CN105270882A - Integrated material storage and pneumatic exhaust method and corresponding device - Google Patents

Integrated material storage and pneumatic exhaust method and corresponding device Download PDF

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Publication number
CN105270882A
CN105270882A CN201510284612.2A CN201510284612A CN105270882A CN 105270882 A CN105270882 A CN 105270882A CN 201510284612 A CN201510284612 A CN 201510284612A CN 105270882 A CN105270882 A CN 105270882A
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storehouse
section steel
integral type
side channel
stores
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CN201510284612.2A
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CN105270882B (en
Inventor
张宗涛
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Kunming China Railway Large Maintenance Machinery Co Ltd
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Kunming China Railway Large Maintenance Machinery Co Ltd
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Abstract

An integrated material storage and pneumatic exhaust method comprises the steps that firstly, materials are conveyed to pipeline (8) of a material entering bin in the direction opposite to the vehicle operation advancing direction; secondly, an electrical control system (7) is started, and control over an air compressor (9), an exhaust direction selecting conveying belt (5) and a material conveying device (4) is achieved; thirdly, when the materials are accumulated to the 1/4-1/3 of the volume of a storage device, the air compressor (9) is started; fourthly, the material conveying device (4) is started; and fifthly, after the operation is finished, the material conveying device (4), the exhaust direction selecting conveying belt (5) and a vacuum exhaust device (6) are sequentially stopped. An integrated material storage and pneumatic exhaust device comprises a bin bottom structural piece (1). The upper portion of the bin bottom structural piece (1) is connected with a bin peripheral structural piece (2). The upper portion of the bin peripheral structural piece (2) is connected with a bin top (3). The material conveying device (4) is arranged above the bin bottom structural piece (1). The invention provides the integrated material storage and pneumatic exhaust device, and accordingly, the problem of leakage and pollution of materials to the outside environment can be effectively reduced.

Description

Integral type material stores and strength discharge method and related device
Technical field
The present invention relates to a kind of integral type material to store and strength discharge method and related device, belong to railway machinery design and manufaction technical field.
Background technology
For feedway, in railway machinery, mostly adopt mechanical mode of movement as the feedway of crawler-mounted feedway or hopper-type, above two kinds of devices are mainly used in storage and the transport of railroad bed railway ballast, and for hot materials such as the iron filings of rail milling turnning and milling mill, the abrasive dusts of rail grinding machine polishing, above two kinds of devices are neither applicable.Application number be 201420443275.8 Chinese utility model patent disclose a kind of iron filings feedway, which employs a kind of iron filings to rail milling and store the mode of separating with discharge of materials and processing, effectively solving outside the storage problem of iron filings in operation process, effectively overcome firm milling produce hot iron filings burning to tapping equipment load-transfer device, but its complex structure, take up space huge, discharge sites is limited, manufacturing cost is higher.
Summary of the invention
The invention provides a kind of integral type material to store and strength discharge method and corresponding device.
First aspect present invention provides a kind of integral type material to store and strength tapping equipment, it comprises storehouse bear building-up component, storehouse week framing member is connected above this storehouse bear building-up component, this storehouse week framing member top connection Cang Ding, described storehouse bear building-up component is also equipped with device for transporting objects, emission direction is housed below this device for transporting objects and selects load-transfer device, this emission direction selects load-transfer device end to connect vacuum exhauster, described device for transporting objects and emission direction select load-transfer device to be all connected electric control system, described vacuum exhauster connects Air compressor, described Cang Ding also connects feed pipe.
Preferably, described storehouse bear building-up component comprises left side channel-section steel, right side channel-section steel, front side channel-section steel and rear side channel-section steel, and described left side channel-section steel, right side channel-section steel, front side channel-section steel and rear side channel-section steel are welded to form framed structure.
It is further preferred that be also equipped with at least one group in described framed structure to strengthen channel-section steel.
It is further preferred that welding gusset in the channel-section steel of described left side, thus make described left side channel-section steel have good rigidity, the load that top is applied by material and structure can be born.
It is further preferred that welding gusset in the channel-section steel of described right side.
Preferably, described storehouse week framing member comprises storehouse front wall and Cang Houqiang, and this storehouse front wall and Cang Houqiang lay respectively at both sides above the bear building-up component of described storehouse, is connected behind described storehouse front wall and storehouse between wall by side wall, thus composition storehouse week framing member.
Preferably, described storehouse front wall comprises access door between storehouse, stores and strength tapping equipment to overhaul described integral type material.
Preferably, between described storehouse, access door comprises access door panel, this access door lower panels connection hinge, thus is connected to the base portion of described storehouse week framing member.
Preferably, above described access door panel, self lighting type hasp is housed, thus is connected closed for the base portion of all framing members of this access door panel and described storehouse.
Preferably, described access door panels outside also comprises hand hole box, and this hand hole box is recessed inside described access door panel, opens to operate described access door panel or closes.
Preferably, access door framework is connected inside described access door panel.
Preferably, described Cang Ding comprises ceiling, and this ceiling is connected to the top of described storehouse week framing member.
Preferably, comprise at least one opening above described ceiling, this upper opening portion connects screen modules.
It is further preferred that connect cover plate above described screen modules, this cover plate is that layer enters formula welded structure, forms exhausr port, is convenient to air circulation, and ensure filter effect between every layer of cover plate.
Preferably, described device for transporting objects comprises drive motor, the mouth of this drive motor connects screw shaft, this screw shaft comprises helicallobe so that convey materials, mount holder is comprised bottom screw shaft, this mount holder connects conveyer base plate, spiral protect-ing frame structure is also equipped with on this conveyer base plate top, this spiral protect-ing frame structure and described conveyer base plate are wrapped in outside described screw shaft, the conveyer base plate of described screw shaft end comprises blanking port, the material being transported to screw shaft end via helicallobe falls into institute's emission direction through this blanking port and selects load-transfer device and then enter vacuum exhauster, described screw shaft end is also equipped with screw shaft end support seat.
It is further preferred that device for transporting objects described at least one group is contained between all framing members of described storehouse bear building-up component and described storehouse, to improve transport efficiency.
Preferably, described emission direction selects load-transfer device to comprise load-transfer device, this load-transfer device coordinates with drive roll and follower rollers, this follower rollers also connects tightening regulator, to regulate the degree of tension of load-transfer device, described drive roll and follower rollers are inlaid in conveyor belt frame, and described drive roll connects drive motor.
It is further preferred that be also connected with at least one carrying roller below described load-transfer device, to ensure the ride comfort of load-transfer device.
Preferably, emission direction selection load-transfer device is equipped with in the below of described device for transporting objects end, and described emission direction selects the load-transfer device sense of motion of load-transfer device and the axial vertical of described device for transporting objects.
Preferably, described vacuum exhauster comprises aggregate bin, striker plate is comprised above this aggregate bin, vacuum generator is connected below described aggregate bin, connect material casting pipe below this vacuum generator, thus under the suction function that vacuum generator produces, the material in described aggregate bin is entered in material casting pipe.
Preferably, described striker plate is inlaid in the bear building-up component of described storehouse.
Preferably, described ceiling connection material enters the pipeline between storehouse, stores and strength tapping equipment so that material enters described integral type material via this material pipeline entered between storehouse.
Preferably, described storehouse bear building-up component is placed on the vehicle frame of Operation Van.
Integral type material provided by the invention stores and the mode of operation of strength tapping equipment is: in milling machine operation process, the material got off by milling is delivered to material in time and is entered pipeline place between storehouse, enter in the storage of described integral type material and strength tapping equipment, material falls into material memory space due to the blocking-up of wall after gravity and storehouse, the air-flow that material enters the pipeline between storehouse between storehouse after filtration screen component drain into air by exhausr port after filtering, the material carried in air-flow is stopped by net-filter assembly and falls in all framing members in storehouse.To select to discharge on the left of car body, after when between storehouse, material is stored into certain amount, start electric control system, first select to start Air compressor, select the vacuum exhauster on the left of car body is run, control to start emission direction afterwards and select load-transfer device, convey materials on the left of car body, finally start device for transporting objects and its dextrad is rotated, material now in storehouse is run under the effect of device for transporting objects to the direction of wall behind storehouse by storehouse front wall, dropping down onto emission direction when material is transported to auger loader base plate blanking port place selects on load-transfer device, the emission direction of running selects load-transfer device material to be at the uniform velocity transported to the aggregate bin place of vacuum exhauster, under the effect of vacuum generator, the discharge pipe that material in aggregate bin makes along metal bellow is rapidly thrown to target discharge point.So far, the storage of material and discharge end cycle, after all materials are emptying, closure material conveying device, emission direction select load-transfer device and vacuum exhauster successively.
Integral type material provided by the invention stores and strength tapping equipment, it can realize the iron filings produced railway operation, the cinder that abrasive dust and coal fortune special line produce, the storage of the various materials such as the grains of sand on desert railway rail and transportation function, effectively ensure that material externally environment leakage and the problem polluted, it adopts the Pneumatic Conveying Technology of vacuum generator principle to discharge material, instead of application number for left and right sides that a kind of iron filings feedway disclosed in the Chinese utility model patent of 201420443275.8 adopts row belting, while reduction manufacturing cost, make the selection in discharge of materials place more flexible, whole apparatus structure is compact simultaneously, space requirement can be reduced, be convenient to transfer assembling, also have and maintain advantage easily, storage and the discharge operating mode of the real-time material on track-mounted machinery can be widely used in.
Second aspect present invention provides a kind of integral type material to store and strength discharge method, and it comprises
A. material is entered pipeline between storehouse along the material that is oppositely delivered to of vehicle operation direct of travel;
B. start electric control system, realize the control to Air compressor, emission direction selection load-transfer device, device for transporting objects;
C. when build up of material is to time a certain amount of, start Air compressor, make the port of the nearly aggregate bin of the vacuum generator of vacuum exhauster be in negative pressure state;
D. device for transporting objects is started, material via device for transporting objects, emission direction select load-transfer device enter vacuum exhauster aggregate bin and under the effect of vacuum exhauster, the feed end of vacuum exhauster produces negative pressure, material is sucked the base pipe of vacuum exhauster by aggregate bin, the discharge end of vacuum exhauster produces malleation, and the material press-in material casting pipe entering the base pipe of vacuum exhauster is expelled to appointed place;
E., after operation, closure material conveying device, emission direction select load-transfer device and vacuum exhauster successively.
Above-mentioned steps is carried out successively according to the order of a, b, c, d, e.
Preferably, integral type material described in first aspect present invention is adopted to store and strength tapping equipment.
Accompanying drawing explanation
Fig. 1 is the integrally-built block diagram of a preferred embodiment of integral type material provided by the invention storage and strength tapping equipment;
Fig. 2 is cutaway view embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of storehouse bear building-up component embodiment illustrated in fig. 1;
Fig. 4 is the structural representation of access door between storehouse embodiment illustrated in fig. 1;
Fig. 5 is storehouse roof construction schematic diagram embodiment illustrated in fig. 1;
Fig. 6 is the structural representation of device for transporting objects embodiment illustrated in fig. 1;
Fig. 7 is the structural representation that emission direction embodiment illustrated in fig. 1 selects load-transfer device;
Fig. 8 is the structural representation of vacuum exhauster embodiment illustrated in fig. 1;
Fig. 9 is the embodiment illustrated in fig. 1 structural representation containing electric control system and Air compressor assembly;
The implication of the figure notation representative in Fig. 1-Fig. 9 is:
4 device for transporting objects are pushed up in all framing member 3 storehouses, 1 bear building-up component 2 storehouse, storehouse
5 emission directions select load-transfer device 6 vacuum exhauster 7 electric control system
Channel-section steel on the right side of channel-section steel 12 on the left of 8 feed pipe 9 Air compressor 10 vehicle frames 11
Channel-section steel 15 channel-section steel 16 gusset on rear side of channel-section steel 14 on front side of in the of 13
Between 21 Hou Qiang211 storehouse, storehouse front wall 22 storehouses, door face board repaiied by access door 2111
2115 hinge 2114 self lighting type hasp 2113 hand hole box 2112 access door frameworks
31 ceiling 32 screen modules 33 exhausr ports
41 drive motor 42 screw shaft 43 helicallobe 44 spiral protect-ing frame structure
45 conveyer base plate 46 blanking port 47 mount holder 48 screw shaft end support seats
51 drive motor 52 drive roll 53 follower rollers 54 load-transfer devices
55 tightening regulator 56 conveyor belt frame 57 carrying rollers
61 striker plate 62 aggregate bin 63 vacuum generator 64 material casting pipes
C Operation Van of B discharge of materials district, A material memory space travel direction.
Detailed description of the invention
embodiment 1.1, as shown in Fig. 1-Fig. 9, a kind of integral type material stores and strength tapping equipment, it comprises storehouse bear building-up component 1, storehouse week framing member 2 is connected above this storehouse bear building-up component 1, this top, storehouse week connection storehouse, framing member 2 top 3, above storehouse bear building-up component 1, device for transporting objects 4 is also housed, emission direction is housed below this device for transporting objects 4 and selects load-transfer device 5, this emission direction selects load-transfer device 5 end to connect vacuum exhauster 6, device for transporting objects 4 and emission direction select load-transfer device 5 to be all connected electric control system 7, vacuum exhauster 6 connects Air compressor 9, top, storehouse 3 also connects feed pipe 8, storehouse bear building-up component 1 comprises left side channel-section steel 11, right side channel-section steel 12, front side channel-section steel 13 and rear side channel-section steel 14, described left side channel-section steel 11, right side channel-section steel 12, front side channel-section steel 13 and rear side channel-section steel 14 are welded to form framed structure, also be equipped with two groups in this framed structure and strengthen channel-section steel 15, welding gusset 16 in left side channel-section steel 11, thus make described left side channel-section steel 11 have good rigidity, the load that top is applied by material and structure can be born, welding gusset 16 in right side channel-section steel 12.
In the present embodiment, storehouse week framing member 2 comprises wall 22 behind storehouse front wall 21 and storehouse, behind this storehouse front wall 21 and storehouse, wall 22 lays respectively at both sides above storehouse bear building-up component 1, connected by side wall between wall 22 behind storehouse front wall 21 and storehouse, thus composition storehouse week framing member 2, storehouse front wall 21 comprises access door 211 between storehouse, to overhaul described integral type material to store and strength tapping equipment, between storehouse, access door 211 comprises access door panel 2111, connection hinge 2115 below this access door panel 2111, thus be connected to the base portion of described storehouse week framing member 2, self lighting type hasp 2114 is housed above access door panel 2111, thus be connected closed for the base portion of all framing members 2 of this access door panel 2111 and described storehouse, hand hole box 2113 is also comprised outside access door panel 2111, this hand hole box 2113 is recessed inside described access door panel 2111, to operate described access door panel 2111 to open or close, access door framework 2112 is connected inside access door panel 2111.
In the present embodiment, top, storehouse 3 comprises ceiling 31, this ceiling 31 is connected to the top of described storehouse week framing member 2, two openings are comprised above ceiling 31, this upper opening portion connects screen modules 32, cover plate is connected above screen modules 32, this cover plate is that layer enters formula welded structure, exhausr port 33 is formed between every layer of cover plate, be convenient to air circulation, and ensureing filter effect, ceiling 31 connects material and enters pipeline 8 between storehouse, stores and strength tapping equipment so that material enters described integral type material via this material pipeline 8 entered between storehouse.
In the present embodiment, device for transporting objects 4 comprises drive motor 41, the mouth of this drive motor 41 connects screw shaft 42, this screw shaft 42 comprises helicallobe 43 so that convey materials, mount holder 47 is comprised bottom screw shaft 42, this mount holder 47 connects conveyer base plate 45, spiral protect-ing frame structure 44 is also equipped with on this conveyer base plate 45 top, this spiral protect-ing frame structure 44 is wrapped in outside described screw shaft 42 with described conveyer base plate 45, the conveyer base plate 45 of described screw shaft 42 end comprises blanking port 46, the material being transported to screw shaft 42 end via helicallobe 43 falls into institute's emission direction through this blanking port 46 and selects load-transfer device 5 and then enter vacuum exhauster 6, described screw shaft 42 end is also equipped with screw shaft end support seat 48, device for transporting objects 4 is contained between all framing members 2 of described storehouse bear building-up component 1 and described storehouse, to improve transport efficiency.
In the present embodiment, emission direction selects load-transfer device 5 to comprise load-transfer device 54, this load-transfer device 54 coordinates with drive roll 52 and follower rollers 53, this follower rollers 53 also connects tightening regulator 55, to regulate the degree of tension of load-transfer device 54, described drive roll 52 and follower rollers 53 are inlaid in conveyor belt frame 56, described drive roll 52 connects drive motor 51, at least one carrying roller 57 is also connected with below load-transfer device 54, to ensure the ride comfort of load-transfer device 54, emission direction selection load-transfer device 5 is equipped with in the below of device for transporting objects 4 end, and described emission direction selects the load-transfer device sense of motion of load-transfer device 5 and the axial vertical of described device for transporting objects 4.
In the present embodiment, vacuum exhauster 6 comprises aggregate bin 62, striker plate 61 is comprised above this aggregate bin 62, vacuum generator 63 is connected below aggregate bin 62, material casting pipe 64 is connected below this vacuum generator 63, thus making the material in described aggregate bin 62 enter in material casting pipe 64 under the suction function that vacuum generator 63 produces, striker plate 61 is inlaid in storehouse bear building-up component 1, and storehouse bear building-up component 1 is placed on the vehicle frame 10 of Operation Van.
As shown in Figure 9, Air compressor 9 is the basic device signal of main frame needs configuration, and the cable of electric control system 7 is connected to device for transporting objects 4 and selects the drive motor of load-transfer device 5 to be connected with emission direction, and material is along the service direction conveying shown in arrow.
embodiment 1.2, a kind of integral type material stores and strength discharge method, and it comprises 1. and material is entered pipeline (8) between storehouse along the material that is oppositely delivered to of vehicle operation direct of travel;
2. start electric control system (7), realize the control to Air compressor (9), emission direction selection load-transfer device (5), device for transporting objects (4);
3. when build up of material is to time a certain amount of, start Air compressor (9), make the port of the nearly aggregate bin (62) of the vacuum generator of vacuum exhauster (6) (63) be in negative pressure state;
4. start device for transporting objects (4), material is via device for transporting objects (4), emission direction select load-transfer device (5) enter vacuum exhauster (6) aggregate bin (62) and under the effect of vacuum exhauster (6), the feed end of vacuum exhauster (6) produces negative pressure, material is sucked the base pipe of vacuum exhauster (6) by aggregate bin (62), the discharge end of vacuum exhauster (6) produces malleation, material press-in material casting pipe (64) entering the base pipe of vacuum exhauster (6) is expelled to appointed place,
5., after operation, closure material conveying device (4), emission direction select load-transfer device (5) and vacuum exhauster (6) successively;
Above step adopts the tapping equipment described in embodiment 1.1.

Claims (10)

1. integral type material stores and a strength discharge method, and it comprises
A. material is entered pipeline (8) between storehouse along the material that is oppositely delivered to of vehicle operation direct of travel;
B. start electric control system (7), realize the control to Air compressor (9), emission direction selection load-transfer device (5), device for transporting objects (4);
C. when build up of material is to time a certain amount of, start Air compressor (9), make the port of the nearly aggregate bin (62) of the vacuum generator of vacuum exhauster (6) (63) be in negative pressure state;
D. device for transporting objects (4) is started, material is via device for transporting objects (4), emission direction select load-transfer device (5) enter vacuum exhauster (6) aggregate bin (62) and under the effect of vacuum exhauster (6), the feed end of vacuum exhauster (6) produces negative pressure, material is sucked the base pipe of vacuum exhauster (6) by aggregate bin (62), the discharge end of vacuum exhauster (6) produces malleation, material press-in material casting pipe (64) entering the base pipe of vacuum exhauster (6) is expelled to appointed place,
E., after operation, closure material conveying device (4), emission direction select load-transfer device (5) and vacuum exhauster (6) successively;
It is characterized in that: above-mentioned steps is carried out successively according to the order of a, b, c, d, e.
2. integral type material stores and strength tapping equipment, it comprises storehouse bear building-up component (1), this top, storehouse bear building-up component (1) connects storehouse week framing member (2), this storehouse week framing member (2) top connection Cang Ding (3), device for transporting objects (4) is also equipped with in top, storehouse bear building-up component (1), emission direction selection load-transfer device (5) is equipped with in this device for transporting objects (4) below, this emission direction selects load-transfer device (5) end to connect vacuum exhauster (6), device for transporting objects (4) and emission direction select load-transfer device (5) to be all connected electric control system (7), vacuum exhauster (6) connects Air compressor (9), Cang Ding (3) also connects feed pipe (8), storehouse bear building-up component (1) comprises left side channel-section steel (11), right side channel-section steel (12), front side channel-section steel (13) and rear side channel-section steel (14), described left side channel-section steel (11), right side channel-section steel (12), front side channel-section steel (13) and rear side channel-section steel (14) are welded to form framed structure, it is characterized in that: vacuum exhauster (6) comprises aggregate bin (62), this aggregate bin (62) top comprises striker plate (61), described aggregate bin (62) below connects vacuum generator (63), this vacuum generator (63) below connects material casting pipe (64).
3. integral type material as claimed in claim 2 stores and strength tapping equipment, it is characterized in that: be also equipped with at least one group in described framed structure and strengthen channel-section steel (15).
4. integral type material as claimed in claim 3 stores and strength tapping equipment, it is characterized in that: welding gusset (16) in left side channel-section steel (11).
5. integral type material as claimed in claim 4 stores and strength tapping equipment, it is characterized in that: welding gusset (16) in right side channel-section steel (12).
6. integral type material as claimed in claim 5 stores and strength tapping equipment, it is characterized in that: storehouse week framing member (2) comprises storehouse front wall (21) and storehouse Hou Qiang (22), this storehouse front wall (21) and storehouse Hou Qiang (22) lay respectively at both sides, top, storehouse bear building-up component (1), are connected between storehouse front wall (21) and storehouse Hou Qiang (22) by side wall.
7. integral type material as claimed in claim 6 stores and strength tapping equipment, it is characterized in that: storehouse front wall (21) comprises access door between storehouse (211).
8. integral type material as claimed in claim 7 stores and strength tapping equipment, it is characterized in that: between storehouse, access door (211) comprises access door panel (2111), this access door panel (2111) below connection hinge (2115).
9. integral type material as claimed in claim 8 stores and strength tapping equipment, it is characterized in that: self lighting type hasp (2114) is equipped with in access door panel (2111) top.
10. integral type material as claimed in claim 9 stores and strength tapping equipment, it is characterized in that: access door panel (2111) outside also comprises hand hole box (2113), this hand hole box (2113) is recessed to described access door panel (2111) inner side.
CN201510284612.2A 2015-05-29 2015-05-29 The storage of integral type material and strength discharge method and related device Active CN105270882B (en)

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CN105270882B CN105270882B (en) 2018-09-14

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DE4412680A1 (en) * 1994-04-13 1995-10-19 Kirchhoff Heine Strassenbauges Container system for unloading waste material at disposal site
WO2009038531A1 (en) * 2007-09-18 2009-03-26 Envac Ab Waste storage
CN201317592Y (en) * 2007-12-27 2009-09-30 武汉中汽四环专用汽车有限公司 Self-sealed screw feeding device used for positive pressure conveying system
JP2009274799A (en) * 2008-05-14 2009-11-26 Sumitomo Metal Mining Co Ltd Powder quantitative delivery device control method
CN103708231A (en) * 2013-12-23 2014-04-09 江苏大学 Anti-blocking method and device for pebble coal vacuum transport system
CN203975738U (en) * 2014-08-07 2014-12-03 昆明中铁大型养路机械集团有限公司 A kind of iron filings feedway
CN104368209A (en) * 2013-08-14 2015-02-25 昆明中铁大型养路机械集团有限公司 Progressive scrap iron filtering device
CN204223854U (en) * 2014-11-19 2015-03-25 铜陵市菲力克测控技术有限公司 A kind of weight-loss type pay-off
CN204777733U (en) * 2015-05-29 2015-11-18 昆明中铁大型养路机械集团有限公司 Storage of integral type material and strength discharging equipment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412680A1 (en) * 1994-04-13 1995-10-19 Kirchhoff Heine Strassenbauges Container system for unloading waste material at disposal site
WO2009038531A1 (en) * 2007-09-18 2009-03-26 Envac Ab Waste storage
CN201317592Y (en) * 2007-12-27 2009-09-30 武汉中汽四环专用汽车有限公司 Self-sealed screw feeding device used for positive pressure conveying system
JP2009274799A (en) * 2008-05-14 2009-11-26 Sumitomo Metal Mining Co Ltd Powder quantitative delivery device control method
CN104368209A (en) * 2013-08-14 2015-02-25 昆明中铁大型养路机械集团有限公司 Progressive scrap iron filtering device
CN103708231A (en) * 2013-12-23 2014-04-09 江苏大学 Anti-blocking method and device for pebble coal vacuum transport system
CN203975738U (en) * 2014-08-07 2014-12-03 昆明中铁大型养路机械集团有限公司 A kind of iron filings feedway
CN204223854U (en) * 2014-11-19 2015-03-25 铜陵市菲力克测控技术有限公司 A kind of weight-loss type pay-off
CN204777733U (en) * 2015-05-29 2015-11-18 昆明中铁大型养路机械集团有限公司 Storage of integral type material and strength discharging equipment

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