CN105668120A - Long-distance belt conveyor for tunnel boring - Google Patents

Long-distance belt conveyor for tunnel boring Download PDF

Info

Publication number
CN105668120A
CN105668120A CN201610158869.8A CN201610158869A CN105668120A CN 105668120 A CN105668120 A CN 105668120A CN 201610158869 A CN201610158869 A CN 201610158869A CN 105668120 A CN105668120 A CN 105668120A
Authority
CN
China
Prior art keywords
head
conveyer
slag
conveyer belt
belt
Prior art date
Application number
CN201610158869.8A
Other languages
Chinese (zh)
Other versions
CN105668120B (en
Inventor
廖纯德
曹彦斌
张晓华
Original Assignee
衡阳运输机械有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 衡阳运输机械有限公司 filed Critical 衡阳运输机械有限公司
Priority to CN201610158869.8A priority Critical patent/CN105668120B/en
Publication of CN105668120A publication Critical patent/CN105668120A/en
Application granted granted Critical
Publication of CN105668120B publication Critical patent/CN105668120B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/22Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising a series of co-operating units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/10Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
    • B65G21/14Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of length or configuration of load-carrier or traction element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G45/00Lubricating, cleaning, or clearing devices
    • B65G45/10Cleaning devices
    • B65G45/24Cleaning devices comprising plural diverse cleaning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02Devices for feeding articles or materials to conveyors
    • B65G47/16Devices for feeding articles or materials to conveyors for feeding materials in bulk
    • B65G47/18Arrangements or applications of hoppers or chutes

Abstract

The invention discloses a long-distance belt conveyor for tunnel boring. The long-distance belt conveyor comprises a tail residue collection device arranged on a tunnel boring machine (TBM) trolley, a head residue outputting device arranged at the end far away from the tail residue collection device and a rubber belt storing and releasing device arranged on the return section of the head residue outputting device. When the long-distance belt conveyor works, a tail conveyor belt mechanism conveys residues of a residue discharge device of a tunnel boring machine to a head conveyor belt mechanism and then conveys the residues to a residue conveying device for completing the conveyance work of the residues. The long-distance belt conveyor has the advantages of being low in operation cost, high in operation efficiency and high in applicability.

Description

Tunnel driving long-distance belt conveyer
Technical field
The present invention relates to endless belt conveyor field, in particular to a kind of tunnel driving long-distance belt conveyer.
Background technology
Along with the rapid growth of the construction projects such as domestic city track traffic, railway, highway, water conservancy, municipal administration, constructing tunnel engineering amount is increasing, long large tunnel TBM is constructed, due to tunnel length, diameter is big, operating environment is severe, and require that a rate of advance is fast, level of automation height, that the unit time goes out the quantity of slag is big; The current domestic TBM constructing tunnel system of mucking haulage has following a few class: electromobile traction rail travel system, stringing formula electric locomotive rail travel system, large-scale dump truck haulage system, oil engine rail travel system etc.; There is the shortcomings such as work-ing life is short, failure rate height, efficiency are low, transportation cost height, tractive force are not enough in battery of battery-driven truck; Stringing formula electric locomotive need to have stringing facility, underaction, and adaptability is not strong; Large-scale dump truck haulage system is seriously polluted, and ability of slagging tap is limited; Diesel locomotive heavy contamination, has higher requirements to ventilation in tunnel.
Summary of the invention
It is an object of the invention to the above-mentioned deficiency for prior art and defect, it is provided that a kind of efficient, tunnel driving long-distance belt conveyer that suitability is strong, to solve the problem.
Technical problem solved by the invention can realize by the following technical solutions:
Tunnel driving long-distance belt conveyer, it is characterised in that, comprising:
It is arranged on the afterbody on TBM development machine chassis to receive slag device, be arranged on away from head deslagging device, the adhesive tape storage being arranged on the reverse-running section of described head deslagging device and releasing device that described afterbody receives slag device one end;
Described afterbody is received slag device and is comprised:
The tailstock being arranged on described TBM development machine chassis,
It is arranged on described tailstock and it is positioned at and lead material chute device below the slag device of TBM development machine,
The tail section conveyer belt mechanism below material chute device is led described in being arranged on;
Described head deslagging device comprises:
Head mount,
The head conveyer belt mechanism being arranged on described head mount,
Drive the drive unit that described head conveyer belt mechanism works,
It is arranged on the material slag e Foerderanlage below the slag output end of described head conveyer belt mechanism;
Described adhesive tape stores and the two ends of releasing device are connected with the reverse-running section of described tail section conveyer belt mechanism and described head conveyer belt mechanism respectively, stores and release to be realized by adhesive tape;
During work, described tail section conveyer belt mechanism is transported to described material slag e Foerderanlage after the material slag of the slag device of TBM development machine is delivered to described head conveyer belt mechanism again, it is achieved to the work of mucking haulage of material slag.
In a preferred embodiment of the invention, at least it is provided with a supply between described tail section conveyer belt mechanism and the transportation section of described head conveyer belt mechanism and extends support e Foerderanlage.
In a preferred embodiment of the invention, described supply extends support e Foerderanlage is the rubber conveyer being arranged on side wall.
In a preferred embodiment of the invention, described adhesive tape stores and comprises with releasing device:
Support;
Arranging on the bracket to guide pulley, guide pulley is connected by one respectively with the reverse-running section of described tail section conveyer belt mechanism and described head conveyer belt mechanism;
Some fixing changed course cylinder on the bracket is set;
Mobile setting travelling dolly on the bracket, being provided with the travelling changed course cylinder that some and described fixing changed course cylinder is suitable on described travelling dolly, the reverse-running section between guide pulley successively interleaved is walked around described some fixing changed course cylinders and some travelling changed course cylinders by described one;
With the winch take-up device that described travelling dolly is connected.
In a preferred embodiment of the invention, described support is also provided with some to described one the reverse-running section between guide pulley play support effect entrust device.
In a preferred embodiment of the invention, the reverse-running section front end of described head conveyer belt mechanism is also provided with the high-pressure water flushing device rinsed by adhesive tape.
In a preferred embodiment of the invention, the reverse-running section front end of described head conveyer belt mechanism is also provided with swabbing pig.
In a preferred embodiment of the invention, described drive unit comprises the drive-motor being arranged on described head mount by floating regulating device, and the output terminal of described drive-motor is connected by the transmission cylinder of speed reduction unit with described head conveyer belt mechanism.
In a preferred embodiment of the invention, described material slag e Foerderanlage is rubber conveyer.
Owing to have employed technical scheme as above, the useful effect of the present invention is:
1, cheap running cost and efficiently operational efficiency, supporting TBM development machine can the tunnel driving engineer operation of high strength, excessive risk, high pollution, it is transformed into green construction pattern comparatively safe, efficient, meet tunnel construction fast, high-quality, efficient, safety, environmental protection, requirement that integration degree is high, make the TBM equipment can operation continuously, improve system works efficiency, greatly shorten the constructing tunnel duration.
2, realize and all fronts centralized Control of other production units and interlocking, concentrate and transfer roller is carried out control & monitor, equipment can automated operation, construction management is simple, decreases manpower and reduces labour intensity.
3, suitability is strong, can be used for various diameter specifications constructing tunnel, and can transport when bigger inclination angle (upper fortune can reach 16 °, and lower fortune can reach 13 °);
4, Device-General parts easy installation and removal, is convenient to the utilization again of universal component.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure principle chart of an embodiment of the present invention.
Fig. 2 is the structural representation of the afterbody receipts slag device of an embodiment of the present invention.
Fig. 3 is the structural representation of the head deslagging device of an embodiment of the present invention.
Fig. 4 is that the A of Fig. 3 is to structural representation.
The adhesive tape that Fig. 5 is an embodiment of the present invention stores the structural representation with releasing device.
Fig. 6 is the radial section structural representation of the supply extension support e Foerderanlage of an embodiment of the present invention.
Embodiment
In order to the present invention is realized technique means, creation characteristic, reach object and effect is easy to understand, set forth the present invention below further.
See shown in Fig. 1 to Fig. 6, tunnel driving long-distance belt conveyer 1000 comprises afterbody and receives slag device 100, head deslagging device 200, adhesive tape storage and releasing device 300, in order to make adhesive tape constantly can feed forward extension, in the present embodiment, also comprising some supplies and extend support e Foerderanlage 400, supply extends support e Foerderanlage 400 and is arranged between afterbody receipts slag device 100 and the transportation section 4 of head deslagging device 200.
Shown in composition graphs 2, afterbody is received slag device 100 and is arranged on TBM development machine chassis 610, afterbody is received slag device 100 and is comprised tailstock 110, leads material chute device 120 and tail section conveyer belt mechanism 130, tailstock 110 is arranged on TBM development machine chassis 610, lead material chute device 120 be arranged on tailstock 110 and be positioned at below the slag device 620 of TBM development machine 600, the short conveyor drive that slag device 620 carries for TBM development machine 600. Tail section conveyer belt mechanism 130 is arranged on leads below material chute device 120, it comprises the tail end bending roller 131 being arranged on tailstock 110 and the tail end tape carrier 1 walking around tail end bending roller 131, tail end tape carrier 1 is positioned at leads below material chute device 120, for accepting material slag.
Shown in composition graphs 3 and Fig. 4, head deslagging device 200 is arranged on receives slag device 100 one end away from afterbody, and head deslagging device 200 comprises head mount 210, head conveyer belt mechanism 220, drive unit 230 and material slag e Foerderanlage 240. Head conveyer belt mechanism 220 is arranged on head mount 210, and head conveyer belt mechanism 220 comprises the head bending roller 221 being arranged on head mount 210 front end and the head tape carrier 2 walking around head bending roller 221. Drive unit 230 comprises the drive-motor 232 being arranged on head mount 210 by floating regulating device 231, the output terminal of drive-motor 232 is connected with transmission cylinder 234 by tubular shaft speed reduction unit 233, in order to improve transport capacity, drive unit 230 is one right, is disposed on respectively on head mount 210. Material slag e Foerderanlage 240 is arranged on below the slag output end 222 of head conveyer belt mechanism 220, and material slag e Foerderanlage 240 is rubber conveyer, and material slag e Foerderanlage 240 realizes the work of mucking haulage to material slag. Head mount 210 in the present embodiment is set to tilt support so that head tape carrier 2 exists certain gradient, transport when applicable bigger inclination angle.
Owing to the material of conveying contains a lot of moisture; sometimes material becomes slurry shape; the adhesivity of material is very strong; and this transfer roller should not establish adhesive tape turning device; therefore for ensureing the normal operation of long distance; protecting the equipment such as adhesive tape, carrying roller, cylinder, the reverse-running section front end of the head conveyer belt mechanism 220 in the present embodiment is also provided with the high-pressure water flushing device 250 rinsed by adhesive tape. In order to clear up material slag further, it is also possible to be provided with polymer scraper swabbing pig (comprising H type and P type), dead band polymer swabbing pig on the reverse-running section of head conveyer belt mechanism 220.
Shown in composition graphs 5, adhesive tape stores and releasing device 300 is arranged on the reverse-running section 5 of head deslagging device 200, adhesive tape stores and releasing device 300 comprises support 310, the top, one end receiving slag device 100 near afterbody at support 310 is provided with one couple of guide pulley 320a, 320b, and guide pulley 320a, 320b are connected by one respectively with the reverse-running section of tail section conveyer belt mechanism 130 and head conveyer belt mechanism 220.Near one, the lower position of guide pulley 320a, 320b is provided with four groups of fixing changed course cylinders 330 at support 310, travelling dolly 340 it is provided with near one end of head deslagging device 200 at support 310, support 310 arranges the slide rail 311 coordinated with travelling dolly 340, travelling dolly 340 is provided with four groups of travelling changed course cylinders 350 suitable with fixing changed course cylinder 330. Reverse-running section 3 between one couple of guide pulley 320a, 320b successively interleaved walk around four groups of fixing changed course cylinders 330 and four groups of travelling changed course cylinders 350. In order to ensure the sag of adhesive tape, the support 310 in the present embodiment is also provided with some reverse-running section 3 between a couple of guide pulley 320a, 320b is play support effect entrust device 360. Travelling dolly 340 is connected with a winch take-up device 370, and the traction rope 371 of winch take-up device 370 is connected in travelling dolly 340 tail end.
Adhesive tape stores and releasing device 300 is disposable stores long 600m adhesive tape. Along with the driving of TBM development machine 600, winch take-up device 370 unwrapping wire so that travelling dolly 340 moves to TBM development machine 600 direction, is stored in four groups and fixes changed course cylinder 330 and four groups of constantly outwards releases of the reverse-running section 3 between changed course cylinder 350 of moving about. After releasing, again strain the traction rope 371 of winch take-up device 370 so that adhesive tape normal operation, it is achieved the storage of adhesive tape and release.
Shown in composition graphs 6, it is the rubber conveyer being arranged on side wall 700 by erecting frame 710 that supply extends support e Foerderanlage 400.
During work, when tail section conveyer belt mechanism 130 is transported to material slag e Foerderanlage 240 again after the material slag of the slag device 620 of TBM development machine 600 is delivered to head conveyer belt mechanism 220, it is achieved to the work of mucking haulage of material slag.
More than show and describe the ultimate principle of the present invention and the advantage of main characteristic sum the present invention. The technician of the industry should understand; the present invention is not restricted to the described embodiments; the principle that the present invention is just described described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention. The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (9)

1. tunnel driving long-distance belt conveyer, it is characterised in that, comprising:
It is arranged on the afterbody on TBM development machine chassis to receive slag device, be arranged on away from head deslagging device, the adhesive tape storage being arranged on the reverse-running section of described head deslagging device and releasing device that described afterbody receives slag device one end;
Described afterbody is received slag device and is comprised:
The tailstock being arranged on described TBM development machine chassis,
It is arranged on described tailstock and it is positioned at and lead material chute device below the slag device of TBM development machine,
The tail section conveyer belt mechanism below material chute device is led described in being arranged on;
Described head deslagging device comprises:
Head mount,
The head conveyer belt mechanism being arranged on described head mount,
Drive the drive unit that described head conveyer belt mechanism works,
It is arranged on the material slag e Foerderanlage below the slag output end of described head conveyer belt mechanism;
Described adhesive tape stores and the two ends of releasing device are connected with the reverse-running section of described tail section conveyer belt mechanism and described head conveyer belt mechanism respectively, stores and release to be realized by adhesive tape;
During work, described tail section conveyer belt mechanism is transported to described material slag e Foerderanlage after the material slag of the slag device of TBM development machine is delivered to described head conveyer belt mechanism again, it is achieved to the work of mucking haulage of material slag.
2. tunnel driving long-distance belt conveyer as claimed in claim 1, it is characterised in that, at least it is provided with a supply between described tail section conveyer belt mechanism and the transportation section of described head conveyer belt mechanism and extends support e Foerderanlage.
3. tunnel driving long-distance belt conveyer as claimed in claim 2, it is characterised in that, it is the rubber conveyer being arranged on side wall that described supply extends support e Foerderanlage.
4. tunnel driving long-distance belt conveyer as claimed in claim 1, it is characterised in that, described adhesive tape stores and releasing device comprises:
Support;
Arranging on the bracket to guide pulley, guide pulley is connected by one respectively with the reverse-running section of described tail section conveyer belt mechanism and described head conveyer belt mechanism;
Some fixing changed course cylinder on the bracket is set;
Mobile setting travelling dolly on the bracket, being provided with the travelling changed course cylinder that some and described fixing changed course cylinder is suitable on described travelling dolly, the reverse-running section between guide pulley successively interleaved is walked around described some fixing changed course cylinders and some travelling changed course cylinders by described one;
With the winch take-up device that described travelling dolly is connected.
5. tunnel driving long-distance belt conveyer as claimed in claim 4, it is characterised in that, described support is also provided with some to described one the reverse-running section between guide pulley play support effect entrust device.
6. tunnel driving long-distance belt conveyer as claimed in claim 1, it is characterised in that, the reverse-running section front end of described head conveyer belt mechanism is also provided with the high-pressure water flushing device rinsed by adhesive tape.
7. tunnel driving long-distance belt conveyer as claimed in claim 6, it is characterised in that, the reverse-running section front end of described head conveyer belt mechanism is also provided with swabbing pig.
8. tunnel driving long-distance belt conveyer as claimed in claim 1, it is characterized in that, described drive unit comprises the drive-motor being arranged on described head mount by floating regulating device, and the output terminal of described drive-motor is connected by the transmission cylinder of speed reduction unit with described head conveyer belt mechanism.
9. tunnel driving long-distance belt conveyer as claimed in claim 1, it is characterised in that, described material slag e Foerderanlage is rubber conveyer.
CN201610158869.8A 2016-03-21 2016-03-21 Tunnel piercing long-distance belt conveyer CN105668120B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610158869.8A CN105668120B (en) 2016-03-21 2016-03-21 Tunnel piercing long-distance belt conveyer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610158869.8A CN105668120B (en) 2016-03-21 2016-03-21 Tunnel piercing long-distance belt conveyer

Publications (2)

Publication Number Publication Date
CN105668120A true CN105668120A (en) 2016-06-15
CN105668120B CN105668120B (en) 2018-06-05

Family

ID=56310978

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610158869.8A CN105668120B (en) 2016-03-21 2016-03-21 Tunnel piercing long-distance belt conveyer

Country Status (1)

Country Link
CN (1) CN105668120B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU451860A1 (en) * 1972-03-07 1974-11-30 Всесоюзный Научно-Исследовательский, Проектно-Конструкторский Угольный Институт Conveyor Handler
JPH08151900A (en) * 1994-11-29 1996-06-11 Toyo Constr Co Ltd Mobile conveying method and mobile conveying device
CN2737739Y (en) * 2004-09-28 2005-11-02 张磊 Coal mine underwell driving belt conveyer for transporting waste rock
CN2758479Y (en) * 2004-12-14 2006-02-15 煤炭科学研究总院上海分院 Machine tail structure of synchronous conveyer
CN102328820A (en) * 2011-05-30 2012-01-25 泰安力博机电科技有限公司 Environment-friendly sweeping device for cleaning and blow-drying of conveyer belt
CN202864284U (en) * 2012-10-09 2013-04-10 秦皇岛天业通联重工股份有限公司 Belt storage system
CN204225886U (en) * 2014-11-15 2015-03-25 辽宁鑫众重工装备有限公司 Development machine extension type elevating conveyor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU451860A1 (en) * 1972-03-07 1974-11-30 Всесоюзный Научно-Исследовательский, Проектно-Конструкторский Угольный Институт Conveyor Handler
JPH08151900A (en) * 1994-11-29 1996-06-11 Toyo Constr Co Ltd Mobile conveying method and mobile conveying device
CN2737739Y (en) * 2004-09-28 2005-11-02 张磊 Coal mine underwell driving belt conveyer for transporting waste rock
CN2758479Y (en) * 2004-12-14 2006-02-15 煤炭科学研究总院上海分院 Machine tail structure of synchronous conveyer
CN102328820A (en) * 2011-05-30 2012-01-25 泰安力博机电科技有限公司 Environment-friendly sweeping device for cleaning and blow-drying of conveyer belt
CN202864284U (en) * 2012-10-09 2013-04-10 秦皇岛天业通联重工股份有限公司 Belt storage system
CN204225886U (en) * 2014-11-15 2015-03-25 辽宁鑫众重工装备有限公司 Development machine extension type elevating conveyor

Also Published As

Publication number Publication date
CN105668120B (en) 2018-06-05

Similar Documents

Publication Publication Date Title
US8985704B2 (en) Continuous-extraction mining system
CN104564050B (en) Equipment for heading and anchoring parallel operation construction
CN102335957B (en) Concrete building block cutting device
AU2003204714B2 (en) Mine Conveying System
CN101200185B (en) Device for storing transportation means of aerial cableway
CN103711499A (en) Shield tunneling machine split starting construction method
CN106194060B (en) A kind of Cabon-fibre continuous sucker rod operating vehicles
CN105626088B (en) T-shaped bored tunnel shield machine is gone into the well shift method
CN105383960A (en) Unilateral arm-folding type spiral material leveling machine
CN103303692B (en) A kind of automation both arms frame mixed-windrowed locomotive efficiently
CN103726421A (en) Height and span adjustable track paver for metro construction
CN104405421A (en) Minimum-altitude duct piece conveying system applicable to minitype shield machine
CN201439717U (en) Back-up traveling type crushing and transfer continuous transportation device of tunneling and bolting machine
CN102514876B (en) Method for rapidly replacing adhesive tape
CN206703269U (en) A kind of resilient support block production line
CN101858221B (en) Continuous belt mucking method suitable for drilling and blasting tunnel construction and application system and equipment thereof
US20160186566A1 (en) Apparatus, system and method for material extraction in underground hard rock mining
CN101434346A (en) Scraper bucket type transloader
CN203473974U (en) Efficient automated double-arm-rack blended stacking machine
JP5339895B2 (en) Concrete transportation equipment
CN107513907A (en) A kind of subway solid concrete roabed concreting conveyer and its application method
CN105800342B (en) A kind of mobile continuous feeder of rubber-tyred
CN104988842B (en) Tunnel, highway cover plate laying apparatus
CN202864283U (en) Band type belt conveyor
CN106638272A (en) Self-moving type vehicular bridge for striding over belt conveyors

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant