RU184380U1 - AIR SUPPORTING DEVICE FOR A ROTATING SPEAKER - Google Patents

Abstract

The utility model relates to devices for burning solid fuels and can be used in heat and power, chemical and other industries. The technical result of the proposed utility model is an increase in the uniformity of air supply. The technical result is achieved by the fact that the air supply device into a rotating grate with a sector drum mounted between the vertical walls of the body in the form of two concentric drums, separated by radial ribs, contains a plate with a hole, mounted perpendicular to the axis of rotation of the drum, the hole is connected by air flow with the air supply pipe, characterized by the fact that between the hole in the plate and the feed pipe is located collector, the cross section of the collector is not less than the size of the hole and is larger than the cross section of the supply pipe. The dimensions of the plate with a hole in the side parts can be larger than the size of the hole by at least the distance between the ribs of the drum. The dimensions of the plate with a hole in the radial direction may be greater than the dimensions of the distance between the concentric cylinders. The clamp to the drum may consist of a clamping plate, on one side of which a clamping finger is located, the second end of the clamping plate is rigidly fixed on the vertical wall of the housing. The end of the pressure plate closest to the finger can be spring-loaded - fixed on the screw with a spring between the screw head and the plate. The proposed design solution can be successfully used to supply air to the sector rotating drums for burning fuel.

Description

The utility model relates to devices for burning solid fuels and can be used in heat and power, chemical and other industries.

The “Hollow Drum Grate” DE 600546 is known, to which air is supplied from the side, the hollow drum is divided by radial longitudinal walls into internal channels that receive air through corresponding spaced holes in the transverse walls.

The disadvantage of this device is the increased dimensions of the device, due to the necessity of capital construction of the furnace.

The closest technical solution is the “Waste incinerator” DE 1176783, which includes an air supply device into a rotating grate with a sector drum in the form of two concentric drums, separated by radial ribs, containing a plate, with a hole installed perpendicular to the axis of rotation of the drum, the hole is connected along the air flow from the air supply pipe.

The device does not need capital construction.

The disadvantage is the lack of uniformity of air supply in the sector of the rotating grate, due to the discrepancy between the cross section of the supply pipe and the geometry of the optimal air supply sector.

The technical result of the proposed utility model is to improve the uniformity of air supply.

The technical result is achieved by the fact that the air supply device into a rotating grate with a sector drum installed between the vertical walls of the body in the form of two concentric drums, separated by radial ribs, contains a plate with a hole, installed perpendicular to the axis of rotation of the drum, the plate is mounted with a clip to the drum end surface, the hole is connected by air flow with the air supply pipe, characterized by the fact that between the hole in the plate and the feed pipe is located the collector, the cross section of the collector is not less than the size of the hole and is larger than the section of the supply pipe.

The dimensions of the plate with a hole in the side parts can be larger than the size of the hole by no less than the distance between the ribs of the drum, which will eliminate the parasitic air flow between the collector and the surrounding space through the plate sectors partially located opposite the hole, of the drum sector. The drum sector is bounded by adjacent radial ribs, outer and inner drums.

The dimensions of the plate with a hole in the radial direction can be larger than the dimensions of the distance between concentric cylinders, which will ensure tightness between the plate with the hole and the cylinders of the drum bounding the sector.

The clamp to the drum may consist of a clamping plate with one side of which the clamping finger is located, the second end of the clamping plate is rigidly fixed on the vertical wall of the housing. The end of the pressure plate closest to the finger can be spring-loaded - fixed on the screw with a spring between the screw head and the plate. The design of the clamp is quite simple and allows you to adjust the pressing force of the plate to the end of the drum.

The air supply to the rotating grate is shown in: FIG. 1 (side view with a sector drum), FIG. 2 (general view), FIG. 3 (side view), FIG. 4 (front view), FIG. 5 (a fragment of a cross-section with a drum), FIG. 6 (side view with a clamping device), where:

1 - vertical walls of the housing;

2 - the outer cylinder;

3 - the inner cylinder;

4 - radial ribs;

5 - plate with a hole;

6 - air supply pipe;

7 - collector;

8 - pressure plate;

9 - finger pressure plate;

10 — end of the pressure plate rigidly connected to the housing;

11 - the spring end of the pressure plate.

The device operates as follows: in the case 1 a rotating grate is installed containing an outer cylinder 2 and an inner cylinder 3, radial fins 4 are located between the cylinders. A plate 5 with a hole adjoins the end wall of the rotating grate between the inner 3 and outer 2 cylinders, hermetically the edges connected to the collector 7, which, in turn, is hermetically connected to the air supply pipe 6. The shape of the plate 5 with a hole corresponds to the overlap of the annular platform of the entrance sectors of the drum, limited to The inner and inner cylinders of the drums and the vertical walls of the working channels, on the outer surface of the segments of which are burning fuel and are generally arched along the ring segment. The collector 7 is pressed by the pressure plate 8 with the finger 9 of the pressure plate 8. The pressure plate 8 is rigidly connected to the vertical walls of the housing 1 by the end 10 of the pressure plate 8, and the end 11 is spring-loaded both by the spring properties of the plate and by the spring-end screw with spring . The finger 9 presses the air supply device into the rotating grate and, accordingly, the plate with a hole to the drum, which increases the reliability and efficiency of the air supply unit.

The technical result is an increase in the uniformity of the air supply due to the presence of an air supply collector that evenly distributes the air flow between the hole in the plate and the air supplying pipe.

Industrial Applicability

 The claimed design solution can be successfully used to supply air to the sector rotating drums for burning fuel.

Claims (4)

1. A device for supplying air to a rotating grate with a sector drum installed between the vertical walls of the body in the form of two concentric cylinders separated by radial ribs, containing a plate with a hole installed perpendicular to the axis of rotation of the drum, the plate mounted against the drum end surface, the hole is connected along the air flow with the air supply pipe, characterized in that between the hole in the plate and the feed pipe is a collector, the cross section of the collector is not enshe hole sizes and larger cross-section of the feed pipe. 2. The device according to claim 1, characterized in that the dimensions of the plate with a hole in the side portions are larger than the dimensions of the hole by at least the distance between the ribs of the drum. 3. The device according to claim 1, characterized in that the dimensions of the plate with a hole in the radial direction are larger than the dimensions of the distance between the concentric cylinders. 4. The device according to claim 1, characterized in that the clamp to the drum consists of a clamping plate, on one side of which a clamping finger is located, the second end of the clamping plate is rigidly fixed on the vertical wall of the housing.