CN205398503U - Substandard product urea recovery unit - Google Patents
Substandard product urea recovery unit Download PDFInfo
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- CN205398503U CN205398503U CN201620123866.6U CN201620123866U CN205398503U CN 205398503 U CN205398503 U CN 205398503U CN 201620123866 U CN201620123866 U CN 201620123866U CN 205398503 U CN205398503 U CN 205398503U
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- urea
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- carbamide
- stillpot
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Abstract
The utility model belongs to a substandard product urea recovery unit, including urea wet dedusting device, substandard product urea warehouse and large granule prilling granulator, the export of urea wet dedusting device bottom links to each other with the first import at precipitation tank top, the turbid liquid export of precipitation tank bottom links to each other with large granule prilling granulator through first tee bend and turbid liquid pump, precipitation tank lower part purified liquor outlet passes through the urine pump and first governing valve is continuous with dissolving kettle's first import, it is continuous with dissolving kettle's second import that substandard product urea warehouse passes through substandard product urea metering device, dissolving kettle's inside is equipped with heating device and agitating unit, dissolving kettle's bottom is equipped with the export of dense urea solution, the export of dense urea solution links to each other with first three -way third end through urea solution feed back pump, it is nimble to have the operation, can retrieve all substandard products and recycle, reduces the urea defective percentage, and market adaptability is strong, can adjust the amount of production of urea and compound fertilizer according to the market demand, effectively reduces the manufacturing cost's of enterprise advantage.
Description
Technical field
This utility model belongs to substandard products carbamide recovery technology field, is specifically related to a kind of substandard products urea recovery unit.
Background technology
In chemical fertilizer production industry, production process there will be some bulky grain bulk carbamide or scar block carbamide, and the waste liquid after wet dedusting is adopted for reclaiming carbamide dust, often cannot process for those solid scar block carbamide, it is typically all and sells some producers of compound fertilizer at a low price, use as crystal seed after being pulverized by producer of compound fertilizer, but so very unfavorable to reducing production cost, that a part of waste liquid simultaneously, it is generally carried out evaporation prilling again by having reclaimed vapo(u)rization system, so increase the load of vapo(u)rization system, too increase the steam consumption of vapo(u)rization system simultaneously.
Utility model content
The purpose of this utility model is in that to overcome deficiency of the prior art and provides a kind of can effectively solve the problem that to produce substantial amounts of solid waste in existing urea production process and problem that liquid waste cannot process, there is investment little, flexible operation, all substandard products can be carried out recycling, reduce the defect rate of carbamide, strong adaptability to market, can effectively reduce a kind of substandard products urea recovery unit of enterprise's production cost.
The purpose of this utility model is achieved in that and includes carbamide Wet-way dust-collector, substandard products carbamide warehouse and bulky grain prilling granulator, outlet bottom carbamide Wet-way dust-collector is connected with first import at stillpot top, bottom stillpot, the outlet of turbid liquid is connected with bulky grain prilling granulator with turbid liquid pump by the first threeway, stillpot bottom purified liquor outlet regulates valve by urine pump and first and is connected with the first import of dissolution kettle, substandard products carbamide warehouse is connected with the second import of dissolution kettle by substandard products carbamide metering device, the inside of described dissolution kettle is provided with heater and agitating device, the bottom of dissolution kettle is provided with concentrated urea solution outlet, the outlet of described concentrated urea solution is connected by the 3rd end of urea liquid feed back pump and the first threeway.
It is provided with the second threeway between described urea liquid feed back pump and the 3rd end of the first threeway, 3rd end of the second threeway is connected with the import at measuring tank top by the second adjustment valve, the top of described measuring tank is connected with second import at stillpot top by overflow pipe, the bottom of described measuring tank is connected with the triple feed inlet at stillpot top by recovery channel, the bottom of measuring tank is connected with reactor top inlet by discharge tube, raw material cabin is connected with the charging aperture at reactor top by metering device, discharging opening bottom reactor is connected with Liquid Fertilizer packaging system by the 9th valve；Described overflow pipe is provided with overflow detection device, described recovery channel is provided with the 3rd adjustment valve, discharge tube is provided with the 4th adjustment valve；Described reactor is internally provided with stirring apparatus for reaction kettle and reactor heater.
It is provided with the first valve between the outlet of turbid liquid and the first threeway bottom described stillpot, between the 3rd end and second threeway of the first threeway, is provided with the second valve；It is provided with the 3rd valve between concentrated urea solution outlet and urea liquid feed back pump.
This utility model is by utilizing precipitation, existing solid substandard products carbamide and liquid substandard products carbamide are carried out centralized recovery utilization by the devices such as dissolving, solve the substandard products in urea production process and recycle problem, also provide the device that a kind of NEW TYPE OF COMPOSITE fertilizer produces simultaneously, the compound fertilizer of Different Nutrition composition can be produced by change proportioning or material composition, can effectively solve the problem that and existing urea production process produces substantial amounts of solid waste and problem that liquid waste cannot process, there is investment little, flexible operation, all substandard products can be carried out recycling, reduce the defect rate of carbamide, strong adaptability to market, the volume of production of carbamide and compound fertilizer can be adjusted according to the demand in market, and multiple compound fertilizer can be produced, the advantage effectively reducing enterprise's production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing illustrates detailed description of the invention of the present utility model, and label identical in the various figures represents identical parts.For making simplified form, only schematically show the part relevant to utility model in each figure, they do not represent its practical structures as product.
nullAs shown in Figure 1，This utility model includes carbamide Wet-way dust-collector 1、Substandard products carbamide warehouse 16 and bulky grain prilling granulator 7，Outlet bottom carbamide Wet-way dust-collector 1 is connected with first import at stillpot 2 top，Bottom stillpot 2, the outlet of turbid liquid is connected with bulky grain prilling granulator 7 with turbid liquid pump 5 by the first threeway 20，Stillpot 2 bottom purified liquor outlet regulates valve 11 by urine pump 9 with first and is connected with the first import of dissolution kettle 12，Substandard products carbamide warehouse 16 is connected with the second import of dissolution kettle 12 by substandard products carbamide metering device 10，The inside of described dissolution kettle 12 is provided with heater 13 and agitating device 14，The bottom of dissolution kettle 12 is provided with concentrated urea solution outlet 30，Described concentrated urea solution outlet 30 is connected with the 3rd end of the first threeway 20 by urea liquid feed back pump 17.It is provided with the second threeway 4 between described urea liquid feed back pump 17 and the 3rd end of the first threeway 20, 3rd end of the second threeway 4 is connected with the import at measuring tank 22 top by the second adjustment valve 21, the top of described measuring tank 22 is connected with second import at stillpot 2 top by overflow pipe, the bottom of described measuring tank 22 is connected with the triple feed inlet at stillpot 2 top by recovery channel, the bottom of measuring tank 22 is connected with reactor 27 top inlet by discharge tube, raw material cabin 8 is connected with the charging aperture at reactor 27 top by metering device 6, discharging opening bottom reactor 27 is connected with Liquid Fertilizer packaging system 18 by the 9th valve 29；Described overflow pipe is provided with overflow detection device 24, described recovery channel is provided with the 3rd adjustment valve 23, discharge tube is provided with the 4th adjustment valve 25；Described reactor 27 is internally provided with stirring apparatus for reaction kettle 28 and reactor heater 26.It is provided with the first valve 3 between the outlet of turbid liquid and the first threeway 20 bottom described stillpot 2, between the 3rd end and second threeway 4 of the first threeway 20, is provided with the second valve 19；It is provided with the 3rd valve 15 between concentrated urea solution outlet 30 and urea liquid feed back pump 17.
The recovery method of a kind of substandard products urea recovery unit, including carbamide recovery method, the first carbamide and Liquid Fertilizer recovery method, the second carbamide and Liquid Fertilizer recovery method；
A, carbamide recovery method comprise the steps:
Step one: the dilute urea solution in carbamide Wet-way dust-collector 1 is entered in stillpot 2 by the first import of the outlet bottom carbamide Wet-way dust-collector 1 and stillpot 2 top and precipitates, and includes the turbid liquid of lower floor and the clear liquid on upper strata after precipitation；
Step 2: the turbid liquid of lower floor described in step one is entered bulky grain prilling granulator 7 carried out pelletize by the outlet of turbid liquid, the first threeway 20 and turbid liquid pump 5 bottom stillpot 2, can sell outward after pelletize；
Step 3: the clear liquid on upper strata described in step one regulates valve 11 by stillpot 2 bottom purified liquor outlet, urine pump 9, first, the first import of dissolution kettle 12 enters in dissolution kettle 12；Substandard products carbamide warehouse 16 is entered in dissolution kettle 12 by the second import of substandard products carbamide metering device 10 and dissolution kettle 12；Above two material forms concentrated urea solution after the blended stirring of dissolution kettle 12 and heating；
Step 4: concentrated urea solution described in step 3 enters the first threeway 20 by the 3rd end of concentrated urea solution outlet 30, the 17, second valve the 19, first threeway 20 of urea liquid feed back pump, and after mixing with the turbid liquid of lower floor described in step one, turbid liquid pump 5 enters bulky grain prilling granulator 7 and carries out pelletize, can sell outward after pelletize；
B, the first carbamide and Liquid Fertilizer recovery method, comprise the steps:
Step one: the dilute urea solution in carbamide Wet-way dust-collector 1 is entered in stillpot 2 by the first import of the outlet bottom carbamide Wet-way dust-collector 1 and stillpot 2 top and precipitates, and includes the turbid liquid of lower floor and the clear liquid on upper strata after precipitation；
Step 2: the turbid liquid of lower floor described in step one is entered bulky grain prilling granulator 7 carried out pelletize by the outlet of turbid liquid, the first threeway 20 and turbid liquid pump 5 bottom stillpot 2, can sell outward after pelletize；
Step 3: the clear liquid on upper strata described in step one regulates valve 11 by stillpot 2 bottom purified liquor outlet, urine pump 9, first, the first import of dissolution kettle 12 enters in dissolution kettle 12；Substandard products carbamide warehouse 16 is entered in dissolution kettle 12 by the second import of substandard products carbamide metering device 10 and dissolution kettle 12；Above two material forms concentrated urea solution after the blended stirring of dissolution kettle 12 and heating；
Step 4: close the second valve 19, open the second adjustment valve 21, concentrated urea solution described in step 3 is entered in measuring tank 22 by concentrated urea solution outlet 30, the 3rd end of urea liquid feed back pump the 17, second threeway 4, the second import regulating valve 21 and measuring tank 22 top；Now the 3rd adjustment valve 23 and the 4th adjustment valve 25 are in closed mode；
Step 5: when overflow detection device 24 detects the concentrated urea solution having overflow in overflow pipe, open the 4th adjustment valve 25, close the second adjustment valve 21, carbamide feed back pump 17 is out of service, wherein the 4th adjustment valve 25 is automatically switched off after opening 30s, and the concentrated urea solution in measuring tank 22 is entered in reactor 27 by reactor 27 top inlet；Raw material in raw material cabin 8 enters in reactor 27 by the charging aperture at metering device 6 and reactor 27 top, above two material forms Liquid Fertilizer after blended stirring and heating in reactor 27, Liquid Fertilizer is entered in Liquid Fertilizer packaging system 18 by the 9th valve 29 and packs, and can sell outward；Raw material in described raw material cabin 8 is one of ammonium nitrate, ammonium nitrate phosphorus, potassium sulfate or ammonium dihydrogen phosphate；
Step 6: after the 4th described in step 5 regulates valve 25 closedown, the above-mentioned steps that reruns four and step 5；
Step 7: after measuring tank 22 described in step 5 uses 48h, when 4th adjustment valve 25 is automatically switched off state after being in operation 30s, open the 3rd adjustment valve 23, make the contamination precipitation material in measuring tank 22 enter recovery in stillpot 2 by the triple feed inlet at recovery channel and stillpot 2 top and use；
C, the second carbamide and Liquid Fertilizer recovery method, comprise the steps:
Step one: the dilute urea solution in carbamide Wet-way dust-collector 1 is entered in stillpot 2 by the first import of the outlet bottom carbamide Wet-way dust-collector 1 and stillpot 2 top and precipitates, and includes the turbid liquid of lower floor and the clear liquid on upper strata after precipitation；
Step 2: the turbid liquid of lower floor described in step one is entered bulky grain prilling granulator 7 carried out pelletize by the outlet of turbid liquid, the first threeway 20 and turbid liquid pump 5 bottom stillpot 2, can sell outward after pelletize；
Step 3: the clear liquid on upper strata described in step one regulates valve 11 by stillpot 2 bottom purified liquor outlet, urine pump 9, first, the first import of dissolution kettle 12 enters in dissolution kettle 12；Substandard products carbamide warehouse 16 is entered in dissolution kettle 12 by the second import of substandard products carbamide metering device 10 and dissolution kettle 12；Above two material forms concentrated urea solution after the blended stirring of dissolution kettle 12 and heating；
Step 4: open the second valve 19 and second and regulate valve 21, concentrated urea solution described in step 3 enters in the second threeway 4 by concentrated urea solution outlet 30 and urea liquid feed back pump 17, concentrated urea solution is divided into two parts in the second threeway 4, the 3rd end in part through second valve the 19, first threeway 20 enters the first threeway 20, and after mixing with the turbid liquid of lower floor described in step one, turbid liquid pump 5 enters bulky grain prilling granulator 7 and carries out pelletize, can sell outward after pelletize；Another part is entered in measuring tank 22 by the 3rd end of the second threeway 4, the second import regulating valve 21 and measuring tank 22 top；Now the 3rd adjustment valve 23 and the 4th adjustment valve 25 are in closed mode；
Step 5: when overflow detection device 24 detects the concentrated urea solution having overflow in overflow pipe, open the 4th adjustment valve 25, close the second adjustment valve 21 and the second valve 19, carbamide feed back pump 17 is out of service, wherein the 4th adjustment valve 25 is automatically switched off after opening 30s, and the concentrated urea solution in measuring tank 22 is entered in reactor 27 by reactor 27 top inlet；Raw material in raw material cabin 8 enters in reactor 27 by the charging aperture at metering device 6 and reactor 27 top, above two material forms Liquid Fertilizer after blended stirring and heating in reactor 27, Liquid Fertilizer is entered in Liquid Fertilizer packaging system 18 by the 9th valve 29 and packs, and can sell outward；Raw material in described raw material cabin 8 is one of ammonium nitrate, ammonium nitrate phosphorus, potassium sulfate or ammonium dihydrogen phosphate；
Step 6: after the 4th described in step 5 regulates valve 25 closedown, the above-mentioned steps that reruns four and step 5；
Step 7: after measuring tank 22 described in step 5 uses 48h, when 4th adjustment valve 25 is automatically switched off state after being in operation 30s, open the 3rd adjustment valve 23, make the contamination precipitation material in measuring tank 22 enter recovery in stillpot 2 by the triple feed inlet at recovery channel and stillpot 2 top and use.
This utility model can produce multiple compound fertilizer, can be adjusted by the raw material in raw material cabin 8, and the raw material in raw material cabin 8 is one of ammonium nitrate, ammonium nitrate phosphorus, potassium sulfate or ammonium dihydrogen phosphate.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation " etc. should be interpreted broadly, for instance, it is possible to it is fixing connection, connects integratedly, it is also possible to be removably connect；It can also be the connection of two element internals；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be.Foregoing detailed description is only for illustrating of feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, and all equivalent implementations, change and transformations made without departing from this utility model skill spirit should be included within protection domain of the present utility model.
Claims (3)
- null1. a substandard products urea recovery unit，Including carbamide Wet-way dust-collector (1)、Substandard products carbamide warehouse (16) and bulky grain prilling granulator (7)，It is characterized in that: the outlet of carbamide Wet-way dust-collector (1) bottom is connected with first import at stillpot (2) top，The turbid liquid outlet of stillpot (2) bottom is connected with bulky grain prilling granulator (7) with turbid liquid pump (5) by the first threeway (20)，Stillpot (2) bottom purified liquor outlet regulates valve (11) by urine pump (9) with first and is connected with the first import of dissolution kettle (12)，Substandard products carbamide warehouse (16) are connected by the second import of substandard products carbamide metering device (10) with dissolution kettle (12)，The inside of described dissolution kettle (12) is provided with heater (13) and agitating device (14)，The bottom of dissolution kettle (12) is provided with concentrated urea solution outlet (30)，Described concentrated urea solution outlet (30) is connected by the 3rd end of urea liquid feed back pump (17) with the first threeway (20).
- null2. a kind of substandard products urea recovery unit according to claim 1，It is characterized in that: between described urea liquid feed back pump (17) and the 3rd end of the first threeway (20), be provided with the second threeway (4)，3rd end of the second threeway (4) is connected with the import at measuring tank (22) top by the second adjustment valve (21)，The top of described measuring tank (22) is connected with second import at stillpot (2) top by overflow pipe，The bottom of described measuring tank (22) is connected with the triple feed inlet at stillpot (2) top by recovery channel，The bottom of measuring tank (22) is connected with reactor (27) top inlet by discharge tube，Raw material cabin (8) is connected by the charging aperture of metering device (6) with reactor (27) top，The discharging opening of reactor (27) bottom is connected with Liquid Fertilizer packaging system (18) by the 9th valve (29)；Described overflow pipe is provided with overflow detection device (24), described recovery channel is provided with the 3rd adjustment valve (23), discharge tube is provided with the 4th adjustment valve (25)；Described reactor (27) is internally provided with stirring apparatus for reaction kettle (28) and reactor heater (26).
- 3. a kind of substandard products urea recovery unit according to claim 1, it is characterized in that: be provided with the first valve (3) between the turbid liquid outlet of described stillpot (2) bottom and the first threeway (20), between the 3rd end and second threeway (4) of the first threeway (20), be provided with the second valve (19)；It is provided with the 3rd valve (15) between concentrated urea solution outlet (30) and urea liquid feed back pump (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123866.6U CN205398503U (en) | 2016-02-04 | 2016-02-04 | Substandard product urea recovery unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123866.6U CN205398503U (en) | 2016-02-04 | 2016-02-04 | Substandard product urea recovery unit |
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| CN205398503U true CN205398503U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620123866.6U Withdrawn - After Issue CN205398503U (en) | 2016-02-04 | 2016-02-04 | Substandard product urea recovery unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585364A (en) * | 2016-02-04 | 2016-05-18 | 河南心连心化肥有限公司 | Defective urea recovery device and recovery method |
-
2016
- 2016-02-04 CN CN201620123866.6U patent/CN205398503U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585364A (en) * | 2016-02-04 | 2016-05-18 | 河南心连心化肥有限公司 | Defective urea recovery device and recovery method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 453731 Xinxiang Economic Development Zone, Henan Province (Xiaoji Town) Patentee after: Henan Xinlianxin Chemical Industry Group Co., Ltd. Address before: 453731 Henan Xinxiang Economic Development Zone Xiaoji Town Henan Xinlianxin Chemical Fertilizer Co., Ltd. Patentee before: Henan XInlianxin Fertiliser Limited Company |
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| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20220128 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20220128 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |