CN201394405Y - Electro-bag compound dust precipitator - Google Patents

Abstract

The utility model discloses an electro-bag compound dust precipitator, which comprises a dust electrostatic dust precipitation unit and a cloth bag dust precipitation unit both of which are connectedinto a whole and also comprises a fume hardening and tempering system, consisting of a shell body, a water fog spraying device, a flow equalizing device and a drainage tank. The rear end of the shellbody is arranged at the front end of the electrostatic dust precipitation unit and is communicated with the electrostatic dust precipitation unit. The front end of the shell body is provided with an air inlet. The flow equalizing device comprises two sets of flow equalizing plates and one set of choke. The two sets of the flow equalizing plates are of perforated plate structure. The choke comprises a frame and a plurality of spoilers. The two sets of flow equalizing plates are arranged on the inner back side of the shell body in sequence and the choke is arranged in the shell body and is between the two sets of flow equalizing plates. The water fog spraying device comprises a water inlet pipe frame, a nozzle and the drainage tank. The part of the vertical water inlet pipe of the water inlet pipe frame is provided with the nozzle and is arranged in the shell body and on the front end part of the shell body. The horizontal water inlet pipe is arranged out of the shell body. The drainagetank is arranged on the lower part of the rear end of the shell body. The utility model not only has high dust removing efficiency and can prolong the service life of the cloth bag.

Description

Electric bag combined dust catcher

Technical field

The utility model relates to a kind of electric bag combined dust catcher, and it comprises electrostatic precipitation unit and bag-type dust unit.

Background technology

Electric bag combined dust catcher is widely used in the industries such as electric power, building materials, iron and steel, chemical industry, papermaking, food at present.Electric bag combined dust catcher comprises electrostatic precipitation unit and bag-type dust unit, and these two unit are connected as a whole.During electric bag combined dust catcher work, ash-laden gas at first directly enters its inside from the import of electrostatic precipitation unit, the charged back of grit is under the effect of electric field force, tend to gather dust electrode, the electrode that gathered dust captures, enter in the bag-type dust unit through the flue gas behind the electrostatic precipitation, the clean gas behind the cloth bag filtration enters air-purifying chamber and discharges from air outlet by exhaust blower again.Because the flue gas that directly enters into the electrostatic precipitation unit is concentration and temperature height not only, and dust specific resistance is also big, this had both influenced efficiency of dust collection, had shortened the service life of bag-type dust unit cloth bag again.

The utility model content

The technical problems to be solved in the utility model provides a kind of electric bag combined dust catcher, and it is the efficiency of dust collection height not only, and prolongs the service life of bag-type dust unit cloth bag.

In order to solve the problems of the technologies described above, a kind of electric bag combined dust catcher of the utility model, it contains electrostatic precipitation unit and bag-type dust unit, these two unit connect in aggregates, also contain the flue gas conditioning system, this system is by housing, the atomized water spray device, current equalizer and rhone are formed, the rear end of housing is arranged on the front end of described electrostatic precipitation unit and communicates with it, the front end of housing is provided with air inlet, current equalizer is made of two groups of homogenizing plates and flow plug, two groups of homogenizing plates are perforated plate construction, flow plug is made of framework and some spoilers, on some spoilers divide, following two ones, the spoiler on top equidistantly is arranged on from top to down in the framework and with horizontal plane and is inclined to identical angle, the spoiler of lower part and the spoiler on top are symmetricly set in the framework, two groups of homogenizing plates are successively set on the interior rear portion of housing, flow plug is arranged in the housing and between two groups of homogenizing plates, the atomized water spray device is made of water inlet pipe support and shower nozzle, the water inlet pipe support is made up of horizontal water inlet pipe and some vertical water inlet pipes, some vertical water inlet pipes vertically are distributed on the below of horizontal water inlet pipe, its upper end is arranged on the horizontal water inlet pipe and communicates with it, its lower end sealing, uniform several described shower nozzles on every vertical water inlet pipe, the part that vertical water inlet pipe of the water inlet pipe support of atomized water spray device is equipped with shower nozzle is positioned at housing and is positioned at the leading section of housing, its horizontal water inlet pipe is positioned at the outside of housing, and rhone is positioned at the below of housing rear end.

Described vertical water inlet pipe has 13, wherein respectively is provided with nine shower nozzles on vertical water inlet pipe of both sides, respectively is provided with 18 shower nozzles on other vertical water inlet pipe.

Because the front end in the electrostatic precipitation unit is provided with the flue gas conditioning system, be provided with atomized water spray device and current equalizer in the housing of this system, when flue gas when the air inlet of housing front end enters in it, flue gas at first contacts with the water smoke of atomized water spray device ejection, it is wet that dust in flue gas becomes, its weight increases, wet dust bigger in the flue gas drops to housing bottom greatly because of weight, discharge after entering rhone along the bottom, kind of dust is reduced like this, helps improving the efficiency of dust collection of electrostatic precipitation unit and bag-type dust unit; It is wet that dust in flue gas becomes, and improved dust specific resistance greatly, and this helps improving the efficiency of dust collection of electrostatic precipitation unit; It is wet that dust in flue gas becomes, and flue-gas temperature is reduced greatly, and this has prolonged the service life of bag-type dust unit cloth bag.When flue gas passes through current equalizer, the homogenizing plate that is positioned at the front portion in a part of dust in the flue gas and this device hits and bumps, lose the bottom that falls into housing behind the kinetic energy, enter rhone discharges along the bottom, this has further reduced the dust concentration of flue gas, the through hole of another part dust in this homogenizing plate in the flue gas moves backward, at this moment the size of the airflow direction of flue gas and flow velocity is under control, when flue gas passes through the flow plug of current equalizer, spoiler in dust in flue gas and this flow plug hits and bumps, lose the bottom that falls into housing behind the kinetic energy, this makes exhaust gas dust concentration obtain reduction again, flue gas by the gap between the spoiler continues motion backward, when being positioned at the homogenizing plate at rear portion, a part of dust in the flue gas and this plate hit to bump and lose the bottom that falls into housing behind the kinetic energy, enter rhone discharges along the bottom, another part dust in the flue gas is by the through hole in this plate, the airflow direction of flue gas and the size of flow velocity have obtained further control, and flue gas continuation at this moment is moved into the electrostatic precipitation unit backward and the bag-type dust unit carries out dedusting.In sum, flue gas is by after the flue gas conditioning system, and the concentration of flue gas, temperature and dust specific resistance have all obtained reduction, and this has not only improved efficiency of dust collection, and has prolonged the service life of bag-type dust unit cloth bag.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structure enlarged diagram of the atomized water spray device of the utility model electric bag combined dust catcher.

1. air inlets among the figure, 2. atomized water spray device, 3. before homogenizing plate, 4. flow plug, 5. back homogenizing plate, 6. electrostatic precipitation unit, 7. bag-type dust unit, 8. air outlet, 9. rhone, 10. framework, 11. spoiler, 12. housings, 13. horizontal water inlet pipes, 14. vertical water inlet pipes, 15. shower nozzles.

The specific embodiment

Among Fig. 1 and Fig. 2, electric bag combined dust catcher contains electrostatic precipitation unit 6 and bag-type dust unit 7, and these two unit connect in aggregates.Electric bag combined dust catcher also contains the flue gas conditioning system, and this system is made up of housing 12, atomized water spray device 2, current equalizer and rhone 9.The rear end of housing 12 is arranged on the front end of electrostatic precipitation unit 6 and communicates with it, and the front end of housing 12 is provided with air inlet 1.Current equalizer is made of preceding homogenizing plate 3, back homogenizing plate 5 and flow plug 4.Preceding homogenizing plate 3, back homogenizing plate 5 are perforated plate construction, and flow plug 4 is made of framework 10 and some spoilers 11.Upper and lower two ones of some spoilers 11 minutes, the spoiler on top equidistantly is arranged on from top to down in the framework 10 and with horizontal plane and is inclined to identical angle, the spoiler of lower part and the spoiler on top are symmetricly set in the framework 10, before homogenizing plate 3 and back homogenizing plate 5 be successively set on the interior rear portion of housing 12, flow plug 4 is arranged in the housing 12 and between preceding homogenizing plate 3 and back homogenizing plate 5.The atomized water spray device is made of water inlet pipe support, shower nozzle 15 and rhone 9.The water inlet pipe support is made up of horizontal water inlet pipe 13 and some vertical water inlet pipes 14, below, its upper end that some vertical water inlet pipes 14 vertically are distributed on horizontal water inlet pipe 13 be arranged on the horizontal water inlet pipe 13 and communicate with it, the sealing of its lower end, uniform several shower nozzles 15 on every vertical water inlet pipe 14.The part that vertical water inlet pipe 14 of the water inlet pipe support of atomized water spray device is equipped with shower nozzle 15 is positioned at housing 12 and is positioned at the leading section of housing 12, the outside that its horizontal water inlet pipe 13 is positioned at housing 12.Rhone 9 is positioned at the below of housing 12 rear ends.In the present embodiment, as shown in Figure 2, the vertical water inlet pipe 14 in the water inlet pipe support has 13, wherein respectively is provided with nine shower nozzles on vertical water inlet pipe of both sides, respectively is provided with 18 shower nozzles on other vertical water inlet pipe.During work, flue gas enters in it from the air inlet 1 of housing 12 front ends, and flue gas at first contacts with the water smoke of atomized water spray device ejection, it is wet that dust in flue gas becomes, its weight increases, and bigger wet dust enters rhone 9 back discharges because of weight drops to the bottom of housing 12 greatly in the flue gas along the bottom.When flue gas passes through current equalizer, a part of dust in the flue gas and the preceding homogenizing plate 3 in this device hit and bump, lose the bottom that kinetic energy falls into housing 12, enter rhone 9 discharges along the bottom, the through hole of another part dust in the flue gas in preceding homogenizing plate 3 moves backward, when flue gas passes through the flow plug 4 of current equalizer, spoiler 11 hits and bumps in dust in flue gas and the flow plug 4, lose the bottom that kinetic energy falls into housing 12, flue gas by the gap between some spoilers 11 continues motion backward, by back homogenizing plate 5 time, a part of dust in the flue gas and this plate 5 hit to bump and lose the bottom that kinetic energy falls into housing 12, enter rhone discharges along the bottom, another part dust in the flue gas is by the through hole in this plate 5, continuation is moved into electrostatic precipitation unit 6 backward and bag-type dust unit 7 carries out dedusting, and last clean gas is discharged from the air outlet of bag-type dust unit 7.

Claims (2)

1. electric bag combined dust catcher, it contains electrostatic precipitation unit and bag-type dust unit, these two unit connect in aggregates, it is characterized in that: also contain the flue gas conditioning system, this system is by housing, the atomized water spray device, current equalizer and rhone are formed, the rear end of housing is arranged on the front end of described electrostatic precipitation unit and communicates with it, the front end of housing is provided with air inlet, current equalizer is made of two groups of homogenizing plates and flow plug, two groups of homogenizing plates are perforated plate construction, flow plug is made of framework and some spoilers, on some spoilers divide, following two ones, the spoiler on top equidistantly is arranged on from top to down in the framework and with horizontal plane and is inclined to identical angle, the spoiler of lower part and the spoiler on top are symmetricly set in the framework, two groups of homogenizing plates are successively set on the interior rear portion of housing, flow plug is arranged in the housing and between two groups of homogenizing plates, the atomized water spray device is made of water inlet pipe support and shower nozzle, the water inlet pipe support is made up of horizontal water inlet pipe and some vertical water inlet pipes, some vertical water inlet pipes vertically are distributed on the below of horizontal water inlet pipe, its upper end is arranged on the horizontal water inlet pipe and communicates with it, its lower end sealing, uniform several described shower nozzles on every vertical water inlet pipe, the part that vertical water inlet pipe of the water inlet pipe support of atomized water spray device is equipped with shower nozzle is positioned at housing and is positioned at the leading section of housing, its horizontal water inlet pipe is positioned at the outside of housing, and rhone is positioned at the below of housing rear end.

2. electric bag combined dust catcher according to claim 1 is characterized in that: described vertical water inlet pipe has 13, wherein respectively is provided with nine shower nozzles on vertical water inlet pipe of both sides, respectively is provided with 18 shower nozzles on other vertical water inlet pipe.

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