Stone coal vanadium ore oxidizing, crystal breaking, roasting and vanadium extracting comprehensive utilization system

A kind of stone coal vanadium and crystal breaking technology, applied in the fields of silicon oxide, silicon dioxide, chemical industry, etc., can solve the problems of low processing capacity, high operating cost, environmental pollution and so on

Active Publication Date: 2020-11-03
上海逢石科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of complex process flow, low processing capacity, high operating cost and serious environmental pollution in the existing technical process of extracting vanad

Method used

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  • Stone coal vanadium ore oxidizing, crystal breaking, roasting and vanadium extracting comprehensive utilization system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0066] Example 1

[0067] Stone coal vanadium ore roasting vanadium oxide grain break utilization system configuration such as figure 1 , Includes a crusher, a high-pressure roller mill 2, to bunker 4, a screw feeder 6, 7 suspended decarburization roaster, a first cyclone 8, 9 suspension broken grain roaster, the second cyclonic separating 10, a cooler 11, mixed acid curing furnace 13, 14, the first filter means 15 the first leaching tank, second leaching groove 16, the second filter means 17, pH adjusted groove 18, the third filter device 19, and dried 20, the dust removing device 25, a chimney 26, a first combustor 27, a second combustor 28;

[0068] Crusher discharge port 1 and the high-pressure roller mill feed inlet 2 is relatively high-pressure roller mill discharge opening 2 and the belt 3 with respect to the first feed, the first feed belt 3 to the discharge end of the hopper 4 mate; to hopper discharge opening 4 and the second feed belt 5 opposite, second feed belt 5 to t...

Example Embodiment

[0085] Example 2

[0086] Stone coal vanadium ore roasting vanadium oxide grain break of the utilization system configuration in Example 1;

[0087] Stone coal used mass percent vanadium ore containing SiO 2 61.01%, Al 2 O 3 7.81%, V 2 O 5 0.79%, TFe2.76%, CaO 2.91%, MgO 1.33%, Na 2 O 1.33%, C 12.39%;

[0088] Methods to Example 1, different points lies in:

[0089] (1) grinding to 66% portion of the total mass of the particle diameter ≤0.074mm;

[0090] (2) 800 deg.] C for the decarburization reaction, the residence time of the powder ore 40min decarburization suspension calciner; the volume flow rate of air into oxygen and ratio of 1: 2;

[0091] (3) 850 ℃ for breaking polycrystalline oxidation reaction, the residence time of 90min decarburization mass broken crystal suspension calciner; the volume flow rate of air into oxygen and ratio of 1: 5;

[0092] (4) oxidizing material discharging temperature is lowered to 180 [deg.] C; after air through the heat exchanger, is formed deg...

Example Embodiment

[0097] Example 3

[0098] Stone coal vanadium ore roasting vanadium oxide grain break of the utilization system configuration in Example 1;

[0099] Stone coal used mass percent vanadium ore containing SiO 2 60.32%, Al 2 O 3 7.14%, V 2 O 5 0.93%, TFe2.17%, CaO 3.45%, MgO 1.69%, Na 2 O 1.18%, C 10.56%;

[0100] Methods to Example 1, different points lies in:

[0101] (1) grinding to 70% portion of the total mass of the particle diameter ≤0.074mm;

[0102] (2) 850 ℃ decarburization reaction, the residence time of the powder ore 30min decarburization suspension calciner; the volume flow rate of air into oxygen and ratio of 1: 3;

[0103] (3) 900 ℃ for breaking polycrystalline oxidation reaction, the residence time of 60min decarburization mass broken crystal suspension calciner; the volume flow rate of air into oxygen and a ratio of 1: 8;

[0104] (4) oxidizing material discharging temperature is lowered to 200 ℃; after air through the heat exchanger, is formed deg.] C hot air outlet...

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Abstract

The invention discloses a stone coal vanadium ore oxidizing, crystal breaking, roasting and vanadium extracting comprehensive utilization system. A crusher, a high-pressure roller mill, a first feeding belt, a feeding bin, a second feeding belt and a spiral feeder are sequentially matched with one another, and the discharging end of the spiral feeder is matched with a feeding port of a suspensiondecarburization roasting furnace; the suspension decarburization roasting furnace, a first cyclone separator, a suspension crystal breaking roasting furnace, a second cyclone separator and a cooler are sequentially communicated in series; a combustor and an air inlet are respectively arranged at the bottoms of the suspension decarburization roasting furnace and the suspension crystal breaking roasting furnace; an air inlet of the cooler is communicated with an air compressor; and a discharging hole in the bottom of the cooler is matched with a feeding hole of an acid mixing curing furnace; andthe acid mixing curing furnace, a first leaching tank, a first filtering device, a second leaching tank, a second filtering device, a pH value adjusting tank and a third filtering device are sequentially connected in series and matched with one another. The system provided by the invention is stable in operation, large in treatment capacity, low in energy consumption and cost of unit treatment capacity, and capable of easily controlling product properties and easily achieving large-scale equipment.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a comprehensive utilization system for vanadium extraction by oxidizing, crystal breaking and roasting of stone coal vanadium ore. Background technique [0002] Vanadium is an important strategic material, which is widely used in steel, alloy, aerospace, medical and health, electronics and other fields. Vanadium-titanium-magnetite and stone coal are the main vanadium resources; at present, the main techniques for extracting vanadium from stone coal include roasting leaching, direct leaching and external force leaching. The roasting and leaching process includes sodium roasting vanadium extraction process, calcium roasting vanadium extraction process and composite additive roasting vanadium extraction process, and direct leaching process includes direct acid leaching vanadium extraction process, oxidative acid leaching vanadium extraction process and fluorin...

Claims

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Application Information

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IPC IPC(8): C22B34/22C22B1/10C22B3/02C22B3/04C22B3/12C22B3/22C22B3/44C01B33/12
CPCC22B34/22C22B1/10C22B3/02C22B3/04C22B3/12C22B3/22C22B3/44C01B33/12Y02P10/20Y02P20/10
Inventor 李艳军韩跃新谢瑞琦高鹏袁帅孙永升
Owner 上海逢石科技有限公司
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