CN105170893A - Casting coating prepared from casting solid waste and fly ash and preparation method of casting coating - Google Patents
Casting coating prepared from casting solid waste and fly ash and preparation method of casting coating Download PDFInfo
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- CN105170893A CN105170893A CN201510633343.6A CN201510633343A CN105170893A CN 105170893 A CN105170893 A CN 105170893A CN 201510633343 A CN201510633343 A CN 201510633343A CN 105170893 A CN105170893 A CN 105170893A
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Abstract
The invention relates to a casting coating prepared from casting solid waste and fly ash and a preparation method of the casting coating. The casting coating prepared from casting solid waste and fly ash comprises, by mass, 10-30% of casting resin sand regeneration dust, 10-30% of fly ash and 0-40% of other powder which is used as refractory aggregate, 2.5-4.5% of a suspending agent, 0.8-1.5% of a binding agent, 1.5-3.0% of other auxiliaries and 30-40% of carrier liquid. Due to the technical scheme, the casting coating has the beneficial effects that effective components and the small particle size characteristic of casting resin sand regeneration dust and fly ash are fully used for preparing the casting coating, the performance of the prepared coating is good, the effect required by the casting coating can be achieved, the production cost is reduced, dust emission is reduced, resources are saved, and the environment is protected; and due to the fact that the prepared casting coating is low in production cost and excellent in performance, comprehensive utilization or cyclic utilization of casting dust is achieved. Thus, the casting coating has very high market competitiveness capacity and application and popularization value.
Description
Technical field
The invention belongs to casting technology field, be specifically related to a kind ofly cast solid waste and the standby cast paint of coal ash for manufacturing and preparation method thereof.
Background technology
At present, casting industry produce in casting solid waste---solid waste discharged after foundry resin sand regeneration power dust and thermal power plant coal dust firing---flyash, be stack to abandon substantially, do not obtain Appropriate application.The accumulation of foundry resin sand regeneration power dust and flyash not only takies a large amount of soil, but also can to environment, waste resource.But along with environmental pressure is increasing, how effectively with regard to, disposal and utilization foundry resin sand regeneration power dust and flyash have become the problem of social very attention rate.
Cast paint refractory powder used generally has high alumina fine powder, silica flour, talcum powder, mica powder, corundum, mullite powder, magnesia powder, olive stone flour etc.And the main component of these refractory powders is SiO
2, Al
2o
3, CaO, MgO, ZrO
2, Fe
2o
3deng.Know from the chemical composition analysis of foundry resin sand regeneration power dust and flyash itself, its main component comprises SiO
2, Al
2o
3, Fe
2o
3, CaO etc.Foundry resin sand regeneration power dust conforms to substantially with the composition of fine coal ash composition with cast paint powder, substantially meet the electrochemical conditions of the refractory aggregate of cast paint, this makes to utilize foundry resin sand regeneration power dust and flyash research to prepare foundry facing becomes possibility.Foundry resin sand regeneration power dust and flyash are added in cast paint as refractory aggregate, on the one hand, decreases the discharge of dust, reduce or eliminate its pollution on the environment; On the other hand, both saved resource, achieved again the comprehensive utilization of resource, and also in process dust, provided a new approach, there is important environment protection significance and practical significance.
Summary of the invention
For the environmental pressure that casting solid waste and flyash are brought, the invention provides a kind of by casting solid waste and the standby cast paint of coal ash for manufacturing and preparation method thereof, solid waste---foundry resin sand regeneration power dust and flyash are as refractory aggregate to utilize casting, be equipped with suitable suspending agent, binding agent, carrier fluid and other auxiliary agents, prepare the cast paint of function admirable, achieve the comprehensive utilization of dust resource, new application is opened for effectively utilizing dust, solve the problem of environmental pollution produced because dust is difficult to process simultaneously.
In order to realize above-mentioned effect, the invention provides following technical scheme:
A kind of by casting solid waste and the standby cast paint of coal ash for manufacturing, comprise the raw material of following quality proportioning: other powder of 10-30% foundry resin sand regeneration power dust, 10-30% flyash and 0-40% is as refractory aggregate, suspending agent 2.5-4.5%, binding agent 0.8-1.5%, other auxiliary agents 1.5-3.0%, and carrier fluid 30-40%;
The granularity of described foundry resin sand regeneration power dust and flyash is less than 100 orders; Described foundry resin sand regeneration power dust and flyash are compared with other refractory aggregate, impurity component is more, have impact on its refractoriness to a certain extent, all with its refractory aggregate as cast paint, the coating produced may be used for various non-ferrous alloy part and middle-size and small-size ironcasting; Other powders described comprise zirconium English powder, schmigel, high alumina fine powder, graphite powder, mullite powder, one or more in magnesia powder, Brown Alundum;
Described suspending agent comprises water based paint suspending agent and Suspension Agent of Alcohol Based Coatings, and the suspending agent of water based paint is the mixture of at least one in sodium bentonite, Rectorite, attapulgite, sodium carboxymethylcellulose, sodium alginate, polyacrylamide; Suspension Agent of Alcohol Based Coatings is the mixture of at least one in ATT50, lithium bentonite, attapulgite.
Other auxiliary agents described comprise one or more in iron oxide red, talcum powder, calcium oxide, zinc oxide;
When described cast paint carrier fluid used is water, binding agent is more than one the mixture in polyvinyl alcohol, water soluble phenol resin, white glue with vinyl, waterglass, phosphate; When described carrier fluid is alcohol, binding agent is more than one the mixture in polyvinyl butyral resin, alcohol dissolubility phenolic resins, rosin, silester.
By a preparation method for casting solid waste and the standby cast paint of coal ash for manufacturing, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation mixed with suitable quantity of water by suspending agent, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim appropriate carrier fluid in bucket, slowly add binding agent under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration;
Step 3, adds appropriate carrier fluid and the suspending agent handled well, binding agent in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep stirring, speed is adjusted to 500r/min, adds load weighted foundry resin sand regeneration power dust, flyash and other refractory aggregate in Scattered Kettle successively, and after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
Wherein, other auxiliary agents described in step 3 comprise one or more in iron oxide red, talcum powder, calcium oxide, zinc oxide.
The beneficial effect of technical scheme of the present invention is: the present invention takes full advantage of foundry resin sand regeneration power dust and flyash volume active ingredient and thinner granularity feature, prepare cast paint, prepared coating property is excellent, the effect of cast paint requirement can be reached, the utilization not being only foundry resin sand regeneration power dust and flyash proposes new direction, the production cost of reduction, and the discharge decreasing dust, save resource, protect environment; Because the cast paint production cost of preparation is low, excellent performance, and achieve the comprehensive utilization of Foundry or recycle.Therefore there is the very strong market competitiveness and application value.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment one
By foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, this coating constituent weight proportion is as follows: foundry resin sand regeneration power dust 30%, flyash 30%, ATT502.3%, attapulgite 1.2%, polyvinyl butyral resin 0.15%, rosin 0.75%, other auxiliary agent 1.6%, methyl alcohol or ethanol 34%.
By a preparation method for foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation ATT50, attapulgite are mixed with suitable quantity of water, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim proper amount of methanol or ethanol to be placed in bucket, slowly add polyvinyl butyral resin, rosin under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration (now with the current);
Step 3, adds proper amount of methanol or ethanol and the ATT50 handled well, attapulgite, polyvinyl butyral resin, rosin in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep mixing speed to be adjusted to 500r/min, in Scattered Kettle, add load weighted foundry resin sand regeneration power dust, flyash successively, after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
The coating that this embodiment obtains is applicable to various non-ferrous alloy and middle-size and small-size ironcasting.
Embodiment two
Foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, this coating constituent weight proportion is as follows: foundry resin sand regeneration power dust 25%, flyash 18%, zirconium English powder 18%, ATT501.8%, lithium bentonite 1.25%, attapulgite 1.25%, polyvinyl butyral resin 0.2%, rosin 1.2%, other auxiliary agent 2.3%, methyl alcohol or ethanol 31%.
By a preparation method for foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation ATT50, lithium bentonite, attapulgite are mixed with suitable quantity of water, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim proper amount of methanol or ethanol to be placed in bucket, slowly add polyvinyl butyral resin, rosin under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration (now with the current);
Step 3, adds proper amount of methanol or ethanol and the ATT50 handled well, lithium bentonite, attapulgite, polyvinyl butyral resin, rosin in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep mixing speed to be adjusted to 500r/min, add load weighted foundry resin sand regeneration power dust, flyash, zirconium English powder in Scattered Kettle successively, after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
The coating that this embodiment obtains is applicable to various non-ferrous alloy and big-and-middle-sized ironcasting.
Embodiment three:
Foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, this coating constituent weight proportion is as follows: foundry resin sand regeneration power dust 20%, flyash 10%, zirconium English powder 20%; Graphite 10%; Lithium bentonite 1.2%, attapulgite 2.5%, polyvinyl butyral resin 0.15%, rosin 0.15%, alcohol dissolubility phenolic resins 1.5%, other auxiliary agent 1.5%, methyl alcohol or ethanol 33%.
By a preparation method for foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation lithium bentonite, attapulgite are mixed with suitable quantity of water, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim proper amount of methanol or ethanol to be placed in bucket, slowly add polyvinyl butyral resin, rosin, alcohol dissolubility phenolic resins under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration (now with the current);
Step 3, adds proper amount of methanol or ethanol and the lithium bentonite handled well, attapulgite, polyvinyl butyral resin, rosin, alcohol dissolubility phenolic resins in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep mixing speed to be adjusted to 500r/min, add load weighted foundry resin sand regeneration power dust, flyash, zirconium English powder, graphite in Scattered Kettle successively, after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
The coating that this embodiment obtains is applicable to various non-ferrous alloy and big-and-middle-sized ironcasting.
Embodiment four:
Foundry resin sand regeneration power dust and the standby water base cast paint of coal ash for manufacturing, this coating constituent weight proportion is as follows: foundry resin sand regeneration power dust 25%, flyash 25%, graphite 10%, sodium bentonite 1.0%, attapulgite 2.0%, sodium carboxymethylcellulose 0.2%, polyvinyl alcohol 0.5%, water soluble phenol resin 0.3%, other auxiliary agents 2.5%, water 33.5%.
By a preparation method for foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation sodium bentonite, attapulgite, sodium carboxymethylcellulose are mixed with suitable quantity of water, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim suitable quantity of water to be placed in bucket, slowly add polyvinyl alcohol, water soluble phenol resin under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration (now with the current);
Step 3, adds suitable quantity of water and the sodium bentonite handled well, attapulgite, sodium carboxymethylcellulose, polyvinyl alcohol, water soluble phenol resin in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep mixing speed to be adjusted to 500r/min, in Scattered Kettle, add load weighted foundry resin sand regeneration power dust, flyash, graphite successively, after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
The coating that this embodiment obtains is applicable to various non-ferrous alloy and middle-size and small-size ironcasting.
Embodiment five:
Foundry resin sand regeneration power dust and the standby water base cast paint of coal ash for manufacturing, this coating constituent weight proportion is as follows: foundry resin sand regeneration power dust 20%, flyash 10%, zirconium English powder 20%, graphite 10%, sodium bentonite 0.6%, attapulgite 2.7%, sodium carboxymethylcellulose 0.2%, polyvinyl alcohol 0.5%, water soluble phenol resin 0.3%, other auxiliary agents 2.7%, water 33%.
By a preparation method for foundry resin sand regeneration power dust and the standby alcohol-base foundry coating of coal ash for manufacturing, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation sodium bentonite, attapulgite, sodium carboxymethylcellulose are mixed with suitable quantity of water, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim suitable quantity of water to be placed in bucket, slowly add polyvinyl alcohol, water soluble phenol resin under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration (now with the current);
Step 3, adds suitable quantity of water and the sodium bentonite handled well, attapulgite, sodium carboxymethylcellulose, polyvinyl alcohol, water soluble phenol resin in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep mixing speed to be adjusted to 500r/min, add load weighted foundry resin sand regeneration power dust, flyash, zirconium English powder, graphite in Scattered Kettle successively, after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
The coating that this embodiment obtains is applicable to various non-ferrous alloy and big-and-middle-sized ironcasting.
The above foundry resin sand regeneration power dust and flyash are compared with other refractory aggregate, impurity component is more, have impact on its refractoriness to a certain extent, all with its refractory aggregate as cast paint, the coating produced may be used for various non-ferrous alloy part and middle-size and small-size ironcasting; If add some other powders when preparing cast paint as refractory aggregate, then obtained cast paint may be used for requiring the aspects such as higher big-and-middle-sized ironcasting to refractoriness.
The main technological properties index of the cast paint that the present invention utilizes foundry resin sand regeneration power dust and flyash to prepare can see table 1
The present invention utilizes resin sand to regenerate dust and cast paint has been prepared in flyash research; not only achieve the comprehensive utilization of dust resource; efficiently solve the environmental pressure that it brings; new application is opened for effectively utilizing dust; achieve Green foundry simultaneously, economize on resources, significant to preserving the ecological environment.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. one kind by casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, comprise the raw material of following quality proportioning: other powder of 10-30% foundry resin sand regeneration power dust, 10-30% flyash and 0-40% is as refractory aggregate, suspending agent 2.5-4.5%, binding agent 0.8-1.5%, other auxiliary agents 1.5-3.0%, and carrier fluid 30-40%.
2. according to claim 1 a kind of by casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, the granularity of described foundry resin sand regeneration power dust and flyash is less than 100 orders.
3. according to claim 1 a kind of by casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, other powders described comprise zirconium English powder, schmigel, high alumina fine powder, graphite powder, mullite powder, one or more in magnesia powder, Brown Alundum.
4. according to claim 1 a kind of by casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, described suspending agent comprises water based paint suspending agent and Suspension Agent of Alcohol Based Coatings, and the suspending agent of water based paint is the mixture of at least one in sodium bentonite, Rectorite, attapulgite, sodium carboxymethylcellulose, sodium alginate, polyacrylamide; Suspension Agent of Alcohol Based Coatings is the mixture of at least one in ATT50, lithium bentonite, attapulgite.
5. according to claim 1 a kind of by casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, other auxiliary agents described comprise one or more in iron oxide red, talcum powder, calcium oxide, zinc oxide.
6. according to claim 1 a kind of by casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, when described cast paint carrier fluid used is water, binding agent is more than one the mixture in polyvinyl alcohol, water soluble phenol resin, white glue with vinyl, waterglass, phosphate; When described carrier fluid is alcohol, binding agent is more than one the mixture in polyvinyl butyral resin, alcohol dissolubility phenolic resins, rosin, silester.
7., by a preparation method for casting solid waste and the standby cast paint of coal ash for manufacturing, it is characterized in that, comprise the following steps:
Step one, the pretreatment of suspending agent: under agitation mixed with suitable quantity of water by suspending agent, carries out initiation process, is uniformly dispersed completely, leave standstill 24 hours, obtained pretreatment suspension slurry;
Step 2, the pretreatment of binding agent: claim appropriate carrier fluid in bucket, slowly add binding agent under stirring condition, be then stirred well to it and dissolve completely, and with screen filtration;
Step 3, adds appropriate carrier fluid and the suspending agent handled well, binding agent in Scattered Kettle, opens and stirs, then add other auxiliary agents, stirred for several minute;
Step 4, keep stirring, speed is adjusted to 500r/min, adds load weighted foundry resin sand regeneration power dust, flyash and other refractory aggregate in Scattered Kettle successively, and after reinforced, adjusting rotary speed is 1200r/min, disperses 20 minutes;
Step 5, adjusts Baume degrees with carrier fluid, is controlled by Baume degrees in suitable scope, discharging.
8. a kind of preparation method by casting solid waste and the standby cast paint of coal ash for manufacturing according to claim 7, it is characterized in that, other auxiliary agents wherein described in step 3 comprise one or more in iron oxide red, talcum powder, calcium oxide, zinc oxide.
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| CN105964897A (en) * | 2016-07-12 | 2016-09-28 | 安徽龙氏机械制造有限公司 | Coating used for resin sand mold casting |
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| CN107214293A (en) * | 2017-04-26 | 2017-09-29 | 宁夏共享模具有限公司 | A kind of method for preparing cast paint with discarded haydite resin sand |
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| CN107855461A (en) * | 2017-11-14 | 2018-03-30 | 安徽省神洲建材科技有限公司 | A kind of fire resistance coal ash casting paint |
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| CN109020565A (en) * | 2018-07-28 | 2018-12-18 | 宁夏共享化工有限公司 | A method of cast paint refractory aggregate is prepared by industrial dust |
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| CN105964897A (en) * | 2016-07-12 | 2016-09-28 | 安徽龙氏机械制造有限公司 | Coating used for resin sand mold casting |
| CN106583654B (en) * | 2016-11-30 | 2019-09-24 | 北京天宜上佳高新材料股份有限公司 | A kind of aluminium alloy brake disc molten metal and the technique by its Cast brake disc |
| CN106583654A (en) * | 2016-11-30 | 2017-04-26 | 北京天宜上佳新材料股份有限公司 | Aluminum alloy brake disc molten metal and technology for casting brake disc through aluminum alloy brake disc molten metal |
| CN107214293A (en) * | 2017-04-26 | 2017-09-29 | 宁夏共享模具有限公司 | A kind of method for preparing cast paint with discarded haydite resin sand |
| CN107523111A (en) * | 2017-08-25 | 2017-12-29 | 福建聚能机械制造有限公司 | White die coating swabbing of one kind foaming and preparation method thereof |
| CN107855461A (en) * | 2017-11-14 | 2018-03-30 | 安徽省神洲建材科技有限公司 | A kind of fire resistance coal ash casting paint |
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| CN108911766A (en) * | 2018-07-28 | 2018-11-30 | 宁夏共享化工有限公司 | A kind of cast paint refractory aggregate intermediate |
| CN109020565A (en) * | 2018-07-28 | 2018-12-18 | 宁夏共享化工有限公司 | A method of cast paint refractory aggregate is prepared by industrial dust |
| CN109261893A (en) * | 2018-12-08 | 2019-01-25 | 孔强用 | A kind of fused alumina zirconia alcohol-base foundry coating and preparation method thereof |
| CN111635689A (en) * | 2020-06-24 | 2020-09-08 | 武汉钢铁有限公司 | Heat-insulating coating for tundish cover metal structure, preparation method and application |
| CN111992659A (en) * | 2020-08-25 | 2020-11-27 | 含山县能华铸造有限公司 | Method for improving surface quality of alloy steel casting |
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Application publication date: 20151223 |