CN1325834A - Long-distance delivery method and system for urine used to prepare urea-base compound fertilizer by spraying it - Google Patents
Long-distance delivery method and system for urine used to prepare urea-base compound fertilizer by spraying it Download PDFInfo
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- CN1325834A CN1325834A CN 00108451 CN00108451A CN1325834A CN 1325834 A CN1325834 A CN 1325834A CN 00108451 CN00108451 CN 00108451 CN 00108451 A CN00108451 A CN 00108451A CN 1325834 A CN1325834 A CN 1325834A
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Abstract
A long-distance delivery method and system for the urine used to prepare urea-base composite fertilizer by spraying it is disclosed. Said system is composed of the insulating urine delivering pipeline system with insulating jacket structure and the urine concentration control system composed of electric regulation valve, flow sensor, regulator, and injecting pump for diluting liquid. The urine with 92-99.7% of concentration at 125-132 deg.C is delivered.
Description
The present invention relates to a kind of spray urine long-distance delivery method and system thereof that produces urea-base compound fertilizer.
Producing urea-base compound fertilizer with urine spray is a kind of technology that generally adopts during composite fertilizer produces, this technology is to melt after finished urea is transported to the production scene, carries out the production of composite fertilizer then through the pump pressure sprinkling pelleting.The defective of this production technology is that investment is big, the energy consumption height, and in melting process, increased the content of objectionable constituent biuret in the chemical fertilizer inevitably.
The object of the present invention is to provide a kind of spray urine long-distance delivery method and delivery system of producing urea-base compound fertilizer, industrial synthetic urine is delivered directly to the production scene of composite fertilizer.
For achieving the above object, technical program of the present invention lies in providing a kind of spray urine long-distance delivery method of producing urea-base compound fertilizer, urine is at concentration 92%-99.7%, is transferred under 125 ℃ of-132 ℃ of states of temperature.
Accordingly, the present invention has also provided the system that realizes this method, this system is made of urine insulation delivery pipeline system and urine concentration Controlling System, the urine concentration Controlling System is by motor-driven control valve, flow sensor, setter, the diluent injection pump constitutes, go here and there first section that is contained in urine insulation delivery pipeline system before and after motor-driven control valve and the flow sensor, the injection mouth of pipe of diluent injection pump is connected on the urine pipeline of the urine insulation delivery pipeline system after the flow sensor, and setter is by the switch degree of access flow signal of sensor control motor-driven control valve and the motor speed of diluent injection pump.
Urine insulation delivery pipeline system is reverse jacketed type insulation pipeline, the urine pipeline periphery of the main center of this pipeline is enclosed with the steam insulation chuck, between parallel steam-pipe and the water of condensation conduit of being provided with in the next door of main body, steam-pipe and water of condensation conduit and steam insulation chuck respectively by being connected with condensed water discharge pipe along the equally distributed steam access tube of the direction of lay.
Described steam insulation chuck is confessed one's crime to tail is separated into segmental structure, and the stem of each section is communicated with described steam access tube, and the afterbody of each section is communicated with condensed water discharge pipe.
Described setter is controlled the motor speed of diluent injection pump by frequency transformer.
Described diluent injection pump is a ram pump.
Be communicated with mediation steam access tube by stopping valve on the urine pipeline before the described motor-driven control valve.
The urine transportation concentration that the urine concentration Controlling System is set is between 92-99.7%.
Vapor pressure in the described steam-pipe is between 0.25-0.3mpa.
The outlet of described water of condensation conduit feeds a hot water tank, and the inlet of the tail pipe of ram pump also feeds this hot water tank.
From technique scheme as can be seen, the present invention carries under specific temperature and concentration, can guarantee that the smoothness of urine is carried, and can guarantee that the content of biuret in course of conveying can not increase substantially simultaneously.
In the urine concentration Controlling System of delivery system of the present invention, be 99.7% urine flow, guaranteed the stable of composite fertilizer's prescription with the direct controlling concn of electromagnetic flow transducer.The magnetic flow meter induced signal is by the switch degree of setter control motor-driven control valve, isochronous governor is by the rotating speed of frequency transformer electrodeless variable-speed control piston pump motor, guarantee with being consistent to the former amount of urine of urine pipeline inflow and the diluting water of the corresponding proportion that configures in a flash, carry urine concentration stable thereby make, guaranteed the manufacturing technique requirent of conveying and composite fertilizer.
The diluent technology because ram pump top hole pressure and system pressure maintenance balance, employing ram pump are annotated in 99.7% urine can prevent that urine from refluxing, and guarantees the continuity of water filling, thereby has guaranteed the continuous conveying of 92-99.7% urine.
In the course of conveying of urine, can lose the part heat, temperature reduces, in order to prevent the urine crystallization, blocking pipe, delivery system of the present invention adopts reverse chuck insulation measure, in insulation jacket, feed steam segmentation correspondence again from tail to head section and discharge water of condensation, guarantee the constant temperature conveying, made each segment temperature substantially constant, avoided urine cooling blocking pipe.
Also adopt steam condensate (water) as dilution liquid among the present invention, directly add in the urine pipeline urine is diluted, because it is approaching to steam the temperature and the 99.7% urine temperature of phlegma, can not cause urine cooling blocking pipe because of water filling, the two is mixed in proportion, can reconcile urine concentration, produce needs to adapt to composite fertilizer.
Utilize urine directly to introduce complex production system, can save the granulation of granular urea, saved granulation, packing, transportation and crushing cost usefulness, expense of saving nearly hundred yuan per ton has reduced the production cost of composite fertilizer significantly.
The present invention also has obvious energy-saving effect, utilize the heat heating granulation material in the urine, can save a large amount of steam and oven dry heat energy, it is compound to utilize urine directly to spray, also saved in a large number, but also solved the problem that the Biuret Content that causes therefrom increases effectively urea granules second-heating fused heat.
Utilize the cohesiveness of urine itself, can produce formula for a product and be difficult for the granulated composite fertilizer of reuniting, and stopping composition can improve, solved the product that tower granulation can not be produced, the returning charge rate is reduced to 35% by original 65%, and the urea-base compound fertilizer nutrient of producing with this mode be evenly distributed smooth surface, uniform particles, granule strength is big, and the market competitiveness improves greatly.
This technology centering, little urea plant are adjusted the product mix, and reduce investment, and the good technical guarantee is provided.
Below in conjunction with accompanying drawing carrying method of the present invention and system are made further explanation:
Fig. 1 is the structural representation of delivery system of the present invention;
Fig. 2 is the structural representation of the main body of urine insulation delivery pipeline system.
The main body L of urine insulation delivery pipeline system among Fig. 2
7The periphery of the urine pipeline 1 at center is enclosed with steam insulation chuck 2, main body L
7The next door parallel laying insulation steam-pipe L is arranged
3With steam condensate conduit L
4, pass through along main body L respectively between cold doubtful liquid conduit of steam-pipe and steam and the insulation jacket 2
7The uniform steam access tube 3 of the direction of laying is connected main body L with condensate draining pipe 4
7Take that segmentation is heated, the sectional splint nested structure of district drainage, the stem of every section chuck is by steam access tube 3 and steam-pipe L
3Connect, the afterbody of every section chuck is by the condensate collector tube road L of condensed water discharge pipe 4 and its below
4Link to each other steam-pipe L
3In steam flow take flow direction from Caudad head, the vapor pressure in the steam-pipe is controlled between the 0.25-0.3mpa.
The main body L of urine insulation delivery pipeline system among Fig. 1
7Urine pipeline 1 head end by after serial connection magnetic flow meter FIQ, motor-driven control valve DC and the manual modulation valve HC with urine pipeline L from the urine Melting pump
1Be connected.
From urine pipeline L
1Effusive urine concentration is 99.7% high concentration urea stoste, in order to make the urine concentration in the long distance conveying adjustable, need to inject diluent in urine pipeline 1, in order to keep carrying the stable of urine concentration, the present invention controls by the urine concentration Controlling System.The urine concentration Controlling System is made of Electromagnetic Flow FIQ, motor-driven control valve DC, setter A and ram pump B, the signal input of setter A links to each other with the induction output of magnetic flow meter, the output of setter can guarantee that by the rotating speed of motor of control motorized adjustment threshold switch degree and ram pump the urine concentration of carrying in the urine pipeline 1 is stabilized on certain suitable numerical value that configures in the middle of the 92-99.7%.Among the present invention, setter can make the control of urine concentration that precision and stability are preferably arranged by the rotating speed of control of conversion device D electrodeless variable-speed control ram pump B, and the outlet of ram pump B is by pipeline L
6Mode and urine pipeline 1 with tangential injection are communicated with.
Among the present invention, diluent adopts steam condensate.The temperature of the temperature of steam condensate and the urine of conveying is close, in order to the dilution urine, can not cause the crystallisation by cooling of urine, thereby the present invention passes through pipeline L with the pump orifice of ram pump B
8Feed suction phlegma in the hot water tank C.Build up by steam condensate conduit L in the hot water tank C
4With other pipeline L
5The steam condensate that flows into.
In actual use, system wants routine preventive maintenance, at this moment, needs in time to discharge the urine of accumulating in the urine pipeline, in order to avoid crystallisation by cooling.System of the present invention is communicated with mediation steam access tube L by stopping valve between the motor-driven control valve DC of urine pipeline initial part position and manual modulation valve HC
2, blow out urine with steam, mediation urine pipeline.
Claims (10)
1, a kind of spray urine long-distance delivery method of producing urea-base compound fertilizer is characterized in that, urine is transferred under 125 ℃ of-132 ℃ of states of temperature at concentration 92%-99.7%.
2, a kind of spray urine length of urea-base compound fertilizer of producing is apart from delivery system, it is characterized in that, this system is made of urine insulation delivery pipeline system and urine concentration Controlling System, the urine concentration Controlling System is by motor-driven control valve, flow sensor, setter, the diluent injection pump constitutes, go here and there first section that is contained in urine insulation delivery pipeline system before and after motor-driven control valve and the flow sensor, the injection mouth of pipe of diluent injection pump is connected on the urine pipeline of the urine insulation delivery pipeline system after the flow sensor, and setter is by the switch degree of access flow signal of sensor control motor-driven control valve and the motor speed of diluent injection pump.
3, delivery system according to claim 2, the urine pipeline periphery that it is characterized in that the main center of urine insulation delivery pipeline system is enclosed with the steam insulation chuck, between parallel steam-pipe and the water of condensation conduit of being provided with in the next door of main body, steam-pipe and water of condensation conduit and steam insulation chuck respectively by being connected with condensed water discharge pipe along the equally distributed steam access tube of the direction of lay.
4, delivery system according to claim 3 is characterized in that described steam insulation chuck is confessed one's crime to tail to be separated into segmental structure that the stem of each section is communicated with described steam access tube, and the afterbody of each section is communicated with condensed water discharge pipe.
5, delivery system according to claim 4 is characterized in that described setter controls the motor speed of diluent injection pump by frequency transformer.
6, delivery system according to claim 5 is characterized in that described diluent injection pump is a ram pump.
7, delivery system according to claim 6 is characterized in that being communicated with mediation steam access tube by stopping valve on the preceding urine pipeline of described motor-driven control valve.
8, delivery system according to claim 7, the urine transportation concentration that it is characterized in that the setting of urine concentration Controlling System is between 92-99.7%.
9, delivery system according to claim 8 is characterized in that vapor pressure in the described steam-pipe is between 0.25-0.3mpa.
10, delivery system according to claim 9 is characterized in that the outlet of described water of condensation conduit feeds a hot water tank, and the inlet of the tail pipe of ram pump also feeds this hot water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00108451 CN1325834A (en) | 2000-05-25 | 2000-05-25 | Long-distance delivery method and system for urine used to prepare urea-base compound fertilizer by spraying it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00108451 CN1325834A (en) | 2000-05-25 | 2000-05-25 | Long-distance delivery method and system for urine used to prepare urea-base compound fertilizer by spraying it |
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| Publication Number | Publication Date |
|---|---|
| CN1325834A true CN1325834A (en) | 2001-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00108451 Pending CN1325834A (en) | 2000-05-25 | 2000-05-25 | Long-distance delivery method and system for urine used to prepare urea-base compound fertilizer by spraying it |
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|---|---|
| CN (1) | CN1325834A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449878A (en) * | 2013-08-06 | 2013-12-18 | 深圳市芭田生态工程股份有限公司 | Method for lowering biuret content in high-tower granulated compound fertilizer and production facility thereof |
| CN104089184A (en) * | 2014-06-26 | 2014-10-08 | 安徽淮化股份有限公司 | Method and device for preventing urea conveying pipeline from corrosion and crystallization in production of urea ammonium nitrate solution |
-
2000
- 2000-05-25 CN CN 00108451 patent/CN1325834A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449878A (en) * | 2013-08-06 | 2013-12-18 | 深圳市芭田生态工程股份有限公司 | Method for lowering biuret content in high-tower granulated compound fertilizer and production facility thereof |
| CN103449878B (en) * | 2013-08-06 | 2014-12-10 | 深圳市芭田生态工程股份有限公司 | Method for lowering biuret content in high-tower granulated compound fertilizer and production facility thereof |
| CN104089184A (en) * | 2014-06-26 | 2014-10-08 | 安徽淮化股份有限公司 | Method and device for preventing urea conveying pipeline from corrosion and crystallization in production of urea ammonium nitrate solution |
| CN104089184B (en) * | 2014-06-26 | 2017-06-20 | 安徽淮化股份有限公司 | It is a kind of to prevent the corrosion of urea feed-line and the method and apparatus for crystallizing in the production of urea ammonium nitrate solution |
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