Hot blast stove for recovering heat in dryer

Abstract

The utility model belongs to the technical field of dryer heat recovery, and particularly relates to a hot blast stove for recovering heat inside a dryer, which comprises a dryer and a mounting box, the upper end of the dryer is fixedly communicated with a smoke exhaust pipe, and a connecting device is arranged outside the smoke exhaust pipe. And the connecting device comprises a mounting ring, a connecting ring, two inserting rods, two limiting screw rods and two limiting nuts. According to the hot blast stove for recycling the heat in the dryer, smoke generated when the dryer works can be exhausted from a smoke exhaust pipe, then the smoke enters a sliding insertion barrel and a connecting pipe and then enters a mounting box, impurities in the smoke are filtered through a filter plate at the moment, heat in the smoke is subjected to heat exchange through a heat exchanger, and then the heat is transmitted to the hot blast stove through the mounting pipe; when the filter plate is not used at ordinary times, the sliding insertion cylinder is taken down from the smoke outlet, the limiting screw rod and the limiting nut are taken down, then the insertion rod is moved out of the connecting ring, and when the filter plate needs to be cleaned, the threaded rod is taken down from the insertion block.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery of dryers, in particular to a hot air furnace that recovers internal heat of a dryer. Background Art

[0002] For example, in a heat recovery device for a dryer disclosed on the Chinese Patent Network (application number: 202020484690.3), when recovering heat, the internal heat is isolated from the outside world to a certain extent so that the heat will not be lost too much, and then the heat is recycled to save a certain amount of thermal energy. However, the device can only recycle the heat in the dryer and cannot transfer the heat to other objects for utilization, which has certain limitations. Utility Model Content

[0003] Based on the relatively limited technical problems of the existing heat recovery devices for dryers, the utility model proposes a hot air furnace for recovering the internal heat of the dryer.

[0004] The utility model proposes a hot air furnace for recovering internal heat of a dryer, comprising a dryer and an installation box, wherein the upper end of the dryer is fixedly connected with a smoke exhaust pipe, and a connecting device is arranged on the outside of the smoke exhaust pipe, wherein the connecting device comprises a mounting ring, a connecting ring, two insertion rods, two limiting screws and two limiting nuts, the insertion rod is horizontally inserted into the connecting ring, the limiting screw passes through the inside of the insertion rod so that the insertion rod cannot move horizontally, and the limiting nut is sleeved outside the limiting screw so that the limiting screw cannot move up and down.

[0005] Preferably, the mounting ring is fixedly mounted on the outer surface of the smoke exhaust pipe, the connecting ring is fixedly mounted on the upper surface of the mounting ring, the upper outer surface of the smoke exhaust pipe is slidably connected with a sliding insert, and the lower inner surface of the sliding insert is slidably connected to the outer surface of the connecting ring.

[0006] Through the above technical solution, the connecting ring is installed on the mounting ring and maintained outside the smoke exhaust pipe, and the sliding insert is sleeved on the upper end of the smoke exhaust pipe, so that the smoke exhausted from the smoke exhaust pipe can enter the sliding insert.

[0007] Preferably, the two insertion rods are both slidably inserted in the interior of the sliding insert cylinder, the two insertion rods are horizontally symmetrically distributed with the axis of the sliding insert cylinder as the symmetrical center, the front end surface of the insertion rod is slidably inserted in the interior of the connecting ring, the two limit screws are both slidably inserted in the interior of the insertion rod, the upper surface of the insertion rod is fixedly installed with a limit plate, the limit plate is slidably inserted in the interior of the sliding insert cylinder, the interior of the sliding insert cylinder is fixedly installed with a limit rod, and the outer surface of the limit rod is slidably connected to the interior of the limit plate.

[0008] Through the above technical solution, the insertion rod is inserted into the sliding insertion tube, so that the sliding insertion tube and the connecting ring can remain relatively stable, and the limiting screw is inserted into the insertion rod to limit the movement of the insertion rod.

[0009] Preferably, the two limit nuts are respectively threadedly connected to the outer surfaces of the two limit screws, a fixing plate is fixedly installed on the outer surface of the mounting ring, the interior of the fixing plate is threadedly connected to the outer surface of the limit screw, and the outer surface of the sliding insert is fixedly connected to a connecting pipe.

[0010] Through the above technical solution, the limiting nut is installed on the limiting screw, so that the limiting screw will not be easily separated from the fixing plate and the insertion rod.

[0011] Preferably, an installation box is fixedly installed on the upper surface of the installation box, an insertion block is slidably inserted into the upper part of the installation box, the outer surface of the connecting pipe is fixedly connected to the interior of the insertion block, and threaded rods are threadedly connected to the left and right sides of the insertion block, and the two threaded rods are horizontally symmetrically distributed with the axis of the insertion block as the center of symmetry, and the threaded rods pass through the interior of the insertion block and are connected to the internal threads of the installation box.

[0012] Through the above technical solution, the threaded rod passes through the inside of the plug block and is connected to the installation box, so that the plug block is stably stuck on the upper part of the installation box, allowing the smoke in the connecting pipe to be transmitted to the installation box.

[0013] Preferably, a filter plate is fixedly installed inside the installation box, a connecting pipe is fixedly connected inside the lower end of the installation box, a heat exchanger is fixedly installed on the inner upper part of the installation box, the upper end of the heat exchanger is fixedly connected to the lower end of the connecting pipe, the lower end of the heat exchanger is fixedly connected to the installation pipe, a hot air furnace is fixedly installed on the right end of the installation box, and the hot air furnace is fixedly connected to the installation pipe.

[0014] Through the above technical solution, the filter plate can filter impurities in the flue gas, and the heat exchanger can exchange heat in the flue gas, thereby allowing the hot air furnace to be utilized.

[0015] The beneficial effects of the present invention are:

[0016] By setting a connecting device, when the internal heat of the dryer is recovered and utilized, the smoke generated when the dryer is working will be discharged from the smoke exhaust pipe, and then the smoke will enter the sliding plug cylinder and the connecting pipe, and then enter the installation box. At this time, the filter plate will filter the impurities in the smoke, and the heat exchanger will exchange the heat in the smoke, and then transfer it to the hot air furnace through the installation pipe, so that the hot air furnace can be utilized. When not in use, remove the sliding plug cylinder from the smoke exhaust port, remove the limit screw and the limit nut, and then move the plug rod out of the connecting ring. When the filter plate needs to be cleaned, remove the threaded rod from the plug block. In this way, the heat of the dryer can be recovered to other objects for utilization, thereby ensuring that the heat recovery of the dryer is not too limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a hot air furnace for recovering heat inside a dryer proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of a sliding insert structure of a hot air furnace for recovering heat inside a dryer proposed by the utility model;

[0019] Figure 3 This is a cross-sectional view of the installation box structure of a hot air furnace for recovering internal heat of a dryer proposed by the utility model.

[0020] In the figure: 1, dryer; 2, installation box; 21, installation box; 22, plug block; 23, threaded rod; 24, filter plate; 25, connecting pipe; 26, heat exchanger; 27, installation pipe; 28, hot air furnace; 3, exhaust pipe; 31, sliding plug; 311, limit rod; 32, connecting pipe; 4, installation ring; 41, fixing plate; 5, connecting ring; 6, plug rod; 61, limit plate; 7, limit screw; 8, limit nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 3 A hot air furnace for recovering heat inside a dryer comprises a dryer 1 and an installation box 2. The upper end of the dryer 1 is fixedly connected with a smoke exhaust pipe 3. In order to ensure that the smoke in the smoke exhaust pipe 3 can be transmitted to the installation box 2, a connecting device is arranged on the outside of the smoke exhaust pipe 3. The connecting device comprises a mounting ring 4, a connecting ring 5, two plug rods 6, two limit screws 7 and two limit nuts 8. The plug rod 6 is horizontally inserted into the connecting ring 5, and the limit screw 7 passes through the inside of the plug rod 6 so that the plug rod 6 cannot move horizontally. The limit nut 8 is sleeved on the outside of the limit screw 7 so that the limit screw 7 cannot move up and down.

[0023] In order to ensure that the smoke exhausted from the smoke exhaust pipe 3 can enter the sliding insert 31, the mounting ring 4 is fixedly mounted on the outer surface of the smoke exhaust pipe 3, and the connecting ring 5 is fixedly mounted on the upper surface of the mounting ring 4. The upper outer surface of the smoke exhaust pipe 3 is slidably connected with the sliding insert 31, and the lower inner surface of the sliding insert 31 is slidably connected to the outer surface of the connecting ring 5. The connecting ring 5 is mounted on the mounting ring 4 and maintained outside the smoke exhaust pipe 3. The sliding insert 31 is sleeved on the upper end of the smoke exhaust pipe 3, so that the smoke exhausted from the smoke exhaust pipe 3 can enter the sliding insert 31.

[0024] In order to ensure that the sliding insert cylinder 31 and the connecting ring 5 can remain relatively stable, the two insert rods 6 are both slidably inserted into the inside of the sliding insert cylinder 31, and the two insert rods 6 are horizontally symmetrically distributed with the axis of the sliding insert cylinder 31 as the symmetrical center. The front end surface of the insert rod 6 is slidably inserted into the inside of the connecting ring 5, and the two limit screws 7 are both slidably inserted into the inside of the insert rod 6. The upper surface of the insert rod 6 is fixedly installed with a limit plate 61, and the limit plate 61 is slidably inserted into the inside of the sliding insert cylinder 31. The inside of the sliding insert cylinder 31 is fixedly installed with a limit rod 311, and the outer surface of the limit rod 311 is slidably connected to the inside of the limit plate 61. The insert rod 6 is inserted into the sliding insert cylinder 31, so that the sliding insert cylinder 31 and the connecting ring 5 can remain relatively stable, and the limit screw 7 is inserted into the insert rod 6 to limit the movement of the insert rod 6.

[0025] In order to ensure that the limit screw 7 will not easily detach from the fixing plate 41 and the insertion rod 6, the two limit nuts 8 are respectively threadedly connected to the outer surfaces of the two limit screws 7, the outer surface of the mounting ring 4 is fixedly mounted with the fixing plate 41, the interior of the fixing plate 41 is threadedly connected to the outer surface of the limit screw 7, the outer surface of the sliding insert 31 is fixedly connected with the connecting pipe 32, and the limit nut 8 is installed on the limit screw 7, so that the limit screw 7 will not easily detach from the fixing plate 41 and the insertion rod 6.

[0026] In order to facilitate the transfer of smoke in the connecting pipe 32 to the installation box 21, the installation box 21 is fixedly installed on the upper surface of the installation box 2, and the upper part of the installation box 21 is slidably plugged with a plug block 22. The outer surface of the connecting pipe 32 is fixedly connected to the interior of the plug block 22, and the left and right sides of the plug block 22 are both threadedly connected with threaded rods 23. The two threaded rods 23 are horizontally symmetrically distributed with the axis of the plug block 22 as the symmetry center. The threaded rod 23 passes through the interior of the plug block 22 and is connected to the internal thread of the installation box 21. The threaded rod 23 passes through the interior of the plug block 22 and is connected to the installation box 21, so that the plug block 22 is stably stuck on the upper part of the installation box 21, so that the smoke in the connecting pipe 32 can be transferred to the installation box 21.

[0027] In order to facilitate the filtering of impurities in the flue gas, a filter plate 24 is fixedly installed inside the installation box 21, and a connecting pipe 25 is fixedly connected inside the lower end of the installation box 21. A heat exchanger 26 is fixedly installed on the upper inner side of the installation box 2, and the upper end of the heat exchanger 26 is fixedly connected to the lower end of the connecting pipe 32, and the lower end of the heat exchanger 26 is fixedly connected to the installation pipe 27. A hot air furnace 28 is fixedly installed on the right end of the installation box 2, and the hot air furnace 28 is fixedly connected to the installation pipe 27. The filter plate 24 can filter impurities in the flue gas, and the heat exchanger 26 can exchange heat in the flue gas, so that the hot air furnace 28 can be utilized.

[0028] By setting a connection device, when the heat inside the dryer 1 is recovered and utilized, the smoke generated when the dryer 1 is working will be discharged from the smoke exhaust pipe 3, and the smoke will then enter the sliding plug cylinder 31 and the connecting pipe 32, and then enter the installation box 21. At this time, the filter plate 24 will filter the impurities in the smoke, and the heat exchanger 26 will exchange the heat in the smoke, and then transfer it to the hot air stove 28 through the installation pipe 27, so that the hot air stove 28 can be utilized. When not in use, the sliding plug cylinder 31 is removed from the smoke exhaust port, the limiting screw 7 and the limiting nut 8 are removed, and then the plug rod 6 is removed from the connection ring 5. When the filter plate 24 needs to be cleaned, the threaded rod 23 is removed from the plug block 22. In this way, the heat of the dryer 1 can be recovered to other objects for utilization, thereby achieving the effect of ensuring that the heat recovery of the dryer 1 is not too limited.

[0029] Working principle: When the internal heat of the dryer 1 is recycled, the smoke generated when the dryer 1 is working will be discharged from the smoke exhaust pipe 3, and then the smoke will enter the sliding plug 31 and the connecting pipe 32, and then enter the installation box 21. At this time, the filter plate 24 will filter the impurities in the smoke, and the heat exchanger 26 will exchange the heat in the smoke, and then transfer it to the hot air furnace 28 through the installation pipe 27, so that the hot air furnace 28 can be used. When not in use, remove the sliding plug 31 from the smoke exhaust port, remove the limiting screw 7 and the limiting nut 8, and then move the plug 6 out of the connecting ring 5. When the filter plate 24 needs to be cleaned, remove the threaded rod 23 from the plug block 22.

[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A hot air furnace for recovering heat inside a dryer, comprising a dryer (1) and an installation box (2), characterized in that: The upper end of the dryer (1) is fixedly connected to a smoke exhaust pipe (3), and a connecting device is arranged outside the smoke exhaust pipe (3), and the connecting device comprises a mounting ring (4), a connecting ring (5), two insertion rods (6), two limiting screws (7) and two limiting nuts (8). The insertion rod (6) is horizontally inserted into the connecting ring (5), and the limiting screw (7) passes through the inside of the insertion rod (6) so that the insertion rod (6) cannot move horizontally, and the limiting nut (8) is sleeved outside the limiting screw (7) so that the limiting screw (7) cannot move up and down.

2. A hot air furnace for recovering heat inside a dryer according to claim 1, characterized in that: The mounting ring (4) is fixedly mounted on the outer surface of the smoke exhaust pipe (3), the connecting ring (5) is fixedly mounted on the upper surface of the mounting ring (4), the upper outer surface of the smoke exhaust pipe (3) is slidably connected to a sliding insert (31), and the lower inner surface of the sliding insert (31) is slidably connected to the outer surface of the connecting ring (5).

3. A hot air furnace for recovering heat inside a dryer according to claim 2, characterized in that: The two insertion rods (6) are both slidably inserted in the interior of the sliding insertion tube (31); the two insertion rods (6) are horizontally symmetrically distributed with the axis of the sliding insertion tube (31) as the symmetric center; the front end surface of the insertion rod (6) is slidably inserted in the interior of the connecting ring (5); the two limiting screws (7) are both slidably inserted in the interior of the insertion rod (6); a limiting plate (61) is fixedly installed on the upper surface of the insertion rod (6); the limiting plate (61) is slidably inserted in the interior of the sliding insertion tube (31); a limiting rod (311) is fixedly installed in the interior of the sliding insertion tube (31); the outer surface of the limiting rod (311) is slidably connected to the interior of the limiting plate (61).

4. A hot air furnace for recovering heat inside a dryer according to claim 2, characterized in that: The two limit nuts (8) are respectively threadedly connected to the outer surfaces of the two limit screws (7); a fixing plate (41) is fixedly installed on the outer surface of the mounting ring (4); the interior of the fixing plate (41) is threadedly connected to the outer surface of the limit screw (7); and the outer surface of the sliding insert (31) is fixedly connected to a connecting pipe (32).

5. A hot air furnace for recovering heat inside a dryer according to claim 4, characterized in that: The upper surface of the installation box (2) is fixedly mounted with an installation box (21), the upper part of the installation box (21) is slidably plugged with an insert block (22), the outer surface of the connecting pipe (32) is fixedly connected to the inside of the insert block (22), the left and right sides of the insert block (22) are both threadedly connected with threaded rods (23), the two threaded rods (23) are horizontally symmetrically distributed with the axis of the insert block (22) as the symmetry center, and the threaded rods (23) pass through the inside of the insert block (22) and are threadedly connected to the inside of the installation box (21).

6. A hot air furnace for recovering heat inside a dryer according to claim 5, characterized in that: A filter plate (24) is fixedly installed inside the installation box (21), a connecting pipe (25) is fixedly connected inside the lower end of the installation box (21), a heat exchanger (26) is fixedly installed on the upper inner part of the installation box (2), the upper end of the heat exchanger (26) is fixedly connected to the lower end of the connecting pipe (32), the lower end of the heat exchanger (26) is fixedly connected to the installation pipe (27), and a hot air furnace (28) is fixedly installed on the right end of the installation box (2), and the hot air furnace (28) is fixedly connected to the installation pipe (27).

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