211 results about "Microwave emission" patented technology

The invention provides a high-sensitivity superconducting magnetic detection device and method based on an NV color center under high pressure and low temperature. The high-sensitivity superconducting magnetic detection device comprises a microwave emission module, an optical excitation module, an imaging module, a fluorescence collection module, a data collection and control module, a diamond anvil cell, a low-temperature test module and a magnet module. The method has the beneficial effects that the diamond injected with the NV color center serves as the anvil cell of the diamond anvil cell, and high-pressure and low-temperature conditions are synchronously obtained in liquid helium and liquid nitrogen temperature zones; according to the invention, in-situ pressure measurement can be realized under high pressure, and ruby or Raman standard pressure is not needed; a sample is placed in the diamond anvil cell, the diamond anvil cell is placed in the low-temperature cavity, the lowest temperature of 4K and in-situ pressurization can be realized by using the low-temperature test module, and the quality of a microwave signal transmitted by the low-temperature semi-steel cable is higher and the loss is smaller by using the low-temperature semi-steel cable. And the superconducting property of the material at low temperature and high pressure is quantitatively tested under the condition of high integration.

The invention discloses a double-heating-system electronic-grade polycrystalline silicon reduction furnace and a process method thereof, and relates to the technical field of polycrystalline silicon production equipment, and the reduction furnace comprises a cooling liquid inlet and a cooling liquid outlet which are respectively formed in the upper part and the lower part of a microwave window; a microwave emission branch pipe is fixedly arranged on the outer side of each microwave window, and each microwave emission branch pipe is connected with the microwave emitter through a microwave transmission header pipe; the method comprises the following steps: S1, starting the furnace; s2, early growth stage of the silicon rod; s3, middle growth stage of the silicon rod; s4, later growth stage of the silicon rod; and S5, blowing out the furnace and cooling. The double-heating-system electronic-grade polycrystalline silicon reduction furnace has the beneficial effects that silicon rods with larger diameters can be produced, and the yield of a single furnace is remarkably increased; the quality of the silicon rod is improved, and the high quality requirement of electronic-grade polycrystalline silicon is met; according to the process method disclosed by the invention, the utilization rate of raw materials is increased to 89% or above, the generation amount of amorphous silicon powder is reduced to 7.2 kg / furnace or below, and the energy consumption of a unit silicon rod is reduced.

The invention discloses an advanced water detection method based on controllable microwave and optical fiber temperature measurement combination. The method comprises the following steps: arranging a controllable microwave and optical fiber temperature measurement system; then the microwave transmitter and the receiver are matched with each other to obtain microwave data; meanwhile, the distributed optical fiber sensor obtains temperature data; then the monitoring host performs attenuation analysis on each group of received microwave data in combination with microwave emission power, preliminarily judges whether a water-containing disaster-causing body exists or not, and performs inversion processing on the received temperature data through a heat conduction model if the water-containing disaster-causing body exists so as to obtain the position of a heat source; and finally, setting a water-containing disaster-causing body judgment condition, performing fusion processing on the obtained water-containing disaster-causing body position and the heat source position, and finally determining the position of the water-containing disaster-causing body. By combining controllable microwaves with optical fiber temperature measurement, on the premise of a large detection range, the position of a water-containing disaster-causing body can be rapidly and accurately detected, meanwhile, the device has the advantage of being convenient to arrange, and therefore advanced detection of mine water disasters is effectively achieved.

The invention discloses an electric flame stove capable of eliminating ozone. The electric flame stove comprises a stove body, a magnetic energy box mounted at the upper end of the stove body and a burner mounted in the stove body, and a magnetron is arranged at the microwave emission port in the magnetic energy box. The high-frequency electromagnetic wave is adopted to excite the initial plasma, so that the temperature and efficiency of the electric flame are improved, and the high-temperature cooking requirements such as stir-frying in a kitchen are met; the reaction between active particles (oxygen ions O or oxygen atoms O) in plasma and ozone is accelerated by adopting high-frequency electromagnetic waves, and finally ozone molecules are decomposed and reduced, so that ozone overflow is inhibited; in a non-pot state, the density of the plasma in the double hearths is small, the microwave switch is switched off, the magnetron stops working, and microwave leakage is completely eradicated from the source; the cooling tank is annularly distributed on the side wall of the second hearth to form a continuous gas barrier surrounding the second hearth, so that the magnetron and the side wall of the second hearth are prevented from being influenced by ultrahigh temperature.

The invention relates to a magnetic field sensor (10), comprising: an excitation light source (6) for emitting excitation light (4), a measurement region (7) which has colour centres (3) in a crystal (1), preferably NV centres in a diamond, which emit fluorescent light (5) when excited with the excitation light (4), a detector (8) for detecting the fluorescent light (5) from the measurement region (7), a microwave emitter (11) for applying a microwave field (9) to the measurement region (7), a signal generator (14) which is designed to generate a microwave signal (15) for the microwave emitter (11) and has two frequency components (fsb-(t), fsb+,π(t)) phase-shifted in relation to one another by π, in order to simultaneously excite magnetic field resonances at two different resonant frequencies (f-, f+) in the crystal (1) in order to determine a magnetic field (B), and an evaluation device (12) which has a demodulator (13) for forming a demodulated magnetic resonance signal from the detected fluorescent light (5) of the measurement region (7), wherein the evaluation device (12) is designed to determine a detuning (∆B) of the resonant frequencies (f-, f+) due to a change in the magnetic field (B), and to generate a frequency shift (∆f) of the microwave signal (15) according to the magnetic-field-related detuning (∆B) of the resonant frequencies (f-, f+). The magnetic field sensor (10) is designed to determine, in a temperature calibration step, a temperature-related detuning (∆T) of the resonant frequencies (f-, f+) and to take same into account in the frequency shift (∆f) of the microwave signal (15) in order to determine the magnetic field (B). The invention further relates to an associated method for calibrating the temperature of a magnetic field sensor (10).

The utility model discloses a heating device for quickly activating a pressure-sensitive adhesive tape and a thermoplastic or thermosetting adhesive tape. The heating device comprises a microwave heating head, a microwave transmitting assembly and a motion driving assembly, the microwave emission assembly is connected with the microwave heating head and is used for outputting microwaves to the microwave heating head; the motion driving assembly is connected with the microwave heating head and used for achieving alignment and motion of the microwave heating head and the heated assembly. The microwave heating head is driven by the motion driving assembly to heat the heated assembly. According to the utility model, through the cooperation of the microwave emission assembly and the motion driving assembly, a pressure-sensitive adhesive tape and a thermoplastic or thermosetting adhesive tape are flexibly heated according to a set motion trail by allocating microwaves with appropriate power, and the heating objects applied by the device are the pressure-sensitive adhesive tape and the thermoplastic or thermosetting adhesive tape.

The invention relates to an apparatus (1) for thawing food, the apparatus 1 being preferably a thawing drum or a thawing mixer, comprising a thawing chamber (3) for accommodating food, wherein the thawing chamber (3) comprises a sensor (10) for sensing a degree of freezing of the food accommodated in the thawing chamber (3), the sensor (10) comprising a microwave emitter (11) and a microwave receiver (12) spaced apart from the microwave emitter (11), the microwave receiver (12) being further configured to receive an emission signal emitted by the microwave emitter (11), wherein the microwave emitter (11) and the microwave receiver (12) are arranged inside the thawing chamber (3) such that, during a thawing process with the apparatus (1), the food is at least temporarily located between the microwave emitter (11) and the microwave receiver (12).

The invention is directed to a method for detecting moisture in a roof structure comprising measuring microwave emission of the roof structure, particularly by using a passive microwave radiometer. The invention is also directed to use of a passive microwave radiometer for detecting leakages in a roof structure.

The utility model relates to the technical field of liquid detection, in particular to a liquid detector which comprises a shell, a non-metal container detection platform and a metal container detection cavity are arranged at the top of the shell, and a non-metal container detection module is arranged in the non-metal container detection platform. The nonmetal container detection module comprises an ultra-wide-band pulse microwave transmitter and an ultra-wide-band pulse microwave receiver, a metal container detection module is arranged in the metal container detection cavity and comprises an electric heater and a thermoelectric sensor, and a first indicator lamp and a second indicator lamp of a touch operation screen are arranged on the front side of the shell. A detachable bottom plate is arranged at the bottom of the shell, and four leveling pieces are arranged at the bottom of the bottom plate. According to the liquid detector, a non-contact detection method is adopted, and a container is prevented from being opened for sampling, so that the risk of leakage, evaporation or explosion of flammable and explosive liquid is remarkably reduced, the safety of operators is ensured, and potential threats to the surrounding environment are also reduced.

The invention relates to the field of semiconductor devices, and particularly discloses a photoelectric heterogeneous integrated microwave emission chip and a preparation method thereof, the chip is composed of a GaN HEMT amplifier and an InP UTC type detector on a SiC substrate; the preparation method comprises the following steps: preparing an amplifier on a SiC epitaxial wafer; growing a UTC type detector epitaxial layer on the InP substrate, and preparing a mesa structure; bonding the sapphire slide and the detector wafer; the InP epitaxial wafer substrate is removed; transferring the detector to an amplifier wafer through metal bonding; removing the temporary sapphire slide; and the detector is in electric signal communication with the amplifier. Compared with a method of firstly transferring an InP epitaxial layer and then preparing a detector device, the method has the advantages that the adverse effect of an InP-based detector processing technology on an amplifier is avoided; and secondly, the InP-based detector prepared by the method has the characteristic that the N-type contact metal faces downwards, and the structure is beneficial to reducing the junction region temperature and enhancing the heat dissipation capability of the device.

The utility model discloses a cigarette detection tool, and relates to the technical field of cigarette detection equipment. The utility model discloses a cigarette detection tool, which comprises a bottom plate, wherein the plate surface of the bottom plate is a horizontal plane; the transmitting bracket and the receiving bracket are both vertically mounted on the bottom plate; the microwave transmitter is rotationally connected with the transmitting support, the microwave receiver is rotationally connected with the receiving support, and the rotating surfaces of the microwave transmitter and the microwave receiver are perpendicular to the horizontal plane of the bottom plate; the cigarette support is fixedly connected with the bottom plate, and the cigarette support is located between the receiving support and the transmitting support; wherein the transmitting bracket, the receiving bracket and the cigarette bracket jointly form a detection channel.

The invention discloses a polycrystalline silicon reduction efficient vapor deposition reaction system and method, and relates to the technical field of polycrystalline silicon preparation, the polycrystalline silicon reduction efficient vapor deposition reaction system comprises a plasma reaction chamber, the inlet end of the plasma reaction chamber is communicated with a mixed gas pipeline, and the plasma reaction chamber is used for receiving SiHCl3 and H2 mixed gas so as to generate plasma-state mixed gas from the SiHCl3 and H2 mixed gas; the plasma accelerator is communicated with the outlet end of the plasma reaction chamber and is used for accelerating the plasma-state mixed gas and maintaining the activity of the plasma-state mixed gas; the reduction furnace is connected with the outlet end of the plasma accelerator, a plurality of silicon rods are arranged in the reduction furnace, and the reduction furnace is used for receiving the plasma-state mixed gas and carrying out vapor deposition reaction; the microwave emission head assembly is mounted on the reduction furnace and is used for providing high-energy electromagnetic waves into the reduction furnace; and the bias voltage source and the heating assembly are connected with the silicon rod. According to the polycrystalline silicon reduction high-efficiency vapor deposition reaction system, the technical problems of low production efficiency and high production energy consumption cost of polycrystalline silicon preparation are solved.

The invention provides a self-adaptive anti-interference composite induction alarm method, and relates to the technical field of self-adaptive anti-interference, and the method comprises the steps: carrying out the modal decomposition of a vibration signal through a vibration decomposition model, calculating a vibration signal decomposition optimization index, carrying out the optimization of a parameter of a recognition model according to the vibration signal decomposition optimization index, and carrying out the recognition of the vibration signal. The method comprises the following steps: acquiring target characteristics of a modal component, calculating dynamic unfamiliar attributes in a time period formed by multiple window times through a sliding window method, detecting a to-be-early-warned region by setting microwave emission initial parameters, performing time-frequency domain analysis on an echo signal, and calculating the detection quality of the echo signal, thereby realizing early warning of the to-be-early-warned region. The method comprises the following steps: optimizing microwave emission parameters through a microwave optimization model, obtaining an optimal echo signal, establishing a feature recognition model, respectively outputting feature recognition data, carrying out composite early warning, and automatically adjusting diffraction waves for detection when an obstacle shielding a microwave signal appears in microwave detection.

A heating device for activating a pressure-sensitive adhesive tape and a thermoplastic or thermosetting adhesive tape includes a microwave heating head, a microwave emitting component, and a motion driving component. The microwave emitting component is connected to the microwave heating head, and used to output microwaves to the microwave heating head. The motion driving component is connected to the microwave heating head for achieving the alignment and motion of the microwave heating head and a heated component. The microwave heating head is driven by the motion driving component to heat the heated component. Through the cooperation of the microwave emitting component and the motion driving component, the flexible heating of the pressure-sensitive adhesive tape and the thermoplastic or thermosetting adhesive tape according to a set motion trajectory is achieved by deploying microwaves with appropriate power. A heating object is the pressure-sensitive adhesive tape and the thermoplastic or thermosetting adhesive tape.

The invention provides an ultra-large array plane radar satellite decoupling vacuum thermal test method, which comprises the following steps of: arranging a satellite and radar antennas in a vacuum tank, detaching the radar antennas from the satellite, arranging the radar antennas on one side of the satellite side by side, and respectively arranging infrared simulation devices around the satellite to simulate external thermal flow; a wave absorbing device is arranged on an antenna array plane to absorb microwaves and simulate external heat flow, the power level of an infrared simulation device is adjusted according to the heat radiation level of the satellite surface, the power level of the wave absorbing device is adjusted according to the microwave emission power and the heat radiation level of the antenna array plane, and a vacuum thermal test is performed on the satellite and the antenna. According to the invention, vacuum thermal tests on a satellite and a radar antenna due to an overlarge antenna array plane can be avoided, a whole-satellite microwave wireless emission state test can be carried out, extremely high-risk operation caused by hanging and unfolding in an antenna tank is avoided after the antenna and the satellite are decoupled, the tank occupation period of links such as test state establishment and withdrawal is greatly shortened, and the test efficiency is improved. And the model development efficiency is improved.

The invention discloses a hot food retail cabinet and a food delivery method, and belongs to the technical field of intelligent retail equipment. A heating bin chassis turntable is mounted on a chassis lifting device, a heating bin is mounted at the top of the heating bin chassis turntable, a solid microwave emission port is formed in one side of the top of the heating bin, and a solid radio frequency emission port is formed in the top of the heating bin; an electric push rod is installed on the inclined side of the heating bin, an exhaust air outlet is formed in the portion, on one side of the solid-state radio frequency emission port, of the heating bin, a preheating bin is installed on one side of the heating bin, a chain push plate conveying device is installed on the inner side of the preheating bin, and an electric heating pipe separation net and an electric heating pipe are installed on one side of the chain push plate conveying device. A goods inlet door and a goods outlet door are symmetrically arranged on the two sides of the preheating bin, the goods inlet door is installed on the left side of the preheating bin, and the goods outlet door is installed on the right side of the preheating bin, the continuous meal outlet time is shortened by 30%-50%, the food reduction degree is higher, meanwhile, high-concurrency order processing is supported, and the service efficiency and the user experience in the hot food retail scene are remarkably improved.

The invention discloses an auxiliary puncture device for an ablation needle and an application method of the auxiliary puncture device, and relates to the field of medical instruments.The auxiliary puncture device comprises a fixing base, the ablation needle is fixedly connected to the base, the needle is sleeved with a sleeve in a sliding mode, the length of the sleeve is matched with that of a microwave emission window, and the fixing base is provided with a switching assembly connected with the sleeve so that the position of the sleeve can be switched to change the working state; the sleeve completely wraps the emission window and part of the needle rod, and only the needle tip is exposed or is flush with the needle tip; and in the second state, the sleeve retracts for avoidance, so that the emission window is exposed. The application method comprises the following steps: locking the cannula in a first state to execute puncture, switching to a second state after reaching a target spot, and starting equipment to complete ablation. The cannula is made of medical-grade metal materials, a gap is reserved between the inner wall and the needle body to prevent friction interference, the emission window can be accurately protected, the problem that weak spots are prone to damage when an existing ablation needle is used for puncturing is solved, microwave energy conduction is not affected, and smooth operation is guaranteed.

The application discloses a water body ammonia nitrogen concentration differential absorption detection device based on microwave remote sensing, relates to the technical field of water pollution detection, and comprises a floating platform for floating on a detection water body and a mounting plate arranged on the floating platform. A microwave emission module and a microwave receiving module for microwave remote sensing detection are mounted on the mounting plate. A signal processing and analysis module for information processing and a data storage and display module are arranged on the floating platform. In the detection process, through the cooperation of a swing assembly, a water body depth identification assembly, a lifting assembly and an adjusting assembly, the microwave signal emitted by the microwave emission module on the mounting plate can cover a larger area of the water surface, three-dimensional sampling of the water body can be realized, one-sidedness of single-point detection can be avoided, the detection state can be adaptively adjusted according to the depth of the detection water body during the detection, and flexible detection operation is facilitated.

The invention belongs to the technical field of wind power generation equipment maintenance, and particularly relates to a mooring unmanned aerial vehicle cooperative wind turbine blade microwave deicing method which comprises the following steps that S1, a system is initialized, a ground base station obtains fan operation parameters in real time, the icing risk is judged based on the environment temperature and humidity and the blade surface state, and a mooring unmanned aerial vehicle cluster is started; s2, an icing area is scanned, a mooring unmanned aerial vehicle cluster carries a multi-mode sensor and flies around the blade at a set speed, the surface of the blade is scanned, and the position, the range and the average thickness of the icing area are recognized through a thermal infrared imager and a laser vibration meter; the ground control system generates an ice layer three-dimensional thermodynamic diagram according to the scanning data, and marks a high-risk area based on a preset freezing point temperature threshold value and an icing area critical value; s3, cooperative deicing operation is carried out, and according to the spatial position of the target area, the unmanned aerial vehicle formation spacing, the microwave transmitting power and the antenna radiation angle are adjusted in real time; according to the invention, the problems of high energy consumption, uneven coverage and poor safety in the prior art can be solved.

The utility model relates to an edge sealing mechanism, specifically, an edge sealing mechanism capable of adjusting corresponding positions according to the size of four edge sealing water absorption pads. The edge sealing mechanism comprises a base, a first support frame and a second support frame are fixedly connected to the upper side of the base, a heating assembly is arranged on the upper side of the base, left and right edge sealing mechanisms are arranged in the first support frame, front and rear edge sealing mechanisms are arranged in the second support frame, and the left and right edge sealing mechanisms are located between the heating assembly and the front and rear edge sealing mechanisms. In the process of edge sealing treatment of the water absorption pad, the microwave generator and the microwave transmitter emit microwaves to heat the front and rear and left and right sides of the water absorption pad, the glue particles inside the side of the water absorption pad are heated and softened, then the rotating printing roller, printing ring and lower pressing roller extrude the side of the water absorption pad, the softened glue particles are used to paste the side of the water absorption pad together for edge sealing, thereby improving the continuous operation efficiency and edge sealing effect of the side of the water absorption pad.

This utility model discloses a high-efficiency preparation device for licorice extract, relating to the technical field of licorice extract preparation equipment, and solves the problem of low drying efficiency in existing vacuum drying equipment during licorice extract preparation. The utility model includes a support frame with a central tube fixed on it. The central tube passes through the axis of the vessel body, and the vessel body and central tube are rotatably coupled. The central tube is coupled with a vacuum system, and a stirring scraper is fixed on the central tube. The support frame has a drive mechanism for driving the rotation of the vessel body. The vessel body and central tube are fitted with inlet and outlet structures, and a microwave transmitter is fixed on the central tube. The vacuum system provides an extremely low-pressure environment, lowering the boiling point and preventing overheating that could lead to degradation or volatilization of heat-sensitive substances, thus improving the purity of the purified licorice extract. The microwave transmitter provides a microwave physical field, and heating is achieved through high-frequency electromagnetic waves, which, combined with the extremely low-pressure environment, improves drying efficiency.

The utility model relates to the technical field of decorative paper drying, in particular to decorative paper gum dipping and drying equipment which comprises a shell, a hot air circulation mechanism is arranged in the shell and comprises an air injection cylinder, and a recovery air cylinder is fixedly arranged on the outer side of the air injection cylinder through an air injection pipe; a second arc-shaped recovery baffle is fixedly arranged on one side of the recovery tank, and a first arc-shaped recovery baffle is fixedly arranged on one side, corresponding to the air spraying pipe, of the surface of the recovery air cylinder; and through the synergistic effect of the hot air circulation mechanism and the microwave emitter array, rapid drying of the decorative paper is achieved. The hot air circulating system can efficiently utilize hot air and reduce heat waste, meanwhile, microwave-assisted drying can further accelerate evaporation of moisture, the drying time is remarkably shortened, and the production efficiency is improved.

The utility model relates to the technical field of cooking equipment, in particular to a micro-baking all-in-one machine which comprises a cavity, a heat conduction assembly, a microwave emitting device, a fan device and an air guide structure, the fan device is arranged to suck air from the outside, then a second air path is arranged to be communicated with the heat conduction assembly, and then an air inlet cavity opening of the cavity is arranged to be communicated with the interior of the cavity. According to the technical scheme, continuously flowing hot gas is provided for the heat conduction assembly and the interior of the cavity, finally, overheated steam in the cavity is exhausted through the steam exhaust hole of the cavity, heat transfer and gas circulation are accelerated, and the situation that the heat conduction cavity and the cavity are overheated and prone to condensation and water accumulation, and rusting is caused is prevented; the microwave emitting device is arranged in the first air path in the air guide structure, and heat of the microwave emitting device is guided into the cavity through the fan device and the air guide structure and then is exhausted through the steam exhaust hole, so that condensation and water accumulation caused by overheating due to heating of the microwave emitting device can be prevented; the problem that in the prior art, a micro-baking all-in-one machine is prone to condensation and water accumulation is effectively solved.

A wireless pipe pile hole imaging device includes a camera module, a connecting rod, a positioning tripod, a microwave relay, and a host computer; the camera module includes a camera assembly, a microwave transmitter, and a transparent waterproof shell, and the camera assembly and the microwave transmitter are both located in the transparent waterproof shell; the connecting rod is connected to the top of the transparent waterproof shell, and a plurality of sensing marbles are spaced apart on the connecting rod; a square channel is provided in the positioning tripod; the middle portion of the inner wall of the channel is recessed inward to form a groove, and an induction switch is provided in the groove, and the induction switch is inductively connected to the sensing marble and the camera module respectively; the microwave relay is provided at the pipe pile hole, and the microwave transmitter, the microwave relay, and the host computer are connected in sequence via signals. The present invention greatly improves the quality of the image obtained through equidistant static imaging, and gets rid of the constraints of data cables and power cables, can be easily operated, and greatly improves the detection efficiency and imaging effect.

The invention relates to the technical field of rainfall monitoring, in particular to a rainfall monitoring method and system based on low-frequency microwaves. The method comprises the following steps: firstly, a microwave emission module generates a continuous microwave signal of which the frequency is a preset frequency, and directionally radiates the continuous microwave signal to an airspace of a to-be-detected area, and then an antenna assembly receives a scattered signal generated in the airspace of the to-be-detected area, and gains and filters the scattered signal to obtain a corresponding perfect signal; the signal processing module demodulates the perfect signal to extract the signal amplitude attenuation of the perfect signal, and calculates the real-time rainfall intensity of the to-be-measured area based on the signal amplitude attenuation; according to the scheme, microwave signals are directionally transmitted, a small to-be-monitored area of 1-10 km can be accurately covered, planar accurate monitoring is achieved, and the limitation of a traditional rainfall monitoring scheme is solved; the signal attenuation-rainfall intensity calibration model constructed based on the Mie scattering theory can ensure the accuracy of rainfall monitoring and meet the accuracy requirement of small-area fine monitoring.

The present invention provides a multi-channel spiral microwave heater. This microwave heater utilizes multiple magnetrons. The microwaves emitted by the multiple magnetrons are collected into the waveguide through a multi-channel waveguide, achieving energy superposition. The waveguide adopts a spiral structure, and multiple transverse waveguides are arranged from top to bottom on opposite sides of the spiral waveguide. This forms multiple transverse microwave emitting ends from top to bottom on a microwave heating rod device, enabling the microwave heater to fully emit microwaves into the soil over a wide range. Furthermore, the pitch of the spiral waveguide gradually decreases from top to bottom, resulting in a gradually decreasing spacing between the transmitting antennas from top to bottom. This concentrates the microwave energy at the bottom of the microwave heater, preventing the microwave energy from being weakened when it reaches the bottom of the spiral waveguide, effectively improving the heating effect on deep soil.

The application discloses a kind of based on microwave pre-splitting-directional jet flow slit expansion synergy deep coal seam permeability improvement system and permeability improvement method, belong to coal mine gas extraction permeability improvement technical field.The system of the present application includes high-pressure jet preparation system, multi-frequency microwave generating system and intelligent monitoring control system, high-pressure jet preparation system is mainly composed of superhigh pressure plunger pump, high-frequency pressure stabilizer, directional jet flow casing and directional jet flow nozzle, multi-frequency microwave generating system is mainly composed of multi-frequency microwave emission source, multi-frequency microwave power compensator, inner microwave waveguide tube and microwave energy-gathering radiation head.The present application breaks through the bottleneck of deep coal seam permeability improvement technology through the synergistic effect of "microwave multi-point synchronous preheating seam creation + directional jet flow slit expansion", solves the problem of few initial cracks, inaccuracy of slit expansion direction and poor stability in traditional permeability improvement technology, thereby promoting the construction of deep coal seam fracture network and the improvement of extraction efficiency.

This invention provides an electromagnetic shielding device for a microwave transmitter, belonging to the field of microwave shielding technology. The device comprises: a microwave absorbing component that absorbs microwaves from the microwave transmitter and converts them into heat through a conductive liquid; the microwave absorbing component is connected to a heat dissipation and cooling system for heat dissipation; the microwave absorbing component includes: several conductive liquid pipes arranged regularly and tightly attached to the microwave transmitting antenna; a fixing frame for supporting the conductive liquid pipes; a water pump; and a flow pipe; the heat dissipation and cooling system includes: a liquid storage cavity and a cooling fan; the flow pipe connects the liquid storage cavity and the conductive liquid pipes, and the water pump circulates the conductive liquid between the conductive liquid pipes and the liquid storage cavity; the cooling fan is arranged on the liquid storage cavity to dissipate heat from the conductive liquid within the cavity. By absorbing microwaves from the microwave transmitter and converting them into heat through the conductive liquid, and then having the heat carried away by the cooling fan, the electromagnetic shielding effect of the microwave transmitter is achieved.

The application provides a copper slag polymer composite modified asphalt based on microwave heating and a preparation method thereof. A base asphalt is heated to a molten flowable state, an oil phase, copper slag and an active diluent are added and stirred uniformly, then a styrene block copolymer is added under low rotation speed, followed by continuous shearing by increasing the shearing speed, full development and ensuring that the modified asphalt is radiated by a microwave emission device while shearing and developing, so as to obtain the copper slag polymer composite modified asphalt based on microwave heating. The oxides such as SiO2, CaO, MgO and Al2O3 in the copper slag and the synergistic microwave absorption effect of magnetite are used to absorb electromagnetic waves and convert them into heat energy, so that the external heating temperature in the shearing and molding process is reduced, the microwave radiation makes the modified asphalt heated more uniformly in the shearing process and the development process, the risk of asphalt aging caused by the non-uniform heating in the conventional high-temperature heating mode is avoided, and the durability and application performance of the modified asphalt are significantly improved.

The present invention relates to the technical field of plastic bottle recycling, and more specifically to a device for measuring the moisture content of plastic bottle bricks. The device comprises an automatic conveyor line, a microwave transmitting probe, and a microwave receiving probe. A vertical plate is mounted on a line-moving gantry. When the plastic bottle brick moves between the two vertical plates, the vertical plate clamps onto the side wall of the plastic bottle brick, causing the line-moving gantry to move synchronously with the plastic bottle brick. A probe vertical drive assembly is fixedly mounted on the side wall of the vertical plate and is used to drive the microwave transmitting probe and the microwave receiving probe to move up and down. After the line-moving gantry moves along with the plastic bottle brick for a measured width, a reset assembly drives the line-moving gantry to move in the opposite direction of the conveying direction of the automatic conveyor line. In the present invention, the vertical plate clamps onto the side wall of the plastic bottle brick, allowing the microwave transmitting probe and the microwave receiving probe to scan back and forth close to the side wall of the plastic bottle brick, thereby reducing errors in measuring the moisture content of the entire package.