Pulverized coal anti-slagging combustion system

Abstract

The utility model discloses a pulverized coal anti-slag-bonding combustion system which comprises a boiler, a combustion chamber, an adsorbent nozzle, a combustion chamber, a combustion chamber, a combustion chamber and a combustion chamber, and the boiler is provided with a hearth used for combusting pulverized coal and provided with an adsorbent nozzle; and the supply device is communicated with the adsorbent nozzle and supplies the anti-slagging adsorbent, so that the anti-slagging adsorbent is sprayed into the hearth through the adsorbent nozzle. According to the utility model, the adsorbent nozzle is arranged in the hearth, the supply device is communicated with the adsorbent nozzle and supplies the anti-slagging adsorbent, the anti-slagging adsorbent is sprayed to the center position or the peripheral space of the flame, the anti-slagging adsorbent can fully adsorb sodium steam and is more targeted, the utilization rate of the anti-slagging adsorbent is improved, and the service life of the anti-slagging adsorbent is prolonged. The waste of the anti-slagging adsorbent is avoided, and the slagging phenomenon of the inner wall of the hearth is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a pulverized coal anti-slagging combustion system. Background Art

[0002] Zhundong coal is a high-quality thermal coal due to its easy ignition and low ash content. The content of alkali metals and alkaline earth metals in Zhundong coal is relatively high. For example, the sodium content far exceeds the sodium content of typical bituminous coal and even lignite in my country. It can easily cause serious slagging on the inner wall of the boiler furnace, resulting in reduced boiler heat transfer efficiency, unstable operating load and operational safety problems.

[0003] In the related art, anti-slagging adsorbent is mixed into Zhundong coal, and the Zhundong coal mixed with the anti-slagging adsorbent is transported to the boiler for combustion together to slow down the slagging phenomenon during the combustion of Zhundong coal. However, the above solution causes waste of the anti-slagging adsorbent. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a pulverized coal anti-slagging combustion system, which avoids the waste of anti-slagging adsorbent and improves the slagging phenomenon.

[0005] According to an embodiment of the present invention, a pulverized coal anti-slagging combustion system includes: a boiler having a furnace, the furnace being used to burn pulverized coal, and an adsorbent nozzle being provided on the furnace; a supply device, the supply device being connected to the adsorbent nozzle and supplying an anti-slagging adsorbent so that the anti-slagging adsorbent is sprayed into the furnace through the adsorbent nozzle.

[0006] According to the pulverized coal anti-slagging combustion system of the embodiment of the present invention, an adsorbent nozzle is arranged in the furnace, and a supply device is connected to the adsorbent nozzle and supplies anti-slagging adsorbent, wherein the supply device applies power to the anti-slagging adsorbent so that the anti-slagging adsorbent is sprayed into the furnace, and the anti-slagging adsorbent is sprayed to the center of the flame or the surrounding space. The anti-slagging adsorbent can fully adsorb sodium vapor, is more targeted, improves the utilization rate of the anti-slagging adsorbent, avoids the waste of the anti-slagging adsorbent, and improves the slagging phenomenon.

[0007] In some embodiments, a nozzle member is provided on the furnace, and the adsorbent nozzle is provided on the nozzle member; wherein, the nozzle member is rotatable to adjust the spraying direction of the adsorbent nozzle.

[0008] In some embodiments, the pulverized coal anti-slagging combustion system also includes a driving device, which includes: a transmission rod, which is movably arranged and connected to the nozzle part; a driving structure, wherein the output end of the driving structure is constructed as a rotating part, and the rotating part is connected to the transmission rod to drive the nozzle part to rotate.

[0009] In some embodiments, the boiler is provided with a ventilation duct, the ventilation duct is sleeved on the nozzle member, and the ventilation duct is used to communicate with the wind-making member to cool the nozzle member.

[0010] In some embodiments, there are multiple adsorbent nozzles, and the multiple adsorbent nozzles are arranged at different heights of the furnace.

[0011] In some embodiments, the boiler has a side surface and a mounting surface, the side surfaces are multiple, the mounting surface is located between two adjacent side surfaces, and the adsorbent nozzle is located on the mounting surface.

[0012] In some embodiments, the number of the side surfaces is four, and the mounting surface is provided between each two adjacent side surfaces.

[0013] In some embodiments, the adsorbent nozzle is provided in plurality, and the plurality of adsorbent nozzles are spaced apart in the circumferential direction of the boiler. In the circumferential direction, the orientations of the plurality of adsorbent nozzles are provided to deviate from the center of the boiler in the same direction to form an adsorption space.

[0014] In some embodiments, the supply device includes: a supply pipe, which is connected to the adsorbent nozzle; a storage bin, which is used to store the anti-slagging adsorbent and is connected to the supply pipe to supply the anti-slagging adsorbent to the supply pipe; and a fan, which is connected to the supply pipe to guide the anti-slagging adsorbent in the storage bin to the adsorbent nozzle.

[0015] In some embodiments, a first switch valve is provided on the supply pipe, and the first switch valve is provided at the air outlet of the fan. There are multiple adsorbent nozzles, and a sub-pipe is provided on the adsorbent nozzle. The sub-pipe is connected to the supply pipe, and a second switch valve is provided on the sub-pipe.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 Schematic diagram of a pulverized coal anti-slagging combustion system in an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Top view of the boiler;

[0020] Figure 3 for Figure 2 A partial enlarged view of point I in the middle;

[0021] Figure 4 This is a schematic structural diagram of a driving device in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the furnace temperature when the boiler is working at high load in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the furnace temperature when the boiler is working at low load in an embodiment of the present utility model.

[0024] Reference numerals:

[0025] 100. Pulverized coal anti-slagging combustion system;

[0026] 10. Boiler; 111. Nozzle assembly; 1111. Leak-proof bushing; 12. Adsorbent nozzle; 121. Sub-pipeline; 1211. Second on-off valve; 13. Ventilation duct; 14. Side; 15. Mounting surface;

[0027] 20. Supply device; 21. Supply pipeline; 211. First switch valve; 22. Storage bin; 23. Fan;

[0028] 30. Driving device; 31. Transmission rod; 32. Driving structure; 321. Rotating part. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0031] In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0032] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] The following describes a pulverized coal anti-slagging combustion system 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0035] Reference Figures 1 to 3 According to an embodiment of the present invention, a pulverized coal anti-slagging combustion system 100 includes: a boiler 10 and a supply device 20.

[0036] The boiler 10 has a furnace for burning pulverized coal and is provided with an adsorbent nozzle 12. A supply device 20 is connected to the adsorbent nozzle 12 and supplies an anti-slagging adsorbent so that the anti-slagging adsorbent is sprayed into the furnace through the adsorbent nozzle 12.

[0037] Zhundong coal is a high-quality thermal coal due to its easy ignition and low ash content. The content of alkali metals and alkaline earth metals in Zhundong coal is relatively high. For example, the sodium content far exceeds the sodium content of typical bituminous coal and even lignite in my country. It can easily cause serious slagging on the inner wall of the boiler furnace, resulting in reduced boiler heat transfer efficiency, unstable operating load and operational safety problems.

[0038] In the related art, anti-slagging adsorbent is mixed into Zhundong coal, and the Zhundong coal mixed with the anti-slagging adsorbent is transported to the boiler for combustion together to slow down the slagging phenomenon during the combustion of Zhundong coal. However, the above solution causes waste of the anti-slagging adsorbent.

[0039] Among them, during the combustion process of Zhundong coal, sodium is released rapidly at 400-600℃, and the sodium released below 1000℃ is mainly water-soluble sodium and organic sodium. Under the combustion conditions above 1000℃, the sodium in Zhundong coal turns into sodium vapor, which adheres to the inner wall of the furnace, causing serious slagging on the inner wall of the furnace. Figure 5 、 Figure 6 As shown, the heat in the boiler is not completely uniform. The temperature at the center of the flame is higher, producing sodium vapor. The anti-slagging adsorbent at the center of the flame fully exerts its adsorption effect. The temperature at the surrounding positions is lower, producing water-soluble sodium and organic sodium. The anti-slagging adsorbent has poor adsorption effect on water-soluble sodium and organic sodium, resulting in waste of the anti-slagging adsorbent.

[0040] In the embodiment of the present invention, an adsorbent nozzle 12 is provided on the furnace, and a supply device 20 is connected to the adsorbent nozzle 12 and supplies an anti-slagging adsorbent, into which the anti-slagging adsorbent is mixed. The supply device 20 applies power to the anti-slagging adsorbent so that the anti-slagging adsorbent is sprayed into the furnace, and the anti-slagging adsorbent is sprayed to the center of the flame or the surrounding space. The anti-slagging adsorbent can fully adsorb sodium vapor, thereby improving the slagging phenomenon.

[0041] Compared with the solutions of the related art, the solution of the embodiment of the present invention sprays the anti-slagging adsorbent to the location where sodium vapor is generated, which is more targeted, improves the utilization rate of the anti-slagging adsorbent, and avoids waste of the anti-slagging adsorbent.

[0042] It should be noted that the coal powder in the embodiment of the present invention can be Zhundong coal powder or other types of coal. That is to say, the coal powder anti-slagging combustion system can burn other types of coal to achieve the effect of improving the utilization rate of the anti-slagging adsorbent and improving the slagging phenomenon.

[0043] Specifically, the anti-slagging adsorbent may be kaolin or the like.

[0044] For example, if 100 kg of kaolin is used as an anti-slagging adsorbent and is sprayed through the adsorbent nozzle 12 to the center of the flame, all 100 kg of kaolin can fully exert its adsorption effect. In the related art, when 100 kg of kaolin is mixed with Zhundong coal, only 50% of the kaolin may exert its adsorption effect, that is, 50 kg of kaolin exerts its adsorption effect. Obviously, the solution of the embodiment of the utility model improves the utilization rate of the anti-slagging adsorbent.

[0045] According to the pulverized coal anti-slagging combustion system 100 of the embodiment of the present invention, an adsorbent nozzle 12 is arranged in the furnace, and a supply device 20 is connected to the adsorbent nozzle 12 and supplies anti-slagging adsorbent, wherein the supply device 20 applies power to the anti-slagging adsorbent so that the anti-slagging adsorbent is sprayed into the furnace, and the anti-slagging adsorbent is sprayed to the center of the flame or the surrounding space. The anti-slagging adsorbent can fully adsorb sodium vapor, is more targeted, improves the utilization rate of the anti-slagging adsorbent, avoids the waste of the anti-slagging adsorbent, and improves the slagging phenomenon.

[0046] In some embodiments, a through hole is opened in the furnace, and the through hole is configured as an adsorbent nozzle 12, which has a simple structure.

[0047] Reference Figure 3 As shown, in other embodiments, a nozzle member 111 is provided on the furnace, and the adsorbent nozzle 12 is provided on the nozzle member 111 ; wherein, the nozzle member 111 is rotatable to adjust the spraying direction of the adsorbent nozzle 12 .

[0048] The nozzle member 111 is rotatably mounted on the furnace. That is, the nozzle member 111 can rotate relative to the furnace to adjust the orientation of the adsorbent nozzle 12 on the nozzle member 111, thereby adjusting the spray direction of the adsorbent nozzle 12 and changing the flow of the anti-slagging adsorbent. For example, the nozzle member 111 may have a rotating shaft that is movably connected to the boiler 10.

[0049] It can be understood that the operating load of the boiler 10 may change, that is, the range of the flame center will change. The embodiment of the utility model provides a rotatable nozzle part 111. During the entire operation of the pulverized coal anti-slagging combustion system 100, the nozzle part 111 can adjust the direction of the anti-slagging adsorbent, so that the anti-slagging adsorbent moves to the center position of the flame or the surrounding space, further improving the utilization rate of the anti-slagging adsorbent.

[0050] Reference Figure 4 As shown, in some embodiments, the pulverized coal anti-slagging combustion system 100 further includes a driving device 30 , and the driving device 30 includes: a transmission rod 31 and a driving structure 32 .

[0051] The transmission rod 31 is movably arranged and connected to the nozzle member 111. The output end of the driving structure 32 is configured as a rotating member 321, which is connected to the transmission rod 31 to drive the nozzle member 111 to rotate.

[0052] The rotating member 321 on the driving structure 32 rotates to drive the transmission rod 31 to move, and the transmission rod 31 drives the nozzle member 111 to rotate, thereby realizing the rotation of the nozzle member 111 .

[0053] In the above solution, the driving structure 32 drives the nozzle member 111 to rotate via the transmission rod 31, so that the driving structure 32 can be spaced a certain distance from the nozzle member 111, thereby preventing the driving structure 32 from being disturbed by high temperature and improving stability.

[0054] In other embodiments, the nozzle member 111 is connected to a rotary motor, which drives the nozzle member 111 to rotate, and the overall structure is simple.

[0055] Reference Figure 3 As shown, in some embodiments, a ventilation duct 13 is provided on the boiler 10 . The ventilation duct 13 is sleeved on the nozzle member 111 . The ventilation duct 13 is used to communicate with the wind-making member to cool the nozzle member 111 .

[0056] The ventilation duct 13 is externally mounted on the nozzle member 111. In other words, the nozzle member 111 is located within the ventilation duct 13. Air flows through the ventilation duct 13, and the flowing air cools the nozzle member 111. The air-generating member is used to generate airflow. Specifically, the air-generating fan 23 can generate airflow by means of turbine rotation or other methods. The air-generating fan 23 is conventional and will not be described in detail here.

[0057] In the above solution, the ventilation duct 13 is provided to connect with the wind-making member, and the flowing airflow is used to cool the nozzle member 111, thereby reducing the probability of the nozzle member 111 being deformed due to the high temperature of the furnace.

[0058] Reference Figure 1 As shown, in some embodiments, there are multiple adsorbent nozzles 12, and the multiple adsorbent nozzles 12 are arranged at different height positions in the furnace.

[0059] There are multiple adsorbent nozzles 12 , and the heights of the multiple adsorbent nozzles 12 are different.

[0060] It should be noted that the operating load of the boiler 10 is different and the flame center height is also different. The embodiment of the utility model sets a plurality of adsorbent nozzles 12 at different heights. According to the different operating loads of the boiler 10, the adsorbent nozzles 12 at corresponding heights can be opened, thereby further improving the targeting and improving the utilization rate of the anti-slagging adsorbent.

[0061] For example, three layers of adsorbent nozzles 12 at different heights are provided. When the boiler 10 is operating at full load, all the adsorbent nozzles 12 are opened. When the boiler 10 is operating at 70% load, the adsorbent nozzles 12 at the lower two layers are opened.

[0062] Reference Figure 2 As shown, in some embodiments, the boiler 10 has a side surface 14 and a mounting surface 15 . There are multiple side surfaces 14 . The mounting surface 15 is disposed between two adjacent side surfaces 14 . The adsorbent nozzle 12 is disposed on the mounting surface 15 .

[0063] The mounting surface 15 is provided between two adjacent side surfaces 14 , with one end of the mounting surface 15 connected to one side surface 14 and the other end connected to the other side surface 14 . The mounting surface 15 provides a mounting position for the adsorbent nozzle 12 .

[0064] In the above solution, by providing a mounting surface 15 between two adjacent side surfaces 14 and installing the adsorbent nozzle 12 on the mounting surface 15 , the overall structure is simplified and each part is more stable.

[0065] For example, there are four sides 14, and mounting surfaces 15 are set between two adjacent sides 14. There are four mounting surfaces 15, and the four mounting surfaces 15 are used to install the adsorbent nozzles 12. The adsorbent nozzles 12 are located at the four corners. The anti-slagging adsorbent sprayed from the adsorbent nozzles 12 can cover a larger volume of the furnace, thereby improving the coverage rate; or, there are other numbers of sides 14, and mounting surfaces 15 are set between two adjacent sides 14. Multiple mounting surfaces 15 are used to install the adsorbent nozzles 12. The adsorbent nozzles 12 are located at the corners. The anti-slagging adsorbent sprayed from the adsorbent nozzles 12 can cover a larger volume of the furnace, thereby increasing the coverage range of the anti-slagging adsorbent.

[0066] In some specific embodiments, a plurality of adsorbent nozzles 12 are provided on the same mounting surface 15 . The plurality of adsorbent nozzles 12 are located at different heights to adapt to different load conditions, thereby improving targeting.

[0067] In some embodiments, four side surfaces 14 are provided, and a mounting surface 15 is provided between each two adjacent side surfaces 14 .

[0068] In the above scheme, there are four side surfaces 14, and a mounting surface 15 is provided between each adjacent side surface 14. There are also four mounting surfaces 15. The four mounting surfaces 15 are used to set the adsorbent nozzles 12. That is to say, the adsorbent nozzles 12 are located at the four corners, covering more of the furnace, thereby increasing the coverage range of the anti-slagging adsorbent.

[0069] Reference Figure 6 As shown, in some embodiments, the adsorbent nozzle 12 is provided in plurality, and the plurality of adsorbent nozzles 12 are spaced apart in the circumferential direction of the boiler 10. In the circumferential direction, the orientations of the plurality of adsorbent nozzles 12 are provided to deviate from the center of the boiler 10 in the same direction to form an adsorption space.

[0070] In the circumferential direction, the orientations of the multiple adsorbent nozzles 12 are set to deviate from the center of the boiler 10 in the same direction. For example, the multiple adsorbent nozzles 12 are all clockwise away from the center of the boiler 10, or the multiple adsorbent nozzles 12 are all counterclockwise away from the center of the boiler 10. The orientations of the multiple adsorbent nozzles 12 are set to deviate from the center of the boiler 10 in the same direction. It can be understood that the anti-slagging adsorbent sprayed from the adsorbent nozzles 12 forms an adsorbent curtain. The multiple adsorbent curtains together define an adsorption space. The flame center is located in the adsorption space. The multiple adsorbent curtains surround the flame center. The multiple adsorbent curtains wrap the flame center. The anti-slagging adsorbent is between the flame and the furnace wall, and the anti-slagging adsorbent can fully contact the sodium vapor.

[0071] In the above scheme, by setting the orientation of multiple adsorbent nozzles 12 to deviate from the center of the boiler 10 in the same direction, an adsorption space is formed, so that the anti-slagging adsorbent can fully contact the sodium vapor, further improving the utilization rate of the anti-slagging adsorbent and improving the slagging phenomenon.

[0072] For example, when the boiler 10 is operating at high load, Figure 5 As shown, the area with higher temperature is larger, and the anti-slagging adsorbent sprayed from the adsorbent nozzle 12 is close to the furnace wall; when the boiler 10 is running at low load, refer to Figure 6 As shown, the area of ​​the region with higher temperature is smaller, and the angle between the injection direction of the adsorbent nozzle 12 and the furnace wall is larger, so that the adsorbent curtain fits the area with higher temperature.

[0073] Reference Figure 1 As shown, in some embodiments, the supply device 20 includes: a supply pipe 21 , a storage bin 22 and a fan 23 .

[0074] The supply pipe 21 is connected to the adsorbent nozzle 12. The storage bin 22 is used to store the anti-slagging adsorbent and is connected to the supply pipe 21 to supply the anti-slagging adsorbent to the supply pipe 21. The fan 23 is connected to the supply pipe 21 to guide the anti-slagging adsorbent in the storage bin 22 to the adsorbent nozzle 12.

[0075] Among them, the fan 23 is connected to the supply pipe 21, and the fan 23 generates a flowing airflow to drive the anti-slagging adsorbent to flow to the adsorbent nozzle 12. The fan 23 gives the anti-slagging adsorbent power, so that the anti-slagging adsorbent is sprayed into the furnace from the adsorbent nozzle 12.

[0076] In the above solution, the fan 23 is provided to guide the anti-slagging adsorbent in the storage bin 22 to the adsorbent nozzle 12. The anti-slagging adsorbent has power, the overall structure is simple, and the anti-slagging adsorbent is easy to transport.

[0077] For example, the fan 23 is connected to the supply pipe 21 , and the flowing airflow creates negative pressure, so that the anti-slagging adsorbent in the storage bin 22 is sucked into the supply pipe 21 , and the anti-slagging adsorbent flows to the adsorbent nozzle 12 along with the airflow.

[0078] Reference Figure 1 As shown, in some embodiments, a first switch valve 211 is provided on the supply pipe 21, and the first switch valve 211 is provided at the air outlet of the fan 23. There are multiple adsorbent nozzles 12, and a sub-pipeline 121 is provided on the adsorbent nozzle 12. The sub-pipeline 121 is connected to the supply pipe 21, and a second switch valve 1211 is provided on the sub-pipeline 121.

[0079] The first on-off valve 211 is used to control the on / off of the supply pipe 21, and the second on-off valve 1211 is used to control the on / off of the sub-pipeline 121. There are multiple adsorbent nozzles 12, each of which is provided with a sub-pipeline 121. Each of the multiple adsorbent nozzles 12 is provided with a corresponding sub-pipeline 121. In other words, there are multiple sub-pipelines 121, and the second on-off valve 1211 controls each of the multiple adsorbent nozzles 12.

[0080] In the above solution, by providing the first switch valve 211 on the supply pipe 21 and the second switch valve 1211 on the sub-pipeline 121 , each pipe is controlled separately, thereby improving controllability and making regulation more precise.

[0081] For example, there are three adsorbent nozzles 12, and the three adsorbent nozzles 12 are set at three heights. Three sub-pipes 121 are corresponding to the four adsorbent nozzles 12, and a second switch valve 1211 is set on the sub-pipe 121. The three sub-pipes 121 are connected to the same supply pipe 21. The on-off of the sub-pipes 121 corresponding to the adsorbent nozzles 12 at different heights can be adjusted according to the operating load of different boilers 10, and the anti-slagging adsorbent can be accurately transported to the furnace to prevent slagging during combustion of Zhundong coal.

[0082] In some specific embodiments, the adsorbent nozzle 12 is provided on the nozzle member 111 , and a leak-proof bushing 1111 is provided between the nozzle member 111 and the sub-pipeline 121 to reduce the probability of leakage of the anti-slagging adsorbent.

[0083] The following combination Figures 1 to 4 , describing a specific embodiment of the pulverized coal anti-slagging combustion system 100 of the present invention.

[0084] A pulverized coal anti-slagging combustion system 100 includes a boiler 10 , a supply device 20 , and a drive device 30 .

[0085] The boiler 10 has four side surfaces 14 and four mounting surfaces 15. A furnace is also provided within the boiler 10. The mounting surface 15 is located between two adjacent side surfaces 14 and is used to mount a nozzle member 111. The nozzle member 111 is provided with an adsorbent nozzle 12. The nozzle member 111 is connected to a sub-pipeline 121 via a leak-proof bushing 1111. The sub-pipeline 121 is provided with a second on-off valve 1211. The nozzle member 111 is sheathed with a ventilation duct 13. The supply device 20 includes a supply duct 21, a storage bin 22, and a fan 23. The drive device 30 includes a transmission rod 31 and a drive structure 32. The output end of the drive structure 32 is configured as a rotating member 321.

[0086] The boiler 10 has a furnace for coal powder combustion; the storage bin is used to store anti-slagging adsorbent; the fan 23 is connected to the storage bin through the supply pipe 21 to provide power for transporting the anti-slagging adsorbent to the furnace; the second switch valve 1211 is installed on the sub-pipeline 121 to control the on-off of the sub-pipeline 121 corresponding to the adsorbent nozzles 12 at different heights; the sub-pipeline 121 is connected to the boiler 10 through the supply pipe 21, and the sub-pipeline 121 is set to three layers, which can adjust the on-off of the sub-pipelines 121 at different heights according to the operating load of different boilers 10, and accurately transport the anti-slagging adsorbent to the furnace to prevent slagging during combustion of Zhundong coal; the adsorbent nozzle 12 is connected to the sub-pipeline 121, and the adsorbent nozzle 12 is used The nozzle member 111 can swing in the horizontal direction, and the angle at which the anti-slagging adsorbent is sprayed into the furnace can be adjusted according to the operating status of the boiler 10; a leak-proof bushing 1111 is installed between the sub-pipe 121 and the nozzle member 111 to prevent the anti-slagging adsorbent from leaking when the nozzle member 111 swings; the transmission rod 31 is connected to the nozzle member 111, and the other end is connected to the rotating member 321 of the driving structure 32 to provide a power source for adjusting the angle of the nozzle member 111; the ventilation duct 13 includes the nozzle member 111 as a whole, and the other side is connected to the fan 23 to provide cooling air for the nozzle member 111 to prevent the nozzle member 111 from deforming due to excessive furnace temperature.

[0087] Other structures and operations of the pulverized coal anti-slagging combustion system 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0088] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0089] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pulverized coal anti-slagging combustion system, characterized in that: include: A boiler (10), the boiler (10) having a furnace, the furnace being used to burn pulverized coal, the furnace being provided with an adsorbent nozzle (12); A supply device (20) is connected to the adsorbent nozzle (12) and supplies an anti-slagging adsorbent, so that the anti-slagging adsorbent is sprayed into the furnace through the adsorbent nozzle (12).

2. The pulverized coal anti-slagging combustion system according to claim 1, characterized in that: The furnace is provided with a nozzle member (111), and the adsorbent nozzle (12) is provided on the nozzle member (111); wherein: The nozzle member (111) can be rotatably arranged to adjust the spraying direction of the adsorbent nozzle (12).

3. The pulverized coal anti-slagging combustion system according to claim 2, characterized in that: The invention also comprises a driving device (30), wherein the driving device (30) comprises: A transmission rod (31), wherein the transmission rod (31) is movably arranged and connected to the nozzle member (111); A driving structure (32), wherein an output end of the driving structure (32) is configured as a rotating member (321), and the rotating member (321) is connected to the transmission rod (31) to drive the nozzle member (111) to rotate.

4. The pulverized coal anti-slagging combustion system according to claim 3, characterized in that: The boiler (10) is provided with a ventilation duct (13), the ventilation duct (13) is sleeved on the nozzle member (111), and the ventilation duct (13) is used to connect with the wind-making member to cool the nozzle member (111).

5. The pulverized coal anti-slagging combustion system according to claim 1, characterized in that: There are a plurality of adsorbent nozzles (12), and the plurality of adsorbent nozzles (12) are arranged at different height positions of the furnace.

6. The pulverized coal anti-slagging combustion system according to claim 5, characterized in that: The boiler (10) has a side surface (14) and a mounting surface (15), the side surfaces (14) are multiple, the mounting surface (15) is arranged between two adjacent side surfaces (14), and the adsorbent nozzle (12) is arranged on the mounting surface (15).

7. The pulverized coal anti-slagging combustion system according to claim 6, characterized in that: The side surfaces (14) are arranged in four numbers, and the mounting surface (15) is arranged between two adjacent side surfaces (14).

8. The pulverized coal anti-slagging combustion system according to claim 5, characterized in that: The adsorbent nozzles (12) are provided in a plurality, and the plurality of adsorbent nozzles (12) are arranged at intervals in the circumferential direction of the boiler (10). In the circumferential direction, the orientations of the plurality of adsorbent nozzles (12) are arranged to deviate from the center of the boiler (10) in the same direction to form an adsorption space.

9. The pulverized coal anti-slagging combustion system according to claim 1, characterized in that: The supply device (20) comprises: A supply pipeline (21), wherein the supply pipeline (21) is connected to the adsorbent nozzle (12); a storage bin (22), the storage bin (22) being used to store the anti-slagging adsorbent and being connected to the supply pipeline (21) so as to supply the anti-slagging adsorbent to the supply pipeline (21); A fan (23), the fan (23) being connected to the supply pipeline (21) to guide the anti-slagging adsorbent in the storage bin (22) to the adsorbent nozzle (12).

10. The pulverized coal anti-slagging combustion system according to claim 9, characterized in that: The supply pipe (21) is provided with a first switch valve (211), and the first switch valve (211) is arranged at the air outlet of the fan (23). There are multiple adsorbent nozzles (12), and a sub-pipe (121) is provided on the adsorbent nozzle (12), and the sub-pipe (121) is connected to the supply pipe (21), and the sub-pipe (121) is provided with a second switch valve (1211).

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