A wear-resistant and anti-blocking coal falling pipe

Abstract

The present invention discloses an anti-wear and anti-blocking coal chute, which relates to the technical field of coal chute, and comprises a coal chute body; a liner, which comprises a base arranged below the coal chute body, a wear-resistant layer arranged above the base, and an impact surface arranged on the upper surface of the wear-resistant layer; when entering the interior of the coal chute, the fluidity can be effectively increased by the designed curved surface; when the coal enters the impact surface, it first contacts with the arc-shaped baffle, and due to the small contact area, it has a certain impact and crushing effect, and can preliminarily crush large coal blocks; the design of the arc-shaped baffle can effectively increase the thickness of the wear-resistant layer and improve the wear resistance of the liner; the design of the arc-shaped liner does not require modification of the coal chute body, and has wider adaptability.

Description

Technical Field

[0001] The invention relates to the technical field of coal dropping pipes, and in particular to an anti-wear and anti-blocking coal dropping pipe. Background Art

[0002] As an important equipment of the coal transportation system, the coal drop pipe is not considered in the design process for the diversity of coal types, which makes it very easy for coal to impact and wear the coal drop pipe body, causing the body to wear out and leak coal; and most coal drop pipes do not consider the problem of coal drop pipe blockage caused by the loading and unloading process of wet and sticky coal. Once the coal drop pipe is worn out or blocked, it will seriously affect the safe and civilized production level of the coal transportation system, and in serious cases, it may cause the generator set to stop. Summary of the invention

[0003] In view of the problem that the existing wear-resistant and anti-clogging coal dropping pipe is easy to be blocked, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a wear-resistant and anti-blocking coal falling pipe.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a coal chute body; a liner, which includes a base disposed below the coal chute body, a wear-resistant layer disposed above the base, and an impact surface disposed on the upper surface of the wear-resistant layer.

[0006] As a preferred solution of the wear-resistant and anti-blocking coal chute of the present invention, the liner includes a curved liner and a straight liner, and the combination of the two liners can realize the curvature of the corners of the coal chute body.

[0007] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, the impact surface of the curved lining plate is set to be arc-shaped.

[0008] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, an arc-shaped baffle is provided on one side of the impact surface.

[0009] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, the arc-shaped baffle is formed by fusion welding.

[0010] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, bolts are arranged on the back of the liner plate, and the bolts are welded to the back plate.

[0011] As a preferred solution of the wear-resistant and anti-blocking coal chute described in the present invention, the coal chute body is made of steel.

[0012] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, the base body is made of Q235B steel.

[0013] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, the wear-resistant layer is made of alloy material with a Cr content greater than 20%.

[0014] As a preferred solution of the wear-resistant and anti-blocking coal falling pipe of the present invention, the impact surface is made of alloy material with a Cr content of more than 30%.

[0015] The beneficial effects of the present invention are as follows: when entering the coal drop pipe, the fluidity can be effectively increased through the designed curved surface; when the coal enters the impact surface, it first contacts the arc-shaped baffle plate, and due to the small contact area, it has a certain impact crushing effect and can initially crush large coal lumps; the design of the arc-shaped baffle plate can effectively increase the thickness of the wear-resistant layer and improve the wear resistance of the lining plate; the design of the arc-shaped lining plate does not require modification of the coal drop pipe body and has a wider adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the wear-resistant and anti-blocking coal falling pipe of the present invention.

[0018] Figure 2 It is a schematic diagram of the curved lining plate structure described in the present invention.

[0019] Figure 3 The present invention is described Figure 2 Front view of the structure.

[0020] Figure 4 It is a schematic diagram of the arc baffle structure described in the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Example 1

[0026] Reference Figure 1-3 , provides an anti-wear and anti-blocking coal chute, comprising a coal chute body 100; a liner 200, which comprises a base 204 arranged below the coal chute body 100, a wear-resistant layer 205 arranged above the base 204, and an impact surface 203 arranged on the upper surface of the wear-resistant layer 205;

[0027] The internal lining 200 can be modified to eliminate the internal corners of the coal drop pipe, so as to realize the curved surface of the corners of the coal drop pipe, which is beneficial to improve the material flow performance. In addition, an arc surface is made by fusion welding on the direct impact surface 203 and the back side of the material. On the one hand, it can reduce the contact area between the coal and the coal drop pipe during impact to produce a certain crushing ability, and on the other hand, it can increase the thickness of the wear-resistant layer 205.

[0028] Specifically, the liner 200 includes a curved liner 201 and a straight liner 202. The combination of the two liners 200 can realize the curvature of the corners of the coal drop pipe body 100. The key is to complete the curvature of the right-angle coal drop pipe in the form of a combination of the curved liner 201 and the ordinary liner 200.

[0029] Furthermore, the impact surface 203 of the curved lining plate 201 is configured to be arc-shaped, and the designed curved surface can effectively increase fluidity.

[0030] Furthermore, an arc-shaped baffle 206 is provided on one side of the impact surface 203. The key is to realize the crushing function in the form of the arc-shaped baffle 206, and to increase the thickness of the wear-resistant layer 205, thereby improving the overall performance of the coal drop pipe.

[0031] Furthermore, bolts 207 are provided on the back of the liner 200, and the bolts 207 are welded to the back plate. The key is that the bolts 207 are directly welded to the back of the curved liner 201, and there is no risk of the liner 200 falling off due to internal wear.

[0032] Example 2

[0033] Reference Figure 1-4 This embodiment is different from the first embodiment in that the arc baffle 206 is formed by fusion welding. This welding method can ensure that the metal structure at the joint is tight, the welding strength is very high, the reliability of welding is greatly improved, and the welding speed is fast. Fusion welding can greatly improve production efficiency in mass production. Compared with other welding methods, fusion welding connects two metal materials together faster and is more convenient to operate.

[0034] The rest of the structure is the same as that of Example 1.

[0035] Example 3

[0036] Reference Figure 1-4 This embodiment is different from the above embodiments in that the coal dropping pipe body 100 is made of steel.

[0037] Specifically, the substrate 204 is made of Q235B steel;

[0038] Q235B steel has a yield strength of 235MPa and a tensile strength between 375-460MPa, with good strength and toughness. It also has good ductility and impact toughness, and can maintain good mechanical properties under various loads and low temperature environments; good processing performance: Q235B steel is easy to cut, drill, bend and weld, and is suitable for various complex processing needs. Its weld quality is stable and reliable, and is suitable for the manufacturing process of large structures or equipment.

[0039] Furthermore, the wear-resistant layer 205 is made of an alloy material containing more than 20% Cr.

[0040] Furthermore, the impact surface 203 is made of an alloy material containing more than 30% Cr.

[0041] Alloy materials with a Cr content greater than 20% and the higher the Cr content, the greater the benefits, with the following benefits: Improved corrosion resistance: High chromium content significantly enhances the alloy's oxidation resistance and corrosion resistance, especially in strong acidic media and environments containing chloride ions. Alloys with a chromium content greater than 30% exhibit extremely strong corrosion resistance in solutions such as sulfuric acid and nitric acid; Enhanced thermal stability: The high chromium content enables the alloy to perform well in high temperature environments and has excellent thermal stability. In addition, elements such as molybdenum and tungsten added to the alloy further improve its heat resistance and corrosion resistance; Prevent intergranular corrosion: The combination of high chromium content and low carbon content, plus an appropriate amount of niobium, gives the alloy good resistance to intergranular corrosion and the ability to maintain stable performance in complex environments.

[0042] The rest of the structure is the same as that of Example 2.

[0043] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0044] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0045] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wear-resistant and anti-blocking coal falling pipe, characterized by: include, Coal drop pipe body (100); The lining plate (200) comprises a base (204) arranged below the coal chute body (100), a wear-resistant layer (205) arranged above the base (204), and an impact surface (203) arranged on the upper surface of the wear-resistant layer (205).

2. The wear-resistant and anti-blocking coal falling pipe according to claim 1, characterized in that: The lining plate (200) comprises a curved lining plate (201) and a straight lining plate (202), and the combination of the two lining plates (200) can realize curved surfaces on the edges and corners of the coal chute body (100).

3. The wear-resistant and anti-blocking coal falling pipe according to claim 2 is characterized in that: The impact surface (203) of the curved lining plate (201) is arranged to be arc-shaped.

4. The wear-resistant and anti-blocking coal falling pipe according to claim 3 is characterized in that: An arc-shaped baffle (206) is provided on one side of the impact surface (203).

5. The wear-resistant and anti-blocking coal falling pipe according to claim 4, characterized in that: The arc-shaped baffle (206) is formed by fusion welding.

6. The wear-resistant and anti-blocking coal falling pipe according to claim 5, characterized in that: Bolts (207) are provided on the back side of the lining plate (200), and the bolts (207) are welded to the back plate.

7. The wear-resistant and anti-blocking coal falling pipe according to claim 6, characterized in that: The coal drop pipe body (100) is made of steel.

8. The wear-resistant and anti-blocking coal falling pipe according to claim 7, characterized in that: The substrate (204) is made of Q235B steel.

9. The wear-resistant and anti-blocking coal falling pipe according to claim 8, characterized in that: The wear-resistant layer (205) is made of an alloy material containing more than 20% Cr.

10. The wear-resistant and anti-blocking coal falling pipe according to claim 9, characterized in that: The impact surface (203) is made of alloy material containing more than 30% Cr.

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