External pulverized coal conveying system of adjacent furnace pulverized coal conveyor

Abstract

The utility model provides an external pulverized coal conveying system of an adjacent furnace pulverized coal conveyor. The external pulverized coal conveying system comprises a pulverized coal production line, a conveying pipe, a supporting frame and a storage bin. The pulverized coal production line is provided with a pulverized coal conveyor, and a guide-out opening is formed in the bottom side wall of the pulverized coal conveyor. The storage bin is arranged on the supporting frame, and the top of the storage bin is lower than the bottom of the powder conveyor; a conveying pipe is arranged in the vertical direction, an included angle is formed between the conveying pipe and the vertical direction, a feeding opening in the upper end of the conveying pipe is connected with the guiding-out opening, a blocking valve is installed at the feeding opening in the upper end, and a discharging opening in the lower end of the conveying pipe is connected with the top of the storage bin. According to the external pulverized coal conveying system of the adjacent furnace pulverized coal conveyor, the inclined conveying pipe is arranged, the two ends of the conveying pipe are connected with the pulverized coal conveyor and the storage bin respectively, and part of pulverized coal in the pulverized coal conveyor is led out and stored in the storage bin, so that an original closed coal pulverizing system can output the pulverized coal, and the pulverized coal can be stored, transferred and used; the pulverized coal stored in the storage bin can be used for emergency.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal power generation, and in particular relates to a coal powder conveying system outside a furnace powder conveyor. Background Art

[0002] The pulverizing system of coal-fired power generation units is a central storage pulverizing system. Its task is to dry and grind the raw coal to make the pulverized coal required for boiler combustion and send it into the furnace for combustion. It consists of a raw coal bunker, a coal feeder, a coal mill, a coarse and fine powder separator, a powder discharger, a powder feeder, a powder conveyor, a pulverized coal bunker and various pipelines. There is a motor at each end of the powder conveyor to drive the powder conveyor to rotate in the forward and reverse directions. Therefore, it can not only transport the pulverized coal from the pulverizing system of furnace A to the pulverized coal bunker of furnace B, but also transport the pulverized coal from furnace B to the pulverized coal bunker of furnace A.

[0003] However, the existing pulverizing system is a completely closed system. After the coal powder is stored in the coal powder bin, it is directly introduced into the boiler for thermal power generation. When the outside world needs emergency coal powder, the pulverizing system cannot transport the coal powder to the outside world, resulting in additional purchase costs. The coal powder cannot be taken out. The pulverizing system has great limitations, which affects the demand for coal powder from the outside world. Utility Model Content

[0004] The embodiment of the utility model provides a system for conveying pulverized coal to the outside of a furnace pulverizer, aiming to solve the technical problem that the pulverizing system in the prior art cannot convey pulverized coal to the outside and has high usage limitations.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a coal powder conveying system for a coal powder conveying machine near the furnace, comprising:

[0006] A pulverized coal production line is provided with a pulverized coal conveyor, wherein a discharge opening is provided on the bottom side wall of the pulverized coal conveyor;

[0007] A support frame is arranged on the side of the pulverized coal production line;

[0008] A storage bin is disposed on the support frame, and the top of the storage bin is lower than the bottom of the powder conveyor; and

[0009] The conveying pipe is arranged at an angle with the up-down direction, the upper feed port of the conveying pipe is connected with the outlet opening, the upper feed port is equipped with a blocking valve, and the lower outlet of the conveying pipe is connected with the top of the storage bin.

[0010] In a possible implementation, a safety valve is provided at the discharge end of the delivery pipe.

[0011] In a possible implementation, the storage bin is connected to an inert gas inlet pipe.

[0012] In a possible implementation, a temperature sensor is provided in the storage bin.

[0013] In a possible implementation, the storage bin is connected to a negative pressure pipe, and the negative pressure pipe is used to extract the air in the storage bin.

[0014] In a possible implementation, a material level monitor is provided in the storage bin, and the material level monitor is used to detect the accumulation height of the coal powder.

[0015] In a possible implementation, a conical funnel is provided at the bottom of the storage bin, a discharge pipe is connected to the bottom of the conical funnel, the bottom of the discharge pipe forms the discharge port, and a powder stirring assembly is connected between the discharge pipe and the conical funnel;

[0016] The powder-digging component comprises:

[0017] The powder-digging body has a powder-digging channel which runs through from top to bottom, and two ends of the powder-digging channel are respectively connected to the bottom opening of the conical funnel and the inlet of the discharge pipe;

[0018] an impeller rotatably disposed in the powder-moving channel and capable of moving the coal powder along its own circumference, wherein the rotation axis of the impeller is parallel to the horizontal direction and is rotatably connected to the side wall of the powder-moving channel, and one end of the rotation axis passes through the powder-moving channel; and

[0019] A driving member is arranged on the powder removing body, and an output shaft of the driving member is connected with a rotating shaft of the impeller through a synchronous chain transmission.

[0020] In a possible implementation, a dust collector is connected to one end of the discharge pipe close to the discharge port, and the dust collector is used to absorb coal powder overflowing from the discharge port.

[0021] In a possible implementation, the support frame includes:

[0022] Frame;

[0023] A first supporting platform is provided on the frame, the powder shifting assembly is provided on the first supporting platform, and the discharge port passes downward through the first supporting platform; and

[0024] The second supporting platform is arranged on the frame and is located above the second supporting platform. The storage bin is arranged on the second supporting platform. The conical funnel is located between the second supporting platform and the first supporting platform.

[0025] In a possible implementation, an explosion-proof opening is provided on the top of the storage bin.

[0026] The coal powder conveying system outside the furnace powder conveyor provided by the present application, compared with the prior art, has an outlet opening at the bottom of the powder conveyor, and is provided with an inclined conveying pipe, with both ends of the conveying pipe respectively connected to the outlet opening and the storage bin, so that part of the coal powder in the powder conveyor is led out and stored in the storage bin, so that the originally closed coal powder production line can output coal powder, and coal powder can be stored and transferred for use, which increases the usefulness of coal powder. The coal powder stored in the storage bin can be used for emergency use or sold, which improves the commercial value, increases additional income, and reduces the overall production cost. The inclined setting of the conveying pipe allows the coal powder to automatically fall to the storage bin under the influence of gravity, reducing the transportation cost; the height of the storage bin is lower than the coal powder production line, which is convenient for vehicles to drive to the storage bin to transport coal powder, saving transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the structure of a pulverized coal conveying system for a furnace pulverized coal conveyor provided in an embodiment of the utility model;

[0029] Figure 2 This is an assembly structure diagram of the support frame and storage bin used in the embodiment of the utility model;

[0030] Figure 3 This is an assembly cross-sectional view of the powder mixing assembly and storage bin used in the embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1. Delivery pipe; 11. Blocking valve; 12. Safety valve;

[0033] 2. Support frame; 21. Frame body; 22. First support platform; 23. Second support platform;

[0034] 3. Storage bin; 31. Inert gas inlet pipe; 32. Temperature sensor; 33. Negative pressure pipe; 34. Material level monitor; 35. Conical funnel; 36. Discharge pipe; 361. Discharge port; 37. Explosion-proof port; 38. Emergency valve;

[0035] 4. Powder-pumping assembly; 41. Powder-pumping body; 411. Powder-pumping channel; 42. Impeller; 43. Driving member; 44. Synchronous chain;

[0036] 5. Powder conveyor;

[0037] 6. Dust collector. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] It should be noted that the terms "length", "width", "height", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the 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 cannot be understood as a limitation on the utility model.

[0040] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0042] Please also read Figures 1 to 3 , the pulverized coal external conveying system of the powder feeder provided by the utility model is now described. The pulverized coal external conveying system of the powder feeder provided by the utility model comprises a pulverized coal production line, a conveying pipe 1, a support frame 2 and a storage bin 3. The pulverized coal production line has a powder feeder 5, and a lead-out opening (not shown) is provided on the bottom side wall of the powder feeder 5; the support frame 2 is arranged on the side of the pulverized coal production line; the storage bin 3 is erected on the support frame 2, and the top of the storage bin 3 is lower than the bottom of the powder feeder 5; the conveying pipe 1 is arranged at an angle with the up and down direction, the upper end feed port of the conveying pipe 1 is connected to the upper opening, the upper end feed port is equipped with a blocking valve 11, and the lower end discharge port of the conveying pipe 1 is connected to the top of the storage bin 3.

[0043] It should be noted that the storage bin 3 is made of 10 mm thick carbon steel plate.

[0044] As a specific implementation of the storage bin 3, the diameter of the storage bin 3 is 5.5 m, and the height of the straight section of the storage bin 3 is 6 m.

[0045] It should be noted that the working height of the pulverized coal production line is 30m, and vehicles cannot drive to the location of the pulverizing system.

[0046] It should be noted that the powder conveyor 5 can convey mixed materials with different particle sizes and can convey coal powder. In the present application, the powder conveyor 5 is opened at the bottom so that the closed internal space can be connected to the conveying pipe 1.

[0047] In order not to affect the installation of existing equipment and pipelines, the powder conveyor 5 of the present application extends along its own conveying direction, and an outlet opening is formed at the bottom end of the extension.

[0048] It should be noted that the angle between the conveying pipe 1 and the horizontal plane is greater than 60 degrees. The conveying pipe 1 is tilted from top to bottom, which can guide the coal powder to fall freely from the powder conveyor 5, reduce transportation costs, ensure that the coal powder does not stay in the conveying pipe 1, and avoid blockage of the conveying pipe 1.

[0049] It should be noted that a switch valve is provided at the discharge port 361 .

[0050] As a specific embodiment of the conveying pipe 1, the conveying pipe 1 is a stainless steel pipe with a diameter of 377 mm. The stainless steel material has good corrosion resistance and high structural strength, which can improve the safety of coal powder transportation. In addition, the stainless steel pipe has a long service life, which reduces the number of replacements of the conveying pipe 1 and reduces costs.

[0051] As a specific implementation of the blocking valve 11, the blocking valve 11 is an electric gate, which is arranged at the feed port of the conveying pipe 1, and can separate the conveying pipe 1 and the powder feeder 5, and seal the powder feeder 5 to ensure the sealing of the powder making system and avoid air entering the powder feeder 5 to cause safety hazards.

[0052] The coal powder conveying system outside the furnace powder conveyor provided in the present embodiment, compared with the prior art, has an outlet opening at the bottom of the powder conveyor 5, and is provided with an inclined conveying pipe 1, both ends of the conveying pipe 1 are respectively connected to the outlet opening and the storage bin 3, so that part of the coal powder in the powder conveyor 5 is led out and stored in the storage bin 3, so that the originally closed coal powder production line can output coal powder, and the coal powder can be stored and transferred for use, which increases the usefulness of the coal powder. The coal powder stored in the storage bin 3 can be used for emergency use or sold, which improves the commercial value, increases additional income, and reduces the overall production cost. The conveying pipe 1 is inclined so that the coal powder can automatically fall to the storage bin 3 under the influence of gravity, thereby reducing the transportation cost; the height of the storage bin 3 is lower than the coal powder production line, which is convenient for vehicles to drive to the storage bin 3 to transport coal powder, saving transportation costs.

[0053] In some embodiments, see Figure 1 A safety valve 12 is provided at the discharge end of the conveying pipe 1. The safety valve 12 can separate the conveying pipe 1 from the storage bin 3, and form a closed storage space in the storage bin 3, which can protect the coal powder and improve the safety of the storage bin 3. The safety valve 12 can cooperate with the blocking valve 11 to block the conveying pipe 1 at both ends, thereby improving the safety of the coal powder transportation process.

[0054] When the storage bin 3 is filled to a preset amount, the blocking valve 11 is closed, and no additional coal powder will fall into the storage bin 3. The safety valve 12 is closed, which can isolate the conveying pipe 1 and the storage bin 3, so that a closed space is formed in the storage bin 3, thereby facilitating the storage of coal powder.

[0055] When a gap appears on the conveying pipe 1, the safety valve 12 and the blocking valve 11 are blocked from both ends of the conveying pipe 1 respectively, so that the powder feeder 5 and the storage bin 3 are both in a closed state. The coal powder in the powder feeder 5 and the storage bin 3 will not come into contact with the air, thereby ensuring the safety of the coal powder.

[0056] In some embodiments, referring to the figure, the storage bin 3 is connected to an inert gas inlet pipe 31. The inert gas can isolate the air, and the inert gas is difficult to react chemically, and will not react with the coal powder, so that the entire storage bin 3 is in a safe state, which greatly improves the safety factor of the storage bin 3, and the inert gas protects the storage of the coal powder.

[0057] Optionally, the inert gas is carbon dioxide gas.

[0058] In some embodiments, see Figure 1 A temperature sensor 32 is provided in the storage bin 3. The temperature sensor 32 can sense the temperature in the storage bin 3, so that the staff can adjust the storage temperature in the storage bin 3 conveniently, so that the coal powder is stored within a safe temperature range, thereby improving the storage protection effect of the coal powder.

[0059] In specific implementation, the temperature sensor 32 may be a wireless temperature and humidity sensor or a wall-mounted temperature sensor.

[0060] In some embodiments, see Figure 1 The storage bin 3 is connected with a negative pressure pipe 33, which is used to extract the air in the storage bin 3. The negative pressure pipe 33 can extract the air in the storage bin 3 before the coal powder is transported, so as to avoid the mixing of air and coal powder, thereby improving the protection effect of coal powder and avoiding the mixing of coal powder and air and the explosion after the occurrence of open flame.

[0061] During the specific implementation, first close the blocking valve 11, open the safety valve 12, connect the conveying pipe 1 and the storage bin 3, block the discharge port 361, form a closed space between the storage bin 3 and the conveying pipe 1, open the inert gas inlet pipe 31 to introduce inert gas into the closed space, and at the same time open the negative pressure pipe 33 to extract the air in the closed space until the closed space is filled with inert gas to form a safe conveying space, then open the blocking valve to convey coal powder, close the inert gas inlet pipe 31, and do not close the negative pressure pipe 33 until the storage bin 3 is filled with coal powder.

[0062] In some embodiments, see Figure 1 The storage bin 3 is provided with a material level monitor 34, which is used to detect the stacking height of the pulverized coal. The material level detector 34 can detect the stacking height of the pulverized coal to ensure that the pulverized coal is stacked to a preset height, thereby ensuring that the total amount of pulverized coal in the storage bin 3 meets the use demand, and at the same time, the pulverized coal in the pulverizing system will not be excessively taken out, thereby ensuring the thermal power generation demand of the boiler.

[0063] In specific implementation, the material level detector 34 adopts an ultrasonic material level sensor, and may also adopt a radar material level meter.

[0064] In some embodiments, a CO detector may be provided inside the storage bin 3 to generate an alarm when a large amount of CO is generated inside the storage bin 3, so that the staff can take timely countermeasures to reduce the occurrence of safety accidents.

[0065] In some embodiments, see Figure 1 and Figure 2A conical funnel 35 is arranged at the bottom of the storage bin 3, a discharge pipe 36 is connected to the bottom of the conical funnel 35, a discharge port 361 is formed at the bottom of the discharge pipe 36, and a powder-moving assembly 4 is connected between the discharge pipe 36 and the conical funnel 35; the powder-moving assembly 4 comprises a powder-moving body 41, an impeller 42 and a driving member 43. The powder-moving body 41 has a powder-moving channel 411 which passes through from top to bottom, and the two ends of the powder-moving channel 411 are respectively connected to the bottom opening of the conical funnel 35 and the inlet of the discharge pipe 36; the impeller 42 is rotatably arranged in the powder-moving channel 411, and can move the coal powder along its own circumferential direction, the rotating shaft of the impeller 42 is parallel to the horizontal direction, and is rotatably connected to the side wall of the powder-moving channel 411, and one end of the rotating shaft passes through the powder-moving channel 411; the driving member 43 is arranged on the powder-moving body 41, and the output shaft of the driving member 43 is connected to the rotating shaft of the impeller 42 through a synchronous chain 44.

[0066] As an embodiment of the impeller 42, the impeller 42 includes a rotating shaft and a plurality of blades. The blades are arranged around the outer circumference of the rotating shaft, and the blade surfaces of the blades are parallel to the axis of the rotating shaft. When the rotating shaft rotates, the blade surfaces contact the coal powder, and the blades rotate to stir the coal powder.

[0067] In this embodiment, the setting of the conical funnel 35 can guide the coal powder to fall to the discharge pipe 36, and control the falling position and falling flow rate of the coal powder. The powder-splitting assembly 4 can stir the coal powder, ensure that the coal powder can fall quickly, avoid accumulation, and improve the falling efficiency of the coal powder. The impeller 42 rotates with the rotation of the driving member 43 under the drive of the synchronous chain 44, so that the coal powder is stirred by the impeller 42 in the powder-splitting channel 411, which speeds up the falling speed of the coal powder.

[0068] During specific implementation, the inclination angle of the conical funnel 35 is not less than 65°, and the coal powder will not accumulate in the conical funnel 35 .

[0069] It should be noted that the storage bin 3 has a straight section and a conical funnel section. The height of the straight section is 6m, and the volume of the storage bin 3 is 160m 3 .

[0070] In some embodiments, see Figure 3 An emergency valve 38 is provided on the pipeline between the conical funnel 35 and the powder-pumping body 41, so that after the vehicle is loaded with a predetermined capacity of coal powder, the emergency valve 38 is closed to avoid waste of coal powder.

[0071] In some embodiments, see Figure 2The end of the discharge pipe 36 near the discharge port 361 is connected to a dust collector 6, which is used to absorb the coal powder overflowing from the discharge port 361. The coal powder is light in weight and small in volume. In the process of falling into the vehicle storage tank, some of the coal powder will be separated from the main body of the coal powder. The dust collector 6 absorbs this part of the coal powder to prevent the coal powder from entering the air and polluting the environment. After the dust collector 6 absorbs the coal powder, it can be stored, which improves the recovery rate of the coal powder and reduces the loss of the coal powder.

[0072] During specific implementation, the dust collector 6 is a bag dust collector.

[0073] In some embodiments, see Figure 2 The support frame 2 includes a frame body 21, a first support platform 22 and a second support platform 23. The frame body 21 is vertically arranged on a first horizontal plane; the first support platform 22 is arranged on the frame body 21, the powder assembly 4 is arranged on the first support platform 22, and the discharge port 361 passes through the first support platform 22 downward; the second support platform 23 is arranged on the frame body 21 and is located above the second support platform 23, the storage bin 3 is arranged on the second support platform 23, and the conical funnel 35 is located between the second support platform 23 and the first support platform 22.

[0074] It should be noted that a vehicle pulverized coal receiving space is formed below the first supporting platform 22 , and when a vehicle drives below the first supporting platform, the opening of the storage tank of the vehicle is connected to the discharge port 361 , so that the pulverized coal can be taken out.

[0075] It should be noted that the first support platform 22 and the second support platform 23 are both provided with railings to improve the safety of the staff. The frame 21 is provided with an escalator, and the staff can climb to the first support platform 22 and the second support platform 23 via the escalator.

[0076] The support frame 2 provided in this embodiment has two platforms, the first support platform 22 and the second support platform 23, which facilitate the staff to inspect and maintain the straight section and the conical funnel section of the storage bin 3, thereby ensuring the normal operation of the storage bin 3. The first support platform 22 facilitates the staff to control the operation and maintenance of the powder shifting assembly 4.

[0077] In some embodiments, see Figure 1 The top of the storage bin 3 is provided with an explosion-proof opening 37. The explosion-proof opening 37 can prevent the internal pressure of the storage bin 3 from being too high, causing an explosion, and can improve the safety of the storage bin 3.

[0078] Based on the same inventive concept, the present application also provides a coal powder transportation system, including a pulverizing production line, a conveying pipe 1, a support frame 2, a storage bin 3 and a transport vehicle. The pulverizing production line includes a powder feeder 5, the powder feeder 5 is connected to the inlet end of the conveying pipe 1, and the outlet end of the conveying pipe 1 is connected to the top of the storage bin 3; the pulverizing production line is located on a first horizontal plane, the support frame 2 is located on a second horizontal plane, the storage bin 3 is located on the support frame 2, and a discharge port 361 is provided at the bottom of the storage bin 3. The transport vehicle has a coal powder receiving port, the transport vehicle can be moved to the bottom of the support frame 2, and the coal powder receiving port is connected to the discharge port 361, so that the coal powder stored in the storage bin 3 can be transferred to the transport vehicle, which is convenient for transporting the coal powder.

[0079] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal powder conveying system for a coal powder conveyor near a furnace, characterized in that: include: A pulverized coal production line is provided with a pulverized coal conveyor, wherein a discharge opening is provided on the bottom side wall of the pulverized coal conveyor; A support frame is arranged on the side of the pulverized coal production line; A storage bin is disposed on the support frame, and the top of the storage bin is lower than the bottom of the powder conveyor; and The conveying pipe is arranged at an angle with the up-down direction, the upper feed port of the conveying pipe is connected with the outlet opening, the upper feed port is equipped with a blocking valve, and the lower outlet of the conveying pipe is connected with the top of the storage bin.

2. The pulverized coal conveying system for the furnace pulverizer according to claim 1, characterized in that: A safety valve is provided at the discharge end of the conveying pipe.

3. The pulverized coal conveying system for the furnace pulverizer according to claim 2, characterized in that: The storage bin is connected with an inert gas inlet pipe.

4. The pulverized coal conveying system for the furnace pulverizer according to claim 1, characterized in that: A temperature sensor is arranged in the storage bin.

5. The pulverized coal conveying system for the furnace pulverized coal conveyor as claimed in claim 4, characterized in that: The storage bin is connected with a negative pressure pipe, and the negative pressure pipe is used to extract the air in the storage bin.

6. The pulverized coal conveying system for the pulverized coal conveyor near the furnace according to claim 1, characterized in that: A material level monitor is provided in the storage bin, and the material level monitor is used to detect the accumulation height of the coal powder.

7. The pulverized coal conveying system for the furnace pulverized coal conveyor according to claim 1, characterized in that: A conical funnel is arranged at the bottom of the storage bin, a discharge pipe is connected to the bottom of the conical funnel, the discharge port is formed at the bottom of the discharge pipe, and a powder stirring assembly is connected between the discharge pipe and the conical funnel; The powder-digging component comprises: The powder-digging body has a powder-digging channel which runs through from top to bottom, and two ends of the powder-digging channel are respectively connected to the bottom opening of the conical funnel and the inlet of the discharge pipe; an impeller rotatably disposed in the powder-moving channel and capable of moving the coal powder along its own circumference, wherein the rotation axis of the impeller is parallel to the horizontal direction and is rotatably connected to the side wall of the powder-moving channel, and one end of the rotation axis passes through the powder-moving channel; and A driving member is arranged on the powder removing body, and an output shaft of the driving member is connected with a rotating shaft of the impeller through a synchronous chain transmission.

8. The pulverized coal conveying system for the furnace pulverized coal conveyor according to claim 7, characterized in that: One end of the discharge pipe close to the discharge port is connected with a dust collector, and the dust collector is used to absorb coal powder overflowing from the discharge port.

9. The pulverized coal conveying system for the furnace pulverizer according to claim 7, characterized in that: The support frame comprises: Frame; A first supporting platform is provided on the frame, the powder shifting assembly is provided on the first supporting platform, and the discharge port passes downward through the first supporting platform; and The second supporting platform is arranged on the frame and is located above the second supporting platform. The storage bin is arranged on the second supporting platform. The conical funnel is located between the second supporting platform and the first supporting platform.

10. The pulverized coal conveying system for the furnace pulverized coal conveyor according to claim 1, characterized in that: An explosion-proof opening is arranged on the top of the storage bin.

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