CN217409818U - Desulfurizing tower defoaming agent dilutes and adds feeder apparatus - Google Patents
Desulfurizing tower defoaming agent dilutes and adds feeder apparatus Download PDFInfo
- Publication number
- CN217409818U CN217409818U CN202220926237.2U CN202220926237U CN217409818U CN 217409818 U CN217409818 U CN 217409818U CN 202220926237 U CN202220926237 U CN 202220926237U CN 217409818 U CN217409818 U CN 217409818U
- Authority
- CN
- China
- Prior art keywords
- diluting
- stock solution
- defoaming agent
- tank
- desulfurizing tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a desulfurizing tower defoaming agent diluting and feeding device, which comprises at least two stock solution boxes and a diluting box, wherein a quantitative tank is arranged between each stock solution box and the diluting box, and the stock solution boxes are communicated with the quantitative tank and the diluting box in sequence; the stock solution tank is provided with a stock solution filling port of the defoaming agent, and at least one stock solution tank is in a high liquid level state; the diluting box is provided with a diluting process water injection port, and an outlet pipeline of the diluting box is communicated to an inlet pipeline of a circulating pump of the desulfurizing tower, so that the diluent of the defoaming agent is mixed with the circulating slurry of the desulfurizing tower. The utility model always keeps at least one stock solution tank in a high liquid level state, and meets the requirement of emergency automatic feeding at any time; the diluent is supplied to the center of the inlet pipeline of the circulating pump of the desulfurizing tower, thereby not only avoiding the oxidative denaturation of the organic components of the defoaming agent caused by high-temperature flue gas at the inlet of the desulfurizing tower, but also realizing the uniform mixing of the defoaming agent in the desulfurizing tower; through setting up the ration jar, can accurate measurement defoaming agent stoste volume of throwing, and easily control.
Description
Technical Field
The utility model relates to a flue gas desulfurization technical field, concretely relates to feeder apparatus is thrown in desulfurizing tower defoaming agent dilution.
Background
The limestone-gypsum method flue gas desulfurization technique is the most widely applied flue gas desulfurization technique in the global thermal power plant, and the core device is a desulfurization tower. In the operation process, the phenomenon that the liquid level of the desulfurizing tower is normally displayed but slurry of the desulfurizing tower is foamed or even overflows is often caused, and a large amount of foam flows backwards to equipment such as a front end GGH and an induced draft fan through an inlet flue of the desulfurizing tower in serious conditions, so that the operation safety of a system is endangered, and the stable operation of the system is very unfavorable.
The main reasons for causing foaming of the slurry in the desulfurization tower include:
1) the oil feeding and the combustion of the boiler are insufficient in the starting or running process, and unburnt components enter the desulfurizing tower along with the tail flue gas of the boiler, so that the organic matter content of the slurry of the desulfurizing tower is increased.
2) The operation condition of a dust remover at the rear part of the boiler is not good, the concentration of flue gas and dust exceeds the standard, and impurities containing a large amount of inert substances enter the absorption tower, so that the heavy metal content of slurry in the absorption tower is increased.
3) Limestone for desulfurization contains excessive MgO (foaming agent) which reacts with sulfate ions to generate a large amount of foam.
4) The quality of the process water for desulfurization can not meet the design requirement, and COD (chemical oxygen demand) and BOD (biochemical oxygen demand) exceed the standard.
5) The dehydration system of the desulfurization device or the wastewater treatment system cannot be normally put into operation.
6) The boiler combustion condition is not good, and part of carbon particles or tar in the fly ash enters the absorption tower along with the flue gas.
At present, a thermal power plant generally adopts the following three modes to relieve the bubbling overflow phenomenon of a desulfurizing tower:
1) various substances which can enter the desulfurizing tower and cause foaming are reduced, such as the effect of a dust remover on the upstream of the desulfurizing tower is improved;
2) the operation mode is adjusted, such as the operation liquid level of the desulfurizing tower is reduced, the oxidation air quantity entering the desulfurizing tower is optimized, and the foaming overflow of the desulfurizing tower is relieved;
3) and adding a defoaming agent into the desulfurizing tower to inhibit the generation of foam or eliminate the generated foam.
Because various impurities cannot be completely prevented from entering the desulfurizing tower, the former two modes can only relieve foaming overflow to a certain extent, and the mode of adding the defoaming agent is generally required to inhibit or eliminate foam. At present, the defoaming agent added in a thermal power plant is basically added manually, namely a certain amount of defoaming agent is added into a drainage pit of a desulfurizing tower periodically or irregularly, and the mixture is diluted by a drainage pit stirrer and drainage pit slurry and then is injected into an absorption tower by a drainage pit pump; or when the serious bubble of the desulfurizing tower is found and even the overflow occurs, the defoaming agent is added into the drainage pit by emergency manual work. The manual feeding mode has the advantages of large labor capacity, untimely reaction, difficult control of feeding amount and easy excessive waste.
In order to solve the above problems, chinese patent No. cn201821152569.x discloses an automatic adding device for a desulfurization defoaming agent, comprising: the device comprises an original flue, an absorption tower, a dilution tank and a spraying component, wherein the original flue is communicated with the absorption tower; an antifoaming agent stock solution inlet of the diluting tank is connected with an antifoaming agent stock solution tank, a stirrer is arranged in the diluting tank, and a process water inlet is also formed in the diluting tank; the delivery pipe is provided with a booster pump. The device can realize the automatic addition of desulfurization defoaming agent, reduces artifical throwing work load, still has following problem:
1) when the defoaming agent in the stock solution tank is gradually consumed, the stock is less, the desulfurization tower foams at the moment and is about to overflow, and the stock of the defoaming agent in the stock solution tank does not meet the requirement of emergency automatic feeding, so that the desulfurization tower overflows easily.
2) Because the flue gas temperature at the inlet of the desulfurizing tower is high, the defoaming agent is sprayed from the inlet of the desulfurizing tower, and the organic components of the defoaming agent are oxidized and denatured at high temperature, so that the defoaming effect is influenced.
3) The viscosity of the desulfurization defoaming agent is high, the dosage fluctuation is large, and the raw liquid pump and the pipeline are small in designed pipe diameter and easy to block; if the designed pipe diameter is large, the flow is difficult to control, and excessive waste is easily caused.
4) The desulfurization defoaming agent usually contains components such as organic silicon, polyether and the like, the defoaming agent in the stock solution tank gradually deteriorates due to microbial propagation and the like, and when a new defoaming agent stock solution is added after the stock solution tank is used up, the residual defoaming agent deteriorating components in the stock solution tank and the stock solution pump pollute the newly added stock solution, so that a microbial source is provided, and the deterioration of the defoaming agent is accelerated.
5) Because of mixing with the raw water, the defoaming agent is very easy to deteriorate after being diluted, and the diluent in the diluting box cannot be emptied in time by the diluting pump, so that the residual diluent can pollute new diluent.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a desulfurizing tower defoaming agent dilutes and throws feeder apparatus to the not enough that above-mentioned prior art exists, can realize that the accurate ration of desulfurizing defoaming agent whole period is automatic to throw and throw, is showing the availability ratio and the reliability that improve the device.
The utility model discloses a solve the technical scheme that technical problem that the aforesaid provided adopted and be:
a desulfurizing tower defoaming agent diluting and feeding device comprises at least two stock solution boxes and a diluting box, wherein a quantifying tank is arranged between each stock solution box and the diluting box, and the stock solution boxes, the quantifying tanks and the diluting boxes are communicated in sequence; the stock solution boxes are provided with stock solution injection ports of the defoaming agent, and at least one stock solution box is in a high liquid level state; the dilution box is provided with a dilution process water injection port, and an outlet pipeline of the dilution box is communicated to an inlet pipeline of a circulating pump of the desulfurization tower, so that the diluent of the defoaming agent is mixed with the circulating slurry of the desulfurization tower.
In the above scheme, stock solution case sets up in the top of diluting the case, and the defoaming agent can get into diluting the case through flowing automatically.
In the scheme, the top of the stock solution tank is provided with a washing nozzle.
In the scheme, the stock solution tank is provided with a stock solution tank liquid level meter, the stock solution tank liquid level meter and the flushing nozzle are in associated control, and when the stock solution tank liquid level meter monitors that one of the stock solution tank defoaming agents is used up, the flushing nozzle is automatically started to flush the stock solution tank.
In the above scheme, the bottom of the stock solution tank is an inclined plane, and the outlet pipeline of the stock solution tank is arranged at the lowest part of the bottom of the inclined plane.
In the scheme, a communicating pipeline between the stock solution tank and the quantifying tank is provided with a stock solution tank outlet valve; and a quantitative tank outlet valve is arranged on a communication pipeline between the quantitative tank and the dilution tank.
In the scheme, the dilution tank is provided with a dilution tank liquid level meter; a stirrer is arranged in the dilution tank.
In the above scheme, the bottom of the dilution box is an inclined plane, and the outlet pipeline of the dilution box is arranged at the lowest part of the bottom of the inclined plane.
In the above scheme, the outlet pipeline of the dilution tank is connected with the inlet of the diluent pump, and the outlet pipeline of the diluent pump extends into the center of the inlet pipeline of the circulating pump of the desulfurization tower.
In the scheme, at least two diluent pumps are arranged in parallel and are mutually standby; the inlet of each diluent pump is provided with an inlet valve of the diluent pump, and the outlet of each diluent pump is provided with an outlet valve of the diluent pump.
The beneficial effects of the utility model reside in that:
1. the device always keeps at least one stock solution tank in a high liquid level state, and meets the requirement of emergency automatic feeding at any time.
2. The desulfurizing tower circulating pump entry pipeline center is supplied with to this device diluent, utilizes the circulating pump to mix diluent and circulation thick liquid, and the rethread sprays the layer and evenly arranges to the absorption tower in, has both avoided desulfurizing tower entry high temperature flue gas to lead to defoaming agent organic ingredient oxidative modification, has also realized the homogeneous mixing of defoaming agent in the desulfurizing tower.
3. The device is arranged at a high position through the stock solution box, and a stock solution pump is not needed; through setting up the ration jar, can accurate measurement defoaming agent stoste volume of throwing, and easily control.
4. But this device stoste case defoaming agent exhausts the back self-flushing drain, avoids remaining defoaming agent to provide the microorganism source for newly adding the defoaming agent, causes the defoaming agent rotten.
5. The diluent of the device can be drained from the inclined plane bottom, and the device can be timely washed by dilution process water, so that the pollution of the residual diluent to new diluent is avoided.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a schematic structural diagram of the desulfurizing tower defoaming agent diluting and feeding device.
In the figure: 10. a stock solution tank; 11. a stock solution injection port; 12. flushing the nozzle; 13. a stock solution tank level gauge; 14. an outlet valve of the stock solution tank;
20. a dosing tank; 21. a dosing tank outlet valve;
30. a dilution tank; 31. a dilution process water inlet; 32. a stirrer; 33. a dilution tank level gauge;
40. a diluent pump; 41. a diluent pump inlet valve; 42. an outlet valve of the diluent pump; 43. an outlet pipeline of the diluent pump;
50. a communicating pipe;
200. a desulfurizing tower; 201. a desulfurization tower circulating pump; 202. an inlet pipeline of a circulating pump of the desulfurizing tower; 203. an outlet pipeline of the desulfurizing tower circulating pump; 204. a spray layer; 205. and (4) an inlet of the desulfurizing tower.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, for the embodiment of the utility model provides a pair of desulfurizing tower defoaming agent dilutes and throws feeder apparatus, including two stoste cases 10 and one dilution case 30, two stoste cases 10 set up side by side in the top of dilution case 30, and the defoaming agent accessible in the stoste case 10 flows automatically and gets into dilution case 30, need not to be equipped with the stoste pump in addition. A quantitative tank 20 is arranged between each stock solution tank 10 and the dilution tank 30, and the stock solution tank 10, the quantitative tank 20 and the dilution tank 30 are communicated in sequence. A raw liquid tank outlet valve 14 is arranged on a communication pipeline between the raw liquid tank 10 and the quantifying tank 20, and a quantifying tank outlet valve 21 is arranged on a communication pipeline between the quantifying tank 20 and the diluting tank 30. The dosage of the defoaming agent added into the dilution tank 30 can be controlled by controlling the opening and closing times of the stock solution tank outlet valve 14 and the quantitative tank outlet valve 21, and one tank of the defoaming agent is added after the valves are opened and closed once. The stock solution box 10 is provided with a stock solution filling port 11 of a defoaming agent, so that at least one stock solution box 10 is in a high liquid level state, and the requirement of emergency automatic feeding is met at any time. Dilution box 30 is equipped with dilution process water inlet 31, dilution box 30 outlet pipe says and 40 entry linkage of diluent pump, diluent pump outlet pipe way 43 stretches into desulfurizing tower circulating pump inlet pipe 202 center, the defoaming agent diluent supplies behind desulfurizing tower circulating pump inlet pipe 202 center, utilize desulfurizing tower circulating pump 201 to mix the circulating slurry of diluent and desulfurizing tower 200, again through desulfurizing tower circulating pump outlet pipe way 203, evenly arrange the desulfurizing tower 200 in through spraying layer 204, both avoided desulfurizing tower entry 205 high temperature flue gas to lead to the organic composition oxidative degradation of defoaming agent, the homogeneous mixing of defoaming agent in the desulfurizing tower has also been realized.
Further optimize, stoste case 10 top is equipped with washing nozzle 12, and stoste case 10 is equipped with stoste case level gauge 13, and stoste case 10 bottom is the inclined plane, and stoste case 10 outlet pipe says and installs the bottommost at the inclined plane bottom. The flushing nozzle 12 and the stock solution tank level gauge 13 are controlled in a correlation mode, when the stock solution tank level gauge 13 monitors that the defoaming agent in the first stock solution tank 10 is used up, the flushing nozzle 12 is automatically started to flush the stock solution tank 10, flushing water can completely flow through a sloping plate bottom pipeline, and the stock solution tank 10 can be completely flushed and dried, and then the defoaming agent can be filled in the stock solution tank 10.
Further preferably, the dilution tank 30 is provided with a dilution tank liquid level meter 33, the stirrer 32 is arranged in the dilution tank 30, the bottom of the dilution tank 30 is an inclined plane, and an outlet pipeline of the dilution tank 30 is arranged at the lowest part of the bottom of the inclined plane. After the defoaming agent stock solution enters the defoaming agent diluting tank 30 through the quantifying tank 20, diluting water is injected from a diluting process water injection port 31, the diluting water amount is controlled through a diluting tank liquid level meter 33, the defoaming agent stock solution is stirred and mixed through a stirrer 32, and the defoaming agent stock solution is uniformly mixed and then discharged from an outlet pipeline of the diluting tank 30 under the action of a diluting liquid pump 40.
Further optimization, the stock solution tank outlet valve 14 and the quantitative tank outlet valve 21 can be set to be timing switches according to the actual desulfurization operation condition of the power plant, and can also be emergently opened when an overflow alarm signal is obtained.
Further optimization, the top of the quantitative tank 20 is communicated with the upper part of the defoamer stock solution tank 10 through a communicating pipe 50, so that air pressure balance is ensured.
Further optimization, at least two diluent pumps 40 are arranged in parallel and are mutually standby; each diluent pump 40 has a diluent pump inlet valve 41 at its inlet and a diluent pump outlet valve 42 at its outlet. When the diluent is required to be supplied to the desulfurization tower, the diluent pump inlet valve 41 and the diluent pump outlet valve 42 of one line are opened, and the diluent pump 40 is operated.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the scope of the present invention, and these forms are all within the protection scope of the present invention.
Claims (10)
1. A diluting and feeding device for a defoaming agent of a desulfurizing tower is characterized by comprising at least two stock solution boxes and a diluting box, wherein a quantifying tank is arranged between each stock solution box and the diluting box, and the stock solution boxes, the quantifying tanks and the diluting box are communicated in sequence; the stock solution tank is provided with a stock solution filling port of the defoaming agent, and at least one stock solution tank is in a high liquid level state; the diluting box is provided with a diluting process water injection port, and an outlet pipeline of the diluting box is communicated to an inlet pipeline of a circulating pump of the desulfurizing tower, so that the defoaming agent diluent is mixed with the circulating slurry of the desulfurizing tower.
2. The desulfurizing tower defoaming agent diluting and adding device according to claim 1, wherein the stock solution tank is arranged above the diluting tank, and the defoaming agent can enter the diluting tank through self-flowing.
3. The desulfurizing tower defoaming agent diluting and adding device according to claim 1, wherein a flushing nozzle is arranged at the top of the stock solution tank.
4. The desulfurizing tower defoaming agent diluting and feeding device according to claim 3, wherein the stock solution tank is provided with a stock solution tank liquid level meter, the stock solution tank liquid level meter is in control connection with the flushing nozzle, and when the stock solution tank liquid level meter monitors that one stock solution tank defoaming agent is used up, the flushing nozzle is automatically started to flush the stock solution tank.
5. The desulfurizing tower defoaming agent diluting and adding device according to any one of claims 1-4, wherein the bottom of the stock solution tank is an inclined plane, and an outlet pipeline of the stock solution tank is arranged at the lowest part of the bottom of the inclined plane.
6. The desulfurizing tower defoaming agent diluting and feeding device according to claim 1, wherein a raw liquid tank outlet valve is arranged on a communication pipeline between the raw liquid tank and the quantitative tank; and a quantitative tank outlet valve is arranged on a communication pipeline between the quantitative tank and the dilution tank.
7. The desulfurizing tower defoaming agent diluting and adding device according to claim 1, wherein the diluting box is provided with a diluting box liquid level meter; a stirrer is arranged in the dilution tank.
8. The desulfurizing tower defoaming agent diluting and adding device according to claim 1, wherein the bottom of the diluting box is an inclined plane, and an outlet pipeline of the diluting box is arranged at the lowest part of the bottom of the inclined plane.
9. The desulfurizing tower defoaming agent diluting and adding device according to claim 1, wherein an outlet pipeline of the diluting box is connected with an inlet of a diluent pump, and an outlet pipeline of the diluent pump extends into the center of an inlet pipeline of a circulating pump of the desulfurizing tower.
10. The desulfurizing tower defoaming agent diluting and feeding device according to claim 9, wherein at least two diluting liquid pumps are arranged in parallel and are mutually reserved; the inlet of each diluent pump is provided with an inlet valve of the diluent pump, and the outlet of each diluent pump is provided with an outlet valve of the diluent pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220926237.2U CN217409818U (en) | 2022-04-18 | 2022-04-18 | Desulfurizing tower defoaming agent dilutes and adds feeder apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220926237.2U CN217409818U (en) | 2022-04-18 | 2022-04-18 | Desulfurizing tower defoaming agent dilutes and adds feeder apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217409818U true CN217409818U (en) | 2022-09-13 |
Family
ID=83182907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220926237.2U Active CN217409818U (en) | 2022-04-18 | 2022-04-18 | Desulfurizing tower defoaming agent dilutes and adds feeder apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217409818U (en) |
-
2022
- 2022-04-18 CN CN202220926237.2U patent/CN217409818U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107500408A (en) | A kind of multistage A/O techniques aeration control system fed back based on ammonia nitrogen and dissolved oxygen | |
| CN102495103A (en) | Real-time monitoring system and method for biological inhibition of urban sewage based on DO mutation rate | |
| CN216062759U (en) | Disinfectant diluting and adding device | |
| CN217409818U (en) | Desulfurizing tower defoaming agent dilutes and adds feeder apparatus | |
| CN107224862A (en) | It is a kind of to carry out low concentration SO using fuzzy alkali adding method2The device and method of flue gas desulfurization | |
| CN113562935A (en) | Artificial intelligence control system and method for reducing foam of coal gas industrial wastewater | |
| CN103068745B (en) | Systems and methods for control of a gas or chemical | |
| CN201825752U (en) | High-efficient sewage deoiling partial reflux dissolved gas floating device for petrochemical oil refining | |
| CN211570330U (en) | Fenton air supporting materialized water treatment equipment | |
| CN218342493U (en) | Admixture adds material equipment for concrete | |
| CN115572010A (en) | Concrete production wastewater treatment system and method | |
| CN212334746U (en) | Anaerobic reactor for wastewater treatment | |
| CN212651622U (en) | Ammonia desulphurization device for preventing ammonia from escaping | |
| CN211800093U (en) | Disinfectant diluting device for secondary water supply tank | |
| CN210645242U (en) | Acid-adding mixing defoamer for DTRO (draw texturing yarn) garbage penetrating fluid treatment process | |
| CN217025924U (en) | Wet anaerobic fermentation tank | |
| CN217645899U (en) | Automatic defoaming system for slurry of limestone-gypsum wet flue gas desulfurization absorption tower | |
| CN111068500A (en) | Circulating fluidized bed flue gas desulfurization system | |
| CN205575679U (en) | Processing apparatus of dairy waste water dross decrement | |
| CN205892843U (en) | High concentration high acid ization degree papermaking pretreatment of water device that gives up | |
| CN111717990A (en) | Anaerobic reactor for wastewater treatment and method for treating wastewater | |
| CN205095639U (en) | Adopt gas -liquid absorbing device of two thick liquid ponds dual cycle | |
| CN219942486U (en) | Stirring mechanism and desulfurization defoaming agent adding device | |
| CN219091641U (en) | Device for rapidly controlling SO2 emission concentration | |
| CN220245595U (en) | Ground sulfur removal mixing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |