CN111502746A

CN111502746A - Vertical shaft sand and stone lowering device

Info

Publication number: CN111502746A
Application number: CN202010335746.3A
Authority: CN
Inventors: 崔爱臣; 臧培刚; 刘晓亭; 靳志宇; 李长军; 魏朝飞
Original assignee: Thirty First Engineering Division Of China Coal First Construction Co ltd; China Coal No 1 Construction Co Ltd
Current assignee: Thirty First Engineering Division Of China Coal First Construction Co ltd; China Coal No 1 Construction Co Ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2020-08-07

Abstract

Device is transferred to vertical shaft grit material, by measurement formula mixer (1), band conveyer (2), unloading pipe (4) are constituteed, measurement formula mixer (1) sets up the lateral part at the vertical shaft pit shaft upper shed, unloading pipe (4) are fixed on the lateral wall of vertical shaft pit shaft, band conveyer (2) are established between mixer (1) and vertical shaft pit shaft, the feed end of band conveyer (2) is in the lower part of the discharge gate of mixer (1), the sand, the building stones that are thrown down from band conveyer (2) discharge end are accepted to the upper shed of unloading pipe (4). Compared with the prior art, the invention has the advantages of short transportation distance, low transportation cost, simple structure, safety, reliability and strong adaptability, is suitable for the second-third-stage engineering of the vertical shaft development mine under various geological conditions, and has obvious energy-saving effect.

Description

Vertical shaft sand and stone lowering device

Technical Field

The invention relates to a bulk cargo conveying device, in particular to a sand and stone lowering device for conveying sand and stone to a vertical shaft underground mine by utilizing the dead weight of the sand and the stone and sliding down of a blanking pipe.

Background

It is known that the quantity of underground roadway support materials in mine construction is huge, especially the dosage of sandstone in concrete (the dosage of sandstone supported by one roadway with the length of one kilometer reaches about two thousand square). At present, mine cars and rubber-tyred vehicles are generally adopted to be transported from the ground to the underground through cages, the transportation distance is long, and the transportation cost is high. Therefore, the design of the vertical shaft sand and stone material lowering device with short transportation distance and low transportation cost is the technical problem to be solved at present.

Disclosure of Invention

The invention aims to solve the technical problem of providing a vertical shaft sand and stone material lowering device which is short in transportation distance and low in transportation cost.

The technical scheme for solving the technical problem is as follows:

device is transferred to vertical shaft grit material comprises metering type mixer, band conveyer, unloading pipe, and the mixer setting is at the lateral part of vertical shaft top opening, and the unloading pipe is fixed on the lateral wall of vertical shaft, and the unloading pipe adopts the preparation of diameter 219mm thick wall steel pipe, and band conveyer establishes between metering type mixer and vertical shaft, and band conveyer's feed end is in the lower part of the discharge gate of mixer, and sand, the building stones that are thrown down from band conveyer discharge end are accepted to the top opening of unloading pipe. The metering mixer is an automatic batching device, and can complete automatic batching of materials such as sand, stone and the like according to the self-defined concrete mixing proportion, electronic weighing, microcomputer control and digital display. The belt conveyer has conveying belt width of 800mm and is linked with the metering mixer.

As a preferable scheme of the invention, a feed opening funnel is arranged at the upper end of the feed pipe.

As a preferable scheme of the invention, a rubber-tyred vehicle for transporting sand and stone materials is arranged in the underground roadway, and a hopper of the rubber-tyred vehicle can reach the lower part of a lower opening of the discharging pipe. The rubber-tyred vehicle is a mining rubber-tyred vehicle and can be equipped according to the requirements of mines.

As a preferable aspect of the present invention, a buffer device is installed at a lower port of the discharging pipe.

As a preferable scheme of the present invention, the feed opening funnel is formed by welding an upper bell-mouth-shaped taper pipe and a lower straight pipe, wherein the diameter of the straight pipe is the same as that of the feed pipe, a connecting flange is welded at the lower end of the straight pipe, a connecting flange which is the same as that of the lower end of the straight pipe is welded at the upper end of the feed pipe, and the feed opening funnel is connected with the feed pipe flange.

As a preferred scheme of the invention, the buffer device is a cylinder, a plurality of layers of buffer plates which are inclined downwards are welded on the inner wall of the cylinder, the diameter of the cylinder is larger than that of the blanking pipe, a section of conical pipe I with a small upper opening and a large lower opening is welded at the upper end of the cylinder, a straight pipe I with the same diameter as that of the blanking pipe is welded at the upper end of the conical pipe I, a flange I is welded at the upper end of the straight pipe I, a flange II is welded at the lower end of the blanking pipe, the upper end of the blanking pipe is connected with the buffer device through the flange I and the flange II, a section of conical pipe II with a large upper opening and a small lower opening is welded at the lower end of the cylinder, a section of straight pipe II with the same diameter as that of the blanking pipe is welded at the lower end of the conical pipe II, a flange III is welded at the.

As a preferred scheme of the invention, the barrel is divided into an upper section and a lower section, the lower end of the upper section is welded with a connecting flange, the upper end of the lower section is welded with a connecting flange, the upper section and the lower section of the barrel are connected through flanges, the buffer plates are four layers, two layers of the four layers of buffer plates are welded on the inner wall of the upper section of the barrel, and the two outer layers are welded on the inner wall of the lower section of the barrel.

As a preferable scheme of the invention, a filter screen is arranged between the connecting flange of the discharging pipe and the connecting flange of the hopper at the discharging opening.

The working process of the invention is as follows:

the metering type stirrer 1 stirs the sand and gravel after metering, the well-stirred mixture is unloaded to the belt conveyor 2 at the lower part and is transported to the feed opening 3 through the belt conveyor 2, the mixture slips to the underground buffering device 5 through the material conveying pipe 4, four buffering plates with the angles of 45 degrees are arranged in the buffering device, the mixture slips to the rubber-tyred vehicle 6 after the impact force of the mixture is reduced, and the mixture is transported to each underground construction site through the rubber-tyred vehicle 6.

Compared with the prior art, the invention has the advantages of short transportation distance, low transportation cost, simple structure, safety, reliability and strong adaptability, is suitable for the second-third-stage engineering of the vertical shaft development mine under various geological conditions, and has obvious energy-saving effect.

Drawings

FIG. 1 is a schematic structural view (cross-sectional view) of the present invention;

FIG. 2 is a schematic view of the manufacture of the piece 3 of FIG. 1;

FIG. 3 is a top view (schematic process view) of FIG. 2;

FIG. 4 is a schematic illustration of the screen of the present invention (process schematic);

FIG. 5 is a schematic view of the structure of the piece 5 of FIG. 1 (machining view);

FIG. 6 is a top view of FIG. 5 (only the attachment flange shown);

fig. 7 is a side view of fig. 5 (at the attachment flange-showing the reinforcing bars).

Detailed Description

As shown in the figure, device is transferred to vertical shaft grit material comprises metering type mixer 1, band conveyer 2, unloading pipe 4, and metering type mixer 1 sets up the lateral part at the vertical shaft pit shaft upper end, and unloading pipe 4 is fixed on the lateral wall of vertical shaft pit shaft, and band conveyer 2 establishes between mixer 1 and vertical shaft pit shaft, and band conveyer 2's feed end is in the lower part of the discharge gate of mixer 1, and sand, the grit of throwing down from band conveyer 2 discharge end are accepted to the upper end of unloading pipe 4.

A feed opening funnel 3 is arranged at the upper end of the feed pipe 4.

A rubber-tyred vehicle 6 for transporting sand and stone is arranged in the underground roadway 8, and a hopper of the rubber-tyred vehicle 6 can reach the lower opening lower part of the blanking pipe 4.

A buffer device 5 is arranged at the lower opening of the blanking pipe 4.

The feed opening funnel 3 is formed by welding a bell-mouth-shaped taper pipe at the upper part and a straight pipe at the lower part, wherein the diameter of the straight pipe is the same as that of the feed opening pipe 4, a connecting flange is welded at the lower end of the straight pipe, a connecting flange which is the same as that of the lower end of the straight pipe is welded at the upper end of the feed opening pipe 4, and the feed opening funnel 3 is in flange connection with the feed opening pipe 4.

Buffer 5 be the barrel, the welding has the buffer board of a plurality of layers of downward sloping on the inner wall of barrel, the diameter of barrel is greater than the diameter of unloading pipe 4, it has one section big end down's of going up toper pipe I to weld in the upper end of barrel, it has diameter and the straight tube I that unloading pipe 4 is the same to weld in the upper end of toper pipe I, it has flange I to weld in the upper end of straight tube I, it has flange II to weld at the lower extreme of unloading pipe 4, the upper end of unloading pipe 4 passes through flange I and flange II with buffer 5 and is connected, it has one section big end down's of going up toper pipe II to weld at the lower extreme of barrel, it has one section diameter and the straight tube II that unloading pipe 4 is the same to weld at the lower extreme of toper pipe II, it has flange III to weld at the lower extreme of straight tube II, be connected with.

The barrel be two sections from top to bottom, the lower extreme welding of upper segment has flange, the upper end welding of lower section has flange, the upper and lower two sections of barrel pass through flange joint, the buffer board be four layers, two-layer welding in four layers of buffer board is on the inner wall of upper segment barrel, two outer two-layer welding is on the inner wall of lower section barrel.

A filter screen is arranged between the connecting flange of the discharging pipe 4 and the connecting flange of the discharging opening funnel 3.

Claims

1. Device is transferred to vertical shaft grit material, by measurement formula mixer (1), band conveyer (2), unloading pipe (4) are constituteed, a serial communication port, measurement formula mixer (1) sets up the lateral part at the vertical shaft pit shaft upper end, unloading pipe (4) are fixed on the lateral wall of vertical shaft pit shaft, band conveyer (2) are established between mixer (1) and vertical shaft pit shaft, the feed end of band conveyer (2) is in the lower part of the discharge gate of mixer (1), sand, the building stones of throwing down from band conveyer (2) discharge end are accepted to the upper port of unloading pipe (4).

2. A shaft sandstone material lowering device according to claim 1, characterized in that a feed funnel (3) is provided at the upper end of the feed pipe (4).

3. The vertical shaft sand and stone lowering device as claimed in claim 1, characterized in that a rubber-tyred vehicle (6) for transporting sand and stone is arranged in the underground roadway (8), and the hopper of the rubber-tyred vehicle (6) can reach below the lower opening of the blanking pipe (4).

4. A vertical shaft gravel placement device according to claim 3, characterized in that a buffer device (5) is installed at the lower mouth of the blanking pipe (4).

5. The device for lowering the sandstone material in the vertical shaft according to claim 2, wherein the feed opening funnel (3) is formed by welding an upper bell-mouth-shaped taper pipe and a lower straight pipe, the diameter of the straight pipe is the same as that of the feed pipe (4), a connecting flange is welded at the lower end of the straight pipe, a connecting flange which is the same as that of the lower end of the straight pipe is welded at the upper end of the feed pipe (4), and the feed opening funnel (3) is in flange connection with the feed pipe (4).

6. The vertical shaft sand and stone lowering device as claimed in claim 4, wherein the buffer device (5) is a cylinder, a plurality of layers of downward-inclined buffer plates are welded on the inner wall of the cylinder, the diameter of the cylinder is larger than that of the blanking pipe (4), a section of conical pipe I with a small upper opening and a large lower opening is welded at the upper end of the cylinder, a straight pipe I with the same diameter as that of the blanking pipe (4) is welded at the upper end of the conical pipe I, a flange I is welded at the upper end of the straight pipe I, a flange II is welded at the lower end of the blanking pipe (4), the upper end of the blanking pipe (4) is connected with the buffer device (5) through the flange I and the flange II, a section of conical pipe II with a large upper opening and a small lower opening is welded at the lower end of the cylinder, a section of straight pipe II with the same diameter as that of the blanking pipe (4) is welded at the lower end of, the lower end of the straight pipe II is connected with a bent pipe with a flange at the upper end through a flange III.

7. The apparatus as claimed in claim 6, wherein the barrel is divided into two sections, the upper section is welded with a connecting flange at the lower end of the upper section, the lower section is welded with a connecting flange at the upper end of the lower section, the two sections are connected by flanges, the buffer plates are four layers, two layers of the four layers of buffer plates are welded on the inner wall of the barrel of the upper section, and the two outer layers are welded on the inner wall of the barrel of the lower section.

8. A device for lowering gravel in a vertical shaft according to claim 5, characterized in that a screen is arranged between the connecting flange of the feed pipe (4) and the connecting flange of the feed opening funnel (3).