Glass kiln rake-type soot blower sealing structure

Abstract

The utility model discloses a kind of sealing structure of glass kiln rake type soot blower, mainly by mounting seat, sealing assembly and flow guide component constitute. Sealing assembly adopts half-cylinder design of opposite opening type, inside is equipped with half-circular inner plate with flow guide groove and sealing element, and two ends are closed by sealing plate and fixed ring. After two half-cylinders are fixed, form a annular cavity that accommodate compressed air. Flow guide component includes flow guide plate with slope surface structure, and form blow gap between telescopic blow pipe. When working, the compressed air that is imported from outside passes through cavity, flow guide groove and flow guide hole, finally from the gap between slope surface end and blow pipe, form a "air curtain" that insulates cold air into reactor, can reduce damage to equipment.

Description

Technical Field

[0001] This utility model relates to a sealing structure for a rake-type soot blower in a glass kiln, belonging to the field of sealing technology. Background Technology

[0002] Surface cleaning of SCR denitrification catalyst in glass furnaces typically employs a rake-type soot blower. A telescopic blowpipe passes through the reactor shell and moves forward and backward at a constant speed during operation. To ensure smooth operation and prevent jamming, a gap is maintained between the blowpipe and the reactor shell, allowing a significant amount of cold air to enter the reactor. This cold air intake may generate trace amounts of condensate at the reactor shell, mixing with fly ash inside to form accumulated ash. Over time, this ash buildup can corrode the shell, potentially causing equipment damage. Utility Model Content

[0003] The purpose of this invention is to provide a sealing structure for a glass kiln rake-type soot blower, which reduces the amount of cold air entering the reactor from the gap between the telescopic blowpipe and the reactor shell, thereby reducing damage to the equipment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A sealing structure for a rake-type soot blower in a glass kiln includes a mounting base coaxially arranged for a telescopic blowpipe to pass through, a sealing assembly, and a flow guiding assembly. The mounting base is installed outside the reactor shell and corresponds to the through hole on the reactor shell for inserting the telescopic blow pipe; The sealing assembly is installed at the front end of the mounting base and includes two semi-cylinders with openings facing each other. Side plates for fixing the two semi-cylinders are provided on the side walls of the two semi-cylinders. Each semi-cylinder has a sealing plate at its rear end for sealing the gap between the semi-cylinder and the rear end of the telescopic blowpipe and for fixing to the mounting base. Each semi-cylinder has a fixing ring at its outer end for sealing the gap between the semi-cylinder and the front end of the telescopic blowpipe. Each semi-cylinder is provided with a semi-circular inner plate. Multiple guide grooves are formed on the plate body of the semi-circular inner plate, which extend along the length direction and are recessed towards the telescopic blow pipe. A sealing element for sealing is provided between the semi-circular inner plate and the telescopic blow pipe. A groove for the guide groove to be embedded is formed on the sealing element. The flow guiding assembly includes two semi-annular flow guiding plates. The outer edge of the flow guiding plate is fixedly connected to the corresponding fixing ring, and the inner edge forms a slope structure that extends towards the front end and forms a spray gap with the telescopic spray pipe. After the two semi-cylinders are fixed together, an annular cavity is formed between them, the inner plate of the semi-circle, the sealing plate, and the fixing ring. An air inlet pipe is provided on one of the semi-cylinders, which is connected to the external compressed air supply pipe and communicates with the cavity. Multiple connecting guide grooves and guide holes for the gap between the slope structure and the telescopic blow pipe are opened on the fixing ring at an angle toward the telescopic blow pipe.

[0005] Preferably, the inner and outer ends of the mounting base are respectively provided with mounting plates for fixing to the reactor shell and for fixing to the sealing plate, and the mounting plates are provided with waist-shaped holes.

[0006] Preferably, a valve is installed on the air intake pipe, and a short connecting pipe is provided on the valve. The short connecting pipe is connected to the external compressed air supply pipe through a flexible hose, and the flexible hose is fixed to the short connecting pipe and the external compressed air supply pipe through a clamp.

[0007] The beneficial effects of this utility model are as follows: After the sealing structure is installed, the two semi-cylinders and the space between them form an annular structure. The sealing plate and fixing ring at the end of each semi-cylinder will seal the end of the annular structure, thus forming an annular cavity. The gas supplied through the external compressed air supply pipe will enter the gap between the slope structure and the telescopic jet pipe through the guide hole, and will be ejected outward through the gap between the end of the slope structure and the telescopic jet pipe to form an "air curtain", which can then prevent external cold air from entering the reactor.

[0008] Meanwhile, the supplied compressed air can also carry away the heat inside the sealing assembly, reducing the aging effect on the seals and extending their service life. Furthermore, the aforementioned sealing assembly adopts a modular structure, facilitating subsequent disassembly and maintenance. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view of the sealing structure; Figure 2 This is a front sectional view of the rear end of the sealing assembly; Figure 3 This is a schematic diagram of the semi-circular inner plate structure; Figure 4 This is a schematic diagram of the sealing component.

[0010] The meanings of the main reference numerals in the figure are as follows: 1. Telescopic jet pipe, 2. Mounting base, 3. Sealing assembly, 4. Flow guiding assembly, 5. Mounting plate, 6. Waist-shaped hole, 7. Semi-cylinder, 8. Side plate, 9. Sealing plate, 10. Fixing ring, 11. Semi-circular inner plate, 12. Flow guiding groove, 13. Seal, 14. Settlement groove, 15. Flow guiding plate, 16. Sloping structure, 17. Air inlet pipe, 18. Valve, 19. Short pipe, 20. Flow guiding hole. Detailed Implementation

[0011] This embodiment provides a sealing structure for a rake-type soot blower in a glass kiln. (See also...) Figure 1-4 As shown, it includes a mounting base 2 coaxially arranged and through which the telescopic jet pipe 1 passes, a sealing assembly 3, and a flow guiding assembly 4.

[0012] like Figure 1 As shown, the mounting base 2 is installed outside the reactor shell and corresponds to the through hole on the reactor shell for inserting the telescopic jet pipe 1; the inner and outer ends of the mounting base 2 are provided with mounting plates 5, and the mounting plates 5 are provided with waist-shaped holes 6; and the mounting plate 5 located at the front end of the mounting base 2 is provided with a through hole for the telescopic jet pipe 1 to pass through (the through hole on the mounting plate 5 is coaxially set with the mounting base 2).

[0013] The sealing assembly 3 is installed at the front end of the mounting base 2 and includes two semi-cylinders 7 with their openings facing each other. Side plates 8 are provided on the side walls of the two semi-cylinders 7 for fixing the two semi-cylinders 7. The two semi-cylinders 7 are connected into a cylindrical (circular) structure by bolts passing through the corresponding side plates 8. At the rear end of each semi-cylinder 7, a sealing plate 9 is provided to close the gap between the semi-cylinder 7 and the rear end of the telescopic blowpipe 1 and is fixed to the mounting base 2 (the sealing plate 9 has a waist-shaped hole 6 corresponding to the waist-shaped hole 6 on the mounting plate 5 at the front end of the mounting base 2). At the outer end of each semi-cylinder 7, a fixing ring 10 (semi-annular structure) is provided to close the gap between the semi-cylinder 7 and the front end of the telescopic blowpipe 1. Each semi-cylinder 7 is provided with a semi-circular inner plate 11 (made of heat-conducting material, with the opening of the semi-circular inner plate 11 facing the telescopic blow pipe 1, and both ends welded to the corresponding side sealing plate 9 and fixing ring 10 as a whole). Multiple guide grooves 12 extending along the length direction and recessed towards the telescopic blow pipe 1 are formed on the plate body of the semi-circular inner plate 11. A sealing element 13 for sealing is provided between the semi-circular inner plate 11 and the telescopic blow pipe 1. A recessed groove 14 for the guide grooves 12 to be embedded is formed on the sealing element 13.

[0014] The flow guiding assembly 4 includes two semi-annular flow guiding plates 15. The outer edge of the flow guiding plate 15 is fixedly connected to the corresponding fixing ring 10, and the inner edge forms a slope structure 16 that extends towards the front end and forms a spray gap with the telescopic spray pipe 1. After the two semi-cylinders 7 are fixed together, an annular cavity is formed between them, the semi-circular inner plate 11, the sealing plate 9, and the fixing ring 10.

[0015] An air inlet pipe 17 is provided on one of the semi-cylinders 7. A valve 18 is installed on the air inlet pipe 17, and a short connecting pipe 19 is provided on the valve 18. The short connecting pipe 19 is connected to an external compressed air supply pipe via a flexible hose. The two ends of the flexible hose are respectively fitted onto the short connecting pipe 19 and the external compressed air supply pipe and fixed with clamps. Multiple connecting guide grooves 12 and guide holes 20 are provided on the fixing ring 10 at an angle towards the telescopic blow pipe 1 to guide the gap between the slope structure 16 and the telescopic blow pipe 1.

[0016] After the sealing structure is installed, the two semi-cylinders 7 and the space between them form an annular structure. The sealing plate 9 and fixing ring 10 at the end of each semi-cylinder 7 seal the end of the annular structure, thus forming an annular cavity (the whole structure is a modular design, which is convenient for later disassembly and replacement of the seal 13). At this time, the compressed air intake is adjusted by valve 18. The compressed air enters the annular cavity and enters the gap between the slope structure 16 and the telescopic jet pipe 1 through the guide hole 20. Finally, it is ejected outward through the gap between the end of the slope structure 16 and the telescopic jet pipe. The ejected compressed air forms an "air curtain" around the telescopic jet pipe 1, which can then prevent external cold air from entering the reactor. At the same time, the compressed air passes through the guide groove 12, which is embedded in the seal 13. This allows the compressed air to carry away as much heat as possible from the high temperature inside the reactor acting on the telescopic jet pipe 1 and being conducted to the seal 13 during operation. This reduces the aging effect on the seal 13 and extends its service life.

[0017] To ensure a good seal, a sealing gasket can be installed between the two connected side plates 8 in practical applications to prevent compressed air entering the annular cavity from being ejected through the gap between the side plates 8.

[0018] The above description is only a preferred embodiment of this utility model patent. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model patent, and these improvements and modifications should also be considered within the scope of protection of this utility model patent.

Claims

1. A sealing structure for a rake-type soot blower in a glass kiln, characterized in that, Includes a coaxially arranged mounting base through which a telescopic jet pipe passes, a sealing assembly, and a flow guiding assembly; The mounting base is installed outside the reactor shell and corresponds to the through hole on the reactor shell for inserting the telescopic blow pipe; The sealing assembly is installed at the front end of the mounting base and includes two semi-cylinders with openings facing each other. Side plates for fixing the two semi-cylinders are provided on the side walls of the two semi-cylinders. Each semi-cylinder has a sealing plate at its rear end for sealing the gap between the semi-cylinder and the rear end of the telescopic blowpipe and for fixing to the mounting base. Each semi-cylinder has a fixing ring at its outer end for sealing the gap between the semi-cylinder and the front end of the telescopic blowpipe. Each semi-cylinder is provided with a semi-circular inner plate. Multiple guide grooves are formed on the plate body of the semi-circular inner plate, which extend along the length direction and are recessed towards the telescopic blow pipe. A sealing element for sealing is provided between the semi-circular inner plate and the telescopic blow pipe. A groove for the guide groove to be embedded is formed on the sealing element. The flow guiding assembly includes two semi-annular flow guiding plates. The outer edge of the flow guiding plate is fixedly connected to the corresponding fixing ring, and the inner edge forms a slope structure that extends towards the front end and forms a spray gap with the telescopic spray pipe. After the two semi-cylinders are fixed together, an annular cavity is formed between them, the inner plate of the semi-circle, the sealing plate, and the fixing ring. An air inlet pipe is provided on one of the semi-cylinders, which is connected to the external compressed air supply pipe and communicates with the cavity. Multiple connecting guide grooves and guide holes for the gap between the slope structure and the telescopic blow pipe are opened on the fixing ring at an angle toward the telescopic blow pipe.

2. The sealing structure of the glass kiln rake soot blower according to claim 1, characterized in that, The inner and outer ends of the mounting base are respectively provided with mounting plates for fixing to the reactor shell and for fixing to the sealing plate, and the mounting plates are provided with waist-shaped holes.

3. The sealing structure of the glass kiln rake soot blower according to claim 1, characterized in that, A valve is installed on the intake pipe, and a short connecting pipe is installed on the valve. The short connecting pipe is connected to the external compressed air supply pipe through a hose, and the hose is fixed to the short connecting pipe and the external compressed air supply pipe through a clamp.

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