A dryer exhaust deodorization emission reduction device

Abstract

The utility model discloses a drying -machine waste gas deodorization emission reduction device, including drying -machine body, drying -machine body outer wall is connected with first double material shachlong and second double material shachlong through pipeline respectively, and the output of second double material shachlong is connected with input pipe through pipeline, and the bottom of input pipe is provided with the settling chamber, and a plurality of input pipes are set on the top outer wall of settling chamber, and one end of settling chamber is connected with the spray tower through pipeline, and the top of spray tower is connected with the fan through pipeline, and the bottom outer wall of fan is fixed with water tank, and the output of fan is inserted with fan output pipe, and fan output pipe penetrates in water tank top outer wall, and the top outer wall of water tank is opened and has the exhaust port. The utility model can carry out the first treatment to the waste gas generated by drying -machine through the settling chamber, then carries out the secondary processing of spray tower, then carries out the third processing through water tank, thereby effectively purifying the waste gas and greatly reducing the emission of waste gas with irritating smell.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas deodorization devices, and in particular to a dryer waste gas deodorization and emission reduction device. Background Technology

[0002] In feed production workshops, some materials produce gases with pungent odors when they are dried in dryers. If these gases are released directly, they will affect the surrounding environment, which is not allowed. Therefore, deodorization devices are used to treat them. Currently, the most common treatment method is sedimentation treatment. This method is simple but not very effective. It is not suitable for gases with strong irritating odors, and a lot of irritating odors will still be emitted into the surrounding environment. Therefore, in order to deodorize the odor generated when the dryer dries materials and achieve the purpose of odor reduction, this application designs a dryer exhaust gas deodorization and emission reduction device.

[0003] A search revealed a patent with patent application number CN202322665584.1, which discloses a waste gas treatment device for a grain dryer. The device can automatically clean the filter screen used in the purification process, avoid clogging, improve purification efficiency, and is simple and convenient to operate, flexible in use, and highly practical, meeting the needs of the current market. However, the above technical solutions only use multiple filters to filter the exhaust gas and spray water mist to cool and reduce dust. They do not have corresponding mechanisms to effectively remove the odor from the exhaust gas. Therefore, they still have the problem of not being able to effectively remove the odor from the exhaust gas and achieve the purpose of deodorization and emission reduction. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a deodorization and emission reduction device for dryer exhaust gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dryer exhaust gas deodorization and emission reduction device includes a dryer body. The outer wall of the dryer body is connected to a first dual-material cyclone separator and a second dual-material cyclone separator via pipes. The output end of the second dual-material cyclone separator is connected to an input pipe via a pipe. A settling chamber is provided at the bottom end of the input pipe. Multiple input pipes are provided on the top outer wall of the settling chamber. One end of the settling chamber is connected to a spray tower via a pipe. The top of the spray tower is connected to a fan via a pipe. A water tank is fixed to the bottom outer wall of the fan. The output end of the fan is connected to a fan output pipe, which passes through the top outer wall of the water tank. An exhaust port is opened on the top outer wall of the water tank.

[0006] As a further improvement of this invention: the input end of the first dual-material cyclone is connected to a cooler via a pipeline.

[0007] As a further improvement of this utility model, the dryer body is provided with an input end and an output end at both ends.

[0008] As a further improvement of this utility model: the bottom output end of the fan output pipe is located on the bottom inner wall of the water tank.

[0009] As a further improvement of this utility model: multiple support rods are fixed to the top of the exhaust port, and baffles are fixed to the top of the support rods.

[0010] As a further improvement of this utility model, a one-way valve is inserted into one end of the fan output pipe.

[0011] As a further improvement of this utility model, a filter screen is fitted onto the outer wall of the support rod.

[0012] The beneficial effects of this utility model are as follows: 1. When drying feed materials, exhaust gas is generated inside the dryer. At this time, the fan runs, creating negative pressure in the pipes connecting the spray tower, settling chamber, and dryer. This allows the gas inside the dryer to first enter the settling chamber for initial treatment. The gas after the first treatment also passes through the area of ​​the spray tower under negative pressure for a second treatment. Then, the gas is sprayed into the bottom of the water tank by the fan for a third treatment by the liquid in the water tank. Finally, the gas after the third treatment is discharged from the exhaust port. This process effectively purifies the exhaust gas generated by the dryer while significantly reducing the emission of irritating odors.

[0013] 2. The output end of the blower output pipe is located at the bottom of the water tank. This design ensures that the gas is fully reacted and treated by the liquid in the water tank, improving the deodorization and purification effect of the exhaust gas. By setting multiple input pipes at the top of the settling chamber, this design allows the settling chamber to connect to multiple devices, thus enabling the exhaust gas deodorization and emission reduction device to deodorize multiple devices. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a dryer exhaust gas deodorization and emission reduction device proposed in this utility model; Figure 2 This is a side view of the structure of a dryer exhaust gas deodorization and emission reduction device proposed in this utility model; Figure 3 This is a schematic diagram of the internal structure of the water tank of a dryer exhaust gas deodorization and emission reduction device proposed in this utility model; Figure 4 This is a schematic diagram of the filter screen structure of a dryer exhaust gas deodorization and emission reduction device proposed in this utility model.

[0015] In the diagram: 1-Dryer body, 2-First double-material cyclone separator, 3-Cooler, 4-Input end, 5-Second double-material cyclone separator, 6-Settling chamber, 7-Fan output pipe, 8-Water tank, 9-Exhaust port, 10-Support rod, 11-Fan, 12-Spray tower, 13-Input pipe, 14-Baffle, 15-Output end, 16-One-way valve, 17-Filter screen. Detailed Implementation

[0016] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0017] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0018] Example 1: A device for deodorizing and reducing emissions from dryer exhaust gas, such as... Figure 1-4 As shown, the dryer includes a dryer body 1. The outer wall of the dryer body 1 is connected to a first double-material cyclone 2 and a second double-material cyclone 5 via pipes. The output end of the second double-material cyclone 5 is connected to an input pipe 13 via a pipe. A settling chamber 6 is provided at the bottom end of the input pipe 13. Multiple input pipes 13 are provided on the top outer wall of the settling chamber 6. One end of the settling chamber 6 is connected to a spray tower 12 via a pipe. The top of the spray tower 12 is connected to a fan 11 via a pipe. A water tank 8 is fixed to the bottom outer wall of the fan 11. A fan output pipe 7 is inserted into the output end of the fan 11. The fan output pipe 7 passes through the top outer wall of the water tank 8. An exhaust port 9 is opened on the top outer wall of the water tank 8. The input end of the first dual-material cyclone 2 is connected to a cooler 3 via a pipeline; The dryer body 1 is provided with an input terminal 4 and an output terminal 15 at both ends; The bottom output end of the fan output pipe 7 is located on the bottom inner wall of the water tank 8.

[0019] When using the dryer exhaust gas deodorization and emission reduction device, the feed processing material first enters the dryer body 1 from the input end 4 of the dryer body 1 for drying. After being dried by the dryer body 1, it is discharged from the output end 15 of the dryer body 1. When the material is discharged outward through the output end 15 after being dried by the dryer body 1, the cooler 3 starts to work, and cool gas is input into one end of the output end 15 through the pipeline to cool down the dried material inside the dryer body 1, which facilitates subsequent rapid cooling. When drying feed materials, exhaust gas is generated inside the dryer body 1. At this time, the fan 11 runs, creating a negative pressure in the pipe connecting the spray tower 12, the settling chamber 6, and the dryer body 1. This allows the gas inside the dryer body 1 to first enter the settling chamber 6 for initial treatment. The gas after the first treatment also passes through the area of ​​the spray tower 12 under negative pressure and undergoes a second treatment by the spray tower 12. Subsequently, the gas is sprayed into the bottom of the water tank 8 by the fan 11 and undergoes a third treatment by the liquid in the water tank 6. In this embodiment, the liquid inside the water tank 8 is sodium hypochlorite. After the third treatment, the gas is discharged out through the exhaust port 9. This effectively purifies the exhaust gas generated by the dryer while significantly reducing the emission of exhaust gas with irritating odors.

[0020] A first double-material cyclone separator 2 and a second double-material cyclone separator 5 are installed between the dryer body 1 and the cooler 3, and between the dryer body 1 and the settling chamber 6. This design can play a good role in dust removal. In actual use, the number and installation position of the double-material cyclone separators can be adjusted according to processing requirements.

[0021] By setting multiple input pipes 13 at the top of the settling chamber 6, the settling chamber 6 can be connected to multiple devices, thereby enabling the exhaust gas deodorization and emission reduction device to deodorize multiple devices. The staff can set the corresponding number of input pipes 13 at the top of the settling chamber 6 according to the specific situation.

[0022] In this embodiment, the spray tower 12 is a three-layer spray tower. This design provides good deodorization effect, and staff can also select different models of spray tower 12 according to specific circumstances.

[0023] Meanwhile, the output end of the blower output pipe 7 is located at the bottom of the water tank 8. This design ensures that the gas is fully reacted and treated by the liquid in the water tank 8, thereby improving the deodorization and purification effect of the exhaust gas.

[0024] like Figure 3-4 As shown, a plurality of support rods 10 are fixed to the top of the exhaust port 9, and a baffle 14 is fixed to the top of the support rods 10; the baffle 14 can cover the top of the exhaust port 9, thereby blocking debris and rainwater and preventing external debris and rainwater from affecting the liquid inside the water tank 8.

[0025] Working principle: The feed processing material first enters the dryer body 1 from the input end 4 and is dried. After being dried by the dryer body 1, it is discharged from the output end 15 of the dryer body 1. When the material is discharged outward through the output end 15 after being dried by the dryer body 1, the cooler 3 starts to work. Cooling gas is introduced into one end of the output end 15 through the pipeline to cool down the dried material inside the dryer body 1, which facilitates subsequent rapid cooling. When drying feed materials, exhaust gas is generated inside the dryer body 1. At this time, the fan 11 runs, creating a negative pressure in the pipe connecting the spray tower 12, the settling chamber 6 and the dryer body 1. This allows the gas inside the dryer body 1 to first enter the settling chamber 6 for the first treatment. The gas after the first treatment also passes through the area of ​​the spray tower 12 under negative pressure and is treated a second time by the spray tower 12. Then, the gas is sprayed into the bottom of the water tank 8 by the fan 11 and is treated a third time by the liquid in the water tank 6. Finally, the gas after the third treatment is discharged out through the exhaust port 9.

[0026] Example 2: A device for deodorizing and reducing emissions from dryer exhaust gas, such as... Figure 3-4 The present embodiment makes the following improvements based on embodiment 1: a one-way valve 16 is inserted into one end of the fan output pipe 7; a filter screen 17 is sleeved on the outer wall of the support rod 10; the filter screen 17 can cooperate with the baffle 14 to block and filter the exhaust port 9 at the top, while the one-way valve 16 can prevent the liquid inside the water tank 8 from flowing back into the fan 11, thereby improving the safety and stability of the exhaust gas deodorization and emission reduction device during operation.

[0027] Working principle: The filter screen 17 can work with the baffle 14 to block and filter the exhaust port 9 at the top. At the same time, the one-way valve 16 can prevent the liquid inside the water tank 8 from flowing back into the fan 11.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for deodorizing and reducing emissions from dryer exhaust gas, comprising a dryer body (1), characterized in that, The outer wall of the dryer body (1) is connected to a first double-material cyclone (2) and a second double-material cyclone (5) through pipes. The output end of the second double-material cyclone (5) is connected to an input pipe (13) through a pipe. A settling chamber (6) is provided at the bottom of the input pipe (13). Multiple input pipes (13) are set on the top outer wall of the settling chamber (6). One end of the settling chamber (6) is connected to a spray tower (12) through a pipe. The top of the spray tower (12) is connected to a fan (11) through a pipe. A water tank (8) is fixed on the bottom outer wall of the fan (11). A fan output pipe (7) is inserted into the output end of the fan (11). The fan output pipe (7) passes through the top outer wall of the water tank (8). An exhaust port (9) is opened on the top outer wall of the water tank (8).

2. The deodorization and emission reduction device for dryer exhaust gas according to claim 1, characterized in that, The input end of the first dual-material cyclone (2) is connected to a cooler (3) via a pipeline.

3. The deodorization and emission reduction device for dryer exhaust gas according to claim 1, characterized in that, The dryer body (1) is provided with an input end (4) and an output end (15) at both ends.

4. The deodorization and emission reduction device for dryer exhaust gas according to claim 1, characterized in that, The bottom output end of the blower output pipe (7) is located on the bottom inner wall of the water tank (8).

5. The deodorization and emission reduction device for dryer exhaust gas according to claim 1, characterized in that, The exhaust port (9) has multiple support rods (10) fixed at its top end, and a baffle (14) is fixed at the top end of each support rod (10).

6. The deodorization and emission reduction device for dryer exhaust gas according to claim 4, characterized in that, A one-way valve (16) is inserted into one end of the fan output pipe (7).

7. The deodorization and emission reduction device for dryer exhaust gas according to claim 5, characterized in that, A filter screen (17) is fitted onto the outer wall of the support rod (10).

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