Abstract: A device for monitoring the hollow filter components employed to filter hot and dusty gases. The components are grouped inside a filter housing (1). The components communicate through supply lines (9) with collectors ( 10). The collectors convey the filtered gas away. The line supplying each group accommodates a lance (15). The lance injects a fluid for sweeping the components clean. A transducer (16) downstream of the filter components detects the pressure of the filtered gas in the line. A change in pressure reveals a malfunction.

Abstract: A burner lance for atomizing a suspension of coal in water by means of an atomizing gas. The lance consists of an inner pipe (1) that the suspension flows through, of an outer pipe (2) radially surrounding the inner pipe and leaving a gap (5) that the atomizing gas flows through, and of a nozzle (10) that narrows in the direction the suspension flows in and communicates with both the inner and the outer pipe. The outer pipe extends along the burner beyond the inner pipe and accommodates a nozzle (10) in that section. The outside diameter of the nozzle equals the inside diameter of the outer pipe. The nozzle tapers at a central angle of 35.degree. to 45.degree. and terminates in a concentric exit (11).

Abstract: A device for cooling hot gases deriving from incomplete oxidation in a reactor and loaded with solids. A pressurized vessel (2) accommodates a refrigerator (1) made of cooled pipe-slab walls at the top and a water bath (6) for quench cooling at the bottom. A gas outlet (8) extends out of the refrigerator (1). Another gas outlet (13) extends out of the bath. The outlets can be independently blocked. The vessel also accommodates a gas-collecting section (7) upstream of the first gas outlet (8) and another gas-collecting section (12) upstream of the second gas outlet (13).

Abstract: A reactor (7) for gasifying materials that contain carbon under pressure has a tube wall (20) that has coolant flowing through it and is lined with a refractory material (21). The outlet (9) from the reactor (7) points down and opens into a cooler (10). The reactor is accommodated in a pressurized vessel (1) along with the cooler (10) and can be released and removed independently.

Abstract: A tube mill with a cylindrical jacket (1) terminating at each end in a conical wall (2). The wall merges into a neck (3). A tube (6) is accommodated at a radial interval in a stationary milling-stock intake-and-outlet housing (5). The tube is attached to the neck. The tube is surrounded by a feed screw (12). The screw's threads (13) are loosely attached to the tube. The screw is connected to a shaft (9). The shaft is mounted in a bearing (18) outside the mill. The object is to improve the suspension of the feed screw to the extent that the bearing will be able to accommodate eccentric rotation by, and sudden and uncontrolled stresses on, the screw along with axial displacements of the shaft. The housing (19) for the bearing is accordingly surrounded at a radial interval by a continuous ring (22). The housing rests against the ring by way of several tensioned springs (23) uniformly distributed around the circumference of the housing.