72results about How to "Calorific value stable" patented technology

A ceramics heater comprises a circular heater plate formed of aluminum nitride and a metal foil heater wire formed of a high-melting metal and having a thickness of 100 μm to 175 μm. The heater wire is embedded in the heater plate. The heater wire has an inside portion located near the center of the heater plate and formed in zigzags at first pitches in the circumferential direction of the heater plate and an outside portion located near the outer periphery of the heater plate and formed in zigzags at second pitches in the circumferential direction of the heater plate. The second pitches are shorter than the first pitches.

A method of degrading and cleansing combustible gases produced during gasifying biological matters. It comprises) passing a cracking machine with a moving bed, the combustible gases will be cracked by high-temperature and catalysis in the charcoal bed at 800-1200degree C, most of tar is removed; b)reducing the temperature of combustible gases from 800degree C to 300-350degree C; c) dedusting by static electricity at a high-voltage electric field of 80000 volts, reducing the temperature to 250-300degree Cú”(d) washed by water, debusting and detarring, reducing the temperature to 60-80degree Cú”(E) washing, filtering and reducing the temperature to below 40degree C, the contents of tar and dust in the combustible gases will be reduced below 50mg/Nm3. The invention could remove completely dust and tar in combustible gases.

An embodiment of the present invention provides an optical module and an optical signal output control method thereof. The optical module comprises a distributed Bragg reflective DBR laser, a driving circuit for supplying a driving current to the active region of the laser, a first current source, a second current source, and a circuit switching unit. The first and second current sources are used for outputting a first current and a second current. The two input ends of the circuit switching unit are respectively connected to the current output ends of the first and second current sources. The output end of the circuit switching unit is connected to the DBR area of the laser. The circuit switching unit is used for connecting the current output end of the first current source to the DBR area of the laser to output the first current to allow the laser to transmit an optical signal with operating wavelength, after an optical transmitting signal is received. The circuit switching unit is further used for connecting the DBR current output end of the second current source to the DBR area of the laser to output the second current to allow the laser to transmit an optical signal with non-operating wavelength, after an optical stopping signal is received. The optical module is operated in a burst mode and wavelength shift of the optical signal emitted by the laser is small.

The invention discloses a direct desulfurization method of high-sulfur coal by microwave radiation, which comprises the following steps: 1) putting high-sulfur coal in a reactor, and putting the reactor in a microwave radiation reaction furnace; and 2) introducing carrier gas, switching on the microwave radiation reaction furnace to perform microwave radiation on the high-sulfur coal after the gas flow is stable, and switching off the microwave radiation reaction furnace. The desulfurization percent is 50% or so, the microwave-radiation high-sulfur coal desulfurization process has small influence on the major structure of coal, the heating amount, binding property, intrinsic structure characteristic, crystallinity, stability, thermal chemical properties and the like of the coal are kept stable, and the loss rate of coal is very low; and the microwave-radiation high-sulfur coal direct desulfurization method has the advantages of short production cycle, low equipment investment, high reaction speed, low energy consumption and high controllability, and can implement continuous production.

The invention discloses a composite fuel production method, which is characterized by the following: mixing the raw coal powder, vegetable fuel powder, sulfur-fixed agent, adhesive, hardener and oxygenation agent according to proportion with water; producing particle through particle moulding equipment; drying naturally into product. The invention reduces the environmental pollution, which is fit for industrial and civil fuel heat supply device.

The present invention provides a novel technical device of sludge dehydration and belongs to the solid waste disposal field. The device is applicable to the dehydration and granulation requirements of sludge with various components. A single screw and reverse screw threads and a peculiar structure arrangement are adopted to make the water of the sludge (a moisture content of which is about 80 percent) is dehydrated as a form of liquid, and make the sludge form a sludge dehydration and granulation process, the moisture content of which is 30 percent to 35 percent. A special sludge dehydration and granulation machine fills a blank that the sludge dehydration has to be dehydrated as the form of water vapor, which greatly reduces the energy cost of the sludge dehydration. With small size, low operation cost, high production efficiency, high mechanization degree and wide scope of application, the present invention is a novel and most energy-saving and cleanly-produced sludge dehydration device.

The invention discloses a control system and a method for the steady-value voltage stabilization of the mixed gas. The control system comprises a coke oven gas source and a blast furnace gas source, the coke oven gas source and the blast furnace gas source are connected with a first caliber branch and a second caliber branch which are connected in parallel through corresponding supply branches, the first caliber branch and the second caliber branch are merged to form a mixed branch; flow meters and flow regulating valves are arranged on the first caliber branch and the second caliber branch, aheat value instrument is arranged on the coke oven gas source and the blast furnace gas source supply branch and the mixing branch. According to the control system, a given amount of a flow regulating valve on each caliber branch is controlled through a mode of combining feedforward control with a double-closed-loop ratio control system, so as to adjust the heat value and the pressure of the mixed gas.

The invention discloses a gasification method and gasification furnace of coal seams based on branch wells, and aims to solve the problems that a gasification technique of coal seams is high in cost and low in recovery ratio in the prior art. The gasification method comprises the following steps: after finishing drilling construction, enabling gasification channels to be run-through, respectively downwards placing packers or guidance devices in different branch wells, downwards placing gas injecting devices in corresponding branch wells through the guidance devices, injecting a gasifying agent, confirming the gasifying time of coal seam regions to be gasified through calculation, and completing the gasifying process of the coal seam regions to be gasified; replacing the packers or the guidance devices in the branch wells, completing the gasifying process of the coal seam regions to be gasified of all branch wells, and outputting generated fuel gas to the ground through gas exhaust wells. Through the adoption of the gasification method disclosed by the invention, the fixed point quantitative controllable injection of the gasifying agent is realized, the process of gas generation is stable, the demands of the deep processing of fuel gas are satisfied, the gasification coal mining output and the recovery ratio of single well are effectively increased, besides, the service life of each gas injection well is prolonged, the cost of building furnaces and drilling is reduced, and the cost of ground construction and operation is reduced.

The invention provides a high-efficiency energy-saving environment-friendly fried rice color cooker. The cooker comprises an upper barrel body, a fried pot, a cooker body and a stirring device, wherein the cooker body comprises a cooker wall and a circular hearth; the fried pot is arranged in the upper barrel body and on the upper end of the circular hearth; the bottom surface of the fried pot and the upper end of the cooker body are in sealing fit; the upper barrel body is positioned on the upper end of the cooker body, the lower end of the upper barrel body and the upper end of the cooker body are in sealing fit; the stirring device is fix above the fried pot by a portal frame; and the inner wall of the circular hearth is provided with two burners respectively. The cooker of the invention has the advantages of improving the utilization ratio of heat energy in the fried color technological process and the production efficiency, lowering the labor intensity and improving the production environment.

The invention discloses a coal underground gasification temperature control system. The coal underground gasification temperature control system comprises an automatic distribution control system, a gas component analysis and detection system, an underground real-time temperature monitoring system and an auxiliary combustion system, wherein the automatic distribution control system and the gas component analysis and detection system are arranged on the ground. The technical problem that the coal underground gasification process cannot be controlled can be solved, the production process can be regulated according to the product requirement, and automatic operation and continuous production are achieved. A coal underground gasification temperature control technology and device can also make timely response and remedy for the gasification process obstacle caused by sudden change of the gasification environment, the gasification process can rapidly return to the dynamic balance, and the stable and continuous product gas output is guaranteed; the automation degree is high, the adaptability range is wide, operation is easy, safety is good, and economical efficiency and environment friendliness are achieved.

The invention discloses a fuel forming method which comprises the following steps of: crushing and cleaning herbaceous plant or woody plant raw materials, and removing impurities to obtain fragments with the particle sizes of phi 0.05-10 mm; according to different fragments, mixing sawdust and cotton fibers in different proportions to get a more stable heat value and meet a requirement for stable combustion; and putting the mixture into a fuel forming machine for compression forming. The herbaceous plant or woody plant raw materials can be fully used, have the advantages of high forming property, stable structure, high firing speed, high combustion efficiency, stable heat value, zero alkaline corrosion and the like and can be used for combustion type power generation; the problem that a power generation station cannot continuously and stably run because of insufficient energy is solved; the demand for non-regenerated energy such as coal is reduced; and the problem of environment pollution caused by combustion is solved.

The invention relates to the field of environmental protection, and particularly relates to a method for co-processing household garbage by a cement kiln. The method comprises the processing steps ofleaching treatment, sorting, crushing, drying, extrusion granulation and incineration. According to the method, a forming aid obtained by modifying cheap waste plastics is added, so that the householdgarbage is changed into granular cement kiln fuel which is stable in heat value, uniform in quality, stable in component and easy to combust; the characteristics of high temperature, large waste heat, residue utilization and the like of the cement kiln are combined, the waste heat of the cement kiln is fully utilized to dry the garbage, the incinerated ash is used as a cement production raw material, and the household garbage is changed into wealth; and a two-stage incineration technology is adopted, firstly, the garbage granules are subjected to high-temperature thermal decomposition in a low-oxygen environment, and then decomposed solid and gas are guided into a combustion chamber to be fully combusted. According to the method, the problems that the household garbage combustion effect is poor, the tail gas emission quality is poor, the slag combustion is incomplete and the like are solved, and the problem of secondary pollution is avoided.

The invention relates to disposable hygienic products, in particular to a production process of uterus-warming hygienic pants. The production process comprises the following steps of: 1, inputting outer-layer non-woven fabric, arranging waist-surrounding waistline rubber bands and abdomen waistline rubber bands at the front waist and the rear waist of the outer-layer non-woven fabric, and forming dummy cutting holes in the outer-layer non-woven fabric; 2, compounding a uterus warming patch at the front waist part of the outer-layer non-woven fabric; 3, compounding an inner-layer non-woven fabric on the outer-layer non-woven fabric; 4, compounding absorption core bodies on the inner-layer non-woven fabric; 5, folding the outer-layer non-woven fabric to enable the outer-layer non-woven fabric to cover the two ends, in the length direction, of each absorption core body; 6, cutting out a leg circumference area between every two adjacent absorption core bodies; 7, folding the middle of the outer-layer non-woven fabric, and then performing thermal compression on the front waist part and the rear waist part; and 8, cutting off the middle part of a thermal compressed part. With the sanitary pants adopted, the technical problems that existing sanitary pants are not reasonable enough in structure, low in production efficiency and high in cost can be solved.

The invention discloses an environment-friendly garbage incineration process and a matched device. The process includes that when block-shaped biomass fuel burns on the lower portion of a combustion chamber, garbage to be incinerated and powder biomass fuel to be incinerated are fed from the upper portion of the combustion chamber, during the falling process, combustible gas produced by primary combustion and decomposition of the powder biomass fuel and the block-shaped biomass fuel is mixed with secondary air of a boiler, so that high-temperature flue gas is produced through secondary combustion, and garbage entering the combustion chamber from a garbage feed inlet is pre-heated and combusted through the high-temperature flue gas so as to decompose dioxin precursor in the garbage and dioxin produced in the incineration process. Further, light oxide ash content with large quantities of pores is produced due to suspension combustion and semi-suspension combustion of the biomass fuel in the combustion chamber, suspends in the combustion chamber and then makes contact with acid gas produced by garbage incineration to form salt. The combustion characteristics of the biomass fuel are reasonably used, the problem of secondary pollution caused by garbage combustion is effectively solved, and favorable conditions are created for development of garbage power in middle-sized and small cities and solving of environment problems brought by garbage processing and open burning of straws in rural areas.

The invention relates to an oxygen spraying smelting reduction iron-making process which comprises the following steps of adding reasonable dolomite and quicklime powder into iron ores in a fit manner, spraying the mixture by an ore powder spray gun (2) into a reduction area (6) of a smelting reduction reaction furnace through a heating system, spraying pulverized coal into the reduction area (6)of a smelting reduction reaction furnace through a pulverized coal spray gun (3) by means of inert gas or reductive gas, and spraying the mixture into a molten iron molten bath through a slag layer tosupplement carbon for molten iron; and blowing normal temperature high purity oxygen from the upper side of the smelting reduction reaction furnace through an oxygen spraying device (1), ensuring a gas component proportion in the slag: (H2+CO)/(CO2+H2O) is smaller than 10 by spraying oxygen, controlling the slag amount to be greater than 0.5 t/tFe, controlling the slagging temperature to be higher than 1400 DEG C, controlling the alkalinity and the tapping temperature to be higher than 1350 DEG C, and desulfurizing the tapped molten iron, wherein the residual magnesium amount after desulfurization shall be controlled at 0.010-0.020%. The process improves the center oxygen spraying depth, reduces disturbance of environmental factors and improves the smelting efficiency.

The invention relates to the technical field of biomass fuel, and particularly relates to biomass synthetic fuel. The biomass synthetic fuel comprises the following components in parts by weight: 80-95 parts of an alcohol, 30-50 parts of an alkane, 10-20 parts of diethyl ether, 4-8 parts of a combustion-supporting heat-increasing agent and 0.5-4 parts of a safety stabilizer. The beneficial effectsof the biomass synthetic fuel provided by the invention are that the alkane is added on the basis of an alcohol group, so that the overall combustibility is improved; and the combustion-supporting heat-increasing agent and the safety stabilizer are added, so that the safety of the fuel is improved, the heat value of combustion is improved, and the flame temperature is increased.

The invention discloses a co-combustion device capable of automatically adjusting blending combustion amount of sludge. The co-combustion device comprises a mechanical grate furnace, a sludge feedingdevice, a stirring device, a control system and a water vapor sensor. The sludge feeding device, the stirring device and the water vapor sensor are separately connected with the control system, and the mechanical grate furnace is further provided with a temperature sensor. The control system provides power for the sludge feeding device and the stirring device, the water vapor sensor and the temperature sensor acquire water vapor volume fraction at the position of an outlet of a flue and a furnace box temperature to match the sludge feeding speed with the furnace box temperature, the furnace box temperature is controlled between 800 DEG C and 950 DEG C, meanwhile, by control over the stirring device, garbage and a sludge mixture are mixed fully, and combustion is stable. The invention further discloses a co-combustion method of the co-combustion device based on automatic adjustment of the blending combustion amount of the sludge. The blending proportion is proper, fuels are fully and stably combusted, and the equipment runs stably and is long in service life.

The invention belongs to the field of wall material production, and particularly relates to a sintered brick and a preparation method thereof, wherein the sintered brick raw material is composed of tailings and a preset substance, the preset substance is any one selected from clay, shale powder and fly ash, the mass percent of the tailings is 70-90%, the mass percent of the preset substance is 10-30%, the tailings are directly obtained after coal slime is sorted again through sorting equipment, and the tailings comprise, by mass, 45-65% of SiO2, 18-25% of Al2O3, 3-5% of Fe2O3, 3-5% of CaO, 1-3% of MgO and the balance of other elements, and have the plasticity index of 11-15 and the calorific value of 1.8-2.5 MJ/kg. According to the total internal heat sintered standard brick, energy is saved, the performance of the total internal heat sintered standard brick meets or even exceeds the national standard, and reutilization of coal slime tailings and shale is achieved. The preparation method of the sintered brick is simple in process, and the time cost is greatly saved.

The invention relates to a terracotta brick and a preparation method thereof. The terracotta brick is composed of 70 to 90 wt.% of tailing and 10 to 30 wt.% of clay. The tailing is directly obtained by resorting coal slurry by a sorting facility. The tailing comprises following components in percentage by weight: 62 to 76% of SiO2, 15 to 17% of Al2O3, 2 to 5% of Fe2O3, 0.5 to 2% of CaO, 0.5 to 2%of MgO, and the balance being other elements; the plasticity index of tailing is 12 to 18; the calorific value is 1.8 to 2.5 MJ/kg, and the loss on ignition is 3 to 10%. The provided terracotta brickmeets or even exceeds the national standards. The coal slurry tailing is reutilized, and the clay resource is saved. The preparation method is simple and the time is greatly saved.

The invention discloses a cluster system of a heating dummy model. The cluster system comprises the heating dummy model and a power control system. The heating dummy model is composed of a head, a trunk, two arms and two legs. The surfaces of the heating dummy model are all wound with heating resistance wires, each arm is wound with four heating resistance wires which are connected in parallel, and other portions are provided with two heating resistance wires which are connected in parallel. The heating resistance wires cover the surface area of the heating dummy model by 97 percent to 97.5 percent, the total resistance of the heating resistance wires after the heating resistance wires are connected in series is 1600 omega to 1699 omega, and the heating amount is 75W. The power control system comprises a 380V power supply, a control panel, a drive board, a power amplifier board, a temperature-measuring sensor and a voltage regulator. The cluster system of the heating dummy model achieves automatic control, is convenient and fast to operate, stable in heating amount and capable of achieving simulation of different human bodies with different dummies working with different power, and has the advantage of being wide in range of application. Meanwhile, the heating dummy model can adjust the heating amount under the control of the voltage regulator.

The invention provides a rapid small water heater of the structural style. The rapid small water heater is simple in structure, ingenious in design and reasonable in layout. The structural device which can automatically regulate the heating amount is designed for the defects that a traditional rapid heating type water heater is low in water temperature when water flow is large, and water is prone to boiling when the water flow is small, and therefore the water temperature of the water heater can be more stable. The repulsive force between magnets is creatively utilized, whether an additional resistor is connected into a working circuit in parallel or not is determined according to the size of the water flow, the value of the overall resistance in the working circuit is controlled according to the additional resistor, and therefore the heating amount of a working resistor is changed, the relatively-low-temperature heating can be achieved when the water flow is small, the relatively-high-temperature heating can be achieved when the water flow is large, and warm water or hot water can be provided for users under all water flow conditions. Thus, it can be said that the rapid small water heater has various advantages, is particularly suitable for application and popularization in the field, and is quite wide in market prospect.