CN214914868U

CN214914868U - Waste gas recovery purifier

Info

Publication number: CN214914868U
Application number: CN202120509605.9U
Authority: CN
Inventors: 耿和平; 胡震宇; 丁建中
Original assignee: Changzhou Yongxiang Chemical Co ltd
Current assignee: Changzhou Yongxiang Chemical Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-30
Anticipated expiration: 2031-03-10

Abstract

The application relates to a waste gas recovery and purification device, which relates to the technical field of sulfuric acid production and comprises a foam tower body, wherein a sieve plate is fixedly connected with the inner peripheral surface of the foam tower body, a slide rod is connected with the side wall of the foam tower body in a sliding manner, an air suction pipe is fixed on the inner peripheral surface of the slide rod, a driving mechanism for driving the air suction pipe to suck air is arranged on the foam tower body, and a sliding mechanism for driving the slide rod to horizontally slide in a reciprocating manner is arranged on the foam tower body; the air suction pipe sucks air, the vent pipe ventilates, and the air suction pipe horizontally slides in a reciprocating manner, so that the air suction pipe sucks impurities on the sieve plate, the possibility of blockage of the sieve plate due to the impurities is reduced, and the filtering efficiency of the sieve plate is easily improved.

Description

Waste gas recovery purifier

Technical Field

The application relates to the technical field of sulfuric acid production, in particular to a waste gas recovery and purification device.

Background

In the preparation process of producing sulfuric acid by using pyrite as a raw material, the main procedures of the preparation process comprise roasting of the pyrite, purification of furnace gas, drying of gas, conversion of sulfur dioxide and absorption of sulfur trioxide. Waste gas is generated in the roasting process, and the waste gas needs to be treated by a cyclone dust collector, a venturi tube, a foam tower and an electric demister in sequence.

The purification system of the sulfuric acid process with the publication number of CN205550021U comprises a foam tower clear liquid pool, a foam tower pump, a primary heat exchanger, a foam tower, a secondary heat exchanger and a venturi tube, wherein the foam tower comprises an upper end enclosure, a plurality of cylinders and a lower end enclosure, the upper end enclosure, the plurality of cylinders and the lower end enclosure are sequentially connected through flanges, and the cylinders are provided with manholes; the foam tower is characterized in that a grid plate and a plurality of sieve plates are arranged in the foam tower, the grid plate is connected with the flange at the uppermost end and is compacted by the flange, the sieve plates are connected with other flanges and are compacted by the flange, and a feeding pipe is arranged at the upper part of the foam tower. The grid plate and the screen plate are arranged at the flange joint of the foam tower, the grid plate is connected with the flange at the uppermost end and is compacted by the flange, the screen plate is connected with other flanges and is compacted by the flange, namely, the outer edges of the grid plate and the screen plate are arranged on the annular sealing surfaces of the two flanges at the joint and are compacted by flange bolts. The foam tower is mainly used for absorbing sulfur trioxide in gas passing through the venturi again, and washing acid is generally adopted for cyclic absorption.

In view of the above-mentioned related art, the inventor believes that impurities of the washing acid remain on the sieve plate, and the impurities are accumulated for a long time to easily cause the blockage of the sieve plate, thereby easily causing the poor waste gas filtering effect of the foam tower.

SUMMERY OF THE UTILITY MODEL

Pile up in order to solve impurity and lead to the poor problem of foam tower filtration waste gas effect at the sieve, this application provides a waste gas recovery purifier.

The application provides a waste gas recovery purifier adopts following technical scheme:

the utility model provides a waste gas recovery purifier, includes the foam tower body, foam tower body inner peripheral face fixedly connected with sieve, foam tower body lateral wall slides and is connected with the slide bar, the slide bar inner peripheral face is fixed with the breathing pipe, be equipped with on the foam tower body and be used for driving the inspiratory actuating mechanism of breathing pipe, be equipped with on the foam tower body and be used for driving the horizontal reciprocating gliding glide mechanism of slide bar.

Through adopting above-mentioned technical scheme, actuating mechanism drive breathing pipe breathes in, opens the breather pipe afterwards, and the slide bar drives the reciprocal slip of breathing pipe level, and then the breathing pipe clears up the impurity on the sieve through the suction to reduce the obstructed possibility of sieve board, improve sieve filtration efficiency.

Optionally, the glide machanism is including the mounting bracket that is fixed in foam tower body one side, the first motor of fixedly connected with on the mounting bracket, the output shaft of first motor is fixed with the supporting disk, the supporting disk off-centre is fixed with the lug, the mounting bracket lateral wall rotates and is connected with the pendulum rod, the spacing groove has been seted up to the pendulum rod, the lug slides through spacing groove and pendulum rod and is connected, the slide bar top is fixed with the rack, the pendulum rod end fixing have with rack toothing's gear.

Through adopting above-mentioned technical scheme, start first motor, first motor output shaft rotates and drives the supporting disk and rotate, and the lug is eccentric motion and drives the pendulum rod swing, and the pendulum rod swing drives the slide bar reciprocating sliding, and then can enlarge breathing pipe clearance scope, has improved the efficiency of breathing pipe clearance.

Optionally, a nozzle is arranged on the inner top surface of the foam tower body, and a swing mechanism for driving the nozzle to swing is arranged on the foam tower body.

Through adopting above-mentioned technical scheme, through setting up the shower nozzle, can clear up foam tower body inner wall, reduce the impurity of adhesion at foam tower inner wall when filtering once more and along with the discharge possibility of washing acid, further improved the filter effect.

Optionally, swing mechanism is including rotating the pivot of connecting in foam tower body top, pivot bottom fixedly connected with wedge, be fixed with the bracing piece on the wedge of wedge, the bracing piece outer peripheral face rotates and is connected with the axle sleeve, the axle sleeve inner peripheral surface is fixed with the shower nozzle, be equipped with the outlet pipe that supplies shower nozzle water on the foam tower body, be equipped with on the foam tower body and be used for driving pivot pivoted drive assembly.

Through adopting above-mentioned technical scheme, drive assembly drive pivot is rotated, and the pivot is rotated and is driven the wedge and rotate, and the shower nozzle can use the pivot to rotate 360 as the axle center afterwards, and then has enlarged the clearance scope of shower nozzle, has improved the effect of clearance foam tower inner wall.

Optionally, a positioning block is fixed to the top of the mounting frame, a fixing groove is formed in the positioning block, and the sliding rod is connected with the positioning block in a sliding mode through the fixing groove.

Through adopting above-mentioned technical scheme, through setting up the locating piece, for the effect that the slide bar provided the support, the possibility of rack one end orientation mounting bracket when reducing incomplete gear drive rack and sliding reduces the perk of rack one end and leads to the condition of slide bar striking foam tower.

Optionally, the driving mechanism comprises an air pump connected to the air suction pipe, the air suction pipe is provided with a control valve, and one end of the air suction pipe, which is far away from the foam tower body, is provided with a collecting box for containing the washing liquid.

Through adopting above-mentioned technical scheme, the air pump absorbs the gas that accompanies the impurity for the breathing pipe and provides power. Through setting up the collection box, reduce the interior waste gas of foam tower and leak the possibility, improve operating personnel's factor of safety.

Optionally, a vent pipe is fixed at the top of the foam tower body.

Through adopting above-mentioned technical scheme, through setting up the breather pipe for the breather pipe ventilates when the breathing pipe is breathed in, helps foam tower body internal gas pressure stable, reduces the possibility that the washing liquid suck the breathing pipe backward.

Optionally, a filter screen is mounted on the inner circumferential surface of the air suction pipe.

Through adopting above-mentioned technical scheme, through setting up the filter screen, can be so that solid impurity and gaseous impurity separation, the operating personnel of being convenient for clears up impurity, reduces operating personnel's work load.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the spray head sprays water towards the inner wall of the foam tower body, so that the possibility that impurities adhered to the inner wall of the foam tower are discharged along with washing acid during secondary filtration is easily reduced, and the filtration effect is improved;

2. the shower nozzle can use the pivot to rotate as 360 degrees in axle center, has easily enlarged the clearance scope of shower nozzle, and the shower nozzle sprays more evenly towards foam tower body inner wall, and then further improves the effect of clearance foam tower inner wall.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

FIG. 2 is a schematic view of the internal structure of the foam tower body of this embodiment.

Fig. 3 is a partially enlarged schematic view at a in fig. 1.

Fig. 4 is a partially enlarged schematic view at B in fig. 2.

Description of reference numerals: 1. a foam tower body; 11. a main acid-distributing pipe; 111. acid-separating branch pipes; 12. a feed pipe; 13. a discharge pipe; 14. a breather pipe; 15. a second motor; 16. a water outlet pipe; 17. a drain pipe; 2. a mixed acid tank; 3. a sieve plate; 4. a slide bar; 41. an air intake duct; 411. an arc tube; 4111. a suction hole; 412. a filter screen; 42. a rack; 5. a drive mechanism; 51. an air pump; 52. a control valve; 6. a sliding mechanism; 61. a mounting frame; 62. a first motor; 63. a support disc; 64. a bump; 65. a swing rod; 651. a limiting groove; 652. a gear; 66. positioning blocks; 661. fixing grooves; 7. a collection box; 8. a rotating shaft; 81. a wedge block; 82. a support bar; 83. a shaft sleeve; 84. and (4) a spray head.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses exhaust gas recovery purifier. Referring to fig. 1 and 2, a waste gas recovery purifier includes foam tower body 1, and foam tower body 1 lateral wall is fixed with and divides acid main pipe 11, and foam tower body 1 bottom is fixed with inlet pipe 12, and foam tower body 1 bottom is fixed with row material pipe 13, arranges that material pipe 13 bottom is fixed with mixed acid pond 2, and inlet pipe 12 carries waste gas in foam tower body 1. The washing acid washes the waste gas conveyed by the feeding pipe 12, and then the filtrate is conveyed to the mixed acid tank 2 through the discharging pipe 13, and the subsequent processes are carried out in the mixed acid tank 2. Acid distribution main pipe 11 is located foam tower body 1 internal fixation and has two rows of branch pipes 111 that divide the acid that the array set up, and branch pipe 111 is vertical to be 45 contained angles and sets up, through setting up branch pipe 111 that divides the acid, and the washing acid can evenly distributed, improves the effect that the washing acid filtered waste gas. The top of the inner peripheral surface of the foam tower body 1 is fixed with a sieve plate 3, the side wall of the foam tower body 1 is connected with a slide rod 4 in a sliding manner along the horizontal direction, the inner peripheral surface of the slide rod 4 is fixed with an air suction pipe 41, the air suction pipe 41 is positioned at one end of the foam tower body 1 and is fixed with an arc-shaped pipe 411, and the side wall and the bottom of the arc-shaped pipe 411 are provided with air suction holes 4111. By arranging the arc-shaped pipe 411, the air suction range of the air suction pipe 41 is enlarged, and the efficiency of the air suction pipe 41 for sucking impurities is improved. A vent pipe 14 may be fixed on the top of the foam tower body 1. When the air suction pipe 41 sucks air, the air pipe 14 is ventilated, and the air pressure in the foam tower can be stabilized. The foam tower body 1 is provided with a driving mechanism 5 for driving the air suction pipe 41 to suck air, and the foam tower body 1 is provided with a sliding mechanism 6 for driving the sliding rod 4 to slide back and forth.

Referring to fig. 2 and 3, the sliding mechanism 6 includes an installation frame 61 fixed on one side of the foam tower body 1, a first motor 62 is fixed on the top of the installation frame 61, a support plate 63 is fixed on the output shaft of the first motor 62 after passing through the installation frame 61, a protruding block 64 is eccentrically fixed on one side of the support plate 63 away from the installation frame 61, a swing rod 65 is rotatably connected to the side wall of the installation frame 61, and the rotation axis of the swing rod 65 is parallel to the rotation axis of the output shaft of the first motor 62. The swing rod 65 is provided with a strip-shaped limiting groove 651, and the bump 64 is connected with the swing rod 65 in a sliding manner through the limiting groove 651. The top of the sliding rod 4 is fixed with a rack 42, and the bottom of the swinging rod 65 is fixed with a gear 652 engaged with the rack 42. The convex block 64 is eccentrically arranged on the disc surface of the supporting disc 63, so that the swing rod 65 swings along the motion track of the convex block 64, and then the rack 42 at the bottom of the swing rod 65 can be driven to slide in a reciprocating manner, and further the reciprocating movement of the air suction pipe 41 is realized. The top of the mounting frame 61 is fixed with a positioning block 66, the top of the positioning block 66 is provided with a fixing groove 661, and the slide rod 4 is connected with the positioning block 66 through the fixing groove 661 in a sliding manner. The positioning block 66 provides support for the sliding rod 4, and improves the sliding stability of the sliding rod 4.

Referring to fig. 2 and 3, the driving mechanism 5 includes an air pump 51 connected to the air suction pipe 41, the air pump 51 is fixed to the top of the mounting bracket 61, the control valve 52 is fixed to the outer peripheral surface of the air suction pipe 41, the collecting box 7 is fixed to one end of the air suction pipe 41 away from the bubble column, the collecting box 7 is fixed to the top of the mounting bracket 61, and the collecting box 7 contains the washing acid for absorbing the exhaust gas. The suction pipe 41 is obliquely disposed between the air pump 51 and the collecting box 7 to reduce the possibility of the washing acid flowing backward into the suction pipe 41. A filter screen 412 is fixed to the air suction pipe 41 between the air pump 51 and the collecting box 7. The filter screen 412 can separate solid impurities from gas impurities, so that operators can clean the impurities easily, and the working efficiency is improved. Meanwhile, in order to clean the inner wall of the foam tower body 1, a water outlet pipe 16 is fixed on the foam tower body 1, a water outlet pipe 17 is fixed at the bottom of the foam tower body 1, and the water outlet pipe 17 is used for outputting water filtered by the water outlet pipe 16.

Referring to fig. 4, a second motor 15 is fixed on the top of the foam tower body 1, a rotating shaft 8 is fixed on an output shaft of the second motor 15, and the rotating shaft 8 is rotatably connected with the inner circumferential surface of the foam tower body 1. The bottom of the rotating shaft 8 is fixed with a wedge block 81, and the wedge surface of the wedge block 81 is far away from the second motor 15. A support rod 82 is fixed on the wedge-shaped surface of the wedge block 81, a shaft sleeve 83 is rotatably connected on the outer peripheral surface of the support rod 82, a spray head 84 is fixed on the inner peripheral surface of the shaft sleeve 83, the top of the spray head 84 is abutted against the bottom of the support rod 82, and the water outlet pipe 16 is fixedly connected with the inner peripheral surface of the shaft sleeve 83. The water outlet pipe 16 is a flexible water pipe, so that the possibility that the water outlet pipe 16 is dragged with the foam tower body 1 due to the rotation of the shaft sleeve 83 can be reduced.

The implementation principle of the waste gas recovery and purification device in the embodiment of the application is as follows: an operator starts the air pump 51, then opens the air pipe 14 and starts the first motor 62, an output shaft of the first motor 62 rotates to drive the supporting plate 63 to rotate, the supporting plate 63 rotates to drive the lug 64 to revolve along the supporting plate 63, the lug 64 revolves along the supporting plate 63 to drive the swing rod 65 to swing, the swing rod 65 swings to drive the gear 652 to swing, the gear 652 swings to drive the rack 42 to horizontally slide, the rack 42 slides to drive the sliding rod 4 to slide, the sliding rod 4 slides to drive the air suction pipe 41 to slide in a reciprocating manner, and the air suction pipe 41 can clean impurities on the sieve plate 3; the second motor 15 is started, the output shaft of the second motor 15 rotates to drive the rotating shaft 8 to rotate, the rotating shaft 8 rotates to drive the wedge block 81 to rotate, the wedge block 81 rotates to drive the supporting rod 82 to rotate, and the spray head 84 rotates by 360 degrees along the rotating axis of the output shaft of the second motor 15, so that the inner wall of the foam tower body 1 can be cleaned.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a waste gas recovery purifier, includes foam tower body (1), foam tower body (1) inner peripheral surface fixedly connected with sieve (3), its characterized in that: the foam tower is characterized in that a sliding rod (4) is connected to the side wall of the foam tower body (1) in a sliding mode, an air suction pipe (41) is fixed to the inner circumferential surface of the sliding rod (4), a driving mechanism (5) used for driving the air suction pipe (41) to suck air is arranged on the foam tower body (1), and a sliding mechanism (6) used for driving the sliding rod (4) to horizontally slide in a reciprocating mode is arranged on the foam tower body (1).

2. An exhaust gas recovery and purification device according to claim 1, wherein: slide mechanism (6) are including being fixed in mounting bracket (61) of foam tower body (1) one side, first motor (62) of fixedly connected with on mounting bracket (61), the output shaft of first motor (62) is fixed with supporting disk (63), supporting disk (63) eccentric lug (64) of being fixed with, mounting bracket (61) lateral wall rotates and is connected with pendulum rod (65), spacing groove (651) have been seted up in pendulum rod (65), lug (64) slide through spacing groove (651) and pendulum rod (65) and are connected, slide bar (4) top is fixed with rack (42), pendulum rod (65) end fixing have with rack (42) meshed gear (652).

3. An exhaust gas recovery and purification device according to claim 1, wherein: the foam tower is characterized in that a spray head (84) is arranged on the inner top surface of the foam tower body (1), and a swing mechanism used for driving the spray head (84) to swing is arranged on the foam tower body (1).

4. An exhaust gas recovery and purification device according to claim 3, wherein: swing mechanism is including rotating pivot (8) of connecting in foam tower body (1) top, pivot (8) bottom fixedly connected with wedge (81), be fixed with bracing piece (82) on the wedge face of wedge (81), bracing piece (82) outer peripheral face rotates and is connected with axle sleeve (83), axle sleeve (83) inner peripheral face is fixed with shower nozzle (84), be equipped with outlet pipe (16) that supply shower nozzle (84) water on foam tower body (1), be equipped with on foam tower body (1) and be used for driving pivot (8) pivoted drive assembly.

5. An exhaust gas recovery and purification device according to claim 2, wherein: mounting bracket (61) top is fixed with locating piece (66), fixed slot (661) have been seted up in locating piece (66), slide bar (4) are through fixed slot (661) with locating piece (66) the connection that slides.

6. An exhaust gas recovery and purification device according to claim 1, wherein: the drive mechanism (5) comprises an air pump (51) connected to the air suction pipe (41), a control valve (52) is arranged on the air suction pipe (41), and a collecting box (7) used for containing washing acid is arranged at one end, far away from the foam tower body (1), of the air suction pipe (41).

7. An exhaust gas recovery and purification device according to claim 6, wherein: the top of the foam tower body (1) is fixed with a vent pipe (14).

8. An exhaust gas recovery and purification device according to claim 6, wherein: a filter screen (412) is mounted on the inner circumferential surface of the air suction pipe (41).