An anaerobic sewage treatment system

Abstract

The present invention discloses an anaerobic sewage treatment system, which relates to the technical field of anaerobic sewage treatment, comprising a support frame, an anaerobic tank for storing anaerobic water being fixedly connected to the upper side of the support frame, a ladder being fixedly connected to the outer side of the anaerobic tank, a gas tank for storing gas being fixedly connected to the upper side of the anaerobic tank, a water supply mechanism for transmitting anaerobic water to the interior of the anaerobic tank being further provided on the outer side of the anaerobic tank, a three-phase separator for separating anaerobic water into solid, liquid and gas and transmitting them in sequence being fixedly connected to the upper part of the interior of the anaerobic tank, the water supply mechanism being provided so that a steady stream of anaerobic water is sprayed out from the inside of a water spray pipe, thereby continuously pushing sludge particles accumulated below the anaerobic tank upward, thereby enabling anaerobic microorganisms to decompose organic matter above the anaerobic water, thereby improving the decomposition efficiency of the organic matter.

Description

Technical Field

[0001] The invention relates to the technical field of anaerobic sewage treatment, in particular to an anaerobic sewage treatment system. Background Art

[0002] Anaerobic wastewater treatment technology is a biological treatment method that uses anaerobic microorganisms to decompose organic matter in wastewater under anaerobic conditions and convert it into useful substances such as biogas. This technology has the advantages of efficient removal of organic pollutants, low energy consumption, small and stable residual sludge volume, and good dehydration performance. It is suitable for treating various organic wastewaters, especially high-concentration organic wastewater.

[0003] Among them, UASB (upflow anaerobic sludge blanket) reactors are widely used in anaerobic sewage treatment technology. UASB reactors introduce sewage from bottom to top into the bottom of the reactor, allowing the sewage to fully contact with high-concentration anaerobic granular sludge. Under the action of anaerobic microorganisms, the organic matter in the sewage is decomposed into biogas (mainly methane and carbon dioxide) and inorganic matter. The three-phase separator at the top of the reactor separates the generated biogas, sludge and treated water. The biogas is collected and utilized, the sludge is returned to the reactor, and the treated water is discharged from the system.

[0004] Although the UASB reactor is an anaerobic environment, there may be differences in local dissolved oxygen content. The presence of dissolved oxygen will inhibit the growth of some anaerobic microorganisms, but may have little effect on facultative anaerobic microorganisms. If the dissolved oxygen content in the left and right areas inside the anaerobic tank is different, it will lead to differences in the types and numbers of microorganisms. The difference in the number of microorganisms will lead to uneven wastewater treatment effects inside the reactor. In areas with a large number of microorganisms, the decomposition and conversion efficiency of organic matter is high, while in areas with a small number of microorganisms, the treatment capacity is insufficient, resulting in a decrease in overall treatment efficiency.

[0005] Therefore, it is necessary to design an anaerobic sewage treatment system with uniform distribution of anaerobic microorganisms and high efficiency in degrading organic matter. Summary of the Invention

[0006] The object of the present invention is to provide an anaerobic sewage treatment system to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an anaerobic sewage treatment system, comprising a support frame, an anaerobic tank for storing anaerobic water is fixedly connected to the upper side of the support frame, a ladder is fixedly connected to the outer side of the anaerobic tank, a gas tank for storing gas is fixedly connected to the upper side of the anaerobic tank, a water supply mechanism for transmitting anaerobic water to the interior of the anaerobic tank is also provided on the outer side of the anaerobic tank, a three-phase separator for separating anaerobic water into solid, liquid and gas and transmitting them in sequence is fixedly connected to the upper part of the interior of the anaerobic tank, a stirring mechanism for stirring sludge particles in the anaerobic water and driving the sludge particles to move up and down according to the number of sludge particles in the upper and lower areas of the anaerobic tank is provided on the lower side of the three-phase separator, a regional detection mechanism for detecting the concentration of sludge particles in the upper and lower areas of the anaerobic tank is provided on one side of the stirring mechanism, and a transmission mechanism for driving the regional detection mechanism and the stirring mechanism to move is provided on the lower side of the stirring mechanism.

[0008] According to the above technical solution, the water supply mechanism includes a second water supply pipe and several water spray pipes arranged below the transmission mechanism, and the several water spray pipes are combined into a circle for anaerobic water spraying. A second water pump is provided on the lower side of the anaerobic tank, and the output end of the second water pump is connected to the water spray pipe. The input end of the second water pump is fixedly connected to the third water supply pipe, the other end of the third water supply pipe is fixedly connected to a three-way valve, the other end of the three-way valve is fixedly connected to a second water stop valve, the upper end of the three-way valve is fixedly connected to the first water stop valve, the second water supply pipe is fixedly connected to the other end of the first water stop valve, the outside of the anaerobic tank is fixedly connected to the first water pump, the output end of the first water pump is fixedly connected to the other end of the second water supply pipe, the input end of the first water pump is fixedly connected to the first water supply pipe, and the other end of the first water supply pipe passes through the anaerobic tank and is fixedly connected to the anaerobic tank.

[0009] According to the above technical solution, the transmission mechanism includes a water stop block fixedly connected to the inside of the second water supply pipe, the inside of the second water supply pipe is rotatably connected to a transmission shaft, and the outside of the transmission shaft is evenly fixedly connected to a plurality of arc pieces, and the arc pieces are engaged with the water stop block when driven to rotate by the transmission shaft, one end of the transmission shaft passes through the second water supply pipe and is fixedly connected to the first rotating shaft, the other end of the first rotating shaft is provided with a first fixed cylinder, the outside of the first fixed cylinder is fixedly connected to a plurality of connecting rods and the connecting rods are fixedly connected to the inner wall of the anaerobic tank, the inside of the first fixed cylinder is respectively connected to the first bevel gear, the second bevel gear is respectively meshed with the first bevel gear and the third bevel gear, the other end of the first rotating shaft is fixedly connected to the first bevel gear, the other end of the second bevel gear is fixedly connected to the second rotating shaft, and the other end of the third bevel gear is fixedly connected to the third rotating shaft.

[0010] According to the above technical solution, the stirring mechanism includes a second fixed cylinder fixedly connected to the other end of the second rotating shaft, the interior of the second fixed cylinder is fixedly connected to a power box, the upper side of the power box is fixedly connected to a motor, the internal uniform bearing of the motor is connected to four fourth bevel gears, the other end of each of the fourth bevel gears is fixedly connected to a fan blade, each of the fourth bevel gears is meshed with each other, the upper sides of the four fourth bevel gears are meshed with a fifth bevel gear, and the other end of the fifth bevel gear passes through the upper wall of the power box and is fixedly connected to the output end of the motor.

[0011] According to the above technical solution, the area detection mechanism includes a second connecting rod fixedly connected to the other end of the third rotating shaft, the other end of the second connecting rod is hinged to the first connecting rod, one side of the first connecting rod is provided with a guide slide and the guide slide is fixedly connected to the inner wall of the anaerobic tank, the other end of the first connecting rod is hinged to a slider, one side of the slider is fixedly connected to a sludge concentration sensor, a slide groove is provided inside the guide slide, and the slider is slidably connected to the slide groove.

[0012] According to the above technical solution, a number of first gear columns are evenly arranged inside the slide groove, and two seventh bevel gears and a sixth bevel gear are respectively connected to the bearings inside the slider. The other ends of the two seventh bevel gears are respectively fixedly connected to the upper fan and the lower fan, and the other end of the sixth bevel gear is fixedly connected to the column gear, which is meshed with the first gear column.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By providing a water delivery mechanism, a steady stream of anaerobic water is sprayed out from the inside of the water spray pipe, thereby continuously pushing the sludge particles accumulated below the anaerobic tank upward, thereby allowing anaerobic microorganisms to decompose organic matter above the anaerobic water, thereby improving the decomposition efficiency of organic matter.

[0014] 2. The first rotating shaft is driven to rotate by the anaerobic water circulation. When the first rotating shaft rotates, it can not only drive the fan blades to rotate with the second fixed cylinder as the axis to evenly stir the sludge particles, but also drive the sludge concentration sensor to move up and down, and detect the sludge particle concentration above and below the anaerobic water inside the anaerobic tank in real time. When the sludge particle concentration above the anaerobic water is greater than or less than that below, the motor controls the fan blades to rotate, so that the fan blades become reverse blades or normal blades respectively, driving the sludge particles above and above the anaerobic water inside the anaerobic tank to move downward or upward respectively, so that the sludge particle concentration above and above the anaerobic water inside the anaerobic tank is always kept relatively balanced, thereby achieving the effect of uniform decomposition of organic matter by microorganisms and high efficiency of decomposition of organic matter.

[0015] 3. The upper and lower fans are driven by the column gear and the sixth bevel gear to rotate, generating thrust. As the slider moves up and down, the sludge particles above or below the slider are pushed, so that most of the sludge particles are pushed out of the chute, effectively preventing most of the particles from entering the guide bar, causing the slider to squeeze the sludge particles when moving up and down, causing mechanical damage to the microorganisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of an anaerobic sewage treatment system of the present invention;

[0018] Figure 2 It is a structural diagram of the water delivery mechanism in the present invention;

[0019] Figure 3 Schematic diagram of the structure inside the anaerobic tank of the present invention;

[0020] Figure 4 For the present invention Figure 3 An enlarged schematic diagram of area A;

[0021] Figure 5 Schematic diagram of the structure of the transmission mechanism of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the stirring mechanism of the present invention;

[0023] Figure 7 Schematic diagram of the internal structure of the power box in the present invention;

[0024] Figure 8 Schematic diagram of the structure of the regional detection mechanism in the present invention;

[0025] Figure 9 Schematic diagram of the internal structure of the guide slide in the present invention;

[0026] Figure 10 For the present invention Figure 9 An enlarged schematic diagram of region B;

[0027] Figure 11 Schematic diagram of the motion state of the area detection mechanism in the present invention;

[0028] Figure 12 Schematic diagram of the swing angle of the fan blade of the stirring mechanism in the present invention;

[0029] In the picture: 1. Anaerobic tank; 2. Gas storage tank;

[0030] 3. Water supply mechanism; 31. First water supply pipe; 32. First water pump; 33. Second water supply pipe; 34. First water stop valve; 35. Second water stop valve; 36. Three-way valve; 37. Second water pump; 38. Third water supply pipe; 39. Water spray pipe;

[0031] 4. Ladder; 5. Support frame;

[0032] 6. Transmission mechanism; 61. Water retaining block; 62. Arc plate; 63. First fixed cylinder; 64. First rotating shaft; 65. First bevel gear; 66. Second rotating shaft; 67. Second bevel gear; 68. Third rotating shaft; 69. Third bevel gear;

[0033] 7. Area detection mechanism; 71. Slider; 711. Column gear; 712. Sixth bevel gear; 713. First column gear; 714. Upper fan; 715. Seventh bevel gear; 716. Lower fan; 72. Guide bar; 73. Sludge concentration sensor; 74. First connecting rod; 75. Second connecting rod;

[0034] 8. Stirring mechanism; 81. Second fixed cylinder; 82. Fan blades; 83. Motor; 84. Power box; 85. Fourth bevel gear; 86. Fifth bevel gear;

[0035] 9. Three-phase separator. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] See also Figure 1-12The present invention provides a technical solution: an anaerobic sewage treatment system, comprising a support frame 5, an anaerobic tank 1 for storing anaerobic water is fixedly connected to the upper side of the support frame 5, a ladder 4 is fixedly connected to the outside of the anaerobic tank 1, a gas tank 2 for storing gas is fixedly connected to the upper side of the anaerobic tank 1, a water supply mechanism 3 for transmitting anaerobic water to the inside of the anaerobic tank 1 is also provided on the outside of the anaerobic tank 1, a three-phase separator 9 for separating anaerobic water into solid, liquid and gas and transmitting them in sequence is fixedly connected to the upper part of the interior of the anaerobic tank 1, a stirring mechanism 8 for stirring sludge particles inside the anaerobic water and driving the sludge particles to move up and down according to the number of sludge particles in the upper and lower areas of the anaerobic tank 1 is provided on the lower side of the three-phase separator 9, a regional detection mechanism 7 for detecting the concentration of sludge particles in the upper and lower areas of the anaerobic tank 1 is provided on one side of the stirring mechanism 8, and a transmission mechanism 6 for driving the regional detection mechanism 7 and the stirring mechanism 8 to move is provided on the lower side of the stirring mechanism 8.

[0038] See also Figure 2 The water supply mechanism 3 includes a second water supply pipe 33 and a plurality of water spray pipes 39 provided below the transmission mechanism 6. The plurality of water spray pipes 39 are combined into a circular shape for anaerobic water spraying. A second water pump 37 is provided on the lower side of the anaerobic tank 1. The output end of the second water pump 37 is connected to the water spray pipe 39. The input end of the second water pump 37 is fixedly connected to a third water supply pipe 38. The other end of the third water supply pipe 38 is fixedly connected to a three-way valve 36. The other end of the three-way valve 36 is fixedly connected to a second water stop valve 35. The upper end of the three-way valve 36 is fixedly connected to the first water stop valve 34. The second water supply pipe 33 is fixedly connected to the other end of the first water stop valve 34. The outside of the anaerobic tank 1 is fixedly connected to a first water pump 32. The output end of the first water pump 32 is fixedly connected to the other end of the second water supply pipe 33. The input end of the first water pump 32 is fixedly connected to the first water supply pipe 31. The other end of the first water supply pipe 31 passes through the anaerobic tank 1 and is fixedly connected to the anaerobic tank 1.

[0039] Specifically, the second water pump 37 is used to pump new anaerobic water into the interior of the anaerobic tank 1, and the first water pump 32 is used to pump the anaerobic water above the anaerobic tank 1 to the bottom of the anaerobic tank 1, thereby performing anaerobic water circulation. The water spray pipe 39 is used to spray the anaerobic water from bottom to top, thereby indirectly driving the sludge particles sunk below the anaerobic tank 1 to move upward.

[0040] When new anaerobic water needs to be added into the anaerobic tank 1, the second water stop valve 35 is opened, the first water stop valve 34 is closed, and the second water pump 37 is started. The anaerobic water passes through the third water supply pipe 38 and is sprayed out from the inside of the water spray pipe 39. When the water spray pipe 39 is combined into a circular shape for spraying, the anaerobic water sprayed upward is more uniform, thereby causing the sludge particles below the anaerobic tank 1 to move evenly upward.

[0041] When anaerobic water circulation is required, the second water stop valve 35 is closed, the first water stop valve 34 is opened, and the first water pump 32 is started. The anaerobic water above the anaerobic tank 1 enters the interior of the first water supply pipe 31, passes through the second water supply pipe 33 and the third water supply pipe 38 in sequence, and is finally sprayed out from the interior of the water spray pipe 39.

[0042] By providing the water supply mechanism 3, a steady stream of anaerobic water is sprayed out from the inside of the water spray pipe 39, thereby continuously pushing the sludge particles accumulated below the anaerobic tank 1 upward, so that the anaerobic microorganisms can also decompose the organic matter above the anaerobic water, thereby improving the decomposition efficiency of the organic matter.

[0043] In the second embodiment, when the concentration of organic matter in the influent is unevenly distributed, the difference in the microbial growth environment between the upper and lower areas of the reactor will become larger, and the microorganisms will grow and reproduce faster. When the organic matter concentration in the upper area is low, the number of microorganisms is relatively small, while when the organic matter concentration in the lower area is close to the water inlet, the organic matter concentration is high, and the number of microorganisms in the bottom area is large, which will make the sludge bed dense and the resistance when water flows through is large, resulting in uneven water flow distribution. The water flow speed in some areas is too slow, affecting the sufficient contact between wastewater and microorganisms. In addition, during the operation of the UASB reactor, if the hydraulic retention time is shortened and the water flow speed is accelerated, the microorganisms in the lower area will be quickly flushed out of the reactor, while the microorganisms in the upper area are closer to the water outlet and are more likely to stay and accumulate in the reactor, resulting in a situation where the number of microorganisms in the upper area is greater than that in the lower area, resulting in insufficient decomposition and conversion capacity of the lower area for organic matter in the sewage, reducing the removal efficiency of organic matter in the reactor and deteriorating the effluent water quality. Therefore, the following structure is designed to solve the above technical problems.

[0044] See also Figure 4 and Figure 5 The transmission mechanism 6 includes a water block 61 fixedly connected to the inside of the second water supply pipe 33, the inside of the second water supply pipe 33 is rotatably connected to a transmission shaft, and the outside of the transmission shaft is evenly fixedly connected to a plurality of arc pieces 62. When the arc piece 62 is driven to rotate by the transmission shaft, it fits with the water block 61. One end of the transmission shaft passes through the second water supply pipe 33 and is fixedly connected to the first rotating shaft 64. The other end of the first rotating shaft 64 is provided with a first fixed cylinder 63. The outside of the first fixed cylinder 63 is fixedly connected to a plurality of connecting rods and the connecting rod is fixedly connected to the inner wall of the anaerobic tank 1. The inside of the first fixed cylinder 63 is respectively connected to the first bevel gear 65, the second bevel gear 67 and the third bevel gear 69. The second bevel gear 67 is meshed with the first bevel gear 65 and the third bevel gear 69 respectively. The other end of the first rotating shaft 64 is fixedly connected to the first bevel gear 65, the other end of the second bevel gear 67 is fixedly connected to the second rotating shaft 66, and the other end of the third bevel gear 69 is fixedly connected to the third rotating shaft 68.

[0045] Specifically, when anaerobic water is circulated, the anaerobic water is transported from top to bottom. When passing through the second water supply pipe 33, the anaerobic water is guided by the water retaining block 61, and hits one of the arc pieces 62. The arc piece 62 is pressed downward by water pressure, so that each arc piece 62 rotates clockwise along the transmission shaft, thereby driving the first rotating shaft 64 to rotate clockwise.

[0046] When the first rotating shaft 64 rotates clockwise, it drives the second rotating shaft 66 to rotate counterclockwise, thereby driving the third rotating shaft 68 to rotate clockwise.

[0047] See also Figure 6 and Figure 7 The stirring mechanism 8 includes a second fixed cylinder 81 fixedly connected to the other end of the second rotating shaft 66, and the interior of the second fixed cylinder 81 is fixedly connected to a power box 84. The upper side of the power box 84 is fixedly connected to a motor 83. The internal uniform bearing of the motor 83 is connected to four fourth bevel gears 85, and the other end of each fourth bevel gear 85 is fixedly connected to a fan blade 82. Each fourth bevel gear 85 is meshed with each other, and the upper sides of the four fourth bevel gears 85 are meshed with a fifth bevel gear 86. The other end of the fifth bevel gear 86 passes through the upper wall of the power box 84 and is fixedly connected to the output end of the motor 83.

[0048] Specifically, when the second rotating shaft 66 is driven to rotate counterclockwise, it indirectly drives the second fixed cylinder 81 to rotate counterclockwise, thereby driving the four fan blades 82 to rotate counterclockwise with the second fixed cylinder 81 as the axis. The four fan blades 82 are initially in a vertical state. When the four fan blades 82 rotate, they drive the surrounding sludge particles to move, thereby evenly stirring the surrounding sludge particles.

[0049] See also Figure 12 , c is the vertical state of the fan blade 82. When the fan blade 82 rotates counterclockwise with the second fixed cylinder 81 as the axis, the surrounding sewage particles are evenly stirred. d is the reverse blade state of the fan blade 82. When the fan blade 82 rotates counterclockwise with the second fixed cylinder 81 as the axis, the sewage particles above the fan blade 82 are driven downward. c is the normal blade state of the fan blade 82. When the fan blade 82 rotates counterclockwise with the second fixed cylinder 81 as the axis, the sewage particles below the fan blade 82 are driven upward.

[0050] When the output end of the motor 83 rotates clockwise by thirty degrees, the fifth bevel gear 86 is driven to rotate clockwise, thereby driving each fan blade 82 to rotate counterclockwise by thirty degrees around the fourth bevel gear 85 as the axis, thereby changing the fan blade 82 to the normal leaf state.

[0051] When the output end of the motor 83 rotates counterclockwise by thirty degrees, the fifth bevel gear 86 is driven to rotate counterclockwise, thereby driving each fan blade 82 to rotate clockwise by thirty degrees around the fourth bevel gear 85 as the axis, thereby turning the fan blade 82 into the reverse blade state.

[0052] See also Figure 8 and Figure 9 The area detection mechanism 7 includes a second connecting rod 75 fixedly connected to the other end of the third rotating shaft 68, the other end of the second connecting rod 75 is hinged to the first connecting rod 74, one side of the first connecting rod 74 is provided with a guide slide 72, and the guide slide 72 is fixedly connected to the inner wall of the anaerobic tank 1, the other end of the first connecting rod 74 is hinged to a slider 71, one side of the slider 71 is fixedly connected to the sludge concentration sensor 73, the inside of the guide slide 72 is provided with a slide groove, and the slider 71 is slidably connected to the slide groove.

[0053] Specifically, the transmission mechanism 6, the area detection mechanism 7 and the stirring mechanism 8 are all made of stainless steel. The infrared light source of the sludge concentration sensor 73 will emit an infrared light beam of a specific wavelength during detection. When the light passes through anaerobic water containing sludge particles, it will interact with the sludge particles, including being absorbed, reflected and scattered. The intensity of the scattered light is positively correlated with the number and concentration of the sludge particles, that is, the more sludge particles and the higher the concentration, the stronger the intensity of the scattered light. The photosensitive receiver inside the sensor detects the scattered light at a specific angle to the incident light beam and converts the received light signal into an electrical signal. Through the built-in algorithm and calibration curve, the electrical signal is converted into a numerical value of the sludge concentration. Finally, the sensor outputs the calculated sludge concentration data for real-time monitoring of sludge concentration changes during sewage treatment.

[0054] See also Figure 11, Figure a shows the movement state of the regional detection mechanism 7 when the sludge concentration sensor 73 is above the inside of the anaerobic tank 1, and Figure b shows the movement state of the regional detection mechanism 7 when the sludge concentration sensor 73 is below the inside of the anaerobic tank 1. Figure a shows the initial state of the regional detection mechanism 7. The third rotating shaft 68 rotates clockwise while driving the second connecting rod 75 to rotate clockwise. Since one end of the second connecting rod 75 is hinged to one end of the first connecting rod 74, when the second connecting rod 75 rotates clockwise from zero to ninety degrees, the first connecting rod 74 is driven to swing counterclockwise and move downward. When the second connecting rod 75 rotates clockwise from ninety degrees to one hundred and eighty degrees, the first connecting rod 74 is driven to swing clockwise and move downward, thereby driving the first connecting rod 74 to rotate clockwise from ninety degrees to one hundred and eighty degrees. The connecting rod 74 swings and moves downward, thereby driving the slider 71 to move downward along the slide, causing the sludge concentration sensor 73 to move downward along the slide until the second connecting rod 75 rotates one hundred and eighty degrees clockwise and the sludge concentration sensor 73 reaches the bottom of the slide. The second connecting rod 75 rotates clockwise again, and the sludge concentration sensor 73 is again driven by the slider 71 to move upward until the second connecting rod 75 rotates one hundred and eighty degrees clockwise again and the sludge concentration sensor 73 reaches the top of the slide. Every time the second connecting rod 75 rotates one hundred and eighty degrees, the sludge concentration sensor 73 detects the sludge particle concentration in this area, thereby detecting the sludge particle concentration of the upper anaerobic water and the lower anaerobic water inside the anaerobic tank 1 respectively.

[0055] When the sludge concentration sensor 73 detects that the sludge particle concentration of the upper anaerobic water inside the anaerobic tank 1 is greater than the sludge particle concentration of the lower anaerobic water, the output end of the motor 83 rotates counterclockwise by thirty degrees, and the fifth bevel gear 86 is driven to rotate counterclockwise, thereby driving each fan blade 82 to rotate clockwise by thirty degrees with the fourth bevel gear 85 as the axis, thereby changing the fan blade 82 to the reverse blade state. At this time, the fan blade 82 rotates counterclockwise with the second fixed cylinder 81 as the axis, generating a downward thrust, driving the sewage particles above the fan blade 82 downward, until the next sludge concentration sensor 73 detects that the sludge particle concentration of the upper anaerobic water inside the anaerobic tank 1 is less than one percent different from that of the lower anaerobic water, the output end of the motor 83 rotates clockwise by thirty degrees, causing the fan blade 82 to become a vertical state and continue to evenly stir the sludge particles.

[0056] When the sludge concentration sensor 73 detects that the sludge particle concentration of the upper anaerobic water inside the anaerobic tank 1 is lower than that of the lower anaerobic water, the output end of the motor 83 rotates clockwise by thirty degrees, and the fifth bevel gear 86 is driven to rotate clockwise, thereby driving each fan blade 82 to rotate counterclockwise by thirty degrees with the fourth bevel gear 85 as the axis, thereby changing the fan blade 82 into the normal blade state. At this time, the fan blade 82 rotates counterclockwise with the second fixed cylinder 81 as the axis, generating an upward thrust, driving the sewage particles above the fan blade 82 upward, until the next sludge concentration sensor 73 detects that the sludge particle concentration of the upper anaerobic water inside the anaerobic tank 1 is less than one percent different from that of the lower anaerobic water, the output end of the motor 83 rotates counterclockwise by thirty degrees, causing the fan blade 82 to become a vertical state and continue to stir the sludge particles evenly.

[0057] The first rotating shaft 64 is driven to rotate by the anaerobic water circulation. When the first rotating shaft 64 rotates, it can not only drive the fan blades 82 to rotate with the second fixed cylinder 81 as the axis to evenly stir the sludge particles, but also drive the sludge concentration sensor 73 to move up and down, and detect the concentration of sludge particles above and below the anaerobic water in the anaerobic tank 1 in real time. When the concentration of sludge particles above the anaerobic water is greater than or less than that below, the motor 83 controls the rotation of the fan blades 82 to change the fan blades 82 to the reverse or forward state, respectively, driving the sludge particles above and above the anaerobic water in the anaerobic tank 1 to move downward or upward, respectively, so that the concentration of sludge particles above and above the anaerobic water in the anaerobic tank 1 is always kept relatively balanced, thereby achieving the effect of uniform decomposition of organic matter by microorganisms and high efficiency of decomposition of organic matter.

[0058] Example 3: Since the size and density of different sludge particles will affect their movement state in water, smaller particles and particles with lower density are more easily affected by water flow and move. In some reactors, larger particles may settle due to their own weight, but smaller particles may be carried up and flow around under the action of water flow. When flowing, most of the particles will enter the interior of the guide slider 72, causing the slider 71 to squeeze the sludge particles when moving up and down. The sludge particles contain a large number of anaerobic microorganisms. The sliding and pressure of the slider 71 may cause mechanical damage to the microorganisms, affecting their activity and metabolic function. The reduction in microbial activity will weaken the sludge particles' ability to decompose and transform organic matter, affecting the treatment effect of the UASB reactor. Therefore, the following structure is designed to solve the above technical problems.

[0059] See also Figure 10A number of first gear columns 713 are evenly arranged inside the slide groove, and two seventh bevel gears 715 and a sixth bevel gear 712 are respectively connected to the bearings inside the slider 71. The other ends of the two seventh bevel gears 715 are fixedly connected to the upper fan 714 and the lower fan 716 respectively. The other end of the sixth bevel gear 712 is fixedly connected to the column gear 711, and the column gear 711 is meshed with the first gear column 713.

[0060] Specifically, when the slider 71 moves upward, the column gear 711 is driven by the first gear column 713 to rotate clockwise, thereby driving the sixth bevel gear 712 to rotate clockwise, and then driving the upper fan 714 to rotate clockwise, and the lower fan 716 to rotate counterclockwise. The upper fan 714 generates thrust while rotating, pushing the sludge particles above the slider 71, so that most of the sludge particles are pushed out of the chute.

[0061] When the slider 71 moves downward, the column gear 711 is driven by the first tooth column 713 to rotate counterclockwise, thereby driving the sixth bevel gear 712 to rotate counterclockwise, and then driving the upper fan 714 to rotate counterclockwise, and the lower fan 716 to rotate clockwise. The lower fan 716 generates thrust while rotating, pushing the sludge particles under the slider 71, so that most of the sludge particles are pushed out of the chute.

[0062] The upper fan 714 and the lower fan 716 are driven by the column gear 711 and the sixth bevel gear 712 to rotate, generating thrust, so that when the slider 71 moves up and down, the sludge particles above or below the slider 71 are pushed, so that most of the sludge particles are pushed out of the chute, effectively preventing most of the particles from entering the guide bar 72, causing the slider 71 to squeeze the sludge particles when moving up and down, causing mechanical damage to the microorganisms.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An anaerobic sewage treatment system, comprising a support frame (5), characterized in that: An anaerobic tank (1) is fixedly connected to the upper side of the support frame (5), a gas storage tank (2) is fixedly connected to the upper side of the anaerobic tank (1), a water supply mechanism (3) is further provided on the outside of the anaerobic tank (1), a three-phase separator (9) is fixedly connected to the upper part of the interior of the anaerobic tank (1), a stirring mechanism (8) is provided on the lower side of the three-phase separator (9) for stirring sludge particles inside the anaerobic water and driving the sludge particles to move up and down according to the number of sludge particles in the upper and lower areas inside the anaerobic tank (1), a regional detection mechanism (7) is provided on one side of the stirring mechanism (8) for detecting the concentration of sludge particles in the upper and lower areas inside the anaerobic tank (1), and a transmission mechanism (6) is provided on the lower side of the stirring mechanism (8); The water supply mechanism (3) includes a second water supply pipe (33) and a plurality of water spray pipes (39) arranged below the transmission mechanism (6); The transmission mechanism (6) includes a water retaining block (61) fixedly connected to the inside of the second water supply pipe (33); the inside of the second water supply pipe (33) is rotatably connected to a transmission shaft; the outside of the transmission shaft is evenly and fixedly connected to a plurality of arc pieces (62); one end of the transmission shaft passes through the second water supply pipe (33) and is fixedly connected to a first rotating shaft (64); the other end of the first rotating shaft (64) is provided with a first fixed cylinder (63); the inside of the first fixed cylinder (63) is respectively connected to a first bevel gear (65), a second bevel gear (67) and a third bevel gear (69) by bearings; the second bevel gear (67) is respectively meshed with the first bevel gear (65) and the third bevel gear (69); the other end of the first rotating shaft (64) is fixedly connected to the first bevel gear (65); the other end of the second bevel gear (67) is fixedly connected to the second rotating shaft (66); the other end of the third bevel gear (69) is fixedly connected to the third rotating shaft (68); The stirring mechanism (8) includes a second fixed cylinder (81) fixedly connected to the other end of the second rotating shaft (66); a power box (84) is fixedly connected inside the second fixed cylinder (81); a motor (83) is fixedly connected to the upper side of the power box (84); and four fourth bevel gears (85) are connected to the uniform bearing inside the motor (83); The other end of each of the fourth bevel gears (85) is fixedly connected to a fan blade (82), and each of the fourth bevel gears (85) is meshedly connected to each other. The upper sides of the four fourth bevel gears (85) are meshedly connected to a fifth bevel gear (86), and the other end of the fifth bevel gear (86) passes through the upper wall of the power box (84) and is fixedly connected to the output end of the motor (83); The area detection mechanism (7) includes a second connecting rod (75) fixedly connected to the other end of the third rotating shaft (68), the other end of the second connecting rod (75) is hinged to the first connecting rod (74), and a guide slide (72) is provided on one side of the first connecting rod (74), and the guide slide (72) is fixedly connected to the inner wall of the anaerobic tank (1); The other end of the first connecting rod (74) is hingedly connected to a slider (71), one side of the slider (71) is fixedly connected to a sludge concentration sensor (73), a slide groove is provided inside the guide bar (72), and the slider (71) is slidably connected to the slide groove; A plurality of first tooth columns (713) are evenly arranged inside the slide groove, and two seventh bevel gears (715) and a sixth bevel gear (712) are respectively connected to the interior of the slider (71) by bearings; The other ends of the two seventh bevel gears (715) are fixedly connected to the upper fan (714) and the lower fan (716), respectively. The other end of the sixth bevel gear (712) is fixedly connected to the column gear (711), and the column gear (711) is meshed with the first tooth column (713).

2. The anaerobic sewage treatment system according to claim 1, characterized in that: The plurality of water spray pipes (39) are combined into a circle for anaerobic water spraying. A second water pump (37) is provided on the lower side of the anaerobic tank (1). The output end of the second water pump (37) is connected to the water spray pipe (39). The input end of the second water pump (37) is fixedly connected to a third water supply pipe (38).

3. The anaerobic sewage treatment system according to claim 2, characterized in that: The other end of the third water supply pipe (38) is fixedly connected to a three-way valve (36), the other end of the three-way valve (36) is fixedly connected to a second water stop valve (35), and the upper end of the three-way valve (36) is fixedly connected to the first water stop valve (34).

4. The anaerobic sewage treatment system according to claim 3, characterized in that: The second water supply pipe (33) is fixedly connected to the other end of the first water stop valve (34); the outside of the anaerobic tank (1) is fixedly connected to a first water pump (32); the output end of the first water pump (32) is fixedly connected to the other end of the second water supply pipe (33); the input end of the first water pump (32) is fixedly connected to the first water supply pipe (31); the other end of the first water supply pipe (31) passes through the anaerobic tank (1) and is fixedly connected to the anaerobic tank (1).

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