CN202715350U - Wet desulfurization adsorption tower with multi-effect turbulence system - Google Patents

Wet desulfurization adsorption tower with multi-effect turbulence system Download PDF

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Publication number
CN202715350U
CN202715350U CN 201220330202 CN201220330202U CN202715350U CN 202715350 U CN202715350 U CN 202715350U CN 201220330202 CN201220330202 CN 201220330202 CN 201220330202 U CN201220330202 U CN 201220330202U CN 202715350 U CN202715350 U CN 202715350U
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turbulent fluctuation
oxidation
stock tank
effect
pump
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CN 201220330202
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Chinese (zh)
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张晓玲
谭光之
魏屹立
郑鹏辉
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Xi'an XiKuang Environmental Protection Co Ltd
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Xi'an XiKuang Environmental Protection Co Ltd
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Abstract

The utility model belongs to the field of flue gas desulfurization environmental protection and particularly relates to a wet desulfurization adsorption tower with a multi-effect turbulence system. The prior art has the problems of high fault rate, difficulty in overhauling and maintenance, low utilization rate of oxidation air and the like. For overcoming the defects in the prior art, the utility model provides the technical scheme that the multi-effect turbulence system is arranged at the lower part of the adsorption tower; the multi-effect turbulence system consists of an oxidation air blower and a pulp chest turbulence pump as well as a turbulence pipe and an oxidation air pipe in a pulp chest; a stirring effect is provided by utilizing an impact force generated by the pulp chest turbulence pump; the oxidation air blower provides the forced oxidation air; and the pulp chest turbulence pump and the oxidation air blower are matched with each other to cooperatively improve the efficiency. According to the utility model, the system has a high reliability; the maintenance cost is low; and the utilization rate of the oxidation air can be improved.

Description

A kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system
Technical field
The utility model belongs to the flue gas desulfurization field of Environment Protection, is specifically related to a kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system.
Background technology
The absorption tower is the key equipment in the wet method fume desulfurizing system, and the form of spray column is adopted on absorption tower commonly used more at present, and stock tank is set at the bottom of tower, and the absorption tower is divided into from below to up stock tank district, spray district and removes the fog-zone.The spray district is provided with spraying layer, except the fog-zone is provided with demister, the stock tank district is that lime stone dissolving and desulfurization reaction product are separated out main reacting environment, and its method of supplying that stirs type and oxidation air will have important impact to the quality of desulfurization product and the normal operation of desulphurization system.
At present, for preventing that effectively the solid particle in the slurries from depositing in the stock tank bottom, the employing of most absorption tower arranges many side-feeding mixers slurries is stirred fully, the simultaneous oxidation air is the side-feeding mixer below of inserting stock tank by spray gun, relies on the effect of agitator that oxidation air is evenly sneaked in the slurries.The agitating mode of this stock tank and oxidation air method of supplying reliability are lower, and the inspection and maintenance work difficulty is larger, and the oxidation air utilization rate is low, and the quality of desulfurization product and the continuous and steady operation of system are had certain impact.
The utility model content
The utility model aims to provide a kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system, solves the problems such as the fault rate that tradition stirs and mode of oxidizing brings is high, repair and maintenance is difficult, the oxidation air utilization rate is lower.
The deficiency that exists for overcoming prior art, the technical scheme that the utility model provides is:
A kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system, comprise the absorption tower tower body, tower body bottom, described absorption tower is provided with stock tank and multiple-effect turbulent fluctuation system, it is characterized in that: described multiple-effect turbulent fluctuation system comprises the turbulent fluctuation pipe, the oxidation airduct, stock tank turbulent fluctuation pump and oxidation fan, described turbulent fluctuation pipe and oxidation airduct all are arranged in the stock tank and adopt ductwork type to arrange, a plurality of nozzles have been evenly arranged on the turbulent fluctuation pipe, evenly offer a plurality of apertures on the oxidation airduct, described stock tank turbulent fluctuation pump and oxidation fan all are arranged at the absorbing tower external body, the inlet of described stock tank turbulent fluctuation pump is connected with two inlet tubes, liquid outlet is connected with an outlet, two inlet tubes all are communicated with stock tank, outlet is communicated with the turbulent fluctuation pipe, and described oxidation fan is communicated with the oxidation airduct.
Above-mentioned oxidation airduct is arranged at 0.5 ~ 3m place, turbulent fluctuation pipe top.
Two inlet tubes that above-mentioned stock tank turbulent fluctuation pump connects are the setting that is arranged above and below, and outlet is arranged between two inlet tubes.
The utility model has following advantage and effect with respect to prior art:
1. reduced investment, system reliability is high: if adopt traditional side-feeding mixer, the large desulfurization tower generally all requires to install 4 ~ 5, and certain agitator fault can cause the local inequality that stirs, and employing stock tank turbulent fluctuation pump, then only need 2 (1 usefulness 1 is standby), owing to being provided with stand-by pump, system reliability is high.
2. the turbulent fluctuation stirring efficiency is high, and maintenance is convenient: the high efficiency of multiple-effect turbulent fluctuation system, and there is not the blade wear problem of agitator in the while, and maintenance cost is low, and can overhaul when pump shutdown, need not slurries in the emptying tower.
3. oxidation effectiveness is good: adopt the oxidation airduct gas distribution mode that adapts with stock tank turbulent fluctuation pump discharge turbulent fluctuation pipe, oxidation air flows out from the aperture of oxidation airduct, fully contacts with slurries, and the utilization ratio of oxidation air is high, more traditional torch-type can improve oxidation air utilization rate 30 ~ 50%.
4. the oxidation airduct is arranged at 0.5 ~ 3m place, turbulent fluctuation pipe top, can guarantee the sufficient oxidation of slurries.
5. two inlet tubes connecting of stock tank turbulent fluctuation pump be the setting that is arranged above and below, and this structure can effectively be processed the stock tank that the situation such as accident power-off causes and deposit, and stock tank is stirred again.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Wherein: 1-absorption tower tower body, 2-stock tank, 3-oxidation airduct, 4-turbulent fluctuation pipe, 5-stock tank turbulent fluctuation pump, 6-oxidation fan, 7-inlet tube, 8-outlet, 9-circulating pump, 10-spraying layer, the 11-demister, 12-smoke inlet, 13-exhanst gas outlet, 14-fresh water (FW) entrance.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
With reference to Fig. 1, a kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system, comprise absorption tower tower body 1, tower body 1 bottom, described absorption tower is provided with stock tank 2 and multiple-effect turbulent fluctuation system, described multiple-effect turbulent fluctuation system comprises turbulent fluctuation pipe 4, oxidation airduct 3, stock tank turbulent fluctuation pump 5 and oxidation fan 6, described turbulent fluctuation pipe 4 and oxidation airduct 3 all are arranged in the stock tank 2 and adopt ductwork type to arrange, a plurality of nozzles have been evenly arranged on the turbulent fluctuation pipe 4, evenly offer a plurality of apertures on the oxidation airduct 3, the diameter of aperture is 8mm ~ 20mm, described stock tank turbulent fluctuation pump 5 and oxidation fan 6 all are arranged at absorption tower tower body 1 outside, the inlet of described stock tank turbulent fluctuation pump 5 is connected with two inlet tubes 7, liquid outlet is connected with an outlet 8, two inlet tubes 7 are the setting that is arranged above and below, and outlet 8 is arranged between two inlet tubes 7, and two inlet tubes 7 all are communicated with stock tank 2, outlet 8 is communicated with turbulent fluctuation pipe 4, and described oxidation fan 6 is communicated with oxidation airduct 3.Above-mentioned oxidation airduct 3 is arranged at 0.5 ~ 3m place, turbulent fluctuation pipe 4 tops.
In system's running, former flue gas enters the absorption tower from the smoke inlet 12 at absorption tower tower body 1 middle part, finish washing, purifying with the desulfurization slurry counter current contacting that spraying layer 10 sprays, remove the droplet that wherein carries by demister 11 again, discharge from the exhanst gas outlet 13 at top, absorption tower at last, sprayed slurry is collected into the stock tank 2 of bottom, absorption tower, wherein contain the particles such as a large amount of calcium sulfate, calcium sulfite and lime stone, guarantee that under the effect of multiple-effect turbulent fluctuation system slurries do not produce precipitation and fouling, and fully oxidation.Multiple-effect turbulent fluctuation system is that the impulsive force of utilizing stock tank turbulent fluctuation pump 5 to produce provides stirring action, oxidation fan 6 provides the forced oxidation air, the corresponding configuration oxidation air distributes pipe network above turbulent fluctuation pipe 4, it is oxidation airduct 3, it is more even that the stirring action of turbulent fluctuation pipe 4 distributes oxidation air, improves the oxidation air utilization rate, and the turbulent fluctuation effect of oxidation air makes again stirring more abundant, both cooperatively interact, collaborative raising the efficiency.
When system normally moves, stock tank turbulent fluctuation pump 5 adopts low level suction inlet (i.e. the inlet tube 7 of below) to suck slurries, when the system of chance short time dead electricity causes the stock tank deposition, stock tank turbulent fluctuation pump 5 adopts high suction (i.e. the inlet tube 7 of top) to suck supernatant, stock tank 2 is stirred again, adopt again the low level suction inlet when treating normally to move.
For example: certain wet desulfurization of flue gas by limestone-gypsum method engineering, use a kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system described in the utility model, tower body 1 middle part in absorption tower arranges smoke inlet 12, the top arranges exhanst gas outlet 13, tower body 1 interior bottom in absorption tower is stock tank 2, top is provided with three layers of spraying layer 10 and demister 11, stock tank 2 inside are provided with turbulent fluctuation pipe 4 and oxidation airduct 3, tower body 1 outer setting in absorption tower has oxidation fan 6, stock tank turbulent fluctuation pump 5 and circulating pump 9, oxidation fan 6 and stock tank turbulent fluctuation pump 5 form multiple-effect turbulent fluctuation systems jointly with turbulent fluctuation pipe 4 and the oxidation airduct 3 of stock tank inside, circulating pump 9 and three layers of spraying layer 10 pass through pipeline communication, demister 11 is provided with automatic flushing apparatus, is connected with fresh water (FW) entrance 14.Stock tank turbulent fluctuation pump 5 is provided with one high and one low two inlet tubes 7 and 8, two inlet tubes 7 of an outlet all are communicated with stock tank 2, and outlet 8 is arranged in the middle of two inlet tubes 7 and with turbulent fluctuation pipe 4 and is communicated with, and guarantees that slurries are in stock tank 2 interior uniform distributions.The oxidation air that oxidation fan 6 blasts by oxidation airduct 3 in stock tank 2 interior even distributions.Stock tank turbulent fluctuation pump 5 and oxidation fan 6 respectively be provided with one for subsequent use.Oxidation airduct 3 is arranged in 1.5m place, turbulent fluctuation pipe 4 top, can guarantee the sufficient oxidation of slurries.In system's running, former flue gas enters the absorption tower from smoke inlet 12, the clean flue gas of finishing after desulfurizing and purifying and demist are dewatered is discharged from exhanst gas outlet 13, sprayed slurry is collected into the interior stock tank 2 of tower of bottom, absorption tower, wherein contain the particles such as a large amount of calcium sulfate, calcium sulfite and lime stone, guarantee that under the effect of multiple-effect turbulent fluctuation system slurries do not produce precipitation and fouling, and fully oxidation.

Claims (3)

1. wet desulphurization absorption tower with multiple-effect turbulent fluctuation system, comprise absorption tower tower body (1), the interior bottom of described absorption tower tower body (1) is provided with stock tank (2), it is characterized in that: described absorption tower tower body (1) bottom is provided with multiple-effect turbulent fluctuation system, described multiple-effect turbulent fluctuation system comprises turbulent fluctuation pipe (4), oxidation airduct (3), stock tank turbulent fluctuation pump (5) and oxidation fan (6), described turbulent fluctuation pipe (4) and oxidation airduct (3) all are arranged in the stock tank (2) and adopt ductwork type to arrange, the turbulent fluctuation pipe has been evenly arranged a plurality of nozzles on (4), the oxidation airduct evenly offers a plurality of apertures on (3), described stock tank turbulent fluctuation pump (5) and oxidation fan (6) all are arranged at absorption tower tower body (1) outside, the inlet of described stock tank turbulent fluctuation pump (5) is connected with two inlet tubes (7), liquid outlet is connected with an outlet (8), two inlet tubes (7) all are communicated with stock tank (2), outlet (8) is communicated with turbulent fluctuation pipe (4), and described oxidation fan (6) is communicated with oxidation airduct (3).
2. described a kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system according to claim 1, it is characterized in that: described oxidation airduct (3) is arranged at 0.5 ~ 3m place, turbulent fluctuation pipe (4) top.
3. described a kind of wet desulphurization absorption tower with multiple-effect turbulent fluctuation system according to claim 1 and 2, it is characterized in that: two inlet tubes (7) that described stock tank turbulent fluctuation pump (5) connects are the setting that is arranged above and below, and outlet (8) is arranged between two inlet tubes (7).
CN 201220330202 2012-07-10 2012-07-10 Wet desulfurization adsorption tower with multi-effect turbulence system Active CN202715350U (en)

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Application Number Priority Date Filing Date Title
CN 201220330202 CN202715350U (en) 2012-07-10 2012-07-10 Wet desulfurization adsorption tower with multi-effect turbulence system

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Application Number Priority Date Filing Date Title
CN 201220330202 CN202715350U (en) 2012-07-10 2012-07-10 Wet desulfurization adsorption tower with multi-effect turbulence system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102716660A (en) * 2012-07-10 2012-10-10 西安西矿环保科技有限公司 Wet desulphurization absorption tower with multiple-effect turbulence system
CN106178860A (en) * 2016-08-29 2016-12-07 金川集团股份有限公司 One utilizes continuous circulating liquid to absorb super low concentration SO2the device and method of flue gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102716660A (en) * 2012-07-10 2012-10-10 西安西矿环保科技有限公司 Wet desulphurization absorption tower with multiple-effect turbulence system
CN106178860A (en) * 2016-08-29 2016-12-07 金川集团股份有限公司 One utilizes continuous circulating liquid to absorb super low concentration SO2the device and method of flue gas

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