CN201169014Y - Preparing apparatus of lime slurry for processing refuse incineration smoke gas - Google Patents
Preparing apparatus of lime slurry for processing refuse incineration smoke gas Download PDFInfo
- Publication number
- CN201169014Y CN201169014Y CNU2008200976875U CN200820097687U CN201169014Y CN 201169014 Y CN201169014 Y CN 201169014Y CN U2008200976875 U CNU2008200976875 U CN U2008200976875U CN 200820097687 U CN200820097687 U CN 200820097687U CN 201169014 Y CN201169014 Y CN 201169014Y
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- China
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- lime
- tank
- preparation device
- lime milk
- vibratory sieve
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Abstract
The utility model provides a lime milk preparation device used for the treatment of garbage incineration flue gas. The lime milk preparation device is mainly composed of a lime storage bin, a quantification screw feeder, a preparation tank, a measuring tank, a vibrating sieve, a buffering tank and a lime milk pump; wherein, the bottom of the lime storage bin is connected with the quantification screw feeder, the quantification screw feeder is connected with the inlet valve at the top of the preparation tank, the preparation tank is connected with the measuring tank through a pipeline, the measuring tank is connected with the top end of the vibrating sieve, the outlet of the vibrating sieve is connected with the top of the buffering tank, and the buffering tank is connected with the lime milk pump. The quantification screw feeder can automatically control the lime and water entering the preparation tank, so as to enable the concentration of the prepared lime milk to be more than 15 percent. The lime milk preparation device has the advantages that the design is reasonable, the structure is simple; in addition, the lime milk preparation device is also provided with a acid cleaning system, thus the cleaning to the lime milk preparation device can be automatically performed after the working of the lime milk preparation device is stopped; not only the operation is convenient, but also the cleaning effect is good; and the service life of the equipment can be prolonged effectively.
Description
Technical field
The utility model relates to flue gas and handles the technology of preparing of using lime slurry, relates in particular to the preparation facilities of the lime slurry that is used for the flue gas of refuse burning processing.
Background technology
Along with expanding economy, the generation of domestic waste also constantly increases.The trash processing way of the present more employing in most of city mainly is sanitary landfills, During High-Temperature Composting and three kinds of ways of burn sintering energy.Because sanitary landfills and During High-Temperature Composting dual mode can produce a lot of problem of environmental pollutions, thereby more city trend adopts the mode of burn sintering energy to come domestic waste is handled.Domestic waste is disliked because of, heavy metal, HCL, HF, SO through containing a large amount of two in the flue gas that produces behind the high temperature incineration
xEtc. harmful components, so must handle the back qualified discharge.Especially contain a large amount of sour gas in the flue gas of refuse burning, need produce reaction with alkaline matter and sour gas could remove it, with HCl and SO
2Be example, the subtractive process of sour gas is as follows: (1) HCl, SO
2Diffusion from the gas phase theme to the drop surface, promptly in air film, HCl, SO
2Mass transferring in gas phase under the partial pressure poor (PA-PAi); (2) drop surface HCl, SO
2Absorption; (3) diffusion of the ion of liquid phase dissolved in liquid phase; (4) course of dissolution of alkali grain, i.e. the course of dissolution mass transport process of alkaline matter in liquid film under concentration difference; (5) neutralization reaction taking place, promptly diffuses to HCl, SO in the liquid film
2Carry out chemical reaction with the finite concentration liquid phase component; SO
2 (g)+ Ca (OH)
2+ 1/2O
2→ CaSO
4+ H
2O, 2HCl
(g)+ Ca (OH)
2→ CaCl
2+ H
2O.
At present, the processing of flue gas of refuse burning adopts " semidry method " technology that sour gas is handled usually, and semidry process need prepare a large amount of lime slurries, but there is following defective in existing lime emulsion preparation device:
1, complex structure, and can not effectively control the amount that adds lime and water in the lime slurry preparation process.
2, lime slurry is even inadequately, and granular size does not have controlled, and is after the lime slurry atomizing, insufficient with the reaction of harmful substance;
3, preparation facilities maintenance process trouble, service life is not long, cleans difficulty.
4, lime white preparation and conveying equipment are more, and lime white easily leaks, thereby causes the pollution of equipment and workplace.
The utility model content
At the prior art above shortcomings, the purpose of this utility model provides a kind of simple in structure, can control the concentration of lime slurry, and lime slurry can be fully with flue gas in the acid ingredient lime emulsion preparation device of reacting.
Realize that the utility model purpose technical scheme is: be used for the lime emulsion preparation device that flue gas of refuse burning is handled, comprise the lime bunker, also comprise quantitative screw(-type) feeder, preparation jar, measuring tank, vibratory sieve, surge tank and lime white liquid pump; Wherein the bottom of lime bunker links to each other with quantitative screw(-type) feeder, quantitatively screw(-type) feeder is connected by the inlet valve of pipeline with the preparation tank top, the preparation jar links to each other by pipeline with measuring tank, measuring tank is connected with the vibratory sieve top by pipeline, the vibratory sieve outlet is connected with the surge tank top, and surge tank links to each other with the lime white liquid pump.
Described quantitative screw(-type) feeder is by the start and stop of preparation jar weight measurement control metering device, and the flow velocity of its control lime is 7500kg/h-15000kg/h.
Compared to existing technology, the utlity model has following beneficial effect:
1, this lime emulsion preparation device is contacted successively by lime bunker, preparation jar, measuring tank, vibratory sieve, surge tank etc. and is constituted, have reasonable in design, advantages of simple structure and simple.
2, this device also is provided with pickling system, can clean this device automatically after preparation facilities quits work; Not only easy and simple to handle, and cleaning performance is better; Can effectively prolong the service life of equipment.
3, quantitatively the automatic control of screw feeder function enters the lime of preparation jar and the flow of water, thereby the concentration of the lime slurry that control prepares is greater than 15%.
4, vibratory sieve filters lime slurry, guarantees that the lime white that enters in the surge tank more can fully react with sour gas.
Description of drawings
Fig. 1 is the lime emulsion preparation device structural representation.
The specific embodiment
Specify the specific embodiment of the present utility model below in conjunction with accompanying drawing.
Embodiment: referring to accompanying drawing, be used for the lime emulsion preparation device that flue gas of refuse burning is handled, comprise lime bunker 1, quantitative screw(-type) feeder 2, preparation jar 5, measuring tank 6, vibratory sieve 7, surge tank 8 and lime white liquid pump 9; Wherein the bottom of lime bunker 1 links to each other with quantitative screw(-type) feeder 2, quantitatively screw(-type) feeder 2 is connected by the inlet valve 4 of pipeline 3 with preparation jar 5 tops, preparation jars 5 and measuring tank 6 link to each other by pipeline, measuring tank 6 is connected with vibratory sieve 7 tops by pipeline, the outlet of vibratory sieve 7 is connected with surge tank 8 tops, and surge tank 8 is sent lime slurry through lime white liquid pump 9 and output channel.Wherein, weighing instrument, level-sensing device, roof scrubber, manhole, hand hole, anti-blocking hot blast endless tube and nozzle, inspection platform, feed inlet and outlet pipeline and valve can be set on the lime bunker 1, weighing instrument, level-sensing device can be used for monitoring the amount of lime bunker sodalime, the usefulness of personnel's turnover or operation when manhole and hand hole are used for repair apparatus; On the preparation jar 5 weighing instrument and level-sensing device can be set, be used for monitoring at any time the capacity and the weight of preparation jar lime white, prevent the excess load running; Quantitatively screw(-type) feeder 2 is by the start and stop of preparation jar 2 weight measurements control metering device, and the flow velocity of its control lime is 7500kg/h-15000kg/h, to guarantee (as 1: 4 the weight ratio batching) mixing according to a certain percentage of lime and water; Surge tank 8 can dispose level-sensing device, is used to monitor the amount of surge tank sodalime slurry; The net of vibratory sieve 7 is 3mm, 4mm, 5mm and 6mm directly, is used to control the lime white particle grain size.
In addition, between preparation jar 5, measuring tank 6, vibratory sieve 7, surge tank 8 and lime white liquid pump 9, also be provided with the pickling system that is attached thereto, pickling system comprises hydrochloric acid conservation tank 10, hydrochloric acid batch meter 11, measuring pump 12 and pipeline 13, and the hydrochloric acid in the hydrochloric acid conservation tank 10 is delivered to hydrochloric acid batch meter 11 by pipeline.In the maintenance process, by measuring pump 12 and pipeline 13 hydrochloric acid of hydrochloric acid batch meter 11 is sent into preparation jar 5, measuring tank 6, vibratory sieve 7, surge tank 8 and lime slurry pump 11 respectively again and clean, solve the long-time problem of using the lime slurry precipitation that causes of pulping equipment.
Described quantitative screw(-type) feeder 2, vibratory sieve 7, lime white liquid pump 9, measuring pump 12 and pickling system etc. all adopt this area conventional equipment.
Technological process of the present utility model is as follows: calcium lime powder is sent into the quick lime bunker by the charging aperture of lime bunker, again by quantitative screw(-type) feeder with quick lime and water according to a certain percentage (as 1: 4 weight ratio) send and join preparation jar, the mixer of preparation jar stirs lime and water, makes the lime slurry concentration of making be not less than 15%; And then the slurries that make are delivered to measuring tank by pipeline, deliver to vibratory sieve after in measuring tank, measuring and stirring once more; By after the shaker vibration with satisfactory slurries by pipeline to surge tank, undesirable lime particle is stayed on the vibratory sieve, and regularly vibratory sieve is cleared up; At last, the lime white in the surge tank is sent through lime slurry pump and pipeline.The utility model is mainly used in the supporting use of flue gas of refuse burning treating apparatus.
This covering device with the supporting long-time use of garbage-incineration smoke purifying treating apparatus in, can produce the situation of lime slurry precipitation, thereby need stop emulsion preparation device and maintenance.In the maintenance process, the watery hydrochloric acid that starts in the pickling system cleans (generation neutralization reaction) to the lime white in preparation jar, measuring tank, vibratory sieve, surge tank, lime slurry pump and the connecting pipe, and then, reach optimum to guarantee cleaning performance with the clear water cleaning.The consumption of watery hydrochloric acid can be controlled by hydrochloric acid batch meter and measuring pump.In cleaning process, can clean preparation jar, measuring tank, vibratory sieve, surge tank and lime slurry pump at the same time or separately.
The utility model can design makes the lime emulsion preparation device that the flue gas of refuse burning that is applicable to 300 tons, 600 tonnes or 1200 tons is handled, according to the difference configuration of output, adopt one or more lime bunker, screw(-type) feeder, lime slurry pump, a cover or two cover pickling systems to realize.
Claims (5)
1, is used for the lime emulsion preparation device that flue gas of refuse burning is handled, comprises lime bunker (1), it is characterized in that also comprising quantitative screw(-type) feeder (2), preparation jar (5), measuring tank (6), vibratory sieve (7), surge tank (8) and lime white liquid pump (9); Wherein the bottom of lime bunker (1) links to each other with quantitative screw(-type) feeder (2), quantitatively screw(-type) feeder (2) is connected by the inlet valve (4) of pipeline (3) with preparation jar (5) top, preparation jar (5) links to each other by pipeline with measuring tank (6), measuring tank (6) is connected with vibratory sieve (7) top by pipeline, the outlet of vibratory sieve (7) is connected with surge tank (8) top, and surge tank (8) is sent lime slurry through lime white liquid pump (9).
2, lime emulsion preparation device according to claim 1 is characterized in that also comprising pickling system, and pickling system is in series by hydrochloric acid conservation tank (10), hydrochloric acid batch meter (11), measuring pump (12) and pipeline (13).
3, lime emulsion preparation device according to claim 2 is characterized in that described pickling system links to each other respectively with lime slurry pump (11) with preparation jar (5), measuring tank (6), vibratory sieve (7), surge tank (8).
4, lime emulsion preparation device according to claim 1 is characterized in that the flow velocity of described quantitative screw(-type) feeder (2) control lime is 7500kg/h-15000kg/h.
5, lime emulsion preparation device according to claim 1 is characterized in that the net of described vibratory sieve (7) directly is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200976875U CN201169014Y (en) | 2008-02-22 | 2008-02-22 | Preparing apparatus of lime slurry for processing refuse incineration smoke gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200976875U CN201169014Y (en) | 2008-02-22 | 2008-02-22 | Preparing apparatus of lime slurry for processing refuse incineration smoke gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201169014Y true CN201169014Y (en) | 2008-12-24 |
Family
ID=40208067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200976875U Expired - Fee Related CN201169014Y (en) | 2008-02-22 | 2008-02-22 | Preparing apparatus of lime slurry for processing refuse incineration smoke gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201169014Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119002A (en) * | 2014-07-04 | 2014-10-29 | 光大环保技术装备（常州）有限公司 | Preparation method and preparation device for lime slurry |
-
2008
- 2008-02-22 CN CNU2008200976875U patent/CN201169014Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119002A (en) * | 2014-07-04 | 2014-10-29 | 光大环保技术装备（常州）有限公司 | Preparation method and preparation device for lime slurry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20160222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |