CN102271476B

CN102271476B - Explosionproof operation box

Info

Publication number: CN102271476B
Application number: CN201110194781.9A
Authority: CN
Inventors: 王锟; 周连佺
Original assignee: XUZHOU ZHONGBU MINING EQUIPMENT CO Ltd
Current assignee: XUZHOU ZHONGBU MINING EQUIPMENT CO Ltd
Priority date: 2011-07-07
Filing date: 2011-07-07
Publication date: 2015-07-01
Anticipated expiration: 2031-07-07
Also published as: CN102271476A

Abstract

The invention discloses an explosionproof operation box, relating to the technical field of explosion proofing in coal mines. The operation box comprises a box body and a box cover, wherein the box body is divided into upper and lower independent explosionproof cavities; the upper part is a main cavity for installing electrical parts and the lower part is a wiring cavity; the box cover is divided into a main cavity box cover and a wiring cavity cover board; two lifting hooks are installed on the front of the main cavity box cover; buttons and indicator lights are installed inside the main cavity box cover; a lifting hook is installed on the front of the wiring cavity cover board; an lead-in device and grounding angle steel are installed on the lower side of the wiring cavity cover board; the joint surface of the box body and the box cover is explosionproof; the box body and the box cover are connected by bolts; and hinges are installed at the side to realize upper and lower quick door opening structures. The operation box has the advantages of low manufacturing cost, compact structure and safe explosion proofing, and is flexible to move, simple and convenient to operate.

Description

A kind of Explosionproof operation box

Technical field

The present invention relates to underground coal mine explosion-proof technology field, specifically a kind of Explosionproof operation box.

Background technology

There is a large amount of combustible medium in underground coal mine, the factor that set off an explosion is a lot, but mainly electric equipment is in operation the spark and temperature that produce, and the control box therefore for down-hole must have explosion-proof.And have the explosion-proof types such as intrinsic safety type, flame-proof type and INCREASEDSAFETY for the control box in underground coal mine explosive gas atmosphere at present, because flame proof fail safe is relatively high, therefore applying maximum is Explosionproof operation box.Explosionproof operation box is generally made up of housing, interconnect, introducing device, closure plate etc.Needing often unpacks detects or has the casing observing device also to need chamber door and Transparent Parts.

Summary of the invention

In order to reach flame proof requirement, the invention provides a kind of Explosionproof operation box.When device interior is blasted, explosion-insulation surface can prevent spark and temperature from causing flammable medium blast around; Shell can bear inner blast pressure and not cause damaging, and detonation propagation can be prevented again to outside shell.Even if therefore when its device interior breaks down, as on fire, short circuit, blast etc., also explosion hazard can be completely cut off at device interior.

The present invention realizes with following technical scheme: a kind of Explosionproof operation box, and it comprises casing, is divided into upper and lower two independently explosion-proof chambers in casing; Top is the main chamber for installing electrical component, and bottom is wire connection cavity; There is main chamber case lid above main chamber, in the case lid of main chamber, be welded with connecting plate; Connecting plate is fixed with pressing plate; And centre is lined with backing plate; Suspension hook is equipped with on both sides, case lid front, main chamber, and button, indicator light are equipped with in inside; Have wire connection cavity cover plate above wire connection cavity, a suspension hook is housed outside wire connection cavity cover plate, introducing device and ground connection angle steel are equipped with in wire connection cavity downside; Casing and main chamber case lid, wire connection cavity cover plate are connected by the folding of side and realize upper and lower quick opening structure; The faying face of casing and main chamber case lid, wire connection cavity cover plate is explosion-proof faying face, outside the case lid of main chamber, is provided with the switch contact lever for control switch.

Advantage of the present invention is: low cost of manufacture, compact conformation, safety anti-explosive, feature mobile flexible and easy and simple to handle, thus meets the work requirements of user more broadly.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the invention will be further described.

Fig. 1 is front view of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

In figure: 1, casing; 2, main chamber case lid; 3, suspension hook; 4, wire connection cavity cover plate; 5, folding; 6, introducing device; 7, ground connection angle steel; 8, riser; 9, pressing plate; 10, guide rail; 11, main chamber; 12, base plate; 13, binding post fixed head; 14, flame proof plate I; 15, wire connection cavity; 16, connecting plate; 17, backing plate; 18, clear glass; 19, rubber gasket; 20, switch contact lever; 21, main chamber panel; 22, flame proof plate II; 23, flame proof plate III.

Embodiment

As shown in Figure 1, Figure 2 and Figure 3, a kind of flame proof control box housing is the rectangle stuffing box with Plate Welding, is made up of casing 1 and main chamber case lid 2 and wire connection cavity cover plate 4.Together with casing 1 and main chamber case lid 2 are bolted with wire connection cavity cover plate 4.Casing 1 is the cavity on the flanged limit be welded into by riser 8, flame proof plate III 23 and base plate 12.Bottom in casing 1 is provided with binding post fixed head 13 and flame proof plate I 14, and binding post fixed head 13 and flame proof plate I 14 will be divided into upper and lower two independently explosion-proof chambers in casing.Top is main chamber 11, for installing electrical component; Main chamber 11 is inner; In main chamber 11, on base plate 12, be fixed with guide rail 10, guide rail 10 is fixed by screws on base plate 12.Bottom is wire connection cavity 15, and introducing device 6 and ground connection angle steel 7 are equipped with in wire connection cavity 15 downside; Ground connection angle steel 7 is connected with ground wire by bolt.Main chamber case lid 2 is tightly connected by bolt and casing 1; Main chamber case lid 2 is made up of flame proof plate II 22 and middle main chamber panel 21 outwardly; Be welded with suspension hook 3 outside main chamber case lid 2, inside is welded with connecting plate 16, fluted on connecting plate 16, and groove is built with rubber gasket 19 and clear glass 18; Observed the operating state of indicator light in control cabinet by clear glass 18, be convenient to staff's record and analyze investigation fault; Pressing plate 9 is together with being equipped with backing plate 27 in the middle of connecting plate 16 and be bolted on; Clear glass 18 and rubber gasket 19 are compressed thus make casing reach the effect of sealing by bolt by pressing plate 9.Outside main chamber case lid 2, switch contact lever 20 is installed, control switch can be carried out by switch contact lever 20.Wire connection cavity cover plate 4 is tightly connected by bolt and casing 1, is welded with suspension hook 3 outside wire connection cavity cover plate 4.Casing 1 realizes upper and lower quick opening structure with main chamber case lid 2 and wire connection cavity cover plate 4 by the folding 5 of side; Casing 1 is explosion-proof faying face with the faying face of main chamber case lid 2 and wire connection cavity cover plate 4, and explosion suppresion surface need reach seal request through accurate processing and acid washing phosphorization process.

Claims

1. an Explosionproof operation box, is characterized in that: comprise casing (1), is divided into upper and lower two independently explosion-proof chambers in casing; Top is the main chamber (11) for installing electrical component, and bottom is wire connection cavity (15); Main top of chamber has main chamber case lid (2), is welded with connecting plate (16) in main chamber case lid (2); Connecting plate (16) is fixed with pressing plate (9), centre is lined with backing plate (17); Suspension hook (3) is equipped with on case lid (2) both sides, front, main chamber, and button, indicator light are equipped with in inside; Wire connection cavity (15) has wire connection cavity cover plate (4) above, and a suspension hook (3) is equipped with in wire connection cavity cover plate (4) outside, and introducing device (6) and ground connection angle steel (7) are equipped with in wire connection cavity downside; Casing (1) is connected by the folding (5) of side with main chamber case lid (2), wire connection cavity cover plate (4); Casing (1) is explosion-proof faying face with the faying face of main chamber case lid (2), wire connection cavity cover plate (4), in outside, main chamber case lid (2), is provided with the switch contact lever (20) for control switch; Described main chamber case lid (2) is made up of flame proof plate II (22) and middle main chamber panel (21) outwardly; Bottom in casing (1) is provided with binding post fixed head (13) and flame proof plate I (14), and binding post fixed head (13) and flame proof plate I (14) will be divided into upper and lower two independently explosion-proof chambers in casing.