Reversible dust collection device suitable for slag pool

Abstract

The turnover dust collection device comprises a traction mechanism, a dust collection cover, a telescopic pipeline, a bent pipe I, a bent pipe II and a main exhaust pipe, the dust collection cover is arranged on the slag pool in an openable and closable mode, the traction mechanism is connected with the dust collection cover and used for driving the dust collection cover to be turned over and opened, one end of the bent pipe I is communicated with the top end of the dust collection cover, and the other end of the bent pipe II is communicated with the main exhaust pipe. Compared with the prior art, dust and water vapor can be effectively prevented from escaping, operation is convenient, and the structure is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of treatment of environmental pollutants generated during steel production, and in particular to the technical field of a reversible dust collecting device suitable for a slag pool. Background Art

[0002] During the smelting process of steel production, a large amount of high-temperature liquid slag is produced. In order to effectively process the slag and separate the iron and other impurities in the slag, the slag needs to be watered, cooled and steamed first, and then subjected to a system of subsequent treatment to achieve comprehensive resource utilization. In this process, a large amount of dust and water vapor are generated, which has a great impact on the surrounding environment and on-site operations. With the increase in the intensity of national environmental protection governance, the Ministry of Ecology and Environment issued the "Draft for Comments on the Ultra-low Emission Transformation Work Plan for Steel Enterprises" in May 2018, proposing that the particulate matter emission concentration in this process should be less than or equal to 10mg / m 3 Therefore, it is very important to collect and treat the pollutants in the process of pumping water and cooling the slag. The existing technology basically does not adopt relevant measures or simply adopts fencing.

[0003] If no measures are taken, the environment at the production site will be very harsh, posing hidden dangers to production safety and affecting the health of the workers.

[0004] Although the use of fencing improves safety, the effect of fencing is poor, and there is still the phenomenon of dust and moisture escaping. In addition, when dumping and cleaning the slag, it is necessary to move the fencing and other operations, which makes the operation inconvenient. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to propose a reversible dust collecting device suitable for a slag pool, which can effectively prevent dust and water vapor from escaping, and is easy to operate and has a simple structure.

[0006] To achieve the above-mentioned purpose, the present invention proposes a flippable dust collecting device suitable for a slag pool, comprising a pulling mechanism, a dust collecting hood, a telescopic pipe, an elbow I, an elbow II and a main exhaust pipe. The dust collecting hood can be opened and closed on the slag pool, and the pulling mechanism is connected to the dust collecting hood to drive it to flip open. One end of the elbow I is connected to the top of the dust collecting hood, and the other end of the elbow I is connected to one end of the elbow II through the telescopic pipe, and the other end of the elbow II is rotatably connected to the main exhaust pipe.

[0007] Preferably, the dust collecting hood is a hollow trapezoidal structure with an open lower end and a closed upper end. A support frame is provided around the lower end of the dust collecting hood, and a rotating shaft is provided at the rear end of the support frame. Both ends of the rotating shaft are provided with rotatable sleeves, and the sleeves are fixedly connected to the support baffle provided on the slag pool.

[0008] Preferably, the pulling mechanism includes a movable pulley, a fixed pulley, a metal rope, a fixed seat and a winch, the fixed seat is provided with a fixed pulley, the front side of the dust collecting hood is provided with a movable pulley, a metal rope is wound around the movable pulley and the fixed pulley, one end of the metal rope is fixedly connected to the rope fixing block on the fixed seat, and the other end of the metal rope is fixedly connected to the winch, and the winch is used to wind the metal rope.

[0009] Preferably, the telescopic pipe includes an outer sleeve and a telescopic tube passing through the outer sleeve, and a sealing ring is provided between the outer sleeve and the telescopic tube.

[0010] Preferably, the main exhaust pipe is sleeved on the corresponding end of the elbow II, and a sealing ring is provided between the main exhaust pipe and the elbow II.

[0011] Preferably, a support mechanism is provided on the slag pool for supporting the dust collecting hood, and the support mechanism includes a base, a support arm, a roller, a wheel axle, an upper block bar, a lower block bar and a block wheel body, the base is provided with an upper block bar and a lower block bar, the rear end of the upper block bar is provided with a downward guide rail arranged to be inclined downward, and the front end of the lower block bar is provided with an upward guide rail arranged to be inclined upward, one end of the support arm is hingedly connected to the supporting dust collecting hood, and the other end is provided with a slidable wheel axle, and the end of the wheel axle facing the upper block bar is provided with a roller close to the upper block bar and rolling on the base, and the base is provided with a block wheel body close to the downward guide rail on the path where the roller rolls backward.

[0012] The beneficial effects of the present invention are as follows: the dust collecting hood is set on the slag pool in an openable and closable manner, a pulling mechanism is connected to the dust collecting hood to drive it to flip open, one end of the bend pipe I is connected to the top of the dust collecting hood, the other end of the bend pipe I is connected to one end of the bend pipe II through a telescopic pipe, and the other end of the bend pipe II is rotatably connected to the main exhaust pipe, so that dust and water vapor are effectively prevented from escaping through the dust collecting hood, and the dust collecting hood is flipped open by pulling the pulling mechanism, which is convenient for dumping and cleaning slag, and the dust and water vapor are transported to corresponding processing equipment for centralized treatment through the cooperation of the bend pipe I, the telescopic pipe, the bend pipe II and the main exhaust pipe. Compared with the existing technology, it can effectively prevent dust and water vapor from escaping, and is easy to operate and has a simple structure.

[0013] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a reversible dust collecting device suitable for a slag pool according to the present invention; Figure 2 yes Figure 1 Schematic diagram of the middle A direction; Figure 3This is a schematic diagram of the dust hood opening; Figure 4 It is a schematic diagram of the top view of the support mechanism.

[0015] In the figure: 1- pulling mechanism, 2- dust collecting hood, 3- telescopic pipe, 4- elbow I, 5- elbow II, 6- main exhaust pipe, 7- support frame, 8- support baffle, 9- slag pool, 10- sealing ring, 11- movable pulley, 12- fixed pulley, 13- metal rope, 14- fixed seat, 15- winch, 20- bushing, 21- rotating shaft, 31- outer sleeve, 32- telescopic pipe, 90- support mechanism, 901- base, 902- support arm, 903- roller, 904- axle, 905- upper baffle, 906- lower baffle, 907- baffle wheel body, 908- downward guide rail, 909- upward guide rail, 910- backward rolling path, 911- forward rolling path. DETAILED DESCRIPTION

[0016] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present invention provides a reversible dust collecting device suitable for a slag pool, comprising a pulling mechanism 1, a dust collecting hood 2, a telescopic pipe 3, an elbow I4, an elbow II5 and a main exhaust pipe 6. The dust collecting hood 2 can be opened and closed on the slag pool 9. The pulling mechanism 1 is connected to the dust collecting hood 2 to drive it to flip open. One end of the elbow I4 is connected to the top of the dust collecting hood 2, and the other end of the elbow I4 is connected to one end of the elbow II5 through the telescopic pipe 3. The other end of the elbow II5 is rotatably connected to the main exhaust pipe 6.

[0017] The dust collecting hood 2 is a hollow trapezoidal structure with an open lower end and a closed upper end. A support frame 7 is provided around the lower end of the dust collecting hood 2. A rotating shaft 21 is provided at the rear end of the supporting frame 7. Both ends of the rotating shaft 21 are provided with a rotatable shaft sleeve 20. The shaft sleeve 20 is fixedly connected to the support baffle 8 provided on the slag pool 9.

[0018] The pulling mechanism 1 includes a movable pulley 11, a fixed pulley 12, a metal rope 13, a fixed seat 14 and a winch 15. The fixed pulley 12 is provided on the fixed seat 14, and the front side of the dust collecting hood 2 is provided with a movable pulley 11. The metal rope 13 is wound around the movable pulley 11 and the fixed pulley 12. One end of the metal rope 13 is fixedly connected to the rope fixing block 16 on the fixed seat 14, and the other end of the metal rope 13 is fixedly connected to the winch 15. The winch 15 is used to wind the metal rope 13.

[0019] The telescopic pipe 3 includes an outer sleeve 31 and a telescopic tube 32 inserted into the outer sleeve 31 . A sealing ring 10 is provided between the outer sleeve 31 and the telescopic tube 32 .

[0020] The main exhaust pipe 6 is sleeved on the corresponding end of the elbow II5, and a sealing ring 10 is provided between the main exhaust pipe 6 and the elbow II5.

[0021] The slag pool 9 is provided with a support mechanism 90 for supporting the dust collecting hood 2. The support mechanism 90 includes a base 901, a support arm 902, a roller 903, a wheel axle 904, an upper stop bar 905, a lower stop bar 906 and a stop wheel body 907. The base 901 is provided with an upper stop bar 905 and a lower stop bar 906. The rear end of the upper stop bar 905 is provided with a downward guide rail 908 arranged to be inclined downward, and the front end of the lower stop bar 906 is provided with an upward guide rail 909 arranged to be inclined upward. One end of the support arm 902 is hingedly connected to the supporting dust collecting hood 2, and the other end is provided with a slidable wheel axle 904. The end of the wheel axle 904 facing the upper stop bar 905 is provided with a roller 903 close to the upper stop bar 905 and rolling on the base 901. The base 901 is provided with a stop wheel body 907 close to the downward guide rail 908 on the path where the roller 903 rolls backward.

[0022] Working process of the present invention: In the working process of the reversible dust collecting device suitable for the slag pool of the present invention, the dust and moisture generated by slag flushing enter the dust collecting hood 2, and then pass through the elbow I4, the telescopic pipe 3, the elbow II5 and the main exhaust pipe 6 in sequence, and finally enter the corresponding processing equipment for centralized processing.

[0023] When the dust collecting hood 2 is opened, the hoist 15 is started to work, and the hoist 15 winds up the metal rope 13, and through the cooperation of the movable pulley 11 and the fixed pulley 12, the dust collecting hood 2 is pulled clockwise to open.

[0024] During the process of the dust hood 2 rotating clockwise to open, the roller 903 is pulled by the support arm 902 to roll along the backward rolling path 910 on the base 901. When the roller 903 passes the wheel blocking body 907, the winch 15 stops working. At this time, the wheel blocking body 907 blocks the front end of the roller 903. When the dust hood 2 rotates counterclockwise to close, the dust hood 2 pushes the roller 903 to roll forward through the support arm 902, but the roller 903 is blocked by the wheel blocking body 907 and cannot move forward, thereby supporting the dust hood 2 and preventing the dust hood 2 from closing, improving the reliability of the dust hood 2 after opening, and further improving the safety of use.

[0025] When the dust hood 2 needs to be closed, the hoist 15 is started to work and drive the dust hood 2 to rotate clockwise, and the roller 903 is pulled by the support arm 902 to roll backward along the base 901. When the roller 903 passes the downward guide rail 908, the downward guide rail 908 forces the roller 903 to move downward, and the roller 903 drives the wheel shaft 904 to slide downward, so that the roller 903 enters the forward rolling path 911 from the backward rolling path 910, so that the roller 903 avoids the blocking wheel body 907, and then Then start the winch 15 to unwind. At this time, the dust hood 2 rotates counterclockwise under its own weight to close. During the closing process, the dust hood 2 pushes the roller 903 to roll forward along the forward rolling path 911 through the support arm 902. When the roller 903 passes the upward guide rail 909, the upward guide rail 909 forces the roller 903 to move upward, so that the roller 903 re-enters the backward rolling path 910 from the forward rolling path 911. At this time, the dust hood 2 is also closed.

[0026] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A reversible dust collecting device suitable for a slag pool, characterized by: The utility model comprises a pulling mechanism (1), a dust collecting hood (2), a telescopic pipe (3), an elbow I (4), an elbow II (5) and a main exhaust pipe (6); the dust collecting hood (2) is openably and closably arranged on the slag pool (9); the pulling mechanism (1) is connected to the dust collecting hood (2) to drive the dust collecting hood to flip open; one end of the elbow I (4) is connected to the top end of the dust collecting hood (2); the other end of the elbow I (4) is connected to one end of the elbow II (5) through the telescopic pipe (3); and the other end of the elbow II (5) is rotatably connected to the main exhaust pipe (6).

2. A reversible dust collecting device suitable for a slag pool according to claim 1, characterized in that: The dust collecting hood (2) is a hollow trapezoidal structure with an open lower end and a closed upper end. A support frame (7) is provided around the lower end of the dust collecting hood (2). A rotating shaft (21) is provided at the rear end of the support frame (7). Both ends of the rotating shaft (21) are sleeved with rotatable shaft sleeves (20). The shaft sleeves (20) are fixedly connected to a support baffle (8) provided on the slag pool (9).

3. The reversible dust collecting device for a slag pool according to claim 1, characterized in that: The pulling mechanism (1) comprises a movable pulley (11), a fixed pulley (12), a metal rope (13), a fixed seat (14) and a hoist (15); the fixed pulley (12) is provided on the fixed seat (14); the front side of the dust collecting hood (2) is provided with a movable pulley (11); the movable pulley (11) and the fixed pulley (12) are wound with a metal rope (13); one end of the metal rope (13) is fixedly connected to a rope fixing block (16) on the fixed seat (14); the other end of the metal rope (13) is fixedly connected to the hoist (15); and the hoist (15) is used for winding the metal rope (13).

4. The reversible dust collecting device for a slag pool according to claim 1, characterized in that: The telescopic pipe (3) comprises an outer sleeve (31) and a telescopic tube (32) passing through the outer sleeve (31), and a sealing ring (10) is provided between the outer sleeve (31) and the telescopic tube (32).

5. The reversible dust collecting device for a slag pool according to claim 1, characterized in that: The main exhaust pipe (6) is sleeved on the corresponding end of the elbow II (5), and a sealing ring (10) is provided between the main exhaust pipe (6) and the elbow II (5).

6. The reversible dust collecting device for a slag pool according to claim 1, characterized in that: The slag pool (9) is provided with a support mechanism (90) for supporting the dust collecting hood (2), the support mechanism (90) comprising a base (901), a support arm (902), a roller (903), a wheel axle (904), an upper stop bar (905), a lower stop bar (906) and a stop wheel body (907), the base (901) is provided with an upper stop bar (905) and a lower stop bar (906), the rear end of the upper stop bar (905) is provided with a downward guide rail (908) arranged to be tilted downward, the lower stop bar (906) is provided with a downward guide rail (908) arranged to be tilted downward. An upward guide rail (909) is provided at the front end, and one end of the support arm (902) is hingedly connected to the supporting dust collecting cover (2), and the other end is provided with a slidable wheel shaft (904). One end of the wheel shaft (904) facing the upper stop bar (905) is provided with a roller (903) close to the upper stop bar (905) and rolling on the base (901). The base (901) is provided with a stop wheel body (907) close to the downward guide rail (908) on a backward rolling path 910 of the roller (903).

Images