CN210278776U - Desulfurization, dust removal and ultralow emission integrated tower for small and medium-sized boilers - Google Patents

Abstract

The utility model discloses a middle-size and small-size boiler desulfurization removes dust and ultralow integrative tower that discharges relates to boiler flue gas purification equipment technical field, the utility model discloses a thick liquid oxidation circulation pond module, flue gas entry module, spray module, ultralow dust removal defogging module, chimney module, thick liquid oxidation circulation pond module, flue gas entry module, spray module, ultralow dust removal defogging module, chimney module are in proper order from up arranging the distribution down, be provided with the flue gas import in the flue gas entry module, the top of chimney module is provided with the exhanst gas outlet. Through setting up gaseous accelerating tube and honeycomb duct for gaseous when entering into round platform shape casing inside, be along the inside tangential direction of round platform shape casing, and gaseous relative velocity is great, makes the particulate matter in the flue gas obtain great centrifugal force in quick rotation's air current, is separated out after colliding with the inner wall of casing more easily under the effect of this centrifugal force.

Description

Desulfurization, dust removal and ultralow emission integrated tower for small and medium-sized boilers

Technical Field

The utility model relates to a boiler flue gas purification equipment technical field, more specifically relate to a middle-size and small-size boiler desulfurization dust removal ultralow discharges integrative tower.

Background

The flue gas generated by coal-fired boiler contains a large amount of pollutants, and the atmospheric pollutants are required to pass through a denitration/dedusting/desulfurization device to remove NOx, dust and SO in the atmospheric pollutants_XAnd the like. With the increasing discharge amount of industrial pollutants in the atmosphere, the haze problem on the national scale is frequent in recent years. Therefore, the nation sets a stricter emission policy, and the ultra-low emission requirements of the smoke dust are continuously provided for various industrial industries after the ultra-low emission requirements of the coal-fired power plant are provided. Dust removal and demisting of wet flue gas is a very important part in order to achieve ultra-low emissions. And wet-type electrostatic precipitator on the market not only initial stage input cost is high and the operation maintenance cost is high, can not accomplish economic effectual flue gas smoke and dust minimum emission index. The existing flue gas desulfurization dust removal device has relatively long field construction period and large occupied space. Therefore, the desulfurization and dedusting ultra-low emission integrated tower for the small and medium-sized boilers is provided to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the site construction period of the existing flue gas desulfurization dust removal device is relatively long and the occupied space is large, the utility model provides a middle and small boiler desulfurization dust removal ultralow emission integrated tower.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a middle-size and small-size boiler desulfurization dust removal ultralow emission integrative tower, includes thick liquid oxidation circulation tank module, flue gas entry module, sprays module, ultralow dust removal defogging module, chimney module, thick liquid oxidation circulation tank module, flue gas entry module, spray module, ultralow dust removal defogging module, chimney module are from up arranging the distribution down in proper order, be provided with the flue gas import in the flue gas entry module, the top of chimney module is provided with the exhanst gas outlet.

Furthermore, an oxidizing air interface, a pulse suspension pump interface and a circulating slurry pump interface are arranged in the slurry oxidation circulation tank module, and a circulating slurry pump is arranged outside the slurry oxidation circulation tank module.

Further, an accident spraying system is arranged inside the smoke inlet module.

Further, the inside that sprays the module is provided with four layers of filter screen, four layers the bottom of filter screen all is provided with the high-efficient nozzle of the one-way dual spray of a plurality of, the outside that sprays the module sets up the desulfurization thick liquid holding vessel, the output of circulation thick liquid pump and the end intercommunication of intaking of desulfurization thick liquid holding vessel, the intercommunication has the transfer line between the end of intaking of the play water end of desulfurization thick liquid holding vessel and the high-efficient nozzle of one-way dual spray, be provided with the suction pump of taking the inside desulfurization thick liquid of desulfurization thick liquid holding vessel out on the transfer line.

Furthermore, a first gas exchange chamber is arranged inside the ultra-low dedusting and demisting module, a sealing plate capable of blocking the flue gas from traveling upwards is arranged at the top of the first gas exchange chamber, the bottom of the first gas exchange chamber is communicated with a plurality of gas inlet pipes, a plurality of gas accelerating pipes are communicated around the first gas exchange chamber, a plurality of truncated cone-shaped shells matched with the gas accelerating pipes are arranged outside the ultra-low dedusting and demisting module, the area of the top of each truncated cone-shaped shell is smaller than that of the bottom of each truncated cone-shaped shell, a plurality of through holes matched with the gas accelerating pipes are arranged around the ultra-low dedusting and demisting module, triangular shells are communicated with the bottoms of the truncated cone-shaped shells, the bottoms of the truncated cone-shaped shells are equal to that of the tops of the triangular shells, and discharge holes are formed in the bottoms of the triangular shells, the bottom of triangle-shaped casing is located discharge gate department and all communicates there is the collection box, a plurality of the top of round platform shape casing all communicates there is the air duct, and the bottom of a plurality of air duct all extends to the bottom of round platform shape casing, the inside of ultralow dust removal defogging module and the top that is located the closing plate are provided with the gaseous exchange chamber of second, a plurality of the top of air duct all communicates with the gaseous exchange chamber of second through the elastic tube, the ultralow dust removal defogging module is last to be provided with the opening of a plurality of and elastic tube looks adaptation, the inside top of the gaseous exchange chamber of second is provided with the air-blower, a plurality of gas vent has been seted up at the top of the gaseous exchange chamber of second.

Furthermore, the sectional area of the inner pipeline of each of the plurality of gas accelerating tubes is gradually reduced along with the gas flowing direction, and a flow guide tube for guiding gas to enter the inside of the truncated cone-shaped shell along the tangential direction is arranged at the communication position of each of the plurality of gas accelerating tubes and the truncated cone-shaped shell.

Furthermore, a sulfur dioxide detector is arranged at the flue gas outlet on the chimney module.

The working principle is as follows: the slurry oxidation circulation tank module is externally provided with a circulating slurry pump which is connected with a circulating slurry pump interface of the slurry oxidation circulation tank module to realize circulating spraying of slurry in the tower, an oxidation air interface and a pulse suspension pump interface which are reserved with the slurry oxidation circulation tank module are used for connecting an oxidation air distribution pipe and a slurry suspension pipe which are integrated in the slurry oxidation circulation tank module, slurry in the slurry oxidation circulation tank module is ensured to form a suspension state and have sufficient oxygen for chemical reaction, an accident spraying system is arranged in the flue gas inlet module to effectively prevent accidents caused by overhigh temperature at the flue gas inlet, the spraying module is arranged, the desulfurization slurry sprayed out of the spraying module can carry out desulfurization treatment on air, and the ultra-low dust and mist removal module is arranged to carry out dust removal treatment on the desulfurized air to further purify the flue gas, whether the discharged gas meets the emission standard or not can be effectively monitored by arranging the sulfur dioxide detector on the chimney module. .

The utility model has the advantages as follows:

1. the utility model discloses simple structure, convenient to use, through the circulating thick liquid pump interface connection who sets up circulating thick liquid pump and thick liquid oxidation circulation tank module with thick liquid oxidation circulation tank module outside, realize realizing the circulation to the thick liquid in the tower and spray, through oxidation wind interface and the pulse suspension pump interface of reserving with thick liquid oxidation circulation tank module, connect the inside integrated oxidation wind distribution pipe of thick liquid oxidation circulation tank module and thick liquid suspension pipe, guarantee that the thick liquid forms the suspended state and has sufficient oxygen to carry out the chemical reaction in the thick liquid oxidation circulation tank module; an accident spraying system is arranged in the flue gas inlet module to effectively prevent accidents caused by overhigh temperature at the flue gas inlet; by arranging the spraying module, the desulfurization slurry sprayed out by the spraying module can be used for carrying out desulfurization treatment on air; by arranging the ultra-low dedusting and demisting module, the desulfurized air can be subjected to dedusting and demisting treatment, so that the flue gas is further purified; whether the discharged gas meets the emission standard or not can be effectively monitored by arranging the sulfur dioxide detector on the chimney module. The integrated tower-shaped desulfurization and dust removal device is set into an integrated tower shape formed by five modules, so that the problems that the site construction period of the existing flue gas desulfurization and dust removal device is relatively long and the occupied space is large are solved.

2. The utility model discloses simple structure, high durability and convenient use, through setting up the air-blower, the air-blower can take out the inside of round platform shape casing with the flue gas after the processing of spraying, thereby the inside at round platform shape casing forms the air current of vortex form, particulate matter in the flue gas is along with obtaining great centrifugal force in the air current of quick rotation, the inner wall of casing is separated out after bumping under the effect of this centrifugal force, thereby in dropping the collection box, the flue gas of further purification can be taken out from the air duct again, the mode of this kind of defogging dust removal belongs to whirlwind processing formula, and has simple structure, and the operation elasticity is big, high efficiency, management and maintenance convenience, low price's advantage.

3. The utility model discloses simple structure, convenient to use through setting up gaseous accelerating tube and honeycomb duct for gaseous when entering into round platform shape casing inside, be along the inside tangential direction of round platform shape casing, and gaseous relative velocity is great, makes the particulate matter in the flue gas obtain great centrifugal force in the air current of quick rotation, is separated out after colliding with the inner wall of casing more easily under the effect of this centrifugal force.

Drawings

Fig. 1 is a schematic diagram of a module structure of the present invention;

fig. 2 is a schematic diagram of the internal structure of the module of the present invention;

FIG. 3 is a schematic view of the first gas exchange chamber of the present invention;

fig. 4 is a schematic view of the connecting structure of the truncated cone-shaped shell and the gas accelerating tube of the present invention.

Reference numerals: 1-slurry oxidation circulation pool module, 2-flue gas inlet module, 3-spraying module, 31-filter screen, 32-one-way double-nozzle high-efficiency nozzle, 33-desulfurized slurry storage tank, 4-ultra-low dedusting and demisting module, 41-first gas exchange chamber, 42-gas inlet pipe, 43-gas accelerating pipe, 44-circular truncated cone-shaped shell, 45-recycling box, 46-gas guide pipe, 47-second gas exchange chamber, 48-blower, 49-sealing plate, 410-triangular shell, 411-flow guide pipe, 5-chimney module and 6-sulfur dioxide detector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Please refer to fig. 1-2, the utility model provides a middle-size and small-size boiler desulfurization dust removal ultralow emission integrative tower, including thick liquid oxidation circulation tank module 1, flue gas entry module 2, spray module 3, ultralow dust removal defogging module 4, chimney module 5, thick liquid oxidation circulation tank module 1, flue gas entry module 2, spray module 3, ultralow dust removal defogging module 4, chimney module 5 are in proper order from up arranging the distribution down, are provided with the flue gas import on the flue gas entry module 2, and chimney module 5's top is provided with the exhanst gas outlet.

In the embodiment, an oxidizing air interface and a pulse suspension pump interface are arranged in the slurry oxidizing circulation tank module 1, circulation thick liquid pump interface, the outside of thick liquid oxidation circulation pond module 1 is provided with circulation thick liquid pump, the inside of flue gas entry module 2 is provided with accident spraying system, the inside that sprays module 3 is provided with four layers of filter screen 31, the bottom of four layers of filter screen 31 all is provided with the high-efficient nozzle 32 of the one-way two shower nozzles of a plurality of, the outside that sprays module 3 sets up desulfurization thick liquid holding vessel 33, the output of circulation thick liquid pump and the end intercommunication of intaking of desulfurization thick liquid holding vessel 33, the intercommunication has the transfer line between the end of intaking of the play water end of desulfurization thick liquid holding vessel 33 and the high-efficient nozzle 32 of one-way two shower nozzles, be provided with the suction pump of taking out the inside desulfurization thick liquid of desulfurization thick liquid holding vessel 33 on the transfer line, it is.

The slurry in the tower is circularly sprayed by arranging a circulating slurry pump outside the slurry oxidation circulating pool module 1 and connecting the circulating slurry pump with a circulating slurry pump interface of the slurry oxidation circulating pool module, and an oxidation air distribution pipe and a slurry suspension pipe integrated in the slurry oxidation circulating pool module are connected through an oxidation air interface and a pulse suspension pump interface reserved in the slurry oxidation circulating pool module 1, so that the slurry in the slurry oxidation circulating pool module is ensured to form a suspension state and have sufficient oxygen for chemical reaction; an accident spraying system is arranged in the flue gas inlet module 2 to effectively prevent accidents caused by overhigh temperature at the flue gas inlet; by arranging the spraying module 3, the desulfurization slurry sprayed out by the spraying module can be used for carrying out desulfurization treatment on air; the ultra-low dedusting and demisting module 4 is arranged, so that the desulfurized air can be subjected to dedusting and demisting treatment, and the flue gas is further purified; whether the discharged gas meets the emission standard or not can be effectively monitored by arranging the sulfur dioxide detector 6 on the chimney module 5. The integrated tower-shaped desulfurization and dust removal device is set into an integrated tower shape formed by five modules, so that the problems that the site construction period of the existing flue gas desulfurization and dust removal device is relatively long and the occupied space is large are solved.

Example 2

Referring to fig. 2-3, the present embodiment is further optimized based on embodiment 1, specifically, a first gas exchange chamber 41 is disposed inside the ultra-low dust and mist removing module 4, a sealing plate 49 capable of blocking the upward movement of the flue gas is disposed on the top of the first gas exchange chamber 41, a plurality of gas inlet pipes 42 are communicated with the bottom of the first gas exchange chamber 41, a plurality of gas accelerating pipes 43 are communicated with the periphery of the first gas exchange chamber 41, a plurality of circular truncated cone-shaped housings 44 adapted to the gas accelerating pipes 43 are disposed outside the ultra-low dust and mist removing module 4, the area of the top of the circular truncated cone-shaped housing 44 is smaller than that of the bottom of the circular truncated cone-shaped housing 44, a plurality of through holes adapted to the gas accelerating pipes 43 are disposed on the periphery of the ultra-low dust and mist removing module 4, a triangular housing 410 is communicated with the bottom of the circular truncated cone-shaped housings 44, the bottoms of the circular truncated cone-shaped housings 44 are equal to the area of the top of the triangular, the discharge gate has all been seted up to the bottom of a plurality of triangle-shaped casing 410, the bottom of a plurality of triangle-shaped casing 410 is located discharge gate department and all communicates and has collection box 45, the top of a plurality of round platform shape casing 44 all communicates and has air duct 46, the bottom of a plurality of air duct 46 all extends to the bottom of round platform shape casing 44, the inside of ultralow dust removal defogging module 4 and the top that is located closing plate 49 are provided with second gas exchange chamber 47, elastic tube and the intercommunication of second gas exchange chamber 47 are all passed through at the top of a plurality of air duct 46, be provided with the opening of a plurality of and elastic tube looks adaptation on the ultralow dust removal defogging module 4, the inside top of second gas exchange chamber 47 is provided with air-blower 48, a plurality of gas vent has been seted up at the top of second gas.

Through setting up air-blower 48, air-blower 48 can take out the inside of round platform shape casing 44 with the flue gas after the processing of spraying, thereby form the air current of vortex form in the inside of round platform shape casing 44, particulate matter in the flue gas obtains great centrifugal force along with in the air current of quick rotation, the inner wall of casing is separated after colliding under the effect of this centrifugal force, thereby drop in collection box 45, the flue gas of further purification can be taken out from air duct 46 again, the mode of this kind of defogging dust removal belongs to the whirlwind and handles the formula, and has simple structure, the elasticity of operation is big, high efficiency, management and maintenance convenience, low price's advantage.

Example 3

Referring to fig. 4, the present embodiment is optimized based on the embodiment 1 or 2, specifically, the sectional areas of the inner pipes of the plurality of gas accelerating tubes 43 are gradually reduced along the gas flowing direction, and the communicating parts of the plurality of gas accelerating tubes 43 and the circular truncated cone-shaped shell 44 are provided with the flow guide tubes 411 for guiding the gas to enter the circular truncated cone-shaped shell 44 along the tangential direction.

Through setting up gaseous accelerating tube 43 and honeycomb duct for gaseous when entering into round platform shape casing 44 inside, be along the inside tangential direction of round platform shape casing 44, and gaseous relative velocity is great, makes the particulate matter in the flue gas obtain great centrifugal force in the air current of quick rotation, is separated out after colliding with the inner wall of casing more easily under the effect of this centrifugal force.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (7)

1. The utility model provides a middle-size and small-size boiler desulfurization dust removal ultralow emission integrative tower, includes thick liquid oxidation circulation pond module (1), flue gas inlet module (2), sprays module (3), ultralow dust removal defogging module (4), chimney module (5), its characterized in that: slurry oxidation circulation pond module (1), flue gas entry module (2), spray module (3), super low dust removal defogging module (4), chimney module (5) are in proper order from up arranging the distribution down, be provided with the flue gas import on flue gas entry module (2), the top of chimney module (5) is provided with the exhanst gas outlet.

2. The desulfurization and dust removal ultra-low emission integrated tower for small and medium sized boilers as recited in claim 1, characterized in that: an oxidizing air interface, a pulse suspension pump interface and a circulating slurry pump interface are arranged in the slurry oxidation circulation tank module (1), and a circulating slurry pump is arranged outside the slurry oxidation circulation tank module (1).

3. The desulfurization and dust removal ultra-low emission integrated tower for small and medium sized boilers as recited in claim 1, characterized in that: an accident spraying system is arranged inside the smoke inlet module (2).

4. The desulfurization and dust removal ultra-low emission integrated tower for small and medium sized boilers as claimed in claim 2, which is characterized in that: the inside of spraying module (3) is provided with four layers of filter screen (31), four layers the bottom of filter screen (31) all is provided with the high-efficient nozzle of the one-way dual spray of a plurality of (32), the outside of spraying module (3) sets up desulfurization thick liquid holding vessel (33), the output of circulation thick liquid pump and the end intercommunication of intaking of desulfurization thick liquid holding vessel (33), the intercommunication has the transfer line between the end of intaking of the play water end of desulfurization thick liquid holding vessel (33) and one-way dual spray high-efficient nozzle (32), be provided with the suction pump of taking out the inside desulfurization thick liquid of desulfurization thick liquid holding vessel (33) on the transfer line.

5. The desulfurization and dust removal ultra-low emission integrated tower for small and medium sized boilers as recited in claim 1, characterized in that: a first gas exchange chamber (41) is arranged in the ultralow dust and mist removing module (4), a sealing plate (49) capable of blocking smoke gas from traveling upwards is arranged at the top of the first gas exchange chamber (41), a plurality of gas inlet pipes (42) are communicated with the bottom of the first gas exchange chamber (41), a plurality of gas accelerating pipes (43) are communicated with the periphery of the first gas exchange chamber (41), a plurality of truncated cone-shaped shells (44) matched with the gas accelerating pipes (43) are arranged outside the ultralow dust and mist removing module (4), the area of the top of each truncated cone-shaped shell (44) is smaller than that of the bottom of the corresponding truncated cone-shaped shell, a plurality of through holes matched with the gas accelerating pipes (43) are arranged on the periphery of the ultralow dust and mist removing module (4), and triangular shells (410) are communicated with the bottoms of the plurality of truncated cone-shaped shells (44), the bottom of each of the plurality of truncated cone-shaped shells (44) is equal to the top of the triangular shell (410), the bottom of each of the plurality of triangular shells (410) is provided with a discharge hole, the bottom of each of the plurality of triangular shells (410) is communicated with a recovery box (45) at the discharge hole, the top of each of the plurality of truncated cone-shaped shells (44) is communicated with a gas guide pipe (46), the bottom of each of the plurality of gas guide pipes (46) extends to the bottom of the truncated cone-shaped shell (44), a second gas exchange chamber (47) is arranged in the ultralow dust and mist removal module (4) and above a sealing plate (49), the top of each of the plurality of gas guide pipes (46) is communicated with the second gas exchange chamber (47) through an elastic pipe, the ultralow dust and mist removal module (4) is provided with a plurality of through holes matched with the elastic pipes, and the top of the second gas exchange chamber (47) is provided with a blower (48), the top of the second gas exchange chamber (47) is provided with a plurality of exhaust ports.

6. The desulfurization and dust removal ultra-low emission integrated tower for small and medium sized boilers as recited in claim 5, characterized in that: the sectional area of the inner pipeline of the plurality of gas accelerating tubes (43) is gradually reduced along with the gas flowing direction, and the communicating parts of the plurality of gas accelerating tubes (43) and the truncated cone-shaped shell (44) are provided with guide pipes (411) for guiding gas to enter the truncated cone-shaped shell (44) along the tangential direction.

7. The desulfurization and dust removal ultra-low emission integrated tower for small and medium sized boilers as recited in claim 1, characterized in that: and a sulfur dioxide detector (6) is arranged at the flue gas outlet on the chimney module (5).

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