Fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank, which comprises a treatment tank, a spraying pipe and an annular frame are arranged in an inner cavity of the treatment tank, and the section of the annular frame is in a U shape with a downward opening; the outer side of the driving gear is engaged with a transmission gear, the transmission gear drives the annular rotating plate to rotate, and circulating pipes fixedly connected with the annular frame are arranged on the upper side and the lower side of the transmission gear. The waste gas treatment device has the beneficial effects that a spraying pipe and an annular frame are arranged in the treatment tank, an annular rotating plate is rotationally mounted in the annular frame, a fan blade plate is fixed to the surface of the annular rotating plate, and when a driving gear rotates, a transmission gear and the annular rotating plate are driven to rotate, so that waste gas above the annular frame returns to the position below the annular frame again; and the rotating flow is kept under the influence of the rotation of the fan blade plates, so that the contact time between the waste gas and the vaporific spraying liquid is effectively prolonged, and the purification treatment effect on the waste gas is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and specifically to a fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank. Background Art

[0002] Exhaust gas is generated during manure fermentation. If directly discharged, it will pollute the environment and is not conducive to environmental protection.

[0003] Chinese Utility Model with the publication number CN215463235U discloses an exhaust gas treatment device for a manure fermentation tank, which improves the exhaust gas treatment effect by changing the way the exhaust gas enters the box body to make the exhaust gas fully contact with the spray liquid.

[0004] Currently, the flow path of the exhaust gas inside the treatment device is short, and the contact time between the exhaust gas and the spray liquid is limited, making it difficult to obtain sufficient purification treatment. For this reason, the present invention proposes a fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank to solve the problems of limited contact time between the exhaust gas and the spray liquid and poor purification effect as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank, comprising:

[0007] A treatment tank, inside the cavity of which a spray pipe and an annular frame are provided. The cross-section of the annular frame is in a "C" shape with the opening facing downwards. An annular rotating plate is rotatably installed inside the annular frame, and fan blades are fixed on the surface of the annular rotating plate.

[0008] A driving gear, which is rotatably installed at the center of the annular frame. A transmission gear is meshed on the outside of the driving gear, and the transmission gear drives the annular rotating plate to rotate. On both the upper and lower sides of the transmission gear, circulation pipes fixedly connected to the annular frame are provided. A hollow pipe is fixedly penetrated through the middle of the transmission gear, and the upper and lower ends of the hollow pipe are respectively rotatably connected to the two circulation pipes. A spiral blade is fixedly arranged on the inner wall of the hollow pipe.

[0009] Preferably, a plurality of the fan blades are provided and are distributed in a circular array around the surface of the annular rotating plate. The fan blades are arranged in a straight plate structure.

[0010] Preferably, a plurality of the transmission gears are provided and are distributed in a circular array around the driving gear. The circulation pipes are arranged in an "L" shape, and the opening ends face the same direction as the radial direction of the annular frame.

[0011] Preferably, protective baffles are arranged on both the upper and lower sides of the driving gear. The protective baffles are fixedly connected to the annular frame and seal the middle cavity of the annular frame. The circulating pipe is fixedly and penetratingly connected to the protective baffle.

[0012] Preferably, a driving main shaft is fixedly and penetratingly arranged in the middle of the driving gear. The bottom of the treatment tank is recessed inward to form a boss. A driving motor is fixedly installed in the inner cavity of the boss. The output end of the driving motor extends into the inner cavity of the treatment tank and is fixedly connected to the driving main shaft.

[0013] Preferably, a ring-shaped collecting groove is formed on the upper surface of the annular frame. A plurality of through holes are formed in an annular array on the bottom of the collecting groove. Each group of through holes has a plurality of holes and is evenly distributed.

[0014] Preferably, an annular sealing plate is fixedly arranged on the inner side wall of the annular frame close to the center of the circle. The cross section of the annular rotating plate is in a "C" shape. There are two annular sealing plates, which are respectively attached to the inner walls of the upper and lower sides of the annular rotating plate. An annular sealing gasket is arranged at the joint where the annular sealing plate is attached to the annular rotating plate.

[0015] Preferably, an internal gear ring is fixedly arranged on the vertical inner wall of the annular rotating plate. An avoidance slot hole corresponding to the transmission gear is formed in the inner side wall of the annular frame close to the center of the circle. One side of the transmission gear passes through the avoidance slot hole and meshes with the internal gear ring for transmission.

[0016] Preferably, a circulating liquid pipe, an exhaust gas inlet pipe and an exhaust gas outlet pipe are arranged outside the treatment tank. The lower end of the circulating liquid pipe extends into the inner cavity at the lower end of the treatment tank and is communicated with a circulating pump at the bottom of the treatment tank. The upper end of the circulating liquid pipe extends into the middle inner cavity of the treatment tank and is communicated with a spray pipe.

[0017] Preferably, a plurality of spray pipes and annular frames are arranged, and are evenly spaced in the vertical direction in the inner cavity of the treatment tank. A plurality of atomizing nozzles are installed on the surface of the spray pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The present invention provides a spray pipe and an annular frame inside the treatment tank, an annular rotating plate is rotatably installed inside the annular frame, and a fan blade plate is fixed on the surface of the annular rotating plate, a driving gear is rotatably installed at the center of the annular frame, a transmission gear is meshed and driven on the outer side of the driving gear, the transmission gear is rotatably installed between the upper and lower circulation pipes, a spiral blade is arranged inside the transmission gear, an inner gear ring is fixed on the inner wall of the annular rotating plate and meshes with the transmission gear, and when the driving gear rotates, the transmission gear and the annular rotating plate are driven to rotate, so that the exhaust gas above the annular frame returns to the bottom of the annular frame and is kept rotating under the influence of the rotation of the fan blade plate, thereby effectively increasing the contact time between the exhaust gas and the mist spray liquid and improving the purification treatment effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the treatment tank of the present invention;

[0022] Figure 3 A half-section schematic diagram of the annular frame structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the transmission gear of the present invention;

[0024] Figure 5 It is a partially cutaway schematic diagram of the annular frame structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 7 It is a partial cutaway schematic diagram of the annular frame structure in the second embodiment of the present invention;

[0027] Figure 8 It is a three-dimensional schematic diagram of the multi-layer ring plate structure in the second embodiment of the present invention;

[0028] Fig. 9 It is a three-dimensional schematic diagram of the circulation pipe structure in the second embodiment of the present invention.

[0029] In the figure: 1. treatment tank; 11. circulating liquid pipe; 12. exhaust gas inlet pipe; 13. exhaust gas outlet pipe; 2. spray pipe; 3. annular frame; 31. collecting tank; 311. through hole; 32. protective baffle; 33. annular sealing plate; 34. multi-layer ring plate; 35. through groove; 4. annular rotating plate; 41. fan blade plate; 42. inner gear ring; 5. driving gear; 6. transmission gear; 61. hollow pipe; 62. spiral blade; 7. circulating pipe; 8. driving spindle; 9. boss; 10. driving motor. DETAILED DESCRIPTION

[0030] In order to clearly and completely describe the objectives, technical solutions of the present invention, and make the advantages more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] Please refer to Figures 1 to 9 , the present invention provides a technical solution:

[0032] Embodiment 1, as Figure 1-6 shown, a fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank, comprising: a treatment tank 1 and a driving gear 5.

[0033] Specifically, a spray pipe 2 and an annular frame 3 are arranged in the inner cavity of the treatment tank 1. The spray pipe 2 is used to spray a spray liquid with an adsorption and purification effect on the waste gas into the inner cavity of the treatment tank 1, and the spray liquid sprayed by the spray pipe 2 is in a mist state and fills the entire inner cavity of the treatment tank 1. The cross-section of the annular frame 3 is in a "C" shape with an opening downward. An annular collecting groove 31 is formed on the upper surface of the annular frame 3. A plurality of through holes 311 distributed in an annular array are formed through the bottom of the collecting groove 31. Each group of through holes 311 has a plurality of them and is evenly distributed. As Figure 3 shown, the waste gas on the upper and lower sides of the annular frame 3 can pass through the through holes 311 and flow upward from bottom to top. An annular rotating plate 4 is rotatably installed in the inner cavity of the annular frame 3, and a fan blade plate 41 is fixed on the surface of the annular rotating plate 4. As Figure 3 shown, when the annular rotating plate 4 rotates, the fan blade plate 41 rotates accordingly and drives the gas in the inner cavity of the annular frame 3 to rotate and flow, thereby increasing the contact time between the waste gas on the lower side of the annular frame 3 and the mist-like spray liquid, as well as the flow path of the waste gas, so as to improve the purification effect of the spray liquid on the waste gas;

[0034] Secondly, the driving gear 5 is rotatably installed at the center of the annular frame 3. A transmission gear 6 is meshed on the outside of the driving gear 5. The transmission gear 6 drives the annular rotating plate 4 to rotate. When the driving gear 5 rotates, it can drive the annular rotating plate 4 to rotate through the transmission of the transmission gear 6. Circulation pipes 7 fixedly connected to the annular frame 3 are arranged on both the upper and lower sides of the transmission gear 6. A hollow pipe 61 is fixedly penetrated through the middle of the transmission gear 6, and the upper and lower ends of the hollow pipe 61 are respectively rotatably connected to the two circulation pipes 7. As Figure 4As shown, the transmission gear 6 can rotate between the upper and lower circulation pipes 7, and the inner wall of the hollow tube 61 is fixedly provided with a spiral blade 62. When the transmission gear 6 rotates, the spiral blade 62 can drive the gas in the circulation pipe 7 and the inner cavity of the hollow tube 61 to flow, thereby sucking the exhaust gas above the annular frame 3 into the inner cavity of the hollow tube 61 and re-discharging it to the bottom of the annular frame 3. It should be noted that the overall flow direction of the exhaust gas in the inner cavity of the treatment tank 1 is from bottom to top, and the exhaust gas around the annular frame 3 can circulate to a certain extent in the area around the annular frame 3, and will also rotate in the horizontal direction during the circulation process, thereby effectively increasing the contact time between the exhaust gas and the mist spray liquid, and improving the treatment effect of the exhaust gas.

[0035] In order to ensure that the exhaust gas and the mist spray liquid can rotate and flow in the inner cavity of the annular frame 3, the fan blade plates 41 of the present application are provided with multiple, and are distributed in a circular array around the surface of the annular rotating plate 4, ensuring that the gas (and the mist spray liquid) in the inner cavity of the annular frame 3 can form a stable circulation flow, and the fan blade plates 41 are arranged in a straight plate structure to avoid affecting the flow of the gas in the vertical direction.

[0036] In order to ensure the circulation of gas on the upper and lower sides of the annular frame 3, the transmission gears 6 of the present application are provided with multiple transmission gears 6, which are distributed in an annular array around the driving gear 5 to ensure that the weight distribution of the overall structure is uniform and stable, and multiple transmission gears 6 jointly drive the annular rotating plate 4 to rotate, which can improve the stability of the annular rotating plate 4 when rotating. Secondly, the circulation pipe 7 is set in an "L" shape, and the opening end is facing the radial direction of the annular frame 3, such as Figure 3 As shown, the circulation pipe 7 located on the upper side of the annular frame 3 can promptly absorb the exhaust gas above the annular frame 3 into the inner cavity of the hollow pipe 61, and smoothly discharge it to the bottom of the annular frame 3 for circulation.

[0037] In order to protect the driving gear 5, the present application also has protective baffles 32 on the upper and lower sides of the driving gear 5. The protective baffles 32 are fixedly connected to the annular frame 3 and seal the middle cavity of the annular frame 3. The circulation pipe 7 is fixedly connected with the protective baffle 32. The setting of the protective baffle 32 can, on the one hand, fix the circulation pipe 7, and on the other hand, can also seal and protect the driving gear 5 and the transmission gear 6 to prevent the spray liquid from entering the middle of the annular frame 3 and causing oxidation corrosion of the driving gear 5 and the transmission gear 6, affecting the meshing transmission between the two.

[0038] In order to drive the transmission gear 6 and the annular rotating plate 4 to rotate, the present application also has a driving main shaft 8 fixedly arranged in the middle of the driving gear 5, such as Figure 3As shown, the upper and lower ends of the driving main shaft 8 are respectively and movably and penetratingly connected to two protective baffles 32, and a rotating seal known in the prior art is also provided at the fitting connection between the driving main shaft 8 and the protective baffle 32, which will not be elaborated here. The bottom of the treatment tank 1 is recessed inward to form a boss 9, and a driving motor 10 is fixedly installed in the inner cavity of the boss 9. The output end of the driving motor 10 extends into the inner cavity of the treatment tank 1 and is fixedly connected to the driving main shaft 8. Similarly, a rotating seal known in the prior art is provided between the output shaft of the driving motor 10 and the boss 9. When the driving motor 10 operates, the driving motor 10 can drive the driving main shaft 8 and the driving gear 5 to rotate, so as to drive the annular rotating plate 4 to rotate through the transmission of the transmission gear 6.

[0039] In order to position and support the annular rotating plate 4, the present application also has an annular sealing plate 33 fixedly provided on the inner side wall of the annular frame 3 close to the center of the circle. The cross section of the annular rotating plate 4 is set in a "C" shape. There are two annular sealing plates 33, which are respectively attached to the upper and lower inner walls of the annular rotating plate 4. As Figure 5 and Figure 6 shown, the annular sealing plate 33 is provided to support the annular rotating plate 4, ensuring that the annular rotating plate 4 can only rotate and will not shift in the vertical direction. An annular sealing gasket is provided at the fitting connection between the annular sealing plate 33 and the annular rotating plate 4 to improve the sealing performance between the two and prevent the mist-like spraying liquid from entering the inner cavity of the annular rotating plate 4.

[0040] In order to drive the annular rotating plate 4 to rotate, the present application also has an internal gear ring 42 fixedly provided on the vertical inner wall of the annular rotating plate 4. An avoidance slot corresponding to the transmission gear 6 is penetrated and opened on the inner side wall of the annular frame 3 close to the center of the circle. One side of the transmission gear 6 passes through the avoidance slot and meshes with the internal gear ring 42 for transmission. As Figure 5 and Figure 6 shown, the transmission gear 6 can pass through the inner side wall of the annular frame 3 and drive the internal gear ring 42, so as to realize the rotation of the annular rotating plate 4.

[0041] In order to ensure the circulation of the spraying liquid, the present application also has a circulating liquid pipe 11, an exhaust gas inlet pipe 12 and an exhaust gas outlet pipe 13 provided on the outside of the treatment tank 1. As Figure 1 shown, the exhaust gas inlet pipe 12 is communicated with the bottom of the treatment tank 1 for conveying exhaust gas into the inner cavity of the treatment tank 1. The exhaust gas first contacts the spraying liquid accumulated at the bottom of the treatment tank 1, and the liquid initially purifies the exhaust gas. Then the exhaust gas rises, and the spraying liquid sprayed by the spraying pipe 2 purifies the exhaust gas until the exhaust gas is finally discharged from the exhaust gas outlet pipe 13. The lower end of the circulating liquid pipe 11 extends into the lower inner cavity of the treatment tank 1 and is communicated with the circulating pump at the bottom of the treatment tank 1. The upper end of the circulating liquid pipe 11 extends into the middle inner cavity of the treatment tank 1 and is communicated with the spraying pipe 2. The circulating liquid pipe 11 realizes the circulation of the spraying liquid in the inner cavity of the treatment tank 1.

[0042] In order to improve the treatment effect of the exhaust gas, the spray pipe 2 and the annular frame 3 of the present application are provided with multiple, and are evenly spaced in the vertical direction of the inner cavity of the treatment tank 1. The surface of the spray pipe 2 is equipped with multiple atomizing nozzles, such as Figure 2 As shown, the exhaust gas can circulate multiple times around the multiple annular frames 3 in the inner cavity of the treatment tank 1, thereby extending the flow path of the exhaust gas to the greatest extent and improving the purification effect of the exhaust gas. In addition, according to actual use requirements, the atomizing nozzle of the device can be set to spray downward, can also be set to spray upward, or a combination of the two, spraying upward and downward at the same time, to ensure that there is always a mist spray liquid in the inner cavity of the annular frame 3 to purify the exhaust gas.

[0043] Embodiment 2, as Figure 7-9 As shown, the present application also has a multi-layer ring plate 34 arranged in the inner cavity of the annular frame 3, and the multi-layer ring plate 34 is fixedly mounted on the inner side wall of the annular frame 3 away from the center of the circle. The multi-layer ring plate 34 and the bottom of the collecting groove 31 are both provided with through grooves 35, and the two groups of through grooves 35 adjacent to each other are staggered and arranged obliquely. When the exhaust gas flows in the inner cavity of the annular frame 3, each time it passes through the through grooves 35 on a layer of the multi-layer ring plate 34, it needs to flow a certain distance in the horizontal direction before it can pass through the through grooves 35 on the next layer of the multi-layer ring plate 34. Therefore, the flow path of the exhaust gas is longer, and a sufficiently long contact time is left between the exhaust gas and the mist spray liquid.

[0044] Secondly, if Fig. 9 As shown, the circulation pipes 7 on the upper and lower sides of the transmission gear 6 are arranged crosswise with each other, and the two circulation pipes 7 are inclined with the radial direction of the annular frame 3. When the circulation pipe 7 on the upper side of the transmission gear 6 extracts the exhaust gas above the annular frame 3, the exhaust gas above the annular frame 3 can form a rotating flow. When the circulation pipe 7 on the lower side of the transmission gear 6 discharges the exhaust gas to the bottom of the annular frame 3, the exhaust gas below the annular frame 3 can also form a rotating flow. The flow directions of the exhaust gas on the upper and lower sides of the annular frame 3 are consistent and consistent with the inclination direction of the through groove 35, thereby ensuring that even if the annular rotating plate 4 and the transmission gear 6 rotate slowly, the exhaust gas can still rotate and flow on the upper and lower sides of the annular frame 3 to extend its own flow path.

[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 fermentation waste gas treatment device for a livestock and poultry manure treatment fermentation tank, characterized in that: Comprising: A processing tank (1), inside the cavity of the processing tank (1) there is arranged a spray pipe (2) and an annular frame (3), the cross-section of the annular frame (3) is in a "C" shape with the opening facing downwards, inside the cavity of the annular frame (3) there is rotatably installed an annular rotating plate (4), and on the surface of the annular rotating plate (4) there is fixed a fan blade plate (41); A driving gear (5), the driving gear (5) is rotatably installed at the center of the annular frame (3), on the outer side of the driving gear (5) there is engaged a transmission gear (6), the transmission gear (6) drives the annular rotating plate (4) to rotate, on both the upper and lower sides of the transmission gear (6) there are arranged circulation pipes (7) fixedly connected to the annular frame (3), in the middle of the transmission gear (6) there is fixedly penetrated a hollow pipe (61), and the upper and lower ends of the hollow pipe (61) are respectively rotatably connected to the two circulation pipes (7), on the inner wall of the hollow pipe (61) there is fixedly arranged a spiral blade (62).

2. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 1, characterized in that: There are multiple fan blade plates (41), and they are distributed in a circular array around the surface of the annular rotating plate (4), and the fan blade plates (41) are arranged in a straight plate structure.

3. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 1, characterized in that: There are multiple transmission gears (6), and they are distributed in a circular array around the driving gear (5), the circulation pipes (7) are arranged in an "L" shape, and the opening ends face in the same direction as the radial direction of the annular frame (3).

4. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 1, characterized in that: On both the upper and lower sides of the driving gear (5) there are arranged protective baffles (32), the protective baffles (32) are fixedly connected to the annular frame (3) and seal the middle cavity of the annular frame (3), and the circulation pipes (7) are fixedly penetrated and connected to the protective baffles (32).

5. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 4, characterized in that: In the middle of the driving gear (5) there is fixedly penetrated a driving main shaft (8), the bottom of the processing tank (1) is recessed inwards to form a boss (9), inside the cavity of the boss (9) there is fixedly installed a driving motor (10), and the output end of the driving motor (10) extends into the cavity of the processing tank (1) and is fixedly connected to the driving main shaft (8).

6. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 4, characterized in that: On the upper surface of the annular frame (3) there is opened a circular collecting groove (31), at the bottom of the collecting groove (31) there are penetrated multiple groups of through holes (311) distributed in a circular array, each group of through holes (311) has multiple and is evenly dispersed.

7. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 1, characterized in that: On the inner side wall of the annular frame (3) close to the center there is fixedly arranged an annular sealing plate (33), the cross-section of the annular rotating plate (4) is in a "C" shape, there are two annular sealing plates (33), and they respectively fit the inner walls on the upper and lower sides of the annular rotating plate (4), and at the fitting connection between the annular sealing plate (33) and the annular rotating plate (4) there is an annular sealing gasket.

8. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 7, characterized in that: On the vertical inner wall of the annular rotating plate (4) there is fixedly arranged an internal gear ring (42), on the inner side wall of the annular frame (3) close to the center there is penetrated an avoidance slot hole corresponding to the transmission gear (6), and one side of the transmission gear (6) passes through the avoidance slot hole and meshes with the internal gear ring (42) for transmission.

9. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 1, characterized in that: A circulating liquid pipe (11), an exhaust gas inlet pipe (12) and an exhaust gas outlet pipe (13) are arranged on the outside of the treatment tank (1); the lower end of the circulating liquid pipe (11) extends into the inner cavity at the lower end of the treatment tank (1) and is connected to a circulating pump at the bottom of the treatment tank (1); the upper end of the circulating liquid pipe (11) extends into the inner cavity in the middle of the treatment tank (1) and is connected to a spray pipe (2).

10. The fermentation waste gas treatment device for livestock and poultry manure treatment fermentation tank according to claim 1, characterized in that: The spray pipe (2) and the annular frame (3) are both provided in plurality and are distributed at equal intervals in the vertical direction of the inner cavity of the treatment tank (1); and a plurality of atomizing nozzles are installed on the surface of the spray pipe (2).

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