Inner supporting structure of rectangular steel coal bucket

Abstract

The utility model relates to an inner support structure of a rectangular steel coal bucket, which comprises the rectangular steel coal bucket and a steel truss arranged in the rectangular steel coal bucket, the rectangular steel coal bucket consists of a coal bunker at the upper section and a hopper at the lower section, and the steel truss perpendicular to the inner side wall of the rectangular steel coal bucket is arranged in the coal bunker at the upper section. The steel truss is composed of an upper chord member, web members and a lower chord member which are sequentially arranged from top to bottom, the end portions of the two sides of the upper chord member and the end portions of the two sides of the lower chord member are connected with the inner side wall of the coal bunker, the web members which are obliquely arranged are arranged between the upper chord member and the lower chord member, and the two ends of each web member are connected with the upper chord member and the lower chord member respectively. Every two adjacent web members are connected end to end and used for well fixing and supporting the upper chord members and the lower chord members. The utility model has the characteristics of simple structure, reasonable force transmission, convenience in construction, material saving, lower manufacturing cost and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering structures, and in particular relates to an inner supporting structure of a rectangular steel coal hopper. Background Art

[0002] The rectangular steel coal hopper is a conventional structural type of raw coal hopper in thermal power plants. The coal accumulation load in the rectangular steel coal hopper is relatively large. Under the condition that the length-width ratio of the rectangular steel coal hopper is relatively large, the load on the beam in the long side direction is relatively high, and the lateral deformation of the coal hopper is relatively large. The steel plate thickness of the rectangular steel coal hopper designed accordingly is large and the steel consumption is high, which increases the project cost and the difficulty of construction. Therefore, an internal support structure of the rectangular steel coal hopper is designed to overcome the above problems. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide an internal support structure of a rectangular steel coal hopper with a simple and reasonable structure, small steel plate thickness, low steel consumption, convenient construction, reasonable cost and better force-bearing performance. The utility model reduces the calculated span of the long side of the rectangular steel coal hopper by adding an internal support structure; the internal support structure adopts a stainless steel truss form to reduce the deformation and abrasion effects of coal stacking on non-truss type internal supports.

[0004] The utility model is realized through the following technical scheme: an inner support structure of a rectangular steel coal hopper, comprising a rectangular steel coal hopper and a steel truss arranged in the rectangular steel coal hopper, the rectangular steel coal hopper is composed of an upper coal bunker and a lower hopper, a steel truss perpendicular to the inner wall of the rectangular steel coal hopper is arranged in the upper coal bunker, the steel truss is composed of an upper chord, a web and a lower chord arranged in sequence from top to bottom, both side ends of the upper chord and the lower chord are connected to the inner wall of the coal bunker, a plurality of obliquely arranged webs are arranged between the upper chord and the lower chord, the two ends of each web are respectively connected to the upper chord and the lower chord, and the two adjacent webs are connected end to end, so as to play a good fixing and supporting role for the upper chord and the lower chord.

[0005] Preferably, the coal bunker is composed of steel plates, steel beams and steel columns, wherein steel beams are installed inside the steel columns, the steel columns and steel beams form a coal bunker frame, and vertically arranged steel plates are installed on the inner side walls of the coal bunker frame, and the steel columns, steel beams and steel plates are formed by pouring concrete to form the coal bunker.

[0006] Preferably, the steel plate is connected to the upper chord and the lower chord and fixed by welding, and the steel beam is an H-shaped steel beam.

[0007] Preferably, the cross-sectional diameters of the upper chord, the lower chord and the web are not less than 100 mm, and the wall thicknesses of the lower chord and the web are not less than 6 mm.

[0008] Preferably, the upper chord, the lower chord and the web are made of stainless steel tubes.

[0009] Preferably, the coal bunker in the upper section is of a rectangular structure, and the hopper in the lower section is of a conical structure, so as to facilitate feeding and discharging of materials.

[0010] The beneficial effects of the utility model are as follows:

[0011] The internal support structure designed by the utility model can well cope with the raw coal hopper structure type with a larger length and width ratio. The utility model has the characteristics of simple structure, reasonable force transmission, convenient construction, material saving, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 for Figure 1 AA section view. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by the terms such as "up", "down", "left", "right", "inside", "outside", "horizontal" and "vertical" is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or original referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] The present invention will be described in detail below with reference to the accompanying drawings: Figure 1-2 As shown, an inner support structure of a rectangular steel coal hopper comprises a rectangular steel coal hopper 2 and a steel truss 1 arranged in the rectangular steel coal hopper 2, wherein the rectangular steel coal hopper 2 is composed of an upper coal bunker 6 and a lower hopper 7, and a steel truss 1 perpendicular to the inner wall of the rectangular steel coal hopper 2 is arranged in the upper coal bunker 6, and the steel truss 1 is composed of an upper chord 3, a web 5 and a lower chord 4 arranged in sequence from top to bottom, and both side ends of the upper chord 3 and the lower chord 4 are connected to the inner wall of the coal bunker 6, and a plurality of obliquely arranged webs 5 are arranged between the upper chord 3 and the lower chord 4, and the two ends of each web 5 are respectively connected to the upper chord 3 and the lower chord 4, and the two adjacent webs 5 are connected end to end, so as to play a good fixing and supporting role for the upper chord 3 and the lower chord 4.

[0017] like Figure 2As shown, the coal bunker 6 is composed of a steel plate 8, a steel beam 9 and a steel column 10, wherein the steel beam 9 is installed inside the steel column 10, the steel column 10 and the steel beam 9 form a coal bunker frame, and a vertically arranged steel plate 8 is installed on the inner side wall of the coal bunker frame, and the steel column 10, the steel beam 9 and the steel plate 8 form the coal bunker 6 by pouring concrete.

[0018] The steel plate 8 is connected to the upper chord 3 and the lower chord 4 and fixed by welding, and the steel beam 9 is an H-shaped steel beam.

[0019] The cross-sectional diameters of the upper chord 3 , the lower chord 4 and the web 5 are not less than 100 mm, and the wall thicknesses of the lower chord 4 and the web 5 are not less than 6 mm.

[0020] The upper chord bar 3, the lower chord bar 4 and the belly bar 5 are stainless steel pipes, the rectangular steel coal hopper 2 is made of carbon steel, and the overall structure of the utility model is completed through on-site construction. The upper section of the coal bunker 6 is a rectangular structure, and the lower section of the hopper 7 is a conical structure, which is used to facilitate feeding and discharging.

[0021] The cross-sectional shape of the coal bunker of the utility model changes from a rectangle to a circle from top to bottom; the coal bunker is composed of a steel plate, a steel beam and a steel column; the steel truss is located within the height range of the coal bunker; the arrangement direction of the steel truss is perpendicular to the long side direction of the coal bunker; the arrangement direction of the upper chord and the lower chord are connected to the steel plate, and the connection type is butt welding; the connection points of the upper chord and the lower chord and the steel plate are located in the strong axis plane of the steel beam.

[0022] The specific embodiments described herein are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An inner support structure of a rectangular steel coal hopper, comprising a rectangular steel coal hopper (2) and a steel truss (1) arranged in the rectangular steel coal hopper (2), characterized in that: The rectangular steel coal hopper (2) is composed of an upper coal bunker (6) and a lower hopper (7). A steel truss (1) is arranged in the upper coal bunker (6) and is perpendicular to the inner wall of the rectangular steel coal hopper (2). The steel truss (1) is composed of an upper chord rod (3), a web rod (5) and a lower chord rod (4) arranged in sequence from top to bottom. The ends of the upper chord rod (3) and the lower chord rod (4) are connected to the inner wall of the coal bunker (6). A plurality of obliquely arranged web rods (5) are arranged between the upper chord rod (3) and the lower chord rod (4). The two ends of each web rod (5) are respectively connected to the upper chord rod (3) and the lower chord rod (4), and the two adjacent web rods (5) are connected end to end, so as to play a good fixing and supporting role for the upper chord rod (3) and the lower chord rod (4).

2. The inner support structure of the rectangular steel coal hopper according to claim 1 is characterized in that: The coal bunker (6) is composed of a steel plate (8), a steel beam (9) and a steel column (10); the steel beam (9) is installed in the steel column (10); the steel column (10) and the steel beam (9) form a coal bunker frame; and a vertically arranged steel plate (8) is installed on the inner side wall of the coal bunker frame; the steel column (10), the steel beam (9) and the steel plate (8) are poured with concrete to form the coal bunker (6).

3. The inner support structure of the rectangular steel coal hopper according to claim 2 is characterized in that: The steel plate (8) is connected to the upper chord (3) and the lower chord (4) and fixed by welding, and the steel beam (9) is an H-shaped steel beam.

4. The inner support structure of the rectangular steel coal hopper according to claim 3 is characterized in that: The cross-sectional diameters of the upper chord (3), the lower chord (4) and the web (5) are not less than 100 mm, and the wall thicknesses of the lower chord (4) and the web (5) are not less than 6 mm.

5. The inner support structure of the rectangular steel coal hopper according to claim 4 is characterized in that: The upper chord (3), the lower chord (4) and the web (5) are stainless steel tubes.

6. The inner support structure of the rectangular steel coal hopper according to claim 1 is characterized in that: The coal bunker (6) of the upper section is of a rectangular structure, and the hopper (7) of the lower section is of a conical structure, for facilitating feeding and discharging of materials.

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