CN2228184Y

CN2228184Y - Oblique thrust coal-loosing device

Info

Publication number: CN2228184Y
Application number: CN94227485U
Authority: CN
Inventors: 包云南
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-19
Filing date: 1994-04-19
Publication date: 1996-05-29
Anticipated expiration: 2004-04-19

Abstract

The utility model relates to an oblique thrust coal-loosing device, which belongs to the field of mechanism. In the utility model, an oblique thrusting force arm assembling box body is connected with a crank distance rod through connecting with a fixed link, and then is fixed on a front arch position with the distance between 700 mm and 759 mm away from a boiler valve board of a boiler through connecting with one end of the crank distance rod. During use, the device can automatically loosen the coal seams on a fire grate, so that coals can obtain complete and even combustion. The utility model not only can increase boiler output, reduce consumption and saves energy, but also can lighten the labor intensity of firemen and improve environmental pollution in the meanwhile.

Description

A kind of oblique thrust coal-loosing device

The utility model belongs to mechanical field, is mainly used in the oblique thrust coal-loosing device of Industrial Boiler.

The moving velocity of rotation that promotes stove flashboard height and fire grate of original structure armrest decides; this coal-burning boiler existing problems: the coal on the fire grate pushes through flashboard; enter the coal seam that the thickness particle of burner hearth, coal mixes and pushed; make that the coal seam is solid, fire grate bottom wind-force wears coal seam thoroughly because of being subjected to resistance; make the low layer burning lack oxygen; the burning difficulty; fire box temperature does not increase; the stoker have to disclose coal-fired layer with big iron staff; often form burner; stoker's labour intensity is big, environmental pollution is serious, influences boiler output, makes the boiler slag carbon content height, the thermal efficiency is low, waste of fuel is big.

The purpose of this utility model is the developing industry steam coal, is means with the mechanical technique, provides a kind of boiler combustion that adapts to different coal-fired layers, the significant oblique thrust coal-loosing device of effect of coal saving.

This device dries by the fire position, cant arm of force combination box (1), the bar that is connected and fixed (2), crank distance rod (3), expansion bearing bar (4), circulating cooling water pipe (5) before by boiler and forms.Expansion bearing bar (4) one ends are fixed on position, boiler arch, and the expansion bearing bar (4) of the other end links with crank distance rod (3) other end.

This apparatus structure is reasonable, expansion bearing bar (3) is a rigid attachment with crank distance rod (4).Cant arm of force combination box (1), crank distance rod (3) connect for the garden cylinder with the bar that is connected and fixed (2).The be connected and fixed circulating cooling water pipe (5) of bar (2), crank distance rod (3), expansion bearing bar (4), Dg20 of the cant arm of force combination box (1) that adopts boiler plate materials A 3g to form by this device shown in Fig. 1,2 is installed on baking position before the boiler, from the position of stove flashboard lock apart from 700mm-750mm.After entering this device, coal-fired layer is subjected to oblique thrust angle (30 °-40 °) to move loose coal seam with combination box (1), by low upwards climb to certain altitude (70mm-100mm) freely be scattered, fire coal fall on the horizontal fire grate coal seam loose, accelerate to catch fire by face arch Fire Radiation temperature.Fire grate continues to rotate forward, and coal-fired layer enters eight furnace combustion zone territories, and coal-fired layer can be fully burned, and the low layer oxidized is burnt.

This device is fast ignition time, burner hearth combustion intensity height, and aerogenesis and effect of coal saving are remarkable, and boiler output improves 12-20%.Alleviate stoker's labour intensity greatly, improve environmental pollution.

Fig. 1, boiler face arch are always schemed.

Fig. 2, oblique thrust coal-loosing device.

Fig. 3, oblique thrust profile.

According to this apparatus structure and operation principle, press Fig. 1,2 job step, because boiler face arch position fire grate is made positive veer, after the new coal-fired layer on the coal bunker advanced eight these devices, the coal seam was subjected to cant arm of force combination box (1) and oblique thrust angle to move loose coal seam for 30 °-40 °.Its structure is by cant arm of force combination box (1), and the bar that is connected and fixed (2), crank distance rod (3), expansion bearing bar (4), Dg20 circulating cooling water pipe parts such as (5) make up.Finished loose coal seam job step.

Claims

1. an oblique thrust coal-loosing device is made up of boiler face arch position, cant arm of force combination box (1), the bar that is connected and fixed (2), crank distance rod (3), expansion bearing bar (4), circulating cooling water pipe (5), it is characterized in that expansion bearing bar (4) one ends are fixed in boiler face arch position, other end expansion bearing bar (4) links with crank distance rod (3) other end.

2. according to the described oblique thrust coal-loosing device of claim 1, it is characterized in that expansion bearing bar (3) and crank distance rod (4) are rigid attachment.Cant arm of force combination box (1), crank distance rod (3) connect for the garden cylinder with the bar that is connected and fixed (2).

3. it is characterized in that according to claim 1,2 described oblique thrust coal-loosing devices cant arm of force combination box (1) distance between the stove flashboard is 700mm-750mm, 30 °-40 ° of oblique thrust angles, tank material is boiler steel A3g.