8results about How to "Improve filtration stability" patented technology

The utility model relates to the technical field of powder filtering processing, in particular to a powder filtering barrel which comprises a filtering barrel shell, an observation window fixedly arranged on the outer wall of the filtering barrel shell, a sealing cabinet door rotatably mounted on the outer wall of the observation window, three clamping plates fixedly arranged on the outer wall of the sealing cabinet door, and a cover plate arranged above the filtering barrel shell. Limiting rings are fixedly arranged at one end of the filter barrel shell and one end of the cover plate, mounting grooves with the same size are formed in the two limiting rings, a limiting frame is fixedly arranged at the position, located under the mounting groove, of the bottom of one limiting ring, guide rods are fixedly arranged in the limiting frame, and a filter cartridge is arranged in the filter barrel shell; a dismounting structure is fixedly arranged on the outer wall of the filter cartridge, and comprises four supporting plates fixedly mounted on the inner wall of the filter barrel shell, so that the filter cartridge can be quickly dismounted and mounted, and an internal filter screen can be cleaned.

The application relates to a filtering device and a sample pretreatment system, the filtering device comprising: a filtering device, the filtering device comprising a limiting plate and a dripping tube, the dripping tube being detachably inserted into the limiting plate from top to bottom, and the dripping tube being used for filtering supernatant to obtain filtrate; and a pipetting device, the pipetting device comprising a carrier plate, a floating plate, an elastic connecting piece and a sealing plug, the floating plate being arranged at the lower end of the carrier plate, the elastic connecting piece being used for elastically connecting the carrier plate and the floating plate, the sealing plug being fixed to the carrier plate, and the upper end of the sealing plug being connected with a pipetting mechanism, the lower end of the sealing plug being connected with a pipetting tube, the pipetting mechanism being used for driving the pipetting tube to suck the supernatant, and the pipetting mechanism also being used for driving the pipetting tube to inject the supernatant into the dripping tube, in the process of injecting the supernatant into the dripping tube by the pipetting tube, the floating plate abuts against the upper end of the dripping tube, and the elastic connecting piece is compressed between the carrier plate and the floating plate. The application not only facilitates the mounting and dismounting of the dripping tube, improves the processing efficiency, and improves the filtering stability.

This invention discloses a method and its application for enhancing the antibacterial activity of *Propionibacterium f. reudenreichii* subsp. *shermanii* metabolites by adding carrageenan to a semi-solid culture medium. The method uses *Propionibacterium f. reudenreichii* subsp. *shermanii* NBRC No. 12426 as the experimental strain and *Pichia anomala* SICC 2.894 as the indicator strain. It discloses a method for enhancing the antibacterial activity of *Propionibacterium f. reudenreichii* subsp. *shermanii* metabolites against the indicator strain *Pichia anomala* by adding carrageenan to the culture medium. Based on the culture conditions and method of *Propionibacterium f. reudenreichii* subsp. *shermanii* in this invention, the optimal amount of carrageenan added is selected as 0.6%, which significantly enhances the antibacterial activity of the *Propionibacterium f. reudenreichii* subsp. *shermanii* metabolites.

The utility model discloses a kind of combined device for producing biogas and generating electricity by biogas feed liquid, it is related to green new energy technical field, and it includes: storage tank, monitoring mechanism, stirring mechanism and feeding mechanism;Monitoring mechanism includes PH monitor, temperature sensor and biogas component sensor;Stirring mechanism includes mounting shaft, screw thread leaf and stirring frame;Feeding mechanism includes storage barrel and weighing sensor.Utilize monitoring mechanism to realize the real-time feedback of PH, temperature and biogas component data, dynamic adjustment fungicide addition amount, effectively reduce artificial intervention, improve fermentation stability, utilize screw thread leaf can axial advance feed liquid, enhance vertical mixing, stirring frame can be radially stirred, break scum layer and promote mass transfer, prevent bottom precipitation, utilize weighing sensor can accurately control microorganism fungicide addition amount, by electromechanical integration design, the efficient closed loop of monitoring-regulation-gas production-power generation is realized, especially suitable for small and medium scale biogas engineering.

The utility model discloses a molten aluminum filtering device, which relates to the technical field of molten aluminum filtering and comprises a filtering box, a discharging pipe is fixedly connected to the inner wall of the filtering box, a butterfly valve is rotatably connected to the inner wall of the discharging pipe, a feeding pipe is fixedly connected to the inner wall of the top of the discharging pipe, and the butterfly valve is rotatably connected to the inner wall of the feeding pipe. A filtering mechanism is arranged on the outer wall of the filtering box and comprises an L-shaped plate, through the fixing rod and the filtering plate, when the disc rotates, the fixing rod is driven to do circular motion, when the fixing rod moves, the connecting rod is driven to do arc-shaped motion, when the connecting rod moves, the rotating shaft is driven to move, and then the rotating shaft drives the U-shaped plate to move back and forth; and meanwhile, the U-shaped plate slides in the sliding rail and the square groove, and then drives the filtering plate to move when the U-shaped plate moves, so that the filtering efficiency is improved, the flowing speed of the molten aluminum is changed through vertical movement of the filtering plate, and the situation that the flowing speed of the molten aluminum in the equipment is low, and consequently the filtering efficiency of the molten aluminum is reduced is avoided.

The utility model discloses an edible oil processing and extracting device, and belongs to the technical field of edible oil processing. Comprising a box body, a top cover arranged at the top end of the box body, a feeding opening formed in the top cover, a filtering assembly arranged in the box body in a sliding mode, a vacuum pump arranged on the side wall of the box body and a discharging opening formed in the bottom end of the box body. The filter assembly comprises a filter cartridge, a plurality of filter screens and a limiting assembly; the filter cartridge is arranged in the box body in a sliding manner; the top end and the bottom end of the filter cartridge are opened; the plurality of filter screens are distributed in the filter cartridge up and down and are detachably connected with the filter cartridge; and in the plurality of filter screens, the hole diameters of meshes are gradually reduced from top to bottom. According to the multi-stage filter structure, solid impurities with different particle sizes can be filtered by different filter screens in a graded manner, so that the blockage probability of the filter screens is reduced, the single-time filtering time is prolonged, the cleaning frequency of the filter screens can be effectively reduced, and the filtering efficiency is improved.

The utility model discloses a kind of filtering and impurity removing equipment of printing ink waste liquid, including filter shell, and it is installed three groups of staggered filter assembly and collection assembly by support frame. Filter assembly contains outer filter ring, inner filter ring, inner filter screen etc., and large particle impurities are filtered through inner filter screen, and impurities are cleaned by scraping rod. Collection assembly is formed by outer filter screen etc., and is used to collect impurities. Driving shaft is rotated by connecting ring, main shaft drive driving ring. Guiding ring guides waste liquid flow, and inner filter ring controls liquid flow. Sealing structure is arranged between driving shaft and infusion tube. The equipment solves the problems of low filtering efficiency, impurity blockage, inconvenience of collection and processing, poor liquid flow and poor driving sealing of traditional equipment, realizes efficient filtering and impurity removal of printing ink waste liquid, and meets the needs of environmental protection and resource recovery.

This invention discloses an integrated switch-on filter, comprising a housing, a filtering mechanism, and a water-stopping mechanism. The housing has an inner cavity, with an inlet pipe and an outlet pipe communicating with the inner cavity. A switch valve is installed on the inlet pipe to open or close the inlet pipe. The filtering mechanism is detachably connected to the inner cavity and positioned between the inlet and outlet pipes, filtering water. The water-stopping mechanism includes a check valve and a sealing ring. The check valve is fixedly connected to the inlet pipe, and the switch valve is positioned between the check valve and the filtering mechanism. The check valve prevents water from flowing from the filtering mechanism to the inlet pipe, and the sealing ring is positioned between the check valve and the inlet pipe. This integrated switch-on filter not only prevents water backflow into the water pipe, thus preventing water source pollution, but also improves the filter's integration, reduces the installation space required, and enhances the user experience.