Sealing device of sand blasting angle adjusting mechanism

Abstract

The utility model discloses a sealing device of a sand blasting angle adjusting mechanism, the sealing device of the sand blasting angle adjusting mechanism comprises a nozzle used for blasting sand, the nozzle is used for spraying sand into a boiler flue, a rod body is telescopically arranged in the boiler flue, and the rod body is connected in a hole of the boiler flue through a sealing device. The sealing device comprises a sealing ring, and a hollow area of the sealing ring is used for containing lubricating grease used for lubricating the rod body. The sealing ring adopts a hollow area, so that the sealing performance of the rod body during movement in a flue is ensured, and lubricating grease is injected, so that the abrasion is reduced, the service life is prolonged, and the stable operation time and maintenance cost benefit of equipment are improved; a cleaning piece and a sliding cleaning block are introduced, a first spring automatically gets close to a rod body for cleaning, a channel is kept unblocked, and the service life of a sealing ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a sealing device of a sandblasting angle adjustment mechanism. Background Art

[0002] When the boiler is mixed with industrial waste, due to the high content of alkali metal elements such as sodium and potassium in the ash and the low ash melting point, it is easy to form ash deposits with strong adhesion on the heating surface at the rear of the boiler, reducing the thermal efficiency of the boiler and affecting the long-term operation of the boiler. Traditional cleaning methods usually rely on manual or shutdown cleaning, which is time-consuming, labor-intensive and inefficient. Therefore, developing a sandblasting cleaning method can improve the maintenance of the boiler flue, and at the same time, it is necessary to further control the sealing and lubrication problems of the rod body of the sandblasting component. Utility Model Content

[0003] The utility model aims at the deficiencies in the prior art and provides a sealing device for a sandblasting angle adjustment mechanism.

[0004] In order to solve the above technical problems, the utility model solves the problems through the following technical solutions: the sealing device of the sandblasting angle adjustment mechanism includes a nozzle for sandblasting, the nozzle is used to spray sand into the boiler flue, a rod body is telescopically arranged in the boiler flue, the rod body is connected to the hole of the boiler flue through a sealing device, the sealing device includes a sealing ring, and the hollow area of ​​the sealing ring is used to set grease for lubricating the rod body.

[0005] In the above scheme, preferably, a cleaning piece is provided in the boiler flue, and the cleaning piece is provided on the outside of the rod body.

[0006] In the above scheme, preferably, the cleaning piece includes a box body, a plurality of cleaning blocks are arranged in the box body, the cleaning blocks slide in the box body through a connecting rod, and the connecting rod and the box body are connected by a first spring.

[0007] In the above solution, preferably, under the action of the first spring, the cleaning block has a tendency to move toward one side of the rod body.

[0008] In the above solution, preferably, a plurality of support members are provided on the rod body and the boiler flue, and the support members are used to stabilize the rod body located in the sealing ring.

[0009] In the above scheme, preferably, the support member includes a sliding sleeve and a support rod, the support rod is slidably arranged in the sliding sleeve, the support rod is connected to the sliding sleeve through a second spring, and both ends of the support rod are rotatably connected to the outside of the boiler flue.

[0010] In the above solution, preferably, the sliding sleeve is rotatably connected to the outside of the boiler flue, and the supporting rod is rotatably connected to the end of the rod body.

[0011] In the above solution, preferably, the rod body is a hydraulic push rod or an electric push rod.

[0012] The beneficial effects of the utility model are as follows: the sealing ring adopts a hollow area, which not only ensures the sealing of the rod body when it moves in the flue, but also reduces wear and tear, extends the service life, and improves the stable operation time of the equipment and the cost-effectiveness of maintenance by injecting grease; the introduction of the cleaning piece and the sliding cleaning block automatically approaches the rod body for cleaning through the first spring, keeps the channel unobstructed, and increases the service life of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 for Figure 1 Enlarged view of point A.

[0015] Figure 3 This is a schematic diagram of the cooperation between the rod body and the support member of the utility model. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1-Figure 3 , the sealing device of the sandblasting angle adjustment mechanism, for the cleaning of the boiler flue 13, the heating surface of the boiler tail furnace forms ash with strong adhesion, which reduces the thermal efficiency of the boiler and affects the long-term operation of the boiler. Therefore, in this embodiment, the boiler is cleaned by sandblasting.

[0017] The component used for sandblasting is a nozzle 1, which is designed with a conical mouth to achieve efficient injection of sand into the boiler flue 13 for cleaning. At the same time, an adjustment structure is set on the opposite side of the nozzle 1, including a retractable rod body 2 and a baffle 15. The baffle 15 can achieve a wide range of coverage of the boiler flue 13 by changing the distance from the nozzle 1. For this, the rod body 2 needs to ensure that it is sealed and leak-free.

[0018] Inside the flue, a retractable rod 2 is introduced, and the rod 2 can be a hydraulic push rod or an electric push rod, which realizes automatic control of the rod 2 and further makes the sandblasting angle adjustment more accurate. The rod 2 moves in the boiler flue 13 as needed. Therefore, the rod 2 is connected to the hole 3 of the boiler flue 13 through a sealing device to achieve high sealing and mobility.

[0019] In this regard, the sealing device includes a sealing ring 4, which is designed with a hollow area 5. The hollow area 5 is provided with a grease 6 for easy injection to continuously lubricate the rod body 2, thereby ensuring reduced wear during movement, extending the service life and maintaining the sealing effect. At the same time, the sealing ring 4 in the hollow area 5 is divided into two sections to contact the rod body 2, thereby enhancing the sealing performance of the connection between the sealing ring 4 and the rod body 2.

[0020] Considering that dust or sand may be stuck on the rod body 2 when cleaning the boiler flue 13, thereby affecting the sealing ring 4 when extending and retracting, a cleaning piece is provided in the boiler flue 13. The cleaning piece needs to be provided on the outside of the rod body 2 so as to clean up possible accumulated foreign matter at any time to ensure that the passage is unobstructed.

[0021] The cleaning member comprises a box body 7, in which a plurality of slidable cleaning blocks 14 are arranged. The cleaning blocks 14 slide on the box body 7 through a connecting rod 8, and the cleaning blocks 14 are connected to the box body 7 through a first spring 9. The first spring 9 allows the cleaning blocks 14 to move toward one side of the rod body 2, thereby effectively cleaning the rod body 2 and allowing the rod body 2 to move to improve sealing.

[0022] Furthermore, the rod body 2 collapses to one side according to the movement, and a support is arranged outside the rod body 2, specifically, the support is arranged between the rod body 2 and the outside of the boiler flue 13, to ensure the stability of the rod body 2 in the sealing ring 4. The support includes a sleeve 10 and a support rod 11, the support rod 11 slides in the sleeve 10, and the two ends of the support rod 11 are rotatably connected outside the flue, providing adaptability to the movement of the rod body 2.

[0023] Specifically, the sliding sleeve 10 is rotatably connected to the outside of the flue, the support rod 11 is rotatably connected to the end of the rod body 2, and a second spring 12 is provided between the support rod 11 and the rod body 2. Thus, when the rod body 2 is moved, the rod body 2 stably slides in the sealing ring 4, thereby improving the service life of the sealing ring 4.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealing device for a sandblasting angle adjustment mechanism, characterized in that: It comprises a nozzle for sand blasting, the nozzle is used to spray sand into the boiler flue, a rod body is telescopically arranged in the boiler flue, the rod body is connected to the hole of the boiler flue through a sealing device, the sealing device comprises a sealing ring, and the hollow area of ​​the sealing ring is used to set grease for lubricating the rod body.

2. The sealing device of the sandblasting angle adjustment mechanism according to claim 1, characterized in that: A cleaning piece is arranged in the boiler flue, and the cleaning piece is arranged outside the rod body.

3. The sealing device of the sandblasting angle adjustment mechanism according to claim 2, characterized in that: The cleaning piece comprises a box body, in which a plurality of cleaning blocks are arranged. The cleaning blocks slide in the box body through a connecting rod, and the connecting rod and the box body are connected through a first spring.

4. The sealing device of the sandblasting angle adjustment mechanism according to claim 3, characterized in that: Under the action of the first spring, the cleaning block has a tendency to move toward one side of the rod body.

5. The sealing device of the sandblasting angle adjustment mechanism according to claim 4, characterized in that: A plurality of supporting members are arranged on the rod body and the boiler flue, and the supporting members are used to stabilize the rod body located in the sealing ring.

6. The sealing device of the sandblasting angle adjustment mechanism according to claim 5, characterized in that: The support member comprises a sliding sleeve and a support rod, wherein the support rod is slidably arranged in the sliding sleeve, the support rod is connected to the sliding sleeve via a second spring, and both ends of the support rod are rotatably connected to the outside of the boiler flue.

7. The sealing device of the sandblasting angle adjustment mechanism according to claim 6, characterized in that: The sliding sleeve is rotatably connected to the outside of the boiler flue, and the supporting rod is rotatably connected to the end of the rod body.

8. The sealing device of the sandblasting angle adjustment mechanism according to claim 1, characterized in that: The rod body is a hydraulic push rod or an electric push rod.

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