A dust reduction device and method for building construction

Abstract

The present invention discloses a dust reduction device and method for building construction in the technical field of dust reduction and filtering devices, comprising a plurality of water spray racks and a plurality of modular water pipe assemblies, each water spray rack being provided with a plurality of independently driven lifting units, at least one set of modular water pipe assemblies being rotatably installed between two horizontally adjacent lifting units, each modular water pipe assembly comprising primary water pipes on both sides for rotationally connecting with corresponding lifting units, at least one secondary water pipe being sealed and telescopically connected between the two primary water pipes, the rotational connection between the lifting unit and the primary water pipe comprising at least a horizontal rotational connection and a vertical rotational connection, a strip water spray port being provided at the bottom of each modular water pipe assembly, the present invention can realize multi-layer staggered water curtain-type dust reduction, network-type dust reduction and multi-angle and multi-form fixed-point dust reduction operations, thereby improving dust reduction efficiency and applicability.

Description

Technical Field

[0001] The invention relates to the technical field of dust reduction and filtering devices, and in particular to a dust reduction device and method for building construction. Background Art

[0002] Huge amounts of dust are easily generated during the construction process. In order to prevent the dust from spreading to the external construction area, a spray water spray rack is usually installed on the wall of the construction fence to absorb the dust in the air through water mist to achieve a filtering effect. However, this method can generally only perform fixed spraying, and there is a large gap between the passages, which makes it impossible to effectively intercept, block and filter the dust particles. The effective filtering contact area of ​​the dust is small. If the filtering effect needs to be improved, the amount of water spray can only be increased. This causes the water mist to easily drift to the area outside the fence, causing interference to pedestrians outside the fence. In addition, the dust removal and blocking effect is not good, and the function is too single, which cannot be well adapted to the fixed-point dust removal operation in the dusty area of ​​the construction site.

[0003] Based on this, the present invention designs a dust reduction device and method for building construction to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a dust reduction device and method for building construction to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A dust suppression device for building construction comprises a plurality of water spray racks and a plurality of modular water pipe assemblies, a plurality of groups of modular water pipe assemblies are arranged between two horizontally adjacent water spray racks, each of the water spray racks is provided with an installation slot, a plurality of groups of independently driven lifting units are arranged vertically side by side in the front and back of the installation slot, at least one group of modular water pipe assemblies is rotatably installed between two horizontally adjacent lifting units, each of the modular water pipe assemblies comprises primary water pipes on both sides for rotatably connecting with the corresponding lifting units, at least one secondary water pipe is sealed and telescopically connected between the two primary water pipes, the rotational connection between the lifting unit and the primary water pipe comprises at least a horizontal rotational connection and a vertical rotational connection, and a strip water spray outlet is arranged at the bottom of each modular water pipe assembly.

[0007] A further solution of the present invention: the modular water pipe assembly includes an external water pipe box, and both ends of the external water pipe box are provided with damping ball head type connecting pipe openings for sealing connection with the secondary water pipe box or the primary water pipe box.

[0008] A further solution of the present invention: a top nozzle is arranged on the top of the module water pipe assembly, and side nozzles are arranged on the front and rear side walls of the module water pipe assembly.

[0009] A further solution of the present invention: the lifting unit includes a screw slot frame, a lifting screw is vertically rotatably installed in the screw slot frame, a driving motor for driving the lifting screw to rotate is installed on the top of the screw slot frame, a screw slider is threadedly sleeved on the lifting screw, the screw slider is vertically slidably clamped in the screw slot frame, a connecting frame block is fixed to the outer end face of the screw slider, a horizontal rotating frame is horizontally rotatably installed on the connecting frame block, and a longitudinal rotating frame for vertically rotating the primary water pipe box is installed in the middle of the horizontal rotating frame.

[0010] A further solution of the present invention: the longitudinal rotating frame cooperates with the primary water pipe box to install a snap-on quick-release structure, the connecting frame block and the longitudinal rotating frame are installed with fastening bolts for limiting rotation, a water pipe routing groove for water pipe following routing is installed on the vertical outer wall on one side of each of the screw rod slot frames, and the horizontal rotating frame is provided with a water pipe lead-out hole for conveniently introducing the water pipe into the water pipe routing groove.

[0011] A further solution of the present invention: the first-level water pipe box includes a plurality of first-level top inclined nozzles spaced apart at the top, a first-level main water spray port is axially provided in a strip shape at the bottom of the first-level water pipe box, a plurality of first-level side inclined nozzles are axially spaced apart at the front and rear panels of the first-level water pipe box, a pressure-operated slide groove communicating with the first-level side inclined nozzles is axially provided in the front and rear panels of the module water pipe assembly, the pressure-operated slide groove is provided with an opening in the direction of the horizontal rotating frame, a pressure-operated slide groove is slidably inserted with a pressure-operated slide, a plurality of slide connecting ports are axially spaced apart on the pressure-operated slide groove, and a pressure-operated spring for pressing the outer end of the pressure-operated slide groove against the panel of the horizontal rotating frame is installed in the pressure-operated slide groove.

[0012] A further solution of the present invention: the secondary water pipe box includes a plurality of secondary top inclined nozzles arranged at intervals on the top, a strip-shaped secondary main water spray outlet opened at the bottom and a plurality of secondary side inclined nozzles arranged at intervals on the front and back sides, the front and rear inner walls of the secondary water pipe box are axially provided with expansion grooves, the upper and lower inner walls of the expansion grooves are provided with side slide grooves connected with the plurality of secondary side inclined nozzles, a side opening and closing baffle is vertically slidably installed in the side slide groove by a spring, a baffle connecting port is arranged on the side opening and closing baffle, a expansion block is slidingly provided in the expansion groove, the upper and lower sides of the expansion block are in sliding contact with the outer end heads of the side opening and closing baffles on both sides, and the contact surfaces are arranged as mutually matching wedge-shaped surfaces, when the primary water pipe box is tilted, the primary water pipe box is pulled outward, the end head of the primary water pipe box is separated from the expansion block, and the baffle connecting port is connected with the secondary side inclined nozzles.

[0013] A further solution of the present invention: a sealing frame is fixed to the outer circle of the inner end of the primary water pipe box extending into the secondary water pipe box, and the sealing frame reserves an overflow channel on the inner wall where the primary water pipe box and the secondary water pipe box overlap.

[0014] Another object of the present invention is to provide a dust reduction method for building construction, which specifically comprises the following steps:

[0015] Step 1: During the construction process, first determine the interval and number of water spray racks according to the construction area, and then install multiple water spray racks on the top of the construction fence;

[0016] Step 2: Install at least one set of modular water pipe assemblies on two lifting units on the left and right sides of the water spraying frame to form a water spraying unit;

[0017] Step 4: Determine the working state of the water spray unit according to the dust situation at the construction site: when the dust is small, choose the staggered strip water curtain form to work, that is, multiple water spray units are lifted horizontally to different heights for dust reduction; when the dust is large, choose the mesh filtration form, that is, multiple modular water pipe assemblies are tilted and adjusted to perform networking actions; when it is necessary to carry out fixed-point centralized dust reduction in the construction area, remove one end of one or more modular water pipe assemblies from the lifting unit, and rotate and adjust them to the construction area for centralized dust reduction; when multiple modular water pipe assemblies are set for fixed-point dust reduction, the upper enclosure of the fixed-point area is formed through the cooperation of multiple modular water pipe assemblies to form a surrounding dust reduction area for dust reduction;

[0018] Step 4: After dust reduction is completed, adjust the angles and heights of multiple module water pipe assemblies to perform self-cleaning on the module water pipe assemblies themselves;

[0019] Step 5: After cleaning, adjust the multiple module water pipe assemblies to a horizontal position, and then lower them to the lowest position to complete the overall dust reduction process.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention determines the working state of the water spray unit according to the dust situation at the construction site. When the dust is small, the staggered strip water curtain form is selected to work, that is, multiple water spray units are horizontally lifted to different heights for dust reduction. When the dust is large, the mesh filtering form is selected, that is, multiple modular water pipe assemblies are tilted and adjusted to perform networking. When it is necessary to carry out fixed-point centralized dust reduction in the construction area, one end of one or more modular water pipe assemblies is removed from the lifting unit, and rotated and adjusted to the construction area for centralized dust reduction. When multiple modular water pipe assemblies are set for fixed-point dust reduction, the upper enclosure is formed for the fixed-point area through the cooperation of the multiple modular water pipe assemblies, forming a surrounding dust reduction area for dust reduction, thereby greatly improving the dust reduction and filtering effect, and having stronger functions and practicality;

[0022] 2. The top nozzle and the side nozzle of the present invention can better form a spraying effect in a three-dimensional space. In addition, since the module water pipe assembly is arranged side by side in the longitudinal direction, and the lifting unit can drive the module water pipe assembly to move in an inclined manner, after a long period of work, the angle of the module water pipe assembly can be staggered, so that the strip-shaped water spraying ports, multiple side nozzles and the top nozzle can cooperate with each other to clean the adjacent ones, thereby achieving a self-cleaning effect;

[0023] 3. The water spray unit provided in the present invention is easy and quick to assemble and install, and can be flexibly built according to construction requirements. Moreover, when stored, it will not block too much space on the upper layer of the enclosure, thus facilitating construction and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A schematic diagram of the structure of the modular water pipe assembly in a stored and non-working state;

[0026] Figure 3 A schematic diagram of the structure when the modular water pipe assembly forms a horizontal staggered strip water curtain;

[0027] Figure 4 is a schematic diagram of the structure of the installation slot;

[0028] Figure 5 is a structural schematic diagram of a lifting unit;

[0029] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0030] Figure 7 A schematic diagram of the structure when working with an external water pipe box;

[0031] Figure 8 A schematic diagram of the structure when two sets of modular water pipe assemblies are configured for a single lifting unit to perform mesh filtration and dust reduction;

[0032] Fig. 9 for Figure 1 A partial enlarged view of the middle A;

[0033] Fig.10 is a radial cross-sectional view of a primary water pipe box;

[0034] Fig.11 It is a cross-sectional view of the secondary water pipe box;

[0035] Fig.12 for Fig.11 A partial enlarged view of point C in the middle.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] Spray rack 1, mounting slot 10, lifting unit 2, screw slot rack 20, drive motor 21, lifting screw 22, screw slider 23, connecting frame block 24, horizontal rotating frame 25, longitudinal rotating frame 26, water pipe lead-out hole 27, water pipe wiring slot 28, module water pipe assembly 3, primary water pipe box 30, primary top inclined nozzle 31, primary main water spray port 32, primary side inclined nozzle 33, pressure slide 34, pressure slide plate 35, pressure spring 36, slide plate connecting port 37, secondary water pipe box 40, secondary top inclined nozzle 41, secondary main water spray port 42, secondary side inclined nozzle 43, telescopic slot 44, side slide slot 45, side opening and closing baffle 46, baffle connecting port 47, telescopic block 48, external water pipe box 50, wall box 6, storage slot 60. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 12 The present invention provides a technical solution: a dust suppression device for building construction, comprising a plurality of water spray racks 1 and a plurality of modular water pipe assemblies 3, a plurality of groups of modular water pipe assemblies 3 are arranged between two horizontally adjacent water spray racks 1, each of the water spray racks 1 is provided with an installation slot 10, a plurality of groups of independently driven lifting units 2 are arranged vertically side by side in the front and back of the installation slot 10, at least one group of modular water pipe assemblies 3 is rotatably installed between two horizontally adjacent lifting units 2, each of the modular water pipe assemblies 3 includes primary water pipes on both sides for rotatably connecting with the corresponding lifting units 2, at least one secondary water pipe is sealed and telescopically connected between the two primary water pipes, the rotational connection between the lifting unit 2 and the primary water pipe includes at least a horizontal rotational connection and a vertical rotational connection, and a strip-shaped water spray outlet is arranged at the bottom of each modular water pipe assembly 3;

[0040] When working, 1 is installed on the top of the fence wall of the construction or other use area. Each water spray rack 1 is a separate modular unit, on which multiple independently controlled lifting units 2 are integrated. After the two water spray racks 1 are installed horizontally left and right, a primary water pipe box 30 is connected to each of the relative lifting units 2, and then the two primary water pipe boxes 30 are rotated according to the spacing between the two water spray racks 1 to connect the secondary water pipe boxes 40 of appropriate length or number, so as to form a water spray unit. Multiple lifting units 2 cooperate with multiple groups of modular water pipe assemblies 3 to form multiple groups of water spray units. When not in use, multiple modular water pipe assemblies 3 are horizontally arranged at the bottom, such as Figure 2 As shown, this multi-spray unit is provided with a variety of working modes, such as Figure 3 As shown, each water spray rack 1 has six sets of lifting units 2 built in, and each set of lifting units 2 is connected to a set of modular water pipe components 3. Figure 3 Lift them in groups of two to different heights, with the lowest side preferably facing the construction area. Each module water pipe assembly 3 is set horizontally, with the strip water nozzles spraying water downward. The six water spray units then form a staggered strip water curtain. When smoke and dust from the construction area overflows to the outside, they will be filtered by multiple layers of water curtains, thereby filtering the dust particles layer by layer. Concentrated dust particles at low altitudes will be filtered by more layers of water mist curtains. For environments with large amounts of smoke and dust and requiring higher filtration efficiency, multiple module water pipe assemblies 3 can be coordinated and adjusted into an inclined mesh by controlling the lifting unit 2 of each module water pipe assembly 3, such as Figure 1 As shown, the rotation connection between the primary water pipe box 30 and the lifting unit 2 ensures the rotation of the primary water pipe box 30, and the sealed telescopic connection between the primary top inclined nozzle 31 and the primary water pipe box 30 ensures the supplementary horizontal stretching amount, so that the modular water pipe assembly 3 can cooperate with 2 to adjust the heights of both ends, and finally can form Figure 1 In the staggered mesh filtering area shown, dust will have more effective contact with the module water pipe assembly 3 itself when passing through, and its passing path will be increased. The mesh water mist curtain can improve the filtering effect more thoroughly, wherein each lifting unit 2 can be equipped with multiple sets of module water pipe assemblies 3, for example Figure 8 As shown, each lifting unit 2 is equipped with two sets of module water pipe assemblies 3 at the vertical height. Figure 1 When the mesh filtering is adjusted in the adjustment mode, the mesh forming effect is better and the filtering effect is better. In addition, after the primary water pipe box 30 and the secondary water pipe box 40 are disassembled, the primary water pipe box 30 can be horizontally rotated to the construction area, such as Figure 7As shown, the first-level water pipe box 30 on one side can be disassembled and rotated horizontally toward the construction area. At this time, the first-level water pipe box 30 becomes a water spray dust reduction device in the construction area, which can perform centralized dust reduction treatment on the construction area. The horizontal angle, vertical angle and length can be adjusted, and it can be flexibly extended from the outer wall of the construction area to the construction area. The nearest modular water pipe assembly 3 can be flexibly selected according to the production site for fixed-point dust reduction, and the remaining modular water pipe assemblies 3 can continue to perform enclosure dust reduction, which greatly improves the flexibility and applicability of construction dust reduction.

[0041] The module water pipe assembly 3 includes an external water pipe box 50, and both ends of the external water pipe box 50 are provided with damping ball head type connecting pipe openings for sealing connection with the secondary water pipe box 40 or the primary water pipe box 30;

[0042] During operation, the modular water pipe assembly 3 provided here can not only be disassembled and taken out for use separately, but also can be connected through the equipped external water pipe box 50, such as Figure 7 As shown, the first-level water pipe boxes 30 on both sides are disassembled and rotated horizontally inward, and a second-level water pipe box 40 is added to the first-level water pipe box 30 on one side for extension, and then the outer ends of the two second-level water pipe boxes 40 are sealed and connected through an external water pipe box 50, so that a trapezoidal space is enclosed in the inner area of ​​the construction fence, and when water is sprayed downward, an independent dust reduction space surrounded by a water curtain wall will be formed. Therefore, through the cooperation of the first-level water pipe box 30, the second-level water pipe box 40 and the external water pipe box 50, an independent water curtain wall-like three-dimensional dust reduction space can be formed in the construction area, and the construction dust area can be concentratedly surrounded by dust reduction to prevent dust from spreading toward the surrounding areas of the construction, which greatly improves the efficiency of centralized and fixed-point dust reduction.

[0043] Wherein, a top nozzle is provided at the top of the module water pipe assembly 3, and side nozzles are provided at the front and rear side walls of the module water pipe assembly 3;

[0044] During operation, setting the top nozzle and the side nozzle can better form a spray effect in the three-dimensional space. In addition, since the module water pipe assembly 3 is arranged side by side longitudinally, and the lifting unit 2 can drive the module water pipe assembly 3 to move tilted, after long-term work is completed, the angle of the module water pipe assembly 3 can be staggered, so that the strip water spray outlets, multiple side nozzles and top nozzles can cooperate with each other to clean the adjacent 3, thereby achieving a self-cleaning effect.

[0045] The lifting unit 2 includes a screw slot frame 20, in which a lifting screw 22 is vertically rotatably installed, a driving motor 21 for driving the lifting screw 22 to rotate is installed on the top of the screw slot frame 20, a screw slider 23 is threadedly sleeved on the lifting screw 22, and the screw slider 23 is vertically slidably clamped in the screw slot frame 20, a connecting frame block 24 is fixed to the outer end surface of the screw slider 23, a horizontal rotating frame 25 is horizontally rotatably installed on the connecting frame block 24, and a longitudinal rotating frame 26 for vertically rotating the primary water pipe box 30 is installed in the middle of the horizontal rotating frame 25;

[0046] During operation, the driving motor 21 drives the lifting screw 22 to rotate in both directions to realize the vertical lifting action of the screw slider 23, wherein the horizontal rotating frame 25 rotates horizontally on the connecting frame block 24, and the longitudinal rotating frame 26 rotates vertically on the horizontal rotating frame 25, thereby completing the design requirements of horizontal and vertical rotation of the connecting end of the primary water pipe box 30.

[0047] The longitudinal rotating frame 26 cooperates with the primary water pipe box 30 to install a snap-on quick-release structure;

[0048] Wherein, the connecting frame block 24 and the longitudinal rotating frame 26 are both installed with fastening bolts for limiting rotation;

[0049] During operation, the quick-release structure can facilitate the quick disassembly and installation of the first-level water pipe box 30, and the fastening bolts can be used to limit the rotation angles in the horizontal and vertical directions. Naturally, this can also be achieved through the damping of the rotating connection. As long as the rotation angle is met, the module water pipe assembly 3 can be maintained, and the fastening bolts can be manually adjusted to achieve a more stable holding effect.

[0050] A water pipe routing groove 28 for water pipes to follow the routing is installed on the vertical outer side wall of one side of each screw slot frame 20, and a water pipe outlet hole 27 is opened on the horizontal rotating frame 25 for conveniently introducing the water pipe into the water pipe routing groove 28;

[0051] During operation, the external water pipe is connected to the water pipe wiring groove 28, and then penetrates into the corresponding primary water pipe box 30 from the water pipe outlet hole 27 to realize water supply. The arranged water pipe wiring groove 28 can be raised and lowered together with the movable connecting frame block 24 to ensure the stability of water supply.

[0052] The first-level water pipe box 30 includes a plurality of first-level top inclined nozzles 31 spaced apart at the top, a first-level main water spray port 32 is axially provided at the bottom of the first-level water pipe box 30, a plurality of first-level side inclined nozzles 33 are axially provided at intervals between the front and rear panels of the first-level water pipe box 30, a pressure slide 34 communicating with the first-level side inclined nozzles 33 is axially provided in the front and rear panels of the module water pipe assembly 3, the pressure slide 34 is axially provided with an opening in the direction of the horizontal rotating frame 25, a pressure slide 35 is slidably inserted in the pressure slide 34, a plurality of slide connecting ports 37 are axially spaced apart on the pressure slide 35, and a pressure spring 36 for pressing the outer end of the pressure slide 35 against the panel of the horizontal rotating frame 25 is installed in the pressure slide 34;

[0053] During operation, when the primary water pipe box 30 is in a horizontal position, the pressing slide plate 35 is pressed against the panel of the horizontal rotating frame 25 through the pressing slide plate 35. When the primary water pipe box 30 rotates, the outer end of the pressing slide plate 35 changes its extension amount due to the tilt, and the pressing slide plate 35 undergoes axial displacement. Then, the multiple slide connecting ports 37 on the pressing slide plate 35 change their positions with the primary side inclined nozzles 33 at the corresponding positions. When the primary side inclined nozzles 33 coincide with the slide connecting ports 37, the primary side inclined nozzles 33 are connected to the inside of the primary water pipe box 30, and water is sprayed out from the primary side inclined nozzles 33. Among them, the primary main water spray port 32 is set as the main spray port of the water curtain that sprays water downward, and the primary top inclined nozzle 31 is an auxiliary water outlet for increasing the angle and range of the water mist. The primary side inclined nozzles 33 that can be controlled to open can form a more complex staggered water curtain in the mesh water curtain filtering method, thereby increasing the effective contact surface for the passage of dust and improving the filtering efficiency.

[0054] Among them, the secondary water pipe box 40 includes a plurality of secondary top inclined nozzles 41 arranged at intervals on the top, a strip-shaped secondary main water spray port 42 opened at the bottom, and a plurality of secondary side inclined nozzles 43 arranged at intervals on the front and rear faces. The front and rear inner walls of the secondary water pipe box 40 are axially provided with telescopic grooves 44, and the upper and lower inner walls of the telescopic grooves 44 are provided with side sliding grooves 45 communicating with the plurality of secondary side inclined nozzles 43. A side opening and closing baffle 46 is vertically slidably installed in the side sliding groove 45 by a spring, and a baffle connecting port 47 is provided on the side opening and closing baffle 46. A telescopic block 48 is slidably clamped in the telescopic groove 44, and the upper and lower sides of the telescopic block 48 are in sliding contact with the outer ends of the side opening and closing baffles 46 on both sides, and the contact surfaces are set to be wedge-shaped surfaces that cooperate with each other. When the primary water pipe box 30 is tilted, the primary water pipe box 30 is pulled outward, the end of the primary water pipe box 30 is separated from the telescopic block 48, and the baffle connecting port 47 is connected with the secondary side inclined nozzles 43.

[0055] During operation, the secondary side inclined nozzle 43 of the secondary water pipe box 40 and the primary side inclined nozzle 33 of the primary water pipe box 30 are kept opened and closed synchronously. When the primary water pipe box 30 rotates and tilts, the primary water pipe box 30 is pulled out of the secondary water pipe box 40, the inner end of the primary water pipe box 30 is disengaged from the telescopic block 48, the telescopic block 48 is ejected by the spring, the side opening and closing baffle 46 slides along the side sliding groove 45, the baffle connecting port 47 overlaps and communicates with the secondary side inclined nozzle 43, and the secondary side inclined nozzle 4 3, and the side nozzle movement synchronized with the primary water pipe box 30 is maintained. When the primary water pipe box 30 and the secondary water pipe box 40 are completely in a horizontal state, the inner end of the primary water pipe box 30 is pressed toward the secondary water pipe box 40, and the primary water pipe box 30 presses the telescopic block 48, and the telescopic block 48 pushes the side opening and closing baffle 46 to move, and the baffle connecting port 47 is misaligned with the secondary side oblique nozzle 43, and the secondary side oblique nozzle 43 is closed, and the horizontal closing movement synchronized with the primary water pipe box 30 is maintained.

[0056] The outer circle of the inner end of the primary water pipe box 30 extending into the secondary water pipe box 40 is fixed with a sealing frame, and the sealing frame reserves an overflow channel on the inner wall where the primary water pipe box 30 and the secondary water pipe box 40 overlap;

[0057] During operation, after the primary water pipe box 30 is inserted into the secondary water pipe box 40, the opening of the overlapping portion will be blocked. In order to prevent the overlapping portion from being unable to effectively spray water, a sealing frame is added here to increase the sliding gap between the primary water pipe box 30 and the secondary water pipe box 40. In the overlapping area, the water in the primary water pipe box 30 will overflow into the overflow channel and then be discharged outward through the secondary water pipe box 40, thereby ensuring that the partial area where the primary water pipe box 30 is inserted will not be unable to effectively spray water.

[0058] The bottom of the water spray rack 1 is provided with a wall box 6, the top of the wall box 6 is provided with a storage tank 60 for collecting waste water, a water supply system is provided in the wall box 6, and the storage tank 60 is equipped with a filtering and recycling system;

[0059] During operation, sewage containing dust particles will be collected in the receiving tank 60, and the sewage will obtain clean filtered water through the filtering and recovery system. The filtered water can be used as the water supply of the water supply system, which saves water resources. The water supply system generally includes a water storage tank or an external water pipe, a pressurized water pump, etc., which will not be repeated here. The filtering and recovery system generally includes a filter screen and a slag discharge structure cooperating with the filter screen, which will not be repeated here.

[0060] During the construction process, first determine the interval and number of water spray racks 1 according to the construction area, then install multiple water spray racks 1 on the top of the construction fence, and then install at least one group of modular water pipe assemblies 3 on the two lifting units 2 on the left and right opposite sides of the water spray rack 1 to form a water spray unit. Determine the working state of the water spray unit according to the dust situation at the construction site. When the dust is small, select the staggered strip water curtain form to work, that is, lift and lower multiple water spray units horizontally to different heights for dust reduction. When the dust is large, select the mesh filtering form, that is, adjust the tilt of multiple modular water pipe assemblies 3 for networking. When it is necessary to carry out fixed-point centralized dust reduction in the construction area, remove one end of one or more modular water pipe assemblies 3 from the lifting unit 2, and rotate and adjust them to the construction area for centralized dust reduction. When multiple modular water pipe assemblies 3 are set for fixed-point dust reduction, the cooperation of multiple modular water pipe assemblies 3 forms an upper enclosure for the fixed-point area to form a surrounding dust reduction area for dust reduction.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for building construction, characterized in that: The invention comprises a plurality of water spray racks (1) and a plurality of modular water pipe assemblies (3), wherein a plurality of groups of modular water pipe assemblies (3) are arranged between two horizontally adjacent water spray racks (1), each of the water spray racks (1) is provided with an installation slot (10), a plurality of groups of independently driven lifting units (2) are arranged vertically side by side in the front and back of the installation slot (10), a primary water pipe box (30) is connected to each of the relative lifting units (2), and a secondary water pipe box (30) of appropriate length or number is rotated between the two primary water pipe boxes (30) according to the spacing between the two water spray racks (1). The water pipe box (40) is connected, at least one set of the modular water pipe assemblies (3) is rotatably installed between two horizontally adjacent lifting units (2), each of the modular water pipe assemblies (3) comprises primary water pipes on both sides for rotatably connecting with the corresponding lifting units (2), at least one secondary water pipe is sealed and telescopically connected between the two primary water pipes, the rotatable connection between the lifting units (2) and the primary water pipes comprises at least a horizontal rotatable connection and a vertical rotatable connection, and each of the modular water pipe assemblies (3) is provided with a strip-shaped water spray outlet at the bottom; The lifting unit (2) comprises a screw slot frame (20), a lifting screw (22) is vertically rotatably installed in the screw slot frame (20), a driving motor (21) for driving the lifting screw (22) to rotate is installed on the top of the screw slot frame (20), a screw slider (23) is threadedly sleeved on the lifting screw (22), the screw slider (23) is vertically slidably clamped in the screw slot frame (20), a connecting frame block (24) is fixed on the outer end surface of the screw slider (23), a horizontal rotating frame (25) is horizontally rotatably installed on the connecting frame block (24), and a longitudinal rotating frame (26) for vertically rotatably installing the primary water pipe box (30) is installed in the middle of the horizontal rotating frame (25); The top of the modular water pipe assembly (3) is provided with a top nozzle, and the front and rear side walls of the modular water pipe assembly (3) are provided with side nozzles; The first-level water pipe box (30) comprises a plurality of first-level top inclined nozzles (31) spaced apart at the top, a first-level main water spraying port (32) is axially provided at the bottom of the first-level water pipe box (30), a plurality of first-level side inclined nozzles (33) are axially provided at the front and rear panels of the first-level water pipe box (30), a pressing slide groove (34) communicating with the first-level side inclined nozzles (33) is axially provided in the front and rear panels of the module water pipe assembly (3), an opening is provided in the direction of the horizontal rotating frame (25), a pressing slide plate (35) is slidably inserted in the pressing slide groove (34), a plurality of slide plate connecting ports (37) are axially spaced apart on the pressing slide plate (35), and a pressing spring (36) for pressing the outer end of the pressing slide plate (35) against the panel of the horizontal rotating frame (25) is installed in the pressing slide groove (34); The secondary water pipe box (40) comprises a plurality of secondary top inclined nozzles (41) spaced apart at the top, a strip-shaped secondary main water spray port (42) opened at the bottom, and a plurality of secondary side inclined nozzles (43) spaced apart at the front and rear sides. The front and rear inner walls of the secondary water pipe box (40) are provided with telescopic grooves (44) along the axial direction. The upper and lower inner walls of the telescopic grooves (44) are provided with side sliding grooves (45) communicating with the plurality of secondary side inclined nozzles (43). A side opening and closing baffle (46) is installed in the side sliding groove (45) in a vertically sliding manner through a spring. The side opening The closing baffle (46) is provided with a baffle connecting port (47), and a telescopic block (48) is provided in the telescopic groove (44) by sliding. The upper and lower sides of the telescopic block (48) are in sliding contact with the outer ends of the side opening and closing baffles (46) on both sides, and the contact surfaces are arranged as mutually matching wedge-shaped surfaces. When the primary water pipe box (30) is tilted, the primary water pipe box (30) is pulled outward, the end of the primary water pipe box (30) is separated from the telescopic block (48), and the baffle connecting port (47) is connected with the secondary side inclined nozzle (43).

2. A dust suppression device for building construction according to claim 1, characterized in that: The modular water pipe assembly (3) comprises an external water pipe box (50), and both ends of the external water pipe box (50) are provided with damping ball-head type connecting pipe openings for sealingly connecting with the secondary water pipe box (40) or the primary water pipe box (30).

3. A dust suppression device for building construction according to claim 1, characterized in that: The longitudinal rotating frame (26) cooperates with the primary water pipe box (30) to install a snap-on quick-release structure, the connecting frame block (24) and the longitudinal rotating frame (26) are both installed with fastening bolts for limiting rotation, a water pipe routing groove (28) for water pipe following routing is installed on the vertical outer side wall of one side of each screw slot frame (20), and a water pipe lead-out hole (27) is opened on the horizontal rotating frame (25) for conveniently introducing the water pipe into the water pipe routing groove (28).

4. A dust suppression device for building construction according to claim 1, characterized in that: A sealing frame is fixed to the outer circle of the inner end of the primary water pipe box (30) extending into the secondary water pipe box (40), and the sealing frame reserves an overflow channel on the inner wall where the primary water pipe box (30) and the secondary water pipe box (40) overlap.

5. A dust reduction method for building construction, according to a dust reduction device for building construction according to any one of claims 1 to 4, characterized in that: The specific steps include: Step 1: During the construction process, first determine the interval and number of water spray racks (1) according to the construction area, and then install multiple water spray racks (1) on the top of the construction fence; Step 2: Install at least one set of modular water pipe components (3) on two lifting units (2) on the left and right sides of the water spraying frame (1) to form a water spraying unit; Step 4: Determine the working state of the water spray unit according to the dust situation at the construction site: when the dust is small, select the staggered strip water curtain form to work, that is, multiple water spray units are horizontally lifted to different heights for dust reduction; when the dust is large, select the mesh filtering form, that is, multiple modular water pipe assemblies (3) are tilted and adjusted to perform networking action; when it is necessary to carry out fixed-point centralized dust reduction in the construction area, one end of one or more modular water pipe assemblies (3) is removed from the lifting unit (2), and rotated and adjusted to the construction area for centralized dust reduction; when multiple modular water pipe assemblies (3) are set for fixed-point dust reduction, the upper enclosure of the fixed-point area is formed by the cooperation of the multiple modular water pipe assemblies (3), forming a surrounding dust reduction area for dust reduction; Step 4: After dust reduction is completed, the angles and heights of the plurality of module water pipe assemblies (3) are adjusted to perform self-cleaning on the module water pipe assemblies (3); Step 5: After cleaning is completed, the plurality of module water pipe assemblies (3) are adjusted to a horizontal position and then lowered to the lowest position to complete the overall dust reduction process.

Images