Mining large-range adjustable injection type negative pressure dust removal equipment

Abstract

The invention discloses mining large-range adjustable injection type negative pressure dust removal equipment which comprises an atomization assembly used for generating water mist, the atomization assembly is arranged at the front end of a barrel, the barrel is arranged on a supporting assembly through an adjusting assembly, and the adjusting assembly is used for achieving lifting, front-back inclination and left-right inclination adjustment of the barrel relative to the supporting assembly. An air supply assembly is arranged on the supporting assembly, and the transverse length of the transverse cross section of the front end of the barrel is larger than the longitudinal length. The shape of the air outlet of the barrel is changed, compared with the prior art, the transverse size is increased, the transverse atomization range is enlarged, the effective range of atomized liquid drops resisting transverse wind in the open air environment is guaranteed, and therefore the atomization range of the whole equipment is enlarged; the adjusting assembly capable of adjusting lifting, front-back inclination and left-right inclination is further arranged, the position of the barrel can be adjusted conveniently, the adjusting assembly is combined with the structure of the air outlet of the barrel, the transverse atomization range of the whole equipment can be enlarged, and the resistance of the whole equipment to natural transverse wind is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of dust suppression, and in particular relates to a large-range adjustable ejection-type negative pressure dust removal device for mining. Background Art

[0002] The coal mining work in open-pit coal mines is carried out directly in the surface atmosphere. A large amount of dust is generated in the process of blasting and refueling, which directly pollutes the environment around the mining site. Because it is open-pit, the dust source is seriously affected by factors such as natural wind, and the dispersion range is wide and the affected area is large. Therefore, people often use fog cannons to achieve artificial dust reduction and reduce dust hazards during the mining process.

[0003] The working principle of the fog cannon is to first use a high-pressure water pump to transport water to the atomizing nozzle, and then the atomizing nozzle sprays the water out in atomized form, and then use the wind from the wind tube to send the water mist to a farther distance, thereby increasing its atomization range. The dust in its atomization range condenses with the water mist to achieve the effect of dust reduction.

[0004] When working in an open-air environment, the dust reduction effect of the fog cannon will be weakened due to the influence of natural wind. Most existing fog cannons use circular air outlets, which cannot resist the influence of natural crosswinds well, so that they cannot perform targeted dust reduction in situations where the horizontal dust generation range is large. Summary of the invention

[0005] The present invention proposes a large-range adjustable induced negative pressure dust removal equipment for mining, which can not only ensure the longitudinal atomization coverage, but also improve the lateral atomization coverage of the fog cannon and increase the air outlet of the wind tube, while satisfying the lifting and rearward and backward inclination of the fog cannon, and has strong overall practicality.

[0006] To this end, the technical solution adopted by the present invention is: a large-range adjustable induced negative pressure dust removal equipment for mining, comprising an atomizing assembly for generating water mist, the atomizing assembly is arranged at the front end of a cylinder, the cylinder is arranged on a supporting assembly through an adjusting assembly, the adjusting assembly is used to realize the lifting, front and rear tilting and left and right tilting adjustment of the cylinder relative to the supporting assembly, and an air supply assembly is arranged on the supporting assembly;

[0007] The lateral length of the cross-section at the front end of the cylinder is greater than the longitudinal length, and an air inlet for the output air of the air supply component is arranged in the middle of the cylinder, and a first air duct for the wind in the air supply component to pass through is arranged in the cylinder, and a second air duct is arranged in the cylinder from front to back, and the end of the first air duct is connected with the middle of the second air duct, when the wind of the air supply component enters the second air duct from the first air duct, negative pressure will be formed, so that the air outside the rear end of the cylinder enters the cylinder and is blown out along the second air duct.

[0008] As a preferred embodiment of the above scheme, the cylinder includes an air outlet section, a transition section, a negative pressure section and an introduction section which are arranged in sequence from front to back, the air outlet section is arranged in a rectangular or elliptical shape, the negative pressure section and the introduction section are both cylindrical in shape, the negative pressure section is provided with a middle conical hole which constitutes the middle part of the second air duct and is larger in the front and smaller in the rear, the air inlet is arranged on the negative pressure section, the first air duct is arranged between the inner conical surface and the outer cylindrical surface, the introduction section is provided with a rear conical hole which constitutes the rear end of the second air duct and is smaller in the front and larger in the rear, a second narrow opening which forms a negative pressure when the air supply enters the second air duct from the first air duct is arranged between the rear conical hole and the middle conical hole, and the second narrow opening is arranged inclined forward.

[0009] Further preferably, a first narrow opening is provided in the first air duct at the rear end of the air inlet, and the first narrow opening is formed by the rear end of the inner conical surface of the negative pressure section being bent outward and the outer cylindrical surface of the negative pressure section.

[0010] Further preferably, the atomization assembly includes a double annular water pipe arranged at the front end of the cylinder, a plurality of atomization nozzles are arranged at intervals on the inner and outer rings of the double annular water pipe, the water inlet end of the double annular water pipe is connected to a water tank arranged on the support assembly through a water supply pipeline, the water supply pipeline includes a fixed water pipe and a telescopic water pipe, and a water pump is arranged between the fixed water pipe and the water tank.

[0011] Further preferably, the adjustment component includes two adjustment plates spaced apart on the left and right and at least two groups of adjustment parts spaced apart on the front and back, each group of adjustment parts has two adjustment cylinders spaced apart on the left and right, the adjustment plate on each side is arranged at the telescopic end of the adjustment cylinder on the corresponding side, and the telescopic end of each adjustment cylinder is connected to the adjustment plate through a ball joint, and the two adjustment plates are arranged on the left and right sides of the cylinder through corresponding fixing components.

[0012] Further preferably, the fixing assembly comprises at least two connecting shafts spaced apart from each other on the left and right sides of the cylinder, and a fixing seat is provided on the adjustment plate corresponding to each connecting shaft for the connecting shaft to pass through and then be fixed.

[0013] Further preferably, the supporting assembly includes a base, a rotating assembly is arranged on the base, a rotating seat is arranged at the rotating end of the rotating assembly, and the adjusting assembly and the air supply assembly are arranged on the rotating seat.

[0014] Further preferably, the air supply assembly includes a motor arranged on a supporting assembly, a fan is arranged at the output end of the motor, the motor outer cover is provided with a motor casing, and the fan is also located in the motor casing, a joint is provided at the air inlet, a telescopic air duct for air to pass through is provided between the joint and the motor casing, and an air inlet channel for air to pass through is provided on the motor casing.

[0015] Further preferably, the air inlet channel is provided with an air inlet fence and an air inlet filter for preventing dust from entering, one end of the air inlet fence is hinged to the motor housing, and the other side is clamped to the motor housing, and the upper and lower ends of the air inlet fence are provided with sliding grooves for the air inlet filter to be clamped into.

[0016] Further preferably, a shield is provided at the rear end of the cylinder for preventing larger objects from entering the second air duct.

[0017] Beneficial effects of the present invention:

[0018] 1) The shape of the air outlet of the cylinder is changed. Compared with the existing technology, the lateral size is increased, which increases the lateral atomization range and ensures the effective range of the atomized droplets to resist crosswind in an open air environment, thereby increasing the atomization range of the entire equipment.

[0019] 2) A second air duct is provided which runs through the cylinder from front to back, and negative pressure is formed when the first air duct enters the second air duct, so that it can suck air to the rear end of the cylinder; sucking air from the rear of the cylinder will not only increase the air output of the duct, but also drive the mist droplets to move in the direction of the wind flow, thereby increasing the atomization range of the entire equipment, and also has the effect of secondary dust reduction, and the air supply component is located outside the cylinder, which is convenient for the maintenance of the air supply component.

[0020] 3) An adjustment component with lifting, front and rear tilting and left and right tilting is also provided to facilitate the adjustment of the position of the cylinder. Combined with the structure of the cylinder air outlet, it can further increase the lateral atomization range of the entire equipment and increase its resistance to natural crosswinds. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 For the purpose of illustrating the present invention Figure 1 .

[0022] Figure 2 For the purpose of illustrating the present invention Figure 2 .

[0023] Figure 3 It is a schematic diagram of the cylinder in the present invention.

[0024] Figure markings: atomizing assembly-100, double annular water pipe-110, atomizing nozzle-120, water supply pipeline-130, water tank-140, cylinder-200, air inlet-210, first air duct-220, second air duct-230, air outlet section-240, transition section-250, negative pressure section-260, middle conical hole-261, injection section-270, rear conical hole-271, second Narrow mouth 280, first narrow mouth 290, adjustment component 300, adjustment plate 310, adjustment cylinder 320, ball joint 330, connecting shaft 340, fixing seat 350, supporting component 400, base 410, rotating component 420, rotating seat 430, air supply component 500, motor 510, fan 520, motor housing 530, shield 600. DETAILED DESCRIPTION

[0025] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0026] like Figure 1-3 As shown, a large-range adjustable induced negative pressure dust removal equipment for mining is mainly composed of an atomizing assembly 100, a cylinder 200, an adjusting assembly 300, a supporting assembly 400, and an air supply assembly 500. Among them, the atomizing assembly 100 is used to generate water mist, and the atomizing assembly 100 is arranged at the front end of the cylinder 200, the cylinder 200 is arranged on the supporting assembly 400 through the adjusting assembly 300, and the adjusting assembly 300 is used to achieve the lifting, front and rear tilting and left and right tilting adjustment of the cylinder 200 relative to the supporting assembly 400, the cylinder 200 is used to supply air, and the supporting assembly 400 is provided with an air supply assembly 500, and the air supply assembly is used to achieve the generation of wind.

[0027] In order to achieve that the wind after passing through the cylinder can resist natural crosswind, the horizontal length of the cross section of the front end of the cylinder 200 is greater than the longitudinal length, and an air inlet 210 for the output wind of the air supply component 500 is provided in the middle of the cylinder 200, and a first air duct 220 for the wind in the air supply component 500 to pass through is provided in the cylinder 200, and a second air duct 230 is provided in the cylinder 200 from front to back, and the end of the first air duct 220 is connected to the middle of the second air duct 230. When the wind of the air supply component 500 enters the second air duct 230 from the first air duct 220, negative pressure will be formed, so that the air outside the rear end of the cylinder 200 enters the cylinder 200 and blows out along the second air duct 230, so that it can absorb wind to the rear end of the cylinder, thereby increasing the air output of the wind cylinder, and then driving the mist droplets to move in the direction of the wind flow, increasing the atomization range of the entire device.

[0028] The cylinder 200 includes an air outlet section 240, a transition section 250, a negative pressure section 260 and an ejection section 270 which are arranged in sequence from front to back. The air outlet section 240 is arranged in a rectangular or elliptical shape, preferably, the negative pressure section 260 and the ejection section 270 are both cylindrical in shape, and the axes of the negative pressure section 260 and the ejection section 270 coincide, and the transition section is used for the transition between the air outlet section and the negative pressure section.

[0029] To facilitate the formation of negative pressure, a middle conical hole 261 which constitutes the middle part of the second air duct 230 and is larger at the front and smaller at the rear is provided in the negative pressure section 260, and the air inlet 210 is provided on the negative pressure section 260, and the first air duct 220 is provided between the inner conical surface and the outer cylindrical surface, that is, the first air duct is an annular cavity between the inner conical surface and the outer cylindrical surface on the negative pressure section, and a rear conical hole 271 which constitutes the rear end of the second air duct 230 and is smaller at the front and larger at the rear is provided in the induced section 270, and a second narrow opening 280 which forms a negative pressure when the air enters the second air duct 230 from the first air duct 220 is provided between the rear conical hole 271 and the middle conical hole 261, and the second narrow opening 280 is provided to be inclined forward to ensure that the wind moves forward.

[0030] Preferably, a first narrow opening 290 is provided in the first air duct 220 at the rear end of the air inlet, and the first narrow opening 290 is formed by the rear end of the inner conical surface of the negative pressure section 260 being bent outward and combined with the outer cylindrical surface of the negative pressure section 260, so that there is negative pressure when the wind is in the first air duct, thereby ensuring that the wind can smoothly enter the second narrow opening from the air inlet.

[0031] In order to prevent larger impurities from entering the second air duct and clogging it, a shield 600 is provided at the rear end of the cylinder 200 to prevent larger objects from entering the second air duct.

[0032] The atomizing assembly 100 includes a double annular water pipe 110 disposed at the front end of the cylinder 200, and a plurality of atomizing nozzles 120 are arranged at intervals on the inner and outer rings of the double annular water pipe 110, and the water inlet end of the double annular water pipe 110 is connected to a water tank 140 disposed on the supporting assembly 400 through a water supply pipeline 130. Since the cylinder can move, the water supply pipeline 130 includes a fixed water pipe and a telescopic water pipe, and a water pump is arranged between the fixed water pipe and the water tank.

[0033] The adjustment assembly 300 includes two adjustment plates 310 arranged at intervals on the left and right and at least two groups of adjustment members arranged at intervals on the front and back. Each group of adjustment members is arranged at intervals on the left and right with two adjustment cylinders 320. The adjustment plates 310 on each side are arranged at the telescopic end of the corresponding adjustment cylinder 320, and the telescopic end of each adjustment cylinder 320 is connected to the adjustment plate 310 through a ball joint 330. The two adjustment plates 310 are arranged on the left and right sides of the cylinder 200 through corresponding fixing components. Among them, the adjustment cylinder can be an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, that is, other linear moving mechanisms, the ball joint can also be a universal joint, etc., and the adjustment cylinder can also use a manually adjustable telescopic rod.

[0034] When the heights of the adjusting cylinders on the left and right sides are different, the cylinder can be tilted left and right. When the heights of the front and rear adjusting rods are different, the cylinder can be tilted front and back. The height of the cylinder can be adjusted by adjusting the height of the adjusting cylinder.

[0035] The specific structure of the fixing assembly includes at least two connecting shafts 340 arranged at intervals on the left and right sides of the cylinder 200, and a fixing seat 350 for the connecting shaft to pass through and fix is ​​arranged on the adjustment plate 310 corresponding to each connecting shaft 340. Of course, the adjustment plate can also be directly welded on both sides of the cylinder.

[0036] The support assembly 400 includes a base 410, on which a rotating assembly 420 is arranged, a rotating seat 430 is arranged at the rotating end of the rotating assembly 420, and the adjustment assembly 300 and the air supply assembly 500 are arranged on the rotating seat 430, wherein the rotating assembly is existing technology and can be a motor and a turntable.

[0037] The air supply assembly 500 includes a motor 510 disposed on the support assembly 400, a fan 520 is disposed at the output end of the motor 510, a motor housing 530 is disposed on the outer cover of the motor 510, and the fan 520 is also located in the motor housing 530, and an air inlet passage for air to pass through is disposed on the motor housing 530. A joint is disposed at the air inlet 210, and a telescopic air duct for air to pass through is disposed between the joint and the motor housing 530. Of course, the combination of the motor and the fan can also be a blower or other mechanism.

[0038] In order to protect the motor, an air inlet fence and an air inlet filter are provided on the air inlet channel to prevent dust from entering. One end of the air inlet fence is hinged on the motor housing, and the other side is clamped on the motor housing. Both the upper and lower ends of the air inlet fence are provided with sliding grooves for the air inlet filter to be clamped in. Of course, the air inlet channel can also be set as a plurality of small air inlet holes.

[0039] Preferably, an electric control box with a control system is also provided, and the electric control box is arranged on the support assembly, and the control system is electrically connected to the rotating assembly, the water pump, the telescopic cylinder, and the motor, and the control system adopts a structure with information receiving, information sending, information processing, etc. in the prior art. Preferably, a battery and a control panel with an interactive function are provided in the electric control box, so that the water pump can be turned on and off, the motor can be started, the telescopic cylinder can be controlled, and the rotating assembly can be rotated.

Claims

1. A large-range adjustable ejection type negative pressure dust removal equipment for mining, characterized by: The invention comprises an atomizing assembly (100) for generating water mist, wherein the atomizing assembly (100) is arranged at the front end of a cylinder (200), and the cylinder (200) is arranged on a supporting assembly (400) via an adjusting assembly (300). The adjusting assembly (300) is used to adjust the cylinder (200) relative to the supporting assembly (400) in terms of lifting, front-back tilting, and left-right tilting. The supporting assembly (400) is provided with an air supply assembly (500); The transverse length of the cross-section of the front end of the cylinder (200) is greater than the longitudinal length. The middle part of the cylinder (200) is provided with an air inlet (210) for the air output by the air supply component (500) to enter. The cylinder (200) is provided with a first air duct (220) for the air in the air supply component (500) to pass through. The cylinder (200) is provided with a second air duct (230) that passes through the cylinder (200) from front to back, and the end of the first air duct (220) is connected to the middle part of the second air duct (230). When the air of the air supply component (500) enters the second air duct (230) from the first air duct (220), negative pressure is formed, so that the air outside the rear end of the cylinder (200) enters the cylinder (200) and is blown out along the second air duct (230).

2. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 1, it is characterized by: The cylinder (200) comprises an air outlet section (240), a transition section (250), a negative pressure section (260) and an ejection section (270) which are arranged in sequence from front to back. The air outlet section (240) is arranged in a rectangular or elliptical shape. The negative pressure section (260) and the ejection section (270) are both cylindrical in shape. A middle conical hole (261) which forms the middle part of the second air duct (230) and is larger in the front and smaller in the rear is arranged in the negative pressure section (260). The air inlet (210) is arranged in the negative pressure section. (260), the first air duct (220) is arranged between the inner conical surface and the outer cylindrical surface, the introduction section (270) is provided with a rear conical hole (271) which constitutes the rear end of the second air duct (230) and is smaller in the front and larger in the rear, and a second narrow opening (280) is provided between the rear conical hole (271) and the middle conical hole (261) to form a negative pressure when air enters the second air duct (230) from the first air duct (220), and the second narrow opening (280) is arranged to be inclined forward.

3. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 2, it is characterized in that: The first air duct (220) is provided with a first narrow opening (290) located at the rear end of the air inlet, and the first narrow opening (290) is formed by the rear end of the inner conical surface of the negative pressure section (260) being bent outwards and the outer cylindrical surface of the negative pressure section (260).

4. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 1, it is characterized by: The atomizing assembly (100) comprises a double annular water pipe (110) arranged at the front end of a cylinder (200); a plurality of atomizing nozzles (120) are arranged at intervals on the inner and outer rings of the double annular water pipe (110); a water inlet end of the double annular water pipe (110) is connected to a water tank (140) arranged on a supporting assembly (400) via a water supply pipeline (130); the water supply pipeline (130) comprises a fixed water pipe and a telescopic water pipe, and a water pump is arranged between the fixed water pipe and the water tank.

5. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 1, it is characterized by: The adjustment assembly (300) comprises two adjustment plates (310) arranged at intervals on the left and right and at least two groups of adjustment members arranged at intervals on the front and back, each group of adjustment members having two adjustment cylinders (320) arranged at intervals on the left and right, the adjustment plate (310) on each side being arranged at the telescopic end of the adjustment cylinder (320) on the corresponding side, and the telescopic end of each adjustment cylinder (320) being connected to the adjustment plate (310) via a ball joint (330), and the two adjustment plates (310) being arranged on the left and right sides of the cylinder (200) via corresponding fixing assemblies.

6. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 5, it is characterized in that: The fixing assembly comprises at least two connecting shafts (340) arranged at intervals on the left and right sides of the cylinder (200), and the adjusting plate (310) is provided with a fixing seat (350) for the connecting shaft to pass through and be fixed thereto, corresponding to each connecting shaft (340).

7. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 1, it is characterized by: The support assembly (400) comprises a base (410), a rotating assembly (420) is arranged on the base (410), a rotating seat (430) is arranged at the rotating end of the rotating assembly (420), and the adjustment assembly (300) and the air supply assembly (500) are arranged on the rotating seat (430).

8. According to the mine-used large-range adjustable ejection type negative pressure dust removal equipment as described in claim 1, it is characterized by: The air supply component (500) comprises a motor (510) arranged on a support component (400); a fan (520) is arranged at the output end of the motor (510); a motor housing (530) is arranged on the outer cover of the motor (510); and the fan (520) is also located in the motor housing (530); a joint is arranged at the air inlet (210); a telescopic air duct for air to pass through is arranged between the joint and the motor housing (530); and an air inlet channel for air to pass through is arranged on the motor housing (530).

9. The mine-used large-range adjustable ejection type negative pressure dust removal equipment according to claim 8 is characterized in that: The air inlet channel is provided with an air inlet fence and an air inlet filter for preventing dust from entering. One end of the air inlet fence is hinged on the motor housing, and the other side is clamped on the motor housing. The upper and lower ends of the air inlet fence are provided with sliding grooves for the air inlet filter to be clamped.

10. The mine-used large-range adjustable ejection type negative pressure dust removal equipment according to claim 1 is characterized in that: The rear end of the cylinder (200) is provided with a shield (600) for preventing larger objects from entering the second air duct.

Images