Non-mezzanine bulk cement tanker tank for railroad

Abstract

The invention relates to a non-mezzanine bulk cement tanker tank for the railroad. The tank comprises a horizontal tank, wherein the horizontal tank is of a segmented combined structure and consists of a middle short cylindrical section, a pair of right-angle oblique cone cylinders and a pair of tank heads, and the upper generatrix of the right-angle oblique cone cylinders and the upper generatrix of the middle short cylindrical section horizontally coincide; the lower generatrix of the right-angle oblique cone cylinders and the lower generatrix of the middle short cylindrical section form a slope, and a curved fluidized bed is arranged at the bottom of the inner cavity of the right-angle oblique cone cylinders in an adherence way and is provided with a plurality of juxtaposed breathable weaving tube belts which are connected with an external compressed gas source through an intake manifold. The design eliminates the complex internal structure of the existing cement tanker, utilizes the radian and the slope of the bottom of the tank to arrange the fluidized beds, so that the internal structure of the tank is simplified, the invalid volume is eliminated, the weight of the tank is reduced, and the height of the center of gravity is reduced, thus the vehicle load is increased, a series of inertia problems brought by ash leakage are solved, and the maintenance and the overhaul are more time-saving and convenient.

Description

technical field [0001] The invention relates to a railway bulk cement tanker, in particular to a tank body of a railway bulk cement tanker without an interlayer. Background technique [0002] The railway bulk cement tanker is a special railway vehicle used to transport cement and realize long-distance transportation and automatic loading and unloading through the supporting loading and unloading facilities on the ground. The tank body is a key component of the storage, transportation, loading and unloading of bulk cement tankers on railways. The railway bulk cement tanker is different from the general liquid tanker. Because the material cement loaded is a kind of powdery particles, the bulk density of different grades of cement is relatively large, mostly 1.0-1.6 tons / cubic meter, and the static angle of repose is 40-45. °, resulting in relatively poor fluidity, and must rely on certain technical means to unload it. Fluidization technology is usually used, so the requireme...

AI Technical Summary

Problems solved by technology

[0005] This kind of structure that divides the tank into the upper effective space and the lower invalid space is the so-called interlayer structure. Although it solves the problem of unloading, it brings many defects: firstly, it is obvious that the utilization rate of the tank volume is reduced. Through the analysis of the volume utilization rate of several existing railway bulk cement tank cars, it is found that the volume utilization rate is less than 82%; secondly, the center of gravity of the vehicle is raised, and the running quality of the vehicle is reduced. The height of the center of gravity of the existing railway bulk cement tank car is generally at 2100-2300mm; moreover, the complex structure in the tank increases the difficulty of tank processing, and the complex support structure needs to be assembled and welded in the tank, which also brings hidden dangers to safe production and greatly increases the weight of the tank

Practice has shown that after a period of transportation, the tank body may have different degrees of local collapse or weld cracking due to various reasons, resulting in reduced discharge performance

At the same time, the cement leaks under the interlayer, which cannot be unloaded and is not easy to clean up. The long-term accumulation will cause the vehicle's self-weight to increase continuously, causing users to lose tons

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