247 results about "Square cylinder" patented technology

The invention discloses a combined iron core type three-phase reactor and a winding device thereof, and belongs to the technical field of reactor processing, the combined iron core type three-phase reactor comprises a winding assembly, one side of the winding assembly is sequentially provided with a height limiting assembly, a core loading assembly and a switching assembly, and the same sides of the winding assembly, the height limiting assembly, the core loading assembly and the switching assembly are jointly provided with a pay-off assembly; the winding assembly comprises a first sliding table, a first mounting plate is mounted at the sliding end of the first sliding table, a winding motor is mounted on the side, close to the height limiting assembly, of the upper end of the first mounting plate, a positioning circular plate is mounted at the end of a driving shaft of the winding motor, and a plurality of winding positioning rods used for being matched with different core sections are arranged on the positioning circular plate. According to the bobbin assembly device, the switching assembly is used for installing the end of an enameled wire on the winding assembly before a new coil square barrel is wound, automatic winding and installation of bobbin components are achieved, bobbin assembly can be conducted on similar special-shaped core bodies, and the overall working efficiency is improved.

The present application belongs to the technical field of granulating device, and particularly relates to a carbon nanotube dry granulating device, which comprises a machine body, a feeding mechanism arranged at the upper port of the machine body, a cutting and guiding mechanism arranged between a rolling mechanism and a whole-grain mechanism, a guiding square cylinder fixedly connected below two supporting guide plates, a guiding cavity formed in the guiding square cylinder, wherein the upper port of the guiding cavity is located below the symmetrical rollers, a triangular distributing block is fixedly arranged in the lower port of the guiding square cylinder, a discharging cavity is formed between the two side slopes of the triangular distributing block and the side wall of the guiding cavity, at least two sliding grooves are formed in the left side wall of the guiding square cylinder and communicate with the guiding cavity, a sliding plate is slidingly arranged in each sliding groove, and a cutting knife is arranged on the right end surface of each sliding plate. The present application can improve the effect of the whole-grain mechanism on rolling and pressing the small pieces after cutting into granules, thereby improving the efficiency of processing and forming of the carbon nanotube in the dry granulating device.

This invention relates to a high-reliability ring main unit, comprising: an outer casing assembly, the outer casing assembly including an outer casing, a receiving cavity, a first communication channel, and a flow channel. The receiving cavity is formed on the inner side of the outer casing, and several first communication channels are recessed on one side of the inner side of the receiving cavity. Several flow channels are recessed on the inner bottom wall of the first communication channel, and the flow channels intersect with the horizontal plane. Through the use of a ventilation assembly and an exhaust assembly, outside air passes through a square cylinder, successively passing through a first sieve, a second absorbent cloth, and another second sieve, finally entering the receiving cavity. Dust in the air is blocked by the first sieve, and moisture in the air is removed by the second absorbent cloth, preventing moisture in the air from affecting the normal operation of the equipment inside the receiving cavity. Hot air in the receiving cavity is pushed out through the second exhaust channel, the first exhaust channel, and the intermediate cavity, thus cooling the equipment inside the receiving cavity.

The luggage with the external storage function comprises a luggage body, square cylinders are arranged on the outer wall of the luggage body and located on the two sides of the luggage body, square columns are arranged in the square cylinders in a sliding mode, one ends of the square columns are provided with connecting springs, and the other ends of the square columns are connected with the connecting springs. One end of each connecting spring is fixedly connected with the inner wall of the square cylinder, hanging holes are formed in the square columns, hanging rods are arranged in the hanging holes, storage boxes are arranged at the bottoms of the hanging rods, avoiding holes are formed in the two side faces of the square cylinder, and the hanging rods are located in the avoiding holes. A user can pull a pull ring to enable a hanging hole in a square column to be separated from a square cylinder, and at the moment, a hanging rod can be hung in the hanging hole, so that the storage box and the luggage box body are hung and placed, and the storage box and the luggage box body are convenient to take.

The utility model discloses a quick and uniform mortar stirring device for building construction, which relates to the field of building construction and comprises a tank body, a top cover is arranged at the top of the tank body, a stirring component is arranged at the bottom of the tank body, feeding pipes are connected to the left side and the right side of the top cover, two discharging pipes are connected to the bottom of the tank body, and electromagnetic valves are connected to the outer walls of the discharging pipes. A clamping groove is formed in the top of the tank body. Non-caked mortar raw materials are filtered through the filter sieve hopper, the caked mortar raw materials are located at the bottom of the filter sieve hopper, the electric telescopic rod is used for pulling the connecting plate, the connecting plate pulls the square rod, the square rod slides in the square cylinder, the square rod is used for pushing the grinding head, and the grinding head is driven by the motor to rotate. According to the mortar stirring device, the grinding head extends into the filter sieve hopper, the second motor is used for driving the grinding head to rotate, and the grinding head can be used for grinding and crushing caked mortar raw materials at the bottom of the filter sieve hopper, so that the mortar stirring efficiency and quality can be effectively improved.

The utility model relates to server base technical field discloses a spliced server base structure, including the placement board, the top fixedly connected with square cylinder no.

The utility model discloses a numerical control lathe precision detection device, which relates to the technical field of numerical control lathes and comprises an operation table, a fixed seat is fixedly arranged at one end of the top of the operation table, a movable seat is slidably arranged at the other end of the top of the operation table, and a circular ring is rotatably arranged on one side, close to the movable seat, of the fixed seat. A square cylinder is fixedly connected to the inner circle of the circular ring, a sliding column is slidably arranged at the end, away from the circular ring, of the square cylinder, a square plate is slidably connected to the interior of the square cylinder, a pressure sensor is fixedly connected to the face, back to the sliding column, of the square plate, and the pressure sensor abuts against the inner wall of the square cylinder. According to the precision detection device for the numerical control lathe, by arranging the square cylinder, the sliding column, the pressure sensor and other structures, multiple times of center calibration detection can be carried out on a cylindrical blank piece, the machining precision is improved, the cylindrical blank piece does not need to be taken down from the lathe, calibration can be carried out in multiple times of machining, and the working efficiency of the numerical control lathe can be improved.

The utility model discloses a high-flow continuous and stable cementing powder adding system for tailing filling. A plurality of flow-aiding gas discs which are uniformly distributed in the circumferential direction are mounted on a conical cylinder of an ash bin. An annular air supply pipe which is arranged on the periphery of the conical cylinder in a surrounding mode and used for being externally connected with a high-pressure moisture removal air source is connected with the air inlet end of each flow-aiding air disc. And the lower port of the conical cylinder is connected with a star-shaped feeder through a hydraulic electric flashboard. A conveying auger and a metering auger located below the conveying auger are arranged below the star-shaped feeder. And the lower end of the star-shaped feeder is connected with a conveying auger through a discharging square cylinder with a flaring structure. And a rubber hose is connected between the blanking pipe of the conveying auger and the receiving pipe of the metering auger. The adding system further comprises a front end sensor and two rear end sensors. By means of the airflow blowing effect and the effects of the star-shaped feeder and the conveying screw, large-flow uniform and stable adding of the cementing powder for filling is achieved, the problem that the cementing powder is arched in the ash bin can be well solved, and smooth discharging of the cementing powder from the ash bin is achieved.

The invention relates to the technical field of automobile part processing equipment, discloses a small-head oil hole detection device for connecting rod production, and aims to solve the problem that a hole wall detection result of a small-head oil hole is affected due to the fact that a detection rod is affected by external impurities. Through the arrangement of the blocking mechanism, during use, the cylinder and the square cylinder are arranged on the two sides of the small-head oil hole, then the detection table extends into the small-head oil hole, the detection operation is completed by utilizing the axial contact between the detection rod on the detection table and the inner wall of the small-head oil hole, and in the process, the cylinder and the square cylinder are pressed on the two side faces of the small-head oil hole, so that the detection efficiency is improved. Through the actions, the amount of external impurities entering the small-head oil hole is reduced, so that the hole wall detection result of the small-head oil hole is not easily influenced.

The invention provides a vehicle framework structure. In the vehicle frame structure, a bracket couples a side member and a cross member. And the side components are aluminum square cylinder components. The transverse component is an iron square cylinder component. The bracket is provided with an abutting wall and a pair of clamping flanges. The abutting wall abuts against a tube end portion of a vehicle width direction end of the cross member. The pair of clamping flanges extends from the abutting wall to the outer side of the width direction of the vehicle and clamps the side surface member in the vertical direction.

The utility model discloses a monitoring device for building foundation settlement, which relates to the technical field of foundation settlement monitoring and comprises a bottom plate, an upright post fixedly connected to the upper side of the bottom plate, a limiting piece fixedly connected to the outside of the upright post, a rotating sleeve rotationally connected to the outside of the limiting piece, and a gear ring fixedly connected to the outside of the rotating sleeve. A rotating mechanism is installed outside the stand column, a plurality of sets of annularly-arranged fixing rods are fixedly connected to the outer portion of the rotating sleeve, a connecting cylinder is fixedly connected to the tail end of each fixing rod, a fixing square cylinder is fixedly connected to the tail end of each connecting cylinder, and a monitoring mechanism is installed on the inner side of each fixing square cylinder. According to the device, a sliding rod is automatically driven to make contact with a foundation through a balancing weight, settlement data are directly read through a graduated scale on a fixed square cylinder, the monitoring process is greatly simplified, convenience is improved, and meanwhile the settlement data can be accurately measured in the mode that the telescopic length of a connecting cylinder is adjusted and a motor drives a gear and a gear ring to rotate in a meshed mode. Different monitoring points can be flexibly covered, and omnibearing monitoring of foundation settlement is realized.

The application relates to the field of crane technology and discloses a large-scale steel structure hydraulic lifting device which comprises a hydraulic support, a slide rail connected to one end of the hydraulic support, a steel frame connected to the lower end of the slide rail, a circular frame installed at the lower end of the steel frame, a hook connected to the lower end of the circular frame, a supporting device installed in the steel frame, a detection device connected to the lower end of the supporting device, a second fixing device installed at the lower end of the detection device and a first fixing device installed at one end of the detection device. The first magnet plate and the second magnet plate are driven to slide downwards by the square cylinder, so that the first magnet plate and the second magnet plate can contact the steel structure, the steel structure is magnetically adsorbed, when the steel structure shakes, the first magnet plate and the second magnet plate are magnetically adsorbed and fixed on the steel structure, the first slide column is used as the support, and the shaking of the steel structure is reduced.

The utility model discloses a junction box cover with a bunching function, which relates to the technical field of bunching of junction box covers, and comprises a box cover, the box cover is provided with a sliding groove, a sliding block and two first springs are arranged in the sliding groove, the sliding block is connected with a square seat, the square seat is provided with a limiting ring and a spring seat, the limiting ring is connected with a square cylinder, and the spring seat is connected with a spring. The square seat is connected with a fixing mechanism, the spring seat is connected with a second spring, the limiting ring is connected with a shifting rod, and the square seat is further provided with a limiting mechanism. By arranging the fixing mechanism, the deflector rod and the second spring, the wire bundling effect can be effectively improved, by arranging the limiting mechanism, a wire can penetrate through the fixing mechanism more conveniently, the wire bundling efficiency is improved, when the wire is pulled by external force, the protruding block drives the limiting ring and the deflector rod to stretch the second spring, and the wire bundling effect is improved. The elastic force of the second spring can reduce the impact force borne by the wire, part of the pulling force can be transmitted to the first spring, and the first spring buffers the pulling force borne by the wire.

The invention discloses a water conservancy and hydropower engineering construction slope protection excavation device which comprises an excavator body, a supporting frame is arranged above the excavator body, the two sides of the supporting frame are symmetrically and rotationally connected with first threaded rods, the first threaded rods are in threaded connection with a transverse frame, and the side face of the transverse frame is fixedly connected with a square cylinder. A second threaded rod can be controlled to rotate, a supporting column is driven to extrude a sliding block, then gas in a square barrel is triggered to push a rack to slide, an electric push block is driven through a gear and belt transmission to push a scraping plate out of a cutting groove in the side face of a pressing plate, automatic scraping operation is conducted on the surface of the pressing plate, and scraped soil directly falls into a soil collecting box to be treated in a unified mode. The process does not need manual intervention, sticky soil on the pressing plate can be removed in real time, the working face, making contact with slope soil, of the pressing plate is always kept flat, and the problems that due to the fact that the pressing plate is uneven, pressing force is uneven, and soil falls are solved fundamentally.

The invention belongs to the technical field of pavement slab seam measurement, and particularly relates to a tool for concrete pavement slab seam measurement, which comprises a measurement square cylinder, two clamping blocks are movably connected to the lower surface of the measurement square cylinder, and two limiting grooves matched with the clamping blocks are formed in the lower surface of the measurement square cylinder. The opposite sides of the two clamping blocks are fixedly connected with measuring plates, and the opposite sides of the two measuring plates are provided with measuring holes. The concrete pavement slab joint measuring tool not only has the functions of automatic measurement and measured data correction, but also has the function of automatically cleaning the to-be-measured area of the slab joint, manual tedious operation is not needed, the measurement error is reduced, the convenience and efficiency of slab joint measurement are improved, the labor intensity of workers is reduced, and the working efficiency is improved. The accuracy of measured data is also improved, the specific condition of the concrete pavement slab seam can be more accurately judged, and the use reliability of the measuring tool is improved.

The invention discloses an assembly type mounting frame for building electromechanical equipment, and relates to the technical field of mounting frames, the assembly type mounting frame comprises two square cylinders and two supporting rods corresponding to the two square cylinders respectively, the cross sections of the two supporting rods are square, the square cylinders are slidably arranged on the corresponding supporting rods in a sleeving mode, and the square cylinders are arranged on the square cylinders in a sleeving mode. The four side faces of the square barrel are each provided with an inclined opening communicating with the interior of the barrel, an inclined supporting rod is slidably inserted into each inclined opening, and a plurality of inclined grooves linearly distributed at equal intervals in the vertical direction are formed in the four side faces of the supporting rod. A plurality of inclined blocks which are linearly distributed at equal intervals in the inclined direction of the inclined supporting rod are fixed to the plate face of the inclined supporting rod, and the inclined supporting rod is connected with the inclined grooves in the corresponding side faces of the supporting rod in a meshed mode through the inclined blocks. In the dynamic process of adjusting the overall height of the machine frame, the inclined supporting force provided by the inclined supporting rod is dynamically adjusted in a relevance mode along with the change of the combined length of the supporting rod and the square barrel, and the structure stress requirement at the current height is met all the time.

The utility model discloses a height-adjustable iron stand bunk bed which comprises a lower bed board, an upper bed board is arranged above the lower bed board, an adjusting mechanism is arranged between the lower bed board and the upper bed board, and the adjusting mechanism comprises a first adjusting piece, a second adjusting piece and a transmission rod. The first adjusting part and the second adjusting part are arranged in the middles of the two sides between the lower bed board and the upper bed board respectively, the transmission rod is arranged between the first adjusting part and the second adjusting part, the first adjusting part and the second adjusting part are the same in internal structure, and the first adjusting part comprises a top box, an adjusting square cylinder and an adjusting column; the top box, the adjusting square cylinder and the adjusting column are sequentially arranged from top to bottom. The height of the double-layer bed with the iron stand can be adjusted, practicability is improved, and therefore the problems that when the double-layer bed with the iron stand is used, the height requirements of different users cannot be met, and installation limitation of a non-standard space cannot be met are solved.

The present application relates to cable cutting technical field, specifically is a kind of cable batch length cutting device, including vertical frame, shaft rod is rotationally arranged in the inside center position of vertical frame, fixed plate is fixedly installed along the circumferential direction of shaft rod at equal intervals on the outside of vertical frame, tensioning mechanism for equal-length pulling cable is arranged on fixed plate, discharging mechanism for cutting and discharging cable is jointly arranged on vertical frame and fixed plate, the present application uses electric sliding block to drive alignment square cylinder to determine the position of cable end, so that the end of cable is always located in the fixed position inside alignment square cylinder, so that the end of each cable to be cut is consistent, then the movement of electric sliding block can pull the end of cable to move synchronously, so as to determine the cutting length of cable, finally equal-length cutting of cable is carried out by cutting knife, thereby the precision of length cutting of cable is improved.

The utility model relates to the technical field of filters, in particular to a square cylinder type filter of an air purifier. A square barrel type filter of an air purifier comprises a filter body, the filter body comprises metal nets, filter glue, covered edges, a coarse filter screen and a filter element, the covered edges are arranged at the two ends of the filter body, the metal nets are arranged in the filter element, the metal nets are connected end to end to define a square barrel shape, the four corners of each metal net are in round corner transition, the coarse filter screen is arranged outside the filter element, and the filter glue is arranged on the filter body. And filter glue is coated inside the filter element. Compared with the prior art, the filtering area is increased in a limited space, the structural resistance of the filter is reduced, the air passing amount of the filter is increased, the filtering and purifying effects are improved, a product is shaped in a single-face glue injection mode, the strength is guaranteed through the metal net, the appearance is guaranteed and large-particle hair is filtered by additionally arranging the coarse filter net on the outer ring, and the service life of the product is prolonged. The service life is prolonged.

The utility model relates to the technical field of coal, in particular to a coal bed gas reservoir pulverized coal monitoring device which comprises a square cylinder, the square cylinder is communicated and fixed to a water inlet pipe of a pump, a first cylinder is communicated and fixed to the square cylinder, a first sealing plate is inserted into the first cylinder, and a guide pipe is arranged on the first sealing plate in a penetrating and sliding mode. A circular ring is fixed to the guide pipe in a penetrating mode, the circular ring makes contact with the first sealing plate, a monitoring probe and a controller are fixed to the two ends of the guide pipe respectively, a wire is fixed between the controller and the monitoring probe, the wire penetrates through the guide pipe, and the monitoring probe is inserted into the square barrel. When the device is used, the monitoring probe is used for monitoring the content of pulverized coal at the gas production port of the gas storage layer, so that a worker can timely find the situation that the content of the pulverized coal at the gas production port of the gas storage layer is increased suddenly and can timely process the situation, and the phenomenon that a gas production channel is disturbed and blocked can be avoided.

The utility model discloses an injection molding machine feeding mechanism with a safety protection structure, which belongs to the technical field of injection molding machines and comprises a screw conveyor, connecting support rods are mounted at two ends of the top of the outer wall of the screw conveyor, and a melting bin is mounted at one end, far away from the screw conveyor, of each connecting support rod. Concentric-square-shaped positioning grooves are formed in the top of the spiral conveyor and the bottom of the melting bin; a square cylinder is arranged at the bottom of the melting bin, a filter plate is arranged in the square cylinder, and a limiting groove is formed in one side of the filter plate; and a cavity is reserved in the outer wall of the square cylinder. According to the utility model, the square cylinder is arranged between the melting bin and the screw conveyor, and the filtering plate is arranged in the square cylinder, so that raw materials melted by the melting bin can be further filtered by the filtering plate and then enter the screw conveyor, and furthermore, the situation that part of parts which are difficult to melt enters the screw conveyor and damage parts such as an injection molding nozzle is avoided.

The invention relates to a round-to-square two-dimensional thrust vectoring nozzle with double ducts independently adjustable in area, and belongs to the technical field of aero-engines. The spray pipe comprises a round-to-square barrel, a main culvert and second culvert adjusting piece system, a heat insulation screen assembly and an actuating mechanism. A second culvert air flow channel with the round-square section transition is formed through the round-to-square barrel and the heat insulation screen, and main culvert air flow passes through a middle cavity defined by the heat insulation screen. A rocker arm-actuator cylinder mechanism is adopted to independently drive an outer duct adjusting piece to achieve second duct area adjustment, and a main duct adjusting piece achieves throat area, outlet area and thrust vector control. And the second low-temperature airflow cools the heat screen. According to the invention, the double-duct area can be independently adjusted, the circular-to-square cross section transition and binary vector function integration is realized, and the double-duct structure has the advantages of compact structure, good thermal protection performance and high adjustment precision.

The utility model relates to the technical field of plate supporting, and discloses an adjustable aluminum alloy plate supporting frame which comprises a steel frame, a bottom plate is fixedly installed on the outer side of the steel frame, a telescopic assembly is arranged on the outer side of the steel frame and comprises a long plate, and the long plate is fixedly installed on the outer side of the bottom plate. And a limiting plate is fixedly mounted on the outer side of the long plate. According to the adjustable aluminum alloy plate supporting frame, in order to make the device more convenient for subsequent machining or use operation, the telescopic assembly is arranged, the telescopic assembly is matched with multiple sets of long plates and limiting plates on the bottom plate, the sliding range of the electric sliding block is limited, the sliding normalization is guaranteed, the overall supporting area of the supporting plate connected with the electric sliding block is increased, and the supporting effect is better. The vertical supporting block carries an electric hydraulic rod, a tray plate is driven to move through a connecting plate at the piston end of the electric hydraulic rod, height adjustment can be achieved, meanwhile, multiple sets of telescopic rods are matched with a hollow square cylinder, and the structural stability is further enhanced.

A cover turning and conveying device for a wet tissue cover is arranged on a sticky cover conveying path of the wet tissue cover and comprises two clamping plates arranged side by side, a square cylinder sliding way, an annular belt wheel and a main belt wheel. The square cylinder slideway is sleeved into the center of the annular belt wheel and is fixed with the annular belt wheel into a whole, one end part of the clamping plate is provided with a large round hole, the annular belt wheel is rotationally sleeved between the large round holes, and the square cylinder slideway extends out of the large round hole; a small round hole is formed in the other end of each clamping plate, a motor is installed at the small round hole, a main belt wheel is connected with the output shaft between the two clamping plates, and a transmission belt is arranged between the main belt wheel and the annular belt wheel in a sleeving mode; according to the device, the annular belt wheel and the square barrel slide way can be driven by the main belt wheel through a belt to rotate by a circle at a high speed, and a wet tissue cover is instantly turned over to be located on the front face and slides out of the square barrel slide way to enter a conveying roller on the lower portion to be conveyed to the cover sticking procedure. The full-automatic cover turning and arranging device can adapt to the production speed of a cover sticking production line, and the labor cost is reduced.

The utility model relates to a dust-proof lifting and feeding device for starch pregelatinization emulsion, which is characterized in that a square barrel-shaped protective cover is arranged on the upper surface of a square bracket, a feeding notch is formed in the lower part of the side surface of the square barrel-shaped protective cover, a top cover is arranged at the upper end of the protective cover, and a fan corresponding to an air suction hole in the middle of the top cover is arranged in the middle of the top cover; a partition plate is arranged at the upper end opening of the protective cover, an air suction cavity is formed between the partition plate and the top cover, a plurality of round holes are evenly formed in the surface of the partition plate, a supporting cylinder is sleeved with the round holes, and a filter bag is connected to the lower end opening of the supporting cylinder in a sealed mode; according to the feeding device, negative pressure is generated in the protective cover through the fan, starch flying dust generated during feeding can be sucked into the protective cover under the action of the negative pressure, the flying dust is filtered down through the filter bag in the protective cover and attached to the surface of the filter bag, the flying dust is inhibited, the feeding dust pollution phenomenon is avoided, and the feeding efficiency is improved. And the phenomenon that flying dust is attached to the emulsion and is gelatinized and dried into a film-shaped surface impression to influence the product quality can be avoided.

The utility model belongs to a tree diameter at breast height and height surveying device, and particularly relates to the technical field of tree surveying, which comprises a machine body, a height measuring assembly is arranged on the outer top surface and the left end of the machine body, a diameter at breast height measuring assembly is arranged on the left end of the outer bottom surface of the machine body, and a grip is fixedly arranged on the right end of the outer bottom surface of the machine body. A square plate is fixedly connected to the outer bottom face of the grip, a clamping and fixing assembly is arranged on the outer wall of the left side of the square plate, a rope can be wound around and attached to a tree by a circle through the arranged positioning square cylinder and then is connected with a rope head in a clamped mode, then the rope is prevented from being automatically recycled, and therefore the situation that the rope head needs to be continuously pulled is avoided; and the workload of a user is reduced.

[Problem] The present invention addresses the problem that when manufacturing a bottomed rectangular cylindrical body consisting of two pairs of long sides and two pairs of short sides from a metal material, the height of an open end surface of the four sides cannot be set in an extrusion molding process. [Solution] The rectangular cylindrical metal body of the present invention is obtained by adjusting a metal material such that the cross-sectional area thereof is larger than the projected surface area of the product in a plan view, and extrusion molding the metal material.

The utility model discloses a novel industrial solid waste recycling treatment device which comprises a working table, a central square cylinder is welded to the middle of the working table, and a feeding hopper is welded to the top of the central square cylinder; according to the industrial waste shredding device, the two motors on the workbench are started to work, the two motors are promoted to drive the speed reducer to rotate through the transmission belt and the belt wheel respectively, the two shredding cutter shafts connected with the output shaft of the speed reducer through the coupler are made to rotate, and industrial waste fed by the feeding hopper is shredded by the two shredding cutter shafts in the center square cylinder; crushed industrial waste falls onto the screening plate and is separated by a first hollow structure on the surface of the screening plate, powder and slag substances penetrate through the screening plate and are discharged from the bottom of the central square cylinder, and metal materials or other fragment materials are discharged from the discharging nozzle under the action of gravity in the process. Electromagnets installed in barrier strips on the left side and the right side of the screening plate are started to work, so that fine metal waste in the crushed industrial waste is adsorbed.

The utility model relates to a cooperative bearing column bearing type double-wall square cylinder group bin. The upper frame beam and the lower frame beam are of a reinforced concrete structure formed by integral pouring and are used for connecting the square cylinder single bins and the supporting columns to form a collaborative bearing system, and a plurality of friction pendulum shock insulation supports are evenly distributed between the upper frame beam and the lower frame beam so that rigid connection can be changed into semi-flexible transition connection. The inner wall and the outer wall of the double-wall structure are connected together through a plurality of evenly-distributed connecting embedded columns to be borne on the upper frame beam to form an integrally-integrated bearing structure, the upper frame beam is used for cooperatively bearing the square cylinder single bins, the lower frame beam is used for cooperatively connecting the supporting columns, and therefore cooperative bearing of the upper frame beam is matched. The stress concentration effect caused by direct rigid contact of the silo wall and the supporting columns can be obviously relieved, the problems of eccentric stress and large local stress peak value caused by different gravity of each single square cylinder silo are solved, and it is ensured that the structural safety of the square cylinder group silo is higher, and the anti-seismic property is higher.

A steel structure square cylinder butt joint fixing device is characterized in that a square ring lining plate is arranged on the inner side face of an upper end opening of a base cylinder, the square ring lining plate protrudes out of the upper end opening of the base cylinder, a chamfer is arranged on the outer edge portion of the lower end of an upper cylinder, and a butt joint plane is formed between the inner edge of the chamfer and the inner edge of the lower end opening of the upper cylinder; the lower end of the upper column body is sleeved on the square ring lining plate in a matching manner, and the butt joint plane corresponds to the port surface of the upper column body; a lower positioning plate is arranged in the middle of the outer side face of the base column body in the length direction, and an upper positioning plate is arranged in the middle of the outer side face of the upper column body in the length direction. The square ring lining plate of the device plays a guiding and limiting role between the upper column body and the base column body, rapid and accurate butt joint of the upper column body and the base column body is facilitated, the chamfer and the square ring boss form a gap with the cross section in the shape of a right trapezoid, more welding materials can be welded into the gap with the irregular cross section, better fusion of the welding materials can be promoted, and the welding quality is improved. And the connection firmness and the butt joint construction efficiency of the upper column body and the base column body are effectively improved.