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Desulfurization and purification method and equipment for unpowered sintering machine by using two-step method

A sintering machine, two-step technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve problems such as unstable operation, system corrosion, low desulfurization rate, etc. The effect of low and high desulfurization rate

Inactive Publication Date: 2010-04-21
山西长林能源科技有限公司
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Problems solved by technology

[0003] The purpose of the technology of the present invention is to provide a purification and desulfurization process and device suitable for different types of sintering machine heads to discharge flue gas, so as to solve the problem that the existing traditional power plant boiler desulfurization technology cannot operate stably after being applied to the sintering machine, and the desulfurization rate is low. The problem of serious corrosion and high cost

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  • Desulfurization and purification method and equipment for unpowered sintering machine by using two-step method
  • Desulfurization and purification method and equipment for unpowered sintering machine by using two-step method
  • Desulfurization and purification method and equipment for unpowered sintering machine by using two-step method

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Embodiment Construction

[0025] see Figure 1 ~ Figure 4 , the present invention's two-step non-assisted sintering machine desulfurization purification device, including desulfurization reaction tower A, dust removal circulation system, desulfurization circulation system.

[0026] The structure of described desulfurization tower A (see Figure 2 ~ Figure 4 ) is: the upper end of the cylindrical tower body 3 is connected with a conical discharge port 9 with a small diameter at the upper end, and a cap type cover body 10 is installed above the conical discharge port 9 . In the middle of the tower body 3, there is an obliquely arranged bubble cap bottom plate 5, which divides the tower body 3 into upper and lower parts, and a plurality of bubble cap type flue gas risers 6 are arranged on the bubble cap bottom plate 5. The upper and lower regions of the blister bottom plate 5 are respectively the desulfurization reaction zone A1 and the washing and dust removal zone A2, and the desulfurization solution s...

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Abstract

The invention relates to desulfurization and purification method and equipment for an unpowered sintering machine by using a two-step method. The rear part of an induced draft fan of the sintering machine is provided with a desulfurization reaction tower which is divided into a water-washing dedusting zone and a desulfurization reaction zone. The purification treatment comprises the following steps: firstly, dust particulates in flue gas are removed in the water-washing dedusting zone, and then the flue gas enters into the desulfurization reaction zone through a bubble cap flue gas ascension pipe; and secondly, sulfur dioxide in the flue gas closely contacts a desulfurizer solution sprayed from top to bottom in the desulfurization reaction zone to react, and the flue gas is discharged into air after the sulfur dioxide is removed. The desulfurization reaction tower with low resistance can work by using the induced draft fan of the original sintering machine without an additional relay air blower to achieve the unpowered purpose. Compared with the traditional desulfurization device, the invention has the advantages of high desulfurization rate, low manufacturing cost, low operation cost, high degree of automation, simple operation, capability of continuous operation and safe and stable operation.

Description

technical field [0001] The invention relates to a process for desulfurizing and purifying flue gas discharged from a sintering machine in a steel plant and a device for implementing the process, which is suitable for desulfurization and flue gas purification of different forms of sintering machine flue gas. Background technique [0002] There is no economical and reliable desulfurization technology for the current flue gas desulfurization process of sintering machines in steel mills, and the desulfurization methods and equipment used in power plants have been unsuccessfully applied to sintering machines. These desulfurization methods and equipment generally cannot operate stably, and the desulfurization rate is low. The problem of serious system corrosion and high cost. How to develop a device that can stabilize desulfurization without adding excessive operating costs and one-time investment to the sintering process according to market conditions; how to develop a device tha...

Claims

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Application Information

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IPC IPC(8): B01D50/00
Inventor 李九林任贵平高文安杜军卫边红军何小刚何海平邢佳佳张环环
Owner 山西长林能源科技有限公司
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