Chemical gas purification safe dust removal equipment

Abstract

The utility model relates to the field of chemical gas purification and safety dust removal equipment, in particular to chemical gas purification and safety dust removal equipment. Comprising a spraying type washing dust removal tank composed of a centrifugal fan and a water mist spray head net, and a filtering mechanism which has a cleaning function and can effectively prevent some dust from being directly discharged into the atmosphere through an exhaust port due to the fact that the air draft performance of the centrifugal fan is too high in the dust removal process. Compared with the prior art, the device disclosed by the utility model has the advantages that a plurality of layers of filter screens capable of effectively blocking dust-containing water mist are arranged above a water mist purification and separation part, so that dust can be effectively prevented from being exhausted and discharged into the atmosphere under the action of a powerful air suction assembly; and a mechanism capable of being cleaned regularly is arranged above the filter screen, so that the condition that the filter screen is blocked due to long-term blocking of water and dust after long-term use can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of chemical gas purification and safe dust removal equipment, in particular to chemical gas purification and safe dust removal equipment. Background Art

[0002] In chemical production, certain production processes will produce gases containing solid particulate dust. These gases need to be purified before they can be discharged into the atmosphere, otherwise they will have a harmful impact on the environment.

[0003] At present, there are many device structures for gas dust removal, among which spray-type washing dust removal is a dust removal method often used in industrial production. The spray-type washing dust removal method is to make the gas to be treated flow from bottom to top in a sealed container, and use water mist to cover it during the flow. After the water mist adsorbs the solid particles in the gas, it forms a different mass with the gas substance. With the mutual cooperation of gravity and the upward suction device, the dust is separated from the gas, achieving the effect of gas purification and dust removal.

[0004] In the above method, since a powerful suction device is provided on the top, under the action of strong suction, there is a possibility that a small amount of dust combined with water mist will be affected by the suction device and be pumped and discharged to the outside together with the dust removal gas, which will lead to a low dust removal and purification effect and incomplete dust removal. In addition, if the dust contained in the gas to be purified in chemical production is a hazardous substance that is easily polluted and toxic, when the hazardous dust is discharged into the atmosphere with the water mist, as the water vapor evaporates, the dust particles will still float in the atmospheric environment, causing harm. Therefore, a chemical gas purification and safe dust removal equipment is needed. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The technical problem to be solved by the utility model is that when using a traditional spray-type washing and dust removal device to purify and remove dust from chemical gases, a part of the water mist containing impurities may be extracted by a high-efficiency exhaust device together with the dust-free gas and discharged into the atmosphere, resulting in a reduction in the dust removal and purification effect and causing atmospheric environmental pollution.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is: a chemical gas purification and safe dust removal equipment, including a purification tank, a gas supply pipe is connected to one side of the bottom of the purification tank, a plurality of atomizing nozzles are connected to the top of the purification tank, a water tank matched with the atomizing nozzles is connected to the outside of the purification tank, an exhaust pipe is connected above the purification tank, and a waste discharge pipe is connected to the bottom of the purification tank.

[0009] A centralizing tank is connected above the purification tank, one side of the centralizing tank is connected to an exhaust pipe, a connecting pipe is connected between the centralizing tank and the purification tank, and a plurality of filters are connected in the connecting pipe.

[0010] The top of the concentration tank is connected downwardly with a high-pressure nozzle that cooperates with the filter screen, and one side of the purification tank is externally connected with a water supply pipe. The water supply pipe is connected to a No. 1 water pipe connected to the water tank and a No. 2 water pipe that cooperates with the high-pressure nozzle at one end close to the purification tank.

[0011] Furthermore, an air pump is connected to the gas pipeline for transporting the waste gas produced by relevant chemical production equipment to the gas purification device through the gas pipeline for dust removal. A centrifugal fan is connected to the end of the exhaust pipe away from the concentration tank to provide a strong suction effect in the device. Under the action of strong suction, the air part in the chemical gas is extracted and discharged through the exhaust pipe. The centrifugal fan is upwardly connected to an exhaust port that matches the exhaust pipe, and exists as the terminal port of the exhaust pipe.

[0012] Furthermore, a slope connection part is commonly connected between the air supply pipe and the purification tank, and between the exhaust pipe and the concentration tank. This design is to prevent the water sprayed from a high place in the corresponding tank from entering the pipe on the corresponding side. The slope design can make the water that is about to enter the pipe flow back into the tank body by gravity. A funnel connection part matching with the waste pipe is connected to the bottom of the purification tank, which is used to concentrate the dust in contact with water and flow into the waste pipe by gravity.

[0013] Furthermore, the No. 1 water pipe is connected to a No. 1 water pump to provide power for water to flow from the water supply pipe through the No. 1 water pipe into the water tank; the No. 2 water pipe is connected to a No. 2 water pump to provide power for water to flow from the water supply pipe through the No. 2 water pipe into the high-pressure nozzle; the water supply pipe is connected to a reducer on the side close to the purification tank for connecting water supply pipe sections of different diameters.

[0014] Furthermore, a bracket is commonly connected between the top of the purification tank and the water tank, and is used to fix the water tank on the outside of the purification tank.

[0015] 3. Beneficial Effects

[0016] The advantages of the utility model compared with the prior art are that: the device is provided with a multi-layer filter screen above the water mist purification and separation part, which can effectively block the dust-containing water mist, effectively preventing the dust from being sucked out and discharged into the atmosphere due to the action of the strong suction component, and a mechanism that can be cleaned regularly is provided above the filter screen, which can prevent the filter screen from being blocked due to long-term blocking of water-containing dust after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the appearance structure of a chemical gas purification and safety dust removal equipment.

[0018] Figure 2 This is a schematic diagram of the internal structure of a chemical gas purification and safety dust removal equipment of the utility model. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the internal structure of a chemical gas purification and safety dust removal equipment of the utility model. Figure 2 .

[0020] Figure 4 It is a schematic diagram of the structure of part A.

[0021] As shown in the figure: 1. Purification tank, 2. Air pipe, 3. Air pump, 4. Slope connection, 5. Waste pipe, 6. Funnel connection, 7. Atomizing nozzle, 8. Water tank, 9. No. 1 water pipe, 10. No. 1 water pump, 11. Connecting pipe, 12. Filter, 13. Centralizing tank, 14. High-pressure nozzle, 15. No. 2 water pipe, 16. No. 2 water pump, 17. Water supply pipe, 18. Reducer, 19. Exhaust pipe, 20. Centrifugal fan, 21. Exhaust port, 22. Bracket. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] Combined with Figure 1-4 In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a chemical gas purification safety dust removal equipment, including a purification tank 1, a gas pipeline 2 is connected to one side of the bottom of the purification tank 1, and an air pump 3 is connected to the gas pipeline 2, which is used to transport the waste gas produced by the relevant chemical production equipment to the gas purification device through the gas pipeline 2 for dust removal treatment, a plurality of atomizing nozzles 7 are connected to the top of the purification tank 1, and a water tank 8 matched with the atomizing nozzle 7 is connected to the outside of the purification tank 1, and a total of 100 m2 of dust is generated between the top of the purification tank 1 and the water tank 8. A bracket 22 is connected to the same and is used to fix the water tank 8 on the outside of the purification tank 1. An exhaust pipe 19 is connected to the top of the purification tank 1. The exhaust pipe 19 is connected to a centrifugal fan 20 at one end away from the concentration tank 13 to provide a strong suction effect in the device. Under the strong suction effect, the air part in the chemical gas is extracted and discharged through the exhaust pipe 19. The centrifugal fan 20 is upwardly connected to an exhaust port 21 that matches the exhaust pipe 19, which exists as the terminal port of the exhaust pipe 19. The bottom end of the purification tank 1 is connected to a waste pipe 5.

[0025] Under the action of the No. 1 air pump 3, the chemical gas to be treated is transported to the purification tank 1 which serves as a purification and dust removal site. Through the strong suction of the upper centrifugal fan 20 and the mutual cooperation of the atomizing dust removal mechanism composed of multiple atomizing nozzles 7 in the purification tank 1, the dust in the gas is captured by the water mist and falls with the action of gravity. After dust removal, the gas continues to move upward with the suction force of the centrifugal fan 20, up and down, separating the dust from the gas, thereby achieving the effect of gas purification.

[0026] Embodiment 2

[0027] Combined with Figure 2-3 A centralizing tank 13 is connected above the purification tank 1, one side of the centralizing tank 13 is connected to an exhaust pipe 19, a connecting pipe 11 is connected between the centralizing tank 13 and the purification tank 1, and a plurality of filters 12 are connected in the connecting pipe 11.

[0028] Through the layers of filter screens 12 in the connecting pipe 11, a small amount of water mist containing dust passing through the connecting pipe 11 is intercepted, thereby preventing a small part of the dust from being discharged from the device together with the purified gas due to the strong suction force of the centrifugal fan 20. After the water vapor evaporates in the outside world, there will still be floating dust particles in the environment, thereby reducing the dust removal and purification effect.

[0029] Embodiment 3

[0030] Combined with Figure 1-3 The top of the concentration tank 13 is downwardly connected to a high-pressure nozzle 14 that matches the filter 12. A water supply pipe 17 is externally connected to one side of the purification tank 1. A reducer 18 is connected to the water supply pipe 17 near the purification tank 1 to connect parts of the water supply pipe 17 with different diameters. The water supply pipe 17 is connected to one end of the purification tank 1 with a No. 1 water pipe 9 that is connected to the water tank 8 and a No. 2 water pipe 15 that matches the high-pressure nozzle 14. A No. 1 water pump 10 is connected to the No. 1 water pipe 9 to provide power for the water to flow from the water supply pipe 17 through the No. 1 water pipe 9 into the water tank 8. The No. 2 water pipe 15 is connected to the water supply pipe 17 and the water supply pipe 17 is connected to the water tank 8. A No. 2 water pump 16 is connected to the water pipe 15 to provide power for the water to flow from the water supply pipe 17 through the No. 2 water pipe 15 into the high-pressure nozzle 14. A slope connection part 4 is commonly connected between the air pipe 2 and the purification tank 1 and between the exhaust pipe 19 and the concentration tank 13. This design is to prevent the water sprayed from a high altitude in the corresponding tank from entering the pipe on the corresponding side. The slope design can make the water that is about to enter the pipe flow back into the tank body by gravity. A funnel connection part 6 that cooperates with the waste pipe 5 is connected to the bottom of the purification tank 1, which is used to concentrate the dust that encounters water and flow into the waste pipe 5 by gravity.

[0031] The filter 12 is cleaned periodically by spraying water downwards through a high-pressure nozzle 14 located at the top of the concentration tank 13 just above the connecting pipe 11, thereby removing mud blocks on the lower side of the filter 12 that have long blocked the dust-containing water mist and may cause blockage, thereby ensuring that the filter 12 can be used effectively for a long time.

[0032] During the specific implementation of the utility model, when the device is used for chemical gas purification and dust removal, the steam pipe on one side of the bottom of the purification tank 1 is connected with the exhaust port of the relevant equipment. Through the action of the air pump 3, the gas that needs to be purified discharged from the chemical production enters the purification tank 1 through the gas pipe 2. With the strong suction action of the centrifugal fan 20 on the top of the device, the gas entering the purification tank 1 is in an ascending state. During the rising process of the gas in the purification tank 1, the atomizing spray group on the top of the purification tank 1 will spray a large amount of water mist toward the rising gas. The water mist diffused in the purification tank 1 will absorb the solid dust particles in the gas. Since the air quality is relatively light, the solid dust becomes heavier after combining with water. Under the action of the gravity of the substance itself and the strong suction of the centrifugal fan 20 that has been running all the time, the dust-free gas and the dust-containing water mist are separated up and down in the purification tank 1. Most of the dust-containing water mist will fall on the inner wall of the purification tank 1. As the water flow increases and combined with the influence of its own gravity, it will slowly flow downward. Finally, it is collected at the bottom of the purification tank 1 and flows out of the device through the path provided by the exhaust pipe 5. The dust-removed gas still rises and enters the concentration tank 13 through the connecting pipe 11, and continues to be discharged from the device from the exhaust port through the exhaust pipe 19 and enters the atmosphere. When the solid and gas are separated in the purification tank 1, due to the excessive suction effect of the centrifugal fan 20, a small amount of water mist containing dust will also be sucked to the exhaust port 21 along with the gas. When these wet dusts pass through the connecting pipe 11, they will be blocked by the multi-layer filter screen 12, and thus can no longer be discharged into the air through the exhaust port 21 along with the dust-free gas. After the filter screen 12 has blocked the wet dust for a long time, mud blocks may form on the lower surface of the filter screen 12 to block the filter screen 12, so that the filter screen 12 cannot play an effective role, and thus the purification effect of the device is reduced. Therefore, the upper high-pressure nozzle 14 can be periodically opened to clean the dust and mud blocks adhering to the filter screen 12 by spraying high-pressure water flow, and the cleaned sewage will also be discharged from the device through the exhaust pipe 5 below.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A chemical gas purification and safe dust removal device, comprising a purification tank (1), a gas delivery pipe (2) is connected to one side of the bottom of the purification tank (1), a plurality of atomizing nozzles (7) are connected to the top of the purification tank (1), a water tank (8) matched with the atomizing nozzles (7) is connected to the outside of the purification tank (1), an exhaust pipe (19) is connected to the top of the purification tank (1), and a waste pipe (5) is connected to the bottom of the purification tank (1), characterized in that: A centralizing tank (13) is connected above the purification tank (1), one side of the centralizing tank (13) is connected to an exhaust pipe (19), a connecting pipe (11) is connected between the centralizing tank (13) and the purification tank (1), and a plurality of filter screens (12) are connected inside the connecting pipe (11); The top of the concentration tank (13) is connected downwardly to a high-pressure nozzle (14) that cooperates with the filter (12), and one side of the purification tank (1) is externally connected to a water supply pipe (17). The end of the water supply pipe (17) close to the purification tank (1) is respectively connected to a first water supply pipe (9) connected to the water tank (8) and a second water supply pipe (15) that cooperates with the high-pressure nozzle (14).

2. According to claim 1, a chemical gas purification and safety dust removal equipment is characterized by: An air pump (3) is connected to the air delivery pipe (2), and a centrifugal fan (20) is connected to one end of the exhaust pipe (19) away from the concentration tank (13). The centrifugal fan (20) is upwardly connected to an exhaust port (21) that matches the exhaust pipe (19).

3. According to claim 1, a chemical gas purification and safety dust removal equipment is characterized by: A slope connection portion (4) is commonly connected between the gas delivery pipe (2) and the purification tank (1) and between the exhaust pipe (19) and the central tank (13), and a funnel connection portion (6) matching with the waste discharge pipe (5) is connected to the bottom of the purification tank (1).

4. The chemical gas purification and safety dust removal equipment according to claim 1 is characterized by: The first water delivery pipe (9) is connected to a first water pump (10), the second water delivery pipe (15) is connected to a second water pump (16), and the water supply pipe (17) is connected to a reducer (18) on the side close to the purification tank (1).

5. The chemical gas purification and safety dust removal equipment according to claim 1 is characterized by: A bracket (22) is provided between the top of the purification tank (1) and the water tank (8).

Images