Mining light explosion-proof distribution box

Abstract

The utility model discloses a mining light explosion-proof distribution box, which comprises an explosion-proof box main body, the explosion-proof box main body is composed of a bottom explosion-proof plate and four side explosion-proof plates, the top end of the explosion-proof box main body is open, and the periphery and the bottom surface of the explosion-proof box main body are closed; an explosion-proof box cover plate is detachably installed at the top end of the explosion-proof box body, the explosion-proof box cover plate, the bottom explosion-proof plate and the side face explosion-proof plates are all three-layer structure composite plates, and the three-layer structure composite plates are sequentially an inner plate, a honeycomb core clamping plate and an outer plate from inside to outside. The inner plate, the honeycomb core clamping plate and the outer plate are all made of stainless steel materials. The mining light explosion-proof distribution box not only can meet the explosion-proof requirement of the mining distribution box under a coal mine, but also can be easily carried, the carrying strength of workers is effectively reduced, and the underground working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground coal mine devices, relates to a mine explosion-proof distribution box, and particularly relates to a lightweight mine explosion-proof distribution box. Background Art

[0002] The mine explosion-proof distribution box underground in coal mines needs to meet the explosion-proof requirements. Currently, the commonly used explosion-proof shell generally uses thick carbon steel plates to be milled into designed plates, and then the finished products are spliced through a welding process. The explosion-proof distribution box manufactured by the above process is very heavy. In underground geophysical prospecting and other constructions, it is extremely difficult to move it by one person alone. Often, the joint efforts of multiple people are required to move the power explosion-proof shell, resulting in high labor intensity of the staff and low work efficiency. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a lightweight mine explosion-proof distribution box, which solves the technical problems in the prior art that due to the excessive weight of the mine explosion-proof distribution box, the labor intensity of workers is high and the work efficiency is low.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve:

[0005] A lightweight mine explosion-proof distribution box includes an explosion-proof box main body. The explosion-proof box main body is composed of a bottom explosion-proof plate and four side explosion-proof plates. The top of the explosion-proof box main body is open and the periphery and bottom are both closed; an explosion-proof box cover is detachably installed on the top of the explosion-proof box main body.

[0006] The explosion-proof box cover, the bottom explosion-proof plate and the side explosion-proof plates are all three-layer composite plates. The three-layer composite plate sequentially includes an inner plate, a honeycomb core splint and an outer plate from the inside to the outside.

[0007] The enclosed space surrounded by the explosion-proof box cover, the bottom explosion-proof plate and the four side explosion-proof plates is a distribution box for placing mine equipment; a plurality of wire conduits are fixedly arranged on the side explosion-proof plate on one longitudinal side of the explosion-proof box main body. The wire conduits are communicated with the distribution box and are used for arranging the connecting wires of the mine equipment.

[0008] Four flange rib plates are fixedly arranged on the top of the explosion-proof box main body. The four flange rib plates are fixedly connected to form a shell mouth flange. The flange rib plates are fixed on the outer surface of the top of the side explosion-proof plate. A plurality of explosion-proof box main body bolt holes are opened on the flange rib plates; a cover plate rib is coated on the edge of the explosion-proof box cover. A plurality of explosion-proof box top plate bolt holes are opened on the explosion-proof box cover and the cover plate rib; bolts are installed in the explosion-proof box main body bolt holes and the explosion-proof box top plate bolt holes.

[0009] The utility model also has the following technical features:

[0010] The honeycomb core sandwich panel described above is composed of several honeycomb cores with a hollow hexagonal prism structure. The side length of the cell of the honeycomb core is 5 mm, the height of the honeycomb core is 8 mm, and the wall thickness of the honeycomb core is 0.25 mm.

[0011] The thickness of the inner plate and the outer plate described above is 2.5 mm.

[0012] An ear handle ring is fixedly arranged on one lateral side of the explosion-proof box body.

[0013] Compared with the prior art, the present utility model has the following technical effects:

[0014] The mine-used lightweight explosion-proof distribution box of the present utility model is made of a three-layer structural composite board, which is composed of an inner plate, a honeycomb core sandwich panel and an outer plate made of stainless steel material. It can not only meet the explosion-proof requirements of the mine-used distribution box in coal mines, but also be easily carried, effectively reducing the handling intensity of workers and improving the working efficiency underground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is an exploded view of the mine-used lightweight explosion-proof distribution box.

[0016] Figure 2 FIG. is a schematic diagram of the overall structure of the mine-used lightweight explosion-proof distribution box.

[0017] Figure 3 FIG. is a schematic diagram of the three-layer structural composite board.

[0018] Figure 4 FIG. is a schematic diagram of the bottom explosion-proof plate.

[0019] Figure 5 FIG. is a schematic diagram of the side explosion-proof plate.

[0020] Figure 6 FIG. is a schematic diagram of the explosion-proof box cover.

[0021] Figure 7 FIG. is a schematic diagram of the shell flange.

[0022] Figure 8 FIG. is a schematic diagram of the internal structure of the mine-used lightweight explosion-proof distribution box.

[0023] The meanings of the various reference numerals in the figure are as follows: 1-explosion-proof box body, 2-explosion-proof box cover, 3-wire duct, 4-flange rib plate, 5-bolt hole of explosion-proof box body, 6-cover rib plate, 7-bolt hole of explosion-proof box top plate, 8-bolt, 9-ear handle ring, 10-explosion-proof plate connection seam, 11-top weld seam.

[0024] 101-bottom explosion-proof plate, 102-side explosion-proof plate, 103-distribution box.

[0025] 201 - Inner plate, 202 - Honeycomb core splint, 203 - Outer plate.

[0026] The following further elaborates on the specific content of the present utility model in conjunction with embodiments. Specific embodiments

[0027] It should be noted that all components and equipment in the present utility model, without special instructions, are components and equipment known in the art. For example: Mining equipment is conventional instruments, power supplies, etc. known in the prior art for underground coal mine exploration operations.

[0028] The following presents specific embodiments of the present utility model. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solutions of this application fall within the protection scope of the present utility model.

[0029] Embodiment:

[0030] This embodiment provides a lightweight explosion-proof distribution box for mining, as Figure 1 and Figure 2 shown, including an explosion-proof box body 1, which is composed of a bottom explosion-proof plate 101 and four side explosion-proof plates 102. The top of the explosion-proof box body 1 is open and its perimeter and bottom are all enclosed; an explosion-proof box cover 2 is detachably installed on the top of the explosion-proof box body 1.

[0031] As Figures 3 to 6 shown, the explosion-proof box cover 2, the bottom explosion-proof plate 101, and the side explosion-proof plates 102 are all three-layer composite plates, and the three-layer composite plates are, from the inside to the outside, an inner plate 201, a honeycomb core splint 202, and an outer plate 203.

[0032] As Figure 1 and Figure 2 shown, the enclosed space formed by the explosion-proof box cover 2, the bottom explosion-proof plate 101, and the four side explosion-proof plates 102 is a distribution box 103 for placing mining equipment; a plurality of wire conduits 3 are fixedly arranged on the side explosion-proof plate 102 on one longitudinal side of the explosion-proof box body 1, and the wire conduits 3 are communicated with the distribution box 103 for arranging connection wires of mining equipment.

[0033] As Figure 5 and Figure 6As shown in the figure, four flange rib plates 4 are fixedly arranged at the top end of the flameproof box body 1. The four flange rib plates 4 are fixedly connected to form a shell mouth flange. The flange rib plates 4 are fixed on the outer surface of the top end of the side flameproof plate 102. A plurality of flameproof box body bolt holes 5 are formed in the flange rib plates 4; a cover plate rib plate 6 is coated on the edge of the flameproof box cover 2. A plurality of flameproof box top plate bolt holes 7 are formed in the flameproof box cover 2 and the cover plate rib plate 6; bolts 8 are installed in the flameproof box body bolt holes 5 and the flameproof box top plate bolt holes 7.

[0034] In this embodiment, the inner plate 201, the honeycomb core sandwich plate 202 and the outer plate 203 are all made of stainless steel to ensure the overall strength of the mine lightweight flameproof distribution box.

[0035] In this embodiment, through the flameproof box body bolt holes 5, the flameproof box top plate bolt holes 7 and the bolts 8, the detachable fixed installation of the flameproof box body 1 and the flameproof box cover 2 is realized. The bolt connection is hermetically connected without adding any gaskets or sealing rings. After the tight connection, a tight fit and airtightness are achieved between the flameproof box cover 2 and the flameproof box body 1.

[0036] As a specific scheme of this embodiment, as Figure 3 shown, the honeycomb core sandwich plate 202 is composed of a plurality of honeycomb cores with a hollow hexagonal prism structure. The side length of the cell of the honeycomb core is 5 mm, the height of the honeycomb core is 8 mm, and the wall thickness of the honeycomb core is 0.25 mm; the thicknesses of the inner plate 201 and the outer plate 203 are 2.5 mm.

[0037] As a specific scheme of this embodiment, as Figure 1 and Figure 2 shown, an ear lifting handle ring 9 is fixedly arranged on the lateral side of the flameproof box body 1. The ear lifting handle ring 9 is convenient for manual back-and-forth movement.

[0038] As a specific scheme of this embodiment, as Figure 8 shown, the joint of the bottom flameproof plate 101 and the side flameproof plate 102 is a flameproof plate connection seam 10, and the flameproof plate connection seam 10 is a right-angle weld structure.

[0039] As a specific scheme of this embodiment, as Figure 8 shown, the joint of the shell mouth flange and the side flameproof plate 102 is two top welds 11 on the inner and outer sides, and the top welds 11 are smooth and flat without defects.

[0040] As a specific scheme of this embodiment, the inner surface and the outer surface of the mine lightweight flameproof distribution box can be evenly coated with a flame-retardant coating for protection.

[0041] The utility model uses the vacuum liquid phase diffusion process for welding. This process has good welding quality, high connection strength of welded parts, and can achieve batch production. The process flow is as follows: selection of auxiliary materials - cleaning of the welded surface of the base material - assembly - preheating - welding - post-weld heat preservation - cleaning. The specific process is as follows:

[0042] First, select appropriate diffusion auxiliary materials. The principle is that they should be similar to the physical and chemical properties of the base material to facilitate the occurrence of diffusion.

[0043] Second, weld four flange rib plates 4 in a "mouth" - shaped structure to complete the prefabrication of the shell mouth flange. Nest the honeycomb core splint 202 between the inner plate 201 and the outer plate 203 to complete the prefabrication of the bottom explosion - proof plate 101 and the side explosion - proof plate 102. The bottom explosion - proof plate 101 reserves the installation and welding position for the side explosion - proof plate 102, and one of the side explosion - proof plates 102 reserves the welding position for the wire - passing pipe 3. Nest the honeycomb core splint 202 between the inner plate 201 and the outer plate 203, then nest the assembled three - layer composite plate in the cover plate rib 6, and then weld four flange rib plates 4 in a "mouth" - shaped structure to complete the prefabrication of the explosion - proof box cover 2.

[0044] Third, clean the welded surface of the workpiece, then assemble and weld the above - mentioned components as required, apply a suitable pressure between 10 - 20 MPa to the assembled parts and place them in the mining equipment for preparation of welding.

[0045] Fourth, start the mining equipment to reach a vacuum state, preheat the workpiece, and perform welding heat preservation when the temperature reaches 900 - 1200 °C; after welding, cool it in the furnace to room temperature, and finally take out the welded part and clean the welds that need to be cleaned.

[0046] In this embodiment, the above - mentioned vacuum liquid phase diffusion welding process can achieve the batch production of lightweight composite explosion - proof plates. The products have high precision, low batch - production unit cost, effectively simplify the complex milling process of the existing conventional explosion - proof shell plates, and have high production efficiency.

[0047] The working process of the utility model is as follows:

[0048] Place the mining equipment to be protected in the distribution box 103, and pass the mining equipment connection wire through the wire - passing pipe 3; then place the explosion - proof box cover 2 welded with the cover plate rib 6 on the top of the explosion - proof box body 1 welded with the flange rib 4, and screw the bolt 8 into the explosion - proof box body bolt hole 5 and the explosion - proof box top plate bolt hole 7 to complete the fastening installation.

Claims

1. A lightweight flameproof distribution box for mining, comprising a flameproof box body (1), the flameproof box body (1) consisting of a bottom flameproof plate (101) and four side flameproof plates (102), the top of the flameproof box body (1) is open and the surroundings and bottom are closed; a flameproof box cover plate (2) is detachably mounted on the top of the flameproof box body (1); the characteristics are: The flameproof box cover plate (2), the bottom flameproof plate (101) and the side flameproof plate (102) are all three-layer structure composite plates, and the three-layer structure composite plates are, from inside to outside, an inner plate (201), a honeycomb core sandwich plate (202) and an outer plate (203); The enclosed space enclosed by the flameproof box cover (2), the bottom flameproof plate (101) and the four side flameproof plates (102) is a distribution box (103), and the distribution box (103) is used to place mining equipment; a plurality of wiring tubes (3) are fixedly arranged on the side flameproof plates (102) on one longitudinal side of the flameproof box body (1), and the wiring tubes (3) are connected to the distribution box (103), and the wiring tubes (3) are used to set the connection lines of the mining equipment; Four flange ribs (4) are fixedly arranged at the top of the explosion-proof box body (1), and the four flange ribs (4) are fixedly connected to form a shell flange. The flange ribs (4) are fixed to the outer surface of the top of the side explosion-proof plate (102), and a plurality of explosion-proof box body bolt holes (5) are opened on the flange ribs (4); the edge of the explosion-proof box cover plate (2) is covered with a cover plate rib (6), and a plurality of explosion-proof box top plate bolt holes (7) are opened on the explosion-proof box cover plate (2) and the cover plate rib (6); bolts (8) are installed in the explosion-proof box body bolt holes (5) and the explosion-proof box top plate bolt holes (7).

2. The lightweight flameproof distribution box for mining as claimed in claim 1, characterized in that: The honeycomb core splint (202) is composed of a plurality of honeycomb cores with hollow hexagonal prism structures, the cell side length of the honeycomb core is 5 mm, the height of the honeycomb core is 8 mm, and the wall thickness of the honeycomb core is 0.25 mm.

3. The lightweight flameproof distribution box for mining as claimed in claim 1, characterized in that: The thickness of the inner plate (201) and the outer plate (203) is 2.5 mm.

4. The lightweight flameproof distribution box for mining as claimed in claim 1, characterized in that: An ear handle ring (9) is fixedly arranged on one lateral side of the flameproof box body (1).

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