A waste gas settlement collection mechanism of a grain drying tower

Abstract

The utility model discloses a waste gas settlement collection mechanism of grain drying tower, specifically at waste gas treatment technical field, including waste gas treatment box, the one side of waste gas treatment box is equipped with the gas inlet, one side is equipped with the exhaust port, and the inside of waste gas treatment box still is provided with waste gas filter assembly and spray settlement subassembly, still including the waste liquid recovery structure of waste liquid filtration recovery, and waste liquid recovery structure includes the liquid collecting hopper and recovery tank of installation in waste gas treatment box bottom, the utility model discloses setting spray settlement subassembly in waste gas treatment box, can realize the uniform settlement of waste gas, improve the settlement effect of waste gas, avoid the problem that waste gas and water body contact are not fully, lead to the problem of waste gas incomplete settlement, and utilize the setting of waste liquid recovery structure, can filter, recycle the wastewater produced when waste gas settlement to realize the recycling of wastewater, avoid the problem that wastewater directly discharges, causes the problem of water resource waste.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a waste gas settling and collection mechanism for a grain drying tower. Background Technology

[0002] A grain drying tower is an agricultural device used for drying grains. Its core function is to reduce the moisture content of grains through hot air circulation, ensuring safe storage. During the grain drying process, dust-laden exhaust gas is often generated. If directly discharged into the air, this would cause air pollution. Therefore, existing systems typically employ exhaust gas settling and collection mechanisms to collect and settle the exhaust gas from the grain drying tower, achieving waste gas treatment and environmental protection goals.

[0003] Existing patent documents, such as application number 202123275269.5, disclose a waste gas settling and collection mechanism for a grain drying tower. This mechanism typically pre-filters the waste gas using a filter (including an activated carbon filter), then introduces the filtered waste gas into a water tank. The waste gas comes into contact with water, which adsorbs and settles airborne dust particles in the tank, while the gas is discharged through an exhaust port. However, existing waste gas settling and collection mechanisms have several drawbacks. First, when the gas is discharged into the water tank, it tends to exit directly without fully contacting the water, resulting in poor adsorption and the presence of airborne dust. Second, the settled wastewater cannot be recycled; direct discharge leads to water waste, which is detrimental to the waste gas treatment of the grain drying tower. Utility Model Content

[0004] The purpose of this invention is to provide a waste gas settling and collection mechanism for a grain drying tower to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste gas settling and collection mechanism for a grain drying tower, comprising a waste gas treatment box, wherein an air inlet is provided on one side of the waste gas treatment box and an exhaust outlet is provided on the other side, and a waste gas filtration assembly and a spray settling assembly are also provided inside the waste gas treatment box. The spray settling assembly includes a spray plate installed at the top inside the exhaust gas treatment box, and nozzles evenly distributed along its length are installed at the bottom of the spray plate. It also includes a waste liquid recovery structure for filtering and recovering waste liquid, and the waste liquid recovery structure includes a collection hopper and a recovery box installed at the bottom of the waste gas treatment box. A drain valve is connected to one side of the recovery box, and a connecting pipe is connected between the top of the recovery box and the bottom of the collection hopper. The bottom of the collection hopper is funnel-shaped, and a waste liquid filter is installed inside the collection hopper. The bottom of the waste gas treatment box is also provided with a drain hole that connects the collection hopper to the inside of the waste gas treatment box. The waste liquid filter element includes a filter frame, and multiple filter screens are embedded inside the filter frame.

[0006] Preferably, the liquid collecting hopper is further provided with a snap-fit ​​assembly for quick assembly and disassembly of the waste liquid filter element. The snap-fit ​​assembly includes inserts fixed to both sides of the inner wall of the liquid collecting hopper. The inserts have two symmetrically distributed inner cavities, and each inner cavity is provided with a spring. Both ends of the two springs are connected to a locking block that can extend to the outside of the insert. The filter frame has slots on both sides that mate with the inserts, and the inner walls of the slots have locking holes on both sides that mate with the locking blocks. The liquid collecting hopper has a slot for assembling and disassembling the filter frame on one side, and a pull plate is fixed to one side of the filter frame to seal the slot.

[0007] Preferably, a water storage tank and a water pump are also installed at the bottom of the exhaust gas treatment box, and one end of the water pump is connected to the water storage tank through a pipe, while the other end is connected to the spray plate through a delivery pipe.

[0008] Preferably, the waste liquid recovery structure further includes a circulation pump installed at the bottom of the waste gas treatment box. One end of the circulation pump is connected to the water storage tank via a circulation pipe, and the other end is connected to the recovery box via a pipe.

[0009] Preferably, the exhaust gas filtration assembly includes a first filter plate, an activated carbon filter plate, and a second filter plate arranged sequentially along the exhaust gas flow direction.

[0010] Preferably, the interior of the exhaust gas treatment box is also equipped with an air guide hood, which divides the interior of the exhaust gas treatment box into a filtration chamber and a settling chamber. The exhaust gas filtration assembly is located in the filtration chamber, and the spray settling assembly is located in the settling chamber.

[0011] Preferably, baffles are installed at the top and bottom of the settling chamber, and a gap is left between one end of the two baffles and the inner wall of the exhaust gas treatment box. A guide plate is also fixed to the inner wall of the exhaust gas treatment box, and the guide plate and the two baffles divide the settling chamber to form a channel for exhaust gas flow. The spray plate is located between the two baffles.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. A spray settling component is installed in the exhaust gas treatment box to spray the exhaust gas. The water body is used to adsorb and settle the floating dust mixed in the exhaust gas, thereby achieving uniform settling of the exhaust gas, improving the settling effect of the exhaust gas, and avoiding the problem of incomplete settling of exhaust gas due to insufficient contact between exhaust gas and water body. Furthermore, by utilizing the waste liquid recovery structure, the wastewater generated during the settling of exhaust gas can be filtered and recovered, thereby realizing the recycling of wastewater and avoiding the direct discharge of wastewater, which would cause water waste. This would help save water resources and reduce the water cost during the settling treatment of exhaust gas in the grain drying tower. 2. The exhaust gas treatment box is also equipped with baffles and guide plates, which can divide the interior of the exhaust gas treatment box into an S-shaped channel to turbulent the exhaust gas, thereby slowing down the flow rate of the exhaust gas, increasing the flow of the exhaust gas, facilitating the uniform spraying of the exhaust gas by the spray plate, further improving the dust reduction effect of the exhaust gas, and achieving effective treatment of the exhaust gas. 3. The snap-fit ​​assembly allows for quick assembly and disassembly of the filter screen, facilitating cleaning or replacement and ensuring its filtration efficiency, while also promoting the recycling of waste liquid. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 for Figure 3 The front view; Figure 5 This is a schematic diagram of the exhaust gas filtration assembly. Figure 6 This is a schematic diagram of the waste liquid recovery structure; Figure 7 This is a partial cross-sectional view of the filter box; Figure 8 This is a partial sectional view of the insert; Figure 9 for Figure 7 Enlarged view of point A in the image; Figure 10 for Figure 8 Enlarged view of point B in the image.

[0015] Explanation of reference numerals in the attached figures: 1. Exhaust gas treatment box; 2. Air inlet; 3. Exhaust outlet; 4. Water storage tank; 5. Recovery tank; 6. Circulation pump; 7. Waste liquid recovery structure; 71. Liquid collection hopper; 72. Filter frame; 73. Filter screen; 74. Pull plate; 75. Insert strip; 76. Slot; 77. Locking hole; 78. Locking block; 79. Spring; 8. Circulation pipe; 9. Delivery pipe; 10. Water pump; 11. Exhaust gas filtration assembly; 111. First filter plate; 112. Activated carbon filter plate; 113. Second filter plate; 12. Air guide hood; 13. Spray plate; 14. Baffle plate; 15. Drain hole; 16. Guide plate. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] like Figures 1-7 As shown, a waste gas settling and collection mechanism for a grain drying tower includes a waste gas treatment box 1. The waste gas treatment box 1 has an air inlet 2 on one side and an exhaust outlet 3 on the other side. The waste gas treatment box 1 is also equipped with a waste gas filter assembly 11 and a spray settling assembly. The spray settling assembly includes a spray plate 13 installed at the top inside the exhaust gas treatment box 1, and nozzles evenly distributed along its length are installed at the bottom of the spray plate 13. It also includes a waste liquid recovery structure 7 for filtering and recovering waste liquid. The waste liquid recovery structure 7 includes a collection hopper 71 and a recovery box 5 installed at the bottom of the waste gas treatment box 1. A drain valve is connected to one side of the recovery box 5, and a connecting pipe is connected between the top of the recovery box 5 and the bottom of the collection hopper 71. The bottom of the collection hopper 71 is funnel-shaped, and a waste liquid filter element is provided inside the collection hopper 71. The bottom of the waste gas treatment box 1 is also provided with a drain hole 15 that connects the collection hopper 71 and the interior of the waste gas treatment box 1. The waste liquid filter element includes a filter frame 72, and multiple filter screens 73 are embedded inside the filter frame 72.

[0018] Specifically, a water storage tank 4 and a water pump 10 are installed at the bottom of the exhaust gas treatment box 1. One end of the water pump 10 is connected to the water storage tank 4 through a pipe, and the other end is connected to the spray plate 13 through a delivery pipe 9. The water storage tank 4 is equipped with a water filling valve and a waste discharge valve to facilitate the filling and discharge of water in the water storage tank 4.

[0019] Specifically, the exhaust gas filtration assembly 11 includes a first filter plate 111, an activated carbon filter plate 112, and a second filter plate 113, which are sequentially distributed along the exhaust gas flow direction.

[0020] In use, the air inlet 2 can be connected to the exhaust end of the grain drying tower through a pipe. When the grain drying tower discharges waste, the waste gas flows into the waste gas treatment box 1 through the air inlet 2. At this time, the waste gas passes through the first filter plate 111, the activated carbon filter plate 112 and the second filter plate 113 in sequence. At the same time, the water in the water storage tank 4 can be pumped into the spray plate 13 through the conveying pipe 9 by the water pump 10. Then the spray plate 13 sprays the water onto the waste gas through the nozzles to adsorb the floating dust mixed in the waste gas and let it settle at the bottom of the waste gas treatment box 1 with the water. This can achieve uniform settling of the waste gas, improve the settling effect of the waste gas, and avoid the problem of incomplete settling of the waste gas due to insufficient contact between the waste gas and the water. The filtered and adsorbed waste gas is discharged through the exhaust port 3, thus completing the waste gas settling treatment of the grain drying tower and preventing the waste gas discharged from the grain drying tower from causing pollution. Wastewater generated during the waste gas settling process can be discharged into the collection hopper 71 through the drain hole 15. At this time, the filter frame 72 filters the wastewater through its internal filter screen 73. After filtration, the water is discharged into the recycling tank 5 through the pipe and then discharged through the drain valve for external use, thereby realizing the recycling of wastewater and avoiding the problem of wastewater being directly discharged, which would cause water waste. This is conducive to saving water resources, reducing the water cost during the waste gas settling treatment of the grain drying tower, and facilitating the treatment of waste gas from the grain drying tower.

[0021] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, the waste liquid recovery structure 7 also includes a circulation pump 6 installed at the bottom of the waste gas treatment box 1. One end of the circulation pump 6 is connected to the water storage tank 4 via a circulation pipe 8, and the other end is connected to the recovery box 5 via a pipe.

[0022] After the waste liquid is filtered and recycled in the recycling tank 5, the water in the recycling tank 5 can be pumped out by the circulation pump 6 and transported into the water storage tank 4 through the circulation pipe 8, so that the water pump 10 can deliver liquid to the spray plate 13, thereby realizing the recycling of waste liquid, avoiding the waste of water resources, and achieving the goal of saving water resources.

[0023] Meanwhile, in this embodiment, such as Figure 3 and Figure 4 As shown, the interior of the exhaust gas treatment box 1 is also equipped with an air guide hood 12, which divides the interior of the exhaust gas treatment box 1 into a filter chamber and a settling chamber. The exhaust gas filter assembly 11 is located in the filter chamber, and the spray settling assembly is located in the settling chamber.

[0024] After the exhaust gas is fed into the filter chamber through the air inlet 2, it is filtered by the exhaust gas filter assembly 11. The air guide hood 12 can collect the exhaust gas and discharge it into the settling chamber to prevent the exhaust gas from spreading. This makes it easier for the spray plate 13 to spray and adsorb the exhaust gas, thereby improving the dust adsorption effect of the exhaust gas.

[0025] Furthermore, such as Figure 3 and Figure 4 As shown, baffles 14 are installed at the top and bottom of the settling chamber, and there is a gap between one end of the two baffles 14 and the inner wall of the exhaust gas treatment box 1. A guide plate 16 is also fixed to the inner wall of the exhaust gas treatment box 1. The guide plate 16 and the two baffles 14 divide the settling chamber to form a channel for exhaust gas flow. The spray plate 13 is located between the two baffles 14.

[0026] When the exhaust gas is discharged into the settling chamber through the air guide hood 12, the two baffles 14 can turbulently flow the exhaust gas to slow down the flow rate and increase the flow of the exhaust gas, thereby facilitating the spray plate 13 to spray the exhaust gas evenly, further improving the dust reduction effect of the exhaust gas and achieving effective treatment of the exhaust gas.

[0027] In another embodiment, such as Figures 6-10 As shown, the liquid collecting hopper 71 is also equipped with a snap-fit ​​assembly for quick assembly and disassembly of the waste liquid filter element. The snap-fit ​​assembly includes inserts 75 fixed on both sides of the inner wall of the liquid collecting hopper 71. The inserts 75 have two symmetrically distributed inner cavities, and each inner cavity is equipped with a spring 79. Both ends of the two springs 79 are connected to a locking block 78 that can extend to the outside of the inserts 75. The filter frame 72 has slots 76 on both sides that cooperate with the inserts 75. The inner walls of the slots 76 have locking holes 77 on both sides that cooperate with the locking blocks 78. The liquid collecting hopper 71 has a slot for assembling and disassembling the filter frame 72 on one side. A pull plate 74 is fixed on one side of the filter frame 72 to seal the slot.

[0028] When the waste liquid filter needs cleaning or replacement, the filter frame 72 can be pulled by the pull plate 74. At this time, the locking block 78 will be compressed by the spring 79, and then the spring 79 will retract and move the locking block 78 into the inner cavity, so that the locking block 78 can be moved out of the locking hole 77, so that the insert 75 can move along the slot 76. Then, with the cooperation of the insert 75 and the slot 76, the filter frame 72 will be moved out of the groove on the liquid collection hopper 71, completing the disassembly of the filter frame 72. Then the filter screen 73 can be cleaned or replaced. After cleaning or replacement, the filter frame 72 is inserted into the liquid collection hopper 71 through the slot 75 and the slot 76 until the pull plate 74 seals the slot. At this time, the locking block 78 corresponds to the locking hole 77 and is locked into the locking hole 77 under the action of the spring 79 to lock the locking block 75 and complete the installation of the filter screen 73. This enables the quick installation and removal of the filter screen 73, facilitates the cleaning or replacement of the filter screen 73, and helps to ensure the filtration effect of the filter screen 73 and facilitates the recycling of waste liquid.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A waste gas settling and collection mechanism for a grain drying tower, comprising a waste gas treatment box (1), characterized in that: The exhaust gas treatment box (1) has an air inlet (2) on one side and an exhaust outlet (3) on the other side. The exhaust gas treatment box (1) is also equipped with an exhaust gas filter assembly (11) and a spray settling assembly. The spray settling assembly includes a spray plate (13) installed at the top inside the exhaust gas treatment box (1), and nozzles evenly distributed along its length are installed at the bottom of the spray plate (13). It also includes a waste liquid recovery structure (7) for filtering and recovering waste liquid, and the waste liquid recovery structure (7) includes a collection hopper (71) and a recovery box (5) installed at the bottom of the waste gas treatment box (1). A drain valve is connected to one side of the recovery box (5), and a connecting pipe is connected between the top of the recovery box (5) and the bottom of the collection hopper (71). The bottom of the collection hopper (71) is funnel-shaped, and a waste liquid filter is provided inside the collection hopper (71). The bottom of the waste gas treatment box (1) is also provided with a drain hole (15) that connects the collection hopper (71) and the interior of the waste gas treatment box (1). The waste liquid filter includes a filter frame (72), and multiple filter screens (73) are embedded inside the filter frame (72).

2. The waste gas settling and collection mechanism for a grain drying tower according to claim 1, characterized in that: The liquid collection hopper (71) is also provided with a snap-fit ​​assembly for quick assembly and disassembly of the waste liquid filter element. The snap-fit ​​assembly includes inserts (75) fixed on both sides of the inner wall of the liquid collection hopper (71). The inserts (75) have two symmetrically distributed inner cavities, and each inner cavity is provided with a spring (79). Both ends of the two springs (79) are connected to a locking block (78) that can extend to the outside of the inserts (75). The filter frame (72) has slots (76) on both sides that cooperate with the inserts (75). The inner walls of the slots (76) have locking holes (77) on both sides that cooperate with the locking blocks (78). The liquid collection hopper (71) has a slot for assembling and disassembling the filter frame (72). The filter frame (72) has a pull plate (74) fixed on one side to seal the slot.

3. The waste gas settling and collection mechanism of a grain drying tower according to claim 1, characterized in that: The bottom of the exhaust gas treatment box (1) is also equipped with a water storage tank (4) and a water pump (10), and one end of the water pump (10) is connected to the water storage tank (4) through a pipe, and the other end is connected to the spray plate (13) by a delivery pipe (9).

4. The waste gas settling and collection mechanism of a grain drying tower according to claim 3, characterized in that: The waste liquid recovery structure (7) also includes a circulation pump (6) installed at the bottom of the waste gas treatment box (1). One end of the circulation pump (6) is connected to the water storage tank (4) via a circulation pipe (8), and the other end is connected to the recovery box (5) via a pipe.

5. The waste gas settling and collection mechanism of a grain drying tower according to claim 3, characterized in that: The exhaust gas filtration assembly (11) includes a first filter plate (111), an activated carbon filter plate (112), and a second filter plate (113) arranged sequentially along the exhaust gas flow direction.

6. The waste gas settling and collection mechanism for a grain drying tower according to claim 5, characterized in that: The exhaust gas treatment box (1) is also equipped with an air guide hood (12), which divides the interior of the exhaust gas treatment box (1) into a filter chamber and a settling chamber. The exhaust gas filter assembly (11) is located in the filter chamber, and the spray settling assembly is located in the settling chamber.

7. The waste gas settling and collection mechanism of a grain drying tower according to claim 6, characterized in that: The settling chamber is equipped with baffles (14) at the top and bottom, and there is a gap between one end of the two baffles (14) and the inner wall of the exhaust gas treatment box (1). The inner wall of the exhaust gas treatment box (1) is also fixed with a guide plate (16), and the guide plate (16) and the two baffles (14) divide the settling chamber to form a channel for exhaust gas flow. The spray plate (13) is located between the two baffles (14).

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