324results about How to "Improve emission efficiency" patented technology

The invention relates to a terahertz radar imaging system based on four-inch spinning, which belongs to the technical field of terahertz wave imaging and comprises a femtosecond laser light source, a beam splitter, a laser pumping terahertz transmitting module, a detection laser transmission module and a terahertz detection module which are arranged along the laser incidence direction. An efficient, large-size and ultra-wideband terahertz radiation source and a radar imaging device are fused, high-signal-to-noise-ratio and high-resolution terahertz imaging of a large-size target is achieved, and the system is low in cost, easy to construct, free of complex parabolic mirror combination, firm and reliable in performance and suitable for large-size target imaging. And the requirements of various engineering application scenes on synthetic aperture and nondestructive detection imaging can be practically met.

The invention relates to the technical field of multi-cylinder diesel engine cylinder body casting, and discloses a multi-cylinder diesel engine cylinder body casting mold and a using method thereof.The multi-cylinder diesel engine cylinder body casting mold comprises a bottom plate, a mold body is fixedly connected to the top of the bottom plate, supporting legs are fixedly connected to the bottom of the bottom plate, a bent frame is fixedly connected to the surface of the bottom plate, and a hydraulic rod is fixedly connected to the end, away from the bottom plate, of the bent frame; a die-casting plate is fixedly connected to the telescopic end of the hydraulic rod, a through hole is formed in the bottom of the inner wall of the die, the exhaust component comprises a sliding frame, the inner wall of the sliding frame is slidably connected with the surface of the bent frame, and an electric push rod is fixedly connected to the surface of the sliding frame. After a smelted material is poured into a mold, a hydraulic rod is started to push a die-casting plate into the mold for die-casting forming, and after the smelted material enters the mold, an exhaust part is started to enter the mold, and liquid in the mold is stirred through the exhaust part; and gas in the liquid is discharged in a stirring manner.

The invention discloses a universal liquid carrier rocket launching pad technology. A satellite general assembly test subsystem realizes recovery and detection of a satellite and forms a star cover assembly; the rocket horizontal final assembly test subsystem realizes subsystem test, matching test and total inspection test of a first-stage rocket body and a second-stage rocket body in a horizontal state, and the first-stage rocket body, the second-stage rocket body and a star cover combination body form a whole rocket in the horizontal state; the rocket horizontal transfer subsystem transfers the whole rocket to the fixed launching platform in a horizontal state; the rocket launching subsystem erects the whole rocket and achieves testing, filling and launching of the whole rocket. According to the universal liquid carrier rocket launching pad technology, by adopting a three-plane test launching mode of horizontal final assembly testing, horizontal transferring and vertical launching, the construction cost of a rocket launching site is effectively reduced, the operation process is simplified, the rocket launching efficiency and frequency are improved, and the requirement for rapid and batch launching is met.

The invention relates to the technical field of quartz sand production, in particular to a glass manufacturing quartz sand cleaning and drying integrated device which comprises a barrel, a water inlet pipe is fixedly arranged on the upper portion of the outer surface of the barrel, a motor is arranged in the middle of the bottom end of the barrel, a stirring column is fixedly connected to the driving end of the motor, and a stirring assembly is arranged on the outer surface of the stirring column. An adjusting assembly is arranged in the stirring column, a filter screen plate is arranged at the joint of the drainage pipe and the barrel body, and an unblocking assembly is arranged in the drainage pipe. Compared with the prior art, the stirring assembly is arranged on the periphery of the stirring column, the stirring rod rotates around the stirring column and can rotate under the limitation of a bevel gear and a bevel gear ring at the same time, then an eccentric wheel is driven to rotate, a circular ring is pushed to do reciprocating motion, and the circular ring drives a pull rod to slide in a cylinder; and then the spiral ring is driven to rotate in a reciprocating mode to stir the quartz sand, the caked quartz sand can be effectively scattered, and it is guaranteed that the quartz sand is loose in the cleaning and drying process.

The invention relates to a hard rock tunneling and supporting miner-bolter, which belongs to the technical field of miner-bolter, and comprises a machine body erected on a crawler belt, the middle part of the machine body is provided with a miner-bolter mechanism for crushing and tunneling hard rock, the machine body is provided with a flow guide mechanism and a conveying belt for discharging broken stones, and the top is provided with a supporting mechanism for providing temporary support; the digging and anchoring mechanism comprises a cap-shaped rotating frame, the levelness is adjusted through a first oil cylinder, the front portion of the rotating frame is connected with a pitching frame, and a second oil cylinder is used for adjusting the pitching angle. A rotating shaft is arranged on the pitching frame, a tunneling head is connected into the rotating shaft, stone jacking hammers are symmetrically arranged on the two sides of the tunneling head, and the supporting mechanism is a rock crushing cone and provided with a rotatable conical protruding part. A gravel separating disc is arranged at the rear part of the rock crushing cone, grinding balls are uniformly distributed on the gravel separating disc, and the gravel separating disc can vertically move for grinding and guiding small gravels; by means of innovative structural design and function integration, various pain points in a traditional bolter miner supporting technology are solved, and the efficiency and safety of hard rock tunnel tunneling and supporting are greatly improved.

The invention discloses a variable exhaust port device of a two-stroke engine, and aims to overcome the defects that in the prior art, although an exhaust hole with a variable opening size is formed in the two-stroke engine, the exhaust efficiency of waste gas is still limited and needs to be further improved when the engine runs at a high speed. According to the technical scheme, a main exhaust hole and an auxiliary exhaust hole are formed in the inner side wall of an air cylinder body, a main exhaust valve for controlling the opening size of the main exhaust hole is arranged in the main exhaust hole, and an auxiliary exhaust valve for controlling the opening size of the main exhaust hole is arranged in the auxiliary exhaust hole; the main control assembly controls the opening size of the main exhaust valve; the auxiliary assembly is connected with the main control assembly and controls the opening size of the auxiliary exhaust hole; wherein the auxiliary exhaust valve is in a normally closed state, and the main control assembly drives the auxiliary assembly and controls the auxiliary exhaust valve to open the auxiliary exhaust hole.

The invention belongs to the technical field of heterojunction bipolar transistors, and particularly relates to a heterojunction bipolar transistor and an MOCVD epitaxial growth method thereof. The heterojunction bipolar transistor provided by the invention comprises a transition layer arranged between a base region and an emission layer, and the MOCVD epitaxial growth method comprises the step of growing the transition layer on the surface of the base region by adopting a linear variable-temperature staged pulse metal organic chemical vapor deposition method, pH3 is continuously introduced within the total growth time of the linear variable-temperature staged pulse metal organic chemical vapor deposition method, and trimethyl indium, trimethyl gallium and silane are introduced in a single-cycle staged pulse manner; and the temperature of the reaction chamber is linearly increased from the base region growth temperature to the emission layer growth temperature within the time from the T1 initial moment to the TN initial moment. The heterojunction bipolar transistor obtained by the method provided by the invention is large in gain, low in sheet resistance and good in reliability.

The utility model is suitable for the technical field of intermediate frequency furnaces, and provides a smelting intermediate frequency furnace with high safety, which comprises an intermediate frequency furnace body provided with a heating layer and an insulating layer, the sealing cover is arranged on the intermediate frequency furnace body; the through opening is formed in the sealing cover; the movable groove is formed in the sealing cover, and the movable groove and the through opening are correspondingly formed; the movable plate is mounted in the movable groove in a sliding manner and is arranged corresponding to the through hole; the adjusting mechanism is arranged on the sealing cover and used for adjusting the area, covering the through opening, of the movable plate. According to the smelting intermediate frequency furnace with the high safety, the sealing cover can be selectively opened or closed according to needs, and non-artificially added objects are prevented from falling into the intermediate frequency furnace while the normal use requirement is met.

The invention relates to the field of semiconductor devices and radio wave ranging, in particular to an emission control system suitable for phased array power weighting. Comprising an amplitude phase control unit, a driving amplification unit, a power amplification unit, a power coupling unit, a power detection unit, a low-pass filtering unit, an analog-to-digital conversion unit, a power supply control unit and an isolator unit, the power supply control unit introduces an output signal of the power amplification unit as a feedback signal, generates control word control according to the feedback signal and an input control word initial value, and adjusts the power supply voltage provided by the power supply voltage stabilization unit to generate a dynamic variable VDD as a drain power supply voltage. Various different power outputs are generated under the condition that only one power amplifier is used, and each power output is generated when the power amplifier is in a saturated state. According to the invention, the power amplifier can work in a saturated state, the emission efficiency is improved, and the power amplifier is not easily influenced by temperature fluctuation.

The embodiment of the invention discloses an instruction processing method and device, a storage medium and computer equipment. The instruction processing method comprises the steps of obtaining a type ratio of an instruction sequence; wherein each type ratio represents the proportion of the instruction corresponding to one type in the instruction sequence; based on the type ratio, determining a transmitting path adopted by each type of instruction; and transmitting the to-be-transmitted instruction in the instruction sequence to the corresponding pipeline execution unit through the corresponding transmission path.

The invention discloses a rocket body structure capable of achieving long-term on-orbit power supply. The rocket body structure comprises a main force bearing structure, a separation device, a connector and a solar cell substrate. Wherein the separating device and the connecting joint are respectively arranged on the main force bearing structure; the main force bearing structure is connected with the solar cell substrate capable of supplying power through the connector so that the function that the solar cell substrate supplies power to the rocket body structure can be achieved. The main force bearing structure is connected with the adjacent structure through the separation device so as to achieve the structure separation function. The problems that the residual value of the tail sub-stage of an existing carrier rocket is difficult to utilize, and track resources are occupied are solved.

The present invention relates to a nitrogen spring loading force type pressure reducing valve and its preset adjustment device, wherein the valve core comprises: an upper core, a threaded air charging channel is arranged at the top; a connecting gasket is arranged at the inner circumference of the bottom of the upper core; a bellows, a first end of which is fixed to the bottom of the upper core and the connecting gasket; a lower core, a top of which is connected to the second end of the bellows circumferentially, and an air chamber is formed between the upper core, the bellows and the lower core; a guide sleeve is arranged at the middle of the lower core, a sliding elastic structure movably connected to the threaded air charging channel is arranged in the guide sleeve, and an air path connected to the threaded air charging channel is arranged at the lower part of the guide sleeve to fill nitrogen into the air chamber; a valve stem is arranged at the bottom of the lower core, and a lifting valve core is arranged at the bottom of the valve stem. And, an air charging control structure, the output end of which is connected to the threaded air charging channel, the upper part of the upper base is provided with an air charging control structure, and a spherical accommodating cavity is provided between the upper base and the lower base for accommodating the valve core, completely simulating the environment of a spherical pressure reducing valve.

The utility model discloses a positive pressure dust remover convenient for bagging, which relates to the technical field of dust removers and comprises a compaction bin mounted on the ground through a fixing frame, a positive pressure conveying pipeline is arranged at the top of the compaction bin, and the bottom end of the compaction bin is connected with an annular blanking pipe through a connecting pipe bin. By means of the bagging assembly, dust in conveying can be subjected to dust falling treatment conveniently, a plurality of dust bags do not need to be sequentially fixed to the dust discharging valve, workers do not need to directly replace the dust discharging valve below the dust discharging valve, the probability that the dust escapes all around is reduced, and the dust discharging efficiency is improved. The positive pressure dust remover is simple in structure and convenient to operate, operators can be protected, and the problems that when a traditional positive pressure dust remover is used, a star-angle closed valve and a spiral material returning machine are adopted for discharging, a large amount of dust escapes during discharging, meanwhile, when the dust is bagged, collecting bags are usually put into an ash discharging pipe in sequence, the process is tedious, and great potential safety hazards are brought to physical and psychological health of the operators are solved.

The invention provides a reciprocating ejection type unmanned aerial vehicle carrying vehicle which comprises a vehicle body, an ejection table, a sliding block, a first sliding rail, a fixed pulley, a locking mechanism, a winding mechanism, a feeding device, a locking mechanism and the like. The kinetic energy of the vehicle body is used for providing elastic potential energy for the torsion reel, so that the unmanned aerial vehicle is catapulted to take off, an expensive catapulting power device does not need to be additionally arranged, two unmanned aerial vehicles can be launched in a front-back movement reciprocating period, and the launching efficiency is improved.

The invention relates to the technical field of plasma electrodes, in particular to an intelligent temperature control and bubble elimination plasma electrode system and a control method thereof.The intelligent temperature control and bubble elimination plasma electrode system comprises an electrode tip, a ceramic insulating layer, an outer electrode, a miniature temperature sensor array, an electromagnetic field modulation device and an optimized electrode surface microstructure design, the outer layer is a ceramic insulating layer, the outer layer of the ceramic insulating layer is an outer electrode, the miniature temperature sensor array covers a key working area and realizes a temperature acquisition function by connecting a temperature sampling circuit in parallel, and the electromagnetic field modulation device enables the ceramic insulating layer to generate micro vibration by regulating and controlling the electromagnetic field intensity and frequency so as to promote bubble discharge. The method has the effect that the size of the plasma electrode is not increased while temperature acquisition and bubble removal are achieved.

The invention discloses a broadband out-of-phase power amplifier transmitting system based on FPGA, which comprises an FPGA out-of-phase signal generating part and an out-of-phase class E power amplifying part; wherein the FPGA out-of-phase signal generating part comprises an out-of-phase decomposition module, a linear digital interpolation phase modulation module, a single-bit quantizer and a high-speed parallel-to-serial converter; the out-of-phase class E power amplifying part is designed by integrating the class E power amplifier and the out-of-phase power superposition part. The technical implementation of the invention makes the radio frequency front end digital and integrated, the transmitting frequency is flexible and controllable, the realization difficulty of the transmitter is reduced, and the transmitting efficiency of a high peak-to-average ratio signal is improved.

The invention belongs to but not limited to the technical field of antennas, and particularly relates to an automatic tuning transmitting antenna and method for RS103 testing, and the antenna comprises an antenna array pipeline which enables a length-variable antenna array to stretch out and draw back in the pipeline; the tunable antenna array is made of soft and thin copper foil, can bear large current and is wound on a rotary column of the program control motor, and the length of the antenna array is adjusted through rotation of the program control motor; the optical fiber interface is connected with an optical fiber of a program control motor, and program control of the motor used by the antenna array is completed through program control software of the test system; the coaxial port is connected with an output power coaxial line of the radio frequency power amplifier, so that the output power of the radio frequency power amplifier is transmitted to the antenna array, and the antenna array generates required field intensity at a position of 1m; and the program control motor is used for controlling the lengths of the antenna arrays at different frequencies, controlling the rotation of the motor through the program control software of the test system, and adjusting the lengths of the arrays.

The invention relates to the field of electron tubes, and discloses a low-evaporation three-layer film cathode assembly for a space traveling wave tube, which comprises a tungsten substrate positioned on a substrate; the first layer of rhenium film and the rhenium film cover the tungsten substrate; the carbon nanotube composite material layer is deposited on the rhenium film; the second osmium-tungsten film is deposited on the carbon nanotube layer; the third osmium-ruthenium film is deposited on the osmium-tungsten film; wherein the thicknesses of the rhenium film, the carbon nanotube layer, the osmium-tungsten film and the osmium-ruthenium film are respectively controlled to be 0.5-2 mu m, 10-50 nm, 50-200 nm and 20-100 nm, and the carbon nanotube composite material layer is obtained by growing on the rhenium film through chemical vapor deposition. By adopting the osmium-tungsten and osmium-ruthenium films with high crystallinity and the optimized carbon nanotube composite material layer, the electron emission efficiency of the cathode assembly is remarkably improved, so that the energy required by electron emission is reduced, and the electron output quantity under the same working condition is increased.

A slab waveguide slot antenna unit provided by the present invention comprises a radiation unit, an excitation unit and a feed unit, the radiation unit comprises a radiation square cavity and a radiation slot, the excitation unit comprises an excitation square cavity and an excitation slot, the feed unit comprises a feed square cavity and a feed slot, and the feed slot is connected with the excitation square cavity. According to the invention, a special radiation slot design is adopted, so that the radiation aperture efficiency is improved, more input energy can be effectively radiated into a free space, and the transmitting and receiving efficiency of the antenna is improved; the antenna comprises the gaps in the excitation square cavity and the feed square cavity, so that the feed structure is simplified, the antenna is easier to manufacture and maintain, and the cost and the complexity are reduced; the simplification of the feed structure also helps to improve the stability and reliability of the antenna. The whole waveguide antenna has axial symmetry, so that manufacturing and adjustment are more convenient. And the axisymmetric structure is beneficial to keeping the symmetry and consistency of the antenna, so that the stability of the performance is improved.

The utility model discloses a resin reaction kettle water vapor removing device which comprises an outer box body, a support is fixedly connected to the outer side wall of the outer box body, a reaction kettle is fixedly connected to the interior of the outer box body, a water storage cavity is formed between the reaction kettle and the outer box body, and a feeding port is formed in the top of the reaction kettle and penetrates through the outer box body. Water vapor removing mechanisms are symmetrically arranged on the left side wall and the right side wall of the reaction kettle, and a bidirectional driving device for driving the water vapor removing mechanisms to operate is arranged on the outer side of the outer box body. Through the arrangement of the water vapor removing mechanism and the bidirectional driving device, the overall operation cost of the device can be lower, a double-shaft motor is installed outside, heat dissipation is easier, and the service life of the device is prolonged; through the arrangement of the exhaust port, the steam is exhausted through the exhaust port, and the fan blades are matched, so that the air circulation between the reaction kettle and the outside is smoother, and the steam exhaust efficiency is improved.

The utility model belongs to fire extinguishing device technical field, specifically is a kind of helicopter external fire extinguishing device, including bucket main part;The upper portion of bucket main part is provided with annular support plate, annular support plate is provided with air pump, the bottom of bucket main part is hingedly connected with barrel bottom cover, the lower portion of bucket main part is provided with drainage magnetic valve, the inboard of bucket main part is provided with lining support, lining support is provided with mixing mechanism, multiple lining supports are vertically and uniformly provided with reinforcing ring stand, mixing mechanism includes the air pipe support setting in annular support plate, air pipe support includes multiple annular air pipes vertically and uniformly arranged, multiple air mixing elements are uniformly provided on annular air pipe, one group of through pipes is respectively arranged between multiple annular air pipes, air pump is provided on annular support plate, connecting pipe is provided on air pump, the other end of connecting pipe is provided with arc shunt pipe, the lower end of arc shunt pipe is connected with the uppermost annular air pipe, it can mix uniformly fire extinguishing agent and liquid in the bucket.

The utility model discloses an unmanned ship body, which belongs to the technical field of unmanned ships and comprises a ship body, one end of the ship body is fixedly connected with a fixing plate, the surface of the fixing plate is provided with a signal transmission module, and the other end of the ship body is provided with a protection box. By arranging the rotating mechanism, the camera shooting equipment arranged on the ship body can be rotationally adjusted, the water surface monitoring range of the ship body and the angle adjusting flexibility of the camera shooting equipment are improved, meanwhile, the signal transmission module is arranged on the ship body, signals can be conveniently transmitted to workers, and therefore the workers can rapidly receive the signals, and the working efficiency is improved. According to the ship body, the working efficiency of the ship body is improved, a signal lamp on the ship body can be driven to swing by arranging a swing mechanism, so that the display range of the signal lamp is expanded, a worker can rapidly receive a signal transmission, and the problem that the signal cannot be received in time when the ship body is shielded by other objects is solved; and the ship body signal emission efficiency is improved.

The present invention relates to the technical field of emission control, and in particular to an emission control method, system and medium for medical radioactive waste liquid, which are applied to N decay tanks connected in sequence, wherein valves are arranged at the ends of the N decay tanks; the method comprises: averaging a plurality of actual emission amounts and adding a redundant emission amount to obtain an expected emission amount; calculating the capacity of a single decay tank and the divisor of the expected emission amount, and determining an ideal temporary storage period according to the decay time threshold, the divisor and the emission period; determining an initial temporary storage period of the decay tank according to the activity range of the decay tank, adjusting the radioactive waste liquid in the decay tank within the activity range of the decay tank, so as to adjust the initial temporary storage period of the decay tank to an ideal temporary storage period; controlling the N decay tanks to sequentially open corresponding valves every other ideal temporary storage period to discharge the radioactive waste liquid; the present invention can improve the emission efficiency of radioactive waste liquid.

The invention provides a power industry carbon emission efficiency measuring and calculating method and device based on Non-radial DDF and SBM models, and the method comprises the steps: carrying out the decision-making unit division of a to-be-measured region, and obtaining independent decision-making units; related information of each independent decision-making unit is collected, and the related information comprises the fossil fuel consumption of each independent decision-making unit, the carbon content of fossil fuel unit energy, the employment number of the power industry and the fixed capital net value of the power industry; an SBM model and a Non-radial DDF model are constructed, and a comprehensive carbon emission efficiency evaluation system is constructed based on the constructed SBM model, the Non-radial DDF model and the related information of each independent decision unit; and determining the carbon emission efficiency based on the comprehensive carbon emission efficiency evaluation system. In this way, the carbon emission efficiency of the power industry can be measured and calculated more accurately, the overall carbon emission efficiency of the power industry is improved, and the regional carbon emission cost is reduced.

The present invention provides a reciprocating ejection type UAV carrier vehicle, which includes a vehicle body, a launching platform, a sliding block, a first sliding rail, a fixed pulley, a locking mechanism, a winding mechanism, a feeding device, a locking mechanism, etc. The vehicle body has the advantage that, in the process of the vehicle body moving back and forth, the kinetic energy of the vehicle body itself can be used to provide elastic potential energy for a torsion reel to eject the UAV, thereby eliminating the need for the additional installation of an expensive ejection power device, and two UAVs can be launched in one reciprocating cycle, thereby improving the launching efficiency.

The invention discloses a gain spectrum adjustable laser medium based on structure compounding and a preparation method thereof. According to the gain spectrum adjustable laser medium, hot melting structure compounding is carried out on at least two types of laser media, relative structure proportion parameters between different laser media are designed, and controllable tuning of the gain spectrum of the laser medium is achieved. From the perspective of the matrix materials, the active ions can simultaneously have the characteristics of various local environments, such as high glass doping concentration, large bandwidth, high crystal thermal conductivity and optical anisotropy due to the structural composition of various matrix materials; from the perspective of the active ions, unnecessary microscopic energy transfer among the active ions can be avoided through partition compounding of different active ions, and the emission efficiency is improved. According to the invention, through structural composition of various laser media and accurate regulation and control of the gain spectrum of the laser media based on structural proportion parameters, application requirements of special solid lasers and special optical fiber preforms can be met.

Disclosed are a bidirectional TVS device and a preparation method thereof. The device comprises: a substrate of a first doping type; an epitaxial layer of a second doping type located on the substrate, wherein the second doping type is opposite to the first doping type; an isolation structure extending from the surface of the epitaxial layer into the substrate, defining a first region, a second region, a third region, a fourth region and a fifth region isolated from each other in the epitaxial layer; wherein a first diode, a second diode, a third diode and a fourth diode are respectively formed in the first region, the second region, the third region and the fourth region, and a triode is formed in the fifth region; and a metal interconnection structure connecting the cathodes of the first diode and the third diode to the first potential of the triode, and connecting the anodes of the second diode and the fourth diode to the second potential of the triode.

The utility model discloses a mold device capable of exhausting smoke under negative pressure, which comprises a mold assembly, a mold assembly, a mold cover, a mold cover, a mold cover and a mold cover, the mold assembly comprises an upper mold, a lower mold and a sand core positioned between the upper mold and the lower mold, a cavity is formed among the upper mold, the lower mold and the sand core, and the cavity is filled with metal liquid to form a required casting, a smoke exhaust channel is arranged on one horizontal side of the lower mold or the upper mold, and the cavity is communicated with the outside through the smoke exhaust channel; the smoke exhaust assembly comprises a negative pressure pipe extending in the horizontal direction, a ventilation pipe located in the negative pressure pipe and air supply equipment used for supplying air to the ventilation pipe, one end of the negative pressure pipe is connected with the smoke exhaust channel, the ventilation pipe extends along the negative pressure pipe, an air outlet of the ventilation pipe is arranged back to the smoke exhaust channel, and the air supply equipment is used for supplying air to the ventilation pipe. A negative pressure channel is formed between the ventilation pipe and the negative pressure pipe, and the ventilation pipe conducts ventilation so that smoke can flow to the negative pressure channel from the smoke exhaust channel. According to the utility model, the flue gas can be quickly discharged, and the product yield is improved.

The utility model provides a collecting device for a shrimp breeding pond. The collecting device comprises a lifting device, a cover body, an excrement pipeline, a shrimp shell pipeline and a filtering device, the input end of the excrement pipeline is connected with the bottom of the shrimp culture pond, and a filter screen is arranged at the input end of the excrement pipeline; the cover body covers the bottom of the shrimp culture pond and covers the input end of the excrement pipeline, and a discharge channel is formed between the cover body and the bottom of the shrimp culture pond; the shrimp shell pipeline is arranged in the cover body in a penetrating manner, the input end of the shrimp shell pipeline is communicated with the discharge channel, and the output end of the shrimp shell pipeline is connected with the filtering device; the lifting device is connected with the cover body and is used for closing and opening the discharge channel and adjusting the size of the discharge channel; according to the device, shrimp shells and shrimp faeces can be discharged at the same time, the size of the discharging channel can be adjusted according to the sizes of live shrimps in different growth stages, the fallen shrimp shells can pass through the discharging channel, the live shrimps are blocked at the same time, and the shrimp shells and the shrimp faeces in the shrimp culture pond are effectively discharged.

This utility model belongs to the field of kiln heat recovery, specifically a flue gas waste heat recovery kiln preheating device, including a kiln body. A door panel is rotatably connected to one side of the kiln body, and a heating pipe is fixedly connected to the top of the kiln body. A vibration mechanism is provided at the other end of the heating pipe. The base of the vibration mechanism plays a major supporting role, and the top cover can improve the emission efficiency of high-temperature flue gas. The high-temperature flue gas passes through a purification component to filter impurities and dust in the gas. The heat exhaust pipe can be connected to external equipment through a flange, and the filtered high-temperature flue gas is transported to the required equipment through the heat exhaust pipe. When the cam rotates continuously, the protruding part can push the box to vibrate continuously through rollers and extension rods. The spring between the box and the base can improve the vibration effect, vibrating and removing the impurities and dust particles filtered in the purification component, ensuring the filtration efficiency of the purification component.