A protective device for reducing wear of raw coal bunker dredge

Abstract

This utility model discloses a protective device for reducing wear on a coal silo cleaner, comprising a raw material silo and a cleaner installed inside the raw material silo. A through-slot is formed above the cleaner in the raw material silo. A buffer is fixed to the inner wall of the raw material silo below the through-slot. Two supports are symmetrically fixed to the outer walls of the raw material silo on both sides of the through-slot. A limiting rod is fixed to each support. A protective plate is movably inserted through the through-slot, and the lower surface of the protective plate inside the raw material silo overlaps the buffer. The two limiting rods are slidably hinged to the two ends of the protective plate. Bolts are inserted into the supports and the limiting rods, and one end of the bolts is threadedly connected to the threaded holes on both sides of the protective plate. The advantages of this utility model are: the protective plate can be continuously extended into the raw material silo according to the degree of wear, facilitating the replacement of the protective plate; the protective plate effectively protects the cleaner, preventing wear and tear and coal dust leakage.

Description

Technical field:

[0001] The utility model relates to the technical field of raw coal bunkers, in particular to a protective device for reducing wear of a raw coal bunker dredge. Background technology:

[0002] For power plants, the coal feeding system often has coal blockage in the raw coal bunker. Therefore, it is necessary to install a dredge inside the raw coal bunker to dredge the coal powder in the raw coal bunker, so as to avoid blockage in the raw coal bunker unloading process.

[0003] The current technical defect is that since the dredge is placed inside the raw material bin and operates periodically for a long time, the coal powder continuously flushes the surface of the dredge, causing the dredge to wear out and leak coal powder, so a new technical solution is needed. Utility model content:

[0004] The purpose of the utility model is to provide a protective device for reducing wear of a raw coal bunker dredge, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is implemented by the following technical solutions:

[0006] A protective device for reducing wear of a raw coal bunker dredge, comprising a raw material bunker and a dredge installed inside the raw material bunker; through grooves are respectively opened in the raw material bunker above the dredge, a buffer is fixed on the inner wall of the raw material bunker below the through groove, two supports are symmetrically fixed on the outer wall of the raw material bunker on both sides of the through groove, a limiting round rod is fixed on each of the supports, a protective plate is movably inserted in the through groove, the lower surface of the protective plate placed in the raw material bunker overlaps the buffer, the two limiting round rods are slidably hinged to the two side ends of the protective plate, a plurality of threaded holes are symmetrically opened on the two side ends of the protective plate, bolts are inserted in the supports and the limiting round rods, one end of the bolts is threadedly connected to the threaded holes on both sides of the protective plate.

[0007] Preferably, the buffer is a spring steel sheet, and its structure is in a "∠" shape.

[0008] Preferably, through holes for passing bolts are provided in the support and the limiting round rod.

[0009] Preferably, sliding grooves for limiting the sliding of the round rod are symmetrically provided at both side ends of the protective plate, a plurality of threaded holes are evenly provided on the sliding grooves, and a plurality of slots are evenly provided on the lower surface of the middle portion of the protective plate.

[0010] The utility model has the advantages that the protective plate can be continuously extended into the raw material bin according to the degree of wear, which is convenient for replacing the protective plate. The protective plate can be used to protect the dredge, thus avoiding wear of the dredge and leakage of coal powder. Description of the drawings:

[0011] Figure 1 It is a structural schematic diagram of the prior art;

[0012] Figure 2 It is a structural schematic diagram of the utility model;

[0013] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0014] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0015] Figure 5 Schematic diagram of the protective plate structure Figure 1 ;

[0016] Figure 6 Schematic diagram of the protective plate structure Figure 2 ;

[0017] Figure 7 This is a schematic diagram of the connection of the protective plate.

[0018] In the figure: 1. Raw material bin, 1.1. Through groove, 2. Clearer, 3. Buffer, 4. Support, 5. Limiting round rod, 6. Protective plate, 6.1. Slide groove, 6.2. Threaded hole, 6.3. Slot, 7. Bolt, 8. Through hole. Specific implementation method:

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-7 The utility model provides a technical solution for a protective device for reducing wear of a raw coal bunker dredge:

[0021] A protective device for reducing wear of a raw coal bunker dredge comprises a raw material bunker 1 and a dredge 2 installed inside the raw material bunker 1; through grooves 1.1 are respectively opened in the raw material bunker 1 above the dredge 2, a buffer 3 is fixed on the inner wall of the raw material bunker 1 below the through groove 1.1, two supports 4 are symmetrically fixed on the outer wall of the raw material bunker 1 on both sides of the through groove 1.1, a limiting round rod 5 is fixed on each support 4, a protective plate 6 is movably penetrated in the through groove 1.1, and the protective plate 6 is easy to replace, and the lower surface of the protective plate 6 placed in the raw material bunker 1 overlaps the buffer 3, two limiting round rods 5 are slidably hinged to the two side ends of the protective plate 6, and a plurality of threaded holes 6.2 are symmetrically opened on the two side ends of the protective plate 6, bolts 7 are penetrated in the supports 4 and the limiting round rods 5, and one end of the bolt 7 is threadedly connected to the threaded holes 6.2 on both sides of the protective plate 6.

[0022] The buffer member 3 is a spring steel sheet, and its structure is in a "∠" shape.

[0023] The support 4 and the limiting round rod 5 are provided with through holes 8 for passing the bolts 7 .

[0024] The two side ends of the protection plate 6 are symmetrically provided with sliding grooves 6.1 for limiting the sliding of the round rod 5, and a plurality of threaded holes 6.2 are evenly provided on the sliding grooves 6.1. The middle lower surface of the protection plate 6 is evenly provided with a plurality of card slots 6.3.

[0025] The working principle is as follows: insert the protective plate 6 into the through groove 1.1 of the raw material bin 1, and hold the groove 6.3 on the lower surface of the protective plate 6 with your fingers, and slowly send the protective plate 6 into the raw material bin until it covers the dredge 2. According to the degree of wear, the protective plate can be continuously extended into the raw material bin to prevent the coal powder from directly hitting the dredge 2 and generating friction. After covering, insert the two bolts 7 into the support 4 and the limiting round rod 5 and threadedly connect them with the threaded holes 6.2 on the protective plate 6, thereby fixing the protective plate 6 to prevent the protective plate from falling into the raw material bin 1. Since the limiting round rod 5 and the protective plate 6 are in a sliding hinge relationship, when the protective plate 6 is fixed by the two bolts 7, the protective plate 6 can only rotate and overlap on the spring steel sheet. When the coal powder falls, it will first fall on the upper surface of the protective plate 6 and exert a downward pressure on the protective plate 6. The protective plate 6 can be buffered by the spring steel sheet to avoid the problem of fracture at the connection of the protective plate 6, and at the same time slow down the speed of the coal powder falling.

[0026] On the whole, the protective plate 6 can be used to protect the dredge 2, thereby preventing the dredge 2 from being worn and the coal powder from leaking.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective device for reducing wear of a raw coal bunker dredge, comprising a raw material bunker (1) and a dredge (2) installed inside the raw material bunker (1); characterized in that: The raw material bin (1) is provided with through grooves (1.1) above the dredge (2), and a buffer (3) is fixed on the inner wall of the raw material bin (1) below the through groove (1.1). Two supports (4) are symmetrically fixed on the outer walls of the raw material bin (1) on both sides of the through groove (1.1), and a limiting round rod (5) is fixed on each of the supports (4). A protective plate (6) is movably inserted in the through groove (1.1), and the lower surface of the protective plate (6) placed in the raw material bin (1) overlaps the buffer (3). The two limiting round rods (5) are slidably hinged to the two side ends of the protective plate (6), and a plurality of threaded holes (6.2) are symmetrically opened on the two side ends of the protective plate (6). Bolts (7) are inserted in the supports (4) and the limiting round rods (5), and one end of the bolt (7) is threadedly connected to the threaded holes (6.2) on both sides of the protective plate (6).

2. A protective device for reducing wear of a raw coal bunker dredge according to claim 1, characterized in that: The buffer (3) is a spring steel sheet, and its structure is in a "∠" shape.

3. A protective device for reducing wear of a raw coal bunker dredge according to claim 1, characterized in that: The support (4) and the limiting round rod (5) are provided with through holes (8) for passing bolts (7).

4. A protective device for reducing wear of a raw coal bunker dredge according to claim 1, characterized in that: The two end portions of the protective plate (6) are symmetrically provided with sliding grooves (6.1) for limiting the sliding of the round rod (5), the sliding grooves (6.1) are evenly provided with a plurality of threaded holes (6.2), and the middle lower surface of the protective plate (6) is evenly provided with a plurality of clamping grooves (6.3).

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