Drying hot blast stove

Abstract

The utility model relates to the technical field of drying equipment, and discloses a drying hot blast stove which comprises a radiator, a combustor is arranged in the radiator and communicated with a combustion chamber arranged on one side of the radiator, a slag removal opening is formed in the combustion chamber, a grate plate is arranged in the combustion chamber corresponding to the slag removal opening, and a plurality of air outlets are formed in the grate plate. An ash cleaning opening is formed in the combustion chamber below the grid plate; a secondary air inlet is formed in the position, corresponding to the combustor, of the heat dissipation body. A fire observation opening is formed in the portion, above the combustor, of the heat dissipation body. A smoke exhaust pipeline is further arranged on the heat dissipation body in a communicating mode. According to the utility model, the furnace structure is optimally designed, so that the heat dissipation effect can be improved, the combustion efficiency is ensured, the heat loss is reduced, and the drying effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying equipment technical field especially relates to a drying hot blast furnace. BACKGROUND

[0002] Drying hot blast furnace usually produces hot blast through burning fuel and is used for drying operation of agricultural products, industrial materials and the like. However, the existing hot blast furnace has the following problems in use: interference exists between the heat dissipation area and the combustion area, resulting in problems of insufficient heat dissipation efficiency and low heat exchange efficiency, which affect the drying effect. In addition, the lack of reasonable secondary air inlet design causes the high-temperature flue gas after combustion to be not fully utilized, resulting in large heat loss. Therefore, there is an urgent need for a drying hot blast furnace with a clear structure, good heat dissipation effect, high combustion efficiency and the ability to ensure the drying effect. SUMMARY

[0003] The utility model discloses a drying hot blast furnace, through optimizing the design to the structure of furnace, can promote the heat dissipation effect, guarantee the combustion efficiency, reduce the loss of heat, guarantee the drying effect.

[0004] The utility model discloses the following technical scheme:

[0005] A drying hot blast furnace, comprising a heat dissipation body, a burner is arranged in the heat dissipation body, the burner is in communication with a combustion chamber arranged on one side of the heat dissipation body, a slag removal opening is arranged on the combustion chamber, a grate plate is arranged in the combustion chamber corresponding to the slag removal opening, and a dust removal opening is arranged on the combustion chamber below the grate plate; a secondary air inlet is formed on the heat dissipation body corresponding to the burner; an observation opening is arranged on the heat dissipation body above the burner; and an exhaust pipe is arranged on the heat dissipation body in communication.

[0006] Preferably, the combustion chamber is arranged in parallel on one side of the heat dissipation body.

[0007] Preferably, a feeding opening is arranged on the combustion chamber above the slag removal opening.

[0008] Preferably, heat dissipation fins are arranged on the outer side of the heat dissipation body.

[0009] Preferably, heat dissipation fins are arranged on the outer side of the combustion chamber.

[0010] Preferably, two grate plates are movably arranged in the combustion chamber, and an operating rod for controlling the swing of the grate plates is arranged outside the combustion chamber.

[0011] Preferably, the exhaust pipe is arranged on the side of the heat dissipation body away from the combustion chamber.

[0012] Preferably, the heat dissipating body is provided with a dust cleaning pipe on the side away from the combustion chamber, the dust cleaning pipe is provided with an openable dust cleaning hole on one side, and the smoke exhaust pipe is arranged on the dust cleaning pipe.

[0013] Preferably, reinforcing rods are arranged in the heat dissipating body and the combustion chamber.

[0014] Preferably, the burner is of a through structure from top to bottom, and the side walls on both sides are provided with air inlet holes in the secondary air inlet.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses set up the combustion chamber in the heat dissipating body one side, can effectively reduce the interference between the combustion chamber and the heat dissipating body, promote the heat dissipation effect, guarantee the combustion efficiency, and simultaneously, the size of the heat dissipating body can be increased according to the need, the heat dissipation efficiency is improved, and the convenience of use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the embodiment of the application;

[0017] Figure 2 It is the structural schematic diagram of the burner of the embodiment of the application;

[0018] Figure 3 It is the internal structure schematic diagram of the embodiment of the application;

[0019] Figure 4 It is the top view of the grate plate of the embodiment of the application. DETAILED DESCRIPTION

[0020] The utility model will be described clearly and completely in combination with the drawings and examples as follows:

[0021] As Figures 1 to 4 shown, the utility model discloses a kind of drying hot blast furnace, including heat dissipating body 1, heat dissipating body 1 inside is hollow structure, for the heat generated by fuel combustion provides flow space, heat dissipating body 1 is provided with burner 2, burner 2 is as Figure 2The upper and lower through structure is shown, the side wall of both sides is provided with air inlet 3, for secondary air inlet, for the flue gas generated in the fuel combustion process to provide combustion-supporting, so that the solid small particles forming the flue gas can be burned, further improve the utilization rate of heat; the burner 2 is communicated with the combustion chamber 4 arranged on one side of the heat sink 1, the combustion chamber 4 is arranged in parallel on one side of the heat sink 1, the combustion chamber 4 is provided with a slag removal port 5, the combustion chamber 4 in the combustion chamber 4 corresponding to the slag removal port 5 is provided with a grate plate 6, the grate plate 6 is used for supporting the fuel, the combustion chamber 4 below the grate plate 6 is provided with a dust removal port 7, the dust removal port 7 corresponds to the combustion chamber 4 in the combustion chamber 4 to form a dust storage cavity, which is used for receiving the ash falling from the grate plate 6 after the fuel is burned, and finally the ash is cleaned out through the dust removal port 7; the heat sink 1 is provided with a secondary air inlet 8 at the position corresponding to the burner 2; the heat sink 1 above the burner 2 is provided with a fire observation port 9, the top end of the burner 2 is higher than the top end of the secondary air inlet 8, but located below the heat sink 1 of the fire observation port 9; the bottom of the burner 2 is communicated with the combustion chamber 4, which is located below the bottom of the secondary air inlet 8, but above the grate plate 6; the air inlet 3 on both sides of the burner 2 is located in the secondary air inlet 8, which is used for the timely input of external airflow during the combustion process; the heat sink 1 is also provided with an exhaust pipe 10, which is used for the discharge of flue gas generated after the fuel is burned.

[0022] In addition, the combustion chamber 4 above the slag removal port 5 in the embodiment is provided with a feeding port 11, that is, the combustion chamber 4 is provided with the feeding port 11, the slag removal port 5 and the dust removal port 7 from top to bottom, the additional feeding port 11 can avoid the risk of being burned due to direct feeding through the slag removal port 5, and at the same time, the heat loss during the feeding process is also reduced. In addition, the heat sink 1 and the combustion chamber 4 are both provided with heat dissipation fins 12 outside to improve the heat dissipation effect and ensure the drying efficiency.

[0023] Further, the grate plate 6 is movably arranged in the combustion chamber 4, and the operation rod 13 for controlling the swing of the grate plate 6 is arranged outside the combustion chamber 4. By pulling the operation rod 13 outside the combustion chamber 4, the two grate plates 6 can be swung, so that the ash residues remaining on the grate plate 6 can be shaken off into the ash storage cavity below, so as to be conveniently cleaned through the dust removal port 7 subsequently. Specifically, the two ends of the grate plate 6 are rotatably arranged in the combustion chamber 4 through the rotating shaft 14, the rotating shaft 14 located on the outside extends out of the combustion chamber 4, and the swing piece 15 is arranged outside the rotating shaft 14. The swing piece 15 is hingedly connected with the operation rod 13, and when the operation rod 13 is pushed, the swing piece 15 moves, thereby controlling the two grate plates 6 to rotate along the rotating shaft 14, so that the ash residues can be smoothly dropped.

[0024] Further, the smoke exhaust pipe 10 is arranged at the side of the heat sink 1 away from the combustion chamber 4, so as to prolong the travel of the heat generated by the fuel combustion in the heat sink 1, ensure the full use of the heat, and ensure the heat dissipation effect. The heat sink 1 is provided with a dust removal pipe 16 at the side away from the combustion chamber 4, the dust removal pipe 16 is provided with an openable and closable dust removal hole at one side, and the smoke exhaust pipe 10 is arranged on the dust removal pipe 16. Since the stove is not fully combusted when it is just ignited, part of the soot is generated, and the dust removal pipe 16 is arranged to facilitate the regular cleaning of the soot, so as to ensure the smoothness of the subsequent stove work.

[0025] In addition, the heat sink 1 and the combustion chamber 4 are provided with reinforcing rods 17, which are used for reinforcing the heat sink 1 and the combustion chamber 4, and ensure the structural strength, and the reinforcing rods 17 are arranged along the inner walls of the heat sink 1 and the combustion chamber 4. When the heat sink 1 and the combustion chamber 4 are too large, a reinforcing rod 17 can be additionally arranged between the two opposite reinforcing rods 17, so as to further improve the structural strength of the stove.

[0026] In use, first, the fuel added on the grate plate 6 is ignited, the heat generated by the fuel combustion flows into the heat sink 1 through the burner 2, the heat is dissipated and spread outward through the heat sink 1 to complete the drying work of the articles; finally, the generated flue gas is discharged through the smoke exhaust pipe 10; the secondary air inlet 8 is kept open during the combustion process, so that the external airflow enters the burner 2 to provide combustion-supporting for the flue gas generated by the combustion, and reduce the heat loss; the charging port 11, the slag removal port 5, the dust removal port 7 and the fire observation port 9 are in a closed state, so as to prevent the heat loss; the dust removal port 7 can be provided with a wind baffle capable of adjusting the opening degree, which is used for adjusting the opening degree of the dust removal port 7, so as to realize the adjustment of the primary air volume, and provide assistance for the combustion of the fuel.

Claims

1. A drying hot air furnace, characterized in that: The device includes a heat sink, a burner is installed inside the heat sink, the burner is connected to a combustion chamber located on one side of the heat sink, a slag removal port is provided on the combustion chamber, a grate is provided in the combustion chamber corresponding to the slag removal port, and an ash removal port is provided on the combustion chamber below the grate; a secondary air inlet is provided on the heat sink at a position corresponding to the burner; a fire observation port is provided on the heat sink above the burner; and a smoke exhaust pipe is also connected to the heat sink.

2. The drying hot air furnace according to claim 1, characterized in that: The combustion chamber is arranged parallel to one side of the heat sink.

3. The drying hot air furnace according to claim 2, characterized in that: A feeding port is provided on the combustion chamber above the slag removal port.

4. The drying hot air furnace according to claim 1, characterized in that: The heat sink is provided with heat sink fins on the outside.

5. The drying hot air furnace according to claim 1, characterized in that: The combustion chamber is equipped with heat sinks on its outer side.

6. The drying hot air furnace according to claim 1, characterized in that: Two grates are movably arranged in the combustion chamber, and an operating rod for controlling the swing of the grates is provided outside the combustion chamber.

7. The drying hot air furnace according to claim 1, characterized in that: The exhaust duct is located on the side of the heat sink away from the combustion chamber.

8. The drying hot air furnace according to claim 7, characterized in that: A cleaning pipe is provided on the side of the heat sink away from the combustion chamber, and an openable and closable cleaning hole is provided on one side of the cleaning pipe. The exhaust pipe is provided on the cleaning pipe.

9. The drying hot air furnace according to claim 1, characterized in that: Reinforcing rods are provided in both the heat dissipation body and the combustion chamber.

10. The drying hot air furnace according to claim 1, characterized in that: The burner has a through-hole structure, with air inlets on both sides of its sidewalls, and the air inlets are located inside the secondary air inlet.

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