A dust suppression device for a bucket wheel machine head

Abstract

The utility model discloses a kind of bucket wheel machine head dust suppression devices, be arranged on bucket wheel machine cantilever girder steel frame structure for inhibiting dust, comprising: water supply mechanism, the water inlet pipe connected with water supply mechanism, the spray water pipeline being communicated with water inlet pipe and four groups of spray units arranged on spray water pipeline, spray water pipeline is along bucket wheel machine cantilever girder steel frame structure layout, each group of spray units includes three nozzles, nozzle is fan-shaped spray port structure, the angle of nozzle and horizontal line is 60 °-90 °, the spray angle of nozzle is 100 °-130 °, the interval of adjacent nozzle is 20-40 centimeter, the bucket wheel machine head dust suppression device of the utility model, simple structure, fine water mist particle that sprays from nozzle can cover bucket wheel machine operation area in large area, can be combined with dust rapidly and instantaneously and make it settle.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal equipment for bucket wheel excavators, and in particular to a dust suppression device for the head of a bucket wheel excavator. Background Technology

[0002] During the stacking and reclaiming operation of bucket wheel excavators, a large amount of dust is generated due to factors such as coal quality and drop. This dust has a small diameter and light weight, and it is easily dispersed and diffused in the dry coal shed by airflow. Long-term exposure to a coal dust-polluted environment has an adverse effect on the physical and mental health of personnel. In addition, dust entering the bearings, reducers, motors and other critical components of the bucket wheel excavator accelerates the wear process of these components, affecting the normal operation and service life of the equipment.

[0003] Existing coal yard spraying systems and mist sprayers are based on fixed-location installation, which limits their coverage and flexibility. Bucket wheel excavators often require large-scale movement and multi-angle operation during operation. These fixed-location devices are difficult to adjust in a timely manner to keep up with the dynamic changes of the bucket wheel excavator, and cannot continuously and comprehensively suppress dust during the operation of the bucket wheel excavator. In addition, some bucket wheel excavators have their own spraying devices, but their nozzle structures are relatively simple, with narrow coverage and poor spray uniformity, making it difficult to achieve long-term and efficient dust suppression effects. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a dust suppression device for the head of a bucket wheel excavator. The device features a simple structure and straightforward installation process. It fully considers the existing bucket wheel excavator equipment and utilizes existing equipment interfaces, fixing points, and other basic conditions to facilitate successful installation and modification. The uniform and fine water mist particles sprayed from the nozzle can cover a large area of ​​the bucket wheel excavator's operating area, quickly combining with and promoting the settling of dust particles. This significantly reduces the impact of dust on the surrounding environment and substantially improves the working environment for personnel.

[0005] To solve the above-mentioned technical problems, the present invention adopts a dust suppression device for the head of a bucket wheel excavator, which is arranged on the cantilever beam steel frame structure of the bucket wheel excavator to suppress dust. It includes: a water supply mechanism, a water inlet pipe connected to the water supply mechanism, a spray water pipeline connected to the water inlet pipe, and four sets of spray units arranged on the spray water pipeline. The spray water pipeline is arranged along the cantilever beam steel frame structure of the bucket wheel excavator. Each set of spray units includes three nozzles. The nozzles have a fan-shaped spray nozzle structure. The angle between the nozzle and the horizontal line is 60°-90°. The spray angle of the nozzle is 100°-130°. The interval between adjacent nozzles is 20-40 cm.

[0006] In a preferred embodiment of the present invention, the spray water pipeline includes a bucket wheel side spray pipe, a non-bucket wheel side spray pipe and a cantilever upper spray pipe that are connected to each other. The cantilever upper spray pipe is installed on the cantilever support. Two sets of spray units are set on the bucket wheel side spray pipe, one set of spray units is set on the non-bucket wheel side spray pipe and the other set of spray units is set on the cantilever upper spray pipe.

[0007] In a preferred embodiment of this utility model, the bucket wheel side spray pipe and the non-bucket wheel side spray pipe are welded to the bucket wheel machine cantilever beam frame via an L-shaped bracket, and the upper cantilever spray pipe is welded to the cantilever bracket.

[0008] In a preferred embodiment of this utility model, the diameter of the bucket wheel side spray pipe, the non-bucket wheel side spray pipe, and the upper cantilever spray pipe is 22-30 mm.

[0009] In a preferred embodiment of this utility model, the bucket wheel side spray pipe, the non-bucket wheel side spray pipe, and the upper cantilever spray pipe are made of galvanized steel pipe.

[0010] In a preferred embodiment of this utility model, a flow control valve group is further provided on the water inlet pipe, the flow control valve group including a manual valve and a solenoid valve.

[0011] In a preferred embodiment of this utility model, a remote control system is also included, wherein the solenoid valve is connected to the remote control system signal.

[0012] In a preferred embodiment of the present invention, the water supply mechanism includes a water tank of the bucket wheel excavator and a water pump installed on the water inlet pipe.

[0013] In a preferred embodiment of this utility model, a filter screen is provided between the water tank and the water pump.

[0014] In a preferred embodiment of this utility model, the nozzle is made of 304 stainless steel.

[0015] The beneficial effects of this utility model are: simple structure, simple installation process, can fully consider the existing bucket wheel excavator equipment condition, and can be successfully retrofitted by utilizing existing equipment interfaces, fixing points and other basic conditions. It is perfectly applicable to bucket wheel excavator coal unloading, coal taking and other related operation scenarios, and effectively suppresses dust. The uniform and fine water mist particles sprayed from the nozzle can cover a large area of ​​the bucket wheel excavator operation area, can quickly combine with the immediate dust and promote its settling, greatly reduce the impact of dust on the surrounding environment, significantly improve the working environment of the workers, and provide strong protection for the occupational health of the workers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is a schematic diagram of the dust suppression device at the head of the bucket wheel excavator according to this utility model;

[0018] Figure 2 This is a first-view installation schematic diagram of the dust suppression device at the head of the bucket wheel excavator according to this utility model;

[0019] Figure 3 This is a second-view installation diagram of the dust suppression device at the head of the bucket wheel excavator according to this utility model;

[0020] Figure 4 This is a third-view installation diagram of the dust suppression device at the head of the bucket wheel excavator according to this utility model. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Please see Figure 1-4 This utility model discloses a dust suppression device for the head of a bucket wheel excavator, which is arranged on the cantilever beam steel frame structure of the bucket wheel excavator to suppress dust. It includes: a water supply mechanism, a water inlet pipe 1 connected to the water supply mechanism, a spray water pipeline connected to the water inlet pipe, and four spray units 2 arranged on the spray water pipeline. The water supply mechanism includes a water tank 3 and a water pump 4 of the bucket wheel excavator. A filter screen 5 is installed between the water tank and the water pump. The water pump model can be a 40SG15-50 vertical pipeline centrifugal pump with a head of approximately 50m and a flow rate of 15m³ / h. 3 / h, which can effectively overcome pipeline resistance and ensure stable water supply.

[0023] Specifically, the spray water pipeline is laid along the steel frame structure of the bucket wheel excavator's cantilever beam. The spray water pipeline and nozzles do not exceed the existing steel frame structure of the bucket wheel excavator, do not affect personnel passage, and do not pose a risk of collision. Each spray unit includes three nozzles, which are made of 304 stainless steel. The nozzles have a fan-shaped spray nozzle structure, with an angle of 60°-90° to the horizontal line and a spray angle of 100°-130°. The interval between adjacent nozzles is 20-40 cm. The nozzles are used to make the pressurized water highly dispersed when sprayed, forming uniform and fine water mist particles that can quickly spread within the bucket wheel excavator's operating area and fully contact the coal dust.

[0024] Specifically, the spray water pipeline includes interconnected bucket wheel-side spray pipe 7, non-bucket wheel-side spray pipe 8, and upper cantilever spray pipe 9. The upper cantilever spray pipe is installed on the cantilever support 10, which spans above the main roller 11 at the cantilever head. Two sets of spray units are installed on the bucket wheel-side spray pipe, one set on the non-bucket wheel-side spray pipe, and the other set on the upper cantilever spray pipe. The bucket wheel-side and non-bucket wheel-side spray pipes are welded together via an L-shaped bracket. Attached to the cantilever beam of the bucket wheel excavator, the cantilever beam steel frame is welded to the spray water pipeline to form a fixed connection, effectively absorbing the stress generated by water flow impact and equipment vibration, ensuring the long-term stable operation of the spray water pipeline. The upper spray pipe of the cantilever is welded to the cantilever support. The diameter of the spray pipes on the bucket wheel side, the non-bucket wheel side, and the upper spray pipe of the cantilever is 22-30MM. The material of the spray pipes on the bucket wheel side, the non-bucket wheel side, and the upper spray pipe of the cantilever is galvanized steel pipe.

[0025] Specifically, the water inlet pipe is also equipped with a flow control valve group, which includes a manual valve 12 and a solenoid valve 13. It includes a remote control system, and the solenoid valve is connected to the remote control system. The remote control system can be a PLC controller, which supports on-site operation of the bucket wheel excavator or control of the solenoid valve's start and stop through the remote control system. The two operation modes can be seamlessly switched, ensuring both operational flexibility and significantly improving the safety and controllability of equipment operation. The solenoid valve is opened and closed through a pre-programmed control program, ensuring the stability and precise control of the water supply pipeline. The water spray volume can be flexibly adjusted according to the different amounts of coal dust generated.

[0026] The beneficial effects of this utility model are: simple structure, concise installation process, and full consideration of the existing bucket wheel excavator equipment conditions. Utilizing existing equipment interfaces, fixing points, and other basic conditions, the retrofit can be successfully completed. It is perfectly applicable to bucket wheel excavator coal unloading, coal taking, and other related operational scenarios, effectively suppressing dust. The uniform and fine water mist particles sprayed from the nozzle can cover a large area of ​​the bucket wheel excavator's operating area, quickly combining with and promoting the settling of immediate dust, greatly reducing the impact of dust on the surrounding environment, significantly improving the working environment for workers, and providing strong protection for their occupational health.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust suppression device for the head of a bucket wheel excavator, arranged on the steel frame structure of the cantilever beam of the bucket wheel excavator for suppressing dust, characterized in that, include: The system includes a water supply mechanism, an inlet pipe connected to the water supply mechanism, a spray water pipeline connected to the inlet pipe, and four spray units arranged on the spray water pipeline. The spray water pipeline is laid along the steel frame structure of the bucket wheel excavator cantilever beam. Each spray unit includes three nozzles. The nozzles have a fan-shaped spray nozzle structure. The angle between the nozzle and the horizontal line is 60°-90°. The spray angle of the nozzle is 100°-130°. The interval between adjacent nozzles is 20-40 cm.

2. The dust suppression device for the head of a bucket wheel excavator according to claim 1, characterized in that, The spray water pipeline includes a connected bucket wheel side spray pipe, a non-bucket wheel side spray pipe, and an upper cantilever spray pipe. The upper cantilever spray pipe is installed on the cantilever support. Two sets of spray units are set on the bucket wheel side spray pipe, one set of spray units is set on the non-bucket wheel side spray pipe, and the other set of spray units is set on the upper cantilever spray pipe.

3. The dust suppression device at the head of a bucket wheel excavator according to claim 2, characterized in that, The bucket wheel side spray pipe and the non-bucket wheel side spray pipe are welded to the bucket wheel machine cantilever beam frame via L-shaped brackets, and the upper cantilever spray pipe is welded to the cantilever bracket.

4. A dust suppression device for the head of a bucket wheel excavator according to claim 2, characterized in that, The diameter of the spray pipes on the bucket wheel side, the non-bucket wheel side, and the upper part of the cantilever spray pipe is 22-30 mm.

5. A dust suppression device for the head of a bucket wheel excavator according to claim 2, characterized in that, The spray pipes on the bucket wheel side, the non-bucket wheel side, and the upper cantilever spray pipe are made of galvanized steel pipes.

6. A dust suppression device for the head of a bucket wheel excavator according to claim 1, characterized in that, The inlet pipe is also equipped with a flow control valve assembly, which includes a manual valve and a solenoid valve.

7. A dust suppression device for the head of a bucket wheel excavator according to claim 6, characterized in that, It also includes a remote control system, and the solenoid valve is connected to the remote control system signal.

8. A dust suppression device for the head of a bucket wheel excavator according to claim 1, characterized in that, The water supply mechanism includes the bucket wheel excavator's water tank and a water pump installed on the inlet pipe.

9. A dust suppression device for the head of a bucket wheel excavator according to claim 8, characterized in that, A filter screen is installed between the water tank and the water pump.

10. A dust suppression device for the head of a bucket wheel excavator according to claim 1, characterized in that, The nozzle is made of 304 stainless steel.

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