Lower breast board device of sintering machine trolley

Abstract

The utility model relates to a sintering machine trolley lower breast board device which comprises lower breast boards, the lower breast boards are fixedly arranged on the two sides of a sintering machine trolley, the lower breast boards are provided with grate bar plug pin holes and threaded holes, the grate bar plug pin holes are conical holes, grate bar plug pins matched with the conical holes are inserted into the conical holes, and threaded holes are formed in the threaded holes. The grid section bolt comprises an inserting part and a locking part, a conical surface is arranged on the surface of the inserting part, a locking fixing hole is formed in the locking part, a first bolt sequentially penetrates through the threaded hole and the locking fixing hole and then is connected with a locking nut, and fixing of the grid section bolt and the lower breast board is achieved. According to the utility model, the original straight hole type is changed into the conical hole, and meanwhile, the contact surface of the grate bar bolt matched with the conical hole is changed into the conical surface, so that the sealing effect is improved after the installation, and the air leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering equipment, in particular to a lower guardrail device of a sintering machine trolley. Background Art

[0002] In sintering production, reducing the air leakage of the sintering system is the main measure to improve the quality, increase production and reduce consumption of sintering production. The air leakage of the sintering machine trolley body is one of the main factors of air leakage in the sintering system. At present, the air leakage of the grate bar pin hole of the lower fence of the sintering machine trolley and the air leakage of the side of the fence are the two main factors causing the air leakage of the sintering machine trolley. At present, the grate bar pin hole of the lower fence of the trolley is a straight hole. After the pin is inserted, the seal is not tight, resulting in air leakage at the pin position. At the same time, the lower fence has been running for a long time, and the fence is worn, resulting in loose sealing on both sides. During the operation of the trolley, the side air leakage is large, which directly affects the sealing effect during the operation of the sintering machine. The air leakage rate of the sintering machine increases, resulting in a decrease in the quality of sintered minerals and an increase in energy consumption indicators. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a sintering machine trolley lower guardrail device, which improves the grate bar pin holes of the sintering machine trolley, changes the original straight holes into conical holes, and at the same time, changes the contact surface of the grate bar pin matching therewith into a conical surface, so that the sealing effect is improved after installation and air leakage is reduced.

[0004] In order to solve the above technical problems, the utility model provides a lower guardrail device for a sintering machine trolley, characterized in that: the lower guardrail is fixedly arranged on both sides of the sintering machine trolley, the lower guardrail is provided with a grate bar pin hole and a threaded hole, the grate bar pin hole is a conical hole, a matching grate bar pin is inserted into the conical hole, the grate bar pin includes an inserting portion and a locking portion, the surface of the inserting portion is provided with a conical surface, the locking portion is provided with a locking fixing hole, the first bolt passes through the threaded hole and the locking fixing hole in sequence and is connected with a locking nut to realize the fixation of the grate bar pin and the lower guardrail.

[0005] In one embodiment of the utility model, a sealing liner is provided on the side wall of the lower railing, a plurality of fixing holes are provided on the sealing liner, and the sealing liner is connected to the lower railing by a second bolt. In one embodiment of the utility model, a first longitudinal reinforcing rib, a second longitudinal reinforcing rib, a third longitudinal reinforcing rib, a transverse reinforcing rib and an oblique reinforcing rib are provided on the lower railing, the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are arranged at intervals, the third longitudinal reinforcing rib coincides with the longitudinal center axis of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib respectively; the oblique reinforcing rib is arranged between the transverse reinforcing rib and the second longitudinal reinforcing rib and between the transverse reinforcing rib and the third longitudinal reinforcing rib.

[0006] In one embodiment of the present invention, the width of the first longitudinal reinforcing rib is greater than the width of the second longitudinal reinforcing rib, and the width of the second longitudinal reinforcing rib is the same as the width of the third longitudinal reinforcing rib.

[0007] In one embodiment of the present invention, the grate bar pin hole is arranged on the first longitudinal reinforcing rib.

[0008] In one embodiment of the utility model, a high temperature resistant asbestos pad is provided between the locking portion of the grate bar latch and the first longitudinal reinforcing rib.

[0009] In an embodiment of the present invention, a first sealing gasket is provided between the locking nut and the locking portion.

[0010] In one embodiment of the present invention, the first sealing gasket includes an asbestos gasket and a metal flat gasket.

[0011] In one embodiment of the present invention, a second sealing gasket is provided between the first bolt and the inner wall of the lower railing.

[0012] In one embodiment of the present invention, the second sealing gasket includes a metal flat gasket and a metal spring gasket.

[0013] The above technical solution of the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a sintering machine trolley lower guard plate device, which improves the grate bar pin hole of the sintering machine trolley lower guard plate, changes the original straight hole to a tapered hole, and makes the grate bar pin contact surface matched with it the same tapered surface. After installation, the sealing effect is improved and the air leakage is reduced; and sealing lining plates are provided on both sides of the lower guard plate, and the sealing lining plates on both sides are detachable. When the lower guard plate is worn out during use, the sealing lining plates on both sides can be replaced in time to maintain the sealing effect on both sides of the sintering machine trolley guard plate and reduce air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0016] Figure 1 It is a structural schematic diagram of the lower railing device of the sintering machine trolley in the preferred embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A partial structural schematic diagram of the lower guardrail and grate bar pin holes of the lower guardrail device of the sintering machine trolley shown in FIG.

[0018] Figure 3 yes Figure 1 The structural schematic diagram of the sealing liner of the lower guardrail device of the sintering machine trolley shown in FIG.

[0019] Figure 4 yes Figure 1 A schematic diagram showing the relationship between the first bolt, the locking nut, the grate bar latch and the first longitudinal reinforcing rib of the lower guardrail device of the sintering machine trolley shown;

[0020] Figure 5 yes Figure 1 A schematic structural diagram of a grate bar latch of a lower guardrail device of a sintering machine trolley is shown;

[0021] Explanation of the reference numerals in the accompanying drawings in the specification: 1. lower railing; 10. grate pin hole; 11. first longitudinal reinforcing rib; 12. second longitudinal reinforcing rib; 13. third longitudinal reinforcing rib; 14. transverse reinforcing rib; 15. oblique reinforcing rib; 16. threaded hole; 2. grate pin; 21. plug-in portion; 22. locking portion; 221. locking fixing hole; 3. first bolt; 4. locking nut; 5. sealing liner; 7. high temperature resistant asbestos pad; 8. first sealing gasket; 9. second sealing gasket. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0023] Reference Figure 1-5 As shown, the utility model provides a lower guardrail device for a sintering machine trolley, comprising a lower guardrail 1, wherein the lower guardrail 1 is fixedly arranged on both sides of the sintering machine trolley, and the lower guardrail 1 is provided with a grate bar plug hole 10 and a threaded hole 16, wherein the grate bar plug hole 10 is a conical hole, wherein the taper of the conical hole is 1:30; a matching grate bar plug 2 is inserted into the conical hole, and the grate bar plug 2 comprises a plug-in portion 21 and a locking portion 22, wherein the surface of the plug-in portion 21 is provided with a conical surface, and the taper of the grate bar plug 2 is 1:30; a locking and fixing hole 221 is provided on the locking portion 22, and a first bolt 3 passes through the threaded hole 16 and the locking and fixing hole 221 in sequence and is connected with a locking nut 4, so as to realize the fixation of the grate bar plug 2 and the lower guardrail 1.

[0024] Furthermore, a sealing liner 5 is provided on the side wall of the lower guardrail 1, and a plurality of fixing holes are provided on the sealing liner 5, and the sealing liner 5 is connected to the lower guardrail 1 by a second bolt. The sealing liner 5 is designed to be detachable, and the sealing liner 5 on both sides of the lower guardrail 1 can be replaced in time after being worn, so as to maintain the sealing effect on both sides of the guardrail of the sintering machine trolley and reduce air leakage.

[0025] In this embodiment, the lower railing 1 is provided with a first longitudinal reinforcing rib 11, a second longitudinal reinforcing rib 12, a third longitudinal reinforcing rib 13, a transverse reinforcing rib 14 and an oblique reinforcing rib 15. The first longitudinal reinforcing rib 11 and the second longitudinal reinforcing rib 12 are arranged at intervals, and the third longitudinal reinforcing rib 13 coincides with the longitudinal center axis of the first longitudinal reinforcing rib 11 and the second longitudinal reinforcing rib 12 respectively; the oblique reinforcing rib 15 is arranged between the transverse reinforcing rib 14 and the second longitudinal reinforcing rib 12 and between the transverse reinforcing rib 14 and the third longitudinal reinforcing rib 13.

[0026] The width of the first longitudinal reinforcing rib 11 is greater than the width of the second longitudinal reinforcing rib 12 , and the width of the second longitudinal reinforcing rib 12 is the same as the width of the third longitudinal reinforcing rib 13 .

[0027] Preferably, the grate bar latch hole 10 is arranged on the first longitudinal reinforcing rib 11. The plug-in portion 21 of the grate bar latch 2 passes through the grate bar latch hole 10 to fix the grate bar to the lower fence 1, and the locking portion 22 of the grate bar latch 2 fits with the first longitudinal reinforcing rib 11. Since the width of the first longitudinal reinforcing rib 11 is relatively wide, the stability of the connection between the locking portion 22 and the first longitudinal reinforcing rib 11 can be ensured.

[0028] Furthermore, a high temperature resistant asbestos pad 7 is provided between the locking portion 22 of the grate bar latch 2 and the first longitudinal reinforcing rib 11. The high temperature resistant asbestos pad 7 can ensure the tightness of the connection between the locking portion 22 and the first longitudinal reinforcing rib 11, and avoid air leakage between the locking portion 22 and the first longitudinal reinforcing rib 11.

[0029] Furthermore, a first sealing gasket 8 is provided between the locking nut 4 and the locking portion 22 .

[0030] Preferably, the first sealing gasket 8 includes an asbestos gasket and a metal flat gasket. The first sealing gasket 8 is designed to ensure the tightness between the locking nut 4 and the locking portion 22 to avoid air leakage between the locking nut 4 and the locking portion 22.

[0031] Furthermore, a second sealing gasket 9 is provided between the first bolt 3 and the inner wall of the lower railing 1 .

[0032] Preferably, the second sealing gasket 9 includes a metal flat gasket and a metal spring gasket. The design of the second sealing gasket 9 can not only avoid air leakage between the first bolt 3 and the lower railing 1, but also use the metal spring gasket to prevent loosening and increase the pre-tightening force; it can also increase the fastening contact area, prevent the friction between the first bolt 3 and the lower railing 1, protect the surface of the lower railing 1, and prevent the surface of the lower railing 1 from being scratched when the bolts and nuts are tightened.

[0033] In this embodiment, the lower guard plate 1 is provided with a plurality of mounting holes, and the lower guard plate 1 is fastened and fixed to the sintering machine trolley by a third bolt.

[0034] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A sintering machine trolley lower guardrail device, characterized in that: It includes a lower guardrail, which is fixedly arranged on both sides of the sintering machine trolley. The lower guardrail is provided with a grate bar pin hole and a threaded hole. The grate bar pin hole is a conical hole. A matching grate bar pin is inserted into the conical hole. The grate bar pin includes an inserting part and a locking part. The surface of the inserting part is provided with a conical surface. The locking part is provided with a locking and fixing hole. The first bolt passes through the threaded hole and the locking and fixing hole in sequence and is connected with the locking nut to realize the fixation of the grate bar pin and the lower guardrail.

2. A sintering machine trolley lower guardrail device according to claim 1, characterized in that: The side walls of the lower railing are each provided with a sealing liner, the sealing liner is provided with a plurality of fixing holes, and the sealing liner is connected to the lower railing via a second bolt.

3. The lower guardrail device of a sintering machine trolley according to claim 1, characterized in that: The lower rail is provided with a first longitudinal reinforcing rib, a second longitudinal reinforcing rib, a third longitudinal reinforcing rib, a transverse reinforcing rib and an oblique reinforcing rib, the first longitudinal reinforcing rib and the second longitudinal reinforcing rib are arranged at intervals, and the third longitudinal reinforcing rib coincides with the longitudinal central axis of the first longitudinal reinforcing rib and the second longitudinal reinforcing rib respectively; The oblique reinforcing ribs are arranged between the transverse reinforcing ribs and the second longitudinal reinforcing ribs and between the transverse reinforcing ribs and the third longitudinal reinforcing ribs.

4. The lower guardrail device of a sintering machine trolley according to claim 3 is characterized in that: The width of the first longitudinal reinforcing rib is greater than the width of the second longitudinal reinforcing rib, and the width of the second longitudinal reinforcing rib is the same as the width of the third longitudinal reinforcing rib.

5. The lower guardrail device of a sintering machine trolley according to claim 4, characterized in that: The grate bar pin hole is arranged on the first longitudinal reinforcing rib.

6. The lower guardrail device of a sintering machine trolley according to claim 3, characterized in that: A high temperature resistant asbestos pad is provided between the locking portion of the grate bar latch and the first longitudinal reinforcing rib.

7. The lower guardrail device of a sintering machine trolley according to claim 6, characterized in that: A first sealing gasket is provided between the locking nut and the locking portion.

8. The lower guardrail device of a sintering machine trolley according to claim 7, characterized in that: The first sealing gasket includes an asbestos gasket and a metal flat gasket.

9. The lower guardrail device of a sintering machine trolley according to claim 8, characterized in that: A second sealing gasket is provided between the first bolt and the inner wall of the lower railing.

10. The lower guardrail device of a sintering machine trolley according to claim 9, characterized in that: The second sealing gasket includes a metal flat gasket and a metal spring gasket.

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