75results about How to "Easy to settle" patented technology

The utility model discloses a novel thickener which comprises a pool body, a tailing pipe and a dosing pipe, the pool body comprises an outer cylinder section and an inverted circular truncated cone section which are sequentially arranged from top to bottom, an overflow groove is formed in the outer edge of the top of the outer cylinder section, and the novel thickener further comprises a rotational flow sedimentation assembly arranged in the outer cylinder section; the blocking cover is sleeved with the outer cylinder section, the material distributing disc and the stirring blade are sequentially and rotationally installed at the axis position of the blocking cover from top to bottom, the outer diameter of the stirring blade is smaller than that of the lower edge of the blocking cover, and the stirring blade extends out of the blocking cover. And the tailing pipe and the dosing pipe are inserted into the blocking cover above the distributing disc. According to the utility model, the phenomenon of'running and mixing 'caused by overflow of fine-particle tailings can be effectively avoided; the rotational flow precipitation assembly is arranged in the outer cylinder section, so that stirring blades do not extend into the concentration area of the tank body, and the rake pressing phenomenon is avoided; the rotational flow precipitation assembly is simple in structure and can be completed through universal parts, and the cost is greatly saved.

The utility model discloses a dosing rapid dissolving and mixing water bucket for a water plant, belongs to the technical field of water treatment equipment, and solves the problems of high cost and insufficient mixing of a bucket type container for water and medicine mixing in the prior art. A precipitation mechanism is arranged in the mixing water bucket, a top cover is connected to the top of the mixing water bucket and the top of the precipitation mechanism, a medicine inlet is formed in the top cover, a filter screen, a slag collecting screen and a flocculation stop block are installed in the mixing water bucket, and a flow guide cone is installed at the bottom in the mixing water bucket; drain outlets are respectively formed in the bottoms of the outer walls of the mixing water bucket and the precipitation mechanism, a tangent water inlet and a tangent backflow water inlet are respectively formed in the outer wall of the mixing water bucket, and an overflow port and a medicine outlet are further formed in the outer wall of the precipitation mechanism. The mixing device is used for mixing medicine powder and water in medicine adding equipment in a water production plant, and has the characteristics of uniform and sufficient mixing and energy conservation.

The invention relates to a quantitative evaluation method for a data asset management value. The method comprises the following steps: S1, calculating a business case data asset management income; s2, calculating normalized data asset management income based on the data item single call RTB income and call times; s3, calculating business case data asset management cost and normalized data asset management cost; and S4, calculating a data asset management value, a business case data asset management value and a normalized data asset management value. Compared with the prior art, the method has the advantages of quantizing the data value and the like.

The invention relates to the technical field of printing and dyeing wastewater treatment, and discloses a printing and dyeing wastewater treatment device with a multi-stage separation function, which comprises a sedimentation tank, an auxiliary separation assembly arranged at the top of the sedimentation tank and used for assisting in sedimentation of printing and dyeing wastewater, and an amplitude adjusting assembly arranged above the sedimentation tank and used for adjusting the sliding amplitude of the auxiliary separation assembly, an anti-blocking assembly used for guaranteeing smooth drainage is arranged in the sedimentation tank, through the arrangement of an auxiliary separation assembly and an amplitude adjusting assembly, continuous flapping action can be achieved, regular physical disturbance is generated in wastewater, pollutant particles can be better gathered and precipitated in the printing and dyeing wastewater, and through the continuous physical disturbance, the pollutant particles can be effectively separated from the sedimentation tank. According to the device, pollutants in the printing and dyeing wastewater can be settled in a short time, so that compared with a traditional settling pond, the settling efficiency is greatly improved, the retention time of the wastewater in the settling pond is shortened, and the treatment capacity of a whole printing and dyeing wastewater treatment system is improved.

The utility model discloses a waterproof water guide groove for a building roof for building integrated photovoltaics (BIPV). The photovoltaic panel groove comprises a groove body, the groove body is arranged at a gap between every two adjacent photovoltaic panels, and the middle part of the groove body extends upwards to form a convex part; the groove body is divided into two water collecting grooves by the protruding part, and a plurality of drainage grooves are distributed in the water collecting grooves. A filter screen is fixedly arranged at the bottom of the drainage groove; a water collecting chamber is fixedly arranged at the bottom of the tank body; the gradient on the two sides of the protruding part accelerates the drainage speed of water flow, and therefore the drainage efficiency is improved. Due to the fact that the protruding part is arranged, a relatively high area is formed in the middle of the groove body, water flow can flow towards the two sides more easily, and accumulated water is prevented from being formed in the middle. The potential damage of moisture to the building and the photovoltaic panel is reduced, and meanwhile, the drying and cleaning of the tank body are kept; and the direction and the speed of water flow are changed through the protruding parts, impurities and particles can be precipitated in the water collecting chamber more easily, and therefore cleaning work is more convenient and efficient.

The utility model discloses a sterilization device combining ultraviolet rays with copper dioxide. The sterilization device comprises a sterilization tank, a mixing box, a feeding box and a filtering box, a plurality of feeding pipes are communicated with the top of the mixing box, a first electromagnetic valve is communicated with the surface of the mixing box, a liquid pumping pipe is communicated with the surface of the first electromagnetic valve, a flow meter is mounted on the surface of the liquid pumping pipe, one end of the liquid pumping pipe is communicated with a first conveying pump, and the liquid outlet end of the first conveying pump is communicated with the upper part of the surface of the sterilization tank through a pipeline; an ultraviolet lamp is fixed to the top of the inner wall of the sterilization tank, the bottom of the sterilization tank is communicated with a residue discharging valve, the surface of the sterilization tank is communicated with a second electromagnetic valve, and the surface of the second electromagnetic valve is communicated with a second conveying pump through a pipeline. The sewage treatment device has the advantages that sewage can be sterilized more comprehensively in a mode of matching ultraviolet irradiation with a solvent after copper dioxide is mixed, and the problem that a traditional ultraviolet sterilization treatment device is poor in effect of killing microorganisms in the sewage is solved.

The utility model discloses a wastewater treatment device for anhydrous acetonitrile production, which comprises a mixing tank and a sedimentation tank which are communicated through a suction pump. A feeding hole is formed in one side of the top of the mixing tank, a flow guide plate is fixed on one side of the inner wall of the feeding hole, a wastewater input pipe and a medicament input pipe are arranged on the flow guide plate, and flow dividing bulges are also arranged on the inner wall of the flow guide plate; a bearing plate is arranged on the inner bottom wall of the sedimentation tank, positioning plates are fixed to the two sides of the bearing plate, and an electric heating rod is further arranged in an inner cavity of the bottom of the sedimentation tank. And the two treatment modes of mixing and precipitation are carried out separately and do not interfere with each other, so that the effect is better.

The invention belongs to the technical field of perilla oil extraction, and discloses a perilla oil extraction device which comprises a tank body, a support is fixedly installed on the tank body, a ball head is fixedly installed on the support, the ball head is installed in a ball seat in a matched mode, and an outer cylinder is connected to the ball seat through a connecting frame. The inner cylinder is supported by the ejector rod and the guide wheel, so that the filter screen can be always kept in an inclined state, oil can be always naturally collected to a residue-free area in the filtering process, residues at a high position are promoted to be precipitated at a shallow layer under the action of oil flow, the filtering efficiency and the utilization rate of the filter screen are greatly improved, and the service life of the filter screen is prolonged. And in the process of collecting the residues, secondary recovery of grease can be realized through the permeation holes in the sleeve, so that the content of grease in the residues is reduced, the problem of grease waste is reduced, and the extraction rate of perilla oil is improved.

The utility model provides an automatic pressure sensing brush car washer, and belongs to the technical field of car washing. Comprising a bottom plate, guide frames are installed on the two sides of the bottom plate, and a portal frame is in transmission connection with the tops of the guide frames; and a brushing mechanism. Through the design of the wastewater treatment mechanism, effective treatment of car washing wastewater is realized, impurities and pollutants in the wastewater can be filtered layer by layer through combined use of the bottom box, the water filter plate, the clamping plate, the filter plate, the waste material box and the activated carbon plate, and the wastewater treatment efficiency and quality are improved. By means of the design, the wastewater treatment process is simplified, the treatment cost is reduced, car washing wastewater treatment becomes easier, more convenient and more economical, the filter plate is obliquely arranged, and therefore impurities can be better precipitated and separated when wastewater flows through the filter plate. Meanwhile, the inclined filter plate can also facilitate collection of waste materials, and the situation that the waste materials are accumulated on the filter plate to affect the filtering effect is avoided.

The invention discloses a theme style sharing method and device and a server, and relates to the technical field of computers.The method comprises the steps that a first terminal adjusts configuration parameters of a local artificial intelligence model in response to personalized configuration operation on theme styles, and style configuration parameters are obtained; wherein the artificial intelligence model generates a target digital asset of a personalized theme style corresponding to the personalized configuration operation under the condition that the artificial intelligence model runs based on the style configuration parameters; performing structured processing on the style configuration parameters to generate a style configuration file; and sharing the style configuration file to a second terminal to enable the second terminal to restore the style configuration parameters based on the style configuration file, and generating a target digital asset based on a local artificial intelligence model and the style configuration parameters of the second terminal to reproduce the personalized theme style. According to the method and the device, the user can be supported to perform personalized creation on the theme style and perform efficient sharing on the creation result, and meanwhile, the shared theme style can be ensured to be accurately reproduced at the receiving end.

The utility model relates to a water sample centrifugal bottle which comprises a bottle body and a vertical frame arranged below the bottle body and used for supporting the bottle body to be vertical, a top cover is detachably connected above the bottle body, a conical cylinder is communicated below the bottle body, baffle plates which are connected with each other are arranged on the inner surface of the bottle body and the inner surface of the conical cylinder, and the lower ends of the baffle plates are positioned above the inside of a bottom cylinder. A clamping groove is formed in the outer surface of the conical cylinder, the lower portion of the conical cylinder is communicated with a bottom cylinder, a bottom cover embedded into the vertical frame is detachably connected to the lower portion of the bottom cylinder, a balancing weight is arranged in the vertical frame, a plurality of elastic pieces are connected to the upper portion of the vertical frame, and a clamping ridge connected with the clamping groove in a clamped mode is connected to the upper portion of each elastic piece. The centrifugal bottle can be vertically stood and settled through the vertical frame or centrifugally settled through the centrifugal machine, so that different settling separation modes can be adopted according to requirements, the time required by conventional standing and settling is shortened during standing, and secondary turbidity possibly caused by shaking when the centrifugal bottle is taken out after centrifugal settling is avoided during centrifugation.

The utility model discloses a settling pond for sewage treatment, relates to the technical field of settling ponds, and aims to solve the problem of poor settling effect caused by insufficient time of partial existing settling ponds. According to the technical scheme, the device is characterized by comprising a hollow tank body, the tank body is communicated with a bottom water inlet pipe and a top water outlet pipe, a silt collecting part and a filtering part are sequentially arranged in the tank body from bottom to top, the top of the silt collecting part is open, and the bottom of the filtering part is open and right faces the opening of the silt collecting part. Through the arrangement of the structure, the whole structure is ensured to have a good and stable precipitation effect.

The utility model discloses a precipitation separation device for a main hydrolysate of a plant fiber raw material. Comprising a shell, a rotary stirring paddle positioned in the shell, a rotating shaft for assembling and connecting the rotary stirring paddle, and a rotating driver positioned outside the shell and used for driving the rotating shaft to drive the rotary stirring paddle to rotate together, wherein at least one end of the rotating shaft penetrates out of the shell. The shell is provided with a main hydrolysate inlet, a precipitant inlet and a precipitant outlet, the shell comprises an upper shell and a lower shell which are hermetically matched, the lower shell comprises at least one of a first lower shell and a second lower shell which can be opened and closed, and the first lower shell and the second lower shell are hermetically matched when being closed. And a plurality of rotary stirring paddles are arranged in the axial direction of the rotating shaft at intervals. According to the precipitation separation device for the main hydrolysate of the plant fiber raw materials, the sugar-acid separation efficiency can be improved, and solid precipitates can be conveniently separated from the shell so as to achieve the purpose of automatic discharging.

The invention provides a constructed wetland treatment system and method and application, and belongs to the technical field of pollutant treatment. The constructed wetland treatment system comprises a constructed wetland pool, a supporting layer and a matrix functional layer are sequentially arranged in the constructed wetland pool from bottom to top, wetland plants are planted on the matrix functional layer, and the matrix functional layer is a mixture of Manchuino ore and quartz sand. According to the invention, the Manchuo mine is used as a matrix filler of an artificial wetland system, and through the electron supply, adsorption and coprecipitation effects of the Manchuo mine, the form of heavy metals is changed, the adsorption of micro-organic pollutants and the adsorption and precipitation of the heavy metals are promoted, and the removal of the heavy metals and part of the micro-organic pollutants is realized; meanwhile, microorganic micropollutants are degraded through a synergistic effect with microbial anabolism and mediated oxidation-reduction reaction thereof and plant assimilation absorption, so that a multifunctional pollutant removal system for the constructed wetland is constructed, and the utilization rate of the constructed wetland is effectively increased while effluent is ensured to meet the national standard.

The present invention is a process for recovering arsenic, cadmium, indium and other valuable metals from arsenic- and cadmium-containing ash. The arsenic- and cadmium-containing ash produced in the nonferrous metal metallurgy process is used as a raw material, and the indium, zinc, cadmium, arsenic and iron in the ash are all leached out by a hydrochloric acid solution leaching method, and then anion resin, hydrogen sulfide, calcium oxide, hydrogen peroxide and zinc sulfate are used to recover arsenic, cadmium, indium and other valuable metals respectively. The present invention does not add other inorganic salts to the system, and no industrial wastewater is generated in the whole process.

This utility model discloses a pH control mechanism for a vanadium precipitation stirring tank, relating to the field of vanadium precipitation technology. It includes: a stirring container with an alkali storage tank and an acid storage tank fixedly installed on its two outer walls; the alkali storage tank includes a mounting platform fixed to the side wall of the stirring container, with connectors on both outer walls of the mounting platform; a housing is installed on one side of the mounting platform via the connectors; a level gauge is installed on one side of the housing; a top cover is installed on the top of the housing; a liquid inlet pipe is inserted into the top cover, with its tip inserted into the interior of the stirring container; an electrically controlled pump is installed inside the housing; and a liquid injection nozzle is installed on one side of the top cover. By using the alkali and acid storage tanks on both sides of the stirring container, alkali or acid can be pumped into the interior of the stirring container, achieving pH adjustment of the solution. Simultaneously, using a controller and pH meter, automatic adjustment of the solution's pH value can be achieved, further facilitating the precipitation of vanadium solution.

This utility model discloses a refined cotton dust collection device. A partition is fixedly installed inside the tower body. One end of the dust inlet pipe is connected to the lower dust inlet area of ​​the tower body, and the other end of the dust inlet pipe is connected to the first induced draft fan. An exhaust port is opened at the upper end of the tower body, and an exhaust pipe extending upward to the exhaust area is provided at the exhaust port of the tower body. A dissolved air pipe is fixedly installed at the bottom of the water tank. One end of the exhaust pipe is connected to the exhaust port, and the other end of the exhaust pipe is connected to the dissolved air pipe at the bottom of the water tank. A stirring roller is rotatably installed inside the dissolved air pipe. A motor is fixedly installed on the outer wall of the water tank. The output shaft of the motor passes through the outer wall of the water tank and is connected to the stirring roller for transmission. The advantage of this utility model is that by setting up a dissolved air pipe, fine cotton dust is sent into the dissolved air pipe in the water tank, and under the action of the stirring roller, the fine cotton dust is fully contacted with water, and the water is used for washing and separation, resulting in good cotton dust collection effect.

The invention relates to the technical field of underground auxiliary transport vehicles, and discloses a mine transport vehicle CO tail gas treatment system, which comprises a tail gas connecting pipe, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, the water storage tank is arranged at the end part of the other side of the tail gas connecting pipe and is communicated with the tail gas connecting pipe, and the water storage tank is filled with water; the partition plate assembly is arranged on the inner side of the water storage tank and used for dividing the interior of the water storage tank into a specific path; the fire-retardant drying communicating piece is arranged on the water storage tank, communicates with the water storage tank and is used for fire-retardant and drying of the tail gas; and the CO ablating agent storage tank is arranged on the fire-retardant drying communicating piece and communicates with the fire-retardant drying communicating piece. The CO tail gas treatment system of the mine transport vehicle and the preparation method of the CO ablation block aim at effectively reducing the CO content in tail gas of the mine transport vehicle, improving the air quality in a mine and guaranteeing the health and safety of workers.

The application provides a composite positive electrode and a lithium ion battery, the composite positive electrode comprises at least one layer of ternary positive electrode material layer arranged on the surface of a current collector, and a protective layer is arranged on the side of the composite positive electrode in contact with an electrolyte; the protective layer comprises an acrylic copolymer containing at least one functional group of a hydroxyl group, an amine group and a carboxyl group and a solid-state electrolyte; the copolymer comprises a benzene ring structure, and a hydroxyl group structure is connected to at least adjacent substitution positions of the same benzene ring; the solid-state electrolyte is a block polymer comprising a soft segment and a hard segment; and the ternary positive electrode material layer accounts for 70-80% of the total thickness of the composite positive electrode. According to the application, the cycle performance of the battery can be greatly improved, and the precipitation of transition metals in the negative electrode is obviously improved.

A novel hydraulic pump station for mining includes an oil tank, a frame, and a control valve assembly mounted on the oil tank. The oil tank is located on top of the frame, and an oil pump assembly is mounted on the frame directly below the oil tank. The interior of the oil tank is divided into a return oil zone and an intake oil zone by a partition. The oil inlet of the oil pump assembly is connected to the intake oil zone via an oil suction filter, and the oil outlet of the oil pump assembly is connected to the inlet of the control valve assembly via a two-stage high-pressure filter. Water coolers and spray mechanisms are installed on both the front and rear sides of the oil tank. The water inlet of the water cooler is connected to a mining static pressure water supply system, and the water outlet of the water cooler is connected to the water inlet of the spray mechanism. The oil inlet of the water cooler is connected to the return oil port of the control valve assembly, and the oil outlet of the water cooler is connected to the return oil zone via a return oil filter. This invention features a compact overall structure, meets the requirements for use in confined spaces, and offers high cooling efficiency.

This invention discloses a hydraulic oil tank for ultra-high temperature environments, comprising a tank body, an oil inlet pipe located at the top of the tank body, and an oil outlet pipe located at the bottom of the tank body. A partition is installed inside the tank body, with the oil inlet and outlet pipes located on opposite sides of the partition. The partition has a hollow interlayer for containing coolant, and a heat exchanger connected to the hollow interlayer is installed outside the tank body. The partition design of this invention extends the circulation path of the hydraulic oil within the tank body, reduces the circulation speed of the hydraulic oil, and facilitates the precipitation of air bubbles and impurities in the hydraulic oil. The coolant circulates between the hollow interlayer of the partition and the heat exchanger, reducing the temperature of the partition and achieving cooling of the hydraulic oil around the partition, thereby improving the cooling effect of the hydraulic oil inside the tank.

The utility model provides a sludge treatment sludge discharge pipe filter tank, which comprises a filter tank body, two sides of the filter tank body are respectively communicated with a sludge inlet pipe and a sludge outlet pipe, a filter assembly is arranged in the filter tank body, the filter assembly comprises a filter plate, the filter plate comprises an inclined filter plate and a horizontal filter plate, and the inclined filter plate and the horizontal filter plate are arranged in the filter tank body. The filtering tank body is divided into a first cavity and a second cavity by the filtering plate, the first cavity is communicated with the sludge inlet pipe, and the second cavity is communicated with the sludge outlet pipe. In the filtering process, muddy water enters the first cavity of the filtering tank body through the mud inlet pipe and then enters the second cavity after being filtered by the filtering plate, and the muddy water entering the second cavity enters the lifting pump after being discharged through the mud outlet pipe, so that impurities in the muddy water are prevented from entering the lifting pump, and the protection of the lifting pump is facilitated.

The utility model discloses a sewage circulating filtering device, which belongs to the technical field of sewage filtering and comprises a filtering box, a motor is mounted on the outer side wall of the filtering box, a first movable rod is rotatably connected with the filtering box, a first stirring rod is fixedly connected to the outer side wall of the first movable rod, and a layering plate is fixedly connected to the inner side wall of the filtering box. The first movable rod movably penetrates through the layering plate. According to the sewage circulating filtering device, water above a layering plate and chemicals used for sewage treatment are stirred and mixed through operation of a motor, water in the middle section of a filtering box below the layering plate is stirred and treated through cooperative use of a small transmission wheel, a large transmission wheel and a transmission belt, and then the water in the middle section of the filtering box is filtered through the action of an ultraviolet irradiation lamp; according to the device, water under the layering plate is sterilized, so that the water and the medicament are fully mixed, bubbles or suspended solids in the water body can be destroyed by stirring the water, microorganisms in the water are more uniformly exposed in an ultraviolet irradiation area, and the whole water body is ensured to be effectively disinfected or sterilized.

The utility model discloses a water treatment optimizing device which comprises a device body, the device body comprises a bottom damping device, a main damping device, a mounting frame and a marine engine unit, the main damping device is mounted at the top of the bottom damping device, the mounting frame is mounted at the top of the main damping device, and the marine engine unit is mounted on the mounting frame. The marine engine unit is mounted at the top of the mounting rack; the main damping device comprises a bottom damping plate, a top damping plate, a plurality of groups of pneumatic damping columns and a plurality of groups of spring damping columns, the pneumatic damping columns and the spring damping columns are equidistantly mounted at the top of the bottom damping plate, and the top damping plate is fixed at the tops of the pneumatic damping columns and the spring damping columns. According to the device, the comprehensiveness of water filtration can be effectively improved, so that the quality of the filtered water is ensured.

The invention relates to the field of health care products, in particular to a deer blood peptide and ginseng compound oral liquid with an anti-fatigue function and a preparation method thereof.The deer blood peptide and ginseng compound oral liquid is prepared from, by mass, 140-160 parts of modified deer blood peptide powder, 20-40 parts of ginseng extract, 10-15 parts of phosphatidylserine and the like. According to the invention, synergistic compatibility and directional modification are carried out on core active components, a tiny component protecting and conveying system is constructed, efficient utilization and long-acting stability of functional factors are realized, and compared with the prior art, the product not only significantly improves the absorption and utilization efficiency of a human body, but also has the advantages of simple preparation process and low cost. Meanwhile, the precipitation problem and the taste defect of a traditional liquid preparation are effectively improved, the effects are definite, taking is comfortable, a new solution is provided for developing high-quality and modern large health products, and wide application prospects are achieved.

The utility model discloses a filtering device for grain grinding juice, which belongs to the field of grain processing and comprises a filtering box, a box cover is fixedly clamped at the upper end of the filtering box through bolts, a motor is fixedly arranged at the upper end of the box cover, a mixing shaft is fixedly arranged on a motor shaft of the motor, and a plurality of mixing sticks are fixedly arranged on the mixing shaft. A scraping plate is fixedly arranged at the lower end of the mixing roller, a cleaning brush is fixedly arranged at the lower end of the scraping plate, a filter sieve is fixedly arranged at the upper end of the interior of the filter box, the mixing shaft is driven to rotate through the motor shaft, and the mixing shaft drives the scraping plate to rotate through the mixing roller, so that grains at the upper end of the filter sieve are conveniently overturned through the mixing roller and the scraping plate; through the arrangement of the filter screen, juice accumulated in a grain pile is filtered and screened out, the juice filtering effect and speed are improved, meshes and the upper end of the filter screen are cleaned through the arrangement of a scraper and a cleaning brush, and the situation that the meshes of the filter screen are blocked to affect the filtering effect is avoided.

This application relates to the field of rainwater treatment technology, and in particular to a sponge flower box device for rainwater pipe outlets, including a water storage tank, a filter assembly, and a plant flower box. The top of the water storage tank is open, and a partition rod is connected to the top of the water storage tank, dividing the opening of the water storage tank into a first opening and a second opening. The first opening is used to place the filter assembly, and the second opening is used to place the plant flower box. The filter assembly includes a filter box and filter elements. The filter box is connected to the partition rod and the water storage tank. The outlet of the rainwater collection pipe communicates with the opening of the filter box. The filter elements are connected to the inside of the filter box. An installation hole is opened on one side wall of the filter box near the middle of the water storage tank, and a filter plate is connected to the filter box at the installation hole. The top of the plant flower box is open, and the plant flower box is connected to the partition rod and the water storage tank. Multiple permeable holes are opened at the bottom of the plant flower box to allow water from the water storage tank to pass through. This application has the effect of organically combining multiple functions such as rainwater collection, filtration, storage, and irrigation.

The present invention discloses a black and odorous water body dredging system and method. The method comprises the following steps: setting an enclosure dredging unit in a river section to be dredged; determining the thickness of the surface sediment that is prone to black and odor through investigation, sampling and analysis, hydraulically flushing the surface sediment in the enclosure dredging unit, so that the surface black and odorous sediment is fully floated to form a mud-water mixture, and quickly extracting the mud-water mixture from the enclosure dredging unit, separating the non-polluted coarse sand particles in the mud-water mixture by physical precipitation, and then discharging the remaining mud-water mixture containing the black and odorous sediment into a sewage treatment facility. The system comprises an enclosure dredging unit, a flushing system, a sand-water separation system and a gravity drain pipe arranged in the water body to be dredged. The black and odorous water body dredging system and method provided by the present invention have strong dredging pertinence, convenient operation, small working space, flexible movement, low dredging cost, and can be well applied to the dredging project of the surface sediment that is prone to black and odorous sediment in small and medium-sized rivers.

The invention discloses a NO8810 series alloy forging method. The technical scheme comprises the following steps: step S1, preparing a steel ingot: firstly, preparing a metal raw material according to a design formula to prepare a formed steel ingot; step S2: sending the steel ingot into a trolley furnace for heating, comprising: a preheating stage: heating the steel ingot to 600 DEG C and keeping the temperature; a heating stage: heating the steel ingot to 910-940 DEG C and keeping the temperature, and then heating the steel ingot to 1180±15 DEG C; step S3: forging the steel ingot, wherein the opening forging temperature of the steel ingot is greater than 1000 DEG C, the final forging temperature is not less than 850 DEG C, the edges are chamfered, the edges are pulled out, the bottom is chopped and the riser is chopped, and then the steel ingot is returned to the furnace for keeping the temperature; step S4: secondary forging of the steel ingot into a material. The invention has the advantages that, by designing alloy elements and matching a suitable process, the precipitation of titanium nitride, carbide and carbonitride is reduced, thereby reducing the generation of γ' phase, refining the alloy structure and strengthening the mechanical properties of the alloy.

The utility model discloses a sludge scraper for wastewater treatment, which comprises a sedimentation tank, a fixed plate fixedly connected above the sedimentation tank, a driving motor mounted above the fixed plate, a rotating rod arranged below the fixed plate, a mixing paddle fixedly connected to the side surface of the rotating rod, a first bottom scraping plate fixedly connected to the bottom of the side surface of the rotating rod, and a second bottom scraping plate fixedly connected to the bottom of the side surface of the first bottom scraping plate. The other end of the bottom of the side face of the rotating rod is fixedly connected with a second scraping bottom plate, and multiple sets of mud crushing cones are fixedly connected to the lower portion of the second scraping bottom plate. According to the utility model, the mud scraping and mixing functions are integrated in the same equipment. The mixing paddles fixedly connected to the side surface of the rotating rod are divided into two groups which are positioned at the upper end of the outer side and two groups which are positioned at the lower end of the outer side, so that when the rotating rod rotates, wastewater at different height layers in the sedimentation tank can be fully stirred and mixed, the coagulation and sedimentation of impurities in the wastewater are effectively promoted, and good conditions are provided for subsequent sludge scraping operation.