CN202212111U - Denitration system reducing agent urea solution preparing device - Google Patents
Denitration system reducing agent urea solution preparing device Download PDFInfo
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- CN202212111U CN202212111U CN2011203355892U CN201120335589U CN202212111U CN 202212111 U CN202212111 U CN 202212111U CN 2011203355892 U CN2011203355892 U CN 2011203355892U CN 201120335589 U CN201120335589 U CN 201120335589U CN 202212111 U CN202212111 U CN 202212111U
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- urea
- dissolving tank
- valve
- reducing agent
- basin
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Abstract
The utility model discloses a denitration system reducing agent urea solution preparing device comprising a urea hopper, a feed valve, a pneumatic transmission device, a cyclone gas-solid separating device, a dissolving tank, a dissolving tank inlet valve, a discharging valve, a stirring machine, a delivery pump, a storing tank, liquid level meters and a controller. An inlet of the feed valve is connected with the urea hopper, and an outlet of the feed vale is a feed inlet of the pneumatic transmission device; an output port of the pneumatic transmission device is connected with the cyclone gas-solid separating device, an exhaust funnel is arranged at the upper end of the cyclone gas-solid separating device, and a feeding tube at the lower end of the cyclone gas-solid separating device is communicated with the dissolving tank; the stirring machine is arranged in the dissolving tank; an inlet of the dissolving tank inlet valve is a softened water receiving port, and an outlet of the dissolving tank inlet valve is communicated with the dissolving tank; an outlet of the dissolving tank is connected with an inlet of the storing tank by the discharging valve and an infusion pump in sequence; and the liquid level meters are arranged on the storing tank and the dissolving tank. The denitration system reducing agent urea solution preparing device has high degree of automation, can reduce the labor intensity of operators, and is high in operation efficiency.
Description
Technical field
The utility model relates to a kind of denitrating system reducing agent urea liquid preparation facilities.
Background technology
Gas denitrifying technology is to utilize to contain amino denitrification reducing agent such as liquefied ammonia and urea etc. and carry out reduction reaction with NOx in the flue gas, with NO and NO
2Change into N
2And H
2O.The most frequently used denitrification reducing agent is a urea.Commodity urea is generally solid granulates, must earlier it be dissolved into certain density urea liquid when being used for denitration, and deliver to the denitrating system of each boiler through the circulatory system.Generally adopt the continuous of fully automatic operation abroad or be interrupted dissolver.It is on-the-spot that urea in bulk is transported to dissolving through the groove tank car, and strength is delivered to the high-order bunker of urea, through metering valve continuously or be interrupted and quantitatively be added to dissolving tank, after stirring and dissolving, goes to the urea liquid basin.Deliver to the denitrating system confession use of each boiler again through the circulatory system.Whole system all adopts control automatically, fully automatic operation.The domestic groove tank car that does not then also carry the transportation of urea of strength conveying, urea in bulk is stored moisture-sensitive and the also bad solution of agglomeration problems, so the manually operated intermitten service mode of many employings.Packed (general 50kg/ bag) urea is after automobile is transported to the dissolving scene, and manual work is transported to charge door on the dissolving tank, and manual work is opened the bag back and added dissolving tank, after stirring and dissolving, goes to urea liquid basin (general two).The boiler of feeding denitrating system uses.System basically can only Artificial Control, and urea dissolution process labour intensity is big, and efficiency is low.
The utility model content
The technical problem to be solved of the utility model provides a kind of denitrating system reducing agent urea liquid preparation facilities, and this denitrating system reducing agent urea liquid preparation facilities automaticity is high, can alleviate operating personnel's working strength, and operating efficiency is high.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of denitrating system reducing agent urea liquid preparation facilities comprises urea bucket, feed valve, Pneumatic conveyer, cyclone gas-solid separator, dissolving tank, dissolving tank water intaking valve, bleeder valve, agitator, delivery pump, basin, liquid level gauge and controller;
The import of feed valve connects the urea bucket, and the outlet of feed valve is the charging aperture of Pneumatic conveyer;
The delivery outlet of Pneumatic conveyer connects the cyclone gas-solid separator, and the upper end of cyclone gas-solid separator is provided with aiutage, the tremie pipe connecting dissolution jar of cyclone gas-solid separator lower end; Be provided with agitator in the dissolving tank; The inlet of dissolving tank water intaking valve is the demineralized water interface, and the outlet of dissolving tank water intaking valve is communicated with dissolving tank;
The outlet of dissolving tank links to each other with the inlet of basin with infusion pump through bleeder valve successively; Be equipped with liquid level gauge on basin and the dissolving tank;
Liquid level gauge, feed valve, bleeder valve and dissolving tank water intaking valve all are connected with controller.
Pneumatic conveyer comprises air cleaner, blower fan and the strength delivery pump that connects successively; The material inlet of strength delivery pump links to each other with the outlet of urea bucket through feed valve.
Strength delivery pump and urea bucket all are arranged in the melt pit, and the urea bucket is provided with flase floor.
On the urea bucket, be provided with level-sensing device, described level-sensing device is connected with controller.
Be provided with the taper air diffuser in the lower end of tremie pipe.
In aiutage, be provided with the screen pack that is used to filter urea granules.
Described denitrating system reducing agent urea liquid preparation facilities also comprises a reserve tank parallelly connected with basin, and the porch of basin and the porch of reserve tank all are connected to the basin inlet valve, and the basin inlet valve is connected with controller.
Described controller is PLC or DCS.
Described denitrating system reducing agent urea liquid preparation facilities also comprises and is used for the urea transport from warehouse to the urea bucket with packed urea; The urea transport comprises conveying, clamping device and electric block; Described electric block is mounted on the conveying, and clamping device is installed in the cable wire lower end of electric block.
The beneficial effect of the utility model:
The utility model adopts the melt pit mode that the urea bucket is installed; Packed urea is stored in the urea warehouse after automobile is transported to the scene; Time spent goes on the flase floor on the urea bucket through urea transport (or handcart); Manual work is opened bag and is poured in the urea bucket, adopts pneumatic conveying mode that urea is delivered to the cyclone gas-solid separator on the dissolving tank.Gas is discharged from the blast pipe on top, and urea falls into dissolving tank through tremie pipe and the diffusing stream of taper device, after stirring and dissolving, goes to two urea liquid basins with pump.Unloading and open bag except that urea is the manual work, and all the other are control operation automatically entirely.The denitrating system reducing agent urea liquid preparation facilities of the utility model; Both overcome the foreign system too complex, required too high problem, solved the hardship of the manpower of urea carrying again, improved the efficient of urea dissolution process greatly; And on-the-spot flexible arrangement is not limited by or not the place.
Description of drawings
Fig. 1 is the general structure sketch map of this urea liquid preparation facilities.
Fig. 2 is the structural representation of cyclone gas-solid separator.
Label declaration: 1: urea warehouse 2: urea carrier 3: packed urea 4: clamping device (manipulator) 5: electric block 6: roots blower 7: air cleaner 8: melt pit 9: the continuous strength delivery pump 10 of urea: feed valve 11: urea bucket 12: flase floor 13: cyclone gas-solid separator 14: dissolving tank 15: agitator 16: dissolving tank bleeder valve 17: urea liquid delivery pump 18: basin inlet valve 19: basin 20: liquid level gauge 21: dissolving tank water intaking valve 22: aiutage 23: screen pack 24: tremie pipe 25: taper air diffuser 26:PLC switch board, 27: level-sensing device.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment 1:
Shown in Fig. 1-2; A kind of denitrating system reducing agent urea liquid preparation facilities comprises urea bucket, feed valve, Pneumatic conveyer, cyclone gas-solid separator, dissolving tank, dissolving tank water intaking valve, bleeder valve, agitator, delivery pump, basin, liquid level gauge and controller; The import of feed valve connects the urea bucket, and the outlet of feed valve is the charging aperture of Pneumatic conveyer; The delivery outlet of Pneumatic conveyer connects the cyclone gas-solid separator, and the upper end of cyclone gas-solid separator is provided with aiutage, the tremie pipe connecting dissolution jar of cyclone gas-solid separator lower end; Be provided with agitator in the dissolving tank; The inlet of dissolving tank water intaking valve is the demineralized water interface, and the outlet of dissolving tank water intaking valve is communicated with dissolving tank; The outlet of dissolving tank links to each other with the inlet of basin with infusion pump through bleeder valve successively; Be equipped with liquid level gauge on basin and the dissolving tank; Liquid level gauge, feed valve, bleeder valve and dissolving tank water intaking valve all are connected with controller.
Pneumatic conveyer comprises air cleaner, blower fan and the strength delivery pump that connects successively; The material inlet of strength delivery pump links to each other with the outlet of urea bucket through feed valve.
Strength delivery pump and urea bucket all are arranged in the melt pit, and the urea bucket is provided with flase floor.
On the urea bucket, be provided with level-sensing device, described level-sensing device is connected with controller.
Be provided with the taper air diffuser in the lower end of tremie pipe.
In aiutage, be provided with the screen pack that is used to filter urea granules.
Described denitrating system reducing agent urea liquid preparation facilities also comprises a reserve tank parallelly connected with basin, and the porch of basin and the porch of reserve tank all are connected to the basin inlet valve, and the basin inlet valve is connected with controller.
Described controller is PLC or DCS.
Described denitrating system reducing agent urea liquid preparation facilities also comprises and is used for the urea transport from warehouse to the urea bucket with packed urea; The urea transport comprises conveying, clamping device and electric block; Described electric block is mounted on the conveying, and clamping device is installed in the cable wire lower end of electric block.
The work and the technical process of the utility model are following:
1. packed urea automobile is stored in the urea warehouse after being transported to the scene, unload with sign indicating number heap all can be by means of electric block, to reduce labor intensity.
2. when preparing urea liquid, will prepare one jar of required urea of solution through urea transport (or handcart) and be transported on the flase floor (stainless steel) on the urea bucket that is loaded in the melt pit, manual work is poured the urea bucket into after opening bag.
3. PLC (or DCS) switch board procedure auto-control is opened the dissolving tank water intaking valve simultaneously; After the dissolving tank water level rises to designated water level; Liquid level gauge on the dissolving tank sends signal, and procedure auto-control starts electric blender earlier, starts the urea air-transport system then.Air is delivered to the continuous delivery pump of urea by the roots blower pressurization behind filter, the urea in the urea bucket gets into strength delivery pump (being the continuous strength delivery pump of urea) through feed valve, is delivered to the cyclone gas-solid separator on the urea dissolving tank by strength.The adjustable rotating speed of urea feed valve, thus the urea feeding coal regulated.The cyclone gas-solid separator utilizes the cyclonic separation principle, and gas is equipped with the stainless steel screen pack through the aiutage emptying in the aiutage, hold back carbamide dust with filtration.The solid urea particle then tremie pipe through the separator bottom falls into urea dissolver (being dissolving tank).A taper air diffuser is equipped with in the tremie pipe outlet, makes urea disperse to be spilled in the dissolving tank water, prevents caking in heaps.Urea is carried and to be finished in the bucket, and the level-sensing device at the bucket end sends signal, the program power induction system of stopping the supple of gas or steam automatically.
4. after waiting to stir certain hour, program is opened the dissolving tank water intaking valve again, and water level is raised to and closes valve behind the peak level of setting and stop into ending water inlet, stops to stir after stirring certain hour again, and one jar of urea liquid preparation finishes.
5. program is opened dissolving tank bleeder valve, urea liquid basin inlet valve and urea liquid delivery pump automatically, and urea liquid in the dissolving tank is gone to the urea liquid basin.
6. after urea liquid dissolving tank liquid level gauge recorded the lowest order that liquid level drops to setting, the corresponding valve that program stoppage in transit urea liquid delivery pump and preceding step open repeated above-mentioned steps 2----6.
7. when online urea liquid basin liquid level gauge detection basin liquid level reached the highest order of setting, program was opened the inlet valve of another urea liquid basin automatically, closes the inlet valve of expiring basin simultaneously.Urea liquid is transported to another empty basin, repeats above-mentioned steps 2----6 once more, and also full until this basin, liquid level gauge sends signal, the program urea liquid delivery pump of stopping transport automatically, and this urea liquid prepares process to be accomplished.Two jars of urea liquids take turns the boiler of feeding denitration and use.
8. when the basin liquid level gauge detected some basin liquid levels and is lower than the minimum of setting, auto switching was to another basin work, and starting next time simultaneously, urea liquid prepares process.
Claims (9)
1. denitrating system reducing agent urea liquid preparation facilities; It is characterized in that, comprise urea bucket, feed valve, Pneumatic conveyer, cyclone gas-solid separator, dissolving tank, dissolving tank water intaking valve, bleeder valve, agitator, delivery pump, basin, liquid level gauge and controller;
The import of feed valve connects the urea bucket, and the outlet of feed valve is the charging aperture of Pneumatic conveyer;
The delivery outlet of Pneumatic conveyer connects the cyclone gas-solid separator, and the upper end of cyclone gas-solid separator is provided with aiutage, the tremie pipe connecting dissolution jar of cyclone gas-solid separator lower end; Be provided with agitator in the dissolving tank;
The inlet of dissolving tank water intaking valve is the demineralized water interface, and the outlet of dissolving tank water intaking valve is communicated with dissolving tank;
The outlet of dissolving tank links to each other with the inlet of basin with infusion pump through bleeder valve successively; Be equipped with liquid level gauge on basin and the dissolving tank;
Liquid level gauge, feed valve, bleeder valve and dissolving tank water intaking valve all are connected with controller.
2. denitrating system reducing agent urea liquid preparation facilities according to claim 1 is characterized in that, Pneumatic conveyer comprises air cleaner, blower fan and the strength delivery pump that connects successively; The material inlet of strength delivery pump links to each other with the outlet of urea bucket through feed valve.
3. denitrating system reducing agent urea liquid preparation facilities according to claim 2 is characterized in that strength delivery pump and urea bucket all are arranged in the melt pit, and the urea bucket is provided with flase floor.
4. denitrating system reducing agent urea liquid preparation facilities according to claim 1 is characterized in that on the urea bucket, be provided with level-sensing device, described level-sensing device is connected with controller.
5. denitrating system reducing agent urea liquid preparation facilities according to claim 1 is characterized in that, is provided with the taper air diffuser in the lower end of tremie pipe.
6. denitrating system reducing agent urea liquid preparation facilities according to claim 1 is characterized in that, in aiutage, is provided with the screen pack that is used to filter urea granules.
7. denitrating system reducing agent urea liquid preparation facilities according to claim 1; It is characterized in that; Also comprise a reserve tank parallelly connected with basin, the porch of basin and the porch of reserve tank all are connected to the basin inlet valve, and the basin inlet valve is connected with controller.
8. denitrating system reducing agent urea liquid preparation facilities according to claim 1 is characterized in that described controller is PLC or DCS.
9. according to each described denitrating system reducing agent urea liquid preparation facilities of claim 1-8, it is characterized in that, also comprise being used for the urea transport from warehouse to the urea bucket packed urea; The urea transport comprises conveying, clamping device and electric block; Described electric block is mounted on the conveying, and clamping device is installed in the cable wire lower end of electric block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203355892U CN202212111U (en) | 2011-09-08 | 2011-09-08 | Denitration system reducing agent urea solution preparing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203355892U CN202212111U (en) | 2011-09-08 | 2011-09-08 | Denitration system reducing agent urea solution preparing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202212111U true CN202212111U (en) | 2012-05-09 |
Family
ID=46011383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203355892U Expired - Fee Related CN202212111U (en) | 2011-09-08 | 2011-09-08 | Denitration system reducing agent urea solution preparing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202212111U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814111A (en) * | 2012-08-31 | 2012-12-12 | 四川美丰化工股份有限公司 | Production device of discharged treatment liquid of movable type diesel engine |
| CN104524949A (en) * | 2015-01-07 | 2015-04-22 | 东莞市红树林环保科技有限公司 | SNCR denitration method for urea solutions of double concentrations |
| CN106563364A (en) * | 2016-10-31 | 2017-04-19 | 珠海格力智能装备有限公司 | Stirring control method and device |
| CN106669477A (en) * | 2016-12-14 | 2017-05-17 | 珠海格力智能装备有限公司 | Preparation method and equipment of urea solution for vehicle |
| CN108619907A (en) * | 2018-04-28 | 2018-10-09 | 南京工业大学 | Vehicle urea reducing agent solution |
-
2011
- 2011-09-08 CN CN2011203355892U patent/CN202212111U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814111A (en) * | 2012-08-31 | 2012-12-12 | 四川美丰化工股份有限公司 | Production device of discharged treatment liquid of movable type diesel engine |
| CN104524949A (en) * | 2015-01-07 | 2015-04-22 | 东莞市红树林环保科技有限公司 | SNCR denitration method for urea solutions of double concentrations |
| CN106563364A (en) * | 2016-10-31 | 2017-04-19 | 珠海格力智能装备有限公司 | Stirring control method and device |
| CN106669477A (en) * | 2016-12-14 | 2017-05-17 | 珠海格力智能装备有限公司 | Preparation method and equipment of urea solution for vehicle |
| CN108619907A (en) * | 2018-04-28 | 2018-10-09 | 南京工业大学 | Vehicle urea reducing agent solution |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20170908 |