CN109876917A - A kind of high-quality sandstone aggregate impacts dry milling production line and processing method entirely - Google Patents
A kind of high-quality sandstone aggregate impacts dry milling production line and processing method entirely Download PDFInfo
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- CN109876917A CN109876917A CN201910152955.1A CN201910152955A CN109876917A CN 109876917 A CN109876917 A CN 109876917A CN 201910152955 A CN201910152955 A CN 201910152955A CN 109876917 A CN109876917 A CN 109876917A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000009837 dry grinding Methods 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 76
- 239000004576 sand Substances 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 14
- 230000000875 corresponding Effects 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 11
- 238000007493 shaping process Methods 0.000 claims description 9
- 230000001105 regulatory Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 210000000988 Bone and Bones Anatomy 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 29
- 239000004575 stone Substances 0.000 description 6
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 210000003491 Skin Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Abstract
The invention discloses a kind of high-quality sandstone aggregates to impact dry milling production line and processing method entirely, including raw material cabin and grizzly feeder, the fine material outlet of grizzly feeder is connect with desliming screen, coarse fodder outlet lower section is equipped with double counterattack equipment, the first screening plant is equipped with below the discharge port of double counterattack equipment, the super partial size material discharge port of first screening plant is connected by circulation the feed inlet of double counterattack equipment, and small particle material discharge port is connected to double impact devices by transfer feed bin；The discharge port of double impact devices is connected by the second screening plant with corresponding finished product sand material storehouse；Integrated artistic of the present invention is simple, and the multiple desliming of material can be achieved and be crushed by double strike back, and carry out sand processed using double speed double frequency crushing process, effectively improve production efficiency and product quality, energy conservation and environmental protection, production chains are high, practical.
Description
Technical field
The present invention relates to a kind of high-quality sandstone aggregates to impact dry milling production line and processing method entirely, belongs to broken system
Sand production equipment, sand technical field of producing processed.
Background technique
Currently, traditional sandstone aggregate production line generallys use grizzly feeder and carries out simply in sandstone aggregate production
After desliming, material is uniformly fed to coarse crushing crusher and is crushed, the broken routine of coarse crushing is crushed using coarse crushing Hubei Province, coarse crushing
The broken discharge in Hubei Province enters that circular cone is broken or counterattack is broken carry out in it is broken, discharge enters after screening system sieved, and minus mesh enters list
Constant speed vertical shaft is broken to carry out broken shaping, and discharge enters screen house and sieved, and it is broken broken that oversize material again returns to constant speed vertical shaft,
Qualified products enter finished bin by finished belt machine, oversize material by return conveyer machine be transmitted back in broken circular cone it is broken or counterattack is broken
Broken, the advantages of this conventional crushing production line is that system is simple, saves equipment investment, but configures single, and product quality can not
Guarantee, energy consumption is high, and there are many defects: (1) coarse crushing being carried out to material using Hubei Province is broken, smashing principle based on attrition crushing,
There are the latent defects such as crackle for broken product, and product elongated particles are high, and particle shape is poor, and reduction ratio is small, allow to feed partial size
It is small, to small powder can not attrition crushing and directly pass through, influence the efficiency and finished product sandstone quality of subsequent sand processed；(2) single host is (normal
Fast vertical shaft is broken) technique can only single-stage crushing, it is small that constant speed vertical shaft breaks reduction ratio, produces that sand contribution rate is low, and treating capacity is low, mentions if necessary
High yield, it is necessary to reduce feed size and just be able to achieve, single stage crushing must just be increased by reducing feed size, equally also be will increase and set
Standby investment；Simultaneously: single vertical shaft is broken finished product ratio is adjusted, and also finished product gradation can not be adjusted.If forced
It adjusts, treating capacity can be lower, can not play the broken best crushing efficiency of vertical shaft.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of this high-quality sandstone aggregates to impact dry milling production line entirely
And processing method, it can be with overcome the deficiencies in the prior art.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions: a kind of high-quality sandstone aggregate
Full impact dry milling production line, including raw material cabin, rear is equipped with grizzly feeder, the rod under the discharge port of raw material cabin
The fine material outlet of batcher is connect with desliming screen, and coarse fodder outlet lower section is equipped with double counterattack equipment, the discharging of double counterattack equipment
Mouthful lower section be equipped with the first screening plant, the super partial size material discharge port of the first screening plant be connected by circulation it is double counterattack equipment into
Material mouth, small particle material discharge port are connected to double impact devices；The discharge port of double impact devices passes through the second screening plant
It is connected with corresponding finished product sand material storehouse；And the super partial size material discharge port of the second screening plant is connected by circulation double impact devices
Feed inlet；
Its co-operating PLC control system is connect above equipment with control.
Aforementioned double counterattack equipment include that the broken counterattack broken in of coarse crushing counterattack is broken, and the coarse fodder outlet of grizzly feeder is anti-with coarse crushing
Break up connection；It is equipped with the first screening plant below the broken discharge port of the broken counterattack broken in of coarse crushing counterattack, the first screening plant surpasses
Partial size material discharge port be connected by circulation in the broken feed inlet of broken counterattack, small particle material discharge port is connected to by transfer feed bin
Double impact devices.
Aforementioned double impact devices include that constant speed vertical shaft is broken and high-speed high frequency vertical shaft is broken, and transfer feed bin discharge hole is connected to constant speed
The broken feed inlet of vertical shaft；The discharge port that constant speed vertical shaft is broken and high-speed high frequency vertical shaft is broken is connect with the second screening plant, the second screening
The super partial size Matter Transfer of equipment is connected to constant speed vertical shaft and breaks feed inlet, each finished product sandstone aggregate discharge port and corresponding finished sand
Stone aggregate bin connects or is connected by circulation high-speed high frequency vertical shaft and breaks feed inlet.
Aforementioned second screening plant is the vibrating screen of four layers of arrangement above, and discharging shuttle slot is provided with threeway regulating device.
The processing method that high-quality sandstone aggregate above-mentioned impacts dry milling production line entirely comprising following steps:
S1, material pretreatment: raw material carries out multiple desliming by desliming device, double counterattack equipment and the first screening plant, is crushed
And screening；
The material that s2, pretreatment are completed passes through double impact devices and is crushed, and high-quality sandstone aggregate mixture is made；
S3, the high-quality sandstone aggregate mixture are sieved by the second screening plant, and high-quality sandstone aggregate is made；It is right
The finished product of super demand is recycled into double impact devices and continues to be crushed in finished product sandstone aggregate.
In abovementioned steps s1, raw material from the discharge port of raw material cabin after a grizzly feeder pre-screening, super partial size material
It is rough and torn that broken progress is struck back into coarse crushing, and is sieved by the first screening plant, while broken counterattack is broken in the entrance of super partial size material
Circulation is broken.
In abovementioned steps s2 and s3, broken shaping is carried out to material using constant speed vertical shaft is broken, and set with the second screening
Standby sieved is high-quality sandstone aggregate and oversize material, and oversize Matter Transfer enters conventional vertical shaft and is crushed.
The threeway regulating device to be discharged on shuttle slot by adjusting aforementioned second screening plant, adjusts discharging ratio, at
The finished product of super demand is recycled into double impact devices and continues to be crushed in product sandstone aggregate.
Compared with the prior art, the present invention discloses a kind of high-quality sandstone aggregate and impacts dry milling production line and processing entirely
Method comprising raw material cabin, under the discharge port of raw material cabin rear be equipped with grizzly feeder, the fine material outlet of grizzly feeder with
Desliming screen connection, coarse fodder outlet lower section are equipped with double counterattack equipment, are equipped with the first screening below the discharge port of double counterattack equipment
Equipment, the super partial size material discharge port of first screening plant are connected by circulation feed inlet, the small particle object of double counterattack equipment
Material discharge port is connected to the feed inlet of double impact devices by transfer feed bin；The discharge port of double impact devices passes through the second sieve
Subset is connected with corresponding finished product sand material storehouse.Wherein, the broken counterattack broken in of double counterattack equipment coarse crushing counterattacks is broken, small particle object
The processing route of material is grizzly feeder-desliming screen；The processing route of super partial size material is grizzly feeder-coarse crushing counterattack
Broken-the first screening plant, material is tentatively broken after the preliminary desliming screening of grizzly feeder, then through the broken progress of coarse crushing counterattack,
And separated super partial size material and small particle material screening by the first screening plant, super partial size material passes through in circulatory system entrance
The multiple desliming of realization material is broken in broken counterattack, which solve the prior arts to use coarse crushing Hubei Province is broken to be limited by openings of sizes for broken and shaping
Do not have the problem of desliming function again, it can be ensured that the cleaning of subsequent handling material, grain shape are good, and then have in subsequent sand process processed
Effect improves sand efficiency processed and chiltern amount processed；Double impact devices include that constant speed vertical shaft is broken and high-speed high frequency vertical shaft is broken, are used
Double speed double frequency crushing process, conventional vertical shaft is broken to be mainly used for mixed material and is crushed that shaping, high-speed high frequency vertical shaft is broken is then mainly used for
Small particle material high-efficiency aggregate reclaiming can effectively increase system crushing efficiency, improve production capacity, while guaranteeing the gradation of finished sand
Continuously.
Integrated artistic of the present invention is simple, not only can effectively improve sand efficiency and quality processed, but also energy conservation and environmental protection, specific
It has the advantages that:
(1) equipment is struck back by desliming screen+bis- impacts, it can be achieved that the multiple desliming of material and being crushed, can effectively reduced inside aggregate
The damage of structure can generate more quality sand and stone aggregates, wherein coarse crushing is broken using coarse crushing counterattack, and reduction ratio is big, feeds grain
Diameter is big；Counterattack is broked into impact grinding, and aggregate crack defect can be effectively reduced, and counterattack is broked into impact grinding, and charging partial size is big, is crushed
Than big, crushing plant and ancillary equipment investment can be reduced to greatest extent, reduces the broken load of junior's broken process, guarantee entire
The product quality of production line and the cost of investment for reducing whole system.Its processing capacity is strong, and the requirement to raw material is low, especially suitable
In big clod, include mud material block, it can be ensured that subsequent material cleaning, grain shape are good, and low energy consumption, and manufacturing cost is low.
(2)+broken the shaping sand-making of the broken joint of high-speed high frequency vertical shaft is broken by conventional vertical shaft, conventional vertical shaft is broken to be mainly used for mixing
It closes material and is crushed shaping, high-speed high frequency vertical shaft breaks main small particle material high-efficiency aggregate reclaiming, and the material of different-grain diameter is used
Two sand making machines of friction speed and frequency joint is broken, gives full play to the broken reduction ratio performance of vertical shaft, takes into account and break to material
The Machine-made Sand gradation of broken and shaping, production is reasonable, and product elongated particles height, finished sand in traditional technology for making sand is solved perfectly
The unreasonable problem of the gradation of " being small at both ends and big in the middle "；It realizes the best reduction ratio of sand production line processed, gives full play to equipment high efficiency
Area, it is ensured that system has optimization process ability and lowest energy consumption and production run cost, realizes that finished sand wide variety metaplasia produces,
Production chains are high, and substantially increase system production capacity, practical.
Detailed description of the invention
Fig. 1 is workflow schematic diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description:
As shown in Figure 1, a kind of full impact grinding full-dry method high-quality sandstone aggregate production line, including raw material cabin 1, in raw material cabin 1
Discharge port under rear be equipped with grizzly feeder 2, double counterattack equipment 3, desliming screen 4, the first screening plant 5, transfer feed bin
6, double impact devices 7, the second screening plant 8, tripper 9, powder concentrator 10 and the operating skin for connecting each equipment material mouth
Band machine, and its co-operating PLC control system is connect above equipment with control.
The grizzly feeder 2 is used to shake raw material uniformly, and carries out simple desliming, the grizzly feeder 2
Fine material outlet connect with desliming screen 4, coarse fodder outlet lower section be equipped with is connect with double counterattack equipment 3, in double counterattack equipment 3
Discharge port below be equipped with the first screening plant 5, double counterattack equipment 3 include coarse crushing counterattack broken 301 and in broken counterattack it is broken
302, first screening plant 5 includes No.1 vibrating screen 501 and No. two vibrating screens 502；The coarse fodder of grizzly feeder 2 goes out
Mouth is connect with coarse crushing counterattack broken 301；Belt conveyor is set below the discharge port of coarse crushing counterattack broken 301, discharge enters No.1 vibration
Dynamic sieve 501, the super partial size material discharge port of No.1 vibrating screen 501 be connected by circulation in broken counterattack broken 302 feed inlet, in
The discharge of broken counterattack broken 302 enters No. two vibrating screens 502, small particle under the sieve of No.1 vibrating screen 501 and No. two vibrating screens 502
Material discharge port is connected to double impact devices 7 by transfer feed bin 6, and specifically, double impact devices 7 include simultaneously
Column setting in constant speed vertical shaft broken 701 and high-speed high frequency vertical shaft broken 702, transfer feed bin 6 be connected to constant speed vertical shaft broken 701 into
Material mouth；The discharge port of constant speed vertical shaft broken 701 passes through the second screening plant 8 and corresponding finished sand rubble feed bin 11, rice building stones storehouse
12 and fine work sand feed bin 13 connect；The coarse fodder of second screening plant 8 returns to constant speed vertical shaft broken 701 and is crushed again.
Second screening plant 8 is the vibrating screen of four layers of arrangement above, and discharging shuttle slot is equipped with threeway regulating device,
The threeway regulating device is for adjusting finished product high-quality sandstone aggregate discharging ratio, for gradation fines extra in finished sand
(3-5mm) and meter Shi (5-15mm) can return to the broken progress aggregate reclaiming of high-speed high frequency vertical shaft by threeway regulating device, or enter
Corresponding finished product bin.Double speed double frequency aggregate reclaiming system can make full use of the best high efficient district of equipment and optimal use operating condition,
Ensure that system has maximum processing capability and lowest energy consumption, produces good sandstone aggregate.
The processing method of full-dry method high-quality sandstone aggregate based on above-mentioned production line, specifically includes the following steps:
S1, material pretreatment: raw material carries out multiple desliming by desliming device, double counterattack equipment 3 and the first screening plant 5, breaks
Broken and screening；
Specifically, raw material completes preliminary desliming, super partial size object from the discharge port of raw material cabin 1 after 2 pre-screening of a grizzly feeder
Material enters coarse crushing counterattack broken 301 and carries out rough and torn, and is sieved by the first screening plant 5, and the first screening plant 5 is by the small of screening
Broken broken 302 circulation of counterattack is broken during partial size material is stored in transfer feed bin 6, super partial size material enters；One grizzly feeder, 2 bottom goes out
Mouthful small particle material enter desliming screen 4 and carry out secondary desliming, waste material enters waste bin 14, unclassified stores by operating belt into
Broken counterattack broken 302 in entering；
The material that s2, pretreatment are completed broken, shaping by double impact devices 7, is made fine work sand, rubble and rice stone mixture；
S3, the mixture are sieved by the second screening plant 8, and finished product fine work sand, rubble and meter Shi is made；Simultaneously for
Being again introduced into double impact devices 7 in finished product sandstone aggregate after the rubble of super demand and rice stone sub-material, to carry out circulation broken；
Specifically, the material of transfer feed bin 6 enters constant speed vertical shaft broken 701, and fine work sand, rubble, meter Shi and super partial size material is made
Mixture, and being sieved with the second screening plant 8 is fine work sand, rubble, meter Shi and super partial size material, super partial size material material
Being again introduced into conventional vertical shaft broken 701, to carry out circulation broken；And it can according to need by adjusting the second screening plant 8 discharging shuttle
Threeway regulating device on slot adjusts the discharging ratio of rubble, meter Shi and fine work sand, again for rubble extra in finished sand
It carries out circulation into conventional vertical shaft broken 701 to be crushed, extra rice stone returns to the broken 702 circulation aggregate reclaimings of high-speed high frequency vertical shaft.
Claims (8)
1. a kind of high-quality sandstone aggregate impacts dry milling production line, including raw material cabin (1), the discharging in raw material cabin (1) entirely
Rear is equipped with grizzly feeder (2) under mouthful, it is characterised in that: the fine material outlet of the grizzly feeder (2) and desliming screen (4) are even
It connects, coarse fodder outlet lower section is equipped with double counterattacks equipment (3), is equipped with the first screening below the discharge port of double counterattacks equipment (3) and sets
Standby (5), the super partial size material discharge port of the first screening plant (5) are connected by circulation the feed inlet of double counterattacks equipment (3), small particle
Material discharge port is connected to double impact devices (7)；The discharge port of double impact devices (7) by the second screening plant (8) with
The connection of corresponding finished product sand material storehouse；And the super partial size material discharge port of the second screening plant (8) is connected by circulation double impacts and sets
Standby (7) feed inlet；
Its co-operating PLC control system is connect above equipment with control.
2. the high-quality sandstone aggregate impacts dry milling production line entirely according to claim 1, it is characterised in that: described
Double counterattack equipment (3) include coarse crushing strike back broken (301) and in it is broken strike back broken (302), the coarse fodder outlet of grizzly feeder (2) with slightly
It is broken to strike back broken (301) connection；Coarse crushing strike back broken (301) and in be equipped with first below the broken discharge port for striking back broken (302) and sieve and set
Standby (5), the super partial size material discharge port of the first screening plant (5) be connected by circulation in the broken feed inlet for striking back broken (302), granule
Diameter material discharge port is connected to double impact devices (7) by transfer feed bin (6).
3. high-quality sandstone aggregate according to claim 2 impacts dry milling production line entirely, it is characterised in that: described
Double impact devices (7) include that constant speed vertical shaft broken (701) and high-speed high frequency vertical shaft break (702), the connection of transfer feed bin (6) discharge port
The feed inlet of (701) is broken to constant speed vertical shaft；Constant speed vertical shaft breaks (701) and high-speed high frequency vertical shaft breaks the discharge port and second of (702)
Screening plant (8) connection, the super partial size Matter Transfer of the second screening plant (8) are connected to constant speed vertical shaft and break (701) feed inlet, respectively
Finished product sandstone aggregate discharge port connect or be connected by circulation with corresponding finished product sandstone aggregate bin high-speed high frequency vertical shaft break (702) into
Material mouth.
4. high-quality sandstone aggregate according to claim 3 impacts dry milling production line entirely, it is characterised in that: described
Second screening plant (8) is the vibrating screen of four layers of arrangement above, and discharging shuttle slot is provided with threeway regulating device.
5. a kind of impact dry milling processing method based on any high-quality sandstone aggregate of claim 1-4 entirely, special
Sign is, comprising the following steps:
S1, material pretreatment: raw material is repeatedly taken off by desliming device, double counterattack equipment (3) and the first screening plant (5)
Mud, broken and screening；
The material that s2, pretreatment are completed passes through double impact devices (7) and is crushed, and high-quality sandstone aggregate mixture is made；
S3, the high-quality sandstone aggregate mixture are sieved by the second screening plant (8), and high-quality sandstone bone is made
Material；The finished product of super demand in finished product sandstone aggregate is recycled into double impact devices (7) and continues to be crushed.
6. the high-quality sandstone aggregate according to claim 5 impacts dry milling processing method entirely, it is characterised in that: step
In rapid s1, for raw material from the discharge port of raw material cabin (1) after a grizzly feeder (2) pre-screening, super partial size material enters coarse crushing
It is rough and torn to strike back broken (301) progress, and screening desliming is carried out by the first screening plant (5), while is broken anti-in the entrance of super partial size material
It is broken to break up (302) circulation.
7. the high-quality sandstone aggregate according to claim 5 impacts dry milling processing method entirely, it is characterised in that: step
In rapid s2 and s3, (701) are broken using constant speed vertical shaft, broken shaping are carried out to material, and with the second screening plant (8) by its
Screening is high-quality sandstone aggregate and oversize material, and oversize Matter Transfer enters conventional vertical shaft broken (701) and is crushed.
8. high-quality sandstone aggregate according to claim 7 impacts dry milling processing method entirely, it is characterised in that: logical
The threeway regulating device on the second screening plant (8) discharging shuttle slot is overregulated, discharging ratio is adjusted, in finished product sandstone aggregate
The finished product of super demand, which is recycled into double impact devices, to be continued to be crushed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152955.1A CN109876917A (en) | 2019-02-28 | 2019-02-28 | A kind of high-quality sandstone aggregate impacts dry milling production line and processing method entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152955.1A CN109876917A (en) | 2019-02-28 | 2019-02-28 | A kind of high-quality sandstone aggregate impacts dry milling production line and processing method entirely |
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| Publication Number | Publication Date |
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| CN109876917A true CN109876917A (en) | 2019-06-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910152955.1A Pending CN109876917A (en) | 2019-02-28 | 2019-02-28 | A kind of high-quality sandstone aggregate impacts dry milling production line and processing method entirely |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215997A (en) * | 2019-06-18 | 2019-09-10 | 日昌升集团有限公司 | A kind of Machine-made Sand lapicide's skill of self raising flour dirt |
| CN110639675A (en) * | 2019-08-16 | 2020-01-03 | 中国电建集团华东勘测设计研究院有限公司 | Fine concrete aggregate processing system and fine concrete aggregate system processing method |
| CN111940064A (en) * | 2020-07-23 | 2020-11-17 | 江苏山宝集团有限公司 | Processing technology of high-quality aggregate |
| CN112536132A (en) * | 2020-11-18 | 2021-03-23 | 中国水利水电第九工程局有限公司 | Machine-made sand shell breaking and core retaining desliming system and desliming process thereof |
| CN112844735A (en) * | 2020-12-24 | 2021-05-28 | 中昊黑元化工研究设计院有限公司 | Carbon black ultrafine grinding system and process |
| CN113275119A (en) * | 2021-06-29 | 2021-08-20 | 中国水利水电第九工程局有限公司 | Online quality control preparation system of grit processing extra fine workshop |
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2019
- 2019-02-28 CN CN201910152955.1A patent/CN109876917A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215997A (en) * | 2019-06-18 | 2019-09-10 | 日昌升集团有限公司 | A kind of Machine-made Sand lapicide's skill of self raising flour dirt |
| CN110639675A (en) * | 2019-08-16 | 2020-01-03 | 中国电建集团华东勘测设计研究院有限公司 | Fine concrete aggregate processing system and fine concrete aggregate system processing method |
| CN110639675B (en) * | 2019-08-16 | 2022-06-10 | 中国电建集团华东勘测设计研究院有限公司 | Fine concrete aggregate processing system and fine concrete aggregate system processing method |
| CN111940064A (en) * | 2020-07-23 | 2020-11-17 | 江苏山宝集团有限公司 | Processing technology of high-quality aggregate |
| CN112536132A (en) * | 2020-11-18 | 2021-03-23 | 中国水利水电第九工程局有限公司 | Machine-made sand shell breaking and core retaining desliming system and desliming process thereof |
| CN112844735A (en) * | 2020-12-24 | 2021-05-28 | 中昊黑元化工研究设计院有限公司 | Carbon black ultrafine grinding system and process |
| CN113275119A (en) * | 2021-06-29 | 2021-08-20 | 中国水利水电第九工程局有限公司 | Online quality control preparation system of grit processing extra fine workshop |
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