CN113926253B - Tail gas discharge pipeline for wet steel slag drying process - Google Patents

Abstract

The present invention relates to the technical field of industrial tail gas treatment, in particular to a tail gas discharge pipe for the drying process of wet steel slag, including an exhaust pipe, and the exhaust pipe is connected with an impurity removal mechanism, and the impurity removal mechanism includes a first plate frame, a first filter screen, and a bottom cylinder, the first plate frame is slidably connected to the inner wall of the exhaust pipe, the first filter screen is fixedly connected to the inside of the first plate frame, and the row The bottom of the air pipe is fixedly connected with the bottom cylinder, and the inner wall of the exhaust pipe is connected with a driving mechanism, and the driving mechanism includes a fixed rod, a motor, a rotating shaft, fan blades, a fixed plate, a first sprocket, a second sprockets, chains, connecting plates and slide bars, the inner wall of the exhaust pipe is fixedly connected with the fixed rod, the fixed rod is fixedly connected with the motor, and the rotating shaft is fixedly connected with the fan blade , can remove harmful exhaust gas when drying wet steel slag, and then discharge clean exhaust gas.

Description

Exhaust gas discharge pipe for wet steel slag drying process

technical field

The invention relates to an exhaust pipe, in particular to a tail gas discharge pipe used in the drying process of wet steel slag, and belongs to the technical field of industrial tail gas treatment.

Background technique

Wet steel slag is a by-product of the steelmaking process, which is formed by the oxidation of silicon, manganese, phosphorus, sulfur and other impurities in pig iron during the smelting process and the salts formed by the reaction of these oxides and solvents. composition. Steel slag contains a variety of useful components, such as 2% to 8% of metallic iron, 40% to 60% of calcium oxide, 3% to 10% of magnesium oxide, and 1% to 8% of manganese oxide, so it can be used as raw material for iron and steel metallurgy. The mineral composition of steel slag is mainly tricalcium silicate, followed by dicalcium silicate, RO phase, dicalcium ferrite and free calcium oxide. Steel slag is clinker, which is a heavy melting phase and has a low melting temperature.

Since the wet steel slag also contains some sulfides, harmful gases such as carbon monoxide and sulfur dioxide will be produced during the drying process of the steel slag. In order to reduce the pollution to the working environment during the drying process of the wet steel slag, a A discharge pipeline that can remove exhaust gas is used to deal with these harmful gases.

Contents of the invention

The object of the present invention is to provide a tail gas discharge pipe for the drying process of wet steel slag in order to solve the above problems, which can remove harmful tail gas and discharge clean tail gas when drying wet steel slag.

The present invention achieves the above object through the following technical solutions, a tail gas discharge pipe for the wet steel slag drying process, including an exhaust pipe, the exhaust pipe is connected with an impurity removal mechanism, and the impurity removal mechanism includes a first plate frame , the first filter screen and the bottom cylinder, the inner wall of the exhaust pipe is slidably connected with the first plate frame, the inside of the first plate frame is fixedly connected with the first filter screen, and the exhaust pipe The bottom of the exhaust pipe is fixedly connected with the bottom cylinder, and the inner wall of the exhaust pipe is connected with a driving mechanism, and the driving mechanism includes a fixed rod, a motor, a rotating shaft, fan blades, a fixed plate, a first sprocket, and a second sprocket , a chain, a connecting plate and a slide bar, the inner wall of the exhaust pipe is fixedly connected with the fixed rod, the fixed rod is fixedly connected with the motor, the motor is movably connected with the rotating shaft, the The fan blade is fixedly connected to the rotating shaft, the fixed plate is fixedly connected to the top of the exhaust pipe, the first sprocket is rotatably connected to the fixed plate, and the second sprocket is fixedly connected to the rotating shaft. Two sprockets, the first sprocket and the second sprocket are jointly meshed with the chain, the top of the first plate frame is fixedly connected with the connecting plate, and the first sprocket is fixedly connected with a The sliding rod is slidably connected with the connecting plate, the exhaust pipe is connected with a fixing mechanism, and the exhaust pipe is connected with a limiting mechanism.

Preferably, the impurity removal mechanism further includes a second plate frame and a second filter screen, the second plate frame is fixedly connected to the inner wall of the exhaust pipe, and the inner wall of the second plate frame is fixedly connected to the second filter.

Preferably, the fixing mechanism includes a sliding groove, a sliding sleeve and a rubber pad, two sliding grooves are opened on the inner wall of the exhaust pipe, and the sliding sleeve is slidingly connected inside the two sliding grooves, The rubber pad is fixedly connected to the sliding sleeve.

Preferably, the fixing mechanism further includes a first rack, a fixed sleeve, a limit block, an arc rack, an arc hole, and a clamping rod, and the inner walls of the two slide slots are slidably connected with the first rack, the inner wall of the exhaust pipe is fixedly connected with two fixed sleeves, the inner walls of the two fixed sleeves are fixedly connected with the limiting blocks, and the two limiting blocks slide The arc-shaped racks are connected, and the two arc-shaped racks are respectively meshed with the two first racks, and the arc-shaped holes are opened on the two arc-shaped racks. The limiting blocks are respectively slidably connected to the insides of the two arc-shaped holes, and the clamp rods are fixedly connected to the two arc-shaped racks.

Preferably, the limit mechanism includes a pull rod and a second rack, the pull rod is slidably connected to the exhaust pipe, two of the second racks are fixedly connected to the pull rod, and the two second racks are fixedly connected to the pull rod. The two racks are both slidingly connected to the inner wall of the exhaust pipe, and the two second racks are meshed with the two first racks respectively.

Preferably, the limiting mechanism further includes a fixed block and a spring, two fixed blocks are fixedly connected to the exhaust pipe, one end of the spring is fixedly connected to the two fixed blocks, two The other end of the spring is respectively fixedly connected with the two ends of the pull rod.

Preferably, the diameter of the first sprocket is larger than that of the second sprocket, and the blades and the first filter are respectively located on both sides of the second filter.

The beneficial effects of the present invention are: the exhaust pipe can be facing the exhaust pipe, and the pull rod can be pulled so that the second rack no longer meshes with the first rack, so that the first rack can slide, and at this time, the pipe can be inserted into the row In the trachea, the pipe resists the sliding sleeve, and then drives the sliding sleeve to slide. During the sliding process, the sliding sleeve drives the first rack to slide, and the first rack slides to drive the arc-shaped rack that meshes with it to rotate. When the arc-shaped rack rotates, The clamp rod moves accordingly, and then clamps the exhaust pipe. After the pipe is clamped, the curved rack can no longer rotate, so the sliding sleeve and the rubber pad can no longer move. At this time, the pull rod is released, and the pull rod is under the action of the spring. Reset, the first rack and the second rack are re-engaged, the first rack is stuck, so the exhaust pipe is also fixed; at this time, the motor is turned on, the output shaft of the motor rotates to drive the rotation of the shaft, and the rotation of the shaft drives the rotation of the fan blades. Generate suction, the suction passes through the first filter and the second filter, sucking the exhaust gas in the exhaust pipe into the exhaust pipe, while the motor rotates, it drives the chain drive, the chain makes the first sprocket rotate, the first sprocket The rotation drives the slide bar to rotate, and then drives the connecting plate to move up and down, and the connecting plate drives the first plate frame to move up and down, so the first plate frame and the first filter screen are continuously immersed in the bottom tank, and then move up, and the bottom tank advances Put in chemicals that can absorb harmful gases in the exhaust, so the first filter can be dipped in chemicals during the up and down movement, and then return to the exhaust pipe, and when the exhaust passes through the first filter, the harmful gases in it will be released It reacts with the medicament on the first filter, so that there is very little harmful gas in the gas passing through the first filter, and the second filter is used to intercept a small amount of medicament blown off the first filter when the air flow is in circulation.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the present invention;

Fig. 3 is a schematic diagram of the enlarged structure of part A shown in Fig. 2 in the present invention;

Fig. 4 is the connection structure schematic diagram of pull bar and spring among the present invention;

Fig. 5 is an exploded view of the connection structure between the curved rack and the limit block in the present invention;

Fig. 6 is a schematic diagram of the connection structure between the sliding sleeve and the rubber pad in the present invention;

Fig. 7 is a schematic diagram of the three-dimensional structure of the sliding sleeve and the rubber pad in the present invention.

In the figure: 1. exhaust pipe; 2. impurity removal mechanism; 21. first plate frame; 22. first filter screen; 23. bottom cylinder; 24. second plate frame; 25. second filter screen; 3. Drive mechanism; 31, fixed rod; 32, motor; 33, rotating shaft; 34, fan blade; 35, fixed plate; 36, first sprocket wheel; 37, second sprocket wheel; 38, chain; 39, connecting plate; 310 , sliding rod; 4, fixing mechanism; 41, chute; 42, sliding sleeve; 43, rubber pad; 44, first rack; 45, fixed sleeve; 46, limit block; 47, arc rack; 48 , arc-shaped hole; 49, clamping rod; 5, limit mechanism; 51, pull rod; 52, second rack; 53, fixed block; 54, spring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-7, a kind of tail gas discharge pipe for wet steel slag drying process, including exhaust pipe 1, is connected with impurity removal mechanism 2 on the exhaust pipe 1, and the impurity removal mechanism 2 includes first A plate frame 21, a first filter screen 22 and a bottom cylinder 23, the first plate frame 21 is slidably connected to the inner wall of the exhaust pipe 1, and the first plate frame 21 is fixedly connected to the inside of the first plate frame 21. The filter screen 22, the bottom of the exhaust pipe 1 is fixedly connected with the bottom cylinder 23, the inner wall of the exhaust pipe 1 is connected with a driving mechanism 3, and the driving mechanism 3 includes a fixed rod 31, a motor 32, a rotating shaft 33. Fan blade 34, fixed plate 35, first sprocket 36, second sprocket 37, chain 38, connecting plate 39 and slide bar 310, the inner wall of the exhaust pipe 1 is fixedly connected with the fixed bar 31 , the fixed rod 31 is fixedly connected with the motor 32, the motor 32 is movably connected with the rotating shaft 33, the rotating shaft 33 is fixedly connected with the fan blade 34, the top of the exhaust pipe 1 The fixed plate 35 is fixedly connected, the first sprocket 36 is rotatably connected on the fixed plate 35, the second sprocket 37 is fixedly connected on the rotating shaft 33, the first sprocket 36 and The chain 38 is engaged with the second sprocket 37, the connecting plate 39 is fixedly connected to the top of the first plate frame 21, the slide bar 310 is fixedly connected to the first sprocket 36, The sliding rod 310 is slidably connected to the connecting plate 39 , the fixing mechanism 4 is connected to the exhaust pipe 1 , and the limit mechanism 5 is connected to the exhaust pipe 1 .

As a technical optimization solution of the present invention, the impurity removal mechanism 2 further includes a second plate frame 24 and a second filter screen 25, the second plate frame 24 is fixedly connected to the inner wall of the exhaust pipe 1, The second filter screen 25 is fixedly connected to the inner wall of the second plate frame 24 .

As a technical optimization solution of the present invention, the fixing mechanism 4 includes a sliding groove 41, a sliding sleeve 42 and a rubber pad 43, two sliding grooves 41 are opened on the inner wall of the exhaust pipe 1, and the two sliding grooves 41 are provided. The sliding sleeve 42 is slidably connected to the inside of the chute 41 , and the rubber pad 43 is fixedly connected to the sliding sleeve 42 .

As a technical optimization solution of the present invention, the fixing mechanism 4 also includes a first rack 44, a fixing sleeve 45, a limit block 46, an arc rack 47, an arc hole 48 and a clamping rod 49. The inner wall of the chute 41 is slidably connected with the first rack 44, the inner wall of the exhaust pipe 1 is fixedly connected with two fixed sleeves 45, and the inner walls of the two fixed sleeves 45 are The limiting blocks 46 are fixedly connected, and the arc-shaped racks 47 are slidably connected on the two limiting blocks 46, and the two arc-shaped racks 47 are connected with the two first racks respectively. 44 are engaged with each other, the two arc-shaped racks 47 are provided with the arc-shaped holes 48, the two limit blocks 46 are respectively slidably connected to the inside of the two arc-shaped holes 48, and the two arc-shaped holes 48 The clamp rods 49 are fixedly connected to the curved racks 47 .

As a technical optimization solution of the present invention, the limit mechanism 5 includes a pull rod 51 and a second rack 52, the pull rod 51 is slidably connected to the exhaust pipe 1, and two racks are fixedly connected to the pull rod 51. The two second racks 52 are slidably connected to the inner wall of the exhaust pipe 1, and the two second racks 52 are connected to the two first racks respectively. 44 are meshed.

As a technical optimization solution of the present invention, the limit mechanism 5 also includes a fixed block 53 and a spring 54, two fixed blocks 53 are fixedly connected to the exhaust pipe 1, and the two fixed blocks 53 One end of the spring 54 is fixedly connected to each of them, and the other ends of the two springs 54 are respectively fixedly connected to the two ends of the pull rod 51 .

As a technical optimization solution of the present invention, the diameter of the first sprocket 36 is larger than the diameter of the second sprocket 37, and the fan blade 34 and the first filter screen 22 are respectively located in the second filter Both sides of the net 25.

When the present invention is in use, at first the motor 32 is electrically connected to the external power supply, the exhaust pipe 1 is facing the exhaust gas discharge pipe, and the pull rod 51 is pulled so that the second rack 52 is no longer meshed with the first rack 44, so that The first rack 44 can slide. At this time, the pipe is inserted into the exhaust pipe 1, and the pipe is against the sliding sleeve 42, thereby driving the sliding sleeve 42 to slide. During the sliding process, the sliding sleeve 42 drives the first rack 44 to slide. The bar 44 slides and drives the arc rack 47 meshed with it to rotate. When the arc rack 47 rotates, the clamp bar 49 moves thereupon, and then the exhaust pipe is clamped. After the pipe is clamped, the arc rack 47 cannot Turn again, so the sliding sleeve 42 and the rubber pad 43 can no longer move. At this time, the pull bar 51 is released, and the pull bar 51 resets under the action of the spring 54. The first tooth bar 44 and the second tooth bar 52 are engaged again, and the first tooth bar 44 is blocked, so the exhaust pipe is also fixed; at this time, the motor 32 is turned on, the output shaft of the motor 32 rotates to drive the rotating shaft 33 to rotate, and the rotating shaft 33 rotates to drive the fan blade 34 to rotate to generate suction, and the suction passes through the first filter screen 22 and The second filter screen 25 sucks the exhaust gas in the exhaust pipe into the exhaust pipe 1, and when the motor 32 rotates, it drives the chain 38 to drive, the chain 38 rotates the first sprocket 36, and the rotation of the first sprocket 36 drives the slide The rod 310 rotates, and then drives the connecting plate 39 to move up and down, and the connecting plate 39 drives the first plate frame 21 to move up and down, so the first plate frame 21 and the first filter screen 22 are constantly immersed in the lower cylinder 23, and then move up, Chemical agents that can absorb harmful gases in the exhaust gas are placed in the bottom cylinder 23 in advance, so that the first filter screen 22 can be dipped in the chemical agents during the up and down movement, and then return to the exhaust pipe 1, and then the exhaust gas passes through the first When the filter screen 22 is used, the harmful gas therein reacts with the medicament on the first filter screen 22 to take out, so that the harmful gas in the gas passing through the first filter screen 22 is extremely small, and the second filter screen 25 is used to intercept the flow of air from A small amount of medicament blown off on the first filter screen 22 .

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (1)

1. a kind of wet steel slag drying process tail gas discharge pipeline, comprise exhaust pipe (1), it is characterized in that: described exhaust pipe (1) is connected with impurity removal mechanism (2), described impurity removal mechanism ( 2) comprising a first plate frame (21), a first filter screen (22) and a bottom cylinder (23), the first plate frame (21) is slidably connected to the inner wall of the exhaust pipe (1), so The first filter screen (22) is fixedly connected to the inside of the first plate frame (21), the bottom cylinder (23) is fixedly connected to the bottom of the exhaust pipe (1), and the exhaust pipe ( 1) is connected with a drive mechanism (3) on the inner wall, and the drive mechanism (3) includes a fixed rod (31), a motor (32), a rotating shaft (33), a fan blade (34), a fixed plate (35), a second A sprocket (36), a second sprocket (37), a chain (38), a connecting plate (39) and a slide bar (310), the inner wall of the exhaust pipe (1) is fixedly connected with the fixed bar (31), the fixed rod (31) is fixedly connected with the motor (32), the motor (32) is movably connected with the rotating shaft (33), and the rotating shaft (33) is fixedly connected with a The fan blade (34), the top of the exhaust pipe (1) is fixedly connected with the fixed plate (35), and the fixed plate (35) is rotatably connected with the first sprocket (36), so The second sprocket (37) is fixedly connected to the rotating shaft (33), and the chain (38) is engaged with the first sprocket (36) and the second sprocket (37). The top of the first plate frame (21) is fixedly connected with the connecting plate (39), the first sprocket (36) is fixedly connected with the slide bar (310), and the slide bar (310) is connected with the slide bar (310). The connecting plate (39) is slidingly connected, the exhaust pipe (1) is connected with a fixing mechanism (4), and the exhaust pipe (1) is connected with a limit mechanism (5); The impurity removal mechanism (2) also includes a second plate frame (24) and a second filter screen (25), and the inner wall of the exhaust pipe (1) is fixedly connected with the second plate frame (24), The second filter screen (25) is fixedly connected to the inner wall of the second plate frame (24); The fixing mechanism (4) includes a chute (41), a sliding sleeve (42) and a rubber pad (43), and two chute (41) are provided on the inner wall of the exhaust pipe (1). The sliding sleeve (42) is slidably connected to the inside of each of the chute (41), and the rubber pad (43) is fixedly connected to the sliding sleeve (42); The fixing mechanism (4) also includes a first rack (44), a fixed sleeve (45), a limit block (46), an arc rack (47), an arc hole (48) and a clamping rod (49) The first racks (44) are slidably connected to the inner walls of the two chutes (41), and the two fixed sleeves (45) are fixedly connected to the inner walls of the exhaust pipe (1). , the inner walls of the two fixed sleeves (45) are fixedly connected with the limiting blocks (46), and the two limiting blocks (46) are slidably connected with the arc-shaped racks (47) , the two arc-shaped racks (47) are respectively engaged with the two first racks (44), and the two arc-shaped racks (47) are provided with the arc-shaped holes (48 ), the two limit blocks (46) are respectively slidably connected to the inside of the two arc-shaped holes (48), and the two arc-shaped racks (47) are fixedly connected with the clamp rod ( 49); The limit mechanism (5) includes a pull rod (51) and a second rack (52), the pull rod (51) is slidably connected to the exhaust pipe (1), and the pull rod (51) is fixedly connected to There are two second racks (52), both of which are slidingly connected to the inner wall of the exhaust pipe (1), and the two second racks (52) Engage with the two first racks (44) respectively; The position-limiting mechanism (5) also includes a fixed block (53) and a spring (54), and the exhaust pipe (1) is fixedly connected with two fixed blocks (53), and the two fixed blocks ( 53) are fixedly connected with one end of the spring (54), and the other ends of the two springs (54) are respectively fixedly connected with the two ends of the pull rod (51); The diameter of the first sprocket (36) is larger than the diameter of the second sprocket (37), and the fan blade (34) and the first filter screen (22) are respectively located in the second filter screen ( 25) on both sides.

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