JPS6025437Y2 - Crosslinking prevention device for powder and granular materials - Google Patents

Description

【考案の詳細な説明】 本案は、セメント等の粉体或は穀類等の粒体の容器の下
部排出部付近に、排出時に生ずる架橋を防止する装置に
関する。[Detailed Description of the Invention] The present invention relates to a device that prevents bridging that occurs near the lower discharge portion of a container for powder such as cement or granules such as grain during discharge.

従来容器の内壁面に可撓袋を設け、これを膨張収縮させ
て排出物に振動を与えて架橋を防ぐことは知られている
が、流動する物質が常に可撓袋を直接摺擦するため摩損
を生ずる。Conventionally, it is known that a flexible bag is installed on the inner wall of a container and the bag is expanded and contracted to vibrate the discharged material to prevent crosslinking. Causes wear and tear.

一方可撓袋は比較的低い空気圧で膨張させるには極めて
柔軟な材料が好ましいため摩擦強度に弱く直ぐ孔があき
、頻繁に交換補修を必要とする。On the other hand, since flexible bags are preferably made of extremely flexible materials in order to be inflated with relatively low air pressure, they have low frictional strength and easily become punctured, requiring frequent replacement and repair.

本案は、このような欠点を除去した気のう型架橋防止装
置を得ることを目的とするもので、以下実施形を図面に
ついて説明する。The purpose of the present invention is to obtain a pneumatic crosslinking prevention device that eliminates such drawbacks, and embodiments thereof will be described below with reference to the drawings.

１は容器、２はその下部排出部で一般に漏斗形でその下
端に筒口を設けることもある。Reference numeral 1 indicates a container, and 2 indicates a lower discharge portion thereof, which is generally funnel-shaped and may have a cylindrical opening at its lower end.

３は柔軟耐摩耗性の材料例えばゴム引布で作った隔膜筒
で、排出部の内部形状と略相似形である。Reference numeral 3 denotes a diaphragm tube made of a flexible and wear-resistant material such as rubber-coated cloth, and has a shape substantially similar to the internal shape of the discharge section.

その隔膜筒３を排出部２の内面に、上端を容器に固着し
て取付け、下端は自由状態に垂下させる。The diaphragm cylinder 3 is attached to the inner surface of the discharge part 2 with the upper end fixedly attached to the container, and the lower end is allowed to hang freely.

４は例えば３と同質のゴム引布製の細長い円筒形又は下
細まりの筒珍の気のうで、排出部２の円周面に略等間隔
に４〜６個位を可とする複数個、排出部内壁と隔膜筒３
との間に縦向きに排出部壁面に取付ける。Numeral 4 is a plurality of elongated cylindrical or tapered cylindrical air sacs made of rubber-coated cloth of the same quality as 3, for example, and about 4 to 6 pieces are arranged approximately equally spaced on the circumferential surface of the discharge portion 2. , the inner wall of the discharge part and the diaphragm tube 3
Install it vertically on the wall of the discharge section between the

本案は上記の構成であるから、第２図のように収縮して
いる気のう４を第３図のようにふくらませると、その気
のう部の隔膜筒３が内方に押されて横断面略花形に変形
する。Since the present invention has the above configuration, when the air sac 4 which is contracted as shown in Fig. 2 is inflated as shown in Fig. 3, the diaphragm tube 3 of the air sac is pushed inward and crosses the air sac. Transforms into a flower shape.

そのとき隔膜筒３の下端はフリーに垂下したままである
から、花形変形に当って全体がずり上る傾向となり、容
易に気のう４に従って変形する。At this time, since the lower end of the diaphragm tube 3 remains hanging freely, the entire diaphragm tube 3 tends to slide up when deformed into a flower shape, and is easily deformed according to the air sac 4.

気のう４の臘体を尊＜と粉粒体の荷重で第２図の状態に
戻り、そのとき隔膜筒３は先にずり上った分だけずり下
げられる。The weight of the air sac 4 returns to the state shown in FIG. 2 due to the load of the powder and granules, and at this time the diaphragm tube 3 is slid down by the amount that it had previously slid up.

この気のう４の膨張収縮による隔膜筒３の花形変形、上
下移動を繰返すことにより、粉粒体は内方への強い圧迫
・解放による振動的作用と隔膜筒３の上下ずれによる粉
粒体に対する摩擦作用とが相まって架橋を防止し、仮に
架橋しても直ちに崩し、円滑に口２１から流下する。By repeating the flower-shaped deformation and vertical movement of the diaphragm cylinder 3 due to the expansion and contraction of the air sac 4, the powder and granules are formed by the vibrating action due to strong inward pressure and release and the vertical displacement of the diaphragm cylinder 3. Coupled with the frictional action against the water, cross-linking is prevented, and even if cross-linking occurs, it immediately breaks down and flows smoothly down from the mouth 21.

公知の例えば実開昭４９−８２４７２、同５１−１０２
１７８号公報記載の考案のように排出部壁面に気のうの
上下を固定し、その気のうの膨縮で振動を与える構成で
は、その膨張は上下固定端間の設定時のゆとり長さ分だ
けしかふくらまない。For example, publicly known Utility Model Application Publications No. 49-82472 and No. 51-102.
In a structure in which the upper and lower ends of the air sac are fixed to the wall surface of the discharge section and the expansion and contraction of the air sac generates vibrations, as in the device described in Publication No. 178, the expansion is caused by the clearance length between the upper and lower fixed ends at the time of setting. It only swells by that amount.

又膨縮の反復で上下固着部が切れるので膨張度に限度が
ある。Furthermore, the degree of expansion is limited because the upper and lower fixed parts break due to repeated expansion and contraction.

又特開昭５２−１１１１６５号公報に排出部の内面に柔
軟性軟壁を設け、その背面に気のうを取付けたものが提
案されているが、この場合もその内壁の膨張度は上下の
固着で制約を受け、上記公知例と差はない。Furthermore, Japanese Patent Application Laid-open No. 52-111165 proposes a structure in which a flexible soft wall is provided on the inner surface of the discharge section and an air sac is attached to the back surface, but in this case as well, the degree of expansion of the inner wall is different between the upper and lower sides. There is no difference from the above-mentioned known example, as there is a restriction due to fixation.

ところが本案は前記のように隔膜筒３の上端だけを固着
し、下端は自由状態に垂下したから、隔膜筒３は前記の
ように気のう４の膨張に応じてずり上るので、気のう膨
張度を制約することがない。However, in the present case, only the upper end of the diaphragm cylinder 3 is fixed as described above, and the lower end hangs freely, so the diaphragm cylinder 3 slides up as the air sac 4 expands. There is no restriction on the degree of expansion.

そして気のう４は粉粒体との摩擦がないので、摩損のお
それが小さく、従って膨張度を大きく設定して架橋防止
作用を強力に与えることができる。Since the air sac 4 has no friction with the granular material, there is little risk of wear and tear, and therefore the degree of expansion can be set high to provide a strong anti-crosslinking effect.

又隔膜筒３と気のう４は分離した別体で、気のうは排出
部壁面に取付けたから、その何れが破損しても他に関係
なく容易に交換される。Further, since the diaphragm cylinder 3 and the air sac 4 are separate bodies, and the air sac is attached to the wall surface of the discharge section, even if either one is damaged, it can be easily replaced regardless of the other.

その気のうを細長く形成し縦向きに設けたので、従来の
気のうを横向きに配置したもののように、その膨張時に
粉粒体が気のうの上にたまり架橋現象の原因となるおそ
れがない。Since the air sac is long and narrow and is placed vertically, unlike conventional air sacs arranged horizontally, when the air sac expands, powder particles may accumulate on top of the air sac and cause cross-linking. There is no.

気のう１は第４図示のように支持部材６，７、ボルト・
ナツト８，９等により下部排出部２の壁面に支持させる
。The air sac 1 has support members 6, 7, bolts and bolts as shown in the fourth figure.
It is supported on the wall surface of the lower discharge part 2 by nuts 8, 9, etc.

１０は空気取入れゴム座である。このように構成すると
、気のう４は下部排出部２に対して移動しないから、そ
の間の摺動による摩損がない。10 is an air intake rubber seat. With this configuration, the air sac 4 does not move relative to the lower discharge part 2, so there is no wear and tear due to sliding therebetween.

又これに連結される空気管５を下部排出部壁面に固着す
ることができる。Moreover, the air pipe 5 connected thereto can be fixed to the wall surface of the lower discharge part.

即ち気のう４を隔膜側に取付けると空気管として可撓性
５゛弘管等を必要とし、気のうと下部排出部壁面とに対
し摺動して傷み易いがそのおそれがない。That is, when the air sac 4 is attached to the diaphragm side, a flexible 5'' tube or the like is required as an air pipe, and it is easy to be damaged by sliding between the air sac and the wall surface of the lower discharge part, but there is no risk of this happening.

第５図は隔膜筒３の取付例を示すもので、その上部にビ
ード１１を形成した補強布１２を添え、取付環１３を当
て、ボルト・ナツト１４．１５等により周面数個所を固
着し、隔膜筒３の上部全周を容器壁に密着的に取付ける
。Fig. 5 shows an example of how the diaphragm tube 3 is attached.A reinforcing cloth 12 with beads 11 formed thereon is attached to the top, a mounting ring 13 is applied, and several points on the circumferential surface are fixed with bolts and nuts 14, 15, etc. , the entire upper circumference of the diaphragm tube 3 is attached tightly to the container wall.

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

第１図は縦断面図、第２図は気のうの収縮時の横断平面
図、第３図は気のうをふくらませた場合の横断平面図、
第４図は気のうの取付部の側面図、第５図は隔膜筒取付
部の側面図。 １は容器、２は下部排出部、３は隔膜筒、４は気のう、
５は空気管、６〜８は気のう取付金具。Figure 1 is a longitudinal cross-sectional view, Figure 2 is a cross-sectional plan view when the air sac is deflated, and Figure 3 is a cross-sectional view when the air sac is inflated.
FIG. 4 is a side view of the air sac attachment part, and FIG. 5 is a side view of the diaphragm tube attachment part. 1 is a container, 2 is a lower discharge part, 3 is a diaphragm cylinder, 4 is an air sac,
5 is the air pipe, and 6 to 8 are the air sac mounting brackets.

Claims (1)

【実用新案登録請求の範囲】 粉粒体容器１の下部排出部２の内面に、 その排出部２の形状と略相似形に柔軟耐摩性の材料で作
った隔膜筒３を、その上端を容器に固定し下端を自由状
態に垂下して設け、 排出部２の壁面と隔膜筒３との間に数個の細長い気のう
４を縦向きに円周上略等間隔に排出部壁面に固定して取
付け、 各気のう４を流体ポンプにより膨張収縮させるように樹
皮した粉粒体の架橋防止装置。[Claims for Utility Model Registration] A diaphragm cylinder 3 made of a flexible and wear-resistant material and having a shape substantially similar to that of the discharge part 2 is attached to the inner surface of the lower discharge part 2 of the powder container 1, and its upper end is connected to the container. Several elongated air sacs 4 are fixed vertically to the wall of the discharge section at approximately equal intervals on the circumference between the wall of the discharge section 2 and the diaphragm tube 3. A cross-linking prevention device for powder and granular material made of bark and installed so that each air sac 4 is expanded and contracted by a fluid pump.