CN103145328A - Method for comprehensively utilizing basalt blast furnace slag in preparation of rock wool board - Google Patents
Method for comprehensively utilizing basalt blast furnace slag in preparation of rock wool board Download PDFInfo
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- CN103145328A CN103145328A CN2013100793808A CN201310079380A CN103145328A CN 103145328 A CN103145328 A CN 103145328A CN 2013100793808 A CN2013100793808 A CN 2013100793808A CN 201310079380 A CN201310079380 A CN 201310079380A CN 103145328 A CN103145328 A CN 103145328A
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- rock wool
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a method for comprehensively utilizing basalt blast furnace slag in preparation of a rock wool board. According to the method, the blast furnace slag is utilized in the preparation of the rock wool, thus the purpose of turning the wastes into wealth is realized. The method is that the technology that the dust is removed firstly, the afterheat of the smoke of a cupola is recovered, and finally the preheating and air supply of the cupola, the curing of rock wool, and the shrink packaging of the rock wool board are carried out, thus the afterheat of the cupola is recycled to the maximum, and as a result, the pollution to the environment is reduced; the gas which is free of dust but contains a volume of carbon monoxide flows into a combustion chamber, and the combustion temperature is controlled to 750 to 950 DEG C, so that a heat exchanger is free of dust deposition, the stability in heat transfer is ensured, the efficiency is high, the workload in maintenance is low, manual cleaning is saved, the production time is prolonged, the output is increased, and the cost is decreased; the hot air is at temperature of 350 to 700 DEG C, so that the enhancing and energy-saving melting effects are remarkable; the dust-free clean smoke, discharged from the heat exchanger, flows into a hot-air distributor to heat each curing chamber of a curing oven, so as to heat and cure the rock wool board; and the temperature is always controlled to 170 to 280 DEG C, so that high curing strength is realized, and the rock wool is high in quality.
Description
Technical field
The present invention relates to a kind of basalt blast furnace slag and make the method for rock cotton board comprehensive utilization, belong to the rock wool production field.
Background technology
At present, it is that the furnace gas incinerator is placed on cupola furnace outlet port place that known rock cotton board is made cupola furnace, and the waste gas of cupola furnace directly enters incinerator, and the flue gas after burning enters hot air heat exchanger, as shown in Figure 1.Produced thus following defective:
1. dust enters interchanger with flue gas, and deposition sticks on heat transfer tube, and the heat transfer rate of interchanger is reduced gradually, until can not heat exchange, heat exchange is unstable, and calorific loss is large.Usually take the labor cleaning, work situation is abominable, wastes time and energy, and reduces throughput.
2. the flue-gas temperature after heat exchange is 350 ℃～450 ℃, because containing dust, can not directly enter curing oven, otherwise dust adhesion rock wool silk is surperficial, reduces the binding agent effect, destroys rock cotton board intensity, reduces the rock cotton board quality.
3. interchanger is discharged the flue gas of 350 ℃～450 ℃, need first cool to below 150 ℃ and just can advance sack cleaner, has lost flue gas heat.The spent air temperture that sack cleaner is discharged still has 120 ℃ of left and right, and heat is not utilized.
Known rock wool curing process in addition, the source of heat is coal gas, coke or Sweet natural gas, the curing oven fume afterheat enters atmosphere, waste energy, contaminate environment.
Summary of the invention
For the deficiency that prior art exists, technical problem to be solved by this invention is to provide a kind of basalt blast furnace slag to make the method for rock cotton board comprehensive utilization, save energy, reduce production costs, reduce labour intensity and environmental pollution, Simultaneous Stabilization the quality of product.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is, a kind of basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, and it comprises the following steps:
(1) add coke to form bed coke in cupola furnace, and air-supply is lighted;
(2) furnace charge basalt and blast furnace slag are added on bed coke in batches, furnace charge is melted in heating;
The flue gas that contains carbon monoxide and dust of (3) cupola furnace being discharged is sent into dust removal installation, sends into incinerator after dedusting, sends cupola furnace internally heated oven material back to through first-class heat exchanger again after burning intensification;
(4) furnace charge after the fusing falls into the centrifugal cotton machine that blows and forms the rock wool silk from cupola furnace, at rock wool silk surface spraying binding agent, and sends into the collection cotton and is with deposition;
(5) the rock wool silk of deposition is sent into the pendulum cotton machine is folding to be put and pressurize, sent into curing oven after pressurization and be heating and curing, form rock cotton board.
Optimize, above-mentioned basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, and its rock cotton board that also comprises soon moulding of step (6) is sent into cutting machine cutting, sends into wrapping machine after cutting, carries out the shrink-packaging with plastic film.
Optimize, above-mentioned basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, dust removal installation in its step (3) comprises tornado dust collector, sack cleaner and waste gas induced draft fan, the flue gas that cupola furnace is discharged enters tornado dust collector and carries out primary dust removing under the effect of waste gas induced draft fan, then enter sack cleaner and light burning through entering incinerator after two-stage dust removal.
Optimize, above-mentioned basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, also passes into air and Sweet natural gas on its incinerator.
Optimize, above-mentioned basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, and in its first-class heat exchanger, the part hot blast enters the hot-air distributor that is connected with first-class heat exchanger; Described hot-air distributor is sent into chimney with a part of waste gas by the waste gas induced draft fan and is entered atmosphere, and another part hot blast is admitted to shrink-packaging's machine and curing oven heats, and the waste gas that curing oven is discharged enters hot-air distributor by recirculation blower.
Optimize, above-mentioned basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, and in its step (2), furnace charge can also include rhombspar.
Optimize, above-mentioned basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, adds for the coke charge that replenishes the bed coke loss between every batch of furnace charge in its step (2).
The invention has the beneficial effects as follows: utilized blast furnace slag in rock wool is made, turned waste into wealth; Take to reclaim after first dedusting that the cupola furnace fume afterheat carries out the cupola furnace reheated blast, rock wool is solidified and rock cotton board shrink-packaging technique, realized that waste heat of cupola furnace recycles to greatest extent, reduce the pollution to environment; The flue gas that contains a large amount of CO (carbon monoxide converter) gas that does not contain dust enters incinerator, and temperature of combustion is controlled at 750 ℃～950 ℃, and interchanger is without laying dust, and heat exchange is stable, efficient is high, and maintenance workload is few, does not need the labor cleaning, extend the production time, improve production capacity, reduce costs; 350 ℃～700 ℃ hot blasts are strengthened, energy-conservation Smelting Effect is remarkable; 350 ℃～450 ℃ from the interchanger discharge do not have the cleaning flue gases of dust to enter hot-air distributor, each curing room of stove that is heating and curing, and the rock cotton board that is heating and curing is controlled temperature generally at 170 ℃～280 ℃, and solidification intensity is high, and the rock cotton board quality is good; Comprehensive benefit with significant energy-saving and emission-reduction, refuse reclamation, joint Zhi Zengxiao.
Description of drawings
Fig. 1 is that cupola furnace flue gas of the prior art moves towards schema;
Fig. 2 is that cupola furnace flue gas of the present invention moves towards schema.
Embodiment
Further set forth technical characterstic of the present invention below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 2, the present invention is a kind of method that basalt blast furnace slag is made the rock cotton board comprehensive utilization, comprises the following steps:
(1) add coke to form bed coke in cupola furnace, and air-supply is lighted;
(2) by proportioning, the furnace charges such as basalt, blast furnace slag, rhombspar are added on bed coke more in batches, add coke charge between every batch, to replenish the consume of bed coke, furnace charge is melted in heating;
The flue gas that contains carbon monoxide and dust of (3) cupola furnace being discharged is sent into dust removal installation, sends into incinerator after dedusting, sends cupola furnace internally heated oven material back to through first-class heat exchanger again after burning intensification;
(4) furnace charge after the fusing is that unvenile water falls into the centrifugal cotton machine formation rock wool silk that blows from cupola furnace, at rock wool silk surface spraying binding agent, and sends into the collection cotton and is with deposition;
(5) the rock wool silk of deposition is sent into the pendulum cotton machine is folding to be put and pressurize, sent into curing oven after pressurization and be heating and curing, form rock cotton board;
(6) rock cotton board of moulding is sent into the cutting machine cutting, sent into wrapping machine after cutting, carry out the shrink-packaging with plastic film, form the rock wool product;
Dust removal installation in its step (3) comprises tornado dust collector, sack cleaner and waste gas induced draft fan, the flue gas that cupola furnace is discharged enters tornado dust collector and carries out primary dust removing under the effect of waste gas induced draft fan, then enter sack cleaner and light burning through entering incinerator after two-stage dust removal.Passing into the waste gas combustion air on its incinerator is air and Sweet natural gas, and when passing into Sweet natural gas, natural gas facility also can pass into combustion air.
Exhaust gas and dust (viscosity is large, tiny), carbon monoxide and other objectionable impurities that cupola furnace discharges in the process of fusing, under the effect of induced draft fan, enter tornado dust collector and carry out first step dedusting, enter again sack cleaner and carry out second stage dedusting, it is combustion chambers burn that clean flue gas after dedusting enters incinerator, in incinerator, temperature can reach more than 1000 ℃, general control incinerator smoke evacuation temperature 700 ℃～950 ℃ (interchanger is without laying dust, heat exchange is stable, efficient is high, maintenance workload is few), enter interchanger and air-supply and carry out heat exchange; When in incinerator, spent air temperture is lower than 500 ℃, incinerator adds combustion engine and automatically lights waste gas, when temperature is raised to more than 500 ℃, the burner cease combustion, the waste gas that enters incinerator just can spontaneous combustion, and the flue-gas temperature that enters interchanger from incinerator is controlled at 700 ℃～950 ℃, carries out heat exchange, air-supply is heated to 350 ℃～700 ℃, sends into cupola furnace and strengthens the bed coke burning.Mist heat recovering improves temperature in stove, saves coke.
In its first-class heat exchanger, the part hot blast enters the hot-air distributor that is connected with first-class heat exchanger; Described hot-air distributor is sent into chimney with a part of waste gas by the waste gas induced draft fan and is entered atmosphere, and another part hot blast is admitted to shrink-packaging's machine and curing oven heats, and the waste gas that curing oven is discharged enters hot-air distributor by recirculation blower.
The purpose of doing like this is: 350 ℃～450 ℃ flue gases of discharging from interchanger are through the hot-air distributor a plurality of curing rooms of stove that are heating and curing, carry out the rock cotton board thermofixation, also have simultaneously the waste heat of partly solidified chamber to send into again shrink-packaging's machine, with its waste heat, rock cotton board is carried out plastic film shrink-packaging machine.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement all should belong to protection scope of the present invention.
Claims (7)
1. a basalt blast furnace slag is made the method for rock cotton board comprehensive utilization, and it comprises the following steps:
(1) add coke to form bed coke in cupola furnace, and air-supply is lighted;
(2) furnace charge basalt and blast furnace slag are added on bed coke in batches, furnace charge is melted in heating;
The flue gas that contains carbon monoxide and dust of (3) cupola furnace being discharged is sent into dust removal installation, sends into incinerator after dedusting, sends cupola furnace internally heated oven material back to through first-class heat exchanger again after burning intensification;
(4) furnace charge after the fusing falls into the centrifugal cotton machine that blows and forms the rock wool silk from cupola furnace, at rock wool silk surface spraying binding agent, and sends into the collection cotton and is with deposition;
(5) the rock wool silk of deposition is sent into the pendulum cotton machine is folding to be put and pressurize, sent into curing oven after pressurization and be heating and curing, form rock cotton board.
2. basalt blast furnace slag according to claim 1 is made the method for rock cotton board comprehensive utilization, it is characterized in that: the rock cotton board that also comprises soon moulding of step (6) is sent into the cutting machine cutting, sends into wrapping machine after cutting, carries out the shrink-packaging with plastic film.
3. basalt blast furnace slag according to claim 2 is made the method for rock cotton board comprehensive utilization, it is characterized in that: the dust removal installation in described step (3) comprises tornado dust collector, sack cleaner and waste gas induced draft fan, the flue gas that cupola furnace is discharged enters tornado dust collector and carries out primary dust removing under the effect of waste gas induced draft fan, then enter sack cleaner and light burning through entering incinerator after two-stage dust removal.
4. basalt blast furnace slag according to claim 3 is made the method for rock cotton board comprehensive utilization, it is characterized in that: also pass into air and Sweet natural gas on described incinerator.
5. basalt blast furnace slag according to claim 4 is made the method for rock cotton board comprehensive utilization, it is characterized in that: in described first-class heat exchanger, the part hot blast enters the hot-air distributor that is connected with first-class heat exchanger; Described hot-air distributor is sent into chimney with a part of waste gas by the waste gas induced draft fan and is entered atmosphere, and another part hot blast is admitted to shrink-packaging's machine and curing oven heats, and the waste gas that curing oven is discharged enters hot-air distributor by recirculation blower.
6. basalt blast furnace slag according to claim 4 is made the method for rock cotton board comprehensive utilization, it is characterized in that: in described step (2), furnace charge can also include rhombspar.
7. basalt blast furnace slag according to claim 5 is made the method for rock cotton board comprehensive utilization, it is characterized in that: add for the coke charge that replenishes the bed coke loss between every batch of furnace charge in described step (2).
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536374A (en) * | 2016-01-29 | 2016-05-04 | 青岛青力环保设备有限公司 | Cupola tail gas treatment system |
| CN104445909B (en) * | 2014-10-31 | 2016-10-26 | 湖州吴兴道场城乡建设发展有限公司 | A kind of novel slag wool fiber plate |
| CN106082685A (en) * | 2016-06-14 | 2016-11-09 | 四川帕沃可矿物纤维制品有限公司 | A kind of agricultural rock wool and the manufacture method of agricultural rock wool |
| CN106116133A (en) * | 2016-06-14 | 2016-11-16 | 四川帕沃可矿物纤维制品有限公司 | A kind of rock wool production line of energy-saving high yield |
| CN106746581A (en) * | 2016-11-26 | 2017-05-31 | 保定市华锐方正机械制造有限公司 | A kind of method of rock wool waste material mixture regeneration treatment |
| CN106863827A (en) * | 2017-04-07 | 2017-06-20 | 马鞍山市北大益丰环保科技有限责任公司 | A kind of molten blast furnace slag produces the technique and device of rock wool |
| CN107553751A (en) * | 2017-08-17 | 2018-01-09 | 上海新型建材岩棉大丰有限公司 | A kind of agricultural rock wool automatic processing technology |
| CN110055410A (en) * | 2019-05-06 | 2019-07-26 | 安徽工业大学 | A kind of electric furnace bag-type dust ash resource utilization method |
| CN113072305A (en) * | 2021-04-20 | 2021-07-06 | 洛阳昊海环保科技有限公司 | Method for preparing mineral wool and method for utilizing waste in production process of mineral wool |
| CN115991576A (en) * | 2022-12-07 | 2023-04-21 | 南京玻璃纤维研究设计院有限公司 | Method for recycling rock wool waste residues through electric melting method and cooperatively treating VOCs (volatile organic compounds) in electric furnace |
| CN118517924A (en) * | 2024-07-23 | 2024-08-20 | 大城县洪海保温材料有限公司 | Waste heat recovery system is used in rock wool production |
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| CN1931763A (en) * | 2006-09-30 | 2007-03-21 | 攀枝花环业冶金渣开发有限责任公司 | Slag wool of high titanium type blast furnace slag |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445909B (en) * | 2014-10-31 | 2016-10-26 | 湖州吴兴道场城乡建设发展有限公司 | A kind of novel slag wool fiber plate |
| CN105536374A (en) * | 2016-01-29 | 2016-05-04 | 青岛青力环保设备有限公司 | Cupola tail gas treatment system |
| CN106116133B (en) * | 2016-06-14 | 2018-05-08 | 四川帕沃可矿物纤维制品有限公司 | A kind of rock wool production line of energy-saving high yield |
| CN106082685A (en) * | 2016-06-14 | 2016-11-09 | 四川帕沃可矿物纤维制品有限公司 | A kind of agricultural rock wool and the manufacture method of agricultural rock wool |
| CN106116133A (en) * | 2016-06-14 | 2016-11-16 | 四川帕沃可矿物纤维制品有限公司 | A kind of rock wool production line of energy-saving high yield |
| CN106082685B (en) * | 2016-06-14 | 2018-05-25 | 四川帕沃可矿物纤维制品有限公司 | A kind of agricultural rock wool and the production method of agricultural rock wool |
| CN106746581A (en) * | 2016-11-26 | 2017-05-31 | 保定市华锐方正机械制造有限公司 | A kind of method of rock wool waste material mixture regeneration treatment |
| CN106746581B (en) * | 2016-11-26 | 2019-09-24 | 保定市华锐方正机械制造有限公司 | A kind of method of rock wool waste material mixture regeneration treatment |
| CN106863827A (en) * | 2017-04-07 | 2017-06-20 | 马鞍山市北大益丰环保科技有限责任公司 | A kind of molten blast furnace slag produces the technique and device of rock wool |
| CN107553751A (en) * | 2017-08-17 | 2018-01-09 | 上海新型建材岩棉大丰有限公司 | A kind of agricultural rock wool automatic processing technology |
| CN107553751B (en) * | 2017-08-17 | 2019-04-09 | 上海新型建材岩棉大丰有限公司 | A kind of agricultural rock wool automatic processing technology |
| CN110055410A (en) * | 2019-05-06 | 2019-07-26 | 安徽工业大学 | A kind of electric furnace bag-type dust ash resource utilization method |
| CN113072305A (en) * | 2021-04-20 | 2021-07-06 | 洛阳昊海环保科技有限公司 | Method for preparing mineral wool and method for utilizing waste in production process of mineral wool |
| CN113072305B (en) * | 2021-04-20 | 2023-01-31 | 洛阳昊海环保科技有限公司 | Method for preparing mineral wool and method for utilizing waste in production process of mineral wool |
| CN115991576A (en) * | 2022-12-07 | 2023-04-21 | 南京玻璃纤维研究设计院有限公司 | Method for recycling rock wool waste residues through electric melting method and cooperatively treating VOCs (volatile organic compounds) in electric furnace |
| CN118517924A (en) * | 2024-07-23 | 2024-08-20 | 大城县洪海保温材料有限公司 | Waste heat recovery system is used in rock wool production |
| CN118517924B (en) * | 2024-07-23 | 2024-09-13 | 大城县洪海保温材料有限公司 | Waste heat recovery system is used in rock wool production |
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