CN102335720A - Process and device for reusing waste foundry sand - Google Patents
Process and device for reusing waste foundry sand Download PDFInfo
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- CN102335720A CN102335720A CN2011103336468A CN201110333646A CN102335720A CN 102335720 A CN102335720 A CN 102335720A CN 2011103336468 A CN2011103336468 A CN 2011103336468A CN 201110333646 A CN201110333646 A CN 201110333646A CN 102335720 A CN102335720 A CN 102335720A
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- discharging opening
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- belt conveyor
- cast waste
- waste sand
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Abstract
The invention relates to a device for reusing waste foundry sand, which comprises vibrating screens, a belt conveyer, a crusher and a hopper. The device is characterized in that a vibrating screen I is mounted under a discharging port of the hopper; the discharging port of the vibrating screen I corresponds to a feeding port of the crusher; a vibrating screen II is mounted under the discharging port of the crusher; the discharging port of the vibrating screen II corresponds to the belt conveyer; and the discharging port of the belt conveyer corresponds to the feeding port of a sand cleaning machine. The technical scheme of the invention is that screening, crushing, iron-removing and cleaning devices are organically combined and foundry sand and sodium silicate in the waste foundry sand are extracted, thereby solving the problems of the prior art, such as waste foundry sand influence, ecological environmental pollution, land resource occupation, and the like, while efficiently saving resources. The device for reusing waste foundry sand is characterized by reasonable structure, high recovery efficiency, low cost, and the like, and is suitable for the processing of waste foundry sand.
Description
Technical field
The present invention relates to a kind of cast waste sand and utilize technology and device again.
Background technology
Sodium silicate solution is also referred to as waterglass or bubble flower alkali, and it is widely used in casting industry, is a kind of casting model powder binding agent that cleans moulding, coremaking preferably; In mechanical industry; Casting weight accounts for more than 60% of machine gross weight, will produce the cast waste sand that contains sodium metasilicate in a large number like this, because the collapsibility of cast waste sand is poor; Mainly be after taking screening at present; Sand under the screening is mixed the back use with fresh sand, the cast waste sand of larger particles goes out of use, on the one hand because the Na that contains in the antiquated sand
2The O particle, 60 percent water soluble is diffused in the water body with rainwater, makes the soil neutral and alkali strengthen, influence ecological environment, taking of soil building ground resource caused environmental pollution simultaneously on the other hand.
Summary of the invention
Order of the present invention is the defective that overcomes prior art; Provide a kind of with after the cast waste sand processing; Be used to produce the mother liquor of silicic acid sodium sand, casting model powder and production waterglass, improve resource utilization, reduce production costs and the cast waste sand of environmental pollution utilizes technology and device again.
The present invention realizes through following technical proposals: a kind of cast waste sand utilizes technology again, and this technology may further comprise the steps:
1) cast waste sand is concentrated is placed in the aggregate bin;
2) screening: the material in the aggregate bin is put into the vibratory sieve I, pass through the screening of artificial and vibratory sieve I simultaneously, with iron block bigger in the cast waste sand and visible contaminant removal;
3) fragmentation: through the vibratory sieve I, the bulky grain material in the cast waste sand sent into carry out fragmentation in the disintegrating machine, the material after the fragmentation falls into belt conveyor and is transported to sand washer;
4) clean: utilize the impurity such as dust in the cast waste sand after water is handled above-mentioned steps to remove, the water after the cleaning concentrates in the circulating water pool, after deposition, supernatant can be used for making the mother liquor of bath of glass when reaching finite concentration.
Between the discharging opening of belt conveyor and sand washer, the rewinding storehouse is installed, the discharging opening in rewinding storehouse is corresponding with the sand washer charging aperture.
Above-mentioned vibratory sieve I is a two-stage sorting type hummer screen, and the thick discharging opening of two-stage sorting type hummer screen is corresponding with the feed of crusher mouth, and thin discharging opening is corresponding with belt conveyor.
The electromagnetism tapping device is installed on belt conveyor.
A kind of cast waste sand re-use device; Involving vibrations sieve, belt conveyor, disintegrating machine, hopper; It is characterized in that the vibratory sieve I is installed below the discharging opening of aggregate bin, the discharging opening of vibratory sieve is corresponding with the feed of crusher mouth, and the discharging opening below of disintegrating machine is equipped with the vibratory sieve II; The discharging opening of vibratory sieve II is corresponding with belt conveyor, and the discharging opening of belt conveyor is corresponding with the sand washer charging aperture.
Between the discharging opening of belt conveyor and sand washer, the rewinding storehouse is installed, the discharging opening in rewinding storehouse is corresponding with the sand washer charging aperture.
Above-mentioned vibratory sieve I is a two-stage sorting type hummer screen, and the thick discharging opening of two-stage sorting type hummer screen is corresponding with the feed of crusher mouth, and thin discharging opening is corresponding with belt conveyor.。
The electromagnetism tapping device is installed on above-mentioned belt conveyor.
Technical scheme of the present invention is that devices such as screening, pulverizing, deironing, cleaning are organically combined; Foundry sand in the cast waste sand, sodium metasilicate are proposed; Problems such as cast waste sand influence in the prior art, pollution of ecological environment, land occupation resource have been solved on the one hand; Simultaneously practice thrift resource effectively, had characteristics such as technology is simple, apparatus arrangement structure is reasonable, organic efficiency is high, cost is low, be fit to the processing needs of cast waste sand.
Description of drawings
Fig. 1 is a technological process illustrated of the present invention;
Fig. 2 is an equipment peace journey sketch map of the present invention.
The specific embodiment
Like Fig. 1, shown in 2; At first cast waste sand is put into aggregate bin 1; Vibratory sieve I 2 through being installed in aggregate bin discharging opening below is sieved cast waste sand; What the vibratory sieve I adopted is two-stage sorting type hummer screen, the bulky grain material that the thick discharging opening 13 through two-stage sorting type hummer screen sieves out, and the charging aperture that gets into disintegrating machine 12 carries out fragmentation; The accept that thin discharging opening 3 through two-stage sorting type hummer screen sieves out; Drop on the belt conveyor 9; By belt conveyor be transported to concentrate in the rewinding storehouse 7 after, get in the sand washer 6 by the discharging opening in rewinding storehouse, the impurity such as dust in the cast waste sand are removed.Sand washer adopts screw sand washer, by water pump 4 water is squeezed into and is passed through helical stir in the screw sand washer, and the impurity such as dust in the cast waste sand are washed off.
Material after crusher in crushing gets into vibratory sieve II 11 and screens; Qualified material drops on the belt conveyor, by belt conveyor be transported in the rewinding storehouse concentrate after, get in the sand washer by the discharging opening in rewinding storehouse; Impurity such as dust in the cast waste sand are removed, just can be reached and make Na
2SiO
3Material standard advance.
For with iron block bigger in the cast waste sand and visible contaminant removal, vibratory sieve I place can adopt artificial 14 to choose the bigger iron block that is blended in the sand and visible impurity.Electromagnetism tapping device 10 is installed on belt conveyor, and belt feeder adopts electromagnetism can the iron in the cast waste sand thoroughly be removed except that iron roller 8 simultaneously.
, after drying, can be used as and make Na through the sand after the sand washer cleaning
2SiO
3Raw material and casting model powder use, the water after the cleaning is post precipitation in pond 5, can be used for making the mother liquor of waterglass.
Claims (8)
1. a cast waste sand utilizes technology again, and this technology may further comprise the steps:
1) cast waste sand is concentrated is placed in the aggregate bin;
2) screening: the material in the aggregate bin is put into the vibratory sieve I, pass through the screening of artificial and vibratory sieve I simultaneously, with iron block bigger in the cast waste sand and visible contaminant removal;
3) fragmentation: through the vibratory sieve I, the bulky grain material in the cast waste sand sent into carry out fragmentation in the disintegrating machine, the material after the fragmentation falls into belt conveyor and is transported to sand washer;
4) clean: utilize the impurity such as dust in the cast waste sand after water is handled above-mentioned steps to remove, the water after the cleaning concentrates in the circulating water pool, after deposition, supernatant can be used for making the mother liquor of bath of glass when reaching finite concentration.
2. cast waste sand according to claim 1 utilizes technology again, it is characterized in that between the discharging opening of belt conveyor and sand washer, the rewinding storehouse being installed, and the discharging opening in rewinding storehouse is corresponding with the sand washer charging aperture.
3. cast waste sand according to claim 2 utilizes technology again; It is characterized in that above-mentioned vibratory sieve I is a two-stage sorting type hummer screen; The thick discharging opening of two-stage sorting type hummer screen is corresponding with the feed of crusher mouth, and thin discharging opening is corresponding with belt conveyor.
4. cast waste sand according to claim 1 utilizes technology again, it is characterized in that on belt conveyor, being equipped with the electromagnetism tapping device.
5. cast waste sand re-use device; Involving vibrations sieve, belt conveyor, disintegrating machine, hopper; It is characterized in that in the discharging opening below of aggregate bin (1) vibratory sieve I (2) being installed, the discharging opening of vibratory sieve I is corresponding with disintegrating machine (12) charging aperture, and the discharging opening below of disintegrating machine is equipped with vibratory sieve II (11); The discharging opening of vibratory sieve II is corresponding with belt conveyor (9), and the discharging opening of belt conveyor is corresponding with sand washer (6) charging aperture.
6. cast waste sand re-use device according to claim 5 is characterized in that between the discharging opening of belt conveyor and sand washer, the rewinding storehouse being installed, and the discharging opening in rewinding storehouse is corresponding with the sand washer charging aperture.
7. cast waste sand according to claim 6 utilizes technology again; It is characterized in that above-mentioned vibratory sieve I is a two-stage sorting type hummer screen; The thick discharging opening of two-stage sorting type hummer screen is corresponding with the feed of crusher mouth, and thin discharging opening is corresponding with belt conveyor.
8. cast waste sand re-use device according to claim 7 is characterized in that on above-mentioned belt conveyor (9), being equipped with electromagnetism tapping device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103336468A CN102335720A (en) | 2011-10-28 | 2011-10-28 | Process and device for reusing waste foundry sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103336468A CN102335720A (en) | 2011-10-28 | 2011-10-28 | Process and device for reusing waste foundry sand |
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| CN102335720A true CN102335720A (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103336468A Pending CN102335720A (en) | 2011-10-28 | 2011-10-28 | Process and device for reusing waste foundry sand |
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| CN (1) | CN102335720A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308074A (en) * | 2014-10-17 | 2015-01-28 | 五莲县玉星机械厂 | Recycling production line for dry casting sand |
| CN105478663A (en) * | 2016-02-14 | 2016-04-13 | 丁启民 | Device and method for recovering used sodium silicate sand for casting |
| CN108705030A (en) * | 2018-07-04 | 2018-10-26 | 柳晶（溧阳）环保科技有限公司 | A kind of cast waste sand processing equipment |
| CN110723890A (en) * | 2019-11-01 | 2020-01-24 | 江苏孚日玻璃科技有限公司 | Automatic energy-concerving and environment-protective formula glass kiln of flip |
| CN111283139A (en) * | 2018-12-27 | 2020-06-16 | 李秀英 | Casting raw sand screening method |
| CN111482554A (en) * | 2020-03-31 | 2020-08-04 | 福建蓝韵再生资源有限公司 | Method for preparing reclaimed sand from used sodium silicate sand |
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| JPS60244445A (en) * | 1984-05-17 | 1985-12-04 | Toyota Motor Corp | Separating and recovering method of used molding sand |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308074A (en) * | 2014-10-17 | 2015-01-28 | 五莲县玉星机械厂 | Recycling production line for dry casting sand |
| CN104308074B (en) * | 2014-10-17 | 2016-05-18 | 五莲县玉星机械厂 | Casting dry sand cycling and reutilization production line |
| CN105478663A (en) * | 2016-02-14 | 2016-04-13 | 丁启民 | Device and method for recovering used sodium silicate sand for casting |
| CN108705030A (en) * | 2018-07-04 | 2018-10-26 | 柳晶（溧阳）环保科技有限公司 | A kind of cast waste sand processing equipment |
| CN108705030B (en) * | 2018-07-04 | 2024-03-29 | 柳晶（溧阳）环保科技有限公司 | Foundry waste sand treatment equipment |
| CN111283139A (en) * | 2018-12-27 | 2020-06-16 | 李秀英 | Casting raw sand screening method |
| CN111283139B (en) * | 2018-12-27 | 2021-01-15 | 李秀英 | Casting raw sand screening method |
| CN110723890A (en) * | 2019-11-01 | 2020-01-24 | 江苏孚日玻璃科技有限公司 | Automatic energy-concerving and environment-protective formula glass kiln of flip |
| CN111482554A (en) * | 2020-03-31 | 2020-08-04 | 福建蓝韵再生资源有限公司 | Method for preparing reclaimed sand from used sodium silicate sand |
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Application publication date: 20120201 |