CN203790770U - Recycling device for urea dust - Google Patents
Recycling device for urea dust Download PDFInfo
- Publication number
- CN203790770U CN203790770U CN201420066355.6U CN201420066355U CN203790770U CN 203790770 U CN203790770 U CN 203790770U CN 201420066355 U CN201420066355 U CN 201420066355U CN 203790770 U CN203790770 U CN 203790770U
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- Prior art keywords
- urea
- recycling device
- moisture trap
- liquid
- gas
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a recycling device for urea dust. The recycling device comprises a gas-water separator positioned at the upper part of a urea granulation tower, wherein the upper part of the upper section of the gas-water separator is provided with a group of cleaning nozzles for spraying a circulatory absorbing liquid; the lower part of the upper section of the gas-water separator is provided with two groups of atomizing nozzles with opposite directions; a filler layer is arranged between the two groups of atomizing nozzles which are communicated with a circulatory absorbing pump by pipelines; a plurality of gas inlets are arranged on the side wall of the upper part of the lower section of the gas-water separator, and a liquid collecting box is arranged at the bottom part of the lower section of the gas-water separator; the bottom part of the liquid collecting box is communicated and connected with a liquid falling pipe; the lower part of the urea granulation tower is provided with a middle groove for receiving the circulatory absorbing liquid flowing down from the liquid falling pipe; and the middle groove is connected with the circulatory absorbing pump for conveying the circulatory absorbing liquid into the gas-water separator again. By the mode, the recycling device disclosed by the utility model has the advantages that urea dust particles generated in urea production can be effectively recycled, so that not only are the purposes of dust removal and recycling achieved, and simultaneously the environment is also protected.
Description
Technical field
The utility model relates to urea production equipment field, particularly relates to a kind of device of carbamide dust recycling.
Background technology
Urea production adopts gravity-flow ventilation slurry-spraying pelletizing technique, in granulation process, there is tiny particle powder to produce, under current Processes and apparatus condition, be also difficult to solve, part dust falls with urea granules, most of dust is taken out of and is scattered in around granulation tower by granulation tower tower top, ultra-fine powder disseminates farther, cause surrounding environment severe contamination, crops around of plant area and the growth of flowers, plants and trees are had a strong impact on, on-site equipment, road and building are caused to corrosion, after dust is taken away by rainwater, also can cause region water system ammonia nitrogen to exceed standard.Meanwhile, this part urea draining in vain, also causes certain economic loss.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of carbamide dust recycling device, can effectively reclaim the carbamide dust particle producing in urea production, has both reached the object that dedusting is reclaimed, and has also protected environment simultaneously.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of carbamide dust recycling device is provided, comprise the moisture trap that is positioned at urea prilling tower top, described moisture trap bottom is connected with downspout, described urea prilling tower bottom is provided with the medial launder for receiving the circulating absorption solution that downspout flows down, and described medial launder is connecting the circulation absorption pump that circulating absorption solution is delivered into again to described moisture trap;
The epimere top of described moisture trap is provided with one group of cleaning shower nozzle for spray cycle absorption liquid, the upper pars infrasegmentalis of described moisture trap is provided with two groups of atomizers that shower nozzle direction is relative, in the middle of described two groups of atomizers, is provided with packing layer, described in two groups, atomizer is by pipeline and described circulation absorption pump UNICOM; On the sidewall on the hypomere top of described moisture trap, offer some air inlets, the hypomere bottom of described moisture trap is liquid collection case, and the bottom of described liquid collection case connects and connects downspout.
In preferred embodiment of the utility model, described circulating absorption solution comes from urea condensed fluid or the waste hydrolyzed liquid of urea battery limit (BL).
In preferred embodiment of the utility model, be also provided with filter in the bottom of described downspout.
In preferred embodiment of the utility model, after described circulation absorption pump, be provided with the register that circulating absorption solution temperature is controlled to 40～50 DEG C.
In preferred embodiment of the utility model, on described medial launder, be connected with the liquid outlet that certain density circulating absorption solution is entered to urea production vapo(u)rization system.
The beneficial effects of the utility model are:
(1) a kind of carbamide dust recycling of the utility model device, adds circulating absorption solution by the cleaning shower nozzle that is positioned at urea prilling tower top, has both played the effect to system liquid feeding, has also washed moisture trap simultaneously;
(2) in the utility model, pass through system from air inlet with the gas of carbamide dust, the circulating absorption solution of contact after atomizer atomization, reaches the object that reclaims carbamide dust; Packing layer has effectively separated the liquid in gas, and the gas of processing is discharged from, and has ensured dust removing effects and gas-water separation effect, avoids the circulating absorption solution after atomization to cause secondary pollution to environment, has protected environment;
(3) in the utility model, circulating absorption solution is through the effect of circulation absorption pump, repeatedly absorb carbamide dust from middle concentrated flow to atomizer, enter medial launder through downspout again, urea concentration in circulating absorption solution increases gradually, when urea concentration in circulating absorption solution is raised to certain value, just enters urea production vapo(u)rization system and reclaims, both avoid the pollution of carbamide dust to surrounding environment, and also can increase urea production simultaneously;
(4) simple in structure, the low cost of manufacture of the utility model, safe and convenient to use.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one preferred embodiment;
In accompanying drawing, the mark of each parts is as follows: 1, clean shower nozzle, 2, atomizer, 3, filler, 4, enter
Gas port, 5, liquid collection case, 6, downspout, 7, urea prilling tower, 8, liquid outlet, 9, centre
Groove, 10, circulation absorption pump, 11, urea prilling system, 12, resolve waste liquid.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Refer to Fig. 1, the utility model embodiment comprises:
A kind of carbamide dust recycling device, comprise the moisture trap that is positioned at urea prilling tower 7 tops, the epimere top of moisture trap is provided with one group of cleaning shower nozzle 1 for spray cycle absorption liquid, the upper pars infrasegmentalis of moisture trap is provided with two groups of atomizers 2 that shower nozzle direction is relative, in the middle of two groups of atomizers 2, be provided with 3, two groups of atomizers 2 of packing layer by pipeline and circulation absorption pump 10 UNICOMs; On the sidewall on the hypomere top of moisture trap, offer some air inlets 4, the hypomere bottom of moisture trap is liquid collection case 5, and the bottom of liquid collection case 5 connects and connects downspout 6, and the bottom of downspout 6 is also provided with filter;
Urea prilling tower 7 bottoms are provided with the medial launder 9 for receiving the circulating absorption solution that downspout 6 flows down, medial launder 9 is connecting the circulation absorption pump 10 that circulating absorption solution is delivered into again to moisture trap, after circulation absorption pump 10, be provided with the register that circulating absorption solution temperature is controlled to 40～50 DEG C, on medial launder 9, be connected with the liquid outlet 8 that certain density circulating absorption solution is entered to urea production vapo(u)rization system.
The course of work of the present utility model is as follows:
When the utility model carbamide dust recycling device is brought into use, first add circulating absorption solution by the cleaning shower nozzle 1 that is positioned at moisture trap top to system, the circulating absorption solution is here urea condensed fluid or the waste hydrolyzed liquid that comes from urea battery limit (BL), can play washing moisture trap and the double action to system liquid feeding by cleaning shower nozzle 1 liquid feeding, when the amount of circulating absorption solution reaches a half of medial launder 9 liquid levels, ON cycle absorption pump 10 topping ups are to atomizer 2, start to pass into gas to be absorbed from air inlet 4 simultaneously, circulating absorption solution sprays from two groups of atomizers 2, start to absorb the carbamide dust in gas, packing layer 3 between two groups of atomizers 2 has effectively separated the liquid in gas, the gas of processing is discharged from, dust removing effects and gas-water separation effect are ensured, avoid the circulating absorption solution after atomization to cause secondary pollution to environment, protect environment, in the process of absorption carbamide dust, because circulating absorption solution dissolved urea is endothermic process, the temperature of circulating absorption solution constantly declines, and therefore needs to open register, and the temperature of circulating absorption solution is controlled to 40～50 DEG C, after the urea concentration in circulating absorption solution reaches certain value, just should enter urea production vapo(u)rization system by liquid outlet 8 and reclaim.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a carbamide dust recycling device, it is characterized in that, comprise the moisture trap that is positioned at urea prilling tower (7) top, described moisture trap bottom is connected with downspout (6), described urea prilling tower (7) bottom is provided with the medial launder (9) for receiving the circulating absorption solution that downspout (6) flows down, and described medial launder (9) is connecting the circulation absorption pump (10) that circulating absorption solution is delivered into again to described moisture trap;
The epimere top of described moisture trap is provided with one group of cleaning shower nozzle (1) for spray cycle absorption liquid, the upper pars infrasegmentalis of described moisture trap is provided with two groups of atomizers (2) that shower nozzle direction is relative, in the middle of described two groups of atomizers (2), be provided with packing layer (3), atomizer described in two groups (2) is by pipeline and described circulation absorption pump (10) UNICOM; On the sidewall on the hypomere top of described moisture trap, offer some air inlets (4), the hypomere bottom of described moisture trap is liquid collection case (5), and the bottom of described liquid collection case (5) connects and connects downspout (6).
2. carbamide dust recycling device according to claim 1, is characterized in that, described circulating absorption solution comes from urea condensed fluid or the waste hydrolyzed liquid of urea battery limit (BL).
3. carbamide dust recycling device according to claim 1, is characterized in that, is also provided with filter in the bottom of described downspout (6).
4. carbamide dust recycling device according to claim 1, is characterized in that, is provided with the register that circulating absorption solution temperature is controlled to 40～50 DEG C after described circulation absorption pump (10).
5. carbamide dust recycling device according to claim 1, is characterized in that, is connected with the liquid outlet (8) that certain density circulating absorption solution is entered to urea production vapo(u)rization system on described medial launder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066355.6U CN203790770U (en) | 2014-02-17 | 2014-02-17 | Recycling device for urea dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066355.6U CN203790770U (en) | 2014-02-17 | 2014-02-17 | Recycling device for urea dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203790770U true CN203790770U (en) | 2014-08-27 |
Family
ID=51373045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066355.6U Expired - Fee Related CN203790770U (en) | 2014-02-17 | 2014-02-17 | Recycling device for urea dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203790770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816753A (en) * | 2014-02-17 | 2014-05-28 | 江苏晋煤恒盛化工股份有限公司 | Urea dust recycling and reutilizing device |
| CN112473552A (en) * | 2020-11-17 | 2021-03-12 | 青岛伊莱新材料有限公司 | Dust separation and collection system of prilling tower |
-
2014
- 2014-02-17 CN CN201420066355.6U patent/CN203790770U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103816753A (en) * | 2014-02-17 | 2014-05-28 | 江苏晋煤恒盛化工股份有限公司 | Urea dust recycling and reutilizing device |
| CN112473552A (en) * | 2020-11-17 | 2021-03-12 | 青岛伊莱新材料有限公司 | Dust separation and collection system of prilling tower |
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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: 20140827 Termination date: 20150217 |