19results about How to "Reduce removal" patented technology

This utility model discloses an eco-board based on single mortise and tenon joint. The eco-board includes sub-wood strips and mother-wood strips, and the transverse direction of the eco-board is spliced ​​using mortise and tenon joints, while the longitudinal direction is spliced ​​using toothed joints. Its advantages are as follows: Compared with double mortise and tenon joints, the eco-board of this utility model, using a single mortise and tenon joint, has higher process efficiency and better economy. The processing time for single mortise and tenon joints can be reduced by 30%-50%, making it particularly suitable for mass production and requiring lower equipment precision. Secondly, it reduces the grooving process, lowering labor and tooling costs. Furthermore, the single mortise and tenon joint reduces material removal, making it suitable for scenarios requiring weight reduction (such as hanging cabinets and movable furniture). Moreover, the single mortise and tenon joint is particularly suitable for thin boards, requiring no larger board thickness for support, and can be used stably in eco-boards with a thickness of less than 18mm, thus broadening its application range.

The present application relates to the technical field of feeding and dosing device, especially relates to an automatic feeding and dosing device for anti-blocking granular ammonia-nitrogen removing agent and a feeding method thereof. The automatic feeding and dosing device and the feeding method thereof are aimed at solving the technical problems that the labor intensity of workers is large, dust is harmful to human body, the continuity and uniformity of dosing cannot be guaranteed, and the saving of reagent is not conducive in the prior art. The present application provides an automatic feeding and dosing device for anti-blocking granular ammonia-nitrogen removing agent, which comprises a supporting column, a material bin, a lifting control device, a guide assembly, an outer dust cover, a rotary control assembly, a sealing cover plate, a limiting seat, a screen, a flexible knocking assembly, a power device, a spraying pipe, a nozzle and a discharging adjusting assembly. The present application adopts a crane to automatically feed the ammonia-nitrogen removing agent, ensures the continuity and uniformity of dosing of the ammonia-nitrogen removing agent, saves the amount of the ammonia-nitrogen removing agent, effectively suppresses dust dispersion through spraying, and reduces the harm to human body.

This invention discloses a method for the biological drying of sludge, comprising the following steps: baking biomass materials, mixing the resulting baked product with sludge, biochar materials, and a conditioner for biological drying, thereby completing the sludge drying process. In this invention, by biologically drying the mixture of baked product, sludge, biochar materials, and conditioner, not only can the self-generated heat within the system be used to effectively dewater the sludge in a very short time, but the bioavailability of the microbial carbon source can also be improved, effectively reducing the generation of polluting gases. This method can effectively reduce the emission of polluting gases while achieving rapid dewatering. It has advantages such as simple process, low treatment cost, low energy consumption, high drying efficiency, good dewatering effect, low polluting gas production, and low content of toxic and harmful components in the dried product. It can solve the problems of biomass resource waste and pollution, achieve sludge reduction and resource utilization, and has high returns and good application prospects.

The invention discloses a speech enhancement method based on a time sequence convolutional network, and the method comprises the steps: obtaining a data set, completing the preprocessing of the data, and generating a data pair for training a model; constructing a measurement standard of the system according to general industry knowledge rules and actual application scene requirements; constructing an encoder by using convolution short-time-distance Fourier transform, and using the encoder as a characteristic value of audio data and a model input item; a time sequence convolutional network TCN training model is introduced, and an encoder is decoded to obtain a voice enhancement processing result; according to the method, the effect of speech enhancement is analyzed according to a previously established measurement standard, and large-scale complex audio enhancement processing is quickly and effectively performed by introducing the time sequence convolutional network. The structure, the number of layers and parameters of the time sequence convolutional network can be learned and adjusted according to actual conditions, so that the model has flexibility and adaptability, the performance and the effect of the model are further improved, and stronger support is provided for realizing large-scale multi-type speech enhancement.

The invention discloses a sponge-based defluorination composite material as well as a preparation method and application thereof. The sponge-based defluorination composite material comprises sponge serving as a carrier and metal salt loaded on the sponge, the metal salt comprises iron metal salt, aluminum metal salt and lanthanum metal salt; the iron metal salt is ferric sulfate or ferric chloride, the aluminum metal salt is aluminum chloride, and the lanthanum metal salt is lanthanum chloride or lanthanum nitrate. Compared with other adsorption type defluorination materials, the sponge-based defluorination composite material disclosed by the invention is low in cost, convenient to use and capable of being repeatedly used for many times; meanwhile, the sponge-based defluorination composite material is high in defluorination efficiency and stable in performance, and has remarkable application advantages.

This utility model relates to the field of aerospace technology and discloses an integrated bolt cleaning and lubrication device, comprising: a conveying assembly, which includes a conveyor belt, a first drive unit, and a bolt mounting unit. The power output end of the first drive unit is connected to the conveyor belt for driving its movement. The bolt mounting unit is disposed on the conveyor belt and can fix the bolt head; a cleaning assembly and a lubrication assembly, which are arranged at intervals along a first direction. The cleaning assembly has a cleaning channel for bolts to pass through, and the lubrication assembly has a lubrication channel for bolts to pass through; and a waste liquid purging assembly, which is disposed between the cleaning assembly and the lubrication assembly for purging the cleaning liquid adhering to the bolts. The integrated bolt cleaning and lubrication device provided by this utility model can realize automated and integrated cleaning and lubrication operations, thereby solving the problems of high labor intensity, low efficiency, and health risks associated with manual bolt handling in the prior art.

The application provides a batch closed die forging device and batch preparation method for bowl head hanging plate, the die forging device comprises a pre-forging die and a final-forging die, the pre-forging die comprises a pre-forging upper die and a pre-forging lower die, a pre-forging cavity of the pre-forging die can pre-forging a plate blank in the pre-forging cavity into an integrated pre-forging plate with thin middle and thick sides; the final-forging die comprises a final-forging upper die and a final-forging lower die, when the final-forging upper die and the final-forging lower die are in a closed die state, a plurality of bowl head hanging plate forming cavities are formed between the final-forging upper die and the final-forging lower die, each bowl head hanging plate forming cavity is uniformly and evenly arranged along the length direction of the integrated pre-forging plate and is symmetrically arranged about the width center line of the integrated pre-forging plate. The application realizes the twice closed die forging process of "pre-forging integral shaping + final-forging cavity finishing" by using the pre-forging die and the final-forging die in sequence, can ensure the continuity of the metal forging limiting streamline, realizes the densification forming of the key stress position of the bowl head hanging plate, improves the mechanical properties of the bowl head hanging plate, and realizes the batch production of the bowl head hanging plate.

According to the red-mud-based ecological permeable concrete pavement structure and the construction technology thereof, a red-mud-based ecological permeable concrete pavement adopts a double-layer design, pores and the particle size of a bottom surface layer are larger than those of a surface layer, a continuous efficient permeable channel is formed, and the surface layer preliminarily infiltrates and filters accumulated water on the pavement and intercepts part of impurities; the bottom surface layer further provides an infiltration channel, so that rainwater rapidly infiltrates into the ground, surface runoff is greatly reduced, the problem of poor water permeability of a traditional pavement is solved, underground water supplementation is assisted, and urban inland inundation is relieved; meanwhile, the strong basicity characteristic of the red mud is ingeniously utilized in the pavement structure, when surface runoff containing pollutants sequentially passes through the surface layer and the bottom layer, the red mud-based material of the bottom layer can enable heavy metal ions in the runoff to be subjected to reactions such as precipitation in an alkaline environment, and the heavy metal ions are fixed in the pavement structure, so that deep purification of the pollutants is realized; pollution of rainwater to natural water is effectively reduced, and the water ecological environment is protected.

The utility model belongs to the technical field of sewage treatment, and particularly relates to a novel phosphorus removal air flotation machine which comprises an air flotation machine body, a mixing mechanism is arranged on the air flotation machine body, and the mixing mechanism comprises a mixing assembly and a supporting plate fixedly connected between the opposite side walls of the air flotation machine body, a rotating rod is rotatably connected to the supporting plate through a pair of first rotating holes, a group of stirring blades are fixedly connected to the rotating rod, a sliding rod is slidably connected to the supporting plate through a sliding hole, and an oval block is slidably connected to the sliding rod. The problems of poor reaction effect, influence on phosphorus removal efficiency and reduction of phosphorus removal effect due to the fact that the mixing time of an air flotation machine is short and a medicament cannot be guaranteed to be in full contact with sewage generally and the medicament and fed materials are not fully mixed are solved.

The invention discloses a grinding wheel dressing device for mechanical part grinding, the device is composed of a repairing structure and a repairing auxiliary structure, the repairing auxiliary structure is provided with a positioning clamp, a driving and driven gear transmission mechanism, an air pressure detection and positioning stalling assembly, a high-pressure air path and a steel emery dressing unit; the repairing structure comprises a descending driving assembly, a single-point diamond pen repairing assembly and a grinding fluid supply mechanism. According to the device, coordination actions of diamond pen feeding, adaptive holding body sealing, intermittent grinding fluid supply and continuous high-pressure airflow purging are achieved through single-power double-path synchronous output, the local blockage passivation area of a grinding wheel is recognized through an air pressure sensor, rapid positioning and rotation stopping are achieved, targeted dressing is completed through steel grit, and the steel grit can be recycled; two operation modes of local dressing and comprehensive shaping of the grinding wheel can be achieved, the removal amount of grinding wheel materials is greatly reduced, the service life of the grinding wheel is prolonged, the structure is simple, transmission is reliable, and the dressing efficiency is high.

The utility model relates to circulating device field especially relates to a numerical control lathe swarf liquid circulating device, including the recycling box and the circulating component, the inside installation of recycling box is used for the recycling recycling use of fully processing swarf liquid circulating component, and the circulating component includes the composite filter screen, storage bin, liquid outlet pipe, docking disc, filter ring, solenoid valve, connecting plate, recycling disc, charging frame, and the inside of recycling box is provided with recycling groove, and the inside symmetry of recycling groove is equipped with the composite filter screen, and the outer end corner of composite filter screen is equipped with the limiting bolt, and the composite filter screen is fixed with recycling box thread through limiting bolt, and the inside of recycling box is located composite filter screen one side and is provided with storage bin, and the inner wall symmetry of recycling groove is provided with multiple groups of guide grooves, the utility model discloses through adopting the composite filter screen to the multistage full filtration separation of swarf liquid, effectively screens out the swarf in cutting fluid, reduces the residual of metal scrap in recycling cutting fluid, guarantees the cleanness of recycling cutting fluid, improves the filtration effect.

The utility model discloses a numerical control machine tool guide rail with self -lubricating structure, the utility model relates to mechanical engineering technical field, the utility model, including: workstation, the inner wall sliding connection of workstation has sliding device, the outer wall fixed connection of sliding device has lubricating device, through setting the cooperation of sliding device and lubricating device, oil tank imports lubricating oil, and its bottom end connected conical pipe output end is conical, can accurate control lubricating oil flow, forms even and effective oil film on the surface of guide rail, reduces abrasion, and the discharge pipe of symmetric connection of the bottom end of sliding slot can discharge extra lubricating oil and impurity in time, and the gasket of inner wall contacts with the outer wall of runner, further optimizes the sliding process, and reduces the jam phenomenon, and the cleaning cotton can clean the guide rail when sliding on the workstation simultaneously. Cleaning cotton can adjust position through screw rod pin, and the runner is covered, can effectively remove the chip, dust and other impurities on the surface of guide rail, prevent its purpose from entering the sliding component.

This invention discloses a flexible adsorption transfer system and placement method for reducing DIC (Displacement Injection) defects on silicon wafers, relating to the field of flexible adsorption transfer technology. The system includes a transfer system internally configured to clean the suction cups. The cleaning mechanism includes several sets of lifting and drying units, a cleaning unit, and several sets of liquid replenishment units. Each lifting and drying unit includes a mounting frame with a rotating shaft rotatably mounted inside. A rotating rod is fixedly mounted on the surface of the rotating shaft. Through the lifting and drying units, a micro-asynchronous motor drives the shaft and small bevel gears, causing the shaft column meshing with the large bevel gears and the cleaning cloth on the support plate to rotate. This rotary cleaning method can perform multi-angle, dead-loop wiping of the bottom of the suction cups, effectively removing particles, wax residue, and other contaminants adhering to the flexible adsorption pads, thereby reducing silicon wafer backside defects caused by suction cup contamination at the source and improving silicon wafer yield.

The invention provides an atmosphere control system and method for titanium alloy fastener vacuum continuous solid solution equipment, and relates to the technical field of metal heat treatment. The control system comprises a heating chamber body, a feeding chamber, an outer door, a rotary inner door, an evacuation system, an inflation system, a detection system, a water tank, a liquid level meter and an inert gas source. A feeding chamber is arranged on the upper side of the front end of the heating chamber body, and the heating chamber body and the feeding chamber are isolated and sealed through a rotary inner door; a blanking port of the heating chamber body is immersed into water in the water tank to realize water sealing; the upper end of the feeding chamber is isolated and sealed with the atmosphere through an outer door; the evacuation system is communicated with the feeding chamber; the input end of the inflation system is connected with an inert gas source, and the output end of the inflation system is independently communicated with the feeding chamber and the heating chamber body. The detection system is used for detecting the water content and the oxygen content of the atmosphere in the heating chamber body. The device has the function of accurately controlling the oxygen content and the water content, and high-quality batch production of the titanium alloy fastener can be achieved easily.

The utility model belongs to the technical field of steel wire heat treatment, and particularly relates to a stainless steel wire heat treatment take-up device which comprises a take-up box, and a liquid injection opening is fixedly connected to the top of the inner side of the take-up box. A liquid outlet is fixedly connected to the top of the inner side of the take-up box; the liquid outlet and the liquid injection port are both provided with a wire collecting box in a penetrating mode. The bottom of the liquid injection port is fixedly connected with a circulating pipe; a bottom plate is fixedly connected to the inner side wall of the take-up box; a motor is fixedly connected to the bottom of the bottom plate; the output end of the motor is fixedly connected with a take-up column; an inlet is formed in the side wall of the take-up box; and by additionally arranging the circulating pipe, the stainless steel wire can be rapidly cooled before being wound, the conditions that the surface of the stainless steel wire is softened and the like when the stainless steel wire with the high temperature is wound are reduced, and subsequent further machining after the stainless steel wire is wound is facilitated.

A method for removing a low-dielectric-constant material layer includes: providing a wafer to be cleaned, the surface of which has a low-dielectric-constant material layer; dry etching the wafer using oxygen plasma to reduce the methyl content in the low-dielectric-constant material layer; performing a first isotropic etching on the wafer for a first duration using an etching solution of a first concentration; and performing a second isotropic etching on the wafer for a second duration using the etching solution of a second concentration; wherein the second concentration is less than the first concentration, and the second duration is less than the first duration. This method can quickly and effectively remove the low-dielectric-constant material layer from the wafer surface and significantly reduce the number of particles on the cleaned wafer surface, making the wafer suitable for reuse, thereby improving efficiency and reducing costs.

This invention relates to a chlorine-free green refining method for crude bismuth, belonging to the field of pyrometallurgical technology for non-ferrous metals. The process includes: oxygen-enriched ash blowing: removing arsenic and antimony from crude bismuth to a content of ≤0.08%; vacuum distillation: vacuum distilling the arsenic-antimony-removed crude bismuth to obtain volatile lead-bismuth-tellurium alloy and residual copper-tin-silver alloy; alkali removal of tellurium: adding caustic soda to the lead-bismuth-tellurium alloy under oxygen-enriched blast to obtain a lead-bismuth alloy and alkaline slag; preliminary lead removal through oxidation slag formation: blowing the lead-bismuth alloy into oxygen-enriched air while simultaneously adding slag-forming agents in batches to obtain bismuth-rich lead; continuous crystallization: continuously crystallizing the bismuth-rich lead to obtain refined bismuth with a purity greater than 99.99 wt% and a bismuth-based lead alloy. This invention employs a technical solution of "oxygen-enriched ash blowing – vacuum distillation – alkali removal of tellurium – preliminary lead removal through oxidation slag formation – continuous crystallization," forming a novel short-process, environmentally friendly refining technology to purify crude bismuth into refined bismuth.

The utility model discloses a defibering, screening and deslagging device for fiber slurry production, which relates to the technical field of fiber slurry production and comprises a stirring tank, a feeding hopper at the top of the stirring tank, a first rotating shaft arranged in the stirring tank, a stirring mechanism arranged on the first rotating shaft, a second rotating shaft arranged in the middle of the stirring tank and a defibering stirring rod arranged on the second rotating shaft. A first conveying pipe arranged at the lower end of the material storage box body extends to be connected with the input end of a first liquid pump, one end of a third conveying pipe connected with the output end of the first liquid pump extends to the position above the slag removal box body, multiple layers of sieve plates are arranged in the slag removal box body in parallel, and a plurality of sieve holes are formed in the sieve plates. The utility model provides a defibering, screening and deslagging device for producing fiber pulp, which can remove impurities in the pulp, fully defibering fibers and reducing the fiber agglomeration phenomenon through the synergistic effect of a multi-layer stirring mechanism and a defibering stirring rod, and efficiently remove the impurities in the pulp through the combined design of a multi-layer sieve plate and a steel wire brush.

The utility model discloses a reconstituted tobacco extract concentration device which comprises a vacuum membrane distillation device and a ceramic membrane device, and the ceramic membrane device comprises a storage tank, a ceramic membrane assembly and a first water pump. The discharge port of the storage tank and the inlet end of the first water pump, the outlet end of the first water pump and the feed port of the ceramic membrane assembly, and the trapped fluid discharge port of the ceramic membrane assembly and the return port of the storage tank are respectively connected through a pipeline; the vacuum membrane distillation device comprises a vacuum membrane distillation assembly, the inlet end of the feeding side of the vacuum membrane distillation assembly is connected with the outlet end of a second water pump through a pipeline, the inlet end of the second water pump is connected with an outlet of a heating flask through a pipeline, and an inlet of the heating flask is connected with a permeate discharging port of a ceramic membrane assembly through a pipeline. A scavenging port in the condensation side of the vacuum membrane distillation assembly is connected with a scavenging pipeline. The device disclosed by the utility model has the advantages that the loss of heat-sensitive substances in the tobacco extract liquor is reduced while macromolecular impurities in the tobacco extract liquor are removed.