CN102873268B - Foundry self-hardening sand recycling system process - Google Patents
Foundry self-hardening sand recycling system process Download PDFInfo
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- CN102873268B CN102873268B CN201210361378.5A CN201210361378A CN102873268B CN 102873268 B CN102873268 B CN 102873268B CN 201210361378 A CN201210361378 A CN 201210361378A CN 102873268 B CN102873268 B CN 102873268B
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Abstract
The invention discloses a foundry self-hardening sand recycling system process, which comprises a delivery system, a crushing, screening and magnetic separation system, a vibrating regeneration system, a hoisting system, a primary dedusting system, a centrifugal regeneration system, a boiling cooling system, a secondary dedusting system, a sand storage system and an electric control system. The invention overcomes the defects of the prior art, waste sand is recycled, the production cost is saved, energy is saved, emission is reduced, environment is protected, and the pollution is avoided.
Description
Technical field
The present invention relates to casting with from hard husky production technical field, specifically belong to casting self-hardening sand recovery and reusing and recycling system.
Background technology
The antiquated sand that tradition self-hardening sand production line produces is all disposable, mostly takes to outwell, landfill is in wilderness.Because casting adhesive many employings waterglass (sodium silicate) of self-hardening sand.Resin+curing agent etc.And in antiquated sand containing attached sodium silicate be by (Na2o/SiO2) aqueous solution for the multiple compounds of main constituent.Resin sand+curing agent adhesive, main chemical compositions is the organic or inorganic chemical raw material compositions such as urea, methyl alcohol, sugar alcohol (CH2OH), it is to cause great environmental pollution that these chemical adhesives residual to be adsorbed on the grains of sand soil, and molding sand single use is also a kind of waste greatly to resource, production cost is high.
Summary of the invention
The object of this invention is to provide casting self-hardening sand recovery and reusing and recycling system, overcome the deficiencies in the prior art, take, to the recycling of antiquated sand, to save production cost, energy-saving and emission-reduction, reach environmental protection, stop to pollute.
The technical solution used in the present invention is as follows:
Casting self-hardening sand recovery and reusing and recycling system, this described technique comprises, induction system, crushing and screening magnetic separation system, vibration regenerative system, elevator system, 1 dust pelletizing system, centrifugal regenerative system, boiling cooling system, 2 dust pelletizing systems, storage sand system, electric-control systems.
Described induction system comprises, permanent magnetism belt feeder, magnetic separation great wheel, and belt feeder conveying antiquated sand block, arranges magnetic separation great wheel and remove iron compound, enter crushing and screening magnetic separation system above belt feeder.
Described crushing and screening magnetic separation system comprises, centrifugal regenerating device, disintegrating machine, bucket elevator, vibration straight line shaker and oscillating feeder, old sand block in sand hopper is evenly fed in raw material to disintegrating machine by oscillating feeder, old sand completes fragmentation, just regeneration and screening in disintegrating machine, the old sand being less than 3mm after screening enters vibration straight line shaker by bucket elevator and carries out secondary screening, then enters the inert material that centrifugal regenerating device removes surface.
Described vibration regenerative system, this system collection fragmentation, demoulding, sieve powder, conveying and one, be regenerated as with rubbing and led broken and demoulding work, then removed and cooling by ashes by vibration fluidization cooler.
Described vibration fluidization cooler comprises the orifice plate assembly composition of cell body, vibrating motor, thick, fine-structure mesh plate composition, vibrating motor makes whole cell body produce oscillating movement, on the top of cell body, orifice plate assembly is housed, when hot sand enters after on cooler orifice plate assembly, along with moving to discharge end from feed end in the direction of vibration force; The bottom of orifice plate assembly is air chamber, and air enters air chamber by blower fan by airduct and elastic caoutchouc tube connector etc., and through orifice plate assembly and layer of sand, take away ash content and heat, this ash content gas is discharged by dust excluding hood; The fine-structure mesh expanded metals hole of described orifice plate assembly should be ventilative, can not leak sand again.
The air quantity of blower system, blast are the important indicators ensureing that vibration fluidization cooler normally works.The size of air quantity and blast is that condition is determined premised on the air capacity meeting hot sand cooling and layer of sand obtain best fluidized state.Volume damper is provided with for adjusting total blast volume at the air inlet of blower fan.Before fan inlet, also filter screen can be set as requested, the air cleaner of band noise elimination function is even set, to stop that the thing such as the scraps of paper, plastic sheet sucks.
Described dust pelletizing system arranges machinery rotation reverse blowing dust remover at the exhausting point of disintegrating machine, regenerating device and vibration fluidization cooler, puddle mixer and sand hopper thereof are equipped with a single-point sack cleaner, if two tunnel dedusting branches, 1 dedusting is used for puddle mixer boiling device and reduces powder content in sand further and sand export takes out peculiar smell, and 2 dedustings are for storing up sand storage discharging dust control.
Described electric-control system comprises, main control cabinet, PLC, imitation screen, sub-control box.
Described bucket elevator is provided with speed protection device.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention takes, to the recycling of antiquated sand, to save production cost, energy-saving and emission-reduction, environmental protection, and technique is simple, convenient operation and control.
Accompanying drawing explanation
Fig. 1 is that system equipment of the present invention arranges schematic diagram.
Detailed description of the invention
See accompanying drawing, casting self-hardening sand recovery and reusing and recycling system, this technique comprises, induction system, crushing and screening magnetic separation system, vibration regenerative system, elevator system, 1 dust pelletizing system, centrifugal regenerative system, boiling cooling system, 2 dust pelletizing systems, storage sand system, dust pelletizing system and electric-control systems.
Induction system comprises, belt feeder, magnetic separation great wheel, belt feeder transport of sand, arranges magnetic separation great wheel and removes iron compound, then enter regenerating device above belt feeder.
Crushing and screening magnetic separation system comprises, centrifugal regenerating device, disintegrating machine, bucket elevator, vibration straight line shaker and oscillating feeder, old sand block in sand hopper is evenly fed in raw material to disintegrating machine by oscillating feeder, old sand completes fragmentation, just regeneration and screening in disintegrating machine, the old sand being less than 3mm after screening enters vibration straight line shaker by bucket elevator and carries out secondary screening, then enter the inert material that centrifugal regenerating device removes surface, ensure the reclamation rate of demoulding rate and old sand.Because the shake temperature temperature difference is higher, sand lump lumpiness is large, adopts Y3720 bucket elevator (heat resistant adhesive tape) after regenerating device.Bucket elevator all selects driving, and the Y3720 series bucket elevator of small bore, adopt intensified nylon core belt, bucket elevator is provided with speed protection device.Disintegrating machine adopts vibrating motor to be power, collects fragmentation, demoulding, sieve powder, is transported in one, and be regenerated as with rubbing and led broken and demoulding work, be typical soft reclaim equiment, have reclamation of return sand rate high, the rate of recovery reaches more than 95%; Greensand particle shape is good, granularity significantly improves, grain type is more reasonable; Than the great efforts of straight-line oscillation type regenerating device rubbing, the time is long, demoulding is effective;
Vibration regenerative system, this system collection fragmentation, demoulding, sieve powder, conveying and one, be regenerated as with rubbing and led broken and demoulding work, then removed and cooling by ashes by vibration fluidization cooler.
Vibration fluidization cooler comprises the orifice plate assembly composition of cell body, vibrating motor, thick, fine-structure mesh plate composition, vibrating motor makes whole cell body produce oscillating movement, on the top of cell body, orifice plate assembly is housed, when hot sand enters after on cooler orifice plate assembly, along with moving to discharge end from feed end in the direction of vibration force; The bottom of orifice plate assembly is air chamber, and air enters air chamber by blower fan by airduct and elastic caoutchouc tube connector etc., and through orifice plate assembly and layer of sand, take away ash content and heat, this ash content gas is discharged by dust excluding hood; The fine-structure mesh expanded metals hole of described orifice plate assembly should be ventilative, can not leak sand again.
The air quantity of blower system, blast are the important indicators ensureing that vibration fluidization cooler normally works.The size of air quantity and blast is that condition is determined premised on the air capacity meeting hot sand cooling and layer of sand obtain best fluidized state.Volume damper is provided with for adjusting total blast volume at the air inlet of blower fan.Before fan inlet, also filter screen can be set as requested, the air cleaner of band noise elimination function is even set, to stop that the thing such as the scraps of paper, plastic sheet sucks.
Dust pelletizing system arranges machinery rotation reverse blowing dust remover at the exhausting point of disintegrating machine, regenerating device and vibration fluidization cooler, puddle mixer and sand hopper thereof are equipped with a single-point sack cleaner, if two tunnel dedusting branches, 1 dedusting is used for puddle mixer boiling device and reduces powder content in sand further and sand export takes out peculiar smell, and 2 dedustings are used for sand storage discharging dust control.Have employed special collection dolly to the waste material after magnetic separation thing, crushing and screening, bushel iron dolly solves the evaporating, emitting, dripping or leaking of liquid or gas phenomenon of waste material by chute, ensure that the clean of environment.
Electric-control system comprises, main control cabinet, PLC, imitation screen, sub-control box.Automatic joint control completely, sectional controls, manual control, and operation more for convenience.Programmable Logic Controller: complete control to field apparatus, detection according to technological requirement.The a whole set of electric-control system of sand Reclaimed Section divides operation automatically and controls two parts separately.Automatic operation part is divided into several unit by concrete scheme requirement, both can automatically run by whole line, according to concrete operating mode, automatically can control by unit again.In system, all devices is all provided with independently gauge tap, to meet plant maintenance and commissioning requirements.Puddle mixer electrical control cubicles is placed near this equipment, and control program is through proving closely, testing, and electrical control cubicles is provided with the simulating display screen that puddle mixer runs, display device duty, O&M is very convenient.The verification button of curing agent and adhesive, verifies foregoing.
Whole system is by PLC execution interlocked control, safeguard protection and operation monitoring, and switch board panel is provided with dynamic analog display screen, for the duty monitoring each equipment.When a certain equipment has operation troubles, allow the equipment downtime of this unit before this equipment immediately.Great convenience is provided to maintenance.
Claims (4)
1. casting self-hardening sand recovery and reusing and recycling system, is characterized in that: comprise induction system, crushing and screening magnetic separation system, vibration regenerative system, elevator system, 1 dust pelletizing system, centrifugal regenerative system, boiling cooling system, 2 dust pelletizing systems, storage sand system, electric-control systems;
Described dust pelletizing system arranges machinery rotation reverse blowing dust remover at the exhausting point of disintegrating machine, regenerating device and vibration fluidization cooler, puddle mixer and sand hopper thereof are equipped with a single-point sack cleaner, if two tunnel dedusting branches, 1 dedusting is used for puddle mixer boiling device and reduces powder content in sand further and sand export takes out peculiar smell, and 2 dedustings are for storing up sand storage discharging dust control;
Described electric-control system comprises, main control cabinet, PLC, imitation screen, sub-control box;
Described crushing and screening magnetic separation system comprises, centrifugal regenerating device, disintegrating machine, bucket elevator, vibration straight line shaker and oscillating feeder, old sand block in sand hopper is evenly fed in raw material to disintegrating machine by oscillating feeder, old sand completes fragmentation, just regeneration and screening in disintegrating machine, the old sand being less than 3mm after screening enters vibration straight line shaker by bucket elevator and carries out secondary screening, then enters the inert material that centrifugal regenerating device removes surface;
Described vibration regenerative system, this system collection fragmentation, demoulding, sieve powder, conveying and one, be regenerated as with rubbing and led broken and demoulding work, then removed and cooling by ashes by vibration fluidization cooler.
2. casting self-hardening sand recovery and reusing and recycling system according to claim 1, it is characterized in that: described induction system comprises permanent magnetism belt feeder, magnetic separation great wheel, belt feeder conveying antiquated sand block, arranges magnetic separation great wheel and removes iron compound, enter crushing and screening magnetic separation system above belt feeder.
3. casting self-hardening sand recovery and reusing and recycling system according to claim 1, it is characterized in that: described vibration fluidization cooler comprises the orifice plate assembly composition of cell body, vibrating motor, thick, fine-structure mesh plate composition, vibrating motor makes whole cell body produce oscillating movement, on the top of cell body, orifice plate assembly is housed, when hot sand enters after on cooler orifice plate assembly, along with moving to discharge end from feed end in the direction of vibration force; The bottom of orifice plate assembly is air chamber, and air enters air chamber by blower fan by airduct and elastic caoutchouc tube connector, and through orifice plate assembly and layer of sand, take away ash content and heat, this ash content gas is discharged by dust excluding hood.
4. casting self-hardening sand recovery and reusing and recycling system according to claim 1, is characterized in that: described bucket elevator is provided with speed protection device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210361378.5A CN102873268B (en) | 2012-09-25 | 2012-09-25 | Foundry self-hardening sand recycling system process |
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| CN201210361378.5A CN102873268B (en) | 2012-09-25 | 2012-09-25 | Foundry self-hardening sand recycling system process |
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| CN102873268A CN102873268A (en) | 2013-01-16 |
| CN102873268B true CN102873268B (en) | 2015-04-22 |
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| CN103521699B (en) * | 2013-10-21 | 2015-09-23 | 青岛和德隆机械有限公司 | Clay regenerating used system |
| CN103752765B (en) * | 2014-01-27 | 2016-03-02 | 无锡锡南铸造机械股份有限公司 | Intelligent short route sand regenerative system |
| CN103909215B (en) * | 2014-04-23 | 2017-01-25 | 湖州双金机械配件有限公司 | Method and device for regenerating casting sand of lost foam casting production line |
| CN103909216B (en) * | 2014-04-23 | 2016-04-20 | 湖州双金机械配件有限公司 | A kind of Lost Form Casting Production Line sand preparing system |
| CN104162630B (en) * | 2014-09-05 | 2017-03-15 | 甘肃永靖昌盛铸钢有限责任公司 | A kind of recycling method of casting discarded molding 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 |
| CN104975185A (en) * | 2015-07-21 | 2015-10-14 | 合肥智凯电子科技有限公司 | Environment-friendly metal recovery system |
| CN105328115B (en) * | 2015-10-19 | 2017-09-01 | 戴伟平 | The renovation process of cast waste sand hot plasma |
| CN106378415A (en) * | 2016-08-29 | 2017-02-08 | 山西永益铸管股份有限公司 | Pipe casting waste sand recovery method |
| CN107052233A (en) * | 2016-12-30 | 2017-08-18 | 绵阳易简环保科技有限公司 | Environmental-protecting type casting old sand Dry recovery processing equipment |
| CN107497994A (en) * | 2017-09-19 | 2017-12-22 | 襄阳新金开泵业有限公司 | A kind of molding sand reclaiming device |
| CN108555236B (en) * | 2018-01-23 | 2020-04-03 | 无锡职业技术学院 | Lost foam casting sand processing system |
| CN109702142A (en) * | 2019-01-17 | 2019-05-03 | 上柴动力海安有限公司 | A kind of resin sand production recovery of circulatory system |
| CN111054887B (en) * | 2020-01-17 | 2021-07-23 | 宁波绿能铸造实业有限公司 | A environment-friendly equipment for abandonment molding sand is retrieved |
| CN112453316A (en) * | 2020-11-18 | 2021-03-09 | 青岛盛美环保科技有限公司 | Modified water glass regenerated sand line and regeneration method thereof |
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Address after: 243191 Pioneer Park, Xiangshan Town, Yushan District, Maanshan City, Anhui Province Patentee after: Anhui Chenguang high wear resistant Technology Co.,Ltd. Address before: 243191 Pioneer Park, Xiangshan Town, Yushan District, Maanshan City, Anhui Province Patentee before: Anhui Taoshi high wear resistant Technology Co.,Ltd. Address after: 243191 Pioneer Park, Xiangshan Town, Yushan District, Maanshan City, Anhui Province Patentee after: Anhui Taoshi high wear resistant Technology Co.,Ltd. Address before: 243191 Pioneer Park, Xiangshan Town, Yushan District, Maanshan City, Anhui Province Patentee before: MA'ANSHAN DAWN HIGH ABRASION TECHNOLOGY DEVELOPMENT Co.,Ltd. |