CN210251843U

CN210251843U - Tail gas tower for waste acid regeneration treatment

Info

Publication number: CN210251843U
Application number: CN201921040459.9U
Authority: CN
Inventors: 崔延峰; 贾永杰; 席福正; 林贺
Original assignee: Dalian Menglian Petrochemical Co Ltd
Current assignee: Dalian Menglian Petrochemical Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-07
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a spent acid is exhaust tower for regeneration treatment, including exhaust tower main part, water tank and waste alkali lye apotheca, the bottom of exhaust tower main part one side and the one end fixed connection of intake pipe, the middle part of intake pipe sets up in the inside of water tank, and the bottom mounting of water tank is equipped with the condenser, and the other end of intake pipe passes through one side fixed connection of second air pump and gas collecting channel, and the bottom mounting of exhaust tower main part is equipped with waste alkali lye apotheca. The utility model relates to a tail gas tower for spent acid regeneration treatment sprays waste lye with vaporific form through the spraying nozzle and neutralizes in with tail gas to the tail gas tower for tail gas can be by abundant neutralization, and while board net defroster and adsorption plate can carry out secondary and cubic to tail gas and handle, can reduce the harmful substance in the tail gas to below the safe value, prevent that tail gas from causing the pollution to the atmosphere, and the used alkali lye of tail gas tower is waste lye, but resources are saved.

Description

Tail gas tower for waste acid regeneration treatment

Technical Field

The utility model relates to a tail gas tower, in particular to tail gas tower for spent acid regeneration treatment.

Background

Waste acid, also called waste sulfuric acid, is generated in industrial production, or generated in the processes of nitration, esterification, sulfonation, alkylation, catalysis, gas drying and the like of organic matters, or generated in the processes of titanium dioxide production, steel pickling, gas drying and the like. The direct discharge of the waste liquor not only seriously pollutes the environment, but also causes great waste, and in order to avoid the acid pollution of the pickling liquor, the traditional method generally adopts lime, carbide slag or a product Ca (OH) of lime digestion reaction₂While neutralization is carried out, the pH value after neutralization can meet the requirements, other indexes are difficult to reach the standards, the produced sludge is difficult to dehydrate, difficult to dry and difficult to post-treat, most of the conditions are accumulation to be treated, a large amount of land is occupied, secondary pollution is caused, meanwhile, a large amount of acid and iron resources are wasted by the method, in order to protect the environment, save and reasonably utilize the resources, scholars at home and abroad carry out a large amount of research and exploration for a long time, different types of treatment and recovery methods and technologies are provided, and a good application effect is achieved.

Most of the existing tail gas treatment methods for the waste liquid regeneration treatment are to discharge tail gas into alkali liquor for acid-alkali neutralization, but the alkali liquor consumption of the treatment method is serious, resources are wasted, and the tail gas cannot be completely neutralized and discharged into the air, so that the atmosphere is polluted; the tail gas tower for the existing waste liquid regeneration treatment can not detect the pH value of the tail gas, so that the tail gas tower can not judge whether the tail gas is treated completely, and the practicability of the tail gas tower is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tail gas tower for spent acid regeneration treatment to solve the unable clean problem of tail gas treatment completely of current spent acid regeneration treatment tail gas tower that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spent acid is tail gas tower for regeneration treatment, includes tail gas tower main part, water tank and waste lye apotheca, the bottom of tail gas tower main part one side and the one end fixed connection of intake pipe, the middle part of intake pipe sets up in the inside of water tank, the bottom mounting of water tank is equipped with the condenser, the other end of intake pipe passes through one side fixed connection of second air pump and gas collecting channel, the fixed waste lye apotheca that is equipped with in bottom of tail gas tower main part, the input fixed connection of waste lye transmission pipe and force pump is passed through at the middle part of waste lye apotheca one side, the input fixed connection of waste lye transmission pipe and a plurality of atomizer is passed through to the output of force pump, the fixed plate network defroster that is equipped with in middle part of tail.

As an optimized technical proposal of the utility model, a baffle is fixedly arranged at the top of the waste lye storage chamber.

As an optimal technical scheme of the utility model, the fixed adsorption plate that is equipped with in top of expanded metal demister, the inside packing of adsorption plate has a plurality of soda lime particles.

As an optimal technical scheme of the utility model, the fixed filter that is equipped with in top of adsorption plate, the inside packing of filter has a plurality of activated carbon particles, the fixed deodorizer that is equipped with in top of filter.

As a preferred technical scheme of the utility model, the bottom of tail gas tower main part gas outlet department one side alternates with the sense terminal of pH value detector and is connected, the fixed first solenoid valve that is equipped with in middle part of tail gas tower main part gas outlet department one side, the one end fixed connection of second solenoid valve and backflow pipeline is passed through to the bottom of tail gas tower main part gas outlet department opposite side, the bottom fixed connection of first air pump and tail gas tower main part opposite side is passed through to backflow pipeline's one end.

As an optimal technical scheme of the utility model, the fixed control panel that is equipped with in one side of tail gas tower main part, fixed force pump switch, first air pump switch, condenser switch, second air pump switch, deodorizer switch, first solenoid valve switch and the second solenoid valve switch of being equipped with in one side of control panel, force pump, first air pump, condenser, second air pump, deodorizer, first solenoid valve and second solenoid valve are respectively through force pump switch, first air pump switch, condenser switch, second air pump switch, deodorizer switch, first solenoid valve switch and second solenoid valve switch and external power supply electric connection.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a spent acid is tail gas tower for regeneration treatment sprays waste lye to the tail gas tower in vaporific form through the spray nozzle and neutralizes with tail gas, makes tail gas can be fully neutralized, and while board net defroster and adsorption plate can carry out secondary and tertiary treatment to tail gas, can reduce the harmful substance in the tail gas to below the safe value, prevents that tail gas from causing the pollution to the atmosphere, and the used alkali lye of tail gas tower is waste lye, can resources are saved; detect the pH value of tail gas through the pH value detector, if not then get back to the processing region through the return line and carry out retreatment to improve the practicality of tail gas tower.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic view of the cross-sectional structure of the present invention.

In the figure: 1. a tail gas tower main body; 2. a water tank; 3. a baffle plate; 4. a return line; 5. a waste lye storage chamber; 6. a waste alkali liquor conveying pipe; 7. a pressure pump; 8. an atomizing spray head; 9. a first air pump; 10. a condenser; 11. a gas-collecting hood; 12. an air inlet pipe; 13. a second air pump; 14. a plate mesh demister; 15. an adsorption plate; 16. a filter plate; 17. a deodorizer; 18. a pH value detector; 19. a first solenoid valve; 20. a second solenoid valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, the utility model provides a waste acid is tail gas tower for regeneration treatment, including tail gas tower main part 1, water tank 2 and waste lye apotheca 5, the bottom of tail gas tower main part 1 one side and the one end fixed connection of intake pipe 12, the middle part of intake pipe 12 sets up in the inside of water tank 2, the bottom mounting of water tank 2 is equipped with condenser 10, one side fixed connection of second air pump 13 and gas collecting channel 11 is passed through to the other end of intake pipe 12, the fixed waste lye apotheca 5 that is equipped with in bottom of tail gas tower main part 1, the middle part of waste lye apotheca 5 one side is passed through waste lye transmission pipe 6 and the input fixed connection of force pump 7, the output of force pump 7 passes through waste lye transmission pipe 6 and a plurality of atomizer 8's input fixed connection, the fixed board net defroster 14 that is equipped with in middle part.

Preferably, a baffle 3 is fixedly arranged on the top of the waste lye storage chamber 5 to prevent the neutralized liquid from flowing into the waste lye storage chamber 5.

Preferably, the top of the plate-mesh demister 14 is fixedly provided with an adsorption plate 15, and a plurality of soda lime particles are filled in the adsorption plate 15 to perform secondary adsorption treatment on the tail gas.

Preferably, the fixed filter 16 that is equipped with in top of adsorption plate 15, the inside packing of filter 16 has a plurality of active carbon granules, and the fixed deodorizer 17 that is equipped with in top of filter 16 carries out the cubic adsorption to tail gas and handles.

Preferably, the bottom of one side of the air outlet of the tail gas tower main body 1 is in alternate connection with the detection end of the pH value detector 18, the middle of one side of the air outlet of the tail gas tower main body 1 is fixedly provided with a first electromagnetic valve 19, the bottom of the other side of the air outlet of the tail gas tower main body 1 is fixedly connected with one end of the backflow pipeline 4 through a second electromagnetic valve 20, one end of the backflow pipeline 4 is fixedly connected with the bottom of the other side of the tail gas tower main body 1 through a first air pump 9, and tail gas which does not reach the emission standard is treated again.

Preferably, a control panel is fixedly arranged on one side of the tail gas tower main body 1, a pressure pump switch is fixedly arranged on one side of the control panel, a first air pump switch, a condenser switch, a second air pump switch, a deodorizer switch, a first electromagnetic valve switch and a second electromagnetic valve switch, the pressure pump 7, a first air pump 9, a condenser 10, a second air pump 13, a deodorizer 17, a first electromagnetic valve 19 and a second electromagnetic valve 20 are respectively connected with an external power supply through the pressure pump switch, the first air pump switch, the condenser switch, the second air pump switch, the deodorizer switch, the first electromagnetic valve switch and the second electromagnetic valve switch.

When in specific use, the utility model relates to a waste acid is tail gas tower for regeneration treatment, tail gas enters into intake pipe 12 through second air pump 13 that the model is RB-92S-3, the condenser 10 that the model is ZLC095 condenses the water in the water tank 2, thereby condense the tail gas in intake pipe 12, open the force pump switch simultaneously, the waste lye in waste lye apotheca 5 is transmitted to atomizer 8 department to pressure pump 7 that the model is YCB, atomizer 8 neutralizes the waste lye with the tail gas that the tail gas discharged into the tower in vaporific form, the neutralization liquid is discharged through the liquid outlet of tail gas tower, the tail gas through first neutralization transmits to board net defroster 14 department and carries out secondary adsorption treatment, the tail gas through secondary adsorption treatment transmits adsorption board 15, filter 16 and deodorizer 17 department that the model is xht-uv carry out tertiary adsorption treatment, transmit to the gas outlet department of tail gas tower at last, the pH value detector 18 with the model number of TECH-698 detects the tail gas, if the tail gas reaches the emission standard, opening a first electromagnetic valve 19 to discharge the tail gas into the atmosphere, if the tail gas does not reach the discharge standard, opening a second electromagnetic valve 20, transmitting the tail gas to a tail gas neutralization area by a first air pump 9 with the model of RB-92S-3 for secondary neutralization treatment, supplementing the waste alkali liquor in the waste alkali liquor storage chamber 5 through an inlet of the waste alkali liquor storage chamber 5, carrying out triple treatment on the tail gas by a tail gas tower to ensure that the tail gas can be fully neutralized, can reduce harmful substances in the tail gas to below a safe value and prevent the tail gas from polluting the atmosphere, and the alkali liquor used by the tail gas tower is waste alkali liquor, the resource can be saved, the pH value detector 18 with the model of TECH-698 is adopted to detect the content of harmful substances in the tail gas, and the practicability of the tail gas tower can be improved.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The tail gas tower for waste acid regeneration treatment comprises a tail gas tower main body (1), a water tank (2) and a waste alkali liquor storage chamber (5), and is characterized in that the bottom of one side of the tail gas tower main body (1) is fixedly connected with one end of an air inlet pipe (12), the middle of the air inlet pipe (12) is arranged in the water tank (2), a condenser (10) is fixedly arranged at the bottom end of the water tank (2), the other end of the air inlet pipe (12) is fixedly connected with one side of an air collecting hood (11) through a second air pump (13), the bottom of the tail gas tower main body (1) is fixedly provided with the waste alkali liquor storage chamber (5), the middle of one side of the waste alkali liquor storage chamber (5) is fixedly connected with the input end of a pressure pump (7) through a waste alkali liquor transmission pipe (6), the output end of the pressure pump (7) is fixedly connected with the input ends of a plurality of atomization spray nozzles (8) through, and a plate mesh demister (14) is fixedly arranged in the middle of the inner wall of the tail gas tower main body (1).

2. The tail gas tower for waste acid regeneration treatment according to claim 1, wherein: and a baffle (3) is fixedly arranged at the top of the waste alkali liquor storage chamber (5).

3. The tail gas tower for waste acid regeneration treatment according to claim 1, wherein: an adsorption plate (15) is fixedly arranged at the top of the plate mesh demister (14), and a plurality of soda lime particles are filled in the adsorption plate (15).

4. The tail gas tower for waste acid regeneration treatment according to claim 3, wherein: the top of adsorption plate (15) is fixed and is equipped with filter (16), the inside packing of filter (16) has a plurality of activated carbon particles, the fixed deodorizer (17) that is equipped with in top of filter (16).

5. The tail gas tower for waste acid regeneration treatment according to claim 4, wherein: the bottom of tail gas tower main part (1) gas outlet department one side alternates with the sense terminal of pH value detector (18) and is connected, the fixed first solenoid valve (19) that is equipped with in middle part of tail gas tower main part (1) gas outlet department one side, the bottom of tail gas tower main part (1) gas outlet department opposite side passes through the one end fixed connection of second solenoid valve (20) and backflow pipeline (4), the bottom fixed connection of one end of backflow pipeline (4) through first air pump (9) and tail gas tower main part (1) opposite side.

6. A spent acid regeneration treatment tail gas tower according to claim 5, characterized in that: the fixed control panel that is equipped with in one side of tail gas tower main part (1), fixed force pump switch, first air pump switch, condenser switch, second air pump switch, deodorizer switch, first solenoid valve switch and the second solenoid valve switch of being equipped with in one side of control panel, force pump (7), first air pump (9), condenser (10), second air pump (13), deodorizer (17), first solenoid valve (19) and second solenoid valve (20) are respectively through force pump switch, first air pump switch, condenser switch, second air pump switch, deodorizer switch, first solenoid valve switch and second solenoid valve switch and external power supply electric connection.