A green building construction dust treatment device

Abstract

The present application relates to air dust falling equipment field, especially to a kind of green building construction dust falling treatment device, including fixedly installed on mobile seat shell, the shell top rotation is connected with air inlet pipe, the shell is equipped with the driving member of driving air inlet pipe rotation;It also includes fan fixedly installed on the upper portion of shell inner wall, the air outlet of air inlet pipe leads to fan, the fan bottom fixedly connected with filter box, the fan blows towards filter box, the filter box outer wall is uniformly spaced and equipped with multiple filter screens.The present application carries out double filtration to air by filter screen and water washing box, cooperates with the linkage system of shielding mechanism and dust removal mechanism, in the case where the normal work of filter passage of filter box is not affected, clean air after washing is used to blow back and clean the filter screen isolated, effectively solve the problem of overall efficiency decline caused by filter screen blockage in traditional equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air dust falling equipment, and in particular to a green and environmentally friendly dust falling treatment device for building construction. BACKGROUND

[0002] During the construction process, especially in indoor decoration, demolition or concrete cutting operations, a large amount of dust particles will be generated. These dusts not only pollute the construction site environment, but also are easily inhaled by workers, which may cause respiratory diseases and seriously endanger human health. In order to effectively control the spread of dust and protect the air quality of the construction environment, various dust falling equipment is widely used in construction sites. Among them, the air dust falling device can achieve efficient removal of dust by sucking dust-containing air and carrying out filtration, water washing and other purification treatments.

[0003] After searching, the invention with the authorization announcement number CN119374181B discloses a green and environmentally friendly dust falling device for building construction, which comprises an air dust falling device. The air dust falling device comprises a top bin, a gas inlet is formed on one side of the top of the top bin, a suction fan is installed inside the top bin, a connecting cylinder is fixedly connected to the bottom of the top bin, a filter bin is fixedly connected to the bottom of the connecting cylinder, a guide bin is installed in the upper part of the filter bin, and a filter screen is arranged in the upper part of the guide bin. The above device directly washes the filtered air with water to filter and purify the air in the indoor construction site.

[0004] However, the above-mentioned dust falling and air purification method still has some deficiencies in actual application. Specifically, in the operation process, a filter cartridge or a filter screen is used as the core filter unit to remove dust by physical interception. However, fine particles are easily embedded in the pores of the filter material, which causes the filter screen to be quickly clogged, the wind resistance of the system to increase, the air volume to decrease, and the dust falling efficiency to be affected. At the same time, in the water washing dust removal link, since the air passes through the water layer in the form of bubbles for a single time, the contact time is short and the contact area is small, which leads to insufficient wetting and settling of fine dust and low water washing efficiency. Finally, the dust removal and purification effect is not good. SUMMARY

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the present application provides a green and environmentally friendly dust falling treatment device for building construction.

[0006] The technical implementation of the present application is: a green and environmentally friendly dust falling treatment device for building construction, comprising a shell fixedly installed on a moving seat, wherein the moving seat is a support and movement carrier of the device, a rotating communication air inlet pipe is arranged on the top of the shell, and a driving member for driving the rotation of the air inlet pipe is arranged on the shell; further comprising a fan fixedly installed on the upper part of the inner wall of the shell, wherein the air outlet of the air inlet pipe is connected to the fan, a filter box is fixedly connected to the bottom of the fan, the bottom of the filter box is a tapered opening, the fan blows air towards the filter box, a plurality of filter screens are uniformly and spacedly arranged on the outer wall of the filter box, the filter screens are used for filtering dust and impurities in the dust falling air, a ventilation frame is arranged on the outer sealing sleeve of the filter box, a ventilation chamber is formed between the filter box and the ventilation frame, a plurality of partition plates are fixedly connected in a radial star shape inside the filter box, the filter box is evenly divided into a plurality of filter channels by the partition plates, the filter screens of the filter box correspond to one filter channel respectively, a water washing box is fixedly installed on the bottom of the inner wall of the shell, the water washing box is connected to the ventilation frame through an air pipe, a plurality of nozzles are arranged on the pipe section in the water washing box, an air outlet frame is connected to the top of the water washing box, a plurality of air outlets are arranged on the air outlet frame in a circumferential direction; a shielding mechanism is arranged in each filter channel of the filter box, the shielding mechanism comprises an upper baffle and a lower baffle which are respectively hingedly connected to the upper part and the lower part of the filter channel of the filter box, the upper baffle and the lower baffle can block the filter channel in cooperation with the partition plates, a spring is arranged between the filter box and the lower baffle, electromagnets which are electromagnetically attracted to each other are installed on the opposite surfaces of the bottom of the inner wall of the filter box and the lower baffle, and the upper baffle and the lower baffle are connected through a connecting rod; a dust removal mechanism is arranged in the ventilation chamber between the filter box and the ventilation frame in a circumferential direction, and the dust removal mechanism is used for cleaning the filter screens of the filter box.

[0007] Preferably, the driving member comprises a tooth ring, a motor one and a gear one, the tooth ring is fixedly connected to the outer wall of the rotating shaft of the air inlet pipe, the motor one is fixedly installed on the top of the shell, the gear one is fixedly installed on the output shaft of the motor one, and the gear one and the tooth ring are engaged with each other.

[0008] As preferred, the dust removing mechanism comprises air pumps fixedly installed on the air outlet frame, the number of the air pumps is consistent with the number of the filter screens on the filter box, the inlets of the air pumps are communicated to the top of the water washing box, the water level in the water washing box is lower than the air pumps, the outer wall of the filter box is fixedly connected with a plurality of groups of support plates in a circumferential direction, each group of the support plates is provided with two support plates fixedly arranged on the outer wall of the filter box, and each group of the support plates corresponds to a filter screen of the filter box, a plurality of air jet pipes are fixedly installed on the inner side of each group of the support plates in a spaced manner, the air jet pipes are provided with nozzles and face the corresponding filter screens on the same side, the air jet pipes are sealingly and rotatably installed with blade plates through pipe bodies, the blade plates are provided with air outlets at the positions connected with the air jet pipes, the air outlets of the blade plates are initially staggered with the nozzles of the air jet pipes, the blade plates can rotate to block the corresponding filter screens on the filter box, a plurality of the blade plates on the same side are connected with each other through connecting plates, the outlets of the air pumps are communicated to each air jet pipe on the same side through air suction pipes, the rotating shafts of the upper baffles are fixedly connected with gear two, the rotating shafts of one blade plate in the inner top of each group of the support plates are fixedly connected with gear three, and the gear two and the gear three are engaged.

[0009] As preferred, the air inlet of the air inlet pipe is provided with a telescopic cover, the telescopic cover can be telescoped, the inner wall of the telescopic cover is provided with an air suction mechanism, the air suction mechanism is used for improving the air inlet efficiency of the telescopic cover, the air suction mechanism comprises an annular pipe fixedly installed at the air inlet of the air inlet pipe, the annular pipe is communicated to the position between the fan and the filter box through a pipeline, a plurality of branch pipes are communicated in a circumferential direction on the annular pipe, a sleeve pipe is sealingly and slidably arranged on each branch pipe, a connector is installed at the end of the sleeve pipe away from the branch pipe, the connector is fixedly connected with the inner wall of the telescopic cover, telescopic pipes are sealingly communicated between adjacent sleeve pipes through connectors, and the telescopic pipes are provided with openings on the pipe wall of the telescopic cover.

[0010] As preferred, the branch pipes are fixedly connected with fixing frames, the fixing frames are installed with electric lead screws, and the electric lead screws are threadedly connected with the corresponding sleeve pipes.

[0011] As preferred, the lower part of the machine shell is provided with an aeration mechanism for aeration treatment of air in the water washing tank, the aeration mechanism comprising a plurality of isolation plates fixedly arranged in the water washing tank, the isolation plates separating the water washing tank into independent chambers, the air pipes being respectively communicated into one independent chamber of the water washing tank, the bottom of the inner independent chamber of the water washing tank being provided with an aeration pipe, each independent chamber of the water washing tank being communicated with an air outlet valve higher than the water level, one end of the aeration pipe being communicated with an air inlet valve, the air outlet valve and the air inlet valve being one-way valves, wherein the air outlet valve is outwardly communicated by one-way, and the air inlet valve is inwardly communicated by one-way, a plurality of piston cylinders are fixedly arranged on the outer wall of the water washing tank, two ports of the piston cylinders are respectively communicated with adjacent air outlet valves and air inlet valves through pipelines, the piston rods of adjacent piston cylinders are eccentrically connected through a connecting block, and a second motor is fixedly arranged on the outer wall of the water washing tank, and the output shaft of the second motor is connected with the rotating shaft of one connecting block.

[0012] As preferred, an ultrasonic generator is further arranged in the water washing tank, and the ultrasonic generator penetrates the isolation plates in the water washing tank.

[0013] As preferred, a dust discharge pipe is communicated with the bottom of the filter box, the dust discharge pipe penetrates the bottom of the machine shell, a cavity is arranged in the lower part of the machine shell, a guide frame is fixedly connected in the cavity of the machine shell, and a dust collection box is slidingly arranged on the guide frame.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The present application filters air through the filter screen and the water washing tank, and cooperates with the linkage system of the shielding mechanism and the dust removal mechanism, so that the clean air after water washing is used for back blowing and cleaning of the isolated filter screen without affecting the normal work of the filter channel of the filter box, thereby effectively solving the problem of overall efficiency reduction caused by filter screen blockage in traditional equipment.

[0016] 2. The present application is provided with a telescopic cover which is driven and adjusted in extension and retraction by an electric screw rod, so that the size and shape of the dust suction port can be dynamically adjusted according to the site space and dust source position, the complex and changeable construction environment is adapted, and the dust suction and air intake efficiency is significantly improved by cooperating with the active drainage design in the telescopic cover.

[0017] 3. The plurality of isolation plates arranged in the water washing tank of the present application separate the water washing tank into independent chambers, and cooperate with the aeration mechanism driven by the piston cylinder, so that the air forms an S-shaped zigzag flow path in the tank, the residence time of the gas in the water is prolonged, and the stripping and cleaning effect of water molecules on dust is further strengthened by the cavitation effect generated by the ultrasonic generator. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0019] Figure 2 The cross-sectional view of the machine shell, filter box and water washing box of the present application.

[0020] Figure 3 The schematic view of the connection relationship of the water washing box, air pipe, spray head and air outlet frame of the present application.

[0021] Figure 4 The schematic view of the filter box, partition plate, support plate and lamella of the present application.

[0022] Figure 5 The connection relationship diagram of the upper baffle, lower baffle, spring, electromagnet and connecting rod of the present application.

[0023] Figure 6 The matching relationship diagram of the lamella, connecting plate, upper baffle, air suction pipe and air injection pipe of the present application.

[0024] Figure 7 The schematic view of the air inlet pipe, telescopic cover and air suction mechanism of the present application.

[0025] Figure 8 The exploded view of the air suction mechanism of the present application.

[0026] Figure 9 The connection relationship diagram of the air suction mechanism of the present application.

[0027] Figure 10 The connection relationship diagram of the water washing box, air injection pipe, air outlet valve and air inlet valve of the present application.

[0028] Figure 11 The schematic view of the isolation plate and ultrasonic generator of the present application.

[0029] Figure 12 The connection relationship diagram of the machine shell, filter box, dust exhaust pipe and dust collection box of the present application.

[0030] Explanation of reference signs: 1, moving seat, 2, casing, 3, air inlet pipe, 31, telescopic cover, 4, driving member, 41, tooth ring, 42, motor one, 43, gear one, 5, fan, 6, filter box, 61, filter screen, 62, ventilation frame, 63, partition plate, 7, water washing box, 71, air pipe, 72, spray head, 73, air outlet frame, 8, shielding mechanism, 81, upper baffle, 82, lower baffle, 821, spring, 83, electromagnet, 84, connecting rod, 9, dust removal mechanism, 91, support plate, 92, leaf plate, 93, connecting plate, 94, gear two, 95, gear three, 10, air pump, 101, air suction pipe, 102, air injection pipe, 11, dust discharge pipe, 12, air suction mechanism, 121, annular pipe, 122, branch pipe, 1221, fixing frame, 1222, electric screw rod, 123, sleeve pipe, 124, joint, 125, telescopic pipe, 13, aeration mechanism, 131, isolation plate, 132, aeration pipe, 133, air outlet valve, 134, air inlet valve, 135, piston cylinder, 136, connecting block, 137, motor two, 14, ultrasonic generator, 15, dust collection box, 151, guide frame. DETAILED DESCRIPTION

[0031] The application will be further described below in conjunction with the drawings and specific embodiments. Although the application can be described with respect to a particular application or industry, those skilled in the art will recognize a broader applicability of the application. Those of ordinary skill in the art will recognize terms such as: above, below, upward, downward, etc. are used to describe the drawings and are not meant to limit the scope of the application as defined by the appended claims.

[0032] A green and environment-friendly dust reduction device for building construction, comprising a casing, a moving seat, a water washing box, a filter box, a fan, a dust removal mechanism, a shielding mechanism, an air pump, an air suction mechanism, an aeration mechanism, an ultrasonic generator and a dust collection box. Figures 1-6As shown, including fixedly installed on the mobile seat 1 on the shell 2, mobile seat 1 is the support and movement of the device carrier, shell 2 top rotating communication with the intake pipe 3, shell 2 is provided with driving member 4 driving intake pipe 3 rotation; Also includes fixedly installed on the inner wall of the shell 2 upper fan 5, intake pipe 3 outlet to the fan 5, fan 5 bottom fixedly connected with the filter box 6, filter box 6 bottom is tapered opening, fan 5 towards filter box 6 blowing, filter box 6 outer wall evenly spaced around the assembly of a plurality of filter screen 61, filter screen 61 for filtering dust in the air dust and impurities, filter box 6 outer sealing sleeve is provided with a layer of ventilation frame 62, filter box 6 and ventilation frame 62 between the formation of ventilation chamber, filter box 6 inside the radial star-shaped fixedly connected with a plurality of partitions 63, 63 will filter box 6 evenly divided into a plurality of filter channels, filter box 6 filter screen 61 respectively corresponding a filter channel, shell 2 inner wall bottom fixedly installed with water washing tank 7, water washing tank 7 through the ventilation pipe 71 to the ventilation frame 62, ventilation pipe 71 in the water washing tank 7 in the pipe section is provided with a plurality of nozzles 72, water washing tank 7 top communication with the outlet frame 73, outlet frame 73 circumferentially provided with a plurality of gas outlets; Each filter channel of filter box 6 is provided with a shielding mechanism 8, shielding mechanism 8 includes respectively hinged to the upper and lower portions of the filter channel of filter box 6 upper baffle 81 and lower baffle 82, upper baffle 81 and lower baffle 82 can cooperate with the partition 63 to block the filter channel, filter box 6 and lower baffle 82 between the spring 821, filter box 6 inner wall bottom and the opposite surface of the lower baffle 82 are installed with electromagnetically attracted electromagnet 83, corresponding upper baffle 81 and lower baffle 82 through connecting rod 84 connected; The ventilation chamber between the filter box 6 and the ventilation frame 62 is circumferentially provided with a dust removal mechanism 9, the dust removal mechanism 9 is used for cleaning the filter screen 61 of the filter box 6; The air to be dusted is introduced by the intake pipe 3, enters the filter box 6 under the action of the fan 5, and is primarily filtered by the filter screen 61 in each filter channel. The air after primary filtration passes through the ventilation chamber between the filter box 6 and the ventilation frame 62 and the ventilation pipe 71 into the water washing tank 7, so that the air after primary filtration is washed and filtered again in the water washing tank 7, and finally the purified air after washing and filtering is safely discharged from the outlet frame 73. When the filter screen 61 is gradually blocked during the filtering process, the electromagnet 83 in the filter channel corresponding to the filter box 6 is electrified to generate attractive magnetism, the lower baffle 82 can be rotated and adsorbed on the inner wall bottom of the filter box 6, and the upper baffle 81 is pulled to rotate and block and close the corresponding filter channel in the filter box 6 through the connecting rod 84. Subsequently, the dust removal mechanism 9 is enabled to clean the filter screen 61 of the filter box 6, so that the filter screen 61 is clean and does not affect the filtering function of the filter box 6.

[0033] As Figure 2 And Figure 7As shown, the driving member 4 comprises a tooth ring 41, a motor one 42 and a gear one 43, the tooth ring 41 is fixedly connected to the rotating shaft of the air inlet pipe 3, the motor one 42 is fixedly installed on the top of the shell 2, the gear one 43 is fixedly installed on the output shaft of the motor one 42, the gear one 43 and the tooth ring 41 are engaged with each other, the motor one 42 drives the air inlet pipe 3 to rotate by the gear one 43 engaging the tooth ring 41, so that the air inlet pipe 3 can flexibly adjust the direction of the dust suction air.

[0034] As shown in the figure, Figures 3-6 As shown, the dust removal mechanism 9 comprises a gas pump 10 fixedly installed on the air outlet frame 73, the number of the gas pump 10 is consistent with the filter screen 61 on the filter box 6, the inlet of the gas pump 10 is communicated to the top of the water washing box 7, the water level in the water washing box 7 is lower than the gas pump 10, a plurality of groups of supporting plates 91 are fixedly connected to the outer wall of the filter box 6 in a circumferential direction, each group of supporting plates 91 is provided with two supporting plates fixedly arranged on the outer wall of the filter box 6, and each group of supporting plates 91 corresponds to the filter screen 61 of the filter box 6 respectively, a plurality of air jet pipes 102 are fixedly installed on the inner side of each group of supporting plates 91 in a spaced manner, the air jet pipe 102 is provided with a jet opening and faces the corresponding filter screen 61 on the same side, a vane plate 92 is sealingly and rotatably installed on the outer side of the air jet pipe 102 by a pipe body, the vane plate 92 is provided with an air outlet opening at the position connected to the air jet pipe 102, the air outlet opening of the vane plate 92 is initially misaligned with the jet opening of the air jet pipe 102, the vane plate 92 can rotate to block the corresponding filter screen 61 on the filter box 6, a plurality of vane plates 92 on the same side are connected to each other by a connecting plate 93, the outlet of the gas pump 10 is communicated to each air jet pipe 102 on the same side through a gas suction pipe 101, the rotating shaft of the upper baffle plate 81 is fixedly connected with a gear two 94, the rotating shaft of one vane plate 92 on the inner top of the same group of supporting plates 91 is fixedly connected with a gear three 95, the gear two 94 and the gear three 95 are engaged, when the filter screen 61 of the filter box 6 needs to be cleaned, the electromagnet 83 is electrified to attract each other, so that the lower baffle plate 82 rotates and pulls the upper baffle plate 81 to rotate downward through the connecting rod 84, so that the filter channel at the filter screen 61 to be cleaned is closed, the gear two 94 on the rotating shaft of the upper baffle plate 81 engages the gear three 95 to drive the vane plate 92 to rotate, then all vane plates 92 in the same group are synchronously driven to rotate and block the filter screen 61 of the filter box 6 under the action of the connecting plate 93, at this time, the air outlet opening of the vane plate 92 will be aligned with the jet opening of the air jet pipe 102, then the gas pump 10 is started, the gas pump 10 can pump the filtered gas in the water washing box 7 into each air jet pipe 102 through the gas suction pipe 101, so that the air jet pipe 102 sprays the purified gas to the corresponding filter screen 61 of the filter box 6, thereby realizing the dredging and cleaning of the blockage of the filter screen 61 in the closed filter channel, while not affecting the filtering of other filter channels without closed filter channels.

[0035] As shown in the figure, Figure 3 and Figure 12As shown, the bottom of the filter box 6 is communicated with a dust discharge pipe 11, the dust discharge pipe 11 penetrates through the bottom of the machine shell 2, the lower part of the machine shell 2 is provided with a chamber, the chamber of the machine shell 2 is fixedly connected with a guide frame 151, and the guide frame 151 is slidably installed with a dust collection box 15, the dust collection box 15 is used for collecting dust and impurities falling from the dust discharge pipe 11, so that subsequent concentrated environmental protection treatment can be carried out on the dust and impurities.

[0036] The dust falling treatment device can be moved to the construction site by moving seat 1 for use. According to the actual use condition of the device, motor one 42 drives gear one 43, gear one 43 engages with gear ring 41 and drives air inlet pipe 3 to rotate and adjust the use direction. When the device is running, fan 5 is started first. When fan 5 is running, negative pressure is generated at the inlet of air inlet pipe 3 and dust-containing air is sucked in. The dust-containing air is guided by air inlet pipe 3 to fan 5 and is blown into the filter box 6 after being pressurized. The dust-containing air is evenly divided into each filter channel by the plurality of partition plates 63. In this process, the air passes through the filter screen 61 arranged circumferentially in the filter box 6. The dust and larger particles are intercepted by the filter screen 61 to complete the preliminary filtration. The preliminarily purified air passes through the filter screen 61 and enters the ventilation chamber between the filter box 6 and the ventilation frame 62. Then the air is transported to the bottom of the water washing box 7 through the air pipe 71. The nozzles 72 on the air pipe 71 disperse the air into bubbles and spray it into the water, so that the air filtered by the filter screen 61 can be washed and filtered by water to dissolve or capture fine dust. Finally, the purified air after water washing and filtration is discharged upward by the air outlet frame 73. When the device has been running for a period of time, when the filter screen 61 in a certain filter channel is gradually blocked due to dust accumulation, the cleaning program of the device is started. First, the electromagnet 83 in the corresponding filter channel of the blocked filter screen 61 is powered on. The two electromagnets 83 generate attractive magnetism and overcome the force of spring 821 to attract and make the corresponding lower baffle 82 rotate downward and tightly close to the bottom of the filter box 6. The lower baffle 82 pulls the upper baffle 81 downward synchronously through the connecting rod 84. The upper baffle 81 covers the partition plate 63 to close the inlet of the filter channel and block the airflow. At the same time, the gear two 94 on the rotating shaft of the upper baffle 81 rotates. The gear two 94 engages with the gear three 95 on the rotating shaft of the leaf plate 92 of the driving branch plate 91 to drive all the leaf plates 92 connected by the connecting plate 93 to rotate synchronously. The leaf plate 92 rotates to block the corresponding filter screen 61 outside. At the same time, the air outlet in the leaf plate 92 is accurately aligned with the nozzle 102 on the branch plate 91. Then, the air pump 10 corresponding to the filter screen 61 is started. The air that has been washed and purified is extracted from the top of the water washing box 7, pumped into the air injection pipe 102 through the air suction pipe 101, and then high-pressure clean gas is sprayed from the air injection pipe 102. The clean gas penetrates the aligned air outlet of the leaf plate 92 and directly blows back the blocked filter screen 61 to blow off the dust on the surface of the filter screen 61 and shake off the dust to the bottom of the filter box 6. The dust finally falls into the dust collection box 15 through the dust removal pipe 11 for collection. This cleaning process is for a single filter channel. Other channels remain in the normal filtering state to realize online cleaning without stopping to ensure the continuity of the dust falling operation and the working efficiency of the device. After cleaning, the electromagnet 83 is powered off. Under the action of the spring 821, the lower baffle 82 and the upper baffle 81 are reset to reopen the filter channel and restore the filtering effect.

[0037] As Figure 1 , Figure 7 and Figure 8As shown, the air inlet of the air inlet pipe 3 is equipped with a telescopic cover 31, the telescopic cover 31 can be telescoped, the inner wall of the telescopic cover 31 is provided with an air extraction mechanism 12, the air extraction mechanism 12 is used to improve the air inlet efficiency of the telescopic cover 31, the air extraction mechanism 12 includes an annular pipe 121 fixedly installed at the air inlet of the air inlet pipe 3, the annular pipe 121 is communicated to between the fan 5 and the filter box 6 through a pipeline, a plurality of branch pipes 122 are communicated in the circumference of the annular pipe 121, the branch pipes 122 are all sealingly sleeved with sleeve pipes 123, the sleeve pipes 123 are all installed with joints 124 at the end away from the branch pipes 122, the joints 124 are fixedly connected with the inner wall of the telescopic cover 31, the telescopic pipes 125 are sealingly communicated between the adjacent sleeve pipes 123 through the joints 124, the telescopic pipes 125 are provided with openings on the pipe wall of the telescopic cover 31, when the fan 5 blows the airflow into the filter box 6, part of the airflow will flow into the annular pipe 121 through the pipeline, the airflow flows to the pipe and the telescopic pipe 125 after passing through the annular pipe 121 and the branch pipe 122, and finally blows to the telescopic cover 31 from the opening of the telescopic pipe 125, so that the airflow in the telescopic cover 31 is accelerated to generate negative pressure, thereby accelerating the external to-be-de dusted air to flow into the telescopic cover 31 and the air inlet pipe 3, and improving the efficiency of the device in purifying the to-be-de dusted air.

[0038] As shown in Figure 7 and Figure 8 , the branch pipe 122 is fixedly connected with a fixing frame 1221, the fixing frame 1221 is installed with an electric screw rod 1222, the electric screw rod 1222 is in threaded cooperation with the corresponding sleeve pipe 123, when the electric screw rod 1222 on the branch pipe 122 synchronously drives the sleeve pipe 123 to slide and elongate, the sleeve pipes 123 move outward and expand between the plurality of sleeve pipes 123, so that the telescopic pipe 125 between the sleeve pipes 123 is synchronously elongated, thereby realizing the elongation and expansion of the telescopic cover 31, and improving the use flexibility of the telescopic cover 31.

[0039] As shown in Figure 1 , Figure 9 , Figure 10 and Figure 11As shown, the lower part of the casing 2 is provided with an aeration mechanism 13 for aeration treatment of air in the water washing tank 7. The aeration mechanism 13 includes a plurality of partition plates 131 fixedly arranged in the water washing tank 7, which separates the water washing tank 7 into independent chambers. The air pipes 71 are respectively communicated to one independent chamber of the water washing tank 7. The bottom of the inner independent chamber of the water washing tank 7 is provided with an aeration pipe 132. Each independent chamber of the water washing tank 7 is communicated with an air outlet valve 133 higher than the water level. One end of the aeration pipe 132 is communicated with an air inlet valve 134. The air outlet valve 133 and the air inlet valve 134 are both one-way valves, wherein the air outlet valve 133 is outwardly communicated one-way from the water washing tank 7, and the air inlet valve 134 is inwardly communicated one-way to the aeration pipe 132. A plurality of piston cylinders 135 are fixedly arranged on the outer wall of the water washing tank 7. The two openings of the piston cylinder 135 are respectively communicated with the adjacent air outlet valve 133 and air inlet valve 134 through pipes. The piston rods of the adjacent piston cylinders 135 are eccentrically connected through a connecting block 136. A motor 137 is fixedly arranged on the outer wall of the water washing tank 7. The output shaft of the motor 137 is connected with the rotating shaft of one of the connecting blocks 136. The motor 137 drives the piston rods of all the piston cylinders 135 to reciprocate by driving the connecting block 136. After the air in the water washing tank 7 is preliminarily washed by the air pipes 71, the piston rods of the piston cylinders 135 are extended. At this time, the air is pumped into the piston cylinders 135 from the top of the independent chamber of the water washing tank 7 through the air inlet valve 134. With the retraction of the piston rods of the piston cylinders 135, the air is pumped into the air inlet valve 134 and the aeration pipe 132 from the piston cylinders 135. Finally, the air in the water washing tank 7 is S-shaped guided, so that the air can be washed multiple times to improve the washing effect of the air.

[0040] As shown in Figure 1 and Figure 11 The water washing tank 7 is also provided with an ultrasonic generator 14. The ultrasonic generator 14 penetrates the partition plates 131 in the water washing tank 7. The ultrasonic generator 14 cavitates the water in the water washing tank 7, further improves the contact efficiency of the air and the water, and thus efficiently cleans and dedusts the air.

[0041] A telescopic cover 31 is assembled at the air inlet of the air inlet pipe 3, so that the telescopic cover 31 can be flexibly aligned with the dust raising direction. When it is necessary to extend the length of use of the telescopic cover 31, the electric screw rod 1222 is activated, and the electric screw rod 1222 can threadedly adjust the telescopic length of the sleeve pipe 123 in the branch pipe 122. The sleeve pipe 123 will synchronously drive the telescopic pipe 125 to be telescoped during the adjustment, so that the caliber and depth of the telescopic cover 31 can be changed, thereby flexibly adapting to dust sources of different distances and ranges. In order to further improve the dust reduction efficiency of the device, an air suction mechanism 12 is arranged inside the telescopic cover 31. The air sucked in by the fan 5 through negative pressure is divided and introduced back to the annular pipe 121 at the inlet of the air inlet pipe 3. The sucked air is then filtered by the filter screen 61 and then washed in the water washing tank 7. The air is injected into the outermost water chamber in the form of bubbles through the air pipe 71 for primary water washing. Subsequently, the aeration mechanism 13 starts to work: the motor 2 137 drives the eccentric connecting rod 84 mechanism, and drives the piston rods of all the piston cylinders 135 to synchronously reciprocate. When the piston rod is retracted, the gas at the top of the outer water chamber is sucked into the piston cylinder 135 through the air outlet valve 133. When the piston rod is pushed out, the gas in the cylinder is pressed into the aeration pipe 132 at the bottom of the next water chamber through the air inlet valve 134, so that the air passes through the water body in the form of more fine bubbles again. Such circulation makes the gas forced to pass through different water chambers along the "S" shaped path set by the partition plate 131, and undergoes repeated aeration cleaning, greatly prolongs the air-water contact time, and multiplies the purification effect. In addition, the ultrasonic generator 14 penetrating through the water chambers continuously works. The cavitation effect generated by the ultrasonic generator 14 makes water molecules violently oscillate, generating countless micron-sized bubbles, which not only further crushes the air bubbles introduced, effectively increases the gas-liquid contact surface area, but also effectively shakes off the small particles remaining in the gas, and finally realizes almost complete cleaning. Thus, the air can be effectively cleaned and safely discharged from the air outlet frame 73 at the top.

[0042] Although the present application is described in detail with reference to the above embodiments, it is apparent to those skilled in the art, through the disclosure, that various changes or modifications can be made to the present application without departing from the principles and spirit of the application defined in the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used for explanation, but not for limitation of the present application, and the protection scope is defined by the content of the claims.

Claims

1. A green building construction dust treatment device, comprising a casing (2) fixed on a moving seat (1), an air inlet pipe (3) is communicated on the casing (2), and a driving member (4) for driving the air inlet pipe (3) to rotate is arranged on the casing (2); characterized in that A fan (5) is fixed on the inner wall of the casing (2), a filter box (6) is communicated at the bottom of the fan (5), filter screens (61) are circumferentially and intervally arranged on the outer wall of the filter box (6), a ventilation frame (62) is arranged outside the filter box (6), a ventilation chamber is formed between the filter box (6) and the ventilation frame (62), a partition plate (63) is fixed in a star shape in the filter box (6), the filter box (6) is equally divided into a plurality of filter channels by the partition plate (63), a water washing box (7) is fixed on the bottom of the inner wall of the casing (2), the water washing box (7) is communicated to the ventilation frame (62) through an air pipe (71), a nozzle (72) is arranged on the pipe section in the water washing box (7), and an air outlet frame (73) is communicated to the top of the water washing box (7); A shielding mechanism (8) is arranged in the filter box (6); The shielding mechanism (8) comprises an upper shielding plate (81) and a lower shielding plate (82) which are respectively hingedly arranged on the upper and lower portions of the filter channel of the filter box (6), a spring (821) is arranged between the filter box (6) and the lower shielding plate (82), electromagnets (83) are arranged on the inner wall of the filter box (6) and the lower shielding plate (82), and the upper shielding plate (81) and the lower shielding plate (82) are connected by a connecting rod (84); A dust removal mechanism (9) is arranged on the outer wall of the filter box (6); The dust removal mechanism (9) comprises air pumps (10) which are fixedly installed on the air outlet frame (73), the number of the air pumps (10) is consistent with that of the filter screens (61) on the filter box (6), the inlets of the air pumps (10) are communicated to the top of the water washing box (7), the water level in the water washing box (7) is lower than that of the air pumps (10), a plurality of groups of supporting plates (91) are circumferentially and intervally fixed to the outer wall of the filter box (6), each group of the supporting plates (91) comprises two supporting plates which are fixedly arranged on the outer wall of the filter box (6), each group of the supporting plates (91) corresponds to the filter screens (61) of the filter box (6), a plurality of air jet pipes (102) are fixedly installed on the inner side of each group of the supporting plates (91) at intervals, the air jet pipes (102) are provided with nozzles and face the corresponding filter screens (61) on the same side, the air jet pipes (102) are sealingly and rotatably installed with blade plates (92) through pipe bodies, the blade plates (92) are provided with air outlets at the connection positions of the air jet pipes (102), the air outlets of the blade plates (92) are initially offset from the nozzles of the air jet pipes (102), a plurality of the blade plates (92) on the same side are connected with each other through connecting plates (93), the outlets of the air pumps (10) are communicated to each air jet pipe (102) on the same side through air suction pipes (101), a gear two (94) is fixedly connected to the rotating shaft of the upper shielding plate (81), a gear three (95) is fixedly connected to the rotating shaft of one blade plate (92) on the top of each group of the supporting plates (91), and the gear two (94) is engaged with the gear three (95).

2. The green and environment-friendly dust reduction device for building construction according to claim 1, characterized in that, The driving piece (4) comprises a tooth ring (41), a motor (42) and a gear (43), the tooth ring (41) is fixedly connected to the outer wall of the rotating shaft of the air inlet pipe (3), the motor (42) is fixedly installed on the top of the shell (2), the output shaft of the motor (42) is fixedly installed with the gear (43), and the gear (43) and the tooth ring (41) are engaged with each other.

3. The green building construction dust treatment device according to claim 2, characterized in that, The air inlet pipe (3) is provided with a telescopic cover (31) at the air inlet, the telescopic cover (31) can be telescopic, the inner wall of the telescopic cover (31) is provided with an air extraction mechanism (12), the air extraction mechanism (12) is used for improving the air inlet efficiency of the telescopic cover (31), the air extraction mechanism (12) comprises an annular pipe (121) fixedly installed at the air inlet of the air inlet pipe (3), the annular pipe (121) is communicated with the fan (5) and the filter box (6) through a pipeline, a plurality of branch pipes (122) are communicated in the circumferential direction of the annular pipe (121), the sleeve pipes (123) are sleeved on the branch pipes (122) in a sealing sliding mode, the joints (124) are installed on the ends, away from the branch pipes (122), of the sleeve pipes (123), the joints (124) are fixedly connected to the inner wall of the telescopic cover (31), the telescopic pipes (125) are sealingly communicated between adjacent sleeve pipes (123) through the joints (124), and the telescopic pipes (125) are provided with openings on the wall of the telescopic cover (31).

4. The green building construction dust treatment device according to claim 3, characterized in that, The branch pipes (122) are fixedly connected with the fixing frames (1221), the electric lead screws (1222) are installed on the fixing frames (1221), and the electric lead screws (1222) are threadedly connected with the corresponding sleeve pipes (123).

5. The green building construction dust treatment device according to claim 4, characterized in that, The lower part of the shell (2) is provided with an aeration mechanism (13) for aeration treatment of air in the water washing box (7), the aeration mechanism (13) comprises a plurality of isolation plates (131) fixedly arranged in the water washing box (7), the isolation plates (131) separate the water washing box (7) into independent chambers, the air pipes (71) are respectively communicated to one independent chamber inside the water washing box (7), the water washing box (7) is provided with an aeration pipe (132) at the bottom of the inner independent chamber, each independent chamber of the water washing box (7) is communicated with an air outlet valve (133) higher than the water level, one end of the aeration pipe (132) is communicated with an air inlet valve (134), the air outlet valve (133) and the air inlet valve (134) are one-way valves, wherein the air outlet valve (133) is one-way communicated from inside to outside of the water washing box (7), the air inlet valve (134) is one-way communicated from outside to inside of the aeration pipe (132), a plurality of piston cylinders (135) are fixedly installed on the outer wall of the water washing box (7), two ports of the piston cylinder (135) are respectively communicated with adjacent air outlet valves (133) and air inlet valves (134) through pipelines, the piston rods of adjacent piston cylinders (135) are eccentrically connected through a connecting block (136), a motor two (137) is fixedly installed on the outer wall of the water washing box (7), the output shaft of the motor two (137) is connected with the rotating shaft of one of the connecting blocks (136).

6. The green building construction dust treatment device according to claim 5, characterized in that, The water washing box (7) is further provided with an ultrasonic generator (14) penetrating the isolation plates (131) in the water washing box (7).

7. The green building construction dust treatment device according to claim 6, characterized in that, The bottom of the filter box (6) is communicated with a dust removal pipe (11) penetrating the bottom of the shell (2), the lower part of the shell (2) is provided with a chamber, a guide frame (151) is fixedly arranged in the chamber of the shell (2), and a dust collecting box (15) is slidably installed on the guide frame (151).

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