Method and system device for removing impurities in carbide slag through micro-nano bubble coupling hydrocyclone separation
A technology of hydrocyclone separation and micro-nano bubbles, which is applied in the field of resources and the environment, can solve problems such as the separation and removal of aluminosilicate, unfavorable high-value utilization of carbide slag, etc., and achieve high-value utilization and impurity High removal efficiency and large treatment capacity
Active Publication Date: 2021-10-19
INST OF PROCESS ENG CHINESE ACAD OF SCI
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[0008] Although the above process method is aimed at separating impurities such as ferrosilicon and black floating carbon, it does not consider the separation and removal of aluminosilicate with a high content in carbide slag, which is not conducive to the further high-value utilization of carbide slag
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Embodiment 1
[0092] This embodiment provides a system device for removing impurities in calcium carbide slag by coupling micro-nano bubbles to hydrocyclone separation. The system device includes a micro-nano bubble generation device, a dispersion treatment device, and a hydrocyclone separation device connected in sequence; The micro-nano bubble generating device is provided with an air source inlet, a water source inlet, and a carbide slurry outlet containing micro-nano bubbles; The inlet of the calcium carbide slurry of nano bubbles is connected, and the outlet of the dispersion treatment device is connected with the hydrocyclone separation device.
[0093] The water source inlet is connected with the water source outlet of the dispersed treatment device. The dispersing treatment device is provided with a calcium carbide slurry inlet and a modifying agent inlet. A first stirring component is arranged in the dispersion processing device. The dispersion treatment device is a dispersion tr...
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Abstract
The invention provides a method and system device for removing impurities in carbide slag through micro-nano bubble coupling hydrocyclone separation. According to the method, micro-nano bubbles are generated by adding a modifier, hydrocyclone separation is coupled, impurities containing carbon, silicon, aluminum or iron and the like in the carbide slag can be effectively separated, the method and system device have the advantages of being high in impurity removal efficiency, large in treatment amount, low in cost and the like, and further high-value utilization of the carbide slag can be achieved. The system device is simple in connection, simple and convenient to operate and capable of achieving industrial continuous operation.
Description
technical field [0001] The invention relates to the technical field of resources and environment, in particular to a method and a system device for removing impurities in carbide slag through micro-nano bubble coupled hydrocyclone separation. Background technique [0002] Carbide slag is industrial solid waste formed during the production of acetylene, with a large amount of emissions. Carbide slag is mainly calcium hydroxide, with a content usually higher than 90%, and contains a small amount of impurities such as coke particles, ferrosilicon and aluminum-silicon minerals. Carbide slag is an agglomerated particle, and the impurity phase in the particle is mixed with calcium hydroxide. For larger-sized carbide slag particles that contain impurities and calcium hydroxide at the same time, it is difficult to effectively remove impurities in carbide slag by simple particle size separation. [0003] CN102091525A discloses a preparation device and process for calcium carbide slag...
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IPC IPC(8): B03B5/34B03B1/04
CPCB03B5/34B03B1/04
Inventor 李少鹏孟子衡李会泉朱干宇李占兵颜坤
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI