KR20060114888A - The gas collector system is connected with a quick sinking of bioreactor a reclamation method of construction - Google Patents

Abstract

A vertical landfill gas collecting system which enables length of the perforated pipe to be adjusted by dividing a perforated pipe into plural division pipes and connecting the pipes to one another, prevents exposure of the collection pipe and a vertical well and prevents bending or damage of the pipes by naturally adjusting length of a collection pipe, and stably secures an energy source by enabling landfill gas to be collected stably is provided. As a collection system comprising a perforated pipe constructed in a vertical well(11) drilled in a landfill(10), a non-perforated pipe(110a) installed on an upper part of the perforated pipe, and a horizontal pipe(20) connected to the non-perforated pipe to transfer gas collected through the perforated pipe, a landfill gas collection system comprises: perforated pipes(110) which have irregular lengths and are spaced from one another in an equal distance; a connecting perforated pipe(120) which connects the perforated pipes according to depth of the vertical well and is constructed in the vertical well; a length adjusting part which is formed on at least one portion out of connecting portions of the perforated pipes and inked with subsidence of a landfill to descend the perforated pipes and the connecting perforated pipe, and of which an entire length is adjustable; and fixed plates(140) which are installed on an outer surface of the connecting perforated pipe or the perforated pipes and distanced from one another in an equal distance, and adjust lengths of the pipes by transmitting subsidence force to the pipes while maintaining perpendicularity of the pipes in the state that outer portions of the fixed plates are closely adhered to the vertical well.

Description

The gas collector system is connected with a quick sinking of Bioreactor a reclamation method of construction}

1 is a cross-sectional view showing a state in which the interlocking landfill gas vertical collecting device according to the present invention constructed;

2 is a cross-sectional view of a collecting tube according to the present invention;

3 is an enlarged cross-sectional view of main parts of a collecting tube according to the present invention;

Figure 4 is a perspective view showing an example of a trapezoidal fixed plate applied to the present invention,

5 is a perspective view showing an example of a flat plate fixing plate applied to the present invention,

Figure 6 is a sectional view showing another embodiment of the collecting tube according to the present invention.

* Explanation of symbols on the main parts of the drawings

10: landfill 11: vertical tablet

12 sealing layer 14 final cover layer

100: collecting tube 101: vertical top protection

110: merit pipe 120: consolidation pipe

130: length adjustment unit 140: trapezoidal fixed plate

150: plate type fixed plate

The present invention relates to an apparatus for collecting landfill gas in a landfill, and more particularly, the length of the tubular body is controlled in response to settlement of the landfill to prevent breakage of the tubular body, and to stably collect landfill gas. In addition, the present invention relates to a landfill gas vertical collector for preventing the tubular body from protruding more than necessary even after settlement occurs.

In general, landfill gas is produced by anaerobic decomposition of organic substances in wastes generated from landfills, including methane, carbon dioxide, VOC's, hydrogen sulfide and methylmerethane, and some of the gases cause odor and methane. While and carbon dioxide pollute the environment, high concentrations of methane can be reused as energy.

Therefore, in recent landfills, landfill gas collection devices have been constructed for suppressing the occurrence of odor, preventing fire, and using gas as an energy source.

Usually, such a collecting device is divided into a horizontal collecting device for piping the collecting pipe horizontally with the ground, and a vertical collecting device for sucking gas by installing the collecting pipe vertically on the ground, and the double vertical collecting device is approximately 600 to 1,200 in the landfill. Perforating the vertical well of mm, and installing the perforated pipe in the interior of the perforated vertical well, and filling the gravel therebetween to construct a non-perforated pipe at the upper end of the perforated pipe is configured to enable the transfer of gas.

By the way, such a conventional device has a problem that can not respond to the settlement of the landfill and the pipe can be bent or broken to cause a risk.

In other words, generally, the length of the perforated pipes produced and sold is limited, and when embedding the perforated pipes more than a certain depth, connect two or more perforated pipes by bolts or welding.

However, conventional landfills are settled as gas is discharged and decomposition of landfill waste proceeds, and the sinking force acts on the perforated pipes, causing the perforated pipes to bend, as well as a gap between the landfill and the vertical well and collecting landfill gas. There is a problem that the rate is lowered.

In addition, there is a problem that the vertical well is projected to the outside compared to the landfill surface, the site utilization is lowered, and the connection part of the transfer pipe for transferring the landfill gas to the solvent in the vertical well is broken.

Particularly, landfills with bioreactor methods that accelerate the landfill gas emissions by increasing the landfill gas emissions due to rapid decomposition of organic waste by re-injecting leachate, etc., are expected to proceed rapidly. The application of the vertical collection method of the method can be problematic.

The present invention has been made in view of the above-described conventional problems, and its object is to separate the perforated pipe into several divided pipes and connect each of them, so that the length of the landfill gas vertical collection can be adjusted to the sinking load at the connection site. To provide a device.

Another object of the present invention is to adjust the length of the collection pipe naturally to the settlement load, to prevent the exposure of the collection pipe and vertical well due to the settlement and to enable a stable gas collection, and to prevent the bending or breakage of the tubes To provide a gas vertical collector.

Another object of the present invention is to enable a stable collection of landfill gas, the vertical landfill gas collecting device to ensure a stable energy source in preparation for risks such as explosion, fire, rise of greenhouse effect, etc. To provide.

An object of the present invention is a collecting device having a perforated tube which is constructed in a vertical well perforated in a landfill, having a non-perforated tube provided at the top of the perforated tube and connected to the non-perforated tube to transfer a gas. Perforated tubes having equal or irregular lengths; A connecting hole for connecting the hole along the depth of the vertical pipe to be installed in the vertical well; A length adjusting unit provided in at least one of the connection portions of the hole holes to adjust the entire length of the hole hole in conjunction with the settlement of the landfill; Installed on the outer surface of the perforated tube and the connected perforated tube is to achieve a technical feature consisting of a fixed plate to maintain the vertical degree and to transmit the settling force to the perforated tube so that the length can be adjusted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a state in which the quick settled interlocking type landfill gas vertical collecting device according to the present invention is constructed, FIG. 2 is a side view of the collecting pipe according to the present invention, and FIG. 3 is a collecting pipe according to the present invention. The enlarged cross-sectional view of the main portion is shown.

In addition, Figure 4 is a perspective view showing an example of a trapezoidal fixed plate applied to the present invention, Figure 5 is a perspective view showing an example of a flat plate fixed plate applied to the present invention, Figure 6 is a collecting tube according to the present invention A cross-sectional view showing another embodiment of the.

Preferably, the landfill gas vertical collection device of the present invention is to be installed in a landfill using a bioreactor embedding method to be linked to rapid settlement.

Here, the bioreactor landfill method is a landfill method where the decomposition of organic waste is completed and there are no environmental hazards, so it can be used for other purposes, and the landfill is recognized as a huge bioreactor. By artificially controlling the water content of the biodegradable organic waste in the landfill waste to promote the decomposition of stabilization can be shortened to within 5 to 10 years.

Of course, the vertical collecting device of the present invention can be applied to the landfill to which other methods are applied in addition to the landfill to which the above-described method is applied.

In the drawings, the landfill gas collecting device according to the present invention is a vertical collecting device, and the collecting pipe 100 made of the perforated pipes 110 which are constructed in the vertical well 11 of the landfill 10 to which the bioreact method is applied, and The length adjusting part 130 is provided at the connection portion of the perforated pipes 110 to allow the length of the perforated pipe to be adjusted according to the settlement of the landfill, and the trapezoidal fixing plate 140 which maintains the verticality of the perforated pipe and transmits the settling force. Or it consists of a flat fixed plate 150.

The vertical well (11) has an inner diameter of about 400mm, and after the construction of the perforated tube is filled with gravel between them to fix the perforated tube, the gravel layer 13 also serves to transmit the sinking force to the perforated tube.

The perforated pipe 110 is composed of several divided perforated pipes 111 having a constant length or an irregular length, and according to the depth of the vertical well, an appropriate number is connected by the connecting perforated pipe 120 to be installed inside the vertical well.

The connecting hole 120 has an inner diameter that is larger than the outer diameter of the oil hole 110 and the upper and lower side divided oil hole 111 is inserted into the inner hole to connect them and allow the movement of gas. The adjusting unit 130 is provided.

The top of the perforated pipe 110 is connected to the non-perforated pipe 110a, which is to be transported by supplying gas to the horizontal pipe 20 connected thereto in the state protruded to the upper side of the vertical well, the upper part of the pipe The upper vertical protection portion 101 for protecting the connecting portion of the horizontal tube 20 is configured to cover the side.

In other words, the sealing layer 12 that blocks the inflow of outside air is installed at an upper right side of the vertical well 11 at an appropriate depth, and the non-hole tube 110a connected to the oil hole tube is exposed to the upper side of the sealing layer 12. In order to allow the horizontal pipe 200 to be piped in order to protect the connection site, the vertical well upper protection part 101 is installed to the upper side of the hollow pipe, and then the final cover layer 14 is covered around the vertical well upper protection part. It is a structure which embeds the said horizontal pipe.

Of course, this form is just one example, and may be constructed with the other forms and structures described above.

On the other hand, the end of the horizontal tube 20 is connected to the gas processing unit 210 to collect and resource the gas, the sealing layer 12 is made of bentonite inverted conical, that is, the buried surface is wider than the vertical well The outside air can be blocked more effectively, and the stability of the landfill can be maintained as much as possible.

The length adjusting part 130 is composed of a locking step and a locking step to allow the locking step to be sequentially hooked.

The locking jaw 131 is formed on each of the upper and lower sides of the perforated pipe 110, each of the locking jaw is inclined surface 131a inclined in one direction again and the locking surface 131b cut horizontally at the end of the inclined surface In a structure arranged in a continuous manner, the inclined surfaces of the locking step formed on each of the upper and lower sides of the perforated tube is inclined in the opposite direction.

In other words, the inclined surface 131a of the locking projection 131 formed on the lower side of the hole tube 110 is a structure in which the locking surface 131b is repeated in a state in which the lower end is inclined inward with respect to the upper end. The locking jaw 132 located at the upper side of the structure has a structure in which the locking surface 132b is positioned at an end thereof while the lower end of the inclined surface 132a is inclined outward.

The locking protrusions 133 and 134 protrude to the inner upper and lower sides of the connection hole tube 120 so that the upper and lower side locking jaws of the hole hole inserted in the connection hole tube can be caught, and the locking protrusions 133 and 134. May be installed integrally or separately from the connecting perforated pipe.

For example, the locking protrusions may be mounted in a bolt shape, or may be integrally formed with the connecting hole.

The structure of the length adjustment unit 130 is to allow the upper and lower side locking projections to be caught on each of the engaging surfaces when lifting the oil pipes for the construction by the crane, and if the sinking force occurs after construction, the inclined surface rides over the obstacles It is a configuration to adjust the length in sequence.

The fixing plate 140 is bent in a trapezoidal shape as shown in FIG. 4 and installed in the radial direction on the outer surface of the connecting oil pipe 120. This protruding portion is in close contact with the inside of the vertical well 11 so that the vertical view of the oil pipe is shown. Keep it.

Wherein the fixing plate 140 is configured in a trapezoidal shape is that when the force acts on the connecting oil pipe 120 in the lateral direction by sinking or other external force that the fixing plate 140 is dug into the rubbish layer of the outer wall of the vertical well (11). It is to minimize, and to install the wide side parallel to the connecting pipes to better transmit the settlement force of the landfill transferred to the gravel layer to the connecting pipes.

In addition, the fixing plate 140 is installed on the outer surface of the perforated tube and the connected perforated tube by bolts or riveting or fusion, at least three on the same line, preferably four are installed at intervals of 90 ° and arranged at appropriate intervals from the top Is the configuration.

Here, the fixing plate may not be installed in the perforated pipe 110 in view of the conditions and settlement rate of the landfill, which may be inserted into the interior of the connecting pipe when the maximum settlement rate of the landfill is expected to be 40-50%. This is to prevent the trapezoidal shape of the fixed plate does not act as a obstacle of the length adjustment.

Therefore, the perforated pipe 110 is installed so as to intersect the plate-shaped fixing plate 150 shown in FIG. 5 from the outside of the perforated pipe to maintain the vertical degree of the perforated pipe, and the installation position is preferably an intermediate point of the perforated pipe 110. By installing at one or more places, it is possible to adjust the length to cope with the maximum settlement.

On the other hand, the length of the connecting hole 120 is selectively determined according to the depth of the vertical well 11 or the length of the split hole (111), preferably to the same or slightly smaller than the split hole, It is a configuration that allows the length to be adjusted regardless of the amount of landfill settlement.

The collection device of the present invention having such a configuration is installed in the landfill to collect the gas, and when the settlement of the landfill occurs, the length of the perforated pipe is adjusted so as not to be exposed to the outside.

In order to construct the collecting device according to the present invention, first, a vertical well is drilled at a suitable position of the landfill and then the flow pipes 111 are connected according to the depth thereof.

Each of the perforated pipes 111 are inserted into and connected to the upper and lower sides of the connecting perforated pipe 120, and after the insertion of the perforated pipe 111 through the upper and lower locking protrusions 133, 134 to the outside of the connecting perforated pipe 120, each perforated pipe ( It is to be caught on the engaging surface of the upper and lower side locking jaw (131, 132) provided in the 110.

Finally, after connecting the non-perforated pipe 110a to the uppermost perforated pipe 110, lift the perforated pipe by a crane and insert it into a vertical well, and then fill the gravel between them to fix the perforated pipe 110, and around the non-perforated pipe 110a. Filled with a sealing layer 12 to prevent outside air from flowing into the vertical well, and again connecting the air pipe 110a and the horizontal pipe 200, and then cover the vertical well upper protection portion 101 and the final cover layer 14 To complete the construction. Of course, the fixing plate (140, 150) is installed in the perforated pipe before fitting in the vertical well.

After the construction of the collecting device, landfill site is settled for a considerable period of time as the landfill waste is decomposed. At this time, the pressure applied from the upper part to the lower part acts on the perforated pipe 110 and the gravel layer 13 is fixed plates 140 and 150. Will be pressed.

This pressure acts on the locking projections 131 and 132 formed in the perforated pipes, respectively, so that the inclined surface descends while sequentially moving over the engaging protrusions, thereby reducing the total length of the perforated pipe by the amount of settlement.

6 is a view showing another embodiment of the present invention, which is another embodiment of the protrusion.

The locking protrusion 130a is to prevent the locking protrusion from being damaged by eccentric pressure acting on the perforated pipe 110 during subsidence by further improving the elastic force. The hooking portion 130a is bent in a mountain shape to form the locking portion 130b. Is fixed to the inner side of the connecting hole (120), the other end is composed of a free end is moved to the groove portion (120a) side formed on the inner surface of the connecting hole, the locking portion is pressed by the inclined surface (131a, 132a) during the movement of the hole This is the configuration that allows it.

As described above, the present invention is configured by separating the perforated pipes constructed in the vertical well into several divided pipes and connecting each one according to the depth of the vertical well, so that the length of the perforated pipe can be adjusted in conjunction with the settlement force at the connection site. The length adjusting part is provided to prevent the exposure of the tubes due to settlement and to prevent the bending or breakage of the tubes.

In addition, the present invention is to prevent the breakage of the pipes to enable a stable gas collection, to prepare for the risks such as explosion, fire, greenhouse gas, etc. due to the discharge of the landfill gas and to secure a stable energy source Have.

Claims (7)

A collection device having a perforated pipe constructed in a vertical well drilled in a landfill, having a non-perforated pipe on the upper side of the perforated pipe, and having a horizontal pipe connected to the non-perforated pipe to transfer gas collected through the perforated pipe, Perforated tubes having equal or irregular lengths; A connecting hole for connecting the hole along the depth of the vertical pipe to be installed in the vertical well; A length adjusting unit provided in at least one of the connection portions of the hole holes to link the settlement of the landfill and the hole hole and the connection hole pipe to be lowered to adjust the overall length; It is installed at equal intervals on the outer surface of the connecting hole or hole tube and the outer plate is in close contact with the vertical well to maintain the verticality of the tube and to transmit the settling force to the tube so that the length can be adjusted; Landfill gas vertical collecting device, characterized in that. According to claim 1, The perforated pipe is composed of a predetermined length or irregular length so as to be selectively connected by the connecting perforated pipe according to the depth of the vertical well, the landfill gas vertical, characterized in that the length adjusting portion is provided at each connection portion Collection device. According to claim 1 or claim 2, wherein the length adjustment part of the perforated pipe descending in conjunction with the settlement of the landfill pipe in the inside of the connecting jaw pipe is fitted in a multi-layer on each of the upper and lower sides of each of the perforated pipe and the perforated pipe is fitted The landfill gas vertical collecting device, characterized in that the locking projections are arranged so that the length is sequentially adjusted. The method of claim 3, wherein the locking step is to be formed in the inclined surface and the horizontal locking surface inclined in one direction continuously, the inclined surface of the locking jaw formed on the upper, lower sides of the perforated pipe is formed in the opposite direction, The locking projection is a landfill gas resin collecting device, characterized in that protruding to the inner side of the connection hole pipe so as to be caught on the locking surface. It is a collecting device having a perforated pipe which is constructed in the vertical well of the landfill to which the bioreactor embedding method is applied, and has a non-perforated pipe provided on the upper side of the perforated pipe, and is equipped with a horizontal pipe which is connected to the non-perforated pipe to transfer gas. Perforated tubes having equal or irregular lengths; A connecting hole for connecting the hole along the depth of the vertical pipe to be installed in the vertical well; A length adjusting unit provided in at least one of the connection portions of the hole holes to adjust the entire length of the hole hole in conjunction with the settlement of the landfill; A trapezoidal fixed plate installed on an outer surface of the connecting hole for maintaining a vertical degree in close contact with a vertical well and transmitting a settlement force to the connecting hole for allowing the length to be adjusted; It is installed in the central portion of the perforated pipe through the cross-hole, installed to maintain the vertical degree of the perforated pipe, to transmit the settling force to the perforated pipe, and to connect the perforated pipe and the perforated pipe as much as possible to control the length of the plate-shaped fixed plate; A vertical settling device for fast sinking linked landfill gas, which is applicable to a bioreactor landfill method. 7. The method of claim 6, wherein the fixed plate of the quadrilateral shape is bent in a trapezoidal shape of a flat plate having a suitable width to be installed on the outer surface of the connecting perforated tube, at least three or more on the same line and at the same distance from the top To install at least two, The plate-type fixed plate is installed in the perforated pipe is a vertical landfill gas collection device, characterized in that the two plates having a suitable width is installed to cross through the perforated pipe on the center of the perforated pipe. According to claim 1 or 5, wherein the length adjusting portion is installed on the inner side of the connecting hole tube and the locking projection protruding from the center portion, and the upper and lower side of the hole tube is to be composed of a multi-layer locking jaw, respectively, One end of the locking projection is fixed to the inner surface of the connecting hole, the other end is composed of a free end is pressed by the locking jaw when the lower of the hole is lowered and moved to the groove side formed on the inner surface of the connecting hole so that the hole is lowered Landfill gas vertical collecting device, characterized in that to be restored to maintain the jam again.

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