Dust falling mechanism for concrete aggregate screening machine

Abstract

The utility model discloses a dust falling mechanism for a concrete aggregate screening machine, which relates to the technical field of concrete aggregate screening and comprises a fixing plate mounted on the screening machine through bolts, and a dust suction mechanism for dust suppression is arranged in the fixing plate. The dust collection mechanism comprises a baffle rotationally installed on the screening machine through a hinge, a shell fixedly connected to the baffle, a coarse filter screen fixedly connected to the shell and a sealing baffle clamped to the shell, the sealing baffle is arranged above the coarse filter screen, and a fixing mechanism used for limiting the shell is arranged on the fixing plate. The fixing mechanism comprises fixing holes formed in the top faces of the fixing plates, the top faces of the fixing plates are fixedly connected with water spraying devices, and the number of the fixing plates is two. Through cooperative use of the devices, dust can be effectively adsorbed and filtered, it is ensured that exhausted gas is clean, meanwhile, the motor drives the fan blades to generate suction force, the heating pipe improves the dust falling effect, and the adaptability of the device is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of concrete aggregate screening technology, specifically to a dust suppression mechanism for a concrete aggregate screening machine. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. The term "concrete" usually refers to cement concrete, also known as ordinary concrete, which is made by mixing cement, sand, and stone as aggregates with water in a specific ratio. It is widely used in civil engineering.

[0003] Patent publication number CN209379397U discloses a concrete aggregate screening machine, including a support frame, a screening chamber with an inlet and an outlet, a screen plate rotatably connected inside the screening chamber via a first rotating shaft, and baffles around the screen plate to prevent aggregate from falling off the sides of the screen plate.

[0004] To address the shortcomings of existing screening machines, such as the limitation of only being able to perform screening once and low screening efficiency, the current technology involves dropping the aggregate out of the screening bin immediately after screening. This reduces the accumulation of aggregate in the screening bin and improves the screening efficiency. However, the process of dropping the aggregate generates a large amount of dust, which can affect the health of operators if inhaled, making the machine inconvenient to use.

[0005] Therefore, this utility model provides a dust suppression mechanism for a concrete aggregate screening machine to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a dust suppression mechanism for a concrete aggregate screening machine to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A dust suppression mechanism for a concrete aggregate screening machine includes a fixing plate bolted to the screening machine, and a dust collection mechanism for dust suppression is provided inside the fixing plate.

[0009] The dust collection mechanism includes a baffle mounted on the screening machine via a hinge, a housing fixedly connected to the baffle, a coarse filter fixedly connected to the housing, and a sealing baffle snapped onto the housing. The sealing baffle is positioned above the coarse filter.

[0010] The fixed plate is equipped with a fixing mechanism for limiting the outer shell.

[0011] A further improvement of the present invention is that the fixing mechanism includes a fixing hole on the top surface of the fixing plate, a water spraying device is fixedly connected to the top surface of the fixing plate, there are two fixing plates, and a locking plate is fixedly connected to the top surface of another fixing plate. The fixing plate and the locking plate are movably connected by bolts.

[0012] A further improvement of this utility model is that the dust collection mechanism also includes an electrostatic dust collection net movably connected to the outer shell, and a power device is fixedly connected to the center of the top surface of the baffle.

[0013] The power unit includes a fixed housing, which is fixedly connected to the middle of the top surface of the baffle, and the fixed housing is fixedly connected to one side of the housing. A motor is fixedly connected to the bottom surface of the inner side of the fixed housing.

[0014] A further improvement of this utility model is that: a fan blade is fixedly connected to the output end of the motor, a heating tube is fixedly connected to the inner top surface of the fixed housing, an electrostatic generator is fixedly connected to the side of the fixed housing, and the electrostatic generator is electrically connected to the electrostatic dust collection net.

[0015] A further improvement of the present invention is that the water spraying device includes a pressure pump, which is fixedly connected to one end of the top surface of the fixed plate. An arc-shaped pipe is fixedly connected to the output end of the pressure pump. An atomizing nozzle is fixedly connected to the top surface inside the arc-shaped pipe. A water distribution valve is fixedly connected to the top surface of the arc-shaped pipe. A water distribution valve is fixedly connected to the output end of the water distribution valve.

[0016] A further improvement of this utility model is that: a water distribution pipe is fixedly connected to the output end of the water distribution valve, the water distribution pipe is fixedly connected to the input end of the booster pump, a water inlet is fixedly connected to the input end of the water distribution valve, and a water delivery pipe is fixedly connected to the side of the water inlet.

[0017] A further improvement of this utility model is that the fixing plate is set in an arc shape, and the baffle, coarse filter and electrostatic dust collection screen are all set in an arc shape corresponding to the fixing plate.

[0018] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0019] 1. This utility model, through the setting of a dust collection mechanism, a coarse filter and an electrostatic dust collection net, can effectively adsorb and filter dust, ensuring clean exhaust gas. At the same time, the motor drives the fan blades to generate suction, and the heating tube enhances the dust reduction effect and strengthens the adaptability of the device.

[0020] 2. This utility model uses a pressure pump in the water spray device to spray water mist to reduce dust. This mechanism can be installed on the top surface of the screening machine, which is convenient to adapt to screening machines of different lengths according to actual use needs, thereby improving dust reduction efficiency and enhancing the adaptability of the device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the dust collection mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the power device of this utility model;

[0024] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the water spraying device of this utility model.

[0026] In the diagram: 1. Fixing mechanism; 11. Fixing plate; 12. Fixing hole; 13. Water spraying device; 131. Pressure pump; 132. Arc-shaped pipe; 133. Atomizing nozzle; 134. Water distribution valve; 135. Water inlet; 136. Water supply pipe; 137. Water distribution pipe; 14. Locking plate; 2. Dust collection mechanism; 21. Hinge; 22. Baffle; 23. Coarse filter screen; 24. Bolt; 25. Outer shell; 26. Sealing baffle; 27. Power unit; 271. Fixed outer shell; 272. Motor; 273. Fan blade; 274. Heating tube; 275. Electrostatic generator; 28. Electrostatic dust collection screen. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to embodiments:

[0028] Example 1

[0029] like Figure 1-5 As shown, this utility model provides a dust suppression mechanism for a concrete aggregate screening machine, including a fixing plate 11 installed on the screening machine by bolts 24, and a dust collection mechanism 2 for dust suppression is provided inside the fixing plate 11.

[0030] The dust collection mechanism 2 includes a baffle 22 rotatably mounted on the screening machine via a hinge 21, a housing 25 fixedly connected to the baffle 22, a coarse filter 23 fixedly connected to the housing 25, and a sealing baffle 26 snapped onto the housing 25. The sealing baffle 26 is positioned above the coarse filter 23.

[0031] The fixing plate 11 is provided with a fixing mechanism 1 for limiting the outer shell 25.

[0032] The dust collection mechanism 2 also includes an electrostatic dust collection net 28 movably connected to the housing 25, and a power unit 27 is fixedly connected to the center of the top surface of the baffle 22.

[0033] The device is fixed inside the fixing mechanism 1 by hinge 21 and can move. Baffle 22 can ensure that dust will not be scattered into the air during operation. The power unit 27 can generate suction so that floating dust can pass through the coarse filter screen 23. The electrostatic dust collection screen 28 inside the outer shell 25 can adsorb finer dust and ensure that the gas output by the power unit 27 is relatively clean. When enough dust is adsorbed on the surface of the electrostatic dust collection screen 28, the electrostatic dust collection screen 28 can be removed for cleaning by opening the sealing baffle 26.

[0034] The fixing mechanism 1 includes a fixing hole 12 opened on the top surface of the fixing plate 11. A water spraying device 13 is fixedly connected to the top surface of the fixing plate 11. There are two fixing plates 11. A locking plate 14 is fixedly connected to the top surface of another fixing plate 11. The fixing plate 11 and the locking plate 14 are movably connected by bolts 24.

[0035] The water spraying device 13 includes a pressure pump 131, which is fixedly connected to one end of the top surface of the fixed plate 11. An arc-shaped pipe 132 is fixedly connected to the output end of the pressure pump 131. An atomizing nozzle 133 is fixedly connected to the inner top surface of the arc-shaped pipe 132. A water distribution valve 134 is fixedly connected to the top surface of the arc-shaped pipe 132. A water distribution valve 134 is fixedly connected to the output end of the water distribution valve 134.

[0036] The device is installed on the top surface of the screening machine via the fixing plate 11. The number of devices can be selected according to the length of the screening machine. The hinge 21 moves inside the fixing plate 11. The cooperation between the bolt 24 and the locking plate 14 keeps the device in a closed state during operation. The baffle 22 can be opened for easy cleaning. During operation, water can be supplied to the water distribution valve 134 through the water supply pipe 136. The water distribution valve 134 delivers water to the inside of the pressure pump 131 through the water distribution pipe 137 for pressurization. The water is then sprayed onto the surface of the aggregate through the atomizing nozzle 133 inside the arc-shaped pipe 132. The water supply pipe 136 can also be connected to the input end of another water inlet 135, so that multiple devices can be connected together. At this time, the water inside the water supply pipe 136 will be heated by the fixing mechanism 1, which improves the dust reduction efficiency.

[0037] The power unit 27 includes a fixed housing 271, which is fixedly connected to the middle of the top surface of the baffle 22 and to one side of the housing 25. A motor 272 is fixedly connected to the bottom surface of the inner side of the fixed housing 271.

[0038] A fan blade 273 is fixedly connected to the output end of the motor 272. A heating tube 274 is fixedly connected to the top surface inside the fixed housing 271. An electrostatic generator 275 is fixedly connected to the side of the fixed housing 271. The electrostatic generator 275 is electrically connected to the electrostatic dust collection net 28.

[0039] The motor 272 drives the fan blades 273 to rotate, enabling the device to generate suction. The gas is then discharged through the top opening of the fixed housing 271. The heating tube 274 generates heat, which is transferred to the interior of the fixed mechanism 1 by the gas flow of the fan blades 273. This heat is then applied to the interior of the fixed mechanism 1, giving it a certain amount of heat. Since hot water has a better dust reduction effect, the overall dust reduction effect of the device is improved.

[0040] The output end of the water distribution valve 134 is fixedly connected to the water distribution pipe 137, which is fixedly connected to the input end of the booster pump 131. The input end of the water distribution valve 134 is fixedly connected to the water inlet 135, and the side of the water inlet 135 is fixedly connected to the water delivery pipe 136.

[0041] The fixing plate 11 is set in an arc shape, and the baffle 22, coarse filter 23 and electrostatic dust collection screen 28 are all set in an arc shape corresponding to the fixing plate 11.

[0042] During operation, water can be supplied to the water distribution valve 134 via the water supply pipe 136. The water distribution valve 134 then delivers the water to the booster pump 131 via the water distribution pipe 137 for pressurization. The water is then sprayed onto the aggregate surface through the atomizing nozzle 133 inside the arc-shaped pipe 132. Alternatively, the water supply pipe 136 can be connected to the input end of another water inlet 135, allowing multiple devices to be connected together. At this time, due to the operation of the screening machine, the accumulated aggregate will be vibrated and scattered, and dust that cannot be sprayed inside will fall out. The motor 272 drives the fan blade 273 to rotate, enabling the device to generate suction. This suction is then released through the top of the fixed outer casing 271. The opening discharges gas, and the heating tube 274 generates heat. Under the action of the gas flow of the fan blade 273, the heat of the heating tube 274 can be transferred to the interior of the fixing mechanism 1, heating the interior of the fixing mechanism 1 to a certain degree of heat. Since hot water has a better dust reduction effect, it improves the overall dust reduction effect of the device, allowing floating dust to be filtered through the coarse filter screen 23. The electrostatic dust collection screen 28 inside the outer shell 25 can adsorb even finer dust, ensuring the relative cleanliness of the gas output from the power unit 27. When enough dust is adsorbed on the surface of the electrostatic dust collection screen 28, it can be removed for cleaning by opening the sealing baffle 26.

[0043] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dust reduction mechanism for a concrete aggregate screening machine, characterised in that: The dust falling mechanism comprises a fixed plate (11) mounted on the screening machine through bolts (24), and a dust suction mechanism (2) for dust suppression is arranged inside the fixed plate (11); The dust suction mechanism (2) comprises a baffle (22) rotatably mounted on the screening machine through a hinge (21), an outer shell (25) fixedly connected to the baffle (22), a coarse filter screen (23) fixedly connected to the outer shell (25), and a sealing baffle (26) clamped to the outer shell (25), wherein the sealing baffle (26) is arranged above the coarse filter screen (23). A fixing mechanism (1) for limiting the outer shell (25) is arranged on the fixed plate (11).

2. A dust reduction mechanism for a concrete aggregate screening machine according to claim 1, characterised in that: The fixing mechanism (1) comprises fixing holes (12) opened in the top surface of the fixed plate (11), and a water spraying device (13) is fixedly connected to the top surface of the fixed plate (11); the number of the fixed plates (11) is two, and a locking plate (14) is fixedly connected to the top surface of the other fixed plate (11); the fixed plate (11) and the locking plate (14) are movably connected through bolts (24).

3. A dust reduction mechanism for a concrete aggregate screening machine as claimed in claim 1, wherein: The dust suction mechanism (2) further comprises an electrostatic dust collecting screen (28) movably connected to the outer shell (25), and a power device (27) is fixedly connected to the middle of the top surface of the baffle (22). The power device (27) comprises a fixed shell (271) fixedly connected to the middle of the top surface of the baffle (22) and fixedly connected to one side of the outer shell (25), and a motor (272) is fixedly connected to the inner bottom surface of the fixed shell (271).

4. A dust reduction mechanism for a concrete aggregate screening machine according to claim 3, wherein: The output end of the motor (272) is fixedly connected with a fan blade (273), the inner top surface of the fixed shell (271) is fixedly connected with a heating pipe (274), the side surface of the fixed shell (271) is fixedly connected with an electrostatic generator (275), and the electrostatic generator (275) is electrically connected with the electrostatic dust collecting screen (28).

5. A dust reduction mechanism for a concrete aggregate screening machine according to claim 2, wherein: The water spraying device (13) comprises a pressure pump (131) fixedly connected to one end of the top surface of the fixed plate (11), an arc-shaped pipe (132) fixedly connected to the output end of the pressure pump (131), a mist spraying head (133) fixedly connected to the inner top surface of the arc-shaped pipe (132), a water distribution valve (134) fixedly connected to the top surface of the arc-shaped pipe (132), and a water distribution valve (134) fixedly connected to the output end of the water distribution valve (134).

6. A dust reduction mechanism for a concrete aggregate screening machine according to claim 5, wherein: The output end of the water distribution valve (134) is fixedly connected with a water distribution pipe (137), the water distribution pipe (137) is fixedly connected to the input end of the pressure pump (131), the input end of the water distribution valve (134) is fixedly connected with a water inlet (135), and the side surface of the water inlet (135) is fixedly connected with a water delivery pipe (136).

7. A dust reduction mechanism for a concrete aggregate screening machine according to claim 3, wherein: The fixed plate (11) is arranged in an arc shape, and the baffle (22), the coarse filter screen (23), and the electrostatic dust collecting screen (28) are all arranged in an arc shape corresponding to the fixed plate (11).

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