CN105859307A - Method for processing and recovering carboniferous waste fireproof materials - Google Patents
Method for processing and recovering carboniferous waste fireproof materials Download PDFInfo
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- CN105859307A CN105859307A CN201610191579.3A CN201610191579A CN105859307A CN 105859307 A CN105859307 A CN 105859307A CN 201610191579 A CN201610191579 A CN 201610191579A CN 105859307 A CN105859307 A CN 105859307A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The invention provides a method for processing and recovering carboniferous waste fireproof materials. The method comprises the steps of recovering waste magnesia-carbon unburned bricks, waste alumina-magnesia-carbon unburned bricks, waste alumina-carbon unburned bricks and waste alumina-silicon carbide-carbon unburned bricks, then, obtaining finished reclaimed material granules, and producing magnesia-carbon bricks, alumina-magnesia-carbon bricks, alumina-carbon bricks and alumina-silicon carbide-carbon bricks by using the finished reclaimed material granules. According to the method, the utilization ratio of products is increased, the emission of solid pollutants is reduced, the environmental pollution is reduced, and the production cost of the products is reduced. The performance of the obtained finished reclaimed material granules is basically consistent with that of original unburned brick magnesia, so that the recycling of the carboniferous waste fireproof materials is promoted.
Description
Technical field
The present invention relates to metallurgical material manufacture field, particularly relate to the processing recovery method of carbon containing waste refractory materials.
Background technology
Carbon containing refractory refers to carbon materials and refractory material oxide, non-oxidized substance, and additive etc. uses the high-performance refractory material that certain Technology prepares.Carbon containing refractory has excellent thermal shock resistance, anti-slag penetration and Erosion resistance.At present, development along with science and technology, the demand of carbon containing refractory is increasing, the consumption that wherein steel industry is annual accounts for more than the 60% of carbon containing refractory total output, but owing to the recycling of waste material is lacked corresponding incentives and technical support, the typical processing mode of carbon containing waste refractory materials is buried exactly.Owing to the consumption of carbon containing refractory is relatively big, expensive, so directly carbon containing waste refractory materials being buried, i.e. adding production cost, causing again the waste of material.
Metallurgical material factory of mining industry company limited of Chong Gang group found the factory theory mainly include refractory material recycling economy utilize, neighboring markets include weight steel, reach the waste refractory materials substantial amounts that steel, Wei Gangdeng steel mill are annual, and the our factory particularly utilization rate on carbon containing waste refractory materials at present is less than 20%, utilization rate is low, and production cost is high.Therefore, offer one is provided badly and improves carbon containing waste refractory materials utilization rate, reduce the processing recovery method of the carbon containing waste refractory materials of production cost.
Summary of the invention
For above-mentioned deficiency present in prior art, how the invention reside in provides a kind of and improves carbon containing waste refractory materials utilization rate, reduces the processing recovery method of the carbon containing waste refractory materials of production cost.
For solving above-mentioned technical problem, it is achieved goal of the invention, the technical solution used in the present invention is as follows:
The processing recovery method of carbon containing waste refractory materials, it is characterised in that comprise the following steps:
1) choosing classification is picked: the carbon containing of recovery is discarded fire proof material brick base and carries out picking choosing by magnesium carbonaceous, magnalium carbonaceous, aluminum carbonaceous and aluminium silicon carbide carbonaceous four kind, obtain waste magnesia carbon bricks base, waste aluminium magnesia carbon brick base, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe；And removal carbon containing discards dry slag layer and the chamotte on fire proof material brick base surface while picking choosing；
2) aquation: the waste magnesia carbon bricks base and the waste aluminium magnesia carbon brick base that obtain after picking choosing carry out hydration reaction respectively, obtains magnesium carbon aquation adobe and magnalium carbon aquation adobe, and hydration treatment time period is 12-16 hour；
3) dry: utilize drying kiln that magnesium carbon aquation adobe, magnalium carbon aquation adobe, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe are dried, obtain drying adobe；Dry the moisture Control of adobe below 0.5%；
4) broken except ferrum: to crush drying adobe, and in multiple positions, the granule after crushing is carried out iron removal by magnetic separation during broken, obtain except ferrum granule；
5) roll: utilizing chaser to roll except ferrum granule, the time of rolling is 10-12 minute, obtains rolling granule；
6) screening obtains reworked material: the discharging opening at chaser installs screening plant, carries out gradation to rolling granule, it is thus achieved that finished product regenerated particles；
7) adobe is produced: utilize the finished product regenerated particles obtained to produce magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks or aluminum-silicon carbide brick.
Further, in described step 1, while picking choosing, use hammer carbon containing to discard fire proof material brick base, remove carbon containing and discard dry slag layer and the chamotte on fire proof material brick base surface.
Further, described step 2 use following hydration plant carry out hydration reaction；Described hydration plant includes aquation pond, cantilever crane and multiple adobe placing frame；Aquation pond is that concave downward is formed, equipped with the cell body of hydration reaction solution；Cantilever crane includes vertically fixing near aquation pool side edge column, and is fixed on column upper end, the revoliving arm that can rotate along the circumferential direction of column, and revoliving arm can rotate above aquation pond；Adobe placing frame is to be rotated sidewall encirclement by four fixed sidewalls and one to be formed, the cuboid frame of upper end open, it is equipped with through hole on fixed sidewall and rotation sidewall, described waste magnesia carbon bricks base or waste aluminium magnesia carbon brick base are placed in adobe placing frame, rotate and be rotationally connected between sidewall and a fixed sidewall so that rotating side wall energy enough rotates to being unfolded into discharging opening；
During hydration reaction, waste magnesia carbon bricks base or the waste aluminium magnesia carbon brick base of same classification are placed in same adobe placing frame, adobe placing frame is suspended on the revoliving arm of cantilever crane, adobe placing frame is rotated to after above aquation pond by cantilever crane, and adobe placing frame is put in aquation pond and carry out hydration reaction, after hydration reaction is complete, adobe placing frame is hung aquation pond and carries out solid-liquid separation by cantilever crane, obtains magnesium carbon aquation adobe and magnalium carbon aquation adobe.
Further, in described step 4, during broken when multiple positions carry out iron removal by magnetic separation to the granule after crushing, at least two in following various ways is used to carry out iron removal by magnetic separation: 1. to break machine latter linked big belt inclination angle mounting rotary drum formula tramp iron separator at jaw；2. electric magnetic iron remover is installed on the feeding belt of vibrosieve；3. alnico magnets are installed in the outlet at chaser；4. electric magnetic iron remover is installed on the belt-conveying entering classifying screen.
Compared to prior art, present invention have the advantage that
The processing recovery method of the carbon containing waste refractory materials that the present invention provides, after waste magnesia carbon bricks base, waste aluminium magnesia carbon brick base, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe are reclaimed, obtain finished product regenerated particles, and utilize finished product regenerated particles to produce magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks and aluminum-silicon carbide brick, improve product utilization rate, decrease the discharge of solid pollutant, reduce environmental pollution, reduce production cost.The performance of the finished product regenerated particles obtained closer to the performance of former adobe magnesia, strengthens the recycling to carbon containing waste refractory materials than untreated useless brick granule.
Accompanying drawing explanation
Fig. 1 is the block diagram of the processing recovery method of carbon containing waste refractory materials in embodiment.
Fig. 2 is the structural representation of hydration plant in embodiment.
Wherein in Fig. 2,1-aquation pond, 2-adobe placing frame, 3-carbon containing discards fire proof material brick base, the column of 4-cantilever crane, the revoliving arm of 5-cantilever crane.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment:
The processing recovery method of carbon containing waste refractory materials, as it is shown in figure 1, comprise the following steps:
1) choosing classification is picked: the carbon containing of recovery is discarded fire proof material brick base (hereinafter simply referred to as discarding adobe) and carries out picking choosing by magnesium carbonaceous, magnalium carbonaceous, aluminum carbonaceous and aluminium silicon carbide carbonaceous four kind, obtain waste magnesia carbon bricks base, waste aluminium magnesia carbon brick base, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe；And removal carbon containing discards dry slag layer and the chamotte on fire proof material brick base surface while picking choosing；While picking choosing, use hammer carbon containing to discard fire proof material brick base, remove carbon containing and discard dry slag layer and the chamotte on fire proof material brick base surface.
The carbon containing reclaimed discards the resistance to material of working lining that fire proof material brick mainly includes that the processes such as waste magnesia carbon bricks base, waste aluminium magnesia carbon brick base, waste aluminium carbon brick base and four kinds of materials of waste aluminium silicon carbide carbon adobe, mainly ladle, converter, hot-metal bottle obtain after processing.The carbon containing reclaimed discards fire proof material brick base mainly protoplasm layer, transition zone, conversion zone and dry slag layer.Dry slag layer refers to the slag of the thin layer adhered on the work surface of discarded adobe, the material being i.e. etched and the impurity of metallic iron.This oxidation of carbon back in conversion zone is complete, and is permeated with part slag.Transition zone is the gradation zone of the erosion of discarded adobe.Protoplasm layer maintains the state of original brick substantially.In order to not affect the regeneration of discarded adobe, it is necessary to the harmful components such as dry slag layer and chamotte are removed.
The carbon containing of recovery being discarded fire proof material brick base carry out picking choosing, be because for different discarded adobes, its processing removal process is different.Owing to waste aluminium carbon brick base great majority are all outdoor storages, air exists moisture, thus waste aluminium carbon brick during depositing with the moisture generation hydration reaction in air, processing reclaim Al2O3C Bricks base time, hydration step can be saved.Owing to the aluminum in waste aluminium silicon carbide carbon adobe is not or not presented in aluminium sesquioxide presented in activated aluminum, there is not hydration reaction in Qi Heshui, so hydration step can also be saved.
2) aquation: the waste magnesia carbon bricks base and the waste aluminium magnesia carbon brick base that obtain after picking choosing carry out hydration reaction respectively, obtains magnesium carbon aquation adobe and magnalium carbon aquation adobe, and hydration treatment time period is 12-16 hour；
Owing to being the most all added with aluminium powder as antioxidant when producing magnesia carbon brick and aluminium-magnesia carbon brick.At high temperature aluminium powder will react with carbon and generate aluminium carbide whisker, and aluminium carbide easily occurs hydration reaction, and producing substantial amounts of gas discharges and with change in volume drastically, causes efflorescence and the cracking of brick body.Therefore, by waste magnesia carbon bricks base and waste aluminium magnesia carbon brick base after hydration reaction, on the one hand the aluminium carbide harmful substance discarded adobe within is eliminated, when preventing production adobe, aluminium carbide generation hydration reaction, cause efflorescence and the cracking of brick body.On the other hand aluminium carbide forms aluminium oxide through a series of change, and then in use generates magnesium aluminate spinel, is conducive to improving the corrosion resistance of goods.
In actual use, length to hydration treatment time period has done collection and the analysis of many groups experimental data, combine usage amount and the break process ability of metallurgical material factory of mining industry company limited of Chong Gang group reworked material every day, comprehensively draw hydration treatment time period be 12 hours to 16 hours be optimal.Time, the shortest hydration reaction was not fully complete, and the calcium oxide aquation in overlong time magnesia promotes magnesia particle efflorescence to affect the quality of reworked material.
When actually used, during in order to realize discarded adobe aquation and dry, transfer operation is simple and convenient, and utilizes existing facilities and equipment to reduce the advantages such as investment.Described step 2 use following hydration plant carry out hydration reaction；Described hydration plant, as in figure 2 it is shown, include aquation pond, cantilever crane and multiple adobe placing frame；Aquation pond is that concave downward is formed, equipped with the cell body of hydration reaction solution (mainly water)；Cantilever crane (can also the most commercially obtain) includes vertically fixing near aquation pool side edge column, and is fixed on column upper end, the revoliving arm that can rotate along the circumferential direction of column, and revoliving arm can rotate above aquation pond；Adobe placing frame is to be rotated sidewall encirclement by four fixed sidewalls and one to be formed, the cuboid frame of upper end open, it is equipped with through hole on fixed sidewall and rotation sidewall, described waste magnesia carbon bricks base or waste aluminium magnesia carbon brick base are placed in adobe placing frame, rotate and be rotationally connected between sidewall and a fixed sidewall so that rotating side wall energy enough rotates to being unfolded into discharging opening；
During hydration reaction, waste magnesia carbon bricks base or the waste aluminium magnesia carbon brick base of same classification being placed in same adobe placing frame, wherein, the number of the adobe placing frame of use can determine according to the size in aquation pond, aquation pond is the biggest, and the number of the adobe placing frame of use is the most.Adobe placing frame is suspended on the revoliving arm of cantilever crane, adobe placing frame is rotated to after above aquation pond by cantilever crane, and adobe placing frame is put in aquation pond and carry out hydration reaction, after hydration reaction is complete, adobe placing frame is hung aquation pond and carries out solid-liquid separation by cantilever crane, obtains magnesium carbon aquation adobe and magnalium carbon aquation adobe.
Above-mentioned adobe placing frame can be formed by dry kiln car transformation discarded in metallurgical material factory of mining industry company limited of Chong Gang group workshop.The load receiving part being dried kiln car includes base bearing, and is arranged on base bearing, for the chase of load-bearing.The chase of existing dry kiln car is also surrounded formed by four sidewalls and a rotatable sidewall, the cuboid frame of upper end open, rotatably it is rotationally connected between sidewall and a sidewall so that rotatable sidewall can rotate to being unfolded into discharging opening, for adobe from discharge hole for discharge.Therefore when processing adobe placing frame, can directly use the iron frame structure of dry kiln car, directly through hole is set on the sidewall of chase, make the solution in aquation pond can enter in adobe placing frame, with the discarded adobe generation hydration reaction in adobe placing frame, the needs that set of the hole size on adobe placing frame sidewall ensure that the discarded adobe being placed in adobe placing frame is in course of reaction, it is impossible to fall in aquation pond.The adobe placing frame transformed by dry kiln car, during use, first the discarded adobe after picking choosing is directly entered in adobe placing frame, cantilever crane is used to hang in aquation pond, re-use cantilever crane after aquation is good to hang out, and in follow-up baking step, be transported on the base bearing on drying kiln track with fork truck, push drying kiln and dry.Owing to adobe placing frame is formed by the chase transformation being dried kiln car, itself have been able to mate base bearing, with fork truck transhipment adobe placing frame to stock ground after drying, and rout up adobe in adobe placing frame.
3) dry: utilize drying kiln that magnesium carbon aquation adobe, magnalium carbon aquation adobe, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe are dried, obtain drying adobe；Dry the moisture Control of adobe below 0.5%；Every batch dry adobe have to pass through detection qualified after could put into next procedure.
When being embodied as, the infrared ray electric roasting kiln of available special resistance to production line is dried.Reducing water content in drying adobe particularly important, general magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks and aluminum-silicon carbide brick all use resin as bonding agent when producing.When utilizing the finished product regenerated particles generated to produce magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks and aluminum-silicon carbide brick, if water content is higher, finished product regenerated particles pore hinders the intrusion as bonding agent resin containing moisture content, cause finished product regenerated particles poor with the package status of fine powder, the molding effect of pug is poor, and quality of item declines.The baking process simultaneously produced is exactly decomposition and the drainage procedure of resinoid bond in fact, during it, the too high meeting of moisture content causes the discharge of a large amount of gas to cause goods (i.e. magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks and aluminum-silicon carbide brick) inside micro-crack occur, and moisture content discharge after the hole left over more, the apparent porosity of goods increases, and reduces the corrosion resistance of goods.
4) broken except ferrum: to crush drying adobe, and in multiple positions, the granule after crushing is carried out iron removal by magnetic separation during broken, obtain except ferrum granule；
In described step 4, during broken when multiple positions carry out iron removal by magnetic separation to the granule after crushing, at least two in following various ways is used to carry out iron removal by magnetic separation: 1. to break machine latter linked big belt inclination angle mounting rotary drum formula tramp iron separator at jaw；2. electric magnetic iron remover is installed on the feeding belt of vibrosieve；3. alnico magnets are installed in the outlet at chaser；4. electric magnetic iron remover is installed on the belt-conveying entering classifying screen.
nullAquation、Adobe after drying and processing is broken into the≤coarse granule of 50mm by PEX250 × 1000 fine jaw-crusher，Through belt-conveying、Bucket elevator (big belt inclination angle refers to belt-conveying and the link position of bucket elevator machine) enters GYP-600 unit for inertial conic crusher and carries out in small, broken bits，Granule after in small, broken bits is sent into 3ZSF-1250 × 2,500 3 layer linear vibrating screen by B500mm corrugated flange blet conveyor (i.e. vibrosieve feeding belt) and is carried out classification (carrying out classification in classifying screen)，More than 5mm granule returns to gyratory crusher through pipeline and again crushes，Below 5mm granule directly enters LNX-800 planetary type wheel chaser through pipeline to carry out rolling process，Granule is directly entered the vibrosieve being transformed into by ZG600 × 1000 oscillating feeder after rolling carries out being classified into 5-3mm、3-1mm，1-0mm is at different levels is made into product reworked material.
When being embodied as, break process can crush on the special equipment of resistance to crushing production line, granule warehouse entry route after transformation is broken, the granule that obtains after break process (diameter become through jaw crusher, cone crushing is in 5mm particles below) is without feed bin, directly carry out planetary kolleroang and roll (follow-up grinding operation), decrease manufacturing procedure.Owing to being mingled with the harmful substances such as substantial amounts of irony thing in the dry slag layer drying adobe after drying and crack, therefore in shattering process, the installation of equipment for removing ferric ion is particularly important, and our factory have employed the mode of multiple spot magnetic separation except ferrum, it is ensured that the quality of finished product regenerated particles.
5) roll: utilizing chaser to roll except ferrum granule, the time of rolling is 10-12 minute, obtains rolling granule；
Through broken except ferrum after obtain except ferrum granule be the aggregate combined by the granule of a lot of materials, wherein with the presence of a lot of false granules, be directly added into article of manufacture, easily cause second-time breakage, goods occur that slabbing affects product quality.Only the granule after crushing except ferrum is carried out pretreatment, could separate with the fine powder being wrapped in surface except ferrum granule, and then obtain the finished product regenerated particles of high-quality, produce high value added product.The preprocess method generally used in the world has grinding method, invades stain method and floatation, and our factory combines physical condition and selected grinding method to carry out pretreatment.Crush except obtain after ferrum rolls to planetary Mill with roller except ferrum granule direct transdermal band and bucket propose transport, roll 10-12 minute time best results.Because the time of rolling is too short, totally not playing pretreating effect except granule false in ferrum granule does not eliminates, roll overlong time, cause except the separating twice of ferrum granule, the grain composition screened out is unreasonable, does not reaches comprehensive utilization effect.
6) screening obtains reworked material: the discharging opening at chaser installs screening plant, carries out gradation to rolling granule, it is thus achieved that finished product regenerated particles.When being embodied as, lifting examination vibrosieve can be selected according to the present level of chaser discharging opening, be sieved into different gradation granule, be incorporated to a bag packed for standby use.
7) adobe is produced: utilize the finished product regenerated particles obtained to produce magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks or aluminum-silicon carbide brick.
When wherein producing, it is respectively the finished product regenerated particles of 5-3mm, 3-1mm, 1-0mm as primary raw material with granularity, adding granularity is the magnesium aluminate spinel of 1-0mm, 5-3mm, 3-1mm, 1-0mm, the highly-purity magnesite of≤0.088mm, fused magnesite, high grade bauxite, the raw materials such as crystalline flake graphite, additive is metal Al powder and carborundum powder, using the fixed carbon content thermoset phenolic resin more than 45% as bonding agent, makes secondary magnesium Al2O3C Bricks, regenerative magnesia-carbon brick etc. by friction press.
When being embodied as, from the following aspects, the finished product regenerated particles obtained can be carried out subsequent production.
1) the finished product regenerated particles of the magnesia carbon brick of acquisition can be classified into the granule of a diameter of 1-5mm and 0-1mm, substitute part magnesia particle in magnesia carbon brick, be prepared as regenerative magnesia-carbon brick by adding additive and adjusting process grating.The finished product regenerated particles of the aluminium-magnesia carbon brick of acquisition can be classified into the granule of a diameter of 1-5mm and 0-1mm, substitute part High-Alumina raw material and magnesia particle in aluminium-magnesia carbon brick, it is prepared as secondary aluminium magnesia carbon brick, its stable performance by adding additive and adjusting process grating.
2) analysis of the composition of the finished product regenerated particles of the basis aluminum-silicon carbide brick to obtaining, can join without producing in water stemming and general high-alumina brick.
3) by finished product regenerated particles and the finished product regenerated particles of aluminium-magnesia carbon brick of the magnesia carbon brick of a diameter of 0-1mm of acquisition, grind to form the special pug of fine powder production ladle, the goods of different quality can be adjusted to which kind of grating according to different feed postition (as added), addition.
This embodiment make use of process route and the production capacity of the special existing equipment of resistance to production line of our factory substantially, add and transformation part facility, the reworked material technical performance obtained after processed meets the technique Production requirement of product, utilizes minimum putting into obtain abundant benefit.
The finished product regenerated particles obtained after said process processes reduces the characteristic of its raw material substantially, by certain processing compound, and can be with goods such as raw material production magnesia carbon brick, aluminium-magnesia carbon brick such as Substitute For Partial magnesia and alumines.Such as through the chemical analysis of the carbon containing waste refractory materials to multiple batches of recovery, obtain waste magnesia carbon bricks, its key component is magnesia, graphite and antioxidant etc., the finished product regenerated particles of the magnesia carbon brick obtained after carrying out integrated treatment recovery by above methods, it is mainly composed of High-Alumina raw material, spinelle, magnesia and graphite, and its performance is basic with former granular magnesium grittiness energy consistent (as shown in the table).The finished product regenerated particles of aluminum-silicon carbide brick be mainly composed of High-Alumina raw material, carborundum and graphite.
| Title | Bulk density g/cm3 | Apparent porosity % |
| Waste magnesia carbon bricks granule | 3.01 | 4.65 |
| Finished product reworked material magnesia carbon brick granule | 3.15 | 2.4 |
| Former magnesia particle | 3.30 | 1.8 |
Finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent, without deviating from objective and the scope of technical solution of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (4)
1. the processing recovery method of carbon containing waste refractory materials, it is characterised in that comprise the following steps:
1) choosing classification is picked: the carbon containing of recovery is discarded fire proof material brick base and carries out picking choosing by magnesium carbonaceous, magnalium carbonaceous, aluminum carbonaceous and aluminium silicon carbide carbonaceous four kind, obtain waste magnesia carbon bricks base, waste aluminium magnesia carbon brick base, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe；And removal carbon containing discards dry slag layer and the chamotte on fire proof material brick base surface while picking choosing；
2) aquation: the waste magnesia carbon bricks base and the waste aluminium magnesia carbon brick base that obtain after picking choosing carry out hydration reaction respectively, obtains magnesium carbon aquation adobe and magnalium carbon aquation adobe, and hydration treatment time period is 12-16 hour；
3) dry: utilize drying kiln that magnesium carbon aquation adobe, magnalium carbon aquation adobe, waste aluminium carbon brick base and waste aluminium silicon carbide carbon adobe are dried, obtain drying adobe；Dry the moisture Control of adobe below 0.5%；
4) broken except ferrum: to crush drying adobe, and in multiple positions, the granule after crushing is carried out iron removal by magnetic separation during broken, obtain except ferrum granule；
5) roll: utilizing chaser to roll except ferrum granule, the time of rolling is 10-12 minute, obtains rolling granule；
6) screening obtains reworked material: the discharging opening at chaser installs screening plant, carries out gradation to rolling granule, it is thus achieved that finished product regenerated particles；
7) adobe is produced: utilize the finished product regenerated particles obtained to produce magnesia carbon brick, aluminium-magnesia carbon brick, Al2O3C Bricks or aluminum-silicon carbide brick.
2. the processing recovery method of carbon containing waste refractory materials as claimed in claim 1, it is characterized in that, in described step 1, while picking choosing, use hammer carbon containing to discard fire proof material brick base, remove carbon containing and discard dry slag layer and the chamotte on fire proof material brick base surface.
3. the processing recovery method of carbon containing waste refractory materials as claimed in claim 1, it is characterised in that use following hydration plant to carry out hydration reaction in described step 2；Described hydration plant includes aquation pond, cantilever crane and multiple adobe placing frame；Aquation pond is that concave downward is formed, equipped with the cell body of hydration reaction solution；Cantilever crane includes vertically fixing near aquation pool side edge column, and is fixed on column upper end, the revoliving arm that can rotate along the circumferential direction of column, and revoliving arm can rotate above aquation pond；Adobe placing frame is to be rotated sidewall encirclement by four fixed sidewalls and one to be formed, the cuboid frame of upper end open, it is equipped with through hole on fixed sidewall and rotation sidewall, described waste magnesia carbon bricks base or waste aluminium magnesia carbon brick base are placed in adobe placing frame, rotate and be rotationally connected between sidewall and a fixed sidewall so that rotating side wall energy enough rotates to being unfolded into discharging opening；
During hydration reaction, waste magnesia carbon bricks base or the waste aluminium magnesia carbon brick base of same classification are placed in same adobe placing frame, adobe placing frame is suspended on the revoliving arm of cantilever crane, adobe placing frame is rotated to after above aquation pond by cantilever crane, and adobe placing frame is put in aquation pond and carry out hydration reaction, after hydration reaction is complete, adobe placing frame is hung aquation pond and carries out solid-liquid separation by cantilever crane, obtains magnesium carbon aquation adobe and magnalium carbon aquation adobe.
4. the processing recovery method of carbon containing waste refractory materials as claimed in claim 1, it is characterized in that, in described step 4, during broken when multiple positions carry out iron removal by magnetic separation to the granule after crushing, at least two in following various ways is used to carry out iron removal by magnetic separation: 1. to break machine latter linked big belt inclination angle mounting rotary drum formula tramp iron separator at jaw；2. electric magnetic iron remover is installed on the feeding belt of vibrosieve；3. alnico magnets are installed in the outlet at chaser；4. electric magnetic iron remover is installed on the belt-conveying entering classifying screen.
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| CN107032806A (en) * | 2017-04-05 | 2017-08-11 | 海城市中兴高档镁质砖有限公司 | One kind produces converter body brick and preparation method thereof using black magnesia |
| CN107162611A (en) * | 2017-05-26 | 2017-09-15 | 长兴华悦耐火材料厂 | The resource recycle method of carbon containing waste and old refractory brick |
| CN111348898A (en) * | 2019-07-08 | 2020-06-30 | 营口石兴耐火材料科技有限公司 | Method for optimizing slag corrosion resistance and penetration resistance of low-carbon magnesia carbon material |
| CN114127031A (en) * | 2019-08-05 | 2022-03-01 | 里弗雷克特里知识产权两合公司 | Method for treating magnesia-carbon products |
| CN111099899A (en) * | 2019-12-31 | 2020-05-05 | 巩义市大润昌耐火材料有限公司 | Treatment process of waste magnesia carbon brick regenerated particles |
| CN111099899B (en) * | 2019-12-31 | 2022-03-22 | 巩义市大润昌耐火材料有限公司 | Treatment process of waste magnesia carbon brick regenerated particles |
| CN113248268A (en) * | 2021-04-25 | 2021-08-13 | 北京金隅通达耐火技术有限公司 | Recycling method of used cement kiln bricks |
| CN113200756A (en) * | 2021-04-25 | 2021-08-03 | 北京金隅通达耐火技术有限公司 | Method for preparing regeneration raw material from used cement kiln alkaline bricks |
| CN113943165A (en) * | 2021-11-15 | 2022-01-18 | 海城利尔麦格西塔材料有限公司 | Preparation method of alumina-magnesia-carbon brick |
| CN114147040A (en) * | 2021-12-29 | 2022-03-08 | 中冶焦耐(大连)工程技术有限公司 | Integrated treatment device and method for waste magnesia carbon bricks |
| CN114436553A (en) * | 2022-01-25 | 2022-05-06 | 新密市泰昌浇注耐磨材料有限公司 | Method for recycling waste refractory materials in cement plant |
| CN115385702A (en) * | 2022-08-30 | 2022-11-25 | 江苏锦耐新材料科技有限公司 | Recovery process of magnesia carbon brick waste |
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Application publication date: 20160817 |