CN211781974U

CN211781974U - Flue gas waste heat utilization device of hot blast stove

Info

Publication number: CN211781974U
Application number: CN202020061217.4U
Authority: CN
Inventors: 袁英昆
Original assignee: Tangshan Wenfeng Shanchuan Wheel Co ltd
Current assignee: Tangshan Wenfeng Special Steel Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-27
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a flue gas waste heat utilization device of a hot blast stove, which comprises a water supply tank, a flue gas collecting cover and the hot blast stove, a combustion furnace is communicated and installed at one side of the hot blast stove, a water tank is fixed at the upper end surface of the combustion furnace, the outer side of the combustion furnace is connected with a blower, one side of the interior of the hot blast stove is provided with a regenerator, a heat exchange box is fixed at the upper end inside the heat storage chamber, checker bricks are fixed at the lower end inside the heat storage chamber, one side of the lower end of the heat exchange box penetrates through one side of the checker bricks through the through pipe, one side of the interior of the heat exchange box, which is far away from the through pipe, is fixed with a heat-conducting silica gel sheet, a dust chamber is arranged on one side of the hot blast stove, which is far away from the heat accumulation chamber, at equal intervals, the upper end of the dust chamber is connected on the flue gas collecting cover through a flue gas taking pipe, and the smoke trapping cover is fixed on the upper end surface of the hot blast stove, and one side of the smoke trapping cover is connected with a smoke guide pipe. The utility model discloses possess heat storage and dual heat transfer, improve heat exchange efficiency's advantage.

Description

Flue gas waste heat utilization device of hot blast stove

Technical Field

The utility model relates to a hot-blast furnace technical field specifically is a hot-blast furnace flue gas waste heat utilization equipment.

Background

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

The hot blast stove can generate a large amount of heat, and cooling equipment is required to be equipped for reducing the temperature of the working environment and simultaneously ensuring the service life of the equipment. The existing equipment cannot effectively recover heat in the flue gas in use, so that energy waste is caused, and the recovery power of single heat recovery equipment is low; the existing equipment can not continuously store heat, so that the heat circulation loss is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hot-blast furnace flue gas waste heat utilization equipment possesses heat storage and dual heat transfer, improves heat exchange efficiency's advantage, solves the existing equipment and lasts the heat transfer, and the heat loss is big and the problem that heat exchange efficiency is low.

In order to achieve the above object, the utility model provides a following technical scheme: a hot blast stove flue gas waste heat utilization device comprises a water supply tank, a flue gas collecting cover and a hot blast stove, wherein one side of the hot blast stove is communicated with and provided with a combustion furnace, a water tank is fixed on the upper end surface of the combustion furnace, the outer side of the combustion furnace is connected with an air blower, one side of the inside of the hot blast stove is provided with a heat storage chamber, the upper end of the inside of the heat storage chamber is fixed with a heat exchange box, the lower end of the inside of the heat storage chamber is fixed with a checker brick, one side of the lower end of the heat exchange box penetrates through one side of the checker brick through a through pipe, one side of the inside of the heat exchange box, which deviates from the through pipe, is fixed with a heat conducting silica gel sheet, one side of the inside of the hot blast stove, which deviates from the heat storage chamber, is equidistantly provided with a dust removal chamber, and a water pump is fixed in the water supply tank, and a heating pipe is fixed at the upper end of the water pump.

Preferably, a feed inlet is arranged on the front end face of the combustion furnace in a penetrating mode, and a blocking cover is rotatably arranged in the feed inlet through a hinge.

Preferably, a smoke exhaust pipe penetrates through the lower side of the front end face of the hot blast stove and is connected with the lower end of the inner part of the heat storage chamber, and a valve is rotatably mounted on the smoke exhaust pipe.

Preferably, the dust removal chamber is provided with three, and the three dust removal chambers are connected through a communication port, and the dust removal chamber is connected with the combustion furnace.

Preferably, one end of the smoke guide pipe, which is far away from the smoke trapping cover, penetrates through the hot blast stove and then is connected with the inside of the heat exchange box.

Preferably, one end of the heating pipe, which is far away from the water pump, penetrates through the hot blast stove, the heat exchange box, the heat-conducting silica gel sheet and the checker bricks and then is connected back to the inside of the water supply tank.

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

1. the utility model discloses a set up checker brick and heat transfer case, external power supply supplies power, start air-blower and water pump, the water pump forms the circulation through the heating pipe discharge with the water in the water supply tank, the staff opens the fender lid, supplement the fuel in the burning furnace through the feed inlet, blow in the air through the air-blower, increase the combustion rate, improve inside heat, high temperature flue gas gets into the dust removal chamber of hot-blast furnace, through a plurality of clean rooms make the interior particle impurity of flue gas subside, flue gas gets into flue gas entrapment cover from getting the tobacco pipe after passing through the intercommunication mouth transmission, get into the heat transfer case of regenerator through leading the tobacco pipe, high temperature flue gas contacts the circulating water that heat conduction silica gel piece gives the heating pipe with heat conduction, carry out the preliminary heating of water, high temperature flue gas passes through the run-through pipe, absorb waste heat in the flue gas through the checker brick, carry, improve heat-conducting efficiency, the tub of discharging fume of regenerator bottom is discharged surplus flue gas into dust collecting equipment in, purifies the back and discharges, improves dual heating through checker brick and heat conduction silica gel piece, ensures heating efficiency, carries out the heat accumulation operation through the checker brick simultaneously, fully absorbs waste heat in the flue gas, avoids the energy extravagant.

Drawings

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

FIG. 2 is a schematic view of the appearance structure of the present invention;

fig. 3 is a schematic sectional view of the heat exchange box of the present invention.

In the figure: 1. a water tank; 2. a feed inlet; 3. a blocking cover; 4. a combustion furnace; 5. a blower; 6. penetrating the pipe; 7. checker bricks; 8. heating a tube; 9. a water pump; 10. a water supply tank; 11. a heat exchange box; 12. a smoke guide pipe; 13. a regenerator; 14. a flue gas trapping cover; 15. a dust chamber; 16. taking a smoke tube; 17. a communication port; 18. a hot blast stove; 19. a smoke exhaust pipe; 20. a heat-conducting silica gel sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides a hot-blast furnace flue gas waste heat utilization equipment, includes water supply tank 10, flue gas entrapment cover 14 and hot-blast furnace 18, and one side intercommunication of hot-blast furnace 18 is installed and is fired burning furnace 4, and the preceding terminal surface that fires burning furnace 4 runs through to install feed inlet 2, rotates through the hinge in the feed inlet 2 and installs and keep off lid 3, and the up end that fires burning furnace 4 is fixed with water tank 1, and the outside that fires burning furnace 4 is connected with air-blower 5, and regenerator 13 has been seted up to inside one side of hot-blast furnace 18, the utility model discloses well air-blower 5's model is TB.

The inside upper end of regenerator 13 is fixed with heat transfer case 11, and the inside lower extreme of regenerator 13 is fixed with checker brick 7, and one side of the lower extreme one side of heat transfer case 11 runs through one side of checker brick 7 through running through pipe 6, and the inside of heat transfer case 11 deviates from one side of running through pipe 6 and is fixed with heat conduction silica gel piece 20.

The clean room 15 has been seted up to the inside one side equidistance that deviates from regenerator 13 of hot-blast furnace 18, clean room 15 is equipped with threely altogether, and be connected through intercommunication mouth 17 between three clean room 15, clean room 15 is connected and is fired furnace 4, the upper end of clean room 15 is connected on flue gas entrapment covers 14 through getting tobacco pipe 16, and flue gas entrapment covers 14 and fix the up end at hot-blast furnace 18, one side of flue gas entrapment cover 14 is connected with leads tobacco pipe 12, the preceding terminal surface downside of hot-blast furnace 18 runs through and installs exhaust pipe 19, and the inside lower extreme of regenerator 13 is connected to exhaust pipe 19, rotate on the exhaust pipe 19 and install the valve, lead the inside of connecting heat transfer case 11 after the one end that tobacco pipe 12 deviates from flue gas entrapment cover 14 runs.

The inside of water supply tank 10 is fixed with water pump 9, the model of water pump 9 in the utility model is TL-C01-C, the upper end of water pump 9 is fixed with heating pipe 8, the one end of heating pipe 8 deviating from water pump 9 runs through hot-blast furnace 18, heat exchange box 11, heat conduction silica gel sheet 20 and checker brick 7 and then connects back to the inside of water supply tank 10, external power supply supplies power, start air blower 5 and water pump 9, water pump 9 discharges the water in water supply tank 10 through heating pipe 8 to form circulation, the staff opens block cover 3, supplement fuel to combustion furnace 4 through feed inlet 2, blow in air through air blower 5, increase burning rate, improve internal heat, high temperature flue gas gets into the clean room 15 of hot-blast furnace 18, through a plurality of clean rooms 15 make the granule impurity subside in the flue gas, flue gas gets into flue gas entrapment cover 14 from smoke taking pipe 16 after passing through the transmission of intercommunication mouth 17, get into heat exchange box 11 of regenerator 13 through guide 12, high temperature flue gas contact heat conduction silica gel piece 20 gives the circulating water of heating pipe 8 with heat conduction, carry out the primary heating of water, high temperature flue gas is through running through pipe 6, absorb waste heat in the flue gas through checker brick 7, carry out the heat accumulation, the heat of checker brick 7 carries out the secondary heating to heating pipe 8 internal recycle water, improve heat-conductive efficiency, discharge pipe 19 of 13 bottoms of regenerator is discharged surplus flue gas in the dust collecting equipment, discharge after the purification, improve dual heating through checker brick 7 and heat conduction silica gel piece 20, ensure heating efficiency, carry out the heat accumulation operation through checker brick 7 simultaneously, fully absorb waste heat in the flue gas, avoid the energy extravagant, seek affiliated technical staff through the model and directly purchase on market, can directly look over when needing to know this repeated model equipment and seek technical specification and know, therefore this equipment does not carry out.

The working principle is as follows: in the working process of the utility model, the external power supply supplies power, the air blower 5 and the water pump 9 are started, the water in the water supply tank 10 is discharged through the heating pipe 8 by the water pump 9 to form circulation, the baffle cover 3 is opened, the fuel is supplemented in the combustion furnace 4 through the feed inlet 2, air is blown in through the air blower 5, high-temperature flue gas enters the dust chamber 15 of the hot blast stove 18, particle impurities in the flue gas are settled through a plurality of dust chambers 15, the flue gas enters the flue gas collecting cover 14 from the smoke taking pipe 16 after being transmitted through the communicating port 17, the flue gas enters the heat exchange box 11 of the heat storage chamber 13 through the smoke guiding pipe 12, the high-temperature flue gas contacts the heat conducting silicon 20 to conduct heat to the circulating water of the heating pipe 8, the water is primarily heated, the high-temperature flue gas absorbs the residual heat in the flue gas through the checker brick 7 to store heat, the heat is secondarily heated by the heat of the checker brick 7 to the circulating water in, and (5) discharging after purification. The working principle of the present invention is the above.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hot-blast furnace flue gas waste heat utilization equipment, includes water supply tank (10), flue gas entrapment cover (14) and hot-blast furnace (18), its characterized in that: one side of the hot blast stove (18) is communicated with and is provided with a combustion furnace (4), the upper end face of the combustion furnace (4) is fixed with a water tank (1), the outer side of the combustion furnace (4) is connected with an air blower (5), one side of the inside of the hot blast stove (18) is provided with a heat storage chamber (13), the upper end of the inside of the heat storage chamber (13) is fixed with a heat exchange box (11), the lower end of the inside of the heat storage chamber (13) is fixed with a checker brick (7), one side of the lower end of the heat exchange box (11) penetrates through one side of the checker brick (7) through a penetrating pipe (6), one side of the inside of the heat exchange box (11) deviating from the penetrating pipe (6) is fixed with a heat conduction silica gel sheet (20), one side of the inside of the hot blast stove (18) deviating from the heat storage chamber (13) is equidistantly provided with a dust removal chamber (15), the upper, and the flue gas trapping cover (14) is fixed on the upper end face of the hot blast stove (18), one side of the flue gas trapping cover (14) is connected with a smoke guide pipe (12), a water pump (9) is fixed in the water supply tank (10), and a heating pipe (8) is fixed at the upper end of the water pump (9).

2. The flue gas waste heat utilization device of the hot blast stove according to claim 1, characterized in that: the front end face of the combustion furnace (4) is provided with a feed inlet (2) in a penetrating mode, and a blocking cover (3) is rotatably arranged in the feed inlet (2) through a hinge.

3. The flue gas waste heat utilization device of the hot blast stove according to claim 1, characterized in that: the lower side of the front end face of the hot blast stove (18) is provided with a smoke exhaust pipe (19) in a penetrating mode, the smoke exhaust pipe (19) is connected with the lower end of the inner portion of the heat storage chamber (13), and the smoke exhaust pipe (19) is provided with a valve in a rotating mode.

4. The flue gas waste heat utilization device of the hot blast stove according to claim 1, characterized in that: the dust removal chamber (15) are provided with three dust removal chambers (15), the three dust removal chambers (15) are connected through a communication port (17), and the dust removal chambers (15) are connected with the combustion furnace (4).

5. The flue gas waste heat utilization device of the hot blast stove according to claim 1, characterized in that: one end of the smoke guide pipe (12) departing from the smoke trapping cover (14) penetrates through the hot blast stove (18) and then is connected with the inside of the heat exchange box (11).

6. The flue gas waste heat utilization device of the hot blast stove according to claim 1, characterized in that: one end of the heating pipe (8) departing from the water pump (9) penetrates through the hot blast stove (18), the heat exchange box (11), the heat-conducting silica gel sheet (20) and the checker bricks (7) and then is connected back to the inside of the water supply tank (10).