CN211202047U

CN211202047U - Drop shaft with buffer protection function

Info

Publication number: CN211202047U
Application number: CN201922087640.1U
Authority: CN
Inventors: 王学梁; 郑明华; 赵磊; 付高斌
Original assignee: Hubei Sanning Mining Co ltd
Current assignee: Hubei Sanning Mining Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-07
Anticipated expiration: 2029-11-28

Abstract

The utility model provides an ore pass with buffering protection function, at least, including main ore pass, first branch's downward slide and second branch's downward slide, first branch's downward slide includes first inclined downward slide and first horizontal tunnel at least, first inclined downward slide is equipped with first gate with first horizontal tunnel junction, the upper end of first inclined downward slide is equipped with first baffle, and the lower extreme of first inclined downward slide is equipped with first buffering step, second branch's downward slide includes second inclined downward slide and second horizontal tunnel at least, the junction of second inclined downward slide and second horizontal tunnel is equipped with the second gate, the upper end of second inclined downward slide is equipped with the second baffle, and the lower extreme of second inclined downward slide is equipped with the second buffering step, this ore pass with buffering protection function not only can buffer the impact force of main ore pass and branch's downward slide, can also control the ore discharge volume of branch's downward slide, preventing the ore from blocking.

Description

Drop shaft with buffer protection function

Technical Field

The utility model relates to a drop shaft with buffering protect function belongs to mining engineering technical field.

Background

The drop shaft is an important ore transportation channel of each section of underground mining, is a throat for storing and transferring ores, has great influence on mine production if the drop shaft is stable and smooth, not only influences production once the damage is caused, but also threatens the safety of the whole slipping system and a main shaft, wherein the impact damage and the blockage of the ores when the ores are unloaded downwards are one of important reasons, currently, most of domestic drop shafts adopt multi-stage simultaneous production mines and adopt a branch inclined drop shaft and multi-stage ore unloading straight drop shafts, but the branch inclined drop shafts are not improved, the impact force of the ores entering the main drop shaft from the branch inclined drop shafts is large, and a plurality of branch inclined drop shafts unload the ores simultaneously, so that the ore blockage is easily caused, and a novel drop shaft capable of buffering the impact force of the ores and early warning and controlling the ore unloading amount is urgently needed.

Disclosure of Invention

An object of the utility model is to solve the not enough of current drop shaft, provide a drop shaft with buffering protect function, not only can cushion the impact force of main drop shaft and the oblique downward slope of branch, can also control the unloading volume of the oblique downward slope of branch, prevent that the ore from blockking up.

The utility model provides a technical scheme that its technical problem adopted as follows: a chute with a buffer protection function at least comprises a main chute, a first branch chute and a second branch chute, wherein the upper end of the main chute is provided with a chute inlet, the lower end of the main chute is provided with an ore storage bin, the middle of the main chute is respectively connected with the first branch chute and the second branch chute, the lower end of the chute inlet is provided with a baffle, the baffle is connected to the inner wall of the main chute in a suspension manner, the first branch chute at least comprises a first inclined chute and a first horizontal roadway, the joint of the first inclined chute and the first horizontal roadway is provided with a first gate, the upper end of the first inclined chute is provided with a first baffle, the lower end of the first inclined chute is provided with a first buffer step, the second branch chute at least comprises a second inclined chute and a second horizontal roadway, the joint of the second inclined chute and the second horizontal roadway is provided with a second gate, the upper end of the second inclined chute is provided with a second baffle, and the lower extreme of the oblique downward slope of second is equipped with second buffering step, the branch is equipped with first embedded buffering chamber and the embedded buffering chamber of second on the main drop shaft inner wall, the opening direction of first embedded buffering chamber towards the export of the first oblique downward slope, the opening direction of the embedded buffering chamber of second towards the export of the oblique downward slope of second, be equipped with weighing sensor in the ore storage bin.

Furthermore, manganese steel anti-abrasion layers are arranged on the inner walls of the main drop shaft, the first branch drop passage and the second branch drop passage.

Furthermore, the grinding column is in a triangular shape with a narrow upper part and a wide lower part.

Furthermore, the outlet ends of the bottom of the first buffer step and the bottom of the second buffer step are lower than the other ends of the first buffer step and the second buffer step, and the open ends of the bottom of the first embedded buffer chamber and the bottom of the second embedded buffer chamber are lower than the other ends of the first embedded buffer chamber and the second embedded buffer chamber.

Further, first baffle and second baffle are rubber baffle, the bottom of first buffering step, the bottom of second buffering step, the bottom of first embedded buffer chamber and the bottom of second embedded buffer chamber all are equipped with rubber buffer layer.

Furthermore, early warning devices are arranged in the first horizontal roadway and the second horizontal roadway.

The utility model provides a drop shaft with buffering protect function's beneficial effect lies in:

(1) this drop shaft with buffering protect function when the ore gets into main drop shaft, through the column reposition of redundant personnel and slow down the impact force, the ore not only can slow down the impact force through the baffle entering first branch downward road and second branch downward road simultaneously, can also slow down the impact force through embedded buffering chamber simultaneously, all is equipped with manganese steel abrasionproof layer on this drop shaft inner wall with buffering protect function simultaneously, protection drop shaft that can be fine prevents that the impact of ore from causing the damage to it.

(2) This ore storage storehouse of drop shaft with buffering protect function is equipped with weighing sensor, constantly monitors the early warning to the ore storage storehouse in the ore deposit volume, in case exceed standard, early warning device in first horizontal tunnel and the second horizontal tunnel will start, through closing first gate or second gate, makes the ore that gets into main drop shaft reduce, prevents to block up the emergence of accident because of the too much ore deposit volume that leads to the drop shaft in the well, protection lives and property safety.

Drawings

Fig. 1 is a schematic structural view of the chute with the buffering protection function of the present invention.

In the figure: 1. the device comprises a main shaft, 2, a first branch chute, 3, a second branch chute, 4, an ore storage bin, 5, a chute inlet, 6, a baffle, 7, a first horizontal roadway, 8, a first inclined chute, 9, a first gate, 10, a first baffle, 11, a first buffer step, 12, a first embedded buffer chamber, 13, a second horizontal roadway, 14, a second inclined chute, 15, a second gate, 16, a second baffle, 17, a second buffer step, 18, a second embedded buffer chamber and 19, a weighing sensor.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the chute with buffer protection function provided by the utility model at least comprises a main chute 1, a first branch chute 2 and a second branch chute 3, wherein the inner walls of the main chute 1, the first branch chute 2 and the second branch chute 3 are all provided with manganese steel anti-abrasion layers, the upper end of the main chute 1 is provided with a chute inlet 5, the lower end of the main chute 1 is provided with an ore storage bin 4, the middle of the main chute is respectively connected with the first branch chute 2 and the second branch chute 3, the lower end of the chute inlet 5 is provided with an axial pin 6, the axial pin 6 is connected to the inner wall of the main chute 1 in a suspending way, the axial pin 6 is in a triangular shape with a narrow upper part and a wide lower part, the first branch chute 2 at least comprises a first inclined chute 8 and a first horizontal roadway 7, the joint of the first inclined chute 8 and the first horizontal roadway 7 is provided with a first inclined gate 9, the upper end of the first chute 8 is provided with a first baffle 10, and the lower end of the first inclined chute 8 is provided with a first buffering step 11, the second branch chute 3 at least comprises a second inclined chute 14 and a second horizontal roadway 13, early warning devices are arranged in the first horizontal roadway 7 and the second horizontal roadway 13, a second gate 15 is arranged at the joint of the second inclined chute 14 and the second horizontal roadway 13, the upper end of the second inclined chute 14 is provided with a second baffle 16, the lower end of the second inclined chute 14 is provided with a second buffering step 17, the inner wall of the main chute 1 is provided with a first embedded buffering chamber 12 and a second embedded buffering chamber 18 in a distributed manner, the opening direction of the first embedded buffering chamber 12 faces the outlet of the first inclined chute 8, the opening direction of the second embedded buffering chamber 18 faces the outlet of the second inclined chute 14, the bottom of the first buffering step 11 and the outlet end of the bottom of the second buffering step 17 are both lower than the other end, the open end of first embedded buffer chamber 12 bottom and the embedded buffer chamber 18 bottom of second all is lower than the other end, first baffle 10 and second baffle 16 are rubber baffle, the bottom of first buffering step 11, the bottom of second buffering step 17, the bottom of first embedded buffer chamber 12 and the bottom of the embedded buffer chamber 18 of second all are equipped with rubber buffer layer, be equipped with weighing sensor 19 in the storage bin 4.

The surfaces of two sides of the upper end of the baffle 6 are made of rubber, when ore is thrown into the chute inlet 5, the ore falls onto the baffle 6 and is divided into a left ore and a right ore which respectively fall down to form a shunt, and the impact force is also buffered.

The first gate 9 and the second gate 15 are normally open at ordinary times, ores in the first horizontal roadway 7 are thrown into the first inclined chute 8, the first baffle 10 is movably connected with the upper end of the first inclined chute 8 through a hanging ring and a hinge, when the amount of ores entering the first inclined chute 8 is small, the ores can fall onto the first buffer step 11 due to the blocking of the first baffle 10, the outlet end at the bottom of the first buffer step 11 is lower than the other end, the ores slide into the main chute 1 due to gravity, and because the surface of the first baffle 10 and the bottom of the first buffer step 11 are both buffered by rubber layers, the ores cannot be damaged due to collision, when the amount of the ores entering the first inclined chute 8 is large, the ore at the moment is also large, the ores still fall onto the first buffer step 11 through the first baffle 10, and a part of the ores directly fall into the main chute 1, still partly ore because the impact force is too big, directly drop to in first embedded buffering chamber 12, because the bottom of first embedded buffering chamber 12 is equipped with the rubber buffer layer, can further alleviate the impact force of ore, and the open end of first embedded buffering chamber 12 bottom is lower than the other end, the ore that drops to first embedded buffering chamber 12 also can be because gravity landing to main drop shaft 1 in, so no matter the ore volume is big or little in first branch drop shaft 2, all can play fine buffering effect, second branch drop shaft 3 is the same with the reason of first branch drop shaft 2, no longer do too much repeated here, and the inner wall of first branch drop shaft 2, second branch drop shaft 3 and main drop shaft 1 all is equipped with manganese steel abrasionproof layer, protection drop shaft that can be fine prevents that the impact of ore from causing the damage to it.

When all ores fall into the ore storage bin 4, the weighing sensor 19 records the change of the ore amount in the ore storage bin 4 at any time, meanwhile, a worker can set an early warning value in advance, when the weighing sensor 19 indicates that the early warning value is reached, the weighing sensor 19 is connected with an early warning device, the early warning device is started and reminds an ore unloading operator in the first horizontal roadway 7 and the second horizontal roadway 14, the ore unloading operator manually starts and closes a first gate or a second gate switch, the ore unloading work of the first horizontal roadway 7 or the second horizontal roadway 14 is stopped, so that the ores in the main chute 1 are reduced and the ore is prevented from being blocked, the early warning device can be an alarm or an audible and visual alarm, the early warning value can be set to be multiple, for example, the ore storage bin 4 is 100% full, when 60% of the ore storage bin is reached, one of the alarms are started, when 70% of the two alarms are reached, when reaching first gate 9 of 90% self-closing and second gate 15, because the alarm is sounded, also need the manual work to close the gate, if do not close the gate under the condition of operating personnel error, then can start the self-closing gate function, prevent the swift current jam accident's emergence, protection life and property safety, this drop shaft with buffering protect function also can set up many branch's downward chutes, and many branch's downward chutes can also be in different sides in the homonymy of main drop shaft simultaneously, and its principle is the same.

Claims

1. The utility model provides a drop shaft with buffering protect function includes main drop shaft, first branch drop shaft and second branch drop shaft at least, the upper end of main drop shaft is equipped with the drop shaft entry, and the lower extreme is equipped with stores up the ore bin, and the centre is connected its characterized in that with first branch drop shaft and second branch drop shaft respectively: the lower end of the chute inlet is provided with a grinding column, the grinding column is connected to the inner wall of the main chute in a suspending way, the first branched chute at least comprises a first inclined chute and a first horizontal roadway, the joint of the first inclined chute and the first horizontal roadway is provided with a first gate, the upper end of the first inclined chute is provided with a first baffle, the lower end of the first inclined chute is provided with a first buffering step, the second branched chute at least comprises a second inclined chute and a second horizontal roadway, the joint of the second inclined chute and the second horizontal roadway is provided with a second gate, the upper end of the second inclined chute is provided with a second baffle, the lower end of the second inclined chute is provided with a second buffering step, the inner wall of the main chute is provided with a first embedded buffering chamber and a second embedded buffering chamber in a dividing way, the opening direction of the first buffering chamber faces to the outlet of the first inclined chute, the opening direction of the second embedded buffer chamber faces the outlet of the second inclined chute, and a weighing sensor is arranged in the ore storage bin.

2. The ore pass with buffer protection function according to claim 1, characterized in that: and manganese steel anti-abrasion layers are arranged on the inner walls of the main orepass, the first branch orepass and the second branch orepass.

3. The ore pass with buffer protection function according to claim 1, characterized in that: the grinding column is in a triangular shape with a narrow upper part and a wide lower part.

4. The ore pass with buffer protection function according to claim 1, characterized in that: the outlet ends of the bottom of the first buffer step and the bottom of the second buffer step are lower than the other ends of the first buffer step and the second buffer step, and the open ends of the bottom of the first embedded buffer chamber and the bottom of the second embedded buffer chamber are lower than the other ends of the first embedded buffer chamber and the second embedded buffer chamber.

5. The ore pass with buffer protection function according to claim 1, characterized in that: the first baffle and the second baffle are rubber baffles, and rubber buffer layers are arranged at the bottom of the first buffer step, the bottom of the second buffer step, the bottom of the first embedded buffer chamber and the bottom of the second embedded buffer chamber.

6. The ore pass with buffer protection function according to claim 1, characterized in that: early warning devices are arranged in the first horizontal roadway and the second horizontal roadway.