CN211204099U

CN211204099U - Smoke and dust gas heat energy recovery device for hot blast stove

Info

Publication number: CN211204099U
Application number: CN201922059346.XU
Authority: CN
Inventors: 林志伟
Original assignee: Qian'an Nuancheng Boiler Manufacturing Co ltd
Current assignee: Qian'an Nuancheng Boiler Manufacturing Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-07
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a smoke and dust gas heat energy recovery device for a hot blast stove, belonging to the technical field of heat energy recovery, comprising a smoke exhaust pipeline, wherein the smoke exhaust pipeline is communicated with the top of a heat energy recovery box a through a smoke inlet pipe, and the bottom of the heat energy recovery box a is communicated with the top of a heat energy recovery box b through a communicating pipe; utilize circulating water pump a and the power that circulating water pump b work produced to make water liquid pass through spiral pipe a and spiral pipe b and accomplish the water cycle operation, because water liquid upwards flows from spiral pipe a or spiral pipe b bottom, and smoke and dust gas removes to the bottom from the top of heat recovery case an or heat recovery case b, make the flow velocity between the two slow, improve heat recovery efficiency, thereby it reaches the purpose of heat recovery to heat water liquid to heat, energy-concerving and environment-protective, smoke and dust gas after the emission forms under the effect of water curtain at the shower nozzle, also purified gas when lowering the temperature, avoid smoke and dust gas to cause the pollution to the environment.

Description

Smoke and dust gas heat energy recovery device for hot blast stove

Technical Field

The utility model belongs to the technical field of heat recovery, concretely relates to smoke and dust gas heat recovery unit for hot-blast furnace.

Background

The hot blast stove is a heat power machine, is widely applied in China in the end of the 70 th 20 th century, has become an upgrading product of an electric heat source and a traditional steam power heat source in many industries, has multiple varieties and complete series, is divided into a hand-burning mode and a machine-burning mode by a coal feeding mode, and is divided into a coal furnace, an oil furnace, a gas furnace and the like by fuel types.

At present, the existing hot blast stove can generate a large amount of smoke and dust gas when working, the smoke and dust gas has very high heat, if the smoke and dust gas is directly discharged, the environment is easily affected, and on the other hand, the energy is wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smoke and dust gas heat recovery unit for hot-blast furnace to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a smoke dust gas heat energy recovery device for a hot blast stove comprises a smoke exhaust pipeline, wherein the smoke exhaust pipeline is communicated with the top of a heat energy recovery box a through a smoke inlet pipe, the bottom of the heat energy recovery box a is communicated with the top of a heat energy recovery box b through a communicating pipe, the side walls of the bottoms of the heat energy recovery box a and the heat energy recovery box b are fixedly provided with a circulating water pump a and a circulating water pump b, the circulating water pump a and the circulating water pump b are respectively communicated with one ends of a spiral pipe a and a spiral pipe b, the spiral pipe a is communicated with the inside of a water tank through a water outlet pipe a, the spiral pipe b is communicated with the water outlet pipe a through a water outlet pipe b, the water inlet of the circulating water pump a is communicated with the bottom of the inner side of the water tank through a water suction pipe a, the water inlet of the circulating water pump b is communicated with the, and the lower fixed surface that goes out the tobacco pipe and be close to the opening part is equipped with the guide plate, and the guide plate is connected in the upper portion of cistern, a lateral wall fixed mounting of cistern has circulating water pump c, and circulating water pump c's water inlet communicates through the bottom of drinking-water pipe c with the cistern, circulating water pump c is linked together through drain pipe and shunt tubes, the shunt tubes passes through fixing base fixed mounting and goes out the upper surface that the tobacco pipe is close to the opening part, circulating water pump a, circulating water pump b and circulating water pump c respectively with external power supply electric connection.

By adopting the scheme, by arranging the circulating water pump a, the spiral pipe a, the water outlet pipe a, the water pumping pipe a, the water tank, the circulating water pump b, the spiral pipe b, the water outlet pipe b and the water pumping pipe b, water circulation operation is completed by the spiral pipe a and the spiral pipe b by utilizing power generated by the work of the circulating water pump a and the circulating water pump b, because the water flows upwards from the bottom of the spiral pipe a or the spiral pipe b, and smoke and dust gas moves from the top to the bottom of the heat energy recovery box a or the heat energy recovery box b, the flow speed between the heat energy recovery box a and the heat energy recovery box b is reduced, the heat energy recovery efficiency is improved, the water is heated, the aim of heat energy recovery is fulfilled, the energy is saved and the environment is protected, by arranging the smoke and dust filter screen, the reservoir, the circulating water pump c, the water pumping pipe c, the water outlet pipe, the temperature is reduced, and simultaneously, the gas is purified, so that the pollution of smoke gas to the environment is avoided.

What needs to be explained in the above scheme is:

the model of the circulating water pump a, the model of the circulating water pump b and the model of the circulating water pump c can be TD-40 VK-1.

As a preferred embodiment, at least three fixed frames are detachably connected in the smoke exhaust pipeline through bolts, and a smoke filter screen is arranged in each fixed frame.

By adopting the scheme, the particle impurities in the smoke dust gas are filtered by the smoke dust filter screen, and meanwhile, the smoke dust filter screen is convenient to detach and can be cleaned.

In a preferred embodiment, a vacuum layer is arranged in the side wall of the water tank.

By adopting the scheme, the vacuum layer has a heat preservation effect, so that the heat preservation performance of the water tank is improved.

In a preferred embodiment, a plurality of spray heads are connected to the shunt pipe, and the spray heads are inclined downwards and aligned with the opening of the smoke outlet pipe.

By adopting the scheme, the water curtain is formed by downwards spraying water liquid by the spray head, and gas is purified while the temperature is reduced under the action of the water curtain, so that the pollution of smoke gas to the environment is avoided.

In a preferred embodiment, the spiral pipe a and the spiral pipe b are both spiral and are respectively arranged inside the heat energy recovery box a and the heat energy recovery box b.

Adopt above-mentioned scheme, the spiral helicine setting makes spiral pipe a and spiral pipe b and gaseous area of contact maximize of smoke and dust, improves spiral pipe a and spiral pipe b's the efficiency of being heated.

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

according to the smoke and dust gas heat energy recovery device for the hot blast stove, the circulating water pump a, the spiral pipe a, the water outlet pipe a, the water pumping pipe a, the water tank, the circulating water pump b, the spiral pipe b, the water outlet pipe b and the water pumping pipe b are arranged, water circulation operation is completed by the water liquid through the spiral pipe a and the spiral pipe b by utilizing power generated by the work of the circulating water pump a and the circulating water pump b, the water liquid flows upwards from the bottom of the spiral pipe a or the spiral pipe b, and smoke and dust gas moves from the top to the bottom of the heat energy recovery box a or the heat energy recovery box b, so that the flowing speed between the smoke and dust gas and the heat energy recovery box b is reduced, the heat energy;

this a smoke and dust gas heat recovery unit for hot-blast furnace filters the particle impurity in the smoke and dust gas through setting up smoke and dust filter screen, cistern, circulating water pump c, drinking-water pipe c, drain pipe, shunt tubes and shower nozzle, and the smoke and dust gas after the emission has also purified gas when the lowering temperature under the effect that the shower nozzle formed the water curtain simultaneously, avoids the smoke and dust gas to cause the pollution to the environment.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the cross section of the water tank of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the fixing frame and the smoke filter screen of the present invention;

fig. 4 is an enlarged schematic structural diagram of the position a of the present invention.

In the figure: 1. a smoke exhaust duct; 2. a smoke inlet pipe; 3. a heat energy recovery tank a; 4. a communicating pipe; 5. a heat energy recovery tank b; 6. a circulating water pump a; 7. a spiral tube a; 8. a water outlet pipe a; 9. a water pumping pipe a; 10. a water tank; 11. a vacuum layer; 12. a circulating water pump b; 13. a spiral tube b; 14. a water outlet pipe b; 15. a water pumping pipe b; 16. discharging the smoke tube; 17. a baffle; 18. a reservoir; 19. a circulating water pump c; 20. a water pumping pipe c; 21. a drain pipe; 22. a shunt tube; 23. a fixed seat; 24. a spray head; 25. a fixed frame; 26. a smoke dust filter screen.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-4, the present invention provides a smoke and dust gas heat energy recovery device for a hot-blast stove, which comprises a smoke exhaust pipe 1, wherein at least three fixed frames 25 are detachably connected in the smoke exhaust pipe 1 through bolts, and a smoke and dust filter screen 26 (see fig. 1 and 3) is arranged in each fixed frame 25; the smoke dust filter screen 26 is used for filtering particle impurities in smoke dust gas, and meanwhile, the smoke dust filter screen 26 is convenient to disassemble and clean.

The smoke exhaust pipeline 1 is communicated with the top of a heat energy recovery box a3 through a smoke inlet pipe 2, the bottom of the heat energy recovery box a3 is communicated with the top of a heat energy recovery box b5 through a communicating pipe 4, the side walls of the bottoms of the heat energy recovery box a3 and the heat energy recovery box b5 are fixedly provided with a circulating water pump a6 and a circulating water pump b12, the circulating water pump a6 and the circulating water pump b12 are respectively communicated with one end of a spiral pipe a7 and one end of a spiral pipe b13, the spiral pipe a7 and the spiral pipe b13 are both spiral and are respectively arranged inside the heat energy recovery box a3 and the heat energy recovery box b5 (see; the spiral arrangement maximizes the contact area of the spiral pipe a7 and the spiral pipe b13 with the smoke gas, and improves the heating efficiency of the spiral pipe a7 and the spiral pipe b 13.

The spiral pipe a7 is communicated with the inside of the water tank 10 through a water outlet pipe a8, and a vacuum layer 11 is arranged in the side wall of the water tank 10 (see fig. 1 and 2); the vacuum layer 11 has a heat-insulating effect, thereby improving the heat-insulating property of the water tank 10 itself.

The spiral pipe b13 is communicated with the water outlet pipe a8 through the water outlet pipe b14, the water inlet of the circulating water pump a6 is communicated with the bottom of the inner side of the water tank 10 through the water pumping pipe a9, the water inlet of the circulating water pump b12 is communicated with the water pumping pipe a9 through the water pumping pipe b15, the bottom of the heat energy recovery tank b5 is communicated with the smoke outlet pipe 16, the lower surface of the smoke outlet pipe 16 close to the opening is fixedly provided with a guide plate 17, the guide plate 17 is connected with the upper part of the water storage tank 18, one side wall of the water storage tank 18 is fixedly provided with the circulating water pump c19, the water inlet of the circulating water pump c19 is communicated with the bottom of the water storage tank 18 through the water pumping pipe c20, the circulating water pump c19 is communicated with the diversion pipe 22 through the water drainage pipe 21, the diversion pipe 22 is connected; the water curtain is formed by downwards spraying water liquid by the spray head 24, so that the temperature is reduced and the gas is purified under the action of the water curtain, and the pollution of smoke gas to the environment is avoided.

The shunt tube 22 is fixedly mounted on the upper surface of the smoke outlet tube 16 near the opening through the fixing seat 23, and the circulating water pump a6, the circulating water pump b12 and the circulating water pump c19 are respectively electrically connected with an external power supply.

When in use, the smoke exhaust pipeline 1 is connected to the smoke exhaust port of the hot blast stove, smoke and dust gas enters the heat energy recovery box a3 through the smoke exhaust pipeline 1 and the smoke inlet pipe 2, water circulation operation is completed through the spiral pipe a7 and the spiral pipe b13 by utilizing power generated by the work of the circulating water pump a6 and the circulating water pump b12, as the water flows upwards from the bottom of the spiral pipe a7 or the spiral pipe b13, and the smoke and dust gas moves from the top to the bottom of the heat energy recovery box a3 or the heat energy recovery box b5, the flow speed between the two is reduced, the heat energy recovery efficiency is improved, the water is heated, the purpose of heat energy recovery is achieved, energy is saved and environment-friendly, meanwhile, the smoke and dust 26 in the smoke and dust gas in the smoke exhaust pipeline 1 is filtered by utilizing the filter screen, the circulating water pump c19 is started to work, the circulating water pump c19 is used for pumping the, the smoke gas discharged from the smoke outlet pipe 16 is subjected to the action of the water curtain formed by the spray head 24, so that the temperature is reduced, the gas is purified, and the pollution of the smoke gas to the environment is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a smoke and dust gas heat recovery unit for hot-blast furnace, includes smoke exhaust pipe (1), its characterized in that: the smoke exhaust pipeline (1) is communicated with the top of a heat energy recovery box a (3) through a smoke inlet pipe (2), the bottom of the heat energy recovery box a (3) is communicated with the top of a heat energy recovery box b (5) through a communicating pipe (4), the side walls of the bottoms of the heat energy recovery box a (3) and the heat energy recovery box b (5) are fixedly provided with a circulating water pump a (6) and a circulating water pump b (12), the circulating water pump a (6) and the circulating water pump b (12) are respectively communicated with one ends of a spiral pipe a (7) and a spiral pipe b (13), the spiral pipe a (7) is communicated with the inside of a water tank (10) through a water outlet pipe a (8), the spiral pipe b (13) is communicated with a water outlet pipe a (8) through a water outlet pipe b (14), and the water inlet of the circulating water pump a (6) is communicated with the bottom of the inner side of the water tank (10, the water inlet of the circulating water pump b (12) is communicated with a water pumping pipe a (9) through a water pumping pipe b (15), the bottom of the heat energy recovery box b (5) is communicated with a smoke outlet pipe (16), and a guide plate (17) is fixedly arranged on the lower surface of the smoke outlet pipe (16) close to the opening, and the guide plate (17) is connected with the upper part of the reservoir (18), a circulating water pump c (19) is fixedly arranged on one side wall of the reservoir (18), and the water inlet of the circulating water pump c (19) is communicated with the bottom of the water storage tank (18) through a water pumping pipe c (20), the circulating water pump c (19) is communicated with the shunt pipe (22) through a drain pipe (21), the shunt pipe (22) is fixedly arranged on the upper surface of the smoke outlet pipe (16) close to the opening through a fixed seat (23), and the circulating water pump a (6), the circulating water pump b (12) and the circulating water pump c (19) are respectively electrically connected with an external power supply.

2. The dust gas heat energy recovery device for a hot blast stove according to claim 1, characterized in that: at least three fixed frames (25) are detachably connected in the smoke exhaust pipeline (1) through bolts, and smoke dust filter screens (26) are arranged in the fixed frames (25).

3. The dust gas heat energy recovery device for a hot blast stove according to claim 1, characterized in that: and a vacuum layer (11) is arranged in the side wall of the water tank (10).

4. The dust gas heat energy recovery device for a hot blast stove according to claim 1, characterized in that: the shunt pipe (22) is connected with a plurality of spray heads (24), and the spray heads (24) are inclined downwards and aligned with the openings of the smoke outlet pipes (16).

5. The dust gas heat energy recovery device for a hot blast stove according to claim 1, characterized in that: and the spiral pipe a (7) and the spiral pipe b (13) are both spiral and are respectively arranged in the heat energy recovery box a (3) and the heat energy recovery box b (5).