Mechanical apparatus for preparing poly aluminium chloride

A technology of polyaluminum chloride and mechanical devices, applied in the direction of aluminum chloride, aluminum halide, etc., can solve the problems of high production costs, achieve the effects of good operating conditions, low water purification costs, and low production costs

Inactive Publication Date: 2015-03-18
魏加珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main types of raw materials for the production of polyaluminum chloride: one is aluminum-containing minerals, including bauxite, clay, kaolin, alunite, etc.; the other is aluminum-containing raw materials, including metal aluminum, waste aluminum scraps, ash Aluminum, aluminum hydroxide, aluminum trichloride, coal gangue, fly ash, etc.; only aluminum ingots, aluminum chips, aluminum hydroxide, aluminum sulfate, and aluminum dichloride can be used as raw materials to produce relatively pure polyaluminum chloride product, but the production cost is several times higher

Method used

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  • Mechanical apparatus for preparing poly aluminium chloride

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Embodiment Construction

[0011] Further illustrate below in conjunction with accompanying drawing and use this mechanical device to prepare the concrete content of the best embodiment of polyaluminum chloride:

[0012] 1. Send the concentrated ore kaolin accounting for 16% of the total amount into the roasting furnace 1 through the concentrated ore kaolin inlet 6 arranged on the roasting furnace 1, and roast at a temperature of 350-400°C for 1.5-2 hours, then stop roasting, and cool down to room temperature for later use.

[0013] 2. The industrial-grade hydrochloric acid that accounts for 37% of the total amount is sent into the stirring tank 2 through the industrial-grade hydrochloric acid inlet 8 arranged on the stirring tank 2, and 13% of the total amount is added through the water inlet 9 arranged on the stirring tank 2 Water, after stirring evenly, start to heat up to 55-65°C, send the roasted concentrate kaolin in the roasting furnace 1 into the stirring tank 2 through the first conveyor 7 arra...

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Abstract

The invention discloses a mechanical apparatus for preparing poly aluminium chloride, and the apparatus belongs to the field of chemical engineering. The mechanical apparatus comprises a roasting furnace, a stirring tank, a filter, a concentration kettle and a spray dryer, and is characterized in that the roasting furnace is provided with a concentrate kaolin inlet, and a first conveyer is arranged between the roasting furnace and the stirring tank; the stirring tank is provided with an industrial-grade hydrochloric acid inlet, a water inlet, a calcium aluminate powder inlet and a first impurity outlet, and a first slurry pump and a pipeline are arranged between the stirring tank and the filter; the filter is provided with a second impurity outlet, and a second slurry pump and a pipeline are arranged between the filter and the concentration kettle; and a third slurry pump and a pipeline are arranged between the concentration kettle and the spray dryer, and the spray dryer is provided with a finished-product outlet.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a mechanical device for preparing polyaluminum chloride. Background technique [0002] Polyaluminum chloride is an inorganic polymer coagulant, also known as polyaluminum for short, it is a water-soluble inorganic polymer between aluminum trichloride and aluminum hydroxide, the color is yellow or Light yellow, dark brown, dark gray resinous solid or liquid. Due to the bridging effect of hydroxide ions and the polymerization of polyvalent anions, polyaluminum chloride has become an inorganic polymer water treatment agent with a large molecular weight and a high charge. This product has strong bridging and adsorption properties. , in the process of hydrolysis, accompanied by physical and chemical processes such as coagulation, adsorption and precipitation, the fundamental difference between polyaluminum chloride and traditional inorganic coagulants is that traditional inorganic co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/56
CPCC01F7/56
Inventor 魏加珍
Owner 魏加珍
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