124results about How to "Avoid problems" patented technology

The application discloses a software development package compiling method and device, and relates to the technical field of computers. A specific implementation of the method comprises the following steps: performing encapsulation based on a second programming language on a first type of module of any core component in a software development package, extracting a header file of the first type of module and a header file of a second type of module after the encapsulation to generate a common umbrella header file of the core component; and after compiling core component source code and upper layer component source code in the software development package into an executable file, processing the common umbrella header file of any core component in the software development package, so that the common umbrella header file only contains declaration content configured in advance for the core component. The implementation can effectively reduce the risk of core code leakage.

The utility model discloses a kind of waste gas adsorption-desorption equipment for waste gas treatment, it is related to waste gas treatment technical field.The utility model includes jar body and uniform adsorption component, the top and bottom between the inside cavity both sides of jar body are fixedly connected with grating net plate, the bottom between the inside cavity both sides of jar body is fixedly connected with preliminary adsorption filler layer, the surface of jar body is provided with vibration spreading mechanism.The utility model passes through uniform adsorption component, utilizes driving motor to control rotating disc to drive adjusting rod rotation, adjusting rod drives control frame to control lift rod to move up and down, so that it controls servo motor and rotating shaft adjusting stirring uniform paddle working height, utilizes stirring uniform paddle to carry out three-dimensional stirring to activated carbon particle, promotes the sufficient mixing exchange of center area and edge area activated carbon particle, makes saturated activated carbon transfer to low load area, improves overall adsorbent utilization, avoid premature saturation problem caused by waste gas preferential penetration in local area.

The utility model relates to contact lens automation production technical field, concretely is a kind of contact lens automatic filling and moulding equipment, including the transfer feed unit of driving multiple moulding carriers movement, and the loading visual inspection mechanism of setting in transfer feed unit side portion along the movement route of moulding carrier, mould dust removal work station, corona work station, liquid injection work station, moulding work station, mould pressing work station and receiving material work station;The present contact lens automatic filling and moulding equipment, fully-automated process, reduce manual interference, avoid the problem that surface treatment is not in place in traditional technology, moulding precision is poor, material loss is high;Production efficiency is improved, moulding precision is improved, turnover time is shortened, overall reduce production stage operating cost, improve the filling and moulding operation efficiency of contact lens, improve product yield.

The application provides a precision connector injection molding mechanism, which comprises a fixed mold core, a movable mold core and a nut positioning assembly. The fixed mold core is arranged on a fixed mold, and the fixed mold core is provided with a first upper forming groove. The movable mold core is arranged on a movable mold, and the movable mold core is provided with a first lower forming groove. The nut positioning assembly is installed on the movable mold, and the positioning end of the nut positioning assembly penetrates through the movable mold core to the first lower forming groove. The positioning end of the nut positioning assembly is used for positioning a nut. When the fixed mold and the movable mold are combined, the first upper forming groove, the first lower forming groove and the positioning end of the nut positioning assembly jointly form a forming cavity, and the forming cavity is used for forming a precision connector, so that the precision connector after injection molding is wrapped on the outer peripheral wall of the nut. The precision connector injection molding mechanism can better ensure the position accuracy of the nut installation and improve the production efficiency of the precision connector, and is beneficial to the large-scale production of the precision connector.

This invention discloses an intelligent voiceprint anti-counterfeiting method, device, and equipment based on hops signals. It collects the voiceprint signals generated by hops hitting the bottle wall, then denoises the signals and extracts PLP features. These feature signals are then input into a CNN-GMM-HMM voiceprint model for training to construct an original standard database. After collecting sample voiceprint signals, they are preprocessed and then matched and identified with the voiceprint information in the standard database to achieve authenticity verification. Compared to traditional identification methods, this method can identify genuine and counterfeit liquor faster and more accurately, greatly improving work efficiency while helping to ensure the quality and safety of liquor.

This utility model relates to the field of coating preparation technology, specifically to a composite marking coating preparation device, including a housing and a cleaning connection unit. The cleaning connection unit includes an inner shell, a moving ring, a water distribution pipe, multiple nozzles, a high-pressure pump, a connecting hose, a cylinder, a stirring assembly, and an auxiliary assembly. The auxiliary assembly is connected to the housing and the inner shell respectively. In use, the high-pressure pump pressurizes the cleaning fluid and delivers it to the water distribution pipe through the connecting hose. The water distribution pipe then distributes the high-pressure fluid to multiple nozzles for spraying. At the same time, the cylinder drives the moving ring to slide up and down along the inner side wall of the inner shell, causing the water distribution pipe and the nozzles to move synchronously, achieving three-dimensional scouring of different height areas inside the housing. The stirring assembly is used to stir and mix the raw materials, and the auxiliary assembly raises the temperature of the inner wall of the chamber to assist in the mixing of the raw materials. In this way, the side wall of the inner shell is cleaned to avoid the presence of raw material residue on the inner wall, ensuring the quality and efficiency of subsequent marking material preparation.

The present application relates to a kind of intracavity hot perfusion circulation pipeline, including heating tank, liquid inlet pipeline, liquid outlet pipeline, circulating pump, pre-charging pipeline, liquid return pipeline, intracavity pipeline and out of cavity pipeline, and the liquid storage cavity is formed in heating tank, liquid inlet pipeline is connected with the liquid storage cavity, liquid medicine is entered into the liquid storage cavity of heating tank via liquid inlet pipeline, when the liquid medicine amount in heating tank reaches the set value, liquid inlet pipeline is closed, the liquid medicine in heating tank is preheated by electromagnetic induction heating device until reach preheating temperature, liquid medicine is extracted from the liquid storage cavity under the action of circulating pump, after liquid outlet pipeline, pre-charging pipeline and liquid return pipeline, it flows back into heating tank, so air in pipeline system can be pre-removed to avoid causing inflammation.Then liquid medicine is extracted from the liquid storage cavity again under the action of circulating pump, after liquid outlet pipeline, intracavity pipeline, it enters bladder, then flows out from bladder, after out of cavity pipeline, liquid return pipeline, it flows back into heating tank.

This invention relates to the technical field of atmospheric control and air treatment, and discloses a waste gas treatment device based on the synergistic effect of low-temperature plasma and catalyst. The device includes a waste gas treatment unit, which sequentially passes waste gas through a plasma ionization zone and a catalytic zone. The plasma ionization zone ionizes the waste gas, while the catalytic zone further oxidizes or decomposes any incompletely degraded intermediate products after passing through the plasma zone. An outlet end is provided on the waste gas treatment unit, and an outlet unit is located at the outlet end. A film-breaking unit, during the waste gas treatment process, drives a permanent magnet ball to rotate, causing the permanent magnet ball to intermittently approach or move away from a spring, thus causing the spring to vibrate and preventing the formation of a gas film on the inner wall of the inlet end, thereby avoiding changes in the inlet end pipe diameter.

The utility model is suitable for the technical field of ore grinding equipment, and provides a phosphate ore raw material grinding device which comprises an equipment body, the equipment body comprises a workbench, a material containing disc and a dustproof cover, and the dustproof cover is arranged on the upper end face of the material containing disc; the material containing disc is provided with a material containing cavity, a mounting cavity, a first discharging hole and a moving groove. The discharging structure comprises a rotating ring, a connecting plate, a worm and a worm gear, the rotating ring is provided with a connecting column, and the rotating ring is provided with a second discharging hole; according to the feeding device, a worker rotates the worm, the worm gear and the connecting plate rotate synchronously, and a gap is formed between the second discharging hole and the first discharging hole; the material containing disc rotates, and under the action of centrifugal force, the phosphate ore with the granularity meeting the gap size is thrown into the discharging cavity; and the steps are repeated until all the ground phosphate ores meeting the granularity are thrown into the discharging cavity through the gaps, so that the existence of a part of too large or too small particles is avoided, and stable and accurate granularity control is realized.

A sagger-leveling demagnetization device, belonging to the field of lithium iron phosphate new energy material processing and magnetic material selection technology, includes a frame. One end of the frame has a pushing mechanism, and a vibrating part is movably mounted on the frame. The other end of the frame has a vibration mechanism. The pushing mechanism is connected to the vibrating part to move it to the vibration mechanism, which in turn drives the vibrating part to move up and down and vibrate horizontally. This invention features a sealing cover on the sagger to prevent dust generation during leveling. During leveling, the side top bars, first end posts, and second end posts constrain the outer periphery of the sagger, while rollers and the sealing cover constrain the vertical direction of the sagger. This design prevents the sagger from moving relative to the vibrating part during leveling, thus avoiding damage.

The utility model discloses a kind of automatic adding devices of passivation solution, it includes bottom plate, the upper surface of the bottom plate is fixedly connected with multiple support rods, the upper surface of the support rod is fixedly connected with bearing block, the inner surface of the bearing block is fixedly connected with liquid storage tank, the outer surface of the liquid storage tank is fixedly connected with multiple limit blocks, the upper surface of the limit block is fixedly connected with threaded rod, the outer surface of the threaded rod is movably connected with butt block, the side surface of the butt block is fixedly connected with connecting ring, the lower surface of the connecting ring is fixedly connected with filter screen, the outer surface of the threaded rod is movably connected with connecting block. Through the setting of filter screen, the passivation solution into metering pump can be filtered, so that impurities can be prevented from entering the metering pump with passivation solution, the components in the metering pump can be prevented from being damaged by impurities, and the service life of the metering pump can be prevented from being reduced by impurities.

The application belongs to the technical field of medical devices, and discloses a tick removing and storage device, which comprises a box body and a hand-held handle. The box body is divided into a first storage compartment and at least two second storage compartments by a partition plate. The top of the second storage compartment is provided with a first opening. A one-way channel assembly is arranged at the first opening to completely seal the first opening. A key plate is hingedly connected to the first opening by a torsional spring. One end of the hand-held handle is provided with a removable remover, and the other end is provided with an opening assembly. The remover comprises a pair of tweezers or a spade. The one-way channel assembly comprises a plurality of circumferentially distributed blocking pieces. The blocking pieces are in the shape of a sector. Two adjacent blocking pieces are partially stacked in sequence to form a continuous cover. The blocking pieces are made of a high-elasticity material. The application is suitable for ticks of different sizes and can ensure that the ticks enter the storage compartment without contact. Through the ingenious design of the dark plate and the light-reflecting plate, the ticks in the retention area can be guided to enter the active area, which is convenient for subsequent centralized processing.

The anti-scratch wear-resistant skiing glove comprises a glove body, a mounting band, an elastic band and a buckle, the glove body sequentially comprises a protective layer, a warm-keeping layer and a skin-friendly layer from outside to inside, the mounting band surrounds the wrist of the skin-friendly layer and is connected with the skin-friendly layer in a sewing mode, an opening is formed in the face, away from the skin-friendly layer, of the mounting band, and the elastic band is connected with the opening in a sewing mode. One end of the elastic band is inserted into the mounting band from the opening, the elastic band penetrates through the mounting band by a circle and then penetrates out of the opening, an access hole is formed in the hand inlet of the skin-friendly layer, the two ends of the elastic band penetrate out of the access hole, and the part, penetrating through the access hole, of the elastic band is fixed through a buckle. The length of the elastic band pulled out of the access hole is adjusted through the buckle. The elastic band is arranged on the skin-friendly layer, and then the elastic band and the buckle which are located on the outer side of the skin-friendly layer are arranged at the hand inlet of the skin-friendly layer to be hidden, so that the elastic band and the buckle can be prevented from appearing outside the glove body.

This invention belongs to the technical field of cable trench detection devices and discloses a detection device for cable trenches, including a mounting box. A support frame is fixedly mounted on the top surface of the mounting box, and a ventilation component is fixedly mounted on the top of the support frame. An oxygen sensor is movably connected to the left end of the ventilation component, and an air supply component is fixedly mounted inside the ventilation component. This invention utilizes the centrifugal force generated by the rotating connecting shaft when the device moves. This centrifugal force connects the power-off component to the power-on component, and then to the internal circuit of the drive motor. A transmission belt drives two transmission wheels, which in turn rotate the air supply component at the top of the ventilation component, drawing outside air into the ventilation component. This, in turn, causes airflow within the cable trench, forming an airflow that enters the ventilation component and contacts the oxygen sensor. The oxygen sensor detects the flowing air, increasing the device's oxygen content detection range. The device is simple to operate and reduces the workload of operators.

The utility model provides a limiting tool for pipeline corrosion detection, which belongs to the technical field of pipeline corrosion detection and comprises a sliding mechanism, two limiting mechanisms are slidably connected onto the sliding mechanism and limit a pipeline body, and each limiting mechanism comprises a first clamping component and a second clamping component. The first clamping assembly comprises two first clamping blocks capable of moving up and down, the first clamping blocks can be in contact with the inner wall of the pipeline body, the second clamping assembly comprises two second clamping blocks capable of moving up and down, and the second clamping blocks can be in contact with the outer wall of the pipeline body. The clamping position of the pipe wall can be automatically switched, the situations that when a detection instrument is tightly attached to the surface of a pipeline for detection, detection blind areas occur, normal detection cannot be achieved, and the pipeline needs to be rotated to switch contact points are avoided, manual operation is not needed, and the detection work efficiency is greatly improved.

The utility model belongs to pet transportation technology field, including: box unit, the box unit includes lower cover, upper cover and box door, the lower cover with upper cover connects, the upper cover with box door connects, the upper cover is provided with air inlet and air outlet, the upper cover includes inner shell and outer shell, and the inner shell and outer shell form air inlet air duct and air outlet air duct, fresh air unit, fresh air unit sets up in the upper cover, fresh air unit includes exhaust fan and air intake fan, exhaust fan installs in air outlet air duct, and the exhaust direction of air outlet air duct is provided with active carbon layer and HEPA layer in proper order, air intake fan installs in air inlet air duct, and the air inlet direction of air inlet air duct is provided with HEPA layer and active carbon layer in proper order, power supply unit, power supply unit with fresh air unit electricity is connected, and the utility model is provided with active carbon layer and HEPA layer, avoids the existence of peculiar smell and fluff etc. in the air that is discharged through fresh air, reduces the adverse effect to surrounding crowd etc.

The utility model discloses a cooling air knife and an air knife assembly adopting the cooling air knife. The cooling air knife comprises a box body, a cooling air duct is arranged in the box body, the cooling air duct comprises a cold air cavity, a plurality of air inlet holes are formed in the side wall of one side of the cold air cavity, an exhaust seam is formed in the side wall of the other side of the cold air cavity, and the box body is provided with a cooling water duct close to the exhaust seam. The pre-cooling device solves the problem of poor pre-cooling effect in the prior art.

The bentonite raw material drying equipment with the dust removal function comprises a first supporting seat, a second supporting seat and a drying machine, a material tank is rotationally connected between the first supporting seat and the second supporting seat, one end of the back face of the first supporting seat is fixedly connected with a first motor, and the inner side of the first supporting seat is rotationally connected with a lead screw; a first movable supporting base is slidably connected into the first supporting seat, a supporting frame is fixedly connected to the top of the first movable supporting base, a stirring mechanism is arranged on the front face of the supporting frame, and a second movable supporting base is slidably connected into the drying machine. The dust collection device is driven by the air cylinder to linearly move in the material tank, the third motor drives the steering ring to rotate, the steering ring further drives the dust collectors, the arc-shaped scraping blocks and other components to rotate together, the dust collectors can comprehensively collect dust on the inner wall of the material tank in the rotating mode, all parts of the material tank are effectively covered, and the dust collection efficiency is improved. Dust dead angles are avoided, and the comprehensiveness and thoroughness of dust collection are greatly improved.

The invention provides a method for separating germanium from a sulfuric acid solution by preparing a composite germanium adsorbent through in-situ polymerization, and relates to the technical field of germanium adsorption separation. The method comprises the following steps: firstly, preparing a carbon-based carrier to obtain a carbon carrier; oxidizing the carbon carrier to obtain a surface oxidized carbon carrier; the preparation method comprises the following steps of: firstly, performing in-situ polymerization grafting of tannic acid to obtain a high-acid stable adsorbent, and finally, putting the adsorbent into a germanium-containing sulfuric acid medium solution to adsorb germanium. According to the method, the problems of high tannin consumption, deterioration of solution quality and difficulty in reutilization of tannin in a traditional tannin germanium precipitation process are solved, and the prepared carbon / tannin complex adsorbent is stable in a high-acid system and can realize adsorption separation of germanium in a sulfuric acid solution.

The invention discloses an intelligent milling device for automobile precision parts, and relates to the field of milling equipment, the intelligent milling device comprises a device shell and a triangular claw disc mounted on the inner side of the device shell, a driving seat is arranged above the triangular claw disc, the driving seat is mounted on the inner side of the device shell, and a driving shaft is fixedly mounted at the output end of the driving seat; a fixed inserting cylinder is fixedly mounted at the bottom end of the driving shaft; a milling cutter is mounted on the inner side of the fixed inserting cylinder; the outer supporting mechanism is used for providing auxiliary supporting for the milling cutter, the outer supporting mechanism is installed on the outer side of the milling cutter, and the outer supporting mechanism comprises three pressing rollers which are arranged on the outer side of the milling cutter in a central symmetry mode; by means of the outer supporting mechanism, the three pressing rollers can abut against the outer side of the milling cutter in a centrosymmetric mode, the pressing rollers and the milling cutter can rotate in the same direction and at the same speed, the pressing rollers can support the outer side of the milling cutter, meanwhile, the friction situation is avoided, the safe supporting effect is achieved, and the durability of the milling cutter and the pressing rollers is guaranteed.

The invention discloses an aerial passenger cableway digital communication system and a control method thereof. The system comprises a ground upper computer monitor, an underground PLC control master station and a plurality of signal boxes which are in communication connection through a ring network switch. The control method comprises the following steps that S1, a ground upper computer monitors and receives transmission signals of an underground PLC control master station and a signal box; s2, judging whether an intra-group calling condition exists or not, and if so, processing and updating the state; if not, carrying out the next step; s3, judging whether a global broadcast condition exists or not, and if yes, processing and updating the state; if not, carrying out the next step; s4, judging whether a music playing condition exists or not, and if so, processing and updating the state; if not, carrying out the next step; s5, whether a fault alarm condition exists or not is judged, if yes, processing is carried out, and state updating is carried out; and if not, entering an idle state.

The invention discloses a power interface converter stability control method for a power-steam cogeneration system, and the method comprises the following steps: collecting a hydrogen energy storage state, a cogeneration unit operation state and an electric quantity, and constructing a comprehensive feasible region containing thermoelectric coupling constraint and ramp rate limitation; mapping an original power instruction into the feasible region and performing slope shaping to obtain a target power reference value; calculating an available energy margin and a fast power margin based on a physical boundary, and dynamically and cooperatively scheduling inertia and damping parameters of the virtual synchronous machine according to the available energy margin and the fast power margin; realizing grid-connected and off-grid seamless switching in combination with current margin gating logic; according to the invention, the system stability and the electric energy quality under complex working conditions are effectively improved.

The utility model provides a kind of flushing device for labor protection gloves production, it is related to glove cleaning processing field, including main part, the bottom fixedly connected with water reservoir of main part, the bottom fixedly connected with first mounting bracket of one side of main part, the top fixedly connected with second mounting bracket of first mounting bracket, the middle fixedly connected with compound motor of one side of first mounting bracket.In the utility model, through the setting of hollow washing material table and high-pressure water spray, the gloves are washed more thoroughly on both sides, and the gaps of gloves can also be washed, avoiding dead angles during washing, and improving the degree of cleaning automation to reduce labor costs.The setting of clamping magnetic block and water reservoir allows the gloves to be shaken multiple times during the cleaning process, which removes the residual water from the gloves, thereby speeding up the air-drying efficiency of the gloves and improving the overall processing efficiency.

The utility model discloses an automatic impurity removal refined quartz sand grading device, and relates to the technical field of quartz sand grading equipment, the automatic impurity removal refined quartz sand grading device comprises a base, the upper side surface of the base is fixedly connected with two mounting plates, and a screening cylinder is rotatably connected between the two mounting plates; two arc-shaped baffles are fixedly connected between the two mounting plates, conical collecting hoppers are fixedly connected to the lower side surfaces of the two arc-shaped baffles, a feeding opening is formed in the surface of the screening barrel, first screening holes and second screening holes are formed in the screening barrel, the diameter of the second screening holes is larger than that of the first screening holes, and the diameter of the second screening holes is larger than that of the first screening holes. The second screening holes are distributed in the two sides of the screening cylinder, by means of the circular design of the screening cylinder, small-particle quartz sand can be thoroughly screened out firstly when the quartz sand is screened, and the problem that small particles cannot be completely screened due to the fact that the quartz sand is too much or the stroke is short is avoided.

The invention belongs to the technical field of gas detection, and particularly relates to a gas concentration measurement method and system based on adaptive wavelength. The measurement method comprises the following steps: obtaining a waveform curve of a to-be-measured gas absorption signal; if the current waveform curve is distorted, the to-be-detected gas is scanned again after the current scanning interval is widened until the newest waveform curve is not distorted, and the newest waveform curve is subjected to convolution processing to obtain a second reasonable curve; and if K3 continuous sampling points greater than a third set threshold exist in the absorption interval of the second reasonable curve, recording the current second reasonable curve as a third reasonable curve, and calculating the current concentration of the gas to be detected according to the third reasonable curve, on the contrary, the scanning interval corresponding to the current second reasonable curve is narrowed, and then the to-be-detected gas is scanned again. According to the invention, high-efficiency and accurate concentration measurement can be carried out on to-be-measured gases with different concentrations.

The invention relates to the technical field of avalanche simulation experiments, in particular to a multi-dimensional adjustable avalanche dynamic process simulation experiment system and device and an analysis method. According to the technical scheme, the device comprises an object source sliding groove section fixedly installed at the top of an aluminum profile frame, a speed increasing sliding groove section is fixedly installed at the end of the object source sliding groove section, an erosion sliding groove section and a circulation sliding groove section are further fixedly installed at the top of the aluminum profile frame, and the speed increasing sliding groove section, the erosion sliding groove section and the circulation sliding groove section are in butt joint. According to the device, focused high-strength impact power is formed by injecting air at the directional injector, acts on the accumulated snow body avalanche object source push plate, is endowed with preset initial kinetic energy, drives the accumulated snow body to quickly move downwards along the preset sliding chute, and finally realizes accurate simulation of an avalanche scene; snow flows along the acceleration sliding groove section, the erosion sliding groove section, the circulation sliding groove section and the stacking bin, the high-speed camera is used for shooting an avalanche path, initial kinetic energy is given to an avalanche object source, and an avalanche scene caused by an earthquake is simulated.

The utility model relates to a kind of canine alpha-fetoprotein immunochromatographic quantitative detection card, belong to immunochromatographic detection device technical field.For the problem that sample leakage, chromatography uneven or detection window position deviation may exist in prior art, leading to inaccurate quantification.The detection card includes openable card shell and encapsulated chromatographic assembly in it;Chromatographic assembly includes the sample pad, the pad, the nitrocellulose membrane with detection line and quality control line and the absorbent pad sequentially stacked on the bottom plate, and the upper cover is provided with through sample inlet and detection port;Sample inlet is conical notch direct access sample pad surface, and detection port corresponds detection line and quality control line;Upper shell is provided with the scanning detection window corresponding to the detection port;Absorbent pad end extends 3~12mm beyond nitrocellulose membrane and abuts the inner wall of lower shell.The detection card is mainly used for the rapid, accurate quantitative detection of alpha-fetoprotein content in canine serum or plasma.

The present application relates to the technical field of building structure assembly, and discloses a kind of energy-saving steel-wood composite structure assembly construction method, comprising the following steps: S1, respectively in wood component and steel connecting piece are provided with wood positioning hole and steel positioning hole, and at least one reference hole is determined on wood component and steel connecting piece by positioning hole, and through hole is provided on heat insulation pad;S2, heat insulation pad is arranged between the connecting end surface of wood component and steel connecting piece;And heat insulation sleeve is inserted into the hole channel formed by wood positioning hole of wood component and steel positioning hole of steel connecting piece, and heat insulation sleeve is used as the temporary limiting pin of steel connecting piece and heat insulation pad positioning;S3, heat insulation sleeve is inserted into the remaining hole channel, and glue positioning is positioned between heat insulation sleeve and wood positioning hole on wood component;S4, through bolt is installed in heat insulation sleeve. The combination positioning between steel-wood composite structure can be quickly completed, and the node thermal bridge in combination positioning can be avoided.

The utility model discloses a fruit and vegetable powder stirring device for mixing various fruits and vegetables, and relates to the technical field of fruit and vegetable powder mixing processing. The grinding device comprises a grinding tank, a cover plate is fixedly arranged at the top of the grinding tank, a grinding block is rotationally arranged in the grinding tank, a grinding groove is formed by the grinding block and the inner wall of the grinding tank, a first motor is fixedly installed at the top of the cover plate, and the output end of the first motor is coaxially and fixedly arranged on the grinding block in the grinding tank; the grinding block is driven to rotate through the first motor, and the fed fruit and vegetable powder is ground through the grinding groove formed by the grinding block and the inner wall of the grinding tank. And powder particles with the specification larger than the passing diameter of the bottom of the grinding groove are ground, powder raw materials finally falling to the lower portion are the same in specification, large-specification powder and blocky powder are effectively prevented from existing, the basis of consistent specification is provided for follow-up mixing, and the mixing effect is improved.

This invention provides a method and apparatus for extracting watermelon seeds, relating to the field of agricultural technology. The watermelon seed extraction apparatus includes a peeling box, a first conveyor belt assembly, a first centrifuge, a second conveyor belt assembly, a second centrifuge, a third conveyor belt assembly, and a fourth conveyor belt assembly. In this invention, the watermelon is enveloped by two sets of relatively rotating segments within the peeling box, causing the watermelon to rotate randomly. During this rotation, the watermelon continuously contacts the inner wall of the segments, allowing the peel to be quickly removed by the peeling blade. This avoids the problem of watermelon peel mixing in and being difficult to separate during the subsequent seed extraction process. The peeled pulp is then cut by a cutting blade during transport and further centrifuged and pressed by the first centrifuge, avoiding the presence of large pieces of pulp and greatly improving the separation efficiency of the second centrifuge. The pulp, juice, and seeds are thoroughly separated, resulting in excellent separation performance.