CN104792162B - A kind of gangue tunnel cave preheats segment structure - Google Patents
A kind of gangue tunnel cave preheats segment structure Download PDFInfo
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- CN104792162B CN104792162B CN201510218254.5A CN201510218254A CN104792162B CN 104792162 B CN104792162 B CN 104792162B CN 201510218254 A CN201510218254 A CN 201510218254A CN 104792162 B CN104792162 B CN 104792162B
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Abstract
The invention discloses a kind of gangue tunnel cave preheats segment structure, it is characterised in that：The kiln car travelled including kiln body and in the kiln body, kiln body includes kiln crown, kiln wall and service aisle, kiln wall includes the body of wall plateau for being fixed on ground, and body of wall plateau is built into using rubble brick body, and the pad level of concreting is provided with the body of wall plateau；The first body of wall layer, the second cavity layer, cavity insulating and the 3rd body of wall layer for setting gradually from the inside to the outside is provided with pad level, service aisle side is leaned on to be provided with pad level for sealing the sand seal slot structure of kiln car bottom space, not only easy construction is quick for insulation construction of the present invention, and energy-conservation and environment-friendly advantage, heat insulation effect is improve, energy consumption is reduced；Rationally, the intensity of sand sealing groove is higher, and the cut-off effect between the steel skirtboard and the sand sealing groove of side wall of kiln car both sides is good for sand sealing groove structure setting.
Description
Technical field
The present invention relates to a kind of gangue tunnel cave preheats segment structure.
Background technology
Tunnel cave is usually a long linear tunnel, and fixed wall and vault, bottom paving are arranged at its both sides and top
If track on run kiln car.Combustion apparatus is located at the middle part both sides of tunnel cave, constitutes fixed thermal zone -- clinkering zone,
The high-temperature flue gas that burning is produced flow along tunnel to kiln hood direction, together in the presence of tunnel cave front end chimney or air-introduced machine
When preheated into the product in kiln step by step, this section constitutes the preheating zone of tunnel cave.Cold wind is blasted in the kiln tail of tunnel cave,
Latter section of product in cooling tunnel kiln, the cold wind for blasting flow through product and after being heated, then extract feeding exsiccator out as dry
The thermal source of dry green compact, this section just constitute the cooling zone of tunnel cave.In existing refractory material production process, it is contemplated that cost
Factor, mostly using gangue as combustion material, gangue is the solid waste discharged during coal mining process and coal washing, is
A kind of relatively low with a kind of phosphorus content of coal seam association in coalification course, harder than coal black gray expandable rock.Including tunnelling
During digging gangue, the spoil produced from top board, base plate and interlayer in mining process and choose during coal washing
Wash spoil.There is problems with during refractory material is fired in existing gangue tunnel preheating section of kiln：The guarantor of kiln body
Temp effect is poor, causes energy loss more, affects production cost and product quality；Sand sealing groove structure setting is unreasonable, sand seal
Groove cannot arrange very high height because intensity is limited, and cause the cut-off between the steel skirtboard of kiln car both sides and the sand sealing groove of side wall
Effect is poor so that cold air is easily leaked in people's kiln, and hot gas is also easily spilt outside kiln, affects production cost and product quality；Kiln
Top heat insulation structural arranges unreasonable, causes kiln crown insulating obtain powerful support, limits kiln crown insulating
Thickness, have impact on heat insulation effect.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency present in prior art, and a kind of reasonable in design is provided,
Better heat preservation, the gangue tunnel cave that sand sealing groove intensity is good, kiln crown heat insulation structural structural strength is high preheating segment structure.
The present invention the adopted technical scheme that solves the above problems is：
A kind of gangue tunnel cave preheats segment structure, it is characterised in that：Travel including kiln body and in the kiln body
Kiln car, kiln body include kiln crown, kiln wall and service aisle, and kiln wall includes the body of wall plateau for being fixed on ground, body of wall plateau
It is built into using rubble brick body, in the body of wall plateau, is provided with the pad level of concreting；It is all provided with pad level
The first body of wall layer, the second body of wall layer, wall heat insulation layer and the 3rd body of wall layer for setting gradually from the inside to the outside is equipped with, it is described
First body of wall layer is formed using concreting, and the second body of wall layer is built into using light fire brick, and the 3rd body of wall layer adopts brick body
It is built into, between the second body of wall layer and pad level, is provided with supporting layer, the supporting layer is built into using brick body, supporting layer and
The sealing coat of refractory brick composition is provided between three body of wall layers, between the first body of wall layer and supporting layer, coagulation is provided with
The articulamentum that soil is poured, the medial surface 30mm-60mm of medial surface distance the first body of wall layer of articulamentum, the inner side of articulamentum
Medial surface 80mm-120mm of the identity distance from supporting layer；The track structure for kiln car traveling, the track are provided with service aisle
Structure includes track plateau and track installation layer, and the track plateau is built into using rubble brick body, and the width of track plateau is
500mm-900mm, track installation layer are formed using concreting, and U bolt is embedded with track installation layer, U bolt
Track is provided between two ends, the track is fixed on U bolt by pressure strip；Arrange by service aisle side on pad level
Have for sealing the sand seal slot structure of kiln car bottom space, the sand sealing groove includes the angle steel being embedded in pad level, and angle steel is in
20 ° -70 ° are obliquely installed, be welded with dowel by service aisle side on angle steel, and dowel is fixedly arranged above sand sealing groove angle steel,
The section of the sand sealing groove angle steel is L-shaped, and the side of the dowel is welded with reinforcement steel plate, the sand sealing groove angle steel laminating
Strengthening steel plate and be bolted sand sealing groove angle steel and reinforcement steel plate, formed between sand sealing groove angle steel and pad level for holding
Receive sealing sand appearance sand launder；Kiln crown includes kiln crown cover plate, and elevator, the lower end connection kiln crown of elevator are fixed with below kiln crown cover plate
Insulating, the upper and lower ends of elevator are provided with inserting groove, and preheating section is provided with kiln crown insulating, the heat-insulated guarantor of kiln crown
The support boatswain chair for kiln crown insulating is provided with below warm layer, the boatswain chair is connected on elevator by steel wire rope；
The preheating section structure setting has throwing sandpipe, and the 4th body of wall that light fire brick is built into is provided with the pad level of inducer
Layer, the throwing sandpipe oblique cutting enter the 4th body of wall layer, and the inside and outside two ends for throwing sandpipe are passed from inside and outside the 4th body of wall layer respectively,
Throw sandpipe to be obliquely installed in 20 ° -70 °, the outer end for throwing sandpipe is provided with the throwing sandpipe cover plate being hinged on throwing sandpipe；The preheating
Segment structure is provided with smoke extractor, and smoke extractor includes being arranged on multiple first connecting tubes above kiln crown cover plate, and described first
The two ends of connecting tube have been respectively communicated with the second connecting tube, and two the second connecting tubes penetrate kiln wall from the both sides for preheating segment structure respectively
And be communicated in service aisle, it is communicated with multiple the 3rd connecting tubes that are set in distance below first connecting tube, described
Three connecting tubes pass through the 4th connecting tube reality in being vertically arranged and penetrating kiln crown to be communicated in service aisle between the first connecting tube
Now connect, the 4th connecting tube accesses fume extraction fan；Arrange between adjacent orbit mounting layer in the service aisle of preheating segment structure
Have every hollow plate, it is described to be built into using pea gravel concreten every hollow plate, it is arranged between adjacent orbit mounting layer spatially every hollow plate
Side.
The present invention compared with prior art, with advantages below and effect：
1) not only easy construction is quick for insulation construction, and energy-conservation and environment-friendly advantage, improves heat insulation effect, reduces energy
Consumption；
2) rationally, the intensity of sand sealing groove is higher for sand sealing groove structure setting, the steel skirtboard of kiln car both sides and the sand seal of side wall
Cut-off effect between groove is good, improves integral sealing effect so that cold air is not allowed in leakiness people's kiln, and hot gas is not easy to spill
Outside kiln, it is ensured that production cost and product quality, simple and reliable for structure, low cost, long service life.
3) kiln crown heat insulation structural arranges reasonable, kiln crown insulating can with powerful support, can arrange thicker kiln crown every
Hot heat-insulation layer, it is ensured that heat insulation effect, simple structure, kiln crown easy construction, construction cost are low；
4) sand is thrown by throwing sandpipe, the sand in sand sealing groove can be supplemented in process of production at any time, and sand can be with
Driven by sand sealing knife forward, it is not necessary to be manually entered in kiln plus sand, eliminate hand labor input, simple structure, easy construction；
5) by arranging multiple discharge ducts, carry out central exhaust so that the negative pressure of kiln hood is unlikely to too big, solves
The problem that existing structure is present, and have adjusted the temperature curve in kiln, it is ensured that quality of finished in kiln, and arrange every sky
Plate, and reduce the flow effect in kiln.
Description of the drawings
Fig. 1 is the structural representation of the energy-saving tunnel cave of the embodiment of the present invention.
Fig. 2 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at A-A.
Fig. 3 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at B-B.
Fig. 4 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at C-C.
Fig. 5 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at D-D.
Fig. 6 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at E-E.
Fig. 7 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at F-F.
Fig. 8 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at G-G.
Fig. 9 is the cross section structure schematic diagram in the embodiment of the present invention in Fig. 1 at H-H.
Figure 10 is embodiment of the present invention middle orbit mounting structure schematic diagram.
Figure 11 is the structural representation of sand seal slot structure in the embodiment of the present invention.
Figure 12 is the Elevator structure schematic diagram in the embodiment of the present invention.
Figure 13 is the mounting structure schematic diagram of suspended block and axle brick in the embodiment of the present invention.
Figure 14 is the structural representation of throwing coal pipe in the embodiment of the present invention.
Figure 15 is the mounting structure schematic diagram of aerator in the embodiment of the present invention.
Figure 16 is the mounting structure schematic diagram of another angle aerator in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following examples are to this
Bright explanation and the invention is not limited in following examples.
Referring to Fig. 1-Figure 16, the present embodiment gangue tunnel cave, including the kiln body for extending transversely and in the kiln body
The kiln car of interior traveling, kiln body include kiln crown, kiln wall and service aisle 1, and service aisle 1 includes inducer in the direction of extension successively
L1, preheating section L2, furnace zone L3, soaking zone L4 and cooling section L5, kiln wall include the body of wall plateau 21 for being fixed on ground,
Body of wall plateau 21 is built into using rubble brick body, and the pad level of concreting is provided with the body of wall plateau 21
22。
Be provided with the pad level 22 of preheating section L2, furnace zone L3, soaking zone L4 and cooling section L5 from the inside to the outside according to
First body of wall layer 23 of secondary setting, the second body of wall layer 24, wall heat insulation layer 25 and the 3rd body of wall layer 26, first wall
Body layer 23 is formed using concreting, and the second body of wall layer 24 is built into using light fire brick, and the 3rd body of wall layer 26 adopts brick body
It is built into, between the second body of wall layer 24 and pad level 22, is provided with supporting layer 27, the supporting layer 27 is built into using brick body,
The sealing coat 28 of refractory brick composition, the first body of wall layer 23 and supporting layer 27 are provided between support layer 27 and the 3rd body of wall layer 26
Between be provided with the articulamentum 29 of concreting, the inner side of the first body of wall of medial surface distance layer 23 of articulamentum 29
Face 30mm-60mm, the medial surface 80mm-120mm of the medial surface of articulamentum apart from supporting layer 27.
It is provided with the service aisle 1 of inducer L1, preheating section L2, furnace zone L3, soaking zone L4 and cooling section L5 and supplies kiln
34 structure of track of car traveling, 34 structure of the track include track plateau 31 and track installation layer 32, the track plateau 31
It is built into using rubble brick body, the width of track plateau 31 is 500mm-900mm, and track installation layer 32 is using concreting
Into, U bolt 33 is embedded with track installation layer 32, track 34 is provided between the two ends of U bolt 33, the track 34 leads to
Cross pressure strip 35 to be fixed on U bolt 33.
Service aisle is leaned on the pad level 22 of inducer L1, preheating section L2, furnace zone L3, soaking zone L4 and cooling section L5
1 side is provided with for sealing the sand seal slot structure 41 of kiln car bottom space, and the sand sealing groove includes being embedded in pad level 22
Angle steel 42, angle steel 42 are obliquely installed in 20 ° -70 °, are welded with dowel 43 by 1 side of service aisle on angle steel 42, dowel 43
Sand sealing groove angle steel 44 is fixedly arranged above, the section of the sand sealing groove angle steel 44 is L-shaped, and the side of the dowel 43 is welded with
Strengthen steel plate 45, the sand sealing groove angle steel 44 is fitted in reinforcement steel plate 45 and is bolted sand sealing groove angle steel 44 and strengthens steel
Plate 45, forms between sand sealing groove angle steel 44 and pad level 22 for accommodating the appearance sand launder 46 for sealing sand.
Kiln crown includes kiln crown cover plate, and the two ends of kiln crown cover plate are supported on the top of the 3rd body of wall layer 26.
Elevator 51, elevator are fixed with below the kiln crown cover plate of preheating section L2, furnace zone L3, soaking zone L4 and cooling section L5
51 lower end connects kiln crown insulating 52, and the upper and lower ends of elevator 51 are provided with inserting groove 511, preheating section L2, roasting
Section L3, soaking zone L4 are provided with kiln crown insulating 52, the lower section of kiln crown insulating 52 be provided with for kiln crown every
The support boatswain chair 53 of hot heat-insulation layer 52, the boatswain chair are connected on elevator 51 by steel wire rope.
Preheating section L2 is provided with throwing sandpipe 61, air intake structure, is provided with lightweight resistance on the pad level 22 of inducer L1
The 4th body of wall layer 62 that firebrick is built into, throwing 61 oblique cutting of sandpipe enter the 4th body of wall layer 62, throw the inside and outside two ends difference of sandpipe 61
Pass from inside and outside the 4th body of wall layer 62, throw sandpipe 61 and be obliquely installed in 20 ° -70 °, the outer end for throwing sandpipe 61 arranges hinged
It is connected on the throwing sandpipe cover plate 63 thrown on sandpipe 61.
The air intake structure includes being arranged on the air inlet duct 71 on the outside of the kiln wall of inducer L1, and the air inlet duct 71 is using light
Refractory brick is built into, and the inducer L1 is provided with from air inlet duct 71 air inlet pipe 72 for penetrating body of wall plateau 21, the air inlet pipe
72 the inner is arranged on the medium position of service aisle 1, is provided with the first track cover plate 73 in the service aisle 1 of inducer L1,
The two ends of the first track cover plate 73 are fixed on two neighboring track installation layer 32.
Preheating section L2 is provided with smoke extractor, and smoke extractor includes being arranged on multiple first connecting tubes above kiln crown cover plate
81, the two ends of first connecting tube 81 have been respectively communicated with the second connecting tube 82, and two the second connecting tubes 82 are respectively from preheating section
The both sides of L2 penetrate kiln wall and are communicated in service aisle 1, and the lower section of first connecting tube 81 is communicated with and multiple sets in interval
The 3rd connecting tube 83 is put, and in being vertically arranged and kiln crown being penetrated to be communicated in service aisle 1, first connects the 3rd connecting tube 83
Connection is realized by the 4th connecting tube 84 between adapter 81, the 4th connecting tube 84 accesses fume extraction fan.
It is provided between adjacent orbit mounting layer 32 in the service aisle 1 of preheating section L2 every hollow plate 102, it is described every hollow plate
Be built into using pea gravel concreten, the space above between adjacent orbit mounting layer 32 is arranged on every hollow plate.
Furnace zone L3 is provided with for throwing in the throwing texture of coal of gangue, and throwing texture of coal includes kiln is penetrated from above kiln crown
The throwing coal pipe 11 of service aisle 1 is pushed up and is communicated to, the throwing coal pipe 11 includes throwing pipe 111 and throwing coal down tube 112, the throwing on coal
Connected by flange arrangement 113 between pipe 111 and throwing coal down tube 112 on coal, the top for throwing pipe 111 on coal is by throwing coal pipe
Lid 114 realizes sealing, and described throwing be provided with coal lid 114 for lifting the handle 115 for throwing coal lid 114, throws pipe 111 on coal
On be welded with the retainer ring 116 for being against kiln crown.
Furnace zone L3 is provided with first for controlling temperature in service aisle 1 and send hot air apparatus, and first send hot air apparatus
Including the 5th connecting tube 85 for being arranged on kiln crown, the lower section of the 5th connecting tube 85 is communicated with multiple the 6th companies that are set in distance
Adapter 86, in being vertically arranged and penetrating kiln crown to be communicated in service aisle 1, the 5th connecting tube 85 is connected to the 6th connecting tube 86
Send hot-air blower 101.
Soaking zone L4 is provided with second for controlling temperature in service aisle 1 and send hot air apparatus, and second send hot air apparatus
Including multiple 7th connecting tubes 87 being arranged on above kiln crown cover plate, the two ends of the 7th connecting tube 87 have been respectively communicated with the 8th
Connecting tube 88, two the 8th connecting tubes 88 penetrate kiln wall from the both sides of soaking zone L4 respectively and are communicated in service aisle 1, described
The lower section of the 7th connecting tube 87 is communicated with multiple the 9th connecting tubes 89 that are set in distance, and the 9th connecting tube 89 is in be vertically arranged
And kiln crown is penetrated to be communicated in service aisle 1, realize connecting and connecting by the tenth connecting tube 810 between the 7th connecting tube 87
To hot-air blower 101 is sent, send in the service aisle 1 that hot-air blower 101 is connected to preheating section L2.
Preheating section L2 and furnace zone L3 are provided with for sensing in service aisle 1 baroceptor of air pressure and for feeling
The temperature sensor of the temperature surveyed in service aisle 1, temperature sensor and baroceptor connection control system, control system connect
Hot-air blower 101 is picked, cooling section L5 is provided with for pressure balanced air-blast device in service aisle 1, the air-blast device bag
Aerator 121 is included, the aerator installation that refractory brick is built in service aisle 1, between two neighboring track plateau 31, is provided with
Platform 122, aerator erecting bed 122 are provided with for installing 121 installing hole of aerator of aerator 121, and the aerator is installed
1 bottom surface of service aisle residing for platform 122 is obliquely installed in 15 ° -35 °, air-blast device connection control system.
Soaking zone L4 is provided with 131 structure of suspended block, and 131 structure of the suspended block includes multiple suspended blocks successively against arrangement
131, the suspended block 131 is in inverted T-shape, and the upper end of the suspended block 131 is provided with for snapping in 51 lower end inserting groove 511 of elevator
Inserted terminal 1311, the lower end both sides of the suspended block 131 are provided with semicircular 132 installing hole of axle brick, two neighboring suspended block 131
132 installing hole of axle brick is spliced into 132 hole of axle brick for the insertion of axle brick 132, and thermal insulating material is filled between two neighboring suspended block 131
Material.
Above content described in this specification is only illustration made for the present invention.Technology belonging to of the invention
The technical staff in field can make various modifications or supplement or adopt similar mode to described specific embodiment
Substitute, content without departing from description of the invention or surmount scope defined in the claims, this all should be belonged to
The protection domain of invention.
Claims (1)
1. a kind of gangue tunnel cave preheats segment structure, it is characterised in that：The kiln travelled including kiln body and in the kiln body
Car, kiln body include kiln crown, kiln wall and service aisle, and kiln wall includes the body of wall plateau for being fixed on ground, and body of wall plateau is adopted
It is built into rubble brick body, in the body of wall plateau, is provided with the pad level of concreting；It is respectively provided with pad level
There is the first body of wall layer, the second body of wall layer, wall heat insulation layer and a 3rd body of wall layer for setting gradually from the inside to the outside, described
One body of wall layer is formed using concreting, and the second body of wall layer is built into using light fire brick, and the 3rd body of wall layer is built using brick body
Into, supporting layer is provided between the second body of wall layer and pad level, the supporting layer is built into using brick body, supporting layer and the 3rd
The sealing coat of refractory brick composition is provided between body of wall layer, between the first body of wall layer and supporting layer, concrete is provided with
The articulamentum for pouring, the medial surface 30mm-60mm of medial surface distance the first body of wall layer of articulamentum, the medial surface of articulamentum
Apart from the medial surface 80mm-120mm of supporting layer；The track structure for kiln car traveling, the track knot are provided with service aisle
Structure includes track plateau and track installation layer, and the track plateau is built into using rubble brick body, and the width of track plateau is
500mm-900mm, track installation layer are formed using concreting, and U bolt is embedded with track installation layer, U bolt
Track is provided between two ends, the track is fixed on U bolt by pressure strip；Arrange by service aisle side on pad level
Have for sealing the sand seal slot structure of kiln car bottom space, the sand sealing groove includes the angle steel being embedded in pad level, and angle steel is in
20 ° -70 ° are obliquely installed, be welded with dowel by service aisle side on angle steel, and dowel is fixedly arranged above sand sealing groove angle steel,
The section of the sand sealing groove angle steel is L-shaped, and the side of the dowel is welded with reinforcement steel plate, the sand sealing groove angle steel laminating
Strengthening steel plate and be bolted sand sealing groove angle steel and reinforcement steel plate, formed between sand sealing groove angle steel and pad level for holding
Receive sealing sand appearance sand launder；Kiln crown includes kiln crown cover plate, and elevator, the lower end connection kiln crown of elevator are fixed with below kiln crown cover plate
Insulating, the upper and lower ends of elevator are provided with inserting groove, and preheating section is provided with kiln crown insulating, the heat-insulated guarantor of kiln crown
The support boatswain chair for kiln crown insulating is provided with below warm layer, the boatswain chair is connected on elevator by steel wire rope；
The preheating section structure setting has throwing sandpipe, and the 4th body of wall that light fire brick is built into is provided with the pad level of inducer
Layer, the throwing sandpipe oblique cutting enter the 4th body of wall layer, and the inside and outside two ends for throwing sandpipe are passed from inside and outside the 4th body of wall layer respectively,
Throw sandpipe to be obliquely installed in 20 ° -70 °, the outer end for throwing sandpipe is provided with the throwing sandpipe cover plate being hinged on throwing sandpipe；The preheating
Segment structure is provided with smoke extractor, and smoke extractor includes being arranged on multiple first connecting tubes above kiln crown cover plate, and described first
The two ends of connecting tube have been respectively communicated with the second connecting tube, and two the second connecting tubes penetrate kiln wall from the both sides for preheating segment structure respectively
And be communicated in service aisle, it is communicated with multiple the 3rd connecting tubes that are set in distance below first connecting tube, described
Three connecting tubes pass through the 4th connecting tube reality in being vertically arranged and penetrating kiln crown to be communicated in service aisle between the first connecting tube
Now connect, the 4th connecting tube accesses fume extraction fan；Arrange between adjacent orbit mounting layer in the service aisle of preheating segment structure
Have every hollow plate, it is described to be built into using pea gravel concreten every hollow plate, it is arranged between adjacent orbit mounting layer spatially every hollow plate
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218254.5A CN104792162B (en) | 2015-04-29 | 2015-04-29 | A kind of gangue tunnel cave preheats segment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218254.5A CN104792162B (en) | 2015-04-29 | 2015-04-29 | A kind of gangue tunnel cave preheats segment structure |
Publications (2)
| Publication Number | Publication Date |
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| CN104792162A CN104792162A (en) | 2015-07-22 |
| CN104792162B true CN104792162B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510218254.5A Expired - Fee Related CN104792162B (en) | 2015-04-29 | 2015-04-29 | A kind of gangue tunnel cave preheats segment structure |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2306729C2 (en) * | 1973-02-12 | 1974-08-22 | Keller Ofenbau Gmbh, 4533 Laggenbeck | Sand seal for sealing the access channel in a tunnel kiln for the ceramic industry |
| JPS57144881A (en) * | 1981-03-03 | 1982-09-07 | Kurosaki Refractories Co | Sand sealing apparatus for tunnel kiln |
| CN2081519U (en) * | 1990-06-05 | 1991-07-24 | 王洪 | Kiln vehicle |
| CN201488536U (en) * | 2009-06-25 | 2010-05-26 | 鞍钢集团耐火材料公司 | Uniform distribution device of kiln sands of tunnel kiln |
| CN204757658U (en) * | 2015-04-29 | 2015-11-11 | 长兴震铭耐火材料有限公司 | Gangue tunnel cave preheating section structure |
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2015
- 2015-04-29 CN CN201510218254.5A patent/CN104792162B/en not_active Expired - Fee Related
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| CN104792162A (en) | 2015-07-22 |
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