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Nano-calcium carbonate carbonization reaction kettle

A nano-calcium carbonate and reaction kettle technology, which is applied in the fields of calcium carbonate/strontium/barium, chemical industry, sustainable manufacturing/processing, etc., can solve the problems of complex design of supergravity synthesizers, limited industrial applications, and high operating costs, and achieves The effect of fully dispersing and enhancing mass transfer, short reaction time and increasing gas-liquid contact area

Active Publication Date: 2013-01-30
GUANGXI HUANA NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hypergravity synthesizer has disadvantages such as complex design, large equipment investment, high operating cost, and utilization rate of reaction gas, which greatly limits its industrial application.

Method used

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  • Nano-calcium carbonate carbonization reaction kettle

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] The reaction kettle adopts stainless steel structure, and the ratio of height to diameter is 3:1. The setting includes a motor, a reducer, an agitator, an air inlet pipe and a valve, and a multi-layer propulsion agitator A5 and a disc sawtooth agitator B8 are arranged on the central axis of the reactor 1, wherein a circular agitator is arranged near the bottom of the reactor 1. Disk serrated agitator B8, the diameter of agitator B8 is 700mm, the height of agitator B8 from the bottom of reactor 1 is 400mm, the height of agitator B8 from the air outlet of inlet pipe 9 is 200mm, and the speed of agitator B8 is controlled at 400r / min frequency conversion motor B11 connection. In the middle and upper part of the reaction kettle 1, a multi-layer propulsion type agitator A5 is arranged, and the agitator A5 is composed of a stirring shaft 6 and a stirring impeller 7 with 3 blades, and the blades of the stirring impeller 7 are arranged to be inclined at 10° in the same directio...

Embodiment 2

[0035] The reaction kettle adopts stainless steel structure, and the aspect ratio is 2.5:1. The setting includes a motor, a reducer, an agitator, an air inlet pipe and a valve, and a multi-layer propulsion agitator A5 and a disc sawtooth agitator B8 are arranged on the central axis of the reactor 1, wherein a circular agitator is arranged near the bottom of the reactor 1. Disk serrated agitator B8, the diameter of agitator B8 is 800mm, the height of agitator B8 from the bottom of reactor 1 is 360mm, the height of agitator B8 from the air outlet of air inlet pipe 9 is 200mm, and the speed of agitator B8 is controlled at 350r / min frequency conversion motor B11 connection. In the middle and upper part of the reaction kettle 1, a multi-layer propulsion type agitator A5 is arranged. The agitator A5 is composed of a stirring shaft 6 and a stirring impeller 7 with 2 blades and 4 blades. The blades of the stirring impeller 7 are arranged to be inclined at 15° in the same direction. ...

Embodiment 3

[0038] The reaction kettle adopts carbon steel structure, and the ratio of height to diameter is 4.5:1. The setting includes a motor, a reducer, an agitator, an air inlet pipe and a valve, and a multi-layer propulsion agitator A5 and a disc sawtooth agitator B8 are arranged on the central axis of the reactor 1, wherein a circular agitator is arranged near the bottom of the reactor 1. Disk serrated agitator B8, the diameter of agitator B8 is 400mm, the height of agitator B8 from the bottom of reactor 1 is 600mm, the height of agitator B8 from the air outlet of air inlet pipe 9 is 350mm, and the speed of agitator B8 is controlled at 450r / min frequency conversion motor B11 connection. In the middle and upper part of the reaction kettle 1, a multi-layer propulsion type agitator A5 is arranged. The agitator A5 is composed of a stirring shaft 6 and a stirring impeller 7 with 5 blades and 2 blades. The blades of the agitating impeller 7 are arranged to be inclined 8° in the same dir...

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Abstract

The invention discloses a nano-calcium carbonate carbonization reaction kettle. The reaction kettle comprises a motor, a speed reducer, stirrers, a gas inlet pipe and valves, wherein the stirrer B8 is close to the bottom of a reaction kettle 1 and is connected with a variable frequency motor B11; the middle upper part of the reaction kettle 1 is provided with the stirrer A5 consisting of a stirring shaft 6 and a stirring impeller 7; the upper end of the stirring shaft 6 is sequentially connected with the speed reducer 3 on the top of the reaction kettle 1 and the motor A2; the reaction kettle 1 is provided with the valve A4; and the gas inlet pipe 9 and the valve C12 are arranged at the bottom of the reaction kettle 1. The round zigzag stirrers arranged in the reaction kettle are used for supplying high shearing force to slurry and gas in the reaction kettle, so that the effects of uniformly distributing gas, reducing bubble diameter, increasing gas-liquid contact area, sufficiently dispersing and strengthening mass transfer can be achieved, so that a macro-circulation is formed, and the utilization of carbon dioxide is improved; and the reaction kettle is simple in arrangement, small in investment, low in energy loss, easy in operation control and short in reaction time; and product quality is uniform and stable.

Description

Technical field: [0001] The invention relates to chemical equipment, in particular to a reaction kettle used for carbonation synthesis of nanometer calcium carbonate. Background technique: [0002] Calcium carbonate is a white, non-toxic and important inorganic powder material. With the advancement of calcium carbonate miniaturization and surface treatment, calcium carbonate products are developing from a single filling type to a specialized, refined and functional direction, and people's demand for micronized calcium carbonate is also increasing. Due to its small particle size, high specific surface area and special surface treatment, nano-calcium carbonate has superior properties that cannot be compared with ordinary calcium carbonate. Nano-calcium carbonate is widely used in the fields of plastics, rubber, viscose, coatings and inks. It can not only play the role of incremental filling and reduce processing costs, but also functionally modify the filling objects. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18
CPCY02P20/10
Inventor 朱勇王权广颜才干龙小娥韦官文
Owner GUANGXI HUANA NEW MATERIALS TECH CO LTD
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