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Method of Radiation Heating and Drying of Materials Using Reverse Infrared Radiation Generator

An infrared radiation and radiation heating technology, applied in the field of radiation processing, can solve the problems of unsuitable materials, incomplete combustion, and large damage, and achieve the effect of solving incomplete combustion, reducing combustion speed, and maintaining work safety.

Active Publication Date: 2018-08-14
上海蓝炽热能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design of the reverse gas infrared radiator needs to solve two technical problems: 1. Reverse combustion will cause the premixed gas to be poured from above the combustion plate, how to control the balance between the input speed of the premixed gas and the burning speed; 2. How to suppress the heat Conduct upwards to control the temperature of the gas infrared radiator to prevent the premixed gas from igniting and exploding inside the combustion plate
[0009] This technical solution has the following negative effects: 1. The speed of airflow input is far greater than the speed of combustion, and the mixing ratio of gas and air is difficult to control, resulting in incomplete combustion and large gas consumption; 2. Burner power Remains high, not suitable for materials that need to be heated and dried at low temperature
3. The source of infrared radiation is a heated metal mesh, resulting in uneven infrared radiation
The air flow blown in laterally has great damage to the high-temperature dry bulb radiation field, greatly weakening the radiation effect

Method used

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  • Method of Radiation Heating and Drying of Materials Using Reverse Infrared Radiation Generator
  • Method of Radiation Heating and Drying of Materials Using Reverse Infrared Radiation Generator
  • Method of Radiation Heating and Drying of Materials Using Reverse Infrared Radiation Generator

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Embodiment 1

[0053] A reverse gas infrared radiation generator, which includes an inlet 1, an injection tube 2, a diffusion chamber 3, and a combustion section 4 from top to bottom; wherein the outer walls of the injection tube 2, diffusion chamber 3, and combustion section 4 are continuously blown and cooled Wind achieves cooling. The inlet 1 includes a gas injection port 11 and an air inlet 12 ; the outer wall of the injection tube 2 includes cooling fins 23 , and the cooling fins 23 are evenly distributed on the outer wall of the injection tube 2 . The outer edge of the heat sink 23 is a circular sheet protruding; the inner side of the ejector tube 2 is a mixing part 21 and a diffusing part 22 from top to bottom, the mixing part 21 is a vertical hollow cylinder, and the diffusing part 22 is a vertical hollow cone Shaped cylinder, there is an outward inclination angle of 8° between the diffusion part 22 and the mixing part 21. The diffusion part 22 of the injection tube 2 is connected d...

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Abstract

The invention discloses a reverse infrared radiation machining method for drying materials. Combustion air flow is injected into an air flow inlet in a gas ejecting mode, gas and combustion air form premixed gas, the premixed gas is ignited by an igniter to burn, cooling air is blown to continuously cool an ejecting pipe and the outer lateral wall of a burning portion, and materials pass through a radiation area below the burning portion to receive radiation generated by burning of pre-burning mixed air to achieve heating drying. An infrared radiator of reverse gas is achieved, the burning speed is also reduced, the method is applicable to materials heated and dried at a low temperature and the effects of energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the fields of industrial heating and drying, in particular to a radiation processing method for realizing reverse combustion gas to generate infrared radiation to heat and dry materials. Background technique [0002] Utilizing the principle of thermal effect of infrared radiation on the resonance cracking of macromolecular water mass, it is a common technology in the field of industrial heating to evaporate and dry materials with infrared radiation. Compared with air convection drying, this technology has the advantages of low energy consumption and good drying quality. [0003] In practice, the generation methods of infrared radiation are mainly divided into two ways: electric heating ceramic plate radiation and electric heating infrared lamp tube. Both use electric energy to convert heat energy into secondary heating infrared radiation carrier. Among them, the electrothermal infrared lamp has the defects of easy short circu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D14/14F23D14/46F26B23/02
Inventor 徐进赖劲军
Owner 上海蓝炽热能科技有限公司
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