Steel mills use LFTA600 blasting discs with positive arch and slit type

Steel mills use LFTA600 blasting discs with positive arch and slit typeThe concave surface is located on the high-pressure side of the pressure system. A bursting disc consists of two or more layers, with one layer being a sealing film and at least one layer being a positively arched bursting disc with holes (seams). The positive arch slotted blasting disc is a new structure designed to solve the production difficulties caused by low blasting pressure or small discharge diameter. In order to seal it, a sealing membrane must be added. Due to the limitations of temperature and pressure on the sealing membrane material, the applicability of the positive arch slotted blasting disc is restricted.

Product Description:

A combination explosive disc is composed of components such as a strength film and a sealing film, and an additional layer of support is required for situations where back pressure needs to be withstood. There are holes and seams (radial or circumferential seams) on the strength film and bracket that weaken the strength of the material. When subjected to overpressure, it will break under tension at the section with the minimum hole spacing.

Characteristics of positive arch slotted blasting disc (LF)

1. Suitable for both gas and liquid media, as well as medium and low-pressure burst pressure conditions

2. When selecting a sealing film, consideration should be given to its temperature range of applicability

3. The maximum working pressure can reach 80% of the minimum burst pressure

4. Fragments may be generated during blasting, and it is not recommended to use them in series with safety valves

5. Large caliber LF type blasting discs can achieve very low blasting pressure and are suitable for dust release and explosion suppression occasions

6. The product code without bracket is LF, and the product code with bracket is LFT

7. The product nameplate has TS

8. Size: DN10~DN1200mm

The use and inspection methods of explosive discs

1. When a container medium is corrosive, flammable, or highly toxic and a bursting disc device is installed, the material of the bursting disc and the bursting pressure determined at the time of design should be indicated on the drawing.

2. The connecting pipe between the explosive disc and the container should be a straight pipe with low resistance, and the cross-sectional area of the pipeline channel should not be less than the discharge area of the explosive disc.

3. The discharge pipeline of the explosive disc should be installed as vertically as possible, avoiding spaces that are accessible to adjacent equipment and operators. When the medium is flammable, toxic, or highly toxic, it should be taken to a safe location for proper disposal. The inner diameter of the discharge pipe should not be smaller than the diameter of the bursting disc discharge, and there should be measures to prevent it from being blocked by bursting disc fragments.

4. Explosive discs should generally be connected to the gas phase space of the container, and the clamping should be firm. The clamping device and sealing gasket surface should not have oil stains, and the clamping bolts should be tightened.

5. During operation, the bursting disc device should be regularly checked for leaks and abnormalities.

6. Blasting discs should be replaced regularly, and the replacement period should be determined by the user unit based on their actual situation. If the bursting pressure exceeds the calibrated bursting pressure of the bursting disc but fails to burst, it should be replaced.

The above isSteel mills use LFTA600 blasting discs with positive arch and slit typeFor more detailed parameters, please consult our sales engineer.