Efficient dust removal and purification equipment

Abstract

The utility model belongs to the technical field of waste gas purification, and particularly discloses efficient dust removal and purification equipment which comprises an input port, an absorption tower body and a discharge port, the input port is arranged at one end of a flue gas pipeline, and an atomizer, a fan and a mixer are sequentially arranged on the flue gas pipeline in the gas inlet direction. A plurality of bubblers are downwards and uniformly mounted on one section, which is arranged in the absorption tower body, of the flue gas pipeline; a hydraulic stirrer is arranged at the bottom end in the absorption tower body, a washing layer is arranged at the upper end in the absorption tower body, and an upward opening is formed in the top end of the absorption tower body and serves as a discharge outlet; a plurality of gas rising caps are arranged at the lower end of the water washing layer and are mounted and communicated on a water washing circulating pipe, the water washing circulating pipe extends out of the absorption tower body and is communicated with a water washing circulating pump, and the other end of the water washing circulating pump is also provided with a water washing circulating pipe which is connected into the absorption tower body; an input end for adding an absorbent is arranged at the side end of the absorption tower body.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a high-efficiency dust removal and purification device. Background Art

[0002] Waste gas purification mainly refers to the treatment of industrial waste gas such as dust particles, smoke, and odor gases generated in industrial places. Laboratory exhaust, metallurgy, chemical plants, pharmaceutical production plants, coating workshops, food and brewing, furniture production, catering, plastic products and other industries will produce a large amount of trace heavy metals and dust particles during the production process. These particles are mixed in the waste gas and discharged together with the waste gas. If they are discharged into the atmosphere without treatment, they will cause pollution to the environment.

[0003] The existing purification towers have complex internal equipment and require regular inspection and maintenance to ensure their normal operation. These maintenance costs include replacing consumables such as adsorbents and catalysts, as well as equipment troubleshooting and repairs. The investment is large, which increases production costs. The investment in the purification tower itself is also a large amount, which increases the economic burden on the company. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency dust removal and purification device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency dust removal and purification equipment, including an input port, an absorption tower body and a discharge port, wherein the input port is arranged at one end of a flue gas duct, and the other end of the flue gas duct penetrates into the middle of the absorption tower body, and the flue gas duct is sequentially arranged with an atomizer, a fan and a mixer along the air inlet direction, and a section of the flue gas duct arranged inside the absorption tower body is evenly arranged with a plurality of bubblers downward; a hydraulic agitator is arranged at the bottom end of the absorption tower body, and a water washing layer is arranged at the upper end of the absorption tower body. An upward opening is provided at the top of the absorption tower body as a discharge port; a plurality of air lift caps are provided at the lower end of the water washing layer, and the air lift caps divide the interior of the absorption tower body into a bubbling layer at the lower end and a water washing layer at the upper end; the air lift caps are installed and connected to a water washing circulation pipe, and the water washing circulation pipe extends out of the absorption tower body and is connected to a water washing circulation pump; a water washing circulation pipe is also provided at the other end of the water washing circulation pump and is connected to the interior of the absorption tower body; a branch pipe is provided at one end of the water washing circulation pipe connected to the air lift cap and is connected to a mixer; an input end for adding absorbent is provided at the side end of the absorption tower body.

[0006] Preferably, the atomizer is provided with a connecting pipe to input soft water, and the soft water is atomized in the atomizer, and an atomization branch pipe is provided in the middle section of the atomizer connecting pipe.

[0007] Preferably, the water washing layer includes a flat demister disposed in the middle, and a first flushing nozzle and a second flushing nozzle respectively disposed on the upper and lower sides of the flat demister. The first flushing nozzle is on the upper side and the second flushing nozzle is on the lower side.

[0008] Preferably, the first flushing nozzle is connected to the atomization branch pipe, and the second flushing nozzle is connected to a section of the water washing circulation pipe without a riser cap.

[0009] Preferably, an absorption stirring pump is disposed on one side of the absorption tower body, and the absorption stirring pump is respectively connected to a hydraulic stirrer and a mixer.

[0010] Preferably, a liquid outlet is disposed at the lower end of the absorption tower body, and a pipeline of the liquid outlet is connected to a by-product external delivery pump.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: Before the flue gas enters the absorption tower, a nebulizer is provided to spray water mist to humidify the waste gas, reducing power consumption. After entering the absorption tower, it is fully purified through the bubbling layer and the water washing layer, and finally clean waste gas is discharged from the discharge port. The absorption tower body is connected with a water washing circulation pump for recycling water, with low energy consumption, reducing the economic pressure on enterprises. A water washing layer is provided, and a part of the liquid pumped by the water washing circulation pump and the additional supplementary soft water are used to self-flush the inside of the absorption tower body, reducing the cleaning pressure and ensuring long-term stable operation. A hydraulic stirrer is provided in the bubbling layer at the lower end to prevent the solution from precipitating and also improve the mixing of the flue gas and the absorbent solution. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0013] In the figure: 1. Absorption tower body; 2. Hydraulic stirrer; 3. Bubbler; 4. Riser cap; 5. Water washing layer; 6. Discharge port; 7. Nebulizer; 8. Fan; 9. Mixer; 10. Water washing circulation pump; 11. Absorption stirring pump; 12. Absorbent; 13. By-product external delivery pump; 14. Input port; 15. Soft water; 16. Flue gas pipeline; 17. Atomization branch pipe; 18. Water washing circulation pipe. Detailed Embodiments

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0016] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] Please refer to Figure 1 , the present utility model provides a technical solution: an efficient dust removal and purification device, including an input port 14, an absorption tower body 1 and an emission port 6. The input port 14 is arranged at one end of a flue gas pipeline 16. The other end of the flue gas pipeline 16 penetrates into the middle of the absorption tower body 1. Along the gas inlet direction, an atomizer 7, a fan 8 and a mixer 9 are sequentially arranged and installed on the flue gas pipeline 16. A plurality of bubblers 3 are evenly installed downward on a section of the flue gas pipeline 16 arranged inside the absorption tower body 1; a hydraulic stirrer 2 is arranged at the bottom end inside the absorption tower body 1, a water washing layer 5 is arranged at the upper end inside the absorption tower body 1, and an upward opening is arranged at the top end of the absorption tower body 1 as the emission port 6; a plurality of gas lift caps 4 are arranged at the lower end of the water washing layer 5. The gas lift caps 4 divide the inside of the absorption tower body 1 into a bubbling layer at the lower end and a water washing layer 5 at the upper end. The gas lift caps 4 are installed and connected to a water washing circulation pipe 18. The water washing circulation pipe 18 extends out of the absorption tower body 1 and is connected to a water washing circulation pump 10. The other end of the water washing circulation pump 10 is also provided with a water washing circulation pipe 18 connected to the inside of the absorption tower body 1. One end of the water washing circulation pipe 18 connected to the gas lift cap 4 is provided with a branch pipe connected to the mixer 9.

[0018] Further, the atomizer 7 is provided with a connecting pipe for inputting soft water 15. The soft water 15 is atomized in the atomizer 7. An atomization branch pipe 17 is arranged in the middle section of the connecting pipe of the atomizer 7; an input end for adding an absorbent 12 is arranged at the side end of the absorption tower body 1.

[0019] Furthermore, the water washing layer 5 includes a flat demister 51 disposed in the middle, and a first flushing nozzle 52 and a second flushing nozzle 53 respectively disposed on the upper and lower sides of the flat demister 51. The first flushing nozzle 52 is on the upper side, and the second flushing nozzle 53 is on the lower side.

[0020] Furthermore, the first flushing nozzle 52 is connected to the atomization branch pipe 17, and the second flushing nozzle 53 is connected to a section of the water washing circulation pipe 18 where the gas lift cap 4 is not provided.

[0021] Furthermore, an absorption stirring pump 11 is disposed on one side of the absorption tower body 1, and the absorption stirring pump 11 is respectively connected to the hydraulic stirrer 2 and the mixer 9.

[0022] Furthermore, a liquid outlet is disposed at the lower end of the absorption tower body 1, and a pipeline of the liquid outlet is connected to the by-product external delivery pump 13.

[0023] Working principle: The utility model provides an efficient dust removal and purification device. Specifically, when in use, atomized soft water 15 is sprayed into the flue gas pipeline 16 before the waste gas enters the flue gas pipeline 16, and then the waste gas enters the absorption tower body 1 along the flue gas pipeline 16 from the input port 14. The atomized soft water 15 contacts the waste gas, reducing the temperature of the waste gas and facilitating the removal of the waste gas. The fan 8 on the flue gas pipeline 16 pressurizes the waste gas inside the pipeline to increase the rate of the waste gas entering the absorption tower body 1; after being pressurized, the flue gas enters the mixer 9, and the mixer 9 receives a part of the circulating washing water output by the riser cap 4. The circulating washing water absorbs the dust in the flue gas to preliminarily purify the waste gas. The roughly purified waste gas enters the inside of the absorption tower body 1. The lower end inside the absorption tower is the absorbent 12 solution, and a bubbler 3 is also arranged at the lower end inside the absorption tower body 1. The waste gas contacts the solution fully through the bubbler 3, and the harmful substances in the waste gas react fully with the absorbent 12 to be further purified. The purified waste gas rises and enters the water washing layer 5 through the riser cap 4. The purified waste gas is sprayed and washed again by the first washing nozzle 52 and the second washing nozzle 53 for highly purification. After the waste gas is purified, it becomes clean flue gas and is discharged from the exhaust port. The riser cap 4 blocks the liquid-phase substances of the spray washing from entering the lower bubbling layer; a liquid-phase stirrer is also arranged inside the absorption tower to prevent the solution from precipitating. When the solution mixed with the absorbent 12 reaches a certain concentration, it is output as a by-product and sent to the treatment device. In the utility model, a nebulizer 7 is arranged to spray water mist to humidify the waste gas before the flue gas enters the absorption tower, reducing power consumption. After entering the absorption tower, it is fully purified through the bubbling layer and the water washing layer 5, and finally the clean waste gas is discharged from the discharge port 6. The absorption tower body 1 is connected with a water washing circulation pump 10 for circulating water use, with low energy consumption and reducing the economic pressure on the enterprise. The water washing layer 5 is arranged, and a part of the liquid pumped by the water washing circulation pump 10 and the additional supplementary soft water 15 are used to self-wash the inside of the absorption tower body 1, reducing the cleaning pressure and ensuring long-term stable operation. A hydraulic stirrer 2 is arranged at the lower bubbling layer to avoid the solution from precipitating and also to improve the mixing of the flue gas and the absorbent 12 solution.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency dust removal and purification equipment, characterized in that: The invention comprises an input port (14), an absorption tower body (1) and a discharge port (6), wherein the input port (14) is arranged at one end of a flue gas pipe (16), and the other end of the flue gas pipe (16) penetrates into the middle of the absorption tower body (1); an atomizer (7), a fan (8) and a mixer (9) are sequentially arranged and installed in the flue gas pipe (16) along the gas inlet direction; a section of the flue gas pipe (16) arranged inside the absorption tower body (1) is uniformly installed with a plurality of bubblers (3) downward; a hydraulic agitator (2) is arranged at the bottom end of the absorption tower body (1), a water washing layer (5) is arranged at the upper end of the absorption tower body (1), and the absorption tower body (1) is provided with a plurality of bubblers (3) arranged in a uniform manner ... The top of the body (1) is provided with an upward opening as a discharge port (6); the lower end of the water washing layer (5) is provided with a plurality of air lifting caps (4), the air lifting caps (4) divide the interior of the absorption tower body (1) into a bubbling layer at the lower end and a water washing layer (5) at the upper end, the air lifting caps (4) are installed and connected to a water washing circulation pipe (18), the water washing circulation pipe (18) extends out of the outside of the absorption tower body (1) and is connected to a water washing circulation pump (10), the other end of the water washing circulation pump (10) is also provided with a water washing circulation pipe (18) connected to the inside of the absorption tower body (1), and one end of the water washing circulation pipe (18) connected to the air lifting cap (4) is provided with a branch pipe connected to a mixer (9).

2. The high-efficiency dust removal and purification equipment according to claim 1 is characterized in that: The atomizer (7) is provided with a connecting pipe for inputting soft water (15), and the soft water (15) is atomized in the atomizer (7). An atomization branch pipe (17) is provided in the middle section of the connecting pipe of the atomizer (7); and an input end for adding absorbent (12) is provided at the side end of the absorption tower body (1).

3. The high-efficiency dust removal and purification equipment according to claim 1 is characterized in that: The water washing layer (5) comprises a flat plate demister (51) arranged in the middle and a first flushing nozzle (52) and a second flushing nozzle (53) respectively arranged on the upper and lower sides of the flat plate demister (51), wherein the first flushing nozzle (52) is on the upper side and the second flushing nozzle (53) is on the lower side.

4. The high-efficiency dust removal and purification equipment according to claim 3 is characterized in that: The first flushing nozzle (52) is connected to the atomizing branch pipe (17), and the second flushing nozzle (53) is connected to a section of the water washing circulation pipe (18) which is not provided with an air lift cap (4).

5. The high-efficiency dust removal and purification equipment according to claim 1 is characterized in that: An absorption stirring pump (11) is provided on one side of the absorption tower body (1), and the absorption stirring pump (11) is respectively connected to the hydraulic stirrer (2) and the mixer (9).

6. The high-efficiency dust removal and purification equipment according to claim 1 is characterized in that: A liquid outlet is arranged at the lower end of the absorption tower body (1), and a pipeline is arranged at the liquid outlet to connect to a by-product delivery pump (13).

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