A multi-stage sewage treatment apparatus

Abstract

The present application relates to sewage treatment technical field, disclose a kind of multilevel sewage treatment equipment, including protection device, complex filter device, liquid outlet device, ultrafiltration device.When motor drives displacement cam rotates, displacement cam will drive liquid inlet push rod and air inlet push rod transverse movement, then liquid inlet push rod and liquid inlet spring will drive liquid inlet assembly reciprocating motion in liquid storage cylinder, to realize repeatedly preliminary filtration to sewage, while air inlet push rod and air inlet spring will drive air inlet assembly reciprocating motion in air outlet cylinder, when air inlet assembly slides outward, gas in air outlet cylinder will change from compressed state to non-compressed state, while subsequent gas enters into air outlet cylinder by air inlet head and first check valve, when air inlet assembly slides inward, first check valve will be in closed state, while gas in air outlet cylinder will change from non-compressed state to compressed state, to realize storage and pressurization to air.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a multi-stage wastewater treatment device. Background Technology

[0002] In the field of wastewater purification, wastewater treatment is a sophisticated and complex process. During wastewater treatment, not only suspended solids but also minute pollutants such as bacteria and viruses must be removed, thereby significantly improving the purity of the effluent. This process not only helps achieve the safe discharge or recycling of wastewater but also effectively alleviates water scarcity, reduces negative impacts on the ecological environment, and supports green development and public health.

[0003] However, existing wastewater treatment equipment generally requires pre-filtration to remove larger particles. This process typically involves a single filtration, and as the number of filtrations increases, particulate impurities accumulate. If these accumulated impurities are not removed promptly, the effectiveness of subsequent filtrations is significantly reduced. Furthermore, existing wastewater treatment equipment generally uses a single ultrafiltration membrane or multiple ultrafiltration membranes connected in series for ultrafiltration, which increases the burden on individual membranes and hinders ultrafiltration efficiency. Existing wastewater treatment equipment is generally constructed horizontally, resulting in a large footprint and inefficient use of vertical space, while also limiting ultrafiltration and filtration effectiveness. Therefore, a multi-stage wastewater treatment system is needed that can perform multiple pre-filtrations, automatically remove impurities, reduce the burden on individual ultrafiltration membranes, increase ultrafiltration efficiency, and even improve vertical space utilization and ultrafiltration effect, thus addressing the shortcomings of existing wastewater treatment equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage wastewater treatment device to solve the problems mentioned in the background art.

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a multi-stage wastewater treatment device, comprising a protective device, a secondary filtration device, a liquid outlet device, and an ultrafiltration device; the bottom of the protective device is fixedly installed on the ground; the secondary filtration device is fixedly installed horizontally inside the protective device; the liquid outlet device is fixedly installed at the top of the protective device; the ultrafiltration device is fixedly installed inside the protective device; the internal space of the ultrafiltration device is also connected to the internal space of the secondary filtration device; the secondary filtration device comprises an air inlet assembly, an air inlet spring, an air outlet cylinder, a liquid storage cylinder, a liquid inlet spring, a liquid inlet assembly, a liquid inlet push rod, a pressure assembly, and an air inlet push rod; the air inlet assembly is slidably installed along the axial direction at the left end of the air outlet cylinder; the two ends of the air inlet spring are fixedly connected to the air inlet assembly and the air outlet cylinder respectively; the left end of the pressure assembly is fixedly installed at the right end of the air outlet cylinder; the right end of the pressure assembly is fixedly installed at the left end of the liquid storage cylinder; the two ends of the liquid inlet spring are fixedly connected to the liquid storage cylinder and the liquid inlet assembly respectively. The liquid inlet assembly is slidably installed at the right end of the liquid storage tank along the axial direction; the liquid inlet push rod is fixedly installed at the lower end of the liquid inlet assembly along the transverse direction; the air inlet push rod is fixedly installed at the lower end of the air inlet assembly along the transverse direction; the air outlet and the liquid storage tank are fixedly installed inside the protective device along the transverse direction; the protective device includes a protective support, a protective shell, and a displacement cam; the protective support is fixedly installed at the lower end of the protective shell; the outer cylindrical surface of the displacement cam is rotatably connected to the inner wall of the protective shell; a motor is installed at the lower end of the protective shell; the output end of the motor is fixedly connected to the lower end of the displacement cam; when the motor drives the displacement cam to rotate, the displacement cam will drive the liquid inlet push rod and the air inlet push rod to move laterally, and then the liquid inlet push rod and the liquid inlet spring will drive the liquid inlet assembly to reciprocate in the liquid storage tank to achieve repeated preliminary filtration of sewage, while the air inlet push rod and the air inlet spring will drive the air inlet assembly to reciprocate in the air outlet to achieve air storage and pressurization.

[0006] Furthermore, the protective device also includes a protective disc, a one-way component, a protective socket, and a protective mounting hole; the protective disc is fixedly installed on the upper end of the protective housing; the one-way component is rotatably connected to the inside of the protective housing; the protective socket is fixedly installed on the inner wall of the protective housing; the protective mounting hole is fixedly installed on the side of the protective housing; the protective mounting hole is also fixedly connected to the air exhalation cylinder and the liquid storage cylinder.

[0007] Furthermore, the one-way assembly includes a first one-way tooth, a one-way disc, a one-way seat, a transmission disc, a groove, a one-way slot, a second one-way tooth, and a torque disc; the first one-way tooth is fixedly mounted on the side of the one-way disc by a spring; the first one-way tooth is also inserted into a protective socket; the one-way disc is fixedly mounted on the upper end of the one-way seat; the outer cylindrical surface of the one-way seat is rotatably connected to the inner cylindrical surface of the protective shell; the one-way seat is fixedly mounted on the upper end of the torque disc; the upper end of the transmission disc is rotatably connected to the lower end of the one-way seat; the groove is fixedly mounted on the outer side of the transmission disc; the one-way slot is fixedly mounted on the inner side of the transmission disc; the second one-way tooth is fixedly mounted on the side of the torque disc by a spring.

[0008] Furthermore, the displacement cam includes a displacement disk and a cam body; the lower end of the displacement disk is fixedly connected to the motor output end inside the protective housing; the cam body is fixedly installed on the upper end of the displacement disk.

[0009] Furthermore, the secondary filtration device also includes a transmission support, a transmission rod, a toothed cam, and a conveying pipe; the transmission support is fixedly installed on the upper end of the air intake assembly; the transmission rod is fixedly installed on the upper end of the transmission support; the toothed cam is fixedly installed on the side of the transmission rod; the lower end of the conveying pipe is fixedly connected to the liquid storage tank; and the upper end of the conveying pipe is rotatably connected to the inside of the torque disc.

[0010] Furthermore, the air intake assembly includes an air intake head, an air intake pipe, an air intake plunger, and a first one-way valve; the air intake head is fixedly installed on the left side of the air intake spring; the air intake pipe is fixedly installed on the right side of the air intake head; the air intake plunger is fixedly installed on the right side of the air intake pipe; the first one-way valve is fixedly installed inside the air intake plunger; the left end of the first one-way valve is also fixedly connected to the right end of the air intake pipe; the air intake plunger is slidably installed inside the exhaust cylinder.

[0011] Furthermore, the pressure assembly includes a fan blade, an air extraction cylinder, a magnetic base, a magnetic suction cup, a cleaning plunger, a cleaning disc, a flexible cleaning strip, and a collection pipe. The fan blade is fixedly installed radially around the periphery of the air extraction cylinder. The air extraction cylinder is fixedly installed at the left end of the cleaning plunger. The air extraction cylinder is also slidably installed inside the magnetic base. The air extraction cylinder contains a plunger and an adsorption sponge. The two ends of the magnetic base are fixedly connected to the exhaust cylinder and the liquid storage cylinder, respectively. The magnetic suction cup is slidably installed inside the liquid storage cylinder. The magnetic suction cup is also magnetically adsorbed to the magnetic base. The cleaning plunger is slidably installed inside the liquid storage cylinder. The cleaning disc is rotatably connected to the right side of the cleaning plunger. The flexible cleaning strip is fixedly installed on the right side of the cleaning disc. The collection pipe is fixedly installed inside the cleaning plunger. The two ends of the collection pipe are connected to the air extraction cylinder and the cleaning disc, respectively.

[0012] Furthermore, the liquid inlet assembly includes a filter disc, an inlet pipe, an inlet plunger, an inlet cylinder, an inlet head, and a second one-way valve; the filter disc is fixedly installed on the left side of the inlet pipe; the inlet pipe is fixedly installed on the left side of the inlet cylinder; the inlet plunger is slidably installed on the periphery of the inlet cylinder; the inlet plunger is also fixedly installed inside the liquid storage cylinder; the inlet cylinder is fixedly installed on the left side of the inlet head; the inlet head is fixedly installed on the right side of the inlet spring; and the second one-way valve is fixedly installed inside the inlet head.

[0013] Furthermore, the liquid outlet device includes a third one-way valve, an outlet cover, and an outlet pipe; the third one-way valve is fixedly installed at the lower end of the outlet cover; the third one-way valve is also connected to the upper end of the ultrafiltration device; the outlet cover is fixedly installed at the upper end of the protective plate by bolts; and the outlet pipe is fixedly installed on the side of the outlet cover.

[0014] Furthermore, the ultrafiltration device includes an ultrafiltration base, an ultrafiltration housing, an ultrafiltration outlet, a shaking cylinder, an ultrafiltration spring, a shaking base, a first ultrafiltration plate, a fourth one-way valve, an ultrafiltration output pipe, a fifth one-way valve, a second ultrafiltration plate, a third ultrafiltration plate, and a sixth one-way valve; the ultrafiltration base is fixedly installed on the upper end of the one-way disc; the ultrafiltration housing is fixedly installed on the upper end of the ultrafiltration base; the lower end of the ultrafiltration outlet is fixedly installed on the upper end of the shaking cylinder; the upper end of the ultrafiltration outlet is connected to the lower end of the third one-way valve; the lower end of the shaking cylinder is fixedly installed on the upper end of the shaking base; the shaking base is slidably installed around the ultrafiltration housing in a circumferential direction; the shaking base is also connected to the interior of the ultrafiltration housing through a flexible pipe; the two ends of the ultrafiltration spring are... The ultrafiltration membrane is fixedly installed on the side of the shaking base and the side of the ultrafiltration housing; the ultrafiltration output tube is fixedly installed vertically at the upper end of the ultrafiltration base; the ultrafiltration output tube is also connected to the delivery pipeline; the first ultrafiltration plate is fixedly installed at the upper end of the ultrafiltration housing; the fourth one-way valve is fixedly installed radially at the upper end of the ultrafiltration output tube; the second ultrafiltration plate is fixedly installed in the middle of the ultrafiltration housing; the fifth one-way valve is fixedly installed radially in the middle of the ultrafiltration output tube; the third ultrafiltration plate is fixedly installed at the lower part of the ultrafiltration housing; the sixth one-way valve is fixed radially at the lower part of the ultrafiltration output tube; ultrafiltration membranes are provided inside the first, second, and third ultrafiltration plates; an activated carbon adsorption layer is provided inside the shaking cylinder.

[0015] The beneficial effects of this invention compared with the prior art are: (1) When the motor drives the displacement cam to rotate, the displacement cam will drive the liquid inlet push rod and the air inlet push rod to move laterally. Then the liquid inlet push rod and the liquid inlet spring will drive the liquid inlet assembly to reciprocate in the liquid storage cylinder to achieve repeated preliminary filtration of sewage. At the same time, the air inlet push rod and the air inlet spring will drive the air inlet assembly to reciprocate in the air outlet cylinder. When the air inlet assembly slides outward, the gas in the air outlet cylinder will change from a compressed state to an uncompressed state. At the same time, the subsequent gas enters the air outlet cylinder through the air inlet head and the first one-way valve. When the air inlet assembly slides inward, the first one-way valve will be closed. At the same time, the gas in the air outlet cylinder will change from an uncompressed state to a compressed state, thereby achieving the storage and pressurization of air. (2) When the air intake assembly reciprocates in the air exhaust cylinder, the gas in the air exhaust cylinder will quickly switch between an uncompressed state and a compressed state, so that the gas in the air exhaust cylinder is in a flowing state, thereby driving the fan blade and the suction cylinder to rotate. The suction cylinder drives the cleaning plunger to rotate, and the cleaning plunger drives the cleaning disc to roll on the inner wall of the liquid storage cylinder. When the filter disc contacts the cleaning disc, the cleaning disc washes the impurities on the surface of the filter disc through the flexible cleaning strip. At the same time, the change in air pressure inside the air exhaust cylinder will also drive the plunger in the suction cylinder to slide back and forth in the suction cylinder. When the plunger in the suction cylinder slides outward, it will collect the impurities from the collection pipe and the cleaning disc into the suction cylinder, thereby realizing the cleaning function of impurities. (3) When the air pressure in the exhalation cylinder is greater than the magnetic attraction force of the magnetic base on the magnetic suction plate, the gas in the exhalation cylinder will enter the left side of the magnetic suction plate through the through hole on the magnetic base, thereby pushing the magnetic suction plate and the cleaning plate to slide to the right. The magnetic suction plate and the cleaning plate will push the sewage in the storage tank from the delivery pipe into the ultrafiltration device to realize the secondary transportation function of sewage. (4) When the sewage enters the ultrafiltration device, the driving force generated by the magnetic suction plate and the cleaning plate will push the sewage to flow upward in the ultrafiltration output pipe, and then spray it outward from the fourth one-way valve, the fifth one-way valve and the sixth one-way valve respectively. Then the sewage will contact the first ultrafiltration plate, the second ultrafiltration plate and the third ultrafiltration plate respectively and perform ultrafiltration to realize the dispersion ultrafiltration of sewage, thereby reducing the burden on a single ultrafiltration membrane. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention in its working state. Figure 1 ; Figure 2 This is a schematic diagram of the overall assembly structure of the present invention in its working state. Figure 2 ; Figure 3 This is a schematic diagram of the protective device of the present invention; Figure 4 This is a schematic diagram of the structure of the unidirectional component of the present invention; Figure 5 This is a schematic diagram of the structure of the displacement cam of the present invention; Figure 6This is a schematic diagram of the structure of the double filtration device of the present invention; Figure 7 This is a schematic diagram of the air intake assembly of the present invention; Figure 8 This is a schematic diagram of the pressure component of the present invention; Figure 9 This is a schematic diagram of the liquid inlet assembly of the present invention; Figure 10 This is a schematic diagram of the liquid dispensing device of the present invention; Figure 11 This is a schematic diagram of the ultrafiltration device of the present invention. Figure 1 ; Figure 12 This is a schematic diagram of the ultrafiltration device of the present invention. Figure 2 .

[0017] In the diagram: 1-Protective device; 2-Re-filtration device; 3-Liquid outlet device; 4-Ultrafiltration device; 101-Protective support; 102-Protective housing; 103-Protective disc; 104-One-way component; 105-Protective insertion hole; 106-Displacement cam; 107-Protective mounting hole; 108-First one-way gear; 109-One-way disc; 110-One-way seat; 111-Transmission disc; 112-Groove; 113-One-way groove; 114-First... Two one-way gears; 115-torque disc; 116-positioning disc; 117-cam body; 201-intake assembly; 202-intake spring; 203-transmission bracket; 204-exhaust cylinder; 205-transmission rod; 206-convex tooth; 207-delivery pipe; 208-liquid reservoir; 209-liquid inlet spring; 210-liquid inlet assembly; 211-liquid inlet push rod; 212-pressure assembly; 213-intake push rod; 214-intake... 215-Inlet pipe; 216-Inlet plunger; 217-First check valve; 218-Fan blade; 219-Ejector; 220-Magnetic base; 221-Magnetic plate; 222-Cleaning plunger; 223-Cleaning disc; 224-Flexible cleaning strip; 225-Collection pipe; 226-Filter disc; 227-Liquid inlet pipe; 228-Liquid inlet plunger; 229-Liquid inlet cylinder; 230-Liquid inlet head; 231-Second check valve; 301-Third check valve; 302-Discharge cover; 303-Discharge pipe; 401-Ultrafiltration base; 402-Ultrafiltration housing; 403-Ultrafiltration outlet; 404-Shaking cylinder; 405-Ultrafiltration spring; 406-Shaking base; 407-First ultrafiltration plate; 408-Fourth check valve; 409-Ultrafiltration output pipe; 410-Fifth check valve; 411-Second ultrafiltration plate; 412-Third ultrafiltration plate; 413-Sixth check valve. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] Figures 1 to 12 This is a preferred embodiment of the present invention.

[0021] like Figure 1 and Figure 2 As shown, the bottom of the protective device 1 is fixedly installed on the ground; the secondary filtration device 2 is fixedly installed horizontally inside the protective device 1; the liquid outlet device 3 is fixedly installed at the top of the protective device 1; the ultrafiltration device 4 is fixedly installed inside the protective device 1; the internal space of the ultrafiltration device 4 is also connected to the internal space of the secondary filtration device 2; the secondary filtration device 2 includes an air inlet assembly 201, an air inlet spring 202, an air outlet cylinder 204, a liquid storage cylinder 208, a liquid inlet spring 209, a liquid inlet assembly 210, a liquid inlet push rod 211, a pressure assembly 212, and an air inlet... Push rod 213; air intake assembly 201 is slidably mounted on the left end of air outlet 204 along the axial direction; both ends of air intake spring 202 are fixedly connected to air intake assembly 201 and air outlet 204 respectively; the left end of pressure assembly 212 is fixedly mounted on the right end of air outlet 204; the right end of pressure assembly 212 is fixedly mounted on the left end of liquid storage tank 208; both ends of liquid inlet spring 209 are fixedly connected to liquid storage tank 208 and liquid inlet assembly 210 respectively; liquid inlet assembly 210 is slidably mounted on the right end of liquid storage tank 208 along the axial direction; liquid inlet push rod 2 11 is fixedly installed in the lower end of the liquid inlet assembly 210 in the lateral direction; the air inlet push rod 213 is fixedly installed in the lower end of the air inlet assembly 201 in the lateral direction; the air outlet 204 and the liquid storage tank 208 are fixedly installed in the interior of the protective device 1 in the lateral direction; the protective device 1 includes a protective support 101, a protective shell 102, and a displacement cam 106; the protective support 101 is fixedly installed in the lower end of the protective shell 102; the outer cylindrical surface of the displacement cam 106 is rotatably connected to the inner wall of the protective shell 102; the lower end of the protective shell 102 is provided with There is a motor; the output end of the motor is fixedly connected to the lower end of the displacement cam 106; when the motor drives the displacement cam 106 to rotate, the displacement cam 106 will drive the liquid inlet push rod 211 and the air inlet push rod 213 to move laterally. Then the liquid inlet push rod 211 and the liquid inlet spring 209 will drive the liquid inlet assembly 210 to reciprocate in the liquid storage cylinder 208 to achieve repeated preliminary filtration of sewage. At the same time, the air inlet push rod 213 and the air inlet spring 202 will drive the air inlet assembly 201 to reciprocate in the air outlet cylinder 204 to achieve air storage and pressurization.

[0022] like Figure 3As shown, in the protective device 1, the protective disc 103 is fixedly installed on the upper end of the protective housing 102; the one-way component 104 is rotatably connected to the inside of the protective housing 102; the protective insertion hole 105 is fixedly installed on the inner wall of the protective housing 102; the protective mounting hole 107 is fixedly installed on the side of the protective housing 102; the protective mounting hole 107 is also fixedly connected to the air exhalation cylinder 204 and the liquid storage cylinder 208.

[0023] like Figure 4 As shown, in the one-way assembly 104, the first one-way tooth 108 is fixedly mounted on the side of the one-way disc 109 by a spring; the first one-way tooth 108 is also inserted into the protective socket 105; the one-way disc 109 is fixedly mounted on the upper end of the one-way seat 110; the outer cylindrical surface of the one-way seat 110 is rotatably connected to the inner cylindrical surface of the protective shell 102; the one-way seat 110 is fixedly mounted on the upper end of the torque disc 115; the upper end of the transmission disc 111 is rotatably connected to the lower end of the one-way seat 110; the groove 112 is fixedly mounted on the outer side of the transmission disc 111; the one-way slot 113 is fixedly mounted on the inner side of the transmission disc 111; and the second one-way tooth 114 is fixedly mounted on the side of the torque disc 115 by a spring.

[0024] like Figure 5 As shown, in the displacement cam 106, the lower end of the displacement disk 116 is fixedly connected to the motor output end inside the protective housing 102; the cam body 117 is fixedly installed on the upper end of the displacement disk 116.

[0025] like Figure 6 As shown, in the secondary filtration device 2, the transmission bracket 203 is fixedly installed on the upper end of the air intake assembly 201; the transmission rod 205 is fixedly installed on the upper end of the transmission bracket 203; the convex tooth 206 is fixedly installed on the side of the transmission rod 205; the lower end of the conveying pipe 207 is fixedly connected to the liquid storage cylinder 208; and the upper end of the conveying pipe 207 is rotatably connected to the inside of the torque disk 115.

[0026] like Figure 7 As shown, in the intake assembly 201, the intake head 214 is fixedly installed on the left side of the intake spring 202; the intake pipe 215 is fixedly installed on the right side of the intake head 214; the intake plunger 216 is fixedly installed on the right side of the intake pipe 215; the first one-way valve 217 is fixedly installed inside the intake plunger 216; the left end of the first one-way valve 217 is also fixedly connected to the right end of the intake pipe 215; the intake plunger 216 is slidably installed inside the exhaust cylinder 204.

[0027] like Figure 8As shown, in the pressure assembly 212, the fan blade 218 is fixedly installed radially around the periphery of the suction cylinder 219; the suction cylinder 219 is fixedly installed at the left end of the cleaning plunger 222; the suction cylinder 219 is also slidably installed inside the magnetic base 220; the suction cylinder 219 is provided with a plunger and an adsorption sponge; the two ends of the magnetic base 220 are fixedly connected to the exhaust cylinder 204 and the liquid storage cylinder 208 respectively; the magnetic suction plate 221 is slidably installed inside the liquid storage cylinder 208; the magnetic suction plate 221 is also magnetically adsorbed to the magnetic base 220; the cleaning plunger 222 is slidably installed inside the liquid storage cylinder 208; the cleaning disc 223 is rotatably connected to the right side of the cleaning plunger 222; the flexible cleaning strip 224 is fixedly installed on the right side of the cleaning disc 223; the collection pipe 225 is fixedly installed inside the cleaning plunger 222; the two ends of the collection pipe 225 are connected to the suction cylinder 219 and the cleaning disc 223 respectively.

[0028] like Figure 9 As shown, in the liquid inlet assembly 210, the filter disc 226 is fixedly installed on the left side of the liquid inlet pipe 227; the liquid inlet pipe 227 is fixedly installed on the left side of the liquid inlet cylinder 229; the liquid inlet plunger 228 is slidably installed on the periphery of the liquid inlet cylinder 229; the liquid inlet plunger 228 is also fixedly installed inside the liquid storage cylinder 208; the liquid inlet cylinder 229 is fixedly installed on the left side of the liquid inlet head 230; the liquid inlet head 230 is fixedly installed on the right side of the liquid inlet spring 209; and the second one-way valve 231 is fixedly installed inside the liquid inlet head 230.

[0029] like Figure 10 As shown, in the liquid outlet device 3, the third one-way valve 301 is fixedly installed at the lower end of the liquid outlet cover 302; the third one-way valve 301 is also connected to the upper end of the ultrafiltration device 4; the liquid outlet cover 302 is fixedly installed at the upper end of the protective plate 103 by bolts; the liquid outlet pipe 303 is fixedly installed on the side of the liquid outlet cover 302.

[0030] like Figure 11 and Figure 12As shown, in the ultrafiltration device 4, the ultrafiltration base 401 is fixedly installed on the upper end of the one-way disc 109; the ultrafiltration housing 402 is fixedly installed on the upper end of the ultrafiltration base 401; the lower end of the ultrafiltration outlet 403 is fixedly installed on the upper end of the shaking cylinder 404; the upper end of the ultrafiltration outlet 403 is connected to the lower end of the third one-way valve 301; the lower end of the shaking cylinder 404 is fixedly installed on the upper end of the shaking base 406; the shaking base 406 is slidably installed around the ultrafiltration housing 402 in the circumferential direction; the shaking base 406 is also connected to the interior of the ultrafiltration housing 402 through a flexible pipe; the two ends of the ultrafiltration spring 405 are fixedly installed on the side of the shaking base 406 and the side of the ultrafiltration housing 402 respectively; the ultrafiltration output pipe 409 is fixedly installed in the vertical direction. The upper end of the ultrafiltration base 401; the ultrafiltration output pipe 409 is also connected to the delivery pipe 207; the first ultrafiltration plate 407 is fixedly installed at the upper end of the ultrafiltration housing 402; the fourth one-way valve 408 is fixedly installed at the upper end of the ultrafiltration output pipe 409 in the radial direction; the second ultrafiltration plate 411 is fixedly installed in the middle of the ultrafiltration housing 402; the fifth one-way valve 410 is fixedly installed in the middle of the ultrafiltration output pipe 409 in the radial direction; the third ultrafiltration plate 412 is fixedly installed in the lower part of the ultrafiltration housing 402; the sixth one-way valve 413 is fixedly installed in the lower part of the ultrafiltration output pipe 409 in the radial direction; ultrafiltration membranes are provided in the first ultrafiltration plate 407, the second ultrafiltration plate 411 and the third ultrafiltration plate 412; an activated carbon adsorption layer is provided in the shaking cylinder 404.

[0031] Working principle of the invention: Figure 1 and Figure 2 The invention provides usage methods and corresponding scenarios. The attitude control of the sewage treatment process is determined by the protective device 1, the secondary filtration device 2, and the ultrafiltration device 4. The attitude of the protective device 1 is determined by the secondary filtration device 2, and the attitude of the ultrafiltration device 4 is determined by the secondary filtration device 2. Therefore, the secondary filtration device 2 is the core of the sewage treatment process.

[0032] Taking a preferred embodiment as an example, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, firstly, the motor at the lower end of the protective housing 102 is started. The motor at the lower end of the protective housing 102 drives the displacement plate 116 of the displacement cam 106 to rotate. The displacement plate 116 drives the cam body 117 to rotate. The cam body 117 contacts the liquid inlet push rod 211 and the air inlet push rod 213 and drives the liquid inlet push rod 211 and the air inlet push rod 213 to move laterally. Subsequently, the elastic force of the liquid inlet spring 209 and the lateral movement of the liquid inlet push rod 211 drive the liquid inlet assembly 210 to reciprocate in the liquid storage tank 208. During the reciprocating movement of the liquid inlet assembly 210, sewage enters the liquid inlet pipe 227 and the liquid inlet tank 229 through the second one-way valve 231 on the liquid inlet head 230, and then enters the liquid storage tank 208 from the liquid inlet pipe 227. The filter disc 226 reciprocates in the storage tank 208, thus achieving repeated preliminary filtration of the wastewater. Simultaneously, the lateral movement of the air intake push rod 213 and the elastic force of the air intake spring 202 drive the air intake assembly 201 to reciprocate in the exhaust cylinder 204. When the air intake plunger 216 on the air intake assembly 201 slides outward, the gas in the exhaust cylinder 204 changes from a compressed state to an uncompressed state. Subsequently, the gas passes through the air intake head 214 and the air intake pipe 215, actuating the first one-way valve 217, and then enters the exhaust cylinder 204 from the first one-way valve 217. When the air intake plunger 216 on the air intake assembly 201 slides inward, the first one-way valve 217 closes, and the gas in the exhaust cylinder 204 changes from an uncompressed state... The air is converted into a compressed state, thereby storing and pressurizing the air. When the intake assembly 201 reciprocates continuously within the exhaust cylinder 204, the gas within the exhaust cylinder 204 rapidly switches between an uncompressed and compressed state, keeping the gas in a flowing state. This causes the fan blades 218 of the pressure assembly 212 and the suction cylinder 219 to rotate. The suction cylinder 219 drives the cleaning plunger 222 to rotate, and the cleaning plunger 222 drives the cleaning disc 223 to roll on the inner wall of the storage cylinder 208. When the filter disc 226 contacts the cleaning disc 223, the cleaning disc 223 washes away impurities on the surface of the filter disc 226 through the flexible cleaning strip 224. At the same time, the change in air pressure inside the exhaust cylinder 204 also drives the plunger in the suction cylinder 219 to rotate. The plunger inside the air pump 219 slides back and forth. When the plunger inside the air pump 219 slides outward, it collects impurities from the collection pipe 225 and the cleaning disc 223 into the air pump 219. At this time, the adsorption sponge inside the air pump 219 will adsorb the impurities, thereby achieving the cleaning function of impurities. When the air pressure inside the air pump 204 is greater than the magnetic attraction force of the magnetic base 220 on the magnetic suction plate 221, the gas inside the air pump 204 will enter the left side of the magnetic suction plate 221 through the through hole on the magnetic base 220, thereby pushing the magnetic suction plate 221 and the cleaning disc 223 to slide to the right. Then, the magnetic suction plate 221 and the cleaning disc 223 will push the sewage in the liquid storage tank 208 into the ultrafiltration device 4 through the delivery pipe 207, thereby achieving the secondary transportation function of sewage.During the reciprocating movement of the intake assembly 201, the intake assembly 201 also drives the transmission rod 205 to reciprocate via the transmission bracket 203. The transmission rod 205 drives the transmission disc 111 to reciprocate through the meshing of the convex tooth 206 and the groove 112. When the transmission disc 111 rotates clockwise, it drives the torque disc 115 of the one-way assembly 104 to rotate through the one-way meshing of the one-way groove 113 and the second one-way tooth 114. The torque disc 115 drives the one-way disc 109 and the first one-way tooth 108 to rotate clockwise via the one-way seat 110. Subsequently, the one-way... The disk 109 drives the ultrafiltration device 4 to rotate clockwise by a certain angle. When the drive disk 111 rotates counterclockwise, the second one-way tooth 114 is squeezed by the one-way groove 113 and will disengage from the one-way groove 113. At the same time, the first one-way tooth 108 will also be unidirectionally jammed by the protective insertion hole 105, making the one-way disk 109 unable to rotate, thereby realizing the one-way intermittent rotation of the ultrafiltration device 4. The protective support 101 on the protective device 1 is used to support the protective shell 102. The protective disk 103 is used for the installation of the liquid outlet device 3. The protective mounting hole 107 is used for the installation of the exhaust cylinder 204 and the liquid storage cylinder 208.

[0033] like Figure 10 , Figure 11 , Figure 12 As shown, when wastewater enters the ultrafiltration output pipe 409 of the ultrafiltration device 4 through the conveying pipe 207 and the one-way component 104, the pushing force generated by the magnetic suction plate 221 and the cleaning plate 223 will push the wastewater upward in the ultrafiltration output pipe 409, and then spray it outward from the fourth one-way valve 408, the fifth one-way valve 410 and the sixth one-way valve 413 respectively. Then the wastewater will come into contact with the first ultrafiltration plate 407, the second ultrafiltration plate 411 and the third ultrafiltration plate 412 respectively and undergo ultrafiltration to achieve the function of dispersed ultrafiltration of wastewater, thereby reducing the burden on individual ultrafiltration membranes. After ultrafiltration, the wastewater will first collect at the bottom of the ultrafiltration housing 402, and then flow from the bottom of the ultrafiltration housing 402 into multiple rocking bases 406 and rocking cylinders 404 respectively. When the one-way component 104 When the ultrafiltration base 401 rotates in one direction, the ultrafiltration housing 402 will also drive the shaking base 406 to rotate. When the one-way component 104 drives the ultrafiltration base 401 to stop, inertia will cause the shaking base 406 to continue rotating around the ultrafiltration housing 402. At this time, the ultrafiltration spring 405 will be compressed. When the ultrafiltration spring 405 is compressed to a certain extent, the ultrafiltration spring 405 will cause the shaking base 406 to rebound through its elasticity. At this time, the shaking cylinder 404 will follow the shaking base 406 to shake back and forth, so that the sewage can fully contact the activated carbon adsorption layer in the shaking cylinder 404. When the liquid level in the shaking cylinder 404 continues to rise, the purified sewage will enter the liquid outlet cover 302 from the ultrafiltration outlet 403 and the third one-way valve 301 of the liquid outlet device 3, and then be discharged from the liquid outlet pipe 303.

[0034] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A multi-stage wastewater treatment device, comprising a protective device (1), a secondary filtration device (2), an effluent outlet device (3), and an ultrafiltration device (4), characterized in that: The bottom of the protective device (1) is fixedly installed on the ground; the secondary filtration device (2) is fixedly installed horizontally inside the protective device (1); the liquid outlet device (3) is fixedly installed at the top of the protective device (1); the ultrafiltration device (4) is fixedly installed inside the protective device (1); the internal space of the ultrafiltration device (4) is also connected to the internal space of the secondary filtration device (2); the secondary filtration device (2) includes an air inlet assembly (201), an air inlet spring (202), an air outlet cylinder (204), a liquid storage cylinder (208), a liquid inlet spring (209), a liquid inlet assembly (210), a liquid inlet push rod (211), and a pressure assembly (212).

1. Intake push rod (213); intake assembly (201) is slidably installed on the left end of exhaust cylinder (204) along the axial direction; both ends of intake spring (202) are fixedly connected to intake assembly (201) and exhaust cylinder (204) respectively; the left end of pressure assembly (212) is fixedly installed on the right end of exhaust cylinder (204); the right end of pressure assembly (212) is fixedly installed on the left end of liquid storage cylinder (208); both ends of liquid inlet spring (209) are fixedly connected to liquid storage cylinder (208) and liquid inlet assembly (210) respectively; liquid inlet assembly (210) is slidably installed on the right end of liquid storage cylinder (208) along the axial direction; liquid inlet... A push rod (211) is fixedly installed laterally at the lower end of the liquid inlet assembly (210); an air inlet push rod (213) is fixedly installed laterally at the lower end of the air inlet assembly (201); an exhaust cylinder (204) and a liquid storage cylinder (208) are fixedly installed laterally inside the protective device (1); the protective device (1) includes a protective support (101), a protective housing (102), and a displacement cam (106); the protective support (101) is fixedly installed at the lower end of the protective housing (102); the outer cylindrical surface of the displacement cam (106) is rotatably connected to the inner wall of the protective housing (102); the protective housing (102) A motor is installed at the lower end; the output end of the motor is fixedly connected to the lower end of the displacement cam (106); when the motor drives the displacement cam (106) to rotate, the displacement cam (106) will drive the liquid inlet push rod (211) and the air inlet push rod (213) to move laterally. Then the liquid inlet push rod (211) and the liquid inlet spring (209) will drive the liquid inlet assembly (210) to reciprocate in the liquid storage cylinder (208) to achieve repeated preliminary filtration of sewage. At the same time, the air inlet push rod (213) and the air inlet spring (202) will drive the air inlet assembly (201) to reciprocate in the air outlet cylinder (204) to achieve air storage and pressurization.

2. The multi-stage sewage treatment equipment according to claim 1, characterized in that: The protective device (1) also includes a protective disc (103), a one-way component (104), a protective socket (105), and a protective mounting hole (107); the protective disc (103) is fixedly installed on the upper end of the protective shell (102); the one-way component (104) is rotatably connected to the inside of the protective shell (102); the protective socket (105) is fixedly installed on the inner wall of the protective shell (102); the protective mounting hole (107) is fixedly installed on the side of the protective shell (102); the protective mounting hole (107) is also fixedly connected to the exhalation cylinder (204) and the liquid storage cylinder (208).

3. The multi-stage sewage treatment equipment according to claim 2, characterized in that: The one-way assembly (104) includes a first one-way tooth (108), a one-way disc (109), a one-way seat (110), a transmission disc (111), a groove (112), a one-way slot (113), a second one-way tooth (114), and a torque disc (115); the first one-way tooth (108) is fixedly mounted on the side of the one-way disc (109) by a spring; the first one-way tooth (108) is also inserted into the protective socket (105); the one-way disc (109) is fixedly mounted on the upper end of the one-way seat (110); The outer cylindrical surface of the one-way seat (110) is rotatably connected to the inner cylindrical surface of the protective shell (102); the one-way seat (110) is fixedly installed on the upper end of the torque disk (115); the upper end of the transmission disk (111) is rotatably connected to the lower end of the one-way seat (110); the groove (112) is fixedly installed on the outer side of the transmission disk (111); the one-way groove (113) is fixedly installed on the inner side of the transmission disk (111); the second one-way tooth (114) is fixedly installed on the side of the torque disk (115) by a spring.

4. A multi-stage wastewater treatment device according to claim 3, characterized in that: The displacement cam (106) includes a displacement disk (116) and a cam body (117); the lower end of the displacement disk (116) is fixedly connected to the motor output end inside the protective housing (102); the cam body (117) is fixedly installed on the upper end of the displacement disk (116).

5. A multi-stage wastewater treatment device according to claim 4, characterized in that: The secondary filtration device (2) also includes a transmission bracket (203), a transmission rod (205), a tooth (206), and a conveying pipe (207); the transmission bracket (203) is fixedly installed on the upper end of the air intake assembly (201); the transmission rod (205) is fixedly installed on the upper end of the transmission bracket (203); the tooth (206) is fixedly installed on the side of the transmission rod (205); the lower end of the conveying pipe (207) is fixedly connected to the liquid storage cylinder (208); the upper end of the conveying pipe (207) is rotatably connected to the inside of the torque disk (115).

6. A multi-stage wastewater treatment device according to claim 5, characterized in that: The intake assembly (201) includes an intake head (214), an intake pipe (215), an intake plunger (216), and a first one-way valve (217); the intake head (214) is fixedly installed on the left side of the intake spring (202); the intake pipe (215) is fixedly installed on the right side of the intake head (214); the intake plunger (216) is fixedly installed on the right side of the intake pipe (215); the first one-way valve (217) is fixedly installed inside the intake plunger (216); the left end of the first one-way valve (217) is also fixedly connected to the right end of the intake pipe (215); the intake plunger (216) is slidably installed inside the exhaust cylinder (204).

7. A multi-stage wastewater treatment device according to claim 6, characterized in that: The pressure assembly (212) includes a fan blade (218), an air extraction cylinder (219), a magnetic base (220), a magnetic chuck (221), a cleaning plunger (222), a cleaning disc (223), a flexible cleaning strip (224), and a collection pipe (225). The fan blade (218) is fixedly installed on the periphery of the air extraction cylinder (219) in the radial direction. The air extraction cylinder (219) is fixedly installed on the left end of the cleaning plunger (222). The air extraction cylinder (219) is also slidably installed inside the magnetic base (220). The air extraction cylinder (219) is provided with a plunger and an adsorption sponge inside. The two ends of the magnetic base (220) are fixedly connected to the air exhalation cylinder (204) and the liquid storage cylinder (208) respectively. The magnetic chuck (221) is slidably installed inside the liquid storage cylinder (208). The magnetic chuck (221) is also magnetically adsorbed to the magnetic base (220). The cleaning plunger (222) is slidably installed inside the liquid storage cylinder (208); the cleaning disc (223) is rotatably connected to the right side of the cleaning plunger (222); the flexible cleaning strip (224) is fixedly installed on the right side of the cleaning disc (223); the collection pipe (225) is fixedly installed inside the cleaning plunger (222); the two ends of the collection pipe (225) are respectively connected to the vacuum cylinder (219) and the cleaning disc (223).

8. A multi-stage wastewater treatment device according to claim 7, characterized in that: The liquid inlet assembly (210) includes a filter disc (226), an inlet pipe (227), an inlet plunger (228), an inlet cylinder (229), an inlet head (230), and a second one-way valve (231). The filter disc (226) is fixedly installed on the left side of the inlet pipe (227). The inlet pipe (227) is fixedly installed on the left side of the inlet cylinder (229). The inlet plunger (228) is slidably installed on the periphery of the inlet cylinder (229). The inlet plunger (228) is also fixedly installed inside the liquid storage cylinder (208). The inlet cylinder (229) is fixedly installed on the left side of the inlet head (230). The inlet head (230) is fixedly installed on the right side of the inlet spring (209). The second one-way valve (231) is fixedly installed inside the inlet head (230).

9. A multi-stage wastewater treatment device according to claim 8, characterized in that: The liquid outlet device (3) includes a third one-way valve (301), a liquid outlet cover (302), and a liquid outlet pipe (303); the third one-way valve (301) is fixedly installed at the lower end of the liquid outlet cover (302); the third one-way valve (301) is also connected to the upper end of the ultrafiltration device (4); the liquid outlet cover (302) is fixedly installed at the upper end of the protective plate (103) by bolts; the liquid outlet pipe (303) is fixedly installed on the side of the liquid outlet cover (302).

10. A multi-stage wastewater treatment device according to claim 9, characterized in that: The ultrafiltration device (4) includes an ultrafiltration base (401), an ultrafiltration housing (402), an ultrafiltration outlet (403), a shaking cylinder (404), an ultrafiltration spring (405), a shaking base (406), a first ultrafiltration plate (407), a fourth one-way valve (408), an ultrafiltration outlet (409), a fifth one-way valve (410), a second ultrafiltration plate (411), a third ultrafiltration plate (412), and a sixth one-way valve (413); the ultrafiltration base (401) is fixedly installed on the upper end of the one-way disc (109); the ultrafiltration housing... The shell (402) is fixedly installed on the upper end of the ultrafiltration base (401); the lower end of the ultrafiltration outlet (403) is fixedly installed on the upper end of the shaking cylinder (404); the upper end of the ultrafiltration outlet (403) is connected to the lower end of the third one-way valve (301); the lower end of the shaking cylinder (404) is fixedly installed on the upper end of the shaking base (406); the shaking base (406) is slidably installed on the periphery of the ultrafiltration shell (402) in the circumferential direction; the shaking base (406) is also connected to the interior of the ultrafiltration shell (402) through a flexible pipe. The two ends of the ultrafiltration spring (405) are fixedly installed on the side of the rocking base (406) and the side of the ultrafiltration housing (402), respectively; the ultrafiltration output tube (409) is fixedly installed vertically on the upper end of the ultrafiltration base (401); the ultrafiltration output tube (409) is also connected to the conveying pipe (207); the first ultrafiltration plate (407) is fixedly installed on the upper end of the ultrafiltration housing (402); the fourth one-way valve (408) is fixedly installed radially on the upper end of the ultrafiltration output tube (409); the second ultrafiltration plate (411) The first ultrafiltration plate (407), the second ultrafiltration plate (411), and the third ultrafiltration plate (412) are all provided with ultrafiltration membranes. The shaking cylinder (404) is provided with an activated carbon adsorption layer.

Images