A hot air stove for recovering heat from smoke pipe

Abstract

The utility model discloses a hot blast furnace for recovering heat from a smoke pipe, which solves the problem that when a filter device is used, the filter device is inserted into the filter device, and when the filter device is pulled out for cleaning, the filter device is pulled out forward, and when smoke enters the interior of the pipe, due to filtering obstruction, the blocked dust in the smoke adheres to the side wall of the pipe and is inconvenient to clean. The utility model comprises a hot blast furnace and a filter pipe, wherein an air inlet pipe is fixedly installed at the right end of the hot blast furnace, a first connecting pipe is fixedly connected to the right end of the air inlet pipe, the filter pipe is arranged on the right side of the air inlet pipe, and a second connecting pipe is arranged on the right side of the filter pipe, the first connecting pipe, the filter pipe and the outer side walls of the second connecting pipe are all fixedly sleeved and installed with connecting flanges, the filter pipe can be disassembled and installed by the arrangement, the dustproof net can be conveniently taken out and cleaned, and after the filter pipe is taken out, it is convenient to clean the interior of the second connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stoves, in particular to a hot blast stove for recovering heat from a smoke pipe. Background Art

[0002] A hot blast furnace is a thermal power machine. The function of the hot blast furnace is to heat the blast to the required temperature to improve the benefit and efficiency of the blast furnace. After searching, the Chinese patent authorization number CN211204099U discloses a smoke gas heat energy recovery device for a hot blast furnace, which belongs to the field of heat energy recovery technology. The device comprises a smoke exhaust pipe, wherein the smoke exhaust pipe is connected to 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 connected to the top of a heat energy recovery box b through a connecting pipe; the power generated by the working of the circulating water pump a and the circulating water pump b is used to make the water liquid pass through the spiral tube a and the spiral tube b to complete the water circulation operation. Since the water liquid flows upward from the bottom of the spiral tube a or the spiral tube b, and the smoke 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 two is slowed down, the heat energy recovery efficiency is improved, the water liquid is heated to achieve the purpose of heat energy recovery, energy saving and environmental protection, and the smoke gas after discharge is reduced in temperature under the action of the water curtain formed by the nozzle, and the gas is also purified to avoid the smoke gas from polluting the environment. However, the filter device of the device is inserted when in use, and the filter device is pulled out forward when it is pulled out for cleaning. When smoke enters the interior of the pipe, the blocked dust in the smoke adheres to the side wall of the pipe due to the filtering obstruction, and it is inconvenient to clean. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a hot air furnace for recovering heat from smoke pipes, which solves the problem that when the filter device is inserted into the filter device during use, and the filter device is pulled out forwards for cleaning, when smoke enters the interior of the pipe, the blocked dust in the smoke adheres to the side wall of the pipe due to the filter obstruction, making it inconvenient to clean.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hot air furnace for recovering heat from a smoke pipe, comprising a hot air furnace and a filter tube, an air inlet pipe is fixedly installed on the right end of the hot air furnace, a first connecting tube is fixedly connected to the right end of the air inlet pipe, the filter tube is arranged on the right side of the air inlet pipe, and a second connecting tube is arranged on the right side of the filter tube, the outer side walls of the first connecting tube, the filter tube and the second connecting tube are all fixedly sleeved with connecting flanges, and the first connecting tube, the filter tube and the second connecting tube are all fastened to each other through the connecting flanges, three dustproof nets are slidably connected to the inside of the filter tube, and fixing rings are fixedly sleeved on the outside of the dustproof nets, and the inner side walls of the filter tube and the second connecting tube are tightly fitted with the side walls of the fixing rings.

[0005] Preferably, a second limiting ring is fixedly installed on the inner side wall of the filter tube, and a first limiting ring is fixedly installed on the inner side of the second connecting tube, a connecting ring is provided on the left side wall of the dustproof net, and connecting rods are symmetrically fixedly installed on the right side wall of the connecting ring, and the connecting rods are all passed through the interior of the three fixing rings and fixedly connected to the fixing rings, and the distance from the left side of the connecting ring to the right side wall of the rightmost fixing ring matches the distance between the first limiting ring and the second limiting ring, so as to facilitate the stable installation of the position of the dustproof device.

[0006] Preferably, the first connecting tube, the filter tube and the second connecting tube are sealed and connected by sealing rings, and the sealing rings are fixedly installed on the side walls of the first connecting tube, the filter tube and the second connecting tube, so as to prevent internal air leakage of the pipeline after the first connecting tube, the filter tube and the second connecting tube are connected.

[0007] Preferably, the second connecting pipe is a metal hose, so that there is enough space when the filter tube is disassembled and assembled.

[0008] The utility model provides a hot air furnace for recovering heat from smoke pipes. It has the following beneficial effects:

[0009] 1. When using the hot air furnace that recovers heat from the smoke pipe, the filter tube can be disassembled and installed, and the dust screen can be conveniently taken out and cleaned. After the filter tube is taken out, it is convenient to clean the inside of the second connecting pipe;

[0010] 2. This kind of hot air furnace that recovers the heat of the smoke pipe, when using the hot air furnace that recovers the heat of the smoke pipe, a fixing ring is fixedly installed on the outside of the dust-proof filter screen. When the dust-proof filter screen is taken out, the fixing ring can conveniently scrape the inner side wall of the second connecting pipe, so that the smoke and dust attached to the side wall of the second connecting pipe can be scraped out. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the smoke inlet pipe of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the filter device of the utility model.

[0014] In the figure, 1-hot air stove, 2-smoke inlet pipe, 3-first connecting pipe, 4-filter pipe, 5-second connecting pipe, 6-connecting flange, 7-first limiting ring, 8-second limiting ring, 9-dust filter, 10-connecting ring, 11-connecting rod, 12-fixing ring. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Example 1

[0017] See also Figure 1-3 The utility model provides a hot blast stove for recovering heat from a smoke pipe, comprising a hot blast stove 1 and a filter tube 4, an air inlet pipe 2 is fixedly installed at the right end of the hot blast stove 1, a first connecting tube 3 is fixedly connected to the right end of the air inlet pipe 2, the filter tube 4 is arranged on the right side of the air inlet pipe 2, and a second connecting tube 5 is arranged on the right side of the filter tube 4, the outer side walls of the first connecting tube 3, the filter tube 4 and the second connecting tube 5 are all fixedly sleeved with a connecting flange 6, and the first connecting tube 3, the filter tube 4 and the second connecting tube 5 are all fastened to each other through the connecting flange 6, three dustproof nets 9 are slidably connected to the inside of the filter tube 4, and the outer sides of the dustproof nets 9 are fixedly sleeved with fixed The fixed ring 12, the filter tube 4 and the inner side walls of the second connecting tube 5 are tightly fitted with the side walls of the fixed ring 12. When installing the filter tube 4, the two ends of the filter tube 4 are tightly connected to the first connecting tube 3 and the second connecting tube 5 through the connecting flanges 6. At the same time, before installing the filter tube 4, the dust screen 9 is respectively connected to the inside of the filter tube 4 and the second connecting tube 5, and the fixed ring 12 is tightly fitted with the inner side walls of the filter tube 4 and the second connecting tube 5. When taking out the dust screen 9, the fixed ring 12 can symmetrically scrape the inner side walls of the filter tube 4 and the second connecting tube 5 respectively, so as to conveniently clean the inner side walls.

[0018] Example 2

[0019] In this embodiment, Figure 1-3As shown, a second limiting ring 8 is fixedly installed on the inner side wall of the filter tube 4, and a first limiting ring 7 is fixedly installed on the inner side of the second connecting tube 5, a connecting ring 10 is provided on the left side wall of the dustproof net 9, and a connecting rod 11 is symmetrically fixedly installed on the right side wall of the connecting ring 10, and the connecting rod 11 runs through the inside of the three fixing rings 12 and is fixedly connected to the fixing rings 12, and the distance between the left side of the connecting ring 10 and the right side wall of the rightmost fixing ring 12 matches the distance between the first limiting ring 7 and the second limiting ring 8. When the dustproof net 9 is installed, the connecting ring 10 is placed inside the filter tube 4, and against the right side wall of the second limiting ring 8, and then the right end of the dustproof device is connected to the inside of the second connecting tube 5, so that after the filter tube 4 is connected to the second connecting tube 5, the fixing ring 12 can be conveniently connected to the inside of the second connecting tube 5.

[0020] Example 3

[0021] In this embodiment, Figure 1-3 As shown, the first connecting tube 3, the filter tube 4 and the second connecting tube 5 are sealed and connected via sealing rings, and the sealing rings are fixedly installed on the side walls of the first connecting tube 3, the filter tube 4 and the second connecting tube 5, and the second connecting tube 5 is a metal hose.

[0022] It should be noted that in this embodiment, when using a hot blast furnace that recovers heat from the smoke pipe, Figure 1-3 As shown, when installing the filter tube 4, the two ends of the filter tube 4 are fastened to the first connecting tube 3 and the second connecting tube 5 respectively through the connecting flanges 6. At the same time, before installing the filter tube 4, the dustproof net 9 is connected to the inside of the filter tube 4 and the second connecting tube 5 respectively, and the connecting ring 10 is placed inside the filter tube 4 and against the right side wall of the second limiting ring 8, and then the right end of the dustproof device is connected to the inside of the second connecting tube 5. Therefore, after the filter tube 4 and the second connecting tube 5 are connected, the fixing ring 12 can be conveniently connected to the inside of the second connecting tube 5, and the fixing ring 12 can be tightly fitted with the internal side walls of the filter tube 4 and the second connecting tube 5 respectively. When taking out the dustproof net 9, the fixing ring 12 can symmetrically scrape the internal side walls of the filter tube 4 and the second connecting tube 5 respectively, so as to conveniently clean the internal side walls.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hot air stove for recovering heat from a smoke pipe, characterized in that: The invention comprises a hot air furnace (1) and a filter tube (4), wherein an air inlet tube (2) is fixedly installed at the right end of the hot air furnace (1), a first connecting tube (3) is fixedly connected to the right end of the air inlet tube (2), the filter tube (4) is arranged on the right side of the air inlet tube (2), and a second connecting tube (5) is arranged on the right side of the filter tube (4), the outer side walls of the first connecting tube (3), the filter tube (4) and the second connecting tube (5) are all fixedly sleeved with connecting flanges (6), and the first connecting tube (3), the filter tube (4) and the second connecting tube (5) are all tightly connected to each other through the connecting flanges (6), the interior of the filter tube (4) is slidably connected with three dustproof nets (9), the exterior of the dustproof nets (9) are all fixedly sleeved with fixing rings (12), and the inner side walls of the filter tube (4) and the second connecting tube (5) are tightly fitted with the side walls of the fixing rings (12).

2. A hot air stove for recovering heat from smoke pipes according to claim 1, characterized in that: A second limiting ring (8) is fixedly installed on the inner side wall of the filter tube (4), and a first limiting ring (7) is fixedly installed on the inner side of the second connecting tube (5). A connecting ring (10) is provided on the left side wall of the dustproof net (9), and a connecting rod (11) is symmetrically fixedly installed on the right side wall of the connecting ring (10). The connecting rod (11) passes through the inside of the three fixing rings (12) and is fixedly connected to the fixing rings (12). The distance between the left side of the connecting ring (10) and the right side wall of the rightmost fixing ring (12) matches the distance between the first limiting ring (7) and the second limiting ring (8).

3. A hot air stove for recovering heat from smoke pipes according to claim 1, characterized in that: The first connecting tube (3), the filter tube (4) and the second connecting tube (5) are all sealed and connected via sealing rings, and the sealing rings are fixedly mounted on the side walls of the first connecting tube (3), the filter tube (4) and the second connecting tube (5).

4. A hot air stove for recovering heat from smoke pipes according to claim 1, characterized in that: The second connecting pipe (5) is a metal hose.

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