Automatic boiler ash treatment system and method

Abstract

The invention provides an automatic boiler ash treatment system and method, and relates to the technical field of boiler ash treatment, the automatic boiler ash treatment system comprises a heat exchange mechanism, a fly ash discharge outlet in the top of a boiler communicates with the heat exchange mechanism arranged on one side of the boiler, and a first-stage dust collector and a bag type dust collector are sequentially arranged on one side of the heat exchange mechanism; the heat exchange mechanism, the primary dust collector and the bag type dust collector are communicated through a pipeline, the transfer box is communicated with a discharge port of the primary dust collector and a discharge port of the bag type dust collector, the transfer box is communicated with a feed port of the disposal bin through a conveying pipeline, and the impurity removal mechanism is communicated with a slag outlet in the bottom of the boiler through a conveying belt. Through the heat exchange mechanism, the first-stage dust collector and the bag type dust collector which are arranged on one side of the boiler, fly ash in boiler ash is collected into the disposal bin after being treated, the heat exchange mechanism recovers waste heat of the fly ash discharged by the boiler, and then the impurity removal mechanism can remove harmful substances such as metal contained in the furnace slag, so that waste heat of the boiler ash is recycled, and the environment is protected. The boiler ash treatment efficiency and the energy utilization rate are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler ash treatment, and in particular to an automatic boiler ash treatment system and method. Background Art

[0002] Boiler ash refers to the final product formed by the physical and chemical changes of minerals in coal during the combustion process in the furnace after being subjected to high temperature. The presence of these ash in the boiler will cause a series of problems, such as furnace contamination, slagging, corrosion and wear of the heating surface, which seriously affect the normal operation of the boiler.

[0003] The existing boiler ash treatment system has serious heat loss during the ash treatment process. It lacks a heat exchange mechanism and cannot reuse the waste heat of fly ash, resulting in energy waste. Secondly, it lacks a cleaning mechanism and cannot effectively remove the metal substances contained in the slag, thus causing slag emissions to pollute the environment. Therefore, it is urgent to design an automated boiler ash treatment system and method to solve the above problems. Summary of the invention

[0004] The present invention provides an automated boiler ash treatment system and method, which are used to solve at least one of the problems raised by the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses an automated boiler ash treatment system, including a heat exchange mechanism, a fly ash discharge port on the top of the boiler is connected to the heat exchange mechanism arranged on one side of the boiler, a primary dust collector and a bag dust collector are arranged on one side of the heat exchange mechanism in sequence, and the heat exchange mechanism, the primary dust collector and the bag dust collector are connected through a pipeline, a transfer box is connected with the discharge port of the primary dust collector and the bag dust collector, the transfer box is connected with the feed port of the disposal bin through a feed pipeline, and the impurity removal mechanism is connected with the slag discharge port at the bottom of the boiler through a conveyor belt.

[0006] Preferably, the heat exchange mechanism includes: a box body, which is fixedly connected to the top of the support frame, the middle part of the heat exchange tube is connected to the connecting tube, and the bottom of the heat exchange tube is rotatably connected to a connecting head, the connecting head is fixedly connected to the inner wall of the box body through a fixing rod, the water inlet pipe passes through the side wall of the box body and is connected to the connecting head, the shell is fixedly connected to the top of the box body, the water outlet pipe rotates through the shell and the top of the box body in turn and is rotatably connected to the water outlet of the connecting tube, and the water outlet pipe is driven by a driving device.

[0007] Preferably, the support seat is fixedly connected to one side of the support frame, the fan is fixedly connected to the support seat, and the fan is connected to a pipe connecting the heat exchange mechanism and the primary dust collector.

[0008] Preferably, the impurity removal mechanism is connected with the slag outlet at the bottom of the boiler through a conveyor belt, and the impurity removal mechanism includes: a disposal box, a feed port at the top of the disposal box is connected with the discharge port of the disposal bin through a pipeline, a magnetic conveyor belt is arranged on the inner wall of the disposal box, and the magnetic conveyor belt is driven by a first driving device, two mounting plates are fixedly connected to the top of the disposal box at a distance, a guide rod is fixedly connected to the inner walls of the two mounting plates, a threaded rod one is rotatably connected to the mounting plate, and one end of the threaded rod one is fixedly connected to the output shaft of the driving motor one, a sliding sleeve is threadedly connected to the threaded rod one, and the top of the sliding sleeve is slidably connected to the guide rod, a fixed bracket is fixedly connected to the bottom of the sliding sleeve, and the two ends of the bottom of the fixed bracket are respectively fixedly connected with a material stripping plate and a rake tooth; A material guide plate is hinged on the left inner wall of the disposal box, a fixed end of the electric telescopic rod is hinged on the inner wall of the disposal box, and a telescopic end of the electric telescopic rod is hinged to the material guide plate, the support rod is fixedly connected to the right inner wall of the disposal box, the material guide roller is hinged to the support rod through a mounting bracket, and both ends of a spring are respectively connected to the support rod and the mounting bracket.

[0009] Preferably, it also includes a recycling component, which is arranged at the bottom of the disposal box, and the recycling component includes: a material baffle plate, which is fixedly connected to the bottom of the disposal box, a scraper plate fixedly connected to the inner wall of the disposal box, a mounting seat fixedly connected to the bottom of the disposal box, and a guide rail is provided at the bottom of the mounting seat, two threaded rods with opposite rotation directions are rotatably connected to the mounting seat, the output shaft of the second driving motor is fixedly connected to the second threaded rod, a trapezoidal block is fixedly connected to the bottom of the mounting seat, two mounting sleeves are symmetrically threaded on the second threaded rod, and the bottom of the mounting sleeve is slidably connected to the guide rail, a second spring is fixedly connected in the mounting sleeve, the bottom of the collecting trough slides through the top of the mounting sleeve and is connected to the second spring, two wedge blocks are fixedly connected to the bottom of the collecting trough, and the inclined surface at the bottom of the wedge block is slidably connected to the inclined surface at the top of the trapezoidal block.

[0010] Preferably, an automated boiler ash treatment method is applied to the automated boiler ash treatment system according to any one of claims 1 to 5, characterized in that the method comprises the following steps: Step S1: collecting and separately treating the ash generated during the boiler combustion process so that the boiler ash is discharged from the fly ash discharge port and the slag discharge port of the boiler; Step S2: The fly ash discharged from the boiler in step S1 is transported by a pneumatic conveying system, and is sequentially processed by a heat exchange mechanism, a primary dust collector, and a bag filter, so that the fly ash is collected in a disposal bin for final disposal; Step S3: performing heat exchange treatment on the fly ash transported to the heat exchange mechanism in step S2 to recycle a large amount of waste heat in the fly ash and improve energy utilization; Step S4: The slag discharged from the slag outlet in step S1 is transported to the impurity removal mechanism to remove and collect harmful substances such as heavy metals contained in the slag, so that the slag can be discharged safely.

[0011] Preferably, it also includes ash conveying detection equipment, which is used for detecting the conveying state of the fly ash discharged from the boiler by the automated boiler ash treatment system during the treatment process. The ash conveying detection equipment includes: Densitometer, used to detect the density of fly ash transported inside the pipeline connecting the boiler fly ash discharge port and the heat exchange mechanism; A flow rate sensor is used to detect the flow rate of fly ash transported inside the pipeline connecting the boiler fly ash discharge port and the heat exchange mechanism; Rotational viscometer, used to detect the dynamic viscosity of fly ash transported inside the pipeline connecting the boiler fly ash discharge port and the heat exchange mechanism; A controller and an alarm, wherein the controller is electrically connected to the density meter, the flow rate sensor, the rotational viscometer, and the alarm, and the controller controls the alarm to work based on the density meter, the flow rate sensor, and the rotational viscometer.

[0012] Preferably, the controller controls the alarm to work based on the density meter, flow rate sensor and rotational viscometer, including: Calculate the convective heat transfer coefficient of fly ash transport during the boiler ash handling system's treatment of fly ash discharged from the boiler based on the formula and the test values ​​obtained from the density meter, flow rate sensor and rotational viscometer The controller compares the convective heat transfer coefficient of fly ash transport during the treatment of fly ash discharged from the boiler by the current boiler ash handling system. Compared with the preset convective heat transfer coefficient range of fly ash transportation, if the current boiler ash treatment system processes the fly ash discharged from the boiler, the convective heat transfer coefficient of fly ash transportation When the convective heat transfer coefficient of fly ash transportation is not within the preset range, the controller controls the alarm to sound an alarm: ; in, The convective heat transfer coefficient of fly ash transport during the ash handling system's treatment of fly ash discharged from the boiler. is the Reynolds number of fly ash transported in pipelines, , It is the density value detected by the density meter on the fly ash density transported by the pipeline connecting the boiler fly ash discharge port and the heat exchange mechanism. It is the detection value of the fly ash flow rate transported by the flow rate sensor in the pipeline connecting the boiler fly ash discharge port and the heat exchange mechanism. It is the test value of the dynamic viscosity of fly ash transported by the pipeline connecting the boiler fly ash discharge port and the heat exchange mechanism using a rotational viscometer. is the diameter of the pipe connecting the boiler fly ash discharge port and the heat exchange mechanism, is the Prandtl number of fly ash flow at room temperature, is the temperature difference correction coefficient, It is the actual length of the pipe connecting the boiler fly ash discharge port and the heat exchange mechanism.

[0013] The present invention provides an automated boiler ash treatment system and method. Compared with the prior art, the present invention has the following beneficial effects: 1. Through the heat exchange mechanism, the fly ash discharged from the boiler can be recycled and reused during the automated boiler ash treatment process, thereby improving the energy utilization rate. The heat exchange mechanism can cooperate with the primary dust collector and bag dust collector to complete the subsequent treatment of the ash, ensuring that the fly ash emission of the boiler slag treatment system is more environmentally friendly.

[0014] 2. The slag discharged from the boiler is collected by the impurity removal mechanism and then removed, so that the metal substances contained in the slag can be effectively removed, avoiding the waste of resources and reducing the pollution of the ash to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of an automated boiler ash treatment system provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a heat exchange mechanism of an automated boiler ash treatment system provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a de-impurity mechanism of an automated boiler ash treatment system provided by an embodiment of the present invention; Figure 4 A flow chart of a method for an automated boiler ash treatment system provided in an embodiment of the present invention.

[0017] Reference numerals: 1. Boiler; 2. Heat exchange mechanism; 3. Primary dust collector; 4. Bag dust collector; 5. Transfer box; 6. Feed pipeline; 7. Disposal bin; 8. De-impurity mechanism; 9. Conveyor belt; 10. Box; 11. Support frame; 12. Heat exchange tube; 13. Connecting pipe; 14. Connector; 15. Fixing rod; 16. Water inlet pipe; 17. Shell; 18. Water outlet pipe; 19. Pulley 1; 20. Drive motor; 21. Pulley 2; 22. Belt 1; 23. Support seat; 24. Fan; 25. Disposal box; 26. Magnetic conveyor belt; 27. Installation Mounting plate; 28. Guide rod; 29. ​​Threaded rod one; 30. Drive motor one; 31. Sliding sleeve; 32. Fixed bracket; 33. Material shifting plate; 34. Rake teeth; 35. Material guide plate; 36. Electric telescopic rod one; 37. Support rod; 38. Material guide roller; 39. Mounting bracket; 40. Spring one; 41. Recovery component; 42. Material baffle plate; 43. Scraper plate; 44. Mounting seat; 45. Guide rail; 46. Threaded rod two; 47. Drive motor two; 48. Trapezoidal block; 49. Mounting sleeve; 50. Collecting trough; 51. Spring two; 52. Wedge block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention provides the following embodiments Example 1 The embodiment of the present invention provides an automated boiler ash treatment system, such as Figure 1-Figure 2 As shown, it includes a heat exchange mechanism 2, a fly ash discharge port on the top of the boiler 1 is connected to the heat exchange mechanism 2 arranged on one side of the boiler 1, a primary dust collector 3 and a bag dust collector 4 are arranged on one side of the heat exchange mechanism 2 in sequence, and the heat exchange mechanism 2, the primary dust collector 3 and the bag dust collector 4 are connected through a pipeline, a transfer box 5 is connected with the discharge port of the primary dust collector 3 and the bag dust collector 4, the transfer box 5 is connected with the feed port of the disposal bin 7 through a conveying pipeline 6, and the impurity removal mechanism 8 is connected with the slag discharge port at the bottom of the boiler 1 through a conveying belt 9.

[0020] Preferably, the heat exchange mechanism 2 includes: a box body 10, the box body 10 is fixedly connected to the top of the support frame 11, the middle part of the heat exchange tube 12 is connected to the connecting tube 13, and the bottom of the heat exchange tube 12 is rotatably connected to a connecting head 14, the connecting head 14 is fixedly connected to the inner wall of the box body 10 through a fixing rod 15, a water inlet pipe 16 passes through the side wall of the box body 10 and is connected to the connecting head 14, a shell 17 is fixedly connected to the top of the box body 10, a water outlet pipe 18 rotates through the shell 17 and the top of the box body 10 in turn and is rotatably connected to the water outlet of the connecting tube 13, and the water outlet pipe 18 is driven by a driving device.

[0021] Preferably, the support seat 23 is fixedly connected to one side of the support frame 11 , the fan 24 is fixedly connected to the support seat 23 , and the fan 24 is connected to a pipe connecting the heat exchange mechanism 2 and the primary dust collector 3 .

[0022] The working principle and beneficial effects of the above technical solution are: The above-mentioned automated boiler ash treatment system is mainly composed of a heat exchange mechanism 2, a primary dust collector 3, a bag dust collector 4 and a disposal bin 7. During the operation of the boiler 1, the ash generated by the combustion of fuel is collected and divided into fly ash and slag, wherein the fly ash is discharged from the fly ash discharge port at the top of the boiler 1, so that the fly ash is transported to the heat exchange mechanism 2 through the pipeline, and the fly ash is transported through the box 10 through the operation of the heat exchange mechanism 2 to realize the recovery of waste heat. First, the water inlet pipe 16 transports low-temperature water to the heat exchange tube 12 through the connector 14, so that the low-temperature water completes the heat exchange with the flue gas in the box 10 from top to bottom through the inside of the heat exchange tube 12, and the connecting pipe 13 is connected to the heat exchange tube 12, so that the water after the heat exchange is completed is transported to the water outlet pipe 18 through the water outlet at the top of the connecting pipe 13, and at the same time The driving motor 20 fixedly connected to the top of the box body 10 drives the fixedly connected pulley 21 to rotate. The rotation of the pulley 21 drives the pulley 19 fixedly connected to the water outlet pipe 18 to rotate synchronously through the belt 2, so that the connecting pipe 13 fixedly connected to the water outlet pipe 18 rotates synchronously, so that the heat exchange tube can rotate, thereby greatly improving the heat exchange efficiency between the heat exchange tube and the fly ash. The fly ash after heat exchange enters the pipeline through the discharge port at the bottom of the box body 10, and the fan 24 connected to the heat exchange mechanism 2 and the primary dust collector 3 transports the fly ash and flue gas to the primary dust collector 3 and the bag dust collector 4, thereby completing the treatment of the fly ash.

[0023] The flue gas after the dust removal operation of the primary dust collector 3 and the bag dust collector 4 is discharged from the chimney through processes such as desulfurization, and the fly ash generated by the primary dust collector 3 and the bag dust collector 4 will be discharged from the discharge port at the bottom into the transfer box 5. The feed pipe 6 connected to the transfer box 5 transports the fly ash to the disposal bin 7 under the action of the Roots blower 24. The above-mentioned automatic boiler ash treatment system can complete the waste heat recovery and reuse of the fly ash discharged from the boiler 1 during the automatic boiler 1 ash treatment process through the heat exchange mechanism 2, thereby improving the energy utilization rate, and the heat exchange mechanism 2 can cooperate with the primary dust collector 3 and the bag dust collector 4 to complete the subsequent treatment of the ash, ensuring that the fly ash discharge of the boiler slag treatment system is more environmentally friendly.

[0024] Example 2 On the basis of Example 1, Figure 3 As shown, the impurity removal mechanism 8 includes: a disposal box 25, a feed port at the top of the disposal box 25 is connected with a discharge port of the disposal bin 7 through a pipeline, a magnetic conveyor belt 26 is arranged on the inner wall of the disposal box 25, and the magnetic conveyor belt 26 is driven by a first driving device, two mounting plates 27 are fixedly connected to the top of the disposal box 25 at a distance, a guide rod 28 is fixedly connected to the inner walls of the two mounting plates 27, a threaded rod 29 is rotatably connected to the mounting plate 27, and one end of the threaded rod 29 is fixedly connected to the output shaft of a driving motor 30, a sleeve 31 is threadedly connected to the threaded rod 29, and the top of the sleeve 31 is slidably connected to the guide rod 28, a fixed bracket 32 ​​is fixedly connected to the bottom of the sleeve 31, and the two ends of the bottom of the fixed bracket 32 ​​are respectively fixedly connected with a material removal plate 33 and a rake tooth 34; A material guide plate 35 is hinged on the left inner wall of the disposal box 25, the fixed end of an electric telescopic rod 36 is hinged on the inner wall of the disposal box 25, and the telescopic end of the electric telescopic rod 36 is hinged to the material guide plate 35, a support rod 37 is fixedly connected to the right inner wall of the disposal box 25, a material guide roller 38 is hinged to the support rod 37 through a mounting bracket 39, and both ends of a spring 40 are respectively connected to the support rod 37 and the mounting bracket 39.

[0025] Preferably, it also includes a recovery component 41, which is arranged at the bottom of the disposal box 25. The recovery component 41 includes: a baffle plate 42, which is fixedly connected to the bottom of the disposal box 25, a scraper plate 43 is fixedly connected to the inner wall of the disposal box 25, a mounting seat 44 is fixedly connected to the bottom of the disposal box 25, and a guide rail 45 is provided at the bottom of the mounting seat 44, a threaded rod 46 with opposite rotation directions is rotatably connected to the mounting seat 44, an output shaft of a driving motor 47 is fixedly connected to the threaded rod 46, a trapezoidal block 48 is fixedly connected to the bottom of the mounting seat 44, two mounting sleeves 49 are symmetrically threadedly connected to the threaded rod 46, and the bottom of the mounting sleeve 49 is slidably connected to the guide rail 45, a spring 51 is fixedly connected in the mounting sleeve 49, the bottom of the collecting trough 50 slides through the top of the mounting sleeve 49 and is connected to the spring 51, two wedge blocks are fixedly connected to the bottom of the collecting trough 50, and the inclined surface at the bottom of the wedge block is slidably connected to the inclined surface at the top of the trapezoidal block 48.

[0026] The working principle and beneficial effects of the above technical solution are: The above-mentioned automated boiler ash handling system is mainly used for effectively removing harmful substances such as heavy metals contained in the slag collected in the boiler 1 ash through the impurity removal mechanism 8 connected by the conveyor belt 9. When the ash collected in the disposal bin 7 needs to be discharged and processed, the ash in the disposal bin 7 is first transported to the feed port on the top of the disposal box 25, and the guide plate 35 is driven by the extension and contraction of an electric telescopic rod 36 hinged on the inner wall of the disposal box 25 to guide the slag transported into the disposal box 25, so that the slag entering the disposal box 25 can fall onto the magnetic conveyor belt 26 at a specified angle, thereby avoiding the accumulation and spillage of the slag when it is transported to the magnetic conveyor belt 26. The slag dropped on the magnetic conveyor belt 26 is continuously transported to the right along the magnetic conveyor belt 26 under the drive of the first driving device. At this time, the driving electric The machine 30 drives the fixedly connected threaded rod 29 to rotate, so that the sliding sleeve 31 threadedly connected to the threaded rod 29 can slide left and right along the guide rod 28, so that the fixed bracket 32 ​​fixedly connected to the bottom of the sliding sleeve 31 drives the material stripping plate 33 and the rake teeth 34 to move left and right at the same time, so as to continuously flatten and stir the slag accumulated on the magnetic conveyor belt 26, so that the metal substances contained in the slag on the magnetic conveyor belt 26 can be fully adsorbed by the magnetic conveyor belt 26, avoiding incomplete adsorption and incomplete ash removal. Secondly, the guide roller 38 hinged on the support rod 37 through the mounting bracket 39 can make the slag transported by the magnetic conveyor belt 26 fall to the right side of the baffle plate 42 at a uniform speed under the action of the spring 40, so that the slag that has passed the impurity removal is discharged through the discharge port of the disposal box 25.

[0027] By means of the recovery component 41 arranged at the bottom of the disposal box 25, the metal materials adsorbed on the magnetic conveyor belt 26 can be recovered. When the slag on the magnetic conveyor belt 26 falls to the right side of the baffle plate 42, the metal materials adsorbed on the magnetic conveyor belt 26 continue to move to the right. The metal materials adsorbed on the magnetic conveyor belt 26 are scraped off and collected by the scraper plate 43 fixedly connected to the inner wall of the disposal box 25. Secondly, the drive motor 2 47 drives the threaded rod 2 46 with opposite rotation directions to rotate synchronously on the mounting seat 44, so that the mounting sleeve 49 threadedly connected to the threaded rod 2 46 can move inward or outward along the guide rail 45 arranged at the bottom of the mounting seat 44. At this time, the fixedly connected The two wedge-shaped blocks at the bottom of the collecting trough 50 slide left and right along the inclined surface of the trapezoidal block 48, driving the collecting trough 50 to realize up and down reciprocating motion along the top of the mounting sleeve 49 under the action of the spring 2 51. The rotation of the above-mentioned threaded rod 26 realizes the adjustment of the left and right position of the collecting trough 50, which can better complete the metal material scraped off the magnetic conveyor belt 26 and fall into the collecting trough 50, and as the collecting trough 50 moves up and down, it can also effectively prevent the metal material in the collecting trough 50 from accumulating too high, thereby spilling out of the collecting trough 50. The above not only effectively guarantees the impurity removal efficiency of the slag, but also makes the collection of metal materials more reliable and efficient, and at the same time ensures that the automated boiler ash treatment system treats ash in a more environmentally friendly way.

[0028] Example 3 Based on Example 1 or 2, an automated boiler ash treatment method is applied to the automated boiler ash treatment system according to any one of claims 1 to 5, characterized in that the method comprises the following steps: Step S1: collecting and separately treating the ash generated during the combustion process of the boiler 1, so that the ash of the boiler 1 is discharged from the fly ash discharge port and the slag discharge port of the boiler 1; Step S2: The fly ash discharged from the boiler 1 in step S1 is transported by a pneumatic conveying system, and is sequentially processed by a heat exchange mechanism 2, a primary dust collector 3 and a bag filter 4, so that the fly ash is collected in a disposal bin 6 for final disposal; Step S3: performing heat exchange treatment on the fly ash transported to the heat exchange mechanism 2 in step S2 to recycle a large amount of waste heat in the fly ash and improve energy utilization; Step S4: The slag discharged from the slag outlet in step S1 is transported to the impurity removal mechanism 29 to remove and collect harmful substances such as heavy metals contained in the slag, so that the slag can be discharged safely.

[0029] The working principle and beneficial effects of the above technical solution are: The method for treating the ash of boiler 1 by the above-mentioned automated boiler ash treatment system is as follows: first, the ash generated during the combustion process of boiler 1 is collected and separately treated, so that the ash of boiler 1 is discharged from the fly ash discharge port and the slag discharge port of boiler 1, and then the fly ash discharged from boiler 1 is transported by a pneumatic conveying system, and is successively processed through the heat exchange mechanism 2, the primary dust collector 3 and the bag dust collector 4, so that the fly ash is collected in the disposal bin 6 for final disposal, wherein the fly ash transported to the heat exchange mechanism 2 is subjected to heat exchange treatment to recycle a large amount of waste heat in the fly ash and improve energy utilization, and at the same time, the slag discharged from the slag discharge port is transported to the impurity removal mechanism 29, and harmful substances such as heavy metals contained in the slag are removed and collected, so that the slag is safely discharged.

[0030] The above-mentioned method of the automated boiler ash treatment system has the following advantages: first, it can continuously and efficiently remove the ash from boiler 1, reduce the impact of the ash on the heating surface of boiler 1, and improve the operating efficiency of boiler 1; second, it reduces manual intervention, reduces labor intensity and labor costs; third, it can strictly control the emission and treatment process of ash, and reduce pollution and harm to the environment; fourth, through automated control technology and advanced mechanical equipment, the reliability and stability of the ash treatment system are improved.

[0031] Example 4 On the basis of Embodiment 1 or 2, the automated boiler ash treatment system further includes an ash transportation detection device, which is used for the automated boiler ash treatment system to detect the transportation state of the fly ash discharged from the boiler 1 during the treatment process. The ash transportation detection device includes: Densitometer, used to detect the density of fly ash transported inside the pipeline connecting the fly ash discharge port of boiler 1 and heat exchange mechanism 2; A flow rate sensor for detecting the flow rate of fly ash transported inside the pipeline connecting the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2; A rotational viscometer is used to detect the dynamic viscosity of the fly ash transported inside the pipeline connecting the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2; A controller and an alarm, wherein the controller is electrically connected to the density meter, the flow rate sensor, the rotational viscometer, and the alarm, and the controller controls the alarm to work based on the density meter, the flow rate sensor, and the rotational viscometer.

[0032] Preferably, the controller controls the alarm based on the density meter, flow rate sensor and rotational viscometer, including: calculating the convective heat transfer coefficient of fly ash transport during the process of the boiler ash treatment system treating the fly ash discharged from the boiler 1 according to the formula and the detection values ​​obtained by the density meter, flow rate sensor and rotational viscometer. The controller compares the convective heat transfer coefficient of fly ash transport during the process of the current boiler ash treatment system treating the fly ash discharged from boiler 1. The convective heat transfer coefficient of the fly ash transport is within the preset range. If the convective heat transfer coefficient of the fly ash transport during the fly ash treatment process of the current boiler ash treatment system is When the convective heat transfer coefficient of fly ash transportation is not within the preset range, the controller controls the alarm to sound an alarm: ; in, is the convective heat transfer coefficient of fly ash transport during the process of the ash handling system treating the fly ash discharged from boiler 1, is the Reynolds number of fly ash transported in pipelines, , is the density value detected by the density meter on the fly ash density transported by the pipeline connecting the fly ash discharge port of boiler 1 and the heat exchange mechanism 2, is the detection value of the flow rate sensor for the fly ash flow rate transported by the pipeline connecting the fly ash discharge port of boiler 1 and the heat exchange mechanism 2, is the detection value of the dynamic viscosity of fly ash transported by the pipeline connecting the fly ash discharge port of boiler 1 and heat exchange mechanism 2 using a rotational viscometer. is the diameter of the pipe connecting the fly ash discharge port of boiler 1 and the heat exchange mechanism 2, is the Prandtl number of fly ash flow at room temperature (which can be obtained by looking up the table according to the actual flow rate of fly ash transport), is the temperature difference correction coefficient (generally 1~1.1), It is the actual length of the pipeline connecting the fly ash discharge port of boiler 1 and the heat exchange mechanism 2.

[0033] The beneficial effects of the above technical solution are as follows: according to the formula and the detection values ​​of the density meter, the flow rate sensor and the rotational viscometer, the convective heat transfer coefficient of the fly ash transportation during the treatment of the fly ash discharged by the boiler 1 by the boiler ash treatment system is calculated, and the Reynolds number of the fly ash transported by the connecting pipeline, the density of the fly ash transported by the connecting pipeline between the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2, the flow rate of the fly ash transported by the connecting pipeline between the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2, the dynamic viscosity of the fly ash transported by the connecting pipeline between the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2, the diameter of the connecting pipeline between the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2, the Prandtl number at normal temperature of the fly ash flow, the temperature difference correction coefficient, and the actual length of the connecting pipeline between the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2 are comprehensively considered, so that the calculation result is more accurate and reliable; The controller controls the operation of the density meter, the flow rate sensor, the rotational viscometer and the alarm. When the actual boiler ash treatment system processes the fly ash discharged from the boiler 1 and the convective heat transfer coefficient of the fly ash transportation is not within the preset convective heat transfer coefficient range of the fly ash transportation, the controller controls the alarm to sound an alarm, thereby reminding the staff to promptly inspect the pipeline connecting the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2 in the boiler ash treatment system, and perform maintenance on the pipeline according to the actual inspection results to maintain the use requirements of the pipeline, while ensuring the normal working state of the boiler ash treatment system and the fly ash treatment efficiency, and effectively improving the service life of the pipeline connecting the fly ash discharge port of the boiler 1 and the heat exchange mechanism 2, further meeting the use requirements of the boiler ash treatment system for operational reliability and stability, and by real-time detection of the transportation state of the fly ash discharged from the boiler 1 during the treatment process, not only the efficiency of the boiler ash treatment system for ash treatment is increased, but also it is ensured that when the fly ash discharged from the boiler 1 is transported abnormally in the pipeline, it can be quickly discovered and the system operation can be stopped in time.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automated boiler ash treatment system, characterized in that: The invention comprises a heat exchange mechanism (2), wherein the fly ash discharge port at the top of the boiler (1) is connected to the heat exchange mechanism (2) arranged on one side of the boiler (1), a primary dust collector (3) and a bag dust collector (4) are arranged in sequence on one side of the heat exchange mechanism (2), and the heat exchange mechanism (2), the primary dust collector (3) and the bag dust collector (4) are connected through a pipeline, a transfer box (5) is connected to the discharge ports of the primary dust collector (3) and the bag dust collector (4), the transfer box (5) is connected to the feed port of the disposal bin (7) through a conveying pipeline (6), and the impurity removal mechanism (8) is connected to the slag discharge port at the bottom of the boiler (1) through a conveying belt (9).

2. The automated boiler ash treatment system according to claim 1, characterized in that: The heat exchange mechanism (2) comprises: a box body (10), the box body (10) is fixedly connected to the top of a support frame (11), the middle part of the heat exchange tube (12) is connected to the connecting tube (13), and the bottom of the heat exchange tube (12) is rotatably connected to a connecting head (14), the connecting head (14) is fixedly connected to the inner wall of the box body (10) through a fixing rod (15), a water inlet pipe (16) passes through the side wall of the box body (10) and is connected to the connecting head (14), a shell (17) is fixedly connected to the top of the box body (10), and a water outlet pipe (18) is rotatably passed through the shell body (17) and the top of the box body (10) and is rotatably connected to the water outlet of the connecting tube (13), and the water outlet pipe (18) is driven by a driving device.

3. The automated boiler ash treatment system according to claim 2, characterized in that: The support seat (23) is fixedly connected to one side of the support frame (11), the fan (24) is fixedly connected to the support seat (23), and the fan (24) is connected to a pipeline connecting the heat exchange mechanism (2) and the primary dust collector (3).

4. The automated boiler ash treatment system according to claim 1, characterized in that: The impurity removal mechanism (8) is connected to the slag outlet at the bottom of the boiler (1) through a conveyor belt (9), and the impurity removal mechanism (8) includes: a disposal box (25), a feed inlet at the top of the disposal box (25) is connected to the discharge outlet of the disposal bin (7) through a pipeline, a magnetic conveyor belt (26) is arranged on the inner wall of the disposal box (25), and the magnetic conveyor belt (26) is driven by a first driving device, two mounting plates (27) are fixedly connected to the top of the disposal box (25) at a distance, and a guide rod (2 8) is fixedly connected to the inner walls of the two mounting plates (27), a threaded rod (29) is rotatably connected to the mounting plate (27), and one end of the threaded rod (29) is fixedly connected to the output shaft of the driving motor (30), a sliding sleeve (31) is threadedly connected to the threaded rod (29), and the top of the sliding sleeve (31) is slidably connected to the guide rod (28), a fixed bracket (32) is fixedly connected to the bottom of the sliding sleeve (31), and the two ends of the bottom of the fixed bracket (32) are respectively fixedly connected with a material stripping plate (33) and a rake tooth (34); A material guide plate (35) is hinged on the left inner wall of the disposal box (25); a fixed end of an electric telescopic rod (36) is hinged on the inner wall of the disposal box (25); a telescopic end of the electric telescopic rod (36) is hinged to the material guide plate (35); a support rod (37) is fixedly connected to the right inner wall of the disposal box (25); a material guide roller (38) is hinged to the support rod (37) through a mounting bracket (39); and two ends of a spring (40) are respectively connected to the support rod (37) and the mounting bracket (39).

5. The automated boiler ash treatment system according to claim 4, characterized in that: The invention also includes a recovery component (41), which is arranged at the bottom of the disposal box (25). The recovery component (41) includes: a baffle plate (42), which is fixedly connected to the bottom of the disposal box (25), a scraper plate (43) which is fixedly connected to the inner wall of the disposal box (25), a mounting seat (44) which is fixedly connected to the bottom of the disposal box (25), and a guide rail (45) is provided at the bottom of the mounting seat (44), a threaded rod (46) which rotates in opposite directions is rotatably connected to the mounting seat (44), and an output shaft of a second drive motor (47) is connected to the threaded rod (46) (46) is fixedly connected, the trapezoidal block (48) is fixedly connected to the bottom of the mounting seat (44), two mounting sleeves (49) are symmetrically threadedly connected to the threaded rod (46), and the bottom of the mounting sleeve (49) is slidably connected to the guide rail (45), the second spring (51) is fixedly connected in the mounting sleeve (49), the bottom of the collecting trough (50) slides through the top of the mounting sleeve (49) and is connected to the second spring (51), and two wedge-shaped blocks are fixedly connected to the bottom of the collecting trough (50), and the inclined surface of the bottom of the wedge-shaped block is slidably connected to the inclined surface of the top of the trapezoidal block (48).

6. An automated boiler ash treatment method, applied to the automated boiler ash treatment system according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: Step S1: collecting and separately treating the ash generated during the combustion process of the boiler (1), so that the ash of the boiler (1) is discharged from the fly ash discharge port and the slag discharge port of the boiler (1); Step S2: The fly ash discharged from the boiler (1) in step S1 is transported by a pneumatic conveying system, and is sequentially processed by a heat exchange mechanism (2), a primary dust collector (3) and a bag filter (4), so that the fly ash is collected in a disposal bin (6) for final disposal; Step S3: performing heat exchange treatment on the fly ash transported to the heat exchange mechanism (2) in step S2, so as to recycle a large amount of waste heat in the fly ash and improve energy utilization; Step S4: The slag discharged from the slag outlet in step S1 is transported to the impurity removal mechanism (29), and harmful substances such as heavy metals contained in the slag are removed and collected, so that the slag can be discharged safely.

7. The automated boiler ash treatment system according to claim 1, characterized in that: It also includes ash conveying detection equipment, which is used for detecting the conveying state of the fly ash discharged from the boiler (1) during the processing of the fly ash discharged from the boiler (1) by the automated boiler (1) ash processing system, and the ash conveying detection equipment includes: A density meter for detecting the density of fly ash transported inside a pipeline connecting a fly ash discharge port of a boiler (1) and a heat exchange mechanism (2); A flow rate sensor for detecting the flow rate of fly ash transported inside a pipeline connecting a fly ash discharge port of a boiler (1) and a heat exchange mechanism (2); A rotational viscometer for detecting the dynamic viscosity of fly ash transported inside a pipeline connecting a fly ash discharge port of a boiler (1) and a heat exchange mechanism (2); A controller and an alarm, wherein the controller is electrically connected to the density meter, the flow rate sensor, the rotational viscometer, and the alarm, and the controller controls the alarm to work based on the density meter, the flow rate sensor, and the rotational viscometer.

8. The automated boiler ash treatment system according to claim 7, characterized in that: The controller controls the alarm based on the density meter, the flow rate sensor and the rotational viscometer to work as follows: The convective heat transfer coefficient of fly ash transport during the process of treating fly ash discharged from the boiler (1) by the boiler ash treatment system is calculated based on the formula and the test values ​​obtained by the density meter, flow rate sensor and rotational viscometer. The controller compares the convective heat transfer coefficient of the fly ash transport during the process of the current boiler ash treatment system treating the fly ash discharged from the boiler (1). If the current boiler ash treatment system processes the fly ash discharged from the boiler (1) during the process of processing the fly ash, the convective heat transfer coefficient of the fly ash transport is within the preset range of the convective heat transfer coefficient of the fly ash transport. When the convective heat transfer coefficient of fly ash transportation is not within the preset range, the controller controls the alarm to sound an alarm: ； in, is the convective heat transfer coefficient of fly ash transport during the process of the ash handling system treating the fly ash discharged from the boiler (1), is the Reynolds number of fly ash transported in pipelines, , is the value detected by the density meter of the fly ash density transported by the pipeline connecting the fly ash discharge port of the boiler (1) and the heat exchange mechanism (2), is the detection value of the flow rate sensor for the flow rate of fly ash transported by the pipeline connecting the fly ash discharge port of the boiler (1) and the heat exchange mechanism (2), is the value detected by a rotational viscometer of the dynamic viscosity of fly ash transported through the pipeline connecting the fly ash discharge port of the boiler (1) and the heat exchange mechanism (2), is the diameter of the pipe connecting the fly ash discharge port of the boiler (1) and the heat exchange mechanism (2), is the Prandtl number of fly ash flow at room temperature, is the temperature difference correction coefficient, It is the actual length of the pipeline connecting the fly ash discharge port of the boiler (1) and the heat exchange mechanism.

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