DE2452696A1 - UNDERGROUND COAL MUD END.RUNGSSUMPF - Google Patents

Description

I NAOHQER EIGHT

9487-74 / ΒΤ

Continental Oil Company,

Ponca City, Oklahoma 74601, Vex.St.ν.America

Coal sludge enrichment swamp located underground

It is extremely difficult to form a large sump in a pit that is being excavated using the pillar method. Since the tunnels are quite narrow, this one forms here described sump provides a unique means of enriching sludge in such a confined environment. With A conventional mining machine can excavate a trench in a shape suitable for forming a first trench drops in two directions. At the deepest part there will be a partition built and formed a 'pump room. Second and third trenches are then formed along a second tunnel, the already at a right angle to the first tunnel was trained. A partition is placed between the second and third trenches and the shallowest end of the first trench built for water storage. A water connection is made between the partitioned part and the pump room, where a pump is maintained to recirculate water. The mud pipes coming from different types of coal are emptied into the second and third tunnels. One located in the partition wall facing the water storage area Overflow allows the water to overflow its accumulation to flow into the water storage area. if Adding coal to the second and third trenches moves them

5098.4 3/05 55

down the bottom of the trenches to the lowest part of the first trench where the mud pump lifts the concentrated coal to the surface of the pit. The coal can be emptied into the trenches
until there is sufficient coal in the first trench to form a concentration sufficient for economical pumping.

U.S. Patent 3,269,777 shows one formed in a pit
shallow swamp for water enrichment. A storage tank is formed in the pit, which enriches the sludge completely separately from the water storage sump.

Further features and details of the invention emerge from the following description of an exemplary embodiment on the basis of FIG Drawing. It shows:

Fig. 1 is a plan view of a sump having the general configuration the various trenches and the arrangement of inlet ducts and a pump room;

FIG. 2 shows a cross section of the sump shown in FIG
along lines 2-2;

3 is an oblique view of the one shown in FIGS. 1 and 2
Swamp.

A first sump 11 is formed in a first mine tunnel 10. The sump 11 is made by digging a trench
produced any conventional equipment, but is likely to be produced by off-the-shelf, continuously operating building machine. The rock and rubble are challenged by a conveyor or cart. The sump or ditch 11 has vertical side walls 12, a shallow end 13 and a deep end 14. The bottom 15 (see FIG. 3) slopes progressively from the end 13 to the end 14. The angle of inclination

509843/0555

should be greater than the angle of repose in the preferred embodiment the coal sludge mixture discharged into the trench. The walls 12 to 14 and the bottom 15 can be reinforced with Concrete lined to prevent rubble and stone from sliding off the side walls.

A second tunnel 20 has a second sump or trench 21 and a third sump or trench 22 which is formed in this way is that it gradually falls into the trench 11. Everyone who Trenches 21 and 22 have side walls 23, a shallow end 24 and a bottom 25 (Fig. 3) which, as mentioned above, into the trench 11 falls off. The bottom 25 also has an angle which is greater than the angle of repose of the coal sludge mixture. These Trenches can be lined with reinforced concrete. In case of covering the sump for moving machines or personnel if desired over the sump, support beams 26 can be attached between the walls 23 and in line with the walls 12, Bars 27 can then be placed over the swamps 11, 21 and 22. Instead of the bars 27, a grating 28 could also be used will.

By placing a partition 31 in line with the wall 23, a water tank 30 is formed. An overflow 32 becomes attached at the desired water level by forming the partition wall 31 to a desired height so that the water can flow over the upper edge. Of course, pipes can work in the same way as overflows, but they are more clogging tend.

At least as deep as the maximum depth of the trench 11 is a pump room 35 is formed in which a water pump 36 and a mud pump 37 are maintained. A tube 38 runs through end 14 to the inlet of mud pump 37 while a second pipe 39 is connected to the mud exit system, which may be on the surface of the pit. The water-

50 98.4 37 0 555

• τ

pump 36 is connected to the water tank or chamber 30 by means of of a pipe 40 which passes through the partition 31 into the chamber 30 at one end and through the end 14 of the sump 11 in the inlet of the pump 36 extends at its other end. A pipe 42 is connected to a pipe 43 which in turn is connected to the water inlet for the sludge system is connected to each of the respective mined coal locations. Also from each of the dismantled Coal sites emptied a plurality of individual mud lines 45 into trench 21 and from mud lines into the trench 22. A make-up water supply is provided through a pipe to an outlet 56 which empties into the water tank 30.

To establish access to the pump chamber 35, a walkway 4 7 from the pump chamber 35 to the is by means of an opening 48 Surface of the stud 10 is formed. A connection to the pumping device is also provided through the roof 49 of the pumping station.

The operation is best described with reference to FIG. During normal operation of the apparatus shown here, sludge is passed through lines 45 and 46 to the trenches or sumps 21 and 22 are pumped. The sludge from the pipe falls in the direction of arrows 60 and 61 into the large trench or Sump 11. The product contained in the sludge then moves according to arrows 62 and 63 to the inlet pipe 38 of the sludge pump, where it is lifted by pump 37 over pipe 39 and out to the surface of the pit for a treatment plant or other treatment facility. Similarly, the one in the pipe falls 46 incoming mud in the direction of arrow 64 to the bottom 25 of the trench or sump 22 and along the bottom 15 of the large sump 11 in the direction of arrow 65 and, as described above, moves on with the material coming out of the tube 45. The water, which is also mixed with the coal to form the sludge, fills the swamps 11, 21 and 22. When the water passes the Fills swamps, it flows in the direction of arrow 70 to the water—

509843/0555

container 30. Depending on requirements, water is from the pipe 40 in the. Water pump 36 up pipes 42 and 43 to the various Pumped coal places where sludge degradation takes place. Since some water is constantly being pumped out through the mud line 39, the system will lose water if there is no make-up water is attached. It is therefore from a water source through the pipe 55 make-up water through the outlet 56 into the water tank 30 dropped.

The swamp for a pit was shown using the pillar method used. Only a single pair of side swamps was shown. The swamp or ditch 11 can obviously be extended and it can as needed Side swamps either for additional capacity Coal product or additional capacity for mud lines can be added.

Technical details regarding the construction method of the sump were not given, since the production of concrete sidewalls is well known in the art and requires only technical expertise.

Furthermore, the mutual wall stiffening was not shown and, if necessary, can be provided during the manufacture of the swamps will. Obviously, even a single one in the big one can Sump feeding sump can be provided if only a few coal locations are operated, the sump with a lower overall capacity can work effectively.

The preferred embodiment shows a pump room with a

a floor mounted water pump and / mud pump. Apparently Instead of a pump room, the water and sludge pumps can be arranged on the bottom of the pit and pipes can be connected to the Extend the bottom of the sump or can have a submersible pump at the Arranged at the bottom of the sump and pumped out the material will.

509843/0555

Claims (5)

. 6. Claims 1. Underground pit mud swamp for a variety of sludge pipes located in a pit, the pit having at least one first and one perpendicular to it having second tunnel, characterized by a trench formed in the first tunnel with first and second Ends with a floor sloping towards the second end and with substantially perpendicular side walls through in the second Pit tunnels formed second and third trenches, the bottoms of which slope into the first trench, each of the second and third trenches has vertical side walls, through a partition wall which is used to form a water storage chamber on the Interface of the side walls of the first trench with side walls of the second and third trenches is formed by an overflow formed over the upper edge of the partition, the drainage of excess water from the first, second and third trenches by having it in the water storage chamber flows through one between the water storage chamber and a water source for the sludge removal system connected water pump and through one connected through the bottom of the second end to the surface of the pit Sludge pump for removing enriched sludge from the sump, with the sludge inlet connected to the second and third trenches. 2. Sump according to claim 1, characterized in that the sides and the bottom made of concrete v / earth, and that the bottom drops at an angle greater than the angle of repose of the coal mixed with water. 3. Sump according to claim 1, characterized by a pump room which is arranged adjacent to the second end at a depth which is equal to the bottom of the sump at the second end, and by a passageway which is formed between the pump room and the first tunnel . 509843/0555 4. sump according to claim 3, characterized in that the pump chamber contains a water and a mud pump. 5. Underlay located pit sludge sump for a plurality of sludge lines located in a pit, with the pit has at least one first and one second cleat formed perpendicular to it, characterized by a trench formed in the first tunnel with first and second ends with a bottom sloping towards the second end, and with essentially vertical side walls, through second and third trenches formed in the second mine tunnel, whose bottoms drop into the first trench, with each of the second and third trenches has vertical side walls, through a partition wall that forms a water storage chamber at the intersection of the side walls of the first trench with the side walls of the first and second Trenches is formed by an overflow formed over the upper edge of the partition wall, which allows a pulling off of Excess water from the first sump and the third trenches is allowed by having it in the water storage chamber lets flow through one between the water storage chamber and a water source for the sludge removal system Water pump, and through one connected through the bottom of the second end to the surface of the pit Sludge pump for removing enriched sludge from the sump, the sludge inlet with the second and third Trenches communicating. 509 843 / 05SS,