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694results about How to "Improve heat utilization" patented technology

Integral process for oil shale retorting oil refining and coal-char combustion power generation

The present invention discloses an oil shale carbonization oil refining, carbocoal burning electricity generating integrated technology. The present invention is characterized in that green ore oil shale is crushed into 0 to 15mm grains by a crusher, through that circulating fluid bed boiler circulating ash is used as a solid heat carrier, the mixture of the oil shale and the circulating ash is fed into a roller retort to form oil shale oil refining, carbocoal and the oil shale are mixed, fluidized and burned to generate electricity as a whole, separated non-condensation carbonization coal gas is fed into the circulating fluid bed boiler and the both are burned with the carbocoal and the oil shale together or is fed into a gas engine for direct-fired power generation; the carbon content of the clinker after burned on the circulating fluid bed is less than 2 percent, thus no further roasting is necessary, and the present invention can be directly used as building raw material; the thermal value of produced carbonization coal gas which can be directly used as fuel to feed into the boiler for burning is high, the quantity of heat released through burning can be transferred to the water through the heated surface of the boiler, the water is heated into a overheat steam to be used as out-supplied working substance and/or to be fed into a steam turbine for power and electricity generating. The present invention has the advantages that the comprehensive utilization degree is high, the cost is low, the technology is scientific and reasonable, etc.
Owner:NORTHEAST DIANLI UNIVERSITY +1

Multi-stage series membrane distillation strong brine desalting method and device

The invention relates to a method for treating strong brine by using multi-stage series membrane distillation. The method comprises three steps of: preheating before performing strong brine membrane distillation, performing membrane distillation and condensing distilled steam to obtain desalted water, and is characterized in that: during membrane distillation, 3 to 5 stages of membrane distillation units are adopted; a membrane component (a membrane area) of each stage of the membrane distillation unit is different according to an operating scale; and the membrane components are connected in series with one another. In the multi-stage membrane distillation unit mode for treating the strong brine, the strong brine distilled by the previous stage is directly used as material inlet liquid in the next stage; as the whole process is continuous, the temperature required by the process is low; the temperature of the strong brine of the previous stage of the membrane distillation unit meets the requirement on the water inlet temperature of the next stage of the membrane distillation, so that heat sources required by the later stages of membrane distillation are saved, and the heat utilization rate during membrane distillation is increased; the heat sources for heat exchange can be low-level heat sources, such as raw stream, solar energy, terrestrial heat, factory waste heat and the like, so that energy can be saved effectively; and the comprehensive cost of the membrane distillation method for treating the liquid is reduced.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1

Equipment and method for carrying out spray freezing and drying on inert particles

The invention relates to equipment for carrying out spray freezing and drying on inert particles, comprising a fluidizing system, an atomizing system, a freezing system and a heat exchange system, wherein the heat exchange system is connected to the fluidizing system by virtue of a gas pipeline. The invention also relates to a method for carrying out spray freezing and drying on the inert particles, comprising the following steps of: (1) adding an inert particle group; (2) introducing a refrigerant; (3) introducing low-temperature low-humidity fluidizing gas; (4) freezing and spray coating; (5) freezing and drying; and (6) separating powder. The equipment and process for carrying out spray freezing and drying on inert particles in the invention couple processes such as fluidizing, cold spray coating, drying and separating, thus atomizing, freezing, drying and separating can be completed in one equipment, enclosed action and continuous operation are realized, no pollution is produced to the environment, dried feed liquid foods and medicines can be dried into powder finished products in one step, and no secondary processing is required; and besides, the structure is simple, the operation is convenient, and the manufacturing cost of equipment is reduced.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Internal circulation external heating type gasification device

The invention discloses an internal circulation external heating type gasification device. The device comprises a central gasification chamber, an annular heating chamber, a peripheral gasification chamber, a residual carbon reflux chamber and the like. Biomass micron fuel enters the annular heating chamber and is efficiently burned, so that the required heat is provided for the central gasification chamber, the peripheral gasification chamber and the residual carbon reflux chamber. Cracking and gasification raw materials absorb the heat in the down-up movement process of the central gasification chamber to be cracked and gasified, and an initial cracking product then enters the peripheral gasification chamber and is further gasified; and residual carbon refluxes through the residual carbon reflux chamber and enters the central gasification chamber to carry out a water gas reaction with water vapor, so that medium-calorific-value gas of which the content of CO and the content of H2 are equal and CO and H2 account for about 80 percent of the total amount is obtained. In the device, an internal circulation external heating mode is used for gasification; and the device has the advantages of high heat utilization rate, heat transfer efficiency and gasification efficiency and the like, and the calorific value of gas is high. The internal circulation external heating type gasification device can be widely applied to the preparation of the gas by cracking and gasifying municipal organic refuse, agricultural and forest residues and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Multistage pulverized coal multiple-tube rotary low temperature dry distillation technology and system

The invention discloses a multistage pulverized coal multiple-tube rotary low temperature dry distillation technology and system. The multiple-tube rotary dry distillation machine multistage (two stages or more) series connection process is adopted to perform low temperature dry distillation on pulverized coal; a plurality of dry distillation tubes are arranged in the multiple-tube rotary dry distillation machine to disperse coal powder, a helical blade is arranged in each dry distillation tube to guide and disturb coal and reinforce the dry distillation effect and increase the dry distillation effective area, the technology has the advantages of large pulverized coal treatment capacity, large dry distillation gas treatment capacity, low tar and dust contents, high coal gas caloric value and the like; the chemical raw materials generated in the low temperature dry distillation process of bituminous coal and low-price pulverized coal can be recycled extremely, the comprehensive utilization rate of coal is increased; and semicoke powder and coal gas with high calorific value can be produced through the low temperature dry distillation of bituminous coal and low-price pulverized coal.
Owner:SHANDONG TIANLI DRYING TECH & EQUIP

Pelletizing and calcination method for vanadium-containing stone coal ash

InactiveCN101857915AUniform sizeEasy to control roasting timePulverized fuel ashAnthracite
The invention relates to a pelletizing and calcination method for vanadium-containing stone coal ash. The equipment adopted by the method includes a moving-bed calcinator, which comprises a vertical furnace body, a chimney, a clinker discharger and a fan. The method includes the following steps that: NaCl, CaF2 and CaCO3 are prepared into complex additive, vanadium-containing stone coal, the complex additive and anthracite or stone coal as fuel needed by calcination are mixed into mixture material, the mixture material is uniformly mixed, fine-ground and pelletized into raw pellets, the raw pellets are fed into the furnace body via a feeder on the top of the furnace body, meanwhile, the fan blows the air into the furnace body via the clinker discharger on the bottom of the furnace body, the raw pellets and the air are calcined and reversely flow under the internal temperature condition of 800 DEG C to 900 DEG C, the calcined material enters the clinker discharger and is discharged out of the furnace body via the clinker discharger, and after cooling, clinker for the leaching of V2O5 is produced; and after calcination, the air is exhausted out via the chimney on the top of the furnace body. The technique and the equipment adopted by the method are relatively simple, the heat utilization rate is high, the product quality is stable, and the production cost is low.
Owner:ZHEJIANG UNIV

Domestic waste incineration process based on mechanical biological joint pretreatment and system thereof

The invention relates to a domestic waste incineration treating process, in particular to a domestic waste incineration process based on mechanical biological joint pretreatment. The process comprises the following specific steps: 1) manual pre-sorting, in which large-size inert components easy to sort in domestic waste are sorted out; 2) mechanical pulverization, in which the components are pulverized into grain diameter of about between 30 and 70 mm; 3) the mechanical biological joint pretreatment, in which the domestic waste mechanically pulverized is subjected to microbial aerobic fermentation, in the fermentation process, reaction heat is generated, so that a domestic waste material pile is automatically heated to the temperature of between 50 and 60 DEG C, and simultaneously, the pretreatment is assisted with mechanical treatment for turning, piling and ventilating the material pile; 4) incineration, in which no auxiliary material is needed to add for incineration treatment; and 5) utilization of heat energy: residual heat is used for power generation or is supplied for the mechanical biological joint pretreatment. The domestic waste incineration process has the advantages that the process and a waste collection and transportation system form an urban domestic waste full-process management system so as to realize quantity reduction, recycling and harmlessness of the treatment of the domestic waste and meet the concept of cyclic economy and sustainable development.
Owner:DALIAN UNIV OF TECH +1

Asphalt pavement in-place hot recycling heating device

The invention discloses an asphalt pavement in-place hot recycling heating device. The asphalt pavement in-place hot recycling heating device comprises a traveling mechanism and a heating system used for heating an asphalt pavement, wherein the heating system comprises a hot air generator used for generating hot air and a heating chamber used for guiding the hot air to the asphalt pavement and then heating the asphalt pavement, the lower end of the heating chamber is open, the open end is buckled on the asphalt pavement to be closed, and the heating chamber and the hot air generator are communicated with each other through an air intake channel and an air return channel in a circulating manner. The asphalt pavement in-place hot recycling heating device provided by the invention can be used for recycling low-temperature hot air after heat energy transfer with the pavement, and compared with the prior art, the asphalt pavement in-place hot recycling heating device can improve the utilization ratio of heat energy, reduce the heat energy loss and environmental pollution, save energy, reduce the construction cost, and realize sufficient and effective heat energy transfer between the hot air and the asphalt pavement so as to improve the heating depth and temperature, reduce the fuel consumption, save the energy and reduce the construction cost under the condition of reaching the required heating depth and temperature.
Owner:CHONGQING JIAOTONG UNIVERSITY

Drying production method and device thereof for polyaluminium chloride water purifying agent

The invention discloses a drying production method and a device thereof for a polyaluminium chloride water purifying agent. The drying production method comprises the steps of: adopting a fluidized bed roaster as a hot blast stove to supply heat, and dividing high temperature flue gas at the temperature of 800-1000 DEG C into first-part flue gas and second-part flue gas, wherein the first-part flue gas and the second-part flue gas can be suitable for drying polyaluminium chloride liquid prepared by taking aluminum hydroxide, bauxite, calcium aluminate, hydrochloric acid and the like as raw materials through utilizing a one-step method or a two-step method, the content of liquid aluminum oxide can be 9-19%, and the basicity of products can be adapted to 40-98%; after liquid materials are dried, the quality of the drum-dried products meet a national standard GB/T22627-2008, and the quality of the spray-dried products meet the national standard GB15892-2009; and after the liquid is subjected to energy-saving drying, compared with the conventional drying process, 50-90 kg of the coals are saved during the production of each ton of solid products. The drying production method and the drying production device are more suitable for production devices in which the annual output of the single set of the drying device is 20000-50000 tons.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Automatic processing device for Chinese herbology

The invention discloses an automatic processing device for Chinese herbology. The automatic processing device comprises a box body; a material carrying screen plate is arranged on the inner side of the box body; a feeding pipe is arranged in the middle of the top of the box body; a storage box is arranged at the upper end of the feeding pipe; an air heater is further arranged at the top of the boxbody; an exhaust pipe connected to an air inlet of the air heater extends into the feeding pipe from the top of the storage box; an air conveying pipe connected to an air outlet of the air heater isconnected to a ring pipe; a plurality of air inlet branch pipes communicating with an inner cavity of the box body are arranged on the inner side of the ring pipe; a plurality of supporting rods are arranged on the side surface of the lower end of the feeding pipe; supporting sleeves are arranged at the outer ends of the supporting rods; vertical rods are arranged in the supporting sleeves; stirring blades matched with the material carrying screen plate are arranged at the lower ends of the vertical rods; outer gear rings are connected and fixed to the upper ends of the vertical rods through aplurality of connecting rods; and inner gear rings meshed with the outer gear rings are further arranged on the inner wall of the box body. The automatic processing device has the advantages of beingnovel in structure, high in processing efficiency, high in heat utilization rate, energy-saving, environment-friendly, capable of discharging materials conveniently and capable of improving the processing efficiency.
Owner:合肥红蔻健康管理有限公司

Molecular distillation separation method for grease chemical product and equipment

The invention discloses a molecular distillation separation method for a grease chemical product and equipment. A molecular distillation system consists of single molecular distillation equipment or multi-stage molecular distillation equipment in manners of serial connection, parallel connection or combination of serial connection and parallel connection; the multi-stage molecular distillation equipment is arranged in horizontal positions, up and down positions or combined way of horizontal positions and up and down positions; a product to be distilled is fed into the molecular distillation equipment from the top, is uniformly allocated for a first time through allocation tube holes or/and groove plates, is uniformly distributed to the upper part of a heating surface of the equipment to form a uniform film flowing from top to bottom, and is at least uniformly allocated further for a second time through an allocation groove plate or screening holes, and is uniformly distributed to the bottom from the heating surface of the equipment; under the action of heating and vacuum, a low-melting point oil chemical product is evaporated and recycled as a product of a first-class type; a high-melting point oil chemical product is fed to a next stage of molecular distillation; temperature and vacuum degrees of different stages of the molecular distillation equipment are determined according to low-melting point oil chemical products to be removed in equipment of a same stage, and various types of high-quality products can be prepared finally.
Owner:饶攀
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