阅读说明：本技术 一种矿井斜巷行车安全防护系统及其布置方法 (Mine inclined roadway driving safety protection system and arrangement method thereof ) 是由 李茂庆 李盟洁 马啸 党文龙 卫琛浩 刘致远 刘彦军 史雅娜 赵君慧 汪佩 丁鑫 于 2021-01-16 设计创作，主要内容包括：本发明公开一种矿井斜巷行车安全防护系统及其布置方法,该布置方法结合主动防护和被动防护,根据矿用无轨胶轮车车辆作业的限速规定,模拟无轨胶轮车失速状态得到无轨胶轮车的行进距离,按照所述行进距离在巷道直道段内布置纳米吸能阻车器,在纳米吸能阻车器下方75±5m处布置纳米吸能缓冲装置,并且在巷道弯道段布置纳米吸能安全防护装置,得到矿井斜巷行车安全防护系统,该防护系统对失速车辆进行全面多方位防护,避免运输车辆失速时巷道壁刚性阻车对车辆和乘车人员造成不必要的伤害,确保无轨胶轮车与乘车人员的安全。(The invention discloses a mine inclined roadway driving safety protection system and an arrangement method thereof, wherein the arrangement method combines active protection and passive protection, the stall state of a trackless rubber-tyred vehicle is simulated according to the speed limit regulation of the mining trackless rubber-tyred vehicle operation to obtain the traveling distance of the trackless rubber-tyred vehicle, a nano energy-absorbing vehicle arrester is arranged in a straight roadway section according to the traveling distance, a nano energy-absorbing buffer device is arranged 75 +/-5 m below the nano energy-absorbing vehicle arrester, and a nano energy-absorbing safety protection device is arranged in a roadway curve section to obtain the mine inclined roadway driving safety protection system, the protection system carries out comprehensive multi-azimuth protection on the stalled vehicle, unnecessary damage to the vehicle and passengers caused by roadway wall rigid vehicle arrester when the vehicle is transported, and the safety of the trackless rubber-tyred vehicle and the passengers is ensured.)

1. A method for arranging a mine inclined roadway driving safety protection system is characterized by comprising the following steps:

s1, simulating the stalling state of the trackless rubber-tyred vehicle to obtain the travelling distance of the trackless rubber-tyred vehicle according to the speed limit regulation of the vehicle operation of the mining trackless rubber-tyred vehicle, and arranging the nano energy-absorbing car stoppers (1) in the straight section of the roadway at intervals according to the travelling distance;

s2, arranging a nano energy-absorbing buffer device (3) between two nano energy-absorbing car stoppers (1), wherein the nano energy-absorbing buffer device (3) is close to the previous nano energy-absorbing car stopper (1);

s3, arranging the nano energy-absorbing safety protection device (2) at the curve section of the roadway to obtain the mine inclined roadway driving safety protection system.

2. The method as claimed in claim 1, wherein in step S1, the speed limit rule is based on the coal industry standard MT/T989-2006.

3. The arrangement method of the mine inclined roadway driving safety protection system according to claim 1, wherein in step S2, the distance between the nano energy-absorbing buffer device (3) and the previous nano energy-absorbing car arrester (1) is 75 ± 5m, and when the distance between the nano energy-absorbing car arrester (1) and the entrance of the curve is less than 75m, the nano energy-absorbing buffer device (3) is not arranged.

4. The arrangement method of the mine inclined roadway driving safety protection system according to claim 1, wherein the nano energy-absorbing car arrester (1) is fixedly arranged in a chamber of a roadway, a slope support is arranged in the chamber, and the nano energy-absorbing car arrester (1) is placed on the slope support.

5. The arrangement method of the mine inclined roadway driving safety protection system according to claim 4, wherein the inclined bracket is a steel structural member, the lower edge of the inclined bracket faces the roadway direction, and the nano energy-absorbing car arrester (1) slides in the roadway from the inclined bracket when the trackless rubber-tired car stalls.

6. The arrangement method of the mine inclined roadway driving safety protection system according to claim 1, wherein the nano energy-absorbing car arrester (1) is vertically hung on a roadway side wall.

7. The arrangement method of the mine inclined roadway driving safety protection system according to claim 1, wherein the nano energy-absorbing buffer device (3) is arranged on the wall on the left side of the roadway in the descending direction of the vehicle, and the nano energy-absorbing buffer device (3) is a nano energy-absorbing cushion pad.

8. The arrangement method of the mine inclined roadway driving safety protection system according to claim 1, wherein the nanometer energy-absorbing safety protection device (2) is installed on the chamber wall on the right side of the roadway in the downward direction of the vehicle.

9. The arrangement method of the mine inclined roadway driving safety protection system according to claim 8, wherein the flatness of the chamber side wall is checked before the nano energy-absorbing safety protection device (2) is installed.

10. The mine inclined roadway driving safety protection system arranged according to the arrangement method of the mine inclined roadway driving safety protection system of any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of related mines, and particularly relates to a mine inclined roadway driving safety protection system and an arrangement method thereof.

Background

The trackless rubber-tyred vehicle is characterized by rapidness, high efficiency and flexibility, and is widely applied to auxiliary transportation of a nearly horizontal inclined shaft or a mine for adit mining, but because the vehicle may have the conditions of brake failure, gear slip, improper operation of drivers and the like in the driving process, the occurrence of 'car-running' accidents in the vehicle transportation process, particularly in inclined roadway transportation, is caused, the casualties are caused, and the safety production of the mine is influenced. Therefore, the protection facilities are integrally arranged according to the actual geographic position of the mine, the roadway distribution, the protection facility foundation and the like, and the popularization of the trackless transportation of the modern coal mine is necessary.

At present, although trackless rubber-tyred vehicles are widely used, few researches are made on the overall arrangement method of the stall protection facilities of the mine trackless rubber-tyred vehicles in the long slope section of an underground inclined roadway in China, most mines only have tires arranged on the walls of the roadway to serve as simple buffer devices, the protection effect of the simple devices is limited, and the vehicles are difficult to be effectively controlled when the trackless rubber-tyred vehicles are out of control.

Disclosure of Invention

The invention provides a mine inclined roadway driving safety protection system and an arrangement method thereof, aiming at solving the problem of 'car running' accidents caused by simple protection and no system protection arrangement method in the prior art, and solving the problem that when a trackless rubber-tyred car is out of control in speed during inclined shaft transportation, the rubber-tyred car is decelerated until the car stops by colliding with protection facilities arranged in different areas of a roadway to consume energy, so that unnecessary damage to the car and passengers due to rigid car blocking is avoided, and the safety of the passengers is met to the maximum extent.

In order to achieve the purpose, the invention provides the following technical scheme: an arrangement method of a mine inclined roadway driving safety protection system comprises the following steps:

s1, simulating the stalling state of the trackless rubber-tyred vehicle according to the speed limit regulation of the vehicle operation of the mining trackless rubber-tyred vehicle to obtain the travelling distance of the trackless rubber-tyred vehicle, and arranging the nano energy-absorbing car stoppers in the straight section of the roadway at intervals according to the travelling distance;

s2, arranging a nano energy-absorbing buffer device between two nano energy-absorbing car stoppers, wherein the nano energy-absorbing buffer device is close to the previous nano energy-absorbing car stopper;

s3, arranging a nano energy-absorbing safety protection device at the curve section of the roadway to obtain the mine inclined roadway driving safety protection system.

Further, in step S1, the speed limit is defined according to the coal industry standard MT/T989-2006.

Further, in step S2, the distance between the nano energy-absorbing buffer device and the previous nano energy-absorbing car arrester is 75 ± 5m, and the nano energy-absorbing buffer device is not arranged when the distance between the nano energy-absorbing car arrester and the entrance of the curve is less than 75 m.

Furthermore, the nano energy-absorbing car arrester is fixedly arranged in a chamber of a roadway, an inclined-plane support is arranged in the chamber, and the nano energy-absorbing car arrester is arranged on the inclined-plane support.

Furthermore, the inclined plane support is a steel structural member, one side of the inclined plane support, which is low, faces the roadway direction, and the nano energy-absorbing car arrester slides in the roadway from the inclined plane support when the trackless rubber-tired car stalls.

Furthermore, the nano energy-absorbing car arrester is vertically hung on the side wall of the roadway.

Furthermore, the nanometer energy-absorbing buffer device is arranged on the wall on the left side of the roadway in the descending direction of the vehicle, and the nanometer energy-absorbing buffer device is a nanometer energy-absorbing cushion pad.

Furthermore, the nano energy-absorbing safety protection device is arranged on the chamber wall on the right side of the roadway in the descending direction of the vehicle.

Furthermore, the flatness of the side wall of the chamber is checked before the nano energy-absorbing safety protection device is installed.

The invention also provides a mine inclined roadway driving safety protection system obtained by the arrangement method of the mine inclined roadway driving safety protection system.

Compared with the prior art, the invention has at least the following beneficial effects:

the invention provides a scientific, effective and reproducible mine inclined shaft safety protection system arrangement method for solving the arrangement problem of safety protection facilities of a coal mine inclined shaft, the arrangement method of the protection facilities is designed according to the actual condition of a roadway, the arrangement method of the protection facilities is determined by calculation according to the difference of the functional characteristics of the protection facilities, and a nano energy-absorbing car arrester, a nano energy-absorbing buffer device and a nano energy-absorbing safety protection device are arranged at multiple points in the roadway to comprehensively protect vehicles from stalling in multiple directions, so that unnecessary damage to the vehicles and passengers due to rigid car blocking of the roadway wall when the vehicles stall is transported is avoided, and the safety of trackless rubber-tyred vehicles and passengers is ensured.

In the coal mine inclined shaft safety protection system obtained by the arrangement method, the nano energy-absorbing car arrester can detect and actively slide down the ground at the first time when the rubber-tyred car stalls, so that the stalled car is effectively prevented from advancing; the nano energy-absorbing buffer device is used as a supplement of a car arrester, provides passive protection and can effectively absorb impact energy when a car stalls and impacts; the nano energy-absorbing safety protection device is arranged at the curve section to provide passive protection, a vehicle can effectively absorb impact energy when stalling and impacting at the curve, various conditions of the vehicle stalling in the inclined shaft of the coal mine can be met by combining active protection and passive protection, necessary active and passive protection measures can be provided within an acceptable limit speed range, and the vehicle safety is guaranteed to the greatest extent.

Drawings

FIG. 1 is a schematic diagram of a method for arranging a safety protection system for mine inclined roadway driving;

in the drawings: 1 is a nano energy-absorbing car arrester; 2 is a nano energy-absorbing safety protection device; and 3, a nano energy absorption buffer device.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

The arrangement of the mine inclined roadway driving protection facilities is based on the actual mine inclined shaft roadway construction conditions, and the purpose of protecting the driving safety of the trackless rubber-tyred vehicle to the maximum extent is achieved. According to different roadway conditions, the nanometer energy-absorbing safety protection device 2, the nanometer energy-absorbing buffer device 3 and the nanometer energy-absorbing car arrester 1 are arranged at different positions, so that safety protection is provided for underground driving. The nanometer energy-absorbing safety protection device 2 and the nanometer energy-absorbing buffer device 3 are passive protection facilities, and the nanometer energy-absorbing car arrester 1 is an active protection facility.

When the arrangement scheme of the safety protection equipment is planned, the arrangement scheme is determined by considering the limit condition according to the actual conditions of a mine and comprehensively considering through scientific calculation. In order to achieve the above object, the present invention adopts an arrangement method comprising:

1. the nano energy-absorbing car arrester 1 is used as an active protection facility, and the stall state of the trackless rubber-tyred car is simulated and calculated during arrangement. According to the speed limit regulation of the mining trackless rubber-tyred vehicle operation in the general technical conditions of the mining anti-explosion diesel engine trackless rubber-tyred vehicle with the coal industry standard MT/T989-2006, the running speed of the mining trackless rubber-tyred vehicle during material conveying cannot exceed 40Km/h, the running speed of the mining trackless rubber-tyred vehicle during personnel conveying cannot exceed 25Km/h, the maximum vehicle weight of the selected trackless rubber-tyred vehicle is 8000Kg, the normal speed is set to be 25Km/h, and the maximum speed is 70 Km/h. According to the design of the trackless rubber-tyred car inclined shaft of the coal mine enterprise at present, the gradient of the trackless rubber-tyred car inclined shaft is generally controlled within 6 degrees, and the gradient is set to be 5.5 degrees during calculation by combining with the extensive investigation of the coal mine enterprise. If the vehicle stalls during travel, the vehicle is accelerated against the vehicle's gravity at this time, ignoring ground friction, and is calculated as follows:

acceleration of vehicle glide: a ═ g × sin5.5 ° -0.939 m/s²

According to the formula: 2aS ═ V_t ²–V₀ ²

Unit conversion: 20Km/h is approximately equal to 6.94m/s, 75Km/h is approximately equal to 19.44m/s

Then

Wherein g is gravity acceleration with the unit of m/s; s is the distance traveled at stall, V₀Is the initial speed; v_tIs the maximum speed.

When the speed of the vehicle is increased from 25km/h to 70km/h when the vehicle stalls, the travel distance S is 176m, and the arrangement interval of the nano energy-absorbing car arrester 1 is set to 176 +/-15 m in consideration of allowance left in the arrangement in a roadway.

Preferably, the nano energy-absorbing car arrester 1 is fixedly arranged in a chamber of a roadway or on the side wall of the roadway, and the nano energy-absorbing car arrester 1 is preferentially arranged in the chamber because the chamber does not occupy the space of a travelling crane channel and the infrastructures such as electricity in the general chamber are complete.

The underground chamber is provided with an inclined plane support, the inclined plane support is a steel structural member, the lower side of the inclined plane support faces the direction of a roadway, the nano energy-absorbing car arrester 1 is placed on the inclined plane support, and when the trackless rubber-tired car stalls, the nano energy-absorbing car arrester 1 slides in the roadway from the inclined plane support.

Preferably, the nano energy-absorbing car arrester 1 can also be vertically hung on the side wall of the roadway and fixed through bolts.

2. The nanometer energy-absorbing buffer device 3 is arranged on the left side wall of the descending direction of the coal mine inclined shaft roadway vehicles and below the nanometer energy-absorbing car arrester 1 and used for passively absorbing energy when the vehicles are stalled in an impact mode, the nanometer energy-absorbing buffer device 3 is an important component of a three-in-one protection system of a mine inclined shaft roadway driving safety protection facility and is arranged on a straight roadway section, the nanometer energy-absorbing car arrester can independently play a protection role and can also be used as a supplement of the nanometer energy-absorbing car arrester, and the vehicle energy of stalled is passively absorbed when the car arrester fails in interception or cannot effectively intercept the car arrester.

Preferably, the nano energy absorption buffer device 3 can be used independently to protect roadway driving and roadways.

When the nano energy-absorbing buffer device 3 is arranged, on one hand, the anti-collision function is considered, on the other hand, the nano energy-absorbing buffer device also supplements the function of a nano energy-absorbing car arrester, and plays a role when the nano energy-absorbing car arrester 1 fails to intercept or stalls between the two car arresters, if the nano energy-absorbing car arrester 1 fails to intercept, the stalled car speed is further increased, so that the nano energy-absorbing buffer device is closer to the upper nano car arrester when being arranged.

In combination with the above reasons, the nano energy-absorbing buffer device 3 is arranged at a position 75 +/-5 m below the nano energy-absorbing car arrester 1 in consideration of the fact that certain floating range is required for adverse arrangement factors on the left side of a roadway in the descending direction of a car. The arrangement within the distance range can effectively and independently passively absorb the energy of the stalled rubber-tyred vehicle and can also effectively supplement the nano energy-absorbing car arrester 1.

Preferably, the nano energy-absorbing buffer device 3 is a nano energy-absorbing anti-collision cushion, and the nano energy-absorbing cushion is an anti-collision facility specially designed for a straight section of a coal mine inclined roadway, and can passively absorb collision energy when a roadvehicle in the roadway has a car sliding accident, so that the safety of personnel, the vehicle and the roadway is protected. The device is a facility which independently plays a role in protection, and simultaneously plays a good role in supplementing the functions of the nano energy-absorbing car arrester.

Preferably, the nanometer energy absorption buffer device 3 is arranged on the wall of the left side of the roadway in the descending direction of the trackless rubber-tyred vehicle, so that the impact accident of the vehicle on the left side of the roadway can be effectively dealt with.

3. The nano energy-absorbing safety protection device 2 is arranged at the curve section of a coal mine inclined shaft roadway, and can effectively and passively absorb impact energy and guide stalled vehicles.

Preferably, the nano energy-absorbing safety protection device 2 is installed on the wall on the right side of the roadway in the descending direction of the vehicle by wall hanging, and the flatness of the side wall is checked before installation. If the wall surface is smooth, the wall surface is installed through four links of positioning, punching, bar planting and hanging. If the flatness of the side wall is not good, the wall surface is firstly leveled.

The invention discloses a safety protection arrangement scheme for a coal mine inclined shaft, which comprises a nano energy-absorbing car arrester 1, a nano energy-absorbing safety protection device 22 and a nano energy-absorbing buffer device 3, and is shown in figure 1. When the device is installed, the nanometer energy-absorbing buffer device 3 and the nanometer energy-absorbing safety protection device 2 are both fixed on the wall of the roadway through bolts; the nano energy-absorbing car arrester 1 is arranged on a chamber or a wall according to the arrangement method, and the car arrester arranged on the chamber is placed on the inclined plane frame.

The arrangement of the protective facilities in the downhole safety protection facility system follows the following rules:

1) the nano energy-absorbing safety protection device 2 is arranged on the wall of the chamber on the right side of the roadway at the bend in the descending direction of the vehicle.

2) The nano energy-absorbing car arrester 1 is arranged on the right side of a straight section roadway in the descending direction of a car, and 1 car arrester is arranged at intervals of 176m +/-15 m. The nano energy-absorbing car arrester 1 is installed in two modes, one is arranged in the chamber, and the other is arranged on the chamber wall. The car arrester 1 sleeve is arranged at a distance of 176m +/-15 from the front car arrester and the rear car arrester, and is preferentially arranged in a chamber, the nano energy-absorbing car arrester arranged in the chamber is placed on an inclined plane support, the inclined plane support is generally a steel structural member and is processed into an inclined plane support with one higher end and one lower end, when the inclined plane support is placed, the lower end faces the direction of a roadway, the nano energy-absorbing car arrester is placed on the support along the inclined plane, and the nano energy-absorbing car arrester slides in the roadway along the inclined plane during action.

3) The nano energy-absorbing cushion is arranged on the wall of the left side of a roadway in the descending direction of a vehicle, and the position of the nano energy-absorbing cushion is arranged at the position of 75m +/-5 m behind the car arrester.

4) The nano energy-absorbing car arrester 1 is not provided with a nano energy-absorbing cushion pad when the distance from the entrance of the curve is less than 75 m.