CN204454776U - Incineration of refuse flyash water lotion goes hardness to fall pH value device - Google Patents
Incineration of refuse flyash water lotion goes hardness to fall pH value device Download PDFInfo
- Publication number
- CN204454776U CN204454776U CN201520002545.6U CN201520002545U CN204454776U CN 204454776 U CN204454776 U CN 204454776U CN 201520002545 U CN201520002545 U CN 201520002545U CN 204454776 U CN204454776 U CN 204454776U
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- China
- Prior art keywords
- bubbling reactor
- incineration
- water lotion
- whizzer
- entrance
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Abstract
The utility model discloses a kind of incineration of refuse flyash water lotion goes hardness to fall pH value device, comprise stirred pot, whizzer, bubbling reactor, described stirred pot is provided with incineration of refuse flyash water lotion entrance and alkali liquor inlet, its outlet is connected with described whizzer entrance, the liquid exit of described whizzer is communicated with described bubbling reactor upper end mouth spray, is provided with atmospheric carbon dioxide entrance bottom described bubbling reactor.A large amount of CO that the utility model utilizes cement kiln end to produce
2carry out falling hardness and pH value, decrease carbon emission, reduce cost.By setting the value of pH, system can regulate CO automatically
2amount, control accuracy is high, stable.
Description
Technical field
The utility model relates to incineration of refuse flyash processing technology field, and especially a kind of incineration of refuse flyash water lotion goes hardness to fall pH value device.
Background technology
Along with social development progress, people manufacture and produce the rubbish of flood tide, and national industrial refuse year accumulation volume of cargo in storage has reached 6,000,000,000 tons, and wherein Hazardous wastes accounts for 5%, and domestic waste is 1.46 hundred million tons.In the mode that these rubbish are processed, there is employing burning disposal, garbage bulk is made to reduce 50% ~ 95%, but both can burn callable resource in rubbish in this process, also cause discharging toxic gas, as the mercuryvapour etc. in Dioxins, battery, and produce poisonous and harmful slag and dust.The flying ash produced in the process of burning away the refuse, its output is huge, and belongs to Hazardous wastes, needs special processing.
Have at present and adopt cement kiln treating refuse flying ash, this processing mode thoroughly can dispose flying dust, can not bring secondary pollution, and can turn waste into wealth, the cement that the quality of production is qualified.But due to the chloride content more than 10% in flying dust, the problems such as cement kiln generation ring formation putty can be made, therefore must the method for washing be adopted in advance except the chlorine in flying dust.
Moreover due to the concentration of heavy metal contained in flying dust water lotion and salt all higher, therefore water lotion can not directly discharge, and needs water lotion to evaporate, and makes the water in water lotion become distilled water and is used, and washing the salt obtained can carry out industrial utilization.Therefore, water lotion will enter vapo(u)rization system, needs to reduce calcium ions and magnesium ions concentration and pH value in water lotion, ensures that fouling and putty do not occur vapo(u)rization system.
Therefore, need to research and develop a kind of effective ways and the related device that can reduce hardness in flying dust water lotion and pH value, to reach the requirement entering vapo(u)rization system.
Utility model content
The utility model is for the deficiencies in the prior art, and propose a kind of incineration of refuse flyash water lotion and go hardness to fall pH value device, structure is ingenious, easy to operate.
In order to realize above-mentioned utility model object, the utility model provides following technical scheme: a kind of incineration of refuse flyash water lotion goes hardness to fall pH value device, comprise stirred pot, whizzer, bubbling reactor, described stirred pot is provided with incineration of refuse flyash water lotion entrance and alkali liquor inlet, its outlet is connected with described whizzer entrance, the liquid exit of described whizzer is communicated with described bubbling reactor upper end mouth spray, is provided with atmospheric carbon dioxide entrance bottom described bubbling reactor.
Preferably, also comprise cement kiln carbonic acid gas outlet passageway, this outlet passageway is communicated with bottom described bubbling reactor.
Preferably, the passage be communicated with described bubbling reactor at this outlet passageway is provided with motor-driven control valve; The liquid outlet conduit of described bubbling reactor is provided with online pH meter; This device also comprises PID controller, and described PID controller is connected with described motor-driven control valve and described online pH meter.
Preferably, the connecting pipe between described whizzer and described bubbling reactor is provided with buffering stirred pot.
Preferably, the connecting pipe of described buffering stirred pot and described bubbling reactor is provided with wash-down water bypass.
Compared with prior art, the utility model has the following advantages: a large amount of CO utilizing cement kiln end to produce
2carry out falling hardness and pH value, decrease carbon emission, reduce cost.By setting the value of pH, system can regulate CO automatically
2amount, control accuracy is high, stable.
Accompanying drawing explanation
Fig. 1 is that the utility model incineration of refuse flyash water lotion goes hardness to fall the structural representation of pH value device.
Embodiment
Be described in detail the utility model below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.
A kind of incineration of refuse flyash water lotion as shown in Figure 1 goes hardness to fall pH value device, the incineration of refuse flyash water lotion of high rigidity high ph-values, inputs stirred pot 1 by water lotion 11 entrance, and liquid caustic soda tank 2 inputs stirred pot 1 through dosing pump 21 by adding alkali mouth 12 simultaneously; Stirred pot 1 outlet is communicated with whizzer 3 entrance, the mud cake obtained goes mud cake treatment system through solid outlet 31, isolated liquid sends into buffering stirred pot 4 through liquid exit 32, be communicated with the overhead-liquid entrance 51 of bubbling reactor 5 through pump 41, magnetic flow meter 42 again, the gas inlet 52 close to bottom of bubbling reactor 5, be be communicated with cement kiln carbonic acid gas output channel 6, this connecting pipe flow to according to carbonic acid gas and is provided with relief valve 61, motor-driven control valve 62, spinner-type flowmeter 63 successively; The outlet 53 of this bubbling reactor 5 upper gas is emptying through spinner-type flowmeter, lower liquid outlet 54 pipeline is located at line pH meter 7, sends into follow-up water treatment system; Wherein bubbling reactor 5 side is arranged and the anti-siphonage pipe 55 be communicated with bottom bubbling reactor 5 and upflow tube 56, and upflow tube 56 upper end is communicated with anti-siphonage pipe 55, lower end and liquid exit 54 pipeline communication.
In said apparatus, adopt PID to control 8 and regulate and control motor-driven control valve 62 and online pH meter 7.Be convenient to rinse bubbling reactor 5 simultaneously, between pump 41 and magnetic flow meter 42, be provided with wash-down water bypass 43.
A kind of incineration of refuse flyash water lotion goes hardness to fall pH value method, comprises following process:
1, flying dust water lotion and NaOH solution stir and centrifugal, obtain Ca (OH)
2saturated solution, thus eliminate most of calcium ions and magnesium ions in water lotion, obtain the water lotion that hardness is 1000mg/L, pH is about 13.
2, water lotion enters bubbling reactor 5 after isolation of purified, meanwhile, passes into CO from bottom
2, this CO
2produced by cement kiln, make the CO passed into
2continue to react to generate with water lotion and precipitate, be that hardness reaches below 50mg/L, pH drops to 8, CO
2intake automatically regulated by controlling electrically operated valve after detection reaction after washing liquid pH value by Controlling System.
Make the water lotion after processing to carry out subsequent disposal, meet the requirement of vapo(u)rization system.
Because feed liquor is not stablize very much, by liquid exit 54 on bubbling reactor 5 and upflow tube 56 combine regulation water flow, make liquid level in reactor can keep stable.
The utility model device can reduce hardness in flying dust water lotion and pH value, reaches the requirement entering vapo(u)rization system.Secondly, the utility model make use of a large amount of CO that cement kiln end produces
2carry out falling hardness and pH value, decrease carbon emission, reduce cost.Simultaneously by the value of setting pH, system can regulate CO automatically
2amount, control accuracy is high, stable.
The utility model adopts the mode of bubble absorption, makes CO
2assimilated efficiency very high, CO
2substantially can not again discharge; Whole device structure is simple, runs more stable.
Compared with directly falling hardness with sodium carbonate, the utility model treatment process passes through NaOH+CO
2combine and fall stiffening effect better, NaOH is liquid, and reaction is fast, the good control of amount, meanwhile, and CO
2pH value can be reduced.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an incineration of refuse flyash water lotion goes hardness to fall pH value device, it is characterized in that: comprise stirred pot, whizzer, bubbling reactor, described stirred pot is provided with incineration of refuse flyash water lotion entrance and alkali liquor inlet, its outlet is connected with described whizzer entrance, the liquid exit of described whizzer is communicated with described bubbling reactor upper end mouth spray, is provided with atmospheric carbon dioxide entrance bottom described bubbling reactor.
2. device as claimed in claim 1, it is characterized in that: also comprise cement kiln carbonic acid gas outlet passageway, this outlet passageway is communicated with bottom described bubbling reactor.
3. device as claimed in claim 2, is characterized in that: on the passage that this outlet passageway is communicated with described bubbling reactor, be provided with motor-driven control valve; The liquid outlet conduit of described bubbling reactor is provided with online pH meter; This device also comprises PID controller, and described PID controller is connected with described motor-driven control valve and described online pH meter.
4. device as claimed in claim 1, is characterized in that: the connecting pipe between described whizzer and described bubbling reactor is provided with buffering stirred pot.
5. device as claimed in claim 4, is characterized in that: the connecting pipe of described buffering stirred pot and described bubbling reactor is provided with wash-down water bypass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002545.6U CN204454776U (en) | 2015-01-05 | 2015-01-05 | Incineration of refuse flyash water lotion goes hardness to fall pH value device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002545.6U CN204454776U (en) | 2015-01-05 | 2015-01-05 | Incineration of refuse flyash water lotion goes hardness to fall pH value device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204454776U true CN204454776U (en) | 2015-07-08 |
Family
ID=53661689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520002545.6U Withdrawn - After Issue CN204454776U (en) | 2015-01-05 | 2015-01-05 | Incineration of refuse flyash water lotion goes hardness to fall pH value device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204454776U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529011A (en) * | 2015-01-05 | 2015-04-22 | 北京建筑材料科学研究总院有限公司 | Device and method for reducing hardness and pH value of waste incineration fly ash washing liquid |
| CN111359306A (en) * | 2020-03-13 | 2020-07-03 | 杭州科源节能技术有限公司 | Filter system for washing fly ash and filter method thereof |
| CN117776652A (en) * | 2024-02-27 | 2024-03-29 | 吉奥固化(上海)新材料有限公司 | Cementing composition and cementing material |
-
2015
- 2015-01-05 CN CN201520002545.6U patent/CN204454776U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529011A (en) * | 2015-01-05 | 2015-04-22 | 北京建筑材料科学研究总院有限公司 | Device and method for reducing hardness and pH value of waste incineration fly ash washing liquid |
| CN111359306A (en) * | 2020-03-13 | 2020-07-03 | 杭州科源节能技术有限公司 | Filter system for washing fly ash and filter method thereof |
| CN117776652A (en) * | 2024-02-27 | 2024-03-29 | 吉奥固化(上海)新材料有限公司 | Cementing composition and cementing material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |