Dredging device of barrel coal bunker hydraulic drilling rig

Abstract

The invention discloses a barrel coal bunker hydraulic drilling rig dredging device, and belongs to the technical field of barrel coal bunker dredging devices, the barrel coal bunker hydraulic drilling rig dredging device comprises a rack used for installing a motor, a gearbox and an oil tank, and the motor is connected with the gearbox through belt transmission; a connecting disc is mounted on the gyrator, and the connecting disc is fastened on the gearbox through two semi-rings and nuts; the drill rod is mounted on a spring chuck of the gyrator; a plurality of air suction holes are formed in the side wall of the air suction cylinder in an array mode, and dustproof nets are arranged in the air suction holes; the purification cylinder is fixed to the bottom end of the drill rod, the purification cylinder is fixedly connected with the air suction cylinder through a connecting rod, and an adsorbent is arranged in the purification cylinder; according to the invention, the drill bit is used for impacting a blocked part to destroy a coal material structure so as to realize the dredging purpose, and the air suction cylinder and the purification cylinder are arranged to absorb and purify harmful gas released from the coal material, so that the production safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of coal bunker dredging devices, and in particular to a coal bunker hydraulic drilling rig dredging device. Background Art

[0002] The so-called coal bunker refers to a place for temporary storage of coal. During the production process of an enterprise, coal often hangs on the inner wall of the coal bunker, which will cause blockage of the coal bunker. Once the coal bunker is blocked, it will seriously affect the normal operation of the entire production. In order to prevent the coal bunker from being blocked and ensure the normal operation of production, it is usually necessary to manually dredge the coal bunker at regular intervals.

[0003] Existing dredging methods include air cannons, ultrasonic waves, vector motor vibrators and the latest hydraulic drill pipe dredging devices. Currently, the mainstream uses hydraulic drill pipe dredging devices to dredge coal bunkers. Hydraulic drill pipe dredging devices are divided into fixed and mobile types. They have the advantages of small size, light weight and reliable performance. However, in actual work, it is found that since most coal bunkers are closed structures, although equipped with ventilation mechanisms, when the drill tool breaks and cleans the coal, the broken coal will release harmful gases. These harmful gases mainly include methane (CH4), carbon monoxide (CO), sulfur dioxide (SO2) and hydrogen sulfide (H2S). If not handled in time, the risk factor of accidents will increase with the increase in concentration. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic drilling rig dredging device for a coal bunker to solve the following technical problems: when the coal bunker is dredged, the drill tool breaks up the coal and cleans it, and the broken coal will release harmful gases. If not handled in time, the accident risk factor will increase as the concentration increases.

[0005] The purpose of the present invention can be achieved through the following technical solutions: Coal bunker hydraulic drilling rig dredging device, including: A frame, used for mounting a motor, a gearbox and an oil tank, wherein the motor is connected to the gearbox via a belt drive; A gyrator, on which a connecting plate is mounted, and the connecting plate is fastened to the gearbox via two half rings and a nut; A drill rod mounted on a spring chuck of the rotator; A suction cylinder, wherein a plurality of suction holes are arranged in an array on the side wall of the suction cylinder, and a dustproof net is arranged in the suction holes; A purification cylinder, wherein the purification cylinder is fixed to the bottom end of the drill pipe, the purification cylinder is fixedly connected to the suction cylinder through a connecting rod, and an adsorbent is arranged in the purification cylinder; A connecting pipe, used to connect the purification cylinder and the suction cylinder, and a micro air pump is installed on the connecting pipe; A drill bit, which is fixed at the bottom of the suction cylinder and is used to remove materials from the inner wall of the coal bunker; The hydraulic system consists of an oil pump, a multi-way reversing valve, a throttle valve, a relief valve, and an oil pipe.

[0006] As a further solution of the present invention: a porous plate and a partition are fixed in the purification cylinder, the partition is located above the porous plate, and the adsorbent is located between the porous plate and the partition, a connecting column is fixed on the upper surface of the partition, the connecting column and the partition are provided with a connecting conical hole, a sealing plate is movably provided in the conical hole, two first guide rods are movably provided on the sealing plate, one end of the first guide rod is fixed on the top wall of the purification cylinder, a buffer spring is mounted on the first guide rod, an exhaust chamber is provided at the bottom of the drill rod, the exhaust chamber is connected to the purification cylinder, and exhaust pipes are connected to both sides of the exhaust chamber.

[0007] As a further solution of the present invention: mounting rods are symmetrically fixed on the inner wall of the purification cylinder, the mounting rods are located between the porous plate and the partition, a mounting ring is fixed between the two mounting rods, a rotating ring is rotatably installed in the mounting ring, driven rods are fixed at both ends of the rotating ring, a stirring shaft is fixed on the driven rod, a spiral rod is fixed to the bottom of the sealing plate, a spiral groove is opened in the rotating ring, and the spiral rod is adapted to the spiral groove.

[0008] As a further solution of the present invention: a pressure valve is installed on the exhaust pipe, a branch pipe is connected to the exhaust pipe, a cleaning ring is movably arranged in the suction cylinder, bristles are arranged on the outer wall of the cleaning ring, air bags are symmetrically arranged on the top wall of the cleaning ring, and one end of the two branch pipes is respectively connected to the two air bags.

[0009] As a further solution of the present invention: a return spring is arranged in the airbag, and two ends of the return spring are respectively connected to the top wall and the bottom wall of the airbag.

[0010] As a further solution of the present invention: a cavity is provided in the cleaning ring, exhaust holes are arranged in an array on the side wall of the cleaning ring, and the exhaust holes are located below the bristles, a first ventilation hole is provided between the cavity of the cleaning ring and the air bag, a first wedge block is movably provided on the inner side of the cleaning ring, a compression spring is connected between the first wedge block and the inner wall of the cleaning ring cavity, a second ventilation hole is opened on the first wedge block, a second wedge block is symmetrically provided on the inner surface of the bottom wall of the suction cylinder, a sealing ring is provided on the inner surface of the bottom wall of the suction cylinder, and the inner diameter of the sealing ring is adapted to the outer diameter of the cleaning ring.

[0011] As a further solution of the present invention: two second guide rods are fixed between the top wall and the bottom wall of the suction cylinder, and movable blocks are movably sleeved on the second guide rods, and one end of the two movable blocks is fixedly connected to the cleaning ring respectively.

[0012] Beneficial effects of the present invention: (1) When in use, the device is placed on the top of the coal bunker, and the drill bit is used to impact the blocked part to destroy the coal structure and achieve the purpose of dredging. In addition, an air suction cylinder and a purification cylinder are provided to absorb and purify the harmful gas released from the coal to ensure production safety. (2) The present invention provides a porous plate and a partition with the adsorbent located between the two. When harmful gases are sent into the purification cylinder, they are absorbed by the adsorbent to reduce the concentration of harmful gases, thereby improving safety. In addition, the blocking plate can appropriately prolong the residence time of harmful gases in the purification cylinder, thereby improving the adsorption and purification effect. (3) The present invention provides a mounting rod, a mounting ring, a rotating ring, a spiral rod and a stirring shaft to stir the adsorbent each time it works, which helps to keep the activated carbon in a loose state, ensure that the gas can pass evenly, avoid adsorbent agglomeration, and also avoid local oversaturation, thereby extending the service life of the adsorbent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the drill rod of the present invention; Figure 3 It is a schematic diagram of the internal structure of the purification cartridge of the present invention; Figure 4 It is a schematic diagram of the structure of the connecting column and the blocking plate of the present invention in a disassembled state; Figure 5 It is a schematic diagram of the structure of the mounting ring and the rotating ring of the present invention; Figure 6 It is a schematic diagram of the internal structure of the air suction cylinder of the present invention; Figure 7 It is a schematic diagram of the internal structure of the cleaning ring of the present invention.

[0015] In the figure: 1, frame; 2, gearbox; 3, rotator; 4, drill rod; 5, purification cylinder; 6, connecting rod; 7, suction cylinder; 8, drill bit; 9, suction hole; 10, connecting pipe; 11, porous plate; 12, partition; 13, connecting column; 14, blocking plate; 15, first guide rod; 16, buffer spring; 17, exhaust chamber; 18, exhaust pipe; 19, spiral rod; 20, mounting rod; 21, mounting ring; 22, rotating ring; 23, driven rod; 24, stirring shaft; 25, branch pipe; 26, second guide rod; 27, movable block; 28, cleaning ring; 29, air bag; 30, bristles; 31, exhaust hole; 32, second wedge block; 33, first vent; 34, first wedge block; 35, compression spring; 36, second vent; 37, sealing ring.

[0016] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 to Figure 2 As shown, the present invention is a coal bunker hydraulic drilling rig dredging device, comprising: The frame 1 is used to install the motor, the gearbox 2 and the oil tank. The motor is connected to the gearbox 2 through a belt drive. The gyrator 3 is provided with a connecting plate, which is fastened to the gearbox 2 via two half rings and a nut; A drill rod 4, which is mounted on a spring chuck of a rotator 3; A suction cylinder 7, a plurality of suction holes 9 are arranged in an array on the side wall of the suction cylinder 7, and a dustproof net is arranged in the suction hole 9; The purification cylinder 5 is fixed at the bottom end of the drill pipe 4. The purification cylinder 5 is fixedly connected to the suction cylinder 7 through a connecting rod 6. An adsorbent is arranged in the purification cylinder 5. A connecting pipe 10 is used to connect the purification cylinder 5 and the suction cylinder 7, and a micro air pump is installed on the connecting pipe 10; A drill bit 8 is fixed at the bottom end of the suction cylinder 7 and is used to remove materials from the inner wall of the coal bunker; The hydraulic system is composed of an oil pump, a multi-way reversing valve, a throttle valve, a relief valve, and an oil pipe. The hydraulic system is a prior art and will not be described in detail here. When in use, place the equipment on the top wall of the coal bunker. After confirming that the equipment is operating normally, use the rotator 3 to drive the drill rod 4 to descend, move the drill bit 8 to the position to be dredged, start the equipment to carry out the dredging work, and while dredging, start the micro air pump to suck the harmful gas released from the coal into the suction cylinder 7 through the suction hole 9, and then send it into the purification cylinder 5 through the connecting pipe 10. The adsorbent absorbs and purifies the harmful gas to ensure production safety. After the blockage at one place is cleared, move the equipment to the next place along the circumference of the coal bunker, and repeat the same operation again. It is worth mentioning that the adsorbent can be activated carbon or silica gel, which can be selected according to the actual situation on site.

[0019] See also Figures 2 to 4 A porous plate 11 and a partition 12 are fixed in the purification cylinder 5, the partition 12 is located above the porous plate 11, and the adsorbent is located between the porous plate 11 and the partition 12, a connecting column 13 is fixed on the upper surface of the partition 12, and a connecting column 13 and the partition 12 are provided with a connected conical hole, a blocking plate 14 is movably provided in the conical hole, and two first guide rods 15 are movably provided on the blocking plate 14, one end of the first guide rod 15 is fixed on the top wall of the purification cylinder 5, and a buffer spring 16 is mounted on the first guide rod 15, and an exhaust chamber 17 is provided at the bottom of the drill rod 4, and the exhaust chamber 17 is connected with the purification cylinder 5, and exhaust pipes 18 are connected to both sides of the exhaust chamber 17; in order to improve the purification effect on harmful gases, a connecting column 13 and a sealing plate 14 are provided. After being blocked by the sealing plate 14, the harmful gases will not be discharged immediately, and the air pressure at the bottom of the sealing plate 14 will gradually increase. When the air pressure overcomes the gravity of the sealing plate 14 and the elastic force of the buffer spring 16, the sealing plate 14 will be lifted up. At this time, the purified air enters the exhaust chamber 17 and is discharged through the exhaust pipe 18, which effectively prolongs the residence time of the harmful gases in the adsorbent and improves the purification effect.

[0020] See also Figure 3 to Figure 4, mounting rods 20 are symmetrically fixed on the inner wall of the purification cylinder 5, and the mounting rods 20 are located between the porous plate 11 and the partition plate 12. A mounting ring 21 is fixed between the two mounting rods 20, and a rotating ring 22 is rotatably installed in the mounting ring 21. Both ends of the rotating ring 22 are fixed with driven rods 23, and a stirring shaft 24 is fixed on the driven rod 23. A spiral rod 19 is fixed to the bottom of the blocking plate 14, and a spiral groove is opened in the rotating ring 22, and the spiral rod 19 is adapted to the spiral groove; in order to extend the use effect and life of the adsorbent, when the blocking plate 14 is lifted up, the spiral rod 19 is synchronously raised and drives the rotating ring 22 to rotate, so that the driven rod 23 and the stirring shaft 24 stir the adsorbent, which helps to maintain the loose state of the activated carbon, ensure that the gas can pass evenly, avoid agglomeration of the adsorbent, and also avoid local oversaturation, thereby extending the service life of the adsorbent.

[0021] See also Figure 3 and Figure 6 A pressure valve is installed on the exhaust pipe 18, a branch pipe 25 is connected to the exhaust pipe 18, a cleaning ring 28 is movably provided in the suction cylinder 7, bristles 30 are provided on the outer wall of the cleaning ring 28, air bags 29 are symmetrically provided on the top wall of the cleaning ring 28, one end of the two branch pipes 25 is respectively connected to the two air bags 29, a return spring is provided in the air bag 29, and the two ends of the return spring are respectively connected to the top wall and the bottom wall of the air bag 29; two second guide rods 26 are fixed between the top wall and the bottom wall of the suction cylinder 7, and the second guide rods 26 are movably provided The movable set is provided with movable blocks 27, one end of the two movable blocks 27 is fixedly connected to the cleaning ring 28 respectively; a pressure valve is provided on the exhaust pipe 18, and the gas initially entering the exhaust chamber 17 will not be discharged immediately, but first enters the air bag 29 through the branch pipe 25. After the air bag 29 expands, the volume increases, pushing the cleaning ring 28 to move downward, and the dustproof net in the suction hole 9 is cleaned by the bristles 30 to prevent the suction hole 9 from being blocked and affecting the suction effect. When the cleaning ring 28 moves to the bottom, the excess gas is discharged through the exhaust pipe 18.

[0022] See also Figure 6 and Figure 7A cavity is provided in the cleaning ring 28, and exhaust holes 31 are arranged in an array on the side wall of the cleaning ring 28, and the exhaust holes 31 are located below the bristles 30. A first vent hole 33 is provided between the cavity of the cleaning ring 28 and the air bag 29, and a first wedge block 34 is movably provided on the inner side of the cleaning ring 28, and a compression spring 35 is connected between the first wedge block 34 and the inner wall of the cavity of the cleaning ring 28, and a second vent hole 36 is opened on the first wedge block 34. A second wedge block 32 is symmetrically provided on the inner surface of the bottom wall of the suction cylinder 7, and a sealing ring 37 is provided on the inner surface of the bottom wall of the suction cylinder 7, and the inner diameter of the sealing ring 37 is adapted to the outer diameter of the cleaning ring 28; when the air bag 29 expands, the reset spring is stretched, and when the cleaning ring 28 moves to the bottom of the suction cylinder 7, the second wedge block 32 contacts the first wedge block 34, pushing the first wedge The block 34 moves into the cleaning ring 28, the first vent hole 33 is connected with the second vent hole 36, and the gas in the airbag 29 enters the cavity. However, due to the obstruction of the sealing ring 37, the gas cannot be discharged through the exhaust hole 31 at this time, and due to the continuous input of gas, the position of the cleaning ring 28 remains fixed. When the work is completed and the machine is shut down, the gas is no longer input. At this time, the reset spring resets and drives the cleaning ring 28 to rise, and the cleaning ring 28 is separated from the sealing ring 37. The internal gas is discharged through the exhaust hole 31, and the dustproof net is automatically cleaned to ensure the normal subsequent air intake. It is worth mentioning that in order to avoid danger caused by excessive air pressure, the sealing ring 37 is made of rubber. Excessive air pressure will cause a slight deformation of the sealing ring 37, and a small amount of gas can be discharged through the gap between the sealing ring 37 and the cleaning ring 28 to maintain air pressure balance.

[0023] Working principle of the present invention: When in use, place the device on the top wall of the coal bunker. After confirming that the device is in normal operation, use the rotator 3 to drive the drill rod 4 to descend, move the drill bit 8 to the position to be dredged, and start the device to start the dredging work. While dredging, start the micro air pump to suck the harmful gas released from the coal into the suction cylinder 7 through the suction hole 9, and then send it into the purification cylinder 5 through the connecting pipe 10. The adsorbent absorbs and purifies the harmful gas to ensure production safety. After being blocked by the blocking plate 14, the harmful gas will not be discharged immediately. The air pressure at the bottom of the blocking plate 14 gradually increases. When the air pressure overcomes the gravity of the blocking plate 14 and the elastic force of the buffer spring 16, the blocking plate 14 is lifted up. At this time, the purified air enters the exhaust chamber 17, which prolongs the residence time of the harmful gas in the adsorbent and improves the purification effect. When the blocking plate 14 is lifted up, the spiral rod 19 rises synchronously and drives the rotating ring 22 to rotate, so that the driven rod 23 and the stirring shaft 24 stir the adsorbent, which helps to keep the activated carbon in a loose state and ensure that the gas can pass evenly. A pressure valve is provided on the exhaust pipe 18. The gas initially entering the exhaust chamber 17 will not be discharged immediately, but will first enter the airbag 29 through the branch pipe 25. After the airbag 29 expands, its volume increases, and the return spring is stretched, pushing the cleaning ring 28 to move downward. The dustproof net in the suction hole 9 is cleaned by the bristles 30 to prevent the suction hole 9 from being blocked and affecting the suction effect. When the cleaning ring 28 moves to the bottom, the second wedge block 32 contacts the first wedge block 34, pushing the first wedge block 34 to move into the cleaning ring 28, and the first vent hole 33 is connected with the second vent hole 36, and the gas in the airbag 29 enters the cavity The gas inside the cavity cannot be discharged in large quantities through the exhaust hole 31 due to the obstruction of the sealing ring 37. The gas is continuously input to maintain the air pressure balance between the airbag 29 and the cavity, and the excess gas is discharged through the exhaust pipe 18. When the work is completed and the machine is shut down, the gas is no longer input. After a small amount of gas leaks through the gap between the sealing ring 37 and the cleaning ring 28, the air pressure decreases. At this time, the reset spring resets and drives the cleaning ring 28 to rise. The cleaning ring 28 is separated from the sealing ring 37, and the gas inside the cavity is discharged through the exhaust hole 31. While the cleaning ring 28 is rising, the dust screen is cleaned again to ensure the normal subsequent air intake. After one blockage is cleared, move the equipment to the next one along the circumference of the coal bin and repeat the same operation.

[0024] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. Coal bunker hydraulic drilling rig dredging device, characterized in that: include: A frame (1) for mounting a motor, a gearbox (2) and an oil tank, wherein the motor is connected to the gearbox (2) via a belt drive; A gyrator (3), wherein a connecting plate is mounted on the gyrator (3), and the connecting plate is fastened to the gearbox (2) via two half rings and a nut; A drill rod (4), the drill rod (4) being mounted on a spring chuck of the rotator (3); An air suction cylinder (7), wherein a plurality of air suction holes (9) are arranged in an array on a side wall of the air suction cylinder (7), and a dustproof net is arranged inside the air suction holes (9); A purification cylinder (5), the purification cylinder (5) being fixed to the bottom end of the drill rod (4), the purification cylinder (5) being fixedly connected to the suction cylinder (7) via a connecting rod (6), and an adsorbent being arranged in the purification cylinder (5); A connecting pipe (10) is used to connect the purification cylinder (5) and the suction cylinder (7), and a micro air pump is installed on the connecting pipe (10); A drill bit (8), the drill bit (8) being fixed to the bottom end of the suction cylinder (7) and used for removing materials from the inner wall of the coal bunker; The hydraulic system consists of an oil pump, a multi-way reversing valve, a throttle valve, a relief valve, and an oil pipe.

2. The coal bunker hydraulic drilling rig dredging device according to claim 1 is characterized in that: A porous plate (11) and a partition (12) are fixed in the purification cylinder (5), the partition (12) is located above the porous plate (11), and the adsorbent is located between the porous plate (11) and the partition (12), a connecting column (13) is fixed on the upper surface of the partition (12), a conical hole communicating with each other is provided on the connecting column (13) and the partition (12), a blocking plate (14) is movably provided in the conical hole, two first guide rods (15) are movably provided on the blocking plate (14), one end of the first guide rod (15) is fixed on the top wall of the purification cylinder (5), a buffer spring (16) is sleeved on the first guide rod (15), an exhaust cavity (17) is provided at the bottom of the drill rod (4), the exhaust cavity (17) is communicated with the purification cylinder (5), and exhaust pipes (18) are connected to both sides of the exhaust cavity (17).

3. The coal bunker hydraulic drilling rig dredging device according to claim 2 is characterized in that: Mounting rods (20) are symmetrically fixed on the inner wall of the purification cylinder (5), the mounting rods (20) are located between the porous plate (11) and the partition plate (12), a mounting ring (21) is fixed between the two mounting rods (20), a rotating ring (22) is rotatably mounted inside the mounting ring (21), driven rods (23) are fixed at both ends of the rotating ring (22), a stirring shaft (24) is fixed on the driven rod (23), a spiral rod (19) is fixed at the bottom of the blocking plate (14), a spiral groove is provided inside the rotating ring (22), and the spiral rod (19) is adapted to the spiral groove.

4. The coal bunker hydraulic drilling rig dredging device according to claim 2 is characterized in that: A pressure valve is installed on the exhaust pipe (18), and a branch pipe (25) is connected to the exhaust pipe (18). A cleaning ring (28) is movably arranged in the suction cylinder (7), and bristles (30) are arranged on the outer wall of the cleaning ring (28). Air bags (29) are symmetrically arranged on the top wall of the cleaning ring (28), and one end of the two branch pipes (25) is respectively connected to the two air bags (29).

5. The coal bunker hydraulic drilling rig dredging device according to claim 4 is characterized in that: A return spring is arranged in the airbag (29), and two ends of the return spring are respectively connected to the top wall and the bottom wall of the airbag (29).

6. The coal bunker hydraulic drilling rig dredging device according to claim 5, characterized in that: The cleaning ring (28) is provided with a cavity therein, and an array of exhaust holes (31) is provided on the side wall of the cleaning ring (28), and the exhaust holes (31) are located below the bristles (30). A first ventilation hole (33) is provided between the cavity of the cleaning ring (28) and the air bag (29). A first wedge block (34) is movably provided on the inner side of the cleaning ring (28), and a compression spring (35) is connected between the first wedge block (34) and the inner wall of the cavity of the cleaning ring (28). A second ventilation hole (36) is provided on the first wedge block (34), and a second wedge block (32) is symmetrically provided on the inner surface of the bottom wall of the suction cylinder (7). A sealing ring (37) is provided on the inner surface of the bottom wall of the suction cylinder (7), and the inner diameter of the sealing ring (37) is adapted to the outer diameter of the cleaning ring (28).

7. The coal bunker hydraulic drilling rig dredging device according to claim 4, characterized in that: Two second guide rods (26) are fixed between the top wall and the bottom wall of the suction cylinder (7), and a movable block (27) is movably mounted on the second guide rod (26). One end of the two movable blocks (27) is fixedly connected to a cleaning ring (28) respectively.

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