Powder tanker, also known as powder material transport vehicle, refers to a special vehicle for transporting bulk dry materials with particle diameter no more than 0.1mm, such as cement, pulverized coal, stone powder, flour and chemical powder. It is generally widely used in industry, agriculture, commerce, power plant, construction and other industries. It is a special vehicle.

From the structural point of view, most of the powder tank cars are horizontal, such as horizontal single bin, horizontal double bin and horizontal three bin. Among them, single bin and double bin are the main ones. The three bin belongs to "super large powder tank", which is not very common in the market at present.

The feeding port of the powder tanker is above the tank body, and the tank body is equipped with an air chamber structure and a fluidized bed. When discharging, the powder loaded in the closed tank body is fluidized by compressed gas, and then it is "blown" out of the tank body. In order to facilitate the flow of powder, an inclination will be designed at the bottom of the tank. For those powder with poor fluidity, the inclination will be changed to the lifting function. In addition, according to different transportation media, the tank shape of powder tank car often has great differences.

As a special transport vehicle for powder materials, powder tanker also has some unique advantages:

1. High loading, unloading and transportation efficiency. Loading and unloading of powder tanker is simple and easy. Compressed air can be directly used without too much human participation, which can greatly reduce human consumption, improve labor conditions and improve labor productivity;

2. Save packaging materials. The powder tanker does not need to pack the powder during transportation, which can reduce the packaging cost and save the transportation cost;

3. Large transportation volume. At present, the common powder tanker on the market has a maximum loading capacity of about 75 square meters, a weight of nearly 100 tons and a large transportation volume;

4. Powder loss is reduced. Compared with the transportation of bagged powder, the loss rate of powder tank transportation is smaller, generally less than 0.5%, and can greatly reduce the cargo damage caused by moisture;

5. Reduce environmental pollution. Powder can transportation can reduce packaging waste, save resources, and reduce particle pollution during transportation.

In recent years, with the continuous development of national policies and infrastructure projects, the development speed of powder tanker has also been greatly improved. Its development trend mainly shows the following aspects:

1. Efficiency.

The dry discharge of powder has always been an important performance index of powder tanker. In order to make the discharge speed faster and the discharge residual rate lower, the means such as reducing the area of fluidized bed, reducing the four corners of tank flow, and adopting lower discharge mode also emerge in endlessly.

2. Lightweight.

Lightweight is almost the only way for the development of China's trailer industry, and powder tanker is no exception. With the market's pursuit of lightweight, the tank thickness of powder tank truck is becoming thinner and thinner, such as using lighter high-strength steel, using aluminum alloy materials, selecting lightweight parts, etc.

3. Security.

For the vehicle, if the safety performance does not meet the standard, any other performance is playing rogue. The loading capacity of powder tanker is generally large, and the requirements for the strength, toughness, pressure resistance, service life and other conditions of the tank body and chassis are relatively higher.

As a key component of the chassis of the powder tanker, the axle not only bears the load-bearing and braking performance of the vehicle, but also relates to the weight of the vehicle. According to relevant statistics, the axle weight of a three axle semi-trailer is about 20% of the total weight of the trailer. Choosing a high-performance axle is not only related to the safety of the vehicle, but also related to the lightweight of the vehicle.

Darong heavy industry group is an enterprise focusing on the R & D and production of trailer axle / axle, with a history of more than 20 years. It has accumulated a lot of experience in "one-piece" axle casting, integrated heat treatment, three hole boring and finishing, shaft head medium frequency induction strengthening treatment, CNC machine tool precision grinding and other processes. Darong's disc axle, drum axle, low flat axle, three wire six axle axle axle, special axle and other products are rich, which have been certified by the industry, with stable and reliable performance such as strength, toughness and ductility.