417 results about "Scraper site" patented technology

A method and system is provided that in a fully automated manner crawls web sites and identifies specific types of web pages, then extracts targeted data from those web pages. One or more text nodes containing product-related information on a first web page are first identified, and the locations of those text nodes are described using one or more vectors. The vectors are then analyzed to identify one or more patterns and to generate a model from those patterns that discriminates between text nodes that contain product-related information and text nodes that do not contain product-related information on a second web page. The model can then be used to crawl web sites to identify and extract targeted data, or the model can be installed on a user's computer to identify and extract targeted information from web sites as the user is browsing.

The invention relates to a method of directionally acquiring Internet resources, comprising the following steps: determining the scope of the websites from which webpages are to be captured, the information of the resources to be acquired and the types of the resources; acquiring effective webpages which correspond to the types of the resources on each website through human-computer interaction according to the types of the resources; generating the configuration information on the information of the resources to be acquired according to the uniform resource locators of the websites and the effective webpages, the webpage structures and the information of the resources to be acquired; capturing text information which is matched with the configuration information on the information of the resources to be acquired on the websites, and saving the text information; indexing deeply the captured text information through human-computer interaction; and creating indexes for the text information which is indexed deeply so as to facilitate the text information indexing by the user. The system of directionally acquiring Internet resources comprises an Internet resource directionally acquiringunit and a text information deeply indexing unit. Through directionally acquiring the Internet resources with the searching engine, the problems on the generation of a large amount of junk information, the replication of resources, the disorganization of resources and the invalidation of the webpage snapshot, which can be caused by the commonly-used method of acquiring the Internet resources withthe searching engine, are solved.

This invention relates to a scraper type bidirectional high temperature metal hard seal ball valve, which contains valve body, valve base, valve rod, seal piece and installation piece, wherein the valve body has left and right valve body respectively having valve base, one is float valve base, the scraper is made in left and right valve body and connected with ball, the seal device is set between valve body and float valve base to prevent effectively the impurity n valve cavity entering the spring cavity between float valve base and valve body for avoiding the impurity expansion locking the float valve base and ball expansion locking at high temperature work state. Said invention has convenient and reliable open and close, adaptation for the valve switch in coal and oil refining engineering pipeline.

The invention discloses a sewage sedimentation device convenient for sludge discharge. The device comprises a tank, a water inlet pipe, a stirring plate and a mixer shaft. the bottom of the tank is provided with a conical cavity shaped as an inverted cone structure. The inner wall of the conical cavity is abutted against symmetrically-arranged scraper plates. The bottom of the tank is communicatedwith a vertical pipe, inside which a spiral blanking roller is arranged. the top of the spiral blanking roller is fixedly connected with the scraper plates. Through the tank provided with the conicalcavity, the scraper plates which are abutted against and slidingly connected with the inner wall of the conical cavity and the spiral blanking roller arranged inside the vertical pipe, the settled sludge is efficiently collected and discharged, and it is convenient to clean sludge while obstruction of a sludge discharge pipe is avoided. Through the stirring plate provided with a central pipelineand an overflow orifice, a gear pump and a hollow mixer shaft, efficient and uniform diffusion of a flocculating agent is realized, mixing uniformity and efficiency of the flocculating agent are raised, and sediment generation is accelerated.

The invention discloses a website security detection system which comprises a website security detection device, one or a plurality of web servers and a web crawler device. The website security detection device is suitable for receiving web addresses from the web crawler device and constructing detection web addresses correlated with the web addresses to utilize the detection web addresses to visit websites so as to judge whether leaks occur in the web addresses. The one or the plurality of web servers is suitable for responding to visit of the website security detection device to the websites and returning results to the website security detection device. The web crawler device is suitable for capturing the web addresses of the websites from the one or the plurality of web servers and sending the web addresses to the website security detection device.

The invention relates to a ground brush of a dust collector. The ground brush comprises a shell and an elbow connector, wherein the shell is composed of an upper cover and a bottom cover provided with an air inlet channel, and the elbow connector is arranged at the rear end of the shell. The upper cover and the bottom cover are fixedly connected. The air inlet channel comprises an air inlet and an air outlet. The air outlet is communicated with a pipe cavity of the elbow connector. A scraper structure is fixedly arranged on the bottom cover and comprises a plurality of scraper units arranged on the front side and the rear side of the air inlet. Each scraper unit comprises a plurality of scrapers which are arranged on the bottom cover in parallel. The included angle formed between each scraper and the length direction of the bottom cover is an acute angle. The ground brush of the dust collector can collect rubbish without dead angles, and cleaning capacity is efficient.

The invention discloses an intelligent lifting method and an intelligent lifting device for a scraper knife in an engineering machine. The method comprises the following steps of: (1) judging the current working mode; (2) comparing the conversion speed of the current revolution speed of a wheel with the current actual ground speed of the machine: if the current actual ground speed of the machine is smaller than the conversion speed of the current revolution speed of the wheel, judging that the wheel slips, and entering a step (3), otherwise, entering a step (4); (3) outputting an instruction for lifting the scraper knife; and (4) detecting the load of the scraper knife: when the power corresponding to the current load of the scraper knife is greater than the maximum power supplied to the scraper knife by an engine or the power corresponding to the set load, outputting an instruction for lifting the scraper knife. The device comprises a scraper knife lifting module, a control module, a load detection module for detecting real-time load condition of the scraper knife, a ground speed detection module and a wheel revolution speed detection module. The device has the advantages of simple and compact structure, simple principle, good reliability, capabilities of adjusting the load in real time, improving the work efficiency and reducing the labor intensity of workers and the like.

The invention belongs to the field of welding machines and specifically relates to a flux-cored wire for overlaying of a water-cooled grate plate and a scraper plate. The present invention intends to solve the technical problem of poor properties of the existing flux-cored wire for the overlaying of the water-cooled grate plate and the scraper plate. The flux-cored wire for the overlaying of the water-cooled grate plate and the scraper plate provided by the present invention comprises a flux core and an outside wrapping steel strip; the flux core part contains the following components in percentage by weight: 1.75-2.85% of C, 0.25-0.65% of Si, 0.55-1.75% of Mn, 23-32% of Cr, 0.50-1.65% of Ni, 0.82-2.5% of Mo, 0.21-0.65% of V, 1.91-4.23% of W, 0.25-0.72% of Nb, 0.45-0.96% of B, 0.21-1.22% of Re, and the balance of iron and inevitable impurities. The overlaying alloy of the flux-cored wire of the present invention is capable of greatly prolonging the service life of the water-cooled grate plate and the scraper plate, and has a bright application prospect.

A pump for transporting particulate material includes an inlet, an outlet, a passageway, a first and second load beam, a first and second scraper seal, and a first and second drive assembly. The inlet introduces the particulate material into the passageway and the outlet expels the particulate material from the passageway. The passageway is defined by a first belt assembly and a second belt assembly that are opposed to each other. The first and second load beams are positioned within the first belt assembly and the second belt assembly, respectively. The first scraper seal and a second scraper seal are positioned proximate the passageway and the outlet. The first drive assembly is positioned within an interior section of the first belt assembly and drives the first belt assembly and the second drive assembly is positioned within an interior section of the second belt assembly and drives the second belt assembly.

A method (100) of crawling the Web (620) is disclosed. The method (100) crawls (120) Web pages on the Web starting from a given (110) set of seed Universal Resource Locators (URLs). Crawled Web pages are partitioned (140) into sets of relevant and irrelevant pages. A set of exclusion and/or inclusion patterns are discovered (150) from the sets of relevant and irrelevant pages, and subsequent crawling of the Web is restricted through the set of exclusion and/or inclusion patterns.

The invention discloses a webpage crawling method for Web site product information obtaining. First, a home page of first-level classification of site products is subjected to crawling, and by analyzing crawled classification home page source files, a next-level product classification home page link is obtained; then step-by-step crawling is carried out until all classification home pages of a site are subjected to crawling; and by analyzing source files of all classification sub-pages, page turning elements and classification page numbers are obtained, then classification sub-page links are generated, and finally, according to the classification sub-page links, classification sub-page crawling is completed. Meanwhile, by analyzing crawled product classification sub-page source files, product detailed information and classification information of products are extracted, the mapping relation of site product id, classification id and other detailed information is established, and a product information base is established.

The invention discloses a feed premixing apparatus, which comprises a frame and a mixing barrel arranged on the frame. A medium division plate is horizontally arranged at an intermediate position inside the mixing barrel and is provided with at least two through-holes. A stirring shaft is vertically arranged at an intermediate position of the mixing barrel and is equipped with a spiral stirring blade. In the mixing barrel, the stirring shaft is provided with a scraper plate. A speed reduction motor is started to drive the stirring shaft to rotate. Raw materials needing to be mixed of the feed are poured in the mixing barrel from a feeding hole formed in the top part of the mixing barrel, and the raw materials fall on the medium division plate, undergo primary mixing through the function of the spiral stirring blade and the scraper plate, fall off through the through-holes in the medium division plate, and are subjected to secondary stirring through the spiral stirring blade and the scraper plate arranged below the medium division plate. Through primary and secondary stirring, dead corners of mixing are prevented, and complete mixing of raw materials of feed is achieved.

A linear guide device includes a guide base with two lateral surfaces and a top surface covered with a cover strip, a rotor that wraps around at least a portion of the guide base, so that the rotor is supported on the guide base as it moves longitudinally along its longitudinal axis, and at least one scraper unit installed on the rotor on its end faces extending orthogonally to the longitudinal axis, wherein the scraper unit includes a main body and at least one sealing lip, which is at least partially in contact with the top surface and the lateral surfaces of the guide base. The sealing lip of the scraper unit is equipped, at least partially, with at least one reinforcing element.

The present invention relates to a scraper device of gravure printing machine. Said scraper device comprises the following components: A. in the shaft sleeve of each of two sides of scraper synchro lifting an up-down movement column is positioned respectively; B. on the top end of said movement column a plate-turning shaft sleeve is fixedly mounted, in said shaft sleeve a turnable scraper plate-turning shaft is positioned; and C. on the scraper plate-turning shaft a scraper carrier device also is positioned, and said device also is equipped with a scraper-skipping prevention mechanism. Said invention also provides the concrete structure of said scraper-skipping prevention mechanism.

The invention discloses an English teaching device. The English teaching device comprises a plurality of magnet strips arranged in a blackboard and sliding rails arranged at left and right ends of the blackboard, wherein a sliding plate provided with rollers is arranged in the sliding rails; a scraper plate is arranged on the upper side of the sliding plate; a bottom plate is arranged on the lower side of the sliding plate; soft bristles are arranged at one end, in contact with the blackboard, of the bottom plate; baffles are arranged at two ends of the sliding plate; the baffles, the bottom plate and the scraper plate are in contact with the blackboard to form an iron particle accommodating cavity; a plurality of iron particles with the peripheries coated with a white coating are arranged in the iron particle accommodating cavity; a driving mechanism used for driving the sliding plate to move up and down is arranged at the upper part of the blackboard; a blackboard wiping mechanism is arranged on the sliding plate and connected with a vibratory dust collection mechanism; and a rod body of an electric telescopic rod is provided with a guide sleeve. A teacher can perform line drawing in a long distance to draw a four-line-grid specification, the blackboard can be wiped while the line drawing is carried out, and dust can be collected, so that the teacher and students can be prevented from absorbing the dust; and the device runs stably and does not damage the blackboard.

The invention relates to the technical field of molecular distillation and discloses a molecular distiller. The molecular distiller comprises a motor, a distillation cylinder, a heating jacket located outside the distillation cylinder, and a condenser and a membrane scraper located in the middle of the distillation cylinder. The membrane scraper is driven by the motor and is arranged in the distillation cylinder and close to the inner wall of the distillation cylinder. The membrane scraper comprises several membrane scraper groups. The membrane scraper group at least comprises a scraper plate and a flexible scraper blade, the flexible scraper blade is arranged at the rear end of the scraper plate, and the scraper plate and the flexible scraper blade slide along a rotation direction of the membrane scraper. The scraper plate and the distillation cylinder inner wall form an appropriate space and do not contact with each other. A part of the flexible scraper blade fits to the inner wall of the distillation cylinder. The molecular distiller utilizes a combined structure of the rigid scraper plate and the flexible scraper blade, forms a uniform liquid material membrane, prevents mechanical friction between the membrane scraper and the evaporation surface, and is particularly suitable for molecular distillation of the heat-sensitive material and/or the mechanical friction sensitive material.

The invention discloses a pressure feedback scraper module. The module comprises a scraper seat and a pressurizing part, wherein a scraping blade for contacting a soft substrate is arranged in the scraper seat; and the pressurizing part is connected with the scraper seat for applying pressure to the scraper seat; at least two pressure sensing modules are arranged at two sides of the scraper seat for sensing at least two pressure values transferred when the scraping blade contacts the soft substrate and outputting the pressure values to a pressure control module; and the pressure control module calculates a proper way for adjusting a pressurizing part according to the received pressure values so as to control the pressurizing strength and the pressurizing direction of the pressurizing part on the scraper seat. The pressure feed back scraper module can print a film with similar thickness on surfaces of objects which are to be printed and have different areas, reduces errors to achieve the practical effect of better printed quality, and can prevent that the scraper is too close to the soft substrate to scrap the surface of the soft substrate.

The invention discloses a webpage crawling method and device. The webpage crawling method comprises the steps that a dynamic flow quota value for webpage crawling on a target website is obtained; according to the dynamic flow quota value, webpages on the website are crawled. By the adoption of the webpage crawling method, when the webpages of the website are crawled through a crawler program of a search engine, the conflict between the crawler program and the crawled website is reduced, and the crawling action of the crawler program and the updating need of the search engine are reasonably balanced.