JPS6251648B2 - - Google Patents

Abstract

PURPOSE:To execute mixing and disintegration of a raw material for fermentation at the same time in one device by providing two parallel shafts rotating toward inside to each other in a trough, a mixing paddle to the shaft in the mixing part at the charging side, and disintegrating pins to the shaft at the discharging side. CONSTITUTION:When a raw material for fermentation is charged to a charging side of a trough 1, the material is first mixed by mixing paddles 8 because two shafts 2, 3 planted with paddles and pins are rotated toward inside to each other by a driving device. The material is arranged to be mixed previously in the mixing section (a) sufficiently, and then transferred through the trough to a disintegrating section side by the displacing force of the paddles. When it is pressed to an auxiliary plate 10 for disintegration, it is allowed to pass through holes 10a by the pressing force forcibly, and disintegrated to relatively small particle size by the shearing effect of the plate 10. The raw material is then further disintegrated finer by the high speed revolution of disintegrating pins, and discharged from a discharging port finally.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixing and crushing machine for fermentation raw materials.

When sewage sludge, livestock manure, and other organic waste are composted by aerobic fermentation, sawdust, rice husks, dried grass, Add and mix organic materials with low moisture content such as bark to adjust the air permeability and moisture content suitable for fermentation, then add to the tank, or add the fermented material and additives to the tank and mix. This is then subjected to desired aeration for fermentation. In this case, in order to promote fermentation, it is desirable that the additives and the fermented material be thoroughly mixed and stirred and that they be crushed as small as possible.

Conventionally, a mixer for mixing and stirring the fermented materials and additives and a crusher for crushing have been used separately, but since the crusher is not used and only mixing and stirring is used, the equipment is complicated and expensive. There is a drawback. In addition, paddle-type mixers are sometimes used to improve the mixing effect, but these paddle mixers have the drawback of kneading sludge and being unable to break up coarse clumps; However, the granulation effect causes poor air permeability between the granules during fermentation, resulting in anaerobic fermentation, which makes it impossible to obtain high-quality compost.

In view of this, the present invention provides a mixing and crushing machine that is capable of mixing and crushing fermentation raw materials such as sewage sludge and other fermentable materials in a single machine, which is suitable for aerobic fermentation. , a mixing paddle and a crushing pin are arranged on the same axis so as to separate the input side and the discharge side so that they are driven by a single electric motor,
In addition, a partition plate is provided between the mixing paddle on the input side and the crushing pin on the discharge side, and after the mixed raw materials are forced to pass through the paddle, they are crushed by the pins. do. The present invention will be explained below based on illustrated embodiments.

In the figure, 1 is a U-shaped trough, and two shafts 2 and 3 are arranged in parallel inside this trough 1, and are rotatably supported by bearings 4 and 4, respectively. In the shaft diagram, the end of the shaft 2 is driven by a drive device 5 either directly or via a power transmission mechanism 6, and the other shaft 3 has gears 7, 7 provided on the shafts 2 and 3 meshed with each other, so that both shafts are connected to each other. Both perform inward rotation.

And on these shafts 2 and 3 are paddles 8 suitable for mixing.
and a pin 9 suitable for crushing are provided, the paddle 8 being provided on the input side of the trough, and the pin 9 being provided on the discharge side of the trough. In the illustrated embodiment, the ratio of the mixing part a by the paddle 8 and the crushing part b by the pin 9 is made to be approximately equal, but the ratio of the mixing part and the crushing part can be set arbitrarily depending on the properties of the fermented raw materials, etc. In addition, a discharge port 1a is formed at the lower part of the discharge side end of the trough 1.

Further, a crushing auxiliary plate 10 is provided at the boundary between the mixing section a using paddles and the crushing section b using pins. This crushing auxiliary plate 10 is arranged and fixed in the trough in a substantially vertical direction, and the two shafts 2 and 3 pass through this plate, so that the paddle in the mixing section and the pin in the crushing section are respectively attached to the shafts. It is installed protrudingly.

The crushing auxiliary plate 10 has small holes 10 over almost its entire surface.
a or provide a slit.

Then, in the mixing and crushing machine configured as described above, the fermentation raw material is charged into the input side of the trough. At this time, the two shafts 2 and 3 on which paddles and pins are installed are rotated inwardly by a drive device, so that the input fermentation raw materials are first mixed by the mixing paddle 8.
The mixing section a is set in advance to ensure sufficient mixing. After being mixed, this fermentation raw material is transferred inside the trough to the crushing section side by the sending force of the paddle, and when pressed against the crushing auxiliary plate, the fermentation raw material passes through the holes 10a of the crushing auxiliary plate due to this pressing force. The particles are forced to pass through and are crushed into relatively fine particles by the cutting effect of the holes. The raw material is then further crushed into fine pieces by the high-speed rotation of crushing pins, and then discharged from the discharge port.

According to the present invention, a mixing paddle and a crushing pin are coaxially provided, and the trough is divided into a mixing section on the input side and a crushing section on the discharge side, and a perforated crushing auxiliary plate is provided between them. It has the advantage of being able to mix and crush fermentation raw materials at the same time with one machine, pre-crush it with an auxiliary plate, shorten the length of the pin, and be compact with good crushing efficiency. have

[Brief explanation of the drawing]

FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. 4 is a sectional view. 1 is a trough, 2 and 3 are shafts, 4 is a bearing, 5 is a drive device, 6 is a power transmission mechanism, 7 is a gear, 8 is a paddle, 9 is a pin, 10 is a crushing auxiliary plate, 10a is a hole,
A is a mixing section, and b is a crushing section.

Claims (1)

[Claims] 1 Two shafts that rotate inward to each other are arranged in the trough, and the inside of this trough is divided into two by a perforated crushing auxiliary plate, and the shaft is connected to the shaft in the mixing section on the input side. Mixing and crushing of fermentation raw materials, characterized in that the mixing paddles are provided with crushing pins on the shafts of the crushing section on the discharge side, so that the fermentation raw materials can be mixed and crushed in one unit. crusher.