CN210186814U - Sulfur dioxide waste gas purification treatment device - Google Patents

Abstract

The utility model discloses a device for purifying sulfur dioxide waste gas, which comprises a first multi-pipe cyclone dust collector, a second multi-pipe cyclone dust collector, an air conveying pipeline and a spray drying tower; the first multi-pipe cyclone dust collector, the spray drying tower and the second multi-pipe cyclone dust collector are sequentially connected through a wind conveying pipeline; a plurality of cyclones are respectively arranged in the first multi-pipe cyclone dust collector and the second multi-pipe cyclone dust collector, cyclone sub-pipes are respectively arranged at the top ends of the cyclones, a cover plate is fixedly connected between every two adjacent cyclone sub-pipes, the top of the cover plate in the vertical direction is connected with an air conveying pipeline, and the other end of the air conveying pipeline is connected with a spray drying tower; the inside top of drying spray tower is installed the shower nozzle, and the shower nozzle entrance is equipped with alkaline ground paste conveyer pipe, and alkaline ground paste conveyer pipe one end fixedly connected with slurry pump. The utility model discloses low-cost, can the resourceization, operation management is simple moreover.

Description

Sulfur dioxide waste gas purification treatment device

Technical Field

The utility model relates to a chemical industry equipment field specifically is a purification unit of sulfur dioxide waste gas.

Background

Sulfur dioxide is one of the main common atmospheric pollutants, sulfur dioxide pollution is mainly caused by energy consumption, economic development is not supported by energy, the energy composition of China is mainly coal, and the mass combustion of coal with high sulfur content is an important factor causing the mass emission of sulfur dioxide and serious pollution. If the water is not removed, the water is directly discharged into the atmosphere to form acid rain, so that the environment is polluted; especially in countries where the energy structure is dominated by coal, the emission of sulphur dioxide is greater and it is therefore necessary to remove sulphides from the exhaust gases. The Chinese environmental situation bulletin shows that the air pollution of large and medium cities in China is serious from 1990, the air pollution of small towns is also increased, and the range and the degree of haze weather are enhanced in recent years. In the aspect of the purification treatment of sulfur dioxide gas, a great deal of research has been conducted at home and abroad.

At present, various methods and devices for dedusting and desulfurizing are available at home and abroad, and dry and wet methods are common, or other combustion methods are converted for dedusting and desulfurizing; in a flue gas dust removal and desulfurization system, most enterprises adopt the technologies of cloth bag type dust removal, electric dust removal, cyclone dust removal and the like, and the cloth bag type dust removal is the most widely applied one; the bag-type dust removal has a good effect on the purification of the flue gas, but the bag-type dust remover also has certain defects: firstly, the quality of the cloth bag filter material is not over-critical, and the service life of the cloth bag is short; secondly, the secondary pollution of the bag type dust collector is serious, and the physical health of operators is directly harmed; thirdly, the detection difficulty of the damaged cloth bag is high, production is stopped during replacement and maintenance, and normal production of enterprises is influenced; therefore, a desulfurization device which is low in cost, capable of recycling and simple in operation and management is urgently needed for treating air pollution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a purification unit of sulfur dioxide waste gas to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a purification treatment device for sulfur dioxide waste gas comprises a multi-pipe cyclone dust collector, an air conveying pipeline and a spray drying tower; the multi-pipe cyclone dust collector comprises a first multi-pipe cyclone dust collector and a second multi-pipe cyclone dust collector, and an air conveying pipeline is arranged among the first multi-pipe cyclone dust collector, the spray drying tower and the second multi-pipe cyclone dust collector and is sequentially connected through the air conveying pipeline;

the first multi-pipe cyclone dust collector and the second multi-pipe cyclone dust collector are internally provided with a plurality of cyclones, the top ends of the cyclones are respectively provided with a cyclone pipe, a cover plate is fixedly connected between every two adjacent cyclone pipes, the top end of the cover plate in the vertical direction is provided with an air outlet, the outside of the air outlet is connected with an air delivery pipeline, and the other end of the air delivery pipeline is connected with a spray drying tower;

a spray head is installed at the top end inside the drying and spraying tower, an alkaline slurry conveying pipe is arranged at the inlet of the spray head, and one end of the alkaline slurry conveying pipe is fixedly connected with a slurry pump; a plurality of draught fans are arranged between the bottom of the drying spray tower and the second multi-pipe cyclone dust collector and are fixedly connected through an air conveying pipeline.

Preferably, an air inlet and an air outlet are formed in the surface of the first multi-pipe cyclone dust collector, air conveying pipelines are connected to the outer portions of the air inlet and the air outlet, and an air feeder is arranged inside each air conveying pipeline.

Preferably, an air heater is arranged in an air conveying pipeline between the first multi-pipe cyclone dust collector and the spray drying tower, so that dust drying is accelerated.

Preferably, the outer surface of the drying and spraying tower is provided with a hot air distributor, so that the dust drying efficiency is improved, and the dust is dried more uniformly.

Preferably, the bottom of each of the first multi-pipe cyclone dust collector, the second multi-pipe cyclone dust collector and the drying spray tower is provided with an air lock, so that air leakage in the dust removal process is prevented, and the dust removal efficiency is prevented from being influenced.

Preferably, the bottom of the air lock is provided with a dust storage bin, so that dust after filtration can be cleaned in time, and the blockage of the multi-pipe cyclone dust collector and the influence on the production efficiency can be avoided.

Preferably, the bottom parts of the first multi-cyclone dust collector and the second multi-cyclone dust collector are respectively provided with a frame, so that the machine can be stabilized conveniently.

Preferably, the first multi-cyclone dust collector and the second multi-cyclone dust collector are both made of ceramic materials, so that the equipment is more wear-resistant and has longer service life due to the particularity of the ceramic materials.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has strong operability, the first multi-pipe cyclone dust collector and the second multi-pipe cyclone dust collector are both made of ceramic materials, and the equipment is more wear-resistant and has longer service life due to the particularity of the ceramic materials; the outer surface of the drying and spraying tower is provided with a plurality of hot air distributors, so that the dust drying efficiency is improved, and the dust is dried more uniformly; the bottom of the first multi-pipe cyclone dust collector, the second multi-pipe cyclone dust collector and the drying spray tower are provided with the air locking device, so that air leakage in the dust removal process is prevented, the dust removal efficiency is influenced, the multi-pipe cyclone dust collector is high in efficiency and large in treatment gas amount, the cyclone dust collector is simple in structure, easy to manufacture, install, maintain and manage, and the equipment investment and the operation cost are low.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a wind delivery pipeline; 2. a first multi-cyclone; 3. a slurry pump; 4. an alkaline slurry delivery pipe; 5. a spray head; 6. a spray drying tower; 7. a second multi-cyclone dust collector; 8. a frame; 9. a dust storage bin; 10. a blower; 11. an induced draft fan; 12. a hot air distributor; 13. an air heater; 14. an air lock; 15. a support platform; 16; a cover plate; 17. a cyclone; 18. a cyclone sub-tube.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the present invention provides a technical solution: a purification treatment device for sulfur dioxide waste gas comprises a multi-pipe cyclone dust collector, an air conveying pipeline 1 and a spray drying tower 6; the multi-cyclone dust collector comprises a first multi-cyclone dust collector 2 and a second multi-cyclone dust collector 7, and an air conveying pipeline 1 is arranged among the first multi-cyclone dust collector 2, the spray drying tower 6 and the second multi-cyclone dust collector 7 and is sequentially connected through the air conveying pipeline 1; a plurality of cyclones 17 are respectively arranged in the first multi-cyclone dust collector 2 and the second multi-cyclone dust collector 7, cyclone tubes 18 are respectively arranged at the top ends of the cyclones 17, a cover plate 16 is fixedly connected between the adjacent cyclone tubes 18, an air outlet is arranged at the top end of the cover plate 16 in the vertical direction, an air conveying pipeline 1 is connected to the outside of the air outlet, and the other end of the air conveying pipeline 1 is connected with a spray drying tower 6; a spray head 5 is arranged at the top end inside the drying and spraying tower 6, an alkaline slurry conveying pipe 4 is arranged at the inlet of the spray head 5, and one end of the alkaline slurry conveying pipe 4 is fixedly connected with a slurry pump 3; a plurality of draught fans 11 are arranged between the bottom of the drying and spraying tower 6 and the second multi-pipe cyclone dust collector 7 and are fixedly connected through a wind conveying pipeline 1.

Further, an air inlet and an air outlet are formed in the surface of the first multi-pipe cyclone dust collector 2, air conveying pipelines 1 are connected to the outer portions of the air inlet and the air outlet, and a blower 10 is arranged inside each air conveying pipeline.

Further, an air heater 13 is arranged in the air conveying pipeline 1 between the first multi-cyclone dust collector 2 and the spray drying tower 6.

Further, a hot air distributor 12 is installed on the outer surface of the drying and spraying tower 6.

Further, an airlock 14 is installed at the bottom of each of the first and second multicyclones 2 and 7.

Further, the bottom of each air lock 14 is provided with a dust storage bin 9.

Further, the bottom parts of the first multi-cyclone dust collector 2, the second multi-cyclone dust collector 7 and the drying and spraying tower 6 are provided with a frame 8.

Further, the first multi-cyclone 2 and the second multi-cyclone 7 are made of ceramic materials.

The working principle is as follows: sulfur dioxide waste gas passes through a wind conveying pipeline 1, a blower 10 is opened to convey the sulfur dioxide waste gas into a first multi-pipe cyclone dust collector 2, an air locker 14 is locked, the first multi-pipe cyclone dust collector 2 is opened, the airflow containing the sulfur dioxide waste gas is made to rotate through the axial movement of a cyclone 17, dust particles are separated from the airflow by means of centrifugal force and collected on the wall of the device, the air locker 14 is opened, and then the dust particles fall into a dust storage bin 9 at the bottom by means of gravity, wherein the stage is to perform primary dust removal and remove solid pollutants contained in the waste gas; the apron 16 is opened to the sulfur dioxide waste gas after the dust removal, waste gas in the gas transmission pipeline 1 is heated through air heater 13 in the gas transmission pipeline 1, input dry spray tower 6 after burning, open the hot air distributor 12 of 6 surface mounting in dry spray tower, carry the shower nozzle 5 on the inside top of dry spray tower 6 through alkaline slurry conveyer pipe 4 with slurry pump 3, spray and dry spray tower 6 inside alkaline slurry by shower nozzle 5, open draught fan 11 after alkaline slurry and sulfur dioxide waste gas intensive mixing and purification, gas introduction after will purifying to second multitube cyclone 7, then carry out the purification of last time and discharge into the atmosphere after reaching emission standard to waste gas.

It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the existing well-known technology, and the electrical connection relation and the specific circuit structure of the device are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a purification unit of sulfur dioxide waste gas which characterized in that: comprises a multi-pipe cyclone dust collector, an air conveying pipeline (1) and a spray drying tower (6); the multi-pipe cyclone dust collector comprises a first multi-pipe cyclone dust collector (2) and a second multi-pipe cyclone dust collector (7), and an air conveying pipeline (1) is arranged among the first multi-pipe cyclone dust collector (2), the spray drying tower (6) and the second multi-pipe cyclone dust collector (7) and is sequentially connected through the air conveying pipeline (1);

a plurality of cyclones (17) are respectively arranged in the first multi-cyclone dust collector (2) and the second multi-cyclone dust collector (7), cyclone tubes (18) are respectively arranged at the top ends of the cyclones (17), a cover plate (16) is fixedly connected between every two adjacent cyclone tubes (18), an air outlet is arranged at the top end of the cover plate (16) in the vertical direction, the output end of the air outlet is connected with an air conveying pipeline (1), and the other end of the air conveying pipeline (1) is connected with a spray drying tower (6);

a spray head (5) is installed at the top end inside the spray drying tower (6), an alkaline slurry conveying pipe (4) is arranged at an inlet of the spray head (5), and one end of the alkaline slurry conveying pipe (4) is fixedly connected with a slurry pump (3); a plurality of draught fans (11) are arranged between the bottom of the spray drying tower (6) and the second multi-pipe cyclone dust collector (7) and are fixedly connected through an air conveying pipeline (1).

2. The purification treatment device for sulfur dioxide waste gas according to claim 1, characterized in that: the surface of the first multi-pipe cyclone dust collector (2) is provided with an air inlet and an air outlet, the outer parts of the air inlet and the air outlet are fixedly connected with an air conveying pipeline (1), and a blower (10) is arranged inside the air conveying pipeline.

3. The purification treatment device for sulfur dioxide waste gas according to claim 1, characterized in that: an air heater (13) is arranged in the air conveying pipeline (1) between the first multi-pipe cyclone dust collector (2) and the spray drying tower (6).

4. The purification treatment device for sulfur dioxide waste gas according to claim 1, characterized in that: and a hot air distributor (12) is arranged on the outer surface of the spray drying tower (6).

5. The purification treatment device for sulfur dioxide waste gas according to claim 1, characterized in that: and the bottom parts of the multi-pipe cyclone dust collectors are provided with air locks (14).

6. The purification treatment device for sulfur dioxide waste gas according to claim 5, characterized in that: and dust storage bins (9) are arranged at the bottoms of the air locks (14).

7. The purification treatment device for sulfur dioxide waste gas according to claim 4, characterized in that: and the bottoms of the first multi-pipe cyclone dust collector (2), the second multi-pipe cyclone dust collector (7) and the spray drying tower (6) are respectively provided with a rack (8).

8. The purification treatment device for sulfur dioxide waste gas according to claim 4, characterized in that: the first multi-cyclone dust collector (2) and the second multi-cyclone dust collector (7) are both made of ceramic materials.

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