34results about How to "Avoid excessive dehydration" patented technology

The present invention relates to one kind of combined rolling press grinding apparatus, and belongs to the field of inorganic non-metal material grinding technology. The combined rolling press grinding apparatus includes one dispensing mechanism, one lifting and conveying mechanism, one rolling press, one ball mill, one powder concentrator, one dust collector and one fan. The present invention has the advantages of low milling loss, simple structure, several operation mode, high grinding efficiency, low power consumption, etc.

A method of catalytically preparing a fluid product from solid carbonaceous material is described. In the method, at least one of the following equilibria is established by one or more catalysts: a) CH3OH═CO+2H2, b) CO+H2O═CO2+H2. In some embodiments, the solid carbonaceous material is woody biomass. Components of the fluid product can include one or a combination of C5-C9 alcohols. In certain embodiments, the method can be practiced with substantially all of the carbon in the carbonaceous material being converted to the fluid product. Also, in some embodiments, the fluid product can be prepared with substantially no char formation. The fluid product of various embodiments can be used directly as fuel or as a reagent for preparing commodity chemicals without the need for separating the fluid product components.

The invention discloses a low-temperature start control method for a fuel cell system. The low-temperature start control method comprises parking control and start control. According to the invention, when parking control is carried out, a fuel cell is kept in relatively high reaction gas supply quantity; therefore, a role of blowing is played; residual liquid water in the fuel cell can be removed; simultaneously, the fuel cell is kept in relatively low intermittent loading current; intermittent water supply to a proton exchange membrane of the fuel cell can be carried out, such that the excessive water loss condition of the proton exchange membrane is prevented; when the fuel cell system is started, the fuel cell releases heat to increase the temperature by utilizing self reaction; an extra auxiliary energy is unnecessary to heat; furthermore, loading start is carried out by adopting the starting condition and the current density corresponding to a parking post-treatment process; the low-temperature start process of the fuel cell system can be successfully implemented; due to the invention, the fuel cell can be controlled in a proper state after parking in a low-temperature temperature; and furthermore, the fuel cell system can be rapidly started again in the state in the low-temperature temperature.

A fuel cell system includes a fuel cell, an operation controller, a checking unit, a scavenging unit, an instructing unit, a temperature sensor, a humidifier and a humidification controller. The operation controller selects one of a normal operation mode and a low-temperature operation mode. The checking unit determines whether the fuel cell has been started up in the low-temperature operation mode. The instructing unit provides an instruction for a shutoff of electricity generation. When the scavenging unit conducts scavenging based on the checking unit determining that the fuel cell has been started in the low-temperature operation mode in response to an instruction for a shutoff of electricity generation and an actual temperature of the fuel cell is higher than a predetermined temperature, the humidification controller controls an amount of humidification according to the actual temperature.

The invention discloses a carbon dioxide absorbent for fruit and vegetable storage and transportation, and a preparation method thereof, and belongs to the field of storage and transportation fresh-keeping of picked fruits and vegetables. The preparation method of the carbon dioxide absorbent comprises the following steps: introducing a specific type of organosilane to tetramethoxysilane which is a precuros step by step in order to synthesizes a hydrophobically-modified and amino area functionalized modified mesoporous silica support material, and loading organic amine on the pores and the surface of the support material to obtain the carbon dioxide absorbent. The absorbent which has strong hydrophobicity can significantly alleviate and eliminate the competitive adsorption of water vapor to carbon dioxide and the adverse effect on the adsorption stability in the high humidity environment of the fruit and vegetable storage and transportation, and the functional modification structure design of the amino area is used to highly disperse -NH2 in the outer layer of the material to realize easy contact with carbon dioxide in order to effectively improve the absorption capacity of carbon dioxide. The carbon dioxide absorbent has the advantages of strong absorption ability, long acting period, high adsorption selectivity, good use safety, high efficiency, greenness, and meeting the actual production demands of fruits and vegetables.

A nozzle with aperture adjusted automatically in response to an independent variable. Nozzle is defined as a protruding part, conduit, valve, vent, vane, funnel, flap, or diaphragm, connected to a tube, pump, canister or source of fluid, which is any liquid, gas or flowing mixture, for the purpose of controlling the rate of flow, direction, pattern, composition or other features of the flow or mixture. The nozzle of this invention comprises an adjustable aperture and the apparatus of this invention is comprised of the nozzle and the circuitry or processor to receive a signal from at least one sensor and automatically adjust the aperture in response to the signal. The invention can be used with any variety of fluids that are liquid, gas, flowing semi-solid or combination. A preferred embodiment employs the signal from a water vapor pressure sensor to adjust the aperture of the nozzle to disperse a droplet size that creates drizzle.

The invention is applicable to the technical field of health care product production mechanical equipment, and provides a smashing and drying all-in-one machine for health care product production. Thesmashing and drying all-in-one machine comprises a machine shell, wherein conveying cylinders are connected to two sides of the machine shell; a feed hopper is arranged on the top part of each conveying cylinder; a primary cutting mechanism is arranged in each feed hopper; a conveying mechanism is arranged in each conveying cylinder; movable blockage mechanisms are symmetrically arranged on the left inner wall and the right inner wall of the machine shell; a flash drying mechanism is arranged above the movable blockage mechanisms and comprises a turning assembly and a hot air assembly; a multistage smashing mechanism is arranged under the movable blockage mechanisms; and a discharge pipe is connected to the bottom part of the multistage smashing mechanism. The smashing and drying all-in-one machine for health care product production provided by the invention has two functions of smashing and drying at the same time, the use of mechanical equipment during the production of health careproducts is reduced, an appropriate drying degree can be achieved by utilizing the processes of cutting, drying and smashing, and the occurrence of the phenomenon of drying outside and wetting insideor excessive dewatering is avoided.

An industrial two-layer fabric of 16 or more shafts consists of an upper side fabric having upper side warps and upper side wefts and a lower side fabric having lower side warps and lower side wefts, the upper side fabric and the lower side fabric are bound by binding yarns. A first warp pair consists of a binding yarn and one of an adjacent upper side warp, an adjacent lower side warp and an adjacent binding yarn. A second warp pair consists of an upper side warp and an adjacent lower side warp. In a complete design, two or more of the first warp pairs are placed adjacent to each other, and two or more of the second warp pairs are placed adjacent to each other.

A method of catalytically preparing a fluid product from solid carbonaceous material is described. In the method, at least one of the following equilibria is established by one or more catalysts: a) CH3OH═CO+2H2, b) CO+H2O═CO2+H2. In some versions, the solid carbonaceous material is woody biomass. Components of the fluid product can include one or a combination of C5-C9 alcohols, In certain versions, the method can he practiced with substantially all of the carbon in the carbonaceous material being converted to the fluid product. Also, in some versions, the fluid product can be prepared with substantially no char formation. The fluid product of various versions can be used directly as fuel or as a reagent for preparing commodity chemicals without the need for separating the fluid product components.

The invention discloses a method for synthesizing terpinum from turpentine oil and preparing terpineol and acetic ester. The method comprises the following steps: turpentine oil, water, phosphoric acid, alpha-hydroxy acid, a cocatalyst and an emulsifier are added into a reaction kettle, stirring is started, and a synthetic product is obtained after a reaction; the synthetic product is allowed to stand for crystallization, filtering is performed to obtain a hydrated terpinum crystal, a filter liquid is allowed to stand for delamination, and the upper layer is oil containing a hydrous product; the terpinum crystal is added into a dehydration reaction kettle and water is added thereto, stirring and heating are performed, and the reaction is allowed to obtain a crude terpineol product; the terpinum crystal is added into an esterification reaction kettle, acetic anhydride is added, stirring is performed, a temperature reaction is performed to obtain a crude acetic ester product; the crude terpineol product or the ethyl ester product is neutralized by lime water, water washing is performed, and a product after the water washing is subjected to vacuum fractionation to obtain a refined terpineol or acetic ester product. The method provided by the invention has the advantages of simple process, less discharge of three wastes, mild reaction conditions, high yield of terpineol, and relatively good social, ecological and economic benefits.

The invention belongs to the technical field of fruit and vegetable rot preventing and freshness keeping, and relates to a method for prolonging the freshness keeping period of strawberries. The method comprises the steps that medium-well strawberries are harvested in a sunny day, soaked in 45-DEG C hot water for 10 minutes and then soaked in a solution containing 2% vitamin C, 2% calcium chloride and 2% citric acid for one minute, and lastly the treated strawberries are naturally air-dried, packaged and stored. According to the method, by soaking the fresh strawberries in the 45 DEG C hot water for 10 minutes, microorganisms on the surfaces of the strawberries can be killed, the activity of enzymes related to strawberry aging is reduced, the respiratory action of the strawberries is reduced, therefore, aging is delayed, and the problem that the strawberries rot after being picked is solved; the strawberries are treated by cooperating with a chemical freshness keeping agent, and therefore the freshness keeping period of the strawberries is effectively prolonged. The method has the advantages that operation is easy, the reagent is low in cost and easy to obtain, the method is suitable for industrialized storage of the strawberries, the problems that the strawberries are not resistant to storage and prone to rot are solved, and economic losses of farmer households are reduced.

The invention provides an anode intermittent exhaust method for an anode closed proton exchange membrane fuel cell. A humidification treatment program is set during an exhaust operation, and a protonexchange membrane is subjected to humidification treatment before exhaust gas is discharged. According to the method, by monitoring the voltage in system operation and closing a plurality of valves, the problems of repeated water loss and absorption of a membrane electrode during the intermittent exhaust process of the anode closed proton exchange membrane fuel cell are solved, and the problem ofslow recovery after an excessive voltage drop during the exhaust process is solved.

A method of catalytically preparing a fluid product from solid carbonaceous material is described. In the method, at least one of the following equilibria is established by one or more catalysts: a) CH3OH=CO+2H2, b) CO+H2O=CO2+H2. In some versions, the solid carbonaceous material is woody biomass. Components of the fluid product can include one or a combination of C5-C9 alcohols. In certain versions, the method can be practiced with substantially all of the carbon in the carbonaceous material being converted to the fluid product. Also, in some versions, the fluid product can be prepared with substantially no char formation. The fluid product of various versions can be used directly as fuel or as a reagent for preparing commodity chemicals without the need for separating the fluid product components.

The invention discloses an automatic vegetable dehydrating device. The automatic vegetable dehydrating device comprises a cleaning frame, the cleaning frame is internally provided with a cleaning chamber, the cleaning chamber is internally provided with a cleaning mechanism, the cleaning mechanism comprises a material fetching shaft rotatably arranged on the rear end wall of the cleaning chamber,a spin-drying mechanism is arranged on the right side of the cleaning mechanism, the spin-drying mechanism comprises a spin-drying frame, the spin-drying frame is fixed to the right end surface of thecleaning frame, a bake-drying mechanism is arranged on the lower side of the spin-drying mechanism, the bake-drying comprises a machine body arranged on the lower side of the spin-drying frame, and the machine body is internally provided with a working chamber. According to the automatic vegetable dehydrating device, operation is easy, after vegetables are washed and cleaned, water on the surfaces of the vegetables can be quickly removed through the automatic vegetable dehydrating device, after the water on the surfaces of the vegetables is removed, the vegetables are bake-dried through a rotating bake-drying method, after bake-drying, the bake-dried vegetables can be conveyed into a material storage chamber through the automatic vegetable dehydrating device, taking of working personnel is convenient, and excessive dehydration of the vegetables can also be prevented effectively.

A nozzle device (1) comprises a plurality of multi-fluid nozzles (5) and a body (2) with a bore (8). The bore (8) has a laser entrance (82) and a laser exit (81). The nozzle device (1) is adapted to be mounted to a laser medical device such that a laser beam generated by the laser medical device enters the laser entrance (82) of the bore (8) of the body (2) and exits the laser exit (81) of the bore (8) of the body (2). The body (2) houses the multi-fluid nozzles (5) and the multi-fluid nozzles (5) are arranged around the laser exit (81) of the bore (8) of the body (2). The nozzle device (1) allows to conditioning a tissue at and near where it is cut or drilled by the laser beam of the laser medical device. Thus, the nozzle device (1) is particularly suitable for a laser osteotomic device allowing to minimize collateral damages of the tissue when being cut or drilled.

A homogenization and deoiling integrated steam self-rotation damp-heat pretreatment device mainly comprises a cylindrical pretreatment reaction tank, a temperature-control oil guide pipe is arranged between the inner wall and the outer wall of a tank body of the pretreatment tank, and the temperature-control oil guide pipe is filled with heat conduction oil. The temperature-control oil guide pipe makes contact with the inner wall of the tank body. The portion between the temperature-control oil guide pipe and the outer wall of the tank body is filled with a heat-preservation material. A feed inlet is formed in a top cover of the tank body, and a discharge opening is formed in the bottom of the tank body. A steam coiled pipe distributed spirally is installed in the tank body of the pretreatment tank. The inner side and the tail end of the steam coiled pipe are provided with steam sprayers, the curvature radius of the steam sprayers is equal to the circular radius of the steam coiled pipe, and the included angle between the arc tangential line of the steam sprayers and the circular tangential line of the steam coiled pipe ranges from 5 degrees to 10 degrees. A tubular deoiler is arranged on the upper portion of the tank body of the pretreatment reaction tank, a peristaltic pump is disposed in an oil guide port of the deoiler, and scrapped grease is sucked and transferred to a waste oil recycling box. The invention further discloses a kitchen waste pretreatment method using the device.

The invention belongs to the technical field of specimen treatment and particularly relates to a preservation fixation solution of a pathological tissue. The preservation fixation solution of the pathological tissue comprises the following ingredients in parts by mass: 10-15 parts of furfuraldehyde, 8-12 parts of hydroxyl compound, 1-6 parts of mannitol extract, 6-10 parts of alliin, 6-8 parts of(A2) trimethylglycine, 1-3 parts of carbon-based-4,4-diacetone-xylose-fatty alcohol-phosphate chelation compound polymer and 50-60 parts of water. The preservation fixation solution is free from methanal and alcohol, and nontoxic, is not required to be replaced, has no influence on a working environment, a good specimen preservation effect and a significant antibacterial effect; the tissue is freefrom mildewing and shrinkage, natural in color, flexible and wet; at the same time, the solution is stable in property; the specimen has no mildew spots or rancidness after simulated accelerated preservation for 6 months at 40 DEG C; the preservation solution is clear; the specimen keeps initial shape, color, rigidity and tenacity; and the solution can be massively popularized and used, particularly in a high-temperature area.

An auto-fat transplanting apparatus is composed of negative- pressure sucking tube, container with internal multi-tooth comb shaped rotary rod, laminar flow separator, dewatering device, injection tube, sealed connecting tube and pump. Its fat particles screening method for purifying and separating fat particles to make Them have higher activity is also disclosed.

A nozzle device (1) comprises a plurality of multi-fluid nozzles (5) and a body (2) with a bore (8). The bore (8) has a laser entrance (82) and a laser exit (81). The nozzle device (1) is adapted to be mounted to a laser medical device such that a laser beam generated by the laser medical device enters the laser entrance (82) of the bore (8) of the body (2) and exits the laser exit (81) of the bore (8) of the body (2). The body (2) houses the multi-fluid nozzles (5) and the multi-fluid nozzles (5) are arranged around the laser exit (81) of the bore (8) of the body (2). The nozzle device (1) allows to conditioning a tissue at and near where it is cut or drilled by the laser beam of the laser medical device. Thus, the nozzle device (1) is particularly suitable for a laser osteotomic device allowing to minimize collateral damages of the tissue when being cut or drilled.

The invention provides an anode intermittent exhaust method for an anode closed proton exchange membrane fuel cell. A humidification treatment program is set during the exhaust work process, and the proton exchange membrane is subjected to humidification treatment before the exhaust gas is discharged. The invention solves the problem of repeated water loss and water absorption of the membrane electrode during the intermittent exhaust process of the anode closed proton exchange membrane fuel cell by monitoring the voltage of the system during operation and the closing of several valves, and the voltage drops too fast during the exhaust process. Then the problem of slow recovery.

The present invention relates to one kind of combined rolling press grinding apparatus, and belongs to the field of inorganic non-metal material grinding technology. The combined rolling press grinding apparatus includes one dispensing mechanism, one lifting and conveying mechanism, one rolling press, one ball mill, one powder concentrator, one dust collector and one fan. The present invention has the advantages of low milling loss, simple structure, several operation mode, high grinding efficiency, low power consumption, etc.

The invention belongs to the technical field of specimen processing, and in particular relates to a preservation fixative for pathological tissue. The preservation fixative for pathological tissue according to the present invention (expressed in parts by mass) is composed of the following components: 10-15 parts of furfural, 8-12 parts of hydroxyl compounds, 4-6 parts of mannitol extract, 6- parts of alliin 10 parts, 6-8 parts of trimethylglycine, 1-3 parts of carbonyl-4, 4-diisoidene-fatty alcohol-phosphate chelate polymer, and 50-60 parts of water. The preservation fixative does not contain formaldehyde and ethanol, does not need to be replaced, is non-toxic, and has no impact on the working environment; the preservation effect of the specimen is good, the bacteriostatic effect is remarkable, it is not mildewed, does not shrink, the color is natural, the tissue is flexible and moist; at the same time, The properties are stable, and the specimens are stored for 6 months at 40℃. The specimens are free of mold spots and rancidity. The preservation solution is clear.

Provided is a kitchen waste split-phase energy generating device. An outlet of a heat conduction oil pipeline of a steam self-rotating damp and heat pre-treatment device is connected with a three-phase heat preserving device. A steam outlet is connected with a heat accumulator. After damp and heat pre-treatment ends, heat conduction oil and high-temperature waste heat of steam are recycled and stored in a three-phase heat exchanging and heat preserving unit. A bottom discharge port of the damp and heat pre-treatment device is connected with a screw-folded dehydrator so that solid and liquid separation can be performed. Kitchen waste on which damp and heat pre-treatment is performed enters a liquid-phase material fermentation tank to generate hydrogen through solid and liquid separated liquid phases; a solid-phase material fermentation tank is connected with an adjusting tank, and solid materials passing the screw-folded dehydrator enters the solid-phase material fermentation tank to generate methane through a conveying pump after parameter adjustment is performed. Heating coils of a liquid-phase fermentation tank and a solid-phase fermentation tank of an anaerobic fermentation unit are connected with the heat accumulator of the three-phase heat exchanging heat preserving unit, and heat preservation is performed on an anaerobic fermentation tank through a temperature-control electromagnetic valve. The kitchen waste split-phase energy generating device can achieve the split-phase energy generation of hydrogen and methane gas cogeneration of the kitchen waste and achieve the optimum energy conversion efficiency.

The invention discloses a coating storage method and equipment for low-moisture seeds, and the method comprises the following steps: step 1, putting a parylene material into an evaporation chamber, connecting the evaporation chamber with a cracking chamber through a pipeline, and putting the seeds to be coated into a deposition chamber; 2, vacuumizing the evaporation chamber and the cracking chamber through a first pipeline; 3, the evaporation chamber, the cracking chamber and the deposition chamber are controlled to reach the preset temperature; 4, when the temperature and the air pressure of the evaporation chamber and the cracking chamber reach preset values, vacuumizing the deposition chamber to a preset pressure value through a second pipeline; and 5, closing the first pipeline and the second pipeline, and enabling the cracked parylene gas to enter the deposition chamber through a third pipeline to start coating. According to the invention, the time for exposing seeds in a vacuum environment for a long time can be reduced, and excessive dehydration is avoided.

The invention discloses an emergency regulation and control method for a water return gate in an accident section of an open channel water conveyance project, and the method comprises the steps: obtaining the starting time of the required water return gate, and timely and orderly arranging water return according to the water regimen in the early stage of emergency scheduling. In the later period of emergency dispatching, the water level prediction formula calculation result is combined, and the water return gate starting time is corrected; in the aspect of setting the closing water level of the recession gate, the design water level is replaced by the normal operation lower limit water level, so that the single recession time of the recession gate is prolonged. According to the method, the starting frequency of the water recession gate can be reduced, and the orderliness and reliability of emergency regulation and control are improved.

A homogeneous deoiling integrated steam spin wet heat pretreatment device mainly includes: a cylindrical pretreatment reaction tank, a temperature control oil guide pipe is arranged between the inner wall and the outer wall of the pretreatment tank, and the temperature control oil guide The tube is filled with heat conduction oil, the temperature control oil guide tube is in contact with the inner wall of the tank, and the space between the temperature control oil guide tube and the outer wall of the tank is filled with thermal insulation material, the top cover of the tank body is equipped with a feed port, and the bottom of the tank body is provided with a discharge port ;The tank body of the pretreatment tank is equipped with spirally arranged steam coils, and the inner side and the tail of the steam coils are provided with steam nozzles. The curvature radius of the steam nozzles is equal to the circle radius of the steam coils. The included angle of the circle tangent is between 5° and 10°; the upper part of the pretreatment reaction tank is equipped with a tubular oil remover, and the oil guide port of the oil remover is equipped with a peristaltic pump to suck out the scraped grease and transfer it to the waste oil recycle bin. The invention also discloses a method for pretreating kitchen waste by using the device.

The invention mainly relates to the technical field of planting, and discloses a treatment method for promoting germination of ginkgo seeds. The method includes the following steps: fermentation, freezing, microwave treatment, germination accelerating, and sowing. The method provided by the invention is simple and easy to operate, the ginkgo seeds are unearthed and germinated 10-12 days after being sown, the germination rate reaches 87%, and the planting efficiency of ginkgoes is significantly increased; the seeds with pulp are placed into a sucrose solution for yeast fermentation, so that thenutrients in the pulp can be fully utilized, the nutrients are decomposed into abundant small molecular nutrient substances, and the small molecular nutrient substances penetrate the seeds to promoteaccumulation of the nutrients in the seeds and accelerate the seed germination; the fermented seeds are frozen, so that the germ vitality of the seeds is stimulated, the germination ability of the seeds is improved, and the germination rate of the seeds is improved; and the frozen seeds are subjected to intermittent microwave treatment, a manganese sulfate solution containing clofibrate is sprayed to the seeds after each microwave treatment is performed, so that excessive water loss of the seeds is prevented, the penetration of the clofibrate and the manganese sulfate into the seeds is promoted, the protoplasmic vitality of the seeds is improved, and the germination of the seeds is promoted.

The invention relates to a decompression storage method of tapioca roots, which comprises the following specific operation steps of: 1, cleaning: simply cleaning fresh tapioca roots, and after removing silt on the surfaces of the tapioca roots, carrying out air-drying for later use; 2, pre-cooling: carrying out pre-cooling processing on the tapioca roots with ice water with the temperature of 4 to9 DEG C so as to cool the tapioca roots; 3, sterilization: after air-drying the pre-cooled tapioca roots, placing the tapioca roots into a storage box, and carrying out surface sterilization treatment on the tapioca roots under the closed condition; 4, decompression: decompressing the storage box by using a vacuum pump to reduce the pressure of the storage box to 0.4 to 0.7 atmospheric pressure;and 5, ventilation: carrying out pressurization and ventilation on the storage box at intervals of preset time, and repeating the operations of the step 3 and the step 4 after the air pressure in thestorage box is balanced with the external air pressure. The decompression storage method of the tapioca roots, which is disclosed by the invention, has the advantages of low storage cost, low storageenvironment requirement and good storage effect.