CN204745964U - Utilize analytic waste water of urea to replace large granule granulation dust removal washing system of desalinized water - Google Patents
Utilize analytic waste water of urea to replace large granule granulation dust removal washing system of desalinized water Download PDFInfo
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- CN204745964U CN204745964U CN201520428013.9U CN201520428013U CN204745964U CN 204745964 U CN204745964 U CN 204745964U CN 201520428013 U CN201520428013 U CN 201520428013U CN 204745964 U CN204745964 U CN 204745964U
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- urea
- shower
- waste water
- dust removal
- dedusting
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Abstract
The utility model discloses an utilize analytic waste water of urea to replace large granule granulation dust removal washing system of desalinized water has solved the serious problem of current urea production in -process water waste. In dust removal scrubber box (4) is delivered to in gaseous phase pipeline (2) that the urea dust passes through urea large granule granulator (1) top, be provided with draught fan (3) on gaseous phase pipeline (2), be provided with shower (5) in the top of dust removal scrubber box (4), be connected with the analytic waste water input tube (10) of urea on the entry of shower (5), be connected with washing circulating pump (6) on the liquid delivery outlet of dust removal scrubber box (4) bottom, the delivery outlet of washing circulating pump (6) passes through the entry intercommunication of circulation pipeline (7) and shower (5), be provided with on circulation pipeline (7) with shower (5) intercommunication department circulation stop valve (12). Avoid the waste of the energy and the pollution of environment, reduced manufacturing cost again.
Description
Technical field
The utility model relates to a kind of dedusting wash mill, the system of carbamide dust being carried out to dedusting washing particularly in a kind of urea bulky grain prilling granulator.
Background technology
In the production process of urea, urea per ton will produce the waste water of 0.55 cubic metre, and in waste water, the content of ammonia is 9%, and the content of urea is 1.3%.These waste water generally after hydrolysis and resolution system, after first reclaiming urea wherein and ammonia, then will be drained.In the bulky grain prilling granulator of urea production; because granulation can produce a large amount of carbamide dusts; bulky grain granulation dedusting washer is all equipped with generally; dedusting and recovery are carried out to carbamide dust; existing dedusting washer reclaims carbamide dust in comminutor gas phase with desalted water as absorbent, aborning, reclaims the desalted water that one ton of urea needs 181 kilograms; for 800,000 tons of urea plants, the desalted water about needing 22 tons per hour.Cause one side urea waste stripping liquid in the production process of urea to be discharged as waste water, another side is consuming desalted water again in a large number, defines i.e. contaminated environment, the again phenomenon of waste water resource.
Summary of the invention
The utility model provides a kind of bulky grain granulation dedusting washing system utilizing urea containing wastewater to substitute desalted water, solves the technical problem of water resource waste and the outer pollution discharging environment of waste water in existing urea production process.
The utility model solves above technical problem by the following technical programs:
A kind of bulky grain granulation dedusting washing system utilizing urea parsing waste water to substitute desalted water, comprise urea bulky grain comminutor and dedusting washer, carbamide dust is sent in dedusting washer casing by the gas phase pipeline at urea bulky grain comminutor top, gas phase pipeline is provided with air-introduced machine, shower is provided with above dedusting washer casing, the entrance of shower is connected with urea and resolves waste water input pipe, the liquid outlet of dedusting washer bottom half is connected with cleaning circulation pump, the delivery outlet of cleaning circulation pump is communicated with the entrance of shower by circulation line, with the circulation line of shower connectivity part on be provided with circulation stop valve.
The delivery outlet of cleaning circulation pump is connected with cleaning solution and removes urea system pipeline, cleaning solution goes urea system pipeline and urine groove to be connected together, and goes urea system pipeline is provided with cleaning solution delivery stop valve at cleaning solution.
The utility model, by the cycling and reutilization of waste water in urea production process, reaches economize energy, the object of protection of the environment and reduction production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
A kind of bulky grain granulation dedusting washing system utilizing urea parsing waste water to substitute desalted water, comprise urea bulky grain comminutor 1 and dedusting washer 4, carbamide dust is sent in dedusting washer casing 4 by the gas phase pipeline 2 at urea bulky grain comminutor 1 top, gas phase pipeline 2 is provided with air-introduced machine 3, shower 5 is provided with above dedusting washer casing 4, the entrance of shower 5 is connected with urea and resolves waste water input pipe 10, liquid outlet bottom dedusting washer casing 4 is connected with cleaning circulation pump 6, the delivery outlet of cleaning circulation pump 6 is communicated with the entrance of shower 5 by circulation line 7, with the circulation line 7 of shower 5 connectivity part on be provided with circulation stop valve 12.
The delivery outlet of cleaning circulation pump 6 is connected with cleaning solution and removes urea system pipeline 8, cleaning solution goes urea system pipeline 8 and urine groove 9 to be connected together, and goes urea system pipeline 8 is provided with cleaning solution delivery stop valve 11 at cleaning solution.
Carbamide dust in urea bulky grain comminutor 1 is sent to dedusting washer casing 4 from the gas phase pipeline 2 at its top by air-introduced machine 3; by circulating pump 6 by the urea in shower 5 circulated sprinkling absorption carbamide dust; when the urine concentration in cleaning solution reaches 45%; close closed loop stop valve 12; open cleaning solution delivery stop valve 11; go urea system pipeline 8 to be discharged in urine groove 9 by cleaning solution cleaning solution, reclaim.The supplementing water of existing washer uses desalted water.The utility model have employed urea parsing waste water and substitutes desalted water, can save a large amount of desalted water, and decreases the outer row that waste water resolved by urea, reaches and saves the double effects of row to environment outside valuable water resources and minimizing.
Claims (2)
1. the bulky grain granulation dedusting washing system utilizing urea parsing waste water to substitute desalted water, comprise urea bulky grain comminutor (1) and dedusting washer (4), it is characterized in that, carbamide dust is sent in dedusting washer casing (4) by the gas phase pipeline (2) at urea bulky grain comminutor (1) top, gas phase pipeline (2) is provided with air-introduced machine (3), the top of dedusting washer casing (4) is provided with shower (5), the entrance of shower (5) is connected with urea and resolves waste water input pipe (10), the liquid outlet of dedusting washer casing (4) bottom is connected with cleaning circulation pump (6), the delivery outlet of cleaning circulation pump (6) is communicated with the entrance of shower (5) by circulation line (7), with the circulation line (7) of shower (5) connectivity part on be provided with circulation stop valve (12).
2. a kind of bulky grain granulation dedusting washing system utilizing urea parsing waste water to substitute desalted water according to claim 1, it is characterized in that, the delivery outlet of cleaning circulation pump (6) is connected with cleaning solution and removes urea system pipeline (8), cleaning solution goes urea system pipeline (8) and urine groove (9) to be connected together, and goes urea system pipeline (8) is provided with cleaning solution delivery stop valve (11) at cleaning solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520428013.9U CN204745964U (en) | 2015-06-21 | 2015-06-21 | Utilize analytic waste water of urea to replace large granule granulation dust removal washing system of desalinized water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520428013.9U CN204745964U (en) | 2015-06-21 | 2015-06-21 | Utilize analytic waste water of urea to replace large granule granulation dust removal washing system of desalinized water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204745964U true CN204745964U (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520428013.9U Expired - Fee Related CN204745964U (en) | 2015-06-21 | 2015-06-21 | Utilize analytic waste water of urea to replace large granule granulation dust removal washing system of desalinized water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204745964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215853A (en) * | 2018-03-02 | 2019-09-10 | 中国石油天然气股份有限公司 | A kind of method and system preparing urea for vehicle aqueous solution |
-
2015
- 2015-06-21 CN CN201520428013.9U patent/CN204745964U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215853A (en) * | 2018-03-02 | 2019-09-10 | 中国石油天然气股份有限公司 | A kind of method and system preparing urea for vehicle aqueous 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: 20151111 Termination date: 20170621 |