JPH02139028A - Device for transporting prescribed quantity of liquid chemical - Google Patents
Device for transporting prescribed quantity of liquid chemicalInfo
- Publication number
- JPH02139028A JPH02139028A JP29176588A JP29176588A JPH02139028A JP H02139028 A JPH02139028 A JP H02139028A JP 29176588 A JP29176588 A JP 29176588A JP 29176588 A JP29176588 A JP 29176588A JP H02139028 A JPH02139028 A JP H02139028A
- Authority
- JP
- Japan
- Prior art keywords
- liquid chemical
- reaction
- chemical
- hydrometer
- solenoid valve
- 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.)
- Pending
Links
- 239000000126 substance Substances 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000012546 transfer Methods 0.000 claims description 27
- 230000005484 gravity Effects 0.000 abstract description 16
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007795 chemical reaction product Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 abstract description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 20
- 229910000368 zinc sulfate Inorganic materials 0.000 description 20
- 239000011686 zinc sulphate Substances 0.000 description 20
- 235000009529 zinc sulphate Nutrition 0.000 description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000005083 Zinc sulfide Substances 0.000 description 7
- 229910052984 zinc sulfide Inorganic materials 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、比重変動のある薬液を原料とする反応生成物
の’ＦＪ造工程、たとえば、カラーブラウン管用硫化物
蛍光体の製造工程等で用いる薬液定量移送装置に関する
。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Field of Application) The present invention relates to a 'FJ manufacturing process of a reaction product using a chemical solution with varying specific gravity as a raw material, for example, a sulfide phosphor for color cathode ray tubes. This invention relates to a chemical liquid quantitative transfer device used in manufacturing processes, etc.
（従来の技術）
カラーブラウン管用緑色蛍光体および青色蛍光体は、一
般に硫化物蛍光体と叶ばれるＺｎＳ （硫化亜鉛）を
主原料としている。この２ｎＳは、１ｎｓＯ４（Ｉａ
Ｒ亜鉛）と）１２ｓ（Ｍｔ化水素ガス）との化学反応に
よって生成されるものであり、化学反応式【ユ次のとお
りである。(Prior Art) Green phosphors and blue phosphors for color cathode ray tubes generally use ZnS (zinc sulfide), which is a sulfide phosphor, as the main raw material. This 2nS is 1nsO4(Ia
It is produced by a chemical reaction between R zinc) and ) 12s (Mt hydrogen oxide gas), and the chemical reaction formula is as follows.
ＺｎＳＯ４＋ Ｈ２Ｓ −＊ ＺｎＳ （↓） ＋８２
８０４ −− （１）この（１）式から分かるよう
に、反応の結束、Ｈ２ＳＯ４（硫酸）が副次的に生成さ
れ、この８２３０４は、ＺｎＳの生成材料であるＺｎ５
Ｏ＋の生成材料として回収利用される。化学反応式は次
のとおりである。ZnSO4+ H2S -* ZnS (↓) +82
804 -- (1) As can be seen from this equation (1), H2SO4 (sulfuric acid) is produced as a by-product due to reaction bonding, and this 82304 is a result of Zn5, which is the production material of ZnS.
It is recovered and used as a material for producing O+. The chemical reaction formula is as follows.
ＺｎＯ＋ １（２ＳＯ４−＋ ｚｎｓｏ４ ＋ Ｈ２
Ｏ−−（２）この（２）式の１Ｉ２ｓＯ４には、市販の
濃硫酸と上記の回収硫酸の両方が使用されており、（２
）式のＺｎＳＯ４溶液の比重および濃度は、回収硫酸の
ために変動せざるを得ない。ZnO+ 1(2SO4-+ znso4 + H2
O--(2) Both commercially available concentrated sulfuric acid and the above recovered sulfuric acid are used for 1I2sO4 in formula (2), and (2
) The specific gravity and concentration of the ZnSO4 solution in the formula must vary due to the recovered sulfuric acid.
ここで従来の７ｎＳ０４ ＦＩ液の移送装防を第２図に
′よって説明する。Here, a conventional 7nS04 FI liquid transfer device will be explained with reference to FIG.
１は薬液貯槽で、７ｎＳＯ４溶液２が収容されている。Reference numeral 1 denotes a chemical storage tank in which a 7nSO4 solution 2 is stored.
また、薬液貯槽１の側部の上下部間に液面翳１３が取付
ｔノられ、この液面計３に液位指示マーク４が上下動位
置調節自在に設けられている。Further, a liquid level indicator 13 is attached between the upper and lower sides of the chemical liquid storage tank 1, and a liquid level indicator mark 4 is provided on this liquid level gauge 3 so that its position can be adjusted vertically.
上記薬液貯槽１と反応槽５との間に管路６がＷ：ｃＦｋ
され、この管路６に手動バルブ７およびポンプ８が設け
られている。A pipe line 6 is connected between the chemical solution storage tank 1 and the reaction tank 5 with W:cFk
A manual valve 7 and a pump 8 are provided in this conduit 6.
そうして、ｆ１栗名は、薬液貯槽１からＺｎＳＯ４溶液
２をり゛ンブリングし、図示しない浮標によって比１１
を測定する。次に、移送ハキデープル（ＺｎＳＯ４溶液
の比重と２ｎＳ予定収量から加ＳＯ４溶液の移初槍を求
める一覧表）から、現在の比・Ｆ値およびＺｎＳ予定収
吊でのＺｎＳＯ４の移送量を読み出す。さらに、薬液貯
槽１の液面計３に設けた液位指示マーク４を、予定移送
量分だけ下降させて、移送量目視管理の基準とする。次
に作業者は、手動バルブ７を仝聞にし、ポンプ８を作動
させて、Ｚｎ５Ｏａ溶液２を管路６を通して反応槽５に
移送する。Then, f1 Kurina removes the ZnSO4 solution 2 from the chemical storage tank 1 and uses a buoy (not shown) to raise the ratio to 11.
Measure. Next, the current ratio/F value and the amount of ZnSO4 to be transferred at the scheduled ZnS collection are read out from the transfer table (a table for determining the initial transfer rate of the added SO4 solution from the specific gravity of the ZnSO4 solution and the expected yield of 2nS). Further, the liquid level indicator mark 4 provided on the liquid level gauge 3 of the chemical solution storage tank 1 is lowered by the amount of the planned transfer amount, and this is used as a reference for visual control of the transfer amount. Next, the operator turns on the manual valve 7 and operates the pump 8 to transfer the Zn5Oa solution 2 to the reaction tank 5 through the pipe line 6.
そして、上記の液位指示マーク４の位置に液面計３内の
液位が到達したら、ポンプ８を停止するとともに、手動
バルブ７を閉じて、７口ＳＯ４溶液２の移送を完了し、
反応槽５での反応作業に入る。When the liquid level in the liquid level gauge 3 reaches the position of the liquid level indicator mark 4, the pump 8 is stopped, the manual valve 7 is closed, and the transfer of the 7-port SO4 solution 2 is completed.
Reaction work in reaction tank 5 begins.
（発明が解決しようとする課題） 上記のような移送によると、次のような問題がある。(Problem to be solved by the invention) According to the above-mentioned transfer, there are the following problems.
（１）液面ｉｒｌ ａ内の液位を目視管１！ＬＩするた
め、観測位置の変化によって真値からの誤差を生じやす
い。(1) Visually check the liquid level in the liquid level irl a tube 1! Because LI is used, errors from the true value are likely to occur due to changes in the observation position.
〈２） 作業者は移送中常時液位を観測せず、他の作
；業を並行して実施する場合が多く、目標液位をオーバ
ーすることがある。(2) Workers often perform other tasks at the same time without constantly monitoring the liquid level during transfer, which may result in the liquid level exceeding the target level.
（３） 比重測定に対し、測定者の熟練度および測定
者の違いによる誤差を生じる可能性がある。(3) Errors may occur in specific gravity measurement due to the skill level of the measurer and differences in the measurer.
（４） Ｚ ｎ Ｓ ０４溶液移送場の信頼性が低い
ため、再度反応槽５で比重測定を行ない、１１２Ｓガス
の没入量を決めなくてはならない。(4) Since the reliability of the Z n S 04 solution transfer field is low, it is necessary to measure the specific gravity again in the reaction tank 5 to determine the amount of immersion of the 112S gas.
（５） 同じ＜ １ｎｓＯ４溶液移送φの信頼性が低
いため、予定数ωと実収世のばらつきが大きい。(5) Same < 1ns Because the reliability of O4 solution transfer φ is low, there is a large dispersion between the planned number ω and the actual yield.
本発明は、上記のような問題を改善し、止子変動のある
薬液の移送を定量化し、反応生成物収最を安定化するこ
とを目的と７６ものである。The object of the present invention is to improve the above-mentioned problems, quantify the transfer of a chemical liquid with stopper fluctuations, and stabilize the collection of reaction products.
（課題を解決するための手段）
本発明は、薬液貯槽から反応槽に薬液を宗門移送する装
首であって、上記薬液貯槽と反応＋ｆ’ｆとの間に接続
され薬液を移送する主管路と、この主管路に設けられた
電磁バルブおよび流い計と、上記主管路に上記電磁バル
ブと流債訓との間で並列接続されたバイパス管路と、こ
のバイパス管路に設けられた比重計と、上記比重計から
のデータを基に演算によって移送１ｄを決定し上記主管
路の電磁バルブを制御する演寥ン処し！ｌ装首とを具備
したものである。(Means for Solving the Problems) The present invention provides a headpiece for transferring a chemical solution from a chemical solution storage tank to a reaction tank, and a main pipe connected between the chemical solution storage tank and reaction +f'f for transferring the chemical solution. , a solenoid valve and a flowmeter provided in this main pipe, a bypass pipe connected in parallel between the solenoid valve and the flowmeter in the main pipe, and a specific gravity provided in this bypass pipe. and an operation that determines the transfer 1d by calculation based on the data from the hydrometer and controls the electromagnetic valve of the main pipe! It is equipped with a neck strap.
（作用）
本発明では、薬液の移送にあたって、主管路の電磁バル
ブを間き、薬液貯槽内の薬液を主管路を通して反応槽に
移送するとともに、薬液をバイパス管路を通して比重計
にも通し、この比重調から出力される薬液の比重および
濃度データをも（に、演算によって移送量を決定し、流
量計からの流部Ｖ１ワ値と比較し、所定の移送ｈ）にお
いて主管路の電磁バルブを閉じ、薬液貯槽から反応槽へ
の薬液移送を定もｔ化する。(Function) In the present invention, when transferring the chemical solution, the electromagnetic valve of the main pipe is opened, and the chemical solution in the chemical solution storage tank is transferred to the reaction tank through the main pipe, and the chemical solution is also passed through the hydrometer through the bypass pipe. Based on the specific gravity and concentration data of the chemical solution output from the specific gravity controller, the transfer amount is determined by calculation, and compared with the flow section V1 value from the flow meter, the electromagnetic valve of the main pipe is activated at a predetermined transfer h. Closed, the chemical liquid transfer from the chemical liquid storage tank to the reaction tank is made constant.
（実施例） 以下、本発明の一実施例を第１図を参照して説明する。(Example) An embodiment of the present invention will be described below with reference to FIG.
この実施例は、カラーブラウン管用蛍光体の製造工程に
おいて、薬液貯槽１１からこれに収容した薬液としての
２ｎＳＯ４（硫酸曲鉛）溶液１２を反応槽１３に移送す
るものである。In this embodiment, a 2nSO4 (bent sulfate) solution 12 as a chemical solution stored in a chemical storage tank 11 is transferred to a reaction tank 13 in the manufacturing process of a phosphor for a color cathode ray tube.
上記薬液貯槽１１と反応槽１３との間に、薬液貯槽１１
からＺｎＳＯ４溶液１２を反応Ｗ１１３に定ｈ１移送す
る薬液定量移送装′ｆＩＪ１４が配設されている。この
薬液定置移送装置１４は、上記薬液貯４ｆｖ１１と反応
槽１３との間に主管路１５が接続され、この主管路１５
に第１の電磁バルブ１６、手動バルブ１７および電磁流
量計１８、ざらにポンプ１９が順次設けられている。A chemical liquid storage tank 11 is provided between the chemical liquid storage tank 11 and the reaction tank 13.
A chemical solution quantitative transfer device 'fIJ14 is provided to transfer the ZnSO4 solution 12 from the reaction W113 to the reaction W113 at a constant rate of h1. This chemical liquid stationary transfer device 14 has a main pipe line 15 connected between the chemical liquid storage 4fv11 and the reaction tank 13, and this main pipe line 15
A first electromagnetic valve 16, a manual valve 17, an electromagnetic flowmeter 18, and a pump 19 are provided in this order.
上記主管路１５において上記第１の電磁バルブ１６と手
動バルブ１７との間から、手動バルブ１７と流Ｗ計１８
どの間にバイパス管路２０が接続され、すなわち、主管
路１５に対し電磁バルブ１６と流量計１８との間でバイ
パス管路２０が並ケ１接続され、このバイパス管路２０
に第２の電磁バルブ２１おにびオンライン比重計２２が
設けられている。そして、ＺｎＳＯ４溶液１２が主管路
１５を通る際、バイパス簀路２０にも入り、第２の電磁
バルブ２１および比重計２２を通過して主管路１５に戻
るようになっている。また、上記手動バルブ１７は、こ
の手動バルブ１７の上流側と下流側に差圧を発生させ、
寸なわら、手動バルブ１７を適宜に絞ることによって下
流側が上流側より低圧となり、ＺｎＳＯ４溶液１２を比
重δ１２２に引ぎ込む差圧発生のためのものである。In the main pipe 15, from between the first electromagnetic valve 16 and the manual valve 17, the manual valve 17 and the flow W meter 18
The bypass line 20 is connected between the main line 15, the solenoid valve 16, and the flow meter 18, and the bypass line 20 is
A second electromagnetic valve 21 and an online hydrometer 22 are provided. When the ZnSO4 solution 12 passes through the main pipe 15, it also enters the bypass sump 20, passes through the second electromagnetic valve 21 and the hydrometer 22, and returns to the main pipe 15. Further, the manual valve 17 generates a differential pressure between the upstream side and the downstream side of the manual valve 17,
However, by appropriately restricting the manual valve 17, the pressure on the downstream side becomes lower than that on the upstream side, and this is to generate a differential pressure that draws the ZnSO4 solution 12 to a specific gravity of δ122.
また、上記比重計２２に恒温槽２３が循環バイブ２４に
より連結され、熱媒体の循環により比重計２２に引き込
まれたＺｎＳＯ４溶液１２の濃度を一定に保つようにな
っている。Further, a constant temperature bath 23 is connected to the hydrometer 22 by a circulation vibrator 24, and the concentration of the ZnSO4 solution 12 drawn into the hydrometer 22 is kept constant by circulation of a heat medium.
２５は演律処即装ざで、上記流量計１８ＬＢよび比重計
２２の出力信号を受（）、また、上記第１の電磁バルブ
１６、第２の電磁バルブ２１およびポンプ１９を制御す
る。Reference numeral 25 denotes a performance processor, which receives output signals from the flowmeter 18LB and the hydrometer 22, and also controls the first electromagnetic valve 16, the second electromagnetic valve 21, and the pump 19.
そうして、ＺｎＳＯ４溶液１２の移送にあたっては、薬
液定１１移送装置１４の図丞しない起動スイツブーを作
動すると、ポンプ１９が始動されると同時に、第１の電
磁バルブ１６と第２の電磁バルブ２１が間となり、薬液
貯槽１１内のＺｎＳＯ４溶液１２が主管路１５を通って
反応槽１３に移送される。これと同時に、ＺｎＳＯ４溶
液１２はバイパス管路２０を通って比重話２２にも流れ
る。また、この１ｎｓＯ４溶欣１２の移送が開始される
と同時に、流が計１８が流ｍのカラン１〜を開始する。Then, in order to transfer the ZnSO4 solution 12, when the unillustrated starting switch boot of the chemical liquid constant 11 transfer device 14 is activated, the pump 19 is started and at the same time, the first electromagnetic valve 16 and the second electromagnetic valve 21 are activated. During this period, the ZnSO4 solution 12 in the chemical storage tank 11 is transferred to the reaction tank 13 through the main pipe 15. At the same time, the ZnSO4 solution 12 also flows through the bypass line 20 to the specific gravity pipe 22. Further, at the same time as the transfer of the 1nsO4 melt 12 is started, a flow of 18 in total (m) starts.
この状態ではバイパス管路２０のＺｎＳＯ４溶液１２は
比Ｅｉ−ｉｔ ２２を通って主管路１５に戻っているが
、定時間、すなわち、比重計２２へのＺｎＳＯ４溶液１
２の引き込みが十分に行へねれるまでの時間が経過した
後、第２の電磁バルブ２１が閉じ、比重厚１２２への２
ｎＳＯ４溶液１２の引き込みを完了させると同時に、止
子品１測を開始させる。このｉｔ ？ｌ１ｆｆ開始後、
約２〜３分後、１１測結果および計測比重での濃度デー
タを出力させる。この際、７ｎＳＯａ溶液１２の比重と
歯磨データは、標準値を予め比５３Ｋｆ２２にメモリー
しておき、比重計２２での３１測比重から濃度に換算す
る。In this state, the ZnSO4 solution 12 in the bypass line 20 returns to the main line 15 through the ratio Ei-it 22, but the ZnSO4 solution 12 to the hydrometer 22 is returned to the hydrometer 22 for a fixed time.
After the time has elapsed until the retraction of 2 is sufficiently completed, the second electromagnetic valve 21 closes, and the 2
At the same time as the drawing of the nSO4 solution 12 is completed, the first measurement of the stopper part is started. This it? After starting l1ff,
After about 2 to 3 minutes, the 11 measurement results and concentration data at the measured specific gravity are output. At this time, standard values of the specific gravity of the 7nSOa solution 12 and tooth brushing data are stored in advance as a ratio of 53Kf22, and the specific gravity measured by the hydrometer 22 at 31 is converted into concentration.
演算処理装置２５は、比重計２２からの比重および濃度
データ、演算処理装置２５に定数（変更可能）として入
りしであるＺｎＳＯ４固形換停重（ｆｉ（ＺｎＳ（硫化
亜鉛）の予定収ごから算出したもの）を用いて演０を行
ない、ＺｎＳＯ４溶液１２の必要移送量を求める。この
演算結果と流量計１８の流量積算値を演算終了後常時比
較し、この両者の値が等しくなった時点で第１の電磁バ
ルブ１６を閉じると同時にポンプ１９を停止させる。The arithmetic processing unit 25 calculates the specific gravity and concentration data from the hydrometer 22 and the ZnSO4 solid exchange weight (fi (calculated from each scheduled yield of ZnS (zinc sulfide) Calculate the required transfer amount of ZnSO4 solution 12 by using The pump 19 is stopped at the same time as the first electromagnetic valve 16 is closed.
以上のようにして、薬液貯槽１１か°ら反応槽１３への
ＺｎＳＯ４溶液１２の定ハ移送を行ない、Ｚｎ５（！ｉ
ｉ！１化亜鉛）の収量を安定化することができる。As described above, the ZnSO4 solution 12 is constantly transferred from the chemical storage tank 11 to the reaction tank 13, and Zn5(!i
i! The yield of zinc monoxide) can be stabilized.
反応槽１３では、移送されたＺｎＳＯ４溶液１２にさら
に純水が加えられ、その後、反応ガスのＨｚＳが投入さ
れて反応を開始する。ここで、）＋２ｓＩ７）投入量は
、移送されて来た１ｎｓＯ４溶液１２のＺｎＳＯ４ｎＳ
Ｏ４固形換算重工決定されるものであり、ＺｎＳＯ４溶
液１２の移送量を定量化することにより、２ｎＳＯ４固
形換算正■が一定となり、Ｈ２Ｓの投入■および微量添
加剤の投入ｍを一定化することができる。In the reaction tank 13, pure water is further added to the transferred ZnSO4 solution 12, and then a reaction gas of HzS is introduced to start the reaction. Here, )+2sI7) The amount of input is 1nsO4 solution 12 ZnSO4nS that has been transferred.
By quantifying the transferred amount of ZnSO4 solution 12, the 2nSO4 solid equivalent can be made constant, and the input of H2S and trace additive m can be made constant. can.
本発明によれば、比重の変動する薬液を、反応後の生成
物予定型６ｔに対し定ｈｔ的に移送させることができ、
したがって、上記薬液を原ｒ１とする反応生成物収量が
安定し、たとえば、カラーブラウン管用硫化物蛍光体の
１原料となるＺｎ５（ｌｉＱ化亜鉛亜鉛収６１を安定化
づることができ、さらに、反応に要するガスおよび微量
添加剤の投入量を一定化でき、ガスおよび微？１１添加
剤投入の自ｖノ化が容易に可能となる。According to the present invention, a chemical solution whose specific gravity varies can be transferred at a constant temperature to the expected product type 6t after the reaction,
Therefore, the yield of the reaction product using the above chemical solution as raw material r1 is stabilized, and for example, the yield of Zn5(liQ zinc oxide), which is one raw material of the sulfide phosphor for color cathode ray tubes, can be stabilized. The amount of gas and small amount of additives required for this can be made constant, and it is possible to easily adjust the amount of gas and small amount of additives to be introduced automatically.
第１図は本発明の哀詩の一実施例を示すブロツク図、第
２図は従来の装置を示すブロック図である。
１１・・薬液貯槽、１２・・薬液としてのＺｎＳＯ４溶
液、１３・・反応槽、１４・・薬液定寸移送装置、１！
ｒ・・主管路、１６・・電磁バルブ、１８・・流ｍ計、
２０・・バイパス管路、２２・・比重計、２５・・演算
処理装ｒ０FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional device. 11... Chemical solution storage tank, 12... ZnSO4 solution as a chemical solution, 13... Reaction tank, 14... Chemical solution sizing transfer device, 1!
r...Main pipeline, 16...Solenoid valve, 18...Flow meter,
20... Bypass pipe line, 22... Hydrometer, 25... Arithmetic processing unit r0
Claims (1)
あって、 上記薬液貯槽と反応槽との間に接続され薬液を移送する
主管路と、 この主管路に設けられた電磁バルブおよび流量計と、 上記主管路に上記電磁バルブと流量計との間で並列接続
されたバイパス管路と、 このバイパス管路に設けられた比重計と、 上記比重計からのデータを基に演算によって移送量を決
定し上記主管路の電磁バルブを制御する演算処理装置と
、 を具備したことを特徴とする薬液定量移送装置。(1) A device for quantitatively transferring a chemical liquid from a chemical liquid storage tank to a reaction tank, which includes a main pipe connected between the chemical liquid storage tank and the reaction tank to transfer the chemical liquid, and a solenoid valve and a flow rate provided in the main pipe. a bypass pipe connected in parallel to the main pipe between the electromagnetic valve and the flowmeter; a hydrometer installed in the bypass pipe; A chemical liquid quantitative transfer device comprising: a calculation processing device that determines the amount and controls the electromagnetic valve of the main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29176588A JPH02139028A (en) | 1988-11-18 | 1988-11-18 | Device for transporting prescribed quantity of liquid chemical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29176588A JPH02139028A (en) | 1988-11-18 | 1988-11-18 | Device for transporting prescribed quantity of liquid chemical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02139028A true JPH02139028A (en) | 1990-05-29 |
Family
ID=17773129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29176588A Pending JPH02139028A (en) | 1988-11-18 | 1988-11-18 | Device for transporting prescribed quantity of liquid chemical |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02139028A (en) |
-
1988
- 1988-11-18 JP JP29176588A patent/JPH02139028A/en active Pending
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