290 results about "Solid matter" patented technology

The invention discloses a grating dam safety evaluation and design method and structure based on debris flow blocking degree. Wherein the safety assessment method comprises the following steps: S100, calculating the safety of the debris flow on the basis of the solid matter concentration of a debris flow susceptible area, the particle size value corresponding to the accumulated content of 95% in a full particle size grading curve, the channel average gradient, the channel average width and the primary debris flow scale in the section range of the grating dam, the minimum particle size value of the maximum boulder in the drainage basin and the opening width of the grating dam; calculating a critical blocking judgment coefficient according to the correlation value of the height of the grating dam, the angle of the wedge-shaped structure and 60 degrees and the correlation value of the total amount of debris flow solid substances and the reservoir capacity of the wedge-shaped beam type grating dam; and S200, evaluating the safety of the grating dam based on the critical blocking discrimination coefficient. The evaluation and design method and structure incorporate the relative relation between the debris flow scale and the dam body storage capacity, meanwhile, the influence on active structure parameters such as wedge-shaped flow guide is quantified, and the blocking state prediction accuracy of the grating dam in actual operation is improved to a certain degree.

The invention discloses a method for preparing methylaluminoxane by directly hydrolyzing trimethyl aluminum and a reaction device, and belongs to the technical field of chemical products. Comprising the following steps: introducing low-temperature methane gas containing gas-phase water into a trimethylaluminum organic solution, carrying out hydrolysis reaction under the dual effects of ultrasonic vibration and mechanical stirring and mixing, and filtering to remove solid substances after the reaction is completed, so as to obtain a methylaluminoxane solution. According to the method for preparing methylaluminoxane through direct hydrolysis of trimethyl aluminum, the hydrolysis quality of methylaluminoxane can be guaranteed, generation of gels such as aluminum hydroxide is effectively controlled, and the product yield is greatly increased; and the byproduct methane is high in purity, can be recycled and is free of environmental pollution and energy waste, so that the production cost is remarkably reduced.

The invention relates to a method for treating wastewater containing suspended solids and metal ions, which comprises the following steps: introducing CO2-containing gas into the wastewater containing suspended solids and metal ions to carry out air flotation treatment, and adding a chemical agent Y1 which is an amino or amidino porous polymer at the same time; separating solids after treatment to obtain water, adding an agent Y2 for stirring treatment, and separating solids after reaction; the agent Y2 is a polysilicic acid-based inorganic-organic hybrid flocculating agent. According to the invention, suspended solids and metal ions in wastewater can be efficiently removed, secondary pollution of water is avoided, and the treatment process is simple, convenient and efficient.

The invention discloses a preparation method and application of crab shell chitin without chemical decolorization, and the preparation method comprises the following steps: crushing the crab shell of Eriocheir sinensis to obtain crab shell powder; dissolving crab shell powder in distilled water according to a ratio of 1: 10-1: 30 (w / v) to obtain a crab shell powder solution; treating the crab shell powder solution by using plasma jet (PJ), washing to be neutral, and drying to obtain plasma pretreated crab shell powder; dissolving the crab shell powder pretreated by the plasma into 0.1-3M hydrochloric acid (HCl) solution according to the ratio of (1: 10)-(1: 30) (w / v), and carrying out demineralization treatment; washing the demineralized solid matter to be neutral, performing deproteinization treatment by using 0.1-3M sodium hydroxide (NaOH) solution, washing to be neutral, and drying to obtain white solid crab shell chitin. In the extraction process of the crab shell chitin, a strong oxidant (such as H2O2) is not required to be used for decoloring, the color is close to that of commercial chitin, and the process is simple, green and environment-friendly; meanwhile, the production cost is reduced.

A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline includes a pipeline data monitoring terminal, a current and an electric pulse control terminal, a land console, an electric heating terminal, a wiring flange, an oil and gas transportation pipeline, a valve structure. The system monitors the state of the pipeline in real time by the pipeline data monitoring terminal, and transmits the monitoring data to the current and electric pulse control terminal in real time, the current and electric pulse control terminal produces different thermal responses to the electric heating terminal according to the state in the tube, raises the temperature inside the tube by generating a continuous current, unblocks pipeline by generating high power electric pulse, so as to realize real-time monitoring and local temperature dynamic control of oil and gas transportation pipeline.

The invention belongs to the technical field of high-activity tungsten powder preparation, and particularly relates to high-specific-surface-area high-activity tungsten powder and a preparation method thereof.The preparation method comprises the steps that diluted hydrochloric acid is added into an ammonium tungstate solution to adjust the pH to be acidic, then hydrogen peroxide is added, and a mixed solution is obtained; carrying out vacuum drying on the mixed solution at the temperature of less than or equal to 80 DEG C to obtain a solid substance; and in the hydrogen atmosphere, the solid matter is reduced, the tungsten powder with the high specific surface area and the high activity is obtained, and the specific surface area is larger than or equal to 10 m < 2 > / g. According to the technical scheme, ammonium chloride and peroxotungstic acid are creatively applied to be subjected to low-temperature heating decomposition to generate a large amount of gas to form a porous framework, and therefore the nano tungsten powder controllable in granularity, good in dispersity, high in specific surface area and high in activity is prepared; the performance of the high-specific-surface-area and high-activity nano tungsten powder can be controlled by simply controlling process conditions; and the application potential of the nano tungsten powder as a novel high-performance tungsten material is increased.

The invention provides a synthesis method of nonanoic acid-2, 2-dinitropropyl ester, which comprises the following steps: mixing an organic solvent, 2, 2-dinitropropanol, nonanoic acid and a solid acid catalyst, and heating to react; the preparation method of the solid acid catalyst comprises the following steps: mixing and dipping a zirconyl nitrate aqueous solution and microsphere silica gel, separating a solid, carrying out heat treatment on the solid at 80-150 DEG C, soaking the solid subjected to heat treatment in sulfuric acid, and roasting the soaked solid at 400-600 DEG C to obtain the solid acid catalyst. According to the synthesis method of the nonanoic acid-2, 2-dinitropropyl ester, the use of liquid strong acid is avoided, the operation is simple, the corrosion to reaction equipment is reduced, and the solid acid catalyst can be repeatedly utilized.

Provided is a member for suppressing deterioration of edible oil, which does not require the use of a special device such as a frying device provided with a circulating filtration mechanism, and thus does not require the replacement of filter paper and filter, and also does not require the collection of solids generated in the edible oil such as oil residues. The edible oil deterioration suppressing member (10) includes: a deterioration suppressing agent (1) including at least one of an oxide and a hydroxide; and a fiber base material for supporting the deterioration inhibitor (1) and used by being immersed in an edible oil.

The application discloses an assembled drainage structure, relates to the technical field of assembled drainage, and comprises a wall body, a connecting ring is arranged at the bottom of the wall body, the connecting ring is fixedly connected with a sealing ring on the side close to the wall body, the bottom of the connecting ring is fixedly connected with a plug rod mechanism, the plug rod mechanism is fixedly connected with an extension rod, the extension rod is fixedly connected with a vertical rod, the vertical rod is fixedly connected with a length adjusting mechanism, the length adjusting mechanism is fixedly connected with a pressing plate mechanism, the bottom of the connecting ring is fixedly connected with a collecting shell, a filter screen is arranged in the collecting shell, the bottom of the collecting shell is fixedly connected with a collecting pipe, an assembled pipe mechanism is arranged below the collecting pipe, a turnover cover mechanism and a limiting clamping rod mechanism are arranged in the collecting pipe, and a discharging cover mechanism is fixedly connected to the side edge of the collecting shell. The plug rod mechanism is arranged to realize the connection and installation of the pressing plate mechanism, the connecting ring and the wall body are connected through the pressing plate mechanism, the relative position of the connecting ring and the wall body is fixed, and the filter screen can block and filter solid matters such as fallen leaves.

A method for controlling enzymatic hydrolysis of biomass-derived feedstock in a manufacturing process of a chemical bioproduct is disclosed. The enzymatic hydrolysis may take place in a hydrolysis reaction mixture. The hydrolysis reaction mixture may comprise solid matter. The method may comprise performing at least one Brix measurement on the hydrolysis reaction mixture; and controlling a dosing of at least one enzyme into the hydrolysis reaction mixture at least partially based on the results obtained from the at least one Brix measurement; wherein the results indicate a content of one or more soluble carbohydrates in the hydrolysis reaction mixture, and wherein the controlling of the dosing of the at least one enzyme into the hydrolysis reaction mixture is performed in order to affect at least the conversion of cellulose and optionally hemicellulose into monomeric carbohydrates in the hydrolysis reaction mixture.

The invention relates to a composition for producing polyurethane foams, comprising (A) a polyol component, (B) a polyisocyanate component, (C) at least one catalyst that catalyzes isocyanate-polyol reactions, isocyanate-water reactions and / or isocyanate trimerization, (D) at least one foam stabilizer, (E) at least one chemical and / or physical blowing agent, (F) at least one solid, wherein the at least one foam stabilizer is selected from the group of polyether siloxanes of a general average composition according to Formula 1: MaMb1DcDd1.

The invention relates to the field of coal washing slurry treatment, and discloses coal washing slurry treatment equipment which comprises a base, a guide rail fixedly mounted on the base and a sliding seat slidably mounted on the guide rail, and further comprises a driving assembly, the driving assembly comprises a supporting rod, one end of the supporting rod is fixedly mounted on the base, and the other end of the supporting rod is fixedly mounted on the sliding seat; a mounting plate is fixedly mounted at the end, away from the base, of the supporting rod, a driving motor is fixedly mounted on the mounting plate, and a gear is fixedly mounted at the lower end of the driving motor. Through cooperation of the driving assembly and the blocking assembly, when the device is used for treating slurry, the driving assembly can drive the centrifugal barrel to rotate, solid matter and liquid matter in the slurry are separated through centrifugal force generated during rotation, and meanwhile, the solid matter and the liquid matter in the slurry are separated; by arranging the blocking assembly, collision friction between solid matter and the device can be reduced, the probability of abrasion of the device is reduced, and economic benefits are improved.

The invention provides an efficient resourceful treatment method for industrial wastewater, and belongs to the technical field of wastewater treatment. The method comprises the following steps: adjusting the pH value of wastewater to be treated to 6.8-7.4, adding a composite reducing agent, reacting to obtain a reaction solution, and filtering and separating the reaction solution to obtain a nitrogen-containing filtrate and filter residues; mixing the nitrogen-containing filtrate, magnesium hydroxide and phosphoric acid, adjusting the pH value to 8.5-9.2, reacting, and centrifuging to obtain a supernatant and a solid matter; and performing post-treatment on the supernate to obtain effluent, and drying the solid matter to obtain the nitrogen fertilizer. According to the method, nitrate nitrogen and nitrite nitrogen in the wastewater are reduced into ammoniacal nitrogen through the composite reducing agent, and then the ammoniacal nitrogen is solidified and crystallized through the nitrogen fixing agent. According to the method, inorganic nitrogen in wastewater is used as a raw material, conversion from nitrate nitrogen to ammoniacal nitrogen is completed by means of a composite reducing agent, efficient fixation of ammoniacal nitrogen is achieved, the situation that nitrogen escapes in the form of nitrogen is avoided, the nitrogen is converted into solid nitrogen fertilizer, and available resources are provided for downstream related enterprises.

The invention provides a method for determining the floating content of a binder of a negative plate and application. The method comprises the following steps: acquiring a first weight loss ratio a0 of a negative electrode material at a first position of the negative plate in a target temperature interval; adding the negative electrode material at the first position into a target solvent for reflux, and then filtering and drying to obtain a solid substance; obtaining a second weight loss ratio a1 of the solid substance in the target temperature interval; obtaining a third weight loss ratio x1 of the binder standard substance and a fourth weight loss ratio x3 of the thickener standard substance; obtaining a first actual mass content of the binder based on a0, a1, x1 and x3; and obtaining the floating content of the binder based on the first actual mass content and the designed mass content of the binder. According to the method for determining the floating content of the binder in the negative electrode plate, the actual content of the binder in the negative electrode material at any position in the negative electrode plate can be quantitatively analyzed, and then the floating content of the binder is obtained by combining the design content of the binder.

The utility model relates to a solid-liquid separation device and a water pump applying the solid-liquid separation device, which solve the problem that solid substances in liquid are difficult to solve in the prior art, and adopt the technical scheme that the solid-liquid separation device comprises a separation cylinder with a liquid inlet, and a flow guide liquid outlet cylinder which is arranged on the separation cylinder and is provided with a liquid outlet, the separation barrel and the flow guide liquid outlet barrel are matched to form a solid-liquid separation channel communicated with the liquid inlet and the liquid outlet, the solid-liquid separation channel at least comprises a liquid inlet channel, a separation channel and a liquid outlet channel, and the tail end of the liquid inlet channel is matched with the flow guide liquid outlet barrel. The device has the advantages that liquid entering the liquid inlet channel impacts the corresponding part of the flow guide liquid outlet cylinder to change the flowing direction and flow into the separation channel, the tail end of the separation channel is matched with the separation cylinder, sand in the liquid in the separation channel is deposited in the deposition structure of the corresponding part of the separation cylinder, and the liquid changes the flowing direction and flows into the liquid outlet channel; and the separated liquid flows out from the liquid outlet, so that solid-liquid separation is realized, the solid-liquid separation effect is good, and the efficiency is high.

The utility model relates to the technical field of coal washing and processing, in particular to a slime water treatment device for coal washing and processing, which comprises a base and a treatment barrel arranged at the top of the base, and further comprises a feed port arranged at the top of the treatment barrel, a water outlet is arranged at the bottom of the surface of the treatment barrel, and a stepping motor is bolted at the top of the treatment barrel. A rotating mechanism is arranged on one side of the stepping motor; under the cooperation of the stepping motor and the rotating mechanism, the stirring rods on the surface of the first rotating rod can rotate, and the stirring rods on the surface of the second rotating rod can rotate in the opposite directions at the same time, so that the mixing effect of a flocculating agent and slime water is accelerated, and the working efficiency of the device is improved; and meanwhile, under the cooperation of a rotating shaft, a connecting rod and a vibration mechanism, a filter screen can vibrate in the inner cavity of the treatment barrel, the situation that solid matter is accumulated at the top of the filter screen is effectively prevented, and therefore the water source discharging speed of the device is increased.

The utility model discloses a food sectional type liquid nitrogen quick-freezing tunnel structure which comprises a first liquid nitrogen quick-freezing tunnel and a second liquid nitrogen quick-freezing tunnel, and a feeding port and a discharging port are formed in the two ends of the first liquid nitrogen quick-freezing tunnel and the two ends of the second liquid nitrogen quick-freezing tunnel respectively. And a conveying assembly is arranged between the discharge port of the first liquid nitrogen quick-freezing tunnel and the feed port of the second liquid nitrogen quick-freezing tunnel. According to the Fotiaoqiang soup quick-freezing device, a container containing Fotiaoqiang soup is put in from the feeding port of the first liquid nitrogen quick-freezing tunnel, quick-freezing is conducted through the first liquid nitrogen quick-freezing tunnel, the quick-frozen Fotiaoqiang is discharged from the discharging port of the first liquid nitrogen quick-freezing tunnel, and then the Fotiaoqiang is conveyed to the direction of the second quick-freezing tunnel through the conveying assembly; a feeding assembly arranged above the conveying assembly is used for adding dry substances of Fotiaoqiang into the container, the Fotiaoqiang after the dry substances are added enters the second quick-freezing tunnel for quick-freezing, and after quick-freezing is completed, separation and quick-freezing of soup and solid substances of the Fotiaoqiang are achieved.

This invention discloses a sodium-intercalated precursor and a cathode material, their preparation methods, a cathode, and a sodium-ion battery. The disclosed method for preparing the nickel-iron-manganese sodium-intercalated precursor includes: introducing a metal salt solution, a sodium hydroxide solution, and ammonia into a reaction vessel, while simultaneously introducing oxygen and an inert gas below the liquid surface to conduct a co-precipitation reaction; the metal salt solution is a salt solution containing nickel, iron, and manganese; stopping the introduction of oxygen when the particle D50 in the reaction vessel reaches 2–5 μm; stopping the introduction of the metal salt solution and ammonia when the particle D50 in the reaction vessel increases to 2–13 μm; raising the temperature of the reaction vessel to 70–90°C, continuing to introduce sodium hydroxide solution until the pH reaches 12–13, and then introducing an oxidant solution into the reaction vessel to react fully for a period of time to obtain a slurry; and extracting the solid matter from the slurry to obtain the precursor. The precursor prepared by this method has uniform sodium intercalation and exhibits excellent electrochemical performance when used as a cathode material.

A method of producing useful fuel fluids from solid plastic waste, including loading solid plastic waste matter into a reaction chamber to define a load, subjecting the load to HTP to extract hydrocarbon mixtures, filtering the hydrocarbon mixtures to extract solid matter, and separating the hydrocarbon mixtures into a light fraction (C1 to C25) and a heavy fraction (C26 to C31). The heavy fraction is directed to a first container and the light fraction is directed to a second container. The light fraction is separated into diesel (C8-C25), gasoline (C4-C12), and vapor (C1-C5), and the diesel is directed to a third container, the gasoline is directed to a fourth container, and the vapor is directed to a fifth container. The hydrocarbon mixtures have a carbon number distribution between C1 and C31. The pressure in the reaction chamber is typically between 0.1 and 10 MPa and the temperature in the reaction chamber is between 350 and 500 degrees Celsius. The plastic waste is selected from the group consisting of PS, PE, PP, and mixtures thereof.

The invention relates to the technical field of radar base stations, in particular to cleaning equipment for a radar base station, which comprises a bottom plate, a T-shaped seat is mounted in the center of the surface of the bottom plate, and support frames are fixed on two sides between the T-shaped seat and the bottom plate; a rectangular groove and strip-shaped limiting grooves close to the two sides of the inner wall of the rectangular groove are formed in one side of the T-shaped base. The longitudinal moving mechanism is arranged in the rectangular groove and used for driving the cleaning component to move longitudinally; the transverse adjusting mechanism is connected with the longitudinal moving mechanism and used for driving the cleaning component to move transversely; according to the radar base station cleaning device, the situation that solid matter scours the surface of a radar base station is reduced, damage to the radar base station is reduced, a diversion box plays a role in diversion while filtering is conducted, water flow sprayed out of a fan-shaped spray head has a radian, and the radar base station is flushed from bottom to top at a certain oblique angle, so that the radar base station is cleaned, and the service life of the radar base station is prolonged. And the brought pressure is small, and the radar base station is not easy to damage.

The utility model discloses a sponge city water body purification device which comprises a filter tank, a gathering filter structure and an auxiliary filter structure, the gathering filter structure is connected to the filter tank, and the auxiliary filter structure is installed on the inner side of the filter tank. The gathering and filtering structure is ingenious in design, liquid and solid matter are effectively separated through the synergistic effect of the horn-shaped gathering block, the T-shaped drainage pipe and other components, and the purification efficiency is improved; meanwhile, due to the application of the stirring gear driver, the flow dividing roller can rotate, and the separation effect is further enhanced; and secondly, the auxiliary filtering structure is powerful in function, stable lifting of a filtering concentric-square-shaped block is achieved through a filtering pulley block, a stretching winch and other components, efficient filtering is conducted in cooperation with an ultrasonic vibrator, neutralization treatment is achieved through a liquid medicine tank and a feeding valve, and the purification quality is improved.

The present invention provides a method for preparing an antibacterial agent using a mushroom and an antibacterial agent made therefrom. The antibacterial agent is made by using a residue left after preparing health foods from mushrooms, treatment with alcohol to obtain a solid matter, treatment with IN sodium hydroxide after drying, autoclaving, rinsing with water, filtering for decolorization and treatment with 10N-15N sodium hydroxide as needed.

The application discloses a reaction system with a straight-through particle collection recycling function, which comprises a reactor and a particle collector, the particle collector is located outside the reactor, and the reactor is connected with the particle collector through a pipeline; wherein the particle collector comprises a shell and a filter part arranged in the shell; the filter part is surrounded by a filter material and is used for intercepting solid substances; the upper end of the filter part is a feeding end, and the lower end of the filter part is a discharging end; a flushing part is arranged in the filter part and is used for flushing the solid substances intercepted in the filter part. The solid catalyst in the reaction system is effectively separated from the reaction system, and the separated catalyst is flushed and then put into the reaction again. In the flushing process, no liquid substance outside the reaction system needs to be additionally used.

A brightening and stain-removing laundry sheet and a preparation method therefor. The laundry sheet comprises: a film-forming agent, an anionic surfactant, a nonionic surfactant, a fluorescent brightening agent, an anti-fouling agent, an enzyme formulation, a plant extract, a chelating agent, and an auxiliary agent. The film-forming agent comprises a film-forming agent A and a film-forming agent B, the film-forming agent A being polyvinyl alcohol, and the film-forming agent B comprising one or more of polyvinylpyrrolidone and modified polyvinyl alcohol. The anionic surfactant comprises sodium alkyl sulfate, sodium fatty acid methyl ester sulfonate, and sodium α-alkenyl sulfonate; and the nonionic surfactant comprises polyglycerol ester of fatty acid, fatty alcohol-polyoxyethylene ether, fatty acid methyl ester ethoxylate, and alkyl polyglycoside. The laundry sheet has high solubility, achieves a remarkable brightening effect on fabrics while having stain-removing capability, and further possesses the advantages of good portability, convenient use, no solid matter remaining after use, etc.

An electronic die assembly includes a first die and a second die superimposed on and electrically and mechanically connected to each other; first superconducting interconnection pads disposed on a first face of the first die and having in a first direction a first repeat pitch less than or equal to 10 μm; and second superconducting interconnection pads disposed on a first face of the second die and having in the first direction a second repeat pitch equal to the first repeat pitch; the first superconducting interconnection pads being in direct contact with the second superconducting interconnection pads; and the first face of the first die and the first face of the second die being separated by a solid matter-free gap.

The present invention relates to a treatment process for reducing the sulfur content of calcined petroleum coke, and belongs to the technical field of petroleum coke desulfurization process. The treatment process comprises grinding the petroleum coke, screening it, adding a composite catalyst, mixing it, and then performing a high-temperature calcination treatment, which is completed after cooling; the preparation of the composite catalyst comprises: grinding and mixing rectorite, light calcium carbonate and anhydrous ethanol, adding mercaptosuccinic acid and stirring and mixing, adding a coupling agent and mixing it, and then heating it, filtering out the solid matter, vacuum drying and calcining it, adding ethylene glycol and deionized water and mixing it, adding nickel nitrate hexahydrate and ammonium molybdate tetrahydrate, adding ammonia water and heating and stirring it, cooling it to room temperature and then centrifuging it, washing it three times with an ethanol solution, vacuum drying it and then calcining it. The treatment process of the composite catalyst prepared by the present invention for catalyzing the desulfurization of petroleum coke has excellent desulfurization effect and can effectively reduce the sulfur content of calcined petroleum coke.

The utility model discloses slurry circulating pump operation filtering equipment for coal-fired unit wet desulphurization, one end of a slurry circulating pump is fixedly connected with a connecting pipe, and one end of the connecting pipe is fixedly connected with a filtering box. By arranging the arc-shaped filter plate, solid substances in slurry are intercepted in the filter box, blockage of a conveying pipeline or damage of parts in a pump caused by residual particulate matters in the slurry is prevented, the service life of equipment is prolonged, and meanwhile, the arc-shaped filter plate is arc-shaped, so that impact force during flowing of the slurry can be effectively relieved, pressure borne by the arc-shaped filter plate is relieved, and the service life of the equipment is prolonged. The arc-shaped filter plate is prevented from being impacted by slurry to shake or be damaged after long-time operation and use, the reinforcing arc-shaped plates, the connecting vertical strips and the supporting folded plates all play a role in supporting and stabilizing the arc-shaped filter plate, and the structural strength of the arc-shaped filter plate is enhanced.

The water pan comprises a water pan body, the water pan body is provided with a water receiving groove, the bottom wall of the water receiving groove is provided with a slag accumulation groove, the bottom wall of the slag accumulation groove is provided with a drainage hole and a protruding section, and the protruding section surrounds the drainage hole. According to the water pan, the slag accumulation groove is formed in the bottom wall of the water receiving groove, the drainage hole and the protruding section are arranged on the bottom wall of the slag accumulation groove, and the protruding section surrounds the drainage hole, so that condensate water in the water receiving groove firstly flows into a slag accumulation area defined by the inner wall of the slag accumulation groove and the outer wall of the protruding section; dust, silt and other solids settle and gather in the slag accumulation area under the action of gravity, the dust, silt and other solids are prevented from directly flowing to the drainage hole along with condensate water and blocking the drainage pipe, it can be guaranteed that the condensate water is normally discharged through the drainage pipe, and potential safety hazards of a circuit are avoided.

The utility model discloses a single-screw sludge extruding, filtering and screening machine which comprises a tank body, a feeding pipe connected to the inner wall of one side of the tank body and a screw rod rotationally installed on the outer wall of the top of the tank body, and further comprises a first motor installed on the outer wall of the top of the tank body, and an output shaft of the first motor is connected with the screw rod; and a rotating assembly is mounted on the outer wall of one side of the tank body. According to the utility model, the two filtering assemblies are arranged and can be alternately used in a transposition manner, so that the sludge filtering work is not delayed when filtered large-particle impurities and solid substances are cleaned, and the used filtering assemblies can be overturned in the transposition process, so that the filtering surfaces of the filtering assemblies face downwards, and the filtering efficiency is improved. The spiral rod can drive the impact assembly to move up and down under the action of the transmission assembly and the rotating assembly in the rotary sludge conveying process, the used filter assembly is moderately impacted, large-particle impurities and solid substances fall off from the filter assembly, filtered substances are automatically cleaned, and more convenience is achieved.

The present invention relates to the technical field of fowl bile processing, and in particular to a method for detecting the bile acid content in fowl bile based on turbidity, which comprises the following steps: adjusting a solution containing bound bile acid to alkaline to obtain a suspension; and then measuring the OD value of the suspension. 600 This solution can solve the technical problems of long time and high cost in detecting bile acid content in poultry bile. When the purchased poultry bile raw materials arrive at the inspection site, this method can be used to conduct a preliminary test on the bile acid content in the poultry bile, and complete the on-site inspection work. Unqualified products with too low bile acid content can be returned on the spot, which greatly saves time and cost. This solution can be applied to practical operations such as the quality inspection of poultry bile, the research and development and production of poultry bile powder and artificial bear bile powder.