CN105669214A

CN105669214A - Glass kiln sintered magnesite brick production method

Info

Publication number: CN105669214A
Application number: CN201410668879.7A
Authority: CN
Inventors: 赵永成
Original assignee: XUZHOU AOCHENG GLASS PRODUCT Co Ltd
Current assignee: XUZHOU AOCHENG GLASS PRODUCT Co Ltd
Priority date: 2014-11-21
Filing date: 2014-11-21
Publication date: 2016-06-15

Abstract

The present invention discloses a glass kiln sintered magnesite brick production method, and belongs to the field of production of refractories; a glass kiln sintered magnesite brick is prepared from the following raw materials by weight: 45-50% of sintered magnesite stone, 15-20% of waste magnesite brick , 5% of iron oxide, 10% of manganese ore, 15% of clay, 1% of sodium chloride, 1% of titanium oxide, 7% of sulphite pulp and balance of water by crushing, mixing, molding, calcining and other processes, the method has the advantages of use of common equipment, rational construction, simple operation, high production efficiency, good product quality, environmental friendliness and suitability for industrial production, and a product is mainly used for glass kiln thermal storage room checker bricks and the like.

Description

The production method of a kind of glass furnace sintered magnesia brick

Technical field:

The invention belongs to refractory materials production field, particularly relate to the production method of a kind of glass furnace sintered magnesia brick.

Background technology:

Glass is mainly made raw material with quartz sand and soda ash and is made through high temperature melting, glass furnace is exactly the equipment of fusion cast glass, glass furnace kind is more, such as tank furnace, crucible kiln etc., the most general a kind of kiln type applied in glass industry by tank furnace, it is built into by refractory brick, the damage of glass furnace kiln lining is mainly based on chemical erosion, and have the effect of thermal stresses, the degree of chemical erosion, speed and use position, kiln temperature, molten glass kind is closely related, certainly the quality of lining body itself is also most important, select glass melter refractory brick, kiln type should be considered, use position and Wear mechanism thereof, the kind of melting glass and the kind etc. of fuel, the pool wall that cell furnace contacts with glass metal and Di Deng position, pond, at present generally with containing zirconium laying fireproof bricks, in order to reduce costs, can with different laying fireproof bricks at other position of glass furnace. magnesia brick content of magnesia is more than 90%, and belonging to take periclasite as the basic refractory of principal crystalline phase, generally can be divided into sintered magnesia brick and the big class of Chemical bond magnesia brick two, magnesia brick has higher refractoriness, good alkali resistance slag performance, loading softening starts temperature height, but thermal shock resistance is poor. sintered magnesia brick take periclasite as raw material, through pulverizing, batching, kneading, shaping after, burn till under the high temperature of 1550～1600 DEG C, the firing temperature of high-purity goods, more than 1750 DEG C, main is used as regenerator chamber of glass kiln checker brick etc. China is the country that magnesium ore resources reserves enrich, and ore is fine quality, and wide shoreline and salt lake also have the fine prospect extracting magnesium oxide, and for development, magnesia fire-protecting wall provides advantageous condition. the present invention is the production method of a kind of glass furnace sintered magnesia brick, the method produces glass furnace sintered magnesia brick taking pulverizer, proportioning machine, muller, set of molds, kiln as equipment, the method have use general-purpose equipment, simple to operate, production efficiency height, good product quality, environmental protection, be applicable to suitability for industrialized production etc. series of advantages. summary of the invention:

The problem that the present invention mainly solves there is provided the production method of a kind of glass furnace sintered magnesia brick, the method is taking pulverizer, proportioning machine, muller, set of molds, kiln as equipment, it may also be useful to raw material comprise by weight ratio: sintering magnesium stone 40-45%, useless magnesia brick 15-20%, ferric oxide 6%, manganese ore 10%, clay 15%, sodium-chlor 1%, titanium oxide 1%, sulfite pulp 7%, water are appropriate.

The technical solution used in the present invention is:

(1) the sintering magnesium stone of formula ratio, useless magnesia brick, ferric oxide, manganese ore, clay, sodium-chlor, titanium oxide are sent into pulverizer and pulverized as powder, then proportioning machine is sent into, in proportioning machine, add sulfite pulp and the water of formula ratio, then by all material even blend in proportioning machine simultaneously.

(2) proportioning machine is sent into mixing roll, temperature in mixing roll is brought up to 130-150 DEG C, stop mixing after mixing 16-18 minute, shaping with sending into set of molds by the material in mixing roll, it is down to naturally to dry after normal temperature until temperature and within 15-20 hour, obtains solid brick.

(3) mould is sloughed, solid brick after drying is sent into kiln, first after the sintering temperature in kiln is risen to 550 DEG C from 0 DEG C by the time of 1.8-2 hour slowly, then in 1.4-1.6 hours, sintering temperature is risen to 1200 DEG C from 550 DEG C, within the time of 0.9-1.1 hour, sintering temperature is risen to 1450 DEG C from 1200 DEG C again, then stopping heating after the 18-20 hour time maintaining 1450 DEG C, after magnesia brick is progressively cooled to normal temperature, discharging obtains finished product.

The further technical scheme of the present invention is:

Muller described in step (1) is open mixing roll.

Kiln described in step (3) is tunnel kiln.

The invention has the beneficial effects as follows: the production method providing a kind of glass furnace sintered magnesia brick, the method uses general-purpose equipment, rational in infrastructure, there is simple to operate, production efficiency height, good product quality, environmental protection, and it being suitable for the advantage of suitability for industrialized production, product is mainly used as regenerator chamber of glass kiln checker brick and uses. Embodiment

Embodiment 1

To account for that total amount is sintering magnesium stone 40%, useless magnesia brick 20%, ferric oxide 6%, manganese ore 10%, clay 15%, sodium-chlor 1%, titanium oxide 1% are sent into pulverizer and pulverized as powder, then proportioning machine is sent into, in proportioning machine, add that to account for total amount be sulfite pulp 7% and appropriate water, then by all material even blend in proportioning machine simultaneously; Proportioning machine is sent into mixing roll, the temperature in mixing roll is brought up to 130 DEG C, stop mixing after mixing 18 minutes, shaping with sending into set of molds by the material in mixing roll, it is down to naturally to dry after normal temperature until temperature and obtains solid brick in 15 hours; Slough mould, solid brick after drying is sent into kiln, first after the sintering temperature in kiln is risen to 550 DEG C from 0 DEG C by the time of 1.8-2 hour slowly, then in 1.4-1.6 hours, sintering temperature is risen to 1200 DEG C from 550 DEG C, within the time of 0.9-1.1 hour, sintering temperature is risen to 1450 DEG C from 1200 DEG C again, then stopping heating after the 18 hours time maintaining 1450 DEG C, after magnesia brick is progressively cooled to normal temperature, discharging obtains finished product.

Embodiment 2

To account for that total amount is sintering magnesium stone 42.5%, useless magnesia brick 17.5%, ferric oxide 6%, manganese ore 10%, clay 15%, sodium-chlor 1%, titanium oxide 1% are sent into pulverizer and pulverized as powder, then proportioning machine is sent into, in proportioning machine, add that to account for total amount be sulfite pulp 7% and appropriate water, then by all material even blend in proportioning machine simultaneously; Proportioning machine is sent into mixing roll, the temperature in mixing roll is brought up to 140 DEG C, stop mixing after mixing 17 minutes, shaping with sending into set of molds by the material in mixing roll, it is down to naturally to dry after normal temperature until temperature and obtains solid brick in 17.5 hours; Slough mould, solid brick after drying is sent into kiln, first after the sintering temperature in kiln is risen to 550 DEG C from 0 DEG C by the time of 1.8-2 hour slowly, then in 1.4-1.6 hours, sintering temperature is risen to 1200 DEG C from 550 DEG C, within the time of 0.9-1.1 hour, sintering temperature is risen to 1450 DEG C from 1200 DEG C again, then stopping heating after the 19 hours time maintaining 1450 DEG C, after magnesia brick is progressively cooled to normal temperature, discharging obtains finished product.

Embodiment 3

To account for that total amount is sintering magnesium stone 45%, useless magnesia brick 15%, ferric oxide 6%, manganese ore 10%, clay 15%, sodium-chlor 1%, titanium oxide 1% are sent into pulverizer and pulverized as powder, then proportioning machine is sent into, in proportioning machine, add that to account for total amount be sulfite pulp 7% and appropriate water, then by all material even blend in proportioning machine simultaneously; Proportioning machine is sent into mixing roll, the temperature in mixing roll is brought up to 150 DEG C, stop mixing after mixing 16 minutes, shaping with sending into set of molds by the material in mixing roll, it is down to naturally to dry after normal temperature until temperature and obtains solid brick in 20 hours; Slough mould, solid brick after drying is sent into kiln, first after the sintering temperature in kiln is risen to 550 DEG C from 0 DEG C by the time of 1.8-2 hour slowly, then in 1.4-1.6 hours, sintering temperature is risen to 1200 DEG C from 550 DEG C, within the time of 0.9-1.1 hour, sintering temperature is risen to 1450 DEG C from 1200 DEG C again, then stopping heating after the 20 hours time maintaining 1450 DEG C, after magnesia brick is progressively cooled to normal temperature, discharging obtains finished product.

Claims

1. the production method of a glass furnace sintered magnesia brick, the raw material used comprises by weight ratio: sintering magnesium stone 40-45%, useless magnesia brick 15-20%, ferric oxide 6%, manganese ore 10%, clay 15%, sodium-chlor 1%, titanium oxide 1%, sulfite pulp 7%, water are appropriate, it is characterised in that:

(1) the sintering magnesium stone of formula ratio, useless magnesia brick, ferric oxide, manganese ore, clay, sodium-chlor, titanium oxide are sent into pulverizer and pulverized as powder, then proportioning machine is sent into, in proportioning machine, add sulfite pulp and the water of formula ratio, then by all material even blend in proportioning machine simultaneously;

(2) proportioning machine is sent into mixing roll, temperature in mixing roll is brought up to 130-150 DEG C, stop mixing after mixing 16-18 minute, shaping with sending into set of molds by the material in mixing roll, it is down to naturally to dry after normal temperature until temperature and within 15-20 hour, obtains solid brick;

2. the production method of glass furnace sintered magnesia brick according to claim 1, it is characterised in that: the muller described in step (1) is open mixing roll.

3. the production method of glass furnace sintered magnesia brick according to claim 1, it is characterised in that: the kiln described in step (3) is tunnel kiln.