Cluster type steel coal storage hopper

Abstract

The invention relates to a cluster type steel coal storage hopper, and belongs to the technical field of coal loading. The hopper comprises a plurality of coal storage hopper bodies arranged among frame columns, the coal storage hopper bodies are fixed through clustered stiffening ribs, the coal storage hopper bodies are fixed on the frame columns through coal storage hopper supports arranged on the sides and support beams arranged below the coal storage hopper supports, each coal storage hopper body comprises a straight barrel section and a conical hopper section which are connected up and down, stiffening ribs are arranged outside transition parts of the straight barrel section and the conical hopper section, a steel top plate is arranged at the top end of the straight barrel section, and a coal falling hole and a dust removal hole are formed in the steel top plate. According to the hopper, a shake-stopping support does not need to be arranged, the occupied space of the coal storage hopper is small, and the tying effect between the coal storage hopper and a building structure is reduced; and through the mutual supporting effect among the coal storage hopper bodies, the overall rigidity of a coal storage bucket group is improved, the anti-overturning capacity and the earthquake resistance of the coal storage hopper bodies under the action of horizontal force are improved, the influence on the rigidity of the frame columns is avoided, and structural internal force analysis is more concise.

Description

technical field [0001] The invention relates to a cluster type steel coal storage hopper, which belongs to the technical field of coal loading. Background technique [0002] In coal-fired power plants, in order to ensure the amount of coal stored, the original coal storage bins between coal bunkers are often huge in size. A conventional 300MW class coal-fired unit needs 10 coal storage hoppers, and the coal storage capacity of a single coal storage hopper is about 260t; a 600MW class coal-fired unit needs 12 coal storage hoppers, and a single coal storage hopper has a coal storage capacity of about 410t; 12 coal storage hoppers are required, and the coal storage capacity of a single coal storage hopper is about 620t. Due to the limited area between coal bunkers, the plane size of the coal storage hopper is about 6m-8m, and the total height is 12m-30m, resulting in most coal storage hoppers being thin and tall. [0003] Another feature of coal storage hoppers in coal bunker...

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Problems solved by technology

[0004] The independent coal storage hopper is a common form in coal-fired power plants. Since the anti-sway support needs to be tied to the surrounding frame columns or beams, a special space for the anti-sway support needs to be reserved, and the building plane size between the coal bunkers is relatively large; and due to the The coal bucket is tied to the frame column. Under the action of an earthquake, the seismic force of the coal storage bucket will be transmitted to the weakest point in the middle of the frame column. Therefore, it is not conducive to the overall safety of the coal bunker structure.

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