Biomass boiler waste heat recovery system

Abstract

The utility model relates to the field of heat energy. The biomass boiler waste heat recovery system comprises a recovery box, a filtering mechanism is fixedly connected to the interior of the recovery box, a waste heat cylinder is arranged in the recovery box, the top of the waste heat cylinder makes contact with the filtering mechanism, and a spiral pipe is arranged on the outer side wall of the waste heat cylinder in a winding mode. A dust box is fixedly connected to the lower surface of the interior of the recycling box, the lower surface of the waste heat cylinder communicates with the dust box through a cleaning plate, and a cleaning mechanism is arranged in the waste heat cylinder. The arranged recycling box is used for placing and fixing, waste gas enters the waste heat barrel to circulate for heat recycling, substances are replaced and heated through the spiral pipe, hot air in the waste heat barrel is utilized, the dust box is used for storing dust and impurities generated in the later period, and the interior of the waste heat barrel can be cleaned through the cleaning mechanism; and long-term use and heat power are ensured.

Description

Technical Field

[0001] The utility model relates to a waste heat recovery device, more specifically to a waste heat recovery system of a biomass boiler. Background Art

[0002] Biomass boiler is a type of boiler. A boiler that uses biomass energy as fuel is called a biomass boiler. It is divided into biomass steam boiler, biomass hot water boiler, biomass hot air furnace, biomass thermal oil furnace, vertical biomass boiler, horizontal biomass boiler, etc. Biomass boilers will produce flue gas when in use, and the flue gas produced contains a large amount of waste heat. If it is directly discharged into the air, it will cause energy loss, and the direct discharge of hot air into the air will aggravate the global greenhouse effect, which is not conducive to environmental protection requirements. When biomass energy is burned, some substances will produce impurities, dust and harmful substances after combustion. If they are discharged into the air at will, air pollution will also occur. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a biomass boiler waste heat recovery system, which can solve the above-mentioned problems.

[0004] To solve the above technical problems, according to one aspect of the utility model, more specifically, a biomass boiler waste heat recovery system includes a recovery box, a filtering mechanism is fixedly connected to the interior of the recovery box, a waste heat cylinder is provided inside the recovery box, the top of the waste heat cylinder is in contact with the filtering mechanism, a spiral tube is wound around the outer wall of the waste heat cylinder, a dust box is fixedly connected to the inner lower surface of the recovery box, the lower surface of the waste heat cylinder is connected to the dust box through a cleaning plate, a cleaning mechanism is provided inside the waste heat cylinder, and an exhaust mechanism is fixed to the interior of the recovery box above the filtering mechanism.

[0005] Furthermore, the cleaning mechanism includes a protective cover, a cleaning ring, a cleaning brush, and an adjusting block. The adjusting block is provided inside the protective cover, the cleaning brush is provided on the outer wall of the cleaning ring, a connecting rod is rotatably connected between the adjusting block and the cleaning brush, a telescopic rod is fixedly connected to the bottom of the waste heat cylinder, a rotator is fixedly connected to the top of the telescopic rod, and the rotator is fixedly connected to the protective cover.

[0006] Furthermore, the filtering mechanism includes an automatic scraper, a filter screen, and a filter sleeve. The automatic scraper is slidably connected to the interior of the filter sleeve. The filter screen is fixedly connected to the top and bottom of the interior of the filter sleeve. The automatic scraper is in contact with the filter screen.

[0007] Furthermore, the exhaust mechanism includes quartz stone and an exhaust pipe.

[0008] Furthermore, a water spraying device is fixedly connected to the interior of the protective cover.

[0009] The beneficial effects of the waste heat recovery system of a biomass boiler in the utility model are:

[0010] The recovery box is set up for placement and fixation, so that the waste gas can enter the waste heat cylinder for circulation and heat recovery. The spiral tube is used to replace and heat the material, so that the hot gas in the waste heat cylinder can be used. The dust box is used to store dust and impurities generated later. The cleaning mechanism can clean the inside of the waste heat cylinder to ensure long-term use and heat power.

[0011] The protective cover is driven to move up and down by the telescopic rod, and the rotation of the protective cover is realized by the rotator. When the lifting block moves downward, the cleaning brush is driven to rotate and contact the inner wall of the waste heat cylinder to clean it. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 This is a schematic diagram of the overall structure of a waste heat recovery system for a biomass boiler according to the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a waste heat recovery system for a biomass boiler according to the utility model;

[0015] Figure 3 This is a schematic diagram of the internal cross-sectional structure of a waste heat recovery system of a biomass boiler according to the utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of a protective sleeve in a waste heat recovery system of a biomass boiler in the utility model.

[0017] In the figure: 1. recovery box; 2. filtering mechanism; 3. waste heat cylinder; 4. spiral tube; 5. dust box; 6. cleaning plate; 7. cleaning mechanism; 8. exhaust mechanism; 9. protective cover; 10. cleaning ring; 11. cleaning brush; 12. adjusting block; 13. connecting rod; 14. telescopic rod; 15. rotator; 16. automatic scraper; 17. filter net; 18. filter cover; 19. quartz stone; 20. exhaust pipe. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0019] According to one aspect of the present invention, Figure 1As shown in FIG. 4 , a waste heat recovery system for a biomass boiler is provided, including a recovery box 1, to which a filtering mechanism 2 is fixedly connected inside the recovery box 1, a waste heat tube 3 is arranged inside the recovery box 1, the top of the waste heat tube 3 is in contact with the filtering mechanism 2, a spiral tube 4 is wound around the outer wall of the waste heat tube 3, a dust box 5 is fixedly connected to the inner lower surface of the recovery box 1, the lower surface of the waste heat tube 3 is connected to the dust box 5 through a cleaning plate 6, a cleaning mechanism 7 is arranged inside the waste heat tube 3, an exhaust mechanism 8 is fixedly arranged above the filtering mechanism 2 inside the recovery box 1, heat is recovered through the waste heat tube 3 and the spiral tube 4, the inside of the waste heat tube 3 is cleaned through the cleaning mechanism 7, and dust enters the dust box 5 through the cleaning plate 6.

[0020] In this embodiment, the cleaning mechanism 7 includes a protective cover 9, a cleaning ring 10, a cleaning brush 11, and an adjusting block 12. The protective cover 9 is provided with an adjusting block 12, and the outer wall of the cleaning ring 10 is provided with a cleaning brush 11. A connecting rod 13 is rotatably connected between the adjusting block 12 and the cleaning brush 11. A telescopic rod 14 is fixedly connected to the bottom of the waste heat tube 3, and a rotator 15 is fixedly connected to the top of the telescopic rod 14. The rotator 15 is fixedly connected to the protective cover 9. Through the movement of the adjusting block 12, the connecting rod 13 drives the cleaning brush 11 to rotate through the cleaning ring 10, and then contacts the waste heat tube 3 for cleaning.

[0021] In this embodiment, the filtering mechanism 2 includes an automatic scraper 16, a filter screen 17, and a filter sleeve 18. The automatic scraper 16 is slidably connected to the interior of the filter sleeve 18, and the filter screen 17 is fixedly connected to the top and bottom of the interior of the filter sleeve 18. The automatic scraper 16 is in contact with the filter screen 17, and the automatic scraper 16 cleans the filter screen 17 to ensure long-term use.

[0022] In this embodiment, the exhaust mechanism 8 includes a quartz stone 19 and an exhaust pipe 20 . The quartz stone 19 performs secondary filtration and cooling on the waste, and discharges the waste through the exhaust pipe 20 .

[0023] In this embodiment, a water spraying device is fixedly connected to the interior of the protective cover 9 to cool down and moisten the dust.

[0024] The working principle of this device is: let the exhaust gas enter the waste heat tube 3 for heat recovery, heat the spiral tube 4, then the exhaust gas passes through the filter 17 for dust filtration, and then passes through the quartz stone 19 and the exhaust pipe 20 for discharge, and the cleaning mechanism 7 regularly cleans the inside of the waste heat tube 3.

[0025] The electrical components that appear in this article are all electrical components that exist in reality.

[0026] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A waste heat recovery system for a biomass boiler, comprising a recovery box (1), characterized in that: The recovery box (1) is fixedly connected to a filter mechanism (2) inside, a waste heat tube (3) is provided inside the recovery box (1), the top of the waste heat tube (3) is in contact with the filter mechanism (2), a spiral tube (4) is wound around the outer wall of the waste heat tube (3), a dust box (5) is fixedly connected to the lower surface of the interior of the recovery box (1), the lower surface of the waste heat tube (3) is connected to the dust box (5) through a cleaning plate (6), a cleaning mechanism (7) is provided inside the waste heat tube (3), and an exhaust mechanism (8) is fixedly provided inside the recovery box (1) above the filter mechanism (2).

2. A biomass boiler waste heat recovery system according to claim 1, characterized in that: The cleaning mechanism (7) comprises a protective sleeve (9), a cleaning ring (10), a cleaning brush (11), and an adjusting block (12); the adjusting block (12) is arranged inside the protective sleeve (9); the cleaning brush (11) is arranged on the outer wall of the cleaning ring (10); a connecting rod (13) is rotatably connected between the adjusting block (12) and the cleaning brush (11); a telescopic rod (14) is fixedly connected to the bottom of the waste heat cylinder (3); a rotator (15) is fixedly connected to the top of the telescopic rod (14); and the rotator (15) is fixedly connected to the protective sleeve (9).

3. A biomass boiler waste heat recovery system according to claim 1, characterized in that: The filtering mechanism (2) comprises an automatic scraper (16), a filter screen (17), and a filter sleeve (18); the automatic scraper (16) is slidably connected inside the filter sleeve (18); the filter screen (17) is fixedly connected at the top and bottom of the filter sleeve (18); and the automatic scraper (16) is in contact with the filter screen (17).

4. The biomass boiler waste heat recovery system according to claim 1, characterized in that: The exhaust mechanism (8) comprises a quartz stone (19) and an exhaust pipe (20).

5. The biomass boiler waste heat recovery system according to claim 2, characterized in that: The interior of the protective cover (9) is fixedly connected with a water spraying device.

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