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High-temperature steel slag treatment system and a treatment method thereof

A processing system and processing method technology, applied in the field of high-temperature steel slag processing systems, can solve the problems of difficult to clean steel slag adhesion, clogging of screening equipment, large energy consumption of wet electrostatic precipitator, etc. Avoid the effect of sticking the belt

Pending Publication Date: 2021-10-15
BEIJING ZHTY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The temperature of the steel slag treated by the above-mentioned traditional method is about 50-80°C. The moisture content of this steel slag is extremely high, and a large amount of dust-laden steam will be generated during the stacking process, and the dust-laden steam will diffuse into the air. It not only corrodes the factory building, but also easily causes the safety of on-site personnel; (2) When the above-mentioned steel slag with extremely high moisture content enters the secondary treatment production line, it will cause fine particles of steel slag to stick to the belt and block the screening equipment and other production lines. Fault; (3) The energy consumption of wet electrostatic precipitator is large, and the steel slag sticks to the dust collector and it is difficult to clean; (4) The steel slag that has been processed once needs to go offline to the steel slag secondary treatment system, and it needs to be transported twice in the middle, which is time-consuming strenuous

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  • High-temperature steel slag treatment system and a treatment method thereof

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Effect test

Embodiment 1

[0046] This embodiment provides a processing system for high-temperature steel slag, such as figure 1 As shown, it includes: a roll crushing device 1 and a screening device 2; the discharge port of the roll crushing device 1 is connected to the feed port of the screening device 2;

[0047] It also includes: a first tank-type heat-stuffing device 3, a first vacuum filtration device 4, and a crushing and screening device 5; The first vacuum filtration device 4 and the crushing and screening device 5 are sequentially connected and arranged;

[0048] It also includes: a waste heat recovery device 6, a second tank-type hot stuffy device 7 and a second vacuum filtration device 8; Type thermal stuffiness device 7, described second vacuum suction device 8 are connected and arranged in sequence;

[0049] It also includes: a steel slag secondary processing device 9; the crushing and screening device 5 and the second vacuum filtration device 8 are respectively connected to the steel sl...

Embodiment 2

[0055] This embodiment provides a treatment method for high-temperature steel slag, including:

[0056] (1) After the high-temperature steel slag to be treated (at a temperature of 600° C.) is rolled and crushed, it is passed through a bar sieve with a sieve hole diameter of 10 to 70 mm to obtain steel slag on the sieve and steel slag under the sieve;

[0057] (2) The steel slag on the sieve is successively subjected to tank-type hot stuffy treatment and vacuum filtration treatment (when the temperature of the water vapor discharged after the vacuum suction filtration treatment is 73.345, the frequency of the vacuum suction filtration treatment is adjusted to make the tank-type hot stuffy treatment The pressure is below 36000Pa; after the humidity is reduced by 80%, the vacuum filtration process stops, and finally the moisture content of the steel slag after the vacuum filtration process is 5%) and crushing and screening process to obtain steel slag 1;

[0058] (3) The steel s...

Embodiment 3

[0065] This embodiment provides a treatment method for high-temperature steel slag, including:

[0066] (1) After the high-temperature steel slag to be treated (at a temperature of 600° C.) is rolled and crushed, it is passed through a bar sieve with a sieve hole diameter of 10 to 70 mm to obtain steel slag on the sieve and steel slag under the sieve;

[0067] (2) The steel slag on the sieve is successively subjected to tank-type hot stuffy treatment and vacuum filtration treatment (when the temperature of the water vapor discharged after the vacuum suction filtration treatment is 60.058°C, adjust the frequency of the vacuum suction filtration treatment to make the tank-type hot stuffy treatment The pressure is below 20000Pa; after the humidity is reduced by 80%, the vacuum filtration process stops, and finally the moisture content of the steel slag after the vacuum filtration process is 7%) and crushing and screening process to obtain steel slag I;

[0068] (3) The steel slag...

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Abstract

The invention relates to the field of solid waste recycling, in particular to a high-temperature steel slag treatment system and a treatment method thereof. The temperature of the steel slag treated by the system / method is about 30 DEG C, the water content is lower than 8%, the safety problem of the steel slag treated by a traditional mode is effectively avoided, and meanwhile, the problems that the steel slag treated by the traditional mode adheres to a belt and blocks screening equipment in subsequent treatment are effectively avoided. In addition, according to the treatment system and the treatment method provided by the invention, primary treatment and secondary treatment of the steel slag are fused, so that an intermediate reshipment link is reduced. Meanwhile, the treatment system and the treatment method provided by the invention can also reduce the energy consumption of flue gas treatment.

Description

technical field [0001] The invention relates to the field of solid waste recycling, in particular to a high-temperature steel slag processing system and a processing method thereof. Background technique [0002] In the prior art, the method of "roller crushing + tank-type hot stuffiness" is mostly used to treat high-temperature steel slag, and the method of "scrubbing tower + dehydrator + wet electrostatic precipitator" is used to remove dust; however, the above-mentioned traditional treatment methods have the following shortcomings: [0003] (1) The temperature of the steel slag treated by the above-mentioned traditional method is about 50-80°C. The moisture content of this kind of steel slag is extremely high, and a large amount of dust-laden steam will be generated during the stacking process, and the dust-laden steam will diffuse into the air. Not only does it corrode the factory building, but it also easily causes safety problems for on-site personnel; (2) when the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06C21B3/08C21B3/10B02C23/08B01D36/00
CPCC21B3/06C21B3/08C21B3/10B02C23/08B01D36/00Y02W30/50
Inventor 唐卫军陈晶
Owner BEIJING ZHTY TECH CO LTD
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