JPH0417895B2 - - Google Patents
Info
- Publication number
- JPH0417895B2 JPH0417895B2 JP20742386A JP20742386A JPH0417895B2 JP H0417895 B2 JPH0417895 B2 JP H0417895B2 JP 20742386 A JP20742386 A JP 20742386A JP 20742386 A JP20742386 A JP 20742386A JP H0417895 B2 JPH0417895 B2 JP H0417895B2
- Authority
- JP
- Japan
- Prior art keywords
- ammonium sulfate
- sieve
- chemical conversion
- product
- crusher
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 45
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 45
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 45
- 239000000126 substance Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 238000013329 compounding Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 description 14
- 235000013339 cereals Nutrition 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012261 overproduction Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fertilizers (AREA)
Description
【発明の詳細な説明】
《産業上の利用分野》
この発明は、従来需要がなく溶解して再結晶せ
しめていた大粒硫安の処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a method for treating large ammonium sulfate, which has conventionally been dissolved and recrystallized for lack of demand.
《従来の技術》
国内における硫安の需給は、生産過剰で国内需
要の余剰分は輸出されている。しかし、機械を用
いて粒状のリン、カリ成分とバラ状のままで任意
に、しかも迅速に配合して施肥する方法に使用さ
れるバルクブレンド用の粒状硫安は、球状、米粒
状、サイコロ状の形状が要求され、生産量が少な
く国内では常に不足している状況にある。<<Prior art>> The supply and demand of ammonium sulfate in Japan is due to overproduction, and the surplus of domestic demand is exported. However, granular ammonium sulfate for bulk blending, which is used for fertilizing by arbitrarily and rapidly combining granular phosphorus and potassium components in bulk form using a machine, is not suitable for fertilization in the form of spheres, rice grains, or dices. Due to the required shape and low production volume, there is always a shortage in Japan.
上記バルクブレンド用以外に一般に市販されて
いる肥料用硫安としては、単肥用（大粒、中粒、
細粒）、配合用、化成用がある。しかし、大きな
粒径が要求されるのは、バルクブレンド用、単肥
用大粒であるが、これらの最大粒径は４mmまで
で、４mm以上の大粒の硫安は、使用されることな
く分別後溶解して再結晶せしめていた。 In addition to the above-mentioned bulk blends, ammonium sulfate for fertilizers that are commercially available include single fertilizers (large grains, medium grains,
There are three types: fine grain), compounding, and chemical forming. However, large particles for bulk blending and single fertilizer use are required to have a large particle size, but the maximum particle size for these is up to 4 mm, and large ammonium sulfate particles of 4 mm or more are not used and are dissolved after separation. It was then recrystallized.
特に最近では、国内におけるバルクブレンド用
硫安の需要に対応すべく、結晶槽で結晶を大きく
成長せしめ、バルクブレンド用硫安の得率を上昇
させている。これに伴い４mm以上の大粒の硫安の
得率も上昇し、これを溶解して再結晶せしめるの
は、極めて不経済である。 In particular, recently, in order to meet the domestic demand for ammonium sulfate for bulk blending, crystals have been grown to a large size in a crystallization tank to increase the yield of ammonium sulfate for bulk blending. Along with this, the yield of ammonium sulfate in large particles of 4 mm or more increases, and it is extremely uneconomical to melt and recrystallize the ammonium sulfate.
一方、上記大粒硫安を粉砕し、配合用、化成用
に改質処理することも考えられるが、粉砕機に供
給される大粒硫安の温度は、乾燥後篩別されたま
まであるため、約80℃程度あり、これがため、各
シユートパイプ内で蒸発した水分が冷却して凝縮
し、浮遊微粉硫安と結合して各シユートパイプ壁
面に付着し、これを閉塞せしめ運転が不可能とな
る。 On the other hand, it is also possible to crush the large-grained ammonium sulfate and modify it for compounding or chemical conversion, but the temperature of the large-grained ammonium sulfate supplied to the pulverizer remains sieved after drying, so the temperature is approximately 80°C. As a result, the water evaporated in each shute pipe cools and condenses, combines with floating fine ammonium sulfate, and adheres to the wall surface of each shute pipe, clogging it and making operation impossible.
《発明の目的》
この発明の目的は、従来溶解して再結晶せしめ
ていた粒径４mm以上の大粒硫安を、配合用およ
び／または化成用に改質処理できる大粒硫安の処
理方法を提供することである。<<Objective of the Invention>> The object of the present invention is to provide a method for processing large ammonium sulfate, which can modify large ammonium sulfate with a particle size of 4 mm or more, which was conventionally melted and recrystallized, for use in blending and/or chemical conversion. It is.
《発明の詳細》
本発明者等は、粒径４mm以上の大粒の硫安を配
合用、化成用に改質すべく種々試験研究の結果、
各シユートパイプに集塵機を連結すると共に、ユ
ーラスバイブレータを設置することにより、この
閉塞問題を解消できることを見い出し、この発明
に想到した。<<Details of the invention>> As a result of various tests and researches, the present inventors have found that large-grain ammonium sulfate with a particle size of 4 mm or more can be modified for use in compounding and chemical conversion.
The inventors discovered that this clogging problem could be solved by connecting a dust collector to each shute pipe and installing a Uras vibrator, and came up with the present invention.
すなわちこの発明は、粒径４mm以上の大粒硫安
の排出ラインに粉砕機と篩を設け、各シユートパ
イプにバイブレータを設置すると共に、吸引管を
介して集塵機と連結し、大粒硫安を粉砕・篩別し
て篩上を粉砕機に循環し、篩下を配合用および／
または化成用硫安として回収することを特徴とす
る大粒硫安の処理方法である。 That is, in this invention, a crusher and a sieve are installed in the discharge line of large ammonium sulfate with a particle size of 4 mm or more, a vibrator is installed in each shute pipe, and it is connected to a dust collector via a suction pipe to crush and sieve the large ammonium sulfate. The upper part is circulated to the crusher, and the lower part is used for blending and/or
Alternatively, it is a method for treating large ammonium sulfate, which is characterized by recovering it as ammonium sulfate for chemical conversion.
この発明においては、従来溶解して再結晶せし
めていた粒径４mm以上の大粒硫安を粉砕・篩別
し、配合用および／または化成用として製品化し
たので、溶解して再結晶する必要がなく、極めて
経済的であり、しかも、前記粉砕・篩別に伴う各
シユートパイプの閉塞もなく運転することができ
る等の効果を有する。 In this invention, large ammonium sulfate with a particle size of 4 mm or more, which was conventionally melted and recrystallized, is crushed and sieved and made into a product for compounding and/or chemical conversion, so there is no need to melt and recrystallize it. This method is extremely economical, and has the advantage that it can be operated without clogging of the chute pipes associated with the crushing and sieving process.
なお、粉砕、篩別して配合用として回収する
か、あるいは化成用として回収するかは、その時
点での需要により決定すればよく、回収する種類
に応じて篩網の網目の大きさ、ならびに粉砕機の
ロールに間隔を変更すればよい。 It should be noted that whether to crush and sieve and collect for compounding or for chemical use can be determined depending on the demand at the time. All you have to do is change the interval to .
以下にこの発明の詳細を実施の一例を示す図面
により説明する。 The details of this invention will be explained below with reference to the drawings showing an example of implementation.
図面は、大粒硫安を化成用に改質する場合の実
施に使用する装置を示すものである。 The drawing shows an apparatus used for reforming large grain ammonium sulfate for chemical conversion.
図示しない結晶槽から遠心分離機、乾燥機を経
て送り出された製品硫安１は、一次振動篩２に供
給され、４mm以上の大粒硫安３、下段篩下産物の
化成用４および配合用・バルクブレンド用５に篩
別される。配合用・バルクブレンド用５は、図示
しない篩により、別途配合用とバルクブレンド用
に篩別される。 Product ammonium sulfate 1 sent out from a crystallization tank (not shown) via a centrifuge and dryer is supplied to a primary vibrating sieve 2, where it is supplied with large particles of ammonium sulfate of 4 mm or more, 4 for chemical conversion of the product under the lower sieve, and 4 for compounding/bulk blending. It is sieved into 5 parts. The blending/bulk blending 5 is separately sieved into blending and bulk blending by a sieve (not shown).
粒径４mm以上の大粒硫安３は、ホツパー６を介
し粉砕機７に供給され、粉砕されてスクリユーコ
ンベア８により振動篩９に導入される。振動篩９
は、上段に20メツシユ、下段に80メツシユの篩を
有しており、上段篩の篩上産物は、スクリユーコ
ンベア１０により粉砕機７に循環され、下段篩の
篩上産物は、化成用１１として回収され、篩下産
物は、微粉ライン１２により図示しない溶解槽を
経て結晶槽に循環される。 Large ammonium sulfate 3 having a particle size of 4 mm or more is supplied to a crusher 7 via a hopper 6, crushed, and introduced into a vibrating screen 9 by a screw conveyor 8. Vibrating sieve 9
The sieve has 20 mesh sieves in the upper stage and 80 mesh sieves in the lower stage, and the sieve product from the upper sieve is circulated to the crusher 7 by the screw conveyor 10, and the sieve product from the lower sieve is sent to the chemical sieve 11. The unsieved product is circulated through the fine powder line 12 to the crystallization tank via a dissolution tank (not shown).
上記ホツパー６、粉砕機７、振動篩９の各シユ
ートパイプは、サイクロン１３とパイプにより接
続され、ブロワ１４を介し洗浄塔１に連結され、
各シユートパイプ内の浮遊微粉硫安を含む湿潤空
気は、吸引されてサイクロン１３で微粉が分離さ
れたのち、洗浄塔１５に導入され、洗浄塔１５内
で洗浄液１６により洗浄されて清浄化され大気中
に放出される。 The shute pipes of the hopper 6, crusher 7, and vibrating sieve 9 are connected to the cyclone 13 by pipes, and are connected to the washing tower 1 via the blower 14.
The humid air containing suspended fine ammonium sulfate in each shute pipe is sucked in and the fine powder is separated by a cyclone 13, and then introduced into a cleaning tower 15, where it is washed and purified by a cleaning liquid 16 and released into the atmosphere. released.
微粉硫安を吸収した洗浄液は、ドレンピツド１
７に排出され、図示しない結晶槽に循環される。 The cleaning solution that has absorbed fine powdered ammonium sulfate is drained into drain pit 1.
7 and circulated to a crystallization tank (not shown).
また、ホツパー６および粉砕機７、振動篩９の
各シユートパイプには、それぞれユーラスバイブ
レータ１８が設けられており、図示しない乾燥機
から供給されて一次振動篩２に供給され、上段篩
上産物として得られる約80℃程度の粒径４mm以上
の大粒硫安３から蒸発し、自然冷却して凝縮した
水分が浮遊微粉硫安と結合し、ホツパー６や各シ
ユートパイプに付着するが、ユーラスバイブレー
タ１８およびブロワ１４による排気の吸引とによ
り、付着が防止され、長期間の連続運転が可能と
なる。 Further, each of the shute pipes of the hopper 6, the crusher 7, and the vibrating sieve 9 is provided with a Uras vibrator 18, and is supplied from a dryer (not shown) to the primary vibrating sieve 2, and is obtained as a product on the upper sieve. The moisture that evaporates from the large ammonium sulfate 3 with a particle diameter of 4 mm or more at about 80℃, cools naturally, and condenses, combines with the floating fine ammonium sulfate and adheres to the hopper 6 and each chute pipe, but the Uras vibrator 18 and blower 14 By suctioning the exhaust gas, adhesion is prevented and long-term continuous operation is possible.
一方回収される化成用硫安１１は、化成用の製
品硫安として市販に値するものであり、粒径４mm
以上の大粒硫安２の殆どを化成用として回収でき
る。 On the other hand, ammonium sulfate 11 for chemical conversion that is recovered is worthy of being marketed as a product for chemical conversion, and has a particle size of 4 mm.
Most of the large ammonium sulfate 2 mentioned above can be recovered for chemical conversion.
したがつて、従来の溶解して再結晶していた大
粒硫安を製品として有効に販売できる。 Therefore, large-grained ammonium sulfate, which was conventionally melted and recrystallized, can be effectively sold as a product.
《実施例》
前記図示の装置の一次振動篩で分別された粒径
４mm以上の大粒硫安0.3t／hrを、ロール間距離１
mmのダブルロールクラツシヤーにより、上段20メ
ツシユ、下段80メツシユの振動篩の上段篩の篩上
産物を循環しながら緩徐に粉砕し、下段篩の篩上
産物0.28t／hrを化成用硫安として回収した。大
粒硫安からの化成用硫安の回収率は、約93％であ
つた。なお、下段篩の篩下産物として分別された
微粒硫安は、0.15t／hrであつた。<<Example>> 0.3 t/hr of large ammonium sulfate with a particle size of 4 mm or more separated by the primary vibrating sieve of the device shown in the figure above was collected at a distance of 1 between the rolls.
A 20-mesh upper sieve and a 80-mesh lower sieve are used to circulate and slowly crush the sieve product from the upper sieve using a 20-mesh double roll crusher, and 0.28 t/hr of the sieve product from the lower sieve is used as ammonium sulfate for chemical conversion. Recovered. The recovery rate of ammonium sulfate for chemical conversion from large grains of ammonium sulfate was approximately 93%. The amount of fine ammonium sulfate separated as a product under the sieve of the lower sieve was 0.15 t/hr.
なお、上記実施例では、大粒硫安を化成用に改
質する場合について説明したが、粉砕機のロール
間隔および振動篩の篩目を変更することにより、
配合用として改質するできるばかりでなく、配合
用、化成用の双方を回収することもできる。 In addition, in the above example, a case was explained in which large ammonium sulfate was modified for chemical conversion, but by changing the roll interval of the crusher and the sieve mesh of the vibrating sieve,
Not only can it be modified for use in blending, but it can also be recovered for both blending and chemical use.
図面は本発明に使用する装置の一例を示す系統
図である。
１…製品硫安、２…一次振動篩、３…大粒硫
安、４…化成用硫安、５…配合用・バルクブレン
ド用硫安、６…ホツパー、７…粉砕機、８，１０
…スクリユーコンベア、９…振動篩、１１…化成
用、１２…微粉ライン、１３…サイクロン、１４
…ブロワ、１５…洗浄塔、１６…洗浄液、１７…
ドレンピツト、１８…ユーラスバイブレータ。
The drawing is a system diagram showing an example of a device used in the present invention. 1...Product ammonium sulfate, 2...Primary vibrating sieve, 3...Large ammonium sulfate, 4...Ammonium sulfate for chemical conversion, 5...Ammonium sulfate for compounding/bulk blending, 6...Hopper, 7...Crusher, 8,10
... Screw conveyor, 9... Vibrating sieve, 11... Chemical use, 12... Fine powder line, 13... Cyclone, 14
...Blower, 15...Cleaning tower, 16...Cleaning liquid, 17...
Drain pit, 18...Uras vibrator.
Claims (1)
機と篩を設け、各シユートパイプにバイブレータ
を配設すると共に、吸引管を介し集塵機に連結
し、大粒硫安を粉砕・篩別して篩上を粉砕機に循
環し、篩下を配合用および／または化成用硫安と
して回収することを特徴とする大粒硫安の処理方
法。1 A crusher and a sieve are installed in the discharge line of large ammonium sulfate with a particle size of 4 mm or more, a vibrator is installed in each shoot pipe, and it is connected to a dust collector via a suction pipe. 1. A method for treating large ammonium sulfate, which is characterized by circulating ammonium sulfate and recovering the undersieve as ammonium sulfate for compounding and/or chemical conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20742386A JPS6364915A (en) | 1986-09-02 | 1986-09-02 | Method for treating ammonium sulfate of large grain size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20742386A JPS6364915A (en) | 1986-09-02 | 1986-09-02 | Method for treating ammonium sulfate of large grain size |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6364915A JPS6364915A (en) | 1988-03-23 |
| JPH0417895B2 true JPH0417895B2 (en) | 1992-03-26 |
Family
ID=16539509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20742386A Granted JPS6364915A (en) | 1986-09-02 | 1986-09-02 | Method for treating ammonium sulfate of large grain size |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6364915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014117130A1 (en) * | 2014-11-24 | 2016-05-25 | Kiesling Maschinentechnik Gmbh | Device for machining a flat workpiece |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101320086B1 (en) * | 2011-10-28 | 2013-10-18 | 현대제철 주식회사 | Apparatus for purifying exhaust gas |
-
1986
- 1986-09-02 JP JP20742386A patent/JPS6364915A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014117130A1 (en) * | 2014-11-24 | 2016-05-25 | Kiesling Maschinentechnik Gmbh | Device for machining a flat workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6364915A (en) | 1988-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8470055B2 (en) | Combined process for preparing calcined soda by applying surface engineering technology to natural soda preparation | |
| EP0491638A2 (en) | Method of making granulated L-lysine | |
| JPH11511071A (en) | Granulation method and apparatus | |
| JPH07505087A (en) | Crystallization method in draft tube baffle crystallizer | |
| CN106477611A (en) | A kind of method preparing precipitated calcium carbonate using carbide slag and flue solid/liquid/gas reactions | |
| CA2629876A1 (en) | Formulation and method of synthesizing karnalyte | |
| WO2001083374A2 (en) | Method for producing calcium nitrate granules | |
| AU2001274357A1 (en) | Method for producing calcium nitrate granules | |
| CN103936466A (en) | Method and device for producing calcium ammonium nitrate | |
| US4099982A (en) | Method of evaporating and spray drying of a sucrose solution | |
| US20030135957A1 (en) | Wet granulation method for generating granules | |
| US4021527A (en) | Production of sodium carbonate | |
| WO2002004351A1 (en) | Method for granulating calcium chloride hydrate and granulation apparatus | |
| JPH0417895B2 (en) | ||
| CN1288084C (en) | Process for producing soft potassium magnesium vanadium | |
| CN1289443C (en) | Method and apparatus for producing calcium ammonium nitrate using by-product calcium nitrate of nitrate phosphatic fertilizer | |
| US2867523A (en) | Ammonium sulfate production | |
| CN105399455B (en) | A kind of system and method using chemical industry tail gas production compound fertilizer | |
| CN203855523U (en) | Preparation device of calcium ammonium nitrate | |
| JPS5983909A (en) | Continuous manufacture of granular calium hypochlorite | |
| JP3322766B2 (en) | Method for producing granulated brown sugar | |
| CN106390855A (en) | Device and method for continuously producing spherical sodium benzoate | |
| CN205462118U (en) | Produce device of granular lithium chloride | |
| CN100384786C (en) | A method for directly preparing potassium and magnesium fertilizer from brine | |
| CN112811964A (en) | Method for preparing secondary element fertilizer by using mother liquor without drying |