Air regulation layout structure for subsection isolation series connection of auxiliary shaft and slope ramp

Abstract

The utility model belongs to the technical field of mine ventilation, and discloses an air regulation layout structure with an auxiliary shaft and a slope ramp connected in series in a segmented isolation mode, which comprises the auxiliary shaft, a west air shaft and an east air shaft which are communicated with each other, and the auxiliary shaft is communicated with the west air shaft sequentially through an upper slope ramp and an upper newly-added operation middle section. The auxiliary shaft is connected with the middle of the east air shaft through a mining finishing middle section, the auxiliary shaft is communicated with the bottom of the east air shaft through a lower operation middle section in sequence, and the end, away from the east air shaft, of the lower operation middle section and the end, away from the east air shaft, of the mining finishing middle section are communicated with a lower slope ramp. Regulation and control air doors are arranged in the upper slope ramp, the mining end middle section and the lower slope ramp. According to the ventilation system, existing ventilation facilities and mine engineering are fully utilized, the investment cost of a newly-added ventilation system is reduced, meanwhile, the ventilation problem of a newly-added area is solved, and the reliability and adaptability of the whole ventilation system are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mine ventilation technical field especially relates to a kind of auxiliary shaft and slope section isolation series connection's air distribution structure. BACKGROUND

[0002] Mine ventilation system plays a vital role in mine production, the main function is to provide fresh air to underground, dilute and discharge toxic and harmful gases and dust, to ensure that mine personnel work in a safe environment. With the continuous deepening of mining, the occurrence of ore body changes, the mining area is expanding, the new mining area is often in the blind area of the original ventilation system design, which leads to the ventilation effect cannot meet the needs of new area, thus bringing potential ventilation safety hazard.

[0003] Traditional mine ventilation design is usually based on the initial ore body condition, with the expansion of mining range, the original ventilation system often cannot effectively cover the new mining area. This problem is particularly prominent in complex mine environment, especially in the process of mine exploitation, there are many factors leading to ventilation imbalance, such as unreasonable ventilation line layout, uneven air distribution, increased ventilation resistance, etc. Due to the disconnection between the design of ventilation system and the actual mining progress, local ventilation shortage, air flow is not smooth, etc. may occur, which may seriously threaten the life safety of mine workers.

[0004] Therefore, how to flexibly adjust and optimize the air path layout and air distribution of ventilation system according to the actual mining progress and regional changes on the basis of existing ventilation network has become a technical problem in mine ventilation management. Reasonable ventilation scheduling and optimization not only can ensure the safe and efficient operation of ventilation system, but also can effectively reduce the incidence of mine accidents and improve the safety and economy of mine production. This requires that the mine ventilation system has good flexibility and adjustability, and at the same time needs the help of advanced ventilation technology means to carry out accurate real-time monitoring and control. CONTENT OF UTILITY MODEL

[0005] The utility model provides a kind of auxiliary shaft and slope section isolation series connection's air distribution structure to solve the prior art problems.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is:

[0007] The utility model provides a kind of auxiliary shaft and slope section isolation series' s air distribution layout structure, including the auxiliary shaft, western air shaft and eastern air shaft being connected, the auxiliary shaft is sequentially communicated with western air shaft by upper slope, upper new work section, the auxiliary shaft is connected with the middle part of eastern air shaft by mining end section, the auxiliary shaft is sequentially communicated with the bottom of eastern air shaft by lower work section, the one end of lower work section away from eastern air shaft is communicated with the one end of mining end section by lower slope, and regulating damper is arranged in upper slope, mining end section and lower slope.

[0008] As further improvement of the above technical solution:

[0009] The bottom of the upper slope and the top of the lower slope are communicated.

[0010] The regulating dampers on the upper slope and the lower slope are arranged close to the mining end section.

[0011] The regulating damper on the mining end section is arranged between the auxiliary shaft and the eastern air shaft, and close to the auxiliary shaft.

[0012] Airtight wall is arranged at the communication between the mining end section and the eastern air shaft.

[0013] A slope bypass is communicated with the upper slope, and the slope bypass bypasses the regulating damper on the upper slope.

[0014] An air distribution auxiliary fan is arranged in the slope bypass, and the air outlet of the air distribution auxiliary fan faces the upper new work section.

[0015] Two regulating dampers are arranged on the upper slope.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] By effectively connecting the auxiliary shaft, the western air shaft and the eastern air shaft in series, and arranging regulating dampers in the upper slope, the mining end section and the lower slope, the direction of air flow and the distribution of air volume can be accurately controlled.

[0018] The auxiliary shaft is connected with the western air shaft through the upper slope and the upper new work section, so as to ensure the ventilation demand of the new work area.

[0019] The auxiliary shaft is connected with the eastern air shaft through the mining end section, so as to ensure that the ventilation of the original work area is not affected.

[0020] The lower work section is designed, so that the fresh air of the auxiliary shaft can flow to the area effectively, and the air flow interference with the upper area is avoided.

[0021] The setting of the regulating air door further optimizes the air path, ensures flexible regulation and efficient operation of the ventilation system, and effectively improves the safety and efficiency of mine ventilation.

[0022] The layout makes full use of existing ventilation facilities and mine engineering, reduces the investment cost of the newly added ventilation system, solves the ventilation problem of the newly added area, and improves the reliability and adaptability of the overall ventilation system. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 is a structural schematic view of the air regulating layout structure of the sectional isolation and series connection of the auxiliary shaft and the ramp.

[0025] LEGEND:

[0026] 1, auxiliary shaft; 2, western air shaft; 3, eastern air shaft; 4, upper ramp; 41, regulating air door; 42, ramp bypass; 43, air regulating auxiliary fan; 5, upper newly added middle section; 6, mining end middle section; 61, airtight wall; 7, lower working middle section; 8, lower ramp. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the following will combine the drawings of the specification and the preferred embodiments to describe the present application more comprehensively and carefully, but the protection scope of the present application is not limited to the following specific embodiments.

[0028] Unless otherwise defined, all professional terms used in the following have the same meaning as generally understood by those skilled in the art. The professional terms used in this paper are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the present application.

[0029] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application can be purchased from the market or can be prepared by existing methods.

[0030] Embodiment: as Figure 1As shown, the ventilation layout structure of the auxiliary shaft and the ramp in this embodiment, which is segmented and isolated and connected in series, includes a connected auxiliary shaft 1, a western ventilation shaft 2, and an eastern ventilation shaft 3. The auxiliary shaft 1 is connected to the western ventilation shaft 2 in sequence through an upper ramp 4 and an upper newly added operating middle section 5. The auxiliary shaft 1 is connected to the middle of the eastern ventilation shaft 3 through a mining end middle section 6. The auxiliary shaft 1 is connected to the bottom of the eastern ventilation shaft 3 in sequence through a lower operating middle section 7. The end of the lower operating middle section 7 away from the eastern ventilation shaft 3 and the end of the mining end middle section 6 away from the eastern ventilation shaft 3 are connected to a lower ramp 8. The upper ramp 4, the mining end middle section 6, and the lower ramp 8 are all provided with a regulating damper 41. By effectively connecting the auxiliary shaft 1, the western ventilation shaft 2, and the eastern ventilation shaft 3 in series and providing regulating dampers 41 in the upper ramp 4, the mining end middle section 6, and the lower ramp 8, the direction of the airflow and the air volume distribution can be accurately controlled. The auxiliary shaft 1 is connected to the western air shaft 2 through the upper ramp 4 and the upper newly added operating section 5 to ensure the ventilation needs of the newly added operating area; and is connected to the eastern air shaft 3 through the mining end section 6 to ensure that the ventilation of the original operating area is not affected. The design of the lower operating section 7 allows the fresh air from the auxiliary shaft 1 to flow effectively to this area while avoiding interference with the wind flow in the upper area. The setting of the regulating damper 41 further optimizes the air path, ensures the flexible regulation and efficient operation of the ventilation system, and effectively improves the safety and efficiency of mine ventilation. In addition, this layout makes full use of existing ventilation facilities and mining projects, reduces the investment cost of the new ventilation system, solves the ventilation problems of the newly added areas, and improves the reliability and adaptability of the overall ventilation system.

[0031] In this embodiment, the bottom of the upper ramp 4 is connected to the top of the lower ramp 8, so that the airflow can flow more smoothly between the upper and lower working areas, optimize the ventilation path, and improve the ventilation efficiency of the system.

[0032] In this embodiment, the regulating dampers 41 on both the upper ramp 4 and the lower ramp 8 are located near the mining end middle section 6. This facilitates precise control of the airflow, ensures reasonable air volume distribution, minimizes airflow short-circuiting and waste, and improves the flexibility and reliability of the ventilation system.

[0033] In this embodiment, the regulating damper 41 on the middle section 6 at the end of mining is located between the auxiliary shaft 1 and the eastern ventilation shaft 3, and is located close to the auxiliary shaft 1. This effectively controls the direction of fresh air flow in the auxiliary shaft 1, ensuring that the air volume demand in each operating area of ​​the mine is precisely controlled and avoiding unnecessary air loss.

[0034] In this embodiment, a sealed wall 61 is installed at the connection between the mining end section 6 and the eastern ventilation shaft 3. This wall 61 effectively prevents airflow short-circuiting, ensuring that airflow flows along a predetermined path to the designated area, thereby improving the efficiency and safety of the ventilation system. The sealed wall separates the mining end section from the eastern and western ventilation shafts, preventing air leakage in the mining operation section and increasing ventilation in the lower operating section.

[0035] In this embodiment, the upper ramp 4 is connected to a ramp bypass 42, which bypasses the control damper 41 on the upper ramp 4. The ramp bypass 42 is designed to bypass the control damper 41, avoiding air flow obstruction when the control damper 41 is closed, ensuring the continuity and stability of the ventilation system.

[0036] In this embodiment, an auxiliary air-regulating fan 43 is installed within the ramp bypass 42, with its outlet facing the newly added upper working section 5. The presence of the auxiliary air-regulating fan 43 enhances airflow dynamics, ensuring that the ventilation needs of the newly added upper working section 5 are met, thereby improving overall ventilation efficiency. The ramp bypass 42 prevents fresh air drawn by the auxiliary air-regulating fan 43 from circulating, allowing the fresh air to be delivered to the newly added upper working section 5 via the serial path formed by the segmented isolation between the auxiliary shaft 1 and the upper ramp 4.

[0037] In this embodiment, two regulating dampers 41 are provided on the upper ramp 4. The provision of the two regulating dampers 41 makes the air flow control more flexible, and the air volume can be adjusted according to actual needs, thereby improving the adaptability and reliability of the system.

[0038] In the utility model, the auxiliary shaft 1 is located in the middle of the mining area and is connected to the ground surface, the mining end section 6, and the lower operating section 7; the western part of the upper newly added operating section 5 is connected to the eastern ventilation shaft 3, and the east side is connected to the upper opening of the upper ramp 4; the western part of the mining end section 6 is respectively connected to the lower opening of the upper ramp 4 and the upper opening of the lower ramp 8, the eastern part is connected to the western ventilation shaft 2, and the eastern part of the lower operating section 7 is connected to the western ventilation shaft 2.

[0039] The upper part of the auxiliary shaft 1 is directly connected to the surface, serving as the fresh air intake passage for the mine surface. Fresh air is introduced through the auxiliary shaft 1 to the mining end section 6 and the lower operating section 7. The operating waste air of the lower operating section 7 is discharged to the surface from the eastern air shaft 3.

[0040] A ramp bypass 42 is provided near the lower mouth of the upper ramp 4, and an air-regulating auxiliary fan 43 is installed in the ramp bypass 42. The air-regulating auxiliary fan 43 will lead the fresh air entering the mining end middle section 6 through the auxiliary shaft 1 to the upper ramp 4, and overcome the ventilation resistance of the upper ramp 4 under the power provided by the air-regulating auxiliary fan 43, and send the fresh air from the auxiliary shaft 1 to the upper newly added operating middle section 5, and under the action of the western main fan, the polluted air in the upper newly added operating middle section 5 is discharged from the eastern air shaft 3 to the surface.

[0041] Air regulating gates 41 are provided at the east side of the connection between the middle section 6 at the end of mining and the auxiliary shaft 1, and at the upper connection between the lower ramp 8 and the middle section 6 at the end of mining, cutting off the fresh air from the auxiliary shaft 1 to other passages in the middle section, isolating the auxiliary shaft 1 and the upper ramp 4 from other passages, forming a series passage of fresh air through the auxiliary shaft 1 to the middle section 6 at the end of mining and then to the upper ramp 4 to enter the upper newly added operation middle section 5.

[0042] At the same time, two regulating air doors 41 are arranged in the upper ramp 4 outside the ramp bypass 42 to prevent the fresh air drawn by the air-regulating auxiliary fan 43 from forming a circulation, so that the fresh air is sent to the upper newly added operation section 5 in the series passage formed by the segmented isolation of the auxiliary shaft 1 and the upper ramp 4.

[0043] An enclosed wall 61 is set at the connection point between the mining end section 6 and the western air shaft 2 to isolate the western air shaft 2 from other passages in the mining end section 6. The negative pressure of the eastern main fan is used to directly flow left and right to the lower operating section 7, so that part of the fresh wind energy of the auxiliary shaft 1 can directly enter the lower operating section 7, while meeting the production air needs of the upper newly added operating section 5 and the lower operating section 7.

[0044] The newly added operating middle section 5 at the upper part of the mine is located on the east side of the northern part of the mining area. It is not directly connected to the mine's surface fresh air intake auxiliary shaft 1. The newly added operating middle section 5 at the upper part is in the blind spot of the original ventilation system design and has no direct fresh air intake. The construction of new related air intake passages requires large investment and long cycle, which is not practical.

[0045] The present invention utilizes the existing tunnels in the original mine tunnel project, including the auxiliary shaft 1, the mining end section 6, and the upper ramp 4. By combining appropriate isolation and air conditioning measures, a series air inlet path is formed, which flows from fresh air to the auxiliary shaft 1, the mining end section 6, the upper ramp 4, and the newly added upper working section 5. This solves the air supply problem in the newly added upper working section 5 while maintaining the air supply to the production section 7.

[0046] In the present invention, the ventilation network in the original ventilation system is utilized to re-plan the layout of the original ventilation lines. Control dampers 41 are provided at the east side of the mining end section 6 connected to the auxiliary shaft 1 and at the upper opening of the lower ramp 8 connected to the mining end section 6, cutting off the fresh air from the auxiliary shaft 1 to other passages in the section, isolating the auxiliary shaft 1 and the upper ramp 4 from other passages to form a series passage, and utilizing the newly added air regulating facilities and projects to lead the fresh air from the auxiliary shaft 1 to the newly added upper operating section 5 without affecting the production air of the original lower operating section 7. This air regulating technology makes full use of the existing mine shaft and tunnel projects, solves the ventilation problem of the newly added area of ​​the mine, and reduces the investment in ventilation projects.

Claims

1. An air conditioning layout structure in which an auxiliary shaft and a ramp are segmented and isolated and connected in series, comprising an auxiliary shaft (1), a western air shaft (2) and an eastern air shaft (3) which are connected to each other, wherein the auxiliary shaft (1) is connected to the western air shaft (2) in sequence through an upper ramp (4) and an upper newly added operation middle section (5), the auxiliary shaft (1) is connected to the middle of the eastern air shaft (3) through a mining end middle section (6), and the auxiliary shaft (1) is connected to the bottom of the eastern air shaft (3) in sequence through a lower operation middle section (7), characterized in that: The end of the lower operating middle section (7) away from the eastern air shaft (3) and the end of the mining end middle section (6) away from the eastern air shaft (3) are connected to a lower ramp (8), and the upper ramp (4), the mining end middle section (6) and the lower ramp (8) are all provided with a regulating air door (41).

2. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series according to claim 1 is characterized in that: The bottom of the upper ramp (4) and the top of the lower ramp (8) are connected.

3. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series according to claim 2 is characterized in that: The regulating air doors (41) on the upper ramp (4) and the lower ramp (8) are both arranged close to the middle section (6) where mining ends.

4. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series according to claim 3 is characterized in that: The regulating air door (41) on the middle section (6) at the end of mining is arranged between the auxiliary shaft (1) and the eastern air shaft (3), and is arranged close to the auxiliary shaft (1).

5. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series according to claim 1 is characterized in that: A sealed wall (61) is provided at the connection point between the middle section (6) where the mining ends and the eastern ventilation shaft (3).

6. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series in sections according to any one of claims 1 to 5, characterized in that: The upper ramp (4) is connected to a ramp bypass (42), and the ramp bypass (42) bypasses the regulating damper (41) on the upper ramp (4).

7. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series in sections according to claim 6 is characterized in that: An air-regulating auxiliary fan (43) is provided in the ramp detour (42), and an air outlet of the air-regulating auxiliary fan (43) faces the newly added upper operation middle section (5).

8. The air conditioning layout structure with the auxiliary shaft and the ramp separated and connected in series in sections according to claim 6 is characterized in that: Two regulating air doors (41) are provided on the upper ramp (4).

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