An ecological sewage treatment plant sludge reduction and capacity expansion treatment device and process

Abstract

The present invention relates to the field of sewage sludge treatment, and particularly to an ecological sewage plant sludge reduction and volume expansion treatment device and process. A filter disc is provided on the inner wall of the treatment barrel. A separation unit for separating sewage and sludge is slidably arranged inside the treatment barrel. A drainage groove is formed on one side of the treatment barrel. Two reaction barrels are installed on the bottom plate, and the reaction barrels are connected to the treatment barrel through a pipeline assembly, which can effectively separate sewage and sludge. The sliding disc slides up and down inside the treatment barrel, and the partition plate rotates inside the semi-circular groove. When the partition plate is laid flat, it can block the semi-circular groove, so that sewage and sludge are static on the sliding disc. After the sludge settles, the sliding disc rises, and the sewage is discharged from the drainage groove. Subsequently, the partition plate flips, and the sludge falls into the main barrel through the semi-circular groove and finally enters the pipeline assembly, ensuring the separation effect of sewage and sludge, while avoiding damage to subsequent devices by impurities, and ensuring the stability and reliability of the treatment process.

Description

Technical Field

[0001] The present invention relates to the field of sewage sludge treatment, and particularly to an ecological sewage plant sludge reduction and volume expansion treatment device and process. Background Art

[0002] In the existing sewage treatment and sludge treatment processes, a multi-stage treatment process is usually adopted. First, the sewage undergoes pretreatment, and gravity sedimentation is carried out in the primary sedimentation tank to remove part of the suspended solids and organic matter. Subsequently, the sewage enters the biological treatment stage, which usually includes an anaerobic digestion tank and an aerobic digestion tank. The anaerobic digestion tank uses anaerobic microorganisms to decompose organic matter in an anaerobic environment, generating biogas and reducing the sludge volume, while the aerobic digestion tank further degrades organic matter in an aerobic environment to reduce the organic matter content of the sludge. Then, the sewage and sludge are subjected to subsequent treatment.

[0003] When the sewage enters the reaction tank for sedimentation, in the prior art, after the sludge settles to the bottom of the reaction tank, the sewage at the upper end of the reaction tank is pumped away to separate the sewage and sludge. However, when pumping to the adjacent area of the sludge and sewage, the water flow easily disturbs the bottom sludge and mixes it into the sewage again, resulting in the need for re-sedimentation and wasting time.

[0004] In the existing equipment, the anaerobic digestion and aerobic digestion processes of sludge can only be carried out separately in sequence. And after the sludge completes anaerobic digestion, it will directly enter the aerobic digestion tank, and it is impossible to realize the reflux to the anaerobic digestion tank for cyclic treatment, and it is difficult to flexibly adjust the treatment process according to actual needs, which may affect the overall treatment effect and resource utilization efficiency.

[0005] The patent with the publication number of CN116477757A discloses a municipal sewage continuous treatment device, which preliminarily treats the sewage by using a separation diversion channel. The sewage flows in the spiral separation diversion channel, and relies on centrifugal force to gather solid debris to one side for subsequent screening; during the treatment process, by controlling the rotation of the closed baffle on the shunt pipe, water is supplied to the treatment chamber one by one. The treatment chamber that is supplied with water first treats the sewage first. After the water supply of the remaining treatment chambers is completed, the first-treated treatment chamber drains water and admits new sewage to be treated.

[0006] However, when the above device separates sewage and sludge, it mainly relies on the activated sludge treatment tank, and this method has a poor separation effect, and there are often many fine sludge particles remaining in the treated sewage; moreover, it is difficult for the above device to ensure a good reaction environment for the treated substances. The aeration component is greatly affected by the water flow, and it is difficult to accurately control the aeration volume and aeration time, and it cannot meet the best reaction conditions of microorganisms.

[0007] In terms of the adjustment of the reaction process, relying on the water supply floating body to control the rotation of the closed baffle to switch the treatment chamber has poor stability and accuracy, and it is impossible to flexibly adjust the treatment process according to the actual characteristics of sewage and sludge, resulting in poor treatment effects and difficulty in achieving the ideal treatment standard.

[0008] Therefore, from the perspective of the above statements, there is still room for optimization in the existing technology for the treatment methods and processes of sewage sludge. Summary of the Invention

[0009] To solve the above problems, the present invention provides an ecological sewage treatment plant sludge reduction and capacity expansion treatment device, including a bottom plate and a treatment barrel. A filter disc is provided on the inner wall of the treatment barrel. A separation unit for separating sewage and sludge is slidably arranged inside the treatment barrel. A drainage groove is opened on one side of the treatment barrel. Two reaction barrels are installed on the bottom plate, and the reaction barrels are connected to the treatment barrel through a pipeline assembly.

[0010] The separation unit includes a sliding disc slidably arranged in the treatment barrel. Two semi-circular grooves are symmetrically opened on the sliding disc. Several partition plates are rotatably arranged in the semi-circular grooves. A main cylinder is slidably penetrated through the bottom of the treatment barrel and is connected to the bottom of the sliding disc, and the bottom of the main cylinder is connected to the pipeline assembly.

[0011] Preferably, a stirring assembly is further provided on one side of the main cylinder. The stirring assembly includes a feeding groove opened on the outer side of the main cylinder, and a rotating frame corresponding to the feeding groove is rotatably arranged on the outer side of the main cylinder. Several arc-shaped plates located inside the treatment barrel are slidably arranged on the outer side of the rotating frame.

[0012] Preferably, a screw rod is rotatably arranged at the bottom of the sliding disc and is located inside the main cylinder.

[0013] Preferably, the pipeline assembly includes a connecting cylinder. The two connecting cylinders are respectively located at the upper ends of the two reaction barrels. A dropping groove corresponding to the end of the connecting cylinder is opened on the reaction barrel. A swinging circular plate is hinged to the inner wall of the dropping groove through a torsion spring.

[0014] Preferably, the bottom of the main cylinder extends into the connecting cylinder on one side, and a bent pipe connected to the drainage groove is arranged in the connecting cylinder on the other side.

[0015] Preferably, an annular groove is opened at the bottom of the treatment barrel. A filter pressing plate located at the upper end of the annular groove is arranged at the bottom of the treatment barrel, and a connecting pipe is penetrated through the outside of the treatment barrel. The two sides of the connecting pipe are respectively communicated with the annular groove and the bent pipe.

[0016] Preferably, a partition assembly is arranged inside the reaction barrel to divide the internal area into two parts. The partition assembly includes an inclined plate arranged on the inner wall of the reaction barrel. The inclined plate divides the internal area of the reaction barrel into a first chamber and a second chamber. Two groups of strip-shaped grooves are symmetrically opened on the inclined plate, and the number of strip-shaped grooves in each group is several.

[0017] Preferably, a swing plate is hinged to the inner wall of one side of the strip-shaped groove through a torsion spring.

[0018] Preferably, a discharge groove penetrating through the bottom of the reaction barrel is provided, and a plugging block is inserted into the discharge groove.

[0019] In addition, the present invention also provides an ecological sewage treatment plant sludge reduction and volume expansion treatment process, including the following steps:

[0020] S1, Pouring sludge: Pour the sludge from the top of the treatment barrel, and the filter disc screens out large impurities in the sludge to prevent the impurities from damaging the device.

[0021] S2, Sludge-water separation: The sludge and water are left standing, so that the sludge precipitates onto the sliding plate. The sliding plate rises, so that the sewage is discharged through the drainage groove. The partition plate flips, and the sludge falls into the inner bottom wall of the treatment barrel through the semi-circular groove.

[0022] S3, Sludge-water transmission: The sewage and sludge are respectively transmitted to the corresponding reaction barrels through the pipeline assembly, and the reaction barrels provide aerobic digestion and anaerobic digestion environments for the corresponding sewage and sludge.

[0023] S4, Sludge-water reaction: The sewage and sludge respectively carry out aerobic digestion and anaerobic digestion in the corresponding reaction barrels, so that the harmful substances in the sludge and sewage are decomposed.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] First, by setting components such as a sliding plate, a semi-circular groove, a partition plate, and a main cylinder in the treatment barrel, the present invention can effectively separate sewage and sludge. The sliding plate slides up and down in the treatment barrel, and the partition plate rotates in the semi-circular groove. When the partition plate is laid flat, it can block the semi-circular groove, so that the sewage and sludge are left standing on the sliding plate. After the sludge settles, the sliding plate rises, and the sewage is discharged from the drainage groove. Subsequently, the partition plate flips, and the sludge falls into the main cylinder through the semi-circular groove and finally enters the pipeline assembly, ensuring the separation effect of sewage and sludge, avoiding damage to subsequent devices by impurities, and ensuring the stability and reliability of the treatment process.

[0026] Second, by setting a filter press plate and an annular groove at the bottom of the treatment barrel and combining the extrusion effects of the sliding plate and the partition plate, the present invention realizes efficient sludge dewatering. The sliding plate and the partition plate apply pressure to the sludge during the downward movement process. The water in the sludge is discharged through the small holes on the filter press plate. The inclined cross-section design of the annular groove enables the water to flow into the connecting pipe under the action of gravity, finally enters the bent pipe and flows into the reaction barrel, effectively reducing the sludge volume, increasing the solid content of the sludge, avoiding the disturbance of the water flow to the sludge, improving the dewatering efficiency, and reducing the subsequent treatment cost.

[0027] III. The present invention realizes the precise control of the reaction process by arranging a separation component and multiple valves in the reaction tank. The inclined plate in the reaction tank divides the reaction tank into a first chamber and a second chamber, which are respectively used for aerobic and anaerobic digestion reactions. The design of the swing plate enables the orderly transfer of sludge or sewage between the first chamber and the second chamber, avoiding the mixing and interference of the reaction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of the body structure of the present invention.

[0030] Figure 2 It is a schematic sectional view of the structure of the present invention.

[0031] Figure 3 It is a schematic diagram of the structure of the separation unit of the present invention.

[0032] Figure 4 It is a schematic diagram of the structure of the stirring component of the present invention.

[0033] Figure 5 It is the present invention Figure 4 Partial enlarged view of part A in the present invention.

[0034] Figure 6 It is a schematic diagram of the structure of the pipeline component of the present invention.

[0035] Figure 7 It is a schematic sectional view of the structure of the pipeline component of the present invention.

[0036] Figure 8 It is the present invention Figure 7 Partial enlarged view of part B in the present invention.

[0037] Figure 9 It is a schematic diagram of the structure of the swing circular plate of the present invention.

[0038] Figure 10 It is a schematic sectional view of the inclined plate of the present invention.

[0039] Figure 11 It is a schematic diagram of the structure of the inclined plate of the present invention.

[0040] Figure 12 It is the present invention Figure 11 Partial enlarged view of part C in the present invention.

[0041] Figure 13 It is a schematic diagram of the structure of the support plate of the present invention.

[0042] Figure 14 It is the present invention Figure 13 Partial enlarged view of part D in the present invention.

[0043] Figure 15 It is a schematic structural diagram of the sliding groove and the transverse groove of the present invention.

[0044] Figure 16 It is a schematic structural diagram of the driving unit of the present invention.

[0045] Figure 17 It is a schematic plan view of the driving unit of the present invention.

[0046] Figure 18 It is a bottom view of the reset push spring of the present invention.

[0047] Figure 19 It is the present invention Figure 18 Partial enlarged view of the part at E in the present invention.

[0048] In the figure, 1. bottom plate; 10. treatment barrel; 11. filter disc; 12. drainage groove; 13. reaction barrel; 2. separation unit; 20. sliding disc; 21. semi-circular groove; 22. partition board; 23. main cylinder; 3. stirring assembly; 30. feeding groove; 31. rotating frame; 32. arc-shaped plate; 33. auger rod; 4. pipeline assembly; 40. connecting cylinder; 41. dropping groove; 42. swinging circular plate; 43. bent pipe; 44. annular groove; 45. filter press plate; 46. connecting pipe; 47. L-shaped support plate; 48. fixing plate; 5. partitioning assembly; 50. conical plate; 51. inclined plate; 52. swinging plate; 53. blocking block; 54. driving shaft; 55. driving gear; 56. support plate; 57. arc-shaped rack; 58. valve; 6. sliding groove; 60. transverse groove; 7. driving unit; 70. cylinder support; 71. double-shaft cylinder; 72. passive plate; 73. limiting groove; 74. sliding plate; 75. rectangular block; 76. inserting plate; 77. connecting plate; 78. reset push spring. Specific embodiments

[0049] The following is a detailed description of the embodiments of the present invention in conjunction with Figures 1 to 19 The embodiments of the present invention will be described in detail.

[0050] The embodiments of the present application disclose an ecological sewage treatment plant sludge reduction and volume expansion treatment device and process for sludge treatment; first, large impurities in the sludge are separated to avoid affecting the subsequent treatment process. Then, effective separation of sewage and sludge is achieved, and the separated sludge is transported to a specific link. During the transportation process, the sludge is filter-pressed and dehydrated to reduce the sludge volume and increase the solid content, thereby reducing the subsequent treatment cost. Subsequently, the sewage and sludge are placed in different reaction environments for treatment. By adjusting the rotation direction and speed of the reaction container, the residence time of the material in different reaction environments can be flexibly adjusted, and additives can be added through specific openings to optimize the reaction environment.

[0051] Embodiment 1: Refer to Figure 1and Figure 2 As shown in Figure 2 , it includes a bottom plate 1, a treatment barrel 10, a filter disc 11, a separation unit 2, a drain trough 12, a reaction barrel 13 and a pipeline assembly 4. The treatment barrel 10 is located at the upper end of the bottom plate 1. A filter disc 11 is arranged on the inner wall of the treatment barrel 10. The filter disc 11 is used to separate large impurities in the sludge to avoid damage to subsequent devices caused by large impurities.

[0052] A separation unit 2 for separating sewage and sludge is slidably arranged inside the treatment barrel 10; a drain trough 12 is provided on one side of the treatment barrel 10, and sewage can be discharged from the treatment barrel 10 through the drain trough 12; two reaction barrels 13 are installed on the bottom plate 1, and the reaction barrels 13 are connected to the treatment barrel 10 through the pipeline assembly 4 in a through connection. The separated sludge and sewage will enter the corresponding reaction barrels 13 through the pipeline assembly 4 respectively for aerobic and anaerobic digestion reactions.

[0053] Continue to refer to Figure 2 and Figure 3 As shown in Figure 3 , it is the separation unit 2 for separating sewage and sludge; specifically, the separation unit 2 includes a sliding disc 20, a semi-circular groove 21, a partition plate 22 and a main cylinder 23. The sliding disc 20 is slidably arranged on the treatment barrel 10, that is, the sliding disc 20 can slide up and down inside the treatment barrel 10.

[0054] Two semi-circular grooves 21 are symmetrically arranged on the sliding disc 20. Several partition plates 22 are rotatably arranged in the semi-circular grooves 21. An external drive motor is installed on the inner wall of one side of the semi-circular groove 21. The external drive motor is connected to the rotating end of the partition plate 22 to drive the partition plate 22 to rotate in the semi-circular groove 21. When all the partition plates 22 are in a flat state, several corresponding partition plates 22 can block the semi-circular groove 21, so that sewage and sludge can fall on the sliding disc 20 and the partition plates 22. After standing for a period of time, the sludge and some impurities settle. At this time, the sliding disc 20 is driven upward by an external force, so that the sewage corresponds to the drain trough 12, and the sewage is discharged from the drain trough 12 to the outside of the treatment barrel 10. When the drain trough 12 is level with the sludge, the movement stops, and the partition plates 22 are flipped, so that the semi-circular groove 21 is no longer blocked, and the sludge on the partition plates 22 will fall to the inner bottom wall of the treatment barrel 10 through the semi-circular groove 21. At this time, the separation of sewage and sludge can be completed.

[0055] A main cylinder 23 is slidably penetrated through the bottom of the treatment barrel 10 and is connected to the bottom of the sliding disc 20. Moreover, the bottom of the main cylinder 23 is connected to the pipeline assembly 4. That is, the sludge falling on the bottom of the treatment barrel 10 can enter the main cylinder 23 and fall into the pipeline assembly 4 through the main cylinder 23, and the main cylinder 23 can drive the sliding disc 20 to move up and down when driven by an external force.

[0056] Refer to Figure 4 and Figure 5As shown, a stirring assembly 3 is further provided on one side of the main cylinder 23 in the treatment barrel 10. Specifically, the stirring assembly 3 includes a feeding trough 30, a rotating frame 31, an arc-shaped plate 32, and a screw rod 33. The feeding trough 30 is opened on the outer side of the main cylinder 23, that is, the sludge on the inner wall of the treatment barrel 10 can enter the main cylinder 23 through the feeding trough 30.

[0057] A rotating frame 31 corresponding to the feeding trough 30 is rotatably arranged on the outer side of the main cylinder 23. Several arc-shaped plates 32 located in the treatment barrel 10 are slidably arranged on the outer side of the rotating frame 31. A screw rod 33 located in the main cylinder 23 is rotatably arranged at the bottom of the sliding disk 20. The rotating frame 31 and the screw rod 33 can rotate under the drive of an external driving device. When the arc-shaped plate 32 rotates, the sludge in the treatment barrel 10 can be gathered into the feeding trough 30. The sludge enters the main cylinder 23 through the notch on the rotating frame 31 and the feeding trough 30. The rotation of the screw rod 33 in the main cylinder 23 drives the sludge to move, so that the sludge enters the pipeline assembly 4 from the opening at the other end thereof. The above-mentioned external driving device can be installed at the bottom of the sliding disk 20, so that the driving end of the driving device can be respectively connected to the screw rod 33 and the rotating frame 31.

[0058] Referring to Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, that is, the pipeline assembly 4 for transferring the sewage and sludge in the treatment barrel 10 to the corresponding reaction barrel 13. Specifically, the pipeline assembly 4 includes a connecting cylinder 40, a dropping trough 41, a swinging circular plate 42, a bent pipe 43, an annular groove 44, a filter pressing plate 45, a connecting pipe 46, an L-shaped support plate 47, and a fixing plate 48. The two connecting cylinders 40 are respectively located at the upper ends of the two reaction barrels 13. A dropping trough 41 corresponding to the end of the connecting cylinder 40 is opened on the reaction barrel 13. A swinging circular plate 42 is hinged to the inner wall of the dropping trough 41 through a torsion spring.

[0059] The bottom of the main cylinder 23 extends into the connecting cylinder 40 on one side. A bent pipe 43 connected to the drainage trough 12 is arranged in the connecting cylinder 40 on the other side. The sludge drops from the bottom opening of the main cylinder 23 onto the corresponding connecting cylinder 40, and then drops from the connecting cylinder 40 onto the swinging circular plate 42, driving the swinging circular plate 42 to swing, and no longer blocking the dropping trough 41, so that the sludge can drop into the corresponding reaction barrel 13. Then, the swinging circular plate 42 can be driven by the torsion spring to swing back again. Under the limit of the corresponding torsion spring, the swinging circular plate 42 will not swing towards the outside of the reaction barrel 13, but only swing towards the inside of the reaction barrel 13.

[0060] The sewage discharged from the drain trough 12 can enter the bent pipe 43 and then be discharged from the bent pipe 43 into the corresponding reaction barrel 13. During this process, the corresponding swing circular plate 42 will also flip so that the sewage can enter the reaction barrel 13 through the dropping trough 41.

[0061] An annular groove 44 is formed at the bottom of the treatment barrel 10. A filter pressing plate 45 is arranged at the bottom of the treatment barrel 10 and located above the annular groove 44. A connecting pipe 46 is penetratingly arranged on the outer side of the treatment barrel 10. The two sides of the connecting pipe 46 are respectively communicated with the annular groove 44 and the bent pipe 43. Before the sludge enters the main cylinder 23, first move the sliding plate 74 downward. The sludge is extruded by the sliding disk 20 and the partition plate 22. During the downward movement of the sliding plate 74, the sliding disk 20 and the partition plate 22 apply a downward pressure to the sludge, while the filter pressing plate 45 is fixed at the upper end of the annular groove 44, forming a stable supporting surface. As the sliding plate 74 descends, the sludge is gradually compressed, and the water in the sludge is forced to be discharged through the small holes on the filter pressing plate 45 under the strong pressure. These holes are designed very small, which can prevent the sludge particles from passing through and only allow the water to flow out. The squeezed water enters the annular groove 44. Since the cross-section of the annular groove 44 is inclined, the water flow naturally flows into the connecting pipe 46 under the action of gravity. The connecting pipe 46 penetrates the outer side of the treatment barrel 10 and is connected to the bent pipe 43. Therefore, the water will flow along the connecting pipe 46, finally enter the bent pipe 43, and flow into the corresponding reaction barrel 13 through the bent pipe 43, fully squeezing out the water in the sludge, reducing the volume of the sludge, increasing the solid content of the sludge, thereby reducing the cost of subsequent treatment and disposal. At the same time, the design of the annular groove 44 and the connecting pipe 46 also avoids the disturbance of the water flow to the sludge, prevents the sludge from mixing with the water again, and improves the dehydration efficiency. In addition, the bent pipe 43 can guide the water flow into the designated reaction barrel 13, which is convenient for subsequent treatment and utilization.

[0062] During the pressing process, the corresponding arc-shaped plate 32 will contact the upper end of the filter pressing plate 45 and move upward on the corresponding rotating frame 31 to avoid interfering with the moving path of the sliding disk 20 due to collision with the filter pressing plate 45.

[0063] Two L-shaped support plates 47 are symmetrically arranged on the bottom plate 1. The upper ends of the L-shaped support plates 47 are jointly provided with a fixing plate 48. The two sides of the fixing plate 48 are respectively connected to the outer sides of the corresponding connecting cylinders 40. The L-shaped support plates 47 are used to support the fixing plate 48, and the fixing plate 48 is used to support the corresponding connecting cylinder 40. On this basis, one side of the connecting cylinder 40 and the bent pipe 43 can also play a role in supporting the treatment barrel 10.

[0064] Refer to Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、Figure 13 and Figure 14 As shown in Figure 14 , a partition component 5 that divides the interior area of the reaction barrel 13 into two equal parts is provided inside the reaction barrel 13; specifically, the partition component 5 includes a conical plate 50, an inclined plate 51, a swing plate 52, a plugging block 53, a drive shaft 54, a drive gear 55, a support plate 56, an arc rack 57, and a valve 58. Two groups of symmetrically distributed conical plates 50 are arranged at the upper end of the bottom plate 1, and the reaction barrel 13 is located between two conical plates 50 of a corresponding group and is rotatably connected thereto. The reaction barrels 13 are connected by belt drive. A drive motor is provided on one side of the conical plate 50 through a motor base. The output shaft of the drive motor is connected to the end of the reaction barrel 13. Under the cooperation of the belt drive, the drive motor synchronously drives the two reaction barrels 13 to rotate under the drive of the corresponding conical plates 50.

[0065] An inclined plate 51 is provided on the inner wall of the reaction barrel 13. The inclined plate 51 divides the area inside the reaction barrel 13 into a first chamber and a second chamber. That is to say, the corresponding first chamber and second chamber can be used as reaction spaces for the aerobic digestion and anaerobic digestion environments of sewage and sludge, so that the sewage and sludge can react in the first chamber and the second chamber respectively, and there will be no interference between the first chamber and the second chamber. When the sewage or sludge enters the corresponding reaction barrel 13 through the corresponding dropping groove 41, it will first enter the first chamber. That is to say, according to actual needs, an aerobic digestion or anaerobic digestion environment is arranged in the first chamber, so that the sewage and sludge can react.

[0066] Two groups of strip-shaped grooves are symmetrically formed on the inclined plate 51, and the number of strip-shaped grooves in each group is several. One side inner wall of the strip-shaped groove is hinged with a swing plate 52 through a torsion spring. The swing plate 52 can swing in the corresponding strip-shaped groove when driven by an external force. Due to the limitation of the torsion spring, the swing plate 52 can only swing counterclockwise. When the reaction barrel 13 rotates counterclockwise, the sludge or sewage in the first chamber will move to one side of the inclined plate 51. At this time, the swing plate 52 opens, and the sludge or sewage in the first chamber will enter the second chamber, that is, from the aerobic digestion environment to the anaerobic digestion environment, and the transfer can be completed.

[0067] In actual application, if it is necessary to improve the reaction degree of the sludge or sewage, at this time, the reaction barrel 13 is driven to rotate again, which can drive the sludge or sewage to move to one side of the inclined plate 51 again. The swing plate 52 opens again, and the sludge or sewage will move to the first chamber again. When the reaction barrel 13 rotates clockwise, the sludge or sewage will not enter the second chamber through the swing plate 52, because the swing of the swing plate 52 in the counterclockwise direction is restricted by the torsion spring. This design of one-way swing ensures that the transfer of sludge or sewage between the first chamber and the second chamber is controllable and orderly, thus avoiding the mixing and interference of the reaction environment.

[0068] By reasonably controlling the rotation direction and speed of the reaction barrel 13, the residence time of sludge or sewage between the first chamber and the second chamber can be flexibly adjusted to meet different treatment requirements. For example, in an aerobic digestion environment, sludge or sewage requires a longer residence time to ensure the full degradation of organic matter, while in an anaerobic digestion environment, different residence times may be required to optimize biogas production. In addition, the design of the swing plate 52 not only realizes the transfer of sludge or sewage but also plays a role in stirring to a certain extent, promoting the uniform mixing of substances in the reaction barrel 13 and improving the reaction efficiency. The combined design of the strip-shaped grooves on the inclined plate 51 and the swing plate 52 makes the entire reaction process more flexible and efficient. By adjusting the rotation speed and direction of the motor, precise control of the sludge or sewage treatment process can be achieved. For example, when it is necessary to extend the residence time of sludge in the first chamber to improve the aerobic digestion effect, the rotation speed of the motor can be reduced. Conversely, when it is necessary to increase the transfer speed to meet the anaerobic digestion requirements, the rotation speed of the motor can be increased.

[0069] A discharge slot corresponding to the second chamber is opened at the bottom of the reaction barrel 13. A blocking block 53 is inserted into the discharge slot. Finally, after the sludge or sewage has completed the reaction, the sludge or sewage can be driven to move back into the second chamber again. The blocking block 53 is opened to no longer block the discharge slot, allowing the reacted sludge or sewage to be discharged out of the reaction barrel 13 through the discharge slot for the next stage of treatment.

[0070] The hinge joints of each group of swing plates 52 are connected to each other by a belt drive. A drive shaft 54 is symmetrically and rotatably inserted through the reaction barrel 13 and is connected to the hinge joint of one side of each group of swing plates 52. A drive gear 55 is provided at one end of the drive shaft 54 outside the reaction barrel 13. When the drive gear 55 is driven by an external force, it can drive the swing plate 52 on one side to swing through the corresponding drive shaft 54. One group of swing plates 52 can swing synchronously by means of a belt drive to no longer block the strip-shaped groove, allowing the sludge or sewage to move into the first chamber or the second chamber through the strip-shaped groove. The two groups of swing plates 52 are driven by two swing plates 52 respectively. In the initial state, the swing plate 52 is parallel to the strip-shaped groove under the drive of the corresponding torsion spring, and even if there is sludge or sewage on the swing plate 52, it will not swing.

[0071] On the outer side of the conical plate 50, there is a support plate 56. At the end of the support plate 56, there is an arc-shaped rack 57 corresponding to one side of the driving gear 55. When the reaction barrel 13 rotates counterclockwise, it will drive the driving gear 55 on one side to engage with the arc-shaped rack 57, and drive the driving gear 55 to drive a corresponding set of swing plates 52 to swing. Exactly at this time, the sludge and sewage are located on one side of the corresponding set of swing plates 52. The swing plate 52 flips, and the corresponding sewage or sludge will be transferred to another chamber (either the first chamber or the second chamber). When the driving gear 55 is no longer engaged with the arc-shaped rack 57, the swing plate 52 will flip back under the drive of the corresponding torsion spring to continue blocking the strip-shaped groove.

[0072] On the outer side of the reaction barrel 13, several valves 58 are symmetrically and penetratingly arranged. The two groups of valves 58 are respectively communicated with the first chamber and the second chamber. By opening the valves 58, various additives required for aerobic and anaerobic environments can be regularly put into the first chamber or the second chamber. In the aerobic first chamber, a nitrifying bacteria activator can be added, such as a preparation containing special enzymes or nutrients, which can enhance the activity of nitrifying bacteria, accelerate the conversion of ammonia nitrogen, and improve the aerobic denitrification efficiency; a dissolved oxygen enhancer, such as calcium peroxide, can release oxygen when the dissolved oxygen is insufficient due to a sudden increase in the concentration of sewage organic matter, ensuring the respiration of microorganisms and the denitrification reaction; a nutrient supplement, such as a compound microbial nutrient salt containing nitrogen, phosphorus, and potassium, can provide comprehensive nutrients for microorganisms, maintain their growth, reproduction, and population stability, and ensure the efficient progress of the denitrification reaction.

[0073] In the anaerobic second chamber, the anaerobic denitrifying bacteria agent is made of specific strains, which can strengthen the denitrification effect, convert nitrate nitrogen into nitrogen gas, and reduce the total nitrogen content; when the carbon-nitrogen ratio is unbalanced, carbon source supplements such as methanol and sodium acetate are added to provide an electron donor for anaerobic denitrifying bacteria and promote the denitrification reaction; pH regulators such as sodium bicarbonate are added to maintain the acid-base balance of the anaerobic environment and ensure the stable operation of the anaerobic denitrification reaction.

[0074] In practical applications, the valves 58 can provide a convenient way for the application of the MPCS technology (a well-known technology); through the ports of the valves 58, the relevant components and materials of the MPCS technology can be introduced into the reaction barrel 13.

[0075] The MPCS technology utilizes the influence of pollutants in the sewage biochemical unit on the growth and reproduction conditions of microorganisms. Based on the established data model, through precise control, forced interference, in-situ flora optimization screening, immobilization technology, etc., the flora in the biochemical unit can reach the highest activity and reproduction rate.

[0076] In an aerobic single chamber, the MPCS technology is based on specific biocatalytic materials and equipment to catalyze in-situ microorganisms. Its specific catalytic materials optimize and restructure the microbial community structure, enhance the reproduction and screening of heterotrophic denitrifying bacteria, strengthen the screening of nitrogen-removing microorganisms, and cooperate with the originally added nitrifying bacteria activator, dissolved oxygen enhancer, nutrient supplement, etc. By improving the microbial activity, it further accelerates the conversion of ammonia nitrogen, enhances the aerobic nitrogen removal efficiency, and at the same time promotes the decomposition of other pollutants by microorganisms, improving the overall treatment effect.

[0077] In an anaerobic two-chamber, the MPCS technology can also play a key role; by using targeted carbon source induction, denitrifying bacteria represented by Pseudomonas are rapidly enriched, and the relative abundance of denitrifying bacteria is significantly increased synchronously. This cooperates with the added anaerobic denitrifying bacteria agent and carbon source supplement to significantly strengthen the denitrification effect, more efficiently convert nitrate nitrogen into nitrogen gas, and reduce the total nitrogen content of the sewage. By using the strong denitrification electron supply specificity and energy supply targeting of specific catalytic materials, the activity of enzymes in microorganisms is increased, the periplasmic electron transfer process of microorganisms and the transmembrane transport of nitrogen-containing compounds are accelerated, the expression of various nitrogen-removal related genes of microorganisms is promoted, the biological competition ability of microorganisms is strengthened, and the anaerobic reaction environment is further optimized to ensure the stable and efficient operation of the anaerobic denitrification reaction.

[0078] In addition, the process equipment in the MPCS system promotes the rapid reproduction of the selected in-situ bacteria, gives full play to their roles, and completes the activation, screening and cultivation of microorganisms; using the MPCS system equipment, the dominant strains beneficial to pollutant removal in indigenous microorganisms are domesticated in the form of a process, and they act together with the original microorganisms in reaction barrel 13, making the entire biochemical system operate more efficiently and stably, realizing the deep decomposition of harmful substances in sewage and sludge, and improving the quality of sewage treatment.

[0079] During the application process of the MPCS technology, various required auxiliary equipment can be connected to the outside of reaction barrel 13 through the ports of valve 58; to maintain the stability of the MPCS reaction environment inside reaction barrel 13 and ensure the efficient progress of the MPCS reaction under suitable conditions.

[0080] Example 2: Refer to Figure 15As shown, on the basis of the first embodiment, in order to facilitate the cleaning of impurities on the filter disc 11, a sliding groove 6 is provided on the inner wall of the treatment barrel 10. The outer side of the filter disc 11 extends into the sliding groove 6, and the filter disc 11 is slidably connected to the treatment barrel 10 and the sliding groove 6. A plurality of transverse grooves 60 corresponding to the partition plates 22 are provided on the filter disc 11. The filter disc 11 can move in the up and down direction under the limitation of the corresponding sliding groove 6, and the transverse grooves 60 are used to allow the sludge that meets the size requirements to pass through, and the large impurities will be blocked. During the subsequent cleaning, by driving the sliding disc 20 to rise, and when the sliding disc 20 rises, the partition plate 22 rotates 90 degrees. After the sliding disc 20 contacts the bottom wall of the filter disc 11, the partition plate 22 will be inserted into the corresponding transverse groove 60 to dredge the transverse groove 60, and the sliding disc 20 continues to drive the filter disc 11 to rise until it is close to the port of the treatment barrel 10, facilitating the operator to clean the large impurities at the upper end of the filter disc 11.

[0081] Embodiment Three: Refer to Figure 7 As shown, on the basis of the first, second, and third embodiments, in order to drive the main cylinder 23 to move up and down and to prevent the blocking block 53 from blocking the corresponding discharge slot, a driving unit 7 is provided on the bottom plate 1; specifically, the driving unit 7 includes a cylinder bracket 70, a double-acting cylinder 71, a passive plate 72, a limiting groove 73, a sliding plate 74, a rectangular block 75, an insertion plate 76, a connecting plate 77, and a reset push spring 78. The cylinder bracket 70 is provided on the bottom plate 1, and one end thereof extends between the two reaction barrels 13. A double-acting cylinder 71 is provided at the end of the cylinder bracket 70. A passive plate 72 corresponding to the upper shaft of the double-acting cylinder 71 is provided on one side of the main cylinder 23 outside the treatment barrel 10. The cylinder bracket 70 is used to support the double-acting cylinder 71, and when the telescopic shaft of the double-acting cylinder 71 moves upward to contact the passive plate 72, the sliding disc 20 can be indirectly driven to rise through the passive plate 72. When the telescopic shaft of the double-acting cylinder 71 descends, the corresponding sliding disc 20 will also descend under the action of gravity. That is, when pressing and draining the sludge, the pressing is carried out by the weight of the sliding disc 20 and the main cylinder 23 itself to prevent the pressing force from being too large and the sludge from entering the filter press plate 45 and blocking the filter press plate 45.

[0082] The conical plate 50 is provided with a limiting groove 73, and a sliding plate 74 is slidably provided between the corresponding limiting grooves 73 at the front and rear. A rectangular block 75 is provided on the sliding plate 74, and an arc groove is provided on the rectangular block 75. An L-shaped cross-section insertion plate 76 is provided on the outer side of the adjacent blocking block 53, and the arc end of the insertion plate 76 is inserted in the corresponding arc groove. A connecting plate 77 is provided between the two sliding plates 74, and the connecting plate 77 corresponds to the axis at the lower end of the double-axis cylinder 71. A connecting plate 77 is provided between the sliding plate 74 and the inner bottom wall of the corresponding limiting groove 73. The reset push spring 78 drives the corresponding sliding plate 74 to be located in the middle of the limit groove 73 in the initial state, and the sliding plate 74 can move up and down under the limit of the corresponding limit groove 73 when driven by external force, and the telescopic shaft of the double-axis cylinder descends and contacts with the connecting plate 77 in the middle of the sliding plate 74, and indirectly drives the connecting plate 77 to move downward, and the rectangular block 75 will pull the blocking block 53 out of the discharge trough through the cooperation of the arc groove and the plug-in plate 76 to discharge the sewage and sludge that have completed the reaction.

[0083] When the reaction barrel 13 rotates, the blocking block 53 will drive the insertion plate 76 to rotate synchronously, and the axis of the insertion plate 76 and the arc groove coincides with the axis of the reaction barrel 13, that is, the insertion plate 76 can move out of the corresponding arc groove when following the rotation of the reaction barrel 13, and when the reaction barrel 13 rotates to its original position, the insertion plate 76 will be inserted into the arc groove again.

[0084] When the blocking block 53 is pulled out and wants to be inserted back into the discharge trough, the discharge trough at the bottom of the reaction barrel 13 is driven to correspond to the blocking block 53. At this time, the telescopic shaft of the double-axis cylinder 71 no longer interferes with the connecting plate 77, and the reset push spring 78 can push the sliding plate 74 to move to the initial height. At this time, the blocking block 53 will be reinserted into the discharge trough to seal it.

[0085] In addition, the present invention also provides an ecological sewage treatment plant sludge reduction and capacity expansion treatment process, comprising the following steps:

[0086] S1, pouring sludge: pouring sludge from the top of the processing barrel 10, and the filter disc 11 screens out large impurities in the sludge to prevent the impurities from damaging the device.

[0087] S2, mud and water separation: the mud and water are left to stand, so that the sludge settles on the sliding plate 20, the sliding plate 20 rises, so that the sewage is discharged through the drainage groove 12, the partition 22 turns over, and the sludge falls on the bottom wall of the processing barrel 10 through the semicircular groove 21.

[0088] S3, mud and water transmission: sewage and sludge are respectively transmitted to the corresponding reaction barrels 13 through the pipeline components 4, and the reaction barrels 13 provide aerobic digestion and anaerobic digestion environments for the corresponding sewage and sludge.

[0089] S4, Slurry Reaction: Sewage and sludge are respectively subjected to aerobic digestion and anaerobic digestion in the corresponding reaction barrels 13, so as to decompose the harmful substances in the sludge and sewage.

[0090] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0091] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ecological sewage treatment plant sludge reduction and capacity expansion treatment device, comprising a bottom plate (1) and a treatment barrel (10), characterized in that: A filter disc (11) is arranged on the inner wall of the processing barrel (10), a separation unit (2) for separating sewage sludge is slidably arranged inside the processing barrel (10), a drainage groove (12) is provided on one side of the processing barrel (10), two reaction barrels (13) are installed on the bottom plate (1), and the reaction barrels (13) and the processing barrel (10) are connected via a pipeline assembly (4); The separation unit (2) comprises a sliding plate (20) slidably arranged in the processing barrel (10), two semicircular grooves (21) are symmetrically provided on the sliding plate (20), a plurality of partitions (22) are rotatably arranged in the semicircular grooves (21), a main cylinder (23) connected to the bottom of the sliding plate (20) is slidably penetrated through the bottom of the processing barrel (10), and the bottom of the main cylinder (23) is connected to the pipeline assembly (4); A stirring assembly (3) is also provided on one side of the main cylinder (23) located on the processing barrel (10), the stirring assembly (3) comprising a material feeding trough (30) provided on the outside of the main cylinder (23), a rotating frame (31) corresponding to the material feeding trough (30) being rotatably provided on the outside of the main cylinder (23), and a plurality of arc-shaped plates (32) located in the processing barrel (10) being slidably provided on the outside of the rotating frame (31); A auger rod (33) is rotatably disposed at the bottom of the sliding plate (20) and is located inside the main cylinder (23); A sliding groove (6) is provided on the inner wall of the treatment barrel (10), the outer side of the filter disc (11) extends into the sliding groove (6), and the filter disc (11) is slidably connected to the treatment barrel (10) and the sliding groove (6), and a plurality of transverse grooves (60) corresponding to the partition plate (22) are provided on the filter disc (11).

2. According to claim 1, the sludge reduction and capacity expansion treatment device for an ecological sewage plant is characterized by: The pipeline assembly (4) comprises a connecting cylinder (40), wherein the two connecting cylinders (40) are respectively located at the upper ends of the two reaction barrels (13), and the reaction barrels (13) are provided with a drop groove (41) corresponding to the end of the connecting cylinder (40), and the inner wall of the drop groove (41) is hinged with a swinging circular plate (42) via a torsion spring.

3. The sludge reduction and capacity expansion treatment device for an ecological sewage treatment plant according to claim 1 is characterized by: The bottom of the main tube (23) extends into the connecting tube (40) on one side, and a bent tube (43) connected to the drainage groove (12) is provided in the connecting tube (40) on the other side.

4. The sludge reduction and capacity expansion treatment device for an ecological sewage treatment plant according to claim 3 is characterized by: An annular groove (44) is provided at the bottom of the processing barrel (10), a filter press plate (45) is provided at the top of the annular groove (44) at the bottom of the processing barrel (10), and a connecting pipe (46) is provided through the outside of the processing barrel (10), with two sides of the connecting pipe (46) respectively connected to the annular groove (44) and the bent pipe (43).

5. The device for reducing and expanding the sludge volume of an ecological sewage treatment plant according to claim 1 is characterized by: A partition assembly (5) is arranged inside the reaction barrel (13) to divide the internal area of ​​the reaction barrel (13) into two. The partition assembly (5) comprises an inclined plate (51) arranged on the inner wall of the reaction barrel (13). The inclined plate (51) divides the internal area of ​​the reaction barrel (13) into a first chamber and a second chamber. Two groups of strip grooves are symmetrically formed on the inclined plate (51), and the number of strip grooves in each group is a plurality.

6. The device for reducing and expanding the sludge volume of an ecological sewage treatment plant according to claim 5 is characterized by: A swing plate (52) is hingedly connected to an inner wall of one side of the strip-shaped groove via a torsion spring.

7. The device for reducing and expanding the sludge volume of an ecological sewage treatment plant according to claim 1 is characterized by: A discharge groove is provided at the bottom of the reaction barrel (13) and penetrates into the interior thereof, and a blocking block (53) is inserted into the discharge groove.

8. An ecological sewage treatment plant sludge reduction and capacity expansion treatment process, using an ecological sewage treatment plant sludge reduction and capacity expansion treatment device as described in any one of claims 1 to 7, characterized in that: The treatment process includes the following steps: S1, pouring sludge: pouring sludge from the top of the treatment barrel (10), and filtering the large impurities in the sludge with the filter disc (11) to prevent the impurities from damaging the device; S2, mud and water separation: the mud and water are left to stand, so that the sludge settles on the sliding plate (20), the sliding plate (20) rises, so that the sewage is discharged through the drainage groove (12), the partition (22) turns over, and the sludge falls onto the bottom wall of the processing barrel (10) through the semicircular groove (21); S3, mud and water transmission: sewage and sludge are respectively transmitted to corresponding reaction barrels (13) through pipeline components (4), and the reaction barrels (13) provide aerobic digestion and anaerobic digestion environments for the corresponding sewage and sludge; S4, mud-water reaction: sewage and sludge are respectively subjected to aerobic digestion and anaerobic digestion in corresponding reaction barrels (13), so that harmful substances in the sludge and sewage are decomposed.

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