CN104446071A - Dry sand making process - Google Patents
Dry sand making process Download PDFInfo
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- CN104446071A CN104446071A CN201410612742.XA CN201410612742A CN104446071A CN 104446071 A CN104446071 A CN 104446071A CN 201410612742 A CN201410612742 A CN 201410612742A CN 104446071 A CN104446071 A CN 104446071A
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Abstract
The invention discloses a dry sand making process, comprising the following procedures: crushing treatment, sieving treatment, coarse particle humidification treatment and standby dry sand treatment. The process integrates striking, milling and rocking by stones; meanwhile, stone-powder separation is achieved; kinetic energy required by a main engine is greatly reduced; the produced product is stable in grading, good in particle shape, and adjustable in fineness modulus; the overall process adopts a separation technique, so that energy conservation and environmental protection are achieved; the finished product is stable in grading, good in particle shape, and free of needle-like sand, and is a polyhedron, and is similar to a globoid shape; the fineness modulus (2.3-3.0) and the particle content (below 5%) are adjustable; all performance indexes accord with the 'standard of sand for construction' GB14684-2011; the processing cost per ton is saved by 60% in comparison with international and domestic similar products; the sand making cost is greatly reduced; and the crushing application range is wide.
Description
Technical field
The present invention relates to a kind of preparation technology of material of construction, particularly relate to a kind of preparation technology of concrete Machine-made Sand.
Background technology
At present, along with environmental protection consciousness is strengthened, river sand resource is more and more in short supply, add chinese concrete vocation low-level competition, quality is difficult to again control, along with building develops to high level, also high performance is required for concrete material, dry-mixed mortar industry and bituminous pavement transportation industry, advanced production equipment is all needed to substitute old device fabrication high-quality Machine-made Sand, traditional simple combination sand machine has vertical sand machine processed, impact breaker and impact crusher, although can crushing effect be reached, but this broken system is single, whole system adopts serial connection method, entirety is exposed in atmospheric environment, easily cause environmental pollution, whole production line floor space is large, energy consumption is high, cost is large, use single, fragmentation cannot be carried out at river sand, particularly sandstone field, produce in mountain, make not easily to promote the use.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of with broken, mill, stone-crash-stone shaping integrated, finished sand grating is stable, particle shape is good, finished product is that polyhedron is close to globoid, fineness modulus be 2.3 ~ 3.0 and containing grain amount adjustable below 5%, the satisfactory preparation technology of property indices.
In order to solve the problems of the technologies described above, implemented by the following technical programs:
A kind of dry method producing sand process, this manufacture craft comprises following operation:
Step one: break process;
First, raw material block stone is delivered in charging bucket elevator by belt transport equipment, its block stone magnitude range 10-20cm, charging bucket elevator is connected with integrated broken main frame, by charging bucket elevator, block stone is transported in integrated broken main frame, be provided with strong stirring, disintegrating apparatus and dust removal installation in the broken main frame of integration, integrated broken main frame is connected with integrated manipulator and operated by its integral type control platform and controls, and realizes industry and calculates and operation monitoring;
Step 2: screening process;
After the broken main frame fragmentation of integration, block stone is pulverized as coarse particles or fine particle, and the broken main frame two ends of described integration are provided with gets powder system and classification screen(ing) machine, and its fine particle is delivered to be got in powder system, carries out stone flour discharging for subsequent use; Its coarse particles enters in classification screen(ing) machine, particle diameter is added stone at more than 40mm sand and enters material return system feed back, re-starts step one fragmentation, screening process;
Step 3: coarse particles adds wet treatment;
A footpath≤0.6mm coarse particles is delivered in humidifier, humidifier is without dust and pollution-free equipment, particle is washed, becomes 2.36-0.6mm and 0.6-0.15mm Machine-made Sand fines, and fines after washing is directly delivered in finished product heap by environmental protection discharging belt conveyer;
Step 4: be for subsequent usely dry mixed sand process;
In classification screen(ing) machine, a part of fine particle enters in dry-mixed mortar device for subsequent use by pipeline, and this fine particle is dry powder, for subsequent use by dry-mixed mortar sand outlet discharging for subsequent use.
In step one, described block of stone raw material is cobble, grouan, Wingdale.
In step one, dust removal installation is negative pressure bugduster apparatus.
Raw material block stone inlet amount scope is 60-30t/h, and its load scope is 42-240t/h, and dedusting doses scope is 18-60t/h.
In step one, integrated broken main frame aggregate power range controls at 220kw-900kw,
Adopt as above after technical scheme, its beneficial effect is:
In dry method sand production technique, collection hits, mill, stone-crash-stone one, realize stone flour to be separated simultaneously, greatly reduce kinetic energy needed for main frame, the finished product grating of producing is stablized, particle shape is good, fineness modulus is adjustable, whole technique adopts isolation technique, effective control content of stone powder meets national standard, utilize the fine work sandstone that this explained hereafter goes out, fully meet the needs of high performance concrete and dry-mixed mortar production, over-all properties surpasses river sand, mountain is husky, can be cost-saving, improve concrete weather resistance, the over-all propertieies such as intensity, save baking procedure and the cost of dry-mixed mortar sand, the Machine-made Sand produced can directly use, and Non-water washing, without the need to mixing river sand adjustment, is the sand equipment processed of sandstone field, bituminous concrete industry, dry-mixed mortar industry first-selection.
Adopt this energy saving technology environmental protection, sand mold superior, sand mold is superior: in production process, with fragmentation++ stone-crash-stone shaping integrated of milling, finished sand grating is stable, particle shape is good, basic needleless sheet sand, finished product be polyhedron close to globoid, fineness modulus (2.3 ~ 3.0) and containing grain amount (less than 5%) adjustable, property indices meets country's " construction sand " GB14684-2011 standard.
Environmental protection: system configuration advanced person gets powder scheme, process environments no dust pollution; Energy consumption is low: energy consumption 3kw/t.Tooling cost per ton more energy-conservation than international and domestic like product 60%, reduces sand cost processed greatly; Broken scope is wide: except normal crushed stone lime stone and all kinds of rubble, can be used for the materials such as broken mine tailing, building waste (mine tailing get sand advantage particularly outstanding) simultaneously; Compact construction: take up an area and be only 100 ㎡; Level of automation is high: control system integration, in an operation room, reduces cost of human resources to greatest extent; System produces stone flour: specific surface area is large, can 100% for concrete production (as tool activity can replace second class powered coal ash).
Dry method sand equipment well can control the ratio of sand, and the ratio of the sand of the more particle diameter used between 2.36-0.6mm and 0.6-0.15mm in concrete and dry-mixed mortar is increased, and greatly meets various concrete and dry-mixed mortar to the demand of sand.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of dry method sand of the present invention.
Fig. 2 is the graduation curve figure of Machine-made Sand of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail, can not be interpreted as it is limitation of the present invention;
As shown in Figure 1, a kind of dry method producing sand process, this manufacture craft comprises following operation:
Step one: break process;
First, raw material block stone is delivered in charging bucket elevator by belt transport equipment, block stone raw material is cobble, grouan, Wingdale etc., its block stone magnitude range 10-20cm, charging bucket elevator is connected with integrated broken main frame, by charging bucket elevator, block stone is transported in integrated broken main frame, strong stirring is provided with in the broken main frame of integration, disintegrating apparatus and dust removal installation, dust removal installation is negative pressure bugduster apparatus, disintegrating apparatus is horizontal crusher, the broken main frame of integration is also provided with vertical elevator and classification reciprocating sieve, negative pressure bugduster apparatus, horizontal crusher, vertical elevator and classification reciprocating sieve become one and spatially arrange structure, the broken main frame of integration is connected with integrated manipulator and operated by its integral type control platform and controls, easy and simple to handle, easy grasp, as needed high joining can to realize Industrial Computer Control and operation monitoring,
Step 2: screening process;
Run integrated broken main frame, raw material enters two horizontal crushers through vertical elevator outlet, raw material is through impact crushing, extruding, shear and dished out by the side outlet of horizontal crusher, two bursts of raw material high speed impact collisions in main frame form the broken shaping of " stone-crash-stone " impact type, drop to zero and fall to classification reciprocating sieve when material fully breaks up and carry out gradation sizing discharge, the material of discharging is divided into coarse particles or fine particle, the broken main frame two ends of described integration are provided with gets powder system and classification screen(ing) machine, its fine particle is delivered to be got in powder system, carry out stone flour discharging for subsequent use, its coarse particles enters in classification screen(ing) machine, particle diameter is added stone at more than 40mm sand and enters material return system feed back, re-starts step one fragmentation, screening process,
Step 3: coarse particles adds wet treatment;
A footpath≤0.6mm coarse particles is delivered in humidifier, humidifier is without dust and pollution-free equipment, particle is washed, becomes 2.36-0.6mm and 0.6-0.15mm Machine-made Sand fines, and fines after washing is directly delivered in finished product heap by environmental protection discharging belt conveyer;
Step 4: be for subsequent usely dry mixed sand process;
In classification screen(ing) machine, a part of fine particle enters in dry-mixed mortar device for subsequent use by pipeline, and this fine particle is dry powder, for subsequent use by dry-mixed mortar sand outlet discharging for subsequent use.
Raw material block stone inlet amount scope is 60-30t/h, and its load scope is 42-240t/h, and dedusting doses scope is 18-60t/h, and integrated broken main frame aggregate power range controls at 220kw-900kw.
Dry method sand equipment well can control the ratio of sand, and the ratio of the sand of the more particle diameter used between 2.36-0.6mm and 0.6-0.15mm in concrete and dry-mixed mortar is increased.
Shown in Fig. 2, when single sieving curve is inclined toward upper left more than 3rd district, represent that sand is meticulous, the cement slurry volume needed during mixing concrete is many, easily makes concrete strength reduce, and shrinks and increases, time inclined toward bottom right more than 1st district, represent that sand is excessively thick, the concrete of preparation, the workability of its mixture is not easy to control, and internal friction is large, not easily shakes and changes into type, be in the sand of 2 district's gratings, its thickness is moderate, and grating is better, is the optimal grating district of concrete batching.
Claims (5)
1. a dry method producing sand process, is characterized in that: this manufacture craft comprises following operation:
Step one: break process;
First, raw material block stone is delivered in charging bucket elevator by belt transport equipment, its block stone magnitude range 10-20cm, charging bucket elevator is connected with integrated broken main frame, by charging bucket elevator, block stone is transported in integrated broken main frame, be provided with strong stirring, disintegrating apparatus and dust removal installation in the broken main frame of integration, integrated broken main frame is connected with integrated manipulator and operated by its integral type control platform and controls, and realizes industry and calculates and operation monitoring;
Step 2: screening process;
After the broken main frame fragmentation of integration, block stone is pulverized as coarse particles or fine particle, and the broken main frame two ends of described integration are provided with gets powder system and classification screen(ing) machine, and its fine particle is delivered to be got in powder system, carries out stone flour discharging for subsequent use; Its coarse particles enters in classification screen(ing) machine, particle diameter is added stone at more than 40mm sand and enters material return system feed back, re-starts step one fragmentation, screening process;
Step 3: coarse particles adds wet treatment;
A footpath≤0.6mm coarse particles is delivered in humidifier, humidifier is without dust and pollution-free equipment, particle is washed, becomes 2.36-0.6mm and 0.6-0.15mm Machine-made Sand fines, and fines after washing is directly delivered in finished product heap by environmental protection discharging belt conveyer;
Step 4: be for subsequent usely dry mixed sand process;
In classification screen(ing) machine, a part of fine particle enters in dry-mixed mortar device for subsequent use by pipeline, and this fine particle is dry powder, for subsequent use by dry-mixed mortar sand outlet discharging for subsequent use.
2. dry method producing sand process according to claim 1, is characterized in that: in step one, and described block of stone raw material is cobble, grouan, Wingdale.
3. dry method producing sand process according to claim 1, is characterized in that: in step one, and dust removal installation is negative pressure bugduster apparatus.
4. dry method producing sand process according to claim 1, is characterized in that: raw material block stone inlet amount scope is 60-30t/h, and its load scope is 42-240t/h, and dedusting doses scope is 18-60t/h.
5. dry method producing sand process according to claim 1, is characterized in that: in step one, and integrated broken main frame aggregate power range controls at 220kw-900kw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612742.XA CN104446071A (en) | 2014-11-05 | 2014-11-05 | Dry sand making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612742.XA CN104446071A (en) | 2014-11-05 | 2014-11-05 | Dry sand making process |
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| CN104446071A true CN104446071A (en) | 2015-03-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517838A (en) * | 2016-11-11 | 2017-03-22 | 叶六明 | Processing method of alkali-free sand |
| CN108101469A (en) * | 2017-12-12 | 2018-06-01 | 河南金拇指防水科技股份有限公司 | A kind of implementation of cement base spraying rapid hardening aqueous waterproofing paint layer |
| CN110124800A (en) * | 2019-06-28 | 2019-08-16 | 自贡市北斗水泥有限公司 | A kind of method of dry production lime stone Machine-made Sand |
| CN111377631A (en) * | 2020-03-24 | 2020-07-07 | 浙江港腾建材有限公司 | Sand making process of machine-made sand |
| 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 |
| CN112592083A (en) * | 2020-12-23 | 2021-04-02 | 国家电网有限公司 | Method for producing machine-made sand by utilizing excavation material |
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| CN1648094A (en) * | 2004-12-08 | 2005-08-03 | 中国水利水电第九工程局 | Process for semidry producing sand of artificial sand and stone system |
| CN101134226A (en) * | 2007-10-17 | 2008-03-05 | 中国水利水电第九工程局 | Intelligentized control technology of the semi- dry type manufactured sand production technology |
| CN102531436A (en) * | 2010-12-16 | 2012-07-04 | 福建宏伟环保建材有限公司 | Sand-making dry method by using granite leftover rock powders and rock ballasts |
| CN102898086A (en) * | 2012-10-31 | 2013-01-30 | 山东大元实业股份有限公司 | Preparation method of high-performance recycled aggregate concrete |
| CN103381386A (en) * | 2012-05-04 | 2013-11-06 | 江苏腾达建筑机械有限公司 | Symmetric integrated crushing system |
| CN103433109A (en) * | 2013-09-16 | 2013-12-11 | 南通欧特建材设备有限公司 | Novel sand-making production device |
| CN103801444A (en) * | 2013-12-16 | 2014-05-21 | 上海西芝矿山工程机械有限公司 | Production system and method for high-grade machine-made sand and high-grade rock flour |
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2014
- 2014-11-05 CN CN201410612742.XA patent/CN104446071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1648094A (en) * | 2004-12-08 | 2005-08-03 | 中国水利水电第九工程局 | Process for semidry producing sand of artificial sand and stone system |
| CN101134226A (en) * | 2007-10-17 | 2008-03-05 | 中国水利水电第九工程局 | Intelligentized control technology of the semi- dry type manufactured sand production technology |
| CN102531436A (en) * | 2010-12-16 | 2012-07-04 | 福建宏伟环保建材有限公司 | Sand-making dry method by using granite leftover rock powders and rock ballasts |
| CN103381386A (en) * | 2012-05-04 | 2013-11-06 | 江苏腾达建筑机械有限公司 | Symmetric integrated crushing system |
| CN102898086A (en) * | 2012-10-31 | 2013-01-30 | 山东大元实业股份有限公司 | Preparation method of high-performance recycled aggregate concrete |
| CN103433109A (en) * | 2013-09-16 | 2013-12-11 | 南通欧特建材设备有限公司 | Novel sand-making production device |
| CN103801444A (en) * | 2013-12-16 | 2014-05-21 | 上海西芝矿山工程机械有限公司 | Production system and method for high-grade machine-made sand and high-grade rock flour |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517838A (en) * | 2016-11-11 | 2017-03-22 | 叶六明 | Processing method of alkali-free sand |
| CN108101469A (en) * | 2017-12-12 | 2018-06-01 | 河南金拇指防水科技股份有限公司 | A kind of implementation of cement base spraying rapid hardening aqueous waterproofing paint layer |
| CN110124800A (en) * | 2019-06-28 | 2019-08-16 | 自贡市北斗水泥有限公司 | A kind of method of dry production lime stone Machine-made Sand |
| CN110124800B (en) * | 2019-06-28 | 2021-03-30 | 自贡市北斗水泥有限公司 | Method for producing limestone machine-made sand by dry method |
| CN111377631A (en) * | 2020-03-24 | 2020-07-07 | 浙江港腾建材有限公司 | Sand making process of machine-made sand |
| 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 |
| CN112592083A (en) * | 2020-12-23 | 2021-04-02 | 国家电网有限公司 | Method for producing machine-made sand by utilizing excavation material |
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Application publication date: 20150325 |
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