Dust fall system for concrete factory

Abstract

The invention relates to a dust fall system for a concrete plant, which belongs to the technical field of dust fall, and comprises a dust fall system arranged at the top of a stock bin, and the dust fall system is used for spraying water mist to combine with dust; the dust falling system further comprises a pneumatic part arranged on the partition wall of the stock bin, and the pneumatic part is used for supplying air to the top of the stock bin to form an air wall on the partition wall so as to prevent dust from spreading into the adjacent stock bin. The dust falling system further comprises an absorption pipe and an air pump which are arranged on the partition wall, the air pump is arranged on the absorption pipe, an air inlet is formed in the side face of the absorption pipe, and the air pump is used for generating a negative pressure state in the absorption pipe and guiding spraying water mist and dust combination to enter the absorption pipe through the air inlet and flow out of the stock bin along the absorption pipe. The device has the effect of improving the cleanliness of the aggregate.

Description

Technical Field

[0001] The present application relates to the technical field of dust reduction, and in particular to a dust reduction system for a concrete plant. Background Art

[0002] Concrete is a general term for engineering composite materials that are made by bonding aggregates into a whole with cementitious materials. Concrete is made by using cement as a cementitious material, sand and stone as aggregates, and mixing them with water in a certain proportion. Concrete is widely used in the construction industry because of its abundant raw materials, low price, simple production process, high compressive strength, good durability, and a wide range of strength grades.

[0003] Concrete materials are transported to the concrete plant by dump trucks and then dumped into concrete silos. When the materials are tilted, the dust attached to the materials will diffuse into the air, causing a large amount of dust. Therefore, it is necessary to build a dust reduction system in the silo to carry out dust reduction treatment in the silo. When the spray system is carrying out dust reduction in the silo, water is usually introduced into a main water pipe, and the water is distributed to multiple spray pipes through the water pipe and atomized. After that, the atomized water is discharged into the silo through the spray pipe to reduce dust in the silo.

[0004] However, the atomized dust suppression water combines with the dust and falls into the silo and onto the aggregate, causing the sand content, water content and soil content of the aggregate to exceed the standard significantly. When the above aggregate is used in the project, the strength of the concrete project will not meet the standard. Summary of the invention

[0005] In order to improve the cleanliness of aggregate, the present application provides a dust reduction system for a concrete plant.

[0006] The concrete plant dust reduction system provided in this application adopts the following technical solution: A dust reduction system for a concrete plant, including a dust reduction system arranged on the top of a silo, the dust reduction system is used to spray a combination of water mist and dust; the dust reduction system also includes a pneumatic member arranged on the partition wall of the silo, the pneumatic member is used to supply air to the top of the silo and form a wind wall on the partition wall to prevent dust from spreading to adjacent silos; the dust reduction system also includes an absorption pipe and an air pump arranged on the partition wall, the air pump is arranged on the absorption pipe, an air inlet is opened on the side of the absorption pipe, the air pump is used to generate a negative pressure state in the absorption pipe, and guide the sprayed water mist and dust combination into the absorption pipe through the air inlet, and flow along the absorption pipe to the outside of the silo.

[0007] Optionally, the pneumatic component includes an air duct arranged on the partition wall, the air duct is arranged along the length direction of the partition wall, a plurality of air outlet gaps are opened on the air duct, the air outlet gaps are opened along the length direction of the air duct, and the pneumatic component also includes an air compressor arranged on the partition wall, the air compressor is connected to the air duct, the air compressor is used to pass compressed air into the air duct and spray it out from the air outlet gaps, thereby forming a continuous wind wall between the partition wall and the top of the silo.

[0008] Optionally, there are multiple absorption pipes, and they are respectively located on the partition walls on both sides. The absorption pipes on a single partition wall are evenly arranged along the length direction of the partition wall. The absorption pipes are hinged on the top of the partition wall, and the hinge axis of the absorption pipes is parallel to the length direction of the partition wall. The dust reduction system also includes a first driving member located above the silo for driving the absorption pipe to rotate.

[0009] Optionally, a mounting shaft is rotatably provided on the partition wall, the absorption tube is fixedly provided on the mounting shaft, the first driving member includes a driving motor, a worm and a worm wheel, the driving motor is fixedly provided on the partition wall, the worm is coaxially provided on the output shaft of the driving motor, and the worm wheel is sleeved on the mounting shaft and meshes with the worm.

[0010] Optionally, a water supply pipe is provided on the absorption tube, and the water supply pipe is attached to the bottom of the absorption tube. One end of the water supply pipe is connected to the spray system, and the other end is connected to the absorption tube. The connecting end of the water supply pipe and the absorption tube is located at the end of the absorption tube away from the partition wall. Part of the spray water of the spray system enters the absorption tube through the water supply pipe, thereby driving the mixture entering the absorption tube to flow.

[0011] Optionally, a clamping plate is provided on the absorption tube, and two clamping plates are provided and both are arc-shaped plates. The two clamping plates are hinged to each other, and the hinge axis of the clamping plates is parallel to the length direction of the absorption tube. The two clamping plates rotate close to clamp the absorption tube to close the air inlet, and a second driving member for driving the two clamping plates to rotate is provided on the absorption tube.

[0012] Optionally, an arc-shaped protrusion is provided on the clamping surface of the clamping plate, and the arc-shaped protrusion corresponds to the air inlet one by one to open and close the air inlet.

[0013] Optionally, a mounting rod is rotatably arranged in the absorption tube, the length direction and the rotation axis of the mounting rod are parallel to the length direction of the absorption tube, the mounting rod is provided with a plurality of stirring plates, and a stirring motor for driving the mounting rod to rotate is provided at the end of the absorption tube away from the partition wall.

[0014] Optionally, the stirring plate includes a mounting ring and a plate body arranged on the mounting ring, the mounting ring is rotatably sleeved on the mounting rod, the mounting rod is sleeved with a spring, one end of the spring is fixedly arranged on the mounting rod, and the other end is fixedly arranged on the mounting ring, when the spring is in a natural state, the plate body is in a vertical state, and the spring drives the mounting ring to have the same rotation tendency as the mounting rod.

[0015] Optionally, a connecting hose is provided at the end of the absorption pipe, and the connecting hose is connected to the rainwater recovery system of the concrete plant. A valve is provided on the absorption pipe near the connecting hose, and the valve is used to open and close the connection between the absorption pipe and the connecting hose.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the dump truck enters the silo to unload, it first forms a continuous wind wall between the partition wall and the top of the silo through the pneumatic parts, then starts the air pump, and then sprays water mist through the dust reduction system, and then carries out the unloading operation. The dust generated during the unloading process rises and combines with the water mist, and then falls. When the mixture falls, under the action of the negative pressure of the absorption pipe, the mixture enters the absorption pipe, and then flows along the absorption pipe to the outside of the silo, thereby reducing the possibility of the mixture falling on the aggregate and improving the cleanliness of the aggregate; under the action of the wind wall, the possibility of dust diffusing from the silo is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a dust reduction system for a concrete plant area according to an embodiment of the present application; Figure 2 This is a schematic diagram of the interior of a silo in a dust reduction system in a concrete plant area in an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of an absorption pipe in a dust reduction system in a concrete plant area according to an embodiment of the present application; Figure 4 yes Figure 2 A magnified schematic diagram of part A; Figure 5 It is a structural schematic diagram of an installation rod in a dust reduction system in a concrete plant area in an embodiment of the present application.

[0018] Description of reference numerals: 1. silo; 2. dust suppression system; 3. Pneumatic parts; 31. Air duct; 32. Air outlet; 33. Air compressor; 4. Absorption tube; 5. Air pump; 6. Air inlet; 7. Mounting shaft; 8. Driving motor; 9. Worm; 10. Worm wheel; 11. Water supply pipe; 12. Clamping plate; 13. Rotating motor; 14. Arc-shaped protrusion; 15. Mounting rod; 16. Stirring plate; 161. Mounting ring; 162. Plate body; 163. Spring; 17. Stirring motor; 18. Partition wall. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-5 This application is described in further detail.

[0020] The present application embodiment discloses a dust reduction system for a concrete plant. Figure 1 , Figure 2 and Figure 3 The dust reduction system of the concrete plant includes a dust reduction system 2 arranged on the top of the silo 1, and the dust reduction system 2 is used for spraying water mist combined with dust; the dust reduction system 2 also includes a pneumatic member 3 arranged on the partition wall 18 of the silo 1, and the pneumatic member 3 is used for supplying air to the top of the silo 1 and forming a wind wall on the partition wall 18 to prevent dust from spreading to the adjacent silo 1; the dust reduction system 2 also includes an absorption pipe 4 and an air pump 5 arranged on the partition wall 18, the air pump 5 is arranged on the absorption pipe 4, and an air inlet 6 is opened on the side of the absorption pipe 4, and the air pump 5 is used to generate a negative pressure state in the absorption pipe 4, and guide the spray water mist and dust combination into the absorption pipe 4 through the air inlet 6, and flow along the absorption pipe 4 to the outside of the silo 1.

[0021] When the dump truck enters the silo 1 to unload, it first forms a continuous wind wall between the partition wall 18 and the top of the silo 1 through the pneumatic part 3, then starts the air pump 5, and then sprays water mist through the dust reduction system 2, and then performs the unloading operation. The dust generated during the unloading process rises, combines with the water mist, and falls. When the mixture falls, under the action of the negative pressure of the absorption pipe 4, the mixture enters the absorption pipe 4, and then flows along the absorption pipe 4 to the outside of the silo 1, thereby reducing the possibility of the mixture falling on the aggregate and improving the cleanliness of the aggregate; under the action of the wind wall, the possibility of dust diffusing from the silo 1 is reduced.

[0022] Reference Figure 2 and Figure 4 In the embodiment of the present application, the pneumatic component 3 includes an air duct 31 arranged on the partition wall 18, the air duct 31 is arranged along the length direction of the partition wall 18, a plurality of air outlet gaps 32 are opened on the air duct 31, the air outlet gaps 32 are located at the top of the air duct 31, the air outlet gaps 32 are opened along the length direction of the air duct 31, and are arranged at intervals, the pneumatic component 3 also includes an air compressor 33 arranged on the partition wall 18, the air compressor 33 is connected to the air duct 31, the air compressor 33 is used to pass compressed air into the air duct 31 and eject it from the air outlet gaps 32, thereby forming a continuous wind wall between the partition wall 18 and the top of the silo 1; start the air compressor 33, the air compressor 33 compresses the air, and then passes the compressed air into the air duct 31, and then ejects it from the air outlet gaps 32, thereby forming a continuous wind wall between the partition wall 18 and the top of the silo 1, and the operation is simple and convenient.

[0023] Reference Figure 2In the embodiment of the present application, in order to improve the collection effect of the mixture, a plurality of absorption tubes 4 are provided, and they are respectively located on the partition walls 18 on both sides, and the absorption tubes 4 on the single-side partition wall 18 are evenly arranged along the length direction of the partition wall 18; the absorption tubes 4 are evenly arranged, which reduces the blank space where the absorption tubes 4 act, thereby improving the collection effect of the mixture.

[0024] Reference Figure 2 and Figure 4 In order to reduce the influence of dump truck unloading on the absorption pipe 4, the absorption pipe 4 is hingedly arranged on the top of the partition wall 18, and the hinge axis of the absorption pipe 4 is parallel to the length direction of the partition wall 18. The dust reduction system 2 also includes a first driving member located above the silo 1 for driving the absorption pipe 4 to rotate. A mounting shaft 7 is rotatably arranged on the partition wall 18, and the absorption pipe 4 is fixedly arranged on the mounting shaft 7. The first driving member includes a driving motor 8, a worm 9 and a worm wheel 10. The driving motor 8 is fixedly arranged on the partition wall 18, and the worm 9 is coaxially arranged on the output shaft of the driving motor 8. The worm wheel 10 is sleeved on the mounting shaft 7 and is connected to the worm wheel 10. 9 mesh with each other; before the dump truck enters the silo 1, the absorption pipe 4 is in a vertical state. When the hopper of the dump truck is tilted to unload, the drive motor 8 is started, and the drive motor 8 drives the worm 9 to rotate. The rotation of the worm 9 drives the worm wheel 10 to rotate. The rotation of the worm wheel 10 drives the installation shaft 7 to rotate. The rotation of the installation shaft 7 drives the absorption pipe 4 to rotate toward the silo 1 and tilt in the silo 1, so as to collect the mixture. In the above process, the influence of the absorption pipe 4 on the unloading of the dump truck is reduced; further, when the loader shovels aggregate, the absorption pipe 4 is located in the silo 1, which is convenient for collecting the generated mixture.

[0025] Reference Figure 3 After the mixture enters the absorption tube 4, due to its high concentration, it is easy to make it difficult for the mixture to flow in the absorption tube 4. Therefore, in the embodiment of the present application, a water supply pipe 11 is provided on the absorption tube 4. The water supply pipe 11 is attached to the bottom of the absorption tube 4. One end of the water supply pipe 11 is connected to the spray system, and the other end is connected to the absorption tube 4. The connecting end of the water supply pipe 11 and the absorption tube 4 is located at the end of the absorption tube 4 away from the partition wall 18. Part of the spray water of the spray system enters the absorption tube 4 through the water supply pipe 11, thereby driving the mixture entering the absorption tube 4 to flow; under the action of the spray system, part of the spray water enters the absorption tube 4 through the water supply pipe 11, and the spray water entering the absorption tube 4 floods the absorption tube 4 and flows, thereby driving the mixture to flow, thereby facilitating the removal of the mixture and reducing the possibility of blockage of the air inlet 6.

[0026] Reference Figure 3Furthermore, in order to improve the removal effect of the mixture in the absorption tube 4, a clamping plate 12 is provided on the absorption tube 4. The clamping plates 12 are provided with two and both are arc-shaped plates. The two clamping plates 12 are hinged to each other. The hinge axis of the clamping plates 12 is parallel to the length direction of the absorption tube 4. The two clamping plates 12 rotate close to clamp the absorption tube 4 to close the air inlet 6. The absorption tube 4 is provided with a second driving member for driving the two clamping plates 12 to rotate. The second driving member is provided with a rotating motor 13 for driving the clamping plates 12 to rotate. The hinge axis of the clamping plate 12 is coaxially arranged on the output shaft of the rotating motor 13; after the absorption tube 4 absorbs the mixture for a period of time, the rotating motor 13 is started, and the rotating motor 13 drives the clamping plate 12 to rotate and buckle on the absorption tube 4, and then water is injected into the absorption tube 4. The absorption tube 4 after water injection soaks the dry mixture so that the mixture is melted into water again to facilitate the removal of the mixture.

[0027] Reference Figure 3 In order to improve the sealing effect of the clamping plate 12 on the absorption tube 4, an arc-shaped protrusion 14 is provided on the clamping surface of the clamping plate 12. The arc-shaped protrusion 14 corresponds to the air inlet 6 one by one, and opens and closes the air inlet 6; when the clamping plate 12 is buckled with the absorption tube 4, the arc-shaped protrusion 14 is stuck in the air inlet 6, thereby reducing the possibility of the soaking water overflowing.

[0028] Reference Figure 3 and Figure 5 In order to further facilitate the removal of the mixture in the absorption tube 4, a mounting rod 15 is rotatably arranged in the absorption tube 4. The length direction and the rotation axis of the mounting rod 15 are parallel to the length direction of the absorption tube 4. The mounting rod 15 is provided with a plurality of stirring plates 16. The end of the absorption tube 4 away from the partition wall 18 is provided with a stirring motor 17 for driving the mounting rod 15 to rotate; when the absorption tube 4 is filled with water, the stirring motor 17 is started, the stirring motor 17 drives the mounting rod 15 to rotate, and the rotation of the mounting rod 15 drives the stirring plate 16 to rotate, and the stirring plate 16 stirs the injected water to separate the mixture attached to the absorption tube 4, thereby facilitating the removal of the mixture.

[0029] Reference Figure 3 and Figure 5In order to reduce the obstruction of the stirring plate 16 to the air inlet 6, when the end of the stirring plate 16 is facing the air inlet 6, the stirring plate 16 has an obstructive effect on the air inlet 6. Therefore, in the embodiment of the present application, the stirring plate 16 is set on one side and is located on the same straight line. The stirring plate 16 includes a mounting ring 161 and a plate body 162 set on the mounting ring 161. The mounting ring 161 is rotatably sleeved on the mounting rod 15. The mounting rod 15 is sleeved with a spring 163. One end of the spring 163 is fixedly set on the mounting rod 15, and the other end is fixedly set on the mounting ring 161. When the spring 163 is in a natural state, the plate body 162 is in a vertical state. The spring 163 drives the mounting ring 161 to have the same rotation trend as the mounting rod 15; under the action of the spring 163, the stirring plate 16 is in a vertical state in the natural state, thereby reducing the obstruction of the stirring plate 16 to the air inlet 6.

[0030] Reference Figure 1 In the embodiment of the present application, a connecting hose is provided at the end of the absorption pipe 4, and the connecting hose is connected to the rainwater recovery system of the concrete plant. Under the action of the connecting hose, the mixture can be easily removed from the silo 1; a valve is provided on the absorption pipe 4 and close to the connecting hose. The valve is used to open and close the connection between the absorption pipe 4 and the connecting hose. Under the action of the valve, the connecting hose can be easily replaced and the absorption pipe 4 can be easily filled with water.

[0031] The implementation principle of a dust reduction system in a concrete plant area in the present application embodiment is as follows: When the dump truck enters the silo 1 to unload, it first forms a continuous wind wall between the partition wall 18 and the top of the silo 1 through the air compressor 33, then starts the air pump 5, and then sprays water mist through the dust reduction system 2, and then performs the unloading operation. The dust generated during the unloading process rises, combines with the water mist, and falls. When the mixture falls, under the action of the negative pressure of the absorption pipe 4, the mixture enters the absorption pipe 4, and then flows along the absorption pipe 4 to the outside of the silo 1, thereby reducing the possibility of the mixture falling on the aggregate and improving the cleanliness of the aggregate; under the action of the wind wall, the possibility of dust diffusing from the silo 1 is reduced.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust reduction system for a concrete plant, characterized by: The invention comprises a dust reduction system (2) arranged on the top of a silo (1), the dust reduction system (2) being used for spraying a combination of water mist and dust; the dust reduction system (2) also comprises a pneumatic member (3) arranged on a partition wall (18) of the silo (1), the pneumatic member (3) being used for supplying air to the top of the silo (1) and forming a wind wall on the partition wall (18) to prevent dust from spreading into an adjacent silo (1); the dust reduction system (2) also comprises an absorption pipe (4) and an air pump (5) arranged on the partition wall (18), the air pump (5) being arranged on the absorption pipe (4), an air inlet (6) being provided on the side of the absorption pipe (4), the air pump (5) being used for generating a negative pressure state in the absorption pipe (4), thereby guiding the sprayed water mist and dust combination to enter the absorption pipe (4) through the air inlet (6), and flowing along the absorption pipe (4) to the outside of the silo (1).

2. A dust reduction system for a concrete plant according to claim 1, characterized in that: The pneumatic component (3) includes an air duct (31) arranged on the partition wall (18), the air duct (31) is arranged along the length direction of the partition wall (18), a plurality of air outlet notches (32) are opened on the air duct (31), and the air outlet notches (32) are opened along the length direction of the air duct (31). The pneumatic component (3) also includes an air compressor (33) arranged on the partition wall (18), the air compressor (33) is connected to the air duct (31), and the air compressor (33) is used to pass compressed air into the air duct (31) and eject it from the air outlet notches (32), thereby forming a continuous wind wall between the partition wall (18) and the top of the silo (1).

3. A dust reduction system for a concrete plant according to claim 1, characterized in that: There are multiple absorption pipes (4), which are respectively located on the partition walls (18) on both sides. The absorption pipes (4) on one side of the partition wall (18) are evenly arranged along the length direction of the partition wall (18). The absorption pipes (4) are hingedly arranged on the top of the partition wall (18), and the hinge axis of the absorption pipe (4) is parallel to the length direction of the partition wall (18). The dust reduction system (2) also includes a first driving member located above the silo (1) for driving the absorption pipe (4) to rotate.

4. A dust reduction system for a concrete plant according to claim 3, characterized in that: A mounting shaft (7) is rotatably arranged on the partition wall (18), the absorption tube (4) is fixedly arranged on the mounting shaft (7), the first driving member comprises a driving motor (8), a worm (9) and a worm wheel (10), the driving motor (8) is fixedly arranged on the partition wall (18), the worm (9) is coaxially arranged on the output shaft of the driving motor (8), and the worm wheel (10) is sleeved on the mounting shaft (7) and meshes with the worm (9).

5. A dust reduction system for a concrete plant according to claim 1, characterized in that: The absorption tube (4) is provided with a water supply pipe (11), the water supply pipe (11) being attached to the bottom of the absorption tube (4), one end of the water supply pipe (11) being connected to the spray system, and the other end being connected to the absorption tube (4), the connecting end of the water supply pipe (11) and the absorption tube (4) being located at the end of the absorption tube (4) away from the partition wall (18), part of the spray water of the spray system enters the absorption tube (4) through the water supply pipe (11), thereby driving the mixture entering the absorption tube (4) to flow.

6. A dust reduction system for a concrete plant according to claim 5, characterized in that: The absorption tube (4) is provided with a clamping plate (12), and the clamping plates (12) are provided with two and both are arc-shaped plates. The two clamping plates (12) are hinged to each other, and the hinge axis of the clamping plates (12) is parallel to the length direction of the absorption tube (4). The two clamping plates (12) rotate close to clamp the absorption tube (4) to close the air inlet (6), and the absorption tube (4) is provided with a second driving member for driving the two clamping plates (12) to rotate.

7. A dust reduction system for a concrete plant according to claim 6, characterized in that: The clamping surface of the clamping plate (12) is provided with an arc-shaped protrusion (14), and the arc-shaped protrusion (14) corresponds one-to-one with the air inlet (6) to open and close the air inlet (6).

8. A dust reduction system for a concrete plant according to claim 6, characterized in that: A mounting rod (15) is rotatably arranged inside the absorption tube (4); the length direction and the rotation axis of the mounting rod (15) are parallel to the length direction of the absorption tube (4); the mounting rod (15) is provided with a plurality of stirring plates (16); and a stirring motor (17) for driving the mounting rod (15) to rotate is provided at the end of the absorption tube (4) away from the partition wall (18).

9. A dust reduction system for a concrete plant according to claim 8, characterized in that: The stirring plate (16) comprises a mounting ring (161) and a plate body (162) arranged on the mounting ring (161); the mounting ring (161) is rotatably sleeved on the mounting rod (15); a spring (163) is sleeved on the mounting rod (15); one end of the spring (163) is fixedly arranged on the mounting rod (15), and the other end is fixedly arranged on the mounting ring (161); when the spring (163) is in a natural state, the plate body (162) is in a vertical state, and the spring (163) drives the mounting ring (161) to have the same rotation tendency as the mounting rod (15).

10. A dust reduction system for a concrete plant according to claim 1, characterized in that: A connecting hose is provided at the end of the absorption pipe (4), and the connecting hose is connected to the rainwater recovery system of the concrete plant. A valve is provided on the absorption pipe (4) and near the connecting hose, and the valve is used to open and close the connection between the absorption pipe (4) and the connecting hose.

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