Desulfurization device in drying kiln for smelting ferronickel by using RKEF method

A desulfurization device, drying kiln technology, applied in the direction of separation methods, transportation and packaging, chemical instruments and methods, etc., can solve the problems of poor flue gas purification effect, achieve the effect of improving purification effect, reducing load, and improving emission indicators

Pending Publication Date: 2022-04-12
扬州一川镍业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a desulfurization device in a drying kiln for smelting ferronickel by using the RKEF method, which solves the problem of poor purification effect of flue gas produced during drying of existing ores

Method used

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  • Desulfurization device in drying kiln for smelting ferronickel by using RKEF method
  • Desulfurization device in drying kiln for smelting ferronickel by using RKEF method
  • Desulfurization device in drying kiln for smelting ferronickel by using RKEF method

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Embodiment

[0025] Such as figure 1 and figure 2 As shown, a desulfurization device in a dry kiln for smelting ferronickel by the RKEF method proposed by an embodiment of the present invention includes a bottom plate 1, a cylinder 2 is arranged above the bottom plate 1, and both ends of the cylinder 2 pass through bearings. The kiln head cover 3 and the kiln tail cover 4 are connected in rotation. The surfaces of the kiln head cover 3 and the kiln tail cover 4 are fixed on the top of the bottom plate 1 through outriggers. The surface of the cylinder 2 is sleeved and fixed with a first gear 5. 1 is provided with a driving mechanism 6 for driving the rotation of the first gear 5, the top of the kiln tail cover 4 is installed and communicated with a smoke outlet pipe 7, the top of the bottom plate 1 is provided with a dust removal box 8, and one end of the smoke outlet pipe 7 is connected to the dust removal box 8. One side wall is connected, the dust removal box 8 is provided with a dust ...

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Abstract

The invention belongs to the technical field of ferronickel smelting, and particularly relates to an in-kiln desulfurization device of a drying kiln for smelting ferronickel through an RKEF method, the in-kiln desulfurization device comprises a bottom plate, a barrel is arranged above the bottom plate, and the two ends of the barrel are rotationally communicated with a kiln head cover and a kiln tail cover through bearings; the surface of the kiln head cover and the surface of the kiln tail cover are fixed to the top of the bottom plate through supporting legs. By arranging the smoke outlet pipe, the dust removal box and the dust removal mechanism, dust contained in smoke can be firstly filtered and accumulated in the dust removal box, and by arranging the dust discharge pipe and the valve, workers can collect and secondarily treat the dust, so that metal elements still existing in the dust are prevented from being wasted; by arranging the water tank, the water pump and the desulfurization mechanism, gas subjected to dust removal can be desulfurized and then filtered again, and then is conveyed into the chimney to be discharged, so that the load of subsequent purification is reduced, meanwhile, the purification effect can be obviously improved, and the emission index is qualitatively improved.

Description

technical field [0001] The invention relates to the technical field of ferronickel smelting, in particular to a desulfurization device in a dry kiln for smelting ferronickel by the RKEF method. Background technique [0002] At present, the processing methods of laterite nickel ore at home and abroad mainly include two smelting processes: fire method and wet method, of which there are four main types of fire method: sintering-blast furnace process, rotary kiln-electric furnace smelting process, Dominican Eagle Bridge shaft furnace-electric furnace Technology, Japanese Oeyama rotary kiln direct reduction method. Among them, the rotary kiln-electric furnace smelting process is the RKEF method, which is an advanced and mature technology for pyroprocessing laterite nickel ore, and is widely used. [0003] When drying ore in the existing drying kiln, a large amount of sulfur oxides and dust will be produced. These gases need to be purified before they can be directly discharged i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/56B01D53/78B01D53/50C22B23/02
Inventor 符號徐兴龙虞胜震
Owner 扬州一川镍业有限公司
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