Fluidized production process for granular calcium chloride

A calcium chloride, fluidized technology, applied in the direction of calcium/strontium/barium chloride, calcium/strontium/barium halide, etc., can solve the problem that granular calcium chloride does not have a large area of ​​promotion.

Inactive Publication Date: 2006-01-18
ZIBO QILU CHEM
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

But at present, the production of granular calcium chloride is limited by the process, and the industrialization has not been widely promoted.

Method used

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  • Fluidized production process for granular calcium chloride

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Embodiment Construction

[0015] The lower part of the boiling granulation tower is the boiling section, which is an inverted cone-shaped cylinder. The lower part is an air distribution orifice plate 3, the upper part of the orifice plate is the boiling layer, and the lower part of the orifice plate has a high-temperature hot gas inlet 1. Material tube 12.

[0016] The process parameters are:

[0017] (1) The temperature of high temperature hot air under the orifice plate is 380-420°C

[0018] (2) Boiling section temperature 170-200°C

[0019] (3) Tower body temperature 160-190°C

[0020] (4) Under the orifice plate - pressure difference in boiling section (pressure difference between pressure measuring port 2 and pressure measuring port 5)

[0021] 380-420mmH 2 o

[0022] (5) Negative pressure in boiling section -30mmH 2 o

[0023] (6) Liquid calcium chloride is atomized by compressed air through the nozzle, and the air pressure is 0.2-0.5Mpa

[0024] ...

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Abstract

The granular calcium chloride producing fluidization process has liquid calcium chloride as main material and is completed inside one fluidizing and drying grain producing tower with turned conic fluidizing section, lower air distributing pore plate and upper fluidizing layer. The production process includes presetting granular calcium chloride crystal seed onto the air distributing pore plate and blowing in high temperature air for fluidizing calcium chloride; atomizing liquid calcium chloride with compressed air and spraying into the fluidizing layer for contact and heat exchange among the liquid drop, high temperature air and crystal seed to result in fast drying of liquid drop on the surface of the crystal seed and fast growth of the crystal seed to form granular calcium chloride; and discharging granular calcium chloride via the pipe in the center of the pore plate. The present invention is suitable for industrial production of spherical granular calcium chloride.

Description

technical field [0001] The invention belongs to the production technology of calcium chloride, in particular to the production technology of granular calcium chloride. Background technique [0002] Usually solid calcium chloride products have several forms such as powder, block, and granular. Among them, powdered calcium chloride is made by dehydrating liquid calcium chloride at high temperature by spray drying method. Powdered calcium chloride is prone to dust when used and has strong hygroscopicity. After calcium chloride absorbs moisture in the air, it is corrosive and conductive. Flying dust absorbs water and adheres to people, plant and equipment, endangering the health of operators and the normal operation of equipment, and the plant will also be corroded to reduce safety and service life. [0003] The block calcium chloride product is obtained by cooling and crystallizing the liquid calcium chloride, and then putting the obtained wet crystal ...

Claims

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Application Information

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IPC IPC(8): C01F11/24C01F11/32
Inventor 杨洪胜崔文军张玉岩谢廷德
Owner ZIBO QILU CHEM
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