113results about How to "Easy to fluidize" patented technology

A system and process are provided for recovering and/or cleaning residual or waste petroleum products such as sludge accumulated within a storage tank or upon process equipment surfaces, or from inorganic materials such as sand or clay, and the like. The system and process include a negatively charged aqueous-based dispersion fluid, which is contacted with the petroleum product under controlled relatively high pressure and high shear conditions for fluidizing hydrocarbon molecules and for preventing such molecules from adherence to process equipment surfaces, or contaminants such as sand or clay. Additional mechanical separation as by subjecting the mixed petroleum product and dispersion fluid slurry to sonic vibration may also be employed. The thus-fluidized slurry of petroleum products, dispersion fluid, and inorganic materials can be separated by conventional techniques, as by settling and/or flotation, for further individual processing and/or re-use.

The invention relates to a special anticorrosion conductive powder coating for vertical shaft fluidized bed dip-coating. The special anticorrosion conductive powder coating is prepared from the following raw materials in parts by weight: 500-900 parts of film-forming resin and curing agent, 0-200 parts of glass flakes, 0-350 parts of filler, 15-50 parts of auxiliaries, 5-100 parts of conductive material and 1-5 parts of nanometer aluminum oxide or nano fumed silica. The powder coating has the characteristics of a high glass transition temperature, low specific gravity which is generally less than or equal to 1.1g/cm<3>, and easiness for fluidization; even though hundreds of tons of powder is added to a 20m deep well, the powder can be fluidized easily and uniformly; in case of too high specific gravity and difficult fluidization, the vertical shaft dip-coating method can not be utilized; the powder aims at a hot-dip coating construction process, and the film formed by the coating has surface conduction characteristics and high temperature water boiling resistance, and therefore, the coating is suitable for anti-corrosion coating of long linear workpieces such as mine mining anti-explosion gas pipelines, natural gas pipelines and liquefied gas pipelines; the coating is adaptive to the vertical shaft fluidized beds as deep as 20m, and still has good fluidity, which cannot be realized by common powders easily.

The present disclosure is directed to systems and methods for dry particle coating of cohesive powders, and to the dry coated particles/powders produced thereby. The present disclosure is further directed to systems and methods for dry coating of cohesive particles, particularly nanosized particles, to provide enhanced flowability and other advantageous physical and/or functional properties. The disclosed systems and methods offer downstream processing advantages, e.g., for purposes of subsequent fluidization, coating, granulation and/or other particle processing operations, and have applicability in wide ranging industries, including specifically paint-related applications, pharmaceutical applications, food-related applications, cosmetic applications, defense-related applications, electronics-related applications, toner and ink-related applications, and the like.

The invention discloses a non-woven cloth suspension filler which is prepared by the following constituents in parts by weight with the conventional method: 40-50 parts of polyethylene, 25-35 parts of polypropylene, 6-10 parts of carbon black, 3-7 parts of ferric oxalate, 4-6 parts of magnesium oxalate and 1-2 parts of antioxidant. The specific gravity of the non-woven cloth suspension filler is closed to that of water. No fixing support is required. The filler can suspend in the water in a pool with aeration stirring and is uniformly fluidized in the whole pool. The energy consumption is low, and the non-woven cloth suspension filler has a good prospect.

The invention discloses a composite pulverized coal destructive distillation device and method and relates to a pulverized coal destructive distillation device and method so as to solve the problem that a hot carrier and pulverized coal are not ideally mixed in a mixer in the conventional coal fluidization destructive distillation technology. According to the device, one end of a hot carrier vertical pipe is connected with a raising pipe reactor, and the other end of the hot carrier vertical pipe is connected with a charring device; and one end of the raising pipe reactor is introduced with dry gas, and the other end of the raising pipe reactor is communicated with a destructive distillation reactor. The method comprises the following steps: 1, mixing high-temperature semicoke and pulverized coal in the raising pipe reactor, and carrying out a destructive distillation reaction; 2, inputting one part of high-temperature semicoke in the charring device into the raising pipe reactor through the hot carrier vertical pipe, and allowing the other part of high-temperature semicoke to enter a semicoke cooler through a discharging vertical pipe so as to be discharged into a semicoke storage tank after cooling; 3, reacting oil gas and semicoke coke in the destructive distillation reactor; and 4, returning the semicoke fine powder back to the destructive distillation reactor, allowing the semicoke fine powder to enter the charring device to serve as partially combusted semicoke through a semicoke conveying pipe, and raising the temperature to become a hot carrier after combustion. The device and the method are used for destructive distillation of pulverized coalwith the particle size of less than or equal to 5mm.

The present invention relates to one kind o water processing functional suspended stuffing and its preparation technology, and the functional suspended stuffing is suitable for treatment of various kinds of waste water. Winged plates for stuffing, fixed connecting ring and middle connecting ring are made with polar plastic and connected to form an integral, and powdered functional water processing material is covered onto the surface of the winged plates via hot binding or adhesion with surface adhesive to constitute composite winged plates. The present invention has convenient making, great surface area, high water processing capacity and convenient maintenance with less back flushing needed.

The optical film with a pressure sensitive adhesive comprises an optical film including a polarizing plate, a first pressure sensitive adhesive layer provided on first main surface of the optical film, and a second pressure sensitive adhesive layer provided on second main surface of the optical film. The first pressure sensitive adhesive layer has a thickness of 30 μm or more. In the first pressure sensitive adhesive layer, a fluidity of a pressure sensitive adhesive at an end surface is lower than a fluidity of the pressure sensitive adhesive at an in-plane central part.

The invention discloses a fluidized bed capable of organizing ultrafine particles to be mixed in an orderly manner. The fluidized bed comprises a flow guiding pipe arranged in the middle of an outer cylinder, a grid-type baffle arranged in an annular area located between the flow guiding pipe and the outer cylinder, an air distribution plate arranged under the flow guiding pipe and the grid-type baffle, and a central jet pipe corresponding to the flow guiding pipe and arranged in the middle of the air distribution plate. The fluidized bed disclosed by the invention can organize the ultrafine fluidized bed particles to be mixed in the orderly manner, enhance circulating flow of the particles in the bed, improve gas-solid two-phase contact efficiency, and better improve fluidization of the ultrafine particles; and the fluidized bed has stable operation and is easy to maintain.

The present invention is a treatment method for water-rich aluminium hydroxide sludge. Water-rich aluminium hydroxide sludge is rolled into sheet, and then it is frozen in a multiple-process and multiple-section belt conveyer type freezer with freezing temperature of minus 30 to minus 10 deg.C for 30-60 min; it is dewatered in a normal temperature-water thawing tank, low-vacuum filtered or squeezed to obtain wet sludge cake; and it is dried in a multiple-partition hot-carrier fluidized bed with industrial waste gas at 70-90 deg.C for 30-60 min to obtain the dry aluminium hydroxide sludge product. The present invention has the features of easy operation, low power consumption, low cost and no pollution.

The invention discloses and relates to a ranking method of separation media in a boiling bed separator. The method comprises the steps that a whirlcone is arranged at the upper part of the boiling bed separator; during the regeneration, the separation media in a filtering bed layer of the boiling bed separator is in a complete fluidized state; the separation media upwards enters the whirlcone; after cyclone ranking, the separation media flows out from the whirlcone in a sequence from high specific gravity to low specific gravity; after the back flushing regeneration is completed, the separation media is continuously used for purifying process water generated in a MTO (Methanol To Olefin) process, wherein the filtering bed layer of the boiling bed separator is formed by multiple layers of different separation media; the separation media particle size distribution is downwards reduced layer by layer; the specific gravity of the separation media is downwards increased layer by layer.

A double-chamber fluidized bed sludge dryer comprises a distribution chamber, an air chamber, a drying chamber, a cyclone separator and the like. The double-chamber fluidized bed sludge dryer is mainly characterized in that the side end surface of the distribution chamber is connected with a wet sludge feeding pipe, a plurality of ball valves are arranged on the upper end surface of the distribution chamber, a plurality of sludge spraying nozzles are arranged on the lower end surface of the distribution chamber, the centers of the ball valves coincide with the centers of the sludge spraying nozzles in the vertical direction, the air chamber and the drying chamber are respectively divided into two corresponding sub-chambers, the first air sub-chamber is filled with 67%-75% of total air, and 67%-75% of the total heat exchange surface of a heater is formed in the first drying sub-chamber. Under the condition that the work of the dryer is not influenced, the sludge spraying nozzles blocked by sundries like braided straps mixed in sludge can be quickly unblocked. In addition, the double-chamber fluidized bed sludge dryer has the advantages that feeding is uniform, dry sludge particulates are uniform in water content, the energy consumption is low, the drying efficiency is high, and operation is reliable.

The invention relates to a dedusting and desulfurization fluid bed reactor with acoustomagnetic combined function, which belongs to the technical field of environment-friendly equipment. The invention solves the problems that the prior dedusting and desulfurization reactor has low dedusting and desulfurization efficiency and cannot radically treat the pollution of particle substances absorbed by the human body. In the dedusting and desulfurization fluid bed reactor with acoustomagnetic combined function, the lower part of the right side wall of a cylinder body is provided with a flue gas inlet, the upper part of the right side wall of the cylinder body is provided with a flue gas outlet, and a grid plate is fixedly arranged inside the cylinder body in the horizontal direction. A speaker is arranged on the bottom inside the cylinder body, and a sound wave output end of the speaker faces to the grid plate. The inside of the cylinder body is filled with magnetic bed materials which are distributed above the grid plate, magnetism generating spiral coils are wound on the outer wall of the cylinder body, the position of the magnetism generating spiral coils corresponds to that of the magnetic bed materials, and an atomizing spray head penetrates through the outer wall of the cylinder body and is hoisted above the magnetic bed materials in the cylinder body. The invention is applicable to various occasions for preventing and controlling the pollution of flue gas and the dedusting and the desulfurization of the flue gas.

The invention relates to a multi-doped sintering agent and the usage thereof. The multi-doped sintering agent consists of a main material and a core material, wherein the main material includes one or any combination of carbide slag, soda slug, quick lime or limestone; the core material includes mineralizer, salt-melting medium and coke slag bulking agent. The usage of the multi-doped sintering agent comprises the following steps: crushing, mixing and pulverizing each component of the multi-doped sintering agent; mixing the pulverized multi-doped sintering agent with coal to form a coal mixture; burning and calcining the coal mixture in a boiler; and cooling and collecting hydraulic binding material modified ash. The multi-doped sintering agent can reduce the carbon content of fly ash and reduce the coal consumption of the boiler and can achieve high-efficiency solid desulfurization. The hydraulic binding material active ash produced after the coal burning has wide purposes, thus achieving multiple purposes of one boiler and achieving good effects of fluidized-bed combustion boiler such as environment protection, energy conservation and high-efficiency waste utilization.

The invention provides a gas-solid fluidized bed reactor with high inflation rate, a method for realizing the high inflation rate of a fluidized bed and applications of the gas-solid fluidized bed reactor and the method. The reactor comprises a concentrated phase and a dilute phase, wherein the concentrated phase contains gas and solid particles, inflation rate of the concentrated phase is as highas 60%-85% and is remarkably higher than that of a common fluidized bed reactor, the solid particles are C<+> particles and comprise 50% or higher of Geldart C-type ultrafine powder and a small quantity of nano-particles, and part of the nano-particles are uniformly or non-uniformly attached to the particle surface of the Geldart C-type ultrafine powder in a single-particle or agglomerate form temporarily or permanently; or the C<+> particles at least comprise Geldart C-type ultrafine powder with a rough surface, and the rough surface of the Geldart C-type ultrafine powder is caused by irregular particle shape or micron-size bulges on the surface. The inflation rate of the concentrated phase in the reactor is quite high, the specific surface area of the particles is quite large, contact efficiency of gas-solid phases can be obviously improved, and gas-solid two-phase reaction and physical gas-solid contact process are facilitated.

The invention relates to a drying and cooling integrated device for an aromatic hydrocarbon adsorbent multi-chamber fluidized bed. The bottom of the fluidized bed is provided with a multi-hole sieve plate. Vertical baffles are arranged above the sieve plate and sequentially divide the fluidized bed into a dehydration chamber, a drying chamber, a cooling chamber and an unloading chamber in the automatic feeding opening direction. A saturated steam heating pipeline is arranged in the dehydration chamber, and tail gas, with low water content, exhausted from the drying chamber is used as carrier gas of the dehydration chamber so as to improve the system heat efficiency. According to the drying and cooling integrated device, dehydrating, drying, cooling and unloading of the aromatic hydrocarbon adsorbent are carried out in the same equipment, the process and the equipment are simplified to the maximum degree, the automation degree and the integration degree are high, and the functionality is high.

The invention relates to the technology field of combustion equipment, and discloses a stack gas desulfurization tower of a circulating fluid bed, which is used for smoke gas purification. The stack gas desulfurization tower comprises a purified smoke gas outlet, an atomizing water jet apparatus, recycling ash nozzles, a desulfurizer inlet, and a smoke gas inlet which are arranged on a tower body. The stack gas desulfurization tower is characterized in that functional air nozzles are arranged on the tower body and positioned under recycling ash nozzles; at least a wind-pressure desulfurizer jet apparatus is arranged on the tower body and positioned under the functional air nozzles; a plurality of Venturi nozzles are arranged inside a Venturi throat in the tower body; the wind-pressure desulfurizer jet apparatus has the structure that an air inlet pipe is provided, the desulfurizer inlet is arranged on the air inlet pipe, and a diffuser nozzle is arranged on the head end of the air inlet pipe, wherein, the head end of the air inlet pipe extends into the tower body; the recycling ash nozzles and the functional air nozzles are both a plurality of nozzles. The stack gas desulfurization tower has the advantages of reasonable structure, low investment, low running cost, reliable running, high efficiency, wide application range, etc.

A liquid heating appliance (120) has a relatively high power heating means for bringing liquid in the appliance to boiling and a relatively low power heating means to maintain it at boiling for a predetermined time thereafter. A first steam sensitive control (140) switches the appliance from high power to low power and a second steam sensitive control (142) switches the low power heating means off. Liquid entering the appliance may be treated by passing through a filter (116).

Process for the preparation of cement/mortar/concrete compositions or systems, (for simplicity hereafter “cement” compositions or systems), featuring an improved compressive strength Rc namely at 28 days and 90 days, containing at least a “carbonate-based filler”, comprising at least one step where the said at least one “carbonate-based filler” is mixed or blended with at least one aluminosiliceous material, and the obtained “fillers blend” is treated with an efficient treating amount of at least one treating agent consisting of or comprising superplastifier(s); PRODUCT comprising at least a “carbonate-based “filler”” as defined and at least an aluminosiliceous material, what provides a “fillers blend”; cement compositions, use of the said “fillers(s) blends” and cement composition; cement elements or cement products” obtained from the said “cements compositions”, such as construction or building blocks.