Multi-bin square-to-round supporting type steel coal bucket

Abstract

The utility model discloses a multi-bin square-to-round supporting type steel coal bucket, and belongs to the technical field of thermal power generation. Comprising a coal hopper rectangular section, a coal hopper square-cone section, a coal hopper square-to-round section and a coal hopper conical funnel section, the coal hopper square cone section is arranged below the coal hopper rectangular section, the coal hopper square-to-round section is arranged below the coal hopper square cone section, and the coal hopper conical funnel section is arranged below the coal hopper square-to-round section; the coal hopper square-cone section comprises a first coal hopper square-cone section, a second coal hopper square-cone section and a third coal hopper square-cone section; the coal hopper square-to-round section comprises a first coal hopper square-to-round section, a second coal hopper square-to-round section and a third coal hopper square-to-round section; the coal bucket conical funnel section comprises a first coal bucket conical funnel section, a second coal bucket conical funnel section and a third coal bucket conical funnel section; and the first coal hopper square-cone section, the second coal hopper square-cone section and the third coal hopper square-cone section are communicated with the coal hopper rectangular section. The space of the bunker bay is fully utilized, so that the arrangement of the coal buckets is coordinated with the plane arrangement of the bunker bay, and the height of the coal bucket layer is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power generation, in particular to a multi-bin square-to-circular supporting steel coal hopper. Background Art

[0002] The steel coal hopper in a thermal power plant is a special structure used to store raw coal or other fuels. It is an important facility in a power plant. The steel coal hopper is a high-position silo arranged in a coal-fired thermal power plant. It is usually made of steel and has a bucket-shaped appearance. It can hold a large amount of coal. There is usually a sliding door inside the steel coal hopper to facilitate loading and unloading of goods. This equipment is usually used at the feed port of the coal mill, which can improve the coal feeding efficiency, reduce the risk of coal powder accumulation, and ensure the normal operation of the coal mill.

[0003] Under normal conditions, power plants generally use regular steel coal hoppers, that is, their basic shape is a cylindrical silo wall on the top and a conical funnel silo bottom on the bottom. There is a circular ring support beam below the silo wall, and the entire structure is supported on the frame coal hopper beam of the main powerhouse through eight supports. The advantage of this regular coal hopper is that the coal hopper itself has good mechanical performance and requires less steel per unit volume; its disadvantage is that since most coal hoppers are arranged in rectangular coal bunker rooms, they occupy a large area in the plane, that is, for the volume of the unit coal hopper, it requires a larger coal bunker space, which often requires increasing the height of the corresponding floor of the main powerhouse, and the overall cost is high. Utility Model Content

[0004] In view of the problem in the prior art that the coal hopper occupies a large space and requires a larger space between coal bunkers, which leads to the need to increase the height of the corresponding floors of the main plant, the utility model provides a multi-bin square to round supported steel coal hopper, which fully utilizes the space between coal bunkers, coordinates the layout of the coal hopper with the plane layout of the coal bunkers, and reduces the height of the coal hopper layer.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0006] A multi-bin square-to-round support steel coal hopper, comprising a coal hopper rectangular section, a coal hopper square cone section, a coal hopper square-to-round section and a coal hopper conical funnel section; a coal hopper square cone section is arranged below the coal hopper rectangular section, a coal hopper square-to-round section is arranged below the coal hopper square cone section, and a coal hopper conical funnel section is arranged below the coal hopper square-to-round section; the coal hopper square cone section comprises a first coal hopper square cone section, a second coal hopper square cone section and a third coal hopper square cone section; the coal hopper square-to-round section comprises a first coal hopper square-to-round section, a second coal hopper square-to-round section and a third coal hopper square-to-round section; the coal hopper conical funnel section comprises a first coal hopper conical funnel section, a second coal hopper conical funnel section and a third coal hopper conical funnel section Three coal hopper conical funnel sections; the first coal hopper square cone section, the second coal hopper square cone section and the third coal hopper square cone section are connected to the coal hopper rectangular section; the first coal hopper square to round section is connected to the first coal hopper square cone section; the second coal hopper square to round section is connected to the second coal hopper square cone section; the third coal hopper square to round section is connected to the third coal hopper square cone section; the first coal hopper conical funnel section is connected to the first coal hopper square to round section; the second coal hopper conical funnel section is connected to the second coal hopper square to round section; the second coal hopper conical funnel section is connected to the first coal hopper square to round section; a compartment partition is provided between the first coal hopper rectangular section and the second coal hopper rectangular section.

[0007] Optionally, the coal hopper rectangular section includes a first coal hopper rectangular section and a second coal hopper rectangular section; the first coal hopper square cone section and the second coal hopper square cone section are arranged below the first coal hopper rectangular section; and a third coal hopper square cone section is arranged below the second coal hopper rectangular section.

[0008] Optionally, the bin partition plate extends to the connection between the second coal hopper square cone section and the third coal hopper square cone section.

[0009] Optionally, a plurality of partition wedge-shaped stiffening ribs are provided on the contact surfaces between the bin partition plate and the rectangular section of the coal hopper, the second coal hopper square cone section and the third coal hopper square cone section.

[0010] Optionally, a column support is provided between the rectangular section of the coal hopper and the frame beam of the main plant building.

[0011] Optionally, the rectangular section of the coal hopper, the square cone section of the coal hopper and the square-to-round section of the coal hopper are surrounded by a plurality of horizontal stiffening ribs of the hopper wall.

[0012] Optionally, the material of the bucket wall horizontal stiffening ribs is steel.

[0013] Optionally, a cone bucket vertical stiffening plate is provided on the outer side of the connection between the first coal bucket square cone section and the second coal bucket square cone section.

[0014] Optionally, a cone bucket horizontal stiffening plate is provided below the cone bucket vertical stiffening plate.

[0015] Optionally, welding is adopted between the rectangular section of the coal hopper, the square cone section of the coal hopper, the square-to-circular section of the coal hopper and the cone funnel section of the coal hopper.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a multi-bin square-to-round support steel coal hopper, which forms a multi-bin square-to-round coal hopper body through a coal hopper rectangular section, a coal hopper square cone section, a coal hopper square-to-round section and a coal hopper cone funnel section. The welded steel columns around the coal hopper rectangular section are supported on the concrete beam to achieve stable support of the coal hopper body. Different bins in the coal hopper rectangular section are separated by bin partitions. The horizontal stiffening ribs made of steel are connected around the outer wall plate of the coal hopper rectangular section to ensure the strength and rigidity of the coal hopper body. The coal hopper structure of the utility model is square on the upper side and circular on the lower side, which can make full use of the space between coal bins and meet the requirements of process equipment layout. When used, it realizes the combination of multiple bins and the arrangement of multiple openings in one hopper. The coal hopper body is supported by multiple columns to ensure the overall structural load and stability of the coal hopper. The column support is made of steel and is easy to process. Therefore, the utility model coal hopper structure can coordinate the arrangement of the coal hopper with the structure of the coal bin, make full use of the space between the coal bins, coordinate the arrangement of the coal hopper with the plane layout of the coal bins, and reduce the height of the coal hopper layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of a multi-bin square-to-round support type steel coal hopper of the utility model;

[0020] Figure 2 It is a schematic top view of the structure of a multi-bin square-to-round support type steel coal hopper of the utility model;

[0021] Figure 3 It is a schematic diagram of the connection structure between multiple bin bucket openings of the utility model.

[0022] In the figure: 1 is a rectangular section of the coal hopper; 11 is a rectangular section of the first coal hopper; 12 is a rectangular section of the second coal hopper; 21 is a square cone section of the first coal hopper; 22 is a square cone section of the second coal hopper; 23 is a square cone section of the third coal hopper; 31 is a square-to-circle section of the first coal hopper; 32 is a square-to-circle section of the second coal hopper; 33 is a square-to-circle section of the third coal hopper; 41 is a conical funnel section of the first coal hopper; 42 is a conical funnel section of the second coal hopper; 43 is a conical funnel section of the third coal hopper; 5 is a compartment partition; 6 is a column support; 7 is a horizontal stiffening rib of the hopper wall; 8 is a wedge-shaped stiffening rib of the partition; 9 is a vertical stiffening plate of the cone hopper; 10 is a horizontal stiffening plate of the cone hopper. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] The utility model provides a multi-bin square-to-round supporting steel coal hopper, which comprises a coal hopper rectangular section 1, a coal hopper square cone section, a coal hopper square-to-round section and a coal hopper cone funnel section.

[0027] A coal hopper square cone section is arranged below the coal hopper rectangular section 1, a coal hopper square-to-round section is arranged below the coal hopper square-to-round section, and a coal hopper cone funnel section is arranged below the coal hopper square-to-round section.

[0028] like Figure 1 As shown, the coal hopper square cone section includes the first coal hopper square cone section 21, the second coal hopper square cone section 22 and the third coal hopper square cone section 23; the coal hopper square to round section includes the first coal hopper square to round section 31, the second coal hopper square to round section 32 and the third coal hopper square to round section 33; the coal hopper cone funnel section includes the first coal hopper cone funnel section 41, the second coal hopper cone funnel section 42 and the third coal hopper cone funnel section 43.

[0029] A first coal hopper square cone section 21, a second coal hopper square cone section 22 and a third coal hopper square cone section 23 are arranged below the coal hopper rectangular section 1; a first coal hopper square-to-circle section 31 is arranged below the first coal hopper square-to-circle section 21, and a first coal hopper cone funnel section 41 is arranged below the first coal hopper square-to-circle section 31; a second coal hopper square-to-circle section 32 is arranged below the second coal hopper square-to-circle section 22, and a second coal hopper cone funnel section 42 is arranged below the second coal hopper square-to-circle section 32; a third coal hopper square-to-circle section 33 is arranged below the third coal hopper square-to-circle section 23, and a third coal hopper cone funnel section 43 is arranged below the third coal hopper square-to-circle section 33.

[0030] A bin partition plate 5 is arranged between the second coal hopper square cone section 22 and the third coal hopper square cone section 23. A plurality of partition plate wedge-shaped stiffening ribs 8 are installed on both sides of the bin partition plate 5 to ensure that when uneven storage of multiple bin materials occurs in the coal hopper rectangular section 1, the bin partition plate 5 is prevented from bending due to inconsistent lateral pressure, thereby improving the strength of the bin partition plate 5, bearing the lateral load caused by the side pressure of the storage material, and extending the service life of the utility model.

[0031] The bin partition plate 5 extends from the junction of the second coal hopper square cone section 22 and the third coal hopper square cone section 23 to the top of the coal hopper rectangular section 1, so that the first coal hopper rectangular section 11 is formed above the first coal hopper square cone section 21 and the second coal hopper square cone section 22, and the second coal hopper rectangular section 12 is formed above the third coal hopper square cone section 23.

[0032] A cone bucket vertical stiffening plate 9 is provided at the connection between the first coal hopper square cone section 21 and the second coal hopper square cone section 22 to relieve the pressure on the connection between the first coal hopper square cone section 21 and the second coal hopper square cone section 22 caused by coal powder coming down from the first coal hopper rectangular section 1.

[0033] The coal hopper rectangular section 1 is transformed into a coal hopper conical funnel section by changing the coal hopper square into a circular section, which increases the coal hopper capacity and saves the building volume.

[0034] like Figure 2 As shown, the rectangular section 1 of the coal hopper is surrounded by column supports 6, which are used to support the rectangular section 1 of the coal hopper on the frame beam of the main plant. The rectangular section 1 of the coal hopper is also surrounded by a number of horizontal stiffening ribs 7 of the bucket wall, which are connected around the rectangular section 1 of the coal hopper, the square cone section 2 of the coal hopper and the square section 3 of the coal hopper, and are connected to the column supports 6 at both ends of the rectangular section 1 of the coal hopper. The circumferential restraint force of the coal hopper body is provided to ensure the strength and stability of the coal hopper body. The column supports 6 and the horizontal stiffening ribs 7 of the bucket wall are made of finished steel, and the structure is simple and reliable, which is convenient for personnel to process and for social workers.

[0035] like Figure 3 As shown, a cone bucket horizontal stiffening plate 10 is arranged below the cone bucket vertical stiffening plate 9 to provide a certain supporting force for the cone bucket vertical stiffening plate 9.

[0036] In summary, the utility model provides a new type of steel coal hopper with multiple bins that can be changed from square to round and supported by steel columns, which can realize multiple bins in parallel, one bin with multiple hopper openings, and an upper and lower round structure.

[0037] The coal hopper body includes a coal hopper rectangular section 1, a coal hopper square cone section, a coal hopper square-circular section, a coal hopper cone funnel section, and a compartment partition 5. A coal hopper support and restraint system is formed by column support 6, bucket wall horizontal stiffening ribs 7, partition wedge-shaped stiffening ribs 8, cone bucket vertical stiffening plates 9, and cone bucket horizontal stiffening plates 10.

[0038] The coal hopper rectangular section 1, the coal hopper square cone section, the coal hopper square-to-round section 3, and the coal hopper cone funnel section of the coal hopper body are assembled and welded using steel plates. Multiple compartments are separated by compartment partitions 5. One side of the column support 6 is connected to the coal hopper rectangular section 1, and the other side is supported on the concrete beam.

[0039] The horizontal stiffening ribs 7 of the bucket wall are connected around the coal bucket rectangular section 1, the coal bucket square cone section 2 and the coal bucket square round section 3, and are connected to the column support 6 at both ends of the coal bucket rectangular section 1, providing annular restraint force for the coal bucket body to ensure the strength and stability of the coal bucket body.

[0040] The wedge-shaped stiffening ribs 8 are connected to the partition plates on both sides to ensure the strength of the partition plates 5 when the storage materials are uneven and the lateral pressure is inconsistent in multiple warehouses. They bear the lateral load caused by the lateral pressure of the storage materials.

[0041] The combination of the cone bucket vertical stiffening plate 9 and the cone bucket horizontal stiffening plate 10 has greater rigidity, which can balance the vertical load and horizontal load on the cone bucket when supporting coal dropping, improve the structural strength between multiple bucket openings, and prevent the bucket opening from being deformed due to the impact when coal is dropped.

[0042] The utility model discloses a multi-bin square-to-round support steel coal hopper, which is composed of a multi-bin square-to-round coal hopper body, a coal hopper column support, and horizontal stiffening ribs on the outer wall of the coal hopper. The rectangular section of the coal hopper body is supported by welded steel columns on the concrete beams to achieve stable support for the coal hopper body. Different silos of the coal hopper are separated by silo partitions. Wedge-shaped steel is welded on both sides of the partition to ensure the rigidity of the central partition when the storage materials in multiple silos are unevenly distributed. At the same time, the wedge-shaped stiffening ribs can also achieve smooth coal dropping without coal accumulation. The horizontal stiffening ribs made of connecting steel around the outer wall panels of the multi-bin coal hopper body ensure the strength and rigidity of the coal hopper body. The horizontal stiffening plates combined with vertical stiffening plates are used at the intersection of the hopper mouths of multiple chambers to enhance the rigidity between the hopper mouths. The structure of the coal hopper of the utility model is square on the upper side and circular on the lower side, which can make full use of the space between coal bunkers and meet the requirements of process equipment layout. When in use, it realizes the combination of multiple bunkers and the layout of one hopper with multiple openings. The main body of the coal hopper is supported by multiple columns to ensure the overall structural load-bearing and stability of the coal hopper. The column support is made of steel and is easy to process. At the same time, the horizontal stiffening ribs of the hoop steel on the side wall of the coal hopper serve as horizontal constraints to ensure the strength and rigidity of the main body of the coal hopper. The structure of the utility model coal hopper can coordinate the layout of the coal hopper with the structure between coal bunkers, reduce the height of the coal hopper layer, significantly reduce the comprehensive cost of the main plant, and have good economic benefits.

[0043] Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed utility model subject matter.

[0044] The above content is a further detailed description of the utility model. It cannot be determined that the specific implementation methods of the utility model are limited to these. For ordinary technicians in the technical field to which the utility model belongs, they can make some simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as belonging to the protection scope of the utility model determined by the submitted claims.

Claims

1. A multi-bin square to round support steel coal hopper, characterized in that: It comprises a coal hopper rectangular section (1), a coal hopper square cone section, a coal hopper square-to-circular section and a coal hopper cone funnel section; A coal hopper square cone section is arranged below the coal hopper rectangular section (1), a coal hopper square-to-round section is arranged below the coal hopper square-to-round section, and a coal hopper cone funnel section is arranged below the coal hopper square-to-round section; The coal hopper square cone section comprises a first coal hopper square cone section (21), a second coal hopper square cone section (22) and a third coal hopper square cone section (23); the coal hopper square-to-round section comprises a first coal hopper square-to-round section (31), a second coal hopper square-to-round section (32) and a third coal hopper square-to-round section (33); the coal hopper cone funnel section comprises a first coal hopper cone funnel section (41), a second coal hopper cone funnel section (42) and a third coal hopper cone funnel section (43); The first coal hopper square cone section (21), the second coal hopper square cone section (22) and the third coal hopper square cone section (23) are connected to the coal hopper rectangular section (1); the first coal hopper square-to-circular section (31) is connected to the first coal hopper square cone section (21); the second coal hopper square-to-circular section (32) is connected to the second coal hopper square cone section (22); the third coal hopper square-to-circular section (33) is connected to the third coal hopper square cone section (23); the first coal hopper cone funnel section (41) is connected to the first coal hopper square-to-circular section (31); the second coal hopper cone funnel section (42) is connected to the second coal hopper square-to-circular section (32); the third coal hopper cone funnel section (43) is connected to the third coal hopper square-to-circular section (33); The coal hopper rectangular section (1) comprises a first coal hopper rectangular section (11) and a second coal hopper rectangular section (12); The first coal hopper square cone section (21) and the second coal hopper square cone section (22) are arranged below the first coal hopper rectangular section (11); A third coal hopper square cone section (23) is provided below the second coal hopper rectangular section (12); A compartment partition plate (5) is provided between the first coal hopper rectangular section (11) and the second coal hopper rectangular section (12).

2. The multi-bin square to round support steel coal hopper according to claim 1 is characterized in that: The bin partition plate (5) extends to the connection between the second coal hopper square cone section (22) and the third coal hopper square cone section (23).

3. The multi-bin square to round support steel coal hopper according to claim 1 is characterized in that: A plurality of partition plate wedge-shaped stiffening ribs (8) are provided on the contact surfaces of the bin partition plate (5) and the coal hopper rectangular section (1), the second coal hopper square cone section (22) and the third coal hopper square cone section (23).

4. The multi-bin square to round support steel coal hopper according to claim 1 is characterized in that: A column support (6) is provided between the coal hopper rectangular section (1) and the main plant frame beam.

5. The multi-bin square to round support steel coal hopper according to claim 1 is characterized in that: The exterior of the coal hopper rectangular section (1), the coal hopper square cone section and the coal hopper square-to-round section is surrounded by a plurality of hopper wall horizontal stiffening ribs (7).

6. The multi-bin square-to-round support type steel coal hopper according to claim 5 is characterized in that: The material of the bucket wall horizontal stiffening ribs (7) is steel.

7. The multi-bin square to round support steel coal hopper according to claim 1 is characterized in that: A cone bucket vertical stiffening plate (9) is provided on the outer side of the connection between the first coal bucket square cone section (21) and the second coal bucket square cone section (22).

8. The multi-bin square-to-round support type steel coal hopper according to claim 7 is characterized in that: A cone bucket horizontal stiffening plate (10) is provided below the cone bucket vertical stiffening plate (9).

9. The multi-bin square to round support steel coal hopper according to claim 1 is characterized in that: The coal hopper rectangular section (1), the coal hopper square cone section, the coal hopper square-circular section and the coal hopper cone funnel section are welded.

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