77results about How to "Reduce routine maintenance" patented technology

The invention discloses a crane steel wire rope anti-swing system. The crane steel wire rope anti-swing system comprises a motor, a reducer, a brake and a winding drum, which are mounted on a trolley frame and sequentially connected, wherein the lower parts of hoist ropes are twisted on a lower pulley block on an upper sling rack; the crane steel wire rope anti-swing system is characterized in that the eight hoist ropes twisted on the winding drum pass through an upper pulley block and a steering wheel, and steel wire rope lantern rings at the ends of the hoist ropes are respectively connected with piston rods of eight hydraulic cylinders which are symmetrically and uniformly fixed on the four sides of the trolley frame; the eight hydraulic cylinders are divided into two groups; every four hydraulic cylinder blocks are connected in series through hydraulic cylinder connecting pipelines. With the adoption of the technical scheme, the crane steel wire rope anti-swing system disclosed by the invention is simple in structure, the anti-swing effects of the steel wire ropes are obvious, the service life of the steel wire rope is effectively prolonged, and conveniences are brought to routine maintenance and repair of the equipment; the steel wire ropes are twisted in a multi-magnification manner, and the magnification factor is two, so that the pull of the steel wire ropes is only half of that in the prior art, and the torque of the winding drum can be reduced. Therefore, the specification of the reducer can be reduced, and the manufacturing cost can be lowered.

This invention discloses a winded motor suitable to large torque starting, which comprises stator and rotor. The torque self-adapting winded motor cascades rotor coil circuit pre-set when starting. When rotor achieves the limit or set rotation speed, the centrifugal controller automatically gradually eliminates the resistance from rotor circuit to achieve the large torque starting. When motor load increases and speed reduces, the centrifugal automatically cascades the proper resistance into the rotor to increase torque.

The invention relates to a circulating fluidized bed hot-water boiler free of abrasion and corrosion, and relates to a circulating fluidized bed hot-water boiler. The circulating fluidized bed hot-water boiler solves the problem that pipe burst is generated because the heated surface of a boiler is reduced in thickness by suffering from the abrasion and the corrosion since fuel coal generates a high-temperature flue gas when being combusted in a furnace body, the flue gas contains sulfides, high-temperature high-pressure fuel particles and dust and the flue gas generate great impact accompanied by invasion, namely high-temperature oxidation, fly ash erosion and low-temperature dew-point corrosion, on the heated surface of a boiler in a boiler body in the using process of the traditional high-capacity circulating fluidized bed hot-water boiler. The circulating fluidized bed hot-water boiler free of abrasion and corrosion comprises a hearth, a water-cooled wall, a flue, a coal economizer cladding tube, a coal economizer, an air preheater, a plurality of pins, a plurality of clasp nails, a plurality of steel grids, composite material refractory concrete and an anti-abrasion cover. The circulating fluidized bed hot-water boiler disclosed by the invention is used for industrial and agricultural heating and urban centralized heating.

The invention provides a sectional tube nest cooling device in a decomposing tank. The sectional tube nest cooling device is composed of multiple sections of cooling tube nests arranged in the decomposing tank, each decomposing tank is divided into multiple sections of heat exchange area from top to bottom, a section of cooling tube nest is arranged in each heat exchange area, and all sections ofcooling tube nests in the same decomposing tank are in parallel connection; each section of cooling tube nest is constituted by an upper annular pipe, a lower annular pipe and a tube nest cluster between the upper annular pipe and lower annular pipe, and the tube nest cluster is constituted by several vertical pipes parallel to the axis of the decomposing tank; water inlets of all sections of cooling tube nests are all communicated with a water inlet main pipe, and water outlets of all sections of cooling tube nests are all communicated with a water return main pipe. Decomposing slurry is directly cooled through sectional tube nest cooling devices in the decomposing tanks, the cooling procedure outside the tank is replaced, equipment investment and running cost are saved, and meanwhile, the work of the operating amount of workers and daily maintenance is reduced.

The invention discloses a connecting structure of an oil cylinder support base and a pin roll as well as a mechanical device. The connecting structure comprises a movable arm, a bucket rod oil cylinder, a small-cavity steel pipe, a flange, a bolt, a pin roll, a gasket, a small-cavity rubber tube, a large-cavity rubber tube, a limiting plate, a positioning bolt and an O-shaped sealing ring, wherein the bucket rod oil cylinder is connected with the pin roll; the pin roll is connected with the limiting plate; the positioning bolt is connected with the limiting plate; each of the two ends of the pin roll has two bolt installation holes; the small-cavity rubber tube and the large-cavity rubber tube are respectively arranged at the two ends of the pin roll; two inner holes are respectively vertically formed inside the pin roll; an oil slot is machined outside the pin roll; the inner holes are communicated with the oil slot; the oil slot is sealed by the O-shaped sealing ring; two connecting holes are formed in the oil cylinder support base; four small holes are formed in the surface of the oil cylinder support base; the small holes are connected with the small-cavity steel pipe. The connecting structure for the oil cylinder support base and the pin roll can be used for enabling the pin roll and the oil cylinder to have self-lubrication, so that the turning ability becomes better, and therefore, daily maintenance by coating the lubricating oil is cancelled; the rubber tubes do not move with the oil cylinder, so that the service lives of the rubber tubes are prolonged; the pin roll and the oil cylinder are compact in structure, convenient to maintain and attractive in appearance.

A cyclonic chiller-separator, including a vertically oriented treatment tower defining an interior space and having an exhaust inlet disposed in an upper portion, and a chimney with an exhaust outlet; an exhaust stream conduit in fluid communication with said interior volume of said treatment tower through said exhaust inlet, wherein said exhaust inlet is configured to induce cyclonic fluid motion in an exhaust stream entering said interior volume; a coolant water source; and a plurality of nozzles disposed about interior walls of said treatment tower and in fluid communication with said coolant water source for spraying cooling water into said interior volume above and into an exhaust stream introduced into said interior volume so as to cool, condense, and precipitate volatile organic compounds and organic acids, and to entrain and remove particulates from the exhaust stream.

The invention discloses an integral water conveying pump station. The pump station comprises a well barrel with a concrete base balance weight, wherein the well barrel is arranged below the ground and divided into a pump station electric control chamber and a pump station water chamber; a submersible sewage pump, a water feeding pipe, a water discharging pipe, a distribution cabinet, a guide rail for repair, a climbing ladder, a hydraulic controller and other parts are mounted in the pump station water chamber and the pump station electric chamber, so as to form an integral structure for the water conveying pump station. The invention further discloses a mounting method of the integral water conveying pump station. According to the method, a mounting hole of the well barrel is formed beside a water source; all parts mounted in the well barrel are buried underground at a time; therefore, a water pump station can be simply and quickly mounted; the field used is reduced; the integral structure greatly reduces the construction cycle; the construction cost can be reduced while the construction time is saved; the daily maintenance and repair can be reduced; the delay of irrigating due to repair can be avoided.

The invention provides an installation method of a water injection pump station and a corresponding motor and water injection pump integrated unit. The corresponding motor and water injection pump integrated unit comprises a motor and a water injection pump which are connected, the connecting end of the water injection pump is provided with an end cover and an outwards extending water injection pump shaft, and the motor comprises a case. Stators are annularly distributed and fixed to the inner wall of the case along the circumferential direction, a rotor sleeve is arranged at the position of amiddle shaft in the case, and rotors are annularly distributed and fixed on the outer wall of the rotor sleeve along the circumferential direction. The rotor sleeve is coaxially matched and fixedly connected with the water injection pump shaft, the case is fixedly connected with the end cover, a protective cover is further fixed to the non-connecting end of the case, and the rotor and the statorare installed respectively. According to the present invention, the problem that the double-positioning installation is difficult during overall installation of the motor is solved; meanwhile, the front and rear bearings of the motor and the front and rear end covers of the motor are saved, so that the structure of the whole unit is more simplified, the size is smaller, the occupied space is smaller, and space is saved for the pump station.

The invention discloses a spent fuel dry-type storage device which comprises a spent fuel storage tank, a support and an outer module, wherein the spent fuel storage tank is mounted in the outer module in a sleeved mode, a shielding top cover is arranged on the top of the outer module, the shielding top cover is connected with the outer module is a sealed mode, the support is arranged at the bottom and on the side wall between the spent fuel storage tank and the outer module and used for supporting the spent fuel storage tank to enable a cavity between the spent fuel storage tank and the outer module to be formed, and an air inlet channel and an air outlet channel are arranged on the outer module. According to the spent fuel dry-type storage device, radioactivity shielding for the spent fuel storage tank can be achieved, waste heat of the spent fuel tank is discharged to the external environment through a natural ventilation mode, a fan, a water pump and other power equipment are not needed to be utilized, not only can energy be saved and is daily maintenance reduced, but also inherent safety is provided, and safety of a spent fuel storage tank natural ventilation cooling system is effectively guaranteed.

The invention relates to the technical field of mining mechanical equipment, in particular to an ore vibrating screen. The ore vibrating screen comprises a base plate and screen bars, wherein positioning holes are formed in the base plate, the screen bars are made of composite wear-resistant alloy through casting, the screen bars and the base plate are fixed through vacuum welding, and the screenbars are of isosceles trapezoid structures with upper edges longer than lower edges. The ore vibrating screen has the beneficial effects of long service life, specifically, a high-hardness wear-resistant alloy material is adopted, the wear-resistant life of the high-hardness wear-resistant alloy material is 5-10 times that of a common wear-resistant material; high efficiency, specifically, the stone clamping phenomenon in a using process of a traditional vibrating screen is basically eliminated, the operation load of vibrating equipment is reduced, daily maintenance of the vibrating equipmentis reduced, and the production efficiency is greatly improved; and high benefit, specifically, the abrasion of the vibrating screen is greatly reduced, the production cost of enterprises is directly reduced, meanwhile, maintenance personnel and maintenance frequency are reduced, the vibration maintenance management cost is reduced, and economic benefits are improved for the enterprises.

The invention discloses composite type wallpaper and a preparation method thereof. The composite type wallpaper comprises a substrate layer, wherein a reinforced layer is arranged on any side of the substrate layer, a waterproof layer is arranged on the other side of the substrate layer, a fireproof layer is arranged on the other side of the reinforced layer, a sound absorbing layer is arranged onthe other side of the fireproof layer, a decorative layer is arranged on the other side of the sound absorbing layer, and a protective layer is arranged on the other side of the decorative layer; thereinforced layer is a polyarylester fiber layer; the sound absorbing layer is an activated carbon layer; and the protective layer is a polyvinyl resin layer. The composite type wallpaper disclosed bythe invention adopts green and environment-friendly materials, is excellent in tensile strength, integrates waterproof, fireproof, sound absorbing and dustproof functions into a whole and is optimized for interior decoration.