CN202101255U - Grate steel frame of chain boiler - Google Patents

Abstract

The utility model discloses a fire grate steel frame of a chain boiler, which relates to the technical field of boiler support. The steel frame has a mopping floor on which a bracket, wind plate and grate side plate are installed, and an air duct cover plate is fixed on the upper surface of the bracket; the bracket includes a column and a beam, and one end of the beam is connected to the column , the other end is connected with the grate side plate; the air duct cover plate is fixed on the upper end surface of the beam and one end is connected with the upper end of the fire grate side plate, and a sealing block is installed on the upper end surface of the air duct cover plate. The advantages are: high strength and convenient manufacture; the column and the side plate of the fire grate form a whole, which increases the rigidity of the whole fire grate, improves the sealing performance of the air duct, and solves the problems of steel frame deformation and air leakage from the air duct.

Description

Steel grate frame of a chain boiler

technical field

The utility model relates to the technical field of boiler support, in particular to a grate steel frame of a chain boiler.

Background technique

In the process of boiler manufacturing and operation, the grate steel frame is the main supporting part of the boiler and plays an important role. At present, the steel frame structure used in the industry is shown in Figure 1. There is no beam connection between the column and the side plate of the grate, and only the air duct cover plate is used as a transition. After the chain grate is manufactured, during the hoisting process, due to the force of the horizontal direction component of the lifting force, the column will tilt inward, which will cause the steel frame to be deformed by force, and thus cause the grate pin to bend and cause the grate The distortion of the surface causes the fracture of the grate piece.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a grate steel frame for chain boilers. During the hoisting process, the columns will not incline to the inside, which solves the problems of deformation of the steel frame and air leakage from the air duct.

The utility model is realized by the following technical scheme: a grate steel frame of a chain boiler, including a mop floor, on which a support, an air plate and a side plate of the fire grate are installed, and an air duct is fixed on the upper surface of the support Cover plate; the bracket includes a column and a beam, one end of the beam is connected to the column, and the other end is connected to the side plate of the fire grate; the cover plate of the air duct is fixed on the upper surface of the beam and one end is connected to the side plate of the fire grate The upper end is connected, and a sealing block is installed on the upper end surface of the air duct cover plate.

The beneficial effects of the utility model are: high strength, convenient manufacture; the upright column and the side plate of the fire grate form a whole, which increases the rigidity of the whole fire grate, increases the sealing performance of the air duct, and solves the deformation of the steel frame and the wind The problem of air leakage.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of existing fire grate steel frame;

Fig. 2 is a structural schematic diagram of the utility model.

Among the figure: 1, support, 11, upright column, 12, beam, 2, air duct cover plate, 3, sealing block, 4, fire grate side plate, 5, reinforcing rib, 6, wind plate, 7, mopping floor.

Detailed ways

As shown in Figure 2, the grate steel frame of a chain boiler has a mop floor 7 on which a bracket 1, an air plate 6 and a grate side plate 4 are installed, and an air duct cover is fixed on the upper end of the bracket 1 plate 2. The support 1 includes a column 11 and a beam 12 , one end of the beam 12 is connected to the column 11 , and the other end is connected to the grate side plate 4 . The air channel cover plate 2 is fixed on the upper end surface of the beam 12 and one end is connected with the upper end of the grate side plate 4 , and a sealing block 3 is installed on the upper end surface of the air channel cover plate 2 . All joints are fixed by welding, which improves the sealing performance of the air duct. A reinforcing rib 5 is welded between the column 11 and the beam 12 .

Embodiment: With respect to Fig. 1, the column inside the support is removed, and the column on the outside is shortened, so that the distance between the upper end of the column and the mopping floor is 538mm. Extend the beam to make it contact with the outside of the side plate of the fire grate, and the joints are firmly welded. The 90° angle formed between the column and the beam is supported by a stiffener with a plate thickness of 10mm. The air duct cover plate is covered on the column plane according to the size of the drawing, and the surrounding is welded firmly to ensure sealing. The sealing block is installed on the air duct cover plate through bolts.

Claims (3)

1. the fire grate steelframe of a chain-grate boiler comprises that one mops the floor (7), and support (1), aerofoil (6) and fire grate side plate (4) are installed on mop the floor (7), is fixed with air channel cover plate (2) in the upper surface of support (1); It is characterized in that: described support (1) comprises a column (11) and crossbeam (12), and an end of crossbeam (12) is connected with column (11), and the other end is connected with fire grate side plate (4); A upper surface and an end that described air channel cover plate (2) is fixed on crossbeam (12) are connected with the upper end of fire grate side plate (4), and the upper surface of the cover plate in the air channel (2) is equipped with sealing block (3).

2. the fire grate steelframe of a kind of chain-grate boiler according to claim 1 is characterized in that: all junctions all adopt welding fixing.

3. the fire grate steelframe of a kind of chain-grate boiler according to claim 1 is characterized in that: between said column (11) and crossbeam (12), be welded with reinforcement (5).

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