CN110215999A - A kind of Machine-made Sand lapicide's skill of short route - Google Patents
A kind of Machine-made Sand lapicide's skill of short route Download PDFInfo
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- CN110215999A CN110215999A CN201910529135.XA CN201910529135A CN110215999A CN 110215999 A CN110215999 A CN 110215999A CN 201910529135 A CN201910529135 A CN 201910529135A CN 110215999 A CN110215999 A CN 110215999A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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Abstract
A kind of Machine-made Sand lapicide's skill of short route, it is related to sandstone production technology field more particularly to a kind of mechanism sandstone production technology.There are the long equipment used of crushing circuit the invention aims to solving the problem of current mechanism sandstone production technology more, maintenance personnel mostly and is also easy to produce dust and causes environmental pollution.Method: step 1: broken process；Step 2: comminution trimming；Step 3: screening process for the first time；Step 4: circulating process；Step 5: second of screening process.Present invention process process is short, and 1~2 time fewer than traditional process broken, and equipment used in the present invention is few, and fewer than traditional process 30% or more number of devices, the present invention solves the problems, such as human cost, and maintenance personnel can reduce 40% or more；The present invention can reduce dust than traditional handicraft, more environmentally protective.The present invention is suitable for mechanism sandstone.
Description
Technical field
The present invention relates to sandstone production technology field more particularly to a kind of mechanism sandstone production technologies.
Background technique
Machine-made Sand refers to the sand being process by sand making machine and other auxiliary devices, and finished product is more regular, Ke Yigen
The sand for being processed into Different Rule and size is required according to different process, is more able to satisfy daily demand.Machine-made Sand production line has vibration
The equipment such as batcher, jaw crusher, sand making machine, vibrating screen and adhesive-tape machine are composed.It is required according to different technique,
The equipment of various models is combined, and meets the different process requirement of client.Firstly, building stones be tentatively crushed by boulder crusher,
Then, the coarse fodder produced is delivered to fine crusher by rubber conveyer and is further crushed, it is fine crushing after building stones into Vibration Screen
Two kinds of stones are separated, meet the stone system sand Machine-made Sand of sand making machine feed size, another part returning charge is into thin slope.Into sand making machine
Stone a part sand is made, through sand washer it is (optional) cleaning after finished sand is made, another part is crushed again into sand making machine.Mesh
Before, traditional mechanism sandstone production technology needs to be crushed for 3~4 times, and crushing circuit is long, and the equipment used is more, maintenance personnel is more, easily
It is obvious to generate the shortcomings that dust causes environmental pollution.
Summary of the invention
It is long that there are crushing circuits the invention aims to solving current mechanism sandstone production technology, the equipment used is more,
Maintenance personnel mostly and is also easy to produce the problem of dust causes environmental pollution, and provides a kind of Machine-made Sand lapicide's skill of short route.
A kind of Machine-made Sand lapicide's skill of short route is completed by the following steps:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening
Equipment sieves Mischung, obtains product c2 and product c3；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
It is carried out after being mixed the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant second
Screening, obtains product d1, product d2 and product d3；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
Further, crusher described in step 1 is selected from gyratory crusher, jaw crusher, hammer mill and anti-
One or more of impact crusher.
Further, granularity≤350mm of ore a described in step 1.
Further, rubble trimmer described in step 2 is selected from the one or two of semi-autogenous mill and autogenous tumbling mill.
Further, ore a obtained in step 1 and water are mixed in step 2, the mass ratio of ore a and water is 1:
(0.65~0.95).
Further, in mixture b described in step 2 ore granularity≤150mm.
Further, screening plant described in step 3 be sieve, sieve be selected from straight line shaker, circular vibrating screen, resonance screens and
One or both of probability screen；The sieve is equipped with Double-layer screen, and the upper screen aperture of sieve is 25mm~90mm, sieve
The lower screen aperture of son is 5mm~75mm.
Further, screening plant described in step 4 be sieve, sieve be selected from straight line shaker, circular vibrating screen, resonance screens and
One or both of probability screen；The sieve is equipped with Double-layer screen, and the upper screen aperture of sieve is 25mm~90mm, sieve
The lower screen aperture of son is 5mm~75mm.
Further, the mass ratio of product c1 and the water mixing obtained step 3 in step 4, product c1 and water is 1:
(0.65~0.95)；The granularity of ore≤product c2 granularity in the Mischung.
Further, screening plant described in step 5 be sieve, sieve be selected from straight line shaker, circular vibrating screen, resonance screens and
One or both of probability screen；The sieve is equipped with Double-layer screen, and the upper screen aperture of sieve is 0.5mm~50mm,
The lower screen aperture of sieve is 0.03mm~37.5mm.
Compared with prior art, the beneficial effects of the present invention are:
(1), present invention process process is short, and 1~2 time fewer than traditional process broken；
(2), the equipment used in the present invention is few, fewer than traditional process 30% or more number of devices；
(3), the present invention solves the problems, such as human cost, and maintenance personnel can reduce 40% or more；
(4), the present invention can reduce dust than traditional handicraft, more environmentally protective.
The present invention is suitable for mechanism sandstone.
Specific embodiment
Specific embodiment 1: present embodiment is a kind of Machine-made Sand lapicide's skill of short route, it is to complete according to the following steps
:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening
Equipment sieves Mischung, obtains product c2 and product c3；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
It is carried out after being mixed the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant second
Screening, obtains product d1, product d2 and product d3；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
Compared with prior art, the beneficial effect of present embodiment is:
(1), present embodiment process flow is short, and 1~2 time fewer than traditional process broken；
(2), equipment used in present embodiment is few, fewer than traditional process 30% or more number of devices；
(3), present embodiment solves the problems, such as human cost, and maintenance personnel can reduce 40% or more；
(4), present embodiment can reduce dust than traditional handicraft, more environmentally protective.
Present embodiment is suitable for mechanism sandstone.
Specific embodiment 2: the differences between this implementation mode and the specific implementation mode are that: it is described in step 1 broken
Machine is selected from one or more of gyratory crusher, jaw crusher, hammer mill and impact breaker.Other steps with
Specific embodiment one is identical.
Specific embodiment 3: one of present embodiment and specific embodiment one or two difference are: institute in step 1
Granularity≤350mm of the ore a stated.Other steps are the same as one or two specific embodiments.
Specific embodiment 4: one of present embodiment and specific embodiment one to three difference are: institute in step 2
The rubble trimmer stated is selected from the one or two of semi-autogenous mill and autogenous tumbling mill.Other steps and specific embodiment one to three-phase
Together.
Specific embodiment 5: one of present embodiment and specific embodiment one to four difference are: will in step 2
The mass ratio of ore a obtained in step 1 and water mixing, ore a and water is 1:(0.65~0.95).Other steps and specific
Embodiment one to four is identical.
Specific embodiment 6: one of present embodiment and specific embodiment one to five difference are: institute in step 2
Granularity≤150mm of ore in the mixture b stated.Other steps are identical as specific embodiment one to five.
Specific embodiment 7: one of present embodiment and specific embodiment one to six difference are: institute in step 3
The screening plant stated is sieve, and sieve is selected from one or both of straight line shaker, circular vibrating screen, resonance screens and probability screen；Described
Sieve is equipped with Double-layer screen, and the upper screen aperture of sieve is 25mm~90mm, the lower screen aperture of sieve be 5mm~
75mm, and upper screen aperture is greater than lower screen aperture.Other steps are identical as specific embodiment one to six.
Specific embodiment 8: one of present embodiment and specific embodiment one to seven difference are: institute in step 4
The screening plant stated is sieve, and sieve is selected from one or both of straight line shaker, circular vibrating screen, resonance screens and probability screen；Described
Sieve is equipped with Double-layer screen, and the upper screen aperture of sieve is 25mm~90mm, the lower screen aperture of sieve be 5mm~
75mm, and upper screen aperture is greater than lower screen aperture.Other steps are identical as specific embodiment one to seven.
Specific embodiment 9: one of present embodiment and specific embodiment one to eight difference are: will in step 4
The mass ratio of product c1 and the water mixing that step 3 obtains, product c1 and water is 1:(0.65~0.95)；In the Mischung
The granularity of ore≤product c2 granularity.Other steps are identical as specific embodiment one to eight.
Specific embodiment 10: one of present embodiment and specific embodiment one to nine difference are: institute in step 5
The screening plant stated is sieve, and sieve is selected from one or both of straight line shaker, circular vibrating screen, resonance screens and probability screen；Described
Sieve is equipped with Double-layer screen, and the upper screen aperture of sieve is 0.5mm~50mm, the lower screen aperture of sieve be 0.03mm~
37.5mm, and upper screen aperture is greater than lower screen aperture.Other steps are identical as specific embodiment one to nine.
Below by specific embodiment, the present invention is described in more detail.
Embodiment one: a kind of Machine-made Sand lapicide's skill of short route is completed by the following steps:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Crusher described in step 1 is selected from gyratory crusher；
Granularity≤300mm of ore a described in step 1；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Rubble trimmer described in step 2 is selected from semi-autogenous mill；
Ore a obtained in step 1 and water are mixed in step 2, the mass ratio of ore a and water is 1:0.85；
Granularity≤70mm of ore in mixture b described in step 2；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
Screening plant described in step 3 is sieve, and sieve is selected from straight line shaker；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 37.5mm, and the lower screen aperture of sieve is 19mm；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening
Equipment sieves Mischung, obtains product c2 and product c3；
Screening plant described in step 4 is sieve, and sieve is selected from straight line shaker；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 37.5mm, and the lower screen aperture of sieve is 19mm；
The mass ratio of product c1 and the water mixing for obtaining step 3 in step 4, product c1 and water is 1:0.85；It is described
Mischung in ore granularity≤product c2 granularity；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
It is carried out after being mixed the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant second
Screening, obtains product d1, product d2 and product d3；
Screening plant described in step 5 is sieve, and sieve is selected from straight line shaker；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 5m, and the lower screen aperture of sieve is 0.074mm；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
Embodiment one obtains four kinds of products, and wherein product d2 granularity is 0.074~5mm, and product d1 granularity is 5~19mm,
Product c2 granularity is 19~37.5mm, product d3 < 0.074mm.
Embodiment two: a kind of Machine-made Sand lapicide's skill of short route is completed by the following steps:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Crusher described in step 1 is selected from gyratory crusher；
Granularity≤250mm of ore a described in step 1；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Rubble trimmer described in step 2 is autogenous tumbling mill；
Ore a obtained in step 1 and water are mixed in step 2, the mass ratio of ore a and water is 1:0.78；
Granularity≤60mm of ore in mixture b described in step 2；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
Screening plant described in step 3 is circular vibrating screen；The sieve is equipped with Double-layer screen, the upper screen of sieve
Aperture is 31.5mm, and the lower screen aperture of sieve is 9.5mm；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening
Equipment sieves Mischung, obtains product c2 and product c3；
Screening plant described in step 4 is circular vibrating screen；The sieve is equipped with Double-layer screen, the upper screen of sieve
Aperture is 31.5mm, and the lower screen aperture of sieve is 9.5mm；
The mass ratio of product c1 and the water mixing for obtaining step 3 in step 4, product c1 and water is 1:0.78；It is described
Mischung in ore granularity≤product c2 granularity；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
It is carried out after being mixed the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant second
Screening, obtains product d1, product d2 and product d3；
Screening plant described in step 5 is circular vibrating screen；The sieve is equipped with Double-layer screen, the upper screen of sieve
Aperture is 5mm, and the lower screen aperture of sieve is 0.074mm；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
Embodiment two obtains four kinds of products, wherein product d2 granularity be 0.074~5mm, product d1 granularity be 5~
9.5mm, product c2 granularity are 9.5~31.5mm, product d3 < 0.074mm.
Embodiment three: a kind of Machine-made Sand lapicide's skill of short route is completed by the following steps:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Crusher described in step 1 is selected from gyratory crusher；
Granularity≤330mm of ore a described in step 1；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Rubble trimmer described in step 2 is autogenous tumbling mill；
Ore a obtained in step 1 and water are mixed in step 2, the mass ratio of ore a and water is 1:0.85；
Granularity≤70mm of ore in mixture b described in step 2；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
Screening plant described in step 3 is sieve, and sieve is selected from resonance screens；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 63mm, and the lower screen aperture of sieve is 26.5mm；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening
Equipment sieves Mischung, obtains product c2 and product c3；
Screening plant described in step 4 is sieve, and sieve is selected from resonance screens；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 63mm, and the lower screen aperture of sieve is 26.5mm；
The mass ratio of product c1 and the water mixing for obtaining step 3 in step 4, product c1 and water is 1:0.85；It is described
Mischung in ore granularity≤product c2 granularity；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
It is carried out after being mixed the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant second
Screening, obtains product d1, product d2 and product d3；
Screening plant described in step 5 is resonance screens；The sieve is equipped with Double-layer screen, the upper screen of sieve
Aperture is 5mm, and the lower screen aperture of sieve is 0.15mm；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
Embodiment three obtains four kinds of products, wherein product d2 granularity be 0.15~5mm, product d1 granularity be 5~
26.5mm, product c2 granularity are 26.5~63mm, product d3 < 0.15mm.
Example IV: a kind of Machine-made Sand lapicide's skill of short route is completed by the following steps:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Crusher described in step 1 is selected from gyratory crusher；
Granularity≤200mm of ore a described in step 1；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Rubble trimmer described in step 2 is autogenous tumbling mill；
Ore a obtained in step 1 and water are mixed in step 2, the mass ratio of ore a and water is 1:0.85；
Granularity≤60mm of ore in mixture b described in step 2；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
Screening plant described in step 3 is sieve, and sieve is selected from resonance screens；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 20mm, and the lower screen aperture of sieve is 10mm；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening
Equipment sieves Mischung, obtains product c2 and product c3；
Screening plant described in step 4 is sieve, and sieve is selected from resonance screens；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 20mm, and the lower screen aperture of sieve is 10mm；
The mass ratio of product c1 and the water mixing for obtaining step 3 in step 4, product c1 and water is 1:0.85；It is described
Mischung in ore granularity≤product c2 granularity；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
It is carried out after being mixed the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant second
Screening, obtains product d1, product d2 and product d3；
Screening plant described in step 5 is sieve, and sieve is selected from resonance screens；The sieve is equipped with Double-layer screen, sieve
The upper screen aperture of son is 4mm, and the lower screen aperture of sieve is 0.074mm；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
Example IV obtains four kinds of products, wherein and product d2 granularity is 0.074~4mm, and product d1 granularity is 4~10mm,
Product c2 granularity is 10~20mm, product d3 < 0.074mm.
Claims (10)
1. a kind of Machine-made Sand lapicide's skill of short route, it is characterised in that a kind of Machine-made Sand lapicide's skill of short route is according to the following steps
It completes:
Step 1: broken process:
Ore is crushed by crusher, obtains ore a；
Step 2: comminution trimming:
Ore a and the water mixing that step 1 is obtained, then by rubble trimmer, obtain mixture b；
Step 3: process is sieved for the first time:
The mixture b that step 2 obtains is sieved using screening plant, obtains product c1, product c2 and product c3；
The granularity of the granularity > product c3 of the granularity > product c2 of product c1 described in step 3；
Step 4: circulating process:
Product c1 and the water mixing that step 3 is obtained, then by rubble trimmer, obtain Mischung；Reuse screening plant
Mischung is sieved, product c2 and product c3 are obtained；
The granularity of the granularity > product c3 of product c2 described in step 4；
Step 5: second of screening process:
Second is carried out after mixing the product c3 that step 3 the obtains and product c3 that step 4 obtains using screening plant to sieve,
Obtain product d1, product d2 and product d3；
The granularity of the granularity > product d3 of the granularity > product d2 of product d1 described in step 5.
2. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that described in step 1 broken
Broken machine is selected from one or more of gyratory crusher, jaw crusher, hammer mill and impact breaker.
3. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that mine described in step 1
Granularity≤350mm of stone a.
4. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that broken described in step 2
Stone trimmer is selected from the one or two of semi-autogenous mill and autogenous tumbling mill.
5. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that by step 1 in step 2
Obtained in ore a and water mixing, the mass ratio of ore a and water is 1:(0.65~0.95).
6. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that mixed described in step 2
Close granularity≤150mm of ore in object b.
7. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that sieve described in step 3
Subset is sieve, and sieve is selected from one or both of straight line shaker, circular vibrating screen, resonance screens and probability screen；The sieve is set
There is Double-layer screen, the upper screen aperture of sieve is 25mm~90mm, and the lower screen aperture of sieve is 5mm~75mm, and on
Layer mesh size is greater than lower screen aperture.
8. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that sieve described in step 4
Subset is sieve, and sieve is selected from one or both of straight line shaker, circular vibrating screen, resonance screens and probability screen；The sieve is set
There is Double-layer screen, the upper screen aperture of sieve is 20mm~90mm, and the lower screen aperture of sieve is 5mm~75mm, and on
Layer mesh size is greater than lower screen aperture.
9. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that by step 3 in step 4
The mass ratio of obtained product c1 and water mixing, product c1 and water is 1:(0.65~0.95)；Ore in the Mischung
Granularity≤product c2 granularity.
10. a kind of Machine-made Sand lapicide's skill of short route according to claim 1, it is characterised in that sieve described in step 5
Subset is sieve, and sieve is selected from one or both of straight line shaker, circular vibrating screen, resonance screens and probability screen；The sieve is set
Have a Double-layer screen, the upper screen aperture of sieve is 0.5mm~50mm, the lower screen aperture of sieve be 0.03mm~
37.5mm, and upper screen aperture is greater than lower screen aperture.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135934A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made gravel production process |
| CN111135930A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made sand stone crushing, shaping and screening production process |
| CN111135929A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made sand stone shaping and screening production process |
| CN111135935A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made sand stone shaping, screening and crushing production process |
| CN111135932A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made sand and stone secondary crushing and secondary screening production process |
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