Jet hot blast stove

Abstract

The utility model relates to the technical field of hot-blast stoves and discloses a jet hot-blast stove which comprises a hot-blast stove body, and an exhaust port is formed in the upper end of the hot-blast stove body. The heat exchange tank is arranged on one side of the hot blast stove body, a connecting pipe is arranged between the heat exchange tank and the hot blast stove body, and the hot blast stove body communicates with the heat exchange tank through the connecting pipe; the heat exchange assembly is arranged between the heat exchange tank and the connecting pipe, the heat exchange assembly is used for exchanging heat, the heat exchange assembly comprises an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are arranged in the heat exchange tank and are arranged in parallel, the air inlet pipe is composed of a plurality of straight pipe bodies, the air outlet pipe is composed of a plurality of S-shaped pipe bodies, and the S-shaped pipe bodies are arranged in parallel. A second partition is arranged at the upper end of the gas outlet, the second partition is connected with the gas outlet through a fastener, exhausted gas mixtures containing heat such as smoke and the like are conveyed into the second partition, heat exchange is carried out on the gas mixtures and replacement liquid in the second partition through the heat exchange assembly, and resources are fully utilized.

Description

Technical Field

[0001] This utility model belongs to the field of hot air furnace technology, specifically, it relates to a jet hot air furnace. Background Technology

[0002] In the manufacturing process of compound fertilizer, both raw materials and semi-finished products contain some moisture. Directly manufacturing the finished product results in an excessively high moisture content, which can easily cause the effective components of the fertilizer to decompose and become ineffective during storage, thus hindering long-term preservation. To extend the shelf life of fertilizer, adding a drying step to the compound fertilizer manufacturing process is essential. During the drying process, a jet hot air furnace is used to provide heat energy to the dryer to dry the raw materials and semi-finished products.

[0003] A document with publication number (CN204006069U) discloses a convenient jet hot air furnace for compound fertilizer, including a combustion chamber. A frame is installed on the coal feeding side of the combustion chamber, and a hopper is installed on the frame. The bottom of the hopper is connected to the combustion chamber through an inclined downward feed pipe. A discharge valve is installed at the connection between the hopper and the feed pipe. An inclined upward track is installed on one side of the frame, and a coal-carrying car is installed on the track and slides along the track. The top of the track is a horizontal section, which is higher than the top of the hopper. A fixed pulley is installed at the top of the frame, and a pull rope is installed in the groove of the fixed pulley. One end of the pull rope is fixed to the coal-carrying car, and the other end is fixed to a rope winding reel. The rope winding reel is driven to rotate by a forward and reverse motor to wind and unwind the pull rope, so that the coal-carrying car slides on the track.

[0004] The above-mentioned device uses a hopper connected to the combustion chamber for coal feeding, which avoids operators from having direct close contact with the combustion chamber. By controlling the opening of the unloading valve, the coal in the hopper slides into the combustion chamber from the feed pipe, which can achieve continuous coal supply to the combustion chamber. Furthermore, a forward and reverse motor is used to drive the coal loading car from the ground to the top of the hopper to add coal into the hopper, which reduces the labor intensity of manual labor.

[0005] The aforementioned device adds coal to the device through mechanical feeding. However, in actual operation, the heat from the combustion of coal and the exhaust gas is not fully utilized and is instead emitted, resulting in the inefficient use of the heat from fuel combustion.

[0006] In view of this, this utility model is proposed. Utility Model Content

[0007] To solve the technical problem of fully utilizing fuel combustion, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A jet hot air furnace includes a hot air furnace body with an exhaust port at the upper end; a heat exchange tank disposed on one side of the hot air furnace body, with a connecting pipe connecting the hot air furnace body and the heat exchange tank; and a heat exchange assembly disposed between the heat exchange tank and the connecting pipe, the heat exchange assembly being used to displace heat, the heat exchange assembly including an inlet pipe and an outlet pipe, both of which are disposed inside the heat exchange tank and are arranged side by side.

[0009] In a preferred embodiment of the present invention, the air inlet pipe is composed of multiple straight tubular bodies, and the air outlet pipe is composed of multiple S-shaped tubular bodies.

[0010] In a preferred embodiment of the present invention, the upper end of the air intake pipe is provided with a first partition, the air intake pipe is fixedly connected to the first partition, and the upper end of the first partition is provided with an air inlet, which is fixedly connected to the first partition.

[0011] In a preferred embodiment of this utility model, the upper end of the air outlet pipe is provided with a second partition, the air outlet pipe is fixedly connected to the second partition, the upper end of the second partition is provided with an air outlet, and the air outlet is fixedly connected to the second partition.

[0012] In a preferred embodiment of this utility model, a frame is provided on the outside of the air inlet and the air outlet, and the air inlet and the air outlet are fixedly connected to the frame.

[0013] In a preferred embodiment of this utility model, the bottom ends of the air inlet pipe and the air outlet pipe are provided with dust accumulation areas, and both the air inlet pipe and the air outlet pipe are fixedly connected to the connecting plate.

[0014] In a preferred embodiment of this utility model, the bottom end of the connecting plate is provided with a dust accumulation area, and the connecting plate and the dust accumulation area are connected by fasteners.

[0015] In a preferred embodiment of this utility model, a second partition is provided at the upper end of the air outlet, and the second partition is connected to the air outlet by fasteners.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This jet hot air furnace sends a mixture of exhaust gas and other heat-containing gases into the furnace, where heat exchange components are installed and heat is exchanged with the displacement liquid inside, thus making full use of resources.

[0018] 2. In this jet hot air furnace, the inlet pipe exchanges heat with the displacement liquid in the heat exchange tank through multiple sets of straight tubular bodies. After passing through the ash accumulation zone, the gas enters the outlet pipe. At this time, the gas undergoes a secondary heat exchange with the displacement liquid in the heat exchange tank through multiple S-shaped tubes in the outlet pipe. The S-shaped tubes also increase the gas flow path and improve the displacement efficiency.

[0019] 3. In this jet hot air furnace, when the gas passes through the ash accumulation zone, the unburned particles inside are deposited in the ash accumulation zone, which avoids the continuous accumulation of unburned particles in the inlet and outlet pipes, which would reduce the gas flow. At the same time, the second partition on the outlet is used to filter the discharged gas, preventing the gas from being discharged directly and causing pollution to the external environment.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the heat exchange component structure of this utility model;

[0024] Figure 3 This is a schematic diagram showing the disassembled structure of the heat exchange component of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure between the connecting plate and the dust accumulation area of ​​this utility model;

[0026] Figure 5 This is a schematic diagram of the structure between the air inlet pipe and the air outlet pipe of this utility model.

[0027] In the diagram: 1. Hot air furnace body; 11. Heat exchange tank; 12. Connecting pipe; 2. Air inlet; 21. Air inlet pipe; 22. First zone; 3. Air outlet; 31. Air outlet pipe; 32. Second zone; 4. Ash accumulation zone; 41. Connecting plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] Please see Figure 1-5A jet hot blast stove includes a hot blast stove body 1, with an exhaust port at the upper end. The hot blast stove body 1 has been fully disclosed in publication number CN204006069U, titled "A Jet Hot Blast Stove for Compound Fertilizer with Convenient Coal Feeding," therefore the internal structure of the hot blast stove body 1 is not shown in the figures and will not be described further here. A heat exchange tank 11 is located on one side of the hot blast stove body 1, and a connecting pipe 12 connects the heat exchange tank 11 to the hot blast stove body 1. An appropriate amount of [unspecified substance] is filled into the heat exchange tank 11. The hot air furnace body 1 sends the flue gas and heat generated after fuel combustion to the air inlet 2 through the connecting pipe 12. The heat exchange component is set between the heat exchange tank 11 and the connecting pipe 12. The heat exchange component is used to replace heat. The heat exchange component includes an air inlet pipe 21 and an air outlet pipe 31. Both the air inlet pipe 21 and the air outlet pipe 31 are set in the heat exchange tank 11 and are arranged in parallel. The exhaust flue gas and other gas mixtures containing heat are sent to the tank 11. Through the setting of the heat exchange component, heat is replaced with the replacement liquid in the tank 11, so as to make full use of resources.

[0030] The intake pipe 21 is composed of multiple straight tubular bodies, and the exhaust pipe 31 is composed of multiple S-shaped tubular bodies. A first section 22 is provided at the upper end of the intake pipe 21, and the intake pipe 21 is fixedly connected to the first section 22. An air inlet 2 is provided at the upper end of the first section 22, and the air inlet 2 is fixedly connected to the first section 22. A second section 32 is provided at the upper end of the exhaust pipe 31, and the exhaust pipe 31 is fixedly connected to the second section 32. An air outlet 3 is provided at the upper end of the second section 32, and the air outlet 3 is fixedly connected to the second section 32. The air inlet 2 and... A frame is provided on the outside of the air outlet 3. Both the air inlet 2 and the air outlet 3 are fixedly connected to the frame. The gas containing heat enters the first zone 22 through the air inlet 2 and passes through the air inlet pipe 21. The air inlet pipe 21 exchanges heat with the displacement liquid in the heat exchange tank 11 through multiple sets of straight tubular bodies. After passing through the ash accumulation zone 4, the gas enters the air outlet pipe 31. At this time, the heat is exchanged with the displacement liquid in the heat exchange tank 11 a second time through multiple S-shaped tubes in the air outlet pipe 31. The S-shaped tubes also increase the gas flow path and improve the replacement efficiency.

[0031] The bottom ends of the air inlet pipe 21 and the air outlet pipe 31 are provided with ash accumulation areas 4. Both the air inlet pipe 21 and the air outlet pipe 31 are fixedly connected to the connecting plate 41. The bottom end of the connecting plate 41 is provided with ash accumulation areas 4. The connecting plate 41 and the ash accumulation areas 4 are connected by fasteners, including but not limited to bolts. The upper end of the air outlet 3 is provided with a second partition 32. The second partition 32 is connected to the air outlet 3 by fasteners, including but not limited to bolts. When the gas passes through the ash accumulation areas 4, the unburned particles inside are deposited in the ash accumulation areas 4, which avoids the continuous accumulation of unburned particles in the air inlet pipe 21 and the air outlet pipe 31, which would reduce the gas flow. At the same time, the second partition 32 on the air outlet 3 filters the discharged gas, preventing the gas from being directly discharged and causing pollution to the external environment.

[0032] Working principle: An appropriate amount of displacement fluid is filled into the heat exchange tank 11. The flue gas and heat generated after fuel combustion are sent to the air inlet 2 through the connecting pipe 12. The gas containing heat enters the first zone 22 through the air inlet 2 and passes through the air inlet pipe 21. The air inlet pipe 21 exchanges heat with the displacement fluid in the heat exchange tank 11 through multiple sets of straight tubular bodies. After passing through the ash accumulation zone 4, the gas enters the air outlet pipe 31. At this time, the heat is exchanged with the displacement fluid in the heat exchange tank 11 a second time through multiple S-shaped tubes in the air outlet pipe 31. The S-shaped tubes increase the gas flow path and improve the replacement efficiency. When the gas passes through the ash accumulation zone 4, the unburned particles inside are deposited in the ash accumulation zone 4, which avoids the continuous accumulation of unburned particles in the air inlet pipe 21 and the air outlet pipe 31, which would reduce the gas flow. At the same time, the second zone 32 on the air outlet 3 filters the discharged gas to prevent the gas from being discharged directly and causing pollution to the external environment.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A jet hot air furnace, characterized in that, include: The hot air furnace body (1) has an exhaust port at the upper end; A heat exchange tank (11) is provided on one side of the hot air furnace body (1). A connecting pipe (12) is provided between the heat exchange tank (11) and the hot air furnace body (1). The connecting pipe (12) connects the hot air furnace body (1) and the heat exchange tank (11). The heat exchange component is located between the heat exchange tank (11) and the connecting pipe (12). The heat exchange component is used to replace heat. The heat exchange component includes an inlet pipe (21) and an outlet pipe (31). Both the inlet pipe (21) and the outlet pipe (31) are located inside the heat exchange tank (11) and are arranged side by side.

2. The jet hot blast stove according to claim 1, characterized in that, The air inlet pipe (21) is composed of multiple straight tubular bodies, and the air outlet pipe (31) is composed of multiple S-shaped tubular bodies.

3. The jet hot blast stove according to claim 1, characterized in that, The upper end of the air intake pipe (21) is provided with a first partition (22), the air intake pipe (21) is fixedly connected to the first partition (22), and the upper end of the first partition (22) is provided with an air inlet (2), which is fixedly connected to the first partition (22).

4. The jet hot blast stove according to claim 1, characterized in that, The upper end of the air outlet pipe (31) is provided with a second partition (32), the air outlet pipe (31) is fixedly connected to the second partition (32), the upper end of the second partition (32) is provided with an air outlet (3), and the air outlet (3) is fixedly connected to the second partition (32).

5. The jet hot blast stove according to claim 4, characterized in that, The air inlet (2) and air outlet (3) are provided with frames on the outside, and the air inlet (2) and air outlet (3) are fixedly connected to the frames.

6. The jet hot blast stove according to claim 1, characterized in that, The bottom ends of the air inlet pipe (21) and the air outlet pipe (31) are provided with dust accumulation areas (4), and the air inlet pipe (21) and the air outlet pipe (31) are both fixedly connected to the connecting plate (41).

7. The jet hot blast stove according to claim 6, characterized in that, The bottom end of the connecting plate (41) is provided with a dust accumulation area (4), and the connecting plate (41) and the dust accumulation area (4) are connected by fasteners.

8. The jet hot blast stove according to claim 4, characterized in that, The upper end of the air outlet (3) is provided with a second partition (32), and the second partition (32) is connected to the air outlet (3) by fasteners.

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