CN202148271U - Scab fertilizer melting prilling system for urea prilling tower - Google Patents
Scab fertilizer melting prilling system for urea prilling tower Download PDFInfo
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- CN202148271U CN202148271U CN201120241816U CN201120241816U CN202148271U CN 202148271 U CN202148271 U CN 202148271U CN 201120241816 U CN201120241816 U CN 201120241816U CN 201120241816 U CN201120241816 U CN 201120241816U CN 202148271 U CN202148271 U CN 202148271U
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- urea
- scar
- melts
- liquid outlet
- groove
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Abstract
The utility model provides a scab fertilizer melting prilling system for a urea prilling tower, which comprises a scab fertilizer melting tank (1) for resolving scab urea, a urine pump (3) and an evaporation unit (4). The scab fertilizer melting tank (1) is provided with a liquid outlet (12), an inlet of the urine pump is in pipeline connection with the liquid outlet (12) of the scab fertilizer melting tank (1), and the evaporation unit (4) is connected with an outlet pipeline of the urine pump. The scab fertilizer melting prilling system for the urea prilling tower improves yield of urea and resolves the problems that scab fertilizer is low in quality and utilization rate by regularly recycling scab fertilizer to prepare urea.
Description
Technical field
The utility model relates to a kind of urea waste recovery system, especially relates to a kind of urea prilling tower scar block manure and melts granulating system.
Background technology
By the organic cpds that carbon, nitrogen, oxygen and hydrogen are formed, its chemical formula is CON to urea (another name carbonyl diamine, carboxamide, urea)
2H
4, (NH
2)
2CO or CN
2H
4O.Urea is first kind of organic cpds that obtains with the synthetic inorganic substance, and outward appearance is white crystal or powder, is used as the nitrogenous fertilizer of plant usually.
In industry, use liquefied ammonia and carbonic acid gas to be raw material usually, direct urea synthesis under high-temperature and high-pressure conditions, chemical reaction is following:
2NH
3+CO
2→NH
2COONH
4→CO(NH
2)
2+H
2O
The urea technique development has become the requisite raw material of industrial or agricultural so far.Along with the progress of society, huge variation is also taking place in urea production, and the producer that can survive is all carrying out advanced technological transformation.Along with improving constantly of urea production capacity, and receive the restriction of initial designs ability, the problem that prilling tower scabs is difficult to avoid, and in the process that particularly produce summer, because the urea particle temperature is high, on pot bucket at the bottom of the tower, assembles a large amount of scar pieces easily.
Therefore, how to avoid the loss of scar piece urea, how scar piece urea is utilized again, become the brainstorm subject in urea field.
Summary of the invention
The utility model technical problem to be solved is to overcome the problem that scar block manure quality is low, utilization ratio is low, provides a kind of urea prilling tower scar block manure to melt granulating system, through regular recovery, utilize scar block manure to prepare urea.
In order to solve the problems of the technologies described above, the utility model provides a kind of urea prilling tower scar block manure to melt granulating system, and said system comprises: what be used to dissolve scar block manure melts the fertile groove 1 of scar, is provided with liquid outlet 12; Urine pump 3, the import of urine pump and liquid outlet 12 pipe connection that melt the fertile groove 1 of scar; And evaporation element 4, evaporation element 4 and urine pump outlet pipe connection.
Aforesaid urea prilling tower scar block manure melts granulating system, and the said fertile groove 1 of scar that melts further is provided with the water pipe 13 that is used to feed water.
Aforesaid urea prilling tower scar block manure melts granulating system, and the said fertile groove 1 of scar that melts further is provided with the vapour pipe 11 that is used to feed steam.
Aforesaid urea prilling tower scar block manure melts granulating system, and said system further comprises urea soln groove 2, and this urea soln groove is provided with fluid inlet 21 and liquid outlet 22.
Aforesaid urea prilling tower scar block manure melts granulating system; The said liquid outlet 12 that melts the fertile groove of scar is connected through pipeline with the fluid inlet of urine pump with the fluid inlet of urine pump, the liquid outlet 22 of urea soln groove simultaneously, and each pipeline is provided with and is used for selectivity and connects liquid outlet 12 and the liquid outlet 22 of urine pump fluid inlet or urea soln groove and the valve of urine pump fluid inlet that melts the fertile groove of scar.
Aforesaid urea prilling tower scar block manure melts granulating system; The fluid inlet 21 of urea soln groove is connected through pipeline with the liquid outlet of urine pump with the fluid inlet of the liquid outlet of urine pump, evaporation element 4 simultaneously, and each pipeline is provided with the fluid inlet 21 and the liquid outlet of urine pump or the fluid inlet and the urine pump liquid outlet of evaporation element 4 that is used for selectivity connection urea soln groove.
Aforesaid urea prilling tower scar block manure melts granulating system, and said evaporation element 4 comprises one section evaporation element, dual circulation unit, first gas-liquid separator and second gas-liquid separator.
Aforesaid urea prilling tower scar block manure melts granulating system, and said one section evaporation element and dual circulation unit have well heater.
According to technique scheme, the utility model has following beneficial effect at least:
1. utilize scar block manure, solved the problem that scar block manure quality is low, utilization ratio is low;
2. equipment used is a conventional equipment simply and all, easy for industrialized; Working method is simple, and general factory can adopt, and helps society generalization;
3. adopt valve control, can realize the urea soln storage, directly concentrate, use multiple mode, number of ways such as storage uncorrectable cellulose solution to handle scar block manure;
4. improve urea production, had high economic benefit.
Description of drawings
Fig. 1 is that the utility model urea prilling tower scar block manure melts granulating system.
Embodiment
For fully understanding purpose, characteristic and the effect of the utility model, by following concrete embodiment, and conjunction with figs., the utility model is elaborated.
Shown in Figure 1 is that the utility model urea prilling tower scar block manure melts granulating system.This system comprises: melt the fertile groove 1 of scar, urine pump 3 and evaporation element 4.Preferably, this system can also comprise urea soln groove 2.
The used scar block manure of the utility model is meant the urea scar block manure of prilling tower cement pot bucket, iron pan bucket.
Melting the fertile groove 1 of scar is uncovered hollow, and it is used for placing and dissolved urea scar block manure.Melt the fertile groove 1 preferred stainless steel tank of scar, but any groove with corrosion-resistant, resistance toheat is all within the protection domain of the utility model.Melt the fertile groove 1 of scar and be provided with vapour pipe 11, liquid outlet 12 and water pipe 13.Through the control of the valve on the water pipe 13, can connect water pipe 13 and melt the fertile groove 1 of scar, insert water through water pipe 13, the solid scar block manure that melts in the fertile groove of scar is dissolved.The water of this feeding can be the phlegma of the steam that reclaims when in the evaporation element 4 the urea soln concentration technology being handled.Vapour pipe 11 is positioned at the bottom of melting the fertile groove 1 of scar; The vapour pipe of preferred four ∮ 25; Through the control of the steam valve on the vapour pipe 11, can connect vapour pipe 11 and melt the fertile groove 1 of scar, high-temperature water vapor directly is passed into melts in the fertile groove 1 of scar; Material to melting in the fertile groove 1 of scar heats, and quickens the fertile thawing of scar.Liquid outlet 12 is positioned on the sidewall that melts the fertile groove 1 of scar.
The liquid outlet 12 that melts the fertile groove 1 of scar is connected the outlet of urine pump 3 and evaporation element 4 pipe connection with the inlet pipeline of urine pump 3.Through the effect of urine pump 3, can the urea soln that melt in the fertile groove 1 of scar directly be delivered to evaporation element 4.
Preferably, this system also comprises urea soln groove 2, and urea soln groove 2 is to seal hollow groove, is used for depositing the urea soln that obtains after fertile groove 1 dissolution process of scar through melting.Urea soln groove 2 preferred stainless steel tanks, but any groove with corrosion-resistant, resistance toheat is all within the protection domain of the utility model.Urea soln groove 2 is provided with fluid inlet 21 and liquid outlet 22.Fluid inlet 21 is positioned at the top of urea soln groove 2, and liquid outlet 22 is positioned at the bottom of urea soln groove sidewall.
The fluid inlet 21 of urea soln groove 2 is connected with pipeline F with pipeline D with the outlet of urine pump 3.The end of pipeline D connects the fluid inlet 21 of urea soln groove 2, the end of the other end connecting tube F of pipeline D, and the other end of pipeline F connects the outlet of urine pump 3.Pipeline D is provided with valve D1, opens or closes valve D1 according to actual needs.
In the utility model, the fluid inlet of evaporation element is connected with the end of pipeline E with pipeline G, and the other end of pipeline E is connected with the coupling end of pipeline F with pipeline D.Pipeline E is provided with valve E1, opens or closes valve E1 according to actual needs.Native system also has pipeline H, is used to feed system's urea soln.Pipeline H is connected with the coupling end of pipeline G with pipeline E.
To send into one section evaporation element with system's urea soln from the urea soln that urine pump 3 extracts; Use heater heats mixing urea solution to 130 ℃; Then this urea soln gets into first gas-liquid separator and implements gas-liquid separation, and the urea concentration after the separation is put to more than 95%; This urea soln is sent into the dual circulation unit; Use heater heats to 140 ℃; Then get into second gas-liquid separator and implement gas-liquid separation, the urea concentration after the separation is put to more than 99.7%, then this urea soln is carried out granulation through the evaporation melting pumping toward prilling tower.
Below in conjunction with concrete treatment process the utility model urea prilling tower scar block manure being melted granulating system is elaborated.
The scar block manure of prilling tower cement pot bucket, iron pan bucket is cleared up, gathered, the scar block manure unification that collects is put into melt the fertile groove 1 of scar.Open the valve on the water pipe 13, feeding water to scar fertilizer soaks fully in the fertile groove 1 of scar toward melting from water pipe 13.Turn off the valve on the water pipe 13, open steam valve, steam directly is passed into through vapour pipe 11 melts in the fertile groove 1 of scar, scar block manure solution is boiled, scar block manure is fully dissolved, obtain urea soln.Open valve A1 and valve E1, shut-off valve B1 and valve D1.In urine pump technique parameter is power of motor 5.5KW, flow 14.4m
3/ h under the condition of lift 40m, will melt the direct suction evaporation element 4 of urea soln in the fertile groove 1 of scar.The urea soln that extracts is sent into one section evaporation element with system's urea soln (through pipeline H); Use well heater heating under vacuum mixing urea solution to 130 ℃ to concentrate; Then this urea soln gets into first gas-liquid separator and implements gas-liquid separation, and the urea concentration after the separation is put to more than 95%; This urea soln is sent into the dual circulation unit, use well heater heating under vacuum to 140 ℃ to concentrate, then get into second gas-liquid separator and implement gas-liquid separation, the urea concentration after the separation is put to more than 99.7%.The concentrating urea solution that obtains is passed through urea melting pump (power of motor 18.5KW, flow 25m
3/ h, lift 80m) rotary nozzle that is sent to the granulation cat head carries out granulation, drops to the loss of the urea in the urea production process minimum.
The scar block manure cleaning of prilling tower cement pot bucket, iron pan bucket, collection can adopt the iron thick stick to lay, and in the packing bag of then packing into, reach certain quantity, and unified pouring into melted in the fertile groove 1 of scar.
The utility model system can be installed in the carbamide production system next door, for example in urea Stall pump house post the about 3m of one volumes is installed
3Uncovered steel tank, as melting the fertile groove 1 of scar.
In another embodiment of the utility model, open valve A1 and valve D1, shut-off valve B1 and valve E1.According to above-mentioned same way as dissolving scar block manure in melting the fertile groove 1 of scar, obtain urea soln.To melt the urea soln that obtains after the dissolution process in the fertile groove 1 of scar, through piping A, pipeline C, pipeline F and pipeline D, the fluid inlet 21 through urea soln groove 2 is stored in the urea soln groove.
In the another embodiment of the utility model, open valve B1 and valve E1, shut-off valve A1 and valve D1.The urea soln of storage in the urea soln groove 2 through piping B, pipeline C, pipeline F, pipeline E and pipeline G, gets into evaporation element 4.Then in evaporation element 4, urea soln is carried out obtaining concentrating urea solution like above-mentioned identical concentration.
The utility model equipment is simple, easy handling, can scar block manure be dissolved again, concentrate, and is used to prepare urea granules.In addition, the utility model adopts valve control, can realize the urea soln storage, directly concentrate, uses multiple mode, number of ways such as storage uncorrectable cellulose solution to handle scar block manure.
Above-mentioned embodiment is merely the principle and the effect thereof of illustrative the utility model, and sets forth the technical characterictic of the utility model, but not is used to limit the protection category of the utility model.Down without prejudice to the know-why of the utility model and spirit, can unlabored change or arrangement, all belong to the scope that the utility model is protected.
Claims (8)
1. a urea prilling tower scar block manure melts granulating system, it is characterized in that said system comprises: what be used to dissolve scar block manure melts the fertile groove (1) of scar, is provided with liquid outlet (12);
Urine pump (3), the import of urine pump and liquid outlet (12) pipe connection that melts the fertile groove of scar (1); And
Evaporation element (4), evaporation element (4) and urine pump outlet pipe connection.
2. urea prilling tower scar block manure according to claim 1 melts granulating system, it is characterized in that, the said fertile groove of scar (1) that melts further is provided with the water pipe (13) that is used to feed water.
3. urea prilling tower scar block manure according to claim 1 and 2 melts granulating system, it is characterized in that, the said fertile groove of scar (1) that melts further is provided with the vapour pipe (11) that is used to feed steam.
4. urea prilling tower scar block manure according to claim 1 melts granulating system, it is characterized in that said system further comprises urea soln groove (2), and this urea soln groove is provided with fluid inlet (21) and liquid outlet (22).
5. urea prilling tower scar block manure according to claim 4 melts granulating system; It is characterized in that; The said liquid outlet (12) that melts the fertile groove of scar is connected through pipeline with the fluid inlet of urine pump with the fluid inlet of urine pump, the liquid outlet (22) of urea soln groove simultaneously, and each pipeline is provided with and is used for selectivity and connects liquid outlet (12) and the liquid outlet (22) of urine pump fluid inlet or urea soln groove and the valve of urine pump fluid inlet that melts the fertile groove of scar.
6. urea prilling tower scar block manure according to claim 4 melts granulating system; It is characterized in that; The fluid inlet of urea soln groove (21) is connected through pipeline with the liquid outlet of urine pump with the liquid outlet of urine pump, the fluid inlet of evaporation element (4) simultaneously, and each pipeline is provided with the fluid inlet (21) and the liquid outlet of urine pump or the fluid inlet and the urine pump liquid outlet of evaporation element (4) that is used for selectivity connection urea soln groove.
7. urea prilling tower scar block manure according to claim 1 melts granulating system, it is characterized in that said evaporation element (4) comprises one section evaporation element, dual circulation unit, first gas-liquid separator and second gas-liquid separator.
8. urea prilling tower scar block manure according to claim 7 melts granulating system, it is characterized in that said one section evaporation element and dual circulation unit have well heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120241816U CN202148271U (en) | 2011-07-05 | 2011-07-05 | Scab fertilizer melting prilling system for urea prilling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120241816U CN202148271U (en) | 2011-07-05 | 2011-07-05 | Scab fertilizer melting prilling system for urea prilling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202148271U true CN202148271U (en) | 2012-02-22 |
Family
ID=45589337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120241816U Expired - Fee Related CN202148271U (en) | 2011-07-05 | 2011-07-05 | Scab fertilizer melting prilling system for urea prilling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202148271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187328A (en) * | 2016-07-07 | 2016-12-07 | 安徽淮化股份有限公司 | A kind of method and apparatus that defective urea product is dissolved loopback pelletize again |
| CN107266152A (en) * | 2017-08-24 | 2017-10-20 | 中化吉林长山化工有限公司 | Suitable for the production method and system of urea plant and the high tower compound fertilizer of granulation tower |
-
2011
- 2011-07-05 CN CN201120241816U patent/CN202148271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187328A (en) * | 2016-07-07 | 2016-12-07 | 安徽淮化股份有限公司 | A kind of method and apparatus that defective urea product is dissolved loopback pelletize again |
| CN107266152A (en) * | 2017-08-24 | 2017-10-20 | 中化吉林长山化工有限公司 | Suitable for the production method and system of urea plant and the high tower compound fertilizer of granulation tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Inner Mongolia Wulashan Fertilizer Co., Ltd. Assignor: Xishui County Furuide Chemical Co., Ltd. Contract record no.: 2012990000463 Denomination of utility model: Scab fertilizer melting prilling system for urea prilling tower Granted publication date: 20120222 License type: Exclusive License Record date: 20120702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20140705 |
|
| EXPY | Termination of patent right or utility model |