CN210197275U

CN210197275U - Efficient environment-friendly energy-saving coal-fired boiler

Info

Publication number: CN210197275U
Application number: CN201920628239.1U
Authority: CN
Inventors: Hengxiang Xia; 夏恒祥; Shiping Guo; 郭世平; Hongbao Jiang; 姜洪宝; Zhiru Qiu; 邱志如; Yilin Liu; 刘易林
Original assignee: Jiangsu World Expo Design Research Institute Co ltd
Current assignee: Jiangsu World Expo Design Research Institute Co ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-03-27
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses a high-efficiency environment-friendly energy-saving coal-fired boiler, which comprises a blast pipe, an ash tray, a boiler body, an ash falling inclined pipe, a support frame, a coal gas outlet header pipe, a combustion fan and a burner, wherein the boiler body is fixedly arranged on the support frame, the ash tray is arranged at the lower side of the boiler body, the blast pipe is embedded at the bottom wall of the boiler body, a grate is arranged at the upper side of the blast pipe, an operation platform is fixedly connected at the upper side of the boiler body, a steam pocket is fixed at the upper side screw of the operation platform, a double-bell-cover coal feeding box is embedded at the middle part of the operation platform, a valve is arranged on a gas pipe of the steam pocket, and a coal feeding ladder stand is arranged at one side of the boiler body. Further cleaning the fuel gas and simultaneously ensuring the safety of the coal-fired boiler.

Description

Efficient environment-friendly energy-saving coal-fired boiler

Technical Field

The utility model relates to a coal-fired boiler, in particular to high-efficient environmental protection and energy saving coal fired boiler belongs to coal fired boiler technical field.

Background

The boiler is an important energy conversion device and is also an energy consumer and an important atmospheric pollution source. The boiler in China is mainly fired coal, wherein the boiler in a coal-fired power plant is rapidly developed towards the direction of high capacity and high parameter in recent years, and the production, manufacture and operation management of the boiler are close to the foreign advanced level; the coal-fired industrial boiler has the advantages of large reserve, wide distribution, high energy consumption, heavy pollution, certain difference between the overall energy efficiency and pollution control level and the overseas level, huge energy-saving and emission-reduction potential, most coal-fired industrial boilers are not provided with effective dust removal devices, the pollution sources are too dispersed, the environment supervision difficulty is large, the illegal environment phenomena such as steal and emission are prominent, the reconstruction difficulty of a coal-fired industrial boiler room is high again, many central enterprises are located in the countryside, a natural gas pipe network is not covered, and if an electric boiler is adopted, the electric capacity increasing cost is considerable.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a high-efficient environmental protection and energy saving coal fired boiler.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a high-efficiency, environment-friendly and energy-saving coal-fired boiler, which comprises a blast pipe, an ash tray, a boiler body, an ash falling inclined pipe, a support frame, a gas outlet main pipe, a combustion fan and a burner, wherein the boiler body is fixedly arranged on the support frame, the ash tray is arranged at the lower side of the boiler body, the blast pipe is embedded at the bottom wall of the boiler body, a grate is arranged at the upper side of the blast pipe, an operation platform is fixedly connected at the upper side of the boiler body, a steam pocket is fixed at the upper side screw of the operation platform, a double-bell-cover coal feeding box is embedded at the middle part of the operation platform, a valve is arranged at the gas pipe of the steam pocket, a coal feeding ladder is arranged at one side of the boiler body, a cyclone dust collector is arranged at the other side of the boiler body, the ash falling inclined pipe is connected between the input end of the cyclone dust collector, the lower end of one of the coal gas branch pipes extends into the water seal box, one side of the water seal box is provided with a combustion-supporting fan, a combustion-supporting air pipe is fixedly connected between the water seal box and the output end of the combustion-supporting fan, the middle of the combustion-supporting air pipe is provided with a burner, and the combustion-supporting air pipe is provided with a coal gas regulating valve, an air regulating valve and an air valve.

As an optimized technical proposal of the utility model, the blast pipe is funnel-shaped, and the grate is installed at the large diameter end of the blast pipe.

As a preferred technical scheme of the utility model, the gas-supply pipe fixed connection of steam pocket is at the top of furnace body, it is adjacent with two bell jar coaling casees to go up the coal cat ladder.

As an optimal technical scheme of the utility model, the input and the output of the ash pipe chute that falls are connected with cyclone and furnace body respectively, the lower extreme of the ash pipe chute that falls is equipped with the ash hole.

As an optimal technical scheme of the utility model, the lower port of coal gas by-pass pipe is located below the liquid level in the water seal box, combustion-supporting tuber pipe fixed connection is at the upside of water seal box.

As an optimal technical scheme of the utility model, combustion-supporting tuber pipe is "L" shape structure, the coal gas governing valve is located between nozzle and the water-sealed tank, air adjusting valve and air valve are located between nozzle and the combustion-supporting fan.

The utility model discloses the beneficial effect who reaches is: the utility model relates to a high-efficient environmental protection and energy saving coal fired boiler, have the high excellent characteristics of compact structure and security, when specifically using, the burning produces combustible gas in the furnace body, the air is blown in from the grate below, pass grate and coal-fired heap, make fire coal and oxygen effect, ensure fire coal complete combustion, combustible gas lets in the water seal box after twice removing dust in, the gas has further been cleaned, coal fired boiler's safety also can be ensured simultaneously, combustible gas and combustion-supporting air assemble the burning at the nozzle afterwards, the proportion of steerable combustible substance of air regulating valve and coal gas governing valve and oxygen, and then control flame size.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an assembly schematic of the present invention.

In the figure: 1. a blast pipe; 2. an ash tray; 3. a grate; 4. a furnace body; 5. a steam drum; 6. climbing a ladder; 7. a double bell jar coal charging box; 8. a valve; 9. an operating platform; 10. a ash falling inclined pipe; 11. a support frame; 12. a cyclone dust collector; 13. a gas outlet main pipe; 14. a gas branch pipe; 15. water sealing the tank; 16. a gas regulating valve; 17. an air regulating valve; 18. a combustion-supporting air duct; 19. an air valve; 20. a combustion fan; 21. and (4) burning the burner.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in figure 1, the high-efficiency environment-friendly energy-saving coal-fired boiler comprises a blast pipe 1, an ash tray 2, a boiler body 4, an ash falling inclined pipe 10, a support frame 11, a coal gas outlet header pipe 13, a combustion fan 20 and a burner 21, wherein the boiler body 4 is fixedly arranged on the support frame 11, the ash tray 2 is arranged on the lower side of the boiler body 4, the blast pipe 1 is embedded in the bottom wall of the boiler body 4, a grate 3 is arranged on the upper side of the blast pipe 1, an operation platform 9 is fixedly connected on the upper side of the boiler body 4, a steam pocket 5 is fixed on the upper side of the operation platform 9 through screws, a double-bell-jar coal feeding box 7 is embedded in the middle of the operation platform 9, a valve 8 is arranged on a gas pipe of the steam pocket 5, a coal climbing ladder 6 is arranged on one side of the boiler body 4, a cyclone dust collector 12 is arranged on the other side of the boiler body 4, the outer wall of the gas outlet main pipe 13 is fixedly connected with a plurality of gas branch pipes 14, the lower end of one of the gas branch pipes 14 extends into the water seal box 15, one side of the water seal box 15 is provided with a combustion-supporting fan 20, a combustion-supporting air pipe 18 is fixedly connected between the output ends of the water seal box 15 and the combustion-supporting fan 20, the middle part of the combustion-supporting air pipe 18 is provided with a burner 21, and the combustion-supporting air pipe 18 is provided with a gas regulating valve 16, an air regulating valve 17 and an air valve 19.

Wherein, blast pipe 1 is hopper-shaped, and grate 3 is installed to blast pipe 1 wide-diameter end, can be convenient for the deashing.

Wherein, the gas-supply pipe fixed connection of steam pocket 5 is at the top of furnace body 4, and it is adjacent with two bell jar coal charging boxes 7 that the cat ladder 6 goes up the coal, conveniently feeds in raw material and dehumidifies.

Wherein, the input end and the output end of the ash falling inclined tube 10 are respectively connected with the cyclone dust collector 12 and the furnace body 4, and the lower end of the ash falling inclined tube 10 is provided with an ash outlet for primary dust collection and pressure reduction of the cyclone dust collector 12.

Wherein, the lower port of the gas branch pipe 14 is positioned below the liquid level in the water seal tank 15, the combustion-supporting air pipe 18 is fixedly connected with the upper side of the water seal tank 15, and the arrangement of the water seal tank 15 further cleans the gas and simultaneously ensures the safety of the coal-fired boiler.

The combustion-supporting air pipe 18 is of an L-shaped structure, the gas regulating valve 16 is located between the burner 21 and the water seal box 15, the air regulating valve 17 and the air valve 19 are located between the burner 21 and the combustion-supporting fan 20, carbon monoxide and combustion-supporting air are converged at the burner 21, the carbon monoxide at the burner 21 is ignited, and the air regulating valve 17 and the gas regulating valve 16 can control the proportion of combustible materials and oxygen, so that the flame size is controlled.

Specifically, when the utility model is used, the fire coal is required to be put into the furnace body 4 from the double bell-jar coal feeding box 7, the fire coal is received by the grate 3, then the fire coal is ignited, the blast pipe 1 is connected with the blast device, the air enters the furnace body 4 from the blast pipe 1, is blown in from the lower part of the grate 3, passes through the grate 3 and the coal pile, so that the fire coal and the oxygen act to ensure the complete combustion of the fire coal, the air inlet amount is controlled, a large amount of carbon monoxide can be generated in the furnace body 4, the steam pocket 5 is used for removing the water vapor in the furnace, the internal pressure of the furnace body 4 is increased continuously, the carbon monoxide enters the cyclone dust collector 12 from the ash falling inclined pipe 10, and is led into the water seal box 15 after twice dust removal, the water seal box 15 is arranged, the gas is further cleaned, meanwhile, the safety of the fire coal boiler can be ensured, the combustion fan 20 blows in the combustion air pipe 18, the other end of the combustion air pipe, carbon monoxide and combustion air are converged at the burner 21, the carbon monoxide at the burner 21 is ignited, and the air regulating valve 17 and the coal gas regulating valve 16 can control the proportion of combustible materials and oxygen, so that the size of flame is controlled.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency, environment-friendly and energy-saving coal-fired boiler comprises a blast pipe (1), an ash tray (2), a boiler body (4), an ash falling inclined pipe (10), a support frame (11), a coal gas outlet header pipe (13), a combustion fan (20) and a burner (21), and is characterized in that the boiler body (4) is fixedly installed on the support frame (11), the ash tray (2) is arranged on the lower side of the boiler body (4), the blast pipe (1) is embedded in the bottom wall of the boiler body (4), a grate (3) is installed on the upper side of the blast pipe (1), an operation platform (9) is fixedly connected to the upper side of the boiler body (4), a steam pocket (5) is fixed to the upper side screw of the operation platform (9), a double-bell-cover coal feeding box (7) is embedded in the middle of the operation platform (9), a valve (8) is installed on the gas pipe of the steam pocket (5), an upper coal climbing ladder (6) is arranged, the boiler is characterized in that a cyclone dust collector (12) is arranged on the other side of the boiler body (4), a dust falling inclined pipe (10) is connected between the input end of the cyclone dust collector (12) and the output end of the boiler body (4), the output end of the cyclone dust collector (12) is fixedly connected with, a plurality of coal gas branch pipes (14) are fixedly connected to the outer wall of a coal gas outlet header pipe (13), the lower end of one of the coal gas branch pipes (14) extends into a water seal box (15), a combustion-supporting fan (20) is arranged on one side of the water seal box (15), a combustion-supporting air pipe (18) is fixedly connected between the water seal box (15) and the output end of the combustion-supporting fan (20), a burner (21) is arranged in the middle of the combustion-supporting air pipe (18), and a coal gas regulating valve (16), an air regulating valve (17) and an air.

2. An efficient environment-friendly energy-saving coal-fired boiler according to claim 1, characterized in that the blast pipe (1) is funnel-shaped, and the grate (3) is installed at the large-diameter end of the blast pipe (1).

3. The efficient environment-friendly energy-saving coal-fired boiler according to claim 1, characterized in that the gas pipe of the steam drum (5) is fixedly connected to the top of the boiler body (4), and the coal climbing ladder (6) is adjacent to the double bell-jar coal feeding box (7).

4. The high-efficiency environment-friendly energy-saving coal-fired boiler according to claim 1, characterized in that the input end and the output end of the ash falling inclined pipe (10) are respectively connected with the cyclone dust collector (12) and the boiler body (4), and the lower end of the ash falling inclined pipe (10) is provided with an ash outlet.

5. A high-efficiency environment-friendly energy-saving coal-fired boiler according to claim 1, characterized in that the lower port of the gas branch pipe (14) is positioned below the liquid level in the water seal tank (15), and the combustion-supporting air pipe (18) is fixedly connected to the upper side of the water seal tank (15).

6. A high-efficiency environment-friendly energy-saving coal-fired boiler as claimed in claim 1, characterized in that the combustion-supporting air pipe (18) is in an L-shaped structure, the gas regulating valve (16) is positioned between the burner (21) and the water seal tank (15), and the air regulating valve (17) and the air valve (19) are positioned between the burner (21) and the combustion-supporting fan (20).