CN220152775U

CN220152775U - Coal-fired boiler

Info

Publication number: CN220152775U
Application number: CN202321171577.XU
Authority: CN
Inventors: 孙建光; 孙建辉; 孙晓艳; 孔永利
Original assignee: MENGZHOU GOLDEN CORN CO Ltd
Current assignee: MENGZHOU GOLDEN CORN CO Ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-12-08
Anticipated expiration: 2033-05-15

Abstract

The utility model relates to a coal-fired boiler in the technical field of combustion boilers, which comprises a boiler body, wherein a coal inlet and a smoke exhaust pipe are arranged on the boiler body, a coal inlet pipe is connected to the coal inlet, a feeding component and a blowing component which are mutually matched are connected to the coal inlet, the blowing component comprises a blower, an air outlet of the blower is connected with one end of the coal inlet pipe, an air inlet of the blower is connected with an air inlet pipe, an air inlet end of the air inlet pipe is connected with a first serpentine coil pipe, and the first serpentine coil pipe is wound on the smoke exhaust pipe. According to the utility model, the feeding component and the blowing component which are matched with each other are arranged, so that the labor cost is reduced, the safety coefficient is improved, the fire coal and air entering the furnace body can be preheated, the fire coal is combusted more fully, and the combustion effect is improved.

Description

Coal-fired boiler

Technical Field

The utility model belongs to the technical field of combustion boilers, and particularly relates to a coal-fired boiler.

Background

Boilers in the corn starch production process typically select coal as the fuel, i.e., coal-fired boilers. In the use process of the coal-fired boiler, the coal feeding mode is mainly that a worker uses a spade to spade the coal into a combustion chamber from a coal inlet, the mode is time-consuming and labor-consuming, the labor intensity of the worker is high, cold air can be brought into the combustion chamber in the coal feeding process, the combustion effect of the coal is affected, and the safety coefficient is low. Accordingly, there is a need for a coal-fired boiler that solves the above-described problems.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a coal-fired boiler, which comprises a boiler body, wherein a coal inlet and a smoke exhaust pipe are arranged on the boiler body, a coal inlet pipe is connected to the coal inlet, a feeding component and a blowing component which are mutually matched are connected to the coal inlet pipe, the blowing component comprises a blower, an air outlet of the blower is connected with one end of the coal inlet pipe, an air inlet of the blower is connected with an air inlet pipe, an air inlet end of the air inlet pipe is connected with a first serpentine coil pipe, and the first serpentine coil pipe is wound on the smoke exhaust pipe. According to the utility model, the coal enters the coal inlet pipe through the feeding component, the coal is blown into the furnace body under the blowing force of the blower, the first serpentine coil pipe is wound on the smoke exhaust pipe, when the blower works, air is blown into the coal inlet pipe after passing through the first serpentine coil pipe and the air inlet pipe in sequence, the air is heated in the first serpentine coil pipe, the air blown into the furnace body is ensured to be hot air, the entry of cold air is reduced, and the influence on the combustion effect is reduced.

Preferably, the feeding assembly comprises a feeding cylinder, the lower end of the feeding cylinder is communicated with the coal feeding pipe, and the upper end of the feeding cylinder is fixedly connected with a feeding hopper. The coal firstly enters the feed hopper and enters the coal inlet pipe through the feed cylinder, so that the coal inlet of the furnace body can be burnt in a non-straight surface manner, and the operation safety of workers is improved.

Preferably, the feeding assembly further comprises a screw feeder, the screw feeder comprises a driving motor and a feeding paddle, the driving motor is fixed above the feeding hopper through a bracket, the driving motor is connected with the feeding paddle, and the lower end of the feeding paddle stretches into the feeding barrel. The feeding paddle can prevent the feeding cylinder from being blocked and crush the fire coal, so that the uniformity of the fire coal is improved and the combustion effect of the fire coal is improved.

Preferably, the feeding hopper is matched with a feeding conveyer belt, and the discharging end of the feeding conveyer belt is matched with the feeding inlet of the feeding hopper. Reduces the labor intensity of workers and improves the safety.

Preferably, a second serpentine coil is wound outside the feeding cylinder, the air inlet end of the second serpentine coil is communicated with the side wall of the smoke exhaust pipe through an air duct, and the air outlet end of the second serpentine coil is connected with the dust remover. The serpentine coil pipe is led into high-temperature flue gas in the smoke exhaust pipe to preheat the fire coal in the feeding cylinder, so that the combustion efficiency is further improved.

The utility model also comprises other components which can ensure that the coal-fired boiler can be normally used, such as a control component of a driving motor, a control component of a blower, a control component of a feeding conveyor belt, a control component of a dust remover and the like, which are all conventional technical means in the field. In addition, the devices or components not defined in the present utility model are all conventional in the art, such as feeding conveyor belts, dust collectors, screw feeders, blowers, etc., and are all conventional in the art.

The utility model has the beneficial effects that by arranging the feeding component and the blowing component which are matched with each other, the labor cost is reduced, the safety coefficient is improved, the fire coal and air entering the furnace body can be preheated, the fire coal is combusted more fully, and the combustion effect is improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of a coal-fired boiler according to embodiment 1 of the present utility model;

FIG. 2 is a schematic view of a coal-fired boiler according to embodiment 2 of the present utility model;

fig. 3 is a schematic view of the feed assembly of fig. 2.

In the figure: 1. a furnace body; 2. a coal inlet pipe; 3. a blower; 4. an air inlet pipe; 5. a feed cylinder; 6. a feed hopper; 7. a feeding conveyor belt; 8. a first serpentine coil; 9. a smoke exhaust pipe; 10. a second serpentine coil; 11. an air duct; 12. a driving motor; 13. and a material feeding paddle.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.

Example 1

As shown in fig. 1, the utility model provides a coal-fired boiler, which comprises a boiler body 1, wherein a coal inlet and a smoke exhaust pipe 9 are arranged on the boiler body 1, a coal inlet pipe 2 is connected to the coal inlet, a feeding component and a blowing component which are mutually matched are connected to the coal inlet pipe 2, the blowing component comprises a blower 3, an air outlet of the blower 3 is connected with one end of the coal inlet pipe 2, an air inlet of the blower 3 is connected with an air inlet pipe 4, an air inlet end of the air inlet pipe 4 is connected with a first serpentine coil pipe 8, and the first serpentine coil pipe 8 is wound on the smoke exhaust pipe 9. According to the utility model, coal enters the coal inlet pipe 2 through the feeding component, is blown into the furnace body 1 under the blowing force of the blower 3, the first serpentine coil pipe 8 is wound on the smoke exhaust pipe 9, and when the blower 3 works, air is blown into the coal inlet pipe 2 after sequentially passing through the first serpentine coil pipe 8 and the air inlet pipe 4, and the air is heated in the first serpentine coil pipe 8, so that the air blown into the furnace body 1 is ensured to be hot air, the entry of cold air is reduced, and the influence on the combustion effect is reduced.

The feeding assembly comprises a feeding barrel 5, the lower end of the feeding barrel 5 is communicated with the coal feeding pipe 2, and the upper end of the feeding barrel 5 is fixedly connected with a feed hopper 6. The coal enters the feed hopper 6 firstly and enters the coal inlet pipe 2 through the feed cylinder 5, so that the coal inlet of the furnace body can be burnt without being straight, and the safety of the operation of workers is improved.

The feeding hopper 6 is matched with a feeding conveyer belt 7, and the discharging end of the feeding conveyer belt 7 is matched with the feeding inlet of the feeding hopper 6. Reduces the labor intensity of workers and improves the safety.

Working principle: the fire coal enters the feeding hopper through the feeding conveyer belt, then enters the coal inlet pipe 2 through the feeding barrel 5, and under the action of the air blower, air is blown into the coal inlet pipe 2 after sequentially passing through the first serpentine coil pipe 8 and the air inlet pipe 4, so that the fire coal is blown into the furnace body, and the air is heated in the first serpentine coil pipe 8, so that the air blown into the furnace body 1 is ensured to be hot air, the entering of cold air is reduced, and the influence on the combustion effect is reduced.

Example 2

As shown in fig. 2-3, the utility model provides a coal-fired boiler, which comprises a boiler body 1, wherein a coal inlet and a smoke exhaust pipe 9 are arranged on the boiler body 1, a coal inlet pipe 2 is connected to the coal inlet, a feeding component and a blowing component which are mutually matched are connected to the coal inlet pipe 2, the blowing component comprises a blower 3, an air outlet of the blower 3 is connected with one end of the coal inlet pipe 2, an air inlet of the blower 3 is connected with an air inlet pipe 4, an air inlet end of the air inlet pipe 4 is connected with a first serpentine coil pipe 8, and the first serpentine coil pipe 8 is wound on the smoke exhaust pipe 9. According to the utility model, coal enters the coal inlet pipe 2 through the feeding component, is blown into the furnace body 1 under the blowing force of the blower 3, the first serpentine coil pipe 8 is wound on the smoke exhaust pipe 9, and when the blower 3 works, air is blown into the coal inlet pipe 2 after sequentially passing through the first serpentine coil pipe 8 and the air inlet pipe 4, and the air is heated in the first serpentine coil pipe 8, so that the air blown into the furnace body 1 is ensured to be hot air, the entry of cold air is reduced, and the influence on the combustion effect is reduced.

The feeding assembly further comprises a screw feeder, the screw feeder comprises a driving motor 12 and a feeding paddle 13, the driving motor 12 is fixed above the feeding hopper 6 through a bracket, the driving motor 12 is connected with the feeding paddle 13, and the lower end of the feeding paddle 13 stretches into the feeding barrel 5. The feeding paddle 13 can prevent the feeding cylinder 5 from being blocked, crush the fire coal, improve the uniformity of the fire coal and improve the combustion effect of the fire coal.

The feeding cylinder 5 is externally wound with a second serpentine coil pipe 10, the air inlet end of the second serpentine coil pipe 10 is communicated with the side wall of the smoke exhaust pipe 9 through an air guide pipe 11, and the air outlet end of the second serpentine coil pipe 10 is connected with a dust remover. The second serpentine coil pipe 10 is introduced into the high-temperature flue gas in the smoke exhaust pipe 9 to preheat the fire coal in the feeding cylinder 5, so that the combustion efficiency is further improved.

Working principle: the coal enters the feed hopper through the feeding conveyor belt, then enters the coal inlet pipe 2 through the feeding cylinder 5, the feeding cylinder smoothly conveys the entered coal into the coal inlet pipe under the action of the screw feeder, meanwhile, the coal can be crushed, the crushing degree and uniformity of the coal are improved, the coal can be preheated in the feeding cylinder under the action of the second serpentine coil pipe, the temperature is improved, then under the action of the blower, air is blown into the coal inlet pipe 2 after sequentially passing through the first serpentine coil pipe 8 and the air inlet pipe 4, and the preheated coal is blown into the furnace body.

The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a coal-fired boiler, includes the furnace body, be equipped with into coal mouth and exhaust pipe on the furnace body, its characterized in that: the coal inlet is connected with a coal inlet pipe, the coal inlet pipe is connected with a feeding component and a blowing component which are matched with each other, the blowing component comprises a blower, an air outlet of the blower is connected with one end of the coal inlet pipe, an air inlet of the blower is connected with an air inlet pipe, an air inlet end of the air inlet pipe is connected with a first serpentine coil pipe, and the first serpentine coil pipe is wound on a smoke exhaust pipe.

2. A coal fired boiler as claimed in claim 1, wherein: the feeding assembly comprises a feeding cylinder, the lower end of the feeding cylinder is communicated with the coal feeding pipe, and the upper end of the feeding cylinder is fixedly connected with a feeding hopper.

3. A coal fired boiler as claimed in claim 2, wherein: the feeding assembly further comprises a screw feeder, the screw feeder comprises a driving motor and a feeding paddle, the driving motor is fixed above the feeding hopper through a support, the driving motor is connected with the feeding paddle, and the lower end of the feeding paddle stretches into the feeding barrel.

4. A coal fired boiler as claimed in claim 2, wherein: the feeder hopper is matched with a feeding conveyer belt, and the discharge end of the feeding conveyer belt is matched with the feed inlet of the feeder hopper.

5. A coal fired boiler as claimed in claim 2, wherein: the feeding cylinder is externally wound with a second serpentine coil, the air inlet end of the second serpentine coil is communicated with the side wall of the smoke exhaust pipe through an air duct, and the air outlet end of the second serpentine coil is connected with the dust remover.