Elution treatment equipment and process for tail gas generated during production of polycrystalline silicon
A technology of processing equipment and processing technology, applied in the field of leaching processing equipment and processing technology, can solve the problems of poor labor environment, many workers, and high labor intensity of workers, so as to improve efficiency, change inefficient collection methods, improve The effect of high-intensity labor
Inactive Publication Date: 2013-12-11
CHINA ENFI ENGINEERING CORPORATION
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However, using manual salvage and manual transportation requires more workers, the labor intensity of the workers is relatively high, the working environment is poor, and the required space is large.
[0003] Therefore, the leaching treatment equipment and treatment process of the tail gas produced by the production of polysilicon need to be improved
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[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.
[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the position or positional relationship shown in the drawings, and is only for the convenience of describing the present invention a...
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The invention provides elution treatment equipment and process for tail gas generated during production of polycrystalline silicon. The elution treatment equipment comprises a tail gas elution tower for eluting the tail gas, a hydrolyzing tank, a neutralizing tank and a dreg scraping machine, wherein the hydrolyzing tank is connected with the tail gas elution tower and is used for accepting wastewater discharged from the tail gas elution tower; the neutralizing tank is connected with the hydrolyzing tank; the dreg scraping machine is movably arranged above the hydrolyzing tank and is used for automatically scraping dreg floated on the surface of the wastewater in the hydrolyzing tank into the neutralizing tank. Therefore, the dreg floated on the surface of the wastewater and dreg generated by eluting the tail gas generated in the production process of the neutralizing tank can be treated effectively and automatically; a low-efficiency collection manner of manually fishing in a traditional process is changed and the high-strength work of workers is improved.
Description
Technical field [0001] The present invention relates to the technical field of polycrystalline silicon production, in particular to a leaching treatment equipment and treatment process for the tail gas generated in the production of polycrystalline silicon. Background technique [0002] The tail gas produced in the process of reducing trichlorosilane to produce polysilicon usually needs to be leached with water and discharged to the standard. However, a large amount of slag (SiO 2 , Commonly known as white carbon black). The particle size of the slag is very small and belongs to the nanometer level. Large amounts of slag often block water pumps and pipelines during transportation. For this reason, manual salvage is currently used to collect the slag in the wastewater. However, manual salvage and manual transportation require more workers, the labor intensity of workers is greater, the labor environment is poor, and the space required is large. [0003] Therefore, the leaching t...
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IPC IPC(8): B01D53/18B01D53/14C02F9/04C02F103/18
Inventor 陈希勇叶绍成张志刚杨永亮严大洲
Owner CHINA ENFI ENGINEERING CORPORATION