50results about How to "High gasification temperature" patented technology

The invention provides a system and a method for gasification melting of household refuse and treatment of household refuse leachate. The system comprises a household refuse pretreatment system, a refuse energy recovering system and a refuse leachate concentration and flue gas treatment system, wherein the household refuse pretreatment system comprises a household refuse stock bin, a household refuse crusher, a household refuse sieving machine and a household refuse extrusion dehydrator which are sequentially connected; the refuse energy recovering system comprises a fluidized-bed gasifier, a cyclone melting furnace, a waste heat boiler and an air-supplying and oxygen-enriching system matched with the fluidized-bed gasifier, the cyclone melting furnace and the waste heat boiler; the refuse leachate concentration and flue gas treatment system comprises a leachate concentrating system, a flue gas purifying device and a wastewater treatment device. According to the system, the heat value of the refuge is increased by a pretreatment process; an oxygen-enriching gasifier and a high-temperature cyclone melting furnace technology are used as a recovering system of refuge energy; the refuge leachate is concentrated by using medium-temperature flue gas exhausted by the waste heat boiler; the concentrated leachate is sprayed into the high-temperature cyclone furnace for harmless treatment.

The invention relates to an efficient electrode wire for precision mould cutting. The efficient electrode wire comprises a core material and a shell layer wrapping the surface of the core material, the core material is made of yellow copper from the processes of smelting, casting, stretching and annealing, the shell layer is a discontinuous shell layer formed by heating, continuously drawing and continuously annealing a zinc metal plating layer plated on the yellow copper core material, and the discontinuous shell layer comprises shell particles which radially cover 40-90% of the surface of the core material and are distributed at intervals along an axial direction of the surface of the core material. The invention further relates to a preparation method of the electrode wire. The preparation method is simple in production technology, strong in operability, less in preparation steps, simple in production equipment and easy to prepare satisfactory products and realize large-scale and automated production. The efficient electrode wire is strong in universality and is particularly suitable for precision mould cutting.

The invention discloses a household up-draft biomass gasification device, which has an upright cylinder structure and is characterized in that the household up-draft biomass gasification device comprises a destructive distillation chamber arranged at the upper section thereof, a main gasification chamber arranged at the middle section thereof and an ash chamber arranged at the lower section thereof; all the sections are respectively separated by a heat storage grille and a heat storage grate; and the main gasification chamber is enclosed by a radiation cylinder on the periphery. The household up-draft biomass gasification device has no need of an external firing heat source, fast firing speed and high temperature of the gasification center, remarkably reduces tar content, reduces radiation loss of a furnace body, and has high gasification efficiency, long fire banking time of the gasification furnace, simple and compact structure, convenient operation and low operating cost.

The invention provides a solid biomass semiwater gas generating furnace, which includes a furnace body, a transmission mechanism, a feeding mechanism and a residue discharging mechanism. A head preserving layer 2 and a fire resisting layer 3 are arranged in the furnace body, a heat exchanger pipe 4 is arranged in the fire resisting layer 3, and a material homogenizing harrow is arranged on the hearth. A clinker chamber 12 and a cooling water tank 13 are arranged on the underside of the furnace body 1, a gasification agent inlet 14 is arranged on the clinker chamber 12, and a clinker outlet 15 is arranged on the bottom of the clinker chamber which is connected with a spiral clinker discharger 17. A rotatable furnace grate is arranged on the interface of the hearth and the clinker chamber 12. The invention can feed material and discharge clinker continuously, ensures the continuous stability of the gasification process, uses the vapor generated by residual heat to participate in gasification reaction, improves the carbon utilization rate, and improves the gasification rate of the solid biomass. Compared with gasification furnace with uniform section, the gasification strength of the invention is improved by 1.5-2.0 times, and the combustible gas calorific value is doubled.

The invention discloses a clean coal pressurized fluidized bed slag gasification process and system. By means of the gasification process and system, the problems that an existing pressurized fluidized bed industrial gasification process is complex, poor in coal applicability, low in gasification pressure, small in production capacity and low in gasification efficiency, the environment is polluted are solved. According to the technical scheme, the process includes the steps that raw material coal powder is pressurized and sent to a fluidized bed gasification furnace through a material inlet to react with a gasifying agent in a gasification mode, and crude synthesis gas and coal powder ash slag are obtained; the crude synthesis gad rises and is sent to a multi-pipe type cyclone separator through a top outlet of the fluidized bed gasification furnace to be dedusted, fluidizing agents are sprayed twice through a gasification spray nozzle to improve gasification efficiency, the coal powder ash slag is melt through a slag melting device, forms melt slag and then enters a slag quenching tank through a bottom outlet of the fluidized bed gasification furnace to be quenched and discharged through a slag locking hopper. The clean coal pressurized fluidized bed slag gasification process and system are simple in process, easy and convenient to operate, wide in coal applicability, high in gasification pressure, large in production capacity, high in gasification efficiency and environmentally friendly.

The invention relates to a quick heating and gasifying test device; the middle part of a reaction tube (3) is positioned in a tubular electric heating furnace (4); an air inlet hole (6) is formed in the bottom end of the reaction tube (3); a filler layer (7) is arranged in the lower part of the reaction tube (3); a cooling water device (10) is arranged outside the reaction tube (3) on the tubular electric heating furnace (4); a charging valve (2) is arranged on the reaction tube (3) on the cooling water device (10); an air outlet hole (1) is formed in the charging valve (2); a side air outlet hole (9) is formed in the reaction tube (3) between the cooling water device (10) and the charging valve (2); a thermocouple (8) is arranged in the middle of the reaction tube (3) on the filler layer (7). The quick heating and gasifying test device is simple in structure, convenient to operate, and suitable for quickly heating and gasifying various solid carbon-containing matters such as coal and petroleum coke in various atmospheres at a certain temperature; the device also has the advantages of continuously measuring a gasified product and automatically recording the gasification reactivity.

The invention discloses a high-difficulty steel core wire electrode and a manufacturing method thereof. The high-difficulty steel core wire electrode comprises a core material, a middle clad layer and an outer clad layer. The core material is prepared from raw materials including, by weight, 30-54 parts of iron, 30-55 parts of carbon, 1.5-2.4 parts of tin, 4-9 parts of chromium, 1-3 parts of manganese, 2-5 parts of molybdenum, 1.3-5.1 parts of nickel, 2.3-5.4 parts of silicon, 3-6 parts of tungsten, 3-4 parts of vanadium, 2-6 parts of phosphorus, 5-10 parts of sulphur and 12-15 parts of heat conducting filler. The steel core wire electrode is a composite wire and is composed of the steel core, the middle red copper clad layer and the outer brass clad layer. At the normal temperature, the steel core and a brass wire almost have the same tensile strength, but with the increase of temperature, the tensile strength of the brass wire is rapidly reduced, and the tensile strength of the steel is higher than that of the brass wire. The red copper layer is wrapped outside the steel core to improve the electric conductivity, and the outer brass layer plays a role in improving the washing performance.

The invention relates to a low-temperature high-efficiency atomization ejection seawater desalination device and a method thereof, and is suitable for the field of seawater desalination. The device comprises a low-pressure evaporation chamber, a solar heating device, a high-efficiency atomization device, a gas-liquid separation device, and a steam injection condensation device. The method comprises the following process flow: heated seawater is sprayed out in a mist shape through the high-efficiency atomization device, after the seawater is atomized, part of the seawater becomes water vapor and the other is seawater droplets, the seawater droplets are separated by the gas-liquid separation device, and then the water vapor is subjected to injection condensation to be turned into fresh waterfor daily use. The device provided by the invention makes full use of low-grade heat energy, has low energy consumption, reduces pollution by utilizing renewable energy, has low production costs, a high yield of the fresh water and a high salt yield, is suitable for large-scale promotion, and extremely facilitates daily life of residents in coastal areas and use by small and medium-sized fishingboats.

The invention discloses a preparation method and application of boron-composition-cladded silicon nano paste. The preparation method comprises the following steps: 1) preparing nano silicon suspension liquid; and 2) preparing boron-containing high polymer in the nano silicon suspension liquid prepared in the step 1), and meanwhile, stirring to prepare evenly dispersed boron-containing nano silicon paste, wherein protective atmosphere is introduced during the reaction process, and the viscosity of the boron-containing nano silicon paste is 1.0-15.0PaS. The prepared boron-containing nano silicon paste is printed on the surface of a battery silicon wafer through screen printing, the line clearness is high, and no burr is generated. The silicon wafer can be selectively doped, and high and low doped areas are formed.

The invention discloses a garbage disposal system and method based on fuel cell combined power generation. The system comprises a garbage gasification subsystem and a fuel cell combined power generation subsystem, wherein the garbage gasification subsystem comprises a garbage gasification furnace, a purification system and a waste heat boiler, the fuel cell combined power generation subsystem comprises a preheater, an air compressor, an air preheater, a fuel cell, an inverter, a combustion chamber, a residual heat boiler and a thermal power generation system, the garbage gasification subsystemis used for gasifying garbage to implement reduction of garbage, the fuel cell combined power generation subsystem partially converts Gibbs free energy in chemical energy of combustible gas in garbage gasified gas into electric energy, unreacted combustible gas is combusted and then generates power through the thermal power generation system, and tail gas is used for preheating the garbage gasified gas and air. The system can achieve efficient utilization of garbage.

The invention discloses a fluidized bed heavy oil cracking and gasification graded conversion device and a fluidized bed heavy oil cracking and gasification graded conversion method. The device comprises a feeding unit, a carrier gas unit, a cracking-gasification unit, a cooling recovery unit, a gas-liquid separation unit and a light oil recovery unit, wherein the feeding unit comprises a heavy oil system, a steam system and a solid particle system and is used for realizing efficient atomization of heavy oil and steam and continuous and stable feeding of oil gas, the carrier gas unit comprisesa fluidized gas system and a gasifying agent system and is used for preheating fluidized gas and continuously feeding a gasifying agent, the cracking-gasification unit comprises a coupling reaction system, a solid circulating return system and a dust removal system and is used for completing heavy oil cracking, solid trapping and circulating return, the cooling recovery unit comprises an online sampling system, a washing system and a rectification system and is used for realizing the collection of cracked oil products and the recycling of light oil and heavy oil, and the gas-liquid separationand light oil recovery unit comprises a two-stage condensation gas-liquid separation system, an adsorption tank and a filter and is used for completing the efficient separation of gas and liquid phases and recovery of light tail oil.

The present invention discloses a fluidized-bed gasification furnace for treating biomass. According to the fluidized-bed gasification furnace, the fluidized-bed gasification furnace body comprises an upper cylinder having a cylindrical structure, a lower cylinder having a cylindrical structure, and a connection section for connecting the upper cylinder and the lower cylinder; and the fluidized-bed gasification furnace is characterized in that the diameter ratio of the upper cylinder to the lower cylinder is 1.5-2:1, the connection section has a top-removing cone structure, the inclination angle of the connection section is 45-75 DEG, the bottom portion of the lower cylinder is provided with a wind distribution plate, the wind distribution plate has a hollow round table structure having the large upper portion and the small lower portion, and the included angle between the wind distribution plate and the bottom portion of the lower cylinder is 20-55 DEG. According to the present invention, the biomass raw material can be subjected to the large-scale treatment with the fluidized-bed gasification furnace, the fluidized-bed gasification furnace has the high energy conversion rate, the tar content in the produced fuel gas is low, and the secondary pollution cannot be generated.

The process of co-producing acetylene and synthetic gas includes the following steps: mixing and drying petroleum coke and lime powder and spraying to gasifying furnace together with oxygen for partial oxidation reaction to produce molten calcium carbide flowing to back reaction area of the gasifying furnace for further reaction to produce synthetic gas; exhausting the synthetic gas through the pellet filler layer in the upper part of the gasifying furnace, dedusting in the cyclonic separator and ceramic tube filter and recovering afterheat in the afterheat recovering system to generate high and medium pressure steam; chilling the reacted molten calcium carbide with the chilling agent of arene-rich wax oil in the chilling trough below the molten bath to form calcium carbide oil slurry; reducing pressure and temperature of calcium carbide oil slurry and reacting with water in the acetylene generator to produce acetylene and calcium hydroxide.

The invention discloses a method and device for heating a down-draft biomass gasifier by exhaust gas of an engine, comprising a biomass gasifier, a double-fuel engine, a heat exchanger and the like. In the invention, high-temperature waste gas exhausted by the double-fuel engine is partly led into a spiral tube arranged in the gasifier to heat materials in the gasifier, thereby raising the biomass gasification temperature and the temperature of a catalytic cracking chamber in the furnace and benefiting the cracking of tar in gas, in the furnace. The heat exchanger arranged at the outlet of the gasifier can supply self-production steam to the gasifier and enables the gas to be condensed and cooled to realize the purpose that the steam and the air are used as a gasification agent. Compared with a down-draft biomass gasifier usually taking air as the gasification agent, the down-draft biomass gasifier provided by the invention ensures that a heat value of the gas is enhanced by above 20 percent. The device can integrate biomass gasification and catalytic cracking of the tar in the furnace, efficiently solve the problem of purification of the tar in the gas to enable the tar content to be lowered by above 60 percent in comparison with the tar content in the gas of an ordinary fixed-bed gasifier and has the advantages of simple structure, little flowing resistance and easiness for implementation.

The invention discloses an automatic control domestic garbage pyrolysis gasification furnace, and belongs to the technical field of domestic garbage recycling. The automatic control domestic garbage pyrolysis gasification furnace comprises a furnace base, a furnace, a material distribution device, an air supply device, an air distribution disc driving device and a combustible gas and oil gas backflow device. The automatic control domestic garbage pyrolysis gasification furnace has the advantages that the automatic control domestic garbage pyrolysis gasification furnace comprises fireproof heat-insulation walls, accordingly, the internal gasification temperatures of the automatic control domestic garbage pyrolysis gasification furnace can be increased, and the gasification efficiency can beimproved; a large quantity of generated tar can be secondarily cracked by the aid of the combustible gas and oil gas backflow device, accordingly, the combustible gas gasification quality and puritycan be improved, and the combustible gas gasification quantity can be increased; the heights of material layers in the automatic control domestic garbage pyrolysis gasification furnace can be accurately controlled by a fixed-point material distributor, and accordingly gasification effects can be guaranteed; the fixed-point material distributor and material feeders are in interlocking control, accordingly, the automatic control domestic garbage pyrolysis gasification furnace can be conveniently operated by personnel, and unnecessary motor power consumption can be reduced; support structures arearranged at a furnace bottom in a flange manner, accordingly, all components are convenient to detach and maintain, and residues and water can be separated from one another; the structures of air supply systems are simplified, accordingly, mounting can be facilitated, the automatic control domestic garbage pyrolysis gasification furnace has functions of two gas channels, and water does not need to be periodically supplemented for water seals; the residues can be discharged and collected in a concentrated manner by the aid of an automatic residue discharge device at any time; anti-explosion valves are arranged on the upper portion of the furnace, and accordingly harm on equipment and the personnel due to sudden flash explosion of gas can be prevented.