CN114893209A - Concrete spraying process suitable for underground coal mine - Google Patents
Concrete spraying process suitable for underground coal mine Download PDFInfo
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- CN114893209A CN114893209A CN202210218878.7A CN202210218878A CN114893209A CN 114893209 A CN114893209 A CN 114893209A CN 202210218878 A CN202210218878 A CN 202210218878A CN 114893209 A CN114893209 A CN 114893209A
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- guniting
- mixture
- ton bag
- machine
- coal mine
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- 238000005507 spraying Methods 0.000 title claims abstract description 49
- 239000003245 coal Substances 0.000 title claims abstract description 35
- 239000004567 concrete Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 38
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 239000004576 sand Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000004575 stone Substances 0.000 claims abstract description 21
- 239000004568 cement Substances 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract 2
- 239000007924 injection Substances 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000011378 shotcrete Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000004804 winding Methods 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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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)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the field of coal mine concrete spraying, in particular to a concrete spraying process suitable for an underground coal mine, which comprises the following steps: step A: preparing a guniting mixture: drying sand and stones, and then mixing and stirring the dried sand and the stones with cement and a dry powder accelerator to prepare a guniting mixture; and B: conveying the guniting mixture to the underground; and C: feeding to a pulp shooting machine: hoisting the ton bags to the upper part of the guniting machine by adopting a small hoisting device, opening discharge openings of the ton bags, discharging guniting mixture into a hopper of the guniting machine, and then discharging empty ton bags; step D: and (3) spraying slurry: and starting a guniting machine and a guniting manipulator, conveying the mixture to the guniting manipulator by the guniting manipulator, and starting guniting operation by the guniting manipulator. The invention does not need manual underground stirring, conveying and feeding, reduces the manual participation degree and labor intensity, reduces the number of operating personnel, improves the operation automation degree and ensures the injection quality.
Description
Technical Field
The invention relates to the field of coal mine concrete spraying, in particular to a concrete spraying process suitable for an underground coal mine.
Background
At present, in the concrete spraying and supporting operation under a coal mine, as the transportation links are more and the period is long, and as the sand and stone material contains certain moisture, if the sand and stone material is not used as soon as possible after being stirred with cement, the cement fails, so that the sand and stone material and the cement cannot be uniformly stirred on the ground and then conveyed to the concrete spraying operation site under the coal mine. The sand and stone materials are generally evenly stirred on the ground, then conveyed to the underground of a coal mine and unloaded to the ground. Because the space of the coal mine tunnel is generally narrow, large-scale concrete batching and feeding equipment cannot be used. When the guniting operation is needed, the sand and stone material, the cement and the accelerating agent are manually mixed and then stirred. Such operation mode causes the grit material and cement, accelerating agent ratio can't accurate guarantee because of the unable accurate measurement of grit material on the one hand, and on the other hand adopts manual stirring, and stirring intensity of labour is big, and stirring homogeneity is poor, can lead to that the whitewashing resilience is big, the jet surface quality can't guarantee. The stirred guniting mixture also needs to be manually fed into a hopper of the concrete spraying machine, so that the labor intensity is further increased. The labor intensity of the whole feeding and stirring process is very high, the stirring quality cannot be guaranteed, and the spraying quality is seriously reduced. The device is far from the requirements of realizing mechanical, automatic and intelligent operation in the coal mine industry.
Therefore, the labor intensity of stirring and feeding is reduced, and the automation degree and the stirring uniformity are improved.
Disclosure of Invention
The invention aims to solve the problems of high labor intensity and low automation degree of underground concrete spraying operation of a coal mine, and provides the underground concrete spraying process suitable for the coal mine, which does not need manual underground stirring, conveying and feeding, reduces the manual participation degree and labor intensity, reduces the number of operating personnel, improves the automation degree of operation, and ensures the spraying quality.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a concrete spraying process suitable for underground coal mines comprises the following steps:
step A: building a stirring station on the ground above the well, and manufacturing a guniting mixture: drying sand and stones, and then mixing and stirring the dried sand and the stones with cement and a dry powder accelerator to prepare a guniting mixture;
and B: and (3) conveying the guniting mixture to the underground: loading the guniting mixture into a ton bag, transferring the ton bag after loading to a wellhead, and then transporting to the underground of a coal mine;
and C: feeding to a pulp shooting machine: hoisting the ton bags to the upper part of the guniting machine by adopting a small hoisting device, opening discharge openings of the ton bags, discharging guniting mixture into a hopper of the guniting machine, and then discharging empty ton bags;
step D: and (3) spraying slurry: the guniting machine is connected with the guniting manipulator through the guniting conveying pipeline, the guniting machine and the guniting manipulator are opened, the guniting machine conveys the mixed materials to the guniting manipulator, and guniting operation is started by the guniting manipulator.
In a further preferred embodiment, when the guniting operation is performed in the step D, the step C is repeated so that the guniting mix is held in the hopper of the guniting machine until the guniting operation is completed.
In a further preferred scheme, in the step a, sand and stones are dried by adopting a drying device, the drying device is a rotary drum dryer or a rotary dryer, a feeding system is arranged at the front end of the drying device, and a dust removal system, a screening system, a storage system and an electrical appliance control system are arranged at the rear end of the drying device; and (3) stirring by adopting a stirring system, wherein the stirring system is used for weighing and lifting the sand, the pebble, the cement and the accelerating agent and stirring a guniting mixture formed by the sand, the pebble, the cement and the accelerating agent.
In a further preferred scheme, the ton bag is of a double-layer structure, the outer layer of the ton bag is a bearing layer formed by woven bags or non-woven bags, and the inner layer of the ton bag is provided with a moisture-proof layer; or the ton bag is of a single-layer bag-shaped structure with a moisture-proof function; the ton bag upper end sets up the charging opening, both sides set up and lift by crane the couple, the lower extreme is provided with the discharge opening.
In a further preferred scheme, a ton bag storage area and a stacking system are arranged on the ground above the well, the ton bag storage area stores ton bags filled with gunite mixture and not conveyed, and the stacking system is used for stacking the ton bags in the ton bag storage area.
In a further preferred scheme, in the step B, a moving trolley is adopted to bear the ton bags, and the moving trolley is sent to the underground; and a walking track matched with the movable trolley is arranged in the underground roadway.
In a further preferred scheme, in the step C, hoisting the ton bag to the position above the pulp shooting machine by using a small hoisting device, wherein the small hoisting device is a hoisting mechanism with a slide rail arranged at the upper part of a roadway or a small gantry hoisting mechanism with the slide rail arranged on the ground of the roadway, and one small hoisting device is arranged in the roadway every 100-700 m; in the step C, the moving trolley for loading the ton bags moves to the side of the spraying machine, the hoisting mechanism moves to the position above the spraying machine along the sliding rail, and the hoisting mechanism hoists the ton bags and conveys the ton bags to the position above a hopper of the spraying machine.
In a further preferred scheme, the walking rails and the sliding rails are made of i-shaped steel or channel steel, the walking rails are arranged in a crossed mode along the length direction and the width direction of the roadway, and the sliding rails are arranged in a crossed mode along the length direction and the width direction of the roadway.
In another preferred scheme, the small lifting device comprises a crawler-type traveling chassis, a support column, a sliding guide rail, a telescopic mechanism and a lifting mechanism.
In a further preferable scheme, the spraying and conveying distance of the spraying machine is 30-700 m; the guniting conveying pipeline is a rubber hose, a plurality of steel wires are arranged in the rubber hose, the steel wires are wound or woven to be arranged in the rubber hose in a latticed manner, a wear-resistant layer is arranged on the inner side of the rubber hose, and the wear-resistant layer is made of UPE materials.
In a further preferred scheme, a crawler chassis is arranged below the guniting manipulator, and the guniting manipulator adopts a remote control or remote control system.
Through the technical scheme, the invention has the beneficial effects that:
the invention dries sand and stone on the ground through drying equipment, then mixes the dried sand and stone with cement and dry powder accelerator according to a proportion, and then stirs the mixture through a stirring system to prepare a guniting mixture. And adopt the mixing system, can accomplish that each raw materials ratio is accurate, the stirring is even, can effectively reduce to spray the resilience, improves and sprays face intensity to do not need manual stirring in the pit in the colliery, greatly reduced manual work intensity of labour. After the ton bag reaches the underground of the coal mine, the ton bag is lifted to the upper part of a remote slurry spraying machine through a small lifting device during slurry spraying, so that slurry spraying operation is realized, and manual feeding is not needed. And a long-distance guniting manipulator is adopted at the nozzle to replace manual operation for maintaining the nozzle. The whole process from feeding to guniting only needs manual assistance, the degree of mechanization and automation is high, the number of operators is reduced, the labor intensity is extremely low, and the spraying quality is ensured.
Drawings
FIG. 1 is a schematic flow chart of a concrete spraying process suitable for an underground coal mine according to the invention;
FIG. 2 is a schematic structural diagram of a concrete spraying process applicable to an underground coal mine according to the present invention;
FIG. 3 is a schematic structural diagram of the small hoisting device for hoisting ton bags onto the shotcrete machine;
fig. 4 is a schematic structural view of a small hoisting device according to a second embodiment of the present invention.
The reference numbers in the drawings are as follows: 1 is drying equipment, 2 is ton bag, 201 is the discharge opening, 202 is for lifting by crane the couple, 3 is small-size hoisting accessory, 4 is the patching machine, 5 is the patching machine manipulator, 6 is the travelling car, 8 is mixing system, 301 is crawler-type walking chassis, 302 is the pillar, 303 is sliding guide, 304 is hoisting machine constructs.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
in the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "lateral", "vertical", etc. indicate orientations or positional relationships based on those shown in fig. 2 only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example one
As shown in fig. 1 to 3, the embodiment provides a concrete spraying process suitable for an underground coal mine, which includes the following steps:
step A: building a stirring station on the ground above the well, and manufacturing a guniting mixture: drying sand and stones, and then mixing and stirring the dried sand and the stones with cement and a dry powder accelerator to prepare a guniting mixture;
and B: transporting the guniting mixture to the underground: the guniting mixture is filled into a ton bag 2, the ton bag 2 after being filled is transported to a wellhead, and then the ton bag is transported to the underground of a coal mine; the ground above the well is also provided with a ton bag storage area and a stacking system, the storage area stores ton bags 2 which are filled with guniting mixture and are not conveyed, the stacking system is matched with the ton bag storage area, the stacking system is used for stacking the ton bags in the ton bag storage area, the occupied area of the ton bags is saved, and the movable trolley 6 can also take goods from the ton bag storage area and convey the goods to the underground of the coal mine;
and C: feeding to a pulp shooting machine 4: a guniting machine 4, a guniting manipulator 5 and a small hoisting device 3 are distributed in a coal mine underground roadway, the ton bag 2 is hoisted to the position above the guniting machine 4 by the small hoisting device 3, a discharge opening of the ton bag 2 is opened, guniting mixture is discharged into a hopper of the guniting machine 4, and then the empty ton bag 2 is discharged;
step D: and (3) spraying slurry: the patching machine 4 is connected with a patching manipulator 5 through a patching conveying pipeline, the patching machine 4 and the patching manipulator 5 are opened, the patching machine 4 conveys the mixture to the patching manipulator 5, and the patching operation is started by the patching manipulator 5.
Further, when the guniting operation is carried out in the step D, the step C is repeated, and the hoisting and unloading processes of the ton bag 2 are repeated, so that guniting mixture is kept in a hopper of the guniting machine 4 until the guniting operation is finished.
In the step a, the drying device 1 is used for drying sand and stones, the drying device 1 is a rotary drum dryer or a rotary dryer, the front end of the drying device 1 is provided with a feeding system, and the feeding system conveys materials to the drying device; the rear end of the drying equipment 1 is provided with a dust removal system, a screening system, a storage system and an electrical appliance control system, the dust removal system removes dust in the drying process, and the screening system is used for screening materials and screening off unqualified materials and impurities. Because of sand, stone through drying in advance, can deposit the long time with the whitewashing mixture that forms after cement, dry powder accelerator stirring, transport the colliery in the pit after, can not cause the cement inefficacy.
And stirring by adopting a stirring system 8, wherein the stirring system 8 comprises the weighing and lifting processes of the sand, the pebble, the cement and the accelerating agent and the stirring process of the guniting mixture formed by the sand, the pebble, the cement and the accelerating agent. The mixing system 8 is accurate in proportioning and uniform in stirring of the raw materials, spraying resilience can be effectively reduced, the strength of a spraying surface is improved, manual stirring is not needed in a coal mine, and labor intensity of manual operation is greatly reduced.
Further, ton bag 2 is bilayer structure, and ton bag 2 skin is the bearing layer that braided bag or non-woven fabrics bag formed, and ton bag 2 inlayer is provided with the dampproof course. In other embodiments, the ton bag 2 may be a single-layer bag structure having a moisture-proof function. Ton bag 2 can pack into the volume and be 0.1~0.5m, and loading mass is 160~800kg, and ton bag 2 upper end sets up charging opening, both sides set up and lift by crane couple 202, the lower extreme is provided with discharge opening 201, and charging opening and discharge opening 201 adopt the ligature form to seal, can seal fast and unseal, convenient to use easy operation. When guniting mixture is filled into the ton bag 2, the discharge opening 201 of the ton bag 2 is bound and closed, and the charging opening is opened so as to facilitate charging; after the small hoisting device 3 hoists the ton bag 2 to the shotcrete machine 4, the discharge opening can be unbundled so as to load guniting mixture into the hopper of the shotcrete machine 4.
Further, in the step B, the movable trolley 6 is adopted to bear the ton bags 2, and the movable trolley 6 is conveyed from the well to the underground; a traveling track matched with the movable trolley is arranged in the underground roadway, when the movable trolley bears the ton bags 2 to the underground, the movable trolley travels on the traveling track, and the ton bags 2 are conveyed to the position beside the pulp shooting machine 4. In this embodiment, the traveling bogie 6 is a mine car.
Further, the small hoisting device 3 is a hoisting mechanism with slide rails arranged at the upper part of the roadway, or a small gantry hoisting mechanism with slide rails arranged on the ground of the roadway, and one small hoisting device 3 is arranged in every 100-700 m of the roadway, in the embodiment, the small hoisting device 3 is a hoisting mechanism with slide rails arranged at the upper part of the roadway; in the step C, the movable trolley 6 for loading the ton bags 2 moves to the side of the pulp shooting machine 4, the hoisting mechanism moves to the position above the pulp shooting machine 4 along the slide rail, the hoisting mechanism hoists the ton bags 2 to enable the ton bags 2 to be separated from the movable trolley, and then the movable trolley moves to convey the ton bags 2 to the position above a hopper of the pulp shooting machine 4.
The traveling rails and the sliding rails are made of I-shaped steel or channel steel, the traveling rails are arranged in a crossed mode in the length direction and the width direction of the roadway, and the sliding rails are arranged in a crossed mode in the length direction and the width direction of the roadway. In this embodiment, the walking track and the slide rail are both double tracks formed by two zigzag i-shaped steels or channel steels. In other embodiments, the slide rail of the small hoisting device 3 is arranged at the upper part of the roadway, a single piece of zigzag i-steel or channel steel can also be adopted as the slide rail, and the small hoisting device 3 can slide on the single slide rail to hoist and move the ton bag 2.
The guniting conveying distance of the guniting machine 4 is 30-700 m, so that long-distance guniting operation can be realized; the pipeline of whitewashing pipeline for connecting whitewashing machine 4 and whitewashing manipulator 5 can adopt ordinary pipeline, in this embodiment, in order to reduce whitewashing mixture to the wearing and tearing speed of pipeline, improve pipeline's life, this embodiment whitewashing pipeline is rubber hose, is provided with many steel wires in the rubber hose, and the steel wire is winding form or establishment and is latticed setting in rubber hose, and rubber hose's inboard is provided with the wearing layer, the wearing layer is the UPE material.
Foretell, 5 below of whitewashing manipulator is provided with crawler chassis, and whitewashing manipulator 5 is portable, and whitewashing manipulator 5 replaces artifical clasping the shower nozzle and realizes the whitewashing operation, and whitewashing manipulator 5 adopts remote control or remote control system.
Example two
This embodiment is substantially the same as the above embodiments, and the same parts are not described again, except that:
as shown in fig. 4, the small hoisting device 3 of the present embodiment includes a crawler-type traveling chassis 301, a pillar 302, a sliding guide 303, a telescopic mechanism and a hoisting mechanism 304, the pillar 302 is disposed on the crawler-type traveling chassis 301, the sliding guide 303 is disposed on the pillar 302, the sliding guide includes a fixing portion and a sliding portion, the fixing portion is disposed on the pillar 302, the sliding portion is disposed inside the fixing portion and slidably disposed with the fixing portion, the telescopic mechanism is disposed below the fixing portion, the hoisting mechanism 304 is disposed at an end of the sliding portion, and the telescopic mechanism is connected with the sliding portion. The small-size hoisting accessory 3 of this embodiment need not adopt the slide rail cooperation, and accessible crawler-type walking chassis 301 removes in the tunnel, and flexible drive sliding part through telescopic machanism slides to drive hoisting machine 304 and remove, realize removing the hoist and mount of ton bag, hoist and mount 4 tops of patching machine with ton bag then.
The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles described in the present invention should be included in the claims of the present invention.
Claims (11)
1. A concrete spraying process suitable for underground coal mines is characterized by comprising the following steps:
step A: building a stirring station on the ground above the well, and manufacturing a guniting mixture: drying sand and stones, and then mixing and stirring the dried sand and the stones with cement and a dry powder accelerator to prepare a guniting mixture;
and B: transporting the guniting mixture to the underground: the guniting mixture is filled into a ton bag (2), the ton bag (2) after being filled is transported to a wellhead, and then the ton bag is transported to the underground of a coal mine;
and C: feeding to a pulp shooting machine (4): hoisting the ton bag (2) to the position above the slurry spraying machine (4) by using a small hoisting device (3), opening a discharge opening of the ton bag (2), discharging the slurry spraying mixture into a hopper of the slurry spraying machine (4), and then discharging the empty ton bag (2);
step D: and (3) spraying slurry: the guniting machine (4) is connected with the guniting manipulator (5) through a guniting conveying pipeline, the guniting machine (4) and the guniting manipulator (5) are started, the guniting machine (4) conveys the mixture to the guniting manipulator (5), and guniting operation is started through the guniting manipulator (5).
2. The concrete spraying process applicable to the underground coal mine according to the claim 1, wherein when the spraying operation is carried out in the step D, the step C is repeated, so that the spraying mixture is kept in the hopper of the spraying machine (4) until the spraying operation is finished.
3. The concrete spraying process suitable for the underground coal mine according to claim 1, wherein in the step A, sand and stones are dried by adopting a drying device (1), the drying device (1) is a rotary drum dryer or a rotary dryer, a feeding system is arranged at the front end of the drying device, and a dust removal system, a screening system, a storage system and an electrical appliance control system are arranged at the rear end of the drying device; and a stirring system (8) is adopted for stirring, and the stirring system (8) is used for weighing and lifting the sand, the stones, the cement and the accelerating agent and stirring the guniting mixture formed by the sand, the stones, the cement and the accelerating agent.
4. The concrete spraying process suitable for the underground coal mine according to claim 1, wherein the ton bag (2) is of a double-layer structure, the outer layer of the ton bag (2) is a bearing layer formed by woven bags or non-woven bags, and the inner layer of the ton bag (2) is provided with a moisture-proof layer; or the ton bag (2) is a single-layer bag-shaped structure with a damp-proof function; the upper end of the ton bag (2) is provided with a charging opening, the two sides of the ton bag are provided with hoisting hooks (202), and the lower end of the ton bag is provided with a discharging opening (201).
5. The concrete injection process applicable to the underground coal mine is characterized in that a ton bag storage area and a stacking system are arranged on the ground above the mine, the ton bag storage area stores ton bags (2) which are filled with guniting mixture and are not conveyed, and the stacking system is used for stacking the ton bags in the ton bag storage area.
6. The concrete spraying process applicable to the underground coal mine according to the claim 1, characterized in that in the step B, a mobile trolley (6) is adopted to carry the ton bag (2), and the mobile trolley (6) is sent to the underground; a walking track matched with the movable trolley (6) is arranged in the underground roadway.
7. The concrete spraying process suitable for the underground coal mine according to the claim 6, wherein in the step C, the small hoisting device (3) is a hoisting mechanism with a slide rail arranged at the upper part of a roadway or a small gantry hoisting mechanism with a slide rail arranged on the ground of the roadway, and one small hoisting device (3) is arranged in the roadway every 100-700 m; in the step C, the movable trolley (6) loading the ton bags (2) moves to the side of the pulp shooting machine (4), the hoisting mechanism moves to the position above the pulp shooting machine (4) along the sliding rail, and the hoisting mechanism hoists the ton bags (2) and conveys the ton bags (2) to the position above a hopper of the pulp shooting machine (4).
8. The concrete spraying process suitable for the underground coal mine according to claim 7, wherein the walking rails and the sliding rails are I-shaped steel or channel steel, the walking rails are arranged in a crossed manner along the length direction and the width direction of a roadway, and the sliding rails are arranged in a crossed manner along the length direction and the width direction of the roadway.
9. The concrete spraying process applicable to underground coal mines according to any of claims 1 or 6, characterized in that the small hoisting device (3) comprises a crawler-type walking chassis (301), a pillar (302), a sliding guide rail (303), a telescopic mechanism and a hoisting mechanism (304).
10. The concrete spraying process suitable for the underground coal mine according to claim 1, wherein the guniting conveying distance of the guniting machine (4) is 30-700 m; the guniting conveying pipeline is a rubber hose, a plurality of steel wires are arranged in the rubber hose, the steel wires are wound or woven to be arranged in the rubber hose in a latticed manner, a wear-resistant layer is arranged on the inner side of the rubber hose, and the wear-resistant layer is made of UPE materials.
11. The concrete spraying process suitable for the underground coal mine according to the claim 1, wherein a crawler chassis is arranged below the guniting manipulator (5), and the guniting manipulator (5) adopts a remote control or remote control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218878.7A CN114893209A (en) | 2022-03-08 | 2022-03-08 | Concrete spraying process suitable for underground coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218878.7A CN114893209A (en) | 2022-03-08 | 2022-03-08 | Concrete spraying process suitable for underground coal mine |
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| CN114893209A true CN114893209A (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210218878.7A Pending CN114893209A (en) | 2022-03-08 | 2022-03-08 | Concrete spraying process suitable for underground coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521095A (en) * | 2022-09-19 | 2022-12-27 | 安徽金安矿业有限公司 | Rapid preparation method of concrete for underground guniting support of metal mine |
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2022
- 2022-03-08 CN CN202210218878.7A patent/CN114893209A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521095A (en) * | 2022-09-19 | 2022-12-27 | 安徽金安矿业有限公司 | Rapid preparation method of concrete for underground guniting support of metal mine |
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