CN103317084A - Waste sand recycling equipment and use method thereof - Google Patents
Waste sand recycling equipment and use method thereof Download PDFInfo
- Publication number
- CN103317084A CN103317084A CN2013102730589A CN201310273058A CN103317084A CN 103317084 A CN103317084 A CN 103317084A CN 2013102730589 A CN2013102730589 A CN 2013102730589A CN 201310273058 A CN201310273058 A CN 201310273058A CN 103317084 A CN103317084 A CN 103317084A
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- Prior art keywords
- sand
- roaster
- recycling equipment
- antiquated
- old
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- Granted
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- 239000004576 sand Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- 239000002699 waste material Substances 0.000 title abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 230000008929 regeneration Effects 0.000 claims abstract description 13
- 238000011069 regeneration method Methods 0.000 claims abstract description 13
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 11
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229960004011 methenamine Drugs 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 6
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 6
- 239000008116 calcium stearate Substances 0.000 claims abstract description 6
- 239000005011 phenolic resin Substances 0.000 claims abstract description 6
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 6
- 229910000077 silane Inorganic materials 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000006148 magnetic separator Substances 0.000 claims description 10
- 238000010304 firing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009472 formulation Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 3
- 238000007885 magnetic separation Methods 0.000 abstract 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to waste sand recycling equipment which comprises a vibration crushing screening machine, an old sand lifting machine, a magnetic separation machine, a hot-method regeneration device, a cooling bed, a vibration screen and a new sand lifting machine which are connected in sequence. A use method of the waste sand recycling equipment comprises the following steps of: a, adding waste sand into the vibration crushing screening machine, crushing the waste sand into small particles, feeding the small particles into the old sand lifting machine, conveying the small particles to the magnetic separation machine, and removing iron materials; b, feeding preheated waste sand into the hot-method regeneration device for sintering; c, cooling the high-temperature sintered sand through the cooling bed, feeding the cooled sintered sand into the vibration screen, and enabling the sintered sand to pass through the new sand lifting machine to obtain regenerated sand; d, preparing materials according to the following formula: 1.6-1.7kg of a methenamine solution, 2.7-2.8kg of phenolic resin, 100-300g of calcium stearate, 60-100g of silane and 150kg of the regenerated sand and/or raw sand; e, adding the materials into a stirring kettle in sequence and uniformly stirring to obtain precoated sand. The waste sand recycling equipment has the beneficial effects of simplicity for operation, high old sand recycling rate and simplicity for popularization.
Description
Technical field
The present invention relates to a kind of antiquated sand recycling equipment and using method thereof.
Background technology
China is a big country in foundry, along with the high speed development of national economy, has reached 3,530 ten thousand tons to China's foundry goods annual production in 2009, occupies the umber one of World Casting output.China is again the consumption big country of a Modeling Material, because 80% above foundry goods is from sand casting, because placer iron is larger during China's moulding, in general, 1 ton of castings of every production can produce approximately 1.2～1.4 tons of antiquated sands, and the cast waste sand of annual discharging can reach more than 3,000 ten thousand tons.So a large amount of discharging cast waste sands will occupy a lot of antiquated sands place.Extensive use along with the various organic and inorganic binding agents of China, cause the harmful components that contain in the antiquated sand more and more, residual aldehyde, phenol, benzene, potassium, isocyanide, sulfide etc. in the antiquated sand such as the organic resin binding agent, harmful compositions such as residual alkali, phenol in the inorganic binder antiquated sand.The antiquated sand that contains these class harmful components, through the rainwater etch, its harmful components will be polluted rivers and lakes after the discharging, even pollute life water source.The compositions such as the isocyanide that especially contains in the strong basicity of water-glass sand and the resin sand, phenols, the public hazards that cause are even more serious.In recent years, along with the continuous enhancing of people's environmental consciousness, country is to the increasing of environmental protection law enforcement dynamics, and the increase that charges for disposing pollutants are used all forces Foundry Works that old sand is carried out regeneration.
Summary of the invention
The technical problem to be solved in the present invention is: based on the problems referred to above, the invention provides a kind of antiquated sand recycling equipment and using method thereof.
The present invention solves the technical scheme that its technical problem adopts: a kind of antiquated sand recycling equipment comprises the vibrating crushing screening machine that links to each other successively, old sand elevator, magnetic separator, hot-method regeneration device, cooling bed, vibratory sieve and fresh sand elevator.
Further, be provided with successively the middle bucket of old sand, screw(-type) feeder between magnetic separator, the hot-method regeneration device.
Further, hot-method regeneration device comprises sand preheater, air preheater and roaster, and sand preheater, air preheater are connected with roaster respectively, and the sand preheater links to each other with screw(-type) feeder, roaster links to each other with cooling bed, and roaster also is connected with gas generator.
The using method of antiquated sand recycling equipment comprises following step:
A, antiquated sand add vibrating crushing screening machine and are broken into granule, enter the old sand elevator and are delivered to magnetic separator, remove iron charge, and bucket, screw(-type) feeder in the middle of old sand are delivered to the sand preheater with the antiquated sand of removing iron charge;
The air of preheating enters roaster in b, the air preheater, and the antiquated sand after the preheating enters the roaster high-temperature firing, and furnace temperature is 600～800 ℃;
Sand behind c, the high-temperature firing enters vibratory sieve after cooling bed cooling, again through obtaining reclaimed sand behind the fresh sand elevator;
D, according to the following formulation, prepare material:
Methenamine solution (methenamine: the 1.6～1.7kg of water=1:3), phenolic resins 2.7～2.8kg, calcium stearate 100～300g, silane 60～100g, all the other are reclaimed sand and/or roughing sand, total amount is 150kg;
E, heating stirred tank to 100～200 ℃ are sequentially added into above-mentioned material in the stirred tank and stir, and obtain precoated sand.
The invention has the beneficial effects as follows: simple to operate, the old sand recovery utilization rate is high, is easy to promote.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.
Wherein: 1. vibrating crushing screening machine, 2. old sand elevator, 3. magnetic separator, 4. bucket in the middle of the old sand, 5. screw(-type) feeder, 6. hot-method regeneration device is 7. cooling bed, 8. vibratory sieve, 9. fresh sand elevator.
The specific embodiment
The invention will be further described in conjunction with specific embodiments now, and following examples are intended to illustrate the present invention rather than limitation of the invention further.
A kind of antiquated sand recycling equipment as shown in Figure 1 comprises successively the vibrating crushing screening machine 1 that links to each other, old sand elevator 2, magnetic separator 3, hot-method regeneration device 6, cooling bed 7, vibratory sieve 8 and fresh sand elevator 9.
Be provided with successively the middle bucket 4 of old sand, screw(-type) feeder 5 between magnetic separator 3, the hot-method regeneration device 6.
Hot-method regeneration device 6 comprises sand preheater, air preheater and roaster, and sand preheater, air preheater are connected with roaster respectively, and the sand preheater links to each other with screw(-type) feeder 5, and roaster links to each other with cooling bed 7, and roaster also is connected with gas generator.
The using method of antiquated sand recycling equipment comprises following step:
A, antiquated sand add vibrating crushing screening machine 1 and are broken into granule, enter old sand elevator 2 and are delivered to magnetic separator 3, remove iron charge, and bucket 4, screw(-type) feeder 5 in the middle of old sand are delivered to the sand preheater with the antiquated sand of removing iron charge;
The air of preheating enters roaster in b, the air preheater, and the antiquated sand after the preheating enters the roaster high-temperature firing, and furnace temperature is 600～800 ℃;
Sand behind c, the high-temperature firing enters vibratory sieve 8 after cooling bed 7 coolings, again through obtaining reclaimed sand behind the fresh sand elevator 9;
D, according to the following formulation, prepare material:
Methenamine solution (methenamine: the 1.6～1.7kg of water=1:3), phenolic resins 2.7～2.8kg, calcium stearate 100～300g, silane 60～100g, all the other are reclaimed sand and/or roughing sand, total amount is 150kg;
E, heating stirred tank to 100～200 ℃ are sequentially added into above-mentioned material in the stirred tank and stir, and obtain precoated sand.
Embodiment 1:
Methenamine solution (methenamine: the 1.6kg of water=1:3), phenolic resins 2.7kg, calcium stearate 100g, silane 60g, all the other are reclaimed sand and/or roughing sand, total amount is 150kg.
The rate of recovery of the antiquated sand that obtains according to above-mentioned using method is 85%.
Embodiment 2:
Methenamine solution (methenamine: the 1.7kg of water=1:3), phenolic resins 2.8kg, calcium stearate 300g, silane 100g, all the other are reclaimed sand and/or roughing sand, total amount is 150kg.
The rate of recovery of the antiquated sand that obtains according to above-mentioned using method is 90%.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (4)
1. antiquated sand recycling equipment is characterized in that: comprise the vibrating crushing screening machine that links to each other successively, old sand elevator, magnetic separator, hot-method regeneration device, cooling bed, vibratory sieve and fresh sand elevator.
2. antiquated sand recycling equipment according to claim 1 is characterized in that: be provided with successively the middle bucket of old sand, screw(-type) feeder between described magnetic separator, the hot-method regeneration device.
3. antiquated sand recycling equipment according to claim 1 and 2, it is characterized in that: described hot-method regeneration device comprises sand preheater, air preheater and roaster, sand preheater, air preheater are connected with roaster respectively, the sand preheater links to each other with screw(-type) feeder, roaster links to each other with cooling bed, and roaster also is connected with gas generator.
4. the using method of antiquated sand recycling equipment claimed in claim 1 comprises following step:
A, antiquated sand add vibrating crushing screening machine and are broken into granule, enter the old sand elevator and are delivered to magnetic separator, remove iron charge, and bucket, screw(-type) feeder in the middle of old sand are delivered to the sand preheater with the antiquated sand of removing iron charge;
The air of preheating enters roaster in b, the air preheater, and the antiquated sand after the preheating enters the roaster high-temperature firing, and furnace temperature is 600～800 ℃;
Sand behind c, the high-temperature firing enters vibratory sieve after cooling bed cooling, again through obtaining reclaimed sand behind the fresh sand elevator;
D, according to the following formulation, prepare material:
Methenamine solution (methenamine: the 1.6～1.7kg of water=1:3), phenolic resins 2.7～2.8kg, calcium stearate 100～300g, silane 60～100g, all the other are reclaimed sand and/or roughing sand, total amount is 150kg;
E, heating stirred tank to 100～200 ℃ are sequentially added into above-mentioned material in the stirred tank and stir, and obtain precoated sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310273058.9A CN103317084B (en) | 2013-06-28 | 2013-06-28 | A kind of method using antiquated sand recycling equipment to manufacture precoated sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310273058.9A CN103317084B (en) | 2013-06-28 | 2013-06-28 | A kind of method using antiquated sand recycling equipment to manufacture precoated sand |
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| Publication Number | Publication Date |
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| CN103317084A true CN103317084A (en) | 2013-09-25 |
| CN103317084B CN103317084B (en) | 2015-08-26 |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104162630A (en) * | 2014-09-05 | 2014-11-26 | 甘肃永靖昌盛铸钢有限责任公司 | Method for recycling waste molding sand for casting |
| CN104190854A (en) * | 2014-08-19 | 2014-12-10 | 重庆市大足区和润机械配件有限公司 | Regenerated pre-coated sand and preparation method thereof |
| CN104289667A (en) * | 2014-09-15 | 2015-01-21 | 浙江盛豪铸造有限公司 | Molding sand cooling and recycling device |
| CN104493074A (en) * | 2014-12-05 | 2015-04-08 | 牡丹江金缘钩缓制造有限责任公司 | Method for preparing zircon-sand pre-coated sand |
| CN104525852A (en) * | 2014-12-11 | 2015-04-22 | 青岛山上峰铸钢有限公司 | Method for recycling mould sand blank |
| CN104858362A (en) * | 2015-04-30 | 2015-08-26 | 北京仁创科技集团有限公司 | Regeneration technology of foundry used sand |
| CN105903897A (en) * | 2016-06-24 | 2016-08-31 | 洛阳凯林铸材有限公司 | Movable resin sand regeneration and lamination production line |
| CN106541073A (en) * | 2016-12-19 | 2017-03-29 | 双鸭山天鸿机械制造有限公司 | A kind of sand datatron processed for evaporative pattern and resin sand old sand |
| CN106607546A (en) * | 2016-08-31 | 2017-05-03 | 圣固（江苏）机械有限公司 | Coated sand recycling method |
| CN107457352A (en) * | 2017-08-15 | 2017-12-12 | 合肥正明机械有限公司 | A kind of renovation process for casting mixing old sand |
| 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 |
| CN108326230A (en) * | 2018-03-26 | 2018-07-27 | 江苏翔晟重工有限公司 | A kind of reclamation technique |
| CN108380814A (en) * | 2018-05-05 | 2018-08-10 | 侯马市富达造型材料有限公司 | A kind of regeneration precoated sand and preparation method thereof of casting swage part |
| CN109093063A (en) * | 2018-08-29 | 2018-12-28 | 禹州市昆仑模具有限公司 | A kind of precoated sand regeneration method |
| CN109622881A (en) * | 2019-01-31 | 2019-04-16 | 宁波华铸环保科技有限公司 | A kind of precoated sand production control method |
| CN109822044A (en) * | 2019-01-31 | 2019-05-31 | 宁波华铸环保科技有限公司 | A kind of reclaimed sand production line |
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| CN112719209A (en) * | 2020-12-24 | 2021-04-30 | 安徽永恒泰环保科技有限公司 | Processing method for recycling resin sand |
| 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 |
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| CN104190854A (en) * | 2014-08-19 | 2014-12-10 | 重庆市大足区和润机械配件有限公司 | Regenerated pre-coated sand and preparation method thereof |
| CN104162630A (en) * | 2014-09-05 | 2014-11-26 | 甘肃永靖昌盛铸钢有限责任公司 | Method for recycling waste molding sand for casting |
| CN104289667A (en) * | 2014-09-15 | 2015-01-21 | 浙江盛豪铸造有限公司 | Molding sand cooling and recycling device |
| CN104289667B (en) * | 2014-09-15 | 2016-11-23 | 浙江盛豪铸造有限公司 | Molding sand cooling reclamation set |
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| CN104525852A (en) * | 2014-12-11 | 2015-04-22 | 青岛山上峰铸钢有限公司 | Method for recycling mould sand blank |
| CN104858362A (en) * | 2015-04-30 | 2015-08-26 | 北京仁创科技集团有限公司 | Regeneration technology of foundry used sand |
| CN104858362B (en) * | 2015-04-30 | 2019-05-24 | 北京仁创科技集团有限公司 | A kind of regeneration technology of cast used sand |
| CN105903897A (en) * | 2016-06-24 | 2016-08-31 | 洛阳凯林铸材有限公司 | Movable resin sand regeneration and lamination production line |
| CN106607546A (en) * | 2016-08-31 | 2017-05-03 | 圣固（江苏）机械有限公司 | Coated sand recycling method |
| CN106541073A (en) * | 2016-12-19 | 2017-03-29 | 双鸭山天鸿机械制造有限公司 | A kind of sand datatron processed for evaporative pattern and resin sand old sand |
| CN107457352A (en) * | 2017-08-15 | 2017-12-12 | 合肥正明机械有限公司 | A kind of renovation process for casting mixing old sand |
| CN107457352B (en) * | 2017-08-15 | 2019-12-31 | 宣城创玺铸造有限公司 | Regeneration method of casting mixed used sand |
| 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 |
| CN107649643B (en) * | 2017-09-11 | 2019-11-15 | 齐鲁工业大学 | A kind of regenerating used method of selective laser sintering mound precoated sand |
| CN108326230A (en) * | 2018-03-26 | 2018-07-27 | 江苏翔晟重工有限公司 | A kind of reclamation technique |
| CN108380814A (en) * | 2018-05-05 | 2018-08-10 | 侯马市富达造型材料有限公司 | A kind of regeneration precoated sand and preparation method thereof of casting swage part |
| CN109093063A (en) * | 2018-08-29 | 2018-12-28 | 禹州市昆仑模具有限公司 | A kind of precoated sand regeneration method |
| CN109622881A (en) * | 2019-01-31 | 2019-04-16 | 宁波华铸环保科技有限公司 | A kind of precoated sand production control method |
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| CN109622881B (en) * | 2019-01-31 | 2021-01-15 | 天阳机械设备有限公司 | Production control method of precoated sand |
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