CN104525342A - High-quality asphalt fine aggregate production equipment and method - Google Patents
High-quality asphalt fine aggregate production equipment and method Download PDFInfo
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- CN104525342A CN104525342A CN201510004725.2A CN201510004725A CN104525342A CN 104525342 A CN104525342 A CN 104525342A CN 201510004725 A CN201510004725 A CN 201510004725A CN 104525342 A CN104525342 A CN 104525342A
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- fine aggregate
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Classifications
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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
-
- 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
- B02C23/02—Feeding devices
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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
-
- 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
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a production process for various asphalt fine aggregates obtained after crushing raw materials. By means of the novel production process, the functions such as aggregate crushing, shaping and screening, aggregate particle surface rock flour removing, aggregate rock flour content controlling, fine aggregate screening, fine aggregate proportional adjusting and rock flour collecting can be achieved in the aggregate production process. High-quality asphalt fine aggregate production equipment comprises an aggregate conveying system, an aggregate crushing system, an air screening system, a coarse aggregate conveying system, a fine aggregate conveying system, a multi-motor screening system, a distributing and adjusting system and a finished aggregate temporary storage system. The high-quality asphalt fine aggregate production equipment is reasonable in structural layout and simplifies the technological process; the asphalt fine aggregates produced through the production equipment and a production method are optimal in performance, and asphalt concrete prepared through the production equipment and the production method is excellent in quality; all system assemblies cooperate excellently, the screening efficiency and accuracy are high, the product proportion is controllable, different production demands are met, the production process is environmentally friendly, and the influence on the environment is small.
Description
Technical field
The meticulous production technology of gathering materials of gained various asphalt after the present invention relates to raw material fragmentation, this novel production process can realize aggregate crusher, shaping in aggregate production process, screening of gathering materials, aggregate particle surface stone flour remove, the content of stone powder that gathers materials control, fine aggregate screening, the functions such as fine aggregate proportion adjustment, stone flour collection.
Background technology
In asphalt, fine aggregate refers to that particle diameter is less than the natural sand of 2.36mm, artificial sand (comprising Machine-made Sand) and aggregate chips.
Bituminous paving is very strict to required requirement of gathering materials, wherein meticulous production of gathering materials always is a difficult problem of bituminous concrete industry, larger difference is there is between each constituent content and actual design proportioning during main crux is to gather materials, cause it in application process, there is multiple restriction, the asphalt nominal particle diameter scope being S16 as specification is 0-3mm, gather materials although traditional handicraft can produce the meticulous of this particle size, but because the uncontrollable asphalt that makes of each constituent content in gathering materials is easy to produce grating variation, and then cause the segregation gathered materials, directly have influence on the volume performance index of compound, this also has very adverse influence to follow-up bituminous coat project quality, therefore, the collection fines of high-quality needs the particle of different-grain diameter size and micro mist to sieve, usually 0.075-0.212mm is divided into, 0.212-0.6mm, 0.6-2.36mm tri-class.
In Conventional process, because demand device structure is complicated, content of stone powder is difficult to control, the existence of the problems such as finished product aggregate grading is changeable, causes its production technology to there is many drawbacks, has had a strong impact on output and the quality of fine work fine aggregate, in order to reach the object of product finely regulating, need in process of production additionally to add multiple stage screening installation, this not only have impact on the output of fine work fine aggregate, and also improves production cost.
Summary of the invention
For overcoming deficiency of the prior art, the invention provides pitch fine work fine aggregate production equipment and the production method thereof of complete set, artistic skill enough realizes the production of fine work fine aggregate in mineral shattering process, stone flour is collected, become more meticulous regulation and control.
For achieving the above object, the technical solution used in the present invention is as follows: pitch fine work fine aggregate production equipment, is characterized in that: comprise induction system of gathering materials, aggregate crusher system, air screening system, coarse fodder induction system, fines induction system, many motors screening system, sub-material regulating system and finished product material scratch system; Described induction system of gathering materials is connected with aggregate crusher system for sending into material to aggregate crusher system; Material after fragmentation is sent in air screening system by described aggregate crusher system; Material screening after fragmentation is coarse fodder, fines and dust by air screening system; Coarse fodder induction system is connected with air screening system and is used for coarse fodder to send into gather materials in induction system; Fines induction system is connected with air screening system and is used for fines to send in many motors screening system; Fines is sieved into the fine aggregate of plurality of specifications by many motors screening system, and by sub-material regulating system by the fine aggregate of same size stored in same finished product material scratch system.
Further, aggregate crusher system comprises a sand main frame processed, and the charging aperture of this sand main frame processed is communicated with induction system of gathering materials, discharging opening is communicated with air screening system.
Further, air screening system involving vibrations batcher and air sieve, this oscillating feeder is arranged between the broken material import that aggregate crusher system and air sieve, and this air sieve is provided with coarse fodder outlet, fines exports and powder outlet.
Further, coarse fodder induction system one end and air sieve coarse fodder export be connected, the other end is connected with induction system of gathering materials; Fines induction system and air sieve fines export be connected, the other end is connected with many motors screening system.
Further, many motors screening system comprises at least one group of fines oscillating feeder and many motors screening machine, and this fines oscillating feeder is connected between the fines import of fines induction system and many motors screening machine.
Further, be provided with the fine aggregate that pan feeding is divided into different size by multilayer screen cloth in many motors screening machine, this many motors screening machine is provided with the fine aggregate outlet that the fine aggregate for different size is discharged.
Further, sub-material regulating system comprises point material conveying device and material distributing valve, and fine aggregate outlet is communicated with finished product material scratch system by this point of material conveying device, and this material distributing valve is installed on the flow direction point material conveying device controlling different size fine aggregate.
Further, also comprise recovery filtration system, this recovery filtration system comprises recovery filter, reduction loop, deduster, dust in described air screening system, many motors screening system screening process passes into recovery filtration system, by recovery filtration system is logical, dust is divided into fines and stone flour, fines via reducing, deliver in many motors screening system, stone flour is delivered in deduster by loop.
Further, recovery filter is provided with one for entering the powder after recovery filter and be separated into the baffle plate of fines or stone flour, and described reduction loop is provided with rotary valve.
The production method of pitch fine work fine aggregate, is characterized in that, selects the pitch fine work fine aggregate production equipment described in the claims 1 to 9 any one, comprises the steps:
Step 1, material is sent in aggregate crusher system by induction system of gathering materials, and aggregate crusher system is broken by material;
Step 2, the material after fragmentation is sent in air screening system, and the material screening after fragmentation is coarse fodder, fines and dust by air screening system;
Step 3, the coarse fodder that step 2 is sieved out by coarse fodder induction system to be sent in induction system of gathering materials again fines that step 2 sieves out by broken, fines induction system back to and is delivered in many motors screening system and again sieve;
Step 4, many motors screening system sieves out the fine aggregate of multiple different-grain diameter specification;
Step 5, sub-material regulating system for control different size meticulous gather materials content ratio, will the fine aggregate of production requirement be met stored in finished product material scratch system, and unnecessary meticulous gathering materials is back to step 1.
From the above-mentioned description of this invention, compared with prior art, pitch fine work fine aggregate production equipment provided by the invention topology layout rationally, simplify technological process, use this equipment and production method thereof to obtain following beneficial effect:
(1) asphaltene fine aggregate performance optimization, prepares gained bituminous concrete best in quality
Supporting by aggregate crusher system and air screening system, the stone flour generation produced in fragmentation, screening process can be controlled accurately, many motors screening system can carry out stable classification to product simultaneously, the fine aggregate property indices of preparation is optimized, good supporting role is played to the quality of subsequent configuration bituminous concrete;
(2) each system component coordinates excellent, screening efficiency and precision high
Coordinate compact between the equipment adopted in the application, functional complete, particularly many motors screening system can improve screening efficiency and precision effectively;
(3) product proportion is controlled, meets different Production requirement
Each system adopted in production procedure involved by the application can according to different occasion, and different demand to become more meticulous adjustment to the output of asphaltene fine aggregate, each component proportion, with satisfied different Production requirement;
(4) production environmental protection, little to ambient influnence
The production technology adopted in the application all considers the impact of dust on surrounding environment at links, carries out dust Control to whole production procedure, produces negative pressure in internal system, stops its pollution to environment.
Accompanying drawing explanation
Fig. 1 is the production procedure schematic diagram of pitch fine work fine aggregate production equipment.
Fig. 2 is that pitch fine work fine aggregate production equipment gathers materials the schematic layout pattern of induction system.
Fig. 3 is the schematic layout pattern of pitch fine work fine aggregate production equipment aggregate crusher system.
Fig. 4 is the schematic layout pattern of pitch fine work fine aggregate production equipment air screening system.
Fig. 5 is the schematic layout pattern of pitch fine work fine aggregate production equipment many motors screening system.
Fig. 6 is the structural representation of pitch fine work fine aggregate production equipment many motors screening machine.
Fig. 7 is the schematic layout pattern of pitch fine work fine aggregate production equipment sub-material regulating system.
Fig. 8 is the schematic layout pattern that pitch fine work fine aggregate production equipment reclaims filtration system.
Fig. 9 is the structural representation of pitch fine work fine aggregate production equipment recovery filter.
Detailed description of the invention
Below by way of detailed description of the invention, the invention will be further described.
Shown in Fig. 9, pitch fine work fine aggregate production equipment, comprises induction system 1 of gathering materials, aggregate crusher system 2, air screening system 3, coarse fodder induction system 4, fines induction system 5, many motors screening system 6, sub-material regulating system 7, finished product material scratch system 8 and reclaims filtration system 9;
Induction system of gathering materials 1 comprises aggregate bin 11 and accumulator conveyer 12, and aggregate bin 11 is connected with aggregate crusher system 2 by this accumulator conveyer 12;
Aggregate crusher system 2 comprises a sand main frame 21 processed, sand main frame 21 processed belongs to the one of vertical shaft impact crusher, sand main frame 21 processed has gather materials import 211 and broken material discharging opening 212, and it gathers materials, and import 211 is communicated with accumulator conveyer 12, broken material discharging opening 212 is communicated with air screening system 3;
Air screening system 3 involving vibrations batcher 31, air sieve 32 and air blast 33, air sieve 32 is provided with broken material import 321, coarse fodder outlet 322, fines outlet 323 and powder outlet 324, this oscillating feeder 31 is arranged between broken material import 321 that sand main frame 21 processed and air sieve, air blast 33 sieve in 32 to air pass into pressure-air, coarse fodder that air sieves 32 exports 322, fines exports 323, powder outlet 324 respectively with coarse fodder induction system 4, fines induction system 5, reclaim filtration system 9 and be connected;
Coarse fodder induction system 4 is connected with accumulator conveyer 12, sends in accumulator conveyer 12 by the coarse fodder that coarse fodder outlet 322 is discharged;
Fines induction system 5 is connected with many motors screening system 6, sends in many motors screening system 6 by the fines that fines outlet 323 is discharged;
Many motors screening system 6 comprises at least one group of fines oscillating feeder 61 and many motors screening machine 62, fines oscillating feeder 61 and many motors screening machine 62 of two groups is provided with in the present embodiment, many motors screening machine 62 has fines import 621, three layers of screen cloth 622, three discharging openings 623, fines oscillating feeder 61 is connected between the fines import 621 of fines induction system 5 and many motors screening machine, equably fines is transported in many motors screening machine 62 by the delivery rate controlling fines oscillating feeder 61, rely on the amplitude regulating the rotating speed of vibrating motor to control screening machine, frequency, and the quantity and quality of final fine work sand is controlled with this, fines is divided into 0.075-0.212mm by three layers of screen cloth 622, 0.212-0.6mm, 0.6-2.36mm tri-kinds of fine work gather materials and are discharged by discharging opening 623 respectively,
Sub-material regulating system 7 comprises point material conveying device 71, material distributing valve 72, coarse fodder loop back device 73, discharging opening 623 is communicated with finished product material scratch system 8 by this point of material conveying device 71, this material distributing valve 72 is for being installed on the controlled baffle plate on point material conveying device 71, for regulating the content ratio in discharging opening 623 between each component, controlling the different size flow direction of gathering materials, the loop back device 73 that gathers materials discharging opening 623 is discharged unnecessary gather materials to be recycled to gather materials in induction system 1;
Finished product material scratch system 8 comprises three fine aggregate temporary storing bins 81, be respectively used to store 0.075-0.212mm, 0.212-0.6mm, the fine aggregate of 0.6-2.36mm tri-kinds of specifications, the fine aggregate of different size of discharging through outlet 623 of gathering materials, under the adjustment of material distributing valve 72, divides with different ratios and delivers to each fine aggregate temporary storing bin 81;
Reclaim filtration system 9 and comprise recovery filter 91, reduction loop 92, deduster 93, described air screening system 3, the dust produced in many motors screening system 6 and each course of conveying passes in recovery filter 91, a baffle plate 911 is provided with in recovery filter 91, enter the mutual collision between dust in recovery filter 91 and baffle plate, and rely on gravity to be divided by dust to elect fines and stone flour as, fines is delivered in many motors screening system 6 via reduction loop 92, reduction loop 92 is provided with rotary valve 921, after being separated, gained stone flour is reclaimed by deduster 93 and delivers in stone flour temporary storing bin 931 under the effect of pulse backblowing.
Above-mentioned accumulator conveyer 12, coarse fodder induction system 4, fines induction system 5, point material conveying device 71, the loop back device 73 that gathers materials are the combination of belt type conveyer, hoisting type conveyer or belt feeder and conveyer.
The production method of pitch fine work fine aggregate, is characterized in that, selects the pitch fine work fine aggregate production equipment described in the claims 1 to 9 any one, comprises the steps:
Step 1, send in sand main frame 21 processed by accumulator conveyer 12 by the material in aggregate bin 1, sand main frame 21 processed is broken by material;
Step 2, material after fragmentation is sent in air sieve 32, material screening after fragmentation is coarse fodder, fines and dust by air screening system, controlled coarse fodder, fines, powder by control air blast 33 air quantity, mesh size size, air-introduced machine air force, thus reached the object of accuracy controlling under air sieve 32 effect;
Step 3, the coarse fodder that step 2 is sieved out by coarse fodder induction system 4 to return in accumulator conveyer 12 again fines that step 2 sieves out by broken, fines induction system 5 and delivers in many motors screening machine 62 and again sieve;
Step 4, many motors screening machine 62 belongs to multilayer and accurately sieves, and sieves out gathering materials of multiple different-grain diameter specification;
Step 5, sub-material regulating system 7 for control different size fine aggregate content ratio, the essence meeting production requirement is gathered materials stored in finished product material scratch system 8, and unnecessary gathering materials is returned to step 1.
The dust produced in step 1 to the operating process of 5 passes in recovery filter 91, unified process, thus complete the recovery of powder and the control of pollution in production process.
Above are only some detailed description of the invention of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading scope.
Claims (10)
1. pitch fine work fine aggregate production equipment, is characterized in that: comprise induction system of gathering materials, aggregate crusher system, air screening system, coarse fodder induction system, fines induction system, many motors screening system, sub-material regulating system and finished product material scratch system; Described
Induction system of gathering materials is connected with aggregate crusher system for sending into material to aggregate crusher system; Material after fragmentation is sent in air screening system by described aggregate crusher system;
Material screening after fragmentation is coarse fodder, fines and dust by air screening system;
Coarse fodder induction system is connected with air screening system and is used for coarse fodder to send into gather materials in induction system;
Fines induction system is connected with air screening system and is used for fines to send in many motors screening system;
Fines is sieved into the fine aggregate of plurality of specifications by many motors screening system, and by sub-material regulating system by the fine aggregate of same size stored in same finished product material scratch system.
2. pitch fine work fine aggregate production equipment according to claim 1, it is characterized in that: described aggregate crusher system comprises a sand main frame processed, the charging aperture of this sand main frame processed is communicated with induction system of gathering materials, discharging opening is communicated with air screening system.
3. pitch fine work fine aggregate production equipment according to claim 1, it is characterized in that: described air screening system involving vibrations batcher and air sieve, this oscillating feeder is arranged between the broken material import that aggregate crusher system and air sieve, and this air sieve is provided with coarse fodder outlet, fines outlet and powder outlet.
4. pitch fine work fine aggregate production equipment according to claim 3, is characterized in that: described coarse fodder induction system one end and air sieve coarse fodder export be connected, the other end is connected with induction system of gathering materials; Fines induction system and air sieve fines export be connected, the other end is connected with many motors screening system.
5. pitch fine work fine aggregate production equipment according to claim 1, it is characterized in that: described many motors screening system comprises at least one group of fines oscillating feeder and many motors screening machine, this fines oscillating feeder is connected between the fines import of fines induction system and many motors screening machine.
6. pitch fine work fine aggregate production equipment according to claim 1, it is characterized in that: be provided with the fine aggregate that pan feeding is divided into different size by multilayer screen cloth in described many motors screening machine, this many motors screening machine is provided with the fine aggregate outlet that the fine aggregate for different size is discharged.
7. pitch fine work fine aggregate production equipment according to claim 6, it is characterized in that: described sub-material regulating system comprises point material conveying device and material distributing valve, fine aggregate outlet is communicated with finished product material scratch system by this point of material conveying device, and this material distributing valve is installed on the flow direction point material conveying device controlling different size fine aggregate.
8. pitch fine work fine aggregate production equipment according to claim 1, it is characterized in that: also comprise recovery filtration system, this recovery filtration system comprises recovery filter, reduction loop, deduster, dust in described air screening system, many motors screening system screening process passes into recovery filtration system, by recovery filtration system is logical, dust is divided into fines and stone flour, fines via reducing, deliver in many motors screening system, stone flour is delivered in deduster by loop.
9. pitch fine work fine aggregate production equipment according to claim or 8, is characterized in that: described recovery filter is provided with one for entering the powder after recovery filter and be separated into the baffle plate of fines or stone flour, and described reduction loop is provided with rotary valve.
10. the production method of pitch fine work fine aggregate, is characterized in that, selects the pitch fine work fine aggregate production equipment described in the claims 1 to 9 any one, comprises the steps:
Step 1, material is sent in aggregate crusher system by induction system of gathering materials, and aggregate crusher system is broken by material;
Step 2, the material after fragmentation is sent in air screening system, and the material screening after fragmentation is coarse fodder, fines and dust by air screening system;
Step 3, the coarse fodder that step 2 is sieved out by coarse fodder induction system to be sent in induction system of gathering materials again fines that step 2 sieves out by broken, fines induction system back to and is delivered in many motors screening system and again sieve;
Step 4, many motors screening system sieves out the fine aggregate of multiple different-grain diameter specification;
Step 5, sub-material regulating system for control different size meticulous gather materials content ratio, will the fine aggregate of production requirement be met stored in finished product material scratch system, and unnecessary meticulous gathering materials is back to step 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004725.2A CN104525342A (en) | 2015-01-06 | 2015-01-06 | High-quality asphalt fine aggregate production equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004725.2A CN104525342A (en) | 2015-01-06 | 2015-01-06 | High-quality asphalt fine aggregate production equipment and method |
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| Publication Number | Publication Date |
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| CN104525342A true CN104525342A (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510004725.2A Pending CN104525342A (en) | 2015-01-06 | 2015-01-06 | High-quality asphalt fine aggregate production equipment and method |
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| CN (1) | CN104525342A (en) |
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| CN104907151A (en) * | 2015-05-11 | 2015-09-16 | 江苏天沃重工科技有限公司 | Storied building type sand production line and sand production method thereof |
| CN107497575A (en) * | 2017-08-02 | 2017-12-22 | 广东省长大公路工程有限公司 | A kind of aggregate production line |
| CN107597376A (en) * | 2017-09-11 | 2018-01-19 | 郑州帆机械设备有限公司 | Machine-made Sand production technology and the production system for implementing the production technology |
| CN108517740A (en) * | 2018-03-27 | 2018-09-11 | 福建南方路面机械有限公司 | A kind of asphalt-regenerating material aggregate regeneration device and method |
| CN112916394A (en) * | 2021-01-28 | 2021-06-08 | 中国水利水电第九工程局有限公司 | Construction process for dry-process powder removal of semi-dry type sand making |
| CN113385286A (en) * | 2021-07-30 | 2021-09-14 | 重庆市涪陵区大业建材有限公司 | Sand and powder refining treatment process and system in dry production of sandstone |
| CN113740192A (en) * | 2020-05-29 | 2021-12-03 | 上海梅山钢铁股份有限公司 | On-line coke particle size detection and thermal reaction sample collection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907151A (en) * | 2015-05-11 | 2015-09-16 | 江苏天沃重工科技有限公司 | Storied building type sand production line and sand production method thereof |
| CN107497575A (en) * | 2017-08-02 | 2017-12-22 | 广东省长大公路工程有限公司 | A kind of aggregate production line |
| CN107597376A (en) * | 2017-09-11 | 2018-01-19 | 郑州帆机械设备有限公司 | Machine-made Sand production technology and the production system for implementing the production technology |
| CN108517740A (en) * | 2018-03-27 | 2018-09-11 | 福建南方路面机械有限公司 | A kind of asphalt-regenerating material aggregate regeneration device and method |
| CN108517740B (en) * | 2018-03-27 | 2023-07-21 | 福建南方路面机械股份有限公司 | Asphalt recycling aggregate recycling equipment and method |
| CN113740192A (en) * | 2020-05-29 | 2021-12-03 | 上海梅山钢铁股份有限公司 | On-line coke particle size detection and thermal reaction sample collection system |
| CN112916394A (en) * | 2021-01-28 | 2021-06-08 | 中国水利水电第九工程局有限公司 | Construction process for dry-process powder removal of semi-dry type sand making |
| CN113385286A (en) * | 2021-07-30 | 2021-09-14 | 重庆市涪陵区大业建材有限公司 | Sand and powder refining treatment process and system in dry production of sandstone |
| CN113385286B (en) * | 2021-07-30 | 2022-10-28 | 重庆市涪陵区大业建材有限公司 | Sand and powder refining treatment process and system in dry production of sandstone |
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Application publication date: 20150422 |