Open type dust cleaning hot blast stove

Abstract

The utility model discloses an open-type dust-cleaning hot-blast stove, which comprises a cylindrical stove body, a hearth arranged at the lower part of the stove body, a stove door and an impurity-removing door arranged on the wall of the hearth, a support frame arranged in the stove body, a smoke outlet arranged at the top of the stove body, a cylindrical upper combustion chamber communicated with the top of the hearth, an upper hot-blast chamber and an upper fire chamber separated by a partition plate arranged at the top of the upper combustion chamber, the outer side of the hearth is provided with a flame path chamber and a lower hot air chamber which are separated by a partition plate; a barrel of the upper combustion chamber is sleeved with multiple layers of cylindrical heat conduction plates, and a hot air duct III, a flame path I, a hot air duct II, a flame path II and a hot air duct I are sequentially formed from inside to outside. Multi-layer operation is adopted, the operation distance of smoke and air is increased, the heat exchange time is correspondingly increased, the heat efficiency is improved, meanwhile, the annular furnace belt is arranged on the furnace body, and accumulated dust in the flame path chamber can be conveniently removed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to boiler, especially relate to an open dust cleaning hot blast stove. BACKGROUND

[0002] Hot blast stove is a thermal power machine, and is widely used in the vast rural and urban areas in China, and has become a replacement product of electric heat source and traditional steam power heat source in many industries. At present, the hot blast stoves used in rural areas mainly burn coal, and in most cases, it is difficult to clean dust and cannot be cleaned. SUMMARY

[0003] In view of the above problems, the utility model provides an open dust cleaning hot blast stove.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] An open dust cleaning hot blast stove, which comprises a cylindrical furnace body, a hearth is arranged at the lower part of the furnace body, a furnace door and a de-impurity door are arranged on the hearth wall, a support frame is arranged in the furnace body, a smoke outlet is arranged at the top of the furnace body, the top of the hearth is communicated with a cylindrical upper combustion chamber, the top of the upper combustion chamber is separated into an upper hot blast chamber and an upper fire chamber by a partition plate, the smoke outlet is communicated with the upper fire chamber, a flue chamber and a lower hot blast chamber are separated by the partition plate outside the hearth;

[0006] A plurality of cylindrical heat-conducting plates are sleeved on the cylinder of the upper combustion chamber, and hot blast channels III, flues I, hot blast channels II, flues II and hot blast channels I are sequentially formed from inside to outside, the top of the flues I is closed by the heat-conducting plates, the bottom of the hot blast channels II and the bottom of the hot blast channels I are sealed by the heat-conducting plates, the upper part of the flues I is communicated with the upper part of the upper combustion chamber through a flue connecting pipe, the lower end of the flues I is communicated with the flue chamber, the lower end of the flues II is communicated with the flue chamber, and the upper end of the flues II is communicated with the upper fire chamber;

[0007] An air inlet is arranged at the upper part of the furnace body, the air inlet is communicated with the upper part of the hot blast channels I, the lower part of the hot blast channels I is communicated with the lower part of the hot blast channels II through a hot blast channel connecting pipe, the upper end of the hot blast channels II is communicated with the upper hot blast chamber, the upper end of the hot blast channels III is communicated with the upper hot blast chamber, the lower end of the hot blast channels III is communicated with the lower hot blast chamber, a hot blast outlet is arranged on the furnace body, and the hot blast outlet is communicated with the lower hot blast chamber;

[0008] An annular dust cleaning port is arranged on the furnace body at a position corresponding to the lower hot blast chamber, and an annular furnace waist belt is arranged on the furnace body.

[0009] The furnace waist belt is arranged on the furnace body by fastening bolts.

[0010] The hot blast outlet is not less than two.

[0011] The flue connecting pipe is at least two, and is symmetrically distributed around the axis of the upper combustion chamber.

[0012] There are at least two hot air duct connecting pipes, and they are symmetrically distributed with the axis of the upper combustion chamber as the center.

[0013] This utility model adopts multi-layer operation, which increases the running distance of flue gas and air, and correspondingly increases the heat exchange time, thereby improving thermal efficiency. At the same time, a ring-shaped furnace waist belt is installed on the furnace body to facilitate the removal of dust accumulation in the fire chamber. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the furnace waist belt structure.

[0016] In the diagram: 1. Smoke outlet, 2. Air inlet, 3. Hot air duct I, 4. Fire duct connecting pipe, 5. Upper combustion chamber, 6. Hot air duct II, 7. Fire duct II, 8. Hot air duct connecting pipe, 9. Fire duct I, 10. Hot air duct III, 11. Fire duct chamber, 12. Furnace waist belt, 13. Lower hot air chamber, 14. Furnace, 15. Hot air outlet, 16. Fastening bolts, 17. Upper hot air chamber, 18. Upper combustion chamber, 19. Support frame. Detailed Implementation

[0017] like Figure 1 , Figure 2 As shown, an open-type dust removal hot air furnace includes a cylindrical furnace body, a furnace chamber 14 at the bottom of the furnace body, a furnace door and a dust removal door on the furnace chamber wall, a support frame 19 inside the furnace body, a smoke outlet 1 at the top of the furnace body, the top of the furnace chamber 14 communicating with a cylindrical upper combustion chamber 5, the top of the upper combustion chamber 5 having an upper hot air chamber 17 and an upper fire chamber 18 separated by a partition, the smoke outlet 1 communicating with the upper fire chamber 18, and a fire passage chamber 11 and a lower hot air chamber 13 separated by a partition on the outside of the furnace chamber 14.

[0018] Multiple cylindrical heat-conducting plates are fitted around the outer shell of the upper combustion chamber 5, forming hot air duct Ⅲ10, fire duct Ⅰ9, hot air duct Ⅱ6, fire duct Ⅱ7 and hot air duct Ⅰ3 from the inside out. The top of fire duct Ⅰ9 is sealed by heat-conducting plates, and the bottom of hot air duct Ⅱ6 and the bottom of hot air duct Ⅰ3 are also sealed by heat-conducting plates. The upper part of fire duct Ⅰ9 is connected to the upper part of the upper combustion chamber 5 through fire duct connecting pipe 4. The lower end of fire duct Ⅰ9 is connected to fire duct chamber 11, the lower end of fire duct Ⅱ7 is connected to fire duct chamber 11, and the upper end of fire duct Ⅱ7 is connected to upper fire chamber 18.

[0019] The upper part of the furnace body has an air inlet 2, which is connected to the upper part of the hot air duct I3. The lower part of the hot air duct I3 is connected to the lower part of the hot air duct II6 through the hot air duct connecting pipe 8. The upper end of the hot air duct II6 is connected to the upper hot air chamber 17. The upper end of the hot air duct III10 is connected to the upper hot air chamber 17. The lower end of the hot air duct III10 is connected to the lower hot air chamber 13. A hot air outlet 15 is provided on the furnace body, which is connected to the lower hot air chamber 13.

[0020] A plurality of dust outlets are arranged on the furnace body at positions corresponding to the upper and lower hot air chambers 13, and a ring-shaped furnace waist belt 12 is arranged on the furnace body.

[0021] The furnace waist belt 12 is arranged on the furnace body by fastening bolts 16.

[0022] The hot air outlet 15 is not less than two.

[0023] The fire channel connecting pipes 4 are at least two and symmetrically distributed with the axis of the upper combustion chamber 5 as the center.

[0024] The hot air channel connecting pipes 8 are at least two and symmetrically distributed with the axis of the upper combustion chamber 5 as the center.

[0025] The working process of the utility model is as follows: the fire of the furnace hearth 14 rises into the upper combustion chamber 5, enters the fire channel I 9 through the fire channel connecting pipe 4, then enters the fire channel chamber 11, and then enters the upper fire chamber 18 from the fire channel II 7 and is discharged from the smoke outlet 1. The smoke and dust generated by combustion falls into the fire channel chamber 11, and the furnace waist belt 12 is opened to remove the dust. The cold air enters the hot air channel I 3 from the air inlet 2, enters the hot air channel II 6 through the hot air channel connecting pipe 8, then enters the hot air channel III 10, and is discharged from the hot air outlet 15.

[0026] The utility model adopts multi-layer operation, increases the running distance of the flue gas and air, correspondingly increases the heat exchange time, improves the thermal efficiency, and simultaneously arranges the ring-shaped furnace waist belt on the furnace body, which facilitates the removal of the dust in the fire channel chamber.

Claims

1. An open-type dust removal hot air furnace, comprising a cylindrical furnace body, a furnace chamber (14) at the bottom of the furnace body, a furnace door and a dust removal door on the furnace chamber wall, a supporting frame (19) inside the furnace body, and a smoke outlet (1) at the top of the furnace body, characterized in that: The top of the furnace (14) is connected to the cylindrical upper combustion chamber (5). The top of the upper combustion chamber (5) has an upper hot air chamber (17) and an upper fire chamber (18) separated by a partition. The flue gas outlet (1) is connected to the upper fire chamber (18). The outside of the furnace (14) has a fire channel chamber (11) and a lower hot air chamber (13) separated by a partition. The upper combustion chamber (5) is fitted with multiple cylindrical heat-conducting plates, forming hot air duct Ⅲ (10), fire duct Ⅰ (9), hot air duct Ⅱ (6), fire duct Ⅱ (7) and hot air duct Ⅰ (3) from the inside out. The top of fire duct Ⅰ (9) is sealed by heat-conducting plates. The bottom of hot air duct Ⅱ (6) and the bottom of hot air duct Ⅰ (3) are sealed by heat-conducting plates. The upper part of fire duct Ⅰ (9) is connected to the upper part of the upper combustion chamber (5) through fire duct connecting pipe (4). The lower end of fire duct Ⅰ (9) is connected to fire duct chamber (11). The lower end of fire duct Ⅱ (7) is connected to fire duct chamber (11). The upper end of fire duct Ⅱ (7) is connected to upper fire chamber (18). The upper part of the furnace body has an air inlet (2), which is connected to the upper part of the hot air duct I (3). The lower part of the hot air duct I (3) is connected to the lower part of the hot air duct II (6) through the hot air duct connecting pipe (8). The upper end of the hot air duct II (6) is connected to the upper hot air chamber (17). The upper end of the hot air duct III (10) is connected to the upper hot air chamber (17). The lower end of the hot air duct III (10) is connected to the lower hot air chamber (13). A hot air outlet (15) is provided on the furnace body, which is connected to the lower hot air chamber (13). An annular dust removal port is provided at the position corresponding to the upper and lower hot air chambers (13) on the furnace body, and an annular furnace waist belt (12) is installed on the furnace body accordingly.

2. The open-type dust-removing hot air furnace as described in claim 1, characterized in that: The furnace waist belt (12) is mounted on the furnace body by fastening bolts (16).

3. The open-type dust-removing hot air furnace as described in claim 1, characterized in that: There are at least two hot air outlets (15).

4. The open-type dust-removing hot air furnace as described in claim 1, characterized in that: There are at least two fire channel connecting pipes (4), and they are symmetrically distributed with the axis of the combustion chamber (5) as the center.

5. The open-type dust-removing hot air furnace as described in claim 1, characterized in that: There are at least two hot air duct connecting pipes (8), and they are symmetrically distributed with the axis of the combustion chamber (5) as the center.

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