CN108355968B - Dry sand making system and method - Google Patents
Dry sand making system and method Download PDFInfo
- Publication number
- CN108355968B CN108355968B CN201810374514.1A CN201810374514A CN108355968B CN 108355968 B CN108355968 B CN 108355968B CN 201810374514 A CN201810374514 A CN 201810374514A CN 108355968 B CN108355968 B CN 108355968B
- Authority
- CN
- China
- Prior art keywords
- sand making
- powder
- sand
- machine
- dust collector
- 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.)
- Active
Links
- 239000004576 sand Substances 0.000 title claims abstract description 161
- 238000000034 method Methods 0.000 title abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 122
- 239000000463 material Substances 0.000 claims abstract description 102
- 239000000428 dust Substances 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 19
- 238000012216 screening Methods 0.000 abstract description 11
- 239000004575 stone Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 15
- 238000007493 shaping process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000013072 incoming material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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
Abstract
The invention relates to a dry sand making system, which comprises a belt feeder, a sand making machine, a three-way valve, a lifter, a V-shaped powder selector, a multifunctional vibrating screen, a material distributing valve, a dynamic powder selector, a cyclone dust collector and a bag dust collector. The invention also provides a dry sand making method. The invention can be suitable for sand making raw materials with different granularity, can realize the production of machine-made sand with different fineness modulus by adjusting the air quantity of a powder concentrator, the rotating speed of the powder concentrator, a material distributing valve and the like of the system, greatly reduces the stone powder content in the finished sand and obtains high-quality machine-made sand. In addition, the powder content in materials entering the vibrating screen and the sand making machine in the sand making process can be reduced, the screening efficiency of the vibrating screen and the sand making efficiency of the sand making machine are improved, and meanwhile, the problems that the load of the powder selecting machine is large, the abrasion of blades of a rotating cage is rapid and the like due to the fact that the incompletely crushed materials enter the sand making sorting system are avoided.
Description
Technical Field
The invention relates to the technical field of sand making, in particular to a dry sand making system and a dry sand making method.
Background
Along with the deep construction of national infrastructure, the demand for sand is huge, in addition, along with the enhancement of environmental protection consciousness, people recognize that sand is a non-renewable natural resource, sand is impossible to fetch sand to rivers without limit, along with the rapid development of concrete technology, the technical requirements of modern concrete on sand are higher and higher, and natural sand capable of meeting the requirements is lower and lower, so that machine-made sand becomes a main source of sand for construction in China. In the way of making sand, the dry method sand is not limited by water source and environment, stone powder generated in the production process can be reasonably utilized, so that water resources and mineral resources are saved to a certain extent, sewage and sludge are not discharged, and the dry method sand is more environment-friendly than the wet method production line, and therefore the dry method sand becomes the main stream sand making way at present.
In the existing dry sand making process, the following problems mainly exist:
1) The adaptability to raw materials is insufficient. In the existing sand making process, most of the sand making process is directly carried out by using the raw materials, and when the content of fine powder or fine materials in the sand making raw materials is high (such as when the raw materials are byproducts of a bone stock line), the sand making and shaping efficiency of the sand making machine are affected by the direct carrying out of the sand making process.
2) The existing sand making process has insufficient sorting and screening efficiency. In the existing sand making system, some sand making devices, sand making methods and sand making devices are only adopted for sedimentation separation, for example, the invention patent with publication number of CN101795774A discloses a sand making device, the invention patent with publication number of CN103611617A discloses a sand making method and a sand making device, the sedimentation separation devices are adopted in the two patent applications, namely, coarse particles and fine particles of the sand making devices are separated from materials by adopting sedimentation separation, fine powder is separated from the materials by adopting negative pressure suction, the separation manner carries out one separation on the materials, the separation of the fine powder is not thorough, and the separated sand still contains more fine powder, so that the quality of finished sand is not facilitated. The invention patent application with publication number of CN 105536974A discloses a dry sand making system, in the invention patent application, materials from a sand making machine firstly enter a vibrating screen for screening, and because the materials contain a certain amount of fine powder, the load of the vibrating screen is large, the screening efficiency is low, meanwhile, the fine powder is separated only by adopting a powder blowing device in the system, the fine powder is not thoroughly separated, the quality of finished sand is affected, and the sand making system is also provided with only one screening, the fineness modulus and other regulating means of the finished sand are limited, and the product type is single.
3) The existing sand making system has single product and limited means for adjusting the types and quality of sand. That is, many existing sand making systems only have one-stage separation systems, so that finished sand is separated, fine powder in the material after sand making is separated, unqualified coarse particles are separated and returned to a sand making machine for re-crushing, and the problems of low material separation efficiency, incomplete separation, single type of finished sand, high content of fine powder in the sand, large system circulation amount and the like possibly exist due to single separation system.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a dry sand making system and a dry sand making method, when the content of fine powder/fine particles in the incoming materials is more, the materials are pre-sorted by adopting a V-shaped powder selector, stone powder in the incoming materials and fine materials which can be used as sand are selected in advance, a sand making machine is not needed, the sorting efficiency is high, the load of the sand making machine is reduced, and the efficiency of the sand making machine is improved; the coarse powder after being separated by the V-shaped powder separator is brought into the dynamic powder separator by wind, so that the material dispersing effect is good, the separation efficiency is high, and the abrasion to a rotating cage of the powder separator is small; coarse powder of the V-shaped powder concentrator enters a multifunctional vibrating screen for screening, the screening load is greatly reduced, the screening efficiency is improved, and the functions of the V-shaped powder concentrator, the dynamic powder concentrator and the vibrating screen are realized.
The technical scheme adopted for solving the technical problems is as follows: the dry sand making system comprises a belt feeder, a sand making machine, a three-way valve, a lifter, a V-shaped powder selector, a multifunctional vibrating screen, a material distributing valve, a dynamic powder selector and a bag dust collector; the feeding port of the three-way valve is connected with the belt feeder, and the two discharging ports of the three-way valve are respectively connected with the feeding port of the sand making machine and the feeding port of the V-shaped powder selecting machine; the discharge port of the sand making machine is connected with the feed port of the V-shaped powder selecting machine through a lifting machine; the air outlet of the V-shaped powder concentrator is connected with the dynamic powder concentrator, and the coarse powder outlet of the V-shaped powder concentrator is connected with the feed inlet of the multifunctional vibrating screen; an air outlet of the dynamic powder concentrator is connected with a bag dust collector, and the dynamic powder concentrator is provided with a coarse material discharge opening and a medium coarse material discharge opening; the multifunctional vibrating screen is internally provided with two layers of screens, the aperture of the upper layer of screen is larger than that of the lower layer of screen, the trapped material outlet of the upper layer of screen is connected with the feed inlet of the sand making machine, the trapped material of the lower layer of screen is connected with the feed inlet of the material distributing valve, and the bottom of the multifunctional vibrating screen is provided with a feed opening; the material distributing valve is provided with two discharge ports, and one of the discharge ports is connected with the feed inlet of the sand making machine.
As a further preferred embodiment, a cyclone separator is also arranged between the dynamic powder separator and the bag dust collector.
As a further preferable implementation scheme, the air outlet of the bag dust collector is connected with an exhaust fan, the outlet of the exhaust fan is divided into two paths, one path is emptied, and the other path is circulated to the V-shaped powder selecting machine.
As a further preferable implementation scheme, a circulating fan is arranged between the air outlet of the cyclone separator and the bag dust collector, the air outlet of the circulating fan is divided into two paths, one path is circulated to the V-shaped powder selecting machine, and the other path enters the bag dust collector.
As a further preferred embodiment, the upper screen has a pore size of 4.75mm and the lower screen has a pore size of 2.36mm.
As a further preferable embodiment, the opening degree of the discharge hole of the material distributing valve is adjustable.
As a further preferred embodiment, the dynamic powder concentrator is provided with a static coarse powder separator at the inlet inside.
The invention also provides a dry sand making method, which utilizes the dry sand making system to make sand, and specifically comprises the following steps:
the sand making raw material is fed into a three-way valve through a belt feeder, and is fed into a V-shaped powder selecting machine through the three-way valve when the raw material has more fine materials; when the fine materials in the raw materials are less, feeding the raw materials into a sand making machine through a three-way valve; crushing and shaping materials by a sand making machine, feeding the crushed and shaped materials into a V-shaped powder selecting machine by a lifter for sorting, taking the sorted fine materials out along with gas by an air outlet, sorting the fine materials by a dynamic powder selecting machine, discharging coarse materials from a coarse material discharging opening, and sieving the coarse materials by a multifunctional vibrating screen; the dynamic powder selector is a three-separation powder selector, fine powder of the materials entering the dynamic powder selector is carried out from an air outlet after being separated by the dynamic powder selector and enters a cyclone dust collector for separation, and residual coarse powder is respectively discharged through a medium coarse material discharge opening and a coarse material discharge opening and is respectively used as finished sand B and finished sand C with different fineness moduli;
screening the materials entering the multifunctional vibrating screen through a two-layer screen (generally, the aperture of an upper-layer screen is 4.75mm, the aperture of a lower-layer screen is 2.36 mm), then, introducing the materials intercepted by the upper-layer screen (the materials with the particle size of more than 4.75 mm) into a sand making machine for re-crushing and shaping, introducing the materials intercepted by the lower-layer screen (the materials with the particle size of 2.36 mm-4.75 mm) into a material distributing valve, and mixing part or all of the materials entering the material distributing valve with the blanking of the multifunctional vibrating screen to form finished sand D;
the material collected by the cyclone dust collector and the bag dust collector is used as a byproduct stone powder.
Further, the method also comprises the step of mixing two or three of the finished sand B, the finished sand C and the finished sand D to form the finished sand A.
The invention has the positive effects that: the multifunctional sand making system can adapt to sand making raw material granularity with different granularity, and when the raw material has more fine materials, the raw material can be selectively fed into the V-shaped powder selecting machine through the three-way valve; when the fine materials in the raw materials are small, the fine materials can be selectively fed into the sand making machine through the three-way valve, so that the content of fine powder entering the sand making machine is reduced, the sand forming efficiency of the sand making machine can be improved, and the powder yield is reduced. In addition, according to the requirement of the finished sand, the B, C, D materials can be singly or mutually mixed to be used as the finished sand, the finished sand with the requirements of different fineness moduli such as middle fineness modulus, coarse fineness modulus and fine fineness modulus can be prepared, and meanwhile, the fineness modulus of the finished sand, namely the quality and fineness modulus of the finished sand can be conveniently adjusted through adjustment of a powder selecting system and a vibrating screen material distributing system. In a word, the invention firstly can adapt to sand making raw materials with different granularity; secondly, the finished sand is divided into a plurality of grain grades, the sand of each grade can be independently used as coarse sand, medium sand and fine sand products according to the grading and fineness modulus requirements of machine-made sand, and the sand of a plurality of different grain grades can be mixed into one finished sand, so that the product has strong selectivity and convenient grading and fineness modulus adjustment; the invention adopts a high-efficiency sorting system, so that the powder content in the finished sand is greatly reduced, the quality and adaptability of the finished sand are improved, meanwhile, the materials discharged from the sand making machine are sorted by adopting air flow and then are screened and classified, the sorting efficiency can be improved, the V-shaped powder sorting machine, the dynamic powder sorting machine and the vibrating screen are mutually matched and have the functions of each other, and the high-efficiency sorting and screening are realized.
Drawings
FIG. 1 is a schematic diagram of a dry sand making system according to example 1;
FIG. 2 is a schematic diagram of the dry sand making system of example 2;
FIG. 3 is a schematic diagram of a dry sand making system according to example 3;
FIG. 4 is a schematic diagram of the dry sand making system of example 4.
In the figure, 1: belt feeder, 2: three-way valve, 3: sand making machine, 4: hoist, 5: v-type powder concentrator, 6: multifunctional vibrating screen, 7: material distributing valve, 8: dynamic powder concentrator, 9: cyclone separator, 10: circulation fan, 11: a bag dust collector; 12: an exhaust fan;
6-1: 6-2 parts of a coarse material discharge hole of a multifunctional vibrating screen: coarse fodder discharge gate in multi-functional shale shaker, 6-3: a fine material outlet of the multifunctional vibrating screen;
8-1: coarse material discharge opening in dynamic powder concentrator, 8-2: coarse material discharge opening of dynamic powder concentrator; 8-3: a static coarse powder separator.
Description of the embodiments
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Examples
Referring to fig. 1, a preferred embodiment 1 of the present invention provides a dry sand making system, which comprises a belt feeder 1, a sand making machine 3, a three-way valve 2, a lifter 4, a V-type powder separator 5, a multifunctional vibrating screen 6, a material distributing valve 7, a dynamic powder separator 8 and a bag dust collector 11; the feed inlet of the three-way valve 2 is connected with the belt feeder 1, and the two discharge outlets of the three-way valve are respectively connected with the feed inlet of the sand making machine 3 and the feed inlet of the V-shaped powder selecting machine 5; the discharge port of the sand making machine 3 is connected with the feed port of the V-shaped powder selecting machine 5 through a lifting machine 4; the air outlet of the V-shaped powder concentrator 5 is connected with the dynamic powder concentrator 8, and the coarse powder outlet of the V-shaped powder concentrator is connected with the feed inlet of the multifunctional vibrating screen 6; the air outlet of the dynamic powder concentrator 8 is connected with a bag dust collector 11, and the dynamic powder concentrator is provided with a coarse material discharge opening 8-2 and a medium coarse material discharge opening 8-1; the multifunctional vibrating screen 6 is internally provided with two layers of screens, the aperture of the upper layer of screen is larger than that of the lower layer of screen, a trapped material outlet (a coarse material outlet 6-1 of the multifunctional vibrating screen) of the upper layer of screen is connected with a feed inlet of the sand making machine 3, a trapped material outlet (a coarse material outlet 6-2 of the multifunctional vibrating screen) of the lower layer of screen is connected with a feed inlet of a material distributing valve 7, and a feed opening (a fine material outlet 6-3 of the multifunctional vibrating screen) is arranged at the bottom of the multifunctional vibrating screen; the material distributing valve is provided with two discharge ports, and one of the discharge ports is connected with the feed inlet of the sand making machine 3.
The air outlet of the bag dust collector 11 is connected with an exhaust fan 12, the outlet of the exhaust fan 12 is divided into two paths, one path is emptied, and the other path is circulated back to the V-shaped powder selecting machine 5.
Examples
Referring to fig. 2, a preferred embodiment 2 of the present invention provides a dry sand making system, and unlike embodiment 1, a cyclone 9 is further provided between the dynamic classifier 8 and the bag house 11.
Examples
Referring to fig. 3, a preferred embodiment 3 of the present invention provides a dry sand making system, unlike embodiment 2, a circulating fan 10 is further disposed between the air outlet of the cyclone separator 9 and the bag dust collector 11, the air outlet of the circulating fan 10 is divided into two paths, one path is circulated back to the V-type powder selecting machine 5, the other path enters the bag dust collector 11, the air outlet of the bag dust collector 11 is connected with an exhaust fan 12, and the gas entering the bag dust collector 11 is directly exhausted through the exhaust fan 12 after dust removal and purification.
Examples
Referring to fig. 4, a preferred embodiment 4 of the present invention provides a dry sand making system, which is different from embodiment 1 in that a static coarse powder separator 8-3 is disposed at an inlet of the dynamic powder separator, and functions as: large particles carried in from the V-shaped powder concentrator collide with blades of the static coarse powder separator and fall back to the V-shaped powder concentrator, so that the number of the large particles entering the dynamic powder concentrator can be reduced, coarse materials in the dynamic powder concentrator and large particle materials in the coarse materials are further reduced, and more accurate classification is realized.
Examples
The preferred embodiment 5 of the invention provides a dry sand making method, which utilizes the dry sand making system to make sand, and specifically comprises the following steps:
the sand making raw material is fed into a three-way valve through a belt feeder, and is fed into a V-shaped powder selecting machine through the three-way valve when the raw material has more fine materials; when the fine materials in the raw materials are less, feeding the raw materials into a sand making machine through a three-way valve; crushing and shaping materials by a sand making machine, feeding the crushed and shaped materials into a V-shaped powder selecting machine by a lifter for sorting, taking the sorted fine materials out along with gas by an air outlet, sorting the fine materials by a dynamic powder selecting machine, discharging coarse materials from a coarse material discharging opening, and sieving the coarse materials by a multifunctional vibrating screen; the dynamic powder selector is a three-separation powder selector, fine powder of the materials entering the dynamic powder selector is carried out from an air outlet after being separated by the dynamic powder selector and enters a cyclone dust collector for separation, and residual coarse powder is respectively discharged through a medium coarse material discharge opening and a coarse material discharge opening and is respectively used as finished sand B and finished sand C with different fineness moduli;
the materials entering the multifunctional vibrating screen are trapped by the upper layer screen and enter a sand making machine for re-crushing and shaping, the materials trapped by the lower layer screen enter a material distributing valve, and part or all of the materials entering the material distributing valve are mixed with the blanking of the multifunctional vibrating screen to form finished sand D;
the material collected by the cyclone dust collector and the bag dust collector is used as a byproduct stone powder.
According to the requirement of the finished sand, B, C, D materials can be independently used as the finished sand, and two or three of the finished sand B, the finished sand C and the finished sand D can be mixed to form the finished sand A.
The middle lower part of the dynamic powder separator is provided with a static coarse powder separator; the opening degree of the discharge hole of the material distribution valve can be adjusted by 0-100%, so that the coarse sand content in the finished sand D can be adjusted, and the fineness modulus can be adjusted.
The invention can be suitable for sand making raw materials with different granularity, can realize the production of machine-made sand with different fineness modulus by adjusting the air quantity of a powder concentrator, the rotating speed of the powder concentrator, a material distributing valve and the like of the system, greatly reduces the stone powder content in the finished sand and obtains high-quality machine-made sand. In addition, the powder content in materials entering the vibrating screen and the sand making machine in the sand making process can be reduced, the screening efficiency of the vibrating screen and the sand making efficiency of the sand making machine are improved, and meanwhile, the problems that the load of the powder selecting machine is large, the abrasion of blades of a rotating cage is rapid and the like due to the fact that the incompletely crushed materials enter the sand making sorting system are avoided.
The foregoing description of the preferred embodiments of the present invention has been presented only to facilitate the understanding of the principles of the invention and its core concepts, and is not intended to limit the scope of the invention in any way, however, any modifications, equivalents, etc. which fall within the spirit and principles of the invention should be construed as being included in the scope of the invention.
Claims (5)
1. The utility model provides a dry process sand making system, includes belt feeder and sand making machine, its characterized in that: the device also comprises a three-way valve, a lifting machine, a V-shaped powder selecting machine, a multifunctional vibrating screen, a material distributing valve, a dynamic powder selecting machine and a bag dust collector; the feeding port of the three-way valve is connected with the belt feeder, and the two discharging ports of the three-way valve are respectively connected with the feeding port of the sand making machine and the feeding port of the V-shaped powder selecting machine; the discharge port of the sand making machine is connected with the feed port of the V-shaped powder selecting machine through a lifting machine; the air outlet of the V-shaped powder concentrator is connected with the dynamic powder concentrator, and the coarse powder outlet of the V-shaped powder concentrator is connected with the feed inlet of the multifunctional vibrating screen; an air outlet of the dynamic powder concentrator is connected with a bag dust collector, and the dynamic powder concentrator is provided with a coarse material discharge opening and a medium coarse material discharge opening; the multifunctional vibrating screen is internally provided with two layers of screens, the aperture of the upper layer of screen is larger than that of the lower layer of screen, the trapped material outlet of the upper layer of screen is connected with the feed inlet of the sand making machine, the trapped material of the lower layer of screen is connected with the feed inlet of the material distributing valve, and the bottom of the multifunctional vibrating screen is provided with a feed opening; the material distribution valve is provided with two discharge ports, and one discharge port is connected with a feed inlet of the sand making machine; the aperture of the upper layer sieve is 4.75mm, and the aperture of the lower layer sieve is 2.36mm; the static coarse powder separator is arranged at the inner inlet of the dynamic powder separator, large particles carried in from the V-shaped powder separator collide with blades of the static coarse powder separator and fall back to the V-shaped powder separator, so that the number of the large particles entering the dynamic powder separator can be reduced, and coarse materials in the dynamic powder separator and large particle materials in the coarse materials are further reduced, and more accurate classification is realized.
2. A dry sand making system according to claim 1, wherein: a cyclone separator is also arranged between the dynamic powder separator and the bag dust collector.
3. A dry sand making system according to claim 1, wherein: the air outlet of the bag dust collector is connected with an exhaust fan, the outlet of the exhaust fan is divided into two paths, one path is emptied, and the other path is circulated to the V-shaped powder selecting machine.
4. A dry sand making system according to claim 2, wherein: a circulating fan is arranged between the air outlet of the cyclone separator and the bag dust collector, the air outlet of the circulating fan is divided into two paths, one path of the circulating fan circulates back to the V-shaped powder selecting machine, and the other path of the circulating fan enters the bag dust collector.
5. A dry sand making system according to any one of claims 1-4, wherein: the opening degree of the discharge hole of the material distributing valve is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374514.1A CN108355968B (en) | 2018-04-24 | 2018-04-24 | Dry sand making system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374514.1A CN108355968B (en) | 2018-04-24 | 2018-04-24 | Dry sand making system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108355968A CN108355968A (en) | 2018-08-03 |
| CN108355968B true CN108355968B (en) | 2024-04-05 |
Family
ID=63009415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374514.1A Active CN108355968B (en) | 2018-04-24 | 2018-04-24 | Dry sand making system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108355968B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109046558B (en) * | 2018-09-07 | 2023-08-25 | 天津水泥工业设计研究院有限公司 | Cement roller press finish grinding system and working method |
| CN109513515A (en) * | 2019-01-08 | 2019-03-26 | 中建材（合肥）粉体科技装备有限公司 | A kind of system being used to prepare desulfurization mountain flour |
| CN109731666B (en) * | 2019-02-28 | 2020-11-24 | 泰安鲁珠保温建材有限公司 | Process for producing machine-made sand aggregate |
| CN110237919A (en) * | 2019-06-05 | 2019-09-17 | 重庆中材参天建材有限公司 | A kind of high quality Machine-made Sand production technology |
| CN110255942A (en) * | 2019-06-05 | 2019-09-20 | 重庆中材参天建材有限公司 | A kind of formula sand production technology |
| CN110711639B (en) * | 2019-10-25 | 2021-05-04 | 江苏吉能达环境能源科技有限公司 | Artificial sand manufacturing process and device |
| CN110841917B (en) * | 2019-12-11 | 2022-05-20 | 江苏金物新材料有限公司 | Clear whitewashed air current grading plant of circulation air feed |
| CN111530597A (en) * | 2020-04-08 | 2020-08-14 | 平邑中联水泥有限公司 | Dry sand making method by environment-friendly recycling of waste limestone |
| CN115055261A (en) * | 2022-04-22 | 2022-09-16 | 浙江博宇机电有限公司 | Large-scale dry-method sand making system and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211312A (en) * | 2014-09-19 | 2014-12-17 | 南京凯盛国际工程有限公司 | Cement outer-circulating semi-finish grinding system of vertical mill |
| CN104556762A (en) * | 2014-12-18 | 2015-04-29 | 北京金隅水泥节能科技有限公司 | Tower-type machine-made sand preparation and grading adjustment system |
| CN204352972U (en) * | 2014-11-26 | 2015-05-27 | 中国中材国际工程股份有限公司 | A kind of roll squeezer-ball mill Joint grinding system configuring many composition dividing powder separating machines |
| CN204487838U (en) * | 2015-03-17 | 2015-07-22 | 上海砼力人工砂装备有限公司 | Integrated-type environmental protection dry method sand production system |
| CN204620156U (en) * | 2015-03-31 | 2015-09-09 | 华润水泥技术研发有限公司 | A kind of cement grinding material circulating system |
| CN204841882U (en) * | 2015-05-11 | 2015-12-09 | 江苏天沃重工科技有限公司 | Building formula system sand 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 |
| CN208583632U (en) * | 2018-04-24 | 2019-03-08 | 南京凯盛国际工程有限公司 | A kind of dry-method sand manufacturing system |
-
2018
- 2018-04-24 CN CN201810374514.1A patent/CN108355968B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211312A (en) * | 2014-09-19 | 2014-12-17 | 南京凯盛国际工程有限公司 | Cement outer-circulating semi-finish grinding system of vertical mill |
| CN204352972U (en) * | 2014-11-26 | 2015-05-27 | 中国中材国际工程股份有限公司 | A kind of roll squeezer-ball mill Joint grinding system configuring many composition dividing powder separating machines |
| CN104556762A (en) * | 2014-12-18 | 2015-04-29 | 北京金隅水泥节能科技有限公司 | Tower-type machine-made sand preparation and grading adjustment system |
| CN204487838U (en) * | 2015-03-17 | 2015-07-22 | 上海砼力人工砂装备有限公司 | Integrated-type environmental protection dry method sand production system |
| CN204620156U (en) * | 2015-03-31 | 2015-09-09 | 华润水泥技术研发有限公司 | A kind of cement grinding material circulating system |
| CN204841882U (en) * | 2015-05-11 | 2015-12-09 | 江苏天沃重工科技有限公司 | Building formula system sand 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 |
| CN208583632U (en) * | 2018-04-24 | 2019-03-08 | 南京凯盛国际工程有限公司 | A kind of dry-method sand manufacturing system |
Non-Patent Citations (1)
| Title |
|---|
| 李瑛娟，宋群玲.《炭素生产机械设备》.东北大学出版社,2017,第37-38页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108355968A (en) | 2018-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108355968B (en) | Dry sand making system and method | |
| CN106179717B (en) | A kind of full level of thermal coal is selected in simplified heavy medium sorting process | |
| CN101869877B (en) | Coal gangue sorting process | |
| CN109331989B (en) | Dry dewatering and deashing process for coal full-size fraction | |
| CN109482494B (en) | Full-particle-level dry method quality-improving and gangue-discharging process for power coal | |
| CN106824508A (en) | A kind of broken mill ore magnetic selection technique of magnetic iron ore | |
| CN208213665U (en) | A kind of gas-dynamic formula Horizontal type winnowing machine | |
| CN112371325A (en) | Power coal grading washing process | |
| CN112844763A (en) | Ore X-ray preselection-crushing system and process thereof | |
| CN109746114A (en) | A kind of difficulty selects steam coal separation technique | |
| CN110523524A (en) | A kind of full grade of anthracite is selected to simplify sorting process | |
| CN104549711B (en) | Gravel production system | |
| CN206882167U (en) | A kind of segmentation screening plant of silicon carbide powder | |
| CN204672415U (en) | Ilmenite combined classification separation system | |
| CN208583632U (en) | A kind of dry-method sand manufacturing system | |
| CN108940555A (en) | Natural flake graphite and flake mica physical dry method for separating | |
| CN109331988A (en) | A kind of metalliferous mineral process of enriching and system based on dry sorting equipment | |
| CN110711639B (en) | Artificial sand manufacturing process and device | |
| CN105268648A (en) | Intelligent lump coal and granular coal grain-level dry separation process | |
| CN210449500U (en) | Coal dressing and desliming system for coal slime reseparation | |
| CN108927281A (en) | A kind of gold mine grinding classification system and grind grading treatment process | |
| CN207071535U (en) | A kind of gravity type grader | |
| CN204620177U (en) | A kind of sandstone production system | |
| CN109482493B (en) | Dry separation process for full-grain-size oil shale | |
| CN219836820U (en) | Material sorting system |
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 | ||
| CB02 | Change of applicant information |
Country or region after: Zhong Guo Address after: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Applicant after: Zhongcai International Intelligent Technology Co.,Ltd. Address before: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Applicant before: NANJING KISEN INTERNATIONAL ENGINEERING Co.,Ltd. Country or region before: Zhong Guo |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |