Low-energy-consumption biomass fuel combustion device

Abstract

The invention provides a low-energy-consumption biomass fuel combustion device, and relates to the field of combustors, the low-energy-consumption biomass fuel combustion device comprises a first feeding assembly, a crushing assembly, a compression granulation assembly, a weighing assembly, a second feeding assembly and a combustor, the crushing assembly is used for crushing biomass fuel and conveying the crushed biomass fuel into the compression and granulation assembly, the compression and granulation assembly is used for compressing the crushed biomass fuel into particles, and after the particles are weighed through the weighing assembly, the particles are finally fed into the combustor through the second feeding assembly to be combusted. A temperature detection sensor is arranged in the combustor, biomass fuel replaces fire coal, pollutant emission can be effectively reduced, smashing and pelleting are integrated, rod-shaped and block-shaped biomass can be smashed and pelletized and then sent into the combustor to be combusted, the energy utilization rate can be increased, and the production cost can be reduced.

Description

Technical Field

[0001] The present application relates to the field of burners, and in particular to a low-energy biomass fuel combustion device. Background Art

[0002] With the advancement of my country's economic development and ecological civilization construction, the country has higher and higher requirements for energy conservation and environmental protection, and has put forward higher requirements for the green development of the cement industry. The resources, energy and environmental protection constraints faced by the industry are becoming increasingly stringent. The industry must achieve clean production methods, develop a circular economy to replace resources and energy with waste, accelerate low-carbon development, and develop energy-containing combustible waste to replace fuel technology. At present, most of the cement industry uses coal for heating. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a low-energy biomass fuel combustion device that can solve the above-mentioned technical problems.

[0004] The embodiment of the present application provides a low-energy biomass fuel combustion device, including a first feeding component, a crushing component, a compression granulation component, a weighing component, a second feeding component, and a burner. The first feeding component is used to transport the biomass fuel to the inside of the crushing component, the crushing component is used to crush the biomass fuel and transport the crushed biomass fuel to the compression granulation component, the compression granulation component is used to compress the crushed biomass fuel to form particles, after being weighed by the weighing component, finally sent to the burner for combustion through the second feeding component, and a temperature detection sensor is arranged inside the burner.

[0005] Preferably, the crushing assembly includes a feed hopper, an outer shell, a crushing bin, a coarse crushing assembly, a fine crushing assembly, a first drive motor, a second drive motor, a first rotating shaft, and a second rotating shaft. The feed hopper is installed at the upper end of the outer shell, and the crushing bin is arranged at the lower end of the feed hopper. The coarse crushing assembly includes a plurality of coarse cutting knives, and the fine crushing assembly includes a plurality of fine cutting knives. The first drive motor is installed at the outer end of the crushing bin, one end of the first rotating shaft is connected to the first drive motor through a transmission assembly, and the other end of the first rotating shaft extends into the crushing bin. The coarse cutting knives are evenly installed on the first rotating shaft, the second drive motor is installed at the outer end of the crushing bin, one end of the second rotating shaft is connected to the second drive motor through a transmission assembly, and the other end of the second rotating shaft extends into the crushing bin, and the fine cutting knives are evenly installed on the second rotating shaft. The first rotating shaft and the second rotating shaft both rotate inward, and the coarse cutting knife and the fine cutting knife are partially overlapped.

[0006] Preferably, at least three of the fine cutting knives are arranged between two adjacent rough cutting knives.

[0007] Preferably, a special-shaped knife is provided between two adjacent rough cutting knives and between two adjacent fine cutting knives.

[0008] Preferably, the compression granulation assembly includes a third drive motor, a feed pipe, a spiral reamer, a forming orifice plate, and a granulation shell. The feed pipe is installed in the middle of the granulation shell, the spiral reamer is installed in the granulation shell, the third drive motor is used to drive the spiral reamer to rotate, the forming orifice plate is installed at the discharge end of the spiral reamer, a bearing is arranged between the end of the spiral reamer away from the third drive motor and the granulation shell, the forming orifice plate is arranged in a cylindrical shape, and the forming orifice plate is arranged with a plurality of granulation holes in an array, and a discharge pipe is arranged at the lower end of the granulation shell.

[0009] Preferably, the weighing assembly comprises a weighing bin, which is installed at the lower end of the discharge pipe and is provided with a weighing sensor.

[0010] Preferably, at least two weighing sensors are provided.

[0011] Preferably, the burner includes a kiln tail pre-combustion furnace and a preheating element, a cooling fan is arranged on the side of the kiln tail pre-combustion furnace, the feed end of the pre-heating element is connected to the discharge end of the second feeding assembly, the discharge end of the pre-heating element is connected to the kiln tail pre-combustion furnace, and the exhaust gas of the kiln tail pre-combustion furnace is connected to an external chimney through the preheating element.

[0012] Preferably, the first feeding assembly and the second feeding assembly are both screw conveyors, and the first feeding assembly and the second feeding assembly both include a feeding pipe, a stirring dragon and a driver, the stirring dragon is installed in the feeding pipe, and the driver is used to drive the stirring dragon to rotate.

[0013] Preferably, the preheating element is arranged in a long strip shape, and the second feeding assembly extends into the preheating element.

[0014] Beneficial effects of the present invention:

[0015] The present invention provides a low-energy biomass fuel combustion device, comprising a first feeding component, a crushing component, a compression granulation component, a weighing component, a second feeding component, and a burner. The first feeding component is used to transport the biomass fuel to the inside of the crushing component, the crushing component is used to crush the biomass fuel and transport the crushed biomass fuel to the compression granulation component, the compression granulation component is used to compress the crushed biomass fuel to form particles, after being weighed by the weighing component, finally sent to the burner for combustion through the second feeding component, the burner is provided with a temperature detection sensor, the present invention replaces coal with biomass fuel, can effectively reduce the emission of pollutants, and the present invention has an integrated crushing and granulation arrangement, can directly crush and granulate rod-shaped and block-shaped biomass, and then send it to the burner for combustion, which can improve energy utilization efficiency and reduce the production cost of cement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the crushing component of the present invention.

[0019] The reference numerals are:

[0020] 1. First feeding assembly; 2. Crushing assembly; 3. Compression granulation assembly; 4. Weighing assembly; 5. Second feeding assembly; 6. Burner; 7. Feed hopper; 8. Casing; 9. Crushing bin; 10. Coarse crushing assembly; 11. Fine crushing assembly; 12. First drive motor; 13. Second drive motor; 14. First rotating shaft; 15. Second rotating shaft; 16. Coarse cutting knife; 17. Fine cutting knife; 18. Special-shaped knife; 19. Third drive motor; 20. Feed pipe; 21. Spiral reamer; 22. Forming orifice plate; 23. Granulation shell; 24. Discharge pipe; 25. Weighing bin; 26. Kiln tail pre-combustion furnace; 27. Preheating part; 28. Feeding pipe; 29. ​​Agitator. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] like Figure 1-2As shown, a low-energy biomass fuel combustion device includes a first feeding component 1, a crushing component 2, a compression granulation component 3, a weighing component 4, a second feeding component 5, and a burner 6. The first feeding component 1 is used to transport the biomass fuel to the inside of the crushing component 2, the crushing component 2 is used to crush the biomass fuel and transport the crushed biomass fuel to the compression granulation component 3, the compression granulation component 3 is used to compress the crushed biomass fuel to form particles, after being weighed by the weighing component 4, finally sent to the burner 6 for combustion through the second feeding component 5, the burner 6 is provided with a temperature detection sensor. The present invention can effectively reduce the emission of pollutants by replacing coal with biomass fuel, and the crushing and granulation of the present invention are integrated, and rod-shaped and block-shaped biomass can be directly crushed and granulated, and then sent to the burner 6 for combustion, which can improve energy utilization efficiency and reduce the production cost of cement.

[0028] like Figure 2 As shown, in this embodiment, the crushing assembly 2 includes a feed hopper 7, a shell 8, a crushing bin 9, a coarse crushing assembly 10, a fine crushing assembly 11, a first drive motor 12, a second drive motor 13, a first rotating shaft 14, and a second rotating shaft 15. The feed hopper 7 is installed at the upper end of the shell 8, the crushing bin 9 is arranged at the lower end of the feed hopper 7, the coarse crushing assembly 10 includes a plurality of coarse cutting knives 16, and the fine crushing assembly 11 includes a plurality of fine cutting knives 17. The first drive motor 12 is installed at the outer end of the crushing bin 9, and one end of the first rotating shaft 14 is connected to the first drive motor through a transmission assembly. 12 is connected, the other end of the first rotating shaft 14 extends into the crushing bin 9, the coarse cutting knife 16 is evenly installed on the first rotating shaft 14, the second drive motor 13 is installed at the outer end of the crushing bin 9, one end of the second rotating shaft 15 is connected to the second drive motor 13 through a transmission assembly, the other end of the second rotating shaft 15 extends into the crushing bin 9, the fine cutting knife 17 is evenly installed on the second rotating shaft 15, the first rotating shaft 14 and the second rotating shaft 15 both rotate inwardly, and the coarse cutting knife 16 and the fine cutting knife 17 are partially overlapped.

[0029] Specifically, the first driving motor 12 drives the first rotating shaft 14, and the second driving motor 13 drives the second rotating shaft 15, so that the first rotating shaft 14 and the second rotating shaft 15 rotate inward, so that the rough cutting knife 16 and the fine cutting knife 17 cut the rod-shaped and block-shaped biomass into pieces.

[0030] like Figure 1 As shown, in this embodiment, at least three fine cutting knives 17 are arranged between two adjacent rough cutting knives 16. Specifically, the rough cutting knives 16 are used for cutting into small pieces, and the fine cutting knives 17 are used for chopping into small pieces.

[0031] like Figure 1 As shown, in this embodiment, a special-shaped knife 18 is provided between two adjacent rough cutting knives 16 and between the two adjacent fine cutting knives 17. The special-shaped knife 18 of the present invention is used to fix the rod-shaped and block-shaped biomass, so as to facilitate the subsequent work of the rough cutting knife 16 and the fine cutting knife 17.

[0032] like Figure 1 As shown, in this embodiment, the compression granulation component 3 includes a third drive motor 19, a feed pipe 20, a spiral reamer 21, a forming orifice plate 22, and a granulation shell 23. The feed pipe 20 is installed in the middle of the granulation shell 23, and the spiral reamer 21 is installed in the granulation shell 23. The third drive motor 19 is used to drive the spiral reamer 21 to rotate, and the forming orifice plate 22 is installed at the discharge end of the spiral reamer 21. A bearing is arranged between the end of the spiral reamer 21 away from the third drive motor 19 and the granulation shell 23. The forming orifice plate 22 is arranged in a cylindrical shape, and the forming orifice plate 22 is arranged with a plurality of granulation holes in an array. A discharge pipe 24 is arranged at the lower end of the granulation shell 23. The present invention extrude the chopped biomass through the spiral reamer 21, and then discharges the material from the forming orifice plate 22, and then it has been extruded and formed.

[0033] like Figure 1 As shown, in this embodiment, the weighing component 4 includes a weighing bin 25, and the weighing bin 25 is installed at the lower end of the discharge pipe 24. A weighing sensor is provided on the weighing bin 25. The present invention performs weighing processing through the weighing bin 25, and then calculates the heat through a heat converter, and feeds the granular biomass of appropriate weight into the burner 6 for combustion through the second feeding component 5. The present invention can accurately control the combustion temperature.

[0034] like Figure 1 As shown, in this embodiment, in order to ensure the reliability of weighing, at least two weighing sensors are provided.

[0035] like Figure 1 As shown, in this embodiment, the burner 6 includes a kiln tail pre-combustion furnace 26 and a pre-heating part 27. A cooling fan is arranged on the side of the kiln tail pre-combustion furnace 26. The feed end of the pre-heating part 27 is connected to the discharge end of the second feeding assembly 5, and the discharge end of the pre-heating part 27 is connected to the kiln tail pre-combustion furnace 26. The exhaust gas of the kiln tail pre-combustion furnace 26 is connected to the external chimney through the pre-heating part 27. The pre-heating part 27 is arranged in a long strip shape, and the second feeding assembly 5 extends into the pre-heating part 27. The present invention can preheat the fuel of the particles and make secondary use of the heat of the exhaust gas generated by the combustion.

[0036] like Figure 1As shown, in this embodiment, the first feeding component 1 and the second feeding component 5 are both screw conveyors, and the first feeding component 1 and the second feeding component 5 both include a feeding pipe 28, a stirring dragon 29 and a driver, the stirring dragon 29 is installed in the feeding pipe 28, and the driver is used to drive the stirring dragon 29 to rotate. The present invention adopts the stirring dragon 29 for feeding, and the feeding reliability is high and easy to control.

[0037] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low-energy biomass fuel combustion device, characterized in that: It includes a first feeding component, a crushing component, a compression granulation component, a weighing component, a second feeding component, and a burner. The first feeding component is used to transport the biomass fuel to the crushing component. The crushing component is used to crush the biomass fuel and transport the crushed biomass fuel to the compression granulation component. The compression granulation component is used to compress the crushed biomass fuel to form particles. After being weighed by the weighing component, the particles are finally transported to the burner for combustion through the second feeding component. A temperature detection sensor is arranged inside the burner.

2. A low-energy biomass fuel combustion device according to claim 1, characterized in that: The crushing assembly includes a feed hopper, an outer shell, a crushing bin, a coarse crushing assembly, a fine crushing assembly, a first drive motor, a second drive motor, a first rotating shaft, and a second rotating shaft. The feed hopper is installed at the upper end of the outer shell, and the crushing bin is arranged at the lower end of the feed hopper. The coarse crushing assembly includes a plurality of coarse cutting knives, and the fine crushing assembly includes a plurality of fine cutting knives. The first drive motor is installed at the outer end of the crushing bin, one end of the first rotating shaft is connected to the first drive motor through a transmission assembly, and the other end of the first rotating shaft extends into the crushing bin. The coarse cutting knives are evenly installed on the first rotating shaft, the second drive motor is installed at the outer end of the crushing bin, one end of the second rotating shaft is connected to the second drive motor through a transmission assembly, and the other end of the second rotating shaft extends into the crushing bin, and the fine cutting knives are evenly installed on the second rotating shaft. The first rotating shaft and the second rotating shaft both rotate inwardly, and the coarse cutting knife and the fine cutting knife are partially overlapped.

3. A low-energy biomass fuel combustion device according to claim 2, characterized in that: At least three of the fine cutting knives are arranged between two adjacent rough cutting knives.

4. A low-energy biomass fuel combustion device according to claim 2, characterized in that: Special-shaped knives are arranged between two adjacent rough cutting knives and between two adjacent fine cutting knives.

5. A low-energy biomass fuel combustion device according to claim 1, characterized in that: The compression granulation assembly includes a third drive motor, a feed pipe, a spiral reamer, a forming orifice plate, and a granulation shell. The feed pipe is installed in the middle of the granulation shell, the spiral reamer is installed in the granulation shell, the third drive motor is used to drive the spiral reamer to rotate, the forming orifice plate is installed at the discharge end of the spiral reamer, a bearing is arranged between the end of the spiral reamer away from the third drive motor and the granulation shell, the forming orifice plate is arranged in a cylindrical shape, and the forming orifice plate is arranged with a plurality of granulation holes in an array, and a discharge pipe is arranged at the lower end of the granulation shell.

6. A low-energy biomass fuel combustion device according to claim 5, characterized in that: The weighing assembly comprises a weighing bin, which is installed at the lower end of the discharge pipe and is provided with a weighing sensor.

7. A low-energy biomass fuel combustion device according to claim 6, characterized in that: At least two weighing sensors are provided.

8. A low-energy biomass fuel combustion device according to claim 1, characterized in that: The burner includes a pre-combustion furnace at the end of the kiln and a pre-heating element. A cooling fan is arranged on the side of the pre-combustion furnace at the end of the kiln. The feed end of the pre-combustion element is connected to the discharge end of the second feeding assembly, and the discharge end of the pre-combustion furnace is connected to the pre-combustion furnace at the end of the kiln. The exhaust gas of the pre-combustion furnace at the end of the kiln is connected to an external chimney through the pre-heating element.

9. A low-energy biomass fuel combustion device according to claim 1, characterized in that: The first feeding assembly and the second feeding assembly are both screw conveyors. The first feeding assembly and the second feeding assembly both include a feeding pipe, a stirring dragon and a driver. The stirring dragon is installed in the feeding pipe, and the driver is used to drive the stirring dragon to rotate.

10. A low-energy biomass fuel combustion device according to claim 8, characterized in that: The preheating component is arranged in a long strip shape, and the second feeding assembly extends into the preheating component.

Images