JPS6015556B2 - asphalt tank - Google Patents

asphalt tank

Info

Publication number
JPS6015556B2
JPS6015556B2 JP55042941A JP4294180A JPS6015556B2 JP S6015556 B2 JPS6015556 B2 JP S6015556B2 JP 55042941 A JP55042941 A JP 55042941A JP 4294180 A JP4294180 A JP 4294180A JP S6015556 B2 JPS6015556 B2 JP S6015556B2
Authority
JP
Japan
Prior art keywords
tank
molten asphalt
temperature
asphalt
wall
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
Application number
JP55042941A
Other languages
Japanese (ja)
Other versions
JPS56142176A (en
Inventor
新 稲葉
保広 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikko KK
Original Assignee
Nikko KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nikko KK filed Critical Nikko KK
Priority to JP55042941A priority Critical patent/JPS6015556B2/en
Publication of JPS56142176A publication Critical patent/JPS56142176A/en
Publication of JPS6015556B2 publication Critical patent/JPS6015556B2/en
Expired legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明はアスファルトプラントに附設されるアスファル
トタンク、特にタンク本体底部近傍に熱源体を配したア
スファルトタンクに関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an asphalt tank attached to an asphalt plant, and particularly to an asphalt tank in which a heat source is disposed near the bottom of the tank body.

従来この種アスファルトタンクにおいては使用適温より
若干低いアスファルトを投入した場合、これを適温まで
昇温するのに時間を要し、この間プラントは稼動を休止
せざるを得ない状況であり、速やかに昇温することが望
まれていた。
Conventionally, in this type of asphalt tank, when asphalt that is slightly lower than the optimum temperature for use is charged, it takes time to raise the temperature to the appropriate temperature, and the plant has no choice but to suspend operation during this time. It was hoped that it would warm up.

又タンク内の溶融アスファルトの温度分布は温度−比重
の相互関係よりほぼ直線的温度勾配を示し、タンク上部
の溶融アスファルトは必要以上の高温度となり大気中に
放熱する熱損失も甚大である等の問題点を有するもので
ある。本発明は上記問題点を解消することを目的とする
ものであって、画壁体を介してタンク本体を上下二室に
区画し、加熱されて昇流する溶融アスファルトの一部を
下部室に留め、他部を上部室に導くことにより上下二室
のそれぞれの室において自然対流を起すように構成し、
使用適温より低い温度の溶融アスファルトをタンク内に
投入した時に溶融アスファルトの取り出し口を有する下
部室の溶融アスファルトを先づ速やかにプラントへ供給
できるのに必要な温度まで昇温させるようにしてプラン
トの待機時間を短縮させ、更に上下各二室の温度分布を
ほぼ均一にするようにして、タンク上部の溶融アスファ
ルト温度を必要以上に高めないことにより放熱による熱
損失を最小限に留めることのできるアスファルトタンク
を提供するものである。
In addition, the temperature distribution of the molten asphalt in the tank shows an almost linear temperature gradient due to the correlation between temperature and specific gravity, and the molten asphalt in the upper part of the tank becomes higher than necessary and the heat loss radiated into the atmosphere is enormous. This has some problems. The purpose of the present invention is to solve the above-mentioned problems, and the tank body is divided into two upper and lower chambers through a partition, and a part of the molten asphalt that is heated and rises is transferred to the lower chamber. It is configured to cause natural convection in each of the upper and lower two chambers by fastening and guiding other parts to the upper chamber.
When molten asphalt at a temperature lower than the optimum temperature for use is put into the tank, the temperature is raised to the temperature necessary to quickly supply the molten asphalt in the lower chamber with the molten asphalt outlet to the plant. Asphalt that shortens the waiting time and also makes the temperature distribution almost uniform between the upper and lower chambers, minimizing heat loss due to heat radiation by not increasing the temperature of the molten asphalt at the top of the tank more than necessary. It provides a tank.

即ち、本発明は底部近傍に熱源体を配したタンク本体を
画壁体を介して上下二室に区画し、画壁体に溶融アスフ
ァルト昇流用の切欠孔部を穿設するとともに、画壁体を
タンク本体径より梢小径に形成して溶融アスファルト降
流用の間隙を設けたことを特徴とするアスファルトタン
クを要旨とするものである。
That is, the present invention divides a tank body, which has a heat source near the bottom, into two upper and lower chambers via a wall, and provides cut-out holes for molten asphalt to rise in the wall. The gist of the invention is an asphalt tank characterized in that the diameter of the top of the tank is smaller than the diameter of the main body of the tank to provide a gap for molten asphalt to fall.

図面に従って本発明の詳細な説明をすると、1はタンク
本体であって、周壁にガラスウール、ロックウール、石
綿等の保温材を添着し、熱が外部に逸散することを防止
する保温層2を形成した保温構造としている。
A detailed description of the present invention will be given according to the drawings. 1 is a tank body, and a heat insulating layer 2 has a heat insulating material such as glass wool, rock wool, or asbestos attached to the peripheral wall to prevent heat from dissipating to the outside. It has a heat-retaining structure.

3はタンク本体底部に熱源体として挿入された電熱ヒー
タであり、該ヒータの高温化による溶融アスファルトの
劣化を防止するため瞥体4内に内蔵され単位表面積当り
の発熱量を低く抑える工夫がなされているものである。
Reference numeral 3 designates an electric heater inserted into the bottom of the tank body as a heat source.In order to prevent the molten asphalt from deteriorating due to the heater's high temperature, it is built into the heating element 4 and is designed to keep the amount of heat generated per unit surface area low. It is something that

なおこの加熱装置は公知であり、本発明における加熱装
置はこれに限定されるものでなくタンク底部近傍に熱源
を有するものであれば良い。5はタンク本体1を上部室
6と下部室7に区画する画壁体であり、該画壁体には加
熱され昇流する溶融アスファルトの一部を上部室に導く
ための切欠孔部8が穿設されている。
Note that this heating device is publicly known, and the heating device in the present invention is not limited to this, and any device having a heat source near the bottom of the tank may be used. Reference numeral 5 denotes a partition wall that divides the tank body 1 into an upper chamber 6 and a lower chamber 7, and the partition wall has a cutout hole 8 for guiding a portion of the heated and rising molten asphalt to the upper chamber. It is perforated.

又画壁体5はタンク本体1径より梢小径に形成し、画壁
体5とタンク本体1との間に環状の間隙9を保持させ、
アングル鋼材(図示せず)等を介してタンク本体1に取
付けてあり、前記間隙9を溶融アスファルトの自然降流
の流路としている。
Further, the partition wall 5 is formed to have a smaller diameter than the tank main body 1, and an annular gap 9 is maintained between the partition wall 5 and the tank main body 1.
It is attached to the tank body 1 via an angle steel member (not shown) or the like, and the gap 9 is used as a flow path for the natural downflow of molten asphalt.

なお画壁体5の設置位置、切欠孔部8の位層及び大きさ
、間隙9の幅は本発明の目的、効果等を考慮して実験等
により効率よく設計され得るものである。10はプラン
トへ溶融アスファルトを供給する通路となる送り管、1
1はプラントより溶融アスファルトを還流させる通路と
なる戻し管12はタンクローリー車で運ばれる溶融アス
ファルトをタンク内に投入するための投入管である。
Note that the installation position of the wall body 5, the level and size of the notch hole 8, and the width of the gap 9 can be designed efficiently through experiments and the like, taking into consideration the purpose and effects of the present invention. 10 is a feed pipe serving as a passage for supplying molten asphalt to the plant;
Reference numeral 1 is a passage for refluxing molten asphalt from the plant, and return pipe 12 is an input pipe for charging molten asphalt carried by a tank truck into a tank.

溶融アスファルトの温度制御はタンク本体1底部の溶融
アスファルトの温度を検出して電熱ヒータ3に対する通
電を制御することにより行われる。本発明は上記の構成
より成るもので、使用適温より低い溶融アスファルトを
タンク内に投入すると電熱ヒータ3が発熱し、これによ
り加熱されて比重が軽くなった溶融アスファルトは昇流
するが画壁体5の存在により一部熔融アスファルトは昇
流を阻止され下部室7内を自然対流し、他の溶融アスフ
ァルトは切欠孔部8を通過して上部室6内に流入し、該
上部室内で自然対流するとともに上部室内に流入した量
に見合った比重の重い溶融アスファルトが環状の間隙9
を通過して自然降流する。このように加熱され昇流する
溶融アスファルトを分流して一部を下部室7に留め、池
部を上部室6に導くことにより上下二のそれぞれの室で
自然対流させるようにしているので溶融アスファルトの
取り出し口のあるタンク下部の熔融アスファルトをプラ
ントに供給するのに必要な温度まで速やかに昇温させる
ことができ得る。なお上部室6に昇流する溶融アスファ
ルト量を減少させれば下部室7の溶融アスファルトの昇
温を早めることができ得るが、一定時間経過後の安定状
態における上下部室の温度分布を均一にすることを考慮
すれば、おのずから限界があり、これは実験等により効
率よく設計され得るものである。又画壁体の位置につい
ても同様のことが言える。第3図は本発明に基づいて行
った実施例におけるタンク内の温度分布を示すものであ
る。
The temperature of the molten asphalt is controlled by detecting the temperature of the molten asphalt at the bottom of the tank body 1 and controlling the energization to the electric heater 3. The present invention has the above-mentioned configuration, and when molten asphalt whose temperature is lower than the optimum temperature for use is put into the tank, the electric heater 3 generates heat, and the molten asphalt whose specific gravity has been reduced due to the heating is caused to rise, but the wall is 5, some of the molten asphalt is prevented from rising and causes natural convection in the lower chamber 7, while the other molten asphalt passes through the notch 8 and flows into the upper chamber 6, causing natural convection in the upper chamber. At the same time, molten asphalt with a heavy specific gravity commensurate with the amount flowing into the upper chamber flows into the annular gap 9.
It passes through and naturally descends. The molten asphalt that is heated and rises in this way is diverted and a part of it is kept in the lower chamber 7, and the pond part is led to the upper chamber 6 to cause natural convection in each of the two upper and lower chambers. It is possible to quickly raise the temperature of the molten asphalt in the lower part of the tank where the outlet is located to the temperature required for supplying it to the plant. Note that by reducing the amount of molten asphalt flowing up into the upper chamber 6, the temperature of the molten asphalt in the lower chamber 7 can be accelerated, but the temperature distribution in the upper and lower chambers in a stable state after a certain period of time can be made uniform. Taking this into consideration, there is naturally a limit, which can be efficiently designed through experiments and the like. The same thing can be said about the position of the wall. FIG. 3 shows the temperature distribution inside the tank in an example carried out based on the present invention.

実施条件:タンク本体外径2500m/の(肉厚6の′
仇)タンク本体高さ7500の/肌、画壁体直径244
0の′凧切欠孔部直径1000の/肌(第2図の如くタ
ンク中心位置より若干ずらした位置に設ける)画壁体の
設置位置:タンク本体下部より3000m′仇の位置、
溶融アスファルト設定温度150こ○この温度分布は一
定時間加熱後の安定状態のものであり、図中二点鎖線で
示した直線は画壁体を設置しない場合の温度分布を示す
仮想線である。
Implementation conditions: Tank body outer diameter 2500m/(wall thickness 6')
Enemies) Tank body height 7500 / skin, wall diameter 244
0' kite notch hole diameter 1000mm (provided at a position slightly offset from the center of the tank as shown in Figure 2) Installation location of the wall: 3000m from the bottom of the tank body;
Molten asphalt set temperature: 150 degrees This temperature distribution is in a stable state after heating for a certain period of time, and the straight line shown by the two-dot chain line in the figure is an imaginary line showing the temperature distribution when no partition is installed.

このグラフより明らかなように画墜体を設置することに
よりタンク上部の溶融アスファルトの温度を必要以上の
高温度に高めることがないので、外部に放散する熱損失
も減少させることができる。又画壁体を設置することに
より図中実線と二点鎖線で囲まれた部分に相当する熱量
が節約されることになる。以上述べたように本発明によ
れば使用適温より低い溶融アスファルトをタンク内に投
入した場合溶融アスファルトの取り出し口のある下部室
の溶融アスファルトを速やかに所望の温度まで昇温させ
得るのでプラントの待機時間が短縮されるとともにタン
ク上部の溶融アスファルト温度を必要以上に高めること
はないので放熱による熱損失も少なくて済む等の著しい
効果を発揮しうるものである。
As is clear from this graph, the temperature of the molten asphalt in the upper part of the tank does not rise to an unnecessarily high temperature by installing the picture frame, so heat loss dissipated to the outside can also be reduced. Also, by installing the picture wall body, the amount of heat corresponding to the area surrounded by the solid line and the two-dot chain line in the figure can be saved. As described above, according to the present invention, when molten asphalt whose temperature is lower than the optimum temperature for use is put into a tank, the temperature of the molten asphalt in the lower chamber where the molten asphalt outlet is located can be quickly raised to the desired temperature, so that the plant is on standby. In addition to shortening the time, the temperature of the molten asphalt in the upper part of the tank is not increased more than necessary, so it can produce remarkable effects such as reducing heat loss due to heat radiation.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例を示す縦断面図、第2図は第1
図のA一A線における断面図、第3図は本発明のダンク
における溶融アスファルトの温度分布の1例である。 図中の符号を説明すれば次の通りである。 1・・・タンク本体、2・・・保温層、3・・・電熱ヒ
ータ、4・・・管体、5・・・画壁体、6・・・上部室
、7・・・下部室、8・・・切欠孔部、9・・・環状の
間隙、10・・・送り管、11・・・戻し管、12・・
・投入管。 敷1図 第2図 第3凶
FIG. 1 is a vertical sectional view showing an embodiment of the present invention, and FIG.
FIG. 3, a cross-sectional view taken along line A--A in the figure, is an example of the temperature distribution of molten asphalt in the dunk of the present invention. The symbols in the figure are explained as follows. DESCRIPTION OF SYMBOLS 1... Tank body, 2... Heat insulation layer, 3... Electric heater, 4... Tube body, 5... Painting wall body, 6... Upper chamber, 7... Lower chamber, 8... Notch hole portion, 9... Annular gap, 10... Feed pipe, 11... Return pipe, 12...
・Injection pipe. Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 1 底部近傍に熱源体を配したタンク本体を画壁体を介
して上下二室に区画し、画壁体に溶融アスフアルト昇流
用の切欠孔部を穿設するとともに、画壁体をタンク本体
径より稍小径に形成して溶融アスフアルト降流用の間隙
を設けたことを特徴とするアスフアルトタンク。
1. The tank body, which has a heat source near the bottom, is divided into two upper and lower chambers via a wall, and the wall is provided with a cutout hole for the rising flow of molten asphalt, and the wall is arranged to fit the diameter of the tank body. An asphalt tank characterized by being formed to have a slightly smaller diameter and providing a gap for molten asphalt to fall.
JP55042941A 1980-04-01 1980-04-01 asphalt tank Expired JPS6015556B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55042941A JPS6015556B2 (en) 1980-04-01 1980-04-01 asphalt tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55042941A JPS6015556B2 (en) 1980-04-01 1980-04-01 asphalt tank

Publications (2)

Publication Number Publication Date
JPS56142176A JPS56142176A (en) 1981-11-06
JPS6015556B2 true JPS6015556B2 (en) 1985-04-19

Family

ID=12650030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55042941A Expired JPS6015556B2 (en) 1980-04-01 1980-04-01 asphalt tank

Country Status (1)

Country Link
JP (1) JPS6015556B2 (en)

Also Published As

Publication number Publication date
JPS56142176A (en) 1981-11-06

Similar Documents

Publication Publication Date Title
US3996412A (en) Aluminum melting furnace
KR20070086868A (en) Launder for casting molten copper
EP1691945A1 (en) Heated trough for molten metal
GB1289175A (en)
US4402722A (en) Cooling arrangement and method for forming float glass
JPS62176927A (en) Molten glass distribution system
JPS6015556B2 (en) asphalt tank
JPH0214292B2 (en)
KR100792747B1 (en) Supplement system for hot dip galvanizing solution
US3536470A (en) Glass melting tank with bottom cooling sill
WO2012117355A1 (en) Channel type induction furnace
EP0109356A2 (en) Electrode for high temperature processes and its use
JP2922482B2 (en) Method and apparatus for providing a tinted glass stream
US3386720A (en) Metal-coating furnace
US5876661A (en) Heater for tanks containing a bath of molten metal
US4815440A (en) Apparatus for heating a bath
US3765797A (en) Improved electromagnetic conveyor trough
JP2795400B2 (en) Batch type heat treatment furnace for glass substrates
US2264232A (en) Forebay
JP2509418Y2 (en) Furnace structure of melting furnace with pressurized hot water distributor
JPH0219748B2 (en)
JPH10216928A (en) Heating and holding furnace for low melting point alloy
JPS6317988Y2 (en)
JPH0571878A (en) Molten steel holding furnace
SU1747837A1 (en) Article heat treatment furnace