CN206309352U - Deep-sea mining Hydraulic transportation pilot system - Google Patents
Deep-sea mining Hydraulic transportation pilot system Download PDFInfo
- Publication number
- CN206309352U CN206309352U CN201621237193.3U CN201621237193U CN206309352U CN 206309352 U CN206309352 U CN 206309352U CN 201621237193 U CN201621237193 U CN 201621237193U CN 206309352 U CN206309352 U CN 206309352U
- Authority
- CN
- China
- Prior art keywords
- delivery pipe
- deep
- pilot system
- mining hydraulic
- sea mining
- 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.)
- Active
Links
Landscapes
- Accessories For Mixers (AREA)
Abstract
The utility model discloses a kind of deep-sea mining Hydraulic transportation pilot system, including water surface support platform, intermediate bin, up delivery pipe, descending delivery pipe, feed bin, intermediate bin, batcher and collecting machine etc., up delivery pipe is connected between intermediate bin and water surface support platform, feed bin is installed in intermediate bin and is connected with up delivery pipe by batcher, collecting machine is connected by conveyance conduit with feed bin, elevator pump is connected with up delivery pipe, it is provided with above elevator pump in up delivery pipe for blocking up delivery pipe and material being discharged the dump valve of up delivery pipe, descending delivery pipe is connected by intermediate bin with up delivery pipe.The deep-sea mining Hydraulic transportation pilot system disclosure satisfy that the conveying of coarse granule mineral is required, and blocking, security can be avoided good.
Description
Technical field
The utility model is related to deep-sea mining technical field of operation, and in particular to a kind of suitable for the collection of deep-sea particulate mineral
Deep-sea mining Hydraulic transportation pilot system.
Background technology
In recent decades, phase flow pipeline hydraulic transportation technology due to its operating cost it is low, the of a relatively high advantage of reliability, extensively
It is applied to solid ore pulp transportation art, such as engineering field such as the defeated coal of deep-sea mining, waterpower and river dredging.
In ore slurry pipeline course of conveying, due to conveying concentration, speed, the particle diameter of material to conveyance conduit transportation performance
Influence, the problems such as transfer efficiency can be caused not high or delivery safety is had a strong impact on due to line clogging, these all will significantly
Increase operation cost.In deep-sea mining engineering, due to the complexity of abyssal environment, particle blocks pipe phenomenon frequently to be occurred.
Deep-sea mineral conveying is effectively simulated, lifting electric pump performance is obtained and integrated piping system is transported data, determine that system is most preferably defeated
Parameter is sent, is the problem that various countries research staff faces.To obtain more preferable transportation parameters, it is defeated that various countries have developed pipelines one after another
System is sent, makes every effort to complete simulated test in laboratory.In terms of ore-raising pipe road vertical-lifting, South Korea, India, Japan, Germany,
Poland etc. establishes raises ore deposit simulation experiment system, but is all primarily upon the acquisition of transportation parameters, seldom to suitable for sea trial
The availability and feasibility of system are probed into, and not yet in effect solve the problems, such as to avoid line clogging.
Utility model content
The technical problems to be solved in the utility model is to overcome the shortcomings of that prior art is present, there is provided one kind can avoid blocking up
The good deep-sea mining Hydraulic transportation pilot system of plug, security.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of deep-sea mining Hydraulic transportation pilot system, including water surface support platform, intermediate bin, up delivery pipe, feed bin,
Batcher and collecting machine, the up delivery pipe are connected between intermediate bin and water surface support platform, during the feed bin is installed on
Between be connected with up delivery pipe in storehouse and by batcher, the collecting machine is connected by conveyance conduit with feed bin, described up
Elevator pump is connected with delivery pipe, is provided with above elevator pump in the up delivery pipe for blocking up delivery pipe and inciting somebody to action
Material discharges the dump valve of up delivery pipe.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that the dump valve includes and up delivery pipe
The discharge pipe of connection and be hinged the valve plate being installed in up delivery pipe, the jointed shaft of the valve plate be located at discharge pipe with it is up
The lower section of delivery pipe connectivity part, and valve plate can be by swinging up and down the up delivery pipe of blocking or discharge pipe, the dump
Valve forces the elastic mechanism that valve plate swings to the direction for blocking up delivery pipe when being additionally included in valve plate blocking discharge pipe.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that the elastic mechanism includes being installed on up conveying
Adjustable spring on pipe.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that connection of the discharge pipe certainly with up delivery pipe
Place arranges diagonally downward.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that away from the side of its hinge axes on the valve plate
Extension is provided with, the extension extends from valve plate when valve plate blocks up delivery pipe to the direction of elevator pump.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that the batcher is defeated with up by a flow mixing device
Send pipe to be connected, the flow mixing device is provided with the opening of inner chamber and three and the inner space, two of which opening respectively with give
Material machine is connected with up delivery pipe, and another opening is provided with on-off valve component.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that the on-off valve component includes being sealed for fitting
The sealing plate and telescopic drive part of the opening are closed, the sealing plate is connected to the drive end of telescopic drive part and can be driven by flexible
Moving part is driven away from the opening or the laminating closing opening.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that the telescopic drive part is telescopic oil cylinder.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that between the water surface support platform and intermediate bin also
Descending delivery pipe is connected with, the descending delivery pipe is connected with feed bin, and the water surface support platform is provided with for descending defeated
Send water supply component and the supply assembly for supplying mineral grain to descending delivery pipe that pipe supplies water.
Above-mentioned deep-sea mining Hydraulic transportation pilot system, it is preferred that the supply assembly includes connecting with descending delivery pipe
Logical additive bin and the conveyer for mineral grain to be delivered to additive bin；The water supply component includes being used for described
The water tank that additive bin or descending delivery pipe supply water.
Compared with prior art, the utility model has the advantage of：Deep-sea mining Hydraulic transportation experiment of the present utility model
System is provided with dump valve in the up delivery pipe above elevator pump, stops suddenly etc. in emergency circumstances, leading in elevator pump
Cross urgent drain valve to block up delivery pipe, and material is discharged into up delivery pipe, material can be avoided to enter elevator pump, and then
Feed blocking elevator pump is prevented, and after off-test, can open dump valve will not drain in up delivery pipe yet
Material is discharged.The deep-sea mining Hydraulic transportation pilot system can effectively simulate deep-sea coarse granule mineral conveying, obtain lifting electricity
Pump work performance and pipeline parameter, carry out the comparing of different transport models, realize 2 times of pipeline transmission capacities of the depth of water, its
Cannot be only used for laboratory test, it can also be used to sea experiment card, and particle blocking can be prevented effectively from, with preferable security.
Brief description of the drawings
Fig. 1 is the structural representation of deep-sea mining Hydraulic transportation pilot system.
Fig. 2 is that dump valve is blocking the cross section structure diagram of up delivery pipe state.
Fig. 3 is cross section structure diagram of the dump valve in closure discharge pipe state.
Fig. 4 is that dump valve is illustrated from closure discharge pipe state to sectional structure when blocking discharge pipe State Transferring
Figure.
Fig. 5 is structural representation of the flow mixing device when on-off valve component is closed.
Fig. 6 is structural representation of the flow mixing device when on-off valve component is opened.
Marginal data：
1st, water surface support platform；2nd, intermediate bin；3rd, up delivery pipe；4th, feed bin；5th, batcher；6th, collecting machine；7th, convey
Pipeline；8th, elevator pump；9th, dump valve；91st, valve plate；911st, extension；92nd, discharge pipe；93rd, adjustable spring；94th, it is spacing
Block；10th, flow mixing device；101st, inner chamber；102nd, it is open；103rd, sealing plate；104th, telescopic drive part；11st, descending delivery pipe；12nd, on
Funnel；13rd, conveyer；14th, water tank.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figures 1 to 4, the deep-sea mining Hydraulic transportation pilot system of the present embodiment, including water surface support platform 1,
Intermediate bin 2, up delivery pipe 3, feed bin 4, batcher 5 and collecting machine 6, up delivery pipe 3 are connected to intermediate bin 2 and water surface support
Between platform 1, wherein, up delivery pipe 3 is connected with water surface support platform 1 by Door block, and feed bin 4 is installed on intermediate bin 2
In and be connected with up delivery pipe 3 by batcher 5, collecting machine 6 is connected by conveyance conduit 7 with feed bin 4, up delivery pipe 3
On be connected with elevator pump 8, be provided with dump valve 9 in the top of elevator pump 8 in up delivery pipe 3, dump valve 9 can be blocked
Material is simultaneously discharged up delivery pipe 3 by up delivery pipe 3.The conveyance conduit 7 of the present embodiment uses delivery hose, elevator pump 8 to adopt
With lifting electric pump.
The deep-sea mining Hydraulic transportation pilot system is provided with dump valve in the up delivery pipe 3 of the top of elevator pump 8
9, in elevator pump 8, stopping etc. in emergency circumstances, being blocked up delivery pipe 3 by dump valve 9, and material is discharged suddenly
Up delivery pipe 3, can avoid material from entering elevator pump 8, and then prevent feed blocking elevator pump 8, and after off-test,
The material discharge that dump valve 9 will not drained in up delivery pipe 3 can be opened.
In the present embodiment, dump valve 9 includes the discharge pipe 92 connected with up delivery pipe 3 and is hinged to be installed on
Valve plate 91 in row delivery pipe 3, the hinge axes of valve plate 91 are horizontally disposed, the jointed shaft of valve plate 91 be located at discharge pipe 92 with it is up
The lower section of the connectivity part of delivery pipe 3, and valve plate 91 can be by swinging up and down the up delivery pipe 3 of blocking or discharge pipe 92, urgent row
Put the elasticity for forcing valve plate 91 to be swung to the direction for blocking up delivery pipe 3 when valve 9 is additionally included in the blocking discharge pipe 92 of valve plate 91
Mechanism.Elastic mechanism includes the adjustable spring 93 being installed in up delivery pipe 3, and valve plate 91 is being rocked to close to blocking discharge pipe
Contacted with the adjustable spring 93 when 92, and need the further compression ability of adjustable spring 93 to block discharge pipe 92 completely.In lifting
When pump 8 does not work, valve plate 91 is in the up delivery pipe 3 of blocking, the state of connection discharge pipe 92（Now valve plate 91 is horizontally disposed）,
Adjustable spring 93 is in the original state not being stressed；In normal work, the pressure of the outputting material of elevator pump 8 forces valve plate 91
It is swung up, valve plate 91 connects up delivery pipe 3, while valve plate 91 compresses adjustable spring 93 and blocks discharge pipe 92（Now
Valve plate 91 is arranged vertically）, material can convey normally；When elevator pump 8 stops suddenly, the release of adjustable spring 93 promotes valve plate 91
Swung to the direction for blocking up delivery pipe 3, while by the material free settling in up delivery pipe 3 to the work of valve plate 91
With, valve plate 91 is rocked to the state for blocking up delivery pipe 3 completely, the material in up delivery pipe 3 can be by discharge pipe
92 are discharged into outside up delivery pipe 3, so as to avoid material from entering elevator pump 8.The dump valve 9 can be automatically obtained blocking
Up delivery pipe 3 or discharge pipe 92, it has the advantages that simple structure, is easy to making, low cost, stable and reliable operation.
In the present embodiment, discharge pipe 92 is arranged diagonally downward with the connectivity part of up delivery pipe 3 certainly, beneficial to mineral grain
Discharge.
In the present embodiment, the side on valve plate 91 away from its hinge axes is provided with extension 911, and extension 911 is in valve plate
91 extend from valve plate 91 when blocking up delivery pipe 3 to the direction of elevator pump 8, set the extension 911 and are exported beneficial to elevator pump 8
Material promote valve plate 91 to be rocked to the state of blocking discharge pipe 92, while also acting on valve plate 91 beneficial to the material of automatic sedimentation
Above so that valve plate 91 is rocked to the state for blocking up delivery pipe 3.Further, also set in the up delivery pipe 3 of the present embodiment
There is the limited block 94 that the bottom of valve plate 91 is supported on when valve plate 91 blocks up delivery pipe 3.
In the present embodiment, batcher 5 is connected by a flow mixing device 10 with up delivery pipe 3, as shown in Figure 5 and Figure 6, mixed flow
Device 10 is provided with the opening 102 that inner chamber 101 and three connect with inner chamber 101, two of which opening 102 respectively with batcher 5 and
Up delivery pipe 3 is connected, and another opening 102 is provided with on-off valve component.The flow mixing device 10 of the present embodiment is specially a Y type knots
Structure.
Setting the flow mixing device 10 makes deep-sea mining Hydraulic transportation pilot system to realize two kinds of work patterns, the first operation
Pattern is that on-off valve component closes opening 102, forms closed-loop path work pattern, and mineral grain is supplied by batcher 5
And seawater, mineral grain and seawater be directly entered up delivery pipe 3 after mixing in flow mixing device 10, and defeated by up delivery pipe 3
Deliver to water surface support platform 1；Second work pattern is that on-off valve component opens opening 102, is fed by batcher 5, on
Water in row delivery pipe 3 is directly fed by outside seawater, and up delivery pipe is entered after mineral grain and sea water mixing
3, and water surface support platform 1 is delivered to by up delivery pipe 3.Under the work pattern of closed-loop path, if up delivery pipe 3 occur blocking up
Plug phenomenon, can also be opened opening 102 by on-off valve component, the material discharge that will be blocked, so as to solve the problems, such as to block.
In off-test, opening 102 can also be opened by valve member, the material discharge that will do not drained in pipeline.
The on-off valve component of the present embodiment includes closing the sealing plate 103 of opening 102 for fitting and is installed on mixed flow
Telescopic drive part 104 on device 10, sealing plate 103 is connected to the drive end of telescopic drive part 104 and can be by telescopic drive part 104
Drive away from opening 102 or laminating closing opening 102.Telescopic drive part 104 uses telescopic oil cylinder, and pacifies on flow mixing device 10
Fill two telescopic oil cylinders and drive sealing plate 103 simultaneously, to improve the stability of the action of sealing plate 103 and the reliability of sealing.
In the present embodiment, descending delivery pipe 11, descending delivery pipe are also associated between water surface support platform 1 and intermediate bin 2
11 connect with feed bin 4, and water surface support platform 1 is provided with water supply component for being supplied water to descending delivery pipe 11 and for descending
, for the supply assembly of mineral grain, the water and mineral grain that water supply component and supply assembly are supplied can be through descending conveyings for delivery pipe 11
Pipe 11 is delivered to feed bin 4.
After descending delivery pipe 11, water supply component and supply assembly are set, deep-sea mining Hydraulic transportation pilot system is capable of achieving
Two kinds of work patterns, the first is that material is transported to feed bin 4 after collecting machine 6 is gathered by through conveyance conduit 7, then by being fed
Machine 5 is exported to up delivery pipe 3, and water surface support platform 1 is delivered to through up delivery pipe 3 in the presence of elevator pump 8；Second
It is that, by being manually fed in water surface support platform 1, material is supplied by supply assembly and water supply component, and material is through descending delivery pipe
11 are delivered to feed bin 4, then are exported to up delivery pipe 3 by batcher 5, are conveyed through up delivery pipe 3 in the presence of elevator pump 8
To water surface support platform 1, so as to the simulation for realizing the twice depth of water conveys experiment.
In the present embodiment, supply assembly includes the additive bin 12 that is connected with descending delivery pipe 11 and for by mineral grain
The conveyer 13 of additive bin 12 is delivered to, conveyer 13 can be using existing mature equipments such as belt feeders；Water supply component includes
Water tank 14, water tank 14 can be connected with additive bin 12 or descending delivery pipe 11, to supply water to additive bin 12 again by upper
Funnel 12 is supplied to descending delivery pipe 11, or water is directly fed into descending delivery pipe 11.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment.To those of ordinary skill in the art, the gained under the premise of the utility model technology design is not departed from
To modifications and variations also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of deep-sea mining Hydraulic transportation pilot system, including water surface support platform（1）, intermediate bin（2）, up delivery pipe
（3）, feed bin（4）, batcher（5）And collecting machine（6）, the up delivery pipe（3）It is connected to intermediate bin（2）It is flat with water surface support
Platform（1）Between, the feed bin（4）It is installed on intermediate bin（2）In and pass through batcher（5）With up delivery pipe（3）It is connected, it is described
Collecting machine（6）By conveyance conduit（7）With feed bin（4）It is connected, the up delivery pipe（3）On be connected with elevator pump（8）, it is special
Levy and be：The up delivery pipe（3）On in elevator pump（8）Top be provided with for blocking up delivery pipe（3）And by material
Discharge up delivery pipe（3）Dump valve（9）.
2. deep-sea mining Hydraulic transportation pilot system according to claim 1, it is characterised in that：The dump valve
（9）Including with up delivery pipe（3）The discharge pipe of connection（92）And be hinged and be installed on up delivery pipe（3）In valve plate
（91）, the valve plate（91）Jointed shaft be located at discharge pipe（92）With up delivery pipe（3）The lower section of connectivity part, and valve plate（91）
Can be by swinging up and down the up delivery pipe of blocking（3）Or discharge pipe（92）, the dump valve（9）It is additionally included in valve plate
（91）Blocking discharge pipe（92）When force valve plate（91）To the up delivery pipe of blocking（3）Direction swing elastic mechanism.
3. deep-sea mining Hydraulic transportation pilot system according to claim 2, it is characterised in that：The elastic mechanism includes
It is installed on up delivery pipe（3）On adjustable spring（93）.
4. deep-sea mining Hydraulic transportation pilot system according to claim 2, it is characterised in that：The discharge pipe（92）From
With up delivery pipe（3）Connectivity part arrange diagonally downward.
5. deep-sea mining Hydraulic transportation pilot system according to claim 2, it is characterised in that：The valve plate（91）It is upper remote
Side from its hinge axes is provided with extension（911）, the extension（911）In valve plate（91）Block up delivery pipe（3）
When from valve plate（91）To elevator pump（8）Direction extend.
6. deep-sea mining Hydraulic transportation pilot system according to claim 1, it is characterised in that：The batcher（5）It is logical
Cross a flow mixing device（10）With up delivery pipe（3）It is connected, the flow mixing device（10）It is provided with inner chamber（101）And three interior with described
Chamber（101）The opening of connection（102）, two of which opening（102）Respectively with batcher（5）With up delivery pipe（3）It is connected, separately
One opening（102）It is provided with on-off valve component.
7. deep-sea mining Hydraulic transportation pilot system according to claim 6, it is characterised in that：The on-off valve component
Including for the closing opening of fitting（102）Sealing plate（103）With telescopic drive part（104）, the sealing plate（103）Even
It is connected to telescopic drive part（104）Drive end and can be by telescopic drive part（104）Drive away from the opening（102）Or laminating
Close the opening（102）.
8. deep-sea mining Hydraulic transportation pilot system according to claim 7, it is characterised in that：The telescopic drive part
（104）It is telescopic oil cylinder.
9. deep-sea mining Hydraulic transportation pilot system according to any one of claim 1 to 8, it is characterised in that：It is described
Water surface support platform（1）And intermediate bin（2）Between be also associated with descending delivery pipe（11）, the descending delivery pipe（11）With feed bin
（4）Connection, the water surface support platform（1）It is provided with for descending delivery pipe（11）The water supply component of water supply and for downward
Row delivery pipe（11）For the supply assembly of mineral grain.
10. deep-sea mining Hydraulic transportation pilot system according to claim 9, it is characterised in that：The supply assembly bag
Include and descending delivery pipe（11）The additive bin of connection（12）With for mineral grain to be delivered into additive bin（12）Conveying
Machine（13）；The water supply component includes being used for the additive bin（12）Or descending delivery pipe（11）The water tank of water supply
（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237193.3U CN206309352U (en) | 2016-11-18 | 2016-11-18 | Deep-sea mining Hydraulic transportation pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237193.3U CN206309352U (en) | 2016-11-18 | 2016-11-18 | Deep-sea mining Hydraulic transportation pilot system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309352U true CN206309352U (en) | 2017-07-07 |
Family
ID=59244062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621237193.3U Active CN206309352U (en) | 2016-11-18 | 2016-11-18 | Deep-sea mining Hydraulic transportation pilot system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368652A (en) * | 2016-11-18 | 2017-02-01 | 长沙矿冶研究院有限责任公司 | Hydraulic conveying testing system for deep sea mining |
| WO2020211289A1 (en) * | 2019-04-19 | 2020-10-22 | 中国海洋大学 | Deep-sea polymetallic nodule mining operation system |
| CN111878418A (en) * | 2020-06-10 | 2020-11-03 | 江苏大学 | Mixed transportation pump stop protection device for deep sea mining |
-
2016
- 2016-11-18 CN CN201621237193.3U patent/CN206309352U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368652A (en) * | 2016-11-18 | 2017-02-01 | 长沙矿冶研究院有限责任公司 | Hydraulic conveying testing system for deep sea mining |
| WO2020211289A1 (en) * | 2019-04-19 | 2020-10-22 | 中国海洋大学 | Deep-sea polymetallic nodule mining operation system |
| CN111878418A (en) * | 2020-06-10 | 2020-11-03 | 江苏大学 | Mixed transportation pump stop protection device for deep sea mining |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106368652A (en) | Hydraulic conveying testing system for deep sea mining | |
| CN206309352U (en) | Deep-sea mining Hydraulic transportation pilot system | |
| CN202645475U (en) | Device for receiving and conveying well cuttings | |
| CN202498631U (en) | High speed stirring pulping bench vehicle | |
| CN110439610B (en) | Remote slurry filling and conveying system and method for coal mine goaf | |
| CN201041052Y (en) | Filling type paste preparation system for quarry | |
| CN108643963A (en) | For the pressure relief device of underground filling plugging, method and back-filling system | |
| CN207667561U (en) | A kind of shale oil gas hydraulic fracturing sanding device | |
| CN108724469A (en) | A kind of mixed mud making automatic manufacturing device | |
| CN103867228B (en) | A kind of Tailing Paste Filling device | |
| CN207813648U (en) | A kind of device of compatible pumping and gravity flow paste body filling | |
| CN110410141A (en) | A kind of remote slurry filling perturbed system in coal mine gob and method | |
| CN203097933U (en) | Movable type multifunctional slurry injecting system for coal mine | |
| CN204675145U (en) | A kind of activated vibration coal feeder | |
| CN203769848U (en) | Tailing paste filling device | |
| CN201606112U (en) | 300-cubic meter stirring type high-water expanding material filling complete equipment | |
| CN211732520U (en) | Tailing feeding barrel for filling | |
| CN201457698U (en) | Sand pumping boat capable of realizing sand unloading automation | |
| CN102865105A (en) | Mud discharging facility composed of water pump and mud discharging tank | |
| CN211666714U (en) | Environment-friendly semi-closed loop deep sea ore hydraulic lifting system | |
| CN208594964U (en) | Pressure relief device and back-filling system for underground filling plugging | |
| CN103332410B (en) | A kind of powder material storage system and mixing plant | |
| CN213058476U (en) | Bulk cement transporting and charging tank car | |
| CN207035145U (en) | A kind of feed arrangement of rotary kiln | |
| CN110725683A (en) | Slurry circulation slag discharging system for shaft boring machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |