Conveying pipe inner wall protection structure of cement clinker screw conveyor

Abstract

The utility model discloses a conveying pipe inner wall protection structure of a cement clinker screw conveyer, which comprises a conveying pipe and a wear-resistant sheet, the conveying pipe is provided with a conveying inner cavity, the conveying inner cavity is provided with a screw shaft, the inner wall of the conveying pipe is provided with at least three limiting parts extending inwards, a guide interval is enclosed between the two limiting parts, and the wear-resistant sheet is arranged on the inner wall of the conveying pipe. The wear-resisting piece is detachably installed in the guide interval, an elastic structure is arranged between the outer wall of the wear-resisting piece and the inner wall of the conveying pipe, the elastic structure is used for providing elastic force for the wear-resisting piece to move towards the axis direction, and a gap is formed between the wear-resisting piece and the peripheral edge of the spiral shaft. The wear-resisting pieces can define a limiting interval through the arrangement of the wear-resisting pieces, the stability of spiral conveying is guaranteed through the gaps between the wear-resisting pieces and the peripheral blades of the spiral shaft, when the spiral shaft deviates from the axis and collides, the peripheral blades make contact with the wear-resisting pieces, then abrasion and collision to the pipe wall of the conveying pipe are reduced, and the service life of the conveying pipe is prolonged. And damage and overall replacement of the conveying pipe are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral ship unloader field, especially relates to a conveying pipe inner wall protection structure of cement clinker screw conveyor. BACKGROUND

[0002] Spiral ship unloader is with the horizontal spiral conveyor, vertical spiral conveyor and the special material taking device of non-flexible traction member as the main working mechanism's ship unloading machinery, it is a kind of high-efficiency continuous bulk cargo ship unloader. Using ship unloader can greatly improve the unloading efficiency, the smallest dust pollution can keep the environment clean, high-efficiency environmental protection.

[0003] To apply spiral conveyor with cement clinker conveying field, for the characteristics of cement clinker granularity, strong abrasion resistance, high hardness, the structure of traditional spiral conveyor cannot be applied, its actual concentricity is greatly influenced by rotation and the resistance of cement clinker, the problem of the outer periphery of spiral shaft and the inner wall of conveying pipe contact or friction is prone to occur, thus the service life of conveying pipe is influenced, the blade of spiral shaft is also prone to damage, and the outer periphery gap is prone to cause, which influences the rotation concentricity. SUMMARY

[0004] The utility model discloses a kind of conveying pipe inner wall protection structure of cement clinker screw conveyor, to improve the existing conveying pipe structure, by setting wear plate, to reduce the replacement of conveying pipe caused by conveying pipe damage, improve the use stability of conveying pipe.

[0005] To achieve the above object, the utility model provides a kind of conveying pipe inner wall protection structure of cement clinker screw conveyor, comprising:

[0006] Conveying pipe, the conveying pipe is equipped with conveying inner cavity, the conveying inner cavity is equipped with spiral shaft, the inner wall of the conveying pipe is equipped with at least three limit portions extending inwards, and the interval is formed between two limit portions;

[0007] Wear plate, the wear plate can be detachably installed in the interval, and can slide along the height of the interval and make the inner wall of wear plate extend the inner wall of limit portion, the outer wall of wear plate and the inner wall of conveying pipe are equipped with elastic structure, the elastic structure is used to provide the elastic force of wear plate to the axial direction movement, and the gap between wear plate and the outer periphery of spiral shaft is equipped.

[0008] In actual transportation process, cement clinker is mainly conveyed by spiral shaft, so the smaller the gap between the inner wall of conveying pipe and the inner wall between spiral shaft and conveying pipe, the better its conveying stability is, but when the gap is small, the resistance of cement plastic and rotation concentricity and other factors, then the inner wall of conveying pipe and the outer periphery of spiral shaft are prone to collision or interference, leading to conveying pipe damage or wear, which influences service life and stability.

[0009] Therefore, the wear-resistant sheet is arranged to form a limiting interval, the stability of the spiral conveying is ensured through the gap between the wear-resistant sheet and the outer peripheral edge of the spiral shaft, when the spiral shaft deviates from the center and collides, the outer peripheral edge contacts the wear-resistant sheet, thereby reducing the wear and collision of the conveying pipe wall, and damage and overall replacement of the conveying pipe are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a perspective view of the utility model;

[0011] Figure 2 It is a sectional view of the utility model; Figure 1 ;

[0012] Figure 3 It is a sectional view two of the utility model;

[0013] Figure 4 It is a perspective view of the utility model hidden conveying pipe rear;

[0014] Figure 5 It is a local enlarged view.

[0015] In the drawings,

[0016] 1 is a conveying pipe, 11 is a conveying inner cavity, 12 is a spiral shaft, 12a is an outer peripheral edge,

[0017] 2 is a limiting part, 2a is an inclined surface,

[0018] 3 is a wear-resistant sheet,

[0019] 41 is a guide rod, 42 is a guide hole, 43 is a nut,

[0020] 5 is a top spring, 51 is a guide pipe, 52 is a driving rod,

[0021] 6 is an anti-collision rib. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] It should be noted that if the embodiments of the utility model have the directionality indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0024] In addition, if the embodiments of the utility model have the description of "first" or "second", etc., the description of "first" or "second" is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0025] As shown in Figures 1 to 5 A conveying pipe inner wall protection structure of a cement clinker screw conveyor, comprising:

[0026] A conveying pipe 1, which is provided with a conveying inner cavity 11, the conveying inner cavity 11 is provided with a spiral shaft 12, and the inner wall of the conveying pipe 1 is provided with at least three limiting portions 2 extending inward, and a guide interval is formed between two limiting portions 2;

[0027] A wear-resistant sheet 3, which is detachably installed in the guide interval and can slide along the height of the guide interval and make the inner wall of the wear-resistant sheet 3 extend out of the inner wall of the limiting portion 2, an elastic structure is arranged between the outer wall of the wear-resistant sheet 3 and the inner wall of the conveying pipe 1, the elastic structure is used to provide the elastic force of the movement of the wear-resistant sheet 3 to the axial direction, and a gap is arranged between the wear-resistant sheet 3 and the outer peripheral edge 12a of the spiral shaft 12.

[0028] In the actual transportation process, the cement clinker is mainly conveyed by the spiral shaft 12, so that the smaller the gap between the inner wall of the conveying pipe 1 and the spiral shaft 12 and the inner wall of the conveying pipe 1, the better the conveying stability, but when the gap is small, the resistance of the cement plastic and the rotating concentricity and other factors, the inner wall of the conveying pipe 1 and the outer peripheral edge 12a of the spiral shaft 12 are easy to collide or interfere, which causes the conveying pipe 1 to be damaged or worn, and affects the service life and stability;

[0029] Therefore, the wear-resistant sheet 3 can be surrounded by the limiting interval through the arrangement of the plurality of wear-resistant sheets 3, the stability of the spiral conveying is ensured through the gap between the wear-resistant sheet 3 and the outer peripheral edge 12a of the spiral shaft 12, when the spiral shaft 12 deviates from the shaft center and collides, the outer peripheral edge 12a contacts the wear-resistant sheet 3, thereby reducing the abrasion and collision of the conveying pipe 1, and the damage and overall replacement of the conveying pipe 1 are avoided.

[0030] Specifically, the limiting part 2 is provided with four, and the corresponding wear-resistant sheet 3 is provided with four. Further, the installation and the production of the wear-resistant sheet 3 are facilitated.

[0031] In the embodiment of the utility model, the two sides of the limiting part 2 are inclined surfaces 2a, which can ensure the installation and guidance of the wear-resistant sheet 3.

[0032] Specifically, the wear-resistant sheet 3 is in an arc shape.

[0033] In the embodiment of the utility model, the arc length direction of the wear-resistant sheet 3 is provided with at least two integrally-formed guide rods 41, and the conveying pipe 1 is provided with a guide hole 42 matched with the guide rod 41.

[0034] The guide rod 41 is distributed along the length direction of the wear-resistant sheet 3, one end of the guide rod 41 extending out of the conveying pipe 1 is provided with a nut 43, and a gap is arranged between the nut 43 and the pipe wall of the conveying pipe 1, thereby realizing the positioning and sliding of the wear-resistant sheet 3, that is, the gap has a predetermined movement interval.

[0035] Specifically, the elastic structure is an elastic pad arranged between the wear-resistant sheet 3 and the inner wall of the conveying pipe 1, and the installation structure is simpler, and a predetermined movement gap can be provided, that is, even if the outer peripheral edge 12a contacts the wear-resistant sheet 3, rigid collision can also be effectively reduced.

[0036] In the embodiment of the utility model, the elastic structure is a guide pipe 51 arranged in the conveying pipe 1, the wear-resistant sheet 3 is provided with a driving rod 52 slidingly installed in the guide pipe 51, a tension spring 5 is arranged between the driving rod and the guide pipe, and the tension spring 5 is used for applying an elastic force of the wear-resistant sheet 3 to the shaft center direction,

[0037] and the positioning of the wear-resistant sheet 3 is realized through the cooperation of the nut 43 and the guide rod 41.

[0038] Specifically, the outer peripheral wall of the conveying pipe 1 is provided with an anti-collision rib 6 distributed along the length thereof, and the anti-collision rib 6 is integrally formed with the limiting part 2, for example, welded and fixed at the position, and the deformation of the conveying pipe 1 is reduced.

[0039] In the embodiment of the utility model, the material of the wear-resistant sheet 3 is nm400 steel or nm500 steel, both of which have high-temperature-resistant and wear-resistant properties.

[0040] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application, as described in the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A structure for protecting the inner wall of a conveying pipe of a cement clinker screw conveyor, characterized by, The application relates to a conveying pipe. The conveying pipe is provided with a conveying inner cavity, and the conveying inner cavity is provided with a spiral shaft; the inner wall of the conveying pipe is provided with at least three inwardly extending limiting portions, and a guide interval is formed between two limiting portions. A wear-resistant sheet is detachably installed in the guide interval and can slide along the height of the guide interval and make the inner wall of the wear-resistant sheet extend out of the inner wall of the limiting portion; an elastic structure is arranged between the outer wall of the wear-resistant sheet and the inner wall of the conveying pipe, the elastic structure is used for providing elastic force for the movement of the wear-resistant sheet to the axial center direction, and a gap is arranged between the wear-resistant sheet and the outer peripheral edge of the spiral shaft.

2. The cement clinker screw conveyor's inner wall protection structure according to claim 1, characterized in that: The limiting portions are provided with four limiting portions, and the wear-resistant sheets are provided with four wear-resistant sheets.

3. The cement clinker screw conveyor's conveying pipe inner wall protection structure according to claim 1, characterized in that: The two sides of the limiting portion are inclined surfaces.

4. The cement clinker screw conveyor's inner wall protection structure according to claim 1, characterized in that: The wear-resistant sheet is in an arc shape.

5. The cement clinker screw conveyor's conveying pipe inner wall protection structure according to claim 1, characterized in that: The arc length direction of the wear-resistant sheet is provided with at least two integrally formed guide rods, and the conveying pipe is provided with guide holes matched with the guide rods. The guide rods are distributed along the length direction of the wear-resistant sheet, and the end of the guide rod extending out of the conveying pipe is provided with a nut, and a gap is arranged between the nut and the pipe wall of the conveying pipe.

6. The cement clinker screw conveyor's inner wall protection structure according to claim 1, characterized in that: The elastic structure is an elastic pad arranged between the wear-resistant sheet and the inner wall of the conveying pipe.

7. The cement clinker screw conveyor's conveying pipe inner wall protection structure according to claim 1, characterized in that: The elastic structure is a guide pipe of the conveying pipe, the wear-resistant sheet is provided with a driving rod slidably installed in the guide pipe, a top spring is arranged between the driving rod and the guide pipe, and the top spring is used for applying elastic force to the wear-resistant sheet to the axial center direction.

8. The cement clinker screw conveyor's conveying pipe inner wall protection structure according to claim 1, characterized in that: The outer peripheral wall of the conveying pipe is provided with anti-collision ribs distributed along the length direction of the conveying pipe, and the anti-collision ribs are integrally formed with the limiting portions.

9. The cement clinker screw conveyor's conveying pipe inner wall protection structure according to claim 1, characterized in that: The material of the wear-resistant sheet is nm400 steel material or nm500 steel material.

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