82results about How to "Fast filtering effect" patented technology

The present invention is the preparation process of composite inorganic flame retardant with nanometer attapulgite clay core and coating of Mg, Al, Sb, etc. The preparation process of the composite inorganic flame retardant includes the following steps: compounding water suspension of nanometer attapulgite clay with solid content of 10-200g / L; heating to 40-100 deg.c and coating the nanometer attapulgite clay with inorganic material Al2O3 hydrate, MgO hydrate, antimony oxide hydrate, ZnO hydrate and / or zinc borate via stirring; letting stand for the coated nanometer attapulgite clay to deposit; solid-liquid separation; filtering, washing, drying at 80-150 deg.c and crushing to obtain the composite inorganic flame retardant. The composite inorganic flame retardant of nanometer attapulgite clay has both flame retarding and excellent reinforcing effects.

The invention relates to a multi-level mixed three-dimensional space index method which comprises the following steps: 1, building a united three-dimensional space index framework; 2, dividing a large-scale city space into a plurality of small regions, and building a first level grid index; 3, in the first level grid index region, building a second level multi-type mixing index for three-dimensional space data with different types; and 4, based on the multi-level mixed three-dimensional space index, carrying out multi-level query search on a three-dimensional space database. The three-dimensional space index method improves the searching efficiency of the large-scale three-dimensional space database through multi-level filter and search.

The invention relates to filtering equipment, in particular to filtering equipment for rainwater collection. The invention aims to solve the technical problem of providing the filtering equipment for rainwater collection which is novel in structure, convenient to use and capable of filtering rainwater. To solve the technical problem, the invention provides the filtering equipment for rainwater collection, comprising a base plate, first support rods, second support rods, a water collection tank, a filtering device, a first pipeline, a first one-way valve, a water delivery device, a second one-way valve, a second pipeline and the like; and the first support rods are symmetrically welded to the left side of the top of the base plate, the water collection tank is welded to the upper ends of the first support rods, a water collection cover is welded to the top end of the water collection tank, and a filter net is welded to the top in the water collection cover. A first motor is controlled to rotate, the first motor drives a second gear to rotate through a first gear, finally a filter net cover is made to rotate, and the rotation of the filter net cover can make active sand in sufficient contact with rainwater.

The invention provides a filtering sewage intercepting basket of a gutter inlet. The filtering intercepting basket comprises a basket body and a filtering net basket arranged on the lower portion of the basket body and matched with the basket body, overflow openings are formed in the basket body, and a connecting part is arranged on the upper portion of the basket body and connected with a rainwater well. The filtering sewage intercepting basket of the gutter inlet is economical and practical, changing is convenient, and the sewage cleaning effect is good; a form of a geotechnical cloth bag is adopted as a filtering material in the filter net basket, the filtering material is not prone to be polluted, and only the outer side of geotechnical cloth needs to be cleaned, so that fast filtering and sewage intercepting of rainwater are promoted; through arrangement of the overflow openings, the drainage capability cannot be lowered due to debris blocking.

The present invention discloses a dust filtration system of gas mixture of high temperature oil gas, water vapor and precipitation-prone carbides, which comprises a closed separation chamber connecting intake duct and exhaust duct. The closed separation chamber comprises a filter mechanism inside, the outer surface of the filter mechanism connects to the intake duct and the inner surface connects to the exhaust duct, and the dust filtration system comprises a filter regeneration mechanism. The present invention includes a filter regeneration mechanism set in the closed separation chamber connecting intake duct and exhaust duct, which can recover the filtering capacity greatly decreased due to the adhesion of tar and ash to the filter surface and pores. The repeated regeneration directly reduces the cost of filter and greatly improves its service life.

The invention provides an aztreonam anhydrous crystal compound. An X-ray diffractive map comprises the following X-ray diffractive peaks: 18.2 degrees + / - 0.2 degree, 24.0degrees + / - 0.2 degree, 9.1 degrees + / - 0.2 degree, 4.1 degrees + / - 0.2 degree and 17.2 degrees + / - 0.2 degree disclosed by 2 theta angles. The invention also provides a method for preparing the aztreonam anhydrous crystal compound. The aztreonam anhydrous crystal compound has a sharp outline, can be perfectly reappeared, has powder flowbility, intrinsic dissolution rate, solid stability, and the like which are obviously better than that of the traditional aztreonam crystal compound and can be prepared into a medical composition for treating various types of infection caused by sensitive oxybiontic gram-negative bacteria.

The invention discloses a catch basin for rainwater interception and utilization. The catch basin comprises a rainwater interception device and a rainwater collecting and utilizing system. The rainwater interception device is arranged in a rainwater removal well and internally provided with a filter layer, a remover is fixed below the filter layer, and a connection pipeline connected with the rainwater collecting and utilizing system is arranged on the upper portion of the rainwater interception device. The top of the rainwater collecting and utilizing system is provided with an infiltration layer connected with the connection pipeline, and an infiltration well is arranged below a supporting portion which is fixed below the infiltration layer. The catch basin for rainwater interception andutilization has advantages that by the rainwater removal well, initial rainwater is discharged to the municipal pipe network, later rainwater enters the rainwater collecting and utilizing system to be collected, purified and utilized, and high rainwater comprehensive utilization rate and low construction cost are realized.

The invention discloses a filter device for valves, which relates to the technical field of valve appliances; the water inlet of the housing is connected with a water inlet connection threaded pipe, and the water outlet of the housing is connected with a water outlet connection flange, so The inside of the casing is installed with a first filter net and a second filter net obliquely, and the front sides of the first filter net and the second filter net are all provided with a sewage pipe, and the sewage pipe is installed at the lower end of the housing. , a sewage valve is installed on the sewage pipe, and the installation threaded head is arranged on the outside of the two sewage valves, and the installation threaded head is connected with the bottom of the housing, and the installation threaded head is connected with a sewage collection cylinder through threads, so The inner bottom of the sewage collection cylinder is inclined to install a sewage collection plate, and the lowest point of the sewage collection plate is provided with a sewage valve; the invention is convenient for rapid filtration and sewage collection, and is easy to operate, convenient for sewage discharge, and high in efficiency.

The invention discloses a preparation method of hydroxychloroquine sulfate. The preparation method is characterized by comprising the following steps: condensing 4,7-dichloroquinoline serving as an initial raw material and a hydroxychloroquine side chain under the action of a catalyst, so as to obtain hydroxychloroquine; and reacting hydroxychloroquine with sulfuric acid, so as to prepare the hydroxychloroquine sulfate. According to the method disclosed by the invention, the defects in the prior art are overcome. The method has the advantages that the yield of the prepared hydroxychloroquine sulfate crude product is greater than or equal to 85%, the yield of hydroxychloroquine sulfate is greater than or equal to 94%; the total yield is greater than or equal to 80%; the purity of the prepared hydroxychloroquine sulfate HPLC is greater than or equal to 99.6%; the maximum single impurity is smaller than 0.1%; the method accords with the requirements of United States pharmacopeia, is short in reaction step, and simple in the whole technological operation; and the obtained product is high in quality, high in yield, and relatively suitable for industrial production.

The invention provides a ventilation device with a rapid gas exchange function for a mobile toilet. A toilet body is involved, the top of the toilet body is fixedly connected with a top plate, the left side of the front face of the toilet body is movably connected with a movable door through a hinge, and the top of the right side of the toilet body is fixedly connected with a fixed box. Through the cooperation of an air suction mechanism, a purification mechanism and a first air pump, a user can conveniently mix fresh air and turbid gas to reduce the concentration of the turbid gas, then a filter cotton plate, an activated carbon filter screen and an HEPA filter screen quickly filter and adsorb dust and harmful gas in the diluted turbid gas, and at the moment, the first air pump quickly transmits the purified gas back to the toilet body, so that a user can rapidly replace turbid gas in the toilet body, and the problems that a traditional ventilation device for the mobile toilet cannotrapidly exchange gas and cannot purify the replaced turbid gas are solved.

The invention relates to the technical field of radial drilling machines, in particular to a radial drilling machine for high-precision stamping die processing. The radial drilling machine comprises adrilling machine body and a liquid storage box, wherein the liquid storage tank is arranged on the rear side of the drilling machine body; the drilling machine body comprises a base, a column, a rocker arm and a drilling box, wherein the column is fixedly welded to the upper surface of the base; a sliding cylinder connected to the column in a sleeved mode is arranged on the rear end of the rockerarm; a top block is rotatably arranged on the upper end of the column; a rocker arm lifting mechanism connected to the rocker arm is arranged on the top block; the drilling box is arranged on the front side face of the rocker arm; a horizontal adjusting mechanism of the drilling box is arranged on the rocker arm; and a PLC and a frequency converter are arranged on the drilling machine body. According to the radial drilling machine, the pressing force in a drilling process is converted into a digital signal to be conveyed to the PLC through a pressure sensor, the PLC controls the output frequency of the frequency converter according to a set program, the real-time control of a variable frequency motor and a water pump is achieved, the waste of the cooling liquid in the die drilling processis greatly reduced, and the processing cost of the die drilling is effectively reduced.

The invention discloses an electric welding machine with an environmental protection function for building construction. The electric welding machine comprises a shock absorption base, a shock absorption groove is formed in the top of the shock absorption base, a shock absorption plate is slidably connected between both sides of the inner wall of the shock absorption groove, and a chassis is fixedly connected to the top of the shock absorption plate. A mounting plate is fixedly connected between both sides of the inner wall of the chassis, a mounting block is fixedly connected to the bottom ofthe inner wall of the chassis, a filter block is fixedly connected to the top of the mounting block, and a filter tank is formed in the top of the filter block. The invention relates to the technicalfield of construction welding facilities. The electric welding machine with the environmental protection function for building construction solves the problem that the electric welding machine does not have the function of environmental protection and prevents welding fume from drifting in the air to cause serious damage to the physical health of construction workers. The rapid absorption, filtration and purification treatment of the welding fume produced by welding are achieved and the welding operations of the construction workers are greatly facilitated.

The invention provides an industrial wastewater treatment type biochemical precipitation device. The industrial wastewater treatment type biochemical precipitation device comprises a sealing mechanism, a sedimentation tank and a supporting mechanism, wherein the sedimentation tank is mounted at the lower end of the sealing mechanism; the supporting mechanism is assembled at the lower end of the sedimentation tank; the sealing mechanism comprises a sealing cover, a left baffle plate, a retractable hose, a cavity, a filtering screen, a right baffle plate, a guide rod, a screw rod and a motor; the supporting mechanism comprises thread rods, springs I, fixed plates, retractable plates, movable wheels, a supporting plate, springs II and a connecting plate. Compared with the prior art, the industrial wastewater treatment type biochemical precipitation device provided by the invention has the following beneficial effects that a sealing function is realized and sediment is also convenient to rapidly filter and aggregate; the precipitation time is short and the sediment is also convenient to take out rapidly; the device is also convenient to move.

The invention relates to the food oil preparation technology field, and concretely provides a filtering and sterilization device for sesame oil after cold pressing. The filtering and sterilization device comprises a first-grade filtering device, a second-grade filtering device, an oil collection plate, an oil transportation groove, a bactericidal lamp and a fixed shell. The first-grade filtering device is used for filtering particle with large diameters in the pressed oil. The second-grade filtering device is used for filtering residual particles in the pressed oil after filtering the No.1 filter funnel. The fixed shell is cylindrical. A through hole is arranged in the bottom of the side wall of the fixed shell. The oil collection plate is placed in the cavity of the fixed shell in an inclined manner. An oil leakage hole is arranged at the lowest position of the oil collection plate. The oil transportation groove with a U-shaped cross section is distributed on the side wall of the inner cavity of the fixed shell in a spiral manner. The top of the oil transportation groove is arranged directly under the oil leakage hole in the oil collection plate, and the bottom of the oil transportation groove is fixed at a through hole at the bottom of the fixed shell. The filtering and sterilization device can achieve filtering and rapid sterilization of the pressed sesame oil, operation is simple and fast, and damage of excess mycin such as aspergillus flavus or the like in food oil to people is avoided.

The invention discloses a real-time malicious webpage identification method on a gateway, which comprises the following steps of: acquiring the traffic of accessing a webpage by a user, and extractinglightweight malicious webpage classification characteristics from the traffic; constructing a real-time malicious webpage classification model based on the classification features; and deploying themodel to core network equipment to predict whether the webpage is a malicious webpage or not in real time. The invention further discloses a system for identifying the real-time malicious webpage on the gateway. The system comprises a flow acquisition module, a classification model training module and a prediction module. Based on the obvious inclined distribution of the malicious web pages on thecharacteristics, the destination IP address and the source IP address are processed by adopting a point division decimal system, i.e., each IP address byte is used as a classification characteristic,so that the malicious web pages can be quickly identified and filtered on a large gateway in real time.

Provided is an improvement method of a preparation technique of 3-(2,2,2-trimethylhydrazine) propionate dihydrate. The 3-(2,2,2-trimethylhydrazine) propionate dihydrate is a drug for a cardiovasculardisease and is a product after basic hydrolysis and acidification of an intermediate 3-(2,2,2-trimethylhydrazine) methyl propionate salt (CH3)3N<+>NHCH2CH2COOCH3X<-> (wherein X represents Cl<->, Br<->, I<-> and CH3SO4<->). Due to the fact that the acidification purification process adopted after hydrolysis is complicated, no better process for solving the problem has been provided so far. According to the method, mixed liquor for acidification is added before and after acidification, the complex (emulsible) or double salt of 3-(2,2,2-trimethylhydrazine) propionate dihydrate is not produced, and the steps of electrodialysis, separation and purification are omitted. Besides, another novel acid agent is added, a high-purity product can be further obtained, and the advantages of commercial scale production, cost reduction, simple equipment and the like are achieved.

The invention discloses a non-ferrous metal smelting circulating water filter pressing device, and relates to the field of non-ferrous metals, the non-ferrous metal smelting circulating water filter pressing device comprises a base, a main body is arranged at the middle position of the top of the base, the top end of the interior of the main body is rotatably connected with a rotating bin, the interior of the rotating bin is slidably connected with a pressing column, and the bottom of the pressing column is provided with a clamping head; a filter plate is arranged in the main body, a mounting frame is rotatably connected to the outer side of the filter plate, and a rotary button is arranged on one side of the mounting frame. By arranging a floating ball, when impurities block a filter plate, water entering is affected, water is gradually increased, the floating ball moves upwards under buoyancy, a pressing column is driven to move downwards under the action of a telescopic column in cooperation with the lever principle, a clamping head enters a clamping groove block, and at the moment, a rotating motor is started to drive second conical teeth to rotate; and the rotating bin drives the filter plate to rotate, so that impurities at the top of the filter plate rotate, and water can pass through conveniently.

Disclosed are a replay transaction identification method and device based on a blockchain all-in-one machine. The blockchain all-in-one machine includes a CPU and a smart network card. The smart network card is a network card with a built-in processor or microprocessor, which can perform data calculation and processing. The smart network card can replace the CPU for replay transaction identification.

The invention relates to a photovoltaic power generation device based on the Internet of Things with rain prevention and cleaning functions. The device comprises a casing, a lifting mechanism, a rainproof mechanism, a water collecting mechanism and a cleaning mechanism. The rainproof mechanism comprises a second motor, a screw and two moving units. The cleaning mechanism includes a third motor, arotating rod, a sliding sleeve, a cleaning rod, a fixed shaft and a nozzle. According to the device, the height of the solar panel is accurately adjusted by the lifting mechanism, through the cooperation of the rainproof mechanism and the water collecting mechanism, the corrosion of the whole device by acid rain is reduced, the rainwater is quickly collected and initially filtered, the service life of the whole device is prolonged, water resources are saved, the practicability is improved, the dust accumulated on the surface of the solar panel is washed through the cleaning mechanism to keep the solar panel clean, the power generation efficiency is improved, and the practicality is improved.

The invention provides a filter bank for temperature increase and decrease segmentation interception of extract. Filter bank comprises a refrigerating system Q1, a liquid inlet system, a cooling circulating system, a heat storage circulating system, a heat energy circulating system, a heating medium circulating system, a refrigerant circulating system, a circulating temperature system, a filteringsystem, a circulating flow cutting system A, a circulating flow cutting system B, a filtering type interceptor C5 temperature supplementation system, a filtering type interceptor C3 temperature supplementation system, a circulating temperature supplementation system A and a circulating temperature supplementation system B. The filter bank adopts a scientific technology, is simple and practical, and realizes temperature increase and decrease extraction, rapid cleaning and continuous filtration.

The invention relates to the field of manure treatment machinery, in particular to a manure dehydrator. The manure dehydrator comprises a dehydrator body, wherein a filter cavity is formed in the rear end of the dehydrator body, a blow-off pipe is arranged at the lower end of the filter cavity, an overflow groove is formed in the upper end of the filter cavity, a feeding pipe is arranged at the lower end of the overflow groove, the upper edge of the overflow groove is connected with a filter net, the lower end of the filter net communicates with a feeding port of a dehydration chamber, a motor fixedly arranged at one end of the dehydration chamber is connected with a screw rotating shaft through a speed reducer, a liquid discharging port is formed in the lower part of the other end of the dehydration chamber, a manure discharging outlet is formed in the rear part of the other end of the dehydration chamber, and a bearing block is fixedly arranged on one side of the manure discharging outlet. The manure dehydrator can quickly filter and dehydrate manure and is high in filter efficiency, and the filter net cannot be blocked easily.

The invention relates to recycling equipment, in particular to a rainwater recycling device which is novel in structure, convenient to use and capable of filtering rainwater. The rainwater recycling device comprises a left frame, a bottom plate, a right frame, first fixing rods, a water collection tank, a filtering device, a water delivery device, a first one-way valve, a first pipeline, a secondfixing rod and a second one-way valve, the left frame is welded on the left side of the top of the bottom plate, the first fixing rods are welded on the right side of the left frame in up-down symmetry, and the water collection tank is welded at the right ends of the first fixing rods. By controlling a first electric push rod to extend and contract, the first electric push rod drives a gear to rotate through a rack to finally enable a net cover to rotate, and the net cover rotates to enable active sand to sufficiently contact with rainwater.

The invention provides a low-temperature multistage filter flow cutting device. The device comprises a refrigerating system Q1, a liquid inlet system, a cooling circulation system, a refrigerant circulation system, a cooling system, a filtration system, an A circulating flow cutting system, a B circulating flow cutting system and a C circulating flow cutting system. The low-temperature multistagefilter flow cutting device has the advantages that the work efficiency is improved, the production cost is reduced, the process accords with the science, the operation is simple and practical, a freezing filtration system with a filtration aiding medium is abandoned, the mineral resources are saved, and the cleanness and environmental protection are achieved.

The invention discloses a structure of an anti-blocking drainage facility of a retaining wall. The structure comprises a retaining wall body, wherein a plurality of groups of drainage holes which are inclined downwards are formed in the retaining wall body; one end, close to one side of the retaining wall body, of each drainage hole is fixedly connected with a limiting base; a drainage tube is mounted inside each drainage hole; one end, close to the limiting base, of each drainage tube is fixedly equipped with a limiting ring in a sleeving mode; one end, away from the limiting ring, of each drainage tube is equipped with a mounting ring in the sleeving mode; the outer sides of the limiting rings and the mounting rings are fixedly equipped with gas-filling rings in the sleeving mode; one end, close to one side of the retaining wall body, of each drainage tube is equipped with a connecting flange; one side of each connecting flange is connected with a connecting ring; one side of each connecting ring is fixedly connected with a supporting net; and the outer side of each supporting net is equipped with a permeation filter screen in the sleeving mode. The anti-blocking drainage structure of the retaining wall is simple and reasonable in structure, is novel in design, is good in anti-blocking effect, is simple and convenient to dismount, is relatively low in maintenance cost, has a relatively high practical value, and is convenient for being widely popularized and used.

The invention discloses a mixing device convenient for filtering and relates to the technical field of automation. A mixing motor is arranged at the middle part of the upper end of a tank body; a plurality of liquid inlet pipes are separately arranged at the upper end of the tank body; a rotating shaft of the mixing motor is connected with the upper end of a main shaft through a shaft sleeve; a plurality of transverse mixing rods are arranged on the outer side wall of the main shaft; a plurality of longitudinal mixing rods are arranged at the lower ends of the transverse mixing rods; a filterscreen is obliquely arranged on the inner lower side of the tank body; a blowoff valve is arranged at the lowest point of the filter screen; a liquid collecting plate is arranged at the bottom of thetank body; a liquid draining valve is arranged on the lower side of the liquid collecting plate; and an motor heating mechanism is arranged on the inner side wall of the tank body. The mixing device disclosed by the invention has the advantages that rapid mixing, liquid collection and filtration are conveniently realized; simplicity and convenience in operation are realized; and the efficiency canbe improved, and the time is saved.

The invention provides a heavy metal recovering device for industrial wastewater. The heavy metal recovering device comprises a filtering mechanism, a treatment box and a supporting mechanism, whereinthe filtering mechanism is arranged on the treatment box; the supporting mechanism is arranged at the lower end of the treatment box; the filtering mechanism comprises a motor, a screw I, a filter screen I, a rubber bar, a 45-degree connector, a fixed column, a U-shaped guide groove, an electromagnet, an iron ingot, a guide rod and a push plate; the supporting mechanism comprises a holding box, an electric motor, a base plate, a bottom plate, a connecting plate, a screw II, an L-shaped supporting plate, a sliding rod, a connecting ring, a threaded rod and a filter screen II. Compared with theprior art, the heavy metal recovering device provided by the invention has the following beneficial effects that the functions of quickly filtering and taking out are realized, a secondary filteringfunction is also realized and the supporting effect is improved.

The invention provides a method for filtering flow-cut attachments. The filter surface of the filter plate is impacted by the flow rate of the liquid, and the impact is separated from the attachments intercepted by filtering on the filter surface, and then circulated through the circulation interception system. The mixed liquid with the attachments circulates and intercepts the attachments into the interceptor, realizing the detachment of the filter surface from the attachments. The invention is scientific and reasonable, simple, practical and efficient, and realizes rapid cleaning and continuous filtration.

The invention provides a freezing and filtering device which comprises a refrigerating system Q1, a liquid inlet system, a cooling circulation system, a refrigerant circulating system, a cooling system, a filtering system, a circulation flow cutting system, a filtering type intercepting machine C3 temperature supplementing system and a circulating temperature supplementing system, the technology disclosed by the invention is scientific in process, the operation is simple, a freezing and filtering system with a filter aid medium is avoided, mineral resources are saved, and the freezing and filtering device is clean and environment-friendly.

The invention provides a cold and heat dual-filtration system. The system includes a refrigeration system Q1, a liquid inlet system, a cooling cycle system, a refrigerant cycle system, a cooling system, a filtering system, a circulating flow cutting system A, a circulating flow cutting system B, a filtering interceptor C3 temperature compensation system, a circulating temperature compensation system, an intake system A, a heat medium circulation system, a heat energy circulation system, a heating cycle system, a filtering system A, a circulating flow cutting system AA, a circulating flow cutting system BB, a filtering interceptor C3 temperature compensation system and a circulating temperature compensation system A. The system has the advantages that the technology is scientific and practical, the system has cold and hot filtering functions, fast cleaning and continuous filtering can be achieved, the system can replace a freezing and filtering system with filter aids, mineral resourcesare saved and the system is clean and environmentally friendly.