Dust-free dust removal system of mine drilling machine

Abstract

A dust-free dust removal system of a mine drilling machine relates to the technical field of air purification and comprises a dry dust removal part and a wet dust removal part. The system integrates the advantages of a dry type dust removal technology and a wet type dust removal technology, the water flow is adjusted through air pressure, air pressure and hydraulic oil pressure, dust removal is more accurate, full-particle-size dust is covered, the system adapts to various working conditions, maximum health guarantee is achieved for staff, the service life of a drilling tool and a filter element can be greatly prolonged, and oil consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and in particular to a dust-free dust removal system for mining drilling rigs. Background Technology

[0002] With increasing public concern about air quality and evolving environmental and environmental protection requirements, governments and businesses have formulated increasingly stringent industrial dust emission standards, placing higher demands and standards on the dust removal performance of down-the-hole drilling rigs during drilling operations.

[0003] Dry dust collection technology uses gas-solid separation to achieve dust separation and settling. It is suitable for large dust particles and is easy to maintain, but its effectiveness is limited for fine dust. Wet dust collection technology uses atomized water vapor to fully contact and capture dust-laden gas, causing the dust to be moistened and separated from the airflow, thus achieving dust separation and settling. It is suitable for environments with readily available water sources and high humidity or sticky dust, but it produces water sludge that requires secondary treatment.

[0004] Therefore, a dust-free dust removal system for mining drilling rigs is needed. This system combines the advantages of dry dust removal technology and wet dust removal technology. By adjusting the water flow through wind pressure, air pressure and hydraulic oil pressure, the dust removal is more precise and covers dust of all particle sizes. It is adaptable to various working conditions, maximizes the health protection of employees, and can significantly extend the service life of drilling tools and filter elements, and reduce oil consumption. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a dust-free dust removal system for mining drilling rigs, thereby solving these problems.

[0006] The technical solution used in this invention is: a dust-free dust removal system for mining drilling rigs, comprising a dry dust removal section and a wet dust removal section; The dry dust removal unit includes: a dust collector, a first hydraulic motor, a cyclone separator, a dust collection hood, pipe I, pipe II, and water dust removal nozzles; the dust collector is fixedly installed on the mining drilling rig, and a slag discharge port is provided at the lower end of the dust collector; the first hydraulic motor is fixedly installed on the dust collector; the cyclone separator is installed on the mining drilling rig; the dust collection hood is installed at the borehole; one end of pipe I is fixedly connected to the dust collection hood, and the other end of pipe I is fixedly connected to the side inlet of the cyclone separator; one end of pipe II is fixedly connected to the upper outlet of the cyclone separator, and the other end of pipe II is fixedly connected to the side inlet of the dust collector; there are two water dust removal nozzles, which are installed on both sides of the slag discharge port of the dust collector; The wet dust removal unit includes: a water tank, a water pump, and a second hydraulic motor; the water tank is fixedly installed on the upper end face of the dust collector by screws and nuts; the water pump is fixedly installed on the mining drilling rig, and the water pump is connected to the water tank by a pipe; the second hydraulic motor is fixedly installed on the side of the water pump. Preferably, the dust collection hood is equipped with a water dust removal nozzle on its side, which performs secondary dust suppression.

[0007] Preferably, the water tank has a capacity of 160L, and the main body is made of aluminum-magnesium alloy, while the accessories are made of PVC, rubber, and 304 stainless steel.

[0008] Preferably, the water tank is heated by the high-temperature exhaust gas from the diesel engine.

[0009] Preferably, the dry dust removal unit further includes an exhaust port; the exhaust port is fixedly installed on the dust collector.

[0010] Preferably, the wet dust removal unit further includes: an oil mist lubricator, a rotary gearbox, and a proportional valve; the oil mist lubricator is installed on the mining drilling rig and is connected to the water pump via a pipe; the rotary gearbox is installed on the mining drilling rig and is connected to the oil mist lubricator via a pipe.

[0011] Preferably, the oil mist lubricator and the rotary gearbox are used together; the proportional valve controls the opening degree of the second hydraulic motor, controls the output flow of the water pump, and changes the amount of water mist required.

[0012] Preferably, a nozzle is installed at the lower position of the rotary gearbox.

[0013] Preferably, the slag discharge slope of the dust collector is equipped with a water dust removal nozzle.

[0014] The advantages of this invention compared to the prior art are: 1. This invention combines the advantages of dry dust removal technology and wet dust removal technology. It controls the water flow rate by adjusting the working speed of the water pump and determines the dust concentration of the water mist by adjusting the working pressure of the water pump, thus achieving more precise dust removal.

[0015] This invention covers dust of all particle sizes, adapting to various working conditions and providing maximum health protection for employees.

[0016] This invention uses high-temperature exhaust gas from a diesel engine to heat the water in the water tank, thus preventing the water from freezing in extremely cold regions.

[0017] The main body of the 160L water tank of this invention is made of aluminum-magnesium alloy, and the accessories are made of PVC, rubber and 304 stainless steel, which will not rust.

[0018] This invention significantly extends the service life of drilling tools and filter elements. By controlling the opening degree of the second hydraulic motor through a proportional valve, the output flow of the water pump is controlled, thereby changing the amount of water mist required and achieving energy saving. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the first structure of the dry dust removal unit of the present invention.

[0021] Figure 3 For the present invention Figure 2 A magnified structural diagram at point A.

[0022] Figure 4 This is a schematic diagram of the wet dust removal unit of the present invention.

[0023] Figure 5 This is a schematic diagram of the second structure of the dry dust removal unit of the present invention.

[0024] The attached figures are labeled as follows: 1. Dry dust collection section; 2. Wet dust collection section; 101. Dust collector; 102. First hydraulic motor; 103. Exhaust outlet; 104. Cyclone drum; 105. Dust collection hood; 106. Pipeline I; 107. Pipeline II; 108. Water dust removal nozzle; 109. Water dust removal nozzle; 201. Water tank; 202. Water pump; 203. Second hydraulic motor; 204. Oil mist lubricator; 205. Rotary gearbox; 206. Proportional valve. Detailed Implementation

[0025] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] First embodiment: like Figures 1-4 As shown, a dust-free dust removal system for a mining drilling rig includes a dry dust removal unit 1 and a wet dust removal unit 2.

[0028] like Figure 2 , Figure 3As shown, the dry dust removal unit 1 includes: a dust collector 101, a first hydraulic motor 102, a cyclone separator 104, a dust collection hood 105, pipe I 106, pipe II 107, and a water dust removal nozzle 109; the dust collector 101 is fixedly installed on the mining drilling rig, and a slag discharge port is provided at the lower end of the dust collector 101; the first hydraulic motor 102 is fixedly installed on the dust collector 101; the cyclone separator 104 is installed on the mining drilling rig, and the cyclone separator discharges larger dust particles; the dust collection hood 105 is installed at the borehole; pipe I 106 107 108 109 100 109 100 100 101 ... One end of pipe 6 is fixedly connected to dust collection hood 105, and the other end of pipe I 106 is fixedly connected to the side inlet of cyclone barrel 104; one end of pipe II 107 is fixedly connected to the upper outlet of cyclone barrel 104, and the other end of pipe II 107 is fixedly connected to the side inlet of dust collector 101; there are two water dust removal nozzles 109, which are installed on both sides of the slag discharge port of dust collector 101. The water dust removal nozzles 109 perform a fourth dust reduction on the discharged dust particles to achieve the purpose of dust removal.

[0029] like Figure 4 As shown, the wet dust removal unit 2 includes: a water tank 201, a water pump 202, and a second hydraulic motor 203; the water tank 201 is fixedly installed on the upper end face of the dust collector 101 by screws and nuts; the water pump 202 is fixedly installed on the mining drilling rig, and the water pump 202 is connected to the water tank 201 by a pipe; the second hydraulic motor 203 is fixedly installed on the side of the water pump 202.

[0030] like Figure 3 As shown, a water dust removal nozzle 108 is installed on the side of the dust collection hood 105, and the water dust removal nozzle 108 performs secondary dust suppression.

[0031] like Figure 4 As shown, water tank 201 is a 160L dry dust removal unit. The main body is made of aluminum-magnesium alloy, and the accessories are made of PVC, rubber and 304 stainless steel, which will not rust.

[0032] like Figure 4 As shown, the water tank 201 heats the water inside by the high-temperature exhaust gas from the diesel engine, preventing the water from freezing in extremely cold regions.

[0033] like Figure 2 As shown, the dry dust removal unit 1 also includes an exhaust port 103; the exhaust port 103 is fixedly installed on the dust collector 101 and is used for the exhaust operation of the dust collector 101.

[0034] like Figure 4As shown, the wet dust collection unit 2 also includes: an oil mist lubricator 204, a rotary gearbox 205, and a proportional valve 206. The oil mist lubricator 204 is installed on the mining drilling rig and is connected to the water pump 202 via a pipe. The oil mist lubricator 204 is used to lubricate the gears and bearings in the rotary gearbox 205 to ensure its normal operation. The oil mist lubricates the impactor and drill rod threads. The rotary gearbox 205 is installed on the mining drilling rig and is connected to the oil mist lubricator 204 via a pipe. The rotary gearbox 205 converts high-speed, low-torque power into low-speed, high-torque power through its internal gear transmission system, driving the drill rod and drill bit to rotate, thus realizing drilling operations. Simultaneously, the dry dust collection unit 0095 can also reverse the rotary head to facilitate drill retraction and tool replacement.

[0035] like Figure 4 As shown, the oil mist lubricator 204 and the rotary gearbox 205 work together to significantly extend the service life of the drill bit and filter element; depending on the dust conditions of the working conditions, the opening degree of the second hydraulic motor (203) is controlled by the proportional valve (206) to control the output flow of the water pump (202), thereby changing the amount of water mist required, reducing oil consumption, and thus achieving energy saving.

[0036] like Figure 4 As shown, a nozzle is installed at the lower position of the rotary gearbox 205.

[0037] The second hydraulic motor 203 drives the water pump 202 to draw water out of the water tank 201 and convert it into a high-pressure water flow. The water flow size is controlled by adjusting the pressure of the second hydraulic motor 203, the water pump 202, and the high-pressure gas pressure. The water flow is atomized and mixed with compressed gas by the nozzle. It enters the bottom of the borehole and mixes with the dust to capture and adsorb fine dust particles, causing them to agglomerate into larger particles and be discharged from the borehole with the exhaust gas generated during drilling.

[0038] The exhaust gas enters the dust collection hood 105, where it is subjected to secondary dust suppression by the water dust removal nozzles 108 installed on the dust collection hood 105.

[0039] Then, the dust collector 101 provides power through the first hydraulic motor 102 installed on it to form a negative pressure, which draws the dust-laden exhaust gas into the pipe I 106 and discharges the larger dust particles through the cyclone barrel 104. The fine dust enters the pipe II 107 and is filtered and discharged by the dust collector 101, thus achieving the third dust reduction.

[0040] The dust particles discharged through the water dust removal nozzles 109 on both sides of the slag discharge port of the dust collector 101 are subjected to a fourth dust reduction, thereby achieving the purpose of dust removal.

[0041] Second embodiment: like Figure 5 As shown, water dust removal nozzles 109 are installed on the slag discharge slope of the dust collector 101.

[0042] Because the entire system has a large water demand, which would affect drilling efficiency and economic benefits, the design was changed. The water dust removal nozzles 108 on the dust collection hood 105 and the water dust removal nozzles 109 on both sides of the slag discharge port of the dust collector 101 were removed. Instead, water dust removal nozzles 109 were installed on the slag discharge slope of the dust collector 101 for dust removal.

[0043] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-free dust removal system for mining drilling rigs, characterized in that, It includes a dry dust collection unit (1) and a wet dust collection unit (2). The dry dust removal unit (1) includes: a dust collector (101), a first hydraulic motor (102), a cyclone separator (104), a dust collection hood (105), pipe I (106), pipe II (107), and a water dust removal nozzle (109); the dust collector (101) is fixedly installed on the mining drilling rig, and the lower end of the dust collector (101) is provided with a slag discharge port; the first hydraulic motor (102) is fixedly installed on the dust collector (101); the cyclone separator (104) is installed on the mining drilling rig; the dust collection hood (105) is fixedly installed on the first hydraulic motor (106); the first hydraulic motor (107) is installed on the first hydraulic motor (108); the first hydraulic motor (109) is fixedly installed on the first hydraulic motor (101); the first hydraulic motor (102) is installed on the first hydraulic motor (104); the first hydraulic motor (105) is fixedly installed on the first hydraulic motor (106); the first hydraulic motor (106) is installed on the first hydraulic motor (107); the first hydraulic motor (108) is fixedly installed on the first hydraulic motor (109); the first hydraulic motor (102) is fixedly installed on the first hydraulic motor (106); the first hydraulic motor (104) is installed on the first hydraulic motor (109); the first hydraulic motor (105) is fixedly installed on the first hydraulic motor (106); the first hydraulic motor (106) is fixedly installed on the first hydraulic motor (107); the first hydraulic motor (108) is fixedly installed on the first hydraulic motor (109); the first hydraulic motor (102) is fixedly installed on the first hydraulic motor (106); the first hydraulic motor (104 ... 5) Installed at the drilled hole; one end of pipe I (106) is fixedly connected to the dust collection hood (105), and the other end of pipe I (106) is fixedly connected to the side inlet of the cyclone barrel (104); one end of pipe II (107) is fixedly connected to the upper outlet of the cyclone barrel (104), and the other end of pipe II (107) is fixedly connected to the side inlet of the dust collector (101); there are two water dust removal nozzles (109), and the two water dust removal nozzles (109) are installed on both sides of the slag discharge port of the dust collector (101); The wet dust removal unit (2) includes: a water tank (201), a water pump (202), and a second hydraulic motor (203); the water tank (201) is fixedly installed on the upper end face of the dust collector (101) by screws and nuts; the water pump (202) is fixedly installed on the mining drilling rig, and the water pump (202) is connected to the water tank (201) by a pipe; the second hydraulic motor (203) is fixedly installed on the side of the water pump (202).

2. The dust-free dust removal system for mining drilling rigs according to claim 1, characterized in that, The dust collection hood (105) is equipped with a water dust removal nozzle (108) on its side, which performs secondary dust removal.

3. The dust-free dust removal system for mining drilling rigs according to claim 1, characterized in that, The water tank (201) has a capacity of 160L, and the main body is made of aluminum-magnesium alloy, while the accessories are made of PVC, rubber and 304 stainless steel.

4. The dust-free dust removal system for mining drilling rigs according to claim 1, characterized in that, The water tank (201) is heated by the high-temperature exhaust gas from the diesel engine.

5. The dust-free dust removal system for mining drilling rigs according to claim 1, characterized in that, The dry dust removal unit (1) further includes an exhaust port (103); the exhaust port (103) is fixedly installed on the dust collector (101).

6. The dust-free dust removal system for mining drilling rigs according to claim 1, characterized in that, The wet dust removal unit (2) further includes: an oil mist lubricator (204), a rotary gearbox (205), and a proportional valve (206); the oil mist lubricator (204) is installed on the mining drilling rig and is connected to the water pump (202) through a pipe; the rotary gearbox (205) is installed on the mining drilling rig and is connected to the oil mist lubricator (204) through a pipe; the proportional valve (206) is connected to the second hydraulic motor (203) through a pipe.

7. A dust-free dust removal system for mining drilling rigs according to claim 6, characterized in that, The oil mist lubricator (204) and the rotary gearbox (205) are used together; the proportional valve (206) controls the opening of the second hydraulic motor (203), controls the output flow of the water pump (202), and changes the amount of water mist required.

8. A dust-free dust removal system for mining drilling rigs according to claim 6, characterized in that, A nozzle is installed at the lower position of the rotary gearbox (205).

9. A dust-free dust removal system for mining drilling rigs according to claim 1, characterized in that, The dust collector (101) has a water dust removal nozzle (109) installed on the slag discharge slope.

Images