15results about How to "Optimize the extraction process" patented technology

The invention discloses a multi-scale digital rock core rapid reconstruction method based on an agent model, and belongs to the field of digital rock core rapid reconstruction. According to the method, through combination of multiple steps and the model, all-around support is provided for construction of a multi-scale digital core, key links of data acquisition, feature extraction, model construction and multi-scale information fusion are covered, a basis is provided for reservoir physical property evaluation through accurate prediction of permeability, and the reservoir physical property evaluation accuracy is improved through combination of microscopic images and macroscopic attributes. Effective connection of cross-scale information is realized, finally, a digital core with a real microstructure is generated, and a high-fidelity data model is provided for oil-gas exploration.

The invention provides a detection method and application of amphoteric and cationic perfluorinated and polyfluoroalkyl compounds, the method optimizes an extraction agent, can more comprehensively detect, qualitatively and quantitatively analyze amphoteric and cationic PFAS in solid samples such as biological solids, soil and the like, has high accuracy and detection precision, and can be widely applied to detection of amphoteric and cationic perfluorinated and polyfluoroalkyl compounds. The amphoteric and cationic PFAS with more unknown structures can be identified and analyzed, the blank of the prior art in the aspect of extracting and detecting amphoteric and cationic perfluorinated and polyfluoroalkyl compounds is filled, the occurrence level and fate-to-transition behavior of the amphoteric and cationic PFAS in the environment can be accurately analyzed, traditional and novel amphoteric and cationic PFAS in the environment can be identified, and the detection accuracy of the amphoteric and cationic perfluorinated and polyfluoroalkyl compounds is improved. And a scientific basis is provided for new pollutant treatment in China.

This invention relates to the technical field of plastic recycling, and more particularly to a centralized processing device for polyethylene waste, comprising side plates, a first connecting plate, a first hydraulic telescopic cylinder, a second connecting plate, limiting rods, an extrusion assembly, and a drive assembly; several side plates are connected to a support block; a first connecting plate is disposed above the support block; a first hydraulic telescopic cylinder is fixedly connected to the first connecting plate; the telescopic end of the first hydraulic telescopic cylinder is fixedly connected to the second connecting plate; several limiting rods are fixedly connected to the second connecting plate; under the limiting action of the limiting rods, four through holes are formed inside the film block package. After inserting a PE tube into the through holes, the heat in the film block package can diffuse to the inside of the PE tube, and then diffuse from the inside of the PE tube to the external environment, avoiding heat accumulation and spontaneous combustion. At the same time, the limiting rods are also used to fix the middle of the film block package, preventing the film block package from shifting during the opening of the side plates, thereby avoiding affecting the gripping and positioning operation of the robotic arm.

The utility model relates to a mining double-bag hole packer convenient to install, and belongs to the technical field of underground blasting equipment. The double-bag hole packer comprises tamping bars, barbs, a grouting pipe, an inner bag, an outer bag and barbs, the tamping bars are hollow pipes, the tamping bars are sequentially connected through threads, a funnel-shaped fixing block is arranged at the top of the tamping bar at one end, the barbs are integrally in a conical umbrella rib shape, the bottoms of the barbs are inserted into the fixing block, the lower portions of the barbs are connected with the grouting pipe, and the inner bag is connected with the outer bag. An inner bag and an outer bag are arranged at the two ends of the grouting pipe respectively, and a plurality of grouting holes are formed in the grouting pipe. The device is simple in structure and convenient to operate, it is guaranteed that the bag hole packer does not move after being installed in place, hole sealing quality is guaranteed, and blasting safety is guaranteed.

The invention relates to a rosin-free depilatory hot wax and a preparation method thereof, and belongs to the technical field of depilatory hot wax. The depilatory hot wax comprises the following raw materials by weight: 30 to 70 parts of wax-based substances, 1 to 5 parts of carboxylated cellulose nanocrystals, 3 to 7 parts of coconut oil-based wax esters, 0.1 to 1 parts of depilatory proteases, 5 to 10 parts of modified polyols, 3 to 5 parts of polyurethane dispersions and 0.3 to 2 parts of colorants; wherein the coconut oil-based wax esters are synthesized from coconut oil, coconut alcohol and immobilized lipase; the modified polyols are synthesized from triglycerides after epoxidation reaction and then hydroxylation reaction. The depilatory hot wax of the invention does not add any additives containing any rosin or rosin derivatives with rosin as raw material, thus avoiding the occurrence of users being allergic to rosin and its derivatives, and has high depilatory efficiency, low drop melting point, can significantly reduce skin pain, and has good film-forming properties and is easy to tear.

The utility model discloses a fire-fighting steel chisel anchor point recovery device which comprises a straight hand lever, a rotatable U-shaped clamping piece is arranged at the front end of the straight hand lever, and the opening direction of the U-shaped clamping piece is perpendicular to the straight hand lever; a supporting rod is further included, a rotatable sleeve is arranged at the top end of the supporting rod, the straight hand rod is sleeved with the sleeve in a penetrating mode and fastened through a T-shaped screw, and a base is arranged at the bottom of the supporting rod. The base comprises a ball groove and a bottom plate which are fixed into a whole, and a ball head is arranged at the bottom end of the supporting rod and rotates in the ball groove. And the sleeve is provided with two T-shaped screw rods which are in threaded connection. And the rotating surfaces of the U-shaped clamping piece and the sleeve are overlapped. Compared with the prior art, the steel chisel pulling-out device has the advantages that the straight hand rod is connected with the supporting rod in a lever mode, the fulcrum can be adjusted, the base can adapt to uneven terrains, operation is labor-saving, a steel chisel can be pulled out quickly and easily, and the workload of firemen is reduced.

The utility model belongs to the technical field of tunnel primary support detection equipment, and particularly relates to a detection hole reserving device for tunnel primary support detection, which comprises a mounting seat, a steel arch frame, a straight pipe, geotechnical cloth and a fixing component, the mounting seat is detachably connected with the steel arch frame, and the two ends and the outer wall of the straight pipe are wrapped with multiple layers of geotechnical cloth. The straight pipe is arranged on one side of the steel arch frame, the two ends of the straight pipe extend out of the front surface and the rear surface of the steel arch frame correspondingly, and the straight pipe wrapped by the geotechnical cloth is fixed to the mounting base through the fixing assembly; the inner channel of the straight pipe or the cavity formed after the straight pipe is pulled out is the preformed hole for tunnel primary support cavity detection, the treatment procedure after concrete spraying is completed can be simplified, the straight pipe is wrapped with the geotechnical cloth, the structure is simple, installation is convenient, impurities such as silt and chippings in the concrete spraying process can be prevented from entering the inner channel of the straight pipe, and the construction efficiency is improved. Excellent water permeability is achieved, and drainage of the inner wall of the tunnel is facilitated.

The utility model relates to the technical field of water treatment, in particular to a physical field descaling device for a heat supply system, which comprises a first filter vat, a second filter vat and a filter box, and is characterized in that a water inlet pipe is arranged on the surface of the first filter vat, and the first filter vat is communicated with the second filter vat through a first pipeline; the second filtering barrel is communicated with the filtering box through a second pipeline, and a water outlet pipe is fixedly connected to the bottom of the side, away from the second filtering barrel, of the filtering box. The device has the advantages that the screw rod is rotated by using a wrench, so that the distance between the second clamping plate and the first clamping plate is greater than the width of the fixed frame, the purpose of saving time and labor can be achieved when the semi-permeable filter membrane is replaced, and the filter assembly can be replaced by opening the sealing cover and pulling out the first filter cylinder from the first filter barrel; and the exchange resin filter filling layer can be replaced by pulling out the second filter cylinder from the second filter barrel, so that the aim of conveniently replacing the water quality filter and the hydrogen ion exchange resin filter is fulfilled.

The application discloses a Chinese cabbage harvester, which comprises a machine body, a conveying mechanism and a cutting mechanism. The conveying mechanism comprises a conveying driving assembly, a supporting conveying belt, two conveying frames, two clamping conveying belts and two elastic supporting assemblies. The two clamping conveying belts are oppositely arranged and capable of clamping Chinese cabbage. The supporting conveying belt is capable of supporting the bottom of the Chinese cabbage after the roots of the Chinese cabbage are cut. The conveying driving assembly drives the supporting conveying belt and the two clamping conveying belts. The elastic supporting assemblies are capable of being elastically deformed in self-adaption relative to the conveying frames when the clamping conveying belts clamp the Chinese cabbage, so that the clamping conveying belts can be self-adaptively attached to the Chinese cabbage. The cutting mechanism comprises a cutting driving assembly, a clamping assembly and a cutting assembly. The cutting driving assembly drives the clamping assembly and the cutting assembly. The clamping assembly clamps the root of the Chinese cabbage and provides an upward force. The cutting assembly is capable of cutting the root of the Chinese cabbage. The Chinese cabbage harvester provided by the application is convenient for low-loss pulling and root cutting of Chinese cabbage.

The objective of this invention is to provide a steering wheel that allows the driver to easily remove their fingers from a hole provided in the connecting portion, even if the driver's fingers become stuck in the hole. A hub is fixed to the steering shaft. Furthermore, when viewed axially along the hub, a rim portion for the driver to grip is disposed on the outer periphery of the hub, and the hub and rim portion are connected by a connecting portion. Holes with openings on the front side of the steering wheel are provided in the left and right connecting portions. The left and right connecting portions have inclined surfaces on the inner peripheral surfaces forming the holes, and these inclined surfaces are inclined such that the holes enlarge as they face the front side.

The utility model discloses a two-wheeled vehicle transportation quick-assembly self-locking tensioning and fastening device, including footstep hanging seat, pull handle assembly, long quick-release safety pin and short quick-release safety pin, footstep hanging seat includes insertion part and connecting portion, and insertion part is equipped with first insertion hole, and connecting portion is equipped with second insertion hole, pull handle assembly includes pull assembly and handle assembly, and one end of pull assembly is hinged with handle assembly, and pull assembly is equipped with pull clamping, and handle assembly is hinged with connecting portion, and handle assembly is equipped with third insertion hole, long quick-release safety pin can be detachably inserted into first insertion hole, the position of pull assembly and handle assembly hinged and the position of handle assembly and connecting portion hinged are interval arrangement, handle assembly has opening state position and closed state position relative to connecting portion, and short quick-release safety pin can be detachably inserted into second insertion hole and third insertion hole in closed state position, is used for quick fixed connection two-wheeled vehicle and is quick to release the state of being taut when disassembling.

The invention discloses a digging ginger harvesting device with perfect functions, strong adaptability and high harvesting rate. The digging ginger harvesting device of the invention comprises a mobile platform (100) for driving the ginger harvesting device, a soil shaking and cutting module (200) for screening and cutting ginger pieces, a digging module (300) for digging ginger pieces, a grass-supporting module (400) for supporting the grass, and a collecting module (500) for collecting ginger pieces; the soil shaking and cutting module (200) is placed on the mobile platform (100), the digging module (300) is at the front end of the soil shaking and cutting module (200), the grass-supporting module (400) is placed on both sides of the digging module (300), and the collecting module (500) is placed at the lower part of the rear end of the soil shaking and cutting module (200).

The application discloses a kind of for mathematical formula identification and extraction method and system, method includes: obtaining input original text data;The original text data is preprocessed, and the text information after preprocessing is obtained;Formula identification extraction method is used to extract mathematical formula to the text information after preprocessing, and extraction result is obtained;Output extraction result.The method can accurately improve the accuracy and adaptability of mathematical formula extraction, and extraction efficiency is high, improve the efficiency of processing a large amount of text.

The present invention discloses a characteristic spectrum extraction method for target object classification and identification, including: obtaining multiple object spectra of the target object and constructing a spectrum matrix, obtaining the spectrum domain space of the target object spectrum according to the spectrum matrix, constructing multiple interpolation matrices corresponding to the multiple target object spectra with integer reflectance as row number and wavelength as column number, calculating the normalized interpolation factor of each matrix to be interpolated according to the reflectance corresponding to the wavelength and the distance in the spectrum domain space, interpolating each matrix to be interpolated by using the inverse distance interpolation method, obtaining multiple spectrum domain space matrices, accumulating multiple spectrum domain space matrices, obtaining the cumulative spectrum domain space matrix of the object, and calculating the characteristic spectrum of the target object. The characteristic spectrum constructed by this method can be used to improve the characteristic spectrum extraction process of the target object in the classification scene, improve the target recognition accuracy; optimize the construction of characteristic parameters in the inversion scene, and improve the characterization ability of the characteristic parameters.