CN208545318U - A kind of tower ureaformaldehyde process units of water soluble fertilizer - Google Patents
A kind of tower ureaformaldehyde process units of water soluble fertilizer Download PDFInfo
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- CN208545318U CN208545318U CN201820539526.0U CN201820539526U CN208545318U CN 208545318 U CN208545318 U CN 208545318U CN 201820539526 U CN201820539526 U CN 201820539526U CN 208545318 U CN208545318 U CN 208545318U
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Abstract
A kind of tower ureaformaldehyde process units of water soluble fertilizer, including king-tower, secondary tower, solid material heater, formaldehyde rectifier, buffered formaldehyde tank and formaldehyde reactor, the top of king-tower is successively arranged solid material heater, tower top mixing channel and spray equipment from top to bottom, the lower end exit of the upper end inlet and receiving hopper that convey funnel is accepted, and the lower end exit for conveying funnel is equipped with device for transporting objects I；Secondary tower is equipped with urine buffer slot and elevator, and urine buffer slot output end is connect by device for transporting objects II with tower top mixing channel；Urine buffer slot is connect by formaldehyde reaction pump with formaldehyde reactor, and urine buffer slot is connect by pump with urea molten tank, and urea molten tank is connect by the glutinous urine melt storage tank of drop with formaldehyde reactor；Formaldehyde reactor passes sequentially through, buffered formaldehyde tank, formaldehyde rectifier and formaldehyde pump are connect with formaldehyde storage tank.The utility model process flow is short, and configuration is convenient, and production cost is lower than water soluble fertilizer.
Description
Technical field
The utility model relates to a kind of tower ureaformaldehyde process units, more particularly to the tower ureaformaldehyde production dress of kind water soluble fertilizer
It sets.
Background technique
Water soluble fertilizer has apparent advantage compared with traditional urea, calcium superphosphate, granulated compound fertilizer.It is a kind of speed
Effect property fertilizer, good water solubility, without residue can completely dissolve in water, can directly absorb benefit by the root system of crops and blade face
With.Using liquid manure with applying, with water band fertilizer, water-fertilizer integral is realized, fertilizer efficiency is higher by common chemical fertilizer more than one times, and fertilizer efficiency is fast,
It can solve the nutritional need of high-yield crop fast growing period.Cooperate drip irrigation system fertilising operation almost can not manually, significantly
Human cost is saved.
Water soluble fertilizer production technology is mainly the physics mixture and novel production process technology of lower end.Physics mixture it is water-soluble
Fertilizer manufacturing method is simple, and fertiliser granulates size is inhomogenous, easily produces melting layer and analyses phenomenon, poorly water-soluble, fertigation are inconvenient.
Novel production process mainly has chemical synthesis, and this method granulated pellet is uniform, water-soluble good, is convenient for fertigation.
Chemical synthesis is mainly chemically reacted in the liquid phase, and the solution of single substance is easily mastered, and there are two-phase, three-phases even more
The circulation solution of multiphase just will appear cocrystallization phenomenon during sub-cooled crystallizes, and simply for a bit, that is, produce
Product have been actually formed more complicated double salt in precipitation process, and the nutrient for directly resulting in product N P and K fluctuates, will not
Product is precipitated according to the proportion of imagination.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of tower ureaformaldehyde process units of water soluble fertilizer, it is wrapped
King-tower, secondary tower, solid material heater, formaldehyde rectifier, buffered formaldehyde tank and formaldehyde reactor are included, the top of the king-tower is certainly
Solid material heater, tower top mixing channel and spray equipment are successively arranged under above, it is mixed that solid material heater is connected to tower top
The feeding inlet of slot is closed, the output end of tower top mixing channel is connect with spray equipment；King-tower lower end is equipped with receiving hopper, the upper end of receiving hopper
Inlet is fixedly connected on the inner wall of king-tower, and receiving hopper lower end exit is equipped with conveying funnel, and conveying funnel is fixed on bracket
On, the lower end exit of the upper end inlet and receiving hopper that convey funnel is accepted, and the lower end exit for conveying funnel is equipped with material
Conveying device I；The secondary tower is equipped with urine buffer slot and elevator, and the urine buffer slot output end passes through device for transporting objects
II connect with tower top mixing channel, and the elevator is arranged on the inner wall of secondary tower；The urine buffer slot passes through formaldehyde reaction pump
It is connect with formaldehyde reactor, urine buffer slot is connect by pump with urea molten tank, and the urea molten tank is molten by the glutinous urine of drop
Liquid storage tank is connect with formaldehyde reactor；Formaldehyde reactor passes sequentially through, buffered formaldehyde tank, formaldehyde rectifier and formaldehyde pump and formaldehyde
Storage tank connection.
Compared with the prior art, the utility model has the following advantages: transformation is simple and easy, short time limit is with low investment, technique
Process is short, and configuration is convenient, and production cost is lower than water soluble fertilizer.It is gone after vaporizing containing 2% formaldehyde rectifier tower bottom liquid below
Compound fertilizer workshop is used for compound mixed fertilizer granulating machine after metering, and no exhaust gas and discharge of wastewater belong to clean manufacturing.
Detailed description of the invention
With reference to the accompanying drawing to the further details of explanation of specific embodiment of the present utility model.
Fig. 1 is the process flow chart of the utility model.
In figure: 1-king-tower 2-secondary tower, 3-spray equipment, 4-receiving hopper, 5-tower top, 6-urine buffer of mixing channel
Glutinous urine melt storage tank 10-urea molten tank, the 11-first of 8-device for transporting objects of slot 7-solid material heater I 9-drop
Aldehyde rectifier 12-formaldehyde storage tank 13-device for transporting objects, II 14-elevator, 15-buffered formaldehyde, 16-formaldehyde of tank adds
Depressor 17-formaldehyde pumps 18-formaldehyde reactor 19-formaldehyde reaction pumps.
Specific embodiment
Such as a kind of tower ureaformaldehyde process units of water soluble fertilizer of Fig. 1, it includes king-tower 1, secondary tower 2, solid material heating
Device 7, formaldehyde rectifier 11, buffered formaldehyde tank 15 and formaldehyde reactor 18, the top of king-tower 1 are successively arranged solids from top to bottom
Material heater 7, tower top mixing channel 5 and spray equipment 3, solid material heater 7 are connected to the feeding inlet of tower top mixing channel 5, tower
The output end of top mixing channel 5 is connect with spray equipment 3；1 lower end of king-tower is equipped with receiving hopper 4, and the upper end inlet of receiving hopper 4 is fixed
It is connected on the inner wall of king-tower 1,4 lower end exit of receiving hopper is equipped with conveying funnel, and conveying funnel is fixed on bracket, conveying leakage
The upper end inlet of bucket and the lower end exit of receiving hopper are accepted, and the lower end exit for conveying funnel is equipped with device for transporting objects I
8；Secondary tower 2 be equipped with urine buffer slot 6 and elevator 14,6 output end of urine buffer slot by device for transporting objects II 13 with
Tower top mixing channel 5 connects, and elevator 14 is arranged on the inner wall of secondary tower 2, mixes for promoting urine with monoammonium phosphate, potash fertilizer
Object；Urine buffer slot 6 is connect by formaldehyde reaction pump with formaldehyde reactor 18, and urine buffer slot 6 passes through pump and urea molten tank
10 connections, urea molten tank 10 are connect by the glutinous urine melt storage tank 9 of drop with formaldehyde reactor 18；Formaldehyde reactor 18 passes sequentially through
16, buffered formaldehyde tank 15, formaldehyde rectifier 11 and formaldehyde pump 17 are connect with formaldehyde storage tank 12.
Production process is as follows:
(1) urine that the urea molten tank 10 of fluxing agent 1# is added directly is divided into two parts, a part is delivered directly to
Urine buffer slot 6, a part are transported to the glutinous urine melt storage tank 9 of drop, and thinner, fluxing agent is added in the glutinous urine melt storage tank 9 of drop
2# and diluent reduce the fusing point and viscosity of molten urea solution, the formaldehyde reaction pump 19 then passed to；In formaldehyde reaction pump 19
The formaldehyde vapour that the content of formaldehyde through vaporization concentration is 60%~80% is added in entrance, adjusts the molar ratio of urine and formaldehyde vapour 1.3
Between~1.5, in 110 DEG C~130 DEG C fast reactions in 20 seconds；Reaction product is transported to urine buffer slot 6, subsequently into
Tower top mixing channel 5；
(2) urine and the ureaformaldehyde liquid from formaldehyde reaction pump 19 and the phosphorus from feeding post from urine buffer slot 6
Sour monoammonium and potassium chloride (or potassium sulfate) enter tower top mixing channel 5, mix at 95 DEG C~105 DEG C, after mixing 3~6 minutes, enter
Mixture is uniformly sprayed glomerate droplet by granulation tower spray equipment 3.The droplet fallen from spray equipment 3 is in diameter
It slowly falls in 12m~20m high 80m~130m king-tower 1 and secondary tower 2, is cooled to 45 after exchanging heat with the ascending air in tower
DEG C~65 DEG C, water soluble fertilizer particle is become, drying process is not necessarily to.
(3) compound fertilizer workshop is gone to containing 2% 11 tower bottom liquid of formaldehyde rectifier below after vaporizing, after metering for compound
Fertile pelletizer uses, no exhaust gas and discharge of wastewater.
Urea molten tank 10 controls temperature generally at 105 DEG C ~ 115 DEG C；Due to the addition of Lauxite after reaction, cause to expect
It starches viscosity to increase, due to the addition of Lauxite after reaction, slurry viscosity is caused to increase, after thinner, drop flux is added, urine
Plain 10 temperature of fusion tank is 120 DEG C ~ 125 DEG C, and reactive tank temperature is controlled at 110 DEG C ~ 130 DEG C.
Proved after tower granulation industrial test, during the discrepancy pipe reaction of formaldehyde pressurizer 16, urea with
Formaldehyde reaction optimum mole ratio be 1.3~1.5, reaction optimum temperature be 110 DEG C~115 DEG C, reaction Best Times be 15~
18 seconds；The best pH value of the glutinous urine melt storage tank 9 of drop is 3.5~4, and best mixing time is 3.5~4 minutes；Urea in produced product
Urea formaldehyde activity coefficient AI is highest, reaches 60%~65%.
In water soluble fertilizer production process, thinner and the additional amount for dropping flux want strict control, and additional amount is very few, then
Viscosity is excessively high, and production can not carry out；Additional amount is excessive, then monoammonium phosphate mixing channel is caused to overflow slot, pumps the lost of life.
The pH value of the glutinous urine melt storage tank 9 of drop wants strict control, and the concentrated sulfuric acid can be added when necessary and adjusted.
The above are the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper
It states embodiment to change and modify, therefore, the utility model is not limited to above-mentioned specific embodiment, all abilities
Field technique personnel made any conspicuous improvement, replacement or modification on the basis of the utility model belong to practical
Novel protection scope.
Claims (1)
1. a kind of tower ureaformaldehyde process units of water soluble fertilizer, it is characterised in that: it includes king-tower (1), secondary tower (2), solids
Expect heater (7), formaldehyde rectifier (11), buffered formaldehyde tank (15) and formaldehyde reactor (18), the top of the king-tower (1) is certainly
Solid material heater (7), tower top mixing channel (5) and spray equipment (3), solid material heater (7) are successively arranged under above
It is connected to the feeding inlet of tower top mixing channel (5), the output end of tower top mixing channel (5) is connect with spray equipment (3)；Under king-tower (1)
End is equipped with receiving hopper (4), and the upper end inlet of receiving hopper (4) is fixedly connected on the inner wall of king-tower (1), receiving hopper (4) lower end
Exit be equipped with conveying funnel, conveying funnel be fixed on bracket, convey funnel upper end inlet and receiving hopper under bring out
It is accepted at mouthful, the lower end exit for conveying funnel is equipped with device for transporting objects I (8)；The secondary tower (2) is equipped with urine buffer slot
(6) and elevator (14), urine buffer slot (6) output end pass through device for transporting objects II (13) and tower top mixing channel (5)
Connection, the elevator (14) are arranged on the inner wall of secondary tower (2)；The urine buffer slot (6) passes through formaldehyde reaction pump and first
Aldehyde reaction device (18) connection, urine buffer slot (6) are connect by pump with urea molten tank (10), and the urea molten tank (10) is logical
Glutinous urine melt storage tank (9) of drop is crossed to connect with formaldehyde reactor (18)；Formaldehyde reactor (18) pass sequentially through formaldehyde pressurizer (16),
Buffered formaldehyde tank (15), formaldehyde rectifier (11) and formaldehyde pump (17) are connect with formaldehyde storage tank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539526.0U CN208545318U (en) | 2018-04-17 | 2018-04-17 | A kind of tower ureaformaldehyde process units of water soluble fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539526.0U CN208545318U (en) | 2018-04-17 | 2018-04-17 | A kind of tower ureaformaldehyde process units of water soluble fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208545318U true CN208545318U (en) | 2019-02-26 |
Family
ID=65419775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820539526.0U Active CN208545318U (en) | 2018-04-17 | 2018-04-17 | A kind of tower ureaformaldehyde process units of water soluble fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208545318U (en) |
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2018
- 2018-04-17 CN CN201820539526.0U patent/CN208545318U/en active Active
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