CN117287692B - Biomass nanometer micropowder fluid state combustion machine - Google Patents

Abstract

The invention relates to the technical field of biomass nanometer micropowder fluidized combustion engines, and discloses a biomass nanometer micropowder fluidized combustion engine, which can more uniformly premix nanometer micropowder biomass fuel and air in a premixing box through the synergistic effect of an intermittent stirring mechanism and a turnover mechanism, and then reduce the possibility of backfire, in the combustion process, the nanometer miropowder biomass fuel after premixing can burn more high-efficiently, reduces harmful gas's emission when improving energy utilization efficiency to realize more environmental protection's production mode.

Description

A biomass nano-powder fluidized combustion machine

Technical Field

The invention relates to the technical field of biomass nano-powder fluidized burners, and more specifically to a biomass nano-powder fluidized burner.

Background Art

Biomass nano-powder fluidized burner is a device that uses biomass nano-powder for combustion. The device crushes and refines biomass materials (such as wood chips, straw, etc.) into nano-level powders, which are then transported into the combustion chamber for combustion.

The flashback problem is a challenge that the biomass nano-powder fluidized burner may encounter during the combustion process. The flashback phenomenon refers to the situation where the fuel continues to burn after the fire source disappears. This has not been well solved at this stage. When the biomass nano-powder fluidized burner flashes back during the combustion process, it will bring the following hazards:

Safety hazards: The flashback phenomenon will cause the temperature and pressure in the combustion chamber to continue to rise, which may cause the combustion equipment to overload, the pressure in the combustion chamber to increase, and even cause serious safety accidents such as explosions.

Fuel waste: Backdraft results in the failure to fully utilize the fuel, and some fuel continues to burn after the fire source disappears, causing energy waste.

Environmental pollution: Backfire will lead to increased emissions of incompletely burned harmful substances in the exhaust gas, such as carbon monoxide (CO), carbon dioxide (CO2) and other toxic gases, aggravating air pollution and environmental load.

Equipment damage: Backdraft causes the temperature in the combustion chamber to rise beyond the design range, which may cause deformation of equipment components, pipe blockage, equipment damage and other problems, affecting the normal operation and life of the equipment.

Summary of the invention

In order to overcome the above-mentioned defects of the prior art, the present invention provides a biomass nano-powder fluidized burner to solve the problems existing in the above-mentioned background technology.

The present invention provides the following technical solution: a biomass nano-powder fluidized burner, comprising a premixing box, the outer surface of which is fixedly sleeved with symmetrically distributed bases, an intermittent stirring mechanism is arranged above the premixing box, a turnover mechanism is arranged inside the premixing box, a monitoring system is arranged on the outer surface of the premixing box, and the monitoring system is applied to the premixing box, the intermittent stirring mechanism and the turnover mechanism for monitoring operations;

The premixing box also includes a first feed pipe and a second feed pipe fixedly connected to the two side surfaces of the premixing box and symmetrically distributed. The outer surface of the first feed pipe is fixedly connected with a first solenoid valve, and the inflow state of the nano-powder biomass fuel flowing into the premixing box through the first feed pipe is controlled by the first solenoid valve, and is transported to the monitoring system for monitoring. The outer surface of the second feed pipe is fixedly connected with a second solenoid valve, and the inflow state of air flowing into the premixing box through the second feed pipe is controlled by the second solenoid valve, and is transported to the monitoring system for monitoring.

The monitoring system also includes a data acquisition module, a data processing module, a controller, a decision module, a feeding module and a discharging module.

In a preferred embodiment, the intermittent stirring mechanism includes a support block fixedly mounted on the upper surface of a base, a motor mounting seat fixedly mounted on the upper surface of the support block, a first drive motor fixedly mounted at the center of the upper surface of the motor mounting seat, and the output shaft of the first drive motor fixedly mounted with a first transmission shaft via a coupling.

In a preferred embodiment, a rotating sleeve is rotatably sleeved on the upper surface of the support block, and the outer surface of one end of the rotating sleeve penetrates the support block and extends to the lower surface of the support block, and the outer surface of one end of the rotating sleeve located below the support block is fixedly connected to a connecting frame distributed in a ring array, and the lower surface of the connecting frame is fixedly connected to a gear ring, and one end of the first transmission shaft is fixedly sleeved on the inner wall of the rotating sleeve and extends to the lower surface of the rotating sleeve.

In a preferred embodiment, a first gear is fixedly sleeved on the outer surface of one end of the first transmission shaft located below the rotating sleeve, a central shaft is rotatably sleeved at the center of the upper surface of the premixing box, a second gear is fixedly sleeved on one end of the central shaft located on the upper surface of the premixing box, the outer surface of the second gear is meshed with the outer surface of the first gear, and the other end of the central shaft penetrates the upper surface of the premixing box and extends to the interior of the premixing box.

In a preferred embodiment, the flipping mechanism includes a mounting plate, which is fixedly mounted on the other end of the central axis located inside the premixing box, and the second drive motors distributed in a circular array are fixedly mounted on the upper surface of the mounting plate, and the mounting columns distributed in a circular array are fixedly mounted on the lower surface of the mounting plate, and the mounting columns are located directly below the second drive motor.

In a preferred embodiment, a transmission cavity is opened inside the mounting column, and the output shaft of the second drive motor is fixedly mounted with the second transmission shaft through a coupling, one end of the second transmission shaft is rotatably sleeved with the inner wall of the mounting hole of the mounting plate, and one end of the second transmission shaft is installed at the axis center of the mounting column through a bearing and extends to the interior of the transmission cavity, and the interior of the transmission cavity is provided with meshing components distributed in a linear array, each of the meshing components is composed of four driven bevel gears distributed in a ring array and two transmission bevel gears distributed symmetrically, and the outer surface of the driven bevel gear is meshed with the outer surface of the transmission bevel gear.

In a preferred embodiment, one end of the second transmission shaft is fixedly sleeved with the top end of one of the transmission bevel gears in the first meshing component, a connecting shaft is fixedly sleeved between the relative surfaces of adjacent meshing components, the outer surface of the middle end of the connecting shaft is rotatably sleeved with the inner wall of the transmission cavity, both ends of the connecting shaft are respectively fixedly sleeved with one of the transmission bevel gears in the adjacent meshing components, one end of the driven bevel gear is rotatably sleeved with the outer surface of the mounting column, a stirring blade is fixedly installed at one end of the driven bevel gear located outside the mounting column by bolts, and a discharge pipe is fixedly connected to the center of the lower surface of the premixing box.

In a preferred embodiment, the data acquisition module also includes a first differential pressure sensor and a second differential pressure sensor fixedly mounted on the outer surface of the premixing box, wherein the first differential pressure sensor is located above the second differential pressure sensor, the first differential pressure sensor collects in real time the pressure value P _{fuel pressure} data generated by the nano-powder biomass fuel flowing into the premixing box through the first feed pipe, and transmits the collected pressure value P _{fuel pressure} data to the data processing module via wireless communication, the second differential pressure sensor collects the mixed pressure value P _{mixed pressure} data generated by the nano-powder biomass fuel and air being premixed by the intermittent stirring mechanism and the flipping mechanism, and transmits the collected mixed pressure value P _{mixed pressure} data to the data processing module via wireless communication;

Data processing module: obtains the real-time pressure data collected by the first differential pressure sensor and the mixed pressure data collected by the second differential pressure sensor, calculates the actual ratio of nano-powder biomass fuel to air, and transmits the calculation result to the controller via wireless communication. The specific calculation formula is:

A ratio threshold range is set. When the actual ratio A of the nano-powder biomass fuel to the air is less than the ratio threshold, a first instruction is issued, indicating that the nano-powder biomass fuel supply is insufficient or the air supply is excessive, and the nano-powder biomass fuel needs to be added to the premixing box to increase the ratio;

When the actual ratio A of the nano-powder biomass fuel to the air is equal to the ratio threshold, a second instruction is issued, indicating that the premixing effect of the nano-powder biomass fuel and the air has reached the requirement and no supplementation is required;

When the actual ratio A of the nano-powder biomass fuel to air is greater than the ratio threshold, a third instruction is issued, indicating that the fuel supply is excessive or the air supply is insufficient, and air needs to be added to the premixing box to increase the ratio.

In a preferred embodiment, the controller: receives a first instruction and issues a first decision to the decision module, receives a second instruction and issues a second decision to the decision module, receives a third instruction and issues a third decision to the decision module, and the controller also controls the intermittent stirring mechanism, the turning mechanism, the data acquisition module, the feeding module, the decision module and the discharging module, and the controller is fixedly mounted on the outer surface of the support block;

The feeding module also includes a first flow valve fixedly mounted on the outer surface of the first feed pipe and a second flow valve fixedly mounted on the outer surface of the second feed pipe, wherein the first flow valve is located above the first solenoid valve, and the second flow valve is located above the second solenoid valve, and the flow rate of the nano-powder biomass fuel flowing into the premixing box is measured through the first flow valve, and the flow rate of the air flowing into the premixing box is measured through the second flow valve;

The discharging module also includes a third solenoid valve fixedly mounted on the surface of the discharging pipe, through which the nano-powder biomass fuel and air premixed in the premixing box are discharged.

In a preferred embodiment, the decision module: receives a command to start executing the first solenoid valve and the first flow valve in the first decision-controlled feeding module, receives a command to start executing the third solenoid valve in the third decision-controlled discharging module, and receives a command to start executing the second solenoid valve and the second flow valve in the third decision-controlled feeding module.

Technical effects and advantages of the present invention:

1. Through the synergistic effect of the intermittent stirring mechanism and the turning mechanism, the nano-powder biomass fuel and air in the premixing box can be premixed more evenly, thereby reducing the possibility of backfire. During the combustion process, the premixed nano-powder biomass fuel can burn more efficiently, improving energy utilization efficiency while reducing the emission of harmful gases, thereby achieving a more environmentally friendly production method.

2. The present invention uses a monitoring system to call a data processing module, a controller, a decision module, a feeding module and a discharging module to optimize and adjust the supply ratio of nano-powder biomass fuel and air to achieve the required optimal mixing ratio. When the supply ratio of nano-powder biomass fuel and air is equal to the set ratio threshold, the third solenoid valve in the discharging module is controlled to be energized, and the premixed nano-powder biomass fuel and air in the premixing box are transported to the combustion chamber of the biomass nano-powder fluidized burner through an external vacuum spiral feeding mechanism for combustion, thereby optimizing the subsequent combustion process, improving the combustion efficiency, and preventing the occurrence of backfire. Through the intelligent regulation of the system, the precise supply of nano-powder biomass fuel and air is achieved, thereby achieving a better combustion effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural block diagram of a monitoring system of the present invention.

FIG. 2 is a schematic diagram of the overall structure of the present invention.

FIG. 3 is a schematic diagram of the overall structure of a third solenoid valve of the present invention.

FIG. 4 is a schematic diagram of the overall structure of the intermittent stirring mechanism of the present invention.

FIG. 5 is a schematic diagram of the overall structure of the second gear of the present invention.

FIG. 6 is a schematic diagram of the overall structure of the second drive motor of the present invention.

FIG. 7 is a schematic diagram of the overall structure of the driven bevel gear of the present invention.

FIG8 is a schematic diagram of the overall structure of the stirring blade of the present invention.

The accompanying drawings are marked as follows: 1. premixing box; 2. base; 3. first feed pipe; 4. second feed pipe; 5. first solenoid valve; 6. second solenoid valve; 7. controller; 8. support block; 81. motor mounting seat; 82. first drive motor; 83. first transmission shaft; 84. rotating sleeve; 85. connecting frame; 86. gear ring; 87. first gear; 88. center shaft; 89. second gear; 9. mounting plate; 91. second drive motor; 92. mounting column; 93. transmission chamber; 94. second transmission shaft; 95. driven bevel gear; 96. transmission bevel gear; 97. connecting shaft; 98. stirring blade; 99. discharge pipe; 10. first differential pressure sensor; 11. second differential pressure sensor; 12. first flow valve; 13. second flow valve; 14. third solenoid valve.

DETAILED DESCRIPTION

The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The biomass nano-powder fluidized burner involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

1 and 8, the present invention provides a biomass nano-powder fluidized burner, including a premixing box 1, the outer surface of the premixing box 1 is fixedly sleeved with a symmetrically distributed base 2, an intermittent stirring mechanism is arranged above the premixing box 1, a turning mechanism is arranged inside the premixing box 1, and a monitoring system is arranged on the outer surface of the premixing box 1, and the monitoring system is applied to the premixing box 1, the intermittent stirring mechanism and the turning mechanism for monitoring operations;

Through the intermittent stirring mechanism, the nano-powder biomass fuel and air can be better mixed together, which helps to increase the contact area and contact time between the fuel and the air, making the fuel burn more fully and evenly. At the same time, stirring can also break the agglomeration between particles, prevent the accumulation and agglomeration of nano-powder biomass fuel, and further improve the combustion efficiency;

Through the cooperation of the flipping mechanism, the nano-powder biomass fuel can be flipped and stirred in the premixing box 1. This flipping movement can make the nano-powder biomass fuel evenly exposed to the air, thereby improving the combustibility and combustion efficiency of the nano-powder biomass fuel.

The premixing box 1 also includes a first feed pipe 3 and a second feed pipe 4 which are fixedly connected to the two side surfaces of the premixing box 1 and are symmetrically distributed. The outer surface of the first feed pipe 3 is fixedly connected with a first solenoid valve 5, and the inflow state of the nano-powder biomass fuel flowing into the premixing box 1 through the first feed pipe 3 is controlled by the first solenoid valve 5, and is transported to the monitoring system for monitoring. The outer surface of the second feed pipe 4 is fixedly connected with a second solenoid valve 6, and the inflow state of air flowing into the premixing box 1 through the second feed pipe 4 is controlled by the second solenoid valve 6, and is transported to the monitoring system for monitoring.

The monitoring system also includes a data acquisition module, a data processing module, a controller 7, a decision module, a feeding module and a discharging module.

In the embodiment of the present application, the specific workflow of this part of the application embodiment is: calling the data processing module, the controller 7, the decision module, the feeding module and the discharging module, optimizing and adjusting the supply ratio of the nano-micropowder biomass fuel and the air to achieve the required optimal mixing ratio. When the supply ratio of the nano-micropowder biomass fuel and the air is equal to the set ratio threshold, the third solenoid valve 14 in the discharging module is controlled to be energized, and the premixed nano-micropowder biomass fuel and air in the premixing box 1 are transported to the combustion chamber of the biomass nano-micropowder fluidized burner through the external vacuum spiral feeding mechanism for combustion, thereby optimizing the subsequent combustion process, improving the combustion efficiency, and preventing the occurrence of the backfire phenomenon. Through the intelligent regulation of the system, the precise supply of nano-micropowder biomass fuel and air is achieved, thereby achieving a better combustion effect.

2, 3, 4 and 5, the present invention provides a biomass nano-powder fluidized burner, the intermittent stirring mechanism includes a support block 8 fixedly mounted on the upper surface of the base 2, a motor mounting seat 81 is fixedly mounted on the upper surface of the support block 8, a first drive motor 82 is fixedly mounted at the center of the upper surface of the motor mounting seat 81, the output shaft of the first drive motor 82 is fixedly mounted with a first transmission shaft 83 through a coupling, a rotating sleeve 84 is rotatably sleeved on the upper surface of the support block 8, the outer surface of one end of the rotating sleeve 84 penetrates the support block 8 and extends to the lower surface of the support block 8, and the outer surface of one end of the rotating sleeve 84 located below the support block 8 is fixed A connecting frame 85 distributed in a ring array is fixedly connected, and a gear ring 86 is fixedly connected to the lower surface of the connecting frame 85. One end of the first transmission shaft 83 is fixedly sleeved with the inner wall of the rotating sleeve 84 and then extends to the lower surface of the rotating sleeve 84. A first gear 87 is fixedly sleeved on the outer surface of one end of the first transmission shaft 83 located below the rotating sleeve 84. A central shaft 88 is rotatably sleeved at the center of the upper surface of the premixing box 1. One end of the central shaft 88 located on the upper surface of the premixing box 1 is fixedly sleeved with a second gear 89. The outer surface of the second gear 89 is meshed with the outer surface of the first gear 87. The other end of the central shaft 88 penetrates the upper surface of the premixing box 1 and then extends to the interior of the premixing box 1.

In the embodiment of the present application, the specific working principle of the embodiment of this part of the application is: the controller 7 controls the intermittent stirring mechanism and the turning mechanism to start, and the specific working process is: the first drive motor 82 is controlled to start, the first drive motor 82 converts electrical energy into mechanical energy, and drives the ring gear 86 and the first gear 87 to realize synchronous circular rotation with the axis of the output shaft of the first drive motor 82 as the center of the circle. When the ring gear 86 is engaged with the second gear 89, the central shaft 88 connected to the inner wall of the second gear 89 and the mounting plate 9 are driven to rotate with the axis of the central shaft 88 as the center of the circle, and the mounting column 92 installed below the mounting plate 9 and the stirring blade 98 on the surface of the mounting column 92 are driven to rotate with the axis of the mounting plate 9 as the center of the circle, so as to realize intermittent positive stirring motion of the nano-powder biomass fuel and air in the premixing box 1;

When the first gear 87 is meshed with the second gear 89 , the stirring blades 98 are driven to perform intermittent reverse stirring motion on the nano-powder biomass fuel and air in the premixing box 1 by utilizing the characteristic that the first gear 87 and the second gear 89 are meshed with each other in opposite directions.

3, 4, 6, 7 and 8, the present invention provides a biomass nano-powder fluidized burner, wherein the flip mechanism comprises a mounting plate 9, the mounting plate 9 is fixedly mounted on the other end of the central axis 88 located inside the premixing box 1, the upper surface of the mounting plate 9 is fixedly mounted with second drive motors 91 distributed in a circular array, the lower surface of the mounting plate 9 is fixedly mounted with mounting columns 92 distributed in a circular array, and the mounting columns 92 are located directly below the second drive motor 91, a transmission cavity 93 is provided inside the mounting columns 92, a second transmission shaft 94 is fixedly mounted on the output shaft of the second drive motor 91 through a coupling, one end of the second transmission shaft 94 is rotatably sleeved with the inner wall of the mounting hole of the mounting plate 9, one end of the second transmission shaft 94 is mounted at the axis of the mounting column 92 through a bearing and extends to the inside of the transmission cavity 93, and the inside of the transmission cavity 93 is provided with a linear array The meshing components are arranged in a row, each meshing component is composed of four driven bevel gears 95 distributed in a ring array and two transmission bevel gears 96 distributed in a symmetrical shape. The outer surface of the driven bevel gear 95 is meshed with the outer surface of the transmission bevel gear 96. One end of the second transmission shaft 94 is fixedly sleeved with the top of one of the transmission bevel gears 96 in the first meshing component. A connecting shaft 97 is fixedly sleeved between the opposite surfaces of adjacent meshing components. The outer surface of the middle end of the connecting shaft 97 is rotatably sleeved with the inner wall of the transmission cavity 93. The two ends of the connecting shaft 97 are respectively fixedly sleeved with one of the transmission bevel gears 96 in the adjacent meshing components. One end of the driven bevel gear 95 is rotatably sleeved with the outer surface of the mounting column 92. The end of the driven bevel gear 95 located on the outside of the mounting column 92 is fixedly installed with a stirring blade 98 by bolts. A discharge pipe 99 is fixedly connected to the center of the lower surface of the premixing box 1.

In the embodiment of the present application, the specific working process of the embodiment of this part of the application is as follows: the controller 7 controls the second drive motor 91 to start, driving the second transmission shaft 94 to rotate with the axis of the output shaft of the second drive motor 91 as the center of the circle, and the second transmission shaft 94 is fixedly sleeved with the top of one of the transmission bevel gears 96 in the first meshing component, driving the transmission bevel gear 96 to mesh with four driven transmission gears, and the two ends of the connecting shaft 97 are respectively fixedly sleeved with one of the transmission bevel gears 96 in the adjacent meshing components, driving the driven bevel gears 95 in the multiple meshing components to rotate synchronously, and driving the stirring blades 98 to rotate with the axis of the driven bevel gear 95 as the center of the circle, so as to realize the flipping and stirring motion of the nano-powder biomass fuel and air in the premixing box 1;

Through the cooperation of the intermittent stirring mechanism and the turning mechanism, a more uniform mixing and stirring effect is achieved for the nano-powder biomass fuel and air in the premixing box 1, so that the premixed nano-powder biomass fuel is more uniform and efficient in the subsequent combustion process, thereby improving energy utilization efficiency and reducing environmental pollution.

Referring to FIG. 1 , the present invention provides a biomass nano-powder fluidized burner, wherein the data acquisition module further comprises a first differential pressure sensor 10 and a second differential pressure sensor 11 fixedly mounted on the outer surface of a premixing box 1, wherein the first differential pressure sensor 10 is located above the second differential pressure sensor 11, the first differential pressure sensor 10 collects in real time the pressure value P _{fuel pressure} data generated by the nano-powder biomass fuel flowing into the premixing box 1 through the first feed pipe 3, and transmits the collected pressure value P _{fuel pressure} data to the data processing module via wireless communication, the second differential pressure sensor 11 collects the mixed pressure value P _{mixed pressure} data generated by the nano-powder biomass fuel and air being premixed by an intermittent stirring mechanism and a flipping mechanism, and transmits the collected mixed pressure value P _{mixed pressure} data to the data processing module via wireless communication;

Data processing module: obtains the pressure value data collected in real time by the first differential pressure sensor 10 and the mixed pressure value data collected by the second differential pressure sensor 11, calculates the actual ratio of nano-powder biomass fuel to air, and transmits the calculation result to the controller 7 via wireless communication. The specific calculation formula is:

A ratio threshold range is set. When the actual ratio A of the nano-powder biomass fuel to the air is less than the ratio threshold, a first instruction is issued, indicating that the nano-powder biomass fuel supply is insufficient or the air supply is excessive, and the nano-powder biomass fuel needs to be added to the premixing box 1 to increase the ratio;

When the actual ratio A of the nano-powder biomass fuel to the air is equal to the ratio threshold, a second instruction is issued, indicating that the premixing effect of the nano-powder biomass fuel and the air has reached the requirement and no supplementation is required;

When the actual ratio A of the nano-powder biomass fuel to air is greater than the ratio threshold, a third instruction is issued, indicating that the fuel supply is too much or the air supply is insufficient, and air needs to be added to the premixing box 1 to increase the ratio;

Controller 7: upon receiving the first instruction, sends a first decision to the decision module; upon receiving the second instruction, sends a second decision to the decision module; upon receiving the third instruction, sends a third decision to the decision module. Controller 7 also controls the intermittent stirring mechanism, the turning mechanism, the data acquisition module, the feeding module, the decision module and the discharging module. Controller 7 is fixedly mounted on the outer surface of the support block 8;

The feeding module also includes a first flow valve 12 fixedly mounted on the outer surface of the first feed pipe 3 and a second flow valve 13 fixedly mounted on the outer surface of the second feed pipe 4. The first flow valve 12 is located above the first solenoid valve 5, and the second flow valve 13 is located above the second solenoid valve 6. The flow rate of the nano-powder biomass fuel flowing into the premixing box 1 is measured by the first flow valve 12, and the flow rate of the air flowing into the premixing box 1 is measured by the second flow valve 13;

The discharge module also includes a third solenoid valve 14 fixedly mounted on the surface of the discharge pipe 99, through which the nano-powder biomass fuel and air premixed in the premixing box 1 are discharged;

Decision module: receives the first solenoid valve 5 and the first flow valve 12 in the first decision-making control feeding module to start executing commands, receives the third solenoid valve 14 in the third decision-making control discharging module to start executing commands, and receives the second solenoid valve 6 and the second flow valve 13 in the third decision-making control feeding module to start executing commands.

The working principle of the present invention is:

Step 1: Control the first solenoid valve 5 to be energized through the controller 7, and deliver a certain amount of nano-powder biomass fuel into the premixing box 1 through the first feed pipe 3. After the delivery is completed, control the first solenoid valve 5 to be de-energized. At this time, use the first differential pressure sensor 10 to collect the pressure value P _{fuel pressure} data generated by the nano-powder biomass fuel flowing into the premixing box 1 through the first feed pipe 3 in real time, and transmit the collected pressure value P _{fuel pressure} data to the data processing module through wireless communication, control the second solenoid valve 6 to be energized, and deliver a certain amount of air into the premixing box 1 through the second feed pipe 4. After the delivery is completed, control the second solenoid valve 6 to be de-energized, and start to premix the nano-powder biomass fuel and air;

Step 2, control the intermittent stirring mechanism and the turning mechanism to start, and the specific working process is: control the first drive motor 82 to start, the first drive motor 82 converts electrical energy into mechanical energy, drives the ring gear 86 and the first gear 87 to realize synchronous circular rotation with the axis of the output shaft of the first drive motor 82 as the center of the circle, and when the ring gear 86 is engaged with the second gear 89, it drives the central shaft 88 connected to the inner wall of the second gear 89 and the mounting plate 9 to rotate with the axis of the central shaft 88 as the center of the circle, drives the mounting column 92 installed below the mounting plate 9 and the stirring blade 98 on the surface of the mounting column 92 to rotate with the axis of the mounting plate 9 as the center of the circle, and realizes intermittent positive stirring motion for the nano-powder biomass fuel and air in the premixing box 1;

When the first gear 87 is meshed with the second gear 89, the stirring blade 98 is driven to perform intermittent reverse stirring motion on the nano-powder biomass fuel and air in the premixing box 1 by utilizing the characteristics of the first gear 87 and the second gear 89 being meshed with each other in opposite directions.

At the same time, the second drive motor 91 is controlled to start, driving the second transmission shaft 94 to rotate with the axis of the output shaft of the second drive motor 91 as the center of the circle, and the second transmission shaft 94 is fixedly sleeved with the top of one of the transmission bevel gears 96 in the first meshing component, driving the transmission bevel gear 96 to mesh with four driven transmission gears, and the two ends of the connecting shaft 97 are respectively fixedly sleeved with one of the transmission bevel gears 96 in the adjacent meshing components, driving the driven bevel gears 95 in the multiple meshing components to rotate synchronously, and driving the stirring blades 98 to rotate with the axis of the driven bevel gear 95 as the center of the circle, so as to realize the turning and stirring motion of the nano-powder biomass fuel and air in the premixing box 1;

Through the cooperation of the intermittent stirring mechanism and the turning mechanism, a more uniform mixing and stirring effect is achieved for the nano-powder biomass fuel and the air in the premixing box 1, so that the premixed nano-powder biomass fuel is more uniform and efficient in the subsequent combustion process, thereby improving energy utilization efficiency and reducing environmental pollution.

Step 3: After the premixing of the nano-powder biomass fuel and the air is completed, the second differential pressure sensor 11 is used to collect the mixed pressure value P _{mixed pressure} data generated after the nano-powder biomass fuel and the air are premixed by the intermittent stirring mechanism and the flipping mechanism, and the collected mixed pressure value P _{mixed pressure} data is transmitted to the data processing module through wireless communication;

Step 4, in order to optimize the subsequent combustion process, improve the combustion efficiency, and prevent the occurrence of backfire, call the data processing module, the controller 7, the decision module, the feeding module and the discharging module to optimize and adjust the supply ratio of the nano-powder biomass fuel and the air to achieve the required optimal mixing ratio. When the supply ratio of the nano-powder biomass fuel and the air is equal to the set ratio threshold, the third solenoid valve 14 in the discharging module is controlled to be energized, and the premixed nano-powder biomass fuel and air in the premixing box 1 are transported to the combustion chamber of the biomass nano-powder fluidized burner through the external vacuum screw feeding mechanism for combustion.

Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A biomass nano-powder fluidized combustion machine, comprising a premixing box (1), characterized in that: the outer surface of the premixing box (1) is fixedly sleeved with a symmetrically distributed base (2), an intermittent stirring mechanism is arranged above the premixing box (1), the intermittent stirring mechanism comprises a support block (8) fixedly mounted on the upper surface of the base (2), a motor mounting seat (81) is fixedly mounted on the upper surface of the support block (8), a first drive motor (82) is fixedly mounted at the center of the upper surface of the motor mounting seat (81), the output shaft of the first drive motor (82) is fixedly mounted with a first transmission shaft (83) through a coupling, a rotating sleeve (84) is rotatably sleeved on the upper surface of the support block (8), the outer surface of one end of the rotating sleeve (84) penetrates the support block (8) and then extends to the lower surface of the support block (8), the rotating sleeve (84) ) The outer surface of one end located below the support block (8) is fixedly connected to a connecting frame (85) distributed in a ring array, the lower surface of the connecting frame (85) is fixedly connected to a gear ring (86), one end of the first transmission shaft (83) is fixedly sleeved with the inner wall of the rotating sleeve (84) and then extends to the lower surface of the rotating sleeve (84), the outer surface of the end of the first transmission shaft (83) located below the rotating sleeve (84) is fixedly sleeved with a first gear (87), a central shaft (88) is rotatably sleeved at the center of the upper surface of the premixing box (1), one end of the central shaft (88) located on the upper surface of the premixing box (1) is fixedly sleeved with a second gear (89), the outer surface of the second gear (89) is meshed with the outer surface of the first gear (87), and the other end of the central shaft (88) passes through the upper surface of the premixing box (1) and then extends to the interior of the premixing box (1); The premix box (1) is provided with a turnover mechanism inside. The turnover mechanism comprises a mounting plate (9). The mounting plate (9) is fixedly mounted on the other end of the central axis (88) located inside the premix box (1). The upper surface of the mounting plate (9) is fixedly mounted with second drive motors (91) distributed in a ring array. The lower surface of the mounting plate (9) is fixedly mounted with mounting posts (92) distributed in a ring array, and the mounting posts (92) are located directly below the second drive motor (91). A transmission cavity (93) is provided inside the mounting posts (92). The output shaft of the second drive motor (91) is fixedly mounted with a second transmission shaft (94) via a coupling. One end of the second transmission shaft (94) is rotatably sleeved with the inner wall of the mounting hole of the mounting plate (9). One end of the second transmission shaft (94) is mounted at the axis of the mounting post (92) via a bearing and extends to the inside of the transmission cavity (93). The transmission cavity (93) is provided with meshing components distributed in a linear array. Each of the meshing components is composed of four driven bevel gears (95) distributed in a ring array and two transmission bevel gears (96) distributed in a symmetrical shape. The outer surface of the driven bevel gear (95) meshes with the outer surface of the transmission bevel gear (96). One end of the second transmission shaft (94) is fixedly sleeved with the top of one of the transmission bevel gears (96) in the first meshing component. A connecting shaft (97) is fixedly sleeved between the opposite surfaces of adjacent meshing components. The outer surface of the middle end of the connecting shaft (97) is rotatably sleeved with the inner wall of the transmission cavity (93). Both ends of the connecting shaft (97) are respectively fixedly sleeved with one of the transmission bevel gears (96) in the adjacent meshing components. One end of the driven bevel gear (95) is rotatably sleeved with the outer surface of the mounting column (92). The end of the driven bevel gear (95) located outside the mounting column (92) is fixedly mounted with a stirring blade (98) by bolts. A discharge pipe (99) is fixedly connected to the center of the lower surface of the premixing box (1). The outer surface of the premixing box (1) is provided with a monitoring system, and the monitoring system is applied to the premixing box (1), the intermittent stirring mechanism and the turning mechanism to perform monitoring operations; The premixing box (1) further comprises a first feed pipe (3) and a second feed pipe (4) which are fixedly connected to the two side surfaces of the premixing box (1) and are symmetrically distributed. The outer surface of the first feed pipe (3) is fixedly connected to a first solenoid valve (5), and the first solenoid valve (5) is used to control the inflow state of the nano-powdered biomass fuel flowing into the premixing box (1) through the first feed pipe (3) and to deliver the nano-powdered biomass fuel to the monitoring system for monitoring. The outer surface of the second feed pipe (4) is fixedly connected to a second solenoid valve (6), and the second solenoid valve (6) is used to control the inflow state of air flowing into the premixing box (1) through the second feed pipe (4) and to deliver the nano-powdered biomass fuel to the monitoring system for monitoring. The monitoring system further comprises a data acquisition module, a data processing module, a controller (7), a decision module, a feeding module and a discharging module. 2. A biomass nano-powder fluidized burner according to claim 1, characterized in that: the data acquisition module also includes a first differential pressure sensor (10) and a second differential pressure sensor (11) fixedly mounted on the outer surface of the premixing box (1), wherein the first differential pressure sensor (10) is located above the second differential pressure sensor (11), the first differential pressure sensor (10) collects in real time the pressure value P _{fuel pressure} data generated by the nano-powder biomass fuel flowing into the premixing box (1) through the first feeding pipe (3), and transmits the collected pressure value P _{fuel pressure} data to the data processing module via wireless communication, the second differential pressure sensor (11) collects the mixed pressure value P _{mixed pressure} data generated by the nano-powder biomass fuel and air being premixed by the intermittent stirring mechanism and the turning mechanism, and transmits the collected mixed pressure value P _{mixed pressure} data to the data processing module via wireless communication; Data processing module: obtains the pressure value data collected in real time by the first differential pressure sensor (10) and the mixed pressure value data collected by the second differential pressure sensor (11), calculates the actual ratio of nano-powder biomass fuel to air, and transmits the calculation result to the controller (7) via wireless communication. The specific calculation formula is: A ratio threshold range is set, and when the actual ratio A of the nano-micro-powder biomass fuel to the air is less than the ratio threshold, a first instruction is issued, indicating that the nano-micro-powder biomass fuel supply is insufficient or the air supply is excessive, and it is necessary to add nano-micro-powder biomass fuel to the premixing box (1) to increase the ratio; When the actual ratio A of the nano-powder biomass fuel to the air is equal to the ratio threshold, a second instruction is issued, indicating that the premixing effect of the nano-powder biomass fuel and the air has reached the requirement and no supplementation is required; When the actual ratio A of the nano-powder biomass fuel to air is greater than the ratio threshold, a third instruction is issued, indicating that the fuel supply is excessive or the air supply is insufficient, and air needs to be added to the premixing box (1) to increase the ratio. 3. A biomass nano-powder fluidized burner according to claim 2, characterized in that: the controller (7) sends a first decision to the decision module upon receiving a first instruction, sends a second decision to the decision module upon receiving a second instruction, and sends a third decision to the decision module upon receiving a third instruction, and the controller (7) also controls the intermittent stirring mechanism, the turning mechanism, the data acquisition module, the feeding module, the decision module and the discharging module, and the controller (7) is fixedly mounted on the outer surface of the support block (8); The feeding module further comprises a first flow valve (12) fixedly mounted on the outer surface of the first feed pipe (3) and a second flow valve (13) fixedly mounted on the outer surface of the second feed pipe (4), wherein the first flow valve (12) is located above the first solenoid valve (5), and the second flow valve (13) is located above the second solenoid valve (6), and the flow rate of the nano-powdered biomass fuel flowing into the premixing box (1) is measured through the first flow valve (12), and the flow rate of the air flowing into the premixing box (1) is measured through the second flow valve (13); The discharge module also includes a third solenoid valve (14) fixedly mounted on the surface of the discharge pipe (99), and the discharge action of the nano-powder biomass fuel and air after premixing in the premixing box (1) is realized through the third solenoid valve (14). 4. A biomass nano-powder fluidized burner according to claim 1, characterized in that: the decision module: receives the first solenoid valve (5) and the first flow valve (12) in the first decision control feeding module to start executing the command, receives the third solenoid valve (14) in the third decision control discharging module to start executing the command, and receives the second solenoid valve (6) and the second flow valve (13) in the third decision control feeding module to start executing the command.