CN220134020U

CN220134020U - Coal mining system for inclined roadway in coal mine production

Info

Publication number: CN220134020U
Application number: CN202321223891.8U
Authority: CN
Inventors: 王春磊; 肖宁; 樊楠
Original assignee: Shaanxi Coal Mining Hancheng Mining Co Ltd
Current assignee: Shaanxi Coal Mining Hancheng Mining Co Ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-12-05
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses a coal mining system for an inclined roadway in coal mine production, wherein the inclined roadway has an inclined angle of 5-25 degrees, and the coal mining system comprises: the belt conveyor, a plurality of hardening units, drainage unit includes: the drainage arc plate is positioned in the drainage groove, the two guide rods and the two guide rings are respectively sleeved on the two guide rods, the cleaning plate is positioned in the opening of the drainage arc plate, two ends of the straight line section of the cleaning plate are respectively fixedly connected with the two guide rings, the arc section of the cleaning plate extends downwards and into the opening of the drainage arc plate, one side of the cleaning rod, which is far away from the working surface, is provided with a positioning hole, one end of the cleaning rod extends into the positioning hole, and the other end of the cleaning rod is used for cleaning sludge and sundries in the drainage arc plate along the trend of the drainage arc plate after external force is applied; the utility model has unified standard, neat whole coal mining system, convenient management, simple dredging of the drainage unit, convenient operation, and the hardening unit avoids slipping due to wet sliding, thereby solving the existing potential safety hazard.

Description

Coal mining system for inclined roadway in coal mine production

Technical Field

The utility model belongs to the field of coal mine production, and particularly relates to a coal mining system for an inclined roadway in coal mine production.

Background

The inclined roadway is a roadway which is not communicated with the ground and has a short length, is used for pedestrians, ventilation, material conveying and the like, and in addition, coal sliding eyes and connecting roadways are sometimes inclined roadways. The coal face is a first production site of coal, has the characteristics of narrow operation space, more mechanical equipment, poor visual environment and high temperature, frequent safety accidents, seriously influences the safety management work of the whole coal mine, and is a key area in the coal mine safety management work.

Various facilities such as drainage facilities, installation belt conveyors, personnel walking channels and the like are required to be arranged in an inclined roadway of the existing coal mining system, so that the arrangement is disordered, cables are interwoven and ordered in the roadway, in addition, due to the fact that the drainage facilities are simple drainage ditches, after blockage, the drainage ditches are dug through shovels to be cleaned, the drainage ditches are different in depth and are not standard, and further, due to the fact that personnel walking is carried out on the inclined roadway ground directly, personnel fall easily due to wet sliding, and serious potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide a coal mining system for an inclined roadway in coal mine production, which aims to solve the problems that the existing coal mining system is messy, drainage facilities cannot be managed in a standardized mode, and personnel walk easily and fall down due to wet sliding.

The utility model adopts the following technical scheme: a coal mining system for an inclined roadway in coal mine production, the inclined roadway having an inclination angle of 5-25 degrees, comprising:

the belt conveyor is arranged along the trend of the roadway and close to the right side wall part of the roadway,

the hardening units are arranged along the trend of the roadway and close to the left side upper part of the roadway, each hardening unit is connected with each other in sequence and is arranged along the trend of a slope of the roadway, the lower sides of the hardening units are fixed on the ground of the slope, the upper sides of the hardening units are used for pedestrians to pass through, the pedestrians are prevented from slipping down when walking on the slope, and the pedestrians are further injured accidentally;

a drainage unit which is positioned on the ground of the roadway between the belt conveyor and the hardening unit and is positioned in a drainage groove which is arranged on the central line of the ground of the roadway and runs along the roadway, the drainage unit is used for draining water in the inclined roadway into a water storage bin at the bottom of the inclined roadway,

the drainage unit includes:

the drainage arc plate is provided with an upward opening and is positioned in the drainage groove, laid along the trend of the roadway, two sides and the bottom of the drainage arc plate are poured in the drainage groove through concrete,

two guide rods are arranged along the trend of the roadway and positioned above the drainage arc plate, the two ends of the guide rods are fixed on the roadway ground at the two sides of the drainage arc plate through fixing frames,

two guide rings respectively sleeved on the two guide rods,

the cleaning plate is semicircular, the straight line section of the cleaning plate faces upwards and is positioned in the opening of the drainage arc plate, two ends of the straight line section of the cleaning plate are fixedly connected with the two guide rings respectively, the arc section of the cleaning plate extends downwards and into the opening of the drainage arc plate, one side of the cleaning plate, which is far away from the working surface, is provided with a positioning hole,

and one end of the cleaning rod extends into the positioning hole, and the other end of the cleaning rod is used for cleaning sludge and sundries in the drainage arc plate along the trend of the drainage arc plate after the cleaning rod is subjected to external force.

Further, the method further comprises the following steps:

the upper ends of the first anchor rods are anchored on the top plate of the roadway and are arranged close to the left side upper part of the roadway, the lower ends of the first anchor rods are suspended with a high-pressure air pipe, a water guide pipe and a water return pipe, the high-pressure air pipe is used for providing high-pressure air for the working surface, the water guide pipe is used for providing a water source for the working surface, the water return pipe is used for discharging the water of the working surface,

the upper ends of the second anchor rods are anchored on the roadway top plate and are arranged close to the left side upper part of the roadway, the lower ends of the second anchor rods are suspended with cables,

the upper ends of the third anchor rods are anchored on the top plate of the roadway and are arranged close to the right side upper part of the roadway, the lower ends of the third anchor rods are suspended with a drainage pipe which is used for draining the gas of the working surface,

the upper ends of the fourth anchor rods are anchored on the top plate of the roadway and are arranged close to the right side wall part of the roadway, the lower ends of the fourth anchor rods are suspended with air cylinders which are used for conveying air to the working surface,

further, each hardening unit includes:

a front hardening rod arranged along the trend of the roadway slope,

the rear hardening rod is arranged along the trend of the roadway slope, is opposite to the front hardening rod and is arranged in parallel,

the hardening cross bars are perpendicular to the directions of the front hardening bar and the rear hardening bar, two ends of the hardening cross bars are respectively welded with the front hardening bar and the rear hardening bar, each hardening cross bar is sequentially and uniformly arranged along the direction of a roadway slope, two adjacent hardening cross bars are mutually matched with the front hardening bar and the rear hardening bar to form accommodating cavities, the accommodating cavities are uniformly distributed along the direction of the roadway slope,

the prefabricated hardening blocks are respectively positioned in the accommodating cavities and used for hardening the bottom of the roadway slope and filling the accommodating cavities so that pedestrians walk back and forth on the roadway slope.

Further, each hardening unit further includes:

two front baffle rings fixed at two ends of the front hardening bar, a front flange sleeved on the inner side of the front hardening bar and used for fixing the front flange when the front hardening bars of two adjacent hardening units are connected through the front flange,

the two rear baffle rings are fixed at two ends of the rear hardening rod, rear flanges are sleeved on the inner sides of the two rear baffle rings and used for fixing the rear flanges when the rear hardening rods of two adjacent hardening units are connected through the rear flanges, and then strip-shaped hardening units are formed.

The beneficial effects of the utility model are as follows:

1. according to the utility model, by arranging the plurality of hardening units, people walk on the hardening units, so that slipping caused by wet sliding is avoided, and the existing potential safety hazard is solved;

2. according to the utility model, accumulated water is discharged into the water storage bin at the bottom of the inclined roadway through the drainage unit, and sludge and sundries in the drainage arc plate are cleaned through the guide ring and the cleaning plate;

3. the hardening unit has the advantages of less workload, less labor consumption and fast construction progress, and the components are prefabricated, so that the components can be prefabricated on the ground in advance, and the construction progress is improved; compared with the steps which are normally poured by concrete, the prefabricated hardened block has good integrity, and as the front hardened rod, the rear hardened rod and the hardened cross rod are respectively arranged around the prefabricated hardened block, the prefabricated hardened block is surrounded and blocked by the front hardened rod, the rear hardened rod and the hardened cross rod, so that the prefabricated hardened block is firmer and safer;

4. the hardening unit ensures the safety of workers when walking on a slope, and is not easy to slip when the workers walk and carry materials, so that the construction safety of the workers is ensured, and the hardening unit keeps a straight line from top to bottom, thereby promoting the standardized work of safety production on site;

5. the utility model has unified standard, neat whole coal mining system, convenient management, simple dredging of the drainage unit, convenient operation, and the hardening unit avoids slipping due to wet sliding, thereby solving the existing potential safety hazard.

Drawings

FIG. 1 is a cross-sectional view of a roadway of the present utility model;

FIG. 2 is a schematic view of a drainage cell according to the present utility model;

FIG. 3 is a top view of the drainage cell of the present utility model;

fig. 4 is a schematic structural view of the hardening unit of the present utility model.

Wherein: 1. a front hardened stem; 2. post-hardening the rod; 3. hardening the cross bar; 4. prefabricating a hardened block; 5. a front baffle ring; 6. a rear baffle ring; 7. the slope is clamped into the plate; 8. a belt conveyor; 9. a hardening unit; 10. a drainage unit; 11. a drainage arcuate plate; 12. a guide rod; 13. a guide ring; 14. a cleaning plate; 15. a cleaning rod; 16. a first anchor rod; 17. a second anchor rod; 18. a third anchor rod; 19. a fourth anchor rod; 20. and positioning holes.

Detailed Description

The utility model will be described in detail below with reference to the drawings and the detailed description.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The utility model discloses a coal mining system for an inclined roadway in coal mine production, as shown in fig. 1-3, the inclined roadway has an inclined angle of 5-25 degrees, and the coal mining system comprises: a belt conveyor 8, a plurality of hardening units 9, and a drainage unit 10.

The belt conveyor 8 is along the lane trend, and is close to the right side group portion setting in lane, and a plurality of hardening units 9 are along the lane trend, and are close to the left side group portion setting in lane, every hardening unit 9 interconnect in proper order, and all set up along the lane slope trend, and the downside of each hardening unit 9 is all fixed subaerial at the slope, and its upside is used for the pedestrian to pass through, avoids slipping when walking on the slope, and then causes pedestrian's unexpected injury.

The drainage unit 10 is located on the roadway floor between the belt conveyor 8 and the hardening unit 9, and is located in a drainage groove which is formed in the middle line of the roadway floor and runs along the roadway, and the drainage unit 10 is used for draining water in the inclined roadway into a water storage bin at the bottom of the inclined roadway.

The drainage unit 10 includes: a drainage arc plate 11, two guide rods 12, two guide rings 13, a cleaning plate 14 and a cleaning rod 15.

The opening of the drainage arc plate 11 is upward, the drainage arc plate 11 is positioned in the drainage groove, the drainage arc plate 11 is paved along the roadway trend, and the two sides and the bottom of the drainage arc plate 11 are poured in the drainage groove through concrete.

The two guide rods 12 are arranged along the trend of the roadway and are positioned above the drainage arc plate 11, and the two ends of the two guide rods 12 are fixed on the ground of the roadway on the two sides of the drainage arc plate 11 through fixing frames. The two guide rings 13 are respectively sleeved on the two guide rods 12.

The cleaning plate 14 is semicircular, the straight line section of the cleaning plate 14 faces upwards, the cleaning plate 14 is positioned in the opening of the drainage arc plate 11, two ends of the straight line section of the cleaning plate 14 are fixedly connected with the two guide rings 13 respectively, the arc section of the cleaning plate 14 faces downwards and stretches into the opening of the drainage arc plate 11, and a positioning hole 20 is formed in one side, away from the working surface, of the cleaning plate 14.

One end of the cleaning rod 15 extends into the positioning hole 20, and the other end of the cleaning rod 15 is used for cleaning sludge and sundries in the drainage arc 11 along the trend of the drainage arc 11 after external force is applied.

The utility model also includes: a plurality of first anchors 16, a plurality of second anchors 17, a plurality of third anchors 18, a plurality of fourth anchors 19.

The upper ends of the first anchor rods 16 are anchored on the roadway top plate and are arranged close to the left side upper part of the roadway, the lower ends of the first anchor rods 16 are suspended with a high-pressure air pipe, a water guide pipe and a water return pipe, the high-pressure air pipe is used for providing high-pressure air for the working surface, the water guide pipe is used for providing a water source for the working surface, and the water return pipe is used for discharging water of the working surface.

The upper ends of the second anchor rods 17 are anchored on the roadway top plate and are close to the left side wall part of the roadway, cables are hung at the lower ends of the second anchor rods 17, the upper ends of the third anchor rods 18 are anchored on the roadway top plate and are close to the right side wall part of the roadway, a drainage pipe is hung at the lower ends of the third anchor rods 18 and is used for draining gas of a working surface, the upper ends of the fourth anchor rods 19 are anchored on the roadway top plate and are close to the right side wall part of the roadway, and air cylinders are hung at the lower ends of the fourth anchor rods 19 and are used for conveying air to the working surface.

Generally, the hardening units 9 of the present utility model can be laid with roadway slopes between 5 and 25 degrees, and slopes greater than 25 degrees are not suitable. Because the slope with smaller gradient is also relatively smaller, the height of each step is too large with the gradient larger than 25 degrees, so that the height of each step is also increased, and the steps are not easy to form during pouring.

As shown in fig. 4, each hardening unit 9 includes: a front stiffening rod 1, a rear stiffening rod 2, a plurality of stiffening cross bars 3, a plurality of prefabricated stiffening blocks 4. The front hardening bar 1 is arranged along the roadway slope trend, the rear hardening bar 2 is opposite to the front hardening bar 1 and is arranged in parallel, and the hardening cross bars 3 are perpendicular to the trend of the front hardening bar 1 and the rear hardening bar 2.

The two ends of a plurality of hardening cross rods 3 are respectively welded with the front hardening rod 1 and the rear hardening rod 2, the hardening cross rods 3 are sequentially and uniformly arranged along the trend of a roadway slope, two adjacent hardening cross rods 3 are mutually matched with the front hardening rod 1 and the rear hardening rod 2 to form accommodating cavities, and a plurality of accommodating cavities are uniformly arranged along the trend of the roadway slope.

A plurality of prefabricated hardening blocks 4 are respectively located in each accommodating cavity, and the plurality of prefabricated hardening blocks 4 are used for hardening the bottom of a roadway slope and filling the accommodating cavities, so that pedestrians walk back and forth on the roadway slope.

Each hardening unit 9 further includes: the two front baffle rings 5 and the two rear baffle rings 6 are arranged on the inner sides of the two front baffle rings 5, the two front baffle rings 5 are fixed at the two ends of the front hardening rod 1, the front flange is sleeved on the front hardening rod 1, and the two front baffle rings 5 are used for fixing the front flange when the front hardening rods 1 of two adjacent hardening units 9 are connected through the front flange.

The two rear baffle rings 6 are fixed at the two ends of the rear hardening rod 2, rear flanges are sleeved on the rear hardening rod 2 and the inner sides of the two rear baffle rings 6, and the two rear baffle rings 6 are used for fixing the rear flanges when the rear hardening rods 2 of two adjacent hardening units 9 are connected through the rear flanges, so that strip-shaped hardening units 9 are formed.

Each hardening unit 9 further includes: four slope card go into board 7, four slope card go into board 7 are located between return airway slope ground and the hardening unit 9, four slope card go into board 7 and fix respectively in the both ends downside of preceding hardening pole 1 and back hardening pole 2, four slope card go into the trend of board 7 and all perpendicular with preceding hardening pole 1 and back hardening pole 2, four slope card go into board 7 and are used for stretching into in the slope ground, play fixed effect to the hardening unit 9.

The construction method of the hardening unit 9 of the present utility model is composed of the following steps:

the method for manufacturing the hardening unit 9 on the ground comprises the following steps:

step 101: the front hardening bar 1 and the rear hardening bar 2 are placed opposite and parallel,

step 102: a plurality of hardening cross bars 3 are welded with the front hardening bar 1 and the rear hardening bar 2 in sequence from one end of the front hardening bar 1 and the rear hardening bar 2, so that the plurality of hardening cross bars 3 are uniformly distributed between the front hardening bar 1 and the rear hardening bar 2, so that the plurality of hardening cross bars 3 and the front hardening bar 1 and the rear hardening bar 2 are mutually matched to form a plurality of accommodating cavities, and so that the distance from the end of the hardening cross bars 3 near both ends of the front hardening bar 1 and the rear hardening bar 2 is equal to half of the distance between the two hardening cross bars 3,

step 103: two front flanges are sleeved at two ends of the front hardening rod 1, two rear flanges are sleeved at two ends of the rear hardening rod 2,

step 104: two front baffle rings 5 are welded at the two end parts of the front hardening rod 1, two rear baffle rings 6 are welded at the two end parts of the rear hardening rod 2,

step 105: welding ramp snap-in plates 7 at the lower sides of both end parts of the front hardening bar 1 and the rear hardening bar 2 to obtain hardening units 9;

the method for manufacturing the prefabricated hardened block 4 on the ground comprises the following steps:

step 201: the die with the wedge-shaped inner cavity is manufactured by using a wood plate, the wedge-shaped inner cavity is a hexahedron, the bottom surface of the die is horizontally arranged, the top surface of the die is obliquely arranged, the included angle between the top surface and the bottom surface of the die is equal to the inclined angle of the slope, the side surfaces of the die are vertical to the bottom surface,

step 202: filling the mould with concrete to obtain a prefabricated hardening block 4;

the method of preparing the surface hardening unit 9 downhole is:

step 301: the hardening units 9 are sequentially arranged along the trend of the slope of the return airway so that the slope clamping plate 7 is inserted into the slope ground for fixing,

step 302: the front flanges corresponding to the two adjacent hardening units 9 are connected with each other through bolts, the rear flanges corresponding to the two adjacent hardening units 9 are connected with each other through bolts, so that a combined cavity is formed between the end parts of the two adjacent hardening units 9, and a plurality of strip-shaped hardening units 9 are obtained,

step 303: the prefabricated hardening block 4 is respectively placed in the central positions of the accommodating cavity and the combined cavity, when the prefabricated hardening block 4 is placed, the inclination direction of the top surface of the prefabricated hardening block 4 is the same as the inclination direction of the slope,

step 304: gaps among the prefabricated hardening blocks 4, the hardening cross bars 3 on the two sides, the front hardening bars 1 and the rear hardening bars 2 are filled with concrete, so that the accommodating cavity and the combined cavity are filled, and the ground hardening unit 9 is obtained after solidification.

Example 1

The inclined coal roadway of the coal mining system at the lower side of the north return platform of a certain mine has the problems of messy arrangement, cable interweaving, messy order in the roadway, easy slipping and difficult walking due to no hardening facilities in the sidewalk, and different depths, nonstandard drainage ditches, easy blockage and difficult cleaning.

Through rectifying the inclined roadway of the existing coal mining system, firstly, a drainage groove is excavated in the roadway, a drainage unit 10 is installed, then a hardening unit 9 is constructed on the left side of the drainage unit 10, and finally, a first anchor rod 16, a second anchor rod 17, a third anchor rod 18 and a fourth anchor rod 19 are constructed to hang corresponding facilities respectively, so that the whole roadway is neat and standard, personnel walk safely, drainage is smooth, sundries and silt are well cleaned.

The construction of the drainage unit 10 is specifically described below:

firstly, a drainage groove is excavated, then a waste 325 drainage pipe is split from the middle along an axis to form two semicircular drainage arc plates 11, then the drainage arc plates 11 are sequentially paved in the drainage groove, two adjacent drainage arc plates 11 are connected by screws, the paving length is 160 meters, and concrete is poured on the two sides of the drainage arc plates 11 and the contact position with the ground after paving, so that a drainage unit 10 with higher standardized quality is formed.

The concrete details of the construction of the hardening unit 9 are as follows: the front and rear hardened bars 1 and 2 of each hardening unit 9 are 3 m long, the distance between the front and rear hardened bars 1 and 2 is 0.7 m, the distance between the two hardened cross bars 3 is 0.4 m, and the total of the work hardening units 953 are laid down from the north platform to the bottom of the slope along the slope of the hardening units 9, then the prefabricated hardened block 4 prepared by using two four materials is placed in the accommodating cavity and the combined cavity, and then the gaps between the prefabricated hardened block 4 and the hardened cross bars 3, the front hardened bar 1 and the rear hardened bar 2 on both sides are filled with concrete to form steps. Thus saving construction time and manual blanking cost and being capable of being reused. In the embodiment, the total of 8 workers in blanking personnel wages is 2400 yuan, the casting material is 3.68 cubic meters 1542 yuan, and the total of manpower and material resources cost is 7884 yuan according to two times of calculation by repeated utilization.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. A coal mining system for an inclined roadway in coal mine production, wherein the inclined roadway has an inclination angle of 5-25 degrees, comprising:

a belt conveyor (8) which is arranged along the direction of the roadway and is close to the right side wall part of the roadway,

the plurality of hardening units (9) are arranged along the trend of the roadway and close to the left side upper part of the roadway, each hardening unit (9) is sequentially connected with each other and is arranged along the trend of a roadway slope, the lower side of each hardening unit (9) is fixed on the slope ground, the upper side of each hardening unit is used for pedestrians to pass through, and the pedestrians are prevented from sliding down when walking on the slope, so that accidental injury of the pedestrians is caused;

a drainage unit (10) which is positioned on the ground of the roadway between the belt conveyor (8) and the hardening unit (9) and is positioned in a drainage groove which is arranged on the central line of the ground of the roadway and runs along the roadway, the drainage unit (10) is used for draining water in the inclined roadway into a water storage bin at the bottom of the inclined roadway,

the drainage unit (10) comprises:

a drainage arc plate (11) with an upward opening, which is positioned in the drainage groove, is paved along the trend of the roadway, the two sides and the bottom of the drainage arc plate are poured in the drainage groove through concrete,

two guide rods (12) are arranged along the trend of the roadway and are positioned above the drainage arc plate (11), two ends of the guide rods are fixed on the roadway ground at two sides of the drainage arc plate (11) through fixing frames,

two guide rings (13) respectively sleeved on the two guide rods (12),

the cleaning plate (14) is semicircular, the straight line section of the cleaning plate is upward and is positioned in the opening of the drainage arc plate (11), two ends of the straight line section of the cleaning plate are fixedly connected with the two guide rings (13) respectively, the arc section of the cleaning plate is downward and stretches into the opening of the drainage arc plate (11), one side of the cleaning plate, which is far away from the working surface, is provided with a positioning hole (20),

and one end of the cleaning rod (15) stretches into the positioning hole (20), and the other end of the cleaning rod is used for cleaning sludge and sundries in the drainage arc plate (11) along the trend of the drainage arc plate (11) after the cleaning rod is subjected to external force.

2. A coal mining system for a tilt roadway in coal mine production as claimed in claim 1, further comprising:

a plurality of first anchor rods (16) with the upper ends anchored on the tunnel top plate and arranged near the left side upper part of the tunnel, and the lower ends suspended with a high-pressure air pipe, a water guide pipe and a water return pipe, wherein the high-pressure air pipe is used for providing high-pressure air for the working surface, the water guide pipe is used for providing water source for the working surface, the water return pipe is used for discharging the water of the working surface,

a plurality of second anchor rods (17) with upper ends anchored on the tunnel roof and arranged near the left side upper part of the tunnel and lower ends hung with cables,

a plurality of third anchor rods (18) with upper ends anchored on the tunnel top plate and arranged near the right side upper part of the tunnel, and lower ends suspended with a drainage pipe for draining the gas of the working surface,

and the upper ends of the fourth anchor rods (19) are anchored on the roadway top plate and are close to the right side wall part of the roadway, and the lower ends of the fourth anchor rods are suspended with air cylinders which are used for conveying air to the working surface.

3. A coal mining system for a tilt roadway in coal mine production according to claim 1, wherein each hardening unit (9) comprises:

a front hardening rod (1) is arranged along the trend of the roadway slope,

the rear hardening rod (2) is arranged along the trend of the roadway slope, is opposite to the front hardening rod (1) and is arranged in parallel,

a plurality of hardening cross rods (3) perpendicular to the directions of the front hardening rod (1) and the rear hardening rod (2), two ends of the hardening cross rods are respectively welded with the front hardening rod (1) and the rear hardening rod (2), each hardening cross rod (3) is sequentially and uniformly arranged along the direction of a roadway slope, two adjacent hardening cross rods (3) are mutually matched with the front hardening rod (1) and the rear hardening rod (2) to form a containing cavity, a plurality of containing cavities are uniformly distributed along the direction of the roadway slope,

and the prefabricated hardening blocks (4) are respectively positioned in the accommodating cavities and used for hardening the bottom of the roadway slope and filling the accommodating cavities so that pedestrians walk back and forth on the roadway slope.

4. A coal mining system for a tilt roadway in coal mine production according to claim 3, wherein each of the hardening units (9) further comprises:

two front baffle rings (5) fixed at two ends of the front hardening rod (1), a front flange sleeved on the front hardening rod (1) and at the inner sides of the two front baffle rings (5) and used for fixing the front flange when the front hardening rods (1) of two adjacent hardening units (9) are connected through the front flange,

the two rear baffle rings (6) are fixed at the two ends of the rear hardening rod (2), rear flanges are sleeved on the rear hardening rod (2) and on the inner sides of the two rear baffle rings (6), and are used for fixing the rear flanges when the rear hardening rods (2) of two adjacent hardening units (9) are connected through the rear flanges, so that strip-shaped hardening units (9) are formed.