231results about How to "Consistent concentration" patented technology

The invention relates to a biomass pyrolysis device and a process thereof. The device comprises a charging system, a spiral pyrolysis reactor and a product collection system, wherein a rotating shaft which is communicated with a variable-frequency motor and provided with a spiral propeller is arranged in center holes on two end covers of a cylinder body of the reactor; the side wall of the cylinder body is provided with a biomass feed pipe and a pyrolysis product outlet pipe; the outlet pipe is vertically extended into a coke collection tank; and the coke collection tank are communicated with a condenser, a bio-oil collection tank and a tail gas discharge pipe in turn through an air outlet pipe on the side wall. The process comprises the following technological processes: firstly, starting an external heating system to ensure that the temperature in a reactor is between 500 and 550 DEG C; secondly, putting biomass granular raw materials into the reactor through an inlet pipe, simultaneously starting the variable-frequency motor, and determining the rotating speed n of the variable-frequency motor according to the set residence time t, and the axial length L and the screw pitch l of the spiral propeller; and finally, starting the pyrolysis product collection system. The biomass pyrolysis device can accurately control the pyrolysis time and control the pyrolysis temperature in a partitioning mode so that the obtained bio-oil components are controllable and are easy to extract chemical products.

The invention provides a detection apparatus and a detection method for a photocatalyzed gas degradation rate. The apparatus comprises a completely sealed detection box; the top of the detection box is provided with an openable transparent box cover, the side wall of the detection box is provided with a self-sealing cable interface, an inlet valve and an air pressure balancing valve, a multifunctional rack is arranged in the detection box, a gas detector and ultraviolet lamps are fixed on the top of the multifunctional rack, an elevating sample bench is slidably connected onto the multifunctional rack below the gas detector, a convection blower is fixed at one side of the multifunctional rack, and the gas detector is connected with a computer arranged out of the detection box through a transmission cable passing through the self-sealing cable interface. The photocatalyzed gas degradation detection apparatus and the method provided in the invention have the advantages of a broad detection scope, high detection precision, good repeatability of results and capacity of obtaining a continuous smooth variation curve of gas content and time, are applicable to detection of gas degradation under photocatalysis and can accurately and conveniently evaluate degradation capability of photocatalyst products to gas.

The invention provides a residual liquid dyeing process of cheese in order to reduce the dye consumption for cheese dyeing. The residual liquid dyeing process is characterized in that a dye vat No.1 and a dye vat No.2 are connected through a pump, after yarns in the dye vat No.1 are dyed for the first time, a dyeing solution is pumped into the dye vat No.2, and after the yarns in the dye vat No.2 are dyed, the dyeing solution is returned to the dye vat No.1 to dye undyed yarns; the dyeing solution is recycled for dyeing between the dye vat No.1 and the dye vat No.2 according to the method; and after the dyeing solution is exhausted each time, a post-processing stage is entered, the dyed yarns are taken out after the post-processing is completed, and the undyed yarns are hung to wait for the import of the dyeing solution. According to the residual liquid dyeing process disclosed by the invention, the water consumption and sewage discharge are reduced from the source, resource consumption and environment pollution are reduced, and the cyclic utilization of resources and clean production are realized.

Provided is an inclined entering gas spray header applied to a metal organic chemical vapor deposition reactor, comprising a gas jet tray arranged above the reaction chamber, a gas connecting board arranged above the gas jet tray, and at least two laminated gas distribution boards arranged between the gas connecting board and the gas jet tray, wherein the gas connecting board is provided with a plurality of gas interfaces and cooling liquid interfaces; the gas distribution boards and the gas jet tray are provided with a plurality of mutually isolated gas channels; and the gas channels include a first forebody gas channel, a second forebody gas channel, and the carrier gas channel which are communicated to the corresponding gas interfaces as well as a cooling liquid channel communicated to the cooling liquid interface. The inclined entering gas spray header overcomes the reactant exhaustion along the airflow direction of a horizontal reactor and avoids the defect of uneasiness of forming a stable layer flow in a vertical reactor.

The invention provides a linear evaporation source device for evaporating an evaporation source in a vacuum. The linear evaporation source device comprises a body, an insulating sleeve component, a heating wire and an evaporating cover. The body is provided with a containing trough with an upward opening. The insulating sleeve component is fixed inside the containing trough and comprises a first horizontal insulating sleeve row. The first horizontal insulating sleeve row comprises a plurality of first insulating sleeves projecting at intervals inside the containing trough at the same height. The heating wire is sequentially wound on the first insulating sleeves, and both ends of the heating wire are connected with an external power source electrically. The evaporating cover covers the body and forms a heating cavity with the containing trough. The evaporating cover is provided with holding sockets in one-to-one correspondence to the first insulating sleeves. The holding sockets penetrate through the evaporating cover to form evaporating holes. The linear evaporation source device is capable of forming a plurality of independent evaporation point sources, concentration of evaporated material is evener at any position, and accordingly excellent conditions are created for even coating of a substrate. In addition, the invention further discloses a precise evaporation rate control evaporating unit.

The invention discloses a whey protein / gelatin edible compound film which belongs to the field of food-packaging materials. The compound film is made from whey protein solution and gelatin solution which are added with plasticizer and blended, wherein the weight ratio between whey protein and gelatin is 1-99:99-1. The thickness of the edible compound film is 80 Mu m to 110 Mu m. The weight percentage concentration of the whey protein solution is 8 percent to 10 percent, and the weight percentage concentration of the gelatin solution is 8 percent to 10 percent. The invention also discloses a preparation method for the compound film. The compound film has a high nutritive value and is cheap, and the mechanical properties of the film can be controlled by regulating the compound proportion of whey protein and gelatin in order to adapt to packages for different purposes.

The invention discloses a mixing device for a vehicle engine exhaust gas recirculation (EGR). The mixing device comprises a gas inlet pipe, an exhaust gas pipe, a flow guide shell and an exhaust gas flow guide device, wherein the exhaust gas flow guide device comprises a first flow guide plate, a second flow guide plate, a front exhaust gas passage, a lateral exhaust gas passage and a back exhaust gas passage; one end of the first flow guide plate and one end of the second flow guide plate are connected with the outer wall of the gas inlet pipe, and the other ends of the first flow guide plate and the second flow guide plate are connected with the inner wall of the flow guide shell; a small cavity port of the gas inlet cavity between the first flow guide plate and the second flow guide plate is communicated with the exhaust gas pipe, and a large cavity port of the gas inlet cavity is opposite to the front exhaust gas passage; a part of the gas inlet pipe opposite to the front exhaust gas passage is provided with the back exhaust gas passage; the lateral exhaust gas passage is formed between the front exhaust gas passage and the back exhaust gas passage; the front exhaust gas passage is smaller than the lateral exhaust gas passage; and the lateral exhaust gas passage is smaller than the back exhaust gas passage. According to the mixing device, the uniformity of mixing of exhaust gas and inlet gas can be improved, the stability of operation of an engine is enhanced, the gas inlet pressure loss is small, the structure is simple, and the manufacturing is convenient.

The invention discloses a water-fertilizer all-in-one machine, which comprises a tank body, a vortex stirring and filtering device, a water inlet pipeline and a fertilizer solution discharge pipeline, wherein the vortex stirring and filtering device is fixedly arranged in the tank body, and comprises an accommodating part and a flow directional jet device; a fertilizer solution discharge hole is formed in the lateral wall of the accommodating part; the flow directional jet device is fixedly arranged on the bottom of the accommodating part; a flow inlet end of the flow directional jet device is connected with the water inlet pipeline; a flow outlet end of the flow directional jet device is located in an accommodating space of the accommodating part; and the flow output end of the flow directional jet device is not vertical or parallel to the lateral wall of the accommodating part, so that water jet from the flow output end of the flow directional jet device reaches the lateral wall of the accommodating part at a preset angle and generates vortex under the action of the lateral wall of the accommodating part to dissolve the fertilizer contained in the accommodating part.

The invention discloses a technique for BOE corrosion. The technique comprises the following steps: enabling a silicon wafer to move up and down in acid liquor to reduce bubble quantity clung to the silicon wafer in the corrosion process in the etching process of photoetching technology, entirely taking out the a rack from the liquid surface for 1S so that the bubbles clung to the silicon wafer are easy to break through the quick change of the pressure, and finally the silicon wafer is placed in the acid liquor to continuously move up and down for circular corrosion for 12min, thereby realizing the corrosion on the silicon wafer. The silicon wafer is corroded through a BOE corrosion trough, so that the corrosion liquor can circularly flow to maintain the consistent concentration of the corrosion liquor at various locations in the trough in the corrosion process; and meanwhile, the flowing corrosion liquor can completely or mostly remove the bubbles clung to the silicon wafer, the silicon wafer corrosion consistency is improved, and the influence on the corrosion effect by the bubbles produced in the corrosion process is reduced.

The invention discloses a diamond wire saw production line capable of ensuring enough sanding time for a metal wire and improving the moving speed of the metal wire. The production line comprises a wire placing device, an alkali washing device, a before-acid water washing device, a acid washing device, a before-sanding water washing device, a sanding device, an after-sanding washing device, a sand consolidating device, an after-sand-consolidation water washing device, a drying device and a wire taking device which are disposed successively along the moving direction of the metal wire used for electro-plating diamond micro powder. The sanding device comprises a sanding tank; at least one liquid inlet is disposed on the bottom or the lower part of the sanding tank; both sides of the sanding tank are respectively provided with a tumbling barrel; the pair of tumbling barrels are disposed parallelly and horizontally; a plurality of wire grooves are formed on the tumbling barrels; and an upper and a lower wire passing hole are formed on the sanding tank at the sides near the corresponding tumbling barrels. Compared with the traditional diamond wire saw production lines, the wire speed of the production line disclosed by the invention is improved by more than 5 times.

The invention relates to an SF6 decomposition product multi-component dynamic gas preparation method. The method realizes gas mixing preparation through a mass flow mix technology, and comprises the following steps: inputting a standard sample gas and a background gas, dynamically preparing a dry background gas source and a wet background gas source, dynamically preparing dry SF6 decomposition product multi-components gas with different concentrations, and dynamically preparing SF6 decomposition product multi-component gas with different humidity values. The SF6 decomposition product multi-component dynamic gas preparation method can simulate the decomposition product concentration of onsite gas to dynamically prepare decomposition product standard mixed gas with different concentrations, verifies an SF6 decomposition product instrument, has the advantages of high convenience, fastness, and easiness in operation, and greatly improves the gas preparation working efficiency in the dynamic preparation process; and single-component and multi-component standard gases prepared in the invention are difficultly influenced by the temperature and pressure change of environment, and the practical concentration of the prepared gas is same to an ideal gas concentration, sot eh precision of the prepared gas is guaranteed.

The invention relates to an energy-saving type filling machine with uniform filling based on the internet of things. The energy-saving type filling machine comprises a machine base, a filling table, amain shaft, a storage barrel, a filling valve, a mixing mechanism and a vibration mechanism, wherein the mixing mechanism comprises a mixing assembly and a lifting assembly, and the vibration mechanism comprises a steering assembly and a vibration assembly. According to the energy-saving type filling machine with uniform filling based on the internet of things, raw materials are periodically mixed by the mixing mechanism, so that the raw materials are prevented from depositing in a filling process, a certain degree of uniformity of the raw materials can be kept all the time, the consistent concentration of filled products is guaranteed, and the uniform filling of the raw materials is realized; in addition, when the filling of the raw materials in the storage barrel is nearly finished, thestorage barrel is vibrated by the vibration mechanism, so that the raw materials attached to the inner wall of the storage barrel drop down, filling can be realized by virtue of the filling valve, the waste of the raw materials is avoided, and the raw material input cost of an enterprise is reduced.

The invention relates to a method for preparing monodisperse large-particle-diameter silica sol through organic-inorganic complex catalysis. The method includes the following steps that 1, silica powder is added into an inorganic alkali solution, the mass ratio of the silica powder to water is controlled to be 1:8-15, and a reaction is conducted to obtain a silica sol mother solution with the pH of 9.5-10.5; 2, an organic alkali solution is added into the silica sol mother solution, a reaction is conducted at 70-90 DEG C to increase the particle diameter, and the system pH value in the reaction process is controlled to be 9.5-10.5; 3, after the reaction is finished, unreacted solid impurities in reaction liquid are removed, the product is concentrated to needed concentration, and then the monodisperse large-particle-diameter silica sol is obtained. According to the difference of the relative use quantities and proportions of two kinds of catalysts added in two steps and the difference of the particle diameters, activities and use quantities of the selected silica powder, the monodisperse large-particle-diameter silica sol with the mean particle diameter ranging from 20 nm to 100 nm or so is prepared.

The invention discloses a method for preparing nanometer magnesium hydroxide from phosphorus ore magnesium removal waste liquor. The method specifically includes subjecting ammonia gas and the phosphorus ore magnesium removal waste liquor to further neutralizing and edulcorating reaction in a submerged circulating impinging stream reactor, and performing solid-liquid separation after the reaction so as to obtain mother liquor; adding a dispersant into the mother liquor, and continuing to feed the ammonia gas for magnesium precipitation reaction so as to reach a pH value of 10-11; performing solid-liquid separation, washing and drying after the reaction so as to obtain nanometer magnesium hydroxide powder. The nanometer magnesium hydroxide prepared by the method has the purity up to 98%, is small in particle size and regular in shape and can be widely applied to the fields of fire retardants and flue gas desulfurizing agents, and secondary utilization of resources is achieved effectively.