Blanking device of biomass hot blast stove

Abstract

The utility model relates to the field of hot blast stoves, in particular to a biomass hot blast stove discharging device which comprises a hot blast stove body, a combustion chamber is arranged in the hot blast stove body, a discharging mechanism used for conveying biomass fuel to the combustion chamber is arranged on the hot blast stove body, and the discharging mechanism comprises at least four hoppers. A feeding pipe extending into the combustion chamber is arranged at the position of the hopper, and a feeding pipe opening is formed in the position of the feeding pipe. The discharging mechanism further comprises an annular plate rotationally arranged on the outer side of the hot blast stove body, and the annular plate is provided with a blocking part used for blocking an opening of the feeding pipe and an opening part allowing biomass fuel to pass through. Compared with a manual feeding mode, the biomass fuel feeding device has the advantages that the workload of workers is well reduced, insufficient combustion caused by accumulation of the biomass fuel at the furnace mesh due to manual single-time addition of excessive biomass fuel is avoided, and meanwhile, the problem of combustion interruption caused by forgetting to add the fuel by the workers is well avoided.

Description

Technical Field

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

[0002] Biomass fuel hot air furnace is currently widely used as a heat source in tobacco, vegetable and other agricultural products baking rooms. Its working principle is: biomass fuel is transported to the hot air furnace through the 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 adding fuel, the operator usually puts the fuel directly into the furnace, and adds fuel in time before the fuel is exhausted to maintain continuous heat output. At present, there is no special fuel delivery and unloading equipment on the market. The use of hot air furnace equipment requires operators to continuously add fuel. Manual feeding consumes a lot of labor. When operating at night, it is not conducive to the rest of workers. In addition, the feeding is uneven, which affects the combustion effect. The feeding time is random, and there will be combustion interruptions or discontinuous work. Utility Model Content

[0003] The purpose of the utility model is to provide a feeding device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A biomass hot blast furnace unloading device comprises a hot blast furnace body, a combustion chamber is arranged in the hot blast furnace body, a unloading mechanism for conveying biomass fuel to the combustion chamber is arranged at the hot blast furnace body, the unloading mechanism comprises at least 4 hoppers, the at least 4 hoppers are evenly distributed along the circumference of the hot blast furnace body, a feeding pipe extending into the combustion chamber is arranged at the hopper, and a feeding pipe opening is arranged at the feeding pipe; the unloading mechanism also comprises an annular plate rotatably arranged on the outside of the hot blast furnace body, a blocking part for sealing the feeding pipe opening and an opening for passing the biomass fuel are arranged at the annular plate, and a driving mechanism for driving the annular plate to rotate is also arranged at the hot blast furnace body.

[0006] As a preferred embodiment of the utility model, an extension portion is provided at the lower end portion of the annular plate, and a pedestal for supporting the extension portion of the annular plate is provided at the outer wall of the hot blast furnace body; the driving mechanism includes a gear ring arranged on the inner wall of the extension portion, and the driving mechanism also includes a reduction box arranged at the pedestal, a gear meshing with the gear ring is provided at the output shaft of the reduction box, and a reduction box motor is connected to the input shaft of the reduction box.

[0007] As a preferred solution of the utility model, it also includes a fan, and a heat exchange tube is arranged at the fan, and the end of the heat exchange tube extends into the hot blast stove body and passes through the hot blast stove body.

[0008] As a preferred solution of the utility model, the heat exchange tube is located in the hot blast stove body and has a spiral shape.

[0009] As a preferred solution of the utility model, an exhaust pipe is provided at the top end of the hot blast stove body.

[0010] As a preferred solution of the utility model, an annular boss is provided in the combustion chamber and is located below the feed pipe. A furnace grid for placing biomass fuel is provided at the annular boss.

[0011] The utility model adopts the above technical solution, and can achieve the following beneficial effects:

[0012] Compared with the manual feeding method, the utility model not only effectively reduces the workload of workers, but also avoids the problem of excessive single addition of biomass fuel causing the biomass fuel to accumulate at the furnace mesh and cause incomplete combustion, and also effectively avoids the problem of workers forgetting to add fuel and causing combustion interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the hot blast furnace body in the utility model.

[0014] Figure 2 for Figure 1 A cross-sectional view of the hot blast stove body in FIG.

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the middle ring plate.

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of the middle hopper.

[0017] The meanings of the numbers in the figure are as follows: 100, hot blast furnace body; 110, hopper; 120, feed pipe; 130, annular plate; 140, extension; 150, support platform; 160, fan; 170, heat exchange tube; 180, exhaust pipe; 210, combustion chamber; 220, feed pipe opening; 230, gear ring; 240, reduction box; 250, gear; 260, reduction box motor; 270, annular boss; 280, furnace net; 290, ignition port; 310, blocking part; 320, opening. DETAILED DESCRIPTION

[0018] 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.

[0019] The following is combined with Figure 1-Figure 4 This embodiment is described in further detail.

[0020] like Figure 1-4 As shown, this embodiment provides a biomass hot blast furnace unloading device, which includes a hot blast furnace body 100, a combustion chamber 210 is provided in the hot blast furnace body 100, an ignition port 290 communicating with the combustion chamber 210 is provided at the side wall of the hot blast furnace body 100, and a sealing door is provided at the ignition port 290. An annular boss 270 located below the feeding pipe 120 is provided in the combustion chamber 210, a furnace net 280 for placing biomass fuel is provided at the annular boss 270, and an exhaust pipe 180 is provided at the top end of the hot blast furnace body 100.

[0021] The hot blast stove body 100 is provided with a feeding mechanism for conveying the biomass fuel to the combustion chamber 210, and the feeding mechanism includes at least 4 hoppers 110, and the at least 4 hoppers 110 are evenly distributed along the circumference of the hot blast stove body 100, and the hoppers 110 are provided with a feeding pipe 120 extending into the combustion chamber 210, and the feeding pipe 120 is provided with a feeding pipe opening 220; the feeding mechanism also includes an annular plate 130 rotatably arranged on the outside of the hot blast stove body 100, and the annular plate 130 is provided with a blocking portion 310 for sealing the feeding pipe opening 220 and an opening portion 320 for the biomass fuel to pass through, and the hot blast stove body 100 is also provided with a driving mechanism for driving the annular plate 130 to rotate.

[0022] It also includes a fan 160, and a heat exchange tube 170 is provided at the fan 160. The end of the heat exchange tube 170 extends into the hot blast stove body 100 and passes through the hot blast stove body 100. The heat exchange tube 170 located in the hot blast stove body 100 is spiral.

[0023] When in use, the biomass fuel is placed in the hopper 110, and then the driving mechanism is started, so that the opening 320 at the annular plate 130 rotates to the feed pipe opening 220, so that part of the biomass fuel falls evenly on the furnace net 280, and the driving mechanism is continued to be started, so that the blocking part 310 at the annular plate 130 blocks the feed pipe opening 220. Then, the biomass fuel at the furnace net 280 is ignited through the ignition port 290, and then the fan 160 is started, so that the outside air enters the hot air furnace body 100 from the heat exchange tube 170 at the fan 160, and the heat generated by the combustion of the biomass fuel heats the air in the heat exchange tube 170, and the heated air is discharged from the port of the heat exchange tube 170. In actual use, the fuel can be added to the furnace net 280 at regular intervals through the intermittent operation of the driving mechanism.

[0024] The biomass hot blast furnace unloading device in this embodiment can drive the annular plate 130 to rotate through the driving mechanism through the setting of the unloading mechanism, thereby realizing the timed and quantitative addition of biomass fuel to the furnace net 280. Compared with the manual loading method, it not only reduces the workload of workers, but also avoids the accumulation of biomass fuel at the furnace net 280 due to excessive manual single addition of biomass fuel, resulting in incomplete combustion, and also better avoids the problem of workers forgetting to add fuel and causing combustion interruption. Among them, the pipe body of the heat exchange tube 170 located in the hot blast furnace body 100 is set in a spiral shape, which can better improve the heating effect of the air in the heat exchange tube 170.

[0025] In this embodiment, an extension portion 140 is provided at the lower end of the annular plate 130, and a base 150 for supporting the extension portion 140 at the annular plate 130 is provided at the outer wall of the hot blast furnace body 100; the driving mechanism includes a gear ring 230 arranged at the inner wall of the extension portion 140, and the driving mechanism also includes a reduction box 240 arranged at the base 150, and a gear 250 meshing with the gear ring 230 is provided at the output shaft of the reduction box 240, and a reduction box motor 260 is connected to the input shaft of the reduction box 240. The reduction box motor 260 in this embodiment adopts a servo motor.

[0026] When in use, the reduction box motor 260 is started to make the reduction box motor 260 work at intervals, thereby realizing the interval rotation of the annular plate 130, thereby realizing the regular addition of biomass fuel to the furnace grid 280.

[0027] 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 air furnace feeding device, characterized by: The invention comprises a hot blast furnace body (100), wherein a combustion chamber (210) is arranged in the hot blast furnace body (100), and a feeding mechanism for conveying biomass fuel to the combustion chamber (210) is arranged at the hot blast furnace body (100), wherein the feeding mechanism comprises at least four hoppers (110), wherein the at least four hoppers (110) are evenly distributed along the circumference of the hot blast furnace body (100), and a feeding pipe extending into the combustion chamber (210) is arranged at the hopper (110). (120), a feed pipe opening (220) is provided at the feed pipe (120); the unloading mechanism also includes an annular plate (130) rotatably arranged on the outside of the hot blast furnace body (100), a blocking portion (310) for blocking the feed pipe opening (220) and an opening (320) for passing the biomass fuel are provided at the annular plate (130), and a driving mechanism for driving the annular plate (130) to rotate is also provided at the hot blast furnace body (100).

2. The biomass hot blast furnace unloading device according to claim 1 is characterized in that: An extension portion (140) is provided at the lower end of the annular plate (130), and a support (150) for supporting the extension portion (140) at the annular plate (130) is provided at the outer wall of the hot blast furnace body (100); the driving mechanism comprises a gear ring (230) arranged at the inner wall of the extension portion (140), and the driving mechanism also comprises a reduction box (240) arranged at the support (150), a gear (250) meshing with the gear ring (230) is provided at the output shaft of the reduction box (240), and a reduction box motor (260) is connected to the input shaft of the reduction box (240).

3. The biomass hot blast furnace unloading device according to claim 1 is characterized in that: It also includes a fan (160), and a heat exchange tube (170) is provided at the fan (160), and the end of the heat exchange tube (170) extends into the hot blast stove body (100) and passes through the hot blast stove body (100).

4. The biomass hot blast furnace unloading device according to claim 3 is characterized in that: The heat exchange tube (170) is located in the hot blast stove body (100) and has a spiral shape.

5. The biomass hot blast furnace unloading device according to claim 1 is characterized in that: An exhaust pipe (180) is provided at the top end of the hot blast stove body (100).

6. The biomass hot blast furnace unloading device according to claim 1 is characterized in that: An annular boss (270) is provided in the combustion chamber (210) and is located below the feed pipe (120). A furnace net (280) for placing biomass fuel is provided at the annular boss (270).

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