KR102029879B1 - A aerator for livestock excretions tank - Google Patents

Abstract

The present invention relates to an aerator for a livestock excretion tank consisting of a casing (100), an intake duct (200), a motor (300), a first impeller (400) and an air smasher (500). Air passing through the air smasher interferes and rubs with the first impeller and is dispersed to be fine particles, thereby forming microbubbles. The microbubbles formed through dispersion are rapidly dissolved in the livestock excretion to increase the dissolved oxygen amount. Accordingly, proliferation of microorganisms and fermentation of organic matters are stably and rapidly performed.

Description

Aeration apparatus for livestock sewage treatment tanks {A aerator for livestock excretions tank}

The present invention relates to an aeration apparatus for livestock sewage treatment tanks, and more particularly, to an aeration apparatus for livestock sewage treatment tanks capable of easily generating fine bubbles and performing aeration and defoaming together.

In farms raising livestock, manure and liquid livestock manure are inevitably discharged, such as manure excretion. Sewage, etc. generated during the cleaning process of liquid manure and livestock during the manure (hereinafter referred to as 'livestock sewage') has a relatively long distance from the livestock dense area to farmland, which makes it difficult to transport and odors generated when spraying on farmland. For such reasons, there are quite a few problems to use by directly spraying on farmland.

However, livestock sewage can also be prepared for liquid fertilization by microbial decomposition, and in this case, it is known that decomposition using aerobic microorganisms is faster than maturation using anaerobic microorganisms.

In order to mature livestock sewage by the decomposition method using aerobic microorganisms, conditions such as nutrient source, temperature, moisture, and air (oxygen) must be provided so that aerobic microorganisms can flourish. Part of the manure is also included in the livestock manure, which is sufficient as a nutrient source for microorganisms, and because the heat is generated when microorganisms decompose organic matters, the temperature conditions are sufficient, and liquid livestock sewage contains a large amount of water due to its properties. Moisture will also be sufficient for microbial activity, so the key to fostering active conditions of microorganisms will be to increase the amount of dissolved oxygen in the livestock sewage treatment tank by supplying sufficient air (oxygen) in the livestock sewage treatment tank. .

In the case of composting of solid manure, voids are formed by mixing a bulking agent such as sawdust or rice husk, so that the air (oxygen) naturally enters the voids and maintains aerobic conditions without supplying air separately. In the case of filthy water, aerobic microorganisms in the liquid are required to use aeration treatment to forcibly supply air (oxygen) in the liquid so that active decomposition can be easily performed using dissolved oxygen.

1. Republic of Korea Patent No. 10-1202479 (Animal Sewage Treatment Tank Aeration System)

The present invention is to provide a livestock sewage treatment tank aeration apparatus that can increase the dissolved oxygen by forming fine bubbles by dispersing the external air sucked through the air crushing mechanism to fine particles, and supplying the microbubbles to the livestock sewage treatment tank. There is this.

Another object of the present invention is to provide an aeration apparatus for livestock sewage treatment tanks that can simultaneously perform aeration and defoaming.

The present invention for achieving the above object,

The inside is open to the bottom, but the inside is divided into spaces by the first partition plate, the upper and lower motor receiving chamber and the bubble generating chamber is provided, respectively, the lower inner peripheral surface of the bubble generating chamber is in communication with the outside A casing provided with a water outlet;

An inlet pipe configured to be disposed between the first partition plate and the outlet port so that one end is in communication with the bubble generating chamber and the other end is exposed to the surface to provide a passage for allowing external air to flow into the bubble generating chamber;

A motor having a motor shaft penetrating the first partition plate and disposed inside the bubble generating chamber, the motor being accommodated in the motor accommodation chamber to rotate the motor shaft;

A first impeller installed on the motor shaft, the first impeller being rotated by the motor shaft to provide a negative pressure so that air can be introduced through the inlet pipe, and microbubble the introduced air;

And an air crushing mechanism disposed in an upper portion of the first impeller, installed in the inner circumferential surface of the bubble generating chamber, and formed with an acceleration hole for increasing and crushing the flow rate of air sucked by the first impeller. It is done.

Here, the acceleration hole is characterized in that the same size or different in size.

In the present invention, the step portion is provided on the inner peripheral surface of the bubble generation chamber,

The air crushing mechanism is mounted on the stepped portion is characterized in that it is fixed by the fixing means.

Here, the air shredding mechanism is characterized in that the two to five are fitted apart from each other along the motor shaft.

Here, the air crushing mechanism is characterized in that the acceleration hole is smaller from the top to the bottom.

In the present invention, the head is divided by the second partition plate formed in the bubble generating chamber is formed between the motor chamber and the bubble generating chamber, the inlet provided on the inner circumferential surface of the head chamber and communicate with the outside,

An outlet tube, one end of which is in communication with the head chamber so as to be disposed between the first dividing plate and the inlet, the other end of which is exposed above the surface of the water, and an air outlet tube which removes air bubbles from the water by water discharged through the other end;

It is installed on the motor shaft, the second impeller is rotated by the motor shaft to allow the water to flow through the inlet port to send the introduced water to the outlet pipe is characterized in that it is further provided with reinforcement.

In the present invention, one end is connected in communication with the outlet pipe, the other end is installed so as to face the inlet port is to be further provided with a branch pipe for receiving water flowing along the outlet pipe and sprayed toward the inlet.

According to this embodiment, the air passing through the air crushing mechanism is finely dispersed while being interfered and rubbed by the first impeller to form fine bubbles, and the fine bubbles formed by dispersing are rapidly dissolved in the livestock sewage so that the dissolved oxygen amount is reduced. To increase, there is an advantage that can make the growth of microorganisms and organic fermentation more quickly and stably.

In addition, the present invention can simultaneously perform aeration and defoaming, which is economical and effective.

1 is a view showing a first embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention.
Figure 2 is a perspective view taken separately from the air shredding mechanism in the aeration apparatus for livestock sewage treatment tank according to the present invention.
3 is a view for explaining the operation of the first embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention.
Figure 4 is a view showing a second embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention.
5 is a view showing a third embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail.

1 is a view showing a first embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention, Figure 2 is a perspective view taken separately from the air shredding mechanism in the aeration apparatus for livestock sewage treatment tank according to the present invention.

1 and 2, the aeration apparatus for livestock sewage treatment tank according to the first embodiment includes a casing 100, an inlet pipe 200, a motor 300, a first impeller 400, and an air crushing mechanism 500. It consists of

The casing 100 constitutes an external appearance and is housed in a treatment tank (not shown) in which livestock wastewater is stored.

For example, the casing 100 is connected to each other suspended through a line to the floating body (for example, a tube) supported by the livestock sewage.

The casing 100 is formed in a cylindrical shape with the inner side open to the lower end, and the inner space is divided by the first partition plate 111 so that the motor accommodation chamber 112 and the bubble generating chamber 113 are respectively disposed at the upper and lower portions thereof. ) Is provided, the outlet port 114 in communication with the outside is provided on the inner peripheral surface of the lower portion of the bubble generation room (113).

The inlet pipe 200 serves as a passage so that external air can flow into the casing 100.

One end of the inlet pipe 200 is disposed between the first partition plate 111 and the outlet port 114 to communicate with the bubble generating chamber 113, and the other end is exposed above the water surface (livestock sewage).

At this time, the other end of the inlet pipe 200 is preferably protruded relatively higher than the water surface so that only the outside air can be introduced while minimizing the inflow of livestock sewage.

In addition, the other end of the inlet pipe 200 may be provided with a silencer to reduce the noise when the air intake.

The motor 300 is driven by being supplied with power by an external separate switch, and includes a motor shaft 310 and is accommodated in the motor accommodating part 112 of the casing 100. It penetrates through the one-split plate 111 and is vertically disposed in the bubble generation chamber 113.

It is preferable to prevent the livestock sewage from flowing into the motor accommodating part 112 through the sealing process between the motor shaft 310 and the first partition plate 111.

The first impeller 400 is installed on the motor shaft 310, in the present embodiment is rotated by the motor shaft 310 is introduced while providing a sound pressure to allow the air to flow through the inlet pipe 200 It serves to microbubble the air.

The air crushing mechanism 500 is a plate having a predetermined thickness, is manufactured in the same shape as the inner cross-section of the bubble generating chamber 113 is installed between the inlet pipe 200 and the first impeller 400.

In addition, a shaft hole 510 is provided at the center of the air crushing mechanism 500 so that the motor shaft 310 can be inserted therethrough, and an acceleration hole 520 is radially formed around the shaft hole 510. .

The size of the acceleration hole 520 may be made to be the same, or may be made different from each other, if the acceleration hole 520 is made to be different from each other than to make the size of the acceleration hole 520 the same. The flow of air passing through can be changed (different in speed), and the air passed at different speeds in this way is dispersed and finely dispersed while interfering and rubbing by the first impeller 400 to form microbubbles. The micro bubbles formed by dispersing are rapidly dissolved in livestock sewage to increase the amount of dissolved oxygen, and thus there is an advantage that the growth of microorganisms and fermentation of organic matter can be made more quickly and stably.

On the other hand, the air crushing mechanism 500 may be fixed to the outer circumferential surface is disposed on the inner circumferential surface of the bubble generating chamber 113 by the welding, it is difficult to replace later.

In this embodiment, the stepped portion 115 is provided on the inner circumferential surface of the bubble generating chamber 113, the air shredding mechanism 500 is seated on the stepped portion 115, and then the fixing means (screw bolts) are mounted. Interlocking with each other, thereby improving the convenience of replacement.

On the other hand, the air shredding mechanism 500 may be installed in the casing 100 in a single, or may be installed in multiple stages (two to five stages), as shown in Figs.

When the air shredding mechanism 500 is installed in two stages, as shown in the present embodiment, a spacer S intervenes between the air shredding mechanism 500 disposed at the top and the air shredding mechanism 500 'disposed at the bottom. As a result, the air crushing mechanism 500 disposed above and the air crushing mechanism 500 ′ disposed below have a structure spaced apart from each other.

In addition, the size of the acceleration hole 520 'of the air crushing mechanism 500' disposed at a lower portion is smaller than the acceleration hole 520 of the air crushing mechanism 500 disposed at the upper portion. When the size of the acceleration holes 520 and 520 'is reduced, the flow velocity of the air passing through the air crushing mechanism 500 can be accelerated more quickly. Accordingly, the accelerated air passes through the first impeller 400. As a result of the interference and friction, the finer particles are dispersed to form fine bubbles, which are rapidly dissolved in the livestock sewage, thereby further increasing the dissolved oxygen amount, thereby allowing the livestock sewage to be treated more quickly.

Referring to the operation of the first embodiment of the aeration apparatus for livestock sewage treatment tank of the present invention having the structure as described above is as follows.

First, the aeration device according to the first embodiment of the present invention is introduced into a livestock sewage treatment tank (not shown).

When power is supplied to the motor 300 in the state as described above, the motor shaft 310 of the motor 300 is rotated, whereby the first impeller 400 is rotated, the first impeller ( As the negative pressure is generated in the bubble generation chamber 113 by the rotation of 400, outside air flows into the bubble generation chamber 113 through the inlet pipe 200.

The external air introduced as described above is sucked by the first impeller 400 to pass through the acceleration hole 520 of the air crushing mechanism 500, wherein the acceleration hole 520 passes through the air crushing mechanism 500. Accelerates the flow rate of the air to pass, and thus the air passed through the acceleration is dispersed and finely processed while the interference and friction by the first impeller 400 to form a fine bubble, so that dissolved quickly while dissolved in the livestock sewage By increasing the amount of oxygen even more, it is possible to process livestock waste more quickly.

On the other hand, when bubbles generated during the aeration process of livestock sewage work with the organic liquid urine component in the treatment tank, a lot of bubbles are generated. ) It contaminates the surrounding environment by floating the surface, passing outside the treatment tank, or flying out of the treatment tank to smell bad.

In this case, the present invention further solves this problem by reinforcing the means for effectively defoaming bubbles generated during the treatment of livestock wastewater.

And if the livestock sewage treatment tank aeration apparatus of the first embodiment has only an aeration function, the livestock sewage treatment tank aeration apparatus of the second embodiment adds a defoaming function to the aeration function, which is merely an additional function. It is a big feature in that it can use both functions with one device.

Figure 4 is a view showing a second embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention, the casing 100 and the inlet pipe 200, the motor 300, the first impeller 400, air shredding mechanism 500, an outlet pipe 600, and a second impeller 700.

The casing 100 is generally the same as the casing 100 of the first embodiment, except that the head 117 and the inlet 118 are further reinforced by the second partition plate 116. Different.

In more detail, the second partition plate 116 is installed in the bubble generating chamber 113 constituting the casing 100, and the space is divided by the second partition plate 116 to accommodate the motor. A head chamber 117 is formed between the chamber 112 and the bubble generating chamber 113.

In addition, an inlet 118 communicating with the inside is provided on an inner circumferential surface of the head 117, and livestock sewage flows freely through the inlet 118.

In addition, it is preferable to seal between the second partition plate 116 and the motor shaft 310.

The inlet pipe 200 and the motor 300, the first impeller 400 and the air shredding mechanism 500 are the same as in the first embodiment, so a detailed description thereof will be omitted.

The outflow pipe 600 serves as a passage to discharge livestock wastewater introduced through the headroom 117.

The outlet pipe 600 is disposed between the first partition plate 111 and the inlet 118 to communicate with the head chamber 117, the other end is exposed over the water surface (livestock sewage).

For example, the outlet pipe 600 is provided with a distribution pipe 600 'having a plurality of injection nozzles 610, and the livestock sewage introduced into the distribution pipe 600' through the outlet pipe 600 is the injection nozzle. Sprayed through 610 to quickly deflate the foam.

The second impeller 700 is installed in the motor shaft 310 of the motor 300 penetrating the head chamber 117, where the second impeller 700 is a livestock sewage to the outside through the outlet pipe 600 It acts to suck livestock sewage so that it can be discharged.

That is, in the present invention, since the first impeller 400 for aeration and the second impeller 700 for defoaming are rotated by one motor shaft 310, the overall structure can be simplified, and thus easy to manufacture. There is an advantage to reduce the production cost.

5 is a view showing a third embodiment of the aeration apparatus for livestock sewage treatment tank according to the present invention.

The aeration apparatus for livestock sewage treatment tank according to the third embodiment has the same structure as the aeration apparatus for livestock sewage treatment tank according to the second embodiment, except that the branch pipe 800 is further provided with an outlet pipe 600. Only point is different.

One end of the branch pipe 800 is connected to each other in communication with the outlet pipe 600, the other end is installed to face the inlet 118.

As an example, the livestock sewage flowing along the outlet pipe 600 is introduced into the branch pipe 800 and sprayed to the inlet 118 through the end of the branch pipe 800, thereby blocking the inlet 118. It can be solved at the source.

On the other hand, if necessary, the branch pipe 800 may be further reinforced with a valve (mechanical or electronic) capable of intermittent the flow path therein.

Hereinafter, the effects of the present invention will be described in detail through examples.

<Example>

The aeration device as shown in FIG. 1 was manufactured to measure the amount of change in dissolved oxygen, and the results are shown in Table 1 below. In Comparative Example 1, the air fracturing mechanism was not attached. An air crushing mechanism having an accelerating hole having a diameter of 1.0 cm was attached. In Example 2, an air crushing mechanism having an accelerating hole having a diameter of 0.5 cm was formed at the bottom of the same apparatus as in Example 1, with a further 2 cm apart. There is a difference.

The livestock sewage treatment tank measured the dissolved oxygen at a depth of 1m after aeration for 1 hour under the same conditions in which the livestock sewage was filled with 2/3 of livestock sewage with a size of 1.5m in width, length, and depth.

Dissolved Oxygen Amount (mg / L) Before aeration After aeration Comparative Example 1 6.3 8.2 Example 1 6.4 9.4 Example 2 6.3 10.2

As shown in Table 1, since the dissolved oxygen amount was higher in Example 1 with the air crushing device than in Comparative Example, the bubbles made in Example 1 reached a finer and deeper place, and thus the time for staying in the treatment tank was longer. It was found that, in Example 2 having an air shredding device having two stages, the amount of dissolved oxygen was increased more than that of Example 1, which doubled the effect as an aeration device.

As described above, the present invention has been described in detail through the specific embodiments described, but it will be obvious to those skilled in the art that various modifications and changes can be made within the technical scope of the present invention, and such modifications and modifications belong to the appended claims. Is a matter of course.

DESCRIPTION OF SYMBOLS 100 Casing 111 First divider 112 Motor accommodating part
113: bubble generation room 114: outlet 115: step
116: second partition 117: heading chamber 118: inlet
200: inlet pipe 300: motor 310: motor shaft
400: first impeller 500: air shredding mechanism 510: shaft hole
520: Acceleration hole 600: Outflow pipe 600 ': Distribution pipe
610: injection nozzle 700: second impeller 800: branch pipe

Claims (7)

The inside is open to the lower end of the cylindrical shape, the interior is divided into space by the first partition plate 111, the motor accommodation chamber 112 and the bubble generating chamber 113 is provided in the upper and lower, respectively, bubbles A water outlet 114 communicating with the outside is provided on the inner circumferential surface of the lower end portion of the production chamber 113, and the space is divided by the second partition plate 116 formed inside the bubble generating chamber 113 so that the motor accommodation chamber 112 is provided. ) And a foaming chamber 117 is formed between the bubble generating chamber 113, the inlet 118 is provided on the inner circumferential surface of the lifting chamber 117 to communicate with the outside;
One end is communicated with the bubble generating chamber 113 and the other end is exposed to the surface so as to be disposed between the first partition plate 111 and the outlet port 114 so that external air can flow into the bubble generating chamber 113. Inlet pipe 200 to provide;
A motor 300 having a motor shaft 310 penetrating the first partition plate 111 and disposed inside the bubble generating chamber 113, and accommodated in the motor accommodating chamber 112 to rotate the motor shaft 310. );
A first impeller 400 installed on the motor shaft 310 to rotate by the motor shaft 310 to provide a negative pressure so that air can be introduced through the inlet pipe 200 to microbubble the introduced air;
Fitted through the motor shaft 310 to be disposed on the upper portion of the first impeller 400 is installed on the inner circumferential surface of the bubble generating chamber 113, to increase and crush the flow rate of air sucked by the first impeller 400 An air crushing mechanism 500 in which the acceleration hole 520 is radially formed around the motor shaft 310;
One end is communicated with the head chamber 117 so as to be disposed between the first partition plate 111 and the inlet 118, the other end is exposed over the water surface, the outflow to remove air bubbles in the water by the water discharged through the other end Tube 600;
A second impeller 700 installed at the motor shaft 310 and configured to rotate by the motor shaft 310 to allow the water to be introduced through the inlet 118 and to send the introduced water to the outlet pipe 600;
One end is connected in communication with the outlet pipe 600, the other end is installed so as to face the inlet 118, the branch pipe 800 for receiving the water flowing along the outlet pipe 600 and sprayed toward the inlet 118; Aeration device for livestock sewage treatment tank comprising a.
The method of claim 1,
The accelerating hole (520) is the same size or aeration apparatus for livestock sewage treatment tank, characterized in that different sizes from each other.
The method according to claim 1 or 2,
The stepped portion 115 is provided on the inner circumferential surface of the bubble generating chamber 113,
The air shredding mechanism 500 is aeration device for livestock sewage treatment tank, characterized in that mounted on the stepped portion 115 is fixed by a fixing means.
The method according to claim 1 or 2,
The air shredding device 500 is aeration device for livestock sewage treatment tank, characterized in that the two to five are spaced apart from each other along the motor shaft (310).
The method of claim 4, wherein
The air shredding device 500 is aeration device for livestock sewage treatment tank, characterized in that the acceleration hole 520 is smaller from the top to the bottom. delete delete

Images