41results about How to "Reduce radiation pollution" patented technology

The invention provides an automatic detection device suitable for multi-diameter pipeline welding lines. A carrier dolly module (3) of the invention is arranged on a flexible track module (1); a scanner module (2) is fixed on the upper part of the carrier dolly module (3) through a vertical plate (8) and a horizontal plate (9); a probe combination module (4) is fixed on the lateral side of the carrier dolly module (3) through a tracking module (5); an encoder (6) is fixedly arranged on an angle adjusting block (3-4) of the carrier dolly module (3); and a motor (7) is fixedly arranged on a reduction gearbox (3-7) of the carrier dolly module (3). The invention can be applied to the diameter welding line detection of a series of pipelines; the efficiency of the detection technique of the invention in the pipeline girth welding line non-destructive detection is much higher than that of manual ultrasonic detection; and the invention is obviously superior in detection speed, environmental radiation pollution reduction and labor intensity decrease.

The invention discloses a processing method of a positioning hook forge piece. The processing method of the positioning hook forge piece comprises the following steps: 1), selectively using 35mm round steel and cutting by using a shearing machine, wherein the length of a sheared rough blank piece is 172mm; 2) putting the rough blank piece obtained in the step 1 into an intermediate frequency heating furnace for heating at a heating temperature of 1120 to 1180 DEG C and keeping the heating for 2-3min; 3) drawing out two ends of the workpiece obtained in the step 2 by utilizing an air hammer till the arrival of 20+/-2mm diameter, wherein the hammer drawing is performed for 8-14 times; 4) putting the drawn-out workpiece into a bending die of a punching machine for bending; 5), putting the bent workpiece into a shaping die in an electric screw press for hot forging by using the shaping die, wherein the temperature is 900 DEG C and the pressure is 630T; and 6) putting the hot forged workpiece into the punching machine for side cutting and punching. With the adoption of a quenching and tempering heat treatment technology for a positioning hook provided by the invention, the high temperature normalizing and the forging are caused to organically form a continuous production line; and therefore, the defects of the prior art are overcome, the energy resource is saved, the heat treatment quality is improved, the production period is shortened, the production cost is lowered and the radiation pollution to a workshop environment is reduced.

The invention relates to a dual-way passing detector of opposite-mounted sphere bed high temperature gas-cooled reactor fuel sphere, comprising an exciting unit, a sensing unit and a signal conditioning unit, wherein, the sensing unit comprises an exciting coil and two detection coils; the exciting coil and the detection coils are symmetrically arranged on two sides of a sphere conveying steel tube; signal power of sinusoidal voltage is amplified by the exciting unit and transmitted to the exciting coil of the sensing unit; the two detection coils of the signal conditioning unit and the sensing unit are connected, two ways of voltage signal of the detection coils are calculated and processed, and sine-wave voltage signal indicating sphere passing and passing direction is outputted; non-contact detection is adopted for detecting radioactive fuel sphere. The invention has the advantages of high signal-to-noise ratio of output signal, strong interference resistance, high resolution for continuous passing and passing of more than half a sphere as well as simple structure, convenient installation without damage to sphere conveying steel tube in construction.

The invention provides a CT based (Computerized Tomography) wide-breadth dynamic three-dimensional human body scanning system. The CT based wide-breadth dynamic three-dimensional human body scanning system comprises a near-infrared transmitter, a near-infrared receiver, a color camera and a PC (Personal Computer) end; the near-infrared transmitter is used for transmitting light covering human body surfaces; the near-infrared receiver is used for collecting light reflected by a human body; the color camera is used for collecting color image data of the human body; the PC end constructs a three-dimensional profile of the human body through simultaneously collected color data and depth data according to the receiving time difference of different light of the near-infrared receiver; the PC end constructs a positioning image according to an obtained three-dimensional human body surface patch image; the PC end confirms a CT scanning region according to the positioning image and controlling the radiation dosage during CT scanning according to a transverse image of the three-dimensional human body surface patch image. The CT based wide-breadth dynamic three-dimensional human body scanning system can well construct a starting position and a terminal position of scanning and controls the radiation dosage at different positions according to the section of the three-dimensional human body profile.

The invention discloses a method for compacting and treating micro-radioactive waste. The method includes A, fixedly mounting a waste barrel on a barrel access slider outside a compaction cavity when a barrel access lifting door is opened; B, pulling the barrel access slider so that the waste barrel enters the compaction cavity to be in position; C, closing the barrel access lifting door, shifting a transition barrel mounted in the compaction cavity and enabling a lower opening of the transition barrel to match with an upper opening of the waste barrel; D, opening a feeding door and feeding materials into the waste barrel at one step; E, closing the feeding door, enabling a pressure head of a compactor to move downward, compact and maintain pressure; F, repeating the step D and the step E until waste in the waste barrel is sufficient when the pressure head ascends and returns, and stopping feeding; and G, lifting the transition barrel, opening the barrel access lifting door and pushing the barrel access slider to lead out the waste barrel. The method is simple in operation, operation steps are reduced, operation efficiency can be greatly improved, failure rate is reduced, the service life of equipment is prolonged, and radiation pollution to operators is reduced.

The invention discloses a foam glass-based composite radar absorbing material and a preparation method thereof. The method comprises the following steps of: adding zinc powder and manganese dioxide into borosilicate foam glass, evaporating the zinc powder at high temperature, and reacting the evaporated zinc powder with oxygen so as to generate zinc oxide in the foam glass in situ. In the method,the needed raw materials are readily available, the cost is lower, the operation process is simple, the material is baked by a powder fusion method, the preparation temperature is low, and the formula is high in stability and reliability. The prepared absorbing material has excellent performance of absorbing electromagnetic waves, is applied to radiation-proof buildings, microwave heating, electromagnetic shielding of electronic equipment and the like, and also can be applied in the fields such as ground fortification anti-radar detection and resistance to electromagnetic interference militarily, microwave unreflected chambers and the like to reduce the electromagnetic radiation pollution.

The invention discloses a radio communication system and a radio frequency transmission control method. The radio communication system comprises a transmitter, a transmitting end control module, a transmitting end power supply, a receiver, a receiving end control module and a receiving end power supply, wherein the transmitting end control module is respectively connected with the transmitter and the transmitting end power supply; the receiving end control module is respectively connected with the receiver and the receiving end power supply; the receiving end control module is used for monitoring the power supply state of the receiver, generating enabling information and transmitting the enabling information to the transmitting end control module; and the transmitting end control module is used for receiving the enabling information and controlling the on/off of the transmitter according to the enabling information. By adopting the radio communication system and the radio frequency transmission control method, the power consumption of the transmitter can be controlled and the radio signal interference and radiation pollution can be effectively reduced.

The invention discloses a non-metal reinforcing rib for a track plate and a preparation method thereof. The non-metal reinforcing rib has a concrete solidified structure containing fiber ropes, the fiber ropes have woven structures of fiber strings woven from twisting fiber wires of organic long fibers, AR type glass long fibers and basalt long fibers, and the fiber wires contain thermosetting polymer gel. The non-metal reinforcing rib provided by the invention effectively combines the physical properties of metal materials, has the characteristics of high structural strength, high toughness,high impact strength, high firmness and the like, and can effectively replace a metal material reinforcing rib used in the track plate forming structure; moreover, the track plate manufactured by thereinforcing rib provided by the invention has the characteristics of light weight, low cost and the like, does not generate the problem of electromagnetic induction in the service of a manufactured track plate, is beneficial to reducing the radiation pollution of the electromagnetic induction to the surrounding environment in the operation of the track traffic, further is beneficial to improving the communication safety in the operation of the track traffic, and is economical, reliable and practical.

The invention relates to an anti-electromagnetic silicon steel sheet for a wind generator stator. The anti-electromagnetic silicon steel sheet comprises a silicon steel sheet body (1) and is characterized in that the silicon steel sheet body (1) is formed by welding a plurality of fan-shaped silicon steel sheet units (2) with the same central angle; a plurality of wire slots (3) are recessed inward in inner edges of the silicon steel sheet units (2); the silicon steel sheet body (1) is equipped with a plurality of round ventilation holes (4); the round ventilation holes (4) encircle the center of the silicon steel sheet body (1) to form a single-circle or multi-circle arrangement structure; and a surface of the silicon steel sheet is coated with an anti-electromagnetic coating. According to the anti-electromagnetic silicon steel sheet for the wind generator stator, the silicon steel sheet body is formed by welding the plurality of fan-shaped silicon steel sheet units with the same central angle so that waste of a lot of materials is avoided when the anti-electromagnetic silicon steel sheet for the wind generator stator is cut for molding, and the anti-electromagnetic silicon steel sheet has an anti-electromagnetic function.

The invention relates to an anion generating agent, a white top-coating and preparation methods. The anion generating agent is mainly prepared from raw materials as follows: hydrous magnesium-rich silicate, a magnesium-rich polar material and armorphous silicon dioxide, wherein the magnesium-rich polar material contains magnesium-containing silicate and a polar ore material. The anion generating agent can produce anions, and has the beneficial effects of purifying air, removing aldehyde, killing bacteria and improving air quality.

The invention discloses a clamping chain type connecting device for large-diameter vacuum flange butt joint. The clamping chain type connecting device comprises multiple arc-shaped clamped connectingblocks, the adjacent clamped connecting blocks are hinged to each other, the clamped connecting blocks are sequentially connected end to end to form a ring, the inner diameter of the ring is smaller than the vacuum flange diameter, and the outer diameter of the ring is larger than the vacuum flange diameter. Trapezoidal grooves are formed in the inner walls of the clamped connecting blocks, the clamped connecting blocks are clamped between two flanges through the trapezoidal grooves, and the head-end clamped connecting block and the tail-end clamped connecting block of the connecting device are detachably connected. After one fastening sleeve is unscrewed remotely through an internal hexagonal wrench, the whole connecting device can be dismounted from the flanges, operation is simple and convenient, the dismounting time is greatly shortened, dismounting safety is improved, and radiation pollution is reduced; and the device can be suitable for connecting flanges with different pipe diameters, after dismounting, the size is small, and the occupied space is small.

The invention relates to an electromagnetism-proof picking side opening hook. It includes a hook part (1) and a hook handle part (2), the bottom of the hook handle part (2) is provided with a shaft sleeve (3) perpendicular to the hook part (1), and a first circular through hole (4) is opened in the middle ), the middle part of the bushing (4) has a second circular through hole (5), the upper and lower end surfaces of the head of the hook (1) are respectively set in a curved shape, the hook (1) and the hook The surface of the handle (2) is coated with an anti-electromagnetic coating. The invention discloses an anti-electromagnetic hook that opens on the side of the picking shuttle. During use, the space required for its rotation is reduced, and it can avoid collisions with other components, and at the same time reduce its own stress. Weight, thereby improving work efficiency; and has the function of anti-electromagnetic.

The invention discloses a novel electric hair dryer which comprises a hair dryer shell body, a handle, an electric motor, a fan, an air outlet, an air outlet machine head, a switch and a heating device, wherein the hair dryer shell body is connected to the handle; the electric motor is disposed in the hair dryer shell body; the fan is disposed on a shaft end of the electric motor; the switch is disposed on the handle; the heating device is disposed at the air outlet of the hair dryer; a sound-absorption material layer is disposed on the inner side of the hair dryer shell body; the air outlet machine head is disposed at the front end of the air outlet of the hair dryer and is in a threaded connection with the hair dryer shell body; and the air outlet is connected to the air outlet machine head. The invention provides the novel electric hair dryer which has the advantages of a compact structure, convenient assembly and disassembly, easy manufacture, high safety and reliability, and high practicability.

The invention relates to an anti-electromagnetic textile roller. It includes a roller shaft (1) and a roller body (2), the roller shaft (1) is set inside the roller body (2), and the roller body (2) is provided with an elastic layer (3) and a pulling The pulling layer (4), the elastic layer is a rubber layer, the pulling layer is a steel belt layer, and the surface of the roller cylinder (2) is coated with an anti-electromagnetic coating. The invention discloses an anti-electromagnetic textile roller, which has the advantages of simple structure, long service life and low energy consumption; and has the function of anti-electromagnetic.

This invention provides an automatic controlled FM transmitting device including a FM transmitter and an outer host, in which, a slave control part is connected with the outer host, the FM transmitter includes a slave controller, a FM modulator and an emission antenna, the input of the slave controller is connected with a primary controller, the output of the slave controller is connected with the FM modulator, the output of the FM modulator is connected to the emission antenna. A method includes: the slave controller judges if there is sound source input from the exterior host, if there is sound source input, the supply of the FM modulator is turned on to supply to the FM modulator to emit modulation carrier signals, when there is not sound source input, the supply is cut off after timing a period of time to shut the emitter and stop the emission of FM carrier signals.