Dust removal and purification equipment for industrial tail gas

Abstract

The utility model discloses dust removal and purification equipment for industrial tail gas, and relates to the field of waste gas treatment. The dust removal and purification equipment for the industrial tail gas comprises a conical filter cartridge, a dust removal device and a purification device, the rotating cylinder is rotationally connected to the interior of the conical filter cylinder, and the end, close to the gas inlet of the tail gas conveying pipeline, of the rotating cylinder penetrates through the conical filter cylinder; the scraping plates are fixedly connected to the end, extending out of the conical filter cylinder, of the rotating cylinder at equal intervals in a circumferential mode, and the scraping plates are attached to the surface of the conical filter cylinder in a sliding mode; compared with the prior art in which only a filter plate or other dust removal equipment is adopted to remove solid impurities such as dust in tail gas, the device can further ensure the effect of removing the solid impurities such as dust in the tail gas, and can perform self-cleaning treatment; and the equipment does not need to be frequently shut down and cleaned by workers, so that the treatment efficiency of the equipment on solid impurities such as dust is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and specifically relates to dust removal and purification equipment for industrial tail gas. Background Art

[0002] Industrial exhaust refers to the general term for various pollutant gases discharged into the air during the combustion of fuel and production processes in the factory area of ​​an enterprise. When the fuel in the factory is burned, a large amount of flue gas will be emitted. The flue gas not only contains a large amount of smoke, but also contains pollutants such as sulfide and nitrate. If it is directly discharged without treatment, it will seriously affect the ecological environment. These sulfur dioxide, nitrogen oxides and fine particulate matter are the main culprits for the formation of haze, which will greatly affect the health of residents and even threaten their lives, and have a great impact on the nearby air. Therefore, industrial exhaust gas needs to be treated before it can be discharged normally.

[0003] When existing industrial exhaust gas dust removal and purification equipment treats industrial exhaust gas, generally the dust and other solid impurities in the industrial exhaust gas are first filtered out, and then the harmful substances in the industrial exhaust gas are purified. By separate treatment, the industrial exhaust gas can be treated more fully. However, when removing dust from industrial exhaust gas, spraying or filtering mechanisms are mostly used in the prior art to filter it. When spraying is used for dust removal, when the concentration of solid impurities such as dust in the exhaust gas is high, there may be a problem that the dust and other solid impurities cannot fully contact with water. When filtering mechanisms such as filter plates or bag dust collectors are used for dust removal, as the dust and other solid impurities increase, the filtering mechanism may be blocked quickly, so frequent shutdowns for cleaning are required, affecting the treatment efficiency. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a dust removal and purification device for industrial tail gas which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: dust removal and purification equipment for industrial exhaust gas, including: a conical filter cartridge, installed in an exhaust gas conveying pipeline; a rotating cylinder, rotatably connected to the inside of the conical filter cartridge, and the end of the rotating cylinder close to the air inlet of the exhaust gas conveying pipeline passes through the conical filter cartridge; a scraper, fixedly connected to the end of the rotating cylinder extending from the conical filter cartridge at equidistant intervals, and the scraper slides against the surface of the conical filter cartridge; a plurality of groups of water spray heads are connected to the rotating cylinder at equidistant intervals; a driving assembly for driving the rotating cylinder to rotate is installed at one end of the rotating cylinder close to the scraper; the end of the rotating cylinder away from the driving assembly is connected to a water supply pipe through a rotating joint.

[0006] In order to facilitate the driving of the rotating cylinder by the exhaust gas, the driving assembly further comprises fan blades, one end of the rotating cylinder close to the scraper is fixedly connected to a transmission rod, and the fan blades are fixedly connected to the transmission rod at equidistant intervals around the circumference.

[0007] Furthermore, a water tank is fixedly connected to the lower end of the tail gas delivery pipeline, a water pump is connected to the water outlet of the water tank, and the water outlet of the water pump is connected to the water inlet of the water supply pipe.

[0008] In order to facilitate the recycling of water, a drain outlet is further provided on the exhaust gas delivery pipeline near the water tank, the water tank and the exhaust gas delivery pipeline are connected through the drain outlet, and a filter plate is inserted in the water tank between the drain outlet and the water pump.

[0009] In order to facilitate the pre-dust removal treatment of the exhaust gas, further, the rotating cylinder is connected with water pipes at equal intervals in a circle, the water pipes are located between the scraper and the fan blades, and the water outlet of the water pipe is connected with an atomizing nozzle, and the atomizing nozzle faces one side of the air inlet of the exhaust gas delivery pipeline.

[0010] In order to facilitate quick disassembly and assembly of the conical filter cartridge, the conical filter cartridge is further connected to the exhaust gas delivery pipeline via threads.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model uses a conical filter cartridge, a rotating cylinder, a water spray head, a scraper, a fan blade, a water supply pipe and other components in coordination. Compared with the prior art which only uses a filter plate or other dust removal equipment to remove solid impurities such as dust in the exhaust gas, the equipment can not only further ensure the effect of removing solid impurities such as dust in the exhaust gas, but also can perform self-cleaning treatment, without the need for staff to frequently shut down the equipment for cleaning, thereby greatly improving the equipment's efficiency in handling solid impurities such as dust.

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the attached picture:

[0014] Figure 1 This is a schematic diagram of the structure of the dust removal and purification equipment for industrial tail gas proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the conical filter cartridge, rotating cylinder, water storage tank, filter plate, water pump, scraper, fan blade, water pipe, water spray head and atomizing nozzle in the dust removal and purification equipment for industrial tail gas proposed by the utility model;

[0016] Figure 3The utility model discloses a schematic diagram of the structure of a conical filter cartridge, a water storage tank, a filter plate, a water pump, a scraper, a fan blade, a water pipe and an atomizing nozzle in the dust removal and purification equipment for industrial tail gas proposed by the utility model.

[0017] In the figure: 1. exhaust gas conveying pipeline; 101. water storage tank; 102. filter plate; 103. water pump; 104. water supply pipe; 2. conical filter cartridge; 3. rotating cylinder; 301. water spray head; 302. scraper; 303. water pipe; 304. atomizing nozzle; 4. fan blade. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0019] Embodiment 1:

[0020] Reference Figure 1-Figure 3 The dust removal and purification equipment for industrial exhaust gas includes: a conical filter cartridge 2, which is installed in an exhaust gas conveying pipeline 1; a rotating cylinder 3, which is rotatably connected to the inside of the conical filter cartridge 2, and the end of the rotating cylinder 3 close to the air inlet of the exhaust gas conveying pipeline 1 passes through the conical filter cartridge 2; a scraper 302 is fixedly connected to the end of the rotating cylinder 3 extending from the conical filter cartridge 2 at equidistant intervals, and the scraper 302 slides against the surface of the conical filter cartridge 2; a plurality of groups of water spray heads 301 are connected to the rotating cylinder 3 at equidistant intervals; a driving component for driving the rotating cylinder 3 to rotate is installed at one end of the rotating cylinder 3 close to the scraper 302; the end of the rotating cylinder 3 away from the driving component is connected to a water supply pipe 104 through a rotating joint.

[0021] The driving assembly includes fan blades 4. One end of the rotating cylinder 3 close to the scraper 302 is fixedly connected to a transmission rod. The fan blades 4 are fixedly connected to the transmission rod at equidistant intervals around the circumference.

[0022] A water tank 101 is fixedly connected to the lower end of the tail gas delivery pipeline 1 , and a water pump 103 is connected to the water outlet of the water tank 101 . The water outlet of the water pump 103 is connected to the water inlet of the water supply pipe 104 .

[0023] When purifying the exhaust gas generated in the industrial production process, generally, the dust and other solid impurities in the exhaust gas are first removed, and then the harmful substances in the exhaust gas are purified. Through separate treatment, the industrial exhaust gas can be purified more effectively. When treating the industrial exhaust gas, the air inlet end of the exhaust gas conveying pipeline 1 is first connected to the exhaust gas emission pipe, and then the air outlet end is connected to the purification equipment. After the previous work is prepared, the industrial exhaust gas can be transported. When the industrial exhaust gas is transported to the exhaust gas conveying pipeline 1, the dust and other solid impurities in the exhaust gas will be separated from the exhaust gas under the interception of the conical filter cartridge 2, and then the exhaust gas transported to the purification equipment through the exhaust gas conveying pipeline 1 will contain only a small amount of dust and other solid impurities, which effectively improves the treatment effect of the purification equipment on the exhaust gas. When the exhaust gas flows in the exhaust gas conveying pipeline 1, the fan blades 4 will drive the rotating cylinder 3 to rotate under the impact of the flowing exhaust gas, and the rotating cylinder 3 will rotate. The drum 3 will drive the scraper 302 to rotate, so that the scraper 302 can scrape off the dust and other solid impurities attached to the conical filter drum 2, so as to avoid the conical filter drum 2 being attached with a lot of dust and other solid impurities affecting the passage of the exhaust gas. At the same time, when the exhaust gas flows in the exhaust gas delivery pipeline 1, the water pump 103 can be started, and the water pump 103 will transport the water in the water tank 101 to the rotating drum 3 through the water supply pipe 104, and then the water in the rotating drum 3 will be sprayed by the water sprayer. The head 301 sprays toward the inner wall of the conical filter cartridge 2 and sprays out through the filter holes, which can not only backwash the filter holes of the conical filter cartridge 2, but also further improve the cleaning effect of solid impurities such as dust attached to the conical filter cartridge 2, thereby ensuring the patency of the conical filter cartridge 2. When the exhaust gas contacts water, the dust and other solid impurities in the exhaust gas can be further intercepted, thereby further improving the dust removal effect on the exhaust gas, and effectively ensuring the purification efficiency of the subsequent purification equipment on the exhaust gas.

[0024] Embodiment 2:

[0025] Reference Figure 1-Figure 3, the dust removal and purification equipment for industrial tail gas is basically the same as that of Example 1, and furthermore: a drain outlet is opened on the tail gas conveying pipeline 1 near the water tank 101, and the water tank 101 is connected to the tail gas conveying pipeline 1 through the drain outlet, and the water tank 101 is connected with a filter plate 102 between the drain outlet and the water pump 103. When the water in the water tank 101 backwashes the conical filter cartridge 2 through the water spray head 301, the falling water can carry solid impurities such as dust into the water tank 101 through the drain outlet, and is separated under the action of the filter plate 102, and then the solid impurities such as dust will be intercepted on the filter plate 102, and the filtered water will return to the water tank 101 again, which can not only recycle water and reduce the waste of water resources, but also collect solid impurities such as dust in a centralized manner, so that the staff can centrally clean the solid impurities such as dust, providing convenience for the staff.

[0026] The rotating cylinder 3 is circumferentially and equidistantly connected with water pipes 303, which are located between the scraper 302 and the fan blades 4. The water outlet of the water pipe 303 is connected with an atomizing nozzle 304, which faces one side of the air inlet of the exhaust gas conveying pipeline 1. Through the arrangement of the water pipe 303 and the atomizing nozzle 304, when the water in the water tank 101 is conveyed to the rotating cylinder 3 through the water supply pipe 104, part of the water can be supplied to the atomizing nozzle 304 through the water pipe 303, and then the atomizing nozzle 304 will spray water mist into the exhaust gas conveying pipeline 1. When the industrial exhaust gas is conveyed through the exhaust gas conveying pipeline 1, the dust and other solid impurities in the exhaust gas can be initially separated by dust reduction, which can not only reduce the pressure of the conical filter cartridge 2 when filtering out the dust and other solid impurities, but also further improve the dust removal effect of the exhaust gas, and effectively improve the subsequent purification effect of the exhaust gas.

[0027] The conical filter cartridge 2 is connected to the exhaust gas delivery pipe 1 through a threaded connection. By making the conical filter cartridge 2 and the exhaust gas delivery pipe 1 threadably connected, when the conical filter cartridge 2 is damaged and needs to be disassembled and replaced, the conical filter cartridge 2 can be quickly removed from the exhaust gas delivery pipe 1, providing convenience for the staff.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. Industrial tail gas dust removal and purification equipment, characterized in that: include: A conical filter cartridge (2) is installed in the exhaust gas delivery pipeline (1); A rotating cylinder (3) is rotatably connected to the inside of the conical filter cylinder (2), and one end of the rotating cylinder (3) close to the air inlet of the exhaust gas delivery pipeline (1) penetrates the conical filter cylinder (2); The scraper (302) is fixedly connected to one end of the rotating cylinder (3) extending out of the conical filter cartridge (2) at equidistant intervals around the circumference, and the scraper (302) is slidably attached to the surface of the conical filter cartridge (2); The rotating cylinder (3) is provided with a plurality of groups of water spray heads (301) connected at equal intervals in a circle; A driving assembly for driving the rotating cylinder (3) to rotate, mounted on one end of the rotating cylinder (3) close to the scraper (302); One end of the rotating cylinder (3) away from the driving assembly is connected to a water supply pipe (104) via a rotating joint.

2. The dust removal and purification equipment for industrial tail gas according to claim 1, characterized in that: The driving assembly comprises blades (4), one end of the rotating cylinder (3) close to the scraper (302) is fixedly connected to a transmission rod, and the blades (4) are fixedly connected to the transmission rod at equidistant intervals around the circumference.

3. The dust removal and purification equipment for industrial tail gas according to claim 1, characterized in that: The lower end of the tail gas delivery pipeline (1) is fixedly connected to a water tank (101), the water outlet of the water tank (101) is connected to a water pump (103), and the water outlet of the water pump (103) is connected to the water inlet of the water supply pipe (104).

4. The dust removal and purification equipment for industrial tail gas according to claim 3, characterized in that: A drain outlet is provided on the tail gas delivery pipeline (1) near the water tank (101); the water tank (101) and the tail gas delivery pipeline (1) are connected via the drain outlet; a filter plate (102) is inserted between the drain outlet and the water pump (103) of the water tank (101).

5. The dust removal and purification equipment for industrial tail gas according to claim 1, characterized in that: The rotating cylinder (3) is connected to water pipes (303) at equal intervals in a circumference, the water pipes (303) are located between the scraper (302) and the fan blades (4), and the water outlet of the water pipe (303) is connected to an atomizing nozzle (304), and the atomizing nozzle (304) faces one side of the air inlet of the exhaust gas delivery pipeline (1).

6. The dust removal and purification equipment for industrial tail gas according to claim 1, characterized in that: The conical filter cartridge (2) is connected to the tail gas delivery pipeline (1) via threads.

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