CN111891756B - Underground fine ore lifting system and application method thereof - Google Patents
Underground fine ore lifting system and application method thereof Download PDFInfo
- Publication number
- CN111891756B CN111891756B CN202010680705.8A CN202010680705A CN111891756B CN 111891756 B CN111891756 B CN 111891756B CN 202010680705 A CN202010680705 A CN 202010680705A CN 111891756 B CN111891756 B CN 111891756B
- Authority
- CN
- China
- Prior art keywords
- air pipe
- vertical air
- pipe
- relay
- conveying fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 39
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/48—Screws or like rotary conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/04—Transport of mined material in gravity inclines; in staple or inclined shafts
- E21F13/042—Vertical hydraulic conveying of coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/04—Transport of mined material in gravity inclines; in staple or inclined shafts
- E21F13/045—Bunkers specially adapted for mining purposes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an underground fine ore lifting system and an application method thereof, wherein the system comprises a vertical air pipe, a bottom conveying fan, a spiral conveyor, a relay conveying fan, a separation collector, a discharger and an air purifier; the method comprises the steps of crushing blocky mineral materials into powder, feeding the powder into a powder bin, feeding the powder into a vertical air pipe through a spiral conveying fan, providing high-pressure and high-speed turbulent air into the vertical air pipe through a bottom conveying fan and a relay conveying fan to blow and lift the powder and the mineral upwards, feeding the lifted mineral into a separation collector for collecting, purifying the air flow in the separation collector by an air purifier, discharging, and discharging the collected materials in the separation collector through a closed discharger. The wind power pipeline lifting of the fine ore is realized by taking air as a transmission medium, the energy effective utilization rate is high, the lifting speed is high, large-scale lifting equipment is not needed, the whole lifting process is closed, and the wind power pipeline lifting device has the advantages of safety, economy and high efficiency, so that the cost of mining is reduced.
Description
Technical Field
The invention belongs to the field of underground ore lifting, and particularly relates to an underground fine ore lifting system and an application method thereof.
Background
Ore lifting is a core link of underground mine enterprise operation, a conventional lifting system usually needs complex lifting equipment, large-scale maintenance materials and high operation cost, and the energy effective utilization rate is not high, so that ore lifting and transportation occupy a great proportion in ore production cost, and the ore lifting and transportation play an important role in influencing mine development.
Disclosure of Invention
The invention aims to provide a fine ore lifting system by means of wind power and an application method thereof, and the mining cost is reduced.
The invention provides an underground powder ore lifting system which comprises a vertical air pipe, a bottom conveying fan, a spiral conveyor, a relay conveying fan, a separation material collector, a discharger and an air purifier, wherein the bottom conveying fan is arranged on the vertical air pipe; the bottom conveying fan is arranged below one side of the bottom of the vertical air pipe corresponding to the fine ore bin, and an air outlet of the bottom conveying fan is communicated with the vertical air pipe through an upward bent pipe; the spiral conveyor is arranged above the bottom conveying fan and used for conveying the fine ore materials in the fine ore bin to the vertical air pipe in a closed mode; the relay conveying fan is arranged above the spiral conveyor, and an air outlet of the relay conveying fan is communicated with the vertical air pipe through an upward bent pipe; the bottom conveying fan and the relay conveying fan convey high-speed high-pressure turbulent air into the vertical air pipe to blow and lift the fine ore materials in the vertical air pipe upwards; the separation material collector is arranged on the ground surface, the outlet of the vertical air pipe is connected to the feeding port of the separation material collector, and a closed discharger is arranged at the outlet of the separation material collector; the air purifier is arranged at the air outlet of the separation collector and purifies the air flow at the air outlet of the separation collector and then discharges the air flow.
In one embodiment of the above technical scheme, the vertical air pipe is a high-strength pressure-resistant wear-resistant steel pipe with a spiral groove formed in the through length of the inner wall, the diameter of the vertical air pipe is 200 mm-300 mm, and a drop material collecting bin with a closed bin door is arranged at the lower port of the vertical air pipe; the vertical air pipe extends out of the earth surface and is communicated with the separation material collector through an expanding elbow.
In one embodiment of the above technical solution, the bottom conveying fan and the relay conveying fan both adopt horizontal axial flow counter-rotating fans, and turbulent air with a wind pressure greater than 0.5MPa and a wind speed not lower than 30m/s is pressed into the vertical air duct.
In one embodiment of the above technical scheme, the air outlets of the bottom conveying fan and the relay conveying fan are both provided with check valves, the two ends of the upward elbow are respectively connected with the outlet of the check valve and the vertical air pipe, and the connecting position of the vertical air pipe corresponds to the tangential direction of the spiral groove on the inner wall of the vertical air pipe.
In one embodiment of the above technical solution, the screw conveyor is arranged horizontally, and is provided with a long screw shaft to convey the fine mineral aggregate, and a discharge opening of the long screw shaft is communicated with the vertical air duct.
In one embodiment of the above technical solution, the separation collector is a cyclone separator, and includes a housing, and a partition plate, a porous plate and a filter screen disposed in an inner cavity of the housing; the upper section of the shell is a cylindrical section, the lower section of the shell is a conical section, the partition plate is arranged along the inner wall of one side of the cylindrical section close to the cylindrical section in the axial direction of the cylindrical section, the two radial sides of the partition plate are connected with the inner wall of the cylindrical section, and the lower end of the partition plate in the axial direction extends into the conical section; the perforated plates are arranged between the partition plate and the inner wall of the other side of the cylindrical section in parallel up and down along the radial direction of the cylindrical section, the positions of the openings on each perforated plate are staggered, and the air inlet side of each perforated plate is covered with a fixed filter screen; a feeding port of the separation material collector is arranged at the upper part of the side wall of the cylindrical section close to the partition plate section, and an air outlet is arranged at the upper part of the opposite side of the feeding port; the lower port of the conical section is a discharge port, and the closed discharger is connected to the lower port of the cylindrical section.
In one embodiment of the above technical scheme, the wall of the vertical air duct is provided with a plurality of groups of sensors, which are respectively used for monitoring the flow velocity of the air flow in the vertical air duct and the concentration of the fine ore in the air flow.
In one embodiment of the above technical solution, the system further comprises a relay station communicated with the vertical air pipe, the relay station comprises a relay bin and a relay air feeder, the relay bin is vertically arranged, the relay air feeder is horizontally arranged, a feeding port of the relay bin is communicated with the vertical air pipe, an air outlet is communicated with an air inlet of the relay air feeder through an air return pipe, an air outlet of the relay air feeder is communicated with the vertical air pipe through an upward elbow pipe, a discharge port of the relay bin is connected with a closed discharger, a discharge port of the discharger is communicated with the upward elbow pipe, and an air outlet of the relay air feeder is connected with a check valve; an accident guide pipe is connected between the relay bin and the vertical air pipe, and check valves are respectively connected at the inlet of the accident guide pipe and below a communication port of the vertical air pipe corresponding to the accident guide pipe.
In one embodiment of the above technical solution, the closed type discharger is a spiral discharge valve.
The method for lifting fine ore by using the system provided by the invention comprises the following steps:
(1) drilling a vertical hole in a rock mass nearby the corresponding powder ore bin, wherein the depth of the vertical hole is greater than that of the powder ore bin, and a vertical air pipe is sleeved in the vertical hole;
(2) a falling material collecting bin is arranged at the lower port of the vertical air pipe;
(3) horizontally mounting a bottom conveying fan at a designated position on one side of the vertical air pipe corresponding to the lower part of the fine ore bin, and well connecting an upward bent pipe connected with an air outlet of the bottom conveying fan with the vertical air pipe;
(4) a spiral conveyor is horizontally arranged at a discharge port of the fine ore bin, and a discharge port of the spiral conveyor is connected with a vertical air pipe;
(5) horizontally installing a relay conveying fan and an upward bent pipe at a specified position above the spiral conveyor according to the step (3);
(6) installing each sensor at the appointed position of the side wall of the vertical air pipe, and connecting the data line of the sensor with a computer;
(7) mounting a separation collector on the ground surface, and connecting the upper end of a vertical air pipe to an inlet of the separation collector;
(8) a closed discharger is arranged at the discharge port of the separation collector, and an air purifier is arranged at the air outlet;
(9) enabling a bottom conveying fan and a relay conveying air feeder to work, pressing high-speed and high-pressure turbulent air into a vertical air pipe, enabling a spiral conveyor to work, conveying powder mineral aggregates into the vertical air pipe, enabling the powder mineral aggregates to be lifted upwards under the action of wind power and enter a separation material collector, and enabling heavy-particle powder ores in the powder mineral aggregates to fall into a falling material collecting bin;
(10) the fine ore in the separation collector is discharged by a closed type discharger for hauling or piling.
The invention crushes the lump ore into powder and enters the powder ore bin, the powder ore is sent into the vertical air duct by the screw conveyer, the powder ore is blown and lifted upwards by the high-pressure and high-speed turbulent air supplied into the vertical air duct by the bottom conveyer and the relay conveyer, the lifted material enters the separation collector to be collected, the air flow in the separation collector is purified by the air purifier and then discharged, and the collected material in the separation collector is discharged by the closed discharger. The invention realizes the wind pipeline lifting of the fine ore by taking air as a transmission medium, has high energy effective utilization rate and high lifting speed, does not need large-scale lifting equipment, has the advantages of safety, economy and high efficiency, is sealed in the whole lifting process, and solves the problem of high ore lifting cost in the prior art, thereby reducing the mining cost.
Drawings
Fig. 1 is a system diagram according to a first embodiment of the invention.
FIG. 2 is a schematic sectional view of the separation collector of FIG. 1.
Fig. 3 is a system diagram of a second embodiment of the invention.
Fig. 4 is an enlarged schematic layout of the relay station in fig. 3.
Detailed Description
In the first embodiment, the lifting height of the present embodiment is small, and no relay station is provided.
As shown in fig. 1, the system comprises a vertical air pipe 1, a bottom conveying fan 2, a screw conveyor 3, a relay conveying fan 4, a separation collector 5, an air purifier 6 and a closed discharger XLQ.
The vertical air pipe 1 is a high-strength compression-resistant wear-resistant steel pipe with a spiral groove in the through length of the inner wall, the diameter of the steel pipe is 200-300 mm, and a falling material collecting bin 7 with a closed bin door is arranged at the lower end opening of the steel pipe.
The bottom conveying fan 2 and the relay conveying fan 4 both adopt axial flow counter-rotating fans which are horizontally arranged, and turbulent air with the air pressure of more than 0.5MPa and the air speed of not less than 30m/s is pressed into the vertical air pipe.
The air outlets of the bottom conveying fan 2 and the relay conveying fan 4 are both provided with a check valve NZF, two ends of the upward elbow SXWG are respectively connected with the outlet of the check valve and the vertical air pipe 1, and the connecting position of the upward elbow SXWG and the vertical air pipe 1 corresponds to the tangential direction of the spiral groove on the inner wall of the vertical air pipe 1.
The screw conveyor 3 is horizontally arranged and provided with a screw long shaft for conveying powder mineral aggregate, and a discharge opening of the screw long shaft is communicated with the vertical air pipe 1.
As can be seen from fig. 1 and 2, the separating collector 5 is a cyclone separator, and includes a housing 51, a partition plate 52 disposed in an inner cavity of the housing, a porous plate 53, and a filter screen.
The upper section of the shell 51 is a cylindrical section, the lower section is a conical section, the partition plate 52 is arranged along the inner wall of one side of the cylindrical section close to the cylindrical section in the axial direction, the two radial sides of the partition plate are connected with the inner wall of the cylindrical section, and the lower end in the axial direction extends into the conical section.
The perforated plate 53 has a plurality of blocks, and is arranged between the inner wall of the other side of the partition plate and the inner wall of the other side of the cylindrical section in parallel up and down along the radial direction of the cylindrical section, and the positions of the holes on each perforated plate are staggered. The air inlet side of each perforated plate 53 is covered with a fixed filter screen.
A feeding port of the separation material collector 5 is arranged at the upper part of the side wall of the cylindrical section close to the partition plate section, and an air outlet is arranged at the upper part of the opposite side of the feeding port; the lower port of the conical section is a discharge port, and the closed discharger 6 is connected to the lower port of the conical section. The closed discharger XLQ of this embodiment employs a spiral discharge valve.
The upper end of the vertical air pipe 1 extends out of the earth surface and is an expanding elbow KJWG, the tail end of the expanding elbow is inserted from a feeding port on the side wall of the separation collector, so that the powder and ore materials lifted in the vertical air pipe are deposited and separated in the separation collector under the action of the partition plate, the porous plate and the filter screen and enter the closed discharger, and the air flow at the air outlet of the separation collector is purified by the air purifier and then is discharged.
The pipe wall of the vertical air pipe 1 is provided with a plurality of groups of sensors CGQ which are respectively used for monitoring the flow velocity of air flow in the vertical air pipe and the concentration of fine ore in the air flow, and the working condition of each device can be adjusted according to monitoring data, so that automatic control is realized.
The relay conveying fans 4 can be arranged in a plurality of groups up and down according to requirements, so that normal conveying of powder ore materials can be realized.
The second embodiment and the present embodiment are different from the first embodiment in that: the lifting height is large, and relay station relay conveying needs to be arranged, as shown in fig. 3 and 4.
As shown in fig. 3, the relay station is disposed above the connection conveyor fan 4.
It can be seen from fig. 4 and fig. 4 that the air conditioner comprises a relay bin 8 and a relay conveying fan 9, wherein the relay bin 8 is vertically arranged, the relay conveying fan 9 is horizontally arranged below the relay bin, a feeding port of the relay bin 8 is communicated with a vertical air pipe 1 through a relay feeding pipe 10, an air outlet is communicated with an air inlet of the relay conveying fan 9 through an air return pipe 11, and a filter screen is arranged at the air outlet. The air outlet of the relay conveying fan 9 is communicated with the vertical air pipe 1 through an upward elbow pipe SXWG, the discharge port of the relay bin is connected with a closed discharger XLQ, the discharge port of the discharger is communicated with the horizontal section of the upward elbow pipe WG, and the air outlet of the relay conveying fan is connected with a check valve NZF. An accident guide pipe 12 is further connected between the relay bin 8 and the vertical air pipe 1, and a check valve NZF is connected to the inlet of the accident guide pipe and the lower portion of the communication port of the vertical air pipe 1 corresponding to the accident guide pipe 12.
The entrance of the transfer feed pipe is provided with a check valve NZF, and the vertical air pipe is provided with the check valve NZF above the transfer feed pipe.
The closed discharger XLQ of the relay station also employs a screw discharge valve.
When the lifting height is too large, a relay station is arranged for relay conveying, at the moment, a check valve on the vertical air pipe, which is positioned near the upper part of the transfer feeding pipe, is closed, a check valve at the inlet of the transfer feeding pipe and near the lower part of the accident guide pipe is opened, so that the fine ore materials in the vertical air pipe enter a relay bin, and return air in the relay bin enters a return air pipe after being filtered and then is connected to a relay conveying fan. And the spiral discharge valve at the discharge port at the bottom of the relay bin conveys the fine ore in the relay bin through the transfer feeding pipe by wind power continuously.
When an accident occurs and needs emergency treatment, the check valve below the accident guide pipe on the vertical air pipe is closed, the check valve at the inlet of the accident discharging pipe is opened, and the powder mineral aggregate is temporarily stored through the relay bin.
The invention sends the powder ore in the powder ore bin into the vertical air pipe through the screw conveyor, and sends high-speed high-pressure turbulent air into the vertical air pipe through the bottom conveying fan and the relay conveying fan to blow and lift the powder ore in the vertical air pipe upwards. The spiral groove is arranged on the inner wall of the vertical air duct, so that the effective blowing of the mineral powder is further ensured, the mineral powder is lifted out of the ground surface and enters the separation material collector for collecting, the air outlet of the separation material collector is purified by the air purifier and then discharged, and the collected materials in the separation material collector are discharged by the closed discharger. The specific application of the system comprises the following processes:
a preparation process
(1) Determining whether a relay station needs to be set according to the lifting height;
(2) selecting the types of the bottom conveying fan, the relay conveying fan, the screw conveyor and the relay conveying fan according to the steps;
(3) and (3) designing the type selection of the separation collector and the closed type discharger according to the step (2).
Secondly, construction and lifting processes:
(1) drilling a vertical hole in a rock mass nearby the corresponding powder ore bin, wherein the depth of the vertical hole is greater than that of the powder ore bin, and a vertical air pipe is sleeved in the vertical hole;
(2) a falling material collecting bin is arranged at the lower port of the vertical air pipe;
(3) horizontally mounting a bottom conveying fan at a designated position on one side of the vertical air pipe corresponding to the lower part of the fine ore bin, and well connecting an upward bent pipe connected with an air outlet of the bottom conveying fan with the vertical air pipe;
(4) a spiral conveyor is horizontally arranged at a discharge port of the fine ore bin, and a discharge port of the spiral conveyor is connected with a vertical air pipe;
(5) horizontally installing a relay conveying fan and an upward bent pipe at a specified position above the spiral conveyor according to the step (3);
(6) installing each sensor at the appointed position of the side wall of the vertical air pipe, and connecting the data line of the sensor with a computer;
(7) installing a relay station at a designated position according to design requirements;
(8) mounting a separation collector on the ground surface, and connecting the upper end of a vertical air pipe to an inlet of the separation collector;
(9) a spiral discharger is arranged at the discharge port of the separation collector, and an air purifier is arranged at the air outlet;
(10) enabling a bottom conveying fan, a relay conveying fan and/or corresponding equipment of a relay station to work, pressing high-speed and high-pressure turbulent air into a vertical air pipe, enabling a spiral conveyor to work and convey powder mineral aggregates into the vertical air pipe, enabling the powder mineral aggregates to be lifted upwards under the action of wind power, and enabling heavy-particle powder minerals in the powder mineral aggregates to fall into a falling material collecting bin;
(11) and the aggregate in the separation collector is hauled or stockpiled after being discharged through a spiral discharge valve.
Claims (9)
1. An underground powder ore hoist system which characterized in that: the device comprises a vertical air pipe, a bottom conveying fan, a spiral conveyor, a relay conveying fan, a separation material collector, a discharger and an air purifier;
the bottom conveying fan is arranged below one side of the bottom of the vertical air pipe corresponding to the fine ore bin, and an air outlet of the bottom conveying fan is communicated with the vertical air pipe through an upward bent pipe; the spiral conveyor is arranged above the bottom conveying fan and used for conveying the fine ore materials in the fine ore bin to the vertical air pipe in a closed mode; the relay conveying fan is arranged above the spiral conveyor, and an air outlet of the relay conveying fan is communicated with the vertical air pipe through an upward bent pipe;
the bottom conveying fan and the relay conveying fan convey high-speed high-pressure turbulent air into the vertical air pipe to blow and lift the fine ore materials in the vertical air pipe upwards;
the separation material collector is arranged on the ground surface, the outlet of the vertical air pipe is connected to the feeding port of the separation material collector, and a closed discharger is arranged at the outlet of the separation material collector;
the air purifier is arranged at the air outlet of the separation collector and is used for purifying and discharging the air flow at the air outlet of the separation collector;
the system also comprises a relay station communicated with the vertical air pipe, wherein the relay station comprises a relay bin and a relay conveying blower, the relay bin is vertically arranged, the relay conveying blower is horizontally arranged, a feeding port of the relay bin is communicated with the vertical air pipe, an air outlet of the relay bin is communicated with an air inlet of the relay conveying blower through an air return pipe, an air outlet of the relay conveying blower is communicated with the vertical air pipe through an upward bent pipe, a discharge port of the relay bin is connected with a closed discharger, a discharge port of the discharger is communicated with the upward bent pipe, and an air outlet of the relay conveying blower is connected with a check valve; an accident guide pipe is connected between the relay bin and the vertical air pipe, and check valves are respectively connected at the inlet of the accident guide pipe and below a communication port of the vertical air pipe corresponding to the accident guide pipe.
2. The underground fine ore lifting system according to claim 1, wherein: the vertical air pipe is a high-strength compression-resistant wear-resistant steel pipe with a spiral groove formed in the through length of the inner wall, the diameter of the vertical air pipe is 200 mm-300 mm, and a material dropping collection bin with a closed bin door is arranged at the lower end opening of the vertical air pipe; the vertical air pipe extends out of the earth surface and is communicated with the separation material collector through an expanding elbow.
3. The underground fine ore lifting system according to claim 1, wherein: the bottom conveying fan and the relay conveying fan both adopt axial flow type counter-rotating fans which are horizontally arranged, and turbulent air with the air pressure larger than 0.5MPa and the air speed not lower than 30m/s is pressed into the vertical air pipe.
4. The underground fine ore lifting system according to claim 1, wherein: the air outlets of the bottom conveying fan and the relay conveying fan are respectively provided with a check valve, the two ends of the upward bent pipe are respectively connected with the outlet of the check valve and the vertical air pipe, and the connecting position of the upward bent pipe corresponds to the tangential direction of the spiral groove on the inner wall of the vertical air pipe.
5. The underground fine ore lifting system according to claim 1, wherein: the spiral conveyor is horizontally arranged and provided with a spiral long shaft for conveying powder mineral aggregate, and a discharge opening of the spiral long shaft is communicated with the vertical air pipe.
6. The underground fine ore lifting system according to claim 1, wherein: the separation collector is a cyclone separator and comprises a shell, and a partition plate, a porous plate and a filter screen which are arranged in an inner cavity of the shell;
the upper section of the shell is a cylindrical section, the lower section of the shell is a conical section, the partition plate is arranged along the inner wall of one side of the cylindrical section close to the cylindrical section in the axial direction of the cylindrical section, the two radial sides of the partition plate are connected with the inner wall of the cylindrical section, and the lower end of the partition plate in the axial direction extends into the conical section;
the perforated plates are arranged between the partition plate and the inner wall of the other side of the cylindrical section in parallel up and down along the radial direction of the cylindrical section, the positions of the openings on each perforated plate are staggered, and the air inlet side of each perforated plate is covered with a fixed filter screen;
a feeding port of the separation material collector is arranged at the upper part of the side wall of the cylindrical section close to the partition plate section, and an air outlet is arranged at the upper part of the opposite side of the feeding port;
the lower port of the conical section is a discharge port, and the closed discharger is connected to the lower port of the cylindrical section.
7. The underground fine ore lifting system according to claim 1, wherein: and the pipe wall of the vertical air pipe is provided with a plurality of groups of sensors which are respectively used for monitoring the flow velocity of the air flow in the vertical air pipe and the concentration of the fine ores in the air flow.
8. The underground fine ore lifting system according to claim 1, wherein: the closed type discharger is a spiral discharge valve.
9. A method for lifting fine ore using the system of claim 1, comprising the steps of:
(1) drilling a vertical hole in a rock mass nearby the corresponding powder ore bin, wherein the depth of the vertical hole is greater than that of the powder ore bin, and a vertical air pipe is sleeved in the vertical hole;
(2) a falling material collecting bin is arranged at the lower port of the vertical air pipe;
(3) horizontally mounting a bottom conveying fan at a designated position on one side of the vertical air pipe corresponding to the lower part of the fine ore bin, and well connecting an upward bent pipe connected with an air outlet of the bottom conveying fan with the vertical air pipe;
(4) a spiral conveyor is horizontally arranged at a discharge port of the fine ore bin, and a discharge port of the spiral conveyor is connected with a vertical air pipe;
(5) horizontally installing a relay conveying fan and an upward bent pipe at a specified position above the spiral conveyor according to the step (3);
(6) installing each sensor at the appointed position of the side wall of the vertical air pipe, and connecting the data line of the sensor with a computer;
(7) mounting a separation collector on the ground surface, and connecting the upper end of a vertical air pipe to an inlet of the separation collector;
(8) a closed discharger is arranged at the discharge port of the separation collector, and an air purifier is arranged at the air outlet;
(9) enabling a bottom conveying fan and a relay conveying air feeder to work, pressing high-speed and high-pressure turbulent air into a vertical air pipe, enabling a spiral conveyor to work, conveying powder mineral aggregates into the vertical air pipe, enabling the powder mineral aggregates to be lifted upwards under the action of wind power and enter a separation material collector, and enabling heavy-particle powder ores in the powder mineral aggregates to fall into a falling material collecting bin;
(10) the fine ore in the separation collector is discharged by a closed type discharger for hauling or piling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680705.8A CN111891756B (en) | 2020-07-15 | 2020-07-15 | Underground fine ore lifting system and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680705.8A CN111891756B (en) | 2020-07-15 | 2020-07-15 | Underground fine ore lifting system and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111891756A CN111891756A (en) | 2020-11-06 |
| CN111891756B true CN111891756B (en) | 2021-08-27 |
Family
ID=73192790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010680705.8A Active CN111891756B (en) | 2020-07-15 | 2020-07-15 | Underground fine ore lifting system and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111891756B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB282499A (en) * | 1926-09-22 | 1927-12-22 | Dorman Long And Company Ltd | Improvements in, and relating to, the pneumatic conveyance of coal and other materials |
| DE3813551A1 (en) * | 1988-03-17 | 1989-09-28 | Brieden Karl Bau Beteiligung | Apparatus for steep-incline conveying of construction material in underground operation |
| CN103080473A (en) * | 2010-08-16 | 2013-05-01 | 乔治·安东尼·奥利西奥 | Apparatus and method for mining coal |
| CN203214458U (en) * | 2013-04-23 | 2013-09-25 | 朱德馨 | Air lifter |
| CN204150703U (en) * | 2014-09-11 | 2015-02-11 | 中联重科股份有限公司 | Device for transporting objects and bituminous mixing plant |
| CN204751507U (en) * | 2015-06-25 | 2015-11-11 | 江西红星变性淀粉有限公司 | Prevent blockking up modified starch raw materials wind and send pipeline |
| CN205500279U (en) * | 2015-01-09 | 2016-08-24 | 新汶矿业集团有限责任公司 | Vortex revolves air conveying equipment that floats |
| CN107816635A (en) * | 2017-12-01 | 2018-03-20 | 中国电力工程顾问集团西北电力设计院有限公司 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe and anti-blocking supplementing method for air over long distances |
| CN208960133U (en) * | 2018-09-26 | 2019-06-11 | 湖北巨都玻纤新材料有限公司 | It is a kind of for making the kaolin grinder abrasive flour separator of glass |
-
2020
- 2020-07-15 CN CN202010680705.8A patent/CN111891756B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB282499A (en) * | 1926-09-22 | 1927-12-22 | Dorman Long And Company Ltd | Improvements in, and relating to, the pneumatic conveyance of coal and other materials |
| DE3813551A1 (en) * | 1988-03-17 | 1989-09-28 | Brieden Karl Bau Beteiligung | Apparatus for steep-incline conveying of construction material in underground operation |
| CN103080473A (en) * | 2010-08-16 | 2013-05-01 | 乔治·安东尼·奥利西奥 | Apparatus and method for mining coal |
| CN203214458U (en) * | 2013-04-23 | 2013-09-25 | 朱德馨 | Air lifter |
| CN204150703U (en) * | 2014-09-11 | 2015-02-11 | 中联重科股份有限公司 | Device for transporting objects and bituminous mixing plant |
| CN205500279U (en) * | 2015-01-09 | 2016-08-24 | 新汶矿业集团有限责任公司 | Vortex revolves air conveying equipment that floats |
| CN204751507U (en) * | 2015-06-25 | 2015-11-11 | 江西红星变性淀粉有限公司 | Prevent blockking up modified starch raw materials wind and send pipeline |
| CN107816635A (en) * | 2017-12-01 | 2018-03-20 | 中国电力工程顾问集团西北电力设计院有限公司 | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe and anti-blocking supplementing method for air over long distances |
| CN208960133U (en) * | 2018-09-26 | 2019-06-11 | 湖北巨都玻纤新材料有限公司 | It is a kind of for making the kaolin grinder abrasive flour separator of glass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111891756A (en) | 2020-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206082771U (en) | From breaker who takes filtering capability | |
| CN201175700Y (en) | Casting type granular material sorting device | |
| CN209919434U (en) | Hidden metal scrap collecting device | |
| CN102600923B (en) | Magnetite finish grinding system and grinding method thereof | |
| CN103045777B (en) | Dry processing technique for iron-containing steel slag | |
| CN203002448U (en) | Cement open-circuit grinding system with powder pre-selecting function | |
| CN108014913A (en) | The Ultra-low-grade magnetite beneficiation method and system of association Phosphate minerals | |
| CN106669888A (en) | Efficient roller pressing grinding station and technique thereof | |
| CN102828776A (en) | Mine underground filling system | |
| US20220314233A1 (en) | Underground coal hypergravity field separation system and separation process | |
| CN218250708U (en) | Grinding system | |
| CN108855436B (en) | Mineral processing equipment | |
| CN111891756B (en) | Underground fine ore lifting system and application method thereof | |
| CN108031541B (en) | Perlite ore sand semi-wet production line and production process thereof | |
| CN104948227B (en) | A kind of underground coal mine washing process dual system method for arranging | |
| CN111971126B (en) | System and method for separating pieces having a second density from a granular material | |
| CN106423538A (en) | Copper mineral and nonferrous metal mineral separating method and device | |
| CN215611805U (en) | Production facility that mining barren rock preparation aggregate was with having high-efficient dust removal | |
| CN111617872A (en) | Large-scale dry-method enrichment ore dressing energy-saving and environment-friendly process for quartz-vein noble metal ore | |
| CN214811543U (en) | Fuel ore screening and dewatering device of fine casting powder production line | |
| CN202788932U (en) | Underground filling system | |
| CN112403647B (en) | Arrangement method of intelligent dry separation system for underground transfer points | |
| CN209577389U (en) | Powder raw material sorting machine | |
| CN207430514U (en) | A kind of stagewise underground coal mine washing system | |
| CN211964508U (en) | Ore reducing mechanism for coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |