1471 results about "Helical blade" patented technology

The present application provides a kind of active helical pushing type gap straw cleaning wheel for straw returning, including active blade rotating shaft, right helical gap blade group and left helical gap blade group, and gap blade group includes multiple helical gap blades.The intersection of right helical gap blade and left helical gap blade is fixed together, and symmetric to each other.Gap blade group is fixed with active blade rotating shaft, and helical blade contacts soil during operation, and pushes straw on soil to both sides, and the size of helical gap blade outer diameter and the rotating speed of active blade rotating shaft are changed to improve the returning efficiency of straw.The gap depth of helical gap blade is consistent and staggered, to improve the quality of sowing belt straw cleaning, form a more clean sowing belt, and the soil driven by blade can flow out of the gap to reduce the amount of soil.The present application efficiently cleans the straw on sowing belt under the premise of minimizing the amount of soil, improves the quality of no-tillage seeding, and is beneficial to crop yield increase.

The utility model relates to the technical field of powder conveying, and discloses a powder food closed conveying device, which comprises a powder conveying cylinder and a support frame, and is characterized in that the outer side of the powder conveying cylinder is fixedly connected with a feed port, the top of the feed port is fixedly connected with a corrugated pipe I, the top of the corrugated pipe I is fixedly connected with a feed hopper, and the top of the corrugated pipe I is fixedly connected with a discharge port. A shaking assembly is arranged on the outer side of the feeding hopper, a discharging adjusting assembly is installed on the outer side of the powder conveying barrel, a motor is fixedly connected to the outer side of the powder conveying barrel, a transmission rod is fixedly connected to the output end of the motor, and spiral blades are fixedly connected to the outer side of the transmission rod. According to the powder conveying device, the connecting rod is driven by the driving motor to rotate, then the first bevel gear is driven to rotate, the second bevel gear, the rotating rod and the incomplete gear are made to rotate, the incomplete gear is meshed with the two racks on the inner wall of the moving ring, the feeding hopper is driven to move back and forth, powder caking and blocking are prevented, and the powder conveying efficiency and stability are improved.

The present application is suitable for pile foundation positioning technical field, provide a kind of pile foundation positioning device, including base, the mounting bracket is fixed on the base, the base is provided with avoiding hole, further include: guide sliding block, main shaft, helical blade, mounting plate, guide shaft, mounting block, drive assembly, reciprocating mechanism, second transmission assembly and disengaging mechanism.Reciprocating mechanism is driven mounting block to reciprocate up and down on guide shaft by the way of guide sliding block moves in guide chute, further make main shaft and helical blade reciprocate up and down while moving down, it is convenient to discharge the soil drilled by helical blade, improve the efficiency of pit positioning, when main shaft is contacted with rock, disengaging mechanism removes the transmission connection of main shaft and first motor and stops mounting block to reciprocate up and down on guide shaft, make mounting block move upwards along guide shaft, main shaft has no downward thrust at this time, to avoid the instant collision of helical blade and rock when main shaft is contacted with rock.

The utility model discloses a magnetic suction lining and double-medium energy-saving ore grinding system, which comprises an ore feeding port, an overflow type mill cylinder, a magnetic suction lining, double grinding media, a hollow shaft neck and a reverse spiral blade, the whole magnetic suction lining has magnetism and is tightly attached to the overflow type mill cylinder by means of magnetic force; double grinding media are arranged in the overflow type mill cylinder and are used for grinding minerals; a hollow shaft neck is arranged at one end part of the overflow type mill cylinder body and is used for discharging mineral products; an ore feeding opening is formed in the other end part of the overflow type mill cylinder body and is used for guiding a sand setting product of the hydraulic classification cyclone to enter the overflow type mill cylinder body; reverse spiral blades are arranged on the hollow shaft neck, and the rotating direction of the blades in the ore grinding operation is opposite to the rotating direction of the overflow type mill barrel. Through the multi-layer and multi-link fine design, the whole ore grinding process is more efficient and accurate, and the utilization rate and the production efficiency of mineral resources are greatly improved.

The invention relates to biodegradable high polymer material injection processing equipment which comprises a base, a feeding pipe is arranged at the top of the base, the feeding end of the feeding pipe is connected with a feeding hopper and a feeding driving part, an inner pipe is arranged in the feeding pipe, and the outer wall of the inner pipe is slidably attached to the inner wall of the feeding pipe; ramming blades of a spiral blade structure are arranged on the inner wall of the inner pipe, a splitter plate is arranged at the output end of the feeding pipe, the side, away from the feeding pipe, of the splitter plate is connected with a splitting heater, a plurality of splitting pipes are arranged in the splitting heater, heaters are arranged in adjacent gaps of the splitting pipes, and wrapping heat conduction structures are arranged between the heaters and the splitting pipes; one side, far away from the feeding pipe, of the shunting heater is connected with an opening and closing controller, and the opening and closing controller is connected with an injection head. The problems that a heating device in a feeding mechanism of some existing injection processing equipment is not reasonable enough, heat loss is large easily, raw materials are heated unevenly, and the forming quality is affected are solved.

Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

Disclosed are various embodiments of an auger-style treatment tank equipped with instrumentation. In one embodiment, an auger treatment tank includes an auger configured to rotate within treatment liquid in the auger treatment tank. The auger includes an auger shaft and at least one auger flight coupled to and helically disposed about the auger shaft. The auger treatment tank also includes one or more sensors configured to provide data directly or indirectly indicating a torque transmitted to the auger to effect rotation.

The invention discloses a gas mixing and uniformizing device for hydrogen fluoride gas phase etching, which comprises a device body, the device body internally comprises a first-stage mixing cavity, a second-stage mixing cavity, a third-stage mixing cavity and a reaction cavity which are sequentially communicated, the first-stage mixing cavity is arranged at the top of the device, and three groups of gas inlet pipelines are respectively arranged outside the device and are communicated with the first-stage mixing cavity; a plurality of groups of spiral blades which are arranged in an annular array are arranged in the second-stage mixing cavity, an annular hole partition plate is arranged at the communication part of the third-stage mixing cavity and the second-stage mixing cavity, a porous partition plate is arranged between the third-stage mixing cavity and the reaction cavity, and flow guide holes which are communicated up and down are formed in the annular hole partition plate and the porous partition plate; a manual sample inlet and a manipulator sample inlet are respectively arranged in front of and behind the reaction cavity, and an exhaust port is arranged at the bottom of the reaction cavity. The method has the advantages that the efficient mixing and uniform distribution of the ethanol steam, the hydrogen fluoride gas and the carrier gas can be realized, and the stability and the etching quality of the etching process are improved.

An anti-bouncing-sticking high-stability drill bit for drilling. The drill bit comprises: a drill bit body (1), cutting teeth (3), gauge teeth (4) and a plurality of blades (20), wherein the blades (20) are arranged on the drill bit body (1); each of the blades (20) has a main cutting portion and a gauge portion distributed in a direction from the center of the drill bit to the outside; the cutting teeth (3) are mounted on the main cutting portions; and the gauge teeth (4) are mounted on the gauge portions. The plurality of blades (20) comprise at least two helical blades (2); and in the helical blades (2), a helix angle β is formed between a line connecting a gauge point (51) of the main cutting portion to a gauge end point (61) of the gauge portion and a plane perpendicular to the axis of the drill bit, and satisfies 15°≤β≤60°. The technical problems of poor borehole trajectory quality and difficulty in ensuring wellbore wall quality which are caused by poor stability of the drill bit during the drilling process of the drill bit are solved.

The invention discloses uniform-distribution movable concrete pipe production grouting equipment which comprises a conveying box, stirring rods are rotationally arranged on the front side and the rear side of an inner cavity of the conveying box through driving mechanisms correspondingly, spiral blades are fixedly connected to the surfaces of the stirring rods, and a plurality of stirring blades are fixedly connected to the surfaces of the stirring rods; a feeding port is formed in one end of the top of the conveying box, and the other end of the bottom of the conveying box vertically communicates with a discharging pipe. According to the movable concrete pipe production grouting equipment with the uniform material distribution function, through guiding communication of the transverse pipe, collected dust can be conveyed into an inner cavity of a dust removal cloth bag, then the dust is collected in a centralized mode, airflow is discharged through an exhaust window, the dust is collected, and the device is more environmentally friendly; and the body protection of workers around the device is improved.

The invention relates to the technical field of plate heat exchangers, in particular to an energy-saving self-cleaning plate heat exchanger which comprises a plate heat exchanger body, four parallel connecting pipes are arranged in the plate heat exchanger body, and a driving mechanism is fixedly mounted on the outer side of one end of each connecting pipe. The working end of the driving mechanism is connected with a rotating rod and a connecting shell, the connecting shell is located in the connecting pipe and is rotationally connected with the connecting pipe in a sealed mode, the rotating rod penetrates through the waterproof assembly and then extends into the connecting pipe, and the section, located in the connecting pipe, of the side wall of the rotating rod is fixedly connected with a spiral blade. Through the design of the spiral blades and the flow dividing rods, stirring turbulence of fluid during conveying is increased, the possibility of incrustation and blockage is reduced, meanwhile, heat exchange fluid between the plates is treated through the ultrasonic transducers, the turbulence is increased and the uniformity of the fluid is improved in cooperation with internal vibration pieces, and the heat exchange efficiency is improved. Therefore, the heat exchange effect of the whole plate heat exchanger is improved.

The invention relates to the field of surveying and mapping devices, in particular to a geographic information acquisition surveying and mapping device which comprises a device body, a lifting mechanism is arranged on the device body, a spiral drill rod is arranged on the lifting mechanism, and a transmission mechanism used for rotation of the spiral drill rod is arranged between the lifting mechanism and the spiral drill rod. And a sample pushing mechanism for reducing upward extrusion of the soil sample is arranged between the interior of the spiral drill rod and the transmission mechanism. According to the geographic information acquisition surveying and mapping device, the spiral drill rod, the transmission mechanism, the sample pushing mechanism and other components are arranged, and when the spiral drill rod descends and rotates through the lifting mechanism and the transmission mechanism, arc-shaped pushing teeth move upwards in an intermittent mode and slightly deflect by a certain angle, so that when soil is lifted by means of blade grooves, the soil is lifted; according to the spiral drill rod, the spiral blades are arranged, soil in the grooves of the spiral blades is pushed, excessive extrusion of the spiral drill rod on the soil in the soil drilling process can be reduced, disturbance on the soil is reduced, and the accuracy of follow-up laboratory analysis is further improved.

The invention provides sewage disposal equipment of a sewage treatment system, and relates to the technical field of spiral conveying, the sewage disposal equipment comprises two supports, a sealed conveying cylinder, a driving device and a discharging hopper, the two supports are symmetrically installed at the two ends of the exterior of the sealed conveying cylinder respectively, and the discharging hopper is installed in one end of the sealed conveying cylinder in a communicating mode; a sewage inlet pipe is installed on the upper portion of the interior of the sealed conveying barrel in a communicating mode, a shaft rod is arranged in the sealed conveying barrel, a spiral blade is arranged outside the shaft rod, the driving device is arranged above one set of supports, and the spiral blade can be driven to rotate in the sealed conveying barrel through connection of the driving device. A discharging pipe is installed below the end, away from the discharging hopper, in the sealed conveying barrel in a communicating mode. According to the invention, the combination of source pretreatment and efficient conveying of fibers is realized, and the operation continuity, reliability and maintenance convenience of equipment during treatment of complex fiber sludge are remarkably improved.

The utility model discloses a combined water bath type vaporizer, which particularly relates to the technical field of vaporizers and comprises a vaporizing cylinder, a top plate is mounted at the top end of the vaporizing cylinder, and a stirring component is mounted in the vaporizing cylinder; the stirring assembly comprises a motor, a lead screw is installed at the output end of the motor, a threaded block is installed on the outer side of the lead screw, a plurality of baffles are fixedly connected to the outer side of the threaded block, a fixing rod is fixedly connected to the bottom end of the lead screw, spiral blades are fixedly connected to the outer side of the fixing rod, and a fixing plate is fixedly connected to the bottom end of the fixing rod. By arranging the stirring assembly, compared with the prior art, water at the bottom end of the vaporization barrel can be stirred through the spiral blade and the multiple stirring fan blades, then the threaded block moves on the lead screw to drive the multiple baffles to convey water at the top end of the vaporization barrel to the bottom end of the vaporization barrel, temperature stratification in water can be effectively broken, and the water quality is improved. Therefore, heat generated by the heating pipe is more uniformly transferred to the whole water bath, the heat transfer efficiency is improved, and the gasification process is more stable.

The invention discloses compost treatment equipment for organic fertilizer processing, and relates to the technical field of compost, the compost treatment equipment comprises a compost mechanism, a stirring mechanism and air injection mechanisms, the stirring mechanism is mounted on the compost mechanism, and multiple groups of air injection mechanisms are mounted on the stirring mechanism. The diameters of the spiral blades are gradually increased from bottom to top, the small-diameter blades at the bottom can lift and pull deep dense materials upwards, the large-diameter blades at the top can scatter the materials at a high position to form full-pile turning, meanwhile, the air injection mechanism synchronously rotates along with the stirring hollow rod, and after an air source enters the stirring hollow rod through the air inlet cylinder, the stirring hollow rod is driven to rotate. Under the matching action of a fixed cam and a spring, an end exhaust hole and a waist exhaust hole of an air injection communicating pipe are opened and closed at proper time, air is accurately injected into a turned material, the material is in full contact with oxygen while being turned, the contact area and efficiency of the material and the air are greatly improved, the local oxygen deficit problem is effectively avoided, and the service life of the material is prolonged. Uniform decomposition of compost materials is promoted, and the composting period is shortened.

The road maintenance pavement repairing device comprises a material storage pipe, the front end of the material storage pipe is detachably connected with a material injection nozzle in a sealed mode, the rear end of the material storage pipe is detachably connected with a connecting sleeve in a sealed mode, and a gear motor is fixedly installed on the outer wall of the connecting sleeve; an output shaft of the speed reduction motor penetrates into the material storage pipe and then is fixedly connected with a square rod, a rotating shaft is arranged in the material storage pipe, spiral blades are fixedly arranged on the peripheral wall of the rotating shaft, and the end, facing the speed reduction motor, of the rotating shaft is arranged on the square rod in a sleeving mode through a square hole; according to the device, through cooperation of a second positioning block and different second positioning grooves, the orientation of a handle can be adjusted relative to a material storage pipe, and the device is matched with two scenes of material supply of a material storage hopper and material supply of a material pumping hose; the auxiliary grip is detachably connected with the ring body through the quick release mechanism, the orientation can be adjusted through the matching of the locking mechanism and different clamping grooves, the use habits of a left-hand user and a right-hand user can be met at the same time, and the operation comfort and stability are improved.

The application provides a composite low-voltage power cable, and belongs to the technical field of cables.The composite low-voltage power cable comprises an outer shell and a copper strip.Five groups of isolation sleeves are fixed together by a connecting block to ensure stable connection between the isolation sleeves and the copper strip, prevent displacement under external pressure, ensure stability of the copper strip, avoid circuit failure, and support columns are arranged at the centers of the isolation sleeves to provide support force, maintain stability of the isolation sleeves, prevent deformation or loosening, improve stability of the cable under high pressure or bending, spiral blades are clamped in the isolation sleeves to promote air circulation, improve heat dissipation performance, reduce heat accumulation, and reduce the risk of cable failure, the spiral blades also help maintain the shape of the isolation sleeves, prevent deformation caused by external pressure, and the combination of the support columns, the spiral blades and the isolation sleeves improves mechanical stability of the cable, which can withstand greater external impact or tension and ensure stable operation of the cable under high load.

The invention relates to the technical field of petroleum and natural gas well cementation, in particular to a well cementation floating device with a turbulence function, and aims to solve the problem that cement is easy to settle at the bottom of a casing during horizontal well cementation operation by a wet shoe method. The device comprises a main body, a turbulence assembly and a valve assembly, two ends of the main body are through; the turbulence assembly and the valve assembly are arranged in the main body; the turbulence assembly is communicated with the valve assembly; the turbulence assembly comprises a turbulence pipe; the turbulent flow pipe is provided with a first port and a second port; the first port is arranged at the upper end of the turbulence pipe, and the second port is arranged at the lower end of the turbulence pipe; spiral blades are arranged in the turbulent flow pipe; the first port and the second port are communicated up and down to form a turbulent flow channel. According to the scheme, through cooperation of the turbulence assembly and the valve assembly, the flowing effect of the bottom can be enhanced, sediments such as cement at the bottom can be effectively scoured, and blockage is avoided; and meanwhile, the wet shoe channel can be replaced in the fracturing operation, and the construction efficiency is improved.

This utility model discloses a baking device for steelmaking plants, including a baking furnace body, a combustion nozzle assembly, and a slag collection trough. The baking furnace body has a feed inlet at the top and a discharge outlet at the bottom. The combustion nozzle assembly is vertically positioned above the interior of the baking furnace body. The slag collection trough is located below the baking furnace body, with an open top connecting to the discharge outlet. The bottom wall of the slag collection trough is inclined, and a spiral slag discharger rotates within it, with its axis parallel to the bottom wall. This utility model adjusts the height of the injection pipe and nozzle by extending and retracting the first cylinder of the combustion nozzle assembly, thus optimizing baking uniformity for materials of different thicknesses. After baking, the slag falls into the slag collection trough through the discharge outlet and slides along the inclined bottom wall towards the spiral slag discharger. The rotating spiral blades, with a variable pitch structure, push the slag towards the outlet, improving slag discharge efficiency.

The utility model relates to powder metallurgy technical field, and disclose a kind of anti-clogging feeder for powder metallurgy, including movable frame, the top of movable frame is fixedly installed with mounting bracket, the inboard of mounting bracket is fixedly installed with fixed barrel, the inside of fixed barrel is provided with stirring anti-blocking mechanism, the bottom of fixed barrel is provided with conveying and discharging mechanism, in the utility model: through stirring anti-blocking mechanism, effectively avoid the accumulation jamming caused by not in place, let powder keep good flow state, ensure that the discharging process is smooth, through conveying and discharging mechanism, utilize helical blade stem rotation, powder is conveyed to the vicinity of discharging pipe, drive rubber piston to push powder, not only increase the power of powder conveying, also can effectively prevent powder from being jammed at the connecting place of conveying pipe and discharging pipe, by pulling limit plug rod, change its limit degree to powder conveying, can accurately control the time length of powder from discharging port, thereby realize ration discharging, improve the utilization of powder.

The novel slope supporting net comprises an anchoring device and a flexible line, the anchoring device comprises a power rod and a positioning cylinder, the top end of the power rod is fixedly connected with a limiting plate, a connecting block is arranged above the limiting plate, a power hole penetrating through the connecting block is formed in the connecting block, and the flexible line is arranged in the power hole. A spiral blade is arranged below the power rod; a positioning cylinder is arranged below the limiting plate, the radius of the limiting plate is larger than that of the positioning cylinder, and the positioning cylinder is movably connected with the power rod. According to the utility model, the power rod can repeatedly drive the positioning cylinder to drill into the slope surface, so that the cost is saved; anchor rods can be additionally arranged in anchor rod holes in the hexagonal fixing plate according to the slope supporting condition, so that the supporting effect is enhanced; the anchoring devices are connected into a net-shaped structure through the flexible lines, the size of grids can be adjusted according to the size of gravel on the slope surface, the blocking effect on small rock soil blocks falling off from the slope is improved, and the flexible lines are high in plasticity and suitable for supporting the slope surfaces of various shapes.

The utility model relates to a river sludge rapid dehydration and collection device which comprises a rack, a dehydration box is installed above the rack, and the interior of the dehydration box is divided into a dehydration chamber and a collection chamber; a dewatering barrel is arranged in the dewatering chamber, a rotating shaft is rotationally connected in the dewatering barrel, a spiral blade is arranged on the outer side wall of the rotating shaft, one end of the rotating shaft penetrates through the dewatering barrel and the dewatering box and then is connected with a driving assembly on the rack, and the other end of the rotating shaft penetrates through the dewatering barrel, the vertical partition plate and the dewatering box and then is rotationally connected with a bearing on the rack; the driving assembly can drive the rotating shaft to rotate; a discharging opening for dehydrated sludge to pass through is formed in the middle of the vertical partition plate, a baffle for blocking the discharging opening is slidably connected to the side wall of the rotating shaft in the collecting chamber, and the baffle is driven by the telescopic assembly to move in the length direction of the rotating shaft. The device has the beneficial effects of high dehydration efficiency, integrated operation, stable structure, thorough sewage separation, flexible operation and the like, and can be widely applied to the field of river sludge treatment.

The utility model belongs to the field of sika deer breeding technology, concretely relates to a feeding trough for sika deer breeding, the feeding trough for sika deer breeding, including bottom plate, the upper surface of bottom plate is fixedly connected with first stand, the upper surface of first stand and the upper surface of bottom plate all are fixedly connected with first conical cylinder, the inner wall of first conical cylinder is fixedly connected with second stand. This feeding trough for sika deer breeding cooperates first conical cylinder, material baffle cylinder, round hole, cylinder and electric push rod, makes sika deer after feeding, by separating material baffle cylinder and first conical cylinder, surplus feed can slide to the bottom of first conical cylinder, simultaneously, when first drive motor drives helical blade rotation, by the cooperation of helical blade and material conveying pipe, surplus feed in first conical cylinder can be automatically returned to storage barrel, so as to realize the automatic recovery of surplus feed after sika deer feeding, and effectively reduce the labor intensity of breeding personnel.

The invention discloses an anti-scaling steam type scraper evaporator, and belongs to the technical field of evaporators. The anti-scaling steam type scraper evaporator comprises a shell, an evaporation assembly is installed in a connecting shaft and used for smearing feed liquid on the inner wall of the shell to form a thin film to flow downwards, and the evaporation assembly is matched with a steam inlet pipe to introduce steam for heating and evaporation; when a scraper is driven to rotate through a connecting shaft, a rotating frame and a filter screen can be driven to synchronously rotate, centrifugal force is generated to perform solid-liquid separation on feed liquid, evaporated liquid is discharged after entering a liquid collecting bin, and a small amount of liquid enters a pressure bin through steam to jack up a piston so as to be extruded into a sleeve. And then the particles are conveyed to the surface of the filter screen through the spiral blades and are mixed and diluted with the feed liquid in cooperation with centrifugal force, the feed liquid is prevented from blocking the filter screen and promoting evaporation of the feed liquid, when the piston descends, the particles on the surface of the rotating frame can be sucked into the liquid collecting bin through the dirt discharging groove and then discharged along with the liquid, and the particles are prevented from being gathered in the shell and scaling is avoided.

The invention discloses a municipal sewage treatment device, and relates to the technical field of sewage treatment, the municipal sewage treatment device comprises a treatment tank, and the treatment tank is internally provided with a hollow cylinder coaxially arranged with the treatment tank. By means of the driving assembly, the rotating rod and the sleeve rotate at different speeds in the same direction (the rotating speed of the rotating rod is smaller than that of the sleeve), sewage and a coagulant can be fully homogenized and mixed within a short time in cooperation with high-speed stirring of the first spiral blades with small screw pitches, floc formation is rapidly promoted, and the mixing reaction efficiency is greatly improved; by means of buffer space transition between the first spiral blade and the second spiral blade and the design that the screw pitch of the second spiral blade is gradually increased, the gradient change of the stirring speed from high to low is achieved, it is guaranteed that flocs are stably coagulated and increased, the flocs can be promoted to fully adsorb suspended particles in sewage, and the precipitation performance of the flocs is remarkably improved; all links are smoothly linked, so that the efficient coordination of impurity removal, floc formation and precipitation is realized.

The utility model relates to the technical field of foundation reinforcement in civil construction engineering, and discloses a building concrete mixing pile which comprises a grouting vehicle, the top of the grouting vehicle is fixedly connected with a power mechanism, the output end of the power mechanism is fixedly connected with a slurry conveying pipeline, the outer wall of the slurry conveying pipeline is fixedly connected with a mixing mechanism, and the mixing mechanism is fixedly connected with the grouting vehicle. A partition plate is fixedly connected to the inner wall of the grouting vehicle, a grouting mechanism is fixedly connected to the top of the partition plate, a controller is arranged outside the grouting vehicle, the stirring mechanism comprises a drill rod, the inner wall of the drill rod is fixedly connected to the outer wall of the slurry conveying pipeline, a first spiral blade is fixedly connected to the outer wall of the drill rod, and a second spiral blade is fixedly connected to the outer wall of the first spiral blade. And the bottom of the drill rod is detachably connected with a stirring head. According to the utility model, the construction quality and efficiency of the concrete mixing pile are ensured, the stable improvement of the foundation reinforcement effect is realized, meanwhile, the construction time and cost are reduced, and the device is suitable for wider geological conditions.

The utility model discloses a mixed device for calcium magnesium phosphate production, including box, the right side communication of box top has the feeding hopper, the bottom communication of box has the discharge valve pipe, the left and right sides of box surface all are fixedly connected with the cylinder. The utility model discloses through driving motor drives helical vane pole rotation, can realize the stirring of material in the box, and the cylinder drives the movable frame to move up and down, drives the movable ring and the up and down movement of the stirring piece, carries out secondary disturbance to material, and the mixing effect of material is enhanced from horizontal and vertical direction, and the annular scraper of movable ring outside moves up and down along with the movable ring, can scrape the material adhered in the inner wall of box, so as to reach in the mixed box inside setting the supplementary mixing structure that can move up and down, improve mixing effect, make the fertilizer mix evenly, scrape the inner wall of mixed box simultaneously, avoid the material adhesion in the device inner wall, the effect that the user uses conveniently.

The utility model discloses a prevent no -shaft spiral vane jumping device, the utility model relates to material conveying equipment technical field. Including: the shell assembly is rotated and is connected with spiral shaft assembly in the inner wall of shell assembly, the outer wall fixedly connected with gear box of spiral shaft assembly, the input of gear box is fixedly connected with speed -reducing motor, the inner wall fixed mounting of shell assembly has prevented vane jumping device, this device is through setting prevents vane jumping device, through the rolling contact of rotary drum and spiral shaft assembly, provides reverse restriction force when vane produces jumping tendency under external force, directly inhibits the jumping amplitude, and this kind of structure design can effectively respond to the radial jumping caused by uneven sludge viscosity, impurity impact etc, ensure that spiral vane runs stably, and the device reaches the purpose that prevents no -shaft spiral vane jumping device.

The invention discloses a modular pumped storage power station capable of synchronously cleaning deposited silt, which comprises an upper reservoir built at a high position and a lower reservoir built at a low position, the upper reservoir is provided with a reservoir dam body, and the reservoir dam body of the upper reservoir is communicated with the lower reservoir through a drainage conveying pipe; a synchronous desilting mechanism is arranged at the position, located at the reservoir dam body, of the upper reservoir and comprises a synchronous desilting containing pipe which is horizontally arranged in an extending mode, a synchronous desilting driving shaft is rotationally connected into the synchronous desilting containing pipe, and a desilting driving spiral blade is arranged on the synchronous desilting driving shaft; a sludge input communicating shell which communicates with the interior of the synchronous desilting containing pipe and extends horizontally is fixed to the lower side of the synchronous desilting containing pipe; in the process that water in the upper reservoir flows into the lower reservoir through the drainage conveying pipe for power generation, sludge in the upper reservoir is synchronously cleaned, and the dredging driving spiral blades are driven by water flow flowing into the drainage conveying pipe to rotate, so that sludge entering the synchronous dredging containing pipe is cleaned.

This invention discloses an adjustable dual-band acoustic metasurface absorber with nested double-helix tracks, comprising an outer cavity, an inner cavity, and a central column arranged coaxially. A sealing cover is provided on the inner cavity, with a through hole and a central hole for avoiding the center. The inner wall of the outer cavity and the outer wall of the inner cavity form an outer large-radius spiral channel, within which outer helical blades are arranged spirally extending along the central axis of the central column. The inner wall of the inner cavity and the outer circumferential surface of the central column form an inner small-radius spiral channel, within which inner helical blades are fixedly connected to the central column. This invention can effectively absorb noise over a wide frequency band (especially in the low-frequency range), exhibits good environmental adaptability and durability, can intelligently adjust sound absorption characteristics, and simultaneously considers environmental friendliness and aesthetics.