Hearth assembly of biomass hot blast stove

Abstract

The utility model relates to the field of biomass hot blast stoves, in particular to a biomass hot blast stove hearth assembly which comprises a hot blast stove body, a hearth assembly is arranged in the hot blast stove body and comprises an outer sleeve, an inner sleeve is arranged in the outer sleeve, and an air inlet cavity is formed between the outer sleeve and the inner sleeve. A material plate for placing fuel is arranged in the inner sleeve, a plurality of air inlet holes are formed in the sleeve wall of the inner sleeve, and the air inlet holes are formed in the circumferential direction of the inner sleeve; a cover plate used for sealing the air inlet cavity is arranged at the upper end of the inner sleeve, and an exhaust pipe is arranged on the cover plate. The outer sleeve is provided with a connector communicated with the air inlet cavity, and the connector is connected with an air inlet pipe. According to the utility model, the plurality of air inlet holes are formed in the position close to the material plate, so that external air can be in better contact with fuel which is stacked together, and the combustion effect of the fuel can be better improved.

Description

Technical Field

[0001] The utility model relates to the field of biomass hot blast stoves, in particular to a biomass hot blast stove furnace component. Background Art

[0002] Biomass fuel hot air furnace is currently widely used as a heat source in tobacco, vegetable and other agricultural products drying rooms. Its working principle is: biomass fuel is transported to the hot air furnace through a feeding device for combustion, and the flame heats the air in the heat exchanger to generate hot air, which is transported to the baking room to provide heat for baking. When the current hot air furnace is in use, in order to ensure that there is enough air in the furnace, an air inlet is usually opened on the side wall of the furnace. The ordinary air inlet has a single air inlet direction, and the ash produced after the fuel is burned is easy to accumulate at the fuel, which makes it impossible for the air to contact the fuel better, resulting in poor fuel combustion effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0004] A biomass hot blast furnace furnace assembly comprises a hot blast furnace body, a furnace assembly is arranged in the hot blast furnace body, the furnace assembly comprises an outer sleeve, an inner sleeve is arranged in the outer sleeve, an air intake cavity is formed between the outer sleeve and the inner sleeve, a material plate for placing fuel is arranged in the inner sleeve, a plurality of air intake holes are arranged on the wall of the inner sleeve, and the plurality of air intake holes are arranged along the circumference of the inner sleeve; a cover plate for sealing the air intake cavity is arranged on the upper end of the inner sleeve, and an exhaust pipe is arranged on the cover plate; a connector communicated with the air intake cavity is arranged on the outer sleeve, and the air intake pipe is connected to the connector.

[0005] As a preferred solution of the utility model, the bottom end of the inner sleeve contracts inwardly to form a cone portion, and a first ash discharge port for discharging ash is provided at the bottom end surface of the cone portion.

[0006] As a preferred embodiment of the utility model, two second ash row openings are provided at the bottom end surface of the outer sleeve, a support platform is provided at the second ash row openings, a strip opening is provided at the side wall of the outer sleeve, a support platform is provided at the bottom end of the outer sleeve, a baffle is slidably provided at the strip opening, the baffle can slide to the support platform to seal the second row ash openings; the end of the baffle extends out of the hot air furnace body.

[0007] As a preferred solution of the utility model, an installation step is provided at the upper end of the hot blast stove body, and the upper end of the outer sleeve expands outward to form an outer sleeve flange for being placed at the installation step.

[0008] As a preferred solution of the utility model, the bottom end of the hot blast stove body is provided with an ash collection chamber located at the lower end of the outer sleeve, and a collection box for collecting ash is provided in the ash collection chamber.

[0009] As a preferred solution of the utility model, a feed port is provided at the cover plate, a material guide plate is provided at the feed port, and a sealing plate for sealing the feed port is provided at the cover plate.

[0010] The utility model adopts the above technical solution, and can achieve the following beneficial effects:

[0011] The utility model arranges a plurality of air inlet holes near the material plate, so that the outside air can better contact with the piled-up fuel, thereby better improving the combustion effect of the fuel, and the air discharged from the air inlet holes can blow away the ashes produced after the fuel is burned, thereby avoiding the accumulation of ashes on the fuel and causing the air to be unable to better contact with the fuel, thereby further improving the combustion effect of the fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the hot blast furnace body in Example 1.

[0013] Figure 2 for Figure 1 A cross-sectional view of the hot blast stove body in FIG.

[0014] Figure 3 for Figure 2 Half-section view of the furnace assembly. DETAILED DESCRIPTION

[0015] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0016] Example 1

[0017] like Figure 1-2 As shown, this embodiment provides a biomass hot blast furnace furnace assembly, which includes a hot blast furnace body 110, a furnace assembly is arranged in the hot blast furnace body 110, and the furnace assembly includes an outer sleeve 210, an inner sleeve 220 is arranged in the outer sleeve 210, the bottom end of the inner sleeve 220 shrinks inward to form a cone 270, and a first ash row 280 for discharging ash is arranged at the bottom end surface of the cone 270. An air intake cavity 230 is formed between the outer sleeve 210 and the inner sleeve 220, a material plate 240 for placing fuel is arranged in the inner sleeve 220, and a material plate through hole 2150 is arranged at the material plate 240;

[0018] The inner sleeve 220 has a plurality of air inlet holes 250 disposed on its wall, and the plurality of air inlet holes 250 are arranged circumferentially along the inner sleeve 220; the upper end of the inner sleeve 220 is provided with a cover plate 120 for sealing the air inlet cavity 230, a feeding port 2130 is provided at the cover plate 120, a material guide plate 2140 is provided at the feeding port 2130, and a sealing plate 150 for sealing the feeding port 2130 is provided at the cover plate 120; an exhaust pipe 130 is also provided at the cover plate 120; a connector 260 communicating with the air inlet cavity 230 is provided at the outer sleeve 210, and the air inlet pipe 140 is connected to the connector 260.

[0019] When in use, first add fuel to the inner sleeve 220 through the charging port 2130 so that it falls on the material plate 240, and then ignite the fuel on the material plate 240. During the combustion of the fuel, air is blown into the air intake cavity 230 through the air intake pipe 140, so that the air is discharged from the air intake hole 250, thereby achieving the blowing of air into the furnace.

[0020] The biomass hot blast furnace furnace assembly in this embodiment is provided with a plurality of air inlet holes 250 near the material plate 240, so that the outside air can better contact with the piled fuel, thereby better improving the combustion effect of the fuel, and the air discharged from the air inlet holes 250 can blow away the ash produced after the combustion of the fuel, thereby avoiding the accumulation of ash on the fuel and causing the air to be unable to better contact with the fuel, thereby further improving the combustion effect of the fuel.

[0021] Combination Figure 3 As shown, two second ash row openings 310 are provided at the bottom end surface of the outer sleeve 210, a support platform 320 is provided at the second ash row openings 310, a strip opening 330 is provided at the side wall of the outer sleeve 210, a support platform 320 is provided at the bottom end of the outer sleeve 210, a baffle 340 is slidably provided at the strip opening 330, and the baffle 340 can slide to the support platform 320 to seal the second ash row openings 310; the end of the baffle 340 extends out of the hot air furnace body 110.

[0022] In this embodiment, by providing the second ash discharge port 310 and the baffle 340 , the fuel and ash entering the air inlet cavity 230 can be discharged by pulling the baffle 340 , thereby avoiding blockage of the air inlet cavity 230 .

[0023] In this embodiment, a mounting step 290 is provided at the upper end of the hot blast stove body 110 , and the upper end of the outer sleeve 210 expands outward to form an outer sleeve flange 2100 for being placed at the mounting step 290 .

[0024] In this embodiment, the outer sleeve 210 can be installed in the hot blast stove body 110 more conveniently by providing the installation step 290 and the outer sleeve flange 2100 .

[0025] In this embodiment, the bottom end of the hot blast stove body 110 is provided with an ash collecting chamber 2110 located at the lower end of the outer sleeve 210 , and the ash collecting chamber 2110 is provided with a collecting box 2120 for collecting ash.

[0026] In this embodiment, by providing the collection box 2120 , the ashes discharged from the first ash row opening 280 and the second ash row opening 310 can be collected.

[0027] The working principle of the biomass hot blast furnace furnace assembly in this embodiment is:

[0028] When in use, first open the sealing plate 150, add fuel to the material plate 240 in the inner sleeve 220 through the feeding port 2130, after the fuel at the material plate 240 is added, ignite the fuel and blow air into the air intake chamber 230 through the air intake pipe 140, the air in the air intake chamber 230 is discharged into the material plate 240 through the air intake hole 250, and the ash produced by the combustion of the fuel falls into the collection box 2120 through the material plate through hole 2150 and the first ash discharge port 280, after the hot blast furnace body 110 has finished working, pull the baffle 340 to allow the fuel and ash entering the air intake chamber 230 to fall into the collection box 2120, and then open the hot blast furnace body 110 to take out the collection box 2120 for cleaning.

[0029] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. Biomass hot blast furnace furnace assembly, characterized in that: The hot blast furnace comprises a hot blast furnace body (110), a furnace assembly is arranged in the hot blast furnace body (110), the furnace assembly comprises an outer sleeve (210), an inner sleeve (220) is arranged in the outer sleeve (210), an air intake cavity (230) is formed between the outer sleeve (210) and the inner sleeve (220), a material plate (240) for placing fuel is arranged in the inner sleeve (220), and a plurality of air intake holes are arranged on the wall of the inner sleeve (220). (250), the multiple air inlet holes (250) are arranged along the circumference of the inner sleeve (220); the upper end of the inner sleeve (220) is provided with a cover plate (120) for sealing the air inlet cavity (230), and the cover plate (120) is provided with an exhaust pipe (130); the outer sleeve (210) is provided with a connector (260) that is in communication with the air inlet cavity (230), and the connector (260) is connected to the air inlet pipe (140).

2. The biomass hot blast furnace furnace assembly according to claim 1, characterized in that: The bottom end of the inner sleeve (220) contracts inwardly to form a cone portion (270), and a first ash discharge port (280) for discharging ash is provided at the bottom end surface of the cone portion (270).

3. The biomass hot blast stove furnace assembly according to claim 1, characterized in that: Two second ash discharge openings (310) are provided at the bottom end surface of the outer sleeve (210), a support platform (320) is provided at the second ash discharge openings (310), a strip opening (330) is provided at the side wall of the outer sleeve (210), a support platform (320) is provided at the bottom end of the outer sleeve (210), a baffle (340) is slidably provided at the strip opening (330), and the baffle (340) can slide to the support platform (320) to seal the second ash discharge openings (310); the end of the baffle (340) extends out of the hot air furnace body (110).

4. The biomass hot blast furnace furnace assembly according to claim 1, characterized in that: The upper end of the hot blast stove body (110) is provided with a mounting step (290), and the upper end of the outer sleeve (210) expands outward to form an outer sleeve flange (2100) for being placed at the mounting step (290).

5. The biomass hot blast stove furnace assembly according to claim 1, characterized in that: The bottom end of the hot blast stove body (110) is provided with an ash collection chamber (2110) located at the lower end of the outer sleeve (210), and the ash collection chamber (2110) is provided with a collection box (2120) for collecting ash.

6. The biomass hot blast stove furnace assembly according to claim 1, characterized in that: A feeding port (2130) is provided at the cover plate (120), a material guide plate (2140) is provided at the feeding port (2130), and a sealing plate (150) for sealing the feeding port (2130) is provided at the cover plate (120).

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