CN216295608U

CN216295608U - Mixing device for waste heat of hot blast stove and high-temperature flue gas of combustion furnace

Info

Publication number: CN216295608U
Application number: CN202122166361.1U
Authority: CN
Inventors: 周冰冰; 魏伟杰; 吴进福; 唐伟杰
Original assignee: Shanghai Lalleen Industrial Equipment Co ltd
Current assignee: Shanghai Lalleen Industrial Equipment Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-04-15
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a mixing device for waste heat of a hot blast stove and high-temperature flue gas of a combustion furnace, which comprises a shell, wherein a first air inlet pipe and a second air inlet pipe are communicated with the outer wall of one side of the shell; a positive and negative rotation motor is arranged at the upper end of the outer wall of one side of the shell, which is far away from the first air inlet pipe, the output end of the positive and negative rotation motor is rotatably connected with a first rotating shaft, the first rotating shaft is fixedly connected with the outer wall of one side of a connecting plate, the outer wall of the other side of the connecting plate is fixedly connected with a second rotating shaft, and the second rotating shaft is connected with a shell wall bearing of the shell; the shower nozzle of evenly distributed on the connecting plate lower surface, the lower extreme intercommunication of shower nozzle and connecting plate inner chamber, and its inside atomizing piece that is provided with.

Description

Mixing device for waste heat of hot blast stove and high-temperature flue gas of combustion furnace

Technical Field

The utility model relates to the technical field of mixing devices for waste heat of a hot blast stove and flue gas of a combustion furnace, in particular to a mixing device for the waste heat of the hot blast stove and high-temperature flue gas of the combustion furnace.

Background

The biomass particle hot blast stove is a hot blast stove using biomass energy as fuel and is divided into a biomass steam hot blast stove, a biomass hot water hot blast stove, a biomass hot blast stove and the like. The flue gas discharged by the hot-blast stove and the combustion furnace contains a large amount of waste heat, and the air and the coal gas can be subjected to waste heat by transmitting the high-temperature flue gas into the plate-type preheater.

When the high-temperature flue gas that produces in transmission hot-blast furnace and the burner, can carry it again after mixing, but often contain impurity and dust in the flue gas, impurity and dust that contain in the flue gas can not got rid of to current device, lead to getting into in the flue gas of preheater impurity dust content higher, have influenced later preheating effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a mixing device for waste heat of a hot blast stove and high-temperature flue gas of a combustion furnace, wherein a spray head rotates back and forth to spray water mist through an arranged overturning spraying mechanism, the water mist wets impurities and dust carried in the flue gas to enable the impurities and the dust to move downwards to fall into a filter screen or water, only a small amount of impurities and dust are carried in the finally mixed flue gas, and the finally mixed flue gas enters a plate-type preheater through an air outlet pipe, so that the preheating of air and coal gas due to the excessive influence of the impurities and the dust in the flue gas can be prevented.

In order to solve the technical problems, the utility model provides the following technical scheme: a mixing device for waste heat of a hot blast stove and high-temperature flue gas of a combustion furnace comprises a shell, wherein a first air inlet pipe and a second air inlet pipe are sequentially communicated with the outer wall of one side of the shell, a water pipe is connected with the middle part of the outer wall of the top end of the shell, the upper end of the water pipe is connected with a water source, the lower end of the water pipe extends into the shell, the bottom end of the water pipe is connected with an overturning and spraying mechanism, the plane where the overturning and spraying mechanism is located above the plane where the first air inlet pipe is located, the device comprises a connecting plate fixed at the bottom end of the water pipe, a cavity is formed in the connecting plate, and the upper end of the cavity is communicated with the water pipe; a forward and reverse rotation motor mounted on the upper end of the outer wall of one side of the shell, which is far away from the first air inlet pipe, wherein the output end of the forward and reverse rotation motor is rotatably connected with a first rotating shaft, the first rotating shaft is fixedly connected with the outer wall of one side of the connecting plate, the outer wall of the other side of the connecting plate is fixedly connected with a second rotating shaft, and the second rotating shaft is connected with a shell wall bearing of the shell; evenly distributed in shower nozzle on the connecting plate lower surface, the shower nozzle with the lower extreme intercommunication of cavity in the connecting plate, and its inside atomizing piece that is provided with.

As a preferred technical scheme of the utility model, a filter screen is transversely arranged in the shell, and the plane of the filter screen is positioned below the plane of the second air inlet pipe.

As a preferable technical scheme of the utility model, the lower end of the outer wall of one side of the shell, which is far away from the first air inlet pipe, is communicated with an air outlet pipe, and the plane of the air outlet pipe is positioned below the plane of the filter screen.

As a preferred technical scheme of the utility model, two mounting blocks are fixedly mounted on the inner walls of two sides of the shell corresponding to the filter screen, inserting blocks are symmetrically and fixedly arranged on the outer walls of two sides of the filter screen, inserting grooves matched with the inserting blocks in shape and size are formed in the mounting blocks, and the inserting blocks are inserted into the inserting grooves in a sliding manner.

As a preferable technical scheme of the utility model, the bottom end of the shell is internally filled with clear water.

As a preferable technical scheme of the utility model, the first air inlet pipe is communicated with the hot blast stove, the second air inlet pipe is communicated with the combustion furnace, and the air outlet pipe is communicated with the plate preheater.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. when the device is used, flue gas enters the shell through the air inlet pipe, a water source is opened, the forward and reverse rotating motor is started, the rotation angle of the forward and reverse rotating motor is 80-90 degrees, water flows to each spray head through the water pipe, the spray heads spray water mist after being atomized by the atomizing sheet, in the process, the forward and reverse rotating motor rotates to drive the connecting plate to rotate back and forth through the rotating shaft, namely, the spray heads rotate back and forth to spray the water mist, the water mist wets impurities and dust carried in the flue gas, so that the impurities and the dust move downwards to fall into a filter screen or water, and finally, the mixed flue gas only carries a small amount of impurities and dust, and the mixed flue gas enters the plate preheater through the air outlet pipe, so that the preheating of air and coal gas can be prevented from being influenced by excessive impurities and dust in the flue gas;

2. when using the device, the flue gas passes through the intake pipe and gets into in the casing, because smuggleing partial impurity and dust secretly in the flue gas, these impurity and dust fall on the filter screen under the effect of water, will get off for a long time and scale deposit on the filter screen, and the scale deposit can influence the use of device, makes the filter screen become can dismantle through the slot that sets up and inserted block, can tear the filter screen down the washing at every interval a period, and is very convenient.

Drawings

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

FIG. 2 is a top view of the web of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

wherein: 1. a housing; 2. a positive and negative rotation motor; 3. a first rotating shaft; 301. a second rotating shaft; 4. a water pipe; 5. a connecting plate; 6. a spray head; 7. a first intake pipe; 8. a second intake pipe; 9. a filter screen; 10. an air outlet pipe; 11. mounting blocks; 12. inserting a block; 1201. and (4) a slot.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Examples

As shown in fig. 1, 2 and 3, the utility model provides a mixing device for waste heat of a hot-blast stove and high-temperature flue gas of a combustion furnace, which comprises a shell 1, wherein a first air inlet pipe 7 and a second air inlet pipe 8 are sequentially communicated with the outer wall of one side of the shell 1, an air outlet pipe 10 is communicated with the outer wall of the other side of the shell, the first air inlet pipe 7 is communicated with the hot-blast stove, the second air inlet pipe 8 is communicated with the combustion furnace, the air outlet pipe 10 is communicated with a plate-type preheater, clear water is filled in the bottom end of the shell 1, the middle part of the outer wall of the top end of the shell is connected with a water pipe 4, the upper end of the water pipe 4 is connected with a water source, the lower end of the water pipe extends into the shell 1, the bottom end of the shell is connected with an overturning and spraying mechanism, the plane of the overturning spraying mechanism is positioned above the plane of the first air inlet pipe 7, the shell comprises a connecting plate 5 fixed at the bottom end of the water pipe 4, a cavity is arranged in the connecting plate 5, the upper end of the cavity is communicated with the water pipe 4; a forward and reverse rotation motor 2 mounted on the upper end of the outer wall of one side of the housing 1, which is far away from the first air inlet pipe 7, wherein the output end of the forward and reverse rotation motor 2 is rotatably connected with a first rotating shaft 3, the first rotating shaft 3 is fixedly connected with the outer wall of one side of the connecting plate 5, the outer wall of the other side of the connecting plate 5 is fixedly connected with a second rotating shaft 301, and the second rotating shaft 301 is connected with a housing wall bearing of the housing 1; the spray heads 6 are uniformly distributed on the lower surface of the connecting plate 5, the spray heads 6 are communicated with the lower end of the cavity in the connecting plate 5, and the inside of the spray heads 6 is provided with atomizing sheets;

when the device is used, smoke generated in a hot blast stove enters a shell 1 through a first air inlet pipe 7, smoke generated in a combustion furnace enters the shell 1 through a second air inlet pipe 8, a water source is opened, a forward and reverse motor 2 is started, the forward and reverse motor 2 is arranged at a rotation angle of between 80 and 90 degrees, water flows into a cavity in a connecting plate 5 through a water pipe 4 and then flows to each spray head 6, the spray heads 6 spray water after being atomized by an atomizing sheet, in the process, the forward and reverse motor 2 rotates to drive a first rotating shaft 3, the first rotating shaft 3 drives the whole connecting plate 5 to rotate back and forth, namely, the spray heads 6 rotate back and forth to spray water mist, the water mist wets impurities and dust carried in the smoke, so that the impurities and the dust move downwards to fall into a filter screen 9 or water, and only a small amount of impurities and dust carried in the finally mixed smoke enters a plate preheater through an air outlet pipe 10, the preheating of air and coal gas can be prevented from being influenced by excessive impurity and dust in the flue gas.

As shown in fig. 1 and fig. 3, in the embodiment, a filter screen 9 is transversely disposed inside a housing 1, a plane where the filter screen 9 is located between a plane where a second air inlet pipe 8 is located and a plane where an air outlet pipe 10 is located, two mounting blocks 11 are fixedly mounted on inner walls of two sides of the housing 1 corresponding to the filter screen 9, insertion blocks 12 are symmetrically and fixedly disposed on outer walls of two sides of the filter screen 9, insertion grooves 1201 which are matched with the insertion blocks 12 in shape and size are formed in the mounting blocks 11, and the insertion blocks 12 are slidably inserted into the insertion grooves 1201;

when using the device, the flue gas that produces in the hot-blast furnace gets into in the casing 1 through first intake pipe 7, the flue gas that produces in the burning furnace gets into in the casing 1 through second intake pipe 8, because smuggle some impurity and dust secretly in the flue gas, these impurity and dust are under the effect of water, fall on filter screen 9, will scale deposit on filter screen 9 for a long time, and the scale deposit can influence the use of device, make filter screen 9 become can dismantle through slot 1201 and inserted block 12 that set up, can tear filter screen 9 down the washing at every other period, and is very convenient.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mixing arrangement of hot-blast furnace waste heat and burning furnace high temperature flue gas, includes casing (1), the intercommunication has first intake pipe (7), second intake pipe (8) in proper order on one side outer wall of casing (1), its characterized in that: the middle part of the outer wall of the top end of the shell (1) is connected with a water pipe (4), the upper end of the water pipe (4) is connected with a water source, the lower end of the water pipe extends into the shell (1), the bottom end of the water pipe is connected with a turnover spraying mechanism, the plane of the turnover spraying mechanism is positioned above the plane of the first air inlet pipe (7), and the turnover spraying mechanism comprises,

the connecting plate (5) is fixed at the bottom end of the water pipe (4), a cavity is formed in the connecting plate (5), and the upper end of the cavity is communicated with the water pipe (4);

a forward and reverse rotation motor (2) is mounted at the upper end of the outer wall of one side, far away from the first air inlet pipe (7), of the shell (1), the output end of the forward and reverse rotation motor (2) is rotatably connected with a first rotating shaft (3), the first rotating shaft (3) is fixedly connected with the outer wall of one side of the connecting plate (5), the outer wall of the other side of the connecting plate (5) is fixedly connected with a second rotating shaft (301), and the second rotating shaft (301) is connected with a shell wall bearing of the shell (1);

evenly distributed in shower nozzle (6) on connecting plate (5) lower surface, shower nozzle (6) with the lower extreme intercommunication of cavity in connecting plate (5), and its inside atomizing piece that is provided with.

2. The mixing device of the waste heat of the hot blast stove and the high-temperature flue gas of the combustion furnace as claimed in claim 1, characterized in that: a filter screen (9) is transversely arranged in the shell (1), and the plane where the filter screen (9) is located below the plane where the second air inlet pipe (8) is located.

3. The mixing device of the waste heat of the hot blast stove and the high-temperature flue gas of the combustion furnace as claimed in claim 2, characterized in that: the lower end of the outer wall of one side, far away from the first air inlet pipe (7), of the shell (1) is communicated with an air outlet pipe (10), and the plane where the air outlet pipe (10) is located below the plane where the filter screen (9) is located.

4. The mixing device of the waste heat of the hot blast stove and the high-temperature flue gas of the combustion furnace as claimed in claim 2, characterized in that: casing (1) both sides inner wall with the corresponding department fixed mounting of filter screen (9) has two installation pieces (11), the symmetry is fixed on the both sides outer wall of filter screen (9) and is equipped with inserted block (12), seted up in installation piece (11) with slot (1201) of shape, size looks adaptation of inserted block (12), inserted block (12) with slot (1201) slip grafting.

5. The mixing device of the waste heat of the hot blast stove and the high-temperature flue gas of the combustion furnace as claimed in claim 1, characterized in that: the bottom end of the shell (1) is filled with clear water.

6. The mixing device of the waste heat of the hot blast stove and the high-temperature flue gas of the combustion furnace as claimed in claim 3, characterized in that: the first air inlet pipe (7) is communicated with the hot blast stove, the second air inlet pipe (8) is communicated with the combustion furnace, and the air outlet pipe (10) is communicated with the plate type preheater.