34results about How to "Guaranteed Screening" patented technology

The invention discloses a shakeout machine facilitating recycling treatment of old sand and scrap iron and shakeout. The shakeout machine comprises crushing devices and a screening device, wherein thecrushing devices comprise first rotary motors and crushing rollers arranged at one output ends of the rotary motors. The screening device comprises a screening plate which is formed by two electromagnetic suction plates, baffles are arranged on the two sides of the screening plate, second rotating motors are arranged on the baffles, sand guide rollers are arranged at the output ends of the secondrotary motors, and sand collecting boxes are arranged at the bottom ends of the two electromagnetic suction plates of the screening plate. The device can be used for carrying out crushing treatment on the old sand generated in the shakeout process of casting, so that the falling of the old sand is facilitated, and the old sand is prevented from being pasted on the inner wall of a sand collectinghopper or blocking a sand outlet, and meanwhile, the scrap iron in the old sand can be screened and separated, so that the old sand and the scrap iron can be conveniently recycled and used, and the utilization of casting material resources is optimized.

The invention discloses a grain diameter screening type grinding device. The grain diameter screening type grinding device comprises a rack, a grinding unit, a chain wheel and a motor, wherein the grinding unit comprises a first roller, a second roller and a third roller which are horizontally mounted on the rack; the rack is further provided with adjusting hand wheels; the adjusting hand wheels are in compression joint to one ends of the rollers and the other ends of the rollers are connected with the chain wheel; the motor is connected to the chain wheel. With the adoption of the manner, the grain diameter screening type grinding device can be used for adjusting and grinding grain diameters of materials, and the control and screening of the grain diameters of the materials are guaranteed, so that the grain diameters of the materials can reach screening grades and the materials can be sufficiently and effectively grinded.

The invention provides a reagent for detecting a monkeypox virus through isothermal amplification, which comprises a standard substance for detecting the monkeypox virus and primers, wherein the standard substance is a recombinant plasmid vector obtained by cloning an artificially synthesized gene segment into a pGSI plasmid; the base sequence of the gene segment is shown as SEQ ID NO:1; and the primers include an outer primer F3, an outer primer B3, an inner primer FIP and an inner primer BIP. The invention also provides a method for detecting a monkeypox virus through isothermal amplification, which can quickly and accurately detect the monkeypox virus by using the reagent.

The invention provides a method for preparing recycled concrete. The preparation and regeneration of concrete is completed by the cooperation of the installation frame group, the dust removal device, the spreading device, the sieving device and the material guide cover; The dust mixed in the concrete blocks is difficult to clean, which seriously affects the cohesiveness of the concrete blocks; and the size of the concrete blocks is different, and the current screening method is difficult to process the concrete blocks of different sizes, which makes it difficult to screen a large number of concrete blocks at the same time. Guarantee its screening effect and other problems.

The invention discloses a multifunctional potato woven bag, which comprises a bag body, the bag body is formed by compressing and bonding multiple layers of bags, several leak holes are opened around the bottom of the bag body, and the inner wall of the leak hole passes through An iron ring is fixedly pasted and connected, and the bottom of the bag body is provided with a stabilizing device, and the stabilizing device is fixed in the interlayer of the bag body through sewing, and a group of hand straps are fixed on the left and right sides of the bag body, and the bag body is There is a bag opening on the side, and a sealing strip is provided on the lower side of the pocket opening, and the sealing strip one moves through the interlayer of the bag body on the lower side of the pocket opening, and a sealing strip is provided on the bag body on the lower side of the sealing strip Two, and the two sealing strips run through the interlayer of the bag body on the lower side of the bag mouth, and the inside of the bag body is provided with a sponge protective layer one. The woven bag of the present invention not only guarantees the colorless, odorless and non-toxic environmental protection concept in terms of materials, but also enhances fast closing, size classification, impurity screening and perfect bag body protection in terms of functions.

The invention provides an impurity removing vibrating screen for peony seeds, which comprises a rack, a driving motor, a screen body, a screen net and a vibrator. The screen net comprises an upper screen net body and a lower screen net body. The upper screen net body is composed of a left half net body and a right half net body which form an included angle of 176 degrees, and is provided with a plurality of first through holes and a plurality of transverse corrugated protrusions. The diameter of the first through holes is 3 mm larger than the diameter of the mature peony seeds. The height and the thickness of all the transverse corrugated protrusions are 3 mm. The lower screen net body is provided with second through holes of which the diameter is 2 mm. The screen body is provided with a front rotating shaft and a back rotating shaft. A transmission mechanism is arranged between the front rotating shaft and the back rotating shaft. Two sets of material spreading and flow guiding devices are arranged on the transmission mechanism with each comprising a material spreading plate composed of a left push plate and a right push plate which form an included angle of 150 degrees and a flow guiding plate composed of a left guide plate and a right guide plate which form an included angle of 150 degrees. The bottoms of the material spreading plates and the bottoms of the flow guiding plates are matched with the top surface of the upper screen net body in shape. The distance between the bottoms of the material spreading plates and the top surface of the upper screen net body as well as the distance between the bottoms of the flow guiding plates and the top surface of the upper screen net body are 12 mm. The impurity removing rate can be reached only by screening the peony seeds for one time, and thus the production efficiency is greatly improved.

An electronic fruit sorter comprises a transmission mechanism, a hooper lifting device, a fruit arranging device and a control system, wherein the hopper lifting device is connected with the fruit arranging device, a primary sorting device and a fine sorting device in sequence, a sensing electronic scale is arranged on the primary sorting device, a fruit beating device and a fruit recycling device are oppositely arranged on two sides of the fine sorting device,a fruit plate correction device is arranged at the tail part of the fine sorting device, a cycling chain is arranged on the primary sorting device and the fine sorting device, the cycling chain is in transmission connection with a transmission mechanism with a variable-frequency governor, a fruit plate is arranged on the cycling chain, and the sensing electronic scale, the fruit beating device and the variable-frequency governor are all electrically connected with a control system. The electronic fruit sorter provided by the invention has the advantages that the structure is compact, the manufacturing cost is low, weighting and sorting accuracies are high, and the degree of automation is high; accurate screening can be performed; errors are fewer.

The invention provides a cell separation chip based on the silicon structural on an insulator, which is composed of two layers combined mutually, wherein the first layer is a path layer, and the second layer is a cover plate layer. A micro-structure is formed in the path layer through engraving a groove on SOI silicon chip, the path layer is provided with a micro channel, a liquid storage tank, a fiber optic groove and a micro electrode couple structure, and the liquid storage tank on the path layer is used for sieving the former and the later sample liquids and storing sheath flow liquid; the micro channel is unimpeded, and is used for sample (cell suspension or solution) flow; fiber optic provides an optical detecting circuit; the micro electrode couple is used for realizing cell sieving. An injection port and a sample delivery port on the cover plate layer are connected with an external pipe. The information of the cell volume can be obtained by fiber optic for distinguishing whether the cell is a fused cell or not, alternating current photo-electric signals are applied on the micro electrode couple correspondingly, deflection is caused on cells, thus the cell separation is realized. The electric field is adopted by the chip for performing non-contact sieving and separating operation, thus the survival rate of live cells is enhanced, the structure is simple, the process is convenient and the cost is low.

The invention discloses an automatic sieving device for NdFeB magnetic powder and an automatic sieving method thereof. The automatic sieving device includes a sieving bucket, a dispersing mechanism, a shifting mechanism, a collecting mechanism, a detecting mechanism and a controller. The dispersing mechanism includes a feeding pipe, a rotating cylinder, a cutting assembly, and a driving assembly. The offset mechanism includes a protective plate and a plurality of magnets. . The detection mechanism is used to detect the collection amount of NdFeB magnetic powder located in the collection barrel 1 and the collection barrel 2. The controller is used to adjust the rotational speed of the rotating drum through the driving assembly according to the specific gravity of the block powder group in the unit volume of NdFeB magnetic powder, referring to the data correspondence in the preset specific gravity-rotational speed comparison table. The invention improves the screening efficiency of the NdFeB magnetic powder, and chops the agglomerated NdFeB magnetic powder, thereby improving the screening effect and ensuring the screening quality and purity of the NdFeB magnetic powder.

The invention provides a multi-stage internal circulation system for realizing grinding of semi-finished powder, which comprises a first screening module and a second screening module, wherein three discharging ends of the first screening module are respectively communicated with a finished product warehousing module, a roller press module and a cement grinding mill module, and the discharging end of the roller press module is communicated with the feeding end of the first screening module; and the discharging end of the cement grinding module is communicated with the feeding end of the second screening module, and the two discharging ends of the second screening module are communicated with the feeding end of the cement grinding module and the feeding end of the finished product warehousing module. According to the invention, through combination of various modules, the technical problems that an existing powder grinding system does not have the multi-stage separation powder separation function, and finished products (powder with qualified particle sizes) and non-finished products (powder with qualified particle sizes) are simply separated at a time are effectively solved.

The invention discloses a simple wood shaving separating device comprising a machine cabinet, a first screening chamber, a second screening chamber, a first material storage box, a first dispersing device, a second dispersing device and a motor. The first material storage box is arranged above the machine cabinet. A feed hopper is arranged on the first material storage box. A first discharge plate is arranged below the first material storage box and is matched with the first dispersing device. A rotating plate is arranged on the first dispersing device and provided with multiple fan-shaped discharge grooves. The first dispersing device communicates with the first screening chamber. The side wall of the first screening chamber is provided with a first air blower and a first air outlet. The second screening chamber is arranged below the second material storage box. The structural arrangement of the second screening chamber is the same as that of the first screening chamber. Good-quality wood shavings can be separated out from burrs, burls and impurities, pure wood shavings are obtained, and quality of trays is ensured.

The invention discloses a metal powder screening machine for additive manufacturing, which includes a bottom plate, a support rod and a movable plate; the bottom plate: supporting legs are arranged at four corners of the lower surface, and two fixed plates are respectively installed at the left and right ends of the upper surface of the bottom plate, And the front and rear ends of the upper surface of the fixed plate are respectively provided with vibrating motors, a fixed frame is arranged between the opposite surfaces of the vibrating motors on both sides, and the upper end of the fixed frame is provided with a sieve plate, and the upper surface of the fixed frame is provided with a sieve plate. The sieve hole corresponds to the diversion hole, and the front end of the sieve plate is handed over with a side baffle and a vibrating sieve plate, which can automatically sieve the material and reduce the manual operation steps, so that the screening efficiency is higher, and it can Clean the screen to avoid screen clogging and affect the screening efficiency of the material. At the same time, the equipment can stir the material when screening the material to ensure that the material can fall evenly during screening and avoid material accumulation that affects the screening efficiency.