JPS59500092A - Liquid-solid separation using a pressure roll coated with an elastomer layer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] coated with an elastomer layer Liquid-solid separation using pressure rolls Background of the invention The present invention generally relates to the separation of a liquid phase from a mixture of liquid and solid (hereinafter referred to as a hydrous mixture). Regarding separation. More specifically, the present invention provides a relatively dry mixture (hereinafter referred to as cake). A water-containing mixture using rolls pressed together to produce The present invention relates to an improved method and device for a reservoir for squeezing out a liquid phase.

Currently, the liquid and solid parts or phases of a water-containing mixture are separated to form a cake. There are several methods that can be used. These include centrifugation and compaction, for example in so-called belt presses.

Both of these methods produce a cake that appears dry. However, it may contain more than 50% water by weight. Have a cake In situations where further dehydration is required, removal of the liquid phase above 1. Representative is carried out by heating, which is especially important in view of current high energy costs. Naturally, this significantly increases the overall operating cost. For these reasons, liquid - Not only from the perspective of controlling the cost of solid separation, but also from the perspective of preserving scarce energy sources. From the perspective of It is clear that an improved device for removing objects mechanically is desirable, and this is the main point of the invention. An important object of the present invention is to prepare mixtures exhibiting turbulence, e.g. It is possible to directly receive and squeeze out most of the liquid phase from various water-containing mixtures, including An improvement that squeezes out the liquid phase from an aqueous mixture such as slurry or slurry. The goal is to provide equipment.

Furthermore, it is an object of the present invention to remove additional An object of the present invention is to provide an improved device for a reservoir for squeezing out liquid.

The related purpose is to receive the diluted slurry and to perform subsequent steps, ``so this diluted slurry.'' Conventional solid-liquid separation in which liquid is removed from the slurry and the slurry is dehydrated. resulting in a cake with a moisture content significantly lower than that achievable by The object of the present invention is to provide a device embodying the present invention.

The object of the present invention is to roll the belt into a plurality of pressure rolls 〒The power band is continuously rotated through the rotation of the main roll. at least one filter belt of suitable size (d) with a pair of filter belts. The force exerted by the vessel and the device that squeezes the liquid phase out of the object is 5. Pressure row The roll is biased towards the main roll with a predetermined force, thereby causing the running direction of the bell ( As the pressure increases continuously, the mixture is compressed with the belt open.

”-: The roll has at least a deformable engine stall on it as well as an upstream pressurized roller. The main roll has a single layer and thus a long double fold between the main roll and the deformable upstream roll.

As soon as the water-containing mixture enters such a Ninov 0, it immediately follows a predetermined relatively gentle slope. subjected to pressure increase.

The downward force exerted on the upstream roll makes its elastomer more deformable (more adjustable Therefore, the water-containing mixture transported on the belt; Accepted during nip. In this regard, native hard Ninov.

If the nip between the rolls is too steep, i.e. if the 270 angle is too wide. However, if the biasing pressure of the two soft rolls is relatively high, the water-containing hot compound will not enter the two tubes. It does not pass between the rolls, rather it simply accumulates in front of the rolls. However, in the end, the liquid-solid separation technology was rejected upstream of Nisof0. is well known to those skilled in the art. The present invention provides that as soon as the water-containing mixture enters the first two parts, The above-mentioned deformable method in which the 7″L of the navel is subjected to a predetermined relatively gentle gradient of pressure increase. coating at least the upstream pressure roll of the squeezing device with a single layer of a liquid polymer capable of This solution solves this long-standing problem in liquid-solid separation technology.

In a preferred embodiment, the main roll and the pressure roll are of the same deformability. Equipped with a lastomer coating.

In another embodiment, the pressure roll has a different layer of elastomer formed thereon. Shi, these layers are bell!・Hardness increases in the running direction. In both embodiments , mixture 1 (the applied pressure increase rate is relatively slow in the upstream two tubes, At each successive point, the angle becomes more rapid, and as the mixture enters each point, The solid content of the mixture is increased so that the next two peaks are reached in the reservoir from which the liquid phase is further squeezed out. Consideration is given to a large amount of modulation.

Invention KJ: h, td-5 approximately 0, 705 ky/CTn2 (approximately 10 psi) from Mr. Meng Yi 70.3 kg, / Cm2 (10 psi) ) is the peak pressure at which high value of the elastomer”$pl is long between the rolls It can be generated in the 0 pressure zone. The T force exerted on the mixture between pressure zones is Restricted to children who can be pushed off with the help of belt tension. In single belt equipment, the mixture is transported through a pressure zone between the belt and the elastomer layer of the main roll. , in the two belt nonutems, the mixture l'i, both of which have a king roll size 1, -i so The king roll and several It passes between Canada and Jordan.

In a preferred embodiment, two belts are used together, each with a flap adjacent to the mixture. A reservoir that is in contact with the filter cloth layer and the elastomer layers of the roll and absorbs free liquid. Demeking layer k (composed of multiple layers that can be excited) and thus rewet the mixture as it is transferred from the respective pressure zone. decrease the

Mixture ICjd, some of which tend to stick very strongly to the transfer belt after dehydration. Ru. Advantageous embodiments of the invention (according to which potential problems arising from such characteristics) is adjacent to the upper belt by the main roll VC when only a single belt is used. is solved by applying a breaking shear force to the cake with and It is applied when the target passes the final two horns. The generation of this shear force is the final pressure band This is best achieved by changing the shape of the area and therefore the path that the belt passes through. stomach. In a preferred embodiment, this may include any elastomer material on the final pressure roll. By not coating with a single layer, i.e. compared to the co-operative elastomer layer of the king roll. Coating the pressure roll with a layer of harder elastomer.

In an embodiment, each layer of the main roll and downstream pressure roll has an equal thickness of 1i. However, the first layer of elastomer on the downstream pressure roll is the same as the elastomer on the king roll. Harder than the first layer.

For supplying the aqueous mixture to the squeezing device of the invention, two filter belts are provided. When using the belt, at least the outer belt or the inner belt Id pressure roll. It is often guided through an upstream supply section, and both belts are approached by a king roll. converges as the temperature rises, thereby capturing the water-containing mixture fed to the lower belt. You will be guided by the sea urchin. In a preferred embodiment, the strands extend along the side edges of the two belts. In order to tighten each other and prevent the mixture from being pushed (provided on the side edge of the C belt) There is. They may be sewn onto the Struffle 01d belt at their edges. another In this embodiment, separate loose straps are used to circulate over the raw roll on the belt and tow. Keep the edge of the belt in the zone upstream of the first and second Tension is applied to tighten the roll. The strap is upstream of Daiichi Ninono ( In theory, this zone works together to hold the mixture between the belts, so the water-containing The mixture is exposed to the pressure exerted by the tensioned belt due to the pressure on the belt. distributed over almost the entire width1, Stranono0 is within this band and then within the nip. Both are preventing the leakage of contaminants from the helicopter. Sara((Another embodiment Now, the EX1 Mars strap is attached to the I11 edge tr (not joined) of the main roll. On top, form a wide helix that overlaps the edge of the belt. has been completed. Elastomer strap 0 is pressed between the belts of the first and second knobs. Can be expanded/Thicker than 18 pieces/Ha.

elastomer strap Figure 1 shows that the edges of the belt are compressed with a force higher than other parts of the belt. 1 is a somewhat schematic isometric view of a preferred first embodiment of the squeezing device, with an elastomer; FIG. 1 is a partially cut-away view to show the Tomer coating and pressure roll.

FIG. 2 is a schematic diagram illustrating an embodiment of the present invention for receiving and receiving an ID diluted slurry. It is a roughly 1111 elevational view.

Fig. 2A 1ri Substantially deformable elastomer on upstream pressure roll and main roll FIG. 2 is an enlarged view of the portion of FIG. 2 quadrupled by circles 2A indicating a single layer.

Figure 2B illustrates the relative deformability of the layers on the downstream pressure roll and the main roll. Fig. 2 is an enlarged view of the part of Fig. 2 enclosed by circle 2B, which is exaggerated;

Figure 3 shows the pressure difference between the rolls used for squeezing and the body being squeezed out. Configured to allow controlled supply of dynamic discharge and/or cleaning mixture (C) 1 is a schematic diagram illustrating an embodiment of the present invention.

Figure 4 shows a reservoir (C-E) that enhances liquid extraction while providing reliable retention of solids. FIG. 2 is a schematic cross-sectional view showing an embodiment of the pond of the present invention in which the surface of the lastomer roll is corrugated. .

FIG. 5 is a diagram illustrating a two-layer filter belt useful in the present invention.

FIG. 6 is a diagram similar to FIG. 5, but showing a six-layer belt.

FIG. 7 (This is an enlarged partial sectional view of the filler layer belt.

Figure 8 ('i Inter-crawl compression zone (・solid capture and subsequent solid A case made of a single layer of elastomer on the roll to further facilitate object retention. FIG. 3 is a schematic perspective view of a roll and belt with key-engaging rib elements.

Figure 9 shows separate routes to prevent the mixture from escaping laterally from the pressure zone. 1 is a schematic diagram illustrating an apparatus using a dust lamp;

FIG. 10(d) is a cross-sectional view taken generally in the direction of arrows 10--10 of FIG.

FIG. 10A (in the side edge region of the embodiment shown in FIGS. 9 and 10 1/ζ) FIG.

FIG. 11 is a cross-sectional view taken generally in the direction of arrows 11--11 of FIG.

Figure 12 is similar to Figure 10A, but the mixture leaks laterally from the side edges of the belt. FIG. 7 is an enlarged cross-sectional view showing another structure for preventing ejection.

FIG. 13 is a side elevational view of another preferred embodiment of the squeezing device of the present invention.

Figures 114A to 14C show equal thickness of elastomer or broken body on the pressure roll. 2 is a schematic diagram showing a preferred embodiment having hardness but different hardness;

Figures 15A to 15C are shown by actual contour lines in Figures 14A to 14C, respectively. Figure 1 shows pressure hourly profiles or curves for continuous pressure rolls.

Description of preferred embodiments As shown in FIG. 1, a prototype squeezing device 10 includes a side frame 11. and between these side frames there is a single main or central roll 12 (shown in Figure 1). (partially visible in Figures 2A and 28) A plurality of rotatable rolls are extended. Multiple presses or pressure rolls 1 3 spaced circumferentially around the lower part of the main roll and It is rotatably supported by a bearing block installed in the guide inside the seat 11, The roll 7 shaft 14 passes through the slot 16 in the side plate.

The inner bearing block has a slot 16) and a guide parallel to this. The slot 16 is provided in the shaft 17 forming the axis of the main roll 12. The blocks are oriented radially against the main rotor with a given force. It is best to press it towards the surface of the bottle.

The force that moves the bearing block and pressure roll in the radial direction is generated by each shaft. Collar 20 on one side of foot 14 (which allows the connected hydraulic ram 18 to be connected to any suitable added by any reasonable means.

Several idler rolls 21 and other suitable bearings installed on the side plates The endless belts 22 and 23 are supported by blocks and are It is positioned at 1 to guide you. The inner belt 22 covers the surface of the main roll 12. in contact with this surface, then a series of passes above the main roll. You will be guided to pass over the idler roll. On the other hand, the other i.e. endless The belt 23 is continuously guided over the main roll between the main roll and the pressure roll 13, Then a series of idlers 19 below the centerline of the main roll 12 and the top of the unit. continuously guided on an idler adjacent to the section. Thus, the two belts are A continuous pressure zone is formed between the roll 12 and several pressure rolls that are in contact with the cage. Pass through in a face-to-face relationship. The predetermined tension of the inner belt 22 is determined by one or more upper idlers. is applied by the ram 18 on the outer belt 23, while a predetermined tension (ri suitable It is added by a similar ram which acts on the same eye. The belt is worn in public while driving. Guided by any conventional means such as by tilting the idler as in It's okay.

Can be rotated by main rotor TL sprocket 24, chain 26 and motor 27 , thereby moving the belt and idler as required. supply The material is fed into the unit from the artificial space 28 (FIG. 1) between the belts: the cake is After the belt is separated, it is discharged at the discharge point indicated by arrow 29. The squeezed liquid collected in part P is discharged through a suitable conduit 31.

Feed is supplied from inlet 28 by any means suitable for the material to be destroyed. example If the feed is a filter cake, use a filter conveyor to feed the cake. Hono? - Let it fall into the space between belts 22 and 23. Or you can push it into that space. As a variant, if the feed is clay If the material is mushy but pumpable, as in the case of The pressure between the belts then increases in the compression zone between the main roll and the pressure roll. It can be pushed out.

In yet another variation, shown in FIG. 4 as a relatively dilute slurry onto the first vacuum assisted evacuation section 33 comprising It will be done.

A series of vacuum guns 34 are connected by a suitable vacuum source (to increase the degree of vacuum) and connected by an inner belt. When 22 passes over the gun, liquid from the slurry drains from the belt into the pan. The liquid is removed as a p-liquid.

The resulting cake is chunky and moist and is transferred to the second vacuum section 36. runs upwards, where it is introduced between the two belts 22 and 23, and then an additional vacuum 37, from which the furnace liquid is collected and carried away. After that, the solids Transferred to a continuous high pressure compression stage according to the invention.

The embodiments shown in FIGS. 1 and 2 both include an inner belt 22 and an outer belt 2. Two belts consisting of 3 are used, and the mixture is transferred between these belts. Ru. For some materials, only a single belt 22 may be used. Such a place In some cases, when the material is transported through a continuous pressure zone, the solids (mixture) are transported through a single belt. and the main roll 12.

Some materials can be very slippery or slippery, especially when subjected to excessive squeezing pressure. Some are difficult to hold in place between the belts. further help to solve this To this end, the present invention contemplates a variant that provides a two-way secure grip. This form As shown in FIG. 4, during the fourth step, the special main roll 430 surface is corrugated, That is, wave depressions are formed in the length direction, and the special pressure roll 44 is applied to this wave shape. Shaped to fit. Another variant shown in FIG. and some pressure rolls, including longitudinal glue pro 0 spaced apart at regular intervals on the outer periphery. It has a small lip lattice. Moreover, the outer circumferential raised portion 61 is at least At both ends of the coil (4 contacts are provided).

Although the invention may be practiced using a variety of porous fabrics for the belt, fine filter media may be used. It has been found that belts having a body layer with one or more additional layers provide superior effectiveness. won.

Figure 5 shows a two-layer belt consisting of a filter media layer 4G and a layer of absorbent felt 47. It shows the composition of [Z]. Figure 6 shows the filter material layer 46, a single fiber material layer with specific axial hardness. 48 and an absorbent felt layer 47; FIG. Figure 7 shows the It is self-explanatory, and the three-layer belt shown in Figure 8 is shown in cross section, and the belt is filtered. It is turned upside down to show some of the solid particles on the media layer. With a three-layer belt, the fill The media 46 and felt 47 may be the same as those in the two-layer belt. Single fiber layer 4 8 is provided for belt strength and/or stability in both directions, and It also acts as a filter deck to help drain the squeezed out liquid. clearly, The filter material 46 is solid for cake formation and expression with minimal clogging. Solids (mixtures) that should always be selected and processed to provide optimum retention of substances Varies depending on. In all cases, fine media 46 is used to filter solids. The sea urchin is selected to make the cake easy to peel.

The purpose of the felt layer 47 is to hold the surface of the roll in place and absorb moisture. The belt is therefore Hang it on one roll. When the belt and solid object are tightened, the felt will be under pressure. It is compressed and the liquid is squeezed out. As the belt leaves the compression zone, the absorbent layer expands. tension to absorb free liquid, thereby minimizing reabsorption of liquid by solids . An important issue to consider is the degree of miscibility of the mixture and its tendency to be rejected from the nip. The method is to apply pressure gradually at each stage in a predetermined manner that takes into account the direction. Achieve this To achieve this, the water-containing mixture is gradually solidified and then a roll receives the mixture. It is necessary to apply pressure between rolls to compress this. If pressurized In other words, if the compression force is too high, the solids will not be accepted into the nip between the rolls and will accumulate. It gets stuck and is forced laterally between the belts, thus causing a complete failure during operation. there is a possibility. In the case of a two-belt device, the solid material is Compression is achieved by applying compressive force through an outer belt to trap the solids in the first compression zone. This is achieved by a converging belt that carries the Pressure exerted by upstream pressure roll The force is adjusted to deform the upstream pressure roll and main roll layers by a controlled amount. These layers readily accept water-containing warm compounds. After passing through the first band, The pressure decreases significantly with the distance between the pressure rolls, but the outer belt keeps the mixture continues to be pushed onto the main rolls in a drier and more compressed state than when it entered the zone; This means that the force in the second band π and the higher peak force can be quickly reduced. It also makes it possible to Therefore, the force exerted by the 42 pressure rolls increases. The elastomer surface is then deformed to further squeeze out the liquid phase, but only partially. A mixture that has been deliquified in a dryer state/a constant rate of pressure depending on the flow behavior of the mixture As the mixture increases, make it possible to do so. At the end of several press operations, at each connection stage, Similar idea 1@ is used.

The 9th to 11th sections are a mixture of separate loose narrow strap sizes or bands 62. ○ At the edge of the belt, adjacent to it to seal the edge of the belt to prevent lateral leakage. Figure 2 shows an embodiment guided and stretched. Each strap has a furanono The 5th wheel is kept under tension and guided by the wheel 63, as shown in No. 10A. , strap 0 is placed on the side edges of both belts 22 and 23 at the main roll dimension. , and both belts are pressed together against the main roll by 1 inch, thus (in the negative direction) It clearly shows the leakage of solids. Variations not shown but within the scope of the invention include The loop size or strap size is sewn to the outer edge of the belt 23.

In such cases, the strap may be a fabric composite belt.

FIG. 12 shows a layer of elastomer on the main roll 12 near the side edge of the main roll 12. Edge sealing is achieved by two elastomeric straps 66 that are joined together. An embodiment is shown below. The strap is received between the belts near the edge of the belt. thicker than the expected thickness of the mixture as it is being poured and spread. edge-sealed elastomer Trump 66 actually extends the edges of both belts to each other and to other parts of the belt. The elastomeric material is pressed with a pressure greater than the pressure applied to the elastomer. other fruit Similar to the embodiment, such large pressure is applied over a substantially wide band on the side of the belt. spread across the belt, thus allowing the liquid volume or mixture to move and escape between the belts. This opens up a number of potential leakage paths.

According to the invention, the compression or pressure zone (nip) has a finite width (in the direction of belt travel). ), thus forming a so-called long nip. Thus, thin contact The mixture to be dehydrated is placed between two hard, unyielding rolls that are subjected to pressure along a line. Rather than passing through, the main roll and one or more pressure ports are provided with deformable surfaces. It is being

This results in a relatively wide range, perhaps 2.54 to 10.16 across the width of the roller face. (1 to 4 inches) pressure zone, which is a constant rate of pressure increase at the entrance of the nip. This increases the fore-harvesting of the mixture. Also, the total squeezing force applied to the mixture is greater This allows for the removal of larger amounts of liquid at higher belt speeds. It is thought that it will be done. Typical peak squeezing forces usually vary depending on the material. this The peak squeezing force can be as low as 10 psi, for example, or as low as several hundred ps. i can be any high value.

In order to produce the same total pressure in the mixture, when the zone of long dinozo contact is narrow (when the area is small), the peak pressure should be high; on the other hand, if the area is relatively large When the area band is wide, the peak pressure is preferably low. Although the layer thickness is the same , the nourometer hardness of the deformable surface or layer of the pressure roll varies from roll to roll. If the However, the overall pressure is the same. If present, squeeze the free water from the solids. Because it takes longer to release, the longer the pressure is applied in the nip, the lower the release pressure becomes. It seems that lower values are more advantageous. Additionally, the diameter of the pressure roll can be changed. Wear. With a constant overall force, the smaller the roll, the higher the roll in a shorter amount of time. pressure is created.

The water (and other sulfurs) squeezed out of the mixture is often drained into a dark drain. ・It can be easily dropped into a reservoir such as a jar. However, it is possible to It may be desirable to remove it as quickly as possible to prevent reabsorption by the mixture. be. According to the invention, this is accomplished by adding water into the roll, as shown in the embodiment of FIG. This is accomplished by providing a pressure device or liquid withdrawal device. This implementation , the main roll 12 and the roll 13 have a perforated surface, in particular a perforated elastomer coating 5. 1, which are connected via sector 52 and conduit 53 to a vacuum source (not shown). (2), but these allow water to drain out, as if pumping water into the pores. Traditionally, it belongs to school children. Roll 13 is fixed with knee 55 and the inner roll The surface passes through this fixed tube and the squeeze fluid is connected to the main roll. from this stationary tube by the same vacuum source that was used. Main roll hydraulic system (not shown) is similar to a drum filter and the conduit 58 is a conventional valve 5 as is well known. It is connected to 7.

In such cases, it is advisable to wash the mixture between pressurization stages. Similarly, this is the third In the embodiment shown, the outer belt is removed while the main roll is maintained in communication with the vacuum source. Through a perforated roll 13 located between two pressure rolls 13 rotating oppositely to each other. This may be achieved simply by supplying the cleaning liquid under pressure. In this way, wash The purified liquid is pumped to a perforated cleaning roll, then passed through the compressed mixture and passed through a perforated main roll. flows out through the channel. Also, cleaning should be done just before the belt and mixture enter the nip. Pour water into them, while the water is removed from the main roll, and then the remaining wash water is poured into the next This can be achieved by squeezing in a pressurized zone.

as in methods or apparatus involving fine solids and porous filter media , this media has a tendency to become clogged with fine solids. This problem is caused by a low belt. The problem is solved by applying physical force when passing between the channels. However, from time to time, According to the present invention, this problem can be solved by providing a wash box and a supplementary catch tank. reduced by All cleaning boxes and collection pans are shown in Figure 1. It can be connected internally to a conduit 31 as shown at 1 .

The material can be placed on a belt in a two-belt system or in a single belt/l/l-system. tend to stick to the surface of the main roll 12 in the machine, thus causing cause a rift. According to another feature of the invention, this problem is solved by and/A shearing action is applied to the surface of the sweet cole to peel off and drain the cake. Avoided by doing. Shear action (when the outer and inner belts move away from the final nip) When exiting, the outer belt 23 is circulated far away from the inner belt 22, and the belt is by forcing the belt to change its running path as it passes through the compression zone (knob) achieved. This may be compared to the opposing rolls that form the final band compared to other stages. Even if it is done by coating with a single layer of elastomer with different hardness good. Illustratively, in Figure 2 and Figure 2B, the final pressurization call is M is overlaid with a single layer of elastomer, which is less deformable than the single layer of elastomer used in the original.

As a variant, the final pressure roll does not have a rubber (elastomer) layer on its surface. You don't have to. As can be clearly seen by comparing Figures 2A and 2B , the belt path profile of the last band is significantly different. This is because the face-to-face roll A final band that is flat similar to that of the band immediately preceding the final band that is equally deformable. making it impossible to have

Instead, in the final zone, sharp nails are applied to the softer main roll elastomeric surface. When the depression is formed and the belt is moved along this deformation path, the cake and the belt are The cake is separated from the inner belt in response to what is called a It remains on the outer belt which is circulated out of the nip past the pressure rolls.

In order to operate in accordance with the present invention, the device must be structurally sound. , and for a mixture consisting of 1000 psi, how high is the extrusion pressure applied to the mixture? The pressure roll can be pressed against the main roll with sufficient force to generate.

As mentioned earlier, the pressure in the continuous pressure zone increases in the direction of belt travel. However, this gives rise to a different pressure curve. Exemplary pressure curves are shown in Figures 15A-15C. These are depicted generally in Figures 14A-14C and below. 1 is a plot of the conditions in an overall system of the type described in .

From the above, a basic press consists of a main roll and multiple pressurizing rolls. The main roll and at least some of the pressure rolls are made of deformable rubber. or has a surface layer of other elastic (elastomeric) material . The pressure roll is installed so that it approaches or moves away from the surface of the main roll. A hydraulic ram or adjustable equalizer applies a predetermined force to the main roll. It is placed so that it can be pressed against.

Testing was performed on a prototype similar to that shown in FIG. The unit is 66, For 04cm' (2.6 inch) diameter king roll and twisting of the lower part of the king roll. Pressure rolls with a diameter of 30.48c7n (1'2 inch) were used with spaced apart spaces.

All of the rolls are 2.54 cwr (1 inch) natural with a nourometer hardness of approximately 65. Covered with a comb layer. The pressure roll is supported by a sliding hair ring block, and the bearing Attach each block to a hydraulic ram that presses the pressure roll against the king roll. I got it.

In the basic experiments with kaolin clay, two belts were used. The inner belt is shown in Figure 6. The outer belt was a two-layer belt as shown in Figure 5.

The three-layer belt consists of one fine filter medium made of polyester cloth and one made of monofilament polyester. It had an intermediate layer and a felt layer of polypropylene. Double-layer outer belt eliminates the middle layer However, as explained in conjunction with Figures 9 to 11, seal the belt edge. A narrow strip of strips sits on top of the felt sewn along both edges to help It had a wrap. Place the fine filter media layers facing each other and The belt was run over one main roll with the felt layer facing the appropriate roll surface. suitable Appropriate idlers, tension adjusters and alignment rolls were provided.

The feed material is pre-filtered solid 58 kaolin clay, which is passed through both belts. Supplied to the space between the convergence belt before entering the Ninozo between the main roll and the first pressure roll did.

The pressure on the first pressure roll 13 is 1.7575 p/m (25 psi), This pressure held the solid material (water-containing mixture) between the belts. Pressure step 1 ’ was increased.

3, 515kg/ff12 (50psi) for the second roll, and 7, 03kg/c7n2 (100psi), and 14 for the final roll. 06 was subjected to 97 Cm2 (20 psi) k. Pulled bell between rolls A pressure of approximately 0.1406 kg/cm2 (approximately 2 psi) was applied to the plate. This configuration Now, the pressure curves are 1'! different from those shown in Figures 15A to 15C! are the same , maximum value 3, 515 kq/cm2 (5 psi) to maximum value 14.06 It has a peak pressure of kP/Cm (200psi) i, but between the rolls At about 0.1406, a pressure as low as @/crn2 (about 2 psI) intervenes.

Under the above conditions, the initial feed containing 58 solids contains 72 solids. It was further dehydrated to a containing cake. This represents the removal of residual moisture Ru. This td means that the final product must be dry and that it can be This is significant because removal by heating is significantly cheaper than removal by heating.

Samples of other materials processed on the same machine with separate belts showed similar dramatic effects. It brought fruit. For example, increase in solids cents according to the following table (ri mentioned above) This was achieved with the press of the invention described in conjunction with the examples.

Materials Press feed solids percentage discharged from press Solids/P-7 Corn gluten Section 42 Section 55 Glucoamylase Section 23 41'ffi Corn Fiber Section 21 Section 53 According to the implementation shown in FIG. It is provided to squeeze out the liquid phase from the Apparatus-100 is configured to For clay mixtures with caerular flow behavior where the centrifugation is about 55% to 60% The mixture was dehydrated and the solids/ξ-7 points were about 68% to 72%. It was found to produce a loaf-like mixture. Cocoid clay mixture j″i Contains a ladle of size and kneads particles, making it easy to capture the mixture even if the cole Relatively large enough diameter to form an angle of 70 degrees Even if the It would be very difficult, if not possible, to do so with the cake press shown. , such a cell-like matrix may be subjected to a pretreatment of the type shown in FIG. Processed directly without dehydration. The illustrated apparatus 100 has a surface area per linear meter of surface area. About 907.18474 to 1360.77711 kl of dry solids (about 20 Moisture is added to the above solids content range at a processing rate of 0 to 3D (pounds). The thread came up.

Referring to FIG. 13, the device 100 includes a frame 102 constructed from tubular steel members. We are prepared. The main roll 104 has bearings (bearing 1111 shown in the figure is It is completely hidden by the driving suzoroke note 106, so it is not visible in the drawing) It is mounted horizontally and is driven by a motor 108 via variable speed reducers 1 and 10. The king roll is made of elastomer with a thickness of 2.54C7n (1 inch). It consists of a circle 1 @ section steel drum to which the material layers are joined.

The elastomer material used is natural rubber with a nourometer hardness of 5. .

The diameter of the drum is 48 inches.

The four elastomer-coated secondary or pressure rolls 112-118 are typically the main Frame 1o is placed at a position spaced apart in the circumferential direction by the size of the lower half of roll 104. 2+c is installed. Each pressure roll has the same structure, and rolls 112 to 11 8 are each operated by a separate pair of hydraulic cylinders 120-126 of the king roll. The reinforcement can be adjusted in both directions and is individually biased. Each pressure roll has the same sliding structure on both ends The pressure roll is supported by the main roll half and the sliding structure with It reciprocates in the radial direction and rotates about a horizontal axis that is naturally parallel to the main roll. I can do it. One such structure relates to the third roll of the four pressure rolls. This is shown in FIG. This structure consists of a large cylindrical frame that is concentric with the main roll. It is provided with a sliding placket member 128 that securely attaches to the components.

Each pressure roll has 7 shafts at its end; It is rotatably supported by a pillow block bearing 132.

These bearings are mounted in sequence on their respective sliding bracket members at each end of the frame. It is attached to a slidably supported sliding member. The piston of the cylinder It operates at a sliding rate, thus forcing the pressure roll to maintain a substantially constant predetermined pressure. press it against the wall. The paired cylinders associated with each pressure roll are located in separate oil fields. connected to the circuit. Separate controls for each circuit are located adjacent to the feed end of the press. Each of the seven rings can be individually engaged and disengaged if desired. It is equipped with a four-way valve 136, a pressure control valve 138, and a power meter 140. .

In addition 1, the apparatus 100 transfers the mixture to the main roll 104 and pressure rolls 112-118. a pair of engines for transporting the mixture to be dehydrated through a nip between A dress filter belt 142, ]44 is provided. These belts have two layers In this case, the inner layer is paper-thin, fine horn-sized Single (made from cut polyester belt material, the outer layer is a large horn-sized single fiber) Made from fiber polyester belt material. These two layers are at their 1111 edges. They are sewn together at the rollers. The outer layer (adjacent to the roll) is to withstand considerable tension and provide lateral stability in lateral dimensions. strong enough. The outer layer releases the free water squeezed out inside Ninozo in all directions. It is sufficiently heavy and porous to act as a denogi layer. Inner layer ( adjacent to the mixture)! d relatively dense and smooth to facilitate cake peeling; It is enough to pass through the squeezed liquid (liquid phase) squeezed from the mixture in the two tubes. It has a fine horn size.

Figure 13 In order to keep the belt circulating, the belt is placed between the upstream roll 112 and the king roll. Before entering the belt υ, tension the belt against the main roll ζ: It shows the structure. For the lower belt 144 ○Purchase 1・Material is installed upstream of the feeder 148. an Equanov 0 roll 146 and a roll 150 downstream of the feeder; This roll 150 is horizontally aligned with roll 146 to form a horizontal feed zone. Ru. Roll 150 is located above the axis of rotation of the main roll and is located on the lower (outer) base. The first and second knobs associated with the upstream pressure roll are directly connected to the close enough to the main roll to engage both belts against the main roll at the front. Ru. The Takeanoff 0 roll 146 is tensioned horizontally by a suitable oilfield cylinder. The lower belt firmly presses the mixture and the inner belt against the green roll. I'm trying to get cold. The lower belt exceeds roll 160 from the state of contact with the king roll. The tee then passes over a series of rolls 152 and through a return path below the pressure rolls. Circulate with the size of a horn roll. The roll upstream of the pick-up roll is a conventional It is part of the alignment device.

Upper Belt L-142H Above the horizontal feed section of the lower belt upstream of roll 150 ( (It is hung on a so-called dandy roll located at the upper bell. The roll gradually approaches the roll and comes into contact with the water-containing mixture near roll 1500. . Thus, the mixture is spread between the belts! Captured in , both belts are roll 1 circulates in the zone between belts tensioned over 50°C and then passes through the upstream pressure rollers. Le's two horns (enter C@(te) and touch the king roll.

In this zone 7C between the roll 150 and the first second knob, the water-containing Due to the tension of the belt, the entire width of the belt τ is approximately uniform. Ru.

The upper bell l-] 42, together with the bending roll 156, is a conventional belt alignment 'JAW It is aligned with the lower belt 144 by l 54 . take anozolol 158 is located downstream of alignment device 154. The upper belt is a downstream pressure roll 11 8' is located on one side and the king roll 104 is held down by the zoko roll 160. It is. The pressure roll 118 is rotatable by +/-162K with a supporting bracket. It is rotatably attached to a pair of lever members connected together, and the bracket is connected to a sliding bracket member for sequentially dispensing IJ and E O-rules 118. child The structure of the upper belt main roll (・ζ) is kept under tension, and both belts are kept under tension. When the tip branches after exiting the final ninov 0, the cake, i.e. the dehydrated mixture This makes peeling from the upper roll easier.・Although not shown in Figure 16, the edge seal separate edge seals sewn to the side edges of both belts 142 and 144. The trips are provided adjacent the edges of belts 142 and 144.

These pans)* are made of woven monofilament polyester. These functions are shown in Figure 9~ Pressing the side edges of the belt as shown in FIG. 12 and discussed herein. It is in.

Each of the pressure rolls 112 to 118I'i in this example was 55.8 BCm (22 inches). cylindrical surface 1 of a steel drum having an outer diameter of It has a 1 inch thick layer of elastomeric material. Each country Pressure roll covering 1d has a nourometer hardness equal to that of the main roll covering, i.e. 6 It has a nourometer hardness of 5.

The bias pressure applied from the pressure roll '11'2~''118K is the downstream roll 118 It is the largest regarding tC. In particular, the oil pressure in cylinder 126 is approximately 35.15 It is set to exert a peak pressure of kg/Crn2 (approximately 5 oopsi). Ru. As the pressure applied to the aforementioned rolls gradually decreases, the pressure applied to the cylinder 120 increases. Therefore, the peak pressure exerted on the mixture in the nip of upstream roll 112 is 4.21 The peak pressure exerted on the mixture in 8kp/three tubes is about 8.7875-10. 545, y/Cm2 (approximately 125 to 150 psi,), and the size of the roll 116 The peak pressure on the mixture in the third nip is 17, 574-21, 09 kg/ Cm2 (250 to 300 psi).

The pressure exerted by the seven cylinders 120 on the first or upstream roll 112 is It is small enough to cause a relatively gradual increase in KE force as soon as the compound enters. This facilitates the entry of the water-containing warm compound into the upstream nip. main roll and the upstream pressure roll both have a D nourometer hardness of 65 and can be considerably deformed. Therefore, this pressure increase causes the above-mentioned keratinous viscosity mixture to be put into the two tubes. After that, the pressure is adjusted to the point where the maximum pressure is reached, that is, the pressure is approximately 4,218. , y/Crn2 (approximately 60 psi) when the mixture is long Center of nozzle 1 (as you go deeper, a significant amount of water is gradually squeezed out of the mixture) The slope is sufficient. A significant amount of free water will enter the mixture into the long first and second knobs. Continuously squeezed out of the clay mixture so that it flows out of the mixture at the edge of the clay mixture. was observed. The following preferred embodiments: The diameter of the elastomer material of the roll, the diameter of the pressure roll and the elastomer material Considering the thickness, the coating has a relatively gentle slope at the beginning of the pressure The force profile, i.e. the force profile, can be generated to ensure that it is deformable. sea urchins are selected. Such pressure increase gradient (Figures 15A to 15C (tangent line in () (denoted by If the flow behaves like a shell, it is necessary to keep this mixture in the upstream solenoid. It is important because it is a testimonial rose.

Advantageously, the gills forming the covering of the king roll 104 and the pressure rolls 112 to 118 The deformability of the stroma curve is determined by the belt 142 and A seal formed on the edge of 144 forces the mixture outward from the side edge of the belt. It is also important to ensure that the information is not exposed. In particular, collaboration One layer of elastomer on both the opposed main roll and pressure roll seals each Because it deforms due to the obstacles formed by the strip, it is relatively large. Pressure is applied to the continuous side edges 1fc of the opposing belts, pulling the wide edge areas of the belts together. to force. This high pressure is due to the fact that the mixture leaks from the side edges considering its width. f is sufficient to prevent

14A to 14C and 15A to 15c show various pressure rolls 1. 12′ to 114′ (“C” where the elasticity or deformability of the formed layer is different Another embodiment is shown. In this implementation example 1C, the upstream port is ’ has a comparative terms and conditions elastomer material MJ], 13, for example, this elastomer material Stomer material Rid: Neozolene elastomer with a hardness of approximately 1°. Approximately 2.54Crn (approximately 1 inch) thick and approximately 60.9.6α (approximately 2.4 It is best to use one with an outer diameter of 1 inch. Add 0 The next addition downstream from the king roll 112' (Figure 14B) is approximately 65 It is preferable that the layer has a hardness of 1 to 5, and its thickness and outer diameter are equal to that of the upstream roller. 112'. Single (belt 14 shown with virtual outline) The elastomer of the next pressure roll 116' in the running path 2' and 144' The layer preferably has the same deformation properties as the second roll 114'. Downstream roll 118 ' (Figure 44C) has an elastomer coating with a hardness of approximately 55 knots. It is best to have the same external shape and thickness as other processing rolls. Smell it downstream Roll 1#jll main roll coating] Harder than 05 (i.e. less likely to deform) covered with a layer.

In this embodiment, the main roll 104' has a hardness of approximately 350 nodules. N12, 54 cm (1 year) of elastomer covering 1 body 105 with It has a total outer diameter of 121, . It is 92Cjn (approximately 48 inches). write The layer 113 bonded by the upstream rolls], ]2'l has relatively high deformability, and The running path of rolls 1142' and 144' (contacting successive rolls 114' to 118') The combined layers have increasing hardness (i.e. each successive layer has a comparatively high deformability under instep force). target is small).

7JI] The gradual increase in the stiffness of the elastomer of c-roll 112' to IJ8' is , taking into account the increased solids content of the mixtures on which these rolls act. upstream The roll 112' provides a very gentle flow when the mixture initially enters C nip 0 The surface is very easily deformed, as is the case with J1's Senriki Masu 7JQ. . Figure 15A: Initial increase in pressure exerted on the mixture as it enters nip 0 is denoted by the tangent 'ra' at f''L, such a tangent (also The lofil curve already shows the slope of the curve at a point I7 tangent to the curve at one coordinate. Ru. Maximum pressure pa +, -t: Processing roll and main roll (see Figure 14A (see diagram) approximately applied by a pair of hydraulic cylinders 120' acting on the With a constant predetermined bias pressure, the elastomer layer 113 of the pressure roll and the king roll and 105th deformability.

As the bias pressure increases, the elastomer layer becomes more compressed and The slope of the illustrated curve at the entrance to the second buff 0 is caused by that deflection of the material. It will be noted that due to the relative decrease in deformability, the angle becomes smaller. general (If desired, the elastane of the upstream pressure roll can be adjusted depending on the specific flow behavior of the aqueous mixture.) May further increase the thickness of a layer or increase the deformability of such a layer. Therefore, such a layer may be made from a softer elastomer, thereby Reduce the slope of the pressure curve at the entrance to the flow nip.

15B and 15C respectively show the pressure downstream of the first roll 112'. Pressure profile for each relatively hard elastomer layer of rolls 114'-118' The figure shows the fill curve. When it passed through the two upper reaches, it partially escaped to the extent of kanashi. The mixture that has been watered has a higher solids content, and the mixture is smelt: It is possible to introduce a mixture of two horns in which the power exerted on the body increases at an even more rapid rate. The flow behavior is as follows. Considering the progressive drying of the mixture, the hardness of the mixture is 65 mm. The initial slope of the curve of FIG. 158 for the roll 114' of As shown in Figure 1, the slope for the upper roll is approximately 4.

Also, a progressively larger, more or less constant bias pressure is applied to the pair of cylinders 122' and It is noted that rolls 114' and 118' are joined by 126'.

Therefore, when the mixture (also passed through the nip associated with the second roll 114') It immediately experiences a steep rate of pressure increase, followed by a higher maximum pressure. This most A pair of hydraulic cylinders 122' (Fig. 148) associated with a large pressure ti Not only does it correspond to the increased pressure lζ, but also the elastomer layer of the roll It also corresponds to an increase in hardness. Also, the residence time of the mixture in the second and third ninozo; is reduced due to a reduction in the contact area between the main roll and the associated pressure roll.

The downstream roll 118' is less deformable than the handling body 105 of the main roll 1 '04'. It has a single layer of elastomer.

As stated at the beginning, this difference (・) It is provided by forming the final pressure roll of a hard elastomer.

As explained in connection with Figure 28, □, when the last two pieces of cake are removed, Due to the gill action exerted between the inner layer of the upper belt 142' and the cake, the lower It tends to stick to the inner layer of bell 1144'. Therefore, it is added at the immediately previous nip. Due to the increased hardness of the downstream roll compared to the drawing force, a large With Paiaska <-6, it is easier to remove the liquid from the already dehydrated mixture. Not only does it have the tendency to expel the body, but it also pushes the belt into the softer king roll covering. By squeezing, its hardness makes it easy to peel the cake from the upper belt1 ( do.

For carrying out the invention (in its best contemplated mode shown and described herein) , the invention 5) without departing from the recognized subject matter 1 (amendments and Obviously, changes can be made.

FIG/ F/6.　2A.

F/G, 4° FIG, /4A, FIG, 15A F/G, /4θ　F/θ-75g Showa year, month, day Mr. Kazuo Wakasugi, Commissioner of the Patent Office ■Indication of case PCT/US831001083, person making amendment Relationship to the case: Applicant Name: Envirotech Corporation 4, Agent 5. Date of amendment order: October 11, 1982 6. Subject of amendment: Translation of drawings 7. Contents of the amendment as shown in the attached sheet FIG, /4A, hHead A.

FIG/4C, FIG15C international search report

Claims (1)

[Claims] 1. a frame, a cylindrical main roll rotatably mounted to the frame, a plurality of cylindrical pressure rolls, the pressure rolls parallel to and circumferentially around the main roll; means for rotatably mounting the pressure rolls on the frame so as to be rotatably mounted adjacent to the main roll in spaced relation; and means for individually pressing each of the pressure rolls against the main roll; equipment and The water-containing mixture is applied to each of the main roll and the pressure roll. belt around part of the main roll for continuous conveyance during the nip between the means for circulating the main roll and the pressure roll, each upstream roll of at least one of said main roll and said pressure roll having on its outer surface a layer of elastomeric material adapted to substantially deform under pressure. and press the upstream pressure rolls individually against the main roll. A method for squeezing out a liquid phase from a water-containing mixture, characterized in that a dipping reservoir device applies a predetermined biasing force to the water-containing mixture to allow the mixture to undergo a relatively gradual increase in pressure. Device 2 The device for pressing the top curing pressure roll against the main roll includes a pair of first hydraulic cylinders that act on both ends of the pressure roll and a piston applied to the upstream roll. Hydraulic fluid is serialized at a predetermined constant level to maintain the power at a nearly constant predetermined level. 8. A device as claimed in claim 7, characterized in that the device comprises a first adjustable pressure regulating means for supplying the reservoir to the container. A second pressure roll downstream of the filter, adjacent to the upstream pressure roll of the filter, is coated with a layer of elastomeric material that substantially deforms under pressure to individually separate the second pressure roll. A device for pressing (d) that is greater than the force applied to the upstream roll. The elastomer layer of the second roll is as deformable as the layer of the upstream roll, so that the partially deformed mixture is It was transferred during the nip between the 20-roll and the king-roll. 2. A device according to claim 1, characterized in that the device is subjected to a relatively steep rate of pressure increase. 4. The device for pressing the second pressure roll against the main roll includes a pair of second hydraulic cylinders acting on the ends of the second pressure roll, and a substantially constant predetermined pressure greater than a predetermined level of the first pressure adjustment device. supply hydraulic fluid to a second pair of cylinders at Claims characterized in that the second pressure regulating device is provided for applying a biasing pressure to the second processing o-roll that is greater than the pressure applied to the upstream pressure roll. The squeezing device according to item 5. 5. A single layer of elastomer is formed on a second pressure roll that is in contact with and downstream of the upstream pressure roll, and that the layer of the second roll is not deformable in the same way as the elastomer layer of the first pressure roll. A squeezing device according to claim 1. 6-1 - The flow and the 7 layers of elastomer of the second pressure roll are of equal quality. The squeezing device according to claim 5, characterized in that the elastomer layer of the second roll is harder than the layer on the second roll. virtually resistant to deformation The belt has a single layer of elastomer thereon, and the belt is connected to the main roll and the final downstream pressure roll. A device is provided to circulate part of the downstream pressure roll in small steps between the roll and the downstream pressure roll, thereby eliminating the difference in hardness between the roll and the downstream pressure roll. The squeezing device according to claim 1, characterized in that the squeezing device facilitates holding of the compound on a belt. 8. The pressure rolls downstream of the upstream pressure roll and having a layer of elastomer each have a layer of elastomer that is more difficult to deform than the elastomer of the upstream pressure roll, so that the mixture is transferred between the main roll and the upstream pressure roll. Due to the relatively gradual rate of pressure increase initially exerted on the mixture as it is transferred into the nip between the pressure rolls, 2. A squeezing device as claimed in claim 1, characterized in that the deliquified mixture facilitates subjecting the deliquified mixture to partial pressure increases of relatively steep gradients. 9. The elastomer layers of the upstream roll and said downstream roll are of equal thickness. The elastomer layer of the downstream pressure roll is harder than the elastomer layer of the upstream roll. 9. The squeezing device according to claim 8. 10 At least 2 of the previous 1 bow lower IN, 0 - 1 call of elast [・ma] The first layer is of different hardness, gi + Sumi The harder force of the rolls of at least 21 hard σ) roll υ 9. The squeezing device according to claim 9, characterized in that the squeezing device is located downstream of the force D roll. 11. All of the pressure rolls listed in iM have a single layer of elastomer, and the mixture is The forward At least 214 roll layers (with extraordinary elastic deformability and force) of the first and second rolls downstream of the above-mentioned upstream rolls are 1 and 2! It's hard to deform from the inside of the roll. 2. The calibration device according to claim 1, wherein the peg roll is in danger of lowering the other. 12 Add and install a second endless belt that is not in a facing relationship with the first belt and runs together therewith, and the belt is connected to the main roll and the upstream pressure roller. Squeezing device according to claim 1, characterized in that it is provided with a device for introducing the water-containing mixture between the belts before entering the nip between the belts. 1. Each of the belts is adapted to retain solids during liquid expression, has a relatively dense mesh size to facilitate stripping of the dehydrated mixture, and is adapted to retain solids during liquid expression. The first fin layer, the liquid layer, and the main roll are oriented in the horizontal direction (are facing the respective surfaces of the pressure rolls to enhance the evacuation of the squeezed liquid from the first layer). and a second layer that is relatively porous, coarse and hard to provide longitudinal strength. Claim 12.1 (The drawing device as set forth in claim 12. 14. The squeezing device according to claim 13, characterized in that: 15. At least one of the two belts has a third layer between its first and second layers (31), and the third layer is made of relatively thick absorbent felt. 16. All pressure rolls are provided on their outer surface with a layer of elastomer material so as to substantially deform under pressure, and furthermore, a second an endless belt and a second belt for circulating through a zone upstream of the two horns associated with the upstream pressure rolls of the sump for receiving the wet mixture between the belts. and means for clamping the side edges of the belt together to prevent lateral leakage of solids from the respective compression zones between the king roll and the pressure roll. The squeezing device according to claim 1, characterized in that: 1Z The tightening means is characterized in that it includes an elastomer straddle joined to the main roll adjacent to each side edge of the main roll so as to overlap each side edge of the belt. A squeezing device according to claim 16. 18. The squeezing device of claim 17, wherein each strap has a thickness at least as thick as the aqueous mixture received and spread between the belts. 19 The tightening means comprises a strap attached to each opening of the main roll (adjacent to the winding of the king roll) with the belt sandwiched between the belt and the strap. and a device for applying tension to said stranopsis in order to bias the strap toward the king roll, interposed between the nozzle and the king roll. Claim 16: The protruding device according to claim 16. 20 The device 2 for circulating the first belt and the device 2 for circulating the second belt. The device is arranged to cause both belts to tail each other and tightly engage the main roll in the zone upstream of the two horns between the upstream pressure roll and the main roll. and the device for applying tension to the strap 0 20. The squeezing device according to claim 19, wherein the squeezing device is adapted to continuously apply to the first belt within the area. 21 The strap 0 is still attached to the main roll when it hits the main roll by the pulley. as set forth in claim 20, characterized in that the Squeezing device. 22 The above tightening method may be applied at least to the side edges of the first belt ((each sewn) 17. A squeezing device according to claim 16, characterized in that it is provided with an endless strap. 2. The first layer of elastomer of the main roll is provided with holes, and the king roll has a conduit portion that communicates with the inside of the first layer of perforated elastomer, a liquid take-out portion, and two horns for squeezing out the liquid. 2. The squeezing device according to claim 1, further comprising a conduit for inwardly extracting the liquid from the perforated elastomer layer of the roll and a valve portion for connecting a portion of the liquid to the liquid extractor. 24 Furthermore, the pressure roll is interposed in the circumferential direction between two of the pressure rolls and the engine is A perforated roll part that is urged toward the main roll so as to rotate against the dress pelt, and a perforated roll part that supplies cleaning liquid to the belt and the belt. 27. The squeezing device according to claim 26, further comprising means for distributing the mixture on the main roll and removing it from the perforated layer on the main roll. 25. Lips are formed on the surface of the elastomer layer of at least some of the main roll and the pressure roll in the length direction at circumferential intervals. +2 output device. 26. All of the pressure rolls are coated with a single layer of elastomer, and relatively deep corrugations are formed in the layers of the king roll and the pressure roll at regular intervals in the length direction, and the corrugations of the pressure roll are formed in the layers of the pressure roll. (1) is formed so as to mesh with the waveform of the main roll (1) when the roll rotates. Squeezing device. 2Z At least one endless filter adapted to accept a hydrated warm compound A belt, a plurality of pressure rolls, and a series of rollers spaced apart in the direction of belt travel. a device for circulating the belt through the two horns; and a device for circulating the mixture through the two horns on the belt. a modification of the reservoir for squeezing the liquid phase out of the aqueous mixture, comprising a reservoir device for pressing said roll section and a pressure roll against each other so that the liquid phase is squeezed out of the mixture when the liquid phase is squeezed out of the mixture; In a suitable device, at least two of the pressure rolls are coated with a single layer of substantially deformable elastomer, and the upstream one of the pressure rolls is initially coated with a water-containing mixture. The water-containing mixture is preselected to undergo a relatively slow rate of pressure increase as it is transferred into the first and second cylinders. a first device for applying a biasing pressure to the upstream pressure roll at a selected predetermined level; Apply pressure to the reservoir to squeeze out more liquid phase from the already partially deliquified mixture. A second hand that applies a relatively high pressure to the other of the at least two rolls. An improved squeezing device characterized by comprising steps. 28 The first device for applying biasing pressure to the upstream pressure roll applies the biasing force applied by the pair of first oilfield cylinders and the upstream roll acting at both ends of the pressure roll to a predetermined amount. Hydraulic fluid is supplied to the 7 cylinders at a predetermined constant level to maintain it at a nearly constant level. 2. An improved squeezing device as claimed in claim 1, characterized in that it comprises first adjustable pressure regulating means of the reservoir. 29 The second device that applies the biasing force to the second pressure roll applies the force applied by the upstream roll. The second roll is pressed with a large biasing force, and the elasticity of the second roll is 28. The improved squeezing device of claim 27, wherein the toma layer is as deformable as the upstream roll layer. 30 The second device for applying a biasing force to the second pressure roll includes a pair of second hydraulic cylinders that act on the ends of the second pressure roll, and a predetermined pressure greater than the predetermined level of the first pressure adjustment means. A second oil rf7') of -λ1 is applied to the hydraulic fluid at a nearly constant level of 31. The improved squeezing device according to claim 29 (29), characterized in that the elastomer layer formed on the second pressure roll is Upstream processing roll nigist 28. The improved drawing device according to claim 27, wherein the improved drawing device is less deformable than the material. 62 Eras of upstream and second pressure rolls! 62. The improved draw-out device of claim 61, wherein the elastomer layers of the second roll are of equal thickness and the elastomer layer of the second roll is harder than the layer of the first roll. 36 The opposing roll portion consists of a single roll coated with a single layer of elastomer that substantially deforms under pressure, and includes the last downstream pressure roll +d, main roll of the plurality of pressure rolls. The elastomer layer of the single roll has a hardness difference with the upper layer that facilitates retention of the dehydrated mixture on the belt. It has a single layer of non-deformable Nistomer, further K, the last downstream pressurized roll of a single roll. The belt is circulated from the Ninozo between the two as part of the downstream Toguchio roll. Claim 27, characterized in that the improved aperture diaphragm described in Output device. 64'' - pressure rolls downstream of the flow pressure roll (d) each having a layer of elastomer that is more difficult to deform than the elastomer of the upstream pressure roll; During the transfer of the mixture into the associated first and second meso-components (C), a relatively steeper rate of pressure increase was initially exerted on the mixture ((C) than the relatively steeper rate of pressure increase exerted on the partially deliquified mixture. to make it easier for students to receive The improved squeezing device according to claim 27, characterized in that: 35 The elastomer layer of the upstream roll and the downstream roll are of equal hardness, and the elastomer layer of the downstream pressure roll is harder than the elastomer layer of the upstream roll. 65. The improved squeezing device of claim 64. 36. The elastomer layers of at least two of the downstream rolls are of different hardness, and the harder of the at least two rolls is located downstream of the other roll. An improved squeezing device according to Scope No. 35. 6Z All of the pressure rolls have a single layer of elastomer and the pressure rolls have a In other words, the layers of at least two rolls downstream of the upstream roll have different elastic deformability, and the least deformable roll of the two rolls allows the mixture to gradually and steeply deform in the direction of belt travel. 28. The improved drawing device of claim 27, wherein the drawing device is downstream of the other so as to be continuously subjected to a proportional pressure increase. 38 A second belt that faces the first belt and runs together with the first belt. belt and both belts enter the nip between the upstream pressure roll and the opposing roll section. 28. The improved squeezing device according to claim 27, further comprising means for introducing the hot water-containing compound between the belts before the water-containing mixture is introduced between the belts. 39 Each of said belts includes a first filter media layer adapted to retain solids during extraction of the liquid, wherein: 1) the first filter media layer is adapted to retain solids during extraction of the liquid; In order to facilitate peeling, it is made into a water-containing mixture with relatively dense horns/husks, and is further applied to the belt by facing two seven sides of each of the IC and rJ roll parts or the pressure roll. at least two layers including a second layer that is relatively hard and relatively porous to enhance drainage of the squeezed liquid from the first layer; 40. The improved squeezing device of claim 38, wherein the first layer of each belt is comprised of monofilament media and the second layer is comprised of multifilament media. 40. An improved squeezing device according to claim 39, characterized in that it is made of: 41. The improved diaphragm of claim 39, wherein at least one of the two belts comprises a third layer, the third layer comprising a relatively thick absorbent raw felt. 42 All of the pressure rolls are each equipped with an elastomer that becomes substantially deformable under pressure. a second endless belt and a second endless belt. a device for circulating the belt along with the first belt through a zone upstream of a nip associated with an upstream pressure roll into a two-way between the opposing roll section and the pressure roll; and means for tightening the side edges of the belts together to prevent lateral escape of the mixture from each of the two tubes. , an improved squeezing device; 43. said opposing roll portion being a member roll; said tightening means being adjacent to each side edge of said single roll overlapping a respective side edge of the belt; One row 43. The improved squeezing device of claim 42, comprising an elastomeric strap joined to the elastomeric strap. 44. The improved squeezing device of claim 43, wherein each strut has a thickness at least as thick as the water-containing mixture when received and spread between the belts of said zone. . 45 The opposing roll portion comprises a fist-roll, and the tightening means is arranged adjacent to each side throat of the single roll with both belts interposed between the single roll and the single roll. comprising a respective accompanying strap and a device for tensioning the strut to bias it towards the single roll; An improved squeezing device according to claim 42, characterized in that: 46 The device for circulating the first belt and the device for circulating the second belt. The said devices are positioned against each other and above the nip between the upstream pressure roll and the main roll. The device 1 for tensioning the straps is configured to firmly engage both belts against a single roll in said zone (C), and the device 1 for tensioning the straps is configured to securely engage both belts against a single roll in said zone. Be sure to keep it pressed against the edge. Claim 46 (C) The improved squeezing device as set forth in claim 46. The improvement according to claim 46, characterized in that the device is guided away from the drawing device. 48. The opposing roll portion is more than a single roll, and the tightening means (an endless strug sewn to the llllljR portion of the belt) is characterized in that - an improved squeezing device. 49. The opposing roll portion consists of a single roll having a single layer of perforated elastomer; Note: The roll has a conduit portion that communicates with the inside of the perforated elastomer layer, a liquid extraction portion, and a liquid extraction portion for extracting the liquid squeezed out in the Ninov 0 inward from the perforated elastomer layer of the single roll. (The improved squeezing device according to claim 27, further comprising: a valve portion for connecting the conduit portion to the liquid take-out portion.) 50. cylindrically interposed between the rolls and encircled. a perforated roll section biased toward the single roll to push and rotate the dressing belt, and a cleaning liquid flowing through the belt and the mixture on the belt, and for removal from the perforated layer of the single roll; 50. The improved squeezing device according to claim 49, further comprising means for supplying the perforated roll to the perforated roll portion. 51. The opposing roll portion 1d is made of a single roll having a single layer of elastomer, and ribs are formed in the length direction at circumferential intervals on the surface of the single elastomer layer of the single roll and the surface of the single elastomer layer of the pressure roll. The improved squeezing device according to claim 27, characterized in that: 52 A frame having a frame and a plurality of vacuum tubes each connectable to a vacuum source. a first drain section mounted on the frame; a second drain section mounted on the frame, each having a plurality of vacuum pans each connectable to a vacuum source; A king roll is rotatably attached to the frame, and a frame is parallel to the main roll. a plurality of pressure rolls, wherein at least one upstream of the green roll and the pressure roll is coated with a substantially deformable elastomeric material. and further includes a device for pressing the pressure rolls individually against the main roll at a predetermined pressure, and a first drain section communicating with the vacuum sent through the pan of the first drain section. After that, a part of the main roll is twisted, and then the first endless belt is hung so as to pass through the second nozzle between the king roll and the pressurized coal, and the second drainage part. a second drainage section in communication with the vacuum delivered via a vacuum tube, and then around the main roll in facing relation with the first filter belt; After that, a belt is passed between the main roll and the pressure roll together with the first belt. separating the liquid phase from the diluted slurry, comprising a second endless filter belt suspended over the belt and a reservoir device for supplying the diluted slurry onto the first belt. A device that keeps you away. 53. Convey the water-containing mixture on a filter belt; between the rolls having cooperating opposing elastomer layers that are deformable and deformable in a substantial manner. The rolls forming the upstream nip are urged toward each other with a predetermined force to compress one layer of elastomer by a controlled amount; Thus, as the water-containing mixture progresses through such an upstream nip-\belt, a given ratio The mixture is subjected to a relatively gradual increase in pressure; the rolls associated with at least two of the two parts in the direction of belt travel apply a greater biasing pressure to compress the associated elastomer layer. , exerting pressure on the partially deliquid mixture in the upstream two-way pipe at a steeper rate than the relatively gradual rate associated with the first two-point. Note method that squeezes out the liquid phase from a water-containing mixture. 54. Claim 56 further characterized in that rolls downstream of said next nip are urged with progressively greater forces to subject the mixture to progressively steeper rates of pressure increase in successive nips. The method described in section.