CN2583100Y

CN2583100Y - Float glass melting kiln cooling part 90 degree replication structure

Info

Publication number: CN2583100Y
Application number: CN 02279911
Authority: CN
Inventors: 杨志强
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2002-11-26
Filing date: 2002-11-26
Publication date: 2003-10-29
Anticipated expiration: 2012-11-26

Abstract

The utility model relates to the improved design of a float glass melting kiln cooling part. The cooling part is designed into three stages under the condition, ensuring that the area of the cooling part is matched with the area of a melting part; the dimensions can be reduced stage by stage, forming 90 DEG reflection form. The structure can ensure that glass flow maintains the symmetry of temperature distribution of both sides of the outlet position and the symmetry of corresponding distributions. Because the devices of the melting system is utilized, the cost is saved.

Description

Float glass smelting kiln cooling end 90 degree replicating structures

Technical field

The utility model belongs to the float glass process technical field, is specifically related to a kind of structure design of melting furnaces cooling end.

Background technology

Flat glass production process mainly is divided into two class technology: traditional pulling method forming technique and up-to-date horizontally disposed float glass process forming technique.

In traditional pulling method forming technique, relate to the system that founds (comprising admixtion system, fuel system, melting furnaces, accumulation of heat fume exhaust system and residual neat recovering system) and the formation system (comprising drawing basin, vertical drawing annealing furnace, cutting system) of glass.The hand labor intensity height of pulling method moulding, production scale is medium, quality product is low, and level of automation is low.

In the advanced float shaping technology, the glass smelting system that relates to and traditional pulling method are basic identical, but formation system difference fully, and it relates to horizontally disposed molten tin bath float glass process formation system, horizontal annealing furnace and horizontal cutting system.Because its tin groove forming system has the Forming Quality height, the big and high advantage of level of automation of industrial scale, quality product height, cost are low, and hand labor intensity is low.The melting end of its glass melter and the structure of cooling end are as shown in Figure 1.

Before the latter stage eighties, most of glass production lines that China builds are the pulling method moulding process, and these production lines can't be competed with float glass process, are faced with the demand of eliminating and transforming to floating process.Change in the process of float glass process production line in the pulling method process of glass, vertical moulding, annealing and cutting partly need change the layout of float shaping, annealing and the cutting of level into, because the restriction in original place, most factories can't be float shaping, annealing and cutting system layout point-blank, can turn back by melting furnaces exit end realization 90 degree, be to make full use of original system's facility of founding, save the key point of production system total cost.

Summary of the invention

The purpose of this utility model is the melting furnaces cooling end in the float glass process is improved, and proposes the structure design that 90 degree are turned back, so that can make full use of original system's facility of founding, reduces the production system cost.

The 90 degree replicating structures designs of the float glass smelting kiln cooling end that the utility model proposes under the area matched prerequisite in the vertical section area of guaranteeing cooling end and melting end vertical section, are designed to three grades to cooling end, and size is dwindled step by step, and becomes 90 to spend the form of turning back.Its vertical section structure as shown in Figure 2.

The melting furnaces cooling end structure of the utility model design, in the first step near the card neck place, its width W 1 can be the 160-180% of card neck width W 0, and length L 1 is the 90-100% of width W 1; Second stage width W 2 is the 70-75% of first step width W 1, and its length L 2 is the 110-120% of width W 2; The third stage becomes 90 degree to turn back with the second stage, third stage width (horizontal direction) W3 is the 65-70% of second stage width (vertical direction) W2, and its length (vertical direction) L3 is the 75-100% of W3; The inboard, the place of turning back of the second stage and the third stage is provided with an adjusting barricade, and the width of this barricade (horizontal direction) W4 is the 25-30% of third stage width W 3, and the length L 4 of barricade is the 75-100% of W4.

Adopt cooling end 90 to spend the original pulling method glass production line of retrofit scheme of turning back and to keep the facility that original major part is founded system, greatly saved capital construction and facility cost.

The structural plan of common float glass smelting kiln as shown in Figure 1.The glass metal that melts enters cooling end from melting end, enters tin groove forming by runner.Because melting furnaces are monosymmetric along medullary ray,, guaranteed the moulding process after glass metal enters molten tin bath so the temperature distribution and the composition profiles that flow at medullary ray both sides glass metal also are symmetrically.

The melting furnaces cooling end of the utility model design is the structure that 90 degree are turned back, and in this structure, dash area is of a size of about 1/4th of the path of turning back for regulating barricade.The barricade of turning back has delayed the flow process and the flow velocity of the inboard of glass metal stream, increased inboard cooling intensity, be offset the mobile medullary ray that enters runner, the temperature of glass metal stream and composition degree of uniformity and inner glass liquid temp and composition degree of uniformity have obtained having guaranteed to enter the forming operation of molten tin bath synchronously under the adjusting of barricade outside making.

Description of drawings

Fig. 1 is the melting end of common float glass smelting kiln of straight line and the structural diagrams of cooling end.

Fig. 2 is the utility model cooling end structural diagrams.

Number in the figure: 1 is the melting end of glass melter, and 2 is card neck, and 3 is cooling end, and 4 is exit passageway, and 5 is the first step zone of the utility model cooling end, and 6 is the zone, the second stage of cooling end, and 7 is the third stage zone of cooling end, and 8 is the barricade that 90 degree are turned back and located.

Embodiment

The melting furnaces scale is generally 200 tons to 400 tons of daily outputs, along with the variation of melting furnaces scale, under the prerequisite of the area that keeps the melting furnaces cooling end and the ratio of the area of melting end, specifically can adjust according to the ratio of Fig. 2.

Regulate barricade 8 and can adopt the refractory materials identical with other cooling end to build by laying bricks or stones, for the convenience of structure, regulate the form that barricade can be designed as the outer space, steel construction directly supports the pool wall refractory materials.To produce 300 tons float glass smelting kiln daily is example, and the structure design of its cooling end is as follows: the width W 0=4.8m of card neck 2, the width W 1=8.2m in first step zone 5, length L 1=8m, the width W 2=6.0m in zone, the second stage 6, length L 2=7m; The width W 3=4.0m in third stage zone 7, length L 3=3.0m, the width W 4=1m of barricade 8, L4=1m.

These cooling end 90 degree replicating structures can guarantee that glass metal stream is after 90 degree are turned back, still the temperature distribution symmetry and the corresponding composition profiles symmetry that keep both sides in the exit, corrected generally speaking because inner glass liquid flows apart from short temperature height, glass metal stream in the outside is apart from the low asymmetry problem of length temperature.

Claims

1, a kind of float glass smelting kiln cooling end 90 degree replicating structures is characterized in that under the area matched prerequisite in the vertical section area of guaranteeing cooling end and melting end vertical section cooling end being designed to three grades, and size is dwindled step by step, and becomes 90 to spend the form of turning back.

2, cooling end 90 degree replicating structures according to claim 1 is characterized in that its width W 1 can be the 160-180% of card neck width W 0 in the first step near the card neck place, and length L 1 is the 90-100% of width W 1; Second stage width W 2 is the 70-75% of first step width W 1, and its length L 2 is the 110-120% of width W 2; The third stage becomes 90 degree to turn back with the second stage, third stage width W 3 is the 65-70% of second stage width W 2, and its length L 3 is the 75-100% of W3; The inboard, the place of turning back of the second stage and the third stage is provided with an adjusting barricade, and the width W 4 of this barricade is the 25-30% of third stage width W 3, and the length L 4 of barricade is the 75-100% of W4.