168results about How to "Reduce conveying resistance" patented technology

The invention discloses a continuous feeding device which can be used for sequentially providing boards of various specifications to a board welding automatic line. The feeding device comprises two conveying guide rails which are arranged in parallel, wherein material racks which are as many as specifications of the boards are arranged on the conveying guide rails in a sliding manner; the material racks are sequentially connected, and jacking holes are formed in the middle of the material racks; material carrying plates capable of moving up and down are arranged on the material racks; a jacking device for jacking the material carrying plates is arranged on a position, at a feeding station, between the conveying guide rails; a sensor for confirming whether the boards reach material getting height or not is arranged above the feeding station; feeding mechanical hands are arranged on positions, corresponding to the jacking device, at sides of the conveying guide rails; step mechanisms for driving the material racks to move are arranged at the other sides of the conveying guide rails; each step mechanism comprises a lead screw which is parallel to the guide rails and a step motor for driving the lead screw to rotate, wherein a slide base is arranged on each lead screw in a sleeving mode, and a drive rod which moves in a direction vertical to the conveying guide rails and a positioning drive device for driving the drive rod are arranged on the slide base; connecting sleeves which are matched with the drive rods are arranged on the material racks.

The invention relates to a thermoplastic plastic composite tube, which comprises a thermoplastic plastic composite tube body and a joint. The joint comprises a core tube and a jacket, which are buckled on both ends of the tube body; the end of a tube body of the thermoplastic plastic composite tube is expanded in a radial direction, so that the inner diameter of the core tube is equal to the inner diameter of the tube body, an inner layer and an outer layer of the tail end of the end of the tube body are stripped, the expanded end of the tube body is buckled between a trapezoidal tooth groove outside the core tube and a trapezoidal tooth groove of the jacket; and the end of the core tube is a joint connecting part. The thermoplastic plastic composite tube has the advantages of firm joint buckling, good sealing property, high pressure resistance and drawing resistance, the inner diameter of the joint is equal to the inner diameter of the pipeline, and the fluid conveying resistance is reduced.

The invention discloses a spray polyurea elastomer and a preparation method thereof. The spray polyurea elastomer comprises a component A and a component B, wherein the volume ratio of the component A to the component B is 1: 1; the component A is isocyanate prepolymer compounded through the reaction of polyether polyol, fluorine-containing polyol, and isocyanate, and the -NCO content is 12%-20%; the component B comprises the followings in parts by weight: 30-50 parts of amine-terminated polyether, 30-45 parts of a chain extender, 0.5-1.0 part of fumed silica, 0.1-0.5 part of a dispersing agent, 0.5-1.0 part of a defoaming agent and 1.0-5.0 parts of color paste. The polyurea elastomer provided by the invention is excellent in weather resistance, resistance to chemical reagents and fire resistance and good in abrasion resistance.

The invention provides a purifying treatment method for cuttings-carrying slurry of bentonite. The purifying treatment method for the cuttings-carrying slurry of the bentonite comprises the steps thatmud-water separating treatment is conducted, specifically, a multistage sieving device is used for conducting separating treatment on the input cuttings-carrying slurry, sandstone which does not conform to a slurry system is sorted out, then the slurry is subjected to concentrating and dewatering, and concentrated slurry and a mud-containing water body are obtained; and purifying and recovery ofthe mud-containing water body are conducted and comprise the steps of flocculation filter pressing and flocculation sedimentation, specifically, according to the flocculation filter pressing step, first the mud-containing water body is adjusted to a predetermined solid content, a flocculant is added, then a mixture enters a filter press for filter pressing, a mud cake and filter water are obtained, and according to the flocculation sedimentation step, the filter water generated in the flocculation filter pressing step is sent into a sedimentation tank and is subjected to sedimentation and layering in the sedimentation tank, and the upper layer of clear water is sent into a clear water tank for storage. According to the purifying treatment method for the cuttings-carrying slurry of the bentonite, the cuttings-carrying slurry can be subjected to full purifying treatment, zero discharge of water is realized, and a large amount of bentonite and the cost for dumping the waste slurry are saved.

The invention provides an ultrahigh wear-resisting hydrogen sulfide-proof polyether-ether-ketone aqueous suspension specially used for oil-well tubes, which has extremely low VOC content. After beingcoated on the internal wall of the oil-well tube by a high-speed rotating airless spraying process, the suspension provides a coating layer with the performances of high wear resistance, self-lubrication, high-temperature and high-pressure resistance, hydrogen sulfide resistance and corrosion protection. The aqueous suspension can be sprayed by air and can be applied to various nut threads and various impellers so as to improve the chemical resistance and wear resistance of the equipment. The PEEK aqueous suspension has excellent self-lubrication, provides less surface resistance for the equipment and has excellent effect in reducing conveying resistance and saving energy.

The invention belongs to the technical field of wet concrete recycling, and relates to a wet concrete recycling and screening machine and an application method thereof. The machine has an automatic sewage pumping and transporting function and an automatic fine sand filtration function. The provided screening machine has the advantages of small material transportation resistant force, controllable sewage flow, easy separation between fine sand from sewage, and reduction on energy and water. The screening machine comprises screening and transporting devices for sewage, stones, and sand materials. The application method comprises steps of pre-mixing, transportation, screening on stones and sand materials, and transportation of stones and sand materials. The recycling and screening machine has the following advantages: (1) the material is fed in a higher place and discharged in a lower position, and thus the transportation resistant force is greatly reduced; (2) the sewage in the recycling and screening machine is pumped and transported, and changed is the conventional sewage recycling method through a sewage overflowing opening; (3) the filtration of sewage containing fine sand and automatic screen net cleaning are realized; (4) the vehicle washing tank is clean without washing, the fine sand in sewage can be completely filtered and removed without a swirl separation system, and the screen net can be maintained a clean state without washing during vehicle cleaning.

The invention discloses a full-automatic pipe conveying machine matched with pipe processing equipment. The full-automatic pipe conveying machine matched with the pipe processing equipment comprises a machine frame, wherein the machine frame is provided with a feeding inclined surface and a feeding groove, a guide plate is arranged on the machine frame and between the feeding inclined surface and the feeding groove, and a material blocking pillar is arranged at the bottom of the feeding inclined surface. The machine frame is provided with an ejection mechanism conveying pipe materials from the feeding inclined surface to the guide plate. The ejection mechanism comprises at least two ejection rods movably arranged on the machine frame in the vertical direction and a driving mechanism driving the ejection rods to move vertically, the top surface of each ejection rod is an inclined surface in the same inclining direction as the feeding inclined surface, a material sensor is arranged in the feeding groove, and a pushing part and a pushing oil cylinder for driving the pushing part are arranged at the tail end of the feeding groove.

The invention discloses a separation method and a separation mechanism for a slice medium. The separation method comprises the steps that a separation roller drives the slice medium to move in the paper feed direction and a paper unwinding roller arranged opposite to the separation roller rotates intermittently in the paper unwinding direction, so that separation of the slice medium is achieved. The separation mechanism comprises a machine frame, the separation roller, the paper unwinding roller, a driving mechanism, an eccentric part, a one-way bearing and a thumbing rod, wherein the separation roller and the paper unwinding roller are oppositely arranged on the machine frame, the driving mechanism driving the separation roller to rotate, the eccentric part is arranged on the separation roller in a sleeved mode, the one-way bearing is arranged on the paper unwinding roller and can rotate in the paper unwinding direction, and the thumbing rod is arranged on the one-way bearing and can be thumbed by the eccentric part. The separation roller drives the slice medium to move in the paper feed direction and the paper unwinding roller rotates intermittently in the paper unwinding direction. According to the separation mechanism and the separation method, the paper unwinding roller rotates intermittently and stops rotating at other times, and therefore conveying resistance to the single slice medium is reduced, and smooth conveying of the single slice medium is achieved.

The invention discloses a novel coal ash grouting material, which is composed of specific components by mass: 1 part of coal ash, 2 parts of water, liquid water glass occupying 5% to 10% of the coal ash and sepiolite occupying 2%. to 5%.of the coal ash. Improved coal ash grout has strong adhesion performance on firing articles, can evenly and effectively cover the surfaces of the firing articles, is strong in water-retaining performance and good in fire resistance, can effectively block leakage insulate oxygen to prevent grout from losing, and is low in price, environmental-friendly, good in stability and suitable for pipeline transportation.

The invention provides a hot-rolled and hot-forged steel ball waste heat quenching device and process. The quenching device comprises a quenching water tank, and a screw push-rising mechanism obliquely arranged in the quenching water tank. A quenching medium is put in the quenching water tank, and the quenching water tank is divided into a quenching region and a slow cooling region through a supporting plate arranged below the screw push-rising mechanism. The screw push-rising mechanism pushes a steel ball to move through the quenching region and the slow cooling region from bottom to top. Thequenching process is based on the device, the quenched steel ball is uniform in hardness and free of cracking, and the mechanical performance is improved.

The invention relates to a sidesway separation movable bracket type tubular belt conveyor. The sidesway separation movable bracket type tubular belt conveyor comprises machine frames, annular adhesive tapes, driving components, annular supporting and clamping components and guide rail bend wheels, wherein the annular adhesive tapes can bear materials; the driving components of the adhesive tapes are respectively arranged at machine heads and machine tails; the annular supporting and clamping components can support and clamp the adhesive tapes; the annular adhesive taps are hung and wound on the driving components in a sleeving manner; the supporting and clamping components are movably supported and clamped between the adhesive tapes and the machine frames; the support clamping components near the machine heads and the machine tails are separated from the adhesive tapes. The sidesway separation movable bracket type belt conveyor disclosed by the invention has the beneficial effects that the support components are used to replace carrier rollers in the prior art, and resistance between the carrier rollers and the adhesive tapes is changed into rigid rolling friction between the support components and guide rails; through the change of a mechanical structure, transport resistance is obviously reduced, and the dissipation power of the conveyor is greatly reduced.

A garlic harvester comprises a frame, a garlic bulb harvesting device is arranged on the rear side of the frame, and a garlic stem cutting and grinding device is arranged on the front side of the frame and comprises a cover. A stem cutting mechanism is arranged at the lower end of the cover, a rotating shaft is rotationally arranged in the cover, one end of the transmission shaft is provided with a spiral blade, a grinding mechanism is mounted at the other end of the transmission shaft, and the front side of the cover is provided with a feeding port corresponding to the spiral blade. The garlic bulb harvesting device comprises the frame fixedly arranged on the rear side of the cover, a soil loosening and shoveling mechanism is arranged on the lower side of the frame, a vibratory screening mechanism is arranged on the frame and on the rear side of the soil loosening and shoveling mechanism, a garlic bulb conveying mechanism is arranged on one side of the soil loosening and shoveling mechanism, and traveling wheels are arranged on the frame. The garlic harvester has advantages that garlic bulbs and garlic stems can be separated while garlic bulb mud removal and garlic stem grinding operations can be completed, ground garlic stems can be used as animal feed, and accordingly garlic harvesting efficiency is greatly improved, and labor amount is decreased.

The invention discloses a rubbish moving device in a buried box, a negative-pressure rubbish collecting and transporting system and a negative-pressure rubbish collecting and transporting method. Therubbish moving device, the negative-pressure rubbish collecting and transporting system and the method have better effects on collecting and transferring rubbish dumped by using a rubbish truck and ahandcart. The rubbish moving device comprises a foundation pit box, wherein a spiral conveyor is obliquely arranged in the foundation pit box; the higher end of the spiral conveyor is a discharging end; a strip-shaped feeding port is formed in the upper part of a shell of the spiral conveyor; the upper end of the strip-shaped feeding port is connected with a feeding hopper; the upper end of the foundation pit box is provided with a feeding door; the lower part of the discharging end of the spiral conveyor is provided with a discharging pipe; the discharging pipe is in a shape of a horizontal L; the vertical pipe section of the discharge pipe is connected with the spiral conveyor; and the horizontal pipe section of the discharge pipe is positioned below the spiral conveyor. The negative-pressure rubbish collecting and transporting system comprises the rubbish moving device in the buried box, a negative-pressure type rubbish collecting and transporting box and a butt joint system. The negative-pressure rubbish collecting and transporting method comprises the steps: a, carrying out butt joint; b, pumping a sealed bin and carrying out waste gas treatment; c, placing the rubbish into the box; and e, transferring the full box.

The invention provides a cooking utensil which comprises a cooker body and a cooker cover. The cooker cover is provided with a storage bin for storing raw materials, a discharge port is formed in the storage bin, and a first material conveying device is arranged in the storage bin; the cooker cover is further provided with a first driving device, and the first material conveying device is driven by the first driving device to convey the raw materials in the storage bin to the discharge port, wherein the volume of the storage bin is 0.2 L-3.6 L. The volume of the storage bin can be increased to decrease the overall size of the cooker cover, then the size of the cooking utensil is decreased, and therefore usage of a user is promoted.

A dust collecting device capable of reducing the transfer power required to transfer dust, downsizing a transfer means, saving power consumption, and reducing noise from the transfer means. The dust collecting device is provided with a dust take-in section having a rotary brush (3), and a dust collecting section (5) for collecting dust taken in from the dust take-in section. The dust collecting section (5) has a primary chamber (51) for storing dust combed up by the rotation of the rotary brush (3), and a secondary chamber (53) communicating with the primary chamber through a communication passage. An electric fan (9) is installed in order to intermittently transfer dust in the primary chamber (51) into the secondary chamber (53).

The invention discloses sprayed basalt fiber concrete and a side slope supporting surface layer construction method. The sprayed basalt fiber concrete per cubic meter comprises, by weight, 2-4 parts of basalt fibers, 365-410 parts of cement, 73-82 parts of superfine active mineral admixtures, 3-5 parts of cement based permeable crystal, 4-5 parts of concrete compound synergist, 13-19 parts of accelerating agents, 4-5 parts of water reducing agents, 900-925 parts of river sand, 785-815 parts of broken stones and 170-185 parts of water. Compared with the prior art, the sprayed concrete prepared by mixing the basalt fibers is good in consistency and workability, stable in volume and low in spraying rebound loss, tensile strength, crack resistance and frost resistance are remarkably improved, service life is prolonged, and service environments are improved.

The invention discloses a metal bipolar plate of a miniature fuel battery. The metal bipolar plate comprises an anode single-pole plate and a cathode single-pole plate having a same structure, the single-pole plate comprises an inlet end and an outlet end respectively positioned at two sides, and a flow path area positioned at a central section, the inlet end comprises a fuel inlet, a cooling medium inlet and an oxidizing agent inlet, the outlet end comprises a fuel outlet, a cooling medium outlet and an oxidizing agent outlet, a groove at a right side of the single-pole plate and a ridge forma right side channel of the single-pole plate, the right side channel of the anode single-pole plate is a fuel flow channel, the right side channel of the cathode single-pole plate is an oxidizing agent channel, the anode single-pole plate and the cathode single-pole plate are applied to form a cooling channel, and the oxidizing agent channel and the fuel flow channel are the snakelike flow channels. Three snakelike flow channels are arranged on the anode single-pole plate and the cathode single-pole plate, the gas conveying pressure of the bipolar plate is large, the drainage is good, the fuel concentration of the bipolar plate is uniform and consistent, the fuel utilization rate is increased, and the reaction efficiency of the fuel battery is high.

The invention provides a tangential and longitudinal axial flow roller butt-joint negative pressure airflow feeding device which comprises a tangential flow threshing separation device, a conical spiral feeding device, a conical flow guide cover assembly and a longitudinal axial flow threshing separation device. An area for containing a tangential roller is defined by a tangential flow concave grid assembly and a tangential flow top cover in the tangential flow threshing separation device. The two ends of a concave grid plate in the tangential flow concave grid assembly are each coaxially connected with a fixing arc plate. A feeding flat plate and two supporting arc plates connected with the two ends of the feeding flat plate are welded to the inlet of the concave grid plate along the tangent line. An arc punching cross connecting plate connected with the rear end of the concave grid plate is welded between the two fixing arc plates, is of a concave structure and is provided with a plurality of through holes. A concave grid baffle is welded to the joint between the arc punching cross connecting plate and a lower flow guide cover. The problem that tangential and longitudinal axial flow threshing separation device is prone to blockage at the large- feeding-amount position is avoided, and tangential flow and longitudinal axial flow mechanical conveying and airflow conveying performance is better exploited.

This invention relates to an underwater dredging head of rope cutter suction including: a flywheel, a drive rod, a rope, a breakwater and a mud-suction orifice, in which said rope passes through the edge of the flywheel, said mud-suction orifice is set on the frame of a suction pipeline of a dredge ship or its device, said drive rod is set on the suction pipeline of the suction orifice or the ship, said flywheel is set on the drive rod, which rotates to drive the flywheel to rotate, which drives the rope to rotate to cut submud underwater to strike out large and hard sundries and reduce soaked volume of them and jam of the orifice and mud cut by the rope forms mud water to enter into the mud-absorption pipeline via the orifice under the suction of the ship and a mud pump.