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16

2023-01

304 stainless steel pipe manufacturer: What is the "secret" of stainless steel products that don't rust?

The manufacturer provides the following explanation: Stainless steel remains stainless, or resists rust, due to a displacement reaction between the alloy composition of the stainless steel and the environment. Stainless steel contains iron, chromium, manganese, silicon, and carbon, and in most cases, a significant amount of nickel and molybdenum. These elements react with oxygen from water and air to form a very thin and relatively stable film. This film consists of metal fluorides and nickel hydroxides, as well as corrosive chemical molecules. Aluminum plays a dominant role in the formation of this protective film. In fact, the aluminum content in each stainless steel product pipe accounts for 10%. The manufacturer states that the appearance of this stable film as a natural barrier limits the damage of oxygen and water to the metal surface, preventing further corrosion. Because the formation of this film is very tight, even a small amount of coating can reduce the corrosion rate to a very low level. However, this film is much thinner than the wavelength of light, so it can only be observed with modern instruments. Therefore, although stainless steel pipes...

2023-01-16

16

2023-01

How to choose the right stainless steel round tube?

Stainless steel round tubes come in various stainless steel grades. How to choose the right one? When purchasing stainless steel round tubes, it's often confusing to choose the right stainless steel grade, as better stainless steel material means higher price and higher product cost. 304 stainless steel round tubes still have excellent corrosion resistance in a boiling environment with a hydrochloric acid concentration ≤65%. Moreover, it also has good corrosion resistance to alkaline solutions and most organic and strong oxidizing agents. Stainless steel plates can resist gaseous corrosive substances in building decoration materials. It is a type of steel with beautiful appearance and good corrosion resistance. No plating or surface treatment is needed, but the original surface properties of the stainless steel plate can be fully utilized, and its applications are wide-ranging. So, what kind of stainless steel material is good and suitable for use? Stainless steel round tubes include 201 stainless steel, 304 stainless steel, and 316 stainless steel. In fact, for stainless steel round tubes, the quality of the stainless steel material is not the most important factor, but the application itself.

2023-01-16

16

2023-01

Working principle of the lime silo dust collector

The principle of the lime silo dust collector. The dust collector for the silo generally consists of a fan, an upper shell, a connecting flange, and an electrical cabinet. The upper box contains dust bags and a dust removal frame. The dust bags and dust removal frame are installed on the ceiling and are the boundary between the clean gas and the dusty gas. Below the ceiling are the dust bags and dust removal frame, and above the ceiling are the blower pipes and pulse valves. The welded flange is welded to the concrete silo (or other powdery container) as a support point for the dust collector; the upper shell and the welded flange are sealed together with screws; the middle joint is sealed with sealant; when the screw conveyor feeds the powder machine, the pressure inside the silo is lower than atmospheric pressure, allowing the screw conveyor to operate normally. Top dust collector pulse back-blowing cleaning: When the high-speed back-blowing cyclone reaches the top of the filter bag, it blows into the filter bag to generate air waves, causing the filter bag to expand and vibrate from top to bottom, with obvious cleaning effect. Single pulse cleaning has a strong cleaning effect and can improve the filtration wind force. It is a very good cleaning method at present. The principle of the roof dust collector is that one end of the pulse valve is connected to the reduced air chamber, and the other end is connected to

2023-01-16

16

2023-01

Shortcomings and Improvements of the Lime Storage Silo

Currently, the lime storage silo is a key component of the water treatment system in water companies. China's drinking water hygiene standards specify a pH value of 6.5~8.5 for potable water. Currently, the pH value of water sources in many parts of China is consistently slightly low. Furthermore, after source water undergoes coagulation and chlorination, the water pH generally decreases again. Therefore, lime milk from the lime storage silo is used to adjust the water's pH. Pre-upgrade lime storage silo conditions: Dry lime was fed into the solution tank and mixed with drinking water; the drinking water platform flow rate was simultaneously controlled by the inlet flow meter and valve. After mixing, it was injected into the water absorption tank for thorough mixing. During this process, many problems arose, frequently interrupting the normal operation of the lime storage silo, affecting the coagulation sedimentation reaction, harming water quality, and reducing the stability of power supply quality. Main defects of the pre-improvement lime storage silo system: (1) The solution tank and suction pipe water surface used fiberglass reinforced plastic (FRP) anti-corrosion, with relatively thin material. During operation, the stirrers installed in the solution tank and water absorption tank covers were impacted by the force of the mixer.

2023-01-16

16

2023-01

Let's talk about the reconstruction and composition of the feeding system for large steel plate silos.

Let's talk about the transformation and composition of the feeding system for large and medium-sized steel plate silos. The transformation of the feeding system for large and medium-sized steel plate silos, also known as the gasification pipe, is an auxiliary facility within large and medium-sized steel plate silos. The steel plate silo gasification pipe is a type of auxiliary facility for steel plate silos. Advantages of gasification pipes: upgrading and transformation of the feeding of old steel plate silos; small difficulties in concrete feeding, large load, reliable operation, beneficial for changing transportation tasks and handling more goods, etc. The feeding system of large and medium-sized steel plate silos generally consists of six parts: gas pipeline, exhaust pipe, bin gasification pipeline, pneumatic sweeping pipe, discharging machine, and feeding safety passage. 1. The gas pipeline of large and medium-sized steel plate silos uses DN250 seamless steel pipes. The gas pipeline manager in the gasification area is located in the feeding pipeline, and the gas pipeline manager in the bin-side gasification area is located outside the bin wall of the steel plate silo. 2. The materials and layout of the exhaust pipe of the steel plate silo are the same as the gas pipeline, both being standard DN250 seamless steel pipes. The exhaust pipe and the gasification pipe alternately constitute the pipeline. 3. The bin gasification pipeline of the steel plate silo uses DN250 seamless steel pipes, the same as the gas pipeline.

2023-01-16

16

2023-01

Stainless steel pipe manufacturers: The difference between stainless steel pipe and stainless steel decorative pipe

Stainless steel pipe manufacturer: Stainless steel pipe is a type of pipe used for industrial transportation. The surface is generally bright, with a few exceptions having a frosted surface. Because it is used in machinery or transportation, the corrosion resistance, working pressure resistance, and elongation of the pipe are generally very high. The material is mostly 304, but 201, 202, and 301 are also used depending on the requirements and application. Stainless steel pipes, as mentioned above, are used in stainless steel products. Due to their suitable diameter, size, mechanical properties, corrosion resistance, and anti-corrosion properties, they are generally used in large and medium-sized chemical manufacturing enterprises for anti-corrosion coatings or metal products. The diameter and thickness are strictly specified. Stainless steel pipes are usually formed in one piece, and nitrogen protection is added during welding. Stainless steel decorative pipes generally have a bright surface. In short, stainless steel decorative pipes are used for decoration. Generally, decorative stainless steel pipes are very thin.

2023-01-16

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