54results about How to "Remove help" patented technology

The invention relates to a method for coagulating coal-bed gas produced water, which is realized in a way that: coal-bed gas produced water is coagulated by combining a chemical compounded from an inorganic coagulant and an organic flocculant with a coagulation assistant, or combining an inorganic coagulant, an organic flocculant and a coagulation assistant; a pretreatment pool is arranged at the outlet of the coal-bed gas produced water, a coagulation assistant dissolving box is arranged at the water inlet of the pretreatment pool, and the amount of the coagulation assistant is controlled by using a measuring pump or flowmeter; and the coal-bed gas produced water is firstly conditioned by the coagulation assistant, and then treated by the chemical compounded from the inorganic coagulant and the organic flocculant, or treated by combining the inorganic coagulant and organic flocculant. The amounts of the compounded or combined inorganic coagulant and organic flocculant are controlled by using the measuring pump or flowmeter, thereby effectively removing suspended matters in the coal-bed gas produced water, being beneficial to removing oil, multiple soluble ions, other organic substances and the like, reducing the consumption of chemicals and relieving the treatment load of the subsequent technique, so that the treated produced water can be discharged under the standard or can be conveniently recycled.

The invention provides a method for simultaneously desulfurizing and denitrating flue gas. The method comprises the step that: a large number of active materials produced by the flue gas under ultraviolet radiation are reacted with SO2 and NOx in the flue gas so as to produce stable sulfuric acid and nitric acid which are important industrial products. The two products can be collected by an acid mist removing device, or ammonia can be introduced into the two products to produce ammonium sulfate and ammonium nitrate which are important chemical fertilizers, or calcium carbonate is sprayed into the two products to produce calcium sulfate and calcium nitrate; and then, SO2 and NOx in the flue gas are removed from the flue gas to be converted into the products with the industrial or agricultural value. The method for simultaneously desulfurizing and denitrating the flue gas is suitable for desulfurizing and denitrating the flue gas of large newly-built boilers, or reforming and applying built burning equipment, and can realize the effect of simultaneously removing SO2 and NOx.

The invention discloses a disposing method of organic waste water and residual mud reducing method in the dirty water disposing domain through biological technology, which is characterized by the following: the effluent disposal technology contains first-grade physiochemical disposal, aerobic segment two-grade physiochemical disposal and mud separation of two sedimentation pools; the nourishing grade of aerobic segment is divided into the following four parts from junior to senior according to food chain: bacteria dispersing growing pool, protozoa growing pool, meteorology growing pool and large-scale micro-animal growing pool; the bacteria decompose organics and the protozoa, meteorology and large-scale micro-animal reduce mud quantity to assist to decompose organics. The invention can be applied in the urban effluent disposal and industrial effluent disposal, which reduces mud quantity.

The invention discloses an air cleaner. The air cleaner is characterized by comprising a plasma module and a water filter module. The plasma module comprises a discharge electrode which generates plasma through high voltage discharge. The water filter module comprises a humidifying plate and a water tank, wherein part of the humidifying plate is immersed in water and rotates, then air is taken into the water, and the functions of humidifying and filtering are achieved. By means of the air cleaner, the plasma generated through electric discharge is combined with the water filtering so that the humidified air can carry rich negative oxygen ions; the plasma can achieve the effects of sterilization and disinfection, effectively remove volatile organic compounds and allow dust particulate matter to be charged and accumulated, so that the water filtering efficiency is greatly improved, and the water changing period is prolonged.

The invention discloses an insulation oil vacuum adsorption regeneration comprehensive treatment system. The insulation oil vacuum adsorption regeneration comprehensive treatment system is characterized in that the output end of an oil inlet is communicated and connected with the input end of a primary filter; the output end of the primary filter is communicated and connected with the input end of a heater; the output end of the heater is communicated and connected with the input end of a vacuum separator; the gas output end of the vacuum separator is communicated and connected with the input end of a steam and water separator; the output end of the steam and water separator is communicated and connected with the input end of a Roots pump; the output end of the Roots pump is communicated and connected with the input end of a vacuum pump; the oil output end of the vacuum separator is connected with the input end of a fine filter; the output end of the fine filter is connected with the input ends of regeneration filters which are connected in parallel; the output end of each regeneration filter is communicated and connected with the lower input end of the fine filter; the output end of the fine filter is communicated and connected with an oil outlet. The insulation oil vacuum adsorption regeneration comprehensive treatment system has the advantages that the harmful matters of corrosive sulfur, dissolved copper, aged product and the like in the insulation oil can be removed, the site treatment efficiency of transformer oil is improved, and the safe and stable running of a transformer is powerfully guaranteed.

The invention discloses a method for preparing citrus dietary fiber, which comprises pretreatment, cooking, chemical modification, purification, homogenization and spray drying. The process steps of the invention cooperate with each other, the impurities can be removed at an early stage, and the yield of dietary fiber is improved by high temperature and high pressure strong acid steaming, in a middle stage, impurities such as undecomposed organic matter, larger-diameter cellulose, and acid-base salt are removed by filtering and alcohol precipitation, in a later stage, chemical modification andhomogenization improve the quality of dietary fiber, the water retention is improved, and the high-yield and high-quality dietary fiber can be obtained, the process design is reasonable, and the comprehensive cost is low.

The invention discloses an iron ore sintered biomass fuel and a preparation method and application thereof. The preparation method comprises the steps that biomass powder is mixed with iron selectingtailing slag-silica tailing slag mixed powder and then are pressed into biomass particles; and the biomass particles are placed in a protective atmosphere and then subjected to low-temperature pretreatment and high-temperature carbonization treatment in sequence to obtain high quality biomass fuel with heat value of 26-33MJ/kg, volatile content of 0.5-3%, specific surface area of 10-25m<2>/g, porosity of 15-25%, apparent density of 1.5-2.2g/cm<3>. According to the iron ore sintered biomass fuel, the combined effects of inert components SiO2 in ore slag to weaken the thermochemical reaction activity of the biomass fuel and iron oxides to promote the efficient cracking of volatiles are fully utilized, and can replace the use of biomass fuel of fossil fule with high proportions to achieve efficiently reducing the emission of SOx, NOx and CO2 from the source.

The invention relates to a roxburgh rose juicing system. The roxburgh rose juicing system comprises a thorn removing device, a rotary drum cleaning machine, a cleaning conveyor, a water tank, a hammercrusher, a distributor, a belt filter press, a vibrating filter, a buffer tank, a high-temperature sterilization device and a can filler which are sequentially connected. A plurality of thorn removing rods are arranged on the inner side wall of a rotary drum body of the thorn removing device, and a spirally arranged screw conveyor is arranged on the inner side wall of the rotary drum body; an inner screw conveyor is spirally arranged on the inner side wall surface of a cleaning rotary drum, a first spraying device extends into the cleaning rotary drum, a winnower is arranged at one end, closeto the hammer crusher, of the cleaning conveyor, and a winnower air outlet opposite to the material conveying direction of the cleaning conveyor is formed in the winnower. By the aid of the juicing system, thorns of roxburgh rose fruits are removed mechanically, the cleaning cleanliness before juicing is high, rot individuals mixed in the roxburgh rose fruits are removed, juicing materials are fed uniformly, the automation degree of the whole system is higher, roxburgh rose fruit juice with good quality and low impurity content can be obtained, and canned storage of the juice is realized.

The invention provides an electrostatic separation device and process for removing solid particles in catalytic cracking slurry oil and a slurry oil purification device, and relates to the technical field of slurry oil purification. The method comprises the following steps: uniformly distributing catalytic cracking slurry oil in a plurality of electrostatic fields through a raw material distributor for a purification treatment so as to remove solid particles in the catalytic cracking slurry oil. Electrostatic field polarization, coalescence, adsorption, sedimentation, feeding distribution, andelectrode plate combined application technologies are adopted, the catalyst solid ultrafine particles are deeply removed, the problem that solid ultrafine particles are difficult to remove through aconventional separation method is solved, and the solid particle removal efficiency is remarkably improved. The provided electrostatic separation device is simple in structure, convenient to operate and suitable for long-period operation.

A method of simultaneously cleaning inorganic and organic contaminants from semiconductor wafers and micro-etching the semiconductor wafers. After being cut or sliced from ingots, semiconductor wafers are contaminated with cutting fluid as well as metal and metal oxides from the saws used in the cutting process. Aqueous alkaline cleaning and micro-etching solutions containing alkaline compounds and mid-range alkoxylates are used to simultaneously clean and micro-etch the semiconductor wafers. The method provided includes the steps of a) providing semiconductor ingots; b) cutting the semiconductor ingots to form one piece or pieces of semiconductor wafers containing inorganic and organic contaminants; and c) applying an aqueous alkaline solution comprising one or more quaternary ammonium hydroxides, one or more alkali hydroxides and one or more mid-range alkoxylates in sufficient amounts to remove the contaminants and micro-etch the semiconductor wafers.

The invention relates to the field of semiconductor production, in particular to a tail gas treatment device. The tail gas treatment device comprises a water tank which is divided into a negative pressure cavity and a normal pressure cavity, and the negative pressure cavity is provided with an air inlet and a channel; a spray tower internally provided with a water spray port and an alkali liquor spray port, wherein the bottom of the spray tower is connected with the channel of the negative pressure cavity, an air outlet is formed in the top of the normal pressure cavity, a water outlet is formed in the bottom of the normal pressure cavity, the normal pressure cavity is connected with the spray tower through a venturi tube, and the venturi tube is used for conveying gas in the spray tower to the normal pressure cavity and exhausting the gas from the air outlet; and a variable-frequency fan used for conveying water in the normal pressure cavity into the venturi tube to form negative pressure. The tail gas treatment device is good in tail gas treatment effect, not prone to causing blockage and long in maintenance period, and the maintenance cost is reduced.

The invention belongs to the technical field of the coal chemical industry, and particularly relates to a method for removing pyridine base in mixed phenol. The method comprises the steps of: performing a first reaction of the mixed phenol and oxalic acid solution to obtain a first intermediate product; performing a second reaction of the first intermediate product and sulfuric acid solution to obtain a second intermediate product; performing a third reaction of the second intermediate product and potassium permanganate solution to obtain a third intermediate product; and after rectifying thethird intermediate product, obtaining the refined mixed phenol. According to the method, three substances of oxalic acid, sulfuric acid and potassium permanganate sufficiently take a synergistic effect and are mutually and progressively removed in a classified mode so as to obtain the refined mixed phenol; after rectification, purity of the refined mixed phenol can reach over 99.9%, and content ofthe pyridine base is smaller than 0.005%, so that quality of the product is improved; and the refined mixed phenol is stable in color and difficult to discolor. By the method, impurities in the mixedphenol, such as organic nitrogen, organic sulfur and the like, also can be removed. Moreover, the method is simple in production process, convenient to operate and easy to implement.

A method and system for cleaning a surface of a substrate after an etching operation includes determining a plurality of process parameters associated with the surface of the substrate. The process parameters define characteristics related to the surface of the substrate such as characteristics of the substrate surface to be cleaned, contaminants to be removed, features formed on the substrate and chemicals used in the fabrication operations. A plurality of application chemistries are identified based on the process parameters. The plurality of application chemistries includes a first application chemistry as an emulsion having a first immiscible liquid combined with a second immiscible liquid and solid particles distributed within the first immiscible liquid. The plurality of applicationchemistries including the first application chemistry are applied to the surface of the substrate such that the combined chemistries enhance the cleaning process by substantially removing the particulate and polymer residue contaminants from the surface of the substrate while preserving the characteristics of the features and of the low-k dielectric material through which the features are formed.

The invention provides a constructible SiCp/Al matrix composite and a preparation method thereof. The preparation method comprises the following steps of S1, mixing oxidized SiC grains and NiO2 powder, and then mixing the mixed oxidized SiC grains and NiO2 powder with a bonder, an antifoaming agent and a surfactant evenly to form a coating; S2, evenly mixing the coating with foam grains, conducting filtering through a screen, charging the mixed materials into a mold cavity and pressing into a precast block; S3, drying and solidifying the precast block, and conducting sintering on the precast block at 700-900 DEG C for 2-3 h to form the precast block; and S4, pouring molten aluminum alloy into the mold cavity, and charging the preheated precast block on the molten aluminum alloy; or, charging the preheated precast block into the mold cavity and then pouring molten aluminum alloy; and conducting preparation through the pressure infiltration method to obtain the constructible SiCp/Al matrix composite. Through NiO2 and SiO2 oxidation layers, the wettability of SiC and aluminum alloy is greatly improved. Polystyrene pre-foamed grains and hydrolyzed ethyl orthosilicate can construct a voidage controllable SiC grain skeleton.

The invention relates to a cutting and deburring dual-functional aluminum alloy cutting machine which comprises a rack and a cutting saw blade; the aluminum alloy cutting machine further comprises a deburring wheel and a U-shaped installation part, wherein the cutting saw blade and the deburring wheel are movably connected with the U-shaped installation part; the cutting saw blade is in drive connection with a cutting motor; the deburring wheel is in drive connection with a deburring motor; the cutting motor and the deburring motor are opposite in the directions of rotation; the thickness of the deburring wheel is 1.2-1.5 times that of the saw blade; the deburring wheel is a grinding wheel; the U-shaped installation part is in rail connection with the rack; the U-shaped installation part is provided with a handle. The cutting and deburring dual-functional aluminum alloy cutting machine has the benefits as follows: when aluminum section is cut, the deburring operation is carried out, so that the cutting processing efficiency is fully improved.

The invention relates to a device (5) and method for removing suspended-material particles, in particular fine and very fine particles, from a water flow containing suspended-material particles in a pressurized water line (3) of a hydroelectric power plant (2), wherein a tubular element (6) that forms a flow channel (7) is provided in the pressurized water line (3), wherein the flow channel (7) extends substantially in the axial direction of the pressurized water line (3), and a stationary swirl-generating device (11) is arranged in the flow channel (7) in order to generate a flow component of the water flow perpendicular to a main flow direction (9), and a separating device (13) for separating the suspended-material particles carried radially outward due to the centrifugal force effect is provided after the swirl-generating device (11) in the flow direction.