49results about How to "Stable gas source" patented technology

The invention discloses leadless bone china and a preparation method thereof. The leadless bone china consists of cattle bone coal, pig bone coal, sandstone in Datong, quartz, feldspar, kaolin, calcined kaolin, and bentonite. The preparation method is as follows: leadless bone china is sorted manually, pulverized and processed; b. calcining, ball milling and alkaline cleaning process equipment and process are adopted for the bone coal; c. wet process is adopted for preparing semi-finished china and glaze; d. roll forming process and chain-type dryness are adopted for flat products and products in regular shape; e. high temperature biscuit firing with natural gas and medium and low temperature glaze firing are adopted; f. machine and manual spraying glazing are adopted for glazing; g. a roller hearth furnace is adopted for enamel firing in the environment of natural gases. The leadless bone china is primarily prepared with sandstone in Datong; the molding ratio of the product is as high as 96 percent; the product is transparent, light, fine and hard; the china is harder, whiter and more transparent than the ordinary china.

This invention discloses centrifuge type ammonia compressor turbulence vibration prevention method and its device. The ammonia gas at ammonia compressor outlet opening is fed back to ammonia compressor inlet opening and mix with compressed ammonia gas. The mixed flow rate is larger than rated minimal inlet opening flow rate of ammonia compressor. Return pipe can be arranged out of any stage of cylinder outlet opening of ammonia compressor. This invention can protect compressor rotor.

The invention relates to an invisible multistage methane tank capable of producing methane evenly, which aims at solving the technical problem that the existing methane tank has short service life, has low yield of methane, provides methane unstably and is inconvenient to use and maintain. The methane tank comprises a tank wall and a tank bottom below the wall, wherein the joint of the tank wall and the tank bottom of the methane tank is smoothly connected; the methane tank also comprises an arch tank top, which is internally provided with clapboards dividing the tank top into at least two air collection chambers; the methane tank is also provided with a spraying and stirring mechanism, which comprises a liquid pump, an air inlet pipeline and an air outlet pipeline. The invisible multistage methane tank has the beneficial effects of having long service life as smooth arc transition reduces stress at the joint, being capable of maintaining on line, producing methane evenly, and occupying small land; in addition, the tank top has a plurality of air chambers and a plurality of sets of air outlet pipes, so that if one air chamber leaks air, the other air chambers are not affected, the continuity of methane supply is improved; the spraying and stirring mechanism washes the methane tank at the right time, so as to avoid crusting and increase the yield of methane.

The invention provides an oxygen and nitrogen mixing type high-precision proportioning device. The oxygen and nitrogen mixing type high-precision proportioning device comprises an oxygen gas bottle, a nitrogen gas bottle, an oxygen gas mass and flow controller, a nitrogen gas mass and flow controller and a proportioning cabin; under a working state, oxygen gas is output by the oxygen gas bottle; after flow is adjusted by the oxygen gas mass and flow controller, the oxygen gas is conveyed into the proportioning cabin; meanwhile, nitrogen gas is output by the nitrogen gas bottle; after the flow is adjusted by the nitrogen gas mass and flow controller, the nitrogen gas is conveyed into the proportioning cabin; after the oxygen gas and the nitrogen gas are mixed and proportioned through the proportioning cabin, the mixed gas is output; the proportioning cabin comprises a cylindrical sealed pipe and is only provided with an input opening and an output opening which are used for inputting the oxygen gas and the nitrogen gas and outputting the mixed and proportioned gas; one section of cylindrical net is internally arranged, the length is 200mm to 240mm and the diameter is 28mm to 36mm; the diameter of net meshes is 0.03mm to 0.12mm. The oxygen and nitrogen mixing type high-precision proportioning device can be used for accurately controlling the proportion of oxygen and nitrogen; high-purity oxygen and nitrogen mixed gas with the oxygen concentration more than 3 percent and less than or equal to 21 percent is provided for a coal spontaneous ignition simulation device.

The invention discloses a method for preheating a canalization molten-salt section during producing alumina and relates to a method for preheating a molten-salt heating section before pump starting of canalization molten-salt during producing alumina. The method is characterized in that the preheating of the canalization molten-salt section is realized in such a way that dead steam in a self-evaporation system is adopted to heat ore pulp in a canalization stripping pipe and molten salt in an interlayer of the canalization stripping pipe is preheated through the heated ore pulp. Compared with the prior art, the method for preheating a canalization molten-salt section during producing alumina adopts steam heating, low fault compared with electric tracing cords, lower investment and running cost than electric tracing, short heating time, can achieve temperature needed for the start of the canalization device in short time, can preheat the whole system through self-evaporation systems of a canalization system at all levels and is beneficial to establishing heat balance after the canalization device starts.

The present invention is a multi-way mixed gas preparation system. The system is formed in the way that an input end of an upper computer is connected with a multi-way and large-flow measuring controller group and multi-way and small-flow measuring controller group respectively to control a gas flow; gas output ends of the multi-way and large-flow measuring controller group and the multi-way and small-flow measuring controller group are connected with a gas mixing chamber to mix gases; an input end of a gas analyzer is connected with an output end of the gas mixing chamber; an output end of the gas analyzer is connected with an input end of the upper computer to acquire a concentration signal. The present invention can both control a total flow of the mixed gas and reach the target component concentration requirement. Moreover, the present invention can realized the mixed preparation of multi-way and large-flow gases under a high-resolution closed-loop control condition. During a preparation course, the gas source is stable, the repeatability is good, the system automation is high, the operation is simple and convenient and the gas preparation precision is quite high.

The invention discloses a safety production power generation technology by an unstable gas source. A mode of combing underground gas extraction by sources and the front gas inlet of a mine generator set with gas ignition by a small quantity of diesel oil via the generator set is adopted, and the gas with an unstable concentration can be used for ensuring that the generator set can normally operate. A gas source pipeline is improved, the underground air source is divided into a main gas source (main pipeline) and an assistant gas source, thus the gas source is stable. Along with the continuousexploitation of the mine, the concentration of the extracted gas is continuously lowered. When the concentration is 5-9%, the diesel oil ignition technology is adopted, and the low-concentration gas can be fully utilized.

The invention relates to the technical field of aerostats, and discloses an air pressure switch, a pressure maintaining device and a high-altitude balloon restraining and releasing device. The air pressure switch comprises a strain surface and a strain detection component. The strain surface is formed on a wall surface of a sealed container and is used for generating deformation in a preset direction when air pressures inside and outside the sealed container are different; and a detection end of the strain detection component corresponds to the strain surface and is used for outputting a trigger signal when a dependent variable of the strain surface reaches a preset value. The air pressure switch disclosed in the invention is simple in structure and low in cost; weather resistance is good;in a floating environment of a high-altitude balloon, a restraining device of the high-altitude balloon is controlled to be reliably released at a preset height; meanwhile, stable air pressure in thepressure maintaining device can be controlled to be maintained so that a stable air source is provided for related load equipment, and a problem that reliable control over a working state of a cutterand the working state of an air pump in the high-altitude balloon floating environment is generally difficult to implement through an existing control means is solved.

The invention discloses a device and a method for comprehensively utilizing heat produced by decomposition of phosphorous gypsum in a circulating fluid bed, namely, a novel fluidizing air supply device of an integrated device for utilizing the waste heat of a phosphorous gypsum decomposition circulating fluid bed and a method for reducing energy consumption and enhancing CaSO4 decomposition rate and SO2 concentration in the process of coproducing cement clinker and sulfuric acid by decomposing the phosphorous gypsum through the circulating fluid bed. A fluidizing air source consisting of air serving as a primary component and main circulating flue gas serving as a secondary component is adopted, a material is fed into a main furnace of the circulating fluid bed under the action of the gas force of circularly flowing flue gas and corresponding reformation is performed on an exhaust pipeline so as to fulfill the aim of exhausting and circulating the flue gas. A reaction atmosphere in the fluid bed can be controlled effectively and the phosphorous gypsum is decomposed under the condition of reduction-oxidation atmosphere, so that the decomposition efficiency of the phosphorous gypsum is improved. The comprehensive utilization of circulating flue gas having waste heat reduces energy loss in an air heating and material delivering process and further saves energy sources. Simultaneously, the circulating flue gas weakens the diluting effect of the fluidizing air on SO2 instead of a part of air, so that the aim of obtaining high-concentration SO2 is fulfilled.

The invention discloses a novel automotive suspension device. The device comprises a fixing sleeve, a damping assembly, a wheel connecting rod and an adjusting buffer assembly, through the adjusting buffer assembly, when an automobile runs at a high speed, an automobile control system controls an air compressor and a first electromagnetic valve to be powered on and operate, compressed gas is conveyed into a buffer tank, the buffer tank is hardened, when the air pressure detected by an air pressure detector of the buffer tank reaches an upper limit value, the automobile control system controlsan air compressor and a first electromagnetic valve to stop running, stability of automobile driving is improved, when an automobile runs on an uneven road surface at a low speed, the automobile control system controls a second electromagnetic valve to be electrified to operate, when the air pressure detected by the air pressure detector of the buffer tank reaches a lower limit value, the automobile control system controls the second electromagnetic valve to stop running, so the buffer tank is softened, the automobile running comfort is improved, and the novel automobile suspension device is simple in structure, convenient and fast to operate and convenient to popularize and apply in the market.

The invention discloses a rapid and stable bridge construction platform. The rapid and stable bridge construction platform comprises a first connecting frame and a second connecting frame which are vertically arranged, a horizontally-arranged baffle is fixedly installed on the upper portion between the first connecting frame and the second connecting frame, a rolling mechanism is arranged below the baffle, the rolling mechanism consists of a plurality of groups of rotating rollers which are horizontally and uniformly distributed, the rotating roller is of a regular triangular prism structure,the corner of the regular triangular prism structure is of a chamfer structure, and a plurality of sets of sliding through holes and air outlet holes are formed in the plane of the chamfer structure.A user can conveniently move the device, the working efficiency of the user is improved, and the device can be conveniently moved and rapidly and stably placed.

The invention relates to the field of construction material, in particular to a material for manufacturing of a building decorative panel. The invention has the components and the weight proportion of 100 portions of phenolic resin, 2-10 portions of active agent, 2-10 portions of foaming agent and 3-10 portions of initiator. The invention (Phenolic Foam Plastic Plate) reduces building load and is convenient for installation construction, so as to have good thermal insulation and energy saving effect due to smaller thermal conductivity (0.030 W / m. k), more particularly, the invention can not release thick smoke during firing, which reduces air pollution, minimizes the toxic and harmful gas, and protects life and property safety of people.

The invention discloses a multi-stage inflation device used in a coal mine. The multi-stage inflation device comprises a pneumatic vehicle and an inflation device, wherein a gas multi-stage inflation device is used as the inflation device; a gas source gas inlet of the inflation device is divided into four parts through a four-way joint; one part is communicated with gas source gas inlets of a first pneumatic pressurization pump and a second pneumatic pressurization pump through a three-way joint I; the other parts are respectively communicated with driving gas inlets of the first pneumatic pressurization pump and the second pneumatic pressurization pump; gas outlets of the first pneumatic pressurization pump and the second pneumatic pressurization pump are gathered to form a gas path through a three-way joint III and then are sequentially communicated with a buffering tank, a gas bottle pressure gauge I, a pipeline switch IV and a gas source gas inlet of a third pneumatic pressurization pump; and a gas outlet of the third pneumatic pressurization pump is communicated with a gas outlet through an outlet pressure gauge II. The multi-stage inflation device performs inflation by using a gas source in an alley and is simple in structure, high in working efficiency, large in compression ratio and convenient and quick in inflation.

The invention discloses a method for preheating a canalization molten-salt section during producing alumina and relates to a method for preheating a molten-salt heating section before pump starting of canalization molten-salt during producing alumina. The method is characterized in that the preheating of the canalization molten-salt section is realized in such a way that dead steam in a self-evaporation system is adopted to heat ore pulp in a canalization stripping pipe and molten salt in an interlayer of the canalization stripping pipe is preheated through the heated ore pulp. Compared with the prior art, the method for preheating a canalization molten-salt section during producing alumina adopts steam heating, low fault compared with electric tracing cords, lower investment and running cost than electric tracing, short heating time, can achieve temperature needed for the start of the canalization device in short time, can preheat the whole system through self-evaporation systems of a canalization system at all levels and is beneficial to establishing heat balance after the canalization device starts.

The invention provides a xylylene diisocyanate rectification apparatus and a rectification method thereof. The apparatus comprises an organic solvent heater, a crude product reboiler, a rectifying tower, a first order condenser, a finished product pot, a crude solvent reception pot, a high vacuum set and a tail gas processing system, and the above components are connected according to a specific order to form a closed loop. The rectification apparatus has the advantages of scientific design, reasonable structure, energy saving, low production cost and reliable production quality. The method utilizes an organic solvent, provides a stable gas source for rectification, reduces the pressure drop of xylylene diisocyanate in the rectifying tower, and improves the separation efficiency and the product purity; and the organic solvent can be easily separated from xylylene diisocyanate, and does not form a new impurity. The method has the advantages of scientific design, simple operation, good rectification effect and high product quality.

The invention discloses a novel artificial intelligence environment-friendly air compressor system which comprises an air compressor, an air inlet pipeline is arranged on one side of the air compressor, an air outlet pipeline is arranged on the other side of the air compressor, an air inlet is formed in the end of the air inlet pipeline and extends to the outside, and a filtering device is arranged on the air inlet and movably connected to the air inlet. The refrigeration dryer is additionally arranged on the air inlet pipeline of the air compressor, so that the air temperature of the air inlet of the air compressor is reduced and is slightly lower than or equal to the temperature of the external use environment, and the refrigeration dryer is utilized for simple cooling, so that water is prevented from being generated.