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High-corrosion-resistance smelting furnace for byproduct industrial salt

A corrosion-resistant, industrial salt technology, applied in the field of by-product industrial salt melting furnaces, can solve problems such as shortened service life, corrosion, and wall sticking, and achieve the effects of improving corrosion resistance, ensuring treatment effects, and increasing service life

Inactive Publication Date: 2017-05-03
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using the existing rotary kiln, vertical incinerator, horizontal incinerator, box furnace, fluidized bed incinerator to carbonize the inorganic salt, due to the inorganic salt in the molten state and the high temperature furnace wall In direct contact, there will be a phenomenon of "sticking to the wall", which will not only affect the normal carbonization of inorganic salts, but also shorten the service life of the equipment
[0006] More importantly, because the existing melting furnace uses ordinary refractory bricks, it is very unsuitable for the treatment of by-product industrial salt, especially the problem of serious corrosion, resulting in a very short service life of the melting furnace in the production of by-product industrial salt

Method used

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  • High-corrosion-resistance smelting furnace for byproduct industrial salt

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, a strong corrosion-resistant by-product industrial salt melting furnace includes a furnace chamber body 1 surrounded by a plurality of furnace wall surfaces, and the furnace chamber body 1 has an upper part defined as a heating chamber 2 and defined as a melting chamber The lower part of the cavity 3, the furnace cavity body 1 is provided with a feeding port 4, and the downstream of the feeding port 4 is provided with an inclined feeding channel 5 for guiding the solid by-product industrial salt to the inside of the melting chamber 3, so The furnace cavity body is provided with a dome 6 having the same inclination angle as that of the feed channel 5 above the feed channel 5, and a plurality of slag outlets 7 are provided on the lower side wall of the melting chamber 3. The slag discharge port 7 is an elongated opening, and the aspect ratio of the slag discharge port 7 is 3:1.

[0033] In this embodiment, the refractory bricks of the heating c...

Embodiment 2

[0037] The structure of this embodiment is the same as that of Embodiment 1, the difference is that:

[0038] The refractory bricks of the heating chamber and the dome are all built with mullite bricks, and the Al in the mullite bricks2 o 3 The weight percentage is 75%, SiO 2 The weight percentage is 20%, Fe 2 o 3 The weight percentage is 0.5%, and the balance is other unavoidable ingredients (CaO).

[0039] The refractory bricks of the melting chamber and the feed channel are all built with dolomite bricks, and the dolomite bricks are SiO 2 13.49% by weight, Al 2 o 3 The weight percentage is 0.71%, Fe 2 o 3 The weight percentage of CaO is 4.2%, the weight percentage of CaO is 42.7%, and the weight percentage of MgO is 38.9%.

[0040] After the by-product sodium chloride is melt-processed, the content of substances therein is detected, as shown in the following table:

[0041] project unit content project unit content NaCl ％ 99.70 Si ％ 0...

Embodiment 3

[0044] The structure of this embodiment is the same as that of Embodiment 1, the difference is that:

[0045] The refractory bricks of the heating chamber and the roof are built with clay bricks, and the Al in the clay bricks 2 o 3 Not less than 45% by weight, Fe 2 o 3 The weight percentage is not more than 1.8%, and the balance is other unavoidable components (CaO, SiO 2 ).

[0046] The refractory bricks of the melting chamber and the feed channel are built with fused zirconia corundum bricks, and ZrO in the fused zirconia corundum bricks 2 The weight percentage is 40%, SiO 2 The weight percentage is 16%, Na 2 1.4% by weight of O, Fe 2 o 3 、TiO 2 , CaO, and MgO have a total weight percentage of 3%, and the balance is AL2O3.

[0047] After the by-product sodium chloride is melt-processed, the content of substances therein is detected, as shown in the following table:

[0048] project unit content project unit content NaCl ％ 99.84 Si ％ ...

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Abstract

A high-corrosion-resistance smelting furnace for byproduct industrial salt comprises a furnace chamber body which is encircled by a plurality of furnace wall surfaces, wherein the furnace chamber body is provided with an upper part which is defined as a heating chamber, and a lower part which is defined as a smelting chamber; a feeding port is formed in the furnace chamber body, and an inclined feeding channel for guiding solid byproduct industrial salt into the smelting chamber is arranged at the downstream of the feeding port; a crown which has the same inclination angle as the feeding channel is arranged above the feeding channel in the furnace chamber body; refractory bricks of a heating chamber and the crown are one or some of magnesia bricks, fused-cast zircon-corundum bricks, dolomite bricks, clay bricks, silica bricks, magnesia-calcium bricks, high-alumina bricks, mullite bricks, andalusite bricks and silicon carbide refractory bricks; the refractory bricks of the smelting chamber and the feeding channel are one or some of magnesia bricks, fused-cast zircon-corundum bricks and dolomite bricks. With the adoption of the high-corrosion-resistance smelting furnace of the byproduct industrial salt, the corrosion resistance of positions, in contact with the byproduct industrial salt, of the smelting chamber, the feeding channel, etc., can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of by-product industrial salt treatment equipment, in particular to a strong corrosion-resistant by-product industrial salt melting furnace. Background technique [0002] At present, the by-product industrial salt contains a small amount of organic matter, which is difficult to be effectively treated and utilized, and cannot be directly used as a raw material for downstream products. Most manufacturers can only stockpile it or send it to a solid waste treatment center for processing. At present, the treatment cost of the solid waste treatment center is as high as 3,000-4,000 yuan / t, which is unbearable for enterprises, and the landfill is mainly treated with anti-corrosion and anti-seepage treatment before landfilling. This treatment method not only occupies land, but is also a great waste of resources, and there is a potential risk of posing a huge threat to the environment. Once the anti-corrosion and ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/08F27D1/04
Inventor 孙国庆高技峰李志清宋吉奎凌晓光杨尚祚马华青侯永生孙国冉李盼盼邹宗加王杜瑞张文华
Owner SHANDONG WEIFANG RAINBOW CHEM