CN201482914U - Water glass waste sand regeneration system - Google Patents
Water glass waste sand regeneration system Download PDFInfo
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- CN201482914U CN201482914U CN2009201853932U CN200920185393U CN201482914U CN 201482914 U CN201482914 U CN 201482914U CN 2009201853932 U CN2009201853932 U CN 2009201853932U CN 200920185393 U CN200920185393 U CN 200920185393U CN 201482914 U CN201482914 U CN 201482914U
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Abstract
The utility model relates to a water glass waste sand regeneration system which comprises a used sand crushing appliance, a clean water pond, a sewage pond, a wet sand dewatering plant, a drying plant, a first-class wet process regeneration device, a second-class wet process regeneration device and a sewage processing device; after the used sand is crushed by the used sand crushing appliance and mixed with clean water in the clean water pond according to the preset proportion, the mixture enters the first-class wet process regeneration device and a second-class wet process regeneration device in series, and then passes through the wet sand dewatering plant and the drying plant to obtain the regenerated sand; the generated sewage enters the sewage processing device from the sewage pond for purifying treatment. The technical scheme of the system adopts the two-class wet process regeneration technology and has high Na2O removing rate; the obtained regenerated sand has good quality and directly replaces the new sand to be used as the facing sand or system sand; and the system has small water consumption, can recycle the processed sewage or discharge the sewage after reaching standards.
Description
Technical field
The utility model relates to the processing technology field of discarded waterglass quartz sand in the Steel Castings, relates in particular to a kind of waterglass antiquated sand regenerative system.
Background technology
In the production technology of steel-casting, use common CO at present
2The petrifying water glass sand is because that its technology is simple, cost is low is former thereby be widely used.But the antiquated sand collapsibility that this technology produces is poor, and casting cleaning and antiquated sand regeneration are all comparatively difficult; And wherein the addition of waterglass usually up to 6%-8%.Because discarded waterglass antiquated sand remained on surface a large amount of Na
2O, it is met the generation of water afterreaction and is alkaline NaOH, thereby can cause serious alkaline pollution to comprising the farmland around the abandoned land.Therefore, must regenerate, remove the Na on antiquated sand surface as much as possible discarded used sodium silicate sand
2The residual adhensive membrane of O makes antiquated sand return to the performance of fresh sand, thereby replaces fresh sand to carry out recycling.
For the regeneration of waterglass antiquated sand, generally include dry reclamation and wet reclamation in the prior art, all there is certain deficiency in this dual mode.
The device systems that dry reclamation is used is simple, invests lessly, and the secondary pollution problem of dust solves easily; But because CO
2The characteristics that the residual binding agent of water-glass sand is many, retained strength is high make the membrane removal rate low (being about 5-10%) of regenerative process, and reclaimed sand is of low quality, generally can only be used as floor sand.If after before dry reclamation, used sodium silicate sand being carried out heat pre-treatment, eliminate residue on the regeneration sand grains to the influence of (intensity, up time etc.) of reclaimed sand performance though can improve membrane removal rate (increasing to 20-30%), the part of dry reclamation, but reclaimed sand that it obtains and fresh sand still have bigger distance, but also can increase the energy consumption and the cost of antiquated sand regeneration significantly.
Wet reclamation is owing to utilized waterglass antiquated sand surface residue characteristics soluble in water, thereby be fit to the regeneration of waterglass antiquated sand, its not only membrane removal rate height (can greater than 90%), old sand reclamation rate height (reaching more than 90%), and the reclaimed sand quality that obtains also high (performance indications such as adhesion strength, up time, refractoriness are near fresh sand again), can replace fresh sand to do facing sand and system sand use.But still there is certain defective in wet reclamation: compare with dry reclamation, the device systems of wet reclamation is complicated; The more important thing is that the sewage of wet reclamation needs circulating and recovering or harmless emission after treatment.
The utility model content
The purpose of this utility model provides a kind of waterglass antiquated sand regenerative system, to solve the various defectives that dry reclamation simple in the prior art and wet reclamation exist.
In order to achieve the above object, the technical solution of the utility model proposes a kind of waterglass antiquated sand regenerative system, comprise old sand disintegrating apparatus, clear water reserviors, cesspool, damp sand dehydration equipment and drying plant, also comprise: one-level wet reclamation equipment, secondary wet reclamation equipment and sewage disposal device; Antiquated sand is broken and with after the clear water of described clear water reserviors mixes by preset ratio through described old sand disintegrating apparatus, enters described one-level wet reclamation equipment, secondary wet reclamation equipment successively, passes through described damp sand dehydration equipment and drying plant again and obtains reclaimed sand; The waste water that produces then enters described sewage disposal device by described cesspool and carries out purified treatment.
In the above-mentioned waterglass antiquated sand regenerative system, between described clear water reserviors and the one-level wet reclamation equipment, and described one-level wet reclamation equipment and secondary wet reclamation equipment between be equipped with grit water separator, be used for to damp sand carry out sand moisture from, the sewage that obtains then enters described cesspool.
In the above-mentioned waterglass antiquated sand regenerative system, also comprise: screening plant and magnetic separator, be connected after the described old sand disintegrating apparatus, be respectively applied for the screening and the magnetic sorting of broken sand.
In the above-mentioned waterglass antiquated sand regenerative system, the preset ratio of described broken sand and clear water is weight ratio 1: 1～1: 1.5.
In the above-mentioned waterglass antiquated sand regenerative system, described waste water or injects described clear water reserviors and recycles after the sewage disposal device purified treatment, thereby or is reached discharge standard and discharge.
In the above-mentioned waterglass antiquated sand regenerative system, also comprise: sludge treatment device is used for the slurry of the mud behind the described sewage disposal device sedimentation and filtration is recycled processing.
In the above-mentioned waterglass antiquated sand regenerative system, also comprise: the wet reclamation pond, be used to deposit the damp sand that described secondary wet reclamation equipment obtains, wait for entering described damp sand dehydration equipment and drying plant.
The technical solution of the utility model adopts two-stage wet reclamation technology, Na
2The clearance height of O; The reclaimed sand quality that obtains can directly replace fresh sand to make facing sand or system sand uses; And water consumption is little, simultaneously sewage be can be recycled or qualified discharge after treatment.
Description of drawings
Fig. 1 is the utility model waterglass antiquated sand regenerative system embodiment process structure schematic diagram;
Fig. 2 is the utility model waterglass antiquated sand regenerative system embodiment concrete structure schematic diagram.
The specific embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 is the utility model waterglass antiquated sand regenerative system embodiment process structure schematic diagram, as shown in the figure, the system of present embodiment comprises: old sand disintegrating apparatus 101, screening plant 102, magnetic separator 103, clear water reserviors 104, cesspool 105, one-level wet reclamation equipment 106, secondary wet reclamation equipment 107, sewage disposal device 108, damp sand dehydration equipment 109 and drying plant 110.Wherein, antiquated sand at first passes through 101 fragmentations of old sand disintegrating apparatus, after passing through the sorting of screening plant 102 and magnetic separator 103 again, mix by 1: 1～1: 1.5 weight ratio with the clear water of clear water reserviors 104, enter one-level wet reclamation equipment 106, secondary wet reclamation equipment 107 subsequently successively, dewater respectively, dry through damp sand dehydration equipment 109 and drying plant 110 at last, thereby obtain the higher reclaimed sand of quality; The waste water that above-mentioned one-level wet reclamation equipment 106 and secondary wet reclamation equipment 107 produce is then entered by cesspool 105 and carries out purified treatment in the sewage disposal device 108, and the clear water reserviors 104 that reinject afterwards carry out recycling or carried out qualified discharge.
The waterglass antiquated sand regenerative system of the foregoing description also comprises: wet reclamation pond (not shown), grit water separator (not shown) and sludge treatment device 111.Wherein: the wet reclamation pond is used to deposit the damp sand that secondary wet reclamation equipment 107 produces, and wait enters damp sand dehydration equipment 109 and drying plant 110 carries out using behind the dewatered drying; Grit water separator is provided with a plurality of, lay respectively between clear water reserviors 104 and the one-level wet reclamation equipment 106, between one-level wet reclamation equipment 106 and secondary wet reclamation equipment 107 and secondary wet reclamation equipment 107 and the wet reclamation pond, be used for to damp sand carry out preliminary sand moisture from, and the sewage that obtains then entered cesspool 105; Sludge treatment device 112 then is used for the slurry of the mud behind sewage disposal device 108 sedimentation and filtrations is recycled processing.
The waterglass antiquated sand regenerative system concrete structure of using the foregoing description as shown in Figure 2, it comprises: jaw crusher 201, bucket elevator 202, old sand bucket 203, screening plant 204, magnetic separator 205, damp sand pond 206, clear water reserviors 207, cesspool 208, grit water separator 209～211, one-level wet reclamation machine 212, secondary wet reclamation machine 213, wet reclamation pond 214, drying plant 215, cooling device 216, regeneration sand hopper 217.
The system process of above embodiment and last embodiment are basic identical, after antiquated sand is pulverized through jaw crusher 201, enter screening plant 204 successively and magnetic separator 205 carries out sorting by bucket elevator 202, old sand bucket 203, in damp sand pond 206, mix with the clear water of clear water reserviors 207 by a certain percentage again; The damp sand that mixes at first enters one-level wet reclamation machine 212 by grit water separator 209 and regenerates first, then entering secondary wet reclamation machine 213 by grit water separator 210 carries out secondary recycling, enters wet reclamation pond 214 by grit water separator 210 again and deposits wait oven dry use; Final step promptly is to enter in the drying plant 215 oven dry, is and then cooled off by cooling device 216, can reply use after entering deduster 218 dedustings by regeneration sand hopper 217 again.
In addition, also need below respectively sewage disposal device and the sludge treatment device that does not show among Fig. 2 to be described.
The wet reclamation sewage of used sodium silicate sand is strong basicity sewage, composition more single (mainly being NaOH), and its general processing procedure is: add operations such as sour neutralization, flocculation precipitation, filtration clarification.Sewage disposal device of the present utility model promptly is according to coagulation chemistry and hydromechanical relevant principle, and precipitation, filtration, clarification, concentrated four procedures of mud are concentrated on dexterously in the metallic object and carry out work.A complete set of technological process weak point, treatment and purification efficient height, floor space is little, easy and simple to handle, operating cost is lower.And through the practice surface, its sewage to water-glass sand has good treatment and purification effect, can realize the closed cycle of water and the zero-emission of sewage.
Mud slurry behind the above-mentioned sewage disposal device sedimentation and filtration, then make " mud cake " by sludge treatment device (slip drying press), " dust " Main Ingredients and Appearance that obtains after " mud cake " and deduster 218 dedustings is clay, SiO2 powder etc., can be used as the raw material of building brick.
In sum, the utility model waterglass antiquated sand regenerative system has following characteristics:
(1) adopts two-stage wet reclamation technology, Na
2The clearance height of O is 85-95%; And the single-stage wet reclamation, Na
2The clearance of O then is 70-80%;
(2) quality of washed sand is good, can replace fresh sand to do facing sand or system sand use;
(3) water consumption of wet reclamation is little, draws reclaimed sand water consumption 2-3 ton per ton through practice; And sewage can be recycled or qualified discharge after treatment.
More than be preferred forms of the present utility model, according to the disclosed content of the utility model, those of ordinary skill in the art can expect some identical, replacement schemes apparently, all should fall into the scope of the utility model protection.
Claims (5)
1. a waterglass antiquated sand regenerative system comprises old sand disintegrating apparatus, clear water reserviors, cesspool, damp sand dehydration equipment and drying plant, it is characterized in that this system also comprises: one-level wet reclamation equipment, secondary wet reclamation equipment and sewage disposal device; Antiquated sand is broken and with after the clear water of described clear water reserviors mixes by preset ratio through described old sand disintegrating apparatus, enters described one-level wet reclamation equipment, secondary wet reclamation equipment successively, passes through described damp sand dehydration equipment and drying plant again and obtains reclaimed sand; The waste water that produces then enters described sewage disposal device by described cesspool and carries out purified treatment.
2. waterglass antiquated sand regenerative system as claimed in claim 1, it is characterized in that, between described clear water reserviors and the one-level wet reclamation equipment, and described one-level wet reclamation equipment and secondary wet reclamation equipment between be equipped with grit water separator, be used for to damp sand carry out sand moisture from, the sewage that obtains then enters described cesspool.
3. waterglass antiquated sand regenerative system as claimed in claim 2 is characterized in that this system also comprises: screening plant and magnetic separator, be connected after the described old sand disintegrating apparatus, and be respectively applied for the screening and the magnetic sorting of broken sand.
4. waterglass antiquated sand regenerative system as claimed in claim 1 is characterized in that this system also comprises: sludge treatment device is used for the slurry of the mud behind the described sewage disposal device sedimentation and filtration is recycled processing.
5. waterglass antiquated sand regenerative system as claimed in claim 1 is characterized in that this system also comprises: the wet reclamation pond, be used to deposit the damp sand that described secondary wet reclamation equipment obtains, and wait for entering described damp sand dehydration equipment and drying plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201853932U CN201482914U (en) | 2009-06-08 | 2009-06-08 | Water glass waste sand regeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201853932U CN201482914U (en) | 2009-06-08 | 2009-06-08 | Water glass waste sand regeneration system |
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| CN201482914U true CN201482914U (en) | 2010-05-26 |
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| CN2009201853932U Expired - Fee Related CN201482914U (en) | 2009-06-08 | 2009-06-08 | Water glass waste sand regeneration system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615243A (en) * | 2012-03-27 | 2012-08-01 | 华中科技大学 | Foundry used sand wet intermittent regeneration method and equipment thereof |
| CN103350186A (en) * | 2013-07-05 | 2013-10-16 | 广西玉林玉柴工业化工有限公司 | Mixed type foundry waste sand scrubbing and recovering equipment |
| CN103406490A (en) * | 2013-07-05 | 2013-11-27 | 广西玉林玉柴工业化工有限公司 | Foundry waste sand regeneration and reuse method and device |
| CN103934412A (en) * | 2014-04-17 | 2014-07-23 | 无锡华统环保工程有限公司 | Device for continuously washing and recycling foundry waste sand |
| CN104759584A (en) * | 2015-04-22 | 2015-07-08 | 莒州集团有限公司 | Water glass waste sand regeneration optimizing treatment method and water glass waste sand regeneration optimizing treatment system |
| CN104959531A (en) * | 2015-07-22 | 2015-10-07 | 平顶山市沙河机械加工厂 | Waste foundry sand dealkalizing regenerative production equipment |
| CN109482809A (en) * | 2018-12-25 | 2019-03-19 | 大连汇隆活塞股份有限公司 | A kind of processing method of waste and old waterglass chrome ore |
| CN110293205A (en) * | 2019-07-26 | 2019-10-01 | 唐山汇富工程技术有限公司 | A kind of casting model powder recycling technique method |
| CN111702126A (en) * | 2020-07-08 | 2020-09-25 | 南阳仁创砂业科技有限公司 | Inorganic binder used sand mechanical wet regeneration device and method |
| CN112570653A (en) * | 2020-11-23 | 2021-03-30 | 优钢新材料科技(湖南)有限公司 | Full-wet sand treatment system for water recycling |
-
2009
- 2009-06-08 CN CN2009201853932U patent/CN201482914U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615243A (en) * | 2012-03-27 | 2012-08-01 | 华中科技大学 | Foundry used sand wet intermittent regeneration method and equipment thereof |
| CN103406490B (en) * | 2013-07-05 | 2015-11-18 | 玉林市兰科铸造环保设备有限公司 | Recycling cast waste sand reuse method and equipment |
| CN103350186A (en) * | 2013-07-05 | 2013-10-16 | 广西玉林玉柴工业化工有限公司 | Mixed type foundry waste sand scrubbing and recovering equipment |
| CN103406490A (en) * | 2013-07-05 | 2013-11-27 | 广西玉林玉柴工业化工有限公司 | Foundry waste sand regeneration and reuse method and device |
| CN103934412A (en) * | 2014-04-17 | 2014-07-23 | 无锡华统环保工程有限公司 | Device for continuously washing and recycling foundry waste sand |
| CN104759584A (en) * | 2015-04-22 | 2015-07-08 | 莒州集团有限公司 | Water glass waste sand regeneration optimizing treatment method and water glass waste sand regeneration optimizing treatment system |
| CN104959531A (en) * | 2015-07-22 | 2015-10-07 | 平顶山市沙河机械加工厂 | Waste foundry sand dealkalizing regenerative production equipment |
| CN109482809A (en) * | 2018-12-25 | 2019-03-19 | 大连汇隆活塞股份有限公司 | A kind of processing method of waste and old waterglass chrome ore |
| CN110293205A (en) * | 2019-07-26 | 2019-10-01 | 唐山汇富工程技术有限公司 | A kind of casting model powder recycling technique method |
| CN110293205B (en) * | 2019-07-26 | 2021-04-02 | 唐山汇富工程技术有限公司 | Casting sand recycling process method |
| CN111702126A (en) * | 2020-07-08 | 2020-09-25 | 南阳仁创砂业科技有限公司 | Inorganic binder used sand mechanical wet regeneration device and method |
| CN112570653A (en) * | 2020-11-23 | 2021-03-30 | 优钢新材料科技(湖南)有限公司 | Full-wet sand treatment system for water recycling |
| CN112570653B (en) * | 2020-11-23 | 2022-09-13 | 优钢新材料科技(湖南)有限公司 | Full-wet sand treatment system for water recycling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Zuosing M & E Co., Ltd. Assignor: Zhang Peigen Contract record no.: 2011320001190 Denomination of utility model: Water glass waste sand regeneration system Granted publication date: 20100526 License type: Exclusive License Record date: 20111220 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20140608 |