800 results about "Process engineering" patented technology

A large convoluted space, such as a multi-story concourse of an airport is isolated and a chemical or biological agent in the concourse is deactivated. A plurality of deactivation gas sources (100) introduce a deactivation gas at multiple points along the concourse. Fans (66, 106) circulate the deactivation gas, sensors (110) sense concentrations of the deactivation gas at numerous points around the concourse and exhaust fans (66) exhaust air, spent deactivation gas, and some deactivation gas. A control processor (84) controls the generators, the circulation fans, and the exhaust fans in accordance with the gas concentrations sensed by the sensors to increase and decrease deactivation gas concentration in selected subregions of the concourse by increasing or decreasing generation, increasing or decreasing exhausting, or altering flow patterns among subregions.

The invention relates to a washing machine and a washing method. The washing machine comprises an inner barrel, an outer barrel and solid particles as washing medium. The inner barrel is rotatably arranged on the inner side of the outer barrel, an air channel is arranged in the washing machine, the air channel is communicated with the inner barrel to form an air flowing path, an air thruster is arranged on the air flowing path, and a baffle with a plurality of open holes only enabling the particles to pass through is arranged on the position of an air flowing outlet inside the inner barrel. The air flowing path is formed in the air channel and the inner barrel by utilizing the air thruster, the particles are pushed to flow along the direction of the flowing of air, and therefore throwing-in, separating and recovering of the particles are achieved, and not only is the process of the separating and the recovering of the particles simplified, but also a washing process is simplified.

The invention relates to a regulation and control testing device for preparation of bio oil through quick thermal cracking of biomass and belongs to the technical field of biomass recycling and energy equipment. The device comprises a fluidized bed pyrolysis reactor, a fixed bed thermal cracking reactor, two multi-path sampling valves, two gas chromatographs, a three-level condenser, three oil tanks and other parts. The device has the testing functions of quick pyrolysis, catalytic pyrolysis, on-line analysis and regulation and control, grading controlled condensation and the like, has a compact structure, works stably, can perform full component analysis and catalyst evaluation of pyrolysis gas, can reliably perform quantitative analysis and can effectively perform regulation and controltests of the preparation of the bio oil through quick thermal cracking of the biomass.

The invention relates to a carbon dioxide drive oil reservoir production method capable of realizing stage control on fluidity. The method is characterized in that for an oil reservoir formed by homogeneous cores and heterogeneous cores with the permeability ratio not exceeding 30, a water and gas alternate injection method is adopted for production; for an oil reservoir formed by heterogeneous cores with the permeability ratio in a range of 30 to 100, a carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when gas channeling occurs in a production well, small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging; for an oil reservoir formed by heterogeneous cores with the permeability ratio being higher than 100, the carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when the gas channeling occurs in the production well for the first time, elastic strong glue is injected into the formation for sealing and plugging; and when the gas channeling occurs in the production well again, the small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging.

The invention discloses a continuous preparation technology of high-purity low-viscosity dimethicone. The continuous preparation technology comprises the following steps that 1, a mixture of methylcyclosiloxane and an end-capping reagent is orderly subjected to liquid nitrogen freezing dehydration and deep dehydration until the water content of the mixture is less than 300ppb; 2, the treated mixture is subjected to adsorption filtration, nanofiltration membrane filtration and pre-heating, then is fed into a fluidized bed with a catalyst and undergoes a catalytic reaction; and 3, reaction products are subjected to adsorption filtration, nanofiltration membrane filtration and a low-boiling-point substance removal process so that a low-boiling-point substance is removed and the high-purity low-viscosity dimethicone is obtained. The high-purity low-viscosity dimethicone obtained by the continuous preparation technology has the advantages of low ion content, low hydroxyl content and low solid content. The continuous preparation technology has a raw material utilization rate of 100%, realizes zero discharge, is an environmentally friendly green technology and is suitable for low-viscosity dimethicone production.

Equipment and a process to produce biofuel by fast pyrolysis of organic material, comprising a system of three interconnected serial fluidized bed reactors: a fast pyrolysis reactor located inside another reactor wherein charcoal is burned; a combustion reactor that burns the charcoal generated in the fast pyrolysis reactor; and a preheating reactor to preheat inert particulate material. The equipment also includes a pneumatic recycling system for inert particulate material.

The invention relates to a cooking method and system based on a cooking model, and the system comprises an electric heating cooking appliance. The electric heating cooking appliance is provided with a central controller. The electric heating cooking appliance is at least correlated with a control step of main variable parameters. The main variable parameters comprise the identity characteristics of a main food material, the amount of the main food material and a cooking personalized target. The cooking personalized target comprises the type of a food which a user wants to get and/or the personalized demand content of taste. The system obtains the main variable parameters through a man-machine interaction interface, and generates a specific dynamic cooking model according to the main variable parameters. The dynamic cooking model also comprises the control steps of a cooking pressure, cooking power, cooking temperature or cooking time, which are all configured to be corresponding to the main variable parameters. A central controller carries out the cooking control of the electric heating cooking appliance according to the steps determined by the dynamic cooking model. Therefore, the personalized demand of a user is taken as the center for setting a control program and steps, thereby achieving the active dynamic intelligentization.

The invention discloses a black tea production process which comprises the working procedures of fresh leaf grading, withering, rolling, deblocking, straightening through throwing, fermentation, baking, primary aroma raising, storage, cellaring fermentation, secondary aroma raising, and the like. Through the implementation of the black tea production process disclosed by the invention, the full fermentation of the black tea is ensured, and the aroma raising is implemented adequately, so that the black tea is more full-bodied and purer, and the quality of the black tea is improved.

The invention relates to a reactor of a Fischer-Tropsch synthesis slurry bed, and the reactor comprises a reaction zone, a reactor inlet, a reactor outlet and a diameter extension section arranged at the upper part of the slurry bed, and the diameter extension section includes a settling section, a washing section and a defoaming section. The invention also provides a Fischer-Tropsch synthesis process, which is characterized in the use of the slurry bed reactor. The slurry bed reactor and the process can obviously reduce the solid content in products, and can also reduce the particle size of products.

The invention discloses a biomass pyrolysis system and a biomass pyrolysis method. The biomass pyrolysis system comprises a pyrolysis furnace, a combustion lift pipe, a separation device, a biochar heat carrier pipeline and a smoke flue. According to the biomass pyrolysis system, efficient biomass pyrolysis is realized through simultaneous heating by the aid of internal biochar heat carriers and external smoke.

The invention provides a heat accumulating type heat exchanger for pipeless waste heat utilization in a cement manufacturing process. The heat exchanger comprises a heat accumulating material, a high-temperature flue gas inlet, a high-temperature flue gas outlet, a low temperature working medium inlet, a low temperature working medium outlet and a casing, wherein the heat accumulating material is arranged in the casing; the heat accumulating material is a solid heat accumulating material; a plurality of communicated first holes and a plurality of second holes of heat accumulating material are formed in the heat accumulating material; the first holes and the second hole are intercrossed but not communicated. According to the heat accumulating type heat exchanger, residual heat in the cement manufacture is fully utilized, the heat exchange efficiency is maximized, the energy is saved and the goals of environmental protection and energy conservation are achieved.

The invention relates to a system for urban sludge flue gas drying middle-temperature pyrolysis carboization. The system comprises a hot air device and a feed storage metering device, a low-temperature flue gas drying device, a bag-type dust remover, a middle-temperature pyrolysis carboization device, a flue gas waste heat recovery device and a tail gas purification and deodorization device which are connected in sequence, and the hot air device supplies hot air to the low-temperature flue gas drying device and the middle-temperature pyrolysis carboization device. According to the system for urban sludge flue gas drying middle-temperature pyrolysis carboization, by means of optimal combination of the system and energy gradient utilization, the energy consumption of the system is reduced, and the thermal efficiency is effectively improved; by means of middle-temperature pyrolysis, the problem that coking and blocking are caused by local overheating of the sludge is solved, and the reliability of the system is improved. The system adopts a low-temperature flue gas drying technology and serves as front section sludge drying core equipment, the atomizing drying efficiency is high, and the time is short; a principle of combining the drying section with a spouted bed and a fluidized bed can effectively control the particle size of dried discharging materials to be 2-4 mm, and the subsequent carbonization efficiency is effectively improved.

A method of operating a furnace having process tubes and multiple burners where it is desired to conform the temperatures of the process tubes to selected target temperature criterion. The present method provides a systematic and quantitative approach to determine how to adjust burner flow rates to result in desired tube wall temperatures, for example to minimize the temperature deviation between tube wall temperatures at a predetermined elevation in the furnace.

The invention relates to a loop reaction device in a slurry bed, application and a method for producing hydrogen peroxide. The loop reaction device comprises a slurry bed reactor and a solid-liquid separator, wherein the upper part of the slurry bed reactor is communicated with the upper part of the solid-liquid separator, and the bottom of the slurry bed reactor is communicated with the bottom of the solid-liquid separator; and a coaxial inner sleeve is arranged in the slurry bed reactor, an outer sleeve is arranged between the inner sleeve and the outer wall of the slurry bed reactor at the upper part of the slurry bed reactor, a raw material inlet and a fluid distributor are arranged in the inner sleeve and at the bottom, a gas outlet is formed in the top of the slurry bed reactor, a filtration component is arranged in the solid-liquid separator, and a clear liquid outlet is formed in the wall of the solid-liquid separator via the filtration component. According to a hydrogenation method for producing hydrogen peroxide by an anthraquinone method with the adoption of the slurry bed loop reactor, the gas-liquid-solid three-phase separation efficiency is high, the excess local liquid holdup of a catalyst is avoided, the possibility of excessive hydrogenation is reduced, the hydrogenation efficiency is further effectively improved and a hydrogen peroxide product with relatively high concentration can be obtained.

The invention discloses a carbonization cleaning process of a carbonizer for producing heavy soda ash, particularly aiming at a carbonization cleaning process of an outside cool tower for producing heavy soda ash, characterized by: using marshalling operation, using one tower for cleaning, using the other three towers for producing soda, and washing the towers with an ammonia mother liquor II by turns; sending the ammonia mother liquor II in a cleaning tower, letting a mixed gas of carbon dioxide and nitrogen in the cleaning tower, dissolving sodium bicarbonate and ammonium bicarbonate and other scabs in the tower with the ammonia mother liquor II, and simultaneously reacting ammonia in the ammonia mother liquor II with carbon dioxide to achieve the purposes of carbon dioxide absorption and then precarbonization. According to the invention, because of no need of letting the hot ammonia mother liquor II be subject to cooling and then enter in the soda production tower, the carbonization conversion degree is effectively raised, and the carbonization cleaning process disclosed herein is beneficial for cleaning the carbonizer.

An arrangement is disclosed of a gas delivery control system (1) and one or more appliances (AP) including a central heating installation. The one or more appliances are arranged for generating a request signal (S1) indicative for a requested supply of gas by at least one of the appliances. The gas delivery control system comprises, —a controllable gas valve (10) having an input (12) to be coupled to a gas supply (GS) via a conduit (22) and having an output (14), —a control device (30) for controlling the controllable valve, wherein the control device controls the controllable valve in accordance with a value of the request signal of the one or more appliances coupled to the output of the valve via a conduit, —a gas pressure sensor (40) for determining whether the gas pressure in the conduit has a value lower than a pressure reference value, —a reference module (50) for determining whether a predetermined time interval has lapsed since a closure of the controllable gas valve, —an error signaling module (60) for issuing an error signal (Error) if it is detected before a lapse of the predetermined time interval that the gas pressure is lower than the pressure reference value.

A cleaning liquid is contained in a cleaning tank (3), and an object (2) to be cleaned is immersed in the cleaning liquid. A pressure reducing means (5) reduces the pressure in the cleaning tank (3) by sucking gas in the cleaning tank (3) and discharging the gas to the outside. A heating means (7) heats the cleaning liquid within the cleaning tank (3). A gas supply means (6) introduces gas into the cleaning liquid within the cleaning tank (3) from a position below the object (2) to be cleaned. After the cleaning liquid is heated to a preset temperature by the heating means (7), the pressure within the cleaning tank (3) is reduced by the pressure reducing means (5) to boil the cleaning liquid, and the gas is introduced into the cleaning liquid by the gas supply means (6) during the boiling. By this, the cleaning liquid is fiercely boiled to increase the effect of cleaning of the object (2) to be cleaned.

The invention discloses a production method for cobaltous sulfate heptahydrate. The production method includes the following steps that 1, a solvating-out agent is added to a crystallization tank containing a cobaltous sulfate solution, cobaltous sulfate is subjected to solvent-out crystallization, and the separated crystal nucleates and grows; 2, when the concentration of cobalt in the cobaltous sulfate solution in the crystallization tank is smaller than 10 g/L, the solvating-out agent is stopped being added, and solid-liquid separation is conducted; 3, obtained solids are dried and screened, screen underflow serves as seed crystals, and screen overflow is cobaltous sulfate heptahydrate; 4, the cobaltous sulfate solution in the crystallization tank is distilled, distillate serves as the solvating-out agent to be returned to the crystallization step, and raffinate is returned to a wet smelting workshop. The primary crystallization rate of the method reaches up to 99.6% or above, the produced cobaltous sulfate heptahydrate product is large in particle and has glossiness, an evaporation and concentration procedure is not needed, steam consumption is reduced, formation of water insoluble matter in the evaporation and concentration procedure is avoided, and the water insoluble matter in the product is greatly reduced; acid and oil in cobalt liquor before crystallization are diluted by the solvating-out agent in mother liquor, and the product is high in pH and low in oil content; the distillation recovery rate of the solvating-out agent is larger than 98%, and the solvating-out agent can be recycled after being distilled.

The present invention provides a biomass gasification furnace frees of crash, humidity resistant, having no tar, anti-burn-out. It is a flammable gas updaught household gasification furnace converted by the luminous burning pyrolytic reaction utilizing eagro-sylvo-pastoral waste biomass. The invention can easily compress pudgy biomass and pack in column bale fuel via setting opening feed inlet, arranging biomass binder, convenient to put in the furnace, needless being crashed; vapor continuously steamed is chiling and bead slides in the water tank along the inclined edge and exhaust accompanied by return tube via setting tapered condensed water collecting furnace lid, this resolving the problem of unburning when the water content of the biomass is higher; the residual tar of the high temperature fuel gas is further cracked via setting fuel gas guide port in the burning high temperature region and importing in the setted high temperature fuel gas detention timelag loop; The effects of unbiassed burning, non carbon, timely blanking and no empty burning are achieved by setting ring rotary inlet device and axial rotary driving dust blanking in the burning region.

A method of operating a life support system for an aircraft, the system including a plurality of oxygen supply apparatus, each of which in use is operable to supply product gas, which may be pure oxygen or oxygen enriched gas, to a breathing gas supply apparatus, at least one of the oxygen supply apparatus being a main oxygen supply apparatus and the remainder of the oxygen supply apparatus being auxiliary oxygen supply apparatus, the main oxygen supply apparatus being operable independently of the auxiliary oxygen supply apparatus, characterized in that the method includes operating the main oxygen supply apparatus and supplying product gas to each of the auxiliary oxygen supply apparatus.

The invention discloses an automatic traditional Chinese medicine dispensing system which comprises a plurality of automatic dispensing cabinets which are arranged side by side, wherein each automatic dispensing cabinet comprises a spiral discharging mechanism set and a belt type discharging mechanism set; an output mechanism which is arranged below the spiral type discharging mechanism sets and the belt type discharging mechanism sets and used for receiving medicinal materials output after being weighed by the spiral type discharging mechanism sets and the belt type discharging mechanism sets; and a medicine supplementing mechanism which comprises a feeding trolley installed at the tops of the automatic dispensing cabinets and capable of autonomously moving in the arrangement direction of the automatic dispensing cabinets and in the direction perpendicular to the arrangement direction, wherein the feeding trolley is configured to be capable of supplementing materials for the spiral discharging mechanism sets and the belt type discharging mechanism sets. According to the automatic traditional Chinese medicine dispensing system, the medicinal materials can be automatically discharged and supplemented, so that the dispensing efficiency is improved; and besides, the automatic dispensing cabinets are used for discharging the medicinal materials in a manner of combining the spiral discharging mechanism sets and the belt type discharging mechanism sets, so that the automatic dispensing cabinets are suitable for different types of medicinal materials, and the universality is improved.

The invention discloses an automated flue gas collection device and an analysis method. The flue gas collection device comprises an electrostatic collection pipe, a flue gas absorbing machine electrostatic collection pipe connector, an electrostatic collection pipe loading mechanism, a handling manipulator, a spraying device and a cleaning and drying device, wherein the electrostatic collection pipe loading mechanism is provided with a lifting device; a pneumatic claw is installed at the front end of the handling manipulator; a positioning lifting device and a positioning rotating device are installed at the bottom of the handling manipulator, drive the handling manipulator to perform rotating and lifting positioning motion to be matched with the pneumatic claw to realize the handling of the electrostatic collection pipe among the electrostatic collection pipe loading mechanism, the spraying device and the cleaning and drying device. The automated flue gas collection device can fully automatically realize the flue gas collection and analysis experiment processes, can ensure that a flue gas example from not being interfered by the external environment and other constituents in the air, and efficiently and accurately accomplishes the flue gas collection, analysis and detection processes.

A phase change heat storage device and method utilizing engine waste gas waste heat relates to automobile waste gas and waste heat utilization. The device comprises a warm fluid pipeline, a heat exchange rib, a cool fluid pipeline and a sleeve. The warm fluid pipeline is connected with an engine exhaust pipe, the heat exchange rib is fixedly connected onto the outside of the warm fluid pipeline, a clamping groove is formed in the edge of the heat exchange rib, the cool fluid pipeline is clamped in the clamping groove, the sleeve is arranged on the outside of the heat exchange rib and the cool fluid pipeline, and a phase change material is arranged between the hot fluid pipeline and the sleeve. The device is simple in structure, small in size and convenient to arrange on an automobile. By means of the method, waste gas waste heat generated in the automobile running process is first utilized to enable the phase change heat storage device to store heat. During the cool starting or warming up process, cool fluid flowing through the phase change heat storage device is heated to preheat the engine, and fuel economy in the automobile cool starting and warming up process is improved by heating cooling water in the engine.