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Waste-heat multilayer circulation light calcium carbonate energy-saving baking method and device

A light calcium carbonate, multi-layer circulation technology, applied in calcium carbonate/strontium/barium, chemical instruments and methods, drying, etc., can solve problems such as high labor intensity, high energy consumption, and large environmental pollution, and achieve reduction Occupying space, saving energy in production, and saving energy

Inactive Publication Date: 2018-04-17
湖南恒旺碳酸钙有限公司
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AI Technical Summary

Problems solved by technology

[0009] The object of the invention of the present invention is to propose a new waste heat multi-layer cycle energy-saving baking method for light calcium carbonate in view of the problems of high energy consumption, high labor intensity in the production process, and relatively large environmental pollution in the current production method of light calcium carbonate. device, the light calcium carbonate energy-saving baking method and device can greatly reduce the energy consumption of production, and can effectively reduce the floor area of ​​production equipment, achieve the effects of reducing energy consumption, saving resources, eliminating environmental pollution, and achieving a clean and environmentally friendly production process method purpose

Method used

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  • Waste-heat multilayer circulation light calcium carbonate energy-saving baking method and device

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Effect test

Embodiment 1

[0030] as attached figure 1 Shown, a kind of waste heat multi-layer circulating light calcium carbonate energy-saving baking device is a multi-layer circulating light calcium carbonate baking box, comprising a box body 1, and a conveyor belt 2 arranged in multiple layers is arranged in the box body 1, and each A heat tracing pipe 3 is arranged next to the conveyor belt, and the light calcium carbonate wet cake on the conveyor belt 2 is dried through the heat tracing pipe 3 .

[0031]Further, the conveyor belts 2 arranged in multiple layers are arranged in a top-to-bottom end-to-end arrangement, that is, below the position of the tail 4 of the uppermost conveyor belt 11 is the position of the head 5 of the next conveyor belt 12, and the position of the previous conveyor belt 12 is When the layer conveyor belt moves the light calcium carbonate wet cake to the tail, it will turn over and fall to the head position of the next layer of conveyor belt when the conveyor belt turns.

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Embodiment 2

[0037] The principle of embodiment two is the same as that of embodiment one, except that the system device used is different. It is a waste heat multi-layer circulation light calcium carbonate energy-saving baking device, which is a multi-layer circulation light calcium carbonate baking box, including a rectangular In the box, there are multi-layered conveyor belts, and heat tracing tubes are arranged on the box next to each layer of conveyor belts, and the light calcium carbonate wet cake on the conveyor belt is dried through the heat tracing tubes. .

[0038] Further, the conveyor belts arranged in multiple layers are arranged end-to-end, that is, the position of the tail of the uppermost layer of conveyor belt is below the position of the head of the next layer of conveyor belt, and the upper layer of conveyor belt will lightly When the high-quality calcium carbonate wet cake moves to the tail, it will turn over and fall onto the head position of the next layer of conveyor...

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Abstract

The invention discloses a waste-heat multilayer circulation light calcium carbonate energy-saving baking method. According to the method, carbonized, filtered and dewatered light calcium carbonate wetcakes are dried by a drying oven. The method is characterized in that the light calcium carbonate wet cakes are dried by a vertically stacked multilayer circulation light calcium carbonate baking oven, hot air is prepared by a chaff burning furnace, so that circularly drying is achieved, the hot air is prepared by the chaff burning furnace in the dewatering and drying engineering to perform drying, the waste heat of the hot air is comprehensively utilized by the aid of a multilayer circulation mode, smoke generated by chaff burning is precipitated, so that pollution-free discharge of the smoke is achieved, and light calcium carbonate is produced by intelligently utilizing ecological resources.

Description

technical field [0001] The present invention relates to a method and device for producing light calcium carbonate, in particular to a production method and device for baking light calcium carbonate using waste heat. The production method and device for baking light calcium carbonate are more energy-saving and environmentally friendly , saving resources, and realizing intelligent control, belongs to the technical field of light calcium carbonate production. Background technique [0002] Light Calcium Carbonate (Light Calcium Carbonate) is also called Precipitated Calcium Carbonate (PCC for short). As a filler with a wide range of uses, light calcium carbonate is widely used in plastics, rubber, papermaking, coatings, and pharmaceutical and food industries. The domestic demand alone is more than 10 million tons per year, and it is an industry with an output value exceeding 10 million tons. A billion-dollar industry. The production of light calcium carbonate is divided accord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18F26B17/04F26B21/00F26B25/00
CPCC01F11/185F26B17/04F26B21/001F26B25/00Y02P20/10Y02P20/129
Inventor 程友恒
Owner 湖南恒旺碳酸钙有限公司
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