A modular multi-stage coordinated water treatment device and method

Abstract

The present invention discloses a modular multi-stage coordinated water treatment device and method, which relate to the technical field of drinking water treatment. The water treatment device comprises a biological slow filter, a grid flocculation mechanism, a mechanical coagulation mechanism, an inclined tube sedimentation unit and an integrated membrane filtration mechanism. The modules work together to form a five-stage water treatment process. The integrated membrane filtration mechanism uses ultrafiltration membrane cross-flow filtration and aeration, and cooperates with the automatically adjustable spiral guide vanes of the cleaning guide mechanism to regulate the water flow and the bubble shear force of aeration, thereby reducing the adhesion of pollutants to the ultrafiltration membrane, thereby extending the cleaning cycle and increasing the amount of clean water produced in a single filtration cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water treatment, and in particular to a modular multi-stage coordinated water treatment device and method. Background Art

[0002] In scenarios such as emergency water supply, centralized water supply in villages and towns, and industrial reuse water under complex water source conditions, sudden water quality fluctuations are prone to occur when water treatment equipment is used to treat water, resulting in a sudden increase in process load, and thus unstable effluent water quality.

[0003] Traditional water treatment devices, when using ultrafiltration membranes for water treatment, have weak anti-pollution capabilities. When faced with complex water sources, dirt easily forms on the membrane surface, causing rapid flux decay. Backwash pumps are usually used to self-clean the ultrafiltration membrane, resulting in shutdowns and affecting water treatment efficiency. Traditional water treatment devices are unable to make real-time adjustments based on the sewage inflow and water quality fluctuations, resulting in poor sewage treatment effects and affecting the amount of clean water produced during the filtration cycle after a single cleaning. Summary of the Invention

[0004] The object of the present invention is to provide a modular multi-stage coordinated water treatment device and method to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A modular multi-stage coordinated water treatment device, the water treatment device includes a treatment box, a support seat, a grid flocculation mechanism, a mechanical coagulation mechanism, an inclined tube, an integrated membrane filtration mechanism, a lifting mechanism, a cleaning guide mechanism and a mud discharge pipe. The treatment box is fixedly connected to the support seat, the treatment box is provided with a biological slow filter, the treatment box is provided with a No. 1 treatment tank, the grid flocculation mechanism is placed in the No. 1 treatment tank, the mechanical coagulation mechanism is fixedly connected to the treatment box, the treatment box is provided with a No. 2 treatment tank, the inclined tube is placed in the No. 2 treatment tank, the treatment box is provided with a No. 3 treatment tank, the lifting mechanism is fixedly connected to the integrated membrane filtration mechanism, several cleaning guide mechanisms are provided, several cleaning guide mechanisms are fixedly connected to the lifting mechanism, and the mud discharge pipe is fixedly connected to the treatment box.

[0007] The treatment box is installed on the support base, and the bottom of the support base is provided with wheels to facilitate the movement of the device. The treatment box is provided with a biological slow filter, and the water is preliminarily treated by filling the biological slow filter filler in the biological slow filter. The preliminarily treated water is further treated by the grid flocculation mechanism in the No. 1 treatment tank, and then the coagulant and water are mixed by the mechanical coagulation mechanism to remove the suspended matter in the water, and then the solid particles in the water are settled by the inclined pipe in the No. 2 treatment tank. Finally, the clean water is filtered out by the integrated membrane filtration mechanism. At the same time, the water flow is cleaned by the cleaning guide mechanism. The water flow is guided to generate a spiral, thereby generating shear force on the filter membrane, thereby reducing the attachment of impurities to the filter membrane. At the same time, the cleaning guide mechanism can adjust the magnitude of the shear force generated by the water flow in real time according to the water flow, avoiding sudden fluctuations in water quality and affecting the filtration effect. The cleaning guide mechanism is moved up and down by the lifting mechanism, cooperating with the backwash of the integrated membrane filtration mechanism to clean the filter membrane, thereby enhancing the cleaning effect of the filter membrane and reducing the residual pollutants, thereby extending the self-cleaning and manual disassembly and cleaning cycle of the device, thereby improving the efficiency of water treatment, and regularly discharging sludge through the sludge pipe.

[0008] Furthermore, the integrated membrane filtration mechanism includes a fixed seat, an ultrafiltration membrane, a water collecting pipe, a water production pump, a backwash pump, an air pump and an air outlet pipe. Several ultrafiltration membranes are provided, the fixed seat and the several ultrafiltration membranes are fixedly connected, the several ultrafiltration membranes are connected to the water collecting pipe, the water production pump is connected to the water collecting pipe, the backwash pump is connected to the water collecting pipe, several air outlet pipes are provided, the air pump is connected to the several air outlet pipes, and the several air outlet pipes are placed at the bottom of the ultrafiltration membrane.

[0009] A number of plate-type ceramic ultrafiltration membranes are fixed by a fixing seat, and the water production pump is connected to the water collection pipe, and the water collection pipe is connected to a number of ultrafiltration membrane pipes, so that the water production pump can extract the water filtered by the ultrafiltration membrane, thereby forming a pressure difference to make the water flow from bottom to top, thereby forming cross-flow filtration, and the air pump is connected to the air outlet pipe at the bottom of the ultrafiltration membrane to aerate the air outlet pipe, thereby generating bubbles. The rising bubbles flush the filter membrane and reduce the impurities adhering to the filter membrane. When the ultrafiltration membrane needs to be cleaned, the backwash pump is used to make clean water return to the ultrafiltration membrane from the water collection pipe, so that water flows out from the inside of the ultrafiltration membrane for cleaning.

[0010] Furthermore, the cleaning guide mechanism includes an intercepting rod, a guide unit, a brush roller, a baffle, a No. 2 slider, an annular spring, a guide rod and an adjustment unit. The intercepting rod is fixedly connected to the lifting mechanism, the intercepting rod is provided with a number of No. 1 through holes, the guide unit is provided with a number of, and the several guide units are slidingly connected to the No. 1 through holes. The intercepting rod is provided with an arc groove, the guide rod is placed in the arc groove, the annular spring is sleeved outside the guide rod, the No. 2 slider is slidingly connected to the guide rod, the baffle is fixedly connected to the No. 2 slider 85, there are four adjustment units, there are two brush rollers, and both ends of each brush roller are rotatably connected to the adjustment unit.

[0011] Through the intercepting rod, water is made to flow through several No. 1 through holes on the intercepting rod, and through the guide unit, the flowing water and bubbles are made to generate spiral rotation, thereby forming a lateral shear force on the ultrafiltration membrane, flushing the pollutants on its surface, reducing the deposition of pollutants on the membrane surface, and thus reducing the membrane pollution rate. By setting a baffle, the baffle can slide along the arc groove under the action of the guide rod. When the treated water quality is poor, the filtration speed is slow, and the pressure difference is small, the water only flows through the No. 1 through hole, ensuring that there is sufficient flow rate so that the water flow can generate sufficient shear force. By arranging brush rollers on both sides of the intercepting rod, after completing one or more filtrations, the lifting mechanism is started to move it up and down to clean the membrane. The tension of the brush roller is adjusted by the adjustment unit 88 in conjunction with the sliding baffle to ensure the cleaning effect.

[0012] Furthermore, the guide unit includes a guide plate, a fixed block, a slider No. 1 and a return spring No. 1. The guide plate and the fixed block are fixedly connected, the fixed block and the slider No. 1 are fixedly connected, the intercepting rod is provided with a sliding groove No. 1, the slider No. 1 and the sliding groove No. 1 are slidingly connected, the return spring No. 1 is placed in the sliding groove No. 1, the guide plate is spiral, and the pitch of the guide plate gradually increases from bottom to top.

[0013] It is fixed by the guide plate and the fixed block, and the two sides of the fixed block are fixed to the two No. 1 sliders. The No. 1 return spring placed in the No. 1 sliding groove increases its preload force so that when the water flow becomes larger, the guide plate can slide upward, thereby automatically adjusting according to the water flow. The guide plate is spiral, the pitch of the guide plate gradually increases, and the number of spiral turns gradually increases from bottom to top, thereby balancing the lateral shear force formed and avoiding damage to the membrane caused by excessive shear force.

[0014] Furthermore, the lifting mechanism includes a No. 1 motor, a screw, a No. 4 slider and a guide rail. The No. 1 motor is fixedly connected to the fixed seat, the output end of the No. 1 motor is fixedly connected to the screw, two No. 4 sliders are provided, the two No. 4 sliders are fixedly connected to the intercepting rod, one No. 4 slider is provided with a thread groove, the thread groove and the screw cooperate, and the guide rail and the No. 4 slider are slidably connected.

[0015] The output end of motor No. 1 is fixed to the screw rod so that motor No. 1 can drive the screw rod to rotate. Two No. 4 sliders are fixed to the intercepting rod to support the intercepting rod. A No. 4 slider is provided with a thread groove, and the thread groove cooperates with the screw rod so that slider No. 4 can slide vertically up and down along the guide rail.

[0016] Furthermore, the adjustment unit includes a No. 3 slider and a No. 2 return spring, the baffle is provided with an arc-shaped surface, the No. 3 slider and the brush roller are rotatably connected, the No. 4 slider is provided with a No. 2 sliding groove, the No. 2 return spring is placed in the No. 2 sliding groove, and the No. 3 slider and the No. 2 sliding groove are slidably connected.

[0017] The No. 2 sliding groove is provided through the No. 4 slider, so that the No. 3 slider can slide in the No. 2 sliding groove, so that the No. 4 slider drives the No. 3 slider and the brush roller to move up and down to clean the membrane. When there are more pollutants accumulated on the membrane and the resistance is greater, the baffle slides downward on the curved surface and contacts the brush roller when rising, pushing the brush roller to move, thereby adjusting the cleaning effect of the brush roller on the membrane, and the brush roller can be reset by the No. 2 reset spring.

[0018] Furthermore, the grid flocculation mechanism includes a grid plate, a flocculator and a base. The grid plate is placed in the No. 1 treatment tank. The flocculator is spherical and has an empty slot. The flocculator has a No. 2 through hole. The No. 2 through hole is connected to the empty slot. The base is fixedly connected to the treatment tank.

[0019] It is placed in the No. 1 treatment tank through a mesh plate, and the base and the treatment box are fixed so that the flocculator is between the mesh plate and the base. The flocculator is located in the middle of the No. 1 treatment tank. The flocculator is spherical, so that when the water flows through the flocculator, it is guided by the spherical surface to form a vortex. Part of the water flows into the empty tank through the No. 2 through hole, generating secondary flow inside the empty tank. At the same time, it collides with the water flowing in from other No. 2 through holes, increasing the probability of collision between particles in the water and forming flocs.

[0020] Furthermore, the mechanical coagulation mechanism includes a No. 2 motor, a transmission shaft and a stirring paddle. The No. 2 motor is fixedly connected to the processing box, the output end of the No. 2 motor is fixedly connected to the transmission shaft, the stirring paddle is fixedly connected to the transmission shaft, and the processing box is provided with a No. 3 processing tank.

[0021] The No. 2 motor is fixed on the treatment box, and the output end of the No. 2 motor is fixed to the transmission shaft, so that the No. 2 motor drives the transmission shaft to rotate, and the transmission shaft drives the stirring paddle to rotate, thereby stirring the water in the No. 3 treatment tank, mixing it with the coagulant, and making the flocs larger.

[0022] Furthermore, the inclined tube is honeycomb-shaped.

[0023] The honeycomb-shaped inclined tubes can be used to divide the sedimentation tank into multiple small units, thereby increasing the sedimentation area. Through the upward flow of water, flocs and particles settle under the action of gravity and the inclined tubes, thus achieving efficient solid-liquid separation.

[0024] The water treatment method includes the following steps:

[0025] S1: inject raw water into the biological slow filter and perform preliminary treatment on the water by filling the biological slow filter with biological slow filter fillers;

[0026] S2: The water flows through the flocculator to form a vortex, and part of the water flows into the empty tank. The other water flows in the empty tank collide with each other, causing the particles in the water to collide, thereby forming flocs and further treating the water.

[0027] S3: By adding coagulant to the water in the No. 3 treatment tank, the No. 2 motor drives the stirring paddle to rotate, thereby mixing it with the coagulant and making the flocs larger;

[0028] S4: Through the honeycomb-shaped inclined tubes in the No. 2 treatment tank, flocs and particles in the upward-flowing water flow are settled under the action of gravity and the inclined tubes, thereby achieving efficient solid-liquid separation;

[0029] S5: The water production pump can extract the water filtered by the ultrafiltration membrane and create a pressure difference, so that the raw water flows from bottom to top, thus forming cross-flow filtration. The spiral guide plate causes the flowing water and bubbles to produce a spiral rotation, thereby forming a lateral shear force on the ultrafiltration membrane, flushing the pollutants on its surface, reducing the adhesion of pollutants, and allowing the ultrafiltration membrane to produce excessive clean water in a single filtration cycle;

[0030] S6: The backwash pump allows water to flow out of the ultrafiltration membrane, thereby cleaning the pollutants blocked in the filter pores, and the lifting mechanism drives the brush roller to clean the surface of the ultrafiltration membrane.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. Through the biological slow filter, grid flocculation mechanism, mechanical coagulation mechanism, inclined tube sedimentation unit and integrated membrane filtration mechanism, each module works together to form a five-stage water treatment process, improving the efficiency of water treatment and ensuring the stability of treatment.

[0033] 2. The spiral guide vane that can be adjusted according to the water flow regulates the water flow and the bubble shear force of aeration, reducing the adhesion of pollutants to the ultrafiltration membrane, thereby extending the cleaning cycle and increasing the amount of clean water produced in a single filtration cycle.

[0034] 3. The spherical flocculator forms a vortex in the water flow, and part of the water flows into the empty slot through the No. 2 through-hole. The water flows into the empty slot and other No. 2 through-holes collide with each other, increasing the probability of collision between particles in the water and thus improving the efficiency of floc formation.

[0035] 4. The upward-flowing inclined tube sedimentation tank and the honeycomb inclined tube are combined to achieve efficient solid-liquid separation.

[0036] 5. A number of plate-type ceramic ultrafiltration membranes are used to form cross-flow filtration to improve the efficiency of water treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a structural schematic diagram of the grid flocculation mechanism of the present invention;

[0039] Figure 3 This is a schematic structural diagram of the integrated membrane filtration mechanism of the present invention;

[0040] Figure 4 yes Figure 3 A magnified view of a part A;

[0041] Figure 5 Schematic diagram of the structure of the air outlet pipe of the present invention;

[0042] Figure 6 yes Figure 3 A magnified view of a part B;

[0043] Figure 7 It is a structural schematic diagram of the cleaning guide mechanism of the present invention;

[0044] Figure 8 Schematic diagram of the structure of the regulating unit of the present invention;

[0045] Figure 9 It is a structural schematic diagram of the guide unit of the present invention;

[0046] Figure 10 Schematic diagram of the structure of the flocculator of the present invention;

[0047] Figure 11 It is a structural schematic diagram of the inclined tube of the present invention.

[0048] In the figure: 1. Treatment box; 11. Biological slow filter; 12. Treatment tank No. 1; 13. Treatment tank No. 2; 14. Treatment tank No. 3; 2. Support base; 3. Grid flocculation mechanism; 31. Grid plate; 32. Flocculator; 321. Empty tank; 322. Through hole No. 2; 33. Base; 4. Mechanical coagulation mechanism; 41. Motor No. 2; 42. Drive shaft; 43. Agitator; 5. Inclined tube; 6. Integrated membrane filtration mechanism; 61. Fixed base; 62. Ultrafiltration membrane; 63. Water collection pipe; 64. Water production pump; 65. Backwash pump; 66. Air pump; 67. Exhaust pipe; 7. Lifting mechanism; 71. Motor No. 1 ;72. Screw;73. Slider No. 4;731. Threaded groove;732. Sliding groove No. 2;74. Guide rail;8. Cleaning guide mechanism;81. Intercepting rod;811. Through hole No. 1;812. Arc groove;813. Sliding groove No. 1;82. Guide unit;821. Guide plate;822. Fixed block;823. Slider No. 1;824. Return spring No. 1;83. Brush roller;84. Baffle;841. Arc surface;85. Slider No. 2;86. Annular spring;87. Guide rod;88. Adjustment unit;881. Slider No. 3;882. Return spring No. 2;9. Mud discharge pipe. DETAILED DESCRIPTION

[0049] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0050] Example: Figures 1-4 As shown, the present invention provides a modular multi-stage coordinated water treatment device and method technical solution, a modular multi-stage coordinated water treatment device, the water treatment device includes a treatment box 1, a support seat 2, a grid flocculation mechanism 3, a mechanical coagulation mechanism 4, an inclined tube 5, an integrated membrane filtration mechanism 6, a lifting mechanism 7, a cleaning guide mechanism 8 and a mud discharge pipe 9, the treatment box 1 and the support seat 2 are fixedly connected, the treatment box 1 is provided with a biological slow filter 11, the treatment box 1 is provided with a No. 1 treatment tank 12, the grid flocculation mechanism 3 is placed in the No. 1 treatment tank 12, the mechanical coagulation mechanism 4 is fixedly connected to the treatment box 1, the treatment box 1 is provided with a No. 2 treatment tank 13, the inclined tube 5 is placed in the No. 2 treatment tank 13, the treatment box 1 is provided with a No. 3 treatment tank 14, the lifting mechanism 7 and the integrated membrane filtration mechanism 6 are fixedly connected, there are several cleaning guide mechanisms 8, several cleaning guide mechanisms 8 are fixedly connected to the lifting mechanism 7, and the mud discharge pipe 9 is fixedly connected to the treatment box 1.

[0051] The treatment box 1 is installed on the support base 2, and the bottom of the support base 2 is provided with wheels to facilitate the movement of the device. The treatment box 1 is provided with a biological slow filter 11, and the water is preliminarily treated by filling the biological slow filter filler in the biological slow filter 11. The preliminarily treated water is further treated by the grid flocculation mechanism 3 in the first treatment tank 12, and then the coagulant and water are mixed by the mechanical coagulation mechanism 4 to remove the suspended matter in the water, and then the solid particles in the water are settled by the inclined pipe 5 in the second treatment tank 13. Finally, the clean water is filtered out by the integrated membrane filtration mechanism 6. At the same time, the water is filtered out by the cleaning guide The mechanism 8 guides the water flow, causing the water flow to spiral, thereby causing the water flow to generate shear force on the filter membrane, thereby reducing the attachment of impurities to the filter membrane. At the same time, the cleaning guide mechanism 8 can adjust the magnitude of the shear force generated by the water flow in real time according to the water flow, avoiding sudden fluctuations in water quality and affecting the filtration effect. The cleaning guide mechanism 8 is moved up and down by the lifting mechanism 7, cooperating with the backwash of the integrated membrane filtration mechanism 6 to clean the filter membrane, thereby enhancing the cleaning effect of the filter membrane and reducing the residual pollutants, thereby extending the self-cleaning and manual disassembly and cleaning cycle of the device, thereby improving the efficiency of water treatment, and regularly discharging sludge through the sludge discharge pipe 9.

[0052] like Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the integrated membrane filtration mechanism 6 includes a fixed seat 61, an ultrafiltration membrane 62, a water collecting pipe 63, a water production pump 64, a backwash pump 65, an air pump 66 and an air outlet pipe 67. There are several ultrafiltration membranes 62, the fixed seat 61 and the several ultrafiltration membranes 62 are fixedly connected, the several ultrafiltration membranes 62 are connected to the water collecting pipe 63 through a pipeline, the water production pump 64 is connected to the water collecting pipe 63 through a pipeline, the backwash pump 65 is connected to the water collecting pipe 63 through a pipeline, there are several air outlet pipes 67, the air pump 66 is connected to the several air outlet pipes 67 through a pipeline, and the several air outlet pipes 67 are placed at the bottom of the ultrafiltration membrane 62.

[0053] A plurality of plate-type ceramic ultrafiltration membranes 62 are fixed by a fixing seat 61, and are connected to a water collecting pipe 63 through a water production pump 64. The water collecting pipe 63 is connected to a plurality of ultrafiltration membranes 62 through pipes, so that the water production pump 64 can extract the water filtered by the ultrafiltration membrane 62, thereby forming a pressure difference so that the water flows from bottom to top, thereby forming a cross-flow filtration. The air pump 66 is connected to the air outlet pipe 67 at the bottom of the ultrafiltration membrane 62, so that the air outlet pipe 67 is aerated to generate bubbles. The rising bubbles flush the filter membrane and reduce the impurities adhering to the filter membrane. When the ultrafiltration membrane 62 needs to be cleaned, the backwash pump 65 is used to make clean water return to the ultrafiltration membrane 62 from the water collecting pipe 63, so that water flows out from the inside of the ultrafiltration membrane 62, thereby cleaning.

[0054] like Figure 7 and Figure 8As shown, the cleaning guide mechanism 8 includes an intercepting rod 81, a guide unit 82, a brush roller 83, a baffle 84, a No. 2 slider 85, an annular spring 86, a guide rod 87 and an adjusting unit 88. The intercepting rod 81 is fixedly connected to the lifting mechanism 7. The intercepting rod 81 is provided with a number of No. 1 through holes 811. The guide unit 82 is provided with a number of No. 1 through holes 811. The several guide units 82 are slidingly connected to the No. 1 through holes 811. The intercepting rod 81 is provided with an arc groove 812. The guide rod 87 is placed in the arc groove 812. The annular spring 86 is sleeved on the outside of the guide rod 87. The No. 2 slider 85 is slidingly connected to the guide rod 87. The baffle 84 is fixedly connected to the No. 2 slider 85. There are four adjusting units 88 and two brush rollers 83. The two ends of each brush roller 83 are respectively rotatably connected to the adjusting unit 88.

[0055] Through the intercepting rod 81, water flows through several No. 1 through holes 811 on the intercepting rod 81, and through the guide unit 82, the flowing water and bubbles are caused to generate spiral rotation, thereby forming a lateral shear force on the ultrafiltration membrane 62, flushing the pollutants on its surface, reducing the deposition of pollutants on the membrane surface, and thus reducing the membrane pollution rate. By setting a baffle 84, the baffle 84 can slide along the arc groove 812 under the action of the guide rod 87. When the treated water quality is poor, the filtration speed is slow, and the pressure difference is small, the water only flows through the No. 1 through hole 811, ensuring that there is sufficient flow rate so that the water flow can generate sufficient shear force. By arranging brush rollers 83 on both sides of the intercepting rod 81, after completing one or more filtrations, the lifting mechanism 7 is started to move it up and down to clean the membrane, and the tension of the brush roller 83 is adjusted by the adjustment unit 88 in conjunction with the sliding baffle 84 to ensure the cleaning effect.

[0056] like Figure 9 As shown, the guide unit 82 includes a guide plate 821, a fixed block 822, a slider No. 1 823 and a return spring No. 1 824. The guide plate 821 and the fixed block 822 are fixedly connected, and the fixed block 822 and the slider No. 1 823 are fixedly connected. The intercepting rod 81 is provided with a sliding groove No. 1 813. The slider No. 1 823 and the sliding groove No. 1 813 are slidingly connected. The return spring No. 1 824 is placed in the sliding groove No. 1 813. The guide plate 821 is spiral, and the pitch of the guide plate 821 gradually increases from bottom to top.

[0057] It is fixed by the guide plate 821 and the fixed block 822, and the two sides of the fixed block 822 are fixed by two No. 1 sliders 823. The pre-tightening force is increased by the No. 1 return spring 824 placed in the No. 1 sliding groove 813, so that when the water flow becomes larger, the guide plate 821 can slide upward, thereby automatically adjusting according to the water flow. The guide plate 821 is spiral, and the pitch of the guide plate 821 gradually increases, so that the number of spiral turns gradually increases from bottom to top, thereby balancing the lateral shear force formed therein and avoiding damage to the membrane caused by excessive shear force.

[0058] like Figure 4 and Figure 6 As shown, the lifting mechanism 7 includes a No. 1 motor 71, a screw 72, a No. 4 slider 73 and a guide rail 74. The No. 1 motor 71 is fixedly connected to the fixed seat 61, the output end of the No. 1 motor 71 is fixedly connected to the screw 72, two No. 4 sliders 73 are provided, the two No. 4 sliders 73 are fixedly connected to the intercepting rod 81, and one No. 4 slider 73 is provided with a threaded groove 731, the threaded groove 731 cooperates with the screw 72, and the guide rail 74 is slidably connected to the No. 4 slider 73.

[0059] The output end of the No. 1 motor 71 is fixed to the screw 72 so that the No. 1 motor 71 can drive the screw 72 to rotate. The two No. 4 sliders 73 are fixed to the intercepting rod 81 to support the intercepting rod 81. A No. 4 slider 73 is provided with a thread groove 731, and the thread groove 731 cooperates with the screw 72 so that the No. 4 slider 73 can slide vertically up and down along the guide rail 74.

[0060] like Figure 7 and Figure 8 As shown, the adjustment unit 88 includes a No. 3 slider 881 and a No. 2 return spring 882, the baffle 84 is provided with an arc surface 841, the No. 3 slider 881 and the brush roller 83 are rotatably connected, the No. 4 slider 73 is provided with a No. 2 sliding groove 732, the No. 2 return spring 882 is placed in the No. 2 sliding groove 732, and the No. 3 slider 881 and the No. 2 sliding groove 732 are slidably connected.

[0061] The No. 2 sliding groove 732 is provided on the No. 4 slider 73, so that the No. 3 slider 881 can slide in the No. 2 sliding groove 732, so that the No. 4 slider 73 drives the No. 3 slider 881 and the brush roller 83 to move up and down to clean the membrane. When there are more pollutants accumulated on the membrane and the resistance is greater, the baffle 84 slides downward when rising, and the curved surface 841 contacts the brush roller 83, pushing the brush roller 83 to move, thereby adjusting the cleaning effect of the brush roller 83 on the membrane, and the brush roller 83 can be reset by the No. 2 reset spring 882.

[0062] like Figure 2 and Figure 10 As shown, the grid flocculation mechanism 3 includes a grid plate 31, a flocculator 32 and a base 33. The grid plate 31 is placed in the No. 1 treatment tank 12. The flocculator 32 is spherical. The flocculator 32 is provided with an empty groove 321. The flocculator 32 is provided with a No. 2 through hole 322. The No. 2 through hole 322 is connected to the empty groove 321. The base 33 is fixedly connected to the treatment box 1.

[0063] The mesh plate 31 is placed in the No. 1 treatment tank 12, and the base 33 and the treatment box 1 are fixed so that the flocculator 32 is between the mesh plate 31 and the base 33. The flocculator 32 is located in the middle of the No. 1 treatment tank 12. The flocculator 32 is spherical, so that when the water flows through the flocculator 32, it is guided by the spherical surface to form a vortex. Part of the water flows into the empty tank 321 through the No. 2 through hole 322, generating secondary flow inside the empty tank 321. At the same time, it collides with the water flowing in from the other No. 2 through hole 322, increasing the probability of collision of particles in the water and forming flocs.

[0064] like Figure 2 As shown, the mechanical coagulation mechanism 4 includes a No. 2 motor 41, a transmission shaft 42 and a stirring paddle 43. The No. 2 motor 41 is fixedly connected to the processing box 1, the output end of the No. 2 motor 41 is fixedly connected to the transmission shaft 42, the stirring paddle 43 is fixedly connected to the transmission shaft 42, and the processing box 1 is provided with a No. 3 processing tank 14.

[0065] By fixing the No. 2 motor 41 on the treatment box 1, the output end of the No. 2 motor 41 and the transmission shaft 42 are fixed, so that the No. 2 motor 41 drives the transmission shaft 42 to rotate, and the transmission shaft 42 drives the stirring paddle 43 to rotate, thereby stirring the water in the No. 3 treatment tank 14, mixing it with the coagulant, and making the flocs larger.

[0066] like Figure 11 As shown, the inclined tube 5 is honeycomb-shaped.

[0067] The honeycomb-shaped inclined tubes 5 divide the sedimentation tank into multiple small units, thereby increasing the sedimentation area. Through the upward flow of water, flocs and particles settle under the action of gravity and the inclined tubes 5, thereby achieving efficient solid-liquid separation.

[0068] The water treatment method includes the following steps:

[0069] S1: injecting raw water into the biological slow filter 11, and performing preliminary treatment on the water by filling the biological slow filter 11 with biological slow filter fillers;

[0070] S2: The water flows through the flocculator 32 to form a vortex. Part of the water flows into the empty slot 321. The other water flows in the empty slot 321 collide with each other, causing particles in the water to collide, thereby forming flocs and further treating the water.

[0071] S3: by adding coagulant to the water in the No. 3 treatment tank 14, the No. 2 motor 41 drives the stirring paddle 43 to rotate, thereby mixing the water with the coagulant and making the flocs larger;

[0072] S4: Through the honeycomb-shaped inclined tubes 5 in the second treatment tank 13, the flocs and particles in the upward-flowing water flow are settled under the action of gravity and the inclined tubes 5, thereby achieving efficient solid-liquid separation;

[0073] S5: The water production pump 64 extracts the water filtered by the ultrafiltration membrane 62 and creates a pressure difference, causing the raw water to flow from bottom to top, thus forming cross-flow filtration. The spiral guide plate 821 causes the flowing water and bubbles to rotate in a spiral, thereby generating a transverse shear force on the ultrafiltration membrane 62, flushing the pollutants on its surface and reducing the adhesion of pollutants, so that the ultrafiltration membrane 62 can produce more clean water in a single filtration cycle;

[0074] S6: The backwash pump 65 causes water to flow out of the ultrafiltration membrane 62 to clean the pollutants blocked in the filter holes. The lifting mechanism 7 drives the brush roller 83 to clean the surface of the ultrafiltration membrane 62.

[0075] Working principle: inject raw water into biological slow filter 11, fill biological slow filter filler in biological slow filter 11 to preliminarily treat water, preliminarily treated water flows into No. 1 treatment tank 12, passes through flocculator 32, makes impurities in water form flocs, and then flows into No. 3 treatment tank 14, drives stirring paddle 43 to rotate by No. 2 motor 41, makes water and coagulant mix, makes flocs bigger, water flows into from the bottom of No. 2 treatment tank 13, makes water flow upward, makes flocs and particulate matter in water settle to the bottom of No. 2 treatment tank 13 under the action of gravity and inclined tube 5, and can extract water filtered out of ultrafiltration membrane 62 through water production pump 64, and forms pressure difference, so that raw water flows from bottom to top, thus forming cross flow. Filtration, air is supplied to the outlet pipe 67 at the bottom of the ultrafiltration membrane 62 through the air pump 66, thereby performing aeration and generating bubbles. At the same time, the spiral guide plate 821 that is automatically adjusted according to the water flow is used to make the water flow and the bubbles rotate in a spiral, thereby forming a lateral shear force on the ultrafiltration membrane 62, flushing the pollutants on its surface, reducing the deposition of pollutants on the membrane surface, flushing the filter membrane, and reducing the attachment of impurities to the filter membrane. When the ultrafiltration membrane 62 needs to be cleaned, the backwash pump 65 is used to make clean water return to the ultrafiltration membrane 62 from the water collection pipe 63, so that water flows out from the inside of the ultrafiltration membrane 62, and the lifting mechanism 7 drives the brush roller 83 to brush the surface of the ultrafiltration membrane 62, thereby cleaning the ultrafiltration membrane 62.

[0076] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A modular multi-stage coordinated water treatment device, characterized by: The water treatment device comprises a treatment box (1), a support base (2), a grid flocculation mechanism (3), a mechanical coagulation mechanism (4), an inclined tube (5), an integrated membrane filtration mechanism (6), a lifting mechanism (7), a cleaning guide mechanism (8) and a mud discharge pipe (9), wherein the treatment box (1) and the support base (2) are fixedly connected, the treatment box (1) is provided with a biological slow filter (11), the treatment box (1) is provided with a No. 1 treatment tank (12), the grid flocculation mechanism (3) is placed in the No. 1 treatment tank (12), the mechanical coagulation mechanism (4) and the treatment box (1) are fixedly connected to the support base (2), the treatment box (1) is provided with a biological slow filter (11), the treatment box (1) is provided with a No. 1 treatment tank (12), the grid flocculation mechanism (3) is placed in the No. 1 treatment tank (12), the mechanical coagulation mechanism (4) and the treatment box (1) are fixedly connected to the support base (2), the cleaning guide mechanism (8) and the mud discharge pipe (9 ... cleaning guide mechanism (8) and the mud discharge pipe (9) are fixedly connected to the support base (2), the cleaning guide mechanism (8) and the mud discharge pipe (9) are fixedly connected to the support base (2), the cleaning guide mechanism (8) and the mud discharge pipe (9) are fixedly connected to the support base (2), the cleaning guide mechanism (8) and the mud discharge pipe (9) are fixedly connected to the support base (2), The processing box (1) is fixedly connected, the processing box (1) is provided with a No. 2 processing tank (13), the inclined pipe (5) is placed in the No. 2 processing tank (13), the processing box (1) is provided with a No. 3 processing tank (14), the mechanical coagulation mechanism (4) is placed in the No. 3 processing tank (14), the lifting mechanism (7) and the integrated membrane filtration mechanism (6) are fixedly connected, the cleaning guide mechanism (8) is provided with a plurality of, and the plurality of cleaning guide mechanisms (8) and the lifting mechanism (7) are fixedly connected, and the mud discharge pipe (9) is fixedly connected to the processing box (1); The cleaning guide mechanism (8) comprises an intercepting rod (81), a guide unit (82), a brush roller (83), a baffle (84), a No. 2 slider (85), an annular spring (86), a guide rod (87) and an adjusting unit (88), wherein the intercepting rod (81) is fixedly connected to the lifting mechanism (7), the intercepting rod (81) is provided with a plurality of No. 1 through holes (811), the guide unit (82) is provided with a plurality of No. 1 through holes (811), and the plurality of guide units (82) and the No. 1 through holes (811) are slidably connected. Then, the intercepting rod (81) is provided with an arc groove (812), the guide rod (87) is placed in the arc groove (812), the annular spring (86) is sleeved outside the guide rod (87), the second slider (85) and the guide rod (87) are slidably connected, the baffle (84) and the second slider (85) are fixedly connected, four adjustment units (88) are provided, two brush rollers (83) are provided, and both ends of each brush roller (83) are rotatably connected to the adjustment unit (88); The guide unit (82) comprises a guide plate (821), a fixed block (822), a No. 1 slider (823) and a No. 1 return spring (824); the guide plate (821) and the fixed block (822) are fixedly connected; the fixed block (822) and the No. 1 slider (823) are fixedly connected; the intercepting rod (81) is provided with a No. 1 sliding groove (813); the No. 1 slider (823) and the No. 1 sliding groove (813) are slidably connected; the No. 1 return spring (824) is disposed in the No. 1 sliding groove (813); the guide plate (821) is spiral, and the pitch of the guide plate (821) gradually increases from bottom to top.

2. The modular multi-stage coordinated water treatment device according to claim 1, characterized in that: The integrated membrane filtration mechanism (6) includes a fixed seat (61), an ultrafiltration membrane (62), a water collecting pipe (63), a water production pump (64), a backwash pump (65), an air pump (66) and an air outlet pipe (67), wherein a plurality of ultrafiltration membranes (62) are provided, the fixed seat (61) and the plurality of ultrafiltration membranes (62) are fixedly connected, the plurality of ultrafiltration membranes (62) are connected to the water collecting pipe (63) via a pipeline, the water production pump (64) is connected to the water collecting pipe (63) via a pipeline, the backwash pump (65) is connected to the water collecting pipe (63) via a pipeline, a plurality of air outlet pipes (67) are provided, the air pump (66) is connected to the plurality of air outlet pipes (67) via a pipeline, and the plurality of air outlet pipes (67) are placed at the bottom of the ultrafiltration membrane (62).

3. The modular multi-stage coordinated water treatment device according to claim 2, characterized in that: The lifting mechanism (7) includes a No. 1 motor (71), a screw (72), a No. 4 slider (73) and a guide rail (74). The No. 1 motor (71) is fixedly connected to the fixed seat (61). The output end of the No. 1 motor (71) is fixedly connected to the screw (72). Two No. 4 sliders (73) are provided. The two No. 4 sliders (73) are fixedly connected to the intercepting rod (81). One of the No. 4 sliders (73) is provided with a thread groove (731). The thread groove (731) cooperates with the screw (72). The guide rail (74) and the No. 4 slider (73) are slidably connected.

4. The modular multi-stage coordinated water treatment device according to claim 3, characterized in that: The regulating unit (88) includes a No. 3 slider (881) and a No. 2 return spring (882), the baffle (84) is provided with an arcuate surface (841), the No. 3 slider (881) and the brush roller (83) are rotatably connected, the No. 4 slider (73) is provided with a No. 2 sliding groove (732), the No. 2 return spring (882) is placed in the No. 2 sliding groove (732), and the No. 3 slider (881) and the No. 2 sliding groove (732) are slidably connected.

5. The modular multi-stage coordinated water treatment device according to claim 4, characterized in that: The grid flocculation mechanism (3) comprises a grid plate (31), a flocculator (32) and a base (33); the grid plate (31) is placed in a No. 1 treatment tank (12); the flocculator (32) is spherical; the flocculator (32) is provided with an empty slot (321); the flocculator (32) is provided with a No. 2 through hole (322); the No. 2 through hole (322) is in communication with the empty slot (321); and the base (33) is fixedly connected to the treatment tank (1).

6. The modular multi-stage coordinated water treatment device according to claim 5, characterized in that: The mechanical coagulation mechanism (4) includes a No. 2 motor (41), a transmission shaft (42) and a stirring paddle (43); the No. 2 motor (41) is fixedly connected to the processing box (1); the output end of the No. 2 motor (41) is fixedly connected to the transmission shaft (42); the stirring paddle (43) is fixedly connected to the transmission shaft (42); and the processing box (1) is provided with a No. 3 processing tank (14).

7. The modular multi-stage coordinated water treatment device according to claim 6, characterized in that: The inclined tube (5) is honeycomb-shaped.

8. A modular multi-stage coordinated water treatment method, characterized by: Using a modular multi-stage coordinated water treatment device according to any one of claims 1 to 7, the water treatment method comprises the following steps: S1: injecting raw water into the biological slow filter (11) to pre-treat the water; S2: Grid flocculation mechanism (3) further treats the water; S3: By adding coagulant to water, the mechanical coagulation mechanism (4) mixes the water and coagulant; S4: The flocs in the water are allowed to settle through the inclined pipe (5) of the second treatment tank (13); S5: The integrated membrane filtration mechanism (6) filters out clean water, and at the same time, the water flow is adjusted through the cleaning guide mechanism (8), so that the integrated membrane filtration mechanism (6) can produce more clean water in a single filtration cycle; S6: The ultrafiltration membrane (62) is cleaned by the backwash pump (65) and the lifting mechanism (7) of the integrated membrane filtration mechanism (6) in cooperation with the brush roller (83).

Images