294results about How to "Clear in time" patented technology

The utility model relates to a printed circuit board (PCB) inner layer printing ink coating device, which belongs to the technical field of printing ink coating, and comprises a material collecting box, a material guide hopper, two supports and a coating roller, one side of the material collecting box far away from the ground is fixedly connected with one side of the material guide hopper, the two supports are respectively and fixedly arranged on one side of the material collecting box far away from the ground through bolts, and the coating roller is fixedly arranged on the other side of the material collecting box far away from the ground. The two brackets are distributed in a mirror symmetry manner, and the outer side of the coating roller is mounted on one side of each bracket; and two sets of ink scraping and recycling mechanisms in mirror symmetry are mounted on the side, away from the ground, of the material collecting box. According to the PCB inner layer ink coating device, the function of automatically recycling ink can be provided, the ink on the coating roller can be effectively recycled and reused, waste of the ink is avoided, the production cost is reduced, meanwhile, the ink on the coating roller can be removed in time, drying and curing of the ink are avoided, and the production efficiency is improved. Therefore, the printing ink recovery effect of the existing PCB inner layer printing ink coating device is effectively improved.

The invention relates to a heating furnace, in particular to a biomass fuel furnace capable of automatically removing slag, which comprises a combustion chamber, an upper auger, a lower auger and a feed hopper. The automatic slag removing device is characterized in that a slag falling opening is formed in the bottom of the combustion chamber, a slag discharging plate is arranged below the combustion chamber, and a cylindrical cam is arranged between the first motor and the auger and controls the slag discharging plate to reciprocate so as to automatically remove slag. Compared with the prior art, automatic slag removal is achieved, and fire can be prevented from spreading reversely.

The invention relates to the technical field of liquid ammonia liquid level meters, in particular to a liquid ammonia liquid level meter capable of automatically cleaning impurities and a method thereof.The liquid ammonia liquid level meter comprises a sampling pipe and a floating ball liquid level sensor installed in the sampling pipe, the floating ball liquid level sensor is used for detecting the position of a floating ball and the height of the liquid level, and the floating ball liquid level sensor transmits detection data to a processor; a heat tracing pipe is arranged on the outer wall of the sampling pipe, a flow meter for introducing inert gas is arranged at the upper end of the sampling pipe, and a blow-down valve is arranged at the lower end of the sampling pipe. Whether the floating ball is stuck or not is judged by automatically detecting the position of the floating ball, then cleaning is achieved by heating and nitrogen introduction for purging under the condition that the floating ball is stuck, and due to the integrated automation technology, the accuracy of liquid level measurement of liquid ammonia and the stability of the system are remarkably improved. According to the device, impurities attached to the liquid level meter can be removed in time, the floating ball is prevented from being jammed, and accuracy and reliability of liquid level measurement data are ensured.

The utility model relates to material adding equipment, in particular to a powdery material metal removing device and an automatic powdery material sorting and adding system, which comprises a material storage device, a level gage, a first conveying pipe, a metal detection device, a powdery material metal removing device, a switch valve, a material source and a control unit. The material level indicator is used for detecting the material level, the first material conveying pipe is connected between the material source and the material storage device, and the powdery material metal removing device is arranged on the first material conveying pipe. The switch valve and the metal detection device are sequentially arranged between the material source and the powdery material metal removal device on the first conveying pipe, and the powdery material metal removal device comprises a shell, a partition plate, a first valve, a second valve, a first electromagnet and a second electromagnet. The automatic feeding device can automatically add materials, automatically remove impurities on line, reduce blocking of the conveying pipe and reduce labor intensity of workers.

The invention discloses a heat dissipation type remote network automatic control server, and relates to the technical field of control servers, the heat dissipation type remote network automatic control server comprises a control server case, a dustproof plate arranged on the control server case, a heat dissipation module installed on the dustproof plate and equipped with a power supply, and a dustproof partition plate arranged on the dustproof plate, the dustproof partition plate is fixed to the dustproof plate through a connecting piece, the dustproof plate is provided with a disassembly and assembly mechanism matched with the control server case, and the dustproof plate and the heat dissipation module can be rapidly disassembled from the control server case through the disassembly and assembly mechanism; the ash removal unit is mounted on the heat dissipation module; through the integrated design of the dustproof plate and the heat dissipation module, the cleaning process is simplified, a user can easily disassemble the dustproof plate, meanwhile, the heat dissipation module can be disassembled, simultaneous cleaning is facilitated, the problem that dust of fan blades in traditional equipment is difficult to clean is solved, the convenience of equipment maintenance is improved, and the cleaning and maintenance work is simplified.

A plasma-assisted fine abrasive particle jet polishing machining and manufacturing device comprises a plasma generating system, a fine abrasive particle jet system and an auxiliary machining system, a loading disc of the auxiliary machining system is installed on one side of a workpiece converter, a rotating shaft is arranged at the axis position of the loading disc, and the rotating shaft is in transition fit with a rotator; the rotating speed control box controls the rotating speed of the rotating shaft; the tool converter is installed at the upper end of the connecting frame, the left end and the right end of the connecting frame are connected with the air suction pump through guide pipes respectively, and the bottoms of the guide pipes are communicated with the collecting chamber. The plasma generation system and the fine abrasive particle injection system are both located above the tool converter, the fine abrasive particle injection system is installed on the loading disc, and the plasma generation system is installed on the other side of the workpiece converter. The invention further provides a plasma-assisted fine abrasive particle jet polishing machining and manufacturing method. According to the invention, chips are easy to remove, the finishing surface shape precision is higher, and the processing controllability is high.

The invention relates to the field of agricultural machinery, and discloses a rice threshing device with a drying function, comprising: a crushing assembly used for preliminarily separating harvested rice so as to provide convenience for subsequent threshing operation; the extrusion assembly can automatically turn over rice to be threshed, and the double-face threshing function is achieved; the crushing assembly is used for crushing rice, the drying assembly is used for removing waste and dust generated in the threshing process and drying the threshed rice through a heating function, and the driving assembly is used for driving the crushing assembly and the telescopic assembly to synchronously operate to ensure that the threshing process is efficiently carried out; and the screening assembly is used for screening the threshed rice and waste materials generated in the threshing process, and further separation of the materials is achieved. Preliminary crushing is firstly carried out through the crushing assembly, the extrusion assembly achieves double-face extrusion through hydraulic control, it is ensured that grains fully fall off, the telescopic assembly can accurately adjust the threshing strength according to the variety and maturity of different rice, and the threshing efficiency is improved to the maximum extent.

The invention discloses application of indobufen in preparation of a medicine for preventing and treating diseases induced by excessive ferroptosis, and particularly relates to the technical field of medicines. The invention relates to an application of indobufen in preparation of drugs for preventing and treating diseases induced by excessive ferroptosis by inhibiting ferroptosis. The indobufen is a ferroptosis inhibitor. The invention provides a new application of indobufen alone or in combination with other drugs in promoting wound healing. Cell and animal level experiments prove that the indobufen can inhibit the local ferroptosis level of the wound surface, so that the wound surface healing is obviously accelerated, and the indobufen has a good clinical application prospect.

A robot-controlled electrochemical ultrasonic shear rheological polishing manufacturing method comprises the following steps: dissolving the anode surface of a workpiece and forming a passive film by using electrochemical reaction, enabling nano abrasive particles in an electrochemical polishing solution to generate micro jet flow to shear and remove the passive film by using an ultrasonic cavitation-shear composite effect, and then continuing to perform the electrochemical reaction. The invention discloses a robot-controlled electrochemical ultrasonic shear rheological polishing manufacturing device which comprises a box body, an ultrasonic auxiliary assembly, a power supply auxiliary assembly, an electrochemical polishing solution circulation auxiliary assembly, a polishing assembly and a robot control assembly. The ultrasonic auxiliary assembly, the power supply auxiliary assembly, the electrochemical polishing liquid circulation auxiliary assembly and the robot control assembly are located at the outer end of the box body. According to the method, the polishing efficiency can be greatly improved, and the near-atomic-scale polishing precision of atoms can be achieved.

The utility model discloses a floating type water source filter which comprises a main frame, floating barrels are connected to two sides of the main frame, a central shaft is horizontally and fixedly mounted in the middle of the main frame, a filter cartridge capable of rotating on the central shaft is mounted on the central shaft, and a motor for driving the filter cartridge to rotate is mounted at the upper part of the main frame; and a submersible pump is mounted in the filter cartridge and conveys high-pressure water to flush the cylindrical filter screen of the filter cartridge through the in-screen flushing pipe and the out-screen flushing pipe. The device can flush the inside and outside of the cylindrical filter screen, prevents the filter screen from being blocked to increase the water pumping resistance, and can be used for filtering water sources of ponds, reservoirs, rivers and lakes.

The invention discloses a smart health management system and method based on Internet of Things, and particularly relates to the technical field of privacy protection. Physiological data, health data and identity information of old people are encrypted by applying a homomorphic encryption technology; after encryption is completed, the physiological data and health data of the old people are integrated and then are separated from identity information to be stored in the intelligent equipment terminal, the data transmission and storage process is always kept in an encrypted state, and the risk of data leakage is effectively reduced; according to the invention, data training is carried out on the health comprehensive early warning model at the nodes, and then the health comprehensive early warning model training results of the nodes are aggregated to obtain the global health comprehensive early warning model, so that the data privacy can be ensured, and machine learning modeling can be carried out by using dispersed data; the privacy risk alarm is sent to the system management center when it is detected that the system has the privacy risk, then the privacy protection scheme is adjusted, and the duration of the privacy risk can be shortened.

The invention relates to the technical field of fallen leaf cleaning, and discloses a hedge fallen leaf cleaning, blowing and sucking all-in-one machine which comprises a bottom plate, a supporting plate is fixedly connected to the top of the bottom plate, an engine is fixedly connected to the top of the supporting plate, a fan is fixedly connected to the output end of the engine, and a reciprocating assembly is arranged in the bottom plate. A swinging assembly is arranged on the outer wall of the bottom plate, two supporting rods are fixedly connected to the rear side of the top of the bottom plate, a filtering box is fixedly connected to the tops of the supporting rods, a filtering assembly and a cleaning assembly are arranged in the filtering box, and a collecting box is connected to the bottom of the filtering box through a connecting piece; the motor is fixedly connected to the interior of the bottom plate. By arranging a reciprocating assembly and a swinging assembly, a motor drives a sector gear to drive a gear ring and a sliding plate to reciprocate, then a first rack plate is linked to drive a half gear to intermittently rotate, and finally left-right swinging of a suction cup is achieved.

The invention belongs to the technical field of sewage treatment, and particularly relates to a drainage grille cleaner which comprises a main plate, two side plates are connected to the main plate, an opening is formed between the lower portion of the main plate and the two side plates, a grille is connected to the opening, chains are arranged on the sides, close to each other, of the two side plates, and a plurality of connecting blocks are connected to the chains at intervals. A fixing shaft is connected between every two connecting blocks corresponding in position in the horizontal direction, and the side, close to the main plate, of each fixing shaft is connected with a row of cleaning teeth used for cleaning the grating. The chain drives the fixed shaft, the cleaning teeth, the fishing teeth and the lengthened teeth to move, the limiting block limits the rotating angle of the lengthened teeth, the fishing teeth and the lengthened teeth fish out garbage blocked by the grating out of the water surface, more and larger garbage can be fished out through the arrangement of the lengthened teeth, the fished-out garbage can be prevented from sliding off, and therefore the garbage can be fished out in time, and the working efficiency is improved. The cleaning teeth can also clean out garbage clamped in the gaps of the grating, so that blockage is prevented, the water flow speed is ensured, and the sewage treatment efficiency is improved.

The embodiment of the invention provides a method for optimizing the roughness of the side wall of a glass through hole, which is used for solving the technical problem of high roughness of the side wall of the glass through hole manufactured by the existing glass through hole technology. According to the method, the femtosecond laser is adopted, and the material structure of the prefabricated through hole area is uniformly and deeply changed in a thermal cycle mode, so that the chemical etching sensitivity of the prefabricated through hole area is remarkably improved, and the prefabricated through hole area is more easily and uniformly removed; by optimizing the components and proportion of the etching liquid, the etching liquid uniformly covers and acts on the surface of the material in the modified area of the prefabricated through hole in the subsequent chemical etching stage, the modified material is corroded at a uniform speed, and corrosion residues are removed in time. Through etching liquid temperature control and ultrasonic power control, the mixing and reaction uniformity of the etching liquid is enhanced, and uniform and refined etching of the prefabricated through hole modification area is realized. And furthermore, the uniformity of glass through hole corrosion and the material removal precision are greatly improved, and the roughness of the side wall is obviously reduced from 1.257 microns to 100 nanometers or below.

The invention discloses a dosing device for sewage treatment and recycling of a waterworks, and relates to the technical field of sewage treatment. Comprising a sewage pool, a sewage inlet pipe is installed on the outer side of one end of the sewage pool, a partition plate is installed between the inner sides of the sewage pool and divides the sewage pool into two impurity removal areas and a dosing cavity, and a water outlet pipe is installed on one side of the partition plate and located in the dosing cavity; the sewage discharging structure is arranged on the inner side of the sewage pool and is used for discharging sewage; the impurity removal structure is arranged in the impurity removal area and is used for removing impurities in the sewage in the impurity removal area. By arranging the impurity removal structure, floating objects and sediments can be removed in time, harmlessness of the impurities to water quality can be reduced, so that the quality of treated water is improved, the treated water is closer to the drinking water standard, meanwhile, damage to equipment can be reduced, subsequent water treatment can be more effectively carried out after a large number of visible impurities are removed, and the service life of the equipment is prolonged. The efficiency of the whole water treatment system is favorably improved.

The invention discloses a waste heat boiler mechanical vibration deashing process, which is characterized in that a plurality of vibration device groups are arranged on a waste heat boiler, and a control device controls the vibration device groups to be started according to the following rule in sequence: the first vibration device group starts vibration, and stops vibration after vibration corresponds to a set time, and the second vibration device group stops vibration after vibration corresponds to a set time; then the second rapping device set starts rapping, rapping is stopped after rapping corresponds to the set time, rapping is sequentially conducted according to the sequence till the last rapping device set stops rapping, and after the last rapping device set stops rapping, an ash tank replacement time period is reserved; the period from the beginning of rapping of the first rapping device group to the end of the replacement of the ash tank is the whole rapping period, and the control device controls each rapping device group to circularly rap according to the rapping rule of the rapping period. By the adoption of the process, the service life of the waste heat boiler can be prolonged, the electricity utilization safety performance is improved, and a forklift driver transporting the ash tank can also master the time point for going to an operation area to replace the ash tank.

The invention relates to the technical field of absorption towers, in particular to a monitoring and processing device for blockage of an inlet filter screen of an absorption tower slurry circulating pump, which comprises: a main body module comprising an absorption tower unit, an inlet unit, a circulating pump unit, a first pollution discharge unit and a second pollution discharge unit; the flushing unit comprises a monitoring unit, a backwashing unit, a cooling unit and a collecting unit; the device can quickly judge abnormal reasons, can timely wash the inlet filter screen main body, greatly shortens accident treatment time, can timely remove glass flakes falling off from the absorption tower out of the tower, ensures long-term safe and stable operation of the absorption tower, and ensures environmental protection and safety.

The invention provides a large yellow croaker body surface white spot disease image acquisition device based on a YOLOv5 algorithm. The large yellow croaker body surface white spot disease image acquisition device comprises a flow velocity simulation water tank (1); the flow velocity simulation water tank comprises a large yellow croaker image acquisition area (5), a flow velocity control area (25) and a water environment control area (13); an image data acquisition system is arranged at the large yellow croaker image acquisition area and comprises a plurality of cameras connected with a computer; the flow velocity simulation water tank firstly limits the swimming action of the detected pseudosciaena crocea to enable the action of the pseudosciaena crocea to be matched with the working parameters of the image data acquisition system, and then the image data acquisition system acquires the body surface image of the pseudosciaena crocea, analyzes the image based on a YOLOv5 algorithm, or trains the YOLOv5 algorithm by the acquired image; according to the invention, a large amount of independent, multi-angle and clear image data of the sick pseudosciaena crocea can be acquired, and the image data of the sick pseudosciaena crocea under the conditions of different turbidity, different illumination intensities and group movement in a culture environment can be simulated, so that the training effect of the YOLOv5 algorithm is more remarkable.

The utility model discloses a steel plate degreasing, soaking and cleaning machine which comprises a main body assembly, a first cleaning tank, a second cleaning tank and a second cleaning tank. The cleaning assembly comprises a baffle, a portal frame, a motor, a lead screw, a sliding block, a connecting pipe and a brush. The motor is connected to the middle of the side edge of the portal frame through a screw, the lead screw penetrates through the portal frame and is rotationally connected to the output end of the motor, the sliding block is slidably connected to the lead screw, the connecting pipe is welded to the lower end of the sliding block, and the brush is connected to the lower portion of the connecting pipe through a screw. The problems that in the degreasing process, a used cleaning agent can generate foam and float on the water surface, the contact efficiency between the cleaning agent and the metal surface can be reduced due to the existence of the foam, cleaning is not thorough, complete removal of oil dirt can be affected, the degreasing effect is affected, and meanwhile a large amount of foam can affect the sight line, and the cleaning efficiency is reduced are solved.

The invention discloses energy-saving and environment-friendly tail gas treatment equipment for a pelletizer, and relates to the technical field of tail gas treatment.The energy-saving and environment-friendly tail gas treatment equipment comprises a tail gas inlet pipe and further comprises a humidifying and cooling device, a powder removing device, a drying assembly, an air exhaust fan and a spraying device, and the spraying device is used for removing harmful gas in gas; the humidifying and cooling device comprises a humidifying tank arranged at the gas outlet end of the tail gas inlet pipe and a first spray head for injecting water mist into the humidifying tank; the powder removing device comprises an impurity removing tank which is arranged on one side of the humidifying tank and communicates with the air outlet end of the humidifying tank. The driving assembly drives the spiral piece to move upwards and rotate, the multiple scraping assemblies are used for scraping attachments on the surface of the spiral piece, the spiral piece is cleaned, and the effect of preventing the attachments from being deposited on the surface of the spiral piece is achieved. And the attachment and the liquid mixed with the impurities are dried by using the dried gas, so that harmful gas is prevented from being released when the drying assembly is cleaned.

The invention discloses a sand table device for territorial space planning, and belongs to the technical field of sand tables, the sand table device specifically comprises a square box, the bottom wall of the square box is provided with a four-direction rotating and erecting mechanism, a sand table is arranged above the four-direction rotating and erecting mechanism, and the four-direction rotating and erecting mechanism controls the sand table to rotate and erect back and forth and left and right; and the four-direction rotating and erecting mechanism comprises a mounting frame fixed on the bottom wall of the square box, the mounting frame is rotatably connected with a first universal shaft, and one side of the first universal shaft is provided with a motor. According to the sand table device for territorial space planning, through the arrangement of the four-direction rotation erecting mechanism, overturning erecting of the sand table in the front, back, left and right directions is achieved, after the sand table is erected, a worker can conveniently plan the sand table when standing, bending operation is not needed, planning operation can be conveniently conducted on the center of the large sand table, and the working efficiency is improved. And after the sand table is jacked up, multi-angle display to surrounding personnel is facilitated.

The invention discloses a boiler hanging device, and relates to the field of boiler hanging. Comprising a walking chassis mechanism, a supporting frame fixed above the walking chassis mechanism and an extension arm extending out of the upper end of the supporting frame. A plurality of groups of winches are mounted on the extension arm, slings on the winches penetrate through the pulley block to be connected with a clamping assembly, and the outer side of the boiler body is wrapped with the clamping assembly through steel cables; the clamping assembly comprises a clamping base at the bottom, a shaft rod installed in the clamping base and a driven assembly installed above the shaft rod. The clamping assembly adopts a unique eccentric disc and driven assembly structure, a shaft rod is driven by a driving motor to rotate, so that a clamping pad is tightly attached to the outer side of the boiler body, a steel rope is wound by a steel rope winding disc to form an enclosure structure to clamp the boiler, the boiler is effectively prevented from shaking or sliding off in the hoisting process, and the hoisting safety is greatly improved.

The utility model relates to the technical field of fracturing trucks, in particular to a fracturing truck which comprises a fracturing truck body, the fracturing truck body comprises a bottom plate, hinge seats are connected to the centers of the two side walls of the bottom plate through bolts, and positioning wing plates are hinged to the hinge seats. The interior of the positioning wing plate is hollow, the bottom end of the positioning wing plate is longitudinally connected with a pair of supporting rods in a sliding mode, a positioning plate is installed at the bottom ends of the supporting rods, a lifting assembly connected with the supporting rods is installed in the positioning wing plate, and a cleaning assembly acting on the supporting rods is installed on the positioning wing plate. And a positioning assembly acting on the positioning wing plate is mounted on the bottom plate. The fracturing truck has the advantages that the positioning wing plate can rotate, and the lifting assembly drives the positioning plate to descend and make contact with the ground, so that the fracturing truck body is stably positioned; and oil stains on the supporting rod are removed in time through cooperation of the annular scraping plate and the cleaning assembly and are prevented from corroding the supporting rod.

The present invention belongs to the field of testing technology, and can detect physical indicators such as breaking strength, breaking elongation, breaking strength, breaking time and strength-extension curve of various single yarns or fibers, and particularly relates to an automatic tensile meter length and weight detection device for ultra-high-strength fibers and a working method thereof. It includes a clamping assembly, a shearing assembly and a weighing assembly. The present invention provides a relatively smooth and clear path for the fiber during detection by using the clamping assembly, the shearing assembly and the weighing assembly in coordination, and automatically cuts the fiber while moving quickly along a predetermined path, and can quickly record the detected data, and feed back to the control system through the movement of each component, adjust each different step according to the product information, and record the detected information in time inside the control system, and display it on the display screen, so that the detection result is more accurate and complete.

The invention discloses a raw material crushing device for food production and processing, and relates to the technical field of food processing.The raw material crushing device comprises a machine body and further comprises a crushing control device and a lifting device.A crushing frame is fixedly installed on the surface of the machine body in a penetrating mode, a feeding opening is fixedly formed in the surface of the crushing frame, and a material receiving frame is fixedly installed at the bottom of the inner wall of the machine body; a crushing motor is fixedly mounted at the top of the crushing frame, the crushing control device comprises a placing frame, a placing plate, a placing rod, a control plate, a control rod, a linkage plate and a sealing plate, the sealing plate moves downwards to shield a feeding port to achieve the effect of controlling feeding, the placing frame penetrates through the top of the crushing frame, and the placing plate is rotatably mounted on the inner wall of the placing frame. The placing rods are fixedly installed on the surface of the placing plate, the speed and quantity of pepper feeding can be accurately controlled by adjusting the opening degree of the shield, and stable operation conditions can be maintained in the production process.

The present invention relates to the technical field of smart street lamps, and discloses a self-cleaning smart street lamp, comprising a lamp pole, and further comprising: an illumination structure, the illumination structure being arranged at the top of the lamp pole, the illumination structure comprising a lampshade; a rotating structure, the lampshade being connected to the top of the lamp pole through the rotating structure; a side panel, the side panel being fixed to the top of the lamp pole; a driving structure, the driving structure being arranged on the side panel; a cleaning structure, the cleaning structure being arranged on the lamp pole; a self-rotating structure, the self-rotating structure being arranged on the lampshade; and a spraying structure, the spraying structure being arranged on the lampshade. The present invention drives the lampshade to rotate periodically through a motor and a gear system, so that the light-transmitting cover on the lampshade is in relative contact with the cleaning cotton, thereby automatically cleaning the dirt and dust on the surface of the lampshade. This design effectively reduces the need for manual cleaning of the lampshade, saving manpower and time costs.

The utility model relates to the technical field of universal crushers, in particular to an anti-residue universal material crusher. The device comprises a crushing operation shell, a discharging shell is arranged at the bottom of the crushing operation shell, a supporting table is arranged on the outer wall of the crushing operation shell, a cylindrical screen is movably arranged in the crushing operation shell, a crushing assembly is further arranged in the crushing operation shell, a screen rotating assembly is arranged below the cylindrical screen, and the screen rotating assembly is in transmission connection with the cylindrical screen. The screen rotating assembly is further in transmission connection with the smashing assembly, and a feeding assembly is arranged on the front face of the smashing operation shell. Through the matched design of the screen rotating assembly and the scrapers, the motor drives the cylindrical screen to rotate at a low speed through transmission of the chain wheel and the chain while driving the crushing operation, the scrapers tightly attached to the inner wall of the screen continuously scrape, powdery materials adsorbed or adhered to the surface of the screen due to static electricity can be removed in time, and the problem of screen blockage is effectively solved through the design; and the screen is always kept in a good transparent state.

The utility model belongs to the technical field of waste gas treatment, and particularly relates to treatment equipment for rectifying VOCs (volatile organic compounds) organic waste gas, which comprises an anti-blocking mechanism and is characterized in that the anti-blocking mechanism comprises a plurality of spraying and absorbing inner cavities, and a plurality of fixing plates in an annular array are fixedly connected to opposite surfaces of the spraying and absorbing inner cavities; the anti-blocking mechanism is matched with the transmission mechanism, so that the problem of impurity accumulation of the anti-blocking sieve plate can be solved, and pollutants are combined with waste gas absorption liquid in the process of spraying rectified VOCs organic waste gas by the spraying pipeline; according to the anti-blocking device, the anti-blocking plate is arranged, so that viscous impurities such as high-boiling-point organic matters and polymers and scaling substances such as salt crystals in waste gas enable insoluble substances to be easily adhered and easily and gradually accumulated on the surface of the anti-blocking plate, normal contact and mass transfer of gas and liquid on the anti-blocking plate can be hindered due to the impurities, and the absorption efficiency is reduced; and the cleaning brush bristles capable of circularly moving can regularly clean the surface of the anti-blocking plate, so that the problem that impurities are accumulated on the surface of the tower plate is effectively solved.

The present invention provides a laptop computer, comprising a screen assembly and a host assembly, wherein the screen assembly is rotatably connected to the host assembly via a screen shaft; further comprising a bottom support, wherein the bottom support is arranged at the bottom of the host assembly; the bottom support is provided with a connecting mechanism at one end close to the screen shaft, wherein one end of the connecting mechanism is connected to the bottom support, and the other end of the connecting mechanism is connected to the screen assembly; under the action of an external force, when the screen assembly switches from a closed state to an open state, the screen assembly drives the connecting mechanism to move, so that the bottom support moves from close to the bottom of the host assembly to a direction away from the bottom of the host assembly. The laptop computer overcomes the defects in the prior art that a laptop base needs to be carried to increase ventilation of the laptop computer, and the laptop base needs to be adjusted and set separately.

The invention relates to a urea reaction heat energy recovery system, and belongs to the technical field of heat energy recovery systems. The energy-saving environment-friendly boiler comprises a boiler body, an air outlet pipeline is connected to the boiler body, a heat recovery box is connected to the tail end of the air outlet pipeline, an exhaust pipeline is connected to the heat recovery box, a heat exchange assembly is arranged in the heat recovery box, and the heat exchange assembly comprises a plurality of heat exchange pipelines which are arranged left and right at intervals; the heat exchange pipeline comprises a plurality of horizontal pipe sections which are arranged at intervals in the vertical direction and extend in the front-back direction, a vertical pipe section used for communicating the two horizontal pipe sections is connected between the ends of any two horizontal pipe sections which are adjacent in the vertical direction, and a first scraping plate is inserted into each horizontal pipe section in a matched mode. The left side pipe wall and the right side pipe wall of each vertical pipe section are both in an arc shape and are kept coaxial, a second scraping plate is arranged in each vertical pipe section, and the second scraping plates are rotationally installed in the vertical pipe sections around the axes of the arc-shaped side walls. Scale on the inner side wall of the spiral heat exchange pipeline can be effectively removed, and the influence on the heat exchange efficiency is avoided.