Waste gas filtering device of spray drying tower

Abstract

The utility model belongs to the technical field of walnut powder processing waste gas treatment, and particularly relates to a spray drying tower waste gas filtering device which comprises a purification tower, a driving motor is mounted on the outer side of the bottom end of the purification tower, a rotating shaft is mounted at the output end of the driving motor, a rotating disc is mounted at one end of the rotating shaft, and a connecting rod is mounted at the edge of the rotating disc. A sliding rod is slidably mounted in the supporting plate, a hollow plate is mounted at the bottom end of the sliding rod, one end of the connecting rod is slidably mounted in the hollow plate, and a spraying cavity is formed in the bottom side of the hollow plate; a driving motor is started, a rotating shaft at the output end of the driving motor drives a rotating disc to rotate, and a connecting rod at the edge of the rotating disc performs circular motion, so that a hollow plate and a sliding rod slide up and down along a supporting plate, and then a spraying cavity is driven to move up and down; the spraying liquid can be in comprehensive contact with waste gas at different heights in the purification tower, so that pollutants such as dust in the waste gas are fully mixed with the spraying liquid, and the filtering efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology in walnut powder processing, specifically a waste gas filtration device for spray drying towers. Background Technology

[0002] When walnut powder is used in a spray drying tower, the organic components in the walnut powder will volatilize due to the high temperature. At higher temperatures, some oils will vaporize and form waste gas together with water vapor and entrained walnut powder particles. Therefore, a waste gas filtration device is required.

[0003] A Chinese patent with authorization announcement number CN116272210A discloses a waste gas purification spray tower, including a tower body with an integrated air outlet at the top and an air supply pipe installed at the top of the air outlet. The secondary filtration component includes an outer base plate with two insert frames fixed on one side, and activated carbon filter elements installed inside the insert frames. The secondary filtration component can further filtration and purify the purified waste gas after it has been sprayed and purified in the tower. This improves the waste gas treatment efficiency, reduces the pressure on the waste gas treatment equipment in subsequent processes, and ensures the long-term stable operation of the entire waste gas treatment line. At the same time, the secondary filtration component is easy to remove for replacement or cleaning in the future.

[0004] However, the above-mentioned device still has some problems. In practical applications, the fixed-position spray cannot fully cover the dust at all heights in the exhaust gas, resulting in some dust not being able to fully contact the spray liquid, which will reduce the filtration effect on the exhaust gas. Therefore, a spray drying tower exhaust gas filtration device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a spray drying tower exhaust gas filtration device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A spray drying tower exhaust gas filtration device of this utility model includes a base plate, a purification tower installed on the top side of the base plate, a drive motor installed on the outer side of the bottom end of the purification tower, a rotating shaft installed at the output end of the drive motor, one end of the rotating shaft penetrating into the interior of the purification tower and having a turntable installed thereon, a connecting rod installed at the edge of the turntable, a support plate fixedly connected to the inner walls of the purification tower, a sliding rod slidably installed inside the support plate, and a hollow plate installed at the bottom end of the sliding rod. Furthermore, one end of the connecting rod is slidably installed inside the hollow plate. A spray chamber is installed on the bottom side of the hollow plate, and a water storage tank is assembled on one end of the top side of the bottom plate. A conveying pipe is connected inside the water storage tank. One end of the conveying pipe slides through the interior of the purification tower and is connected to the spray chamber. The end of the conveying pipe connected to the spray chamber is a flexible hose, and the end connected to the water storage tank is a rigid pipe. A pump is assembled on the outer side of the end of the conveying pipe near the water storage tank, which enables the spray chamber to move up and down, enhances the contact effect between the spray liquid and the dust in the exhaust gas, and improves the filtration efficiency.

[0007] Preferably, a fixing plate is installed on the outer side of the bottom of the purification tower, and an installation cavity is installed on the top side of the fixing plate. An air inlet pipe is connected to one side of the installation cavity. One end of the air inlet pipe is connected to the top of the spray drying tower. A groove is opened inside the one end of the air inlet pipe, and a filter cartridge is installed inside the groove. When air is introduced, large particulate impurities are initially filtered to improve the subsequent purification efficiency.

[0008] Preferably, a support column is installed on the inner wall of the mounting cavity, and a negative pressure motor is installed at the top of the support column. The output end of the negative pressure motor is equipped with three fan blades to facilitate the intake of waste gas from the spray drying tower into the purification tower.

[0009] Preferably, a connecting pipe is rotatably installed inside one side of the mounting cavity, one end of the connecting pipe penetrates the purification tower, and several air nozzles are equidistantly installed on the outer side of the connecting pipe. A driven gear is installed on the outer side of one end of the connecting pipe, and a servo motor is installed on the top side of the mounting cavity. A driving gear is installed on the output end of the servo motor, and the driving gear and the driven gear mesh with each other to evenly distribute the exhaust gas into the interior of the purification tower, thereby improving the contact efficiency between the exhaust gas and the sprayed liquid.

[0010] Preferably, a filter screen is installed at the middle of the purification tower, and an air outlet pipe is connected to the top side of the purification tower. A sliding groove is opened inside the air outlet pipe, and an activated carbon filter plate is installed inside the sliding groove. A side ear is installed on one side of the air outlet pipe, and a pin is installed through the activated carbon filter plate inside the side ear. This further filters fine dust and odors, and allows the activated carbon filter plate to be easily removed for cleaning.

[0011] Preferably, a control panel is installed on one side of the water storage tank. The control panel is used to operate and control the electrical components inside the device, which facilitates centralized control of the electrical components inside the device.

[0012] The advantages of this utility model are:

[0013] 1. The starting drive motor of this utility model drives the turntable to rotate through the rotating shaft at its output end. The connecting rod then makes a circular motion, causing the hollow plate and the sliding rod to slide up and down along the support plate, thereby driving the spray chamber to move up and down. During the up and down movement, the liquid sprayed from the spray chamber can fully contact the exhaust gas at different heights in the purification tower, so that the dust and other pollutants in the exhaust gas are fully mixed with the spray liquid, thereby improving the filtration efficiency.

[0014] 2. When the servo motor of this utility model starts, the active gear at its output end drives the driven gear that meshes with it to rotate, which in turn drives the connecting pipe to rotate and the blower nozzle to rotate as well. This evenly distributes the inhaled exhaust gas into the purification tower, making the exhaust gas more evenly distributed in the purification tower. This increases the contact area between the exhaust gas and the sprayed liquid in the subsequent purification process, improves the contact efficiency, and helps to remove pollutants in the exhaust gas more thoroughly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the exhaust gas filtration device.

[0018] Figure 3 This is a schematic diagram of the up-and-down movement structure of the spray assembly;

[0019] Figure 4 This is a schematic diagram of a partial structure at the bottom of the purification tower;

[0020] Figure 5 This is a schematic diagram of the air intake uniformity component.

[0021] In the diagram: 1. Base plate; 2. Purification tower; 3. Drive motor; 4. Rotating shaft; 5. Turntable; 6. Connecting rod; 7. Support plate; 8. Slide rod; 9. Hollow plate; 10. Spray chamber; 11. Water storage tank; 12. Delivery pipe; 13. Pump; 14. Fixing plate; 15. Mounting cavity; 16. Air inlet pipe; 17. Groove; 18. Filter cartridge; 19. Support column; 20. Negative pressure motor; 21. Fan blade; 22. Connecting pipe; 23. Air nozzle; 24. Driven gear; 25. Servo motor; 26. Drive gear; 27. Filter screen; 28. Air outlet pipe; 29. ​​Activated carbon filter plate; 30. Side lug; 31. Pin; 32. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-3As shown, a spray drying tower exhaust gas filtration device includes a base plate 1. A purification tower 2 is installed on the top side of the base plate 1. A drive motor 3 is installed on the outer side of the bottom end of the purification tower 2. A rotating shaft 4 is installed at the output end of the drive motor 3. One end of the rotating shaft 4 passes through the interior of the purification tower 2 and is fitted with a turntable 5. A connecting rod 6 is installed at the edge of the turntable 5. A support plate 7 is fixedly connected between the inner walls of the purification tower 2. A sliding rod 8 is slidably installed inside the support plate 7. The bottom end of the sliding rod 8... A hollow plate 9 is installed, and one end of a connecting rod 6 is slidably installed inside the hollow plate 9. A spray chamber 10 is installed on the bottom side of the hollow plate 9, and a water storage tank 11 is assembled on one end of the top side of the bottom plate 1. A conveying pipe 12 is connected inside the water storage tank 11. One end of the conveying pipe 12 slides through the interior of the purification tower 2 and is connected to the spray chamber 10. The end of the conveying pipe 12 connected to the spray chamber 10 is a flexible hose, and the end connected to the water storage tank 11 is a rigid pipe. The conveying pipe 12 is located near the water storage tank. A pump 13 is mounted on the outer side of one end of the tank 11, and a control panel 32 is installed on one side of the water tank 11. During operation, in practical applications, the fixed-position spray cannot fully cover the dust at all heights in the exhaust gas, resulting in some dust not being able to fully contact the spray liquid, which reduces the filtration effect on the exhaust gas. Under the action of the pump 13, the water in the water tank 11 is transported to the spray chamber 10 through the delivery pipe 12. At this time, the drive motor 3 is started, and the rotating shaft 4 at its output end drives the turntable 5 to rotate. The connecting rod 6 at the edge of the turntable 5 then makes a circular motion, causing the hollow plate 9 and the sliding rod 8 to slide up and down along the support plate 7, thereby driving the spray chamber 10 to move up and down. During the up and down movement, the liquid sprayed from the spray chamber 10 can fully contact the exhaust gas at different heights in the purification tower 2, so that the dust and other pollutants in the exhaust gas are fully mixed with the spray liquid. The dust and water combine to form a mud-like substance, which falls onto the filter screen 27 under the action of gravity, thereby achieving effective removal of dust from the exhaust gas and improving the filtration efficiency.

[0024] Please see Figure 1-5 As shown, a fixing plate 14 is installed on the outer side of the bottom end of the purification tower 2, and an installation cavity 15 is installed on the top side of the fixing plate 14. An air inlet pipe 16 is connected to one side of the installation cavity 15. One end of the air inlet pipe 16 is connected to the top of the spray drying tower. A groove 17 is opened inside one end of the air inlet pipe 16, and a filter cylinder 18 is assembled inside the groove 17.

[0025] The inner wall of the mounting cavity 15 is equipped with a support column 19, the top of the support column 19 is equipped with a negative pressure motor 20, and the output end of the negative pressure motor 20 is equipped with three fan blades 21.

[0026] A connecting pipe 22 is rotatably installed inside one side of the mounting cavity 15. One end of the connecting pipe 22 passes through the purification tower 2. Several air nozzles 23 are equidistantly installed on the outer side of the connecting pipe 22. A driven gear 24 is installed on the outer side of one end of the connecting pipe 22. A servo motor 25 is installed on the top side of the mounting cavity 15. A driving gear 26 is installed on the output end of the servo motor 25, and the driving gear 26 and the driven gear 24 mesh with each other.

[0027] A filter screen 27 is installed at the middle of the purification tower 2. An exhaust pipe 28 is connected to the top side of the purification tower 2. A sliding groove is opened inside the exhaust pipe 28. An activated carbon filter plate 29 is installed inside the sliding groove. A side ear 30 is installed on one side of the exhaust pipe 28. A pin 31 is installed inside the side ear 30 through the activated carbon filter plate 29. When working, when walnut powder is used in the spray drying tower, the organic components in the walnut powder will volatilize due to the high temperature. At higher temperatures, some oil will vaporize and form waste gas together with water vapor and entrained walnut powder particles. Therefore, a waste gas filtration device is required. The negative pressure motor 20 is started, and its three fan blades 21 at the output end rotate at high speed. The rotation of the fan blades 21 generates negative pressure in the installation cavity 15 and provides power for the waste gas to enter the purification tower 2. Thus, the waste gas in the spray drying tower enters the installation cavity 15 through the air inlet pipe 16. The waste gas first passes through the filter cylinder 18. The filter cylinder 18 can intercept large particulate impurities in the waste gas and reduce the burden on subsequent purification stages.

[0028] At the same time, the servo motor 25 starts, and the active gear 26 at its output end drives the driven gear 24 that meshes with it to rotate, which in turn drives the connecting pipe 22 to rotate and the blower nozzle 23 to rotate as well, so that the inhaled exhaust gas is evenly sprinkled into the interior of the purification tower 2, making the exhaust gas more evenly distributed in the purification tower 2, increasing the contact area between the exhaust gas and the sprayed liquid in the subsequent purification process, improving the contact efficiency, and helping to remove pollutants in the exhaust gas more thoroughly.

[0029] Subsequently, the waste gas continues to rise. The filter screen 27 can further intercept the fine dust particles remaining in the waste gas and perform secondary filtration. After being purified by spraying, the waste gas continues to rise and passes through the exhaust pipe 28. The activated carbon filter plate 29 performs final treatment on the waste gas, which can adsorb odor substances in the waste gas, so that the waste gas is deeply purified.

[0030] When it is necessary to clean or replace the activated carbon filter plate 29, the activated carbon filter plate 29 can be easily removed by taking out the pin 31 that passes through the activated carbon filter plate 29 inside the side ear 30.

[0031] Working principle: When the negative pressure motor 20 is started, the three fan blades 21 at its output end rotate at high speed. The rotation of the fan blades 21 generates negative pressure in the installation cavity 15 and provides power for the exhaust gas to enter the purification tower 2. Thus, the exhaust gas in the spray drying tower enters the installation cavity 15 through the air inlet pipe 16. The exhaust gas first passes through the filter cartridge 18. The filter cartridge 18 can intercept large particulate impurities in the exhaust gas, reducing the burden on subsequent purification stages.

[0032] At the same time, the servo motor 25 starts, and the active gear 26 at its output end drives the driven gear 24 that meshes with it to rotate, which in turn drives the connecting pipe 22 to rotate and the blower nozzle 23 to rotate as well, so that the inhaled exhaust gas is evenly sprinkled into the interior of the purification tower 2, making the exhaust gas more evenly distributed in the purification tower 2, increasing the contact area between the exhaust gas and the sprayed liquid in the subsequent purification process, improving the contact efficiency, and helping to remove pollutants in the exhaust gas more thoroughly.

[0033] Subsequently, the waste gas continues to rise, and the filter screen 27 can further intercept the fine dust particles remaining in the waste gas, thus performing secondary filtration of the waste gas;

[0034] Water in the water storage tank 11 is pumped to the spray chamber 10 through the delivery pipe 12 by the pump 13. At this time, the drive motor 3 is started, and the rotating shaft 4 at its output end drives the turntable 5 to rotate. The connecting rod 6 at the edge of the turntable 5 then makes a circular motion, causing the hollow plate 9 and the sliding rod 8 to slide up and down along the support plate 7, thereby driving the spray chamber 10 to move up and down. During the up and down movement, the liquid sprayed from the spray chamber 10 can come into full contact with the exhaust gas at different heights in the purification tower 2, so that the dust and other pollutants in the exhaust gas are fully mixed with the spray liquid. The dust and water combine to form a mud-like substance, which falls onto the filter screen 27 under the action of gravity, thereby achieving effective removal of dust from the exhaust gas and improving the filtration efficiency.

[0035] After being purified by spraying, the exhaust gas continues to rise and undergoes final treatment through the exhaust pipe 28 and activated carbon filter plate 29, which can adsorb odor substances in the exhaust gas, thus achieving deep purification of the exhaust gas.

[0036] When it is necessary to clean or replace the activated carbon filter plate 29, the activated carbon filter plate 29 can be easily removed by taking out the pin 31 that passes through the activated carbon filter plate 29 inside the side ear 30.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A spray drying tower exhaust gas filtration apparatus, characterized by: The utility model provides a water purification device, including bottom plate (1), the top side of bottom plate (1) is equipped with purification tower (2), the bottom end outside of purification tower (2) is equipped with drive motor (3), the output of drive motor (3) is equipped with rotating shaft (4), and one end of rotating shaft (4) penetrates to the inside of purification tower (2) and is equipped with rotating disc (5), and the edge of rotating disc (5) is equipped with connecting rod (6), and the inner wall between purification tower (2) is fixed with support plate (7), the inside of support plate (7) is equipped with sliding rod (8), the bottom end of sliding rod (8) is equipped with hollow plate (9), and one end of connecting rod (6) is slidably installed in the inside of hollow plate (9), the bottom side of hollow plate (9) is equipped with spray cavity (10), one end of the inside of the water storage tank (11) is equipped with the conveying pipe (12) of being slidably penetrated to the inside of purification tower (2) and being communicated with spray cavity (10) arrangement, and the one end of conveying pipe (12) and spray cavity (10) is connected with the soft pipe of the one end of conveying pipe (12) and water storage tank (11) connection, and the one end of conveying pipe (12) is close to water storage tank (11) and is equipped with pump machine (13) outside.

2. A spray drying column exhaust filter apparatus according to claim 1, wherein: The bottom end outside of purification tower (2) is equipped with fixed plate (14), the top side of fixed plate (14) is equipped with mounting cavity (15), one side of mounting cavity (15) is connected with air inlet pipe (16), one end of air inlet pipe (16) is communicated with the top end of spray drying tower and is arranged, and the inside of one end of air inlet pipe (16) is provided with recess (17), and the inside of recess (17) is equipped with filter cylinder (18).

3. A spray drying column exhaust filter apparatus according to claim 2, wherein: The inner wall of mounting cavity (15) is equipped with support column (19), the top end of support column (19) is equipped with negative pressure motor (20), and the output of negative pressure motor (20) is equipped with three fan blades (21).

4. A spray drying column exhaust filter apparatus according to claim 3, wherein: One end of the inside of one side of mounting cavity (15) is rotatably installed with connecting pipe (22), and one end of connecting pipe (22) is arranged through purification tower (2), and a plurality of air blow nozzles (23) are installed at equal intervals outside connecting pipe (22), and one end of connecting pipe (22) is installed with driven gear (24) outside, and the top side of mounting cavity (15) is equipped with servo motor (25), and the output of servo motor (25) is equipped with driving gear (26), and driving gear (26) and driven gear (24) are engaged with each other.

5. A spray drying column exhaust filter apparatus as claimed in claim 4, wherein: The middle end position of purification tower (2) is equipped with filter screen (27), and the top side of purification tower (2) is connected with air outlet pipe (28), and the inside of air outlet pipe (28) is provided with sliding groove, and the inside of sliding groove is equipped with activated carbon filter plate (29), and one side of air outlet pipe (28) is equipped with side lug (30), and the inside of side lug (30) is installed with pin shaft (31) and penetrates activated carbon filter plate (29).

6. A spray drying column exhaust filter apparatus as defined in claim 1, wherein: One side of water storage tank (11) is equipped with control panel (32), and the control panel (32) is used for operating control of electrical elements in the device.

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