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Roasting rotary furnace

A short kiln and roasting technology, which is applied in the improvement field of roasting rotary kiln structure, can solve the problems of low production efficiency and low nickel recovery rate, and achieve the effects of simple structure, convenient processing and production, and convenient use

Inactive Publication Date: 2012-11-28
NFC (SHENYANG) METALLURGICAL MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using this method to process low-grade nickel ore in the existing roasting kiln also has disadvantages such as low production efficiency and low recovery rate of nickel, and has not been promoted before.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0046] like figure 1 Shown is the structural schematic diagram of the roasting short kiln of the present invention. The present invention includes a kiln body 5, the base 2 of the kiln body 5 is provided with a supporting positioning mechanism 4 and a transmission mechanism 3, a hydraulic tipping mechanism 1 is provided under the base 2, and a solid discharge port 501 is provided at the discharge end 502 of the kiln body A kiln head cover 6 with a burner 602 is arranged on the side of the kiln body feed end 503 and the melt outlet 503 , and the side of the kiln head cover 6 is a feeding mechanism 7 .

[0047] The length of the kiln body 5 of the roasting short kiln of the present invention is 1.5m~15m, φ3~6m, and the thickness of the interior refractory brick layer 10 is 230~300mm; Figure 1-9 The roasting short kiln can use low-grade lateritic nickel-iron ore to prepare high-nickel concentrate. The equipment used is 2.3m in length and φ1.9m in length. The kiln body 5 is lin...

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Abstract

The invention relates to a roasting rotary furnace belonging to the technical field of non-ferrous metal metallurgy, in particular to a structural improvement on the roasting rotary furnace. The invention provides a small roasting rotary furnace. The roasting rotary furnace has the characteristics of spiral back-and-forth rapid uniform feeding, hydraulic tipping discharge mode, controllable reduction time, high thermal efficiency, wide scope of application and low cost. The roasting rotary furnace comprises a furnace body, wherein a supporting and positioning mechanism and a transmission mechanism are arranged on a base of the furnace body; and the roasting rotary furnace has the key structural points that a hydraulic tipping mechanism is arranged below the base, the discharge end of the furnace body is provided with a solid discharge port and a melt discharge port, the feed end of the furnace body is provided with a furnace head cover body with a burner, and a feed mechanism is arranged on the side part of the furnace head cover body.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal smelting process equipment, and more specifically relates to an improvement of a roasting rotary kiln structure. Background technique [0002] Roasting kiln (that is, roasting rotary kiln) is a thermal equipment for heat treatment of bulk or slurry materials. Roasting kiln plays an important role in the production of non-ferrous metals; this equipment is used to sinter ores, concentrates and intermediate products , roasting and other heat treatment. [0003] The existing roasting kiln is a hollow horizontal cylindrical equipment, the shell of the kiln body is made of rolled steel plates, slightly inclined to the horizontal plane (the inclination is 20-60mm per meter), rotates around the longitudinal axis, and the charge is along the axial direction With the function of the slope, the rotation of the kiln and the thrust of the material move forward. The length of the roasting kiln can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B7/12F27B7/20F27B7/26F27B7/32F27B7/33
Inventor 段玉新高志华张立秋刘利赵海波张影宋敏赵伟业姚晓峰
Owner NFC (SHENYANG) METALLURGICAL MACHINERY CO LTD
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