68results about How to "Stable and dry" patented technology

A process for solvent casting which comprises, casting a dope from a casting die onto a casting support, drying the cast dope on the casting support to form film, stripping off the film from the casting support, and further drying the film, wherein the dope has a solid matter content of from 17 mass % to 30 mass %, and a mean drying rate between the casting of the dope and the stripping off is more than 300 mass %/minute and not more than 1000 mass %/minute is proposed. The process for solvent casting for producing a film comprising the steps of casting a dope from a casting die to a casting support, forming the film by drying the dope to some extent, stripping off the film from the casting support and further drying the film while conveying the film with carrying it at both side edges of the film by a tenter under a specified condition is also proposed. The high-speed solution film forming methods enable to produce the film having good quality with stable conveying and with stable drying especially in the conveying of the film by the tenter machine in the drying steps after stripping off from the casting support.

The invention discloses a porous sintering heat-insulating hollow block and a manufacturing process thereof. According to the porous sintering heat-insulating hollow block, the void rate is 35 to 60 percent, the density is 700 to 1,000 kg/m<3>, and the coefficient of heat conductivity is less than or equal to 0.22 W/m.K. The porous sintering heat-insulating hollow block consists of the following ingredients in percentage by weight: 30 to 45 percent of solid waste, 45 to 55 percent of inorganic binder and 5 to 15 percent of micropore pore forming agent. The manufacturing process comprises the following steps of: 1, performing grain composition; 2, sieving for grading; 3, weighing raw materials; 4, mixing, homogenizing and aging; 5, extruding for forming; 6, cutting and stacking; 7, drying;and 8, sintering. The porous sintering heat-insulating hollow block is reasonable in design, convenient to realize, high in utilization rate of solid wastes, energy-saving, environment-friendly, highin void rate, low in density, high in thermal performance and strength, stable in size and difficult to crack, can be popularized and used in large areas, and has the excellent economic and social benefits.

The invention belongs to the field of water-based ink and production technology thereof, and in particular relates to high-performance water-based epoxy ink and a preparation method thereof. The water-based ink is prepared from a water-based epoxy resin emulsion binder, pigments, auxiliaries, water and other little alcohol substance. The preparation method comprises the following steps of: takingwater-based epoxy resin as the binder; adding a certain amount of pigments, solvent, defoaming agents, wetting agents, dispersing agents and the like; mixing and grinding the materials to prepare a component A; fully mixing a certain amount of water-based epoxy hardener and a proper amount of water to prepare a component B; and fully and uniformly mixing the component A and the component B, and filtering the mixture through a screen to prepare the ink. The prepared ink has the advantages of good solvent resistance, water resistance, gloss retention and adhesive force, stable performance, quick drying, good printing adaptability, dark ink color and bright colors. Because the solvent is water, the ink has the characteristics of no toxicity, no pungent odor, noninflammability, no pollution and the like and is favorable for protecting environment and improving construction environmental quality.

The invention provides a rake type vacuum drying system, which comprises a rake type vacuum drying host machine, a bag type filter, a condenser, a gas-liquid separator, a vacuum pump, an oil pump and a hot oil tank, wherein a main shaft of the rake type vacuum drying host machine is a solid main shaft; a plurality of rake tooth components are arranged on the main shaft; each rake tooth component comprises a sleeve shaft and four solid rake teeth uniformly distributed on the sleeve shaft in a fixed manner, and is connected on the main shaft through a sleeve shaft key; the rake teeth of the respective rake tooth components face towards the same direction, so that four passageways are formed in a tank body; and striking rods are respectively arranged in respective passageways or in spaced passageways. In the invention, materials inside the tank body of the drying host machine are struck continuously by using the striking rods, so that the crushing of the materials is accelerated, the materials can obtain larger specific surface areas, the drying process is accelerated, and finished products have uniform fineness and low water content; thus, the rake type vacuum drying system is suitable for drying lithium iron phosphate materials, and the product quality and drying efficiency are improved; moreover, the system is used for recovering solvents through the condenser and the gas-liquid separator, and is beneficial to reduction of the cost.

The invention relates to a carpet cleaner, which is characterized in that, the cooling exhaust air stream of a sucking motor is suitable for lotion pressure injection, and therefore, the lotion can be uniformly injected in the length direction of the rotary shaft of a rotary brush.

The invention relates to a carpet cleaner, which is characterized in that, a wet carpet can be rapidly dried, and washing efficiency can be improved via sufficient dissolution of a lotion, and particularly relates to a carpet cleaner which realizes stabilization of a heater via air supply to the heater through drive force of a sucking motor.

The invention relates to the field of drying equipment, in particular to a medium and energy internal recycle drying machine. The medium and energy internal recycle drying machine is characterized by comprising a drying machine body (1), a drying room (2) and a circle system; and the circle system comprises a draught fan (5), an evaporator (6), a compressor (7), an expansion valve (8), a condenser (9), a hot air internal flow passage (10), a hot air external flow passage (11), a water outlet pipe (12), a vertical hot air passage (13) and a cold air passage (14). According to the provided drying machine, in the drying process, a drying medium and heat energy of a process system recycle in the drying machine and are not discharged outside, the heat loss of exhausted gas does not exist, the material overheating phenomenon cannot occur, the drying process is gentle and stable, the drying quality is good, and the drying energy consumption is greatly saved; and meanwhile, the heat exchanging efficiency of a condensation room is greatly improved, the dehumidifying effect is intensified, and the ventilation power consumption is lowered.

The invention discloses a process gas temperature control method for a superheated steam drier. The process gas temperature control method comprises the following steps: setting standard values of incoming tobacco water, process gas temperature and combustion furnace temperature as d<standard>, c<standard1> and c<standard2> respectively, and detecting real-time values of the incoming tobacco water, process gas temperature and combustion furnace temperature as d<real>, c<real 1> and c<real 2> respectively; respectively performing real-time comparison on the c<real 1> and c<standard1>, d<real> and d<standard> and c<real 2> and c<standard2>, and outputting the bypass air damper opening degree y1, ywater and ytemperature by virtue of a temperature PID (Proportion Integration Differentiation) controller, a water compensation module and a temperature compensation module in real time; and calculating a bypass air damper opening set value y according to a formula of y=y1+ywater+ytemperature, outputting the set value to a bypass air damper locator to be used for controlling the real-time opening of the bypass air damper. According to the method, the incoming tobacco water and the combustionfurnace temperature can be pre-judged, the set value of the bypass air damper opening can be corrected in advance, and the process gas temperature is rapidly and accurately adjusted.

The invention discloses combined tobacco material drying equipment. The equipment includes an airflow-type tobacco shred baking device and a roller-type tobacco shred baking device, and a dischargingend of the airflow-type tobacco shred baking device is communicated with a feeding end of the roller-type tobacco shred baking device to conduct drying treatment on tobacco materials in sequence. Through series combination of the airflow-type tobacco shred baking device and roller-type tobacco shred baking device, drying is conducted on the tobacco materials, and the tobacco materials can be effectively dried and meet a process requirement. The combined tobacco material drying equipment has the advantages of the airflow-type tobacco shred baking device and roller-type tobacco shred baking device, defects of a single drying mode are made up by the two tobacco shred baking devices, and therefore the dried materials are more flexible, stable and uniform. Moreover, by using recovered tail gasenergy of the airflow-type tobacco shred baking device for supplying heat to the roller-type tobacco shred baking device, the purpose of saving energy can be thus achieved.

The invention provides a reduced pressure drying device and reduced pressure drying method. The reduced pressure drying device receives a substrate in the inner space in a chamber, and exhausts ambient gas of the inner space through an exhausting pipe connected with the chamber to reduce the pressure of the inner space and heat the inner space. In this way, the solvent content contained in a coating film of the substrate can be gasified and the coating film is dried. The reduced pressure drying device comprises an auxiliary pipe heating portion which heats an auxiliary pipe. The reduced pressure drying device can stably reduce pressure and heat simultaneously.

The invention provides an inorganic nanometer material printing ink, wherein the solvent in the inorganic nanometer material printing ink is an organic solvent, the inorganic nanometer material printing ink comprises at least an inorganic nanometer material and at least a pyrrolidone-based organic solvent, the pyrrolidone-based organic solvent has a structure represented by a structure general formula I, and in the formula I, R1 and R2 are independently selected from C1-C20 aliphatic groups and C1-20 aromatic groups.

The invention relates to a compressed air dryer in the field of air dehumidifying technological equipment. The compressed air dryer comprises an adsorption tank A and an adsorption tank B which are arranged in parallel and are filled with adsorbents; the lower parts of the adsorption tank A and the adsorption tank B are connected in parallel via two air inlet valves and two humidity discharging valves; an air inlet is formed between the two air inlet valves; a silencer is arranged between the two humidity discharging valves; the upper parts of the adsorption tank A and the adsorption tank B are connected via a throttle valve, a pilot valve and two check valves; the output ends of the two check valves are opposite to each other; a moisture detection instrument and an air outlet valve are connected between the check valves. The compressed air dryer realizes two functions of drying and dehydration regeneration, realizes water closed ring automatic control, and is simple and reliable in structure; a control system adopts a PLC (programmable logic controller) and realizes accurate control, the adsorbents are active aluminum oxide particles, the adsorption force is strong, the adsorbents are in a fluid state in the adsorption tank A and the adsorption tank B, water exchange and heat exchange are conducted, the exchange efficiency is doubled, and the compressed air dryer is worthy of wide popularization and application.

The invention discloses an MVR band drying system and a drying method thereof. The system comprises a band dryer and further comprises a feeding and discharging unit, an MVR circulating unit, a steamrecycling unit and a waste heat recycling circulating unit which are connected with the band dryer. The MVR band drying system and the drying method thereof can improve the heat transfer process of the drying process so as to enhance stability and safety of the drying process.