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Multi-stage spray reaction tower

A spray reaction and reaction chamber technology, applied in the field of reaction towers, can solve the problems of low gas-liquid reaction efficiency, increase the load of the mist eliminator, blockage of the mist eliminator, etc. The effect of increasing the area and reducing the lift resistance

Active Publication Date: 2014-07-09
JIANGSU LANSHAN ENVIRONMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the spray area of ​​the traditional reverse spray reaction tower is limited, and the gas-liquid reaction efficiency is low. In order to increase the spray area, it is necessary to increase the diameter of the desulfurization tower, resulting in huge equipment and high cost
In addition, the rising gas of the reverse spray will inhibit the falling speed of the droplet particles, so the lower smoke velocity (generally 3-5m / s) must be controlled. Even so, the droplet particles smaller than 1mm are still difficult to fall, causing smoke The entrainment of more liquid droplets in the air increases the load on the subsequent demister, which is likely to cause clogging of the demister

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: The circular multi-stage spray reaction tower whose vertical partition is a vertical plate

[0044] See Figure 1~Figure 6 , the cross-section of the tower body 9 of the circular multi-stage spray reaction tower is circular. see Figure 1~Figure 6 , the liquid level 7 of the tower kettle of the tower body 9 has a set height, and above the liquid level 7 is the reaction zone. The vertical partitions include high-position partitions m, m', low-position partitions n and full partitions k, all of which are vertical plates consistent with the axial direction of the tower body 9. The reaction zone is divided into four fan-shaped reaction chambers with numbers 1, 2, 3, and 4 respectively by high-position partition m, low-position partition n, and high-position partition m' starting from full partition k ( figure 2 ). The first-stage reaction chamber 1 is adjacent to the end-stage reaction chamber 4, and the two are separated by a full partition k. The lower ...

Embodiment 2

[0046] Embodiment 2: the circular multi-stage spray reaction tower that the longitudinal partition is a vertical plate and

[0047] See Figure 8 , and see Figure 9~Figure 13 , the longitudinal partitions from the first-stage reaction chamber 1 to the final-stage reaction chamber 4 are alternately arranged as inclined plates and vertical plates, that is, the full partition k, the high-position partition m, the low-position partition n, and the high-position partition m 'Slanted slabs, vertical slabs, slanted slabs, and vertical slabs in sequence, the inclination angle α between each slanted slab and the tower body 9 is 5~30° (see Figure 10 , 12 ), it can be seen from the figure that from the first stage to the last stage, the radial distances of the gas inlet ends of the reaction chambers of each stage are larger than the radial distances of the gas outlet ends of the reaction chambers of the same stage. Its advantages are: the gas inlet cross-sectional area of ​​the reac...

Embodiment 3

[0049] Square multi-stage spray reaction tower

[0050] Such as Figure 14 , the cross-section of the tower body 9 is a square. The reaction area is divided into four triangular reaction chambers with numbers 1, 2, 3, and 4 by the high-position partition m, the low-position partition n, and the high-position partition m' sequentially from the full partition k, and the liquid phase material atomization nozzle 8 are respectively installed on the wall of the tower body corresponding to each reaction chamber 1, 2, 3, 4 in the way of radial injection. All the other structures are the same as in Embodiment 1, and are omitted.

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Abstract

The invention relates to a reaction tower suitable for mass transfer, heat transfer and chemical reaction of gas and liquid (including solid-containing slurry) two-phase or three-phase substances, in particular to a multi-stage spray reaction tower. A reaction area of the tower is divided into a plurality of reaction chambers by longitudinal partition plates sequentially staggered in height from a gas inlet to a gas outlet, the upper end edge of each high longitudinal partition plate is lapped with a tower top, the lower end edge of each high longitudinal partition plate is positioned above the liquid level of a tower bottom, a lower gas channel is formed between the lower end edge of each high longitudinal partition plate and the liquid level of the tower bottom, the lower end edge of each low longitudinal partition plate extends into the lower side of the liquid level of the tower bottom, the upper end edge of each low longitudinal partition plate is positioned below a tower top, an upper gas channel is formed between the upper end edge of each low longitudinal partition plate and the tower top, the reaction chambers are continuously communicated through the upper gas channels and the lower gas channels which are sequentially alternate, and a plurality of atomizing nozzles are mounted on a tower wall corresponding to each reaction chamber. Gas-liquid materials are in sequentially continuous multi-stage reaction, and compared with a traditional spray reaction tower with the height as same as that of the multi-stage spray reaction tower, the multi-stage spray reaction tower has the advantages that a gas flow path is prolonged by multiple times, and efficiency is improved.

Description

technical field [0001] The invention relates to a reaction tower suitable for mass transfer, heat transfer and chemical reaction between two-phase or three-phase substances of gas and liquid (including solid-containing slurry), especially a multi-stage spray reaction tower. Background technique [0002] The reaction tower is an important chemical unit equipment for mass transfer, heat transfer and completion of absorption, desorption, extraction or chemical reaction between substances. [0003] Gas-liquid two-phase or gas-liquid-solid three-phase chemical reactions often use spray (fog) reaction towers, that is, the liquid phase (including solid-containing slurry liquid) reacts with gas-phase substances in a dispersed and atomized manner. Traditional The spray (fog) reaction towers of the company are all in reverse spray mode, that is, the liquid is sprayed from top to bottom, the gas runs from bottom to top in the tower, and the gas and liquid substances run in reverse and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/26
Inventor 聂江宁凌斌
Owner JIANGSU LANSHAN ENVIRONMENT TECH
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