CN221107707U - Environment-friendly purification device for waste acid in pickling line - Google Patents

Abstract

The utility model discloses an environment-friendly purification device for waste acid gas in an acid pickling line, which belongs to the technical field of waste gas treatment and comprises a purification tower body; a baffle plate, a plurality of filler layers and a demisting layer are sequentially and fixedly arranged in the purifying tower body from bottom to top, a pretreatment cavity is formed at the lower side of the baffle plate, a neutralization cavity is formed between the baffle plate and the demisting layer, and an exhaust cavity is formed at the upper side of the demisting layer; a pretreatment mechanism is arranged in the exhaust cavity, a uniform liquid distribution mechanism is arranged in the neutralization cavity, and a vibration mechanism is arranged on the mist removing layer; the motor is fixedly connected with the purifying tower body, and a rotating shaft is fixedly arranged at the output end of the motor. Through the mode, waste acid gas enters the pretreatment cavity from the waste gas inlet, substances such as hydrogen chloride which is easy to dissolve in water in the waste acid gas are absorbed through the pretreatment mechanism, recycling of the waste acid gas is achieved, waste of resources is reduced, and subsequent waste acid gas purification step operation is facilitated; the acid gas flows from bottom to top, fully contacts with the neutralization solution and reacts in the filler layer, so that the neutralization efficiency of the acid gas is improved.

Description

Environment-friendly purification device for waste acid in pickling line

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to an environment-friendly waste acid purifying device for a pickling line.

Background

In the pickling process, the acid liquor can volatilize to generate a certain amount of polluted acid waste gas, and the main components of the acid waste gas comprise substances such as nitric acid, hydrogen chloride, sulfide, large-particle impurities and the like, and the waste can be discharged only after being purified, so that the safety of the environment is ensured.

As disclosed in the patent publication No. CN114653139a, the acid mist purifying tower for waste gas treatment comprises a purifying tower and a base arranged at the bottom end of the purifying tower, wherein a spraying component is arranged at the other side of the outer wall of the purifying tower, but hydrogen chloride and nitrate in the waste gas are very soluble in water, and if the neutralization treatment is directly carried out, the waste of resources is increased; the treated waste gas is required to be subjected to water mist removal through a silk screen and other structures before being discharged, and a large amount of water is adhered to the silk screen after long-term use, so that the water mist treatment effect is reduced.

Based on the above, the utility model designs an environment-friendly purification device for the waste acid of the pickling line to solve the problems.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model provides an environment-friendly purification device for the waste acid of the pickling line.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

an environment-friendly purification device for waste acid in an acid washing line comprises a purification tower body;

The purification tower body is internally and sequentially fixedly provided with a baffle plate, a plurality of filler layers and a demisting layer from bottom to top, wherein the lower side of the baffle plate forms a pretreatment cavity, a neutralization cavity is formed between the baffle plate and the demisting layer, and the upper side of the demisting layer forms an exhaust cavity; the bottom end of the purifying tower body is provided with an exhaust gas inlet communicated with the pretreatment cavity, and the top end of the purifying tower body is provided with an exhaust gas outlet communicated with the exhaust cavity;

A pretreatment mechanism is arranged in the exhaust cavity, a uniform liquid distribution mechanism is arranged in the neutralization cavity, and a vibration mechanism is arranged on the mist removing layer; the motor is fixedly connected with the purifying tower body, the output end of the motor is fixedly provided with a rotating shaft, and the pretreatment mechanism, the uniform liquid distribution mechanism and the vibration mechanism are all in transmission connection with the rotating shaft.

Further, the pretreatment mechanism comprises an annular pipe, air holes, a stirring fan, an absorption liquid pipeline and an air outlet bent pipe, wherein the annular pipe is fixedly arranged at the bottom of the pretreatment cavity and is communicated with the waste gas inlet, a plurality of air holes are uniformly formed in the annular pipe at equal intervals, and the stirring fan is fixedly connected with the rotating shaft; the side wall of the purifying tower body is fixedly provided with an absorption liquid pipeline communicated with the pretreatment cavity; a plurality of air outlet bent pipes are fixedly arranged on the partition plate, and the pretreatment cavity and the neutralization cavity are communicated through the air outlet bent pipes.

Furthermore, the air outlet bent pipes are distributed at equal intervals in a circumferential array, and are arranged to be of a downward bent structure, so that liquid in the neutralization cavity is prevented from entering the pretreatment cavity.

Furthermore, the air outlet bent pipes are distributed at equal intervals in a circumferential array, and are arranged to be of a downward bent structure, so that liquid in the neutralization cavity is prevented from entering the pretreatment cavity.

Further, the uniform liquid distribution mechanism comprises a liquid passing pipe, a distribution bin, a gear ring, a liquid passing bin and a spray header, wherein the liquid passing pipe is fixedly arranged on the side wall of the purification tower body; the packing layer is at least provided with two layers, the upper side of each packing layer is provided with a distribution bin, and the distribution bin is rotationally connected with the rotating shaft through a bearing and is communicated with the liquid through pipe; the gear is rotationally connected with the distribution bin through a bearing and is fixedly connected with the rotating shaft; the liquid passing bins are rotationally connected with the distribution bin through bearings, are communicated with the distribution bin, and are fixedly provided with a plurality of spray heads at the lower sides; the side wall of the liquid passing bin is fixedly provided with a gear ring which is connected with the gear in a meshed manner.

Still further, vibration mechanism includes dials board, mounting bracket, limiting plate, spring, movable block, drive chute and hits the head, and mounting bracket fixed mounting is in the upper end on defogging layer, and fixed mounting has the limiting plate on the mounting bracket, limiting plate and the spacing sliding connection of movable block, and fixed mounting has the spring between the top of mounting bracket and movable block, and the bottom fixed mounting of movable block has hits the head.

Furthermore, a shifting plate is fixedly arranged on the rotating shaft, and a driving chute matched with the shifting plate to slide is arranged on the movable block.

Furthermore, the upper end of the shifting plate is provided with a round corner which is favorable for jacking up the movable block through the driving chute.

Further, at least three groups of movable blocks and shifting plates are arranged.

Still further, the components in the purifying tower body are all made of acid-proof materials or are coated with acid-proof protective layers.

The utility model has the following technical effects:

1. In the utility model, waste acid gas enters the pretreatment cavity from the waste gas inlet, substances such as hydrogen chloride which are easy to dissolve in water in the waste acid gas are absorbed by the pretreatment mechanism, thereby realizing the recycling of the waste acid gas, reducing the waste of resources and facilitating the subsequent operation of the purification step of the waste acid gas; the pretreated waste acid gas enters a neutralization cavity, and a uniform liquid distribution mechanism uniformly sprays the neutralization liquid and falls on a packing layer, so that the acid gas flows from bottom to top, fully contacts with the neutralization liquid and reacts in the packing layer, and the neutralization efficiency of the waste acid gas is greatly improved; finally, the purified waste acid gas is discharged from the waste gas discharge port after the mist contained in the waste acid gas is removed through the mist removing layer, the mist removing layer is continuously vibrated by the vibration mechanism, and the liquid attached to the mist removing layer is shaken off, so that the mist removing efficiency of the mist removing layer is ensured; the motor provides power for the uniform liquid distribution mechanism, the vibration mechanism and the waste gas inlet through the rotating shaft, so that the use of a power input end is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of a portion of a side wall of a removal purification tower of the present utility model;

FIG. 3 is a perspective view of a portion of a side wall of a removal purification tower in accordance with the present utility model;

FIG. 4 is a second perspective view of a portion of the side wall of the removal and purification tower of the present utility model;

FIG. 5 is an enlarged view of FIG. 3 at A;

fig. 6 is an enlarged view at B in fig. 4.

Reference numerals in the drawings represent respectively:

1. Purifying the tower body; 2. a pretreatment mechanism; 21. an annular tube; 22. air holes; 23. a stirring fan; 24. an absorption liquid pipeline; 25. an air outlet elbow; 3. a uniform liquid distribution mechanism; 31. a liquid pipe; 32. a distribution bin; 33. a gear; 34. a gear ring; 35. a liquid passing bin; 36. a spray header; 4. a vibration mechanism; 41. a poking plate; 42. a mounting frame 4; 3. a limiting plate; 44. a spring; 45. a movable block; 46. driving the chute; 47. striking the head; 5. an exhaust gas inlet; 6. an exhaust gas discharge port; 7. a partition plate; 8. a filler layer; 9. a defogging layer; 101. a pretreatment chamber; 102. a neutralization chamber; 103. an exhaust chamber; 11. a motor; 12. and (3) rotating the shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described below with reference to examples.

References to "left", "right", "front", "rear", "up", "down" in the following description are oriented in the viewing direction of fig. 2.

In some embodiments, please refer to fig. 1 and 2 of the specification, an environment-friendly purification device for waste acid in an acid pickling line comprises a purification tower body 1;

A baffle 7, a plurality of filler layers 8 and a demisting layer 9 are sequentially and fixedly arranged in the purifying tower body 1 from bottom to top, a pretreatment cavity 101 is formed at the lower side of the baffle 7, a neutralization cavity 102 is formed between the baffle 7 and the demisting layer 9, and an exhaust cavity 103 is formed at the upper side of the demisting layer 9; the bottom end of the purification tower body 1 is provided with an exhaust gas inlet 5 communicated with the pretreatment cavity 101, and the top end of the purification tower body 1 is provided with an exhaust gas outlet 6 communicated with the exhaust cavity 103;

A pretreatment mechanism 2 is arranged in the exhaust cavity 103, a uniform liquid distribution mechanism 3 is arranged in the neutralization cavity 102, and a vibration mechanism 4 is arranged on the mist removing layer 9; the motor 11 is fixedly connected with the purifying tower body 1, a rotating shaft 12 is fixedly arranged at the output end of the motor 11, and the pretreatment mechanism 2, the uniform liquid distribution mechanism 3 and the vibration mechanism 4 are all in transmission connection with the rotating shaft 12.

In the utility model, when the pickling line waste acid gas environment-friendly purification device works normally, waste acid gas enters the pretreatment cavity 101 from the waste gas inlet 5, substances such as hydrogen chloride which are easy to dissolve in water in the waste acid gas are absorbed by the pretreatment mechanism 2, so that the waste acid gas is recycled, the waste of resources is reduced, and the subsequent purification step operation of the waste acid gas is facilitated; the pretreated waste acid gas enters the neutralization cavity 102, the neutralization liquid is uniformly sprayed by the uniform liquid distribution mechanism 3 and falls on the packing layer 8, and the acid gas flows from bottom to top, fully contacts with the neutralization liquid and reacts in the packing layer 8, so that the neutralization efficiency of the waste acid gas is greatly improved; finally, the purified waste acid gas is discharged from the waste gas discharge port 6 after the water mist contained in the waste acid gas is removed through the mist removing layer 9, the mist removing layer 9 is continuously vibrated by the vibration mechanism 4, and the liquid attached to the mist removing layer 9 is shaken off, so that the mist removing efficiency of the mist removing layer 9 is ensured; the motor 11 provides power for the uniform liquid distribution mechanism 3, the vibration mechanism 4 and the waste gas inlet 5 through the rotating shaft 12, so that the use of a power input end is reduced.

In some embodiments, as shown in fig. 3, as a preferred embodiment of the present utility model,

The pretreatment mechanism 2 comprises an annular pipe 21, air holes 22, a stirring fan 23, an absorption liquid pipeline 24 and an air outlet bent pipe 25, wherein the annular pipe 21 is fixedly arranged at the bottom of the pretreatment cavity 101 and is communicated with the waste gas inlet 5, a plurality of air holes 22 are uniformly formed in the annular pipe 21 at equal intervals, and the stirring fan 23 is fixedly connected with the rotating shaft 12; the side wall of the purification tower body 1 is fixedly provided with an absorption liquid pipeline 24 communicated with the pretreatment cavity 101; a plurality of air outlet bent pipes 25 are fixedly arranged on the partition plate 7, and the pretreatment cavity 101 and the neutralization cavity 102 are communicated through the air outlet bent pipes 25;

the air outlet bent pipes 25 are distributed at equal intervals in a circumferential array, and the air outlet bent pipes 25 are arranged in a downward bent structure, so that liquid in the neutralization cavity 102 is prevented from entering the pretreatment cavity 101.

When the pretreatment mechanism 2 works normally, waste acid gas enters the annular pipe 21 from the waste gas inlet 5 and enters pretreatment liquid in the pretreatment cavity 101 from the air hole 22, and the waste acid gas is dispersed into tiny bubbles under the action of the air hole 22, so that the absorption efficiency of the pretreatment liquid on recoverable substances in the acid gas is improved, and meanwhile, the motor 11 drives the stirring fan 23 to continuously stir the pretreatment liquid through the rotating shaft 12, so that the acid gas bubbles are further dispersed, and the absorption effect is improved; the treated waste acid gas enters the neutralization cavity 102 from the air outlet elbow 25 for the next step; the pretreatment liquid absorbs enough acidic substances and is discharged from the absorption liquid pipeline 24, and the pretreatment liquid can be recycled after being subjected to steps such as filtration, concentration and the like.

In some embodiments, as shown in fig. 4 and 6, as a preferred embodiment of the present utility model,

The uniform liquid distribution mechanism 3 comprises a liquid passing pipe 31, a distribution bin 32, a gear 33, a gear ring 34, a liquid passing bin 35 and a spray header 36, wherein the liquid passing pipe 31 is fixedly arranged on the side wall of the purification tower body 1; the packing layers 8 are at least provided with two layers, the upper side of each packing layer 8 is provided with a distribution bin 32, and the distribution bins 32 are rotationally connected with the rotating shaft 12 through bearings and are communicated with the liquid through pipe 31; the gear 33 is rotatably connected with the distribution bin 32 through a bearing and fixedly connected with the rotating shaft 12; the liquid passing bins 35 are rotationally connected with the distribution bin 32 through bearings, the liquid passing bins 35 are communicated with the distribution bin 32, and a plurality of spray heads 36 are fixedly arranged on the lower sides of the liquid passing bins 35; a gear ring 34 is fixedly arranged on the side wall of the liquid passing bin 35, and the gear ring 34 is in meshed connection with the gear 33.

The liquid passing bin 35 and the spray header 36 are all distributed in a circumferential array at equal intervals.

When the uniform liquid distribution mechanism 3 works normally, neutralizing liquid enters the distribution bin 32 through the liquid passing pipes 31 and is distributed into the liquid passing bins 35, and finally is sprayed out from the spray header 36 to the neutralizing cavity 102, the rotating shaft 12 drives the gear 33 to rotate, so that the liquid passing bins 35 are driven to rotate through the gear ring 34, and the spray header 36 on the liquid passing bins 35 sprays the neutralizing liquid while rotating, so that the uniformity of liquid distribution is further improved, the waste acid gas is in full contact with the neutralizing liquid, and the waste acid gas purifying effect is improved.

In some embodiments, as shown in fig. 3 and 5, as a preferred embodiment of the present utility model,

The vibration mechanism 4 comprises a poking plate 41, a mounting frame 42, a limiting plate 43, a spring 44, a movable block 45, a driving chute 46 and a striking head 47, wherein the mounting frame 42 is fixedly arranged at the upper end of the mist removing layer 9, the limiting plate 43 is fixedly arranged on the mounting frame 42, the limiting plate 43 is in limiting sliding connection with the movable block 45, the spring 44 is fixedly arranged between the mounting frame 42 and the top of the movable block 45, and the striking head 47 is fixedly arranged at the bottom of the movable block 45; the rotating shaft 12 is fixedly provided with a shifting plate 41, and the movable block 45 is provided with a driving chute 46 matched with the shifting plate 41 to slide;

The movable block 45 and the dial 41 are provided with at least three groups.

When the vibration mechanism 4 works normally, the rotating shaft 12 drives the shifting plate 41 to rotate, the shifting plate 41 contacts with the driving chute 46 in the rotating process, the movable block 45 is jacked up, the movable block 45 moves vertically upwards under the limiting effect of the limiting plate 43, the spring 44 is compressed, after the shifting plate 41 is separated from the movable block 45, the spring 44 drives the movable block 45 to do reset motion, the striking head 47 strikes the mist removing layer 9 to vibrate the mist removing layer 9, and liquid attached to the mist removing layer 9 is shaken off, so that the mist removing efficiency of the mist removing layer 9 is ensured.

The upper end of the shifting plate 41 is provided with a round corner which is favorable for jacking up the movable block 45 through the driving chute 46.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The utility model provides an environmental protection purifier of pickling line spent acid gas, includes purification tower body (1), its characterized in that:

A baffle plate (7), a plurality of filler layers (8) and a demisting layer (9) are sequentially and fixedly arranged in the purifying tower body (1) from bottom to top, a pretreatment cavity (101) is formed at the lower side of the baffle plate (7), a neutralization cavity (102) is formed between the baffle plate (7) and the demisting layer (9), and an exhaust cavity (103) is formed at the upper side of the demisting layer (9); an exhaust gas inlet (5) communicated with the pretreatment cavity (101) is formed in the bottom end of the purification tower body (1), and an exhaust gas outlet (6) communicated with the exhaust cavity (103) is formed in the top end of the purification tower body (1);

A pretreatment mechanism (2) is arranged in the exhaust cavity (103), a uniform liquid distribution mechanism (3) is arranged in the neutralization cavity (102), and a vibration mechanism (4) is arranged on the demisting layer (9); the motor (11) is fixedly connected with the purifying tower body (1), a rotating shaft (12) is fixedly arranged at the output end of the motor (11), and the pretreatment mechanism (2), the uniform liquid distribution mechanism (3) and the vibration mechanism (4) are all in transmission connection with the rotating shaft (12).

2. The acid pickling line waste acid environment-friendly purification device according to claim 1, wherein the pretreatment mechanism (2) comprises an annular pipe (21), air holes (22), a stirring fan (23), an absorption liquid pipeline (24) and an air outlet elbow pipe (25), the annular pipe (21) is fixedly arranged at the bottom of the pretreatment cavity (101) and is communicated with the waste gas inlet (5), a plurality of air holes (22) are uniformly formed in the annular pipe (21) at equal intervals, and the stirring fan (23) is fixedly connected with the rotating shaft (12); an absorption liquid pipeline (24) communicated with the pretreatment cavity (101) is fixedly arranged on the side wall of the purification tower body (1); a plurality of air outlet bent pipes (25) are fixedly arranged on the partition plate (7), and the pretreatment cavity (101) and the neutralization cavity (102) are communicated through the air outlet bent pipes (25).

3. The pickling line waste acid environment-friendly purifying device according to claim 2, wherein the air outlet bent pipes (25) are distributed at equal intervals in a circumferential array, and the air outlet bent pipes (25) are of a downward bent structure, so that liquid in the neutralization cavity (102) is prevented from entering the pretreatment cavity (101).

4. The pickling line waste acid environment-friendly purifying device according to claim 3, wherein the uniform liquid distribution mechanism (3) comprises a liquid passing pipe (31), a distribution bin (32), a gear (33), a gear ring (34), a liquid passing bin (35) and a spray header (36), and the liquid passing pipe (31) is fixedly arranged on the side wall of the purifying tower body (1); the packing layers (8) are at least provided with two layers, the upper side of each packing layer (8) is provided with a distribution bin (32), and the distribution bins (32) are rotationally connected with the rotating shaft (12) through bearings and are communicated with the liquid through pipe (31); the gear (33) is rotationally connected with the distribution bin (32) through a bearing and is fixedly connected with the rotating shaft (12); the liquid passing bins (35) are rotationally connected with the distribution bin (32) through bearings, the liquid passing bins (35) are communicated with the distribution bin (32), and a plurality of spray heads (36) are fixedly arranged on the lower sides of the liquid passing bins (35); the side wall of the liquid passing bin (35) is fixedly provided with a gear ring (34), and the gear ring (34) is meshed with the gear (33).

5. The pickling line waste acid environment-friendly purifying device according to claim 4, wherein the liquid passing bins (35) and the spray heads (36) are all distributed in a circumferential array at equal intervals.

6. The pickling line waste acid environmental protection purifier according to claim 5, wherein the vibration mechanism (4) comprises a poking plate (41), a mounting frame (42), a limiting plate (43), a spring (44), a movable block (45), a driving chute (46) and a beating head (47), wherein the mounting frame (42) is fixedly arranged at the upper end of the mist removing layer (9), the limiting plate (43) is fixedly arranged on the mounting frame (42), the limiting plate (43) is in limiting sliding connection with the movable block (45), the spring (44) is fixedly arranged between the mounting frame (42) and the top of the movable block (45), and the beating head (47) is fixedly arranged at the bottom of the movable block (45).

7. The pickling line waste acid environmental protection purification device according to claim 6, wherein a shifting plate (41) is fixedly installed on the rotating shaft (12), and a driving chute (46) matched with the shifting plate (41) to slide is formed on the movable block (45).

8. The pickling line waste acid environmental protection purification device according to claim 7, wherein a round corner which is beneficial to jacking up the movable block (45) through the driving chute (46) is arranged at the upper end of the poking plate (41).

9. The pickling line waste acid environment-friendly purifying device according to claim 8, wherein at least three groups of movable blocks (45) and poking plates (41) are arranged.

10. The pickling line waste acid environmental protection purification device according to claim 9, wherein components in the purification tower body (1) are all made of acid-resistant materials or coated with acid-resistant protection layers.