950 results about "Sand filter" patented technology

The invention discloses a Yolov8-Seg-based sand filter working condition evaluation method, relates to the technical field of industrial sewage treatment, and solves the technical problems that an existing sand filter working condition evaluation model is relatively large, the operation speed is low and the recognition efficiency is relatively low. Comprising the following steps: 1, acquiring an inspection image; 2, preprocessing the inspection image to obtain an original image; 3, reconstructing the original image based on the hexagonal pyramid model to obtain an input image; inputting the input image into the image recognition model to obtain a recognition result image; wherein the image recognition model is constructed based on a Yov8-seg model improved by a GSA module; 4, evaluating the working condition of the sand filter according to the identification result map; corresponding image defects can be recognized more easily after the inspection images collected under different illumination and different environment conditions are correspondingly processed, and the recognition precision of the network is improved; and thus, the accuracy of evaluating the working state of the sand filter is improved.

The invention relates to the technical field of perforation well completion and reservoir transformation, in particular to a self-anchoring depth-setting penetrating sand blasting perforation and plug removal integrated device and a using method. According to the technical scheme, an upper leather cup and a lower anchoring leather cup are arranged on the outer wall of the lower middle portion of a pump body outer pipe, a hydraulic self-anchoring device is arranged between the upper leather cup and the lower anchoring leather cup, a perforation nozzle is arranged on the lower side of the lower anchoring leather cup, and a returned sand liquid inlet is formed in the bottom of the pump body outer pipe; the top of the center pipe assembly is provided with a sand filtering flow dividing body, the middle of the center pipe assembly is connected with the pump body outer pipe through a bridge type flow guiding device, a nozzle, a diffusion cavity and a mixed liquid discharging flow channel are formed between the pump core and the inner wall of the center pipe assembly, and the lower end of the mixed liquid discharging flow channel is communicated with the mixed liquid outlet. The anti-creeping sand blasting perforation device has the beneficial effects that the anti-creeping function during sand blasting perforation can be realized, deep penetration sand blasting perforation can be realized, and the wall surface of a shot hole is smooth and regular and does not damage a sleeve; operation is easy and convenient, construction is simple and reliable, and economy and efficiency are achieved.

The utility model belongs to the technical field of seawater treatment, particularly relates to a portable seawater desalination device, and aims to solve the problems that in order to meet the fresh water requirement of long-term navigation, a fresh water generator is installed, the volume of the fresh water generator is large, the weight of the fresh water generator can reach more than one ton, and a distillation method adopted by the fresh water generator is that a vacuum pump is arranged to form a low-pressure environment, so that seawater is easier to evaporate. In order to solve the problems of high energy consumption and high requirements on devices in the prior art, the utility model provides the following scheme: the device comprises a frame, and a seawater tank for containing seawater is fixed at the side end of the frame; a filtering part is arranged in the frame and comprises a sand filter, a carbon filter, a softener and a precision filter, the sand filter is communicated with the carbon filter, the carbon filter is communicated with the softener, and the softener is communicated with the precision filter; solar energy is adopted as an energy supply device, no additional electric energy consumption is generated, and the effect of saving energy is achieved; the portable device is convenient and easy to carry, and the space ratio and the load of the ship can be reduced.

The present invention discloses a sampling mechanism for detecting sediment content in water conservancy projects, belonging to the technical field of sampling mechanisms. The present invention comprises a support platform and a servo motor mounted on the upper end of the support platform, wherein the output end of the servo motor is connected to a sampling barrel, a retention hole is formed on the side of the upper end of the sampling barrel, and a water leakage cover is fixed inside the sampling barrel. A protective bottom cover is provided at the bottom of the sampling barrel, and a drain pipe is installed on the protective bottom cover. A first cylinder is mounted on the upper end of the support platform, and the telescopic end of the first cylinder is interconnected by a guide connecting rod and a closed ring, the closed ring is used to control the opening and closing of the retention hole, and a sand filter cloth is provided inside the water leakage cover. When sampling water samples, the sampling mechanism for detecting sediment content in water conservancy projects facilitates stirring of the surrounding water area to be sampled, thereby equalizing the sediment content of the water area and improving the accuracy of subsequent test results.

The utility model discloses a urechis unicinctus sand filter, and belongs to the technical field of aquaculture tail water treatment. The sand filter comprises a sand filter body, a hollow overflow layer and an outer protective layer, the sand filter body is divided into three layers, namely a fine sand layer, a coarse sand layer and a cobblestone layer, through a urechis unicinctus culture box supporting sieve plate, a coarse sand screen and a cobblestone screen. And the fine sand layer is divided into four fan-shaped sea worm breeding boxes, the side surfaces and the bottoms of the box bodies are permeable screen-shaped, and arc-shaped protective plates are arranged on top plates of the box bodies, are folded at the upper edge of the sand filter body and are used for overflow drainage. And the sand filter is used for filtering large particles in the aquaculture tail water by absorbing residual bait and excrement in the aquaculture tail water by using the sea intestines and filtering the large particles in the aquaculture tail water by using fine sand. The device organically integrates machinery, microorganisms and organisms to purify the culture tail water, is time-saving and labor-saving, is suitable for filtering natural seawater or factory-like and pond seedling culture and culture tail water, and is wide in application range; the utilization rate and the output rate of unit seawater resources are improved, and waste of water resources is avoided.

The invention relates to the technical field of water treatment, in particular to a continuous quicksand filter, and provides the continuous quicksand filter aiming at the problems in the prior art, the height position of an air box is reasonably designed, the structure of the air box is optimized, the air stripping effect of compressed air is fully utilized, and an air pipe is prevented from being blocked; the structure of an existing sand washer is improved, the movement path of filter materials in the sand washer is prolonged, collision among the filter materials is increased, the dirty sand cleaning effect is improved, the three-phase separation effect is improved, and the regeneration and reuse rate of the filter materials is increased; meanwhile, the structure of the water distributor is optimized, the water distribution amount in unit cross sectional area is equal, the filtering height of the sand bed is fully utilized, and the filtering effect is improved.

The utility model discloses a continuous backwashing sand filtration device which comprises a sand filtration tank, a liquid inlet pipeline is arranged on one side of the sand filtration tank, a liquid outlet pipeline is arranged on the other side of the sand filtration tank, a liquid separation seat is arranged at the end, extending into the sand filtration tank, of the liquid inlet pipeline, a sand washing mechanism is arranged in the sand filtration tank, and the sand washing mechanism comprises a sand washing assembly and a stirring assembly. The sand washing assembly is arranged in the sand filter tank and comprises a sand washing box fixedly arranged at the top of the sand filter tank; the sand suction pipe is fixedly arranged in the sand washing box, and the liquid inlet pipeline and the liquid separation seat are both arranged on the outer side of the bottom of the sand suction pipe; the sand outlet pipe is fixedly arranged at the bottom of the sand washing box, the stirring assembly is arranged in the sand washing assembly and used for stirring the interior of the sand washing box and the bottom of the sand suction pipe, pollutants and water are discharged from the liquid outlet holes through rotation of the filter box, and centrifugal force generated during rotation can also prevent gravel from hardening; and the stirring rod is driven by the rotating rod to rotate to stir the bottom of the sand suction pipe.

The utility model relates to a garbage three-phase synchronous treatment system which comprises a garbage storage pool, a garbage transfer device, a primary screening mechanism, an ultra-high-temperature biological aerated filter and a secondary screening mechanism, and the primary screening mechanism comprises a shaftless screw feeder, a ball mill and a conical drum dewatering screen which are communicated with one another; the garbage transfer device is arranged between the garbage storage pool and the shaftless screw feeder, the ultra-high-temperature biological aerated filter is communicated with the conical drum dewatering screen, the secondary screening mechanism comprises a cyclone desander, a slurry dewatering screen and a screw squeezing dehydrator which are communicated with one another, the cyclone desander is communicated with the ultra-high-temperature biological aerated filter, and the slurry dewatering screen is communicated with the screw squeezing dehydrator. And the cyclone desander, the slurry dewatering screen and the screw squeezing dehydrator are all communicated with the shaftless screw feeder. According to the invention, the household garbage can be prepared into regenerated plastic particles or RDF fuel, can be used as asphalt and plastic filler, and can be used for producing various plastic profiles, road bricks and the like, so that the purposes of zero landfill and zero incineration are achieved, and the environmental benefit, the economic benefit and the carbon emission reduction effect are remarkable.

The invention discloses a treatment system for removing micro-plastics in water. The treatment system comprises an adsorption enrichment unit, an effluent temporary storage unit, an advanced oxidation unit, a control unit, first dosing equipment, second dosing equipment and an artificial wetland unit, the adsorption enrichment unit comprises a water inlet tank, a first sand filter tank, an adsorption tank, a second sand filter tank and a water outlet tank along the water flow direction; the effluent temporary storage unit comprises a first temporary storage tank and a second temporary storage tank; the advanced oxidation unit comprises a treatment tank, and a stirrer and an ultraviolet lamp tube which are arranged in the treatment tank; the water outlet tank is communicated with the first temporary storage tank through a first water outlet pipe, and the first temporary storage tank discharges water into the constructed wetland unit through a first drainage pipe; the first dosing equipment is communicated with the water outlet tank through a first dosing pipe, and the second dosing equipment is communicated with the treatment tank through a second dosing pipe; the water inlet tank is communicated with the second temporary storage tank through a second water outlet pipe, the second temporary storage tank is communicated with the treatment tank through a third water outlet pipe, and the treatment tank discharges water into the constructed wetland unit through a second drainage pipe.

The utility model relates to the technical field of water pump filtration, in particular to a water pump for filtering silt, which comprises a water pump body and is characterized in that a water pump rotor is arranged at the output end of the water pump body and is fixedly connected with a silt filtering component for filtering fine silt; and the outer side of the sediment filtering assembly is coated with an outer layer filtering assembly for filtering coarse impurities. The scraper blade is driven by the water pump rotor to rotate, fine silt gathered on the filter screen can be filtered through rotation of the scraper blade so as to enter the water cavity, the water cavity is arranged to prevent the rotation of the scraper blade from influencing the water inlet amount of the water pump body so as to stabilize output, large impurities are isolated outside when water flow passes through the space between the partition plate and the baffle, and the water flow is prevented from entering the water cavity. And the baffle can prevent impurities from directly impacting the filter screen to cause damage to the filter screen, and water inflow blockage can be effectively avoided.

The utility model provides a filter structure of a sand filter for sewage treatment, which comprises the sand filter, a plurality of rows of sand filter devices are arranged in the sand filter, an overflow weir is arranged between two adjacent sand filter devices in each row, and autotrophic denitrification filler is filled in the sand filter devices; a water inlet pipe is arranged in the water inlet tank, and the end part of the water inlet pipe is communicated with the first sand filtering device in each column. The sewage treatment efficiency and quality are improved, the operation cost is also reduced, and a more economical, environment-friendly and sustainable solution is provided for urban sewage treatment plants.

The invention discloses a paper mill high-salt reclaimed water reuse treatment device, and belongs to the technical field of paper mill high-salt reclaimed water reuse treatment, the paper mill high-salt reclaimed water reuse treatment device comprises a reclaimed water collection pool, a manganese sand filter, a clean water pool, a self-cleaning filter, a UF system and a UF water production pool which are sequentially connected through pipelines, and an outlet of the UF water production pool is connected with a primary concentration RO device through a pipeline; the second-stage concentration RO device comprises a second-stage RO concentration membrane and a second-stage RO concentrated water tank; the second-stage RO concentrated water tank is sequentially connected with a hardness removal reaction tank, a hardness removal coagulation tank, a hardness removal flocculation tank, a softening clarification tank, a tubular ultrafiltration membrane, a tubular ultrafiltration water producing tank, a softener, a softened water tank, a third-stage security filter, a third-stage concentration DTRO device, a concentrated brine collecting tank, an MVR evaporation device and a condensate water tank through pipelines. The system is used for recycling the high-salt reclaimed water of the paper mill, and has the advantages of low operation cost, good use effect, small occupied area, large water recycling amount, good water outlet effect and the like.

The invention discloses a device and a method for co-producing ammonium chloride by recycling rare earth wastewater. The device for co-producing ammonium chloride by recycling rare earth wastewater comprises an air floatation tank, an inclined plate sedimentation tank, filtering equipment, disc tube type reverse osmosis equipment, a high-density sedimentation tank, a first sand filter, an MVR (mechanical vapor recompression) evaporator, a triple-effect evaporator and reverse osmosis equipment. The method for recycling the rare earth wastewater and co-producing the ammonium chloride is carried out by adopting the device. According to the method, two ammonium chloride products can be produced at low cost and low energy consumption, and cyclic utilization of the rare earth wastewater is realized.

The invention discloses an efficient water treatment system and method based on ozone micro-bubble coagulation air floatation. The system comprises a coagulation reaction unit, an ozone air floatation unit, a separation tank, a micro-bubble generator, an ozone generator, a clean water tank and a modified sand filter tank, wherein the coagulation reaction unit is connected with the ozone air floatation unit, the ozone air floatation unit is connected with the separation tank, the separation tank is connected with the clean water tank, and the clean water tank is connected with the modified sand filter; and the ozone generator is communicated with the ozone floatation unit through the microbubble generator. According to the invention, 'ozone microbubble-coagulation-air floatation 'is organically coupled, and ozone oxidation, coagulation and air floatation processes are simultaneously realized in one treatment unit, so that ozone microbubbles, a coagulant and organic matters fully react to form ozone airborne floc to complete transfer and separation of pollutants; suspended matters and dissolved organic matters are efficiently removed at the same time, and the ozone utilization efficiency is improved by accurately calculating the ozone adding amount.

The invention relates to the technical field of automatic control, in particular to a control method for a chemical production copper-containing wastewater treatment system control model. The method comprises the following steps: collecting copper-containing wastewater data of a sedimentation tank by using a copper-containing wastewater treatment system; performing preliminary purification simulation based on the copper-containing wastewater data of the sedimentation tank, and removing suspended solids in the purification simulation process by using a sand filter to generate preliminary purification copper-containing wastewater data; removing copper ions in the preliminarily purified copper-containing wastewater data, including chemical precipitation removal, ion exchange removal and membrane separation removal, so as to obtain wastewater data; performing copper ion-containing abnormity judgment on the wastewater data based on a preset wastewater recovery standard to obtain copper ion-containing abnormity wastewater data; detecting the copper ion concentration based on the copper ion-containing abnormal wastewater data; and analyzing a stirring motor fault based on the copper ion concentration to obtain a stirring motor abnormal fault code. The treatment efficiency and energy management of the wastewater recovery system are optimized based on an automatic control technology.

The utility model discloses an efficient precipitation and filtration integrated device for pickling and phosphating wastewater treatment, which belongs to the technical field of sewage physicochemical treatment and is sequentially provided with an inclined tube precipitation tank, a quartz sand filter tank and an activated carbon filter tank. A secondary sedimentation tank for secondary sedimentation is arranged between the inclined tube sedimentation tank and the quartz sand filter tank, the inclined tube sedimentation tank comprises a dosing area and a sedimentation area, a water inlet of the inclined tube sedimentation tank is connected with a pipeline directly communicated with the bottom of the dosing area, and the upper end of the dosing area is communicated with the sedimentation area; a water outlet of the inclined tube sedimentation tank is communicated with a water inlet pipe of the secondary sedimentation tank, and a splitter plate for splitting sewage to prevent the sewage from flushing up sludge is arranged below a water outlet of the water inlet pipe of the secondary sedimentation tank; the inclined tube sedimentation tank has the beneficial effects that the inclined tube sedimentation tank which can be used for adding chemicals, mixing and precipitating at the same time is provided; the inclined tube sedimentation tank is matched with the secondary sedimentation tank, so that the technological process is simplified, the operation cost is reduced, the production period is shortened, and the production efficiency is improved.

The invention discloses an underground pressure opening sand setting type perforation sand prevention pipe column which comprises a non-channel coupling, a sand setting pipe is fixedly connected to one end of the non-channel coupling, an embossing guide pipe is fixedly connected to the other end of the non-channel coupling, a perforating gun is connected to the other end of the embossing guide pipe, and an exploder is fixedly connected to the interior of the joint of the embossing guide pipe and the perforating gun. The other end of the sand settling pipe is connected with a sand filtering pipe, and the other end of the sand filtering pipe is connected with an oil pipe; according to the underground pressure opening sand setting type perforation sand prevention pipe column, the pressure opening sand setting type perforation sand prevention pipe column is installed underground, underground mechanical sand prevention is achieved while well completion is conducted through the underground perforation pipe column, formation sand can be prevented from entering a ground production system, and the production efficiency is improved. Moreover, the sand prevention pipe column can be prevented from being put down after the perforation pipe column is lifted up after the perforation of the shallow gas well is completed, the well control risk is effectively avoided, the sand setting function in the pipe is achieved, the sand filter pipe airflow channel can be prevented from being buried by stratum sand, and the sand prevention device can be popularized and applied to underground mechanical sand prevention process technologies of various oil fields.

The utility model discloses a sand silo for pets and a pet toilet which are safe to use. According to the technical scheme, the sand bin for the pets is arranged in a pet toilet for the pets to move or excrete, the sand bin comprises a cavity for containing the pets, an inlet and outlet and a sand filtering net, the sand bin further comprises an upper shell, a lower shell and an excretion channel, the excretion channel is provided with an excretion opening communicated with the cavity and a discharging opening communicated with the outside, and the sand filtering net is arranged in the cavity. The excretion channel is suitable for the excretion to pass through; the upper shell and the lower shell are combined together to form a sand silo main body, the sand filter screen is connected with the upper shell and divides a sand storage space in the cavity, and the discharge port, the discharge port and the discharge channel are arranged on the upper shell; in the rotating direction of pouring out the excrement, the excrement firstly passes through the sand filter screen and then reaches the discharge port, and the discharge port and the discharge port are staggered in the orthographic projection direction, so that the discharge channel has a preset gradient or radian.

The utility model relates to the technical field of electric smelting brick waste sand treatment, and discloses a sand casting waste sand filtering and recycling device which comprises a crushing box, a motor is installed on the outer side of the crushing box, two crushing rollers are rotationally connected into the crushing box, one end of each crushing roller is fixedly connected with a cylindrical gear, and the other end of each crushing roller is fixedly connected with a motor. And the other end of one crushing roller is fixedly connected with a first belt wheel, the bottom of the crushing box is fixedly connected with a recycling box, and the interior of the recycling box is rotationally connected with a rotating rod. According to the waste sand crushing device, the motor is started to drive the crushing rollers to rotate, under the meshing action of the two cylindrical gears, the two crushing rollers can rotate at the same time, then waste sand is put into the crushing box from the top of the crushing box to be crushed, bonded large-particle waste sand can be crushed and then recycled, resource waste is avoided, and meanwhile under the rotation of the cam, the waste sand can be recycled. And the screening net can screen the waste sand, so that the crushing and screening integrated effect is achieved, and the working efficiency is higher.

The utility model provides a babylonia sand-free recirculating aquaculture system which comprises a self-pollution-discharge sand-free aquaculture pond and a low-level water treatment system, aquaculture tail water of the self-pollution-discharge sand-free aquaculture pond automatically flows into the low-level water treatment system to be subjected to particle three-level purification, and then the purified tail water is pumped into the self-pollution-discharge sand-free aquaculture pond through a water pump; babylonia breeding nests for allowing Babylonia to inhabit are arranged in the self-pollution-discharge sand-free breeding ponds, and automatic pollution discharge devices are installed at the bottoms of the self-pollution-discharge sand-free breeding ponds. The low-level water treatment system comprises a particulate matter three-stage removal device and a pipeline type ultraviolet sterilization device which are connected in sequence, and the particulate matter three-stage removal device is composed of a vertical flow sedimentation tank, a foam separation tank and a sand filter tank which are connected in sequence. The utility model effectively solves the problems that the traditional sand flowing water culture is high in water consumption, more in sand matrix dirt accumulation, easy in disease outbreak, incapable of carrying out industrial culture and the like, and has the advantages of high water-saving efficiency, good dirt collecting and discharging effects, controllable culture environment, few diseases, high culture efficiency and the like.

The invention provides an oil refining sewage treatment system and method, and belongs to the field of sewage treatment. The system comprises an oil removal pretreatment unit, a biochemical treatment unit and a deep treatment unit which are sequentially connected according to the water flow running direction, the oil removal pretreatment unit comprises an adjusting buffer tank, a cyclone flotation separation tank and an MPE separator which are connected in sequence; the biochemical treatment unit comprises an anoxic fluidized bed reactor, an aerobic fluidized bed reactor and a settling tank which are connected in sequence; the advanced treatment unit comprises a high-position coagulation reaction tank, a high-efficiency quicksand filter and a catalytic ozonation reactor which are connected in sequence. According to the invention, the oil refining sewage is treated in a device and closed manner, the occupied area is saved, and the on-site peculiar smell is reduced; the short-process and low-cost treatment of the oil refining sewage is realized.

The invention discloses a layered sand prevention and layered water injection real-time measurement and control pipe column and a measurement and control device and a construction method thereof. The layered sand prevention and layered water injection real-time measurement and control pipe column comprises a layered sand prevention pipe column and a cable real-time measurement and control separate injection pipe column. The cable real-time measurement and control separate injection tubular column is provided with underground equipment, and the underground equipment is arranged in the layered sand prevention tubular column. The underground equipment comprises a well completion oil pipe, small-diameter bridge type intelligent injection allocator and annular packers, at least two groups of small-diameter bridge type intelligent injection allocator and annular packers are arranged on the well completion oil pipe, and the annular packers in each group are arranged above the small-diameter bridge type intelligent injection allocator; and a water nozzle regulation and control assembly is arranged in the small-diameter bridge type intelligent injection allocation device and is used for regulating and controlling the water injection rate. According to the small-diameter bridge type intelligent injection allocation device, automatic testing and adjusting of all layers can be achieved, and extra instruments do not need to be put into the injection allocation device; the structure size can be normally put into the sand filter pipe, and the outer diameter of a common water distributor cannot be put into the sand filter pipe.

The utility model belongs to the technical field of port mechanical equipment, and particularly relates to full-automatic vehicle washing equipment which comprises a cleaning chamber and a vehicle washing machine installed in the cleaning chamber, a drainage ditch is arranged on the ground of the cleaning chamber and is connected with sewage treatment circulating equipment through a pipeline, and the sewage treatment circulating equipment is connected with the vehicle washing machine. The sewage circulating equipment is arranged in a sewage chamber, the sewage chamber is located on one side of the cleaning chamber, the sewage circulating equipment comprises a filter tank, an aeration tank and a reclaimed water tank which are sequentially connected, a bag filter and a quartz sand filter are arranged in the filter tank, and the reclaimed water tank is connected with the inlet end of the car washer through a water pump. According to the device, the flushing water is filtered by the sewage circulating equipment and can be recycled, so that the water source and the cost are saved.

The utility model discloses a sand mud content detection device for building mortar, which comprises a main body assembly, a base, a support plate, a driving motor, a stirring rod, a stirring barrel and support legs, the support plate is fixed at the top of the base, the driving motor is fixed on the support plate, the stirring rod is fixed at one end of an output shaft of the driving motor, and the stirring barrel is fixed on the support plate. The stirring barrel is arranged on one side of the supporting plate, and the supporting legs are fixed to the bottom of the base. The sand filter has the advantages that the filter part is used for filtering mixed liquid so that sand in the liquid can be filtered out of the liquid, the fixing part is used for fixing the filter part, the collecting part is used for collecting the liquid so that the silt content can be detected conveniently, the adjusting part is arranged, and the adjusting part is used for adjusting the adjusting part so that the silt content can be detected conveniently. The height of the collecting part is adjusted, so that the height of the filtering part is adjusted, and the height of the stirring barrel is adjusted.

The utility model discloses a sewage treatment sand removal device, which relates to the technical field of sewage treatment equipment, a box unit, a frame unit, and a sand filter unit, and also includes a clamping unit and a lifting unit; the clamping unit includes a fixed frame fixedly connected to the inner wall surface relative to the sand filter unit, and an active clamping column movably arranged inside the fixed frame for clamping and fixing the sand filter unit, and the lifting unit includes an active slider movably arranged on the inner wall surface relative to the frame unit, and a fixed plug plate fixedly connected to the bottom of the active slider for connecting the sand filter unit. The utility model is a sewage treatment sand removal device, through the provision of a lifting unit and a clamping unit, the structure can quickly process sand and gravel, saving manpower and time, and the operation is convenient and quick, the sand and gravel are cleanly and thoroughly processed, and the sand removal operation of the sewage is performed by lifting, without excessive manual operation, and greatly improving the efficiency and quality of the sewage sand removal.

The invention discloses a sludge treatment process for a sewage treatment plant. The invention belongs to the technical field of civil engineering sludge treatment, and realizes double breakthrough of environmental benefits and economic benefits through multi-stage cooperation and resource closed-loop design. The organic matter decomposition efficiency is remarkably improved through the synergistic effect of the biochar-loaded nano material, electron transfer in the anaerobic digestion process is accelerated through the unique conductive network structure of the biochar-loaded nano material, the methane generation rate breaks through the bottleneck of a traditional technology, and biochar serves as a core medium to directly participate in building of a building body; the porous characteristic and the adsorption performance of the filter material are integrated into a filter interlayer and an ecological slope protection of a hydraulic structure to replace a traditional sand filter material and a concrete additive, so that the construction process is simplified, and the structural functionality is enhanced. Process equipment and a building space adopt a collaborative design principle, and a guide wall of an anaerobic reactor and a refractory lining of a pyrolyzing furnace are integrally poured in combination with the characteristics of a charcoal-based material, so that the matching precision of an equipment foundation and a main body structure is greatly improved.

The present application discloses an ultrapure water improvement device, which relates to the technical field of ultrapure water improvement, and comprises a main body, a pretreatment structure is arranged on the top outer surface of the main body, the interior of the main body comprises three groups of filter element main bodies, the pretreatment structure comprises a buffer layer, a quartz sand filter layer and an activated carbon filter layer, and the buffer layer is arranged at the bottom of the pretreatment structure, an activated carbon filter layer is arranged on the top of the buffer layer, a quartz sand filter layer is arranged on the top of the activated carbon filter layer, a filter element cover is arranged on the top of the filter element main body, a water inlet pipe is arranged on the bottom outer surface of the pretreatment structure and the top outer surfaces of the three groups of filter element covers, and the tops of the three groups of filter element covers are respectively provided with a first solenoid valve, a second solenoid valve and a third solenoid valve, and the cooperation of the above structures can effectively filter and purify the ultrapure water in the processing process, so as to obtain high-quality ultrapure water.

The application discloses a kind of intelligent switching water sample pretreatment system and method, system includes: combined sand filter sample barrel, for collecting water sample to be pretreated, initial water sample turbidity value acquisition is carried out, while water sample preliminary pre-filtering treatment is carried out;Positioning floating sampling device, for fixing to take supernatant after water sample settlement;Microfiltration module, for the microfiltration of ultrahigh turbidity water sample;Sample water transfer pump, for transmitting supernatant in combined sand filter sample barrel to microfiltration module;Sample collection barrel, for collecting and detecting water sample quantity after processing, for instrument or laboratory personnel to sample analysis;Valve assembly, by valve opening and closing, water sample is switched different pretreatment mode;Cleaning assembly, including rotary high-pressure spray head and self-heating ultrasonic cleaning device, for cleaning system after pretreatment internal residual adherend.

The utility model discloses a composite filtering water treatment system for wet spunlace, which comprises an air flotation reaction system, a middle water tank, a sand filtering tank filtering system, a micro-nano filtering system and a clean water barrel for production, the air flotation reaction system, the middle water tank, the sand filter tank filtering system, the micro-nano filtering system and the clean water barrel for production are sequentially connected through pipelines; the air flotation reaction system is connected with a production water recovery pipeline, and the middle water tank is connected with a raw water pipeline. According to the composite filtered water treatment system for wet spunlace, the wastewater treatment efficiency is improved, zero discharge of wastewater is achieved, the environmental influence is reduced, water resources are saved, and the production cost is reduced. And meanwhile, the quality of non-woven fabric products is improved.

The utility model relates to the technical field of thickened oil recovery, in particular to a sand prevention injection and production valve which comprises a central pipe, a steam injection hole and an oil inlet hole are formed in the pipe wall of the central pipe, a sand filtering assembly is sleeved outside the central pipe, the central pipe is in sealed butt joint with the upper end and the lower end of the sand filtering assembly, and an annular space is formed between the central pipe and the sand filtering assembly. A one-way oil inlet valve communicated with the oil inlet hole is arranged in the annular space, the center pipe is further connected with a blocking structure used for blocking the steam injection hole, and the blocking structure can slide in the axial direction of the center pipe to expose the steam injection hole under well outside hydraulic operation. When the sand prevention injection and production valve is assembled into an injection and production pipe column for layered injection and production operation, steam injection, oil production and sand filtering can be achieved at the same time, additional oil inlet or sand prevention devices do not need to be arranged on the injection and production pipe column, and therefore the assembled injection and production pipe column is short in axial length, simple in structure and capable of being suitable for injection and production operation of oil layers with different layered thicknesses.