33results 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.

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.

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.

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.

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.

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.

The invention relates to a material circulation resistance adjusting valve which comprises a baffle plate and a position adjusting mechanism. The baffle plate comprises a turnover dividing plate and atranslational motion dividing plate; the turnover dividing plate and the translational motion dividing plate jointly block a discharge hole corresponding to a dewatering auger; the turnover dividingplate is connected onto the discharge hole through a hinge mechanism; the position adjusting mechanism comprises a drive connecting rod; one end of the drive connecting rod is in drive connection withthe translational motion dividing plate; a translational motion drive mechanism for translational motion drive of the drive connecting rod is arranged at the other end of the drive connecting rod; and a transmission connecting rod is hinged between the turnover dividing plate and the drive connecting rod. The invention further relates to a material dewatering device comprising the material circulation resistance adjusting valve. The moisture content of a material produced by the material circulation resistance adjusting valve provided by the invention can be freely controlled according to theactual demand, and the material circulation resistance adjusting valve is convenient to use, convenient to control, simple in maintenance, and high in practicability.