High-concentration low-aeration integrated sewage treatment device

Abstract

The invention discloses a high-concentration low-aeration integrated sewage treatment device, and relates to the technical field of sewage treatment, the high-concentration low-aeration integrated sewage treatment device comprises a reaction cylinder, a middle frame and two side frames are arranged above the reaction cylinder, the middle frame carries a motor-driven stirring device, the side frames are respectively provided with a filtering device and a carbon source connecting pipe, the side wall of the reaction cylinder is provided with an oxygen delivery hole and a liquid outlet hole, and the bottom of the reaction cylinder is provided with a sludge discharge hole. The stirring device realizes lifting adjustment of a main shaft and rotation of stirring blades through a spiral channel and a boss structure of a middle cylinder; the filtering device adopts the linkage design of a filtering plate and a dredging plate, and automatic pore dredging and particulate matter discharging are completed; the drainage device adapts to the thickness of sludge through a floating plate, a sliding pipe and an electromagnetic adsorption structure to achieve precise separation of clear water. According to the device, filtration, denitrification nitrogen removal, aerobic degradation and precipitation separation are integrated, separate pool operation is not needed, stirring and aeration are cooperated to reduce energy consumption, the automation degree of filtration and sludge discharge is high, and the device is suitable for various high-concentration sewage purification scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, more particularly, it relates to a high-concentration low-aeration integrated sewage treatment device. BACKGROUND

[0002] The high-concentration low-aeration sewage treatment device is specially designed for treating high-concentration organic wastewater. It optimizes the combination of aeration system and process to achieve efficient treatment while effectively reducing energy consumption. The traditional high-concentration low-aeration sewage treatment process is as follows: first, a filtration device is used to pretreat high-concentration organic wastewater to remove large particles of suspended solids and floating matter; then, the wastewater flows into an anoxic tank, where carbon sources are added to carry out denitrification and nitrogen reduction under anoxic conditions, and some organic matter is degraded. In this process, slow stirring is required to maintain the suspended state of the sludge; then, the wastewater enters an aerobic tank, where aerobic microorganisms play a role to further degrade organic matter. This process requires strong aeration and stirring to maintain the mixing state and supply oxygen to provide the necessary living conditions for microorganisms; finally, the wastewater is introduced into a sedimentation tank, and after the tank water is completely still, the supernatant after sedimentation is discharged as treated effluent.

[0003] However, the traditional device has some shortcomings, such as the need for multiple independent devices or tank bodies for each treatment step, large floor area, high equipment investment, and frequent cleaning of the filtration device. The stirring device cannot avoid sludge deposition during the sedimentation process, affecting the discharge of clear water. The water discharge device cannot automatically adapt to the thickness of the sludge, resulting in incomplete separation of clear water and sludge. Therefore, it is necessary to develop a new type of high-concentration low-aeration integrated sewage treatment device to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a high-concentration low-aeration integrated sewage treatment device.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme: a high-concentration low-aeration integrated sewage treatment device, comprising a rack, a reaction cylinder is arranged on the rack, a middle rack is arranged above the opening of the reaction cylinder, a motor is arranged on the middle rack, a stirring device is connected to the end of the rotating shaft of the motor, side racks one and two are arranged above the opening of the reaction cylinder and on both sides of the middle rack, a filter device is arranged on the side rack one, a carbon source connecting pipe is arranged on the side rack two, the carbon source connecting pipe is connected with a carbon source adding device, oxygen supply holes and liquid outlet holes are arranged on the side wall of the reaction cylinder, an oxygen supply machine is arranged on the oxygen supply holes, a water discharge device is arranged on the liquid outlet holes, a sludge discharge hole is arranged at the bottom of the reaction cylinder, and a sludge discharge valve is arranged on the sludge discharge hole; the stirring device comprises a middle cylinder fixedly arranged on the rotating shaft of the motor, a slide is arranged in the middle cylinder, a sliding block is slidably arranged in the slide, a spring one is arranged in the slide, the two ends of the spring one are respectively connected with the sliding block and the top of the slide, a main shaft is arranged on the lower surface of the sliding block, the main shaft extends downward through the middle cylinder to the bottom of the reaction cylinder, a middle cylinder is arranged on the middle rack, a through hole is arranged in the middle part of the middle cylinder, the main shaft passes through the through hole, two spiral channels are arranged on the side wall of the through hole, a convex table for passing through the spiral channel is symmetrically arranged on the side wall of the main shaft, a circular ring is arranged on the side wall of the sliding block, and the outer part of the circular ring is sleeved on the outer part of the middle cylinder.

[0006] As a preferred technical scheme of the present application, the filter device comprises a filter box fixedly arranged on the side rack one, the filter box is composed of a lower filter box and an upper filter box in communication, the cross-sectional area of the upper filter box is larger than that of the lower filter box, an impurity outlet is arranged on the lower opening of the upper filter box and is staggered with the upper opening of the lower filter box, a rotating seat is arranged on the upper opening edge of the lower filter box, a filter plate is rotatably arranged on the rotating seat, the side walls of the lower filter box and the upper filter box towards the center of the rack are arc surfaces, a blocking strip for the rotation of the filter plate is arranged on the arc surface, a dredging plate is rotatably arranged between the upper opening side walls of the filter box, the rotation shafts of the dredging plate and the filter plate coincide, filter holes are arranged on the dredging plate, and dredging nails for being inserted into the filter holes of the filter plate are arranged on the dredging plate.

[0007] As a preferred technical scheme of the present application, the two ends of the rotation shaft of the dredging plate extend to the outer part of the filter box, side plates are arranged at the two ends of the rotation shaft of the dredging plate, a sliding column is arranged at the end part of the side plate, the sliding column is inserted into a sliding groove, a connecting plate is arranged between the two sliding grooves, a sliding rod is arranged on the outer side wall of the filter box, the connecting plate is slidably arranged in the sliding rod, a spring two is sleeved on the outer part of the sliding rod, the two ends of the spring two are respectively connected with the connecting plate and the lower end of the sliding rod, a push plate is arranged at the upper end of the connecting plate, and a semicircular table in contact with the circular ring is arranged on the push plate.

[0008] As a preferred technical scheme of the present application, the part of the filter plate located on the upper opening of the lower filter box is provided with filter holes, and the part of the filter plate located above the impurity outlet is a solid plane.

[0009] As a preferred technical scheme of the present application, the axis of the arc surface and the axis of the rotating seat coincide.

[0010] As a preferred technical scheme of the present application, the main shaft is sequentially provided with multiple layers of blade assemblies from bottom to top, each layer of blade assembly comprises three rotating tables uniformly arranged on the side wall of the main shaft, stirring blades are arranged on the rotating tables, short rods are arranged on the rotating shafts of the stirring blades, the end portions of the short rods in each vertical row are jointly arranged with a connecting rod, the lower surface of the middle cylinder is arranged with a sliding ring, three insertion plates are uniformly arranged below the sliding ring, the three insertion plates are used for being inserted into the three rotating tables of the uppermost layer respectively, and the three insertion plates are jointly connected with a sliding cylinder which is slidingly arranged on the main shaft.

[0011] As a preferred technical scheme of the present application, the end portion of the stirring blade close to the rotating table is a vertical surface in the lower half and an arc angle in the upper half.

[0012] As a preferred technical scheme of the present application, the water discharge device comprises a drainage pipe arranged on the liquid outlet hole, and a drainage valve is arranged at the outlet end of the drainage pipe.

[0013] As a preferred technical scheme of the present application, the inlet end of the drainage pipe is slidingly arranged on a sliding pipe, a floating plate is arranged at the bottom of the sliding pipe, a liquid hole is arranged at the bottom of the sliding pipe, a magnet is arranged at the upper end of the sliding pipe, and an electromagnet for attracting the magnet is arranged on the outer wall of the reaction cylinder.

[0014] The present application has the following beneficial effects compared with the prior art:

[0015] (1) The present application integrates the functions of filtration, denitrification, aerobic degradation and sedimentation separation in a single reaction cylinder, without the need for separate tank settings, greatly reducing the equipment floor area and spatial layout complexity, reducing pipeline connection and system maintenance costs, and realizing continuous treatment of high-concentration sewage.

[0016] (2) In the denitrification and aerobic degradation stages, the stirring blades are in a horizontal unfolded state, and the end portion of the main shaft is located at the bottom of the reaction cylinder, so that the sewage can be fully stirred by starting the motor; in the sedimentation stage, the stirring blades are vertically stored to avoid mud adhesion, and the main shaft is automatically raised upward to provide space for mud sedimentation. Therefore, the process requirements of different treatment stages can be adapted, and the overall treatment efficiency is improved.

[0017] (3) The filter plate and the dredging plate of the present application are coaxially linked, the dredging nails are driven into the filter holes to clear the blockage by using the lifting power of the stirring device, and the filter plate is tilted to realize automatic discharge of particulate matter, avoiding the blockage problem of traditional filter devices, without the need for manual cleaning, reducing the maintenance frequency and labor intensity, and ensuring the continuous and stable operation of the filtration system.

[0018] (4) The water discharge device of the present application is self-adaptively lifted with the thickness of the sludge through the floating plate, so that the liquid hole is always kept at the interface between the clear water layer and the sludge layer, the clear water and the sludge are accurately separated, the problem of mud entrainment caused by the fixed position of the liquid outlet of the traditional device is avoided, and the water purity and treatment effect are significantly improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the invention from a bottom view.

[0020] Figure 2 This is a top view of the overall structure of the present invention.

[0021] Figure 3 This is a schematic cross-sectional view of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the reaction cylinder of the present invention.

[0023] Figure 5 This is a schematic diagram of the stirring device of the present invention.

[0024] Figure 6 This is a schematic diagram of the cylinder structure in this invention.

[0025] Figure 7 This is a schematic diagram of the cross-section of the cylinder in this invention.

[0026] Figure 8 This is a schematic diagram of the structure of the stirring blade of the present invention.

[0027] Figure 9 This is a schematic diagram of the structure of the filtration device of the present invention.

[0028] Figure 10 This is a schematic diagram of the structure of the filter box of the present invention.

[0029] Figure 11 This is a schematic diagram of the internal structure of the filtration device of the present invention.

[0030] Figure 12 This is a schematic diagram of the installation structure of the filter plate and the unblocking plate of the present invention.

[0031] Figure 13 This is a schematic diagram of the structure of the unblocking plate of the present invention.

[0032] Figure 14 This is a schematic diagram of the drainage device of the present invention.

[0033] Figure 15 This is a schematic diagram of the slide tube structure of the present invention.

[0034] Fig. 1: frame; 2: reaction cylinder; 201: oxygen inlet; 202: liquid outlet; 203: sludge discharge hole; 3: middle frame; 4: motor; 5: side frame one; 6: side frame two; 7: carbon source connecting pipe; 8: oxygen inlet machine; 9: sludge discharge valve; 10: middle cylinder; 1001: slide; 11: sliding block; 12: spring one; 13: main shaft; 14: middle cylinder; 1401: through hole; 1402: spiral; 15: boss; 16: ring; 17: filter box; 1701: lower filter box; 1702: upper filter box; 1703: impurity outlet; 1704: arc surface; 18: rotating seat; 19: filter plate; 20: blocking bar; 21: dredging plate; 22: dredging nail; 23: side plate; 24: sliding column; 25: sliding groove; 26: connecting plate; 27: sliding rod; 28: spring two; 29: push plate; 30: semicircular table; 31: rotating table; 32: stirring blade; 3201: vertical surface; 3202: arc angle; 33: short rod; 34: connecting rod; 35: sliding ring; 36: plug plate; 37: sliding cylinder; 38: drainage pipe; 39: drainage valve; 40: sliding pipe; 4001: liquid hole; 41: floating plate; 42: magnet; 43: electromagnet. DETAILED DESCRIPTION

[0035] In the present application, the orientation such as "upper", "lower" is generally directed to the direction shown in the drawings or the vertical, perpendicular or gravity direction unless otherwise stated; similarly, for the convenience of understanding and description, "left", "right" is generally directed to the left and right shown in the drawings; "inner", "outer" refers to the inner and outer relative to the contour of each component, but the above orientation words are not used to limit the present application.

[0036] Embodiment: Please refer to Figures 1 to 14 Structure diagram, the present application provides the following technical scheme: a high concentration and low aeration integrated integrated sewage treatment device, including frame 1, frame 1 is equipped with reaction cylinder 2, the opening of reaction cylinder 2 is equipped with middle frame 3, middle frame 3 is equipped with motor 4, the rotating shaft end of motor 4 is connected with stirring device, the opening of reaction cylinder 2 and located at both sides of middle frame 3 are equipped with side frame one 5 and side frame two 6, side frame one 5 is equipped with filter device, side frame two 6 is equipped with carbon source connecting pipe 7, carbon source connecting pipe 7 is connected with carbon source adding device, the side wall of reaction cylinder 2 is equipped with oxygen inlet 201 and liquid outlet 202, oxygen inlet 201 is equipped with oxygen inlet machine 8, liquid outlet 202 is equipped with water discharge device, the bottom of reaction cylinder 2 is equipped with sludge discharge hole 203, sludge discharge hole 203 is equipped with sludge discharge valve 9.

[0037] Specifically, sewage is poured into the filtering device to filter out large particles in the sewage, and the sewage enters the reaction cylinder 2 from the filtering device. The carbon source adding device is started, and the carbon source is added into the reaction cylinder 2 through the carbon source connecting pipe 7. The carbon source is put into the reaction cylinder 2 for denitrification and nitrogen removal. Optionally, the carbon source is sodium acetate. During this process, the motor 4 is rotated at a low speed, and the stirring device slowly stirs the sewage. Then, the motor 4 is started quickly, the stirring device stirs the sewage quickly, and the oxygen feeder 8 is started to deliver oxygen to the sewage, so that the organic matter is degraded by aerobic microorganisms. Finally, the stirring device is retracted, so that the sewage in the reaction cylinder 2 is completely stationary. After the sludge settles to the bottom, the water discharge device is started to discharge clean water, and the sludge discharge valve 9 is started to discharge sludge.

[0038] The stirring device comprises a middle cylinder 10 fixed on the rotating shaft of the motor 4. A slide 1001 is arranged in the middle cylinder 10. A sliding block 11 is slidably arranged in the slide 1001. A spring 12 is arranged in the slide 1001. The two ends of the spring 12 are respectively connected with the sliding block 11 and the top of the slide 1001. The lower surface of the sliding block 11 is provided with a main shaft 13 extending downward to the bottom of the reaction cylinder 2 through the middle cylinder 10, so as to facilitate the full stirring of the sewage. A middle cylinder 14 is arranged on the middle frame 3. The middle part of the middle cylinder 14 is provided with a through hole 1401 through which the main shaft 13 passes. Two spiral channels 1402 are arranged on the side wall of the through hole 1401. The side wall of the main shaft 13 is symmetrically provided with a boss 15 for passing through the spiral channels 1402. A circular ring 16 is arranged on the side wall of the sliding block 11, and the outer part of the circular ring 16 is sleeved on the outer part of the middle cylinder 10.

[0039] Specifically, the motor 4 rotates forward to drive the middle cylinder 10 to rotate forward. At this time, the boss 15 is located below the middle cylinder 14, and the boss 15 is in contact with the lower surface of the middle cylinder 14. The spring 12 is in a stretched state, and the sliding block 11 is located at the lower position of the slide 1001. When the sewage does not need to be stirred, the motor 4 reversely rotates to drive the middle cylinder 10 to reversely rotate. The boss 15 passes through the lower outlet of the spiral channel 1402. The spring 12 provides a pulling force to make the boss 15 enter the spiral channel 1402. With the continuous reverse rotation of the middle cylinder 10, the boss 15 slides upward along the spiral channel 1402. The boss 15 moves upward with the main shaft 13. The sliding block 11 slides upward along the slide 1001. The spring 12 changes from the stretched state to the compressed state. Then, the boss 15 slides out of the upper outlet of the spiral channel 1402. The boss 15 is in contact with the upper surface of the middle cylinder 14. At this time, the main shaft 13 moves to the upper position, and the main shaft 13 is away from the bottom of the reaction cylinder 2, so as to leave space for the sludge to settle.

[0040] The filtering device comprises a filtering box 17 fixed on the side frame 5, the filtering box 17 is composed of a lower filtering box 1701 and an upper filtering box 1702, the cross section of the upper filtering box 1702 is larger than that of the lower filtering box 1701, the lower opening of the upper filtering box 1702 is provided with a foreign matter outlet 1703 which is staggered with the upper opening of the lower filtering box 1701, the upper opening edge of the lower filtering box 1701 is provided with a rotating seat 18, the rotating seat 18 is rotatably provided with a filtering plate 19, the side wall of the lower filtering box 1701 and the upper filtering box 1702 towards the center of the rack 1 is a circular arc surface 1704, the circular arc surface 1704 is provided with a blocking strip 20 for the rotation of the filtering plate 19, the upper opening side wall of the filtering box 17 is rotatably provided with a dredging plate 21, the rotating shafts of the dredging plate 21 and the filtering plate 19 are coincident, the dredging plate 21 is provided with filtering holes, and the dredging plate 21 is provided with dredging nails 22 inserted into the filtering holes of the filtering plate 19.

[0041] The rotating shafts of the dredging plate 21 extend to the outside of the filtering box 17, and the rotating shafts of the dredging plate 21 are both provided with side plates 23, the end of the side plate 23 is provided with a sliding column 24, the sliding column 24 is inserted into a sliding groove 25, the two sliding grooves 25 are jointly provided with a connecting plate 26, the outer side wall of the filtering box 17 is provided with a sliding rod 27, the connecting plate 26 is slidably arranged in the sliding rod 27, the outside of the sliding rod 27 is sleeved with a spring 28, the two ends of the spring 28 are respectively connected with the connecting plate 26 and the lower end of the sliding rod 27, the upper end of the connecting plate 26 is provided with a push plate 29, and the push plate 29 is provided with a semicircular table 30 which is in contact with the circular ring 16.

[0042] The part of the filtering plate 19 located on the upper opening of the lower filtering box 1701 is provided with filtering holes, the part of the filtering plate 19 located above the foreign matter outlet 1703 is a solid plane, when the filtering plate 19 is in a horizontal state, the solid plane of the filtering plate 19 blocks the foreign matter outlet 1703.

[0043] The axis of the circular arc surface 1704 and the axis of the rotating seat 18 are coincident, when the filtering plate 19 and the dredging plate 21 rotate, the filtering plate 19 and the dredging plate 21 are both in contact with the circular arc surface 1704.

[0044] Specifically, in the original state, the filtering plate 19 is in a horizontal state, at this time, the filtering plate 19 is in contact with the blocking strip 20, preventing the filtering plate 19 from rotating clockwise, the filtering plate 19 blocks the foreign matter outlet 1703, and the dredging plate 21 is in a separated state with the filtering plate 19, the spring 28 is in the original length, the connecting plate 26 is in the lower position, and the semicircular table 30 is in a separated state with the circular ring 16. The sewage is discharged from the upper opening of the upper filtering box 1702, after the sewage is filtered by the filtering plate 19, the particulate matter is filtered to the upper part of the filtering plate 19, the remaining sewage enters the lower filtering box 1701, and then passes through the filtering holes of the dredging plate 21 and enters the reaction cylinder 2 from the outlet of the lower filtering box 1701.

[0045] When the slider 11 moves upward along the slide 1001 to the upper position, the ring 16 moves upward synchronously with the slider 11, in the process, the ring 16 is in contact with the semicircular table 30, and the semicircular table 30 slides on the ring 16, the ring 16 pushes the semicircular table 30 and the push plate 29 to move to the upper position, the connecting plate 26 and the sliding groove 25 move synchronously to the upper position, and the spring 28 is stretched. In the process of the sliding groove 25 rising, the sliding column 24 slides in the sliding groove 25, the side plate 23 rotates, the side plate 23 rotates synchronously with the dredging plate 21, in the process, the dredging nails 22 on the dredging plate 21 are inserted into the filter holes of the filter plate 19, which facilitates the dredging of the filter holes of the filter plate 19 and avoids the filter holes of the filter plate 19 being blocked. Finally, the dredging plate 21 pushes the filter plate 19 to rotate to the inclined state, so that the impurity outlet 1703 is separated from the filter plate 19, and the particulate matter slides out of the filter box 17 from the impurity outlet 1703. In the process of rotating the filter plate 19 and the dredging plate 21, the filter plate 19 and the dredging plate 21 are always in contact with the arc surface 1704, which ensures that the filter plate 19 effectively filters sewage.

[0046] The main shaft 13 is sequentially provided with a plurality of layers of blade assemblies from bottom to top, each layer of blade assembly includes three rotating tables 31 uniformly arranged on the side wall of the main shaft 13, a stirring blade 32 is rotationally arranged on the rotating table 31, and a short rod 33 is arranged on the rotating shaft of the stirring blade 32, the end portions of the short rods 33 in each vertical row are rotationally arranged with a connecting rod 34, the lower surface of the middle cylinder 14 is rotationally arranged with a sliding ring 35, three insertion plates 36 are uniformly arranged below the sliding ring 35, the three insertion plates 36 are used for being respectively inserted into the three rotating tables 31 in the uppermost layer, and the three insertion plates 36 are commonly connected with a sliding cylinder 37 which is slidingly arranged on the main shaft 13.

[0047] The end portion of the stirring blade 32 close to the rotating table 31 is a vertical surface 3201, and the upper half is an arc corner 3202.

[0048] Specifically, when the main shaft 13 is in the lower position, the stirring blades 32 are in the horizontal state due to their own gravity, at this time, the vertical surface 3201 is in contact with the inner side wall of the turntable 31, preventing the stirring blades 32 from rotating downward, ensuring that the stirring blades 32 remain in the horizontal state, and the connecting rod 34 is in the unfolded state, so when the main shaft 13 rotates, the stirring blades 32 and the connecting rod 34 simultaneously stir the sewage, and the main shaft 13 rotates synchronously with the sliding cylinder 37, the sliding cylinder 37 rotates with the insertion plate 36 and the sliding ring 35, and the sliding ring 35 rotates in the middle cylinder 14, so that the three insertion plates 36 always face the three stirring blades 32 on the uppermost layer. When the main shaft 13 rises, the three insertion plates 36 are inserted into the three turntables 31 on the uppermost layer, the insertion plate 36 and the corresponding stirring blade 32 are in contact, driving the stirring blade 32 to rotate on the turntable 31, so that the stirring blade 32 on the uppermost layer is rotated to the vertical state, and through the connecting rod 34 and the short rod 33, the power is transmitted to make all the stirring blades 32 rotate to the vertical state, so as to avoid the deposition of sludge on the stirring blades 32 during sedimentation, thereby avoiding the mixing of sludge from the stirring blades 32 into the clean water when the clean water is released.

[0049] The water discharge device comprises a liquid discharge pipe 38 arranged on the liquid outlet hole 202, and the outlet end of the liquid discharge pipe 38 is provided with a liquid discharge valve 39.

[0050] The inlet end of the liquid discharge pipe 38 is slidingly arranged in a sliding pipe 40, the bottom of the sliding pipe 40 is provided with a floating plate 41, the bottom of the sliding pipe 40 is provided with a liquid hole 4001, the upper end of the sliding pipe 40 is provided with a magnet 42, and the outer wall of the reaction cylinder 2 is provided with an electromagnet 43 for attracting the magnet 42.

[0051] Specifically, in the original state, the electromagnet 43 is started, and due to the attraction between the magnet 42 and the electromagnet 43, the sliding pipe 40 is in the upper position, the inlet end of the liquid discharge pipe 38 is in contact with the floating plate 41, and the outer wall of the liquid discharge pipe 38 blocks the liquid hole 4001, and the sewage enters the liquid discharge pipe 38 from the liquid hole 4001. When the clean water is released, the electromagnet 43 is turned off, the sliding pipe 40 slides downward due to its own gravity, and when the floating plate 41 contacts the sludge, the floating plate 41 and the sliding pipe 40 stop descending, the liquid discharge valve 39 is opened, and then the clean water above the sludge enters the sliding pipe 40, and then is discharged along the liquid discharge pipe 38. Since the floating plate 41 falls above the sludge, it can automatically adapt to the thickness of the sludge, ensuring the separation of clean water and sludge. Finally, the sludge valve 9 is opened, and the sludge can be released.

[0052] Working principle: in the original state, the boss 15 is located below the middle cylinder 14, and the boss 15 is in contact with the lower surface of the middle cylinder 14, spring 12 is in the stretched state, the slider 11 and the lower position of the main shaft 13, the stirring blade 32 is in the horizontal state due to its own gravity, at this time, the vertical surface 3201 is in contact with the inner wall of the turntable 31, which prevents the stirring blade 32 from rotating downward, ensures that the stirring blade 32 remains horizontal, and the connecting rod 34 is in the unfolded state. At this time, the filter plate 19 is in a horizontal state, the filter plate 19 is in contact with the baffle 20, which prevents the filter plate 19 from rotating clockwise, the filter plate 19 blocks the outlet 1703, and the filter plate 19 is in a separated state, the spring 28 is in the original length, the connecting plate 26 is in the lower position, the semicircular table 30 is separated from the ring 16. At the same time, the electromagnet 43 is in the open state, due to the attraction between the magnet 42 and the electromagnet 43, the sliding pipe 40 is in the upper position, the inlet end of the drain pipe 38 is in contact with the floating plate 41, the outer wall of the drain pipe 38 blocks the liquid hole 4001, preventing sewage from entering the drain pipe 38 from the liquid hole 4001.

[0053] When treating sewage, sewage is discharged from the upper opening of the upper filter box 1702, and after being filtered by the filter plate 19, large particles are filtered to the upper part of the filter plate 19, and the remaining sewage enters the lower filter box 1701, and then passes through the filter hole of the dredging plate 21, and then enters the reaction cylinder 2 from the outlet of the lower filter box 1701. Start the carbon source adding device, and add carbon source to the reaction cylinder 2 for denitrification, in this process, make the motor 4 rotate forward at low speed, transmit power through the middle cylinder 10 and the slider 11, make the main shaft 13 rotate, the main shaft 13 rotates synchronously with the stirring blade 32 and the connecting rod 34, and the stirring blade 32 and the connecting rod 34 simultaneously stir the sewage. Then close the carbon source adding device, make the motor 4 rotate forward at high speed, and start the oxygen feeder 8 to transport oxygen to the sewage, and the aerobic microorganisms degrade organic matter.

[0054] Finally, the motor 4 is reversed, driving the middle cylinder 10 and the main shaft 13 to reverse, when the boss 15 passes the lower outlet of the spiral channel 1402, the spring 12 provides a pulling force, making the boss 15 enter the spiral channel 1402, with the continuous reverse rotation of the middle cylinder 10 and the main shaft 13, the boss 15 slides up along the spiral channel 1402, the boss 15 moves up with the main shaft 13, the slider 11 slides up along the slide 1001, the spring 12 changes from the stretched state to the compressed state, then the boss 15 slides out of the upper outlet of the spiral channel 1402, the boss 15 contacts the upper surface of the middle cylinder 14, at this time the main shaft 13 moves to the upper position, the main shaft 13 is away from the bottom of the reaction cylinder 2, leaving space for the sedimentation of sludge. At the same time, the three inserts 36 are inserted into the three turntables 31 on the uppermost layer, the insert 36 contacts the corresponding stirring blade 32, driving the stirring blade 32 to rotate on the turntable 31, making the stirring blade 32 on the uppermost layer rotate to the vertical state, transmitting power through the connecting rod 34 and the short rod 33, making all the stirring blades 32 rotate to the vertical state, so as to avoid the sludge deposited on the stirring blade 32 when the sludge is settling, thereby avoiding the sludge falling from the stirring blade 32 and mixing into the clean water when the clean water is released. In this process, the circular ring 16 moves up synchronously with the slider 11, the circular ring 16 contacts the semicircular table 30, and the semicircular table 30 slides on the circular ring 16, the circular ring 16 pushes the semicircular table 30 and the push plate 29 to move to the upper position, the connecting plate 26 and the sliding groove 25 move to the upper position synchronously, and the spring 28 is stretched. In the process of the sliding groove 25 rising, the slide column 24 slides in the sliding groove 25, the side plate 23 rotates, and the side plate 23 rotates synchronously with the dredging plate 21. In this process, the dredging nails 22 on the dredging plate 21 are inserted into the filter holes of the filter plate 19, facilitating the dredging of the filter holes of the filter plate 19 and avoiding the filter holes of the filter plate 19 being blocked. Finally, the dredging plate 21 pushes the filter plate 19 to rotate to the inclined state, so that the impurity outlet 1703 is separated from the filter plate 19, and the particulate matter slides out of the filter box 17 from the impurity outlet 1703.

[0055] When the sludge is settled, the electromagnet 43 is turned off, the slide pipe 40 slides down due to its own gravity, and when the float plate 41 contacts the sludge, the float plate 41 and the slide pipe 40 stop descending. The liquid outlet valve 39 is opened, and then the clean water above the sludge enters the slide pipe 40, and then is discharged along the liquid outlet pipe 38. Since the float plate 41 falls on the sludge, it can automatically adapt to the thickness of the sludge, ensuring the separation of the clean water and the sludge. Finally, the sludge valve 9 is opened, and the sludge can be released.

[0056] When the motor 4 is running forward, the middle cylinder 10 rotates forward, and when the boss 15 passes the upper outlet of the spiral channel 1402, the spring 12 provides elastic force to make the boss 15 re-enter the spiral channel 1402, the boss 15 slides downward along the spiral channel 1402, the spring 12 changes from the compressed state to the stretched state, the boss 15 slides out of the lower outlet of the spiral channel 1402, and the boss 15 re-contacts with the lower surface of the middle cylinder 14, so that the device returns to the original state.

[0057] The above merely describes specific embodiments of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the basically same technical problem and realize the basically same technical effect is included in the protection scope of the present application.

Claims

1. A high-concentration, low-aeration integrated wastewater treatment device, comprising a frame (1), characterized in that: A reaction cylinder (2) is provided on the frame (1). A middle frame (3) is provided above the opening of the reaction cylinder (2). A motor (4) is provided on the middle frame (3). A stirring device is connected to the end of the rotating shaft of the motor (4). A side frame one (5) and a side frame two (6) are provided above the opening of the reaction cylinder (2) and on both sides of the middle frame (3). A filter device is provided on the side frame one (5). A carbon source connecting pipe (7) is provided on the side frame two (6). The carbon source connecting pipe (7) is connected to the carbon source adding device. An oxygen supply hole (201) and a liquid outlet hole (202) are provided on the side wall of the reaction cylinder (2). An oxygen supply machine (8) is provided on the oxygen supply hole (201). A water discharge device is provided on the liquid outlet hole (202). A mud discharge hole (203) is provided at the bottom of the reaction cylinder (2). A mud discharge valve (9) is provided on the mud discharge hole (203). The stirring device includes a middle cylinder (10) fixedly mounted on the rotating shaft of a motor (4). A slide rail (1001) is provided in the middle cylinder (10). A slider (11) is slidably mounted in the slide rail (1001), and a spring (12) is provided in the slide rail (1001). The two ends of the spring (12) are respectively connected to the top of the slider (11) and the top of the slide rail (1001). A main shaft (13) is provided on the lower surface of the slider (11). The main shaft (13) passes through the middle cylinder (10) and extends downwards to the reaction chamber (…). 2) At the bottom, the middle frame (3) is provided with a middle cylinder (14), the middle cylinder (14) is provided with a through hole (1401) in the middle, the main shaft (13) passes through the through hole (1401), the side wall of the through hole (1401) is provided with two spiral channels (1402), the side wall of the main shaft (13) is symmetrically provided with bosses (15) for passing through the spiral channels (1402), the side wall of the slider (11) is provided with a ring (16), and the outside of the ring (16) is fitted outside the middle cylinder (10).

2. The integrated wastewater treatment device with high concentration and low aeration according to claim 1, characterized in that: The filtration device includes a filter box (17) fixedly mounted on a side frame (5). The filter box (17) is composed of a lower filter box (1701) and an upper filter box (1702) connected together. The cross-sectional area of ​​the upper filter box (1702) is larger than that of the lower filter box (1701). The lower opening of the upper filter box (1702) is provided with a discharge port (1703) that is offset from the upper opening of the lower filter box (1701). The upper opening edge of the lower filter box (1701) is provided with a rotating seat (18). The rotating seat (18) is rotatably mounted with a filter plate (19). The sidewalls of the lower filter box (1701) and the upper filter box (1702) facing the center of the frame (1) are arc surfaces (1704). The arc surfaces (1704) are provided with baffles (20) for the rotation of the filter plate (19). A dredging plate (21) is rotatably provided between the upper opening sidewalls of the filter box (17), and the dredging plate (21) and the filter plate (19) have the same rotation axis. The dredging plate (21) is provided with filter holes, and the dredging plate (21) is provided with dredging nails (22) for inserting into the filter holes of the filter plate (19).

3. The integrated wastewater treatment device with high concentration and low aeration according to claim 2, characterized in that: The two ends of the shaft of the unblocking plate (21) extend to the outside of the filter box (17), and both ends of the shaft of the unblocking plate (21) are provided with side plates (23). The end of the side plate (23) is provided with a sliding column (24). The sliding column (24) is inserted into the sliding groove (25). A connecting plate (26) is provided between the two sliding grooves (25). A sliding rod (27) is provided on the outer wall of the filter box (17). The connecting plate (26) is slidably provided in the sliding rod (27). A second spring (28) is sleeved on the outside of the sliding rod (27). The two ends of the second spring (28) are respectively connected to the lower ends of the connecting plate (26) and the sliding rod (27). A push plate (29) is provided on the upper end of the connecting plate (26). A semi-circular frustum (30) that contacts the ring (16) is provided on the push plate (29).

4. The integrated wastewater treatment device with high concentration and low aeration according to claim 3, characterized in that: The filter plate (19) has filter holes at the opening on the lower filter box (1701), and the filter plate (19) above the impurity outlet (1703) is a solid plane.

5. The integrated wastewater treatment device with high concentration and low aeration according to claim 4, characterized in that: The axis of the arc surface (1704) coincides with the axis of the rotating seat (18).

6. The integrated wastewater treatment device with high concentration and low aeration according to claim 5, characterized in that: The main shaft (13) is provided with multiple layers of blade assemblies from bottom to top. Each layer of blade assembly includes three turntables (31) evenly arranged on the side wall of the main shaft (13). A stirring blade (32) is rotatably arranged on the turntable (31), and a short rod (33) is provided on the rotating shaft of the stirring blade (32). The ends of the short rods (33) in each vertical row are rotatably provided with connecting rods (34). The lower surface of the middle cylinder (14) is rotatably arranged on a slip ring (35). Three insert plates (36) are evenly arranged below the slip ring (35). The three insert plates (36) are used to be inserted into the three turntables (31) at the top layer respectively, and the three insert plates (36) are connected to a slide cylinder (37) and slidably arranged on the main shaft (13).

7. The integrated wastewater treatment device with high concentration and low aeration according to claim 6, characterized in that: The lower half of the end of the stirring blade (32) near the turntable (31) is vertical (3201), and the upper half is arc-shaped (3202).

8. The integrated wastewater treatment device with high concentration and low aeration according to claim 7, characterized in that: The drainage device includes a drain pipe (38) provided on the outlet hole (202), and a drain valve (39) is provided at the outlet end of the drain pipe (38).

9. The integrated wastewater treatment device with high concentration and low aeration according to claim 8, characterized in that: The inlet end of the drain pipe (38) is slidably disposed on the slide pipe (40). The bottom of the slide pipe (40) is provided with a float plate (41) and a liquid hole (4001) is provided at the bottom of the slide pipe (40). A magnet (42) is provided at the upper end of the slide pipe (40). An electromagnet (43) for attracting the magnet (42) is provided on the outer wall of the reaction cylinder (2).

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