2118 results about "Helical blade" patented technology

The invention discloses equipment and a method for preparing spray condensation microcapsules, and relates to the technical field of spray condensation microcapsule preparation, the equipment comprises a melting homogenizing kettle and a condensing tower, a spray head is arranged in the condensing tower, and a movable spray mechanism used for enabling the spray head to move circumferentially and swing back and forth at the same time is mounted on the condensing tower. Through the arrangement of the movable spraying mechanism, the spraying head can spray material liquid drops in the condensing tower in a back-and-forth swinging manner while moving circumferentially, so that the material liquid drops can be uniformly dispersed in a wider area and can be in contact with more cold air, local supercooling or superheating is avoided, and a more uniform cooling effect is obtained; meanwhile, through the matched arrangement of the spiral blades, cooling airflow can spirally flow and be uniformly distributed, the gas-liquid contact area is increased, the gas-liquid contact time is prolonged, gas-liquid exchange is more sufficient, finally, it can be ensured that each material liquid drop can be sufficiently cooled, and the embedding efficiency and the quality of microcapsules are effectively improved.

The invention provides an energy-saving electrical equipment control cabinet, which belongs to the technical field of electric control cabinet cooling, and comprises a cabinet body, a circulating cooling assembly, a trigger cooling assembly and an electromagnetic reset assembly, the temperature sensor monitors the temperature of the cabinet body in real time and cooperates with the circulating fan and the exhaust fan to realize energy-saving heat dissipation control; the high-heat-conduction particles ensure that the high heat conduction performance can be maintained under different working conditions, even if the environment temperature or the air flowing state is changed, heat can still be transferred, and the heat dissipation effect is ensured; the trigger cooling assembly controls liquid nitrogen release according to the temperature of the cabinet body, automatically triggers liquid nitrogen cooling when the temperature rises to a certain degree, and automatically stops after the temperature is reduced, so that liquid nitrogen is prevented from being excessively used, and an expected heat dissipation effect can be achieved even if the external temperature is relatively high; liquid nitrogen and air are promoted to be fully mixed through the spiral blades, meanwhile, gas-liquid separation can be promoted, a stable low-temperature operation environment is provided for electrical equipment, and damage to the equipment due to too high temperature and moisture is reduced.

The invention discloses a sand mold 3D printer for casting, which is applied to the technical field of casting molds, and is characterized in that a structural frame is arranged as a support of a structure and is lifted to a horizontal height convenient to use, a sand supply device is used for extracting sand, and the sand is injected into a sand shakeout device; when the sand material is fed, the sand material is guided by the sand material hopper with a larger area, so that the material is not easy to scatter, then the sand material is guided into the sand storage box, and the arranged stirring shaft continuously rotates on the inner side of the sand storage box and is matched with the spiral blade on the outer side of the stirring shaft to continuously stir the sand material, so that the sand material continuously keeps moving; the adhesive spraying device is arranged in the sand hopper and is relatively uniform in the sand hopper, meanwhile, the effect of smashing caked sand is achieved, the situation that the structure is blocked is avoided, and during manufacturing, the molding box moves to the bottom of the structural frame, and then the adhesive spraying device moves along the horizontal guide rail.

The invention relates to the technical field of TMBP preparation, in particular to a TMBP reaction device and a TMBP synthesis method. The reaction device comprises a closed tank body, a heating mechanism is arranged in the tank body, the tank body is divided into a gas phase area and a liquid phase area from top to bottom, a hollow rotating shaft is arranged in the center of the tank body, the top of the hollow rotating shaft is connected with a motor, a gas inlet mechanism is arranged in the hollow rotating shaft, gas inlet holes communicated with the gas phase area are formed in the upper portion of the side wall, and a gas distribution mechanism is arranged below the side wall. The gas distribution mechanism comprises a plurality of hollow and horizontally-arranged spiral blades which are communicated with the hollow rotating shaft in a sealed mode, the outer side wall is provided with a gas outlet pipe perpendicular to the normal of the outer side wall, and the gas outlet pipe is provided with a one-way nozzle. The device is compact in overall structure, small in occupied area and good in stirring effect, oxygen in a gas phase region can be dispersed into a liquid phase region, the gas distribution mechanism has gas distribution and stirring effects at the same time, the oxygen content and dispersion uniformity in a liquid phase are greatly improved, the reaction efficiency is improved, and the reaction time is shortened.

The invention belongs to the technical field of gas production wellhead devices, and particularly relates to a sulfur-resistant and carbon dioxide-resistant gas injection and production wellhead device which comprises an injection and production four-way assembly, a crossover flange assembly and a desanding assembly. The desanding assembly comprises a first pipe body, a second pipe body, a treatment box, a desanding barrel, one end of the desanding barrel, an inner spiral piece, a spiral groove, an air cylinder and an internally-tangent spiral blade. When the air pressure of the natural gas is reduced, the air cylinder pushes the internally-tangent spiral blade downwards through the bearing, the internally-tangent spiral blade rotates along the spiral groove in the downward pushing process, the path of the natural gas passing through the inner spiral blade is reduced, the centrifugal force of the natural gas is increased along with increase, and gravel in the natural gas can be thrown out of the sand removing barrel. Due to the fact that the pressure of the natural gas is reduced, a vortex-shaped gas column is formed on the shaft portion of the desanding cylinder and begins to diffuse, when the natural gas passes through the internally-tangent spiral blade, the internally-tangent spiral blade can guide the diffused gas column, the diffused gas column is gathered towards the shaft portion of the desanding cylinder again, the stability of the gas column is improved, and the influence of the gas column on gravel is reduced.

The invention relates to the technical field of ocean engineering and hydrological observation equipment, and discloses a self-powered hydrological detection device self-adaptive to seabed erosion and deposition changes, comprising a self-powered system comprising a vertical shaft eccentric helical blade, a rotor cross bar and a rotor vertical shaft, the bottom of the rotor vertical shaft is connected with a power generation module, and the bottom of the rotor vertical shaft is connected with a power supply module; the two rotor cross rods are sequentially arranged on the outer wall of the rotor vertical shaft from top to bottom, the outer walls of the three vertical shaft eccentric spiral blades are installed on the rotor cross rod triangles respectively, and the power generation module is electrically connected with an energy management unit. Through linkage control of the terrain adaptability system and the LSTM prediction model, on one hand, dynamic adjustment of the anchoring depth of the support can be achieved, and instrument displacement or burying is avoided; on the other hand, overall lifting and oblique movement of the device can be achieved, and equipment recovery and detection position conversion are facilitated; and meanwhile, an ocean current-temperature difference complementary power generation and intelligent energy storage system is adopted, so that five-year maintenance-free continuous power supply is realized.

The utility model discloses a vertical evaporation system and a vertical heat pump vacuum evaporator. The system comprises a stock solution evaporator, an evaporation heat exchanger and a condensation heat exchanger, wherein the evaporation heat exchanger is arranged on the outer side of the lower part of the stock solution evaporator; a discharge port is formed in the bottom of the stock solution evaporator, and the rotating shaft is driven by the driving motor to rotate and drive the spiral blade at the discharge port to rotate; a flat heat exchange surface is arranged at the lower part of the stock solution evaporator and is used for exchanging heat with the evaporation heat exchanger; a scraping plate capable of scraping the heat exchange surface is tightly attached to the heat exchange surface; the condensation heat exchanger is arranged in the stock solution evaporator and located on the upper portion of the stock solution evaporator. By adopting the scheme, not only can the heat exchange surface of the stock solution evaporator be scraped and cleaned through the scraping plate, but also the problems of accumulation and discharge of concentrates are synchronously solved through the spiral blade at the discharge outlet at the bottom, and dirt deposition or salt hardening caused by accumulation of the concentrates at the bottom of the stock solution evaporator is avoided.

The utility model discloses a waste acid concentration and recovery device, which relates to the technical field of waste acid recovery, and comprises a flocculation barrel and a heating barrel, and further comprises a disturbance impurity removal unit and a transfer filtering unit which are arranged between the flocculation barrel and the heating barrel, the disturbance impurity removal unit comprises a collection hopper, an impurity removal vertical pipe, a rotating rod, a driving motor, a disturbance transverse plate and a spiral blade; the adjusting and filtering unit comprises a circular brush plate, a servo motor, a screw rod, a flocculating agent input pipe and a circular filter plate. In the utility model, the disturbance transverse plate fixedly arranged on the peripheral surface of the rotating rod can disturb and stir waste acid and a flocculating agent, flocculate is extruded by the circular filter plate and then is gathered through the aggregate bin, and when the flocculate is removed, a pipe plug on the impurity removal vertical pipe is taken down, so that the waste acid and the flocculating agent can be removed. And the spiral blade wound on the peripheral surface of the rotating rod can push and guide out the gathered flocculate on the impurity removal vertical pipe to complete removal, so that the flocculate is smoothly discharged and guided out, and the subsequent treatment effect is ensured.

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 invention provides a cement kiln bypass ventilation and high-chlorine material treatment device, and relates to the technical field of bypass ventilation devices.The spraying mechanism comprises a fixed rotating shaft, the fixed rotating shaft is fixedly installed through a fixed output shaft and a servo motor, and a first bevel gear is arranged on the fixed rotating shaft; a first bevel gear is rotatably mounted on the annular steel tank body, a second bevel gear is engaged with the circumferential surface of the first bevel gear, a third bevel gear is engaged with the circumferential surface of the second bevel gear, a first fixing shaft is rotatably mounted on the second bevel gear, and the first fixing shaft is fixedly mounted on the annular steel tank body. A spiral blade centrifugal separation unit and a rotational flow plate demister fine treatment unit are innovatively integrated in the device, a spiral blade adopts a variable pitch design and is driven by a servo motor, the rotating speed can be adjusted according to the working condition of flue gas, airflow is driven to form a strong rotational flow field, and high-chlorine dust with large particle size in the flue gas rapidly moves towards a tank wall under the action of centrifugal force.

The invention relates to the technical field of roof devices, in particular to an anti-blocking siphon roof drain which comprises a drain pipe. The mounting plate is fixedly connected to the upper part of the bucket pipe; the blocking net is fixedly connected to the mounting plate, and a containing cavity is formed in the upper portion of the blocking net; the mounting frame is fixedly connected to the top of the blocking net; the threaded rod is rotationally connected into the blocking net; the mounting ring is sleeved outside the threaded rod in a penetrating manner; the balls are in rolling connection with the mounting ring; the cleaning plate is fixedly connected to the mounting ring; the motor is fixedly connected in the accommodating cavity; and the spiral blade is rotationally connected in the mounting frame. By arranging the cleaning plate capable of moving up and down, intercepted sundries are fished out, the fished-out sundries are collected in the containing cavity in a unified mode in cooperation with the rotating spiral blade, the sundries are prevented from being sucked into the device in a direct sundry treatment mode, and the device is prevented from being blocked, so that the normal drainage function of the device is guaranteed, and the service life of the device is prolonged. The purpose of solving the problem that the normal function is affected by sundries is achieved.

According to the centrifugal pump with the double-spiral blades and the double-roller type granulator using the centrifugal pump, the double-spiral blades are adopted, and the first blade and the second blade influence and balance each other; the contour line of the working surface of the first blade is an Archimedes spiral, and the contour line of the back surface of the second blade is a logarithmic spiral; the contour line of the back face of the first blade comprises a part of a first equal-pitch spiral line close to the inlet side and a part of a first variable-pitch spiral line away from the inlet side, and the contour line of the working face of the second blade comprises a part of a second variable-pitch spiral line close to the inlet side and a part of a second equal-pitch spiral line away from the inlet side. According to the spiral vane pump, the instability of fluid in the spiral vane pump can be optimized, vibration and noise are reduced, the second vane is equivalent to supplement of the first vane, cavitation and cavitation are effectively reduced, and the hydraulic efficiency and the stable performance of the centrifugal pump are improved to a certain degree.

The invention relates to the technical field of spraying devices, and discloses a self-cleaning anti-blocking waste liquid spray gun which comprises a gun body, a spray head, a filter short pipe and a cleaning assembly, the filter short pipe is arranged at the rear end of the gun body, a first connecting rod is arranged in the gun body to be connected with the cleaning assembly, the cleaning assembly comprises a rotating shaft, a spiral blade and a cleaning brush, and the spiral blade is made of carbon fiber reinforced polymer. A brush head is arranged at the front end of the cleaning brush and movably connected with the rotating shaft, the nozzle is in threaded connection with the gun body, and a filter screen and a sealing washer are arranged in the filter short pipe and in threaded connection with the gun body and the waste liquid pipe. The motor drives the rotating shaft through the bevel gear, so that the cleaning brush rotates to clean the spray head connecting plate, the jet flow holes are prevented from being blocked, the filter short pipe can be washed after use, the spray head and the filter short pipe can be taken down after long-time use, and the motor is started to clean the interior after the gun body is sealed by adding cleaning liquid. The method is suitable for various waste liquid treatment scenes.

The invention belongs to the technical field of waste gas treatment, and discloses a treatment device for waste gas containing dichloromethane. Comprising a filter pipe, an adsorption pipe and a communicating pipe, a stainless steel mesh and a non-woven fabric are arranged in the filter pipe, two filter screens are fixedly connected in the adsorption pipe, and the air purifier further comprises an air inlet area and an air outlet area which contain activated carbon particles. By arranging the driving assembly, after activated carbon particles are adsorbed for a period of time, a sealing plate is opened firstly, a first motor is started, the first motor drives a second rotating shaft and a second bevel gear to rotate, the second bevel gear drives the first rotating shaft to rotate through the first bevel gear, and the first rotating shaft can drive two spiral blades to rotate; the two spiral blades enable the activated carbon particles in the air inlet area to enter the air outlet area through the second through opening, and the activated carbon particles in the air outlet area enter the air inlet area through the first through opening, so that the activated carbon particles are driven to move in the adsorption pipe, and the purpose that the activated carbon particles in each section can fully and uniformly adsorb impurities is achieved.

The invention belongs to the technical field of sludge dewatering, and discloses a water conservancy project sludge separation device which comprises a supporting frame, a filter cylinder is installed on the inner wall of the supporting frame, and the lower end face of the supporting frame communicates with a water outlet; the spiral blade is arranged in the filter cartridge in a sleeving manner and is connected with an output shaft of the servo motor through a transmission assembly, the screw pitch of the spiral blade is gradually reduced from the feeding end to the discharging end of the filter cartridge, and sludge is dewatered; a moisture sensor is arranged on the outer wall of the extrusion plate and is used for detecting the moisture content of the extruded and dehydrated sludge; the cleaning assembly is arranged outside the filter cartridge and comprises a water spraying ring, a valve rod, a valve shell and a hydraulic rod; the water spraying ring has small water yield when the front end of the filter cartridge is slightly blocked, and has large water yield when the rear end of the filter cartridge is seriously blocked. The flushing water pressure can be automatically adjusted according to the blocking degrees of different areas outside the filter cartridge, water resources can be saved, and the cleaning effect is not affected.

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 invention is suitable for the technical field of cable production, and provides cable insulation layer coating equipment which comprises an equipment base, a first side rack, a discharging barrel and a supporting barrel, and the first side rack, the discharging barrel and the supporting barrel are arranged on the equipment base. A storage bin is fixed at the upper end of the discharging barrel, and the lower end is connected with the supporting barrel through a discharging pipe. A rotatable wrapping pipe is arranged in the supporting cylinder and driven by a first driving assembly to rotate, an annular groove is formed in the outer wall of the wrapping pipe, an annular heating net is arranged in the annular groove, and a plurality of extrusion holes are distributed in the circumferential direction. The extrusion shaft is located in the middle of the discharging barrel, provided with spiral blades and driven by a second driving assembly to rotate, a heating rod is arranged at the lower end of the extrusion shaft and connected with the annular heating net, and the discharging barrel and the discharging pipe are provided with preheating assemblies. The device further comprises a feeding centering assembly and a discharging cooling assembly. By controlling the uniform distribution of the molten plastic and the centered support of the cable core and combining the rotary coating and water-cooling shaping technology, the coating quality and the production efficiency of the insulating layer are remarkably improved.

The utility model discloses a finished product storage device for toner production, which comprises a storage tank, a discharge unit is fixedly mounted below the storage tank, a toner stirring and blanking device is rotatably mounted in the storage tank, and a tank body drying device is mounted on one side of the storage tank. According to the toner storage tank, the tank body drying device is installed, the heating wire releases heat after being electrified, hot air is generated under the action of the draught fan, the hot air is input into the cavity through the pump body, the tank body can be heated, then moisture in the tank body is reduced, the toner storage effect is improved, the toner stirring and discharging device is installed in the toner storage tank body, and the toner storage effect is improved. When toner needs to be discharged, the stirring rod and the second spiral blade are driven to rotate, toner discharging is accelerated, the phenomenon that the toner blocks the discharging hopper is avoided, residual toner on the inner wall of the tank body can be scraped off through the arranged scraping plate, waste is reduced, the toner can be discharged through the additionally arranged discharging unit, and use is convenient.

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 fixing device for helical blade welding, which comprises a shaft body fixing mechanism for fixing a helical blade shaft body, and further comprises a base, a baffle plate assembly, a transmission assembly and a pushing mechanism, the two baffle assemblies are oppositely arranged on the base and can abut against the two ends of the spiral blade correspondingly. The transmission assembly is rotatably arranged on the base, one end of each pushing mechanism is movably arranged on the transmission assembly, the other end of each pushing mechanism abuts against the side face of the corresponding spiral blade, rotation of the transmission assembly can drive the pushing mechanisms to move, and pushing of the pushing mechanisms can drive the spiral blades to rotate at the same angular speed of a shaft body. According to the fixing device for welding the spiral blade, the previous spot welding process can be omitted, the spiral blade rotates along with rotation of the shaft body under the condition that the positions of the two sides are fixed during welding, and machine welding is more convenient.

The utility model relates to the technical field of water body suspended matter treatment, and discloses a water surface suspended matter cleaning device which comprises a box body, floating assemblies are arranged on the front face and the back face of the box body, a storage cavity is formed in the top of the box body, a collecting net bag is arranged in the storage cavity, and inlets are formed in the left side and the right side of the box body and correspond to the storage cavity. And shifting-in assemblies are symmetrically arranged on the inner walls of the two inlets. According to the floating object collecting device, floating objects are collected through the conveying effect of the pump body and the intercepting effect of the collecting net bag, in the collecting process, by arranging the shifting-in assembly, in the process that the pump body drives water flow to flow in the liquid outlet pipe, the water flow drives the spiral blade to rotate, and then the rotating shaft and the arc-shaped plate are driven to rotate through the transmission shaft; under the driving effect of rotation of the arc-shaped plate, the entering of the floating objects and the floating garbage into the collecting net bag can be accelerated, and under the stirring effect of the arc-shaped plate, the traction force on the floating objects can be improved, and the collecting effect is improved.

The utility model relates to the technical field of physical and chemical inspection, and discloses a filtering device for physical and chemical inspection, which comprises a base, a stand column is arranged on the right side of the top of the base, and a chute is arranged on the top of the left side of the stand column. According to the filtering device for physical and chemical inspection, a first driving motor is started to drive a spiral blade to rotate, liquid in a liquid storage hopper can be conveyed into a liquid conveying pipe at a constant speed in the rotating process of the spiral blade, and then the liquid flows downwards at a constant speed through the liquid conveying pipe, so that the purpose of uniform feeding is achieved; a second driving motor can be started to drive a filtering funnel and filter paper to rotate, and in the rotating process of the filter paper, liquid flowing down from a liquid conveying pipe can completely cover the surface of the filter paper by a circle, so that the surface of the filter paper is fed by a circle, and the feeding efficiency is improved. Therefore, the surface of the whole filter paper can filter liquid, and the utilization rate of the filter paper is improved.

The utility model belongs to the technical field of evaporative light-scattering detectors, and particularly relates to an atomizing nozzle of an evaporative light-scattering detector, which comprises an atomizing nozzle main body, a motor and a heat preservation component, an atomizing chamber is arranged at one end of the atomizing nozzle body, a nozzle is arranged at one end of the atomizing chamber, an ultrasonic transduction piece is arranged on the atomizing chamber, a liquid supplementing opening is formed in one side of the top of the atomizing nozzle body, and an air inlet is formed in the other side of the top of the atomizing nozzle body. The motor is arranged at the other end of the atomization nozzle body, the output end of the motor extends into an inner cavity of the atomization nozzle body and is provided with a rotating shaft, and spiral blades are arranged on the surface of the rotating shaft; the heat preservation assembly is arranged on the surface of the atomization nozzle body and comprises a heat preservation layer. The structure is reasonable, heat preservation and heating are convenient in the using process, meanwhile, a solution in the atomization spray head can be stirred, and uniform mixing is guaranteed.

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.

The invention discloses a stacked spiral sludge dewatering device and process, and belongs to the technical field of sludge treatment.The device comprises a dewatering cylinder, a rotating roller and a filter screen, and the left side of the dewatering cylinder is fixedly connected with a sludge discharging bin; the rotating roller is located in the center of the dewatering cylinder and driven by a motor, the outer wall of the rotating roller is fixedly connected with a spiral blade, the screw pitch of the spiral blade is gradually decreased from right to left, and the rotating roller comprises a thick roller, a thin roller and a gradual change roller; the sludge dewatering device disclosed by the invention has the beneficial effects that 1, the gradual change roller and the screw pitch gradual change type spiral blade are arranged, so that the volume of sludge is continuously reduced in the sludge conveying process, and the dewatering effect is improved; bristles are arranged to clean the filter screen, so that the filter screen is prevented from being blocked to affect the dewatering effect; and 3, a back pressure ring is arranged, and the pre-pressure of the back pressure ring can be adjusted, so that the pre-pressure of the back pressure plate can be adjusted as required, and the sludge dewatering degree is further adjusted.

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.