CN212467661U - High-efficient wet-type electric precipitation desulfurization system - Google Patents

Abstract

The utility model discloses a high-efficient wet-type electric precipitation desulfurization system belongs to desulfurizing tower technical field, comprising a tower body, the lateral wall and the top of tower body are equipped with flue gas inlet, exhanst gas outlet respectively, and the interior bottom of tower body is equipped with the thick liquid pond, install the oxygen intake pipe with the inside intercommunication in thick liquid pond on the lateral wall of tower body, the inside in thick liquid pond is equipped with a rabbling mechanism, the sewage pipes who communicates with the thick liquid pond is inside installed to the bottom of tower body, it sprays layer, one-level defogging layer, wet-type dust collector, washing and sprays layer and second grade defogging layer to be equipped with the desulfurization in proper order between flue gas inlet and the exhanst gas outlet. The utility model discloses a to two sealed controls respectively that hold the intracavity and let in the flue gas, make two sealed alkali lye that hold the intracavity can alternate carry out purification treatment to the second grade flue gas that lets in to make equipment can be under the state of not stopping, just can change the alkali lye that has become invalid, in order to guarantee the purification efficiency of equipment to the flue gas.

Description

High-efficient wet-type electric precipitation desulfurization system

Technical Field

The utility model relates to a desulfurizing tower technical field, specificly relate to a high-efficient wet-type electric precipitation desulfurization system.

Background

The wet-type electric dust remover has the function of trapping fine dust, has ideal trapping effects on fine, damp, viscous or high-specific-resistance dust, reduces the temperature of flue gas through convection cooling, promotes condensation, and can also trap acid mist.

Most of the existing desulfurization devices can not realize the replacement of the flue gas alkaline cleaning solution under the continuous work of equipment, so that the equipment can only replace the alkaline cleaning solution in a shutdown state, and the purification efficiency of the equipment is influenced, therefore, an efficient wet-type electric dust removal desulfurization system is urgently needed to be developed.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a high-efficient wet-type electric precipitation desulfurization system to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides a high-efficient wet-type electric precipitation desulfurization system, includes the tower body, the lateral wall and the top of tower body are equipped with flue gas inlet, exhanst gas outlet respectively, and the interior bottom of tower body is equipped with the thick liquid pond, install the oxygen intake pipe that communicates with the thick liquid pond inside on the lateral wall of tower body, the inside in thick liquid pond is equipped with first rabbling mechanism, the sewage pipes who communicates with the thick liquid pond inside is installed to the bottom of tower body, be equipped with desulfurization spray layer, one-level defogging layer, wet-type electric dust collector, washing spray layer and second grade defogging layer between flue gas inlet and the exhanst gas outlet in proper order, desulfurization spray layer passes through pipeline and thick liquid pond inside intercommunication, washing spray layer passes through the pipeline and is connected with external water source, every all install the circulating pump on the pipeline, be equipped with the casing that holds alkali lye between washing spray layer and the second grade defogg, and at least one shell is arranged, a vertically arranged partition plate is arranged in each shell, each partition plate is positioned on a vertical central line of the corresponding shell, the interior of each shell is divided into two independent sealed containing cavities by the partition plates, a gas pipe is vertically arranged in each sealed containing cavity, the top end of each gas pipe extends to the upper part of the corresponding shell, the top end of each shell is provided with a gas outlet communicated with the corresponding sealed containing cavity, each gas outlet is provided with a first electromagnetic valve fixedly connected with the top end of the corresponding shell, the side wall of the tower body is provided with a second-stage flue gas outlet positioned between the cleaning spraying layer and the shell at the lowest part, the second-stage flue gas outlet is provided with a connecting pipeline fixedly connected with the outer side wall, and the connecting pipeline is provided with a pump body, the connecting pipe passes the top intercommunication of tower body lateral wall and all gas-supply pipes, and all installs a second solenoid valve on the terminal surface that connecting pipe and every gas-supply pipe are connected, every sealed inside in appearance chamber all is equipped with a second rabbling mechanism, install on the lateral wall of tower body and correspond blow off pipe, the alkali lye input tube that sealed appearance intracavity portion communicates.

Preferably, first rabbling mechanism is the same with second rabbling mechanism's structure, and the rabbling mechanism includes driving motor, the rotation axis of being connected with the driving motor output and fixed the stirring leaf of locating on the rotation axis, the vertical setting of rotation axis in the sealed appearance intracavity, rotation axis level in the thick liquid pond sets up.

Preferably, the inside of tower body is equipped with the apron that covers the open end of thick liquid pond, and the middle part of apron has seted up the outlet to the bottom of outlet is equipped with the check valve with apron bottom fixed surface connection, the apron sets up to loudspeaker column structure, the outlet is located the least significant end of apron.

Preferably, the top end surface of the cover plate is provided with a filter cover for protecting the water outlet.

Preferably, still install an oxygen intake pipe with the inside flue gas passageway intercommunication of tower body on the lateral wall of tower body, two the oxygen intake pipe is connected with external oxygen pump jointly.

3. Advantageous effects

1. The utility model discloses the intercommunication of second grade flue gas vent and sealed appearance intracavity alkali lye carries out secondary purification treatment to the flue gas after spraying to guarantee this equipment to the purifying effect of the inside sulphide of flue gas, and through sealed appearance intracavity rabbling mechanism's setting, stir between filling its inside second grade flue gas and alkali lye, with the abundant reflection of sulphide and alkali lye in the promotion flue gas.

2. The utility model discloses a setting in two sealed appearance chambeies, make the staff to every sealed appearance chamber on the control of second solenoid valve, just can realize the control what of letting in the second grade flue gas in the appearance chamber to every sealed, this kind is to two sealed appearance intracavity lets in the difference control of flue gas, make two sealed alkali lye that hold the intracavity can alternate carry out purification treatment to the second grade flue gas that lets in, this kind purifies the setting of mode to the second grade flue gas alternating, make equipment can be under the state of not stopping, just can change the alkali lye that has become invalid to guarantee the purification efficiency of equipment to the flue gas.

3. The utility model discloses the inside rabbling mechanism's of thick liquid pond setting makes the inside oxygen of thick liquid pond can be more dissolve in the desulfurization solution to this provides strong condition for the reaction of desulfurization solution and sulphide, and sealed appearance intracavity portion rabbling mechanism's setting makes the second grade flue gas after the desulfurization can be comparatively abundant with sealed alkali lye that holds the intracavity react, carries out purification treatment, improve equipment's purifying effect again with this second grade smog after the desulfurization.

4. The utility model discloses apron horn-shaped structure's setting can spray layer spun liquid to the desulfurization and gather to the recovery and the reutilization that spray liquid, the setting of check valve on the outlet makes the check valve can only carry out decurrent transmission to the liquid of apron top, and can not enclose into the inside gaseous upwards transmission of cavity between apron and the thick liquid pond, make fill into the inside oxygen of thick liquid pond can be more dissolve in its inside desulfurization solution, use this to provide strong condition for desulfurization solution and sulfuration gas's reaction.

5. The utility model discloses setting up of filter mantle can filter floccule and precipitate in the liquid that sprays (the liquid after spun desulfurization solution reacts with the sulphide promptly), avoids its influence that leads to the fact to the check valve flow conductivity.

6. The utility model discloses the setting of two oxygen intake pipes on the tower body, the oxygen that makes external input can be respectively through the inside of different oxygen intake pipe inputs flue gas channel in thick liquid pond and the tower body to this guarantees that the inside oxygen that fills in the thick liquid pond can be more when dissolving in its inside desulfurization solution, also makes another oxygen intake pipe provide the condition for the reaction of the desulfurization solution that sprays in the flue gas channel and sulfurated gas, with the sulphide degradation in the promotion flue gas.

Drawings

Fig. 1 is a schematic front view of the internal structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1-tower body, 2-flue gas inlet, 3-flue gas outlet, 4-slurry pool, 5-desulfurization spray layer, 6-primary demisting layer, 7-wet type electric dust collector, 8-cleaning spray layer, 9-shell, 10-secondary demisting layer, 11-partition plate, 12-sealed cavity, 13-gas pipe, 14-rotating shaft, 15-stirring blade, 16-gas outlet, 17-first electromagnetic valve, 18-secondary flue gas outlet, 19-connecting pipeline, 20-second electromagnetic valve, 21-driving motor, 22-oxygen gas inlet pipe, 23-cover plate, 24-water outlet, 25-one-way valve, 26-filter cover, 27-blow-off pipe and 28-alkali liquor input pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1-2, an efficient wet-type electric dust removal desulfurization system comprises a tower body 1, wherein a flue gas inlet 2 and a flue gas outlet 3 are respectively arranged on the side wall and the top end of the tower body 1, a slurry tank 4 is arranged at the inner bottom of the tower body 1, an oxygen gas inlet pipe 22 communicated with the interior of the slurry tank 4 is arranged on the outer side wall of the tower body 1, a first stirring mechanism is arranged inside the slurry tank 4, a sewage discharge pipeline communicated with the interior of the slurry tank 4 is arranged at the bottom end of the tower body 1, a desulfurization spray layer 5, a primary defogging layer 6, a wet-type electric dust collector 7, a cleaning spray layer 8 and a secondary defogging layer 10 are sequentially arranged between the flue gas inlet 2 and the flue gas outlet 3, the desulfurization spray layer 5 is communicated with the interior of the slurry tank 4 through a pipeline, the cleaning spray layer 8 is connected with an external water;

a shell 9 for containing alkali liquor is arranged between the washing and spraying layer 8 and the second-stage demisting layer 10, the shell 9 is sealed, at least one shell 9 is arranged, a partition plate 11 which is vertically arranged is arranged in each shell 9, each partition plate 11 is positioned on the vertical central line of the corresponding shell 9, the interior of each shell 9 is divided into two independent sealed cavities 12 through the partition plate 11, a gas pipe 13 is vertically arranged in each sealed cavity 12, the top end of each gas pipe 13 extends to the upper part of the corresponding shell 9, the top end of each shell 9 is provided with a gas outlet 16 communicated with the corresponding sealed cavity 12, each gas outlet 16 is provided with a first electromagnetic valve 17 fixedly connected with the top end of the corresponding shell 9, the side wall of the tower body 1 is provided with a second-stage flue gas outlet 18 positioned between the washing and spraying layer 8 and the lowest shell 9, a connecting pipeline 19 which is fixedly connected with the outer side wall of the tower body 1 is arranged on the secondary flue gas exhaust port 18, a pump body is arranged on the connecting pipeline 19, the connecting pipeline 19 penetrates through the side wall of the tower body 1 to be communicated with the top ends of all the gas conveying pipes 13, a second electromagnetic valve 20 is arranged on the end face of the connecting pipeline 19 connected with each gas conveying pipe 13, and a second stirring mechanism is arranged inside each sealed containing cavity 12;

the first stirring mechanism and the second stirring mechanism are the same in structure, the stirring mechanism comprises a driving motor 21, a rotating shaft 14 connected with the output end of the driving motor 21 and a stirring blade 15 fixedly arranged on the rotating shaft 14, the rotating shaft 14 in the sealed cavity 12 is vertically arranged, the rotating shaft 14 in the slurry pool 4 is horizontally arranged, and the stirring mechanism in the slurry pool 4 is arranged, so that more oxygen in the slurry pool 4 can be dissolved in the desulfurization solution, and a powerful condition is provided for the reaction of the desulfurization solution and sulfide, and the stirring mechanism in the sealed cavity 12 is arranged, so that the desulfurized secondary flue gas can sufficiently react with the alkali liquor in the sealed cavity 12, and further purification treatment is performed on the desulfurized secondary flue gas, the purification effect of the equipment is improved, and a drain pipe 27 communicated with the corresponding sealed cavity 12 is arranged on the outer side wall of the tower body 1, An alkali liquid input pipe 28;

the tower body 1 is internally provided with a cover plate 23 covering the open end of the slurry pool 4, the middle part of the cover plate 23 is provided with a water outlet 24, the bottom end of the water outlet 24 is provided with a one-way valve 25 fixedly connected with the surface of the bottom end of the cover plate 23, the cover plate 23 is arranged into a horn-shaped structure, the water outlet 24 is positioned at the lowest end of the cover plate 23, the horn-shaped structure of the cover plate 23 is arranged, liquid sprayed by the desulfurization spraying layer 5 can be gathered so as to be convenient for recycling and reutilization of the sprayed liquid, the one-way valve 25 on the water outlet 24 ensures that the one-way valve 25 can only transmit the liquid above the cover plate 23 downwards but can not transmit the gas inside a cavity enclosed between the cover plate 23 and the slurry pool 4 upwards, oxygen filled inside the slurry pool 4 can be dissolved in the desulfurization solution inside the desulfurization solution, thereby providing a powerful condition for the reaction of the desulfurization solution and the sulfide gas, the top end surface of the cover plate 23 is provided, the filtering cover 26 is arranged to filter floccules and precipitates in the spraying liquid (i.e. the liquid after the reaction of the sprayed desulfurization solution and the sulfide) so as to avoid the influence on the liquidity of the check valve 25;

still install an oxygen intake pipe 22 with the inside flue gas passageway intercommunication of tower body 1 on the lateral wall of tower body 1, two oxygen intake pipes 22 are connected with external oxygen pump jointly, the setting of two oxygen intake pipes 22 on the tower body 1, make the outside oxygen of inputing can be inputed into the inside of flue gas passageway in thick liquid pond 4 and the tower body 1 through different oxygen intake pipes 22 respectively, when guaranteeing that the inside oxygen that fills in of thick liquid pond 4 can be more to dissolve in its inside desulfurization solution with this, also make another oxygen intake pipe 22 provide the condition for the reaction of the desulfurization solution that sprays in the flue gas passageway and sulfurated gas, in order to promote the interior sulphide degradation of flue gas.

The specific application process of the high-efficiency wet-type electric precipitation desulfurization system is as follows: when in use, the flue gas enters the inside of the tower body 1 through the flue gas inlet 2, the desulfurization solution in the slurry pool 4 can be fully and uniformly stirred by the stirring mechanism in advance, the solution amount of the oxygen in the desulfurization solution can be improved by stirring the desulfurization solution, so as to improve the subsequent desulfurization effect, the solution in the slurry pool 4 is conveyed to the double-layer desulfurization spraying layer 5 through a pipeline, the sulfide in the flue gas is absorbed into the solution by the solution in the slurry pool 4 through double-layer spraying, the oxygen filled in the flue gas channel in the tower body 1 can promote the desulfurization reaction, the desulfurized flue gas primarily removes gypsum slurry droplets through the two layers of first-level demisting layers 6, the flue gas continuously rises into the wet type electric dust collector 8 for dedusting and demisting, and the cleaning spraying layer 8 can intermittently spray the wet type electric dust collector 8 to prevent cathode lines from scaling through an external cleaning device (the cleaning device is a water tank containing clean water) during dedusting and demisting, secondly, the second-stage flue gas is conveyed into a gas conveying pipe 13 through a connecting pipeline 19 and enters the sealed containing cavities 12, so that the second-stage flue gas can be secondarily purified through the contact between alkali liquor in the sealed containing cavities 12 and the second-stage flue gas, secondly, water mist in the flue gas after the second-stage purification is removed through the second-stage defogging layer 10, the flue gas finally enters and is discharged through the flue gas outlet 3, when the second-stage flue gas reacts with the alkali liquor, the control of the amount of the second-stage flue gas introduced into each sealed containing cavity 12 can be realized through the control of the second electromagnetic valve 20 on each sealed containing cavity 12, the respective control of the introduction of the flue gas into the two sealed containing cavities 12 enables the alkali liquor in the two sealed containing cavities 12 to alternately purify the introduced second-stage flue gas, and the arrangement of the alternate purification mode of the second-stage flue gas enables the equipment to be capable of replacing the failed alkali liquor under the continuous state, so as to ensure the purification efficiency of the equipment to the flue gas;

the desulfurization sprays the apron 23 that layer 5 sprayed liquid after through horn-shaped structure and gathers, so that to spray recovery and reutilization of liquid, and through the setting of check valve 25 on outlet 24, transmit the inside to thick liquid pond 4 downwards of the liquid of apron 23 top, in order to realize the recycle to spraying liquid, and through the setting of filter mantle 26 on outlet 24, will spray liquid and flocculate and the precipitate in the liquid after spun desulfurization solution and sulphide reaction promptly, avoid its influence that causes the 25 circulations of check valve, so just accomplished this high-efficient wet-type electrostatic precipitation desulfurization system's use.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (5)

1. The utility model provides a high-efficient wet-type electric precipitation desulfurization system, includes tower body (1), the lateral wall and the top of tower body (1) are equipped with flue gas inlet (2), exhanst gas outlet (3) respectively, and the interior bottom of tower body (1) is equipped with slurry tank (4), install oxygen intake pipe (22) with slurry tank (4) inside intercommunication on the lateral wall of tower body (1), the inside of slurry tank (4) is equipped with first rabbling mechanism, the sewage pipes who communicates with slurry tank (4) inside is installed to the bottom of tower body (1), be equipped with desulfurization spray level (5), one-level defogging layer (6), wet-type electric dust collector (7), washing spray level (8) and second grade defogging layer (10) between flue gas inlet (2) and exhanst gas outlet (3) in proper order, desulfurization spray level (5) are through pipeline and slurry tank (4) inside intercommunication, the cleaning and spraying layer (8) is connected with an external water source through a pipeline, each pipeline is provided with a circulating pump, the cleaning and spraying device is characterized in that a shell (9) for containing alkali liquor is arranged between the cleaning and spraying layer (8) and the second-stage defogging layer (10), the shell (9) is sealed, at least one shell (9) is arranged, each shell (9) is internally provided with a vertically arranged partition plate (11), each partition plate (11) is positioned on a vertical central line of the corresponding shell (9), the interior of each shell (9) is divided into two independent sealed containing cavities (12) through the partition plate (11), a gas pipe (13) is vertically arranged in each sealed containing cavity (12), the top end of each gas pipe (13) extends to the upper side of the corresponding shell (9), the top end of each shell (9) is provided with a gas outlet (16) communicated with the corresponding sealed containing cavity (12), and all be equipped with on every gas vent (16) with correspond casing (9) top fixed connection's first solenoid valve (17), set up on the lateral wall of tower body (1) and be located the washing and spray second grade flue gas vent (18) between layer (8) and casing (9) of below, and be equipped with one on second grade flue gas vent (18) and set up in connecting tube (19) lateral wall fixed connection of tower body (1), and install the pump body on connecting tube (19), connecting tube (19) pass the top intercommunication of tower body (1) lateral wall and all gas-supply pipes (13), and all install a second solenoid valve (20) on the terminal surface that connecting tube (19) and every gas-supply pipe (13) are connected, every the inside of sealed appearance chamber (12) all is equipped with a second rabbling mechanism, install on the lateral wall of tower body (1) and correspond blow off pipe (27) of the inside intercommunication of sealed appearance chamber (12), An alkali liquor input pipe (28).

2. The efficient wet-type electric dust removal desulfurization system according to claim 1, wherein the first stirring mechanism and the second stirring mechanism have the same structure, the stirring mechanism comprises a driving motor (21), a rotating shaft (14) connected with the output end of the driving motor (21) and a stirring blade (15) fixedly arranged on the rotating shaft (14), the rotating shaft (14) in the sealed accommodating cavity (12) is vertically arranged, and the rotating shaft (14) in the slurry tank (4) is horizontally arranged.

3. The efficient wet-type electric dust removal and desulfurization system according to claim 1, wherein a cover plate (23) covering the open end of the slurry pool (4) is arranged inside the tower body (1), a water outlet (24) is formed in the middle of the cover plate (23), a check valve (25) fixedly connected with the bottom end of the cover plate (23) is arranged at the bottom end of the water outlet (24), the cover plate (23) is arranged to be of a horn-shaped structure, and the water outlet (24) is located at the lowest end of the cover plate (23).

4. The efficient wet-type electric precipitation desulfurization system of claim 3, wherein the top end surface of the cover plate (23) is provided with a filter cover (26) for protecting the water outlet (24).

5. The efficient wet-type electric precipitation desulfurization system of claim 3, wherein the outer side wall of the tower body (1) is further provided with an oxygen inlet pipe (22) communicated with a flue gas channel inside the tower body (1), and the two oxygen inlet pipes (22) are connected with an external oxygen pump together.

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