CN103664007A - Preparation device of lime slurry for waste incineration flue gas purification - Google Patents
Preparation device of lime slurry for waste incineration flue gas purification Download PDFInfo
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- CN103664007A CN103664007A CN201310648516.2A CN201310648516A CN103664007A CN 103664007 A CN103664007 A CN 103664007A CN 201310648516 A CN201310648516 A CN 201310648516A CN 103664007 A CN103664007 A CN 103664007A
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Abstract
The invention provides a preparation device of lime slurry for waste incineration flue gas purification, in the preparation process, the temperature detection and control are added, and at the same time, the feeding control is improved and the system accuracy is improved to prepare the lime slurry meeting concentration requirements. The preparation device includes a preparation tank and a lime bin, the preparation tank is provided with an agitator, the upper part of the preparation tank is provided with a water inlet and a lime inlet, the lower part of the preparation tank is provided with an outlet communicated to a storage tank, and the outlet is provided with a preparation tank outlet valve, and the preparation device is characterized in that: a lower outlet of the lime bin is communicated to a lime dosing screw, a frequency changer is externally connected with a feeding screw of the lime dosing screw, a controller is externally connected with frequency changer, a water inlet valve is externally connected with the controller, the water inlet valve is connected with the water inlet through a pipeline, and a water meter is arranged on an outer water pipe of the water inlet valve.
Description
Technical field
The present invention relates to the technical field of lime slurrying, be specially a kind of garbage-incineration smoke purifying lime white preparation facilities.
Background technology
In waste incinerated smoke purification system semidry process, the lime slurry preparing evenly sprays into reaction tower through the spraying gun of high speed rotating.Lime white reacts with sour gas such as HCl, SOx in hot flue gas flow, HF.The lime slurry evaporation of spraying is also cooled to approximately 150 ℃～160 ℃ by flue gas, and generate dry powdered reactant CaCl
2, CaF
2, CaSO
3and CaSO
4deng.This process of cooling also makes Dioxins, furans and heavy metal generation condense.Therefore lime white, in gas cleaning semidry process, has served as important role.But, unslaked lime is prepared lime white, it is a thermopositive reaction, existing lime white at preparation facilities by water once being filled up after calculating respectively lime weight, water weight, then sneak into lime and stir in preparation tank, now, in whipping process, it is large that too high temperature makes thermal meter detect error in dipping change, even can cause the weightlessness of weighing balance, may cause lime white change in concentration larger, affect the normal work of spraying gun.
Summary of the invention
For existing above-mentioned defect, the invention provides a kind of garbage-incineration smoke purifying lime white preparation facilities, in its preparation process, increase detection and the control of temperature, meanwhile, improve the control of feed, the precision of raising system, prepares the satisfactory lime slurry of concentration.
A kind of garbage-incineration smoke purifying lime white preparation facilities, it comprises preparation tank, lime silo, in described preparation tank, agitator is housed, the top of described preparation tank has water-in, enter lime mouth, the below of described preparation tank has outlet and is communicated to preservation tank, described outlet is provided with preparation tank outlet valve, it is characterized in that: the below outlet of described lime silo is communicated to lime metering screw, described in being connected to, described lime metering screw enters lime mouth, the external frequency transformer of pressure feeding spiral of described lime metering screw, described frequency transformer external controller, the external water intaking valve of described controller, described water intaking valve connects described water-in by pipeline, the outer water tube of described water intaking valve is provided with water meter scale, the top of described preparation tank is provided with louvre, hot channel is equipped with in described louvre position, in described hot channel, be provided with exhaust fan, described exhaust fan connects described controller, temperature-detecting device is equipped with in the bottom of described preparation tank, described temperature-detecting device is circumscribed with described controller, described preparation tank integral body is placed in LOAD CELLS.
Adopt after the present invention, it is the singularity of suspension liquid according to lime white, takes into account the control of concentration, by water inlet, enter lime and change into into water, enter lime, intake, simultaneously, in its preparation process, increase detection and the control of temperature, make preparation system adapt to the preparation of unslaked lime and white lime, simultaneously, improve the control of feed, improve the precision of system, prepare the satisfactory lime slurry of concentration.
Accompanying drawing explanation
Fig. 1 is structural representation block diagram of the present invention.
Embodiment
See Fig. 1, it comprises preparation tank, lime silo, agitator is housed in preparation tank, the top of preparation tank has water-in, enter lime mouth, the below of preparation tank has outlet and is communicated to preservation tank, it is characterized in that: the below outlet of lime silo is communicated to lime metering screw, lime metering screw is connected to into lime mouth, the external frequency transformer of pressure feeding spiral of lime metering screw, frequency transformer external controller, the external water intaking valve of controller, water intaking valve connects water-in by pipeline, the outer water tube of water intaking valve is provided with water meter scale, the top of preparation tank is provided with louvre, hot channel is equipped with in louvre position, in hot channel, be provided with exhaust fan, exhaust fan connects controller, temperature-detecting device is equipped with in the bottom of preparation tank, temperature-detecting device is circumscribed with controller, preparation tank integral body is placed in LOAD CELLS.
Its whole control process is as follows:
A, controller receive artificial default concentration value, calculate the water yield and the amount of lime that need, open water intaking valve;
B, add after a certain amount of water, start agitator;
C, open lime silo, by controller, start pressure feeding spiral that frequency transformer drives lime metering screw, start to supply with CaO simultaneously, when pressure feeding spiral starts, high-speed cruising is supplied with most required amount of lime, and then low cruise is accurately supplied with remaining required amount of lime; In preparation process, by temperature-detecting device, detect the temperature of preparation tank inside, when temperature is high, in preparation tank, add water cooling; After temperature reduces, then close water intaking valve; During excess Temperature, stop pressure feeding spiral simultaneously, start exhaust fan, accelerate heat radiation, until temperature is got back to normal value, continue charging;
D, after required amount of lime all adds, open water intaking valve, water continues to add, and monitors, until reach required lime white concentration by water meter scale;
E, agitator continue to stir, and make solution stirring even;
F, open preparation tank outlet valve, by LOAD CELLS, weigh the quantitative lime white in preparation tank is put into and preserved tank;
G, then start new batch circulation.
Claims (1)
1. a garbage-incineration smoke purifying lime white preparation facilities, it comprises preparation tank, lime silo, in described preparation tank, agitator is housed, the top of described preparation tank has water-in, enter lime mouth, the below of described preparation tank has outlet and is communicated to preservation tank, described outlet is provided with preparation tank outlet valve, it is characterized in that: the below outlet of described lime silo is communicated to lime metering screw, described in being connected to, described lime metering screw enters lime mouth, the external frequency transformer of pressure feeding spiral of described lime metering screw, described frequency transformer external controller, the external water intaking valve of described controller, described water intaking valve connects described water-in by pipeline, the outer water tube of described water intaking valve is provided with water meter scale, the top of described preparation tank is provided with louvre, hot channel is equipped with in described louvre position, in described hot channel, be provided with exhaust fan, described exhaust fan connects described controller, temperature-detecting device is equipped with in the bottom of described preparation tank, described temperature-detecting device is circumscribed with described controller, described preparation tank integral body is placed in LOAD CELLS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648516.2A CN103664007B (en) | 2013-12-06 | 2013-12-06 | Preparation device of lime slurry for waste incineration flue gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648516.2A CN103664007B (en) | 2013-12-06 | 2013-12-06 | Preparation device of lime slurry for waste incineration flue gas purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103664007A true CN103664007A (en) | 2014-03-26 |
| CN103664007B CN103664007B (en) | 2015-06-17 |
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| CN201310648516.2A Active CN103664007B (en) | 2013-12-06 | 2013-12-06 | Preparation device of lime slurry for waste incineration flue gas purification |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936306A (en) * | 2014-04-15 | 2014-07-23 | 米易锦秀机械制造有限公司 | Vertical type lime aging equipment |
| 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 |
| CN104147918A (en) * | 2014-07-31 | 2014-11-19 | 光大环保技术研究院（深圳）有限公司 | Control method and control system for public flue gas treatment equipment |
| CN105278567A (en) * | 2015-09-28 | 2016-01-27 | 光大环保技术研究院（深圳）有限公司 | Fuzzy control-based waste incineration flue gas purification control method and system |
| CN105922442A (en) * | 2016-05-12 | 2016-09-07 | 广州迪斯环保设备有限公司 | Anti-blocking lime slurry spraying device |
| CN109453643A (en) * | 2018-12-20 | 2019-03-12 | 广州迪斯环保设备有限公司 | A kind of lime slurry supply system for semi-dry desulphurization |
| CN110898650A (en) * | 2019-10-24 | 2020-03-24 | 光大环保技术装备（常州）有限公司 | Slaked lime slurry concentration on-line monitoring and regulating system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201400640Y (en) * | 2009-04-30 | 2010-02-10 | 无锡雪浪输送机械有限公司 | Lime mortar preparation system screw feeder |
| CN203625246U (en) * | 2013-12-06 | 2014-06-04 | 无锡雪浪环境科技股份有限公司 | Refuse burning fume purifying lime mortar preparation device |
-
2013
- 2013-12-06 CN CN201310648516.2A patent/CN103664007B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201400640Y (en) * | 2009-04-30 | 2010-02-10 | 无锡雪浪输送机械有限公司 | Lime mortar preparation system screw feeder |
| CN203625246U (en) * | 2013-12-06 | 2014-06-04 | 无锡雪浪环境科技股份有限公司 | Refuse burning fume purifying lime mortar preparation device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936306A (en) * | 2014-04-15 | 2014-07-23 | 米易锦秀机械制造有限公司 | Vertical type lime aging equipment |
| 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 |
| CN104147918A (en) * | 2014-07-31 | 2014-11-19 | 光大环保技术研究院（深圳）有限公司 | Control method and control system for public flue gas treatment equipment |
| CN105278567A (en) * | 2015-09-28 | 2016-01-27 | 光大环保技术研究院（深圳）有限公司 | Fuzzy control-based waste incineration flue gas purification control method and system |
| CN105922442A (en) * | 2016-05-12 | 2016-09-07 | 广州迪斯环保设备有限公司 | Anti-blocking lime slurry spraying device |
| CN109453643A (en) * | 2018-12-20 | 2019-03-12 | 广州迪斯环保设备有限公司 | A kind of lime slurry supply system for semi-dry desulphurization |
| CN110898650A (en) * | 2019-10-24 | 2020-03-24 | 光大环保技术装备（常州）有限公司 | Slaked lime slurry concentration on-line monitoring and regulating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103664007B (en) | 2015-06-17 |
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Address after: 214000 no.2020 Lihu Avenue, Binhu District, Wuxi City, Jiangsu Province Patentee after: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 214128 Shuangxin economic Park, Taihu street, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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