Backflow suspension type calcining furnace system

A calciner and suspension technology, which is applied in the field of reflux suspension calciner system, can solve the problems of failure to grasp the business opportunities of light calcium carbonate, low energy efficiency, no heat preservation, etc., and achieve the promotion of energy efficiency, high economic benefits, large The effect of application range

Active Publication Date: 2013-06-26
IND TECH RES INST +1
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Problems solved by technology

[0003] The cement industry is also a major contributor to carbon dioxide emissions, but air combustion and airtightness are not good. Even if the system calcines to produce carbon dioxide, the carbon dioxide concentration in the emitted flue gas is still only 25-30vol%. Capture technology is still needed to increase the concentration to achieve reuse and storage benefits. , In addition, the cement industry is one of the six major energy-consuming industries. The process uses air combustion and most of them do not have insulation. The heat loss is too much and the energy efficiency is low. The only way to improve efficiency is to recover waste heat through power generation. Big
In addition, traditional technology failed to grasp the business opportunities of light calcium carbonate

Method used

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  • Backflow suspension type calcining furnace system

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Embodiment Construction

[0013] Embodiments for practicing the invention are discussed in detail below. The specific embodiments discussed are merely intended to reveal specific ways to use the embodiments and do not limit the scope of the disclosure.

[0014] The present invention discloses calcining equipment related to a carbon dioxide capture system, which captures carbon dioxide in the exhaust gas of a power plant at a high temperature, improves the capture of carbon dioxide, and enables the adsorbent to be continuously reused, reduces reaction time, saves fuel, and reduces the cost of carbon dioxide capture. The present invention utilizes the "reflux suspension calciner" with time and fuel efficiency to calcine absorbents, such as calcined calcium carbonate (CaCO 3 ) to obtain calcium oxide (CaO), so as to make light calcium carbonate or use it for carbon dioxide capture.

[0015] figure 1 For a schematic diagram showing a reflux suspension calciner system according to an embodiment of the pre...

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Abstract

Provided is a backflow suspension type calcining furnace system, comprising a plurality of cyclone dust collection devices, wherein a top unit of a cyclone dust collection device is used as a feeder system, a vertical burning kiln, a high temperature windmill and a discharge system. Powder in the feeder system drops into the cyclone dust collection devices; the powder drops and passes through the plurality of cyclone dust collection devices to perform heat exchange with converse high temperature flue gas to generate calcination reaction and release carbon dioxide smoke; the smoke is transmitted to the feeder system pushed by the high temperature windmill and is used as feeder transmission gas of power.

Description

technical field [0001] The invention relates to a waste gas treatment device, in particular to a reflux suspension calciner system. Background technique [0002] In recent years, issues such as global environmental change and energy depletion have been seriously concerned by governments and environmental protection groups. Due to the large-scale development of industry, petrochemical products are used in large quantities, and about four-fifths of the global energy supply structure comes from fossil fuels (fossil fuel). CO 2 Also the most, such as the effective capture or sequestration of emitted CO 2 It will greatly reduce the carbon dioxide content in the air. [0003] The cement industry is also a major contributor to carbon dioxide emissions, but air combustion and airtightness are not good. Even if the system calcines to produce carbon dioxide, the carbon dioxide concentration in the emitted flue gas is still only 25-30vol%. Capture technology is still needed to incre...

Claims

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Application Information

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IPC IPC(8): F27D17/00C01F7/02C01B31/20C01B32/50
CPCY02A50/20
Inventor 陈威丞柳万霞黄钦铭欧阳湘徐恒文
Owner IND TECH RES INST
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