223results about How to "Accelerated settlement" patented technology

The invention provides a precipitation method of a heavy metal solution. Cations in the heavy metal solution comprise nickel ions, cobalt ions, copper ions, zinc ions and manganese ions, and the precipitation method comprises the following steps: step S100, carrying out a manganese conversion reaction on an alkaline substance by adopting a solution containing manganese ions to obtain a converted manganese precipitate; s200, a stabilizing agent is adopted for carrying out a stabilizing reaction on the converted manganese precipitate, and a stable manganese precipitate is obtained; step S300, adding the stable manganese precipitate into a heavy metal solution for precipitation reaction to obtain precipitate slurry; step S400, continuously carrying out solid-liquid separation on the precipitate slurry to obtain a heavy metal precipitate and a manganese-containing solution; and S500, raw materials including the manganese-containing solution, an oxidizing agent and alkali liquor are subjected to an oxidation precipitation reaction, and a post-precipitation solution and a manganese product are obtained. The method solves the problems of poor sedimentation and filtration performance of a precipitation product, high moisture content of the precipitation product and low precipitation efficiency when heavy metals are precipitated in the heavy metal solution.

The invention relates to the technical field of sewage treatment, and discloses a micro-plastic-containing sewage water body treatment agent and a preparation method thereof. The preparation method comprises the following steps: adding quaternary ammonium salt modified chitosan modified carbon nanotubes, carboxyl betaine cellulose modified polyacrylamide and polyaluminum chloride into a reactor, and stirring to obtain the micro-plastic-containing sewage water body treatment agent. The carbon nanotubes can provide abundant adsorption sites to adsorb micro-plastic particles in water; the quaternization modification enhances the charge neutralization, bonding bridging and netting sweeping effects of the chitosan; after the quaternary ammonium salt modified chitosan and the carbon nanotubes are compounded, the dispersity of the carbon nanotubes is improved, and the removal effect on the micro-plastics is enhanced; long-chain groups are grafted on the surface of the cellulose, so that the hydrophobicity is improved, and the surface activity of the cellulose is improved; polyacrylamide molecular chains contain anionic and cationic groups at the same time, positive and negative charges can interact with each other in water, a cross-linked network is formed in the molecular chains and among the molecular chains, and the removal effect on micro-plastics is improved.

The invention discloses a red sandstone foundation pit drainage structure and a construction method thereof, and relates to the technical field of foundation pit drainage, the red sandstone foundation pit drainage structure comprises a buoyancy assembly, a water suction pump, an electromagnetic three-way valve and two sediment filtering assemblies, and the two sediment filtering assemblies are controlled by the electromagnetic three-way valve to alternately work; the silt filtering assembly in a working state is used for filtering silt, and the silt filtering assembly in an idle state is used for precipitating and collecting the intercepted silt. Alternate work of the two sediment filtering assemblies is achieved through the electromagnetic three-way valve, drainage continuity is guaranteed, the idle time of the sediment filtering assemblies is effectively utilized for sediment collection, and the situation that efficiency is reduced due to frequent cleaning of a traditional single filtering system is avoided; and the cleaned silt is independently collected, and does not enter the raw water body to cause the increase of the silt concentration and influence the subsequent drainage.

The flow stabilizing device comprises a feeding pipe, a vertical discharging pipe, a reverse feeding barrel and a guide plate, the upper end and the lower end of the discharging pipe are each of an opening structure, and the barrel wall of the reverse feeding barrel is arranged on the outer side of the discharging pipe; the lower end of the barrel wall is connected with the pipe wall of the discharging pipe in a watertight mode through the barrel bottom, the upper end of the barrel wall is higher than the upper end of the discharging pipe, and a feeding port communicated with the feeding pipe is formed in the lower portion of the barrel wall. And the guide plate is wound between the pipe wall of the blanking pipe and the barrel wall of the reverse feeding barrel in a spiral ascending manner. The flow stabilizing device provided by the utility model can effectively stabilize the flow of the ore pulp before the ore pulp enters the concentration tank of the concentration system, so that the ore pulp can be sufficiently flocculated, and the concentration effect is remarkably improved.

The invention provides a chip analysis method and device and a readable storage medium, and the method can divide a plurality of to-be-tested chips into a plurality of to-be-tested groups, test the to-be-tested chips in each to-be-tested group in sequence and determine a first statistical parameter, and also can test the to-be-tested chips in the to-be-tested groups after the to-be-tested chips in the to-be-tested groups are all tested. And generating a second statistical parameter based on the test result, thereby generating a corresponding optimization suggestion report and stopping the test when the first statistical parameter or the second statistical parameter meets a corresponding preset condition. The scheme provided by the invention can adapt to test requirements of chips of different numbers and types, ensures that chip analysis has better regularity and reliability through grouping test, can timely find test problems and improve the overall quality of the chips, generates a corresponding optimization suggestion report, provides a specific improvement direction, and improves the test efficiency. And an engineer is helped to quickly position a problem and formulate a solution, so that a subsequent test strategy is flexibly adjusted.

According to the preparation method of the phosphoric acid-calcium-based sludge carbon for in-situ culture of the continuous flow aerobic granular sludge, the sludge carbon is treated by using phosphoric acid and calcium hypochlorite, and the phosphoric acid-calcium-based sludge carbon has surface wrinkles, a large number of oxygen-containing functional groups and lower Zeta potential; in-situ rapid formation of the continuous-flow aerobic granular sludge is regulated and induced through combined regulation and control of phosphoric acid-calcium-based sludge carbon and regular sludge discharge measures, popularization and application of a continuous-flow aerobic granular sludge process are facilitated, the formation time of the continuous-flow aerobic granular sludge is shortened, a new way is provided for culture of the continuous-flow aerobic granular sludge, and the method is suitable for large-scale popularization and application of the continuous-flow aerobic granular sludge. And the theoretical technical bottleneck of aerobic granular sludge application is solved.

The utility model relates to a two-stage road pavement structure for an unstable roadbed, which is particularly suitable for an unstable area easy to settle and comprises a first-stage pavement structure and a second-stage pavement structure positioned behind the first-stage pavement structure for construction, wherein the first-stage pavement structure is provided with a pre-sedimentation pavement base layer and a prefabricated high-strength concrete interlocking block surface layer, the prefabricated high-strength concrete interlocking block surface layer is arranged on the pre-sedimentation pavement base layer, the second-stage pavement structure comprises a leveling layer and an asphalt surface layer, the leveling layer is located on the prefabricated high-strength concrete interlocking block surface layer, and the asphalt surface layer is located on the leveling layer. And the asphalt surface layer is positioned on the leveling layer. The utility model has the advantages of low manufacturing cost, high bearing capacity, good durability, convenience in construction, easiness in maintenance and replacement and strong adaptability to settlement deformation, and can fully ensure the use of the whole life cycle of the road; subgrade settlement is accelerated; construction is completed in a short time, and the influence on current traffic is small; dismounting and reconstruction are not needed, and resources are saved.

The invention discloses a mining dust concentration monitoring and early warning method, and belongs to the technical field of coal mining, and the method comprises the following steps: data acquisition; a mine respirable dust concentration wireless sensor and a mine intrinsic safety type holder type infrared camera are used for collecting the dust concentration and the environment visibility in a mine respectively; processing and analyzing data; the mining intrinsic safety type wireless monitoring host processes the received data to obtain the dust concentration, and whether the dust falling device needs to be started or not is judged based on the dust concentration; if the dust concentration exceeds the preset range, the dust falling device is started until the obtained dust concentration is within the preset range; compared with the existing dust concentration monitoring means, the mine dust disaster monitoring system can realize dynamic perception, accurate early warning and intelligent management and control of mine dust disasters, introduces a real-time monitoring technology in order to timely discover and solve the problem that the dust concentration exceeds the standard by introducing intelligent and automatic technologies, and can also realize remote monitoring at the same time.

The invention relates to the technical field of sewage treatment, in particular to a polymeric ferric sulfate processing and feeding device and method for sewage treatment. Comprising a sewage tank, a rotating motor is arranged at the end of the sewage tank, a lead screw is arranged at the output end of the rotating motor, a moving seat is arranged on the surface of the lead screw, pressing rods are arranged on the two sides of the moving seat, the ends of the pressing rods extend to the outer wall of the sewage tank, and a mixing assembly is arranged below the pressing rods. When the moving seat moves, the pressing rod is driven to press the top of the pressing head, the pressing head pushes the sliding rod to slide on the inner wall of the column casing and extrude water in the column casing, the water is sprayed out through the top of the spraying disc, and the nearby water is impacted while the water is sprayed; and when the spraying discs sequentially impact sewage in the sewage tank, increased impact force exists between the wastewater, so that the sewage is mixed, and the mixing efficiency of the sewage and the polymeric ferric sulfate medicament is improved.

The invention provides anti-scattering water-guided laser cutting fluid as well as a preparation method and application thereof. The anti-scattering water-guided laser cutting fluid comprises the following components in parts by weight: 0.1-1 part of an anti-scattering agent; 0.01 to 0.1 part of a foam discharging agent; 1-5 parts of a refractive index regulator; and 80-99 parts of ultrapure water. The anti-scattering agent is a polymer; the foam removing agent is one or more of hydroxymethyl cellulose, hydroxy propyl cellulose, sodium lignin sulfonate, potassium lignin sulfonate and naphthalene sulfonic acid formaldehyde condensate sodium salt; the refractive index regulator is an iodine-containing compound and / or a fluorine-containing compound. According to the anti-scattering water-guided laser cutting fluid, light beam scattering and energy loss in the water-guided laser cutting process can be remarkably reduced, and the cutting precision and efficiency are improved. The anti-scattering water-guided laser cutting fluid has very good application prospects and large-scale industrial popularization potential in the field of water-guided laser cutting.

The invention discloses an improvement method of sludge soft soil layer shield muck, and belongs to the technical field of shield tunnel construction muck improvement. Metakaolin, blast furnace slag, lignosulfonate and nano silicon dioxide powder are mixed to prepare a mixed raw material, the mixed raw material is pumped into a muck bin, then an alkali-activated solution is pumped into the muck bin, and the mixed raw material is stirred to be uniform; and after mixing and stirring, adding anionic polyacrylamide powder and bentonite, and continuously stirring until a gel system is generated, thereby completing muck improvement. According to the invention, sodium hydroxide and sodium silicate are used as alkali-activated solutions to activate a gel system, blast furnace slag provides a large amount of silicon elements and aluminum elements, and metakaolin contains silicon, aluminum and calcium elements to improve the strength of the gel system; during use, the two raw materials are separated, so that the two raw materials are prevented from reacting in advance before reaching a muck bin to generate gel, and pipeline blockage is avoided; the anionic polyacrylamide and the bentonite are matched, so that the permeability is improved, the drainage of water is facilitated, and the occurrence of spewing is effectively prevented.

The invention discloses a method for green and efficient extraction of functional components in spina date seeds. The method comprises the following steps: crushing spina date seeds, removing seed coats and endosperm, deoiling cotyledons with petroleum ether, performing low-temperature water extraction on peeled and deoiled spina date seed powder, filtering and clarifying extract liquid with a hollow fiber membrane or a ceramic membrane, performing reverse osmosis concentration to remove most of water, and drying concentrated liquid to obtain the spina date seed extract highly enriched with functional components. In the extraction process, petroleum ether is used in the deoiling part, only water is used in the other steps, no solvent with obvious toxicity and pollution is used in the whole extraction method, the method has the advantages of safety, environmental protection, simple process, low cost, good extraction effect and the like, and the obtained extract is green and safe, can be directly used in the fields of medicines, foods and the like, and has wide application prospects. And by-products such as seed coats and endosperm of spina date seeds, extracted spina date seed oil and spina date seed starch and protein settled at the bottom after extraction can be further utilized and developed, so that more additional values are created for enterprises.

The present application relates to a fast-infiltration agricultural and forestry non-point source interception device, which relates to the field of agricultural and forestry non-point source pollution control, including a flow ditch and two sedimentation tanks, the flow ditch and the two sedimentation tanks are connected by a three-way drainage pipe, a mechanical filter structure and an ecological filter structure are arranged in the flow ditch, a partition is installed in the middle of the sedimentation tank, and the sedimentation tank is divided into an anaerobic tank and an aerobic tank by the partition; a plurality of baffles are arranged in the anaerobic tank for retaining polluted water sources and performing anaerobic decomposition; a plurality of vertical biofilm decomposition tubes are arranged in the aerobic tank for degrading N and P pollutants in the polluted water sources. The present invention arranges an anaerobic tank and an aerobic tank in the sedimentation tank, nitrate ions and phosphorus ions can be preliminarily decomposed in the anaerobic tank, and aerobic bacteria are planted in the aerobic tank, which can promote the decomposition or sedimentation of N and P ions in the polluted water sources, thereby removing N and P ions in the polluted water sources.

The invention relates to the technical field of water pollution treatment, in particular to application of a cerium salt coagulant in water treatment. The specific application method comprises the following steps: adding the cerium salt coagulant into a to-be-treated water body under stirring, carrying out a coagulation reaction, and settling floc generated by the coagulation reaction to obtain the treated water body, the cerium salt coagulant is cerium-containing nitrate, ammonium nitrate, chlorine salt, sulfate or oxalate; the water body to be treated is a water body containing organic matter-turbidity or algae. The invention solves the problem that the conventional treatment process has low removal effect on algae and organic pollutants in water and the problems of narrow applicable pH range, poor coagulation effect at low temperature and high concentration of residual metal ions in the application process of the traditional coagulant.

The invention belongs to the technical field of chemical agents, and provides a preparation method and application of an algicide for synchronously removing water bloom algae cells and algal toxins, the algicide is composed of calcium hypochlorite and natural clay, and the mass ratio of calcium hypochlorite to clay is 1: 1-5; the natural clay is at least one of bentonite, kaolin or diatomite; natural clay is used as a flocculating agent to prepare the algaecide, the algaecide is basically free of pollution to the ecological environment of a water body, calcium hypochlorite breaks the surface charge balance of algae cells by damaging the algae cells, rapid flocculation and sedimentation of the algae cells under the action of clay are facilitated, the removal rate reaches up to 80% or above, and the flocculation and sedimentation efficiency of the natural clay on the algae cells is far higher than the flocculation and sedimentation efficiency of the natural clay on the algae cells; after the algaecide is used for treatment, algaecide cells are broken, algaecide toxins in the cells are released, but calcium hypochlorite can quickly oxidize the toxins, so that the algaecide can synchronously remove algaecide toxins in water while removing water bloom algaecide cells, and the removal rate is up to 90% or above.

The invention discloses a deep-sea mining plume inhibition technology using an AUV (Autonomous Underwater Vehicle) to add a flocculating agent, which comprises a mine car, a solution mixing container is arranged in the mine car, a stirrer is arranged on the solution mixing container, a second flow pump is arranged on the left side of the solution mixing container, and one end of the second flow pump is connected with the solution mixing container through a conveying pipeline; the other end of the solution mixing container is connected with a water pumping pipeline through a conveying pipeline; a jet flow pump is arranged on the left side of the solution mixing container; a flocculating agent is accurately added through the AUV, aggregation and sedimentation of suspended particulate matter are promoted, formation and diffusion of plume are effectively inhibited, pollution of deep-sea mining to the marine environment is reduced, the AUV can conduct autonomous navigation and control operation underwater, the system can adapt to the complex deep-sea environment, and the service life of the system is prolonged. The application scene of the technology is wide, the flocculant can be used for reducing plume generation, the drag reducer can also be used for reducing water jet resistance, and the mining efficiency is improved.

The utility model relates to the technical field of sewage treatment, and provides an aerobic granular sludge densification preparation device and a sewage treatment system.The aerobic granular sludge densification preparation device comprises a body, a sludge inlet pipe and a sludge outlet pipe, an inlet of the anoxic zone is suitable for being communicated with an external sewage source; the baffling reaction area is provided with a plurality of first channels and second channels which are connected; an inlet of the aerobic zone is communicated with an outlet of the baffling reaction zone, and an outlet of the aerobic zone is communicated with an outlet of the anoxic zone. According to the aerobic granular sludge densification preparation device, aerobic granular sludge can be generated, compared with flocculent sludge, the granular sludge has good settleability, and the increase of the cost of post-stage precipitation separation is avoided. Moreover, the biomass of the granular sludge is increased, and the granular sludge is rich in variety, so that the treatment load can be improved under the same aeration rate. In addition, technical improvement and upgrading can be achieved under the condition that existing technological conditions are not affected, and the risk of production halt construction or operation with water is avoided.

The invention belongs to the technical field of sludge treatment, and particularly relates to an aerobic granular sludge sewage treatment process applied to a continuous flow activated sludge process. A pelletizing agent is added into a granular sludge incubator, so that the pelletizing agent is in targeted combination with filamentous bacteria in activated sludge to form granular sludge, the granular sludge and flocculent sludge are effectively separated through a cyclone separation system, the granular sludge continuously flows back into a biochemical system, and the flocculent sludge is discharged into a sludge concentration tank or a sludge storage tank for dehydration treatment. According to the present invention, the AGS is rapidly cultured and the stable operation is maintained in the current or new continuous flow activated sludge process, such that the treatment water amount of the traditional continuous flow sewage treatment process can be subjected to in-situ capacity expansion, the impact load resistance can be enhanced, the addition amount of the phosphorus and nitrogen removal agent can be reduced, and the in-situ excess sludge can be reduced.

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 application relates to a silicon-aluminum-based rapid curing material of high-water-content soft soil and a preparation method thereof. The silicon-aluminum-based rapid curing material comprises, in parts by weight, 16-18 parts of sand washing filter cake, 2-4 parts of walnut shell, 3-6 parts of metakaolin, 1-2 parts of calcium oxide, 0.5-1 part of silica ash, 0.4-0.8 part of sodium silicate, and 0.1-0.2 part of sodium hydroxide. The application can directly cure high-water-content soft soil, even the soft soil with a water content greater than the liquid limit, and the cured soft soil meets the road use requirements.

The application discloses a separation system for recycling leaf filter waste residue in an alumina production process, comprising a pressure separation device, a feed pump connected between a leaf filter waste residue slurry source and a feed inlet of the pressure separation device, an external tank dilution circuit, an overflow outlet of the pressure separation device connected to an inlet front end of the feed pump through a shunt pipeline, a underflow pump connected to an underflow outlet of the pressure separation device, a vacuum belt filter connected to an outlet of the underflow pump, a pulping tank arranged below a filter cake discharge outlet of the vacuum belt filter, and a conveying pump connected between an outlet of the pulping tank and a pre-desilication process of an alumina production system. Through the synergistic effect of high solid content mud layer sedimentation technology and external tank dilution technology, the industry problem that leaf filter waste residue is difficult to settle, concentrate and filter and separate due to easy hydrolysis under the condition of low caustic alkali concentration and low molecular ratio and a large amount of fine planktonic matter is effectively solved.

The utility model relates to a dust explosion protection system for a chemical workshop. The dust explosion protection system comprises a dust removal assembly and a spraying assembly, the dust removal assembly comprises a dust removal box, an air inlet pipe and an air outlet pipe are connected to the dust removal box, a filter cloth frame and a screen plate are installed on the inner wall of the dust removal box, a plurality of pieces of filter cloth are connected between the filter cloth frame and the screen plate, an exhaust fan is installed in the dust removal box, a transmission rod penetrates through the center of the exhaust fan, and a driving motor is installed on the outer side of the dust removal box; a worm is in butt joint with the driving motor, a turbine is meshed with the worm, and the turbine is in butt joint with the transmission rod; the spraying assembly comprises a piston pump, a water inlet pipe and a water outlet pipe are in butt joint with the piston pump, the piston pump comprises a pump shell, a rotary disc is installed in the pump shell, a connecting rod is hinged to the rotary disc, a piston is hinged to the connecting rod, a rotary shaft penetrates through the center of the rotary disc, a first gear is in butt joint with the rotary shaft, a second gear is meshed with the first gear, and the second gear is in butt joint with a worm. And the driving motor can drive the piston pump to operate while driving the draft fan to operate.

The invention provides a silk fibroin compound loaded with a polyhydroxy phenolic compound and a preparation method of the silk fibroin compound, aiming at the defect that the existing hemostatic material has a poor effect on large wounds and serious bleeding, and the silk fibroin compound loaded with the polyhydroxy phenolic compound is prepared by self-assembly of the polyhydroxy phenolic compound and silk fibroin; wherein the silk fibroin is subjected to a beta folding conformation transformation process, the polyhydroxy phenolic compound is preferably an indissolvable compound and most preferably ellagic acid, and the feeding ratio of the polyhydroxy phenolic compound to the silk fibroin is the mass ratio lt; 1: 1, preferably 1: 2-1: 16, and more preferably 1: 4. The hemostatic capacity of the compound is obviously better than that of polyhydroxy phenolic compounds, silk fibroin, Yunnan Baiyao, tranexamic acid, chitosan hemostatic powder and the like. Meanwhile, compared with silk fibroin, the silk fibroin is larger in particle size and heavier in texture, and can quickly settle to a bleeding opening in blood. The compound is free of cytotoxicity, free of hemolysis, capable of being self-degraded in vivo and high in safety. Meanwhile, the hydrogel has the characteristics of wound healing, antibiosis, anti-infection, anti-adhesion and the like, and can be applied to preparation of corresponding preparations.

The present application relates to the technical field of coal mining simulation experiment equipment, in particular to a mine coal mining working face support simulation experiment device, which comprises an experiment box made of transparent glass material, a plurality of support plates are supported by a plurality of hydraulic cylinders at the bottom of the experiment box, a rock mass collapse simulation mechanism is arranged above the support plates, the rock mass collapse simulation mechanism is used for simulating the pressure of the support plates when the rock mass above the coal mining roadway working face breaks and collapses, so as to adjust the support strength of the support plates in the coal mining roadway, a discharge control assembly is arranged in the experiment box, the discharge control assembly is used for discharging the rock blocks above the support plates in a controlled amount, which facilitates the pressure simulation experiment of the rock mass collapse simulation mechanism on the support plates, so that the support safety and stability of the support plates in the coal mining working face on the goaf can be simulated, and more accurate data support can be provided for the construction personnel when supporting the support plates in the coal mining working face.

The invention provides a fault analysis method and device and processing equipment. The method comprises the following steps: acquiring a fault report; obtaining a subject keyword in the fault report as a target subject keyword; according to the target subject keyword, determining a subject corresponding to the generated fault as a target subject; and obtaining an analysis result of the fault according to the target subject.

A kind of double half-ring type anti-settling buried protection device, including buried cylinder, buried upper cover and two clamps;The buried cylinder is the cylinder that is permeable up and down, the upper end of the buried cylinder is integrally formed with the detection cylinder section for built-in installation and protection gas detector;The buried upper cover can be detachably installed at the upper end of the detection cylinder section, for closing the upper port of the detection cylinder section, so as to protect gas detector when burying;Two clamps are detachably connected together and tightly embrace on the outer circumference of the detection cylinder section;The outer circumference of the clamp is integrally formed with anti-settling half-ring, and two anti-settling half-rings are synthesized into whole circular anti-settling ring.The buried cylinder of the utility model can effectively increase the contact reliability with the earth by two anti-settling half-rings, so that the buried cylinder can be stably fixed in the earth, the pressure capacity of buried protection device is enhanced, and settlement is avoided, and the design of two clamps can effectively reduce the installation difficulty of the whole device.

The present invention belongs to the technical field of wastewater treatment, and discloses a high-efficiency device for treating hydrometallurgical wastewater and a treatment process thereof; the device comprises a treatment box, a side wall of the treatment box is connected and fixedly connected with a water inlet pipe, and a valve is installed on the water inlet pipe. The present invention provides a plug flow circulation component and an auxiliary sedimentation component, after the mixed liquid of wastewater and treatment agent is put into the treatment box, the first motor is started to drive the rotating blade to rotate, and the rotating blade can push the wastewater forward, so that the wastewater moves in the direction of the first inclined plate and the second inclined plate. Due to the effect of the partition plate, the wastewater forms a cycle in the treatment box, and the floccules and sediments in the wastewater are constantly in contact with the first inclined plate and the second inclined plate during the circulation process, thereby increasing the contact time and opportunity between the suspended matter and the inclined plate, which is conducive to the sedimentation of the suspended matter, and the plug flow circulation can also make the treatment agent and the wastewater fully mixed to prevent stratification due to static sedimentation.

The invention provides a form production management system supporting creation of multiple service modules, and the system comprises a master control unit which is used for monitoring and controlling the overall operation of the system, and managing user accounts and permissions at the same time; the form making unit is used for creating and editing a form by a user; the business module unit is used for managing and executing business logic of the system and creating, configuring and managing various business modules according to business requirements; the data management unit is used for managing and storing all data in the system, including original data, intermediate processing results and final analysis reports, and providing data support; a notification management unit; the form production management system supporting the creation of the multiple service modules has the advantages of efficient data processing capability, relatively strict safety guarantee and flexible expansibility, and provides certain convenience for users.

The utility model relates to a heat supply unit automatic exhaust equipment technical field, specifically speaking is a kind of heat supply unit primary network supplement secondary network automatic exhaust device, including jar body, the water inlet pipe and water outlet pipe for supplementing water are provided in the jar body periphery;Water source after the turbulence of the type plate will enter conical pipe, the spiral groove of conical pipe inner periphery is convenient to the water source and makes water source form spiral force pass through conical pipe and enter the bottom side of jar body, simultaneously, small particle solid and float carried in water source can be thrown to the inner wall on the bottom side of jar body under the centrifugal force generated by spiral conveying, and it is convenient to settle in jar body bottom, and the conical pipe of conical structure is convenient to the interception of small particle solid and float, and the vertical pipe of ring seat inner periphery in the bottom of conical pipe can be convenient to the water source of reflux and spiral conveying and shunt, to further reduce the condition that small particle solid and float are moved by water source and move accordingly.

The utility model relates to the field of integrated stove accessories, and particularly discloses a volute filter screen of an integrated stove, which is fixed at an air inlet of a fan volute of the integrated stove and comprises an oil guide cover protruding from the periphery to the middle, the oil guide cover protrudes towards the outside of the fan volute of the integrated stove, and a plurality of long air guide holes are distributed in the oil guide cover along the circumferential direction. The air guide hole is bent into an arc shape in the rotating direction of the integrated cooker fan, and the air inlet face of the air guide cover is located on the edge of one side of the air guide hole and provided with a guide edge inclining in the air inlet direction. The oil fume can be guided into the fan volute of the integrated cooker in a spiral shape, noise is reduced, wind power is increased, and meanwhile collision, fusion and sedimentation of oil dirt particles are facilitated.