Air dust removal device for coal-fired power plant

Abstract

The invention relates to an air dust removal device for a coal-fired power plant, which is applied to the technical field of air dust removal of power plants, and comprises a dust removal master control module and a plurality of detection and regulation dust removal mechanisms, each detection and regulation dust removal mechanism comprises a dust removal assembly, each dust removal assembly comprises a dust removal cylinder and a fan, and each detection and regulation dust removal mechanism further comprises a dust detection assembly arranged in the dust removal cylinder; the dust detection assembly comprises a dust detection pipe matched with the dust suction pipe, the end, communicated with the dust removal cylinder, of the dust suction pipe is flush with the top end of the dust detection pipe, and a dust detection filter screen matched with the dust detection pipe is movably arranged in the dust detection pipe; the multiple detection and adjustment dust removal mechanisms can conduct dust removal on the multiple areas respectively, when the detection and adjustment dust removal mechanisms conduct dust removal, the dust concentration of the corresponding areas can be detected, intelligent adjustment is conducted according to the dust concentration, for the areas with the high dust concentration, the draught fan operates at the high gear, and for the areas with the low dust concentration, the draught fan operates at the low gear. Therefore, the dust removal effect can be guaranteed, and energy waste can be avoided.

Description

Technical Field

[0001] The present invention relates to a dust removal device, in particular to an air dust removal device for a coal-fired power plant applied to the technical field of air dust removal in power plants. Background Art

[0002] A coal-fired power plant, also known as a thermal power plant, mainly uses coal as fuel and converts chemical energy into electrical energy by burning coal. A large amount of dust is generated during the processes of coal transportation, crushing, and pulverizing. These dusts not only pose a threat to the health of workers but may also cause equipment failures. Therefore, air dust removal devices need to be equipped in multiple workshops of coal-fired power plants to ensure environmental safety.

[0003] In the prior art, for example, a Chinese patent with the publication number CN117258431B discloses a dust removal device for a power plant. Through the reasonable configuration of a blowing mechanism, a knocking mechanism, and a closed cooling mechanism, when dust removal is carried out in a dust removal box body, the waste gas is evenly blown towards the cloth bag, and the knocking frame knocks the cloth bag frame, ensuring the filtering effect of the cloth bag. And in case of an accident, the dust removal box body is timely closed and cooled for fire extinguishing, thereby fully protecting the dust removal box body.

[0004] In addition, a Chinese patent with the publication number CN105149312B discloses a dust removal device for a power plant, which can achieve dust removal of the air in a thermal power plant and has a high dust removal efficiency.

[0005] However, the dust removal devices in the prior art often cannot be intelligently adjusted according to the non-uniformity of the dust concentration in the workshop, which results in unsatisfactory dust removal effects in areas with high dust concentrations and may cause energy waste in areas with low dust concentrations. Therefore, we propose an air dust removal device for a coal-fired power plant. Summary of the Invention

[0006] Aiming at the above prior art, the technical problem to be solved by the present invention is that the dust removal devices in the prior art often cannot be intelligently adjusted according to the non-uniformity of the dust concentration in the workshop, which results in unsatisfactory dust removal effects in areas with high dust concentrations and may cause energy waste in areas with low dust concentrations.

[0007] To solve the above problems, the present invention provides an air dust removal device for a coal-fired power plant, which includes a dust removal total control module and a plurality of inspection and adjustment dust removal mechanisms. The inspection and adjustment dust removal mechanism includes a dust removal component, and the dust removal component includes a dust removal cylinder and a fan. A connecting pipe is connected between the dust removal cylinder and the fan. The top of the dust removal cylinder is connected with a dust suction pipe, and one end of the dust suction pipe away from the dust removal cylinder is connected with a dust collection hood. A dust removal filter screen matching the dust removal cylinder is arranged in the dust removal cylinder, and the dust removal filter screen is located above the connecting pipe. The inspection and adjustment dust removal mechanism also includes a dust inspection component arranged in the dust removal cylinder. The dust inspection component includes a dust inspection pipe matching the dust suction pipe. One end of the dust suction pipe connected to the dust removal cylinder is flush with the top end of the dust inspection pipe. A dust inspection filter screen matching the dust inspection pipe is movably arranged in the dust inspection pipe. A measuring cylinder is fixedly installed on the outer wall of the dust inspection pipe. The bottom end of the dust inspection filter screen is fixedly connected with a U-shaped linkage rod. One end of the linkage rod away from the dust inspection filter screen penetrates through the bottom outer wall of the measuring cylinder and extends into the interior of the measuring cylinder, and the linkage rod is slidably connected with the bottom outer wall of the measuring cylinder. A pair of elastic suspension ropes are fixedly connected between the linkage rod and the inner wall of the measuring cylinder. A distance sensor facing the linkage rod is fixedly installed on the inner wall of the top end of the measuring cylinder. The dust inspection component also includes an extension cylinder arranged on the side wall of the dust removal cylinder and communicated with the dust removal cylinder. An electric telescopic rod for driving the dust inspection pipe to move and adjust horizontally is fixedly installed in the extension cylinder;

[0008] The dust inspection component also includes a dust removal and inspection intelligent control system. The dust removal and inspection intelligent control system includes a dust removal and inspection setting module and a control and analysis adjustment module. The dust removal and inspection setting module is signal-connected to the control and analysis adjustment module. The control and analysis adjustment module is signal-connected to the fan, the distance sensor, and the electric telescopic rod. The dust removal total control module is signal-connected to the control and analysis adjustment modules in all inspection and adjustment dust removal mechanisms.

[0009] In the above air dust removal device for a coal-fired power plant, when the inspection and adjustment dust removal mechanism performs dust removal, it will detect the dust concentration and perform intelligent adjustment according to the dust concentration, so as to ensure the dust removal effect and avoid energy waste.

[0010] As a further improvement of the present application, the output end of the electric telescopic rod is fixedly connected with a connecting plate, a dust removal motor is fixedly installed on the connecting plate, and the output end of the dust removal motor is fixedly connected with the dust inspection filter screen. The control and analysis adjustment module is signal-connected to the dust removal motor.

[0011] As a further improvement of the present application, a spring is fixedly installed on the inner wall of the top end of the dust removal cylinder, the bottom end of the spring is fixedly connected with a pipe sealing plate matching the dust inspection pipe, and the bottom end of the pipe sealing plate abuts against the top end of the dust inspection pipe.

[0012] As a further improvement of the present application, the dust suction pipe is composed of a connecting cylinder section connected to the dust removal cylinder, a connecting hood section connected to the dust collection hood, and a soft adjustment section with both ends respectively connected to the connecting cylinder section and the connecting hood section. The soft adjustment section is made of a corrugated hose.

[0013] As a further improvement of the present application, a support plate is fixedly installed on the outer wall of the dust removal cylinder. A angle adjustment motor is fixedly installed on the support plate. The output end of the angle adjustment motor is fixedly connected to the connecting cover section. The dust removal and inspection intelligent control system further includes an angle adjustment control module. The dust removal and inspection setting module is signal-connected to the angle adjustment control module, and the angle adjustment control module is signal-connected to the angle adjustment motor.

[0014] As another improvement of the present application, an electromagnet is arranged below the dust removal filter screen. The linkage rod is made of ferromagnetic material. The electromagnet is located directly below the linkage rod. The dust removal and inspection intelligent control system further includes a dust cleaning inspection and judgment module and a lighting reminder module. The control and analysis adjustment module is signal-connected to the dust cleaning inspection and judgment module, and the dust cleaning inspection and judgment module is signal-connected to the electromagnet, the distance sensor, and the lighting reminder module.

[0015] As a supplement to another improvement of the present application, the bottom end of the dust removal cylinder is set to be open. An inner side of the bottom end of the dust removal cylinder is provided with a bottom sealing plate threadedly and sealingly connected thereto. A connecting rod is fixedly connected between the bottom sealing plate and the dust removal filter screen. One end of the connecting pipe communicating with the dust removal cylinder is flush with the inner wall of the dust removal cylinder.

[0016] As a supplement to another improvement of the present application, the dust removal filter screen is composed of an inner net body and an outer ring body matching with the inner net body. The inner net body is fixedly installed inside the outer ring body. The outer ring body is slidably and sealingly connected to the dust removal cylinder.

[0017] As a supplement to another improvement of the present application, an electric slide rail is fixedly installed at the top end of the bottom sealing plate. The electromagnet is fixedly connected to a slider in the electric slide rail. The dust cleaning inspection and judgment module is also signal-connected to the electric slide rail and the electric telescopic rod.

[0018] In summary, through the setting of the dust inspection component in the present application, multiple dust inspection and adjustment dust removal mechanisms can respectively perform dust removal on multiple areas. When the dust inspection and adjustment dust removal mechanism performs dust removal, it will detect the dust concentration in the corresponding area and perform intelligent adjustment according to the dust concentration. For areas with a high dust concentration, the fan will operate at a high gear. For areas with a low dust concentration, the fan will operate at a low gear, thereby ensuring the dust removal effect and avoiding energy waste. Through the combined setting of the connecting plate, the dust removal motor, etc., after the detection is completed, the dust in the dust inspection pipe can be automatically cleaned, so that the dust inspection component can periodically detect the dust concentration, and further enable the dust inspection and adjustment dust removal mechanism to continuously perform intelligent adjustment according to the change of the dust concentration. Through the combined setting of the electromagnet, the dust cleaning inspection and judgment module, etc., after the dust removal is completed, it can automatically detect and judge whether it is necessary to clean the dust removal filter screen, which can not only clean the dust removal filter screen in time to ensure the subsequent dust removal efficiency and effect, but also avoid unnecessary cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1Schematic three-dimensional structure diagram of the inspection and adjustment dust removal mechanism in the first embodiment of the present application;

[0020] Figure 2 Schematic cross-sectional structure diagram at the dust removal cylinder in the first embodiment of the present application;

[0021] Figure 3 For the present application Figure 2 Enlarged structure diagram at position A;

[0022] Figure 4 Schematic cross-sectional structure diagram at the dust inspection pipe in the first embodiment of the present application;

[0023] Figure 5 Schematic pictorial diagram when the dust inspection pipe in the first embodiment of the present application moves to directly below the dust suction pipe;

[0024] Figure 6 Schematic structure diagram of the dust suction pipe in the first embodiment of the present application;

[0025] Figure 7 Structural block diagram of the inspection and intelligence control system in the first embodiment of the present application;

[0026] Figure 8 Schematic cross-sectional structure diagram at the dust removal cylinder in the second embodiment of the present application;

[0027] Figure 9 Structural block diagram of the inspection and intelligence control system in the second embodiment of the present application.

[0028] Description of the reference numerals in the figure:

[0029] 101. Dust removal cylinder; 102. Fan; 103. Connecting pipe; 104. Dust suction pipe; 041. Connecting cylinder section; 042. Soft adjustment section; 043. Connecting cover section; 105. Dust collection cover; 106. Dust removal filter screen; 061. Inner net body; 062. Outer ring body; 201. Dust inspection pipe; 202. Dust inspection filter screen; 203. Measuring cylinder; 204. Linking rod; 205. Elastic suspension cord; 206. Distance sensor; 207. Extension cylinder; 208. Electric telescopic rod; 209. Connecting plate; 210. Dust removal motor; 211. Spring; 212. Pipe sealing plate; 213. Support plate; 214. Angle adjustment motor; 301. Electromagnet; 302. Bottom sealing plate; 303. Electric slide rail; 304. Connecting rod. Specific embodiments

[0030] The following provides a detailed description of the two embodiments of the present application with reference to the accompanying drawings.

[0031] The first embodiment:

[0032] Figures 1 - 7There is shown an air dust removal device for a coal-fired power plant, which includes a dust removal total control module and a plurality of inspection and adjustment dust removal mechanisms. The inspection and adjustment dust removal mechanism includes a dust removal component. The dust removal component includes a dust removal cylinder 101 and a fan 102. A connecting pipe 103 is connected between the dust removal cylinder 101 and the fan 102. The top end of the dust removal cylinder 101 is connected to a dust suction pipe 104. One end of the dust suction pipe 104 away from the dust removal cylinder 101 is connected to a dust collection hood 105. A dust removal filter screen 106 matching the dust removal cylinder 101 is arranged in the dust removal cylinder 101. The dust removal filter screen 106 is located above the connecting pipe 103. The inspection and adjustment dust removal mechanism further includes a dust inspection component arranged in the dust removal cylinder 101. The dust inspection component includes a dust inspection pipe 201 matching the dust suction pipe 104. One end of the dust suction pipe 104 connected to the dust removal cylinder 101 is flush with the top end of the dust inspection pipe 201. A dust inspection filter screen 202 matching the dust inspection pipe 201 is movably arranged in the dust inspection pipe 201. A measuring cylinder 203 is fixedly installed on the outer wall of the dust inspection pipe 201. The bottom end of the dust inspection filter screen 202 is fixedly connected to a linkage rod 204 set in a U shape. One end of the linkage rod 204 away from the dust inspection filter screen 202 penetrates through the bottom outer wall of the measuring cylinder 203 and extends into the interior of the measuring cylinder 203, and the linkage rod 204 is slidably connected to the bottom outer wall of the measuring cylinder 203. A pair of elastic suspension ropes 205 are fixedly connected between the linkage rod 204 and the inner wall of the measuring cylinder 203. A distance sensor 206 facing the linkage rod 204 is fixedly installed on the inner wall of the top end of the measuring cylinder 203. The dust inspection component further includes an extension cylinder 207 arranged on the side wall of the dust removal cylinder 101 and communicated with the dust removal cylinder 101. An electric telescopic rod 208 for driving the dust inspection pipe 201 to move horizontally for adjustment is fixedly installed in the extension cylinder 207;

[0033] The dust inspection component further includes a dust removal and inspection intelligent control system. The dust removal and inspection intelligent control system includes a dust removal and inspection setting module and a control and analysis adjustment module. The dust removal and inspection setting module is signal-connected to the control and analysis adjustment module. The control and analysis adjustment module is signal-connected to the fan 102, the distance sensor 206, and the electric telescopic rod 208. The dust removal total control module is signal-connected to the control and analysis adjustment modules in all the inspection and adjustment dust removal mechanisms.

[0034] When arranging the dust removal device, the workshop is reasonably divided into multiple areas according to the situation, and an inspection and adjustment dust removal mechanism is installed in each area. When installing the inspection and adjustment dust removal mechanism, a suitable installation method can be selected according to the situation. Preferably, the inspection and adjustment dust removal mechanism is installed on the ceiling of the workshop. When starting dust removal, a start command is sent to the control and analysis adjustment module through the dust removal total control module, and multiple inspection and adjustment dust removal mechanisms can be started simultaneously to remove dust from the corresponding areas. The fan 102 has two gears, high and low. After receiving the start command, the control and analysis adjustment module will start the fan 102 to operate at a high gear. After the fan 102 is started, the air containing dust in the workshop can be sucked into the dust removal cylinder 101 through the dust collection hood 105 and the dust suction pipe 104. The dust removal filter screen 106 can filter the dust in the air, so as to achieve the purpose of dust removal. The filtered air is discharged from the exhaust end of the fan 102;

[0035] After each control and analysis adjustment module receives the start instruction and starts the fan 102, it will also perform a detection operation. During the detection, the control and analysis adjustment module will control the electric telescopic rod 208 to push the dust detection tube 201 until the dust detection tube 201 moves directly below the dust suction tube 104, causing the dust detection tube 201 to communicate with the dust suction tube 104. Then, the control and analysis adjustment module will start the distance sensor 206 and start timing. In the detection setting module, a duration parameter and a high-grade distance threshold are preset. After the dust detection tube 201 moves directly below the dust suction tube 104, the air containing dust sucked in will pass through the dust detection tube 201, and the dust detection filter screen 202 will filter the dust in the air. Under the action of the air flow, the dust detection filter screen 202 and the linkage rod 204 will move downward by a certain distance. The distance sensor 206 is used to monitor the distance between it and the linkage rod 204. After the timing duration reaches the duration parameter, the control and analysis adjustment module will read the distance data monitored by the distance sensor 206 at this time. For the convenience of description, let this distance data be A. The control and analysis adjustment module will compare A with the high-grade distance threshold;

[0036] The higher the dust concentration, the more dust filtered out by the dust detection filter screen 202. The more dust on the dust detection filter screen 202, the greater the downward movement distance of the dust detection filter screen 202, and the greater the distance between the distance sensor 206 and the linkage rod 204. Correspondingly, the value of A is also greater. Therefore, the dust concentration can be indirectly judged through A. If A is not lower than the high-grade distance threshold, it indicates that the dust concentration is relatively high, and the fan 102 will continue to operate at a high gear. On the contrary, if A is lower than the high-grade distance threshold, it indicates that the dust concentration is relatively low. At this time, the control and analysis adjustment module will control the fan 102 to shift gears, causing the fan 102 to operate at a low gear. In addition, after the detection is completed, the control and analysis adjustment module will turn off the distance sensor 206 and control the electric telescopic rod 208 to pull the dust detection tube 201 back to its original position;

[0037] Therefore, through the setting of the dust detection component, multiple control and adjustment dust removal mechanisms can respectively perform dust removal on multiple areas. When the control and adjustment dust removal mechanism performs dust removal, it will detect the dust concentration in the corresponding area and perform intelligent adjustment according to the dust concentration. For areas with a high dust concentration, the fan 102 will operate at a high gear. For areas with a low dust concentration, the fan 102 will operate at a low gear. Thus, both the dust removal effect can be guaranteed and energy waste can be avoided.

[0038] The output end of the electric telescopic rod 208 is fixedly connected with a connecting plate 209. A dust removal motor 210 is fixedly installed on the connecting plate 209. The output end of the dust removal motor 210 is fixedly connected with the dust detection filter screen 202. The control and analysis adjustment module is signal-connected to the dust removal motor 210. After each detection is completed and the dust detection pipe 201 is reset, the control and analysis adjustment module will control the dust removal motor 210 to drive the dust detection pipe 201 to rotate half a turn, so that the dust filtered out by the dust detection filter screen 202 during the detection can be poured out. And in order to pour out the dust more thoroughly, the control and analysis adjustment module will also control the dust removal motor 210 to drive the dust detection pipe 201 to swing back and forth several times. After the dust is poured out, the control and analysis adjustment module will control the dust removal motor 210 to drive the dust detection pipe 201 to rotate back to its original position;

[0039] In addition, the detection period and the low gear distance threshold are also preset in the detection setting module. During the operation of the dust removal device, the control and analysis adjustment module will perform the detection operation regularly according to the detection period. If the fan 102 is in the low gear when the detection operation is performed, then after the timing duration reaches the duration parameter and the control and analysis adjustment module reads the distance data monitored by the distance sensor 206 at this time, the control and analysis adjustment module will compare this distance data with the low gear distance threshold, rather than with the high gear distance threshold. And if the distance data is not less than the low gear distance threshold, the control and analysis adjustment module will control the fan 102 to adjust the gear to the high gear;

[0040] Therefore, through the combined setting of the connecting plate 209, the dust removal motor 210, etc., after the detection is completed, the dust in the dust detection pipe 201 can be automatically cleaned, so that the dust detection component can periodically detect the dust concentration, and further enable the detection and adjustment dust removal mechanism to continuously perform intelligent adjustment according to the change of the dust concentration.

[0041] A spring 211 is fixedly installed on the inner wall of the top end of the dust removal cylinder 101. The bottom end of the spring 211 is fixedly connected with a pipe sealing plate 212 that matches the dust detection pipe 201. The bottom end of the pipe sealing plate 212 abuts against the top end of the dust detection pipe 201. The pipe sealing plate 212 can play a sealing role in the top end of the dust detection pipe 201, so that after the dust in the dust detection pipe 201 is automatically cleaned, the dust cannot enter the dust detection pipe 201 from the top end of the dust detection pipe 201, thus ensuring the accuracy of subsequent detection. In addition, since a spring 211 is provided at the top end of the pipe sealing plate 212, the dust removal motor 210 can smoothly drive the dust detection pipe 201 to rotate.

[0042] The dust suction pipe 104 is composed of a connecting pipe section 041 communicating with the dust removal cylinder 101, a connecting hood section 043 connected to the dust collection hood 105, and a flexible adjustment section 042 with both ends communicating with the connecting pipe section 041 and the connecting hood section 043 respectively. The flexible adjustment section 042 is made of a corrugated hose. A support plate 213 is fixedly installed on the outer wall of the dust removal cylinder 101, and an angle adjustment motor 214 is fixedly installed on the support plate 213. The output end of the angle adjustment motor 214 is fixedly connected to the connecting hood section 043. The dust removal and inspection intelligent control system further includes an angle adjustment control module. The dust removal and inspection setting module is signal-connected to the angle adjustment control module, and the angle adjustment control module is signal-connected to the angle adjustment motor 214. By setting the adjustment angle through the dust removal and inspection setting module, the angle adjustment control module will control the angle adjustment motor 214 to drive the connecting hood section 043 to rotate and adjust according to the set adjustment angle, so that the dust suction angle can be adjusted.

[0043] The second implementation mode:

[0044] Please refer to Figures 8 - 9 , different from the first implementation mode, an electromagnet 301 is further provided below the dust removal filter screen 106. The linkage rod 204 is made of a ferromagnetic material. The electromagnet 301 is located directly below the linkage rod 204. A dust cleaning inspection and judgment module and a lighting reminder module are also provided in the dust removal and inspection intelligent control system. The control and analysis adjustment module is signal-connected to the dust cleaning inspection and judgment module, and the dust cleaning inspection and judgment module is signal-connected to the electromagnet 301, the distance sensor 206, and the lighting reminder module. A dust cleaning distance threshold is also preset in the dust removal and inspection setting module. When the dust removal is completed, the dust removal total control module can issue a shutdown command to the control and analysis adjustment module. After receiving the shutdown command, the control and analysis adjustment module will turn off the fan 102 to end the dust removal. At the same time, the control and analysis adjustment module will also send a signal to the dust cleaning inspection and judgment module. After receiving the signal, the dust cleaning inspection and judgment module will perform the operation of detecting the amount of dust accumulated on the dust removal filter screen 106. During the detection, the dust cleaning inspection and judgment module will first start the distance sensor 206, and then control the electromagnet 301 to be energized. After the electromagnet 301 is energized, it will apply a magnetic suction force to the linkage rod 204, causing the linkage rod 204 to move downward. Subsequently, the dust cleaning inspection and judgment module will read the distance data monitored by the distance sensor 206 at this time. For the convenience of description, let this distance data be B. The dust cleaning inspection and judgment module will compare B with the dust cleaning distance threshold;

[0045] The dust filtered out on the dust removal filter screen 106 will affect the magnetic attraction between the electromagnet 301 and the linkage rod 204. The more and thicker the dust is, the smaller the magnetic attraction between the electromagnet 301 and the linkage rod 204 will be, and the smaller the downward movement distance of the linkage rod 204 will be. Correspondingly, the value of B will be smaller. Thus, the amount of dust accumulated on the dust removal filter screen 106 can be indirectly judged through B, and then it can be judged whether it is necessary to clean the dust removal filter screen 106. If B is not less than the dust cleaning distance threshold, it means that the amount of dust is still small and no cleaning is required. On the contrary, if B is less than the dust cleaning threshold, it means that there is more dust and cleaning is required. At this time, the dust cleaning detection and judgment module will control the lighting reminder module to remind relevant technicians by lighting. After the detection is completed, the dust cleaning detection and judgment module will automatically turn off the distance sensor 206 and control the electromagnet 301 to cut off the power supply;

[0046] Therefore, through the combined setting of the electromagnet 301, the dust cleaning detection and judgment module, etc., after the dust removal is completed, it can automatically detect and judge whether it is necessary to clean the dust removal filter screen 106, which can not only enable the dust removal filter screen 106 to be cleaned in time, ensure the subsequent dust removal efficiency and effect, but also avoid unnecessary cleaning.

[0047] The bottom end of the dust removal cylinder 101 is set to be open. The inner side of the bottom end of the dust removal cylinder 101 is provided with a bottom sealing plate 302 that is threadedly and hermetically connected thereto. A connecting rod 304 is fixedly connected between the bottom sealing plate 302 and the dust removal filter screen 106. One end of the connecting pipe 103 communicating with the dust removal cylinder 101 is flush with the inner wall of the dust removal cylinder 101. The dust removal filter screen 106 is composed of an inner mesh body 061 and an outer ring body 062 that matches the inner mesh body 061. The inner mesh body 061 is fixedly installed inside the outer ring body 062. The outer ring body 062 is slidably and hermetically connected to the dust removal cylinder 101, so that by removing the bottom sealing plate 302, the dust removal filter screen 106 can be pulled out, and then the dust removal filter screen 106 can be cleaned, thereby making the dust removal filter screen 106 easy to clean.

[0048] An electric slide rail 303 is fixedly installed at the top of the bottom sealing plate 302. The electromagnet 301 is fixedly connected to the slider in the electric slide rail 303. The dust cleaning and detection judgment module is also signal-connected to the electric slide rail 303 and the electric telescopic rod 208. The dust removal setting module is also preset with a moving distance parameter and a number parameter. When detecting the amount of dust accumulated on the dust removal filter screen 106, multiple detections will be carried out. After detecting at the initial position and reading the distance data, the dust cleaning and detection judgment module will control the electric slide rail 303 to drive the electromagnet 301 to move and adjust according to the moving distance parameter, and control the electric telescopic rod 208 to drive the linkage rod 204 to move and adjust. Then, the detection is carried out again and the distance data is read again, and so on until the detection times reach the number parameter. Then, the dust cleaning and detection judgment module will calculate the average value of the multiple distance data obtained from multiple detections, and then use this average value as the final distance data (the calculation of the final distance data can also adopt other appropriate algorithms) and compare it with the dust cleaning distance threshold, which improves the accuracy of detection.

[0049] Combined with the current actual requirements, the above implementation manner adopted by this application, the protection scope is not limited to this. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An air dust removal device for a coal-fired power plant, comprising a total dust removal control module and a plurality of inspection and adjustment dust removal mechanisms. The inspection and adjustment dust removal mechanism includes a dust removal component. The dust removal component includes a dust removal cylinder (101) and a fan (102). A connecting pipe (103) is connected between the dust removal cylinder (101) and the fan (102). The top end of the dust removal cylinder (101) is connected to a dust suction pipe (104). One end of the dust suction pipe (104) away from the dust removal cylinder (101) is connected to a dust collection hood (105). A dust removal filter screen (106) matching the dust removal cylinder (101) is arranged in the dust removal cylinder (101). The dust removal filter screen (106) is located above the connecting pipe (103), and it is characterized in that, The inspection and adjustment dust removal mechanism further includes a dust inspection component disposed inside the dust removal cylinder (101). The dust inspection component includes a dust inspection pipe (201) that matches the dust suction pipe (104). One end of the dust suction pipe (104) communicating with the dust removal cylinder (101) is flush with the top end of the dust inspection pipe (201). A dust inspection filter screen (202) that matches it is movably arranged inside the dust inspection pipe (201). A measuring cylinder (203) is fixedly installed on the outer wall of the dust inspection pipe (201). The bottom end of the dust inspection filter screen (202) is fixedly connected to a linkage rod (204) arranged in a U shape. One end of the linkage rod (204) away from the dust inspection filter screen (202) penetrates through the bottom outer wall of the measuring cylinder (203) and extends into the interior of the measuring cylinder (203), and the linkage rod (204) is slidably connected to the bottom outer wall of the measuring cylinder (203). A pair of elastic suspension ropes (205) are fixedly connected between the linkage rod (204) and the inner wall of the measuring cylinder (203). A distance sensor (206) facing the linkage rod (204) is fixedly installed on the top inner wall of the measuring cylinder (203). The dust inspection component further includes an extension cylinder (207) arranged on the side wall of the dust removal cylinder (101) and communicating with the dust removal cylinder (101). An electric telescopic rod (208) for driving the dust inspection pipe (201) to move and adjust horizontally is fixedly installed inside the extension cylinder (207); The dust inspection component further includes a dust removal intelligent control system. The dust removal intelligent control system includes a dust removal setting module and a control and analysis adjustment module. The dust removal setting module is signal-connected to the control and analysis adjustment module. The control and analysis adjustment module is signal-connected to the fan (102), the distance sensor (206), and the electric telescopic rod (208). The dust removal total control module is signal-connected to the control and analysis adjustment modules in all inspection and adjustment dust removal mechanisms.

2. The air dust removal device for a coal-fired power plant according to claim 1, wherein The output end of the electric telescopic rod (208) is fixedly connected to a connecting plate (209). A dust removal motor (210) is fixedly installed on the connecting plate (209). The output end of the dust removal motor (210) is fixedly connected to the dust inspection filter screen (202). The control and analysis adjustment module is signal-connected to the dust removal motor (210).

3. An air dust removal device for a coal-fired power plant according to claim 1, characterized in that, A spring (211) is fixedly installed on the top inner wall of the dust removal cylinder (101). The bottom end of the spring (211) is fixedly connected to a pipe sealing plate (212) that matches the dust inspection pipe (201). The bottom end of the pipe sealing plate (212) abuts against the top end of the dust inspection pipe (201).

4. An air dust removal device for a coal-fired power plant according to claim 1, characterized in that, The dust suction pipe (104) is composed of a connecting cylinder section (041) communicating with the dust removal cylinder (101), a connecting cover section (043) connected to the dust collection cover (105), and a soft adjustment section (042) with both ends communicating with the connecting cylinder section (041) and the connecting cover section (043) respectively. The soft adjustment section (042) is made of a corrugated hose.

5. An air dust removal device for a coal-fired power plant according to claim 4, characterized in that, A support plate (213) is fixedly installed on the outer wall of the dust removal cylinder (101). A angle adjustment motor (214) is fixedly installed on the support plate (213). The output end of the angle adjustment motor (214) is fixedly connected to the connecting cover section (043). The dust removal and inspection intelligent control system further includes an angle adjustment control module. The dust removal and inspection setting module is in signal connection with the angle adjustment control module. The angle adjustment control module is in signal connection with the angle adjustment motor (214).

6. The air dust removal device for a coal-fired power plant according to claim 1, wherein, An electromagnet (301) is arranged below the dust removal filter screen (106). The linkage rod (204) is made of ferromagnetic material. The electromagnet (301) is located directly below the linkage rod (204). A dust cleaning inspection and judgment module and a lighting reminder module are also arranged in the dust removal and inspection intelligent control system. The control and analysis adjustment module is in signal connection with the dust cleaning inspection and judgment module. The dust cleaning inspection and judgment module is in signal connection with the electromagnet (301), the distance sensor (206), and the lighting reminder module.

7. An air dust removal device for a coal-fired power plant according to claim 6, characterized in that, The bottom end of the dust removal cylinder (101) is arranged in an open shape. A bottom sealing plate (302) which is in threaded sealing connection with the inner side of the bottom end of the dust removal cylinder (101) is arranged inside the bottom end of the dust removal cylinder (101). A connecting rod (304) is fixedly connected between the bottom sealing plate (302) and the dust removal filter screen (106). One end of the connecting pipe (103) communicating with the dust removal cylinder (101) is flush with the inner wall of the dust removal cylinder (101).

8. An air dust removal device for a coal-fired power plant according to claim 7, characterized in that, The dust removal filter screen (106) is composed of an inner mesh body (061) and an outer ring body (062) matching with the inner mesh body (061). The inner mesh body (061) is fixedly installed inside the outer ring body (062). The outer ring body (062) is in sliding sealing connection with the dust removal cylinder (101).

9. The air dust removal device for a coal-fired power plant according to claim 8, characterized in that, An electric slide rail (303) is fixedly installed at the top end of the bottom sealing plate (302). The electromagnet (301) is fixedly connected to the slider in the electric slide rail (303). The dust cleaning inspection and judgment module is also in signal connection with the electric slide rail (303) and the electric telescopic rod (208).

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