CN204454813U - The treatment unit of denitrating catalyst cleaning and regeneration waste water and dregs - Google Patents
The treatment unit of denitrating catalyst cleaning and regeneration waste water and dregs Download PDFInfo
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- CN204454813U CN204454813U CN201520008536.8U CN201520008536U CN204454813U CN 204454813 U CN204454813 U CN 204454813U CN 201520008536 U CN201520008536 U CN 201520008536U CN 204454813 U CN204454813 U CN 204454813U
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Abstract
The utility model relates to a kind for the treatment of unit of denitrating catalyst cleaning and regeneration waste water and dregs.Also do not have a kind of energy utilization rate high at present, the treatment unit of the denitrating catalyst cleaning and regeneration waste water and dregs of denitrating catalyst cleaning and regeneration waste water recycling can be realized.Feature of the present utility model is: comprise waste water buffer-precipitation pond, soda acid dosing tank, ultrasonic wave atomizing nozzle, waste-water vortex device, liquid delivery pump, fly-ash separator, cleaning and regeneration waste water transfer lime, and bottom ash conveying pipe; Cleaning and regeneration waste water transfer lime and bottom ash conveying Guan Jun are connected on waste water buffer-precipitation pond, soda acid dosing tank is connected on waste water buffer-precipitation pond by soda acid supply-pipe, waste water buffer-precipitation pond is connected on waste-water vortex device by supernatant liquor transfer lime, the bottom of waste-water vortex device is connected on waste water buffer-precipitation pond by underflow return line, and ultrasonic wave atomizing nozzle aims at the inlet flue duct of fly-ash separator.The utility model energy utilization rate is high, can realize denitrating catalyst cleaning and regeneration waste water recycling.
Description
Technical field
The utility model relates to a kind for the treatment of unit of waste water and dregs, especially relates to a kind for the treatment of unit of denitrating catalyst cleaning and regeneration waste water and dregs, belongs to air pollution control technique and technical field of water pollution control.
Background technology
Along with the increasingly stringent of national environmental protection policy, domestic in-service fired power generating unit and newly-built fired power generating unit all at equipment or plan equipment denitrification apparatus, ensure NO in flue gas
xqualified discharge.The denitrating system that SCR (SCR) denitrating technique is efficient because of it, reliable, stable performance is widely used in coal-burning power plant, one of core technology of this technique must use denitrating catalyst exactly.
Activity decrease problem is there is in denitrating catalyst in During Process of Long-term Operation, the reason of catalyst deactivation is caused to have a lot, mainly comprise physics inactivation and chemical inactivation, physics inactivation mainly refers to catalyst surface or duct blocking, surperficial mechanical wear etc., chemical inactivation mainly refer to catalyst active component poisoning, loss and aging.These reasons cause catalyzer to be only 2-3 work-ing life, and the production cost of catalyzer is high, make the running stores that denitrating catalyst becomes expensive, and waste denitration catalyst lists hazardous solid waste register in, mishandlingly will cause high risks to human body and environment if process.
For above-mentioned reason, domestic and international scientific worker has carried out a large amount of research work, develops a series of denitrating catalyst regeneration techniques, and these technology parts have started application, and part is also in conceptual phase.If publication date is 2013-01-09, publication number is in the Chinese patent of CN102861621A, discloses a kind of packaged type SCR denitration cleaning regenerating unit and cleaning and regeneration method; And for example publication date is 2014-10-01, and publication number is in the Chinese patent of CN104069900A, discloses a kind of purging method for waste denitration catalyst regeneration and device; For another example publication date is 2014-10-08, and publication number is in the Chinese patent of CN203862254U, discloses a kind of SCR denitration cleaning regenerating unit etc.; But, make a general survey of all catalyst regeneration techniques, all only how catalyzer is regenerated and be studied, and how the waste water that catalyst regeneration process produces is processed have no elaboration, ignore the process problem of catalyst regeneration waste water.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, design is unique, easy to use, energy utilization rate is high, can realize the treatment unit of the denitrating catalyst cleaning and regeneration waste water and dregs of denitrating catalyst cleaning and regeneration waste water recycling.
The technical scheme in the invention for solving the above technical problem is: the constructional feature of the treatment unit of this denitrating catalyst cleaning and regeneration waste water and dregs is: comprise the waste water buffer-precipitation pond for the of short duration storage of waste water and solid-liquor separation, for adding acid or alkali to regulate the soda acid dosing tank of waste water ph in waste water buffer-precipitation pond, for waste water being atomized and spraying the ultrasonic wave atomizing nozzle of droplet, for the waste-water vortex device of solid-liquid separation, for the supernatant liquor in waste water buffer-precipitation pond being transported to a liquid delivery pump in waste-water vortex device, for the overflow filtrate in waste-water vortex device being transported to No. two liquid delivery pumps in ultrasonic wave atomizing nozzle, droplet vaporization ultrasonic wave atomizing nozzle sprayed into for utilizing flue gas heat, and remove the fly-ash separator of droplet impurities, soda acid supply-pipe, supernatant liquor transfer lime, overflow filtrate transfer lime, underflow return line, cleaning and regeneration waste water transfer lime, and bottom ash conveying pipe, described cleaning and regeneration waste water transfer lime and bottom ash conveying Guan Jun are connected on waste water buffer-precipitation pond, described soda acid dosing tank is connected on waste water buffer-precipitation pond by soda acid supply-pipe, described waste water buffer-precipitation pond is connected on waste-water vortex device by supernatant liquor transfer lime, a described liquid delivery pump is arranged on supernatant liquor transfer lime, the bottom of described waste-water vortex device is connected on waste water buffer-precipitation pond by underflow return line, the overflow port of this waste-water vortex device is connected on ultrasonic wave atomizing nozzle by overflow filtrate transfer lime, described No. two liquid delivery pumps are arranged on overflow filtrate transfer lime, described ultrasonic wave atomizing nozzle aims at the inlet flue duct of fly-ash separator.
As preferably, treatment unit described in the utility model is stationary structure or integrated mobile structure.
The utility model compared with prior art, has the following advantages and effect: the process problem that 1, can solve denitrating catalyst cleaning and regeneration waste water and dregs as a kind of general method, and suitability is strong, has promotional value; 2, technology maturation, easy and simple to handle, cost is low, integrated equipment; 3, technique environmental protection, energy-saving and cost-reducing, adopt fume afterheat that droplet is vaporized into water vapor, make the impurity contained in droplet be directly exposed in fly-ash separator, adopt the material outside fly-ash separator removing water vapor, design is unique, ingenious, and efficiency of dust collection is high; 4, waste water recycling is realized, saving water resource.
Accompanying drawing explanation
Fig. 1 is the structural representation of the treatment unit of denitrating catalyst cleaning and regeneration waste water and dregs in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment.
See Fig. 1, in the present embodiment, the treatment unit of denitrating catalyst cleaning and regeneration waste water and dregs comprises the waste water buffer-precipitation pond 1 for the of short duration storage of waste water and solid-liquor separation, for adding acid or alkali to regulate the soda acid dosing tank 2 of waste water ph in waste water buffer-precipitation pond 1, for waste water being atomized and spraying the ultrasonic wave atomizing nozzle 3 of droplet, for the waste-water vortex device 4 of solid-liquid separation, for the supernatant liquor in waste water buffer-precipitation pond 1 being transported to a liquid delivery pump 5 in waste-water vortex device 4, for the overflow filtrate in waste-water vortex device 4 being transported to No. two liquid delivery pumps 6 in ultrasonic wave atomizing nozzle 3, droplet vaporization ultrasonic wave atomizing nozzle 3 sprayed into for utilizing flue gas heat, and remove the fly-ash separator 7 of droplet impurities, soda acid supply-pipe 8, supernatant liquor transfer lime 9, overflow filtrate transfer lime 10, underflow return line 11, cleaning and regeneration waste water transfer lime 12, and bottom ash conveying pipe 13.
Cleaning and regeneration waste water transfer lime 12 in the present embodiment and bottom ash conveying pipe 13 are all connected on waste water buffer-precipitation pond 1, and the waste water and dregs that denitrating catalyst cleaning regenerating unit produces is transported in waste water buffer-precipitation pond 1 by cleaning and regeneration waste water transfer lime 12.Soda acid dosing tank 2 in the present embodiment is connected on waste water buffer-precipitation pond 1 by soda acid supply-pipe 8, fills bronsted lowry acids and bases bronsted lowry in soda acid dosing tank 2, for regulating the pH value of liquid in waste water buffer-precipitation pond 1.
Waste water buffer-precipitation pond 1 in the present embodiment is connected on waste-water vortex device 4 by supernatant liquor transfer lime 9, a liquid delivery pump 5 is arranged on supernatant liquor transfer lime 9, the supernatant liquor in waste water buffer-precipitation pond 1 can be transported in waste-water vortex device 4 by a liquid delivery pump 5 and supernatant liquor transfer lime 9.
In the present embodiment, the bottom of waste-water vortex device 4 is connected on waste water buffer-precipitation pond 1 by underflow return line 11, make the underflow in waste-water vortex device 4 can be transported in waste water buffer-precipitation pond 1 by underflow return line 11, the overflow port of this waste-water vortex device 4 is connected on ultrasonic wave atomizing nozzle 3 by overflow filtrate transfer lime 10, No. two liquid delivery pumps 6 are arranged on overflow filtrate transfer lime 10, and the overflow filtrate in waste-water vortex device 4 can be transported in ultrasonic wave atomizing nozzle 3 by overflow filtrate transfer lime 10.Ultrasonic wave atomizing nozzle 3 in the present embodiment aims at the inlet flue duct 71 of fly-ash separator 7, overflow filtrate can be atomized into droplet, and be sprayed into by droplet in the inlet flue duct 71 of fly-ash separator 7 by ultrasonic wave atomizing nozzle 3.
The treatment process of the denitrating catalyst cleaning and regeneration waste water and dregs in the present embodiment comprises the steps
(1) denitrating catalyst cleaning and regeneration waste water is transported in waste water buffer-precipitation pond 1 by cleaning and regeneration waste water transfer lime 12.Denitrating catalyst cleaning and regeneration waste water be generally before catalyst regeneration in Cleaning Wastewater, regenerated liquid waste water and collaborative cleaning and regeneration waste water one or more.
(2) according to the pH value situation of denitrating catalyst cleaning and regeneration waste water in waste water buffer-precipitation pond 1, determine the amount adding acid or alkali, acid or alkali are provided by soda acid dosing tank 2, and the pH value of denitrating catalyst cleaning and regeneration waste water is adjusted to 6.5-7.5 the most at last, and this pH value is preferably adjusted to about 7.
(3) the denitrating catalyst cleaning and regeneration waste water in waste water buffer-precipitation pond 1 is staticly settled, denitrating catalyst cleaning and regeneration waste water is made to be divided into supernatant liquor and end slag, supernatant liquor is discharged from the water port in waste water buffer-precipitation pond 1, and be transported in waste-water vortex device 4 by supernatant liquor transfer lime 9, end slag is discharged from the slag-drip opening in waste water buffer-precipitation pond 1, and is transported to coal cinder yard by bottom ash conveying pipe 13.
(4) waste-water vortex device 4 pairs of supernatant liquors carry out solid-liquid separation, supernatant liquor is made to be divided into overflow filtrate and underflow, the grain diameter suspended in overflow filtrate is less than 5um, solid content is less than 0.2%, overflow filtrate is delivered to ultrasonic wave atomizing nozzle 3 by overflow filtrate transfer lime 10, and underflow is delivered to waste water buffer-precipitation pond 1 by underflow return line 11.
(5) overflow filtrate is atomized into the droplet of below 10um by ultrasonic wave atomizing nozzle 3, and is sprayed into by droplet in the inlet flue duct 71 of fly-ash separator 7.
(6) fly-ash separator 7 utilizes flue gas heat that droplet is vaporized into water vapour, and removes impurity contained in droplet, and the water vapour after purification is discharged by fly-ash separator 7, thus completes treating processes.Impurity generally includes inorganic salt and dust.
The waste water and dregs that the treatment unit of the denitrating catalyst cleaning and regeneration waste water and dregs in the present embodiment discharges for the treatment of denitrating catalyst cleaning regenerating unit, denitrating catalyst cleaning regenerating unit comprises and all returns the catalyst wash regenerating unit such as factory's formula, movable type, on the spot formula both at home and abroad, denitrating catalyst cleaning and regeneration waste water refers to Cleaning Wastewater, regenerated liquid waste water or collaborative cleaning and regeneration waste water before catalyst regeneration, and denitrating catalyst cleaning and regeneration waste residue refers to the waste residue produced in denitrating catalyst cleaning and regeneration process; The treatment unit of denitrating catalyst cleaning and regeneration waste water can be fixed, also can be integrated mobile.
Embodiment 2.
See Fig. 1, the treatment unit of the denitrating catalyst cleaning and regeneration waste water and dregs of the present embodiment is by waste water buffer-precipitation pond 1, soda acid dosing tank 2, ultrasonic wave atomizing nozzle 3, waste-water vortex device 4, a liquid delivery pump 5, No. two liquid delivery pumps 6, fly-ash separator 7, soda acid supply-pipe 8, supernatant liquor transfer lime 9, overflow filtrate transfer lime 10, underflow return line 11, cleaning and regeneration waste water transfer lime 12 and bottom ash conveying pipe 13 form, identical with in embodiment 1 of annexation between component, treatment unit in the present embodiment can be fabricated to integrated mobile device, integrated mobile device can be carried to denitrating catalyst cleaning and regeneration project scene by the mode of water transport or land transportation, carry out on-the-spot wastewater treatment, time saving and energy saving.
The treatment process specific implementation process of denitrating catalyst cleaning and regeneration waste water and dregs is: collect the denitrating catalyst cleaning and regeneration waste water come and enter waste water buffer-precipitation pond 1, then determine to add acid or alkali from soda acid dosing tank 2 according to waste water ph, treat that waste water ph is adjusted to about 7, staticly settle, end slag is discharged bottom waste water buffer-precipitation pond 1, be delivered to coal cinder yard, supernatant liquor delivers to waste-water vortex device 4 by a liquid delivery pump 5, after waste-water vortex device 4 solid-liquid separation, underflow is back to waste water buffer-precipitation pond 1, overflow is delivered to ultrasonic wave atomizing nozzle 3 by No. two liquid delivery pumps 6, ultrasonic wave atomizing nozzle 3 sprays into the inlet flue duct 71 of fly-ash separator 7 after waste water is atomized into fine mist, fine mist after atomization becomes dry under the evaporation of heat smoke, solid particulate and inorganic salt are removed by fly-ash separator 7, waste water enters next link as water vapor.
In addition, it should be noted that, the specific embodiment described in this specification sheets, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this specification sheets is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (2)
1. a treatment unit for denitrating catalyst cleaning and regeneration waste water and dregs, is characterized in that: comprise waste water buffer-precipitation pond, soda acid dosing tank, ultrasonic wave atomizing nozzle, waste-water vortex device, a liquid delivery pump, No. two liquid delivery pumps, fly-ash separator, soda acid supply-pipe, supernatant liquor transfer lime, overflow filtrate transfer lime, underflow return line, cleaning and regeneration waste water transfer lime and bottom ash conveying pipe, described cleaning and regeneration waste water transfer lime and bottom ash conveying Guan Jun are connected on waste water buffer-precipitation pond, described soda acid dosing tank is connected on waste water buffer-precipitation pond by soda acid supply-pipe, described waste water buffer-precipitation pond is connected on waste-water vortex device by supernatant liquor transfer lime, a described liquid delivery pump is arranged on supernatant liquor transfer lime, the bottom of described waste-water vortex device is connected on waste water buffer-precipitation pond by underflow return line, the overflow port of this waste-water vortex device is connected on ultrasonic wave atomizing nozzle by overflow filtrate transfer lime, described No. two liquid delivery pumps are arranged on overflow filtrate transfer lime, and described ultrasonic wave atomizing nozzle aims at the inlet flue duct of fly-ash separator.
2. the treatment unit of denitrating catalyst cleaning and regeneration waste water and dregs according to claim 1, is characterized in that: described treatment unit is stationary structure or integrated mobile structure.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647544A (en) * | 2019-01-03 | 2019-04-19 | 飞潮（无锡）过滤技术有限公司 | A kind of technique of the composite regenerated waste and old copper bismuth catalyst of recycling of wet-dry change |
| CN111285548A (en) * | 2020-03-06 | 2020-06-16 | 南京创元环保科技工程有限公司 | Sewage treatment equipment and using method thereof |
| CN113941373A (en) * | 2021-10-28 | 2022-01-18 | 盐城工学院 | Ceramic filter tube lays denitration catalyst and soaks structure |
-
2015
- 2015-01-07 CN CN201520008536.8U patent/CN204454813U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647544A (en) * | 2019-01-03 | 2019-04-19 | 飞潮（无锡）过滤技术有限公司 | A kind of technique of the composite regenerated waste and old copper bismuth catalyst of recycling of wet-dry change |
| CN109647544B (en) * | 2019-01-03 | 2021-06-11 | 飞潮（无锡）过滤技术有限公司 | Process for recovering waste copper bismuth catalyst by dry-wet composite regeneration |
| CN111285548A (en) * | 2020-03-06 | 2020-06-16 | 南京创元环保科技工程有限公司 | Sewage treatment equipment and using method thereof |
| CN113941373A (en) * | 2021-10-28 | 2022-01-18 | 盐城工学院 | Ceramic filter tube lays denitration catalyst and soaks structure |
| CN113941373B (en) * | 2021-10-28 | 2023-02-28 | 盐城工学院 | Ceramic filter tube lays denitration catalyst and soaks structure |
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Address after: Hangzhou City, Zhejiang Province, 310030 Xihu District science and Technology Park of West Lake Park Road, No. 10 Patentee after: Huadian Power Science Research Institute Co., Ltd. Address before: Hangzhou City, Zhejiang Province, 310030 Xihu District science and Technology Park of West Lake Park Road, No. 10 Patentee before: China Huadian Electric Research Institute |