CN214880901U - Device for preventing desulfurization waste water from evaporating, caking and blocking in flue - Google Patents
Device for preventing desulfurization waste water from evaporating, caking and blocking in flue Download PDFInfo
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- CN214880901U CN214880901U CN202121426433.5U CN202121426433U CN214880901U CN 214880901 U CN214880901 U CN 214880901U CN 202121426433 U CN202121426433 U CN 202121426433U CN 214880901 U CN214880901 U CN 214880901U
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Abstract
The utility model discloses a device for preventing desulfurization waste water from evaporating, caking and blocking in a flue, which comprises a dosing device and an auxiliary flue arranged on a main flue of a power plant; an auxiliary flue drying tower is arranged on the auxiliary flue; the inlet and outlet of the auxiliary flue are connected with the main flue of the power plant, and the middle part of the main flue connected with the flue gas inlet and outlet of the auxiliary flue is provided with a flashboard door or a valve for switching on and off; the bottom of the auxiliary flue drying tower is provided with an ash discharge port; the dosing device is connected to desulfurization waste water transfer chain way for add in the desulfurization waste water to in the desulfurization waste water transfer chain way and prevent the caking medicament, desulfurization waste water transfer chain way is connected to the spray gun at supplementary flue drying tower top, is used for spouting desulfurization waste water in supplementary flue drying tower and high temperature flue gas mixing evaporation.
Description
Technical Field
The utility model belongs to the waste water treatment field, concretely relates to flue evaporation treatment desulfurization waste water technology behind air preheater of firepower power plant, especially a device that prevents desulfurization waste water at flue evaporation caking jam.
Background
The thermal power plant has various types such as coal, gas and waste incineration, the daily water consumption and water discharge are very large, and the treatment work of the desulfurization waste water faces huge pressure along with the issuance and implementation of various national environmental protection laws and regulations and water-saving plans. The traditional treatment method can not meet the requirements of environmental protection laws and policies.
Application number is CN 210595646U's patent discloses a zero release flue duct evaporating system of desulfurization waste water, send into the flue duct between air preheater and the electrostatic precipitator with desulfurization waste water through the booster pump, through the desulfurization waste water injection apparatus who sets up here with waste water atomization, the waste heat that utilizes the flue gas makes desulfurization waste water evaporation to dryness, the particulate matter of formation follows the flue gas and gets into the electrostatic precipitator and be caught the getting rid of together to realize the zero release of desulfurization waste water. Meanwhile, the triple-header treatment device is fixedly arranged on the liquid inlet pipe, so that large-particle suspended matters, calcium and magnesium hardness ions, partial heavy metal ions and the like in the wastewater are removed, the water quality of the wastewater meets the water inlet requirement of the next treatment link, and the problems of high reverse osmosis and pretreatment process cost, high cost, unsuitability for long-term use and the like in the traditional desulfurization wastewater treatment process technology are solved. However, the system has a new problem that the flue is blocked by large-area hard blocks in the treatment process, and once the flue is blocked, the system needs to be stopped for cleaning, so that the production is necessarily influenced, as shown in fig. 1.
Application number is CN 111453803A's patent discloses a concentrated decrement of high salt waste water low temperature bypass thermal method and flue evaporation zero discharge system, including air heater, dust remover, desulfurization absorption tower, waste water storage box, integrated device, distribution module and atomizing device, newly set up the flue before the dust remover behind the air heater, this application has nevertheless provided and has formed one with former flue and has used one and be equipped with, but the problem of the big area knot piece jam behind the same unable solution flue evaporation desulfurization waste water.
Application number is CN 105948364A discloses desulfurization waste water zero release processing system based on bypass flue evaporation, deposits pretreatment systems, two membrane process concentration decrement system, bypass flue evaporation system including the second grade, and desulfurization waste water passes through get into after the second grade deposits pretreatment systems handles two membrane process concentration decrement system, will dense water after two membrane process concentration decrement system handles is introduced bypass flue evaporation system, bypass flue utilize high temperature flue gas to realize desulfurization waste water zero release, and desulfurization waste water gets into desulfurization waste water storage pool after clarification is qualified earlier, spouts bypass flue evaporator through the atomizing of double-fluid spray gun, and bypass flue evaporator introduces a small amount (with do not influence boiler efficiency as the standard) high temperature flue gas from the entry of air preheater, with the desulfurization waste water rapid evaporation to dryness after the atomizing. However, the system also has a new problem that the flue is blocked by the hardened blocks in a large area, and because high-temperature flue gas is introduced from the front of the air preheater, no design margin or a unit with insufficient design margin is provided for the air preheater, the bypass flue evaporator will inevitably influence the operation of the system, and the introduced flue gas amount is limited, so that the desulfurization wastewater cannot be treated to the maximum extent.
Although the above three technical schemes can meet the requirement of wastewater treatment, a huge problem is faced in the operation process: when the desulfurization waste water returns to the main flue or the bypass evaporator for evaporation, the total dissolved solids can not enter the dust remover along with the flue gas after the moisture is evaporated to dryness, most of the total dissolved solids can be separated out on the inner wall to form large-area hard blocks, so that the operation condition of the system is rapidly deteriorated, the spray gun can be blocked while the flue is blocked, the atomization effect is influenced, and the system is finally stopped to influence normal production. The technical schemes can not process the desulfurization wastewater and ensure the stable and continuous production operation of the system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a prevent that desulfurization waste water from evaporating the device that the caking blockked up in the flue, effectual solution desulfurization waste water is difficult for the problem of clearance behind the caking in the flue evaporation process, ensures when handling desulfurization waste water, and production can continuously move.
In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:
a device for preventing desulfurization waste water from evaporating, caking and blocking in a flue comprises a dosing device and an auxiliary flue arranged on a main flue of a power plant; an auxiliary flue drying tower is arranged on the auxiliary flue; the two connecting ends of the auxiliary flue and the main flue of the power plant and the middle part of the main flue of the power plant are respectively provided with a flashboard door or a valve for switching on and off; the bottom of the auxiliary flue drying tower is provided with an ash discharge port;
the dosing device is connected to the desulfurization waste water transfer chain way for add in the desulfurization waste water in to the desulfurization waste water transfer chain and prevent the medicament that agglomerates, desulfurization waste water transfer chain is connected to the spray gun at supplementary flue drying tower top, is used for spouting desulfurization waste water into in the supplementary flue drying tower with the mixed evaporation of high temperature flue gas.
Specifically, the auxiliary flue drying tower is positioned at the side of a main flue of the power plant behind the air preheater, the inlet of the auxiliary flue drying tower is connected with the main flue behind the air preheater through the auxiliary flue, and the outlet of the auxiliary flue drying tower is connected with the main flue of the power plant in front of the dust remover through the auxiliary flue; when a gate board door or a valve at the inlet and the outlet of the auxiliary flue is opened and a gate board door or a valve of the main flue is closed, high-temperature flue gas in the main flue of the power plant enters an auxiliary flue drying tower, is mixed and evaporated with desulfurization wastewater sprayed into the auxiliary flue drying tower at the same time, then returns to the main flue of the power plant through the auxiliary flue and is discharged for subsequent treatment; when the gate plate door or valve of the inlet and outlet of the auxiliary flue is closed and the gate plate door or valve of the main flue is opened, high-temperature flue gas is prevented from entering the auxiliary flue, and all the flue gas is discharged to subsequent treatment through the main flue of the power plant.
Further, the desulfurization waste water conveying line at least comprises a desulfurization waste water storage pool and a desulfurization waste water conveying pipeline connected to the auxiliary flue drying tower; the dosing device is connected to the desulfurization waste water storage pool and/or the desulfurization waste water conveying pipeline through pipelines.
Specifically, on charge device is connected to desulfurization waste water pipeline through the blender that sets up on desulfurization waste water pipeline, through the blender with prevent caking medicament in the charge device and desulfurization waste water misce bene in the desulfurization waste water pipeline, then send into together in the supplementary flue drying tower with high temperature flue gas mixing evaporation.
Furthermore, the desulfurization waste water conveying line comprises a desulfurization waste water conveying pipeline, and a desulfurization waste water storage pool, a concentration processing unit and a desulfurization waste water discharge pump which are sequentially connected through the desulfurization waste water conveying pipeline.
Specifically, the dosing device is connected to the desulfurization waste water storage pool, and a stirring device or an aeration device is arranged in the desulfurization waste water storage pool and is used for uniformly mixing the medicament in the dosing device and the desulfurization waste water in the desulfurization waste water storage pool.
Specifically, the dosing device comprises a medicament barrel, a dosing pipeline, a metering pump, a ball valve and an electric cabinet; one end of the dosing pipeline is connected with the chemical barrel, and the other end of the dosing pipeline is connected to the desulfurization wastewater conveying line; the ball valve sets up the tip of being connected at medicine pipeline and medicament bucket, the measuring pump is located the medicine pipeline to with electric cabinet signal connection, send into the desulfurization waste water conveying line through adding the medicine pipeline with the medicament in the medicament bucket through the measuring pump.
Furthermore, a Y-shaped filter and a back pressure valve are further arranged on the dosing pipeline, and the Y-shaped filter and the back pressure valve are sequentially arranged between the ball valve and the metering pump.
And further, a desulfurization wastewater discharge pump is arranged on the desulfurization wastewater conveying line and is in signal connection with the electric cabinet.
Has the advantages that:
the device of the utility model is communicated with the main flue behind the air preheater of the power plant, so that the gate plate door or the valve of the main flue can be closed, the gate plate door or the valve of the inlet and the outlet of the auxiliary flue can be opened, and the desulfurization waste water can be evaporated by high-temperature flue gas during production; and when dust and hardened lumps exist, the main flue damper door or valve is opened, and the damper door or valve at the inlet and the outlet of the auxiliary flue is closed, so that the main flue damper door or valve is disconnected from the main flue and then is independently cleaned, normal production operation of the system is not influenced, and the main flue damper door or valve can be connected with the main flue again to treat the desulfurization wastewater after being cleaned. The current technique that can only utilize a small amount of flue gas to handle partial desulfurization waste water of contrast, can effectively solve different scene through this device, the application problem of different operating modes, the reduction system causes the condition of stopping after blockking up because of evaporation desulfurization waste water, and desulfurization waste water is handled to the utilization flue gas of maximum limit amount, solve all desulfurization waste water problems in factory, the efficiency of system operation has been improved, the problem that desulfurization waste water got rid of has not only been solved, still ensure enterprise continuous production, bring huge value for the enterprise.
Drawings
These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.
FIG. 1 is a process diagram of the desulfurization waste water of the existing thermal power plant being sprayed into a main flue for treatment.
FIG. 2 is a schematic view of the whole structure of the device for preventing desulfurization waste water from blocking in flue evaporation and agglomeration.
Fig. 3 is a structural composition diagram of the medicine adding device of the utility model.
Wherein each reference numeral represents:
10, a medicine adding device; 101 a medicament cartridge; 102 a dosing line; 103 a metering pump; 104 ball valve; 105 an electric cabinet; a 106Y filter; 107 back pressure valve; 108 a first branch pipe; 109 a second branch tube; 20 a desulfurization waste water conveying line; 21, a desulfurization waste water storage tank; 22 a desulfurization waste water conveying pipeline; 23 a concentration processing unit; 24, a desulfurization wastewater discharge pump; 25 a mixer; 30, a main flue of the power plant; 301 auxiliary flues; 302 main flue damper door; 303 auxiliary flue inlet gate; 304 auxiliary stack outlet shutter door; 100 auxiliary flue drying tower; 110 ash discharge ports; 40 power plant boilers; 50 a pin removal device; 60 an air preheater; 70 a dust remover; 80 a wet desulphurization unit; and 90, a chimney.
Detailed Description
The invention will be better understood from the following examples.
The drawings in the specification show the structure, ratio, size, etc. only for the purpose of matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and not for the purpose of limiting the present invention, so the present invention does not have the essential meaning in the art, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "front", "rear", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
As shown in fig. 1, the desulfurization wastewater of the thermal power plant is sprayed into the main flue to be treated in the following manner:
high-temperature flue gas generated in the power plant boiler 40 passes through the power plant main flue 30 and is sequentially treated by the denitration device 50, the air preheater 60, the dust remover 70 and the wet desulphurization device 80 and then is discharged into the atmosphere through the chimney 90.
The desulfurization waste water generated by desulfurization in the wet desulfurization device 80 is collected in the desulfurization waste water storage tank 21 through a pipeline, treated by the concentration treatment unit 23, sprayed into the main flue 30 of the power plant through the desulfurization waste water delivery pipe 22 by the desulfurization waste water discharge pump 24 to be mixed with high-temperature flue gas, and the desulfurization waste water is evaporated by the high-temperature flue gas. However, since the total dissolved solids in the desulfurization wastewater are precipitated and accumulated in a large amount during the evaporation process and are attached to the main flue 30 of the power plant, the whole flue is blocked after long-term accumulation.
Therefore, the utility model provides a prevent that desulfurization waste water from evaporating the device that the caking blockked up in flue, as shown in figure 2. The device comprises a dosing device 10 and an auxiliary flue 301 arranged on a main flue 30 of the power plant; the auxiliary flue 301 is provided with an auxiliary flue drying tower 100; the two connecting ends of the auxiliary flue 301 and the main flue 30 of the power plant between the two connecting ends are both provided with a flashboard door or a valve for switching on and off; the bottom of the auxiliary flue drying tower 100 is provided with an ash discharge port 110.
The auxiliary flue drying tower 100 is located at the side of the main flue 30 of the power plant behind the air preheater 60, and the flue gas inlet and outlet of the auxiliary flue drying tower are connected to the main flue 30 of the power plant behind the air preheater 60 through an auxiliary flue 301; when the gate board door or valve of the auxiliary flue inlet and outlet is opened and the gate board door or valve of the main flue is closed, the high-temperature flue gas in the main flue 30 of the power plant enters the auxiliary flue drying tower 100, is mixed and evaporated with the desulfurization wastewater sprayed into the auxiliary flue drying tower 100 at the same time, then returns to the main flue 30 of the power plant through the auxiliary flue 301, and is discharged for subsequent treatment; when the gate plate door or valve of the auxiliary flue inlet and outlet is closed and the gate plate door or valve of the main flue is opened, the high-temperature flue gas is blocked from entering the auxiliary flue 301, and all the flue gas is discharged to the subsequent treatment through the main flue 30 of the power plant.
The desulfurization wastewater conveying line 20 comprises a desulfurization wastewater storage tank 21, a concentration processing unit 23 and a desulfurization wastewater discharge pump 24 which are sequentially connected through a desulfurization wastewater conveying pipeline, and a pH adjusting tank, a clarification tank and the like can be added to further process desulfurization wastewater. The desulfurization waste water from the wet desulfurization device 80 is collected in the desulfurization waste water storage tank 21, treated by the concentration treatment unit 23, sent into the spray gun at the top of the auxiliary flue drying tower 100 through the desulfurization waste water delivery pipe 22 by the desulfurization waste water outward discharge pump 24, and sprayed into the auxiliary flue drying tower 30 to be mixed with the high-temperature flue gas. The chemical adding device 10 is connected to the desulfurization waste water storage tank 21 through a first branch pipe 108, and is connected to the desulfurization waste water conveying pipeline 22 through a first branch pipe 109. Specifically, the chemical adding device 10 is connected to the desulfurization wastewater conveying pipeline 22 through a mixer 25 (static mixer) arranged on the desulfurization wastewater conveying pipeline 22, and the chemicals in the chemical adding device 10 and the desulfurization wastewater in the desulfurization wastewater conveying pipeline 22 are uniformly mixed through the mixer 25 and then are sent into the auxiliary flue drying tower 100 together to be mixed and evaporated with the high-temperature flue gas. Simultaneously, in charge device 10 still was connected to desulfurization waste water storage pool 21, be equipped with agitating unit or aeration equipment in desulfurization waste water storage pool 21 for with the medicament in charge device 10 and desulfurization waste water storage pool 21 in the desulfurization waste water misce bene.
As shown in fig. 3, the dosing device 10 includes a medicament barrel 101, a dosing line 102, a metering pump 103, a ball valve 104, and an electric cabinet 105; one end of the dosing pipeline 102 is connected with the chemical barrel 101, and the other end of the dosing pipeline is connected to the desulfurization wastewater conveying line 20; the ball valve 104 is arranged at the end part of the dosing pipeline 102 connected with the chemical barrel 101, the metering pump 103 is positioned on the dosing pipeline 102 and is in signal connection with the electric cabinet 105, and chemicals in the chemical barrel 101 are sent into the desulfurization wastewater conveying line 20 through the dosing pipeline 102 by the metering pump 103. The dosing pipeline 102 is also provided with a Y-shaped filter 106 and a back pressure valve 107, and the Y-shaped filter 106 and the back pressure valve 107 are sequentially arranged between the ball valve 104 and the metering pump 103.
Desulfurization waste water efflux pump 24 and measuring pump 103 respectively with electric cabinet 105 signal connection, through electric cabinet 105 simultaneous control desulfurization waste water efflux pump 24 with the start-stop of measuring pump 103, carry the in-process to supplementary flue drying tower 100 at desulfurization waste water, add the medicament in to desulfurization waste water through measuring pump 103 in step.
The working principle of the device for preventing desulfurization wastewater from being blocked by evaporation and agglomeration in the flue is as follows:
firstly, high-temperature flue gas generated from a power plant boiler 40 passes through a power plant main flue 30 and is sequentially treated by a denitration device 50, an air preheater 60, a dust remover 70 and a wet desulphurization device 80 and then is discharged into the atmosphere through a chimney 90.
The desulfurization waste water generated by desulfurization in the wet desulfurization device 80 is collected in the desulfurization waste water storage tank 21 through a pipeline, is treated by the concentration treatment unit 23, is sent into the auxiliary flue drying tower 100 connected with the main flue 30 of the power plant through the desulfurization waste water delivery pipe 22 by the desulfurization waste water discharge pump 24, is mixed with high-temperature flue gas, and is evaporated by the high-temperature flue gas. The main flue 30 of the power plant is provided with an auxiliary flue 301 behind the air preheater 60, and the auxiliary flue drying tower 100 is provided on the auxiliary flue 301. An auxiliary flue inlet gate 303 and an auxiliary flue outlet gate 304 are respectively arranged at two connecting ends of the auxiliary flue 301 and the main flue 30 of the power plant; the main flue 30 of the power plant, which is located between the two connecting ends, is provided with a main flue damper door 302.
Before the desulfurization wastewater is fed into the auxiliary flue drying tower 100 to be mixed with high-temperature flue gas, a medicament (such as AES fatty alcohol polyoxyethylene ether sulfate) capable of preventing the wastewater from being hardened after evaporation is added into the desulfurization wastewater through the dosing device 10. When the auxiliary flue inlet damper door 303 and the auxiliary flue outlet damper door 304 are opened and the main flue damper door 302 is closed, high-temperature flue gas in the main flue 30 of the power plant enters the auxiliary flue drying tower 100 and is mixed with desulfurization wastewater sprayed into the auxiliary flue drying tower 100 at the same time, the sulfur-containing wastewater is instantly evaporated by the high-temperature flue gas, and then returns to the main flue 30 of the power plant through the auxiliary flue 301 and is treated by the subsequent dust remover 70; when the auxiliary flue inlet damper door 303 and the auxiliary flue outlet damper door 304 are closed and the main flue damper door 302 is opened, high-temperature flue gas is blocked from entering the auxiliary flue 301, and all flue gas is discharged to subsequent treatment through the main flue 30 of the power plant. At this moment, the auxiliary flue drying tower 100 can be subjected to ash removal and maintenance operations, and accumulated ash collected in the auxiliary flue drying tower 100 is discharged from the ash discharge port 110 for centralized treatment.
In different application scenarios, the chemical adding point of the chemical adding device 10 to the desulfurization wastewater may be adjusted, for example, added to the desulfurization wastewater conveying pipe 22, directly added to the desulfurization wastewater storage tank 21, or added to both the desulfurization wastewater conveying pipe 22 and the desulfurization wastewater storage tank 21. If the additive is added to the desulfurization waste water transfer pipe 22, the chemical and the desulfurization waste water are mixed uniformly by a mixer 25 (e.g., a static mixer), and then the mixture is sprayed into the auxiliary flue drying tower 100, so that the precipitated solid can be collected by the subsequent dust collector 70.
The utility model provides a prevent that desulfurization waste water from evaporating thinking and method of device that caking blockked up in flue, the method and the way that specifically realize this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to ordinary technical personnel in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection range. All the components not specified in the present embodiment can be realized by the prior art.
Claims (9)
1. A device for preventing desulfurization waste water from evaporating, agglomerating and blocking a flue is characterized by comprising a dosing device (10) and an auxiliary flue (301) arranged on a main flue (30) of a power plant; an auxiliary flue drying tower (100) is arranged on the auxiliary flue (301); the two connecting ends of the auxiliary flue (301) and the main flue (30) of the power plant and the middle part of the main flue (30) of the power plant are provided with flashboard doors or valves for on-off; the bottom of the auxiliary flue drying tower (100) is provided with an ash discharge port (110);
medicine adding device (10) are connected to on desulfurization waste water conveying line (20) for add the medicament that prevents agglomerating in the desulfurization waste water to in desulfurization waste water conveying line (20), desulfurization waste water conveying line (20) are connected to the spray gun at auxiliary flue drying tower (100) top, are used for spouting into auxiliary flue drying tower (100) desulfurization waste water and mix the evaporation with the high temperature flue gas.
2. The device for preventing the desulfurization waste water from evaporating, caking and blocking in the flue according to claim 1, wherein the inlet of the auxiliary flue drying tower (100) is connected with the main flue after the air preheater through the auxiliary flue, and the outlet of the auxiliary flue drying tower (100) is connected with the main flue (30) of the power plant in front of the dust remover (70) through the auxiliary flue; when a damper door or a valve at an inlet and an outlet of an auxiliary flue is opened and a damper door or a valve of a main flue is closed, high-temperature flue gas in a main flue (30) of the power plant enters an auxiliary flue drying tower (100), is mixed with desulfurization wastewater sprayed into the auxiliary flue drying tower (100) at the same time for evaporation, then returns to the main flue (30) of the power plant through an auxiliary flue (301), and is discharged for subsequent treatment; when the gate plate door or valve of the inlet and outlet of the auxiliary flue is closed and the gate plate door or valve of the main flue is opened, high-temperature flue gas is prevented from entering the auxiliary flue (301), and all the flue gas is discharged to subsequent treatment through the main flue (30) of the power plant.
3. The apparatus for preventing evaporation and agglomeration of desulfurization waste water in a flue according to claim 1, wherein said desulfurization waste water transfer line (20) comprises at least a desulfurization waste water storage tank (21) and a desulfurization waste water transfer pipe (22) and a spray gun connected to an auxiliary flue drying tower (100); the chemical adding device (10) is connected to a desulfurization waste water storage tank (21) and/or a desulfurization waste water conveying pipeline (22) through pipelines.
4. The device for preventing the evaporative agglomeration and blockage of the desulfurization waste water in the flue of claim 3, wherein the dosing device (10) is connected to the desulfurization waste water conveying pipeline (22) through a mixer (25) arranged on the desulfurization waste water conveying pipeline (22), and the agglomeration-preventing agent in the dosing device (10) is uniformly mixed with the desulfurization waste water in the desulfurization waste water conveying pipeline (22) through the mixer (25) and then is sent into the auxiliary flue drying tower (100) together to be mixed and evaporated with the high-temperature flue gas.
5. The device for preventing evaporation, agglomeration and blockage of desulfurization waste water in a flue according to claim 3, wherein the desulfurization waste water conveying line (20) comprises a desulfurization waste water conveying pipeline (22), and a desulfurization waste water storage tank (21), a concentration treatment unit (23) and a desulfurization waste water discharge pump (24) which are connected in sequence through the desulfurization waste water conveying pipeline (22).
6. The device for preventing the desulfurization waste water from evaporating, caking and blocking in the flue according to claim 3, wherein the dosing device (10) is connected to a desulfurization waste water storage tank (21), and a stirring device or an aeration device is arranged in the desulfurization waste water storage tank (21) and is used for uniformly mixing the medicament in the dosing device (10) with the desulfurization waste water in the desulfurization waste water storage tank (21).
7. The device for preventing the desulfurization waste water from evaporating, caking and blocking in the flue according to claim 1, wherein the dosing device (10) comprises a medicament barrel (101), a dosing pipeline (102), a metering pump (103), a ball valve (104) and an electric cabinet (105); one end of the dosing pipeline (102) is connected with the medicament barrel (101), and the other end of the dosing pipeline is connected to the desulfurization wastewater conveying line (20); the ball valve (104) is arranged at the end part of the dosing pipeline (102) connected with the chemical barrel (101), the metering pump (103) is positioned on the dosing pipeline (102) and is in signal connection with the electric cabinet (105), and chemicals in the chemical barrel (101) are conveyed into the desulfurization wastewater conveying line (20) through the dosing pipeline (102) by the metering pump (103).
8. The device for preventing the evaporation, agglomeration and blockage of desulfurization wastewater in the flue according to claim 7, wherein a Y-shaped filter (106) and a back pressure valve (107) are further arranged on the dosing pipeline (102), and the Y-shaped filter (106) and the back pressure valve (107) are sequentially arranged between the ball valve (104) and the metering pump (103).
9. The device for preventing the evaporation, agglomeration and blockage of the desulfurization waste water in the flue according to claim 7, wherein the desulfurization waste water conveying line (20) is provided with a desulfurization waste water outward-discharging pump (24), and the desulfurization waste water outward-discharging pump (24) is in signal connection with an electric cabinet (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121426433.5U CN214880901U (en) | 2021-06-25 | 2021-06-25 | Device for preventing desulfurization waste water from evaporating, caking and blocking in flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121426433.5U CN214880901U (en) | 2021-06-25 | 2021-06-25 | Device for preventing desulfurization waste water from evaporating, caking and blocking in flue |
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| Publication Number | Publication Date |
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| CN214880901U true CN214880901U (en) | 2021-11-26 |
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| CN202121426433.5U Active CN214880901U (en) | 2021-06-25 | 2021-06-25 | Device for preventing desulfurization waste water from evaporating, caking and blocking in flue |
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| CN (1) | CN214880901U (en) |
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2021
- 2021-06-25 CN CN202121426433.5U patent/CN214880901U/en active Active
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