Dust removal system of rotary drilling rig

Abstract

The utility model relates to the technical field of construction dust removal equipment, in particular to a dust removal system of a rotary drilling rig, which comprises the rotary drilling rig and a hydraulic oil source arranged on the rotary drilling rig, an oil guide pipe is communicated between the hydraulic oil source and a high-pressure water pump, and an electric proportional pressure reducing valve and an electric control direction valve are arranged on the outer wall of the oil guide pipe. A one-way throttle valve is connected between the electric control direction valve and the high-pressure water pump in series, the high-pressure water pump is provided with a safety valve for overload protection, a pressure gauge can observe water pressure in real time, an outlet of the high-pressure water pump is connected with the sprayer through a high-pressure water pipe, and a nozzle of the sprayer can select corresponding specifications according to flow and atomization effect. The nozzles are connected through water pipes, in addition, the shape of the sprayer is not limited, the sprayer can be in a square shape, a round shape or other shapes, through the novel hydraulic system and the sprayer structure, the atomization spraying dust removal function in the construction of the rotary drilling rig is achieved, and therefore the purposes of reducing dust diffusion and achieving environment protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction dust removal equipment, in particular to a dust removal system for a rotary drilling rig. Background Art

[0002] With the unprecedented development of the modern construction industry, the pile foundation engineering industry has developed rapidly, and rotary drilling rigs have been widely used in pile foundation engineering. Research on special hard rock drilling methods for rotary drilling rigs has also been carried out, especially the development and construction promotion of multifunctional rotary drilling rigs with down-the-hole hammering method.

[0003] Because this type of rotary drilling rig uses compressed air as the impact force for down-the-hole hammering, rock crushing produces a large amount of dust and debris that spreads into the air. Due to their light weight, these fine dust particles are easily blown far away, significantly impacting the on-site construction environment. There is an urgent need for a rotary drilling rig with built-in dust removal to reduce dust dispersal and thus achieve environmental protection. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary drilling rig dust removal system, which has the function of realizing atomization spraying dust removal during the construction of the rotary drilling rig, thereby reducing dust diffusion and achieving the purpose of environmental protection.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a rotary drilling rig dust removal system, comprising a rotary drilling rig and a hydraulic oil source arranged on the rotary drilling rig, a high-pressure water pump being provided on one side of the hydraulic oil source, an oil guide pipe being connected between the hydraulic oil source and the high-pressure water pump, an electric proportional pressure reducing valve and an electric-controlled directional valve being provided on the outer wall of the oil guide pipe, a one-way throttle valve being connected in series between the electric-controlled directional valve and the high-pressure water pump, a water tank being provided on one side of the high-pressure water pump, a sprayer being provided on the other side of the high-pressure water pump, and high-pressure water pipes being connected between the water tank, the sprayer and the high-pressure water pump.

[0006] In order to control the opening and closing of the pipeline between the high-pressure water pump and the water tank and filter the water source, as a preferred rotary drilling rig dust removal system of the present invention, a ball valve and a filter are provided on the outer wall of the high-pressure water pipe between the high-pressure water pump and the water tank.

[0007] In order to spray and reduce dust, as a preferred rotary drilling rig dust removal system of the present invention, a plurality of nozzles are provided on the outer wall of the sprayer, and the plurality of nozzles are connected by water pipes.

[0008] In order to utilize the continuous output characteristics of the metering pump without consuming additional hydraulic power and thus achieve energy saving, as a preferred rotary drilling rig dust removal system of the present invention, the hydraulic oil source is a rotary drilling rig pilot oil pump.

[0009] In order to wet the dust in the air with spray particles, increase the weight of the dust, and quickly remove the dust, as a preferred rotary drilling rig dust removal system of the present invention, the diameter of the nozzle is 5-10um.

[0010] In order to provide overload protection and observe water pressure in real time, as a preferred embodiment of the rotary drilling rig dust removal system of the present invention, a safety valve and a pressure gauge are provided on the outer wall of the high-pressure water pump.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] After the high-pressure water pump is started, pure water is drawn from the water tank, and after being fully filtered through the open ball valve and filter, it enters the inlet of the high-pressure water pump. The high-pressure water pump is designed with a safety valve to protect against overload and a pressure gauge to observe the water pressure in real time. The outlet of the high-pressure water pump is connected to the sprayer through a high-pressure water pipe. The nozzle can be selected according to the flow rate and atomization effect. The nozzles are connected by water pipes. In addition, there is no restriction on the shape of the sprayer, which can be square, round or other shapes. Through this new hydraulic system and sprayer structure, the atomization spray dust removal function in the construction of the rotary drilling rig can be realized, thereby reducing dust diffusion and achieving the purpose of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall system of the utility model.

[0014] In the figure: 1. Hydraulic oil source; 2. High-pressure water pump; 3. Electric proportional pressure reducing valve; 4. Electric directional valve; 5. One-way throttle valve; 6. Water tank; 7. Sprayer; 8. Ball valve; 9. Filter. DETAILED DESCRIPTION

[0015] See also Figure 1 A rotary drilling rig dust removal system includes a rotary drilling rig and a hydraulic oil source 1 arranged on the rotary drilling rig. A high-pressure water pump 2 is provided on one side of the hydraulic oil source 1. An oil guide pipe is connected between the hydraulic oil source 1 and the high-pressure water pump 2. An electric proportional pressure reducing valve 3 and an electric-controlled directional valve 4 are provided on the outer wall of the oil guide pipe. A one-way throttle valve 5 is connected in series between the electric-controlled directional valve 4 and the high-pressure water pump 2. A water tank 6 is provided on one side of the high-pressure water pump 2, and a sprayer 7 is provided on the other side of the high-pressure water pump 2. High-pressure water pipes are connected between the water tank 6 and the sprayer 7 and the high-pressure water pump 2.

[0016] In this embodiment: the rotary drilling rig dust removal system adopts the rotary drilling rig pilot oil pump as the hydraulic oil source 1, and the hydraulic oil drawn out is passed through the electric proportional pressure reducing valve 3 to realize the hydraulic drive pressure regulation of the high-pressure water pump 2, while not affecting the pressure stability of the rotary drilling rig pilot system. When the hydraulic oil continues to flow through the electronically controlled directional valve 4, the electronically controlled directional valve 4 serves as the starting switch of the high-pressure water pump 2. The electronically controlled directional valve 4 and the high-pressure water pump 2 are connected through a one-way throttle valve 5 in series. The hydraulic drive flow rate is regulated by adjusting the one-way throttle valve 5, thereby achieving the purpose of controlling the output flow of the high-pressure water pump 2. The high-pressure water pump 2 is connected to the electronically controlled directional valve 4 for oil return.

[0017] After the high-pressure water pump 2 is started, pure water is drawn from the water tank 6, and after being fully filtered through the open ball valve 8 and filter 9, it enters the inlet of the high-pressure water pump 2. The high-pressure water pump 2 is designed with a safety valve to play an overload protection role and a pressure gauge to observe the water pressure in real time. The outlet of the high-pressure water pump 2 is connected to the sprayer 7 through a high-pressure water pipe. The nozzle thereof can be selected according to the flow rate and atomization effect. The nozzles are connected by water pipes. In addition, the shape of the sprayer 7 is not limited and can be square, round or other shapes. Through this new hydraulic system and sprayer structure, the atomization spray dust removal function in the construction of the rotary drilling rig can be realized, thereby reducing dust diffusion and achieving the purpose of environmental protection.

[0018] The pressure and flow of the high-pressure water pump 2 are electrically proportionally adjusted and manually adjusted according to the on-site working conditions. The high-pressure water pipe is easy to disassemble and can be replaced with different shapes to adapt to a variety of working devices. The total volume of the water tank can be modularly customized according to the on-site water demand. It uses a standard installation interface and is placed above the working platform of the rotary drilling rig host. Multiple sets of modular water tanks can work in parallel and superimposed. The system can directly lead a pipeline from the outlet of the high-pressure water pump 2 to the air pipe of the down-the-hole hammer, thereby entering the air hole of the down-the-hole hammer head. Through the rotation of the down-the-hole hammer, the dust at the bottom of the pile hole is directly injected with water to remove dust.

[0019] As a technical optimization solution of the present invention, a ball valve 8 and a filter 9 are provided on the outer wall of the high-pressure water pipe between the high-pressure water pump 2 and the water tank 6 .

[0020] In this embodiment, a ball valve 8 and a filter 9 are provided on the outer wall of the high-pressure water pipe between the high-pressure water pump 2 and the water tank 6 to facilitate the control of the opening and closing of the high-pressure water pipe between the high-pressure water pump 2 and the water tank 6 and to filter the water.

[0021] As a technical optimization solution of the present invention, a plurality of nozzles are provided on the outer wall of the sprayer 7, and the plurality of nozzles are connected through water pipes.

[0022] In this embodiment, a plurality of nozzles are provided on the outer wall of the sprayer 7, and the plurality of nozzles are connected by water pipes to facilitate spraying and dust removal.

[0023] As a technical optimization solution of the present invention, the hydraulic oil source 1 is a pilot oil pump of a rotary drilling rig.

[0024] In this embodiment, the hydraulic oil source 1 is a pilot oil pump of a rotary drilling rig. By utilizing the continuous output characteristics of the quantitative pump, no additional hydraulic power is consumed, thereby achieving energy saving.

[0025] As a technical optimization solution of the present invention, the diameter of the nozzle is 5-10um.

[0026] In this embodiment, the nozzle has a diameter of 5-10 μm, and ultrafine particles of 5-10 μm are sprayed into the air. The ultrafine particles are rapidly diluted in the air, and the spray particles wet the dust in the air, increasing the dust weight and quickly removing the dust.

[0027] As a technical optimization solution of the present invention, a safety valve and a pressure gauge are provided on the outer wall of the high-pressure water pump 2 .

[0028] In this embodiment: the safety valve plays an overload protection role, and the pressure gauge can observe the water pressure in real time.

[0029] Working principle: The rotary drilling rig dust removal system adopts the rotary drilling rig pilot oil pump as the hydraulic oil source 1, and the hydraulic oil drawn out is passed through the electric proportional pressure reducing valve 3 to realize the hydraulic drive pressure regulation of the high-pressure water pump 2, while not affecting the pressure stability of the rotary drilling rig pilot system. When the hydraulic oil continues to flow through the electric control directional valve 4, the electric control directional valve 4 serves as the starting switch of the high-pressure water pump 2. The electric control directional valve 4 and the high-pressure water pump 2 are connected through the one-way throttle valve 5 in series. The hydraulic drive flow is regulated by adjusting the one-way throttle valve 5, thereby achieving the purpose of controlling the output flow of the high-pressure water pump 2. The high-pressure water pump 2 is connected to the electric control directional valve 4 for oil return;

[0030] After the high-pressure water pump 2 is started, pure water is drawn from the water tank 6, and enters the inlet of the high-pressure water pump 2 after being fully filtered through the open ball valve 8 and filter 9. The high-pressure water pump 2 is designed with a safety valve to play an overload protection role and a pressure gauge to observe the water pressure in real time. The outlet of the high-pressure water pump 2 is connected to the sprayer 7 through a high-pressure water pipe. The nozzle can be selected according to the flow rate and atomization effect. The nozzles are connected by water pipes. In addition, the shape of the sprayer 7 is not limited and can be square, round or other shapes. Through this new hydraulic system and sprayer structure, the atomization spray dust removal function in the construction of the rotary drilling rig can be realized, thereby reducing dust diffusion and achieving the purpose of environmental protection.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary drilling rig dust removal system, comprising a rotary drilling rig and a hydraulic oil source (1) arranged on the rotary drilling rig, characterized in that: A high-pressure water pump (2) is provided on one side of the hydraulic oil source (1), an oil guide pipe is connected between the hydraulic oil source (1) and the high-pressure water pump (2), an electric proportional pressure reducing valve (3) and an electric-controlled directional valve (4) are provided on the outer wall of the oil guide pipe, a one-way throttle valve (5) is connected in series between the electric-controlled directional valve (4) and the high-pressure water pump (2), a water tank (6) is provided on one side of the high-pressure water pump (2), a sprayer (7) is provided on the other side of the high-pressure water pump (2), and a high-pressure water pipe is connected between the water tank (6) and the sprayer (7) and the high-pressure water pump (2).

2. The rotary drilling rig dust removal system according to claim 1, characterized in that: A ball valve (8) and a filter (9) are provided on the outer wall of the high-pressure water pipe between the high-pressure water pump (2) and the water tank (6).

3. The rotary drilling rig dust removal system according to claim 1, characterized in that: The outer wall of the sprayer (7) is provided with a plurality of nozzles, and the plurality of nozzles are connected through water pipes.

4. The rotary drilling rig dust removal system according to claim 1, characterized in that: The hydraulic oil source (1) is a pilot oil pump of a rotary drilling rig.

5. The rotary drilling rig dust removal system according to claim 3, characterized in that: The diameter of the nozzle is 5-10 μm.

6. The rotary drilling rig dust removal system according to claim 1, characterized in that: The outer wall of the high-pressure water pump (2) is provided with a safety valve and a pressure gauge.

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