CN112919775A

CN112919775A - Stepped kiln pool of flat glass transverse flame melting kiln

Info

Publication number: CN112919775A
Application number: CN202110449739.0A
Authority: CN
Inventors: 杨镇远; 杨京安; 孙仕忠
Original assignee: China Building Material Tongcheng New Material Co ltd
Current assignee: China Building Material Tongcheng New Material Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-06-08
Anticipated expiration: 2041-04-25
Also published as: CN112919775B

Abstract

The invention discloses a stepped kiln pool of a flat glass transverse flame melting kiln, which belongs to the technical field of glass production equipment, wherein a feeding pool, a melting part, a clarifying part, a clamping neck and a working part are sequentially arranged from a feeding end to a discharging end of the kiln pool; the technical scheme of the invention is simple and easy to implement, and can be carried out when a new production line melting furnace is designed, and can also be technically improved when the melting furnace is subjected to cold repair.

Description

Stepped kiln pool of flat glass transverse flame melting kiln

Technical Field

The invention belongs to the technical field of glass production equipment, and particularly relates to a stepped kiln pool of a flat glass transverse flame melting kiln.

Background

The service life of the flat glass transverse flame melting furnace is mainly determined by two factors, namely the degree of corrosion of the wall of a melting part and the degree of blockage of a regenerator, after the refractory material configuration and the quality are determined and under the conditions of stable melting operation level and pulling amount. Although the quality of the refractory material is greatly improved along with the improvement of science and technology, the service life of the melting furnace cannot be effectively prolonged, and the applicant analyzes the following by combining the production conditions for many years:

in the prior art, a kiln pool structure of a flat glass transverse flame melting furnace mainly comprises a feeding pool, a melting part, a clarifying part, a clamping neck and a working part (cooling part) from front to back, the depth of the kiln pool is the same from front to back, the reaction of silicate is very violent, and a large amount of CO is generated in the section from the feeding pool to the hot spot of the melting part₂Gas escape causes the porosity sintering stockpile (boiling) too high and crosses the pool wall brick, this silicate reactant that crosses the pool wall not only can aggravate and erode pool wall brick upper edge, and the in-process that can erode pool wall brick upper edge at the aggravation takes away the little retaining brick in lower clearance that the pool wall brick upper edge was placed with the form of scouring, make on the one hand bring impurity into in the glass melt, influence product quality, on the other hand makes external cold air enter into the kiln pool through the clearance that does not have little retaining brick, reduce the interior temperature of kiln, lead to needing to increase the fuel volume in order to keep the furnace temperature, and simultaneously, along with the erosion aggravation, the life-span of melting furnace reduces greatly.

Disclosure of Invention

The invention aims to provide a stepped kiln pool of a flat glass transverse flame melting kiln, which solves the problems that in the prior art, silicate reaction is very violent and a large amount of CO is generated at a section from a feeding pool to a hot spot of a melting part of glass batch₂The gas escape causes the porous sintering material pile to be too high to overflow the wall bricks of the furnace, which causes the problems of increasing energy consumption and shortening the service life of the furnace.

The purpose of the invention can be realized by the following technical scheme:

a stepped kiln pool of a flat glass transverse flame melting kiln comprises a feeding pool, wherein a melting part, a clarifying part, a neck and a working part are sequentially arranged on one side of the feeding pool, a plurality of pairs of small furnaces are respectively arranged on two sides of the pool wall of the melting part, and regenerative chambers are adaptively arranged on the outer sides of the small furnaces;

the tank wall of melting portion is higher than the tank wall height of throwing the material pond and the clarification portion, the porous fritting material that the glass batch is thrown the material pond and is produced to the violent reaction of this section of melting portion hot spot, because of melting portion tank wall is higher, avoid the fritting material to overflow the tank wall brick and corrode the little retaining brick in lower clearance on its upper edge, wash the little retaining brick in lower clearance and take away the little retaining brick in lower clearance simultaneously, reduce bringing in of impurity, alleviate the loss of melting furnace structure spare, promote the life of melting furnace, avoid simultaneously that the little retaining brick in lower clearance is corroded to fall into in the glass liquid after leading to external cold air to get into the kiln, increase fuel consumption.

Preferably, the wall of the melting part is 50-120mm higher than that of the feeding tank.

Preferably, the bath wall of the melting section is 50-120mm higher than the bath wall of the fining section.

Preferably, one end of the side wall of the melting part close to the refining part is 1m away from the center of the last pair of small furnaces.

The invention has the beneficial effects that:

1. the height of the tank wall of the melting part of the invention is higher than that of the charging tank, the charging is carried out at normal charging thickness, and the porous sintering material generated by the violent reaction from the charging tank to the hot spot of the melting part can not overflow the bricks on the tank wall and be taken away, so that the condition of small gaps and bricks can not occur, thereby reducing the cold air entering the kiln. According to years of production experience and test results of the applicant, the invention saves 2% of fuel compared with a horizontal flame melting furnace with the same scale after being implemented. The fuel consumption is reduced, and the pollution of waste gas such as sulfide, nitrogen oxide and the like to the environment is correspondingly reduced after the heat energy utilization rate is improved.

2. After the invention is used, the corrosion of silicate reactant to the upper edge of the tank wall can be reduced, and the inclusion in the glass is reduced, thereby improving the quality of the glass and prolonging the service life of the furnace by about 2 years.

3. The technical scheme of the invention is simple and easy to implement, and can be carried out when a new production line melting furnace is designed, and can also be technically improved when the melting furnace is subjected to cold repair.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a stepped furnace tank of a flat glass transverse flame melting furnace according to the present invention.

In the figure:

1. a feeding pool; 2. a melting section; 3. a clarification section; 4. clamping a neck; 5. a working part; 6. a regenerator; 7. and (5) small furnaces.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the stepped kiln pool of the flat glass transverse flame melting kiln comprises a feeding pool 1, wherein a melting part 2, a clarifying part 3, a neck 4 and a working part 5 are sequentially arranged on one side of the feeding pool 1, for an air combustion-supporting melting kiln, a plurality of pairs of small furnaces 7 and corresponding heat storage pools 6 are respectively arranged on two sides of the pool wall of the melting part 2, and for a total oxygen combustion melting kiln, a plurality of pairs of total oxygen combustion spray guns are arranged on two sides of the pool wall of the melting part 2.

The tank wall of the melting part 2 is higher than the tank wall of the feeding tank and the clarifying part 3, the porous sintering material is generated by the glass batch in the section from the feeding tank 1 to the hot spot 2 of the melting part through violent reaction, so that the volume of the part is increased, the tank wall of the melting part 2 is designed to be higher, the problem that the sintering material overflows through the tank wall bricks to corrode small blocking bricks at the lower gap of the upper edge is avoided, the introduction of impurities is reduced, the quality of products is improved, the loss of structural members of the melting furnace is reduced, the service life of the melting furnace is prolonged, on the other hand, the small blocking bricks are prevented from being washed by the porous sintering material and introduced into molten glass, gaps are exposed, so that outside cold air enters the furnace, the heat loss is reduced, the fuel consumption is reduced, the production cost is directly reduced, the reduction of fuel further brings corresponding reduction benefits of waste gas discharge, and.

The tank wall of the melting part 2 is 50-120mm higher than that of the feeding tank 1, and the tank wall of the melting part 2 is 50-120mm higher than that of the clarifying part 3; the applicant verifies through years of tests that the height of the tank wall of the melting part 2 is increased, so that the porous sintering material does not overflow the tank wall.

One end of the side wall of the melting part 2 close to the clarifying part 3 is 1m away from the center of the last pair of small furnaces 7; obviously, for melting furnaces with different production capacities, the number of the small furnaces 7 is different, the distance from one end of the side wall of the melting part 2 close to the clarifying part 3 to the center of the small furnace 7 can be correspondingly adjusted, and the scheme is a better parameter of the ultra-white rolled glass melting furnace with the daily melting amount of 1200 tons in a certain company in China.

The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.

Claims

1. The stepped kiln pool of the flat glass transverse flame melting kiln is characterized by comprising a feeding pool (1), wherein one side of the feeding pool (1) is sequentially provided with a melting part (2), a clarifying part (3), a neck (4) and a working part (5), a plurality of pairs of small furnaces (7) are arranged on two sides of the pool wall of the melting part (2), and the outer sides of the small furnaces (7) are provided with heat storage chambers (6) in a matching manner;

the tank wall of the melting part (2) is higher than the tank wall of the feeding tank (1) and the clarifying part (3).

2. The stepped shaft hearth of a flat glass transverse flame melter according to claim 1, characterized in that the wall of the melting section (2) is 50-120mm higher than the wall of the feed tank (1).

3. The stepped shaft hearth of a flat glass cross-flame melter according to claim 1, characterized in that the wall of the melting section (2) is 50-120mm higher than the wall of the fining section (3).

4. The stepped shaft hearth of a flat glass transverse flame melter according to claim 1, characterized in that the end of the hearth wall of the melting section (2) near the fining section is 1m from the center of the end pair of the small furnaces (7).