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Side type powder feeding top blowing furnace and treatment method thereof

A top-blown furnace and powder technology, which is applied to the side-type top-blown powder feeding furnace and its processing field, can solve the problems of endangering the health of operators, large transportation flying losses, poor operating environment, etc., to avoid flying losses, Streamline the shipping process and improve the effect of the operating environment

Pending Publication Date: 2021-10-26
YUNNAN TIN CO LTD TIN BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention provides a side-type powder-feeding top-blowing furnace and its treatment method, which can solve the problems of large transportation flying loss, large amount of returned materials, and poor operating environment in the tin smelting process of smelting powdery tin materials. , hazards to the health of operators, etc.

Method used

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  • Side type powder feeding top blowing furnace and treatment method thereof

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Embodiment 1

[0033] Embodiment 1 of the present invention provides a kind of processing method of side-type powder-feeding material top-blowing furnace, and described side-type powder-feeding material top-blowing furnace is such as figure 1 As shown, the working process of the side-type top-blown powder-feeding furnace is as follows:

[0034] In the tin smelting system, the powdered tin calcined sand produced by the desulfurization of the fluidized roaster Sn 35wt.%, S1.1wt.%, As 0.8wt.%, H 2 O≤3wt.%, powdered tin fume produced by fuming and enriching tin ore and tin slag in fuming furnace Sn 45wt.%, Pb 0.2wt.%, S 0.9wt.%, As 1.5wt.%, Fe 2wt.%, H 2 O≤4.5wt.%, powdered tin fume collected from waste heat boiler and electric dust collector of flue gas treatment system during top blowing furnace smelting Sn 38wt.%, Pb1.0wt.%, S 0.75wt.%, As 1.8wt.%, Fe 3wt.%, H 2 O≤4.5wt.%, powdered tin materials and pulverized coal from different sources in several tin smelters, are sent into the powdery m...

Embodiment 2

[0038] Embodiment 2 of the present invention provides a kind of processing method of side-type top-blown powder-feeding furnace, and working procedure is as follows:

[0039] In the tin smelting system, the powdered tin calcined sand produced by the desulfurization of the fluidized roaster Sn 38wt.%, S0.86wt.%, As 1.0wt.%, H 2 O ≤ 2wt.%, powdered tin fume produced by fuming and enriching tin ore and tin slag in fuming furnace Sn 42wt.%, Pb 0.5wt.%, S 0.8wt.%, As 2.0wt.%, Fe 3.5wt.%, H 2 O≤4.0wt.%, powdered tin fume collected from waste heat boiler and electric precipitator of flue gas treatment system during top blowing furnace smelting Sn40wt.%, Pb 2.1wt.%, S 0.68wt.%, As 1.5 wt.%, Fe 3.6wt.%, H 2 O≤5wt.%, powdery tin materials and pulverized coal from different sources in several tin smelters are simultaneously sent to the powdery material collection bin 8 through the corresponding quantitative pneumatic conveying device to complete the mixing, wherein the powdery tin is b...

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Abstract

The invention discloses a side type powder feeding top blowing furnace and a treatment method thereof. The side type powder feeding top blowing furnace comprises a cylindrical furnace body, powdery material feeding nozzles, a furnace top sample rod, a top blowing furnace spray gun, a belt conveying feeding port, a flow dividing conveying pipe, a quantitative pneumatic conveying device, a powdery material collecting bin, powdery material collecting bin feeding ports and a furnace top cover. The powdery material feeding nozzles are symmetrically arranged on the periphery of the furnace wall of the cylindrical furnace body and located on the same horizontal plane, each powdery material feeding nozzle and the furnace wall form an angle of 45 degrees, and the centers of the nozzles directly face the center line of the furnace bottom. The problems that in the tin smelting process, when powdery tin materials are smelted, the transportation flying loss is large, the material returning quantity is large, the operation environment is poor, and the body health of operators is harmed can be solved.

Description

technical field [0001] The invention relates to the technical field of pyromelting crude tin, more specifically to a side-type powder-feeding top-blowing furnace and a processing method thereof. Background technique [0002] Large-scale tin smelters generally choose top-blown furnaces with high hearth capacity as tin smelting equipment. The tin-containing materials processed mainly include tin concentrate, tin calcine after roasting and desulfurization of arsenic, fuming furnace fuming and volatilizing low-tin materials The powdery tin fumes obtained in the end, the powdery tin fumes captured in the tail gas system during the smelting process of the top blowing furnace, etc. Among them, calcined sand and soot materials have finer particle size and lower water content, and are prone to flying loss during transfer and feeding. These materials with small particle size and low water content can be collectively referred to as powdered tin materials, and the percentage of such ma...

Claims

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Application Information

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IPC IPC(8): C22B25/02
CPCC22B25/02Y02P10/20
Inventor 宋兴诚唐都作张璋袁海滨刘庆东徐万立张驰王建伟陈云张瑜梅
Owner YUNNAN TIN CO LTD TIN BRANCH
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