A ventilation and dust removal system and method for a building aggregate production line

Abstract

The present invention provides a ventilation and dust removal system for a construction aggregate production line, comprising a plurality of dust collectors arranged in a coarse crushing workshop, a mud removal and screening workshop, a semi-finished product area, a medium and fine crushing and shaping workshop, a screening workshop, and a finished product loading area, and three powder silos arranged outside the medium and fine crushing and shaping workshop and the screening workshop. The three powder silos are arranged outside the medium and fine crushing and shaping workshop and the screening workshop. Each dust collector is connected to an air compressor system via a pipeline, which provides air source power and transports dust generated by the production line to the powder silo. A ventilation and dust removal method for the construction aggregate production line is also provided. The present invention systematically arranges the ventilation and dust removal system in each workshop, has a reasonable design, can perform efficient ventilation and dust removal operations throughout the entire process, has low energy consumption, is safe and reliable, and meets environmentally friendly production requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of building material production lines, and in particular to a ventilation and dust removal system and method for a building aggregate production line. Background Art

[0002] Ventilation and dust removal systems are an integral component of industrial and mining operations. They play a crucial role in improving working conditions, protecting the environment, ensuring product quality, and increasing labor productivity. For manufactured sand and gravel production lines, ventilation and dust removal are essential in all dust-generating workshops within the plant, including the coarse crushing workshop, mud removal and screening workshop, medium and fine crushing workshop, vertical shaft shaping workshop, primary and secondary screening workshops, and finished product silos. Due to the varying product requirements and process designs for manufactured sand and gravel, a unique ventilation and dust removal system must be designed for each workshop. For new manufactured sand and gravel production lines in particular, improving existing ventilation and dust removal solutions to establish a more energy-efficient and environmentally friendly ventilation and dust removal system that covers the entire process is crucial, challenging, and crucial. Summary of the Invention

[0003] In order to address the shortcomings of the existing technology, the present invention provides a ventilation and dust removal system for a building aggregate production line. The ventilation and dust removal system is systematically arranged in each workshop, with a reasonable design, and can perform efficient ventilation and dust removal operations throughout the entire process. It also has low energy consumption, is safe and reliable, and meets environmentally friendly production requirements.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0005] A ventilation and dust removal system for a building aggregate production line comprises a plurality of dust collectors arranged in a coarse crushing workshop, a mud removal and screening workshop, a semi-finished product area, a medium and fine crushing and shaping workshop, a screening workshop and a finished product loading area, and three powder silos arranged outside the medium and fine crushing and shaping workshop and the screening workshop. The dust collectors comprise a coarse crushing workshop dust collector, a mud removal and screening workshop dust collector, a medium and fine crushing processing area dust collector, a shaping area dust collector, a first screening area dust collector, a second screening area dust collector and a finished product loading bin dust collector. The three powder silos are arranged outside the medium and fine crushing and shaping workshop and the screening workshop. Each dust collector is connected to an air compressor system through a pipeline. The air compressor system provides air source power and transports the dust generated by the production line to the powder silo. The discharge port of the coarse crushing workshop dust collector is located above the belt conveyor connecting the coarse crushing workshop and the semi-finished product area. The belt conveyor conveys the coarse powder silos to the powder silo. The dust from the dust collector in the crushing workshop is transported to the semi-finished product area; the discharge port of the dust collector in the mud removal screening workshop is located at the entrance of the belt conveyor connecting the mud removal screening workshop and the discarded material area, and the belt conveyor transports the dust from the dust collector in the mud removal screening workshop to the discarded material area; the discharge port of the dust collector in the medium and fine crushing processing area is located above the belt conveyor connecting the medium and fine crushing processing area and the first screening area, and the belt conveyor transports the dust from the dust collector in the medium and fine crushing processing area to the first screening area; the dust collector in the shaping area, the dust collector in the first screening area, and the dust collector in the second screening area are connected to the powder silo through a dust conveying system, and the dust is conveyed to the powder silo by the dust conveying system; the dust collector in the finished product loading silo is located at the top of the finished product loading silo, and the dust is collected by the dust collecting bulk machine at the bottom of the finished product loading silo; a dust collector is provided on the top of each powder silo, and the dust is collected by the dust collecting bulk machine at the bottom of the powder silo.

[0006] The dust conveying system includes a pneumatic conveying system, a first scraper conveying system, and a second scraper conveying system. The pneumatic conveying system is connected to the dust collector in the shaping area and conveys the dust in the shaping area to the third powder silo. The first scraper conveying system is connected to the dust collector in the first screening area and performs dust collection in the first screening area. The second scraper conveying system is connected to the dust collector in the second screening area and performs dust collection in the second screening area. The second scraper conveying system is connected to the first scraper conveying system to transfer dust in the second screening area. The first scraper conveying system simultaneously conveys dust from the first screening area and the second screening area, and then lifts the dust to the first powder silo and the second powder silo through the bucket elevator.

[0007] The coarse crushing workshop is provided with a raw material bin, a heavy-duty rod feeder and a jaw crusher. There are two raw material bins, two heavy-duty rod feeders and two jaw crushers. The raw material bins, the heavy-duty rod feeders and the jaw crushers are connected in sequence. The coarse crushing workshop is connected to the mud removal screen workshop through a first belt conveyor. The coarse crushing workshop is also connected to the semi-finished product material area through a second belt conveyor. Dust removal points are arranged inside the raw material bin, the heavy-duty rod feeder receiving port, the jaw crusher feeding port, the receiving point on the first belt conveyor corresponding to the heavy-duty rod feeder unloading port, and the receiving point on the second belt conveyor corresponding to the jaw crusher unloading port. The dust removal points inside the raw material bin, the heavy-duty rod feeder receiving port and the jaw crusher feeding port adopt a dry mist dust suppression system for dust removal. The dust removal points of the two belt conveyors are connected to the feeding port of the coarse crushing workshop dust collector through pipelines. The discharge point of the coarse crushing workshop dust collector is located above the second belt conveyor.

[0008] The desilting screen workshop is provided with a desilting vibrating screen, and a discarding area is provided outside the desilting screen workshop. The desilting screen workshop is connected to the semi-finished product area through a second belt conveyor. At the same time, the desilting screen workshop is connected to the discarding area through a third belt conveyor. Dust removal points are arranged at the unloading port of the first belt conveyor, the screen surface of the desilting vibrating screen, the receiving point of the second belt conveyor corresponding to the desilting vibrating screen, and the receiving point of the third belt conveyor. Each dust removal point is connected to the feed port of the dust collector in the desilting screen workshop through a pipeline, and the discharge point of the dust collector in the desilting screen workshop is located above the third belt conveyor.

[0009] A fourth belt conveyor connected to the second belt conveyor is arranged above the semi-finished material area, and a discharging trolley is provided on the fourth belt conveyor. A corridor is arranged at the bottom of the semi-finished material area, and multiple first vibrating feeders are evenly arranged in the corridor. A fifth belt conveyor is arranged below the first vibrating feeder. The semi-finished material area is connected to the medium and fine crushing and shaping workshop through the fifth belt conveyor.

[0010] The medium and fine crushing and shaping workshop includes a medium and fine crushing processing area and a shaping area. The medium and fine crushing processing area dust collector and the shaping area dust collector are respectively arranged in the medium and fine crushing processing area and the shaping area. The medium and fine crushing processing area includes a medium crushing buffer bin and a medium crushing cone crusher. The fine crushing processing area includes a fine crushing buffer bin and a fine crushing cone crusher. There are two medium crushing cone crushers and they share a medium crushing buffer bin. There are two fine crushing cone crushers and they share a fine crushing buffer bin. The discharge of the two medium crushing cone crushers is connected to the crusher by a sixth belt conveyor. The first pre-screening machine of a screening zone is connected, and the discharge points of the two fine crushing cone crushers are connected to the second pre-screening machine and the third pre-screening machine of a screening zone through the tenth belt conveyor. Dust removal points are arranged at the discharge port of the fifth belt conveyor, the feeding port of the medium crushing cone crusher, the receiving port of the sixth belt conveyor, the feeding port of the fine crushing cone crusher and the receiving port of the tenth belt conveyor, and each dust removal point is connected to the feeding port of the dust collector of the medium and fine crushing processing area through a pipeline. The dust collector of the medium and fine crushing processing area spans the sixth belt conveyor and the tenth belt conveyor and is provided with discharge points on the sixth belt conveyor and the tenth belt conveyor.

[0011] The shaping area includes a shaping sand making buffer bin and a vertical shaft impact crusher. There are three vertical shaft impact crushers and they share a shaping sand making buffer bin. The shaping sand making buffer bin is provided with a diversion chute for diverting unshaped materials. The shaping sand making buffer bin is connected to the feed port of the vertical shaft impact crusher through the twelfth belt conveyor. The diversion chute of the shaping sand making buffer bin and the discharge port of the vertical shaft impact crusher are both connected to at least one of the thirteenth belt conveyor, the fourteenth belt conveyor and the fifteenth belt conveyor. The thirteenth belt conveyor, the fourteenth belt conveyor and the fifteenth belt conveyor are connected to the second screening area. Dust removal points are arranged at the feed port and discharge port of the twelfth belt conveyor, the feed port and discharge port of the vertical shaft impact crusher, the thirteenth belt conveyor receiving port, the fourteenth belt conveyor receiving port and the fifteenth belt conveyor receiving port, and each dust removal point is connected to the feed port of the shaping area dust collector through a pipeline.

[0012] The screening workshop includes one screening zone and two screening zones. The dust collector of the first screening zone and the dust collector of the second screening zone are respectively arranged outside the first screening zone and the second screening zone. The one screening zone includes a first pre-screening machine, a second pre-screening machine, and a third pre-screening machine arranged in parallel. The three pre-screening machines all include three layers of screens arranged up and down and an unpowered powder selection device is configured at the bottom. The screened materials of the upper screens and the screened materials of the middle screens of the three pre-screening machines are connected to the seventh belt conveyor through the discharging channel, the seventh belt conveyor is connected to the ninth belt conveyor and the ninth belt conveyor is connected to the fine crushing buffer bin, the screened materials of the lower screens of the three pre-screening machines are all connected to the eighth belt conveyor through the discharging channel, the eighth belt conveyor is connected to the eleventh belt conveyor and the eleventh belt conveyor is connected to the shaping machine The sand buffer bin is connected, the unpowered powder selection device under the pre-screening machine is connected to the 21st belt conveyor and the 21st belt conveyor is connected to the finished product warehouse 6, a dust removal point is arranged at the unloading port of the ninth belt conveyor and the dust removal point is connected to the feed port of the dust collector in the medium and fine crushing processing area through a pipeline, a dust removal point is arranged at the unloading port of the eleventh belt conveyor and the dust removal point is connected to the feed port of the dust collector in the shaping area through a pipeline, dust removal points are arranged at the unloading port of the sixth belt conveyor, the unloading port of the tenth belt conveyor, the screen surfaces of the three pre-screening machines, the receiving port of the seventh belt conveyor, the receiving port of the ninth belt conveyor, the receiving port and discharge port of the eighth belt conveyor, the receiving port and discharge port of the eleventh belt conveyor, and the receiving port of the twenty-first belt conveyor, and each dust removal point is connected to the feed port of the dust collector in a screening area through a pipeline.

[0013] The two screening zones are provided with two groups of upper and lower screening machines, totaling six screening machines. The upper group of screening machines and the lower group of screening machines each include three screening machines arranged in parallel, each screening machine includes three layers of screens arranged above and below and an unpowered powder selection device is configured at the bottom. The upper group of screening machines and the lower group of screening machines realize material screening by arranging screens of different apertures. The upper screen of the upper group of screening machines is connected to the sixteenth belt conveyor through the discharging channel, the middle screen is connected to the seventeenth belt conveyor through the discharging channel, the sixteenth belt conveyor and the seventeenth belt conveyor are connected to the finished product warehouse one and the finished product warehouse two respectively, the lower screen material of the upper group of screening machines is connected to the upper screen of the lower group of screening machines through a chute, the lower screen material of the upper group of screening machines is connected to the unpowered powder selection device through the twenty-second belt conveyor, the upper screen material of the lower group of screening machines is connected to the eighteenth belt conveyor through the discharging channel, the middle screen is connected to the The upper material is connected to the nineteenth belt conveyor through the discharging channel, the upper material of the lower screen is connected to the twentieth belt conveyor through the discharging channel, the eighteenth belt conveyor, the nineteenth belt conveyor and the twentieth belt conveyor are connected to the finished product warehouse three, the finished product warehouse four and the finished product warehouse five respectively, the lower screen material of the lower group of screening machines is connected to the unpowered powder selection device through the discharging channel, the unpowered powder selection device at the bottom of the second screening zone is connected to the twenty-first belt conveyor and the twenty-first belt conveyor is connected to the finished product warehouse six, and dust removal points are arranged at the thirteenth belt conveyor unloading port, the fourteenth belt conveyor unloading port, the fifteenth belt conveyor unloading port, the screen surfaces of the upper and lower groups of pre-screening machines, the sixteenth belt conveyor receiving port, the seventeenth belt conveyor receiving port, the twenty-second belt conveyor receiving port, the eighteenth belt conveyor receiving port, the nineteenth belt conveyor receiving port, the twentieth belt conveyor receiving port and the twenty-first receiving port, and each dust removal point is connected to the feed port of the second screening zone dust collector through a pipeline.

[0014] The present invention also provides a ventilation and dust removal method for a construction aggregate production line, comprising performing ventilation and dust removal operations during the construction aggregate production process, wherein an air compressor system provides air source power to a dust collector, and dust from each production workshop is transported through a conveying system and collected in a powder silo for recycling. The method specifically comprises the following steps:

[0015] Ventilation and dust removal in the S1 coarse crushing workshop: Dust removal points are arranged at the discharge points of the two raw material silos, the receiving ports of the two heavy-duty grizzly feeders, and the feeding ports of the two jaw crushers. A dry mist dust suppression system is used for dust removal. Two dust removal points are set on the first belt conveyor corresponding to the discharge ports of the two heavy-duty grizzly feeders, and two dust removal points are set on the second belt conveyor corresponding to the discharge ports of the two jaw crushers. The four dust removal points of the two belt conveyors are connected to the feeding port of the coarse crushing workshop dust collector through pipelines. At the same time, the discharge port of the coarse crushing workshop dust collector is located above the second belt conveyor, which transports the dust from the coarse crushing workshop dust collector to the semi-finished product area.

[0016] Ventilation and dust removal in the S2 desilting and screening workshop: Dust removal points are arranged at the unloading port of the first belt conveyor, the screen surface of the desilting vibrating screen, the receiving point of the second belt conveyor corresponding to the desilting vibrating screen connecting the desilting and screening workshop and the semi-finished product area, and the entrance of the third belt conveyor connecting the desilting and screening workshop and the discard area. Each dust removal point is connected to the feed port of the dust collector in the desilting and screening workshop through a pipeline. The discharge point of the dust collector in the desilting and screening workshop is located on the third belt conveyor, which transports the dust from the dust collector in the desilting and screening workshop to the discard area.

[0017] Ventilation and dust removal in the medium and fine crushing processing area S3: Dust removal points are arranged at the discharge port of the fifth belt conveyor, the feed port of the medium crushing cone crusher, the feed port of the sixth belt conveyor, the feed port of the fine crushing cone crusher, and the feed port of the tenth belt conveyor. Each dust removal point is connected to the feed port of the dust collector in the medium and fine crushing processing area through a pipeline. The dust collector in the medium and fine crushing processing area spans the above two belt conveyors and is equipped with discharge points on both belt conveyors. The above two belt conveyors transport the dust from the dust collector in the medium and fine crushing processing area to the first screening area;

[0018] S4 - Ventilation and dust removal in the screening area: a dust removal point is arranged at the ninth belt conveyor discharge port and is connected to the feed port of the dust collector in the medium and fine crushing processing area through a pipeline; a dust removal point is arranged at the eleventh belt conveyor discharge port and is connected to the feed port of the dust collector in the shaping area through a pipeline; dust removal points are arranged at the sixth belt conveyor discharge port, the tenth belt conveyor discharge port, the screen surfaces of three pre-screening machines, the seventh belt conveyor receiving port, the ninth belt conveyor receiving port, the eighth belt conveyor receiving port and discharge port, the eleventh belt conveyor receiving port, and the twenty-first belt conveyor receiving port, and each dust removal point is connected to the feed port of the first screening area dust collector through a pipeline; the first screening area dust collector is connected to the first scraper conveying system to transport dust in the first screening area; the first scraper conveying system lifts the dust to the first powder silo and the second powder silo through a bucket elevator;

[0019] Ventilation and dust removal in the S5 shaping area: Dust removal points are arranged at the feed and discharge ports of the 12th belt conveyor, the feed and discharge ports of the vertical shaft impact crusher, the feeding ports of the 13th belt conveyor, the feeding ports of the 14th belt conveyor, and the feeding ports of the 15th belt conveyor. Each dust removal point is connected to the feed port of the shaping area dust collector through a pipeline. The shaping area dust collector conveys the dust to the third powder silo through a pneumatic conveying system;

[0020] S6 second screening zone ventilation and dust removal: Dust removal points are arranged at the thirteenth belt conveyor discharge port, the fourteenth belt conveyor discharge port, the fifteenth belt conveyor discharge port, the screen surfaces of the upper and lower pre-screening machines, the sixteenth belt conveyor receiving port, the seventeenth belt conveyor receiving port, the twenty-second belt conveyor receiving port, the eighteenth belt conveyor receiving port, the nineteenth belt conveyor receiving port, the twentieth belt conveyor receiving port, and the twenty-first receiving port, and each dust removal point is connected to the feed port of the second screening zone dust collector through a pipeline, the second screening zone dust collector is connected to the second scraper conveying system, and the second scraper conveying system is connected to the first scraper conveying system to carry out dust transportation for the second screening zone, and the first scraper conveying system lifts the dust of the two screening zones to the first powder silo and the second powder silo through a bucket elevator;

[0021] S7 dust tank ventilation and dust removal: A dust collector is installed on the top of each powder silo, and the dust is collected by the dust collector at the bottom of the powder silo;

[0022] Ventilation and dust removal in S8 finished product loading area: Dust removal points are arranged at the top receiving ports of the six finished product loading bins, and a finished product loading bin dust collector is arranged at each dust removal point. At the same time, a dust removal bulk machine is set at the bottom of the finished product loading bin to collect dust.

[0023] The present invention adopts negative pressure dust removal as the main method and dry mist dust suppression as the auxiliary method. The specific measures include: 1. Dry mist dust suppression is used to reduce dust on the automobile dump bin, jaw crusher feed port and rods; 2. The upper feed port of the medium and fine crusher and the vertical shaft crusher and the discharge port of the feeding equipment are sealed together to extract the dust-containing gas; 3. The receiving point of the belt conveyor is sealed to extract the dust-containing gas; 4. The screen surface of a single vibrating screen is sealed to extract the dust-containing gas; 5. Dust collectors are set on the top of the loading bin and the top of the powder tank, and bulk machines with integrated dust removal are set on the bottom of the loading bin and the powder tank for dust collection; 6. Roads and sites are regularly sprinkled with water trucks to achieve ventilation operations throughout the entire process of the construction aggregate production line, which has the advantages of full coverage, high efficiency, low energy consumption, more environmental protection, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A top view of the ventilation and dust removal system for a construction aggregate production line according to the present invention;

[0025] Figure 2 A top view of the construction aggregate production line (including equipment) of the present invention;

[0026] Figure 3 This is a right side view of the desludging screening workshop, coarse crushing workshop and semi-finished product area of ​​the present invention;

[0027] Figure 4 This is a front view of the semi-finished product area and the medium and fine crushing and shaping workshop of the present invention;

[0028] Figure 5It is a right view of the fine crushing processing area in the fine crushing and shaping workshop and the screening area of ​​the screening workshop in the present invention;

[0029] Figure 6 This is a right view of the shaping area of ​​the fine crushing and shaping workshop and the second screening area of ​​the screening workshop in the present invention;

[0030] Figure 7 This is a front view of the screening workshop and finished product loading area of ​​the present invention.

[0031] In the figure: 1-desilting screening workshop, 2-coarse crushing workshop, 3-semi-finished product area, 4-medium and fine crushing and shaping workshop, 5-medium and fine crushing processing area, 6-shaping area, 7-screening workshop, 8-first screening area, 9-second screening area, 10-finished product loading area, 11-raw material warehouse, 12-heavy rod feeder, 13-jaw crusher, 14-desilting screen, 15-abandoned material area, 16-first belt conveyor, 17-second belt conveyor, 18-third belt conveyor, 19-fourth belt conveyor, 20-unloading trolley, 21-first vibrating feeder, 22-fifth belt conveyor, 23-medium crushing cone crusher, 24-fine crushing buffer bin, 25-fine crushing cone crusher, 26-sixth belt conveyor, 27-tenth belt conveyor, 28-first pre-screening machine, 29-second pre-screening machine, 30-third pre-screening machine, 31-unpowered powder selection device, 32-seventh belt conveyor, 33-ninth belt conveyor, 34-eighth belt conveyor, 35-eleventh belt conveyor, 36- Shaping sand making buffer bin, 37-vertical shaft impact crusher, 38-12th belt conveyor, 39-13th belt conveyor, 40-14th belt conveyor, 41-15th belt conveyor, 42-a group of upper screening machines, 43-a group of lower screening machines, 44-16th belt conveyor, 45-17th belt conveyor, 46-22nd belt conveyor, 47-18th belt conveyor, 48-19th belt conveyor, 49-20th belt conveyor, 50-21st belt conveyor, 51- Product warehouse 1, 52-Finished product warehouse 2, 53-Finished product warehouse 3, 54-Finished product warehouse 4, 55-Finished product warehouse 5, 56-Finished product warehouse 6, 57-Powder silo, 58-Air compression system, 59-Dry mist dust suppression system, 60-Coarse crushing workshop dust collector, 61-Mud removal screening workshop dust collector, 62-Medium and fine crushing processing area dust collector, 63-Shaping area dust collector, 64-First screening area dust collector, 65-Second screening area dust collector, 66-Finished product loading warehouse dust collector, 67-Powder silo dust collector. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and examples.

[0033] like Figure 1-7As shown, a ventilation and dust removal system for a construction aggregate production line includes a coarse crushing workshop dust collector 60, a mud removal screen workshop dust collector 61, a medium and fine crushing processing area dust collector 62, a shaping area dust collector 63, a first screening area dust collector 64, a second screening area dust collector 65, a finished product loading bin dust collector 66 (the dust removal area of ​​each dust collector is represented by a dotted box) and a powder bin 57. The coarse crushing workshop dust collector 60, the mud removal screen workshop dust collector 61, the medium and fine crushing processing area dust collector 62, the shaping area dust collector 63, the first screening area dust collector 64, the second screening area dust collector 65, the finished product loading bin dust collector 66 (the dust removal area of ​​each dust collector is represented by a dotted box) and the powder bin 57. Dust collector 62, shaping area dust collector 63, first screening area dust collector 64, second screening area dust collector 65, finished product loading bin dust collector 66 are set up in correspondence with coarse crushing workshop 2, mud removal screening workshop 1, medium and fine crushing processing area 5, shaping area 6, first screening area 8, second screening area 9 and finished product loading bin. Medium and fine crushing processing area 5 and shaping area 6 are located in medium and fine crushing shaping workshop 4, first screening area 8 and second screening area 9 are located in screening workshop 7, and finished product loading bin has multiple parallel locations. In the finished product loading area 10, the coarse crushing workshop dust collector 60 is arranged outside the coarse crushing workshop 2, the mud removal screening workshop dust collector 61 is arranged outside the mud removal screening workshop 1, the medium and fine crushing processing area dust collector 62 and the shaping area dust collector 63 are arranged in the medium and fine crushing and shaping workshop 4, the first screening area dust collector 64 and the second screening area dust collector 65 are arranged outside the screening workshop 7, there are three powder silos 57 and the 3# powder silo 57 is located outside the medium and fine crushing and shaping workshop 4, the 1# powder silo 57 and the 2# powder silo 57 are located outside the screening workshop 7, each dust collector is connected to the air compression system 58 through a pipeline, and the air compression system 58 provides air source power and transports most of the dust generated by the production line to the powder silo 57. The air compression system 58 adopts an air-cooled screw air compressor, an air storage tank and an air-cooled cold dryer connected in sequence, and the air outlets of the air storage tank and the cold dryer are provided with water and oil removal filters.The discharge port of the dust collector 60 in the coarse crushing workshop is located above the belt conveyor connecting the coarse crushing workshop 2 and the semi-finished product area 3, and the belt conveyor transports the dust from the dust collector 60 in the coarse crushing workshop to the semi-finished product area 3; the discharge port of the dust collector 61 in the mud removal screening workshop is located at the entrance of the belt conveyor connecting the mud removal screening workshop 1 and the discarded material area 15, and the belt conveyor transports the dust from the dust collector 61 in the mud removal screening workshop to the discarded material area 15; the discharge port of the dust collector 62 in the medium and fine crushing processing area is located above the belt conveyor connecting the medium and fine crushing processing area 5 and the first screening area 8, and the belt conveyor transports the dust from the dust collector 62 in the medium and fine crushing processing area to the first screening area 8; the dust collector 63 in the shaping area transports the dust to the 3# powder material through the pneumatic conveying system Bin 57, the first screening zone dust collector 64 is connected to the first scraper conveying system to convey the dust of the first screening zone 8, the second screening zone dust collector 65 is connected to the second scraper conveying system and the second scraper conveying system is connected to the first scraper conveying system to convey the dust of the second screening zone 9, the first scraper conveying system simultaneously conveys the dust of the first screening zone 8 and the second screening zone 9 and lifts the dust to the 1# powder bin 57 and the 2# powder bin 57 through the bucket elevator; the finished product loading bin dust collector 66 is located at the top of the finished product loading bin, and the dust is collected by the dust collecting bulk machine at the bottom of the finished product loading bin; a powder bin dust collector 67 is provided on the top of each powder bin 57, and the dust is collected by the dust collecting bulk machine at the bottom of the powder bin 57.

[0034] The coarse crushing workshop 2 is provided with a raw material warehouse 11, a heavy-duty bar feeder 12, and a jaw crusher 13. There are two raw material warehouses 11, heavy-duty bar feeders 12, and jaw crushers 13. The raw material warehouse 11, heavy-duty bar feeders 12, and jaw crushers 13 are connected in sequence. The coarse crushing workshop 2 is connected to the mud removal screen workshop 1 through a first belt conveyor 16. The coarse crushing workshop 2 is also connected to the semi-finished product material area 3 through a second belt conveyor 17. Inside the raw material warehouse 11, the receiving port of the heavy-duty bar feeder 12, and the jaw crusher 13, the raw material warehouse 11, heavy-duty bar feeder 12, and jaw crusher 13 are connected in sequence. Dust removal points are arranged at the feed port of the crusher 13, the receiving point of the first belt conveyor 16 corresponding to the unloading port of the heavy rod feeder 12, and the receiving point of the second belt conveyor 17 corresponding to the jaw crusher 13. The dust removal points inside the raw material warehouse 11, the receiving port of the heavy rod feeder 12, and the feed port of the jaw crusher 13 adopt a dry mist dust suppression system 59 for dust removal. The dust removal points of the two belt conveyors are connected to the feed port of the dust collector 60 in the coarse crushing workshop through pipelines, and the discharge point of the dust collector 60 in the coarse crushing workshop is located above the second belt conveyor 17.

[0035] Furthermore, 10 dust removal points are formed at the discharge points of the two raw material bins 11 (car discharge bins), the receiving ports of the two heavy-duty rod feeders 12, the feeding ports of the two jaw crushers 13, the two receiving points of the first belt conveyor 16 corresponding to the discharge ports of the two heavy-duty rod feeders 12, and the two receiving points of the second belt conveyor 17 corresponding to the two jaw crushers 13. Among them, the six dust removal points of the discharge point of the raw material bin 11 (car discharge bins), the receiving ports of the heavy-duty rod feeders 12, and the feeding ports of the jaw crushers 13 are dusted by the dry mist dust suppression system 59. The four dust removal points are formed by the receiving points of the first belt conveyor 16 corresponding to the discharge ports of the two heavy-duty rod feeders 12 and the receiving points of the second belt conveyor 17 corresponding to the two jaw crushers 13, and two high-efficiency pulse bag dust collectors are selected for dust removal.

[0036] The desilting screen workshop 1 is provided with a desilting vibrating screen, and a discarding area 15 is provided outside the desilting screen workshop 1. The desilting screen workshop 1 is connected to the semi-finished product area 3 through a second belt conveyor 17. At the same time, the desilting screen workshop 1 is connected to the discarding area 15 through a third belt conveyor 18. Dust removal points are arranged at the unloading port of the first belt conveyor 16, the screen surface of the desilting vibrating screen, the receiving point of the second belt conveyor 17 corresponding to the desilting vibrating screen, and the receiving point of the third belt conveyor 18. Each dust removal point is connected to the feed port of the dust collector 61 of the desilting screen workshop through a pipeline, and the discharge point of the dust collector 61 of the desilting screen workshop is located above the third belt conveyor 18.

[0037] Furthermore, four dust removal points are formed by the discharge port of the first belt conveyor 16, the receiving point of the mud removal vibrating screen, the receiving point of the second belt conveyor 17 corresponding to the mud removal vibrating screen, and the receiving point of the third belt conveyor 18, and a high-efficiency pulse bag dust collector is selected for dust removal.

[0038] A fourth belt conveyor 19 connected to the second belt conveyor 17 is arranged above the semi-finished material area 3, and a discharge trolley 20 is arranged on the fourth belt conveyor 19. A corridor is arranged at the bottom of the semi-finished material area 3, and multiple first vibrating feeders 21 are evenly arranged in the corridor. A fifth belt conveyor 22 is arranged below the first vibrating feeder 21. The semi-finished material area 3 is connected to the medium and fine crushing and shaping workshop 4 through the fifth belt conveyor 22.

[0039] The medium and fine crushing and shaping workshop 4 includes a medium and fine crushing processing area 5 and a shaping area 6. The medium and fine crushing processing area dust collector 62 and the shaping area dust collector 63 are respectively arranged in the medium and fine crushing processing area 5 and the shaping area 6. The medium and fine crushing processing area 5 includes a medium crushing processing area and a fine crushing processing area. The medium crushing processing area includes a medium crushing buffer bin and a medium crushing cone crusher 23. The fine crushing processing area includes a fine crushing buffer bin 24 and a fine crushing cone crusher 25. The medium crushing cone crusher 23 has two and shares a medium crushing buffer bin. The fine crushing cone crusher 25 has two and shares a fine crushing buffer bin 24. The discharge of the two medium crushing cone crushers 23 is connected to a screening area through a sixth belt conveyor 26. The first pre-screening machine 28 of the medium crushing cone crusher 8 is connected, and the discharge points of the two fine crushing cone crushers 25 are connected to the second pre-screening machine 29 and the third pre-screening machine 30 of the first screening area 8 through the tenth belt conveyor 27. Dust removal points are arranged at the discharge port of the fifth belt conveyor 22, the feeding port of the medium crushing cone crusher 23, the receiving port of the sixth belt conveyor 26, the feeding port of the fine crushing cone crusher 25, and the receiving port of the tenth belt conveyor 27, and each dust removal point is connected to the feeding port of the dust collector 62 in the medium and fine crushing processing area through a pipeline. The dust collector 62 in the medium and fine crushing processing area spans the sixth belt conveyor 26 and the tenth belt conveyor 27 and is provided with discharge points on the sixth belt conveyor 26 and the tenth belt conveyor 27.

[0040] Furthermore, nine dust removal points are formed at the discharge port of the fifth belt conveyor 22, the feed port of two medium crushing cone crushers 23, the two receiving ports at the discharge of the two medium crushing cone crushers 23 corresponding to the sixth belt conveyor 26, the feed port of two fine crushing cone crushers 25, and the two receiving ports at the discharge of the two fine crushing cone crushers 25 corresponding to the tenth belt conveyor 27, and two high-efficiency pulse bag dust collectors are selected for dust removal.

[0041] The shaping area 6 includes a shaping sand buffer bin 36 and a vertical shaft impact crusher 37. There are three vertical shaft impact crushers 37 and they share one shaping sand buffer bin 36. The shaping sand buffer bin 36 is provided with a chute for diverting unshaped materials. The shaping sand buffer bin 36 is connected to the feed port of the vertical shaft impact crusher 37 through the twelfth belt conveyor 38. The chute of the shaping sand buffer bin 36 and the discharge port of the vertical shaft impact crusher 37 are both connected to the thirteenth belt conveyor 39 and the thirteenth belt conveyor 39. At least one of the fourteenth belt conveyor 40 and the fifteenth belt conveyor 41 is connected, the thirteenth belt conveyor 39, the fourteenth belt conveyor 40, and the fifteenth belt conveyor 41 are connected to the second screening area 9, and dust removal points are arranged at the feed port and discharge port of the twelfth belt conveyor 38, the feed port and discharge port of the vertical shaft impact crusher 37, the receiving port of the thirteenth belt conveyor 39, the receiving port of the fourteenth belt conveyor 40, and the receiving port of the fifteenth belt conveyor 41, and each dust removal point is connected to the feed port of the shaping area dust collector 63 through a pipeline.

[0042] Furthermore, 11 dust removal points are formed at the feed and discharge ports of the twelfth belt conveyor 38, the feed ports of the three vertical shaft impact crushers 37, the discharge ports of the three vertical shaft impact crushers 37, the receiving port of the thirteenth belt conveyor 39, the receiving port of the fourteenth belt conveyor 40, and the receiving port of the fifteenth belt conveyor 41, and two high-efficiency pulse bag dust collectors are selected for dust removal.

[0043] The screening workshop 7 includes a first screening zone 8 and a second screening zone 9. The first screening zone dust collector 64 and the second screening zone dust collector 65 are respectively arranged outside the first screening zone 8 and the second screening zone 9. The first screening zone 8 includes a first pre-screening machine 28, a second pre-screening machine 29, and a third pre-screening machine 30 arranged in parallel. The three pre-screening machines all include three layers of screens arranged up and down and an unpowered powder selection device 31 is configured at the bottom. The screened materials of the upper screens and the middle screens of the three pre-screening machines are connected to the seventh belt conveyor 32 through the discharging channel, the seventh belt conveyor 32 is connected to the ninth belt conveyor 33, and the ninth belt conveyor 33 is connected to the fine crushing buffer bin 24. The screened materials of the lower screens of the three pre-screening machines are all connected to the eighth belt conveyor 34 through the discharging channel, the eighth belt conveyor 34 is connected to the eleventh belt conveyor 35, and the eleventh belt conveyor 35 is connected to the shaping The sand making buffer bin 36 is connected, the unpowered powder selection device 31 below the pre-screening machine is connected to the twenty-first belt conveyor 50 and the twenty-first belt conveyor 50 is connected to the finished product warehouse six 56, a dust removal point is arranged at the unloading port of the ninth belt conveyor 33 and the dust removal point is connected to the feed port of the dust collector 62 in the medium and fine crushing processing area through a pipeline, a dust removal point is arranged at the unloading port of the eleventh belt conveyor 35 and the dust removal point is connected to the feed port of the dust collector 63 in the shaping area through a pipeline, a dust removal point is arranged at the unloading port of the sixth belt conveyor 26, the unloading port of the tenth belt conveyor 27, the screen surface of the three pre-screening machines, the receiving port of the seventh belt conveyor 32, the receiving port of the ninth belt conveyor 33, the receiving port and discharge port of the eighth belt conveyor 34, the receiving port of the eleventh belt conveyor 35 and the receiving port of the twenty-first belt conveyor 50, and each dust removal point is connected to the feed port of a screening area dust collector 64 through a pipeline.

[0044] Furthermore, one dust removal point at the discharge port of the ninth belt conveyor 33 is connected to the high-efficiency pulse bag dust collector of the medium and fine crushing processing area 5 through a pipeline for dust removal treatment. At this time, the two high-efficiency pulse bag dust collectors in the medium and fine crushing processing area 5 treat a total of 10 dust removal points. One dust removal point at the discharge port of the eleventh belt conveyor 35 is connected to the high-efficiency pulse bag dust collector of the medium and fine crushing processing area 5 through a pipeline for dust removal treatment. At this time, the two high-efficiency pulse bag dust collectors in the shaping area 6 treat a total of 12 dust removal points. At the discharge port of the sixth belt conveyor 26, The unloading port of the tenth belt conveyor 27, the three screen receiving points of the three pre-screening machines, the three receiving ports of the seventh belt conveyor 32 corresponding to the three pre-screening machines, the receiving port of the ninth belt conveyor 33, the three receiving ports of the eighth belt conveyor 34 corresponding to the three pre-screening machines, the eighth belt conveyor 34 corresponding to one unloading port of the eleventh belt conveyor 35, the receiving port of the eleventh belt conveyor 35, and the three receiving ports of the twenty-first belt conveyor 50 corresponding to the three pre-screening machines form 17 dust removal points and three high-efficiency pulse bag dust collectors are selected for dust removal.

[0045] The second screening zone 9 is provided with two groups of upper and lower screening machines, a total of six screening machines. The upper group of screening machines 42 and the lower group of screening machines 43 each include three screening machines arranged in parallel. Each screening machine includes three layers of screens arranged upper and lower and an unpowered powder selection device 31 is configured at the bottom. The upper group of screening machines 42 and the lower group of screening machines 43 realize material screening by setting screens of different apertures. The upper screen of the upper group of screening machines 42 is connected to the sixteenth belt conveyor 44 through the discharge channel, and the middle screen is connected to the sixteenth belt conveyor 44 through the discharge channel. The 16th and 17th belt conveyors 44 and 45 are connected to the finished product warehouse 1 51 and the finished product warehouse 2 52 respectively. The upper screen material of the upper group of screening machines 42 is connected to the upper screen of the lower group of screening machines 43 through the chute. The lower screen material of the upper group of screening machines 42 is connected to the unpowered powder selection device 31 through the 22nd belt conveyor 46. The upper screen material of the lower group of screening machines 43 is connected to the 18th belt conveyor 47 through the discharge channel. The middle screen material is connected to the discharge channel. The material channel is connected to the 19th belt conveyor 48, the upper material of the lower screen is connected to the 20th belt conveyor 49 through the discharge channel, the 18th belt conveyor 47, the 19th belt conveyor 48, and the 20th belt conveyor 49 are respectively connected to the finished product warehouse 3 53, the finished product warehouse 4 54, and the finished product warehouse 5 55. The lower screen material of the lower group of screening machines 43 is connected to the unpowered powder selection device 31 through the discharge channel. The unpowered powder selection device 31 at the bottom of the second screening area 9 is connected to the 21st belt conveyor 50 and the 21st belt conveyor 50 is connected to the finished product warehouse 6. 56 is connected, and dust removal points are arranged at the unloading port of the thirteenth belt conveyor 39, the unloading port of the fourteenth belt conveyor 40, the unloading port of the fifteenth belt conveyor 41, the screen surfaces of the upper and lower groups of pre-screening machines, the receiving port of the sixteenth belt conveyor 44, the receiving port of the seventeenth belt conveyor 45, the receiving port of the twenty-second belt conveyor 46, the receiving port of the eighteenth belt conveyor 47, the receiving port of the nineteenth belt conveyor 48, the receiving port of the twentieth belt conveyor 49 and the twenty-first receiving port, and each dust removal point is connected to the feed port of the second screening zone dust collector 65 through a pipeline.

[0046] Furthermore, at the discharge port of the thirteenth belt conveyor 39, the discharge port of the fourteenth belt conveyor 40, the discharge port of the fifteenth belt conveyor 41, the three screen surface receiving points of the upper group of three screening machines, the sixteenth belt conveyor 44 corresponding to the three receiving ports of the upper group of three screening machines, the seventeenth belt conveyor 45 corresponding to the three receiving ports of the upper group of three screening machines, the twenty-second belt conveyor 46 corresponding to the three receiving ports of the upper group of three screening machines, the eighteenth belt conveyor 47 corresponding to the three receiving ports of the lower group of three screening machines, the nineteenth belt conveyor 48 corresponding to the three receiving ports of the lower group of three screening machines, the twentieth belt conveyor 49 corresponding to the three receiving ports of the lower group of three screening machines, and the twenty-first belt conveyor 50 corresponding to the three receiving ports of the lower group of three screening machines, a total of 21 dust removal points are formed, and three high-efficiency pulse bag dust collectors are used for dust removal at these 21 dust removal points.

[0047] The finished product loading area 10 includes six finished product warehouses, each of which is equipped with a finished product loading warehouse. The receiving ports of the six finished product loading warehouses and the receiving ports of the three powder silos 57 are all equipped with dust removal points, and each dust removal point (a total of 9) is equipped with a high-efficiency pulse bag dust collector for dust removal.

[0048] The present invention also provides a ventilation and dust removal method for a construction aggregate production line, comprising performing ventilation and dust removal operations during the construction aggregate production process, wherein an air compressor system 58 provides air source power for a dust collector, and dust from each production workshop is transported through a conveying system and collected in a powder silo 57 for recycling. The method specifically comprises the following steps:

[0049] Ventilation and dust removal in S1 coarse crushing workshop 2: Dust removal points are arranged at the discharge of the two raw material bins 11, the receiving ports of the two heavy-duty grizzly feeders 12, and the feeding ports of the two jaw crushers 13. A dry mist dust suppression system 59 is used for dust removal. Two dust removal points are set on the first belt conveyor 16 corresponding to the discharge ports of the two heavy-duty grizzly feeders 12, and two dust removal points are set on the second belt conveyor 17 corresponding to the discharge ports of the two jaw crushers 13. The four dust removal points of the two belt conveyors are connected to the feeding port of the coarse crushing workshop dust collector 60 through pipelines. At the same time, the second belt conveyor 17 is placed above the discharge port of the coarse crushing workshop dust collector 60. The second belt conveyor 17 transports the dust from the coarse crushing workshop dust collector 60 to the semi-finished product area 3.

[0050] Ventilation and dust removal in S2 desilting and screening workshop 1: Dust removal points are arranged at the discharge port of the first belt conveyor 16, the screen surface of the desilting vibrating screen, the receiving point of the second belt conveyor 17 corresponding to the desilting vibrating screen connecting the desilting and screening workshop 1 and the semi-finished product material area 3, and the entrance of the third belt conveyor 18. Each dust removal point is connected to the feed port of the dust collector 61 in the desilting and screening workshop through a pipeline. The discharge point of the dust collector 61 in the desilting and screening workshop is located on the third belt conveyor 18, and the third belt conveyor 18 transports the dust from the dust collector 61 in the desilting and screening workshop to the discarding area 15;

[0051] S3 Ventilation and dust removal in the medium and fine crushing processing area 5: Dust removal points are arranged at the discharge port of the fifth belt conveyor 22, the feed port of the medium crushing cone crusher 23, the receiving port of the sixth belt conveyor 26, the feed port of the fine crushing cone crusher 25, and the receiving port of the tenth belt conveyor 27. Each dust removal point is connected to the feed port of the dust collector 62 in the medium and fine crushing processing area through a pipeline. The dust collector 62 in the medium and fine crushing processing area spans the above two belt conveyors and is equipped with a discharge point on both belt conveyors. The dust from the dust collector 62 in the medium and fine crushing processing area is transported to a screening area 8 by the above two belt conveyors;

[0052] S4-Screening Zone 8 Ventilation and Dust Removal: A dust removal point is arranged at the discharge port of the ninth belt conveyor 33 and is connected to the feed port of the dust collector 62 in the medium and fine crushing processing zone through a pipeline. A dust removal point is arranged at the discharge port of the eleventh belt conveyor 35 and is connected to the feed port of the dust collector 63 in the shaping zone through a pipeline. The discharge port of the sixth belt conveyor 26, the discharge port of the tenth belt conveyor 27, the screen surface of the three pre-screening machines, the receiving port of the seventh belt conveyor 32, the ninth belt conveyor The receiving port of the belt conveyor 33, the receiving port and discharge port of the eighth belt conveyor 34, the receiving port of the eleventh belt conveyor 35, and the receiving port of the twenty-first belt conveyor 50 are all provided with dust removal points, and each dust removal point is connected to the feed port of the first screening zone dust collector 64 via a pipeline. The first screening zone dust collector 64 is connected to the first scraper conveying system to convey the dust of the first screening zone 8. The first scraper conveying system lifts the dust to the first powder silo 57 and the second powder silo 57 via a bucket elevator.

[0053] S5 Shaping Area 6 Ventilation and Dust Removal: Dust removal points are arranged at the feed and discharge ports of the 12th belt conveyor 38, the feed and discharge ports of the vertical shaft impact crusher 37, the receiving port of the 13th belt conveyor 39, the receiving port of the 14th belt conveyor 40, and the receiving port of the 15th belt conveyor 41. Each dust removal point is connected to the feed port of the shaping area dust collector 63 through a pipeline. The shaping area dust collector 63 conveys dust to the third powder silo 57 through a pneumatic conveying system;

[0054] S6 Ventilation and dust removal of the second screening zone 9: Dust removal points are arranged at the discharge port of the thirteenth belt conveyor 39, the discharge port of the fourteenth belt conveyor 40, the discharge port of the fifteenth belt conveyor 41, the screen surfaces of the upper and lower pre-screening machines, the receiving port of the sixteenth belt conveyor 44, the receiving port of the seventeenth belt conveyor 45, the receiving port of the twenty-second belt conveyor 46, the receiving port of the eighteenth belt conveyor 47, the receiving port of the nineteenth belt conveyor 48, the receiving port of the twentieth belt conveyor 49, and the receiving port of the twenty-first belt conveyor, and each dust removal point is connected to the feed port of the second screening zone dust collector 65 through a pipeline, the second screening zone dust collector 65 is connected to the second scraper conveying system, and the second scraper conveying system is connected to the first scraper conveying system to carry out dust transportation for the second screening zone 9, and the first scraper conveying system lifts the dust of the two screening zones to the first powder bin 57 and the second powder bin 57 through a bucket elevator;

[0055] S7 Dust Tank Ventilation and Dust Removal: A powder silo dust collector 67 is installed on the top of each powder silo 57, and the dust is collected by the dust collector at the bottom of the powder silo 57;

[0056] S8 finished product loading area 10 ventilation and dust removal: Dust removal points are arranged at the top receiving ports of the six finished product loading bins and a finished product loading bin dust collector 66 is arranged at each dust removal point. At the same time, a dust removal bulk machine is set at the bottom of the finished product loading bin to collect dust.

[0057] It should be noted that the above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Equivalent modifications made based on the above embodiments fall within the scope of protection of the present invention.

Claims

1. A ventilation and dust removal system for a building aggregate production line, characterized by: It includes multiple dust collectors arranged in the coarse crushing workshop, mud removal and screening workshop, semi-finished product area, medium and fine crushing and shaping workshop, screening workshop and finished product loading area, and three powder silos arranged outside the medium and fine crushing and shaping workshop and the screening workshop. The dust collector includes the coarse crushing workshop dust collector, the mud removal and screening workshop dust collector, the medium and fine crushing processing area dust collector, the shaping area dust collector, the first screening area dust collector, the second screening area dust collector and the finished product loading bin dust collector. The three powder silos are arranged outside the medium and fine crushing and shaping workshop and the screening workshop. Each dust collector is connected to the air compressor system through a pipeline. The air compressor system provides air power and transports the dust generated by the production line to the powder silo; the discharge port of the coarse crushing workshop dust collector is located above the belt conveyor connecting the coarse crushing workshop and the semi-finished product area, and the belt conveyor transports the powder from the coarse crushing workshop dust collector The dust is transported to the semi-finished product area; the discharge port of the dust collector in the mud removal and screening workshop is located at the entrance of the belt conveyor connecting the mud removal and screening workshop and the discarded material area, and the belt conveyor transports the dust from the dust collector in the mud removal and screening workshop to the discarded material area; the discharge port of the dust collector in the medium and fine crushing processing area is located above the belt conveyor connecting the medium and fine crushing processing area and the first screening area, and the belt conveyor transports the dust from the dust collector in the medium and fine crushing processing area to the first screening area; the dust collector in the shaping area, the dust collector in the first screening area, and the dust collector in the second screening area are connected to the powder silo through a dust conveying system, and the dust is transported to the powder silo by the dust conveying system; the dust collector in the finished product loading silo is located at the top of the finished product loading silo, and the dust is collected by the dust collecting bulk machine at the bottom of the finished product loading silo; a dust collector is provided on the top of each powder silo, and the dust is collected by the dust collecting bulk machine at the bottom of the powder silo; The dust conveying system includes a pneumatic conveying system, a first scraper conveying system, and a second scraper conveying system. The pneumatic conveying system is connected to the dust collector in the shaping area and conveys the dust in the shaping area to the third powder silo. The first scraper conveying system is connected to the dust collector in the first screening area and conveys the dust in the first screening area. The second scraper conveying system is connected to the dust collector in the second screening area and conveys the dust in the second screening area. The second scraper conveying system is connected to the first scraper conveying system to convey the dust in the second screening area. The first scraper conveying system simultaneously conveys the dust in the first screening area and the second screening area, and then lifts the dust to the first powder silo and the second powder silo through the bucket elevator.

2. The ventilation and dust removal system for a construction aggregate production line according to claim 1, characterized in that: The coarse crushing workshop is provided with a raw material bin, a heavy-duty rod feeder and a jaw crusher. There are two raw material bins, two heavy-duty rod feeders and two jaw crushers. The raw material bins, the heavy-duty rod feeders and the jaw crushers are connected in sequence. The coarse crushing workshop is connected to the mud removal screen workshop through a first belt conveyor. The coarse crushing workshop is also connected to the semi-finished product material area through a second belt conveyor. Dust removal points are arranged inside the raw material bin, the heavy-duty rod feeder receiving port, the jaw crusher feeding port, the receiving point on the first belt conveyor corresponding to the heavy-duty rod feeder unloading port, and the receiving point on the second belt conveyor corresponding to the jaw crusher unloading port. The dust removal points inside the raw material bin, the heavy-duty rod feeder receiving port and the jaw crusher feeding port adopt a dry mist dust suppression system for dust removal. The dust removal points of the two belt conveyors are connected to the feeding port of the coarse crushing workshop dust collector through pipelines. The discharge point of the coarse crushing workshop dust collector is located above the second belt conveyor.

3. The ventilation and dust removal system for a construction aggregate production line according to claim 2, characterized in that: The desilting screen workshop is provided with a desilting vibrating screen, and a discarding area is provided outside the desilting screen workshop. The desilting screen workshop is connected to the semi-finished product area through a second belt conveyor. At the same time, the desilting screen workshop is connected to the discarding area through a third belt conveyor. Dust removal points are arranged at the unloading port of the first belt conveyor, the screen surface of the desilting vibrating screen, the receiving point of the second belt conveyor corresponding to the desilting vibrating screen, and the receiving point of the third belt conveyor. Each dust removal point is connected to the feed port of the dust collector in the desilting screen workshop through a pipeline, and the discharge point of the dust collector in the desilting screen workshop is located above the third belt conveyor.

4. The ventilation and dust removal system for a construction aggregate production line according to claim 3 is characterized in that: A fourth belt conveyor connected to the second belt conveyor is arranged above the semi-finished material area, and a discharging trolley is provided on the fourth belt conveyor. A corridor is arranged at the bottom of the semi-finished material area, and multiple first vibrating feeders are evenly arranged in the corridor. A fifth belt conveyor is arranged below the first vibrating feeder. The semi-finished material area is connected to the medium and fine crushing and shaping workshop through the fifth belt conveyor.

5. The ventilation and dust removal system for a construction aggregate production line according to claim 4, characterized in that: The medium and fine crushing and shaping workshop includes a medium and fine crushing processing area and a shaping area. The medium and fine crushing processing area dust collector and the shaping area dust collector are respectively arranged in the medium and fine crushing processing area and the shaping area. The medium and fine crushing processing area includes a medium crushing buffer bin and a medium crushing cone crusher. The fine crushing processing area includes a fine crushing buffer bin and a fine crushing cone crusher. There are two medium crushing cone crushers and they share a medium crushing buffer bin. There are two fine crushing cone crushers and they share a fine crushing buffer bin. The discharge of the two medium crushing cone crushers is connected to the crusher by a sixth belt conveyor. The first pre-screening machine of a screening zone is connected, and the discharge points of the two fine crushing cone crushers are connected to the second pre-screening machine and the third pre-screening machine of a screening zone through the tenth belt conveyor. Dust removal points are arranged at the discharge port of the fifth belt conveyor, the feeding port of the medium crushing cone crusher, the receiving port of the sixth belt conveyor, the feeding port of the fine crushing cone crusher and the receiving port of the tenth belt conveyor, and each dust removal point is connected to the feeding port of the dust collector of the medium and fine crushing processing area through a pipeline. The dust collector of the medium and fine crushing processing area spans the sixth belt conveyor and the tenth belt conveyor and is provided with discharge points on the sixth belt conveyor and the tenth belt conveyor.

6. The ventilation and dust removal system for a construction aggregate production line according to claim 5, characterized in that: The shaping area includes a shaping sand making buffer bin and a vertical shaft impact crusher. There are three vertical shaft impact crushers and they share a shaping sand making buffer bin. The shaping sand making buffer bin is provided with a diversion chute for diverting unshaped materials. The shaping sand making buffer bin is connected to the feed port of the vertical shaft impact crusher through the twelfth belt conveyor. The diversion chute of the shaping sand making buffer bin and the discharge port of the vertical shaft impact crusher are both connected to at least one of the thirteenth belt conveyor, the fourteenth belt conveyor and the fifteenth belt conveyor. The thirteenth belt conveyor, the fourteenth belt conveyor and the fifteenth belt conveyor are connected to the second screening area. Dust removal points are arranged at the feed port and discharge port of the twelfth belt conveyor, the feed port and discharge port of the vertical shaft impact crusher, the thirteenth belt conveyor receiving port, the fourteenth belt conveyor receiving port and the fifteenth belt conveyor receiving port, and each dust removal point is connected to the feed port of the shaping area dust collector through a pipeline.

7. The ventilation and dust removal system for a construction aggregate production line according to claim 6, characterized in that: The screening workshop includes one screening zone and two screening zones. The dust collector of the first screening zone and the dust collector of the second screening zone are respectively arranged outside the first screening zone and the second screening zone. The one screening zone includes a first pre-screening machine, a second pre-screening machine, and a third pre-screening machine arranged in parallel. The three pre-screening machines all include three layers of screens arranged up and down and an unpowered powder selection device is configured at the bottom. The screened materials of the upper screens and the screened materials of the middle screens of the three pre-screening machines are connected to the seventh belt conveyor through the discharging channel, the seventh belt conveyor is connected to the ninth belt conveyor and the ninth belt conveyor is connected to the fine crushing buffer bin, the screened materials of the lower screens of the three pre-screening machines are all connected to the eighth belt conveyor through the discharging channel, the eighth belt conveyor is connected to the eleventh belt conveyor and the eleventh belt conveyor is connected to the shaping machine The sand buffer bin is connected, the unpowered powder selection device under the pre-screening machine is connected to the 21st belt conveyor and the 21st belt conveyor is connected to the finished product warehouse 6, a dust removal point is arranged at the unloading port of the ninth belt conveyor and the dust removal point is connected to the feed port of the dust collector in the medium and fine crushing processing area through a pipeline, a dust removal point is arranged at the unloading port of the eleventh belt conveyor and the dust removal point is connected to the feed port of the dust collector in the shaping area through a pipeline, dust removal points are arranged at the unloading port of the sixth belt conveyor, the unloading port of the tenth belt conveyor, the screen surfaces of the three pre-screening machines, the receiving port of the seventh belt conveyor, the receiving port of the ninth belt conveyor, the receiving port and discharge port of the eighth belt conveyor, the receiving port and discharge port of the eleventh belt conveyor, and the receiving port of the twenty-first belt conveyor, and each dust removal point is connected to the feed port of the dust collector in a screening area through a pipeline.

8. The ventilation and dust removal system for a construction aggregate production line according to claim 7, characterized in that: The two screening zones are provided with two groups of upper and lower screening machines, totaling six screening machines. The upper group of screening machines and the lower group of screening machines each include three screening machines arranged in parallel, each screening machine includes three layers of screens arranged above and below and an unpowered powder selection device is configured at the bottom. The upper group of screening machines and the lower group of screening machines realize material screening by arranging screens of different apertures. The upper screen of the upper group of screening machines is connected to the sixteenth belt conveyor through the discharging channel, the middle screen is connected to the seventeenth belt conveyor through the discharging channel, the sixteenth belt conveyor and the seventeenth belt conveyor are connected to the finished product warehouse one and the finished product warehouse two respectively, the lower screen material of the upper group of screening machines is connected to the upper screen of the lower group of screening machines through a chute, the lower screen material of the upper group of screening machines is connected to the unpowered powder selection device through the twenty-second belt conveyor, the upper screen material of the lower group of screening machines is connected to the eighteenth belt conveyor through the discharging channel, the middle screen is connected to the The upper material is connected to the nineteenth belt conveyor through the discharging channel, the upper material of the lower screen is connected to the twentieth belt conveyor through the discharging channel, the eighteenth belt conveyor, the nineteenth belt conveyor and the twentieth belt conveyor are connected to the finished product warehouse three, the finished product warehouse four and the finished product warehouse five respectively, the lower screen material of the lower group of screening machines is connected to the unpowered powder selection device through the discharging channel, the unpowered powder selection device at the bottom of the second screening zone is connected to the twenty-first belt conveyor and the twenty-first belt conveyor is connected to the finished product warehouse six, and dust removal points are arranged at the thirteenth belt conveyor unloading port, the fourteenth belt conveyor unloading port, the fifteenth belt conveyor unloading port, the screen surfaces of the upper and lower groups of pre-screening machines, the sixteenth belt conveyor receiving port, the seventeenth belt conveyor receiving port, the twenty-second belt conveyor receiving port, the eighteenth belt conveyor receiving port, the nineteenth belt conveyor receiving port, the twentieth belt conveyor receiving port and the twenty-first receiving port, and each dust removal point is connected to the feed port of the second screening zone dust collector through a pipeline.

9. A ventilation and dust removal method for a construction aggregate production line, using a ventilation and dust removal system for a construction aggregate production line as claimed in claim 8, comprising performing ventilation and dust removal operations during the construction aggregate production process, wherein an air compressor system provides air source power to a dust collector, and dust from each production workshop is transported through a conveying system and collected in a powder silo for recycling, characterized in that: The specific steps include: S1 Ventilation and dust removal in the coarse crushing workshop: Dust removal points are arranged at the discharge points of the two raw material silos, the receiving ports of the two heavy-duty grizzly feeders, and the feeding ports of the two jaw crushers. A dry mist dust suppression system is used for dust removal. Two dust removal points are set up on the first belt conveyor corresponding to the discharge ports of the two heavy-duty grizzly feeders, and two dust removal points are set up on the second belt conveyor corresponding to the discharge ports of the two jaw crushers. The four dust removal points of the two belt conveyors are connected to the feeding port of the coarse crushing workshop dust collector through pipelines. At the same time, the discharge port of the coarse crushing workshop dust collector is located above the second belt conveyor, which transports the dust from the coarse crushing workshop dust collector to the semi-finished product area. Ventilation and dust removal in the S2 desilting and screening workshop: Dust removal points are arranged at the unloading port of the first belt conveyor, the screen surface of the desilting vibrating screen, the feeding point of the second belt conveyor corresponding to the desilting vibrating screen connecting the desilting and screening workshop and the semi-finished product area, and the entrance of the third belt conveyor connecting the desilting and screening workshop and the discard area. Each dust removal point is connected to the feeding port of the dust collector in the desilting and screening workshop through a pipeline. The discharge point of the dust collector in the desilting and screening workshop is located on the third belt conveyor, which transports the dust from the dust collector in the desilting and screening workshop to the discard area. S3 Ventilation and dust removal in the medium and fine crushing processing area: Dust removal points are arranged at the discharge port of the fifth belt conveyor, the feed port of the medium crushing cone crusher, the receiving port of the sixth belt conveyor, the feed port of the fine crushing cone crusher, and the receiving port of the tenth belt conveyor. Each dust removal point is connected to the feed port of the dust collector in the medium and fine crushing processing area through a pipeline. The dust collector in the medium and fine crushing processing area is placed across the sixth and tenth belt conveyors, and discharge points are arranged on the sixth and tenth belt conveyors. The dust in the dust collector in the medium and fine crushing processing area is transported to the first screening area by the sixth and tenth belt conveyors; S4 Ventilation and dust removal in the first screening zone: a dust removal point is arranged at the discharge port of the ninth belt conveyor and is connected to the feed port of the dust collector in the medium and fine crushing processing zone through a pipeline. A dust removal point is arranged at the discharge port of the eleventh belt conveyor and is connected to the feed port of the dust collector in the shaping zone through a pipeline. Dust removal points are arranged at the discharge port of the sixth belt conveyor, the discharge port of the tenth belt conveyor, the screen surfaces of three pre-screening machines, the receiving port of the seventh belt conveyor, the receiving port of the ninth belt conveyor, the receiving port and discharge port of the eighth belt conveyor, the receiving port of the eleventh belt conveyor, and the receiving port of the twenty-first belt conveyor, and each dust removal point is connected to the feed port of the dust collector in the first screening zone through a pipeline. The dust collector in the first screening zone is connected to the first scraper conveying system to transport dust in the first screening zone. The first scraper conveying system lifts the dust to the first powder silo and the second powder silo through a bucket elevator. S5 Shaping Area Ventilation and Dust Removal: Dust removal points are arranged at the feed and discharge ports of the 12th belt conveyor, the feed and discharge ports of the vertical shaft impact crusher, and the receiving ports of the 13th, 14th, and 15th belt conveyors. Each dust removal point is connected to the feed port of the shaping area dust collector through a pipeline. The shaping area dust collector conveys dust to the third powder silo through a pneumatic conveying system. S6 Ventilation and dust removal for the second screening zone: Dust removal points are arranged at the 13th belt conveyor discharge port, the 14th belt conveyor discharge port, the 15th belt conveyor discharge port, the screen surfaces of the upper and lower pre-screening machines, the 16th belt conveyor receiving port, the 17th belt conveyor receiving port, the 22nd belt conveyor receiving port, the 18th belt conveyor receiving port, the 19th belt conveyor receiving port, the 20th belt conveyor receiving port, and the 21st receiving port. Each dust removal point is connected to the feed port of the second screening zone dust collector through a pipeline. The second screening zone dust collector is connected to the second scraper conveying system, and the second scraper conveying system is connected to the first scraper conveying system to transport dust for the second screening zone. The first scraper conveying system lifts the dust of the two screening zones to the first powder silo and the second powder silo through a bucket elevator. S7 Dust Tank Ventilation and Dust Removal: A dust collector is installed on the top of each powder silo, and the dust is collected by the dust collector at the bottom of the powder silo; S8 Ventilation and dust removal in the finished product loading area: Dust removal points are arranged at the top receiving ports of the six finished product loading bins, and a finished product loading bin dust collector is arranged at each dust removal point. At the same time, a dust removal bulk machine is set at the bottom of the finished product loading bin to collect dust.

Images