Presintering treatment process of glass batch and device thereof

A technology of glass batch materials and processing technology, applied in glass manufacturing equipment, glass production, manufacturing tools, etc., can solve the problems of increasing the difficulty of breaking, discontinuous production process, etc., to reduce energy consumption, increase single-line output, and increase heat the effect of transmission

Active Publication Date: 2012-01-18
GLASS TECH RES INST OF SHAHE CITY OF HEBEI PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent reduces the dust flying in the glass melting furnace, prolongs the life of refractory materials, prevents the clogging of the regenerator, and reduces the flying loss of batch materials, etc. The sintered block has a certain strength in the hot state of 1000 ℃, so it increases the difficulty of crushing; at the same time, after the crushing process is added, it also causes discontinuity in the production process

Method used

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  • Presintering treatment process of glass batch and device thereof
  • Presintering treatment process of glass batch and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 As shown, a device for decomposing glass batch materials outside a carbonate melting furnace - a rotary heating furnace, which includes a feeding device 2, a rotary heating cylinder 3 with an inclination angle of 3 to 12° from the horizontal, and a kiln head sealing device 8 , kiln tail sealing device 11 and burner 4;

[0026] The upper end of the feeding device 2 is provided with a storage bin 1, and the lower end is connected with a kiln tail sealing device 11;

[0027] The high end and the low end of the rotary heating cylinder 3 are respectively sealed and connected with the kiln tail sealing device 11 and the kiln head sealing device 8, and one end of the kiln tail sealing device 11 is connected with the inlet of the high-temperature induced draft fan 12, and the kiln head The sealing device 8 is provided with a flue gas inlet 7 and a spherical pellet outlet 9;

[0028] The burner 4 extends into the rotary heating cylinder 3 through the kiln head se...

Embodiment 2

[0037] The difference with embodiment 1 is:

[0038] (1) Dissolve water glass accounting for 1.5wt% of the glass batch material in water accounting for 8wt.% of the glass batch material, then mix the above water glass solution into the glass batch material, mix well, and use a semicircular concave surface on the surface Press it into spherical pellets of 5~18mm by pair of rollers.

[0039] (2) Put the spherical pellets into the rotary heating furnace and pre-fire at 1180~1250°C, and the sintered and compacted spherical pellets are fed into the glass melting furnace from the outlet of the rotary heating furnace.

[0040] Since the pellets compressed into a spherical shape are 5-18mm in size, the pre-calcination and decomposition time in the rotary heating cylinder is about 1 hour.

[0041] Water glass described in the present embodiment can also be replaced with methyl cellulose.

Embodiment 3

[0043] The difference from Example 1 is:

[0044] (1) Dissolve water glass that accounts for 3wt.% of the glass batch in hot water (80-100°C) that accounts for 7wt.% of the glass batch, then mix the above water glass solution into the glass batch, mix well, It is pressed into spherical pellets of 8~25mm using a pair of rollers with a semicircular concave surface.

[0045] (2) Add the spherical pellets into the rotary heating furnace, pre-fire at 1020~1150°C, and add the sintered and densified spherical pellets to the glass melting furnace from the outlet of the rotary heating furnace.

[0046] Since the pellets pressed into spherical shape are 8~25mm, the pre-fired decomposition time in the rotary heating cylinder is about 1.5 hours. In this example, three sets of the devices described in Example 1 are used to simultaneously pre-fire the glass batch.

[0047] The water glass described in this embodiment can also be replaced by methyl cellulose.

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Abstract

The invention discloses a presintering treatment process of a glass batch and a device thereof, and the process is performed according to the following steps: (1) adding 0.5 wt%-3 wt% of binders and 6 wt%-8 wt% of water into a glass batch, well mixing, pressing into spherical particle materials with a diameter of 3-25 mm; (2) adding the spherical particle materials into a rotary heating furnace, preheating at 1020-1250 DEG C for 0.5-2 hours, adding the sintered densified spherical particle materials into a glass melting furnace from the rotary heating furnace. According to the invention, the decomposition of carbonates in the glass batch is performed outside the glass melting furnace, which greatly reduces the gas content in the glass batch, effectively increases the heat transfer, shortens the time for glass clarification and homogenization, that is, increases the single-line yield and reduces the energy consumption without the enlargement of the glass melting furnace area; the invention can realize the increase of the melting amount by 20%-30% without the enlargement of a current melting furnace scale.

Description

technical field [0001] The invention relates to a flat glass melting technology, in particular to a glass batch pre-burning treatment process and equipment thereof. Background technique [0002] Powdery batch materials are used in flat glass. This method is to crush and sieve various raw materials to a certain particle size, and then weigh and mix them to make loose powder materials. This kind of loose material is prone to stratification and powder flying in the process of transportation and storage, and the batch material just entered the kiln is easily blown up by the flame and taken out of the furnace, which not only changes the composition of the glass, but also affects the The large wall of the kiln and the regenerator cause erosion and pollute the environment. [0003] The loose form of the batch material is put into the furnace, and because of its low bulk density, the heating efficiency of the flame on the batch material is low. In addition, the batch material is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B1/00C03B1/02C03B3/02
CPCY02P40/50
Inventor 程金树何峰李诗文王文田刘楷周宇
Owner GLASS TECH RES INST OF SHAHE CITY OF HEBEI PROVINCE
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