CN103319227B - Continuous production method of granular humic acid urea and activation reactor - Google Patents
Continuous production method of granular humic acid urea and activation reactor Download PDFInfo
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Abstract
The invention relates to a continuous production method of granular humic acid urea and an activation reactor. The method comprises the following steps of: mixing granular urea and decomposed coal or brown coal with a catalyst; performing activation reaction on the mixture in the activation reactor; and cooling, crushing and prilling to prepare the granular humic acid urea fertilizer. A heat transfer jacket is arranged between an inner tank body and an outer tank body of the activation reactor. The tank body is internally provided with three stirring shafts. Interlayers are arranged on the side walls of the stirring shafts. Each spiral blade is internally of a hollow structure. Heat transfer oil is filled in the heat transfer jacket, the heat transfer interlayers and the hollow structures of the spiral blades. According to the invention, the process is short in reaction time, the activation reactor is heated adequately and uniformly, and urea is not crushed or melted, so that the energy consumption of whole production is greatly reduced.
Description
Technical field
The present invention relates to a kind of method utilizing weathered coal or brown coal and urea reaction continuous seepage to prepare granular humic acid urea, belong to agricultural fertilizer production technical field.
Background technology
China is Fertilizer application big country, and urea is one of topmost nitrogenous fertilizer, and annual urea production is about fifty-five million ton, domestic use amount about 4,300 ten thousand tons.But the utilization rate of urea in farmland is low, is only 30%-35%, part nitrogen with ammonia, nitrous oxide form volatilization or with the form leaching loss of nitrate to underground water, cause environmental pollution and the wasting of resources.
For improving the utilization ratio of nitrogen in urea, scholars have carried out large quantifier elimination, have developed technological means and the method for fertilizer utilization efficiency in multiple raising urea.There is the complex reactions such as complexing, hydrogen bond association, ion-exchange, physical-chemical absorption under certain conditions in urea and humic acid, form organic complex salt and Carbonyl addition thing, inhibitory action is had to urease activity and nitrobacteria activity, suppress the rapid conversion loss of urea, improve the utilization ratio of urea.Containing a large amount of carbon in humic acid, the organic crumb structures of humic acid component to soil such as fulvic acid wherein, humic acid, fulvic acid are formed with facilitation, effectively improve the content of organic matter of soil simultaneously, promote that soil fertility promotes.Therefore utilize humic acid and urea reaction to produce the humic acid nitrogenous fertilizer of activation, the nitrogen use efficiency improving urea improves farmland quality simultaneously, and tool is of great significance.
Chinese patent CN1376652A, CN1283600A disclose the production method of humic acid coated urea.The method is that humic acid is wrapped in urea granules surface, and the contact area of humic acid and urea is little, and the two does not react substantially, can not reach the effect of humic acid activation and nitrogen fertilizer slow-releasing.Chinese patent CN102260112A, CN102584498A disclose and utilize fusing urea and humic acid to react the method for producing humic acid urea.The method utilizes fusing urea, and its limitation is that this production must be docked with urea production process, too high according to this rule energy consumption in the area away from factory that makes urea, is not suitable for large-scale production.Chinese patent CN102153424A, CN1169975A, CN102260111A, CN102249814A disclose the reaction condition of urea and complexing humic acid and produce the process of fertilizer; the way that these several patents adopt is that the two is fully carried out Separation of Solid and Liquid after reaction and adds or do not add other raw materials again and make fertilizer; because Separation of Solid and Liquid process energy consumption is too high, be not suitable for large-scale production application.Chinese patent CN1887819A, CN1580005A disclose urea and humic acid fertilizer manufacture, the method of these two patents is the two directly mixing, add other raw material granulations again, therebetween react, simply mix composting process, wherein the effect of humic acid is difficult to play, and effectively can not promote the utilization ratio of nitrogen in urea.Chinese patent CN102964174A discloses the consersion unit of a kind of urea and humic acid.This equipment applying steam heats, and be difficult to realize stable temperature control, have influence on the optimum response effect of humic acid urea, adopt two spiral propellers, production efficiency is lower.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of continuous producing method of granular humic acid urea.
The present invention also provides a kind of activated reactor preparing granular humic acid urea.
Technical scheme of the present invention is as follows:
A continuous producing method for granular humic acid urea, comprise use activated reactor, step is as follows:
(1) mixed material is prepared
Weathered coal or brown coal are pulverized, cross 120 ~ 200 mesh sieves, in mass ratio the weathered coal after sieving or brown coal and granular urea, solid catalyst are fully uniformly mixed, and then spraying liquid catalyst, be uniformly mixed immediately, obtain mixed material, described weathered coal or brown coal: granular urea: solid catalyst: the mass ratio of liquid catalyst is: (15 ~ 60): (45 ~ 80): (1 ~ 8): (2 ~ 8);
(2) priming reaction
Open activated reactor, described activated reactor is the horizontal tank body having heat transfer medium chuck of band auger, and helical blade is hollow-core construction and communicates with the heat transfer interlayer of shaft, to the heat-transferring jacket of activated reactor tank body, conduction oil is passed in the hollow-core construction of helical blade and heat transfer interlayer, the temperature of described conduction oil is 90 ~ 130 ゜ C, the rotating speed of the shaft of adjustment activated reactor, each agitator shaft speed is made to control at 15 ~ 40 revs/min, when temperature in reactor tank body to be activated rises to 80 ~ 120 ゜ C, mixed material obtained for step (1) is delivered in activated reactor tank body from the charging aperture of described activated reactor and carries out priming reaction, mixed material after priming reaction is exported by discharging opening with shaft screw propulsion, obtained activation material block,
(3) cool
It is 30 ~ 50 DEG C that the activation material block that step (2) is obtained is cooled to temperature;
(4) pulverizing, granulation
Cooled activation material block is delivered to pulverizing in pulverizer, sieves, and obtaining granularity is 30 ~ 100 object semi-finished product; Semi-finished product are sent into granulation in rotating disk or rotary drum granulator, form the particle of granularity 2 ~ 5.6mm, water content 2 ~ 10wt%, obtain granular humic acid urea.
The present invention is preferred, and described solid catalyst is carbonic hydroammonium powder.
The present invention is preferred, and described liquid catalyst is sodium hydroxide solution or potassium hydroxide solution, and the mass concentration of described sodium hydroxide solution or potassium hydroxide solution is 10% ~ 40%.
The present invention is preferred, weathered coal or brown coal described in step (1): granular urea: solid catalyst: the mass ratio of liquid catalyst is: (30 ~ 50): (50 ~ 60): (2 ~ 6): (4 ~ 8).
The present invention is preferred, weathered coal or brown coal, granular urea and solid catalyst is sent into and mix with in the material mixer of shower nozzle in step (1).Material mixer is existing equipment.
The present invention is preferred, and the activated reactor described in step (2) establishes 3 shafts, and during priming reaction, the rotating speed of these 3 shafts is all identical, is 25 ~ 35 revs/min.
The present invention is preferred, and the cooling of described step (3) activation material block cools in the long distance conveyer belt of activation material block feeding 50 ~ 100m or fluid bed.More than 2 or 2 need be equipped with according to fluid bed cooling and switch cooling in turn, guarantee to realize continuous seepage.
The particle diameter of granular urea of the present invention is best within the scope of 0.85 ~ 8.0mm.
Granular humic acid urea of the present invention is as various crop base manure or use of topdressing.
The present invention also provides the activated reactor in a kind of granular humic acid urea preparation process:
Described activated reactor comprises closed horizontal tank body and motor, described horizontal tank body comprises interior tank body and outer tank body, cavity between interior tank body and outer tank body is heat-transferring jacket, conduction oil is filled in heat-transferring jacket, the sidewall of outer tank body is provided with oil-in be connected with heat-transferring jacket with oil-out, the sidewall of outer tank body is also provided with charging aperture be connected with interior tank interior respectively with discharging opening, 3 shafts are provided with in interior tank body, shaft is driven by motor, the sidewall of described shaft is inside and outside two-layer, cavity between inside and outside two-layer sidewall is heat transfer interlayer, the outer surface of each shaft is surrounded with helical blade, helical blade is boring structure, described heat transfer interlayer is connected with helical blade hollow-core construction, the two ends of shaft are respectively equipped with the shaft oil-in and shaft oil-out that are connected with the interlayer that conducts heat, all conduction oil is filled in heat transfer interlayer and helical blade hollow-core construction.
The present invention is preferred, and 3 described shafts are in triangular arranged in interior tank body, and the spacing between adjacent two shafts is 230 ~ 300mm.
Preferred further, the race diameter of described helical blade is 240 ~ 260mm.
Preferred further, the helical blade outer rim on each shaft and the minimum spacing between interior tank body are 80 ~ 120mm.3 shafts of activated reactor are triangular arranged in interior tank body, and helical blade outer rim on each shaft and the minimum spacing between interior tank body are 80 ~ 120mm, make material stirring more evenly, fully, material and catalyst mix even, catalyst fully contacts with material, improve priming reaction efficiency, decrease the priming reaction time, avoid material in tank body, go out dead angle simultaneously, react an incomplete difficult problem, the material after priming reaction discharges tank body by the synergy screw propulsion of 3 shafts.
The present invention is preferred, and described tank body long 3500 ~ 4500mm, the internal diameter 800 ~ 920mm of interior tank body, between interior tank body and outer tank body, spacing is 40 ~ 80mm.
Described charging aperture is arranged on the top of outer tank body, discharging opening arranges the bottom of outer tank body, horizontal range 3200 ~ 4200mm between charging aperture and discharging opening, described oil-in is positioned at the bottom of outer tank body, oil-out is positioned at the top of outer tank body, and the horizontal range between oil-in and oil-out is 3300 ~ 4300mm.The advantage of this kind of design is, utilizes whole length of spiral propeller as far as possible, makes mixed material utilize priming reaction space to greatest extent.Material can not only utilize the heat energy of activated reactor inner space, also by directly directly contacting with inwall, spiral, axis thermal source, realizes short time being heated with fast reaction speed higher than interior space temperature.
The present invention is preferred, and described helical blade extends to the other end of shaft continuously from one end of shaft, 3 described shafts all with the center parallel of interior tank body.
Described outer tank body is carbon steel material, and interior tank body, the heat transfer shell body of interlayer, shaft and helical blade are stainless steel.
All fill conduction oil in the hollow-core construction of heat-transferring jacket of the present invention, helical blade and heat transfer interlayer, conduction oil provides reaction temperature for priming reaction and has heat insulation function.
Activated reactor overall structure of the present invention is little, and fully, can realize homogeneous heating in the short time, the thermal efficiency is high for material and heating element contacts.
Feed particles urea of the present invention, weathered coal or brown coal and catalyst priming reaction in activated reactor, cooling, pulverizing, granulation, make graininess humic acid urea fertilizer, activated reactor heating-up temperature of the present invention is uniform and stable, the priming reaction time is short, can realize successive reaction, sufficient reacting and activation thoroughly, efficient, save the reaction time of whole production process, greatly reduce energy consumption.
Beneficial effect of the present invention:
1, the raw material such as method catalyst of the present invention is easy to get, and catalytic reaction is effective, has the function of activation humic acid simultaneously.Catalyst added in the mixing of materials stage, realized homogeneous catalyst, did not need increase equipment in production procedure, energy-saving and cost-reducing.The reaction of catalysis humic acid and urea while activator activation humic acid.Catalyst makes humic acid polymer be separated into oligomer or monomer, humic acid is made to be cracked into Small molecular, humic acid after activation can with urea reaction, there is the physical and chemical adsorption reactions such as ion-exchange, hydrogen bond association, radical reaction, reach ideal response effect, a small amount of humic acid having neither part nor lot in reaction is also in activated state.
2, preparation technology's reaction time of the present invention is short, sufficient reacting, and urea, without the need to pulverizing or melting, greatly reduces energy consumption.Urea melted and participated in reaction in course of reaction generally at 2-4 minute reaction time, without the need to increasing the high energy consumption process of urea pulverizing or melting.
3, production equipment of the present invention is simple, and energy consumption is low, is easy to grafting in common fertilizer is produced.Utilize common fertilizer to produce rotary drum used or rotary table granulation production line basis, be equipped with activated reactor, the quick production of humic acid urea can be realized.This production technology realizes production fast, technique is simple, equipment investment is few, production process energy consumption is low, production capacity is high, and free from environmental pollution.
4, activated reactor small investment of the present invention, take up an area little, heating-up temperature is uniform and stable, can realize successive reaction.Fast reaction and the continuous seepage of humic acid and urea can be realized.Sandwich and minor radius reactor can make material rapid temperature increases fully reacting at stable temperature at short notice, and in material propelling movement process, complete priming reaction, production efficiency is high simultaneously.Adopt heat-conducting oil heating stable temperature control, energy consumption is low.Activated reactor adopts three shafts, and the outer surface of each heat transfer interlayer is surrounded with helical blade, and three shafts are assembled with in unit, improves production capacity, reduces equipment and takes up an area.
5, the invention provides a kind of granular humic acid urea product and provide the production technology of improvement; oil bath activated reactor of the present invention and integral production line equipment needed thereby and process, can provide complete technical support for the large-scale production of granular humic acid urea.
6, the granular humic acid urea that the present invention obtains can control the rate of release of nitrogen nutrition, controls the fast decoupled of urea, and the ammonia loss that minimizing urea decomposition causes and nitrate nitrogen, to the leaching loss of underground water, improve the utilization ratio of Nitrogen Resource.The activation humic acid simultaneously provided promotes for soil fertility and improves Water and fertilizer retention ability of soil has positive role, the humic acid urea of gained of the present invention is granular product, can effectively cooperative mechanical farming operate, convenient transportation, has broad application prospects in production.
Accompanying drawing explanation
Fig. 1 is activated reactor sectional structure schematic diagram of the present invention;
Fig. 2 is the side-looking structural representation of activated reactor;
Fig. 3 is shaft and helical blade schematic diagram.Wherein, 1, shaft, 2, outer tank body, 3, oil-in, 4, oil-out, 5, helical blade, 6, charging aperture, 7, discharging opening, 8, shaft oil-out, 9, shaft oil-in, 10, base support, 11, heat transfer interlayer, 12, the hollow-core construction of helical blade.
Fig. 4 is granular humic acid urea production process schematic diagram of the present invention; Wherein, 1. material mixer, 2. elevator, 3. hopper, 4. activated reactor, 5. fertilizer cooler or long distance conveyer belt, 6. pulverizer, 7. conveyer belt, 8. rotating disk or rotary drum granulator, 9. vibratory sieve, 10. packing machine.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described, but be not limited thereto.
Weathered coal in embodiment or brown coal powder, granular urea are commercial products.The equipment used in embodiment:
Material mixer be Zhengzhou, henan Rui Heng Machinery Manufacturing Co., Ltd. sell with material mixer trade name product sold.Pulverizer be Longchang, Hengshui granulation of fertilizer Machinery Co., Ltd. sell with FN type urea disintegrator trade name product sold.Fertilizer cooler be Changzhou Hu Bang drying equipment Co., Ltd sell with cooling bed trade name product sold.Tumbling disk granulator is that east, Tai'an drying equipment Manufacturing Co., Ltd is with pan-type pelletizer trade name product sold.Rotary drum granulator is that Longchang, Hengshui granulation of fertilizer Machinery Co., Ltd. is with rotary drum leopard board comminutor trade name product sold.
Embodiment 1:
A kind of activated reactor, structure is as Fig. 1, Fig. 2, shown in Fig. 3, comprise closed horizontal tank body and motor, closed horizontal tank body is arranged on base support 10, horizontal tank body comprises interior tank body and outer tank body 2, cavity between interior tank body and outer tank body is heat-transferring jacket, conduction oil is filled in heat-transferring jacket, the sidewall of outer tank body 2 is provided with oil-in 3 be connected with heat-transferring jacket with oil-out 4, the sidewall of outer tank body 2 is also provided with charging aperture 6 be connected with interior tank interior respectively with discharging opening 7, 3 shafts 1 are provided with in interior tank body, shaft 1 is driven by motor, the sidewall of each shaft 1 is inside and outside two-layer, cavity between inside and outside two-layer sidewall is heat transfer interlayer 11, the outer surface of each shaft is surrounded with helical blade 5, helical blade 5 extends to the other end of shaft 1 continuously from one end of shaft 1, 3 shafts all with the center parallel of interior tank body, helical blade 5 is boring structure, heat transfer interlayer 11 is connected with the hollow-core construction 12 of helical blade, shaft 1 two ends are respectively equipped with the shaft oil-in 9 and shaft oil-out 8 that are connected with the interlayer 11 that conducts heat, all conduction oil is filled in heat transfer interlayer 11 with the hollow-core construction 12 of helical blade.Charging aperture 6 is arranged on the top of outer tank body 2, discharging opening 7 arranges the bottom of outer tank body 2, horizontal range 3800mm between charging aperture 6 and discharging opening 7, and oil-in 3 is positioned at the bottom of outer tank body 2, oil-out 4 is positioned at the top of outer tank body 2, and the horizontal range between oil-in 3 and oil-out 4 is 4000mm.
3 described shafts 1 are in triangular arranged in interior tank body, and the spacing between adjacent two shafts is 250mm.The race diameter of helical blade is 250mm.Helical blade outer rim on each shaft and the minimum spacing between interior tank body are 100mm.
Outer tank body 2 is carbon steel material, and interior tank body, the heat transfer shell body of interlayer, shaft and helical blade are stainless steel.The long 4000mm of closed horizontal tank body, the internal diameter 900mm of interior tank body, between interior tank body and outer tank body, spacing is 60mm.
Embodiment 2:
A kind of activated reactor, structure is with shown in embodiment 1, and difference is:
Charging aperture 6 is arranged on the top of outer tank body 2, discharging opening 7 arranges the bottom of outer tank body 2, horizontal range 4200mm between charging aperture 6 and discharging opening 7, and oil-in 3 is positioned at the bottom of outer tank body 2, oil-out 4 is positioned at the top of outer tank body 2, and the horizontal range between oil-in 3 and oil-out 4 is 4300mm.
3 described shafts 1 are in triangular arranged in interior tank body, and the spacing between adjacent two shafts is 250mm.The race diameter of helical blade is 260mm.Helical blade outer rim on each shaft and the minimum spacing between interior tank body are 120mm.
The long 4500mm of closed horizontal tank body, the internal diameter 920mm of interior tank body, between interior tank body and outer tank body, spacing is 80mm.
Embodiment 3:
A continuous producing method for granular humic acid urea, comprise the activated reactor used described in embodiment 1, step is as follows:
(1) liquid catalyst is prepared
Raw material is composed as follows by weight: 20 parts, potassium hydroxide, 80 parts, water.Potassium hydroxide is dissolved in the water, is prepared into potassium hydroxide solution.
(2) mixed material is prepared
Brown coal are pulverized through pulverizer, cross 150 mesh sieves, brown coal after sieving and granular urea, carbonic hydroammonium powder are delivered in material mixer and are fully uniformly mixed, and then spray potassium hydroxide solution, be uniformly mixed immediately, obtain mixed material, described raw material is composed as follows by weight: 33 parts, brown coal, 57 parts, urea, 6 parts, carbonic hydroammonium powder, potassium hydroxide solution 4 parts.
(3) activated reactor is opened, to the heat-transferring jacket of activated reactor tank body, conduction oil is passed in the hollow-core construction of helical blade and heat transfer interlayer, the temperature of described conduction oil is 130 ゜ C, the rotating speed of 3 shafts of adjustment activated reactor, each agitator shaft speed is made to control at 30 revs/min, temperature in reactor tank body to be activated rises to 120 ゜ C, then mixed material is promoted to feed bin, through feed bin, mixed material is delivered to priming reaction in activated reactor tank body from the charging aperture of activated reactor, mixed material after priming reaction is exported by discharging opening with shaft screw propulsion, obtained activation material block.
(4) cool in activation material block feeding cooling bed.
(5) cooled activation material block is delivered to pulverizing in pulverizer, sieves, and obtaining granularity is 100 object semi-finished product.
(6) semi-finished product are sent into granulation in pan-type pelletizer, form the particle of granularity 2 ~ 5.6mm, water content 2 ~ 10wt%, through packing machine packaging, obtained granular humic acid urea.
Humic acid urea production procedure is see Fig. 4.
Embodiment 4:
A continuous producing method for granular humic acid urea, comprise the activated reactor used described in embodiment 2, step is as follows:
(1) liquid catalyst is prepared
Raw material is composed as follows by weight: 15 parts, potassium hydroxide, 85 parts, water.Potassium hydroxide is dissolved in the water, is prepared into potassium hydroxide solution.
(2) mixed material is prepared
Brown coal are pulverized through pulverizer, cross 180 mesh sieves, brown coal after sieving and granular urea, carbonic hydroammonium powder are delivered in material mixer and are fully uniformly mixed, and then spray potassium hydroxide solution, be uniformly mixed immediately, obtain mixed material, described raw material is composed as follows by weight: 45 parts, brown coal, 45 parts, urea, 4 parts, carbonic hydroammonium powder, potassium hydroxide solution 6 parts.
(3) activated reactor is opened, to the heat-transferring jacket of activated reactor tank body, conduction oil is passed in the hollow-core construction of helical blade and the heat transfer interlayer of shaft, the temperature of described conduction oil is 120 DEG C, the rotating speed of 3 shafts of adjustment activated reactor, each agitator shaft speed is made to control at 40 revs/min, temperature in reactor tank body to be activated rises to 110 DEG C, then mixed material is promoted to feed bin, through feed bin, mixed material is delivered to priming reaction in activated reactor tank body from the charging aperture of activated reactor, mixed material after priming reaction is exported by discharging opening with shaft screw propulsion, obtained activation material block.
(4) activation material block is sent into the long distance conveyer belt cooling of 50 ~ 100m.
(5) cooled activation material block is delivered to pulverizing in pulverizer, sieves, and obtaining granularity is 100 object semi-finished product.
(6) semi-finished product are sent into granulation in rotary drum granulator, form the particle of granularity 2 ~ 5.6mm, water content 2 ~ 10wt%, through packing machine packaging, obtained granular humic acid urea.
Embodiment 5:
The preparation method of granular humic acid urea as described in Example 4, difference is:
(1) liquid catalyst is prepared
Raw material is composed as follows by weight: 10 parts, NaOH, 90 parts, water.NaOH is dissolved in the water, is prepared into sodium hydroxide solution.
(2) mixed material is prepared
Weathered coal is pulverized through pulverizer, cross 180 mesh sieves, brown coal after sieving and granular urea, carbonic hydroammonium powder are delivered in material mixer and are fully uniformly mixed, and then spray potassium hydroxide solution, be uniformly mixed immediately, obtain mixed material, described raw material is composed as follows by weight: weathered coal 45 parts, 45 parts, urea, 2 parts, carbonic hydroammonium powder, sodium hydroxide solution 8 parts.
Granular humic acid urea product effect test prepared by the present invention.
Test example 1: the effect of humic acid urea on potato
This is tested and carried out in 2008, and test site is township of king stockaded village, Liaocheng City Shenxian County, and test is treated to 2, repeats for 3 times, experimental plot area 100m
2.Supplying to study thing is potato, is humic acid urea and simple blend thereof for examination fertilizer, and two process phosphorus potash fertilizer kinds are identical with consumption.The fertilizer that test process 1 is used is the fertilizer by above embodiment 5 pulp furnish, raw material being carried out to simple blending, and the fertilizer that process 2 is used is the humic acid urea fertilizer produced by the formula of embodiment 5.Examination humic acid urea fertilizer amount is supplied to be 450kg/hm
2, after results, meter is carried out to potato and produces and calculate situation of Profit, in table 1.
Table 1 applies fertilizer the impact on potato yield and income
Potato result of the test shows, application humic acid urea comparatively waits raw material but blended product without priming reaction process is compared, and potato yield increases by 9.69%, and net earnings increases by 9.75%, and per hectare increases income 10690 yuan.The effect of increasing income is remarkable.
Test example 2: the effect of humic acid urea on garlic
This is tested and carried out in 2007 ~ 2008 years, and test site is joyous cities and towns, Weishan County, and test is treated to 2, repeats for 3 times, experimental plot area 100m
2, being garlic for studying thing, is humic acid urea and simple blend thereof for examination fertilizer, and two process phosphorus potash fertilizer kinds are identical with consumption.The fertilizer that test process 1 is used is the fertilizer by above embodiment 5 pulp furnish, raw material being carried out to simple blending, and the fertilizer that process 2 is used is the humic acid urea fertilizer produced by the formula of embodiment 5.Examination humic acid urea fertilizer amount is supplied to be 450kg/hm
2.Result of the test is in table 2.
Table 2 applies fertilizer on the impact of Garlic yield, quality and farmland nutrient loss
Garlic result of the test shows, application humic acid urea comparatively waits raw material but blended feedstock product without priming reaction process is compared, garlic stems volume increase 12.58%, head of garlic volume increase 9.77%, in the head of garlic, Allicin Content increases by 14.02%, in garlic stems, soluble sugar content increases by 12.98, and in garlic stems, Vc content increases by 9.36%, and test field nitrogen loss of elements reduces 26.03%.Show that humic acid urea can not only increase Garlic yield, oil recovery enhancement, the loss of Total Nitrogen nutrient can also be reduced simultaneously.Economic benefit and obvious environment benefit.
Claims (7)
1. a continuous producing method for granular humic acid urea, comprises use activated reactor, comprises the steps:
(1) mixed material is prepared
Weathered coal or brown coal are pulverized, cross 120 ~ 200 mesh sieves, in mass ratio the weathered coal after sieving or brown coal and granular urea, solid catalyst are fully uniformly mixed, and then spraying liquid catalyst, be uniformly mixed immediately, obtain mixed material, described weathered coal or brown coal: granular urea: solid catalyst: the mass volume ratio of liquid catalyst is: (15 ~ 60): (45 ~ 80): (1 ~ 8): (2 ~ 8); Described solid catalyst is carbonic hydroammonium powder; Described liquid catalyst is sodium hydroxide solution or potassium hydroxide solution, and the mass concentration of described sodium hydroxide solution or potassium hydroxide solution is 10% ~ 40%;
(2) priming reaction
Open activated reactor, described activated reactor is the horizontal tank body having heat transfer medium chuck of band auger, and helical blade is hollow-core construction and communicates with the heat transfer interlayer of shaft, to the heat-transferring jacket of activated reactor tank body, conduction oil is passed in the hollow-core construction of helical blade and heat transfer interlayer, the temperature of described conduction oil is 90 ~ 130 ゜ C, described activated reactor establishes 3 shafts, during priming reaction, the rotating speed of these 3 shafts is all identical, the rotating speed of 3 shafts of adjustment activated reactor, each agitator shaft speed is made to control at 30 ~ 35 revs/min, temperature in reactor tank body to be activated rises to 80 ~ 120 ゜ C, mixed material step 1) obtained is delivered to priming reaction in activated reactor tank body from the charging aperture of activated reactor, mixed material after priming reaction is exported by discharging opening with shaft screw propulsion, obtained activation material block,
(3) cooling of material block is activated
By step 2) obtained activation material block is sent into the long of 50 ~ 100m and is cooled apart from conveyer belt or fluid bed, until the temperature of activation material block is 30 ~ 50 ゜ C;
(4) pulverizing, granulation
Cooled activation material block is delivered to pulverizing in pulverizer, sieves, and obtaining granularity is 30 ~ 100 object semi-finished product; Semi-finished product are sent into granulation in rotating disk or rotary drum granulator, form the particle of granularity 2 ~ 5.6mm, water content 2 ~ 10wt%, obtain granular humic acid urea.
2. the continuous producing method of granular humic acid urea according to claim 1, it is characterized in that, weathered coal or brown coal described in step (1): granular urea: solid catalyst: the mass ratio of liquid catalyst is: (30 ~ 50): (50 ~ 60): (2 ~ 6): (4 ~ 8).
3. the continuous producing method of granular humic acid urea according to claim 1, is characterized in that, the particle diameter of granular urea is within the scope of 0.85 ~ 8.0mm.
4. the activated reactor in the continuous flow procedure of a granular humic acid urea according to claim 1: described activated reactor comprises closed horizontal tank body and motor, it is characterized in that, described horizontal tank body comprises interior tank body and outer tank body, cavity between interior tank body and outer tank body is heat-transferring jacket, conduction oil is filled in heat-transferring jacket, the sidewall of outer tank body is provided with oil-in be connected with heat-transferring jacket with oil-out, the sidewall of outer tank body is also provided with charging aperture be connected with interior tank interior respectively with discharging opening, 3 shafts are provided with in interior tank body, shaft is driven by motor, the sidewall of described shaft is inside and outside two-layer, cavity between inside and outside two-layer sidewall is heat transfer interlayer, the outer surface of each shaft is surrounded with helical blade, helical blade is boring structure, described heat transfer interlayer is connected with helical blade hollow-core construction, the two ends of shaft are respectively equipped with the shaft oil-in and shaft oil-out that are connected with the interlayer that conducts heat, all conduction oil is filled in heat transfer interlayer and helical blade hollow-core construction.
5. activated reactor according to claim 4, is characterized in that, 3 described shafts are in triangular arranged in interior tank body, and the spacing between adjacent two shafts is 230 ~ 300mm; The race diameter of described helical blade is 240 ~ 260mm, and the helical blade outer rim on each shaft and the minimum spacing between interior tank body are 80 ~ 120mm.
6. activated reactor according to claim 4, it is characterized in that, long 3500 ~ the 4500mm of described tank body, internal diameter 800 ~ the 920mm of interior tank body, between interior tank body and outer tank body, spacing is 40 ~ 80mm, described charging aperture is arranged on the top of outer tank body, discharging opening arranges the bottom of outer tank body, horizontal range 3200 ~ 4200mm between charging aperture and discharging opening, described oil-in is positioned at the bottom of outer tank body, oil-out is positioned at the top of outer tank body, and the horizontal range between oil-in and oil-out is 3300 ~ 4300mm.
7. activated reactor according to claim 4, is characterized in that, described helical blade extends to the other end of shaft continuously from one end of shaft, 3 described shafts all with the center parallel of interior tank body; Described outer tank body is carbon steel material, and interior tank body, the shell body of heat transfer interlayer, shaft are stainless steel.
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| CN105366673A (en) * | 2014-08-21 | 2016-03-02 | 苏州格瑞展泰再生能源有限公司 | Accurately controlled horizontal physical activation reactor and technology thereof |
| CN109650359B (en) * | 2018-12-29 | 2020-07-03 | 广西越洋科技股份有限公司 | Industrial continuous production equipment and method for black phosphorus |
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| CN1302787A (en) * | 2001-02-13 | 2001-07-11 | 辽宁华洋国际工贸总公司 | Process for preparing activated semi-wet composite humic acid fertilizer |
| CN1490282A (en) * | 2002-10-16 | 2004-04-21 | 郭宗恒 | Activated humic acid composite fertilizer and its making method |
| CN101353273A (en) * | 2007-07-25 | 2009-01-28 | 山东九州生物技术开发有限公司 | Humic acid agricultural precise activation technology and use thereof |
| CN202962469U (en) * | 2012-11-01 | 2013-06-05 | 刘峰 | Humic acid lose-polymerized fertilizer reactor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302787A (en) * | 2001-02-13 | 2001-07-11 | 辽宁华洋国际工贸总公司 | Process for preparing activated semi-wet composite humic acid fertilizer |
| CN1490282A (en) * | 2002-10-16 | 2004-04-21 | 郭宗恒 | Activated humic acid composite fertilizer and its making method |
| CN101353273A (en) * | 2007-07-25 | 2009-01-28 | 山东九州生物技术开发有限公司 | Humic acid agricultural precise activation technology and use thereof |
| CN202962469U (en) * | 2012-11-01 | 2013-06-05 | 刘峰 | Humic acid lose-polymerized fertilizer reactor |
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