9results about How to "Solve filterability" patented technology

A safe treatment device for chemical waste gas filtration relates to the technical field of chemical waste gas treatment and comprises a base, a box is mounted at the top of the base, a drainage pipe is mounted at the edge of the lower end of a front view surface of the box, and a gas inlet pipe is mounted at the lower end of a right view surface of the box. A plurality of groups of air outlet holes are formed in the outer ring surface of the air inlet pipe located in the box body, an exhaust port is formed in the left view surface of the box body, a filter plate is installed in the exhaust port, a filter bin is installed at the position, located on the exhaust port, outside the box body, and an exhaust pipe is installed outside the filter bin; according to the filter plate cleaning device, the cylindrical block rotates to synchronously drive the sliding block to slide in the spiral groove so as to drive the connecting rod to continuously ascend and descend, and the connecting rod ascends and descends and drives the cleaning brush to clean the filter plate at the same time; the problems that the filtering effect is reduced and cleaning is inconvenient due to the fact that a filter plate in a traditional chemical waste gas filtering safety treatment device adsorbs a large number of impurities after being used for a long time are effectively solved.

The utility model relates to a simple hair loss detection box belongs to medical detection technical field. The simple hair loss detection box, including storage box A, storage box B, reaction box, filter screen and limit ring, storage box A is equipped with storage box B and reaction box in proper order on, the upper end face of reaction box is equipped with heating warm and is pasted, the lower end inside of reaction box is equipped with filter screen through limit ring. The simple hair loss detection box, compact structure, clever design, not only can store reaction liquid medicine and reaction powder can also carry out filtration and heating reaction thus solved the existing existing hair loss reagent box lacks the problem of long time of filtering and reaction, especially suitable for the need of hair loss detection use.

This invention relates to a static high-temperature and high-pressure filtration loss testing device for drilling fluid and its usage method. The device comprises an adjusting seat, a heating jacket, an inner cylinder, and a pressure regulating component. The heating jacket is mounted on the adjusting seat, which is used to position the heating jacket at different tilt angles. The inner cylinder is located inside the heating jacket. The pressure regulating component is connected to the upper and lower ends of the inner cylinder via upper and lower valve stems, respectively. The inner cylinder includes a cylinder body and a filter assembly. An installation groove for installing the filter assembly is formed on the inner side wall of the cylinder body. A filtrate channel is formed inside the cylinder body, with one end connected to the installation groove and the other end connected to the lower valve stem. This static high-temperature and high-pressure filtration loss testing device for drilling fluid can obtain more accurate test data, better guiding the research and development of drilling fluid treatment agents and the evaluation of drilling fluid performance, especially for drilling fluid operations in deep and ultra-deep wells.

This invention discloses a method, terminal device, and storage medium for noise identification and filtering in lidar, comprising: clustering line segments according to distance similarity in the scanning order for each scan line, marking suspected noise line segments in each scan line to obtain a set of suspected noise line segments; performing rapid clustering on each suspected noise line segment in the set to obtain multiple targets, and deleting point noise corresponding to targets containing fewer than a threshold line segments from the point cloud; calculating the linear representation of the suspected noise line segments and determining whether it is a centripetal line, and deleting the linear noise corresponding to the centripetal line from the point cloud. This invention is applied to the field of lidar, solving the problem of identifying and filtering point and linear noise in lidar, with low time consumption, compatibility with any multi-line mechanical rotating lidar, strong generalization ability, and the ability to retain real target point clouds with similar noise while filtering noise, resulting in extremely low false detection and false detection rates.

The utility model relates to caustic soda production equipment technical field discloses membrane filter and caustic soda primary brine refining system, including the body, the bottom dead fixedly connected with the feed inlet of body, the bottom dead fixedly connected with the discharge gate of body, the front end of feed inlet is provided with pretreatment mechanism, the rear end of discharge gate is provided with sealing mechanism, the pretreatment mechanism includes the pipe body, the outside slide connection of pipe body is in the front end of feed inlet, the inside of pipe body is provided with filter screen, the top fixedly connected with the limiting block of pipe body, the inside fixedly connected with telescopic column of limiting block. The utility model solves the problem that the larger particle's impurity is easy to jam or wear the core filter membrane in the prior art, reaches to the technical effect that the salt water carries out the primary filtration, effectively protects the core filter membrane, prolongs its service life, and improves the overall filtering effect.

The utility model discloses a non-coal mine safety fan which comprises a fan body, a mounting cylinder is arranged on the outer side of the fan body, clamping rods are fixedly connected to the two sides of the mounting cylinder, clamping sleeves are arranged on the outer sides of the clamping rods in a sleeving mode, locking sleeves are arranged on the outer sides of the clamping sleeves, a plurality of locking grooves are formed in the outer sides of the clamping sleeves, and releasing sleeves are arranged on the outer sides of the clamping sleeves. A locking frame is arranged on one side of the release sleeve, a locking rod is arranged in the locking frame, a sliding groove is formed in the clamping sleeve, a clamping block is arranged on the outer side of the clamping rod, a moving groove is formed in the outer side of the clamping rod, a movable groove is connected to one end of the moving groove, a positioning groove is connected to the other end of the movable groove, a release groove is formed in the inner side of the release sleeve, and a clamping groove is formed in the inner side of the clamping sleeve. According to the fan protection device, the safety protection of the fan is realized, the mounting stability of the protection plate is ensured while the protection plate is conveniently disassembled and assembled, and the stable use of equipment is ensured.

This utility model relates to the field of waste gas recovery technology and discloses an integrated waste gas recovery and purification device, including a storage tank. Connecting pipes are fixedly connected to both sides of the outer wall of the storage tank. A diversion box is fixedly connected to one end of the left connecting pipe, and an inlet pipe is fixedly connected to one side wall of the diversion box. A purification box is fixedly connected to one end of the right connecting pipe. A return assembly is provided on the side wall of the purification box, and the return assembly includes a diversion box two, with a return pipe fixedly connected to the top of the diversion box two. In this utility model, waste gas is first purified for particulate matter in the storage tank, then enters the purification box for further purification, and finally enters the diversion box two. After being detected by a sensor, if the gas passes the test, it is discharged; otherwise, it returns to the diversion box one through the return pipe for further purification. This achieves highly efficient filtration of waste gas, solving the problem of clogging caused by direct filtration of waste gas in traditional devices and improving waste gas purification efficiency.

This application provides a method for preparing a foam ceramic filter using waste chromium corundum, relating to the field of foam ceramics. The method includes: grinding the waste chromium corundum and then sieving it through a 200-mesh sieve to obtain the undersize; mixing a first raw material, sintering it, and then cooling and pulverizing it to obtain a first powder; the first raw material includes 95-97% undersize, 1-2% nano-lanthanum oxide, 1-2% nano-cerium oxide, 0.5-1% sodium dodecylbenzenesulfonate, and K... 4 Sb 2 O 7 0.1-0.5%; the second raw material is mixed with water and stirred to obtain a slurry; the second raw material includes 50-70% of the first powder, 20-40% of alumina, 5-10% of zirconium oxide, 1-5% of isothiazolinone derivative, and 1-5% of ammonium carbonate; the slurry is impregnated with a carrier, then extruded and dried to obtain a blank; the blank is sintered and cooled to obtain a foam ceramic filter. The method provided in this application can prepare foam ceramic filters using waste chromium corundum.

This utility model relates to the field of scum removal systems, specifically to an automatic scum removal system for high-efficiency tanks. It includes a scum collection hopper, a connecting pipe, a primary connecting hose, a submersible pump, a secondary connecting hose, a scum hopper, a movable rod, a connector, and a lifting screw. A connector is installed at the bottom of the lifting screw, and movable rods are installed on all four sides of the connector. The bottom of the movable rods can move on the upper side of the scum hopper. The bottom of the scum hopper is connected to the secondary connecting hose, which is connected to the bottom of the submersible pump. The primary connecting hose is installed on the upper side of the submersible pump, and a connecting pipe is installed at the other end of the primary connecting hose. The scum collection hopper is installed at the bottom of the outlet end of the connecting pipe. As the lifting screw moves up and down, and the submersible pump operates, a high liquid level difference is generated, creating a flow velocity. Scum quickly enters the scum hopper and is then pumped into the scum collection hopper by the submersible pump. The filtered water returns to the high-efficiency tank, resulting in high scum removal efficiency and solving the problem of scum accumulation affecting subsequent continuous sand filters or precision filters.