JPH0255282A - Dry-treating machine for livestock raw dung - Google Patents

Abstract

PURPOSE:To provide the title machine so designed that livestock raw dung is carried through a carrying screw into a three-tiered drying oven, and before the final drying oven the resultant dry raw dung is ground and, at the same time, dried and made odorless in high efficiency using burners equipped at the lower surface of said final drying oven, thereby utilizing the resultant product as a fertilizer. CONSTITUTION:A mixture comprising livestock raw dung and sawdust is fed from a hopper 1 into the initial drying oven 13, being carried through a carrying screw 16 to make a drying and allowed to fall into the intermediate drying oven 14, where the resultant mixture is then further carried with said screw 16 while being agitated therewith and heated to evaporate the moisture contained. Before the final drying oven 15, the resulting lumpy mixture is ground with a crusher 50 into powdery form, which is further carried through said screw 16 within the final oven 50 to evaporate most of the moisture contained, and then discharged via a port 41 also equipped with a grinder 23. Burners 25-27 are set up under the final drying oven 15 and each of the outer walls of the all three drying ovens 13, 14, 15 is heated to heat the mixture carried.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a raw livestock excrement drying machine that dries the raw livestock excrement into a powder form to be used as fertilizer.

[Conventional technology]

2. Description of the Related Art Conventionally, manure and urine discharged by livestock raised by livestock dealers has emitted a foul odor to the surrounding area, and people living in the vicinity have been bothered by the abnormal odor.

For this reason, even if livestock producers try to remove the manure and throw it away as soon as possible, the current situation is that there is no place to dispose of it because a foul odor is emitted in the place where it is thrown away.

Therefore, related companies and organizations have been making efforts to develop a treatment method, but so far no suitable solution has been found.

[Problem to be solved by the invention]

The present invention was developed in view of the current situation, and an object of the present invention is to provide a livestock manure drying machine that not only makes raw livestock manure odorless, but also allows it to be used as fertilizer. In addition, when drying raw livestock dung, the drying oven in the first stage pulverizes the raw livestock dung that hardens during supply and drying, and if there is still water remaining, it is squeezed out and sent to the next stage. Another purpose is to ensure efficient drying.

[Means to solve the problem]

The present invention relates to a raw livestock excrement drying machine for achieving the above-mentioned object, and includes a multi-stage drying oven equipped with a transfer screw for receiving raw livestock excrement and sending it to the next stage drying oven; It is installed between the final stage drying furnace and the previous stage drying furnace, and in order to crush the raw manure sent out from the previous stage drying furnace, countless small gaps are formed by drilling small holes or using wire mesh, etc. A crushing device that rotates two wooden rolls facing each other, a delivery device that is installed at the exit of the drying furnace in the final stage to send out the dried material, and a device that is installed at the bottom of the drying furnace in the final stage. A burner, a flame guide wall that guides the flame of the burner through the outer wall surface of the intermediate drying oven to the outer wall surface of the first stage drying oven, and a flame guide wall that directs the flame of the burner to the outer wall surface of the first stage drying oven, and directs the hot air of the flame that has passed through the first stage flame guide wall to the first stage drying oven. It is equipped with an introduction device for introducing the air into the drying oven, and an exhaust pipe provided on each drying oven.

[Effect]

In the raw livestock manure drying machine of the present invention, in order to enhance the drying effect, a mixture of raw livestock manure and sawdust or rice husks is mixed in advance, or raw livestock manure directly put into the homper is used in the first stage. It is sent into a drying oven.

This first-stage drying oven has its outer wall heated by the flame from the burner, and the hot air from the burner is pumped into it and discharged from the exhaust stack through the ventilation hole of the transfer screw. The mixture pumped through this width is heated to a high temperature, and the steam and hot air are exhausted from the exhaust stack.

In the intermediate stage drying oven, the mixture is continuously dried by heating the outer wall surface by the flame of the burner until it is transferred by the transfer screw, and the steam accompanying the drying is exhausted from the exhaust stack. Ru.

During such drying, the mixture may form lumps, but before being sent to the final stage drying oven, the mixture is ground into powder by a crushing device, and then transported through the final stage drying oven by a transfer screw. During this time, the wall is completely dried by heating the wall with the flame of the burner.

The thus dried mixture is sent out by a delivery device and either transported to a fermentation plant or immediately packed into bags.

In addition, a crushing device that rotates rolls with small gaps between each stage of drying furnaces compresses raw manure when it is sent to the next stage of drying furnaces, so that no moisture remains. When there is raw manure, the raw manure is squeezed out, and the gap between the booths bites into the raw manure, pulverizing it into small pieces, so that transportation and drying in the next stage drying oven can be carried out smoothly and efficiently. ing.

〔Example〕

Next, one embodiment of the present invention will be described below with reference to the drawings.

■ is the hopper, inside of which are screw 2 and stirring blades 3.
A shaft 4 provided with a shaft is rotatably supported in the vertical direction, and this shaft 4
is driven by a motor reducer 5. A blocking door 6 is provided at the bottom of the hopper 1, and when this door is closed, the contents in the hopper 1 are prevented from falling.

Inside this hopper 1, although there are some differences depending on the moisture content of raw livestock manure, there are 3 raw manures and 3 sawdust or rice husks.
The components are added at a ratio of 0, and the shaft 4 is rotated with the shutoff door 6 closed, and these are sufficiently stirred to form a mixture.

The lower part of the blocking door 6 constitutes a cylindrical body 7 consisting of bifurcated parts 7a and 7b, and inside, a perforated urethane rubber belt IO supported by rollers 9 and 11 so as to be able to rotate in a cylindrical shape is attached to a delivery roll. When the roller 9 and the feed roll 8 are rotated by a motor (not shown),
The belt 10 rotates as it is.

When the blocking door 6 is opened, the mixture in the hopper 1 is
It is guided by the guide plate 12 at the top of the cylinder 7 and falls onto the belt 10. Then, along with the air sucked in from the - side fork 7a, it falls to the other fork 7b through the belt 10 and the delivery roll 8.
b communicates with one side of the first stage drying oven 13.

The rotational speeds of the delivery rolls 8 and rollers 9 can be controlled, so that the rotational speed of the belt 100 can be changed, and the height of the mixture falling into the drying oven 13 can be adjusted.

The first-stage drying furnace 13 described above and the intermediate-stage drying furnace 14 described later
And the final stage drying oven 15 is for heat conduction and corrosion resistance.
It is made of stainless steel and has a cylindrical shape, and a shaft 17 of a transfer screw 16 supported at the front and rear ends is rotatably housed inside the cylinder.

As shown in FIG. 4, the transfer screw 16 is formed in a spiral shape with a hole in the center, and radial arms 16a are formed in the holes toward the center, and these arms 16a are connected to the shaft 17. It is fixed.

The helical directions of the transfer screws 16 of the first-stage drying oven 13 and the final-stage drying oven 15 and the transfer screws 16 of the intermediate-stage drying oven 14 are opposite, and each transfer screw 16 is connected to a motor 18. They are driven by a belt 19 and rotate in the same direction.

Therefore, in the drying oven 13 at the first stage and the drying oven 15 at the final stage, the mixture is transferred from the right to the left in FIG.
16, but in the intermediate stage drying oven 14, it is sent from the left to the right.

In this way, raw manure and sawdust are mixed while the mixture is being sent from the right to the left in the first stage drying oven 13, and when it reaches the left end of the first stage drying oven 13, it is at that position. It falls into the intermediate stage drying oven 14 through the connecting port 20 provided.

Furthermore, in the drying oven 14 at the intermediate stage, the material is sent from the left to the right while being stirred by the transfer screw 16, and through the connecting port 21 provided near the right end, it is transferred to the drying oven 14 at the final stage.
to fall.

While the mixture is being transferred by the transfer screw 16 in this manner, the mixture is heated as described below, and its moisture is released, forming a lump. This lump-like mixture passes through the guide plate 22 to the connecting ports 20 and 2.
1, it is again ground into powder by a grinder 50.

Then, while being moved from the right side to the left side by the transfer screw 16 inside the final stage drying oven 15, it continues to be stirred.
As will be described later, most of the water is discharged, leaving only a small amount of water, and is discharged downward from the outlet 41 in a dry state.

Since this discharge port 41 is also provided with a crusher 23,
If lumps are formed in the mixture again, they are pulverized and fall onto the discharge belt conveyor 24, where they are transported and fermented at a fermentation plant or directly packed into bags.

Three oil burners 2 are installed below the drying furnace 15 in the final stage.
5.26.27 installed, each oil burner 25.26
．． 27, each independent combustion chamber 2 days, 29.30
is provided.

The combustion chambers 28, 29, and 30 communicate with the outer periphery of the final stage drying oven 15, the intermediate stage drying oven 14, and the first stage drying oven 13, respectively, so as to heat these outer walls. This heating causes each drying oven I3.14
．． The mixture transferred within 15 is heated.

The hot air in one combustion chamber 28 of the three combustion chambers 28, 29, 30 is guided to the suction side of the blower 32 by the vibrator 31, and is sent into the intake chamber 33 by the blower 32.

This intake chamber 33 is formed with a throttle opening 34 to increase the moving speed of the hot air sent from the combustion chamber 28 by the blower 32, and at the back of the throttle opening 34 is a vibrator 35. 36 is open.

The hot air from the combustion chamber 28 passing through the throttle opening 34 thus sucks out the hot air in the combustion chamber 29 , 30 and mixes it in the intake chamber 33 .

This mixed hot air is transferred to the drying oven 13 in the first stage through a pipe 37.
After passing through the exhaust pipe, part of it is discharged to the outside from the third day of the exhaust pipe, and the remaining part passes through the connecting port 20 and enters the drying oven 14 in the intermediate stage.

In this way, the first stage drying oven 13 has a combustion chamber for 2 days and 29 hours.
．． 30 and the hot air from the pipe 37 passing through the hole in the center of the transfer screw 16 heats the mixture being transferred inside and evaporates the moisture, and the evaporated moisture is discharged from the exhaust pipe 38. be done.

Similarly, the mixture is dried in the intermediate stage drying furnace 14 and the final stage drying furnace 15, and the moisture is removed from the exhaust pipe 39.
．． Particularly in the drying furnace 15 at the final stage, the temperature reaches 800 degrees due to the high heat of combustion in the oil burners 25, 26, and 27, and the progress of drying is extremely remarkable.

The temperature of the hot air after passing through the combustion chamber 28, 29, 30 is approximately 45 degrees, but this air passes through the first stage drying oven 13, then the middle stage drying oven 14, and the final stage drying oven 15. , the mixture is exposed to this high temperature heat and its odor is almost eliminated.

Moreover, in the present invention, as shown in FIGS. 5 to 10, the installation locations of the crushers are the first stage drying oven 13, the middle stage drying oven 14, the middle stage drying oven 14, and the last stage drying oven 15. The crusher 50 has two rolls 51 facing each other with a small gap, and rotates in opposite directions to each other so that the adjacent surfaces move downward by meshing of gears 52. When the driving force is transmitted to one of the sprockets 53, both of the sprockets are rotated.

This roll 51 is made of, for example, a stainless steel plate, and has numerous small holes 54 bored in its surface.

In addition, as another embodiment, a wire mesh made of stainless steel wire may be used.

Therefore, when moving from the first stage drying furnace 13 to the intermediate stage drying furnace 14 and from the intermediate stage drying furnace 14 to the final stage drying furnace 15, if raw excrement falls into the crusher 50,
Although it is compressed between the rolls 51, a portion of it enters the small holes 54, and the portion other than the small holes 54 is finely pulverized.

Therefore, the intermediate stage drying oven 14 and the final stage drying oven 15
When the particles fall into the interior and are transferred by the transfer screw 16, they are further finely pulverized and heat is more easily transmitted to the inside of these finely pulverized small lumps, improving drying efficiency.

Further, brushes 55 are provided on the outer surfaces of these two rolls 51.
is in contact with the roll 51 to scrape off raw excrement adhering to the roll 51.

Furthermore, if there is any remaining moisture in the raw excrement when it is compressed between the rolls 51 and 51, this moisture will be squeezed out into the rolls 51 and overflow from the rolls 51. The collected moisture may be received by a receiver 56 as shown in FIG. 10, and then discharged to the outside of the dryer. However, even if this water is not discharged outside the dryer, it becomes water droplets and drips into the next intermediate stage drying oven 14 and the final stage drying oven 15, so it vaporizes in the drying oven and the exhaust pipe 39.40 is discharged from.

〔Effect of the invention〕

As described above, in the present invention, when raw excrement is dried by heating in each drying oven and when the raw excrement is transferred to the next drying oven, countless small gaps are formed by drilling small holes or using wire mesh, etc. I did 2
A pulverizer with rolls of books facing each other crushes them into small clumps, and if there is any remaining moisture in the clumps, it is squeezed out, facilitating smooth transport to the next stage, Since it is in the form of small lumps, heat is easily transferred to the inside, improving drying efficiency.

In addition, the dried raw manure does not lose its fertilizer components, and the mixed sawdust and rice husks also decompose and become fertilizer.

Furthermore, raw manure is dried by heating the drying oven using the combustion heat of the burner and blowing the hot air from the combustion into the drying oven, so thermal efficiency is extremely high, making it economically viable to process large amounts of raw manure in a short period of time. It is possible to reduce the cost and processing cost of the dried manure that becomes the product as fertilizer.

Furthermore, this heat treatment can remove 4 degrees of the bad odor of raw manure, so raw manure from livestock bases can be cleaned and collected every short period of time, which is effective as a countermeasure against bad odor pollution. Since the drying process can be performed fully automatically, it has the advantage of being effective and efficient.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the present invention, Figs. 2 and 3 are sectional views of Fig. 1 with different cutting positions, Fig. 4 is a cross-sectional perspective view of the inside of the drying oven, and Fig. 5. is a schematic side view showing the installation location of the crusher, Figure 6 is a perspective view of the crusher, Figure 7 is a side view of the drive unit in the crusher, Figure 8 is a front view of the roll, and Figure 9 is the scraping. FIG. 10 is a plan view of the brush, and a perspective view of the receiver portion. ■ is hopper 2 is screw 3 is stirring blade 6
13 is the first stage drying oven 14 is the intermediate stage drying oven 15 is the final stage drying oven 16 is the transfer screw 2
0. 24 is a discharge belt conveyor 2 Oil burner 28.29.3 31.35.36.37 is a pipe 33 is an intake chamber 38.39.4 4I is a discharge port 50 is a crusher 54 is a small hole 56 is a receiver

Claims (1)

[Claims] A multi-stage drying furnace equipped with a transfer screw for receiving raw livestock manure and sending it to the next stage drying furnace, provided between at least the final stage drying furnace and the preceding stage drying furnace,
In order to crush the raw excrement sent out from the drying oven in the previous stage, numerous small gaps were formed by drilling small holes or using wire mesh, etc.2
A crushing device that rotates book rolls facing each other, a delivery device that is installed at the exit of the final drying oven to send out the dried material, and a burner that is installed on the bottom of the final drying oven. and a flame guiding wall that guides the flame of the burner through the outer wall surface of the intermediate drying oven to the outer wall surface of the first stage drying oven, and a flame guide wall that guides the flame of the burner through the outer wall surface of the first stage drying oven, and directs the hot air of the flame that has passed through the first stage flame guide wall into the first stage drying oven. What is claimed is: 1. A raw livestock excrement drying machine characterized by comprising: a semiconductor device introduced into the drying oven; and an exhaust pipe provided in each drying furnace.