JPH01261496A - Method of regulating water content of slurry in production of coal-water slurry - Google Patents
Method of regulating water content of slurry in production of coal-water slurryInfo
- Publication number
- JPH01261496A JPH01261496A JP63090869A JP9086988A JPH01261496A JP H01261496 A JPH01261496 A JP H01261496A JP 63090869 A JP63090869 A JP 63090869A JP 9086988 A JP9086988 A JP 9086988A JP H01261496 A JPH01261496 A JP H01261496A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- water
- coal
- amount
- air stream
- 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.)
- Granted
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 15
- 230000001105 regulatory effect Effects 0.000 title 1
- 239000003245 coal Substances 0.000 claims abstract description 37
- 238000001704 evaporation Methods 0.000 claims abstract description 14
- 230000008020 evaporation Effects 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 10
- 238000010298 pulverizing process Methods 0.000 abstract description 8
- 239000011362 coarse particle Substances 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 3
- 238000001238 wet grinding Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/2135—Humidity, e.g. moisture content
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2218—Weight of at least one component to be mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、高濃度石炭水スラリー製造方法に係り、とく
にスラリー水分を制御するようにした石炭水スラリー製
造方法におけるスラリー水分制御方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a highly concentrated coal-water slurry, and more particularly to a method for controlling slurry moisture in a method for producing a coal-water slurry in which the slurry moisture is controlled.
従来の石炭水スラリー製造方法は、湿式ボールミルを用
い、破砕された石炭を水及び界面活性剤から成る分散剤
と共に湿式粉砕し、スラリー化し、石炭濃度が約６０重
量％以上の石炭水スラリーを製造する。また、湿式粉砕
にさいし粉砕熱により温度上昇した石炭水スラリーを冷
却するため、石炭水スラリー中の粗大粒子を分離除去す
るさい空気流との熱交換するようにすることが提案され
ている（例えば、特開昭６０−８３９３号公報、特開昭
６０−１３８８７号公報、特願昭６１−２１２０１１号
明細書など）。The conventional coal-water slurry production method uses a wet ball mill to wet-mill crushed coal with a dispersant consisting of water and a surfactant to form a slurry, producing a coal-water slurry with a coal concentration of about 60% by weight or more. do. In addition, in order to cool the coal-water slurry whose temperature has risen due to the heat of grinding during wet grinding, it has been proposed to perform heat exchange with an air flow when separating and removing coarse particles in the coal-water slurry (for example, , JP-A-60-8393, JP-A-60-13887, Japanese Patent Application No. 61-212011, etc.).
石炭水スラリー製造にさいし、石炭水スラリーの性状の
うち、水分すなわち石炭濃度が変動するとプロセスに多
くの影響を与える。すなわち、湿式ミルにおける粉砕性
をはじめ、流動性、安定性などの流動特性、さらに、燃
料特性として発熱量ならびに熱効率、バーナにおける微
粒化や燃焼特性などへの著しい影響をあげることができ
る。In the production of coal-water slurry, variations in water content, that is, coal concentration, among the properties of coal-water slurry, have a large effect on the process. That is, it can have a significant influence on the pulverization properties in a wet mill, flow properties such as fluidity and stability, as well as fuel properties such as calorific value and thermal efficiency, atomization in a burner, and combustion properties.
上記の影響を解消するため、従来の石炭水スラリー製造
方法におけるスラリー水分制御方法としては、所要のス
ラリー水分が得られるように湿式ミルへの石炭および水
の供給量を比率制御のもとで調節してそれぞれの供給を
行い、さらに、湿式粉砕過程における石炭水スラリーの
粉砕熱による温度上昇にともなうスラリー水分の蒸発量
に対する補正を手動により行うことによって上記供給量
を調節するようにしていた。また、スラリー水分を工業
的に適用しつるスラリー濃度計などをもちいて測定して
上記の石炭および水の供給量を調節することによりスラ
リー水分制御することも行われていた。To eliminate the above effects, the slurry moisture control method in the conventional coal-water slurry manufacturing method involves adjusting the amount of coal and water supplied to the wet mill under ratio control to obtain the required slurry moisture. In addition, the above-mentioned supply amounts were adjusted by manually correcting the amount of evaporation of slurry moisture due to the temperature rise due to the heat of pulverization of the coal-water slurry during the wet pulverization process. In addition, slurry moisture has also been controlled by measuring the slurry moisture using an industrial slurry concentration meter or the like and adjusting the above-mentioned supply amounts of coal and water.
しかしながら、上記従来の石炭水スラリー製造方法にお
けるスラリー水分制御方法では、オフラインによりスラ
リー水分を測定し、スラリー水分の蒸発量に対する補正
を行ったが、スラリー水分の蒸発量も多数の複雑な変動
要因によって影響を受けるので、上記蒸発量の正確な検
出が困難であるため、正確なスラリー水分を制御するこ
とが困難であった。また、スラリー濃度計などをもちい
てスラリー水分を検出しフィードバック制御により石炭
および水の供給量を調節するとしても、複雑な変動要因
のもとてのプロセスに対して適切なスラリー水分制御が
困難であると言う問題があった。However, in the slurry moisture control method in the conventional coal-water slurry production method described above, the slurry moisture is measured off-line and correction is made for the amount of evaporation of the slurry moisture, but the amount of evaporation of the slurry moisture also depends on many complicated fluctuation factors. Therefore, it is difficult to accurately detect the amount of evaporation, and therefore it is difficult to accurately control the slurry water content. Furthermore, even if slurry moisture is detected using a slurry concentration meter and the amount of coal and water supplied is adjusted through feedback control, it is difficult to control slurry moisture appropriately for the process due to complex fluctuation factors. There was a problem.
本発明はこのような従来の問題を解決するものであり、
スラリー水分の蒸発量を簡易な方法をもちいて確実に決
定し、高い的中率をもって正確なスラリー水分制御をす
ることができる優れた石炭水スラリー製造方法における
スラリー水分制御を提供することを目的とするものであ
る。The present invention solves these conventional problems,
The purpose of the present invention is to provide an excellent method for producing slurry water slurry in which the amount of evaporation of slurry water can be reliably determined using a simple method and accurate slurry water content control can be performed with a high accuracy rate. It is something to do.
本発明は上記目的を達成するために、石炭を湿式ミルに
て水、分散剤と共に湿式粉砕してスラリー化し、粉砕熱
により温度上昇した前記スラリーを空気流により冷却す
名君炭水スラリー製造方法におけるスラリー水分制御方
法であって、スラリーと空気流との接触前後における空
気流の湿度変化を検出して水分蒸発量を演算し、湿式ミ
ルへの水供給量を操作してスラリー水分を制御するよう
にしたものである。In order to achieve the above object, the present invention is a method for producing Meikun coal water slurry, in which coal is wet-pulverized with water and a dispersant in a wet mill to form a slurry, and the slurry, whose temperature has risen due to the heat of crushing, is cooled by air flow. A slurry moisture control method in which the moisture evaporation amount is calculated by detecting the humidity change in the air flow before and after the slurry comes into contact with the air flow, and the slurry moisture is controlled by controlling the amount of water supplied to the wet mill. This is how it was done.
本発明は上記のような構成により次のような作用を有す
る。すなわち、湿式粉砕にともない粉砕熱により温度上
昇したスラリーをその流路を包囲する冷却室において空
気流により冷却し、そのさい、スラリーと空気流との接
触前後における空気流の湿度変化を検出することにより
スラリーの水分蒸発量を演算することができるので、ス
ラリー製品の所要の水分が得られるように、上記水分蒸
発量による補正のもとで、湿式ミルへの水供給量を操作
することにより複雑な変動要因の影響を受けても高い的
中率をもって正確なスラリー水分を制御することが可能
である。The present invention has the following effects due to the above configuration. That is, the slurry whose temperature has increased due to the heat of grinding due to wet grinding is cooled by air flow in a cooling chamber surrounding the flow path, and at that time, the change in humidity of the air flow is detected before and after the slurry comes into contact with the air flow. Since the water evaporation amount of the slurry can be calculated using the above method, the amount of water supplied to the wet mill can be manipulated to obtain the required water content of the slurry product. It is possible to accurately control slurry moisture with a high accuracy even under the influence of various fluctuation factors.
以下、本発明の一実施例を図画について詳細に説明する
。Hereinafter, one embodiment of the present invention will be described in detail with reference to drawings.
第１図は、本発明の実施例に係る構成をしめすものであ
る。FIG. 1 shows a configuration according to an embodiment of the present invention.
第１図において、１は破砕された石炭２を貯留する石炭
貯留槽、３は石炭２を計量給炭する計瓜給炭機、４は石
炭２を水、分散剤と共に湿式粉砕する湿式ボールミルで
ある。５はポンプ６を有する水供給管、８はポンプ９を
有する分散剤供給管で、給水流量調節弁７を介して湿式
ボールミル４の入口に連通されている。１０は湿式ボー
ルミル４により製造されたスラリーをしめし、１１はス
ラリー１０に含まれている石炭の粗大粒子を分離除去す
るための振動篩である。１２は振動篩１１を通過したス
ラリーを空気流により冷却するための冷却室をしめし、
冷却室１２には空気取入口および空気排出口とがそれぞ
れ設けられている。冷却室１２の空気取入口には人口空
気管１３が設けられ、また、空気排出口には出口空気管
２Ｂが設けられている。送風機３０によって冷却室１２
内に空気を流動させるようにしている。２２はスラリー
管をしめし、冷却室１２により冷却されたスラリー２０
はポンプ２１によって次工程に給送される。In Fig. 1, 1 is a coal storage tank that stores crushed coal 2, 3 is a metering coal feeder that feeds coal 2 by metering, and 4 is a wet ball mill that wet-pulverizes coal 2 together with water and a dispersant. be. 5 is a water supply pipe having a pump 6, and 8 is a dispersant supply pipe having a pump 9, which are communicated with the inlet of the wet ball mill 4 via a water supply flow rate control valve 7. Reference numeral 10 indicates a slurry produced by the wet ball mill 4, and reference numeral 11 indicates a vibrating sieve for separating and removing coarse particles of coal contained in the slurry 10. 12 designates a cooling chamber for cooling the slurry that has passed through the vibrating sieve 11 with an air flow;
The cooling chamber 12 is provided with an air inlet and an air outlet, respectively. An artificial air pipe 13 is provided at the air intake of the cooling chamber 12, and an outlet air pipe 2B is provided at the air outlet. Cooling chamber 12 by blower 30
It allows air to flow inside. Reference numeral 22 indicates a slurry pipe, in which the slurry 20 cooled by the cooling chamber 12 is
is fed to the next process by the pump 21.
振動篩１１によって分離された粗大粒子１７は輸送手段
、例えば、ポンプ１８によって給送され、粗大スラリー
１９として再び湿式ボールミル４に戻されてスラリー製
造に供せられる。入口空気管１３には湿度計１４、流量
計１５および温度計１６がそれぞれ設けられ入口空気流
の状態値を検出するために用いられる。出口空気管２６
には湿度計２７、流量計２８および温度計２９がそれぞ
れ設けられ出口空気流の状態値を検出するために用いら
れる。スラリー管２２にはスラリー濃度計２３、流量計
２４および温度計２５がそれぞれ設けられスラリー製品
の性状を検出するために用いられる。The coarse particles 17 separated by the vibrating sieve 11 are fed by a transport means, for example, a pump 18, and are returned to the wet ball mill 4 as a coarse slurry 19 to be used for slurry production. The inlet air pipe 13 is provided with a hygrometer 14, a flow meter 15, and a thermometer 16, respectively, and are used to detect the state value of the inlet air flow. Outlet air pipe 26
A hygrometer 27, a flow meter 28, and a thermometer 29 are provided, respectively, and are used to detect the state value of the outlet air flow. The slurry pipe 22 is provided with a slurry concentration meter 23, a flow meter 24, and a thermometer 25, which are used to detect the properties of the slurry product.
３１は主制御器、３２は設定指令をしめし、上記入口空
気流、出口空気流の状態値およびスラリー製品の性状の
測定値がそれぞれ入力される。主制御器３１においては
スラリー製品の水分をはじめとする設定指令値として、
入口空気流および出口空気流における湿度、流量、温度
のｆｌＦＪ定値によってそれぞれの空気流に含まれる水
分量を演算し、さらに、上記水分量の減算処理によって
スラリーから空気流に移動した水分量、すなわち、水分
蒸発量の演算が行われる。主制御器３１からは給水流量
調節弁７に対する信号３４が出力せられ、このさい、前
記の水分蒸発量により補正した水供給量となるように設
定される。出力信号３３は計量供給機３に対する給炭量
設定を行う。給水流量調節弁７および計量供給機３にお
いては上記給水流量偏差および給炭量偏差に対応して給
水流量および給炭量の操作、制御が行われる。Reference numeral 31 indicates a main controller, and 32 indicates a setting command, into which the state values of the inlet air flow and outlet air flow and the measured values of the properties of the slurry product are respectively input. In the main controller 31, as set command values such as the moisture content of the slurry product,
The amount of moisture contained in each air stream is calculated based on flFJ constant values of humidity, flow rate, and temperature in the inlet air stream and the outlet air stream, and further, the amount of moisture transferred from the slurry to the air stream by the above-mentioned moisture content subtraction process, i.e. , the amount of water evaporation is calculated. The main controller 31 outputs a signal 34 to the water supply flow rate control valve 7, and at this time, the water supply amount is set so as to be corrected based on the water evaporation amount. The output signal 33 sets the amount of coal to be fed to the metering feeder 3. In the water supply flow rate control valve 7 and the metering feeder 3, the water supply flow rate and the coal supply amount are operated and controlled in response to the above-mentioned water supply flow rate deviation and coal supply amount deviation.
次に上記実施例の動作について説明する。上記実施例に
おいて、石炭貯留Ｗ１１に貯留された石炭２は計量給炭
機３により湿式ボールミル４に所定給炭量をもって給炭
され、同時に水および分散剤が水供給管５および分散剤
供給管８より給水流量調節弁７により所定水供給量をも
って湿式ボールミル４に給水される。そして石炭２は湿
式ボールミル４の運転によって湿式粉砕のもとで微粒化
し、スラリー１０となって振動篩１ｉに導かれる。この
さい、スラリー１０は粉砕熱により温度上昇をともなっ
ている。スラリーＩＯに含まれている石炭の粗大粒子を
分離除去したのち、冷却室１２において入口空気管１３
からの空気流との直接接触による熱交換が行われ、スラ
リーの冷却が行われると同時にスラリー中の水分が出口
空気管２６の空気流側に移動する。かくして、スラリー
と空気流との接触前後において空気流の湿度変化を発生
させることになる。したがって入口空気管１３および出
口空気管２６内の空気流の湿度を測定し、主制御器３１
に入力されるとともに演算処理されその湿度変化量に対
し空気流量、温度を考慮してスラリー中の水分変化量、
換言すれば水分蒸発量が演算によって決められる。つい
で、スラリー製品の所要の水分量に対してスラリーの水
分蒸発量により補正した水供給量となるように設定した
信号３４が出力されて給水流量の操作、制御を行い、同
時に給炭量の操作、制御を行うことにより、スラリー水
分制御を高い的中率をもって正確にすることができる。Next, the operation of the above embodiment will be explained. In the above embodiment, the coal 2 stored in the coal storage W11 is fed to the wet ball mill 4 with a predetermined amount of coal by the metering coal feeder 3, and at the same time, water and dispersant are fed into the water supply pipe 5 and the dispersant supply pipe 8. Water is supplied to the wet ball mill 4 at a predetermined amount by the water supply flow rate control valve 7. Then, the coal 2 is atomized by wet pulverization by the operation of the wet ball mill 4, becomes a slurry 10, and is guided to the vibrating sieve 1i. At this time, the temperature of the slurry 10 increases due to the heat of crushing. After separating and removing coarse particles of coal contained in the slurry IO, the inlet air pipe 13
Direct contact heat exchange with the air flow from the slurry cools the slurry while simultaneously moving moisture in the slurry to the air flow side of the outlet air tube 26. This results in a humidity change in the air stream before and after the slurry contacts the air stream. Therefore, the humidity of the air flow in the inlet air pipe 13 and the outlet air pipe 26 is measured and the main controller 31
The amount of moisture change in the slurry is calculated based on the amount of humidity change, taking into account the air flow rate and temperature.
In other words, the amount of water evaporation is determined by calculation. Next, a signal 34 is output, which is set to provide a water supply amount corrected by the water evaporation amount of the slurry for the required water content of the slurry product, and the water supply flow rate is operated and controlled, and at the same time, the coal feed amount is operated. , control enables accurate slurry moisture control with a high accuracy rate.
このように、上記実施例によれば、石炭水スラリーを湿
式ミルにより製造するにあたり、スラリー水分制御のた
め石炭および水の供給量を比率制御のもとで調節して供
給し、さらに、石炭水スラリーの粉砕熱による温度上昇
にともなうスラリー水分蒸発量による水供給量の補正が
冷却室における石炭水スラリーと空気流との接触前後に
おける空気流の湿度変化の検出のもとで行われるので、
上記補正を確実に行うことができ、石炭水スラリー製造
過程において複雑な変動要因の影響を受ける場合でも高
い的中率をもって正確なスラリー水分制御を行うことが
できる。In this way, according to the above embodiment, when producing coal water slurry using a wet mill, the amounts of coal and water supplied are adjusted under ratio control in order to control the slurry moisture content, and the coal and water slurry is The amount of water supplied is corrected based on the amount of slurry moisture evaporated as the temperature rises due to the heat of grinding the slurry, and the amount of water supplied is corrected based on the detection of the humidity change in the air flow before and after the contact between the coal water slurry and the air flow in the cooling chamber.
The above correction can be performed reliably, and accurate slurry moisture control can be performed with a high accuracy rate even when the coal-water slurry production process is affected by complex fluctuation factors.
本発明の実施態様は上記実施例のみに限定されるもので
なく、種々の態様が採用可能である。The embodiments of the present invention are not limited to the above embodiments, and various embodiments can be adopted.
本発明は上記実施例により明らかなように、石炭を湿式
ミルにてスラリー化し、粉砕熱により温度上昇したスラ
リーを空気流により冷却する石炭・水スラリー製造方法
におけるスラリー水分制御のため、冷却室におけるスラ
リーと空気流との接触前後における空気流の湿度変化の
検出のもとてスラリー水分蒸発量を演算し湿式ミルへの
水供給量の補正が確実になされて操作されるので、石炭
水スラリー製造過程において複雑な変動要因の影響を受
ける場合でも高い的中率をもって正確なスラリー水分制
御を行うことができるという顕著な効果を奏する。As is clear from the above embodiments, the present invention is aimed at controlling the moisture content of the slurry in a coal/water slurry production method in which coal is slurried in a wet mill and the slurry whose temperature has risen due to the heat of crushing is cooled by air flow. The amount of water evaporated in the slurry is calculated based on the detection of the humidity change in the air flow before and after the slurry comes into contact with the air flow, and the amount of water supplied to the wet mill is reliably corrected and operated, thereby producing coal water slurry. This has the remarkable effect of being able to accurately control slurry moisture with a high accuracy even when the process is affected by complex fluctuation factors.
第１図は本発明の一実施例に係る概略フローシートであ
る。FIG. 1 is a schematic flow sheet according to an embodiment of the present invention.
Claims (1)
リー化し、粉砕熱により温度上昇した前記スラリーを空
気流により冷却する石炭水スラリー製造方法におけるス
ラリー水分制御方法であって、スラリーと空気流との接
触前後における空気流の湿度変化を検出して水分蒸発量
を演算し、湿式ミルへの水供給量を操作してスラリー水
分を制御することを特徴とする石炭水スラリー製造方法
におけるスラリー水分制御方法。A slurry moisture control method in a coal-water slurry production method in which coal is wet-pulverized with water and a dispersant in a wet mill to form a slurry, and the slurry whose temperature has risen due to the heat of crushing is cooled by an air flow. Slurry moisture in a coal-water slurry production method characterized by detecting humidity changes in the air flow before and after contact with the coal water slurry, calculating the amount of moisture evaporation, and controlling the slurry moisture by controlling the amount of water supplied to the wet mill. Control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63090869A JPH01261496A (en) | 1988-04-13 | 1988-04-13 | Method of regulating water content of slurry in production of coal-water slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63090869A JPH01261496A (en) | 1988-04-13 | 1988-04-13 | Method of regulating water content of slurry in production of coal-water slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01261496A true JPH01261496A (en) | 1989-10-18 |
| JPH0412918B2 JPH0412918B2 (en) | 1992-03-06 |
Family
ID=14010527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63090869A Granted JPH01261496A (en) | 1988-04-13 | 1988-04-13 | Method of regulating water content of slurry in production of coal-water slurry |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01261496A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020052550A (en) * | 2000-12-26 | 2002-07-04 | 이구택 | Method and apparatus for milling semi-smokeless coal |
| CN105233731A (en) * | 2015-11-17 | 2016-01-13 | 重庆市渝派农产品开发有限公司 | Dried tofu stirring device with automatic feeding function |
| CN106311051A (en) * | 2016-08-31 | 2017-01-11 | 无锡东恒新能源科技有限公司 | System for premixing slurry with high solid content |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819231B (en) * | 2016-03-28 | 2019-04-05 | 徐州工业职业技术学院 | The wet ash conduit delivery method of gas making and device |
-
1988
- 1988-04-13 JP JP63090869A patent/JPH01261496A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020052550A (en) * | 2000-12-26 | 2002-07-04 | 이구택 | Method and apparatus for milling semi-smokeless coal |
| CN105233731A (en) * | 2015-11-17 | 2016-01-13 | 重庆市渝派农产品开发有限公司 | Dried tofu stirring device with automatic feeding function |
| CN106311051A (en) * | 2016-08-31 | 2017-01-11 | 无锡东恒新能源科技有限公司 | System for premixing slurry with high solid content |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0412918B2 (en) | 1992-03-06 |
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