JPH0543671B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a raw livestock manure drying machine that mixes raw livestock manure and sawdust, and dries the mixture to form a powder to provide fertilizer. It is related to.

[Conventional technology and its issues]

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.

Therefore, even if livestock traders try to remove the manure and throw it away as soon as possible, there is currently no place to accept it because it gives off a bad odor in the place where it is thrown away.

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

The present invention was developed in view of the current situation, and an object of the present invention is to provide a raw livestock manure drying machine that not only makes livestock manure odorless but also uses it as fertilizer. It is.

[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 hopper for storing raw livestock excrement, and receives the raw excrement sent out from the hopper and sends it to the next stage drying furnace. A drying furnace is provided between a multi-stage drying furnace equipped with a transfer screw having ventilation holes, at least a final stage drying furnace, and a previous stage drying furnace, and crushes the raw excrement sent from the previous stage drying furnace. A crushing device, a delivery device installed at the outlet of the final stage drying furnace to send out the dried material, a burner installed at the bottom of the final stage drying furnace, and a flame of the burner is transferred to the intermediate stage drying furnace. A flame guiding wall that passes through the outer wall surface and guides it to the outer wall surface of the first stage drying oven, an introduction device that introduces the hot air of the flame that has passed through the first stage flame guiding wall into the first stage drying oven, and each drying oven is provided with a The exhaust pipe is characterized by being equipped with an exhaust pipe.

[Effect]

In the livestock manure drying machine of the present invention, a mixture of raw livestock manure and sawdust is mixed in advance;
Alternatively, raw livestock manure and sawdust that are directly put into the hopper are stirred by a stirring blade, and the mixture is sent into the first stage drying oven.

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

In the intermediate drying oven, the mixture is continuously dried while being transferred by the transfer screw by heating the outer wall surface with the flame of the burner, and the steam accompanying the drying is released from the exhaust stack. It is discharged.

During such drying, the mixture may form lumps, but before being sent to the final stage drying oven, the mixture is crushed into powder by a crushing device and transferred to the final stage drying oven by a screw. During the transfer, the wall surface is heated by the flame of the burner and is completely dried.

The dried mixture is then delivered by a delivery device and either transported to a fermentation plant or immediately bagged.

[Embodiments of the invention]

Next, one embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a hopper, in which a shaft 4 having a screw 2 and stirring blades 3 is rotatably supported in the vertical direction, and this shaft 4 is driven by a motor speed reducer 5. A blocking door 6 is provided at the bottom of the hopper 1, and when this door is closed, the items stored in the hopper 1 are prevented from falling.

Inside this hopper 1, raw manure from livestock is fed at a ratio of 3 parts sawdust to 7 parts of raw manure, although this varies slightly depending on the moisture content of the raw manure, and with the shutoff door 6 closed, the shaft 4 is Rotate and stir these thoroughly to form a mixture.

The lower part of the blocking door 6 constitutes a cylindrical body 7 consisting of two forks 7a and 7b, and inside, a belt 10 made of perforated urethane rubber is supported by rollers 9 and 11 so that it can rotate in a cylindrical shape. When the roller 9 and the delivery roll 8 are rotated by a motor (not shown), the belt 10
rotates in the same shape.

When the blocking door 6 is opened, the mixture in the hopper 1 is guided by the guide plate 12 at the top of the cylinder 7 and falls onto the belt 10. Then, together with the air sucked in from one of the two forks 7a, it falls to the other two forks 7b through the belt 10 and the delivery roller 8, and this two forks 7b is connected to one side of the first stage drying oven 13. are doing.

The rotational speeds of the rollers 8 and 9 are controllable, so that the rotational speed of the belt 10 can be changed, and the amount of the mixture falling into the drying oven 13 can be adjusted.

The first-stage drying oven 13 described above, the intermediate-stage drying oven 14, and the final-stage drying oven 15, which will be described later, are made of stainless steel and have a cylindrical shape for heat conduction and corrosion resistance. A shaft 17 of a transfer screw 16, which is mounted on a shaft, is rotatably accommodated.

As shown in FIG. It is fixed.

Then, the first stage drying oven 13 and the final stage drying oven 1
The helical directions of the transfer screws 16 of No. 5 and the transfer screws 16 of the intermediate drying oven 14 are opposite, and each transfer screw 16 is driven by a belt 19 from a motor 18 and rotates in the same direction. There is.

Therefore, in the drying oven 13 at the first stage and the drying oven 15 at the final stage, the mixture is sent by the transfer screw 16 from the right to the left in FIG. 1, but in the drying oven 14 at the intermediate stage, Sent from left to right.

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

Furthermore, in the drying oven 14 at the intermediate stage, it is also sent from the left to the right while being stirred by the transfer screw 16, and a communication port 21 provided near the right end
From there, it falls into the drying oven 15 at the final stage.

While the mixture is thus transferred by the transfer screw 16, the mixture is heated as will be described later, and its moisture evaporates, forming a lump. This lumpy mixture is
1, it is again crushed into powder by a crusher 22 provided in the connecting port 21.

Then, while being moved from the right to the left in the drying oven 15 at the final stage by the transfer screw 16, it is continuously stirred, and most of the water is evaporated leaving a small amount of water as described below. , and is discharged downward from the discharge port 41 in a dry state.

Since this discharge port 41 is also provided with a crusher 23, if any lumps are formed in the mixture, they are crushed and transferred to the discharge belt conveyor 2.
4, where it is carried and stuffed into bags.

Three oil burners 25, 26, 27 are installed below the drying oven 15 in the final stage, and each oil burner 25, 26, 27 is provided with an independent combustion chamber 28, 29, 30, respectively. . 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 heats the mixture transferred within each drying oven 13, 14, 15.

The hot air in one of the three combustion chambers 28, 29, and 30 is guided to the suction side of the blower 32 by the pipe 31, and is sent into the intake chamber 33 by the blower 32. . This intake chamber 33 has a throttle opening 34 formed therein to increase the speed of hot air sent from the combustion chamber 28 by the blower 32, and the combustion chambers 29, 30 are formed at the back of the throttle opening 34.
Pipes 35 and 36 leading to are open.

Therefore, the hot air from the combustion chamber 28 passing through the throttle port 34 sucks out the hot air in the combustion chambers 29 and 30 and mixes it in the intake chamber 33. This mixed hot air is sent into the first-stage drying oven 13 through a pipe 37, passes through the inside, and is partially discharged to the outside from the intake pipe 38, while the rest is left at the connecting port 2.
0 and enters the intermediate stage drying oven 14.

In this way, the first stage drying furnace 13
8, 29, and 30, and the hot air from the pipe 37 passing through the hole in the center of the transfer screw 16, the mixture being transferred inside is heated to evaporate the moisture, and the evaporated moisture is is exhausted from the exhaust stack 38. Similarly, the mixture is dried in the intermediate stage drying oven 14 and the final stage drying oven 15, and the moisture is discharged from the exhaust pipes 39 and 40. Due to the high-temperature heat of combustion in the oil burners 25, 26, and 27, the temperature reaches about 800 degrees, and the progress of drying is extremely remarkable.

After passing through the combustion chambers 28, 29, and 30, the hot air reaches a temperature of approximately 45 degrees, but this air passes through the first stage drying oven 13, then the middle stage drying oven 14, and then the final stage drying oven 15. Therefore, the mixture is exposed to this high-temperature air, and its odor is almost eliminated.

〔Effect of the invention〕

The present invention, as described above, dries a mixture of raw livestock dung and sawdust by burning in a burner,
It is ground into powder and used as fertilizer.

Therefore, the fertilizer components of raw manure are not lost, and sawdust also becomes fertilizer through decomposition, and since it has been dried, it cannot be sprayed on fields. It absorbs moisture from the air and becomes the perfect fertilizer.

In addition, the drying process is carried out 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 high and it is economical to process large amounts of raw excrement in a short period of time. This method can reduce the cost of fertilizer products and processing costs.

Furthermore, this heating can remove the foul odor of raw manure and eliminates the problem of disposing of raw manure, making it possible to clean raw livestock manure every short period of time, making it an effective countermeasure against foul odor pollution. It is.

Moreover, since the above-mentioned heating and drying of the raw feces can be performed fully automatically, the raw feces can be effectively and efficiently processed.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention, Figures 2 and 3 are cross-sectional views of Figure 1 with the cutting position changed, and Figure 4 is a cross-sectional perspective view of the inside of the drying oven. be. 1 is a hopper, 3 is a stirring blade, 6 is a blocking door, 13
14 is the first stage drying oven, 14 is the middle stage drying oven, 15 is the final stage drying oven, 16 is the transfer screw, 16a
is an arm, 17 is a shaft, 20 is a connection port, 22, 23 are a crusher, 24 is a discharge belt conveyor, 25, 2
6 and 27 are oil burners, 28, 29, and 30 are combustion chambers, 31, 35, 36, and 37 are pipes, 32 is a blower, 33 is an intake chamber, 38, 39, and 40 are exhaust stacks, and 41 is an exhaust port.

Claims (1)

[Claims] 1. A drying oven equipped with a hopper for storing raw livestock manure, a multi-stage drying furnace equipped with a transfer screw having ventilation holes for receiving the raw manure sent out from the hopper and sending it to the next drying furnace, and at least a final stage. A crushing device is installed between the drying furnace in the first stage and the drying furnace in the previous stage to crush the raw excrement sent out from the drying furnace in the first stage, and a crushing device is installed at the outlet of the drying furnace in the final stage to crush the dried material. A sending device, a burner provided on the lower surface of the final stage drying oven, and a flame guiding wall that guides the flame of the burner through the outer wall surface of the intermediate stage drying oven to the outer wall surface of the first stage drying oven. A raw livestock excrement drying machine characterized by comprising an introduction device for introducing hot air from a flame that has passed through a first-stage flame guide wall into a first-stage drying furnace body, and an exhaust pipe provided in each drying furnace.