AU2021101093A4 - Hydraulic Cutting Drill Hole Cinder Conveying and Separating Device - Google Patents
Hydraulic Cutting Drill Hole Cinder Conveying and Separating Device Download PDFInfo
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- AU2021101093A4 AU2021101093A4 AU2021101093A AU2021101093A AU2021101093A4 AU 2021101093 A4 AU2021101093 A4 AU 2021101093A4 AU 2021101093 A AU2021101093 A AU 2021101093A AU 2021101093 A AU2021101093 A AU 2021101093A AU 2021101093 A4 AU2021101093 A4 AU 2021101093A4
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- Prior art keywords
- cinder
- drill hole
- collecting box
- drill
- cinder collecting
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
The present invention belongs to the field of gas extraction drill hole
cinder cleaning of coal mines, and relates to a hydraulic cutting drill hole
cinder conveying and separating device used for separating cinders and gas
in a drill hole during processes of drilling with a drill rod and cutting,
comprising a drill hole cinder collecting device, a cinder collecting box, a
cinder conveying pump and a cinder separator which are connected in
sequence through slurry pipes and an automatic control system used for
controlling start-stop of the cinder conveying pump and the cinder
separator; and the drill hole cinder collecting device is sleeved on the end
of a drill hole in the outer side of a drill rod, the drill hole cinder collecting
device, the cinder collecting box and the cinder conveying pump are
connected to a main extraction pipe through gas extraction pipes, and a
mixing impeller is arranged in the cinder collecting box. The device can
realize automatic start-stop, is simple to operate, and can effectively reduce
the labor input cost of cinder cleaning work and the working strength of
on-site staff.
Drawing
-- Cmder Water Mixture4 Coal Seam Gasl
31-7 40
-- 30
44 -
FIG. 1<-
Description
Drawing
-- Cmder Water Mixture4 Coal Seam Gasl
31-7 40
-- 30
44 -
FIG. 1<-
Description
Hydraulic Cutting Drill Hole Cinder Conveying and Separating Device
Field of invention
The present invention belongs to the field of gas extraction drill hole
cinder cleaning of coal mines, and relates to a hydraulic cutting drill hole
cinder conveying and separating device.
Background art of the invention
High gas outburst mines account for a large proportion in coal mines
of China, and gas extraction drilling in coal seams is a main way of gas
control. At present, the hydraulic drilling method is widely used for gas
extraction drilling in most of coal mines. With the continuous development
of gas treatment technologies and equipment of coal mines, the hydraulic
pressure relief and permeability improvement measures have become the
main means of coal mine disaster prevention and control. The ultra-high
pressure hydraulic cutting technology has the advantages of strong coal
breaking ability, controllable cutting effect and significant drilling pressure
relief effect, and has been successfully promoted and applied in various
mining areas. With the ultra-high pressure hydraulic cutting technology,
the drilling single-tool cinder discharge rate is 0.5-1 t, the cinder particle
size range is 0.5-25 mm, and the concentration of discharged cinder slurry
Description
is 10%-60%. Drilling with ultra-high pressure hydraulic cutting results in
a high drill hole cinder discharge rate during construction, which easily
causes cinder siltation at drilling sites. Due to the space limitation of
underground construction sites of coal mines, the on-site cinder cleaning
work has become the main factor restricting the progress of drilling cutting.
Meanwhile, in most of coal mines, underground safe and standardized
production is carried out, and on-duty personnel are required to clean up
cinders to ensure the cleanliness of underground construction sites.
Therefore, it is urgent to develop a cinder conveying and separating
device to quickly solve the problems of cleaning and transportation of
cinders discharged from ultra-high pressure hydraulic cutting drilling, so
as to ensure timely cleaning and recovery of cinders discharged during
ultra-high pressure hydraulic cutting drilling, reduce the working strength
of site operation staff and increase the efficiency of site operation.
Disclosure of the invention
In view of this, aiming at the problems of high discharge rate and
difficult cleaning of cinders from ultra-high pressure hydraulic cutting
drilling in coal mines, the purpose of the present invention is to provide a
hydraulic cutting drill hole cinder conveying and separating device which
realizes long-distance conveying and solid-liquid separation of cinders
discharged from ultra-high pressure hydraulic cutting drilling so as to
reduce the working strength of site operation staff and the human input and
Description
increase the efficiency of site operation.
To achieve the above purpose, the present invention provides the
following technical solution:
A hydraulic cutting drill hole cinder conveying and separating device
used for separating cinders and gas in a drill hole during the process of
drilling with a drill rod comprises a drill hole cinder collecting device, a
cinder collecting box, a cinder conveying pump and a cinder separator
which are connected in sequence through slurry pipes and an automatic
control system used for controlling start-stop of the cinder conveying pump
and the cinder separator; and the drill hole cinder collecting device is
sleeved on the end of the orifice of a drill hole in the outer side of a drill
rod, the drill hole cinder collecting device, the cinder collecting box and
the cinder conveying pump are connected to a main extraction pipe through
gas extraction pipes, and a mixing impeller is arranged in the cinder
collecting box.
Optionally, the drill hole cinder collecting device comprises a drill
hole cinder collecting hood which is provided with a first gas extraction
port and a first cinder discharge port; the first gas extraction port is
connected to the main extraction pipe through a first gas extraction pipe;
and the first cinder discharge port is connected to the cinder collecting box
through a first slurry hose.
Optionally, one end of the drill hole cinder collecting hood, which is
used for fixing the end of the drill hole, is a drilling joint, and the outer side
of the drilling joint is provided with an orifice retaining ring; and the
diameter di of the drilling joint is larger than the diameter D of a cutting
drill bit arranged on the end of the drill rod, and the orifice retaining ring
and the drilling joint are fixed by means of inserting.
Optionally, the drill hole cinder collecting hood is a conical cylinder,
of which the section diameter decreases gradually along a direction away
Description
from the drill hole; one side of the drill hole cinder collecting hood away from the drilling joint is fixed on the drill hole cinder collecting hood by a clamp through a circular rubber supporting cushion; and the diameter of the drilling joint is di, the diameter of the first cinder discharge port is d2
, the diameter of the first gas extraction port is d3 , the outer diameter of the circular rubber supporting cushion is d 4 , the inner diameter of the circular rubber supporting cushion is d 5, the diameter of the drill rod is D 2, and d2>d 3=d 4>d5 >D 2 .
Optionally, the cinder collecting box comprises a negative pressure cinder collecting box which is provided with a cinder collecting box access port, a second gas extraction port and a cinder collecting box discharge port; the negative pressure cinder collecting box is connected to the drill hole cinder collecting device through the cinder collecting box access port, and the second gas extraction port is connected to the main extraction pipe through a second gas extraction pipe; and the cinder collecting box discharge port is connected to the cinder conveying pump through a second slurry hose. Optionally, the negative pressure cinder collecting box comprise a first cinder collecting box and a second cinder collecting box which are connected in series, the first cinder collecting box is communicated to the second cinder collecting box through a cinder discharge baffle, and the cinder discharge baffle is hinged to the first cinder collecting box. Optionally, a mixing impeller is respectively arranged in the first cinder collecting box and the second cinder collecting box. Optionally, the cinder conveying pump comprises a slurry pump, the inlet of the slurry pump is communicated with the cinder collecting box, and the outlet of the slurry pump is connected to the cinder separator through a third slurry hose. Optionally, the cinder separator is provided with a cinder separator
Description
access port, a third gas extraction port, a second cinder discharge port and a water drain port, and a spiral separating mechanism is arranged in the cinder separator; and the cinder separator access port is connected to the cinder conveying pump, and the third gas extraction port is connected to the main extraction pipe through a third gas extraction pipe. Optionally, the automatic control system is connected to a water flow sensor arranged between the cinder collecting box and the cinder conveying pump through a sensor signal line,to the slurry pump through a slurry pump start cable,to the cinder separator through a cinder separator cable, and to the mixing impellers through mixing impeller cables; and the automatic control system is also provided with an explosion-proof automatic control switch. Optionally, the hydraulic cutting drill hole cinder conveying and separating device also comprises a drilling device which comprises a drilling rig, and the drilling rig is connected to an ultra-high pressure clean water pump through an ultra-high pressure hose; and the drilling rig is provided with a drill rod, and the end of the drill rod is provided with a cutting drill bit used for cutting a slot. The present invention has the following beneficial effects: The present invention provides an ultra-high pressure hydraulic cutting drill hole cinder conveying device which is mainly comprised of a drill hole cinder collecting device, a cinder collecting box, a cinder conveying pump, a cinder separator and an automatic control system. The drill hole cinder collecting device is mainly used for collecting cinders at the orifice of a drill hole to prevent cinders from leaking out. In addition, the drill hole cinder collecting device also can effectively prevent the gas spraying phenomenon during cutting to avoid gas overrun accidents. The cinder collecting box is used for temporarily storing cinders discharged from the drill hole, the cinder conveying pump realizes quick conveyance
Description
of coal-water mixture, the cinder separator separates coal and water and discharges sewage water into roadway drainage ditches, the separated cinders are conveyed centrally to coal bins, and the automatic control system uses the water flow sensor for monitoring to realize the automatic start-stop of the complete device. In addition, the drill hole cinder collecting device, the cinder collecting box and the cinder separator are connected to the main extraction pipe, which effectively extracts gas generated during cutting drilling, preventing gas from gushing abnormally. The ultra-high pressure hydraulic cutting drill hole cinder conveying device provided by the present invention is simple in operation and can realize long-distance conveyance of cinder slurry and rapid separation of coal-water mixture, effectively prevent cinders discharged during cutting from silting at construction sites and improve the progress of site operation and the cleanness of roadways. Connecting the main extraction pipe with the device can prevent coal seam gas from spraying and abnormally gushing during cutting. Meanwhile, the device can realize automatic start stop and reduce the human input and the wording strength of staff, and thus has high on-site promotion values. Other advantages, objectives and features of the present invention will be illustrated in the following description to some extent, and will be apparent to those skilled in the art based on the following investigation and research to some extent, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description.
Description of the drawings
To enable the purpose, the technical solution and the advantages of
Description
the present invention to be more clear, the present invention will be
preferably described in detail below in combination with the drawings,
wherein:
Fig. 1 is an overall structural schematic diagram of the present
invention.
Detailed description of the invention
Embodiments of the present invention are described below through
specific embodiments. Those skilled in the art can understand other
advantages and effects of the present invention easily through the
disclosure of the description. The present invention can also be
implemented or applied through additional different specific embodiments.
All details in the description can be modified or changed based on different
perspectives and applications without departing from the spirit of the
present invention. It should be noted that the figures provided in the
following embodiments only exemplarily explain the basic conception of
the present invention, and if there is no conflict, the following
embodiments and the features in the embodiments can be mutually
combined.
Wherein the drawings are only used for exemplary description, are
only schematic diagrams rather than physical diagrams, and shall not be
understood as a limitation to the present invention. In order to better
Description
illustrate the embodiments of the present invention, some components in
the drawings may be omitted, scaled up or scaled down, and do not reflect
actual product sizes. It should be understandable for those skilled in the art
that some well-known structures and description thereof in the drawings
may be omitted.
Same or similar reference signs in the drawings of the embodiments
of the present invention refer to same or similar components. It should be
understood in the description of the present invention that terms such as
"upper", "lower", "left", "right", "front" and "back" indicate direction or
position relationships shown based on the drawings, and are only intended
to facilitate the description of the present invention and the simplification
of the description rather than to indicate or imply that the indicated device
or element must have a specific direction or constructed and operated in a
specific direction, and therefore, the terms describing position relationships
in the drawings are only used for exemplary description and shall not be
understood as a limitation to the present invention; for those ordinary
skilled in the art, the meanings of the above terms may be understood
according to specific conditions.
See Fig. 1. Reference signs in the figure respectively indicate: drill
hole cinder collecting device I, cinder collecting box II, cinder conveying
pump III, cinder separator IV, automatic control system V, coal seam roof
1, coal seam 2, coal seam floor 3, drill hole 4, slot 5, cutting drill bit 6,
Description
drilling rig 7, drill rod 8, ultra-high pressure hose 9, ultra-high pressure
clean water pump 10, drill hole port 11, orifice retaining ring 12, drill hole
cinder collecting hood 13, first gas extraction port 14, cinder discharge port
, clamp 16, circular rubber supporting cushion 17, setscrew 18, first gas
extraction pipe 19, second gas extraction pipe 20, third gas extraction pipe
21, main extraction pipe 22, first slurry hose 23, second slurry hose 24,
third slurry hose 25, negative pressure cinder collecting box 26, cinder
collecting box access port 27, second gas extraction port 28, cinder
discharge baffle 29, second cinder collecting box 30, mixing impeller 31,
cinder collecting box discharge port 32, slurry pump 33, inlet 34 of slurry
pump, outlet 35 of slurry pump, water flow sensor 36, sensor signal line
37, slurry pump start cable 38, cinder separator cable 39, mixing impeller
cable 40, explosion-proof automatic control switch 41, cinder separator
access port 42, third gas extraction port 43, spiral separating mechanism
44, water drain port 45 and cinder discharge port 46.
The present invention relates to a hydraulic cutting drill hole 4 cinder
conveying and separating device used for separating cinders and gas in the
drill hole 4 during the processes of drilling with a drill rod 8 and cutting
with a cutting drill bit 6 comprises a drill hole cinder collecting device I, a
cinder collecting box II, a cinder conveying pump III and a cinder separator
IV which are connected in sequence through slurry pipes and an automatic
control system V used for controlling start-stop of the cinder conveying
Description
pump III and the cinder separator IV; and the drill hole cinder collecting
device I is sleeved on the end of the drill hole 4 in the outer side of the drill
rod 8, the drill hole cinder collecting device I, the cinder collecting box II
and the cinder conveying pump III are connected to a main extraction pipe
22 through gas extraction pipes, and a mixing impeller 31 is arranged in
the cinder collecting box II. The hydraulic cutting drill hole cinder
conveying and separating device also comprises a drilling device which
comprises a drilling rig 7, and the drilling rig 7 is connected to an ultra
high pressure clean water pump 10 through an ultra-high pressure hose 9;
and the drilling rig 7 is provided with the drill rod 8, and the end of the drill
rod 8 is provided with the cutting drill bit 6 used for cutting a slot 5.
The drill hole cinder collecting device I comprises a drill hole cinder
collecting hood 13, one end of the drill hole cinder collecting hood 13 is
fixed to the end of the drill hole 4, and the other end is fixedly arranged on
the drill rod 8; the drill hole cinder collecting hood 13 is provided with a
first gas extraction port 14 and a first cinder discharge port 15; the first gas
extraction port 14 is connected to the main extraction pipe 22 through a
first gas extraction pipe 19; and the first cinder discharge port 15 is
connected to the cinder collecting box II through a first slurry hose 23. One
end of the drill hole cinder collecting hood 13, which is used for fixing the
end of the drill hole 4, is a drilling joint 11, and the outer side of the drilling
joint 11 is provided with an orifice retaining ring 12; and the diameter di
Description
of the drilling joint 11 is larger than the diameter D of the cutting drill bit
6 arranged on the end of the drill rod 8, and the orifice retaining ring 12
and the drilling joint 11 are fixed by means of inserting.
The drill hole cinder collecting hood 13 is a conical cylinder, of which
the section diameter decreases gradually along a direction away from the
drill hole 4; on one side of the drill hole cinder collecting hood 13 away
from the drilling joint 11, a circular rubber supporting cushion 17 is fixed
on the drill hole cinder collecting hood 13 by a clamp 16; the diameter of
the drilling joint 11 is di, the diameter of the first cinder discharge port 15
is d 2 , the diameter of the first gas extraction port 14 is d 3 , the outer diameter
of the circular rubber supporting cushion 17 is d 4 , the inner diameter of the
circular rubber supporting cushion 17 is d 5, the diameter of the drill rod 8
is D 2 , and d2>d3=d 4 >d>D 2 .
The cinder collecting box II comprises a negative pressure cinder
collecting box 26 which is provided with a cinder collecting box access
port 27, a second gas extraction port 28 and a cinder collecting box
discharge port 32; the negative pressure cinder collecting box 26 is
connected to the drill hole cinder collecting device I through the cinder
collecting box access port 27, and the second gas extraction port 28 is
connected to the main extraction pipe 22 through a second gas extraction
pipe 20; and the cinder collecting box discharge port 32 is connected to the
cinder conveying pump III through a second slurry hose 24. The negative
Description
pressure cinder collecting box 26 comprise a first cinder collecting box and
a second cinder collecting box 30 which are connected in series, the first
cinder collecting box is communicated to the second cinder collecting box
through a cinder discharge baffle 29, and the cinder discharge baffle 29
is hinged to the first cinder collecting box. A mixing impeller 31 is
respectively arranged in the first cinder collecting box and the second
cinder collecting box 30.
The cinder conveying pump III comprises a slurry pump 33, the inlet
34 of the slurry pump is communicated with the cinder collecting box II
through the second slurry hose, and the outlet 35 of the slurry pump is
connected to the cinder separator IV through a third slurry hose 25. The
cinder separator IV is provided with a cinder separator access port 42, a
third gas extraction port 43, a second cinder discharge port 46 and a water
drain port 45, and a spiral separating mechanism 44 is arranged in the
cinder separator IV; and the cinder separator access port 42 is connected to
the cinder conveying pump III, and the third gas extraction port 43 is
connected to the main extraction pipe 22 through a third gas extraction pipe
21.
The automatic control system V is connected to a water flow sensor
36 arranged between the cinder collecting box II and the cinder conveying
pump III through a sensor signal line 37, to the slurry pump 33 through a
slurry pump 33 start cable, to the cinder separator IV through a cinder
Description
separator IV cable, and to the mixing impellers 31 through mixing impeller
31 cables; and the automatic control system V is also provided with an
explosion-proof automatic control switch 41.
As shown in Fig. 1, the steps for coal and water separation using the
ultra-high pressure hydraulic cutting drilling of the present invention are as
follows:
S1: according to coal seam occurrence conditions, determining the
layer relationship among the coal seam roof 1, the coal seam 2 and the coal
seam floor 3, and designing construction parameters of the drill hole 4 and
the cutting slot 5. The friction between the drill rod 8 and the wall of the
drill hole 4 during drilling causes the actual diameter of the drill hole 4 to
be larger than the diameter D of the cutting drill bit 6. Based on the on-site
construction experience, the expansion coefficient of the drill hole is 1.1
1.5, i.e., the pipe diameter of the drill hole port 11 is 1.5D>d121.2D; and in
the embodiment, the diameter D 1 of the cutting drill bit 6 is 113 mm, the
diameter D 2 of the drill rod 7 is 73 mm, the hole depth is 80 m, the slot
spacing is 2 m, and the axial length of the drill hole port 11 is>500 mm;
The optional diameter di of the drill hole port 11 is 125 mm, the
diameter d 2 of the cinder discharge port is 125 mm, the diameter d 3 of the
first gas extraction port is 100 mm, the outer diameter d 4 of the circular
rubber supporting cushion 17 is 100 mm, and the inner diameter d5 of the
circular rubber supporting cushion 17 is 75 mm; and the drill hole cinder
Description
collecting hood 13, the orifice retaining ring 12 and the drill hole port 11
are connected in sequence, and the circular rubber supporting cushion 17
is installed and fixed on the drill hole cinder collecting hood 13 by a clamp
16;
S2: before drilling the drill hole 4 in the coal seam 2, connecting the
drilling rig 7, the drill rod 8, the ultra-high pressure hose 9 and the ultra
high pressure clean water pump 10 in sequence, and sleeving the drill hole
cinder collecting device I on the drill rod 8. Then installing the cutting drill
bit 6 on the drill rod 8 for drilling;
S3: after drilling the drill hole 4 for about 3 m, stopping drilling,
inserting the drill hole port 11 of the drill hole cinder collecting device I
into the drill hole 4, and fixing the orifice retaining ring 12 on the coal wall
with a setscrew 18;
S4: installing the cinder collecting box II, wherein the negative
pressure cinder collecting box 26 has a size of 1 m (length) x 0.8 m (width)
x 0.8 m (height), and the second cinder collecting box 30 has a size of 1.5
m (length) x 0.8 m (width) x 0.8 m (height);
Further, the negative pressure cinder collecting box 26 is provided
with the cinder collecting box access port 27, the second gas extraction port
28, the cinder discharge baffle 29 and a mixing impeller 31, the diameter
of the cinder collecting box access port 27 is 100 mm, the diameter of the
second gas extraction port 28 is 50 mm, the cinder discharge baffle 29 is
Description
hinged on the negative pressure cinder collecting box 26, and the mixing
impeller 31 is installed in the box body of the negative pressure cinder
collecting box 26; and when coal-water mixture reaches 2/3 of the negative
pressure cinder collecting box 26, the cinder discharge baffle 29
automatically opens. After all the coal-water mixture flows into the second
cinder collecting box 30, the cinder discharge baffle 29 automatically
closes;
Further, the second cinder collecting box 30 is an open box body
which is provided with two mixing impellers 31 and the cinder collecting
box discharge port 32, and the diameter of the cinder collecting box
discharge port 32 is 100 mm;
S5: selecting the cinder conveying pump III, which is a horizontal
centrifugal slurry pump in the embodiment, and the slurry pump has a
power of 10 KW and a treatment rate of 20-25 m3 /h and treats cinders
within a particle size range of 0.5-50 mm;
S6: installing the cinder separator IV which has a power of 15 KW
and a treatment rate of 25-30 m3 /h and is applicable to cinder slurry with a
concentration of 10%-60%; the diameter of the cinder separator access port
42 is 100 mm, and the diameter of the third gas extraction port 43 is 50
mm; and the spiral separating mechanism 44 is comprised of a screen and
a spiral packing auger and driven by a motor and a stepless gearbox, and
the gear ratio of the stepless gearbox is 1:2.5;
Description
S7: connecting the first gas extraction port 14, the second gas
extraction port 28 and the third gas extraction port 43 to the main extraction
pipe 22 by the first gas extraction pipe 19, the second gas extraction pipe
and the third gas extraction pipe 21, wherein the negative pressure of
the main extraction pipe 22 is 16 KPa;
Further, the first gas extraction pipe 19, the second gas extraction pipe
and the third gas extraction pipe 21 are flame retardant anti-static steel
wire hoses with a diameter of 50 mm, and the diameters of the first gas
extraction port 14, the second gas extraction port 28 and the third gas
extraction port 43 are respectively 50 mm;
S8: the first slurry hose 23, the second slurry hose 24 and the third
slurry hose 25 are spiral steel wire hoses with a diameter of 100 mm;
respectively connecting the drill hole cinder collecting device I, the cinder
collecting box II, the cinder conveying pump III and the cinder separator
Further, the length of the first slurry hose 23 is <10 m, and the lengths
of the second slurry hose 24 and the third slurry hose 25 are respectively
<50 m;
S9: installing the automatic control system V which is comprised of
the water flow sensor 36, the sensor signal line 37, the slurry pump start
cable 38, the cinder separator cable 39, the mixing impeller cables 40 and
the explosion-proof automatic control switch 41; and connecting the
Description
explosion-proof automatic control switch 41 to a mineral power, wherein
the explosion-proof automatic control switch 41 has a voltage of 36 V and
a current of 1.5 A, and the response time after an electrical signal from the
water flow sensor 36 is received is <0.5 s. The water flow sensor 36 has
the minimum start flow of >20 L/min, the maximum passing flow of<150
L/min, the rated operating pressure of <0.65 MPa, the maximum housing
pressure of <1.5 MPa and the signal output load of AC36V/1A; and
installing the water flow sensor 36 at the joint of the slurry hose 24 and the
cinder collecting box discharge port 32, and connecting the explosion
proof automatic control switch 41 respectively with the water flow sensor
36, the mixing impellers 31, the slurry pump 33 and the spiral separating
mechanism 44 by the sensor signal line 37, the slurry pump start cable 38,
the cinder separator cable 39 and the mixing impeller cables 40 to control
start-stop;
S10: after completing installation and connection of the device,
drilling the drill hole 4. After drilling the drill hole 4 to the designed depth,
performing ultra-high pressure hydraulic cutting. In the process of cutting
the circular slot 5, when detecting coal-water mixture passing through, the
water flow sensor 36 sends an electrical signal to the explosion-proof
automatic control switch 41 to start the cinder separator. Discharging water
drained from the water drain port 45 into roadway drainage ditches, and
conveying cinders drained from the cinder discharge port 46 centrally to
Description
coal bins;
S11: after completion of cutting, when detecting no coal-water
mixture, the water flow sensor 36 feeds back an electrical signal to the
explosion-proof automatic control switch 41 to turn off the power.
Removing the drill hole cinder collecting device I and moving to next
drilling.
Finally, it should be noted that the above embodiments are only used
for describing, rather than limiting the technical solution of the present
invention. Although the present invention is described in detail with
reference to the preferred embodiments, those ordinary skilled in the art
shall understand that the technical solution of the present invention can be
amended or equivalently replaced without departing from the purpose and
the scope of the technical solution. The amendment or equivalent
replacement shall be covered within the scope of the claims of the present
invention.
Claims (5)
1. A hydraulic cutting drill hole cinder conveying and separating device
used for separating cinders and gas in a drill hole during the process
of drilling with a drill rod, characterized by comprising a drill hole
cinder collecting device, a cinder collecting box, a cinder conveying
pump and a cinder separator which are connected in sequence through
slurry pipes and an automatic control system used for controlling
start-stop of the cinder conveying pump and the cinder separator; and
the drill hole cinder collecting device is sleeved on the end of a drill
hole in the outer side of a drill rod, the drill hole cinder collecting
device, the cinder collecting box and the cinder conveying pump are
connected to a drill hole through a main extraction pipe, and a mixing
impeller is arranged in the cinder collecting box.
2. The hydraulic cutting drill hole cinder conveying and separating
device as claimed in claim 1, characterized in that the drill hole cinder
collecting device comprises a drill hole cinder collecting hood, one
end of the drill hole cinder collecting hood is fixed to the end of the
orifice of a drill hole, and the other end is fixedly arranged on the drill
rod; the drill hole cinder collecting hood is provided with a first gas
extraction port and a first cinder discharge port; the first gas extraction
port is connected to the main extraction pipe through a first gas
extraction pipe; and the first cinder discharge port is connected to the
cinder collecting box through a first slurry hose.
Claims
3. The hydraulic cutting drill hole cinder conveying and separating
device as claimed in claim 2, characterized in that one end of the drill
hole cinder collecting hood, which is used for fixing the end of the
drill hole, is a drilling joint, and the outer side of the drilling joint is
provided with an orifice retaining ring; and the diameter di of the
drillingjoint is larger than the diameter D of a cutting drill bit arranged
on the end of the drill rod, and the orifice retaining ring and the
drilling joint are fixed by means of inserting.
4. The hydraulic cutting drill hole cinder conveying and separating
device as claimed in claim 3, characterized in that the drill hole cinder
collecting hood is a conical cylinder, of which the section diameter
decreases gradually along a direction away from the drill hole; one
side of the drill hole cinder collecting hood away from the drilling
joint is connected to the drill rod through a circular rubber supporting
cushion, and the circular rubber supporting cushion is fixed on the
drill hole cinder collecting hood by a clamp; and the diameter of the
drilling joint is di, the diameter of the first cinder discharge port is d2 ,
the diameter of the first gas extraction port is d3 , the outer diameter of
the circular rubber supporting cushion is d 4 , the inner diameter of the
circular rubber supporting cushion is d 5, the diameter of the drill rod
is D 2 , and d2>d3 =d4 >d>D 2 .
5. The hydraulic cutting drill hole cinder conveying and separating
Claims
device as claimed in claim 1, characterized in that the cinder
collecting box comprises a negative pressure cinder collecting box
which is provided with a cinder collecting box access port, a second
gas extraction port and a cinder collecting box discharge port; the
negative pressure cinder collecting box is connected to the drill hole
cinder collecting device by the first slurry hose through the cinder
collecting box access port, and the second gas extraction port is
connected to the main extraction pipe through a second gas extraction
pipe; and the cinder collecting box discharge port is connected to the
cinder conveying pump through a second slurry hose.
Drawing
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110004028.2A CN112832703B (en) | 2021-01-04 | 2021-01-04 | Hydraulic slotting and drilling coal cinder conveying and separating device |
| CNCN202110004028.2 | 2021-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021101093A4 true AU2021101093A4 (en) | 2021-04-29 |
Family
ID=75625828
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021101093A Active AU2021101093A4 (en) | 2021-01-04 | 2021-03-01 | Hydraulic Cutting Drill Hole Cinder Conveying and Separating Device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN112832703B (en) |
| AU (1) | AU2021101093A4 (en) |
| ZA (1) | ZA202101438B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439393B (en) * | 2021-12-22 | 2024-02-13 | 山西天地王坡煤业有限公司 | Blowout prevention and dust drilling slag treatment system for pneumatic directional drilling of crushed soft coal seam |
| CN114893127A (en) * | 2022-07-14 | 2022-08-12 | 陕西太合工程技术服务有限责任公司 | Directional hydraulic drilling and mining integrated mining device and method for thin coal seam |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470297B (en) * | 2013-09-10 | 2015-11-18 | 湖南省煤炭科学研究院 | One is bored, takes out, is arranged integrated coal seam pressure relief permeability improvement device and using method thereof |
| CN107191153A (en) * | 2017-07-31 | 2017-09-22 | 辽宁工程技术大学 | A kind of mining drilling is drilled spraying-preventing system |
| CN107387159B (en) * | 2017-09-06 | 2019-01-22 | 中煤科工集团重庆研究院有限公司 | To drilling intelligent drainage function dreg removing system and its application under a kind of coal mine gas drainage |
| CN210304514U (en) * | 2019-08-07 | 2020-04-14 | 察右前旗永安恒大特种合金有限责任公司 | Silicon-manganese alloy waste residue collection device |
| CN110953012A (en) * | 2019-12-03 | 2020-04-03 | 山东科技大学 | Efficient cleaning system and method for hydraulic slag removal of floor rock roadway cross-layer drilling |
| CN111645890A (en) * | 2020-05-18 | 2020-09-11 | 滨海县三杰商品砼有限公司 | Feeding equipment for commercial concrete processing |
| CN111636834A (en) * | 2020-05-28 | 2020-09-08 | 中煤科工集团重庆研究院有限公司 | Coal mine underground drilling anti-jet hole gas and slag removal system and method |
| CN111911223A (en) * | 2020-09-01 | 2020-11-10 | 山东省煤田地质局第一勘探队 | Treatment device and method for slurry produced in coal mine operation |
-
2021
- 2021-01-04 CN CN202110004028.2A patent/CN112832703B/en active Active
- 2021-03-01 AU AU2021101093A patent/AU2021101093A4/en active Active
- 2021-03-03 ZA ZA2021/01438A patent/ZA202101438B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202101438B (en) | 2022-08-31 |
| CN112832703B (en) | 2022-10-25 |
| CN112832703A (en) | 2021-05-25 |
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