JP5848029B2 - Feeder block with filter - Google Patents

Description

  The present invention is a granulator (briquette machine) for granulating a raw material containing only a normal powder and a liquid containing water, a binder, etc. into a pellet form, or the raw material is formed into a flake shape or a plate shape. The present invention relates to a feeder block with a filter such as a wedge wire screen applied to a compactor for compression molding.

  In recent years, as a means for safely and economically transporting or storing a raw material gas such as natural gas, a method of using a hydrate (gas hydrate) generated by reacting a raw material gas with raw material water has attracted attention. .

  In general, gas hydrate is produced by reacting raw material gas such as natural gas and raw water under high pressure and low temperature, but the produced gas hydrate is in a slurry state with unreacted raw water. Become. Then, in order to improve the handling property at the time of transportation and storage, after dewatering the slurry-like gas hydrate, it is processed into a pellet form with a granulator.

  The granulator supplies a granular gas hydrate between a pair of molding rolls having a large number of molds (pockets) on the outer peripheral surface and compresses them into pellets. The water (unreacted water) contained in the gas hydrate is squeezed out. Then, water accumulates on the biting side of the forming roll, and the biting of the gas hydrate deteriorates, making it impossible to produce the pellets as designed.

  In order to solve such a problem, it has been proposed to provide drainage means such as a slit or a labyrinth on the wall surface of the hopper that temporarily stores the gas hydrate supplied to the forming roll (see, for example, Patent Document 1). ).

  However, there is a problem that the slit or labyrinth is blocked by the amount of water drained from the slit or labyrinth provided on the wall surface of the hopper, or by gas hydrate accompanying the drainage.

JP 2007-269908 A

This onset bright object (object), without clogging, drained of water and binder such bite occurs on the side of the forming roll, or smoothly vented during granulation of the powder It is to provide a feeder block with a filter, such as a wedge wire screen, that can be performed.

A feeder block according to claim 1 of the present application is attached to a lower part of a hopper, and a raw material supply hole for supplying the raw material in the hopper to a biting side of a pair of forming rolls, and a drainage hole reaching the raw material supply hole a feeder block with, characterized in that covering the entrance of the drainage holes in the wedge wire screen block.

A feeder block according to claim 2 of the present application is mounted on a lower part of a hopper, and a raw material supply hole for supplying the raw material in the hopper to the biting side of a pair of forming rolls, and a drainage hole reaching the raw material supply hole The entrance of the drainage hole is covered with a wedge wire screen block or a porous body .

  As described above, the present invention is the upstream side of the flow of the raw material from the point of entry of the pair of rolls, and the inlet of the drainage hole provided in the portion located on the wall surface of the raw material supply container near the tip of the push screw Is covered with a wedge wire screen block, so that even if it is applied to a granulator (briquette machine) or a compactor, etc., gas or water squeezed to the biting side of the roll without causing clogging, binding agent, etc. The liquid can be discharged.

  That is, the wedge wire screen has a triangular cross-section of the wire constituting the screen, so the contact point when the solid (raw material) passes is small, the solids are easy to pass, and clogging is difficult. High dewaterability.

  In addition, since a wire rod thicker than a general wire mesh (mesh) is used, even a slit with a small opening has high strength and accuracy. Moreover, since it is rich in workability, it is also possible to deal with conical and cylindrical shapes. Further, since the screen surface is flat, the solid material tends to flow smoothly on the screen surface. Further, the gas and liquid to be separated are highly permeable, and the aperture ratio can be increased.

  Further, the present invention attaches or removes the wedge wire screen block easily because the cylindrical or funnel-shaped wedge wire screen block is mounted in the raw material supply hole of the feeder block (base block of the raw material supply hopper). Can do.

It is sectional drawing of a briquette machine or compactor provided with the feeder block which concerns on this invention. It is AA sectional drawing of FIG. It is a top view of the feeder block which concerns on this invention. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a side view including the partial cross section of a funnel-shaped wedge wire screen block. It is operation | movement explanatory drawing of a wedge wire screen block.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the compactor 1 has a feeder block (a base block of a raw material supply hopper) 3 according to the present invention attached to a lower portion of a hopper 2. As shown in FIGS. 3 to 5, the feeder block 3 includes a square head 4 in plan view, and a pair of front and rear legs 5 a and 5 b provided integrally with the head 4 immediately below the head 4. It is configured. The head 4 has a funnel-shaped raw material supply hole 6 penetrating in the vertical direction, and the legs 5a and 5b have the inner side 7 as a cheek plate mounting portion.

  As shown in FIG. 4, the feeder block 3 is provided with two drainage holes 8 a and 8 b that reach the raw material supply holes 6 on both front and rear surfaces of the head 4. In addition, a funnel-shaped wedge wire screen block 9 is detachably mounted in the raw material supply hole 6.

  For this reason, the entrances of the drain holes 8a and 8b are covered with the side surfaces of the funnel-shaped wedge wire screen block 9. Further, the inlets of the drain holes 8 a and 8 b are communicated by a communication groove 10 provided around the raw material supply hole 6.

  As shown in FIG. 7, the wedge wire screen block 9 is formed by arranging eyes (slits) 12 by arranging metal wire bodies 11 having an inverted triangular cross section on a support body 13 at equal intervals. The body is less clogged, the screen is strong, and the gap (slit) is highly accurate.

  As shown in FIG. 6, the funnel-shaped wedge wire screen block 9 has a plurality of metal elongated supports in which wedge-shaped wire bodies 11 are arranged in multiple stages to form a funnel shape, and the back surface thereof is arranged vertically. The structure is fixed to the body 13 by welding. And the flange 14 is provided in the large diameter part side, and it can fix now to the head 4 of the feeder block 3. FIG. In addition, when the raw material supply hole 6 is cylindrical, a wedge wire screen block formed in a cylindrical shape is applied.

  Returning to FIG. 1 and FIG. 2, a pair of forming rolls 15 a and 15 b are arranged so as to face the raw material supply hole 6 of the feeder block 3 according to the present invention. The front and rear ends on the biting side of the pair of forming rolls 15a and 15b are sealed by the cheek plates 16 and 16 attached to the inner side 7 of the leg portions 5a and 5b of the feeder block 3.

  As shown in FIGS. 1 and 2, a push screw 18 having a spiral blade 17 is provided in the hopper 2. The pushing screw 18 has a spatula-shaped adhesion preventing member 20 on its shaft portion 19, and scrapes off the material adhering to the inner wall surface of the hopper 2. The lower part 21 of the hopper 2 has a funnel shape. Further, the outer peripheral surfaces of the pair of molding rolls 15a and 15b are flat surfaces without pockets.

  Then, when the pair of forming rolls 15a and 15b and the pushing screw 18 in the compactor 1 are driven, as shown in FIGS. 1 and 2, the raw material containing liquid such as water and binder in the hopper 2 (for example, , Gas hydrate) a is supplied to the biting side of the pair of forming rolls 15a and 15b through the raw material supply hole 6 of the feeder block 3.

  Then, the raw material a that is inserted and compressed into the pair of forming rolls 15a and 15b becomes a flake-like or plate-like product c and is pushed downward from between the pair of forming rolls 15a and 15b. At that time, a liquid b such as water or a binder contained in the raw material a is squeezed out to the biting side of the pair of molding rolls 15 a and 15 b, and this liquid b is in the raw material supply hole 6 of the feeder block 3. The drainage holes 8a and 8b are drained through the slits 12 (see FIG. 7) of the funnel-shaped wedge wire screen block 9 attached to.

  In the above description, the case where the feeder block 3 according to the present invention is applied to a compactor that compresses and molds a raw material containing a liquid such as water or a binder into a flake shape or a plate shape has been described. For example, it can also be applied to a granulator (briquette machine) that granulates the raw materials into pellets.

  Moreover, as a raw material, the raw material only of normal powder can be applied other than the raw material containing liquids, such as water and a binder, as mentioned above.

  Further, the direction of the slit 12 of the wedge wire screen block 9 may be either the direction of drilling the raw material supply holes or the direction intersecting the direction of drilling of the raw material supply holes.

  Furthermore, it is also conceivable to use a filter (for example, a porous body) for separating gas or liquid instead of the wedge wire screen block 9.

3 Feeder block 6 Raw material supply holes 8a, 8b Drain hole 9 Wedge wire screen block 16 Teak plate

Claims (2)

  A feeder block that is attached to a lower portion of the hopper and includes a raw material supply hole that supplies the raw material in the hopper to the biting side of a pair of forming rolls, and a drain hole that reaches the raw material supply hole. A feeder block characterized in that the entrance of the liquid hole is covered with a wedge wire screen block. A feeder block that is attached to a lower portion of the hopper and includes a raw material supply hole that supplies the raw material in the hopper to the biting side of a pair of forming rolls, and a drain hole that reaches the raw material supply hole. A feeder block characterized by covering the entrance of a liquid hole with a wedge wire screen block or a porous body .

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