CN112916394A - Construction process for dry-process powder removal of semi-dry type sand making - Google Patents
Construction process for dry-process powder removal of semi-dry type sand making Download PDFInfo
- Publication number
- CN112916394A CN112916394A CN202110121764.6A CN202110121764A CN112916394A CN 112916394 A CN112916394 A CN 112916394A CN 202110121764 A CN202110121764 A CN 202110121764A CN 112916394 A CN112916394 A CN 112916394A
- Authority
- CN
- China
- Prior art keywords
- sand
- machine
- screening machine
- dry
- conveyor belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 132
- 239000000843 powder Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000001035 drying Methods 0.000 title claims description 19
- 238000012216 screening Methods 0.000 claims abstract description 99
- 239000004575 stone Substances 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 9
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 21
- 238000007873 sieving Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 29
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000005406 washing Methods 0.000 description 10
- 239000010865 sewage Substances 0.000 description 7
- 235000013312 flour Nutrition 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- 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
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- 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
Abstract
The invention discloses a construction process for dry powder removal of semi-dry sand making, which uses a system for dry powder removal of semi-dry sand making and comprises the following steps: firstly, crushing the master batch by a crusher in a closed workshop by a forklift, then screening for the first time by an aggregate screening machine to obtain ordinary medium sand, and quickly transporting the medium sand to a medium sand storage bin by a transport belt machine B for storage; step two, controlling the adjustment amount of fine sand separated by the aggregate screening machine by a conveyor belt machine A, conveying the fine sand and stone powder into an airflow screening machine for screening, and quickly conveying the stone powder by a conveyor belt machine D and storing the stone powder into a stone powder bin; thirdly, screening, grading, proportioning and adjusting the fine sand screened out by the air screening machine in a fine sand screening machine to form special sand, and quickly transporting and storing the special sand into a special sand silo by a conveyor belt machine F; solves the problems of the prior production process such as increased production cost, resource waste and increased energy consumption.
Description
Technical Field
The invention relates to a construction process for dry-process powder removal of semi-dry sand making, belonging to the technical field of artificial sandstone production.
Background
The special sand is a product with different grading quality requirements from the conventional sand, the particle size of the special sand is smaller and is generally below 10 meshes (2.0mm), and the stone powder content of the special sand is required to be controlled within 1-6%; due to the rapid development of the building industry, the production technology of the special sand is rapidly developed and started, and products such as quartz sand, silica sand, carborundum and the like in the market belong to special sand series; in addition, due to the fact that new technology, new products and new technology are developed rapidly, special sand molds needed in engineering construction are more and more, such as dry-mixed mortar sand, gunite plastering sand, concrete pile defect repairing grouting sand and the like, common sand cannot meet the special requirements of the engineering construction, and existing special sand production enterprises basically adopt the production processes of crushing, screening, washing, drying and packaging, wherein the washing method brings a series of problems, and firstly, a large amount of industrial wastewater is generated, so that the environmental protection problem is brought, and the production cost is greatly improved by sewage treatment; secondly, fine sand below 150um can be washed away by adopting water washing, thereby not only affecting the grading quality of the sand, but also causing resource waste; thirdly, the process flow of washing with water and then drying is adopted, so that the energy consumption is improved.
Disclosure of Invention
In order to solve the technical problem, the invention provides a construction process for dry-process powder removal of semi-dry sand making.
The invention is realized by the following technical scheme.
The invention provides a construction process for dry-process powder removal of semi-dry-type sand making, which uses the system for dry-process powder removal of semi-dry-type sand making and comprises the following steps:
firstly, crushing the master batch by a crusher in a closed workshop by a forklift, then screening for the first time by an aggregate screening machine to obtain ordinary medium sand, and quickly transporting the medium sand to a medium sand storage bin by a transport belt machine B for storage;
step two, controlling the adjustment amount of fine sand separated by the aggregate screening machine by a conveyor belt machine A, conveying the fine sand and stone powder into an airflow screening machine for screening, and quickly conveying the stone powder by a conveyor belt machine D and storing the stone powder into a stone powder bin;
and thirdly, screening, grading, proportioning and adjusting the fine sand screened out by the air through the airflow screening machine in a fine sand screening machine to form special sand, and quickly transporting and storing the special sand into a special sand silo through a conveyor belt F.
The above-mentioned system of dry-process deliming of half dry-type system sand, includes: the outlet end of the crusher corresponds to the material inlet of the aggregate screening machine, the fine material outlet of the aggregate screening machine corresponds to the material inlet of the airflow screening machine, and the fine sand outlet of the airflow screening machine corresponds to the material inlet of the fine sand screening machine.
Crushing the master batch by a crusher, and then carrying out primary screening in an aggregate screening machine to obtain ordinary medium sand by classification; screening fine sand and stone powder in an airflow screening machine; the fine sand screened out by the air screening machine is screened, graded, proportioned and adjusted by a fine sand screening machine to form special sand.
The crusher is a coarse crushing, medium crushing and fine crushing process unit consisting of a jaw crusher, an impact crusher/cone crusher and a sand making machine or a unit constructed by single equipment, and the crusher is a hammer crusher.
The aggregate screening machine is a circular vibrating screen or a linear vibrating screening machine.
The fine sand screening machine is a linear high-frequency screening machine or a linear vibration screening machine.
The outlet end of the crusher is correspondingly provided with a conveyor belt machine A, and the other end of the conveyor belt machine A is positioned on the aggregate screening machine, so that the conveyor belt machine A can be controlled conveniently to adjust the conveying amount.
One end of a conveyor belt machine B is correspondingly installed below a common medium sand discharge port of the aggregate screening machine, the other end of the conveyor belt machine B is located on a medium sand bin, and common medium sand is rapidly transported to the medium sand bin to be stored through the conveyor belt machine B.
The crusher, the conveyor belt machine A, the aggregate screening machine and the conveyor belt machine B are all installed in a closed workshop, so that dust generated in production can be conveniently concentrated and reduced, and dust pollution is reduced.
The fine material outlet of the aggregate screening machine is connected with the material inlet of the airflow screening machine through a conveyor belt machine C, so that the amount of the material entering the airflow screening machine can be conveniently controlled through the conveyor belt machine C.
The pneumatic screening machine's mountain flour export corresponds installs conveyer D, and the conveyer D other end corresponds with the import of mountain flour feed bin and is connected, is convenient for carry out the rapid transit to the mountain flour and deposits.
The special sand outlet of the fine sand screening machine is provided with the conveyer belt machine F, and the other end of the conveyer belt machine F is correspondingly connected with the inlet of the special sand bin, so that the special sand can be rapidly transported and stored.
The invention has the beneficial effects that: the production process has no water consumption, reduces the production water, and the water consumption of the washed sand is 1m3T, the cost of treating the industrial sewage generated in the sandstone production reaches 5-8 yuan/m3The washing cost and the sewage treatment cost are reduced by 6-10 yuan/t; the accessory product stone powder is recycled by 100 percent to be used as putty powder, so that the additional value of production is provided, and the cost is indirectly reduced; because no water washing is carried out, the production drying cost is reduced, and the coal consumption for drying the stone sand is 6-10 Kg/t, which can be reduced by 3-6 yuan/t; solves the problems of the prior production process such as increased production cost, resource waste and increased energy consumption.
Drawings
FIG. 1 is a schematic diagram of the distribution structure of the system of the present invention;
FIG. 2 is a flow chart of the construction process of the present invention;
in the figure: 1-a forklift; 2-a crusher; 3-conveyor belt machine a; 4-an aggregate screening machine; 5-conveyor belt machine B; 6-a medium sand silo; 7-conveyor belt machine C; 8-airflow sieving machine; 9-conveyor belt machine D; 10-a stone powder bin; 11-fine sand screening machine; 12-conveyor belt machine F; 13-special sand silo; 14-closed workshop.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-2.
The invention provides a system for dry-method powder removal in semi-dry sand making, which comprises: the outlet end of the crusher 2 corresponds to the material inlet of the aggregate screening machine 4, the fine material outlet of the aggregate screening machine 4 corresponds to the material inlet of the airflow screening machine 8, and the fine sand outlet of the airflow screening machine 8 corresponds to the material inlet of the fine sand screening machine 11.
The working principle is as follows: carrying out primary screening on the master batch in an aggregate screening machine 4 after the master batch is crushed by a crusher 2 by transportation equipment such as a forklift 1 and the like, and grading to obtain common medium sand; screening the fine sand separated by the aggregate screening machine 4 and the fine sand and stone powder in an airflow screening machine 8; fine sand screened out by the air screening machine 8 is screened, graded, proportioned and adjusted by a fine sand screening machine 11 to form special sand;
because the whole production process does not use water, the production water is reduced, and the water consumption of the washed sand is 1m3T, the cost of treating the industrial sewage generated in the sandstone production reaches 5-8 yuan/m3(including sludge treatment and slag yard treatment cost), the washing cost and the sewage treatment cost are reduced by 6-10 yuan/t; 100 percent of accessory product stone powder is recycled, is used as a filling material in asphalt concrete, can be used for producing putty powder, can be used for producing stone powder (stone powder with higher fineness requirement) and the like, has certain additional value and can reduce the cost;
because no water washing is carried out, the production drying cost is reduced, and the coal amount for drying the stone sand is 6-10 Kg/t, which can be reduced by 3-6 yuan/t.
Solves the problems of the prior production process such as increased production cost, resource waste and increased energy consumption.
The crusher 2 is a coarse crushing, medium crushing and fine crushing process unit or a unit constructed by single equipment, wherein the coarse crushing, medium crushing and fine crushing process unit is composed of a jaw crusher, an impact crusher/cone crusher and a sand making machine, and the crusher 2 is a hammer crusher.
The aggregate screening machine 4 is a circular vibrating screen or a linear vibrating screening machine.
The fine sand screening machine 11 is a linear high-frequency screening machine or a linear vibration screening machine.
The outlet end of the crusher 2 is correspondingly provided with a conveyor belt machine A3, and the other end of the conveyor belt machine A3 is positioned on the aggregate screening machine 4, so that the conveyor belt machine A3 can be controlled conveniently to adjust the conveying amount.
One end of a conveyor belt B5 is correspondingly installed below a common medium sand discharge port of the aggregate screening machine 4, the other end of the conveyor belt B5 is located on the medium sand silo 6, and common medium sand is rapidly conveyed to the medium sand silo 6 to be stored through the conveyor belt B5.
The crusher 2, the conveyor belt machine A3, the aggregate screening machine 4 and the conveyor belt machine B5 are all installed in the closed workshop 14, so that dust generated in production can be conveniently concentrated and reduced, and dust pollution is reduced.
The fine material outlet of the aggregate screening machine 4 is connected with the material inlet of the airflow screening machine 8 through a conveyor belt machine C7, so that the amount of the material entering the airflow screening machine 8 can be conveniently controlled through the conveyor belt machine C7.
The mountain flour export of air flow screen extension 8 corresponds installs conveyer D9, and the conveyer D9 other end corresponds with the import of mountain flour feed bin 10 and is connected, is convenient for carry out the rapid transit to the mountain flour and deposits.
The special sand outlet of the fine sand screening machine 11 is provided with a conveyer belt machine F12, and the other end of the conveyer belt machine F12 is correspondingly connected with the inlet of the special sand bin 13, so that the special sand can be transported and stored quickly.
A construction process for dry-process powder removal of semi-dry-type sand making uses the system for dry-process powder removal of semi-dry-type sand making, which comprises the following steps:
firstly, crushing master batch by a crusher 2 in a closed workshop 14 by a forklift 1, then carrying out primary screening in an aggregate screening machine 4 to obtain ordinary medium sand, and rapidly transporting the medium sand to a medium sand storage bin 6 by a transport belt machine B5 for storage;
step two, controlling the adjustment amount of fine sand separated by the aggregate screening machine 4 through a conveyor belt machine A3, conveying the fine sand into an airflow screening machine 8 for screening the fine sand and stone powder, and quickly conveying the stone powder separated by the screening machine through a conveyor belt machine D9 to store the stone powder into a stone powder bin 10;
and step three, screening, grading, proportioning and adjusting the fine sand screened by the air flow screening machine 8 in a fine sand screening machine 11 to form special sand, and rapidly transporting and storing the special sand into a special sand silo 13 through a conveyor belt machine F12.
The production process has no water consumption, reduces production water consumption, and water consumption of washed sand is 1m3T, the cost of treating the industrial sewage generated in the sandstone production reaches 5-8 yuan/m3The washing cost and the sewage treatment cost are reduced by 6-10 yuan/t; the accessory product stone powder is recycled by 100 percent to be used as putty powder, so that the additional value of production is provided, and the cost is indirectly reduced; because no water washing is carried out, the production drying cost is reduced, and the coal consumption for drying the stone sand is 6-10 Kg/t, which can be reduced by 3-6 yuan/t; solves the problems of the prior production process such as increased production cost, resource waste and increased energy consumption.
Claims (10)
1. A construction process for dry-process powder removal of semi-dry-type sand making is characterized in that a system for dry-process powder removal of semi-dry-type sand making is used, and the construction process comprises the following steps:
firstly, crushing master batch in a closed workshop (14) by a crusher (2) by a forklift (1), screening in an aggregate screening machine (4) for the first time to obtain ordinary medium sand, and rapidly transporting the medium sand to a medium sand storage bin (6) by a conveyor belt machine B (5) for storage;
step two, controlling the adjustment amount of fine sand separated by an aggregate screening machine (4) through a conveyor belt machine A (3), conveying the fine sand and stone powder into an airflow screening machine (8) for screening, and quickly conveying the stone powder by the screened stone powder through a conveyor belt machine D (9) and storing the stone powder into a stone powder storage bin (10);
and thirdly, fine sand screened out by the air screening machine (8) is screened, graded, proportioned and adjusted in a fine sand screening machine (11) to form special sand, and the special sand is rapidly transported and stored in a special sand silo (13) by a conveyor belt machine F (12).
2. The construction process of the semi-dry type sand making dry method powder removing according to claim 1, characterized in that: the system for dry-method powder removal of semi-dry-type sand making comprises the following steps: the crusher (2), the exit end of the crusher (2) corresponds to the material inlet of the aggregate screening machine (4), the fine material outlet of the aggregate screening machine (4) corresponds to the material inlet of the airflow screening machine (8), and the fine sand outlet of the airflow screening machine (8) corresponds to the material inlet of the fine sand screening machine (11).
3. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: the crusher (2) is a coarse crushing, medium crushing and fine crushing process unit or a unit constructed by single equipment, wherein the coarse crushing, medium crushing and fine crushing process unit is composed of a jaw crusher, an impact crusher/cone crusher and a sand making machine, and the crusher (2) is a hammer crusher.
4. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: the aggregate screening machine (4) is a circular vibrating screen or a linear vibrating screening machine.
5. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: the fine sand screening machine (11) is a linear high-frequency screening machine or a linear vibration screening machine.
6. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: the outlet end of the crusher (2) is correspondingly provided with a conveyor belt machine A (3), and the other end of the conveyor belt machine A (3) is positioned on the aggregate screening machine (4).
7. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: one end of a conveyor belt B (5) is correspondingly installed below a common medium sand discharge port of the aggregate screening machine (4), and the other end of the conveyor belt B (5) is located on a medium sand bin (6).
8. The construction process of the semi-dry type sand making dry method powder removing according to claim 7, characterized in that: the crusher (2), the conveyor belt machine A (3), the aggregate screening machine (4) and the conveyor belt machine B (5) are all installed in a closed workshop (14).
9. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: and a fine material outlet of the aggregate screening machine (4) is connected with a material inlet of the airflow screening machine (8) through a conveyor belt machine C (7).
10. The construction process of the semi-dry type sand making dry method powder removing according to claim 2, characterized in that: a stone powder outlet of the airflow screening machine (8) is correspondingly provided with a belt conveyer D (9), and the other end of the belt conveyer D (9) is correspondingly connected with an inlet of a stone powder bin (10);
a special sand outlet of the fine sand sieving machine (11) is provided with a conveyer belt machine F (12), and the other end of the conveyer belt machine F (12) is correspondingly connected with an inlet of a special sand bin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121764.6A CN112916394A (en) | 2021-01-28 | 2021-01-28 | Construction process for dry-process powder removal of semi-dry type sand making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121764.6A CN112916394A (en) | 2021-01-28 | 2021-01-28 | Construction process for dry-process powder removal of semi-dry type sand making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112916394A true CN112916394A (en) | 2021-06-08 |
Family
ID=76168240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110121764.6A Pending CN112916394A (en) | 2021-01-28 | 2021-01-28 | Construction process for dry-process powder removal of semi-dry type sand making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112916394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950699A (en) * | 2022-04-08 | 2022-08-30 | 浙江华东工程建设管理有限公司 | Double-powder-selecting full-dry-method desilting system and method after coarse crushing of aggregate processing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004202496A (en) * | 2004-03-31 | 2004-07-22 | Kobe Steel Ltd | Sand manufacturing unit |
| CN101795774A (en) * | 2007-09-04 | 2010-08-04 | 寿技研工业株式会社 | Sand making apparatus, sand making method, and made sand |
| CN103624878A (en) * | 2013-11-28 | 2014-03-12 | 三一汽车制造有限公司 | Dry-mixed mortar stirring station and screening and crushing system thereof |
| CN104525342A (en) * | 2015-01-06 | 2015-04-22 | 福建南方路面机械有限公司 | High-quality asphalt fine aggregate production equipment and method |
| CN211563282U (en) * | 2019-12-31 | 2020-09-25 | 郑州砼之杰水工机械有限公司 | Novel machine-made sand production line |
| CN111760667A (en) * | 2020-06-12 | 2020-10-13 | 南昌矿山机械有限公司 | Integral dry-process sand making system |
-
2021
- 2021-01-28 CN CN202110121764.6A patent/CN112916394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004202496A (en) * | 2004-03-31 | 2004-07-22 | Kobe Steel Ltd | Sand manufacturing unit |
| CN101795774A (en) * | 2007-09-04 | 2010-08-04 | 寿技研工业株式会社 | Sand making apparatus, sand making method, and made sand |
| CN103624878A (en) * | 2013-11-28 | 2014-03-12 | 三一汽车制造有限公司 | Dry-mixed mortar stirring station and screening and crushing system thereof |
| CN104525342A (en) * | 2015-01-06 | 2015-04-22 | 福建南方路面机械有限公司 | High-quality asphalt fine aggregate production equipment and method |
| CN211563282U (en) * | 2019-12-31 | 2020-09-25 | 郑州砼之杰水工机械有限公司 | Novel machine-made sand production line |
| CN111760667A (en) * | 2020-06-12 | 2020-10-13 | 南昌矿山机械有限公司 | Integral dry-process sand making system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950699A (en) * | 2022-04-08 | 2022-08-30 | 浙江华东工程建设管理有限公司 | Double-powder-selecting full-dry-method desilting system and method after coarse crushing of aggregate processing system |
| CN114950699B (en) * | 2022-04-08 | 2023-09-08 | 浙江华东工程建设管理有限公司 | Double-powder-selecting full-dry-method desliming system and method after coarse crushing of aggregate processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109290039B (en) | Machining process for machine-made sand stone | |
| CN110813483A (en) | Construction waste crushing and sorting treatment system | |
| CN105478663B (en) | The apparatus and method for reclaiming casting water glass old sand | |
| JP5474036B2 (en) | Coal ash granule production method, concrete product production method using coal ash granulation product, high density / high strength concrete product produced by these production methods, high density / high strength concrete product Method for producing recycled aggregate, and recycled aggregate produced by this production method | |
| CN110976478B (en) | Recycling treatment process for demolition and decoration wastes | |
| CN104907151A (en) | Storied building type sand production line and sand production method thereof | |
| CN108658489A (en) | A kind of production technology making high strength recycled aggregate using construction waste | |
| CN101537653B (en) | Process for recycled concrete wall body sheets of building rubbish | |
| CN108480016A (en) | The efficient rubble sand production technology of factory's formula environment-protecting intelligent | |
| CN105536974A (en) | Dry-method sand manufacturing system | |
| CN105598361A (en) | Device and method for recovering used sodium silicate sand for casting | |
| CN109095826A (en) | A kind of production method of construction garbage brick | |
| CN105498903B (en) | A kind of discarded concrete prepares the system and device and method of reclaimed sand | |
| CN103611721A (en) | Hydraulic separator and construction waste material resource utilization system | |
| CN212237647U (en) | Construction waste treatment system | |
| CN110078452B (en) | Inorganic binder manufactured by classifying and treating building solid waste regenerated aggregate and preparation method thereof | |
| CN106607170B (en) | A kind of aggregate-cement joint production equipment | |
| CN112916394A (en) | Construction process for dry-process powder removal of semi-dry type sand making | |
| CN108569854A (en) | The application of building waste treatment process and gained recycled fine aggregate and reclaimed sand | |
| CN205570434U (en) | System's device of abandonment concrete preparation reclaimed sand | |
| CN203991634U (en) | A kind of high resource utilization system containing civil engineering building refuse | |
| CN214439859U (en) | Dry-process powder removing system for semi-dry type sand making | |
| CN107344820A (en) | Construction refuse resource utilizes disposal system | |
| JP3174493B2 (en) | Method for recovering recycled single-grain crushed stone and method for producing recycled asphalt mixture using this recycled single-grain crushed stone | |
| CN113024138A (en) | Production method for making sand by using tunnel hole slag powder sandstone wet processing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210608 |