Bergwerksverband Gmbh

Peter Schulz

Knut Vaupel

Jurgen Klein

Harald Juntgen

Gunther Gappa

Juergen Klein

A fluidized-bed reactor composed of modular steel castings is assembled from a support frame, a sliding frame and reactor housing segments on the frames so as to be able to withstand the temperatures and temperature gradients to which the reactor may be subject.

Fluidized bed reactor having a housing case from steel

A method of and an apparatus for the regeneration of adsorbent particles containing carbon in which the particles are introduced into downwardly moving shafts of a fluidized quartz sand bed spaced along a regenerator and are then deflected downwardly at the bottoms of the shaft by rhomboidal guide segments. The regenerated particles are withdrawn in a gas stream from above the bed and the gas is separated from the particles.

Method of and apparatus for the thermal regeneration of adsorbents

In a method for regeneration of moist powder adsorption agent, the moist-charged adsorption agent is first fed into the lower area of a fluidized bed which is provided with an aeration and heat-carrying material; the agent then is fed upwardly through the heat-carrying material while being simultaneously dried, and then the agent is withdrawn together with the vortex gas from the fluidized bed. The agent is separated from the vortex gas in a successively switched separator, and is then fed to a further fluidized bed which is provided with a further aeration and heat-carrying material. The agent is fed in that further bed upwardly through the further heat-carrying material and is simultaneously regenerated. The agent is then discharged together with the further vortex gas from the further fluidized bed. The vortex gases which are withdrawn can be reused as mixing gases during the vortex gas generation. The adsorption agent can be mixed with a sludge, for example, from a sewage treatment plant, which, if necessary, is gasified together with the substances of the adsorption agents in the regeneration step.

Method for regeneration of moist powder adsorption agents

A slurry of solid particles suspended in water or some other liquid is elevated in a riser tube, extending upward from a closed vessel, under hydraulic pressure from the same liquid descending into the vessel from a hydrostatic column whose height is less than that of the riser tube; liquid exiting at the top of that tube is recirculated to the vessel through the column after being freed from the accompanying solids. The excess height of the riser tube is made possible by the admission of bubbles of air or some other gas into the tube at its lower end. Fresh particles to be entrained by the rising liquid are fed into the closed vessel via a gated conduit maintaining the hydrostatic pressure therein.

System for pumping suspended particles upward

A bottom for a fluidized bed conveyor is composed of a plurality of members provided with openings and located in contact with each other so that their points of contact are gas impermeable at least during operation of a fluidized bed. The openings may be formed as circumferentially closed holes and/or as laterally open recesses. The members may laterally abut against each other, or may be provided with interengaging lateral projections. The members may be located so that at cold temperatures small intermediate spaces remain therebetween, which spaces are closed during operation as a result of thermal expansion of the members under the action of high working temperatures. Bracing element or elements may be provided which urge the members toward one another.

Bottom for fluidized bed

The floor in a whirl (i.e. fluidizing) chute for treating solid particles in a vortex of gas advancing in longitudinal direction of the chute comprises a grate for introducing into the chute the whirling gas to impart to the particles a whirling motion in vertical direction and to advance the whirling particles in longitudinal direction, and at least one layer of filling bodies arranged on the grate in the direction of advance of the particles whereby the size of the filling bodies and the height of the layer is adjusted according to desired whirling speed of the treated particles.

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Essen, Germany

Peter Schulz