JP2002346599A - Solid-liquid separation apparatus for livestock excretion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid-liquid separation apparatus for livestock excretion capable of preventing the generation of a bridging phenomenon even if litter is mixed with excretion. SOLUTION: This solid-liquid separation apparatus for livestock excretion is equipped with a hopper 8 equipped with a crushing means 9 for livestock excretion S consisting of a rotary shaft 9a and crushing arms 9b provided to the rotary shaft, a screw 14 for pushing in the excretion S from the hopper 8 and a separator 10 provided on the outer peripheral side of the screw 14 and equipped with a cylindrical screen 13 for separating the pushed-in excretion into a solid component and a liquid component. The excretion S charged into the hopper is crushed by the rotary operation of the crushing means 9 and unraveled at any time. By this constitution, even if litter is mixed with the excretion S, the generation of the bridging phenomenon in the hopper 8 caused by the adhesion of the excretion S can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid-liquid separation device for livestock manure which performs solid-liquid separation of manure excreted from livestock and the like.

[0002]

2. Description of the Related Art Cows, horses,
BACKGROUND ART Excrement of livestock such as pigs is widely converted into compost (solid compost) by natural fermentation by microorganisms and reused in pastures and the like. At this time, the collected excrement is usually in a state in which feces (livestock dung) such as livestock and urine are mixed (manure), and the water content is excessively large (80 to 80).
90%), and the fermentation efficiency of microorganisms often decreases. Therefore, we adjusted (decreased) the water content of this livestock manure.
In order to do so, for example, a solid-liquid separation device for livestock manure as described in Japanese Patent Application Laid-Open No. 2001-70992 has been proposed.

This prior art is provided with a hopper section (hopper) of a bank cleaner into which livestock manure is introduced, and a dewatering separator (separating device) for solid-liquid separating livestock manure led out from the hopper downward. I have. Then, the separated solid component is fermented as it is to obtain a solid compost, and the liquid component is aerated by injection and agitation of air bubbles to be liquid fertilized.

[0004]

However, the above prior art has the following problems.

That is, livestock and the like are usually bred on bedding laid on the floor (or the ground) of the breeding place. For this reason, the litter is often mixed with the litter, and in this case, the litter plays a role as a solidified material of the litter, and the fluidity of the litter decreases.
Manure tends to adhere to the inner wall of the hopper. As a result, the adhered excrement grows in the hopper to form an arched mass (crosslinking phenomenon), and does not drop below the hopper, making it impossible to continue the excrement processing operation.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a solid-liquid separation device for livestock manure which can prevent the occurrence of a crosslinking phenomenon even when litter is mixed in manure. To provide.

[0007]

(1) In order to achieve the above object, a solid-liquid separation device of the present invention comprises a hopper provided with a crushing means for crushing livestock manure, and a livestock manure from the hopper. And a separation device provided on the outer peripheral side of the screw and configured by a cylindrical screen for separating the pushed livestock manure into a solid component and a liquid component.

In the present invention, livestock manure put into the hopper is pushed by a screw, and when pushed, is separated into a solid component and a liquid component by a cylindrical screen provided on the outer peripheral side of the screw. At this time, by providing crushing means including, for example, a rotating shaft and a crushing arm provided on the rotating shaft in the hopper, livestock manure put into the hopper can be disentangled at any time. As a result, even if bedding is mixed with livestock manure,
It is possible to prevent the occurrence of the crosslinking phenomenon in the hopper due to the adhesion of the manure. As a result, a smooth continuation of the manure processing work can be secured, and work efficiency can be improved.

(2) In the above (1), preferably,
The crushing means includes a rotating shaft, and a crushing arm provided on the rotating shaft such that a tip side is bent in a direction opposite to a rotation direction of the rotating shaft.

When the end of the crushing arm is bent to the anti-rotation side to break the livestock manure so that the crushing arm can push through the livestock manure, the livestock manure entangles and adheres to the crushing arm. It can be prevented from forming a dumpling. Thereby, the continuity of the excrement processing work can be more reliably ensured.

(3) In the above (1), preferably,
The apparatus includes a detecting means for detecting a rotation state of the crushing means, and a control means for controlling a rotation direction of the crushing means according to the detected value.

Thus, for example, the rotation time (or rotation angle) of the crushing means is detected by the detection means, and the rotation direction of the crushing means is changed by the control means at predetermined time intervals (or predetermined angles). By reversing in this manner, it is possible to prevent the livestock manure from being entangled with the crushing arm and sticking to form a dumpling when the livestock manure is crushed in such a manner that the crushing arm pushes through the livestock manure. Thereby, the continuity of the excrement processing work can be more reliably ensured.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a top view showing the entire structure of a manure processing equipment to which an embodiment of the livestock manure solid-liquid separation device of the present invention is applied, and FIG. 2 is a solid-liquid of livestock manure of the present invention. FIG. 2 is a side view showing the entire structure of the manure processing equipment to which the embodiment of the separation device is applied, as viewed from the direction II in FIG. 1.

In FIGS. 1 and 2, reference numeral 1 denotes livestock;
For example, it is a dairy cow, and a plurality (8 in the illustrated example) are bred. Reference numeral 2 denotes a breeding space (cow barn in this example) for breeding the livestock 1. This breeding space 2
Here, for example, a straw is laid on a slab or the like formed of concrete or hard soil, and the livestock 1 is bred thereon. Further, in the breeding space 2, each livestock 1 cannot be moved from a predetermined place unnecessarily by a partition (or restraint or the like) not shown. Reference numeral 3 denotes a shed (cover of a cowshed in this example) that covers the breeding space 2.

Reference numeral 4 denotes a burn cleaner as a means for collecting and transporting manure. The burn cleaner 4 includes an endless chain member 4a, and a number of pushing bars 4b provided to protrude to the side of the chain member 4a. The pushing bar 4b is connected to the chain member 4a via a pin 4c, and is rotatable around the pin 4c within a range of a predetermined angle (for example, 90 °) above the horizontal direction, for example. ing. Reference numeral 5 denotes a groove for driving a burn cleaner which is recessed in the breeding space 2. Reference numeral 6 denotes a gutter member which is provided to stand obliquely via a support member (not shown). Reference numeral 7 denotes a motor provided near the uppermost portion of the gutter member 5, and the chain member 4a meshes with, for example, a sprocket (not shown) fixed to an output shaft of the motor.

At this time, each domestic animal 1 is bred with its buttocks facing the burn cleaner 4, and a mixture of excreted feces and urine (hereinafter simply referred to as manure) S is immediately sent to the burn cleaner 4 side. It is dropped and introduced (or may be introduced manually as appropriate). When the driving force of the motor 7 is transmitted to the chain member 4a, the burn cleaner 4 is circulated in the groove 5 and the gutter member 6 in the direction of arrow A in FIG. It is adapted to be conveyed to the solid-liquid separation device 100 described later by the pushing bar 4b.

FIG. 3 is a partially enlarged view of FIG. 1 showing the entire structure of one embodiment of the livestock manure solid-liquid separation device of the present invention, and FIG. 4 is a side sectional view taken along the line IV-IV in FIG. FIG.

In FIGS. 3 and 4, reference numeral 100 denotes
It is a solid-liquid separation device for livestock manure according to the present embodiment. In the solid-liquid separation device 100, reference numeral 8 denotes a hopper having an upwardly expanding shape, 9 denotes a crushing means provided in the hopper 8, and 10 denotes a separation device (screw press). In this separation device 10, reference numeral 11 denotes a casing, which is provided on a stand 12 which is self-supporting by leg portions 12a. Reference numeral 13 denotes a cylindrical screen provided in the casing 11, and reference numeral 14 denotes a screw provided in the cylindrical screen 13.

Reference numeral 15 denotes an introduction portion provided on one side of the casing 11 (the hopper 8 side, the right side in FIGS. 3 and 4). The introduction unit 15 is located below the hopper 8 and introduces the excrement S discharged from the hopper 8.

Reference numeral 16 denotes a pressing portion provided at an intermediate portion of the casing 11. The screw 14 is connected to the introduction portion 15
The pressing member 16 is extended so that, for example, the axis is substantially horizontal (may be inclined). The cylindrical screen 13 is provided on the outer peripheral side of the screw 14. 14a is a screw shaft, and 14b is a screw blade provided integrally with the screw shaft 14a. At this time, the outer diameter of the screw shaft 14a gradually increases in the feed direction of the manure S (the left side in FIGS. 3 and 4), and the pitch of the screw blades 14b also gradually decreases. Reference numeral 17 denotes a lower case provided below the pressing portion 16, and reference numeral 18 denotes a drain outlet provided at the lowermost portion of the lower case 17.

Reference numeral 19 denotes a discharge portion provided on the other side of the casing 11 (the side opposite to the hopper 8, the left side in FIGS. 3 and 4). Reference numeral 20 denotes a cone provided at the other end of the cylindrical screen 13 in the discharge portion 19. The cone 20 is inserted so as to be slidable in the axial direction of the screw shaft 14a, and is urged to the one side by a spring body 21 (only shown in FIG. 3 for preventing complexity).

It should be noted that the casings 22 and 23 are
Bearings for rotatably supporting the screw shaft 14a at both end portions (the one end portion and the other end portion), respectively, and 24 and 25 are the bearings 2 on the one side and the other side, respectively.
The chain gears are provided in the vicinity of 2, 23, respectively.

FIG. 5 is a view as seen from the direction V in FIG. In FIG. 5 and FIG. 3 described above, reference numeral 26 denotes an electric motor with a reduction gear, which is a driving source of the screw 14, 27 denotes a chain gear fixed to an output shaft 26a of the electric motor 26, 28 denotes the chain gear 27 and the chain gear It is a chain wound around 25.

FIG. 6 is an enlarged view of a main part in FIG. 4 showing a detailed structure near the hopper in one embodiment of the solid-liquid separation device for livestock manure of the present invention, and FIG. It is the arrow view seen.

6 and 7, reference numeral 9a denotes a rotating shaft (crushing shaft) of the crushing means, 29 and 30 denote bearings rotatably supporting both sides of the rotating shaft 9a in the axial direction, respectively.
Reference numeral 31 denotes a chain gear fixed to the right end of the rotary shaft 9a in the figure.

FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. In FIG. 8 and FIG. 6 described above, 9b
Are a plurality (three in this example) of crushing arms provided to protrude radially from the rotation shaft 9a. As shown in the drawing, the crushing arms 9b are arranged such that their positions are at appropriate intervals in the circumferential direction (in this example, 120 °
(Interval) It is fixed to the rotating shaft 9a.

Referring back to FIGS. 6 and 7, reference numeral 32 denotes a bracket provided at the right end of the casing 11 in the figure, and reference numeral 33 denotes an intermediate chain gear rotatably supported by the bracket 32;
Reference numeral 4 denotes a chain connecting the chain gear 24, the chain gear 31, and the intermediate chain gear 33.

Referring back to FIGS. 1 and 2, reference numeral 35 denotes a discharge conveyor. The discharge conveyor 35 includes a drive motor 36,
Drive wheels (not shown) provided at one end (right side in FIGS. 1 and 2) driven by the drive motor 36 and driven wheels (not shown) provided at the other end (left side in FIGS. 1 and 2). And a conveyor belt 37 wound around these drive wheels and driven wheels. Then, the manure S discharged from the discharge portion 19 of the separation device housing 11 of the solid-liquid separation device 100
Is received on the conveyor belt 37 and transported to a predetermined position.

The operation and operation of the above-mentioned manure processing equipment including the embodiment of the livestock manure solid-liquid separation apparatus of the present invention having the above-described configuration will be described below.

The processing of the manure S is usually performed twice a day, for example, in the morning and evening. When the manure S is processed, first, the discharge conveyor 35
And the conveyor belt 3 is driven by the driving force of the driving motor 36.
7 is driven to circulate. After that, the separation device 10 is activated,
The screw shaft 14a is rotationally driven by the driving force of the electric motor 26 (see the arrow C in FIGS. 8 and 7). Along with this, the driving force is also transmitted to the crushing means rotating shaft 9a via the chain gear 24, the chain 34, and the chain gear 31, and the crushing means 9 also rotates (see arrow D in FIGS. 8 and 7). 7, the screw 14 and the crushing means 9 rotate in the same direction).

In this state, the burn cleaner 4 is started, and
The driving force of the driving motor 7 drives the chain member 4a to circulate in the direction of arrow A in FIG. Thereby, the manure S of each livestock 1 that has been introduced into the burn cleaner 4 in the stationary state up to that time is conveyed in the direction of arrow A in FIG. 1 while being scraped off by the scraping rod 4b, and the gutter member 6 is removed. It is fed into the hopper 8 of the solid-liquid separation device 100 from its tip (the right end in FIGS. 1 and 2). In addition, the burn cleaner scraping rod 4b which discharged manure S at the tip of the gutter member 6
Thereafter, the chain member 4a makes a U-turn as shown by the arrow A in FIG. When all the manure S in the breeding space 2 is put into the hopper 8 (in that state, the solid-liquid separation device 100 is still being processed), the burn cleaner 4 is stopped.

Here, the bedding S of the breeding space 2 is often mixed with the manure S put into the hopper 8, and in this case, the mixed bedding plays a role as a solidified material of the manure. As a result, the fluidity of manure is reduced. For this reason, the manure S adheres to the inner wall of the hopper 8 as it is, and the adhered manure S grows in the hopper 8 as shown in FIG. And the sewage disposal work cannot be continued.

In the present embodiment, the manure S put into the hopper 8 can be crushed by the rotating operation of the crushing means 9 described above, and can be broken at any time. Thereby, manure S
Even if straw is mixed in the hopper 8, the above-mentioned cross-linking phenomenon in the hopper 8 due to the adhesion of the manure S can be prevented.

The excrement S guided to the lower part of the hopper 8 while being crushed as described above is supplied to the screw 14 from the introduction part 15. The manure S caught in the screw 14 is pushed (pushed) to the left in FIGS. 4 and 6 by the rotation of the screw 14 and is compressed by receiving pressure from the cone 20, and is compressed by the gap ( The liquid component is squeezed out from the opening). The squeezed liquid components are collected at the center by the lower case 17, discharged from the drain outlet 18, and stored in, for example, a predetermined container. The stored liquid component is aerated by, for example, injection and agitation of bubbles to form liquid fertilizer.

The excreted solid component excreted and dehydrated from the liquid component is discharged to the discharge portion 19 while pushing and opening the cone 20. The manure solid component discharged from the discharge part 19 falls on the conveyor belt 37 of the discharge conveyor 35, is conveyed to a predetermined position, and is piled up (or thrown into a predetermined container), for example. The solid component of manure has a water content of 6%.
It is adjusted to 5% to 70%, and is transported to another predetermined position, for example, at an appropriate time thereafter, converted into compost (solid compost) by natural fermentation by microorganisms, and reused in pastures and the like.

When the solid-liquid separation (dehydration) processing of all the manure S put into the hopper 8 is completed, the separation device 10 and the discharge conveyor 35 are stopped, and all the operations are completed.

As described above, according to the livestock manure solid-liquid separation device 100 of the present embodiment, the manure S put into the hopper 8 is crushed by the rotating operation of the crushing means 9 and is unraveled at any time. Can be. Thereby, even if the bedding is mixed with the manure S, the hopper 8 due to the attachment of the manure S
It is possible to prevent the occurrence of the cross-linking phenomenon in the inside.
As a result, a smooth continuation of the manure processing work can be secured, and work efficiency can be improved.

In addition to the above, there are the following effects. That is, since the manure S put in the hopper 8 is supplied to the screw 14 in the introduction part 15 only by its own weight, when the crushing means is not provided unlike the conventional structure, the bridging phenomenon does not occur. Also, as described above, manure S
Since the fluidity was poor, the amount to be caught in the screw 14 was limited, and a sufficient processing capacity could not be obtained. In particular,
When the processing proceeds and the height of the manure S in the hopper 8 decreases, the force of winding the manure S into the screw 14 due to its own weight decreases, so that the final processing of the manure S may take a long time. .

According to the present embodiment, as described above, the manure S is forcibly supplied to the screw 14 while being crushed by the crushing means 9 so that the fluidity of the manure S can be made smaller than that of the conventional structure. In the increased state, it is efficiently wound around the screw 14. As a result, the processing capacity can be improved, and the processing time of the manure S can be reduced and the processing can be performed quickly.

The present invention is not limited to the above-described embodiment of the present invention, and various modifications can be made without departing from the spirit and technical spirit of the present invention. Hereinafter, such modified examples will be described step by step.

(1) Structure in which the tip of a crushing arm is bent FIG. 10 shows an embodiment of the solid-liquid separation device for livestock manure according to the present invention, in which the tip of the crushing arm has a bent portion near the hopper. It is a principal part enlarged view showing a detailed structure,
FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG.
FIG. 9 is a diagram corresponding to FIGS. 6 and 8 of the embodiment of the present invention.

10 and 11, in this modification, the tip side (radial outer peripheral side) of the crushing means 9 is bent (warped) in the direction opposite to the rotational direction (the direction of arrow c in FIG. 11). ) -Shaped crushing arm 9b '.

In this case, when the crushing arm 9b 'crushes the manure S in such a manner as to push it apart, the crushing arm 9b'
It is possible to prevent the excrement S from being entangled and fixed to form a dumpling. Thereby, the continuity of the excrement processing work can be more reliably ensured. In addition, it is not limited to the crushing arm 9b 'having a fixed structure in which the distal end side is bent as shown in FIG. 11, and for example, normally, when it is rotated in a straight shape as shown in FIG. Only as shown in FIG. 11, a crushing arm having a bent distal end side may be used. In this case, a similar effect is obtained.

(2) Structure for Inverting and Inverting the Crushing Arm Independently FIG. 12 shows an embodiment of the livestock manure solid-liquid separation apparatus of the present invention, in which the crushing arm is independently driven and periodically inverted. It is a principal part enlarged view showing the detailed structure of the hopper vicinity in a modification. FIG. 12 is a diagram corresponding to FIG. 6 of the embodiment of the present invention.

In FIG. 12, in this modification, a drive motor 38 for the crushing means is newly provided on the bracket 32, and the rotating shaft 9a of the crushing means 9 is directly driven independently of the screw 14. I am trying to do it. Accordingly, the chain gear 2 according to the embodiment of the present invention is described.
4, 31, the intermediate chain gear 33, and the chain 34
Has been omitted. Reference numeral 39 denotes a control device for controlling the driving motor 38 for the crushing means, which also has a timer function.

FIG. 13 is a control flow showing the contents of control of the drive motor 38 by the control device 39.

In FIG. 13, at the start of the livestock manure processing operation, if, for example, a crushing means start button on an operation panel (not shown) is pressed, the control device 39 starts this flow. First, at step 10, a calculator T for counting the rotation continuation time in one direction is cleared to zero.

Next, at step 20, a drive signal is output to the drive motor 38, and the crushing means 9 is driven to rotate in one direction (for example, the direction indicated by the arrow D in FIG. 11).

Thereafter, at step 30, it is determined whether or not the stop of the crushing means 9 is instructed. Specifically, for example, it is determined whether or not the crushing means stop button of the operation panel has been pressed. If pressed, this determination is satisfied, and the routine proceeds to step 40, where a drive stop signal is immediately output to the drive motor 38 to stop the crushing means 9.

If the crushing means stop button on the operation panel has not been pressed, the determination in step 30 is not satisfied, and step 5
After moving to 0 and adding 1 to the time calculator T, the flow proceeds to step 60.

In step 60, T is set and stored as a predetermined threshold value T0 (for example, a fixed value in order to disintegrate the manure S in the hopper 8 to some extent according to the rotation speed of the drive motor 38). Or may be set and stored as a fixed value each time, for example, manure processing work by an appropriate external setting means). If T ≦ T0, the determination is not satisfied and the routine returns to step 30 to repeat steps 30 to 60. If the stop of the crushing means 9 is instructed during the repetition, the process moves from step 30 to step 40, and the crushing means 9 is stopped. If T> T0 during the repetition,
When the determination at Step 60 is satisfied, the routine goes to Step 700.

In step 70, the time calculator T = 0
To clear. Thereafter, the process proceeds to step 80, where a drive signal is output to the drive motor 38, and a direction opposite to the one direction (for example, a direction opposite to the direction indicated by the arrow D in FIG. 11)
Then, the rotating direction of the crushing means 9 is changed and driven. afterwards,
Returning to step 30, the same procedure is repeated.

By the above control, the crushing means 9 is driven while changing (reversing) the rotation direction at every time T0, unless the stop instruction of the crushing means 9 is given. Thereby, when the crushing arm 9b crushes the excrement S in such a manner that the crushing arm 9b separates the excrement S, the excrement S sticks to the crushing arm 9b and adheres to the crushing arm 9b to form a dumpling like the modification (1). Thus, the continuity of the manure processing operation can be reliably ensured.

In the above, steps 30, 50 and 60 of the flow shown in FIG. 13 constitute detecting means for detecting the rotation state of the crushing means according to claim 3;
Steps 70 and 80 constitute control means for controlling the rotation direction of the crushing means according to the detected value.

In the above description, the crushing means 9 is reversed according to the rotation continuation time in one direction (specifically, every time the time T0 elapses), but the invention is not limited to this. For example, the rotation angle (rotational position) of the crushing means rotating shaft 9a is detected by a known increment type rotation detecting sensor or the like, and crushing is performed accordingly (for example, every time a certain angle is rotated, or when a certain position is rotated). The means 9 may be reversed. In this case, the rotation detection sensor constitutes detection means for detecting the rotation state of the crushing means. In these cases, the same effects as described above are obtained.

(3) Structure in which blades are provided at tip of crushing arm FIG. 14 shows a modified example in which blades are provided at the tip of the crushing arm, which constitutes one embodiment of the solid-liquid separation device for livestock manure of the present invention. FIG. In FIG. 14, for example, a roof tile-shaped blade 40 is provided at the tip of the crushing arm 9b.

In this case, the operation of breaking up the manure S in the hopper 8 and pushing it into the screw 14 can be performed more strongly.

(4) When Two Disintegrating Means are Provided FIG. 15 shows a plurality of disintegrating means 9 in the hopper 8 which constitute one embodiment of the solid-liquid separation device for livestock manure of the present invention. It is a figure showing the modification example provided with two (in the example), and is a figure corresponding to the said FIG. 7 of one Embodiment of this invention. FIG.
FIG. 16 is a top view of a main part viewed from the XVI direction in FIG.

In FIGS. 15 and 16, in this modification, the rotating shafts 9a, 9a
The above-described chain gear 31 (see FIG. 10) is fixed to the gear. At this time, the chain gears 31 are meshed with each other,
They are connected via another gear (not shown). Then, when one of the chain gears 31 rotates in the direction indicated by the arrow D in FIG.
The other chain gear 31 is configured to rotate in the direction indicated by arrow d 'in FIG. Thereby, since the manure S is disintegrated by the two disintegrating means 9 in the hopper 8, the disintegration performance can be further improved.

[0061]

According to the present invention, the livestock manure fed into the hopper by the crushing means can be disentangled at any time. Therefore, even if the livestock manure is mixed with the bedding, the livestock manure adheres to the manure. Can prevent the occurrence of the crosslinking phenomenon. As a result, a smooth continuation of the manure processing work can be secured, and work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a top view showing the entire structure of a manure processing facility to which an embodiment of a livestock manure solid-liquid separation device of the present invention is applied.

FIG. 2 is a side view as viewed from a direction II in FIG.

FIG. 3 is a partially enlarged view showing the entire structure of one embodiment of the solid-liquid separation device for livestock manure of the present invention.

FIG. 4 is a side sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a view as seen from a direction V in FIG. 4;

FIG. 6 is an enlarged view of a main part showing a detailed structure near a hopper in an embodiment of the solid-liquid separation device for livestock manure of the present invention.

7 is a view as seen from the direction of arrow VII in FIG. 6;

FIG. 8 is a transverse sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a diagram illustrating a state in which a crosslinking phenomenon has occurred in the hopper.

FIG. 10 is an enlarged view of a main part showing a detailed structure near a hopper in a modified example in which the tip of a crushing arm is bent in one embodiment of the solid-liquid separation device for livestock manure of the present invention.

11 is a transverse sectional view taken along the line XI-XI in FIG.

FIG. 12 is an enlarged view of a main part showing a detailed structure in the vicinity of a hopper in a modified example in which the crushing arm is independently driven and periodically inverted in the embodiment of the livestock manure solid-liquid separation device of the present invention.

FIG. 13 is a control flow showing a control content of a drive motor by a control device constituting a modified example in which a crushing arm is independently driven and periodically inverted in an embodiment of a livestock manure solid-liquid separation device of the present invention. It is.

FIG. 14 is a view showing a modification in which a blade is provided at the tip of a crushing arm which constitutes an embodiment of the solid-liquid separation apparatus for livestock manure of the present invention.

FIG. 15 is a view showing a modified example in which a plurality of crushing means constituting an embodiment of a solid-liquid separation device for livestock manure of the present invention are provided in a hopper.

FIG. 16 is a top view of a main part as viewed from the XVI direction in FIG. 15;

[Explanation of symbols]

 Reference Signs List 8 Hopper 9 Crushing means 9a Rotating shaft 9b Crushing arm 9b 'Crushing arm 10 Separation device 13 Cylindrical screen 14 Screw 39 Controller S Livestock manure

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kiyonobu Hirose 2-5-1 Koraku Bunkyo-ku, Tokyo Inside Hitachi Construction Machinery Co., Ltd. 38 Limited Company Green General Works (72) Inventor Yuichi Murakami 87-10, Shitanda, Kesennuma-shi, Miyagi F-term in Murakami Iron Works 4D059 AA01 BE15 BE51 BK11 CB05 CB06 CB07 CB27 EA20 EB20 4H061 CC36 FF01 GG12 GG10 GG10 GG10 GG49 GG69

Claims (3)

[Claims] 1. A hopper provided with a crushing means for crushing livestock manure, a screw for pushing livestock manure from the hopper, and a solid component and a liquid provided on the outer peripheral side of the screw for pushing the livestock manure. A solid-liquid separation device for livestock manure, comprising: a separation device comprising a cylindrical screen for separating the components into components. 2. The livestock manure solid-liquid separation device according to claim 1, wherein said crushing means is provided with a rotating shaft, and a tip end of said rotating shaft is bent in a direction opposite to a rotating direction of said rotating shaft. A livestock manure solid-liquid separation device comprising a crushing arm. 3. A livestock manure solid-liquid separation apparatus according to claim 1, wherein said control means controls a rotation direction of said crushing means in accordance with the detected value. Means for separating solid and liquid from livestock manure.