Method and apparatus for preparing sulphur dioxide gas

A sulfur dioxide and gas technology, applied in chemical instruments and methods, inorganic chemistry, sulfur compounds, etc., can solve problems such as difficult control of SO2 production, irregular pH value of sulfur smoked juice, difficult control of sublimated sulfur, etc., to improve cooling effect, relatively uniform proportion, and optimized structure

Inactive Publication Date: 2008-10-29
黄永春 +1
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Problems solved by technology

Therefore, the control of sulfur combustion is very important, but currently the production of SO 2 method is difficult to control sublimated sulfur or SO 3 generation; secondly, due to the production process, SO 2 The dosage of SO is not balanced, and needs to be changed according to production needs. Solid S is used for melting and burning, but it is only surface burning, and it is not easy to control SO. 2 pro...

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  • Method and apparatus for preparing sulphur dioxide gas

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Embodiment 1

[0033] A method of producing sulfur dioxide gas. The raw material used in this method is water-sulfur slurry, which is continuously and automatically fed into the sulfur-burning furnace through a feeding device, and a small amount of primary air is introduced to vaporize the water-sulfur slurry, and then secondary air is added to fully burn sulfur to form SO 2 gas, then SO 2 Gas cooling produces sulfur gas without SO 3 Purify sulfur gas; said water sulfur slurry is latex sulfur formed by mixing granular sulfur and water. In the water sulfur slurry, the weight percentage of sulfur and water is 40:60, which can also be increased or decreased to 35:65~60: 40; In addition, by adjusting the ratio of sulfur to water, the combustion temperature of water-sulfur slurry in the combustion chamber can be set at a certain value within 900°C to 1300°C, and within 900°C to 1300°C is exactly the sulfur combustion process. The temperature range in which sulfur oxides are produced.

[0034]...

Embodiment 2

[0037] A device for producing sulfur dioxide gas. The device is a supporting device for a method for producing sulfur dioxide gas described in Embodiment 1 of the present invention. It is a sulfur burning furnace composed of a combustion chamber, a safety cover 1 and a lower bottom 5 that are sealed and connected with it. 2 The gas cooling device is formed, and the combustion chamber is a vertical cylindrical container, and a porous dividing plate 9 (referring to Fig. 3) is arranged in the middle of the vertical cylindrical container to divide the combustion chamber into a primary combustion chamber 8 and a secondary combustion chamber 10. The ignition device is a hot air pipe 3 with a diameter of 0.5 to 2 cm installed on the bottom side of the primary combustion chamber. The lower part of the primary combustion chamber 8 has a primary air inlet pipe 4 connected tangentially to the furnace wall of the combustion chamber. The secondary combustion The lower part of the chamber 1...

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Abstract

The invention discloses a method for generating sulfur dioxide gas and a device thereof. The method takes water-sulfur slurry as raw material, the water-sulfur slurry is successively and automatically fed into a primary combustion chamber by a feeding device, firstly the water-sulfur slurry is vaporized by pumping in a small amount of primary air, then secondary air is added in so as to lead sulfur to be fully burned and to generate SO2 gas, furthermore, the SO2 gas is cooled so as to prepare purified sulfur gas. The water-sulfur slurry is emulsion colloid sulfur or suspended sulfur solution, which is prepared by mixing sulfur particles with water. The device used for producing the sulfur dioxide gas comprises a brimstone furnace which consists of a combustion chamber, a safety hood and a lower base, and a SO2 gas cooling device, wherein, the combustion chamber is a vertically cylindrical vessel, the middle part of the vessel is provided with a porous separator which divides the combustion chamber into a primary combustion chamber and a secondary combustion chamber, wherein, the bottom of the primary combustion chamber is provided with a feeding device, a heating device and a ignition device, and the lower parts of the primary combustion chamber and the secondary combustion chamber are respectively provided with a primary air inlet duct and a secondary air inlet duct. The content of sublimed sulfur in the SO2 gas generated by using the method and the device is zero or is close to zero, and no or very little SO3 is generated.

Description

Technical field: [0001] The invention relates to a production method and device for sulfur dioxide gas. Background technique: [0002] SO 2 It is an important auxiliary raw material in the sugar production process. It is combined with Ca(OH) in the clarification process 2 The reaction produces CaSO 3 , so that the colloidal pigment is removed by adsorption and the sugar juice is clarified; in addition, SO 2 It can weaken or inhibit the formation of new pigments in the process of sugar production, including clarification, evaporation and cooking, and can reduce the discoloration of white sugar during storage. It has a quite obvious effect on reducing colored substances in various sugar products. Therefore, SO 2 It plays a very important role in the production process of sugar factory. [0003] SO used in sugar mills 2 At present, it is obtained by burning sulfur. In the process of sulfur combustion, if the combustion control is not good, it will lead to the sublimation ...

Claims

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Application Information

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IPC IPC(8): C01B17/54
Inventor 黄永春蓝胜宇
Owner 黄永春
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