CN2040096U

CN2040096U - Vertical flame glass melter

Info

Publication number: CN2040096U
Application number: CN 88216102
Authority: CN
Inventors: 邓泽高
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-11-08
Filing date: 1988-11-08
Publication date: 1989-06-28

Abstract

The utility model discloses a vertical flame glass melter, comprising a boiler body, a hollow furnace core, a trapezoidal settling pool, etc. A combustion chamber is positioned in the lower part of a hearth. Heating is implemented from the lower part of a glass batch. The whole smelting process is from preheating, high-temperature to melting again, forming an ideal processing. The glass melting liquid can be defoamed, clarified and homogenized automatically in the flow process. The utility model adopts gases or liquid fuels. The heat efficiency is enhanced by 10-25%, compared with common large-sized tank furnaces. The heat efficiency is enhanced by 30-40%, compared with mini tank furnaces. The vertical flame glass melter used for refining glass has the advantages of small energy consumption and good quality.

Description

Vertical flame glass melter

The invention belongs to flame-type, stereoscopic glass melting stove, it is particularly suitable for using gas or liquid burning melting glass.

The stove that is used for melting glass at present mainly contains two classes, and the one, pot furnace, the 2nd, tank furnace.Pot furnace is divided into remain silent two kinds of crucible and opening crucibles again.Flame did not directly contact with material, liquid when the crucible fusion cast glass was remained silent in utilization, but surrounding around the crucible wall frit was melted in crucible, was provided with horizontal working hole in order to get material; The opening crucible is when founding, and the high temperature gas medium direct and in the kiln of the frit in the crucible contacts, and accepts the radiant heat from flame and kiln top.Utilize the pot furnace fusion cast glass, owing to be indirect heating (or the heating of half direct type), thermo-efficiency is low, and founds the process poor continuity.Though tank furnace has solved the problem of working continuously,, it at the bottom of the pond the solid end because burner hearth is a pond shape, glass fusion is added on to be in the burner hearth piles up shape, flame can only pass through above frit, and its melting process also is from top to bottom, and promptly the upper temp of frit, liquid is higher than temperature of lower.The problem that when founding tinted shade, also has diathermanous difficulty.Therefore the thermosteresis of tank furnace is also very big, a large amount of heat energy scatters and disappears by the kiln wall and takes away (some easy volatile materials are also very easily lost) by useless flue gas, this has just caused general large tank furnace used thermo-efficiency only 25～30%, and the thermo-efficiency of small tank furnace is then low to about 10%.Glass homogenizing condition in the process of founding floor space relatively poor, tank furnace is also bigger simultaneously.

The objective of the invention is to propose the kiln of a kind of new texture of meter, according to this structure, glass flame in fusion process is upwards heated by the bottom of frit, it is formed in melting process by giving heat, high temperature to a kind of rational technical process of melting, thereby realize the thermo-efficiency of glass furnace is brought up to 40～50%, improve the homogenizing condition of glass in the process of founding simultaneously, obtain the purpose of the glassy product of better quality with assurance.

Solution of the present invention is to adopt a kind of vertical kiln with the turriform combustion chamber as smelting furnace, and glass batch fusion is contained between burner hearth and combustion chamber.Combustion chamber hollow is distributed with flame export all around.The flame of combustion chamber bottom can be through combustion chamber middle part by this outlet direct heating glass batch and make its fusing.Settling pond is arranged at the bottom of burner hearth and combustion chamber, realizes that automatically froth breaking, clarification are until homogenizing when utilizing the glass metal that makes molten at the bottom of the pond of ladder-type structure to flow through at the bottom of the pond.

Realization of the present invention be utilize steel plate to roll to be welded into furnace shell 5, body of heater inner close fitting furnace shell place builds one deck thermal insulation layer 6 by laying bricks or stones with the thermal insulation fire-resistant material; Combustion chamber 1, burner hearth 2, trapezoidal settling pond 3, combustion chamber 4 and discharge port 7 are all with being built into by resistant to elevated temperatures silica brick; Gas (liquid) imitation frosted glass is sprayed onto through burning spout 9 by nozzle and is the shape burning of loosing after returning on the sidewall A of combustion chamber 1, thermal-flame is through the center of combustion chamber 4 and be distributed in passage of flame heating around the combustion chamber and contain glass batch between burner hearth 2 and combustion chamber, waste heat is through admixtion import 8, get rid of and also give hot furnace charge simultaneously, combustion chamber hollow space and passage of flame are formed by the silica brick intersection system of building; Glass melt after the fusing then along in the accompanying drawing 2 direction of arrow and combustion chamber the middle part at the bottom of the combustion chamber flows into trapezoidal settling pond.When the glass metal of molten is flowed through trapezoidal seamed edge by froth breaking, clarify to homogenizing, after discharge port 7 send.

The present invention makes melting process form one by giving heat, high temperature again to the rational flow process of fusing owing to adopt the three-dimensional type of furnace, turriform combustion chamber, combustion chamber to place structures such as lower furnace portion, has improved the thermo-efficiency of smelting furnace greatly.Compare general raising thermo-efficiency 15～25% with large tank furnace used, more small-sized tank furnace improves 30～40%.Simultaneously because the glass of fusing position and molten is in the bottom of furnace charge, volatile substances do not run away by The book of Changes flue 10 and opening for feed in fusion process; Ladder structure is adopted in the bottom of settling pond 3, when glass melt is flowed through trapezoidal seamed edge with the thin layer diffusion and play by the effect of froth breaking, clarification and homogenizing, thereby than the quality of the easier assurance product of tank furnace.Therefore the present invention has less investment, and floor space is little, energy consumption is low, both can adopt gas such as Sweet natural gas to make fuel, also can adopt liquid such as fuel oil to make fuel.

Embodiment:

Concrete enforcement of the present invention: smelting furnace housing 5 adopts thickness to roll, be welded for the 10mm steel plate.The high 2.90m of body of heater, the diameter 0.40m of 2.02 meters of furnace bottom diameters, compound import 8, external diameter 1.32m, high 0.42m; Footpath, 2 ends of burner hearth 1.00m, high 1.20m; Footpath, 4 ends of combustion chamber 0.90m, high 0.90m, the height of each passage of flame is 6cm; The high B in combustion chamber is 0.41m; Trapezoidal settling pond 3, the high 6cm of every ladder; The outer end diameter 0.10m of fuel inlet 9, inner diameter 0.25m, glass metal outlet 7 highly is 0.22m.Thermal insulation layer 6 adopts siliceous light fire brick; Burner hearth, combustion chamber, combustion chamber, glass metal outlet etc. are all adopted can anti-1690 ℃～1710 ℃ pyritous silica bricks, and adopt siliceous phosphate mud to be built into.At first give hot melting furnace during melting, but rate of heating is unsuitable too fast, treats to add admixtion fusion by admixtion import 8 again when furnace temperature reaches 600 ℃ of left and right sides, till topped back combustion chamber.Continue to be heated to 800 ℃～again admixtion is filled it up with to fire door more than 1000 ℃ the time, enter normal smelting.The melting rate of present embodiment is about 4～4.5 tons/m ²24 hours, the natural gas consumption was about 200m ³/ ton glass.

Fig. 1 is the general structural representation of tank furnace; Among the figure 1 ' be combustion chamber, 2 ' be burner hearth (melting end), 7 ' be glass material liquid outlet.

Fig. 2 is a structural representation of the present invention.

Claims

1, a kind of glass melting stove, it is made of body of heater, burner hearth, combustion chamber etc., the body of heater that it is characterized in that it is vertical body of heater, the turriform combustion chamber that one hollow is arranged in its burner hearth, the combustion chamber is in the bottom and the heating glass admixtion from bottom to top of burner hearth, the settling pond of ladder structure is positioned at the bottom, combustion chamber, can play froth breaking, clarification and homogenization effect automatically when glass metal is flowed through its trapezoidal faces.

2, by the described glass-melting furnace of claim 1, the turriform combustion chamber of so-called hollow is characterized in that it is to utilize the resistant to elevated temperatures silica brick intersection system of building to form, each layer all has two square type passages to communicate with burner hearth, and the adjacent two layers passage is vertical layout so that equably spray to glass batch by in the middle part of the combustion chamber through this passage from the flame of combustion chamber.