CN101845968B - Mining tunnel heat-insulation and fire-proofing combination wall - Google Patents
Mining tunnel heat-insulation and fire-proofing combination wall Download PDFInfo
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- CN101845968B CN101845968B CN 201010142253 CN201010142253A CN101845968B CN 101845968 B CN101845968 B CN 101845968B CN 201010142253 CN201010142253 CN 201010142253 CN 201010142253 A CN201010142253 A CN 201010142253A CN 101845968 B CN101845968 B CN 101845968B
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Abstract
The invention relates to a mining tunnel heat-insulation and fire-proofing combination wall; a plurality of heat-insulation and fire-proofing composite boards which are butted with each other are fixed on a steel wire gauze; the composite board comprises an outer flexible thin wall and an inner heat-insulation and fire-proofing layer, the layers of the composite board are fixed together, and an anchor rod mounting hole is arranged on the heat-insulation and fire-proofing composite board; all composite boards and the steel wire gauze are fixed on the side wall of the tunnel by inserting the anchor rod into anchor rod mounting holes of all composite boards and mesh openings corresponding to the steel wire gauze, and anti-static sealant is adopted at the junction positions among composite board and/or mounting positions of the anchor rod. In the invention, the mining tunnel heat-insulation and fire-proofing combination wall has the advantages of heat insulation and temperature reduction, sealing anti-oxidation fireproofing, reinforcement and replacing guniting, so as to reduce labor intensity, reduce cost and be convenient for construction and maintenance; the service life is long, the heat source is greatly reduced, the temperature reduction effect is improved, the usage can be repeated, and the resource is saved; the structure is simple, the cost is low, the production and manufacturing are easy, thereby being beneficial to popularization and operation in the mining field.
Description
One, technical field:
The present invention relates to the coal mine roadway heat-insulating technique, particularly relate to a kind of coal mine roadway heat-insulation and fire-proofing combination wall.
Two, background technology:
Traditional mine cooling often adopts draft type, but is difficult to effectively solve the mine laneway temperature, when air quantity is large, do not calculate economically, and flowing of air takes up dust from flying, contaminated environment easily.When adopting the refrigerating method cooling, because rock temperature is high, and the tunnel heat exchange amount is large, the waste mass energy, and a large amount of thermal losses to cause cooling-down effect be not fine.Aspect the mine cooling improvement, the heat insulation mode that adopts at present is directly heat-barrier material to be sprayed on the rock of tunnel, but it is even not that this heat insulation mode often sprays, and come off easily, because the impact of the rugosity factor on the curvature in tunnel and surface, tunnel, spray heat insulating material cause and waste time and energy and waste material.In addition, the spraying isolation layer causes that the time is in down-hole hot operation state on the workman in mine, and environment is abominable, and potential safety hazard is arranged.
Three, summary of the invention:
The present invention be directed to the defective and the deficiency that exist in the prior art, a kind of mining tunnel heat-insulation and fire-proofing combination wall is provided.
Technical scheme:
A kind of mining tunnel heat-insulation and fire-proofing combination wall, docked each other by the heat-insulating, fire-preventing composite plate of some and to be fixed on the gauze wire cloth, described heat-insulating, fire-preventing composite plate comprises the refractory insulating layer of outer field flexible thin-walled and internal layer, by gluing fixing or by rivet or be fixed by screws in together, be provided with the rockbolt installation hole in described heat-insulating, fire-preventing composite plate between each layer of heat-insulating, fire-preventing composite plate; Make each composite plate and gauze wire cloth be fixed on the tunnel sidewall in rockbolt installation hole by anchor pole being inserted each composite plate and the mesh of corresponding gauze wire cloth, and between each composite plate junction and/or adopt the antistatic fluid sealant to seal at place, rockbolt installation hole.
Described refractory insulating layer is litaflex, or other nonflammable heat-barrier materials.Flexible thin-walled then can adopt rubber peel.
Above-mentioned flexible thin-walled only is one deck, namely is fixed in the refractory insulating layer lateral surface.Yet described heat-insulating, fire-preventing composite plate can also comprise inside and outside two sheets of flexible thin-walled simultaneously, refractory insulating layer between the two sheets of flexible thin-walled, between each layer of heat-insulating, fire-preventing composite plate by gluing fixing or fix or by screw together by rivet.
Between described refractory insulating layer and flexible thin-walled, be provided with one deck every photosphere or scribble the thermal radiation resistant material layer.Described can being sprayed on refractory insulating layer or the flexible thin-walled side every the photosphere spraying (for example scribbles the thermal radiation resistant material layer at this flexibility thin-walled medial surface).
Described is the mercury reflecting coating every photosphere, perhaps is high brightness aluminium foil layer, perhaps other have reflectance high every luminescent material.
Described composite plate profile can for parallelogram for example rectangle (comprising square) or rhombus, also can be trapezoidal for example isosceles trapezoid or right-angled trapezium.Certainly its profile also can adopt certain mutual damascene structures shape.
Between described refractory insulating layer and flexible thin-walled, be provided with one deck every photosphere or scribble the thermal radiation resistant material layer.
As prop carrier, a gauze wire cloth can corresponding a plurality of heat-insulating, fire-preventing composite plates of while with gauze wire cloth.The heat-insulating, fire-preventing composite plate adopts movable fit system that (also can be fixed installation) is installed between gauze wire cloth, for example the setting of heat-insulating, fire-preventing composite plate medial surface buckles, buckle corresponding carry on the gauze wire cloth grid of correspondence, perhaps be fixed with fixed band at heat-insulating, fire-preventing composite plate medial surface, the fixed band end is equipped with belt fastener or fluking type eye-splice, and the heat-insulating, fire-preventing composite plate is fixed on the gauze wire cloth by belt fastener or fluking type eye-splice.Each piece heat-insulating, fire-preventing composite plate can be fixed on same the gauze wire cloth in advance, by anchor pole it is fixed on the inside wall of tunnel simultaneously.Also can adopt combination, namely first gauze wire cloth is fixed on the sidewall of tunnel, and then on gauze wire cloth, fix respectively a plurality of heat-insulating, fire-preventing composite plates.
Gauze wire cloth mainly plays the rigid support effect, and gauze wire cloth has again certain crooked variable simultaneously.The heat-insulating, fire-preventing composite plate is also can be in to a certain degree crooked, can be fit to tunnel sidewall trend after being fixed on the heat-insulating, fire-preventing composite plate on the gauze wire cloth arrange.By the anchor pole that tunnel itself exists heat-insulating, fire-preventing composite plate and gauze wire cloth are effectively fixed.
The abutting edge of described each composite plate adjacent wall adopts the docking of convex-concave fit structure and sealing.
Convex-concave fit structure kind is various, for example can adopt side around the limit, two opposite sides in each composite plate that the inside and outside step surface fit structure of coupling is set, also can be for the hypotenuse fit structure of coupling be set, perhaps also can be for the cambered surface fit structure of coupling be set.Can certainly adopt and be similar to jagged coupling docking structure.
Described convex-concave fit structure is in two opposite edges of each composite surface or edge flange and recessinterengaging means to be set.
Be set with rubber gasket in the butt seam between each composite plate, perhaps be fixed with rubber weather strip in the butt joint side of each composite plate.
When adopting inside and outside step surface fit structure between the composite plate, the rockbolt installation hole is arranged on each step surface.
When adopting inside and outside step surface fit structure between the composite plate, be fixed with bolt at interior step surface, correspondence is provided with through hole on the step surface outside, and set bolt inserts outer step surface through hole and stretches out rear and mate nut and fix.
Convex-concave fit structure kind is various, for example can adopt side around the limit, two opposite sides in each composite plate that the inside and outside step surface fit structure of coupling is set, also can be for the hypotenuse fit structure of coupling be set, perhaps also can be for the cambered surface fit structure of coupling be set.Can certainly adopt and be similar to jagged coupling docking structure.
Described convex-concave fit structure is two relative edges of each composite surface or edge flange and recessinterengaging means to be set.This flange and recessinterengaging means are to be similar to the tile fragment docking structure, and a rear composite plate is crimped on the last composite plate by groove or flange, the like consist of the combining structure be connected and fixed.Its flange can be for example cuboid or trapezoidal cylinder of fin post, also can be for curved flanges be for example semicircle or half elliptic flange of convex arc edge, groove can for the groove of fin coupling also can for the groove of convex arc edge coupling.
For being can be sealed fixing better between each composite plate, can also be set with rubber gasket in the butt seam between each composite plate, also can be fixed with rubber weather strip in the butt joint side of each composite plate.
Except above Butt sealing structure, when adopting inside and outside step surface fit structure between the composite plate, the rockbolt installation hole can also be arranged on each step surface, anchor pole directly inserts in the rockbolt installation hole on the inside and outside step surface adjacent two composite plates is fixed together.Certainly the rockbolt installation hole also can be arranged at the composite plate medium position simultaneously.
In addition, also have another kind of Butt sealing mode, when adopting inside and outside step surface fit structure between the composite plate, be fixed with bolt at interior step surface, correspondence is provided with through hole on the step surface outside, and set bolt inserts outer step surface through hole and stretches out rear and mate nut and fix.The rockbolt installation hole then is arranged on the composite plate medium position, and bolt and nut cooperate makes that adjacent composite plate is fixed to one another is in the same place, and anchor pole makes whole being fixed on of composite plate after the connection form the combination wall on the sidewall of tunnel.
Beneficial effect of the present invention:
1, mining tunnel heat-insulation and fire-proofing combination wall of the present invention has adiabatic cooling, seals anti-oxidation fire prevention, reinforcing, replacement whitewashing, thereby reduces workman's work, reduces cost, and mine cooling effect and flameproof effect are provided, just with construction with safeguard the service year limit for length.
2, mining tunnel heat-insulation and fire-proofing combination wall of the present invention, employing the tunnel inside wall fixedly the heat-insulating, fire-preventing composite plate and be combined to form the combination wall (also can be called artificial heat insulation tunnel), can reduce coefficient of thermal conductivity, namely reduce the heat output in the unit interval, can reduce rock and more than 80% of tunnel interchange of heat by experiment confirm repeatedly, greatly reduce thermal source, improve cooling-down effect.
3, mining tunnel heat-insulation and fire-proofing combination wall of the present invention, change traditional tunnel heat-insulation mode, alleviate time and the workload of heat-insulation working in the tunnel, with the prior suitability for industrialized production outside mine of double-layer folding heat-insulated barrel, it is heat insulation rapidly to be suitable for the interior rapid-assembling of mine, and can suitable dilatability and throw be arranged along the tunnel curvature, can Reusability, economize on resources.
4, mining tunnel heat-insulation and fire-proofing combination wall of the present invention can also play every wet effect, effectively reduces humidity in the tunnel.
5, mining tunnel heat-insulation and fire-proofing combination wall of the present invention is simple in structure, and is with low cost, manufactures easily, and result of use is very good, is beneficial to very much in the field of mining promotion and implementation.
Four, description of drawings:
Fig. 1 is mining tunnel mining tunnel heat-insulation and fire-proofing combination wall partial structurtes schematic diagram of the present invention;
Fig. 1-the 1st, heat-insulating, fire-preventing composite plate structure schematic diagram of the present invention;
Fig. 1-2 is the composite plate assembly structure schematic diagram of Fig. 1;
Fig. 1-the 3rd, the composite plate structure schematic diagram that band is withheld;
Fig. 1-the 4th, the vertical section structure schematic diagram of Fig. 1-3;
Fig. 2 is two of composite plate and gauze wire cloth installment state schematic diagram;
Fig. 3 is three of composite plate and gauze wire cloth installment state schematic diagram;
Fig. 4 and Fig. 4-1 expression composite plate cooperates installment state in the another kind of gauze wire cloth;
Fig. 5 be Fig. 1 the cross-sectional structure schematic diagram two;
Fig. 6 be Fig. 1 the cross-sectional structure schematic diagram three;
Fig. 7 be Fig. 1 the cross-sectional structure schematic diagram four;
Fig. 8 be Fig. 1 the cross-sectional structure schematic diagram five;
Fig. 9 be Fig. 1 the cross-sectional structure schematic diagram six;
Fig. 9-the 1st, the steel mesh structure schematic diagram of Fig. 9;
Figure 10 is another kind of composite plate structure schematic diagram.
Among the figure, numbering 1 is the heat-insulating, fire-preventing composite plate, and 2 is gauze wire cloth, 3 is the rockbolt installation hole, and 4 is anchor pole, and 51a is outer step surface fit structure, 51b is interior step surface fit structure, and 52 is the hypotenuse fit structure, and 53 is the cambered surface fit structure, 54 is oblique cambered surface fit structure, and 6 is the strip sealing mat, and 7 is the antistatic sealing joint strip, 8 is sealing rubber strip, and 9a is bolt, and 9b is nut, 9c is the nut pad, and 10a is the fixed band with belt fastener, and 10b is the fixed band with barb, 11a is outer flexible thin-walled, 11b is inboard flexible thin-walled, and 12 is refractory insulating layer, and 13 is every photosphere, 14 is the fixed block of strap bolt, 15 for being with the bolt of withholding, and 16 for withholding, and 17 is nut.
Five, the specific embodiment:
Embodiment one: referring to Fig. 1, Fig. 1-1, Fig. 1-2, Fig. 1-3, Fig. 1-4, a kind of mining tunnel heat-insulation and fire-proofing combination wall, docked each other by the heat-insulating, fire-preventing composite plate 1 of some and to be fixed on the gauze wire cloth 2, described heat-insulating, fire-preventing composite plate 1 comprises outer field flexible thin-walled 11a and the flexible thin-walled 11b of internal layer, be refractory insulating layer 12 between the two sheets of flexible thin-walled, between refractory insulating layer 12 and flexible thin-walled 11a, 11b, be provided with one deck every photosphere 13 (perhaps scribbling the thermal radiation resistant material layer) simultaneously.Can be sprayed on refractory insulating layer or the flexible thin-walled side every photosphere 13 sprayings.Described is the mercury reflecting coating every photosphere, perhaps is high brightness aluminium foil layer, perhaps other have reflectance high every luminescent material.Refractory insulating layer in the present embodiment is selected litaflex, also can select other nonflammable heat-barrier materials.Flexible thin-walled then can adopt rubber peel.
Be fixed together by gluing between each layer of heat-insulating, fire-preventing composite plate 1, also can be fixed together by rivet or screw, do not describe in detail.Be provided with rockbolt installation hole 3 in described heat-insulating, fire-preventing composite plate 1.Wherein heat-insulating, fire-preventing composite plate 1 and gauze wire cloth 2 surface area in the same sizes also can be slightly less than steel wire 2 web area heat-insulating, fire-preventing composite plate 1 area.Gauze wire cloth 2 mainly plays the rigid support effect, and gauze wire cloth 2 has again certain crooked variable simultaneously.Heat-insulating, fire-preventing composite plate 1 also can be crooked in to a certain degree, can be fit to tunnel sidewall trend after gauze wire cloth 2 and heat-insulating, fire-preventing composite plate 1 are fixed and arrange.The anchor pole 4 that exists by tunnel itself is effectively fixed it.Be provided with the rockbolt installation hole in described heat-insulating, fire-preventing composite plate; Make each composite plate and gauze wire cloth be fixed on the tunnel sidewall in rockbolt installation hole by anchor pole being inserted each composite plate and the mesh of corresponding gauze wire cloth, and between each composite plate junction and/or adopt the antistatic fluid sealant to seal at place, rockbolt installation hole.
Described composite plate profile can for parallelogram for example rectangle (comprising square) or rhombus, also can be trapezoidal for example isosceles trapezoid or right-angled trapezium.Certainly its profile also can adopt certain mutual damascene structures shape.
As prop carrier, a gauze wire cloth can corresponding a plurality of heat-insulating, fire-preventing composite plates of while with gauze wire cloth.The heat-insulating, fire-preventing composite plate adopts movable fit system to install between gauze wire cloth, shown in Fig. 1-2, Fig. 1-3, Fig. 1-4, the 1 medial surface setting of heat-insulating, fire-preventing composite plate buckles 16, buckling 16 is to fix with a nut 17 after running through composite plate by a bolt 15, and this bolt plays the purpose that makes composite plate fixing simultaneously.Buckle 16 corresponding carries on gauze wire cloth 2 grids of correspondence, each piece heat-insulating, fire-preventing composite plate 1 can be fixed on same the gauze wire cloth 2 in advance, by anchor pole 4 it is fixed on the inside wall of tunnel simultaneously.Also can adopt combination, namely first steel wire 2 nets are fixed on the sidewall of tunnel, and then on gauze wire cloth 2, fix respectively a plurality of heat-insulating, fire-preventing composite plates 1.
The abutting edge of described each composite plate 1 adjacent wall adopts the docking of convex-concave fit structure and sealing.
Convex-concave fit structure kind is various, and what adopt in the present embodiment is interior 51b and the outer step surface 51a fit structure that side arranges coupling around the limit, two opposite sides of each composite plate.Rockbolt installation hole 3 is arranged at the composite plate middle part, also increases simultaneously the sealing mat 6 of strip between inside and outside step surface.
Embodiment two: accompanying drawing is not drawn, meaning and embodiment one are basic identical, something in common does not repeat, different is: the rockbolt installation hole is arranged on each step surface, anchor pole directly is interspersed in the sealing of adjacent two composite plates is fixed together, also can at the stiffener middle part rockbolt installation hole and skyhook be set simultaneously.
Embodiment three: referring to Fig. 2, meaning and embodiment one are basic identical, something in common does not repeat, different is: be fixed with fixed band 10a with belt fastener at heat-insulating, fire-preventing composite plate medial surface, on the same position of composite plate medial surface, draw simultaneously two fixed bands, and connecting the belt fastener counterpart at the end of two fixed bands respectively, when needing fixedly two belt fasteners being passed behind the corresponding gauze wire cloth mutually, fastening gets final product.Two above-mentioned fixed bands can also be fixed on one of them the composite plate medial surface, and another is fixed on the gauze wire cloth opposite position.
Embodiment four: referring to Fig. 3, meaning and embodiment one are basic identical, something in common does not repeat, different is: be fixed with fixed band 10b with the barb eye-splice at heat-insulating, fire-preventing composite plate medial surface, on the same position of composite plate medial surface, draw simultaneously two fixed bands, and connecting barb eye-splice counterpart at the end of two fixed bands respectively, when needing fixedly two belt fasteners being passed behind the corresponding gauze wire cloth mutually, fastening gets final product.Two above-mentioned fixed bands can also be fixed on one of them the composite plate medial surface, and another is fixed on the gauze wire cloth opposite position.
Embodiment five: referring to Fig. 4, Fig. 4-1, meaning and embodiment one are basic identical, something in common does not repeat, different is: will be arranged at the fixed band of belt fastener the composite plate rear side, by first with the composite plate 1 of some respectively correspondence be fixed on the gauze wire cloth 2, then by anchor pole whole combination wall is being fixed on the inside wall of tunnel.
Embodiment six: referring to Fig. 5, meaning and embodiment one are basic identical, and something in common does not repeat, and different is: the cambered surface fit structure 54 (sleeping cambered surface fit structure) that the inclination of coupling is set between each composite plate 1 neighboring edge on the gauze wire cloth 2.Between two relative inclined-planes, increase simultaneously rubber weather strip 6.
Embodiment seven: referring to Fig. 6, meaning and embodiment one are basic identical, and something in common does not repeat, and different is: the hypotenuse fit structure of coupling, the simultaneously increase of the butt joint outside the sealing strip of hypotenuse fit structure 52 rubber weather strip 8 seals.
Embodiment eight: referring to Fig. 7, meaning and embodiment one are basic identical, and something in common does not repeat, and different is: the cambered surface fit structure that coupling is set between each composite plate 1 neighboring edge on the gauze wire cloth 2.Between two relative inclined-planes, increase simultaneously rubber weather strip 6.
Embodiment nine: referring to Fig. 8, meaning and embodiment one are basic identical, and something in common does not repeat, and different is: the cambered surface fit structure 53 that adopts coupling between each composite plate 1 neighboring edge on the gauze wire cloth 2.
Embodiment ten: referring to Fig. 9, Fig. 9-1, meaning and embodiment one are basic identical, something in common does not repeat, different is: be provided with set bolt 9a in the relevant position of gauze wire cloth, described set bolt 9a is fixed together in gauze wire cloth by setting-up piece 14, and be provided with through hole at the interior step surface 51b at adjacent two composite plate edges and the relevant position of outer step surface 51a, described standing screw is fixed with nut 9b after running through successively inside and outside step surface through hole, contacts in composite plate 1 by pad 9c under the nut.
More than each embodiment the Butt sealing structure of the different structure form that adopts between adjacent two composite plates that form the combination wall has been described, but be not limited in above hermetically-sealed construction, for example can also adopt to be similar to jagged coupling docking structure.In addition, the fixed form between each composite plate and the gauze wire cloth differs, and fixes such as the mode that can adopt tether etc.
Claims (10)
1. mining tunnel heat-insulation and fire-proofing combination wall, it is characterized in that: docked each other by the heat-insulating, fire-preventing composite plate of some and be fixed on the gauze wire cloth, described heat-insulating, fire-preventing composite plate comprises the refractory insulating layer of outer field flexible thin-walled and internal layer, by gluing fixing or by rivet or be fixed by screws in together, be provided with the rockbolt installation hole in described heat-insulating, fire-preventing composite plate between each layer of heat-insulating, fire-preventing composite plate; Make each composite plate and gauze wire cloth be fixed on the tunnel sidewall in rockbolt installation hole by anchor pole being inserted each composite plate and the mesh of corresponding gauze wire cloth, and between each composite plate junction and/or adopt the antistatic fluid sealant to seal at place, rockbolt installation hole.
2. mining tunnel heat-insulation and fire-proofing combination wall according to claim 1, it is characterized in that: described heat-insulating, fire-preventing composite plate comprises inside and outside two sheets of flexible thin-walled, refractory insulating layer between the two sheets of flexible thin-walled, between each layer of heat-insulating, fire-preventing composite plate by gluing fixing or by rivet or be fixed by screws in together.
3. each described mining tunnel heat-insulation and fire-proofing combination wall according to claim 1 and 2 is characterized in that: be provided with one deck every photosphere between described refractory insulating layer and flexible thin-walled or scribble the thermal radiation resistant material layer.
4. each described mining tunnel heat-insulation and fire-proofing combination wall according to claim 1 and 2 is characterized in that: described heat-insulating, fire-preventing composite plate perhaps is fixed on the gauze wire cloth by belt fastener or fluking type eye-splice by buckling carry on gauze wire cloth on its inside wall.
5. each described mining tunnel heat-insulation and fire-proofing combination wall according to claim 1 and 2, it is characterized in that: the abutting edge of described each composite plate adjacent wall adopts also sealing of convex-concave fit structure docking.
6. mining tunnel heat-insulation and fire-proofing combination wall according to claim 5, it is characterized in that: described convex-concave fit structure is that on the limit, two opposite sides of each composite plate or all around side arranges the inside and outside step surface fit structure of coupling, the hypotenuse fit structure of coupling perhaps is set, the cambered surface fit structure of coupling perhaps is set.
7. mining tunnel heat-insulation and fire-proofing combination wall according to claim 5, it is characterized in that: described convex-concave fit structure is in two opposite edges of each composite surface or edge flange and recessinterengaging means to be set.
8. each described mining tunnel heat-insulation and fire-proofing combination wall is characterized in that: be set with rubber gasket in the butt seam between each composite plate, perhaps be fixed with rubber weather strip in the butt joint side of each composite plate according to claim 6～7.
9. mining tunnel heat-insulation and fire-proofing combination wall according to claim 6 is characterized in that: when adopting inside and outside step surface fit structure between the composite plate, the rockbolt installation hole is arranged on each step surface.
10. mining tunnel heat-insulation and fire-proofing combination wall according to claim 6, it is characterized in that: when adopting inside and outside step surface fit structure between the composite plate, be fixed with bolt at interior step surface, correspondence is provided with through hole on the step surface outside, and set bolt inserts outer step surface through hole and stretches out rear and mate nut and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010142253 CN101845968B (en) | 2010-04-09 | 2010-04-09 | Mining tunnel heat-insulation and fire-proofing combination wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010142253 CN101845968B (en) | 2010-04-09 | 2010-04-09 | Mining tunnel heat-insulation and fire-proofing combination wall |
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| CN101845968A CN101845968A (en) | 2010-09-29 |
| CN101845968B true CN101845968B (en) | 2013-04-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746024Y (en) * | 2004-07-29 | 2005-12-14 | 公安部四川消防研究所 | Environmental protection type composite fireproof board for tunnel |
| CN2813752Y (en) * | 2005-06-14 | 2006-09-06 | 郭永红 | Thermal-keeping, heat insulating and fireproof composite board used for building roof slope and external wall elevation |
| CN201170115Y (en) * | 2008-03-07 | 2008-12-24 | 潍坊信泰消防科技有限公司 | Tunnel fire prevention felt |
| CN201884065U (en) * | 2010-04-09 | 2011-06-29 | 河南理工大学 | Mine tunnel heat insulation and fire prevention composite wall |
-
2010
- 2010-04-09 CN CN 201010142253 patent/CN101845968B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746024Y (en) * | 2004-07-29 | 2005-12-14 | 公安部四川消防研究所 | Environmental protection type composite fireproof board for tunnel |
| CN2813752Y (en) * | 2005-06-14 | 2006-09-06 | 郭永红 | Thermal-keeping, heat insulating and fireproof composite board used for building roof slope and external wall elevation |
| CN201170115Y (en) * | 2008-03-07 | 2008-12-24 | 潍坊信泰消防科技有限公司 | Tunnel fire prevention felt |
| CN201884065U (en) * | 2010-04-09 | 2011-06-29 | 河南理工大学 | Mine tunnel heat insulation and fire prevention composite wall |
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