Layer-burning boiler burning molded biomass fuel

Abstract

The utility model discloses a grate-fired boiler burning molded biomass fuel, and relates to the technical field of boilers. The heating furnace comprises a furnace body, a hearth is fixedly connected in the furnace body, a feeding piece is arranged on the hearth, a fire insulation piece in sliding fit with the feeding piece is fixedly installed in the furnace body, the fire insulation piece comprises a connecting plate, the connecting plate is fixedly connected with the furnace body, a sliding rod is connected to the connecting plate in a sliding mode, a sliding plate is fixedly connected to one end of the sliding rod, and a through hole is formed in the sliding plate. By switching on and off the electromagnet, when fuel conveying stops, the electromagnet pulls the sliding rod to move, the through hole is made to be far away from the conveying pipe, the conveying pipe is blocked after conveying is finished, and the through hole and the conveying pipe are reset through the spring during use, so that the through hole and the conveying pipe are coaxial, and materials are normally conveyed; and the connecting part of the conveying pipe and the hearth is cut off, so that tempering in the hearth during use can be avoided, and fire disasters caused by tempering can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of boilers, in particular to a layer-fired boiler burning shaped biomass fuel. Background Art

[0002] A biomass grate-fired boiler refers to a grate-fired boiler that uses biomass as solid fuel. Biomass refers to organic matter derived from organisms, including wood, straw, crop residues, waste, etc. As one of the renewable energy sources, biomass is widely used in grate-fired boilers. The working principle of a biomass grate-fired boiler is similar to that of a general grate-fired boiler, but biomass fuels such as wood chips or straw are usually used for fuel supply. Its working process also realizes heat energy conversion through steps such as forming a fuel layer, ignition, combustion air supply, combustion process, steam generation, and flue gas emission.

[0003] When using the existing layer-fired boiler burning molded biomass fuel, there is no insulation between the existing boiler and the hopper, and the ignition point of the fuel is low. When in use, the flame in the furnace is very likely to backfire and ignite the fuel in the hopper, thereby causing a fire and causing economic losses.

[0004] To this end, we provide a layer-fired boiler that burns molded biomass fuel to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a layer-fired boiler burning molded biomass fuel. By turning the electromagnet on and off, when the fuel transportation stops, the electromagnet pulls the slide bar to move, so that the through hole is away from the feeding pipe, and the feeding pipe is blocked after the transportation is completed. When in use, it is reset by a spring, so that the through hole and the feeding pipe can be coaxial materials to be transported normally. By cutting off the connection between the feeding pipe and the furnace, it can be avoided that the furnace is backfired during use, thereby causing a fire.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model discloses a layer-fired boiler for burning molded biomass fuel, comprising a furnace body; a furnace is fixedly connected to the furnace body, a feed piece is arranged on the furnace body, a fireproof piece slidably matched with the feed piece is fixedly installed on the furnace body, the fireproof piece comprises a connecting plate, the connecting plate is fixedly connected to the furnace body, a sliding rod is slidably connected to the connecting plate, one end of the sliding rod is fixedly connected to a slide plate, a through hole is provided on the slide plate, an iron block is fixedly connected to the other end of the slide rod, an electromagnet matched with the iron block is fixedly connected to the inner wall of the furnace body, a spring is fixedly connected between the iron block and the connecting plate, the feed piece comprises a feeding pipe connected to the furnace, a sliding table is arranged on the peripheral side of the feeding pipe, the slide plate is slidably connected to the slide plate, and the inner diameter of the feeding pipe is the same as the inner diameter of the through hole.

[0008] The utility model is further configured that a rotating shaft is rotatably connected through the feeding pipe, a motor is fixedly connected to the end of the feeding pipe, an output end of the motor is fixedly connected to the rotating shaft, and an auger is arranged on the rotating shaft.

[0009] The utility model is further configured that a slide groove is provided in the slide table, a material storage box is provided on the material delivery pipe, and a material feeding pipe is provided between the material storage box and the material delivery pipe.

[0010] The utility model is further configured that two opposite sides of the furnace body are fixedly connected with water pipes, and threaded heat exchange pipes are arranged between the water pipes.

[0011] The utility model is further configured that a smoke outlet pipe is fixedly connected to the furnace surface, an ash outlet platform is threadedly connected to the furnace bottom surface, and a filter is fixedly connected to the ash outlet platform.

[0012] The utility model is further configured that a mounting ring is fixedly connected to the side surface of the furnace body, and a plurality of supporting legs are evenly and symmetrically fixedly connected to the bottom surface of the mounting ring.

[0013] The utility model is further configured that a burner is arranged on the peripheral side of the furnace, a combustion tube is arranged in communication between the burner and the furnace, and the combustion tube runs through the furnace body.

[0014] The utility model has the following beneficial effects:

[0015] 1. When the utility model is in use, by energizing the electromagnet, the electromagnet can pull the slide plate to move, and the through hole on the slide plate is away from the storage tank, so that the storage tank can be cut off, thereby avoiding the flashback phenomenon in the furnace after stopping the feeding and causing a fire.

[0016] 2. When the utility model is in use, the fuel in the storage box falls into the feed pipe, and the motor drives the rotating shaft to rotate, and the rotating shaft drives the auger to rotate. When in use, the fuel in the storage box can be evenly transported to the furnace for combustion, further improving the operation effect of the device.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The present invention is a schematic diagram of the structure of a layer-fired boiler burning formed biomass fuel.

[0020] Figure 2 This is a schematic diagram of the fire isolation structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the feeding piece of the utility model.

[0022] Figure 4 It is an assembly diagram of the slide table and the slide plate of the utility model.

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the furnace body of the present utility model.

[0024] Figure 6 This is an assembly diagram of the furnace and threaded heat exchange tubes of the utility model.

[0025] Figure 7 This is an assembly diagram of the ash discharging platform and filter screen of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Furnace body; 2. Furnace chamber; 3. Feeding parts; 4. Feeding pipe; 5. Rotating shaft; 6. Feeding pipe; 7. Storage box; 8. Motor; 9. Auger; 10. Slide; 11. Slide; 12. Fireproof parts; 13. Connecting plate; 14. Slide rod; 15. Slide plate; 16. Through hole; 17. Iron block; 18. Spring; 19. Electromagnet; 20. Water pipe; 21. Smoke outlet pipe; 22. Ash outlet platform; 23. Filter; 24. Mounting ring; 25. Support foot; 26. Combustion tube; 27. Burner; 28. Threaded heat exchange tube. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0030] See also Figure 1-7 The utility model is a layer-fired boiler for burning molded biomass fuel, comprising a furnace body 1; a furnace 2 is fixedly connected to the furnace body 1, and a feed piece 3 is arranged on the furnace 2; a fireproof piece 12 slidably matched with the feed piece 3 is fixedly installed on the furnace body 1; the fireproof piece 12 comprises a connecting plate 13, the connecting plate 13 is fixedly connected to the furnace body 1, a slide bar 14 is slidably connected to the connecting plate 13, a slide plate 15 is fixedly connected to one end of the slide bar 14, a through hole 16 is opened on the slide plate 15, an iron block 17 is fixedly connected to the other end of the slide bar 14, an electromagnet 19 adapted to the iron block 17 is fixedly connected to the inner wall of the furnace body 1, a spring 18 is fixedly connected between the iron block 17 and the connecting plate 13, the feed piece 3 comprises a feed pipe 4 connected to the furnace 2, a slide table 10 is connected to the side surface of the feed pipe 4, the slide table 15 is slidably connected to the slide table 10, and the inner diameter of the feed pipe 4 is the same as the inner diameter of the through hole 16.

[0031] The operation process of this embodiment is as follows: during the feeding process, the fuel enters the furnace 2 through the feeding pipe 4. During the feeding process, the electromagnet 19 is powered off. Driven by the spring 18, the iron block 17 drives the slide bar 14 to move to an appropriate distance, so that the through hole 16 is coaxial with the feeding pipe 4. At this time, the fuel can enter the furnace 2 normally through the feeding pipe 4 for combustion. When the fuel in the furnace 2 is sufficient, the fuel delivery of the feeding pipe 4 is stopped, and the electromagnet 19 is powered on to attract the iron block 17 to fit it. At this time, the iron block 17 compresses the tension spring 18, drives the slide bar 14 to move to an appropriate distance, drives the slide plate 15 to move in the slide 10, and the through hole 16 is away from the feeding pipe 4, so that the feeding pipe 4 is blocked, and the feeding point is separated from the furnace 2, which can avoid the phenomenon of fuel tempering in the furnace 2 during use. Specific embodiment 2

[0033] See also Figure 1-4 On the basis of the specific embodiment 1, a rotating shaft 5 is rotatably connected to the feed pipe 4, a motor 8 is fixedly connected to the end of the feed pipe 4, the output end of the motor 8 is fixedly connected to the rotating shaft 5, an auger 9 is arranged on the rotating shaft 5, a slide groove 11 is opened in the slide 10, a storage box 7 is arranged on the feed pipe 4, and a feed pipe 6 is arranged between the storage box 7 and the feed pipe 4.

[0034] The operating process of this embodiment is: when in use, the fuel in the storage box 7 falls into the delivery pipe 4 through the feed pipe 6, the motor 8 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the auger 9 to rotate, and the auger 9 pushes the fuel entering the delivery pipe into the furnace 2, which can evenly transport the fuel in the delivery pipe 4 to the furnace 2 for combustion, further improving the practicability of the device. Specific embodiment three

[0036] See also Figure 1-7 On the basis of the specific embodiment 1 and the specific embodiment 2, water pipes 20 are fixedly connected to the two opposite sides of the furnace body 1, and threaded heat exchange pipes 28 are arranged between the water pipes 20, a smoke outlet pipe 21 is fixedly connected to the surface of the furnace 2, an ash outlet platform 22 is threadedly connected to the bottom surface of the furnace 2, and a filter screen 23 is fixedly connected to the ash outlet platform 22, a mounting ring 24 is fixedly connected to the side of the furnace body 1, and a plurality of supporting legs 25 are evenly and symmetrically fixedly connected to the bottom surface of the mounting ring 24, a burner 27 is arranged on the side of the furnace 2, a combustion pipe 26 is arranged between the burner 27 and the furnace 2, and the combustion pipe 26 runs through the furnace body 1.

[0037] The operation process of this embodiment is as follows: valves are provided on the water pipes 20, and the heated water is input into the threaded heat exchange tube 28 through the water pipes 20. An air inlet is provided on the ash discharge platform 22. After the fuel is ignited by the burner 27, the temperature of the furnace 2 increases, and the threaded heat exchange tube 28 is heat-exchanged, so that the water can be heated. The dust after combustion is collected through the filter 23, and the device is fixed by the support feet 25 and the mounting ring 24, thereby improving the stability of the device.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A layer-fired boiler burning shaped biomass fuel, comprising a furnace body (1); characterized in that: A furnace (2) is fixedly connected to the furnace body (1), a material inlet (3) is arranged on the furnace body (2), a fireproofing member (12) which is slidably matched with the material inlet (3) is fixedly installed on the furnace body (1), the fireproofing member (12) comprises a connecting plate (13), and the connecting plate (13) is fixedly connected to the furnace body (1); A slide bar (14) is slidably connected to the connecting plate (13), one end of the slide bar (14) is fixedly connected to a slide plate (15), a through hole (16) is provided on the slide plate (15), the other end of the slide bar (14) is fixedly connected to an iron block (17), an electromagnet (19) adapted to the iron block (17) is fixedly connected to the inner wall of the furnace body (1), a spring (18) is fixedly connected between the iron block (17) and the connecting plate (13), the feed member (3) comprises a feed pipe (4) connected to the furnace chamber (2), a slide table (10) is connected to the side surface of the feed pipe (4), the slide plate (15) is slidably connected to the slide table (10), and the inner diameter of the feed pipe (4) is the same as the inner diameter of the through hole (16).

2. A layer-fired boiler burning shaped biomass fuel according to claim 1, characterized in that: A rotating shaft (5) is rotatably connected to the inside of the material conveying pipe (4), a motor (8) is fixedly connected to the end of the material conveying pipe (4), an output end of the motor (8) is fixedly connected to the rotating shaft (5), and an auger (9) is arranged on the rotating shaft (5).

3. A layer-fired boiler burning shaped biomass fuel according to claim 1, characterized in that: A slide groove (11) is provided in the slide table (10), a material storage box (7) is provided on the material delivery pipe (4), and a material inlet pipe (6) is provided between the material storage box (7) and the material delivery pipe (4).

4. A layer-fired boiler burning shaped biomass fuel according to claim 1, characterized in that: Two opposite sides of the furnace body (1) are fixedly connected with water pipes (20), and a threaded heat exchange pipe (28) is arranged between the water pipes (20).

5. The layer-fired boiler burning shaped biomass fuel according to claim 1, characterized in that: A smoke outlet pipe (21) is fixedly connected to the surface of the furnace (2), an ash outlet platform (22) is threadedly connected to the bottom surface of the furnace (2), and a filter screen (23) is fixedly connected to the ash outlet platform (22).

6. The layer-fired boiler burning shaped biomass fuel according to claim 1, characterized in that: The furnace body (1) is fixedly connected to a mounting ring (24) on its circumferential side surface, and a plurality of supporting legs (25) are evenly and symmetrically fixedly connected to the bottom surface of the mounting ring (24).

7. The layer-fired boiler burning shaped biomass fuel according to claim 1, characterized in that: A burner (27) is arranged on the peripheral side of the furnace (2), a combustion tube (26) is arranged in communication between the burner (27) and the furnace (2), and the combustion tube (26) passes through the furnace body (1).

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