer device for mines comprises a primary buffer unit, a secondary buffer unit, a material receiving chute and a base fixing device;
the primary buffer unit comprises a primary material containing device, a primary pressure bearing sleeve shaft, a primary basic main shaft, a primary sliding guide rod and a primary sliding rod sleeve;
the secondary buffer unit comprises a secondary material containing device, a secondary pressure bearing sleeve shaft, a secondary basic main shaft, a secondary sliding guide rod and a secondary sliding rod sleeve;
the material receiving chute is obliquely arranged between the primary buffer unit and the secondary buffer unit and comprises a chute slide carriage and support columns, and the support columns are welded on the lower surface of the chute slide carriage;
the base fixing device comprises a first-stage base and a second-stage base, wherein the first-stage base and the second-stage base are both of semicircular steel plate structures, the edge positions of the first-stage base and the second-stage base are respectively and correspondingly provided with a first-stage sliding guide rod unthreaded hole matched with a first-stage sliding guide rod and a second-stage sliding guide rod unthreaded hole matched with a second-stage sliding guide rod, and the first-stage base and the second-stage base are respectively and correspondingly provided with supporting column unthreaded holes which are in one-to-one correspondence with and are matched with supporting columns;
the primary material containing device is a semi-bowl-shaped mechanism with a bottom support, the lower part of the primary material containing device is welded with a primary pressure-bearing sleeve shaft into a whole, the primary pressure-bearing sleeve shaft is of a cylindrical sleeve-shaped structure, a primary sliding rod sleeve connected with a primary sliding guide rod in a sliding manner is fixed on the outer side wall of the primary material containing device, the primary sliding guide rod is vertically inserted into a primary sliding guide rod unthreaded hole, the primary basic main shaft is of a cylindrical columnar structure, the outer diameter of the primary basic main shaft is matched with the inner diameter of the primary pressure-bearing sleeve shaft, the primary pressure-bearing sleeve shaft is embedded on the primary basic main shaft and forms a sealed primary pressure-bearing cavity, the bottom end of the primary basic main shaft is welded with a primary base into a whole, a primary middle gas guide pipeline communicated with the primary pressure-bearing cavity is arranged at the central position of the primary basic main shaft along the axial direction of the primary basic main shaft, a primary gas injection pipeline communicated with the primary, a primary air charging and discharging switch is arranged on the primary air injection pipeline;
the secondary material containing device is a semi-bowl-shaped mechanism with a bottom support, the lower part of the secondary material containing device is welded with a secondary pressure-bearing sleeve shaft into a whole, the secondary pressure-bearing sleeve shaft is of a cylindrical sleeve-shaped structure, a secondary sliding rod sleeve connected with a secondary sliding guide rod in a sliding manner is fixed on the outer side wall of the secondary material containing device, the secondary sliding guide rod is vertically inserted into a light hole of the secondary sliding guide rod, the secondary basic main shaft is of a cylindrical columnar structure, the outer diameter of the secondary basic main shaft is matched with the inner diameter of the secondary pressure-bearing sleeve shaft, the secondary pressure-bearing sleeve shaft is embedded on the secondary basic main shaft and forms a closed secondary pressure-bearing cavity, the bottom end of the secondary basic main shaft is welded with a secondary base into a whole, a secondary middle gas guide pipeline communicated with the secondary pressure-bearing cavity is arranged at the central position of the secondary basic main shaft along the axial direction of the secondary basic main shaft, and a secondary gas injection pipeline, a secondary inflation and deflation switch is arranged on the secondary gas injection pipeline;
the half bowl-shaped mechanism of the primary material containing device is vertically higher than the half bowl-shaped mechanism of the secondary material containing device by 300-500mm, the projections of the half bowl-shaped mechanism of the primary material containing device and the half bowl-shaped mechanism of the secondary material containing device in the horizontal direction are overlapped, and the overlapped area is 1/5-1/4 of the area of the primary material containing device.
Furthermore, at least two annular grooves I which are arranged in parallel and have a semicircular structure are formed in the edge position of the lower part of the inner surface of the primary pressure-bearing sleeve shaft, and primary sealing ring strips with circular interfaces are installed in the annular grooves I.
Furthermore, at least two annular grooves II which are arranged in parallel and have a semicircular structure are formed in the edge position of the lower part of the inner surface of the secondary pressure-bearing sleeve shaft, and secondary sealing ring strips with circular interfaces are arranged in the annular grooves II.
Further, the installation billet has all been welded at the both sides edge of one-level base and second grade base, and the installation horizontal unthreaded hole has all been seted up to the installation billet, the position one-to-one of the installation horizontal unthreaded hole on the one-level base and the installation horizontal unthreaded hole on the second grade base, and one-level base and second grade base connect as an organic wholely through the cooperation of installation horizontal unthreaded hole, base fastening bolt and base fastening nut.
Further, the aperture of the horizontal light hole is 10-15 mm.
Furthermore, the length and the width of the half bowl-shaped mechanism of the primary material containing device are respectively 20-60mm smaller than the length and the width of the half bowl-shaped mechanism of the secondary material containing device.
Furthermore, the included angle between the chute slide carriage and the upper surface of the base fixing device is 15-45 degrees.
The use method of the double-half bowl type air cushion type mining material buffer device comprises the following steps:
step one, respectively opening a primary air filling and discharging switch and a secondary air filling and discharging switch, respectively injecting a certain amount of air into a primary pressure-bearing cavity and the secondary air filling and discharging switch through a primary air injection pipeline and a secondary air injection pipeline, and then closing the primary air filling and discharging switch and the secondary air filling and discharging switch;
secondly, the whole device is arranged below a feeding pipe, and an upper port of a primary material containing device is ensured to be aligned to a lower port of the feeding pipe, so that the filling material particles in the feeding pipe firstly enter a primary buffering unit to realize primary buffering, then enter a secondary buffering unit to realize secondary buffering, and the filling material particles subjected to secondary buffering enter a chute slide;
and step three, stopping the carrying devices such as the mine cars at the lower end of the chute slide carriage, filling material particles entering the chute slide carriage, sliding the filling material particles along the chute slide carriage into the carrying devices such as the mine cars for loading.
Compared with the prior art, the invention has the beneficial effects that:
(1) when the filling material particles of the feeding pipe fall into the primary material containing device, under the action of falling impact of the material, the kinetic energy of the filling material particles is absorbed by gas compression in the primary pressure-bearing cavity in the primary buffer unit to realize primary buffering, then the filling material particles enter the secondary material containing device, and under the action of impact of the filling material particles, the kinetic energy of the filling material particles is absorbed by gas compression in the secondary pressure-bearing cavity in the secondary buffer unit to realize secondary buffering, then the filling material particles enter a chute slide carriage of the material receiving chute and then slide into carrying devices such as mine cars, so that the impact of the material on a shaft bottom storage bin can be greatly reduced, and the safe feeding of the solid material is realized.
(2) One-level flourishing material device and second grade flourishing material device can reset under compressed gas's elastic action, get into next and connect the material buffering circulation, and this process goes on along with the circulation that the blanking is repeated to the realization constantly carries out multistage buffering to the filling material granule of throwing out in the feeding pipe, whole device convenient to use, and safe high efficiency, small investment have good practicality in the well worker fills the exploitation.
In conclusion, when the invention is applied to the comprehensive mechanized solid material filling coal mining technology, when the ground material is thrown underground through the feeding pipeline, the multistage buffering effect is realized through the first-stage buffering unit and the second-stage buffering unit, so that the impact of the material on a shaft bottom storage bin can be greatly reduced, and the safe throwing of the solid material is realized. The whole device is convenient to use, safe, efficient, low in investment and good in practicability in underground filling mining.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a side view of the structure of the present invention;
FIG. 4 is a structural elevation view of the present invention;
FIG. 5 is an exploded view of the structure of the present invention;
FIG. 6 is a cross-sectional view of the structure of the present invention;
FIG. 7 is a cross-sectional view taken along line E-E of FIG. 6;
FIG. 8 is a cross-sectional view F-F of FIG. 6;
fig. 9 is a schematic diagram of the position relationship between the present invention and a feeding pipe.
In the figure: 1. a primary material containing device; 2. a secondary material containing device; 3. a primary pressure-bearing sleeve shaft; 4. a secondary pressure-bearing sleeve shaft; 5. a primary foundation main shaft; 6. a secondary basic main shaft; 7. a primary base; 8. a secondary base; 9. a base fastening bolt; 10. a base fastening nut; 11. a primary sliding guide bar; 12. a secondary sliding guide rod; 13. a primary sliding rod sleeve; 14. a secondary sliding rod sleeve; 15. chute slide carriage; 16. a primary gas injection pipeline; 17. a first-stage air charging and discharging switch; 18. a first-stage sliding guide rod unthreaded hole; 19. a support post light hole; 20. a secondary sealing ring strip; 21. a primary sealing ring strip; 22. a secondary middle gas guide pipeline; 23. a first-stage middle gas guide pipeline; 24. a secondary pressure-bearing cavity; 25. a primary pressure-bearing cavity; 26. a secondary gas injection pipeline; 27. a secondary air charging and discharging switch; 28. a support pillar; 29. a feeding pipe; 30. filling material particles; 31. and a secondary sliding guide rod unthreaded hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, an embodiment of the present invention is shown: a double-half bowl type air cushion type material buffer device for mines comprises a primary buffer unit, a secondary buffer unit, a material receiving chute and a base fixing device;
the primary buffer unit comprises a primary material containing device 1, a primary pressure-bearing sleeve shaft 3, a primary basic main shaft 5, a primary sliding guide rod 11 and a primary sliding rod sleeve 13;
the secondary buffer unit comprises a secondary material containing device 2, a secondary pressure-bearing sleeve shaft 4, a secondary basic main shaft 6, a secondary sliding guide rod 12 and a secondary sliding rod sleeve 14;
the material receiving chute is obliquely arranged between the primary buffer unit and the secondary buffer unit and comprises a chute slide carriage 15 and supporting columns 28, and the supporting columns 28 are welded on the lower surface of the chute slide carriage 15;
the base fixing device comprises a first-stage base 7 and a second-stage base 8, the first-stage base 7 and the second-stage base 8 are both of semicircular steel plate structures, the edge positions of the first-stage base 7 and the second-stage base 8 are respectively and correspondingly provided with a first-stage sliding guide rod unthreaded hole 18 matched with a first-stage sliding guide rod 11 and a second-stage sliding guide rod unthreaded hole 31 matched with a second-stage sliding guide rod 12, and the first-stage base 7 and the second-stage base 8 are respectively and correspondingly provided with supporting column unthreaded holes 19 which are in one-to-one correspondence with supporting columns 28 and are matched with the supporting columns;
the primary material containing device 1 is a semi-bowl-shaped mechanism with a bottom support, the lower part of the primary material containing device 1 is welded with a primary pressure-bearing sleeve shaft 3 into a whole, the primary pressure-bearing sleeve shaft 3 is of a cylindrical sleeve-shaped structure, a primary sliding rod sleeve 13 which is in sliding connection with a primary sliding guide rod 11 is fixed on the outer side wall of the primary material containing device 1, the primary sliding guide rod 11 is vertically inserted in a primary sliding guide rod unthreaded hole 18, the primary basic main shaft 5 is of a cylindrical columnar structure, the outer diameter of the primary basic main shaft 5 is matched with the inner diameter of the primary pressure-bearing sleeve shaft 3, the primary pressure-bearing sleeve shaft 3 is nested on the primary basic main shaft 5 and forms a sealed primary pressure-bearing cavity 25, the bottom end of the primary basic main shaft 5 is welded with a primary base 7 into a whole, and a primary middle gas guide pipeline 23 communicated with the primary pressure-bearing cavity 25 is arranged at the central position of the primary basic main shaft, the side wall of the bottom end of the primary basic main shaft 5 is connected with a primary air injection pipeline 16 communicated with a primary middle air guide pipeline 23, and a primary air charging and discharging switch 17 is arranged on the primary air injection pipeline 16;
the secondary material containing device 2 is a semi-bowl-shaped mechanism with a bottom support, the lower part of the secondary material containing device 2 is welded with a secondary pressure-bearing sleeve shaft 4 into a whole, the secondary pressure-bearing sleeve shaft 4 is of a cylindrical sleeve-shaped structure, a secondary sliding rod sleeve 14 which is connected with a secondary sliding guide rod 12 in a sliding manner is fixed on the outer side wall of the secondary material containing device 2, the secondary sliding guide rod 12 is vertically inserted into a secondary sliding guide rod unthreaded hole 31, the secondary basic main shaft 6 is of a cylindrical columnar structure, the outer diameter of the secondary basic main shaft 6 is matched with the inner diameter of the secondary pressure-bearing sleeve shaft 4, the secondary pressure-bearing sleeve shaft 4 is nested on the secondary basic main shaft 6 and forms a closed secondary pressure-bearing cavity 24, the bottom end of the secondary basic main shaft 6 is welded with a secondary base 8 into a whole, and a secondary middle gas guide pipeline 22 communicated with the secondary pressure-bearing cavity 24 is arranged at the central position of the secondary basic, the side wall of the bottom end of the secondary basic main shaft 6 is connected with a secondary air injection pipeline 26 communicated with the secondary middle air guide pipeline 22, and a secondary air charging and discharging switch 27 is arranged on the secondary air injection pipeline 26;
the half bowl-shaped mechanism of the primary material containing device 1 is vertically higher than the half bowl-shaped mechanism of the secondary material containing device 2 by 300-500mm, the projections of the half bowl-shaped mechanism of the primary material containing device 1 and the half bowl-shaped mechanism of the secondary material containing device 2 in the horizontal direction are overlapped, and the overlapped area is 1/5-1/4 of the area of the primary material containing device 1.
In this embodiment, at least two annular grooves of a semicircular structure arranged in parallel are formed at the edge position of the lower part of the inner surface of the primary pressure-bearing sleeve shaft 3, and primary sealing ring strips 21 with circular interfaces are installed in the annular grooves.
In this embodiment, at least two annular grooves of a semicircular structure are formed in the edge position of the lower portion of the inner surface of the secondary pressure-bearing sleeve shaft 4, and the secondary sealing ring strips 20 with circular interfaces are installed in the annular grooves.
In this embodiment, the installation billet has all been welded at the both sides edge of one-level base 7 and second grade base 8, and the installation billet has all been seted up installation level unthreaded hole, the position one-to-one of the installation level unthreaded hole on one-level base 7 and the installation level unthreaded hole on the second grade base 8, and one-level base 7 and second grade base 8 are connected as an organic wholely through the cooperation of installation level unthreaded hole, base fastening bolt 9 and base fastening nut 10.
In the embodiment, the aperture of the horizontal light hole is 10-15 mm.
In the embodiment, the length and the width of the half bowl-shaped mechanism of the primary material containing device 1 are respectively 20-60mm smaller than the length and the width of the half bowl-shaped mechanism of the secondary material containing device 2.
In this embodiment, the chute carriage 15 is angled at 15-45 ° to the upper surface of the base fixture.
The use method of the double-half bowl type air cushion type mining material buffer device comprises the following steps:
step one, respectively opening a primary air charging and discharging switch 17 and a secondary air charging and discharging switch 27, respectively injecting a certain amount of air into a primary pressure-bearing cavity 25 and the secondary air charging and discharging switch 27 through a primary air injection pipeline 16 and a secondary air injection pipeline 26, and then closing the primary air charging and discharging switch 17 and the secondary air charging and discharging switch 27;
secondly, the whole device is arranged below a feeding pipe 29, and the upper port of a primary material containing device 1 is ensured to be aligned to the lower port of the feeding pipe 29, so that the filling material particles 30 in the feeding pipe 29 firstly enter a primary buffer unit to realize primary buffer, then enter a secondary buffer unit to realize secondary buffer, and the filling material particles 30 after secondary buffer enter a chute carriage 15;
and step three, stopping the carrying device such as the mine car at the lower end of the chute slide carriage 15, entering the filling material particles 30 in the chute slide carriage 15, sliding down the chute slide carriage 15 into the carrying device such as the mine car for loading.
The working principle is as follows: the filling material particles 30 of the feeding pipe 29 fall into the first-level material containing device 1, under the impact action of falling materials, the gas in the first-level pressure-bearing cavity 25 in the first-level buffer unit compresses and absorbs the kinetic energy of the filling material particles 30 to realize first-level buffering, then the filling material particles 30 enter the second-level material containing device 2, also under the impact action of the filling material particles 30, the gas in the second-level pressure-bearing cavity 24 in the second-level buffer unit compresses and absorbs the kinetic energy of the filling material particles 30 to realize second-level buffering, then the filling material particles 30 enter the chute slide carriage 15 of the receiving chute and then slide into carrying devices such as mine cars, wherein the first-level material containing device 1 and the second-level material containing device 2 can reset under the elastic action of compressed gas to enter the next receiving and buffering cycle, the process is carried out along with the repeated blanking, thereby realizing the continuous multi-level buffering of the filling material particles 30 thrown out from the feeding pipe 29, thereby greatly reducing the impact of the materials on the storage bin at the bottom of the well and realizing the safe throwing of the solid materials.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190017.8A CN113090323B (en) | 2021-02-18 | 2021-02-18 | A double half-bowl air cushion type mining material buffer device and its use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190017.8A CN113090323B (en) | 2021-02-18 | 2021-02-18 | A double half-bowl air cushion type mining material buffer device and its use method |
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| CN113090323A true CN113090323A (en) | 2021-07-09 |
| CN113090323B CN113090323B (en) | 2025-02-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000048252A (en) * | 1998-07-30 | 2000-02-18 | Asahi Chem Ind Co Ltd | Goods storage body for automatic vending machine |
| CN202673355U (en) * | 2012-04-07 | 2013-01-16 | 安徽省矿业机电装备有限责任公司 | Coal mine mining with filling underground feed buffer |
| CN104003215A (en) * | 2014-06-05 | 2014-08-27 | 江苏中矿立兴能源科技有限公司 | Vertical-feeding funnel type buffer device for solid filling mining |
| CN211495545U (en) * | 2019-10-24 | 2020-09-15 | 中煤科工集团上海有限公司 | Chute device for transfer point of belt conveyor |
| CN215369937U (en) * | 2021-02-18 | 2021-12-31 | 新汶矿业集团有限责任公司 | Double-half bowl type air cushion type mining material buffering device |
-
2021
- 2021-02-18 CN CN202110190017.8A patent/CN113090323B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000048252A (en) * | 1998-07-30 | 2000-02-18 | Asahi Chem Ind Co Ltd | Goods storage body for automatic vending machine |
| CN202673355U (en) * | 2012-04-07 | 2013-01-16 | 安徽省矿业机电装备有限责任公司 | Coal mine mining with filling underground feed buffer |
| CN104003215A (en) * | 2014-06-05 | 2014-08-27 | 江苏中矿立兴能源科技有限公司 | Vertical-feeding funnel type buffer device for solid filling mining |
| CN211495545U (en) * | 2019-10-24 | 2020-09-15 | 中煤科工集团上海有限公司 | Chute device for transfer point of belt conveyor |
| CN215369937U (en) * | 2021-02-18 | 2021-12-31 | 新汶矿业集团有限责任公司 | Double-half bowl type air cushion type mining material buffering device |
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