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Comprehensive utilization technique and system for soft-burned dolomite fines

A technology for lightly burning dolomite and fine powder, applied in the field of technology, can solve problems such as environmental pollution and waste of limited resources, and achieve the effects of reducing investment and energy consumption, saving resources, and ensuring uniformity and smoothness.

Inactive Publication Date: 2008-04-30
KUNMING IRON & STEEL GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only waste limited resources, but also cause environmental pollution

Method used

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  • Comprehensive utilization technique and system for soft-burned dolomite fines
  • Comprehensive utilization technique and system for soft-burned dolomite fines
  • Comprehensive utilization technique and system for soft-burned dolomite fines

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] The conveyor 1 below the discharge port of the shaft kiln is connected with the hoist 2 through a slide pipe, and the hoist 2 is a chain hoist, and the chain 21 inside is provided with hoppers 22 at intervals, as shown in Fig. 3 and Fig. 4 , and the hoist 2 exits The material opening is connected with the three-fork feeding pipe 31 and the tube screen 4 with the flap 3 on it, the upper end of the flap 3 is suspended, and the lower end is connected with the pipe wall through the hinge shaft 32, and the other end of the hinge shaft 32 is extended to the outside of the pipe and connected with the handle 33 , the operating handle 33 can make the turning plate 3 rotate around the hinge shaft 32, as shown in Fig. 5 and Fig. Link to each other with the powder mixing bin 7 through the chute, the bin wall above the outlet of the powder mixing bin 7 is provided with a min...

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Abstract

The invention provides a technique for integrally utilizing caustic-burned dolomite flour, and a relative system, which can directly press and shape the dolomite powder calcined from shaft furnace, the de-dust smoke generated in the calcinations, and flour screened from the dolomite, to be used in steel production, thereby fully utilizing dolomite, save material, and effectively prevent environment pollution. And the invention utilizes the character that caustic-burned dolomite flour and relative flour are easy to be separated, to arrange a tube screen on a Y-shape blanking tube, to secondary reclaim and utilize the flour generated in transmission palletizing process, and reduce the investment and energy consumption of screen device. And the invention arranges a micro external vibrator at the outlet of flour chamber to blank uniformly and successfully, and uniformly feed the flour of following helical conveyer into pelletizer to confirm the shaping quality of flour.

Description

technical field [0001] The invention relates to a process method and system, in particular to a process method and system for comprehensive utilization of light-burned dolomite fine powder. Background technique [0002] Light-burned dolomite is an indispensable auxiliary material in steelmaking production. Using it can further remove impurities in molten steel, and ultimately improve steel quality, which is beneficial to slag splashing, furnace protection and furnace life. The existing light-burned dolomite process is to mix raw dolomite with coke and send it to a shaft kiln for calcination. After the calcined dolomite is sieved, the dolomite blocks on the sieve are sent to steelmaking, and the under-sieve <10mm The dolomite powder and flue gas dedusting powder after calcined dolomite are used sporadically, and the rest are basically used for slagging treatment. Not only waste limited resources, but also cause environmental pollution. Therefore, it is necessary to impro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/10
CPCY02P40/40
Inventor 杨增福辉士昌孔凡景
Owner KUNMING IRON & STEEL GRP CO LTD
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