A coal cleaning device for effectively removing adhered coal in the coal chute

Abstract

The present invention discloses a coal cleaning device for effectively removing adhered coal in a coal dropping pipe, which comprises: a coal dropping pipe; a coal accumulation cleaning device arranged on the coal dropping pipe, and the coal accumulation cleaning device is used for cleaning the coal accumulation adhered in the coal dropping pipe; a coal accumulation detection device arranged on the coal dropping pipe, and the coal accumulation detection device is used for detecting the amount of coal accumulation in the coal dropping pipe; a control unit arranged on the outer side wall of the coal dropping pipe, and the control unit is used for automatically controlling the coal accumulation cleaning device to select different cleaning modes to clean the coal accumulation according to the amount of coal accumulation in the coal dropping pipe. In the present invention, a coal accumulation cleaning device is arranged on the coal dropping pipe, the amount of coal accumulation is automatically detected by the coal accumulation detection device, and the coal accumulation cleaning device is controlled by the control unit to select different cleaning modes to automatically clean the coal accumulation, so as to timely remove the coal accumulation in the coal dropping pipe, avoid the blockage of the coal accumulation in the coal dropping pipe. The fully automated control process greatly improves the working efficiency of coal accumulation cleaning, and also reduces the danger in the process of coal accumulation cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of coal chute cleaning, and particularly to a coal cleaning device for effectively removing adhered coal in a coal chute. Background Art

[0002] Since thermal power plants will inevitably purchase economical coal types with high ash content and high moisture content in order to reduce the cost of fuel, the usual coal chute is a straight pipe with the same diameter up and down. During the process of coal falling from the coal bunker through the feeder into the coal mill, the economical coal type with high ash content and high moisture content has a strong adhesion ability and will adhere to the inner wall of the coal chute during the feeding process and continuously accumulate. However, the coal chute is 3 - 5 meters long, and is connected to the feeder above and the coal mill grinding table below. It is difficult to disassemble during operation. In actual operation, the coal chute is prone to blockage. After blockage, the coal mill and the feeder need to be shut down, and a work permit is required for cleaning, which affects the unit's load carrying capacity. Moreover, during the process of cleaning the accumulated coal, the cleaning personnel need to work at height, posing a risk of working at height. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: the problem that the accumulated coal on the inner wall of the coal chute cannot be well cleaned in the prior art.

[0004] To solve the above technical problem, the present invention provides a coal cleaning device for effectively removing adhered coal in a coal chute, including:

[0005] A coal chute;

[0006] An accumulated coal cleaning device, arranged on the coal chute, and the accumulated coal cleaning device is used for cleaning the accumulated coal adhered in the coal chute;

[0007] An accumulated coal detection device, arranged on the coal chute, and the accumulated coal detection device is used for detecting the amount of accumulated coal in the coal chute;

[0008] A control unit, arranged on the outer side wall of the coal chute, and the control unit is used for automatically controlling the accumulated coal cleaning device to select different cleaning modes to clean the accumulated coal according to the amount of accumulated coal in the coal chute.

[0009] Further, the accumulated coal cleaning device includes:

[0010] A slide rail, arranged on the inner wall of the coal chute;

[0011] An automatic scraping disc device, arranged on the slide rail, and the automatic scraping disc device is used for moving up and down along the slide rail to scrape off the accumulated coal in the coal chute;

[0012] A vibration device, arranged on the outer wall of the coal chute, and the vibration device is used for emitting vibrations with different frequencies to shake off the accumulated coal in the coal chute;

[0013] The control unit includes:

[0014] A collection module, connected to the coal accumulation detection device, for collecting the coal accumulation amount data detected by the coal accumulation detection device;

[0015] A processing module, connected to the collection module, for processing the detected water level data;

[0016] A control module, connected to the processing module and respectively connected to the automatic scraping device and the vibration device, for controlling the working conditions of the automatic scraping device and the vibration device.

[0017] Further, the collection module is used to collect the coal accumulation amount △G before the coal chute is cleaned, and the control module is used to control the coal accumulation cleaning device;

[0018] The processing module is used to set a preset value G0 of the coal accumulation amount before the coal chute is cleaned, and the processing module is also used to set a first preset difference g1 of the coal accumulation amount before the coal chute is cleaned, a second preset difference g2 of the coal accumulation amount before the coal chute is cleaned, a third preset difference g3 of the coal accumulation amount before the coal chute is cleaned, and a fourth preset difference g4 of the coal accumulation amount before the coal chute is cleaned, and g1 < g2 < g3 < g4; the processing module is also used to set a first preset working condition matrix A1(a1, b1), a second preset working condition matrix A2(a2, b2), a third preset working condition matrix A3(a3, b3), and a fourth preset working condition matrix A4(a4, b4), where a1 to a4 are the displacement speeds of the first to fourth preset automatic scraping devices in sequence, and a1 < a2 < a3 < a4, and b1 to b4 are the vibration frequencies of the first to fourth preset vibration devices in sequence, b1 < b2 < b3 < b4;

[0019] According to the difference between the collected coal accumulation amount △G before the coal chute is cleaned and the preset value G0 of the coal accumulation amount before the coal chute is set, select the preset working condition matrix Ai as the working condition of the coal accumulation cleaning device;

[0020] When △G - G0 ≤ g1, select the first preset working condition matrix A1 as the working condition of the coal accumulation cleaning device;

[0021] When g1 < △G - G0 ≤ g2, select the second preset working condition matrix A2 as the working condition of the coal accumulation cleaning device;

[0022] When g2 < △G - G0 ≤ g3, select the third preset working condition matrix A3 as the working condition of the coal accumulation cleaning device;

[0023] When g3 < △G - G0 ≤ g4, select the fourth preset working condition matrix A4 as the working condition of the coal accumulation cleaning device;

[0024] Wherein, when selecting the i-th preset working condition matrix Ai as the working condition of the automatic scraping plate device, the control module controls the automatic scraping plate device to work at the i-th preset displacement speed ai, and the control module also controls the vibration device to work at the i-th preset vibration frequency bi, i = 1, 2, 3, 4.

[0025] Further, the processing module is also used to set the coal accumulation amount T1 after cleaning the first preset coal dropping pipe, the coal accumulation amount T2 after cleaning the second preset coal dropping pipe, the coal accumulation amount T3 after cleaning the third preset coal dropping pipe, and the coal accumulation amount T4 after cleaning the fourth preset coal dropping pipe, and T1 < T2 < T3 < T4; the processing module is also used to set the first preset correction coefficient m1, the second preset correction coefficient m2, the third preset correction coefficient m3, and the fourth preset correction coefficient m4, and 0.8 < m1 < m2 < m3 < m4 < 1;

[0026] The acquisition module is also used to acquire the coal accumulation amount △T after cleaning the coal dropping pipe. When the processing module selects the i-th preset working condition matrix Ai as the working condition of the coal accumulation cleaning device, it selects a preset correction coefficient according to the relationship between the coal accumulation amount △T after cleaning the coal dropping pipe and the coal accumulation amounts T after cleaning each preset coal dropping pipe to correct the working conditions in the i-th preset working condition matrix Ai:

[0027] When △T ≤ T1, no correction is made to the working conditions in the i-th preset working condition matrix Ai;

[0028] When T1 < △T ≤ T2, select the first preset correction coefficient m1 to correct Ai, and after correction, it is Ai(ai * m1, bi * m1);

[0029] When T2 < △T ≤ T3, select the second preset correction coefficient m2 to correct Ai, and after correction, it is Ai(ai * m2, bi * m2);

[0030] When T3 < △T ≤ T4, select the third preset correction coefficient m3 to correct Ai, and after correction, it is Ai(ai * m3, bi * m3);

[0031] When T4 < △T, select the fourth preset correction coefficient m4 to correct Ai, and after correction, it is Ai(ai * m4, bi * m4).

[0032] Further, the automatic scraping plate device includes:

[0033] Scraper disc, used to scrape the accumulated coal on the inner wall of the coal dropping pipe;

[0034] Drive motor, arranged inside the slide rail and connected to the scraper disc, the drive motor is used to drive the scraper disc to move up and down along the slide rail.

[0035] Further, the scraper disc is an annular structure, and a through hole is provided at the center of the scraper disc.

[0036] Further, the acquisition module is connected to the coal accumulation detection device through wireless communication;

[0037] The control module is also connected to the automatic scraper disc device and the vibration device through wireless communication.

[0038] Further, the vibration device is composed of multiple vibration motors, and the multiple vibration motors are arranged around the outer side wall of the coal dropping pipe.

[0039] Compared with the prior art, the beneficial effect of the coal cleaning device for effectively removing the adhered coal in the coal dropping pipe in the embodiment of the present invention is as follows:

[0040] In the present invention, a coal accumulation cleaning device is arranged on the coal dropping pipe, and the coal accumulation amount is automatically detected by the coal accumulation detection device. The coal accumulation cleaning device is controlled by the control unit to select different cleaning modes to automatically clean the coal accumulation, and the coal accumulation in the coal dropping pipe is timely cleaned, avoiding the blockage of the coal accumulation in the coal dropping pipe. The fully automated control process greatly improves the working efficiency of coal accumulation cleaning, and at the same time reduces the danger in the process of coal accumulation cleaning. Description of the Drawings

[0041] Figure 1 is the front view of the structure of the coal cleaning device for effectively removing the adhered coal in the coal dropping pipe in the embodiment of the present invention;

[0042] Figure 2 is the schematic diagram of the device included in the coal cleaning device for effectively removing the adhered coal in the coal dropping pipe in the embodiment of the present invention;

[0043] Figure 3 is the schematic diagram of the device included in the coal accumulation cleaning device of the control unit in the coal cleaning device for effectively removing the adhered coal in the coal dropping pipe in the embodiment of the present invention;

[0044] Figure 4 is the schematic diagram of the self-control unit in the coal cleaning device for effectively removing the adhered coal in the coal dropping pipe in the embodiment of the present invention;

[0045] Figure 5 is the schematic diagram of the device included in the automatic scraper disc device in the coal cleaning device for effectively removing the adhered coal in the coal dropping pipe in the embodiment of the present invention;

[0046] Figure 6It is the top view of the structure of the control module of the coal cleaning device that can effectively remove the caked coal in the coal chute in the embodiment of the present invention.

[0047] The description of the reference numerals is as follows:

[0048] 1. Coal chute; 2. Slide rail; 3. Scraping disc; 4. Driving motor; 5. Vibration motor. Specific embodiments

[0049] The following will further describe the specific embodiments of the present application in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0050] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0051] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0052] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0053] Such as Figure 1As shown, in the embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal chute is provided, including: a coal chute 1, a coal accumulation cleaning device, a coal accumulation detection device, and a control unit; the coal chute 1 is a straight pipe with the same diameter up and down; the coal accumulation cleaning device is arranged on the coal chute 1, and the coal accumulation cleaning device is used to clean the coal accumulated in the coal chute 1; the coal accumulation detection device is arranged on the coal chute 1, and the coal accumulation detection device is used to detect the amount of coal accumulated in the coal chute 1; the control unit is arranged on the outer side wall of the coal chute 1, and the control unit is used to automatically control the coal accumulation cleaning device to select different cleaning modes to clean the coal accumulation according to the amount of coal accumulated in the coal chute 1.

[0054] Furthermore, a coal accumulation cleaning device is arranged on the coal chute 1, and the amount of coal accumulation is automatically detected by the coal accumulation detection device. The control unit controls the coal accumulation cleaning device to select different cleaning modes to automatically clean the coal accumulation, and timely removes the coal accumulated in the coal chute 1, avoiding the blockage of the coal accumulated in the coal chute 1. The fully automated control process greatly improves the working efficiency of coal accumulation cleaning, and at the same time reduces the danger during the coal accumulation cleaning process.

[0055] In the embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal chute is provided. The coal accumulation cleaning device includes: a slide rail 2 is arranged on the inner wall of the coal chute 1; an automatic scraping disc device is arranged on the slide rail 2, and the automatic scraping disc device is used to move up and down along the slide rail 2 to scrape off the coal accumulated in the coal chute 1; a vibration device is arranged on the outer wall of the coal chute 1, and the vibration device is used to emit vibrations with different frequencies to shake off the coal accumulated in the coal chute 1.

[0056] Specifically, a plurality of slide rails 2 are provided, and the plurality of slide rails 2 are fixed on the inner side wall of the coal chute 1; the automatic scraping disc device is slidably connected to the plurality of slide rails 2 through pulleys, and the automatic scraping disc device can move up and down along the plurality of slide rails 2 to scrape off the coal accumulated on the inner side wall of the coal chute 1.

[0057] The control unit includes: a collection module, connected to the coal accumulation detection device, and the collection module is used to collect the data of the amount of coal accumulated detected by the coal accumulation detection device; a processing module, connected to the collection module, and the processing module is used to process the detected water level data; a control module, connected to the processing module and respectively connected to the automatic scraping disc device and the vibration device, and the control module is used to control the working conditions of the automatic scraping disc device and the vibration device.

[0058] In the embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal chute is provided. The collection module is used to collect the amount of coal accumulated △G before the coal chute 1 is cleaned, and the control module is used to control the coal accumulation cleaning device;

[0059] The processing module is used to set a preset value G0 of the coal accumulation amount before cleaning the coal chute 1. The processing module is also used to set a difference g1 of the coal accumulation amount before cleaning the first preset coal chute 1, a difference g2 of the coal accumulation amount before cleaning the second preset coal chute 1, a difference g3 of the coal accumulation amount before cleaning the third preset coal chute 1, and a difference g4 of the coal accumulation amount before cleaning the fourth preset coal chute 1, and g1 < g2 < g3 < g4. The processing module is also used to set a first preset working condition matrix A1(a1, b1), a second preset working condition matrix A2(a2, b2), a third preset working condition matrix A3(a3, b3), and a fourth preset working condition matrix A4(a4, b4), where a1 to a4 are the displacement speeds of the first to fourth preset automatic scraping devices in sequence, and a1 < a2 < a3 < a4, and b1 to b4 are the vibration frequencies of the first to fourth preset vibration devices in sequence, b1 < b2 < b3 < b4;

[0060] According to the difference between the coal accumulation amount △G before cleaning the coal chute 1 collected and the preset value G0 of the coal accumulation amount before cleaning the coal chute 1, a preset working condition matrix Ai is selected as the working condition of the coal accumulation cleaning device;

[0061] When △G - G0 ≤ g1, the first preset working condition matrix A1 is selected as the working condition of the coal accumulation cleaning device;

[0062] When g1 < △G - G0 ≤ g2, the second preset working condition matrix A2 is selected as the working condition of the coal accumulation cleaning device;

[0063] When g2 < △G - G0 ≤ g3, the third preset working condition matrix A3 is selected as the working condition of the coal accumulation cleaning device;

[0064] When g3 < △G - G0 ≤ g4, the fourth preset working condition matrix A4 is selected as the working condition of the coal accumulation cleaning device;

[0065] Among them, when the i-th preset working condition matrix Ai is selected as the working condition of the automatic scraping device, the control module controls the automatic scraping device to work at the i-th preset displacement speed ai, and the control module also controls the vibration device to work at the i-th preset vibration frequency bi, i = 1, 2, 3, 4.

[0066] Specifically, after the coal chute 1 has been discharging coal for a period of time, coal accumulation of varying degrees will occur. Since the amount of coal accumulated each time is different, it is necessary to select the specific working conditions of the coal accumulation cleaning device according to the difference between the amount of coal accumulated in the coal chute 1 before cleaning and the preset value of the amount of coal accumulated in the coal chute 1 before cleaning. These include the displacement speed of the automatic scraping device and the vibration frequency of the vibration device. The specific working conditions of these devices should be selected according to the amount of coal accumulation to ensure that the coal accumulated in the coal chute 1 can be accurately and effectively removed.

[0067] In an embodiment of the present application, a coal cleaning device for effectively removing adhered coal in a coal chute is provided. The processing module is further configured to set a first preset amount of coal accumulation T1 after cleaning the coal chute 1, a second preset amount of coal accumulation T2 after cleaning the coal chute 1, a third preset amount of coal accumulation T3 after cleaning the coal chute 1, and a fourth preset amount of coal accumulation T4 after cleaning the coal chute 1, and T1 < T2 < T3 < T4; the processing module is further configured to set a first preset correction coefficient m1, a second preset correction coefficient m2, a third preset correction coefficient m3, and a fourth preset correction coefficient m4, and 0.8 < m1 < m2 < m3 < m4 < 1;

[0068] The acquisition module is further configured to acquire the amount of coal accumulation ΔT after cleaning the coal chute 1. When the processing module selects the i-th preset working condition matrix Ai as the working condition of the coal accumulation cleaning device, it selects a preset correction coefficient according to the relationship between the amount of coal accumulation ΔT after cleaning the coal chute 1 and the amount of coal accumulation T after cleaning each preset coal chute 1 to correct the working conditions in the i-th preset working condition matrix Ai:

[0069] When ΔT ≤ T1, the working conditions in the i-th preset working condition matrix Ai are not corrected;

[0070] When T1 < ΔT ≤ T2, the first preset correction coefficient m1 is selected to correct Ai, and after correction, it is Ai(ai * m1, bi * m1);

[0071] When T2 < ΔT ≤ T3, the second preset correction coefficient m2 is selected to correct Ai, and after correction, it is Ai(ai * m2, bi * m2);

[0072] When T3 < ΔT ≤ T4, the third preset correction coefficient m3 is selected to correct Ai, and after correction, it is Ai(ai * m3, bi * m3);

[0073] When T4 < ΔT, the fourth preset correction coefficient m4 is selected to correct Ai, and after correction, it is Ai(ai * m4, bi * m4).

[0074] Specifically, since the coal accumulation cleaning device will have working errors after multiple uses, it is necessary to timely correct the working conditions of the coal accumulation cleaning device according to the relationship between the coal accumulation amount in the coal dropping pipe 1 after cleaning and the preset coal accumulation amounts in each coal dropping pipe 1 after cleaning, so as to ensure that the coal accumulation cleaning device can clean the coal accumulation in the coal dropping pipe 1 completely.

[0075] In an embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal dropping pipe is provided. The automatic scraping disc device includes: a scraping disc 3 for scraping the coal accumulation on the inner wall of the coal dropping pipe 1; a driving motor 4 arranged in the slide rail 2 and connected to the scraping disc 3, and the driving motor 4 is used to drive the scraping disc 3 to move up and down along the slide rail 2.

[0076] Specifically, multiple groups of scraping discs 3 can be arranged in the automatic scraping disc device to improve the cleaning rate. The outer side of the scraping disc 3 is in a blade shape. Setting the scraping disc 3 in a blade shape can scrape off the residual coal slag and moisture on the inner wall of the coal dropping pipe 1 cleanly.

[0077] In an embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal dropping pipe is provided. The scraping disc 3 is in an annular structure, and a through hole is opened at the center of the scraping disc 3.

[0078] Specifically, the scraping disc 3 is in an annular structure, and its center is a hollow structure, which can enable the coal material falling from above to fall through the through hole to the lower part of the scraping disc 3. And the scraping disc 3 can be inclined from the side to the center, which can reduce the accumulation of coal material on the scraping disc 3 and make the coal material falling on the scraping disc 3 fall off naturally.

[0079] In an embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal dropping pipe is provided. The acquisition module is connected to the coal accumulation detection device through wireless communication; the control module is also connected to the automatic scraping disc device and the vibration device through wireless communication.

[0080] In an embodiment of the present application, a coal cleaning device for effectively removing the adhered coal in the coal dropping pipe is provided. The vibration device is composed of multiple vibration motors 5, and the multiple vibration motors 5 are arranged around the outer side wall of the coal dropping pipe 1.

[0081] Specifically, the vibration frequencies of the multiple vibration motors 5 are all the same and are uniformly controlled by the control module. And the multiple vibration motors 5 can be arranged at different positions around the outer side wall of the coal dropping pipe 1 according to the actual coal adhesion situation. When they work, they can shake off the coal accumulation on the inner wall of the coal dropping pipe 1.

[0082] In summary, the embodiment of the present invention provides a coal cleaning device for effectively removing the caking coal in the coal chute, which includes: a coal chute 1; a coal accumulation cleaning device arranged on the coal chute 1, and the coal accumulation cleaning device is used for cleaning the coal accumulation adhered to the inner part of the coal chute 1; a coal accumulation detection device arranged on the coal chute 1, and the coal accumulation detection device is used for detecting the amount of coal accumulation in the coal chute 1; a control unit arranged on the outer side wall of the coal chute 1, and the control unit is used for automatically controlling the coal accumulation cleaning device to select different cleaning modes to clean the coal accumulation according to the amount of coal accumulation in the coal chute 1. In the present invention, a coal accumulation cleaning device is arranged on the coal chute 1, and the amount of coal accumulation is automatically detected by the coal accumulation detection device. The control unit controls the coal accumulation cleaning device to select different cleaning modes to automatically clean the coal accumulation, and timely removes the coal accumulation in the coal chute 1, avoiding the blockage of the coal accumulation in the coal chute 1. The fully automated control process greatly improves the working efficiency of coal accumulation cleaning, and at the same time reduces the danger in the process of coal accumulation cleaning.

[0083] Finally, it should be noted that: Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and variations.

[0084] The above is only one embodiment of the present invention, but it cannot be used to limit the scope of the present invention. Any structural changes made in accordance with the present invention, as long as they do not deviate from the essence of the present invention, should be regarded as falling within the protection scope of the present invention and being restricted. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process and related descriptions of the above-described system can refer to the corresponding process in the foregoing method embodiment, and will not be repeated here.

[0085] The term "including" or any other similar term is intended to cover non-exclusive inclusion, so that a process, method, article or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, methods, articles or devices / equipment.

[0086] So far, the technical solutions of the present invention have been described in conjunction with the further embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0087] The above is only the preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention.

Claims

1. A coal cleaning device for effectively removing adhered coal in a coal chute, characterized in that, Including: Coal dropping pipe; Coal accumulation cleaning device, arranged on the coal dropping pipe, and used for cleaning the coal accumulation adhered in the coal dropping pipe; Coal accumulation detection device, arranged on the coal dropping pipe, and used for detecting the amount of coal accumulation in the coal dropping pipe; Control unit, arranged on the outer side wall of the coal dropping pipe, and used for automatically controlling the coal accumulation cleaning device to select different cleaning modes to clean the coal accumulation according to the amount of coal accumulation in the coal dropping pipe; The coal accumulation cleaning device includes: Slide rail, arranged on the inner wall of the coal dropping pipe; Automatic scraping plate device, arranged on the slide rail, and used for moving up and down along the slide rail to scrape off the coal accumulation in the coal dropping pipe; Vibration device, arranged on the outer wall of the coal dropping pipe, and used for emitting vibrations with different frequencies to shake off the coal accumulation in the coal dropping pipe; The control unit includes: Acquisition module, connected with the coal accumulation detection device, and used for acquiring the data of the amount of coal accumulation detected by the coal accumulation detection device; Processing module, connected with the acquisition module, and used for processing the detected data of the amount of coal accumulation; Control module, connected with the processing module, and respectively connected with the automatic scraping plate device and the vibration device, and used for controlling the working conditions of the automatic scraping plate device and the vibration device; The acquisition module is used for acquiring the amount of coal accumulation △G before cleaning the coal dropping pipe, and the control module is used for controlling the coal accumulation cleaning device; The processing module is used for setting the preset value G0 of the amount of coal accumulation before cleaning the coal dropping pipe, and the processing module is also used for setting the first preset difference g1 of the amount of coal accumulation before cleaning the coal dropping pipe, the second preset difference g2 of the amount of coal accumulation before cleaning the coal dropping pipe, the third preset difference g3 of the amount of coal accumulation before cleaning the coal dropping pipe, and the fourth preset difference g4 of the amount of coal accumulation before cleaning the coal dropping pipe, and g1 < g2 < g3 < g4; the processing module is also used for setting the first preset working condition matrix A1(a1, b1), the second preset working condition matrix A2(a2, b2), the third preset working condition matrix A3(a3, b3), and the fourth preset working condition matrix A4(a4, b4), where a1 to a4 are the displacement speeds of the first to fourth preset automatic scraping plate devices in sequence, and a1 < a2 < a3 < a4, and b1 to b4 are the vibration frequencies of the first to fourth preset vibration devices in sequence, b1 < b2 < b3 < b4; According to the difference between the acquired amount of coal accumulation △G before cleaning the coal dropping pipe and the preset value G0 of the amount of coal accumulation before cleaning the coal dropping pipe, select the preset working condition matrix Ai as the working condition of the coal accumulation cleaning device; When △G - G0 ≤ g1, select the first preset working condition matrix A1 as the working condition of the coal accumulation cleaning device; When g1 < △G - G0 ≤ g2, select the second preset working condition matrix A2 as the working condition of the coal accumulation cleaning device; When g2 < △G - G0 ≤ g3, select the third preset working condition matrix A3 as the working condition of the coal accumulation cleaning device; When g3 < △G - G0 ≤ g4, select the fourth preset working condition matrix A4 as the working condition of the coal accumulation cleaning device; Wherein, when the i-th preset working condition matrix Ai is selected as the working condition of the automatic scraping plate device, the control module controls the automatic scraping plate device to work at the i-th preset displacement speed ai, and the control module also controls the vibration device to work at the i-th preset vibration frequency bi, i = 1, 2, 3, 4; The processing module is further configured to set the coal accumulation amount T1 after cleaning the first preset coal dropping pipe, the coal accumulation amount T2 after cleaning the second preset coal dropping pipe, the coal accumulation amount T3 after cleaning the third preset coal dropping pipe, and the coal accumulation amount T4 after cleaning the fourth preset coal dropping pipe, and T1 < T2 < T3 < T4; the processing module is further configured to set the first preset correction coefficient m1, the second preset correction coefficient m2, the third preset correction coefficient m3, and the fourth preset correction coefficient m4, and 0.8 < m1 < m2 < m3 < m4 < 1; The acquisition module is further configured to acquire the coal accumulation amount △T after cleaning the coal dropping pipe. When the i-th preset working condition matrix Ai is selected as the working condition of the coal accumulation cleaning device, the processing module selects a preset correction coefficient according to the relationship between the coal accumulation amount △T after cleaning the coal dropping pipe and the coal accumulation amounts T of each preset coal dropping pipe to correct the working conditions in the i-th preset working condition matrix Ai: When △T ≤ T1, the working conditions in the i-th preset working condition matrix Ai are not corrected; When T1 < △T ≤ T2, select the first preset correction coefficient m1 to correct Ai, and after correction, it is Ai(ai * m1, bi * m1); When T2 < △T ≤ T3, select the second preset correction coefficient m2 to correct Ai, and after correction, it is Ai(ai * m2, bi * m2); When T3 < △T ≤ T4, select the third preset correction coefficient m3 to correct Ai, and after correction, it is Ai(ai * m3, bi * m3); When T4 < △T, select the fourth preset correction coefficient m4 to correct Ai, and after correction, it is Ai(ai * m4, bi * m4).

2. The coal cleaning device for effectively removing the adhered coal in the coal dropping pipe according to claim 1, wherein, The automatic scraping plate device includes: A scraping plate for scraping the coal accumulation on the inner wall of the coal dropping pipe; A driving motor is arranged in the slide rail and is connected to the scraping plate. The driving motor is used to drive the scraping plate to move up and down along the slide rail.

3. The coal cleaning device for effectively removing the adhered coal in the coal dropping pipe according to claim 2, wherein The scraping plate is an annular structure, and a through hole is provided at the center of the scraping plate.

4. The coal cleaning device for effectively removing the adhered coal in the coal dropping pipe according to claim 1, wherein The acquisition module is connected to the coal accumulation detection device through wireless communication; The control module is also connected to the automatic scraping plate device and the vibration device through wireless communication.

5. The coal cleaning device for effectively removing the adhered coal in the coal dropping pipe according to claim 1, wherein The vibration device is composed of a plurality of vibration motors, and the plurality of vibration motors are arranged around the outer wall of the coal dropping pipe.

Images