37results about How to "Reduce sedimentation" patented technology

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 invention relates to the technical field of water conservancy devices, and discloses a self-adjusting integrated gate which comprises a gate frame, a gate base and a gate frame, the gate base is arranged at the bottom of a water flow channel, the gate frame is arranged on the gate base, when the gate falls down, water flow cannot pass through, and the gate is composed of a first gate body and a second gate body. The first gate is arranged on the front side of the second gate, a gap is formed between the first gate and the second gate, a first gate notch and a second gate notch corresponding to the first gate and the second gate in position and shape are formed in the gate base, a base water inlet is formed in the front side of the gate base, and a base water outlet is formed in the rear side of the gate base. The base water inlet is communicated with the first gate notch, the base water outlet is communicated with the second gate notch, a water storage cavity is formed between the first gate notch and the second gate notch, the first gate notch and the second gate notch are communicated through the water storage cavity, and the bottom of the base water outlet is arranged in a downward inclined mode.

The utility model discloses an unmanned vehicle line control chassis high -efficient heat dissipation structure relates to vehicle chassis equipment technical field, is provided with the heat dissipation portion on the chassis, the heat dissipation portion is provided with a plurality of mutually parallel heat dissipation grating, and the inner airflow passage is formed between two adjacent heat dissipation grating, is provided with a plurality of mutually parallel heat dissipation fin on the upper end surface of a plurality of heat dissipation grating, and the outer heat dissipation passage is formed between two adjacent heat dissipation fins, and the interval between two adjacent heat dissipation grating is less than the interval between two adjacent heat dissipation fins, the heat dissipation fin upper edge contour line is extended from both sides to the center symmetry, and one side contour line section includes side horizontal section, large angle drop section, small angle rise section, central horizontal section in proper order, and the scheme simple structure can be high -efficient heat dissipation under the scene such as static parking, low -speed driving, high -speed operation etc.

The utility model belongs to the technical field of wastewater treatment, and particularly relates to wastewater treatment equipment which comprises an adjusting tank, two supporting rods are fixedly connected to the top of the adjusting tank, the two supporting rods are oppositely arranged, a first rotating shaft is fixedly connected to the ends of the two supporting rods, a medicine storage rod is fixedly connected to the middle of the first rotating shaft, the interior of the medicine storage rod is hollow, a first gear is fixedly connected to the middle of the medicine storage rod, a motor is fixedly connected to the middle of one supporting rod, and a second gear is fixedly connected to the middle of the other supporting rod. The output end of the motor is fixedly connected with a second gear, the second gear is meshed with the first gear, the middle of the medicine storage rod is fixedly connected with two hinged seats, the two hinged seats are oppositely arranged and fixedly connected to one end of the first gear in the hospital, the middle of each hinged seat is fixedly connected with a first connecting rod, and the middle of each first connecting rod is fixedly connected with a second connecting rod. According to the chemical treatment device, the effect of full play of chemicals can be effectively improved, the stability of the usage amount of the chemicals is improved, and the problems of waste and poor treatment effect caused by too much or too little addition of the chemicals are effectively reduced.

The present invention provides a swirl collision type flow channel anti-clogging dripper, including a collision flow channel and an arc-shaped baffle; at least one turning flow channel with a turning angle greater than 90 degrees is provided in the collision flow channel; a plurality of arc-shaped baffles are provided along the flow direction of the collision flow channel, and the plurality of arc-shaped baffles form a labyrinth channel, and the liquid medium is output in a dripping manner at the outlet of the collision flow channel through the collision of the liquid medium with the arc-shaped baffles. The arc-shaped baffle includes a plurality of baffle assemblies uniformly distributed in the collision flow channel along the flow direction; the baffle assembly includes a first arc-shaped long baffle, a second arc-shaped long baffle, a first arc-shaped short baffle and a second arc-shaped short baffle. The present invention uses a special arrangement of long and short arc-shaped baffles to make water flows collide with each other, and water flows collide with pipe walls and baffles, which plays a good energy dissipation role for the traveling water flow.

The utility model discloses a concrete structure curing device which comprises a frame. The mixing box is arranged at the top of the frame; the stirring assembly is arranged in the mixing box; the stirring assembly comprises a first motor, a rotating rod and a mixing frame; the top of the mixing box is fixedly connected with a first motor; an output shaft of the first motor is fixedly connected with a rotating rod through a coupling; the outer wall of the rotating rod is fixedly connected with a material mixing frame; and the maintenance assembly is arranged at the top of the frame. The concrete structure curing device is provided with a material pump, materials in a material mixing box can be pumped out through a material pumping pipe, curing materials can be conveyed into a spraying pipe through a connecting hose, the materials are evenly sprayed out through a plurality of spraying heads, and in addition, a second motor is arranged to drive a second bevel gear, so that the curing efficiency is improved. And a second bevel gear can drive a first bevel gear to rotate, so that the purpose of adjusting the angle of a spray pipe is achieved, the requirement of uniformly maintaining the pavement can be met, and the maintenance effect on the pavement is improved.

The invention provides a helical ribbon type pre-liming barrel which comprises a barrel body and a stirring device which is arranged in the barrel body and is used for mixing mother liquor and lime milk, the stirring device comprises a speed reducing motor fixed at the top of the barrel body, a transmission shaft connected with the output end of the speed reducing motor and extending into the barrel body, a plurality of helical ribbon fixing seats fixed on the transmission shaft, a plurality of helical ribbons detachably connected with the helical ribbon fixing seats, and a dispersing disc fixed at the bottom end of the transmission shaft; the barrel body is provided with a mother liquor inlet for mother liquor to enter, a lime milk inlet for lime milk to enter and a sand liquor outlet for outputting mixed liquor formed by mixing the mother liquor and the lime milk. According to the helical ribbon type pre-liming barrel, preheated mother liquor and lime milk are fully mixed through the helical ribbon stirring devices which are arranged in a staggered mode and the dispersing disc with the open bottom, the attachment surface is small, binders are not prone to being generated, and the helical ribbon type pre-liming barrel has excellent stirring performance.

The utility model relates to the technical field of electrophoresis tanks, in particular to an electrophoresis tank capable of being circularly adjusted, which comprises an electrophoresis tank body, a circulating pump, an adjusting component and a circulating component, the circulating pump is fixedly mounted on the right side of the electrophoresis tank body, the adjusting component and the circulating component are arranged on the electrophoresis tank body, and the circulating component comprises a second motor fixedly mounted at the bottom of the electrophoresis tank body. According to the electrophoresis tank capable of being circularly adjusted, by arranging the circulating assembly, electrophoresis liquid can circularly flow in the electrophoresis tank body under the action of the circulating pump in the process that a workpiece is subjected to electrophoretic coating through the electrophoresis tank body, and meanwhile, the electrophoresis liquid is always in a flowing state through rotation of a stirring rod and movement of a spoiler; and the circulating pipe is driven to move left and right, so that the effect that the liquid in the circulating pipe can impact different positions in the electrophoresis tank body is achieved, the precipitation of the electrophoresis liquid is reduced, and the electrophoresis quality is effectively improved.

The utility model discloses an automatic drainage device for land-based round pond culture, which comprises a culture pond, a precipitation mechanism, a microfiltration mechanism and a biochemical reaction mechanism, the bottom of the culture pond is of a conical structure and is provided with a drainage port, and the precipitation mechanism comprises a barrel body, an overflow groove, a water outlet pipe, a baffle ring, a central pipe, a water inlet pipe, a connecting rod, a water receiving plate and a sewer pipe; the bottom of the barrel body is of a conical structure, and a drain outlet is formed in the bottom of the barrel body; the overflow groove is formed in the barrel body; one end of the water outlet pipe enters the overflow groove; the baffle ring is connected with the overflow groove, and an overflow opening is formed in the top of the baffle ring; the central pipe is fixedly connected with the baffle ring; one end of the water inlet pipe horizontally penetrates through the barrel body and enters the central pipe, and the top surface of the water inlet pipe is vertically arranged upwards; the connecting rod is connected with the central pipe; the water receiving plate is connected with the connecting rod; and the sewer pipe is arranged at the bottom of the inner side wall of the barrel body. The tail water purification device can effectively purify tail water and is high in purification efficiency.

The invention discloses an integrated liquid cooling radiator for an electrical component, and relates to the technical field of liquid cooling radiators, the integrated liquid cooling radiator comprises a liquid cooling radiator, a liquid inlet auxiliary pipe and a liquid outlet auxiliary pipe, and the liquid inlet auxiliary pipe and the liquid outlet auxiliary pipe are fixedly communicated with the liquid cooling radiator. The moving stability of the liquid cooling radiator fixedly connected with the hollow cavity column can be effectively improved, it is guaranteed that the liquid cooling radiator on the hollow cavity column can be always in a parallel state with the attaching face of the electric appliance element when moving towards the direction of the electric appliance element, and the problems of local silicone grease loss, uneven thermal resistance and poor reliability caused by follow-up non-parallel attaching can be effectively avoided. The heat dissipation is influenced; and meanwhile, the fitting spring body can effectively improve the tight fitting degree between the liquid cooling radiator and the electrical element under the pressure of the elastic force of the fitting spring body while ensuring that the liquid cooling radiator is pushed to be close to the fitting surface in order.

The utility model relates to a leg traction frame, which belongs to the technical field of medical equipment and comprises a cold compress bag main body, a heat preservation box and a leg traction support, the leg traction support is fixedly connected with a leg supporting belt, the cold compress bag main body is arranged at the top of the leg supporting belt, a cold compress water bag is fixedly arranged in the middle of the inner wall of the cold compress bag main body, and the heat preservation box is arranged in the cold compress water bag. The two sides of the cold compress water bag fixedly communicate with circulating water pipes. According to the leg traction support, the legs of a patient can be placed on the leg supporting belt of the leg traction support, so that the affected limb can be lifted to promote backflow of venous blood and lymph, deposition of liquid in tissue gaps is reduced, the cold compress bag body can be placed on the leg supporting belt corresponding to the injured and affected part, and the cold compress bag body can be placed on the leg supporting belt in a mode of being attached to the pain position of the patient. Therefore, the comfort and the treatment effect are effectively improved.

The utility model provides a precipitation device, and relates to the technical field of batteries. The precipitation device comprises a container part, the container part is provided with a water inlet, a water outlet and N first cavities, the bottoms of all the first cavities are communicated, the tops of all the first cavities are communicated, the multiple first cavities are sequentially arranged from the water inlet to the water outlet, and N is larger than or equal to 2; wherein the top of the first first chamber is communicated with the water inlet, the water inlet faces the bottom of the first first chamber, and the top of the Nth first chamber is communicated with the water outlet. Overflow water is shunted through the multiple flow channels, the impact force of water discharged from the water outlet can be reduced, the impact degree on sediment deposited at the bottom of the first cavity can be reduced, turbulent flow can be prevented from being formed at the bottom of the first cavity, the sediment rolling-up degree of the turbulent flow can be reduced, and the sediment separation effect can be improved; in addition, due to the cooperation of a plurality of flow channels, precipitation work can be carried out respectively, and the precipitation effect and the precipitation efficiency can be improved.

The invention relates to the technical field of ultrafiltration membranes, in particular to a bundle tube type external pressure ultrafiltration assembly which comprises a plurality of bundle hollow tubes arranged side by side and further comprises membrane wire integrated bundles, a liquid collecting assembly and a flow dividing assembly, one membrane wire integrated bundle vertically penetrates through each bundle hollow tube, and the liquid collecting assembly and the flow dividing assembly are arranged side by side. The lower end of the bundling hollow pipe extends into the stock solution shunting cavity and is fixedly connected with the shunting assembly; sewage is shunted into the plurality of bundled hollow pipes through the shunting assembly, the sewage is filtered through the membrane wire integrated bundles in each bundled hollow pipe, and the hydraulic conditions of the membrane wire integrated bundles are relatively consistent under the guide action of the bundled hollow pipes, so that the membrane wire integrated bundles are uniform in water permeation, and the surfaces of the membrane wire integrated bundles are not easy to harden and hang mud; the problems of silting and blocking are not easy to occur, the anti-pollution performance of the assembly can be effectively improved, and the problem that silting and blocking are easy to occur among membrane wires in the operation process of the existing external pressure type ultrafiltration membrane is solved.

The utility model provides a concrete gravity dam structure in a river channel. The concrete gravity dam structure comprises a water retaining dam section, a water diversion and power generation dam section, a bottom hole flood discharge dam section and a surface hole flood discharge dam section. A plurality of water retaining dam sections are arranged, each water retaining dam section is of a gravity dam structure, and all the water retaining dam sections are arranged at the two ends and the middle area of the whole dam body and serve as a foundation dam section structure of the whole dam body; the at least one water diversion and power generation dam section is arranged between the two water retaining dam sections; the at least one bottom hole flood discharge dam section is arranged in a deep water area of the whole dam body; the number of the surface hole flood discharge dam sections is larger than that of the bottom hole flood discharge dam sections, and the surface hole flood discharge dam sections are arranged in a deep water area of the whole dam body. And the dam sections are matched, combined and connected to form a complete dam body. The concrete gravity dam structure in the river channel has the advantages of being high in dam body integration degree and high in structural stability.

The utility model discloses a numerical control machine tool waste chip collecting device, and relates to the technical field of numerical control machine tool waste chip collection, the numerical control machine tool waste chip collecting device comprises supporting legs, a first motor, a second motor, a first hydraulic rod and a filter screen, a conveying frame, a first auger and the first motor are arranged above the supporting legs, and a separation pipe is arranged on the left side of the conveying frame; a second auger, a second motor, a liquid outlet and a filter screen are arranged in the separation pipe, a compression pipe is arranged on the left side of the separation pipe, a first hydraulic rod is installed above the compression pipe, and a discharging table and a second hydraulic rod are arranged below the compression pipe; according to the equipment, the second hydraulic rod and the first hydraulic rod are matched to synchronously bear force from the two sides, so that the compression efficiency is improved, meanwhile, the second hydraulic rod is set as a supporting surface, the discharging table can be separated from the compression pipe after the second hydraulic rod is contracted, and a material cake is rapidly discharged.

The invention relates to the technical field of mixing devices, in particular to a mixing device for preparing transdermal patch glue, comprising a supporting base, a mixing drum is arranged above the supporting base, a first feeding pipe is fixedly connected to the top of the mixing drum, a second feeding pipe is fixedly connected to the upper side of the mixing drum, a sealing plate is fixedly connected to the opening at the bottom of the mixing drum, the sealing plate is fixedly connected to the supporting base, and a heating and stirring mechanism and a sedimentation and lifting mechanism are connected to the sealing plate; the invention forms transdermal patch glue by mixing and dissolving with glue liquid through the action of the heating and stirring mechanism, and in the process of mixing and stirring, the transdermal patch glue is continuously tumbled upwards through the action of the sedimentation and lifting mechanism, thereby increasing the up and down flow of the transdermal patch glue, reducing the sedimentation of the transdermal patch glue to the bottom, and accelerating the dissolution of the transdermal patch glue.

The utility model relates to silt treatment technical field, concretely relates to a multistage sand arresting dam irrigation canal system. The utility model discloses main inlet channel, first branch canal, second branch canal, is equipped with the shunt pool between main inlet channel and first branch canal, and there is connecting underground passage between first branch canal and second branch canal. Each level channel is T type, and is equipped with the sand arresting overflow dam of height gradually reducing and the sand discharge gate of diameter gradually reducing respectively. The bottom of shunt pool is 3 degree inclination inclined plane, and is connected with first branch canal through shunt gate. The system can effectively reduce downstream channel silt accumulation through multistage sand arresting overflow dam step by step intercepting silt, discharging again through sand discharge gate, has the advantages such as good sand arresting effect, low engineering cost, low maintenance cost, wide application range, can solve the silt problem of high fine sand containing water irrigation channel, guarantees agricultural irrigation stability.

The invention discloses a drainage structure of a transverse track at a level crossing, which belongs to the technical field of railway line drainage structures and comprises a first ditch section, a second ditch section and a support structure. The second ditch sections which are communicated with the first ditch sections on the two sides and transversely penetrate through the track line are arranged at the level crossing, the supporting structures are arranged in the second ditch sections, the first sleepers are arranged at the tops of the supporting structures, and the loads of the passing trains are borne through the supporting structures, so that the drainage structure has the drainage function and the sleeper function; and the drainage system can be ensured to be smooth while train passing is met. According to the drainage structure of the transverse track at the level crossing, a large amount of road change or ditch change caused by drainage requirements when a sightseeing train is in level crossing with a road is effectively reduced, the engineering amount is effectively reduced, the engineering investment is controlled, the whole supporting structure can be prefabricated and is convenient to implement, and the construction efficiency is effectively improved.

The utility model relates to the field of silt prevention devices, in particular to an estuary bay silt prevention device. The technical problem that most silt prevention devices are only provided with silt shielding structures, so that silt cannot be cleaned in time, and flowing water rises too fast is solved. According to the technical scheme, the estuary bay silt prevention device comprises a silt prevention device body. By arranging the fixed supporting silt settling assembly, water flow can be guided, the deposition position of silt can be controlled, silt can be deposited at a fixed position, silt cleaning is facilitated, the silt scouring prevention assembly can reduce deposition and silt disasters in the flood process by controlling the deposition positions of the water flow and the silt, the silt can be concentrated and cleaned, and the silt cleaning efficiency is improved. The silt sucking and cleaning assembly can keep the depth and smoothness of a channel, normal operation of ships and smooth transportation of goods are ensured, the risk of silt accumulation can be reduced, and damage to coastal infrastructures is reduced.

The invention relates to the technical field of foundation pit construction, in particular to a pipe-in-pipe double-layer filter material artesian well dewatering structure and a construction method.The pipe-in-pipe double-layer filter material artesian well dewatering structure comprises a first filter pipe, a second filter pipe, a first filter material layer and a second filter material layer, first water permeable holes are formed in the first filter pipe at intervals, and second water permeable holes are formed in the second filter pipe at intervals; the periphery of the second filter pipe is sleeved with the first filter pipe, an avoiding distance is formed between the first filter pipe and the side wall of the precipitation drill hole, the space between the side wall of the precipitation drill hole and the first filter pipe is filled with the first filter material layer, an avoiding distance is formed between the first filter pipe and the second filter pipe, and the space between the first filter pipe and the second filter pipe is filled with the second filter material layer; the diameter of the coarse filter material of the first filter material layer is greater than that of the fine filter material of the second filter material layer. According to the invention, surrounding underground water is in contact with the coarse filter material in the first filter material layer and the fine filter material in the second filter material layer in sequence; therefore, the condition that soil particles are deposited in the precipitation drilling well is reduced, and the foundation pit precipitation effect is improved.

The utility model belongs to the technical field of tungsten powder preparation, and relates to a spray drying device for tungsten powder preparation, which comprises a mounting frame, a reaction tank and a storage tank are fixedly mounted on the mounting frame, a gear ring is rotatably connected to the inner wall of the reaction tank, two scraping rods are symmetrically and fixedly connected to the bottom of the gear ring, and the scraping rods are slidably connected to the inner wall of the reaction tank. A material receiving assembly is arranged at the bottom of the reaction tank, a stirring assembly is rotationally arranged in the material storage tank, a driving assembly is arranged at the top of the material storage tank and drives the stirring assembly and the gear ring to rotate, material conveying assemblies are arranged on the material storage tank and the reaction tank, and an air injection assembly is arranged at the top in the reaction tank. The air injection end of the air injection assembly is located outside the discharging end of the conveying assembly. The material storage tank has the advantages that the motor is started to drive the rotating shaft and the stirring rod to rotate, so that the stirring rod stirs materials in the material storage tank, the materials in the material storage tank are uniformly mixed, and the condition of precipitation is reduced.

The application belongs to the technical field of high water level pipe network dredging device, in particular to a high water level pipe network dredging device, which comprises a dredging assembly, a sewage pipe, a vertical shaft and a driving well; the vertical shaft is communicated with the sewage pipe, and the driving well is communicated with the vertical shaft; the booster pump is pushed to slide along the limiting pipe by the propeller until it slides to the position where the sludge at the bottom of the sewage pipe needs to be cleaned, then the sewage sucked by the water inlet pipe on the right side of the booster pump is pressurized by the booster pump, and then sprayed out through the water jet pipe to spray the sludge at the bottom of the sewage pipe, and the sprayed sludge flows to the downstream of the sewage pipe under the action of water flow, reducing the accumulation of sundries in the sewage pipe; the device has efficient dredging function, can use the power and pressure of water flow to flush and remove the accumulated material, ensures the smoothness of the pipeline and avoids the accumulation of sludge in the sewage pipe, can greatly improve the dredging efficiency of long-term high water level pipe network, and reduce the maintenance cost and labor input.

The present invention provides a low-head dam fishway for high-sediment content and large head fluctuation, comprising an upstream water inlet section, a sedimentation tank section, a simulated natural fishway, a conventional fishway and a downstream water outlet section, wherein the sedimentation tank section is trapezoidal, and its long sides are respectively connected to the upstream water inlet section and the simulated natural fishway in a straight line, and its short sides are connected to the conventional fishway; the simulated natural fishway is a slope section, in which a first upstream gate, a plurality of baffles and a first downstream gate are arranged; the downstream water outlet section is respectively connected to the simulated natural fishway and the conventional fishway, and a fish guide fence is arranged at the confluence; the conventional fishway is provided with a second upstream gate and a sand retaining plate at the connection with the sedimentation tank section, and a second downstream gate is provided at the connection with the downstream water outlet section, and a plurality of partitions are arranged inside. The benefits of the present invention are: it achieves the goals of reducing the water sediment content of the fishway, ensuring the long-term reliable operation of the fishway through multi-mode operation, improving the attractiveness of the fishway inlet, and taking into account the discharge of ecological flow.

The present invention discloses an upper drainage submerged membrane device and a flushing control method thereof, comprising a sealed space provided inside the device body, an exhaust hole provided on the top; at least one membrane box fixed in the device body, a membrane assembly provided in the membrane box; a water inlet unit provided below the membrane box; a water production unit provided above the membrane box; an aeration unit provided below the membrane box; a backwash unit; an upper discharge unit provided above the membrane box; and a lower discharge unit provided below the membrane box. The lower water inlet and upper drainage of the present invention can realize intermittent air-water flushing during water production operation, and realize non-stop water flushing and upper drainage, so as to reduce the concentration of suspended matter during operation and reduce the flushing frequency; it can realize simplified flushing and drainage of only upper drainage but not lower drainage or lower drainage but not emptying for several times in the water production stage, and then perform a complete air-water flushing, air-water backwashing upper drainage, lower drainage, and emptying shutdown flushing and drainage, and the flushing and drainage in the water production stage can shorten the time consumed for drainage and intake, and reduce the drainage volume.

The utility model relates to gypsum board generating equipment technical field, concretely relates to a kind of adjustable gypsum slurry uniform material distribution device, including feeding hopper, regulating valve, horizontal auger conveyor and uniform discharge component;Feeding hopper is connected the input end of horizontal auger conveyor by regulating valve;Uniform discharge component includes tapering discharge nozzle, trapezoidal flow guide plate and transverse uniform flow grid;The input end of tapering discharge nozzle is connected the output end of horizontal auger conveyor;The top edge of trapezoidal flow guide plate is connected the outlet end of tapering discharge nozzle, the bottom edge of trapezoidal flow guide plate is connected transverse uniform flow grid, and multiple evenly distributed grids are formed on transverse uniform flow grid;Trapezoidal flow guide plate has multiple parallel and downward diffusion flow guide grooves, and flow guide groove is communicated tapering discharge nozzle and grid.The utility model can solve the problems of large energy consumption, easy to block, insufficient uniformity of material distribution and non-adjustable flow of existing material distribution mechanism.

The efficient welding device for gear machining comprises a top support and a welding gear, a sliding mechanism is arranged at the top of the top support, a sliding frame piece is fixedly installed at the top of the top support through four supporting columns, and four elastic supporting mechanisms are fixedly installed at the bottom of the top support; a bearing placement table is placed in the top surface of the top support by forming a communicating notch; when a rotating motor drives an output shaft and a moving gear piece to rotate and the moving gear piece is meshed with a meshing rack, the active moving effect is achieved, the arc-shaped concave plate base is conveniently driven to slide on the inner side of the sliding frame piece, the active rotating effect is improved, circumferential position rotating adjustment is integrally facilitated, and dead-angle-free movement matched with welding operation is facilitated; therefore, the angle adjustment convenience is improved, a stable structural assembly is provided for welding control equipment, efficient operation and multi-range and multi-angle position adjustment are facilitated, and the operation efficiency is improved.

This invention discloses an improved AG fixture, comprising: a fixture body, a storage space adapted to hold glass, an upper surface of the fixture body being a first plane, a bottom surface of the storage space being a second plane, the first plane being located above the second plane, and glass adapted to be placed in the storage space being positioned between the first and second planes. The glass has protrusions, the upper surfaces of which protrude beyond the first plane. This invention effectively prevents glass displacement and chipping during processing, structurally avoids localized etching anomalies, reduces color defects and glass damage, ensures continuous and stable processing, and, in conjunction with fixture structural optimization, forms a synergistic effect, solving the problem of chemical waste in existing technologies, while improving product yield and reducing overall production costs.

This invention provides an eco-hydraulic channel device and its usage method that are adaptive to water and sediment rhythms. The aim is to regulate sediment deposition in lakeside wetlands, ensure ecological water use, improve water quality, and restore the ecosystem by constructing a channel device and intelligent management system adapted to the hydrological rhythms of lakes. The device includes an inlet section (containing a narrow / deep / shallow-wide cross-section and permeable dikes), an ecological overflow section (divided into shallow habitat zones, surface flow purification zones, and deep pool conservation zones), a sediment interception system (prefabricated triangular cones and sedimentation tanks), and an intelligent management unit (water quality monitoring, water level sensing, and automated control modules). This invention can significantly improve the ecological water level guarantee rate of lakeside wetlands, reduce sediment deposition, enhance the self-purification capacity of water bodies, enrich biodiversity, and is suitable for lake ecological restoration projects.

The utility model discloses an ink cylinder for a sheet-fed gravure press, which comprises a cylinder body, a first partition plate is arranged in the cylinder body, the cylinder body is divided into an ink inlet cylinder body and an ink outlet cylinder body by the first partition plate, and a first flow guide hole communicated with the ink inlet cylinder body and the ink outlet cylinder body is arranged at the bottom of the first partition plate; compared with the prior art, the ink tank has the advantages that the flowability of ink in the tank body is improved through the arrangement of the first partition plate, in the using process, along with the reduction of the amount of the ink in the ink outlet tank body, the ink in the ink inlet tank body can be automatically supplemented into the ink outlet tank body, along with the flowing of the ink, precipitation layering generated in the standing process of the ink tank body is reduced, and the printing quality is improved.

The present application relates to rain sewage shunt technical field, specifically disclose a kind of unpowered buoyancy control type rain sewage shunt, including outer shell, integrated flow channel device, central control block, siphon and round plug ring.Center control block is composed of upper and lower linkage rainwater hollow box and sewage hollow box, can be slidable along the shunt passage axis.This device does not need external power, relies on buoyancy and self-weight to automatically switch rain sewage flow channel, sunny day to open sewage channel, rain to open rainwater channel, cooperate with breathing tube to balance air pressure to avoid jam, with the help of siphon to realize automatic reset.Compact structure, stable operation, applicable to community rain sewage shunt reconstruction and new drainage system.