Dust collection device for construction site

Abstract

The invention belongs to the technical field of construction site dust collection devices, and particularly relates to a construction site dust collection device which comprises a shell, an air inlet, a primary filtering assembly, a power device and a secondary filtering assembly, the air inlet is formed in the shell, the primary filtering assembly is arranged on the side, close to the air inlet, of the interior of the shell, and the primary filtering assembly comprises a filtering box and a filtering net; the filter screen is arranged in the filter box; the filter box is connected with the input end of the power device through a first pipeline, the secondary filter assembly is connected with the output end of the power device through a second pipeline, the secondary filter assembly is a dust filter box, the dust filter box is connected into the shell, and the second pipeline extends into the dust filter box to the position close to the bottom of the dust filter box. A guide pipe is arranged at a position close to the top of the dust filtering box, and a blow-off pipe is arranged at a position close to the bottom of the dust filtering box; compared with the prior art, the dust collection device for the construction site can be adjusted and rotated according to use requirements, dust in the device is easy to clean, and the use value of the dust collection device for the construction site is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction site dust suction devices, and in particular to a dust suction device for construction sites. Background Art

[0002] Dust control at construction sites mainly focuses on dust removal on the outside of the building, while the dust collection device is rarely used during construction of the main structure. Dust generated by cutting various building materials is discharged into the air at will, and it is urgent to use a dust collection device to extract the dust. However, due to the complex structure of the commonly used dust collection device, the dust collection port cannot be adjusted and rotated according to the needs of use, and the dust inside the device is not easy to clean, the dust removal effect of the dust collection device on the construction site is deviated, reducing its use value. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention develops a dust suction device for construction sites, which can be adjusted and rotated according to use needs, and dust inside the device is easy to clean, thereby improving the use value of the dust suction device for construction sites.

[0004] The technical solution to the technical problem solved by the present invention is: a dust suction device for construction sites, comprising a shell, an air inlet, a primary filter assembly, a power device and a second filter assembly, the air inlet being arranged on the shell, the primary filter assembly being arranged on a side of the shell close to the air inlet, the primary filter assembly comprising a filter box and a filter screen, the filter screen being arranged in the filter box; the filter box is connected to the input end of the power device through a first pipe, the second filter assembly is connected to the output end of the power device through a second pipe, the second filter assembly is a dust filter box, the dust filter box is connected inside the shell, the second pipe extends into the dust filter box to a position close to the bottom of the dust filter box, a duct is arranged close to the top of the dust filter box, and a sewage pipe is arranged close to the bottom.

[0005] Preferably, a movable shutter is provided at the air inlet, and the movable shutter is detachably connected to the shell.

[0006] Preferably, a vertical plate is detachably connected to a position of the shell near the bottom.

[0007] Preferably, the primary filter assembly further comprises a fixed plate and a pull ring, the filter screen is connected to the fixed plate and arranged in an array on the fixed plate, a pull ring is arranged on the side of the fixed plate away from the filter screen, and the filter screen is slidably connected in the filter box.

[0008] Preferably, the power device is a blower, and the blower is installed inside the casing.

[0009] Preferably, an agitator is rotatably connected in the dust filter box, a motor is connected to the top of the dust filter box, and the agitator is connected to the output end of the motor.

[0010] Preferably, a solenoid valve is provided on the sewage pipe.

[0011] Preferably, a movable trolley is connected to the bottom of the shell.

[0012] Preferably, the surface array of the portion of the second pipe extending into the dust filter box is provided with air outlet holes.

[0013] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects: 1. The present invention can be easily moved to perform dust removal operations at various locations on the construction site; 2. By setting up movable shutters, large foreign objects can be blocked to prevent them from entering the device and causing blower failure; 3. By setting a detachable vertical plate, it is easy to clean the inside of the filter box; 4. The filter screen can be pulled out to facilitate replacement and cleaning; 5. By setting up a dust filter box filled with water, the air discharged from the second pipe with fine dust after the initial filtration can be intercepted, thereby improving the filtration effect; 6. By setting up a stirrer, the mixing of dust-containing air and water can be accelerated; 7. By arranging air outlet holes in the partial array of the second pipeline located in the dust filter box, the principle of the aerator can be simulated, the contact area between air and water can be increased, and dust can be better intercepted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the present invention; Figure 2 It is a structural schematic diagram of the filter box of the present invention; Figure 3 It is a schematic structural diagram of the dust filter box of the present invention.

[0015] Among them: 1. Shell; 101. Mobile trolley; 2. Air inlet; 21. Movable shutter; 22. Vertical plate; 3. Filter box; 4. Filter screen; 5. Fixed plate; 51. Pull ring; 6. First pipeline; 7. Blower; 8. Second pipeline; 81. Air outlet; 9. Dust filter box; 91. Conduit; 92. Drain pipe; 921. Solenoid valve; 10. Agitator; 11. Motor. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Example 1 See also Figures 1 to 3A dust suction device for a construction site comprises a shell 1, an air inlet 2, a primary filter assembly, a power device and a second filter assembly, wherein the air inlet 2 is arranged on the shell 1, the primary filter assembly is arranged on a side of the shell 1 close to the air inlet 2, the primary filter assembly comprises a filter box 3 and a filter screen 4, and the filter screen 4 is arranged in the filter box 3; the filter box 3 is connected to the input end of the power device through a first pipe 6, and the second filter assembly is connected to the output end of the power device through a second pipe 8, the second filter assembly is a dust filter box 9, the dust filter box 9 is connected to the inside of the shell 1, the second pipe 8 extends into the dust filter box 9 to a position close to the bottom of the dust filter box 9, a conduit 91 is arranged near the top of the dust filter box 9, the conduit 91 acts as a water inlet pipe when the dust filter box 9 needs to be filled with water, and acts as an exhaust pipe when exhaust is needed during the use of the device, and a sewage pipe 92 is arranged near the bottom.

[0018] The air inlet 2 is provided with a movable shutter 21 , and the movable shutter 21 is detachably connected to the housing 1 .

[0019] A vertical plate 22 is detachably connected to the housing 1 near the bottom.

[0020] The primary filter assembly also includes a fixed plate 5 and a pull ring 51. The filter screen 4 is connected to the fixed plate 5 and arranged in an array on the fixed plate 5. A pull ring 51 is provided on the side of the fixed plate 5 away from the filter screen 4. The filter screen 4 is slidably connected in the filter box 3.

[0021] The power device is a blower 7 , and the blower 7 is installed inside the housing 1 .

[0022] The dust filter box 9 is rotatably connected with an agitator 10 . The top of the dust filter box 9 is connected with a motor 11 . The agitator 10 is connected to the output end of the motor 11 .

[0023] The sewage pipe 92 is provided with a solenoid valve 921 .

[0024] A moving trolley 101 is connected to the bottom of the housing 1 .

[0025] The surface of the portion of the second pipe 8 extending into the dust filter box 9 is provided with an array of air outlet holes 81 .

[0026] Principle and operation process The dust removal device of the present invention is equipped with a mobile trolley 101 at the bottom, which is convenient for moving in the complex terrain of the construction site, and can effectively remove dust at various places on the construction site. By moving to the vicinity of different dust sources, the dust removal operation can be started to ensure the air quality of the construction site; the detachable movable shutters 21 at the air inlet 2 can block large-volume foreign objects such as wood blocks and large pieces of plastic when the dust-laden airflow rushes to the air inlet 2, preventing foreign objects from entering the device and interfering with the normal operation of the blower 7, such as causing damage to the impeller, blockage of the air duct, etc., thereby ensuring the stable operation of the entire dust collection device; the primary filter component is located in the shell At a position near the air inlet 2 in the body 1, after the dust-laden air flows into the filter box 3, the filter screen 4 performs preliminary filtration on the dust-laden air. The filter screen 4 is closely connected to the fixed plate 5 and is arranged in an array. This layout increases the effective filtration area. When the air passes through the filter screen 4, larger particles of dust can be intercepted by the filter screen 4, thereby achieving the initial purification of the air; the air that has been preliminarily filtered enters the input end of the blower 7 under the guidance of the first pipe 6, and the blower 7 pushes the air from the output end of the blower 7 through the second pipe 8 under pressure to the second filter assembly; the dust filter box 9 of the second filter assembly is filled with The air discharged from the second pipe 8 has water, and after the initial filtration, there are still fine dust particles left. When the air enters the dust filter box 9, the second pipe 8 goes deep into the position close to the bottom of the dust filter box 9, and the air rises in the water in the form of bubbles. In this process, the dust contacts the water, and the water intercepts the dust. The agitator 10 in the dust filter box 9 rotates at a high speed under the drive of the motor 11. The rotating action accelerates the mixing of the dust-containing air and the water, so that the dust particles are more dispersed under the water, which increases the chance of dust contacting with water and improves the interception effect. At the same time, the second pipe 8 The part in the dust filter box 9 is provided with air outlet holes 81 in an array on its surface. These air outlet holes 81 simulate the principle of an aerator to disperse the air entering the dust filter box 9 into countless tiny bubbles. Each bubble is an independent filtering unit, which further increases the contact area between air and water, makes the collision and adsorption between dust and water more complete, thereby more effectively intercepting dust and achieving a significant improvement in the secondary filtration effect; during the filtration process, the drain pipe 92 at the bottom of the dust filter box 9 mixes with dust and water, and some heavier dust particles gradually settle to the bottom of the dust filter box 9 under the action of gravity. The solenoid valve 921 provided on the sewage pipe 92 can control the timing and flow of sewage discharge according to a preset program or manual instruction. When sewage discharge is required, the solenoid valve 921 is opened, and the sewage and precipitated dust are discharged smoothly under the action of gravity, thereby maintaining the cleanliness of the water in the dust filter box 9 and ensuring the continuity of the filtering effect; the removable vertical plate 22 at the bottom of the shell 1 is a convenient entrance for maintaining the filter box 3. When the inside of the filter box 3 needs to be cleaned, only the vertical plate 22 needs to be removed, and the operator can thoroughly clean the stubborn dust and foreign matter that may remain in the filter box 3, thereby ensuring the cleanliness of the internal environment of the filter box 3 and maintaining good filtering performance.The removable design of the filter screen 4 allows the operator to easily pull out the filter screen 4 through the pull ring 51 connected to the fixing plate 5. In the event that the filter screen 4 is clogged or damaged due to long-term use, this design enables the filter screen 4 to be quickly replaced or efficiently cleaned.

[0027] When in use, the operator first fills the dust filter box 9 with water through the conduit 91, and then moves the dust suction device to the designated location where dust removal is required in the construction site through the mobile trolley 101. According to the distribution of dust sources and the actual situation on site, a suitable parking location is selected to ensure that the device can cover the largest range of dust generation areas; the blower 7 is started, and as the motor 11 runs, the impeller starts to rotate at high speed, generating a strong suction force. Under the action of this suction force, the dust-laden air flows to the air inlet 2, and at the air inlet 2, large-volume foreign matter is removed by the movable shutter 21. Effectively blocked, only dust-laden airflow can pass through the louver and enter the filter box 3 of the primary filter assembly; the air entering the filter box 3 quickly passes through the filter screen 4, and larger dust particles are accurately intercepted by the filter screen 4. The air after the initial filtration becomes relatively clean, and then smoothly enters the input end of the blower 7 through the first pipe 6. Under the push of the blower 7, the air enters the dust filter box 9 from the output end through the second pipe 8; in the dust filter box 9, the air is dispersed into countless tiny bubbles and discharged from the air outlet 81 of the second pipe 8. These bubbles are fully mixed with water during the process of rising in the water. At the same time, the agitator 10 continues to rotate at a high speed driven by the motor 11, further accelerating the mixing of air and water. Under this dual effect, the fine dust remaining in the air is fully adsorbed by the water, achieving secondary filtration. The clean air after secondary filtration is discharged from the duct 91 at the top of the dust filter box 9 and returns to the construction site environment, effectively reducing the dust content in the air.

[0028] During the dust removal process, the filter 4 is maintained in a timely manner according to the degree of blockage of the filter 4 and the changes in the filtering effect; according to the accumulation of sewage and dust in the dust filter box 9, the solenoid valve 921 on the sewage pipe 92 is opened regularly to discharge sewage; when it is necessary to deeply clean the inside of the filter box 3, the dust suction device is first turned off to ensure safety, and then the vertical plate 22 at the bottom of the shell 1 is removed to thoroughly clean the inside of the filter box 3.

[0029] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A dust suction device for a construction site, characterized in that: The invention comprises a housing (1), an air inlet (2), a primary filter assembly, a power device and a secondary filter assembly, wherein the air inlet (2) is arranged on the housing (1), the primary filter assembly is arranged on a side of the housing (1) close to the air inlet (2), the primary filter assembly comprises a filter box (3) and a filter screen (4), and the filter screen (4) is arranged in the filter box (3); the filter box (3) is connected to the input end of the power device via a first pipe (6), the secondary filter assembly is connected to the output end of the power device via a second pipe (8), the secondary filter assembly is a dust filter box (9), the dust filter box (9) is connected to the inside of the housing (1), the second pipe (8) extends into the dust filter box (9) to a position close to the bottom of the dust filter box (9), a guide tube (91) is arranged near the top of the dust filter box (9), and a sewage discharge pipe (92) is arranged near the bottom.

2. A dust suction device for construction sites according to claim 1, characterized in that: A movable shutter (21) is provided at the air inlet (2), and the movable shutter (21) is detachably connected to the housing (1).

3. A dust suction device for construction sites according to claim 1, characterized in that: A vertical plate (22) is detachably connected to a position near the bottom of the housing (1).

4. A dust suction device for construction sites according to claim 1, characterized in that: The primary filter assembly further comprises a fixing plate (5) and a pull ring (51); the filter screen (4) is connected to the fixing plate (5) and arranged in an array on the fixing plate (5); a pull ring (51) is arranged on a side of the fixing plate (5) away from the filter screen (4); and the filter screen (4) is slidably connected in the filter box (3).

5. A dust suction device for use at a construction site according to claim 1, characterized in that: The power device is a blower (7), and the blower (7) is installed inside the housing (1).

6. A dust suction device for use at a construction site according to claim 1, characterized in that: A stirrer (10) is rotatably connected in the dust filter box (9), a motor (11) is connected to the top of the dust filter box (9), and the stirrer (10) is connected to the output end of the motor (11).

7. A dust suction device for use at a construction site according to claim 1, characterized in that: The sewage discharge pipe (92) is provided with a solenoid valve (921).

8. A dust suction device for use at a construction site according to claim 1, characterized in that: The bottom of the housing (1) is connected to a moving trolley (101).

9. A dust suction device for use at a construction site according to claim 1, characterized in that: An array of air outlet holes (81) are provided on the surface of the portion of the second pipe (8) extending into the dust filter box (9).

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