Batching device for concrete preparation
By designing suction bucket, dust reduction tube and filter box in the concrete preparation batching device, combined with atomized spray head and spiral guide, the problem of dust breeding at the feeding end of the conveyor is solved, and environmental cleaning and operator health are achieved. Protect.
Patent Information
- Application Number
- CN202411796621.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the efficient operation of concrete preparation, a large amount of dust is generated at the discharge end of the conveyor, resulting in environmental pollution and health threats.
A batching device is designed, including a suction bucket, dust reduction tube, filter box and atomization spray head. Dust is sucked in through the exhaust fan. The dust is mixed with water mist and enters the dust reduction tube. The mixing efficiency is improved through the spiral guide and the annular tube. Finally it is purified in the filter box.
Effectively control the production of dust, ensure the environment is clean and protect the health of operators, significantly reducing the risk of respiratory diseases and skin irritation.
Smart Images
Figure CN119283198A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of concrete preparation, and in particular relates to a batching device for concrete preparation. Background Art
[0002] Batching device for concrete preparation usually refers to the part of concrete preparation equipment used for batching. It is responsible for weighing and mixing raw materials such as cement, sand and gravel aggregates, water and admixtures according to a certain mix ratio. It is a key link in concrete production. Batching device for concrete preparation is a device specially used in the concrete preparation process to accurately weigh and proportion various raw materials according to a certain ratio. Its main functions include storing raw materials, accurately weighing, mixing according to proportion, and conveying the mixed concrete materials to the mixer for further mixing.
[0003] During the efficient operation of the batching device for concrete preparation, the unloading end of its built-in conveyor often becomes a key area for dust breeding. As production activities continue, the dust problem gradually becomes prominent, especially under long-term and high-intensity operations, a thick layer of dust often accumulates around the equipment. This dust is not only composed of tiny particles in the raw materials of concrete, but may also contain other harmful components, such as silicates in cement and chemical residues in admixtures.
[0004] The accumulation of dust not only seriously damages the cleanliness and hygiene of the production environment, but also brings visual distress to operators. More importantly, it may also pose a serious and lasting potential threat to the health of surrounding operators. Operators who are exposed to dust for a long time may inhale a large amount of dust particles, which can penetrate into the lungs and cause respiratory diseases such as pneumoconiosis and bronchitis. In addition, dust may also irritate the skin, causing skin inflammation or allergic reactions. Dust is also a threat to the eyes, which may cause dry eyes, fatigue, and even eye diseases such as conjunctivitis. Summary of the invention
[0005] The purpose of the present invention is to provide a batching device for concrete preparation, aiming to solve the problem that during the efficient operation of the batching device for concrete preparation, the unloading end of the built-in conveyor often becomes a key area for dust breeding. With the continuous progress of production activities, the dust problem has gradually become prominent, especially under long-term and high-intensity operations, a thick layer of dust often accumulates around the equipment. These dusts are not only composed of tiny particles in the raw materials of concrete, but may also contain other harmful components, such as silicates in cement and chemical residues in admixtures.
[0006] To achieve the above object, the present invention provides the following technical solution: a batching device for concrete preparation, comprising a frame, three quantitative feeding hoppers are installed on the top of the frame, a conveyor is arranged at the bottom of the quantitative feeding hopper, a suction hopper is arranged at the top of the unloading end of the conveyor, and the top of the suction hopper is connected to a first connecting pipe; The other end of the first connecting pipe is connected to a dust suppression pipe, one side of the dust suppression pipe is connected to a water receiving pipe, the bottom of the dust suppression pipe is connected to a second connecting pipe, the other end of the second connecting pipe is connected to a filter box, and one side of the filter box is connected to an exhaust fan.
[0007] In order to enable the suction hopper to effectively absorb the dust generated at the unloading end of the conveyor when it is working, as a preferred batching device for concrete preparation of the present invention, the upper end opening of the suction hopper penetrates and is embedded in the central area of the mounting plate, and a bracket is installed at each end of the mounting plate. The two brackets are located on both sides of the unloading end of the conveyor, and a filter is installed inside the filter box. The large mouth end of the suction hopper is opposite to the unloading end of the conveyor.
[0008] In order to extend the time that the extracted dust passes through the dust reduction pipe, as a preferred batching device for concrete preparation of the present invention, a spiral guide is provided inside the dust reduction pipe, a docking rod is installed at the bottom of the spiral guide, one end of the docking rod is fixedly installed on the inner wall of the dust reduction pipe, the dust reduction pipe is docked with the second connecting pipe through a bottom ring, a circle of inclined holes is evenly spaced on the outer wall of the bottom ring, the higher opening end of the inclined holes is opposite to the outer hoop ring, and an inner bucket is fixedly installed inside the outer hoop ring; The outer wall of the outer hoop ring on the side opposite to the inclined hole is an arc-shaped structure, and the lowest end of the arc-shaped outer wall of the outer hoop ring is connected to the opening of the inclined hole, and the through hole of the inner bucket is located at the bottom of the spiral guide.
[0009] In order to mix the dust and water mist inside the dust suppression pipe, as a preferred batching device for concrete preparation of the present invention, the water receiving pipe and the dust suppression pipe connecting end are connected to the inside of the dust suppression pipe, and three annular pipes are embedded and installed inside the dust suppression pipe. One end of the water receiving pipe connected to the inside of the dust suppression pipe is connected to the lowest annular pipe; The three annular tubes are interconnected through a central through tube, and a group of atomizing nozzles are installed at equal intervals on the inner wall of each annular tube.
[0010] In order to discharge the accumulated water inside the dust suppression pipe, as a preferred batching device for concrete preparation of the present invention, a water receiving sleeve is fixedly sleeved on the outer wall of the second connecting pipe close to the connection end with the dust suppression pipe, a circle of water storage tank is provided on the surface of the water receiving sleeve, and a drainage pipe is installed through the outer wall of one side of the water receiving sleeve; The drainage pipe penetrates the outer wall of the second connecting pipe and is connected with the interior of the water storage tank. The surface of the inner ring of the water receiving sleeve is an arc structure, and the surface of the inner ring of the water receiving sleeve is located at the bottom of the inclined hole.
[0011] Compared with the prior art, the present invention has the following beneficial effects: After the quantitative feeder releases the preset concrete preparation raw materials to the conveyor, the conveyor continues to transport these mixtures to the next process. During this process, a significant amount of dust is generated at the unloading end of the conveyor. At this time, the exhaust fan is started, which responds to the dust problem by sucking external air into the suction hopper, so that the dust enters the dust suppression pipe through the suction hopper and the first connecting pipe.
[0012] At the same time, the water pipe on one side of the dust suppression pipe has been connected to the external water pipe, and the water pipe guides the water to the ring pipe. The atomizing nozzle on the ring pipe atomizes the water and sprays it out. When the dust enters the dust suppression pipe, it mixes with the water mist to form a mixed atomized product. Under the action of the airflow, the mixed atomized product will flow to the second connecting pipe and finally enter the filter box for purification.
[0013] In this way, the dust generated when the conveyor unloads materials is effectively controlled, thus ensuring a clean environment around the device when it is running. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a left-side structural schematic diagram of the present invention; Figure 2 It is a right view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the side cross-sectional structure of the dust suppression pipe of the present invention; Figure 4 For the present invention Figure 3 A is a schematic diagram of the enlarged structure; Figure 5 It is a schematic diagram of the water receiving sleeve connection structure of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the filter box of the present invention.
[0015] In the figure: 1. frame; 2. quantitative feeding hopper; 3. conveyor; 4. suction hopper; 41. mounting plate; 42. bracket; 5. first connecting pipe; 6. dust suppression pipe; 61. spiral guide; 62. docking rod; 63. bottom ring; 64. inclined hole; 65. outer hoop; 66. inner hopper; 7. water connecting pipe; 71. annular pipe; 72. atomizing nozzle; 8. second connecting pipe; 81. water connecting sleeve; 82. water storage tank; 83. drain pipe; 9. filter box; 91. filter; 10. exhaust fan. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] See also Figure 1-6 The present invention provides the following technical solutions: A batching device for concrete preparation, comprising a frame 1, three quantitative feeding hoppers 2 are installed on the top of the frame 1, a conveyor 3 is arranged at the bottom of the quantitative feeding hopper 2, a suction hopper 4 is arranged at the top of the unloading end of the conveyor 3, and the top of the suction hopper 4 is connected to a first connecting pipe 5; The other end of the first connecting pipe 5 is connected to the dust reduction pipe 6, one side of the dust reduction pipe 6 is connected to the water receiving pipe 7, the bottom of the dust reduction pipe 6 is connected to the second connecting pipe 8, the other end of the second connecting pipe 8 is connected to the filter box 9, and one side of the filter box 9 is connected to the exhaust fan 10.
[0018] Preferably, the upper opening of the suction bucket 4 penetrates and is embedded in the central area of the mounting plate 41 , and a bracket 42 is respectively installed at both ends of the mounting plate 41 , and the two brackets 42 are located at both sides of the unloading end of the conveyor 3 .
[0019] In specific use, in order to ensure the maximum dust absorption efficiency, the bracket 42 needs to be accurately set on the ground on both sides of the unloading end of the conveyor 3. Then, through adjustment, ensure that the mounting plate 41 at the upper end of the bracket 42 is accurately positioned above the central axis of the conveyor 3.
[0020] After completing the preliminary positioning, the position of the bracket 42 is further fine-tuned until the vertical distance between the mounting plate 41 and the unloading end of the conveyor 3 reaches the optimal value, while ensuring that its levelness meets the installation standards. Such adjustment not only ensures that the suction bucket 4 can be accurately installed above the unloading end of the conveyor 3, but also minimizes the possibility of dust escape, thereby improving the overall efficiency of the dust collection system.
[0021] Preferably: a spiral guide 61 is provided inside the dust removal pipe 6, a docking rod 62 is installed at the bottom of the spiral guide 61, one end of the docking rod 62 is fixedly installed on the inner wall of the dust removal pipe 6, the dust removal pipe 6 is docked with the second connecting pipe 8 through a bottom ring 63, a circle of inclined holes 64 are evenly spaced on the outer wall of the bottom ring 63, the higher opening end of the inclined hole 64 is opposite to the outer hoop 65, and an inner bucket 66 is fixedly installed inside the outer hoop 65; The outer wall of the outer hoop 65 opposite to the inclined hole 64 is an arc-shaped structure, and the lowest end of the arc-shaped outer wall of the outer hoop 65 is connected to the opening of the inclined hole 64 . The through hole of the inner bucket 66 is located at the bottom of the spiral guide 61 .
[0022] In specific use, when dust enters the inner space of the dust suppression pipe 6, a flowing airflow is immediately guided to rotate along the track on the spiral guide 61. This rotation not only drives the movement direction of the airflow, but also makes the dust particles closely follow this spiral path.
[0023] In this process, the fine water mist pre-sprayed from the dust removal pipe 6 fully contacts and mixes with the dust particles moving along the spiral trajectory. Through this design, the mixing time between dust and water mist is significantly extended. Compared with direct collision or simple mixing, this spiral mixing mechanism greatly improves the mixing efficiency of dust and water mist. Therefore, the entire dust removal process is not only more efficient, but also can better ensure that the dust particles are fully wrapped by the water mist and settle down, thereby achieving a more thorough dust removal effect.
[0024] Preferably: the connection end of the water receiving pipe 7 and the dust suppression pipe 6 is connected to the inside of the dust suppression pipe 6, and three annular pipes 71 are embedded and installed inside the dust suppression pipe 6. One end of the water receiving pipe 7 connected to the inside of the dust suppression pipe 6 is connected to the lowest annular pipe 71; The three annular tubes 71 are interconnected through a central through tube, and a group of atomizing nozzles 72 are installed at equal intervals on the inner wall of each annular tube 71 .
[0025] Preferably: a water receiving sleeve 81 is fixedly sleeved on the outer wall of the second connecting pipe 8 near the connecting end with the dust suppression pipe 6, a circle of water storage tank 82 is provided on the surface of the water receiving sleeve 81, and a drainage pipe 83 is installed through the outer wall of one side of the water receiving sleeve 81; The drain pipe 83 penetrates the outer wall of the second connecting pipe 8 and communicates with the interior of the water storage tank 82 . The surface of the inner circle of the water receiving sleeve 81 is an arc structure, and the surface of the inner circle of the water receiving sleeve 81 is located at the bottom of the inclined hole 64 .
[0026] During specific use, in the design of the inner bucket 66, the opening size of the top is deliberately set to be smaller than the diameter of the central round rod of the spiral guide 61. This ingenious design ensures that excess water generated inside the dust removal pipe 6 during the dust removal process cannot directly overflow through the top of the inner bucket 66.
[0027] Instead, the excess water is guided to flow smoothly along the outer wall of the inner bucket 66 until it reaches the narrow space between the outer hoop 65 and the inner wall of the dust suppression pipe 6. Here, the accumulated water is further guided and discharged into the external environment in an orderly and efficient manner through the carefully arranged inclined holes 64 on the outer wall of the dust suppression pipe 6.
[0028] The accumulated water discharged from the inclined hole 64 falls on the inner circle outer wall of the water receiving sleeve 81. The water receiving sleeve 81 effectively collects and guides the accumulated water with its arc-shaped inner circle surface, so that they flow slowly along the inner circle outer wall and finally converge into the water storage tank 82.
[0029] As a key component for collecting and storing accumulated water, the water tank 82 can hold enough accumulated water. When the water level in the water tank 82 gradually rises until it exceeds the connection port of the drain pipe 83, the accumulated water will naturally flow out through the drain pipe 83 and continue to be discharged to the outside. In this process, the dryness and cleanliness of the inside of the dust suppression pipe 6 are ensured, and various problems that may be caused by the retention of accumulated water are avoided.
[0030] In addition, in order to meet the use requirements in different scenarios, an interface is reserved on the water storage tank 82, and an extension pipe can be connected as needed. This allows the accumulated water to be discharged to a designated container or drainage system in a more orderly and convenient manner, further improving the flexibility and practicality of the entire dust suppression device.
[0031] Preferably, a filter 91 is installed inside the filter box 9 , and the large opening end of the suction hopper 4 is opposite to the unloading end of the conveyor 3 .
[0032] During specific use, when the quantitative feeding hopper 2 accurately discharges the preset concrete preparation raw materials onto the conveyor 3, the conveyor 3 is immediately started to stably transport these mixed raw materials to the next production link. However, in this process, the unloading end of the conveyor 3 is often accompanied by the generation of a large amount of dust, which poses a potential threat to the working environment and the surrounding air quality. In order to effectively deal with this problem, this solution designs an intervention mechanism for the exhaust fan 10. Once the dust begins to spread, start the exhaust fan 10, and its strong suction force will continuously draw the external air into the suction hopper 4, thereby guiding the dust through the suction hopper 4 and the first connecting pipe 5 connected thereto, and smoothly enter the internal space of the dust reduction pipe 6.
[0033] At the same time, the water receiving pipe 7 on one side of the dust suppression pipe 6 has been connected to the external water pipe in advance to ensure sufficient water supply. The water receiving pipe 7 guides water to the annular pipe 71, and the annular pipe 71 sprays water evenly in the form of tiny droplets through densely distributed atomizing nozzles 72, forming a fine water mist barrier.
[0034] When the dust enters the dust suppression pipe 6, it will immediately collide with and mix with the water mist to form a heavier mixed atomized product. Under the action of the flowing airflow, the mixed atomized product will continue to flow toward the second connecting pipe 8 and finally enter the filter box 9. In the filter box 9, further processing will ensure that the dust is effectively captured and removed, thereby greatly reducing the amount of dust generated during the unloading process of the conveyor 3.
[0035] Through the above-mentioned carefully designed dust reduction system, not only can the environmental quality during the concrete preparation process be significantly improved, but the health of operators can also be effectively protected.
[0036] 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A batching device for preparing concrete, comprising a frame (1), three quantitative feeding hoppers (2) are installed on the top of the frame (1), and a conveyor (3) is arranged at the bottom of the quantitative feeding hopper (2), characterized in that: A suction hopper (4) is provided at the top of the unloading end of the conveyor (3), and the top of the suction hopper (4) is connected to a first connecting pipe (5); The other end of the first connecting pipe (5) is connected to a dust removal pipe (6), one side of the dust removal pipe (6) is connected to a water receiving pipe (7), the bottom of the dust removal pipe (6) is connected to a second connecting pipe (8), the other end of the second connecting pipe (8) is connected to a filter box (9), and one side of the filter box (9) is connected to an exhaust fan (10).
2. A batching device for preparing concrete according to claim 1, characterized in that: The upper end opening of the suction bucket (4) penetrates and is embedded in the central area of the mounting plate (41), and a bracket (42) is respectively installed at both ends of the mounting plate (41), and the two brackets (42) are located on both sides of the unloading end of the conveyor (3).
3. A batching device for preparing concrete according to claim 1, characterized in that: A spiral guide (61) is provided inside the dust reduction pipe (6), a docking rod (62) is installed at the bottom of the spiral guide (61), and one end of the docking rod (62) is fixedly installed on the inner wall of the dust reduction pipe (6).
4. A batching device for preparing concrete according to claim 1, characterized in that: The dust suppression pipe (6) is butt-jointed with the second connecting pipe (8) via a bottom ring (63); a circle of inclined holes (64) are formed on the outer wall of the bottom ring (63) at equal intervals; the higher opening ends of the inclined holes (64) are opposite to the outer hoop ring (65); an inner bucket (66) is fixedly mounted inside the outer hoop ring (65).
5. A batching device for preparing concrete according to claim 4, characterized in that: The outer wall of the outer hoop (65) on the side opposite to the inclined hole (64) is an arc-shaped structure, and the lowest end of the arc-shaped outer wall of the outer hoop (65) is connected to the opening of the inclined hole (64), and the through hole of the inner bucket (66) is located at the bottom of the spiral guide (61).
6. A batching device for preparing concrete according to claim 1, characterized in that: The connecting end of the water receiving pipe (7) and the dust reduction pipe (6) is connected to the interior of the dust reduction pipe (6), and three annular pipes (71) are embedded and installed inside the dust reduction pipe (6). One end of the water receiving pipe (7) connected to the interior of the dust reduction pipe (6) is connected to the lowest annular pipe (71).
7. A batching device for preparing concrete according to claim 6, characterized in that: The three annular tubes (71) are interconnected via a central through tube, and a group of atomizing nozzles (72) are installed at equal intervals on the inner wall of each annular tube (71).
8. A batching device for preparing concrete according to claim 1, characterized in that: A water receiving sleeve (81) is fixedly sleeved on the outer wall of the second connecting pipe (8) near the connection end with the dust suppression pipe (6), a circle of water storage tanks (82) is provided on the surface of the water receiving sleeve (81), and a drainage pipe (83) is installed through the outer wall of one side of the water receiving sleeve (81).
9. A batching device for preparing concrete according to claim 8, characterized in that: The drainage pipe (83) passes through the outer wall of the second connecting pipe (8) and is connected to the interior of the water storage tank (82). The surface of the inner ring of the water receiving sleeve (81) is an arc-shaped structure, and the surface of the inner ring of the water receiving sleeve (81) is located at the bottom of the inclined hole (64).
10. A batching device for preparing concrete according to claim 1, characterized in that: A filter (91) is installed inside the filter box (9), and the large opening end of the suction hopper (4) is opposite to the unloading end of the conveyor (3).