42results about How to "Shorten inspection and maintenance time" patented technology

A horizontal novel centrifugal concentrator comprises a frame (8), an outer cover (1), a rotating drum (2), a variable frequency reducing motor (4) connected with the rotating shaft of the rotating drum through a coupler (3), a flushing system (5) arranged in the outer cover and connected with an external water supply system, an ore distributor system (6) below the outer cover, an ore receiving bucket (7) below the outer cover, a feeding system (9) arranged outside the outer cover and communicated with the rotating drum, wherein the rotating drum comprises the rotating shaft, a horn-shaped rotating disc and a circular truncated cone-shaped rotary drum; the rotating shaft is sleeved with the rotating disc; the rotating disc is sleeved with the rotary drum; the large end surface of the rotary drum is connected with the outer edge of the rotating disc; the tilt angle of the opening in the internal face of the rotary drum is 2-6 degrees; the flushing system comprises a water inlet pipe with a pneumatic ball valve and flushing nozzles in the rotary drum; the ore distributor system comprises a cylinder, an oscillating shaft, a connecting arm and an ore distribution hopper; one end of the connecting arm is connected with the push rod of the cylinder and the other end of the connecting arm is connected with the oscillating shaft; a lifting arm at the top of the ore distribution hopper is connected with the oscillating shaft; the feeding system comprises an ore distribution box and at least two feeding nozzles; a pneumatic knife gate valve is arranged at the ore inlet of the ore distribution box; the feeding nozzles are mounted at the tail ends of feeding pipes of the ore distribution box and face to the internal face of the rotary drum. The horizontal type novel centrifugal concentrator has a simple structure and a good concentration effect, and is easy to control and maintain.

The invention belongs to the technical field of power transmission, distribution and protection of nuclear power plants, and provides a live detection system for an oil-immersed transformer in a nuclear power plant, including a vibration measurement module for a bushing equalizing cover and an oil-immersed transformer in a nuclear power plant. The oil-immersed transformer in a nuclear power plant includes a shell , high-voltage bushing, bushing lead wire and pressure equalizing cover. The high-voltage bushing includes a bushing body and a bushing shell set outside the bushing body. On the elevated seat, one end of the high-voltage bushing extends into the casing, the other end of the high-voltage bushing extends out of the casing, the bushing body at one end of the high-voltage bushing is connected to the bushing lead wire, and the equalizing cover It is fixed on the bushing body by bolts and covered outside the connection between the bushing lead wire and the bushing body. The system provided by the invention can realize the function of efficiently locating and detecting the faults of the voltage equalizing cover in the oil-immersed transformer, and further improve the overall detection efficiency of the oil-immersed transformer.

The invention belongs to the field of offshore drilling and particularly relates to an operating process of an offshore drilling shore-based supporting mud plant system. The system adopted by the operating process comprises a mobile pump skid integrated unit, a movable slurry preparing tank integrated unit, a movable storage tank integrated unit, a waste liquid treatment skid integrated unit and pipes, a control system and the like for connecting the integrated units. The operating process achieves drilling fluid preparation, transfer and recovery treatment functions and the like by conducting switching control on a working valve in the mud plant system. In the mud plant system, the integrated units are formed by setting different functions, quick transfer and quick assembly of a whole shore-based supporting mud plant can be achieved, the efficiency is high, and the economic benefits are very remarkable.

The invention belongs to the technical field of transfer equipment in mine, metallurgy and coal mine industries, and in particular, relates to a valve type lining plate quick replacement device for a discharge funnel. The device comprises a material receiving side plate of the discharge funnel; an easy wear lining plate replacement port is formed in the material receiving side plate; two limiting strip plates are arranged at the left and right side edges of the easy wear lining plate replacement port, and are connected with a lining plate rotating door assembly; the lining plate rotating door assembly consists of a rotating door sheet, two folds, a door sheet switch, a set of support plates, a set of lining plate hanging plates, a lining plate and a set of fastening bolts; and a seal pressing bar is arranged on the peripheral surface of the inner side of the rotating door sheet. The device skillfully designs a detachable mobile door to the openable rotating door plate; the lining plate to be replaced is hung on the rotating door plate; the installation can be finished along with the closing of the rotating door plate; the complex work of replacing the lining plate in the discharge funnel becomes simple and convenient; the maintenance workload is reduced; the maintenance time is shortened; and the operability is improved.

The invention provides a placement device comprising a servo motor, a placement main shaft, a placement sucker and a sensing device. The servo motor is connected with the placement main shaft and is used for driving the placement main shaft to rotate; the placement main shaft is connected with the placement sucker and is used for driving the placement sucker to rotate; the placement sucker is used for sucking an electronic element for placement; and the sensing device is connected with the servo motor and is used for sensing a rotating angle of the placement main shaft and generating a sensing signal when the placement main shaft rotates to a preset angle so that the servo motor drives the placement main shaft to stop rotating according to the sensing signal. The placement device has lower cost, reasonable structure, good exchangeability, and the placement precision and the efficiency satisfy the production requirements. The invention also provides a method for placing electronic elements by utilizing the placement device.

The invention discloses a masonry construction structure of a heating furnace bottom. The masonry construction structure comprises a fixed furnace bottom brick base, a movable furnace bottom brick base and a right furnace bottom brick base, wherein the fixed furnace bottom brick base is connected with a furnace layer; the furnace layer is provided with a first high-strength lightweight brick and a first irregular brick; the first high-strength lightweight brick and the first irregular brick are provided with a first amorphous refractory material layer; the movable furnace bottom brick base is connected with a lightweight brick layer which is provided with a second high-strength lightweight brick and second irregular bricks, and the second high-strength lightweight brick and the second irregular bricks are provided with a second amorphous refractory material layer; the bottom of the movable furnace bottom brick base is connected with an I-shaped steel device; the right furnace bottom brick base is connected with a right wall body layer; the right wall body layer is provided with a third high-strength lightweight brick and third irregular bricks; the third high-strength lightweight brick and the third irregular bricks are provided with a third amorphous refractory material layer. The masonry construction structure has the characteristics of being simple in structure, easy to operate and construct, and capable of improving the operation efficiency of a heating furnace.

The invention relates to the field of laser welding of plate and strip steel, in particular to a laser calibration device and method for welding. A welding machine laser beam optical mode detection system, including a photosensitive developing coating coated on the photosensitive surface of a laser power measuring head; an ultraviolet projection lamp and a camera are also arranged near the laser power measuring head, and the irradiation direction of the ultraviolet projection lamp points to the photosensitive The shooting direction of the camera points to the photosensitive surface. A method for detecting the laser beam optical mode of a welding machine. A standard laser is selected, the standard laser is turned on, and the standard laser mode pattern is obtained from the photosensitive surface; the laser output unit to be detected is opened to obtain the laser mode pattern to be detected; the laser pattern pattern to be detected is obtained The deviation of the laser to be detected is obtained by comparing with the standard laser mode graph. The invention realizes the real-time detection of the laser beam optical mode of the butt welding machine in the production process, is beneficial to improving the accuracy of weld quality judgment, greatly shortens the required inspection and maintenance time, and improves the production efficiency.

The name of the invention is a water stemming of a discharge hole of a quartz crucible material-preparation furnace. The invention belongs to the technical field of material preparation of environment-friendly optical glass and lanthanide optical glass. The invention mainly solves the problem of cracking of a crucible bottom when a quartz crucible is used to prepare raw materials of environment-friendly optical glass or lanthanide optical glass at present. The main characteristics are that: the water stemming comprises a water stemming body, and an inlet pipe and an outlet pipe which are disposed on a lower end surface of the water stemming body; an upper end surface of the water stemming body is a conical surface fitted to a discharge hole with a cone angle of 110 DEG-130 DEG; the water stemming body is made of heat-resistant stainless steel with an external diameter of phi 36-phi 45 mm, a wall thickness of not less than 3.5 mm, and an upper end surface thickness of not less than 4 mm; an upper port of the outlet pipe is higher than an upper port of the inlet pipe by 8 mm-12 mm. The invention is characterized in that: the invention not only meets the production requirements of a quartz crucible material-preparation furnace, but also effectively protects the quartz crucible, reduces production cost, and improves production efficiency, and the invention is mainly used to plugging the discharge hole at the crucible bottom when a quartz crucible is used to prepare raw materials of environment-friendly optical glass or lanthanide optical glass.

The invention relates to a grate plate protection movable block of a single-tooth roller crusher convenient for disassembly and replacement. The grate plate protection movable block comprises a grate plate body and a protection movable block connected with the grate plate body, and is characterized in that the protection movable block consists of a left end movable block, a right end movable block and a middle movable block; the normal sections of the left and right end movable blocks and the middle movable block are long structural bodies with triangular upper parts and having regular trapezoidal insertion grooves in the lower parts; bolt holes are formed in the middle lower parts of the left and right end movable blocks and the middle movable block; the grate plate body is a long grate plate having regular trapezoidal bosses, matched with the regular trapezoidal insertion grooves, in the middle parts; bolt holes are also formed in the grate plate body; the regular trapezoidal insertion grooves of the protection movable block and the regular trapezoidal bosses of the grate plate body are inserted, and are fixedly connected through bolts, nuts and spring washers. The grate plate protection movable block has the advantages of simpleness and convenience for replacement, reduction of maintenance workload, shortening of maintenance time and reduction of spare part consumption.