17results about How to "Relieve blockage" patented technology

A hidden drainage ditch system of a building curtain wall comprises a drainage ditch, a cover plate is installed on the drainage ditch, a water inlet is further formed in the upper portion of the drainage ditch, and the hidden drainage ditch system further comprises a filtering assembly arranged at the water inlet. The filtering assembly further comprises a primary filtering piece and a secondary filtering piece; the primary filter part comprises a barrier plate mounted at the water inlet, and a drainage gap for water flow to pass through is formed between the barrier plate and the water inlet; the secondary filtering piece comprises a filtering plate and a plurality of leakage holes formed in the filtering plate. According to the utility model, the blockage problem of the drainage ditch can be further relieved, and the maintenance intensity of the drainage system can be effectively reduced, so that the reliability and stability of the drainage system are enhanced.

The application provides a method and device for treating wastewater by combining a suspended filler floating bed and a soil infiltration system, and the method comprises the following steps: S1, breeding wastewater is treated by the suspended filler floating bed after passing through a hydrolysis tank, and effluent is treated in a sedimentation tank, and wastewater of the suspended filler floating bed is returned to the suspended filler floating bed for secondary treatment; S2, wastewater of the sedimentation tank is returned to the hydrolysis tank; and S3, effluent of the sedimentation tank is introduced into a soil underground infiltration system. The system provided by the application is beneficial to further strengthening the effects of denitrification, phosphorus removal and removal of suspended solids, and solves the problems of low dissolved oxygen content of influent and wastewater in the system, which is not conducive to the growth of nitrifying bacteria, and low effective volume utilization rate. In the use process, the filler does not need to be replaced, and mechanical aeration equipment does not need to be added, and the system has the advantages of low investment cost, no need to add chemical agents for treatment, obvious effect, not easy to breed mosquitoes, simple operation and management, and beautification of the environment, and has remarkable ecological and economic benefits for promoting deep purification of breeding wastewater.

This invention provides a flue gas nitrogen oxide reduction catalyst and its preparation and processing methods, relating to the field of industrial catalysis technology. The flue gas nitrogen oxide reduction catalyst has two functional zones, A and B, arranged sequentially along the flue gas flow direction. Functional zone A is a porous structure located at the inlet end for intercepting dust in the flue gas; functional zone B is located downstream of functional zone A and is the main reaction zone for the catalytic reduction of nitrogen oxides. The flue gas nitrogen oxide reduction catalyst provided by this invention protects the catalytic activity of functional zone B by intercepting dust in functional zone A. This partitioned design synergistically solves the problems of clogging and poisoning, significantly extending the catalyst's lifespan.

The invention discloses a spraying structure for a devolatilization device, which comprises an outer pipe, a conveying pipe and a nozzle, the outer pipe is tightly connected with an input pipe of circulating hot water through an auxiliary pipe, and is used for receiving the supply of hot water; one end of the conveying pipe is firmly connected to the outer pipe, the other end of the conveying pipe extends into the kettle body and is tightly connected with the spray head, and a spraying opening of the spray head is arranged downwards; the outer pipes and the sprayers are arranged in two sets, each set of outer pipes is provided with one set of sprayers correspondingly connected with the outer pipes, and the upper set of sprayers and the lower set of sprayers are arranged in a staggered mode in the spatial layout.

This invention relates to the field of flood control manhole cover technology, and proposes an anti-clogging manhole cover for flood control emergency use in municipal engineering. The cover includes: a cover body with several vertically extending drainage windows; several flaps that open and close within the drainage windows, each flap having an upward-lifting portion. When the flap is open, the upward-lifting portion rotates to the top of the cover body and is tilted. Moving objects on the road press down on the flaps, causing them to close; a filter cover located below the upward-lifting portion, with an anti-clogging channel inside. When the flap is open, the upper part of the filter cover passes through the drainage windows and rotates to the top of the cover body, while the lower part of the filter cover is located inside the drainage windows or below the cover body; and an actuating element that drives the flaps to rotate and open. This technical solution solves the problem in the prior art where manhole covers in motor vehicle lanes cannot effectively participate in drainage during flood control emergencies, thus affecting traffic flow.

This invention relates to a crushing and screening system for lithium hexafluorophosphate crystals, belonging to the technical field of crushing and screening equipment for lithium hexafluorophosphate crystals. The invention includes a casing, a first-stage crushing mechanism, a second-stage crushing mechanism, a third-stage crushing mechanism, a first screen plate, a second screen plate, and a first guiding assembly. The casing has a feed inlet at the top and a discharge outlet at the bottom. The first, second, and third-stage crushing mechanisms are arranged sequentially from top to bottom within the casing, with the outlet of the previous crushing mechanism staggered from the inlet of the next crushing mechanism. The first screen plate guides the crystals from the outlet of the first-stage crushing mechanism into the second-stage crushing mechanism, and the second screen plate guides the crystals from the outlet of the second-stage crushing mechanism into the third-stage crushing mechanism. The first and second screen plates screen out crystals of acceptable particle size. The first guiding assembly has interconnected transverse and vertical material guiding channels, with the transverse material guiding channel extending below the first screen plate.

The invention belongs to the technical field of cosmetics, and particularly relates to an anti-aging repairing composition and a cosmetic. The anti-aging repairing composition comprises needle-like silica and a nucleic acid tetrahedron solution. According to the composition and the cosmetic, controlled skin injury is formed through the needle-like silica, skin pore blockage is relieved, natural stripping of aged cuticle is accelerated, microcirculation of skin cells below the cuticle is activated, the overall metabolic condition of epidermis is improved, a natural skin repairing mechanism is stimulated, and under the synergistic effect of tFNA, the skin can be effectively repaired. Synthesis of important construction substances such as collagen, elastin and hyaluronic acid is promoted, the skin barrier function is repaired, and the skin health state is improved. Therefore, various skin defects such as skin photoaging, roughness, relaxation, wrinkles, dryness, hyperpigmentation, sensitivity and angiotelectasis are remarkably improved.

The application discloses a kind of stator and vacuum pump, it is related to vacuum pump technical field, including stator main body and purging module, the stator main body inside is limited to the compression cavity for accommodating rotor, the purging module is set to the outer wall of the stator main body, and the purging module has gas inlet connector, the inside of the purging module is provided with inflow chamber, the inflow chamber and the compression cavity are communicated by blowing gas connector.The application is introduced into inflow chamber by setting blowing gas module, directly introduced into compression cavity by blowing gas connector, effectively relieve the gas reflux caused pipeline blockage, simplify the pipeline structure of gas path purging, to reduce the processing difficulty.

The utility model relates to the technical field of plate heat exchangers, and discloses a plate heat exchanger with a filter screen pipe, which comprises a shell I. A medium inlet pipe and a medium outlet pipe are arranged on the front side of the shell I. Flanges are fixedly mounted on the outer sides of the medium inlet pipe and the medium outlet pipe. The inner wall of the medium inlet pipe and the inner wall of the medium outlet pipe are slidably connected with a first-stage coarse filter pipe, a sliding groove is formed in the outer edge of the first-stage coarse filter pipe, a clamping groove is formed in the inner side of the flange, and a spring is arranged on the inner wall of the sliding groove. Through cooperative use of clamping blocks and clamping grooves, after filter screens of a first-stage coarse filter pipe, a second-stage filter pipe and a third-stage fine filter pipe are blocked by impurities or incrustation, a pressing plate is pressed downwards, so that the pressing plate applies downward pressing force to a sliding plate, and at the moment, the sliding plate downwards extrudes a spring to generate deformation shrinkage, so that the filter screens of the first-stage coarse filter pipe, the second-stage filter pipe and the third-stage fine filter pipe are blocked by the impurities or the incrustation; and through cooperation between the limiting block and the limiting groove, sliding of the sliding plate can be limited, and the sliding plate slides downwards.

The utility model discloses a wet-process granulating and discharging device, which relates to the technical field of granulating and comprises a support frame and a wet-process granulating machine body, the wet-process granulating machine body is mounted above the support frame, feeding ends are mounted on the left side and the right side of the upper surface of the wet-process granulating machine body, and a support frame is mounted above the wet-process granulating machine body; a discharging end is mounted below the wet-process granulator body, a stirring assembly is mounted on the transmission shaft, and a conveying pipe is mounted at the lower end of the discharging end; and a splicing arc-shaped assembly is mounted below the conveying pipe. According to the wet granulating and discharging device, the feeding ends are arranged on the left side and the right side of the wet granulating machine body, and the reciprocating motion of the conveying plate is utilized, so that materials uniformly enter the granulating machine from multiple positions, the problem of feeding and discharging blockage is effectively solved, the uniformity of the raw materials in the granulating process is ensured, the consistency of the granulating effect is improved, and the production efficiency is improved. The granularity difference of a final product is reduced, and the requirement of high-quality production is met.

This invention discloses a mixed-use (edible and ornamental) lake composite diverse wetland module and its construction method, relating to the field of wetland ecological engineering technology. It includes a primary purification unit located on the lake shoreline, a deep purification and resource production unit located in the open water area of ​​the lake, and a hydraulic connection system connecting the primary purification unit and the deep purification and resource production unit. This mixed-use (edible and ornamental) lake composite diverse wetland module and its construction method connects surface flow wetland units and horizontal subsurface flow wetland units in series to form a primary purification unit. This unit is then spatially combined and hydraulically connected with an aquatic vegetable-type floating island wetland constructed based on a bamboo frame, netting, vegetable rotation ponds, and supporting bamboo poles. A directional water flow path including an inlet area, a wedge-shaped distribution channel, and a collection pipe is also provided. This constructs a three-dimensional composite purification system integrating primary interception, deep purification, and resource production, achieving synergy between water purification efficiency and edible plant resource production.

The utility model discloses a single vane wheel stirs and sucks medicine pump, including motor, single vane wheel stirs and sucks medicine pump still includes: the suction stirring mechanism for sucking and stirring medicament, wherein, the suction stirring mechanism includes: vane wheel casing and rotatablely arranged vane wheel body in vane wheel casing inside, vane wheel body side surface with the inner wall of vane wheel casing is spaced apart and is arranged, still respectively set up with the liquid inlet for sucking the liquid medicine of the inner chamber intercommunication of it and the liquid outlet of flowing out to stir the liquid medicine on vane wheel casing. This single vane wheel stirs and sucks medicine pump when using, overcomes the vane wheel medicine pump vane wheel and the flow passage of prior art and is easy to be blocked, and the vane wheel of vane wheel medicine pump will be subjected to the problem of the scouring and abrasion of particle, and through a vane wheel realizes the suction and stirring effect of liquid medicine.

The application discloses a method for reducing flocculants in gold smelting liquid, and belongs to the technical field of water treatment and ore dressing and smelting. In the first step, the pH of the gold smelting liquid is adjusted to 5.5-8.5; in the second step, modified activated carbon is added into the gold smelting liquid at a dosage of 0.4-0.6 g / L, the temperature of the gold smelting liquid is adjusted to 35-45 DEG C, and adsorption is carried out for 4-6 h under stirring. The application solves the problem of flocculant enrichment in ore dressing and smelting water, realizes efficient removal of flocculants in ore dressing and smelting water, has good economic efficiency and environmental protection, and meets the actual application requirements of industry. The application provides a new technical scheme for removing flocculants in ore dressing and smelting water, is suitable for water treatment processes in gold ore dressing and smelting industries, and has a wide industrial application prospect.

The utility model discloses a plate shell heat exchanger for hydrogen production, including shell and fixedly arranged on the circumference lateral wall of shell a pair of branch leg, the lateral wall on one end of shell is respectively communicated fixedly provided with liquid inlet no.

This invention provides a centrifugal pump and its impeller. The impeller includes a front cover plate and a rear cover plate, with multiple blades disposed between the front and rear cover plates. All or a portion of the blades have pressure relief notches on their working surfaces, located at the trailing edges of the blades. The pressure relief notches in this application are equivalent to artificially creating a pressure relief channel on the outlet working surface side of the blades. At low flow rates, high-pressure fluid near the outlet of the blade working surface can leak a portion of the fluid to the working surface of adjacent blades in advance through the pressure relief notches. This controlled, localized, and premature backflow breaks the conditions for the formation of a large-scale, intense rotating stall cluster, releases localized high pressure, alleviates flow channel blockage, makes the flow relatively more stable, and significantly reduces the amplitude and frequency of pressure pulsations caused by rotating stall, thereby greatly reducing vibration and noise.

The utility model relates to the technical field of evaporators, in particular to a multi-effect mechanical vapor recompression (MVR) evaporator anti-blocking tube bundle structure of an integrated Roots compressor, which comprises a pipeline body, a fixing seat and a fixing screw, a mounting part is arranged on a bent tube part of the pipeline body, a stretching-in groove is arranged on the mounting part, a stretching-in part is arranged on the fixing seat, and the fixing screw is arranged in the stretching-in groove. The fixing base is installed on the installation part through a fixing screw so that the stretching-in part can stretch into the inner side of the bent pipe part through the stretching-in groove, and the first side face of the stretching-in part inclines towards the coming direction of fluid in the pipeline body. According to the anti-blocking tube bundle structure of the evaporator, the first side face of the stretching-in part of the fixing base is located on the inner side of the bent tube part and serves as a flow guide face for fluid on the inner side of the bent tube part, then the fluid on the inner side of the bent tube part flows towards the middle of the bent tube part along the first side face of the stretching-in part, and therefore the flow speed of fluid feed liquid passing through the bent tube part is increased; the problems that crystal deposition is prone to being generated on the inner side of the bent pipe part, and a pipeline body is blocked are solved.

The utility model belongs to the field of waste gas treatment equipment, and particularly relates to a welding waste gas treatment system and a filtering mechanism thereof, the filtering mechanism comprises a box body, a collecting mechanism is arranged at the bottom of an inner cavity of the box body, a filtering assembly is arranged at the upper part of the inner cavity of the box body, and an air inlet is formed in the side wall of the box body between the collecting mechanism and the filtering assembly; an exhaust port is formed above the filtering assembly; the filtering assembly comprises a horizontal rotating disc, a plurality of filter screens which are circumferentially and uniformly distributed around the center of the rotating disc are arranged on the rotating disc, and the rotating disc is connected with a rotation driving mechanism; and an air inlet cylinder is arranged above one filter screen and is connected with an air supply mechanism. According to the utility model, each filter screen can be washed in sequence to prevent the filter screens from being blocked; and when the filter screen is washed, other filter screens can work normally, shutdown is not needed, and the treatment efficiency is guaranteed.