CS232233B1 - Apparatus for holding surface hight of fluid layer in coupled fluid vessels - Google Patents

Abstract

The invention relates to a maintenance device level of fluidized bed in continuous fluid containers. The essence lies in that the fluidized bed (15) and higher level (2) in the first fluid vessel (1) fluidized bed (16) 8 lower level (4) in the second closed fluid vessel (3). Evaluation block (7) is connected by pipes (5 and 6) and spaces above the fluidized bed (15a) 16) and the control block (8). The control block (8) is connected to the valve (10), which is connected by a pipe (9) and above the fluidized bed (16) with lower level (4) and on the valve outlet pipe (11). Supply pipe (5) from the fluidized bed (15) and higher level (2) to the evaluation block (7) is connected to the valve (13) a source of pressurized fluid (14).

Description

(54) A device for maintaining the level of the fluidized bed in continuous fluid vessels

The invention relates to a device for maintaining the level of a fluidized bed in continuous fluid vessels. The principle is that the fluidized bed (15) and the higher level (2) in the first fluidized bed (1) are interconnected and the fluidized bed (16) is connected with the lower level (4) in a second closed fluidized bed (3). The evaluation block (7) is connected by pipes (5 and 6) and the spaces above the fluidized bed (15 and 16) and at the same time to the control block (8). The control block (8) is connected to the armature (10), which is connected by a pipe (9) and a space above the fluidized bed (16) with a lower level (4) and the outlet pipe (11) is connected to the armature. The supply line (5) of the fluidized bed (15) and the higher level (2) to the evaluation block (7) is connected via a fitting (13) to a source of pressure fluid (14).

- 1 232 233

The invention relates to a device for maintaining the level of a fluidized bed in continuous fluid vessels. In particular, there is provided a device in which another fluid layer flows out of the fluidized bed below the surface of the fluidized bed into a closed fluidized bed in which there is greater fluid pressure above the surface of the fluidized bed than above the surface of the fluidized bed in the fluidized bed.

So far, it has been solved to maintain the required overpressure above the fluidized bed level in the trough, for example by introducing fluidized fluid from the space above the fluidized bed to a suitable level below the fluidized bed level in the fluidized bed. If, however, the fluid vessel also serves to sort particles, for example, the introduction of another fluid fluid into the fluid vessel will interfere with or prevent the fluidization of the fluid vessel.

These disadvantages are overcome by a device for maintaining the level of the fluidized bed in continuous fluid vessels according to the invention. The principle of the device according to the invention consists in that the fluid layer with a higher level in one fluid vessel is connected with the fluid layer with a lower level in the other closed fluid vessel, wherein the evaluation block is connected by a pipeline with spaces above the fluid layers and simultaneously with the control block connected with a fitting which is connected by a duct to a space above the fluidized bed of a lower level and connected to an outlet duct.

The basic advantage of the device according to the invention is that maintaining the level in continuous fluid vessels is achieved without compromising other functions of the fluid vessels, such as particle sorting.

2, 232 233, respectively, are shown in longitudinal section of two interconnected fluid vessels. In the fluid vessel 1 there is a fluid layer with a higher level? and in the fluid vessel 3 there is a fluid layer with a lower level 4. The two fluid layers 15 and 16 are interconnected. The space above the fluidized layer 16 with a lower surface 4 of which is connected via conduit 9 and valve 10 to the outlet line 11. The evaluation block 7 line 6 is connected to the space above the fluidized layer 16 with a lower surface 4 of the pipe 2 and ^{with the} space of the fluidized bed 13 with a higher level 2. At the same time, the evaluation block 7 is connected to the control block 8. This control block 8 is connected to the armature 10. A pipe 12 connected via the armature 13 to the pressure fluid source 14 can be connected to the pipe 2.

The device according to the invention operates in such a way that the evaluation block 7 compares the pressure in the space above the fluidized bed 16 with the lower level 4 and the fluidized bed 15 with the higher level 2. If the deviation from the selected ratio, difference or sum of these pressures a control block 8 that closes or opens the armature 10 and thereby maintains a pressure above the surface of the fluidized bed 16 at a lower level 4 corresponding to the properties and desired height of the fluidized bed at a lower level 4. a small amount of fluidizing fluid which is bubbled through line 2 ^{into the} fluidized bed with a higher level 2 and prevents it from clogging and clogging.

The device is particularly suitable for the preparation and transport of fuel for a fluidized bed hearth with fluidized bed sorting.

Claims (1)

SUBJECT OF THE INVENTION 232 233 An apparatus for maintaining the level of a fluidized bed in continuous fluid vessels characterized in that the fluidized bed (15) with a higher level (2) in the first fluidized bed (1) is connected to the fluidized bed (16) with a lower level (4) in a second closed fluid vessel (3), wherein the evaluation block (7) is connected by pipes (5 and 6) to the spaces above the fluid layers (15 and 16) and at the same time to the control block (8) connected to the armature (10) is connected via a duct (9) to the space above the fluidized bed (A6) with a lower level (4) and is connected to the outlet duct A1).