CN116513757A - Control method and device for return cleaning of conveyor belt - Google Patents
Control method and device for return cleaning of conveyor belt Download PDFInfo
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- CN116513757A CN116513757A CN202310602589.1A CN202310602589A CN116513757A CN 116513757 A CN116513757 A CN 116513757A CN 202310602589 A CN202310602589 A CN 202310602589A CN 116513757 A CN116513757 A CN 116513757A
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- cleaning box
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- pressure
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- 238000004140 cleaning Methods 0.000 title claims abstract description 305
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 168
- 239000010865 sewage Substances 0.000 claims description 65
- 239000007788 liquid Substances 0.000 claims description 63
- 238000010926 purge Methods 0.000 claims description 20
- 238000007790 scraping Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/22—Cleaning devices comprising fluid applying means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/12—Cleaning devices comprising scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/24—Cleaning devices comprising plural diverse cleaning devices
Abstract
The invention discloses a control method and a device for return cleaning of a conveyor belt. Wherein the method comprises the following steps: detecting whether the cleaning box rises to a preset cleaning position or not to obtain a first detection result; if the first detection result is yes, detecting whether a space between the cleaning box and the return stroke of the conveyor belt forms flowing negative pressure relative to the outside of the cleaning box, and obtaining a second detection result; and under the condition that the second detection result is yes, controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure. The invention solves the technical problem of incomplete cleaning of the return stroke of the conveying belt in the prior art.
Description
Technical Field
The invention relates to the field of intelligent control, in particular to a control method and device for cleaning a conveyor belt in a return path.
Background
In the related art, there are more and more scenes in which materials are transported using a conveyor belt, but for the transportation process itself, there may be a problem in that residual materials adhere to the conveyor belt after transporting various materials, which are difficult to remove, thereby affecting the normal operation of the conveyor belt. Meanwhile, due to more or less residues of materials, the quality of products transported later can be influenced, or the conveyor belt needs to be cleaned by manual control of cleaning equipment by means of manpower and material resources, but the conveyor belt cannot be cleaned safely and effectively thoroughly by a manual control method.
In the prior art, the cleaning of the conveyor belt by manual control of the cleaning device is far from sufficient, since the conveyor belt surface also falls down with time. And because of the increased manpower resources, not only the cost of cleaning the conveyor belt is increased, but also the cleaning equipment cannot be safely and effectively controlled to thoroughly clean the conveyor belt, and the working efficiency of cleaning the conveyor belt is reduced. In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a control method and a device for cleaning a return stroke of a conveyor belt, which at least solve the technical problem that the cleaning of the return stroke of the conveyor belt is not thorough in the prior art.
According to an aspect of the embodiment of the present invention, there is provided a control method for cleaning a return trip of a conveyor belt, including: detecting whether the cleaning box rises to a preset cleaning position or not to obtain a first detection result; if the first detection result is yes, detecting whether a space between the cleaning box and the conveyor belt loop forms flowing negative pressure relative to the outside of the cleaning box, and obtaining a second detection result; and under the condition that the second detection result is yes, controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure.
Optionally, if the first detection result is yes, detecting whether a space between the cleaning box and the conveyor belt loop forms a flowing negative pressure relative to the outside of the cleaning box, to obtain a second detection result, including: if the first detection result is yes, detecting whether the conveyor belt is in an operating state or not, and detecting whether a high-pressure water pump for providing high-pressure water for a high-pressure water pipe in the cleaning box is provided with water supply or not; and detecting whether a space between the cleaning box and the return stroke of the conveyor belt forms flowing negative pressure relative to the outside of the cleaning box or not under the condition that the detection result is that the conveyor belt is in an operating state and the high-pressure water pump supplies water, so as to obtain a second detection result.
Optionally, in the case that the detection result includes a state in which the high-pressure water pump has water supply, the method further includes: detecting whether a filter element of a clear water filter is in a blocked state, wherein the clear water filter is used for filtering water before being conveyed to the high-pressure water pump.
Optionally, the detecting whether the filter element of the clear water filter is in a blocked state includes: acquiring a first water pressure before passing through the clear water filter and a second water pressure after passing through the clear water filter; acquiring a water pressure difference between the first water pressure and the second water pressure; based on the water pressure differential, it is determined whether a cartridge of the clean water filter is in a blocked state.
Optionally, the controlling the purge bin to purge the conveyor belt return under the flow negative pressure includes: starting a high-pressure water pipe connected in the cleaning box to flush the return stroke of the conveyor belt; controlling a scraper in the cleaning box to scrape off materials on the return stroke of the washed conveyor belt; and opening a suction pipe connected in the cleaning box to suck the space between the cleaning box and the conveyor belt return, and returning the conveyor belt Cheng Fenggan after the scraping operation.
Optionally, after the high-pressure water pipe connected in the cleaning box is opened to flush the return stroke of the conveyor belt, the cleaning device further comprises: and driving the high-pressure water pump connected to the high-pressure water pipe by adopting a variable frequency motor, and adjusting the water pressure in the high-pressure water pipe by adjusting the rotating speed of the high-pressure water pump.
Optionally, the controlling the cleaning tank to clean the conveyor belt return under the negative flow pressure further includes: opening a locking valve in the cleaning box, and discharging the collected sewage in the cleaning box through a main sewage outlet; closing a bypass blow-down valve in the cleaning box, wherein the bypass blow-down valve is used for discharging sewage which is collected in the cleaning box and swept out by the conveyor belt Cheng Qing when being opened; and closing the air channel filter blow-down valve, wherein the air channel filter blow-down valve is used for discharging sewage in the air channel filter when being opened, and the air channel filter is used for filtering out the sewage from the air sucked in the cleaning box.
Optionally, after the controlling the purge bin to purge the conveyor belt return under the flow negative pressure, further comprising: detecting whether the liquid level sensed by a cleaning box liquid level sensor in the cleaning box exceeds a first liquid level threshold value, and sending out first alarm information under the condition that the liquid level sensed by the cleaning box liquid level sensor in the cleaning box exceeds the first liquid level threshold value as a detection result, wherein the first alarm information is used for prompting that the bypass sewage discharge valve in the cleaning box needs to be opened so as to discharge sewage in the cleaning box; detecting whether the liquid level sensed by the liquid level sensor of the air duct filter in the air duct filter exceeds a second liquid level threshold, and sending out second alarm information under the condition that the liquid level sensed by the liquid level sensor of the air duct filter in the air duct filter exceeds the second liquid level threshold as a detection result, wherein the second alarm information is used for prompting that an air duct filter blow-down valve on the air duct filter needs to be opened so as to discharge sewage in the air duct filter.
Optionally, the controlling the cleaning tank to clean the conveyor belt return under the negative flow pressure further includes: when an exhaust valve is provided at a fan outlet of a centrifugal fan connected to the suction pipe, the exhaust air quantity of the centrifugal fan is controlled by controlling the opening degree of the exhaust valve.
Optionally, after the controlling the purge bin to purge the conveyor belt return under the flow negative pressure, further comprising: detecting whether the conveyor belt stops running; when the detection result shows that the conveyor belt stops running, a high-pressure water pump for providing high-pressure water for the high-pressure water pipe is turned off, and the high-pressure water pipe stops flushing the return stroke of the conveyor belt; closing a centrifugal fan for sucking the space between the cleaning box and the return stroke of the conveyor belt, and stopping sucking the space; and controlling the scraping plate to stop scraping operation on the washed material on the return stroke of the conveyor belt.
Optionally, in the case that the detection result is that the conveyor belt stops running, the method further includes: opening a bypass blow-down valve in the cleaning box to discharge the sewage collected in the cleaning box and swept out from the conveyor belt loop Cheng Qing; opening a blow-down valve of the air duct filter, and discharging sewage filtered from the air sucked in the cleaning box in the air duct filter; and controlling the air locking valve in the cleaning box to continuously run for a preset time so as to smoothly discharge the sewage in the cleaning box.
Optionally, in the case that the detection result is that the conveyor belt stops running, the method further includes: and controlling the cleaning box to descend to a preset placement position.
According to another aspect of the embodiment of the present invention, there is also provided a control device for cleaning a return path of a conveyor belt, including: the first detection module is used for detecting whether the cleaning box rises to a preset cleaning position or not to obtain a first detection result; the second detection module is used for detecting whether a space between the cleaning box and the conveyor belt loop forms flowing negative pressure relative to the outside of the cleaning box or not under the condition that the first detection result is yes, so as to obtain a second detection result; and the control module is used for controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure under the condition that the second detection result is yes.
According to still another aspect of the embodiments of the present invention, there is further provided a computer readable storage medium, where the computer readable storage medium includes a stored program, and when the program runs, the control method for controlling an apparatus where the computer readable storage medium is located to execute any one of the foregoing control methods for cleaning a backhaul of a conveyor belt.
According to still another aspect of the embodiment of the present invention, there is also provided a computer apparatus including: a memory and a processor, the memory storing a computer program; the processor is configured to execute a computer program stored in the memory, where the computer program when executed causes the processor to execute the control method for cleaning the backhaul of the conveyor belt according to any one of the above.
In the embodiment of the invention, the detection result is obtained by detecting the position of the cleaning box and detecting the negative pressure state of the space between the cleaning box and the return stroke of the conveyor belt, and the cleaning box is controlled to clean the return stroke of the conveyor belt based on the detection result, so that the purpose of thoroughly cleaning the return stroke of the conveyor belt is achieved, the cleaning state of the cleaning box is automatically determined, the cleaning box is controlled to clean the return stroke of the conveyor belt more comprehensively and thoroughly, the technical effect of improving the working efficiency of the return stroke cleaning of the conveyor belt is further achieved, and the technical problem that the return stroke cleaning of the conveyor belt is not thorough in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a flow chart of a method of controlling a conveyor belt return sweep in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a conveyor belt cleaning apparatus according to an embodiment of the invention;
FIG. 3 is a logic diagram of a belt cleaning control method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a control device for belt return cleaning according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present invention, there is provided a method embodiment of a method for controlling a conveyor belt return sweep, it being noted that the steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and that, although a logical sequence is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in a different order than that illustrated herein.
Fig. 1 is a flowchart of a control method of belt return cleaning according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S102, detecting whether the cleaning box rises to a preset cleaning position or not, and obtaining a first detection result;
as an alternative embodiment, the control method of the belt return cleaning can be applied to belt cleaning, wherein the belt can be a plurality of belts or belts with belt conveying functions for conveying materials or conveying large, medium and small articles. For example: the conveyor belt for transporting chemical raw materials in the chemical industry can comprise various chemical substances, a conveyor belt for transporting metal powder, coal and other substances in the metallurgical industry, a conveyor belt for transporting grain and grass in the grain industry, and the like.
As an alternative embodiment, determining the cleaning position of the cleaning tank by detecting whether the cleaning tank is raised to a predetermined cleaning position may effectively provide cleaning for the conveyor belt return, where the cleaning tank may be any tank having a cleaning function, and the cleaning tank may include: a scraper for cleaning the sewage on the conveyor belt and scraping the sewage attached to the conveyor belt after cleaning, a cleaning device for self-cleaning the cleaning box after cleaning, and the like. The cleaning box can be further provided with a lifting device for lifting the cleaning box to a preset cleaning position so as to ensure that the positions of other subsequent equipment or conveying belts can be matched, and thus the return cleaning work of the conveying belt can be normally carried out.
Step S104, detecting whether a space between the cleaning box and the conveyor belt is formed into flowing negative pressure relative to the outside of the cleaning box or not under the condition that the first detection result is yes, so as to obtain a second detection result;
as an alternative embodiment, after detecting that the position of the cleaning tank has risen to a predetermined cleaning position, it is possible to establish a flowing negative pressure in the space between the cleaning tank and the return belt with respect to the pressure outside the cleaning tank, and the air circulation in the space between the cleaning tank and the return belt is quickened by using the flowing negative pressure, so that the cleaned conveyor belt can be dried quickly.
As an alternative embodiment, in the case that the first detection result is yes, detecting whether a negative flow pressure is formed in a space between the cleaning tank and the return belt with respect to the outside of the cleaning tank, to obtain a second detection result, including: under the condition that the first detection result is yes, detecting whether the conveyor belt is in an operating state, wherein the conveyor belt is in the operating state, and cleaning the conveyor belt only in a meaning, and detecting whether a high-pressure water pump for providing high-pressure water for a high-pressure water pipe in the cleaning box is provided with water supply or not, so that the water source is supplied in the cleaning process, and the cleaning equipment in the cleaning box and the conveyor belt are prevented from being rubbed by the water shortage so as to cause the conveyor belt to be damaged to a certain extent; and detecting whether a space between the cleaning box and the return stroke of the conveyor belt forms flowing negative pressure relative to the outside of the cleaning box or not under the condition that the conveyor belt is in an operating state as a detection result and the high-pressure water pump supplies water, so as to obtain a second detection result.
As an alternative embodiment, in the case that the detection result includes a state in which the high-pressure water pump has water supply, the method further includes: detecting whether a filter element of the clear water filter is in a blocked state, wherein the clear water filter is used for filtering water before being conveyed to the high-pressure water pump.
As an alternative embodiment, the above-mentioned clear water filter may be further provided with a water pressure sensor, and the filter element of the clear water filter may be provided with a water pressure sensor on the upper and lower sides thereof, respectively, for detecting whether the filter element of the clear water filter is in a blocked state, including: acquiring a first water pressure before passing through the clear water filter and a second water pressure after passing through the clear water filter; acquiring a water pressure difference between the first water pressure and the second water pressure; based on the water pressure differential, it is determined whether the cartridge of the clean water filter is in a blocked state.
As an alternative embodiment, there may be various ways of detecting whether the filter element of the clear water filter is in a clogged state, for example: directly observe the filter core of clear water filter and have the jam according to output water velocity, still can set up the water gauge in the delivery port, judge whether the water yield is normal under this preset water pressure based on preset pressure size and the water yield count of water gauge to judge whether the filter core of clear water filter is blockked up.
And S106, if the second detection result is yes, controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure.
As an alternative embodiment, the high-pressure water pipe connected in the cleaning box can be controlled to be opened to flush the return stroke of the conveying belt when the existence of the negative pressure is detected; controlling a scraper in the cleaning box to scrape off materials on the return stroke of the washed conveyor belt; the suction pipe connected to the inside of the cleaning tank is opened to suck the space between the cleaning tank and the conveyor belt return path, and the conveyor belt after the scraping operation is returned Cheng Fenggan. The high-pressure water pipe can be connected with a clean water filter, the water pressure can be adjusted, and the scraping plate in the cleaning box can be adjusted in various ways, for example: the angle between the scraping plate and the conveying belt is adjusted, and the materials attached to the conveying belt possibly comprise hard objects which are difficult to scrape off, the materials need to be scraped off at a larger angle, and if the included angle between the scraping plate and the conveying belt is smaller, the hard objects are clamped with the conveying belt to drag, so that the conveying belt is easily scratched.
As an alternative embodiment, the control may turn on the high-pressure water pipe connected to the cleaning tank to flush the return stroke of the conveyor belt, and the variable-frequency motor may be used to drive the high-pressure water pump connected to the high-pressure water pipe, and by adjusting the rotation speed of the high-pressure water pump, the water pressure in the high-pressure water pipe may be adjusted, and the high-pressure water pump may determine different high-pressure water to flush the conveyor belt based on the material transported by the conveyor belt. For example, the conveyor belt is used for transporting substances such as coal mines, cement and the like which are easily adhered or adhered to the surface of the conveyor belt, and high-pressure water with high water pressure can be selected for cleaning the conveyor belt. The conveyer belt transportation is large-scale article, like express delivery, article that can not adhere to on the conveyer belt surface such as luggage, and then only what need consider is the conveyer belt surface because the dust that probably adheres to outside is exposed for a long time, because the dust is more easy for washing than colliery, cement, then can select the lower water of water pressure to wash the conveyer belt, if the water pressure is too big is instead easy to wash the dust into the earth that stickness is bigger, more easily adheres to the conveyer belt surface. Based on this, cleaning of the conveyor belt can be achieved more selectively and intelligently.
As an alternative embodiment, the control cleaning box cleans the conveyor belt return stroke under the flowing negative pressure, and further comprises: opening a locking valve in the cleaning box, and discharging the collected sewage in the cleaning box through a main sewage outlet; closing a bypass blow-down valve in the cleaning box, wherein the bypass blow-down valve is used for discharging sewage collected in the cleaning box and swept out from a conveyor belt Cheng Qing when being opened; the air locking valve can discharge sewage after cleaning the conveyor belt to a sewage collecting device or other conveyor belts for conveying sewage, and the air locking valve discharges sewage and blanking in a rotating mode, so that the negative pressure environment in the cleaning box can be prevented from being damaged by the air locking valve, and cleaning work can be normally performed, unlike other pollution discharge modes.
As an alternative embodiment, when the cleaning box is controlled to clean the return stroke of the conveyor belt under the flowing negative pressure, the cleaning box can also: detecting whether the liquid level sensed by a cleaning box liquid level sensor in the cleaning box exceeds a first liquid level threshold value, and sending out first alarm information under the condition that the liquid level sensed by the cleaning box liquid level sensor in the cleaning box exceeds the first liquid level threshold value as a detection result, wherein the first alarm information is used for prompting that a bypass sewage discharge valve in the cleaning box needs to be opened so as to discharge sewage in the cleaning box; through the mode that sets up level sensor in cleaning the case, come the liquid level of in time measuring sewage, can judge whether the main drain is normal operation through this liquid level, or whether the main drain can in time discharge sewage smoothly, and first liquid level threshold is looked into to the liquid level, then judges that main drain can't discharge sewage smoothly, sends warning information and reports to the police sewage storage too much this moment to open the bypass blowoff valve for supplementary discharge sewage.
As an optional embodiment, the control cleaning box cleans the return stroke of the conveyor belt under the flowing negative pressure, and can also detect whether the liquid level sensed by the liquid level sensor of the air duct filter in the air duct filter exceeds a second liquid level threshold, and send out second alarm information when the detection result is that the liquid level sensed by the liquid level sensor of the air duct filter in the air duct filter exceeds the second liquid level threshold, where the second alarm information is used for prompting that the air duct filter blow-down valve on the air duct filter needs to be opened to discharge sewage in the air duct filter. In the process of drying the cleaned conveyor belt by using negative pressure, the air duct filter may suck part of sewage, a liquid level sensor is arranged in the air duct filter to sense the sewage liquid level in the air duct filter, and under the condition that the sewage liquid level exceeds a second liquid level threshold value, alarm information is sent to prompt excessive sewage storage in the air duct filter, and a blow-off valve of the air duct filter is opened to discharge the sewage in the air duct filter.
As an alternative embodiment, the controlling the cleaning box cleans the return stroke of the conveyor belt under the flowing negative pressure, and further includes: when the fan outlet of the centrifugal fan connected to the suction pipe is provided with an exhaust valve, the air discharge amount of the centrifugal fan is controlled by controlling the opening degree of the exhaust valve. The centrifugal fan sucks air in the cleaning box through the suction pipe, the space between the cleaning box and the return stroke of the conveyor belt is in a negative pressure state relative to the outside of the cleaning box, so that the cleaned conveyor belt is sucked and dried, specifically, the exhaust valve can also adjust the opening based on the humidity degree of the conveyor belt, the opening of the exhaust valve can be increased under the condition that the humidity of the conveyor belt is high, the conveyor belt is dried in an acceleration way, the opening of the exhaust valve can be reduced under the condition that the humidity of the conveyor belt is low, and the negative pressure is reduced.
As an alternative embodiment, the controlling the cleaning box cleans the return stroke of the conveyor belt under the flowing negative pressure, and further includes: detecting whether the conveyor belt stops running; under the condition that the detection result is that the conveyor belt stops running, a high-pressure water pump for providing high-pressure water for the high-pressure water pipe is turned off, and the high-pressure water pipe stops flushing the return stroke of the conveyor belt; closing a centrifugal fan for sucking the space between the cleaning box and the return stroke of the conveyor belt, and stopping sucking the space; and controlling the scraping plate to stop scraping operation on the washed material on the return stroke of the conveyor belt. After the detection of the stopping of the operation of the conveyor belt, stopping water supply and suction of the centrifugal fan, reducing the pressure between the cleaning box and the return stroke of the conveyor belt to a normal value, stopping scraping operation of the scraper on the conveyor belt, and preventing the conveyor belt from being scratched by continuing the scraping operation under the condition of no water.
As an alternative embodiment, when the conveyor belt is detected to stop running, a bypass blow-off valve in the cleaning box is opened, and the sewage collected in the cleaning box and swept out from the conveyor belt loop Cheng Qing is discharged; opening a blow-down valve of the air duct filter, and discharging sewage filtered from air sucked in the cleaning box in the air duct filter; and controlling the air locking valve in the cleaning box to continuously run for a preset time so as to smoothly discharge the sewage in the cleaning box.
As an alternative embodiment, the manner of controlling the air lock valve in the cleaning tank to operate for a predetermined period of time may be various, for example: the preset time length is set based on the maximum sewage capacity in the cleaning tank, the shortage of the preset time length is prevented so as to drain sewage, and the preset time length can be set based on liquid level data returned by a liquid level sensor in the cleaning tank.
As an alternative embodiment, detecting that the conveyor belt is out of operation, controlling the cleaning tank to descend to a predetermined placement position, which may be various, for example: the position of the maintenance equipment connected to the inside equipment of the cleaning box can be the position where the inside condition of the cleaning box after cleaning can be conveniently observed.
Through the steps, the position of the cleaning box is detected, the negative pressure state of the space between the cleaning box and the return stroke of the conveyor belt is detected, the detection result is obtained, the cleaning box is controlled to clean the return stroke of the conveyor belt based on the detection result, the purpose of thoroughly cleaning the return stroke of the conveyor belt is achieved, the cleaning state of the cleaning box is automatically determined, the cleaning box is controlled to clean the return stroke of the conveyor belt more comprehensively and thoroughly, the technical effect of the working efficiency of the return stroke cleaning of the conveyor belt is improved, and the technical problem that the return stroke cleaning of the conveyor belt is not thorough in the prior art is solved.
Based on the above examples and preferred embodiments, an alternative implementation is provided.
In the related art, cleaning the conveyor belt generally cleans the conveyor belt using a cleaning apparatus, or directly cleans the conveyor belt manually. In the prior art, the cleaning equipment for cleaning the conveyor belt and manually cleaning the conveyor belt have the defect that a large amount of human resources are required to be consumed, and if the conveyor belt for conveying the chemical raw materials is cleaned manually, certain harm is caused to a human body, so that the manual cleaning method and the cleaning method can cause harm to the human body, simultaneously, the cleaning efficiency is reduced, the cleaning cost is greatly improved, and the conveyor belt can not be thoroughly cleaned.
Based on the above-mentioned problems, in this alternative embodiment, a belt return cleaning apparatus and a control system thereof are provided, and fig. 2 is a schematic diagram of an alternative belt cleaning device according to an embodiment of the present invention, and as shown in fig. 2, the belt cleaning device may implement intelligent cleaning of a belt in combination with the belt return cleaning apparatus control system. The device comprises the following contents:
201. A water supply valve; 202. a clear water filter; 203. a water pressure sensor a; 204. a high pressure water pump; 205. a cleaning box; 206. an air duct filter; 207. a blower; 208. a fan exhaust valve; 209. an air duct filter blow-down valve; 210. an air duct filter liquid level sensor; 211. a cleaning box liquid level sensor; 212. a bypass blow-down valve; 213. a locking valve; 214. a water pressure sensor b.
As shown in fig. 2, a water supply valve (201) for supplying water to the cleaning apparatus; a clean water filter (202) for filtering the water supply before cleaning the conveyor belt, and filtering impurities in the water; the water pressure sensor a (203) is arranged at the water inlet end and is used for detecting the water supply pressure; the water pressure sensor b (214) is arranged at the water outlet end and is used for detecting the water pressure after passing through the filter, and is combined with the water pressure sensor a (203), and the pressure difference of the inlet and the outlet of the clean water filter (202) is compared with the numerical value set by the system to judge whether the filter is blocked or not, so that an operator is reminded of cleaning the filter element of the filter; the high-pressure water pump (204) is used for obtaining high-pressure water; the cleaning box (205) is used for cleaning the surface of the conveyor belt, and a cleaning device is arranged in the cleaning box; an air duct filter (206) for storing sewage sucked by the negative pressure; a fan (207) for extracting air in the purge bin to a negative pressure state; the fan exhaust valve (208) can adjust the opening according to the system requirement and is used for fan exhaust; the air channel filter blow-down valve (209) can be opened according to the sewage level in the air channel filter or directly controlled by a system and is used for discharging the sewage stored in the air channel filter; the air duct filter liquid level sensor (210) is used for acquiring liquid level data of sewage in the air duct filter; a cleaning tank liquid level sensor (211) for acquiring liquid level data of sewage in the cleaning tank; a bypass drain valve (212) for assisting in discharging sewage in the cleaning tank when the air locking valve (213) is blocked; and the air locking valve (213) is used for discharging the sewage remained in the cleaning box (205) after the conveying belt is cleaned in a return stroke, so that the cleaning device is ensured to run under negative pressure all the time, and no air leakage and pressure release are caused.
The high-pressure spray boom, the spray nozzle and the scraper type sweeper are arranged in the cleaning box, meanwhile, the air locking valve and the bypass blow-down valve are arranged at the bottom of the cleaning box, meanwhile, the cleaning box can be lifted integrally relative to the conveyor belt, the cleaning box is lifted integrally during cleaning operation, the fan and the water pump are closed after stopping the operation, the bypass pipeline is opened, the air locking valve continues to operate for a specific time, and the cleaning box is lowered integrally for a specific height, so that the cleaning device is not contacted with the conveyor belt during non-operation, and the risk of accumulation and blockage of the cleaning box is avoided.
Meanwhile, a liquid level sensor is arranged in the cleaning box, data transmitted back to the system by the liquid level sensor can be acquired, and if the liquid level in the cleaning box is higher than a set height, the bypass blow-down valve is opened to timely discharge sewage in the cleaning box, so that sewage in the cleaning box is prevented from accumulating and overflowing, and risks are generated.
The bottom of the air duct filter is provided with a drain valve for discharging sewage inside the air duct filter, a liquid level sensor is arranged inside the air duct filter, the sewage liquid level inside the air duct filter can be obtained based on the liquid level sensor, if the liquid level is higher than a set height, the drain valve is opened, the sewage in the air duct filter is discharged, and the sewage in the filter is prevented from precipitating.
The fan discharge port is designed with an exhaust valve, and the opening degree can be controlled according to the system requirement, for example: the cleaning box is internally provided with the scraping blade, the scraping blade can adjust the laminating degree with the conveyor belt based on the size of negative pressure, the negative pressure is larger, the scraping blade is tighter with the laminating of the conveyor belt, and when the system judges that the material adhered on the conveyor belt needs to be scraped and laminated degree is increased, the opening degree of the exhaust valve can be adjusted to be larger, so that the requirement of cleaning the conveyor belt is met.
The water pump is driven by the variable frequency motor, the pressure of the waterway system can be set in the operating system, and the rotating speed of the water pump motor is adjusted, so that the water pressure is adjusted, the water pressure requirements of different materials are further ensured, the power consumption is saved, and the water pump is more economical.
Under normal conditions, the conveyor belt return-stroke cleaning equipment is in a power supply state, when the conveyor belt does not work, the cleaning box is in a descending state, a Programmable Logic Controller (PLC) detects the cleaning box state in real time, when the conveyor belt which needs cleaning rotates, a PLC control system receives a signal of operation, then the PLC detects whether water supply exists through a waterway pressure sensor, when all the conveyor belt is normal, a water pump, a fan and a locking valve are started, a bypass valve and an air duct filter blow-off valve are closed, specific time is reserved, and a self-cleaning pipeline in the box is opened.
In this optional embodiment, there is further provided a logic diagram of a control method of a belt cleaning device, and fig. 3 is a logic diagram of an optional control method of a belt cleaning device according to an embodiment of the present invention, as shown in fig. 3, the logic diagram shown in fig. 3 may be divided into two processes of detection and cleaning, including the following:
(1) Post-start detection
1) The conveyor belt cleaning device firstly receives a starting instruction, starts cleaning the conveyor belt, then detects the position of the cleaning box, detects whether the cleaning box is in a lowered position, namely whether the cleaning box is in an un-raised state, if the cleaning box is in the un-raised state, continues to perform the next detection, and if the cleaning box is raised or fails to be lowered to a preset position, the cleaning box is lowered to the preset position and then performs the next detection.
2) And detecting whether the conveyor belt is running or not, and circularly detecting until the conveyor belt is detected to be running, and then performing the next detection.
3) Whether normal water supply is enabled or not is detected, and since the conveyor belt needs to be flushed, the next step can be continued after the normal water supply is detected.
4) The pressure difference of the filter is detected, the blocking condition of the filter core is judged, the water pressure sensors are respectively arranged above and below the filter at the water supply end, the pressure difference data of the filter can be obtained based on the water pressure data transmitted to the system by the water pressure sensors, so that whether the filter is blocked or not is judged according to the pressure difference data, when the water pressure data of the sensor above the filter is larger than the water pressure data of the sensor below the filter, the blocking condition of the filter can be known, and the reminding of cleaning the filter core of the filter is further sent.
5) The cleaning box is lifted to a proper cleaning position of the conveyor belt, and is locked, so that the situation that the cleaning box is shifted is prevented.
(2) Cleaning the conveyor belt
1) The method comprises the steps of opening a water pump, a fan and a locking air valve, closing a bypass valve (bypass blow-down valve) and an air channel filter blow-down valve, opening a self-cleaning pipeline in a box at specific intervals, firstly opening the water pump to obtain water supply, opening the fan to extract air in the cleaning box to a negative pressure state, closing the bypass blow-down valve of the cleaning box and the blow-down valve of an air channel filter, preventing air leakage, setting interval time, opening the self-cleaning pipeline of the cleaning box, and cleaning the interior of the cleaning box while cleaning a conveying belt.
2) And detecting full liquid level alarm of the cleaning box, if the cleaning box is full of liquid level, sending out a prompt of blockage of the rotary sealing valve, and opening a bypass blow-off valve of the cleaning box to timely discharge sewage.
3) And detecting the full liquid level of the air channel filter, alarming, and if the air channel filter is full of the liquid level, sending out a prompt of water inlet of the air channel filter and opening a drain valve of the air channel filter to timely discharge sewage.
4) Detecting whether the belt stops running, if the belt (conveyor belt) stops running, opening the air channel filter blow-off valve and the cleaning box bypass blow-off valve, discharging residual sewage inside, closing the fan and the water pump, stopping extracting air in the cleaning box and stopping water supply, and closing the rotary sealing valve after a certain time delay, so as to ensure that the air circulation of the cleaning box can be separated from negative pressure and return to a normal state.
5) The cleaning box is positioned in a descending position, and the cleaning box is descended to an initial position.
In the embodiment of the invention, the detection result is obtained by detecting the position of the cleaning box and detecting the negative pressure state of the space between the cleaning box and the return stroke of the conveyor belt, and the cleaning box is controlled to clean the return stroke of the conveyor belt based on the detection result, so that the purpose of thoroughly cleaning the return stroke of the conveyor belt is achieved, the cleaning state of the cleaning box is automatically determined, the cleaning box is controlled to clean the return stroke of the conveyor belt more comprehensively and thoroughly, the technical effect of improving the working efficiency of the return stroke cleaning of the conveyor belt is further achieved, and the technical problem that the return stroke cleaning of the conveyor belt is not thorough in the prior art is solved.
In an embodiment of the present invention, there is further provided a control device for cleaning a belt loop, and fig. 4 is a schematic diagram of the control device for cleaning a belt loop, as shown in fig. 4, where the device includes: the first detection module 40, the second detection module 42, and the control module 44 are described below.
A first detecting module 40, configured to detect whether the cleaning tank rises to a predetermined cleaning position, so as to obtain a first detection result; the second detection module 42 is connected to the first detection module 40, and is configured to detect whether a space between the cleaning tank and the conveyor belt forms a flowing negative pressure with respect to the outside of the cleaning tank, to obtain a second detection result when the first detection result is yes; and the control module 44 is connected to the second detection module 42 and is used for controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure when the second detection result is yes.
In an embodiment of the present invention, a computer readable storage medium is further provided, where the computer readable storage medium includes a stored program, and when the program runs, the control method for controlling the apparatus where the computer readable storage medium is located to execute the foregoing control method for cleaning the backhaul of the conveyor belt.
In an embodiment of the present invention, there is also provided a computer apparatus including: a memory and a processor, the memory storing a computer program; and a processor for executing a computer program stored in the memory, the computer program when run causing the processor to execute the control method of any one of the above conveyor belt backhaul cleaning.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (15)
1. A method for controlling belt return path cleaning, comprising:
detecting whether the cleaning box rises to a preset cleaning position or not to obtain a first detection result;
if the first detection result is yes, detecting whether a space between the cleaning box and the conveyor belt loop forms flowing negative pressure relative to the outside of the cleaning box, and obtaining a second detection result;
and under the condition that the second detection result is yes, controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure.
2. The method of claim 1, wherein in the event of a positive result of the first detection, detecting whether a negative flow pressure is established in the space between the purge bin and the belt loop relative to the exterior of the purge bin, results in a second detection, comprising:
if the first detection result is yes, detecting whether the conveyor belt is in an operating state or not, and detecting whether a high-pressure water pump for providing high-pressure water for a high-pressure water pipe in the cleaning box is provided with water supply or not;
And detecting whether a space between the cleaning box and the return stroke of the conveyor belt forms flowing negative pressure relative to the outside of the cleaning box or not under the condition that the detection result is that the conveyor belt is in an operating state and the high-pressure water pump supplies water, so as to obtain a second detection result.
3. The method according to claim 2, wherein in the case where the detection result includes a state where the high-pressure water pump has water supply, the method further comprises:
detecting whether a filter element of a clear water filter is in a blocked state, wherein the clear water filter is used for filtering water before being conveyed to the high-pressure water pump.
4. A method according to claim 3, wherein detecting whether the cartridge of the clean water filter is in a plugged condition comprises:
acquiring a first water pressure before passing through the clear water filter and a second water pressure after passing through the clear water filter;
acquiring a water pressure difference between the first water pressure and the second water pressure;
based on the water pressure differential, it is determined whether a cartridge of the clean water filter is in a blocked state.
5. The method of claim 1, wherein said controlling the purge bin to purge the conveyor belt return under the negative flow pressure comprises:
Starting a high-pressure water pipe connected in the cleaning box to flush the return stroke of the conveyor belt;
controlling a scraper in the cleaning box to scrape off materials on the return stroke of the washed conveyor belt;
and opening a suction pipe connected in the cleaning box to suck the space between the cleaning box and the conveyor belt return, and returning the conveyor belt Cheng Fenggan after the scraping operation.
6. The method of claim 5, further comprising, after said flushing the conveyor belt return stroke by opening a high pressure water line connected to the inside of the purge bin:
and driving the high-pressure water pump connected to the high-pressure water pipe by adopting a variable frequency motor, and adjusting the water pressure in the high-pressure water pipe by adjusting the rotating speed of the high-pressure water pump.
7. The method of claim 5, wherein said controlling said purge bin to purge said conveyor belt return under said negative flow pressure further comprises:
opening a locking valve in the cleaning box, and discharging the collected sewage in the cleaning box through a main sewage outlet;
closing a bypass blow-down valve in the cleaning box, wherein the bypass blow-down valve is used for discharging sewage which is collected in the cleaning box and swept out by the conveyor belt Cheng Qing when being opened;
And closing the air channel filter blow-down valve, wherein the air channel filter blow-down valve is used for discharging sewage in the air channel filter when being opened, and the air channel filter is used for filtering out the sewage from the air sucked in the cleaning box.
8. The method of claim 7, further comprising, after said controlling said purge bin to purge said conveyor belt return under said negative flow pressure:
detecting whether the liquid level sensed by a cleaning box liquid level sensor in the cleaning box exceeds a first liquid level threshold value, and sending out first alarm information under the condition that the liquid level sensed by the cleaning box liquid level sensor in the cleaning box exceeds the first liquid level threshold value as a detection result, wherein the first alarm information is used for prompting that the bypass sewage discharge valve in the cleaning box needs to be opened so as to discharge sewage in the cleaning box;
detecting whether the liquid level sensed by the liquid level sensor of the air duct filter in the air duct filter exceeds a second liquid level threshold, and sending out second alarm information under the condition that the liquid level sensed by the liquid level sensor of the air duct filter in the air duct filter exceeds the second liquid level threshold as a detection result, wherein the second alarm information is used for prompting that an air duct filter blow-down valve on the air duct filter needs to be opened so as to discharge sewage in the air duct filter.
9. The method of claim 5, wherein said controlling said purge bin to purge said conveyor belt return under said negative flow pressure further comprises:
when an exhaust valve is provided at a fan outlet of a centrifugal fan connected to the suction pipe, the exhaust air quantity of the centrifugal fan is controlled by controlling the opening degree of the exhaust valve.
10. The method of claim 5, further comprising, after said controlling said purge bin to purge said conveyor belt return under said negative flow pressure:
detecting whether the conveyor belt stops running;
when the detection result shows that the conveyor belt stops running, a high-pressure water pump for providing high-pressure water for the high-pressure water pipe is turned off, and the high-pressure water pipe stops flushing the return stroke of the conveyor belt; closing a centrifugal fan for sucking the space between the cleaning box and the return stroke of the conveyor belt, and stopping sucking the space; and controlling the scraping plate to stop scraping operation on the washed material on the return stroke of the conveyor belt.
11. The method of claim 10, wherein in the event that the detection result is a shutdown of the conveyor belt, the method further comprises:
Opening a bypass blow-down valve in the cleaning box to discharge the sewage collected in the cleaning box and swept out from the conveyor belt loop Cheng Qing;
opening a blow-down valve of the air duct filter, and discharging sewage filtered from the air sucked in the cleaning box in the air duct filter;
and controlling the air locking valve in the cleaning box to continuously run for a preset time so as to smoothly discharge the sewage in the cleaning box.
12. The method of claim 10, wherein in the event that the detection result is a shutdown of the conveyor belt, the method further comprises:
and controlling the cleaning box to descend to a preset placement position.
13. A control device for belt return path cleaning, comprising:
the first detection module is used for detecting whether the cleaning box rises to a preset cleaning position or not to obtain a first detection result;
the second detection module is used for detecting whether a space between the cleaning box and the conveyor belt loop forms flowing negative pressure relative to the outside of the cleaning box or not under the condition that the first detection result is yes, so as to obtain a second detection result;
and the control module is used for controlling the cleaning box to clean the return stroke of the conveyor belt under the flowing negative pressure under the condition that the second detection result is yes.
14. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to execute the control method of the conveyor belt backhaul cleaning of any one of claims 1 to 12.
15. A computer device, comprising: a memory and a processor, wherein the memory is configured to store,
the memory stores a computer program;
the processor for executing a computer program stored in the memory, which when run causes the processor to perform the control method of conveyor belt backhaul cleaning of any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310602589.1A CN116513757A (en) | 2023-05-24 | 2023-05-24 | Control method and device for return cleaning of conveyor belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310602589.1A CN116513757A (en) | 2023-05-24 | 2023-05-24 | Control method and device for return cleaning of conveyor belt |
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| CN202310602589.1A Pending CN116513757A (en) | 2023-05-24 | 2023-05-24 | Control method and device for return cleaning of conveyor belt |
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| CN (1) | CN116513757A (en) |
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