39results about How to "Reduce the difficulty of filtering" patented technology

Preparation of L-pectin sugar is carried out by: processing corn bran with glycase, degrading the corn bran said above with thin acid of 1%-5%, regulating pH3.5-5.5 and collecting supernatant, desalting and removing impurities the supernatant with ion exchanging resin, inoculating yeast and fermenting, removing hetero-monosaccharides, crystallizing the fermented liquid to obtain final product. It is chemical process combined with biologic one, with simple procedure and high yield and good quality.

The invention relates to a data processing method for detecting a lane line, and a storage medium. The method comprises the steps of acquiring sampling pixel coordinates in at least one lane line from an image according to a first preset rule, wherein the first preset rule is used for acquiring pixel coordinates in the y direction of the image; after the multiple sampling pixel coordinates are converted into points in a coordinate system of the unmanned vehicle, obtaining multiple sampling point data; filtering the plurality of sampling point data according to a second preset rule to obtain a target sampling point set, the second preset rule being used for filtering non-target sampling points on a lane line under a coordinate system of the unmanned vehicle; and performing curve fitting processing on the target sampling point set, if the curvature radius corresponding to a curve obtained by fitting processing is greater than a preset threshold value, outputting the lane line, otherwise, giving up output. According to the data processing method for detecting the lane line and the storage medium provided by the invention, high-quality lane line data can be provided for an automatic driving system.

The invention discloses a production process of a polyisophthaloyl metaphenylene diamine polymer. The production process comprises a diamine dissolution step, a normal-temperature polymerization reaction step, a coarse control neutralization reaction step and a fine control neutralization reaction step. According to the production process, the neutralization reaction can be better controlled and especially the finishing of the neutralization reaction can be controlled in such a way that a polymer is neutralized by respectively adding different neutralizing agents in two steps, more than 80% of neutralization reaction is completed in the first coarse control neutralization reaction step and the rest of neutralization reaction is completed by using diethylamine, so that the polymer with excellent neutralization quality is obtained, and the subsequent filtering and processing difficulties of a colloid are reduced.

The invention discloses a continuous process device and a continuous process method for synthesizing hydrofluoroether. The method is characterized by comprising the following steps: continuously introducing raw material alcohol in which a certain amount of catalyst is fused into a reaction kettle to react with tetrafluoroethylene, continuously discharging after a certain retention time, and separating through a film evaporator to obtain the hydrofluoroether; enabling a product and the raw material to enter a rectification system after becoming a gas phase, then recycling the raw material alcohol to a raw material tank, converting the waste catalyst into solid-phase salt to enter a waste catalyst tank, and recycling the remaining liquid-phase solvent back to the reaction kettle through a circulating pump for recycling. According to the method, a traditional batch reaction is changed into a continuous process, full-automatic control over the production process is achieved, meanwhile, thereaction rate is increased, the reaction condition is milder, the energy consumption cost is reduced, and the product stability is guaranteed.

The invention discloses a point cloud correction method for a laser scanner, which is applied to the laser scanner and comprises the following steps: acquiring all scanning points in original laser scanning data of a three-dimensional laser scanner, and reading one scanning point as a scanning point to be processed; judging whether the to-be-processed scanning point is a first scanning point or not, and if yes, storing the to-be-processed scanning point in a temporary cache and then continuing to read the scanning point; if not, judging whether the to-be-processed scanning point and the previous to-be-processed scanning point belong to the same line segment or not; if yes, storing the to-be-processed scanning points in a temporary cache, and continuing to read the scanning points; if not, taking out all the scanning points in the temporary cache, and storing the scanning data of each scanning point locally after being filtered; meanwhile, creating a new temporary cache to store the to-be-processed scanning points in the new temporary cache, and then reading the scanning points until all the scanning points are read. The invention further provides a point cloud correction device of the laser scanner and a storage medium.

The invention discloses a separation technology capable of solving the mineral derichment problem in a grinding and classification system. The technology is characterized in that a mineral feeding box is connected with a mineral feeding pump, the mineral feeding pump is connected with a hydrocyclone, an underflow outlet of the hydrocyclone is connected with a mineral feeding opening of a separation device, the hydrocyclone flows over to enter the next technology, a product outlet of the separation device is connected with a concentrate groove, a tailing discharging part is connected with concentration equipment which is connected with a grinding machine, and the grinding machine is connected with the mineral feeding box; and the technology comprises the steps that pulp is fed into the mineral feeding box, and then is conveyed into the next-stage technology through the overflowing product of the hydrocyclone, the underflow product of the hydrocyclone is fed into the separation device, qualified products of the separation device are concentrates, tailing pulp of the separating device is fed into the concentration equipment, and the underflow pulp of the concentration equipment is fed into the grinding machine to be ground. According to the separation technology, various problems caused by derichment of target minerals in the grinding and classification system are thoroughly solved, and the aims of improving the recycling rate and grade of the target minerals, improving the grinding machine treatment amount and reducing energy consumption of the grinding machine are achieved.

The invention relates to a method for producing liquid fig by utilizing ficin and is characterized in that fresh fig raw material is cleaned, minced and ground into slurry, water with the volume 3-5 times of the slurry is added to the slurry, and ficin is added to the slurry, the slurry is heated to the temperature of 45-52 DEG C in an ultrasonic reactor and is stirred under constant temperature for 1-3 hours, then the slurry is heated and deactivated enzyme, and the liquid fig is prepared by the techniques of homogenization, filling, capping and packaging. The liquid ficin provided by the method not only has remarkable medical health care effect, but also has good taste, is easy to be absorbed by a human body, retains the original nutrients and bioactivity of the fig completely, and needs no chemical additives, so that a new processing technology of fig and a new product are provided.

The invention discloses an esterification reaction tower for glyceryl triacetate production. The esterification reaction tower comprises a tower body, a reboiler, a gas distribution plate, a first condenser, a pervaporation membrane separator, a second condenser, a buffer tank, a reflux channel, a gear rack mechanism, a mesh cylinder and a gear motor. According to the invention, water generated bya reaction and a gas-phase azeotrope of a water-carrying agent are rapidly and efficiently dehydrated at the tower top, the removed water is intensively recycled in the buffer tank, and the recycledwater-carrying agent can be sent back to the tower as required and can also be discharged, so that the use is flexible; active carbon in a catalyst in a material can be directly intercepted in the mesh cylinder, so that the filtering difficulty of subsequent procedures is reduced; the mesh cylinder can reciprocate up and down in the tower and continuously rotate, so that the effect of stirring feed liquid is achieved, and the active carbon is dispersed so as to facilitate the reaction; and the feeding door of the mesh cylinder is matched with the reset spring, the upper pressing head and the lower pressing head, so that the functions of automatic feeding, cleaning and discharging can be achieved, and the esterification reaction tower has the advantages of being convenient to operate and maintain.

The invention relates to a multilevel wind power current transformation device without an AC / DC current sensor, and belongs to the technical field of power generation, power transformation or power distribution. The current transformation device is connected in series between a wind power generator set and a power grid. The current transformation device comprises a network side controller, an MPPT controller, a first current transformation unit, a second current transformation unit and a trap filter. The first current transformation unit, the second current transformation unit and the trap filter are connected in series in turn, and each unit in the current transformation device is controlled to realize feedforward control through each controller so as to realize grid connection power generation of the wind power generator set. According to the current transformation device, the harmonic component possibly brought into the power grid by the wind power generator set in grid connection can be reduced so that possible harm of the harmonic component to the power grid can be indirectly eliminated.

The invention relates to a filtering device, in particular to a coupling filtering device for waste lubricating oil. The device comprises a recycling box, a pretreatment box, a booster, a pressurizingrod, a pretreatment roller, a scraper, a sinking pipeline, a striking device, a treatment pipe, a motor base, a filter screen frame, a filter screen II and a device base; in operation process, wastelubricating oil is layered through precipitation, lubricating oil with different impurity contents is separately treated, and the filtering efficiency and the filtering quality are improved; relatively clean waste lubricating oil is pushed into the treatment pipe for further treatment by utilizing a push plate, so that the filtering difficulty of a filter screen I is reduced, and the service lifeof the filter screen I is prolonged while blockage is prevented; waste lubricating oil containing a large number of impurities and metal particles is stripped by combining a cylindrical electromagnetcapable of descending and rotating with the scraper, primary treated lubricating oil is obtained through treatment using the recycling box and the filter screen II and then is further treated, and itis beneficial for improvement of the filtering efficiency and the filtering quality.

The invention discloses an environment-friendly treatment method of a garbage penetrating fluid. The method comprises the following steps of: S1, reducing the water speed: after entering the UASB reactor, the garbage penetrating fluid impacts and drives a blocking mechanism, and the moving net of the blocking mechanism rises, so that the flow speed and the flow direction of ascending water flow are changed; the aeration mechanism is uniformly accelerated, so that the movement of a gas is accelerated, the moving difficulty of the gas is reduced, and meanwhile, the aeration pipe can be protected; moreover, the rotation of the aeration pipe can be facilitated, so that different positions in the denitrification reaction tank can be aerated; the phenomena of non-uniform aeration of a denitrification reaction tank and easy blockage of an aeration pipe in the prior art are solved, so that the garbage penetrating fluid in the denitrification reaction tank can be in full contact with the filler, the garbage penetrating fluid can be conveniently filtered, the aeration pipe can be protected, external dirt is prevented from entering the aeration pipe, and the cleaning frequency of the aerationpipe is reduced.

The invention discloses a production and preparation method for solid poly-aluminum chloride. The production and preparation method comprises the following steps of: (1), heating up 1.32-1.4 tons of hydrochloric acid with concentration of 20%-30% to 90 DEG C to 110 DEG C, adding 0.55-0.6 ton of bauxite for reacting for 1-2 hours under a constant temperature; (2), adding 0.3-0.4 ton of calcium aluminate powder for polymerizing to obtain a liquid poly-aluminum chloride solution; (3), adding fluorite which is 4-5 times silica gel by weight, and reacting for 15-30 minutes under the constant temperature; (4), filtering the reacted aluminum chloride solution by a filter press; and (5), drying the filtered aluminum chloride solution at a high temperature to obtain the solid poly-aluminum chloride. According to the preparation method disclosed by the invention, silicon fluoride with low viscosity is generated by the fluorite and the silica gel with high viscosity in the silica gel reaction solution in a polymerized aluminum chloride solution in a production process, so that the filtering difficulty is greatly reduced and the filter cloth can be recycled after being cleaned, thereby shortening the production time, reducing the production cost, improving the solid content of the liquid aluminum chloride and improving the market competitiveness of the products.

The invention relates to a complete set of new process for synthesizing D-calcium pantothenate. According to the invention, the method comprises the following steps: synthesizing beta-calcium aminopropionate from beta-aminopropionic acid and calcium oxide in water and / or methanol; after filtering, evaporating water and / or methanol in the beta-calcium aminopropionate solution to dryness under negative pressure; or after filtering, stirring and crystallizing for 8-40 hours at the temperature of 20-65 DEG C, filtering again, replacing mother liquor in a re-filtered filter cake with methanol for more than three times, enabling the moisture content in the filter cake to be less than 1%, removing 70% or more of solvent from filtrate, and applying the filtrate to a re-filtering step; soaking beta-calcium aminopropionate with methanol, adding a methanol solution of D-pantolactone, carrying out a reaction at a low temperature, carrying out a reflux reaction to synthesize D-calcium pantothenate,completely or partially evaporating methanol, adding water, dissolving, filtering, transferring into a spray dryer, and carrying out spray drying to obtain the product D-calcium pantothenate. The product quality meets the industrial standard, and the product yield is increased by 15%-20% compared with the existing process level.

The invention discloses a preparation method for an aramid fiber 1414 based composite material, belonging to the technical field of artificial fibers and composite materials. The preparation method provided by the invention uses poly-para-phenylene terephthalamide and paraphthaloyl chloride as raw materials, performs polymerization, spinning and post-treatment, and strictly controls condition parameters like temperature, viscosity, time, content, spinning speed and tension in the production process, so the production process for the aramid fiber 1414 based composite material is effectively guaranteed to be stably performed; meanwhile, the quality of a target composite material is improved; and the demands of a market are met.

The present application relates to a data processing method and a storage medium for detecting lane lines. The method includes: obtaining the pixel coordinates of at least one lane line sample from the image according to a first preset rule, wherein the first preset rule is used to obtain the pixel coordinates in the y direction of the image; After the coordinates are converted into points in the coordinate system of the unmanned vehicle, multiple sampling point data are obtained; the multiple sampling point data are filtered according to the second preset rule to obtain the target sampling point set, and the second preset rule uses Filtering the non-target sampling points on the lane line under the coordinate system of the unmanned vehicle; performing curve fitting processing on the set of target sampling points, if the radius of curvature corresponding to the curve obtained by the fitting processing is greater than the preset threshold, Then output the lane line, otherwise give up the output. The data processing method and storage medium for detecting lane lines provided by the present application can provide high-quality lane line data for an automatic driving system.

The invention discloses a water pollution treatment device capable of automatically replacing a filter screen. The device comprises a box body, and an inlet hopper groove with an upward opening is formed in the top wall of the box body; an upper separation pipe with an upward opening is arranged on the top wall of the box body and is arranged on the right side of the inlet hopper groove; a precipitation separation cavity is formed between the inlet hopper groove and the bottom wall of the upper side separation pipe; a lower-layer discharge groove with a downward opening is formed in the bottomwall of the precipitation separation cavity; sealing plates are symmetrically arranged on the top wall and the bottom wall of the lower-layer discharge groove up and down; a hydraulic cylinder chutewith a rightward opening is formed in the left end wall of the precipitation separation cavity; a standing separation mechanism is arranged in the hydraulic cylinder chute; the right end wall of the precipitation separation cavity is fixedly connected with a middle-layer discharge pipe; a turntable cavity is formed in the bottom wall of the right end of the middle-layer discharge pipe, a disc is arranged in the turntable cavity, the disc is fixedly connected with a turntable shaft, and the turntable shaft is rotatably connected with the box body. Therefore, the filtering difficulty is greatlyreduced, filtered substances are separately collected, the water pollution treatment efficiency is relatively high, and the continuous improvement of the device treatment capacity is ensured.

The invention relates to a preparation method of a ginkgo tea beverage. The method comprises the following steps: firstly, cutting ginkgo leaves into small fragments, then mixing the fragments with asmall amount of water, carrying out steam stripping at a high temperature for a short time to remove ginkgoic acid and to reduce bitter and astringency, then mixing the ginkgo leaves with tea fragments, honeysuckles and dried lemon slices, adding water, conducting decocting, finally conducting filtration and deposition, filtration again, and conducting seasoning and sterilization, so that the ginkgo tea beverage which is sweet and sour in mouth feel, fragrant in smell and rich in nutrients can be obtained.

The present invention relates to a filter device, more particularly to a waste lubricating oil coupling filter device. Including recovery box, pretreatment box, booster, booster rod, pretreatment roller, scraper, sinking pipe, knocker, treatment pipe, motor seat, filter frame, filter screen II and device base. The waste lubricating oil is layered to treat the lubricating oil with different impurity content separately to increase the filtration efficiency and filtration quality; the relatively clean waste lubricating oil is pushed into the treatment pipe by the push plate for further treatment, which reduces the difficulty of filtering the filter I and prevents clogging. At the same time, the service life of the filter screen I is increased; the waste lubricating oil containing a large amount of impurities and metal particles is peeled off by a cylindrical electromagnet that can be lowered and rotated in combination with a scraper, and the preliminary treatment lubricating oil is obtained by the recovery box and the filter screen II for processing. Further processing is beneficial to increase filtration efficiency and filtration quality.

The invention discloses a production and preparation method for solid poly-aluminum chloride. The production and preparation method comprises the following steps of: (1), heating up 1.32-1.4 tons of hydrochloric acid with concentration of 20%-30% to 90 DEG C to 110 DEG C, adding 0.55-0.6 ton of bauxite for reacting for 1-2 hours under a constant temperature; (2), adding 0.3-0.4 ton of calcium aluminate powder for polymerizing to obtain a liquid poly-aluminum chloride solution; (3), adding fluorite which is 4-5 times silica gel by weight, and reacting for 15-30 minutes under the constant temperature; (4), filtering the reacted aluminum chloride solution by a filter press; and (5), drying the filtered aluminum chloride solution at a high temperature to obtain the solid poly-aluminum chloride. According to the preparation method disclosed by the invention, silicon fluoride with low viscosity is generated by the fluorite and the silica gel with high viscosity in the silica gel reaction solution in a polymerized aluminum chloride solution in a production process, so that the filtering difficulty is greatly reduced and the filter cloth can be recycled after being cleaned, thereby shortening the production time, reducing the production cost, improving the solid content of the liquid aluminum chloride and improving the market competitiveness of the products.

The invention discloses a large-view-field adaptive wall filtering method and system based on hierarchical search, and the method comprises the steps: dividing a whole image into a plurality of regions through a large window, carrying out the filtering, evaluating the blood flow information content of each region, extracting a region with the blood flow information content higher than a threshold value, and carrying out the local filtering processing through a refined small window, each small window is processed by adopting the optimized specific filtering parameters according to the noise level of the corresponding area, finally image reconstruction is carried out, and a complete ultrasonic blood flow image after wall filtering processing is output. The large-view-field adaptive wall filtering method based on hierarchical search provided by the invention is an efficient wall filtering method suitable for large-capacity data, and the operation efficiency is improved; according to the wall filtering method, clutters can be well suppressed, and the filtering quality is greatly improved.

An intelligent dispensing device based on the results of diagnosis and treatment of traditional Chinese medicine, including a housing, the housing is provided with a holder, the holder is connected to the outlet pipe, the outlet pipe is provided with a flow meter and a first electric valve, the holder is provided with a storage tank, and the storage tank is connected to the The feeding pipe is provided with a second electric valve and a photoelectric sensor, a weighing device is installed in the casing, a heating device is installed on the weighing device, a medicine bowl is arranged on the heating device, a blower is arranged in the casing, and a blower is installed in the casing. There is a vacuum cleaner, which also includes a controller located outside the casing. This device is suitable for automatic cooking of Chinese medicinal materials at home or in places such as hospitals and clinics. This device removes the mixed powder dust in the medicinal materials, improves the cleanliness of the medicinal materials, and can reduce the difficulty of filtering the medicinal soup after boiling. The medicinal materials are kept in a cool and ventilated place, which can prolong their storage life. The medicinal materials in the storage tank can also be boiled for many times. Compared with the large-scale medicinal preparation and grasping system, this device can automatically complete the medicinal material measurement, powder removal, water addition, Cooking and other work.

The invention relates to extraction of effective constituents of traditional Chinese medicine, and particularly discloses a fast, green and high-efficiency extraction method of silkworm excrement flavone and a detection method thereof. The extraction method comprises the following steps: collecting silkworm excrement and removing impurities, and obtaining silkworm excrement powder after drying andsmashing the silkworm excrement; by a method of combination of assistance of ultrasonic wave and flash extraction, extracting the silkworm excrement powder with water solution, concentrating and drying extracting solution, and determining content of flavone. In the extraction method provided by the invention, by the method of combination of ultrasonic extraction and flash extraction, compared with the conventional extraction method, damage to thermolabile constituents is avoided, and the extraction method provided by the invention has high yield, is green and environmental-friendly, and remarkably improves transfer rate of effective constituents. Compared with the optimized flavone matter ultrasonic extraction method, the extraction method provided by the invention improves content of flavone by 19.2%, extraction conditions are moderate, usage of all organic solvent is avoided, extractant is environmental-friendly, and the extraction method provided by the invention has the characteristics, such as low extraction cost, and so on; moreover, the waste silkworm excrement is reused, thus, the waste is turned into wealth, and a problem of environment pollution is solved greatly.

The efficient well lid dismantling device comprises a stand column, a rotating column is rotationally connected to the rotating middle of the bottom end of the stand column, five rotating plates are slidably connected to the middle of the bottom end of the outer surface of the rotating column at equal intervals, and an electric telescopic column is welded to the middle of the top end of each rotating plate; a pentagonal strip plate is welded to the top end of an electric telescopic column, a cutting, crushing and taking mechanism is installed in the middle of the inner wall of one rotating plate, a crushing rotating disc and an outer cutting disc can rotate conveniently through a crushing rotating motor in the cutting, crushing and taking mechanism, and the rotating difficulty of the outer cutting disc and an inner cutting disc is reduced; and meanwhile, through cooperation of an inner cutting disc, an outer cutting disc, a hydraulic rod, a threaded rod and a connecting piece, the asphalt pavement on the edge of the well lid can be conveniently cut, the cutting difficulty of the asphalt road side is lowered, the cutting difficulty of the edge of the asphalt pavement of the well lid in the prior art is lowered, and meanwhile the phenomenon that the cutting discs make contact with the well lid is prevented.

The invention discloses a method for demagging ground phosphorite and preparing MgHPO4.3H2O. The invention is characterized in that ground phosphorite is subjected to demagging pretreatment by using a composite demagging agent mainly comprising phosphoric acid as well as a demagging activating agent and a demagging stabilizer, thereby removing magnesium impurities from the ground phosphorite and enhancing the grade of the ground phosphorite; after demagging, the solid phase obtained by liquid-solid separation is the high-grade concentrate powder which can be used as a production raw material for phosphorus chemical industry; and a chemical coprecipitation-oriented crystallization process is utilized to recycle magnesium in the demagging waste liquor, thereby preparing the MgHPO4.3H2O product. After the original medium / low-grade ground phosphorite is treated by the method disclosed by the invention, the mass percent of P2O5 is enhanced by 0.1-5%, the total mass content of P2O5 is increased by 0.1-3%, the condition of severe phosphorus loss in the existing pretreatment method is changed, the removal rate of the magnesium oxide mass content is up to 75-98%, and the purity of the prepared MgHPO4.3H2O is up to 90-98%.

The invention discloses a waste solid garbage treatment system, which includes a crushing device and a permeate treatment device. When the garbage is crushed by the crushing device, the permeate is separated, and is sent to the UASB reactor of the permeate treatment device by a conveying pump for crushing. The device includes a crushing shell, the crushing shell has a built-in active crushing roller driven by a driving motor, the active motor is fixed on the side wall of the crushing shell, and the two sides of the rotating shaft of the driven crushing roller matched with the active crushing roller are sleeved on the Among the shaft sleeves, each shaft sleeve is fixedly connected with the output shaft of the avoidance pneumatic cylinder; the bottom wall of the crushing shell is fixedly connected with a lifting pneumatic cylinder, and the output shaft of the lifting pneumatic cylinder is fixedly connected with a moving plate, and the moving plate is provided with at least one penetration hole.

Disclosed is a method for joint recovery of pectin from citrus peels and alkaline / acidic processing water from citrus canning, including the following steps: adding fresh citrus fruit peels to alkali / acid processing water from citrus fruit canning for extracting; filtering the resulting mixture, adding to the resulting filtrate 95% ethanol 1 to 3 times the volume of the filtrate, and then adjusting the pH to a range of 3.5 to 7, followed by standing for 10 minutes to 4 hours; filtering the product after standing, washing the resulting precipitate with 50% to 70% ethanol, and drying and crushing, thereby obtaining pectin. The method makes full use of waste resources from citrus fruit canning, solves the problem of pollution by processing discharge water, and has the advantages of saving the preparation cost of pectin from citrus peels, and improving the solubility of recovered pectin.

The invention relates to a rainwater treatment system and treatment method for a sponge city, comprising a placement frame, a material cutting and anti-blocking device, and a water collection and filtration device. The sliding mode is connected with the unloading anti-blocking device; the invention solves the problem of the sewer opening being blocked by fallen leaves on the ground and some urban garbage caused by urban greening by cleaning up the leaves and other garbage accumulated by rainwater at the sewer opening to the unloading. Thereby causing problems such as road surface water; the present invention separates the garbage from the sewage, so that the garbage can be collected better, and at the same time, it also reduces the difficulty of filtering the sewage in the sewer, thereby reducing the frequency of manual work in the sewer.

The invention discloses a preparation method of aramid fiber 1414 fiber composite material, which belongs to the technical field of artificial fiber and composite material. The present invention uses poly-p-phenylene terephthalamide and terephthaloyl chloride as raw materials, and through polymerization, spinning and post-treatment, the temperature, viscosity, time, content, spinning speed, tension and other condition parameters in the production process are adjusted. The strict control can effectively ensure the stable production process based on aramid 1414 fiber composite materials, and at the same time, improve the quality of the target composite materials to meet market demand.