CN210905641U

CN210905641U - Waste gas sprays purification treatment system

Info

Publication number: CN210905641U
Application number: CN201921856339.6U
Authority: CN
Inventors: 霍云飞
Original assignee: Yichang Keyun Environmental Protection Technology Co ltd
Current assignee: Yichang Keyun Environmental Protection Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-03
Anticipated expiration: 2029-10-31

Abstract

A waste gas spraying purification treatment system comprises a spray tower, wherein a partition plate is arranged in the spray tower, the lower end of the partition plate is arranged on a liquid gathering base of the spray tower, and a gap is reserved between the upper end of the partition plate and the inner top surface of the spray tower; the spray tower is also provided with a first spray pipe and a second spray pipe, the first spray pipe and the second spray pipe are respectively arranged in the spray tower areas at two sides of the partition plate, the first spray pipe is connected with a liquid inlet main pipe, the second spray pipe is connected with the liquid inlet main pipe through a liquid inlet branch pipe, and the liquid inlet main pipe extends into the liquid storage tank; and the positions of the two sides of the spray tower, which are close to the lower end, are respectively provided with an air inlet pipe and an air outlet pipe, the air outlet pipe is connected with a demister, and the demister is connected with a fan. By adopting the structure, the defects of high pipeline cost and large pipeline kinetic energy consumption under the adoption of a multistage spray tower series connection mode are effectively overcome, the cleaning work of the demister is facilitated, the cyclic recycling of spray liquid is realized, the waste gas treatment effect is ensured, and the waste gas treatment cost is reduced.

Description

Waste gas sprays purification treatment system

Technical Field

The utility model relates to an exhaust-gas treatment field, especially a waste gas sprays purification treatment system.

Background

At present, mainstream equipment and a process for treating waste gas and tail gas mainly adopt a two-stage single-tower series connection and top-mounted demister process, gas flow between towers mainly adopts a relatively long pipeline for connection, and the mainstream equipment and the process have the defects of increasing the investment cost of the pipeline and the kinetic energy consumption of the pipeline. In addition, because the demister in the existing waste gas treatment system is arranged at the top of the spray tower, the demister is higher in position and has the defect of inconvenient cleaning. Meanwhile, the spraying liquid adopted by different waste gases has different components, so that the consumption of the spraying liquid is higher when the chemical spraying liquid is adopted, and the cost of the whole waste gas treatment is higher.

Disclosure of Invention

The utility model aims to solve the technical problem that a waste gas sprays purification processing system is provided, its pipeline that has effectively solved under adopting multistage spray column series connection mode is with high costs, the big shortcoming of pipeline kinetic energy consumption, has made things convenient for the cleaning work of demister simultaneously, has still realized the circulation recycle who sprays the liquid in addition, has ensured the exhaust-gas treatment effect, has reduced exhaust-gas treatment's cost.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a waste gas spraying purification treatment system comprises a spray tower, wherein a partition plate is arranged in the spray tower, the lower end of the partition plate is arranged on a liquid gathering base of the spray tower, and a gap is reserved between the upper end of the partition plate and the inner top surface of the spray tower;

the spray tower is also internally provided with a first spray pipe and a second spray pipe, the first spray pipe and the second spray pipe are respectively arranged in the spray tower areas at two sides of the partition plate, the first spray pipe is connected with a liquid inlet main pipe, the second spray pipe is connected with a liquid inlet main pipe through a liquid inlet branch pipe which is wound outside the spray tower, and the liquid inlet main pipe extends into a liquid storage tank at one side of the spray tower;

and the positions of the two sides of the spray tower, which are close to the lower end, are respectively provided with an air inlet pipe and an air outlet pipe, the air outlet pipe is connected with a demister, and the demister is connected with a fan.

In a preferable scheme, the first spray pipe and the second spray pipe respectively comprise at least two rows of pipelines, and downward spray heads are arranged on the parts of the first spray pipe and the second spray pipe, which are positioned in the spray tower.

In a preferable scheme, a liquid feeding pump is arranged on the liquid inlet main pipe.

In a preferable scheme, a liquid replenishing pipe is arranged on the liquid storage tank.

In the preferred scheme, gather liquid base top surface adopt by both sides to the decurrent structure of middle part slope, the baffle is fixed at the middle part of gathering the liquid base, gather and be equipped with the liquid gathering groove that is on a parallel with the baffle on the liquid base top surface of gathering of liquid base both sides, the tank bottom of liquid gathering groove adopts by both ends to the decurrent structure of middle part slope, the middle part of liquid gathering groove is equipped with down the liquid hole, liquid return pipe one end is connected with the liquid reserve tank, the other end inserts to set up in gathering the liquid base and communicates with down the liquid hole.

In the preferred scheme, a water replenishing pipe is further arranged on the liquid inlet branch pipe.

The utility model provides a waste gas sprays purification treatment system through adopting above-mentioned structure, has following beneficial effect:

(1) the single spray tower forms a serial structure of two spray towers by arranging the partition plate, so that the construction amount of pipelines and the spray towers can be reduced, and the cost is saved;

(2) the demister can be cleaned more conveniently;

(3) the spraying liquid can be recycled, so that the waste of the spraying liquid is reduced;

(4) the concentration of the spray liquid in different areas can be adjusted to achieve the optimal spray purification effect.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the layout of the spraying pipeline of the utility model.

Fig. 3 is the schematic view of the liquid collecting base structure of the present invention.

In the figure: spray tower 1, gather liquid base 101, baffle 2, first shower 3, second shower 4, the feed liquor is responsible for 5, liquid reserve tank 6, liquid feeding pump 7, fluid infusion pipe 8, liquid return pipe 9, intake pipe 10, outlet duct 11, demister 12, fan 13, tuber pipe 14, feed liquor branch pipe 15, shower nozzle 16, moisturizing pipe 17, gather cistern 18, lower liquid hole 19.

Detailed Description

As shown in fig. 1-3, a waste gas spraying purification treatment system comprises a spray tower 1, wherein a partition plate 2 is arranged in the spray tower 1, the lower end of the partition plate 2 is arranged on a liquid collecting base 101 of the spray tower 1, and a gap is reserved between the upper end of the partition plate 2 and the inner top surface of the spray tower 1;

the spray tower 1 is also provided with a first spray pipe 3 and a second spray pipe 4, the first spray pipe 3 and the second spray pipe 4 are respectively arranged in the areas of the spray tower 1 at the two sides of the partition board 2, the first spray pipe 3 is connected with a liquid inlet main pipe 5, the second spray pipe 4 is connected with the liquid inlet main pipe 5 through a liquid inlet branch pipe 15 wound outside the spray tower 1, and the liquid inlet main pipe 5 extends into a liquid storage tank 6 at one side of the spray tower 1;

the positions of two sides of the spray tower 1 close to the lower end are respectively provided with an air inlet pipe 10 and an air outlet pipe 11, the air outlet pipe 11 is connected with a demister 12, and the demister 12 is connected with a fan 13.

In a preferable scheme, the first spray pipe 3 and the second spray pipe 4 respectively comprise at least two rows of pipelines, and downward spray heads 16 are arranged on the parts of the first spray pipe 3 and the second spray pipe 4 in the spray tower 1.

In a preferable scheme, a liquid sending pump 7 is arranged on the liquid inlet main pipe 5.

In a preferable scheme, a liquid supplementing pipe 8 is arranged on the liquid storage tank 6.

In the preferred scheme, the top surface of the liquid collecting base 101 adopts a structure that the two sides incline downwards to the middle part, the partition plate 2 is fixed in the middle part of the liquid collecting base 101, the liquid collecting groove 18 parallel to the partition plate 2 is arranged on the top surfaces of the liquid collecting bases 101 on the two sides of the liquid collecting base 101, the groove bottom of the liquid collecting groove 18 adopts a structure that the two ends incline downwards to the middle part, the middle part of the liquid collecting groove 18 is provided with a liquid discharging hole 19, one end of the liquid returning pipe 9 is connected with the liquid storage tank 6, and the other end is inserted into the liquid collecting base 101 and is communicated with the liquid discharging hole.

In a preferable scheme, a water replenishing pipe 17 is further arranged on the liquid inlet branch pipe 15.

In the preferred scheme, a plurality of liquid storage tanks 6 can be arranged, and different spraying liquids (clear water, acid-base spraying liquid and organic solvent) are arranged in the liquid storage tanks 6, so that the aim of selecting different spraying liquids according to different waste gas spraying and purifying operations is fulfilled.

This system adopts different spray solutions to different waste gases:

when dust in the waste gas is adsorbed, spraying and adsorbing are carried out only by using tap water, and the tap water circulates to reach the maximum adsorption quantity;

when the acidic (alkaline) pollutants dissolved in water in the waste gas are purified, the spraying liquid adopts alkaline (acidic) liquid for spraying, and the sprayed spraying liquid is circulated to fully react;

when the pollutants insoluble in water in the waste gas are purified, the spraying liquid adopts an organic solvent and circulates to achieve the purpose of fully adsorbing the pollutants.

The principle of the system is as follows:

the intake pipe 10 continues to input waste gas into the spray tower 1, the liquid feeding pump 7 is opened, the spray liquid enters the first spray pipe 3 and the second spray pipe 4, contacts with the waste gas flowing in an inverted U shape and adsorbs pollutants in the waste gas, the water replenishing pipe 17 on the second spray pipe 4 is opened at the same time, the purpose of reducing the concentration of the spray liquid in the second spray pipe 4 is achieved, thereby the spray amount is increased, the adsorption effect of single spray is improved, the purified gas enters the demister 12 through the air outlet pipe 11, the purified gas is output through the air outlet pipe 14 on the fan 13 after defoaming, the spray liquid passes through the liquid return pipe 9, the purpose of recycling is achieved, after the spray liquid is adsorbed or fully reacted, the spray liquid in the liquid storage tank 6 can be selectively replaced, the output pipe can be arranged on the liquid storage tank 6, and after the spray liquid after being fully utilized is output, new spray liquid is input through the liquid replenishing pipe 8.

Claims

1. The utility model provides a waste gas sprays purification treatment system, includes spray column (1), characterized by: a partition plate (2) is arranged in the spray tower (1), the lower end of the partition plate (2) is arranged on a liquid collecting base (101) of the spray tower (1), and a gap is reserved between the upper end of the partition plate (2) and the inner top surface of the spray tower (1);

the spraying tower (1) is also internally provided with a first spraying pipe (3) and a second spraying pipe (4), the first spraying pipe (3) and the second spraying pipe (4) are respectively arranged in the areas of the spraying tower (1) at the two sides of the partition plate (2), the first spraying pipe (3) is connected with a liquid inlet main pipe (5), the second spraying pipe (4) is connected with the liquid inlet main pipe (5) through a liquid inlet branch pipe (15) wound outside the spraying tower (1), and the liquid inlet main pipe (5) extends into a liquid storage tank (6) at one side of the spraying tower (1);

the positions of two sides of the spray tower (1) close to the lower end are respectively provided with an air inlet pipe (10) and an air outlet pipe (11), the air outlet pipe (11) is connected with a demister (12), and the demister (12) is connected with a fan (13).

2. The exhaust gas spray purification treatment system according to claim 1, wherein: the first spray pipe (3) and the second spray pipe (4) respectively comprise at least two rows of pipelines, and downward spray heads (16) are arranged on the parts of the first spray pipe (3) and the second spray pipe (4) positioned in the spray tower (1).

3. The exhaust gas spray purification treatment system according to claim 1, wherein: and a liquid feeding pump (7) is arranged on the liquid inlet main pipe (5).

4. The exhaust gas spray purification treatment system according to claim 1, wherein: and a liquid supplementing pipe (8) is arranged on the liquid storage tank (6).

5. The exhaust gas spray purification treatment system according to claim 1, wherein: gather liquid base (101) top surface adopt by both sides to the structure that the middle part inclines downwards, baffle (2) are fixed at the middle part of gathering liquid base (101), gather and be equipped with on the liquid base (101) top surface of gathering of liquid base (101) both sides and gather liquid groove (18) that are on a parallel with baffle (2), the tank bottom of gathering liquid groove (18) adopts by both ends to the decurrent structure of middle part slope, the middle part of gathering liquid groove (18) is equipped with down liquid hole (19), liquid return pipe (9) one end is connected with liquid reserve tank (6), the other end inserts and sets up in gathering liquid base (101) and with down liquid hole (19) intercommunication.

6. The exhaust gas spray purification treatment system according to claim 1, wherein: and a water replenishing pipe (17) is also arranged on the liquid inlet branch pipe (15).