Slag recovery device for production of polyaluminum chloride
A technology of polyaluminum chloride and recovery device, applied in mixers with rotating stirring devices, transportation and packaging, chemical instruments and methods, etc., can solve problems such as adhesion and troublesome cleaning, achieve convenient recycling work, and reduce labor The effect of the cleaning step
Inactive Publication Date: 2022-01-04
芜湖艾妮日化有限责任公司
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[0003] At present, the production process of polyaluminum chloride is mostly produced by the reaction of hydrochloric acid, aluminum hydroxide, and calcium aluminate powder. Due to the incomplete reaction, a certain amount of aluminum hydroxide slag will be produced. In order to avoid waste, these slags are pressed through a filter press. After filtering, re-add water and stir, and then re-pass into the reactor for recycling, but the aluminum hydroxide after adding water and stirring becomes a fluid slurry, which is easy to adhere to the slurry on the inner wall of the stirring tank and the stirring blades. Very troublesome to clean
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[0017] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments.
[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present specification shall have ordinary meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in one or more embodiments of the present specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanica...
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The invention provides a slag recovery device for production of polyaluminum chloride. The device comprises a stirring tank, the bottom of the stirring tank is connected with a discharge pipe, the upper end of the stirring tank is provided with a cover plate, the middle of the upper end of the cover plate is fixedly provided with a first supporting base, and a stirring pipe is vertically fixed to a bearing inner ring of the first supporting base; the lower end of the stirring pipe penetrates through the cover plate and extends into the stirring tank, a plurality of blades are fixed to the outer wall of the lower end of the stirring pipe, an annular base is arranged on the inner side of the stirring tank and arranged on the outer side of the stirring pipe in a sleeving mode, and a plurality of spray heads are evenly distributed on the inner wall and the outer wall of the annular base in a circumferential mode. The annular base is also connected with a first water inlet pipe. According to the device, the annular base moves up and down to wash the stirring tank, the stirring pipe and the blades and remove attached slurry, so that the recycling of slag and the cleaning of the stirring tank, the stirring pipe and the blades are realized, the steps of manual cleaning are reduced, and the recycling work is more convenient.
Description
technical field [0001] The invention relates to the technical field of polyaluminum chloride production equipment, in particular to a slag recovery device for production of polyaluminum chloride. Background technique [0002] Polyaluminum chloride is commonly known as water purifying agent, referred to as polyaluminum, English name PAC, and basic polyaluminum chloride, spray-dried polyaluminum chloride belong to related water purifying agents, it is a polyhydric, polynuclear complex Cationic inorganic polymer flocculant, the solid product is yellow or white fixed powder. [0003] At present, the production process of polyaluminum chloride is mostly produced by the reaction of hydrochloric acid, aluminum hydroxide, and calcium aluminate powder. Due to the incomplete reaction, a certain amount of aluminum hydroxide slag will be produced. In order to avoid waste, these slags are pressed through a filter press. After filtering, re-add water and stir, and then re-pass into the r...
Claims
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IPC IPC(8): B01F27/90B01F35/12B01F35/11
Inventor 李扬李永康毛会荣
Owner 芜湖艾妮日化有限责任公司