7results about How to "Reduce usage load" patented technology

The invention discloses a large storage tank fiber bragg grating visual monitoring method and device based on an inverse finite element and a storage medium. The method comprises the steps that the tank wall of a storage tank is divided into units, monitoring points are selected at equal intervals in combination with the requirements of storage tank foundation design specifications, and grating strain sensors are arranged in the divided units; the collected real-time data are preprocessed, and gross errors generated in the monitoring process are eliminated; and according to the preprocessed grating strain sensor data, reconstructing by using an inverse finite element method to obtain the overall real-time strain and displacement data of the storage tank, and visualizing the overall real-time strain and displacement data. According to the method, guidance can be provided for measuring point setting and arrangement, the system building cost is reduced, the overall working condition of the storage tank can be rapidly and accurately monitored for a long time, the visual detection function is provided, in addition, the calculated amount for calibrating forward finite elements can be greatly reduced, and the system reliability is improved.

The invention discloses a circulating filtering mechanism for a cleaning machine, which belongs to the technical field of cleaning machines and comprises a circulating filtering box, a water inlet formed in one side of the top of the circulating filtering box and a circulating water pump mounted on the side edge of the circulating filtering box. The impurity collecting bin, the precipitation bin and the filtering bin are arranged in the circulating filtering box, the large impurity filtering mechanism obliquely arranged between the impurity collecting bin and the water inlet is matched, large impurities can be pretreated, then the large-mass particle collecting mechanism at the top of the precipitation bin is utilized, and the large-mass particles can be recycled. Impurity particles with large specific gravity can be collected and stored so that metal particles can be recycled, and finally, scraped impurities can be discharged while a fine filter screen is cleaned by utilizing a cleaning mechanism in a filtering bin, so that the functionality of the device is improved, and the filtering and circulating effect is improved by adopting a staged treatment mode; and the use load of the filter screen is reduced.

A photovoltaic tracking system with special cross section and eccentricity overcoming device, the main beam cross section is a rounded square tubular structure; the eccentricity overcoming device is installed between the common column and the main beam of the photovoltaic tracking system, and comprises a mechanism support, a mechanism body and a mechanism fixing seat which cooperate with each other; the mechanism support is fixed on the main beam, and the mechanism fixing seat is fixed below the common column of the photovoltaic tracking system; the mechanism body comprises a hydraulic cylinder and a cylinder barrel which cooperate with each other, the upper end of the cylinder barrel is hinged on the mechanism support and moves under the drive of the mechanism support on the main beam, the tail end of the hydraulic cylinder is hinged on the mechanism fixing seat and forms relative movement with the cylinder barrel, the limiting structure of the cylinder barrel and the two springs act on the springs respectively to compress the springs and generate a thrust on the mechanism support to overcome the gravity eccentricity of the rotation of the photovoltaic tracking system, the torsional performance of the main beam is improved and the torsional deflection is reduced, the damping effect is achieved, and the rotation eccentricity of the photovoltaic tracking is overcome.

The present application is applicable to the field of data processing technology, and provides a data ad hoc query method based on data snapshot and related equipment, the method comprising: determining a target data table in a database of different data types based on user selection information; determining dimensions and measurement data of ad hoc queries according to business demand data, and generating query statements according to the dimensions and measurement data; extracting target fields corresponding to the query statements in the target data table through streaming query technology according to the query statements to obtain mirror data; establishing an association relationship between the mirror data tables through a star data model, performing data query on the mirror data according to the association relationship and the query statements to obtain query results; solidifying the query results to obtain data snapshots, and generating a single target query table according to the data snapshots.

The utility model relates to the technical field of dust collection devices, in particular to a kiln head dust collection device. According to the technical scheme, the device comprises an air supply hood, a kiln head exhaust hood, a conveying roller, a mounting pipe and a dust remover, the air supply hood is arranged at the upper end of the kiln head exhaust hood, the mounting pipe is arranged on one side of the lower end of the kiln head exhaust hood, the conveying roller is arranged in the kiln head exhaust hood, and the outer wall of the conveying roller is rotationally sleeved with a conveying belt; a mounting plate is arranged on the outer wall of the conveying belt, a brush strip is arranged at the upper end of the mounting plate, a second motor is arranged at the front end of the kiln head exhaust hood, a filter bag is arranged in the dust remover, a rotating roller is arranged in the mounting pipe, a twisting piece is arranged on the outer wall of the rotating roller, and a first motor is arranged at one end of the mounting pipe. According to the utility model, the kiln head gas guide cover is arranged between the kiln head and the bag-type dust collector, so that large-specification dust is filtered, the content of dust in flue gas is reduced, and the problems of large loss and shortened service life of a filter bag in the bag-type dust collector caused by high-flow flue gas are avoided.

The present invention provides a perchlorate wastewater treatment agent, which consists of a targeted removal agent and a guiding activator. The core components of the targeted removal agent include octyl trimethyl ammonium chloride, trioctyl methyl ammonium chloride, benzyl trimethyl ammonium chloride, decanyl trimethyl ammonium chloride, didecyl dimethyl ammonium chloride, dodecyl trimethyl ammonium bromide, dodecyl bishydroxyethyl methyl ammonium chloride, tetradecyl trimethyl ammonium chloride, etc. The guiding activator includes one or more of polyferric sulfate, polyferric chloride, polyaluminum chloride iron, and polyaluminum silicate iron. The treatment agent of the present invention has simple components, and a large number of perchlorate-philic ionic groups contained therein can fully combine with perchlorate in wastewater, and perchlorate is precipitated from water in the form of precipitation, and then separated and removed, and the one-step removal rate is as high as more than 95%.

The present invention relates to a method and device for capturing complex flue gas on the surface of a smelting pot, and the steps are as follows: a cover is arranged at the edge of the smelting pot to cover the edge, and an opening for the stirring shaft to enter and exit is arranged in the center of the cover top; a plurality of flaps and a flue gas duct connected to the dust collection system are arranged on the cover top, and the movable cover can be opened and closed to meet the needs of feeding, slag removal and observation of the smelting pot, while ensuring that the flue gas does not leak out; an automatic reset feeding flap is arranged at the connection between the rear end of the cover and the feeding device, and the flap is pushed open during feeding, and automatically reset and closed after feeding to ensure that the flue gas does not leak out. The cover top of the device is divided into a feeding and melting area, a stirring operation area, a flue gas capture area and a feeding and slag removal operation area, and feeding flaps, sealing flaps, a flue connected to the dust collection system and slag removal flaps are arranged respectively. The method and device of the present invention are easy to manufacture and install, simple and convenient to operate, and can fully capture flue gas to ensure the normal operation of the dust collection system without affecting the normal implementation of various operations on the pot surface platform.