CN206763087U - Gangue mixed material screens crushing dust collection device - Google Patents
Gangue mixed material screens crushing dust collection device Download PDFInfo
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- CN206763087U CN206763087U CN201720392820.9U CN201720392820U CN206763087U CN 206763087 U CN206763087 U CN 206763087U CN 201720392820 U CN201720392820 U CN 201720392820U CN 206763087 U CN206763087 U CN 206763087U
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- gangue
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- vibratory sieve
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Abstract
A kind of gangue mixed material screens crushing dust collection device,Including carrier bed frame,The vibration screening mechanism being fixed on carrier bed frame,Crushing mechanism,Transport mechanism,Deironing mechanism,Spraying mechanism,Vibration screening mechanism includes vibratory sieve,The vibratory sieve includes feeding mouth and discharging opening,Feed bin is provided with the feeding mouth of vibratory sieve,It is easy to input material,The discharging opening of vibratory sieve is arranged on the top of crushing mechanism,Collecting bin is provided between the discharging opening and crushing mechanism of vibratory sieve,Transport mechanism is arranged on the bottom of carrier bed frame,So that vibration screening and the gangue material after crushing to be exported,Deironing mechanism is arranged on the top of the transport mechanism in front of crushing mechanism,To adsorb the magnetisable material in the gangue material of transport mechanism conveying,Spraying mechanism is arranged on the top of vibration screening mechanism and the top of crushing mechanism,To just carrying out spraying and dedusting in the material of vibration screening and broken material,To complete the broken dedusting work of whole gangue mixed material screening.
Description
Technical field
It the utility model is related to gangue mixed material reducing mechanism technical field, and in particular to a kind of gangue mixture
Material screen selects crushing dust collection device.
Background technology
Gangue is the less tailing of use value discharged during coal mining process and coal washing, is one kind in coalification course
In the black and gray rock relatively low, harder than coal with a kind of phosphorus content of coal seam association.The purposes of gangue is a lot, including recovery coal
Charcoal and pyrite, for generating electricity, manufacturing construction material etc., gangue can also be used to produce low-heat value gas, manufacture ceramics, make
Soil conditioner, or for paving the way, underground filling, ground filling make ground.
In recent years, country advocated green low-carbon economic development always, and stone pit, cement, coal, which all become, to be paid close attention to
Object.The annual gangue discharge capacity in China accounts for the 10%~15% of coal production then, and China's gangue is accumulative at present
Volume of cargo in storage is up to 30 × 108T, form and exceed 1500 coal gangue hills, not only occupy a large amount of soils, can also polluted underground water
System, and the pernicious gases such as substantial amounts of sulfur dioxide are produced because of spontaneous combustion, environment is polluted, therefore gangue is screened, crushed, make original
Material is broken into the particle diameter for meeting production needs, so as to recycle, has significant economic value.
The content of the invention
In view of this, it is necessary to which a kind of convenience, practical gangue mixed material screening crushing dust collection device are provided.
A kind of gangue mixed material screens crushing dust collection device, including carrier bed frame, is fixed on shaking on carrier bed frame
Dynamic sorting mechanism, crushing mechanism, transport mechanism, Deironing mechanism, spraying mechanism, the vibration screening mechanism include vibratory sieve, institute
State vibratory sieve and be provided with feeding mouth and discharging opening, feed bin is provided with the feeding mouth of the vibratory sieve, be easy to input material, it is described
Crushing mechanism includes double-roll crusher, and the double-roll crusher is fixed on carrier bed frame by fixed connecting rod, the vibration
The discharging opening of sieve is arranged on the top of the double-roll crusher, between the discharging opening and the double-roll crusher of the vibratory sieve
Collecting bin is provided with, vibratory sieve is connected with double-roll crusher, the bulk gangue material for being easy to Vibration Screen to select, conveying
Enter double-roll crusher further to crush, the discharging opening of the double-roll crusher is arranged on the top of transport mechanism, the conveyer
Structure is arranged on the bottom of carrier bed frame, vibration screening and the gangue material after crushing is exported, the Deironing mechanism is set
The top of transport mechanism in front of double-roll crusher, and Deironing mechanism is set close to transport mechanism, it is defeated to adsorb transport mechanism
Magnet metal in the gangue material sent, the spraying mechanism are arranged on the top of vibratory sieve and the top of double-roll crusher,
With to just carrying out spraying and dedusting in the material of vibration screening and broken material.
Preferably, chute is additionally provided with below the vibratory sieve, and chute is arranged on the top of transport mechanism, the chute
Upper end connected with vibratory sieve, the small-particle coal spoil material that Vibration Screen is selected is delivered to transport mechanism.
Preferably, the transport mechanism includes big transmission belt and small transmission belt, and the big transmission belt passes through fixed connecting rod
The bottom of whole carrier bed frame is fixed on, the small-particle coal spoil that the chute slides is transferred out, the small transmission belt
It is fixed on by fixed connecting rod on the carrier bed frame above big transmission belt, and is arranged on the lower section of double-roll crusher, will be right
The broken coal gangue particle of roll crusher is delivered in big transmission belt, and then is transferred out by big transmission belt.
Preferably, protective cover is provided with above the double-roll crusher, to avoid coal gangue particle in shattering process from splashing
Go out and hurt surrounding people, protective cover includes horizontal metal plate and two structure identical curved surface metal plates, and horizontal metal plate is along water
Square to being fixed on carrier bed frame, opening is provided with the centre position of horizontal metal plate, is connected with coordinating with the collecting bin,
Two curved surface metal plates are symmetricly set on the both sides of double-roll crusher, and are fixedly connected with horizontal metal plate, two Curved surface metals
Plate fastens and is separated with material flow export among the bottom got up, so that the coal gangue particle after roller pair breaking crusher machine passes through material flow
Outlet is fallen, and material flow export is arranged on the top of small transmission belt, to be conveyed the coal gangue particle fallen by small transmission belt
Go out.
Preferably, the spraying mechanism includes the first water service pipe, some first shower nozzles, the second water service pipe, some second sprays
Head, the first water service pipe is fixedly arranged above in the vibratory sieve, several described first shower nozzles are symmetricly set on the first water service pipe
Both sides, some first shower nozzles are uniformly arranged in the side wall of the first water service pipe, and the opening direction of first shower nozzle tilts down
Set, fully to eliminate the dust during vibratory sieve screening, and liquid water stream plays a part of lubrication to gangue, is easy to coal
The conveying of spoil, the second water service pipe is set in the side wall of the horizontal metal plate of the double-roll crusher, in the second water service pipe
Some second shower nozzles are set in side wall, fully to eliminate the dust in double-roll crusher shattering process, and coal gangue particle risen
To the effect of lubrication, it is easy to the conveying of gangue.
Preferably, the Deironing mechanism is fixed on the carrier bed frame above big transmission belt by fixed connecting rod, iron removaling
It is flexibly connected between mechanism and fixed connecting rod by attachment means, attachment means include adapter sleeve, connecting rod and link, even
Female connector is enclosed in fix bar, and the lower end of adapter sleeve is fixedly connected with the connecting rod, and the top of link offers connecting hole, connecting rod
The connecting hole is inserted, is fixedly connected with link, and can be relatively rotated between connecting rod and link, link is cube
Shape framework, four sides of link are all provided with connecting hole, and connection steel cable is penetrated in the connecting hole of the link, to pass through connection
Steel cable hangs up magnet.
The utility model uses above-mentioned technical proposal, and its advantage is：A kind of gangue mixed material screening is broken
Dust arrester, including carrier bed frame, the vibration screening mechanism being fixed on carrier bed frame, crushing mechanism, transport mechanism, magnetic separator de-ironing
Structure, spraying mechanism, vibration screening mechanism screen to the coal gangue particle being passed through, and the small-particle coal spoil filtered out is from vibration
Sorting mechanism lower end, slide to transport mechanism and transfer out, the large coal particles spoil filtered out is led to by the collecting bin of vibratory sieve one end
Enter in crushing mechanism and further crush, transferred out again by transport mechanism after broken, while be arranged on removing above transport mechanism
Iron mechanism, the magnet metal in coal gangue particle is absorbed, and avoid enter into subsequent production activity and damage production equipment, in addition
The spraying mechanism being arranged on above vibration screening mechanism and crushing mechanism, to the material just in vibration screening and broken thing
Material carries out spraying and dedusting, to complete the broken dedusting work of whole gangue mixed material screening.
Brief description of the drawings
Fig. 1 is that the gangue mixed material of a better embodiment screens the structural representation of crushing dust collection device.
Fig. 2 is the partial enlarged drawing of spraying mechanism on vibratory sieve.
Fig. 3 is the partial enlarged drawing of spraying mechanism on crushing mechanism.
Fig. 4 is the partial enlarged drawing of Deironing mechanism.
In figure：Gangue mixed material screening crushing dust collection device 10, carrier bed frame 11, vibration screening mechanism 12, vibration
Sieve 121, feed bin 122, collecting bin 123, chute 124, crushing mechanism 13, double-roll crusher 131, protective cover 132, horizontal metal plate
1321st, curved surface metal plate 1322, transport mechanism 14, big transmission belt 141, small transmission belt 142, Deironing mechanism 15, attachment means
151st, adapter sleeve 1511, connecting rod 1512, link 1513, connection steel cable 152, magnet 153, spraying mechanism 16, the first shower nozzle
161st, the second shower nozzle 162.
Embodiment
Fig. 1 to Fig. 4 is refer to, the utility model embodiment provides a kind of broken dedusting dress of gangue mixed material screening
Put 10, including carrier bed frame 11, the vibration screening mechanism 12 being fixed on carrier bed frame 11, crushing mechanism 13, transport mechanism 14,
Deironing mechanism 15, spraying mechanism 16, the vibration screening mechanism 12 include vibratory sieve 121, and the vibratory sieve 121 is provided with feeding mouth
And discharging opening, feed bin 122 is provided with the feeding mouth of the vibratory sieve 121, is easy to input material, the crushing mechanism 13 wraps
Double-roll crusher 131 is included, the double-roll crusher 131 is fixed on carrier bed frame 11 by fixed connecting rod, the vibratory sieve
121 discharging opening is arranged on the top of the double-roll crusher 131, is broken in discharging opening and the two pairs of rollers of the vibratory sieve 121
Collecting bin 123 is provided between broken machine 131, vibratory sieve 121 is connected with double-roll crusher 131, is easy to vibratory sieve 121 to screen
The bulk gangue material gone out, is conveyed and is further crushed into double-roll crusher 131, and the discharging opening of the double-roll crusher 131 is set
Put and be arranged on the bottom of carrier bed frame 11 in the top of transport mechanism 14, the transport mechanism 14, by vibration screening and crush
Gangue material output afterwards, the Deironing mechanism 15 are arranged on the top of the transport mechanism 14 in the front of double-roll crusher 131, and
Deironing mechanism 15 is set close to transport mechanism 14, to adsorb the magnet metal in the gangue material of the conveying of transport mechanism 14, institute
State spraying mechanism 16 and be arranged on the top of vibratory sieve 121 and the top of double-roll crusher 131, with to just in the material of vibration screening
And broken material carries out spraying and dedusting.
Further, chute 124 is additionally provided with below the vibratory sieve 121, and chute 124 is arranged on transport mechanism 14
Top, the upper end of the chute 124 connect with vibratory sieve 121, and the small-particle coal spoil material that Vibration Screen is selected conveys
To transport mechanism 14.
Further, the transport mechanism 14 includes big transmission belt 141 and small transmission belt 142, and the big transmission belt 141 is logical
The bottom that fixed connecting rod is fixed on whole carrier bed frame 11 is crossed, the small-particle coal spoil that the chute 124 is slided conveys
Go out, the small transmission belt 142 is fixed on by fixed connecting rod on the carrier bed frame 11 of the big top of transmission belt 141, and is set
In the lower section of double-roll crusher 131, the coal gangue particle that double-roll crusher 131 crushes is delivered in big transmission belt 141, entered
And transferred out by big transmission belt 141, simultaneously because double-roll crusher 131 has materials from spattering in gangue shattering process, it is long
Transmission belt can be caused to damage during time service, therefore small transmission belt 142 is individually set below double-roll crusher 131, more
It is convenient and cost-effective to change.
Further, protective cover 132 is provided with above the double-roll crusher 131, to avoid bastard coal in shattering process
Stone particle, which is spilt, hurts surrounding people, and protective cover 132 includes horizontal metal plate 1321 and two structure identical curved surface metal plates
1322, horizontal metal plate 1321 is fixed on carrier bed frame 11 in the horizontal direction, is installed in the interposition of horizontal metal plate 1321
There is opening, connected with coordinating with the collecting bin 123, two curved surface metal plates 1322 are symmetricly set on double-roll crusher 131
Both sides, and be fixedly connected with horizontal metal plate 1321, two curved surface metal plates 1322 fasten and are separated with material among the bottom got up
Flow export, so that the coal gangue particle after double-roll crusher 131 is broken is fallen by material flow export, material flow export is arranged on
The top of small transmission belt 142, to be transferred out the coal gangue particle fallen by small transmission belt 142.
Referring to Fig. 2 and Fig. 3, further, the spraying mechanism 16 includes the first water service pipe, some first shower nozzles 161, the
Two water service pipes, some second shower nozzles 162, the first water service pipe, several described first sprays are fixedly arranged above in the vibratory sieve 121
First 161 are symmetricly set on the both sides of the first water service pipe, and some first shower nozzles 161 are uniformly arranged in the side wall of the first water service pipe,
The opening direction of first shower nozzle 161 tilts down setting, fully to eliminate vibratory sieve, the dust in screening process, and liquid
Body current play a part of lubrication to gangue, are easy to the conveying of gangue, in the horizontal metal plate of the double-roll crusher 131
Second water service pipe is set in 1321 side wall, some second shower nozzles 162 are set in the side wall of the second water service pipe, fully to eliminate
Dust in the shattering process of double-roll crusher 131, and lubrication is played a part of to coal gangue particle, it is easy to the conveying of gangue.
Further, the Deironing mechanism 15 is fixed on the carrier bed frame of the big top of transmission belt 141 by fixed connecting rod
On 11, it is flexibly connected between Deironing mechanism 15 and fixed connecting rod by attachment means 151, attachment means 151 include adapter sleeve
1511st, connecting rod 1512 and link 1513, adapter sleeve 1511 are enclosed in fix bar, the lower end of adapter sleeve 1511 and connecting rod
1512 are fixedly connected, and the top of link 1513 offers connecting hole, and connecting rod 1512 inserts the connecting hole, with link
1513 are fixedly connected, and can be relatively rotated between connecting rod 1512 and link 1513, and link 1513 is cube shape framework,
1,513 4 sides of link are all provided with connecting hole, and connection steel cable 152 is penetrated in the connecting hole of the link 1513, to pass through
Connection steel cable 152 hangs up magnet 153.
In gangue mixed material screening crushing dust collection device in use, gangue is entered in vibratory sieve 121 by feed bin,
Screened by vibratory sieve 121, small-particle coal spoil is slided into big transmission belt 141 by the chute 124 of the lower section of vibratory sieve 121, defeated
Send out, large coal particles spoil is slipped into double-roll crusher 131 by the collecting bin 123 of the one end of vibratory sieve 121 and further crushed, and is passed through
Cross double-roll crusher 131 it is broken after coal gangue particle fall into small transmission belt 142 and send out, in big transmission belt 141 and small transmission belt
The Deironing mechanism 15 that 142 output ends are set, in the coal gangue particle that big transmission belt 141 and small transmission belt 142 are transferred out
Magnet metal is absorbed, and is avoided enter into next link and is damaged production equipment, while is arranged on vibratory sieve 121 and double-roll crusher
The spraying mechanism 16 of 131 tops, sprayed water in entirely screening shattering process, caused dust in screening shattering process is removed
Go, while lubrication is played to gangue, be easy to transmission belt to transfer out.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, one of ordinary skill in the art will appreciate that realize all or part of flow of above-described embodiment, and according to this reality
The equivalent variations made with new claim, still fall within the scope that utility model is covered.
Claims (6)
1. a kind of gangue mixed material screens crushing dust collection device, it is characterised in that：Including carrier bed frame, it is fixed on carrying base
Vibration screening mechanism, crushing mechanism, transport mechanism, Deironing mechanism, spraying mechanism on frame, the vibration screening mechanism include shaking
Dynamic sieve, the vibratory sieve are provided with feeding mouth and discharging opening, feed bin are provided with the feeding mouth of the vibratory sieve, are easy to input thing
Material, the crushing mechanism include double-roll crusher, and the double-roll crusher is fixed on carrier bed frame by fixed connecting rod, institute
The discharging opening for stating vibratory sieve is arranged on the top of the double-roll crusher, in discharging opening and the roller pair breaking of the vibratory sieve
Collecting bin is provided between machine, vibratory sieve is connected with double-roll crusher, the bulk gangue thing for being easy to Vibration Screen to select
Material, conveys into double-roll crusher and further crushes, the discharging opening of the double-roll crusher is arranged on the top of transport mechanism, described
Transport mechanism is arranged on the bottom of carrier bed frame, vibration screening and the gangue material after crushing is exported, the magnetic separator de-ironing
Structure is arranged on the top of the transport mechanism in front of double-roll crusher, and Deironing mechanism is set close to transport mechanism, to adsorb transmission
Magnet metal in the gangue material of mechanism conveying, the spraying mechanism are arranged on top and the double-roll crusher of vibratory sieve
Top, with to just carrying out spraying and dedusting in the material of vibration screening and broken material.
2. gangue mixed material as claimed in claim 1 screens crushing dust collection device, it is characterised in that：In the vibration
Sieve lower section is additionally provided with chute, and chute is arranged on the top of transport mechanism, and the upper end of the chute connects with vibratory sieve, will shake
The dynamic small-particle coal spoil material filtered out is delivered to transport mechanism.
3. gangue mixed material as claimed in claim 2 screens crushing dust collection device, it is characterised in that：The conveyer
Structure includes big transmission belt and small transmission belt, and the big transmission belt is fixed on the bottom of whole carrier bed frame by fixed connecting rod,
Transferred out with the small-particle coal spoil for sliding the chute, the small transmission band logical crosses fixed connecting rod and is fixed on big transmission
On carrier bed frame with top, and the lower section of double-roll crusher is arranged on, the coal gangue particle of roller pair breaking crusher machine is defeated
Deliver in big transmission belt, and then transferred out by big transmission belt.
4. gangue mixed material as claimed in claim 3 screens crushing dust collection device, it is characterised in that：In the two pairs of rollers
Protective cover is provided with above disintegrating machine, hurts surrounding people to avoid in shattering process coal gangue particle from spilling, protective cover includes
Horizontal metal plate and two structure identical curved surface metal plates, horizontal metal plate are fixed on carrier bed frame in the horizontal direction,
The centre position of horizontal metal plate is provided with opening, is connected with coordinating with the collecting bin, two curved surface metal plates are symmetricly set on
The both sides of double-roll crusher, and be fixedly connected with horizontal metal plate, two curved surface metal plates fasten to be separated among the bottom got up
Material flow export, so that the coal gangue particle after roller pair breaking crusher machine is fallen by material flow export, material flow export is set
In the top of small transmission belt, so that the coal gangue particle fallen to be transferred out by small transmission belt.
5. gangue mixed material as claimed in claim 4 screens crushing dust collection device, it is characterised in that：The spray thrower
Structure includes the first water service pipe, some first shower nozzles, the second water service pipe, some second shower nozzles, is fixedly arranged above in the vibratory sieve
First water service pipe, several described first shower nozzles are symmetricly set on the both sides of the first water service pipe, and some first shower nozzles are uniformly arranged
In the side wall of the first water service pipe, the opening direction of first shower nozzle tilts down setting, fully to eliminate vibratory sieve screening
During dust, and liquid water stream plays a part of lubrication to gangue, is easy to the conveying of gangue, in the roller pair breaking
The second water service pipe is set in the side wall of the horizontal metal plate of machine, some second shower nozzles are set in the side wall of the second water service pipe, with
The dust in double-roll crusher shattering process is fully eliminated, and lubrication is played a part of to coal gangue particle, is easy to gangue
Conveying.
6. gangue mixed material as claimed in claim 5 screens crushing dust collection device, it is characterised in that：The magnetic separator de-ironing
Structure is fixed on the carrier bed frame above big transmission belt by fixed connecting rod, passes through company between Deironing mechanism and fixed connecting rod
Connection device is flexibly connected, and attachment means include adapter sleeve, connecting rod and link, and adapter sleeve is enclosed in fix bar, adapter sleeve
Lower end is fixedly connected with the connecting rod, and the top of link offers connecting hole, and connecting rod is inserted the connecting hole, consolidated with link
Fixed connection, and can be relatively rotated between connecting rod and link, link is cube shape framework, and four sides of link are all opened
There is connecting hole, connection steel cable is penetrated in the connecting hole of the link, magnet is hung up by connecting steel cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392820.9U CN206763087U (en) | 2017-04-14 | 2017-04-14 | Gangue mixed material screens crushing dust collection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392820.9U CN206763087U (en) | 2017-04-14 | 2017-04-14 | Gangue mixed material screens crushing dust collection device |
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| CN206763087U true CN206763087U (en) | 2017-12-19 |
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| CN201720392820.9U Active CN206763087U (en) | 2017-04-14 | 2017-04-14 | Gangue mixed material screens crushing dust collection device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672024A (en) * | 2018-06-14 | 2018-10-19 | 潘旭康 | A kind of coal crushing device with sorting function |
| CN108726122A (en) * | 2018-06-12 | 2018-11-02 | 贵州大学 | A kind of coal mining transport device with screening function |
| CN108993739A (en) * | 2018-07-26 | 2018-12-14 | 何莉 | A kind of multi-functional preparation equipment |
| CN108993737A (en) * | 2018-07-26 | 2018-12-14 | 何莉 | A kind of classifier separator |
| CN109126986A (en) * | 2018-11-02 | 2019-01-04 | 贵州大学 | A kind of mining industry solid waste screening plant |
| CN109209374A (en) * | 2018-10-26 | 2019-01-15 | 刘刚 | One kind is outdoor, underground ore in sand form is shelled, adopted, selecting, multiple all-in-one machine |
| CN109655323A (en) * | 2018-12-25 | 2019-04-19 | 中北大学 | Portable coal powder sample preparation and device for fast detecting |
| CN109701685A (en) * | 2018-12-26 | 2019-05-03 | 万正河 | A kind of architectural engineering building rubbish treatment device with Anti-blockage function |
| CN111974531A (en) * | 2020-08-05 | 2020-11-24 | 昆明理工大学 | Slag granulating and crushing equipment |
| CN112517204A (en) * | 2020-11-12 | 2021-03-19 | 安徽大学 | High-diving-level area soil reclamation device and reclamation method thereof |
| CN113044515A (en) * | 2021-05-10 | 2021-06-29 | 淄博大力矿山机械有限公司 | Environment-friendly industrial sand making equipment |
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2017
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726122A (en) * | 2018-06-12 | 2018-11-02 | 贵州大学 | A kind of coal mining transport device with screening function |
| CN108672024A (en) * | 2018-06-14 | 2018-10-19 | 潘旭康 | A kind of coal crushing device with sorting function |
| CN108993739A (en) * | 2018-07-26 | 2018-12-14 | 何莉 | A kind of multi-functional preparation equipment |
| CN108993737A (en) * | 2018-07-26 | 2018-12-14 | 何莉 | A kind of classifier separator |
| CN109209374A (en) * | 2018-10-26 | 2019-01-15 | 刘刚 | One kind is outdoor, underground ore in sand form is shelled, adopted, selecting, multiple all-in-one machine |
| CN109126986A (en) * | 2018-11-02 | 2019-01-04 | 贵州大学 | A kind of mining industry solid waste screening plant |
| CN109655323A (en) * | 2018-12-25 | 2019-04-19 | 中北大学 | Portable coal powder sample preparation and device for fast detecting |
| CN109701685A (en) * | 2018-12-26 | 2019-05-03 | 万正河 | A kind of architectural engineering building rubbish treatment device with Anti-blockage function |
| CN111974531A (en) * | 2020-08-05 | 2020-11-24 | 昆明理工大学 | Slag granulating and crushing equipment |
| CN112517204A (en) * | 2020-11-12 | 2021-03-19 | 安徽大学 | High-diving-level area soil reclamation device and reclamation method thereof |
| CN113044515A (en) * | 2021-05-10 | 2021-06-29 | 淄博大力矿山机械有限公司 | Environment-friendly industrial sand making equipment |
| CN113044515B (en) * | 2021-05-10 | 2022-09-06 | 淄博大力矿山机械有限公司 | Environment-friendly industrial sand making equipment |
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Effective date of registration: 20211213 Granted publication date: 20171219 |