29results about How to "Guaranteed extraction efficiency" patented technology

According to the drilling integrated packing system and method with the dynamic sealing and flexible spraying functions, firstly, two blocking bags are subjected to grouting expansion through a grouting device, a sealed space is formed between the two blocking bags, and flexible hole sealing grout is injected into the sealed space to enable the flexible hole sealing grout to enter drilling cracks; a spraying device is used for spraying a flexible spraying material on the roadway surface outside the drilled hole, and primary sealing and spraying work is achieved; after completion, gas extraction is carried out on the drill hole, in the gas extraction process, the gas extraction drill hole sealing quality detection device collects gas in the drill hole in real time for data detection, analysis and processing are carried out in combination with a set threshold value, and therefore the drill hole sealing quality is judged, and if the hole sealing quality is reduced, the grouting device and the spraying device work, and the grouting device and the spraying device work. Re-sealing and spraying of the drilled hole are achieved; and in the subsequent gas extraction process, according to the drilling quality judged in real time, the dynamic hole sealing process of first sealing and then spraying can be continuously conducted, and therefore the gas extraction efficiency is guaranteed.

The invention relates to the technical field of compound extraction, in particular to a control method and system for ultrasonic-assisted extraction of high-purity flavonoid compounds. According to the method, preparation conditions are optimized according to material characteristics, then ultrasonic treatment is carried out by adopting a segmented control strategy, meanwhile, the extraction process is tracked in real time through chromatographic detection, process parameters are adjusted in time based on the change trend of an efficiency curve, blindness of a traditional fixed parameter control mode is avoided, and the efficiency is improved. Through intelligent dynamic adjustment, the energy utilization efficiency is remarkably improved, excessive degradation of effective components is effectively prevented, and the control accuracy of the extraction process is improved.

The utility model provides a self-propelled hollow grouting anchor rod with gas early warning and gas pumping and discharging functions, which comprises a double-layer hollow rod body, wavy threads are arranged on the rod body, a self-propelled drill bit is arranged at the tail end of the rod body, the drill bit is fixedly connected with the rod body, a first grouting through hole and a second grouting through hole are arranged on the drill bit, and the first grouting through hole is communicated with the second grouting through hole. A gas through hole is formed in the side, close to the drill bit, of the rod body and communicated with an outer ring pipeline of the double-layer hollow rod body, the end, away from the drill bit, of the rod body is sleeved with a closed rubber sleeve, the closed rubber sleeve is fixed to the rod body, a metal tray is arranged on the side, away from the rod body, of the closed rubber sleeve, and the rod body penetrates through the closed rubber sleeve and the metal tray. According to the utility model, on the basis of ensuring the basic anchor rod function in the gas-containing stratum of the tunnel, the functions of pressure relief and pumping drainage of the stratum gas and grouting of the stratum can be realized, the high-precision monitoring of the gas concentration and the gas pressure is realized, and the safety of the construction process that the tunnel passes through the gas-containing stratum is greatly enhanced.

The invention discloses an induction culture medium for preparing human umbilical cord mesenchymal stem cell exosomes and application of the induction culture medium, and relates to the technical field of exosome culture. The additive is prepared from the following components: 0.8 to 1.5 percent of ITS, 0.03 to 0.05 percent of a luteolin extract, 0.04 to 0.06 percent of a herba taraxaci extract, 0.02 to 0.04 percent of a radix ginseng extract, 0.03 to 0.05 percent of resveratrol, 0.01 to 0.03 percent of vitamin C, 0.03 to 0.05 percent of a pimpinella thellungiana extract, 0.01 to 0.03 percent of a rhizoma dioscoreae extract and 0.01 to 0.02 percent of sodium citrate; the induction culture medium provided by the invention not only can avoid introduction of exogenous substances and reduce the pollution risk, but also can promote proliferation of stem cells and effectively induce synthesis and exosome secretion of a large number of human umbilical cord mesenchymal stem cells.

The utility model discloses a multiphase extraction device for separating harmful substances in food detection, which comprises an operating table, a back plate is arranged on the rear side of the upper wall surface of the operating table, and a multiphase extraction structure is arranged at the upper end of the operating table; the multiphase extraction structure comprises a stand column, a soaking box, a filter screen, a switch valve, a funnel, a sliding rod, a sliding extraction assembly and a distillation assembly; the utility model relates to the technical field of food detection, adopts a multi-phase extraction structure, can realize the extraction operation of solid phase and liquid phase of food during use through the arrangement of the soaking box and the separating funnel, is higher in overall matching degree, can effectively reduce auxiliary instruments and ensure the food detection effect while ensuring the extraction efficiency, and is convenient to use. The separating funnel is mounted in a sliding manner, so that the angle and the position of the separating funnel can be converted, and the extracting efficiency of the extracting solution is ensured.

The invention relates to an L-alanine high-yield strain, an extraction method and extraction equipment, and relates to the technical field of L-alanine high-yield strains, the L-alanine high-yield strain comprises a standing extraction platform, an extraction support, an extraction guide rail and a strain extractor, the strain extractor comprises a plurality of adjacently distributed extraction filter plates, and a working inner cavity is formed in each extraction filter plate; a microwave generator is arranged in the working inner cavity of the extraction filter plate, and working outer cavities are formed in the two sides of the extraction filter plate and used for crystallizing the mixed initial strains; according to the method, the mixed solution is crystallized, so that the solution is changed from a liquid state to a solid state, at the moment, the solution can be screened, impurities and metabolites in a crystalline product are removed, and at the moment, the L-alanine high-producing strain is extracted, so that the influence of the impurities on the extraction of the L-alanine high-producing strain can be greatly avoided; the extraction efficiency of the L-alanine high-yield strain is ensured.

The invention discloses a method for determining the content of rubber in a rubber-containing plant based on gel permeation chromatography, and relates to the technical field of analytical chemistry, and the method specifically comprises the following steps: S1, sample pretreatment: drying a rubber-containing plant sample and grinding into powder; s2, rubber extraction: performing ultrasonic extraction on the powder by using a mobile phase of gel permeation chromatography as an extraction solvent, centrifuging, and collecting supernate to obtain an extracting solution; s3, GPC (Gel Permeation Chromatography) detection: filtering the extracting solution, and injecting the filtered extracting solution into a gel permeation chromatographic instrument with a single chromatographic column for detection. The complete plant rubber content determination method is constructed by combining a total rejection GPC principle with an efficient sample pretreatment process, the defects of tedious pretreatment, low detection efficiency or inaccurate detection in the prior art are overcome, the method has the advantages of rapidness, accuracy and the like, extraction and detection parameters can be flexibly adjusted according to different plant samples, and the method is suitable for large-scale popularization and application. The method is suitable for quality analysis and breeding research of various gelatin-containing plants, so that the compatibility is improved.

The utility model belongs to the technical field of medical instruments, and discloses a slide loading device which comprises a sample loading box and a baffle, the sample loading box is provided with a containing groove, and a plurality of slides can be stacked in the containing groove in the vertical direction; the baffle is arranged on the discharging side of the sample loading box in a sliding mode in the vertical direction, the baffle can shield the containing groove, and a second magnetic attraction piece is arranged on the baffle; wherein the baffle plate can be in a first state position relative to the sample loading box under the action of self gravity, and the baffle plate can prevent the slide from sliding out of the accommodating groove at the first state position; the repulsive force opposite to the self-gravity of the baffle can enable the baffle to be in a second state position relative to the sample loading box through the second magnetic attraction piece, and at the second state position, a discharging channel allowing the slides to slide out is formed between the baffle and the sample loading box. According to the slide loading device provided by the utility model, the slide is effectively prevented from sliding out of the accommodating groove in the carrying process of the loading box, and the taking-out efficiency of the slide is effectively ensured.

The invention discloses an energy tunnel enhanced heat exchange system and method based on artificial freezing, and relates to the field of energy tunnel enhanced heat exchange. An energy tunnel enhanced heat exchange method based on artificial freezing is characterized in that in the freezing stage, the critical carbon dioxide artificial stratum freezing technology is adopted for freezing an underground target freezing area; in the shield excavation stage, heat exchange energy pipe pieces are laid in an artificial freezing area, and heat exchange pipes are formed; in the system operation stage, the ground source heat pump is arranged on the energy tunnel loop, the energy tunnel loop obtains terrestrial heat through the heat exchange pipe, fluid in the heat exchange pipe is circulated through the ground source heat pump, and therefore continuous geothermal energy is provided for the using loop. An energy tunnel enhanced heat exchange system based on artificial freezing comprises an underground energy tunnel, a supercritical carbon dioxide refrigerator and a ground source heat pump, wherein the supercritical carbon dioxide refrigerator and the ground source heat pump are arranged on the ground. Cold energy of the stratum in the freezing period is effectively utilized, and the geothermal energy extraction efficiency of the energy tunnel is improved.

The utility model discloses a low temperature boiling pot for honeysuckle chlorogenic acid extraction, including the body of pot, the pot cover, heating device, stirring device, filter device and control device. The bottom of body of pot is equipped with the heating cavity of adaptive cone and the heating tube of helical distribution in the heating cavity, is equipped with the openable flap, the observation window and the exhaust hole on the pot cover, and the stirring device adopts the scraper type stirring structure, and the stirring structure is composed of the stirring main shaft, the supporting arm and the elastic scraper, is provided with multiple groups of radial extension supporting arms on the stirring main shaft, and the end of each supporting arm is equipped with the elastic scraper of the adhesion body of pot inner wall surface, the bottom of body of pot is equipped with the discharge gate and double -deck filter device, and control device can accurate control heating temperature, boiling time, stirring speed parameter etc. This boiling pot can even heating, promote the even heating of medicinal liquid, filter impurity and accurate temperature control, effectively avoid honeysuckle pasting and chlorogenic acid high temperature degradation, improve chlorogenic acid extraction efficiency and quality.

The utility model belongs to the automobile adhesive tape processing technical field, concretely speaking is a kind of clamping tool for automobile adhesive tape gluing, including bottom plate, a group of placement blocks are fixedly connected on the bottom plate, the cross section of placement block is U-shaped, and the two ends of placement block are high and low, two groups of first through slot of symmetrical distribution are set up on the bottom plate, a pair of symmetrical distribution L-shaped plate is fixedly connected on the bottom plate bottom end, and first air cylinder is fixedly connected on L-shaped plate end portion, the output of first air cylinder is equipped with fixed plate, the top end of fixed plate is equipped with push rod through shift rail mechanism, and push rod top end is equipped with clamping plate through first through slot, and clamping plate is hook-shaped, and clamping plate is close to the high end of placement block, adhesive tape is placed in the middle part of placement block, the utility model provides a kind of clamping tool for automobile adhesive tape gluing to solve the problem of the influence of the clamping plate straight up and straight down on adhesive tape taking and placing efficiency.

The application relates to the field of laminarin production, in particular to a device for extracting laminarin from seaweed, which comprises a crushing device, a filtrate tank and a three-stage extraction device arranged on the body of the extraction device, a feeding pipe is fixedly connected between the sidewall of the filtrate tank and the crushing device, a liquid outlet pipe is fixedly connected between the bottom of the filtrate tank and the three-stage extraction device, and a first insertion groove and a plurality of second insertion grooves are arranged in the sidewall of the filtrate tank. The device for extracting laminarin from seaweed is convenient for mounting and dismounting the multi-stage filter screen, thereby facilitating cleaning; when filtering, the seaweed on the first filter screen can be scraped flat, the efficiency and effect of filtering are guaranteed, meanwhile, the seaweed on the first filter screen can be rolled, and the first filter screen can reciprocate during rolling, so that the rolling efficiency is higher and the effect is better, the filtrate is more complete, waste is avoided, and the extraction efficiency and effect of laminarin are guaranteed.

The invention relates to the technical field of mineral extraction, particularly discloses a method for efficiently extracting barite single mineral in black mudstone rich in organic matters, and solves the technical problems that micron-sized barite in black mudstone cannot be efficiently extracted in the prior art, lattice destruction / isotope fractionation of barite is easily caused in the extraction process, the purity and the recovery rate are low and the like. The purity of the extracted barite single mineral is larger than or equal to 99%, the recovery rate of fine-fraction barite is larger than or equal to 90%, crystal lattices are complete and free of damage, isotope fractionation and component change are avoided, and the high-precision geochemical test requirement can be met; meanwhile, the method is suitable for various sedimentary rocks such as marine / continental black mudstone, shale and siliceous mudstone, and the applicability is wide.

The invention relates to the technical field of natural product extraction and separation, and discloses a spore oil preparation method with a high ganoderma triterpenoid extraction rate, the method comprises pretreatment, supercritical extraction, separation treatment and purification treatment, impurities and dust are removed through screening treatment to obtain pure spores, and the spores are dried to obtain the ganoderma triterpenoid spore oil with the high ganoderma triterpenoid extraction rate. Wall-breaking treatment is carried out by combining a low-temperature superfine grinding technology, so that the spore powder achieves high fineness and high wall-breaking rate, spore cell walls are destroyed, and the specific surface area is increased, thereby ensuring that ganoderma triterpenes are fully dissolved out in the subsequent supercritical extraction process, and improving the extraction rate; the extraction pressure and the extraction temperature are controlled, an entrainer ethanol is added, the dissolving property of supercritical carbon dioxide is improved, polar components such as ganoderma triterpenes are efficiently extracted, meanwhile, through preheating treatment, temperature impact is reduced, component degradation is avoided, and the stability and the extraction efficiency of the extraction process are guaranteed.

The invention relates to the technical field of information extraction, and discloses a collected passport information extraction device and a method thereof.The collected passport information extraction device comprises a base, scanning extraction equipment is fixedly connected to the inner wall of the base, a fixing frame is fixedly connected to the top of the base, and a first mounting plate is fixedly connected to the inner wall of the fixing frame; an electric telescopic rod is fixedly connected to the top of the first mounting plate, before use, the device is mounted at a required position, a passport is placed in the fixing frame, a worker connects the electric telescopic rod and a power source of scanning and extracting equipment, and at the moment, the electric telescopic rod drives an extrusion plate and a hydraulic box to move downwards through an L-shaped sliding rod; the bent position of the passport is forced to make contact with the bottom of the piston plate, the piston plate presses the bent position of the passport, the page of the passport is forced to extend towards the two ends and be tightly attached to the top of the glass sheet, the glass sheet and the scanning extraction equipment at the bottom are in a horizontal state, and the information extraction efficiency of the scanning extraction equipment is guaranteed.

The present application relates to a kind of fish oil extraction equipment and its extraction process, belong to fish oil extraction technical field, by adopting the synergies of helical guide rail and elastic limiting part, multiple stirring parts are sequentially separated from limiting under the control of driving part and swing in vertical direction, form continuous wave type stirring track, reciprocating activity part and helical guide rail being set in the center of stirring barrel, cooperate with the synergies of elastic limiting part and stirring part, realize the effective stirring of high viscosity fish oil, both realize the uniform mixing and cyclic flow of material, shear force is dispersed into multi-section progressive action, avoid the mechanical damage of traditional high-strength concentrated shearing to protein-phospholipid complex colloid structure, while the buffer characteristics of elastic limiting part further reduce impact stress, solve the problem that the high viscosity of fish oil and its sensitive colloid structure in prior art make traditional high shear stirring easily lead to active ingredient loss and system stability reduction.

The invention discloses a ginseng extracting solution, a ginseng emulsion with high thermal stability and a preparation method of the ginseng extracting solution and the ginseng emulsion. The invention provides a ginseng extraction method which comprises the following steps: adding ginseng into a Tween aqueous solution according to a material-liquid ratio of 1: (15-30), shearing at a high speed, and then carrying out ultrasonic extraction and centrifugation to prepare a ginseng extracting solution. According to the method, the extraction efficiency of the active ingredients is high, no organic reagent is used in the extraction process, and the method is safer while the extraction efficiency is guaranteed. Furthermore, the invention also develops an emulsification scheme taking the obtained ginseng extracting solution as a water phase, the prepared ginseng emulsion with high thermal stability is high in thermal stability and storage stability, does not have a demulsification phenomenon and a layering phenomenon after being stored for 28 days after being sterilized at high temperature, is small in component change, and is very high in bioavailability of active components in the emulsion. And the method has good application value.

The utility model discloses a novel sewage pump which comprises a water pumping module. The water pumping module comprises a box body, a pump body installed at the top of the box body, a U-shaped cavity formed in the box body, two filter screen frames inserted into the U-shaped cavity in an interference mode, two vertical plates connected between the box body and the pump body, a box-shaped frame connected between the box body and the vertical plates, and a filter screen plate attached to the inner wall of the box-shaped frame. The flow dividing pipe is connected between the pump body and the vertical plate, and the electromagnetic valve is installed on the flow dividing pipe. The two filter screen frames are both located in the U-shaped cavity, then the filter screen plate blocks the opening, then the electromagnetic valve blocks the flow dividing pipe, sewage can only enter the pump body, when the device is put into actual use, the box body sinks to the water bottom, then the pump body is started, then the sewage is sieved through the box-shaped frame and the filter screen frames, and then the sewage is discharged out of the box-shaped frame and the filter screen frame. Pure liquid flows to the bottom of the U-shaped cavity, so that the damage probability of the pump body is effectively reduced.

The present application relates to the technical field of plant extract and the technical field of food processing, and particularly relates to a method for extracting flavones from bamboo leaves of Neosinocalamus affinis and application thereof. The method comprises the following steps: mixing bamboo leaf powder of Neosinocalamus affinis with pure water, and sequentially performing pulsed electric field treatment, ultrasonic treatment and enzymatic hydrolysis treatment; performing enzyme inactivation treatment after the enzymatic hydrolysis treatment; performing solid-liquid separation, collecting supernatant, and obtaining flavone extract from bamboo leaves of Neosinocalamus affinis; the bamboo leaf powder is two-year-old bamboo leaf powder of Neosinocalamus affinis. The method uses bamboo leaves of Neosinocalamus affinis as raw material, uses pure water as single extraction medium, performs pre-treatment on cell membrane by pulsed electric field to cause electroporation, further collapses cell wall and changes the conformation of cellulase by ultrasonic cavitation effect, and finally uses cellulase to specifically hydrolyze cellulose skeleton, so that the three time sequences are progressive and synergistic, and the flavone yield in the pure water system reaches 2.32-2.63%, which is comparable to organic solvent hot extraction and has no solvent residue.

The present invention relates to a method for preparing a feed liquid and tobacco filler for heating cigarettes and a granular heated cigarette. The above-mentioned preparation method comprises: mixing tobacco fragments with water, heating and refluxing, collecting tobacco essential oil and water extraction residue; adding ethanol solution to the water extraction residue, heating and refluxing, collecting the extract and alcohol extraction residue; freezing the extract and centrifuging to obtain a first extract; cooling and drying the alcohol extraction residue, performing supercritical extraction of carbon dioxide, collecting a second extract and supercritical residue; mixing tobacco essential oil, the first extract and the second extract to prepare a feed liquid for heating cigarettes; adding the feed liquid to the second tobacco, preparing tobacco particles, and obtaining a first tobacco filler; soaking the loaded residue material in essence and drying it to obtain a second tobacco filler. The method can reduce production costs while improving smoke quality; and the entire process is environmentally friendly, and no wastewater and waste residue are generated.

The utility model relates to the technical field of capsorubin extraction, in particular to a crude capsorubin extraction device which comprises a box body, a filter plate is connected between the middle of the left box wall and the middle of the right box wall of the box body in a sliding mode, a compaction device is fixedly connected to the middle of the upper end of the box body, and a feeding pipe is fixedly connected to the upper portion of the right end of the box body. The lower part of the right end of the box body is fixedly connected with a discharging pipe, the lower part of the left end of the box body is fixedly connected with a driving motor, the output end of the driving motor penetrates through the box body and is fixedly connected with a rotating rod, the outer surface of the rotating rod is fixedly connected with a plurality of stirring blades, and the left part of the front end of the box body is provided with an observation window. According to the crude extraction device for the capsorubin, the compaction device, the driving motor, the rotating rod and the plurality of stirring blades are matched for use, so that the extraction efficiency of the capsorubin is ensured, the extraction time is greatly saved, the labor intensity of workers is reduced, and the crude extraction device is convenient to operate.

The utility model discloses a rat oral mucosa connective tissue extraction device which comprises an extraction tube and further comprises two cutting knives symmetrically arranged at one end of the extraction tube, and the two cutting knives are arranged in a conical shape and connected with the extraction tube through a connecting assembly. Scraping knives for scraping connective tissues are arranged in the two cutting knives, and a driving mechanism for driving the cutting knives is arranged on the extraction tube. Through combined use of the cutting knife and the scraping knife, under the driving action of the driving mechanism, cutting of oral mucosa of a rat and scraping of connective tissue are completed in a continuous operation mode, replacement and use of multiple tools in the extraction process are not needed, and therefore the extraction operation convenience is improved, and meanwhile the extraction efficiency is improved. The efficiency of extracting the connective tissues of the oral mucosa of the rat is ensured.

The invention provides a lane line detection method and device and related equipment, and the method comprises the steps: carrying out the feature extraction of an obtained road condition image, and obtaining a feature extraction result; based on a feature extraction result, using a semantic segmentation model to perform semantic segmentation on the road condition image to obtain a semantic segmentation result, using a key point feature extraction network model to extract lane line key points, and obtaining a lane line key point extraction result; based on the semantic segmentation result, lane line identification is carried out, and a fitting lane line is obtained; and based on the lane line key point extraction result, correcting the fitting lane line to obtain a detection result of the target lane line. And when the semantic segmentation result has an error or a large error, the lane line is corrected according to the key point extraction result. And since the neural network models for semantic segmentation and key extraction share one feature extraction layer, the lane line detection precision is improved while the lane line extraction efficiency is ensured.

The application relates to a technical field of extracting ampelopsis extract, in particular to an ultrasonic microwave synergic extraction equipment for extracting ampelopsis extract, which comprises an extraction cylinder, a liquid injection port, a material injection port, a material discharge port, an annular cylinder, a sleeve ring and a stirring plate. The ultrasonic microwave synergic extraction equipment for extracting ampelopsis extract drives the annular cylinder to make circumferential revolution along the cylinder body axis through a rotating shaft and a supporting arm, meanwhile, the first tooth ring on the outer wall of the annular cylinder and the second tooth ring on the inner wall of the cylinder body are meshed with each other, and the annular cylinder makes self-rotation movement around the sleeve ring axis in the revolution process, the movement mode of the revolution and the self-rotation is combined, the stirring plate on the outer wall of the sleeve ring makes full-range and multi-track stirring movement in the extraction cylinder, the stirring plate can cover the whole cross section of the extraction cylinder and mix the upper and lower materials, and the phenomenon that the ampelopsis powder and the extraction solvent are locally mixed unevenly and the concentration is layered can be effectively avoided.

The invention relates to the technical field of water environment treatment, in particular to a water environment treatment sludge extraction device which comprises a device body, a pipeline is fixedly mounted below the device body, a treatment bin is fixedly mounted at the end, away from the device body, of the pipeline, and a feeding pipe is fixedly mounted below the treatment bin; and two groups of rolling plates are symmetrically arranged in the treatment bin, the rolling plates are rotationally inserted into the treatment bin through rotating shafts, and swing mechanisms are arranged outside the rolling plates. According to the sludge pumping device for water environment treatment, the two sets of symmetrical rolling plates are arranged, the rolling plates can roll sludge when rotating, and the lump sludge can be conveniently rolled and separated, so that the sludge cannot block the interior of a pipeline when entering the pipeline, and the sludge pumping efficiency can be guaranteed; and the pipeline does not need to be manually treated, so that the workload of workers is reduced.

The invention discloses an efficient sealing and repairing concentration and flow extraction integrated gas treatment device, and relates to the technical field of coal mine gas treatment, the efficient sealing and repairing concentration and flow extraction integrated gas treatment device is provided with a sealing mechanism, the sealing performance between an extraction pipe and an extraction hole can be effectively improved through the sealing mechanism, and the extraction efficiency and reliability are guaranteed; the sealing structure can adapt to efficient sealing in occasions such as repair of soft rocks and damaged extraction holes, and the sealing capacity and the extraction capacity of the extraction pipe are improved. The extraction hole repairing mechanism is arranged, the extraction hole repairing mechanism can conduct stepped slotted hole repairing on the end portion of the extraction hole, so that the sealing mechanism can seal the extraction pipe to the outer end portion of the extraction hole, efficient sealing on occasions such as repairing of soft rock and damaged extraction holes can be achieved through mutual cooperation of the extraction hole repairing mechanism and the sealing mechanism, and the extraction hole repairing mechanism is convenient to use. And the subsequent gas extraction efficiency and reliability are ensured.

The utility model discloses a gas drainage device for coal mine gas control, which comprises an extraction pipe and a screening box, fixing plates are arranged at the upper end and the lower end in the screening box, elastic springs are arranged at the front portion and the rear portion of one end of each fixing plate, a vibration frame is arranged at one end of the upper elastic spring and one end of the lower elastic spring, and a sieve plate is detachably arranged in the vibration frame. A measuring rod is installed at the top end in the screening box on the side, away from the air extracting pump, of the screening plate, and an air velocity detector is installed at the upper end, located at the top end of the screening box, of the measuring rod. The air velocity detector is used for detecting the flow velocity of gas inside the screening box, when dust on the surface of the screening plate is too much, passing of the gas is hindered, the air velocity detector detects that the flow velocity of the gas is slowed down, the air velocity detector controls the shifting assembly to be started intelligently, the shifting assembly can drive the vibration frame to vibrate, and the vibration effect is improved. Intelligent cleaning of dust on the surface of the vibration frame is achieved, and the gas extraction efficiency is effectively guaranteed.

The utility model relates to the technical field of pesticide production, in particular to a pesticide extraction device. Comprising a device body and an extrusion cylinder, a first driving motor, a driving gear, a pressing roller, a transmission gear, a driven gear and a crushing roller are installed on the outer side of the device body, an arc-shaped scraper is installed at the position, close to the pressing roller, of the device body, the extrusion cylinder is installed below the device body, and a second driving motor and an extrusion screw rod are installed above the extrusion cylinder; a filter screen and a mesh plate are mounted at one end, close to the feed flaring, of the extrusion cylinder in a clamping manner; and a liquid collection bin and an extraction kettle are mounted below the filter screen. A crushing roller rotates to crush the rhizomes, branches and leaves, the crushed rhizomes, branches and leaves reach the position above a pressing roller, at the moment, the pressing roller preliminarily squeezes the crushed rhizomes, branches and leaves, a second driving motor drives an extrusion screw rod to rotate, and liquid and solid entering an extrusion barrel are subjected to secondary squeezing and solid-liquid separation; by means of the mode, the squeezing efficiency and effect can be effectively guaranteed, and then pesticide extraction is facilitated.

The utility model relates to a multi-stage extraction device for coffee ingredients, which comprises a Soxhlet extractor and further comprises a holding device, the holding device comprises a holding table and a clamping and fixing mechanism, a placing groove is formed in the holding table, and an extraction bottle of the Soxhlet extractor is clamped with the placing groove; the clamping and fixing mechanism is arranged on the holding table, and an extraction pipe of the Soxhlet extractor and the condenser are both connected with the clamping and fixing mechanism. The coffee extraction device has the effect of improving the coffee ingredient extraction effect.