CN118499054A - Mine dust removing device and filter bag cleaning control method - Google Patents
Mine dust removing device and filter bag cleaning control method Download PDFInfo
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- CN118499054A CN118499054A CN202410717126.4A CN202410717126A CN118499054A CN 118499054 A CN118499054 A CN 118499054A CN 202410717126 A CN202410717126 A CN 202410717126A CN 118499054 A CN118499054 A CN 118499054A
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- dust
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- air
- wind speed
- dust collection
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- 239000000428 dust Substances 0.000 title claims abstract description 183
- 238000004140 cleaning Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 230000009194 climbing Effects 0.000 claims description 19
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 22
- 238000007664 blowing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of mining equipment, and provides a mine dust collector, which comprises a frame, a filtering unit and a cleaning unit, wherein the filtering unit comprises a filter bag, the cleaning unit comprises an action assembly for driving the filter bag to turn upwards, a gas supply assembly for spraying compressed air from top to bottom to the filter bag and a dust collection assembly arranged at the bottom of the filter bag, and the dust collection assembly comprises a sliding rod vertically fixed in a dust collection cavity, a dust collection channel arranged in the sliding rod and a dust collection fan arranged in the dust collection channel; the sliding rod passes through the mounting hole, an air inlet and an air outlet which are communicated with the dust collection channel are formed in the sliding rod, and the air outlet is formed in the bottom of the sliding rod. The invention also discloses a filter bag cleaning control method, which can collect dust blown off from the filter bag in time, avoid the dust from being re-accumulated on the filter bag and reduce the cleaning frequency of the filter bag.
Description
Technical Field
The invention relates to the technical field of mining equipment, in particular to a mine dust removing device and a filter bag cleaning control method.
Background
In the mining process, a large amount of dust is generated in the processes of processing, crushing and the like, if the dust is directly discharged into the air, serious air pollution is caused, and potential harm is caused to the surrounding environment and human bodies, so that the dust cannot be directly discharged to the atmosphere, dust removal treatment is required, a cloth bag dust remover is generally arranged at an outlet of an ore crusher, and the dust generated by ore crushing is filtered out, so that the air pollution is prevented.
CN113982673B discloses a dust removing system for surface mine exploitation, which comprises a base, base fixedly connected with backup pad, backup pad fixedly connected with is hollow pipeline, a plurality of flow holes have been seted up to the pipeline, the hollow tank has been seted up to the backup pad inside, pipeline inner chamber and hollow tank intercommunication setting, be provided with the collection mechanism that is used for collecting the dust in the hollow tank.
CN213790703U discloses a mine circulation dust collector, including major structure, air inlet unit, first dust collector, second dust collector and filter equipment, major structure includes dust removal case and safety cover, the dust removal case surface is equipped with first through-hole, safety cover week side is connected with first through-hole, air inlet unit includes motor and air inlet grid, the motor internal surface is connected with the safety cover internal surface, air inlet grid surface and dust removal case internal surface welding, first dust collector includes fixed block and metal filter screen.
Because ore breakage can produce a large amount of dust, the dust accumulation rate on the filter cloth is fast in current mine dust collector, need frequently to get to clear up in order to guarantee the filter effect to the filter cloth, at present will pile up the dust on the filter cloth and fall down to clear up the filter cloth through the mode of blowback air current, but after the clearance of blowing backward, the dust that drops from the filter cloth still can fly upward in dust collector and pile up again on the filter cloth along with the progress of filtration work, not only increased the clearance frequency of filter cloth, and reduced the filter effect.
Disclosure of Invention
In the prior art, a large amount of dust can be produced when the ore is broken, dust accumulation speed on the filter cloth is fast in the existing mine dust collector, need frequently to clear up the filter cloth in order to guarantee the filter effect, at present, the dust that will pile up on the filter cloth falls down to clear up the filter cloth through the mode of blowback air current, but after the clearance of blowing backward, the dust that drops from the filter cloth still can fly upward in dust collector and pile up again on the filter cloth along with the progress of filtration work, not only increased the clearance frequency of filter cloth, and reduced the filter effect.
In view of this, the present invention aims to propose a mine dust removal device, in which the mine dust removal device includes:
the dust removing device comprises a frame, wherein a dust removing cavity is arranged in the frame, and an air inlet pipe and an air outlet pipe which are communicated with the dust removing cavity are arranged on the frame;
The filtering unit is arranged in the dust removing cavity, separates the dust removing cavity into a first cavity and a second cavity, the first cavity is communicated with the air inlet pipe, and the second cavity is communicated with the air outlet pipe;
the cleaning unit is arranged in the dust removing cavity and is positioned at the upper end of the filtering unit;
The filter unit comprises a mounting plate horizontally fixed in the dust removing cavity, mounting holes uniformly formed in the mounting plate and filter bags arranged in the mounting holes;
The cleaning unit comprises an action assembly for driving the filter bag to turn upwards, an air supply assembly for spraying compressed air to the filter bag from top to bottom and a dust collection assembly arranged at the bottom of the filter bag, and the air supply assembly is positioned at the upper end of the filter bag;
The dust collection assembly comprises a sliding rod vertically fixed in the dust collection cavity, a dust collection channel arranged in the sliding rod and a dust collection fan arranged in the dust collection channel; the sliding rod penetrates through the mounting hole, an air inlet and an air outlet which are communicated with the dust collecting channel are formed in the sliding rod, the air inlet is located between the air supply assembly and the mounting plate, and the air outlet is formed in the bottom of the sliding rod.
Further, the action assembly comprises a lifting block and a climbing robot, the lifting block is fixedly connected with the bottom of the filter bag, the lifting block is sleeved on the sliding rod and is in sliding connection with the sliding rod, the climbing robot is arranged on the sliding rod and is located at the bottom of the lifting block, and the climbing robot is fixedly connected with the bottom of the lifting block.
Further, the air supply assembly comprises a compressed air supply pipe, an annular branch pipe and an air nozzle, wherein the compressed air supply pipe is positioned on the mounting plate and communicated with the air compressor, the annular branch pipe is arranged around the sliding rod and communicated with the compressed air supply pipe, and the air nozzle is mounted at the bottom of the annular branch pipe.
Further, a dust hopper is fixed at the bottom of the frame and is communicated with the first cavity, and an air pump communicated with a discharge hole of the dust hopper is arranged at the bottom of the dust hopper.
Further, the climbing robot comprises an annular shell capable of opening and closing, rollers in contact with the sliding rods and a driving motor arranged in the annular shell and used for controlling the rollers to rotate.
Further, a maintenance frame is fixed outside the frame.
Further, a plurality of vertically arranged partition plates are fixed in the second cavity, the partition plates are mutually matched with each other to form independent air outlet channels at the upper ends of the mounting holes, the air outlet channels are communicated with the mounting holes, and an air speed detector is arranged in the air outlet channels.
Further, a position sensor for detecting the position of the lifting block is arranged in the air outlet channel.
The invention also discloses a filter bag cleaning control method for the mine dust collector, which comprises the following steps:
Step S1: the total control module receives the wind speed signal in the wind outlet channel in real time, sets a wind speed threshold value, and compares the received wind speed signal value with the wind speed threshold value;
step S2: when the wind speed signal value in the wind outlet channel is detected to be smaller than the wind speed threshold value, the filter bag in the wind outlet channel enters a cleaning state, and the total control module is switched from receiving the wind speed signal to receiving the position signal;
step S3: the filter bag is controlled to turn upwards, the position sensor sends out a position signal, the total control module starts the air supply assembly and the dust collection assembly to clean the filter bag after receiving the position signal, the air supply assembly and the dust collection assembly are set to work synchronously, and the starting time of the air supply assembly and the dust collection assembly is 0.1-0.3 seconds;
step S4: the air supply assembly and the dust collection assembly are stopped after being started, meanwhile, the filter bag is controlled to descend and reset, and the total control module is switched from the receiving position signal to the receiving wind speed signal again.
Further, the filter bag cleaning control method further comprises a complete machine cleaning method, and the complete machine cleaning method comprises the following steps:
D1: the total control module receives wind speed signals in all the wind outlet channels, compares the received wind speed signal values with a wind speed threshold value, and stops the air inlet of the air inlet pipe when the wind speed signal values in more than three dust collecting channels are monitored to be smaller than the wind speed threshold value;
d2: and controlling all filter bags to turn upwards, starting the air supply assembly to blow and clean the filter bags, and starting the air pump to perform air extraction.
According to the mine dust collector disclosed by the invention, through the arrangement of the action assembly and the dust collecting assembly, when the filter bag is cleaned, dust on the filter bag is blown off, blown dust is sucked and collected and directly conveyed to the bottom of the dust collecting hopper, the blown dust is treated in time, the blown dust is prevented from flying, the phenomenon that the blown dust is re-accumulated on the filter bag is avoided, and the cleaning frequency of the filter bag can be greatly reduced.
Through all setting up independent air-out passageway in each filter bag top to set up wind speed detector in the air-out passageway, can monitor the wind speed in each air-out passageway, and according to the accumulational condition of dust on each filter bag of judgement of wind speed, thereby can carry out solitary clearance work to the filter bag that blocks up more serious, it is convenient to use, independent clearance can satisfy and clear up work to the filter bag under the circumstances that does not stop the filtration work, improves work efficiency.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate and explain the invention and are not to be construed as limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an embodiment of the present invention;
FIG. 3 is a schematic view showing a state of the filter bag dust collection in one embodiment of the present invention;
FIG. 4 is a schematic diagram showing a state of cleaning a filter bag according to an embodiment of the present invention;
FIG. 5 is a schematic view of a climbing robot according to an embodiment of the present invention;
FIG. 6 is a schematic view illustrating a structure of a dust collecting fan according to an embodiment of the present invention;
FIG. 7 is a flow chart of a method for controlling cleaning of a filter bag according to an embodiment of the present invention.
Reference numerals illustrate:
1. A frame; 101. an air inlet pipe; 102. an air outlet pipe; 103. a dust hopper; 104. an air pump; 105. a maintenance frame; 110. a first cavity; 120. a second cavity; 2. a filtering unit; 21. a mounting hole; 22. a filter bag; 3. a dust collection assembly; 31. a slide bar; 311. an air inlet; 312. an air outlet; 32. a dust collection passage; 33. a dust collection fan; 4. an action assembly; 41. a lifting block; 42. climbing the robot; 5. a gas supply assembly; 51. a compressed air supply pipe; 52. an annular branch pipe; 53. an air nozzle.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
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 in order to describe the embodiments of the invention 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; "fixed" or "fixedly attached" generally refers to a common mechanical attachment means, such as a threaded connection, welding or bonding, or the like.
In the prior art, a large amount of dust can be produced when the ore is broken, dust accumulation speed on the filter cloth is fast in the existing mine dust collector, need frequently to clear up the filter cloth in order to guarantee the filter effect, at present, the dust that will pile up on the filter cloth falls down to clear up the filter cloth through the mode of blowback air current, but after the clearance of blowing backward, the dust that drops from the filter cloth still can fly upward in dust collector and pile up again on the filter cloth along with the progress of filtration work, not only increased the clearance frequency of filter cloth, and reduced the filter effect.
The present invention provides a mine dust removing apparatus, as shown in fig. 1 and 2, in this embodiment, the mine dust removing apparatus includes:
The dust removal device comprises a frame 1, wherein a dust removal cavity is arranged in the frame 1, and an air inlet pipe 101 and an air outlet pipe 102 which are communicated with the dust removal cavity are arranged on the frame 1;
the filtering unit 2 is arranged in the dust removing cavity, the filtering unit 2 divides the dust removing cavity into a first cavity 110 and a second cavity 120, the first cavity 110 is communicated with the air inlet pipe 101, and the second cavity 120 is communicated with the air outlet pipe 102;
the cleaning unit is arranged in the dust removing cavity and is positioned at the upper end of the filtering unit 2;
The filtering unit 2 comprises a mounting plate horizontally fixed in the dust removing cavity, mounting holes 21 uniformly formed in the mounting plate and a filter bag 22 arranged in the mounting holes 21;
The cleaning unit comprises an action assembly 4 for driving the filter bag 22 to turn upwards, an air supply assembly 5 for spraying compressed air to the filter bag 22 from top to bottom, and a dust collection assembly 3 arranged at the bottom of the filter bag 22, wherein the air supply assembly 5 is positioned at the upper end of the filter bag 22;
The dust collection assembly 3 comprises a slide bar 31 vertically fixed in the dust collection cavity, a dust collection channel 32 arranged in the slide bar 31 and a dust collection fan 33 arranged in the dust collection channel 32; the sliding rod 31 passes through the mounting hole 21, an air inlet 311 and an air outlet 312 which are communicated with the dust collecting channel 32 are formed in the sliding rod 31, the air inlet 311 is positioned between the air supply assembly 5 and the mounting plate, and the air outlet 312 is formed in the bottom of the sliding rod 31.
As shown in fig. 3-6, in this embodiment, the motion assembly 4 includes a lifting block 41 and a climbing robot 42, the lifting block 41 is fixedly connected with the bottom of the filter bag 22, the lifting block 41 is sleeved on the sliding rod 31 and is slidably connected with the sliding rod 31, the climbing robot 42 is disposed on the sliding rod 31 and is located at the bottom of the lifting block 41, and the climbing robot 42 is fixedly connected with the bottom of the lifting block 41.
Through action subassembly and dust collecting assembly's setting, when clear up the filter bag, blow off the dust on the filter bag to collect the dust of blowing off and directly carry to the dust hopper bottom, in time handle the dust of blowing off, avoid the dust of blowing off to fly upward, avoided the phenomenon that the dust of blowing off was piled up again on the filter bag, can reduce the frequency of clearing up the filter bag by a wide margin.
The pressure of the gas sprayed out of the gas spraying head is far greater than the air inlet pressure of the air inlet pipe, so that the cleaning of a single filter bag does not need to be stopped when the single filter bag is cleaned; the upper and lower both ends of mounting hole are provided with clean brush hair, and clean brush hair is fixed on the mounting panel, and clean brush hair can clear up the slide bar when the lifter piece reciprocates, guarantees the stability that the slide bar removed.
In this embodiment, the air supply assembly 5 includes a compressed air supply pipe 51, an annular branch pipe 52 and an air nozzle 53, the compressed air supply pipe 51 is located in the mounting plate and communicates with the air compressor, the annular branch pipe 52 is disposed around the slide bar 31 and communicates with the compressed air supply pipe 51, and the air nozzle 53 is mounted at the bottom of the annular branch pipe 52.
The setting of air feed subassembly is used for providing the required gas during the clearance, in order to guarantee the swift of air feed subassembly blowing, sets up the solenoid valve on the annular branch pipe, keeps air compressor's operation, only controls opening and close of solenoid valve and supplies air.
In this embodiment, a dust hopper 103 is fixed at the bottom of the frame 1, the dust hopper 103 is communicated with the first cavity 110, and an air pump 104 communicated with a discharge port of the dust hopper 103 is installed at the bottom of the dust hopper 103.
The dust hopper is used for storing scattered dust, and when dust impurities accumulated in the dust hopper are required to be discharged and cleaned, the air pump is started to perform air suction.
In this embodiment, the climbing robot 42 includes an openable and closable annular housing, a roller in contact with the slide bar 31, and a driving motor installed in the annular housing to control rotation of the roller; in the present application, since the climbing robot is a mature prior art, detailed description thereof is omitted.
In this embodiment, a maintenance frame 105 is fixed to the outside of the frame 1, and a position sensor for detecting the position of the lifting block 41 is disposed in the air outlet channel.
The maintenance frame is arranged, so that workers can climb conveniently, and maintenance work can be carried out on the machine body conveniently.
In this embodiment, a plurality of vertically arranged partitions are fixed in the second cavity 120, and the partitions are mutually matched to form independent air outlet channels at the upper ends of the mounting holes 21, the air outlet channels are communicated with the mounting holes 21, and an air speed detector is installed in the air outlet channels.
Through the setting of baffle, all set up independent air-out passageway in each filter bag top to set up wind speed detector in the air-out passageway, can monitor the wind speed in each air-out passageway, and the pile up condition of dust on each filter bag of judgement according to the wind speed, thereby can carry out solitary clearance work to the filter bag that blocks up more serious, it is convenient to use, independent clearance can satisfy and clear up work to the filter bag under the circumstances that does not stop filter work, improves work efficiency.
When the dust removing device works, the external gas containing dust is input into the first cavity from the air inlet pipe through the external pump body, the gas in the first cavity passes through each filter bag and then upwards passes through the air outlet channel to enter the second cavity, and the filtered gas is discharged from the air outlet pipe through the second cavity;
In the filtering process, a large amount of dust is accumulated on the filter bag, when the wind speed detector detects that the wind speed in a certain wind outlet channel is reduced to a threshold value, a climbing robot on a sliding rod in the wind outlet channel is started, the climbing robot drives a lifting block to move upwards until the position sensor detects that the lifting block is lifted to the upper end of an air inlet of the sliding rod, the filter bag is turned upwards to be completed at the moment, the filter bag is switched to be in a state shown in fig. 4 from the state shown in fig. 3, meanwhile, the continuous input of gas is stopped, a dust collecting fan and an air supply assembly are started, the air supply assembly is started to drive compressed gas to be sprayed out from an air nozzle and blow the filter bag, dust on the filter bag is blown down, at the moment, the dust collecting fan drives the air inlet of the sliding rod to enter the dust collecting channel from the air inlet and is discharged to the bottom of the dust collecting hopper from the air outlet, the lifting block is driven to descend again after cleaning is completed, the electric filter bag returns to the initial state, and dust collection work is restarted.
The cleaning mode is a single filter bag cleaning mode, and air inlet operation of the air inlet pipe is not required to be stopped; when all filter bags are required to be cleaned synchronously, the air inlet pipe is required to be stopped from air inlet.
As shown in fig. 7, the present invention further provides a filter bag cleaning control method, which is applicable to the mine dust removal device, and in this embodiment, the filter bag cleaning control method includes:
s1: the total control module receives the wind speed signal in the wind outlet channel in real time, sets a wind speed threshold value, and compares the received wind speed signal value with the wind speed threshold value;
S2: when the wind speed signal in the air outlet channel is detected to be vertically smaller than the wind speed threshold value, the wind speed in the air outlet channel is reduced at the moment, so that more dust is accumulated on the filter bags in the air outlet channel, the filter bags are blocked in a large area, and in order to dredge and clean the filter bags in the air outlet channel, the filter bags in the air outlet channel enter a cleaning state, and the total control module is switched from receiving the wind speed signal to receiving the position signal;
S3: under a cleaning state, the climbing robot drives the lifting block to move upwards to drive the filter bag to turn upwards, at the moment, the lifting block ascends to the upper end of the position sensor, the position sensor sends a position signal, the main control module controls the starting of the air supply assembly and the dust collection assembly after receiving the position signal, the air supply assembly blows air to the filter bag, the dust collection assembly collects dust falling from the filter bag, the air supply assembly and the dust collection assembly are set to work synchronously, the starting time of the air supply assembly and the dust collection assembly is 0.2 seconds, and the stopping time of the lifting block after ascending is 0.5 seconds;
s4: and when the cleaning state is exited, the climbing robot drives the lifting block to descend and reset, the filter bag is driven by the lifting block to reset, the air supply assembly and the dust collection assembly are stopped, and the total control module is switched from receiving the position signal to receiving the wind speed signal again.
In this embodiment, the filter bag cleaning control method further includes a complete machine cleaning method, where the complete machine cleaning method is used to clean all filter bags at the same time, and the complete machine cleaning method includes:
D1: the total control module receives the wind speed signals in all the wind outlet channels, compares the received wind speed signal values with a wind speed threshold value, and stops the air inlet of the air inlet pipe when the wind speed signal values in the three dust collecting channels are monitored to be larger than the wind speed threshold value;
d2: all filter bags are controlled to turn upwards, the air supply assembly is started to blow and clean the filter bags, the air pump is started to exhaust air, and dust blown off from all filter bags is directly driven to be output through the air pump.
The invention is provided with a total control module which is used for receiving and sending various signals and processing the signals, and the total control module is also provided with an execution unit which is used for controlling the start and stop work of all equipment parts.
When the wind speeds in the three dust collecting channels in the same time period are smaller than the wind speed threshold value, the dust amount in the time period is large, and the dust accumulation amount on all filter bags is not small, so that the filter bags are required to be cleaned comprehensively.
According to the invention, through the arrangement of the action assembly and the dust collecting assembly, when the filter bag is cleaned, dust on the filter bag is blown off, blown dust is sucked and collected and directly conveyed to the bottom of the dust collecting hopper, and the blown dust is treated in time, so that the blown dust is prevented from flying, the phenomenon that the blown dust is re-accumulated on the filter bag is avoided, and the frequency of cleaning the filter bag can be greatly reduced.
Compared with the prior art, the filter bag is turned upwards and then is cleaned by blowing, so that blown dust can be prevented from diffusing and flying everywhere, and the dust is intensively blown to the middle part, thereby being convenient for collection and treatment.
Through all setting up independent air-out passageway in each filter bag top to set up wind speed detector in the air-out passageway, can monitor the wind speed in each air-out passageway, and according to the accumulational condition of dust on each filter bag of judgement of wind speed, thereby can carry out solitary clearance work to the filter bag that blocks up more serious, it is convenient to use, independent clearance can satisfy and clear up work to the filter bag under the circumstances that does not stop the filtration work, improves work efficiency.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A mine dust collector, characterized by comprising:
the dust removal device comprises a frame (1), wherein a dust removal cavity is arranged in the frame (1), and an air inlet pipe (101) and an air outlet pipe (102) which are communicated with the dust removal cavity are arranged on the frame (1);
The filtering unit (2) is arranged in the dust removing cavity, the filtering unit (2) separates the dust removing cavity and divides the dust removing cavity into a first cavity (110) and a second cavity (120), the first cavity (110) is communicated with the air inlet pipe (101), and the second cavity (120) is communicated with the air outlet pipe (102);
The cleaning unit is arranged in the dust removing cavity and is positioned at the upper end of the filtering unit (2);
The filtering unit (2) comprises a mounting plate horizontally fixed in the dust removing cavity, mounting holes (21) uniformly formed in the mounting plate and a filter bag (22) arranged in the mounting holes (21);
The cleaning unit comprises an action assembly (4) for driving the filter bag (22) to turn upwards, an air supply assembly (5) for spraying compressed air to the filter bag (22) from top to bottom, and a dust collection assembly (3) arranged at the bottom of the filter bag (22), wherein the air supply assembly (5) is positioned at the upper end of the filter bag (22);
The dust collection assembly (3) comprises a sliding rod (31) vertically fixed in the dust collection cavity, a dust collection channel (32) arranged in the sliding rod (31) and a dust collection fan (33) arranged in the dust collection channel (32); the sliding rod (31) passes through the mounting hole (21), an air inlet (311) and an air outlet (312) which are communicated with the dust collection channel (32) are formed in the sliding rod (31), the air inlet (311) is positioned between the air supply assembly (5) and the mounting plate, and the air outlet (312) is formed in the bottom of the sliding rod (31).
2. The mine dust collector of claim 1, wherein the action assembly (4) comprises a lifting block (41) and a climbing robot (42), the lifting block (41) is fixedly connected with the bottom of the filter bag (22), the lifting block (41) is sleeved on the sliding rod (31) and is slidably connected with the sliding rod (31), the climbing robot (42) is arranged on the sliding rod (31) and is located at the bottom of the lifting block (41), and the climbing robot (42) is fixedly connected with the bottom of the lifting block (41).
3. The mine dust collector of claim 1, wherein the air supply assembly (5) includes a compressed air supply pipe (51), an annular branch pipe (52) and an air nozzle (53), the compressed air supply pipe (51) being located in the mounting plate and communicating with an air compressor, the annular branch pipe (52) being disposed around the slide bar (31) and communicating with the compressed air supply pipe (51), the air nozzle (53) being mounted at the bottom of the annular branch pipe (52).
4. The mine dust removal device according to claim 1, wherein a dust hopper (103) is fixed at the bottom of the frame (1), the dust hopper (103) is communicated with the first cavity (110), and an air pump (104) communicated with a discharge port of the dust hopper (103) is installed at the bottom of the dust hopper (103).
5. The mine dust removal device according to claim 2, wherein the climbing robot (42) comprises an openable and closable annular housing, rollers in contact with the slide bars (31), and a driving motor installed in the annular housing to control rotation of the rollers.
6. The mine dust removal device according to any one of claims 2-4, wherein a maintenance rack (105) is fixed outside the frame (1).
7. The mine dust removal device according to any one of claims 2-4, wherein a plurality of vertically arranged partition plates are fixed in the second cavity (120), the partition plates are mutually matched to form independent air outlet channels at the upper ends of the mounting holes (21), the air outlet channels are communicated with the mounting holes (21), and an air speed detector is arranged in each air outlet channel.
8. The mine dust collector of claim 7, wherein a position sensor for detecting the position of the lifting block (41) is provided in the air outlet passage.
9. A filter bag cleaning control method for a mine dust collector according to any one of claims 1 to 8, characterized by comprising:
Step S1: the total control module receives the wind speed signal in the wind outlet channel in real time, sets a wind speed threshold value, and compares the received wind speed signal value with the wind speed threshold value;
step S2: when the wind speed signal value in the wind outlet channel is detected to be smaller than the wind speed threshold value, the filter bag in the wind outlet channel enters a cleaning state, and the total control module is switched from receiving the wind speed signal to receiving the position signal;
step S3: the filter bag is controlled to turn upwards, the position sensor sends out a position signal, the total control module starts the air supply assembly and the dust collection assembly to clean the filter bag after receiving the position signal, the air supply assembly and the dust collection assembly are set to work synchronously, and the starting time of the air supply assembly and the dust collection assembly is 0.1-0.3 seconds;
step S4: the air supply assembly and the dust collection assembly are stopped after being started, meanwhile, the filter bag is controlled to descend and reset, and the total control module is switched from the receiving position signal to the receiving wind speed signal again.
10. The filter bag cleaning control method of claim 9, further comprising a complete machine cleaning method comprising:
D1: the total control module receives wind speed signals in all the wind outlet channels, compares the received wind speed signal values with a wind speed threshold value, and stops the air inlet of the air inlet pipe when the wind speed signal values in more than three dust collecting channels are monitored to be smaller than the wind speed threshold value;
d2: and controlling all filter bags to turn upwards, starting the air supply assembly to blow and clean the filter bags, and starting the air pump to perform air extraction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119873445A (en) * | 2025-02-28 | 2025-04-25 | 泰州月宝米业有限公司 | Storage conveying equipment for grain processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119873445A (en) * | 2025-02-28 | 2025-04-25 | 泰州月宝米业有限公司 | Storage conveying equipment for grain processing |
| CN119873445B (en) * | 2025-02-28 | 2025-08-01 | 泰州月宝米业有限公司 | Storage conveying equipment for grain processing |
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