CN209944362U

CN209944362U - Vertical water pipe waste heat boiler for burning flue gas of industrial three wastes

Info

Publication number: CN209944362U
Application number: CN201920791673.1U
Authority: CN
Inventors: 贾振凯; 刘苍; 郑爱侠; 叶娟
Original assignee: Shandong Huayuan Boiler Co Ltd
Current assignee: Shandong Huayuan Boiler Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-01-14
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a vertical water pipe exhaust-heat boiler of industry three wastes incineration flue gas, it belongs to the exhaust-heat boiler field, and it has solved and has lacked one kind and effectively avoid flue gas low temperature corrosion and smoke and dust to block up among the prior art, and the deashing is swift and realize the flue gas and take off the problem of exhaust-heat boiler who sells the processing. The furnace mainly comprises a furnace body, wherein a water cooling system, a steel frame, a furnace wall and an ash falling device are arranged on the furnace body, the water cooling system consists of a water cooling wall and a smoke barrier, the water cooling wall comprises a front water cooling wall, a left water cooling wall, a right water cooling wall and a rear water cooling wall, and the smoke barrier comprises a smoke barrier I and a smoke barrier II; the boiler is divided into a first channel, a second channel and a third channel by the water-cooled wall and the smoke barrier; refractory concrete is poured at the inlet end of the first channel; gaps between the water-cooled walls are hermetically welded through a sealing plate; the ash falling device comprises an ash falling smoke box and a star-shaped ash discharging valve; the water-cooled wall, the ash falling smoke box and the star ash discharge valve form a full-seal welding closed structure. The utility model discloses the waste heat utilization of flue gas is burnt to the mainly used three wastes.

Description

Vertical water pipe waste heat boiler for burning flue gas of industrial three wastes

Technical Field

The utility model relates to a waste heat boiler, specifically speaking especially relates to a vertical water pipe waste heat boiler of industry three wastes incineration flue gas.

Background

The problems of low-temperature corrosion and smoke blockage can be encountered in waste heat boilers matched with flue gas generated after three wastes of small and medium-sized industries are burnt. Horizontal water tube boilers are long in arrangement and large in occupied area, and fire tube boilers are difficult to overcome the problem of ash deposition and are not suitable for SNCR denitration treatment.

At present, an efficient industrial three-waste incineration flue gas vertical water pipe waste heat boiler which occupies a small area, is convenient to arrange, effectively avoids low-temperature corrosion of flue gas and blocking of smoke dust, can quickly remove ash and can realize flue gas denitration treatment is lacking.

Disclosure of Invention

The utility model aims at providing an industry three wastes burn vertical water pipe exhaust-heat boiler of flue gas to it is little to lack an area among the solution prior art, and the boiler arranges the convenience, effectively avoids flue gas low temperature corrosion and smoke and dust to block up, and the deashing is swift and realizes that the operation efficient industry three wastes that the flue gas sells the processing burn vertical water pipe exhaust-heat boiler's of flue gas problem.

The utility model discloses a realize through following technical scheme:

a vertical water pipe waste heat boiler for burning flue gas generated by industrial three wastes comprises a boiler body, wherein a water cooling system, a steel frame, a boiler wall and an ash falling device are arranged on the boiler body, the water cooling system consists of a water cooling wall and a smoke barrier, the water cooling wall comprises a front water cooling wall, a left water cooling wall, a right water cooling wall and a rear water cooling wall, and the smoke barrier comprises a smoke barrier I and a smoke barrier II; the boiler is divided into a first channel, a second channel and a third channel by the front side water cooling wall, the left and right side water cooling walls, the smoke barrier II, the smoke barrier I and the rear side water cooling wall; refractory concrete is poured at the inlet end of the first channel; gaps among the water-cooled walls are hermetically welded through a sealing plate; the ash falling device comprises an ash falling smoke box and a star-shaped ash discharging valve; the water-cooled wall, the ash falling smoke box and the star ash discharge valve form a full-seal welding closed structure.

Furthermore, the first channel is provided with an upper ash blowing port, a middle ash blowing port and a lower ash blowing port, and the second channel and the third channel are respectively provided with an upper ash blowing port and a lower ash blowing port.

Furthermore, a pin removal opening is formed in an ash blowing opening in the upper portion of the first channel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses compact structure, vertical arranging has saved area.

2. The boiler structure is convenient for deashing and denitration treatment, solves the problems of waste heat recovery and pollution of dust-containing corrosive flue gas generated after the incineration of three wastes in small and medium-sized industries, and generates good economic and social benefits.

3. The temperature of the whole heating surface of the water cooling system is 193 ℃, so that low-temperature corrosion of flue gas can be avoided.

4. The refractory concrete can effectively avoid the erosion of the flue gas to the water-cooled wall.

5. The communicating pipe is arranged between the left and right heating surfaces, which can ensure the water circulation of the modified heating surfaces to be even and safe.

6. The three-return-stroke flue is formed by the water-cooled wall, the complexity of arrangement of the heating surface at the tail part of the traditional coiled pipe is avoided, the outer wall of the flue is well cooled, the material consumption of the furnace wall is greatly saved, and the sealing performance of the flue is more reliable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a furnace body; 3. removing the pin port; 4. a steel frame; 5. a front water-cooled wall; 6. a smoke barrier II; 7. the left and right water-cooled walls; 8. a furnace wall; 9. refractory concrete; 10. ash falling smoke box; 11. a star-shaped ash discharge valve; 12. a sealing plate; 13. an ash blowing port; 14. a smoke barrier I; 15. a rear water-cooled wall; 16. a first channel; 17. a second channel; 18. a third channel.

Detailed Description

The invention will be further described and illustrated with reference to the accompanying drawings.

Embodiment 1, a vertical water pipe waste heat boiler of industrial three wastes incineration flue gas, including furnace body 1, furnace body 1 is equipped with water cooling system, steel frame 4, furnace wall 8 and ash falling device, the water cooling system is made up of water-cooled wall and smoke barrier, the water-cooled wall includes front side water-cooled wall 5, left and right sides water-cooled wall 7 and rear side water-cooled wall 15, the smoke barrier includes smoke barrier I14 and smoke barrier II 6; the boiler is divided into a first channel 16, a second channel 17 and a third channel 18 by the front side water-cooling wall 5, the left and right side water-cooling walls 7, the smoke barrier II 6, the smoke barrier I14 and the rear side water-cooling wall 15; the inlet end of the first channel 16 is poured with refractory concrete 9; the gap between the water-cooled walls is hermetically welded through a sealing plate 12; the ash falling device comprises an ash falling smoke box 10 and a star-shaped ash discharging valve 11; the water-cooled wall, the ash falling smoke box 10 and the star-shaped ash discharge valve 11 form a full-seal-welding closed structure.

Embodiment 2, a vertical water tube waste heat boiler for burning flue gas of industrial three wastes, wherein the first channel 16 is provided with an upper ash blowing port 13, a middle ash blowing port 13 and a lower ash blowing port 13, and the second channel 17 and the third channel 18 are respectively provided with an upper ash blowing port 13 and a lower ash blowing port 13; the ash blowing port 13 at the upper part of the first channel 16 is provided with a pin removal port 3, and the rest is the same as that of the embodiment 1.

The utility model discloses a water-cooling wall and smoke barrier in the water cooling system constitute boiler radiation part. The radiation part consists of a smoke barrier I14, a smoke barrier II 6, a front side water-cooling wall 5, a rear side water-cooling wall 15, a left side water-cooling wall and a right side water-cooling wall 7 and is divided into a first channel 16, a second channel 17 and a third channel 18. Flue gas enters from the lower part of the first channel 16, and refractory concrete 9 is poured around the inlet section of the first channel 16, so that the erosion of the flue gas to the water-cooled wall can be effectively avoided. After passing through the second channel 17, exits from the upper part of the third channel 18. The periphery of the radiation part adopts a large water-cooled wall structure, and small gaps between the water-cooled walls are welded and sealed by a sealing plate 12. The sealing structure is combined with a dust falling smoke box 10, a star-shaped dust discharging valve 11 and the like to form a full-sealing and welding sealing structure, and the sealing performance is reliable.

The temperature of the whole heating surface of the water cooling system is 193 ℃, so that the low-temperature corrosion of the flue gas can be avoided. The communicating pipe is arranged between the left and right heating surfaces, so that the water circulation of the whole heating surface can be ensured to be uniform and safe. Each channel of the radiation part is provided with 2-3 soot blowing openings 13, and the soot blowing openings 13 are respectively provided with a shock wave soot blower, so that the soot accumulated on a water wall in the running process of the boiler can be removed in time, and the efficient running of the boiler is ensured. Besides, the ash blowing port 13 at the upper part of the first channel 16 is provided with a pin removal port 3, so that the pin removal treatment of the flue gas can be realized.

The utility model discloses system structure is compact, and vertical the arranging has saved area. The water-cooled wall is used for forming the three-return-stroke flue, the trouble of arrangement of the heating surface at the tail part of the traditional coiled pipe is avoided, the outer wall of the flue is cooled well, the material consumption of the furnace wall 8 is greatly saved, the sealing performance of the flue is more reliable, and the boiler structure is more convenient for ash removal and pin removal treatment.

Claims

1. The utility model provides a vertical water pipe exhaust-heat boiler of industry three wastes incineration flue gas, includes furnace body (1), is equipped with water cooling system, steelframe (4), brickwork (8) and ash falling device on furnace body (1), its characterized in that: the water cooling system consists of a water cooling wall and a smoke barrier, the water cooling wall comprises a front side water cooling wall (5), a left side water cooling wall, a right side water cooling wall (7) and a rear side water cooling wall (15), and the smoke barrier comprises a smoke barrier I (14) and a smoke barrier II (6); the boiler is divided into a first channel (16), a second channel (17) and a third channel (18) by the front side water-cooling wall (5), the left and right side water-cooling walls (7), the smoke barrier II (6), the smoke barrier I (14) and the rear side water-cooling wall (15); the inlet end of the first channel (16) is poured with refractory concrete (9); gaps among the water-cooled walls are hermetically welded through a sealing plate (12); the ash falling device comprises an ash falling smoke box (10) and a star-shaped ash discharging valve (11); the water-cooled wall, the ash falling smoke box (10) and the star-shaped ash discharge valve (11) form a full-seal-welding closed structure.

2. The vertical water tube waste heat boiler for industrial three wastes incineration flue gas according to claim 1, characterized in that: the first channel (16) is provided with an upper ash blowing port (13), a middle ash blowing port and a lower ash blowing port (13), and the second channel (17) and the third channel (18) are respectively provided with an upper ash blowing port and a lower ash blowing port (13).

3. The vertical water tube waste heat boiler for industrial three wastes incineration flue gas according to claim 2, characterized in that: the ash blowing port (13) at the upper part of the first channel (16) is provided with a pin removing port (3).