CN102271476A

CN102271476A - Explosionproof operation box

Info

Publication number: CN102271476A
Application number: CN2011101947819A
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: 2011-12-07
Anticipated expiration: 2031-07-07
Also published as: CN102271476B

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 flame-proof type control box

Technical field

The present invention relates to explosion-proof technology field under the coal mine, specifically is a kind of flame-proof type control box.

Background technology

Have a large amount of combustible mediums under the coal mine, the factor that sets off an explosion is a lot, but mainly is spark and temperature that electric equipment is in operation and produces, and the control box that therefore is used for the down-hole must have explosion-proof.And be used at present that the control box of explosive gas atmosphere has explosion-proof types such as intrinsic safety type, flame-proof type and INCREASEDSAFETY under the coal mine, because the flame proof fail safe is higher relatively, therefore using maximum is the flame-proof type control box.The flame-proof type control box generally is made up of housing, interconnect, introducing device, closure plate etc.Often need unpacking detection or have the casing of observing device also to need chamber door and Transparent Parts.

Summary of the invention

In order to reach the flame proof requirement, the invention provides a kind of flame-proof type control box.When device interior was blasted, the flame proof faying face can prevent that spark and temperature from causing flammable medium blast on every side; Shell can bear inner blast pressure and not cause damaging, and can prevent that again detonation propagation is outside shell.Even break down so work as its device interior,, also explosion hazard can be completely cut off at device interior as on fire, short circuit, blast etc.

The present invention realizes with following technical scheme: a kind of flame-proof type control box, and it comprises casing, is divided into up and down two independently explosion-proof chambers in the casing; Top is the main chamber that is used to install electrical component, and the bottom is a wire connection cavity; Main chamber case lid is arranged above the main chamber, in the case lid of main chamber, be welded with connecting plate; Be fixed with pressing plate on the connecting plate; And the centre is lined with backing plate; Suspension hook is equipped with on case lid positive both sides in main chamber, and button, indicator light are equipped with in inside; The wire connection cavity cover plate is arranged above the wire connection cavity, and a suspension hook is equipped with in wire connection cavity cover plate outside, and the wire connection cavity downside is equipped with introducing device and ground connection angle steel; The folding by the side of casing and main chamber case lid, wire connection cavity cover plate is connected and realizes quick opening structure up and down; The faying face of casing and main chamber case lid, wire connection cavity cover plate is explosion-proof faying face, in main chamber case lid outside, the switch contact lever that is used for control switch is installed.

Advantage of the present invention is: low cost of manufacture, compact conformation, safety anti-explosive, move characteristics flexible and easy and simple to handle, thereby satisfied user's work requirements more broadly.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is a front view of the present invention;

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

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

Among the 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 Fig. 1, Fig. 2 and shown in Figure 3, a kind of flame proof control box housing is the rectangle stuffing box that is welded with steel plate, is made up of casing 1 and main chamber case lid 2 and wire connection cavity cover plate 4.Casing 1 and main chamber case lid 2 and wire connection cavity cover plate 4 link together by bolt.Casing 1 is the cavity on the flanged limit that is welded into by riser 8, flame proof plate III 23 and base plate 12.Bottom in casing 1 is equipped 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 up and down two independently explosion-proof chambers in the casing.Top is main chamber 11, is used to install electrical component; 11 inside, main chamber; In main chamber 11, on base plate 12, be fixed with guide rail 10, guide rail 10 by screw on base plate 12.The bottom is a wire connection cavity 15, and wire connection cavity 15 downsides are equipped with introducing device 6 and ground connection angle steel 7; Ground connection angle steel 7 links to each other 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 outwards outstanding main chamber panel 21; Case lid 2 outsides, main chamber are welded with suspension hook 3, and inside is welded with connecting plate 16, and is fluted on connecting plate 16, and rubber gasket 19 and clear glass 18 are housed in the groove; By the operating state that clear glass 18 is observed indicator light in the control cabinet, be convenient to staff's record and analyze the investigation fault; Backing plate 27 is housed in the middle of pressing plate 9 and the connecting plate 16 and passes through bolt together; Thereby pressing plate 9 compresses the effect that makes casing reach sealing by bolt with clear glass 18 and rubber gasket 19.Outside the main chamber case lid 2, switch contact lever 20 is installed, can comes control switch by switch contact lever 20.Wire connection cavity cover plate 4 is tightly connected by bolt and casing 1, and wire connection cavity cover plate 4 outsides are welded with suspension hook 3.Casing 1 and main chamber case lid 2 and wire connection cavity cover plate 4 are realized quick opening structure up and down 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 be handled through accurate processing and acid washing phosphorization and reach seal request.

Claims

1. flame-proof type control box is characterized in that: comprise casing (1), be divided into up and down two independently explosion-proof chambers in the casing; Top is the main chamber (11) that is used to install electrical component, and the 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); Be fixed with pressing plate (9) on the connecting plate (16), the centre is lined with backing plate (17); Suspension hook (3) is equipped with on the positive both sides of main chamber case lid (2), and button, indicator light are equipped with in inside; Wire connection cavity cover plate (4) is arranged above the wire connection cavity (15), and a suspension hook (3) is equipped with in wire connection cavity cover plate (4) outside, and the wire connection cavity downside is equipped with introducing device (6) and ground connection angle steel (7); 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 main chamber case lid (2) outside, the switch contact lever (20) that is used for control switch is installed.

2. a kind of flame-proof type control box according to claim 1 is characterized in that: described casing (1) is the cavity on the flanged limit that is welded into by riser (8), flame proof plate III (23) and base plate (12).

3. a kind of flame-proof type control box according to claim 1, it is characterized in that: the bottom in described casing (1) is equipped 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 up and down two independently explosion-proof chambers in the casing.

4. a kind of flame-proof type control box according to claim 1 and 2 is characterized in that: in described main chamber (11), be fixed with guide rail (10) on base plate (12).

5. a kind of flame-proof type control box according to claim 1 is characterized in that: described main chamber case lid (2) is made up of flame proof plate II (22) and middle outwards outstanding main chamber panel (21).

6. a kind of flame-proof type control box according to claim 1 is characterized in that: upward fluted at connecting plate (16), rubber gasket (19) and clear glass (18) are housed in the groove.