CN205613216U - Desulfurization wet electrostatic precipitator - Google Patents

Abstract

The utility model belongs to the technical field of the boiler fume emission purifies, a desulfurization dust remover is related to, especially relate to a desulfurization wet electrostatic precipitator. Including waste gas inlet pipe, flue gas outlet pipe and desulphurization unit, the desulphurization unit below is provided with the electrostatic precipitator device, the electrostatic precipitator device is connected with a wet dedusting device, wet dedusting device top is provided with the 2nd wet dedusting device, a wet dedusting device and the 2nd wet dedusting device adopt and remove dust with flue gas countercurrent contact's mode, a dust collector's below is provided with dust collecting tank and dust outlet pipe. The utility model discloses the flue gas has abundant contact with desulphurization unit and dust collector, and the desulfurization is removed dust thoroughly, and the purifying rate is high. Consequently the utility model discloses rational in infrastructure, desulfurization dust removal efficiency is high, equipment long service life, satisfies emission standard through this treatment of plants flue gas later.

Description

A kind of desulfurization wet cottrell

Technical field

The utility model belongs to boiler smoke discharge purification techniques field, relates to a kind of desulfurization and dedusting Device, particularly relates to a kind of desulfurization wet cottrell.

Background technology

Recently as industrial expansion, environmental pollution is also increasingly severe, and China holds the central and east Continuous experience haze, the formation of haze is inseparable with the PM2.5 content in air, severe contamination Environment, is detrimental to health.Desulfurization and dedusting be in industrial processes produce fume emission it Front had to through process, be divided into wet method and dry method two kinds, and the industry on existing market Gas melting furnace flue disposal of pollutants equipment is cyclone desulfuration cleaner mostly, and this equipment has necessarily Defect, such as flue gas causes the harmful components such as dust in the device interior time of staying compared with short-range missile and removes Thorough not, flue gas is insufficient with the chemical reaction of alkaline water, causes the sulfide in flue gas can not Absorbed completely, be discharged in air the Harm and control causing acid rain etc. to pollute environment, existing dedusting Mostly there is the undesirable problem of udst separation effect in device.

Content of the invention

Mostly there is the undesirable problem of udst separation effect for tradition deduster in the utility model And a kind of novel desulfurization wet cottrell is proposed.

In order to achieve the above object, the utility model is to use following technical scheme to realize:

A kind of desulfurization wet cottrell, including waste gas inlet pipe, flue gas outlet pipe and desulfurizer, Being provided with electrostatic precipitator below described desulfurizer, described electrostatic precipitator is connected with the first wet type and removes Dirt device, described first wet dust separater is provided above the second wet dust separater, described first wet type Dust arrester and the second wet dust separater use the mode with flue gas counter current contacting to carry out dedusting, and described the The lower section of one dust arrester is provided with dust collecting groove and dust export pipe.

As preferably, described desulfurizer includes organizing calcium hydroxide contactor, described many group calcium hydroxide contactors more Inside is filled with granular calcium hydroxide filler, with the entering of electrostatic precipitator below described calcium hydroxide contactor It is connected at Kou.

As preferably, described first wet dust separater and the second wet dust separater are equipped with spray nozzle type water outlet Mouthful, it is provided with multiple shower nozzle, the plurality of shower nozzle at described second wet dust separater and flue gas contact position It is horizontally staggered placement.

As preferably, described dust export pipe is positioned at below dust collecting groove, and described dust export pipe is arranged Having dust filtering device, the outlet of described dust filtering device is connected with circulating water line.

As preferably, described desulfurizer internal side wall is coated with one layer of polytetrafluorethylecoatings coatings.

Compared with prior art, advantage of the present utility model and having the active effect that

1. first the utility model flue gas contact with desulfurizer, is then passed through electrostatic and removes After dirt device, entering back into two sections of wet dust separaters, flue gas has long enough in deduster The time of staying, flue gas has with desulfurizer and dust arrester and sufficiently contacts, and desulfurization removes Dirt is thorough, and purifying rate is high.

2. flue-gas flow direction is contrary with the water (flow) direction in dust arrester, and flue gas and water are inverse Stream contact, improves the de-dirt effect of deduster, and the water after dust arrester utilizes Use through filtering Posterior circle, reduce the consumption of water, saved cost.And desulfurizer It is coated with one layer of polytetrafluorethylecoatings coatings on inwall, reduce its extent of corrosion, add equipment Service life.Therefore the utility model is rational in infrastructure, desulfurization and dedusting rate high, service life of equipment Long, the flue gas after processing through this equipment meets discharge standard.

Brief description

Fig. 1 is desulfurization wet cottrell structural representation of the present utility model.

Each reference is: 1 waste gas inlet pipe, 2 flue gas outlet pipes, 3 desulfurizers, 4 electrostatic precipitators, 5 first wet dust separaters, 6 second wet dust separaters, 7 dusts Feeder, 8 dust export pipes, 9 shower nozzles.

Detailed description of the invention

In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, under The utility model is described further by face in conjunction with the accompanying drawings and embodiments.It should be noted that In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.

Elaborate a lot of detail in the following description in order to fully understand that this practicality is new Type, but, the utility model can be different from other modes described here with employing to be implemented, Therefore, the utility model is not limited to the restriction of the specific embodiment of specification described below.

Embodiment 1, the desulfurization wet scrubber device that the present embodiment provides includes waste gas inlet Pipe the 1st, flue gas outlet pipe 2, is communicated with desulfurizer 3 below waste gas inlet pipe 1, It is provided with electrostatic precipitator 4 below desulfurizer 3, and electrostatic precipitator 4 is connected with One wet dust separater 5, the first wet dust separater 5 is provided above the second wet dust removal dress Put 6.First wet dust separater 5 and the second wet dust separater 6 use in the present embodiment Carrying out dedusting with the mode of flue gas counter current contacting, the lower section of the first wet dust separater 5 is arranged Have dust collecting groove 7 and dust export pipe 8.

In order to improve the desulfurized effect of desulfurizer further, the structure of desulfurizer 3 includes many Group calcium hydroxide contactor, is filled with granular calcium hydroxide filler inside many group calcium hydroxide contactors, It is connected with the porch of electrostatic precipitator 4 below calcium hydroxide contactor, take off through calcium hydroxide Flue gas after sulphur just can enter electrostatic precipitator 4 and carry out electrostatic precipitation.

In order to improve dust removing effects, when whole device uses, flue gas first passes around flue gas Inlet tube 1 enters desulfurizer 3, and flue gas completes laggard in meditation through desulfurizer 3 desulfurization Electric dust collector 4 carries out rough dusting process, the dust in major part flue gas and sulfide quilt Remove, after this two procedures, there remains part dust and the flue gas entrance first of impurity is wet The rough dusting that formula dust arrester 5 continues, the first wet dust separater 5 is inverse with flue gas Stream contact, the relatively pure flue gas flowing out after the first wet dust separater 5 enters the Two wet dust separaters 6 carry out thorough dedusting, and the second wet dust separater 6 outermost is provided with many Individual shower nozzle 9, and multiple shower nozzle 9 is staggeredly placed in the horizontal direction, the second wet dust separater 6 Shower nozzle 9 hole less, pressure is also relatively big, is possible not only to remove the dust remaining in flue gas, And other harmful substance such as sulfide, nitride etc. can be removed, thus ensure that The disposed of in its entirety effect of flue gas.

In order to reduce the water consumption of whole device, dust export pipe 8 is positioned under dust collecting groove 7 Side, is provided with dust filtering device (its concrete structure not shown in figure) on dust export pipe 8, It is connected with circulating water line (its concrete structure not shown in figure) in dust filtering device outlet. Flow out from the first wet dust separater 5 and the second wet dust separater 6 and connect with flue gas Water after touch enters circulating water line after dust filtering device filtration, is circulated utilization, Thus save the consumption of water, cost-effective.

In order to improve the service life of desulfurizer, desulfurizer 3 internal side wall is coated with one Layer polytetrafluorethylecoatings coatings, polytetrafluoroethylmaterial material chemical stability is good, and anti-rotten effect is strong, Desulfurizer 3 is internal to be arranged this coating and can effectively reduce in flue gas the materials such as sulfide to setting Standby corrosion, thus increase the service life of desulfurizer equipment, mitigate maintenance of equipment and replacing Cost.

The above, be only preferred embodiment of the present utility model, is not to this practicality The restriction of novel other forms of work, any those skilled in the art take off possibly also with above-mentioned The technology contents showing is changed or is modified as the Equivalent embodiments of equivalent variations is applied to other necks Territory, but every without departing from technical solutions of the utility model content, according to skill of the present utility model Any simple modification, equivalent variations and the remodeling that above example is made by art essence, still falls within The protection domain of technical solutions of the utility model.

Claims (5)

1. a desulfurization wet cottrell, it is characterized in that: include waste gas inlet pipe, flue gas outlet pipe and desulfurizer, it is provided with electrostatic precipitator below described desulfurizer, described electrostatic precipitator is connected with the first wet dust separater, described first wet dust separater is provided above the second wet dust separater, described first wet dust separater and the second wet dust separater use the mode with flue gas counter current contacting to carry out dedusting, and the lower section of described first wet dust separater is provided with dust collecting groove and dust export pipe.

2. a kind of desulfurization wet cottrell according to claim 1, it is characterized in that: described desulfurizer includes organizing calcium hydroxide contactor more, it is filled with granular calcium hydroxide filler inside described many group calcium hydroxide contactors, be connected with the porch of electrostatic precipitator below described calcium hydroxide contactor.

3. a kind of desulfurization wet cottrell according to claim 2, it is characterized in that: described first wet dust separater and the second wet dust separater are equipped with spray nozzle type delivery port, being provided with multiple shower nozzle at described second wet dust separater and flue gas contact position, the plurality of shower nozzle is horizontally staggered placement.

4. a kind of desulfurization wet cottrell according to claim 3, it is characterized in that: described dust export pipe is positioned at below dust collecting groove, being provided with dust filtering device on described dust export pipe, the outlet of described dust filtering device is connected with circulating water line.

5. a kind of desulfurization wet cottrell according to claim 4, it is characterised in that: it is coated with one layer of polytetrafluorethylecoatings coatings in described desulfurizer internal side wall.