Dust diffusion preventing device for hard rock blasting

Abstract

The utility model relates to the technical field of dust removers, and discloses a hard rock blasting dust diffusion prevention device which comprises a dust removal chamber, a water tank fixedly installed on the right side of the upper end of the dust removal chamber, a conveying pipe fixedly arranged on the left side of the water tank, a dust collection cover fixedly connected to the end face of the conveying pipe, and a dust removal bag fixedly installed on the lower side of a vibration frame. The dust removal bags are connected through a conveying pipe through pipe, gas penetrates through the filter bags to block dust on the inner surfaces of the filter bags, a spray head is fixedly installed on the lower surface of the vibration frame, the spray head adsorbs air containing dust particles through pressure drop, polymerized sludge is formed and then descends, and a vibrator is fixedly arranged in the middle of the vibration frame. According to the utility model, the dust collection cover is arranged to suck air containing dust particles, the dust collection cover is used for dust collection in the dust collection bag so as to discharge purified gas, and dust which is not purified and is continuously in a suspended state is atomized in the internal environment of the dust collection chamber, so that the effect of effective dust collection by combining a bag dust collection technology and a wet dust collection technology is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a device for preventing dust diffusion in hard rock blasting. Background Art

[0002] A dust collector is a device that removes or reduces the fly ash content in flue gas. There are various types of dust removal devices, the most common ones are cloud mist dust suppression, wet dust collection and bag dust removal. Various dust removal technologies have their own advantages, but their shortcomings are also more prominent; wet dust removal is mainly limited by the nature of dust, and dry dust removal occupies a large area and has a high investment cost; it is widely used in chemical, construction, mining, textile industry and other industries.

[0003] 1. When the dust generated by directional blasting in the construction and mining industries is raised, there is dust diffusion. Even if there is an airflow channel to guide, the dust collection equipment relies on its own sealing to absorb the dust, and there is still a state of fine particles suspended in the state of incomplete filtration. Therefore, in addition to collecting the filtered dust, it also needs to be effectively adsorbed and accumulated into sludge to be collected, so that the captured dust will not be raised into the air again for further treatment;

[0004] 2. After the blast, dust is raised everywhere. The method of sucking dust from the air can only deal with the dust in the air, but fails to suppress dust on a large scale. Reducing the airflow to drive the dust flow, making the dust and water mist condense into agglomerates, and letting gravity bring the dust mixture down is one of the most effective ways to remove dust. Utility Model Content

[0005] In view of the shortcomings of the existing dust removal technology, the utility model provides a device for preventing dust diffusion in hard rock blasting, which has the advantages of further effectively removing dust and suppressing dust scattering, and solves the problems described in the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A device for preventing dust diffusion during hard rock blasting comprises a dust removal chamber, a water tank is fixedly installed on the right side of the upper end of the dust removal chamber, a delivery pipe is fixedly installed on the left side of the water tank, a dust collecting hood is fixedly connected to the end face of the delivery pipe, a vibration frame is movably installed on the top of the interior of the dust removal chamber, a dust removal bag is fixedly installed on the lower side of the vibration frame, a nozzle is fixedly installed on the lower surface of the vibration frame, a vibrator is fixedly installed in the middle position of the vibration frame, a dehumidifier is fixedly connected to the dust removal chamber through a pipeline, and an exhaust pipe is fixedly installed on the upper end of the dehumidifier.

[0008] Preferably, a scattering spray mechanism is fixedly installed on the left side of the upper end of the dust removal chamber, and the scattering spray mechanism includes a slide plate, a half gear and a telescopic rod. The half gear is rotatably connected to the inner surface of the dust removal chamber, and the output end of the telescopic rod is fixedly connected to a rack, which slides on the inner surface of the slide plate, and the outer surface of the half gear is meshingly connected to the surface of the slide plate. A hinge seat is fixedly provided on the upper end of the half gear, and the hinge seat is hinged to the atomizing nozzle. The lower end of the atomizing nozzle is movably installed inside the dust removal chamber through a hose.

[0009] Preferably, a dust outlet is fixedly provided at the bottom of the dust removal chamber, a discharge mechanism is fixedly connected to the lower end surface of the dust outlet, and a collection box is fixedly provided at the lower end of the discharge mechanism.

[0010] Preferably, the discharge mechanism includes a motor, a protective cover and a dust exhaust pipe, the inner wall of the dust exhaust pipe is fixedly connected to the protective cover, the output end of the motor passes through the inner cavity of the protective cover and is fixedly provided with a second bevel gear, the inner cavity on the upper side of the protective cover is rotatably connected to a stirring bracket, the lower end of the stirring bracket is fixedly connected to a first bevel gear, and the surface of the first bevel gear is meshingly connected to the surface of the protective cover.

[0011] Preferably, a water pump is fixedly provided at the upper end of the dust removal chamber, the left side of the water pump is fixedly welded to the water tank, and the right side of the water pump passes through the interior of the dust removal chamber through a pipeline and is fixedly installed with the spray mechanism and the nozzle respectively.

[0012] Preferably, a sealing strip is fixedly connected to the lower side of the dust collecting hood, and a rain shield is fixedly connected to the upper end of the exhaust duct.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the dust bag is connected to the dust bag through the conveying pipe, and the gas passes through the filter bag to block the dust inside the filter bag. When there is a lot of dust in the dust bag, which affects the isolation of dust and exhaust of air, the vibrator drives the vibration of the vibration frame to settle the dust on the inner wall of the dust bag. The mist sprayed by the nozzle and the depressurized environment of the dust removal chamber adsorb the dust particles in the air and further settle into sludge. The sludge formed by the dust aggregation flows into the collection box at the bottom through the small-caliber discharge mechanism for storage, realizing the combination of bag dust removal technology and wet dust collection technology to effectively remove dust;

[0015] 2. In the utility model, the water mist dust-proof wall formed by the periodic swing of the atomizing nozzle can suppress the dust from aggregating into a mixture and settling down over a large range, thereby achieving the effect of suppressing the dust over a large range and allowing the remaining dust to be sucked into the dust collecting hood for further treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic plan view of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the dust removal chamber of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the spray mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the discharge mechanism of the utility model.

[0020] In the figure: 1. dust removal chamber; 2. water tank; 3. dust hood; 4. conveying pipe; 5. vibration frame; 6. dust bag; 7. nozzle; 8. vibrator; 9. dehumidifier; 10. exhaust duct; 11. water pump; 12. spray mechanism; 121. slide plate; 122. half gear; 123. rack; 124. hinged seat; 125. telescopic rod; 126. atomizing nozzle; 13. dust outlet; 14. discharge mechanism; 141. motor; 142. stirring bracket; 143. first bevel gear; 144. second bevel gear; 145. protective cover; 146. dust exhaust pipe; 15. collection box; 16. sealing strip; 17. rain shelter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-Figure 4, a device for preventing dust diffusion in hard rock blasting, comprising a dust removal chamber 1, a water tank 2 is fixedly installed on the right side of the upper end of the dust removal chamber 1, the water tank 2 may have a port for continuous injection and storage of a large amount of water, a delivery pipe 4 is fixedly arranged on the left side of the water tank 2, a dust collecting hood 3 is fixedly connected to the end face of the delivery pipe 4, the dust collecting hood 3 is used to absorb air containing dust, a vibration frame 5 is movably installed on the top of the dust removal chamber 1, a dust bag 6 is fixedly installed on the lower side of the vibration frame 5, the dust bag 6 is connected through the delivery pipe 4 through the pipe, the gas passes through the filter bag to block the dust on the inner surface of the filter bag, a nozzle 7 is fixedly installed on the lower surface of the vibration frame 5, the nozzle 7 absorbs the air containing dust particles through the pressure drop, forms aggregated sludge and then descends, a vibrator 8 is fixedly arranged in the middle position of the vibration frame 5, the vibrator 8 can accelerate the dust attached to the inside of the dust bag 6 to fall , because the vibrator 8 drives the vibration frame 5 to shake the dust on the dust bag 6, and the nozzle 7 is located in the middle position of the distance between the vibrator 8 and the dust bag 6, the dust chamber 1 is fixedly connected with a dehumidifier 9 through a pipeline, and an exhaust pipe 10 is fixedly arranged on the upper end of the dehumidifier 9. The air containing dust particles is sucked into the dust bag 6 by setting a dust collecting hood 3 to discharge the purified gas through bag dust removal. Even if there is too much dust, the dust on the inner wall of the dust bag 6 will settle down due to the vibration of the vibrator 8. The dust that is not purified but continues to be suspended in the state is atomized by the nozzle 7. The internal environment of the dust removal chamber 1 is formed by wet dust collection droplets adsorbing dust particles and settling down into sludge. The dehumidifier 9 is set to remove the heavier water in the purified air and finally discharge it, so as to achieve the effect of effective dust removal by combining bag dust removal technology and wet dust collection technology;

[0024] A dust outlet 13 is fixedly provided at the bottom of the dust removal chamber 1, a discharge mechanism 14 is fixedly connected to the lower end surface of the dust outlet 13, and a collection box 15 is fixedly provided at the lower end of the discharge mechanism 14; by providing the inclined dust outlet 13, the sludge containing dust that has settled down is finally collected and stored inside the collection box 15, so as to achieve the effect of centralized storage of dust suspended in the air;

[0025] The discharge mechanism 14 includes a motor 141, a protective sleeve 145 and a dust exhaust pipe 146. The inner wall of the dust exhaust pipe 146 is fixedly connected to the protective sleeve 145. The output end of the motor 141 passes through the inner cavity of the protective sleeve 145 and is fixedly provided with a second bevel gear 144. The inner cavity on the upper side of the protective sleeve 145 is rotatably connected to a stirring bracket 142. The lower end of the stirring bracket 142 is fixedly connected to a first bevel gear 143. The surface of the first bevel gear 143 is meshed with the surface of the protective sleeve 145. By setting a transmission mechanism of the discharge mechanism 14, the stirring bracket 142 keeps the sludge blocked in the dust exhaust pipe 146 from blocking the pipeline, so as to ensure that the sludge mixed with dust does not block the small-diameter channel.

[0026] A water pump 11 is fixedly installed at the upper end of the dust removal chamber 1, the left side of the water pump 11 is fixedly welded to the water tank 2, and the right side of the water pump 11 passes through the interior of the dust removal chamber 1 through a pipeline and is fixedly installed with the spray mechanism 12 and the nozzle 7 respectively. By setting the water pump 11, the effect of water supply can be achieved for components that need to use water to form a spray or wet environment.

[0027] Embodiment 2:

[0028] See also Figure 1-Figure 4 A spray mechanism 12 is fixedly installed on the left side of the upper end of the dust removal chamber 1. The spray mechanism 12 includes a slide plate 121, a half gear 122 and a telescopic rod 125. The half gear 122 is rotatably connected to the inner surface of the dust removal chamber 1. The output end of the telescopic rod 125 is fixedly connected to a rack 123. The rack 123 slides on the inner surface of the slide plate 121. The outer surface of the half gear 122 is meshed with the surface of the slide plate 121. As the telescopic rod 125 drives the rack 123 to move, the half gear 122 rotates. The reciprocating swing at a certain angle is a periodic motion. The upper end of the half gear 122 is fixedly provided with an articulated seat 124, which is hinged to the atomizing nozzle 126. The lower end of the atomizing nozzle 126 is movably installed with the inside of the dust removal chamber 1 through a hose. By setting the atomizing nozzle 126 to spray water mist at a long distance to form a high-efficiency cloud dust-proof wall, the dust and water mist are aggregated into agglomerates and then settled down, so as to achieve the effect of suppressing dust in a large range and the remaining dust is sucked into the dust collecting hood 3 for further treatment;

[0029] A sealing strip 16 is fixedly connected to the lower side of the dust hood 3, and a rain shield 17 is fixedly connected to the upper end of the exhaust pipe 10. The sealing strip 16 is provided to enhance the ability of the dust hood 3 to resist the vibration caused by the air vortex when absorbing air, and the rain shield 17 is provided to protect the exhaust pipe 10 from being splashed with water, thereby achieving the effect of direct channel flow of the air before purification and the air after purification.

[0030] Working principle:

[0031] Step 1: When using the device, the dust collecting hood 3 sucks a large amount of dust-containing air into the dust removal chamber 1, and transports it to the dust bag 6 through the pipeline to prevent the dust from overflowing directly from the air in the dust bag 6. Even if a small amount of dust overflows from the gap in the dust bag 6, the mist sprayed by the nozzle 7 and the depressurized environment of the dust removal chamber 1 adsorb the dust particles in the air and further settle into sludge. The sludge formed by the dust aggregation flows into the collection box 15 at the bottom through the small-diameter discharge mechanism 14 for storage. The small-diameter environment of the discharge mechanism 14 avoids clogging due to the stirring bracket 142 contacting and rotating on the inner wall of the dust discharge pipe 146.

[0032] Step 2: When there is a lot of dust in the dust bag 6 that affects the isolation of dust from being discharged into the air, the vibrator 8 drives the vibration frame 5 to vibrate, so that the dust on the inner wall of the dust bag 6 settles down, and a small amount of dust overflowing in the air is also adsorbed by the dust collection droplets in the dust collection chamber 1 to settle down into sludge, thereby achieving a combination of bag dust collection technology and wet dust collection technology to improve the dust purification effect to a higher degree;

[0033] Step three, the dust diffused in the external environment air is suppressed from aggregating into a mixture and settling down in a large range by the water mist dust-proof wall formed by the periodic swing of the atomizing nozzle 126. The dust in the water mist dust-proof wall is extracted by the dust collecting hood 3 to remove the dust that has not yet settled, and the dust in the air is further effectively removed by bag dust removal and wet dust collection to achieve a high dust purification effect.

Claims

1. A device for preventing dust diffusion during hard rock blasting, comprising a dust removal chamber (1), characterized in that: A water tank (2) is fixedly installed on the right side of the upper end of the dust removal chamber (1), a delivery pipe (4) is fixedly arranged on the left side of the water tank (2), a dust collecting hood (3) is fixedly connected to the end face of the delivery pipe (4), a vibration frame (5) is movably installed at the top of the interior of the dust removal chamber (1), a dust removal bag (6) is fixedly installed on the lower side of the vibration frame (5), a nozzle (7) is fixedly installed on the lower surface of the vibration frame (5), a vibrator (8) is fixedly arranged at the middle position of the vibration frame (5), a dehumidifier (9) is fixedly connected to the dust removal chamber (1) through a pipeline, and an exhaust pipe (10) is fixedly arranged on the upper end of the dehumidifier (9).

2. The device for preventing dust diffusion during hard rock blasting according to claim 1, characterized in that: A spray mechanism (12) is fixedly installed on the left side of the upper end of the dust removal chamber (1), and the spray mechanism (12) comprises a slide plate (121), a half gear (122) and a telescopic rod (125). The half gear (122) is rotatably connected to the inner surface of the dust removal chamber (1), and the output end of the telescopic rod (125) is fixedly connected to a rack (123), and the rack (123) slides on the inner surface of the slide plate (121). The outer surface of the half gear (122) is meshingly connected to the surface of the slide plate (121). An articulated seat (124) is fixedly provided on the upper end of the half gear (122), and the articulated seat (124) is hinged to an atomizing nozzle (126). The lower end of the atomizing nozzle (126) is movably installed inside the dust removal chamber (1) through a hose.

3. The device for preventing dust diffusion during hard rock blasting according to claim 1, characterized in that: The bottom of the dust removal chamber (1) is fixedly provided with a dust outlet (13), the lower end surface of the dust outlet (13) is fixedly connected with a discharge mechanism (14), and the lower end of the discharge mechanism (14) is fixedly provided with a collection box (15).

4. The device for preventing dust diffusion during hard rock blasting according to claim 3, characterized in that: The discharge mechanism (14) comprises a motor (141), a protective sleeve (145) and a dust exhaust pipe (146); the inner wall of the dust exhaust pipe (146) is fixedly connected to the protective sleeve (145); the output end of the motor (141) passes through the inner cavity of the protective sleeve (145) and is fixedly provided with a second bevel gear (144); the inner cavity on the upper side of the protective sleeve (145) is rotatably connected to a stirring bracket (142); the lower end of the stirring bracket (142) is fixedly connected to a first bevel gear (143); the surface of the first bevel gear (143) is meshingly connected to the surface of the protective sleeve (145).

5. The device for preventing dust diffusion during hard rock blasting according to claim 2, characterized in that: A water pump (11) is fixedly provided at the upper end of the dust removal chamber (1), the left side of the water pump (11) is fixedly welded to the water tank (2), and the right side of the water pump (11) penetrates the interior of the dust removal chamber (1) through a pipeline and is fixedly installed on the spray mechanism (12) and the nozzle (7) respectively.

6. The device for preventing dust diffusion during hard rock blasting according to claim 1, characterized in that: A sealing strip (16) is fixedly connected to the lower side of the dust collecting hood (3), and a rain shield (17) is fixedly connected to the upper end of the exhaust tube (10).

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