20results about How to "Guaranteed permeability" patented technology

The utility model relates to chemical engineering technical field, concretely is a kind of separation device of liquid phase ammonia-containing mixed product, including separation tank, filter box, filter screen, mobile device and filter screen cleaning device, the top of separation tank is installed with connecting pipe, the outer wall of connecting pipe is installed with pump body, the top of connecting pipe is installed with the filter box, the top of filter box is installed with liquid inlet pipe, the inside of filter box is installed with the filter screen, the lateral wall of filter box is installed with collection cover by the mobile device, pass through mobile device and drive collection cover synchronous movement, realize the cleaning of each orientation of filter screen, adopt "filter screen+nanofiltration membrane" two-stage separation mechanism, first rough then fine, improve overall separation efficiency, filter screen cleaning device and mobile collection cover work cooperatively, realize on-line automatic cleaning, the design of filter screen cleaning device makes filter screen can keep clean state, improve the reliability of overall equipment.

The utility model discloses a kind of pipeline micro-leakage detection terminal, belong to pipeline detection technical field, including operation platform, the both sides of operation platform top are also provided with support frame, the one end of two support frames is equipped with driving motor, and driving motor output end is equipped with the threaded rod of rotationally connected in support frame interior, two support frames interior are slidably connected with sliding block, and two sliding blocks are respectively and two threaded rods screw connection, two sliding blocks top are equipped with lug, and two lugs top are equipped with liquid storage tank, hollow ring is arranged between two support frames, and a circle of nozzle is communicated in hollow ring inner side, move by driving motor to drive sliding block, and further drive hollow ring to move, then nozzle sprays soap solution, reaches to the effect that soap solution is automatically sprayed to pipeline surface, to facilitate to the effect that pipeline micro-leakage is detected, can reduce manual intervention, reduce labor intensity, and automatic sprinkling, covering speed is fast, to be able to improve detection efficiency.

The present application relates to the technical field of material performance testing, and discloses a kind of test methods for evaluating the chemical solvent penetration resistance of reinforced plastic, comprising the following steps: constructing inverse transfer function to compensate platform lag, using historical strain data to predict the starting time of microcrack opening in the next cycle, combining platform inherent delay to calculate instruction sending time, based on stiffness attenuation rate calculated in real time to adaptively adjust the best disturbance frequency, using inverse transfer function to generate modified disturbance instruction and superimposed injection, deducting fluid viscous damping work previously calibrated from single cycle data to obtain effective dissipation density, determining failure end point based on the second derivative change of effective dissipation density sequence.The present application realizes the time synchronization of pressure wave and crack opening through prediction feedforward strategy, maintains deep penetration driving force using adaptive disturbance, and eliminates fluid damping interference through energy decoupling mechanism, improving the authenticity and result accuracy of stress-assisted solvent penetration test.

The utility model relates to the technical field of ventilation equipment, especially a ventilation equipment for house building, which is provided with a ventilation mechanism capable of filtering external impurities, realizes the removal of external impurities of the filter screen, maintains long-term permeability, and optimizes the ventilation effect, comprising a ventilation frame, a mounting piece, a motor connecting frame, a rotary drive motor, a synchronous shaft, a rotary frame, springs, a brush holder, brushes and a filter screen, the rear part of the outer side of the ventilation frame is provided with the mounting piece, the rear part of the inner side of the ventilation frame is connected with the outer side of the rotary drive motor through the motor connecting frame, the output end of the rotary drive motor is connected with the rear side of the synchronous shaft, the front end of the synchronous shaft is connected with the rear middle part of the rotary frame, the rear end of the rotary frame is respectively connected with the front side of the brush holder through multiple groups of springs at the positions on both sides of the synchronous shaft, and each group of brush holders is respectively connected with a group of brushes at the rear side, the front side in the ventilation frame is provided with the filter screen, and the brushes are movably contacted on the front side of the filter screen.

This invention discloses a feeding device for the production of hydroxyapatite powder, aiming to solve the problems of uneven feeding, clogging, and dust pollution caused by the poor flowability and easy agglomeration of this type of powder. The device includes a frame, a feeding channel, a crushing device and a dust removal assembly located within the channel. The crushing device includes a fixed rod and a movable crushing shovel driven by a drive assembly, effectively preventing material bridging and agglomeration through active, reciprocating crushing action. The dust removal assembly includes a suction chamber, a filter screen, and a cleaning roller brush. When the crushing shovel moves, this mechanism can be periodically actuated, driving the cleaning roller brush to automatically clean the dust accumulated on the filter screen. This invention cleverly combines active crushing with a mechanically linked self-cleaning dust removal function, eliminating the need for an additional power source for the cleaning function. Its compact structure enables uniform, stable, and dust-free feeding, effectively improving production efficiency and environmental quality.

The application provides a supporting structure for landslide emergency treatment and a use method, and belongs to the technical field of landslide emergency treatment. The supporting structure comprises an anchor rod, a connecting mechanism is arranged on the anchor rod, the connecting mechanism comprises hollowed-out discs one, two and three which are fixedly sleeved on the anchor rod, the diameters of the hollowed-out discs one, two and three are sequentially reduced, a plurality of connecting rings are fixedly sleeved on the anchor rod, and grooves are arranged on the anchor rod corresponding to the connecting rings. The hollowed-out discs one, two and three and the connecting rings are fixedly sleeved on the anchor rod, the contact area of the anchor rod and the grouting body is increased through the hollowed-out discs one, two and three and the connecting rings, the connecting strength of the anchor rod and the grouting body is improved, the pull-out resistance of the anchor rod is increased, and therefore the support of the side slope is more stable and reliable.

The utility model relates to cloth dyeing technical field, and specifically is a dyeing drying integrated device, including dye vat, the rotatory connection of dye vat bottom has the pivot, the upper end fixed mounting of pivot has the basket, filter component sets up at one side of dye vat, filter component includes water tank, water tank outside surface fixed communication has the water inlet pipe, one end of water inlet pipe fixed communication has no. In the utility model, the cloth is rotated by the basket, the penetration speed of the dye is accelerated, the dye is filtered after dyeing, the lint in the dye is reduced, the basket is rapidly rotated, the dye is re-injected from the center of the cloth, the dye penetrates the cloth again under the action of centrifugal force, the dyeing uniformity of the cloth is improved, the dye in the cloth is rapidly discharged, hot air is passed in to dry the cloth, thereby the cloth can be directly dried after dyeing.

The application relates to the technical field of MBR membrane, in particular to an automatic cleaning system based on MBR membrane, which comprises a rack and a plurality of MBR membrane modules, the MBR membrane modules are arranged at intervals along the horizontal direction, the MBR membrane modules are detachable on the rack, the MBR membrane modules are used for filtering water quality, a cleaning assembly is arranged on the rack, the cleaning assembly comprises a driving cylinder, a sliding frame and a plurality of scraping rods, the driving cylinder is installed on the top of the rack, the sliding frame is installed on the end of a piston rod of the driving cylinder, the sliding frame slides along the vertical direction, the scraping rods are installed on the sliding frame and correspond to the positions of the MBR membrane modules, a scraping groove is arranged on the surface of the scraping rod, and the groove wall of the scraping groove is in abutting fit with the outer surface of the MBR membrane module; the application has the advantages that the influence of sludge backlog on the normal work of the MBR membrane is reduced.

This invention relates to the technical field of wastewater treatment, and more particularly to a wastewater treatment device for circuit board browning. It includes: a support frame; a sedimentation tank connected to the support frame; an electrolytic cell connected to the support frame; a control panel installed on the top of the electrolytic cell; a discharge frame connected to and maintaining communication with the side of the electrolytic cell; a first drive motor installed on the side of the electrolytic cell; and a rotating frame rotatably connected to the inside of the electrolytic cell, with the end of the rotating shaft of the rotating frame connected to the output shaft of the first drive motor. This invention, through the coordinated operation of the rotating frame, the first drive motor, the cleaning components, and the baffle mechanism, enables automatic cleaning of anode sludge during electrolysis. The periodic rotation of the rotating frame allows the cathode and anode plates to alternately enter the electrolyte or the cleaning station. The sponge plate, driven by the lifting frame, scrapes off the attached material, and the baffle guides the cleaned material out. No manual cleaning is required, significantly improving production continuity and processing efficiency.

This utility model discloses a spray device for degreasing electrophoretic parts, including a spray tank, a spray chamber fixedly installed on the top of the spray tank, a suspended conveyor chain installed inside the spray chamber, a spray assembly inside the spray tank, a guide plate fixedly installed inside the spray tank, a filter assembly inside the spray tank, a drive assembly on the left side of the spray tank, and a movable frame installed inside the spray tank via the drive assembly. A cleaning brush is fixedly installed at the bottom of the movable frame. This spray device for degreasing electrophoretic parts realizes the recycling of degreasing liquid, reduces waste of degreasing liquid, significantly reduces production costs, and can clean impurities in the middle of the filter assembly, preventing impurities from clogging the middle of the filter assembly, maintaining the permeability of the middle of the filter assembly, and improving the filtration speed.

This invention provides an acid-resistant horizontal seepage barrier structure using tailings sand as a substrate and its construction method. The seepage barrier structure, from bottom to top, includes an adsorption salt barrier layer, a condensation water barrier layer, and a capillary barrier layer. The condensation water barrier layer is composed of a mixture of tailings sand, silica sol, and tetraethyl orthosilicate. When the condensation water barrier layer is in an acidic environment, under H... + Under catalysis, the SiO2 precursor dehydrates and condenses to form a network-structured gel, which coats and connects the particles of tailings sand. The adsorption salt barrier layer is used to adsorb and block salts rising with capillary water in the soil beneath the seepage barrier structure. The condensation water barrier layer is the key layer for the seepage barrier structure to achieve its seepage prevention and water interception effect. The capillary barrier layer is used to impede some of the infiltrated water at the interface between the two soil layers above the seepage barrier structure. This invention utilizes industrial solid waste tailings sand, realizing the resource utilization of tailings sand. Its adaptability to strongly acidic environments makes it applicable to a wide range of scenarios.

The utility model relates to the technical field of chinlon production, in particular to a monomer suction device for a chinlon production line, which comprises a processing box, the left side of the processing box is communicated with a conveying pipe, the left side of the conveying pipe is communicated with a first processing box, and the left side of the first processing box is communicated with a second processing box. A discharging pipe is arranged on the left side of the second treatment box in a communicating mode, an activated carbon adsorption mechanism is arranged in the second treatment box and comprises an electric push rod, the electric push rod is fixedly connected to the inner wall of the second treatment box, and activated carbon particles are placed in the second treatment box and used for adsorbing harmful gas. Meanwhile, the turning plate is designed for turning the activated carbon particles, so that the activated carbon is prevented from caking due to long-time adsorption, the activated carbon always keeps good adsorption performance, the adsorption efficiency is further improved, monomer residues are reduced, the environmental pollution risk is reduced, and the purification effect on harmful gas is improved.

The utility model discloses a kind of green building construction wastewater recovery equipment, comprising: separation mechanism, including reaction tank, shunt box and lower intercommunication separation screen cylinder, the first rotating shaft is rotatably arranged in the reaction tank, stirring vane is installed on the rotating shaft outside, the inside of separation screen cylinder is rotatably arranged with spiral conveying blade, the spiral conveying blade is fixed on the output end of servo motor.The wastewater of the utility model is discharged into separation screen cylinder after preliminary treatment by reaction tank, large particle impurities are intercepted by screen cylinder, at this time, rotating spiral conveying blade will continuously push the impurities in screen cylinder inner wall and bottom to one end, finally automatically discharged through deslagging pipe, fall into the impurity collection box below, simultaneously, treated clean water passes through screen cylinder and flows into wastewater collection box below, and then without manual intervention, greatly reduce human burden, significantly improve cleaning efficiency, ensure that equipment continues stable operation.

This invention provides a method for preparing coated notebook paper, comprising the following steps: S1, preparing base paper; S2, coating the surface of the base paper to form a coating layer, the coating layer comprising pigments and adhesives, wherein the adhesives comprise polyvinyl alcohol and enzyme-converted starch, comprising 100-110 parts by weight of pigment, 3-5 parts by weight of polyvinyl alcohol, and 10-14 parts by weight of enzyme-converted starch; S3, subjecting the base paper treated in step S2 to a second drying, calendering, and winding process to obtain the coated notebook paper. This application also provides coated notebook paper prepared by the above method. The coated notebook paper prepared by the method provided in this application has a fine surface, smooth writing, minimal pen wear, minimal ink bleeding, and rapid drying. It also possesses good coating strength and anti-bleed-through properties, making it particularly suitable as high-grade notebook paper.

This invention relates to the field of industrial wastewater treatment technology and discloses a filter press for industrial wastewater treatment with a backwashing function. The filter press includes a filter sleeve, a hollow shaft rotatably mounted inside the filter sleeve, a central feed pipe fixedly connected to the top of the hollow shaft, several water distribution pipes circumferentially arranged at the lower part of the hollow shaft, and an annular filter bag concentrically arranged outside the hollow shaft. A liquid collection chamber is provided between the annular filter bag and the inner wall of the filter sleeve. This invention utilizes an adaptive mechanism of "increased filtration resistance → increased liquid level" to convert resistance into hydrostatic squeezing power, significantly improving the dewatering effect. It achieves self-driven backwashing by accumulating filtrate and completes deep cleaning by forming a cross-flow field through bidirectional inclined nozzles. This design realizes automatic switching of the entire process from filtration and pressing to cleaning, reducing energy consumption while extending the service life of the filter bags and ensuring continuous and stable wastewater treatment efficiency.

The application discloses a kind of hydroprocessing catalyst and its preparation method and application.The method comprises the following steps: the alumina-based carrier is oversaturated and impregnated in the impregnation solution containing dopamine, protective agent and hydrogenation active metal, the pH value of system is adjusted, so that dopamine is self-polymerized on the pore channel surface of alumina-based carrier, then washed, dried, pre-carbon deposition, calcination, to obtain a hydroprocessing catalyst.The hydrogenation catalyst prepared by the method of the application is obviously improved in desulfurization and denitrification activity and stability.

This utility model discloses a device for monitoring steel reinforcement corrosion in structures and a structure thereof. The device includes a steel reinforcement segment, at least one set of sensing optical fibers tightly wound around the steel reinforcement segment, a first transmission optical fiber and a second transmission optical fiber connected to both ends of the sensing optical fibers, and a cement mortar protective layer covering the steel reinforcement segment and the sensing optical fibers. The first and second transmission optical fibers respectively extend through the cement mortar protective layer. This utility model winds the sensing optical fibers around the steel reinforcement segment, eliminating the need for additional drilling or damage to the concrete. The cement mortar serves as the outer protective layer, ensuring the penetration of corrosive media while also constraining the transmission of rust expansion force, thereby ensuring that the monitoring device has the same lifespan as the structural steel reinforcement and achieving high-precision, long-term monitoring of the steel reinforcement corrosion status of structures.

This utility model relates to the field of landslide monitoring and early warning technology, and discloses a multi-layer sliding surface landslide monitoring and early warning device. The device includes a base with a through-hole at the center of the top of the base, a bracket installed on the top, and a fixed column fixedly connected to the top of the bracket. A multi-layer sliding monitoring mechanism is provided on the surface of the base and the bracket. An automatic tracking power supply mechanism is provided on the top of the fixed column, and an audible and visual alarm mechanism is provided on the surface. The monitoring mechanism drives the drill rod to drill into the soil through a hydraulic cylinder. It uses fiber optic displacement sensors, acceleration sensors, and soil moisture sensors to monitor the landslide status from multiple dimensions. A honeycomb permeable protective cover and other structures ensure the stable operation of the sensors. The automatic tracking power supply mechanism adjusts the orientation of the solar panel through a photosensitive sensor and a servo control motor to improve charging efficiency. The audible and visual alarm mechanism emits audible and visual signals when the monitoring data reaches the early warning threshold. This device can realize real-time monitoring of multi-layer sliding surfaces, has a long-lasting power supply, and provides timely early warning, making it suitable for field landslide monitoring.

The invention belongs to the technical field of electrochemical energy storage, and relates to a positive and negative differential integrated electrode for a static filmless zinc-bromine battery and a battery stack. The electrode comprises a flexible graphite composite bipolar plate, one side of the flexible graphite composite bipolar plate is compounded with a non-conductive negative electrode thin pre-oxidized felt subjected to oleophobic modification, the other side of the flexible graphite composite bipolar plate is compounded with a positive electrode thick activated graphite felt which has a gradient pore structure and is loaded with a bromine oxidation reduction catalyst, the contact side of the bipolar plate and the negative electrode felt is activated, and the three layers are compounded into an integrated structure. The stack is horizontally placed, positive and negative electrode felts of adjacent electrodes are directly attached and compressed, no diaphragm exists, and the compression ratio is controlled by a limiting column. Three-dimensional uniform deposition of zinc is guided through the negative electrode non-conductive felt, the bromine oil phase is locked through cooperation of positive electrode gradient pores and gravity settling, the contact resistance is reduced through the integrated structure, non-film static operation is achieved, the cycle life exceeds 500 times, the self-discharge rate is lower than 0.45%, the energy efficiency is higher than 80%, the structure is simplified, and the lithium ion battery is suitable for large-scale production.