177results about How to "Reduce clogging" patented technology

The application discloses a dilution pretreatment detector for ion chromatography detection of underground water and a method thereof, and relates to the technical field of water quality detection.The detector comprises a supporting shell, a dilution liquid storage cylinder is arranged in the supporting shell, an underground water storage cylinder is arranged in one side of the supporting shell, and a stirring dilution cylinder is connected to the bottom of the underground water storage cylinder and the dilution liquid storage cylinder.A series of structures are arranged, which can effectively avoid impurities from accumulating in the filter screen and the cylinder, greatly improve the impurity removal rate, provide high-purity samples for subsequent ion chromatography detection, reduce the risk of pipeline blockage and instrument damage, ensure that the sample concentration after dilution fully meets the ion chromatography detection requirements, significantly improve the accuracy and stability of the detection results, greatly improve the continuity and work efficiency of the underground water sample pretreatment, adapt to batch sample detection requirements, facilitate deep maintenance and component replacement, shorten equipment maintenance time, and reduce use and maintenance costs.

The application belongs to the technical field of water treatment, and discloses a water plant raw water turbidity fluctuation pretreatment method and system considering mountainous rainstorm confluence process, which can adaptively process the problems of raw water turbidity sudden rise, instantaneous flow impact and water quality rapid fluctuation in the mountainous rainstorm confluence process. The rainstorm confluence state is judged through the inlet water turbidity data, the high-turbidity water at the initial stage of rainstorm can be identified in time, and the system is prevented from being passively operated according to the fixed process. When the inlet water turbidity meets the initial rainstorm confluence condition, the initial high-turbidity raw water is diverted to the initial water collection tank and temporarily settled, which can reduce the direct entry of silt, suspended matter and sundries into the subsequent treatment unit, and reduce the risk of filter screen blockage, sudden increase of sedimentation load and system impact.

The utility model discloses a particle steel hot press forming device which comprises a working table, a stand, a hydraulic cylinder and a guide hopper, the stand is connected to the top end of the working table, the hydraulic cylinder is arranged on the stand, a telescopic rod is vertically downward, and the bottom end of the hydraulic cylinder is connected with a pressing block. The rotating mechanism is used for driving the rotating disc to rotate, one pressing groove is filled with materials when passing through the lower portion of the material guiding pipe, the pressing groove is pressed when passing through the lower portion of the hydraulic cylinder, after rotation continues, when the pulley rolls on the protruding block, the pulley jacks the top plate upwards, the top plate pushes out pressed particle steel, and continuous circulation is achieved. The particle steel hot-pressing efficiency is improved, during material filling, the driving mechanism continuously drives the material guide pipe to rotate, the probability and frequency of blockage are greatly reduced through rotation of the material guide pipe, the requirement for shutdown cleaning is reduced, and the continuous operation time and reliability of equipment are improved.

The invention relates to a food processing technology, and discloses a stress relaxation microchannel guided low-fat high-oxidation-stability nut preparation method. The method comprises the following steps: adjusting the content of nut meat in an aqueous solution containing an antioxidant to 8-12% (dry basis), and then carrying out phase change induced stress treatment to form a micro-fracture network communicated with the outer surface in the interior; then increasing the pressure to 3 to 10 MPa at the speed of 1.0 to 2.5 MPa / min, and maintaining the pressure, wherein the hot / trap is 1.5 to 1.8; and rapidly relieving pressure and discharging residual oil at (2.5-3.5) v1, and rapidly shaping by adopting high-energy drying for 2-10 minutes by adopting radio frequency / infrared / microwave vacuum and the like. According to the method, the degreasing efficiency and the size stabilization rate are improved under the low pressure intensity, surface residual oil is reduced, flavoring is promoted, and the storage oxidation stability is improved.

The utility model relates to soil remediation equipment technical field, specifically disclose a kind of heavy metal contaminated soil remediation device, the utility model includes: box;Slagging port is opened on the box;Setting is used for the crushing mechanism of soil crushing in the box;Inclined fixed mounting in the box is screened to the soil after crushing and is screened plate.This utility model a kind of heavy metal contaminated soil remediation device, when soil is repaired, by pusher assembly setting, on the one hand, the filter hole on the surface of screening plate can be brushed, reduce the blockage of filter hole;On the other hand, by pusher plate, push and sweep accumulated waste is automatically discharged outward through slagging port, so as to prevent the waste after screening from accumulating on the screening plate, affect the soil after crushing discharging, in addition, in the falling of broken soil, under the action of second guide plate, soil can be dispersed, and under the spray of water mist spray pipe, reagent can be more evenly sprayed on the surface of falling soil.

The utility model discloses a kind of cylinder water cooling structure of air compressor, it is related to cylinder water cooling structure technical field, including base and air compressor main body, the top of base is fixedly connected with the bottom end of air compressor main body, the top of air compressor main body is fixedly connected with cylinder body proper. The utility model can filter out the impurity in cooling water by water cooling circulation mechanism cooperation filter screen, and take away the heat on cylinder body proper by cooling water circulation flow, play the effect of cooling cooling;Precise addition of scale inhibitor can be driven into transparent water tank by scale inhibition adding mechanism, mixed with cooling water, so as to inhibit the formation of scale, avoid scale to the flow and cold and hot exchange efficiency of cooling water Cause interference;By poking cleaning mechanism, the scale inhibitor added can be poked and mixed with cooling water quickly, ensure that scale inhibitor is evenly distributed in cooling water, while the impurities filtered on filter screen are cleaned, reduce the possibility of blockage, guarantee water circulation flow effect.

The application relates to the technical field of building materials, in particular to a building material garbage recycling resource reusing equipment, which comprises a rack in a rectangular structure, a shell part arranged at the upper end of the rack, a roller rotatably connected in the shell part, a plurality of plate hammers equidistantly installed at the annular end of the roller, a plurality of auxiliary knives equidistantly arranged at the outward end of the plate hammers, a filter part installed in the shell part, a plurality of cutter groups equidistantly installed at the upper end of the filter part, wherein the cutter group comprises a plurality of crushing knives, and the crushing knives and the auxiliary knives are alternately arranged, a counter-hitting part arranged in the shell part, and a driving part installed at the upper end of the rack and connected with the roller. The design realizes the combination of crushing and screening of the building garbage, timely crushing of the residual building garbage after filtering, effectively reduces the probability of blockage and the like, improves the working efficiency, and effectively guarantees the recycling effect and quality of the building garbage.

The utility model discloses a fish breeding feeding device belongs to the field of feeding device, including the storage bucket and the assembly in the anti -blocking structure of storage bucket inside, and set up in the anti -block structure of storage bucket below, the anti -blocking structure includes fixed mounting in the servo motor of storage bucket top surface and the fixed link of fixed link in servo motor output and the fixed rod that penetrates storage bucket top and bottom, and three U type rods that circumferential array distribution in fixed rod surface, the surface fixed connection of U type rod is close to the rectangular plate of storage bucket inner bottom wall. The utility model discloses through the setting of anti -blocking, opens servo motor and drives fixed link rotation, drives U type rod and rectangular plate synchronous rotation in storage bucket, when U type rod is driven by fixed link can scatter the agglomerated feed in the barrel, and rectangular plate slides along the barrel bottom, can drive the feed of storage bucket bottom, and also can be through the rotation control of discharge port opening and closing, cooperates the reduction of feed and is stirred and is broken, and does not need manual stirring when discharging.

The present application relates to waste gas treatment technical field, specifically to a kind of acrylic resin waste gas treatment filter equipment, including main body, the main body inside is equipped with purification cavity, the main body circumferential outer wall is fixedly connected with shunt pipe, the shunt pipe bottom is equipped with several air pipes, the air pipe bottom end is penetrated to the inside of purification cavity;The inside of the purification cavity is provided with purification device, the purification device includes rotation installation in the center position of the inside bottom of purification cavity drive shaft, the inside of the purification cavity is located at the top position of drive shaft and is provided with limit frame, the center position of the limit frame bottom is penetrated and is equipped with docking interface.This application is through gas distribution plate, push plate and filter assembly linkage, to establish gas-liquid mixing neutralization system, improve the neutralization of acidic substances and the absorption efficiency of soluble VOCs, reduce the subsequent pollutant load, push plate, filter assembly and other collaborative impurities, clean filter screen, prevent secondary pollution, prolong the service life of filter material.

The embodiment of the present application provides an odor isolation valve, a drain pipe and an air conditioner. The odor isolation valve comprises: a shell, the shell is provided with an inlet and an outlet oppositely, the inlet and the outlet are used for communicating with the drain pipe of the air conditioner; a partition plate, the partition plate is fixedly arranged in the shell, and the partition plate is located between the inlet and the outlet, a tapered communication groove is arranged on one side of the partition plate close to the inlet, the communication groove communicates with the inlet and the outlet; and a tapered floating element, the floating element is movably connected in the communication groove, so as to realize the switching of the communication groove between the open state and the closed state; wherein, in the closed state, the floating element and the communication groove have an included angle. In the embodiment of the present application, by making the floating element a tapered floating element, the communication groove a tapered communication groove, and making the floating element and the communication groove have an included angle in the closed state, the drainage of the odor isolation valve is simpler, and the user experience is improved.

The utility model discloses a sewage treatment device, including the main part, the upper portion of main part is provided with the apron, the upper surface of apron is provided with motor, the side of main part upper end is provided with liquid inlet cylinder, liquid inlet cylinder is fixedly connected with main part through the connecting ring, the upper end of liquid inlet cylinder is provided with the connecting pipe, the other side of main part upper end is provided with secondary liquid inlet pipe, the side of main part lower extreme is provided with the collecting pipe, the other side of main part lower extreme is provided with the drain pipe, and the front end face of main part is provided with neutralization liquid bin. The utility model's advantage lies in: utilize U type groove, reduce the flow rate of sewage, then utilize biological membrane, increased the contact time of sewage and biological membrane, improved the purification effect of biological membrane, utilizes the activated carbon adsorption stick of setting of U type groove both ends and the activated carbon adsorption net of setting below, can effectively absorb the peculiar smell of sewage generation and the harmful substance in sewage, improved the purification effect of device.

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.

The utility model discloses a combined spliced graphitization furnace waste gas treatment device relates to graphitization furnace waste gas treatment device technical field, the utility model discloses a bottom plate is installed the filter jar at the top of bottom plate, the water tank is installed at the top of bottom plate, the top fixedly connected with exhaust pipe of water tank. The utility model discloses a filter part, specifically when the waste gas that enters the inside of filter jar is primarily filtered, the rotation of pivot one will drive the rotation of vibrating piece one, and the convex block on vibrating piece one will contact with the convex block on vibrating piece two when vibrating piece one rotates, makes filter plate slide on guide rod, and makes spring contract, when the convex block on vibrating piece one and vibrating piece two no longer contact, spring drives filter plate reset, to this realizes the vibration effect of filter plate, reduces the dust in waste gas and adheres the situation on filter plate, has promoted the passability of filter plate, has reduced the jam problem that filter plate appeared because of dust adhesion, has guaranteed the filtration effect.

The utility model discloses a river water condenser and ship, this river water condenser includes the casing, is equipped with circulating water import and circulating water export on the casing, and circulating water import and circulating water export all are linked to the shell inner chamber, and the casing both ends are connected with front end cover and tail end cover respectively, and the water inlet and water outlet are in parallelly arranged on the front end cover, and the cooling pipe is equipped in the casing, and the cooling pipe includes cooling inlet pipe and cooling outlet pipe, and the cooling inlet pipe is linked to the water inlet, and the cooling outlet pipe is linked to the water outlet, and the tail end cover is equipped with the self -cleaning mechanism, adopts the river water condenser of the utility model, and heat exchange effect is good, and the pipeline is few and is long in service life.

The utility model provides a kind of anti-clogging's volume selling coffee machine grinding assembly, it is related to volume selling coffee machine grinding assembly field, and it includes: cutter head mechanism, the cutter head mechanism includes grinding frame, fixed flat cutter blade, dynamic flat cutter blade and driving motor, the cutter head mechanism top is provided with anti-blocking mechanism, the anti-blocking mechanism includes connecting rod, rotating rod and soft hair brush, the top of the cutter head mechanism is provided with junction mechanism, the junction mechanism includes fixed frame, junction slot, positioning slot, stabilizing mouth, groove, quick release shell, positioning plate and stabilizing rubber block.The utility model, dynamic flat cutter blade rotation drives connecting rod to rotate, connecting rod rotation drives rotating rod to rotate, rotating rod rotation drives soft hair brush to stir coffee beans, when coffee beans are blocked, the coffee beans of jamming are dredged, reduce the phenomenon that coffee beans are jammed in junction, increase the anti-clogging effect of device.

This invention relates to the field of low-voltage distribution cabinet technology and discloses a movable low-voltage distribution cabinet, including a square cabinet. A threaded rod is slidably connected inside the square cabinet, a connecting plate is mounted on the threaded rod, and pulleys are mounted on the connecting plate. An air intake plate is also connected inside the square cabinet, and a steel brush for cleaning the air intake plate is also installed inside the square cabinet. An internal threaded sleeve is rotatably connected inside the square cabinet, and a synchronous belt is connected to the internal threaded sleeve. The internal threaded sleeve drives the synchronous belt to rotate, and an L-shaped block is mounted on the synchronous belt to drive the steel brush to slide. This invention uses the threaded rod to drive the connecting plate and pulleys to slide inwards into the square cabinet, thereby supporting the bottom of the square cabinet on the ground and reducing pulley wear. The steel brush contacts the air intake plate, cleaning the dust on the air intake plate, thus achieving self-cleaning of the low-voltage distribution cabinet and facilitating cleaning and maintenance.

This utility model discloses a drying device for compound prebiotic raw materials, including a box body. An atomizing nozzle is located at the top of the inner side of the box body. Below the atomizing nozzle is an annular pipe assembly, which includes annular pipes interconnected. The top side of each annular pipe has several air outlets for conveying hot air. Below the annular pipe assembly is an air supply pipe, and the end of the air supply pipe has a vent seat. The top of the vent seat has a fixed seat that can rotate relative to the vent seat and is located at the center of the annular pipe enclosure. This utility model has the advantages of reducing the density of atomized particles remaining in the same place after drying by rotating the annular pipe, thereby reducing the accumulation of atomized particles and the risk of clogging. Furthermore, after production, the atomized particles can be shaken off by rotating the annular pipe in both directions, reducing clogging, cleaning difficulty, and cleaning requirements.

This utility model relates to the field of cotton yarn production technology and discloses an anti-clogging feeding device for a cotton yarn production machine, including a lifting support and an anti-clogging feeding mechanism. The lifting support is driven by a servo screw linear module to lift and lower the vacuum suction tube and the take-up mask. The anti-clogging feeding mechanism includes a feeding box, a feeding rod, an anti-clogging rod, and a driving device. The feeding rod and the anti-clogging rod are rotatably mounted inside the feeding box, and the driving device is used to drive the feeding rod and the anti-clogging rod to rotate. The feeding box is connected to the take-up mask and is used to store the cotton to be fed. The feeding rod is used to push the cotton below the feeding box into the feeding box. The anti-clogging rod is used to prevent the cotton from clogging the take-up mask and the vacuum suction tube during the feeding process. The feeding rod and the anti-clogging rod are designed with oppositely rotating feeding rods and pear-shaped blades to effectively prevent cotton clogging and distribute it evenly. This effectively solves the clogging problem in the cotton feeding process, improves feeding accuracy and efficiency, and reduces energy consumption and maintenance costs.

This utility model discloses an anti-clogging feed inlet mechanism for feed processing, comprising a mounting frame. The mechanism is characterized by: a feed cylinder fixedly mounted inside the mounting frame; a stirring mechanism inside the feed cylinder; a feed pipe mounted on the lower end face of the feed cylinder; an anti-clogging mechanism on the inner side of the feed pipe; the anti-clogging mechanism comprising a threaded rod; a threaded sleeve fitted on the outer surface of the threaded rod; multiple dispersing rods evenly mounted on the outer surface of the threaded sleeve; an annular scraper on the outer side of the threaded sleeve; and multiple inclined grooves evenly arranged on the inner wall of the feed pipe. The dispersing rods penetrate the annular scraper and are engaged within the inclined grooves. The advantages of this utility model are: it can reduce feed blockage, improve feed dispensing efficiency, and simultaneously scrape away feed adhering to the inner wall of the feed pipe, preventing some feed material from remaining on the inner wall of the feed pipe.

The utility model discloses an aluminum foil punch press oil receiving device relates to aluminum foil press rolling technical field, including oil receiving port, the oil receiving port lower extreme fixed mounting has the filter casing, is equipped with the positioning hole in filter casing both sides, is equipped with the movable chute on filter casing, filter casing one side fixed mounting has the cleaning mechanism, the cleaning mechanism includes the mechanism casing of fixed mounting in filter casing one side, the movable axle is rotatably installed in mechanism casing, fixed mounting has the cleaning brush of movable axle, is installed in filter casing and has the filter mechanism, the cleaning mechanism still includes the motor of fixed mounting in mechanism casing one end, movable axle tip fixed mounting has the pinion, is equipped with two groups of movable holes in mechanism casing both sides. This aluminum foil punch press oil receiving device, through the cooperation of cleaning mechanism and filter mechanism, can clean the filter screen in the filtering process, reduces the situation of the occurrence of the blockage.

This application relates to the technical field of material processing and provides a rapid cooling and kneading device, which includes a housing, a rapid cooling unit disposed above the housing, and a kneading unit disposed below the housing. The rapid cooling unit and the kneading unit are connected by a connecting pipe, which is located outside the housing. An insulation component is provided outside the connecting pipe, including an insulation sleeve covering the connecting pipe, with an insulation cavity between the insulation sleeve and the connecting pipe. This application provides an insulation component outside the connecting pipe to reduce the impact of external temperature during the transport of the supercooled liquid, ensuring the normal formation of subsequent crystals and improving product quality stability. Before use, a heat medium is introduced into the insulation cavity to melt the crystals located in the connecting pipe, reducing the possibility of pipe blockage and ensuring continuous production. It also reduces equipment maintenance costs and downtime caused by pipe blockage, improving equipment lifespan and production efficiency.

The utility model belongs to the technical field of flood control and drainage equipment, specifically relates to an ecological flood control and drainage filter device, including the pool body, the pool body is fixedly connected with the water inlet, it further includes: pre -filtering mechanism, pre -filtering mechanism includes the casing fixedly connected on the pool body inner wall, the inside rotatory mounting of casing has the rubbing -together subassembly, the rubbing -together subassembly is close to the one end of water inlet and is provided with the inclined plate, the inclined plate is rotatory mounting and has the intercepting harrow, the intercepting harrow is close to the side of water inlet and is located the end of water inlet, the below of rubbing -together subassembly is provided with the conveying assembly. The utility model can move the suspended solids in the water at the water inlet to the inclined plate by the intercepting harrow, the rubbing -together subassembly is smashed to the suspended solids, then moves the suspended solids after the rubbing -together to the outside of pool body by conveying assembly, reduces the situation of suspended solids blockage, and the intercepting harrow is smaller to the hindrance of water flow, improves the convenience of filtration.

The application discloses a slurry sieving device for batteries, which comprises a stirring mechanism, a screening mechanism and a storage pool. The stirring mechanism is used for stirring the slurry, the screening mechanism is arranged below the stirring mechanism, and the storage pool is arranged below the screening mechanism. The screening mechanism comprises a screening box, a first-stage sieve plate, a first-stage ultrasonic assembly and a vibration assembly. The screening box is connected with a discharge port of the stirring mechanism. One end of the first-stage sieve plate is hinged to an inner wall of the screening box. The first-stage ultrasonic assembly is arranged at the bottom side of the first-stage sieve plate and is used for ultrasonic oscillation of the slurry adhered to the first-stage sieve plate. The vibration assembly is arranged below the first-stage sieve plate and a vibration end of the vibration assembly is connected with the first-stage sieve plate and is used for driving the first-stage sieve plate to vibrate. Through cooperation of the first-stage sieve plate, the first-stage ultrasonic assembly and the vibration assembly in the screening mechanism, the slurry can be filtered, and the first-stage sieve plate can be prevented from being blocked by the slurry as much as possible, so that the efficiency and effect of slurry filtration are affected.

This utility model discloses a quick-fixing device for vibrating screen pressure bars, including a main body, an installation mechanism, and an adjustment component. The installation mechanism includes a screen, an installation bar, a support frame, a fixing component, and a threaded sleeve. The adjustment component includes a spring, a pushing component, and a connecting component. With the coordinated action of these mechanisms, the quick-fixing function of this device allows operators to complete the installation and removal of the pressure bars in a short time, avoiding cumbersome steps and significantly reducing equipment downtime, thus improving production efficiency. In addition, this device effectively vibrates and disperses the material on the screen by hammering the screen, especially fine particles or wet materials adhering to the screen. This reduces material clogging of the screen and improves screening efficiency.

The application belongs to the technical field of medical devices and relates to a pipeline for intestinal flow transfer, which comprises a main pipe body, a drainage pipe, a flushing pipe and an elastic telescopic capsule. The main pipe body is internally provided with a drainage channel, a flushing channel and a liquid filling channel arranged along the length direction thereof. The drainage pipe is in communication with one end of the drainage channel, the flushing pipe is in communication with one end of the flushing channel, the elastic telescopic capsule is arranged on the outer wall of the main pipe and is in communication with one end of the liquid filling channel. The drainage pipe comprises an inner pipe and an outer pipe which are coaxially and spacedly arranged, and the inner pipe is in communication with the drainage channel. A plurality of first drainage holes are arranged on the pipe wall of the outer pipe, a plurality of second drainage holes are arranged on the pipe wall of the inner pipe, and the first drainage holes and the second drainage holes are arranged in a staggered manner along the axial direction and / or the circumferential direction of the drainage pipe. The scheme of the application can effectively reduce the probability of blockage and improve the stability and continuity of intestinal negative pressure drainage.

The application relates to a waterproof and drainage structure of a basement of building decoration, which comprises a cement base layer, a drainage groove is formed in the upper surface of the cement base layer, a drainage pipe is arranged through the cement base layer, a waterproof plate is arranged on the upper surface of the cement base layer, a plurality of water seepage grooves are formed in the upper surface of the waterproof plate, a basement bottom plate is arranged on the upper surface of the waterproof plate, a ladder groove is formed in the upper surface of the basement bottom plate, a drainage cover is arranged on the ladder groove, a plurality of drainage holes are formed through the upper surface of the drainage cover, a filter assembly is arranged in the drainage groove, the filter assembly comprises a supporting plate, a plug-in block and a filter box, accumulated water on the basement bottom plate enters the drainage groove through the drainage holes, the drainage holes filter the impurities with large volumes in the accumulated water, the waterproof plate effectively prevents water seepage, water flows into the drainage groove through the water seepage grooves, the water in the drainage groove is filtered by the filter box and then downwardly discharged into the drainage pipe, the probability that the impurities in the water block the drainage pipe is reduced, and the basement can be normally drained.

The utility model discloses a modularization coal slime high -efficient separation system, it includes base frame, support platform, fixed plate, mounting bracket, separation subassembly and adjusting mechanism. Through the rotation operation handle drive transmission cover rotation, cooperation drive arm and locking pin realize the quick assembly disassembly of fixed plate and base frame, and adjusting mechanism utilizes hydraulic transmission to realize the height adjustment of separation subassembly, and buffer spring reduces the operation impact. The shunt plate optimizes coal slime flow path, and the guide cylinder and support column enhance stability. The present application can realize modularization design, improve equipment maintenance convenience and operating efficiency, have higher practical value and popularization prospect.

A water conservancy project sand retaining dam, comprising sand retaining dams respectively arranged at multiple water inlets of a reservoir, a water retaining dam arranged on the reservoir, and a sand collecting well arranged on a downstream side of the water retaining dam; the multiple sand retaining dams on the same side of the reservoir are connected in series through sand discharge channels or sand discharge holes, and the terminal sand retaining dam is connected to the sand collecting well through a sand discharge channel or a sand discharge hole; the water conservancy project sand retaining dam further comprises a diversion tunnel, which connects the reservoir and a river channel on the downstream side of the water retaining dam. A construction method of the water conservancy project sand retaining dam comprises the following steps: step S1, selecting an import and export position of the diversion tunnel and constructing the diversion tunnel; step S2, constructing the water retaining dam when the diversion tunnel is in flow; step S3, constructing the sand retaining dams at the multiple water inlets of the reservoir in dry season by using the flow of the diversion tunnel; step S4, constructing the sand discharge channels or sand discharge holes between the adjacent sand retaining dams and the sand discharge channels or sand discharge holes between the terminal sand retaining dam and the sand collecting well; and step S5, constructing the sand collecting well.

The application provides a saw blade with staggered saw teeth, a saw blade production process and equipment, and relates to the technical field of composite material cutting processing. The saw blade with staggered saw teeth comprises a circular saw body, a plurality of first saw tooth portions and a plurality of second saw tooth portions are staggered along the circumferential direction on the outer periphery of the circular saw body, the first saw tooth portions and the second saw tooth portions are equal in number and are arranged in sequence with intervals, the first saw tooth portions and the second saw tooth portions are staggered with each other, so that staggered cutting structures are formed between adjacent different types of saw teeth. The structure is beneficial to dispersing cutting force, reducing the load of a single saw tooth, improving the stability and durability of the saw blade, and facilitating the fracture and discharge of chips, thereby improving the cutting efficiency and processing quality.

This invention provides a powder tanker unloading system, including a temporary storage tank. The upper part of the temporary storage tank is connected to a feed hose, and the upper end of the temporary storage tank is connected to a filter shell. The filter shell has an exhaust port connected outwards, and a dust filter element is installed inside the filter shell. The lower end of the temporary storage tank is connected downwards to a discharge pipe. A unloading section is located at the lower end of the powder tanker. A discharge pipe, detachably connected to the free end of the feed hose, is located at the bottom of the unloading section. An air injection pipe is arranged around the unloading section. The discharge pipe has a strip-shaped feed inlet extending along its length within the unloading section. Multiple high-pressure air blowing pipes, extending into the unloading section and facing the strip-shaped feed inlet, are arranged inwards from the air injection pipe. The free end of each high-pressure air blowing pipe is open and inclined towards the sealing plug. This invention utilizes high-speed airflow to propel the powder quickly unloading, eliminating the need to maintain a high-pressure environment inside the tank, resulting in lower unloading energy consumption and greater safety.