Gas flow equalizing device of spraying tower

A spray tower, gas technology, applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of lack of uniform flow, easy ash accumulation, water accumulation, etc., to avoid ash accumulation and improve the use of effect of life

Inactive Publication Date: 2014-08-06
CISDI ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this type of patent uses an arc-shaped deflector in the X=0 section, when the smoke contacts the arc-shaped deflector, the resistance in the direction of the smoke flow is the smallest, making it difficult for the smoke to diffuse in the X direction , with Figure 7 shown
When the difference between the flue gas inlet diameter and the tower body diameter is large, the flue gas distribution in the Z direction is relatively uniform, and there is basically no flow equalization effect in the X direction.
In addition, in the actual application process, due to the influence of the working environment in the spray tower, the arc-shaped flue gas equalization device is easy to accumulate dust, water, and scaling, which will affect the normal use of the equipment.

Method used

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  • Gas flow equalizing device of spraying tower
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  • Gas flow equalizing device of spraying tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1 As shown, the flow equalizing device is composed of five straight plates with a width of about one meter. The straight plates are arranged in a ladder shape with unequal intervals at the lower part of the spray tower. When the inlet gas passes through the first straight plate, part of the gas is blocked by the straight plate. Change direction, flow upwards, forming the first diversion, after the diversion effect of 5 straight plates, the flow distribution of the gas in the Z direction is basically uniform, as shown in Figure 4 shown. At the same time, in the x direction, due to the blocking effect of the straight plate, the gas flows to both sides after contacting the straight plate, realizing the flow distribution of the gas in the x direction, as shown in Figure 5 As shown, so as to realize the flow distribution of gas in the entire spray tower, the flow equalization effect diagram is shown in Figure 7 shown.

Embodiment 2

[0024] Embodiment 2: as figure 2 As shown, the flow equalizing device is composed of five arc-shaped plates with a width of about one meter. The arc-shaped plates are arranged in a ladder shape with unequal intervals at the lower part of the spray tower. Near the gas inlet side, due to the inherent characteristics of the flow field, the unevenness of the flow field is relatively large, and the use of curved plates can better solve the problem of uneven distribution of the flow field. The schematic diagram of the arc-shaped plate current equalization device is as follows: figure 2 As shown, the current equalization effect diagram is shown in Figure 8 shown.

Embodiment 3

[0025] Embodiment 3: as image 3 As shown, the flow equalizer consists of 2 curved plates with a width of about one meter and three straight plates with a width of about one meter. The arc-shaped plates and straight plates are arranged in a ladder shape with unequal intervals at the lower part of the spray tower. For construction and maintenance issues, set the two flow distribution plates near the gas inlet side as curved plates, and the other three plates as straight plates. Its current equalization effect diagram is as follows Figure 9 shown.

[0026] In summary, the three current equalization devices mentioned in the present invention are all composed of five steel plates with a width of about one meter (the steel plates can be straight plates, curved plates, curved plates+straight plates), the thickness of the steel plates is about 16mm, and the steel plates are in the The lower part of the spray tower is arranged in a ladder shape with unequal intervals. When the inl...

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Abstract

The invention discloses a gas flow equalizing device of a spraying tower. The device is characterized in that the gas flow equalizing device of the spraying tower comprises flow equalizing plates, wherein the flow equalizing plates are vertically and trapezoidally arranged at the bottom of the spraying tower at unequal intervals; the flow equalizing plates are trapezoidally arranged in direction vertical to a gas incoming direction at unequal intervals; meanwhile, the flow equalizing plates are vertically arranged in a Y direction; the flow equalizing plates are arc-shaped plates, straight plates or the combination of the arc-shaped plates and the straight plates for use. The flow equalizing device is capable of effectively solving the flow equalizing problem of the gas in X and Z directions under the condition that a great difference is formed between the gas inlet diameter and the tower body diameter; meanwhile, the problems of dust deposition, water deposition and scale formation of the flow equalizing device can be effectively solved. Meanwhile, the device is simple, durable and low in cost.

Description

technical field [0001] The invention relates to a flow equalizing device for a gas spray tower. Background technique [0002] Due to the advantages of energy saving, environmental protection, and good dust removal efficiency, more and more blast furnace gas purification processes in China have begun to use dry bag dust removal in recent years. However, the problems brought about by this process are also more obvious and common, that is, when the temperature drops, the acidic components in the clean gas after dedusting will be separated out, which will seriously corrode or even penetrate the gas pipe network and equipment in a short time, causing Safety accidents such as gas leakage have seriously affected the normal operation of blast furnace production. [0003] Spray tower deacidification process is the most widely used deacidification method in engineering at present, but due to the uneven distribution of gas flow, turbulent flow field, and excessive local flow velocity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/40
Inventor 钟渝钱卫强钟星立陈君张波
Owner CISDI ENG CO LTD
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