CN103664021A - Production method of natural quartz sand for casting - Google Patents
Production method of natural quartz sand for casting Download PDFInfo
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- CN103664021A CN103664021A CN201210318285.4A CN201210318285A CN103664021A CN 103664021 A CN103664021 A CN 103664021A CN 201210318285 A CN201210318285 A CN 201210318285A CN 103664021 A CN103664021 A CN 103664021A
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Abstract
The invention discloses a production method of natural quartz sand for casting, belonging to the fine-processing field of natural quartz stones. The production method is used for producing the natural quartz sand for casting by taking the natural quartz stones, diluted hydrochloric acid and water as materials; the production method has the advantages that general equipment is applied, investment is a little, cost is low, pollution is avoided and mass production can be carried out; the product can be applied in a casting process and has the advantages that firstly, mechanical chamber-drawing operation is easy and construction is simple and convenient; secondly, thermal insulation effect is good; thirdly, the product is resistant to molten steel, and does not react with the molten steel, so that secondary oxidation of the molten steel is not caused; fourthly, the molten steel is not polluted, and impurities in the molten steel can be adsorbed; fifthly, the residue steel slag is convenient to remove after application, disintegration is good, and a lining body is not damaged.
Description
Technical field
The invention belongs to natural stone diamond stone manufacture field, relate in particular to a kind of method of natural stone diamond stone as primary industryization production casting use natural siliceous sand of take.
Background technology
Natural siliceous sand is a kind of silicate minerals of hard, wear-resisting, stable chemical performance, and its essential mineral composition is silicon-dioxide, and relative density is 2.65, its chemistry, calorifics and mechanical property have obvious anisotropy, be insoluble to acid,, there is higher fire performance 1730 ℃ of left and right of fusing point.Natural siliceous sand is of many uses, as the industries such as glass, pottery and refractory materials, metallurgy, casting, building, chemical industry, machinery are all no lack of the figure of quartz sand.Casting is a kind of of natural siliceous sand with natural siliceous sand, be applicable to various foundry goods sands, require its dioxide-containing silica to reach 97%-99%, the difference needing according to cast article, use specification at 1-2 order, 2-4 order, 4-6 order, 6-8 order, 8-10 order, 10-20 order, 20-40 order, 40-70 order, 70-100 order, 100-140 order and 140 orders are above to 400 orders, casting is many prismatics by natural siliceous sand outward appearance, spherical, pure white, be characterized in that hardness is large, at the bottom of iron-holder, refractoriness is high, retaining power is strong, acid resistance is good etc., quartz sand size is to cast as resin sand according to the cast type adopting in addition, sodium silicate sand casting, lost foam casting and castings material, foundry goods size and surface smoothness requirement etc. are determined, granularity requirements is generally to select in 40-90 order, thereby guaranteed the smooth of foundry goods, greatly reduce the rework rate of foundry goods.The present invention is a kind of casting natural siliceous sand, outward appearance is colourless translucent, be characterized in that dioxide-containing silica is between 97%-99%, be mainly used in resin sand, sodium silicate sand, lost foam casting, the raw material of producing this product use is: natural stone diamond stone, dilute hydrochloric acid, water, the advantage of this production method is: use general-purpose equipment, less investment, cost be low, pollution-free, can be mass out quality casts preferably with natural siliceous sand, product tool has the following advantages: be easy to the operation of mechanize cupola drop, easy construction 1.; 2. high insulating effect; 3. anti-molten steel, does not react with molten steel, can not cause secondary oxidation of steel; 4. do not pollute molten steel and can adsorb the foreign material in molten steel; 5. convenient with the remaining slag of rear removing, disintegration is good, does not damage lining body.
Summary of the invention
The problem that the present invention mainly solves is to provide a kind of method of natural siliceous sand for suitability for industrialized production casting, the method be take natural stone diamond stone as main raw material, the techniques such as the cleaning by natural stone diamond stone, peeling, fragmentation, pickling, washing, oven dry, magnetic separation, classification are produced casting natural siliceous sand, the method have advantages of use general-purpose equipment, less investment, cost low, pollution-free, can be mass, producing casting has with the raw material that natural siliceous sand is used: the dilute hydrochloric acid of natural stone diamond stone, concentration 14%-16%, water.
The present invention can be achieved through the following technical solutions:
Cast the production method with natural siliceous sand, it is characterized in that being formed by following steps:
(1) selected bulk natural stone diamond stone is sent into rinsing machine, with high pressure water washing, remove the dirt settling of quartzite outside surface, then the boulder diamond stone after cleaning is sent into the Calusena lansium that sheller is removed boulder diamond stone outside surface.
(2) the boulder diamond stone after peeling being sent into crusher in crushing is that particulate state obtains quartz sand, then quartz sand is sent into sour pond, with the dilute hydrochloric acid of concentration 14%-16%, soaks 24-30 hour.
(3) pickling after finishing is pulled the natural siliceous sand in sour pond out, sends into immediately rinsing machine high pressure water washing, sends into drying machine drying after washing away the hydrochloric acid of natural siliceous sand particle surface, and bake out temperature is 70 ℃-80 ℃, and drying time is 2.5-3.0 hour.
(4) natural siliceous sand after drying is sent into magnetic separator, by magnetic field powerful in magnetic separator by quartz sand containing the quartz sand Adsorption of magnetic, containing metal and metal oxide, after 0.2-0.25 hour, magnetic separation finishes, quartz sand after magnetic separation is sent into vibratory screening apparatus and carry out classification, screening is the quartz sand of 1-2 order, 2-4 order, 4-6 order, 6-8 order, 8-10 order, 10-20 order, 20-40 order, 40-70 order, 70-90 order, 90-140 order and 140-400 order equal-specification, obtains finished product casting natural siliceous sand respectively after packing.
The described dilute hydrochloric acid concentration of step (2) is 14%-16%, and soak time is 24-30 hour; When dilute hydrochloric acid concentration is 14%, soak time is 30 hours; When dilute hydrochloric acid concentration is 15%, soak time is 27 hours, and when dilute hydrochloric acid concentration is 16%, soak time is 24 hours.
The described bake out temperature of step (3) is 70 ℃-80 ℃, and drying time is 2.5-3.0 hour; When corresponding bake out temperature is 70 ℃, drying time is 3.0 hours; When bake out temperature is 75 ℃, drying time is 2.75 hours, and when bake out temperature is 80 ℃, drying time is 2.5 hours.
The invention has the beneficial effects as follows: a kind of production method of casting with natural siliceous sand is provided, this production method has advantages of that technique is simple, easy to operate, facility investment is few, cost is low, pollution-free, can be mass, and can produce the casting natural siliceous sand of high-quality.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
Selected bulk natural stone diamond stone is sent into rinsing machine, with high pressure water washing, remove the dirt settling of quartzite outside surface, then the boulder diamond stone after cleaning is sent into the Calusena lansium that sheller is removed boulder diamond stone outside surface; It is that particulate state obtains quartz sand that boulder diamond stone after peeling is sent into crusher in crushing, then quartz sand is sent into sour pond, with the dilute hydrochloric acid of concentration 14%, soaks 30 hours; After pickling finishes, the natural siliceous sand in sour pond is pulled out, sent into immediately rinsing machine high pressure water washing, send into drying machine drying after washing away the hydrochloric acid of natural siliceous sand particle surface, bake out temperature is 70 ℃, and drying time is 3.0 hours; Natural siliceous sand after drying is sent into magnetic separator, by magnetic field powerful in magnetic separator by quartz sand containing the quartz sand Adsorption of magnetic, containing metal and metal oxide, after 0.25 hour, magnetic separation finishes, quartz sand after magnetic separation is sent into vibratory screening apparatus and carry out classification, sieve as obtaining finished product casting natural siliceous sand after packing respectively after the quartz sand of 1-2 order, 2-4 order, 4-6 order, 6-8 order, 8-10 order, 10-20 order, 20-40 order, 40-70 order, 70-90 order, 90-140 order and 140-400 order equal-specification.
Embodiment 2
Selected bulk natural stone diamond stone is sent into rinsing machine, with high pressure water washing, remove the dirt settling of quartzite outside surface, then the boulder diamond stone after cleaning is sent into the Calusena lansium that sheller is removed boulder diamond stone outside surface; It is that particulate state obtains quartz sand that boulder diamond stone after peeling is sent into crusher in crushing, then quartz sand is sent into sour pond, with the dilute hydrochloric acid of concentration 15%, soaks 27 hours; After pickling finishes, the natural siliceous sand in sour pond is pulled out, sent into immediately rinsing machine high pressure water washing, send into drying machine drying after washing away the hydrochloric acid of natural siliceous sand particle surface, bake out temperature is 75 ℃, and drying time is 2.75 hours; Natural siliceous sand after drying is sent into magnetic separator, by magnetic field powerful in magnetic separator by quartz sand containing the quartz sand Adsorption of magnetic, containing metal and metal oxide, after 0.225 hour, magnetic separation finishes, quartz sand after magnetic separation is sent into vibratory screening apparatus and carry out classification, sieve as obtaining finished product casting natural siliceous sand after packing respectively after the quartz sand of 1-2 order, 2-4 order, 4-6 order, 6-8 order, 8-10 order, 10-20 order, 20-40 order, 40-70 order, 70-90 order, 90-140 order and 140-400 order equal-specification.
Embodiment 3
Selected bulk natural stone diamond stone is sent into rinsing machine, with high pressure water washing, remove the dirt settling of quartzite outside surface, then the boulder diamond stone after cleaning is sent into the Calusena lansium that sheller is removed boulder diamond stone outside surface; It is that particulate state obtains quartz sand that boulder diamond stone after peeling is sent into crusher in crushing, then quartz sand is sent into sour pond, with the dilute hydrochloric acid of concentration 16%, soaks 24 hours; After pickling finishes, the natural siliceous sand in sour pond is pulled out, sent into immediately rinsing machine high pressure water washing, send into drying machine drying after washing away the hydrochloric acid of natural siliceous sand particle surface, bake out temperature is 80 ℃, and drying time is 2.5 hours; Natural siliceous sand after drying is sent into magnetic separator, by magnetic field powerful in magnetic separator by quartz sand containing the quartz sand Adsorption of magnetic, containing metal and metal oxide, after 0.2 hour, magnetic separation finishes, quartz sand after magnetic separation is sent into vibratory screening apparatus and carry out classification, sieve as obtaining finished product casting natural siliceous sand after packing respectively after the quartz sand of 1-2 order, 2-4 order, 4-6 order, 6-8 order, 8-10 order, 10-20 order, 20-40 order, 40-70 order, 70-90 order, 90-140 order and 140-400 order equal-specification.
Claims (3)
1. cast the production method with natural siliceous sand, the raw material of its use comprises: the dilute hydrochloric acid of natural stone diamond stone, concentration 14%-16%, water; It is characterized in that: step (1) is sent selected bulk natural stone diamond stone into rinsing machine, with high pressure water washing, remove the dirt settling of quartzite outside surface, then the boulder diamond stone after cleaning is sent into the Calusena lansium that sheller is removed boulder diamond stone outside surface; It is that particulate state obtains quartz sand that step (2) is sent the boulder diamond stone after peeling into crusher in crushing, then quartz sand is sent into sour pond, with the dilute hydrochloric acid of concentration 14%-16%, soaks 24-30 hour; After step (3) pickling finishes, the natural siliceous sand in sour pond is pulled out, sent into immediately rinsing machine high pressure water washing, send into drying machine drying after washing away the hydrochloric acid of natural siliceous sand particle surface, bake out temperature is 70 ℃-80 ℃, and drying time is 2.5-3.0 hour; Step (4) is sent the natural siliceous sand after drying into magnetic separator, by magnetic field powerful in magnetic separator by quartz sand containing the quartz sand Adsorption of magnetic, containing metal and metal oxide, after 0.2-0.25 hour, magnetic separation finishes, quartz sand after magnetic separation is sent into vibratory screening apparatus and carry out classification, screening is the quartz sand of 1-2 order, 2-4 order, 4-6 order, 6-8 order, 8-10 order, 10-20 order, 20-40 order, 40-70 order, 70-90 order, 90-140 order and 140-400 order equal-specification, obtains finished product casting natural siliceous sand respectively after packing.
2. a kind of production method of casting with natural siliceous sand according to claim 1, the feature of its step (4) is: described dilute hydrochloric acid concentration is 14%-16%, soak time is 24-30 hour; When dilute hydrochloric acid concentration is 14%, soak time is 30 hours; When dilute hydrochloric acid concentration is 15%, soak time is 27 hours, and when dilute hydrochloric acid concentration is 16%, soak time is 24 hours.
3. a kind of production method of casting with natural siliceous sand according to claim 1, the feature of its step (5) is: described bake out temperature is 70 ℃-80 ℃, and drying time is 2.5-3.0 hour; When corresponding bake out temperature is 70 ℃, drying time is 3.0 hours; When bake out temperature is 75 ℃, drying time is 2.75 hours, and when bake out temperature is 80 ℃, drying time is 2.5 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210318285.4A CN103664021A (en) | 2012-09-02 | 2012-09-02 | Production method of natural quartz sand for casting |
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| CN201210318285.4A CN103664021A (en) | 2012-09-02 | 2012-09-02 | Production method of natural quartz sand for casting |
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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 |
| CN108275686A (en) * | 2018-04-18 | 2018-07-13 | 奈曼旗忠義砂产业有限公司 | A kind of production method of natural siliceous sand |
| CN110076287A (en) * | 2019-05-23 | 2019-08-02 | 分宜九一机械制造有限公司 | A kind of paint specially for disappearing cast mold and preparation method thereof |
| CN110615687A (en) * | 2019-11-01 | 2019-12-27 | 内蒙古仁创沙产业有限公司 | Purification method of casting silica sand and high-purity silica sand |
| CN110681472A (en) * | 2019-10-09 | 2020-01-14 | 广西大化汇邦石材有限公司 | Quartz sand pickling-free wampee removing process |
| CN113929473A (en) * | 2021-10-29 | 2022-01-14 | 康硕(德阳)智能制造有限公司 | Preparation process of 3D printing quartz sand |
-
2012
- 2012-09-02 CN CN201210318285.4A patent/CN103664021A/en active Pending
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 |
| CN108275686A (en) * | 2018-04-18 | 2018-07-13 | 奈曼旗忠義砂产业有限公司 | A kind of production method of natural siliceous sand |
| CN110076287A (en) * | 2019-05-23 | 2019-08-02 | 分宜九一机械制造有限公司 | A kind of paint specially for disappearing cast mold and preparation method thereof |
| CN110681472A (en) * | 2019-10-09 | 2020-01-14 | 广西大化汇邦石材有限公司 | Quartz sand pickling-free wampee removing process |
| CN110615687A (en) * | 2019-11-01 | 2019-12-27 | 内蒙古仁创沙产业有限公司 | Purification method of casting silica sand and high-purity silica sand |
| CN110615687B (en) * | 2019-11-01 | 2022-05-13 | 内蒙古仁创沙产业有限公司 | Purification method of casting silica sand and high-purity silica sand |
| CN113929473A (en) * | 2021-10-29 | 2022-01-14 | 康硕(德阳)智能制造有限公司 | Preparation process of 3D printing quartz sand |
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Application publication date: 20140326 |