CN112999790A - Efficient dust-reducing equipment for urban building - Google Patents
Efficient dust-reducing equipment for urban building Download PDFInfo
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- CN112999790A CN112999790A CN202110284314.9A CN202110284314A CN112999790A CN 112999790 A CN112999790 A CN 112999790A CN 202110284314 A CN202110284314 A CN 202110284314A CN 112999790 A CN112999790 A CN 112999790A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/022—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by using a liquid curtain
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Abstract
The invention discloses high-efficiency dust-settling soil equipment for urban buildings, and particularly relates to the field of dust settling. According to the invention, the drainage type dust falling mechanism is arranged, and the other part of water in the inner cavity of the second circulating type sewage pipe is guided to the interior of the second horizontally communicated water outlet pipe through the first horizontally communicated water outlet pipe, so that the water flow at the top of the second circulating type sewage pipe flows out of the second horizontally communicated water outlet pipes at two sides respectively to form two water curtains, and the convenience and efficiency of integral dust falling are relatively improved.
Description
Technical Field
The invention relates to the technical field of dust fall, in particular to high-efficiency dust fall soil equipment for urban buildings.
Background
The dust fall is the deposit of dust in the atmosphere, and the source of dust particulate matter in the atmosphere can be divided into natural source and artificial source two kinds, all has the source of once and secondary particulate matter in natural source and artificial source, and the source of once particulate matter in the natural source mainly has: soil particles, sediments on the earth surface, volcanic dust formed by volcanic eruption, smoke particles generated by various fires, atmospheric aerosol generated by wave breaking and bubble explosion in the ocean, cosmic dust formed by decomposing meteorite into the earth atmosphere, pollen, spores of the biological world and the like, wherein the sources of the secondary particles mainly comprise: the artificial source mainly comprises industrial dust generated in industrial processes such as mines, open-air quarries and the like, and atmospheric dust fall is the reflection of weather phenomena such as floating dust, raised sand, sand storm and the like, so the space-time distribution of the method is basically consistent with the space-time distribution of sand weather, on a large time scale, the dustfall frequency changes along with the change of climate and the evolution of environment, and the modern dust accumulation example and the fact of 'rain soil' in historical period show that the dustfall frequent period corresponds to the dry and cold period of climate, the low-incidence period corresponds to the warm and wet period, based on the loess accumulation rate estimate, highly windy dusty weather in geological historical periods may be more frequent than today, and students are dissatisfied with this view, on a short time scale, the sand-dust weather frequency is mainly influenced by the wind energy environment from the perspective of the change of the year.
Can produce more dust and dust at city civil engineering's in-process, one influences near resident and resident family, influences the holistic afforestation in city two, and traditional dust fall mode atomizes the blowout with water around the building place, reaches the effect of dust fall, but this kind of traditional dust fall mode, dust fall efficiency is general on the one hand, and on the other hand comparatively wastes water, so be unfavorable for in-service use.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide an efficient dust-settling device for urban buildings, in which a drainage type dust-settling mechanism is provided, and another part of water in an inner cavity of a second circulating sewage pipe is guided to the inside of the second horizontally communicated water outlet pipe through a first horizontally communicated water outlet pipe, so that water flows at the top of the second circulating sewage pipe respectively flow out from the second horizontally communicated water outlet pipes at two sides to form two water curtains, thereby solving the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the efficient dust-fall soil equipment for the urban building comprises a circulating water storage mechanism for dust fall, wherein the top of the circulating water storage mechanism for dust fall is communicated with a drainage type dust fall mechanism, wind-force guide type frame plate mechanisms are clamped on two sides of the drainage type dust fall mechanism, the number of the wind-force guide type frame plate mechanisms is multiple, and the two corresponding wind-force guide type frame plate mechanisms are arranged in mirror symmetry with respect to a vertical central line of the drainage type dust fall mechanism;
drainage formula dust fall mechanism includes square fixed frame, first air inlet tank has all been seted up to square fixed frame's both sides, square fixed frame keeps away from the both sides of first air inlet tank and has all seted up the second air inlet tank, second intercommunication formula activity dead slot has been seted up to square fixed frame's bottom, square fixed frame's inner chamber is pegged graft and is had the circulating sewage pipe of second, the both sides of the circulating sewage pipe of second communicate respectively and are equipped with first lateral water outlet and second lateral water outlet, the top both sides of the circulating sewage pipe of second all communicate and are equipped with a plurality of first horizontal intercommunication outlet pipes.
In a preferred embodiment, the first air inlet groove, the second air inlet groove and the second communicating movable empty groove are communicated, and the first lateral water outlets and the corresponding second lateral water outlets are arranged in a one-to-one correspondence manner.
In a preferred embodiment, it is a plurality of first horizontal intercommunication outlet pipe all is the one-to-one setting, and is a plurality of the bottom of first horizontal intercommunication outlet pipe all communicates and is equipped with the horizontal intercommunication outlet pipe of second, the top fixed mounting of the circulating sewer pipe of second has the support type division board, the quantity of the horizontal intercommunication outlet pipe of second sets up to a plurality ofly, and is a plurality of the horizontal intercommunication outlet pipe of second sets up respectively in the both sides of support type division board, all there is plastic type suspension backup pad through adhesive fixed mounting between the horizontal intercommunication outlet pipe of second and the adjacent first horizontal intercommunication outlet pipe.
In a preferred embodiment, the bottom of the first lateral water outlet and the bottom of the second lateral water outlet are fixedly provided with a plurality of arc-shaped drainage guide plates, the arc-shaped drainage guide plates are fixedly arranged on the side surface of the second circulating sewage pipe, the arc-shaped drainage guide plates are arranged in a cross shape in sequence, the two sides of each arc-shaped drainage guide plate are welded with concave side guard plates in an ultrasonic mode, and a plurality of hollow-out type preformed grooves are formed in the arc-shaped drainage guide plates.
In a preferred embodiment, the circulating water storage mechanism for dust fall comprises a supporting type water storage frame, first communicating type movable empty grooves are fixedly installed at the top of the supporting type water storage frame, the supporting type water storage frame and adjacent first communicating type movable empty grooves are arranged in a one-to-one correspondence mode, and the supporting type water storage frame is communicated with the adjacent first communicating type movable empty grooves.
In a preferred embodiment, a circulating sewage storage bin is arranged in the supporting water storage frame, a plurality of circulating water pumps are fixedly mounted in an inner cavity of the circulating sewage storage bin, a first circulating sewage pipe is communicated with the top of each circulating water pump, and each first circulating sewage pipe is communicated with an adjacent second circulating sewage pipe.
In a preferred embodiment, a plurality of arc-shaped oblique suspension supporting legs are fixedly mounted at the bottom of the support type water storage frame through bolts, anti-skid supporting foot pads are fixedly mounted at the bottoms of the arc-shaped oblique suspension supporting legs, and the arc-shaped oblique suspension supporting legs and the adjacent anti-skid supporting foot pads are arranged in a one-to-one correspondence manner.
In a preferred embodiment, the wind guiding type frame plate mechanism comprises a fitting type square plate, a hollow air inlet groove is formed in the center of the fitting type square plate, and a cross support frame is fixedly installed in the center of the inner cavity of the hollow air inlet groove.
In a preferred embodiment, the inner cavity of the hollow air inlet tank is fixedly provided with a plurality of dust suction type fans through bolts, the dust suction type fans are fixedly arranged inside corresponding cross-shaped supporting frames, and one side of each cross-shaped supporting frame is fixedly provided with a plurality of protective net racks through bolts.
In a preferred embodiment, one side fixed mounting of laminating type square slab has the corresponding type picture peg, the outer wall of corresponding type picture peg has support type horizontal bar through adhesive fixed mounting, the corresponding type picture peg all is the one-to-one setting with adjacent support type horizontal bar, the one end of corresponding type picture peg has spacing type rubber sand grip through adhesive fixed mounting.
The invention has the technical effects and advantages that:
1. according to the invention, the drainage type dust falling mechanism is arranged, when water flow in the inner cavity of the second circulating type sewage pipe flows out from the first side water outlet and the second side water outlet, the water flow is sequentially left at the tops of the plurality of arc-shaped drainage guide plates to achieve a primary dust falling effect on dust in the air, and the other part of water in the inner cavity of the second circulating type sewage pipe is guided into the second transversely communicated water outlet pipe through the first transversely communicated water outlet pipe, so that the water flow at the tops of the second circulating type sewage pipe respectively flows out from the second transversely communicated water outlet pipes at two sides to form two water curtains, and finally, the water flows into the inner cavity of the circulating type sewage storage bin to achieve a secondary dust falling effect, so that the convenience and the efficiency of integral dust falling are;
2. according to the invention, the wind-force guiding type frame plate mechanism is arranged, when the attaching type square plate is installed, the corresponding inserting plate on the side surface of the attaching type square plate and the limiting type rubber raised line are clamped in the corresponding inner cavity of the second air inlet groove, the supporting type transverse bar achieves the supporting effect, so that the attaching type square plate is fixed more stably, and after the attaching type square plate is fixed, the dust around the attaching type square plate is blown to the inner part of the water curtain by the dust collection type fan, so that the whole dust settling efficiency is further improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic bottom structure of the present invention.
Fig. 3 is a schematic structural diagram of a circulating water storage mechanism and a drainage type dust settling mechanism for settling dust.
Fig. 4 is a structural cross-sectional view of the circulating water storage mechanism and the flow-guiding type dust settling mechanism for dust settling.
FIG. 5 is an enlarged view of the portion A of FIG. 4 according to the present invention.
FIG. 6 is an enlarged view of the portion B of FIG. 4 according to the present invention.
FIG. 7 is an enlarged view of the structure of the portion C of FIG. 4 according to the present invention.
Fig. 8 is a partial structural sectional view of the wind guide type frame plate mechanism of the present invention.
FIG. 9 is an enlarged view of the structure of the portion D in FIG. 8 according to the present invention.
The reference signs are: 1 circulating water storage mechanism for dust fall, 101 supporting type water storage frame, 102 first communicating type movable empty groove, 103 circulating type sewage storage bin, 104 circulating type water pump, 105 first circulating type sewage pipe, 106 arc inclined suspension supporting leg, 107 anti-skid supporting foot pad, 2 flow guiding type dust falling mechanism, 21 square fixed frame, 22 first air inlet groove, 23 second air inlet groove, 24 second communicating type movable empty groove, 25 second circulating type sewage pipe, 26 first side water outlet, 27 second side water outlet, 28 first transverse communication water outlet pipe, 29 second transverse communication water outlet pipe, 210 supporting type separation plate, 211 plastic type suspension supporting plate, 212 arc flow guiding guide plate, 213 type side guard plate, 214 type hollow reserved groove, 3 wind guiding type frame plate mechanism, 31 laminating type square plate, 32 hollow type air inlet groove, 33 cross supporting frame, 34 dust suction type fan, 35 protective type protective net rack, 36 corresponding type insertion plates, 37 supporting type transverse strips and 38 limiting type rubber convex strips.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the drawings of fig. 1-9 of the specification, one embodiment of the present invention is provided:
a high-efficiency dust-falling soil device for urban construction comprises a circulating water storage mechanism 1 for dust falling, wherein the top of the circulating water storage mechanism 1 for dust falling is communicated with a drainage type dust falling mechanism 2, two sides of the drainage type dust falling mechanism 2 are respectively clamped with a wind-force guiding type frame plate mechanism 3, the number of the wind-force guiding type frame plate mechanisms 3 is multiple, two corresponding wind-force guiding type frame plate mechanisms 3 are respectively arranged in mirror symmetry with respect to the vertical center line of the drainage type dust falling mechanism 2, the drainage type dust falling mechanism 2 comprises a square fixed frame 21, two sides of the square fixed frame 21 are respectively provided with a first air inlet groove 22, two sides of the square fixed frame 21 far away from the first air inlet grooves 22 are respectively provided with a second air inlet groove 23, the bottom of the square fixed frame 21 is provided with a second communicated movable empty groove 24, and an inner cavity of the square fixed frame 21 is inserted with a second sewage, the two sides of the second circulating sewage pipe 25 are respectively communicated with a first side water outlet 26 and a second side water outlet 27, and the two sides of the top of the second circulating sewage pipe 25 are respectively communicated with a plurality of first horizontal communicated water outlet pipes 28.
The first air inlet groove 22, the second air inlet groove 23 and the second communication type movable empty groove 24 are communicated, the first side water outlets 26 and the corresponding second side water outlets 27 are arranged in a one-to-one correspondence manner, the plurality of first horizontal communication water outlet pipes 28 are arranged in a one-to-one correspondence manner, the bottom parts of the plurality of first horizontal communication water outlet pipes 28 are communicated with and provided with second horizontal communication water outlet pipes 29, the top part of the second circulating type sewage pipe 25 is fixedly provided with a supporting type partition plate 210, the number of the second horizontal communication water outlet pipes 29 is arranged in a plurality, the plurality of second horizontal communication water outlet pipes 29 are respectively arranged at two sides of the supporting type partition plate 210, a plastic type supporting plate 211 is fixedly arranged between each second horizontal communication water outlet pipe 29 and the adjacent first horizontal communication water outlet pipe 28 through an adhesive, and a plurality of arc-shaped drainage guide plates 212 are fixedly arranged at the bottom parts of the first side water outlet 26 and the second side water outlet 27, the equal fixed mounting of a plurality of arc drainage baffle 212 is in the side of the circulating sewage pipe 25 of second, and a plurality of arc drainage baffle 212 all are the fork form and arrange the setting in proper order, and the equal ultrasonic welding in both sides of arc drainage baffle 212 has interior concavity side backplate 213, and a plurality of fretwork type preformed grooves 214 have been seted up to the inside of arc drainage baffle 212.
The circulating water storage mechanism 1 for dust fall comprises a supporting type water storage frame 101, a first communicating type movable empty groove 102 is fixedly installed at the top of the supporting type water storage frame 101, the supporting type water storage frame 101 and the adjacent first communicating type movable empty grooves 102 are arranged in a one-to-one correspondence mode, the supporting type water storage frame 101 is communicated with the adjacent first communicating type movable empty grooves 102, a circulating type sewage storage bin 103 is arranged inside the supporting type water storage frame 101, a plurality of circulating type water pumps 104 are fixedly installed in an inner cavity of the circulating type sewage storage bin 103, a first circulating type sewage pipe 105 is communicated with the top of each circulating type water pump 104, the first circulating type sewage pipe 105 is communicated with the adjacent second circulating type sewage pipe 25, a plurality of arc-shaped inclined suspension supporting legs 106 are fixedly installed at the bottom of the supporting type water storage frame 101 through bolts, and anti-skid supporting foot pads 107 are fixedly installed at the bottoms of, the arc-shaped inclined suspension supporting legs 106 and the adjacent anti-skid supporting foot pads 107 are arranged in a one-to-one correspondence manner.
Wind-force guide type frame plate mechanism 3 is including laminating type square plate 31, cavity type air inlet groove 32 has been seted up to the central point of laminating type square plate 31, the inner chamber central point of cavity type air inlet groove 32 puts fixed mounting has cross braced frame 33, the inner chamber of cavity type air inlet groove 32 has a plurality of dust absorption formula fans 34 through bolt fixed mounting, the equal fixed mounting of a plurality of dust absorption formula fans 34 is inside corresponding cross braced frame 33, there are a plurality of protection type rack 35 one side of cross braced frame 33 through bolt fixed mounting, one side fixed mounting of laminating type square plate 31 has corresponding type picture peg 36, the outer wall of corresponding type picture peg 36 has support type horizontal bar 37 through adhesive fixed mounting, corresponding type picture peg 36 all is the one-to-one setting with adjacent support type horizontal bar 37, there is spacing type rubber sand grip 38 corresponding type picture peg 36's one end through adhesive fixed mounting.
The working principle is as follows: firstly, the parts required by the invention are taken out for convenient installation and use, the arc-shaped inclined suspension support leg 106 is inserted in the corresponding building site through the anti-skid support foot pad 107, the supporting type water storage frame 101 is limited and primarily fixed, the two circulating water pumps 104 are respectively used for water inlet and water outlet, so that the water in the inner cavity of the second circulating sewage pipe 25 keeps flowing in one direction, when the inner cavity of the second circulating sewage pipe 25 flows out from the first side water outlet 26 and the second side water outlet 27, the water is sequentially left at the tops of the plurality of arc-shaped drainage guide plates 212 to primarily reduce dust in the air, the other part of the water in the inner cavity of the second circulating sewage pipe 25 is guided to the inside of the second transverse communication water outlet pipe 29 through the first transverse communication water outlet pipe 28, so that the water flow at the top of the second circulating sewage pipe 25 respectively flows out from the second transverse communication water outlet pipes 29 at two sides, two water curtains are formed, water flows into an inner cavity of the circulating sewage storage bin 103 finally to achieve the effect of secondary dust fall, when the attached square plate 31 is installed, the attached square plate 31 is clamped in the inner cavity of the corresponding second air inlet groove 23 through the corresponding inserting plate 36 and the limiting rubber raised line 38 on the side face of the attached square plate, the supporting cross bar 37 achieves the supporting effect, the attached square plate 31 is fixed more stably, and after the attached square plate 31 is fixed, the dust suction type fan 34 blows dust around the dust suction type square plate to the inner portion of the water curtains, so that the whole dust fall efficiency is improved.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a city is high-efficient dust fall soil equipment for building, includes that the dust fall is with circulation water storage mechanism (1), its characterized in that: the top of the circulating water storage mechanism (1) for dust fall is communicated with a drainage type dust fall mechanism (2), two sides of the drainage type dust fall mechanism (2) are respectively clamped with a plurality of wind-force guide type frame plate mechanisms (3), and the two corresponding wind-force guide type frame plate mechanisms (3) are arranged in mirror symmetry with respect to a vertical central line of the drainage type dust fall mechanism (2);
drainage formula dust fall mechanism (2) are including square fixed frame (21), first air inlet groove (22) have all been seted up to the both sides of square fixed frame (21), square fixed frame (21) are kept away from the both sides of first air inlet groove (22) and have all been seted up second air inlet groove (23), second intercommunication formula activity dead slot (24) have been seted up to the bottom of square fixed frame (21), the inner chamber of square fixed frame (21) is pegged graft and is had second circulating sewage pipe (25), the both sides of second circulating sewage pipe (25) communicate respectively and are equipped with first lateral water outlet (26) and second lateral water outlet (27), the top both sides of second circulating sewage pipe (25) all communicate and are equipped with a plurality of first horizontal intercommunication outlet pipes (28).
2. The efficient dust-settling soil equipment for urban construction according to claim 1, wherein: the first air inlet groove (22), the second air inlet groove (23) and the second communicated movable empty groove (24) are communicated, and the first side water outlets (26) and the corresponding second side water outlets (27) are arranged in a one-to-one correspondence mode.
3. The efficient dust-settling soil equipment for urban construction according to claim 1, wherein: it is a plurality of first horizontal intercommunication outlet pipe (28) all are the one-to-one setting, and are a plurality of the bottom of first horizontal intercommunication outlet pipe (28) all communicates and is equipped with the horizontal intercommunication outlet pipe of second (29), the top fixed mounting of the circulating sewage pipe of second (25) has support type division board (210), the quantity of the horizontal intercommunication outlet pipe of second (29) sets up to a plurality ofly, and is a plurality of the horizontal intercommunication outlet pipe of second (29) sets up respectively in the both sides of supporting type division board (210), all there is plastic type suspension backup pad (211) through adhesive fixed mounting between the horizontal intercommunication outlet pipe of second (29) and adjacent first horizontal intercommunication outlet pipe (28).
4. The efficient dust-settling soil equipment for urban construction according to claim 1, wherein: the equal fixed mounting in bottom of first side delivery port (26) and second side delivery port (27) has a plurality of arc drainage baffle (212), and is a plurality of the equal fixed mounting in the side of the circulating sewage pipe of second (25) of arc drainage baffle (212), and is a plurality of arc drainage baffle (212) all are the fork form and arrange the setting in proper order, the equal ultrasonic welding in both sides of arc drainage baffle (212) has interior concave type side backplate (213), a plurality of fretwork type preformed grooves (214) have been seted up to the inside of arc drainage baffle (212).
5. The efficient dust-settling soil equipment for urban construction according to claim 1, wherein: the circulating water storage mechanism (1) for dust fall comprises a supporting type water storage frame (101), wherein a first communication type movable empty groove (102) is fixedly mounted at the top of the supporting type water storage frame (101), the supporting type water storage frame (101) and the adjacent first communication type movable empty groove (102) are arranged in a one-to-one correspondence mode, and the supporting type water storage frame (101) is communicated with the adjacent first communication type movable empty groove (102) in a homogeneous mode.
6. The efficient dust and soil reducing device for the urban building according to claim 5, wherein: circulating sewage storage storehouse (103) is seted up to the inside of support type water storage frame (101), the inner chamber fixed mounting of circulating sewage storage storehouse (103) has a plurality of circulating water pumps (104), the top intercommunication of circulating water pump (104) is equipped with first circulating sewage pipe (105), first circulating sewage pipe (105) are linked together with adjacent second circulating sewage pipe (25).
7. The efficient dust and soil reducing device for the urban building according to claim 5, wherein: the bottom of support type water storage frame (101) has a plurality of arcs to hang supporting leg (106) to one side through bolt fixed mounting, the bottom fixed mounting that the arc hung supporting leg (106) to one side has antiskid type to support callus on the sole (107), arc hung supporting leg (106) to one side all is the one-to-one setting with adjacent antiskid type support callus on the sole (107).
8. The efficient dust-settling soil equipment for urban construction according to claim 1, wherein: wind-force guide type frame plate mechanism (3) are including laminating type square plate (31), cavity type intake stack (32) have been seted up to the central point of laminating type square plate (31), the inner chamber central point of cavity type intake stack (32) puts fixed mounting has cross braced frame (33).
9. The efficient dust-settling soil equipment for urban construction according to claim 8, wherein: the inner chamber of cavity type air inlet groove (32) has a plurality of dust absorption formula fan (34), a plurality of through bolt fixed mounting inside corresponding cross braced frame (33) dust absorption formula fan (34) equal fixed mounting, there are a plurality of protection type rack (35) through bolt fixed mounting in one side of cross braced frame (33).
10. The efficient dust-settling soil equipment for urban construction according to claim 8, wherein: one side fixed mounting of laminating type square board (31) has corresponding type picture peg (36), the outer wall that corresponds type picture peg (36) has support type horizontal bar (37) through adhesive fixed mounting, correspond type picture peg (36) and adjacent support type horizontal bar (37) and all be the one-to-one setting, the one end that corresponds type picture peg (36) has spacing type rubber sand grip (38) through adhesive fixed mounting.
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| CN202110284314.9A CN112999790A (en) | 2021-03-17 | 2021-03-17 | Efficient dust-reducing equipment for urban building |
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Application publication date: 20210622 |