CN201969827U - Production line for roasting regeneration of resin waste sand - Google Patents

Production line for roasting regeneration of resin waste sand Download PDF

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Publication number
CN201969827U
CN201969827U CN2011200851388U CN201120085138U CN201969827U CN 201969827 U CN201969827 U CN 201969827U CN 2011200851388 U CN2011200851388 U CN 2011200851388U CN 201120085138 U CN201120085138 U CN 201120085138U CN 201969827 U CN201969827 U CN 201969827U
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CN
China
Prior art keywords
sand
regeneration
roaster
roasting
elevator
Prior art date
Application number
CN2011200851388U
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Chinese (zh)
Inventor
刘正高
Original Assignee
刘正高
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Priority to CN2011200851388U priority Critical patent/CN201969827U/en
Application granted granted Critical
Publication of CN201969827U publication Critical patent/CN201969827U/en

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Abstract

The utility model relates to a production line for roasting regeneration of resin waste sand, which comprises a pretreatment system, a hot regeneration device, a dust removal system and an electric control system, wherein the electric control system is electrically connected with the pretreatment system, the ho regeneration device and the dust removal system respectively; the pretreatment system comprises a crushing and sieving machine, a first lifting machine, a magnetic separation machine and a middle sand hopper, which are connected in sequence; the hot regeneration device comprises a screw feeder, a roaster, a cooling bed, a second lifting machine and a regeneration sand hopper, which are connected in sequence; the screw feeder is connected with the middle sand hopper; and the dust removal system comprises a settling chamber, a dust remover and a fan and connected with the crushing and sieving machine, the roaster and the cooling bed through pipes respectively. The production line can effectively treat the resin waste sand to produce regenerated sand which is recyclable, so as to achieve the effect of turning waste into treasure, reduce the cost of casts and prevent the environmental pollution due to the discharge of waste sand. The production line for roasting regeneration of the resin waste sand has significance in social and economical benefits.

Description

Line is produced in the roasting regeneration of resin antiquated sand

Technical field

The utility model relates to the treatment facility of casting with precoated sand, and line is produced in specifically a kind of resin antiquated sand roasting regeneration.

Background technology

At present, Foundry Works uses precoated sand more and more.Precoated sand is a kind of sand grain surface promptly is covered with one deck hard resin film before moulding molding sand or a core sand.Can't direct reuse after precoated sand uses, need could utilize after the regeneration.Lack the precoated sand reclaim equiment in the prior art, antiquated sand is all lost, and not only causes environmental pollution, and the production cost of Foundry Works is improved.

Summary of the invention

The utility model provides a kind of resin antiquated sand roasting regeneration to produce line at the problems referred to above, and this production line can make the resin antiquated sand obtain reusing, and reduces environmental pollution, reduces the casting cost.

According to the technical solution of the utility model: line is produced in a kind of resin antiquated sand roasting regeneration, comprise pretreatment system, thermal reclamation device, dust pelletizing system and electric-control system, described electric-control system is electrically connected with pretreatment system, described thermal reclamation device and described dust pelletizing system respectively; Described pretreatment system comprises crusberscreen, first elevator, magnetic separator and the middle sand hopper that links to each other successively; Described thermal reclamation device comprises successively the screw(-type) feeder that links to each other, roaster, cooling bed, second elevator and regeneration sand hopper, described screw(-type) feeder with described in the middle of sand hopper link to each other; Described dust pelletizing system comprises expansion chamber, deduster and blower fan, by pipeline respectively with described crusberscreen, described roaster and described cooling bed linking to each other.

Described first elevator and described second elevator adopt bucket elevator.

Be provided with preheater before the described roaster, described preheater adopts vertical counterflow configuration, and inside is provided with buffer board.

Described roaster adopts mode of heating on the ebullated bed bed, comprises body of heater, combustion system and blower system.

Be provided with heat room after the described roaster, the reclaimed sand of process high-temperature roasting carries out two hours insulation in described heat room.

Described cooling bed employing boiling type is cooling bed.

Technique effect of the present utility model is: the utility model can make the resin antiquated sand be effectively addressed, making it to become can reusable reclaimed sand, has realized turning waste into wealth, and has saved casting cost, solve the environmental pollution that the antiquated sand discharging causes, had certain social and economic benefits.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.

Among Fig. 1, Fig. 2, comprise crusberscreen 1, first elevator 2, magnetic separator 3, middle sand hopper 4, screw(-type) feeder 5, roaster 6, cooling bed 7, second elevator 8, regeneration sand hopper 9, dust pelletizing system 10, electric cabinet 11, cooling pond 12 etc.

As shown in Figure 1 and Figure 2, the utility model is that line is produced in a kind of resin antiquated sand roasting regeneration, comprise pretreatment system, thermal reclamation device, dust pelletizing system 10 and electric-control system, electric-control system is electrically connected with pretreatment system, thermal reclamation device and dust pelletizing system 10 respectively, and pretreatment system, thermal reclamation device and dust pelletizing system 10 are established 1 electric cabinet 11 altogether.

Pretreatment system comprises crusberscreen 1, first elevator 2, magnetic separator 3 and the middle sand hopper 4 that links to each other successively.Old sand is after fragmentation, screening, magnetic separation, and sand hopper 4 is temporary stand-by in the middle of rising to.

The thermal reclamation device comprises screw(-type) feeder 5, roaster 6, cooling bed 7, second elevator 8 and the regeneration sand hopper 9 that links to each other successively.Screw(-type) feeder 5 links to each other with middle sand hopper 4.First elevator 2 and second elevator 8 adopt bucket elevator.

Also be provided with preheater before the roaster 6.Preheater adopts vertical counterflow configuration, and inside is provided with buffer board.Sand grains enters from inlet, falls by deadweight, and hot gas makes sand grains obtain preheating from rising down.Screw(-type) feeder 5 makes old sand evenly enter preheater.

Roaster 6 adopts mode of heating on the ebullated bed bed, comprises body of heater, combustion system and blower system.4 sides and the end face of body of heater are built into refractory material, and the bottom surface is an ebullated bed.Combustion system is different and different with fuel type, when adopting diesel oil, is made up of oil pump, control valve, burner and combustion fan etc.When adopting heating gas, form by gas generator, burner and combustion fan etc.Sand grains evenly enters in the stove from preheater, and the flame that burner sends directly contacts with the old sand of boiling, and sand grains is heated to 700 ℃-800 ℃, makes the resin molding burning-off on surface or burn to lose cohesion.Sand grains after roasting enters cooling bed 7 from an end.

Blower system is made up of high pressure positive blower, air preheater and pipeline etc.Air flows in the pipe of preheater, and hot flue gas flows outside pipe from bottom to top, exchanges by tube wall.Hot-air enters the cavity of ebullated bed below from the side of roaster 6, enters the firing chamber by the blast cap on the bed board again.

Be provided with heat room after the roaster 6, the reclaimed sand of process high-temperature roasting carries out two hours insulation in heat room.

Cooling bed 7 adopt boiling type cooling bed.Cooling bed 7 inside are provided with cooling water pipe, link to each other with the cooling pond, can improve cooling effect.1 high pressure positive blower of cooling bed autogamy.Sand grains seethes with excitement under the effect of air blast, obtains cooling and dedust simultaneously, and carries out magnetic separation and handle.

Dust pelletizing system 10 comprises expansion chamber, deduster and blower fan, links to each other with crusberscreen 1, roaster 6 and cooling bed 7 respectively by pipeline, removes flue gas and dust that they are discharged.

Operation principle of the present utility model is as follows: the resin antiquated sand becomes granular sand grains through broken, screening earlier, pass through preheating, heat radiation again, roasting under 700 ℃-800 ℃ high temperature then, the cement film on the burning-off sand grains makes the cement film lose adhesion, and make little sand group become single sand grains, carry out ash disposal simultaneously and handle, carry out insulation in two hours again and handle, cool off at last, dedusting once more, and carry out magnetic separation and handle, enter the finished product sand storage.Because in high-temperature calcination process, sand grains fully contacts with thermal-flame, and two hours insulation after going out roaster, therefore, the reclaimed sand of being produced, its expansion rate and gas forming amount all are lower than fresh sand.

Production procedure of the present utility model is as follows: conveying → disintegrating machine → screening → magnetic separator → elevator → middle sand hopper → feed → roaster roasting → cooling and dedusting → elevator → regeneration sand hopper.

The utlity model has following advantage: 1, the efficient height, energy-conservation, simple to operate, burn the sand that and do not have resin; 2, thermal expansion efficient is low: the later sand expansion rate of regenerating is about 0.5%, be adapted to the low precoated sand of getting angry of production high strength, can reduce " internal stress " of foundry goods, prevent casting deformation, improve the complex art index of foundry goods, improve the service life and the accuracy to size of mould simultaneously; 3, burning the roughing sand surface alkalinty oxide and the organic matter that through roaster reduces, thereby the resin sand performance of producing improves, and gas forming amount significantly reduces, and to get angry be 3.5-4.8ml/g to roughing sand self after testing, is about 0.5ml/g through the roughing sand gas forming amount after the regeneration; 4, improve adhesive strength: the sand that roaster produced, its titanium dioxide silica key increased activity, thereby the adhesive strength between raising sand and the resin; 5, reclaimed sand is with low cost: through roaster reclaimed sand, and per ton needs coal consumption 68kg, and also reclaimed sand has a large amount of iron filings byproducts when reclaiming.

This production line is widely used in the old sand of cold core, hot core, shell core and resin sand composite core technology and handles, and making it to become can reusable reclaimed sand.Reclaimed sand after high-temperature roasting can make precision, surface quality and the casting yield of foundry goods significantly promote, and realize turning waste into wealth, and has saved casting cost, and the antiquated sand that has solved enterprise discharges the environmental pollution that causes, and has certain social and economic benefits.

Claims (6)

1. line is produced in a resin antiquated sand roasting regeneration, it is characterized in that: comprise pretreatment system, thermal reclamation device, dust pelletizing system (10) and electric-control system, described electric-control system is electrically connected with pretreatment system, described thermal reclamation device and described dust pelletizing system (10) respectively; Described pretreatment system comprises crusberscreen (1), first elevator (2), magnetic separator (3) and the middle sand hopper (4) that links to each other successively; Described thermal reclamation device comprises screw(-type) feeder (5), roaster (6), cooling bed (7), second elevator (8) and the regeneration sand hopper (9) that links to each other successively, and described screw(-type) feeder (5) links to each other with described middle sand hopper (4); Described dust pelletizing system (10) comprises expansion chamber, deduster and blower fan, links to each other with described crusberscreen (1), described roaster (6) and described cooling bed (7) respectively by pipeline.
2. produce line according to the roasting regeneration of the described resin antiquated sand of claim 1, it is characterized in that: described first elevator (2) and described second elevator (8) adopt bucket elevator.
3. produce line according to the roasting regeneration of the described resin antiquated sand of claim 1, it is characterized in that: described roaster (6) is provided with preheater before, and described preheater adopts vertical counterflow configuration, and inside is provided with buffer board.
4. produce line according to the roasting regeneration of the described resin antiquated sand of claim 1, it is characterized in that: described roaster (6) adopts mode of heating on the ebullated bed bed, comprises body of heater, combustion system and blower system.
5. produce line according to the roasting regeneration of the described resin antiquated sand of claim 1, it is characterized in that: described roaster (6) is provided with heat room afterwards, and the reclaimed sand of process high-temperature roasting carries out two hours insulation in described heat room.
6. produce line according to the roasting regeneration of the described resin antiquated sand of claim 1, it is characterized in that: described cooling bed (7) adopt boiling type cooling bed.
CN2011200851388U 2011-03-28 2011-03-28 Production line for roasting regeneration of resin waste sand CN201969827U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200851388U CN201969827U (en) 2011-03-28 2011-03-28 Production line for roasting regeneration of resin waste sand

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CN201969827U true CN201969827U (en) 2011-09-14

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688982A (en) * 2012-06-12 2012-09-26 西峡县众德汽车部件有限公司 Process for roasting waste sand into precoated sand material
CN102873270A (en) * 2012-09-29 2013-01-16 温州市康霸洁具有限公司 Production device of resin gel core sand
CN102873269A (en) * 2012-09-29 2013-01-16 温州市康霸洁具有限公司 Resin gel waste core sand reproduction line
CN103317084A (en) * 2013-06-28 2013-09-25 常州午阳柴油机水箱制造有限公司 Waste sand recycling equipment and use method thereof
CN106077448A (en) * 2016-08-10 2016-11-09 禹州市昆仑模具有限公司 A kind of precoated sand renovation process
CN107262668A (en) * 2017-07-11 2017-10-20 马鞍山市兴隆铸造有限公司 A kind of furan resin-sand regenerating used method
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
CN110756727A (en) * 2019-11-15 2020-02-07 贵阳白云合金熔铸厂 Tectorial membrane molding sand regeneration process and system
CN110814276A (en) * 2019-12-06 2020-02-21 马鞍山市绿科环保科技有限公司 Method for cleaning impurities in casting waste sand
CN110935842A (en) * 2019-10-18 2020-03-31 贵阳白云合金熔铸厂 Precoated sand hot rubbing regeneration method and system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688982A (en) * 2012-06-12 2012-09-26 西峡县众德汽车部件有限公司 Process for roasting waste sand into precoated sand material
CN102873269A (en) * 2012-09-29 2013-01-16 温州市康霸洁具有限公司 Resin gel waste core sand reproduction line
CN102873270A (en) * 2012-09-29 2013-01-16 温州市康霸洁具有限公司 Production device of resin gel core sand
CN103317084A (en) * 2013-06-28 2013-09-25 常州午阳柴油机水箱制造有限公司 Waste sand recycling equipment and use method thereof
CN103317084B (en) * 2013-06-28 2015-08-26 常州市维益科技有限公司 A kind of method using antiquated sand recycling equipment to manufacture precoated sand
CN106077448A (en) * 2016-08-10 2016-11-09 禹州市昆仑模具有限公司 A kind of precoated sand renovation process
CN107262668B (en) * 2017-07-11 2019-03-01 马鞍山市兴隆铸造有限公司 A kind of furan resin-sand regenerating used method
CN107262668A (en) * 2017-07-11 2017-10-20 马鞍山市兴隆铸造有限公司 A kind of furan resin-sand regenerating used method
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
CN110935842A (en) * 2019-10-18 2020-03-31 贵阳白云合金熔铸厂 Precoated sand hot rubbing regeneration method and system
CN110756727A (en) * 2019-11-15 2020-02-07 贵阳白云合金熔铸厂 Tectorial membrane molding sand regeneration process and system
CN110814276A (en) * 2019-12-06 2020-02-21 马鞍山市绿科环保科技有限公司 Method for cleaning impurities in casting waste sand

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110914

Termination date: 20120328

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