An aggregate dedusting device for a large concrete mixing plant

Abstract

The application discloses an aggregate dust removal device for a large concrete mixing station and relates to the dust removal device field.The aggregate dust removal device comprises a conveying device, a dust falling assembly is arranged on one side of the conveying device, and the dust falling assembly comprises a dust filtering unit, a spraying unit, a separation unit and a vibration unit.The dust filtering unit comprises a dust filtering plate, a plurality of dust filtering holes are formed in the dust filtering plate, the dust filtering plate is arranged to be inclined to the conveying device direction and extends above one end of the conveying device, and the spraying unit is arranged on the side of the dust filtering plate close to the conveying device.The dust on the aggregate is cleaned through the cleaning water, the dust on the aggregate is treated more completely, a large amount of dust is prevented from being raised in the subsequent conveying and processing of the aggregate, the cleaning water and the sludge can be continuously separated, the filter cloth belt has the effect of continuous filtration, the dust in the aggregate is more quickly and completely filtered through the dust filtering plate, the spraying on the aggregate is improved, the cleaning effect on the aggregate is improved, and the impact and beating effect on the dust filtering plate and the filter cloth belt is better.

Description

Technical Field

[0001] This invention relates to the field of dust removal devices, and in particular to an aggregate dust removal device for large concrete mixing plants. Background Technology

[0002] A large concrete mixing plant is a piece of equipment used in concrete construction projects to mix and blend concrete. It mainly consists of five major components: a mixing host, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. The main principle of a concrete mixing plant is to use cement as a binder to mix and blend raw materials such as sand, gravel, lime, and cinders to finally produce concrete, which is used as wall material and in infrastructure construction projects.

[0003] Concrete aggregates are an essential component of concrete structures, consisting of granular, loose materials. They are typically made from natural sand, manufactured sand, and gravel, and are used to fill voids in concrete and enhance its strength. The main function of concrete aggregates is to support the concrete structure and form a solid foundation after the concrete has hardened. Concrete aggregates are usually classified according to their particle size. Coarse aggregates typically have a particle diameter greater than 5 mm, such as gravel and crushed stone; while fine aggregates typically have a particle diameter less than 5 mm, such as natural sand and manufactured sand. Furthermore, concrete aggregates can also be classified according to their application, such as concrete aggregates used in road construction and concrete aggregates used in building engineering.

[0004] Because aggregates contain a large amount of dust, dust removal devices are needed to remove dust during the transport and processing of aggregates. Dust removal devices are a series of equipment and processes used to control dust pollution generated by concrete mixing plants. These devices and processes can remove dust generated by concrete mixing plants in different ways, including gravity settling, electrostatic adsorption, wet dust removal, pulse jet cleaning, etc. Wet dust removal involves passing air containing dust through water mist or water curtain, mixing the dust with water and settling it to the bottom. This method is suitable for handling large amounts of dust and can effectively remove fine dust.

[0005] Chinese patent application CN112933829A discloses a dust removal device for aggregate screening, including a screening machine body, a feed pipe, a feed hopper, a cleaning cover, disassembly bolts, machine legs, a drain valve, a control panel, a sealing strip, an observation window, and a screening discharge pipe. The feed hopper is connected to the upper left inlet of the screening machine body via the feed pipe. A cleaning cover is installed at the left end of the screening machine body and is secured with disassembly bolts. The arrangement of the aggregate feed pipe, splash guard, spray box, spray nozzle, dust suppression water nozzle, and connecting pipe head facilitates the spraying and dust suppression operation of the incoming aggregate raw materials, preventing dust from flying. The aggregate raw materials are introduced into the spray box through the aggregate feed pipe and splash guard. Depending on the amount of dust, a water pipe is connected to the connecting pipe head, allowing water to be sprayed through the spray nozzle and onto the dust suppression water nozzle, achieving the effect of water spraying and dust suppression, thus ensuring dust prevention.

[0006] The aforementioned patents and prior art also have the following defects:

[0007] The dust on the aggregate is washed away by spraying, but there is no movement or friction between the aggregates, resulting in poor dust cleaning and treatment. The washing water mixed with dust needs to be separated and recycled or reused. Natural sedimentation takes too long, and the sedimentation equipment occupies a large area, making it impractical. Using filter cloth for filtration is prone to dust clogging, resulting in poor continuous filtration.

[0008] Therefore, this application provides an aggregate dust removal device for large-scale concrete mixing plants to meet the requirements. Summary of the Invention

[0009] The purpose of this application is to provide an aggregate dust removal device for large-scale concrete mixing plants. The device cleans the aggregates with washing water, resulting in more thorough dust removal and preventing the aggregates from generating large amounts of dust during subsequent transportation and processing. It can continuously separate washing water and sludge, giving the filter cloth a continuous filtration effect. The dust in the aggregates passes through the dust filter plate more quickly and thoroughly. When spraying the aggregates, it improves the cleaning effect on the aggregates and provides better impact and beating effect on the dust filter plate and filter cloth.

[0010] To achieve the above objectives, this application provides the following technical solution: an aggregate dust removal device for a large concrete mixing plant, comprising a conveying device, wherein a dust suppression component is provided on one side of the conveying device, and the dust suppression component comprises a dust filtering unit, a spraying unit, a separation unit and a vibration unit;

[0011] The dust filtration unit includes a dust filtration plate with a plurality of dust filtration holes. The dust filtration plate is inclined toward the conveying device and extends above one end of the conveying device.

[0012] The spraying unit is located on the side of the dust filter plate near the conveying device. The spraying unit includes a plurality of spray heads, which are located above the dust filter plate. The spray heads can spray cleaning water, which can carry away the dust in the aggregate on the dust filter plate and let it fall into the separation unit.

[0013] The separation unit includes a perforated conveyor belt and a filter cloth belt. The perforated conveyor belt and the filter cloth belt can rotate synchronously, and the filter cloth belt is sleeved on the perforated conveyor belt. Washing water mixed with dust falls onto the filter cloth belt. The washing water falls through the filter cloth belt and the perforated conveyor belt. The dust and washing water mix to form sludge. The sludge is left on the filter cloth belt and moves forward with the filter cloth belt.

[0014] The vibration unit includes a linear drive, a striking energy storage component, a release component, an impact component, an impact energy storage component, a linkage component, and a striking component. The linear drive can drive the striking component to move downward, and the downward movement of the striking component can cause the striking energy storage component to store energy. At the same time, the striking component can drive the impact component to move downward through the linkage component, and the downward movement of the impact component can cause the impact energy storage component to store energy. The release component can release the striking component, so that the striking energy storage component pushes the striking component to strike the filter cloth belt, and the impact energy storage component pushes the impact component to strike the dust filter plate.

[0015] Preferably, the vibration unit further includes a fastening cylinder and a fastening rod. The striking component is located at the bottom of the filter cloth belt. The striking energy storage component is fixedly installed at the bottom of the striking component. The fastening cylinder is fixedly installed at the bottom of the striking component. The fastening cylinder has a vertical channel and a horizontal channel. The bottom of the horizontal channel is connected to the bottom of the vertical channel. The bottom of the vertical channel is inclined towards the horizontal channel. The fastening rod is rotatably connected to the output end of the linear drive component. When the linear drive component moves upward, it can drive the fastening rod to move, so that the fastening rod rotates through the vertical channel into the horizontal channel. When the linear drive component moves downward, it can drive the fastening cylinder to move through the fastening rod. The top of the release component is inclined. After the fastening rod moves to the position of the release component and continues to move, the fastening rod rotates from the horizontal channel into the vertical channel under the action of the inclined surface of the release component.

[0016] Preferably, the dust filtration unit further includes a dust filtration funnel, a dust filtration tube, and a dust filtration sleeve. The dust filtration funnel is disposed below the dust filtration plate and is located on the side of the spray unit away from the transmission device. The dust filtration tube is fixedly connected to the bottom of the dust filtration funnel. One end of the dust filtration sleeve is fixedly installed on the top of the dust filtration funnel, and the other end of the dust filtration sleeve is fixedly installed on the bottom of the dust filtration plate.

[0017] Preferably, the spray unit further includes several diversion pipes, a water supply pipe, a spray funnel, and a spray sleeve. The spray funnel is positioned above the filter cloth belt. One end of the spray sleeve is fixedly installed on the top of the spray funnel, and the other end of the spray sleeve is fixedly installed on the bottom of the dust filter plate. Several diversion pipes are all fixedly connected to the water supply pipe, and several spray heads are respectively fixedly connected to the corresponding diversion pipes.

[0018] Preferably, the separation unit further includes several rotating rollers, a rotary driver, a scraper, a separation funnel, a separation water pipe, and two side baffles. The two side baffles are disposed on both sides of the filter cloth belt. The perforated conveyor belt is disposed on several of the rotating rollers. The rotating rollers are rotatably connected to the side baffles. The rotary driver can drive one of the rotating rollers to rotate. The scraper is fixedly mounted on the side baffles and is located at the end of the filter cloth belt away from the dust filter funnel. The separation funnel is disposed on the inner ring of the perforated conveyor belt, and the top of the separation funnel abuts against the perforated conveyor belt. The separation water pipe is fixedly connected to the bottom of the separation funnel.

[0019] Preferably, a waste collection box is provided below the filter cloth belt, and a support plate is fixedly installed on the waste collection box by a support rod. The linear drive component is fixedly installed on the support plate, the beater energy storage component is fixedly installed on the support plate, and a limit rod is also fixedly installed at the bottom of the beater component. The limit rod passes through the support plate and slides with the support plate. The beater energy storage component is sleeved on the limit rod, and cleaning doors are provided on both sides of the waste collection box.

[0020] Preferably, the dust suppression assembly further includes a bracket, the spray funnel is fixedly installed on the side baffle, the side baffle is fixedly installed on the bracket, a support frame is fixedly installed on the bracket, a plurality of rubber blocks are fixedly installed on the support frame, the dust filter plate is fixedly installed on the bottom of the rubber blocks and abuts against the bottom of the support frame, a plurality of spray heads are fixedly installed on the support frame, and the dust filter funnel is fixedly installed on the bracket.

[0021] Preferably, a plurality of atomizing nozzles are fixedly installed at one end of the support frame away from the transmission device, and the plurality of atomizing nozzles are fixedly connected to a connecting pipe, which is fixedly connected to the water supply pipe.

[0022] Preferably, a support frame is fixedly installed on the top of the two side baffles, one end of the impact accumulator is fixedly installed on the support frame, and the other end of the impact accumulator is fixedly installed on the impact member. A clearance groove is provided on the two side baffles corresponding to the position of the striking member. The striking member is disposed in the clearance groove. The linkage is fixedly installed on the end of the striking member. The other end of the linkage passes through the impact member and slides with the impact member. An anti-detachment plate is fixedly installed on the end of the linkage away from the striking member.

[0023] Preferably, a drive pulley is fixedly installed at the output end of the rotary driver, and a passive pulley is fixedly installed on one of the plurality of rotating rollers. A connecting belt is connected to the drive pulley and the passive pulley. A movable box is provided below the scraper, and a blocking rubber strip is fixedly installed between the two side baffles. The blocking rubber strip is located on the side of the spray funnel away from the transmission device.

[0024] In summary, the technical effects and advantages of this invention are as follows:

[0025] 1. In this invention, the dust filter plate removes dust from the aggregates, and the aggregates are cleaned with washing water, resulting in more thorough dust removal and preventing the aggregates from generating large amounts of dust during subsequent transport and processing, thus improving the cleanliness of the aggregate processing environment. The washing water mixed with dust falls onto the filter cloth belt, which is then fed through the filter cloth belt and perforated conveyor belt. Sludge remains on the filter cloth belt and moves with it, with the sludge being discharged at the corners of the filter cloth belt. This continuous separation of washing water and sludge ensures the filter cloth belt has a continuous filtration effect, facilitating the treatment, recycling, and reuse of the washing water, as well as the collection and treatment of the filtered sludge. The linear drive component moves the beating and impact components downwards and compresses the beating and impact accumulator components to store energy. When the beating component moves to the release component position, the release component releases the beating component, and the beating accumulator component drives the beating component to quickly reset and beat the filter cloth belt, causing the sludge on the filter cloth belt to fall. The dust is removed more thoroughly, preventing the filter cloth from being clogged by sludge, improving the continuous filtration capacity of the filter cloth, and resulting in better filtration effect. The impact accumulator drives the impactor to quickly reset and impact the dust filter plate, causing the dust filter plate to vibrate. The aggregate on the dust filter plate vibrates, and the dust in the aggregate passes through the dust filter plate more quickly and thoroughly, making the dust filter plate more effective in filtering dust. This prevents the upper layer of dust from being blocked by the aggregate and unable to fall through the filter holes. When the aggregate is sprayed, the aggregate rubs against each other, which removes the dust wrapped and adsorbed on the aggregate. At the same time, the spraying of the aggregate improves the cleaning effect of the aggregate, making the amount of residual dust on the aggregate lower, and ensuring that the aggregate is not easily raised in subsequent processing. The vibration unit stores the force of the beating and impact accumulators and then releases and resets them. The reset is faster, and the impact and beating effect on the dust filter plate and filter cloth is better, and the vibration amplitude of the dust filter plate and filter cloth is greater.

[0026] 2. In this invention, the aggregate moves in the front half of the dust filter plate. The dust falls into the dust filter funnel through the filter holes on the dust filter plate and is discharged out through the dust filter pipe. This can separate the dust in the aggregate, reduce the difficulty of subsequent spray cleaning of the aggregate, improve the effect of subsequent spray cleaning of the aggregate, and save spray cleaning water. The dust filter funnel is fixedly installed to the dust filter plate by a dust filter sleeve. When the dust filter plate vibrates, the dust filter sleeve can expand and contract, so that the vibration of the dust filter plate will not be transmitted to the dust filter funnel, ensuring the stability of the dust filter funnel. The dust filter funnel will not restrict the vibration of the dust filter plate, ensuring the large amplitude vibration of the dust filter plate.

[0027] 3. In this invention, the water supply pipe is connected to a pressurized external water source. The water supply pipe supplies water to the spray head through the diversion pipe. The spray head sprays the aggregate. The cleaning water falls onto the filter cloth belt through the spray funnel. The spray funnel restrains the cleaning water to prevent it from spreading and falling to other positions, ensuring that the cleaning water falls onto the filter cloth belt for filtration. When the dust filter plate vibrates, the spray sleeve can extend and retract, so that the vibration of the dust filter plate is not transmitted to the spray funnel, ensuring the stability of the spray funnel. The spray funnel does not restrict the vibration of the dust filter plate, ensuring large-amplitude vibration of the dust filter plate.

[0028] 4. In this invention, the dust filter plate is installed on the support frame via rubber blocks, without a rigid connection to the support frame. This prevents the dust filter plate from transmitting vibrations to the support frame, ensuring the stability of the support frame. The rubber blocks are installed on top of the dust filter plate, and the bottom of the dust filter plate is supported by the support frame, preventing the aggregate on the dust filter plate from falling off under stress and ensuring the support of the dust filter plate. Furthermore, the impactor impacts the dust filter plate from bottom to top, which does not obstruct the upward displacement of the dust filter plate, resulting in better vibration effect of the dust filter plate.

[0029] 5. In this invention, because the impactor strikes the dust filter plate, which is hard, the displacement of the impactor after striking the dust filter plate is small, while the beating component beating the filter cloth belt, which is soft, has a large displacement after beating the filter cloth belt. After the impactor stops striking the dust filter plate, the beating component can continue to move. The beating component can beat the filter cloth belt with the maximum amplitude, and can ensure that the fastening rod can move upward until the fastening rod enters the horizontal channel through the vertical channel, preventing the elastic filter cloth belt from deforming. The fastening cylinder cannot apply force to the fastening rod, causing the fastening rod to be unable to rotate. The upward movement of the fastening rod is not limited by the position of the impactor. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the transmission device and dust suppression component in this invention;

[0032] Figure 2 This is a schematic diagram of the structure of the transmission device, dust filtration unit, spraying unit and separation unit in this invention;

[0033] Figure 3 This is a schematic diagram of the structure of the dust filter funnel, dust filter tube, and dust filter sleeve in this invention;

[0034] Figure 4 This is a schematic diagram of the structure of the spray head, the diversion pipe, the dust filter plate, and the scraper in this invention;

[0035] Figure 5 This is a schematic diagram of the structure of the dust filter plate, perforated conveyor belt, and filter cloth belt in this invention;

[0036] Figure 6 This is a schematic diagram of the structure of the vibration component, perforated conveyor belt, filter cloth belt and separation funnel in this invention;

[0037] Figure 7 This is a schematic diagram of the structure of the dust filter plate and filter cloth belt in this invention;

[0038] Figure 8 For the present invention Figure 7 Enlarged view of section A;

[0039] Figure 9 For the present invention Figure 7 Enlarged view of section B;

[0040] Figure 10 This is a schematic diagram of the impact component, impact energy storage component, and support frame in this invention;

[0041] Figure 11 This is a schematic diagram of the structure of the driving component, striking plate, striking energy storage component, fastening cylinder, fastening rod and release component in this invention.

[0042] In the diagram: 1. Conveying device; 2. Dust suppression assembly; 3. Dust filtration unit; 31. Dust filter plate; 32. Dust filter funnel; 33. Dust filter pipe; 34. Dust filter sleeve; 4. Spraying unit; 41. Spray head; 42. Diverter pipe; 43. Water supply pipe; 44. Spray funnel; 45. Spray sleeve; 5. Separation unit; 51. Perforated conveyor belt; 52. Filter cloth belt; 53. Rotating roller; 54. Rotary actuator; 55. Scraper; 56. 57. Separation funnel; 6. Separation water pipe; 7. Vibration unit; 8. Linear drive component; 9. Beating energy storage component; 10. Release component; 11. Impact component; 12. Impact energy storage component; 13. Linkage component; 14. Beating component; 15. Fastening cylinder; 16. Fastening rod; 17. Waste collection box; 18. Support plate; 19. Bracket; 10. Support frame; 11. Atomizing nozzle; 12. Support frame; 13. Moving box; 14. Blocking rubber strip. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example: Reference Figures 1-11 The aggregate dust removal device shown is used in a large concrete mixing plant. It includes a conveying device 1, and a dust suppression component 2 is provided on one side of the conveying device 1. The dust suppression component 2 includes a dust filtering unit 3, a spraying unit 4, a separation unit 5 and a vibration unit 6.

[0045] The dust filtration unit 3 includes a dust filtration plate 31, which has a plurality of dust filtration holes. The dust filtration plate 31 is inclined toward the conveying device 1 and extends above one end of the conveying device 1.

[0046] The spray unit 4 is located on the side of the dust filter plate 31 near the conveying device 1. The spray unit 4 includes several spray heads 41, which are located above the dust filter plate 31. The spray heads 41 can spray cleaning water, which can carry away the dust in the aggregate on the dust filter plate 31 and let it fall into the separation unit 5.

[0047] The separation unit 5 includes a perforated conveyor belt 51 and a filter cloth belt 52. The perforated conveyor belt 51 and the filter cloth belt 52 can rotate synchronously, and the filter cloth belt 52 is sleeved on the perforated conveyor belt 51. The washing water mixed with dust falls onto the filter cloth belt 52. The washing water falls through the filter cloth belt 52 and the perforated conveyor belt 51. The dust and washing water mix to form sludge. The sludge is left on the filter cloth belt 52 and moves forward with the filter cloth belt 52.

[0048] The vibration unit 6 includes a linear drive 61, a striking energy storage component 62, a release component 63, an impact component 64, an impact energy storage component 65, a linkage component 66, and a striking component 67. The linear drive 61 can drive the striking component 67 to move downward. The downward movement of the striking component 67 can cause the striking energy storage component 62 to store energy. At the same time, the striking component 67 can drive the impact component 64 to move downward through the linkage component 66. The downward movement of the impact component 64 can cause the impact energy storage component 65 to store energy. The release component 63 can release the striking component 67, so that the striking energy storage component 62 pushes the striking component 67 to strike the filter cloth belt 52, and the impact energy storage component 65 pushes the impact component 64 to strike the dust filter plate 31.

[0049] The aggregate is placed at the end of the dust filter plate 31 away from the conveying device 1. The aggregate moves towards the conveying device 1 under the tilting action of the dust filter plate 31. Small particles and dust on the aggregate fall through the dust filter holes on the dust filter plate 31 and below it. The aggregate then continues to move on the dust filter plate 31 to the spray unit 4. The spray head 41 sprays cleaning water onto the aggregate. The cleaning water blows away the dust wrapped and adsorbed on the aggregate and falls through the dust filter holes on the dust filter plate 31 to the separation unit 5. The cleaning water mixed with dust falls onto the filter cloth belt 52. The cleaning water falls through the filter cloth belt 52 and the perforated conveyor belt 51. Since the cleaning water cannot be completely filtered out by the filter cloth belt 52, the filtered dust mixes with the remaining cleaning water to form sludge. The sludge is then filtered through the filter cloth belt. The filter cloth belt 52 moves forward as it rotates, and feeds material at the corner of the filter cloth belt 52. At the same time, the linear drive 61 drives the beater 67 to move downward. The beater 67 drives the impactor 64 to move synchronously through the linkage 66. The downward movement of the beater 67 causes the beater accumulator 62 to accumulate power, and the downward movement of the impactor 64 causes the impact accumulator 65 to accumulate power. When the beater 67 moves downward to the position of the release member 63, the release member 63 releases the beater 67. The beater accumulator 62 resets and drives the beater 67 to move upward quickly to beat the filter cloth belt 52, knocking off the sludge on the filter cloth belt 52. The impact accumulator 65 resets and drives the impactor 64 to move upward. The impactor 64 hits the dust filter plate 31, causing the dust filter plate 31 to vibrate.

[0050] The dust filter plate 31 filters out dust from the aggregates. The aggregates are then washed with cleaning water, resulting in more thorough dust removal and preventing the generation of large amounts of dust during subsequent transport and processing, thus improving the cleanliness of the aggregate processing environment. The cleaning water mixed with dust falls onto the filter cloth belt 52, which is then discharged through the filter cloth belt 52 and the perforated conveyor belt 51. Sludge remains on the filter cloth belt 52 and moves with it, discharging at the corners of the filter cloth belt 52, continuously separating the cleaning water and sludge. This design ensures continuous filtration of the filter cloth belt 52, facilitating the treatment, recycling, and reuse of cleaning water, as well as the collection and treatment of filtered sludge. The linear drive 61 moves the beating component 67 and the impact component 64 downwards, compressing the beating and impact accumulators 62 and 65 to store energy. When the beating component 67 reaches the release component 63, the release component 63 releases the beating component 67, and the beating accumulator 62 drives the beating component 67 to quickly reset and beat the filter cloth belt 52, removing the sludge from the filter cloth belt 52. The dust falls more thoroughly, preventing the filter cloth belt 52 from being clogged by sludge, improving the continuous filtration capacity of the filter cloth belt 52, and resulting in better filtration effect. The impact accumulator 65 drives the impactor 64 to quickly reset and impact the dust filter plate 31, causing the dust filter plate 31 to vibrate. The aggregate on the dust filter plate 31 vibrates, and the dust in the aggregate passes through the dust filter plate 31 more quickly and thoroughly, making the dust filter plate 31 more effective at filtering dust. This prevents the upper layer of dust from being blocked by the aggregate and unable to fall through the filter holes. During spraying, the aggregate rubs against each other. This process rubs away the dust that is wrapped and adsorbed on the aggregate, and at the same time, it improves the cleaning effect of the aggregate when spraying it, so that the amount of residual dust on the aggregate is lower and the aggregate is less likely to raise dust in subsequent processing. The vibration unit 6 stores the force of the beating storage component 62 and the impact storage component 65, and then releases and resets the beating storage component 62 and the impact storage component 65. The reset is faster and the impact and beating effect on the dust filter plate 31 and the filter cloth belt 52 is better, and the vibration amplitude of the dust filter plate 31 and the filter cloth belt 52 is larger.

[0051] Preferably, both the impact energy storage element 65 and the slapping energy storage element 62 are springs in the prior art.

[0052] Preferably, multiple sets of vibration units 6 are provided to increase the impact and beating frequency on the dust filter plate 31 and the filter cloth belt 52.

[0053] Furthermore, referring to Figures 1-11The vibration unit 6 also includes a fastening cylinder 68 and a fastening rod 69. The beater 67 is located at the bottom of the filter cloth belt 52. The beater energy storage unit 62 is fixedly installed at the bottom of the beater 67. The fastening cylinder 68 is fixedly installed at the bottom of the beater 67. The fastening cylinder 68 has a vertical channel and a horizontal channel. The bottom of the horizontal channel is connected to the bottom of the vertical channel. The bottom of the vertical channel is inclined towards the horizontal channel. The fastening rod 69 is rotatably connected to the output end of the linear drive 61. When the linear drive 61 moves upward, it can drive the fastening rod 69 to move, so that the fastening rod 69 rotates through the vertical channel into the horizontal channel. When the linear drive 61 moves downward, it can drive the fastening cylinder 68 to move through the fastening rod 69. The top of the release member 63 is inclined. After the fastening rod 69 moves to the position of the release member 63 and continues to move, the fastening rod 69 rotates from the horizontal channel into the vertical channel under the action of the inclined surface of the release member 63.

[0054] When the output end of the linear drive 61 moves upward, it drives the locking rod 69 to move upward. After the locking rod 69 moves to the position of the locking cylinder 68 and continues to move, the locking rod 69 enters the vertical channel. Under the action of the inclined surface at the bottom of the vertical channel, the locking rod 69 rotates into the horizontal channel. Then, the output end of the linear drive 61 moves downward, driving the locking rod 69 downward. The locking rod 69 abuts against the horizontal wall of the horizontal channel, driving the locking cylinder 68 downward. The locking cylinder 68 drives the striking component 67 downward, and the striking component 67 squeezes the striking power storage component 62. The striking power storage component 62 stores power, and the striking component strikes simultaneously. The striking element 67 drives the impact element 64 to move downward through the linkage element 66. The impact element 64 presses against the impact accumulator 65, and the impact accumulator 65 accumulates power. When the fastening rod 69 moves downward to the position of the release element 63 and continues to move, the fastening rod 69 abuts against the top inclined surface of the release element 63 and rotates under the action of the inclined surface of the release element 63, so that the fastening rod 69 rotates from the horizontal channel to the vertical channel. The fastening cylinder 68 loses the limit of the fastening rod 69. The striking accumulator 62 resets and drives the striking element 67 to move upward. The striking element 67 strikes the filter cloth belt 52. The impact accumulator 65 drives the impact element 64 to move upward. The impact element 64 strikes the dust filter plate 31.

[0055] Preferably, the linear drive 61 is a cylinder in the prior art, and the output end of the linear drive 61 moves periodically vertically.

[0056] Furthermore, referring to Figures 1-11 The dust filtration unit 3 also includes a dust filtration funnel 32, a dust filtration pipe 33, and a dust filtration sleeve 34. The dust filtration funnel 32 is located below the dust filtration plate 31 and is located on the side of the spray unit 4 away from the transmission device 1. The dust filtration pipe 33 is fixedly connected to the bottom of the dust filtration funnel 32. One end of the dust filtration sleeve 34 is fixedly installed on the top of the dust filtration funnel 32, and the other end of the dust filtration sleeve 34 is fixedly installed on the bottom of the dust filtration plate 31.

[0057] The aggregate moves on the front half of the dust filter plate 31. Dust falls through the filter holes on the dust filter plate 31 into the dust filter funnel 32 and is discharged out through the dust filter pipe 33. This can separate the dust in the aggregate, reduce the difficulty of subsequent spray cleaning of the aggregate, improve the effect of subsequent spray cleaning of the aggregate, and save spray cleaning water. The dust filter funnel 32 is fixedly installed to the dust filter plate 31 by the dust filter sleeve 34. When the dust filter plate 31 vibrates, the dust filter sleeve 34 can expand and contract, so that the vibration of the dust filter plate 31 will not be transmitted to the dust filter funnel 32, ensuring the stability of the dust filter funnel 32. The dust filter funnel 32 will not restrict the vibration of the dust filter plate 31, ensuring the large amplitude vibration of the dust filter plate 31.

[0058] Preferably, the dust filter sleeve 34 is made of rubber.

[0059] Furthermore, referring to Figures 1-11 The spray unit 4 also includes several diversion pipes 42, a water supply pipe 43, a spray funnel 44, and a spray sleeve 45. The spray funnel 44 is located above the filter cloth belt 52. One end of the spray sleeve 45 is fixedly installed on the top of the spray funnel 44, and the other end of the spray sleeve 45 is fixedly installed on the bottom of the dust filter plate 31. Several diversion pipes 42 are fixedly connected to the water supply pipe 43, and several spray heads 41 are fixedly connected to the corresponding diversion pipes 42.

[0060] Water supply pipe 43 is connected to a pressurized external water source. Water supply pipe 43 supplies water to spray head 41 through diversion pipe 42. Spray head 41 sprays the aggregate. The cleaning water falls onto filter cloth belt 52 through spray funnel 44. Spray funnel 44 restrains the cleaning water to prevent it from spreading and falling to other positions, ensuring that the cleaning water falls onto filter cloth belt 52 for filtration. When dust filter plate 31 vibrates, spray sleeve 45 can extend and retract, so that the vibration of dust filter plate 31 is not transmitted to spray funnel 44, ensuring the stability of spray funnel 44. Spray funnel 44 does not restrict the vibration of dust filter plate 31, ensuring large-amplitude vibration of dust filter plate 31.

[0061] Furthermore, referring to Figures 1-11 The separation unit 5 also includes several rotating rollers 53, a rotary driver 54, a scraper 55, a separation funnel 56, a separation water pipe 57, and two side baffles. The two side baffles are arranged on both sides of the filter cloth belt 52. The perforated conveyor belt 51 is arranged on several rotating rollers 53. The rotating rollers 53 are rotatably connected to the side baffles. The rotary driver 54 can drive one of the rotating rollers 53 to rotate. The scraper 55 is fixedly installed on the side baffles and is located at the end of the filter cloth belt 52 away from the dust filter funnel 32. The separation funnel 56 is arranged in the inner ring of the perforated conveyor belt 51. The top of the separation funnel 56 abuts against the perforated conveyor belt 51. The separation water pipe 57 is fixedly connected to the bottom of the separation funnel 56.

[0062] The perforated conveyor belt 51 is made of rubber and has several drainage holes. The two sides of the perforated conveyor belt 51 abut against and are sealed with the side baffles.

[0063] The rotary driver 54 drives one of the rotating rollers 53 to rotate, and the corresponding rotating roller 53 drives the perforated conveyor belt 51 to rotate. The perforated conveyor belt 51 drives the filter cloth belt 52 to rotate. During the movement, the cleaning water falls into the separation funnel 56 through the filter cloth belt 52 and the perforated conveyor belt 51. After entering the separation funnel 56, it enters the separation water pipe 57 and is discharged.

[0064] Preferably, the separation water pipe 57 is connected to one of the external sewage treatment device and the water circulation device, both of which are existing technologies.

[0065] Furthermore, referring to Figures 1-11 Below the filter cloth belt 52, there is a waste residue collection box 7. A support plate 8 is fixedly installed on the waste residue collection box 7 by a support rod. A linear drive component 61 is fixedly installed on the support plate 8. A beat-and-charge component 62 is fixedly installed on the support plate 8. A limit rod is also fixedly installed at the bottom of the beat-and-charge component 67. The limit rod passes through the support plate 8 and slides with the support plate 8. The beat-and-charge component 62 is sleeved on the limit rod. Cleaning doors are provided on both sides of the waste residue collection box 7.

[0066] The sludge on the filter cloth belt 52 is discharged into the waste collection box 7 by the beating component 67. The waste collection box 7 is provided with openable cleaning doors on both sides. The sludge in the waste collection box 7 is cleaned through the cleaning doors. When the beating component 67 moves downward, the beating component 67 drives the limiting rod to move. The limiting rod moves on the support plate 8. The support plate 8 applies a limit to the beating component 67 through the limiting rod to prevent the beating component 67 from shaking and rotating, making the beating component 67 more stable. At the same time, the beating energy storage component 62 is sleeved on the limiting rod to prevent the beating energy storage component 62 from undergoing large-scale lateral deformation when squeezed, thereby improving the service life of the beating energy storage component 62.

[0067] Furthermore, referring to Figures 1-11 The dust suppression assembly 2 also includes a bracket 9, a spray funnel 44 fixedly mounted on a side baffle, the side baffle fixedly mounted on the bracket 9, a support frame 10 fixedly mounted on the bracket 9, several rubber blocks fixedly mounted on the support frame 10, a dust filter plate 31 fixedly mounted on the bottom of the rubber blocks and abutting against the bottom of the support frame 10, several spray heads 41 fixedly mounted on the support frame 10, and a dust filter funnel 32 fixedly mounted on the bracket 9.

[0068] The dust filter plate 31 is installed on the support frame 10 via rubber blocks, without a rigid connection to the support frame 10. This prevents the dust filter plate 31 from transmitting vibrations to the support frame 10, ensuring the stability of the support frame 10. The rubber blocks are installed on top of the dust filter plate 31, and the bottom of the dust filter plate 31 is supported by the support frame 10, preventing the aggregate on the dust filter plate 31 from falling off under stress and ensuring the support of the dust filter plate 31. Furthermore, the impactor 64 impacts the dust filter plate 31 from bottom to top, without obstructing the upward displacement of the dust filter plate 31, resulting in better vibration control of the dust filter plate 31.

[0069] Furthermore, referring to Figures 1-11 A plurality of atomizing nozzles 11 are fixedly installed at one end of the support frame 10 away from the transmission device 1. The plurality of atomizing nozzles 11 are fixedly connected to a connecting pipe, which is fixedly connected to the water supply pipe 43.

[0070] The atomizing nozzle 11 sprays water onto the feeding end of the dust filter plate 31. The water droplets meet and combine with the dust in the air, increasing the weight of the dust. The dust that has absorbed water falls under the action of gravity, thus preventing a large amount of dust from being raised during feeding.

[0071] Furthermore, referring to Figures 1-11 A support frame 12 is fixedly installed on the top of the two side baffles. One end of the impact accumulator 65 is fixedly installed on the support frame 12, and the other end of the impact accumulator 65 is fixedly installed on the impact member 64. A clearance groove is provided on the two side baffles corresponding to the position of the striking member 67. The striking member 67 is set in the clearance groove. A linkage 66 is fixedly installed on the end of the striking member 67. The other end of the linkage 66 passes through the impact member 64 and slides with the impact member 64. An anti-detachment plate is fixedly installed on the end of the linkage 66 away from the striking member 67.

[0072] When the striking element 67 moves downward, it drives the linkage 66 to move, which in turn drives the anti-detachment plate to move downward. The anti-detachment plate abuts against the impact element 64 and drives the impact element 64 to move downward. When the striking energy storage element 62 pushes the striking element 67 upward, the striking element 67 drives the linkage 66 and the anti-detachment plate to move upward. The impact energy storage element 65 drives the impact element 64 to move upward. When the impact element 64 hits the dust filter plate 31, it causes the dust filter plate 31 to vibrate. At this time, the striking element 67 and the linkage 66 can still move upward because the impact element 64 hits the dust filter plate 31, which is made of hard material. The displacement after 31 is small, while the impactor 67 impacts the filter cloth belt 52, which is soft. The displacement after the impactor 67 impacts the filter cloth belt 52 is large. After the impactor 64 stops impacting the dust filter plate 31, the impactor 67 can continue to move. The impactor 67 can impact the filter cloth belt 52 with the maximum amplitude and ensure that the fastening rod 69 can move upward until the fastening rod 69 enters the horizontal channel through the vertical channel, preventing the elastic filter cloth belt 52 from deforming. The fastening cylinder 68 cannot apply force to the fastening rod 69, causing the fastening rod 69 to be unable to rotate. The upward movement of the fastening rod 69 is not restricted by the position of the impactor 64.

[0073] Furthermore, referring to Figures 1-11 The output end of the rotary driver 54 is fixedly equipped with a drive pulley, and one of the several rotating rollers 53 is fixedly equipped with a passive pulley. A connecting belt is connected to the drive pulley and the passive pulley. A movable box 13 is provided below the scraper 55, and a blocking strip 14 is fixedly installed between the two side baffles. The blocking strip 14 is located on the side of the spray funnel 44 away from the transmission device 1.

[0074] The rotary driver 54 drives the active pulley to rotate, which in turn drives the connecting belt to rotate. The connecting belt causes the passive pulley to rotate, which in turn drives the rotating roller 53 to rotate. The rotating roller 53 drives the perforated conveyor belt 51 to rotate, which in turn drives the filter cloth belt 52 to rotate. The sludge scraped off by the scraper 55 falls into the movable box 13. Most of the sludge on the filter cloth belt 52 is scraped off by the scraper 55 and falls into the movable box 13. The movable box 13 is not connected to other components, making it easy to move and transfer, and facilitating sludge treatment. A small portion of the sludge falls into the waste collection box 7 through the beating of the beater 67, reducing the cleaning frequency of the waste collection box 7. The blocking strip 14 blocks the cleaning water, preventing the cleaning water from leaking from the end of the filter cloth belt 52 away from the scraper 55.

[0075] The rotary drive 54 is an electric motor in the prior art.

[0076] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An aggregate dust removal device for a large concrete mixing plant, comprising a conveying device (1), characterized in that: A dust-reducing assembly (2) is provided on one side of the transmission device (1). The dust-reducing assembly (2) includes a dust-filtering unit (3), a spraying unit (4), a separation unit (5), and a vibration unit (6). The dust filter unit (3) includes a dust filter plate (31), which has a plurality of dust filter holes. The dust filter plate (31) is inclined toward the transmission device (1) and extends above one end of the transmission device (1). The spray unit (4) is located on the side of the dust filter plate (31) near the transmission device (1). The spray unit (4) includes a plurality of spray heads (41), which are located above the dust filter plate (31). The spray heads (41) can spray cleaning water, which can carry away the dust in the aggregate on the dust filter plate (31) and let it fall into the separation unit (5). The separation unit (5) includes a perforated conveyor belt (51) and a filter cloth belt (52). The perforated conveyor belt (51) and the filter cloth belt (52) can rotate synchronously. The filter cloth belt (52) is sleeved on the perforated conveyor belt (51). Washing water mixed with dust falls onto the filter cloth belt (52). The washing water falls through the filter cloth belt (52) and the perforated conveyor belt (51). The dust and washing water mix to form sludge. The sludge is left on the filter cloth belt (52) and moves forward with the filter cloth belt (52). The vibration unit (6) includes a linear drive (61), a striking energy storage component (62), a release component (63), an impact component (64), an impact energy storage component (65), a linkage component (66), and a striking component (67). The linear drive (61) can drive the striking component (67) to move downward. The downward movement of the striking component (67) can cause the striking energy storage component (62) to store energy. At the same time, the striking component (67) can drive the impact component (64) to move downward through the linkage component (66). The downward movement of the impact component (64) can cause the impact energy storage component (65) to store energy. The release component (63) can release the striking component (67), so that the striking energy storage component (62) pushes the striking component (67) to strike the filter cloth belt (52). The impact energy storage component (65) pushes the impact component (64) to strike the dust filter plate (31). The separation unit (5) also includes a scraper (55) and two side baffles. The two side baffles are arranged on both sides of the filter cloth belt (52), and the scraper (55) is fixedly installed on the side baffles. A support frame (12) is fixedly installed on the top of the two side baffles. One end of the impact energy storage component (65) is fixedly installed on the support frame (12), and the other end of the impact energy storage component (65) is fixedly installed on the impact component (64). A clearance groove is provided on the two side baffles corresponding to the position of the striking component (67). The striking component (67) is set in the clearance groove. The linkage component (66) is fixedly installed on the end of the striking component (67). The other end of the linkage component (66) passes through the impact component (64) and slides with the impact component (64). An anti-detachment plate is fixedly installed on the end of the linkage component (66) away from the striking component (67).

2. The aggregate dust removal device for a large concrete mixing plant according to claim 1, characterized in that: The vibration unit (6) further includes a fastening cylinder (68) and a fastening rod (69). The striking component (67) is located at the bottom of the filter cloth belt (52). The striking energy storage component (62) is fixedly installed at the bottom of the striking component (67). The fastening cylinder (68) is fixedly installed at the bottom of the striking component (67). The fastening cylinder (68) has a vertical channel and a horizontal channel. The horizontal channel is connected to the bottom of the vertical channel. The bottom of the vertical channel is inclined towards the horizontal channel. The fastening rod (69) is rotatably connected to the linear drive component ( At the output end of 61), the linear drive (61) moves upward and drives the fastening rod (69) to move, so that the fastening rod (69) rotates through the vertical channel to the horizontal channel. When the linear drive (61) moves downward, it can drive the fastening cylinder (68) to move through the fastening rod (69). The top of the release member (63) is inclined. After the fastening rod (69) moves to the position of the release member (63) and continues to move, the fastening rod (69) rotates from the horizontal channel to the vertical channel under the action of the inclined surface of the release member (63).

3. The aggregate dust removal device for a large-scale concrete mixing plant according to claim 1, characterized in that: The dust filtration unit (3) further includes a dust filtration funnel (32), a dust filtration tube (33), and a dust filtration sleeve (34). The dust filtration funnel (32) is located below the dust filtration plate (31) and is located on the side of the spray unit (4) away from the transmission device (1). The dust filtration tube (33) is fixedly connected to the bottom of the dust filtration funnel (32). One end of the dust filtration sleeve (34) is fixedly installed on the top of the dust filtration funnel (32), and the other end of the dust filtration sleeve (34) is fixedly installed on the bottom of the dust filtration plate (31).

4. The aggregate dust removal device for a large concrete mixing plant according to claim 3, characterized in that: The spray unit (4) also includes several diversion pipes (42), a water supply pipe (43), a spray funnel (44), and a spray sleeve (45). The spray funnel (44) is located above the filter cloth belt (52). One end of the spray sleeve (45) is fixedly installed on the top of the spray funnel (44), and the other end of the spray sleeve (45) is fixedly installed on the bottom of the dust filter plate (31). Several diversion pipes (42) are fixedly connected to the water supply pipe (43), and several spray heads (41) are fixedly connected to the corresponding diversion pipes (42).

5. The aggregate dust removal device for a large concrete mixing plant according to claim 4, characterized in that: The separation unit (5) also includes several rotating rollers (53), a rotary driver (54), a separation funnel (56), and a separation water pipe (57). The perforated conveyor belt (51) is arranged on several of the rotating rollers (53). The rotating rollers (53) are rotatably connected to the side baffle. The rotary driver (54) can drive one of the rotating rollers (53) to rotate. The scraper (55) is located at the end of the filter cloth belt (52) away from the dust filter funnel (32). The separation funnel (56) is arranged in the inner ring of the perforated conveyor belt (51). The top of the separation funnel (56) abuts against the perforated conveyor belt (51). The separation water pipe (57) is fixedly connected to the bottom of the separation funnel (56).

6. The aggregate dust removal device for a large concrete mixing plant according to claim 1, characterized in that: A waste collection box (7) is provided below the filter cloth belt (52). A support plate (8) is fixedly installed on the waste collection box (7) by a support rod. The linear drive component (61) is fixedly installed on the support plate (8). The beat-up energy storage component (62) is fixedly installed on the support plate (8). A limit rod is also fixedly installed at the bottom of the beat-up component (67). The limit rod passes through the support plate (8) and slides with the support plate (8). The beat-up energy storage component (62) is sleeved on the limit rod. Cleaning doors are provided on both sides of the waste collection box (7).

7. The aggregate dust removal device for a large concrete mixing plant according to claim 4, characterized in that: The dust suppression assembly (2) also includes a bracket (9), the spray funnel (44) is fixedly installed on the side baffle, the side baffle is fixedly installed on the bracket (9), a support frame (10) is fixedly installed on the bracket (9), a number of rubber blocks are fixedly installed on the support frame (10), the dust filter plate (31) is fixedly installed at the bottom of the rubber blocks and abuts against the bottom of the support frame, a number of spray heads (41) are fixedly installed on the support frame (10), and the dust filter funnel (32) is fixedly installed on the bracket (9).

8. The aggregate dust removal device for a large concrete mixing plant according to claim 7, characterized in that: A plurality of atomizing nozzles (11) are fixedly installed at one end of the support frame (10) away from the transmission device (1), and the plurality of atomizing nozzles (11) are fixedly connected to a connecting pipe, which is fixedly connected to the water supply pipe (43).

9. A dust removal device for aggregates in a large concrete mixing plant according to claim 5, characterized in that: The output end of the rotary driver (54) is fixedly equipped with an active pulley, and one of the several rotating rollers (53) is fixedly equipped with a passive pulley. A connecting belt is connected to the active pulley and the passive pulley. A movable box (13) is provided below the scraper (55), and a blocking strip (14) is fixedly installed between the two side baffles. The blocking strip (14) is located on the side of the spray funnel (44) away from the transmission device (1).

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