A pump unit is disclosed which is used in feeding liquid in pipe line. The unit comprises a motor section and a pump section axially coupled with each other. The pump section includes a volute casing in which an impeller is rotatably mounted on an extended shaft of the motor and a cover plate having suctioning opening is attached to the volute casing in such a manner that it is radially adjustable to the casing at the time of installation, whereby the alignment of the suctioning opening with the...

A fluidized bed type thermal reactor having a furnace housing wherein there is substantially no partition wall and adapted to generate a downwardly descending moving bed portion and whirling fluidized bed portions at opposite lateral sides of the moving bed, respectively, whereby pre-shredding or crushing of material to be charged into the furnace is made substantially unnecessary. The reactor is provided with a unique feeder for charging the material so that the incombustible items the size of ...

A method and an apparatus are disclosed for composting a relatively large quantity of organic materials with a relatively small agitator adapted to travel in zig-zag path in a generally rectangular heaping zone where the organic materials are piled in a layer.

An apparatus for composting materials suitable for composting such as kitchen refuse or municipal refuse, in which rotary agitator units are provided above a plurality of horizontal floors, respectively so that the agitator units themselves are rotated simultaneously when the material such as kitchen refuse is charged onto the uppermost stage of the horizontal floors, the agitator units and said horizontal floors also being rotated relative to each other during which the charged material is agit...

Removal of NO.sub.x and SO.sub.x from waste gases is carried out by irradiation of the gas with ionizing radiation at a dose such as to reduce the content of NO.sub.x and SO.sub.x to a first predetermined level and passing such gas through subsequent irradiating stages with the dose of irradiation of the gas in the last stage being determined by the levels of NO.sub.x and SO.sub.x entering said last stage whereby to reduce such contaminants to desired levels and thereafter passing the gas throug...

A coupling system for detachably coupling an outlet port of a submergible pump to an inlet port of a discharge conduit is constructed by a single guide rail having at least two, and preferably, two guide portions extending along the length thereof, the rail being fixed at its lower end to the conduit; an arm attached to the pump so that it is guided by the rail; and first and second engaging means provided in the discharge conduit adjacent the inlet port and in the arm respectively so that the p...

A sealing means is disclosed which comprises a support member provided with a groove adapted to receive an annular seal therein which mates with the outer spherical surface of a swivel ball of a tank mixer upon installation thereof. The groove is positioned so that it is disposed between the diametrical section of the ball taken substantially parallel to the tank wall and the tank wall and that the internal pressure of the liquid in the tank urges the seal towards the diametrical section of the ...

A boiler is presented improved in capacity and efficiency and causing less pollution and noise wherein a first tubular wall means and a second tubular wall means outwardly of the first wall means encompassing the first wall means therein are disposed within a boiler casing to form a combustion chamber inside of the first wall means, each of the wall means comprising an outer wall and inner wall to form a space therebetween which is coupled with the both chambers to allow communication therebetwe...

A hydraulic motor unit is provided wherein a bent axis type axial piston motor having a high operating efficiency is incorporated while the compactness of the unit is maintained. The dimensional features of this invention are attained, in one aspect, from a special arrangement in which a multiple-plate type hydraulically actuated brake unit is disposed in an intermediate position between bearings supporting an output shaft of the hydraulic motor. Another aspect of such dimensional features of th...

A process is disclosed in which a waste gas containing sulfur compounds and carbon dioxide from pulp mill is contacted with an aqueous alkali solution derived from green liquor, white liquor or weak white liquor having low pH value and low sodium ion concentration and having been oxidized, whereby the sulfur compounds are absorbed as completely as possible with minimal absorption of carbon dioxide in the waste gas.