A VOC waste gas treatment system

Abstract

The present invention relates to the technical field of waste gas treatment, and specifically to a VOC waste gas treatment system, comprising a reaction chamber, a waste gas pipe is fixedly connected to a position near the front end of the left side of the reaction chamber, an oxygen pipe is fixedly connected to a position near the rear end of the left side of the reaction chamber, a supporting leg is fixedly connected to the bottom of the reaction chamber, a load-bearing plate is fixedly connected to the left and right sides of the center of the inner wall of the reaction chamber, an upper end of the load-bearing plate is rotatably connected to an end of the inner wall of the reaction chamber, a filter is fixedly connected to a position near the upper end of the inner wall of the reaction chamber, an outlet pipe is fixedly connected to a position near the upper end of the right side of the reaction chamber, a first air leakage hole is opened at the front end of the oxygen pipe, and a rotating pipe is rotatably connected to the right side of the waste gas pipe, which can drive a friction block to repeatedly rub and generate heat when the waste gas enters the interior of the reaction chamber, thereby increasing the temperature inside the reaction chamber and improving the reaction speed, thereby making the waste gas treatment efficiency more ideal.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a VOC waste gas treatment system. Background Art

[0002] Volatile organic compounds are defined as any organic compound with a boiling point of less than or equal to 250°C under standard atmospheric pressure, referred to as VOCs. Currently, activated carbon adsorption and ultraviolet deodorization are usually used. However, field monitoring in many furniture companies often finds that the standard is exceeded seriously. Companies frequently replace activated carbon, but the standard is still exceeded. Even when the company is not working on spraying, the field monitoring results are only slightly exceeded.

[0003] The existing patent (Announcement No.: CN104028086B) is a VOC waste gas treatment system. The present invention discloses a VOC waste gas treatment system, which includes a fan for connecting to a VOC waste gas source, a packing spray tower device connected to the air outlet of the fan, an ultraviolet activated carbon integrated device connected to the air outlet of the packing spray tower device, and a purified gas discharge port connected to the ultraviolet activated carbon integrated device along the waste gas treatment process; efficient waste gas treatment is achieved by combining the packing spray tower with the ultraviolet activated carbon integrated purifier; firstly, spray washing is performed by the packing spray tower, and the organic waste gas is well dissolved in the purification liquid by using multi-faceted hollow balls, and then the gas and water of the demisting layer are efficiently shared, so that the gas after preliminary treatment is obtained by the packing spray tower; the gas after preliminary treatment is then treated by the ultraviolet activated carbon integrated purifier to obtain clean and qualified gas for discharge; it reduces the volume of the device, has high waste gas treatment efficiency, saves purification costs, and ensures the purification effect of meeting the standards.

[0004] In the above case, the treatment efficiency of the device was improved. However, there are many methods to treat VOC waste gas. The oxidation method is to oxidize the waste gas into carbon dioxide and water through a catalyst. The cost of this device is not high, but the oxidation reaction rate is generally low if it only relies on the catalyst:

[0005] To this end, a VOC waste gas treatment system is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a VOC waste gas treatment system, which can drive the friction block to repeatedly generate heat through friction when the waste gas enters the reaction chamber, thereby increasing the temperature inside the reaction chamber and improving the reaction speed, thereby making the waste gas treatment efficiency more ideal and solving the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A VOC waste gas treatment system comprises a reaction chamber, wherein an exhaust pipe is fixedly connected to a position near the front end of the left side of the reaction chamber, an oxygen pipe is fixedly connected to a position near the rear end of the left side of the reaction chamber, a support leg is fixedly connected to the bottom of the reaction chamber, a load-bearing plate is fixedly connected to both sides of the center of the inner wall of the reaction chamber, a catalyst carrier plate is rotatably connected to an upper end of the load-bearing plate near one end of the inner wall of the reaction chamber, a filter is fixedly connected to a position near the upper end of the inner wall of the reaction chamber, an outlet pipe is fixedly connected to a position near the upper end of the right side of the reaction chamber, a first air leakage hole is opened at the front end of the oxygen pipe, a rotating pipe is rotatably connected to the right side of the exhaust pipe, a second air leakage hole is opened on the surface of the rotating pipe, and the second air leakage hole is inclined, a first support block is fixedly connected to the rear end of the rotating pipe near the left and right sides, a first friction block is fixedly connected to the left and right sides of the first support block, a U-shaped support block is fixedly connected to the front end of the oxygen pipe near the left and right sides, and a second friction block is movably connected to the inner side wall of the U-shaped support block.

[0008] The exhaust gas and oxygen are respectively introduced into the interior of the reaction chamber through the exhaust gas pipe and the oxygen pipe, and then the exhaust gas is oxidized by the catalyst on the catalyst carrier plate. After the reaction, the gas is filtered through the filter to filter solid particles. When the gas enters the rotating pipe from the exhaust gas pipe, the rotating pipe can be rotated because the second leakage hole on the rotating pipe is designed to be inclined. The rotation of the rotating pipe drives the first support block to rotate, and the rotation of the first support block drives the first friction block to rotate. The first friction block rotates and rubs against the second friction block on the U-shaped support block fixedly connected to the oxygen pipe.

[0009] Preferably, both front and rear ends of the inner wall of the U-shaped support block are provided with a slide groove, the interior of the slide groove is fixedly connected to a spring, the opposite side of the spring is fixedly connected to a moving block, and the surface of the moving block is fixedly connected to the second friction block.

[0010] As the first friction block and the second friction block continue to work, their surfaces are worn out. At this time, the spring pushes the corresponding moving blocks, and each group of moving blocks moves toward the first supporting block, so that the first friction block and the second friction block can always maintain a contact state.

[0011] Preferably, the lower end of the reaction chamber is fixedly connected to a water bucket, the center of the lower end of the reaction chamber is fixedly connected to the water bucket, the center of the inner wall of the water bucket is fixedly connected to an inverted U-shaped bucket, the bottom of the inner wall of the water bucket is fixedly connected to a leakage pipe, the upper end of the inverted U-shaped bucket is rotatably connected to a rotating rod, the lower end of the rotating rod extends to the inner side of the leakage pipe and is fixedly connected to a spiral blade, a leakage hole is opened at the lower end of the reaction chamber, and the upper end of the rotating rod extends to the lower end of the filter and is fixedly connected to a cleaning rod.

[0012] During the oxidation reaction, carbon dioxide and water are generated, and the water enters the water bucket through the leakage hole. Whenever the water level accumulates to the upper end of the leakage pipe, all the water inside the water bucket is discharged due to the pressure. At this time, the impact force of the water drives the spiral blades to rotate, the rotation of the spiral blades drives the rotating rod to rotate, and the rotation of the rotating rod drives the cleaning rod to rotate.

[0013] Preferably, a bearing is movably connected to the center of the rod wall of the rotating rod, a rotating drum is fixedly connected to the outside of the bearing, a rotating blade is fixedly connected to the outer wall of the rotating drum, a fixed block is fixedly connected to the outer wall of the rotating drum near the upper end, a first protrusion is fixedly connected to the upper edge of the fixed block, and a second protrusion is fixedly connected to the side of the lower end of the catalyst carrier plate near the rotating rod.

[0014] When oxygen is ejected from the first air leakage hole of the oxygen pipe, the gas pushes the rotating blade to move, and the movement of the rotating blade drives the rotating drum to rotate. Because the rotating drum and the rotating rod are movably connected by bearings, they do not interfere with each other. When the rotating drum rotates, it drives the fixed block to rotate, and the rotation of the fixed block drives the first protrusion to rotate. The first protrusion rotates and contacts with the second protrusion, so that the second protrusion moves upward, and the second protrusion moves the catalyst carrier plate upward, so that the catalyst carrier plate can be in a vibrating state.

[0015] Preferably, a semipermeable membrane is fixedly connected to the inner side of the water leakage hole.

[0016] When there is a water leak, some exhaust gas may not have been oxidized yet and may leak out of the water hole, which will cause pollution. The semi-permeable membrane design can discharge water while allowing air to be discharged only from the outlet pipe, which can effectively avoid exhaust gas leakage.

[0017] Preferably, a vent is provided on the left side of the water tub near the upper end.

[0018] It can be smoother when leaking, and will not cause smooth leakage due to reduced pressure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The rotating tube can be driven to rotate by introducing exhaust gas every day, and high temperature is generated by the friction between the first friction block and the second friction block, so that the oxidation reaction can be faster and the efficiency of purifying exhaust gas is improved;

[0021] 2. The generated water drives the rotating rod to rotate, and the water on the oxidant is shaken off to prevent the water from affecting the oxidation speed. At the same time, the filter can be cleaned, which improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 A cross-sectional view of the present invention from the front;

[0024] Figure 3 is a cross-sectional view of a top view of the present invention;

[0025] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0027] Figure 6 For the present invention Figure 2 The enlarged structural diagram at C in the middle;

[0028] Figure 7 It is a cross-sectional view of the rotating tube of the present invention.

[0029] In the figure: 1. reaction chamber; 2. exhaust pipe; 3. oxygen pipe; 4. load-bearing plate; 5. exhaust pipe; 6. filter screen; 7. first leakage hole; 8. rotating pipe; 9. second leakage hole; 10. first support block; 11. first friction block; 12. U-shaped support block; 13. second friction block; 14. slide groove; 15. spring; 16. moving block; 17. water bucket; 18. inverted U-shaped bucket; 19. leaking pipe; 20. rotating rod; 21. leakage hole; 22. spiral blade; 23. bearing; 24. rotating drum; 25. rotating blade; 26. fixed block; 27. first protrusion; 28. catalyst carrier; 29. ​​second protrusion; 30. semipermeable membrane; 31. vent; 32. supporting leg; 33. cleaning rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 7 , the present invention provides a technical solution:

[0032] A VOC waste gas treatment system, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7The figure shows a reaction chamber 1, wherein an exhaust pipe 2 is fixedly connected to the left side of the reaction chamber 1 near the front end, an oxygen pipe 3 is fixedly connected to the left side of the reaction chamber 1 near the rear end, a support leg 32 is fixedly connected to the bottom of the reaction chamber 1, a load-bearing plate 4 is fixedly connected to the left and right sides of the center of the inner wall of the reaction chamber 1, and the upper end of the load-bearing plate 4 is rotatably connected to the catalyst carrier plate 28 at one end near the inner wall of the reaction chamber 1, a filter screen 6 is fixedly connected to the inner wall of the reaction chamber 1 near the upper end, and an outlet is fixedly connected to the right side of the reaction chamber 1 near the upper end. The air pipe 5, the front end of the oxygen pipe 3 is provided with a first air leakage hole 7, the right side of the exhaust pipe 2 is rotatably connected with a rotating pipe 8, the surface of the rotating pipe 8 is provided with a second air leakage hole 9, the second air leakage hole 9 is inclined, the rear end of the rotating pipe 8 is fixedly connected with a first support block 10 near the left and right sides, the left and right sides of the first support block 10 are fixedly connected with a first friction block 11, the front end of the oxygen pipe 3 is fixedly connected with a U-shaped support block 12 near the left and right sides, and the inner side wall of the U-shaped support block 12 is movably connected with a second friction block 13;

[0033] When a catalyst is used for oxidation reaction, there are many factors that affect the reaction rate. Under the same catalyst environment, the higher the temperature, the faster the reaction rate;

[0034] During operation, the exhaust gas and oxygen are respectively introduced into the interior of the reaction chamber 1 through the exhaust pipe 2 and the oxygen pipe 3, and then the exhaust gas is oxidized by the catalyst on the catalyst carrier plate 28. After the reaction, the gas is filtered through the filter 6 for solid particles. When the gas enters the rotating pipe 8 from the exhaust pipe 2, because the second leakage hole 9 provided on the rotating pipe 8 is designed to be inclined, the rotating pipe 8 can be rotated. The rotation of the rotating pipe 8 drives the first support block 10 to rotate, and the rotation of the first support block 10 drives the first friction block 11 to rotate. The first friction block 11 rotates and rubs against the second friction block 13 on the U-shaped support block 12 fixedly connected to the oxygen pipe 3. In this way, heat is generated by friction, and the temperature of the rotating pipe 8 and the oxygen pipe is increased. In this way, the oxidation reaction rate of the exhaust gas can be accelerated, and the efficiency of exhaust gas purification is improved.

[0035] As an embodiment of the present invention, Figures 1 to 4 As shown, both front and rear ends of the inner side wall of the U-shaped support block 12 are provided with a slide groove 14, a spring 15 is fixedly connected inside the slide groove 14, a moving block 16 is fixedly connected to the opposite side of the spring 15, and a surface of the moving block 16 is fixedly connected to the second friction block 13;

[0036] During operation, as the first friction block 11 and the second friction block 13 continue to work, the surface of the friction block is worn out. At this time, the spring 15 pushes the corresponding moving block 16, and each group of moving blocks 16 moves toward the first support block 10. In this way, the first friction block 11 and the second friction block 13 can always maintain a contact state, which further improves the heating effect of the device. It is particularly noted that the elastic coefficient of the spring 15 is relatively large.

[0037] As an embodiment of the present invention, Figure 1 , Figure 2 and Figure 5 As shown, a water bucket 17 is fixedly connected to the center of the lower end of the reaction chamber 1, an inverted U-shaped bucket 18 is fixedly connected to the center of the inner wall of the water bucket 17, a water leakage pipe 19 is fixedly connected to the bottom of the inner wall of the water bucket 17, a rotating rod 20 is rotatably connected to the upper end of the inverted U-shaped bucket 18, the lower end of the rotating rod 20 extends to the inner side of the water leakage pipe 19 and is fixedly connected to a spiral blade 22, a water leakage hole 21 is opened at the lower end of the reaction chamber 1, the upper end of the rotating rod 20 extends to the lower end of the filter 6 and is fixedly connected to a cleaning rod 33, and a vent 31 is opened on the left side of the water bucket 17 near the upper end;

[0038] During operation, carbon dioxide and water are generated during the oxidation reaction, and the water enters the water tank 17 through the water leakage hole 21. Whenever the water level accumulates to the upper end of the water leakage pipe 19, the water at the upper end of the water leakage pipe 19 enters the water leakage pipe 19 and is discharged downward. The water inside the water leakage pipe 19 flows downward under the action of gravity. At this time, the air pressure inside the water tank 17 is the same as the air pressure. Due to the pressure, all the accumulated water inside the water tank 17 is discharged. It is particularly noted that this is similar to the siphon principle. At this time, the impact force of the water drives the spiral blade 22 to rotate, and the rotation of the spiral blade 22 drives the rotating rod 20 to rotate. The rotation of the rotating rod 20 drives the cleaning rod 33 to rotate. In this way, whenever the water accumulates to the mobile water level, the filter screen 6 is intermittently cleaned to avoid clogging of the filter screen 6 and affecting the filtering efficiency. The design of the vent 31 makes the water flow faster.

[0039] As an embodiment of the present invention, Figure 1 , Figure 2 and Figure 6 As shown, a bearing 23 is movably connected at the center of the rod wall of the rotating rod 20, a rotating drum 24 is fixedly connected to the outside of the bearing 23, a rotating blade 25 is fixedly connected to the outer wall of the rotating drum 24, a fixing block 26 is fixedly connected to the position of the outer wall of the rotating drum 24 near the upper end, a first protrusion 27 is fixedly connected to the upper edge of the fixing block 26, and a second protrusion 29 is fixedly connected to the lower end of the catalyst carrier plate 28 near the rotating rod 20;

[0040] During operation, when oxygen is ejected from the first air leakage hole 7 of the oxygen tube 3, the gas pushes the rotating blade 25 to move the rotating blade 25, and the movement of the rotating blade 25 drives the rotating drum 24 to rotate. Because the rotating drum 24 and the rotating rod 20 are movably connected by the bearing 23, they do not interfere with each other. When the rotating drum 24 rotates, it drives the fixed block 26 to rotate, and the rotation of the fixed block 26 drives the first protrusion 27 to rotate. The first protrusion 27 rotates and contacts with the second protrusion 29, so that the second protrusion 29 moves upward, and the second protrusion 29 moves the catalyst carrier plate 28 upward, so that the catalyst carrier plate 28 can be in a vibrating state, and the water attached to the catalyst can be shaken off, thereby avoiding the influence of the attached water on the oxidation reaction efficiency.

[0041] As an embodiment of the present invention, Figure 1 , Figure 2 and Figure 5 As shown, a semi-permeable membrane 30 is fixedly connected to the inner side of the water leakage hole 21;

[0042] During operation, when there is water leakage, some exhaust gas may not have been oxidized yet and may leak out of the water leakage hole 21, which will cause pollution. Through the design of the semipermeable membrane 30, water can be discharged while air can only be discharged from the exhaust pipe 5, which can effectively avoid the leakage of exhaust gas.

[0043] Working principle:

[0044] During operation, the exhaust gas and oxygen are respectively introduced into the interior of the reaction chamber 1 through the exhaust pipe 2 and the oxygen pipe 3, and then the exhaust gas is oxidized by the catalyst on the catalyst carrier plate 28. After the reaction, the gas is filtered through the filter 6 for solid particles. When the gas enters the rotating pipe 8 from the exhaust pipe 2, because the second leakage hole 9 provided on the rotating pipe 8 is designed to be inclined, the rotating pipe 8 can be rotated, and the rotation of the rotating pipe 8 drives the first support block 10 to rotate, and the rotation of the first support block 10 drives the first friction block 11 to rotate, and the first friction block 11 rotates and rubs against the second friction block 13 on the U-shaped support block 12 fixedly connected to the oxygen pipe 3, so that heat is generated by friction, and the temperature of the rotating pipe 8 and the oxygen pipe is increased, which can accelerate the oxygenation of the exhaust gas. The oxidation reaction rate is increased, and the efficiency of exhaust gas purification is improved. As the first friction block 11 and the second friction block 13 continue to work, the surface is worn out. At this time, the spring 15 pushes the corresponding moving block 16, and each group of moving blocks 16 moves toward the first support block 10, so that the first friction block 11 and the second friction block 13 can always maintain a contact state, which can further improve the heating effect of the device. During the oxidation reaction, carbon dioxide and water are generated, and the water enters the inside of the water tank 17 through the leakage hole 21. Whenever the water level accumulates to the upper end of the leakage pipe 19, the water at the upper end of the leakage pipe 19 enters the inside of the leakage pipe 19 and is discharged downward. The water inside the leakage pipe 19 flows downward under the action of gravity. At this time, in the water tank The air pressure inside the bucket 17 is the same as the air pressure. Due to the pressure, all the accumulated water inside the water bucket 17 is discharged. It is particularly noted that this is similar to the siphon principle. At this time, the impact force of the water drives the spiral blade 22 to rotate, and the rotation of the spiral blade 22 drives the rotating rod 20 to rotate, and the rotation of the rotating rod 20 drives the cleaning rod 33 to rotate. In this way, whenever the water accumulates to a moving water level, the filter screen 6 is intermittently cleaned to avoid clogging of the filter screen 6 and affecting the filtering efficiency. The design of the vent 31 makes the water flow faster. When oxygen is ejected from the first leakage hole 7 of the oxygen tube 3, the gas pushes the rotating blade 25 to move the rotating blade 25, and the movement of the rotating blade 25 drives the rotating drum 24 to rotate, because the rotating drum 24 and the rotating rod 20 rely on bearings. 23 are movably connected, so they do not interfere with each other. When the rotating drum 24 rotates, it drives the fixed block 26 to rotate. The rotation of the fixed block 26 drives the first protrusion 27 to rotate. The first protrusion 27 rotates and contacts with the second protrusion 29, so that the second protrusion 29 moves upward. The second protrusion 29 moves the catalyst carrier 28 upward, so that the catalyst carrier 28 can be in a vibrating state, and the water attached to the catalyst can be shaken off to avoid the influence of the attached water on the oxidation reaction efficiency. When leaking, some exhaust gas may not have been oxidized yet, and may be sent to the leakage hole 21 to leak, which will cause pollution. Through the design of the semipermeable membrane 30, water can be discharged while air can only be discharged from the outlet pipe 5, which can effectively avoid the leakage of exhaust gas.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A VOC waste gas treatment system, comprising a reaction chamber (1), characterized in that: An exhaust pipe (2) is fixedly connected to the left side of the reaction chamber (1) near the front end, an oxygen pipe (3) is fixedly connected to the left side of the reaction chamber (1) near the rear end, a support leg (32) is fixedly connected to the bottom of the reaction chamber (1), a load-bearing plate (4) is fixedly connected to the left and right sides of the center of the inner wall of the reaction chamber (1), an upper end of the load-bearing plate (4) near the inner wall of the reaction chamber (1) is rotatably connected to a catalyst carrier plate (28), a filter screen (6) is fixedly connected to the inner wall of the reaction chamber (1) near the upper end, an outlet pipe (5) is fixedly connected to the right side of the reaction chamber (1) near the upper end, and the The front end of the oxygen pipe (3) is provided with a first air leakage hole (7); the right side of the exhaust pipe (2) is rotatably connected to a rotating pipe (8); a second air leakage hole (9) is provided on the surface of the rotating pipe (8); the second air leakage hole (9) is designed to be inclined; the rear end of the rotating pipe (8) is fixedly connected to a first support block (10) near the left and right sides; the left and right sides of the first support block (10) are fixedly connected to a first friction block (11); the front end of the oxygen pipe (3) is fixedly connected to a U-shaped support block (12); the inner side wall of the U-shaped support block (12) is movably connected to a second friction block (13); The front and rear ends of the inner side wall of the U-shaped support block (12) are both provided with a slide groove (14), the interior of the slide groove (14) is fixedly connected to a spring (15), the opposite side of the spring (15) is fixedly connected to a moving block (16), and the surface of the moving block (16) is fixedly connected to the second friction block (13); A water bucket (17) is fixedly connected at the center of the lower end of the reaction chamber (1), an inverted U-shaped bucket (18) is fixedly connected at the center of the inner wall of the water bucket (17), a water leakage pipe (19) is fixedly connected to the bottom of the inner wall of the water bucket (17), a rotating rod (20) is rotatably connected to the upper end of the inverted U-shaped bucket (18), the lower end of the rotating rod (20) extends to the inner side of the water leakage pipe (19) and is fixedly connected to a spiral blade (22), a water leakage hole (21) is opened at the lower end of the reaction chamber (1), and the upper end of the rotating rod (20) extends to the lower end of the filter screen (6) and is fixedly connected to a cleaning rod (33).

2. A VOC waste gas treatment system according to claim 1, characterized in that: A bearing (23) is movably connected at the center of the rod wall of the rotating rod (20), a rotating drum (24) is fixedly connected to the outer side of the bearing (23), a rotating blade (25) is fixedly connected to the outer side wall of the rotating drum (24), a fixed block (26) is fixedly connected to the outer side wall of the rotating drum (24) near the upper end, a first protrusion (27) is fixedly connected to the upper edge of the fixed block (26), and a second protrusion (29) is fixedly connected to the lower end of the catalyst carrier plate (28) near the rotating rod (20).

3. A VOC waste gas treatment system according to claim 2, characterized in that: A semipermeable membrane (30) is fixedly connected to the inner side of the water leakage hole (21).

4. A VOC waste gas treatment system according to claim 3, characterized in that: A vent (31) is provided on the left side of the water storage tub (17) near the upper end.

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