CN112934554A - Efficient and safe big cyclone dust treatment and recovery process - Google Patents
Efficient and safe big cyclone dust treatment and recovery process Download PDFInfo
- Publication number
- CN112934554A CN112934554A CN202110101825.2A CN202110101825A CN112934554A CN 112934554 A CN112934554 A CN 112934554A CN 202110101825 A CN202110101825 A CN 202110101825A CN 112934554 A CN112934554 A CN 112934554A
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- powder
- cyclone dust
- explosion
- filter screen
- recovery
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/45—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using cyclone separators
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a high-efficiency and high-safety large cyclone dust treatment and recovery process, which comprises the following steps: s1: powder room fire prevention spraying, in the powder transmission process, by the condition of spark detection extinguishing device real-time supervision powder transmission, S2: recovering dust by a large cyclone, separating powder from a material block by a cyclone dust collector, and S3: the material block is safely recycled and filtered, when dust explosion occurs, the one-way explosion-proof valve is closed, shock waves generated by explosion are blocked at the rear end of the cyclone dust collector, and flame explosion inside the recycling filter is eliminated by the flameless explosion venting device. According to the invention, the powder after powder room spraying is finished is quickly recycled and filtered through the cyclone dust collector and the recycling filter, so that not only is the waste of powder resources avoided, but also the spraying cost is reduced, flame explosion generated inside the recycling filter is quickly eliminated through the one-way explosion-proof valve and the flameless explosion venting device, and the safety is high.
Description
Technical Field
The invention relates to the technical field of dust recovery, in particular to a high-efficiency and high-safety large cyclone dust treatment and recovery process.
Background
Dust refers to solid particles suspended in air, and is conventionally named by many names, such as dust, dirt, smoke, mineral dust, sand dust, powder and the like, and the terms are not clear limits, and the international standardization organization specifies that solid suspended matters with the particle size of less than 75 microns are defined as dust, the existence of dust in the atmosphere is one of main reasons for maintaining the earth temperature, the excessive or insufficient dust in the atmosphere can have disastrous influence on the environment, but in life and work, productive dust is a natural enemy of human health and is a main reason for inducing various diseases, and in spraying processing operation, the dust is often conveyed to a powder chamber for spraying operation.
The prior art has the following defects: after the powder spraying operation of the existing powder chamber is finished, because the residual powder carries the material blocks generated in the spraying operation, the treatment method of the powder is usually discarded along with the material blocks, so that not only is the resource waste caused, but also the processing cost is increased.
Disclosure of Invention
The invention provides a high-efficiency and high-safety process for treating and recovering dust in a large cyclone, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency and high-safety large cyclone dust treatment and recovery process comprises the following steps:
s1: fireproof spraying for powder room
The powder is conveyed to the powder room from the powder supply center for use, the powder conveying condition is monitored in real time by the spark detection extinguishing device in the powder conveying process, and when the spark detection extinguishing device monitors that sparks exist in the powder, the sparks are extinguished in time;
s2: recovery of dust by cyclone
After the powder room finishes spraying operation, powder and part of material blocks generated during spraying are conveyed into a cyclone dust collector through a conveying pipe, the cyclone dust collector separates the powder from the material blocks, and then the powder is conveyed to a feeding center through a return pipe for secondary use;
s3: safe recovery and filtration of material blocks
A material block in the cyclone dust collector is transmitted into the recovery filter through a conveying pipe, a one-way explosion-proof valve is installed on the conveying pipe between the recovery filter and the cyclone dust collector, the recovery filter performs drying and smashing reduction treatment on the material block to reduce the material block into powder, the one-way explosion-proof valve is closed during dust explosion in the reduction process, shock waves generated by explosion are blocked at the rear end of the cyclone dust collector, flame explosion inside the recovery filter is eliminated by a flameless explosion venting device, and the one-way explosion-proof valve is reset manually after the explosion is finished.
Preferably, in step S1, the spark detecting and extinguishing device includes a spark probe, a controller, and an extinguishing device, wherein an output end of the spark probe is electrically connected to an input end of the controller, and an input end of the extinguishing device is electrically connected to an output end of the controller.
Preferably, when the spark probe monitors that the powder carries the spark, the spark probe sends an electric signal to the controller, the controller automatically controls the extinguishing device to operate, and the high-pressure nozzle of the extinguishing device sprays carbon dioxide to extinguish the spark.
Preferably, the controller is provided with a 32-bit industrial-grade high-speed processing chip, the adjustable threshold is matched with a superloop framework and an EDF filtering anti-interference algorithm to automatically extinguish, the adjustable threshold is automatically alarmed, the adjustable threshold is automatically linked with the output of a relay, alarming and faults are recorded, 2000 pieces of power failure storage rolling records, the faults are automatically alarmed and linked with the output of the relay, the health condition of a probe is automatically detected, a fuse circuit breaking real-time detection technology is adopted, and the 8-inch liquid crystal touch screen is adopted.
Preferably, in step S2, the cyclone dust collector includes a conical bin, a spiral blade, a filter screen and a blower, the filter screen is fixedly disposed at the top of the inner cavity of the conical bin, the spiral blade is movably disposed at the center of the inner cavity of the conical bin, and the blower is fixedly disposed at one side of the bottom of the conical bin.
Preferably, the mesh number of the filter screen is 300, the powder and the material block are conveyed into the conical bin through the conveying pipe, after the material block and the dust are separated by the filter screen, the air blower blows air into the conical bin, and the spiral blades rotate under the influence of wind power to enable the powder to fall into the bottom of the conical bin.
Preferably, in step S3, the recovery filter includes collection box, filter screen, discharge valve, shock dynamo and drying apparatus, and the filter screen is fixed to be set up in the inner chamber center department of collection box, and the filter screen contacts with the shock dynamo output, and shock dynamo is fixed to be set up in the outside middle part of collection box, and the drying apparatus is fixed to be set up in the top of collection box, and the discharge valve sets up in the inboard bottom of collection box.
Preferably, the mesh number of the filter screen is 300, when the material blocks fall on the filter screen, the vibration motor drives the filter screen to vibrate together, the dryer dries the material blocks, the material blocks are loosened after being dried and are smashed by the vibrating filter screen, and the processed powder passes through the filter screen and falls into the discharge valve for storage.
Preferably, in step S3, the flameless explosion venting device includes a mesh-shaped fire retardant element and a pressure relief device, when the flame generated by the dust explosion inside the recovery filter passes through the mesh-shaped fire retardant element, the mesh-shaped fire retardant element exchanges heat with the flame to cool the high-temperature flame, and the pressure relief device relieves pressure and releases flue gas inside the recovery filter.
The invention has the technical effects and advantages that:
according to the powder recycling process, the cyclone dust collector and the recycling filter are used for rapidly recycling and filtering the powder after powder room spraying is finished, so that not only is the waste of powder resources avoided, but also the spraying cost is reduced, in the whole powder recycling process, the process of transmitting the powder to the powder room is monitored in real time through the spark detection extinguishing device, the phenomenon of dust ignition is avoided, flame explosion generated inside the recycling filter is rapidly eliminated through the one-way explosion-proof valve and the flameless explosion venting device, and the safety is high.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a high-efficiency and high-safety large cyclone dust treatment and recovery process, which comprises the following steps:
s1: fireproof spraying for powder room
The powder is conveyed to the powder room from the powder supply center for use, the powder conveying condition is monitored in real time by the spark detection extinguishing device in the powder conveying process, and when the spark detection extinguishing device monitors that sparks exist in the powder, the sparks are extinguished in time;
s2: recovery of dust by cyclone
After the powder room finishes spraying operation, powder and part of material blocks generated during spraying are conveyed into a cyclone dust collector through a conveying pipe, the cyclone dust collector separates the powder from the material blocks, and then the powder is conveyed to a feeding center through a return pipe for secondary use;
s3: safe recovery and filtration of material blocks
A material block in the cyclone dust collector is transmitted into the recovery filter through a conveying pipe, a one-way explosion-proof valve is installed on the conveying pipe between the recovery filter and the cyclone dust collector, the recovery filter performs drying and smashing reduction treatment on the material block to reduce the material block into powder, the one-way explosion-proof valve is closed during dust explosion in the reduction process, shock waves generated by explosion are blocked at the rear end of the cyclone dust collector, flame explosion inside the recovery filter is eliminated by a flameless explosion venting device, and the one-way explosion-proof valve is reset manually after the explosion is finished.
Further, in the above technical solution, in the step S1, the spark detecting and extinguishing device includes a spark probe, a controller, and an extinguishing device, an output end of the spark probe is electrically connected to an input end of the controller, and an input end of the extinguishing device is electrically connected to an output end of the controller.
Further, in the above technical scheme, when the spark probe monitors that the powder carries the spark, the spark probe sends an electric signal to the controller, the controller automatically controls the extinguishing device to operate, the high-pressure nozzle of the extinguishing device sprays carbon dioxide to extinguish the spark, and when the powder room carries out spraying operation, the powder is transmitted after the pipeline is pressurized by the pressurizing equipment in the process that the powder room transmits the powder, because the powder is transmitted in a high-pressure environment, the friction force received in the powder transmission process is large, the generation of the spark can be caused by the overheating of the friction force, the spark is monitored in real time by the spark detection extinguishing device, and when the spark is just generated, the spark can be timely extinguished, so that the dust is prevented from being ignited by the spark, the dust can be exploded in the moment of dust combustion, a large potential safety hazard exists, and the potential safety hazard is effectively eliminated by the use of.
Further, in the technical scheme, the controller is provided with a 32-bit industrial-grade high-speed processing chip, the adjustable threshold is matched with a superloop framework and an EDF filtering anti-interference algorithm to automatically extinguish, automatically alarm, automatically link with the output of a relay, record alarm and fault, save rolling record for 2000 power-down, automatically alarm and link with the output of the relay, automatically detect the health condition of the probe, detect the fuse circuit-breaking in real time and realize an 8-inch liquid crystal touch screen.
Further, in the above technical solution, in step S2, the cyclone dust collector includes a conical bin, a helical blade, a filter screen, and a blower, the filter screen is fixedly disposed at the top of an inner cavity of the conical bin, the helical blade is movably disposed at the center of the inner cavity of the conical bin, and the blower is fixedly disposed at one side of the bottom of the conical bin.
Furthermore, in the above technical scheme, the mesh number of the filter screen is 300 meshes, the powder and the material block are conveyed to the conical bin through the conveying pipe, after the filter screen separates the material block from the dust, the air blower blows air to the inside of the conical bin, the spiral blades are rotated under the influence of wind power, the powder falls into the bottom of the conical bin, the powder and the material block can be rapidly separated through the cyclone dust collector, and the separated powder can flow back to the feeding center through the backflow tank for secondary utilization.
Further, in the above technical scheme, in step S3, the recovery filter includes collection box, filter screen, discharge valve, shock dynamo and drying apparatus, and the filter screen is fixed to be set up in the inner chamber center department of collection box, and the filter screen contacts with the shock dynamo output, and shock dynamo is fixed to be set up in the outside middle part of collection box, and the drying apparatus is fixed to be set up in the top of collection box, and the discharge valve sets up in the inboard bottom of collection box.
Furthermore, in the technical scheme, the mesh number of the filter screen is 300, when the material block falls on the filter screen, the vibration motor drives the filter screen to vibrate together, the dryer dries the material block, the material block starts to be loose after being dried and is smashed by the vibrating filter screen, and the treated powder passes through the filter screen and falls into the discharge valve for storage.
Further, in the above technical solution, in step S3, the flameless explosion venting device includes a mesh-shaped fire retardant element and a pressure relief device, when the flame generated by the dust explosion inside the recovery filter passes through the mesh-shaped fire retardant element, the mesh-shaped fire retardant element exchanges heat with the flame to cool the high-temperature flame, the pressure relief device performs pressure relief and smoke gas release on the inside of the recovery filter, because the recovery filter performs heat recovery processing on the material block, the temperature inside the recovery filter is generally too high, so that the material block inside the recovery filter has a certain probability of flame explosion after being dried into dust, when the dust flame explosion occurs inside the recovery filter, the one-way explosion-proof valve effectively separates the recovery filter from the cyclone dust collector to protect the cyclone dust collector, and the flameless explosion venting device inside the recovery filter rapidly cools the flame, and the pressure relief and smoke exhaust treatment is carried out on the recovery filter, and the recovery filter is further protected.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: only the structures related to the embodiments of the present disclosure are involved, other structures may refer to general designs, and the same embodiment and different embodiments of the present invention may be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. A high-efficiency and high-safety big cyclone dust treatment and recovery process is characterized in that: the recovery process comprises the following steps:
s1: fireproof spraying for powder room
The powder is conveyed to the powder room from the powder supply center for use, the powder conveying condition is monitored in real time by the spark detection extinguishing device in the powder conveying process, and when the spark detection extinguishing device monitors that sparks exist in the powder, the sparks are extinguished in time;
s2: recovery of dust by cyclone
After the powder room finishes spraying operation, powder and part of material blocks generated during spraying are conveyed into a cyclone dust collector through a conveying pipe, the cyclone dust collector separates the powder from the material blocks, and then the powder is conveyed to a feeding center through a return pipe for secondary use;
s3: safe recovery and filtration of material blocks
A material block in the cyclone dust collector is transmitted into the recovery filter through a conveying pipe, a one-way explosion-proof valve is installed on the conveying pipe between the recovery filter and the cyclone dust collector, the recovery filter performs drying and smashing reduction treatment on the material block to reduce the material block into powder, the one-way explosion-proof valve is closed during dust explosion in the reduction process, shock waves generated by explosion are blocked at the rear end of the cyclone dust collector, flame explosion inside the recovery filter is eliminated by a flameless explosion venting device, and the one-way explosion-proof valve is reset manually after the explosion is finished.
2. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 1, is characterized in that: in step S1, the spark detecting and extinguishing device includes a spark probe, a controller and an extinguishing device, an output end of the spark probe is electrically connected to an input end of the controller, and an input end of the extinguishing device is electrically connected to an output end of the controller.
3. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 2, is characterized in that: when the spark probe monitors that the powder carries the spark, an electric signal is sent to the controller, the controller automatically controls the extinguishing device to operate, and the high-pressure nozzle of the extinguishing device sprays carbon dioxide to extinguish the spark.
4. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 2, is characterized in that: the controller is provided with a 32-bit industrial-grade high-speed processing chip, is matched with a superloop framework and an EDF (erbium doped fiber) filtering anti-interference algorithm to automatically extinguish an adjustable threshold, automatically alarms by an adjustable threshold, automatically links with the output of a relay, records alarms and faults, saves 2000 rolling records when power fails, automatically alarms by faults and links with the output of the relay, automatically detects the health condition of a probe, detects the real-time detection technology of fuse circuit breaking and is an 8-inch liquid crystal touch screen.
5. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 1, is characterized in that: in the step S2, the cyclone dust collector is composed of a conical bin, a helical blade, a filter screen and an air blower, the filter screen is fixedly arranged at the top of the inner cavity of the conical bin, the helical blade is movably arranged at the center of the inner cavity of the conical bin, and the air blower is fixedly arranged at one side of the bottom of the conical bin.
6. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 5, is characterized in that: the mesh number of filter screen is 300 meshes, and powder and material piece are passed through the conveyer pipe and are transmitted to the conical bin, and after filter screen separation material piece and dust, the air-blower bloied to conical bin inside, and the spiral blade receives the influence of wind-force rotatory, makes the powder fall into the bottom in conical bin.
7. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 1, is characterized in that: in step S3, the recovery filter includes collection box, filter screen, discharge valve, shock dynamo and drying apparatus, and the filter screen is fixed to be set up in the inner chamber center department of collection box, and the filter screen contacts with the shock dynamo output, and shock dynamo is fixed to be set up in the outside middle part of collection box, and the drying apparatus is fixed to be set up in the top of collection box, and the discharge valve sets up in the inboard bottom of collection box.
8. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 7, is characterized in that: the mesh number of the filter screen is 300, when a material block falls on the filter screen, the vibration motor drives the filter screen to vibrate together, the dryer dries the material block, the material block begins to be loose after being dried and is smashed by the vibrating filter screen, and the processed powder passes through the filter screen and falls into the discharge valve to be stored.
9. The process for treating and recycling the large cyclone dust with high efficiency and good safety as claimed in claim 1, is characterized in that: in the step S3, the flameless explosion venting device includes a mesh-shaped fire retardant element and a pressure relief device, when the flame generated by the dust explosion inside the recovery filter passes through the mesh-shaped fire retardant element, the mesh-shaped fire retardant element exchanges heat with the flame to cool the high-temperature flame, and the pressure relief device relieves pressure and releases smoke inside the recovery filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101825.2A CN112934554A (en) | 2021-01-26 | 2021-01-26 | Efficient and safe big cyclone dust treatment and recovery process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101825.2A CN112934554A (en) | 2021-01-26 | 2021-01-26 | Efficient and safe big cyclone dust treatment and recovery process |
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| Publication Number | Publication Date |
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| CN112934554A true CN112934554A (en) | 2021-06-11 |
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| CN202110101825.2A Pending CN112934554A (en) | 2021-01-26 | 2021-01-26 | Efficient and safe big cyclone dust treatment and recovery process |
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| US20070231480A1 (en) * | 2006-03-28 | 2007-10-04 | Brother Kogyo Kabushiki Kaisha | Film-forming apparatus, film-forming method and particle-supplying apparatus |
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Application publication date: 20210611 |
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