DE16054C - New apparatus for washing hard granular bodies without destroying them - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 89: Sugar and starch production.

Patented in the German Empire on May 31, 1881.

The apparatus is primarily intended for washing animal charcoal in sugar factories, however, it can also be used to advantage for washing other hard, granular bodies.

It is shown in FIG. 1 in a view, in FIG. 2 in a longitudinal section and in FIG. 3 in one Top view shown.

It consists of an iron, metal or wooden cylinder A with two cambered lids a a. B is a cast iron sleeve with two nozzles bb, to which the pipes b ¹ b ¹ are screwed for the inlet and outlet of steam, water or other liquids.

The following device is used to push the granular bodies out of the mortar D into the cylinder A:

The pipe TT is screwed onto the inner socket t; An iron, perforated sieve S is located above the nozzle t , which serves to climb over and evenly distribute the air or the gases which come under this sieve. The double sieve UU is arranged to the hole of the upper wire with the DAF the lower corr _v espondirt. A dense, copper wire screen is inserted between these screens, which prevents small grains from getting under the screen UU ; the inner tube T is placed and fastened at the top by three screws d ¹ d ¹ d ¹ and closed by means of valve dd.

The tap K is used to connect the device to the air pump; the degree of air. Dilution is indicated by vacuum meter V. O is the manhole for filling, inspection and repair of the apparatus, P a manhole for emptying the washed bodies, JS ¹ a valve for admitting the steam from below, H a valve for admitting steam through the pipe b ¹ from below below the sieves SS and UU, M a valve for admitting water or other liquids also under the sieves SS and UU, Y a valve for admitting air under the sieve SS, E a valve for admitting heated air for drying the washed bodies, C a nozzle with a tap to let in the washing liquid.

The animal charcoal, after having been washed in fermentation vats with warm water, is either thrown into the apparatus through the manhole O or, if the air pump is sufficiently powerful, poured directly into the mortar D. In the latter case, all valves, cocks and manholes must be closed; then the valve d and the tap K are opened and, as soon as the spring manometer V shows 3 to 4.3 m, the grain in the tube TT begins to lift and slide and falls on the sieve U U. The completion of the filling hangs on the number of hectoliters poured into the mortar D , and the clerk soon becomes aware of it through experience. The grain must be heaped up in such a way that 30 cm and no longer remain free from its surface to the upper edge of the tube T.

After completion of the filling of the apparatus, water is slowly admitted by means of the valve M , and the greatest possible distribution is sought so that the carbon pores are uncovered; as soon as the water becomes visible in the opening of the mortar D , the air

opened valve Y , by means of which the external air enters through the sleeve B under the sieves .S, S and UU ; it goes through between the grains, throws them over and over one another, steps on the surface and goes to the air pump; at this moment the dirty water overflows into the pipe TT and into the mortar D and comes into the drainage channel.

The completion of the washing is determined by the degree of purity of the water leaving the mortar D.

To cook the grain through in water or other liquids, K is closed, the inflow of water is reduced by means of valve M , and steam is let in through valve H. Afterwards one can step downwards from above to force the steam through; while all the valves and cocks are closed and left open only the tap C, and through the valve B ¹ was läfst the steam until the time come when dry by the Hahn C steam comes out.

Drying can then be carried out by means of strongly heated air in specially constructed calorifers. The heated air enters through the valve E under the sieve UU and is drawn off from the air pump through the open cock K.

Claims (2)

Patent Claims: 1. The process, granular, hard bodies, especially animal charcoal, in airtight closed and with the necessary devices for the inlet and outlet of air, steam and water or other liquids and apparatus provided for pumping out the air by successively submerging that to be washed Materials, blowing air from the bottom up and forcing through Steam clean from top to bottom. 2. A cleaning apparatus for hard, granular bodies, consisting of an airtight, closable vessel A, into which the material to be washed can be lifted by means of air pressure through a pipe attached inside the vessel so that the material from the upper end of this pipe to the lower end Sieves UU attached to part of the apparatus fall, in combination with the valves, taps and pipes necessary for the inlet and outlet of air, steam and water or other liquids, the sleeve B with the two pipe connections bb and air distribution sieve S. For this purpose ι sheet of drawings.