Waste gas purification device for desulfurization and denitrification in environmental protection engineering

Abstract

The utility model discloses a waste gas purification device for desulfurization and denitrification in environmental protection engineering, and relates to the technical field of environmental protection engineering. The waste gas treatment device comprises a waste gas treatment tower, a sealing top cover and a sealing partition plate, a high-pressure exhaust fan is arranged at the bottom of one side of the waste gas treatment tower, a plurality of exhaust pipes are clamped on one side of the waste gas treatment tower in a penetrating mode from top to bottom, and the sealing top cover is fixedly clamped on the top of the waste gas treatment tower; a plurality of sealing partition plates are clamped and fixed in the waste gas treatment tower from top to bottom, and a plurality of air pressure valves penetrate through and are clamped at the top of each sealing partition plate. The waste gas treatment tower, the sealing top cover and the sealing partition plate are arranged, so that the problems that newly entering waste gas can dilute waste gas treated for a certain time, flowing waste gas is difficult to be in full contact with purification liquid, and the cost and the occupied space of the device are increased due to the fact that the device is treated in a sealing mode are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection engineering, in particular to an exhaust gas purification device for desulfurization and denitration in environmental protection engineering. Background Art

[0002] Environmental protection projects refer to projects specifically designed for environmental protection. Due to industrial development leading to environmental pollution, environmental pollution is dealt with and resolved through a group of organized activities by a group of people, based on a set of envisioned goals, using relevant scientific knowledge and technical means. The content of environmental protection projects mainly includes air pollution prevention and control projects, water pollution prevention and control projects, solid waste treatment and utilization projects, and noise control projects. Among them, air pollution prevention and control projects are to take engineering and technical measures to prevent and control air pollution caused by human production and consumption activities in order to improve air quality. The waste gas generated in production often needs to meet air quality standards before it can be discharged into the environment. There are usually a large number of sulfides and nitrates in the waste gas, which need to be treated by waste gas purification equipment to react with the treatment liquid and the sulfides and nitrates in the waste gas to ensure that the treated waste gas meets the emission standards. However, it still has the following disadvantages in actual use:

[0003] The utility model with publication number CN219580229U discloses an exhaust gas purification device for desulfurization and denitrification of environmental protection engineering, wherein the first filtering mechanism comprises a filter box, a stirring box is fixedly installed on the top of the filter box, a transmission rod is fixedly installed on the output shaft of the stirring box, stirring blades are fixedly installed on the left and right sides of the transmission rod, and an air guide pipe is connected to the left side of the top of the filter box. When the exhaust gas passes through the box, the exhaust gas is often driven by an exhaust fan to quickly enter the device for treatment, which causes the exhaust gas to flow faster in the device, making it difficult to contact with the purified mixed liquid for a long time, which may lead to poor treatment effect;

[0004] Although the closed exhaust gas purification device can efficiently treat the exhaust gas, it will result in the device only being able to accommodate a certain amount of exhaust gas at a time. The total amount of exhaust gas is large and the treatment time is long. However, in the actual production and processing process, exhaust gas is often generated continuously. Storing the generated exhaust gas through a storage device or a pre-treatment device will increase the cost of the device and occupy air. If the exhaust gas is continuously drawn into the purification device, the treated exhaust gas will be mixed with the exhaust gas that has just entered the device. The treated exhaust gas will dilute the harmful substances that have just entered the exhaust gas, reducing the exhaust gas treatment efficiency, and it is difficult to quickly discharge the exhaust gas that has been treated for a certain period of time. Utility Model Content

[0005] The utility model aims to provide a waste gas purification device for desulfurization and denitrification in environmental protection projects. Through a waste gas treatment tower, a sealed top cover and a sealed baffle, the utility model solves the problem that when the waste gas purification device for desulfurization and denitrification is actually used, the waste gas flows at a fast speed and is difficult to fully contact with the purification liquid. Since the total amount of waste gas generated during production is large and is generated continuously, a quantitative waste gas is stored by a storage structure and then transported to the purification device for sealed treatment. Although the treatment efficiency is guaranteed, the cost and the space occupied by the device are increased. The waste gas is continuously pumped into the device, and the newly entered waste gas will dilute the waste gas treated for a certain period of time.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a waste gas purification device for desulfurization and denitrification of environmental protection projects, comprising a waste gas treatment tower, a sealed top cover and a sealed baffle, a high-pressure exhaust fan is arranged at the bottom of one side of the waste gas treatment tower, a plurality of exhaust pipes are penetrated and clamped from top to bottom on one side of the waste gas treatment tower, a sealed top cover is clamped and fixed on the top of the waste gas treatment tower, a liquid pump is arranged at the bottom of one side of the waste gas treatment tower, a plurality of sealed baffles are clamped and fixed from top to bottom in the waste gas treatment tower, a plurality of air pressure valves are penetrated and clamped on the top of each sealed baffle, and an air quality monitoring component is clamped and fixed on the bottom of each sealed baffle;

[0008] The waste gas generated by production can be continuously drawn into the waste gas treatment tower for treatment through a high-pressure exhaust fan to avoid environmental pollution caused by leakage of waste gas. The waste gas in a single relatively sealed space in the waste gas treatment tower can be discharged through multiple exhaust pipes, which is convenient for quickly discharging the waste gas when it is monitored that the waste gas meets the emission standards, so that the subsequent high-pressure waste gas can quickly enter the sealed space with lower air pressure. The treatment liquid can be pumped into the waste gas treatment tower through a liquid pump, so that the atomized treatment liquid and the waste gas can contact and react to treat the waste gas. The space in the waste gas treatment tower can be separated by a sealed partition to avoid mixing the waste gas that has just entered the waste gas treatment tower with the waste gas that has been treated for a certain period of time, so as to ensure that the waste gas that has been treated for a certain period of time can be quickly discharged. The exhaust gas enters the exhaust gas treatment tower and is discharged at the same time. The air pressure valve can make the exhaust gas entering the exhaust gas treatment tower reach a certain air pressure. Under the action of the air pressure, the corresponding air pressure valve is opened to allow part of the exhaust gas to enter another relatively sealed space, thereby avoiding safety hazards caused by excessive air pressure in a single relatively sealed space. Even if the amount of exhaust gas generated during industrial production is large, the exhaust gas can be treated in sections through the sealed partition to ensure that the exhaust gas is discharged after meeting the emission standards. There is no need to set up a storage structure to store the excess exhaust gas generated, thereby reducing the cost and floor space of the purification device. Multiple air quality monitoring components can be used to monitor the exhaust gas in multiple relatively sealed spaces in the exhaust gas treatment tower. When the exhaust gas reaches the emission standard, the exhaust gas can be quickly discharged to ensure the exhaust gas treatment efficiency.

[0009] Furthermore, a plurality of drain pipes are connected from top to bottom through one side of the outer peripheral surface of the exhaust gas treatment tower, and the plurality of drain pipes are respectively located at the top of the plurality of sealing partitions and the bottom of one side of the exhaust gas treatment tower, and the plurality of exhaust pipes are respectively located at the bottom of the plurality of sealing partitions and the top of one side of the exhaust gas treatment tower;

[0010] Through multiple drainage pipes, the treatment liquid accumulated after spraying in each relatively sealed space can be discharged, avoiding the treatment liquid occupying a large space, resulting in a reduction in the amount of waste gas that can be accommodated in the space, thereby ensuring the waste gas treatment efficiency. Through multiple exhaust pipes, the waste gas that has been treated in multiple relatively sealed spaces can be discharged, so that the subsequent high-pressure waste gas can quickly enter the sealed space with lower air pressure.

[0011] Furthermore, an exhaust pipe is inserted through one side of the high-pressure exhaust fan, an intake pipe is inserted through one end of the high-pressure exhaust fan, a one-way valve is inserted through the outer peripheral surface of the intake pipe, one end of the intake pipe is inserted through one side of the exhaust gas treatment tower, and the intake pipe is located at the bottom of multiple sealing partitions;

[0012] The waste gas generated by industrial production can be drawn into the waste gas treatment tower for treatment through a high-pressure exhaust fan. The one-way valve can prevent the backflow of waste gas when the high-pressure exhaust fan is shut down, thereby ensuring the waste gas treatment efficiency.

[0013] Furthermore, a liquid inlet pipe is inserted through one end of the liquid pump, a liquid through pipe is inserted through the top of the outer peripheral surface of the liquid pump, a plurality of nozzles are inserted through one end of the outer peripheral surface of the liquid through pipe, the nozzles are located inside the exhaust gas treatment tower, and the liquid through pipe is inserted through the top of the sealing cover;

[0014] The treatment liquid can be pumped into the liquid pipe through a liquid pump, and the treatment liquid can be sprayed into multiple relatively sealed spaces in the exhaust gas treatment tower through a nozzle, so that the treatment liquid and the exhaust gas can be fully contacted, the exhaust gas can be treated and reacted, and the sulfides in the exhaust gas can be prevented from polluting the environment.

[0015] Furthermore, the bottom of each sealing partition is penetrated and connected with a limit protection frame, the air quality monitoring component is located inside the limit protection frame, and the liquid pipe is penetrated and plugged into the top of multiple sealing partitions;

[0016] The space in the exhaust gas treatment tower can be divided by a sealed partition. After a certain amount of exhaust gas is drawn into the exhaust gas treatment tower through a high-pressure exhaust fan, the air pressure valve of a sealed partition can be squeezed to allow a certain amount of exhaust gas to enter another relatively sealed space for further treatment, thereby avoiding the mixing of exhaust gas that continuously enters the exhaust gas treatment tower and exhaust gas that has been treated for a certain period of time, which makes it difficult to quickly discharge exhaust gas that has been treated for a certain period of time. Even if the amount of exhaust gas generated during industrial production is large, the exhaust gas can be treated in sections by a sealed partition, and it can be ensured that the exhaust gas is discharged only after meeting the emission standards. There is no need to set up a storage structure to store the excess exhaust gas generated, thereby reducing the cost and floor space of the purification device. The limit protection frame can prevent the sprayed treatment liquid from being sprayed on the surface of the air quality monitoring component, thereby avoiding adverse effects on the monitoring results. Through the air quality monitoring component.

[0017] The utility model has the following beneficial effects:

[0018] The utility model solves the problem that when the exhaust gas passes through the box, the exhaust gas is often driven by an exhaust fan to quickly enter the device for treatment, which causes the exhaust gas to flow quickly in the device and is difficult to contact with the purified mixed liquid for a long time, which may lead to poor treatment effect by arranging the exhaust gas treatment tower and the sealing partition. The space in the exhaust gas treatment tower is divided by the sealing partition, so that the exhaust gas is treated separately in a plurality of relatively sealed spaces, and the exhaust gas treated in each sealed space can be quickly discharged through the exhaust pipe, and it is avoided that the exhaust gas is difficult to contact with the treatment liquid for a long time and over a large area due to the exhaust gas flowing in the device, thereby ensuring the treatment efficiency.

[0019] The utility model provides an exhaust gas treatment tower and a sealing partition, thereby solving the problem that although a closed exhaust gas purification device can efficiently treat exhaust gas, it will result in that the device can only accommodate a certain amount of exhaust gas at a time, the total amount of exhaust gas is large, and the treatment time is long. However, in the actual production and processing process, exhaust gas is often generated continuously. Storing the generated exhaust gas through a storage device or a pre-treatment device will increase the cost of the device and occupy air. If the exhaust gas is continuously drawn into the purification device, the treated exhaust gas will be mixed with the exhaust gas that has just entered the device. The treated exhaust gas will dilute the harmful substances that have just entered the exhaust gas, thereby reducing the exhaust gas treatment efficiency, and it is difficult to quickly treat the exhaust gas that has been treated for a certain period of time. Regarding the problem of exhaust gas discharge, after the exhaust gas is drawn into the exhaust gas treatment tower by the high-pressure exhaust fan, it is simultaneously treated by spraying the treatment liquid. When the exhaust gas pressure in the space where the exhaust gas is drawn reaches the threshold, part of the exhaust gas enters the adjacent sealed space through the air pressure valve to continue treatment, so that the exhaust gas entering another sealed space can be treated in a relatively static state, ensuring the treatment efficiency, and can be quickly discharged after treatment. Even if the amount of exhaust gas generated during industrial production is large, the exhaust gas can be treated in sections through the sealed partitions, which can ensure that the exhaust gas is discharged only after meeting the emission standards. There is no need to set up a storage structure to store the excess exhaust gas generated, thereby reducing the cost and floor space of the purification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural effect diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model;

[0022] Figure 3 This is a structural diagram of the waste gas treatment tower of the utility model;

[0023] Figure 4 It is a side view of the waste gas treatment tower of the utility model;

[0024] Figure 5 This is a structural diagram of the sealing top cover and the liquid pump of the utility model;

[0025] Figure 6 This is a structural diagram of the sealing partition of the utility model.

[0026] Reference numerals:

[0027] 1. Waste gas treatment tower; 101. High-pressure exhaust fan; 102. Exhaust pipe; 103. Drain pipe; 104. Inlet pipe; 105. One-way valve; 106. Exhaust pipe; 2. Sealed top cover; 201. Liquid pump; 202. Liquid pipe; 203. Nozzle; 204. Liquid inlet pipe; 3. Sealed partition; 301. Air pressure valve; 302. Air quality monitoring component; 303. Limit protection frame. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-6 As shown, the utility model is an exhaust gas purification device for desulfurization and denitrification of environmental protection projects, including an exhaust gas treatment tower 1, a sealed top cover 2 and a sealed baffle 3. A high-pressure exhaust fan 101 is arranged at the bottom of one side of the exhaust gas treatment tower 1, and a plurality of exhaust pipes 102 are inserted and connected from top to bottom on one side of the exhaust gas treatment tower 1. A sealed top cover 2 is fixedly connected to the top of the exhaust gas treatment tower 1, and a liquid pump 201 is arranged at the bottom of one side of the exhaust gas treatment tower 1. A plurality of sealed baffles 3 are fixedly connected and connected from top to bottom in the exhaust gas treatment tower 1, and a plurality of air pressure valves 301 are inserted and connected to the top of each sealed baffle 3, and an air quality monitoring component 302 is fixedly connected and connected to the bottom of each sealed baffle 3.

[0030] The waste gas generated by the production is continuously pumped into the bottom of the waste gas treatment tower 1 through the high-pressure exhaust fan 101, and the treatment liquid is pumped into the liquid inlet pipe 204 through the liquid pump 201 and then sprayed into the waste gas treatment tower 1, so that the waste gas and the treatment liquid are fully in contact. When the air pressure in the bottom space reaches the threshold, the air pressure valve 301 is partially squeezed in stages and enters the adjacent sealed space to continue processing. When the air quality monitoring component 302 detects that the concentration of harmful substances in the waste gas is lower than the specified standard, the exhaust pipe 102 at the corresponding position is opened to discharge the waste gas.

[0031] Among them Figure 1-4 As shown, a plurality of drain pipes 103 are inserted and connected from top to bottom on one side of the outer peripheral surface of the exhaust gas treatment tower 1, and the plurality of drain pipes 103 are respectively located at the top of the plurality of sealing partitions 3 and the bottom of one side of the exhaust gas treatment tower 1, and a plurality of exhaust pipes 102 are respectively located at the bottom of the plurality of sealing partitions 3 and the top of one side of the exhaust gas treatment tower 1, and an exhaust pipe 106 is inserted and connected on one side of the high-pressure exhaust fan 101, and an air intake pipe 104 is inserted and connected at one end of the high-pressure exhaust fan 101, and a non-return valve 105 is inserted and connected on the outer peripheral surface of the air intake pipe 104, and one end of the air intake pipe 104 is inserted and connected to one side of the exhaust gas treatment tower 1, and the air intake pipe 104 is located at the bottom of the plurality of sealing partitions 3;

[0032] During industrial production, the high-pressure exhaust fan 101 is turned on to draw the waste gas into the waste gas treatment tower 1 through the exhaust pipe 106 and the air inlet pipe 104, and the waste gas is treated with the treatment liquid. After a certain treatment time and a certain amount of treatment liquid has accumulated, the drain pipe 103 is opened to discharge the treatment liquid. When the waste gas is monitored to reach the emission standard in a sealed space, the exhaust pipe 102 is opened to discharge the waste gas in the corresponding space.

[0033] Among them Figure 1 , 5As shown, a liquid inlet pipe 204 is inserted through one end of the liquid pump 201, a liquid pipe 202 is inserted through the top of the outer peripheral surface of the liquid pump 201, and a plurality of nozzles 203 are inserted through one end of the outer peripheral surface of the liquid pipe 202, and the nozzles 203 are located on the inner side of the exhaust gas treatment tower 1. The liquid pipe 202 is inserted through the top of the sealing cover 2.

[0034] The treatment liquid is pumped into the liquid pipe 202 by the liquid pump 201, and is sprayed into a plurality of relatively sealed spaces in the waste gas treatment tower 1 by the nozzle 203, so that the treatment liquid and the waste gas are fully in contact and the waste gas is treated.

[0035] Among them Figure 1 , 6 As shown, the bottom of each sealing partition 3 penetrates and is connected with a limit protection frame 303, the air quality monitoring component 302 is located inside the limit protection frame 303, and the liquid pipe 202 penetrates and is plugged into the top of multiple sealing partitions 3;

[0036] The exhaust gas that continuously enters the exhaust gas treatment tower 1 increases the air pressure in a separated space in the exhaust gas treatment tower 1. When the air pressure reaches the threshold, the air pressure valve 301 opens and allows part of the exhaust gas to enter the adjacent sealed space for further treatment, thereby avoiding the mixing of the exhaust gas that continuously enters the exhaust gas treatment tower 1 and the exhaust gas that has been treated for a certain period of time. The exhaust gas in the corresponding space is monitored by the air quality monitoring component 302. When the exhaust gas reaches the emission standard, the corresponding exhaust pipe 102 is controlled to open to quickly discharge the high-pressure exhaust gas.

[0037] The specific working principle of the utility model is as follows: the liquid inlet pipe 204 is connected to the storage structure of the treatment liquid, and the air inlet pipe 104 is connected to the gas collecting hood, etc. When the waste gas is treated, the high-pressure exhaust fan 101 is started to draw the waste gas into the waste gas treatment tower 1 through the exhaust pipe 106 and the air inlet pipe 104, and the liquid pump 201 sprays the treatment liquid into the waste gas treatment tower 1 through the liquid inlet pipe 204 and the liquid pipe 202, and contacts and reacts with the waste gas. When the air pressure in a space reaches the threshold value, the air pressure valve 301 opens and allows part of the waste gas to enter the adjacent sealed space for further treatment, so as to avoid the waste gas that continuously enters the waste gas treatment tower 1 and the waste gas that has been treated for a certain period of time from mixing. The waste gas in the corresponding space is monitored by the air quality monitoring component 302. When the waste gas reaches the emission standard, the corresponding exhaust pipe 102 is controlled to open to quickly discharge the high-pressure waste gas. After a certain period of treatment and a certain amount of treatment liquid is accumulated, the drain pipe 103 is opened to discharge the treatment liquid.

[0038] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A waste gas purification device for desulfurization and denitrification of environmental protection engineering, comprising a waste gas treatment tower (1), a sealing top cover (2) and a sealing partition (3), characterized in that: A high-pressure exhaust fan (101) is arranged at the bottom of one side of the waste gas treatment tower (1), a plurality of exhaust pipes (102) are inserted and clamped through one side of the waste gas treatment tower (1) from top to bottom, a sealed top cover (2) is clamped and fixed at the top of the waste gas treatment tower (1), a liquid pump (201) is arranged at the bottom of one side of the waste gas treatment tower (1), a plurality of sealed baffles (3) are clamped and fixed from top to bottom in the waste gas treatment tower (1), a plurality of air pressure valves (301) are inserted and clamped through the top of each sealed baffle (3), and an air quality monitoring component (302) is clamped and fixed at the bottom of each sealed baffle (3).

2. The exhaust gas purification device for desulfurization and denitrification of environmental protection engineering according to claim 1 is characterized by: A plurality of drain pipes (103) are inserted and connected from top to bottom on one side of the outer peripheral surface of the exhaust gas treatment tower (1); the plurality of drain pipes (103) are respectively located at the top of the plurality of sealing partitions (3) and the bottom of one side of the exhaust gas treatment tower (1); and the plurality of exhaust pipes (102) are respectively located at the bottom of the plurality of sealing partitions (3) and the top of one side of the exhaust gas treatment tower (1).

3. The exhaust gas purification device for desulfurization and denitrification of environmental protection engineering according to claim 1 is characterized by: An exhaust pipe (106) is inserted through one side of the high-pressure exhaust fan (101) and is clamped thereon. An intake pipe (104) is inserted through one end of the high-pressure exhaust fan (101) and is clamped thereon. A one-way valve (105) is inserted through the outer peripheral surface of the intake pipe (104) and is clamped thereon. One end of the intake pipe (104) is inserted through one side of the waste gas treatment tower (1) and is clamped thereon. The intake pipe (104) is located at the bottom of a plurality of sealing partitions (3).

4. The exhaust gas purification device for desulfurization and denitrification of environmental protection engineering according to claim 1 is characterized by: A liquid inlet pipe (204) is inserted through one end of the liquid pump (201) and is clamped thereon; a liquid passage pipe (202) is inserted through the top of the outer peripheral surface of the liquid pump (201) and is clamped thereon; a plurality of nozzles (203) are inserted through one end of the outer peripheral surface of the liquid passage pipe (202) and are clamped thereon; the nozzles (203) are located on the inner side of the waste gas treatment tower (1); and the liquid passage pipe (202) is inserted through the top of the sealing top cover (2) and is clamped thereon.

5. The exhaust gas purification device for desulfurization and denitrification of environmental protection engineering according to claim 4 is characterized by: The bottom of each sealing baffle (3) penetrates and is connected to a limit protection frame (303), the air quality monitoring component (302) is located inside the limit protection frame (303), and the liquid passage pipe (202) penetrates and is plugged into the tops of the plurality of sealing baffles (3).

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