CN216756725U - Assembly type noise-reduction green aggregate production line - Google Patents

Abstract

The utility model discloses an assembled noise reduction type green aggregate production line, which comprises a vibrating feeder, a heavy hammer crusher, a first double-excited vibrating screen, an aggregate shaping machine and a second double-excited vibrating screen. The vibrating feeder is installed inside the foundation pit, a heavy hammer crusher is arranged on one side of the output end of the vibrating feeder, and the output end of the heavy hammer crusher is connected with one end of the crushed material conveyor belt. The bottom of the aggregate shaping machine is provided with one end of the aggregate discharge belt, the other end of the aggregate discharge belt extends out of the foundation pit and is connected with a second double-excited vibrating screen, and the top of the slag output belt is installed There is a dust box. This prefabricated noise reduction green aggregate production line, through the assembly of each aggregate processing and screening device through a conveyor belt, enables the entire production line to be optimally designed according to the terrain, and can be efficiently and stably even on some rough ground. Installation and use of aggregate production lines.

Description

A prefabricated noise reduction green aggregate production line

technical field

The utility model relates to the technical field of the mining industry, in particular to an assembled noise reduction type green aggregate production line.

Background technique

The green and environmentally friendly sand and gravel aggregate production line is the general trend of the future development of the mining industry. This type of production line is also a major direction for the current sand and gravel aggregate production enterprises to shift from rough development to environmental protection and energy-saving development. Traditional sand and gravel aggregate production lines are produced through various Different devices classify and process materials, but this method has some defects in the actual production process, such as:

1. The existing aggregate production line is completely independent of each device, and the transportation of aggregate between each device needs to be transported and put in by vehicles. Due to the large interference of site factors, it is completely impossible in some rough terrains such as mines. Unable to install and use stably;

2. Existing aggregate production lines tend to generate loud noise during feeding and crushing. Even by installing soundproof walls around the site, it will still cause greater pollution to the surrounding environment, which is not in line with current industry standards. The call for green environmental protection;

3. The existing aggregate production line will generate a lot of dust during production. Although it is equipped with some dust-reducing devices, the dust-reducing effect of the outdoor dust-reducing device is not very ideal, and a large amount of dust is often scattered to the surrounding environment. among

In view of the above problems, it is urgent to carry out innovative design on the basis of the original aggregate production line.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a prefabricated noise reduction type green aggregate production line to solve the problems of limited installation environment and serious environmental pollution by noise and dust proposed in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides the following technical solutions: an assembled noise reduction type green aggregate production line, comprising a vibrating feeder, a heavy hammer crusher, the first double-excited vibrating screen, an aggregate shaping machine and The second double-excited vibrating screen, the vibrating feeder is installed inside the foundation pit, the output end of the vibrating feeder is provided with a heavy hammer crusher, and the output end of the heavy hammer crusher is One end of the crushed material conveyor belt is connected, and the other end of the crushed material conveyor belt extends out of the foundation pit and is connected with a first double-excited vibrating screen. The lower end is connected with a muck transfer belt, the lower end of the muck transfer belt is connected with one end of a muck output belt, a soil removal vibrating screen is installed on one side of the first double-excited vibrating screen, and the muck output belt One end passes through the bottom of the soil removal vibrating screen, the output end of the soil removal vibrating screen is connected with a shaping conveyor belt, the end of the shaping conveyor belt is connected with an aggregate shaping machine, and the aggregate shaping machine is provided with aggregates below. One end of the discharge belt and the other end of the aggregate discharge belt extend out of the foundation pit to be connected with a second double-excited vibrating screen, and a dust box is installed above the slag output belt.

Preferably, the vibrating feeder, the hammer crusher and the aggregate shaping machine are all located in the foundation pit below the ground, and the vibrating feeder, the hammer crusher and the aggregate shaping machine are located on the upper surface of the foundation pit Covered with foam board.

By adopting the above technical scheme, the foam board can shield and absorb the noise in the foundation pit, so as to reduce the noise intensity generated during construction.

Preferably, a return conveyor belt is connected between the first double-excited vibrating screen and the vibrating feeder, a screening output belt is arranged below the first double-excited vibrating screen, and one end of the screening output belt is connected to the The feed end of the soil removal vibrating screen is connected.

By adopting the above technical solution, the larger aggregates screened by the first double-excited vibrating screen can be re-transmitted to the vibrating feeder through the return conveyor belt and put into the heavy hammer crusher for re-crushing.

Preferably, a dust-reducing fan is embedded in the lower surface of the dust-reducing box, and a double-head motor is installed inside the dust-reducing box.

By adopting the above technical solution, the dust suppression fan can suck the air containing dust into the inside of the dust suppression box.

Preferably, the output ends of the second double-excited vibrating screen are respectively connected with a first discharge belt, a second discharge belt, a third discharge belt and a fourth discharge belt, and the fourth discharge belt A powder separator is installed at the end, and the output end of the powder separator is connected with a fifth discharge belt.

By adopting the above technical solution, the materials can be conveyed to different material storage locations through the first discharge belt, the second discharge belt, the third discharge belt and the fourth discharge belt according to different particle sizes, and the powder separator is used at the same time. The finest materials are selected by the air separation process.

Preferably, a ventilation plate is fixed on the upper end of the double-head motor, air holes are evenly opened on the outer surface of the ventilation board, a dust filter plate is fixed on the lower end of the double-head motor, and the outer surface of the dust filter board is uniformly provided with a filter The air hole and the filter screen are arranged concentrically.

With the above technical solution, when the filter screen is rotated to the dust storage pipe, the air holes can inject dust-containing air into the filter screen through the dust storage pipe for filtering.

Preferably, a dust storage pipe for storing dust is opened inside the dust box, and the upper and lower end surfaces of the dust storage pipe are respectively attached to the outer surfaces of the ventilation plate and the dust filter plate.

By adopting the above technical solution, the dust in the dust storage pipe will not leak out when the ventilation plate and the dust filter plate are rotated.

Preferably, a dust outlet pipe for exporting dust is opened inside the dust box, and the inner surface of the dust outlet pipe is penetrated by a baffle plate, and the upper end of the dust outlet pipe is connected with a recoil pipe. The lower end is designed as an inclined muck output belt, the upper surface of the dust box is penetrated by the exhaust pipe, the baffle is magnetic, and a spring is connected between the baffle and the dust box, and the baffle and the dust box are Slide to connect.

By adopting the above technical solution, the dust in the dust discharge pipe can be discharged to the muck output belt after sliding on the baffle plate.

Preferably, a turntable is fixed on the lower surface of the dust filter plate, and a magnet is embedded in the lower surface of the turntable, and the magnet has an opposite magnetic pole to the end of the baffle plate.

With the above technical solution, when the turntable drives the magnet to rotate between the two baffles, the baffles can slide to the inside of the dust box under the driving of the spring to let the dust pass.

Preferably, the lower end surface of the exhaust pipe is in contact with the upper surface of the dust filter plate, the upper end surface of the recoil pipe is in contact with the lower surface of the dust filter plate, and the center of the lower end surface of the exhaust pipe is in the opposite direction. The center of the upper end face of the punching pipe is coincident.

With the above technical solution, when the recoil pipe is overlapped with the filter screen, the airflow can drive the dust blocked on the filter screen to be blown out through the exhaust pipe, and the blown dust can be sucked into the dust box again under the action of the dust reduction fan.

Compared with the prior art, the beneficial effects of the utility model are: the assembled noise reduction type green aggregate production line:

1. By assembling each aggregate processing and screening device through a conveyor belt, the entire production line can be optimally designed according to the terrain, and the aggregate production line can be installed and used efficiently and stably even on some rough ground;

2. By installing and using noisy vibrating feeders and heavy hammer crushers inside the foundation pit, and covering the sound insulation material above the foundation pit, the relatively closed foundation pit is used to solve the traditional aggregate production line noise. At the same time, it also uses the foundation pit to maximize the utilization of space;

3. The dust inside the foundation pit is inhaled, filtered and collected through the dust box, so that the dust inside the foundation pit can be discharged to the upper surface of the muck output belt through the dust outlet pipe, and finally conveyed in the muck output belt. The dust is concentrated and discharged to the muck collection place for cleaning, thereby achieving efficient dust reduction.

Description of drawings

Fig. 1 is the overall top sectional structure schematic diagram of the utility model;

Fig. 2 is the top view structure schematic diagram of the connection between the vibrating feeder and the heavy hammer crusher of the present invention;

FIG. 3 is a schematic view of the front cross-sectional structure of the connection between the dust-reducing box and the dust-reducing fan of the present invention;

Figure 4 is a schematic diagram of the front cross-sectional structure of the connection between the double-headed motor and the ventilation plate of the present invention;

Figure 5 is a schematic view of the cross-sectional structure of the connection side of the dust box and the recoil pipe of the present invention;

FIG. 6 is a schematic view of the top cross-sectional structure of the connection between the dust box and the recoil pipe of the present invention.

In the picture: 1. Vibrating feeder; 2. Heavy hammer crusher; 3. Crushing material conveyor belt; 4. The first double-vibrating vibrating screen; 5. Returning material conveyor belt; 6. Muck conveyor belt; Transfer belt; 8. Muck output belt; 9. Screening output belt; 10. Soil removal vibrating screen; 11. Shaping conveyor belt; 12. Aggregate shaping machine; 13. Aggregate discharge belt; 14. Second double excitation Vibrating screen; 15, the first discharge belt; 16, the second discharge belt; 17, the third discharge belt; 18, the fourth discharge belt; 19, the powder separator; 20, the fifth discharge belt; 21 , dust box; 22, dust fan; 23, double-head motor; 24, ventilation plate; 25, air hole; 26, dust filter plate; 27, filter screen; 28, dust storage pipe; 29, dust outlet pipe; 30, baffle ; 31, turntable; 32, magnet; 33, recoil pipe; 34, exhaust pipe.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-6, the present utility model provides a technical solution: an assembled noise reduction type green aggregate production line, including a vibrating feeder 1, a heavy hammer crusher 2, a crushed material conveyor belt 3, a first double Exciting vibrating screen 4, return conveyor belt 5, muck conveyor belt 6, muck transfer belt 7, muck output belt 8, screening output belt 9, soil removal vibrating screen 10, shaping conveyor belt 11, aggregate shaping machine 12, bone Material discharge belt 13, second double-excited vibrating screen 14, first discharge belt 15, second discharge belt 16, third discharge belt 17, fourth discharge belt 18, powder separator 19, fifth discharge belt Discharge belt 20, dust box 21, dust fan 22, double-head motor 23, ventilation plate 24, air holes 25, dust filter plate 26, filter screen 27, dust storage pipe 28, dust discharge pipe 29, baffle 30, turntable 31, The magnet 32, the recoil pipe 33 and the exhaust pipe 34, the vibrating feeder 1 is installed inside the foundation pit, the output end side of the vibrating feeder 1 is provided with a heavy hammer crusher 2, and the heavy hammer crusher 2 The output end is connected with one end of the crushed material conveyor belt 3, and the other end of the crushed material conveyor belt 3 extends out of the foundation pit and is connected with a first double-excited vibrating screen 4, a vibrating feeder 1, a heavy hammer crusher 2 and an aggregate shaping machine. 12 are located in the foundation pit below the ground. The upper surface of the foundation pit where the vibrating feeder 1, the heavy hammer crusher 2 and the aggregate shaping machine 12 are located is covered by a foam board, and the vibrating feeder 1, The way in which the hammer crusher 2 and the aggregate shaping machine 12 are located in the foundation pit allows the noise generated by the operation of the vibration feeder 1, the hammer crusher 2 and the aggregate shaping machine 12 inside the foundation pit to be absorbed by the foam board. Blocking to reduce the noise level outgoing from the foundation pit.

As shown in Fig. 1, one side of the vibrating feeder 1 is provided with a muck conveyor belt 6, the lower end of the muck conveyor belt 6 is connected with a muck transfer belt 7, and the lower end of the muck transfer belt 7 is connected with a muck output belt 8. One end, one side of the first double-excited vibrating screen 4 is provided with a soil removing vibrating screen 10, one end of the muck output belt 8 passes under the soil removing vibrating screen 10, and the output end of the soil removing vibrating screen 10 is connected with a shaping conveyor belt 11. An aggregate shaping machine 12 is connected to the end of the shaping conveyor belt 11, one end of the aggregate discharging belt 13 is arranged below the aggregate shaping machine 12, and the other end of the aggregate discharging belt 13 extends out of the foundation pit and is connected to a second. The double-excited vibrating screen 14, the first double-excited vibrating screen 4 and the vibrating feeder 1 are connected with a return conveyor belt 5, and a screening output belt 9 is arranged below the first double-excited vibrating screen 4, and the screening output belt One end of 9 is connected to the feeding end of the soil removal vibrating screen 10, and the incompletely crushed aggregates that have been screened by the first double-exciting vibrating screen 4 are re-transmitted to the vibrating feeder 1 to be put into heavy weight by the return conveyor belt 5. Hammer crusher 2 is crushed again, the specific model of vibrating feeder 1 is GZD-4218, the specific model of heavy hammer crusher 2 is ZPCS-2024, the first double-excited vibrating screen 4 and the second double-excited vibration The specific model of the vibrating screen 14 is 3YK-2670, the specific model of the aggregate shaping machine 12 is PCL-1450, and the specific model of the powder separator 19 is N-3500.

As shown in Figure 2-6, a dust suppression box 21 is installed above the muck output belt 8, a dust suppression fan 22 is embedded in the lower surface of the dust suppression box 21, a double-headed motor 23 is installed inside the dust suppression box 21, and a second double-headed motor 23 is installed inside the dust suppression box 21. The output end of the exciting vibrating screen 14 is respectively connected with the first discharge belt 15, the second discharge belt 16, the third discharge belt 17 and the fourth discharge belt 18, and the end of the fourth discharge belt 18 is installed with a selector. The powder machine 19, the output end of the powder separator 19 is connected with a fifth discharge belt 20, the upper end of the double-head motor 23 is fixed with a ventilation plate 24, the outer surface of the ventilation board 24 is evenly provided with air holes 25, and the lower end of the double-head motor 23 A dust filter plate 26 is fixed, the outer surface of the dust filter plate 26 is evenly provided with a filter screen 27, the air holes 25 and the filter screen 27 are arranged concentrically, and a dust storage pipe 28 for storing dust is opened inside the dust box 21. The upper and lower end surfaces are respectively attached to the outer surfaces of the ventilation plate 24 and the dust filter plate 26, and a dust outlet pipe 29 for exporting dust is opened inside the dust box 21, and the inner surface of the dust outlet pipe 29 is penetrated by the baffle 30, and the outlet The upper end of the dust pipe 29 is connected with a recoil pipe 33, the lower end of the dust discharge pipe 29 is designed for the oblique slag output belt 8, the upper surface of the dust box 21 is penetrated by the exhaust pipe 34, the baffle 30 is magnetic, and the A spring is connected between the plate 30 and the dust box 21, and the baffle 30 and the dust box 21 are slidingly connected. The opposite end of the baffle 30 has opposite magnetic poles, the lower end surface of the exhaust pipe 34 is in contact with the upper surface of the dust filter plate 26, the upper end surface of the recoil pipe 33 is in contact with the lower surface of the dust filter plate 26, and the bottom surface of the exhaust pipe 34 The center of the lower end surface coincides with the center of the upper end surface of the recoil pipe 33, and the dust inside the foundation pit is sucked, filtered and collected by the dust box 21, so that the dust inside the foundation pit can be discharged to the muck output through the dust outlet pipe 29. The upper surface of the belt 8, and finally discharge the dust to the muck collection place for cleaning under the conveyance of the muck output belt 8, so as to achieve efficient dust reduction. 26 rotation, using the dislocation of the air hole 25 and the filter screen 27 and the dust storage pipe 28 and the dust discharge pipe 29 to complete the filtration and discharge of dust, and at the same time through the recoil pipe 33 and the exhaust pipe 34 to use the airflow to the filter screen 27. Backwashing is performed to prevent the filter screen 27 from being clogged with dust during long-term use.

Working principle: When using this prefabricated noise reduction type green aggregate production line, firstly, according to the terrain, separate the first double-excited vibrating screen 4, the soil-removing vibrating screen 10, the second double-excited vibrating screen 14 and the powder separator 19 respectively. Install it in a suitable position, and then install the vibrating feeder 1, the heavy hammer crusher 2 and the aggregate shaping machine 12 at the bottom of the foundation pit. At this time, the vibrating feeder 1 and the first double-excited vibrating screen 4 Install the return conveyor belt 5 between them, install the muck conveyor belt 6 and the muck transfer belt 7 on one side of the vibrating feeder 1, and then install the crushed material conveyor belt 3 at the discharge port of the heavy hammer crusher 2. The crushed material conveyor belt The other end of 3 is connected with the feed port of the first double-excited vibrating screen 4, and then one end of the muck output belt 8 is installed under the output end of the muck transfer belt 7, and the other end of the muck output belt 8 is passed through. The bottom of the soil removal vibrating screen 10 is fixed on the ground, and then the screening output belt 9 is installed between the first double-excited vibration screen 4 and the soil removal vibrating screen 10, and between the soil removal vibrating screen 10 and the aggregate shaping machine 12. Shaping conveyor belt 11, shaping conveyor belt 11 installs aggregate discharge belt 13 between the output end of aggregate shaping machine 12 and the feeding end of second double-excited vibrating screen 14, and then the second double-exciting vibrating screen 14 The output ends are respectively installed with the first discharge belt 15, the second discharge belt 16, the third discharge belt 17 and the fourth discharge belt 18 facing different directions. The input end is connected, and the fifth discharge belt 20 is installed at the output end of the powder separator 19. Finally, the dust box 21 is installed in the foundation pit and the discharge port of the dust discharge pipe 29 is aligned with the slag output belt 8 to complete the aggregate removal process. installation of production lines;

When using, first put the large pieces of rough stone into the vibrating feeder 1 from the feeding port of the vibrating feeder 1, and then feed the vibrating feeder 1 to the heavy hammer crusher 2 for crushing, and the crushed materials pass through the crushed material conveyor belt. 3. Transported to two first double-excited vibrating screens 4 for screening, and the screened recycled material is transported to the heavy hammer crusher 2 through the recycling material conveyor belt 5 for secondary crushing. The material is transported to the first double-excited vibrating screen 4 again. During the crushing process, the slag leaks directly through the slag conveyor belt 6 and the slag transfer belt 7 and is transported to the slag output belt 8. The other materials other than the recycled materials screened by the vibrating screen 4 are transported to the soil removal vibrating screen 10 through the screening output belt 9 to screen the slag, and the screened slag falls on the slag output belt 8 and is transported away;

The materials are transported to the two aggregate shaping machines 12 through the shaping conveyor belt 11 for shaping treatment, and the processed materials are transported through the aggregate discharge belt 13 to the two second double-excited vibrating screens 14 for screening to obtain various specifications. The finished material is transported to the finished product silo for temporary storage through the first discharge belt 15, the second discharge belt 16, the third discharge belt 17 and the fourth discharge belt 18, and the most dense raw material products are sent from the fourth discharge belt. The material belt 18 enters the powder classifier 19, and the powder selection process is added by the powder classifier 19 to select the powder. After the powder selection is completed, it is transported to the finished product silo through the fifth discharge belt 20 for temporary storage;

During the working process of the vibrating feeder 1, the hammer crusher 2 and the aggregate shaping machine 12, first start the dust-reducing fan 22 and the double-head motor 23 inside the dust-reducing box 21, and the dust-reducing fan 22 rotates to remove a large amount of dust inside the foundation pit When the double-headed motor 23 drives the air hole 25 to rotate to the position coincident with the dust storage pipe 28 through the ventilation plate 24, the air is filtered by the filter screen 27 on the dust filter plate 26 and discharged into and out The dust pipe 29 is blocked by the filter screen 27, and the dust remains inside the dust storage pipe 28, while the clean air passes through the backwash pipe 33 under the blocking of the baffle 30 to the filter screen that does not overlap with the dust storage pipe 28. 27 to carry out back blowing from bottom to top, so that a small amount of dust blocked on the filter screen 27 can be discharged through the exhaust pipe 34 under the driving of the airflow, and after a period of time, the double-head motor 23 drives the ventilation plate 24 and the dust filter plate 26 to rotate at the same time At this time, the filter screen 27 neither overlaps with the dust storage pipe 28 nor with the recoil pipe 33, and the magnet 32 on the turntable 31 driven by the dust filter plate 26 to rotate is located between the two baffles 30, and the baffle 30 loses the magnet The repulsive force of 32 slides under the driving of the spring and leaks the dust to the lower end of the dust outlet pipe 29. The dust outlet pipe 29 leaks the dust to the muck output belt 8 and is discharged together with the muck. There is no air flow at the time, so the dust will not be blown away by the air flow. With the double-headed motor 23 working again, the air hole 25, the filter screen 27 and the magnet 32 can filter and collect the dust and filter the filter screen 27 through periodic rotation. Backflush cleaning.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. An assembled noise reduction type green aggregate production line, comprising a vibrating feeder (1), a heavy hammer crusher (2), a first double-excited vibrating screen (4), and an aggregate shaping machine (12) and a second double-excited vibrating screen (14), characterized in that: the vibrating feeder (1) is installed inside the foundation pit, and a heavy hammer is provided on one side of the output end of the vibrating feeder (1). A crusher (2), the output end of the hammer crusher (2) is connected with one end of the crushed material conveyor belt (3), and the other end of the crushed material conveyor belt (3) extends out of the foundation pit and is connected with a first double Exciting vibrating screen (4), one side of the vibrating feeder (1) is provided with a slag conveyor belt (6), the lower end of the slag conveyor belt (6) is connected with a slag transfer belt (7), so The lower end of the slag transfer belt (7) is connected with one end of the slag output belt (8). One end of the soil output belt (8) passes under the soil removal vibrating screen (10), the output end of the soil removal vibrating screen (10) is connected with a shaping conveyor belt (11), and the end of the shaping conveyor belt (11) is connected with There is an aggregate shaping machine (12), one end of an aggregate discharge belt (13) is arranged below the aggregate shaping machine (12), and the other end of the aggregate discharge belt (13) protrudes out of the foundation pit A second double-excited vibrating screen (14) is connected, and a dust box (21) is installed above the muck output belt (8). 2. An assembled noise reduction type green aggregate production line according to claim 1, characterized in that: the vibrating feeder (1), the heavy hammer crusher (2) and the aggregate shaping machine (12) ) are located in the foundation pit below the ground, and the upper surface of the foundation pit where the vibrating feeder (1), the heavy hammer crusher (2) and the aggregate shaping machine (12) are located is covered by a foam board. 3. An assembled noise reduction type green aggregate production line according to claim 1, characterized in that: a cage is connected between the first double-excited vibrating screen (4) and the vibrating feeder (1) A material conveyor belt (5), a screening output belt (9) is arranged below the first double-excited vibrating screen (4), and one end of the screening output belt (9) is connected to the feed of the soil removal vibrating screen (10). end connected. 4. A prefabricated noise reduction type green aggregate production line according to claim 1, characterized in that: a dust suppression fan (22) is embedded in the lower surface of the dust suppression box (21), and the dust suppression box (21) 21) is equipped with a double-headed motor (23). 5. An assembled noise reduction type green aggregate production line according to claim 1, characterized in that: the output ends of the second double-excited vibrating screen (14) are respectively connected with first discharge belts (15). ), the second discharge belt (16), the third discharge belt (17) and the fourth discharge belt (18), the end of the fourth discharge belt (18) is equipped with a powder separator (19), A fifth discharge belt (20) is connected to the output end of the powder separator (19). 6. A prefabricated noise reduction type green aggregate production line according to claim 4, characterized in that: a ventilation plate (24) is fixed on the upper end of the double-headed motor (23), and the ventilation plate (24) Air holes (25) are evenly opened on the outer surface of the double-head motor (23), a dust filter plate (26) is fixed on the lower end of the double-head motor (23), and a filter screen (27) is evenly arranged on the outer surface of the dust filter plate (26). The air hole (25) and the filter screen (27) are arranged concentrically. 7. A prefabricated noise reduction type green aggregate production line according to claim 1, characterized in that: a dust storage pipe (28) for storing dust is opened inside the dust box (21), The upper and lower end surfaces of the dust pipe (28) are respectively attached to the outer surfaces of the ventilation plate (24) and the dust filter plate (26). 8. A prefabricated noise reduction type green aggregate production line according to claim 1, characterized in that: a dust discharge pipe (29) for exporting dust is opened inside the dust box (21), and the dust discharge pipe (29) is The inner surface of the pipe (29) is penetrated by the baffle plate (30), and the upper end of the dust discharge pipe (29) is connected with a recoil pipe (33), and the lower end of the dust discharge pipe (29) is for the oblique slag output Belt (8) design, the upper surface of the dust box (21) is penetrated by the exhaust pipe (34), the baffle (30) is magnetic, and the space between the baffle (30) and the dust box (21) A spring is connected, and the baffle plate (30) is slidingly connected with the dust box (21). 9. An assembled noise reduction type green aggregate production line according to claim 6, characterized in that: a turntable (31) is fixed on the lower surface of the dust filter plate (26), and a lower surface of the turntable (31) is fixed on the lower surface. A magnet (32) is embedded in the surface, and the magnet (32) has an opposite magnetic pole to the end of the baffle plate (30). 10. A prefabricated noise reduction type green aggregate production line according to claim 8, characterized in that: the lower end surface of the exhaust pipe (34) is in contact with the upper surface of the dust filter plate (26), so The upper end surface of the recoil pipe (33) is in contact with the lower surface of the dust filter plate (26), and the circle center of the lower end surface of the exhaust pipe (34) coincides with the circle center of the upper end surface of the recoil pipe (33).

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