72results about How to "Raise the temperature level" patented technology

The invention relates to an efficient waste heat using organic contaminated soil displacement thermal desorption repairing system and method. A burner is communicated with a high temperature oxidizingchamber, a high temperature smoke pipe of the high temperature oxidizing chamber is communicated with a rotary kiln heating processing system and an air heat exchanger, a high temperature air outletof the air heat exchanger is communicated with the burner, a smoke pipe of the air preheater is communicated with an inlet of a quench tower, an outlet of the quench tower is communicated with an inlet of a bag-type dust collector, an outlet of the bag-type dust collector is communicated with an inlet of a deacidification tower, an outlet of the deacidification tower is communicated with an air inlet of a second induced draft fan, and an outlet of the second induced draft fan is communicated with a chimney. A part of high temperature flue gas generated by the burner enters a rotary kiln thermal desorption reactor to achieve desorption of organic pollutant and soil drying pretreatment, organic matter enters the high temperature oxidizing chamber through a backflow pipe for burning treatment, and thorough oxidative degradation removal is achieved; and the other part of high temperature flue gas is used for increasing the temperature of combustion air through the air heat exchanger.

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 relates to a top-firing hot blast furnace which adopts upper spraying, premixing, firing, reflux and heating by annular airflow and effectively solves the problems of the rationality and stability of the fluid flow in the hot blast furnace and the sufficiency and uniformity of the mixing of different fluids. The top-firing hot blast furnace has the following structure: a vault is positioned on a burner of the upper part of a furnace body; the lower part of a furnace grate under the furnace body is provided with a cold wind chamber; a flue gas outlet pipe and a cold wind inlet pipe are arranged on the sidewall of the cold wind chamber; a combustion chamber is formed between a straight cylinder part on the upper part of the burner and the vault; a hot blast outlet pipe is arranged on the straight cylinder part; the lower part of the burner is provided with a heat storage chamber; the outer wall of the burner is positioned on an outer supporting annular plate of the upper part of the furnace body; the inside of the burner is separated into a coal gas distribution circuit and an air distribution circuit by a partition wall of an oblique circuit; the outer ends of the coal gas distribution circuit and the air distribution circuit are provided with a coal gas inlet pipe and an air inlet pipe respectively; a conduit is formed between the upper parts of the outer wall and the inner wall of the burner; the coal gas distribution circuit and the air distribution circuit are connected with an annular airflow premixing conduit through the respective nozzle tube distributed on the peripheral wall of the burner; and a flow equalizing and obstructing baffle plate is formed between the upper part of the conduit and the combustion chamber. The top-firing hot blast furnace has good economical and social benefits.

The invention provides a solar energy and terrestrial heat combination two-level flash double-working-medium cycle power generation hot water system. The solar energy and terrestrial heat combination two-level flash double-working-medium cycle power generation hot water system comprises a groove type solar energy heat collector, a heat storage device, a terrestrial heat processing device, a first-level flash vessel, a second-level flash vessel, a steam turbine, a low-pressure compressor, a high-pressure compressor, an evaporator, a middle evaporator, a middle cooler and a condenser, wherein the terrestrial heat processing device, the first-level flash vessel, the second-level flash vessel, the steam turbine, the low-pressure compressor, the high-pressure compressor, the evaporator communicate to a production well, the middle evaporator, the middle cooler and the condenser communicate to a recharge well, and the heat storage device and the groove type solar energy heat collector communicate with each other and form a closed cycle.

The invention discloses a vertical pressurization entrained flow gasification method and a device which is suitable for dust coal with high ash fusion point, slag tapping, synthesis gas and liquid slag and flows to a slag hole of down stream, the device comprises a metal casing 2 of a gasification stove, a thermal-insulating heat-insulating layer 3, a flame-proof inner container 4, a oxidize nozzle 6, a dust coal nozzle 7, a water vapor nozzle 5 and a water vapor nozzle 8. The invention is characterized in that dust coals and gasifying agents are sprayed into a gasification stove through nozzles on different heights on stove walls in different stove inlet mode, dust coal is radially sprayed through a nozzle on the upper portion of a stove body under the conveying of carrier gas, oxidizing agent is injected with high speed through a nozzle 6 on another different on the upper portion of the stove body along the direction which is parallel to the circular cross section tangent of the stove body, water vapor is injected with high speed through nozzles 7 and 8 on the lower part of the stove body along the direction which is parallel to the circular cross section tangent of the stove body, and the rotating directions of the gasifying agents on the upper portion and the lower portion are the same. Contact and reaction time of dust coal and gasifying agents in the stove is increased, gasification reaction is led to be more complete, which is beneficial further improving gasification efficiency. And the method adopts a downwards parallel current model of synthesis gas and liquid slag, which smoothly achieve slag tapping of dust coal with high ash fusion point.

The invention discloses a combined type flue gas residual heat comprehensive utilization system. A first-stage flue gas cooler and a second-stage flue gas cooler are arranged in front of and behind a dust collector respectively to realize stepped utilization of residual heat of exhaust smoke; condensed water with high entropy is heated at a flue gas high-temperature section; cold air with low entropy is heated in a flue gas low-temperature section; and a flue gas low-temperature section cooler and a flue gas high-temperature section cooler run in series. By adopting the comprehensive utilization system, the inlet water temperature level and the closed circulation water temperature level of the second-stage flue gas cooler are raised, and the risks of low-temperature corrosion and closed circulating water freezing in the flue gas cooler are decreased.

The invention discloses a device and method for heating and melting rubbish under the oxygen-rich condition. The device comprises a rubbish melting furnace. The rubbish melting furnace is connected with an oxygen supply system. The bottom of the rubbish melting furnace is connected with a cooling device. The oxygen supply system comprises an air separation device, an air feeder and an air preheater which are connected sequentially. A first air blowing opening is formed in the upper portion of the rubbish melting furnace. A second air blowing opening is formed in the bottom of the rubbish melting furnace. Both the first air blowing opening and the second air blowing opening communicate with the air preheater. The oxygen supply system supplies separated oxygen-rich gas to the rubbish melting furnace, and the oxygen-rich gas is used as an oxidizing agent for melting the rubbish. The beneficial effects of the oxygen-rich combustion and melting treatment are used, combustion heat of fuel is used, fly ash of the rubbish is molten at the high temperature, stable glassy state slag is formed after cooling, organic components of Dioxin and the like are destroyed, and most of heavy metals are solidified in the glassy state slag.

The invention is applicable to the technical field of roadbed engineering construction and maintenance, and provides a heat pipe type solar photothermal device aiming at roadbed frost heave, comprising a photothermal conversion tube, the photothermal conversion tube is sleeved with a light transmission tube, a vacuum cavity is formed between the photothermal conversion tube and the light transmission tube, two ends of the photothermal conversion tube are respectively connected with a first joint and a second joint, and an end cap is arranged on the first joint to form a seal at one end of thephotothermal conversion tube; one end of a thermal dissipation tube is connected with the second joint and is in communication with the photothermal conversion tube, the other end of the thermal dissipation tube is provided with a tapered guide cap, and the inside of the photothermal conversion tube and the inside of the thermal dissipation tube are filled with a first heat transfer medium; a first tube shell is located inside the photothermal conversion tube, a second tube shell is fixed in the inside of the thermal dissipation tube through a bracket, one end of the first tube shell and one end of the second tube shell are connected through a sealing piece, the inside of the first tube shell and the inside of the second tube shell are in conduction, and a second heat transfer medium is infused into the first tube shell and the second tube shell, so as to solve the problem that the effect of the frost heave prevention measures for the roadbed is not ideal.

A system and method of controlling energy that is input to a material substance, for the controlled removal of moisture from the material substance, is disclosed. A controlled air flow is blown onto the material substance at a specified air flow rate over at least one specified time period such that the material substance absorbs thermal energy from the controlled air flow via at least one outer surface of the material substance. The controlled air flow is of a specified humidity level at a specified temperature level. The material substance is also irradiated with microwave energy at a first specified power level for at least a first specified time duration such that the material substance absorbs at least a part of the microwave energy and converts the absorbed microwave energy to thermal energy within the material substance. As a result, moisture is removed from the material substance in a controlled manner.

PCT No. PCT/DE97/00895 Sec. 371 Date Jun. 3, 1999 Sec. 102(e) Date Nov. 9, 1998 PCT Filed Apr. 30, 1997 PCT Pub. No. WO97/43221 PCT Pub. Date Nov. 20, 1997A process is disclosed for treating the scrubbing water from the gas scrubbing process in an iron ore reduction plant. The scrubbing water is brought into direct contact with the gas in two gas scrubbers arranged in two successive scrubbing stages at the gas-side, is withdrawn from the gas scrubbers and is supplied again to the gas scrubbers after the solids it contains are separated, and after it is treated and cooled. The scrubbing water is separately withdrawn from the two scrubbing stages and only the scrubbing water from the first scrubbing stage is largely freed from solids in a thickener, then led into a warm water container. The scrubbing water from the second scrubbing stage is directly led into a return water container in which it releases carbon dioxide-rich flash gas led into the scrubbing water in the warm water container to enrich it with carbon dioxide. The scrubbing water from the warm water container is cooled in a heat exchanger, then fed back to the gas scrubbers of the two scrubbing stages together with the scrubbing water from the return water container. Moreover, part of the carbon dioxide-rich scrubbed gas or part of the carbon dioxide-rich water contained in the return water container may also be led into the warm water container to enrich the scrubbing water in the warm water container with carbon dioxide.

The invention is applied to the technical field of subgrade engineering and provides an internal circulation type solar heating device for a subgrade. The axis of a metal heat collecting pipe is superposed with that of a glass tube; two ends of the metal heat collecting pipe and two ends of the glass tube are all connected by bellow expansion joints in a sealing manner; each of the two ends of themetal heat collecting pipe is respectively connected with a metal heat collecting pipe joint; the metal heat collecting pipe joints extend to the outer sides of the bellow expansion joints; the top end of a metal heat supply pipe is communicated with the metal heat collecting pipe joint at the bottom end of the metal heat collecting pipe through a threaded connector; a cone head guiding cap is arranged at the bottom end of the metal heat supply pipe; a circulating pump is driven by a solar cell to operate; an inlet of the circulating pump is communicated with the metal heat collecting pipe joint at the top end of the metal heat collecting pipe; an outlet of the circulating pump is communicated with an inlet of a circulating pipeline; an outlet of the circulating pipeline penetrates through the threaded connector and extends to the bottom of the metal heat supply pipe; the metal heat supply pipe and the metal heat collecting pipe are internally filled with heat transfer fluid. The problem of poor anti-frost heaving effect of the subgrade in the prior art is solved.

In a method for the keyhole-free fusion cutting of a workpiece (2), wherein the workpiece (2) is fused by a laser beam (3) along a kerf (5) to be produced and the resulting melt (7) is driven out of the produced kerf (5) by a gas jet with high pressure, according to the invention at least one laser beam (4) trails the laser beam (3) in the cutting direction (6) and influences the melt (7) such that at least one of the two cutting flanks (9a, 9b) of the workpiece (2) has a better cutting quality than without the trailing laser beam (4).

The invention discloses a mixed combustion device and combustion equipment utilizing same, and belongs to the technical field of combustion equipment. The mixed combustion device comprises a to-be-sprayed medium channel and a mixed combustion channel, wherein a reaction space wall for spacing the to-be-sprayed medium and the mixed combustion channel is provided with an orifice; and a combustion medium is sprayed from the to-be-sprayed medium channel to the mixed combustion channel through the orifice. From a combustion initial end of the mixed combustion channel to a combustion exhaustion end of the mixed combustion channel, combustion conditions are optimized along with progress of a combustion process; and different matching proportions of the to-be-sprayed medium are realized according to needs of different combustion stages, mixing uniformity of different media is realized to the greatest extent to facilitate combustion. The mixed combustion device is suitable for combustion of gas fuels, can be applied to combustion of liquid and solid fuels, and is especially suitable for combustion of fuels such as natural gas, coal gas, biogas, biomass cracking fuel gas, fuel oil, methanol, pulverized coal, biomass micro powder, straws, firewood, biomass forming fuels, block-shaped coals and the like.

A refrigerant cycle is provided with a multi-port compressor or compressor stages connected in series, and multiple condensers. A single evaporator communicates with the plurality of condensers. At least one of the plurality of condensers receives fully compressed refrigerant while the other condensers receive refrigerant at intermediate pressure. A control can optionally direct refrigerant to the condensers to achieve desired system heat rejection characteristics and operating conditions. One or multiple reheat coils may be associated with the evaporator and are arranged either in series or in parallel to provide a desired dehumidification function and reheat stages. One or several of the intermediate pressure condensers may be utilized for the reheat function as well.

The invention relates to a circular flow energy-saving smokeless oven and belongs to the technical field of barbecue devices for civil use. The oven comprises a double-circulation system, a main oven, a grill system, an auxiliary oven, a biological oil collector and a power supply device. The main oven communicates with the auxiliary oven via the double-circulation system; the grill system is arranged on the main oven and the auxiliary oven; collection stands at the bottoms of the main oven and the auxiliary oven are connected with the biological oil collector; the power supply device is installed on a side surface of the auxiliary oven for providing power; the temperature of the upper portion and the temperature of the middle portion of the main oven are higher than the temperature of the lower portion; the temperature of the upper portion and the middle portion of the auxiliary oven are lower than the temperature of the lower portion. The circular flow energy-saving smokeless oven has the advantages of high heat energy utilization rate, high efficiency, cleanness, convenient and low cost and is a device for civil cooking which can be used for continuous large-scale barbecue.