An air duct explosion-proof buffer device

Abstract

This utility model relates to the field of oil shale production technology, specifically to an air duct explosion-proof disc interception and buffer device. It addresses the current problem that when air duct explosion-proof discs splash during the initial gas supply of a retort furnace, the lack of a dedicated blocking device easily leads to explosive fragments causing injury to equipment and personnel, ultimately affecting the overall production efficiency of the retort furnace. This device uses a buffer rubber pad fixed to the outside of the explosion-proof disc via a cross-shaped steel frame. The cross-shaped steel frame extends from the edge of the pipe to the back of the rubber pad. Holes are drilled in the rubber pad, and wires are threaded through it and fixed to the cross-shaped steel frame. The flexibility of the rubber pad absorbs the energy of the explosive fragments through deformation, effectively blocking them. A funnel is connected below the cross-shaped steel frame and the explosion-proof disc. The bottom of the funnel is plugged with a conical wooden stopper, causing fragments to fall into the funnel along the pipe wall. After the explosion, the wooden stopper is removed, and the remaining fragments in the funnel are cleaned. This significantly reduces the safety risks caused by the explosion of the explosion-proof disc.

Description

Technical Field

[0001] This utility model relates to the field of oil shale production technology, specifically to an air duct explosion-proof buffer device. Background Technology

[0002] Currently, in the oil shale production process, the protective device on the air pipeline is a thick explosion-proof disc. This protective device has design flaws and safety hazards. In the event of an emergency power outage or failure of equipment such as the scraper conveyor or coke pusher, a furnace shutdown procedure must be performed. When the power or equipment is restored to normal, at the moment the furnace is started and air is supplied, a momentary positive pressure appears inside the dry distillation furnace. When the air mixes with the high-temperature coal gas overflowing from the furnace, an explosion is very likely to occur. The explosion causes the explosion-proof disc of the main air pipeline to fly out. After the explosion-proof disc itself breaks, it is very easy to produce sharp metal fragments that fly out at high speed like shrapnel, causing serious cuts and penetrating injuries to personnel, or damaging surrounding facilities. In severe cases, it can lead to production stoppage, seriously affecting normal production order and causing great economic losses. Utility Model Content

[0003] This invention provides an air duct explosion-proof plate interception and buffer device to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An air duct explosion-proof buffer device includes an air duct, an explosion-proof plate is installed at the end of the air duct, a cross steel frame is fixedly connected to the end of the air duct, a buffer rubber pad is detachably connected to the side of the cross steel frame near the air duct, and a funnel is fixedly installed at the bottom of the cavity formed by the buffer rubber pad and the end of the air duct.

[0006] Furthermore, multiple connecting rods are fixedly and evenly connected to the end of the air duct, and the cross steel frame and the connecting rods are fixedly connected.

[0007] Furthermore, the cushioning rubber pad and the cross steel frame are detachably connected by steel wire.

[0008] Furthermore, the bottom of the funnel is also provided with a conical wooden plug.

[0009] This utility model has the following beneficial effects:

[0010] This utility model provides an air duct explosion-proof disc interception and buffer device. A thick buffer rubber pad is fixed to the outside of the air duct explosion-proof disc via a cross-shaped steel frame. The cross-shaped steel frame extends from the edge of the gas pipeline to the rear of the buffer rubber pad. Holes are drilled in the buffer rubber pad, and wires are threaded through it, using steel wires to fix it to the cross-shaped steel frame. The flexibility of the buffer rubber pad and its plastic deformation absorb the energy of explosive fragments, effectively blocking them. A funnel is connected below the cross-shaped steel frame and the explosion-proof disc. The bottom of the funnel is plugged with a conical wooden plug, causing explosive fragments to fall into the funnel along the funnel wall. After the explosion, the wooden plug is removed, and the remaining fragments in the funnel are cleaned. This greatly reduces the safety risk caused by the explosion of the explosion-proof disc. It solves the problem that currently, when air duct explosion-proof discs splash during the start-up of a distillation furnace, the lack of a dedicated blocking device easily leads to explosive fragments injuring equipment and personnel, ultimately affecting the overall production efficiency of the distillation furnace. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] The meanings of the reference numerals in the attached figures are as follows:

[0013] 1. Air duct; 2. Connecting rod; 3. Cross steel frame; 4. Buffer rubber pad; 5. Steel wire; 6. Funnel; 7. Conical wooden plug; 8. Explosion-proof plate. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1 As shown, an air duct explosion-proof buffer device includes an air duct 1, an explosion-proof plate 8 is provided in the end of the air duct 1, a cross steel frame 3 is fixedly connected to the end of the air duct 1, a buffer rubber pad 4 is detachably connected to the side of the cross steel frame 3 near the air duct 1, and a funnel 6 is fixedly provided at the bottom of the cavity formed by the buffer rubber pad 4 and the end of the air duct 1.

[0016] Multiple connecting rods 2 are fixedly and evenly connected to the end of the air duct 1, and the cross steel frame 3 is fixedly connected to the connecting rods 2.

[0017] The cushioning rubber pad 4 and the cross steel frame 3 are detachably connected by steel wire 5.

[0018] The bottom of the funnel 6 is also equipped with a conical wooden plug 7.

[0019] In practical applications, this utility model is pre-planned according to... Figure 1As shown, all components are properly installed and checked for proper installation before use. When the gas is supplied to the dry distillation furnace during startup, the explosion-proof disc 8 of the air duct 1 may splash. Due to the lack of a dedicated blocking device, this can easily lead to explosive fragments injuring equipment and personnel, affecting the overall production efficiency of the dry distillation furnace. This device addresses this by fixing a buffer rubber pad 4 to the outside of the explosion-proof disc 8 via a cross steel frame 3. The cross steel frame 3 extends from the edge of the air duct 1 to the rear of the buffer rubber pad 4, forming a wrapping effect on the buffer rubber pad 4, thus improving its blocking stability. The buffer rubber pad 4 is then drilled... The device is installed by threading a wire through a hole and fixing it to the cross-shaped steel frame 3 with steel wire 5. The flexibility of the buffer rubber pad 4 is used to absorb the energy of the explosive fragments through deformation, which plays an effective role in blocking the explosion. Then, a funnel 6 is connected below the cross-shaped steel frame 3 and the explosion-proof plate 8. The bottom of the funnel 6 is blocked with a conical wooden plug 7, so that the fragments fall into the funnel 6 along the tube wall. After the explosion, the conical wooden plug 7 is removed and the fragments in the funnel 6 are cleaned. This greatly reduces the safety risk caused by the explosion of the explosion-proof plate 8 and ensures the overall production efficiency of the dry distillation furnace. Therefore, the device has good practicality.

Claims

1. An air duct explosion-proof sheet interception and buffering device, comprising an air duct (1), an explosion-proof sheet (8) is arranged in the end of the air duct (1), characterized in that: A cross steel frame (3) is fixedly connected to the end of the air duct (1). A buffer rubber pad (4) is detachably connected to the side of the cross steel frame (3) near the air duct (1). A funnel (6) is fixedly provided at the bottom of the cavity formed by the buffer rubber pad (4) and the end of the air duct (1).

2. The air duct explosion-proof sheet interception and buffering device according to claim 1, characterized in that: The air duct (1) is fixedly and evenly connected to a plurality of connecting rods (2), and the cross steel frame (3) and the connecting rods (2) are fixedly connected.

3. The air duct explosion-proof sheet interception and buffering device according to claim 1, characterized in that: The cushioning rubber pad (4) and the cross steel frame (3) are detachably connected by steel wire (5).

4. The air duct explosion-proof buffer device according to claim 1, characterized in that: The bottom of the funnel (6) is also provided with a conical wooden plug (7).

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