CN111558260A - Silk making production system and dust removal control method thereof - Google Patents
Silk making production system and dust removal control method thereof Download PDFInfo
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- CN111558260A CN111558260A CN202010442425.3A CN202010442425A CN111558260A CN 111558260 A CN111558260 A CN 111558260A CN 202010442425 A CN202010442425 A CN 202010442425A CN 111558260 A CN111558260 A CN 111558260A
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- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
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- 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
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- 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
- B01D46/0091—Including arrangements for environmental or personal protection
- B01D46/0093—Including arrangements for environmental or personal protection against fire or explosion
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- 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
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- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4272—Special valve constructions adapted to filters or filter elements
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Abstract
The present disclosure relates to a silk making production system and a dust removal control method, wherein the silk making production system includes: a filament manufacturing workshop (1); a first air duct (3) and a second air duct (4); the dust remover (5) is provided with an air inlet (A) and an air outlet (B), and the air inlet (A) is communicated with the silk making workshop (1) through a first air pipe (3); an air inlet of the fan (2) is communicated with an air outlet (B) of the dust remover (5) through a second air pipe (4) and is used for providing negative pressure for the work of the dust remover (5); the first air pipe (3) is provided with a one-way explosion-proof valve (8) which is configured to allow airflow to flow from the wire manufacturing workshop (1) to the dust remover (5) in one way under the condition of dust explosion.
Description
Technical Field
The disclosure relates to the technical field of tobacco processing, in particular to a tobacco processing production system and a dust removal control method thereof.
Background
The processing technology of the tobacco manufacturing workshop is special, a large amount of dust can be generated in the processing and conveying processes, according to statistics, the tobacco raw leaves contain inorganic dust accounting for 2-4% of the total amount, the tobacco dust accounting for about 2% of the total amount is generated in the processing and conveying processes, and the tobacco dust has explosion danger.
The dust explosion must have three elements: 1. the dust concentration is between the upper limit and the lower limit; 2. the oxygen content is above the maximum allowable oxygen content; 3. the energy of the ignition source is greater than the minimum ignition energy. Therefore, the dust removal of the tobacco manufacturing workshop is well done, so that the practical significance is achieved for improving the production efficiency of the tobacco workshop and the product quality, the working environment of the workshop is improved, the probability of causing relevant occupational diseases to workers in the workshop is reduced, and the risk of production safety is reduced.
Disclosure of Invention
The embodiment of the disclosure provides a silk production system and a dust removal control method thereof, which can improve the safety of the system in the production process.
According to an aspect of the present disclosure, there is provided a wire manufacturing production system including:
a silk making workshop;
a first air duct and a second air duct;
the dust remover is provided with an air inlet and an air outlet, and the air inlet is communicated with the silk making workshop through a first air pipe; and
the air inlet of the fan is communicated with the air outlet of the dust remover through a second air pipe and is used for providing negative pressure for the work of the dust remover;
the first air pipe is provided with a one-way explosion-proof valve which is configured to allow airflow to flow in one way from the wire making workshop to the dust remover under the condition of dust explosion.
In some embodiments, the silk production system further comprises:
the first pressure sensor is arranged in the first air pipe and used for detecting the pressure in the first air pipe;
the second pressure sensor is arranged in the second air pipe and used for detecting the pressure in the second air pipe; and
and the controller is in signal connection with the first pressure sensor and the second pressure sensor and is used for sending out a pressure difference alarm signal under the condition that the difference between the detection values of the second pressure sensor and the first pressure sensor exceeds a preset pressure difference.
In some embodiments, the dust collector includes an ash hopper for collecting dust, and the system further includes:
the temperature sensor is arranged at least one of the first air pipe, the second air pipe and the ash bucket, the temperature sensor arranged in the first air pipe is used for detecting the temperature in the first air pipe, the temperature sensor arranged in the second air pipe is used for detecting the temperature in the second air pipe, and the temperature sensor arranged in the ash bucket is used for detecting the temperature in the ash bucket; and
and the controller is connected with the temperature sensor and is used for sending a temperature alarm signal under the condition that the detection value of the temperature sensor exceeds the preset temperature.
In some embodiments, the duster includes a duster main body part and a flameless explosion venting part provided on the duster main body part for extinguishing flames and stopping detonation products.
In some embodiments, the wire production system further comprises a controller, and the flameless explosion venting component comprises:
the flame extinguishing module is used for extinguishing flame;
an explosion-proof junction box; and
the explosion venting sheet is arranged at the top of the dust removing main body part and is provided with a signal sending module, and the signal sending module is connected with the controller through an explosion-proof junction box and is used for sending an explosion venting signal to the controller under the condition of explosion venting;
the controller is used for stopping the fan when receiving the explosion venting signal.
In some embodiments, the dust collector includes an ash hopper for collecting dust, and the system further includes:
the material level detection sensor is used for detecting the material level in the ash hopper; and
and the controller is connected with the material level detection sensor and used for sending a material level overproof alarm signal under the condition that the detection value of the material level detection sensor exceeds a preset material level.
According to another aspect of the present disclosure, a dust removal control method based on the above-mentioned silk production system is provided, including:
detecting the pressure in the first air duct through a first pressure sensor;
detecting the pressure of a second air pipe through a second pressure sensor;
and calculating the difference between the detection values of the second pressure sensor and the first pressure sensor through the controller, and sending a pressure difference alarm signal under the condition that the pressure difference exceeds a preset pressure difference.
In some embodiments, the dust removal control method further comprises:
and adjusting the running frequency of the fan according to the product of the difference of the detection values of the first pressure sensor and the second pressure sensor and a preset control coefficient.
In some embodiments, the dust removal control method further comprises:
respectively detecting the temperatures in the first air pipe, the second air pipe and the ash bucket through a plurality of temperature sensors;
and judging whether the detection value of the temperature sensor exceeds the preset temperature or not through the controller, and sending a temperature alarm signal under the condition that the detection value of one of the temperature sensors exceeds the preset temperature.
In some embodiments, the dust removal control method further comprises:
and receiving an explosion venting signal sent by the flameless explosion venting component through the controller, and stopping the fan from running under the condition of receiving the explosion venting signal.
In some embodiments, the dust removal control method further comprises:
detecting the material level in the ash hopper through a material level detection sensor;
whether the detection value of the material level detection sensor exceeds a preset material level or not is judged through the controller, and a material level exceeding alarm signal is sent out under the condition that the detection value exceeds the preset material level for a first preset time.
In some embodiments, the dust collector further comprises a blowing part and a filter bag, the filter bag is arranged in the dust hopper, the blowing part is arranged above the opening of the filter bag and is used for carrying out intermittent back blowing from the interior of the filter bag through compressed gas so as to blow down dust attached to the outer surface of the filter bag into the dust hopper, and the dust collection state can be recovered after the dust removal is finished;
the controller is used for shortening the back flushing time interval from the first time to the second time after receiving the alarm signal that the material level exceeds the standard for a preset time, and restoring the back flushing time interval to the first time after eliminating the alarm signal that the material level exceeds the standard.
In some embodiments, the dust removal control method further comprises:
starting the silk making production system after the running time of the dust remover exceeds a second preset time; and
and after delaying a third preset time after the wire-making production system stops operating, stopping the dust remover.
According to the shred production system disclosed by the embodiment of the disclosure, the dust remover is arranged, so that the tobacco raw materials and dust generated in the processing and conveying processes can be removed, the dust concentration can be reduced, the production efficiency of a shred production workshop can be improved, the workshop environment can be improved, the risk of dust explosion can be reduced, and the safety of shred production can be improved; and moreover, a passive one-way explosion-proof valve is additionally arranged in the first air pipe in front of the dust remover, so that if combustion and explosion occur, media such as flame, hot air and the like can be prevented from flowing back to a wire making workshop, and the production safety is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
fig. 1 is a schematic structural view of some embodiments of the presently disclosed wire-making production system.
Description of the reference numerals
1. A silk making workshop; 2. a fan; 3. a first air duct; 4. a second air duct; 5. a dust remover; 51. a dust removal main body component; 52. an ash hopper; 6. a first pressure sensor; 6', a second pressure sensor; 7. a temperature sensor; 8. a one-way explosion-proof valve; 9. a flameless explosion venting component; 91. explosion venting sheets; 10. a material level detection sensor.
Detailed Description
The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous.
The terms "first", "second", and the like in the present disclosure are merely for convenience of description to distinguish different constituent elements having the same name, and do not denote a sequential or primary-secondary relationship.
In addition, when an element is referred to as being "on" another element, it can be directly on the other element or be indirectly on the other element with one or more intervening elements interposed therebetween. In addition, when an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element with one or more intervening elements interposed therebetween. Hereinafter, like reference numerals denote like elements.
The description of the relative orientations and positional relationships of the indications "upper," "lower," "top," "bottom," "front," "back," "inner" and "outer" and the like are used in this disclosure for convenience in describing the disclosure, and do not indicate or imply that the indicated devices must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the disclosure.
As shown in fig. 1, in some embodiments, the present disclosure provides a filament manufacturing system comprising a filament manufacturing plant 1, a first air duct 3, a second air duct 4, a dust separator 5, and a fan 2.
The dust collector 5 is provided with an air inlet A and an air outlet B, the air inlet A is communicated with the silk making workshop 1 through a first air pipe 3 and can be arranged at the top of the dust collector 5, and the air outlet B can be arranged at the lower area of the side face of the dust collector 5. The dust separator 5 may be provided in a separate dust removal compartment. The air inlet of the fan 2 is communicated with the air outlet B of the dust remover 5 through a second air pipe 4, the air outlet of the fan 2 is connected with a negative pressure source, and the fan 2 is used for providing negative pressure for the work of the dust remover 5.
The first air pipe 3 is provided with a one-way explosion-proof valve 8, and the one-way explosion-proof valve is configured to allow airflow to flow from the wire manufacturing workshop 1 to the dust remover 5 in a one-way mode under the condition that dust is exploded. When dust explosion happens, the shock wave is at the front end of the flame, the one-way explosion-proof valve 8 is rapidly closed by the shock wave generated by explosion and is locked by the self-locking mechanism, the valve clack is prevented from being opened, flame and pressure wave propagation are prevented, and after the explosion is finished, the valve is manually reset and can be reused after simple maintenance. In normal operation, the valve flap is opened by the auxiliary opening device.
The system of this embodiment's throwing production system is through setting up dust remover 5 for get rid of the tobacco raw materials and the dust that produces in processing and the transportation process, and get rid of the debris in the production line, can reduce dust concentration, can not only improve the production efficiency in throwing workshop, improve workshop environment, can also reduce the risk of dust explosion, improve the security of throwing production. In addition, a passive one-way explosion-proof valve 8 is additionally arranged in a first air pipe in front of the dust remover 5, so that if combustion explosion occurs, media such as flame, hot air and the like can be prevented from flowing back to the silk making workshop 1, and the production safety is improved.
In some embodiments, as shown in fig. 1, the wire production system may further comprise: the first pressure sensor 6 is arranged in the first air pipe 3 and used for detecting the pressure in the first air pipe 3; the second pressure sensor 6' is arranged in the second air duct 4 and used for detecting the pressure in the second air duct 4; and the controller is in signal connection with the first pressure sensor 6 and the second pressure sensor 6 'and is used for sending out a pressure difference alarm signal when the difference between the detection values of the first pressure sensor 6 and the second pressure sensor 6' exceeds a preset pressure difference.
The embodiment monitors the pressure difference of the front air pipe and the rear air pipe of the dust remover in real time, and indicates that the dust capacity in the dust remover 5 is full or the dust remover 5 is possibly blocked at the inner part, the air inlet A and the air outlet B under the condition that the current rear pressure difference exceeds the preset pressure difference. After the production personnel are prompted by the alarm signal, the dust in the dust remover 5 can be removed in time, or the position where the blockage possibly exists is checked, so that the normal work of the dust remover 5 can be ensured.
In this embodiment, the detection value of the first pressure sensor 6 may reflect a negative pressure value F of the process off-gas discharged from the filament manufacturing plant 1, and the controller is configured to adjust the operating frequency P of the fan 2 according to a difference s between the detection values of the first pressure sensor 6 and the second pressure sensor 6' multiplied by a preset control coefficient r. Through correlating the operating frequency P of the fan 2 with the difference s of the pressure detection values, when the difference s of the pressure detection values changes due to the change of the accumulated dust amount in the air pipe and the dust remover 5, the operating frequency P of the fan 2 can be adjusted in time, the following performance of the air pressure of the fan 2 is improved, the stability of the negative pressure value F of the process tail gas discharged from the silk making workshop 1 is ensured, and the potential safety hazard caused by overhigh pressure is prevented.
In some embodiments, as shown in fig. 1, the dust collector 5 includes an ash hopper 52 for collecting dust, and the system for producing silk further includes: the temperature sensor 7 is arranged at least one of the first air duct 3, the second air duct 4 and the ash bucket 52, the temperature sensor 7 arranged in the first air duct 3 is used for detecting the temperature in the first air duct 3, the temperature sensor 7 arranged in the second air duct 4 is used for detecting the temperature in the second air duct 4, and the temperature sensor 7 arranged in the ash bucket 52 is used for detecting the temperature in the ash bucket 52; and the controller is connected with the temperature sensor 7 and used for sending a temperature alarm signal under the condition that the detection value of the temperature sensor 7 exceeds the preset temperature, and the preset temperature can be the temperature of the process gas. The tobacco shred production line needs to dry the tobacco shreds, hot air is used for drying the tobacco shreds, the process gas temperature refers to the temperature of the hot air needed when the tobacco shreds are dried, and the temperature needs to be within a preset range of the process processing requirement so as to ensure the drying effect of the tobacco shreds.
This embodiment is through carrying out real-time supervision to the temperature of at least one department in preceding back tuber pipe of dust remover 5 and the ash bucket 52, when temperature sensor 7's detected value exceeded preset temperature, probably it is serious that dust remover 5 lasts longer the duration of operation and generates heat, or ambient temperature is higher, or dust remover 5 takes place to block up in the operation, consequently can reduce the risk that the dust takes place to explode through temperature monitoring, further improves the work security of throwing production system.
In some embodiments, as shown in fig. 1, the dust remover 5 comprises a dust removing body part 51 and a flameless explosion venting part 9, and the flameless explosion venting part 9 is arranged on the dust removing body part 51 and is used for extinguishing flames and preventing detonation products.
According to the embodiment, the flameless explosion venting component 9 is arranged, so that flames can be reliably extinguished, dust can be contained, explosion can be prevented, pressure waves and dust released by explosion venting can be absorbed, the working safety of a silk making production system is further improved, and high-risk accidents such as dust explosion and the like can be prevented.
Specifically, the flameless explosion venting means 9 includes: the flame extinguishing module is used for extinguishing flame; an explosion-proof junction box; the explosion venting sheet 91 can be made of metal materials such as stainless steel and the like, is arranged at the top of the shell of the dust removal main body part 51, and is provided with a signal sending module which is connected with the controller through an explosion-proof junction box and used for sending an explosion venting signal to the controller under the condition of explosion venting; and a holder. Wherein, the controller is used for making fan 2 stop operation when receiving to let out and explode the signal.
The explosion venting sheet 91 in the flameless explosion venting part 9 of the embodiment is provided with a signal sending module and is connected with the controller through the explosion-proof junction box, so that an explosion venting signal can be obtained through the controller in time when the flameless explosion venting part 9 is subjected to explosion venting, and an alarm or a safety measure can be taken. For example, the dust remover 5 can be stopped by the way that an audible and visual alarm signal is generated by an alarm, a reminding dialog box pops up in a screen to attract the attention of an operator, or the fan 2 is stopped in time. This structure can extinguish flame fast when taking place the dust blasting, the suppression dust to make the dust remover stop work, can further improve system work security.
In some embodiments, the dust collector 5 includes an ash hopper 52 for collecting dust, and the wire manufacturing system further includes: a material level detection sensor 10 for detecting the material level in the hopper 52; and the controller is connected with the material level detection sensor 10 and used for sending out a material level overproof alarm signal under the condition that the detection value of the material level detection sensor 10 exceeds a preset material level.
This embodiment is through carrying out real-time supervision to the material level condition in the ash bucket 52, can in time pour out when discovering that the dust of collecting in the ash bucket 52 is too full, prevents that dust concentration is great to take place the explosion easily, improves the security of dust remover 5 work.
Furthermore, the dust collector 5 further comprises a blowing part and a filter bag, the filter bag is arranged in the dust hopper 52, the blowing part is arranged above the opening of the filter bag and used for carrying out intermittent back blowing from the interior of the filter bag through compressed gas so as to blow down dust attached to the outer surface of the filter bag into the dust hopper 52, and the dust collection state can be recovered after the dust removal is finished. The controller is used for shortening the back flushing time interval from the first time to the second time after receiving the alarm signal that the material level exceeds the standard for a preset time, and restoring the back flushing time interval to the first time after eliminating the alarm signal that the material level exceeds the standard. For example, the first time is 6s and the second time is 3 s.
The embodiment can remove the dust on the filter bag at a longer time interval when the material level of the dust in the dust hopper 52 is lower, and increase the blowing frequency of the compressed gas after the material level in the dust hopper 52 exceeds the standard and sends out the warning signal for the preset time so as to more efficiently remove the dust on the filter bag and better collect the dust in the following process. This makes it possible to flexibly adjust the blowing frequency in accordance with the accumulation of dust in the dust hopper 52.
In the silk making production system of the embodiment of the disclosure, the dust collector 5 is used for separating dust from waste gas, and the temperature sensors 7 are arranged at the air inlet and outlet pipes of the dust collector 5 and the ash bucket 52 for detection; arranging a pressure sensor at the air inlet and outlet pipe of the dust remover 5 to obtain the working pressure difference of the dust remover 5; a material level detection sensor 10 is added at the ash hopper 52, a passive one-way explosion-proof valve 8 is added at the upstream of an air inlet A of the dust remover 5, and a flameless explosion-venting component 9 is added on the dust remover 5. The measures can monitor the working safety of the dust remover 5, the controller can adopt PLC, DSP and the like, the real-time monitoring of the working environment parameters of the dust remover can be realized through the signal transmission and control in the controller, the reliable methods for extinguishing flame, restraining dust and controlling pressure and temperature are provided, and the running safety of the dust remover is improved.
Secondly, this disclosure provides a dust removal control method based on the above-mentioned embodiment throwing production system, in some embodiments, includes:
detecting the pressure in the first air duct 3 by a first pressure sensor 6;
detecting the pressure of the second air duct 4 by a second pressure sensor 6';
the difference between the detection values of the second pressure sensor 6' and the first pressure sensor 6 is calculated by the controller, and a differential pressure alarm signal is sent out when the differential pressure exceeds a preset differential pressure.
The embodiment monitors the pressure difference of the front air pipe and the rear air pipe of the dust remover in real time, and indicates that the dust capacity in the dust remover 5 is full or the dust remover 5 is possibly blocked at the inner part, the air inlet A and the air outlet B under the condition that the current rear pressure difference exceeds the preset pressure difference. After the production personnel are prompted by the alarm signal, the dust in the dust remover 5 can be removed in time, or the position where the blockage possibly exists is checked, so that the normal work of the dust remover 5 can be ensured.
In some embodiments, the dust removal control method of the present disclosure further includes:
and adjusting the operating frequency P of the fan 2 according to the product of the difference s between the detection values of the first pressure sensor 6 and the second pressure sensor 6' and a preset control coefficient r.
In the embodiment, by correlating the operating frequency P of the fan 2 with the difference s between the pressure detection values, when the difference s between the pressure detection values changes due to the change of the accumulated amounts of dust in the air pipe and the dust remover 5, the operating frequency P of the fan 2 can be adjusted in time, the following performance of the air pressure of the fan 2 is improved, the stability of the negative pressure value F of the process tail gas discharged from the wire manufacturing workshop 1 is ensured, and the potential safety hazard caused by overhigh pressure is prevented.
In some embodiments, the dust removal control method of the present disclosure further includes:
the temperatures in the first air duct 3, the second air duct 4 and the ash hopper 52 are respectively detected by a plurality of temperature sensors 7;
whether the detection value of the temperature sensor 7 exceeds the preset temperature or not is judged through the controller, and a temperature alarm signal is sent out under the condition that the detection value of one of the temperature sensors 7 exceeds the preset temperature.
This embodiment is through carrying out real-time supervision to the temperature in preceding back tuber pipe of dust remover 5 and the ash bucket 52, when temperature sensor 7's detected value exceeded preset temperature, probably it is serious that dust remover 5 lasts the longer generating heat of operating time, or ambient temperature is higher, or dust remover 5 takes place to block up at the operation in-process, consequently can reduce the dust through temperature monitoring and take place to explode the risk, further improves the work security of system for making silk production.
In some embodiments, the dust removal control method further comprises:
and receiving an explosion venting signal sent by the flameless explosion venting part 9 through the controller, and stopping the fan 2 under the condition of receiving the explosion venting signal.
According to the embodiment, the flameless explosion venting component 9 is arranged, so that flames can be reliably extinguished, dust can be contained, explosion can be prevented, pressure waves and dust released by explosion venting can be absorbed, the working safety of a silk making production system is further improved, and high-risk accidents such as dust explosion and the like can be prevented. And when the flameless explosion venting component 9 is exploded, an explosion venting signal is obtained in time through the controller, so that the fan 2 stops running in time to stop the dust remover 5, and the working safety of the system is further improved.
In some embodiments, the dust removal control method of the present disclosure further includes:
detecting the material level in the ash hopper 52 by the material level detecting sensor 10;
whether the detection value of the material level detection sensor 10 exceeds a preset material level or not is judged through the controller, and a material level exceeding alarm signal is sent out under the condition that the detection value exceeds the preset material level for a first preset time. For example, when the material level detection value exceeds the preset material level for t1 to be more than or equal to 15min, a material level over-standard alarm signal is sent.
This embodiment is through carrying out real-time supervision to the material level condition in the ash bucket 52, can in time pour out when discovering that the dust of collecting in the ash bucket 52 is too full, prevents that dust concentration is great to take place the explosion easily, improves the security of dust remover 5 work.
In some embodiments, the dust collector 5 further comprises a blowing part and a filter bag, wherein the blowing part is arranged above the opening of the filter bag and is used for performing intermittent back blowing from the interior of the filter bag through compressed gas; the dust removal control method further comprises the following steps:
in response to the alarm signal that the material level exceeds the standard, the back flushing time interval is shortened from the first time to the second time;
and after the alarm signal that the material level exceeds the standard is eliminated, the back flushing time interval is recovered to the first time.
The embodiment can remove the dust on the filter bag at a longer time interval when the material level of the dust in the dust hopper 52 is lower, and increase the blowing frequency of the compressed gas after the material level in the dust hopper 52 exceeds the standard and sends out the warning signal for the preset time so as to more efficiently remove the dust on the filter bag and better collect the dust in the following process. This makes it possible to flexibly adjust the blowing frequency in accordance with the accumulation of dust in the dust hopper 52.
In some embodiments, the dust removal control method of the present disclosure further includes:
starting the silk making production system after the running time of the dust remover 5 exceeds a second preset time, for example, starting a starting button of the silk making production system when the running time t2 of the dust remover 5 is more than or equal to 15 min; and
and stopping the dust remover 5 after delaying a third preset time after the wire-making production system stops operating, for example, stopping the dust remover after the delay time t3 of the dust remover is more than or equal to 15min after the wire-making production system stops operating.
A system for producing filaments provided by the present disclosure is described in detail above. The principles and embodiments of the present disclosure are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present disclosure. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present disclosure without departing from the principle of the present disclosure, and such improvements and modifications also fall within the scope of the claims of the present disclosure.
Claims (15)
1. A wire manufacturing production system, comprising:
a filament manufacturing workshop (1);
a first air duct (3) and a second air duct (4);
the dust remover (5) is provided with an air inlet (A) and an air outlet (B), and the air inlet (A) is communicated with the silk making workshop (1) through the first air pipe (3); and
the air inlet of the fan (2) is communicated with the air outlet (B) of the dust remover (5) through the second air pipe (4) and is used for providing negative pressure for the work of the dust remover (5);
the first air pipe (3) is provided with a one-way explosion-proof valve (8) which is configured to only allow airflow to flow from the wire manufacturing workshop (1) to the dust remover (5) in a one-way mode under the condition of dust explosion.
2. The wire production system according to claim 1, further comprising:
the first pressure sensor (6) is arranged on the first air pipe (3) and used for detecting the pressure in the first air pipe (3);
the second pressure sensor (6') is arranged on the second air pipe (4) and used for detecting the pressure in the second air pipe (4); and
and the controller is in signal connection with the first pressure sensor (6) and the second pressure sensor (6 ') and is used for sending out a differential pressure alarm signal when the difference between the detection values of the first pressure sensor (6) and the second pressure sensor (6') exceeds a preset pressure difference.
3. A wire production system according to claim 2, wherein the controller is configured to adjust the operating frequency of the fan (2) in accordance with a preset control coefficient multiplied by a difference between the detection values of the first pressure sensor (6) and the second pressure sensor (6').
4. The system according to claim 1, wherein the dust collector (5) includes an ash hopper (52) for collecting dust, the system further comprising:
the temperature sensor (7) is arranged at least one of the first air pipe (3), the second air pipe (4) and the ash bucket (52), the temperature sensor (7) arranged on the first air pipe (3) is used for detecting the temperature in the first air pipe (3), the temperature sensor (7) arranged on the second air pipe (4) is used for detecting the temperature in the second air pipe (4), and the temperature sensor (7) arranged on the ash bucket (52) is used for detecting the temperature in the ash bucket (52); and
and the controller is connected with the temperature sensor (7) and is used for sending a temperature alarm signal under the condition that the detection value of the temperature sensor (7) exceeds the preset temperature.
5. A wire production system according to claim 4, wherein the dust collector (5) comprises a dust collecting main body part (51) and a flameless explosion venting part (9), and the flameless explosion venting part (9) is provided on the dust collecting main body part (51) and is used for extinguishing flames and preventing detonation products.
6. A wire production system according to claim 5, further comprising a controller, wherein the flameless explosion venting means (9) comprises:
the flame extinguishing module is used for extinguishing flame;
an explosion-proof junction box; and
the explosion venting sheet (91) is arranged at the top of the dust removing main body component (51), the explosion venting sheet (91) is provided with a signal sending module, and the signal sending module is connected with the controller through the explosion-proof junction box and is used for sending an explosion venting signal to the controller under the condition of explosion venting;
the controller is used for stopping the fan (2) from running when the explosion venting signal is received.
7. The system according to claim 1, wherein the dust collector (5) includes an ash hopper (52) for collecting dust, the system further comprising:
a material level detection sensor (10) for detecting the material level in the ash hopper (52); and
and the controller is connected with the material level detection sensor (10) and is used for sending a material level overproof alarm signal under the condition that the detection value of the material level detection sensor (10) exceeds a preset material level.
8. The system for producing silk according to claim 7, wherein the dust collector (5) further comprises a blowing member and a filter bag, the blowing member being provided above an opening of the filter bag for intermittent back blowing from the inside of the filter bag by compressed gas;
the controller is used for shortening the back flushing time interval from the first time to the second time after receiving the alarm signal that the material level exceeds the standard for a preset time, and restoring the back flushing time interval to the first time after eliminating the alarm signal that the material level exceeds the standard.
9. A dust removal control method based on the silk production system of any claim 1-8, characterized by comprising:
detecting the pressure in the first air duct (3) by a first pressure sensor (6);
-detecting the pressure of said second air duct (4) by means of a second pressure sensor (6');
and calculating the difference between the detection values of the first pressure sensor (6) and the second pressure sensor (6') through a controller, and sending a differential pressure alarm signal when the differential pressure exceeds a preset differential pressure.
10. The dust removal control method according to claim 9, further comprising:
and adjusting the operating frequency of the fan (2) according to the product of the difference between the detection values of the first pressure sensor (6) and the second pressure sensor (6') and a preset control coefficient.
11. The dust removal control method according to claim 9, further comprising:
respectively detecting the temperatures in the first air pipe (3), the second air pipe (4) and the ash hopper (52) through a plurality of temperature sensors (7);
and judging whether the detection value of the temperature sensor (7) exceeds a preset temperature or not through the controller, and sending a temperature alarm signal under the condition that the detection value of one of the temperature sensors (7) exceeds the preset temperature.
12. The dust removal control method according to claim 9, further comprising:
and receiving an explosion venting signal sent by the flameless explosion venting component (9) through the controller, and stopping the fan (2) from running under the condition of receiving the explosion venting signal.
13. The dust removal control method according to claim 9, further comprising:
detecting the material level in the ash hopper (52) through a material level detection sensor (10);
and judging whether the detection value of the material level detection sensor (10) exceeds a preset material level through the controller, and sending a material level exceeding alarm signal under the condition that the detection value exceeds the preset material level for a first preset time.
14. The dust removal control method according to claim 13, wherein the dust remover (5) further comprises a blowing member and a filter bag, the blowing member is disposed above an opening of the filter bag and is used for performing intermittent back blowing from the interior of the filter bag by compressed gas; the dust removal control method further comprises:
in response to the alarm signal that the material level exceeds the standard, the back flushing time interval is shortened from the first time to the second time;
and after the alarm signal that the material level exceeds the standard is eliminated, the back flushing time interval is recovered to the first time.
15. The dust removal control method according to claim 9, further comprising:
starting the silk-making production system after the running time of the dust remover (5) exceeds a second preset time; and
and after delaying a third preset time after the silk making production system stops operating, stopping the operation of the dust remover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442425.3A CN111558260A (en) | 2020-05-22 | 2020-05-22 | Silk making production system and dust removal control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442425.3A CN111558260A (en) | 2020-05-22 | 2020-05-22 | Silk making production system and dust removal control method thereof |
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| CN111558260A true CN111558260A (en) | 2020-08-21 |
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| CN202010442425.3A Pending CN111558260A (en) | 2020-05-22 | 2020-05-22 | Silk making production system and dust removal control method thereof |
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Application publication date: 20200821 |