CN103771834A - Fabrication method of composite magnesia carbon brick - Google Patents
Fabrication method of composite magnesia carbon brick Download PDFInfo
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- CN103771834A CN103771834A CN201310754558.4A CN201310754558A CN103771834A CN 103771834 A CN103771834 A CN 103771834A CN 201310754558 A CN201310754558 A CN 201310754558A CN 103771834 A CN103771834 A CN 103771834A
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- carbon brick
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- pug
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Abstract
The invention discloses a fabrication method of a composite magnesia carbon brick. The method comprises the following technological steps: recovering residual core of the composite magnesia carbon brick; deslagging the residual core; crushing and grinding the residual core; screening and grading; preparing pug; mixing and grinding the pug; adding to a pressure mold frame; partitioning by an appliance, pressing and molding, and selecting and baking, so as to form the product. By adopting the composite fabrication method, the pug is prepared at a work part of the magnesia carbon brick by adopting the original fabrication method; the pug is prepared at a non-work part by adopting an abandoned waste green brick by certain process treatment; the interval is controlled by the appliance when the pug is put into the mold, so as to achieve the target of composite fabrication. The work part of the composite magnesia carbon brick does not affect the use effect; the non-work part still can be recovered to be reutilized after being dismantled. Thus, dual benefits of resource conservation and environment protection are achieved. By adopting the method disclosed by the invention, the residual core of the magnesia carbon brick is recycled again, pollution to the environment is reduced, magnesia resources are saved, the utilization rate of the magnesia resources is improved, and high economic benefits are obtained.
Description
Technical field
The present invention relates to a kind of processing method of utilizing new and old magnesium carbon material produced with combination magnesia carbon brick, relate in particular to a kind of manufacturing process of compound magnesia carbon brick.
Background technology
Metallurgical Industry electric arc furnace furnace lining adopts the magnesia of the different trades mark and crystalline flake graphite as main raw material(s) with magnesia carbon brick, forms through press compacting according to certain technical process.This magnesia carbon brick is in the time doing the use of arc furnace lining material, when goods be consumed to product total length more than 1/2nd or 2/3rds after, its goods nubbin will be toppled over as industrial refuse, cause nearly 1/3rd or the goods of above part be worth and cannot embody, wasted greatly non-renewable magnesia resource and graphite resource.
The maximum deficiency of prior art is to cause the waste of magnesia resource and graphite resource, and the residual core of magnesia carbon brick of removing has increased the impact on environment as industrial refuse.
Summary of the invention
The weak point existing for prior art, the object of the present invention is to provide a kind of manufacturing process of compound magnesia carbon brick, the method has been recycled the residual core of magnesia carbon brick again, reduce the pollution to environment, save magnesia resource and improved the utilization ratio of magnesia resource, obtained higher economic benefit.
Object of the present invention is achieved through the following technical solutions:
A manufacturing process for compound magnesia carbon brick, this processing method comprises following processing step:
The residual core of magnesia carbon brick reclaims: the residual core of magnesia carbon brick is recycled, obtain the residual nuclear material of magnesia carbon brick;
Residual core removes slag: remove the residual nuclear material of magnesia carbon brick lip-deep slag liquid pervious course and dregs layer;
Residual core fragmentation: adopt jaw crusher to carry out break process to the residual nuclear material of the magnesia carbon brick after removing slag, residual the magnesia carbon brick after removing slag nuclear material is crushed to the residual nuclear material of fritter magnesium carbon of 0～30mm size;
In small, broken bits: to adopt twin rollers to carry out fines break process to the residual nuclear material of fritter magnesium carbon, by the residual core fines of the magnesium carbon to 0～8mm size in small, broken bits residual nuclear material of fritter magnesium carbon;
Sieve classification: by vibrating screen classifier, residual magnesium carbon core fines is sieved into three kinds of fine granules classifications, three kinds of fine granules classifications are respectively the classification of 5～8mm granular size, the classification of 3～5mm granular size, the classification of 1～3mm granular size;
Pug preparation: preparation parts by weight are the magnesia carbon brick pug of 2 parts, prepare parts by weight simultaneously and be the residual core pug of 1 part, 2 parts of magnesia carbon brick pugs and 1 part of residual core pug are evenly mixed to get to magnesium carbon by ratio of weight and the number of copies and turn pug, wherein residual core pug is prepared in the following manner: the parts by weight of 5～8mm granular size classification are 30～45, the parts by weight of 3～5mm granular size classification are 30～40, and the parts by weight of 1～3mm granular size classification are 15～25;
Pug mixed grind: mixed magnesium carbon is turned to pug and carry out mixed grind operation;
Add pressure framed in: by mix grind after, the magnesium carbon for preparing turn pug join pressure framed in;
Separate with utensil: at pressure, framed interior with utensil, magnesium carbon to be turned to pug spaced apart, then carries out compacting tool set to bit manipulation;
Compression moulding: by the framed operation that is pressed of pressure, obtain elementary compound magnesia carbon brick;
Selection baking: elementary compound magnesia carbon brick is chosen, chosen qualified elementary compound magnesia carbon brick and carry out baking processing;
Finished product: the compound magnesia carbon brick after baking processing just obtains the compound magnesia carbon brick of finished product.
In order to realize better the present invention, the described residual core step that removes slag adopts hand hammer to knock out 1～5mm of the residual nuclear material surface thickness of magnesia carbon brick, obtains clean, the surface residual nuclear material of magnesia carbon brick without slag.
The processing method that the invention provides a kind of preferred selection baking procedure is: described selection baking procedure is to use fire coal or Sweet natural gas to rotate the elementary compound magnesia carbon brick after qualified selection to be baked to 150～200 ℃.
The invention provides a kind of preferred jaw crusher structure technology scheme is: the jaw crusher in described residual core shattering process is PE600*400 jaw crusher.
The present invention compares compared with prior art, has the following advantages and beneficial effect:
(1) the present invention adopts produced with combination method, magnesia carbon brick working position is adopted to former production method configuration pug, inoperative position adopts the useless adobe (original product three/part) of abandoning to be configured to pug after certain art breading, and in the time that pug enters mould by addition Separation control of utensil, thereby reach the object of produced with combination.This compound magnesia carbon brick working position does not affect result of use, inoperative position remove after recyclable recycling still, thereby realize the double benefit of resources conservation and environmental protection.
(2) the part wasting of resources problem and the residual core of magnesia carbon brick that the invention solves magnesia carbon brick are processed problem, have obtained the effect making use of waste and old articles with energy-conserving and environment-protective, can obtain certain economic benefit simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment
As shown in Figure 1, a kind of manufacturing process of compound magnesia carbon brick, this processing method comprises following processing step:
The residual core of magnesia carbon brick reclaims: the residual core of magnesia carbon brick is recycled, obtain the residual nuclear material of magnesia carbon brick; The residual core of magnesia carbon brick of this step is the residual base waste material of magnesia carbon brick after magnesia resource is used.
Residual core removes slag: remove the residual nuclear material of magnesia carbon brick lip-deep slag liquid pervious course and dregs layer; The present embodiment core step that removes slag adopts hand hammer to knock out 1～5mm of the residual nuclear material surface thickness of magnesia carbon brick, obtains clean, the surface residual nuclear material of magnesia carbon brick without slag.
Residual core fragmentation: adopt jaw crusher to carry out break process to the residual nuclear material of the magnesia carbon brick after removing slag, residual the magnesia carbon brick after removing slag nuclear material is crushed to the residual nuclear material of fritter magnesium carbon of 0～30mm size; Jaw crusher in the residual core shattering process of the present embodiment is preferably PE600*400 jaw crusher.
In small, broken bits: to adopt twin rollers to carry out fines break process to the residual nuclear material of fritter magnesium carbon, by the residual core fines of the magnesium carbon to 0～8mm size in small, broken bits residual nuclear material of fritter magnesium carbon;
Sieve classification: by vibrating screen classifier, residual magnesium carbon core fines is sieved into three kinds of fine granules classifications, three kinds of fine granules classifications are respectively the classification of 5～8mm granular size, the classification of 3～5mm granular size, the classification of 1～3mm granular size;
Pug preparation: preparation parts by weight are the magnesia carbon brick pug of 2 parts, prepare parts by weight simultaneously and be the residual core pug of 1 part, 2 parts of magnesia carbon brick pugs and 1 part of residual core pug are evenly mixed to get to magnesium carbon by ratio of weight and the number of copies and turn pug, wherein residual core pug is prepared in the following manner: the parts by weight of 5～8mm granular size classification are 30～45, the parts by weight of 3～5mm granular size classification are 30～40, and the parts by weight of 1～3mm granular size classification are 15～25;
Pug mixed grind: mixed magnesium carbon is turned to pug and carry out mixed grind operation;
Add pressure framed in: by mix grind after, the magnesium carbon for preparing turn pug join pressure framed in;
Separate with utensil: at pressure, framed interior with utensil, magnesium carbon to be turned to pug spaced apart, then carries out compacting tool set to bit manipulation;
Compression moulding: by the framed operation that is pressed of pressure, obtain elementary compound magnesia carbon brick;
Selection baking: elementary compound magnesia carbon brick is chosen, chosen qualified elementary compound magnesia carbon brick and carry out baking processing.It is to use fire coal or Sweet natural gas to rotate the elementary compound magnesia carbon brick after qualified selection to be baked to 150～200 ℃ that the present embodiment is preferably chosen baking procedure.
Finished product: the compound magnesia carbon brick after baking processing just obtains the compound magnesia carbon brick of finished product.
The present invention adopts produced with combination method, magnesia carbon brick working position is adopted to former production method configuration pug, inoperative position adopts the useless adobe (original product three/part) of abandoning to be configured to pug after certain art breading, and in the time that pug enters mould by addition Separation control of utensil, thereby reach the object of produced with combination.This compound magnesia carbon brick working position does not affect result of use, inoperative position remove after recyclable recycling still, thereby realize the double benefit of resources conservation and environmental protection.
The part wasting of resources problem and the residual core of magnesia carbon brick that the invention solves magnesia carbon brick are processed problem, have obtained the effect making use of waste and old articles with energy-conserving and environment-protective, can obtain certain economic benefit simultaneously.
Production flow process of the present invention is not made great change, when entering mould, pug adopt the utensil (the preferred steel disc of the present embodiment) that is applicable to mould specification by spaced apart two kinds of pugs, pug is extracted interval utensil (the preferred steel disc of the present embodiment) direct pressing out after entering mould, it is simple to operate, product practicality, make this series products and both can reduce product cost, effectively utilized again waste and old resource, reached the double benefit of energy efficiency.
The use-pattern of the magnesia carbon brick that manufacture of the present invention obtains is not done to change, and result of use does not also change, and final product per ton has reached magnesia, the graphite resource of saving 25～35%, and only the electric arc furnace of 30 tons just can be saved more than 20000 yuan.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a manufacturing process for compound magnesia carbon brick, is characterized in that: this processing method comprises following processing step:
The residual core of magnesia carbon brick reclaims: the residual core of magnesia carbon brick is recycled, obtain the residual nuclear material of magnesia carbon brick;
Residual core removes slag: remove the residual nuclear material of magnesia carbon brick lip-deep slag liquid pervious course and dregs layer;
Residual core fragmentation: adopt jaw crusher to carry out break process to the residual nuclear material of the magnesia carbon brick after removing slag, residual the magnesia carbon brick after removing slag nuclear material is crushed to the residual nuclear material of fritter magnesium carbon of 0～30mm size;
In small, broken bits: to adopt twin rollers to carry out fines break process to the residual nuclear material of fritter magnesium carbon, by the residual core fines of the magnesium carbon to 0～8mm size in small, broken bits residual nuclear material of fritter magnesium carbon;
Sieve classification: by vibrating screen classifier, residual magnesium carbon core fines is sieved into three kinds of fine granules classifications, three kinds of fine granules classifications are respectively the classification of 5～8mm granular size, the classification of 3～5mm granular size, the classification of 1～3mm granular size;
Pug preparation: preparation parts by weight are the magnesia carbon brick pug of 2 parts, prepare parts by weight simultaneously and be the residual core pug of 1 part, 2 parts of magnesia carbon brick pugs and 1 part of residual core pug are evenly mixed to get to magnesium carbon by ratio of weight and the number of copies and turn pug, wherein residual core pug is prepared in the following manner: the parts by weight of 5～8mm granular size classification are 30～45, the parts by weight of 3～5mm granular size classification are 30～40, and the parts by weight of 1～3mm granular size classification are 15～25;
Pug mixed grind: mixed magnesium carbon is turned to pug and carry out mixed grind operation;
Add pressure framed in: by mix grind after, the magnesium carbon for preparing turn pug join pressure framed in;
Separate with utensil: at pressure, framed interior with utensil, magnesium carbon to be turned to pug spaced apart, then carries out compacting tool set to bit manipulation;
Compression moulding: by the framed operation that is pressed of pressure, obtain elementary compound magnesia carbon brick;
Selection baking: elementary compound magnesia carbon brick is chosen, chosen qualified elementary compound magnesia carbon brick and carry out baking processing;
Finished product: the compound magnesia carbon brick after baking processing just obtains the compound magnesia carbon brick of finished product.
2. the processing method of the magnesia mending material of using according to making electric arc furnace furnace lining claimed in claim 1, it is characterized in that: the described residual core step that removes slag adopts hand hammer to knock out 1～5mm of the residual nuclear material surface thickness of magnesia carbon brick, obtain clean, the surface residual nuclear material of magnesia carbon brick without slag.
3. the processing method of the magnesia mending material of using according to making electric arc furnace furnace lining claimed in claim 1, is characterized in that: described selection baking procedure is to use fire coal or Sweet natural gas to rotate the elementary compound magnesia carbon brick after qualified selection to be baked to 150～200 ℃.
4. the processing method of the magnesia mending material of using according to making electric arc furnace furnace lining claimed in claim 1, is characterized in that: the jaw crusher in described residual core shattering process is PE600*400 jaw crusher.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529483A (en) * | 2014-12-08 | 2015-04-22 | 四川宝龙建材有限责任公司 | Method for producing electric arc furnace wall magnesium-carbon wall brick by using magnesium-carbon brick remnant |
| CN104529491A (en) * | 2014-12-26 | 2015-04-22 | 江苏苏嘉集团新材料有限公司 | Method for preparing composite magnesia carbon bricks of different carbon content |
| CN105622070A (en) * | 2015-12-31 | 2016-06-01 | 海城市中兴高档镁质砖有限公司 | Magnesia-carbon brick prepared from residual magnesia-carbon bricks and preparation method of magnesia-carbon brick |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863675A (en) * | 2010-06-07 | 2010-10-20 | 浙江大学 | High-alumina structure heat-insulation integrated composite brick and preparation method |
| CN103274708A (en) * | 2013-06-09 | 2013-09-04 | 山西太钢不锈钢股份有限公司 | Method for preparing refractory material by utilizing wasted magnesia carbon brick |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863675A (en) * | 2010-06-07 | 2010-10-20 | 浙江大学 | High-alumina structure heat-insulation integrated composite brick and preparation method |
| CN103274708A (en) * | 2013-06-09 | 2013-09-04 | 山西太钢不锈钢股份有限公司 | Method for preparing refractory material by utilizing wasted magnesia carbon brick |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529483A (en) * | 2014-12-08 | 2015-04-22 | 四川宝龙建材有限责任公司 | Method for producing electric arc furnace wall magnesium-carbon wall brick by using magnesium-carbon brick remnant |
| CN104529491A (en) * | 2014-12-26 | 2015-04-22 | 江苏苏嘉集团新材料有限公司 | Method for preparing composite magnesia carbon bricks of different carbon content |
| CN105622070A (en) * | 2015-12-31 | 2016-06-01 | 海城市中兴高档镁质砖有限公司 | Magnesia-carbon brick prepared from residual magnesia-carbon bricks and preparation method of magnesia-carbon brick |
| CN105622070B (en) * | 2015-12-31 | 2018-11-09 | 海城利尔麦格西塔材料有限公司 | A kind of magnesia carbon brick and preparation method thereof produced using the residual brick of magnesium carbon |
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| CN103771834B (en) | 2015-06-17 |
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