Sealing device, slide way and sintering machine

Abstract

The utility model discloses a sealing device, a slide way and a sintering machine, and relates to the technical field of sintering machines, the sealing device comprises a sealing shielding piece, the sealing shielding piece is used for being arranged on a sealing slide way, and the sealing slide way is arranged in a sealing groove in the bottom of a trolley. The sealing shielding piece can shield a gap between the outer side wall of the sealing sliding way and the inner side wall of the sealing groove. According to the sintering machine adopting the sealing device, the gap between the sealing groove and the sealing slide way is shielded through the sealing shielding piece, the amount of bulk materials entering the gap is reduced, material clamping is reduced through the gap, the flexible sealing plate cannot be abraded due to material clamping, the sealing effect is improved, and the service life of the flexible sealing plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering machines, in particular to a sealing device, a slideway and a sintering machine. Background Art

[0002] A sintering machine is one of the important equipment in the sintering production process. During its operation, it is necessary to seal between the bottom of the trolley of the sintering machine and the air box. A known sealing solution for the inventor is that sealing grooves extending along the length direction of the trolley are arranged on both sides of the bottom of the sintering trolley, and a sealing slideway is arranged in the sealing grooves. The air box is located below the trolley, and a flexible sealing plate is arranged at the position corresponding to the sealing slideway on the top of the air box. During operation, when the air box sucks air, under the action of negative pressure, the flexible sealing plate adheres to the bottom surface of the sealing slideway, forming a seal for the inner space at the contact position between the sealing slideway and the flexible sealing plate. However, there are gaps between the two sides of the sealing slideway and the inner side wall of the sealing groove. Materials are easily clamped at the gaps, and the granular clamped materials in the gaps are easily ground with the flexible sealing plate, thereby accelerating wear and reducing its service life. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a sealing device, a slideway and a sintering machine to solve the problems existing in the above-mentioned prior art and improve the service life of the flexible sealing plate.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] The utility model provides a sealing device, including a sealing shielding member, which is used to be arranged on the sealing slideway. The sealing slideway is arranged in the sealing groove at the bottom of the trolley, and the sealing shielding member can shield the gap between the outer side wall of the sealing slideway and the inner side wall of the sealing groove.

[0006] In an embodiment, the sealing shielding member is fixedly arranged at the side wall near the bottom of the sealing slideway, and the bottom of the sealing shielding member is flush with the bottom of the sealing slideway.

[0007] In an embodiment, the width of the sealing shielding member is greater than the width of the sealing groove.

[0008] In an embodiment, the sealing shielding member is fixedly arranged at the bottom of the sealing slideway, and the width of the sealing shielding member is greater than the width of the sealing groove. The sealing shielding member can contact with the flexible sealing plate installed on the air box to achieve sealing.

[0009] In an embodiment, the sealing shielding member includes a fixing part and an extending part. The fixing part is fixedly connected with the bottom of the sealing slideway, and the extending parts are fixedly arranged on both sides of the fixing part, and the extending parts are used to shield the gap between the outer side wall of the sealing slideway and the inner side wall of the sealing groove.

[0010] In one embodiment, the sealing and shielding member includes a sealing bottom plate disposed at the bottom of the sealing slideway. In addition to the strip plate structure, the sealing bottom plate can also adopt a plate-like structure with irregular side edges. For example, the side edges can be serrated, wavy and other structures. The sealing bottom plate can also adopt a strip-shaped block structure or a structure with a T-shaped, polygonal or elliptical cross-section.

[0011] The present utility model also provides a slideway disposed at the bottom of the sintering machine trolley, including a sealing slideway and the sealing device as described above.

[0012] In one embodiment, the sealing slideway and the sealing and shielding member are integrally formed. The slideway body and the sealing and shielding member can also be a split structure. When the slideway body and the sealing and shielding member are a split structure, fixing can be achieved by welding, riveting or other fixed connection methods.

[0013] In one embodiment, the sealing slideway includes a slideway body and a sealing block. The sealing block is disposed at at least one end of the slideway body. An adjusting gasket is disposed between the sealing block and the slideway body. The sealing and shielding member is fixedly disposed at the bottom of the slideway body. The cross-sectional structure of the sealing block is the same as that of the slideway body, and the cross-sectional structure of the adjusting gasket is also the same as that of the slideway body.

[0014] In one embodiment, the sealing slideway includes a U-shaped outer shell. A connecting portion is connected inside the U-shaped outer shell. The sealing and shielding member is fixedly disposed at the bottom of the U-shaped outer shell.

[0015] In one embodiment, a heat insulation layer is filled inside the U-shaped outer shell. The heat insulation layer is located between the connecting portion and the sealing and shielding member. A heat insulation layer is also filled in the cavity between the U-shaped outer shell and the connecting portion.

[0016] The present utility model provides a sintering machine, including an air box, a trolley located above the air box and the slideway as described above. A sealing groove is provided at the bottom of the trolley. A flexible sealing plate capable of being in contact and sealed with the slideway is provided at the top of the air box.

[0017] The present utility model has achieved the following technical effects compared with the prior art:

[0018] The utility model is provided with a sealing and shielding member at the bottom of the slideway, and is in contact and sealed with the flexible sealing plate through the sealing and shielding member, which increases the width of the contact surface between the slideway and the flexible sealing plate. The width of the sealing and shielding member is greater than the width of the sealing groove, so that both sides of the sealing and shielding member can block the gap between the sealing groove and the slideway. During operation, the entry of scattered materials into the gap can be reduced, the clamping of materials in the gap is reduced, the working environment of the flexible sealing plate is improved, the abrasion of the flexible sealing plate caused by the clamped materials is reduced, the service life of the flexible sealing plate is prolonged, and the sealing effect is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the partial structure of the sintering machine for Embodiment 3;

[0021] Figure 2 For Figure 1 an enlarged schematic view of part A;

[0022] Figure 3 It is a schematic diagram of the sealing device and the double-headed bolt structure for Embodiment 1 of the present utility model;

[0023] Figure 4 For Figure 3 the top view;

[0024] Figure 5 It is a schematic diagram of the sealing slideway structure for Embodiment 1;

[0025] Figure 6 It is a top view schematic diagram of the sealing device structure for Embodiment 2;

[0026] Figure 7 For Figure 6 the sectional view;

[0027] Figure 8 It is a top view schematic diagram of another structure of the sealing device for Embodiment 2;

[0028] Figure 9 It is a schematic diagram of the sealing bottom plate structure;

[0029] Figure 10 It is a schematic diagram of another structure of the sealing bottom plate.

[0030] In the figure: 1 - trolley, 101 - sealing groove, 2 - slideway, 201 - sealing slideway, 202 - sealing bottom plate, 2021 - fixing part, 2022 - extending part, 203 - sealing block, 204 - adjusting gasket, 205 - U-shaped housing, 206 - heat insulation layer, 207 - connecting part, 3 - double-headed bolt, 4 - flat washer, 5 - spring washer, 6 - nut. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] The purpose of the present invention is to provide a sealing device, a slideway and a sintering machine to solve the problems existing in the above-mentioned prior art and improve the service life of the flexible sealing plate.

[0033] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0034] A sealing groove extending along the length direction of the trolley is arranged at the bottom of the trolley of the sintering machine. A sealing slideway is fixedly arranged in the sealing groove. A flexible sealing plate is arranged on the top of the air box. Under the action of the negative pressure inside the air box, the flexible sealing plate and the bottom surface of the sealing slideway are closely attached to form a seal. The inventor of the present invention found that during the installation of the sealing slideway, it is easy for materials to be clamped in the gap between the sealing groove and the sealing slideway. When the trolley passes through the flexible sealing plate, the unevenly clamped materials cause abrasion to the flexible sealing plate, resulting in its premature damage; in addition, the trolley needs to be flipped for discharging. After the trolley discharges and when it is not loaded with sintered materials, the bottom of the trolley faces upwards due to flipping, and it is easy for sundries to fall into the gap between the sealing groove and the sealing slideway. When the trolley is loaded with sintered materials and moves during sintering, the flexible sealing plate and the sealing slideway are in contact, and the sundries in the gap fall out of the gap, causing abrasion to the flexible sealing plate; when the trolley discharges at the tail of the machine, the small granular materials after the trolley is tilted can enter the gaps on both sides of the sealing slideway with the flipping of the trolley, and after entering the heavy lane, the clamped materials will cause abrasion to the flexible sealing plate, resulting in the premature damage of the flexible sealing plate.

[0035] Embodiment 1

[0036] In order to improve the service life of the flexible sealing plate, it is necessary to reduce the abrasion of the flexible sealing plate caused by the clamped materials at the gap during use. To solve this problem, it is necessary to avoid the generation of clamped materials at the gap of the sealing groove. Based on this, this embodiment provides a sealing device, refer to Figures 1 to 10As shown in the figure, a sealing slideway 201 is provided in the sealing groove 101 at the bottom of the trolley 1 of the sintering machine. The sealing device is fixed on the sealing slideway 201 and can contact with the flexible sealing plate installed on the air box to achieve sealing. The sealing device includes a sealing shielding member. The sealing shielding member is located below the sealing groove 101. The width of the sealing shielding member is greater than the width of the sealing groove 101. There is a gap or no gap between the upper surface of the sealing shielding member and the outer bottom of the sealing groove 101, covering the gap between the outer side wall of the sealing slideway 201 and the inner side wall of the sealing groove 101, so that when working, the entry of materials into the gap between the sealing slideway 201 and the sealing groove 101 is reduced, and further the wear of the flexible sealing plate caused by pinched materials is avoided.

[0037] In a specific embodiment, the sealing shielding member is fixedly arranged at the side wall near the bottom of the sealing slideway 201, and the bottom of the sealing shielding member is flush with the bottom of the sealing slideway 201, so that the sealing shielding member does not interfere with the fitting and sealing between the bottom of the sealing slideway 201 and the flexible sealing plate. At the same time, the sealing shielding member forms an extension structure similar to a flange. The extension structure is located below the sealing groove 101 and can completely cover the bottom opening of the sealing groove 101, so that no materials can enter the gap between the sealing slideway 201 and the sealing groove 101 through the bottom opening of the sealing groove 101, and further no pinched materials will wear the flexible sealing plate, improving the service life of the flexible sealing plate.

[0038] In the above embodiment, the contact surface between the sealing slideway 201 and the flexible sealing plate remains unchanged, only a sealing shielding member for covering the gap is added. When the trolley 1 runs off track, the sealing slideway 201 is displaced relative to the flexible sealing plate, resulting in misalignment between the two, so that the materials at the gap between the sealing groove 101 and the sealing slideway 201 can contact with the flexible sealing plate and wear the flexible sealing plate. In order to further reduce its wear on the flexible sealing plate and at the same time increase the contact surface between the sealing slideway 201 and the flexible sealing plate and reduce the problem of misalignment due to the trolley 1 running off track, the sealing shielding member in this embodiment adopts a sealing bottom plate 202. The sealing bottom plate 202 is fixedly arranged at the bottom of the sealing slideway 201, and the width of the sealing bottom plate 202 is greater than the width of the sealing slideway 201. Sealing is achieved by the contact between the bottom of the sealing bottom plate 202 and the flexible sealing plate installed on the air box. Due to the addition of the sealing bottom plate 202 structure, the distance between the sealing slideway 201 and the flexible sealing plate is reduced, so that only a very small air box negative pressure is required to achieve the fitting and sealing between the flexible sealing plate and the sealing bottom plate 202, further improving the sealing effect. And the relatively large width of the sealing bottom plate 202 completely covers the gap between the sealing slideway 201 and the sealing groove 101, and no materials will enter the gap, so that the flexible sealing plate will not be worn.

[0039] In a specific embodiment, the sealing slideway 201 and the sealing bottom plate 202 are fixedly connected or integrally formed. The overall structure formed by the two is in an inverted T shape. The sealing slideway 201 is located in the sealing groove 101, the sealing bottom plate 202 is located at the bottom of the sealing slideway 201, and the width of the sealing bottom plate 202 is greater than the width of the sealing slideway 201. In addition to this structure, the structure of the sealing bottom plate 202 can also be set as an inverted T shape, such as Figure 10 shown, including a fixing part 2021 and an extending part 2022. The fixing part 2021 is fixedly connected to the bottom of the sealing slideway 201, and the extending parts 2022 are fixedly arranged on both sides of the fixing part 2021, and the extending parts 2022 block the gap between the outer side wall of the sealing slideway 201 and the inner side wall of the sealing groove 101, and the effect of blocking the gap can also be achieved.

[0040] Embodiment 2

[0041] Reference Figure 3 、 Figure 4 and Figure 5 shown, this embodiment provides a slideway 2, including a sealing slideway 201 and a sealing device. The sealing device in this embodiment is a sealing bottom plate 202. The sealing slideway 201 in this embodiment includes a slideway body and a sealing block 203 arranged at at least one end of the slideway body. The bottom of the slideway body is fixedly connected to the sealing bottom plate 202. The slideway body is fixed in the sealing groove 101 of the trolley 1 through a double-headed bolt 3. A nut 6 is connected after the top of the double-headed bolt 3 passes through the bottom plate of the trolley 1. By arranging a spring washer 5 and a flat washer 4 between the nut 6 and the bottom plate, the fixing and pressing of the nut 6 are realized, and then the slideway body is fixed through the double-headed bolt 3. The sealing block 203 is connected to the slideway body by bolts or screws, and the two can also be connected by a clamping or riveting method, so that the length of the sealing slideway 201 can be adjusted. By replacing the sealing blocks 203 of different sizes, the length of the sealing slideway 201 can be changed. An adjusting gasket 204 is arranged between the sealing block 203 and the sealing slideway 201. By combining the adjusting gasket 204 and the sealing block 203, the length of the sealing slideway 201 can be changed, so that the length of the sealing slideway 201 can always be kept consistent. Even if the side of the trolley 1 is worn due to long-term use and its length direction changes, the length of the sealing slideway 201 can be adjusted by replacing the adjusting gaskets 204 of different thicknesses, or only replacing the sealing block 203 is enough, without replacing the whole sealing slideway 201, which greatly reduces the later maintenance cost.

[0042] In a preferred solution, reference Figure 6 、 Figure 7 and Figure 8As shown, the structure of the sealing slideway 201 is changed. The sealing slideway 201 includes a U-shaped outer shell 205. A connecting part 207 is welded inside the U-shaped outer shell 205. A sealing bottom plate 202 is fixedly arranged at the bottom of the U-shaped outer shell 205. At least one end of the U-shaped outer shell 205 is fixedly connected with a sealing block 203 by bolts, and adjusting gaskets 204 with different thicknesses are arranged between the sealing block 203 and the end of the U-shaped outer shell 205. In this embodiment, the U-shaped outer shell 205 is filled with a heat insulation layer 206, and the heat insulation layer 206 uses ceramic fiber blanket, which is located between the connecting part 207 and the sealing shielding part.

[0043] Embodiment 3

[0044] On the basis of the above solution, the present utility model further provides a sintering machine. Referring to Figure 1 、 Figure 2 、 Figure 3 As shown, it includes an air box, a trolley 1 located above the air box, and the slideway described above. The slideway includes a sealing slideway 201 and a sealing device. The sealing slideway 201 is arranged in a sealing groove 101 at the bottom of the trolley 1, and a flexible sealing plate is arranged at the top of the air box. During the sintering process of the sintering machine, the fan sucks air out of the air box through the air duct, so that a negative pressure is formed in the air box. After the sintering material on the trolley 1 is ignited, it is sintered from top to bottom under the action of the negative pressure air. Since the air box is under negative pressure, the flexible sealing plate at the top of the air box contacts the bottom surface of the sealing slideway 201 at the bottom of the trolley 1 under the action of the negative pressure to form a seal. The flexible seal can be automatically compensated, which not only improves the sealing effect, but also prevents air leakage between the bottom of the trolley 1 and the top of the air box. The design of the sealing shielding part is beneficial to extending the service life of the flexible sealing plate.

[0045] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A sealing device, characterized in that: It includes a sealing and shielding member which is used to be arranged on a sealing slideway. The sealing slideway is arranged in a sealing groove at the bottom of a trolley, and the sealing and shielding member can shield the gap between the outer sidewall of the sealing slideway and the inner sidewall of the sealing groove.

2. The sealing device according to claim 1, wherein: The sealing and shielding member is fixedly arranged at the sidewall of the sealing slideway close to the bottom, and the bottom of the sealing and shielding member is flush with the bottom of the sealing slideway.

3. The sealing device according to claim 1, wherein: The width of the sealing and shielding member is greater than the width of the sealing groove.

4. The sealing device according to claim 1, characterized in that: The sealing and shielding member is fixedly arranged at the bottom of the sealing slideway, and the width of the sealing and shielding member is greater than the width of the sealing groove. The sealing and shielding member can contact with a flexible sealing plate installed on an air box to achieve sealing.

5. The sealing device according to claim 1, wherein: The sealing and shielding member includes a fixed part and an extended part. The fixed part is fixedly connected to the bottom of the sealing slideway, and the extended parts are fixedly arranged on both sides of the fixed part, and the extended parts are used to shield the gap between the outer sidewall of the sealing slideway and the inner sidewall of the sealing groove.

6. The sealing device according to claim 1, wherein: The sealing and shielding member includes a sealing bottom plate arranged at the bottom of the sealing slideway.

7. A slideway is provided at the bottom of the sintering machine trolley, characterized in that: It includes a sealing slideway and the sealing device according to any one of claims 1-6.

8. The slideway according to claim 7, wherein: The sealing slideway and the sealing and shielding member are integrally formed.

9. The slideway according to claim 7, characterized in that: The sealing slideway includes a slideway body and a sealing block. The sealing block is arranged at at least one end of the slideway body, and an adjusting gasket is arranged between the sealing block and the slideway body; the sealing and shielding member is fixedly arranged at the bottom of the slideway body.

10. The slideway according to claim 7, characterized in that: The sealing slideway includes a U-shaped outer shell, a connecting part is connected inside the U-shaped outer shell, and the sealing and shielding member is fixedly arranged at the bottom of the U-shaped outer shell.

11. The slideway according to claim 10, characterized in that: The U-shaped outer shell is filled with a heat insulation layer, and the heat insulation layer is located between the connecting part and the sealing and shielding member.

12. A sintering machine includes an air box, a trolley located above the air box, and the slideway according to any one of claims 7 to 11. The bottom of the trolley has a sealing groove, the slideway is arranged in the sealing groove, and a flexible sealing plate capable of contacting and sealing with the slideway is arranged at the top of the air box.

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