An industrial organic wastewater treatment device

Abstract

The present application belongs to wastewater treatment technical field, especially, relate to a kind of industrial organic wastewater treatment equipment, including biological treatment tank and the separation tank being arranged in the side wall of biological treatment tank effluent end, the outside wall of biological treatment tank is fixedly installed with control cabinet, further include: U-shaped groove plate, U-shaped groove plate is fixedly installed in the inside of the separation tank, the overflow channel is formed by the enclosure of U-shaped groove plate and the inner wall of separation tank.The present application can reduce the amount of activated sludge in contact with membrane separation unit, avoid the pollution difference of each membrane element being too large, reduce the possibility of membrane element blockage and damage, and can automatically blow the membrane separation unit to clear blockage, prolong the service life of membrane element, while also can detect the turbidity of effluent, avoid the discharge of wastewater exceeding the standard, and automatically carry out membrane separation unit leakage detection when turbidity exceeds the standard, facilitate accurate replacement of damaged membrane element.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wastewater treatment, and particularly relates to an industrial organic wastewater treatment equipment. BACKGROUND

[0002] With the rapid development of industry, the discharge amount of industrial organic wastewater is increasing day by day, and if it is directly discharged without effective treatment, it will cause serious damage to the ecological environment such as water bodies and soil, and will also threaten human health. Efficient treatment of industrial organic wastewater can not only reduce the risk of environmental pollution and protect the ecological balance, but also realize the recycling of water resources and alleviate the pressure of water resource shortage.

[0003] The membrane bioreactor combines membrane separation technology and biological treatment process, and uses the high-efficiency interception of the membrane to intercept microorganisms such as activated sludge in the reactor, so as to realize the separation of sludge and water and effectively remove organic matter, ammonia nitrogen and other pollutants in wastewater, and has high treatment efficiency, and is one of the commonly used treatment equipment for industrial wastewater treatment. For example, the patent with the publication number CN105000661B discloses a wastewater treatment membrane bioreactor.

[0004] The membrane bioreactor is mainly composed of a biological treatment unit and a membrane separation unit. In the biological treatment unit, the activated sludge plays a role to decompose and purify the organic wastewater. After biological treatment, the water enters the inside of the membrane separation unit, and the membrane elements are in a flat or arranged state. When the wastewater flows in, the membrane elements close to the overflow port will first and directly contact the wastewater containing activated sludge, which causes the amount of activated sludge attached to the membrane elements in this area to be much more than that away from the overflow port. On the one hand, too much activated sludge attachment will accelerate membrane pollution, increase the filtration resistance of the membrane, reduce the membrane flux, and shorten the service life of the membrane elements in this area. On the other hand, due to the large difference in the environment of the membrane elements at different positions, it will cause uneven treatment efficiency of the whole membrane separation unit, affect the overall purification effect of the wastewater, and thus it is difficult to stably reach the expected water quality standard. At the same time, the direct impact of the wastewater on the membrane elements may increase the adhesion of the activated sludge on the surface of the membrane elements, which is not conducive to the subsequent cleaning of the attached activated sludge. SUMMARY

[0005] The purpose of the present application is to solve the above problems, and provide an industrial organic wastewater treatment equipment.

[0006] In order to achieve the above purpose, the following technical scheme is adopted: an industrial organic wastewater treatment equipment, comprising a biological treatment tank and a separation tank arranged on the side wall of the outlet of the biological treatment tank, and a control cabinet fixedly installed on the outer side wall of the biological treatment tank, further comprising:

[0007] A U-shaped groove plate is fixedly installed in the inside of the separation tank, and the U-shaped groove plate and the inner wall of the separation tank form an overflow channel, and the side wall of the biological treatment tank is provided with an overflow inlet communicating with the overflow channel.

[0008] A roller sleeve is arranged inside the separation tank and inside the U-shaped groove plate, the side wall of the roller sleeve is provided with a membrane separation unit, a driving mechanism is arranged inside the overflow channel to drive the membrane separation unit to rotate, and an overflow return port is arranged on the side wall of the overflow channel away from the overflow inlet and communicates with the membrane separation unit.

[0009] A blockage cleaning unit is arranged above the roller sleeve to clean the membrane separation unit.

[0010] A sludge extraction mechanism is arranged at the lower end of the side wall of the separation tank to extract activated sludge inside the separation tank.

[0011] Preferably, the membrane separation unit comprises a rotating rod coaxial with the roller sleeve, the rotating rod is rotatably connected with the side wall of the separation tank, the rod wall of the rotating rod is fixedly sleeved with a mounting sleeve, the inner wall of the roller sleeve is fixedly provided with a plurality of arc-shaped sealing plates, each arc-shaped sealing plate is uniformly distributed in the form of a ring inside the roller sleeve, the side wall of each arc-shaped sealing plate and the side wall of the roller sleeve are both provided with a water inlet groove, each water inlet groove and the side wall of the mounting sleeve are both fixedly connected with a support pipe, the outer side wall of the roller sleeve is provided with a detachable arc-shaped membrane element at the position of each water inlet groove, the rod wall of the rotating rod is provided with a drainage groove, and a plurality of water inlet holes are arranged in the inner wall of the mounting sleeve at the position of the drainage groove, and a water outlet detection and distribution mechanism is arranged at the water outlet end of the rotating rod.

[0012] Preferably, the driving mechanism comprises an arc-shaped cover fixedly installed on the side wall of the U-shaped groove plate and arranged on one side of the overflow inlet, a driving rod is rotatably connected with the side wall of the separation tank inside the arc-shaped cover, and a impeller is fixedly sleeved with the rod wall of the driving rod at the inner side of the arc-shaped cover, after the wastewater enters the overflow channel through the overflow inlet, the wastewater hits the blades of the impeller to make the driving rod rotate, the driving rod and the rotating rod are drivingly connected through a chain transmission assembly, the separation tank is provided with a detection assembly for detecting the rotation angle of the driving rod, a driving motor is installed on the outer side wall of the separation tank, an electromagnetic clutch is arranged between the output end of the driving motor and the rod end of the rotating rod, and the driving motor and the electromagnetic clutch are electrically connected with the control cabinet.

[0013] Preferably, the blockage cleaning unit comprises a support frame fixedly installed on one side of the top of the separation tank, a plurality of electric push rods are installed on the support frame, and the extension ends of the electric push rods are fixedly connected with an arc-shaped pressing plate, a plurality of air grooves matched with the water inlet groove are formed in the bottom of the arc-shaped pressing plate, an air pump is fixedly installed on the top of the arc-shaped pressing plate, a gas delivery pipe is installed at the air outlet end of the air pump, a hollow column is fixedly installed on the pipe wall of the gas delivery pipe, a plurality of pressing pipes are fixedly and communicatively connected to the lower side wall of the hollow column, a blockage cleaning electric control valve is installed in each of the pressing pipes, an air inlet assembly matched with the pressing pipe is fixedly connected to the pipe wall of each of the support pipes, the airflow delivered by the air pump enters the inside of the corresponding support pipe through the pressing pipe and the corresponding air inlet assembly, and the air pump and the blockage cleaning electric control valve are electrically connected with the control cabinet.

[0014] Preferably, the water outlet detection and discharge mechanism comprises a detection box fixedly installed on the outer side wall of the separation tank, the side wall of the detection box is rotationally connected with a rotating rod, the detection box is in communication with the water drainage groove, a turbidity detection probe is installed on the side wall of the detection box, the turbidity detection probe detects the turbidity of the water flowing through the inside of the detection box, converts the turbidity into an electric signal, and feeds back the electric signal to the control cabinet, a water drainage pipe is fixedly inserted into the side wall of the side of the detection box away from the rotating rod, a shunt pipe is fixedly and communicatively connected to the side wall of the water drainage pipe, a shunt normally-closed electromagnetic valve is installed in the inside of the shunt pipe, a water drainage normally-open electromagnetic valve is installed on the side of the inside of the water drainage pipe close to the water outlet end, and a pump back feeding assembly is installed on the shunt pipe.

[0015] Preferably, the detection assembly comprises a mounting frame fixedly installed on the outer side wall of the separation tank, an encoder is installed on the side wall of the mounting frame, the shaft end of the encoder is in transmission connection with the rod end of a driving rod, and the encoder is used for detecting the rotation angle of the driving rod and converting the rotation angle into an electric signal and feeding back the electric signal to the control cabinet.

[0016] Preferably, each of the air inlet assemblies comprises an L-shaped pipe fixedly inserted into the side wall of the support pipe, the air inlet end of the L-shaped pipe penetrates through the side walls of the arc-shaped sealing plate and the arc-shaped pressing plate and is coaxial with the pressing pipe, an electromagnetic element is installed in the inside of the pressing pipe close to the air outlet end, a support ring is installed in the inside of the L-shaped pipe close to the air inlet end, a circular iron block is installed on the top of the support ring, and an elastic support assembly is jointly installed between the circular iron block and the support ring.

[0017] Preferably, the leakage detection mechanism comprises a plurality of detection tubes in communication with the hollow column, and each detection tube is arranged inside the same side gas groove, and a detection electric control valve is arranged inside each detection tube, and a gas pressure detection probe is arranged on the groove wall of each gas groove.

[0018] Compared with the prior art, the industrial organic wastewater treatment equipment has the advantages that:

[0019] 1. By the cooperation of the biological treatment tank, the separation tank, the control cabinet, the U-shaped groove plate, the overflow channel, the overflow inlet, the roller sleeve, the membrane separation unit, the driving mechanism and the overflow back discharge port, the overflow wastewater in the biological treatment tank drives the membrane separation unit to rotate, and the wastewater flows along the "mouth" shape, which can not only facilitate the aggregation and precipitation of the active sludge and other suspended matters in the wastewater, reduce the amount of active sludge in contact with the membrane separation unit, but also can utilize the wastewater to generate shear force on the surface of the membrane element of the membrane separation unit, so that the attached active sludge is separated, effectively avoiding the excessive difference in pollution of each membrane element, and reducing the possibility of clogging and damage of the membrane element.

[0020] 2. By the back flushing and clogging cleaning of the membrane separation unit based on the overflow amount of wastewater and the amount of active sludge in the wastewater, the possibility of damage of the membrane element can be further reduced, and the service life of the membrane element is prolonged.

[0021] 3. By the water outlet detection and discharge mechanism, the turbidity of the discharged water can be detected, and when the turbidity exceeds the standard, the wastewater is returned to the biological treatment tank, avoiding the direct discharge of the over-standard wastewater, and secondly, when the turbidity of the discharged water exceeds the standard, the leakage detection of the membrane separation unit is automatically performed in cooperation with the clogging cleaning unit, so that the damaged membrane element can be replaced in time. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of an industrial organic wastewater treatment equipment provided by the application;

[0023] Figure 2 is a structural schematic view of a separation tank in an industrial organic wastewater treatment equipment provided by the application;

[0024] Figure 3 is a three-dimensional structural schematic view of a roller sleeve of an industrial organic wastewater treatment equipment provided by the application;

[0025] Figure 4 is a sectional structural schematic view of a roller sleeve of an industrial organic wastewater treatment equipment provided by the application;

[0026] Figure 5 is a structural schematic view of a membrane separation unit of an industrial organic wastewater treatment equipment provided by the application;Figure 1 Enlarged view of the structure of part A in the middle;

[0027] Figure 6 is a schematic view of the internal structure of an arc-shaped pressing plate of an industrial organic wastewater treatment device provided by the present application;

[0028] Figure 7 is a schematic view of the side structure of an arc-shaped pressing plate of an industrial organic wastewater treatment device provided by the present application;

[0029] Figure 8 is a schematic view of the internal top structure of a detection box of an industrial organic wastewater treatment device provided by the present application;

[0030] Figure 9 is a schematic view of the internal structure of a detection box of an industrial organic wastewater treatment device provided by the present application; Figure 6 Enlarged view of the structure of part B in the middle;

[0031] Figure 10 is a schematic view of the internal structure of a detection box of an industrial organic wastewater treatment device provided by the present application; Figure 7 Enlarged view of the structure of part C in the middle.

[0032] In the figure: 1 biological treatment tank, 2 separation tank, 3 control cabinet, 4 U-shaped groove plate, 5 overflow passage, 6 overflow inlet, 7 roller cover, 8 membrane separation unit, 81 rotating rod, 82 mounting sleeve, 83 arc-shaped sealing plate, 84 water inlet groove, 85 support pipe, 86 arc-shaped membrane element, 87 water outlet groove, 88 water inlet hole, 9 driving mechanism, 91 arc-shaped cover, 92 driving rod, 93 impeller, 94 chain transmission assembly, 95 driving motor, 96 electromagnetic clutch, 10 overflow back discharge port, 11 blockage cleaning unit, 111 support frame, 112 electric push rod, 113 arc-shaped pressing plate, 114 air groove, 115 air pump, 116 air conveying pipe, 117 hollow column, 118 pressing pipe, 119 blockage cleaning electric control valve, 12 sludge extraction mechanism, 13 water outlet detection and discharge mechanism, 131 detection box, 132 turbidity detection probe, 133 water discharge pipe, 134 shunt pipe, 135 shunt normally closed electromagnetic valve, 136 water discharge normally open electromagnetic valve, 137 pump back conveying assembly, 14 detection assembly, 141 mounting frame, 142 encoder, 15 air inlet assembly, 151 L-shaped pipe, 152 electromagnetic component, 153 support ring, 154 circular iron block, 155 elastic support assembly, 16 leakage detection mechanism, 161 detection pipe, 162 detection electric control valve, 163 air pressure detection probe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0034] AsFigures 1-10 As shown, an industrial organic wastewater treatment equipment, comprising a biological treatment tank 1 and a separation tank 2 arranged at the side wall of the effluent end of the biological treatment tank 1, the outer side wall of the biological treatment tank 1 is fixedly installed with a control cabinet 3, further comprising: a U-shaped groove plate 4, the U-shaped groove plate 4 is fixedly installed in the interior of the separation tank 2, the U-shaped groove plate 4 and the inner wall of the separation tank 2 form an overflow channel 5, the side wall of the biological treatment tank 1 is provided with an overflow inlet 6 connected with the overflow channel 5, a roller sleeve 7 is arranged in the interior of the separation tank 2, and the roller sleeve 7 is located in the interior of the U-shaped groove plate 4, the side wall of the roller sleeve 7 is provided with a membrane separation unit 8, the side wall of the overflow channel 5 away from the overflow inlet 6 is provided with an overflow return port 10, and the overflow return port 10 is connected with the membrane separation unit 8, the membrane separation unit 8 comprises a rotating rod 81 coaxial with the roller sleeve 7, the rotating rod 81 is rotatably connected with the side wall of the separation tank 2, the rod wall of the rotating rod 81 is fixedly sleeved with a mounting sleeve 82, a plurality of arc-shaped sealing plates 83 are fixedly installed on the inner wall of the roller sleeve 7, and each arc-shaped sealing plate 83 is uniformly distributed in the interior of the roller sleeve 7 in a ring shape, the side wall of each arc-shaped sealing plate 83 and the side wall of the roller sleeve 7 are both provided with a water inlet groove 84, each water inlet groove 84 and the side wall of the mounting sleeve 82 are both fixedly connected with a support pipe 85, the outer side wall of the roller sleeve 7 is provided with a detachable arc-shaped membrane element 86 at the position of each water inlet groove 84, the rod wall of the rotating rod 81 is provided with a drainage groove 87, and the groove wall of the drainage groove 87 is provided with a plurality of water inlet holes 88 at the position in the interior of the mounting sleeve 82, a water outlet detection and distribution mechanism 13 is installed at the water outlet end of the rotating rod 81, the biological treatment tank 1 is provided with aeration equipment, wastewater conveying pipeline and other components, which are mature technologies and will not be described here.

[0035] The water outlet detection and distribution mechanism 13 comprises a detection box 131 fixedly installed on the outer side wall of the separation tank 2, and the side wall of the detection box 131 is rotatably connected with the rotating rod 81, the detection box 131 is connected with the drainage groove 87, the side wall of the detection box 131 is provided with a turbidity detection probe 132, the turbidity detection probe 132 detects the turbidity of the water flowing through the interior of the detection box 131 and converts the turbidity into an electrical signal to feed back to the control cabinet 3, the side wall of the detection box 131 away from the rotating rod 81 is fixedly inserted with a drainage pipe 133, the side wall of the drainage pipe 133 is fixedly connected with a shunt pipe 134, the interior of the shunt pipe 134 is provided with a shunt normally closed electromagnetic valve 135, the interior of the drainage pipe 133 is provided with a drainage normally open electromagnetic valve 136 near the water outlet end, the shunt pipe 134 is provided with a pump back feeding assembly 137, the turbidity detection probe 132, the shunt normally closed electromagnetic valve 135 and the drainage normally open electromagnetic valve 136 are electrically connected with the control cabinet 3, and the pump back feeding assembly 137 at least comprises a water pump, a back feeding pipeline, a check valve, a converging box and other components.

[0036] The inside of the overflow channel 5 is provided with a driving mechanism 9 for driving the membrane separation unit 8 to rotate. The driving mechanism 9 includes an arc-shaped cover 91 fixedly installed on the side wall of the U-shaped groove plate 4 and arranged on one side of the overflow inlet 6. The arc-shaped cover 91 is rotatably connected to the side wall of the separation tank 2 through a driving rod 92 inside the arc-shaped cover 91. The rod wall of the driving rod 92 is fixedly sleeved with an impeller 93 inside the arc-shaped cover 91. After the wastewater enters the overflow channel 5 through the overflow inlet 6, the wastewater hits the blades of the impeller 93 to make the driving rod 92 rotate. The driving rod 92 and the rotating rod 81 are jointly connected through a chain transmission assembly 94. The separation tank 2 is provided with a detection assembly 14 for detecting the rotation angle of the driving rod 92. The outer side wall of the separation tank 2 is provided with a driving motor 95. An electromagnetic clutch 96 is jointly installed between the output end of the driving motor 95 and the rod end of the rotating rod 81. The driving motor 95 and the electromagnetic clutch 96 are electrically connected to the control cabinet 3. When the electromagnetic clutch 96 is powered on, the driving motor 95 can drive the rotating rod 81 to rotate through the electromagnetic clutch 96. When the electromagnetic clutch 96 is powered off, the driving motor 95 cannot drive the rotating rod 81 to rotate.

[0037] The unblocking unit 11 is arranged above the roller sleeve 7. The unblocking unit 11 is used for unblocking the membrane separation unit 8. The unblocking unit 11 includes a support frame 111 fixedly installed on one side of the top of the separation tank 2. The support frame 111 is provided with a plurality of electric push rods 112. The extension ends of the electric push rods 112 are jointly fixedly connected to an arc-shaped pressing plate 113. The bottom of the arc-shaped pressing plate 113 is provided with a plurality of air grooves 114 matched with the water inlet grooves 84. The top of the arc-shaped pressing plate 113 is fixedly installed with a gas pump 115. The gas outlet end of the gas pump 115 is provided with a gas conveying pipe 116. The pipe wall of the gas conveying pipe 116 is fixedly installed with a hollow column 117. The lower side wall of the hollow column 117 is fixedly communicated with a plurality of pressing pipes 118. The interiors of the pressing pipes 118 are each provided with an unblocking electric control valve 119. The pipe walls of the support pipes 85 are each fixedly connected with an air inlet assembly 15 matched with the pressing pipes 118. The airflow conveyed by the gas pump 115 enters the interiors of the corresponding support pipes 85 through the pressing pipes 118 and the corresponding air inlet assemblies 15. The gas pump 115 and the unblocking electric control valve 119 are electrically connected to the control cabinet 3. The hollow column 117 and the air grooves 114 are jointly provided with a leakage detection mechanism 16. The leakage detection mechanism 16 includes a plurality of detection pipes 161 communicated with the hollow column 117. The detection pipes 161 are arranged inside the air grooves 114 on the same side. The interiors of the detection pipes 161 are each provided with a detection electric control valve 162. The groove walls of the air grooves 114 are each provided with an air pressure detection probe 163. The air pressure detection probe 163 can detect the air pressure and feed back an electrical signal to the control cabinet 3 when the air pressure reaches a threshold value.

[0038] Each of the air inlet assemblies 15 comprises an L-shaped pipe 151 fixedly plugged in the side wall of the support pipe 85, and the air inlet end of the L-shaped pipe 151 penetrates the side wall of the arc-shaped sealing plate 83 and the arc-shaped pressing plate 113 and is coaxial with the pressing pipe 118, and an electromagnetic element 152 is installed in the inside of the pressing pipe 118 close to the air outlet end, a support ring 153 is installed in the inside of the L-shaped pipe 151 close to the air inlet end, a circular iron block 154 is installed on the top of the support ring 153, and an elastic support assembly 155 is jointly installed between the circular iron block 154 and the support ring 153, the electromagnetic element 152 generates a magnetic attraction force to the circular iron block 154 when energized, and the elastic support assembly 155 comprises an elastic element, a fixed component and a movable rod, when the electromagnetic element 152 is energized to attract the circular iron block 154 to move upward, the elastic element is compressed, and when the electromagnetic element 152 is de-energized, the elastic element rebounds to restore the circular iron block 154 to abut against the support ring 153.

[0039] The sludge extraction mechanism 12 is arranged at the lower end of the side wall of the separation tank 2 and is used to extract the activated sludge in the separation tank 2, and the sludge extraction mechanism 12 comprises a sludge pump, a gate valve, a sludge conveying pipeline and other components, the bottom of the U-shaped groove plate 4 is also provided with a valve for discharging the sludge accumulated in the U-shaped groove plate 4 into the overflow channel 5, the sludge pump can extract the activated sludge and convey a part of the activated sludge to the biological treatment tank 1 through a part of the sludge conveying pipeline and directly discharge the other part for subsequent treatment, the detection assembly 14 comprises a mounting bracket 141 fixedly installed on the outer side wall of the separation tank 2, the side wall of the mounting bracket 141 is installed with an encoder 142, the shaft end of the encoder 142 is in transmission connection with the rod end of the driving rod 92, and the encoder 142 is used to detect the rotation angle of the driving rod 92 and convert the rotation angle into an electric signal to feed back to the control cabinet 3.

[0040] The operation principle of the present application is described as follows: the wastewater is mixed with the activated sludge in the biological treatment tank 1, the microorganisms in the activated sludge decompose and purify the organic matters in the wastewater, as the wastewater in the biological treatment tank 1 is more and more, when the water level reaches the overflow inlet 6, the wastewater will enter the overflow channel 5 inside through the overflow inlet 6, the wastewater flows along the overflow channel 5, the activated sludge is deposited, and when the wastewater enters the overflow channel 5 inside, the wastewater will impact the impeller 93 when falling, so as to make the driving rod 92 rotate, the driving rod 92 will drive the rotating rod 81 to rotate through the chain transmission assembly 94, the rotating rod 81 will drive the roller sleeve 7 to rotate through the mounting sleeve 82 and the support pipe 85, so as to drive the arc-shaped membrane elements 86 to rotate synchronously, as the wastewater entering the separation tank 2 is more and more, the water level will reach the position of the overflow back outlet 10, at this time, the wastewater will be back discharged into the U-shaped groove plate 4 through the overflow back outlet 10, and as the water level in the U-shaped groove plate 4 is higher and higher, when the water level reaches the position of the rotating rod 81, under the action of pressure, the water will enter the water inlet groove 84 through the arc-shaped membrane elements 86 below the roller sleeve 7, the arc-shaped membrane elements 86 can retain the activated sludge and other impurities in the U-shaped groove plate 4, and the arc-shaped membrane elements 86 rotate with the roller sleeve 7, the arc-shaped membrane elements 86 will impact the wastewater back discharged from the overflow back outlet 10, under the action of shear force, the activated sludge on the surface of the arc-shaped membrane elements 86 will be impacted and separated from the arc-shaped membrane elements 86, so as to reduce the possibility of the activated sludge blocking the arc-shaped membrane elements 86, and the water entering the water inlet groove 84 will enter the water drainage groove 87 through the support pipe 85, the mounting sleeve 82 and the water inlet hole 88, and finally be discharged to the subsequent process through the detection box 131 and the drainage pipe 133;

[0041] During the rotation of the driving rod 92, the encoder 142 detects the number of rotations of the driving rod 92 and converts the rotation angle into an electrical signal and feeds back to the control cabinet 3. When the driving rod 92 rotates 360°, the metering module in the control cabinet 3 meters the number of rotations of the driving rod 92 once. When the number of rotations reaches a certain value (the number of rotations can be set by the control cabinet 3 according to the concentration of organic wastewater and other factors, for example, it is set to 100 rotations), the control cabinet 3 starts the unblocking work. At this time, the control cabinet 3 controls the electromagnetic clutch 96 to work. After the electromagnetic clutch 96 is energized, it can effectively transmit the driving force of the driving motor 95 to the rotating rod 81. At the same time, the control cabinet 3 controls the driving motor 95 to work. The driving motor 95 drives the rotating rod 81 to rotate actively through the electromagnetic clutch 96, and the rotating rod 81 can drive the driving rod 92 to rotate. At this time, the rotation angle of the driving rod 92 is detected by the encoder 142. When the rotation angle of the driving rod 92 is zero, the control cabinet 3 controls the driving motor 95 to stop working. At this time, each arc-shaped membrane element 86 on one side is located directly above the roller sleeve 7. Then, the control cabinet 3 controls each electric push rod 112 to work regularly. The electric push rod 112 pushes the arc-shaped pressing plate 113 downward. When the regular work of the electric push rod 112 is completed, the arc-shaped pressing plate 113 is in sealing abutment with the top of the roller sleeve 7. At this time, each pressing pipe 118 also abuts against the corresponding L-shaped pipe 151. Then, the control cabinet 3 controls the electromagnetic element 152 in each pressing pipe 118 to be energized and work. The electromagnetic element 152 is energized to generate a magnetic attraction force to the circular iron block 154, thereby attracting the circular iron block 154 to move upward. At this time, the annular opening of each supporting ring 153 is opened. Then, the control cabinet 3 controls the unblocking electric control valve 119 in the uppermost each pressing pipe 118 to be energized and opened, and controls the air pump 115 to start working. The air pump 115 transports air into each supporting pipe 85 through each pressing pipe 118 and each L-shaped pipe 151. Since the installation sleeve 82 is filled with water, the airflow can only enter the same side water inlet groove 84 through the supporting pipe 85 and be discharged from the inside to the outside of the arc-shaped membrane element 86. The airflow can blow the arc-shaped membrane element 86 to clean the impurities such as activated sludge that may be attached to the outer surface of the arc-shaped membrane element 86. When the air pump 115 works for 20 seconds, the control cabinet 3 controls the air pump 115, the electromagnetic element 152, and each unblocking electric control valve 119 to stop working, and controls the arc-shaped pressing plate 113 to return to the original position through the electric push rod 112. Then, the control cabinet 3 controls the driving motor 95 to drive the roller sleeve 7 to rotate by a certain angle, so that the next group of arc-shaped membrane elements 86 rotates to the uppermost of the roller sleeve 7, and then the above steps are repeated to clean each arc-shaped membrane element 86. When all the arc-shaped membrane elements 86 are cleaned, the control cabinet 3 controls the electromagnetic clutch 96, the driving motor 95, the unblocking electric control valve 119, the electromagnetic element 152, etc. to be de-energized, and controls the arc-shaped pressing plate 113 to return to the original position after the electric push rod 112 drives the arc-shaped pressing plate 113 to move back. After that, the control cabinet 3 controls the metering module to clear the count of the encoder 142.And the electric signal fed back by the encoder 142 is counted. When the overflow wastewater volume increases or the activated sludge in the wastewater is more, the arc-shaped membrane element 86 will be more likely to be blocked and contaminated due to the increase of the treated wastewater volume and the contact with the activated sludge. At this time, the rotation speed of the impeller 93 driving the driving rod 92 increases, and the measurement speed of the measurement module of the control cabinet 3 synchronously increases, so as to shorten the interval time of cleaning and unblocking the arc-shaped membrane element 86, ensure the timeliness of cleaning and unblocking the arc-shaped membrane element 86, and reduce the possibility of damage to the arc-shaped membrane element 86.

[0042] When the separated water flows out of the drainage groove 87 into the detection box 131, the turbidity detection probe 132 detects the turbidity of the wastewater flowing through by emitting light and measuring the received light intensity. When the turbidity exceeds the threshold value (which can be set by the control cabinet 3, for example, set to 5 NTU), the turbidity detection probe 132 feeds back an electric signal to the control cabinet 3. At this time, the control cabinet 3 controls the shunt normally closed electromagnetic valve 135 and the drainage normally open electromagnetic valve 136 to be energized and work, and at the same time controls the pump back feeding assembly 137 to work. At this time, the wastewater discharged into the drainage pipe 133 is discharged through the shunt pipe 134 and is back fed by the pump back feeding assembly 137 to the biological treatment tank 1, so as to prevent the wastewater with excessive turbidity from being directly discharged (wherein, the pump back feeding assembly 137 at least includes a water pump, a back feeding pipeline, a check valve, a confluence box and the like. The water discharged from the shunt pipe 134 enters the confluence box, the water in the confluence box is pumped out by the water pump, and is back fed to the biological treatment tank 1 through the back feeding pipeline. The check valve can prevent the wastewater in the biological treatment tank 1 from flowing back to the back feeding pipeline);

[0043] Secondly, when the turbidity detection probe 132 feeds back the electric signal to the control cabinet 3, it indicates that the partial arc-shaped membrane element 86 may be damaged and the like, which leads to the poor filtering effect of the arc-shaped membrane element 86 on the activated sludge and the like impurities, thereby increasing the turbidity of the discharged water liquid. Therefore, after the control cabinet 3 receives the electric signal fed back by the turbidity detection probe 132, the control cabinet 3 starts the leakage detection work. At this time, the control cabinet 3 returns the roller sleeve 7 to the original position according to the foregoing steps, that is, one group of arc-shaped membrane elements 86 is located directly above the roller sleeve 7. Then, the arc-shaped pressing plate 113 is pressed against the roller sleeve 7 according to the foregoing steps. Then, the control cabinet 3 controls the detection electric control valve 162 in each detection tube 161 to be started in turn from front to back. Then, the control cabinet 3 controls the air pump 115 to work. The air pump 115 will transport the airflow into the detection tube 161 opened by the detection electric control valve 162 through the hollow column 117. The airflow will enter the internal part of the air groove 114. Then, the airflow enters the support tube 85 on the side through the arc-shaped membrane element 86 on the side. When the arc-shaped membrane element 86 on the side is damaged, the airflow passage at the arc-shaped membrane element 86 becomes larger, so the airflow discharge speed becomes faster. When the arc-shaped membrane element 86 is not damaged, the airflow discharge is limited, and the discharge speed is slow. At this time, the air pressure in the internal part of the air groove 114 is high. Therefore, the air pressure detection probe 163 on the side detects the increase of the air pressure and feeds back the electric signal to the control cabinet 3 when the air pressure increases to the threshold value. The control cabinet 3 receives the electric signal fed back by the air pressure detection probe 163 within 5 seconds when the air pump 115 works, which indicates that the arc-shaped membrane element 86 is not damaged. Conversely, it indicates that the arc-shaped membrane element 86 is damaged. After the detection of the arc-shaped membrane element 86 on one side is completed (that is, after the air pump 115 works for 5 seconds), the control cabinet 3 controls the detection electric control valve 162 on the side to be powered off and immediately controls the detection electric control valve 162 at the next arc-shaped membrane element 86 to be powered on. Then, the next arc-shaped membrane element 86 is detected. When the detection of the uppermost arc-shaped membrane element 86 is completed, the control cabinet 3 controls the driving motor 95 to rotate the roller sleeve 7 by a certain angle. Then, the steps are repeated to detect the arc-shaped membrane element 86 until the leakage detection work of all the arc-shaped membrane elements 86 is completed. When the arc-shaped membrane element 86 is detected to be damaged, the control cabinet 3 records the number corresponding to the arc-shaped membrane element 86 (each arc-shaped membrane element 86 corresponds to a number). The subsequent workers can replace the damaged arc-shaped membrane element 86 by checking the number.

[0044] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An industrial organic wastewater treatment device, comprising a biological treatment tank (1) and a separation tank (2) arranged at the side wall of the effluent end of the biological treatment tank (1), a control cabinet (3) being fixedly installed at the outer side wall of the biological treatment tank (1), characterized in that, Also include: U-shaped groove plate (4) is fixedly installed in the inside of the separation tank (2), the U-shaped groove plate (4) is enclosed with the inner wall of separation tank (2) and forms overflow passage (5), the side wall of the biological treatment tank (1) is provided with overflow inlet (6) communicated with overflow passage (5); Roller cover (7) is arranged in the inside of the separation tank (2), and the roller cover (7) is in the inside of the U-shaped groove plate (4), the side wall of the roller cover (7) is provided with membrane separation unit (8), the inside of the overflow passage (5) is provided with driving mechanism (9), driving mechanism (9) is used for driving membrane separation unit (8) to rotate, the side wall of the overflow passage (5) is provided with overflow return port (10) away from overflow inlet (6) side, and overflow return port (10) is communicated with membrane separation unit (8); The clearing unit (11) is arranged above the roller cover (7), and the clearing unit (11) is used for clearing the membrane separation unit (8); Sludge extraction mechanism (12) is arranged at the lower end of the side wall of the separation tank (2), which is used for extracting activated sludge in the separation tank (2); The membrane separation unit (8) includes a rotating rod (81) coaxial with the roller cover (7), the rotating rod (81) is rotatably connected with the side wall of the separation tank (2), the rod wall of the rotating rod (81) is fixedly sleeved with a mounting sleeve (82), the inner wall of the roller cover (7) is fixedly installed with a plurality of arc-shaped sealing plates (83), and each arc-shaped sealing plate (83) is evenly distributed in the inside of the roller cover (7), the side wall of each arc-shaped sealing plate (83) and the side wall of the roller cover (7) are both provided with water inlet groove (84), each water inlet groove (84) and the side wall of the mounting sleeve (82) are both fixedly connected with support pipe (85), the outer side wall of the roller cover (7) is provided with detachable arc-shaped membrane element (86) at the position of each water inlet groove (84), the rod wall of the rotating rod (81) is provided with drainage groove (87), and a plurality of water inlet holes (88) are formed in the groove wall of the drainage groove (87) at the position inside the mounting sleeve (82), the rotating rod (81) is provided with water outlet detection and distribution mechanism (13) at the water outlet end of the drainage groove (87); The driving mechanism (9) includes an arc-shaped cover (91) fixedly installed on the side wall of the U-shaped groove plate (4), and the arc-shaped cover (91) is arranged on one side of the overflow inlet (6), the inside of the arc-shaped cover (91) is rotationally connected with a driving rod (92) together with the side wall of the separation tank (2), and a impeller (93) is fixedly sleeved on the rod wall of the driving rod (92) at the inside of the arc-shaped cover (91), after the wastewater enters the overflow channel (5) through the overflow inlet (6), the wastewater impacts the blades of the impeller (93) to drive the driving rod (92) to rotate, the driving rod (92) and the rotating rod (81) are drivingly connected together through a chain transmission assembly (94), the separation tank (2) is provided with a detection assembly (14), the detection assembly (14) is used for detecting the rotation angle of the driving rod (92), the outer side wall of the separation tank (2) is provided with a driving motor (95), and an electromagnetic clutch (96) is arranged between the output end of the driving motor (95) and the rod end of the rotating rod (81), and the driving motor (95) and the electromagnetic clutch (96) are electrically connected with the control cabinet (3); The detection assembly (14) includes a mounting bracket (141) fixedly installed on the outer side wall of the separation tank (2), a code encoder (142) is installed on the side wall of the mounting bracket (141), the shaft end of the code encoder (142) is drivingly connected with the rod end of the driving rod (92), the code encoder (142) is used for detecting the rotation angle of the driving rod (92) and converting the rotation angle into an electric signal to feed back to the control cabinet (3); The unblocking unit (11) includes a support frame (111) fixedly installed on one side of the top of the separation tank (2), a plurality of electric push rods (112) are installed on the support frame (111), and the telescopic ends of the electric push rods (112) are fixedly connected together with an arc-shaped pressing plate (113), a plurality of air grooves (114) matched with the water inlet groove (84) are formed in the bottom of the arc-shaped pressing plate (113), a gas pump (115) is fixedly installed on the top of the arc-shaped pressing plate (113), and a gas conveying pipe (116) is installed on the air outlet end of the gas pump (115), a hollow column (117) is fixedly installed on the pipe wall of the gas conveying pipe (116), a plurality of pressing pipes (118) are fixedly communicated with the lower side wall of the hollow column (117), and a unblocking electric control valve (119) is installed in the inside of each pressing pipe (118), the pipe wall of each support pipe (85) is fixedly connected with an air inlet assembly (15) matched with the pressing pipe (118), the airflow conveyed by the gas pump (115) enters the inside of the corresponding support pipe (85) through the pressing pipe (118) and the corresponding air inlet assembly (15), and the gas pump (115) and the unblocking electric control valve (119) are electrically connected with the control cabinet (3), and the hollow column (117) and each air groove (114) are provided with a leakage detection mechanism (16).

2. The industrial organic wastewater treatment equipment according to claim 1, characterized in that, The water outlet detection and drainage mechanism (13) comprises a detection box (131) fixedly installed on the outer side wall of the separation tank (2), and the side wall of the detection box (131) is rotationally connected with the rotating rod (81), the detection box (131) is in communication with the drainage groove (87), the side wall of the detection box (131) is provided with a turbidity detection probe (132), the turbidity detection probe (132) detects the turbidity of water flowing through the inside of the detection box (131) and converts the turbidity into an electric signal to feed back to the control cabinet (3), the side wall of the detection box (131) away from the rotating rod (81) is fixedly inserted with a drain pipe (133), the side wall of the drain pipe (133) is fixedly communicated with a shunt pipe (134), the inside of the shunt pipe (134) is provided with a shunt normally closed electromagnetic valve (135), one side of the inside of the drain pipe (133) close to the water outlet end is provided with a drain normally open electromagnetic valve (136), the shunt pipe (134) is provided with a pump back feeding assembly (137), and the turbidity detection probe (132), the shunt normally closed electromagnetic valve (135) and the drain normally open electromagnetic valve (136) are electrically connected with the control cabinet (3).

3. The industrial organic wastewater treatment equipment according to claim 1, characterized in that, Each of the air inlet assemblies (15) comprises an L-shaped pipe (151) fixedly inserted into the side wall of the support pipe (85), the air inlet end of the L-shaped pipe (151) penetrates through the side wall of the arc-shaped sealing plate (83) and the arc-shaped pressing plate (113) and is coaxial with the pressing pipe (118), an electromagnetic element (152) is installed at the position close to the air outlet end in the inside of the pressing pipe (118), a support ring (153) is installed at the position close to the air inlet end in the inside of the L-shaped pipe (151), a circular iron block (154) is installed on the top of the support ring (153), and an elastic support assembly (155) is jointly installed between the circular iron block (154) and the support ring (153), and the electromagnetic element (152) generates a magnetic attraction force on the circular iron block (154) when energized.

4. The industrial organic wastewater treatment equipment according to claim 1, characterized in that, The leakage detection mechanism (16) comprises a plurality of detection pipes (161) in communication with the hollow column (117), and each of the detection pipes (161) is arranged in the inside of the same side air groove (114), a detection electric control valve (162) is installed in the inside of each of the detection pipes (161), and an air pressure detection probe (163) is installed on the groove wall of each of the air grooves (114).

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