Dust falling machine for building demolition construction

Abstract

The invention relates to the technical field of dust falling machines, and discloses a building demolition construction dust falling machine which comprises a water storage tank, a rotary driving mechanism and two symmetrical electric slip rings are arranged at the top of the water storage tank, the rotor ends of the electric slip rings are connected with a connecting rod, and the rotary driving mechanism is in transmission connection with the connecting rod; the lower end of the connecting rod extends into the water storage tank and is fixedly connected with a heating elbow, a controller is arranged on the water storage tank and electrically connected with the rotary driving mechanism and the stator end of the electric slip ring, and the rotor end of the electric slip ring is electrically connected with the heating elbow. The heating bent pipe is of a double-heat-pipe and U-shaped bent pipe parallel loop structure and is matched with rotation driving to achieve all-directional uniform heating, and the controller and the temperature sensor form a closed-loop temperature control system to ensure that the water temperature is higher than the freezing point. The device can prevent water mist from freezing, rebounding and raising dust, prevents nozzle blockage and pipeline frost crack, improves the continuous operation reliability of equipment, and is suitable for building demolition construction raising dust treatment in cold regions.

Description

Technical Field

[0001] This invention relates to the field of dust suppression machine technology, specifically a dust suppression machine for building demolition construction. Background Technology

[0002] During building demolition, crushing and cutting operations easily generate large amounts of dust, severely polluting the air and endangering the health of workers and the surrounding environment. Therefore, dust suppression systems are needed to control dust during construction, with fog cannons being the most commonly used. These systems use high-pressure pumps to atomize water into fine mists only a few micrometers in diameter, covering the work surface like an "aerial sprinkler net." This quickly absorbs dust particles, causing them to settle and effectively reducing dust concentration. Compared to traditional water spraying, fog cannons are more water-efficient, have a wider coverage area, and can adjust the spray angle to adapt to different demolition heights.

[0003] Patent CN120532228B discloses a dust suppression machine for building demolition, comprising a water storage base with a water pump inside, a water pipe connected to one end of a dust suppression cylinder, and a motor installed inside the other end of the dust suppression cylinder; it also includes a first ring pipe fixed to the inner wall of the dust suppression cylinder near the water pipe, the first ring pipe being interconnected with the water pipe; a support frame fixed to the upper surface of the water storage base, with the dust suppression cylinder rotatably mounted on the inner side of the support frame, and an expansion mechanism located in the middle of the dust suppression cylinder. This device increases the spraying range by adding nozzles to the outside of the dust suppression cylinder. Compared to traditional methods of changing the spray angle and adjusting the horizontal position, it can further expand the spraying range, adjust the spraying distance, and recover liquid dripping near the dust suppression machine, reducing water waste.

[0004] However, the above-mentioned device still has the following problems: When the above-mentioned device is used in winter, the fine water mist sprayed at low temperatures will quickly condense into ice particles. Not only will it fail to adsorb dust, but it may also cause dust to bounce back due to the ice particles, aggravating pollution. The actual dust reduction efficiency will drop significantly, which will waste water resources and affect the environmental protection effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dust suppression machine for building demolition, which enables stable dust suppression even in low-temperature environments.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dust suppression machine for building demolition, comprising a water storage tank, a rotary drive mechanism mounted on the top of the water storage tank, two electric slip rings symmetrically mounted on the top of the water storage tank about the rotary drive mechanism, the stator end of the electric slip rings being fixedly connected to the water storage tank, and the rotor end of the electric slip rings being connected to a connecting rod, the rotary drive mechanism being drivenly connected to the connecting rods on both sides; the connecting rods being rotatably connected to the top of the water storage tank, the lower end of the connecting rods being located inside the water storage tank and fixedly connected to a heating bend; a controller is also provided on the water storage tank, the controller being electrically connected to the rotary drive mechanism, the controller being electrically connected to the stator end of the electric slip rings, and the rotor end of the electric slip rings being electrically connected to the heating bend.

[0007] Furthermore, a driven wheel is sleeved on the connecting rod, a rotating sleeve is fixedly connected to the top surface of the water storage tank, and the rotary drive mechanism includes a drive motor. A rotating shaft is connected to the output shaft of the drive motor. The rotating shaft is rotatably connected to the rotating sleeve. Two driving wheels distributed vertically are fixedly sleeved on the outer wall of the rotating shaft. The two driving wheels are respectively connected to the driven wheels on both sides through synchronous belt transmission.

[0008] Furthermore, a connecting block is fixedly connected to the lower end of the connecting rod, and two vertically distributed heating bends are fixedly connected to the bottom of the connecting block. Each heating bend consists of two symmetrically arranged heat pipes. The heat pipes are parallel loop structures formed by connecting the ends of multiple sets of left-right symmetrical U-shaped bends. The bottom ends of the two heat pipes in the same heating bend are connected.

[0009] Furthermore, a support plate is provided on the heating bend, and the surface of the support plate has several arc-shaped snap-fit ​​holes that are adapted to the outer wall of the heating bend. The heating bend is snapped into the snap-fit ​​holes to fix the position of the heating bend.

[0010] Furthermore, a fixing rod is vertically fixed to the bottom surface of the connecting block, and multiple support rods are fixedly connected between the fixing rod and the support plate.

[0011] Furthermore, a fixing block is fixedly connected to the bottom end of the fixing rod, and two fixing holes are opened on the outer wall of the fixing block for fixing the bottom end of the heating bend.

[0012] Furthermore, the connecting rod is located on the outer wall between the top surface of the water tank and the driven wheel, and an annular anti-detachment plate is fixedly fitted thereon; the bottom surface of the anti-detachment plate is in contact with the top surface of the water tank, and the outer diameter of the anti-detachment plate is larger than the diameter of the through hole between the connecting rod and the water tank.

[0013] Furthermore, a protective cover is fixedly connected to the top surface of the water storage tank, and the driven wheel, driving wheel and synchronous belt are all located inside the protective cover; a maintenance cover is detachably connected to one side of the protective cover, and the cover is fixed to the protective cover by buckles or bolts.

[0014] Furthermore, the rotatable connection between the connecting rod and the top of the water tank is achieved through a rotary seal; the rotary seal is either a skeleton oil seal or a mechanical seal.

[0015] Furthermore, it also includes a temperature sensor, the probe of which extends into the inner cavity of the water tank. The temperature sensor is electrically connected to the controller, which has a built-in power unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By working together with the heating bend and the closed-loop temperature control system, the water in the storage tank can be heated to a suitable temperature and maintained stably above the freezing point. Even in extremely cold environments, it can ensure that the water mist remains liquid before it completes dust adsorption. This avoids the problem of rebound dust caused by the condensation of fine water mist into ice particles, and ensures the adsorption and settling efficiency of water mist on dust. It completely solves the core pain point of existing technologies failing to reduce dust in cold regions.

[0017] 2. The hot and cold water mist design avoids the risk of ice particles clogging the nozzles and freezing and cracking the pipes from the source. Combined with the anti-leakage protection of the rotating seal and the uniform heating function of the heating bend, it effectively prevents the residual water in the pipes from freezing, greatly reduces the frequency of equipment downtime for maintenance, lowers maintenance costs, and ensures the continuous and stable operation of the dust suppression machine during building demolition construction.

[0018] 3. The heating bend adopts a "dual heat pipe + U-shaped bend parallel loop" structure, which significantly expands the heat exchange area; combined with the 360° rotation design driven by the rotary drive mechanism, it realizes all-round heating of the water in the water storage tank, improving heating uniformity and heat conduction efficiency.

[0019] 4. The rigid support frame, consisting of support plates, fixed rods, and support rods, provides stable support for the rotating heated bend, preventing swaying and displacement; the protective cover can effectively isolate construction dust, extend the service life of transmission components, enhance the overall impact resistance of the equipment, and adapt to the complex working conditions of building demolition construction. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the dust suppression machine for building demolition construction in a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the water storage tank, controller, and protective cover in a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the water storage tank in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the rotary drive mechanism in a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the support plate in a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the heating bend in a specific embodiment of the present invention.

[0021] In the diagram: 1. Water storage tank; 2. Rotary drive mechanism; 3. Controller; 201. Drive motor; 202. Rotating shaft; 203. Rotating sleeve; 204. Driving wheel; 205. Driven wheel; 206. Synchronous belt; 4. Protective cover; 5. Electric slip ring; 6. Connecting rod; 7. Connecting block; 8. Heating bend; 9. Support plate; 901. Snap-fit ​​hole; 10. Fixing rod; 1001. Fixing hole; 11. Support rod; 12. Motor fixing plate; 13. Anti-detachment plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the prior art, there is a patent with publication number CN120532228B that discloses a dust suppression machine for building demolition, such as... Figures 1 to 6 As shown, the dust suppression machine for building demolition in this invention is designed based on existing technology. The improvement lies in enabling the dust suppression machine to maintain stable dust suppression even in low-temperature environments. Specifically, a rotary drive mechanism 2 is installed on the top of the water storage tank 1. Two electric slip rings 5 ​​are symmetrically installed on the top of the water storage tank 1 about the rotary drive mechanism 2. The stator end of the electric slip ring 5 is fixedly connected to the water storage tank 1, and the rotor end of the electric slip ring 5 is connected to a connecting rod 6. The rotary drive mechanism 2 is driven by the connecting rods 6 on both sides. The connecting rod 6 is rotatably connected to the top of the water storage tank 1. The lower end of the connecting rod 6 is located inside the water storage tank 1 and is fixedly connected to a heating bend 8. A controller 3 is also provided on the water storage tank 1. The controller 3 is electrically connected to the rotary drive mechanism 2, the stator end of the electric slip ring 5, and the rotor end of the electric slip ring 5 is electrically connected to the heating bend 8.

[0024] It also includes a temperature sensor, the probe of which extends into the inner cavity of the water tank 1. The temperature sensor is electrically connected to the controller 3, which has a built-in power unit.

[0025] In operation, controller 3 controls the heating bend 8 to be energized and heat the water in the water tank 1. When the heated water is sprayed out through the nozzle of the mist cannon, because the water temperature is above freezing, the fine water mist will not condense into ice particles, but will diffuse to the work surface in the form of small liquid droplets. Through inertial collision and interception, it efficiently adsorbs dust particles in the air, increasing the mass of the dust and causing it to settle. The water temperature above freezing also prevents the fine water mist from condensing into ice particles and rebounding, maintaining a stable dust reduction efficiency by adsorbing dust particles in a liquid state. This also avoids the risk of ice particles clogging the nozzles and freezing and cracking the pipes, ensuring continuous operation of the equipment, reducing downtime maintenance costs, and bringing convenience to dust control during construction demolition in cold regions.

[0026] A driven wheel 205 is sleeved on the connecting rod 6. A rotating sleeve 203 is fixedly connected to the top surface of the water storage tank 1. The rotary drive mechanism 2 includes a drive motor 201, which is fixed to the water storage tank 1 by a motor fixing plate 12. A rotating shaft 202 is connected to the output shaft of the drive motor 201. The rotating shaft 202 is rotatably connected to the rotating sleeve 203. Two driving wheels 204 are fixedly sleeved on the outer wall of the rotating shaft 202. The two driving wheels 204 are respectively connected to the driven wheels 205 on both sides by a synchronous belt 206.

[0027] Specifically, the drive motor 201 drives the rotating shaft 202 to rotate, which in turn drives the upper and lower distributed drive wheels 204 to rotate synchronously. The synchronous belt 206 drives the driven wheel 205 to rotate, thereby enabling the heating bend 8 at the bottom of the connecting rod 6 to achieve 360° rotation heating in the water storage tank 1. This rotating structure significantly expands the contact area between the heating bend 8 and the water in the water storage tank 1, improving heat transfer efficiency. At the same time, dynamic stirring avoids local low temperature of the water.

[0028] A connecting block 7 is fixedly connected to the lower end of the connecting rod 6. Two vertically distributed heating bends 8 are fixedly connected to the bottom of the connecting block 7. Each heating bend 8 consists of two symmetrically arranged heat pipes. The heat pipes form a parallel loop structure formed by connecting multiple sets of left-right symmetrical U-shaped bends end to end. The bottom ends of the two heat pipes in the same heating bend 8 are connected. Through the two vertically distributed heating bends 8 at the bottom of the connecting block 7, and the U-shaped bend parallel loop structure formed by the two symmetrical heat pipes in each heating bend 8, the heat exchange area is significantly increased, improving the heating efficiency of the water in the water storage tank 1.

[0029] A support plate 9 is provided on the heating bend 8. The surface of the support plate 9 has several arc-shaped snap-fit ​​holes 901 that fit the outer wall of the heating bend 8. The heating bend 8 is snapped into the snap-fit ​​holes 901 to fix its position. A fixing rod 10 is vertically fixedly connected to the bottom surface of the connecting block 7. Multiple support rods 11 are fixedly connected between the fixing rod 10 and the support plate 9. A fixing block is fixedly connected to the bottom end of the fixing rod 10. The outer wall of the fixing block has two fixing holes 1001 for fixing the bottom end of the heating bend 8.

[0030] The heating bend 8 is secured to the support plate 9 by snapping in the snap-fit ​​holes 901 on its surface, providing stable support for the rotating heating bend 8 and preventing it from swaying and shifting under the influence of the connecting rod 6. The double-sided support plates 9 form a rigid frame, enhancing the structural strength of the heating bend 8 within the water storage tank 1 and also helping to evenly agitate the water during rotational heating. This significantly enhances the connection rigidity between the connecting block 7, the support plate 9, and the heating bend 8, effectively dispersing the stress during rotational heating and preventing structural deformation or loosening.

[0031] The connecting rod 6 is located on the outer wall between the top surface of the water storage tank 1 and the driven wheel 205, and an annular anti-detachment plate 13 is fixedly sleeved thereon; the bottom surface of the anti-detachment plate 13 is in contact with the top surface of the water storage tank 1, and the outer diameter of the anti-detachment plate 13 is larger than the diameter of the through hole between the connecting rod 6 and the water storage tank 1.

[0032] A protective cover 4 is fixedly connected to the top surface of the water storage tank 1. The driven wheel 205, the driving wheel 204 and the synchronous belt 206 are all located inside the protective cover 4. A maintenance cover plate is detachably connected to one side of the protective cover 4. The cover plate is fixed to the protective cover 4 by buckles or bolts.

[0033] Specifically, the protective cover 4 encloses the driven wheel 205, the driving wheel 204, and the synchronous belt 206, effectively isolating dust and debris from the construction environment, preventing the transmission components from jamming and wearing, and ensuring the transmission accuracy of the synchronous belt 206 and the smooth operation of the driven wheel 205 and the driving wheel 204; at the same time, it isolates the rotating parts to prevent accidental injury to personnel and improves operational safety; the stable protective structure ensures that the heating process of the heating bend 8 is not disturbed by the outside world, indirectly enhancing the reliability of water heating and the durability of the equipment in low-temperature environments.

[0034] The rotatable connection between the connecting rod 6 and the top of the water tank 1 is achieved through a rotary seal; the rotary seal is either a skeleton oil seal or a mechanical seal.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A dust falling machine for building demolition construction, comprising a water storage tank (1), characterized in that: The water storage tank (1) is provided with a rotary drive mechanism (2) on the top, and two electric slip rings (5) are symmetrically arranged on the top of the water storage tank (1) relative to the rotary drive mechanism (2). The stator end of the electric slip ring (5) is fixedly connected with the water storage tank (1), the rotor end of the electric slip ring (5) is connected with a connecting rod (6), and the rotary drive mechanism (2) is in transmission connection with the two connecting rods (6). The connecting rod (6) is rotatably connected with the top of the water storage tank (1), the lower end of the connecting rod (6) is located in the water storage tank (1) and is fixedly connected with a heating elbow pipe (8). The water storage tank (1) is further provided with a controller (3), the controller (3) is electrically connected with the rotary drive mechanism (2), the controller (3) is electrically connected with the stator end of the electric slip ring (5), and the rotor end of the electric slip ring (5) is electrically connected with the heating elbow pipe (8).

2. The construction demolition dust suppression machine of claim 1, wherein: A driven wheel (205) is sleeved on the connecting rod (6), and a rotating sleeve (203) is fixedly connected to the top surface of the water storage tank (1). The rotary drive mechanism (2) comprises a driving motor (201), and a rotating shaft (202) is connected to the output shaft of the driving motor (201). The rotating shaft (202) is rotatably connected with the rotating sleeve (203), and two driving wheels (204) are fixedly sleeved on the outer wall of the rotating shaft (202) and are arranged in an up-down manner. The two driving wheels (204) are in transmission connection with the two driven wheels (205) through a synchronous belt (206).

3. The construction demolition dust suppression machine of claim 1, wherein: The lower end of the connecting rod (6) is fixedly connected with a connecting block (7), and the bottom of the connecting block (7) is fixedly connected with two heating elbow pipes (8) arranged in a vertical manner. Each heating elbow pipe (8) is composed of two symmetrically arranged heat pipes. The heat pipe is a parallel loop structure formed by a plurality of symmetrically arranged U-shaped elbow pipes connected end to end. The two heat pipes in the same heating elbow pipe (8) are connected at the bottom.

4. The construction demolition dust suppression machine of claim 3, wherein: The heating elbow pipe (8) is provided with a support plate (9), and a plurality of arc-shaped clamping holes (901) matched with the outer wall of the heating elbow pipe (8) are formed in the surface of the support plate (9). The heating elbow pipe (8) is clamped in the clamping hole (901) to fix the position of the heating elbow pipe (8).

5. The construction demolition dust suppression machine of claim 4, wherein: The bottom surface of the connecting block (7) is fixedly connected with a fixed rod (10), and a plurality of supporting rods (11) are fixedly connected between the fixed rod (10) and the support plate (9).

6. The construction demolition dust suppression machine of claim 5, wherein: The bottom end of the fixed rod (10) is fixedly connected with a fixed block, and two fixed holes (1001) are formed in the outer wall of the fixed block for fixing the bottom end of the heating elbow pipe (8).

7. The construction demolition dust suppression machine of claim 1, wherein: An annular anti-falling plate (13) is fixedly sleeved on the outer wall of the connecting rod (6) between the top surface of the water storage tank (1) and the driven wheel (205). The bottom surface of the anti-falling plate (13) is attached to the top surface of the water storage tank (1), and the outer diameter of the anti-falling plate (13) is greater than the hole diameter of the through hole of the connecting rod (6) and the water storage tank (1).

8. The construction demolition dust suppression machine of claim 1, wherein: The top surface of the water storage tank (1) is fixedly connected with a protective cover (4), and the driven wheel (205), the driving wheel (204) and the synchronous belt (206) are located inside the protective cover (4). A maintenance cover plate is detachably connected to one side of the protective cover (4), and the cover plate is fixed to the protective cover (4) by buckles or bolts.

9. The construction demolition dust suppression machine of claim 1, wherein: The rotary connection between the connecting rod (6) and the top of the water storage tank (1) is realized by a rotary sealing element. The rotary sealing element is a skeleton oil seal or a mechanical sealing element.

10. The construction demolition dust suppression machine of claim 1, wherein: It also comprises a temperature sensor, the detection end of which extends into the inner cavity of the water storage tank (1), and the temperature sensor is electrically connected with the controller (3), and the controller (3) is internally provided with a power unit.

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