CN1041925A - Subatmospheric pressure mine ladder - Google Patents
Subatmospheric pressure mine ladder Download PDFInfo
- Publication number
- CN1041925A CN1041925A CN 88109663 CN88109663A CN1041925A CN 1041925 A CN1041925 A CN 1041925A CN 88109663 CN88109663 CN 88109663 CN 88109663 A CN88109663 A CN 88109663A CN 1041925 A CN1041925 A CN 1041925A
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- Prior art keywords
- ladder
- terraced
- air
- case
- terraced case
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- 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.)
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Abstract
A kind of negative pressure with air is used terraced as the mine of lifting power, mainly be made up of the motor that is located at well head, blower fan, cover room, terraced case and hoistway.The ladder upper box part has several seal ring to reduce leakage of air, guarantees terraced case prerequisite sealing property when upper and lower operation.There are four in the cover room and stop the ladder card, when well head is stopped, use for terraced case.
Description
The present invention relates to and lifting instrument that the vertical shaft of digging up mine is supporting, relate in particular to no cable, with the negative pressure of air mining ladder as power.
The mine lift instrument of known technology, it is many to consume steel, the manufacturing cost height, promote cage with wirerope, have disconnected cable danger, for guaranteeing safety, must increase substantially the safety factor of cable, so just improve cable car manufacturing cost and over-the-road expense, increase the burden of enterprise.
Purpose of the present invention is to propose a kind of novel structure, safe and reliable to operation, and manufacturing cost is very low, and is enough to overcome the new design of prior art defective, discloses the subatmospheric pressure mine ladder of a kind of negative pressure with air as lifting power.
Task of the present invention is finished as follows: establish a seal closure room on the well head of vertical shaft, the cover roof is provided with blower fan.During running, the air in cover room and the hoistway is taken away a part, therefore produces the negative pressure of certain value, be in the terraced case of hoistway bottom, under the effect of this negative pressure, the rising of just being picked up, along the hoistway operation, when waiting to arrive pithead position, just stopped terraced card lock.
When descending, the cover door is closed, and the air intake window on tunnel, shaft bottom door and the door all is in closed condition, at this moment returns and stops the ladder card, opens the aie escape valve of terraced upper box part, and terraced case can descend voluntarily.Because of the venting ability of aie escape valve be the section size through strict control, therefore can provide appropriate resistance, make the ore deposit ladder keep suitable reduction of speed.When well was low, push rod at first landed, and stirs rocking lever, and its aie escape valve is closed, and terraced case promptly slows down, and then is parked in the shaft bottom.
Accompanying drawing is the scheme drawing that conforms to theme of the present invention.
As follows referring now to description of drawings:
Motor (1) and blower fan (2) are the power resources of ore deposit ladder. When preparing starting, the ladder case is in the bottom of hoistway (9), tunnel door (20) and air intake window (19) all are in closed condition, cover door (7) and vent valve (12) also are in closed condition, at this moment starting fan (2), make to produce a certain amount of negative pressure in the hoistway (9), force terraced case (16) to rise along hoistway (9). Ladder lower box part low-pressure area, the air that is entered by air intake window (19) replenishes. During well head to be gone upward to, ladder upper box part two road ribs (13) are broken through and are stopped ladder card (14), ladder case (16) is namely locked, vent valve (12) also cuts out under the stirring of push rod (4), upper non-return valve (11) is also closed voluntarily along with motor (1) and stopping of blower fan (2), at this moment can open cover door (7) and terraced case door (6), and mine car can go out from a thruster, empty wagons enters from another thruster, and whole uphill process is namely accused and finished. When descending, shut terraced case door (6) and cover door (7), return and stop ladder card (14), terraced case (16) is namely descending with certain speed. When treating descending near shaft bottom, push rod (4) lands in advance, stir rocking lever (3), terraced box top vent valve (12) cuts out, the air of ladder case (16) bottom, because of the discharging of no place compressed, thereby terraced case (16) is slowed down, treat this air slowly rush down miss after, terraced case (16) namely comes to a complete stop on shaft bottom spring (10).
For guaranteeing the close wind performance of terraced case (16), on its casing top three seals ring (5) is arranged, four sides of casing and upper and lower two ends have eight guide wheels (18), on the circular cross-section of hoistway (9), reduce by one section circular arc, be provided with one section tangent line plane (8), make terraced case (16) when operation is stopped, keep certain level orientation, in order to dock with well head track (17) and shaft bottom track (22), link up tunnel (21).
Because air has better elastic, it is more steady that the operation of ore deposit ladder will become.In addition, the operational process of ore deposit ladder is a process of being interrupted air draft, helps in the tunnel and the underground air circulation, reduces accumulating of hazardous gas, increases more fresh air.
This subatmospheric pressure mine ladder adds change less, also can be used on the inclined shaft.If blower fan can reduce by 5% to normal barometric pressure, every sq m wellhole section can provide 500 kilograms of lift, and the vertical shaft that diameter is 6 meters, the lift that can provide are 14000 kilograms.As when being used on the inclined shaft, its hoisting capacity also increases to some extent.
Claims (1)
- A kind of mining vertical shaft ore deposit ladder, mainly by blower fan, the cover room, terraced case and hoistway are formed, and it is characterized in that said ore deposit ladder promotes power with the negative pressure work of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109663 CN1041925A (en) | 1988-10-10 | 1988-10-10 | Subatmospheric pressure mine ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109663 CN1041925A (en) | 1988-10-10 | 1988-10-10 | Subatmospheric pressure mine ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1041925A true CN1041925A (en) | 1990-05-09 |
Family
ID=4835391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88109663 Pending CN1041925A (en) | 1988-10-10 | 1988-10-10 | Subatmospheric pressure mine ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955115A (en) * | 2010-10-28 | 2011-01-26 | 徐林波 | Air cylinder type wind elevator |
-
1988
- 1988-10-10 CN CN 88109663 patent/CN1041925A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955115A (en) * | 2010-10-28 | 2011-01-26 | 徐林波 | Air cylinder type wind elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |