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KR-102964006-B1 - Injection apparatus of organic material for anaerobic digestion promotion of fermenter

KR102964006B1KR 102964006 B1KR102964006 B1KR 102964006B1KR-102964006-B1

Abstract

The present invention relates to an injection device (100) capable of improving the fermentation efficiency of organic waste by injecting organic matter, microorganisms, or additives into a fermentation tank (10) containing organic waste such as livestock manure or food waste. In particular, it is capable of directly injecting organic matter into the interior, including the upper portion, and allowing it to flow down to the lower portion, thereby forming a uniform distribution of organic matter, which facilitates the anaerobic digestion process and promotes biogas generation while improving sludge treatment efficiency. The device comprises an organic matter injection device (100) for promoting anaerobic digestion of a fermentation tank, wherein the device forms a sealed fermentation space (11) inside and has an openable door formed on the front side to allow for simultaneous inflow and outflow, and walls (12) are formed on both sides of the fermentation space (11). In this device (100), the device injects organic matter into the organic waste contained in the fermentation space (11). A plurality of injection devices (100) installed at a predetermined interval on the upper portion of the walls (12) located on both sides or one side of the fermentation tank (10) are... It is characterized by being composed of an injection pipe section (110) that is connected to a storage tank (not shown) and has one side connected to a hinge section (130) provided on the inner upper side of a wall (12) and extends into a fermentation space (11), and a cylinder (120) that has one side connected to the upper side of the other side of the injection pipe section (110) located in the fermentation space (11), and has the other side fixed to the upper side of the wall (12) and performs reciprocating motion of contraction and extension to cause rotation of the injection pipe section (110) with respect to the hinge section (130).

Inventors

  • 선영근
  • 이주현

Assignees

  • 유한회사 남부열병합발전소

Dates

Publication Date
20260512
Application Date
20250717

Claims (6)

  1. In an organic material injection device (100) for promoting anaerobic digestion of a fermentation tank, wherein an organic material is injected into organic waste contained in the fermentation space (11) of a fermentation tank (10), which has a sealed fermentation space (11) formed inside and an openable door formed on the front side to allow simultaneous inflow and outflow, and walls (12) formed on both sides of the fermentation space (11), An organic material injection device for promoting anaerobic digestion of a fermentation tank, characterized in that a plurality of injection devices (100) installed at a predetermined interval on the upper surface of a wall (12) located on both sides or one side of the fermentation tank (10) are composed of an injection pipe section (110) that is connected to an external organic material storage tank and has one side connected to a hinge section (130) provided on the inner upper surface of the wall (12) and extends into a fermentation space (11), and a cylinder (120) that has one side connected to the upper surface of the other side of the injection pipe section (110) located in the fermentation space (11), and has the other side fixed to the upper surface of the wall (12) and performs reciprocating motion of contraction and extension to cause rotation of the injection pipe section (110) based on the hinge section (130).
  2. In paragraph 1, An organic material injection device for promoting anaerobic digestion in a fermentation tank, characterized by forming a curved section (110a) in a downward curved shape from one side of the injection pipe section (110) connected to one side of the cylinder (120) to the other side near the end, and a straight section (110b) from the other side of the curved section (110a) to the end of the injection pipe section (110).
  3. In paragraph 2, An organic material injection device for promoting anaerobic digestion in a fermentation tank, characterized in that the end of the injection pipe section (110) forms an inclined surface section (110b-1), and a plurality of injection holes (112) are formed on the outer surface around the end or on the outer surface corresponding to the length of the injection pipe section (110) so as to communicate with the interior of the injection pipe section (110).
  4. In paragraph 1, The above cylinder (120) has a cylinder shaft (122) that moves in a straight line from the cylinder head (121) while the other side of the cylinder head (121) is fixed to the wall (12) and is connected to the upper side of the injection pipe section (110). An organic material injection device for promoting anaerobic digestion in a fermentation tank, characterized in that a movable piece (140) is connected and fixed to the upper surface of the injection pipe section (110), and the end of a cylinder shaft (122) is connected to the movable piece (140) by a hinge structure.
  5. In paragraph 1, A nozzle member (200) is further included, comprising a nozzle body (210) connected to the end of the injection pipe section (110) and having a passage (211) formed through the interior to communicate with the interior of the injection pipe section (110), and one or more rear injection sections (220) having a vertical cross-section protruding in the shape of a right triangle on the outer surface around the end of the nozzle body (210). A spray path (221) inclined at a predetermined angle is formed through the interior of the rear injection section (220) so as to be in communication with the passageway, and An organic material injection device for promoting anaerobic digestion in a fermentation tank, characterized in that the inner diameter from the inner circumference of the passage (211) connected to the injection passage (221) to the inner circumference of one end of the nozzle body (210) forms a smaller inner diameter compared to the inner diameter from the inner circumference of the other end of the nozzle body (210) connected to the end of the injection pipe (110) to the inner circumference of the passage (211) adjacent to the injection passage (221).
  6. In paragraph 5, An auxiliary injection pipe (300) is further included to be connected between the nozzle member (200) and the injection pipe section (110), or to be connected between the cut ends after cutting one side of the injection pipe section (110). The above auxiliary injection tube (300) is composed of an outer part (310) having a plurality of nozzle holes (312) formed to be internally connected to the outer surface, and an inner part (320) that is inserted into the outer part (310) to form a double tube structure while forming a second passage (321) that is coaxial with the outer part (310) and open on both sides. An organic material injection device for promoting anaerobic digestion in a fermentation tank, characterized by forming a cylindrical first passage (311) between the inner surface of the outer portion (310) and the outer surface of the inner portion (320), wherein one end of the first passage (311) is sealed by a cylindrical sealing surface (313).

Description

Injection apparatus of organic material for anaerobic digestion promotion of fermenter The present invention relates to an organic material injection device for promoting anaerobic digestion in a fermentation tank, and more specifically, to an injection device that can improve the fermentation efficiency of organic waste by injecting organic material, microorganisms, or additives into a fermentation tank containing organic waste such as livestock manure or food waste. In particular, the invention relates to an organic material injection device for promoting anaerobic digestion in a fermentation tank that can improve sludge treatment efficiency while promoting biogas generation by forming a uniform distribution of organic material by directly injecting into the interior including the upper part of the organic waste and allowing it to flow down to the bottom. Recently, the amount of waste generated is increasing day by day due to industrial development and population growth. Since waste causes environmental pollution and often results in the disposal of valuable resources contained within it, efficiently processing and recovering it is considered important. Furthermore, waste can be classified into organic and inorganic waste based on the characteristics of its constituent materials. Organic waste can be defined as animal or plant waste derived from living organisms, with an organic waste content of 40% or more. The types and sources of waste included in this category of organic waste are diverse. Food waste, sludge from sewage and wastewater treatment plants, waste from seafood processing plants, waste from agricultural and livestock processing plants, residues from food and paper mills, slaughterhouse waste, and livestock manure are all considered organic waste. The increase in organic waste is emerging as the biggest cause of environmental and water pollution. In particular, livestock manure discharged from livestock farms is generally a solid-liquid substance produced during the metabolic processes of livestock, consisting of high-concentration organic matter with a BOD of approximately 20,000 to 30,000 ppm. Depending on the degree of management and utilization, such livestock manure can provide benefits and... As a substance that can be used for threads, livestock manure is defined as livestock wastewater under the Act on the Treatment of Sewage, Feces, and Livestock Wastewater. These organic wastes are difficult to treat due to their high moisture content and high concentrations of emitted pollutants, and are generally disposed of through methods such as landfilling, incineration, and fermentation. In addition, in facilities for producing biogas or compost from organic waste such as livestock manure or food waste, the fermentation treatment tank into which the organic waste is fed is treated by spraying or injecting moisture, air, organic matter, and additives through a nozzle-type supply pipe to promote the fermentation maturation of the organic waste. However, as conventional supply pipes are installed on the ceiling or floor of the fermentation treatment tank, organic matter remains only in the upper or lower layer of the fermented material, blocking injection into the interior of the fermented material. Furthermore, as time passes, the upper and lower layers of the fermented material gradually harden, causing the space to become sealed and preventing the smooth supply of organic matter. Consequently, the fermentation maturation of organic waste becomes uneven, and the quality deteriorates, leading to the problem of not being able to generate biogas. FIG. 1 is a structural diagram of a fermentation tank having an organic matter injection device for promoting anaerobic digestion of the fermentation tank according to an embodiment of the present invention. FIG. 2 is a front view of a fermentation tank having an organic matter injection device for promoting anaerobic digestion of the fermentation tank according to an embodiment of the present invention. FIG. 3 is a detailed view of an injection device installed on the wall of a fermentation tank in an organic matter injection device for promoting anaerobic digestion of a fermentation tank according to an embodiment of the present invention. FIG. 4 is a front perspective view (a) of the end of the injection pipe section, a rear perspective view (b) of the end of the injection pipe section, a front perspective view (c) of the injection pipe section with a spray hole formed therein, and a rear perspective view (d) of the injection pipe section with a spray hole formed therein, in an organic matter injection device for promoting anaerobic digestion of a fermentation tank according to an embodiment of the present invention. FIG. 5 is a perspective view (a) and a cross-sectional view (b) of an organic matter injection device for promoting anaerobic digestion of a fermentation tank according to an embodiment of the present invention, with a nozzle member mount