Dust removal device for mine blasting

Abstract

A collecting mechanism comprises a stone crushing box, a threaded connector is fixedly connected to the middle of the top of the stone crushing box, bolts are slidably connected to the two ends of the bottom of the stone crushing box, and a dust collecting cylinder is movably connected to the position, located below the threaded connector, of the inner wall of the stone crushing box. The lower end of the dust collecting cylinder extends to the outer side of the stone crushing box, sleeve rods are symmetrically and fixedly connected to the side edges of the lower end of the stone crushing box, the inner walls of the two sleeve rods are in penetrating connection with bolts correspondingly, an intercepting net is fixedly connected to the top of the dust collecting cylinder, and a dust collecting cavity is formed in the position, below the intercepting net, of the inner wall of the dust collecting cylinder. A water storage cavity is formed in the bottom of the inner wall of the dust collecting cylinder, an intercepting net is arranged in the collecting mechanism to separate broken stones and dust, the intercepting net is arranged to be conical, the broken stones fall into the stone crushing box along the side edge after falling on the intercepting net, and it is not affected that the dust penetrates through the intercepting net to enter the dust collecting cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust removal device for mine blasting. Background Art

[0002] Mine blasting is a technology that uses explosives to break rocks to obtain ore. It is usually carried out in underground or open-pit mines and involves precise blasting design and safety measures to ensure minimal environmental impact and protect worker safety. Blasting can effectively improve the efficiency and cost-effectiveness of ore mining and is one of the important engineering technologies in the mining field.

[0003] A Chinese patent discloses a dust removal device for mining blasting (publication number: CN221107424U). The device seals the bottom of the collection tube through a sleeve, which solves the problem that a large amount of dust and gravel enter the dust removal box during use, which easily damages the ventilation plate and the fan, making the fan unable to work normally and unable to perform dust removal. However, the device still has the following problems:

[0004] The above device collects dust and gravel into the collecting tube, and separates the dust and gravel through the second filter screen inside the collecting tube. However, the gravel gradually accumulates on the surface of the filter screen, which is easy to cause blockage, thereby preventing dust from passing through the filter screen. Therefore, a dust removal device for mine blasting is proposed to solve the above problem. Utility Model Content

[0005] The technical problems to be solved by the utility model are as follows: However, the crushed stones gradually accumulate on the surface side of the filter screen, which is easy to cause blockage, thereby preventing dust from passing through the filter screen.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A dust removal device for mining blasting, comprising a dust removal mechanism, a collecting mechanism is arranged at the lower end of the dust removal mechanism, and the dust removal mechanism comprises a negative pressure fan;

[0008] Also includes:

[0009] Wherein, the collecting mechanism comprises a gravel box, a threaded interface is fixedly connected to the middle of the top of the gravel box, and latches are slidably connected to both ends of the bottom of the gravel box;

[0010] The inner wall of the gravel box is movably connected to a dust collecting cylinder located below the threaded interface, the lower end of the dust collecting cylinder extends to the outside of the gravel box, and sleeve rods are symmetrically fixedly connected to the sides of the lower end of the gravel box, and the inner walls of the two sleeve rods are respectively connected with the latches;

[0011] The top of the dust collecting cylinder is fixedly connected with an interception net, which is in the shape of a cone as a whole. A dust collecting cavity is provided on the inner wall of the dust collecting cylinder and below the interception net, and a water storage cavity is provided at the bottom of the inner wall of the dust collecting cylinder.

[0012] As a further solution of the utility model: water pipes are opened on the inner wall of the dust collecting barrel and on both sides of the water storage chamber, the upper ends of the water pipes extend to the sides of the dust collecting chamber, the gravel box is located on the top of the water pipe and is fixedly connected to an atomizing nozzle, one end of the atomizing nozzle is located inside the dust collecting chamber.

[0013] As a further solution of the utility model: a push rod is connected through the middle of the bottom surface of the gravel box, a sealing plate is fixedly connected to the top of the push rod, the side of the sealing plate is slidably connected to the inner side of the water storage chamber, a water inlet is connected through the outer wall of the dust collecting barrel near the water storage chamber, a valve plate is rotatably connected to the middle part of the inner wall of the water inlet, a protrusion is provided at one end inside the water inlet, and the water inlet is located on the side of the protrusion and abuts against the valve plate.

[0014] As a further solution of the utility model: the dust removal mechanism also includes a base, one side of the top of the base is fixedly installed with the negative pressure fan, the other side of the top of the base is fixedly connected to a dust removal box, one end of the bottom surface of the dust removal box is provided with an internal thread groove, the inner wall of the internal thread groove is threadedly connected to the threaded interface, the end of the outer wall of the dust removal box away from the negative pressure fan is fixedly connected with an air inlet, and the inner wall of the dust removal box and close to the internal thread groove is fixedly connected with a guide plate.

[0015] As a further solution of the utility model: the negative pressure end of the negative pressure fan extends into the interior of the dust removal box, the middle part of the dust removal box is slidably connected with a dustproof net, the top of the dustproof net is fixedly connected with a pull rod, the bottom of the pull rod is fixedly connected with an insert block, and slots are provided on both sides of the outer wall of the insert block.

[0016] As a further solution of the utility model: the bottom of the inner wall of the dust collector box is movably connected to the plug block, the inner wall of the dust collector box and both sides of the plug block are slidably connected with a card block, the top surface of one end of the card block is set as a slope, the end of the card block with the slope is engaged with the inner side of the slot, the end of the card block away from the plug block is fixedly connected with a spring, and the other end of the spring is fixedly connected to the inner wall of the dust collector box.

[0017] As a further solution of the utility model: the dust removal box is slidably connected with a push rod below the insertion block, the top of the push rod is movably contacted with the bottom surfaces of the two blocks respectively, and one side of the bottom surface of the block is also set as an inclined surface.

[0018] Beneficial effects of the utility model:

[0019] (1) The utility model introduces gravel and dust into the dust removal box 103 through the air inlet by a negative pressure fan, and the gravel and dust enter the collection mechanism along the guide plate. An interception net is arranged inside the collection mechanism to separate the gravel and dust, and the interception net is arranged in a cone shape. After the gravel falls on the interception net, it falls along the side into the gravel box without affecting the dust from passing through the interception net into the dust collection chamber, thereby improving the practicality of the device;

[0020] (2) A water storage chamber is provided at the bottom of the dust collecting barrel, and water pipes extending into the dust collecting chamber are provided on both sides of the water storage chamber. When the push rod is pushed to drive the sealing plate to squeeze the water source inside the water storage chamber, water flows into the dust collecting chamber through the water pipe to wet the dust, thereby preventing a large amount of dust from being scattered due to shaking when the dust collecting barrel is taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the dust removal box in the utility model;

[0024] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of region A;

[0025] Figure 4 It is a schematic diagram of the internal structure of the collecting mechanism in the utility model;

[0026] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area B.

[0027] In the figure: 1. dust removal mechanism; 101. base; 102. negative pressure fan; 103. dust removal box; 104. air inlet; 105. internal thread groove; 106. guide plate; 107. dust screen; 108. pull rod; 109. plug block; 110. slot; 111. block; 112. spring; 113. push rod; 2. collection mechanism; 201. gravel box; 202. threaded interface; 203. latch; 204. dust collecting cylinder; 205. sleeve rod; 206. interception net; 207. dust collecting chamber; 208. water storage chamber; 209. water supply pipeline; 210. atomizing nozzle; 211. sealing plate; 212. push rod; 213. water inlet; 214. valve plate. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] like Figure 1-5 As shown, a dust removal device for mining blasting includes a dust removal mechanism 1, a collecting mechanism 2 is provided at the lower end of the dust removal mechanism 1, and the dust removal mechanism 1 includes a negative pressure fan 102; wherein the collecting mechanism 2 includes a crushed stone box 201, a threaded interface 202 is fixedly connected to the middle of the top of the crushed stone box 201, and both ends of the bottom of the crushed stone box 201 are slidably connected to latches 203; wherein the inner wall of the crushed stone box 201 and below the threaded interface 202 is movably connected to a dust collecting cylinder 20 4. The lower end of the dust collecting cylinder 204 extends to the outside of the gravel box 201, and the lower end side of the gravel box 201 is symmetrically fixedly connected with a sleeve rod 205, and the inner walls of the two sleeve rods 205 are respectively connected with the latch 203; wherein, the top of the dust collecting cylinder 204 is fixedly connected with an interception net 206, and the interception net 206 is a cone as a whole. The inner wall of the dust collecting cylinder 204 and below the interception net 206 are provided with a dust collecting cavity 207, and the bottom of the inner wall of the dust collecting cylinder 204 is provided with a water storage cavity 208, such as Figure 4 As shown, the large-grained gravel that falls on the top of the interception net 206 falls along the side;

[0030] A water pipe 209 is provided on the inner wall of the dust collecting cylinder 204 and on both sides of the water storage chamber 208. The upper end of the water pipe 209 extends to the side of the dust collecting chamber 207. The gravel box 201 is located on the top of the water pipe 209 and is fixedly connected to an atomizing nozzle 210. One end of the atomizing nozzle 210 is located inside the dust collecting chamber 207. Figure 4 As shown, the water flow is dispersed after passing through the atomizing nozzle 210, thereby increasing the contact range with the dust;

[0031] A push rod 212 is connected through the middle of the bottom surface of the gravel box 201, and a sealing plate 211 is fixedly connected to the top of the push rod 212. The side of the sealing plate 211 is slidably connected to the inner side of the water storage chamber 208. A water inlet 213 is connected through the outer wall of the dust collecting cylinder 204 near the water storage chamber 208. A valve plate 214 is rotatably connected to the middle of the inner wall of the water inlet 213. A convex block is arranged at one end of the inner part of the water inlet 213. The water inlet 213 is located on the side of the convex block and abuts against the valve plate 214. Figure 5 As shown, under the obstruction of the protrusion, the valve plate 214 cannot rotate clockwise, so that the water pressure inside the water storage chamber 208 cannot push the valve plate 214 to flip;

[0032] The dust removal mechanism 1 also includes a base 101, one side of the top of the base 101 is fixedly installed with the negative pressure fan 102, and the other side of the top of the base 101 is fixedly connected with a dust removal box 103, one end of the bottom surface of the dust removal box 103 is provided with an internal thread groove 105, the inner wall of the internal thread groove 105 is threadedly connected with the threaded interface 202, the end of the outer wall of the dust removal box 103 away from the negative pressure fan 102 is fixedly connected with an air inlet 104, and the inner wall of the dust removal box 103 and near the internal thread groove 105 is fixedly connected with a guide plate 106, such as Figure 2 As shown, the guide plate 106 guides the gravel and dust into the interior of the threaded interface 202;

[0033] The negative pressure end of the negative pressure fan 102 extends into the dust removal box 103, and the middle part of the dust removal box 103 is slidably connected with a dustproof net 107, and the top of the dustproof net 107 is fixedly connected with a pull rod 108, and the bottom of the pull rod 108 is fixedly connected with an insert block 109, and the outer wall of the insert block 109 is provided with a card slot 110 on both sides, and the bottom of the inner wall of the dust removal box 103 is movably connected with the insert block 109, and the inner wall of the dust removal box 103 and the insert block 109 are slidably connected with a card block 111 on both sides. The top surface of one end of 111 is set as an inclined surface, and the end of the card block 111 with the inclined surface is engaged with the inner side of the card slot 110. The end of the card block 111 located away from the plug block 109 is fixedly connected with a spring 112, and the other end of the spring 112 is fixedly connected to the inner wall of the dust removal box 103. The dust removal box 103 is located below the plug block 109 and is slidably connected with a push rod 113. The top of the push rod 113 is respectively in active contact with the bottom surfaces of the two card blocks 111. One side of the bottom surface of the card block 111 is set as an inclined surface. Figure 3 As shown, the push rod 113 is lifted up to push the bottom inclined surface of the block 111, thereby pushing the block 111 to move leftward, and when the inserting block 109 is pressed down, it pushes the top inclined surface of the block 111, driving the block 111 to move leftward.

[0034] The working principle of this utility model:

[0035] When dust is removed from the blasting site, the negative pressure fan 102 is started to drive the negative pressure inside the dust removal box 103, so that the airflow drives the external gravel and dust into the dust removal box 103 through the air inlet 104, and the dust and gravel are blocked by the dust-proof net 107, and then fall due to gravity, and fall along the guide plate 106 into the threaded interface 202, and then the dust and gravel contact the interception net 206, and the gravel slides along the side of the interception net 206 into the side gravel box 201, and the dust passes through the interception net 206 into the dust collecting chamber 207;

[0036] Secondly, after the dust and gravel are collected, water is introduced into the water storage chamber 208 through the water inlet 213, and then the push rod 212 is lifted up to drive the sealing plate 211 to squeeze the water source in the water storage chamber 208, and the water source is pushed into the water delivery pipe 209, and then sprinkled into the dust collection chamber 207 through the atomizing nozzle 210 to mix with the dust to avoid a large amount of dust from fluctuating during shaking, and finally the latch 203 is pushed to separate it from the sleeve rod 205, and the dust collection cylinder 204 is pulled down to clean the dust and gravel;

[0037] In addition, when replacing the dust screen 107, the push rod 113 is pushed upward, and the push rod 113 pushes the inclined surface below the block 111, so that the block 111 compresses the spring 112, and the block 111 is separated from the slot 110, and the insert block 109 and the dust screen 107 above can be pulled out upward.

[0038] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A dust removal device for mining blasting, comprising a dust removal mechanism (1), a collecting mechanism (2) being arranged at the lower end of the dust removal mechanism (1), and the dust removal mechanism (1) comprising a negative pressure fan (102); It is characterized in that Also includes: The collecting mechanism (2) comprises a gravel box (201), a threaded interface (202) is fixedly connected to the middle of the top of the gravel box (201), and latches (203) are slidably connected to both ends of the bottom of the gravel box (201); A dust collecting cylinder (204) is movably connected to the inner wall of the gravel box (201) and located below the threaded interface (202); the lower end of the dust collecting cylinder (204) extends to the outside of the gravel box (201); and sleeve rods (205) are symmetrically fixedly connected to the side of the lower end of the gravel box (201); the inner walls of the two sleeve rods (205) are respectively connected to the latch pins (203); The top of the dust collecting cylinder (204) is fixedly connected to an intercepting net (206), the intercepting net (206) is in the shape of a cone as a whole, the inner wall of the dust collecting cylinder (204) and below the intercepting net (206) is provided with a dust collecting cavity (207), and the bottom of the inner wall of the dust collecting cylinder (204) is provided with a water storage cavity (208).

2. A dust removal device for mine blasting according to claim 1, characterized in that: Water pipes (209) are provided on the inner wall of the dust collecting cylinder (204) and on both sides of the water storage chamber (208); the upper ends of the water pipes (209) extend to the sides of the dust collecting chamber (207); the gravel box (201) is fixedly connected to an atomizing nozzle (210) at the top of the water pipe (209); one end of the atomizing nozzle (210) is located inside the dust collecting chamber (207).

3. A dust removal device for mine blasting according to claim 1, characterized in that: A push rod (212) is connected through the middle of the bottom surface of the gravel box (201), and a sealing plate (211) is fixedly connected to the top of the push rod (212). The side of the sealing plate (211) is slidably connected to the inner side of the water storage chamber (208). A water inlet (213) is connected through the outer wall of the dust collecting cylinder (204) near the water storage chamber (208). A valve plate (214) is rotatably connected to the middle of the inner wall of the water inlet (213). A protrusion is provided at one end of the inner part of the water inlet (213), and the water inlet (213) is located on the side of the protrusion and abuts against the valve plate (214).

4. A dust removal device for mine blasting according to claim 1, characterized in that: The dust removal mechanism (1) also includes a base (101), one side of the top of the base (101) is fixedly mounted to the negative pressure fan (102), the other side of the top of the base (101) is fixedly connected to a dust removal box (103), one end of the bottom surface of the dust removal box (103) is provided with an internal thread groove (105), the inner wall of the internal thread groove (105) is threadedly connected to the threaded interface (202), the end of the outer wall of the dust removal box (103) away from the negative pressure fan (102) is fixedly connected to an air inlet (104), and the inner wall of the dust removal box (103) and close to the internal thread groove (105) is fixedly connected to a guide plate (106).

5. A dust removal device for mine blasting according to claim 4, characterized in that: The negative pressure end of the negative pressure fan (102) extends into the interior of the dust removal box (103), and the middle part of the dust removal box (103) is slidably connected with a dustproof net (107), the top of the dustproof net (107) is fixedly connected with a pull rod (108), and the bottom of the pull rod (108) is fixedly connected with an insert block (109), and both sides of the outer wall of the insert block (109) are provided with slots (110).

6. A dust removal device for mine blasting according to claim 5, characterized in that: The bottom of the inner wall of the dust removal box (103) is movably connected to the plug block (109); the inner wall of the dust removal box (103) and both sides of the plug block (109) are slidably connected with a clamping block (111); the top surface of one end of the clamping block (111) is set as an inclined surface; the end of the clamping block (111) with the inclined surface is engaged with the inner side of the clamping groove (110); the end of the clamping block (111) far from the plug block (109) is fixedly connected with a spring (112); the other end of the spring (112) is fixedly connected to the inner wall of the dust removal box (103).

7. A dust removal device for mine blasting according to claim 6, characterized in that: The dust removal box (103) is located below the insert block (109) and is slidably connected to a push rod (113), the top of the push rod (113) is in active contact with the bottom surfaces of the two clamping blocks (111) respectively, and one side of the bottom surface of the clamping block (111) is also set as an inclined surface.

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