20 results about "Büchner funnel" patented technology

The utility model relates to a water-soluble hexavalent chromium filtering and collecting device, which belongs to the field of laboratory collection, and comprises a Buchner funnel (1) and a tray (2), the Buchner funnel (1) comprises a funnel opening (3) and a funnel neck (4), the funnel neck (4) is arranged at the bottom of the funnel opening (3), the funnel neck (4) is connected with the tray (2), the Buchner funnel (1) is taken out, and a beaker (11) filled with filtrate is taken out at the same time. The Buchner funnel (1) is provided with a suction filtration bottle (5), the suction filtration bottle (5) is provided with an extraction opening (6), the extraction opening (6) is connected with an extraction pipe (7), the extraction pipe (7) is connected with the suction filtration bottle (5), and the suction filtration bottle (5) is connected with the suction filtration bottle (5). The exhaust pipe (7) is connected with a vacuum pump (8), so that the filtering effect is improved, and the filtering is faster.

This invention discloses a device for preventing mud spillage during fine mineral filtration, relating to the field of mineral processing and solid-liquid separation equipment. It includes: a Buchner funnel, a filtration flask, a collection cylinder, an anti-backflow bottle, and a vacuum pump. The Buchner funnel is connected to the filtration flask, and the filtration flask's exhaust port is sequentially connected to the collection cylinder, the anti-backflow bottle, and the vacuum pump via pipelines. The collection cylinder includes a shell, a flow guide, a filter assembly, a collection chamber, and an end cap. The shell has an inlet and an outlet on both sides. The inlet is connected to the exhaust port of the filtration flask via a pipeline, and the outlet is connected to the anti-backflow bottle via a pipeline. The flow guide is located on the inlet side of the shell, and the filter assembly is located inside the shell. This invention uses the flow guide to rectify the airflow to protect the filter surface, and the filter assembly to intercept fine particles, preventing them from entering subsequent equipment. The removable end cap allows for quick and complete removal of the filter assembly, improving collection efficiency while simplifying maintenance.

The invention discloses a catalytic filter material with a low-temperature CO oxidation function and a preparation method thereof.A carbon-loaded metal oxide material serves as a core of low-temperature CO oxidation catalysis, CO in flue gas is removed while dust is removed, and the temperature of the flue gas is increased. The preparation method comprises the following steps: adding 0.1-10wt% of nitrate of active metal into 100mL of deionized water to obtain a metal precursor solution; 2, dilute ammonia water is dripped into the metal precursor solution obtained in the step 1, full stirring and precipitation are conducted, the pH value is controlled to be 7-9, and a precipitate is obtained; 3, taking a carbon material as a matrix, adding the matrix into the precipitate obtained in the step 2, and carrying out ultrasonic treatment to obtain a mixture; 4, taking a polymer filter material, cutting the polymer filter material into slices, placing the slices at the bottom of a Buchner funnel, and pouring the mixture in the step 3 into the Buchner funnel for suction filtration to obtain a filter material; and 5, baking the filter material obtained in the step 4 in a baking oven to obtain the carbon-loaded metal oxide functional filter material.

To provide a washing machine capable of simply and efficiently washing powder and granular material such as nickel powder or slurry thereof with a small work load.SOLUTION: A filtering and washing machine for powder and granular material represented by nickel powder suitably having a mean particle size of 200nm or less produced by a liquid phase method or a slurry thereof includes a Buchner funnel 1, a positive displacement pump 4 suitably including a reciprocating pump such as a diaphragm pump connected to an extraction nozzle of the Buchner funnel 1 via a pipe 3, and a flexible hose 5 represented by a blade hose connected to a discharge side of the positive displacement pump 4, and is preferably mounted on a truck 6.SELECTED DRAWING: Figure 1

The utility model discloses a laboratory sample combined filtering device which comprises a Buchner funnel and a sand core suction filter which are distributed up and down. According to the utility model, the ceramic Buchner funnel and the sand core suction filter are integrated in one device, so that the integrated operation of rough filtration and fine filtration is realized, the experimental process is simplified, and the operation efficiency is improved; the integrated device reduces the dependence of a laboratory on a plurality of independent filtering devices, and reduces the equipment purchase and maintenance cost; the filtering process is completed in the same device, so that the loss and pollution risk of the sample in the transfer process are reduced, and the reliability of an experimental result is improved; the device can flexibly adjust the filtration precision of rough filtration and fine filtration according to the requirements of different samples, and is suitable for various experimental scenes.

The utility model discloses a suction filtration device capable of detecting gold, which comprises a filtrate tank, an adsorption column mounted on the filtrate tank, an air suction hole formed in the filtrate tank, a first rubber plug mounted between the filtrate tank and the adsorption column, a filter plate mounted in the adsorption column, and a second rubber plug mounted on the adsorption column. The second rubber plug is used for being connected with a Buchner funnel, a micro spectrometer is installed on the side face of the adsorption column, the filter plate is installed on the inner wall of the adsorption column in a sliding mode, a fixing ring and a fixing clamp are fixedly installed on the outer side of the adsorption column, the fixing clamp is made of an elastic plastic material, and a push handle is installed in the fixing clamp in a clamped mode. A rubber head is installed at the top of the push handle, the push handle is taken out of the fixing clamp, stretches into the bottom of the adsorption column and pushes the filter plate outwards to drive the mixture to move outwards, the mode that a glass rod is used for taking out the mixture in the adsorption column is replaced, operation of workers is facilitated, and the working efficiency is improved.

The utility model belongs to the technical field of 5-hydroxy-1-methyl-3-trifluoromethyl-1H-pyrazole preparation, and particularly relates to a pyrazole compound suction filtration device which comprises a Buchner funnel, a suction filtration box, a liquid collection box and a vacuum assembly, the Buchner funnel is connected to the suction filtration box, the vacuum assembly comprises a first guide pipe and a second guide pipe, and the first guide pipe is connected with the liquid collection box. One end of the first guide pipe is connected with the top of the suction filtration box, and the other end of the first guide pipe is connected with the top of the liquid collection box; a third guide pipe is further arranged at the position, close to the top, of the liquid collecting box and connected with a power device. Compared with the prior art, the device disclosed by the utility model can be used for amplifying production and realizing continuous suction filtration, and meanwhile, the stability of the device in an operation process is improved.

The invention provides a purification system of a breakdown test device, a control method and the breakdown test device. The purification system comprises a Buchner funnel, a closed container and a vacuum pump. Wherein the upper end of the Buchner funnel is hermetically communicated with an insulating oil pool of the breakdown test device, laminated qualitative filter paper with micron-sized aperture is arranged in the Buchner funnel, the closed container is respectively communicated with the lower end of the Buchner funnel and the insulating oil pool, the vacuum pump is communicated with the closed container, and the vacuum pump is used for exhausting air from the closed container. Therefore, the insulating oil is respectively subjected to impurity filtration and water removal treatment under the action of negative pressure. Through the arrangement, under the action of negative pressure, on one hand, the circulation rate of the insulating oil passing through the qualitative filter paper can be increased, rapid filtering of micron-sized carbonized particles in the insulating oil is achieved, on the other hand, water in the damped insulating oil can be rapidly separated out through the action of negative pressure, and the purification efficiency is overall improved; and the purity and dielectric stability of the filtered insulating oil are enhanced.

The invention provides a pretreatment method for determining soil exchangeable salt composition, and relates to the technical field of soil detection, and the pretreatment method comprises the following steps: placing a weighed sample in a conical flask, adding ammonium acetate, shaking uniformly, and standing for one night; performing suction filtration by using suction filtration equipment, connecting a suction filtration flask to a suction filtration main pipeline, putting a Buchner funnel with a rubber plug on the suction filtration flask, and then putting filter paper into the Buchner funnel; pouring supernatant on the upper layer in the conical flask into a Buchner funnel with filter paper through conveying equipment; the interior of the conical flask is washed with ammonium acetate, so that all soil in the conical flask is transferred into the Buchner funnel; washing the soil sample in the Buchner funnel by using a washing bottle filled with ammonium acetate; according to the invention, the reaction of the sample is more complete, and the exchange is more thorough; the pretreatment efficiency is greatly improved, the loss of the glass rod with the rubber head is avoided, the blockage probability of an instrument is reduced, and the suction filtration speed in the early stage is higher.

The utility model discloses a filtering device for replacing a Buchner funnel and a suction flask in a laboratory, which belongs to the technical field of vacuum suction filtration and comprises a first Buchner funnel and a suction flask arranged below the first Buchner funnel, and the first Buchner funnel and the suction flask are of an integral structure; a funnel cover plate is arranged at an opening in the top of the first Buchner funnel, a second Buchner funnel is arranged above a bushing of the first Buchner funnel, a U-shaped pipe is connected to one side of the suction flask, a vacuum connector is formed in the top of the side wall of the suction flask, connecting pipes are connected to the two ends of the U-shaped pipe, and the two ends of the U-shaped pipe are connected with a vacuum pump. And the connecting pipe close to one side of the suction flask is connected with the vacuum connecting port. According to the filtering device capable of replacing the laboratory Buchner funnel and the suction flask with the structure, the filtering device of the first Buchner funnel and the suction flask which are integrally designed and made of the PP material is corrosion-resistant and not easy to break, and the whole filtering device can be directly cleaned from top to bottom through cleaning liquid.

The utility model relates to the technical field of auxiliary materials of test equipment, and discloses a Buchner funnel with a filter paper cylinder, which comprises a funnel body, a filter paper cylinder body is arranged on the inner side of the funnel body, and the filter paper cylinder body comprises a base, a limiting plate and an adjusting plate. The outer side of a filter paper material is limited through the limiting plate and the adjusting plate, so that the filter paper material is folded along the folding cross section and is convenient to use, the partition plate is arranged on the bottom side of the base, the bottom of the folded filter paper material can be supported, and the situation that the filter effect is reduced due to the fact that the filter paper material is attached to filter holes in the funnel body is avoided; furthermore, through holes are formed in the top sides of the partition plates, the problem that the filtering effect of the filter paper material is reduced due to blockage of the holes is further avoided, the filter paper cylinder body can be directly taken out by directly pulling the grip after use, the filter paper material is conveniently replaced, filter residues are conveniently taken out, and use is convenient and fast; the filter paper material taking-out difficulty can be effectively reduced, and funnel body pollution is avoided.

The utility model relates to the technical field of chemical engineering, in particular to a vacuum suction filtration device which comprises a suction filtration bottle, the interior of the suction filtration bottle is divided into a main cabin and an auxiliary cabin, the top of the suction filtration bottle is detachably connected with an adapter, the adapter is provided with two upper openings and a lower opening, the top of the adapter is detachably connected with a Buchner funnel, and the Buchner funnel is provided with a lower opening. The lower opening of the Buchner funnel can be communicated with the upper opening of the adapter, the surface of the Buchner funnel is fixedly connected with a protective cover, the protective cover is used for covering the upper surface of the adapter, the surface of the protective cover is provided with a communicating hole, and the communicating hole is communicated with the lower opening of the Buchner funnel. The utility model aims to solve the problem that the conventional suction filtration device generally adopts a single-cabin design mode, so that filtrate and washing liquid are mutually mixed after suction filtration.

The alkali precipitation desalting method comprises the following steps: S1, taking the distilled amine wastewater, slowly adding a certain amount of caustic soda flakes into the distilled amine wastewater, stirring and dissolving in a water bath at 50 DEG C, then cooling to 25 DEG C, and standing for 30 minutes; s2, the solution obtained after standing is further subjected to centrifugal separation and precipitation, upper-layer alkali liquor and precipitates are obtained, and the upper-layer alkali liquor can be circularly used for neutralization reaction liquid to serve as an alkaline raw material for producing tetramethylethylenediamine; and S3, washing the precipitate with deionized water, pouring the washed precipitate into a Buchner funnel, carrying out suction filtration, and carrying out vacuum drying treatment on a filter cake to obtain a pure sodium salt product. Compared with a traditional desalting method, the alkali precipitation desalting method for the amine steaming wastewater has the advantages that the cost is saved, steam distillation is avoided, the upper-layer alkali liquor can still be used as alkali to neutralize reaction liquid before amine steaming, the replacement desalting efficiency is high, the recycled salt can be recycled, the production cost is reduced, environmental protection and economical efficiency are both considered, and the alkali precipitation desalting method is suitable for industrial popularization and application.

The detachable and washable Buchner funnel comprises a funnel outer shell and a filtering inner shell, the filtering inner shell is arranged in the funnel outer shell, an extension pipe is arranged at the bottom end of the funnel outer shell, a leakage cylinder is fixedly installed at the bottom end of the extension pipe, a lower supporting ring is fixedly installed on the inner wall of the funnel outer shell, and the lower supporting ring is fixedly installed on the inner wall of the funnel outer shell. A positioning block is fixedly installed on the upper surface of the lower supporting ring, and a limiting block is fixedly installed on the outer surface of the bottom end of the filtering inner shell. According to the Buchner funnel, the funnel outer shell, the filtering inner shell, the rotating block, the extending pipe, the leakage cylinder, the connecting pipe, the connecting groove, the positioning block, the limiting block, the inserting rod, the upper supporting ring and other components are matched, so that the function of disassembling the Buchner funnel is achieved, the arrangement mode of an existing Buchner funnel is changed, and the Buchner funnel can be disassembled and washed; normal use of the Buchner funnel is guaranteed, meanwhile, residues are prevented from adhering to the interior of the Buchner funnel, the purity of purified substances is guaranteed, and the practicability of the Buchner funnel is improved.

This utility model discloses a Buchner funnel structure for nickel oxide filtration, relating to the field of filtration equipment technology. It includes a buffer section, a funnel section, and a discharge section, which are sequentially connected. A filter cylinder is fitted inside the buffer section, with sieve holes evenly distributed on its lower wall. A limiting edge is provided on one side of the upper end of the filter cylinder's side wall, abutting against the upper edge of the buffer section. A filter cotton plate is provided inside the filter cylinder above the sieve holes. A support seat is provided on the upper part of the outer surface of the discharge section, with its upper end abutting against the outer surface of the funnel section. A sealing plug is provided on the outer surface of the discharge section and at the lower end of the support seat. This design utilizes a filter cotton plate structure specifically for nickel oxide, replacing traditional filter paper to meet the filtration requirements of nickel oxide solid-liquid mixtures. The filtration effect on nickel oxide solid-liquid mixtures meets experimental requirements.

The precise filter paper cutter comprises a funnel body, filter paper and a cutting piece, the filter paper is arranged in the funnel body, the cutting piece comprises a frame body, a cutter body and a pressing piece, the frame body is movably connected to the side wall of the funnel body in a hanging mode, a sliding groove is formed in the lower end of the frame body, and the cutter body is arranged in the sliding groove. A sliding groove is formed in the upper end of the cutter body, a protrusion is arranged at the upper end of the cutter body, movably inserted into the sliding groove and screwed and fixed through a screw, a cutter point is arranged at the lower end of the cutter body, the pressing pieces are arranged on the two sides of the cutter body and synchronously ascend and descend along the sliding groove with the cutter body, and the pressing pieces abut against the filter paper. The filter paper does not need to be taken out and cut, it is ensured that the cut filter paper is consistent with the inner bottom size of the funnel body, the filter paper cutting efficiency is improved, and the working efficiency of experimenters is improved.

A device for filtration or extraction using at least one filtration membrane is disclosed. The device is shaped like a Buchner funnel, but small enough to fit with wide bore pipette tips, slip tip syringes or an adaptor of a robotic liquid handler or pipettor. It also houses one or more filtration membranes and or a separation resin. A reservoir adaptor can be added to the top in a fluid tight manner to provide a removable large volume container where needed for larger samples, and a gasket adaptor allows the reservoir to be connected to other devices in a fluid tight manner.

The utility model discloses a filtering device for extracting soluble dietary fiber, which comprises a Buchner funnel, the Buchner funnel comprises a filtering cavity, the cavity top of the filtering cavity is communicated to be used as a material injection port, a plurality of micropores for filtering are arranged at the cavity bottom, a suction filtration cup is detachably assembled in the filtering cavity, and the suction filtration cup is provided with a filter cavity. The suction filtration cup comprises filter paper laid along the cavity wall of the filter cavity, a filter shell with a through top is formed after the filter paper is laid along the cavity wall of the filter cavity, and a diatomite layer is laid at the bottom of the filter shell. According to the utility model, the Buchner funnel and the self-made suction filtration cup are matched with each other to extract the dietary fibers, and the diatomite layer is isolated from the micropores for filtration on the Buchner funnel by using the filter shell in the whole extraction process, so that the problem of blockage of the micropores is avoided, and the extraction efficiency is ensured.

The invention discloses a carbon powder and amino acid ion composite material preparation method, which comprises: carbon powder activation: taking carbon powder with uniform particle size and a silane coupling agent, adding into a reaction container according to a mass ratio of 1: (0.05-0.2), adding absolute ethyl alcohol with the use amount of 5-10 times of the mass of the carbon powder, mixing, and stirring by using a stirrer to obtain a mixture A; stirring and reacting for 1-3 hours under the constant-temperature water bath condition of 50-70 DEG C; after the reaction is finished, carrying out vacuum filtration by adopting a Buchner funnel, putting a filter cake into an air dry oven, and drying at 60-75 DEG C for 4-6 hours to remove a residual solvent, so as to obtain surface-modified activated carbon powder; the invention relates to the technical field of composite materials. According to the preparation method of the carbon powder and amino acid ion composite material, amino acid and an alkali reagent react to prepare an amino acid ion liquid, and in the step S2, the high purity and stability of the ion liquid are ensured by accurately controlling the pH value and reaction conditions.

This invention belongs to the field of gold detection technology and proposes an automatic filtration and adsorption device and its working method for wet gold detection. The conveying mechanism adopts a double-layer conveying structure. The glass adsorption column operating mechanism includes a first robotic arm that can place the glass adsorption column onto the vacuum filter barrel mechanism. The funnel placement mechanism includes a second robotic arm that can place the funnel onto the glass adsorption column. The sample pouring mechanism includes a third robotic arm that can pour the sample from the measuring cup into the funnel. The glass adsorption column and funnel operating mechanism includes a fourth and a fifth robotic arm that can remove the funnel and the glass adsorption column from the vacuum filter barrel mechanism, respectively. This invention automates a series of operations, including glass adsorption column assembly, filter paper placement, pulp and activated carbon pulp addition, Buchner funnel installation, and sample pouring in stages. It solves problems such as discontinuous process connections and inconsistent filtration and adsorption conditions caused by operational differences, ensuring the repeatability and stability of the detection results.