阅读说明：本技术 一种气体净化方法及处理系统 (A kind of method for gas purification and processing system ) 是由 颜勇 于 2018-05-22 设计创作，主要内容包括：本发明公开了一种气体净化方法及处理系统,包括反应塔、脱水塔、净化池、储液池和碱液箱,其特征在于,所述反应塔和脱水塔并列设置且反应塔侧面顶部和脱水塔顶部通过主连接管相连通,在反应塔内上部设有进气扩张管,进气扩张管上端伸出反应塔上方并连接进气管道,在进气扩张管底部连接有进气盘,通过进气管道对烟气温度进行控制,避免烟气在进行喷淋高温雾化严重,从而提高烟气的处理效率,多级脱水处理使排出的烟气干燥,有效对烟气排出的温度及湿度进行控制,提高处理效果,且装置能够对洗涤液进行循环利用,节约了资源,通过洗涤液热交换方式对烟气进行温度控制,合理利用资源,进一步降低了处理成本。(The invention discloses a kind of method for gas purification and processing systems, including reaction tower, dehydrating tower, clarifier-tank, liquid storage tank and lye tank, it is characterized in that, the reaction tower is set side by side with dehydrating tower and reaction tower side top is connected at the top of dehydrating tower by main connecting tube, air inlet expansion pipe is equipped in reaction tower internal upper part, air inlet expansion pipe upper end is stretched out above reaction tower and connects admission line, air inlet disk is connected in air inlet expansion bottom of the tube, flue-gas temperature is controlled by admission line, avoid flue gas carry out spray high-temperature atomizing it is serious, to improve the treatment effeciency of flue gas, multistage dehydration makes the flue gas drying of discharge, effectively the temperature and humidity of flue gas discharge are controlled, improve treatment effect, and device can recycle cleaning solution, resource is saved, by cleaning solution heat exchange method to flue gas Temperature control is carried out, resource is rationally utilized, further reduced processing cost.)

1. a kind of gas purification processing system, including reaction tower, dehydrating tower, clarifier-tank, liquid storage tank and lye tank, feature exist In, the reaction tower is set side by side with dehydrating tower and reaction tower side top is connected at the top of dehydrating tower by main connecting tube, Be equipped with air inlet expansion pipe in reaction tower internal upper part, air inlet expansion pipe upper end, which is stretched out above reaction tower, simultaneously connects admission line, into Gas expansion bottom of the tube is connected with air inlet disk, and air inlet disk is located at lower part in reaction tower；The liquid storage tank is located at below reaction tower, is storing up Sprinkling liquid supply pipe and heat exchange liquid supply pipe are equipped in liquid pool, sprinkling liquid supply pipe upper end protrudes into air inlet expansion pipe top and is connected with spray Leaching is gone, and preceding on admission line outer wall to be equipped with coil pipe, the coil pipe both ends are connected with heat exchange liquid supply pipe, in sprinkling feed flow Sprinkling elevator pump and heat exchange elevator pump are respectively equipped on pipe and heat exchange liquid supply pipe, in the connection of admission line and air inlet expansion pipe Place is equipped with temperature monitoring；Reaction tower liquid outlet is offered in reaction tower bottom, first is connected on reaction tower liquid outlet and is gone out Liquid pipe, the first outlet tube lower end are located in clarifier-tank；The dehydrating tower side lower offers exhaust outlet, opens in dehydration tower bottom Equipped with dehydrating tower liquid outlet, the second outlet tube, the second outlet tube lower end and the first outlet tube are connected on dehydrating tower liquid outlet Middle part docking；PH controller and alkali liquor pipe are installed, the alkali liquor pipe other end protrudes into clarifier-tank, PH controller on the lye tank Be connected with PH detector, the PH detector is located in liquid storage tank, between liquid storage tank and clarifier-tank be equipped with respectively with two pond bodies The purification outlet tube being connected.

2. a kind of gas purification processing system according to claim 1, which is characterized in that the air inlet disc main body is in cylinder Shape, air inlet disc side and bottom are enclosuring structure, on air inlet disk top surface, air inlet expansion tube edges be along the circumferential direction equipped with it is more A circular stomata.

3. a kind of gas purification processing system according to claim 2, which is characterized in that the air inlet expansion pipe is located at anti- Answer one in tower section from top to bottom diameter be gradually increased.

4. a kind of gas purification processing system according to claim 3, which is characterized in that be equipped with dehydration in the reaction tower Ring is dehydrated inside and outside ring and expands pipe outer wall with air inlet respectively, reacts inner wall of tower sealing docking, and is dehydrated ring and is located on air inlet disk Side.

5. a kind of gas purification processing system according to claim 4, which is characterized in that first outlet tube, second Valve is equipped on outlet tube, alkali liquor pipe and purification outlet tube

A kind of processing method of gas purification processing system described in -5 according to claim 1, which is characterized in that pass through air inlet pipe Road control enter reaction tower in gas temperature, in reaction tower by spray gas is washed, removing sour gas and Then suspended particulate sloughs moisture in gas by dehydrating tower.

6. a kind of method for gas purification according to claim 6, which is characterized in that specific steps are as follows: one, pass through temperature supervise It surveys device and monitors gas temperature, control gas temperature at 80 DEG C hereinafter, heat exchange promotes pump startup and will purify when temperature is higher than this value Liquid storage, which is up-shifted at coil pipe, in pond carries out heat exchange cooling with gas；Two, the pH value of liquid storage tank is detected by PH detector, And the pH value that will test feeds back to PH controller, PH controller controls lye tank adding to clarifier-tank according to the pH value of feedback Alkali number.

Technical field

The present invention relates to environmental protection, specifically a kind of method for gas purification and processing system.

Background technique

The blast furnace flue gas generated in blast furnace ironmaking process becomes height after gravitational precipitator, dry-method bag-type dust collecting device dedusting Furnace neat stress, dustiness≤5mg/m3,150-250 DEG C of flue-gas temperature；When carrying out the purification of flue gas, high temperature can cause pipeline Slowly damage, and when high-temperature flue gas and spray liquid are combined, is easy to produce gasification and reduces treatment effeciency, meanwhile, spray liquid makes Dosage is larger, and the generation for leading to secondary pollution cannot be recycled, and also increases processing cost, and conventional cooling method into One step brings the loss of the energy.

Summary of the invention

The purpose of the present invention is to provide a kind of method for gas purification and processing systems, to solve to mention in above-mentioned background technique Out the problem of.

To achieve the above object, the invention provides the following technical scheme:

A kind of gas purification processing system, including reaction tower, dehydrating tower, clarifier-tank, liquid storage tank and lye tank, the reaction tower and Dehydrating tower is set side by side and reaction tower side top is connected at the top of dehydrating tower by main connecting tube, sets in reaction tower internal upper part There is air inlet expansion pipe, admission line is stretched out above reaction tower and connected in air inlet expansion pipe upper end, in air inlet expansion bottom of the tube connection There is air inlet disk, air inlet disk is located at lower part in reaction tower；The liquid storage tank is located at below reaction tower, and sprinkling is equipped in liquid storage tank and is supplied Liquid pipe and heat exchange liquid supply pipe, sprinkling liquid supply pipe upper end protrudes into air inlet expansion pipe top and is connected with spray, in admission line Outer wall goes forward to be equipped with coil pipe, and the coil pipe both ends are connected with heat exchange liquid supply pipe, in sprinkling liquid supply pipe and heat exchange feed flow It is respectively equipped with sprinkling elevator pump and heat exchange elevator pump on pipe, is equipped with temperature monitoring in the junction of admission line and air inlet expansion pipe Device；Reaction tower liquid outlet is offered in reaction tower bottom, the first outlet tube, the first outlet tube are connected on reaction tower liquid outlet Lower end is located in clarifier-tank；The dehydrating tower side lower offers exhaust outlet, offers dehydrating tower in dehydration tower bottom and goes out liquid Mouthful, it is connected with the second outlet tube on dehydrating tower liquid outlet, is docked in the middle part of the second outlet tube lower end and the first outlet tube；The alkali PH controller and alkali liquor pipe are installed in liquid case, the alkali liquor pipe other end protrudes into clarifier-tank, and PH controller is connected with PH detector, The PH detector is located in liquid storage tank, is equipped between liquid storage tank and clarifier-tank and purifies liquid with what two pond bodies were connected respectively Pipe.

As a preferred solution of the present invention: the air inlet disc main body is cylindrical, and air inlet disc side and bottom are sealing Structure, on air inlet disk top surface, air inlet expansion tube edges be along the circumferential direction equipped with multiple circular stomatas.

As further preferred embodiment of the invention: the air inlet expansion manages one section be located in reaction tower from top to bottom Diameter is gradually increased.

As further preferred embodiment of the invention: being equipped with dehydration ring in the reaction tower, be dehydrated inside and outside ring and divide Pipe outer wall is expanded with air inlet, reacts inner wall of tower sealing docking, and is dehydrated ring and is located above air inlet disk.

As the present invention further preferred embodiment: first outlet tube, the second outlet tube, alkali liquor pipe and purifying Valve is equipped in liquid pipe.

A kind of method for gas purification enters the gas temperature in reaction tower by admission line control, leads in reaction tower It crosses spray to wash gas, removes sour gas and suspended particulate, moisture in gas is then sloughed by dehydrating tower, have Body step are as follows:

One, gas temperature is monitored by temperature monitoring, controls gas temperature at 80 DEG C hereinafter, changing when temperature is higher than this value Heat promotes pump startup and is up-shifted to liquid storage in clarifier-tank at coil pipe and gas progress heat exchange cooling.

Two, the pH value of liquid storage tank is detected by PH detector, and the pH value that will test feeds back to PH controller, PH control Device processed controls caustic dosage of the lye tank to clarifier-tank according to the pH value of feedback.

Compared with prior art, it the beneficial effects of the present invention are: being controlled by admission line flue-gas temperature, avoids Flue gas is to carry out spray high-temperature atomizing serious, to improve the treatment effeciency of flue gas, multistage dehydration keeps the flue gas of discharge dry It is dry, effectively the temperature and humidity of flue gas discharge are controlled, improve treatment effect, and device can recycle cleaning solution It utilizes, has saved resource, temperature control is carried out to flue gas by cleaning solution heat exchange method, resource is rationally utilized, further drops Low processing cost.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is the cross-sectional view of admission line in the present invention.

Fig. 3 is the isometric side view of air inlet disk in the present invention.

1- admission line in figure, 2- reaction tower, 3- dehydrating tower, the main connecting tube of 4-, 5- clarifier-tank, 6- liquid storage tank, 7- lye Case, 8- spray liquid supply pipe, and 9- sprays elevator pump, 10- heat exchange liquid supply pipe, 11- heat exchange elevator pump, 12- coil pipe, 13- temperature prison Device, 14- spray thrower are surveyed, 15- air inlet expansion is managed, 16- air inlet disk, 161- stomata, 17- reaction tower liquid outlet, and 18- first goes out liquid Pipe, 19- exhaust outlet, 20- dehydrating tower liquid outlet, the second outlet tube of 21-, 22-PH controller, 23- alkali liquor pipe, 24-PH detector, 25- purifies outlet tube.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Please refer to Fig. 1-3, in the embodiment of the present invention, a kind of gas purification processing system, including reaction tower 1, dehydrating tower 2, Clarifier-tank 5, liquid storage tank 6 and lye tank 7, the reaction tower 1 and dehydrating tower 2 are set side by side and 1 side top of reaction tower and dehydration It is connected at the top of tower 2 by main connecting tube 4, is equipped with air inlet in 1 internal upper part of reaction tower and expands pipe 15, air inlet expansion 15 upper end of pipe is stretched The top of reaction tower 1 and admission line 1 is connected out, air inlet expansion pipe 15 is located at one section in reaction tower 1, and diameter is gradually from top to bottom Increase, is connected with air inlet disk 16 in air inlet expansion 15 bottom of pipe, air inlet disk 16 is located at lower part in reaction tower 1,16 main body of air inlet disk Cylindrical, 16 side of air inlet disk and bottom are enclosuring structure, on 16 top surface of air inlet disk, the circle of air inlet expansion 15 edge of pipe edge Circumferential direction is equipped with multiple circular stomatas 161；The liquid storage tank 6 is located at 1 lower section of reaction tower, is equipped with sprinkling in liquid storage tank 6 and supplies Liquid pipe 8 and heat exchange liquid supply pipe 10, sprinkling 8 upper end of liquid supply pipe, which protrudes into air inlet expansion 15 top of pipe and is connected with spray, goes 14, In 1 outer wall of admission line goes forward to be equipped with coil pipe 12, and 12 both ends of coil pipe are connected with heat exchange liquid supply pipe 10, in sprinkling feed flow It is respectively equipped with sprinkling elevator pump 9 and heat exchange elevator pump 11 on pipe 8 and heat exchange liquid supply pipe 10, is expanded in admission line 1 and air inlet The junction of pipe 15 is equipped with temperature monitoring 13；It is equipped with dehydration ring in reaction tower 1, is dehydrated inside and outside ring and expands respectively with air inlet 15 outer wall of pipe, the sealing docking of 2 inner wall of reaction tower are opened, and is dehydrated ring and is located at 16 top of air inlet disk, is offered instead in 2 bottom of reaction tower Tower liquid outlet 17 is answered, the first outlet tube 18 is connected on reaction tower liquid outlet 17,18 lower end of the first outlet tube is located at clarifier-tank 5 It is interior；

3 side lower of dehydrating tower offers exhaust outlet 19, offers dehydrating tower liquid outlet 20 in 3 bottom of dehydrating tower, de- It is connected with the second outlet tube 21 on water tower liquid outlet 20, is docked in the middle part of 21 lower end of the second outlet tube and the first outlet tube 18；

PH controller 22 and alkali liquor pipe 23 are installed, 23 other end of alkali liquor pipe protrudes into clarifier-tank 5, PH control on the lye tank 7 Device 22 processed is connected with PH detector 24, and the PH detector 24 is located in liquid storage tank 6, is equipped between liquid storage tank 6 and clarifier-tank 5 The purification outlet tube 25 being connected respectively with two pond bodies；

Valve is equipped on first outlet tube 18, the second outlet tube 21, alkali liquor pipe 23 and purification outlet tube 25；

In the embodiment of the present invention, a kind of method for gas purification enters the gas temperature in reaction tower 2 by the control of admission line 1, Gas is washed by spray in reaction tower 2, removes sour gas and suspended particulate, is then sloughed by dehydrating tower 3 Moisture in gas, specific method step are as follows:

Gas temperature is monitored by temperature monitoring 13, controls gas temperature at 80 DEG C hereinafter, exchanging heat when temperature is higher than this value Liquid storage in clarifier-tank 5 is up-shifted at coil pipe 12 by the starting of elevator pump 11 carries out heat exchange cooling with gas；Gas is by reacting 2 entrance of tower enters in reaction tower 2 by air inlet expansion pipe 15, and spray thrower 14 sprays into the cleaning solution of atomization, gas into pipeline Flow velocity gradually decreases in air inlet expansion pipe 15, and enters in reaction tower 2, and cleaning solution drop is in gravity in reaction tower 2 The bottom of reaction tower 2 is fallen under effect；

Gas after washed moves upwards in reaction tower 2, and carries out primary dewatering by dehydration ring, what primary dewatering was completed Gas enters dehydrating tower 3 by main connecting tube 4, and second dehydration is carried out in dehydrating tower 3；The water of abjection passes through the first outlet tube 18 Neutralization purification is back in clarifier-tank 5 and carried out with the second outlet tube 21, and the PH detector 24 in liquid storage tank 6 is for detecting liquid storage The pH value in pond 6, and the pH value that will test feeds back to PH controller 22, PH controller, 22 control alkali according to the pH value of feedback Caustic dosage of the liquid case 7 to clarifier-tank 5.

It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.