High-temperature liquid slag granulating system

Abstract

A liquid slag granulating system includes a granulator (1), a granulator connecting part and a granulator drive part. The granulator (1) is disc-shaped or cup-shaped, and a diversion cone is arranged at a center of the granulator (1). The granulator drive part drives the granulator to rotate, thus granulating liquid slag. The system further includes an air supply part.

Claims

1. A liquid slag granulating system, comprising a granulator (1), a granulator connecting part, a motor (10) and an air supply part, wherein: the granulator (1) is disc-shaped or cup-shaped, a diversion cone (2) is arranged at a center of the granulator, fins (13) are arranged between the diversion cone and an outer edge of the granulator; the granulator (1) is connected with the motor (10) through the granulator connecting part, the motor (10) is configured to drive the granulator (1) to rotate through the granulator connecting part so as to granulate liquid slag which flows into the granulator (1) into droplets; the air supply part comprises an air duct outer sleeve (7) and an air duct inner sleeve (8) coaxially aligned with the air duct outer sleeve 7 both of which are different from each other in outer diameter, a shaft sleeve (9) is fixed with the air duct inner sleeve (8) through an annular end cover (5) at a bottom of the shaft sleeve (9); an annular air port (11) is provided at a top portion of the air supply part.

2. The liquid slag granulating system, as recited in claim 1, wherein: the annular air port (11) is located at an outer periphery of the granulator (1), an air-out angle between an air-out direction of the annular air port (11) and a horizontal plane is in a range of 15 to 60 degrees.

3. The liquid slag granulating system, as recited in claim 1, wherein: the annular air port (11) is located below an outer edge of the granulator.

4. The liquid slag granulating system, as recited in claim 1, wherein: the shaft sleeve has cooling air holes (15) at two sides of the two thrust bearings (4).

5. The liquid slag granulating system, as recited in claim 1, wherein: the granulator connecting part comprises a granulator base (2), a shaft (3) and two thrust bearings (4); the granulator (1) is fixedly connected with the granulator base (2), the granulator base (2) is fixedly connected with the shaft (3), the shaft (3) is fixed with a shaft sleeve (9) through the two thrust bearings (4) and simultaneously connected with the motor (10) through a coupling (14).

6. The liquid slag granulating system, as recited in claim 1, wherein: an angle between an outer edge of an upper surface of the granulator (1) and a horizontal plane is in a range of 15 to 60 degrees.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention is further described with accompanying drawings and embodiments in detail as follows.

(2) FIG. 1 is a schematic view of a granulating device for granulating liquid slag and recovering part of heat; and

(3) FIG. 2 is a partial enlarged diagram of Section A of FIG. 1.

(4) In the drawing, 1: granulator; 2: granulator base; 3: shaft; 4: thrust bearing; 5: annular end cover; 6: fixing sleeve and plate; 7: air duct outer sleeve; 8: air duct inner sleeve; 9: shaft sleeve; 10: motor; 11: annular air port; 12: diversion cone; 13: fin; 14: coupling; 15: cooling air hole.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(5) Referring to the drawings, a high-temperature liquid slag granulating system is illustrated, which comprises a granulator 1, a granulator connecting part, a granulator drive part, an air supply part and an auxiliary device.

(6) The granulator 1 is disc-shaped or cup-shaped, a diversion cone 12 is arranged at a center of the granulator 1, fins 13 are arranged between the diversion cone and an outer edge of the granulator 1; an angle between an outer edge of an upper surface of the granulator 1 and a horizontal plane is in a range of 15 to 60 degrees; the granulator connecting part comprises a granulator base 2, a shaft 3 and two thrust bearings 4; the granulator 1 is connected with the granulator base 2 through bolts, the granulator base 2 is connected with the shaft 3 through bonds; the shaft 3 is connected with a shaft sleeve 9 through the thrust bearings 4, and simultaneously connected with a motor 10 through a coupling 14; the air supply part comprises an air duct outer sleeve 7 and an air duct inner sleeve 8 coaxially aligned with the air duct outer sleeve 7 both of which are different from each other in outer diameter, the shaft sleeve 9 is fixed with the air duct inner sleeve 8 through an annular end cover 5 at a bottom of the shaft sleeve 9; an external wall of the air duct outer sleeve 7 is fixed with a fixing sleeve and plate 6; an annular air port 11, provided at a top portion of the air supply part, is located at an outer periphery of the granulator 1, an air-out angle of the annular air port is as same as the angle of the granulator, that is, the air-out angle between an air-out direction of the annular air port and the horizontal plane is in the range of 15 to 60 degrees.

(7) Both the air duct inner sleeve 8 and the shaft sleeve 9 have the annular air port, and the shaft sleeve 9 has cooling air holes 15 at two sides of the two thrust bearings 4.

(8) The liquid slag in the slag ladle enters the granulation bin with a certain amount of rate of flow through the slag pipe under the control of the stopper rod, and falls on the granulator 1, and the high-speed rotating granulator 1 granulates the liquid slag which flows into the revolving cup into small droplets, the small droplets splash into the large space of the granulation bin; during the flight of small droplets, under the double cooling effect of the heating surface of the granulation bin and the annular wind of the granulator, the small droplets become slag particles with a hard outer surface

(9) It should be noted that the above embodiment is only for illustrating the present invention and is not intended to limit the technical solution described in the present invention; therefore, although the present specification has been described in detail with reference to the various embodiments described above, it should be understood by those skilled in the art that the present invention may be modified or equivalently substituted; and all the technical solutions and improvements without departing from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.