JP5284718B2 - Compost mixer - Google Patents

Description

  The present invention relates to a vertical-axis type composting apparatus that stirs organic waste into compost.

  In order to improve the processing efficiency in the vertical type composting apparatus in which the rotating shaft provided with the stirrer that stirs the organic waste deposited in the processing tank is movably mounted in the plane direction. In addition, attempts have been made to increase the amount of organic waste deposited by increasing the depth and width of the treatment tank. In this case, the length of the rotating shaft is increased corresponding to the organic waste deposition height, and the moving distance of the rotating shaft is increased corresponding to the vertical and horizontal width of the treatment tank.

  By the way, since the resistance force due to organic waste acts on the movement and rotation of the rotating shaft during stirring, the moving speed and rotating speed of the rotating shaft are rotated by the resistance force of organic waste during stirring. The shaft and stirrer are set so as not to be damaged.

  However, as the amount of organic waste deposited increases, the resistance increases in proportion to the weight of the organic waste, and further, the organic waste is crushed by its own weight and becomes denser and harder. In practice, therefore, the moving speed and rotational speed of the rotating shaft must be reduced, and conversely the stirring efficiency is reduced. In other words, if the amount of organic waste deposited is increased, the amount of treatment per process increases, but the stirring efficiency is reduced by lowering the moving speed and rotational speed of the rotating shaft, so the amount of organic waste deposited is increased. This alone is not a fundamental solution for improving processing efficiency.

Therefore, in order to reduce the resistance of organic waste to the rotation and rotation of the rotating shaft and improve the stirring efficiency, for example, the outer periphery of the stirring body is formed in a saw blade shape, or a protrusion is provided on the outer periphery of the stirring body. In addition, a configuration has been proposed in which the rotating shaft rotates around the vertical axis while rotating. (For example, see Patent Document 1)
JP 2000-281471 A

  However, the structure of Patent Document 1 requires a stirrer whose outer periphery is formed in a saw blade shape, the protrusions, and various members and parts for revolving the rotating shaft, and is structurally complicated. . Further, depending on the resistance of the organic waste, various members and parts are not damaged and the rotation shaft is not revolved, which may reduce the stirring efficiency of the organic waste.

  An object of the present invention is to deal with such a problem. That is, an object of the present invention is to improve the stirring efficiency of organic waste by reducing the resistance of the organic waste to the movement and rotation of the rotating shaft with a simple configuration.

  In order to achieve the above object, a composting apparatus according to the present invention comprises at least the following configuration.

  That is, in a vertical-type composting apparatus in which a rotating shaft provided with an agitator on the outer periphery for stirring accumulated organic waste is vertically suspended so as to be movable in a plane direction, the rotating shaft includes the rotating shaft and A vibrating body that vibrates the stirring body is incorporated.

  Further, the vibrator is incorporated in a portion corresponding to a portion where the density of the organic waste is high in the entire region in the axial direction of the rotating shaft.

  Further, the vibrating body is built in a portion that vibrates a lower portion including at least a lower end of the entire region in the axial direction of the rotating shaft.

  The rotating shaft has a tube structure having an upper end side as an air supply port and a lower end side as an outlet, and holding means for holding the vibrating body inside the rotating shaft, the air supply port and an injection port A holding portion having a communication space that communicates with the outlet is provided.

  The organic waste referred to in the present invention may be anything that can be composted by fermentation. For example, a bedding placed in a barn (mixed with livestock manure), livestock (cattle, pig, chicken) Manure, garbage, etc.

  The best mode for carrying out the composting apparatus according to the present invention will be described below with reference to the drawings. FIGS. 1-6 is a schematic block diagram which shows an example of implementation of the composting apparatus concerning this invention. Since the structure of the composting apparatus A shown in the present embodiment is basically well-known, a detailed description is omitted, but is roughly as follows.

  The composting apparatus A of the present embodiment is a container-like treatment tank C for depositing organic waste B, and the treatment tank C is stretched across the treatment tank C in the left-right direction in FIGS. A traveling body D traveling in the direction, a carriage E supported so as to be movable in the left-right direction with respect to the traveling body D, and a stirring device F suspended from the carriage E. .

  The said processing tank C is formed with the bottom part C1 formed in the planar square shape using concrete, and the side wall C2 standingly arranged by the three sides of this bottom part. The traveling body D is formed in a frame shape, and includes a wheel D2 that rolls on a rail D1 provided at an edge of two facing side walls C2 in the processing tank C. The carriage E is formed in a frame shape, and includes wheels E1 that roll in contact with the upper and lower surfaces of the traveling body D. The traveling body D and the carriage E are each operated by a drive motor (not shown).

  The stirrer F of this embodiment has a structure in which air is fed to the organic waste B while stirring, and a screw-like stirrer 2 is provided on the outer periphery of the rotating shaft 1 of the tube structure shown in FIGS. The stirring screw F1 provided integrally and the air suction pipe F2 in which the upper end part of the rotating shaft 1 is rotatably inserted are provided. An air supply port 1A is opened at the upper side surface of the rotary shaft 1, and a jet port 1B is opened at the lower end. The air feed port 1A and the jet port 1B communicate with each other via an air passage 1C. Yes. That is, the air supplied from the air supply port 1A is ejected from the ejection port 1B through the passage 1C.

  The stirring screw F1 is supported by penetrating the upper portion of the rotating shaft 1 on which the stirring body 2 is not provided in a state where the upper portion of the rotating shaft 1 is rotatable with respect to the sleeve E2 fixed to the carriage E and is prevented from coming off. Yes. A sprocket 11 is fixed coaxially with the rotary shaft 1 on the side surface of the rotary shaft 1 penetrating from the lower side of the sleeve E2. A chain H for transmitting the rotation of the drive motor G attached to the carriage E to the rotary shaft 1 is wound around the sprocket 11.

  The air inflow pipe F2 is formed in a tubular shape that can be closed so as to surround the entire outer surface of the rotary shaft 1 through which the upper end of the rotary shaft 1 rotates and the air supply port 1A is opened. The portion is fixed to the upper sleeve E2. That is, the air inflow pipe F2 is always kept at a fixed position without the rotation of the rotary shaft 1 being transmitted.

  Between the inner surface of the air inlet pipe F2 and the outer surface of the rotary shaft 1, an air circulation space F20 is secured. An air supply pipe F21 for supplying air to the circulation space F20 is provided on the outer surface of the air inflow pipe F2. The air supply pipe F21 is connected to an air supply pump (not shown). And the air from this air supply pump is supplied to the said distribution space 20 through the air supply pipe F21.

  According to the composting apparatus A having this configuration, the stirrer F accumulates in the processing tank C while moving in the processing tank C as the traveling body D moves back and forth and the carriage E moves left and right. The resulting organic waste B is stirred. Then, the organic waste B to be stirred is gradually fermented and dried into compost while being mixed with the air ejected from the ejection port 1B.

  In the figure, reference numeral 3 denotes a vibrating body which is a new configuration of the composting apparatus A in the present embodiment. The vibrating body 3 is configured to vibrate the rotating shaft 1 and the stirring body 2 by transmitting the vibration of the vibrating body 3 to the rotating shaft 1 and the stirring body 2. That is, when the organic waste B is stirred, if the rotating shaft 1 and the stirring body 2 vibrate due to the vibration of the vibrating body 3, the vibration is transmitted to the organic waste B, and around the rotating shaft 1 and the stirring body 2. Vibrate organic waste B. When the organic waste B vibrates, a phenomenon occurs in which the particles of the organic waste B that are stuck together and harden due to deposition are separated. In addition, the solidified organic waste B becomes soft and easily collapses due to such a phenomenon, so that the resistance of the organic waste B to the rotating shaft and the stirring member is reduced when the rotating shaft 1 is moved and rotated. Reduce. Therefore, since the moving speed and rotational speed of the rotating shaft 1 can be increased, the stirring efficiency of the organic waste B can be improved.

  Hereinafter, the structure of the vibrating body 3 of a present Example is demonstrated. The vibrating body 3 of the present embodiment shows a configuration in which it is fixed and built in the lower end side of the passage 1C of the rotary shaft 1. The reason why the vibrating body 3 is built in the lower end side of the passage 1C is as follows. The accumulated organic waste B is subjected to pressure from the upper side due to its own weight, so that the organic waste B deposited on the lower side is crushed, thereby depositing the organic waste B on the lower side. However, it becomes higher than the deposition density of the upper organic waste. That is, the lower organic waste B has the highest resistance against the stirring screw F1 because the lower side of the accumulated organic waste B has a higher density and hardness than the upper side. Force will be applied. Therefore, by incorporating the vibrating body 3 at the lower end side of the passage 1C of the rotating shaft 1, the organic waste B on the lower side where the greatest resistance force acts is softened and easily broken down, and the resistance force is reduced. Can be reduced.

  As the vibrating body 3 of the present embodiment, for example, a motor and a vibrator (not shown) are incorporated, and those used for a high-frequency concrete vibrator of about 200/240 Hz can be used. Incidentally, as shown in FIG. 4, the vibrating body 3 of the present embodiment has a cable 31 inserted into the passage 1 </ b> C from the rotating body 30 </ b> A of the slip ring 30 connected so as to rotate integrally with the upper end of the rotating shaft 1. Wired. A cable (not shown) from an inverter (not shown) is wired to the fixed body 30B of the slip ring 30. That is, since the electric power from the inverter is supplied from the slip ring 30 to the vibrating body 3 via the cable 31, the vibrating body 3 vibrates while rotating integrally with the rotary shaft 1.

  Next, a built-in configuration of the vibrating body 3 of the present embodiment with respect to the passage 1C will be described. In this embodiment, the vibrating body 3 is held by the holding portion 4 which is inserted and fixed upward from the lower end of the passage 1C. As shown in FIGS. 3, 5, and 6, the holding portion 4 includes an outer cylinder 41 having the same diameter as the inner diameter of the passage 1 </ b> C, and the vibrating body 3 is fitted and held inside the outer cylinder 41. The holding cylinder 42 is a holding means, and connecting plates 43 and 44 that connect the outer cylinder 41 and the holding cylinder 42 at two locations, upper and lower. Further, a communication space 45 through which air passes between the inner periphery of the outer cylinder 41 and the outer periphery of the holding cylinder 42 is secured by the connecting plates 43 and 44. The outer cylinder 41 and the holding cylinder 42 have the same length and have upper and lower ends on the same surface. Further, the lower end of the communication space 45 is flush with the lower end of the rotating shaft 1 in a state where the holding portion 4 is inserted. In the present embodiment, the lower end of the communication space 45 is the ejection port 1B.

  The outer cylinder 41 is inserted into the passage 1C and fixed by welding. The holding cylinder 42 is positioned coaxially with the outer cylinder 41, has an outer diameter that is about half that of the outer cylinder 41, and an inner diameter that is the same as the outer diameter of the vibrating body 3. The vibrating body 3 is press-fitted and held inside. There are a plurality of connecting plates 43, 44, which are fixed so as to secure the communication space 45 by connecting the inner periphery of the outer tube 41 and the outer periphery of the holding tube 42. Moreover, the connection plates 43 and 44 are arranged along the circumferential direction so as to exhibit a planar radial shape in the communication space 45. Moreover, the connection plates 43 and 44 are provided so as to be inclined along the circumferential direction with respect to a line along the radial direction. The inclination direction of the connecting plates 43 and 44 is such that the end on the outer cylinder 41 side is located behind the rotation direction of the rotary shaft 1 (the arrow direction in FIGS. 5 and 6) than the end on the holding cylinder 42 side. Inclined to do.

  An air guide plate 46 is provided integrally with the lower end of the lower connecting plate 44 so as to protrude in the axial direction from the jet outlet 1B. The air guide plate 46 is provided so as to be inclined in the same direction along the circumferential direction with respect to a line along the radial direction, like the connecting plate 44. Further, the distal end of the air guide plate 46 on the radial side protrudes from the outer periphery of the rotating shaft 1 in the radial direction. According to the air guide plate 46, the organic waste B immediately below the rotating shaft 1 moves while being stirred to the outside of the rotating shaft 1 because the air guiding plate 46 is inclined in the aforementioned direction and protrudes in the axial direction and the radial direction. Thus, a space for air to enter immediately below the rotating shaft 1 is secured. Therefore, it can be expected that the efficiency of supplying air to the organic waste B is improved. Further, the protrusion in the radial direction of the distal end of the air guide plate 46 in the radial direction serves as a positioning when the holding portion 4 is inserted.

  According to the composting apparatus A of the present embodiment, the vibrating body 3 built in the lower end side of the rotating shaft 1 vibrates the lower end side of the rotating shaft 1 and the stirring body 2 of the part, whereby the rotating shaft 1 The organic waste B having the highest density and stiffened by the stirring body 2 at the lower end side and the part can be softened by vibrating. Further, the strength of the rotating shaft 1 and the stirring member 2 should be increased without attaching or processing parts for breaking the solid organic waste to the rotating shaft 1 and the stirring member 2. In addition, the solidified organic waste B can be softened. That is, the resistance force of the organic waste B to the rotating shaft 1 and the stirring body 2 can be reduced, and by reducing this resistance force, the moving speed and the rotating speed of the rotating shaft 1 are increased, and the stirring efficiency of the organic waste B is increased. Will improve. And the processing capability of the organic waste B improves by this improvement in stirring efficiency.

  In the present invention, the vibrating body 3 shown in the present embodiment is not limited to the configuration in which the vibrating body 3 is built in the lower end side of the passage 1C of the rotating shaft 1, and the vibrating body 3 is disposed in the entire area of the rotating shaft in the passage or the rotation. You may make it the structure incorporated in the site | part corresponding to the lower half part of an axis | shaft (not shown). In the present invention, the vibrating body 3 may be built in a rotating shaft that does not have the passage 1C. In this case, a holding space and a cable for holding the vibrating body 3 are inserted into the rotating shaft. An insertion space is formed (not shown). Moreover, in this invention, it is not restricted to the holding means used as the said holding cylinder 42 shown in the present Example, What is necessary is just the structure which can hold | maintain the said vibrating body 3. FIG.

The notch front view of the composting apparatus concerning this invention. FIG. It is the (3)-(3) line expanded sectional view of FIG. 2, and shows the lower half part of a stirring apparatus. FIG. 3 is an enlarged cross-sectional view taken along line (3)-(3) in FIG. FIG. 5 is a sectional view taken along line (5)-(5) in FIG. 3. FIG. 6 is a sectional view taken along line (6)-(6) in FIG. 3.

Explanation of symbols

A: Composting apparatus B: Organic waste 1: Rotating shaft 2: Stirring body 3: Vibrating body 4: Holding part 42: Holding cylinder (holding means)
45: Communication space 30: Slip ring 31: Cable 1A: Air supply port 1B: Spout 1C: Passage

Claims (4)

In a vertical axis type composting apparatus in which a rotating shaft provided with an agitator on the outer periphery to stir the deposited organic waste is suspended so as to be movable in a plane direction,
The composting apparatus, wherein the rotating shaft includes a vibrating body that vibrates the rotating shaft and the stirring body.   2. The composting apparatus according to claim 1, wherein the vibrating body is incorporated in a portion corresponding to a portion where the density of the organic waste is high in the entire region in the axial direction of the rotating shaft.   2. The composting apparatus according to claim 1, wherein the vibrating body is built in a portion that vibrates a lower portion including at least a lower end of the entire region in the axial direction of the rotating shaft.   The rotating shaft has a tube structure having an upper end side as an air supply port and a lower end side as an outlet, and holding means for holding the vibrating body inside the rotating shaft, the air supply port and an injection port The composting apparatus according to any one of claims 1 to 3, further comprising a holding portion having a communication space communicating with the outlet.

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