A lifting device and lifting method for airspace mist curtain spray components

Abstract

The present invention discloses a lifting device for an airspace mist curtain spray component, comprising: a lifting component and a spray component, the lifting component comprising: a pulley block, a steel wire rope, and an automatic wire-retracting assembly, the pulley block is fixedly arranged above the automatic wire-retracting assembly, the pulley block comprises a first pulley and a second pulley, the steel wire rope is wound around the first pulley and the second pulley in sequence, and the two ends of the steel wire rope extend downward respectively, the number of the automatic wire-retracting assembly is two sets and the two sets of the automatic wire-retracting assembly are respectively connected to the two ends of the steel wire rope; the spray component is arranged on the steel wire rope and is located between the first pulley and the second pulley. The present invention also discloses a lifting method for an airspace mist curtain spray component, the lifting device and method for the airspace mist curtain spray component are intended to solve the technical problem that the structure of manually operating the retractable winch to realize the lifting of the spray component in the prior art has high labor intensity and low work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of dust treatment, and in particular relates to a lifting device and a lifting method for an airspace fog curtain spray component. Background Art

[0002] At present, the powdered raw material yards of steel coking plants, coal-fired power plants, cement plants and other enterprises have adopted environmental protection shed measures. In order to suppress dust, prevent explosions and reduce temperature, the top of the material shed (yard) is often equipped with mist curtain spray components. Due to the large span and high height of the material shed (yard), the construction difficulty when installing the mist curtain spray components is also very large, and the maintenance difficulty is also great. Due to the water quality problems of industrial water and the long-term exposure of the mist curtain spray components to the dust environment, dust is very easy to adhere to the spray components, resulting in frequent clogging of the spray nozzles, further increasing the difficulty of manual maintenance.

[0003] In addition to installing fog curtain spray components on the lighting of the material shed (material yard), there are also cases where fog curtains are installed above the construction airspace to suppress dust during construction sites and land leveling. This application, like installing fog curtain spray components on the top of the material shed, has the problems of difficult installation and construction and difficult manual maintenance.

[0004] That is, the installation and maintenance of mist curtain spray components above large material sheds and construction airspaces require high-altitude operations, which not only makes the installation and construction difficult and the labor intensity high, but also takes a long time to maintain single-point operations, delaying production and thus reducing economic benefits.

[0005] In order to solve the above technical problems, the lifting device of the airspace mist curtain spray component in the prior art includes a steel wire rope and a pulley to realize the lifting of the airspace mist curtain spray component. The disadvantage of the related technology is that it needs to use a manually operated retractable winch to realize the lifting of the spray component. The labor intensity of the operator is high and the work efficiency is low. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] Based on this, the present invention proposes a lifting device and a lifting method for an airspace mist curtain spray component. The lifting device and the lifting method for the airspace mist curtain spray component are intended to solve the technical problems in the prior art of using a manually operated retractable winch to achieve the lifting of the spray component, which has high labor intensity and low work efficiency.

[0008] (II) Technical solution

[0009] In order to solve the above technical problems, the present invention proposes a lifting device for an airspace fog curtain spray component, comprising: a lifting component and a spray component, the lifting component comprising: a pulley block, a wire rope, and an automatic wire-retracting assembly, the pulley block is fixedly arranged above the automatic wire-retracting assembly, the pulley block comprises a first pulley and a second pulley, the wire rope is wound around the first pulley and the second pulley in sequence, and the two ends of the wire rope extend downward respectively, the number of the automatic wire-retracting assemblies is two sets and the two sets of the automatic wire-retracting assemblies are respectively connected to the two ends of the wire rope; the spray component is arranged on the wire rope and is located between the first pulley and the second pulley.

[0010] Preferably, the automatic wire taking-up assembly comprises: a power unit, a transmission unit and a wire take-up, the belt transmission unit comprises a driving wheel, a driven wheel and a transmission belt respectively sleeved on the driving wheel and the driven wheel, the wire take-up comprises a reel and a wire taking-up frame, the reel is arranged on the wire taking-up frame and the reel is rotatably connected to the wire taking-up frame; the power unit is connected to the driving wheel, and the power unit is used to drive the driving wheel to rotate; the driven wheel is connected to the reel, and the driven wheel is used to drive the reel to rotate; the wire rope is wound around the reel.

[0011] Preferably, the automatic wire taking-up assembly also includes: a base, a power mounting plate, and a wire taking-up mounting plate, the wire taking-up frame is fixed to the wire taking-up mounting plate, the driven wheel is arranged on the wire taking-up frame, the driving wheel is arranged on the power mounting plate, the power mounting plate is slidably connected to the base, and the base is provided with a frame slot running therethrough, and the automatic wire taking-up assembly also includes a tensioning mechanism, and the tensioning mechanism includes: a push rod and two sets of control parts respectively connected to two ends of the push rod, the push rod passes through the frame slot, and under the pulling force of the transmission belt, the push rod abuts against one side of the power mounting plate, a tensioning support plate is respectively provided on both sides of the base, and the two tensioning support plates are respectively arranged below the two sets of the control parts, the control part includes a locking piece and a connecting rod, one end of the connecting rod is connected to the push rod, and the other end of the connecting rod is hingedly connected to the locking piece.

[0012] Preferably, the control part further includes a handle, and the handle is fixed to the locking member.

[0013] Preferably, the locking member includes a first connecting hole and a second connecting hole extending therethrough, and the first connecting hole and the second connecting hole are spaced apart; the connecting rod is hingedly connected to the first connecting hole or the second connecting hole to realize a hinged connection between the connecting rod and the locking member.

[0014] Preferably, the power unit and the transmission unit are respectively fixed to the power mounting plate, and the driving wheel is connected to the power mounting plate via the power unit.

[0015] Preferably, the automatic wire taking-up assembly further includes an anti-reversal unit, which includes a ratchet and a pawl cooperating with the ratchet to prevent the ratchet from reversing, the anti-reversal unit is arranged on the wire taking-up frame, and the ratchet is fixedly connected to the reel.

[0016] Preferably, the power unit includes: a motor, a reducer connected to the motor, and a control box for controlling the motor.

[0017] Preferably, the connecting rod and the push rod are fixedly connected or hingedly connected.

[0018] Preferably, the lifting device of the airspace mist curtain spray component further includes a first vertical pole and a second vertical pole which are spaced apart from each other, the first pulley is fixed to the top of the first vertical pole, and the second pulley is fixed to the top of the second vertical pole.

[0019] Preferably, the pulley block further comprises a plurality of first guide pulleys, wherein: some of the first guide pulleys are arranged between the first pulley and a set of the automatic wire-winding assembly, and the remaining first guide pulleys are arranged between the second pulley and another set of the automatic wire-winding assembly, and the wire rope is connected to the automatic wire-winding assembly after passing through the first guide pulleys.

[0020] Preferably, the pulley group also includes a second guide pulley, and the wire rope is sequentially wound around the first pulley, the second pulley, and then wound around the second guide pulley. Both sets of the automatic wire taking-up assemblies are located on the side of the first pulley away from the second pulley, and the second guide pulley is arranged between the automatic wire taking-up assembly and the first pulley.

[0021] The present invention also provides a method for lifting an airspace mist curtain spray component, which is implemented by the lifting device of the airspace mist curtain spray component as described above; the two sets of the automatic wire-winding assemblies simultaneously release the wires, so that the steel wire rope carries the spray component and slides to the ground between the first pulley and the second pulley; the two sets of the automatic wire-winding assemblies simultaneously rewind the wires, so that the steel wire rope carries the spray component and rises to the air between the first pulley and the second pulley.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the beneficial effects of the lifting device and lifting method of the airspace mist curtain spray component of the present invention mainly include:

[0024] (1) The lifting device of the airspace mist curtain spray component of the present invention can avoid high-altitude operations during maintenance and repair of the spray component, which is safe.

[0025] (2) By using the lifting device of the airspace mist curtain spray component of the present invention, the automatic lifting of the spray component can be realized, which greatly reduces the labor intensity during installation and maintenance.

[0026] (3) The lifting device of the airspace mist curtain spray component of the present invention can realize multi-point operation, shorten the construction time, and have high production efficiency and low maintenance cost.

[0027] (4) The lifting device of the airspace mist curtain spray component of the present invention adopts a movable power unit, which is convenient and maneuverable and greatly reduces the cost.

[0028] (5) The height of the spray component in the lifting device of the airspace mist curtain spray component of the present invention is adjustable, and accurate dust suppression can be achieved according to the on-site conditions.

[0029] (6) The present invention provides a method for lifting an airspace mist curtain spray component, which utilizes two sets of the automatic wire-reeling assemblies to simultaneously reel in and release the wires, thereby improving the stability of the lifting of the spray component and facilitating the spray component to be completely lowered to the ground or raised to a position between the first pulley and the second pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of a lifting device of an airspace mist curtain spray component of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the wire take-up device in the present invention;

[0033] Figure 3 It is a structural schematic diagram of the power unit in the present invention;

[0034] Figure 4 It is a schematic diagram of the assembly of the power unit and the wire take-up device in the present invention;

[0035] Figure 5 A schematic diagram of applying the present invention to the top of a dome;

[0036] Figure 6 A schematic diagram of applying the present invention to the side of a dome;

[0037] Figure 7 A schematic diagram of applying the present invention to a construction site;

[0038] Figure 8 It is a schematic diagram of the structure in which the power unit of the present invention is removed from the base.

[0039] Description of reference numerals:

[0040] 1. Lifting component, 2. Spray component, 3. First vertical pole, 4. Second vertical pole;

[0041] 11. Pulley block, 12. Steel wire rope, 13. Automatic wire take-up assembly;

[0042] 111. first pulley, 112. second pulley, 113. first guide pulley, 114. second guide pulley;

[0043] 131. power unit, 132. transmission unit, 133. anti-reversal unit, 134. wire take-up device, 135 base, 136. power mounting plate, 137. wire take-up mounting plate, 138. tensioning mechanism, 139. tensioning support plate, 140. universal wheel, 141 handle;

[0044] 1311. Motor, 1312. Reducer, 1313. Control box;

[0045] 1321. driving wheel, 1322. driven wheel, 1323. transmission belt;

[0046] 1331. ratchet, 1332. pawl;

[0047] 1341. reel, 1342. take-up rack;

[0048] 1351. Rack slot;

[0049] 1381. Push rod, 1382. Control unit;

[0050] 13821. Locking piece, 13822. Connecting rod, 13823. Handle;

[0051] 138211. Rotating surface, 138212. Locking surface, 138213. First connecting hole, 138214. Second connecting hole. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Reference Figure 1-7 A lifting device for an airspace mist curtain spray component comprises: a lifting component 1 and a spray component 2, the lifting component 1 comprises: a pulley block 11, a wire rope 12, and an automatic wire-retracting assembly 13, the pulley block 11 is fixedly arranged above the automatic wire-retracting assembly 13, the pulley block 11 comprises a first pulley 111 and a second pulley 112, the wire rope 12 is sequentially wound around the first pulley 111 and the second pulley 112, and both ends of the wire rope 12 extend downward respectively, the number of the automatic wire-retracting assembly 13 is two sets and the two sets of automatic wire-retracting assemblies 13 are respectively connected to the two ends of the wire rope 12; the spray component 2 is arranged on the wire rope 12 and is located between the first pulley 111 and the second pulley 112.

[0055] In the present embodiment, by providing two sets of automatic winding assemblies 13, both ends of the steel wire rope 12 can be wound and released, which is used to lower the spray component 2 located on the steel wire rope 12 to the ground, or to lift the spray component 2 located on the steel wire rope 12 so that the spray component 2 is fixed between the first pulley 111 and the second pulley 112, which is convenient for installation and maintenance.

[0056] According to a specific embodiment of the present invention, the automatic wire take-up assembly 13 includes: a power unit 131, a transmission unit 132 and a wire take-up device 134, the transmission unit 132 includes a driving wheel 1321, a driven wheel 1322 and a transmission belt 1323 respectively mounted on the driving wheel 1321 and the driven wheel 1322, the wire take-up device 134 includes a reel 1341 and a wire take-up frame 1342, the reel 1341 is arranged on the wire take-up frame 1342 and the reel 1341 is rotatably connected to the wire take-up frame 1342; the power unit 131 is connected to the driving wheel 1321, and the power unit 131 is used to drive the driving wheel 1321 to rotate; the driven wheel 1322 is connected to the reel 1341, and the driven wheel 1322 is used to drive the reel 1341 to rotate; the wire rope 12 is wound around the reel 1341. The automatic wire take-up assembly 13 also includes: a base 135, a power mounting plate 136, a wire take-up mounting plate 137, a wire take-up frame 1342 is fixed to the wire take-up mounting plate 137, a driven wheel 1322 is arranged on the wire take-up frame 1342, a driving wheel 1321 is arranged on the power mounting plate 136, the power mounting plate 136 is slidably connected to the base 135, and a frame groove 1351 is provided on the base 135 that runs through it. The automatic wire take-up assembly 13 also includes a tensioning mechanism 138, and the tensioning mechanism 138 includes: a push rod 1381 and two ends of the push rod 1381 are respectively connected Two sets of control parts 1382, the push rod 1381 passes through the frame slot 1351, and under the pulling force of the transmission belt 1323, the push rod 1381 abuts against one side of the power mounting plate 136, and a tensioning support plate 139 is respectively provided on both sides of the base 135. The two tensioning support plates 139 are respectively arranged under the two sets of control parts 1382. The control part 1382 includes a locking piece 13821 and a connecting rod 13822. One end of the connecting rod 13822 is connected to the push rod 1381, and the other end of the connecting rod 13822 is hingedly connected to the locking piece 13821.

[0057] The transmission unit 132 is a belt transmission structure composed of a driving pulley, a driven pulley and a transmission belt 1323. Of course, it can be a chain transmission structure composed of a driving sprocket, a driven sprocket and a transmission chain. In this embodiment, the transmission unit 132 is a belt transmission structure. When the transmission unit 132 needs to be tensioned, the locking member 13821 in the one side control part 1382 is operated to make the two locking members 13821 rotate in the same direction at a certain angle at the same time. When the two locking members 13821 rotate, the connecting rod 13822 is driven to push the push rod 1381 to slide in the frame groove 1351. When the push rod 1381 moves, it pushes the power mounting plate 136 to move, so that the driving wheel 1321 located on the power mounting plate 136 is away from the driving wheel 1321, thereby realizing the tensioning of the transmission unit 132. During operation, it is necessary to pay attention to the rotation direction of the locking member 13821 to ensure that the driving wheel 1321 is finally away from the driving wheel 1321. According to a specific embodiment of the present invention, the control part 1382 further includes a handle 13823, and the handle 13823 is fixed to the locking member 13821. The locking member 13821 is rotated by rotating the handle 13823, and the operation is performed manually, thereby improving the convenience of operation.

[0058] According to a specific embodiment of the present invention, the locking member 13821 includes a first connecting hole 138213 and a second connecting hole 138214 running through it, and the first connecting hole 138213 and the second connecting hole 138214 are arranged at intervals; the connecting rod 13822 is hingedly connected to the first connecting hole 138213 or the second connecting hole 138214 to achieve a hinged connection between the connecting rod 13822 and the locking member 13821. In this embodiment, when the locking member 13821 is in a locked state, the locking surface 138212 is in contact with the upper surface of the tension support plate 139. At this time, the hinged position of the connecting rod 13822 and the locking member 13821 is the position of the first connecting hole 138213 or the second connecting hole 138214. By changing the hinged position of the connecting rod 13822 and the locking member 13821, the adjustment of the tension level can be achieved. In specific implementation, when the tension distance to be adjusted is small, the connecting rod 13822 can be hinged to the position of the first connecting hole 138213. When the tension distance to be adjusted is large, the connecting rod 13822 can be hinged to the position of the second connecting hole 138214, thereby achieving the adjustment of the tension level. It is feasible that the connecting rod 13822 and the push rod 1381 are fixedly connected or hingedly connected.

[0059] According to a specific embodiment of the present invention, the power unit 131 and the transmission unit 132 are respectively fixed to the power mounting plate 136, and the driving wheel 1321 is connected to the power mounting plate 136 via the power unit 131. More specifically, a universal wheel 140 is provided below the power mounting plate 136, and a handle 141 is provided on one side of the power mounting plate 136. In this embodiment, after the spray component 2 is installed, the transmission belt 1323 can be loosened, the handle 141 is pulled, and the power unit 131 is dragged out, that is, the power unit 131 is a flexibly detachable structure. When maintenance is required, the power unit 131 is dragged out, the transmission belt 1323 is put on, and the rotational power can be transmitted to the driven wheel 1322. Since there are generally several groups of steel wire ropes 12 in a material shed, and the maintenance frequency is not high, it is not necessary to set a power unit 131 for each group of steel wire ropes 12. In this solution, the power unit 131 is in a flexibly detachable form, which can greatly save costs.

[0060] According to a specific embodiment of the present invention, the automatic take-up assembly 13 further includes an anti-reversal unit 133, which includes a ratchet 1331 and a pawl 1332 that cooperates with the ratchet 1331 to prevent the ratchet 1331 from reversing. The anti-reversal unit 133 is arranged on the take-up frame 1342, and the ratchet 1331 is fixedly connected to the reel 1341. In specific implementation, when the spray component 2 needs to be lifted, the active wheel 1321 rotates to drive the reel 1341 to rotate and rewind, and the ratchet 1331 rotates with the reel 1341. When the steel wire rope 12 drives the spray component 2 to reach the specified position, the active wheel 1321 stops rotating, and the spray component 2 falls down under the action of gravity, driving the reel 1341 to rotate in the opposite direction to release the line, but under the action of the pawl 1332, the ratchet 1331 can be prevented from reversing, thereby preventing the spray component 2 from continuing to fall down, so that the spray component 2 is fixed at a set height. When the spray component 2 needs to be repaired, the pawl 1332 is pulled out and is no longer stuck in the gear teeth of the ratchet wheel 1331. At this time, the reel 1341 can rotate freely to realize the line release operation, and finally the spray component 2 falls to the ground, which is convenient for subsequent maintenance. More specifically, the driven wheel 1322 is arranged on one side of the take-up frame 1342, and the anti-reversal unit 133 is arranged on the other side of the take-up frame 1342. This structure is conducive to the reasonable arrangement of parts, and the anti-reversal unit 133 is arranged separately from the driving wheel 1321, which is conducive to improving safety.

[0061] According to a specific embodiment of the present invention, the power unit 131 includes a motor 1311, a reducer 1312 connected to the motor 1311, and a control box 1313 for controlling the motor 1311. The control box 1313 facilitates centralized control.

[0062] It should be noted that: according to different application sites, the pulley, the wire rope 12, and the wire take-up device 134 can be combined into various forms to meet the requirements of different sites. The details are as follows:

[0063] (1) According to a specific embodiment of the present invention, the lifting device of the airspace mist curtain spray component further includes a first vertical pole 3 and a second vertical pole 4 arranged at intervals, a first pulley 111 is fixed to the top of the first vertical pole 3, and a second pulley 112 is fixed to the top of the second vertical pole 4. In this embodiment, the first pulley 111 and the second pulley 112 are respectively fixed to the first vertical pole 3 and the second vertical pole 4, and the wire rope 12 is erected between the first vertical pole 3 and the second vertical pole 4. The spray component 2 is installed on the wire rope 12 and is located in the middle of the airspace between the first vertical pole 3 and the second vertical pole 4, so as to realize spray dust reduction during construction of a construction site or land leveling.

[0064] (2) According to a specific embodiment of the present invention, the pulley block 11 further includes a plurality of first guide pulleys 113, wherein: some of the first guide pulleys 113 are arranged between the first pulley 111 and a set of automatic wire-receiving assemblies 13, and the remaining first guide pulleys 113 are arranged between the second pulley 112 and another set of automatic wire-receiving assemblies 13, and the steel wire rope 12 is connected to the automatic wire-receiving assemblies 13 after passing through the first guide pulleys 113. When it is necessary to install the spray component 2 on the top of the dome, the first guide pulleys 113 in this embodiment are used to make the steel wire rope 12 follow the shape of the dome, thereby improving the compactness of the structure.

[0065] (3) According to a specific embodiment of the present invention, the pulley block 11 further includes a second guide pulley 114. The steel wire rope 12 is wound around the first pulley 111 and the second pulley 112 in sequence and then is wound around the second guide pulley 114. Both sets of automatic wire-reeling assemblies 13 are located on the side of the first pulley 111 away from the second pulley 112. The second guide pulley 114 is disposed between the automatic wire-reeling assembly 13 and the first pulley 111. In this embodiment, the direction of the steel wire rope 12 is changed by the second pulley 112. The second guide pulley 114 is used to guide the steel wire rope 12. This structure is suitable for installing the spray component 2 on one side of the dome. In order to make the steel wire rope 12 shorter, the steel wire rope 12 is wound around 180° at the second pulley 112 near the height, and is connected to the automatic wire-reeling assembly 13 on the same side after passing around the second guide pulley 114.

[0066] It should be noted that the locking member 13821 can be a semicircular plate similar to that shown in the drawings of the present invention, or can be a simple connecting rod shape, and its shape needs to ensure that the handle 13823 of the operating part 1382 can allow the connecting rod 13822 to rotate.

[0067] It should also be noted that, depending on the application site, the pulley, the wire rope 12, and the wire take-up device 134 can be combined into various forms, but no matter which form is formed, the method of achieving the lifting and lowering of the spray component 2 is the same.

[0068] The present invention also provides a method for lifting an airspace mist curtain spray component, which is achieved by the lifting device of the airspace mist curtain spray component as described above; two sets of automatic wire-winding assemblies 13 are simultaneously released, so that the wire rope 13 carrying the spray component 2 slides to the ground between the first pulley 111 and the second pulley 112; and two sets of the automatic wire-winding assemblies 2 are simultaneously reeled in, so that the wire rope 13 carrying the spray component 2 rises to the air between the first pulley 111 and the second pulley 112.

[0069] Taking an application scenario as an example, the installation and use process of a lifting device for an airspace mist curtain spray component of the present invention is specifically described below.

[0070] 1. The installation steps of the spray component 2 can be divided into the following five steps:

[0071] (1) Pulleys are installed on both sides of the top of the material shed in the span direction, including a first pulley 111 and a second pulley 112, and a set of wire take-ups 134 are installed on both sides of the bottom; all the above parts are integrally configured as a set of basic mounting parts, and several sets of basic mounting parts are installed along the longitudinal direction.

[0072] (2) Use a plurality of steel wire ropes 12 to connect the take-up device 134 at one end of the bottom of each set of foundation mounting parts and pass them around the first pulley 111 and the second pulley 112 in sequence, and then connect them to the take-up device 134 at the other end of the bottom to keep the steel wire rope 12 in a relaxed state, even if part of the steel wire rope between the first pulley 111 and the second pulley 112 hangs at the bottom of the material shed.

[0073] (3) The spray component 2 is assembled on the steel wire rope hanging at the bottom of the material shed through a connecting piece. There can be multiple spray components 2. When there are multiple spray components 2, adjacent spray components 2 are arranged at intervals.

[0074] (4) The power units 131 on both sides are respectively connected to the same group of wire take-ups 134 through the transmission belts 1323, and the power units 131 at both ends are started simultaneously. The wire take-ups 134 slowly pull up the steel wire rope 12 until the steel wire rope 12 together with the spray component 2 rise to a position close to the top of the material shed, and then the power unit 131 is stopped.

[0075] (5) Disassemble and install one set of power unit 131 and transmission belt 1323 onto another set of wire take-up device 134 respectively, and raise another set of spray components 2 according to the requirements of step (4) above, until all spray components 2 are raised to a position close to the top of the material shed, and the installation is completed.

[0076] 2. The following is a detailed description of the maintenance steps of the spray component 2, which can be divided into three steps:

[0077] (a) After determining the spray component 2 that needs to be repaired, slowly lower the wire rope 12 through the wire take-up devices 134 at both ends, so that the spray component 2 that needs to be repaired falls from the top of the material shed to the bottom of the material shed.

[0078] (b) Inspect spray component 2.

[0079] (c) According to the method of the above-mentioned installation step (4) of the spray component 2, the spray component 2 is raised to a specified height, and the inspection is completed.

[0080] The following is an explanation of the relevant technical terms involved in the present invention.

[0081] Material shed (material yard): steel structure sheds for port terminals, thermal power generation, coal mines, coking, steel, coal washing, cement coal yards and material yards are large-span grid structure products among steel structure types. The steel structure grid is a spatial structure formed by connecting multiple rods through nodes in a certain grid form. It has the advantages of small spatial force, light weight, high rigidity and good seismic performance. It generally includes strips and circles, and the top is mostly flat and dome. The general span is 50-150m, the length is 100-500m, and the height is 10-36m.

[0082] Dust suppression: The spray dust suppression device can use a sprayer to generate water mist below 10μm. Under the effects of gravity sedimentation, inertial collision, interception capture, electrostatic capture, Brownian diffusion, condensation and other effects, the dust particles adhere to each other, agglomerate and grow, and settle under the action of their own gravity, thereby achieving the effect of dust suppression.

[0083] Explosion-proof: In a confined space, when the amount of dust is large and the air circulation is small, it is very easy to cause flammability and explosion. The water mist sprayed by the spray device increases the humidity in the confined space, greatly prevents the generation of static electricity, and greatly improves the safety of the space.

[0084] Compared with the related art, the lifting device of the airspace mist curtain spray component of the present invention can avoid high-altitude operations during maintenance and repair of the spray component, which is safer; it can realize automatic lifting of the spray component, greatly reducing the labor intensity during installation and maintenance; it can also realize multi-point operation, shorten the construction time, and have high production efficiency. The maintenance cost is low. The height of the spray component in the lifting device of the airspace mist curtain spray component is adjustable, which can achieve precise dust suppression according to the on-site conditions.

[0085] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A lifting device for an airspace mist curtain spray component, characterized in that: include: A lifting component and a spray component, wherein the lifting component comprises: a pulley block, a steel wire rope, and an automatic wire-retracting assembly, wherein the pulley block is fixedly arranged above the automatic wire-retracting assembly, the pulley block comprises a first pulley and a second pulley, the steel wire rope is wound around the first pulley and the second pulley in sequence, and both ends of the steel wire rope extend downward respectively, and the number of the automatic wire-retracting assemblies is two sets, and the two sets of the automatic wire-retracting assemblies are respectively connected to the two ends of the steel wire rope; the spray component is arranged on the steel wire rope and is located between the first pulley and the second pulley; The automatic wire take-up assembly comprises: a power unit, a transmission unit and a wire take-up device, wherein the transmission unit comprises a driving wheel, a driven wheel and a transmission belt respectively sleeved on the driving wheel and the driven wheel, and the wire take-up device comprises a reel and a wire take-up frame, wherein the reel is arranged on the wire take-up frame and the reel is rotatably connected with the wire take-up frame; the power unit is connected with the driving wheel, and the power unit is used to drive the driving wheel to rotate; the driven wheel is connected with the reel, and the driven wheel is used to drive the reel to rotate; the wire rope is wound on the reel; The automatic wire-taking assembly also includes: a base, a power mounting plate, and a wire-taking mounting plate, the wire-taking frame is fixed to the wire-taking mounting plate, the driven wheel is arranged on the wire-taking frame, the driving wheel is arranged on the power mounting plate, the power mounting plate is slidably connected to the base, and the base is provided with a frame slot penetrating thereon, and the automatic wire-taking assembly also includes a tensioning mechanism, the tensioning mechanism includes: a push rod and two sets of control parts respectively connected to two ends of the push rod, the push rod penetrates the frame slot, and under the pulling force of the transmission belt, the push rod abuts against one side of the power mounting plate, a tensioning support plate is respectively provided on two sides of the base, and the two tensioning support plates are respectively arranged under the two sets of the control parts, the control part includes a locking member and a connecting rod, one end of the connecting rod is connected to the push rod, and the other end of the connecting rod is hingedly connected to the locking member; The automatic wire take-up assembly further includes an anti-reversal unit, which includes a ratchet and a pawl cooperating with the ratchet to prevent the ratchet from reversing. The anti-reversal unit is arranged on the wire take-up frame, and the ratchet is fixedly connected to the reel.

2. The lifting device of the airspace mist curtain spray component according to claim 1 is characterized in that: The locking member includes a first connecting hole and a second connecting hole penetrating therethrough, and the first connecting hole and the second connecting hole are arranged at intervals; the connecting rod is hingedly connected to the first connecting hole or the second connecting hole to achieve hinged connection between the connecting rod and the locking member.

3. The lifting device of the airspace mist curtain spray component according to claim 1 is characterized in that: The power unit includes: a motor, a reducer connected to the motor, and a control box for controlling the motor.

4. The lifting device of the airspace mist curtain spray component according to claim 1 is characterized in that: The lifting device of the airspace mist curtain spray component also includes a first vertical pole and a second vertical pole arranged at an interval, the first pulley is fixed to the top of the first vertical pole, and the second pulley is fixed to the top of the second vertical pole.

5. The lifting device of the airspace mist curtain spray component according to claim 1 is characterized in that: The pulley block also includes a plurality of first guide pulleys, wherein: some of the first guide pulleys are arranged between the first pulley and a set of the automatic wire-taking assembly, and the remaining first guide pulleys are arranged between the second pulley and another set of the automatic wire-taking assembly, and the wire rope is connected to the automatic wire-taking assembly after passing through the first guide pulleys.

6. The lifting device of the airspace mist curtain spray component according to claim 1 is characterized in that: The pulley block also includes a second guide pulley. The steel wire rope is sequentially wound around the first pulley, the second pulley, and then the second guide pulley. Both sets of the automatic wire-winding assemblies are located on the side of the first pulley away from the second pulley. The second guide pulley is arranged between the automatic wire-winding assembly and the first pulley.

7. A method for lifting an airspace mist curtain spray component, characterized in that: The method for lifting the airspace mist curtain spray component is achieved by the lifting device of the airspace mist curtain spray component as described in any one of claims 1 to 6; the two sets of the automatic wire-winding assemblies are simultaneously released, so that the steel wire rope carrying the spray component slides to the ground between the first pulley and the second pulley; the two sets of the automatic wire-winding assemblies are simultaneously reeled in, so that the steel wire rope carrying the spray component rises to the air between the first pulley and the second pulley.

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