1223results about How to "Increase the degree of mixing" patented technology

The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.

The invention provides a production method of biodiesel. The production method comprises the steps of preprocessing of raw oil, esterification reaction, transesterification, dealcoholization, washing, distillation and deodorization, methanol distillation and recycling, glycerin purification and recycling and other steps. The production method has the advantages that the utilization rate of raw oil is high; few esterifying catalysts are needed; the catalytic activity is high; the esterification reaction is performed within a short time; a water-bath heating system is adopted, so that the temperature of heating a medium can be controlled effectively, and the generated unsaponifiable matters can be effectively decreased; in addition, the heat produced in reaction can be recycled, thus the energy consumption is reduced; the unreacted methanol can be recycled that the production cost is reduced. The biodiesel has acid value up to 0.5mgKOH/g and yield up to more than 92%, has the quality meeting BD100, and is suitable for industrial production.

A W-shaped flame boiler disposing aperture type over-fire air spouts on a stove arch relates to a W-shaped flame boiler. The invention aims at solving the problems of existing W-shaped flame boilers that the burnout degree of coal powder is low, and the efficiency of the boiler is reduced when simultaneously increasing over-fire air and reducing the discharge of NOx. A plurality of the aperture type over-fire air spouts are divided into two groups, the two groups of the aperture type over-fire air spouts are symmetrically arranged along the central line of a boiler body, a group of aperture type over-fire air spouts are correspondingly arranged on each stove arch near the neck aperture of a hearth, one group of the aperture type over-fire air spouts are arranged in parallel along the length direction and are all communicated with a lower hearth of the lower boiler body, the sections of the aperture type over-fire air spouts are rectangles with the ratio of length to width is (5-7):1, and the central line of each aperture type over-fire air spout and the horizontal line form an included angle of 20-35 degrees. The distance between adjacent aperture type over-fire air spouts is 100 mm. The setting of the aperture type over-fire air spouts prolongs the reacting time between uncombusted coal powder granules and the over-fire air, and enables the combustion to be more compete.

The invention discloses a method for catalytically oxidizing cyclohexane, which is characterized in that cyclohexane, hydrogen peroxide and a catalyst are in contact for reacting, the mol ratio of the cyclohexane to the hydrogen peroxide is 0.5-8, the concentration of the catalyst in a reaction system is 0.005-0.1g/min, the reaction temperature is 40-150 DEG C, the catalyst is a titanium-silicon molecular sieve with an MFI structure, a hysteresis loop exits between an adsorption isotherm and a desorption isotherm of low-temperature nitrogen absorption of the molecular sieve, a crystalline grain is a single hollow crystalline grain or an aggregated crystalline grain formed by the aggregation of a plurality of hollow crystalline grains, the radial length of the cavity part of the hollow crystalline grains is 5-300nm, and the benzene adsorption capacity of the sample of the molecular sieve, measured under the conditions that the absorption time is 1h, the temperature is 25 DEG C and P/P0 is equal to 0.10, is at least 70mg/g. The method has the advantages of high selectivity of a target product and environment protection.

The invention discloses a high-flux contamination-resisting type flat membrane bioreactor and a flat MBR (Membrane Bioreactor) device. The flat membrane bioreactor comprises an aerating box, at least two membrane boxes and at least two water collecting tubes, wherein the aerating box is provided with an aerating tube for supplying gas to the aerating box; one end of the aerating tube extends into the aerating box; the at least two membrane boxes are overlapped on the aerating box along the vertical direction; two adjacent membrane boxes are connected with each other; the aerating box is connected with the downmost membrane box; each of the membrane boxes comprises a frame and multiple flat membrane elements arranged in the frame at intervals; a water purifying space is defined in each flat membrane element; each flat membrane element is provided with a water-generating tube communicated with the corresponding water purifying space; the at least two water collecting tubes respectively correspond to the at least two membrane boxes one by one; each water collecting tube is connected with the water-generating tubes of the multiple flat membrane elements in the corresponding membrane box. According to the high-flux contamination-resisting type flat membrane bioreactor disclosed by the invention, the high-flux contamination-resisting type flat membrane bioreactor has the characteristics of high flux, excellent contamination-resisting performance, long service life and low cost.

The invention discloses a valve body external-open air distribution engine which comprises an air inlet channel, an exhaust passage, a combustion chamber outer wall and a combustion chamber; the combustion chamber outer wall is provided with one or a plurality of external-open air distribution seat openings which cause the air inlet channel and the exhaust passage to be respectively or simultaneously communicated with the combustion chamber; each external-open air distribution seat opening is correspondingly provided with an external-open air distribution valve body; the external-open air distribution valve body is directly controlled or through a connecting piece by a valve body timing control device. The external-open air distribution seat opening corresponding to the external-open air distribution valve body is opened or closed according to the timing requirement of the engine. The engine can reduce the loss of air distribution and flow restriction and causes the degree of air current flowing and flue gas mixing in an air cylinder to be increased, thus increasing the efficiency of the engine.

The invention relates to a smoke gas purification device by a semidry process, which is provided with an independent desuperheating tower, comprising a reaction tower provided with an smoke inlet box, a smoke gas outlet, a venturi tube type tower wall arranged on a tower bottom, a water injector arranged on the tower wall and a nozzle for lime dry powder and revert dust; and the smoke gas outlet is connected with an inertia separator, an activated carbon mixer, a bag-type dust remover and a draught fan. The invention is characterized in that the invention is also provided with the desuperheating tower which is provided with a boiler smoke gas inlet manifold, a single-stage water injector, an ash bucket with an ash hole and a gas flue; the gas flue of the desuperheating tower is connected with the smoke inlet box into one unit. The boiler smoke gas disperses within the two towers for cooling, thereby improving the adaptability of a system to a load; the boiler smoke gas particularly can be cooled down urgently to a set temperature in the desuperheating tower; and the reaction tower can be humidified only by evaporation with a little water to complete a deacidifying reaction and remove dioxin, thereby avoiding the disadvantages of scale formation on the tower wall of the prior reaction tower and bag burning of the bag-type dust remover, guaranteeing a sustaining and stable smoke purification process and having the advantages of good purification effect and low energy consumption.

The invention discloses a dedusting-denitrating integrated device which comprises a flue gas channel, a mixed flue gas inlet and a shell consisting of an outer cylinder and an inner cylinder, and a ash hopper at the bottom of the shell, wherein the inner cylinder is mainly used for dedusting and ammonia mixing, the outer cylinder is mainly used for containing a denitrating catalyst bed, the crosssection of the flue gas channel is ring-shaped, and ammonia spray grilles are distributed in the flue gas channel in a radial manner so that the required NH3-to-NO ratio can be reached more easily. The device provided by the invention can be used for dedusting before carrying out denitrating, a catalyst can be effectively prevented from being worn, poisoned and blocked and the service life of thecatalyst can be prolonged. Under the condition that the length of the device is not increased, the ammonia mixing time is prolonged and ammonia mixing can be performed fully; heat absorbing spiral plates and cooling rectifier plates are arranged in both the inner cylinder and the outer cylinder to share heat of flue gas at the inlet, and therefore the heat loss of flue gas can be reduced, the denitrating efficiency can be improved and the catalyst is prevented from being sintered and inactivated under the action of superheated flue gas.

The invention relates to a method and a device for dissolving gas in a liquid-phase circulating hydrodesulfurization system, and provides a method for dissolving gas in a liquid-phase circulating hydrodesulfurization system, which comprises the following steps of: introducing new hydrogen, raw oil and circulating saturated oil refluxed from a hydrogenation reactor into a gas-liquid mixing pump, and fully mixing under the strong turbulence state; introducing the mixed materials into a gas-liquid separation tank, collecting big bubbles, removing the big bubbles, and introducing the mixed materials into the hydrogenation reactor for hydrogenation; and introducing the circulating saturated oil refluxed from the hydrogenation reactor into the gas-liquid mixing pump again, mixing with the raw oil and the new hydrogen entering the gas-liquid mixing pump, and introducing the mixture into the hydrogenation reactor again. The invention also provides a device for dissolving gas in the liquid-phase circulating hydrodesulfurization system.

The invention relates to a forced internal and external transfer type composite ring spinning method for a filament, which belongs to the technical field of textile processing. The technical scheme disclosed by the invention is that: a first yarn guide trumpet and a second yarn guide trumpet are adopted to do reversed reciprocating motion so as to respectively drive two short fibre rovings to do reversed reciprocating motion on each traction mechanism of a ring spinning frame; a forced yarn guide device feeds the filament into a front jaw in a reciprocating motion form, and is twisted with two short fibres output by a drafting system to form the yarn so as to realize full internal and external transferring of the filament in the finally produced composite yarn; and the filament in the composite yarn body and the fibres are naturally and uniformly mixed and tightly adhered so as to eliminate the relative sliding between the filament and the short fibres in subsequent processing of the yarn. According to the forced internal and external transfer type composite ring spinning method for the filament disclosed by the invention, electric fiber splitting and extra power are not related in actual production, the cost is low, a hidden trouble of igniting of static sparks in production can not be generated, simultaneously the device is simply reformed, and the operation and the use are convenient.

A powdery material mixing and feeding device is configured to mix at least two types of powdery materials and to feed a compression-molding machine with the mixed powdery materials. The powdery material mixing and feeding device includes a first mixer configured to rotate about a substantially vertical shaft and to mix the powdery materials, and a reservoir configured to reserve at least a part of the powdery materials, and a second mixer configured to rotate about a substantially horizontal shaft and to mix the powdery materials.

The invention discloses a system for deep treatment of coking wastewater by means of catalytic ozonation-ceramic membrane filtration, mainly consisting of an ozone generator, an ozone oxidation reactor, a booster pump, a ceramic membrane component, a gas-liquid separator, a tail gas absorbing device, a wastewater reflowing pump, a catalyst reflowing pump, a catalyst adding pump, a catalyst outflowing groove, a catalyst adding groove and corresponding pipe fittings, valves and instruments. According to the system, the application of a powder catalyst in a dynamic reactor can be realized due tothe combination of the catalytic ozonation and the ceramic membrane separation; the ozonation and the catalytic ozonation can be guaranteed to be carried out in a single reactor in a segmental way due to the convection current of the reflowing wastewater and the catalyst slurry and the impact of upcurrent; the mass transfer resistance when the ozonation and the catalytic ozonation are independently used can be reduced; the use ratio of hydroxyl free radical and the removal rate of organic matters can be improved; the aims, such as the COD (chemical oxygen demand), the chroma and the turbidityof the deeply-treated coking wastewater, can be achieved; and the problems that the activity is suddenly reduced when the powder catalyst is formed into particulates, the running needs to be suspended when the mass transfer resistance is increased due to the use of the particulate catalyst and the particulate catalyst is changed and the like can be solved.

The invention discloses an energy-saving and emission-reducing exhaust gas desulfurization tower. The energy-saving and emission-reducing exhaust gas desulfurization tower comprises a tower body, a demisting tank and a waste liquid treatment tank, wherein the demisting tank is fixedly connected to the upper end of the tower body, the waste liquid treatment tank is fixedly connected to the lower end of the tower body, a gas inlet pipe is arranged on the side wall close to the lower end of the tower body, a liquid inlet pipe is arranged on the side wall close to the upper end of the tower body,one end of the liquid inlet pipe penetrates through the tower body and extends inside the tower body, a spraying device communicated with the liquid inlet pipe is arranged inside the tower body, a gasdispersing mechanism is rotatably connected with the internal bottom of the tower body, the upper end of the gas dispersing mechanism is fixedly connected with the spraying device, the lower end of the tower body is fixedly connected with a rotating motor used for driving the gas dispersing mechanism, and a gas outlet is formed in the upper end of the demisting tank. According to the energy-saving and emission-reducing exhaust gas desulfurization tower, the structure is compact, the thorough mixing between exhaust gases and a desulfurization solution is improved, and thus, the desulfurizationeffect of the exhaust gases is improved; desulfurized waste liquid is further treated, so that the discharge of harmful liquid is avoided.

The invention relates to a method for removing fine particles and heavy metals in coal fume. The method is an electric precipitator coupling charging absorbing agglomeration technology. The method comprises the steps of: pre-charging (positive charge) on an adsorbent by a charging spray gun, and spraying the adsorbent to an area between two adjacent electric fields of the electric precipitator; by a Coulomb agglomeration action between a positively charged absorbent particle and a fine particle which is negatively charged by last electric field and is not captured, and an absorption action of the charged absorbent, capturing a plurality of pollutants including fine particles, heavy metals and condensable substances, onto the absorbent to form larger particles; and efficiently capturing the larger particles by the electric field at the back of the electric precipitator, so as to achieve the purpose of synergistically removing a plurality of pollutants in smoke. Compared with prior art, the method of removing fine particles and heavy metals in coal fume has the advantages of high efficiency and low cost and the like.

A heating heat exchanger includes plural tubes which are arranged in parallel and through which a thermal fluid for heating air flows, and plural fins which are joined to the tubes. The tubes and the fins are arranged to form plural heating parts equal to or more than three in which air is heated, and at least two bypass passages each of which is provided between adjacent heating parts, through which the air passes without exchanging heat with the thermal fluid. Furthermore, first and second tank parts for distributing the thermal fluid to and for collecting the thermal fluid from the tubes are arranged at two longitudinal ends of the tubes and extend to across an area where the bypass passages and the heating parts are provided. In addition, the bypass passages and the heating parts are arranged in an arrangement direction perpendicular to an air flow direction.

The invention provides lithium battery cathode material mixing equipment capable of preventing dust flying and removing impurities. The equipment comprises a tank body and an upper cover, a mixing cavity is formed inside the tank body, an auxiliary feeding pipe and a filtering device are arranged on the upper cover, the filtering device is composed of an exhausting pipe and a filtering tank, and a feeding device is arranged on the side wall of the top of the tank body and composed of a feeding pipe, a feeding screw conveyor, a feeding motor and a material storing tank; a material guiding device, an impurity removing device and a stirring device, the material guiding device is composed of a material guiding motor, a rotating shaft and a material guiding disc, the impurity removing device is composed of multiple concentric electromagnetic rings, and the stirring device is composed of a stirring motor, a stirring shaft and stirring pieces. Raw material dust is prevented from directly causing dust pollution through the filtering device, and recycling of the raw material dust is facilitated, so that unqualified products caused by unbalanced proportion is prevented; mixing degree of raw materials is increased through the stirring device, so that the raw materials are mixed more uniformly.

A biomass cracking and liquefying system is disclosed. The Z-shaped reaction pipe has a top end connected respectively with the feeder of biomass and the heat carrier outlet of the heat carrier heater, and a bottom end connected to the separator whose top end is connected to cooling unit and whose bottom end has residual biomass outlet and heat carrier outlet. The input of gas mixer is connected respectively to the gas outlet of biomass gasifier and the thermocomposed gas outlet of cooling unit, and its output is connected to gas burner communicated to the heater of heat carrier. It features that the combustible gas generated in gasifying and liquefying biomass is used as the energy source for thermodecomposing and liquefying, so having low cost.

The invention discloses a method for improving the dehydrating property of the sludge and equipment thereof. The method is to adopt an inner embedded type electromagnetic swirling wing sludge conditioner arranged in the sludge pipe or an external magnet-rotary sludge conditioner arranged on the sludge pipe to quench and temper the sludge, so as to achieve the purpose of sludge specific resistance reduction and sludge dehydrating property improvement. After the method and the equipment are implemented, the water content of the final dewatered sludge (mud cake) can reach 70-80% which reduces by 2-15% comparing to the technology without conditioner treatment. The work efficiency of the dewaterer is greatly improved, the energy consumption of the dewaterer is reduced by 5-40% and the reagent dosing is reduced by 5-100%. The method and equipment of the invention are not only suitable for the transformation of the old equipment in the prior sludge treatment, but also suitable for the establishment of the new equipment.

A preparation method of cyclohexanone from catalytic oxidation of cyclohexanol is characterized by contacting reactants containing cyclohexanol and hydrogen peroxide with a catalyst at a temperature of 0-180 DEG C and under the pressure of 0.1-3.0MPa, wherein the molar ratio of cyclohexanol to hydrogen peroxide is 1:(0.1 to 10.0), the catalyst is a titanium silicalite molecular sieve based catalyst, and the mass ratio of cyclohexanol and the catalyst is (1-200):1. The method has no special requirements on equipment and the production process is simple, is easy to control and is beneficial to industrial production and application. The invention has the advantages of high cyclohexanol conversion rate, good selectivity, long time stable operation.