A micro powder burner

Abstract

The present invention relates to the technical field of burners and discloses a micro-powder burner, comprising a micro-powder silo, a spiral conveying mechanism fixedly connected to the bottom end of the micro-powder silo, a feeding pipe fixedly connected to the bottom end of the spiral conveying mechanism, a mixing pipe fixedly connected to the bottom end of the feeding pipe, a primary feeding fan fixedly connected to one side of the mixing pipe, an air inlet pipe fixedly connected to the other side of the mixing pipe, a secondary air port fixedly connected to the side of the air inlet pipe, a side of the secondary air port away from the air inlet pipe can be connected to an external fan, and a mixing combustion chamber fixedly connected to the side of the air inlet pipe away from the primary feeding fan; the present invention can load micro-powder through the spiral conveying mechanism, the primary feeding fan blows air into the mixing pipe, the mixing pipe sends air and micro-powder into the mixing combustion chamber together and mixes them, and the secondary air port can replenish secondary air for mixing again, the micro-powder and air of the present application are mixed more thoroughly, so that the combustion is sufficient, the dust is small, and the integrated combustion operation is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, and more particularly to a micro-powder burner. Background Art

[0002] According to its working principle, a burner can be defined as a device that converts substances into heat energy through the chemical reaction of combustion, that is, air and fuel are mixed in appropriate proportions through a premixing device to make them fully burn;

[0003] Burners are also called burners. According to the fuel, they can be divided into oil burners, gas burners, and biomass burners. According to the user, they can be divided into kiln burners and boiler burners. According to the application field, they can be divided into industrial burners, civil burners, and special burners. Micro-powder burners are equipment that uses biomass nano-powders for combustion. The equipment crushes and refines biomass materials (such as wood chips, straw, etc.) to make nano-level micro-powders, and then transports them into the combustion chamber for combustion. The selected materials are easy to obtain, so it is a widely used burner.

[0004] When using the current micro powder burner, it is necessary to load the micro powder, mix it with air, and then ignite it to make it burn. This process requires many devices, so multiple independent devices cooperate with each other, the required process is complicated, and they cannot be reasonably combined together;

[0005] When the micro powder burner is used, the micro powder is mixed with air and then burned. However, the micro powder and air can only be simply mixed, and the combustion is not sufficient, which will produce large dust, and the air volume and micro powder volume cannot be adjusted according to different situations. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the implementation rules of the present invention provide a micro powder burner to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a micro-powder burner comprises a micro-powder silo, a spiral conveying mechanism is fixedly connected to the bottom end of the micro-powder silo, a feeding pipe is fixedly connected to the bottom end of the spiral conveying mechanism, a mixing pipe is fixedly connected to the bottom end of the feeding pipe, a primary feeding fan is fixedly connected to one side of the mixing pipe, an air inlet pipe is fixedly connected to the other side of the mixing pipe, a secondary air port is fixedly connected to the side of the air inlet pipe, a side of the secondary air port away from the air inlet pipe can be connected to an external fan, a mixing combustion chamber is fixedly connected to the side of the air inlet pipe away from the primary feeding fan, an ignition gun is fixedly connected to the side of the air inlet pipe close to the mixing combustion chamber, a control system is fixedly connected to the side of the micro-powder silo, and the control system also comprises an input unit, a switching unit, a collection unit, an analysis unit, a supply unit and a control unit.

[0008] In a preferred embodiment, the screw conveying mechanism includes a servo motor for providing power, the bottom end of the servo motor is fixedly connected to a motor support, the output shaft of the servo motor is fixedly connected to a threaded rod, the side of the threaded rod away from the servo motor is movably connected to a stabilizing support, the side of the motor support away from the servo motor is fixedly connected to a loading barrel, and the side of the loading barrel away from the motor support is fixedly connected to the side of the stabilizing support.

[0009] In a preferred embodiment, the mixing combustion chamber includes an inner cylinder fixedly connected to the mixing tube and an outer cylinder fixedly connected to the air inlet pipe, the inner cylinder is movably connected to the outer blades, and the outer side of the inner cylinder away from the outer blades is fixedly connected to the inner blades.

[0010] In a preferred embodiment, the mixing tube is located inside the air inlet pipe, and one side of the mixing tube is fixedly connected to the side of the inner cylinder, and the other side of the mixing tube is fixedly connected to the side of the primary feeding fan, the gas in the primary feeding fan enters the mixing tube, and the gas in the secondary air port enters between the outer side of the mixing tube and the inner side of the air inlet pipe.

[0011] In a preferred embodiment, the input unit is used to input the combustion temperature that the micro-powder burner needs to reach, the switching unit switches between the primary feed fan working alone and the primary feed fan and the secondary air port working together, the acquisition unit is used to collect data information when the micro-powder burner is working, the analysis unit receives the data collected by the acquisition unit for calculation and then sends an instruction to the control unit, the control unit receives the instruction sent by the analysis unit and controls the operation of the spiral conveying mechanism, the primary feed fan and the secondary air port, the supply unit is used to control the micro-powder supply amount of the spiral conveying mechanism, a temperature threshold Y is set in the switching unit, the switching unit compares the set combustion temperature BZ to be reached by the burner input by the input unit with its internal temperature threshold Y, when the combustion temperature BZ is less than the temperature threshold Y, the switching unit sends a primary air instruction to the control unit, the control unit receives the primary air instruction and controls the primary feed fan to work alone, when the combustion temperature BZ to be generated is greater than or equal to the temperature threshold Y, the switching unit sends a secondary air instruction to the control unit, the control unit receives the secondary air instruction and controls the primary feed fan and the secondary air port to supply air together.

[0012] In a preferred embodiment, the collection unit includes a pre-combustion collection module and a post-combustion collection module. The pre-combustion collection module collects the first air volume data information FL1 generated by the primary feeding fan, the second air volume data information FL2 introduced into the secondary air port, and the micro-powder amount data information WF supplied by the spiral conveying mechanism. The post-combustion collection module collects the temperature data information WD during combustion and the dust amount data information HC generated per second after combustion. The pre-combustion collection module and the post-combustion collection module send the collected data information to the analysis unit.

[0013] In a preferred embodiment, the analysis unit receives the data information collected by the post-combustion acquisition module and calculates the judgment value P. The calculation formula of the judgment value P is P=K(BZ-WD)+HC, where K is the amplification factor, BZ is the set combustion temperature to be reached by the burner, and its value is input by the input unit. The analysis unit is provided with a first error threshold W1 and a second error threshold W2 for comparison, and the first error threshold W1 is less than the second error threshold W2.

[0014] In a preferred embodiment, the analysis unit compares the judgment value P with its internal first error threshold W1 and second error threshold W2. When the judgment value P≥the second error threshold W2, the analysis unit sends an increase instruction to the control unit. When the first error threshold W1<judgment value P<second error threshold W2, the analysis unit does not send an instruction. When the judgment value P≤first error threshold W1, the analysis unit sends a decrease instruction to the control unit. When the control unit receives the increase instruction, it controls the air volume in the primary feed fan and the air volume in the secondary air port to increase. When the control unit receives the decrease instruction, it controls the air volume in the primary feed fan and the air volume in the secondary air port to decrease.

[0015] In a preferred embodiment, the supply unit adjusts the micro-powder quantity data information WF supplied by the screw conveying mechanism, and the supply unit calculates the temperature coefficient XS when the micro-powder is burned. The calculation formula of the temperature coefficient XS is: Where n is the total number of tests, i is the current i-th test, BZi is the standard temperature to be reached in the i-th test, and WF i The i-th time the standard temperature BZ is reached i The amount of micro powder required, the calculation formula of the micro powder amount data information WF is: BZ is the set combustion temperature that the burner is to reach, and when the temperature coefficient XS is calculated, the micro powder is in a fully combusted state.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention can feed the micro powder through the spiral conveying mechanism, and feed the micro powder into the mixing tube through the feeding tube. The primary feeding fan blows air into the mixing tube. At this time, the mixing tube feeds the air and the micro powder into the mixing combustion chamber and mixes them. The secondary air port can be supplemented with secondary air, and the secondary air will enter the mixing combustion chamber and mix again. The micro powder and air of the present invention are mixed more thoroughly, so that they are fully burned, the dust is small, and the integrated combustion work is realized;

[0018] 2. The micro powder and air of the present invention enter the inner cylinder together through the mixing tube. When entering the inner cylinder, they will first pass through the external blades, so that the micro powder and air are mixed once, and then enter the outer cylinder. The gas introduced into the secondary air port will enter the outer cylinder and pass through the internal blades, so that the air is mixed with the micro powder again. The present application can perform two mixing to ensure the mixing effect between the micro powder and the air;

[0019] 3. The present invention collects temperature data information WD and dust volume data information HC, and the two, i.e., the calculated judgment value P, can represent the combustion situation. Therefore, the first air volume data information FL1 and the second air volume data information FL2 are adjusted in time to ensure that the micropowder can be fully burned. By calculating the temperature coefficient XS, the required micropowder volume data information WF can be known, making the micropowder volume data information WF more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the system composition structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of the burner of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure after the micro powder silo of the present invention is removed.

[0023] Figure 4 It is a structural schematic diagram of the spiral conveying mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the connection structure between the mixing tube and the primary feeding fan of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the mixing combustion chamber of the present invention.

[0026] The accompanying drawings are marked as follows: 1. Micro powder silo; 2. Screw conveying mechanism; 201. Motor support; 202. Servo motor; 203. Threaded rod; 204. Stable support; 205. Loading cylinder; 3. Unloading pipe; 4. Primary feeding fan; 5. Air inlet pipe; 6. Mixing combustion chamber; 601. Outer cylinder; 602. Inner cylinder; 603. Internal blades; 604. External blades; 7. Secondary air inlet; 8. Ignition gun; 9. Control system; 10. Mixing tube. DETAILED DESCRIPTION

[0027] 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 merely illustrative. The micro-powder 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.

[0028] Reference Figure 2The present invention provides a micro-powder burner, comprising a micro-powder silo 1, a spiral conveying mechanism 2 is fixedly connected to the bottom end of the micro-powder silo 1, a feeding pipe 3 is fixedly connected to the bottom end of the spiral conveying mechanism 2, a mixing pipe 10 is fixedly connected to the bottom end of the feeding pipe 3, a primary feeding fan 4 is fixedly connected to one side of the mixing pipe 10, an air inlet pipe 5 is fixedly connected to the other side of the mixing pipe 10, a secondary air port 7 is fixedly connected to the side of the air inlet pipe 5, a side of the secondary air port 7 away from the air inlet pipe 5 can be externally connected to a fan, a side of the air inlet pipe 5 away from the primary feeding fan 4 is fixedly connected to a mixing combustion chamber 6, a side of the air inlet pipe 5 close to the mixing combustion chamber 6 is fixedly connected to an ignition gun 8, a control system 9 is fixedly connected to the side of the micro-powder silo 1, and the control system 9 also includes an input unit, a switching unit, a collection unit, an analysis unit, a supply unit and a control unit.

[0029] In the embodiment of the present application, when the micropowder burner of the present application is working, the spiral conveying mechanism 2 can automatically load the micropowder, and the feeding amount can be freely adjusted. After the micropowder is loaded, the primary feeding fan 4 is ventilated to mix with it, and the secondary air port 7 can be ventilated again, first for secondary mixing, and then the mixing between the micropowder and the air is more uniform, so that it burns fully, the dust generated is smaller, and the integrated intelligent combustion work can be realized.

[0030] Reference Figure 2 - Figure 6 The screw conveying mechanism 2 includes a servo motor 202 for providing power, the bottom end of the servo motor 202 is fixedly connected to a motor support 201, the output shaft of the servo motor 202 is fixedly connected to a threaded rod 203, the side of the threaded rod 203 away from the servo motor 202 is movably connected to a stabilizing support 204, the side of the motor support 201 away from the servo motor 202 is fixedly connected to a feeding cylinder 205, the side of the feeding cylinder 205 away from the motor support 201 is fixedly connected to the side of the stabilizing support 204, and the mixing combustion chamber 6 includes an inner cylinder 6 fixedly connected to the mixing tube 10. 02 and an outer cylinder 601 fixedly connected to the air inlet pipe 5, the inner cylinder 602 is movably connected to the outer blades 604, the outer side of the inner cylinder 602 away from the outer blades 604 is fixedly connected to the inner blades 603, the mixing tube 10 is located inside the air inlet pipe 5, and one side of the mixing tube 10 is fixedly connected to the side of the inner cylinder 602, and the other side of the mixing tube 10 is fixedly connected to the side of the primary feeding fan 4, the gas in the primary feeding fan 4 enters into the mixing tube 10, and the gas in the secondary air port 7 enters between the outer side of the mixing tube 10 and the inner side of the air inlet pipe 5.

[0031] In the embodiment of the present application, the servo motor 202 in the screw conveying mechanism 2 drives the threaded rod 203 to rotate, so that the powder in the powder silo 1 can enter the discharge pipe 3 to complete the loading work. The servo motor 202 can be supported by the motor support 201, and the threaded rod 203 is supported by the motor support 201 and the stable support 204 to ensure the stability of the screw conveying mechanism 2 during overall operation. The powder and the primary feeding fan 4 are mixed for the first time when flowing through the external blades 604 in the mixing combustion chamber 6, and the air introduced into the secondary air port 7 passes through the space formed by the air inlet pipe 5 and the mixing tube 10. After passing through the internal blades 603, the powder and air after the first mixing are mixed for the second time to improve the mixing effect. The air inlet pipe 5 and the mixing tube 10 separate the secondary air port 7 from the primary feeding fan 4, so the primary feeding fan 4 can be selected to work alone, or both can work at the same time.

[0032] Reference Figure 1 The input unit is used to input the combustion temperature that the micro-powder burner needs to reach. The switching unit switches between the primary feeding fan 4 working alone and the primary feeding fan 4 working together with the secondary air port 7. The acquisition unit is used to collect data information when the micro-powder burner is working. The analysis unit receives the data collected by the acquisition unit and calculates and then sends instructions to the control unit. The control unit receives the instructions sent by the analysis unit and controls the operation of the spiral conveying mechanism 2, the primary feeding fan 4 and the secondary air port 7. The supply unit is used to control the micro-powder supply amount of the spiral conveying mechanism 2. A temperature threshold Y is set in the switching unit. The switching unit compares the set combustion temperature BZ that the burner input by the input unit needs to reach with its internal temperature threshold Y. When the combustion temperature BZ is less than the temperature threshold Y, the switching unit sends a primary air instruction to the control unit. The control unit receives the primary air instruction and controls the primary feeding fan 4 to work alone. When the combustion temperature BZ required to be generated is ≥ the temperature threshold Y, the switching unit sends a secondary air instruction to the control unit. The control unit receives the secondary air instruction and controls the primary feeding fan 4 and the secondary air port 7 to supply air together.

[0033] In the embodiment of the present application, when the burner is in use, the temperature required for combustion is different. If the required temperature is low, it is wasteful to use the primary feed fan 4 and the secondary air port 7 to supply air together. Therefore, the air can be supplied by a single primary feed fan 4. When the required temperature is high, the primary feed fan 4 and the secondary air port 7 can supply air together to ensure that the micropowder and the air can be mixed more thoroughly, so that they can be fully burned, thereby increasing the combustion temperature and reducing the output of dust.

[0034] Reference Figure 1The collection unit includes a pre-combustion collection module and a post-combustion collection module. The pre-combustion collection module collects the first air volume data information FL1 generated by the primary feeding fan 4, the second air volume data information FL2 introduced into the secondary air port 7, and the micro-powder amount data information WF supplied by the spiral conveying mechanism 2. The post-combustion collection module collects the temperature data information WD during combustion and the dust amount data information HC generated per second after combustion. The pre-combustion collection module and the post-combustion collection module send the collected data information to the analysis unit.

[0035] In the embodiment of the present application, when the spiral conveying mechanism 2, the primary feeding fan 4 and the secondary air port 7 are providing micro-powder or air volume, the required values ​​will be input at this time. However, under the same numerical input, the actual micro-powder amount and air volume generated at this time will have a certain error. The present application collects the actual first air volume data information FL1, the second air volume data information FL2 and the micro-powder amount data information WF, and uses them as the standard for adjustment. If the actual first air volume data information FL1, the second air volume data information FL2 and the micro-powder amount data information WF are low, the input value at this time is increased to ensure the accuracy of the burner operation.

[0036] Furthermore, the analysis unit receives the data information collected by the post-combustion acquisition module and calculates the judgment value P. The calculation formula of the judgment value P is P=K(BZ-WD)+HC, where K is the amplification factor, BZ is the set combustion temperature to be reached by the burner, and its value is input by the input unit. The analysis unit is provided with a first error threshold W1 and a second error threshold W2 for comparison, and the first error threshold W1<the second error threshold W2. The analysis unit compares the judgment value P with the first error threshold W1 and the second error threshold W2 inside it. When the judgment value P≥the second error threshold W2, the analysis unit sends an increase instruction to the control unit. When the first error threshold W1<the judgment value P<the second error threshold W2, the analysis unit does not send an instruction. When the judgment value P≤the first error threshold W1, the analysis unit sends a decrease instruction to the control unit. The control unit receives the increase instruction and controls the air volume in the primary feed fan 4 and the air volume in the secondary air port 7 to increase. When the control unit receives the decrease instruction, it controls the air volume in the primary feed fan 4 and the air volume in the secondary air port 7 to decrease.

[0037] In the embodiment of the present application, the data information collected by the post-combustion acquisition module, the temperature data information WD and the dust amount data information HC are received. Through the two, it can be known whether the burner obtains the predetermined temperature when burning, and whether the amount of dust generated during combustion is large. When the predetermined temperature needs to be reached, the amount of micropowder required at this time can be within a certain range. The heat generated by air combustion is much smaller than that of micropowder. If the temperature is not reached, it means that less air is introduced at this time, so that the micropowder cannot be fully burned and more dust is generated. Therefore, the judgment value P calculated by the present application can represent the combustion situation. When the judgment value P ≥ the second error threshold W2, the dust is large at this time. , and the temperature is insufficient, so the amount of air introduced is increased, and when the judgment value P≤the first error threshold W1, the temperature is too high and there is no dust. The air volume can be appropriately reduced to reduce the working intensity of the primary feeding fan 4 and the secondary air port 7, thereby achieving the effect of energy saving. The first error threshold W1<judgment value P<second error threshold W2, at this time the micro powder can be fully burned, and the amount of air introduced is more appropriate, and the K in the calculation formula of the judgment value P is to amplify the error between the temperature and the standard temperature, so that the change in the judgment value P increases, and the first air volume data information FL1 and the second air volume data information FL2 can be adjusted in time, and its value can be set by the management personnel according to the actual situation.

[0038] Further, the supply unit adjusts the micro powder amount data information WF supplied by the screw conveying mechanism 2, and the supply unit calculates the temperature coefficient XS when the micro powder is burned. The calculation formula of the temperature coefficient XS is: Where n is the total number of tests, i is the current i-th test, BZ i is the standard temperature to be reached for the i-th time, WF i is the amount of micro powder required to reach the standard temperature BZi for the i-th time. The calculation formula of the micro powder amount data information WF is: BZ is the set combustion temperature that the burner is to reach, and when the temperature coefficient XS is calculated, the micro powder is in a fully combusted state.

[0039] In the embodiment of the present application, when supplying the amount of micropowder, the required amount of micropowder is different at different temperatures. The present application first calculates the temperature coefficient XS. At this time, the heat that can be generated by the differential under unit conditions can be obtained. When the required temperature is known, the required micropowder amount data information WF can be obtained by dividing it by the temperature coefficient XS, so that the micropowder amount data information WF is more accurate. Therefore, when combustion is performed, it is possible to avoid providing too much or too little micropowder.

[0040] The working principle of the present invention is as follows: when the combustion work is carried out, the servo motor 202 in the spiral conveying mechanism 2 drives the threaded rod 203 to rotate, so that the powder in the powder silo 1 can enter the discharge pipe 3 to complete the feeding work, and the powder in the discharge pipe 3 will enter the mixing tube 10. At this time, the primary feeding fan 4 provides air, so the powder and the primary feeding fan 4 move together in the mixing combustion chamber 6, and when flowing through the external blades 604 in the mixing combustion chamber 6, the first mixing is carried out, and the air introduced into the secondary air port 7 passes through the space formed by the air inlet pipe 5 and the mixing tube 10, and after passing through the internal blades 603, the powder and air after the first mixing are mixed for the second time, thereby improving the mixing effect, and the air inlet pipe 5 and the mixing tube 10 separate the secondary air port 7 from the primary feeding fan 4, so the primary feeding fan 4 can be selected to work alone, or both can work at the same time.

[0041] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. A person skilled in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0043] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0044] 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

1. A micro powder burner, comprising a micro powder silo (1), characterized in that: The bottom end of the micro-powder silo (1) is fixedly connected to a screw conveying mechanism (2), the bottom end of the screw conveying mechanism (2) is fixedly connected to a feeding pipe (3), the bottom end of the feeding pipe (3) is fixedly connected to a mixing pipe (10), one side of the mixing pipe (10) is fixedly connected to a primary feeding fan (4), the other side of the mixing pipe (10) is fixedly connected to an air inlet pipe (5), the side of the air inlet pipe (5) is fixedly connected to a secondary air port (7), the side of the secondary air port (7) away from the air inlet pipe (5) can be connected to an external fan, the side of the air inlet pipe (5) away from the primary feeding fan (4) is fixedly connected to a mixing combustion chamber (6), the side of the air inlet pipe (5) close to the mixing combustion chamber (6) is fixedly connected to an ignition gun (8), and the side of the micro-powder silo (1) is fixedly connected to a control system (9), and the control system (9) also includes an input unit, a switching unit, a collection unit, an analysis unit, a supply unit and a control unit; The mixing combustion chamber (6) comprises an inner cylinder (602) fixedly connected to the mixing tube (10) and an outer cylinder (601) fixedly connected to the air inlet pipe (5); the inner cylinder (602) is movably connected to the outer blades (604); and the outer side of the inner cylinder (602) away from the outer blades (604) is fixedly connected to the inner blades (603); The mixing tube (10) is located inside the air inlet pipe (5), and one side of the mixing tube (10) is fixedly connected to the side of the inner cylinder (602), and the other side of the mixing tube (10) is fixedly connected to the side of the primary feeding fan (4), the gas in the primary feeding fan (4) enters into the mixing tube (10), and the gas in the secondary air port (7) enters between the outer side of the mixing tube (10) and the inner side of the air inlet pipe (5); The input unit is used to input the combustion temperature that the micro-powder burner needs to reach; the switching unit switches between the primary feed fan (4) working alone and the primary feed fan (4) and the secondary air port (7) working together; the acquisition unit is used to acquire data information when the micro-powder burner is working; the analysis unit receives the data collected by the acquisition unit, performs calculations, and then sends instructions to the control unit; the control unit receives the instructions sent by the analysis unit and controls the operation of the screw conveying mechanism (2), the primary feed fan (4), and the secondary air port (7); and the supply unit is used to control the micro-powder supply amount of the screw conveying mechanism (2); The switching unit is provided with a temperature threshold value Y. The switching unit compares the set combustion temperature BZ to be reached by the burner input by the input unit with its internal temperature threshold value Y. When the combustion temperature BZ is less than the temperature threshold value Y, the switching unit sends a primary air command to the control unit. The control unit receives the primary air command and controls the primary feed fan (4) to work alone. When the combustion temperature BZ to be generated is greater than or equal to the temperature threshold value Y, the switching unit sends a secondary air command to the control unit. The control unit receives the secondary air command and controls the primary feed fan (4) and the secondary air port (7) to supply air together. The acquisition unit comprises a pre-combustion acquisition module and a post-combustion acquisition module, wherein the pre-combustion acquisition module acquires first air volume data information FL1 generated by the primary feeding fan (4), second air volume data information FL2 introduced into the secondary air port (7), and micro powder quantity data information WF supplied by the screw conveying mechanism (2), and the post-combustion acquisition module acquires temperature data information WD during combustion and dust quantity data information HC generated per second after combustion, and the pre-combustion acquisition module and the post-combustion acquisition module send the acquired data information to the analysis unit; The analysis unit receives the data information collected by the post-combustion acquisition module and calculates the judgment value P. The calculation formula of the judgment value P is P=K(BZ-WD)+HC, where K is the amplification factor, BZ is the set combustion temperature to be reached by the burner, and its value is input by the input unit. The analysis unit is provided with a first error threshold W1 and a second error threshold W2 for comparison, and the first error threshold W1<the second error threshold W2; The analysis unit compares the judgment value P with the first error threshold W1 and the second error threshold W2 within the analysis unit. When the judgment value P ≥ the second error threshold W2, the analysis unit sends an increase instruction to the control unit. When the first error threshold W1 < the judgment value P < the second error threshold W2, the analysis unit does not send an instruction. When the judgment value P ≤ the first error threshold W1, the analysis unit sends a decrease instruction to the control unit. The control unit receives the increase instruction and controls the air volume in the primary feed fan (4) and the air volume in the secondary air port (7) to increase. When the control unit receives the decrease instruction, it controls the air volume in the primary feed fan (4) and the air volume in the secondary air port (7) to decrease. The supply unit adjusts the micro-powder quantity data information WF supplied by the screw conveying mechanism (2), and calculates the temperature coefficient XS when the micro-powder is burned. The calculation formula of the temperature coefficient XS is: Where n is the total number of tests, i is the current i-th test, BZi is the standard temperature to be reached for the i-th time, WFi is the amount of micropowder required to reach the standard temperature BZi for the i-th time, and the calculation formula for the micropowder amount data information WF is: BZ is the set combustion temperature that the burner is to reach, and when the temperature coefficient XS is calculated, the micro powder is in a fully combusted state.

2. A micro powder burner according to claim 1, characterized in that: The screw conveying mechanism (2) comprises a servo motor (202) for providing power, the bottom end of the servo motor (202) is fixedly connected to a motor support (201), the output shaft of the servo motor (202) is fixedly connected to a threaded rod (203), the side of the threaded rod (203) away from the servo motor (202) is movably connected to a stabilizing support (204), the side of the motor support (201) away from the servo motor (202) is fixedly connected to a loading cylinder (205), and the side of the loading cylinder (205) away from the motor support (201) is fixedly connected to the side of the stabilizing support (204).

Images