1569results about "Sedimentation settling tanks" patented technology

The utility model relates to the technical field of water treatment, in particular to a multi-phase component multi-stage reinforced mixing device which comprises an outer cylinder, an inner cylinder, a flow guide assembly, a turbulent flow assembly, a mixing and stirring assembly and the like, a first mixing area is formed in the outer cylinder, and feeding is performed in the circumferential tangential direction; a second mixing area provided with a mixing and stirring assembly is formed in the inner cylinder body; the flow guide assembly is located between the first mixing area and the second mixing area; a third mixing area is formed between the outer barrel and the inner barrel, and the turbulent flow assembly is arranged in the third mixing area. The overall structure is compact and simple; sewage is mixed through the rotational flow effect and the centrifugal effect of the first mixing area, meanwhile, components in the sewage are separated and sorted, heavy impurities are centrifugally separated and discharged, and other impurities enter the second mixing area and the third mixing area to be continuously subjected to mechanical mixing, circulating flow mixing and vortex flow mixing reaction; meanwhile, the particle size of the flocculation core is controlled, so that the mixing efficiency is improved, and the utilization rate of the coagulation agent is improved.

The invention relates to a biological and ecological ectopic integrated tail water purification device and method, the device comprises a buffer sedimentation tank at the lower part, an ecological treatment area at the middle part and an aeration tank at the top, tail water at the upper part of the buffer sedimentation tank is conveyed to the aeration tank through a water pump, the bottom is provided with a drain outlet, and the ecological treatment area comprises a benthic organism tank, a microorganism tank and a wetland tank of which the heights are sequentially reduced; the upper part of the wetland pool is not blocked, and tail water flows out from a water outlet of the wetland pool after sequentially passing through the aeration pool, the benthic organism pool, the microorganism pool and the wetland pool. A series of three-dimensional structures such as the vertical flow wetland and the laminated filter tank are adopted, compared with the prior art, the occupied area is greatly reduced, the space utilization rate is increased, and the intensive culture space contradiction is solved.

The utility model discloses a production device for comprehensive utilization of cyclopentadecanolide perfume production wastewater resources, which relates to the technical field of cyclopentadecanolide perfume production and comprises a pretreatment neutralization kettle, an acid-containing wastewater head tank and a 30% sodium hydroxide solution head tank. The acid-containing wastewater head tank and the 30% sodium hydroxide solution head tank are respectively connected with the pre-treatment neutralization kettle through pipelines, and the pre-treatment neutralization kettle is also connected with a low-temperature vacuum evaporator through a pipeline. And the method is not limited by brine concentration.

A method for removing particles from water, the method comprising: supplying gelatinous zooplankton mucus to water comprising particles; allowing formation of particle aggregates in the water by allowing interaction between the particles in the water and the gelatinous zooplankton mucus; removing the particle aggregates from the water by passing the water comprising particle aggregates through a filter configured to receive water comprising particle aggregates and further filter the water; and exiting filtered water from the filter. A system for removing particles from water with the aforementioned method is also provided. Additional embodiments of the system and method for removing particles from water are disclosed herein.

The utility model relates to a coke breeze treatment device for wet quenching of a coke oven, which comprises a clean water tank and a sedimentation tank, the clean water tank and the sedimentation tank are sequentially connected, two sides of the clean water tank and the sedimentation tank are provided with ditches, and the ditches are used for leading quenching water sprayed in a quenching tower back to the coke breeze sedimentation tank to form a closed loop, so as to complete the recycling of the quenching water. Concrete partition walls are arranged between the clean water tank and the sedimentation tank, between the ditches and the clean water tank and between the ditches and the sedimentation tank, openings are formed in the concrete partition walls, and water gates are arranged at the openings and connected with the control unit. The coke powder grabbing device has the advantages that the grabbing device walks on the track and grabs the coke powder of the settling pond and the clean water pond, the coke powder does not need to be cleaned manually, the operation environment of operators is improved, the labor intensity of the operators is reduced, the post of the coke powder grab bucket operator is canceled, manpower is saved, the enterprise cost is reduced, and the working efficiency is improved. Operators are prevented from being in contact with toxic and harmful substances, and the operation environment of the operators is improved.

The invention discloses a mixing and clarifying tank, a liquid level adjusting method thereof and a nuclide recovery and extraction system, which can adjust the liquid level of a two-phase interface in an overflow chamber by adjusting the air pressure difference between the overflow chamber and a clarifying chamber through an air pressure adjusting assembly, thereby avoiding the increase of maintenance workload of the mixing and clarifying tank due to the increase of mechanical moving parts. The mixing and clarifying tank comprises a clarifying tank body and a liquid level adjusting device. A sealing top cover is arranged at the top of the clarifying tank body, and the clarifying tank body comprises a mixing chamber, a clarifying chamber and an overflow chamber which are sequentially communicated from front to back; the overflow chamber is defined by a front heavy-phase flow baffle, a rear sealing baffle and a sealing top cover. The liquid level adjusting device comprises an air pressure adjusting assembly. The air pressure adjusting assembly is arranged in the overflow chamber and used for adjusting the air pressure difference between the overflow chamber and the clarifying chamber so as to adjust the liquid level difference between the highest liquid level in the overflow chamber and the liquid level of the two-phase interface in the overflow chamber, and then the liquid level of the two-phase interface in the overflow chamber is adjusted to the target liquid level.

A launder cover system for reducing or eliminating sunlight exposure so as to prevent algae growth in a tank such as a clarifier tank. The launder cover system generally includes a plurality of support members and a plurality of launder covers which are each independently pivotably connected to a tank wall of a tank, such as by using a mount. The support members are each pivotably connected to the tank wall by a pivot connector and the launder covers are each pivotably connected to the tank wall by a hinge connector. Each support member is positioned between a pair of launder covers, and each launder cover is positioned between a pair of support members. The support members function to support the launder covers in a raised or lowered position. A launder support may be connected to the channel wall to support the launder covers in their lowered positions.

The utility model provides an efficient desulfurization wastewater clarification device which comprises a clarification tank main body, and an upper heat exchanger, a heat exchange tube and a lower heat exchanger are sequentially arranged in an inner cavity of the clarification tank main body from top to bottom; the bottom of the heat exchange pipe is connected with a pipeline bracket, and clarification tank filler is arranged at the top of the heat exchange pipe; wherein the other end of the pipeline bracket is connected with the bottom of a sedimentation tank in the clarification tank main body; a sludge outlet is formed in the bottom of the sedimentation tank; the device can automatically clean and operate, is high in automation degree, and can specifically and efficiently precipitate desulfurization wastewater compared with a traditional precipitation tank; strong brine is used as a heat exchange medium for heat exchange, so that the temperature of the strong brine is increased, heat needed by temperature rise of the rear-end evaporation section is reduced, and the energy-saving effect is achieved.

The utility model relates to the technical field of sewage treatment equipment, in particular to an electrolytic biological filter system for rapid treatment of overflow pollution, which comprises a bioelectrochemical system and a biological aerated filter system, the bioelectrochemical system comprises a tank body I, a biological anode and a biological cathode are arranged in the tank body I, and the biological anode and the biological cathode are arranged in the tank body II. The biological anode and the biological cathode are connected to a power supply, the biological aerated filter system comprises a tank body II, sewage treated by the tank body I enters the tank body II, an aeration device, a filtering device and a clear water outlet device are arranged in the tank body II, and the biological electrochemical system is coupled with the biological aerated filter through the aeration device, the filtering device and the clear water outlet device. The electrolytic biological filter system for rapidly treating overflow pollution is formed, the rapid electron transfer characteristic of a bioelectrochemical system is fully utilized, the denitrification rate of the biological aerated filter is increased, the treatment time can be greatly shortened under the same denitrification requirement, and the effect of rapidly treating overflow pollution in emergency is achieved.

The invention relates to the technical field of water treatment, in particular to a grid for a flocculation basin, a flocculation module and an assembled flocculation basin. The grid for the flocculation basin comprises a body, a plurality of rotational flow fins and a plurality of first arc-shaped fins, a plurality of meshes are formed in the body, the meshes are arranged in an array mode, and each mesh pair corresponds to a plurality of rotational flow fins and a plurality of first arc-shaped fins; wherein the rotational flow fins corresponding to the meshes are connected to the upper side of the body and arranged around the edges of the meshes at intervals, and the rotational flow fins bend and extend from the edges of the meshes to the areas outside the meshes; the first arc-shaped fins corresponding to the meshes are connected to the lower side of the body and arranged around the edges of the meshes at intervals. By adopting the grid for the flocculation basin, water flow can form streaming after passing through the fins, and a vortex area is formed behind the fins, so that a proper hydraulic condition is provided for flocculation, the effective collision frequency of particles is increased, and the flocculation effect is optimized.

A pipe sedimentation plant comprises an inlet shaft (4), an outlet shaft (34), at least one intermediate shaft (18, 28, 30, 32) which is fluidically connected to the inlet shaft (4) and to the outlet shaft (34) by means of fluid lines (9, 15, 25, 29, 31, 33), and at least one backwater element (14, 21, 22, 24) for backing up a fluid flow in the pipe sedimentation plant (1), wherein the at least one backwater element (14, 21, 22, 24) is arranged on the at least one intermediate shaft (18, 28, 30, 32) and / or on at least one of the fluid lines (9, 15, 25, 31).

The invention relates to the technical field of sewage treatment, in particular to an assembly type stacked hydraulic grit chamber for a sewage treatment plant. The assembly type stacked disc hydraulic grit chamber for the sewage treatment plant comprises a stacked disc module device, an unpowered water distribution device and a backwashing and fluidizing device, the stacked disc module device comprises a plurality of stacked discs which are sequentially arranged at intervals in the vertical direction, a water outlet channel is formed between every two adjacent stacked discs, and a water outlet is formed in the inner side of each stacked disc. According to the assembly type stacked disc hydraulic grit chamber for the sewage treatment plant, water flow is sprayed to the inner surface of the stacked disc through the cleaning disc assembly so as to wash the inner surface of the stacked disc, the automatic backwashing function is achieved, the problem of sand accumulation of the stacked disc is effectively solved, and sand hardening is prevented. Through the automatic backwashing function, the manual cleaning frequency and strength are greatly reduced, the manual labor intensity and potential safety hazards are reduced, the stacked trays are prevented from being blocked, and the service life of the stacked trays is prolonged.

The invention provides a grit chamber, and belongs to the technical field of sewage treatment.The grit chamber comprises a chamber body and at least one grit setting assembly, the grit setting assembly is arranged in the middle of the chamber body, a plurality of grit setting channels are formed in the grit setting assembly, and the grit setting channels are obliquely arranged. The settling area is divided into multiple layers of shallow layer units by the multiple sand settling channels in the sand settling assembly, the effective settling area is greatly increased, the particle settling distance is shortened, and therefore the settling speed is increased, sand can be removed only by settling for a very short vertical distance, the fine sand removing capacity of the sand settling tank is improved, and the sand settling efficiency is improved. And the particle size of the removed object in the grit chamber is reduced to be less than 200 mu m.

The invention relates to the technical field, and discloses a product dehydration optimization method based on an inclined box dense grader and an HNS ultrafilter, which comprises the following steps: introducing slurry into a vibration inclined box dense grader through a feed distribution system, and dynamically adjusting the vibration frequency, amplitude and period by combining an intermittent vibration system and a slurry concentration detection control system, the concentration self-adaptive control is realized; overflowing slurry is conveyed into an HNS ultrafilter through a slurry conveying system, and efficient separation is achieved through a centrifugal force field and cross flow filtration; the filtrate is shunted by a clear water self-circulation system and is used for process recycling and equipment cleaning; and the concentrated discharged slurry of the HNS ultrafilter and the underflow of the thickener are mixed and output or return to the previous process. The general drawing arrangement is optimized, the slurry dehydration efficiency is improved, and valuable metal is recycled to the maximum extent.

The invention belongs to the technical field of sewage treatment, and particularly relates to a water treatment sedimentation tank communication port self-adaptive flow adjusting device which comprises a tank body and a partition wall arranged in the tank body, and a communication hole is formed in the side wall of the partition wall. The valve body frame is fixedly arranged in the communicating hole, and a water body channel is formed in the valve body frame; and the flow adjusting mechanism is arranged in the water body channel, and the flow adjusting mechanism is used for changing the overflowing area of the water body channel. The water level difference of the two sides of the partition wall is sensed through the pressure sensing mechanism, the linkage transmission mechanism drives the flow adjusting mechanism to dynamically change the overflowing area of the water channel, self-adaptive flow adjustment is achieved, flow fluctuation can be coped, the water level can be balanced, and the sedimentation time and efficiency are guaranteed; meanwhile, the internal pressure sensing diaphragm and the filter screen are convenient to clean or replace, and the maintenance difficulty is reduced; in addition, the cost is low, the manual operation and maintenance burden is reduced, and the problem of high failure rate of an electric or pneumatic device is avoided.

A hydrodynamic separator is configured to separate a liquid having dispersed particles. The separator has a substrate and a liquid channel defined by the substrate, where the liquid channel is configured to receive a liquid having a Reynolds number (Re) within the channel. The liquid channel has an inlet and an outlet and is curved to define an inner radius (RC). The liquid channel has a liquid channel length (LD) along the curve and a rectangular cross-section along the length of the curve, where the rectangular cross-section has a height, a width (w), and a hydraulic diameter (DH). The liquid channel length (LD) is greater than or equal to a linear focusing length (Lf), andLf=1598.8Rc⁢α⁢w2Re⁢DH3+6.4,where a is the particle diameter. The liquid channel length (LD) is greater than or equal to a linear focusing length (Lf), andLf=1⁢5⁢6.2⁢RcRe ⁢(wDH)2+24.3.In various embodiments the liquid channel length (LD) is greater than or equal to a linear focusing length (Lf), andLf=Re⁢w28⁢DH+2⁢4.3.

The utility model relates to a sewage treatment tank using integrated sedimentation tanks, which comprises an anaerobic tank and an aerobic tank which are communicated with each other, an aeration device is arranged at the bottom of the aerobic tank, the sewage treatment tank further comprises at least two integrated sedimentation tanks, the integrated sedimentation tanks are sequentially arranged in the aerobic tank along the length direction of the aerobic tank, and the integrated sedimentation tanks are arranged in the aerobic tank. Each integrated sedimentation tank comprises a sedimentation tank body, a water passing hole communicated with the aerobic tank is formed in the side wall of the sedimentation tank body, inclined tube filler is arranged in the sedimentation tank body, a water outlet groove extending in the width direction of the aerobic tank is formed in the upper side of the inclined tube filler, and a sludge falling opening spaced from the bottom of the aerobic tank is formed in the bottom of the sedimentation tank body. According to the sewage treatment device provided by the utility model, the integrated sedimentation tank is arranged in the aerobic tank, so that the occupied space of the sewage treatment tank is reduced.

The utility model relates to a bucket type sedimentation tank, including barrel, mud-water separation plate, water inlet pipe, deslagging pipe and water outlet pipe, the mud-water separation plate is bucket-shaped and has a first big mouth end and a first small mouth end, a plurality of mud-water separation plates are arranged in the barrel at intervals along the first direction to form a mud-water separation zone, the first big mouth end is spaced apart from the inner wall surface of the barrel, and the first small mouth end is spaced apart from the inner wall surface of the barrel. The water inlet pipe comprises a connecting section and a water distribution section which are connected, the connecting section is arranged on the barrel, the water distribution section is arranged in the first small opening ends of the mud-water separation plates in a penetrating mode, the water distribution section faces the end of the barrel, and a plurality of water distribution openings are formed in the water distribution section at intervals and located in the mud-water separation area; and at least one water distribution opening is correspondingly formed between every two adjacent mud-water separation plates. According to the bucket type sedimentation tank disclosed by the utility model, mud-water separation is realized by adopting central multi-point water feeding and bucket type sedimentation, so that the uniform water distribution capability is improved, the disturbance to a sedimentation area is reduced, the mud-water separation effect is improved, and the problem that a mud-water separation system in the related technology occupies a large area is solved.

The utility model discloses a deep cone paste thickener for a mine tailing filling system, and belongs to the technical field of thickeners. Comprising a shell, and the shell comprises a cylindrical bin, a cone bin located at the bottom of the cylindrical bin and a conical opening portion located at the bottom of the cone bin; a bridge is horizontally erected on the top face of the cylinder bin, a hydraulic motor speed reducer is arranged in the middle of the top face of the bridge, the output end of the hydraulic motor speed reducer is detachably and fixedly connected with a rotating rod, the bottom end of the rotating rod is detachably and fixedly connected with a scraping and collecting mechanism, and the scraping and collecting mechanism is located in the cone bin. And the bottom end of the scraping and collecting mechanism is detachably and fixedly connected with an anti-blocking mechanism. By arranging the anti-blocking mechanism, high-concentration tailing slurry is in a flowing state and is not easy to condense in the conical opening part, meanwhile, the flowing high-concentration tailing slurry is also easy to discharge from the discharge pipe on the periphery of the conical opening part, and the phenomenon that the discharge pipe is blocked is not easy to occur.

A wastewater recycling device, comprising a sedimentation mechanism (1), a sludge discharge mechanism (2) and a cleaning mechanism (3). The sedimentation mechanism (1) comprises a sedimentation tank (101), wherein the sedimentation tank (101) is provided with a first partition plate (103), a second partition plate (106), a third partition plate (107) and a collection plate (102). The sludge discharge mechanism (2) comprises a shielding disk (215) fixed to a sludge discharge pipe (213) by means of a rotary blade (214), rotating fan blades (203) rotationally connected inside a water intake pipe (202), and an associated transmission structure. The cleaning mechanism (3) comprises a piston plate (301) movably connected to the inner wall of the first partition plate (103), a compression spring (303) fixedly connected to the bottom of the piston plate (301), and a discharge chute (304) located on a side wall of the sedimentation tank (101); and further comprises a rotary cleaning rod (308) connected to a first floating block (305), and a scraper (310) connected to a second floating block (309).

The invention relates to the technical field of wastewater treatment, and discloses an efficient traditional Chinese medicine wastewater treatment integrated device which comprises a wastewater treatment pond, a wedge block is arranged at the bottom of the wastewater treatment pond, the interior of the wastewater treatment pond is divided into three parts through partition plates, and the three parts correspond to a presetting pond, a first coagulation pond and a second coagulation pond respectively. Micro flocs generated in the coagulating basin firstly enter a static precipitation stage, meanwhile, the wedge-shaped block basin bottom prevents the flocs from being deposited and hardened at the basin bottom, meanwhile, high-concentration flocs at the lower end are forcibly pumped into a subsequent coagulating basin by means of a residual turbulent flow anhydrous pump in the basin, flocs are prevented from being broken due to shearing force of a traditional water pump and turbulent flow of a pipeline, and then incomplete gears are meshed with gears, so that the flocculation effect is improved. The baffle is driven by the gear belt to turn over synchronously, high-concentration flocs left on the inclined surface are pushed to a subsequent pool body in a full amount, and the flocs at the bottom of the pool are accurately extracted by matching with a water suction port of the conveying pipe which is parallel to the wedge-shaped block, so that the flocs integration rate is remarkably increased, and the curing time is shortened.

The utility model discloses a dust removal device for reducing particulate matters in a quenching tower, which belongs to the technical field of wet quenching dust removal and comprises four stages of serial dust removal structures arranged in the quenching tower from bottom to top in sequence. Comprising a first-stage dust removal device, a second-stage dust removal device, a third-stage dust removal device and a fourth-stage dust removal device, the first-stage dust removal device is arranged above the top of the quenching car and comprises an upper-layer dust removal baffle group, a middle-layer dust removal baffle group and a lower-layer dust removal baffle group, each layer of dust removal baffle group comprises a plurality of dust removal baffles which are arranged in parallel, and each dust removal baffle is fixedly connected with the inner wall of a quenching tower; the third-stage dust removal device comprises a louvered dust removal plate, the fourth-stage dust removal device comprises a water mist spraying system, and the technical problems that an existing coke quenching tower is low in dust removal efficiency, poor in particulate matter stage treatment capacity, insufficient in harmful gas treatment and the like are effectively solved.

The application discloses a domestic sewage treatment device, which comprises an aeration tank, a first steel pipe, an aeration head, a gas blowing device and a driving mechanism. One side of the aeration tank is provided with a matching hole penetrating through the inside and outside of the aeration tank. The first steel pipe penetrates through the matching hole and is in sealed sliding connection with the matching hole. The inner end of the first steel pipe is a blocking end capable of blocking the matching hole. The outer end of the first steel pipe is a connecting end. The upper side of the first steel pipe is provided with a groove. The aeration head is installed in the groove and is in communication with the first steel pipe. The aeration head is provided with a first state. When the aeration head is in the first state, the upper end of the aeration head is lower than the notch of the groove. The driving mechanism is connected with the connecting end of the first steel pipe and can drive the first steel pipe to move axially so that the aeration mechanism moves to the outside of the aeration tank. The application discloses a domestic sewage treatment device, and maintenance or replacement of the aeration head is more convenient.

The invention provides a sedimentation system based on intelligent monitoring, which comprises a water quality monitoring device used for collecting multi-dimensional water quality parameter data of a sedimentation tank in real time and transmitting the data to a central processing platform; the digital twinborn module is used for constructing and operating a dynamic digital twinborn body of the sedimentation tank, performing state synchronization according to the received multi-dimensional water quality parameter data, and performing simulation deduction of future operation effects on different input dredging strategies to obtain predicted values of various performance indexes; the adaptive optimization control module is used for receiving the multi-dimensional water quality parameter data and driving the digital twin module to update the state to generate a plurality of candidate dredging strategies; and the candidate dredging strategies are input into the digital twin module for simulation deduction, the optimal strategy is selected from the candidate dredging strategies according to the obtained predicted values of all performance indexes and converted into a control instruction, the control instruction is sent to the dredging device, the control instruction is responded, corresponding dredging operation is executed, and the dredging efficiency and the intelligent level are improved.

The device comprises a pretreatment unit and a PLC (Programmable Logic Controller), a denitrification reaction unit is arranged on one side of the pretreatment unit, and a deep denitrification unit is arranged on one side of the denitrification reaction unit. According to the utility model, the biogas slurry is flocculated through the flocculation tank, flocculate can be stood and settled through the settling tank, so that part of SS and COD can be removed, the biogas slurry sequentially passes through the three-phase separator, the carrier and the activated sludge to react, primary denitrification is realized, the denitrified biogas slurry can circulate in the reaction tank through the cooperation of the spray header and the transmission unit, and the denitrification effect is improved. The biogas slurry is fully reacted through the composite filler, so that deep denitrification is achieved, by adopting the activated sludge required by anaerobic ammonia oxidation, the carrier adsorbed with the denitrification biological strain and the composite filler, low-carbon-nitrogen-ratio wastewater can be denitrified under the condition that a carbon source does not need to be added, so that the project wastewater can be discharged up to the standard, and the wastewater can be recycled. And the operation cost of wastewater treatment can be saved.

The invention discloses a rural domestic sewage treatment system and method for controlling an A2O reaction process based on energy detection. The system is provided with a grating well, a regulating tank, an anaerobic-anoxic zone, an aerobic zone and a sedimentation tank, and is equipped with a monitoring module for monitoring the temperature and water level of sewage in each section so as to obtain volume information. The control method adopts a long short-term memory (LSTM) neural network model to perform reaction process prediction, and specifically comprises the following steps: firstly, performing normalization processing on monitored temperature and water level data, and constructing an input feature vector; defining an LSTM model structure and dividing a data set; model training is completed through forward propagation calculation, loss function calculation and back propagation updating parameters; and finally, predicting anaerobic, anoxic and aerobic zone reaction processes by using the trained model, and adjusting parameters such as an internal reflux ratio according to a prediction result. The method can accurately grasp the reaction process, is suitable for the characteristic of large fluctuation of the quality and quantity of rural sewage, improves the sewage treatment effect, reduces the operation and maintenance cost, and achieves data-driven intelligent decision making.

The utility model discloses a sodium humate purifying device which comprises a hopper, a water inlet and a water outlet, the reaction assembly is assembled at the bottom of the hopper and is used for producing sodium humate; the precipitation assembly is assembled on one side of the reaction assembly and is used for precipitating the reacted solution; the acid water treatment assembly is assembled on one side of the precipitation assembly and is used for absorbing acid liquor; when the sodium humate purifying device is used, firstly, a sodium humate solution subjected to primary treatment is fed into the neutralizing tank through the connecting pipe, at the moment, the pH value of the solution is monitored in real time through the pH value detector, and if the pH value does not meet the requirement, the adding amount of the neutralizing solution in the input pipe is adjusted through the control valve; the sodium humate purifying and drying barrel is used for purifying sodium humate, the solution reaches a proper pH value, then the solution enters the heat preservation barrel through the conveying pipe, the electromagnetic heater is used for heating and drying the solution, the purified sodium humate is dried in the purifying and drying barrel, and finally the product is taken out through the discharging port.

The invention provides a self-adaptive control system and method for a mud scraper of a secondary sedimentation tank based on computer vision and turbidity sensing. The self-adaptive control system and method are used for self-adaptive energy-saving control of the mud scraper of the secondary sedimentation tank in an urban sewage treatment plant. The method comprises the following steps: acquiring an image of a sludge accumulation area at the bottom of a tank in real time through an image acquisition device erected above a secondary sedimentation tank; identifying a sludge area by using a YOLO thickness detection model, estimating the visual thickness of sludge accumulation, comparing the visual thickness with a preset threshold value, a start-stop threshold value and a thickness interval threshold value, when the visual thickness reaches or exceeds the start-stop threshold value, starting the sludge scraper, and adjusting the running speed of the sludge scraper in a grading manner according to the interval to which the visual thickness belongs; and then the mud scraping device pauses the image recognition function, an online turbidity sensor installed at the effluent weir is started to monitor the turbidity of the water body, and the mud scraper is controlled to stop running according to the turbidity of the effluent water. The self-adaptive control of the mud scraper of the secondary sedimentation tank is realized, and the purposes of saving energy, reducing emission and prolonging the service life of the mud scraper are achieved.

The utility model belongs to a radial-flow sedimentation tank water outlet channel self-cleaning device which comprises a peripheral transmission mud scraper and a water outlet channel, a brush support is fixed on a peripheral transmission mud scraper rack body, the bottom of the brush support is detachably connected with an unequal-length U-shaped plate, a brush is fixed on the outer wall of the unequal-length U-shaped plate, and the outer wall of the unequal-length U-shaped plate is detachably connected with the brush support. The lower portion of the unequal-length U-shaped plate is arranged in the water outlet channel, and the brush makes contact with the inner wall of the water outlet channel. The self-cleaning device has the beneficial effect that the self-cleaning function of the water outlet channel of the radial-flow sedimentation tank is realized on the premise of not additionally arranging power equipment. The labor cost for cleaning the sedimentation tank is reduced, and the working efficiency is improved.

The utility model discloses a kind of wet-process phosphoric acid purification devices, it relates to wet-process phosphoric acid purification technical field, the device includes frame body and the mixing box being set on frame body, mixing box is provided with liquid inlet pipe being communicated with its own inside, stirring mechanism is provided in mixing box;Frame body is also provided with at least one group of distillation mechanism, and the distillation chamber of distillation mechanism is communicated with mixing box by sedimentation pipe;After phosphoric acid and solvent are fully mixed in mixing box, the liquid formed flows into sedimentation pipe and is deposited, then flows into the distillation chamber of distillation mechanism and is distilled. By installing mixing box, sedimentation pipe and distillation mechanism on frame body, the stirring mechanism installed in mixing box can quickly mix phosphoric acid and the solvent for removing impurities in phosphoric acid, then is discharged into sedimentation pipe and is deposited, finally, the phosphoric acid liquid after deposition flows into distillation chamber and is rapidly distilled, then is condensed, to obtain phosphoric acid liquid after extraction purification.