KR102186896B1 - Anaerobic Digestion Device Easy to Maintenance - Google Patents

Abstract

The present invention relates to an anaerobic digestion tank, and more particularly, has a predetermined volume to provide a space for biogas production and sulfation from the organic waste introduced while the anaerobic microorganisms and sulfated microorganisms inhabit, and the ceiling has a predetermined area. An anaerobic digester body having a chamber body having an opening having an opening, the opening having a chamber body having an upper portion and a lower portion thereof and having a closed side thereof, and a chamber cover detachably positioned on the upper side of the chamber body; A stirring unit for circulating or stirring the organic waste inside the body of the anaerobic digester; And it relates to an anaerobic digester for easy operation and management, characterized in that it comprises a traction unit outside the ceiling.

Description

Anaerobic Digestion Device Easy to Maintenance for easy operation and management

The present invention relates to an anaerobic digestion tank, and more specifically, a chamber part and a stirring part are provided inside the anaerobic digestion tank, and a traction part is provided outside, so that the internal condition of the anaerobic digestion tank is visually checked, or the risk of accidents when replacing or repairing the agitator It relates to an anaerobic digestion tank that is easy to operate and manage that can lower the value and prevent unnecessary disposal of useful gases.

The anaerobic digestion process is also called ‘methane fermentation’, and its main purpose is applied to recover the useful energy of methane at the same time as sewage, manure and food waste treatment. As contained within the term anaerobic digestion, decomposable organic matter in an oxygen-free state without oxygen is decomposed and converted into methane.

When the anaerobic digestion process is specifically described, it is generally divided into four stages, such as a liquefied hydrolysis step, an acid production step, a hydrogen production step, and a methane production step.

In addition to methane, carbon dioxide and nitrogen, the extinguishing gas generated through the above steps contains 200 to 1,500 ppm of corrosive and harmful substances such as hydrogen sulfide and other sulfur compounds, so it operates in a closed structure in terms of safety and recovery rate of methane gas. Should be.

On the other hand, in the digester where anaerobic digestion is in progress, it is common to have a stirrer that uniformizes the concentration of the introduced organic wastes so as to maintain an environment in which methane gas can be generated well along with the decomposition of organic matter. Since it is always in contact with this strong organic waste, it often happens that the stirrer needs to be replaced or repaired.

However, as described above, the gas generated by anaerobic digestion contains a large amount of toxic gas, hydrogen sulfide, including explosive methane gas, and therefore, these gases concentrated in the digester when inspecting, repairing, or replacing the agitator. Since replacement or repair work must be performed after discharging all the gas, the recovery rate of useful gas is lowered, and if the extinguishing gas is not discharged slowly, it can lead to a major accident.

Korean Patent Publication No. 0972219

The present invention was conceived to solve the above-described problem, and when replacing or repairing the agitator installed inside the anaerobic digester, minimize the external discharge of digestion gas to increase the recovery rate of useful gas, and further reduce the working time and safety of work. Its purpose is to provide an anaerobic digester that can expand

In addition, an object of the present invention is to provide an anaerobic digester that can safely and quickly perform tasks when inspecting, repairing, or replacing equipment inside the anaerobic digester.

The anaerobic digestion tank according to the present invention for solving the above problems has a predetermined volume to provide a space where biogas production and sulfation occurs from the organic waste introduced while the anaerobic microorganisms and sulfated microorganisms inhabit, and the ceiling 110 has An opening having a predetermined area is provided, and the opening has a chamber body 131 having an upper portion and a lower portion therethrough, and a side thereof being sealed, and a chamber cover 132 detachably positioned above the chamber body 131 The anaerobic digester body portion 100 is provided with a chamber portion 130 including; A stirring unit 200 for circulating or stirring the organic waste inside the anaerobic digester body unit 100; And it characterized in that it comprises a traction unit 300 outside the ceiling (110).

In addition, in the anaerobic digestion tank of the present invention, the lower end of the chamber body 131 is characterized in that it extends to a predetermined depth below the digestive liquid formed by organic waste.

In addition, in the anaerobic digestion tank of the present invention, the stirring unit 200 is positioned so as to vertically penetrate the inside of the chamber unit 130, but one side is provided with a handle 270 positioned to protrude outside the chamber unit 130, and The other side is an upper support bar 211 extending to a predetermined depth below the digestive solution formed by organic waste, one side is connected to the upper support bar 211 and the other side is near the bottom 120 of the anaerobic digestion tank main body 100 A support bar 210 including an extended lower support bar 212; A motor 220 provided with a screw 230 for circulating or stirring organic waste in the front and a fastening fixture 240 for fixing to the upper support bar 211 at the rear; And a first guide rod 250 in the shape of a column having a lower end fixed to the bottom 120 of the anaerobic digester body 100 and having an empty inside to accommodate the lower support bar 212 To do.

In addition, in the anaerobic digester of the present invention, the horizontal cross section of the upper support bar 211 is a square, the horizontal cross section of the lower support bar 212 and the first guide rod 250 is circular, and the first guide rod ( 250) A first bushing 251 having an upper and lower narrow structure is provided below the interior, and a first protrusion 212-1 having the same shape as the first bushing 251 is provided at the lower end of the lower support bar 212 , The first protrusion 212-2 is characterized in that it is seated on the first bushing 251.

In addition, in the anaerobic digestion tank of the present invention, the traction unit 300 is connected to the first support shaft 311 and the first support shaft 311 positioned perpendicular to the ceiling 110 and bent at a predetermined angle. A support shaft 310 including a second support shaft 312 and capable of rotating in a predetermined radius around the first support shaft 311; A second guide rod 330 having a cylindrical shape having a lower end fixed to the outside of the ceiling 110 and having an empty inside to accommodate the lower end of the first support shaft 311; A first pulley 320 positioned on the first support shaft 311; And a first rope 321 having one side connected to the first pulley 320 and the other side having a hook 322 mounted thereon.

In addition, in the anaerobic digestion tank of the present invention, the traction unit 300 is provided with a second pulley 340 outside the second guide rod 330, one side is connected to the second pulley 340, and the other side is a motor A second rope 341 connected to the rope hanging hole 221 of 220 is further provided.

In addition, in the anaerobic digestion tank of the present invention, a second bushing having an upper beam structure is provided below the inside of the second guide rod 330, and a second bushing having the same shape as the second bushing is provided at the lower end of the first support shaft 311 A second protrusion of the structure is formed so that the second protrusion is seated on the second bushing.

In addition, in the anaerobic digestion tank of the present invention, the traction unit 300 is connected to the first support shaft 311 and the first support shaft 311 positioned perpendicular to the ceiling 110 and bent at a predetermined angle. A support shaft 310 including a second support shaft 312 and capable of rotating in a predetermined radius around the first support shaft 311; A second guide rod 330 having a cylindrical shape having a lower end fixed to the outside of the ceiling 110 and having an empty inside to accommodate the lower end of the first support shaft 311; A first pulley 320 positioned on the first support shaft 311; A first rope 321 having one side connected to the first pulley 320 and the other side having a hook 322 mounted thereon; And a second pulley 340 is provided outside the second guide rod 330, one side is connected to the second pulley 340, the other side is a second connected to the rope hanging hole 221 of the motor 220 It includes a rope 341, and a second bushing having an upper optical lower narrow structure is provided below the inside of the second guide rod 330, and an upper upper lower joint having the same shape as the second bushing at the lower end of the first support shaft 311 The second protrusion of the structure is formed so that the second protrusion is seated on the second bushing, the first rope 321 pulls the motor 220, and the second rope 341 is the chamber cover 132 and / Or characterized in that it can tow the motor 220.

According to the anaerobic digestion tank that is easy to operate and manage of the present invention, it is not necessary to discharge all of the gas filled in the space inside the anaerobic digestion tank to the outside when replacing or inspecting the stirring section, thereby increasing the recovery rate of methane gas and reducing the working time. There is an advantage that it can be shortened.

In addition, according to the anaerobic digestion tank that is easy to operate and manage according to the present invention, even if gas is continuously generated from the body of the anaerobic digestion tank, the gas outside the chamber is not discharged, so that the risk of accidents can be significantly reduced.

In addition, according to the anaerobic digestion tank for easy operation and management of the present invention, there is an advantage that it is possible to rotate the screw inside the anaerobic digester with only a simple operation, and it is very easy to repair or replace equipment such as screws or motors.

1 is a cross-sectional view of an anaerobic digester according to a preferred embodiment of the present invention.
Figure 2 is an enlarged cross-sectional view for explaining the stirring unit provided in the anaerobic digestion tank of the present invention.
Figure 3 is an enlarged cross-sectional view for explaining the coupling structure of the lower support bar and the first guide rod in the stirring portion of the anaerobic digester of the present invention.

In the present application, terms such as "include", "have" or "have" are intended to designate the presence of features, numbers, steps, components, parts, or combinations thereof described in the specification, but one or more other It is to be understood that the presence or addition of features, numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being excluded.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle. Other expressions describing the relationship between components, such as "between" and "just between" or "adjacent to" and "directly adjacent to" should be interpreted as well.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, an anaerobic digester according to the present invention will be described with reference to the accompanying drawings. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions for the same elements are omitted.

1 is a cross-sectional view of an anaerobic digester according to a preferred embodiment of the present invention. As shown in FIG. 1, the anaerobic digestion tank of the present invention includes an anaerobic digestion tank body part 100, a stirring part 200, and a traction part 300.

First, the anaerobic digestion tank body part 100 will be described in detail. The inside of the body part 100 made of a sealed structure accommodates a certain amount of various organic wastes such as livestock wastewater or sewage, while generating biogas containing methane gas and hydrogen sulfide. Here, anaerobic microorganisms that decompose organic matter to generate biogas, and sulfated microorganisms that oxidize hydrogen sulfide contained in biogas to particulate sulfur coexist.

Therefore, the anaerobic digestion tank main body 100 is composed of a space section divided into a ceiling 110, a floor 120 and a side wall (not shown) so that the anaerobic digestion reaction as described above can be performed, and the ceiling 110 will be described later. An opening (not shown) having a predetermined cross-sectional area is formed so that the chamber unit 130 can be installed. The chamber unit 130 installed at the opening has a chamber body 131 whose upper and lower portions are open while the side is sealed, and a chamber cover 132 detachably mounted on the upper side of the chamber body 131 Consists of.

The chamber unit 130 is for checking the condition inside the anaerobic digester or for maintenance such as maintenance of the device. Specifically, the chamber cover 132 is opened to visually check whether the digestion process of organic waste, etc. is normally proceeding, and is used for replacement or repair of the stirring unit 200 to be described later. In other words, the chamber cover 132 is usually closed to prevent various gases such as biogas and hydrogen sulfide generated inside the anaerobic digester body 100 from leaking to the outside, and the chamber cover 132 is opened and opened only when necessary. A specific opening method will be described later.

On the other hand, the chamber body 131 is preferably positioned so that a portion of the lower end is submerged into the digestive solution, while the upper end is preferably extended in close contact with the opening of the ceiling 110, and the agitating unit 200 moves the inside of the chamber unit 130 It is more preferable to position it so as to penetrate vertically.

In the anaerobic digestion tank, biogas such as methane gas and hydrogen sulfide are produced by anaerobic digestion microorganisms, and these biogases are always filled in the upper space of the digestive fluid. Therefore, even if the chamber part 130 is provided, if the lower part of the chamber body 131 is located above the digestive liquid, a large amount of biogas that was filled is discharged at the same time as the chamber cover 132 is opened, so that the manager suffocates or the methane gas explosion Can lead.

However, if a part of the lower end of the chamber body 131 extends to the inside of the digestive solution, the biogas filled in the outer space of the chamber 130 is not discharged and remains as it is, thus significantly reducing the risk of accidents and There is an advantage in that the recovery rate of the gas can be increased.

The following will be described with respect to the stirring unit 200 for circulating or agitating organic waste located inside the anaerobic digestion tank main body 100.

Figure 2 is an enlarged cross-sectional view for explaining the stirring portion provided in the anaerobic digestion tank of the present invention, Figure 3 is an enlarged cross-sectional view for explaining the coupling structure of the lower support bar and the first guide rod in the stirring portion of the anaerobic digestion tank of the present invention.

The stirring unit 200 extends to the bottom 110 of the anaerobic digester body unit 100 while vertically penetrating the interior of the chamber unit 130, the support bar 210, the motor 220, the screw 230, It is configured to include a fastener 240, a first guide rod 250, a first support 260 and a handle 270.

In more detail, the support bar 210 is for fixed support so that the motor 220 and the screw 230 can be stably positioned inside the digestive solution, and the upper support bar 211 and the lower support bar 212 And a horizontal bar 213. A handle 270 is connected to the upper support bar 211 to rotate the support bar 210 at a predetermined angle, and a motor 220, a screw 230 and a fastening fixture 240 are coupled to the lower part. , The lower support bar 212 is connected to the lower end portion.

Here, it is preferable that the handle 240 is positioned to protrude outside the chamber unit 130. That is, if the handle 240 is configured to penetrate the chamber cover 132 and protrude to the outside, when the position of the screw 230 located inside the digestive fluid is required to be changed, the chamber cover 132 is not opened. It is possible to easily rotate the support bar 210.

The lower support bar 212 located under the upper support bar 211 serves as a support to support the weight of the upper support bar 211 to which the motor 220, the screw 230, and the fastening fixture 240 are fixed. And, it is preferable that the first protrusion 212-1 of the upper gwang lower hyeop structure is provided at the lower end, and a detailed description thereof will be described later.

A first guide rod 250 is provided to vertically maintain the support bar 210 in which the upper support bar 211 and the lower support bar 212 are connected, and to stably rotate the support bar 210 . Specifically, the first guide rod 250 fixed to the bottom 120 of the anaerobic digester body 100 and the bottom 120 has a column shape with an empty inside to accommodate a predetermined portion of the lower support bar 212 to be.

Particularly, a first bushing 251 having the same shape and having an upper optical lower narrow structure is provided on the inner floor of the first guide rod 250 to accommodate the first protrusion 212-1, and such a first bushing 251 ) Is preferably made of polypropylene, nylon, or Teflon material that can reduce friction so that it can easily rotate even when the support bar 210 is rotated, or these materials are coated.

A horizontal bar 213 having an area larger than the horizontal cross-sectional area of the lower support bar 212 may be provided at a connection portion between the upper support bar 211 and the lower support bar 212. This horizontal bar 213 is to prevent the support bar 210 from sagging below a predetermined depth.

On the other hand, it is preferable that the horizontal cross section of the upper support bar 211, the lower support bar 212 and the first guide rod 250 is different. Specifically, the horizontal cross section of the upper support bar 211 is a square, and the horizontal cross section of the lower support bar 212 and the first guide bar 250 is circular. If the cross-section of the upper support bar 211 is square, the fastening fixture 240 can be more stably fixed, whereas in order for the support bar 210 to rotate smoothly, the lower support bar 212 and the first guide bar ( 250) is advantageous because it is circular.

Reference numeral 260 denotes a first support, and may be additionally provided between the bottom 120 of the anaerobic digester body 100 and the first guide rod 250, and the first guide rod 250 is the bottom 120 or At least one first reinforcing support 252 may be further provided along the outer surface of the first guide rod 250 so that it can be more reliably fixed to the first support 260.

As described above, at the lower end of the upper support bar 211, the motor 220 and the screw 230 are fixed to the upper support bar 211 through the fastening fixture 240. Specifically, a motor 220 for driving the screw 230 is connected to the rear of the screw 230 for circulating or stirring organic waste, and the fastening fixture 240 so that they can always operate in a fixed position. It is firmly fixed to the upper support 211 by using.

Here, it is preferable that a rope hanging hole 221 and a hook hanging hole 222 are further provided at a predetermined position of the motor 220. A second rope 341, which will be described later, is connected to the rope hanging hole 221 to distribute the load of the motor 220 and the screw 230 coupled to the motor 220, or the motor 220 and the screw It is to lift the anaerobic digester body part 100 outside during inspection or repair of 230.

A hook 322 to be described later may be fastened to the hook hanging hole 222, and the motor 220 and the screw 230 in a state of being lifted to the outside of the anaerobic digester body 100 are vertically and/or horizontally It is to move.

Referring again to Figure 1 will be described with respect to the traction unit 300 provided outside the anaerobic digester body portion 100. The traction unit 300 includes a support shaft 310, a first pulley 320, a second guide rod 330, and a second pulley 340, and the above-described chamber cover 132, a motor ( 220) and the screw 230 to be transported in the vertical and/or horizontal direction.

Specifically, the support shaft 310 located at a predetermined portion outside the ceiling 110 of the anaerobic digester body 100 is a first support shaft 311 having a circular cross section vertically positioned to be perpendicular to the ceiling surface, and the first It comprises a second support shaft 312 connected to the support shaft 311 and bent at a predetermined angle or connected by a separate connection means (not shown), and if necessary, the second support shaft 312 Even when a load is applied, the auxiliary support shaft 313 inclined at a predetermined angle connecting the first support shaft 311 and the second support shaft 312 to each other may be further connected to prevent sagging.

The support shaft 310 configured as described above rotates in a predetermined radius around the first support shaft 311 so that the chamber cover 132, the motor 220, and the screw 230 can be moved horizontally. For this purpose, while the lower end is fixed to the outside of the ceiling 110, a second guide rod 330 in the shape of a cylinder with an empty inside to accommodate a predetermined lower end of the first support shaft 311 is provided. do.

Here, the principle that the first support shaft 311 rotates while the first support shaft 311 is accommodated in the second guide rod 330 is the same as that of the upper support bar 211 described above.

That is, like the upper support bar 211, a second protrusion (not shown) having an upper optical lower narrow structure is provided at the lower end of the first support shaft 311, and a first support shaft 311 at the inner floor of the second guide rod 330 A second bushing of the same shape is provided to accommodate the second protrusion of ), and the second bushing reduces friction so that the second guide rod 330 can move smoothly when rotating. Can be made of polypropylene, nylon or Teflon material or are coated with these materials.

A first pulley 320 is provided at a predetermined position of the first support shaft 311, more specifically above the upper end of the second guide rod 330, and one side is connected to the first pulley 320 and the other The side includes a first rope 321 to which a hook 322 is mounted.

The functions of the first pulley 320, the first rope 321, and the hook 322 as described above are to open the chamber cover 132. Specifically, when the internal condition of the anaerobic digestion tank is visually checked or equipment needs to be inspected, hook 322 to the ring (not shown) of the chamber cover 132 and lift it in the vertical direction, and then the first support shaft ( By rotating 311), the chamber cover 132 can be moved to a safe place that does not interfere with work. In addition, when the motor 220 and the screw 230 need to be repaired or replaced, the motor 220 may be moved to a desired location by hanging it on the hook hole 222 of the motor 220. Of course, in a state in which the motor 220 is immersed in the digestive solution, it is difficult to hook the hook 322 to the hook hanging hole 222, so it is obvious that the motor 220 must be lifted in the vertical direction.

Subsequently, the second pulley 340 is fixed at a predetermined position outside the second guide rod 330, and one side is connected to the second pulley 340 and the other side is the rope hanger hole 221 of the motor 220 A second rope 341 that is always connected to is further provided.

The second guide rod 330, the second pulley 340, and the second rope 341 are in a taut state by connecting the second rope 341 to the rope hanging hole 221 when the inside of the anaerobic digester is normally operated. It is to disperse the load of the motor 220 and the screw 230 by maintaining it, and to lift them in the vertical direction when checking or repairing the motor 220 and the screw 230.

Here, when the motor 220 is lifted, the motor 220 and the fixed motor 220 and the support bar 210 may move together.

Meanwhile, at least one roller, more preferably, a first roller 342 and a second roller 343 may be provided so that the second rope 341 can move more smoothly.

Hereinafter, an operation and management method of an anaerobic digestion tank that is easy to operate and manage according to the present invention will be described.

A second rope 341 is connected to the rope hanging hole 221 to operate the anaerobic digestion tank while maintaining it in a taut state. When the inside of the anaerobic digester is to be visually checked, the chamber cover 132 is lifted with a hook 322, and then the inside is examined, and an abnormality is determined.

If the digestive liquid does not flow at all or is very weak, it can be expected that the motor 220 or the screw 230 is in an abnormal state, and in this case, the second pulley 340 is operated to turn the motor 220 into the anaerobic digester body ( 100) Lift out to repair or replace.

On the other hand, when it is necessary to rotate only the direction of the screw 230 by a predetermined angle without needing to visually check the inside of the anaerobic digester, hold the handle 270 protruding outside the chamber unit 130 and rotate it at a predetermined angle.

Specific parts of the present invention have been described in detail above. For those of ordinary skill in the art, these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby, It is obvious to those skilled in the art that various changes and modifications are possible within the scope and scope of the technical idea, and it is natural that such modifications and modifications fall within the appended claims.

100: anaerobic digester body part
110: ceiling
120: floor
130: chamber part
131: chamber body 132: chamber cover
200: stirring unit
210: support bar
211: upper support bar
212: lower support bar 212-1: first protrusion
213: horizontal bar
220: motor
221: rope hanging hole 222: hook hanging hole
230: screw
240: Fastening fixture
250: first guide rod
251: first bushing 252: first reinforcement support
260: first support
270: handle
300: traction unit
310: support shaft
311: first support shaft 312: second support shaft
313: auxiliary support shaft
320: first pulley
321: first rope 322: hook
330: second guide rod
340: second pulley
341: second rope 342: first roller
343: second roller

Claims (8)

It has a predetermined volume to provide a space for biogas production and sulfation from the organic waste introduced while anaerobic microorganisms and sulfated microorganisms inhabit, and an opening having a predetermined area is provided in the ceiling 110, and the opening In the anaerobic digestion tank, a chamber part 130 including a chamber body 131 having a top and a bottom penetrating through and sealing a side surface and a chamber cover 132 detachably positioned on the upper side of the chamber body 131 is provided. Main body 100;
A stirring unit 200 for circulating or stirring the organic waste inside the anaerobic digester body unit 100; And
Including a traction unit 300 outside the ceiling 110,
The lower end of the chamber body 131 extends to a predetermined depth below the digestive solution formed by organic waste, and the upper end is in close contact with the opening of the ceiling 110,
The stirring unit 200 is positioned so as to vertically penetrate the interior of the chamber unit 130,
One side is provided with a handle 270 positioned to protrude to the outside of the chamber unit 130, and the other side is an upper support bar 211 having a rectangular horizontal cross section extending to a predetermined depth under the digestive solution formed by organic waste, and one side is the A support bar 210 including a lower support bar 212 having a circular horizontal cross section that is connected to the upper support bar 211 and extends to the vicinity of the bottom 120 of the anaerobic digester body 100 on the other side;
A motor 220 provided with a screw 230 for circulating or stirring organic waste in the front and a fastening fixture 240 for fixing to the upper support bar 211 at the rear; And
The lower end portion is fixed to the bottom 120 of the anaerobic digester body portion 100, and includes a first guide rod 250 in a cylindrical shape with an empty inside to accommodate the lower support bar 212,
Below the inside of the first guide rod 250, a first bushing 251 is provided, which is formed of or coated with any one of polypropylene, nylon, and Teflon, and has an upper-glow narrow structure, and a lower end of the lower support bar 212 In the anaerobic digester, characterized in that a first protrusion 212-1 having the same shape as the first bushing 251 is provided, and the first protrusion 212-1 is seated on the first bushing 251.
delete delete delete The method of claim 1,
The traction part 300,
A first support shaft 311 positioned vertically with respect to the ceiling 110, a second support shaft 312 connected to the first support shaft 311 and bent at a predetermined angle, and a first support shaft ( A support shaft 310 capable of rotating in a predetermined radius around 311);
A second guide rod 330 having a cylindrical shape having a lower end fixed to the outside of the ceiling 110 and having an empty inside to accommodate the lower end of the first support shaft 311;
A first pulley 320 positioned on the first support shaft 311; And
Anaerobic digester, characterized in that it comprises a first rope (321) connected to the first pulley (320) on one side and a hook (322) on the other side.
The method of claim 5,
The traction part 300,
A second pulley 340 is provided outside the second guide rod 330, one side is connected to the second pulley 340, and the other side is a second rope connected to the rope hanger hole 221 of the motor 220 Anaerobic digestion tank, characterized in that (341) is further provided.
The method of claim 6,
The second guide rod 330 is provided with a second bushing having an upper and lower narrow structure, and a second protrusion having the same shape as the second bushing is formed at the lower end of the first support shaft 311 Anaerobic digester, characterized in that the second protrusion is seated on the second bushing.
The method of claim 1,
The traction part 300,
A first support shaft 311 positioned vertically with respect to the ceiling 110, a second support shaft 312 connected to the first support shaft 311 and bent at a predetermined angle, and a first support shaft ( A support shaft 310 capable of rotating in a predetermined radius around 311);
A second guide rod 330 having a cylindrical shape having a lower end fixed to the outside of the ceiling 110 and having an empty inside to accommodate the lower end of the first support shaft 311;
A first pulley 320 positioned on the first support shaft 311;
A first rope 321 having one side connected to the first pulley 320 and the other side having a hook 322 mounted thereon; And
A second pulley 340 is provided outside the second guide rod 330, one side is connected to the second pulley 340, and the other side is a second rope connected to the rope hanger hole 221 of the motor 220 Including (341),
The second guide rod 330 is provided with a second bushing having an upper and lower narrow structure, and a second protrusion having the same shape as the second bushing is formed at the lower end of the first support shaft 311 The second protrusion is seated on the second bushing,
The first rope 321 pulls the motor 220,
The second rope 341 is an anaerobic digester, characterized in that it can traction the chamber cover 132 and/or the motor 220.

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