Combined tobacco peculiar smell treatment system

Abstract

The utility model discloses a combined tobacco peculiar smell treatment system which comprises a waste gas collecting room and a peculiar smell treatment room, and a spraying washing device, an injection type low-temperature plasma device and a first fan which are sequentially connected through a gas pipeline are arranged in the peculiar smell treatment room. The gas inlet end of the spraying and washing equipment is communicated with the waste gas collection room through a gas inlet pipeline, a gas collection room is arranged at the top of the peculiar smell treatment room, an air outlet pipe on the first fan penetrates through the roof of the peculiar smell treatment room and extends into the gas collection room, a discharge room is arranged at the top of the waste gas collection room, and a gas outlet pipe on the first fan penetrates through the top of the peculiar smell treatment room and extends into the gas collection room. The gas collecting room is connected with two sets of three-stage spraying and washing systems, and the two sets of three-stage spraying and washing systems are connected with the discharging room through a main pipe. According to the utility model, the odor treatment effect can be improved, and the odor concentration of discharged gas is reduced.

Description

Technical Field

[0001] The utility model relates to a peculiar smell treatment system, in particular to a combined tobacco peculiar smell treatment system. Background Art

[0002] In recent years, the number of residents around cigarette factories has gradually increased. As people gradually pay more attention to environmental issues, cigarette factories have received more external environmental complaints. Environmental protection departments also pay great attention to the emission problems of cigarette factories and often come to the site to check the operation of environmental protection equipment. Therefore, it is particularly important to improve the environmental management level of cigarette factories and reduce the concentration of odor in exhaust gas.

[0003] At present, there are two odor treatment systems for silk production, namely the dehumidification section and the dust removal section, with a processing air volume of 140,000 m / h and a duct diameter of 1.9 meters. Due to the large processing air volume, it is difficult to transform. The current treatment process of the dehumidification section mainly includes spray water washing and injection low-temperature plasma. Our detection of the gas at the discharge port is mainly carried out by professional institutions through the "Three-point Comparison Stink Bag Method" to test the odor concentration of the exhaust gas. This data is dimensionless data. After processing based on the existing system, the odor concentration value of the dehumidification section of the silk production in the joint workshop is generally greater than 407, and the highest reached 724 at one time. Although it is far lower than the national standard 2000, there are still complaints from surrounding residents. Through practical measurements, when the odor concentration value is ≤200, there is no obvious odor in the gas around the factory boundary, and very few people complain. Therefore, it is necessary to improve the odor treatment system to further reduce the odor concentration value. Utility Model Content

[0004] The utility model aims to provide a combined tobacco odor treatment system to solve the technical problems in the prior art, and can improve the odor treatment effect and reduce the odor concentration value of the exhaust gas.

[0005] The utility model provides a combined tobacco odor treatment system, comprising a waste gas collection room and an odor treatment room, wherein the odor treatment room is provided with a spray water washing device, an injection type low-temperature plasma device and a first fan which are connected in sequence through a gas pipeline, the air inlet end of the spray water washing device is connected with the waste gas collection room through an air inlet pipeline, an air collecting room is provided on the top of the odor treatment room, an air outlet pipe on the first fan passes through the roof of the odor treatment room and extends into the air collecting room, an emission room is provided on the top of the waste gas collection room, the air collecting room is connected with two sets of three-stage spray water washing systems, and the two sets of the three-stage spray water washing systems are connected with the emission room through a main pipe.

[0006] In the aforementioned combined tobacco odor treatment system, preferably, a wind cap is installed at the top of the air outlet pipe.

[0007] In the aforementioned combined tobacco odor treatment system, preferably, an emergency exhaust valve is installed on the roof of the air collecting room, and two electric air inlet valves are installed on the side of the air collecting room facing the discharge room.

[0008] In the aforementioned combined tobacco odor treatment system, preferably, the two sets of the three-stage spray water washing systems have the same connection structure, and they both include an air duct, a three-stage spray water washing device and a second fan, and the second fan is arranged downstream of the three-stage spray water washing device, and the second fan is connected to the main pipe through a connecting elbow.

[0009] In the aforementioned combined tobacco odor treatment system, preferably, a cyclone dust removal device is provided at the air inlet end of the three-stage spray water washing device.

[0010] In the aforementioned combined tobacco odor treatment system, preferably, a negative pressure sensor is provided at the air inlet end of the three-stage spray water washing device.

[0011] Compared with the prior art, the utility model includes a waste gas collection room and an odor treatment room. The odor treatment room is provided with a spray water washing device, an injection-type low-temperature plasma device and a first fan which are connected in sequence through a gas pipeline. The air inlet end of the spray water washing device is connected with the waste gas collection room through the air inlet pipeline. An air collecting room is provided on the top of the odor treatment room. The air outlet pipe on the first fan passes through the roof of the odor treatment room and extends into the air collecting room. A discharge room is provided on the top of the waste gas collection room. The air collecting room is connected with two sets of three-stage spray water washing systems. The two sets of three-stage spray water washing systems are connected with the discharge room through a main pipe. The utility model adds an air collection room and two sets of three-stage spray water washing systems to the technology of the traditional spray water washing plus injection low-temperature plasma treatment process. The setting of the air collection room plays a role in stabilizing the pressure, reducing the resistance of the air outlet of the first fan below, and at the same time facilitating the three-stage spray water washing system behind to suck air, playing the role of the new and old systems. The two sets of three-stage spray water washing systems can further reduce the concentration of odor and keep it below 200, ensuring that there is no obvious odor in the gas around the factory boundary and reducing complaints from surrounding residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a top view of the utility model.

[0014] Explanation of the reference numerals: waste gas collection room 1, odor treatment room 2, spray water washing equipment 3, injection type low-temperature plasma equipment 4, first fan 5, air collection room 6, air outlet pipe 7, discharge room 8, main pipe 9, air inlet pipeline 10, wind hood 11, emergency exhaust valve 12, electric air inlet valve 13, including air duct 14, three-stage spray water washing device 15, second fan 16, connecting elbow 17, cyclone dust removal device 18. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0016] Embodiments of the present utility model: Figure 1 and Figure 2 As shown, a combined tobacco odor treatment system includes a waste gas collection room 1 and an odor treatment room 2. The odor treatment room 2 is provided with a spray water washing device 3, an injection type low-temperature plasma device 4 and a first fan 5 which are connected in sequence through a gas pipeline. The air inlet end of the spray water washing device 3 is connected with the waste gas collection room 1 through an air inlet pipeline 10. An air collecting room 6 is provided on the top of the odor treatment room 2. An air outlet pipe 7 on the first fan 5 passes through the roof of the odor treatment room 2 and extends into the air collecting room 6. A discharge room 8 is provided on the top of the waste gas collection room 1. The air collecting room 6 is connected with two sets of three-stage spray water washing systems. The two sets of three-stage spray water washing systems are connected with the discharge room 8 through a main pipe 9.

[0017] The exhaust gas collection room 1 can be a dehumidification room connected to the dehumidification section for collecting exhaust gas, or it can be a dust collection room connected to the dust removal section. The first fan 5 is used to extract the exhaust gas in the exhaust gas collection room 1, and perform the first treatment of the odor through the spray water washing equipment 3 and the injection low-temperature plasma equipment 4, and then collect it in the gas collection room 6. The gas collection room 6 plays a role in stabilizing the pressure. Two sets of three-stage spray water washing systems are used for secondary removal of odor in the exhaust gas.

[0018] In a specific embodiment, a cap 11 is installed at the top of the air outlet pipe 7. The first fan 5 is relatively large and can process an air volume of 140,000 m / h. Therefore, the outlet wind speed of the air outlet pipe 7 is very high, and the cap 11 can prevent the roof from being blown away by excessive wind speed.

[0019] Furthermore, an emergency exhaust valve 12 is installed on the roof of the air collecting room 6, and two electric air inlet valves 13 are installed on the side of the air collecting room 6 facing the discharge room 8. If the three-stage spray water washing system fails, the emergency exhaust valve 12 can be automatically opened and the electric air inlet valve 13 can be closed to achieve the purpose of temporary exhaust.

[0020] Furthermore, since the first fan 5 processes a large amount of air, in order to prevent the leakage of odorous gas in the air collection room 6, two sets of three-stage spray water washing systems are preferably provided. The two sets of three-stage spray water washing systems can disperse the pressure on the one hand and reduce the volume of a single device on the other hand. The two sets of three-stage spray water washing systems have the same connection structure, and they both include an air duct 14, a three-stage spray water washing device 15 and a second fan 16. The second fan 16 is provided downstream of the three-stage spray water washing device 15, and the second fan 16 is connected to the main pipe 9 through a connecting elbow 17; a cyclone dust removal device 18 is provided at the air inlet end of the three-stage spray water washing device 15.

[0021] In this embodiment, since the top space of the odor treatment room 2 is limited, the two three-stage spray water washing devices 15 are staggered. The air inlet end of the three-stage spray water washing device 15 in one set of the three-stage spray water washing systems is directly connected to one of the electric air inlet valves 13 through the cyclone dust removal device 18, and the air outlet end is connected to the air inlet end of the second fan 16 through the air duct 14; the air inlet end of the three-stage spray water washing device 15 in the other set of three-stage spray water washing systems is connected to the other electric air inlet valve 13 through the cyclone dust removal device 18 and the air duct 14, and the air outlet end of the three-stage spray water washing device 15 is directly connected to the air inlet end of the second fan 16. In this way, the two three-stage spray water washing devices 15 can be staggered to make full use of the space.

[0022] The cyclone dust removal device 18 can perform primary filtration on the odorous gas and separate the large impurities in the odorous gas. The three-stage spray water washing device 15 has three spray pumps, so it is called three-stage spray. The total filtration area of ​​the three-stage spray water washing device 15 is 12 square meters. Compared with the spray water washing device 3 in the odor treatment room 2, the filtration wind speed can be reduced by more than 30%, which increases the contact time between the odorous gas and the spray system, and can improve the odor treatment effect.

[0023] Preferably, a negative pressure sensor is provided at the air inlet end of the three-stage spray washing device 15. The operating frequency of the second fan 16 can be controlled by the value of the negative pressure sensor, thereby reducing energy consumption.

[0024] Working principle of the utility model: When the utility model is applied, it is applied to the dehumidification section and the dust removal section at the same time. The exhaust gas collection room 1 can be understood as a dehumidification room connected to the dehumidification section and a dust collection room connected to the dust removal section. The utility model is applied to the dehumidification room and the dust collection room respectively. The odorous exhaust gas is first deodorized by the spray water washing equipment 3 and the injection type low temperature plasma equipment 4 under the action of the first fan 5. After the primary deodorization, the odor concentration value can be reduced to between 400-800. Then the gas is discharged to the gas collection room 6. After being collected in the gas collection room 6, it is respectively drawn to two cyclone dust removal devices 18 and three-stage spray water washing devices 15 for secondary deodorization under the action of two second fans 16. After the secondary deodorization, the odor value can be reduced to below 200. Finally, it is sent to the discharge room 8 through the main pipe 9 for centralized discharge.

[0025] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A combined tobacco odor treatment system, comprising a waste gas collection room (1) and an odor treatment room (2), characterized in that: The odor treatment room (2) is provided with a spray water washing device (3), an injection type low temperature plasma device (4) and a first fan (5) which are connected in sequence through a gas pipeline. The air inlet end of the spray water washing device (3) is connected to the waste gas collection room (1) through an air inlet pipeline (10). The top of the odor treatment room (2) is provided with an air collection room (6). The air outlet pipe (7) on the first fan (5) passes through the roof of the odor treatment room (2) and extends into the air collection room (6). The top of the waste gas collection room (1) is provided with a discharge room (8). The air collection room (6) is connected to two sets of three-stage spray water washing systems. The two sets of the three-stage spray water washing systems are connected to the discharge room (8) through a main pipe (9).

2. The combined tobacco odor treatment system according to claim 1, characterized in that: A wind cap (11) is installed at the top end of the air outlet pipe (7).

3. The combined tobacco odor treatment system according to claim 1, characterized in that: An emergency exhaust valve (12) is installed on the roof of the air collection room (6), and two electric air inlet valves (13) are installed on the side of the air collection room (6) facing the discharge room (8).

4. The combined tobacco odor treatment system according to claim 3, characterized in that: The two sets of three-stage spray water washing systems have the same structure, and both include an air duct (14), a three-stage spray water washing device (15) and a second fan (16). The second fan (16) is arranged downstream of the three-stage spray water washing device (15). The second fan (16) is connected to the main pipe (9) through a connecting elbow (17).

5. The combined tobacco odor treatment system according to claim 4, characterized in that: The air inlet end of the three-stage spray water washing device (15) is provided with a cyclone dust removal device (18).

6. The combined tobacco odor treatment system according to claim 5, characterized in that: The air inlet end of the three-stage spray water washing device (15) is provided with a negative pressure sensor.

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