31results about How to "Low liquid content" patented technology

A rotation pressurization dehydrator adapted to locally increase the compressive force on moving dehydrated cake so as to efficiently reduce the liquid content of its region for which dehydration has not been sufficient by a conventional rotation pressurization dehydrator, whereby in discharged, dehydrated cake, the difference in liquid content among regions is made small. In a rotation pressurization dehydrator (3) which, as a raw material advances in an annular filter chamber (41) formed around a rotary shaft (32), gradually applies a pressure to the material to change the liquid material into cake, thereby dehydrating the material, projections (51) are disposed on the inner peripheral surface (34c) of an outer ring spacer (34) so as to further reduce the liquid content of the dehydrated cake.

The invention provides a compact L-shaped column-cone combined tube type three-stage axial flow degassing device, which is applied to the efficient separation of gas-containing fluids. The three-stage axial flow degassing device adopts the high-efficiency degassing technology of the vertical high-speed swirl field combined with the vertical pipe, horizontal pipe and T-shaped pipe, the horizontal fast axial flow field and the vertical reversing scrubbing field. The cyclone adjusts the oblique incident gas-containing fluid and forms a vertical high-speed cyclone flow. The first-stage degasser implements the first-stage segmented vertical high-speed cyclone degassing operation, removes most of the gas phase of the gas-containing fluid and forms The first-stage gas and the first-stage fluid, the microporous homomixer breaks the large particle size bubbles of the first-stage fluid to form a gas-liquid uniform flow, and the second-stage degasser implements the second-stage horizontal impeller to create a fast axial flow degassing operation , remove most of the gas phase in the gas-liquid homogeneous flow and form secondary gas and secondary fluid, and the third-stage degasser implements the third-stage vertical reversing deep degassing operation to remove a small amount of remaining liquid phase of the secondary gas And form tertiary gas and tertiary fluid.

A solid-liquid separating apparatus is provided with: a separating roll which has a substantially cylindrical shape with a plurality of through holes, which penetrate between an inner surface and an outer surface in radial direction thereof, and is rotatable in circumferential direction thereof; and a pair of separating filter cloths which is endless belts capable of traveling in a rotation direction of the separating roll and are wound around the outer circumference of the separating roll so as to overlap each other, wherein a material supplied between the pair of filter cloths is squeezed by being rolled together with the pair of filter cloths therebetween on the outer circumference of the separating roll, and the material is dehydrated by ventilating via each through hole.

A method and apparatus for separating magnetic material from a slurry is disclosed, the method including the steps of providing a first moving surface, depositing the slurry onto the first moving surface, attracting at least a portion of the magnetic material of the slurry onto the first moving surface by first magnetic means, arranging the first moving surface such that liquid from the slurry is removed due to the portion of the magnetic material being attracted to the moving surface by the first magnetic means to form a magnetic material cake, separating an inner portion of the magnetic material cake from an outer portion of the magnetic material cake, with respect to the first moving surface, such that the inner portion has a lower liquid content than the outer portion.

The invention discloses a novel air supply and enthalpy increasing system and a control method thereof. A frequency converter module of the system is arranged between an air supply electromagnetic valve and a compressor air supply opening, the frequency converter module is provided with a frequency converter module temperature detection device, and a frequency converter module heat exchange device is arranged at the bottom of the frequency converter module. Flash evaporation refrigerating fluid in a flash-tank enters the frequency converter module heat exchange device through the air supply electromagnetic valve, the frequency converter module heat exchange device exchanges heat with the frequency converter module, and accordingly the temperature of the frequency converter module is lowered. The frequency converter module temperature detection device is connected with a master controller. The master controller is connected with the air supply electromagnetic valve, a first electronic expansion valve arranged between the flash-tank and an indoor heat exchanger, and a second electronic expansion valve arranged between the flash-tank and an outdoor heat exchanger. The invention further provides the control method of the system. The problems that according to an existing air supply and enthalpy increasing technology, under a hostile working condition, namely an ultralow temperature or superhigh temperature working condition, the temperature of the frequency converter module is excessively high, so that the stability of the frequency converter module and even the entire air supply and enthalpy increasing system gets worse, and the service life is shortened can be solved.

This invention discloses a method for removing carbonates during the aluminum oxide production and the apparatus thereof, which comprises: salt-removal equipment(forced-circulation evaporator or flash evaporation tank), salt settling tank, high concentration caustic alkali tank, salt seed crystal pump, lye pump and corresponding pipes. During the forced-circulation and flash evaporation salt-removing process, add appropriate amount of carbonate seed crystal and high concentration caustic alkali, so as to improve the salt-removing efficiency and obtain mostly anhydrous sodium carbonate with good settling and filtering properties in the removed salt.