The pin valve, also known as the spray gun check valve, detailed introduction.
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Description
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The pellet valve, also known as the spray gun check valve, is a type of valve specifically used in the field of blast furnace coal injection. Below is a detailed introduction to it:
- Structural Design: According to the relevant utility model patent, the pellet valve mainly includes components such as a valve body, a circular block, and a conical piston plate. The circular block is fixed on the inner surface of the valve body, and a conical hole is opened inside it. An annular sealing gasket is fixedly connected to the inner surface of the conical hole. The conical piston plate is arranged inside the circular block, with one side fixedly connected to a T-shaped pressing block and the other side fixedly connected to at least six V-shaped metal shrapnels. One end of each V-shaped metal shrapnel is fixed on one side of the inner wall of the valve body. In addition, one end of the valve body is fixedly connected to a spray gun insertion pipe, and the other end is fixedly connected to a pulverized coal discharge pipe. At least three elastic sealing rings arranged at equal intervals are also fixedly connected to the inner surface of the spray gun insertion pipe.
- Working Principle: When the coal injection rod is inserted into the valve body, it will squeeze the T-shaped pressing block, causing the T-shaped pressing block to move to one side, which in turn drives the conical piston plate to move out from the inside of the circular block. At this time, the valve opens, forming a connected exhaust channel, and the pulverized coal can be smoothly discharged. When the coal injection rod is pulled out, under the action of the elastic force of the six V-shaped metal shrapnels, the conical piston plate is squeezed back into the circular block to achieve sealing and prevent the high-temperature gas in the furnace from overflowing.
- Performance Characteristics: The pellet valve has the characteristics of good air tightness, strong pressure resistance, compact structure and high reliability. It is suitable for media such as pulverized coal, water, oil and dust-containing gas. The applicable temperature is ≤350°C, and there are various specifications available, including DN20, DN25, DN32, DN40 and other specifications.
- Product Types: According to different installation scenarios and working condition requirements, the pellet valve has various types such as elbow type, date pit type and square type.
- Function: The pellet valve is mainly used to connect the coal injection rod and the direct blow pipe of the blast furnace. It automatically opens when the coal injection rod is inserted into the blast furnace and automatically closes when the coal injection rod is pulled out from the tuyere of the blast furnace. It functions to prevent the hot gas in the blast furnace from overflowing, control the pulverized coal injection process, and ensure the safe and stable operation of the blast furnace coal injection system.
| Industry Category | Machinery & Equipment/Valves/Check Valves |
|---|---|
| Product Category | |
| Brand: | 翔业 |
| Spec: | DN32 法兰孔距90mm,喷枪直径27mm |
| Stock: | 1000 |
| Manufacturer: | 翔业（日照）环保设备有限公司 |
| Origin: | 113711 |
