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High-temperature steel slag carbonation deep stabilization treatment device and method

A technology of carbonization depth and treatment device, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of steel slag stability that cannot be completely solved, lack of steel slag deep stabilization process technology and equipment, and cannot be used. Concrete and other problems, to achieve the effect of improving the value of resource utilization, significant economic and social benefits, and short treatment process

Pending Publication Date: 2020-10-13
MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION +1
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Problems solved by technology

[0005] Steel slag without stabilization treatment can be stabilized after natural aging for several years or even longer. However, due to the difference in natural conditions and properties of steel slag in various places, it is impossible to give a specific aging time to determine whether the steel slag is completely stable. It lacks fast and efficient Advanced steel slag deep stabilization technology and equipment
The current steel slag treatment can partially solve the stability problem of steel slag by hot stuffing method, but because the stability problem of steel slag cannot be completely solved, the current steel slag mixture can only replace sand and gravel in a small amount, and cannot be used as concrete

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  • High-temperature steel slag carbonation deep stabilization treatment device and method

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Embodiment Construction

[0028] A high-temperature steel slag carbonization depth stabilization treatment device such as figure 1 As shown, a high-temperature steel slag carbonization depth stabilization treatment device includes: steel slag tank 1, air hole 2, stabilization tank 3, tank door 4, tank seat 5, gas tank 6, air pipe 7, vent valve 8, pressure gauge 9 , thermometer 10, water spray port 11, exhaust valve 12, safety valve 13, explosion-proof valve 14, drain valve 15, central control system 16. The steel slag tank 1 is placed on the tank seat 5 at the bottom of the stabilizer tank 3; the tank body of the steel slag tank 1 is provided with an air hole 2; the gas tank 6 is connected to the stabilizer tank 3 through a gas pipe 7, and is used to dissipate the CO in the gas tank 6 2 The gas enters from the bottom of the stabilizer tank 3; the tank door 4 is set on the upper part of the opening of the stabilizer tank 3 for closing the stabilizer tank 3; Fetching water; exhaust valve 12, safety valv...

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Abstract

The invention relates to a high-temperature steel slag carbonation deep stabilization treatment device and method. The device includes a steel slag tank (1), an air hole (2), a stabilizing tank (3), atank door (4), a tank seat (5), a gas tank (6), an air pipe (7), a water spraying port (11), an exhaust valve (12), a safety valve (13), an explosion-proof valve (14) and a water discharge valve (15), wherein high-temperature steel slag is deeply stabilized with CO2, and free CaO in the high-temperature steel slag is digested with water and other acid gases. The process flow is short, the degreeof automation of the device is high, the production efficiency in the treatment process is high, the treated steel slag has good stability and can replace sand stone material in large quantities, andthus recycling of the steel slag is facilitated.

Description

technical field [0001] The invention relates to a device and method for deep stabilization treatment of high-temperature steel slag carbonization, in particular to a device and method for deep stabilization treatment of high-temperature steel slag produced by steelmaking in iron and steel enterprises. Background technique [0002] my country is a big country in steel production. In recent years, steel production has exceeded 900 million tons, accounting for more than half of the world's total. Steel slag is an inevitable product of the steelmaking process. Every ton of steel smelted produces 120-140kg of steel slag, and the total annual production in the country exceeds 100 million tons. The main chemical components of steel slag are CaO, SiO 2 , FeO, Fe 2 o 3 and other oxides. Generally, the content of CaO in converter steel slag is about 40%, and SiO 2 At 15-20%, the iron oxide content is 20-25%, and there are about 10% residual steel and other substances. In short, s...

Claims

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Application Information

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IPC IPC(8): C21B3/04C04B5/00C04B18/14C04B20/02
CPCC21B3/04C04B5/00C04B18/142C04B20/023C21B2400/02C21B2400/05C04B20/026Y02W30/50Y02W30/91
Inventor 吴龙岳昌盛彭犇王会刚胡天麒吴跃东孙健郝以党
Owner MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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