Spray drying method for preparing modified light calcium carbonate

A light calcium carbonate, drying method technology, applied in the direction of calcium carbonate/strontium/barium, spray evaporation, chemical instruments and methods, etc., can solve the problems of product impact, difficult to clean, difficult to control the time of spray drying, etc., to achieve work The effect of expanding the scope and good atomization effect

Inactive Publication Date: 2021-07-09
合肥高尧化工科技有限公司
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Problems solved by technology

[0003] However, the existing modified light calcium carbonate preparation spray drying equipment has the following problems when the modified light calcium carbonate is spray-dried: one, the existing modified light calcium carbonate preparation spray drying equipment is used to modify the modified light calcium carbonate. It is difficult to control the time of spray drying when the high-quality calcium carbonate is spray-dried, and the time is too long and the end will have a certain impact on the final product; When the light calcium carbonate is spray-dried, the powder is easy to stick to the equipment and it is difficult to clean up

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  • Spray drying method for preparing modified light calcium carbonate
  • Spray drying method for preparing modified light calcium carbonate
  • Spray drying method for preparing modified light calcium carbonate

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[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] Refer to shown in 1-8, a kind of modified light calcium carbonate prepares spray-drying method, it has used a kind of modified light calcium carbonate to prepare spray-drying equipment, this modified light calcium carbonate prepares spray-drying equipment and comprises drying tower 1, blower 2, electric heating machine 3, atomizing device 4, feeding device 5 and separation device 6, the left side of described drying tower 1 is provided with blower 2, and blower 2 is provided with electric heating machine 3, and electric heating machine 3 and drying The upper...

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Abstract

The invention relates to a spray drying method for preparing modified light calcium carbonate; spray drying equipment is used for preparing modified light calcium carbonate, and the spray drying equipment for preparing modified light calcium carbonate comprises a drying tower, an air blower, an electric heating machine, an atomizing device, a feeding device and a separating device. When the spray drying equipment for preparing the modified light calcium carbonate is used for performing spray drying on the modified light calcium carbonate, the spray drying method comprises the following steps: S1, blowing in hot air; S2, atomizing the slurry; S3, carrying out spray drying; S4, cleaning powder; and S5, carrying out powder separation. The spray drying time can be controlled, so that the spray drying equipment works according to different requirements, the working range is expanded, and the situation that powder adheres to the interior of equipment and influences production can be prevented.

Description

technical field [0001] The invention relates to the technical field of calcium carbonate preparation, in particular to a spray-drying method for preparing modified light calcium carbonate. Background technique [0002] Light calcium carbonate is also called precipitated calcium carbonate, and its chemical formula is CaCO3. Light calcium carbonate is produced by chemical processing. Because its sedimentation volume is larger than that of heavy calcium carbonate produced by mechanical methods, it is called light calcium carbonate. The so-called modified light calcium carbonate refers to the activation treatment of the surface of the light calcium carbonate. In the preparation process of the modified light calcium carbonate, it must go through foaming, grinding, drying, and modification. The drying process generally uses spray drying method. [0003] However, the existing modified light calcium carbonate preparation spray drying equipment has the following problems when the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/18B01D1/20B01D1/30C01F11/18
CPCB01D1/18B01D1/20B01D1/30C01F11/185
Inventor 薛小宁赵云华
Owner 合肥高尧化工科技有限公司
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