591results about How to "Avoid secondary pollution" patented technology

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The invention provides a dosing control method, system and equipment for a sewage treatment process and a medium, and the method comprises the following steps: obtaining multi-source heterogeneous data, and processing the multi-source heterogeneous data to construct a high-dimensional state vector; inputting the high-dimensional state vector into a drug demand dynamic prediction model to obtain a predicted concentration sequence; obtaining a target control instruction according to the current high-dimensional state vector and the predicted concentration sequence; the target control instruction is issued to a controller of the target dosing pump, and dosing control is carried out through the controller; the method solves the industrial problems of response lag, excessive or insufficient addition, incapability of coping with sudden change of water quality, high operation cost and the like existing in the traditional artificial experience control or simple PID (Proportion Integration Differentiation) control. According to the method, under the rigid constraint of absolutely ensuring that the effluent quality is stable and reaches the standard, the medicament consumption can be reduced to the greatest extent, the operation cost is reduced, the secondary pollution is avoided, and the automation and intelligence level of the operation of the whole sewage treatment system is improved.

The invention belongs to the field of wastewater treatment and industrial automatic control, and particularly relates to an intelligent dosing control method based on water quality online monitoring. The method comprises the following steps: capturing a water body spectrum fingerprint spectrum by using a full-spectrum scanning module to obtain a characteristic signal sequence; a chemical informatics molecular algorithm is introduced for preprocessing and feature enhancement, and molecular fingerprint information is recognized; a convolutional neural network model is constructed to decouple chemical oxygen demand, ammonia nitrogen, total phosphorus and water toxicity indexes from the spectral signals, and multi-parameter parallel inversion is achieved; and based on the inversion index and the spectral dynamic trend, the dosage is calculated through an intelligent decision-making algorithm, and accurate dosing of the medicament is driven. According to the invention, through fusion of full spectrum scanning and deep learning, high-precision anti-interference water quality perception is realized, potential risks can be identified and preventive intervention can be carried out, and the intelligent level and economical efficiency of dosing control are improved.

The invention discloses a pig farm sewage treatment system and method, and belongs to the technical field of farm sewage treatment, the pig farm sewage treatment system sequentially comprises a water collecting tank, a dosing mixing tank, a solid-liquid separator, an adjusting tank, a HiRAD anaerobic device, a reaction sedimentation tank, a water quality adjusting tank, an SBR biochemical tank, a C-MBR biochemical tank, a disinfection tank and a reuse water tank; by means of the system and the method, sewage discharged by the pig farm through the liquid manure technology can be effectively purified, organic carbon in the sewage can be converted into methane to the maximum extent, the methane becomes a high-quality biomass resource, waste is turned into wealth, emission of toxic gas is avoided, it is guaranteed that the pig farm is clean and sanitary, and the economic benefits of the pig farm are improved. Infection and spreading of diseases are avoided; meanwhile, a large number of nutrient sources, such as nitrogen and phosphorus, in the sewage are converted into organic fertilizer; the purified wastewater is deeply cleaned, so that the recycling standard is met, and the cyclic utilization of resources is realized.

The utility model relates to the technical field of 3D scanning, in particular to a 3D foot scanner which comprises a foot measuring table, a connecting rod is arranged on the rear end side of a foot measuring table body, a display screen is arranged at the top end of the connecting rod and used for controlling scanning starting and foot scanning parameter displaying, and scanning rods are arranged at the four corners of the top of the foot measuring table body. The scanning rod is used for foot treading scanning and data collection; the foot measuring table body is provided with a cleaning mechanism below the scanning rod, and the cleaning mechanism is used for removing foreign matters and dirt on the sole; the influence of foreign matters on the whole scanning is reduced, and the scanning data precision and the user health experience are remarkably improved.

This invention belongs to the technical field of industrial flue gas purification and solid waste resource utilization, specifically involving hydrogen fluoride adsorbents, their preparation methods and applications, and the application of waste adsorbents as fluoride electrode materials. The invention involves sequentially subjecting decayed oak wood to anaerobic fermentation and vacuum micro-aerobic pyrolysis to obtain a porous biochar carrier; loading a metal precursor onto the porous biochar carrier using an impregnation method to obtain a semi-finished product; and calcining the semi-finished product in a protective gas atmosphere to obtain the hydrogen fluoride adsorbent. The hydrogen fluoride adsorbent provided by this invention exhibits a high adsorption rate for HF, and the saturated waste adsorbent can be reused as a fluoride electrode material, demonstrating excellent cycle stability and rate performance. This invention provides a novel pathway for the functional transformation of biomass waste and the preparation of high-performance energy storage materials, while simultaneously reducing the cost of HF adsorbents, and has broad practical application value.

The application belongs to the technical field of comprehensive utilization of waste lithium-ion power battery, and discloses a deep eutectic lithium supplement and a method for repairing and regenerating positive electrode material of waste lithium-ion battery, wherein the deep eutectic lithium supplement is prepared by taking a solid-state reducing organic acid as a hydrogen bond donor and a solid-state lithium source as a hydrogen bond acceptor, mixing the hydrogen bond donor and the hydrogen bond acceptor, and reacting to obtain a deep eutectic melting state system; and the deep eutectic lithium supplement can be used for repairing and regenerating the positive electrode material of the waste lithium-ion battery. The application can prepare a liquid-state deep eutectic lithium supplement by using a solid-state reducing acid and a solid-state lithium source, is green and friendly, can realize self-limiting lithium supplement without strict control of the lithium supplement amount, has low energy consumption in the lithium supplement process, can greatly reduce the cost, and can be used for repairing and regenerating the positive electrode material of the waste lithium-ion battery.

This invention discloses a method for ultrapurifying electronic-grade hydrochloric acid using gas membrane filtration and multi-stage distillation. The method includes: preheating industrial-grade hydrochloric acid feedstock and feeding it into a desorption column; desorption at a temperature above the azeotropic point of hydrogen chloride and water to obtain crude hydrogen chloride gas; cooling the obtained crude hydrogen chloride gas to above its dew point and then feeding it into a gas membrane separation unit for filtration using a hydrophobic porous or dense membrane to remove entrained droplets, particulate matter, and non-volatile metal impurities, obtaining purified hydrogen chloride gas; pressurizing and liquefying the obtained purified hydrogen chloride gas and then feeding it into a multi-stage distillation column system for continuous distillation. The multi-stage distillation column system includes at least two distillation columns connected in series, further removing trace impurities with boiling points similar to hydrogen chloride through gas-liquid mass transfer to obtain ultrapure hydrogen chloride liquid; vaporizing the obtained ultrapure hydrogen chloride liquid and isothermally absorbing it with ultrapure water in an absorption column to obtain electronic-grade hydrochloric acid product. This invention significantly reduces the impurity load of the distillation system.

The utility model relates to a kind of roll bending machine plate material feeding scratch-proof surface treatment device, the utility model effectively solves that plate bottom is easily scratched, the granular matter on the surface of plate is easily formed dent when rolling, plate cannot be accurately aligned with roll bending machine entrance, is prone to the problem of indentation.The roll bending machine plate material feeding scratch-proof surface treatment device can simultaneously carry out physical cleaning to the upper and lower surfaces of plate by the upper and lower symmetrical active cleaning mechanism, effectively remove the metal scraps and dust and other impurities adsorbed on the surface, simultaneously cooperate with dust extraction mechanism can suction impurities cleaned in real time, significantly reduce the scratch or indentation risk caused by impurities pressed into by plate;Second electric push rod can coarsely adjust the height of flexible support module, flexible support module can fine tune itself, ensure that plate is smoothly fed, and flexible support module can disperse concentrated pressure into uniform surface support, prevent indentation caused by uneven support, more conducive to using when roll bending processing is carried out to plate.

The utility model relates to the field of membrane raw material pretreatment, in particular to a raw material preprocessing device for separating membrane preparation, which comprises a barrel, a sliding groove is arranged on the outer wall of the top of the barrel, the bottom of the barrel is respectively connected with a drain pipe and an adding pipe, and an auxiliary component is arranged on the outer wall of the top of the barrel and positioned at the sliding groove. The outer wall of the top of the auxiliary assembly is connected with a drying assembly. The auxiliary assembly comprises two groups of electric push rods, mounting blocks mounted on the outer walls of the top ends of the electric push rods, fixing frames mounted on the outer walls of the sides, close to each other, of the mounting blocks, and a filter hopper arranged at the center of the fixing frames; the drying assembly comprises a top plate, a mounting groove formed in the center of the outer wall of the top of the top plate and a fixing hole formed in the center of the top plate. According to the utility model, the valve of the drain pipe is opened, and the fan continuously inputs to accelerate the airflow speed, so as to take away the moisture in the material, thereby facilitating the two-in-one of drying, cleaning and drying, avoiding the secondary pollution of the material, and ensuring the quality and efficiency of the material.

The application relates to a method for preparing RM / Ni(OH)2 nanometer material based on red mud and application, and aims to utilize solid waste red mud (RM), slowly hydrolyze Na2O and CaO in the RM, take metal oxides such as Fe2O3, Al2O3 and TiO2 as supporting materials, in-situ grow Ni(OH)2 nanometer sheets on the RM surface through a one-step hydrothermal method, and prepare RM / Ni(OH)2 nanometer adsorption material. The adsorbent RM / Ni(OH)2 has the characteristics of high adsorption capacity, low cost and simple manufacturing process, can effectively adsorb dye wastewater, realizes resource utilization of the RM, provides a new idea for water dye pollution treatment and RM resource utilization, combines the advantages of high specific surface area and rich surface functional groups of the red mud and Ni(OH)2, and makes up for the shortage of limited adsorption capacity of the two. The raw material source is rich, the RM is not subjected to traditional acid-base treatment in the use process, secondary pollution caused by acid-base waste liquid to the environment is reduced, and the true "waste treatment with waste" is realized.

This utility model relates to the field of photovoltaic power station cleaning technology, and in particular to a cleaning and maintenance vehicle for photovoltaic power station construction. It solves the problem that existing technologies generate a large amount of waste and dust during photovoltaic power station construction, as well as water stains, all of which require timely cleaning. However, manual cleaning is currently time-consuming and labor-intensive. The photovoltaic power station construction cleaning and maintenance vehicle includes a mobile frame, characterized in that a support plate is fixedly installed on the top of the mobile frame. This utility model, through the combined design of lateral and longitudinal cleaning components, utilizes the meshing transmission of a first bevel gear and a second bevel gear to achieve synchronous linkage between the lateral and longitudinal cleaning brushes. This allows for cross-cleaning of waste, dust, and water stains in the photovoltaic power station construction area from different directions, significantly improving cleaning coverage and cleaning effect, and solving the problem of incomplete cleaning in traditional single-direction methods.

The utility model provides a kind of new trend device with air purification function, including air inlet pipe and air outlet pipe, the air inlet pipe and air outlet pipe one end are connected by air guide pipe, air inlet pipe air inlet one end is fixedly connected with primary filter plate, air inlet pipe and air outlet pipe inside are respectively rotatably connected with multiple wind baffle, air guide baffle is rotatably connected in the air guide pipe inside, two sealing bosses are fixedly connected in the air guide pipe inside, air guide baffle both sides are attached to sealing boss, synchronous wheel group is fixedly connected above one side wind baffle and air guide baffle installed in the air inlet pipe or air outlet pipe;Air flow switching is realized by the linkage design of air guide baffle and wind baffle, when needing to clean primary filter plate, overturn motor drives air guide baffle rotation degree, simultaneously by synchronous wheel group and synchronous belt one drive wind baffle synchronous rotation, make air flow reverse through primary filter plate and realize automatic backflush cleaning, solve the problem that traditional filter screen is easy to block.

This utility model discloses a hand-cranked activated carbon cleaning device, including a cleaning hood mounted between fixed supports via a horizontal shaft. Both ends of the cleaning hood are sealed with support panels. A mesh is evenly distributed on the outer cover between the support panels, and a feed inlet is also provided on the outer cover. Both ends of the horizontal shaft extend out from the support panels, with the extended portions resting on the fixed supports. One end is connected to a hand crank handle. The horizontal shaft is also fixedly connected to the support panels. A water pipe support is provided beside the fixed supports, with the water pipe horizontally mounted on the support and positioned above the cleaning hood. Multiple nozzles are arranged on the water pipe. This utility model device has a simple structure and low cost, suitable for activated carbon cleaning needs in environments without electricity or in small-scale scenarios, as well as for cleaning small-scale (1-20 kg) activated carbon in laboratories.

The utility model relates to water tank technical field discloses a combined stainless steel water tank, including the combined water tank that is provided with the water inlet end and the water outlet end, the water outlet end of combined water tank is installed with the water outlet pipe, the one end of water outlet pipe is away from combined water tank and is welded with the cleaning storehouse, the front and back of cleaning storehouse all are provided with the communicating hole, the one end surface of cleaning storehouse is away from water outlet pipe and is welded with the filter connecting pipe in the position of facing the communicating hole, the one end of filter connecting pipe is away from water outlet pipe and is detachably installed with the filter assembly. The combined stainless steel water tank, through the lifting of silica gel brush hair can clean the stainless steel filter screen filter end, need not to disassemble the filter device to clean the stainless steel filter screen conveniently and quickly, greatly simplifies the maintenance process, reduces the labor intensity and operation risk, the impurity cleaned out is directly discharged from the blowoff pipe through the water flow, will not backflow to the inside of combined water tank, prevents the secondary pollution of the water in the inside of combined water tank when cleaning the stainless steel filter screen.

This utility model discloses a die-cutting device for conductive shielding SCF (Superficial Carbon Fiber) in mobile phones, relating to the technical field of die-cutting machine equipment. It includes a base, with drive wheel assemblies fixedly connected to both ends of the top of the base. A U-shaped support and a U-shaped worktable are fixedly connected to the top of the base. A first hydraulic rod is fixedly connected to the top of the U-shaped support. A high-frequency punching drive device is slidably connected between the inner walls of both ends of the U-shaped support. One end of the first hydraulic rod passes through the top of the U-shaped support and is fixedly connected to the top of the high-frequency punching drive device. The base provided by this utility model avoids material adhesion to the cutter head, which affects processing efficiency, while also preventing incomplete cutting due to uneven pressure. This solves the problems of material adhesion to the cutter head caused by electrostatic adsorption and uneven pressure, and incomplete cutting, that occur in traditional mobile phone SCF conductive shielding die-cutting devices.

This utility model belongs to the field of steel component technology, and in particular to a rapid removal device for passivation liquid on the surface of steel components. It includes a workbench, with a mounting frame fixedly connected to one side of the workbench surface. A mounting plate is fixedly connected to one side of the mounting frame surface. A motor is mounted on one end of the mounting plate, and a rotating shaft is connected to the output end of the motor. A drive roller is connected to one end of the rotating shaft. A driven rotating shaft is connected to one side inside the mounting frame, and a driven rotating roller is connected to one end of the driven rotating shaft. Through the cooperation of a hot water tank, water pipes, a conveyor belt, and nozzles, the hot water tank heats the water, and the heated water is sprayed onto the surface of the steel component through the nozzles to flush away the passivation liquid. This method is more efficient than manual removal and shortens working time. During the removal of the passivation liquid, the waste liquid mixed with water enters the interior of a recycling tank through a guide port and a drain port, preventing the waste liquid from dripping directly onto the ground and causing secondary pollution.

The utility model discloses a recycling various waste batteries recycling equipment system, its characterized in that, including conveying device, disassembling device, shredding device, drying device, air guide device, sorting device and flotation device, conveying device includes conveyer, and the battery box and battery cover of battery are set up to split out battery cover mechanism for conveying machine, and the collection mouth of disassembling device is poured into after electrolyte collection in battery box material, and disassembling device includes disassembling machine, and the below of disassembling machine sets up brine pool, and brine pool sets up meshing conveying mechanism and conveys material to shredding device, and shredding device includes shredder, and the below outlet of shredder sets up fire lye pool, and fire lye pool iron class heavy metal class plastic class material is conveyed to sorting device through meshing conveying mechanism, and the black powder class material of deposition is sent to dehydration equipment dehydration through pipeline screw conveying mechanism, and then, using pipeline screw conveying mechanism, the material is sent into drying device. The utility model can make all resources of waste batteries, and process safety, reliable.

The utility model discloses an ozone and plasma compound cleaning machine, including casing, door body I, door body II, gas flowmeter, pressure gauge, ozone cleaning cavity, UV lamp assembly, cleaning platform subassembly, vacuum cavity, vacuum pump and air inlet subassembly. The casing is installed with door body I and door body II, is communicated with the ozone cleaning cavity and vacuum cavity that sets up respectively in the casing inside. The ozone cleaning cavity is provided with UV lamp assembly and cleaning platform subassembly. Vacuum cavity is provided with anode plate assembly. In the working condition, the article to be cleaned is placed on the bottom surface of the cleaning platform or vacuum cavity, and the article to be cleaned is cleaned through UV lamp or ion body. The utility model will be through the integration of ozone generation module and plasma generation module, adopt integrated cavity design, and the cleaning efficiency is high, effectively shortens technological process, avoids secondary pollution caused by intermediate transfer.

The utility model discloses and quick removal and cleaning device of andy body surface slime, including the shell body with cavity, the bottom fixed connection of shell body has the support piece, the front end of shell body is equipped with the sealable sealing door, the conical flow guide cavity of guiding fluid directional flow is equipped in the bottom of cavity, the inside of flow guide cavity is provided with the linear drive source of independent work, the bottom of cavity is equipped with the through type sewage discharge hole and is located the guide terminal of conical flow guide cavity, and the power output of linear drive source is equipped with the bearing platform, and the upper surface of bearing platform forms with the organism positioning recess of andy body shape contour adaptation, and the inside wall of cavity is provided with the pressurized fluid injection assembly, the utility model discloses through the pressurized fluid injection assembly generation multidirectional water flow overall coverage andy body surface, and the reciprocating motion of wave shape silica gel scraper in the slime stripping unit of servo motor drive, and the both cooperation reaches physical and fluid double cleaning, improves the slime removal efficiency, and shortens the manual cleaning time.

The hydraulic engineering desilting device comprises a ship body, a mounting frame is fixedly mounted on the upper surface of the rear side of the ship body, and connecting rods are connected to the two sides of the mounting frame. By using the height adjusting mechanism, the reciprocating mechanism, the stirring mechanism and the mud pumping mechanism, the desilting efficiency and quality can be remarkably improved. Through cooperative work of the height adjusting mechanism and the reciprocating mechanism, the sludge scraping mechanism can be flexibly adjusted according to the actual sludge depth and go deep into the bottom of a sludge layer to work, meanwhile, the stirring mechanism scatters the sludge through gear transmission, the dredging range is expanded, the sludge removing process is accelerated, and therefore the dredging period is greatly shortened, and the dredging efficiency is improved. And the engineering cost is reduced. Besides, the stirring mechanism is matched with the sludge pumping mechanism, so that comprehensive and deep cleaning of the sludge is ensured, the common problem of incomplete dredging in a traditional dredging method is avoided, and the water body and the ecological environment are effectively protected from being affected by secondary pollution of residual sludge.

The utility model relates to denitration equipment for solving the problem of high ammonia escape in flue gas of a waste incineration plant, and aims to solve the technical problems that the mixing uniformity of ammonia gas and flue gas is poorer, the ammonia gas and the flue gas are non-uniformly mixed, local escape is increased and secondary pollution is caused because the ammonia gas is directly introduced to be mixed with the flue gas at present. The mixing mechanism comprises a denitration pipe fixedly connected between the upper end and the lower end of an inner cavity of the denitration tower and denitration particles used for flue gas denitration, the denitration pipe is provided with an ammonia gas pipe, the ammonia gas pipe is distributed in an S shape, a plurality of gas outlet holes are formed in the inner side of the ammonia gas pipe at equal intervals, the middle of the top end of the ammonia gas pipe is communicated with a gas inlet pipe, and the gas inlet pipe is communicated with a gas outlet pipe. According to the utility model, ammonia gas in the denitration pipe is uniformly distributed in the denitration pipe at equal intervals, and NOx in flue gas is fully contacted and mixed with the ammonia gas, so that the mixing uniformity of the ammonia gas and the flue gas is improved, and secondary pollution caused by local ammonia gas escape and rise due to non-uniform mixing of the ammonia gas and the flue gas is avoided.

The utility model provides an acid steaming cleaning device, and relates to the technical field of containers. The bottom of the cylinder body is arranged at the top of the heating chassis; the separation disc is arranged in the cylinder body, a first cavity used for containing a container to be cleaned is formed between the separation disc and the top of the cylinder body, a second cavity used for containing an acid solution is formed between the separation disc and the bottom of the cylinder body, and a plurality of through holes are distributed in the separation disc; the support frame group is arranged at the top of the separation disc and is used for supporting a to-be-cleaned container; the cover body is arranged at the top opening position of the cylinder body; according to the acid steaming cleaning device, acid steam is used for cleaning, the container can be prevented from being secondarily polluted by heavy metal flowing into an acid solution, the acid consumption is reduced, the acid solution on the container can drop back into the second cavity when cleaning is finished, and when the container is taken out, the container can be prevented from carrying the acid solution, and large loss of the acid solution is avoided.

The invention belongs to the technical field of semiconductors, and discloses a cleaning device for a semiconductor process chamber, the process chamber and a cleaning method, the cleaning device comprises a gas inlet pipeline, one end of the gas inlet pipeline is connected with an external gas source, and the other end of the gas inlet pipeline is connected with a surrounding pipeline in the process chamber; the surrounding pipeline is arranged around an inner cavity of the process chamber in the process chamber; the high-pressure spray head groups are arranged on the surrounding pipeline at intervals, and each high-pressure spray head group comprises a plurality of high-pressure spray heads; and the exhaust pipeline is connected with the vacuumizing equipment and is used for pumping out the particle impurities blown by the high-pressure gas in the process chamber. The cleaning operation can be automatically executed, and compared with traditional manual operation, the cleaning operation is more convenient and faster.

The utility model discloses an integrated portable trachea cannula cleaning and disinfecting cup, which is characterized in that a foldable cup body is arranged, a filter sheet which can move up and down and is provided with filter holes is arranged in the foldable cup body, and a lifting rope is connected with the filter sheet, so that the filter sheet can be conveyed to the bottom of the foldable cup body; when the trachea titanium tube is lifted by the lifting rope after being disinfected, the trachea titanium tube can be lifted and cleaned at the same time, and a trachea cannula does not need to be clamped into a disposable sterile bowl to be cleaned by tweezers after being disinfected, so that the trachea titanium tube is not required to be cleaned by the tweezers after being disinfected. Secondary pollution caused by falling of the trachea cannula due to misoperation in the process that the trachea cannula is clamped to a disposable bowl through tweezers is avoided, a disposable sterile bowl does not need to be used, and the consumption cost of medical equipment is reduced. The disinfection and cleaning integrated structure is realized, and the disinfection and cleaning integrated device is light and portable, can be folded and is convenient to carry about.

The utility model belongs to injection pen technical field, concretely relates to a needle protection mechanism and injection pen, include: the needle cover is covered in the medicine bottle subassembly, and the lateral wall of needle cover is provided with the clamping piece, the limiting ring is covered in the needle cover, and the lateral wall of limiting ring is provided with the clamping interface, and the outer wall of limiting ring is provided with the limiting buckle, wherein, when the needle cover slides upward, the injection needle of medicine bottle subassembly exposes, and the clamping piece slides into the clamping interface, when the needle cover resets downward, the injection needle of medicine bottle subassembly hides, and the needle cover drives the limiting ring to slide down to the limiting buckle and slides out the pen body, and the limiting buckle stops at the end face of pen body, through setting the clamping piece in the lateral wall of needle cover, when the needle cover retracts, the clamping piece slides into the clamping interface to buckle the clamping piece, when the needle cover resets, drive the limiting ring to slide down to make the limiting buckle buckle the end face of pen body, to avoid the needle cover to retract again, avoid the occurrence of secondary pollution.

This invention discloses a surface cleaning system, including a floor brush with cleaning components and a base with a cleaning tank. The floor brush is placed on the base so that the cleaning components are cleaned in the cleaning tank. The floor brush is also provided with a roller brush cavity and a scraping component. The outer surface of the cleaning components is surrounded by bristles. The cleaning components rotate in the roller brush cavity to scrape the scraping component to remove dirt from the bristles. The side wall of the roller brush cavity is provided with a first surface opposite to the cleaning roller. The self-cleaning method of the surface cleaning system includes: a cleaning component cleaning step: providing cleaning liquid to the cleaning components and controlling the cleaning components to rotate in a first direction so that the bristles absorb water and lie flat under the action of the scraping component, forming a gap between the cleaning components and the first surface; a roller brush cavity cleaning step: including a sub-step B: controlling the cleaning components to rotate in a second direction, and the scraping component scrapes the bristles to make the bristles stand up and wipe the first surface, thereby realizing automatic cleaning of the roller brush cavity.

The invention relates to the field of microbiological examination laboratory equipment, and discloses a drying and disinfecting device and method for a specimen glass slide for microbiological examination. The device comprises a machine shell, a motor and a controller, the detachable rotating shaft is in transmission connection with the driving motor; the support frame is detachably arranged on the detachable rotating shaft and forms a plurality of mounting surfaces; the glass slide mounting plate is detachably mounted on the mounting surface, and a plurality of glass slide mounting stations are arranged on the glass slide mounting plate; the drying module comprises a drying lamp; the disinfection module comprises an ultraviolet disinfection lamp; and the control module is electrically connected with the driving motor, the drying module and the disinfection module and is used for executing a drying program and a disinfection program. The problems that in an existing glass slide processing method, the drying capacity and uniformity are difficult to consider at the same time, the drying process is uncontrollable, and low efficiency and safety risks are caused by separation of the drying process and the disinfection process are effectively solved.

The invention belongs to the technical field of nuclear facility decommissioning, and particularly discloses an underwater laser cleaning and cutting combined machining device and a using method, cleaning and cutting are achieved through refraction and reflection of cleaning laser by scanning an X / Y-axis galvanometer set and a dichroscope and transmission of cutting laser by the dichroscope, and coaxial focusing is achieved through a common field lens; a gas-liquid coaxial composite nozzle is arranged at the bottom, and center auxiliary airflow and annular high-pressure laminar flow water can be independently regulated and controlled; millisecond-level process switching is matched, and instant cutting is carried out after cleaning is completed at the same underwater station. Aiming at the problems of low efficiency, high safety risk, more secondary pollution, poor cutting quality and the like in the decontamination and disintegration process of the high-level metal part of the nuclear power station, the invention does not generate radioactive waste liquid, effectively avoids secondary pollution, remarkably improves the cutting quality, the operation safety and the system reliability, and is suitable for green and efficient retirement operation in a high-radioactivity environment.

This utility model relates to a fountain structure for ecological restoration of eutrophication in a landscape lake, including a water inlet tank. A filter screen is installed on the inner wall of the water inlet tank. Multiple water inlets are opened on the outer surface of the water inlet tank, and multiple water inlets are opened on the upper surface of the water inlet tank. A protective box is installed on the upper surface of the water inlet tank, and a first motor is installed on the inner bottom wall of the protective box. This utility model, through a dual composite water inlet structure of water inlets and water inlets, combined with the filter screen installed on the inner wall, can intercept large particles of debris such as aquatic plants and large-diameter organic debris, avoiding the problem of device clogging. The first motor drives the rotating rod and stirring rod to rotate at high speed, and the resulting vortex can disperse algae clusters and fine organic debris in the water inlet tank, preventing them from depositing at the bottom of the water inlet tank to form an anaerobic sediment layer. This design avoids secondary pollution and also prevents deposited debris from being carried into the subsequent biological treatment stage by the water flow, ensuring the stability of the microbial degradation environment.