Shaft kiln material blocking grid structure capable of prolonging service life

Abstract

The utility model relates to a material blocking grid structure capable of prolonging the service life for a shaft kiln, which belongs to the technical field of shaft kilns and comprises an arc-shaped arched plate matched with a discharge door of the shaft kiln, a plurality of material blocking pipes are fixed on the inner side of the arched plate along the vertical direction, and a gap is reserved between every two adjacent material blocking pipes. A material blocking sector plate is fixed between the top of the uppermost material blocking pipe and the inner wall of the top of the arched plate, a plurality of vertical reinforcing plates are arranged on the front sides of the material blocking pipes, a plurality of semicircular clamping grooves matched with the material blocking pipes are formed in the rear sides of the reinforcing plates, and the reinforcing plates fixedly weld the material blocking pipes into a whole. The overall strength of the material blocking grid is improved, the service life is prolonged, deformation is better prevented, and kiln slipping is prevented; the kiln operation time can be prolonged, the yield is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a material retaining grid structure for a vertical kiln capable of prolonging the service life, and belongs to the technical field of vertical kilns. Background Art

[0002] Vertical kilns are common sintering equipment. An arched discharge door is set at the discharge channel of the vertical kiln, and then a retaining grid is set at the discharge door to prevent the high-temperature hard clay clinker from being squeezed out without discharging, causing the kiln to slip. The current retaining grid includes an arc plate that cooperates with the discharge door. A plurality of support beams are fixed on the inner side of the arc plate in the vertical direction. There is a spacing between the support beams. During the use of the vertical kiln retaining grid, the bottom support beam will be deformed and bulge outward due to the influence of high-temperature hard clay clinker, causing the kiln to slip, greatly reducing the service life of the retaining grid. Utility Model Content

[0003] The utility model provides a pelletizing chute structure to solve the problems in the above-mentioned background technology.

[0004] The utility model relates to a material blocking grid structure for a vertical kiln capable of improving service life, comprising an arc-shaped arched plate matched with a material discharge door of the vertical kiln, a plurality of material blocking tubes are fixed on the inner side of the arched plate in a vertical direction, a spacing is provided between adjacent material blocking tubes, a material blocking fan-shaped plate is fixed between the top of the uppermost material blocking tube and the top inner wall of the arched plate, a plurality of vertical reinforcing plates are provided on the front side of the material blocking tube, a plurality of semicircular slots matched with the material blocking tube are provided on the rear side of the reinforcing plate, and the plurality of material blocking tubes are welded and fixed into a whole by the reinforcing plates.

[0005] As a preferred embodiment, the top of the reinforcing plate is welded and fixed to the arch plate, and the upper end of the reinforcing plate is provided with a fixed recessed platform in contact with the front side wall of the material-blocking fan-shaped plate. The fixed recessed platform is welded and fixed to the material-blocking fan-shaped plate, so that the reinforcing plate and the material-blocking fan-shaped plate can be welded and fixed together, and the overall strength is higher.

[0006] As a preferred embodiment, a fixed rib plate 1 is welded and fixed on both sides of each semicircular slot, and the inner side of the fixed rib plate 1 is welded and fixed to the material blocking tube to increase the fixing strength of the reinforcing plate and the material blocking tube.

[0007] As a preferred embodiment, the material blocking fan-shaped plate is provided with material through holes to facilitate material heat dissipation and discharge.

[0008] As a preferred embodiment, two fixing ribs are welded and fixed to the front sides of both ends of each material blocking tube, and the outer sides of the two fixing ribs are welded and fixed to the arch plate to increase the welding strength between the material blocking tube and the arch plate.

[0009] As a preferred embodiment, reinforcing support plates are welded and fixed between adjacent material blocking tubes to increase the stability between the material blocking tubes.

[0010] As a preferred embodiment, supporting flanges are provided at the bottom of both ends of the arched plate, and positioning bosses are provided at the bottom of the supporting flanges to facilitate the installation and fixation of the arched plate.

[0011] As a preferred embodiment, the two ends of the front sides of adjacent material blocking tubes are fixedly connected with water pipes, one end of the lowest material blocking tube passes through the arch plate and is fixedly connected with a cooling water inlet pipe, and one end of the highest material blocking tube passes through the arch plate and is fixedly connected with a cooling water outlet pipe. The material blocking tube can be cooled to prevent the material blocking tube from being deformed due to heat, and the material can be cooled.

[0012] The utility model has the following beneficial effects:

[0013] The overall strength of the material retaining grid is increased, the service life is prolonged, and deformation is better prevented, which prevents the kiln from slipping; it can increase the kiln operation time, increase production, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the side structure of the reinforcement plate;

[0016] In the figure: 1. material-blocking fan-shaped plate; 2. material-blocking pipe; 3. arched plate; 4. cooling water inlet pipe; 5. supporting flange; 6. reinforcing plate; 7. fixing rib plate 1; 8. reinforcing support plate; 9. water pipe; 10. fixing rib plate 2; 11. positioning boss; 12. cooling water outlet pipe; 13. material-passing hole; 14. fixing concave platform; 15. semicircular slot. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with embodiments.

[0018] Embodiment 1, as Figure 1 to Figure 2 As shown, the utility model is a material retaining grid structure for a vertical kiln which can improve the service life, including an arc-shaped arch plate 3 which cooperates with the discharge door of the vertical kiln, a plurality of material retaining tubes 2 are fixed to the inner side of the arch plate 3 in the vertical direction, and a spacing is provided between adjacent material retaining tubes 2, a material retaining fan-shaped plate 1 is fixed between the top of the uppermost material retaining tube 2 and the top inner wall of the arch plate 3, a plurality of vertical reinforcing plates 6 are provided on the front side of the material retaining tube 2, a plurality of semicircular grooves 15 which cooperate with the material retaining tube 2 are provided on the rear side of the reinforcing plate 6, and the reinforcing plate 6 welds and fixes the plurality of material retaining tubes 2 into a whole.

[0019] When working, the material blocking fence is installed at the arched material discharging door of the material discharging channel, which can block the clinker at the rear side of the upper part of the material discharging channel. On the outside of the material blocking fence, in the vertical direction, all the material blocking pipes 2 of the material blocking fence are connected together by thick reinforcing plates 6 to form an integral body; when the bottom material blocking pipe 2 is deformed by heat, under the action of the reinforcing plates 6, the deformation force will be decomposed by the reinforcing plates 6 to the upper material blocking pipe 2, reducing the force on the bottom material blocking pipe 2, delaying deformation, and extending the service life of the material blocking fence.

[0020] Embodiment 2, on the basis of embodiment 1, the top of the reinforcing plate 6 is welded and fixed to the arch plate 3, and the upper end of the reinforcing plate 6 is provided with a fixed concave platform 14 in contact with the front side wall of the material blocking sector plate 1, and the fixed concave platform 14 is welded and fixed to the material blocking sector plate 1. When the reinforcing plate 6 is welded and fixed, after the semicircular groove 15 of the reinforcing plate 6 is inserted into the corresponding material blocking tube 2, the fixed concave platform 14 will be attached to the front side wall of the material blocking sector plate 1, and then the fixed concave platform 14 is welded and fixed on both sides.

[0021] A fixed rib plate 7 is welded and fixed on both sides of each semicircular slot 15 , and the inner side of the fixed rib plate 7 is welded and fixed to the material blocking tube 2 .

[0022] A material passage hole 13 is provided on the material blocking sector plate 1 .

[0023] The front sides of both ends of each material blocking tube 2 are welded and fixed with a fixing rib plate 2 10 , and the outer sides of the fixing rib plate 2 10 are welded and fixed to the arch plate 3 .

[0024] A reinforcing support plate 8 is welded and fixed between adjacent material blocking tubes 2 .

[0025] Support flanges 5 are provided at the bottom of both ends of the arch plate 3 , and positioning bosses 11 are provided at the bottom of the support flanges 5 .

[0026] Both ends of the front sides of the adjacent blocking pipes 2 are fixedly connected with water pipes 9, one end of the lowest blocking pipe 2 passes through the arch plate 3 and is fixedly connected with a cooling water inlet pipe 4, and one end of the highest blocking pipe 2 passes through the arch plate 3 and is fixedly connected with a cooling water outlet pipe 12. When the blocking grid is blocking the material, cooling water is introduced into the cooling water inlet pipe 4, and the cooling water enters the lower blocking pipe 2 from the cooling water inlet pipe 4, and then gradually flows upward through the water pipe 9, and then flows into the cooling water outlet pipe 12 from the highest water pipe 9 and is discharged, so as to cool the blocking pipe 2, better prevent the blocking pipe 2 from deformation, and cool the clinker.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0028] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A material retaining grid structure for a shaft kiln capable of increasing service life, comprising an arc-shaped arch plate (3) cooperating with a discharge door of the shaft kiln, characterized in that: A plurality of material blocking tubes (2) are fixed on the inner side of the arch plate (3) in the vertical direction, and a spacing is provided between adjacent material blocking tubes (2). A material blocking fan-shaped plate (1) is fixed between the top of the uppermost material blocking tube (2) and the inner wall of the top of the arch plate (3). A plurality of vertical reinforcing plates (6) are provided on the front side of the material blocking tube (2), and a plurality of semicircular grooves (15) cooperating with the material blocking tube (2) are provided on the rear side of the reinforcing plate (6). The reinforcing plate (6) welds and fixes the plurality of material blocking tubes (2) into a whole.

2. A material retaining grid structure for a vertical kiln capable of increasing service life according to claim 1, characterized in that: The top of the reinforcing plate (6) is welded and fixed to the arch plate (3), and the upper end of the reinforcing plate (6) is provided with a fixed concave platform (14) in contact with the front side wall of the material blocking sector plate (1), and the fixed concave platform (14) is welded and fixed to the material blocking sector plate (1).

3. The material retaining grid structure for a shaft kiln capable of increasing service life according to claim 1, characterized in that: A fixed rib plate 1 (7) is welded and fixed to the left and right sides of each semicircular slot (15), and the inner side of the fixed rib plate 1 (7) is welded and fixed to the material blocking tube (2).

4. The material retaining grid structure for a vertical kiln capable of increasing service life according to claim 1, characterized in that: The material blocking sector plate (1) is provided with a material passing hole (13).

5. A material retaining grid structure for a vertical kiln capable of increasing service life according to claim 4, characterized in that: A second fixing rib plate (10) is welded and fixed to the front sides of both ends of each material blocking tube (2), and the outer side of the second fixing rib plate (10) is welded and fixed to the arch plate (3).

6. The material retaining grid structure for a vertical kiln capable of increasing service life according to claim 1, characterized in that: A reinforcing support plate (8) is welded and fixed between adjacent material blocking tubes (2).

7. The material retaining grid structure for a shaft kiln capable of increasing service life according to claim 1, characterized in that: Support flanges (5) are provided at the bottoms of both ends of the arched plate (3), and positioning bosses (11) are provided at the bottoms of the support flanges (5).

8. The material retaining grid structure for a shaft kiln capable of increasing service life according to claim 1, characterized in that: Both ends of the front sides of adjacent material blocking pipes (2) are fixedly connected to water pipes (9), one end of the lowest material blocking pipe (2) passes through the arch plate (3) and is fixedly connected to a cooling water inlet pipe (4), and one end of the highest material blocking pipe (2) passes through the arch plate (3) and is fixedly connected to a cooling water outlet pipe (12).

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