CN214944378U - Novel underground flexible composite net - Google Patents
Novel underground flexible composite net Download PDFInfo
- Publication number
- CN214944378U CN214944378U CN202023078240.3U CN202023078240U CN214944378U CN 214944378 U CN214944378 U CN 214944378U CN 202023078240 U CN202023078240 U CN 202023078240U CN 214944378 U CN214944378 U CN 214944378U
- Authority
- CN
- China
- Prior art keywords
- flexible
- net
- fiber layer
- novel
- friction lug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 229920000728 polyester Polymers 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000005065 mining Methods 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 9
- 239000003245 coal Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000003063 flame retardant Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Laminated Bodies (AREA)
Abstract
Novel flexible compound net in pit, including flexible net, the flexible net outside is provided with compound cloth, and flexible net uses polyester filament material to bind and weaves into the base member, and the both sides of flexible net all are provided with compound cloth, and compound cloth is provided with the friction lug with the contact surface of flexible net, and the material of making an uproar falls in the intussuseption of friction lug, and the friction lug is provided with the wear-resisting fibrous layer outward. An antistatic fiber layer, a conductive fiber layer and an anti-corrosion fiber layer are further arranged between the friction lug and the wear-resistant fiber layer, and the tensile strength of each square meter of the novel underground flexible composite net is 40-800 KN. The flexible nets are arranged in a crossed manner to form a combined surface, and the crossed angle between the flexible nets is 90 degrees.
Description
Technical Field
The utility model relates to an equipment that colliery recovery working face used especially relates to a novel flexible composite net in pit.
Background
The air duct is a main air guide device for local ventilation. According to different materials, there are flexible wind tube made of canvas, artificial leather, plastic and rubber, etc. and metal wind tube made of iron sheet and aluminium sheet. The flexible air duct is light in weight, simple in connection and suspension, but large in ventilation resistance; the metal wind tube has small ventilation resistance but occupies a larger cross-sectional area of the roadway.
The air duct can be divided into rigid and flexible air ducts according to the mechanical properties of the materials.
(1) Rigid air duct
Generally, the iron plate is rolled by an iron plate with the thickness of 2-3 mm. The iron wind tube has the advantages of firmness, durability, long service time and use in various ventilation modes. The defects are high cost, easy corrosion, heavy weight, inconvenient disassembly, assembly and transportation and difficult use in a curved roadway. The use of iron wind cone in coal mine is gradually reduced. In recent years, glass fiber reinforced plastic wind tubes have been produced, which are lighter than iron wind tubes (1/4 which is steel only), have high acid and alkali corrosion resistance and small friction resistance coefficient, but have higher cost than iron wind tubes.
(2) Flexible air duct
Mainly comprises a canvas air duct, an adhesive tape air duct, an artificial leather air duct and the like. The flexible wind tube has the advantages of light weight, easy disassembly, assembly and transportation and few joints. The disadvantages are low strength, easy damage, short service time and can only be used for forced ventilation. When the press-in ventilation is adopted in a coal mine, flexible wind cylinders are adopted.
Along with the increase of fully mechanized excavation working faces, the hybrid ventilation and dust removal technology is widely applied, in order to meet the requirements of draw-out ventilation and fully utilize the advantages of the flexible air duct, the telescopic air duct with the rigid framework is developed and applied, namely, a steel wire ring or a spiral steel wire ring is added in the flexible air duct at a certain distance. The air duct can bear certain negative pressure, can be used for drawing type ventilation, has the characteristic of being telescopic, and is more convenient to use than an iron air duct.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an acid and alkali-resistance, difficult ageing, contact intensity are high, long service life has intensity height, fire-retardant, leads functions such as static, but wide application in the tunnel protects the top, protects group and false top of work, the working face novel flexible bellows net of preventing putting out a fire in pit of work of preventing putting out a fire, in order to realize above-mentioned purpose, the technical scheme of the utility model is that:
novel flexible compound net in pit, including flexible net, the flexible net outside is provided with compound cloth, and flexible net uses polyester filament material to bind and weaves into the base member, and the both sides of flexible net all are provided with compound cloth, and compound cloth is provided with the friction lug with the contact surface of flexible net, and the material of making an uproar falls in the intussuseption of friction lug, and the friction lug is provided with the wear-resisting fibrous layer outward. An antistatic fiber layer, a conductive fiber layer and an anti-corrosion fiber layer are further arranged between the friction lug and the wear-resistant fiber layer, and the tensile strength of each square meter of the novel underground flexible composite net is 40-800 KN. The flexible nets are arranged in a crossed manner to form a combined surface, and the crossed angle between the flexible nets is 90 degrees.
A wind-shield wall covering the whole working face is formed at the side of the goaf behind the frame, so that oxygen supply in the goaf is isolated, and the fire prevention and extinguishing effect is obvious; the gas overflow in the goaf can be prevented. The plugging agent is processed by waste air duct cloth, so that plugging of a goaf is realized, coal dust is reduced, and the field working environment is improved. The mesh has large area, flexibility, lightness and high tensile strength; the process is simple and convenient to operate; the flame retardant antistatic performance is good; frequent network transporting and networking procedures are avoided; the safety is high, and the labor intensity is low; different strengths and specifications can be prefabricated, and the flexibility is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the air duct cloth of the present invention.
1. Compounding cloth; 101. a friction bump; 102. an antistatic fiber layer; 103. a conductive fiber layer; 104. a corrosion resistant fibrous layer; 105. a wear-resistant fiber layer; 2. a flexible web.
Detailed Description
The present invention is further described with reference to the accompanying drawings 1-2:
the convex groove 101 is filled with noise-reducing materials. The convex groove 101 increases the contact surface between the convex groove and the wind in the wind barrel, the noise of the wind speed in the wind barrel is weakened by the silencing and noise reducing material filled in the convex groove, the antistatic fiber layer 102 and the conductive fiber layer 103 are arranged, the static aggregation in the wind barrel can be avoided, the static is eliminated and diffused, the probability of explosion in mine caused by the spark generated by the static is reduced, the wear resistance and the corrosion resistance of the wind barrel cloth 1 in use are improved by the design of the corrosion-resistant fiber layer 104 and the wear-resistant fiber layer 105, and the service life of the wind barrel cloth 1 is prolonged
The coal mine withdrawal working face uses the product during the end mining period of the working face, and achieves good roof control and on-site fire prevention and extinguishing work. When the working face is pushed to a position 15-25 meters away from the coal cutting line, the flexible hanging net is unfolded, the synchronous net-surfing process is adopted for integral laying, a net-surfing device consisting of a manual winch and a fixed pulley is utilized for hanging the net piece integrally at one time, and the circular operation of net placing, frame moving and net picking is carried out after coal cutting. Other advantages are as follows:
1) and a wind cylinder flexible net is laid above the bracket. The wind cylinders are tightly overlapped and tightly attached, a wind-shield wall covering the whole working face is formed on the side of the post-erection goaf when pushing and mining are carried out to the position of a stoping line, oxygen supply in the goaf is isolated, the width of the asphyxia belt is enlarged, and the variation of the asphyxia belt from 75m after the erection to 12m after the erection is known through beam tube sampling analysis.
2) When the artificial roof is used for the layered mining of a thick coal seam, high-modulus and high-strength polyester filaments are bound and woven into a matrix, a layer of flame-retardant and static-conducting coating is coated on the surface of the machine body, and a coal mining machine can be directly reamed and crushed without generating sparks, so that the occurrence of underground fire and gas explosion is reduced.
3) The high-strength composite net for mining use is made of high-modulus and high-strength polyester filament, so that it is lighter than pure metal net and steel-plastic composite net, and is convenient for transportation and construction.
4) The acid-base and various chemical components which are easy to rust metal under the coal mine are numerous, so that the exposed wire netting is easy to rust and corrode, and the high-strength composite net coated with the flame-retardant static-conducting coating on the surface is difficult to rust and age, so that the service life of the composite net is naturally prolonged, and the accident potential and the production cost are obviously reduced.
5 ) is difficult for the fish tail staff of mining high strength composite mesh, is convenient for construct and improves work efficiency.
6) The mining high-strength composite net is firm and soft, light in weight and high in tensile strength, the weight of each square meter of the mining high-strength composite net is only about 1KG, the weight of the same metal net can reach about 32KG, the minimum tensile strength of each square meter reaches 40KN, the maximum tensile strength can reach 800KN , and the strength of the mining high-strength composite net is incomparable with that of other metal nets and the like.
Claims (4)
1. Novel flexible compound net in pit, characterized by, including flexible net (2), flexible net (2) outside is provided with compound cloth (1), flexible net (2) use the polyester filament material to bind and weave into the base member, the both sides of flexible net (2) all are provided with compound cloth (1), compound cloth (1) is provided with friction lug (101) with the contact surface of flexible net (2), the material of making an uproar falls in friction lug (101) intussuseption amortization, friction lug (101) are provided with wear-resisting fibrous layer (105) outward.
2. The novel downhole flexible composite web according to claim 1, wherein an antistatic fiber layer (102), a conductive fiber layer (103) and a corrosion-resistant fiber layer (104) are further disposed between the friction bump (101) and the wear-resistant fiber layer (105).
3. The novel downhole flexible composite mesh as claimed in claim 1, wherein said novel downhole flexible composite mesh has a tensile strength of 40KN to 800KN per square meter.
4. A novel downhole flexible composite web according to claim 1, wherein the flexible webs (2) are assembled in a criss-cross arrangement to form a face, and the crossing angle between the flexible webs (2) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023078240.3U CN214944378U (en) | 2020-12-20 | 2020-12-20 | Novel underground flexible composite net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023078240.3U CN214944378U (en) | 2020-12-20 | 2020-12-20 | Novel underground flexible composite net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214944378U true CN214944378U (en) | 2021-11-30 |
Family
ID=79114299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023078240.3U Expired - Fee Related CN214944378U (en) | 2020-12-20 | 2020-12-20 | Novel underground flexible composite net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214944378U (en) |
-
2020
- 2020-12-20 CN CN202023078240.3U patent/CN214944378U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207088611U (en) | A kind of waterproof roll | |
| CN102080560B (en) | Tunnel wind room relay ventilation method for long blind heading | |
| CN214944378U (en) | Novel underground flexible composite net | |
| CN205858397U (en) | Inclined shaft and positive hole ventilating system in constructing tunnel | |
| CN201007217Y (en) | Detonator exploding prevention wind pipe for mining | |
| CN206812558U (en) | A kind of high intensity tarpaulin | |
| CN104564130A (en) | Anti-deformation fast escape tube | |
| CN201262042Y (en) | Simple drilling rack | |
| CN204532415U (en) | A kind of fast-escape pipe with deixis | |
| CN200975261Y (en) | High Intensity composite net for mining | |
| CN204532417U (en) | A kind of resistance to deformation fast-escape pipe | |
| CN211692535U (en) | Steel band reinforced spiral tubular polyvinyl chloride composite material air duct | |
| WO2018076490A1 (en) | Straight pipe for comprehensive bamboo composite pipe gallery, and pipe gallery comprising same | |
| CN219865102U (en) | Special-shaped air duct | |
| CN2692458Y (en) | Under well gas extraction spiral pipe | |
| CN208118607U (en) | A kind of flame-proof polyvinyl chloride waterproof roll | |
| CN221442625U (en) | Underground coal mine anchor rope protective sleeve | |
| CN217373788U (en) | Geomembrane composite waterproof coiled material | |
| CN204282945U (en) | Wind-proof dust-suppression net | |
| CN215674042U (en) | Novel composite construction's gas drainage pipe | |
| CN210977328U (en) | Multifunctional oil extraction composite pipe | |
| CN219931292U (en) | Reinforced rock wool plate structure | |
| CN216477434U (en) | Underground compressed air pipeline | |
| CN201090843Y (en) | Heavy caliber gas pipe for coal mine downhole | |
| CN210266214U (en) | Subway tuber pipe fire prevention plugging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |