CN211676851U

CN211676851U - Water curtain type desulfurization dust removing device for flue gas of coal-fired boiler

Info

Publication number: CN211676851U
Application number: CN202020032155.4U
Authority: CN
Inventors: 包钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-16
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a coal fired boiler flue gas water curtain formula desulfurization dust collector, including dust removal section of thick bamboo and dust exhaust pipe, dust removal section of thick bamboo is the cylindrical shell structure that the top surface is the opening end, dust removal section of thick bamboo top outer wall is fixed with the cover, dust removal section of thick bamboo bottom outer wall is fixed with and extends to the inside chimney that advances of dust removal section of thick bamboo, it is located dust removal section of thick bamboo inner end outer wall and is fixed with collection mechanism to advance the chimney. The utility model discloses in, be fixed with the dust removal dish through the upper portion inner wall at a dust removal section of thick bamboo, loop through the connecting rod in the below of a dust removal dish and be fixed with a plurality of dust removal dishes No. one, and be fixed with the dust removal dish No. two through the connecting rod between two adjacent dust removal dishes, when the flue gas gets into the dust removal section of thick bamboo, open tap, make rivers flow into inside the dust removal dish from the inlet tube, after a dust removal dish carries full water, unnecessary water is along extending the notch and is gone into formation water curtain to the dust removal dish No. two, filter the flue gas that upwards stretches from No. two dust removal dish bottoms with this.

Description

Water curtain type desulfurization dust removing device for flue gas of coal-fired boiler

Technical Field

The utility model relates to a boiler flue gas treatment facility technical field, concretely relates to coal fired boiler flue gas water curtain formula desulfurization dust collector.

Background

The coal-fired boiler is a boiler using coal as fuel, and refers to a heat energy power device which heats heat medium water or other organic heat carriers to a certain temperature by burning the coal in a hearth to release heat, the coal-fired boiler can burn a large amount of coal, so that a large amount of smoke can be generated, pollutants and impurities in the coal are mixed in the smoke and discharged into the air, and therefore air pollution is caused and the air quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems of a large amount of pollutants and impurities mixed with flue gas generated in the combustion process of the existing coal-fired boiler, the flue gas water curtain type desulfurization and dust removal device for the coal-fired boiler is provided.

The purpose of the utility model can be realized by the following technical scheme:

a coal-fired boiler flue gas water curtain type desulfurization dust removal device comprises a dust removal cylinder and a dust exhaust pipe, wherein the dust removal cylinder is a cylindrical shell with an open top surface, a cylinder cover is fixed on the outer wall of the top end of the dust removal cylinder, a smoke inlet extending into the dust removal cylinder is fixed on the outer wall of the bottom end of the dust removal cylinder, a collection mechanism is fixed on the outer wall of the inner end of the dust removal cylinder, the collection mechanism comprises a collection cylinder, drainage plates and a smoke inlet, a smoke inlet is formed in the center of the bottom surface of the collection cylinder, the inner part of the smoke inlet is fixedly connected with the outer wall of the smoke inlet, four drainage plates are fixed on the inner bottom surface of the collection cylinder at equal intervals around the outer wall of the smoke inlet and around the axis of the smoke inlet, a drain pipe is fixed between every two adjacent drainage plates on the inner bottom surface of the collection cylinder, and the dust exhaust pipe extending out of the dust removal cylinder is;

the inner wall of the upper end of the dust removing cylinder, which is positioned on the smoke inlet cylinder, is fixedly provided with a dust removing mechanism, the dust removing mechanism comprises a first dust removing disc, a second dust removing disc and connecting rods, the number of the first dust removing disc and the second dust removing disc is four, the first dust removing disc and the second dust removing disc are distributed at equal intervals from the upper part of the dust removing cylinder to the lower part, the adjacent first dust removing disc and the adjacent second dust removing disc are connected through the connecting rods, a water inlet pipe extending into the dust removing cylinder is fixed at the position of the first dust removing disc at the top end of the dust removing cylinder, a three-way pipe is fixed at the end, which is positioned outside the dust removing cylinder, of the water inlet end of the three-way pipe is communicated with one end of a circulating pipe, a one-way valve is connected between the three-way pipe and the circulating pipe in series, the circulating pipe is connected with a circulating pump.

Further lie in, No. one dust removal dish is the ring annular structure, just the external diameter of a dust removal dish is greater than the external diameter of No. two dust removal dishes, just the internal diameter of a dust removal dish is less than the external diameter of No. two dust removal dishes, sets the external diameter that is greater than No. two dust removal dishes through the external diameter with a dust removal dish to, and the internal diameter is less than the structure of No. two dust removal dish external diameters, like this when the water in a dust removal dish is full after flowing in to No. two dust removal dishes through the notch, can make unnecessary water flow in the benefit of forming the water curtain in No. two dust removal dishes completely.

Further lie in, blow off pipe and dust exhaust pipe junction all are provided with the solenoid valve, through the structure that sets up the solenoid valve in the junction of blow off pipe and dust exhaust pipe, can make and control whether outside discharge impurity sewage of blow off pipe through the solenoid valve, guarantee that impurity when deposiing to a certain extent, reach the purpose of practicing thrift the water source through the discharge of dust exhaust pipe.

Further lie in, the inside diameter of advancing the chimney is less than the external diameter of No. two dust removal dishes, sets the structure that is less than the external diameter of No. two dust removal dishes through the internal diameter that will advance the chimney, can make into the chimney when the inside of dust removal barrel is discharged fume, the flue gas that advances in the chimney can all be through No. two dust removal dishes, then is passing through No. one dust removal dish to reach the benefit that the water curtain that forms when a dust removal dish is to No. two dust removal dish drainage can carry out the contact with the flue gas completely.

The water flow can flow into the second dust removal disc along the inner wall when the water in the first dust removal disc is accumulated to the height higher than the inner wall by setting the height of the outer wall of the first dust removal disc to be higher than the height of the inner wall.

The dust exhaust pipe is a combined structure formed by four equal-angle branch pipes and a main pipe, the dust exhaust pipe is arranged to be a structure which is communicated with the four branch pipes on the main pipe, the four branch pipes can be completely communicated with the sewage discharge pipe, and the corresponding sewage discharge pipe can be independently exhausted.

The utility model has the advantages that:

1. a first dust removing disc is fixed on the inner wall of the upper part of a dust removing cylinder, a plurality of first dust removing discs are fixed below the first dust removing disc in sequence through connecting rods, a second dust removing disc is fixed between two adjacent first dust removing discs through connecting rods, the diameter of a notch of the first dust removing disc is smaller than the outer diameter of the second dust removing disc, a smoke inlet cylinder extending into the smoke inlet cylinder is communicated with the outer wall of the bottom end of the dust removing cylinder, the inner diameter of the smoke inlet cylinder is smaller than the outer diameter of the second dust removing disc, a collecting cylinder is fixed on the outer wall of the smoke inlet cylinder, four drainage plates fixed around the smoke inlet cylinder are fixed on the inner bottom surface of the collecting cylinder, a discharge pipe is fixed between the two adjacent drainage plates on the inner bottom surface of the collecting cylinder, dust discharge pipes are fixed on the bottom surfaces of the four discharge pipes, and a structure of an electromagnetic valve is arranged at the joint of the discharge pipe and the dust discharge pipe, when smoke generated by combustion of a coal-fired boiler enters the dust removing cylinder, open tap for rivers flow into inside the dust removal dish from the inlet tube, after a dust removal dish carried water fully, unnecessary water flowed in to No. two dust removal dishes along following the notch to this filters the flue gas that upwards stretchs from No. two dust removal dish bottoms, makes impurity and pollutant in the flue gas collect inside the collection cylinder along rivers, opening the solenoid valve, makes impurity discharge from the dust exhaust pipe through rivers, pollution abatement.

Drawings

FIG. 1 is a schematic view of the overall structure of the reclaimed water curtain dust collector of the present invention;

FIG. 2 is a partial sectional view of the reclaimed water curtain dust removing apparatus of the present invention;

FIG. 3 is a sectional view of the reclaimed water curtain dust removing apparatus of the present invention;

FIG. 4 is a schematic structural view of the middle dust removing mechanism of the present invention;

FIG. 5 is a schematic view of the collecting mechanism of the present invention;

fig. 6 is a schematic view of the structure of the middle dust exhaust pipe of the present invention.

In the figure: 1. a cylinder cover; 2. a dust removal cylinder; 3. a chimney inlet; 4. a three-way pipe; 5. a circulation pump; 6. a circulation pipe; 7. a dust removal mechanism; 71. a first dust removal disc; 72. a second dust removal disc; 73. a connecting rod; 8. a collection mechanism; 81. a collection canister; 82. a drainage plate; 83. a blow-off pipe; 84. a smoke inlet; 9. a water inlet pipe; 10. a dust exhaust pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, a coal-fired boiler flue gas water curtain type desulfurization dust removal device comprises a dust removal cylinder 2 and a dust exhaust pipe 10, wherein the dust removal cylinder 2 is a cylindrical shell with an open top surface, a cylinder cover 1 is fixed on the outer wall of the top end of the dust removal cylinder 2, a flue inlet cylinder 3 extending into the dust removal cylinder 2 is fixed on the outer wall of the bottom end of the dust removal cylinder 2, a collecting mechanism 8 is fixed on the outer wall of the flue inlet cylinder 3 at the inner end of the dust removal cylinder 2, the collecting mechanism 8 comprises a collecting cylinder 81, the smoke inlet 84 is formed in the center of the bottom surface of the collecting cylinder 81, the inner part of the smoke inlet 84 is fixedly connected with the outer wall of the smoke inlet 3, four drainage plates 82 are fixed on the inner bottom surface of the collecting cylinder 81 around the outer wall of the smoke inlet 3 at equal intervals around the axis of the smoke inlet 3, a drain pipe 83 is fixed on the inner bottom surface of the collecting cylinder 81 between two adjacent drainage plates 82, and a dust exhaust pipe 10 extending to the outside of the dust removing cylinder 2 is fixed on the bottom surface of the drain pipe 83;

the inner wall of the dust removing cylinder 2, which is positioned at the upper end of the smoke inlet cylinder 3, is fixedly provided with a dust removing mechanism 7, the dust removing mechanism 7 comprises a first dust removing disc 71, a second dust removing disc 72 and a connecting rod 73, the number of the first dust removing disc 71 and the second dust removing disc 72 is four, the first dust removing disc 71 and the second dust removing disc 72 are distributed at equal intervals from the upper part to the lower part of the dust removing cylinder 2, and the adjacent first dust-removing disc 71 and the second dust-removing disc 72 are connected through a connecting rod 73, a water inlet pipe 9 extending to the interior of the dust-removing cylinder 2 is fixed at the position of the dust-removing cylinder 2 corresponding to the first dust-removing disc 71 at the top end, a three-way pipe 4 is fixed at the outer end of the dust-removing cylinder 2 of the water inlet pipe 9, one water inlet end of the three-way pipe 4 is communicated with one end of a circulating pipe 6, and a one-way valve is connected in series between the three-way pipe 4 and the circulating pipe 6, the circulating pipe 6 is connected in series with the circulating pump 5, and the other end of the circulating pipe 6 is communicated with a collecting cylinder 81 positioned in the dust removing cylinder 2.

No. one dust removal dish 71 is the ring annular structure, and the external diameter of a dust removal dish 71 is greater than the external diameter of No. two dust removal dishes 72, and the internal diameter of a dust removal dish 71 is less than the external diameter of No. two dust removal dishes 72, set the external diameter through with a dust removal dish 71 to be greater than the external diameter of No. two dust removal dishes 72, and the internal diameter is less than the structure of No. two dust removal dishes 72 external diameters, like this when the water in a dust removal dish 71 is full and flows in No. two dust removal dishes 72 through the notch, can make unnecessary water flow in the benefit of forming the water curtain in No. two dust removal dishes 72 completely.

The blow off pipe 83 all is provided with the solenoid valve with dust exhaust pipe 10 junction, through the structure that the junction at blow off pipe 83 and dust exhaust pipe 10 set up the solenoid valve, can make and control whether outside discharge impurity sewage of blow off pipe 83 through the solenoid valve, guarantee that impurity is when deposiing to a certain extent, discharge through dust exhaust pipe 10, reach the benefit of practicing thrift the water source, the inside diameter of advancing chimney 3 is less than the external diameter of No. two dust removal dish 72, through setting the internal diameter of advancing chimney 3 to the structure that is less than the external diameter of No. two dust removal dish 72, can make into chimney 3 when removing fume 2 inside, the flue gas that advances in chimney 3 can all be through No. two dust removal dish 72 then through No. one dust removal dish 71, thereby reach the benefit that the water curtain that forms when a dust removal dish 71 discharges water to No. two dust removal dish 72 can contact with the flue gas completely.

The bellied height of outer wall of a dust removal dish 71 is greater than the bellied height of inner wall, set the structure that is greater than the inner wall height through the outer wall height with a dust removal dish 71, can make the water accumulation in a dust removal dish 71 collect over when being higher than the height of inner wall, the rivers can flow in to No. two dust removal dishes 72 along the inner wall, the integrated configuration that dust exhaust pipe 10 communicates by the branch pipe of four angles such as with one person in charge, through set dust exhaust pipe 10 to the structure of four branch pipes of intercommunication on being responsible for, can make four branch pipes communicate with blow off pipe 83 completely, and can carry out dust exhaust alone to the blow off pipe 83 that corresponds.

The working principle is as follows: when in use, a worker fixes the whole water curtain type dust removal device, then connects one end of the three-way pipe 4 with a water pipe, fixedly connects a smoke exhaust pipe of the coal-fired boiler with the smoke inlet pipe 3, when smoke generated in the combustion process of the coal-fired boiler enters the dust removal cylinder 2 from the smoke inlet pipe 3, opens the water faucet, so that water flows into the first dust removal disc 71 through the water inlet pipe 9, when the first dust removal disc 71 is full of water, the water flows into the second dust removal disc 72 along the notch formed in the first dust removal disc 71, when the second dust removal disc 72 is full of water, the water continuously flows into the first dust removal disc 71 along the notch, the smoke entering the dust removal cylinder 2 from the smoke inlet pipe 3 is filtered, the filtered water is finally collected into the collection cylinder 81, then opens the circulating pump 5 for circulating filtration, and after the water is collected to a certain degree, the solenoid valve is opened to discharge the filtered impurities from the dust exhaust pipe 10 into a suitable container, and the solenoid valve is closed after the discharge is completed, so that the whole operation process is completed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. The utility model provides a coal fired boiler flue gas water curtain formula desulfurization dust collector, its characterized in that, including dust removal section of thick bamboo (2) and dust exhaust pipe (10), dust removal section of thick bamboo (2) are open cylinder casing for the top surface, dust removal section of thick bamboo (2) top outer wall is fixed with cover (1), dust removal section of thick bamboo (2) bottom outer wall is fixed with and extends to the inside chimney (3) that advances of dust removal section of thick bamboo (2), it is fixed with collection mechanism (8) to advance chimney (3) to be located dust removal section of thick bamboo (2) inside end outer wall, collection mechanism (8) are including collection section of thick bamboo (81), drainage plate (82) and inlet flue (84), inlet (84) have been seted up to collection section of thick bamboo (81) bottom surface central point department, inlet (84) inside and inlet (3) outer wall fixed connection, the collection section of thick bamboo (81) inner bottom surface is fixed with four drainage plates (82) about its axis equidistance around inlet (3) outer wall, a drain pipe (83) is fixed on the bottom surface of the collecting barrel (81) between two adjacent drainage plates (82), and a dust exhaust pipe (10) extending to the outside of the dust removing barrel (2) is fixed on the bottom surface of the drain pipe (83);

the inner wall of the upper end of the smoke inlet pipe (3) of the dust removing cylinder (2) is fixedly provided with a dust removing mechanism (7), the dust removing mechanism (7) comprises a first dust removing disc (71), a second dust removing disc (72) and a connecting rod (73), the number of the first dust removing disc (71) and the second dust removing disc (72) is four, the first dust removing disc (71) and the second dust removing disc (72) are distributed at equal intervals from the upper part to the lower part of the dust removing cylinder (2), the adjacent first dust removing disc (71) and the adjacent second dust removing disc (72) are connected through the connecting rod (73), a water inlet pipe (9) extending to the inside of the dust removing cylinder (2) is fixed at the position of the first dust removing disc (71) at the top end of the dust removing cylinder (2), the water inlet pipe (9) is fixed at the outer end of the dust removing cylinder (2), one water inlet end of the three-way pipe (4) is communicated with one end of the circulating pipe (6), and a one-way valve is connected in series between the three-way pipe (4) and the circulating pipe (6), the circulating pipe (6) is connected in series with a circulating pump (5), and the other end of the circulating pipe (6) is communicated with a collecting cylinder (81) positioned in the dust removing cylinder (2).

2. The coal-fired boiler flue gas water curtain type desulfurization dust removal device of claim 1, characterized in that the dust removal disc (71) is of a circular ring structure, and the outer diameter of the dust removal disc (71) is larger than the outer diameter of the dust removal disc (72), and the inner diameter of the dust removal disc (71) is smaller than the outer diameter of the dust removal disc (72).

3. The coal-fired boiler flue gas water curtain type desulfurization and dust removal device according to claim 1, characterized in that the joints of the drain pipes (83) and the dust exhaust pipes (10) are provided with electromagnetic valves.

4. The coal-fired boiler flue gas water curtain type desulfurization dust removal device of claim 1, characterized in that the inner diameter of the flue gas inlet pipe (3) is smaller than the outer diameter of the second dust removal disc (72).

5. The coal-fired boiler flue gas water curtain type desulfurization dust removal device of claim 1, characterized in that the height of the outer wall protrusion of the first dust removal disc (71) is greater than the height of the inner wall protrusion.

6. The coal-fired boiler flue gas water curtain type desulfurization dust removal device of claim 1, characterized in that the dust exhaust pipe (10) is a combined structure of four equiangular branch pipes communicated with one main pipe.