Multipurpose combined adjusting air door in mine environment

Abstract

The utility model belongs to the field of mine air doors, and relates to a multipurpose combined adjusting air door in a mine environment, which comprises a door frame fixed on a roadway rock wall of a mine. The double-layer door is arranged on the door frame; the double-layer door comprises a sealing door on the outer layer and a grid door on the inner layer; the closed door is jointly composed of four door leaves, and the four door leaves are symmetrically installed on the door frame in the mode that two door leaves are arranged on one side and two door leaves are arranged on the other side. Wherein each door leaf is fixed on the door frame through a pair of door bolts; the grid door is jointly composed of four door leaves, and the four door leaves are symmetrically installed on the door frame in the mode that two door leaves are arranged on one side and two door leaves are arranged on the other side. Wherein each door leaf is fixed on the door frame through a pair of door bolts. Through the four iron sheet air doors, ventilation control is flexible, the effect is good, and the situation that door opening and closing are strenuous due to the large roadway section or the large air speed is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of mine air doors, and relates to a multi-purpose combined regulating air door in a mine environment. Background Art

[0002] Due to the increase in the scale of mining, the wide and criss-crossing layout of mining tunnels and the complex flow direction of ventilation systems, it is becoming increasingly important to regulate and constrain the wind direction, flow rate and air volume requirements of different functions and locations in underground mines to varying degrees.

[0003] At present, underground mines generally use flexible integral iron dampers, iron fence doors and rigid masonry walls to control ventilation systems. However, these doors have certain limitations in controlling ventilation systems.

[0004] When the flexible integral iron sheet closed damper is used to adjust ventilation, it can only be adjusted by fully closing, half opening and fully opening, and the ventilation control effect is poor; when the door is open, it cannot effectively prevent the entry and exit of irrelevant mining equipment and personnel, and the opening and closing of the door is difficult to control when the tunnel section is large or the wind speed is high, and even the blasting shock wave can easily cause damage to it. When the rigid masonry damper is used to adjust ventilation, it can only be adjusted through the reserved damper or wind window, which may affect the normal passage of mining vehicles and personnel. The objective fact is that the construction period is long, the difficulty is high and the ventilation adjustment effect is poor.

[0005] The existing dampers have relatively simple functions and uses. Usually, flexible integral iron sheet closed doors with double-open single-layer doors are installed. The ventilation flow and wind speed are adjusted by opening and closing the single and double door leaves. The ventilation control effect is poor. It also cannot effectively prevent the entry and exit of irrelevant mining vehicles and personnel. It is more difficult to open and close the door when the tunnel section is large or the wind speed is high. Even the blasting shock wave can easily cause the damper to be damaged. As a result, the maintenance is difficult, the investment cost is high, and the efficiency is low. It also leads to the disorder of the entire or partial ventilation system of the mine, the untimely supply of fresh air, and serious impacts on the construction environment and personnel health. Utility Model Content

[0006] The present application provides a multi-purpose combined regulating damper in a mine environment, which controls ventilation flow and wind speed with the assistance of double-layer doors and mesh doors, directly reflecting the multiple uses of one door. It can not only better adjust and control the ventilation system, but also facilitate the prevention of restrictions on the entry and exit of irrelevant mining equipment and personnel, which is of great value to improving the management and control of mine ventilation systems.

[0007] In order to achieve the above technical objectives, the technical solution adopted by the present application is a multi-purpose combined regulating air door in a mine environment, comprising a door frame, the door frame being fixed to the rock wall of the tunnel of the mine; and also comprising a double-layer door arranged on the door frame; the double-layer door comprising an outer closed door and an inner mesh door;

[0008] The closed door is composed of four doors, which are symmetrically installed on the door frame in the manner of two doors on one side and two doors on the other side; wherein each door is fixed to the door frame by a pair of door latches;

[0009] The grid door is composed of four doors, which are symmetrically installed on the door frame in the manner of two doors on one side and two doors on the other side; wherein each door is fixed to the door frame by a pair of door latches.

[0010] As an improved technical solution of the present application, the door frame is fixed by anchor rods or pre-embedded peripheral masonry.

[0011] As an improved technical solution of the present application, the closed door is a closed door made of iron sheet material.

[0012] As an improved technical solution of the present application, the grid door is a grid door formed by steel bars.

[0013] As an improved technical solution of the present application, the closed door is an outward-opening door, and the grid door is an inward-opening door; by definition, the "outside" in the outward-opening door and the "inside" in the inward-opening door are relative nouns, which only indicate that the closed door and the grid door are opened in two different directions, and the two opening directions will not affect each other.

[0014] As an improved technical solution of the present application, each door of the closed door is fixed to the transverse door frame by a pair of door latches, that is, the two doors located at the top are fixed to the upper transverse door frame by door latches, and the two doors located at the bottom are fixed to the lower transverse door frame by door latches.

[0015] As an improved technical solution of the present application, the two doors at the same height in the closed door are symmetrically installed, and a pair of door latches are additionally installed in the middle.

[0016] As an improved technical solution of the present application, the two doors at the same height in the grid door are symmetrically installed, and a pair of door latches are additionally installed in the middle.

[0017] Beneficial Effects

[0018] The double-layer door of the present application can be arranged and installed at the required position in the mine shaft tunnel and chamber, and the inner steel mesh door can be fully utilized to form an airflow channel. The double doors can allow mining vehicles to pass when they are fully open, and can also prevent unrelated mining vehicles and personnel from passing when they are closed. The outer iron sheet closed door can be opened alone when the inner steel sheet mesh door is closed. There are four iron sheet air dampers in total, which can be opened and closed independently of each other, and can be used to adjust the ventilation area through constraints under different conditions, and control the ventilation flow and wind speed.

[0019] The present application provides flexible and effective ventilation control through four iron dampers, reduces the difficulty of opening and closing doors due to large tunnel cross-section or high wind speed, avoids damage to the dampers due to blasting shock waves, and thus reduces maintenance and costs, regulates the supply of fresh air for the entire or local ventilation system of the mine, protects the construction working environment and personnel health, is also suitable for the management and control of important equipment and substation chambers, and serves as an important control channel for heat dissipation, which is of great value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the inner grid door structure;

[0021] Figure 2 Schematic diagram of the outer closed door structure;

[0022] In the figure, 1. door frame; 2. mesh door; 3. hinge; 4. angle steel; 5. door latch; 6. horizontal door latch; 7. angle steel edge sealing; 8. closed door; 9. side stile. DETAILED DESCRIPTION

[0023] The technical solution of the present application is clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Definition: The door frame is a square structure, consisting of a transverse door frame and a longitudinal door frame. The transverse direction is parallel to the tunnel ground, and the longitudinal direction is perpendicular to the tunnel ground.

[0025] The stile is the frame of the door frame, which is fixed to the alley.

[0026] A multi-purpose combined regulating damper in a mine environment comprises a door frame 1, wherein the door frame 1 is fixed to the rock wall of the tunnel of the mine; and further comprises a double-layer door arranged on the door frame 1; the double-layer door comprises an outer closed door 8 and an inner mesh door 2.

[0027] The focus of this application is on Figure 2 As shown, the closed door 8 is composed of four doors, and the four doors are symmetrically installed on the door frame in the manner of two doors on one side and two doors on the other side; wherein each door is fixed to the door frame 1 by a pair of door latches 5. The effect achieved is that each door can be opened separately; the two doors on one side are connected to the door frame on one side by two hinges 3; the two doors on the other side are connected to the door frame on the other side by two hinges 3. Here, one side and the other side can be understood as the left or right side of the door frame, and left and right are directional words and relative nouns, and do not limit the structure of the present application.

[0028] like Figure 1As shown, the grid door 2 is composed of four doors, and the four doors are symmetrically installed on the door frame 1 in the manner of two doors on one side and two doors on the other side; wherein each door is fixed to the door frame through a pair of door latches 5, and the two doors on each side are arranged up and down and can be opened and closed independently. The effect achieved is that each door can be opened separately; the two doors on one side are connected to the door frame on one side through two hinges 3 respectively; the two doors on the other side are connected to the door frame on the other side through two hinges 3 respectively. Here, one side and the other side can be understood as the left or right side of the door frame, and left and right are directional words and relative nouns, and do not limit the structure of this application.

[0029] Since the closed door 8 and the mesh door 2 are both installed on the door frame using multiple hinges 3 and locked on the door frame 1 through the door latch 5, the closed door 8 and the mesh door 2 can be opened separately, and different doors can be opened separately.

[0030] In order to ensure that the door frame 1 can withstand the strong wind in the mine during use, the door frame 1 is fixed by anchor rods or pre-embedded peripheral masonry.

[0031] In order to ensure the sealing performance, the closed door 8 is made of iron sheet material.

[0032] In order to provide local ventilation, the mesh door 2 is a mesh door formed by steel bars.

[0033] In order to make the closed door 8 and the grid door 2 independent of each other, the closed door 8 is an outward-opening door, and the grid door 2 is an inward-opening door; by definition, the outside in the outward-opening door and the inside in the inward-opening door are relative terms, which only mean that the closed door 8 and the grid door 2 are opened in two different directions, and the two opening methods in different directions are opening methods that will not affect each other.

[0034] Each door of the closed door 8 is fixed to the transverse door frame through a pair of door latches 5, that is, the two doors located at the top are fixed to the upper transverse door frame through the door latches 5, and the two doors located at the bottom are fixed to the lower transverse door frame through the door latches 5.

[0035] In order to ensure the overall stability, the two doors at the same height in the closed door 8 are symmetrically installed, and a pair of door latches are additionally installed in the middle to lock the two doors at the same height. The pair of door latches is a transverse door latch 6.

[0036] In order to ensure the overall stability, the two doors at the same height in the grid door 2 are symmetrically installed, and a pair of door latches are installed in the middle to lock the two doors at the same height. The pair of door latches is a horizontal door latch 6.

[0037] Example 1

[0038] A multi-purpose combined regulating damper in a mine environment is composed of a door frame 1, a door leaf and a hinge 3, and a door latch. It is assembled using common channel steel, angle steel, iron sheet and steel mesh, and is installed and fixed on a rock wall or pre-buried in bricks or concrete. Then, ventilation constraints and adjustments can be made to tunnels and chambers.

[0039] like Figure 1 , Figure 2 As shown, the following is an example of an embodiment of the adjustable combined damper by pre-embedded in masonry in conjunction with the accompanying drawings, and the specific construction steps are as follows:

[0040] 1. The door frame around the combined damper is made of channel steel, and the web of the channel steel is assembled and welded inward to form a door frame 1. The door frame 1 is installed on the tunnel rock wall and embedded and fixed through the outer masonry, which is firm and reliable. In order to facilitate the door frame 1 to be fixed to the rock wall of the mine, the upper door frame head (top, that is, the upper horizontal door frame) and the lower door frame bottom (bottom, that is, the lower horizontal door frame) of the door frame are 500mm longer than the net width of the door (that is, 250mm long at both ends), and the two ends are 250mm long and embedded in the masonry. The columns on both sides are vertically welded between the upper door frame head and the lower door frame bottom, and the net width size is guaranteed; the net width of the door is adjusted according to the traffic equipment and its needs, and the door frame channel steel model is adjusted to ensure a safe and reliable span.

[0041] 2. A double-layer door is arranged in the door frame, the inner layer is a mesh door 2 made of reinforced steel, and the outer layer is a closed door 1 made of iron sheet.

[0042] 3. The inner layer of reinforced mesh door is an outward opening double-leaf door. Each door is spliced ​​with the side bar 9 through the L50×50×5mm angle steel. The opening of the angle steel 4 is spliced ​​outward, with two groups in total. Inside the angle steel side bar, a Φ6.5mm mesh of 100×100mm interwoven steel mesh is welded, and the overlap is 20mm between each other and welded and fixed. The mesh holes of the mesh door 2 form a wind flow channel. One side of the door frame 1 is connected and fixed to the vertical door frame and the inner layer of reinforced mesh door side bar 9 angle steel by upper and lower door hinges. The other side is sealed with an additional L30×30×4mm angle steel edge 7 and a pair of door latches are installed on the upper and lower sides to fix it to the upper / lower horizontal door frame; the two doors are installed symmetrically, and a pair of door latches are installed in the middle. The fully open state allows mining vehicles to pass through, and the closed state can also prevent irrelevant mining vehicles and personnel from passing through.

[0043] 4. The outer iron sheet closed door is an outward-opening door, which is attached to the corresponding outer side of the inner steel mesh door side stile and can be opened independently when the inner steel mesh door is closed. There are four iron sheet air dampers in total, which are opened and closed independently of each other and are used to adjust the air volume and wind speed in the ventilation system tunnel by controlling the area under different conditions.

[0044] 5. The outer layer of the iron sheet closed door, each door is assembled with side stiles inward through the L30×30×4mm angle steel opening, and is welded with 2mm thick iron sheet inside for closure; each iron sheet closed door is connected and fixed to the side stile of the steel mesh door close to the door frame by two pairs of upper and lower door hinges, and the opposite side is connected by a pair of door latches installed on the side stile 9 and the increased angle steel edge sealing 7, respectively, to facilitate the adjustment of the number of opening and closing of the iron sheet closed door, the restriction and adjustment of the ventilation area, and the control of the ventilation flow and wind speed.

[0045] Its working principle is:

[0046] A multi-purpose combined regulating air door in a mine environment, wherein the door frames on all sides are formed by assembling and welding channel steels, and the door frames are fixed to the rock wall of the tunnel by anchor rods or pre-embedded outer masonry, which is firm and reliable; a double-layer door is arranged in the door frame, wherein the inner layer is a reinforced mesh door, and the outer layer is an iron sheet closed door; the inner layer reinforced mesh door is an outward-opening double-leaf door, and each door is spliced ​​with side bars by angle steels, and there are two groups of upper and lower doors, and a steel mesh is welded inside to form an airflow channel; one side of the door frame is fixed to the vertical door frame by connecting and connecting two pairs of door hinges on the upper and lower sides, and the other side is sealed with an additional angle steel and a pair of door latches are installed on the upper and lower sides to fix it to the upper and lower horizontal door frames; the two doors are installed symmetrically, and a pair of door latches are installed in the middle; mining vehicles can pass through in the fully-open state, and they can also be prevented from passing through in the closed state. The outer iron sheet closed door is an outward opening door, which is connected to the corresponding outer side of the inner steel mesh door and can be opened independently when the inner steel mesh door is closed. There are four iron sheet air doors in total, which are independent of each other and are used to adjust the air volume and wind speed in the ventilation system tunnel under different conditions; the outer iron sheet closed door, each door is assembled with side bars by angle steel, and is welded with iron sheets inside to be closed. Each iron sheet closed door is connected and fixed to the side bar of the steel mesh door close to the door frame by upper and lower door hinges, and the opposite side is connected to the increased angle steel edge sealing 7 by installing a pair of door latches on the upper and lower sides of the side bars, which is convenient for adjusting the number of iron sheet closed door switches, restricting and adjusting the ventilation area, and controlling the ventilation flow and wind speed.

Claims

1. A multi-purpose combined damper in a mine environment, comprising a door frame, wherein the door frame is fixed to the rock wall of the mine tunnel; characterized in that: It also includes a double-layer door arranged on the door frame; the double-layer door includes an outer closed door and an inner mesh door; The closed door is composed of four doors, which are symmetrically installed on the door frame in the manner of two doors on one side and two doors on the other side; wherein each door is fixed to the door frame by a pair of door latches; The grid door is composed of four doors, which are symmetrically installed on the door frame in the manner of two doors on one side and two doors on the other side; wherein each door is fixed to the door frame by a pair of door latches.

2. A multi-purpose combined damper in a mine environment according to claim 1, characterized in that: The door frame is fixed by anchor rods or pre-embedded peripheral masonry.

3. The multi-purpose combined damper in a mine environment according to claim 1, characterized in that: The closed door is made of sheet iron.

4. The multi-purpose combined damper in a mine environment according to claim 1, characterized in that: The grid door is a grid door formed by steel bars.

5. The multi-purpose combined damper in a mine environment according to claim 1, characterized in that: The enclosed door is an outward-opening door, and the mesh door is an inward-opening door; by definition, the "outside" in the outward-opening door and the "inside" in the inward-opening door are relative nouns, which only indicate that the enclosed door and the mesh door are opened in two different directions, and the two opening methods in different directions will not affect each other.

6. The multi-purpose combined damper in a mine environment according to claim 1, characterized in that: Each door of the closed door is fixed to the transverse door frame through a pair of door latches, that is, the two doors located at the top are fixed to the transverse door frame at the top through the door latches, and the two doors located at the bottom are fixed to the transverse door frame at the bottom through the door latches.

7. The multi-purpose combined damper in a mine environment according to claim 1, characterized in that: Two doors at the same height in the closed door are symmetrically installed, and a pair of door latches are additionally installed in the middle.

8. The multi-purpose combined damper in a mine environment according to claim 1, characterized in that: Two doors at the same height in the grid door are symmetrically installed, and a pair of door latches are additionally installed in the middle.

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