CN109822041A - A kind of inorganic antiquated sand regeneration method - Google Patents
A kind of inorganic antiquated sand regeneration method Download PDFInfo
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- CN109822041A CN109822041A CN201910238100.0A CN201910238100A CN109822041A CN 109822041 A CN109822041 A CN 109822041A CN 201910238100 A CN201910238100 A CN 201910238100A CN 109822041 A CN109822041 A CN 109822041A
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- inorganic
- sand
- antiquated sand
- antiquated
- regeneration method
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Abstract
The invention discloses a kind of inorganic antiquated sand regeneration methods, including broken, grinding, roasting, cooling and screening and etc..The beneficial effects of the present invention are: inorganic antiquated sand inorganic resin remained on surface can be thoroughly removed inorganic antiquated sand by processing such as grinding, roasting, screenings by the present invention, screening process can make the inorganic return sand epigranular of recycling, inorganic antiquated sand after inorganic resin sand use is carried out recycling and reusing by the present invention, cost is significantly reduced while keeping the performance of inorganic return sand, reduces the pollution to environment.
Description
Technical field
The present invention relates to casting field more particularly to a kind of inorganic antiquated sand regeneration methods.
Background technique
Inorganic return sand is to be widely used in motor cylinder block, cylinder cap, air inlet discrimination for manufacturing the material of sand core in Foundry Production
The production of pipe and the intricate castings such as all kinds of pipe fittings, the pump housing, it is adaptable it is strong, good fluidity, collapsibility are good, cast(ing) surface light
, there is irreplaceable status in the advantages that clean and high yield rate in casting industry.Sand core is in casting mold largely by high temperature
Liquid metal surrounded, and support the size of position portion typically small, therefore sand core requires to have higher intensity, ventilative
Property, deformability and collapsibility.Inorganic return sand is divided into clay core sand by binder difference used, waterglass core sand, wick sand, closes
Rouge core sand, inorganic resin core sand etc..
Coating one layer of Solid inorganic resin film on inorganic return sand surface is inorganic resin sand, and inorganic resin sand is added
In mold cavity, its molding is made by heating or catalyst method, sand core after molding, which places into casting die, casts.
Inorganic resin sand casting has surface roughness small, and dimensional accuracy is high, the good feature of quality.It is inorganic after inorganic resin sand use
Antiquated sand influences to reuse due to the certain inorganic resin of remained on surface, causes certain waste.
Summary of the invention
The present invention is directed to the problem that the inorganic antiquated sand after the use of inorganic resin sand recycles difference, provides a kind of inorganic antiquated sand again
Generation method.
The technical scheme to solve the above technical problems is that a kind of inorganic antiquated sand regeneration method, which is characterized in that
The following steps are included:
1) be crushed: it is broken that inorganic antiquated sand is placed in vibration in crusher, then uses the screen to filtrate, between selection -100 mesh of 50 mesh
Inorganic waste sand particles；
2) it grinds: the inorganic waste sand particles that step 1) has been crushed being added in grinder and are ground, are aerated simultaneously
Dedusting；
3) it roasts: the inorganic waste sand particles after step 2) grinding being added in roaster by batcher and are roasted；
4) cooling: the inorganic waste sand particles after roasting are cooled down into room temperature by boiling cooling bed；
5) it sieves: again with the screen to filtrate of 100 mesh to remove little particle after inorganic waste sand particles after cooling are dried
Antiquated sand obtains the inorganic antiquated sand of regeneration.
Wherein, in step 1), crusher vibration frequency is 800-1500Hz；In step 2), grinder rotating speed 2200-
2500r/min, dedusting air quantity are 16000-29000m3/h；In step 3), maturing temperature is 610 DEG C -650 DEG C, and calcining time is
0.5-1.5h；In step 4), cooling water pressure 0.2-0.25MPa.
The beneficial effects of the present invention are: the present invention can be by mineral waste by processing such as grinding, roasting, screenings by inorganic antiquated sand
Sand inorganic resin remained on surface thoroughly removes, and screening process can make the inorganic return sand epigranular of recycling, and the present invention is by nothing
Inorganic antiquated sand after machine resin sand use carries out recycling and reusing, significantly reduces while keeping the performance of inorganic return sand
Cost reduces the pollution to environment.
Specific embodiment
Below in conjunction with example, present invention is described, and the given examples are served only to explain the present invention, is not intended to limit this
The range of invention.
Embodiment 1
A kind of inorganic antiquated sand regeneration method, which comprises the following steps:
1) be crushed: will inorganic antiquated sand broken, the vibration frequency 800Hz that is placed in vibration in crusher, then use the screen to filtrate, select
Take the inorganic waste sand particles between -100 mesh of 50 mesh；
2) it grinds: the inorganic waste sand particles that step 1) has been crushed being added in grinder and are ground, grinder rotating speed is
2200r/min, while it being aerated dedusting, dedusting air quantity is 16000m3/h；
3) it roasts: the inorganic waste sand particles after step 2) grinding being added in roaster by batcher and are roasted, are roasted
Burning temperature is 630 DEG C, calcining time 1h；
4) cooling: the inorganic waste sand particles after roasting to be cooled down into room temperature by boiling cooling bed, cooling water pressure is
0.2MPa；
5) it sieves: again with the screen to filtrate of 100 mesh to remove little particle after inorganic waste sand particles after cooling are dried
Antiquated sand obtains the inorganic antiquated sand of regeneration.
Embodiment 2
A kind of inorganic antiquated sand regeneration method, which comprises the following steps:
1) be crushed: will inorganic antiquated sand broken, the vibration frequency 1100Hz that is placed in vibration in crusher, then with the screen to filtrate,
Choose the inorganic waste sand particles between -100 mesh of 50 mesh；
2) it grinds: the inorganic waste sand particles that step 1) has been crushed being added in grinder and are ground, grinder rotating speed is
2350r/min, while it being aerated dedusting, dedusting air quantity is 24000m3/h；
3) it roasts: the inorganic waste sand particles after step 2) grinding being added in roaster by batcher and are roasted, are roasted
Burning temperature is 650 DEG C, calcining time 0.5h；
4) cooling: the inorganic waste sand particles after roasting to be cooled down into room temperature by boiling cooling bed, cooling water pressure is
0.22MPa；
5) it sieves: again with the screen to filtrate of 100 mesh to remove little particle after inorganic waste sand particles after cooling are dried
Antiquated sand obtains the inorganic antiquated sand of regeneration.
Embodiment 3
A kind of inorganic antiquated sand regeneration method, which comprises the following steps:
1) be crushed: will inorganic antiquated sand broken, the vibration frequency 1500Hz that is placed in vibration in crusher, then with the screen to filtrate,
Choose the inorganic waste sand particles between -100 mesh of 50 mesh；
2) it grinds: the inorganic waste sand particles that step 1) has been crushed being added in grinder and are ground, grinder rotating speed is
2500r/min, while it being aerated dedusting, dedusting air quantity is 29000m3/h；
3) it roasts: the inorganic waste sand particles after step 2) grinding being added in roaster by batcher and are roasted, are roasted
Burning temperature is 610 DEG C, calcining time 1.5h；
4) cooling: the inorganic waste sand particles after roasting to be cooled down into room temperature by boiling cooling bed, cooling water pressure is
0.25MPa；
5) it sieves: again with the screen to filtrate of 100 mesh to remove little particle after inorganic waste sand particles after cooling are dried
Antiquated sand obtains the inorganic antiquated sand of regeneration.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of inorganic antiquated sand regeneration method, which comprises the following steps:
1) be crushed: it is broken that inorganic antiquated sand is placed in vibration in crusher, then uses the screen to filtrate, the nothing between selection -100 mesh of 50 mesh
Machine waste sand particles；
2) it grinds: the inorganic waste sand particles that step 1) has been crushed being added in grinder and are ground, while being aerated dedusting；
3) it roasts: the inorganic waste sand particles after step 2) grinding being added in roaster by batcher and are roasted；
4) cooling: the inorganic waste sand particles after roasting are cooled down into room temperature by boiling cooling bed；
5) it sieves: again with the screen to filtrate of 100 mesh to remove little particle antiquated sand after inorganic waste sand particles after cooling are dried,
Obtain the inorganic antiquated sand of regeneration.
2. inorganic antiquated sand regeneration method according to claim 1, which is characterized in that in step 1), crusher vibration frequency
For 800-1500Hz.
3. inorganic antiquated sand regeneration method according to claim 1, which is characterized in that in step 2), grinder rotating speed is
2200-2500r/min, dedusting air quantity are 16000-29000m3/h。
4. inorganic antiquated sand regeneration method according to claim 1, which is characterized in that in step 3), maturing temperature 610
DEG C -650 DEG C, calcining time 0.5-1.5h.
5. inorganic antiquated sand regeneration method according to claim 1, which is characterized in that in step 4), cooling water pressure is
0.2-0.25MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238100.0A CN109822041A (en) | 2019-03-27 | 2019-03-27 | A kind of inorganic antiquated sand regeneration method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238100.0A CN109822041A (en) | 2019-03-27 | 2019-03-27 | A kind of inorganic antiquated sand regeneration method |
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ID=66872483
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| CN201910238100.0A Pending CN109822041A (en) | 2019-03-27 | 2019-03-27 | A kind of inorganic antiquated sand regeneration method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145792A (en) * | 2021-04-29 | 2021-07-23 | 厦门金鑫晶造型材料有限公司 | Preparation process applied to environment-friendly precoated sand of hollow camshaft |
| CN115846588A (en) * | 2022-11-17 | 2023-03-28 | 柳晶科技集团股份有限公司 | Regeneration method of casting inorganic waste sand and regenerated sand |
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|---|---|---|---|---|
| CN107649643A (en) * | 2017-09-11 | 2018-02-02 | 齐鲁工业大学 | A kind of regenerating used method of selective laser sintering mound precoated sand |
| CN107983907A (en) * | 2017-11-28 | 2018-05-04 | 合肥仁创铸造材料有限公司 | The method of recycling cast waste sand |
| CN108326231A (en) * | 2018-06-04 | 2018-07-27 | 合肥仁创铸造材料有限公司 | Reduce the antiquated sand regeneration method of reclaimed sand acid consumption value |
| CN108723287A (en) * | 2018-06-11 | 2018-11-02 | 重庆长江造型材料（集团）股份有限公司 | A kind of thermal regeneration method of the inorganic overlay film hygrometric state antiquated sand of silicates |
| CN109226668A (en) * | 2018-11-21 | 2019-01-18 | 合肥仁创铸造材料有限公司 | A kind of inorganic sand regeneration method |
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2019
- 2019-03-27 CN CN201910238100.0A patent/CN109822041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649643A (en) * | 2017-09-11 | 2018-02-02 | 齐鲁工业大学 | A kind of regenerating used method of selective laser sintering mound precoated sand |
| CN107983907A (en) * | 2017-11-28 | 2018-05-04 | 合肥仁创铸造材料有限公司 | The method of recycling cast waste sand |
| CN108326231A (en) * | 2018-06-04 | 2018-07-27 | 合肥仁创铸造材料有限公司 | Reduce the antiquated sand regeneration method of reclaimed sand acid consumption value |
| CN108723287A (en) * | 2018-06-11 | 2018-11-02 | 重庆长江造型材料（集团）股份有限公司 | A kind of thermal regeneration method of the inorganic overlay film hygrometric state antiquated sand of silicates |
| CN109226668A (en) * | 2018-11-21 | 2019-01-18 | 合肥仁创铸造材料有限公司 | A kind of inorganic sand regeneration method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145792A (en) * | 2021-04-29 | 2021-07-23 | 厦门金鑫晶造型材料有限公司 | Preparation process applied to environment-friendly precoated sand of hollow camshaft |
| CN115846588A (en) * | 2022-11-17 | 2023-03-28 | 柳晶科技集团股份有限公司 | Regeneration method of casting inorganic waste sand and regenerated sand |
| CN115846588B (en) * | 2022-11-17 | 2024-01-12 | 柳晶科技集团股份有限公司 | Regeneration method of foundry inorganic waste sand and regenerated sand |
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Application publication date: 20190531 |
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