CN203753876U - Dustproof cover of mine conveying belt - Google Patents
Dustproof cover of mine conveying belt Download PDFInfo
- Publication number
- CN203753876U CN203753876U CN201420129115.6U CN201420129115U CN203753876U CN 203753876 U CN203753876 U CN 203753876U CN 201420129115 U CN201420129115 U CN 201420129115U CN 203753876 U CN203753876 U CN 203753876U
- Authority
- CN
- China
- Prior art keywords
- belt conveyor
- fixed
- air baffle
- baffle plate
- belt
- 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
Abstract
The utility model provides a dustproof cover of a mine conveying belt, and belongs to the field of mine conveying belt windproof equipment. A transverse upper baffle (3) is fixed to the upper portion of a conveying belt (11) on the two sides of an adjusting wall (6), the two sides of the conveying belt (11) are fixedly provided with side baffles (7), front openings of the upper baffle (3) and the side baffles (7) are fixedly provided with an air baffle (14), the rear side of the air baffle (14) is further fixedly provided with multiple dust collecting baffles (10) at intervals, and the air baffle (14) and the dust collecting baffles (10) are made of flexible materials and are vertically fixed to the upper side of the conveying belt (11). The air baffle blocks high-speed air flow, meanwhile, the dust collecting baffles gradually reduce air speed, large-particle coal can be blocked and fall back to the belt, small-particle coal falls back to the conveying belt after reaching an area with stable air speed with gradual reduction of the air speed, coal dust is prevented from being mixed with the air flow, the windproof effect is good, work environment is improved, and safe production of mines is guaranteed.
Description
Technical field
The dust boot of colliery belt conveyor, belongs to belt conveyor windbreak field, colliery.
Background technology
For ensureing personal security and need of production, in mine, build adjusting wall by laying bricks or stones, on adjusting wall, offer regulation wind window, regulate air quantity by the cross section that changes regulation wind window, the needs that transport and ventilate according to ore deposit, part travelling belt need be through adjusting wall.In the time of the distinguished and admirable punch holes through overregulate wall because ventilation section diminishes suddenly, the wind speed of punch holes of flowing through can become large, in the time that belt fortune has coal, coal is blown out belt by the distinguished and admirable meeting of high speed, oarse-grained coal dust can accumulation need labor cleaning near adjusting brattice, short grained coal dust can be blown afloat be blended into distinguished and admirable in, these short grained coal dusts have not only polluted the distinguished and admirable further Dust Concentration that has worsened the working environment of down-hole but also increased in distinguished and admirable and have caused potential safety hazard, utility model people finds in experimentation, if adopt the air baffle of hard, coal on belt conveyor easily collides with air baffle, if and adopt flexible air baffle, because the wind speed at punch holes place is very large, distinguished and admirable being easy to of high speed just blown afloat flexible air baffle, windproof effect is very poor, cannot reach dustproof object.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art; a kind of windproof effect that improves is provided; ensure the clean environment of delivered downhole belt tunnel high wind speed section; reduced and sneaked into distinguished and admirable coal powder content, improved down-hole working environment, protected the dust boot of the colliery belt conveyor of the safety in production of mine.
The utility model solves the technical scheme that its technical matters adopts: the dust boot of this colliery belt conveyor, comprise belt conveyor and regulate wall, belt conveyor is through the punch holes that regulates wall, above the belt conveyor that regulates wall both sides, be fixed with horizontal overhead gage, belt conveyor both sides are fixed with side shield, the front opening of overhead gage and side shield is fixed with an air baffle, also be fixed with multiple dirt baffle plates of catching in interval at air baffle rear side, air baffle with catch dirt baffle plate and be flexible material, be vertically fixed on belt conveyor upside.Regulating wall both sides that overhead gage and side shield are set, can make the front opening of overhead gage and side shield leave forward the punch holes that regulates wall, the distinguished and admirable front opening that enters overhead gage and side shield of avoiding punch holes place to increase suddenly, reduces wind speed; Overhead gage, side shield and air baffle, catch and between dirt baffle plate, form airtight dust boot, air baffle stops that high speed is distinguished and admirable, multiple dirt baffle plates of catching reduce wind speed gradually simultaneously, oarse-grained coal can be blocked again and make its meeting belt that falls, short grained coal dust is along with wind speed reduces gradually, and belt conveyor again falls back while arriving the mild region of wind speed.
Preferably, described air baffle is that waveform or zig-zag contact with belt conveyor upper surface with catching dirt baffle plate lower end.Existing air baffle lower end is and is horizontally disposed with, belt conveyor is in the time carrying coal, coal varies in size, coal upper side on belt conveyor is uneven, air baffle lower end and coal surface easily form gap, and wind can be blown into the coal belt is blown off from gap, pile up granule coal at the punch holes place that regulates wall, and the wearing and tearing of the lower end of this air baffle are very fast, service life is short.Changing technical scheme adopts after waveform or zig-zag, air baffle with catch dirt baffle plate lower end can close contact coal upper surface, avoid forming space, improve windproof and dust-proof effect, air baffle, with to catch dirt baffle plate be flexible material, deforms while running into oarse-grained coal, make bulky grain coal all the time from air baffle with catch dirt baffle plate waveform or jagged recess passes through, reduce friction, improved service life.
Preferably, described air baffle with catch dirt baffle plate and form by multiple strip balata belt close-packed arrays, balata belt lower end is triangle.In the time running into coal and stop, each balata belt can separate each other, and oarse-grained coal can, from process between two balata belts, reduce the resistance of belt conveyor, reduces coal to air baffle and catches the friction of dirt baffle plate, improves service life; Balata belt lower end is triangle, and close-packed arrays rear wind-break panels forms zig-zag with catching dirt baffle plate lower end, easy to process.
Preferably, described overhead gage and side shield are flexible material, are fixed on top and the both sides of belt conveyor by fixed mount, and air baffle is fixed on fixed mount with the upper end of catching dirt baffle plate.Overhead gage and the side shield of flexible material carries, installs, removes conveniently, is convenient to construct in mine.
Preferably, described fixed mount comprises the multiple F shape supports that are fixed on belt conveyor both sides, two crossbeams of F shape support point to belt conveyor one side, on the entablatrance of F shape support, be fixed with support beam, overhead gage, catch dirt baffle plate and air baffle is all fixed on support beam, side shield top is fixed on entablatrance the inner of F shape support, and bottom is fixed on cross sill the inner of F shape support.Adopt F shape support can make vertical portion and belt conveyor interval arrange, be convenient to install, and be convenient to sweep the coal that belt conveyor falls.
Preferably, described support beam comprises longitudinal ligament beam and cross-tie beam, longitudinal ligament beam is fixed on along belt conveyor transmission direction on the entablatrance of F shape support, cross-tie beam two ends are separately fixed on the entablatrance of F shape support of both sides, overhead gage is laid on cross-tie beam, overhead gage both sides are fixedly connected with longitudinal ligament beam, air baffle with catch dirt baffle plate upper end and be fixed on cross-tie beam by baffle plate button.Because overhead gage and side shield all adopt flexible material, can support overhead gage by cross-tie beam, prevent that overhead gage from hanging, overhead gage is fixedly connected with longitudinal ligament beam, improves leak tightness and dust-proof effect, air baffle with catch dirt baffle plate and be hung on cross-tie beam, simple in structure, convenient fixing.
Preferably, described longitudinal ligament beam is made up of multistage, and the docking of multistage longitudinal ligament beam head and the tail is also fixed by junction button.Can be according to wind speed and coal particles size, regulate the length of longitudinal ligament beam, adjust the length of overhead gage, side shield, and installation, convenient disassembly.
Preferably, described F shape support lower end is the U-shaped buckle that Open Side Down, and U-shaped buckle is fastened on the belt support frame of belt conveyor, and U-shaped buckle lower ending opening is strained by overbolt.U-shaped buckle can slide along belt support frame, is convenient to regulate the lengthwise position of air baffle, overhead gage and side shield.
Compared with prior art, the beneficial effect that the dust boot of colliery belt conveyor has is:
1, windproof effect is good, air baffle stops that high speed is distinguished and admirable, and multiple dirt baffle plates of catching reduce wind speed gradually simultaneously, oarse-grained coal can be blocked again and make its meeting belt that falls, short grained coal dust is along with wind speed reduces gradually, and belt conveyor again falls back while arriving the mild region of wind speed.The clean environment that ensures delivered downhole belt tunnel high wind speed section, has reduced and has sneaked into distinguished and admirable coal powder content, has improved the working environment of down-hole, has protected the safety in production of mine.
2, air baffle is with to catch dirt baffle plate wearing and tearing little, long service life, adopt waveform or jagged air baffle and catch dirt baffle plate, lower end can close contact coal upper surface, avoid forming space, improve windproof and dust-proof effect, air baffle is flexible material with catching dirt baffle plate, while running into oarse-grained coal, deform, make bulky grain coal all the time from catching dirt baffle plate or jagged recess passes through, reduce friction, oarse-grained coal can pass through between two balata belts simultaneously, reduce the resistance of belt conveyor, reduce coal to air baffle and the friction of catching dirt baffle plate, improve service life.
3, installation, convenient disassembly, overhead gage and the side shield of flexible material carries, installs, removes conveniently, is convenient to construct in mine, adopts F shape support can make vertical portion and belt conveyor interval arrange, and is convenient to install.
4, easy to adjust, can, according to wind speed and coal particles size, regulate the length of longitudinal ligament beam, adjust the length of overhead gage, side shield, U-shaped buckle can slide along belt support frame, is convenient to regulate the lengthwise position of air baffle, overhead gage and side shield.
Brief description of the drawings
Fig. 1 is the structural representation of the dust boot embodiment 1 of colliery belt conveyor.
Fig. 2 is the cutaway view schematic diagram at A-A place in Fig. 1.
Fig. 3 is the local enlarged diagram at B place in Fig. 2.
Fig. 4 is the partial schematic diagram of the cutaway view at C-C place in Fig. 2.
Fig. 5 is the structural representation of the dust boot embodiment 2 of colliery belt conveyor.
Fig. 6 is the structural representation of the dust boot embodiment 3 of colliery belt conveyor.
Wherein: 1, longitudinal ligament beam 2, baffle plate button 3, overhead gage 4, cross-tie beam 5, F shape support 6, regulate wall 601, punch holes 7, side shield 8, belt support frame 9, overbolt 10, catch dirt baffle plate 11, belt conveyor 12, junction button 13, U-shaped buckle 14, air baffle.
Detailed description of the invention
Fig. 1 ~ 4th, the most preferred embodiment of the dust boot of the utility model colliery belt conveyor, is described further below in conjunction with 1 ~ 6 pair of the utility model of accompanying drawing.
Embodiment 1
With reference to Fig. 1～2, the dust boot of colliery belt conveyor, comprise and regulate wall 6 and belt conveyor 11, belt conveyor 11 is through the punch holes 601 that regulates wall 6, regulate belt conveyor 11 tops of wall 6 both sides to be fixed with the overhead gage 3 of level, both sides are fixed with side shield 7, overhead gage 3 is fixed with air baffle 14 with the front opening of side shield 7, air baffle 14 rear sides are also fixed with multiple dirt baffle plates 10 of catching, air baffle 14 with catch dirt baffle plate 10 and be flexible material, vertically be fixed on the upside of belt conveyor 11, in figure, the direction of arrow is the transmission direction of belt conveyor 11, regulate the wind section at wall 6 places to diminish suddenly, the wind speed of punch holes 601 of flowing through can become large, air baffle 14 stops that high speed is distinguished and admirable, but because wind speed is very fast, still can be blown in the space that overhead gage 3 and side shield 7 form, now catching dirt baffle plate 10 further stops distinguished and admirable, the dirt baffle plate 10 of catching of multilayer makes wind speed weakening step by step, and catch dirt baffle plate 10 oarse-grained coal is stopped it is fallen back on belt conveyor 11, short grained coal dust also can reducing and falling back on belt conveyor 11 along with wind speed gradually.
With reference to Fig. 2～3, belt conveyor 11 both sides are fixing by belt support frame 8, on belt support frame 8, interval is fixed with F shape support 5, two crossbeams of F shape support 5 all point to belt conveyor 11 1 sides, can make vertical portion and belt conveyor 11 intervals of F shape support 5 arrange, increase installing space, and be convenient to clear up the coal of belt conveyor 11 both sides, upper beam the inner of F shape support 5 is fixed with along the longitudinal ligament beam 1 of belt conveyor 11 transmission directions, the upside of the longitudinal ligament beam 1 of both sides is interval with cross-tie beam 4, the two ends of cross-tie beam 4 are fixed in the upper beam of F shape support 5, firm supporting, reduce the stressed of longitudinal ligament beam 1, improve support strength, overhead gage 3 is flexible material with side shield 7, be convenient to carry in lower narrow tunnel, easy for installation, overhead gage 3 is laid on the upside of cross-tie beam 4, air baffle 14 is fixed on cross-tie beam 4 by baffle plate button 2, overhead gage 3 both sides are fixedly connected with longitudinal ligament beam 1, improve the leak tightness of overhead gage 3.Side shield 7 tops are fixed on upper beam the inner of F shape support 5, and side shield 7 bottoms are fixed on lower beam the inner of F shape support 5.
Air baffle 14 is with to catch dirt baffle plate 10 structures identical, form by multiple strip balata belt close-packed arrays, balata belt lower end is triangle, make air baffle 14 and catch dirt baffle plate 10 lower ends formation zig-zags, while running into oarse-grained coal the air baffle 14 of flexible material with catch dirt baffle plate 10 and deform, bulky grain coal is passed through from air baffle 14 and the jagged recess of catching dirt baffle plate 10 all the time, the coal that particle is larger can pass through between two balata belts, reduce the resistance of belt conveyor 11, reduce coal to air baffle 14 and the friction of catching dirt baffle plate 10, improve service life, make air baffle 14 with catch dirt baffle plate 10 lower ends can close contact coal upper surface, avoid forming space, improve windproof and dust-proof effect, and reduce friction, improve service life.
F shape support 5 lower ends, vertical portion are the U-shaped buckle 13 that Open Side Down, U-shaped buckle 13 is fastened on the belt support frame 8 of belt conveyor 11, U-shaped buckle 13 lower ending openings are strained by overbolt 9, not needing increases spud pile for F shape support 5, easy for installation, and U-shaped buckle 13 can slide on belt support frame 8, is convenient to regulate the lengthwise position of F shape support 5, regulate the position of whole dust boot, easy to adjust.
With reference to Fig. 4, longitudinal ligament beam 1 is made up of multistage, each longitudinal ligament beam 1 head and the tail docking, and be fixedly connected with by junction button 12, the horizontal connection end that is fixed on two longitudinal ligament beams 1 of junction button 12, junction button 12 two ends are bolted to connection with two longitudinal ligament beams 1 respectively, regulate the wind speed difference at wall 6 places, in different mines, coal varies in size, the dust boot length difference needing, longitudinal ligament beam 1 can change length by junction button 12, thereby adjusts the length of overhead gage 3 and side shield 7, and longitudinal ligament beam 1 is convenient to transport and installs.
Working process: belt conveyor 11 carries the punch holes 601 of coal through overregulate wall 6, overhead gage 3, side shield 7 and air baffle 14, catch dirt baffle plate 10 and respectively catch and between dirt baffle plate 10, form airtight dustproof space, air baffle 14 contacts with coal with multiple dirt baffle plate 10 bottoms of catching, air baffle 14 stops that high speed is distinguished and admirable, multilayer is caught dirt baffle plate 10 further makes wind speed weaken, and stop that the bulky grain coal being blown afloat makes its belt conveyor 11 that falls back, short grained coal dust is along with the belt conveyor 11 that again falls back that reduces of wind speed, prevent that bulky grain coal from being blown off from belt conveyor 11 by strong wind, the coal that no longer needs artificial frequent cleaning to regulate wall 6 places to pile up, reduce labor strength, prevent from polluting subsurface environment in coal dust entrained air simultaneously, ensure the clean environment in tunnel and the safety in production of mine.
Embodiment 2
With reference to Fig. 5, the difference of the present embodiment and embodiment 1 is to catch the as a whole flexible material of dirt baffle plate 10, bottom is waveform, when on belt conveyor 11, bulky grain coal process is caught dirt baffle plate 10, catching dirt baffle plate 10 can deform, and large coal is passed through from corrugated depressed part, prevent from forming space, improve the protection effect of catching dirt baffle plate 10, air baffle 14 can be overall flexible material, can be to be also made up of multiple strip balata belt close-packed arrays.Other structures are with embodiment 1.
Embodiment 3
With reference to Fig. 6, overhead gage 3 for hard material composition, can adopt plank or iron plate with side shield 7, side shield 7 is directly fixed on the both sides of belt conveyor 11, overhead gage 3 is fixed on the top of side shield 7, and air baffle 14 is flexible material with catching dirt baffle plate 10, and upper end is fixed on overhead gage 3.Overhead gage 3 and side shield 7 can be respectively longitudinal splicing constructions, can regulate length, adapt to different mine needs.
Below be only several embodiment of the present utility model, the utility model can be above combination in any.
The above, it is only preferred embodiment of the present utility model, be not the restriction of the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (8)
1. the dust boot of colliery belt conveyor, comprise belt conveyor (11) and regulate wall (6), belt conveyor (11) is through the punch holes (601) that regulates wall, it is characterized in that: be fixed with horizontal overhead gage (3) in belt conveyor (11) top that regulates wall (6) both sides, belt conveyor (11) both sides are fixed with side shield (7), overhead gage (3) is fixed with an air baffle (14) with the front opening of side shield (7), also be fixed with multiple dirt baffle plates (10) of catching in interval at air baffle (14) rear side, air baffle (14) with catch dirt baffle plate (10) and be flexible material, vertically be fixed on belt conveyor (11) upside.
2. the dust boot of colliery according to claim 1 belt conveyor, is characterized in that: described air baffle (14) is that waveform or zig-zag contact with belt conveyor (11) upper surface with catching dirt baffle plate (10) lower end.
3. the dust boot of colliery according to claim 1 and 2 belt conveyor, is characterized in that: described air baffle (14) with catch dirt baffle plate (10) and form by multiple strip balata belt close-packed arrays, balata belt lower end is triangle.
4. the dust boot of colliery according to claim 1 belt conveyor, it is characterized in that: described overhead gage (3) is flexible material with side shield (7), be fixed on top and the both sides of belt conveyor (11) by fixed mount, air baffle (14) is fixed on fixed mount with the upper end of catching dirt baffle plate (10).
5. the dust boot of colliery according to claim 4 belt conveyor, it is characterized in that: described fixed mount comprises the multiple F shape supports (5) that are fixed on belt conveyor (11) both sides, two crossbeams of F shape support (5) point to belt conveyor (11) one sides, on the entablatrance of F shape support (5), be fixed with support beam, overhead gage (3), catch dirt baffle plate (10) and air baffle (14) is all fixed on support beam, side shield (7) top is fixed on entablatrance the inner of F shape support (5), and bottom is fixed on cross sill the inner of F shape support (5).
6. the dust boot of colliery according to claim 5 belt conveyor, it is characterized in that: described support beam comprises longitudinal ligament beam (1) and cross-tie beam (4), longitudinal ligament beam (1) is fixed on the entablatrance of F shape support (5) along belt conveyor (11) transmission direction, cross-tie beam (4) two ends are separately fixed on the entablatrance of F shape support (5) of both sides, overhead gage (3) is laid on cross-tie beam (4), overhead gage (3) both sides are fixedly connected with longitudinal ligament beam (1), air baffle (14) with catch dirt baffle plate (10) upper end and be fixed on cross-tie beam (4) by baffle plate button (2).
7. the dust boot of colliery according to claim 6 belt conveyor, is characterized in that: described longitudinal ligament beam (1) is made up of multistage, and multistage longitudinal ligament beam (1) head and the tail dock and pass through junction button (12) and fix.
8. according to the dust boot of the colliery belt conveyor described in claim 5 or 6, it is characterized in that: described F shape support (5) lower end is the U-shaped buckle (13) that Open Side Down, U-shaped buckle (13) is fastened on the belt support frame (8) of belt conveyor (11), and U-shaped buckle (13) lower ending opening is by overbolt (9) tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129115.6U CN203753876U (en) | 2014-03-21 | 2014-03-21 | Dustproof cover of mine conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129115.6U CN203753876U (en) | 2014-03-21 | 2014-03-21 | Dustproof cover of mine conveying belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203753876U true CN203753876U (en) | 2014-08-06 |
Family
ID=51249178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420129115.6U Expired - Fee Related CN203753876U (en) | 2014-03-21 | 2014-03-21 | Dustproof cover of mine conveying belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203753876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935736A (en) * | 2014-03-21 | 2014-07-23 | 淄博矿业集团有限责任公司许厂煤矿 | Dust cover for coal mine conveying belt |
| CN109006904A (en) * | 2018-07-09 | 2018-12-18 | 安徽马氏食品有限公司 | A kind of flour agitating roller for bread production |
-
2014
- 2014-03-21 CN CN201420129115.6U patent/CN203753876U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935736A (en) * | 2014-03-21 | 2014-07-23 | 淄博矿业集团有限责任公司许厂煤矿 | Dust cover for coal mine conveying belt |
| CN103935736B (en) * | 2014-03-21 | 2016-08-17 | 淄博矿业集团有限责任公司许厂煤矿 | The dust cover of colliery belt conveyor |
| CN109006904A (en) * | 2018-07-09 | 2018-12-18 | 安徽马氏食品有限公司 | A kind of flour agitating roller for bread production |
| CN109006904B (en) * | 2018-07-09 | 2020-07-03 | 安徽马氏食品有限公司 | Flour stirring roller for bread production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203754036U (en) | Unpowered dust collecting device | |
| CN203753876U (en) | Dustproof cover of mine conveying belt | |
| CN103935736B (en) | The dust cover of colliery belt conveyor | |
| CN202379394U (en) | Dust-settling equipment | |
| KR20150067652A (en) | Double type apparatus for sealing shute side skirt sealing unit | |
| CN210102773U (en) | Coal cleaning device for scraper conveyor tail and scraper conveyor thereof | |
| CN206318350U (en) | Suspension type conveyer is maked somebody a mere figurehead over long distances | |
| KR20150014644A (en) | Assembly of belt conveyer for preventing influx of rain water | |
| CN205673162U (en) | A kind of ore crusher discharging opening sorting unit reducing belt abrasion | |
| CN206276604U (en) | A kind of separator suitable for viscous material | |
| RU2014104148A (en) | INSERT FOR THE ASPHALT BUNKER | |
| CN206053290U (en) | General self-locking close joint docking tiling steel springboard | |
| CN106966107B (en) | A kind of self-cleaning device for belt conveyor | |
| CN206327745U (en) | Container changes a social system Bulk material tank | |
| CN212774360U (en) | Hydraulic support moving frame dust control and guide device for coal mine | |
| CN211109630U (en) | Coal piling prevention device at tail of belt conveyor | |
| CN204210958U (en) | The anti-blocking block clearing coal bunker of integration | |
| CN203877472U (en) | Belt conveyor transferring point V-type buffering chute | |
| CN106378304A (en) | Separating device applicable to viscosity materials | |
| CN102861746B (en) | A kind of dust collection method and device carrying monofilament material equipment | |
| CN209040868U (en) | Coal working face branch bridge joint cash device | |
| CN201932675U (en) | Full-suspension conveyor roller device | |
| CN206645424U (en) | Belt feeder hydraulic pressure cuts cash device | |
| CN204751393U (en) | Clean system between mineral aggregate separation delivery wagon | |
| CN206174998U (en) | Material conveying system is thrown to fly ash and waste rock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |