CN109734543A - A kind of production method of Mei Gai boron compound fertilizer - Google Patents
A kind of production method of Mei Gai boron compound fertilizer Download PDFInfo
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- CN109734543A CN109734543A CN201910224917.2A CN201910224917A CN109734543A CN 109734543 A CN109734543 A CN 109734543A CN 201910224917 A CN201910224917 A CN 201910224917A CN 109734543 A CN109734543 A CN 109734543A
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Abstract
The invention discloses a kind of production methods of Mei Gai boron compound fertilizer.It weighs magnesium calcium powder, borax, zinc sulfate, saltpetre ammonium solution, monoammonium phosphate process concentrate, potassium sulfate and ammonium sulfate to be granulated jointly, using high-temperature steam as pelletizer heat source, and controls discharging moisture content and temperature to get required Mei Gai boron compound fertilizer is arrived.The present invention is pioneering to produce Mei Gai boron compound fertilizer by raw material of magnesium calcium powder, not only turns waste into wealth, and avoids the wasting of resources and environmental pollution caused by banking up processing；The middle amount nutrient contained in magnesium calcium powder simultaneously, which can be evenly dispersed into chemical fertilizer, is fully used, and cheap, can significantly reduce chemical fertilizer manufacturing cost.Magnesium calcium powder also has anti-caking agent effect, and final products preventing blocking effect is significant.Products obtained therefrom particle is mellow and full, intensity is big, can improve soil texture, supplements the deficiency of nutrient in soil, and crop equilibration is made to absorb nutrition, improves crop yield, improves crops quality and environmental quality.
Description
Technical field
The invention belongs to composite heat transfer technical fields, and it is main for being specifically related to one kind with common refractory material magnesium calcium powder
The method of raw material production Mei Gai boron compound fertilizer.
Background technique
Phosphorus in traditional common type chemical fertilizer is easily cured by the soil, and influences being absorbed and utilized for crops.Simultaneously because arable land is applied
Fertile mode is not scientific, and chronic administration also will cause being continuously increased for fertilizer amount, can be to environmental concerns.Currently, China is logical
It is seriously superfluous with type fertilizer production, to realize agricultural sustainable development, changing uneven fertilising to soil, atmospheric environment
The problems such as polluting, overcoming soil fertility decline and soil hardening, it is necessary to change the product structure based on general chemical fertilizer, gradually
It is formed based on nitrogen, phosphorus, potassium, the reasonable composite heat transfer pattern of middle microelement match.
But the proportion and nutrient form of existing Common compound fertilizer cannot still meet crop needs well, and utilization rate is lower,
The waste of resource and the energy is caused, peasant burden, pollution of ecological environment are increased.And, it is common to use moderate-element MgSO4﹒
7H2O is due to (purity >=99%) with high purity, and the additive amount in chemical fertilizer is smaller, so that unit effective content is unbalanced.Middle amount member
Plain calcium chloride hygroscopicity is larger, and use easily leads to fertilizer caking, and when production, which also needs specially to add anti-caking agent, to be inhibited；Together
When, MgSO4﹒ 7H2The price of O and calcium chloride is also higher, and each of which increases the manufacturing costs of existing compound fertilizer.The above problem is equal
Constrain the large-scale application of compound fertilizer, constantly research and develop new high-efficiency compound fertilizer to ensure China's food supply have it is very heavy
The meaning wanted.
And on the other hand, the main component of magnesium calcium powder includes MgO 16%~31%, CaO 21%~37%, SiO2
1.16%, Fe2O30.77%, Al2O30.53%.But in the prior art, only a fraction magnesium calcium powder is by as refractory material
It utilizes, a large amount of magnesium calcium powder is then handled often through banking up, but the magnesium calcium powder banked up can flow away with rainwater, cause resource
Huge waste and environmental pollution.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of refractory material magnesium calcium powder production magnesium calcium boron
The method of compound fertilizer makes full use of middle microelement contained in magnesium calcium powder, turns waste into wealth, and reduces composite heat transfer cost, changes
Kind compound fertilizer's efficiency.
The purpose of the present invention is achieved by the following technical programs.
Unless otherwise indicated, percentage of the present invention is mass percent.
A kind of production method of Mei Gai boron compound fertilizer, comprising the following steps:
(1) it weighs by weight in 15.3~219.7 parts of addition pelletizers of magnesium calcium powder；
(2) by 7.6~9.8 parts of boraxs and 3.5~6.7 parts of zinc sulfate and 5.3~8.9 parts 79 DEG C~95 DEG C of temperature of hot water
It is uniformly mixed, controls 74 DEG C~93 DEG C of mixture temperature and is sent into pelletizer；
(3) 361~392 parts of saltpetre ammonium solutions are weighed by weight, and 195~307 parts evaporate from monoammonium phosphate enrichment process
The monoammonium phosphate process concentrate that device is drawn, 164~231 parts of potassium sulfates and 131~194 parts of ammonium sulfate are added common in pelletizer
It is granulated；
(4) using high-temperature steam as pelletizer heat source, steam pressure 0.65MPa~0.83MPa, temperature 135 DEG C~167
DEG C, flow velocity 12m/s~27m/s, 38~79 parts of flow；
(5) control pelletizer discharging moisture content 1.7%~3.5%, 63~81 DEG C of temperature to get multiple to required magnesium calcium boron
Hefei.
Contain magnesia 16%~31%, calcium oxide 21%~37% in the magnesium calcium powder.
The saltpetre ammonium solution concentration is 86%~93%, and monoammonium phosphate process concentrate concentration is 56%~74%.
Compared with prior art, the invention has the following advantages that
1, the present invention is pioneering produces Mei Gai boron compound fertilizer by raw material of magnesium calcium powder.It can not only turn waste into wealth, avoid banking up place
The wasting of resources and environmental pollution caused by reason；Middle amount the nutrient MgO and CaO contained in magnesium calcium powder simultaneously can equably divide
It is scattered in chemical fertilizer and is fully used, and is cheap, can significantly reduce chemical fertilizer manufacturing cost.Magnesium calcium powder also has anti-caking agent work
With final products preventing blocking effect is significant.
2, gained Mei Gai boron compound fertilizer is in granular form, particle >=90% of 2~4mm of granularity, and particle is mellow and full uniformly, is able to satisfy
High crop yield needs, improvement and maintenance of soil fertility situation, the soil caused by compensating because of crop harvest, gaseous volatilization and leaching loss
Nutrient missing.
3, finished product ammonium nitrate is substituted with saltpetre ammonium solution, monoammonium phosphate process concentrate is used to substitute finished product monoammonium phosphate as original
Material saves significantly on production cost, reduces and labours cost, the effective use of energy sources such as stores, has bad luck, feeding.
4, the method for the present invention utilizes magnesium calcium powder efficiently, and gained compound fertilizer can improve soil texture, supplements in soil
The deficiency of nutrient makes crop equilibration absorb nutrition, improves crop yield, improves crops quality and environmental quality.
Specific embodiment
The present invention is done below by embodiment and is further described in detail, but embodiment is not to the technology of the present invention side
The restriction of case, it is all based on present invention teach that the variation or equivalent replacement done are within the scope of protection of the invention.
Embodiment 1
Claim in 15.3 parts of addition pelletizers of magnesium calcium powder by weight；79 DEG C, 5.3 parts hot water of temperature are added in hot water storgae,
By 7.6 parts of boraxs, 3.5 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 74 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 361 parts of ammonium nitrate water by weight
Solution, 195 portions of monoammonium phosphate process concentrates drawn from MAP enrichment process evaporator, 164 parts of potassium sulfates, 131 parts of ammonium sulfate
It is added in pelletizer and is granulated jointly；Using pressure 0.65MPa, 135 DEG C of temperature, flow velocity 12m/s, 38 parts of flow of steam as heat source
It is added in pelletizer and provides heat for material；Pelletizer discharging moisture content 1.7% is controlled, 63 DEG C of temperature required to get arriving
Mei Gai boron compound fertilizer.Containing magnesia 16%, containing calcium oxide 21% in magnesium calcium powder used.Saltpetre ammonium solution concentration is 86%, phosphoric acid
Monoammonium process concentrate concentration is 56%.
Embodiment 2
Claim in 21.6 parts of addition pelletizers of magnesium calcium powder by weight；81 DEG C, 5.9 parts hot water of temperature are added in hot water storgae,
By 8.3 parts of boraxs, 3.9 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 78 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 368 parts of ammonium nitrate water by weight
Solution, 214 portions of monoammonium phosphate process concentrates, 187 parts of potassium sulfates, 146 parts of ammonium sulfate are added in pelletizer to be granulated jointly；It will pressure
Power 0.69MPa, 139 DEG C of temperature, flow velocity 15m/s, 42 parts of flow of steam are added in pelletizer as heat source and provide for material
Heat；It controls pelletizer to discharge moisture content 1.8%, 65 DEG C of temperature is to get arriving required Mei Gai boron compound fertilizer.In magnesium calcium powder used
Containing magnesia 18%, contain calcium oxide 24%.Saltpetre ammonium solution concentration is 87%, and monoammonium phosphate process concentrate concentration is 57%.
Embodiment 3
Claim in 27.8 parts of addition pelletizers of magnesium calcium powder by weight；84 DEG C, 6.4 parts hot water of temperature are added in hot water storgae,
By 8.9 parts of boraxs, 4.3 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 81 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 379 parts of ammonium nitrate water by weight
Solution, 226 portions of monoammonium phosphate process concentrates, 193 parts of potassium sulfates, 161 parts of ammonium sulfate are added in pelletizer to be granulated jointly；It will pressure
Power 0.71MPa, 143 DEG C of temperature, flow velocity 17m/s, 46 parts of flow of steam are added in pelletizer as heat source and provide for material
Heat；Control pelletizer discharge moisture content 2.3%, temperature be 69 DEG C to get arrive required Mei Gai boron compound fertilizer.Magnesium calcium powder used
In contain magnesia 23%, calcium oxide 26%.Saltpetre ammonium solution concentration is 88%, and monoammonium phosphate process concentrate concentration is 58%.
Embodiment 4
Claim in 91.4 parts of addition pelletizers of magnesium calcium powder by weight；87 DEG C, 6.9 parts hot water of temperature are added in hot water storgae,
By 9.1 parts of boraxs, 5.4 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 83 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 382 parts of ammonium nitrate water by weight
Solution, 247 portions of monoammonium phosphate process concentrates, 201 parts of potassium sulfates, 173 parts of ammonium sulfate are added in pelletizer to be granulated jointly；It will pressure
Power 0.75MPa, 152 DEG C of temperature, flow velocity 23m/s, 52 parts of flow of steam are added in pelletizer as heat source and provide for material
Heat；It controls pelletizer to discharge moisture content 2.6%, 72 DEG C of temperature is to get arriving required Mei Gai boron compound fertilizer.In magnesium calcium powder used
Containing magnesia 25%, calcium oxide 28%.Saltpetre ammonium solution concentration is 89%, and monoammonium phosphate process concentrate concentration is 62%.
Embodiment 5
Claim in 132.4 parts of addition pelletizers of magnesium calcium powder by weight；89 DEG C, 7.6 parts hot water of temperature are added in hot water storgae,
By 9.3 parts of boraxs, 5.9 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 86 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 386 parts of ammonium nitrate water by weight
Solution, 273 portions of monoammonium phosphate process concentrates, 214 parts of potassium sulfates, 178 parts of ammonium sulfate are added in pelletizer to be granulated jointly；It will pressure
Power 0.79MPa, 159 DEG C of temperature, flow velocity 24m/s, 65 parts of flow of steam are added in pelletizer as heat source and provide for material
Heat；It controls pelletizer to discharge moisture content 2.9%, 74 DEG C of temperature is to get arriving required Mei Gai boron compound fertilizer.In magnesium calcium powder used
Containing magnesia 27%, calcium oxide 31%.Saltpetre ammonium solution concentration is 90%, and monoammonium phosphate process concentrate concentration is 65%.
Embodiment 6
Claim in 184.2 parts of addition pelletizers of magnesium calcium powder by weight；93 DEG C, 8.3 parts hot water of temperature are added in hot water storgae,
By 9.6 parts of boraxs, 6.3 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 91 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 389 parts of ammonium nitrate water by weight
Solution, 294 portions of monoammonium phosphate process concentrates, 217 parts of potassium sulfates, 186 parts of ammonium sulfate are added in pelletizer to be granulated jointly；It will pressure
Power 0.81MPa, 163 DEG C of temperature, flow velocity 26m/s, 72 parts of flow of steam are added in pelletizer as heat source and provide for material
Heat；It controls pelletizer to discharge moisture content 3.2%, 78 DEG C of temperature is to get arriving required Mei Gai boron compound fertilizer.In magnesium calcium powder used
Containing magnesia 29%, calcium oxide 35%.Saltpetre ammonium solution concentration is 92%, and monoammonium phosphate process concentrate concentration is 71%.
Embodiment 7
Claim in 219.7 parts of addition pelletizers of magnesium calcium powder by weight；95 DEG C, 8.9 parts hot water of temperature are added in hot water storgae,
By 9.8 parts of boraxs, 6.7 parts of zinc sulfate, which are added in hot water storgae to dissolve, to be heated in 93 DEG C of feeding pelletizers, borax, zinc sulfate dissolution
Volume increases in water, is blended in borax, zinc sulfate uniformly in the material of pelletizer；Claim 392 parts of ammonium nitrate water by weight
Solution, 307 portions of monoammonium phosphate process concentrates, 231 parts of potassium sulfates, 194 parts of ammonium sulfate are added in pelletizer to be granulated jointly；It will pressure
Power 0.83MPa, 167 DEG C of temperature, flow velocity 27m/s, 79 parts of flow of steam are added in pelletizer as heat source and provide for material
Heat；It controls pelletizer to discharge moisture content 3.5%, 81 DEG C of temperature is to get arriving required Mei Gai boron compound fertilizer.In magnesium calcium powder used
Containing magnesia 31%, calcium oxide 37%.Saltpetre ammonium solution concentration is 93%, and monoammonium phosphate process concentrate concentration is 74%.
Application Example 1
Mei Gai boron compound fertilizer obtained by Examples 1 to 7 is detected, using commercially available total nutrient >=40% compound fertilizer as pair
According to the results are shown in Table 1.
The detection of 1. magnesium calcium boron complex fertilizer product of table
According to 1 result of table as it can be seen that Mei Gai boron compound fertilizer of the invention has the spies such as particle is mellow and full, intensity is big, nutrient is uniform
Point.Product nutrient formula NPK (20-10-10), product be it is granular, uniform particle is smooth, 2-4mm particles >=90%, fortune
It is defeated, store, apply it is extremely convenient.Quality advance improves the granule strength of product, avoids the generation of agglomeration, storage and
In transportational process, it is rotten that product is not easy dusting, and presentation quality has also obtained certain improvement, becomes more mellow and fuller, light
It is sliding.
Application Example 2
Magnesium calcium of the present invention is applied in Qujing City of Yunnan Province Luliang County slab bridge town on October 13,7 days~2018 May in 2018
Boron compound fertilizer carries out rice cropping comparative experiments.
Experiment condition: 20 mu of rice model fields, paddy field rice transplanting cultivation；Experimental group -- Mei Gai boron of the present invention compound fertilizer 45Kg/
Per acre, control group -- phosphorus compound fertilizer 45Kg/ is per acre.
Survey produce the result shows that, using the wet paddy per mu yield of Mei Gai boron of the present invention compound fertilizer than control volume increase 52.58%, be specifically shown in Table
2。
The effect of increasing production of 2 Mei Gai boron compound fertilizer of table
According to 2 result of table it is found that experimental group paddy wetter than control group rice increases production 447.557Kg, obvious effect of increasing production per acre.
Mei Gai boron of the present invention compound fertilizer can be improved plant to the utilization absorbability of nutrient, be mainly used for grain, vegetables,
The base manure and top dressing of the industrial crops such as fruit tree and ornamental crops.Increase yield and improves the effect of quality.Uniform particle is smooth, supports
Separation structure is balanced comprehensively.Fertilizer efficiency is good, and utilization rate is high, and crop is absorbed and utilized, and application method is flexible；Rich in middle microelement, battalion
It supports comprehensively, use is safe.
Application Example 3
Technique, equipment and Cost comparisons:
1, prior art produces 1 ton of NPK (20-10-10) product, needs 0.31 ton of Diammonium phosphate (DAP), and 0.31 ton × 2500 yuan
=775 (members/t), 0.34 ton of ammonium nitrate, 0.34 ton × 1600 yuan=544 (members/t), 0.295 ton of potassium sulfate, 0.295 ton × 3100
Member=914.5 (members/t), 0.053 ton of MgSO4﹒ 7H2O epsom salt, 0.053 ton × 1000 yuan=53 (members/t), 0.0015 ton
Anti-caking agent, 0.0015 ton × 18000 yuan=27 (members/t), Diammonium phosphate (DAP), ammonium nitrate such as store, have bad luck, feeding at the labours cost 213
Member, in total 775+544+914.5+53+27+213=2526.5 (member/t).Time is 1.5 hours.Produce 10t phosphorus compound fertilizer at
This is 2526.5 yuan × 10=25265 member, and the time is 15 hours.
2, present invention process produces 1 Dun Meigai boron compound fertilizer, needs 0.0278 ton of magnesium calcium powder, 0.0278 ton × 236 yuan=
6.560 (members/t), need 0.0089 ton of Na2B4O7﹒ 10H2The decahydrate of O sodium tetraborate, 0.0089 ton × 4300 yuan=
38.27 (members/t), 0.0043 ton of ZnSO4﹒ 7H2O white vitriol, 0.0043 ton × 3300 yuan=14.19 (members/t), 0.379 ton
Ammonium nitrate solution, 0.379 ton × 1600 yuan=606.4 (members/t), 0.266 ton of monoammonium phosphate concentrate, 0.266 ton × 2980 yuan=
792.68 (members/t), 0.193 ton of potassium sulfate, 0.193 ton × 3100 yuan=598.3 (members/t), 0.161 ton of ammonium sulfate, 0.161 ton
× 650 yuan=104.65 (members/t), 0.046 ton of steam, 0.046 ton × 97 yuan=4.462 yuan/t), 6.560+38.27+ in total
(14.19+606.4+792.68+598.3+104.65+4.462=2165.512 member/t).Time is 0.7 hour.Produce 10t phosphorus
The cost of compound fertilizer is 2165.512 yuan × 10=21655.12 member, and the time is 7 hours.
The two, which is compared, can save 25265 yuan -21655.12 yuan=3609.88 yuan, and the inside and outside of product obtains in quality
Great promotion.Crop easily absorbs, best in quality, and utilization rate is high.Fertilizer efficiency utilization rate is high, widely used.
Claims (3)
1. a kind of production method of Mei Gai boron compound fertilizer, which comprises the following steps:
(1) it weighs by weight in 15.3~219.7 parts of addition pelletizers of magnesium calcium powder；
(2) 7.6~9.8 parts of boraxs and 3.5~6.7 parts of zinc sulfate are mixed with 5.3~8.9 parts 79 DEG C~95 DEG C of temperature of hot water
Uniformly, it controls 74 DEG C~93 DEG C of mixture temperature and is sent into pelletizer；
(3) 361~392 parts of saltpetre ammonium solutions are weighed by weight, and 195~307 parts are drawn from monoammonium phosphate enrichment process evaporator
Monoammonium phosphate process concentrate out, 164~231 parts of potassium sulfates and 131~194 parts of ammonium sulfate are added in pelletizer and make jointly
Grain；
(4) using high-temperature steam as pelletizer heat source, steam pressure 0.65MPa~0.83MPa, 135 DEG C~167 DEG C of temperature, stream
38~79 parts of fast 12m/s~27m/s, flow；
(5) control pelletizer discharging moisture content 1.7%~3.5%, 63~81 DEG C of temperature to get compound to required magnesium calcium boron
Fertilizer.
2. magnesium calcium boron composite fertilizer producing process according to claim 1, it is characterised in that: containing oxidation in the magnesium calcium powder
Magnesium 16%~31% contains calcium oxide 21%~37%.
3. magnesium calcium boron composite fertilizer producing process according to claim 1, it is characterised in that: the saltpetre ammonium solution concentration
It is 86%~93%, monoammonium phosphate process concentrate concentration is 56%~74%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624833A (en) * | 2020-12-29 | 2021-04-09 | 卡力(烟台)农业发展有限公司 | Boron-magnesium fertilizer and preparation method thereof |
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| CN1280972A (en) * | 1999-12-29 | 2001-01-24 | 化学工业部上海化工研究院 | process for preparing high-concentration granular composite N-K fertilizer |
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