15results about How to "Increase the screening area" patented technology

The invention provides a material screening device and a screening method thereof, and belongs to the technical field of material screening, the material screening device comprises a rack, a drum screen and a driving assembly, the drum wall of the drum screen is provided with multiple stages of first screening holes with different hole diameters to form a multi-stage screening area, and an auxiliary screening device is fixedly installed in the screening area; the auxiliary screening device comprises an arc-shaped plate, a screening plate and a connecting plate which are connected in sequence; the screening plate is provided with multiple stages of second screening holes, and the first screening holes and the second screening holes in the same stage of screening area are equal in hole diameter. An inner rotary drum is installed in the rotary screen, and a top plate is fixedly installed on the inner rotary drum and can make contact with the connecting plate. According to the screening plate, the screening area of the screening area is increased, if materials in the grade of screening holes cannot pass through the first screening holes, the materials can pass through the second screening holes of the screening plate, the screening accuracy is improved, the screening plate can deform, blocking of the second screening holes by the materials can be reduced, and dispersion of the materials making contact with the screening plate is facilitated.

The invention discloses an efficient pretreatment system and method for kitchen waste, and the pretreatment system comprises a material receiving and conveying unit, a first-stage hydraulic pulping and sorting unit, a second-stage hydraulic pulping and sorting unit, a solid-liquid separation unit, a desanding unit, an oil-water separation unit and an impurity conveying unit. According to the system, kitchen waste can be efficiently crushed into fine slurry through the two-stage hydraulic pulping and sorting unit, the pulping effect and the impurity removal rate are improved, organic matter loss is reduced, the fine slurry is subjected to deslagging and refining through the solid-liquid separation unit and the sand removal unit in sequence, follow-up equipment blockage or damage can be avoided, the operation safety of the system is improved, and the service life of the system is prolonged. According to the system, solid-liquid separation and oil-water separation of the kitchen waste can be effectively realized, so that convenience is provided for subsequent resource utilization, and the resource utilization efficiency is improved; when the system is applied to kitchen waste treatment, the pulping effect can be improved, follow-up treatment is facilitated, the follow-up treatment process is simplified, and the kitchen waste treatment speed and efficiency are improved.

The utility model relates to the technical field of silica sand screening, in particular to a silica sand screening device which comprises a box body. The sealing plate is connected to the inlet of the box body; the feeding hole is formed in the sealing plate; the flattening assembly is arranged on the sealing plate; the partition plate is fixedly connected to the top of the inner wall of the box body; the first sieve plate is used for conducting primary sieving on the silica sand; the sieve plate II is used for carrying out secondary sieving on the silica sand; the connecting rod is fixedly connected to the bottom of the sieve plate I and the top of the sieve plate II; the discharging opening is formed in the positions, corresponding to the first sieve plate and the second sieve plate, of the box body; the material guide plate is connected to the discharge hole in a sliding manner; the electric push rod is fixedly mounted on the outer side of the box body; and the vibration motor is mounted on the box body, in this way, the possibility that a large amount of dust flies around in the silica sand putting process is reduced, silica sand accumulated at a certain position can be evenly spread, and the screening efficiency of the silica sand is improved.

The invention provides precoated sand crushing and screening equipment, belongs to the technical field of crushing and screening, and solves the problem of incomplete crushing of existing raw materials. The precoated sand crushing and screening equipment comprises a support, a crushing mechanism, a rotating mechanism, a feeding mechanism, a raw material storage bin, a collecting box, a screening charging barrel assembly and a feeding hopper assembly. The crushing mechanism and the rotating mechanism are fixed on the base; the middle part of the rotating mechanism rotationally sleeves the outer side of the crushing mechanism; the number of the screening material barrel assemblies is two, the screening material barrel assemblies are arranged on the two sides of the rotating mechanism correspondingly, and the feeding hopper assembly is installed on one screening material barrel assembly. The discharging end of the raw material storage bin is connected with the feeding end of the feeding mechanism, and the discharging end of the feeding mechanism is located above the rotating mechanism and corresponds to the feeding hopper assembly; and the collecting box is fixed on the base. Materials can be machined for multiple times, the machining precision is improved, and raw material waste is avoided.

The utility model provides a screen anti-disassembly structure of a POS machine, which relates to the technical field of financial equipment, and comprises a POS main body, the top of the POS main body is provided with a screen, the top of the POS main body is connected with a fixed shell in an adhesive manner, the top of the POS main body is fixedly provided with the screen, and the bottom end of the side surface of the screen is fixedly provided with a screen wing. In the prior art, the technology development is faster and faster, a POS can gradually use a screen to realize and control most functions, the POS needs to be supervised to a greater extent, and once lawbreakers detach the screen of the POS, install an inductor in the POS and monitor transaction information of the user, protection on personal information of the user is lost, and economic loss is caused to the user. As the shell of the POS machine is generally made of a high polymer material, lead sealing is difficult to use like an electronic scale, the lead sealing can greatly increase the dead weight of the POS machine, a large amount of physical power is consumed when a user holds the POS machine for use, and the user experience is reduced.

This invention relates to the field of lithium battery recycling technology, specifically to a solid hazardous waste treatment device. The device includes a frame and a screening mechanism. A material conveying mechanism and a guide plate are mounted on the frame, with the guide plate positioned above the conveying mechanism. The screening mechanism includes a rotating disk and a notched annular magnet. The rotating disk is rotatably mounted on the frame, with its end face abutting the guide plate. The annular magnet is disposed inside the rotating disk and can rotate relative to it. When solid hazardous waste passes through the rotating disk, magnetic substances are adsorbed onto it. When the rotating disk rotates to the notch of the annular magnet, the magnetic substances fall onto the guide plate and move to the recycling area. By placing the notched annular magnet inside the rotating disk, the disk can continuously adsorb magnetic substances, reducing the possibility of magnetic substances remaining in the solid hazardous waste and improving the recycling efficiency of magnetic substances.

The utility model belongs to the technical field of capsule conveying, and relates to a pneumatic soft capsule conveying device which comprises a feeding hopper arranged on a supporting frame, the feeding hopper is communicated with a vibration screening assembly, the vibration screening assembly and a pneumatic conveying system are installed in the supporting frame, the vibration screening assembly is respectively communicated with a material guiding slope and a circulation groove, and the circulation groove is communicated with a waste box. A discharging pipe is arranged at the lowest point of the material guiding slope, the pneumatic conveying system is communicated with the circulating groove and the discharging pipe, and a discharging roller is arranged in the discharging pipe. The soft capsules are screened through the vibration screening assembly, wizened and shrunk soft capsules are separated from normal soft capsules, the number of unqualified products in follow-up treatment is reduced, the time needed by manual sorting is shortened, the unqualified soft capsules and the normal soft capsules are pneumatically conveyed through the pneumatic conveying system, and the sorting efficiency is improved. The accumulation of waste materials in a production field is avoided, the cleanliness of the production environment is kept, and meanwhile, the damage risk of normal soft capsules in the conveying process is also reduced.

This utility model relates to a sieving device for removing powder from silicon material, comprising: an automatic feeder at the inlet end of the sieving device; the sieving device includes a fixed frame, a sieving frame, and a vibrating motor; tracks for vibrating the sieving frame are provided on both sides of the fixed frame, and the two sides of the sieving frame are slidably connected to the tracks; the vibrating motor drives the sieving frame to vibrate, thereby achieving the sieving of powder; the utility model, by allowing the two sides of the sieving frame to be slidably connected to the tracks, makes the sieving frame stable during vibration, facilitating maintenance and replacement, and also improving the stability of sieving.

The utility model discloses a constructional engineering sand screening device, which relates to the technical field of constructional engineering, and comprises a support frame, the bottom of the inner cavity of the support frame is fixedly connected with a material guide assembly, the upper surface of the material guide assembly is lapped with a sand screening barrel, and the lower part of the outer wall of the sand screening barrel is clamped with the inner wall of the upper part of the support frame. An inner cavity of the sand screening barrel is fixedly connected with an annular fixing plate, the inner wall of the annular fixing plate is slidably connected with a sand screening auxiliary assembly, and the sand screening auxiliary assembly comprises an annular sliding rail. According to the sand screening device for constructional engineering, under the action of a motor, a bevel gear, an annular bevel gear, an annular sliding rail and an annular fixing plate, a stirring brush rotates and moves along the inner wall of a sand screening net frame under the action of two connecting blocks; and therefore, the sand screening net frame can be cleaned while the grit in the inner cavity of the sand screening net frame is stirred and screened, and the screening efficiency is improved while blockage is prevented.

The utility model relates to a sulbactam acid product crushing and screening device, which is characterized in that a screen plate is a conical screen plate, and medicinal powder can slide downwards from the conical top of the conical screen plate under the action of self weight and a vibration motor, so that the medicinal powder is dispersed on the upper surface of the conical screen plate for screening, on one hand, the conical screen plate increases the screening area compared with a flat plate; on the other hand, screen holes are not prone to being blocked. When the screen plate needs to be cleaned, the draught fan is started, airflow is led to sequentially pass through the filter, the draught fan, the flexible hose and the longitudinal ventilation pipeline and is sprayed to the conical screen plate, namely the screen plate, through the air spraying opening, blocked screen holes are dredged through the airflow, in the process, the motor is started, the air spraying opening is driven to rotate around the center line of the screen plate through the driving gear and the driven gear ring, and the screen plate is cleaned. Therefore, the purpose of comprehensively cleaning the screen plate is achieved.

This invention provides a device and method for separating tobacco scraps and recovering tobacco shreds in the cigarette manufacturing process. The tobacco scraps are fed into a primary vibrating screen via an elevator. "Hard, piercing" scraps are captured by an orthogonal curved screen plate and cylindrical screening holes with alternating dot matrix, separating tobacco dust and scraps with a diameter less than d1. The remaining material is fed into a secondary vibrating screen, where curved guide strips, a size-controlled screen plate, screening holes, separation holes, and a separation surface control the separation of hard scraps with a length greater than d2 and poor plasticity. Flexible tobacco shreds pass sequentially through the screening holes, separation holes, and separation surface, and are finally fed into a tobacco collection box. This invention provides high loosening force, screening efficiency, and low breakage rate for tobacco scraps, and accurately separates scraps from tobacco scraps, improving the recovery rate and quality of tobacco shreds.

The invention discloses a finished decorative diamond screening device easy to adjust, and belongs to the technical field of screening. Comprising a feeding hopper and a screening machine, the screening machine comprises a base, a screening disc fixing frame, a plurality of spring vibration pieces, a vibration motor, a plurality of layers of rectangular screening discs, a plurality of discharging grooves, a fixing structure and a circular screening disc, the multiple discharging grooves are vertically arranged side by side and staggered, and the rectangular screening discs are obliquely arranged downwards from front to back and provided with openings in the rear ends; the feeding hopper is located over the front portion of the rectangular sieve tray on the top layer, and the sieve mesh hole diameters of the rectangular sieve trays are reduced layer by layer from top to bottom. The feed hopper can be moved away from the front part of the screening machine; the circular sieve tray is positioned under the feed hopper, and the sieve mesh aperture of the circular sieve tray is greater than that of the rectangular sieve tray on the top layer; the sieve tray fixing frame is a rectangular groove and is obliquely arranged downwards from front to back, the front side of the sieve tray fixing frame is open, and the rear side of the sieve tray fixing frame is closed. The fixing structure is of a frame structure, can be adjusted up and down in the sieve tray fixing frame, can be taken out from the front side of the sieve tray fixing frame, and abuts against the upper sides of the left side and the right side of the rectangular sieve tray on the top layer.

The utility model relates to the technical field of honey processing production equipment, and provides honey extraction processing production equipment which comprises a box body, one side of the box body is fixedly connected with an installation frame, the top end of the box body is fixedly connected with a feeding hopper, and a vibrating screen assembly is arranged on the upper portion in the box body. A material guide pipe is fixedly connected to the lower part in the box body, a reaction kettle is fixedly connected to the bottom end of the box body, supporting columns are fixedly connected to four corners of the bottom end of the box body, a stirring and wall scraping assembly is arranged in the reaction kettle, a shell is fixedly connected to the bottom end of the reaction kettle, and a discharge pipe is mounted on one side of the reaction kettle. According to the technical scheme, honey is filtered through the vibrating screen assembly, and the problem that when honey is directly filtered through a filtering layer, filtering holes are possibly blocked by solids, and consequently the processing efficiency is reduced is solved.

The utility model discloses a medicine particle filtering device which comprises a supporting frame, a screening and filtering device is arranged at the upper end of the supporting frame, a collecting device is arranged at the right lower end of the screening and filtering device, connecting devices are arranged at the four corners of the screening and filtering device and fixedly connected with the supporting frame, and the screening and filtering device comprises a vibration machine. One side end of the vibration machine is fixedly connected with a fixing frame, the two sides of the fixing frame are fixedly connected with a material carrying box body, the upper end of the material carrying box body is provided with a material screening disc assembly, and one side end of the material carrying box body is provided with a collecting opening; the product has the advantages that the filtering and screening efficiency is improved, the first screening disc and the second screening disc are arranged in an up-and-down stepped mode, the screening area is increased, the filtering and screening efficiency is improved, the treatment process is quicker and more efficient, and screening and filtering operation is accurate; more accurate screening and filtering operation can be realized, and the purity and the quality of a product are improved.

The application discloses a kind of stirring mills of heterodirectional stirring, including grinding cylinder, feeding port, discharge port, mill air inlet, mill air outlet, stirring shaft, stirrer, driving device, separation device and cooling device;Grinding cylinder is close to the stirrer on the stirring shaft and is set in feeding end, and separation device is set on the stirring shaft close to discharge end;Cooling device is arranged on the periphery of grinding cylinder;Stirrer is divided into forward stirrer and reverse stirrer, and forward stirrer and reverse stirrer are evenly arranged in sequence along the stirring shaft, and forward stirrer is fixed on the stirring shaft, and reverse stirrer is installed on the stirring shaft by coaxial direction-changing transmission mechanism, so that forward and reverse stirrers are rotated in different directions under the action of stirring shaft and coaxial direction-changing transmission mechanism;The separation device is a hollow hemispherical structure, and is a hole distance adjustable type separation device.The application can greatly improve the grinding efficiency of dry method stirring mill, flexibly control the fineness of product from mill, and improve the reliability and stability of equipment.