JPS62502109A - Organic gas generation treatment equipment - 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] Organic gas generation treatment equipment The present invention relates to equipment for gas generation treatment of organic substances, particularly for fermentation and ripening. More details Specifically, the invention relates to a device as defined in the well-known part of the claims.

The device according to the invention comprises a horizontal processing device adapted to rotate about a horizontal central axis. It consists of a drum and means for transporting the material to be treated fixed inside the drum.

When dealing with industrial or domestic waste, most of the waste is non-perishable and solid. It is a substance. Such solid substances, such as sand, gravel, and metals, can be turned into a suspension by settling. high-density substances that are easily separated from the suspension, and a so-called floating ring layer that is easy to float on the top surface of the suspension. It consists of both a low specific gravity substance and a substance that forms.

The purpose of the present invention is to remove the A process driver that allows non-perishable materials to be transported internally more quickly than perishable materials. The present invention is to provide a system within the above-mentioned apparatus.

For this reason, the material transfer means in the device according to the invention are spaced apart in the longitudinal direction of the drum. a fixed support surface extending in the axial direction of the drum and forming an acute angle with the transverse plane of the drum; It consists of a plurality of fixed guide ribs, the sides of which guide the sediment in the drum. The drum is configured to capture and deflect material toward one end of the drum.

As will be clear from the detailed description below, the present invention is directed to Using the downward movement, the guide rib changes the vertical movement towards the exit end of the drum. The substance is transferred to the outlet end as the drum rotates.

In the device related to the present invention, the drum is very large and is suitable for industrial, domestic, and agricultural waste. In the case of a waste aging treatment apparatus, the drum capacity is 10,000 or more. Therefore Dora Even if the drum is immersed in water to reduce the load on the drum support, the drum rotational drive The required rotational moment becomes large. The drive means therefore have a considerable amount of power. However, it must have dimensions that can be applied to the drum, making it expensive.

Therefore, another object of the invention is to provide a driving force used as an external force for the rotation of the drum. The purpose is to significantly reduce or eliminate the need for (1).

In this regard, the present invention creates an imbalance in the distribution of the treated material within the drum. As a means of applying rotational moment to the drum in a predetermined direction, the processing action The gas generated inside (mainly methane and carbon dioxide for the aging process) is used. It is conceptually based.

For this purpose, in the drum of the device according to the invention there are a plurality of bars at angular displacement positions of the drum. A baffle is provided, and the baffle cooperates with the inner surface of the drum to encompass the center axis of the drum. A downwardly opening gas collection space is formed which is spaced apart from the vertical plane.

At least the majority of the generated gas is collected in this collection space during the treatment operation. collected The gas causes the fluid or slurry-like material in the drum to move on both sides of the vertical plane containing the central axis. is not evenly distributed. As a result, most of the processed material is on the vertical plane. It is located on the side opposite to the side where the gas collection space is located, and thus the rotating A moment is applied to the drum, causing the gas collection space and its adjacent portion of the drum to rise. is moved to rotate the drum.

Preferably, the drum is rotated intermittently. In that case, the ripening treatment equipment is It is best to have a control means to stop the drum at each position.

The details of the invention will be explained below using the accompanying schematic drawings.

FIG. 1 is a partially cutaway side view of a processing apparatus in which the present invention is implemented, that is, a ripening processing apparatus; FIG. 3 is a sectional view of the device of FIG. 1; Figures 3 and 4 show the rotational state of the processing drum, each in its stopped position. and a cross-sectional view of the drum in rotational movement between two stop positions; FIG. 5 is a partially cutaway perspective view showing a means for transporting the sediment and the floating slag layer in the direction of the central axis.

As shown in the figure, the device according to the present invention is made of concrete or the like and is temperature-controlled. It has a housing (11) filled almost completely with water (12). housing( 11) Inside, a maturing tank formed by a horizontal cylindrical drum (13) is sealed. , the cylindrical drum is almost entirely immersed in water and rotates around a horizontal central axis (L). It is supported by several support rollers (14) so as to One side of the drum (13) The end wall (15) is provided with a supply hand for continuously or intermittently supplying the substance to be treated into the drum. An inlet pipe (16) is provided which is connected to the stage (17) via a swivel coupling. Ru. This substance is primarily an aqueous suspension or slurry of organic substances, including inorganic substances, Non-ripenable solid materials may also be included. In the center of the other end wall (18) of the drum is a An outlet pipe (19) is provided for the treatment material. The inlet pipe (16) and the outlet pipe (1 9) are also tightly fitted into the end walls (IIA, IIB) of the housing (11). It is.

Except for the inlet and outlet tubes in the end walls (15, 18), the drum is sealed and made of plastic. , made of sheet metal, concrete, etc.

The inside of the drum (13) is divided into two spaces by the transverse partition wall (20). The two spaces are a central opening (2OA) provided in the partition wall and a space provided near the circumference. They communicate with each other through a small opening (20B). The partition (IIC) The housing (11) is partitioned accordingly. Two of the housings partitioned in this way The two cavities accommodate water of different temperatures, and the two cavities (13A, II B) The materials to be processed within the system are kept at different temperatures. Of course, the drum and housing Each space may be divided into two or more spaces.

The central opening (20A) of the partition wall (20) of the drum allows the drum space for the material to be treated. (13A) to the drum space (13B) becomes possible.

Inside the drum (13) are three flat baffles (21A).

21-B, 21C) extend the entire length of the drum, and the inner surface of the drum (13C ) are fixedly spaced from each other at an angle of 120 degrees in the circumferential direction. Figures 3 and 4 The width of the baffle is approximately equal to the radius of the drum, but the axis of the baffle is The direction line portions, that is, the radially inner free ends (22A, 22B, 22C) are aligned with the central axis (L ) and the radius outer edge of each baffle fixed to the drum (RA, RB, R They communicate with each other in one direction from o). Adjacent baffles (21A, 21B .

The inner edge of 21C) has an open passage or gap between the same earthen floors (24A, 24B, 24 The width of C) is not a determining factor, but the preferred width is 0.2 to 0.86 times the inner radius of the drum. It is. Similarly, the width of the baffle is determined by the radial outer edge fixed to the inner surface (IIC) of the drum. and the radially inner free edge (22A-22C).

The drum is supported to rotate intermittently at every rotation angle of 120 degrees, and one revolution consists of three stages. It consists of Although the control device is not shown, it divides the rotational movement of the drum into stages every 120 degrees. It is supposed to be done. All, or at least most of the power for rotational motion is Generated by materials being processed in the drum. That is, Figures 3 and 4 below As explained above, the gases generated during the aging process cause "imperfections" in the distribution of the treated substances. Power is generated as a result of "equilibrium."

Figure 3 shows the drum (i3) in one of three stopping positions. vinegar.

While the drum is in the stop position as shown in Figure 3, ripening is carried out on the left side of the drum (13). Most of the gas generated by the aging product located below the baffle (21A) The gas generated inside the drum is connected upwardly and laterally to the inner surface (13C) of the drum (13). baffle (21A), and the lower side is the inner surface of the drum and the baffle (21A). A), the horizontal surface (SA) of the ripening material, that is, the floating layer (F), extends between The gas is collected in the gas collection space (25A) divided by

The amount of gas collected in the gas collection space (25A) gradually decreases during the period when the drum is stopped. The horizontal plane, (SA), which is the lower limit, is gradually pushed down.

Similarly, the gas generated from the aged material below the baffle (21B) is absorbed into the gas collection space ( 26B). but.

The amount of gas generated from the ripening material below the baffle (21B) is It is small compared to the amount of gas generated from the ripening material below (i.e. the amount of material is small). ), and the collected gas in the gas collecting space (26A) is collected from the drum at suitable intervals. The gas is transferred to the gas collection space (25A) through several transfer pipes (27) provided along the entire length. sent.

Of the gas generated during aging in the drum, the portion other than the above is located at the top of the drum. rises into the space (28) and from this space (28) adjoins the end wall (15) the circle of the drum The gas is discharged through a gas discharge port (29B) provided near the periphery.

In the stop position shown, the gas outlet (29B) is located just inside the drum end wall (15). The end chamber (31) provided on the side communicates with the gas exhaust space (30) at the top. There is. This end chamber is always connected to other gas peripheral exhaust ports (29A, 29C). and is filled to some extent with a maturing substance. Gas exhaust space ( 30) has a gas storage chamber (not shown) through a conduit (33) passing through the inlet pipe (16). A gas exhaust hood (32) is provided which is connected to the gas exhaust hood (32).

As is clear from Figure 3, the gas collected in the gas collection space (25A) is Both sides of the vertical plane CC') encompassing the central axis (L) of the drum during the ram stop period. This causes an imbalance in the distribution of ripening substances on the same earth floor in the drum space.

, As a result, the ripening material creates a rotational moment acting on the drum, causing the drum to move as shown in Figure 3. Try to rotate it clockwise.

However, the rotation of the drum is controlled by the control means already mentioned after a certain period of time has elapsed. In some cases, the torque may be increased until the rotational moment reaches a certain value or under other specified conditions. will be blocked until the conditions are met.

When these conditions are met, the drum is rotated 120 degrees and the baffle (21 A) occupies the position of the baffle (21B) during the previous stop period, and the baffle (21B) occupies the position of the baffle (21C) during the previous stop period, and the baffle (21C) occupies the position of the baffle (2LA) during the stop period. Inside the gas collection space (25A) The gas is discharged from the gas outlet (2) which has moved to the top position of the drum due to rotation of the drum (1). 9A)'. The above steps are then repeated.

Since the rotational motion of the drum is relatively fast, the aging material in the drum is The mixture is stirred at high speed to create an all-over mixing action. Due to this stirring action, the The solid light specific gravity part of the liquid becomes easier to separate. This part floats due to its own buoyancy. It floats to the layer (F), is suspended in the drum, and floats on the liquid surface, but these parts are e.g. pieces of plastic film and other lightweight materials often found in household waste. falls under this category.

Due to the above-mentioned rotation of the drum (13), the drum cannot be rotated by external force during normal operation. There is no or almost no need to do so. However, the drum rotates from the outside. Separate auxiliary drive unit available in case of need to apply moments It is preferable to provide the device with a. The need to add an external rotational moment arises because For example, during start-up or operation of a device that is only partially filled with the ripening material. This occurs when the engine is not running or when the amount of gas generated is insufficient. In that case, the drive unit Compared to the case where the drive unit always bears all the driving force required for ram rotation, It is much smaller, has a simpler structure, and is cheaper. As mentioned above, for the purpose of auxiliary drive A drive unit is shown schematically in FIG. 2 and designated by the reference numeral (35). This drive The unit is used in combination with the control unit described above.

The baffles (21A, 21B, 21C) form part of the drum drive mechanism. In addition to forming part of the mass transfer mechanism of the drum (13). for this purpose Therefore, on both sides of the baffle, there is a long distance from the inner surface of the drum (13C) to the inside radius of the baffle. Upright guide ribs (37, 38) extending to the free edges (22A to 22C) are provided. I'm being kicked. The ribs on each side are almost straight and parallel to each other, and the ribs are parallel to each other. The longitudinal edge of the ffle forms an acute angle with a plane perpendicular to the central axis of the drum. bag Of the fully provided ribs, the one facing the direction of rotation of the drum (13) The standing rib (37) (which rotates clockwise in Figures 2 to 5) is located on the inner surface of the drum (13C). ) towards the radially inward free longitudinal edge of the baffle, towards the exit end of the drum. It extends diagonally. The standing rib (38) provided on the opposite side of the baffle is still The exit of the drum when viewed from the inner surface of the drum toward the radially inner longitudinal free edge of the baffle. It extends diagonally in a direction away from the end.

The ripening material transfer mechanism further includes several ribs fixed and erected on the inner surface (13C) of the drum. It is constructed by extending the tube (39) in a left-handed twisted state. These ribs (39) It is provided over almost the entire length of the ram in the axial direction, and extends around almost the entire circumference of the drum. There is.

Baffles (21A, 21B, 21C) and ribs (37, 38°39) The material transfer mechanism formed by Immediately clean the inside of the drum for substances that tend to settle, such as sand, sand, metal pieces, etc. It serves the purpose of transport. For convenience, these substances are hereinafter referred to as precipitated substances. suspension top Ribs (38) are also created for the material that floats to the top and forms part of the floating slag layer (F). Transported as soon as possible.

The operation of the substance transfer mechanism will be explained below in conjunction with FIGS. 3 to 5.

During the stop period when the drum is in the position shown in Figure 3, the precipitated material is directed towards the bottom of the drum. , and some of this precipitated material is captured by the baffle (21A). , another portion is captured by the baffle (21B), and yet another portion is captured by the baffle (21B). 21B) and (2IC) by a portion of the inner surface of the drum (13). In addition, another part of the drum located on the left side of Ka Huffle (21C) is captured. Captured by a portion of the surface. Long free edge (22) by baffle (21A) In parallel with sliding towards A), the side of the rib (38) facing the drum exit end is moved towards the outlet end by the side surface (38A) of. Baffle (21A) ), a portion of this material reaches the baffle (21A). B) and is caught by this baffle adjacent to the longitudinal free edge (22B). Ru. Inside the same material adjoin the vertical plane (C) from there to the lowest part of the inner surface of the drum Some things fall.

The drum rotates clockwise by one-third of its full rotation and passes through the position shown in Figure 4 to the next stopping position. Once the position is reached, it then operates as described below.

All precipitated material remaining on the baffle (21A) surface is removed by sliding as described above. It falls and moves towards the exit end of the drum by the side surface (37A) of the rib (37). be done. When this precipitated material reaches the baffle (21B), the baffle has already caused It slides along with the trapped precipitated material towards the inner surface (13c) of the drum. this During the sliding movement, the precipitated material is collected by the side surface (38A) facing the outlet end of the rib (38). It is deflected over a distance towards the drum exit end. At this time, the precipitated material is inside the drum. Temporarily fasten to a position adjacent to a surface.

During or after the rotation of the drum, the inner surface of the drum causes the baffle (21B) and Most of the precipitated material trapped between the drum (21C) and C to move toward the part of the drum located at the lowest position. At this time, the precipitated material The side surface (39A) facing the drum outlet end of the drum (39) moves the drum toward the outlet end. be moved.

During this rotation, sediment caught on the clockwise leading side of the baffle (21C) on the inner surface of the drum. The sludge material is carried by the baffle (21C) up to the position of the baffle (2LA) in Figure 3. held.

When the baffle (21C) reaches its position, at least a portion of this material begins to move towards the center of the drum on the surface of (21C). At this time, the precipitate The quality is directed towards the exit end of the drum by the sides (37A) of the ribs (37) of the baffle. is deflected.

During rotation, part of the floating ring layer (F) is also caught below the baffle (21B) and the baffle (see Figure 4) and the side surface of the rib (37) (37B). ) deflects this part of the float layer towards the exit end of the drum, and the baffle ( 21B) and rises to the top of the drum, away from the free edge (22B).

This rotational action is followed by a period of rest and a further rotational action (two-thirds of a revolution of the drum). During the subsequent rotation), the above-mentioned separation and transfer actions are repeated, and then the next is repeated again during each stop period and rotation action.

From the above explanation, the majority of the precipitated material and the part with less or more floating ring layer (F) It is clear that the minutes move towards the exit end of the drum with each rotation of the drum. . Particles or bodies of precipitated material or light particles entering the drum (13) from the inlet end. Density particles leave the drum within a short time compared to the residence time of the bulk of the suspension in the drum. It is possible to move through.

The ribs (37, 38) of one baffle are connected to the ribs of the other baffle and the inner surface of the drum. With respect to the ribs (39), the maximum length of each rib is utilized for axial transfer of the drum. It is necessary to arrange it so that it can be used. The height of the rib (37, 3g) is the deciding factor However, it is, for example, 0.01 to 0.05 times the drum radius.

Adjacent to the exit end of the drum are baffles (21A-21C) and ribs (37-3 Although the shape of 9) is not shown, the precipitated material and floating ring layer (F) are directed toward the outlet pipe (19). (not shown) provided inside or near the housing (11) from the drum (13). The shape has been changed so that it can be transferred to the convolution section.

The aged material is also discharged from the drum (13) into this convolution. drum's The shapes of the baffles and ribs were similarly changed near the partition wall (20). The precipitated material and the floating ring layer (F) are transferred to and through the central opening of the partition. sent.

A recirculation pipe (40) extends along the central axis of the aging drum (13) and is not shown. A portion of the material that has been wholly or nearly wholly aged in a manner that does not Recirculation is provided from the proximal lid to a position near the inlet end.

The recycled material acts as an inoculum for the newly supplied material and Promotes quality ripening.

In the illustrated embodiment described above, there are three baffles (21A to 21C) spaced apart at a constant angle. ). This configuration has been found to be preferable, at least in certain cases. There is. However, a different number of baffles and a different shape and shape than those shown and described above may be used. It is also within the scope of the present invention to configure it in a different arrangement. For example, the baffle The cross section may be bent or inclined in a different state, or the baffle Radius passing through the outer longitudinal edge (R, R, R) BC The angle formed by this may be varied within a wide range. In the embodiment described, the baffle is Diameter (R, R, R) Rotation ABC Although it is deflected in the direction of rotation, it may be deflected in the opposite direction if necessary. Preferably, The angle between the fuffle and each radius is less than +/-30 degrees.

The above-mentioned processing material transfer mechanism is used when the drum rotates continuously or intermittently in small steps. It is also useful. Also useful when the drum is rotated by an external drive mechanism. Ru.

Furthermore, the drum rotation generation mechanism described above can also be used independently of the material transfer mechanism. Ru.

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Claims (1)

[Claims] [1] It can rotate around its own axis, with a material supply inlet at one end and a material discharge port at the other end. consisting of a longitudinal horizontal processing drum having an outlet for use and having a material transfer means affixed therein; Particularly suitable for gas generation processing equipment such as fermentation and maturing processing of organic matter contained in suspensions. and the material transfer means are spaced apart longitudinally of the drum (13) and transversely of the drum (13). It includes a plurality of guide ribs (37, 38, 39) forming acute angles with the plane, and the guide ribs (37, 38, 39) The support surface (21A, 21 B, 21C, 13C), deposited in the drum and formed on the side surface of the guide rib. The particles captured by (37A, 38A, 39A) are transferred to the front of the drum by the side surface. A device arranged to deflect the beam toward the other end. [2] The support surface (21A to 21C) that supports a group of the guide ribs (37) a buff fixed to the inner surface of the drum and extending toward the opposite inner surface of the drum; 2. The device of claim 1, comprising a front surface of a wall. [3] Support surface of one group of said guide ribs or another group of said guide ribs (13C ) is the circumferential inner surface of the drum (13), according to claim 1 or 2. equipment. [4] Another plurality of guide ribs (38) are spaced apart from each other in the longitudinal direction of the drum (13). , of the baffles (21A, 21B, 21C) forming an acute angle with the transverse plane of the drum. adhered to the back surface, deposited in the drum, and on the side of the other plurality of guide ribs (38). The particles captured by the surface (38A) are transferred to the drum by the side surface (38A). According to claim 2 or 2, the device is adapted to be deflected towards an end. Apparatus according to paragraph 3 below. [5] Adjacent to the baffle (21A, 21B, 21C) and the other end of the drum The guide ribs (37, 38, 39) further direct the particles to the central area of the drum. (19) Apparatus according to sub-clauses 3 or 4. [6] Longitudinal horizontal processing drum that can rotate around its own axis and injects and discharges suspension. and means for collecting the gas generated in said drum, especially for suspensions. An apparatus for gas generation treatment such as fermentation and ripening treatment of organic matter contained, the device comprising: Baffles (21A, 21B, 21C) installed inside the drum allow multiple angular displacements of the drum. The central axis (L) of the drum (13) A gas collection space (25 6. A device according to any one of claims 1 to 5, forming: A). [7] The baffles (21A, 21B, 21C) are spaced apart from the central axis of the drum. The axial line portion ( 22A, 22B, 22C), and the shaft extends from the inner surface (13C) of the drum. Claims in which the distance to the direction line portion is at least 0.5 times the drum radius 6. The device according to paragraph 6. [8] The baffles (21A, 21B, 21C) cover almost the entire drum (13). 8. A device according to claim 6 or 7, extending over a length. [9] The number of the baffles (21A, 21B, 21C) is three, and in the circumferential direction 9. Apparatus according to claims 6 to 8, which are equidistantly spaced. [10] The gas about the vertical plane (C) that includes the central axis (L) of the drum Transfer the gas generated on the side opposite to the collection space to the gas collection space (25A) 9. A device according to any one of claims 6 to 9, comprising conduit means (27). Device. [11] Means for temporarily stopping the drum (13) at each of the angular displacement positions (35) The device according to any one of claims 6 to 11. [12] The angular displacement position and the baffles (21A, 21B, 21C) are the same in number. any of claims 6 to 11, which are arranged at equal intervals in the circumferential direction. The device described in any one of the above. [13] All the baffles (21A, 21B, 21C) are in the angular displacement position. Any one of claims 6 to 12, which forms a certain angle with a horizontal plane. The device according to paragraph 1.