A railway vehicle (100) for moving material includes a first and a second railway wagon (1, 50), each of which extend between respective first and a second end portion (2, 3), the first and second railway wagons engaged at the second end portion (3) of the first railway wagon and at the first end portion (2) of the second railway wagon, wherein the first and second railway wagons each include: a platform (4), a carriage (5), a conveyor (6) carried by the platform (4) and having an operating section (T) configured to move the material along a advancement direction (A). The railway vehicle includes a connection device (7) carried by at least one of said first and second railway wagons (1, 50) and configured to define an intermediate section for connecting the operating sections of the conveyors of the first and second railway wagons.

There is provided a conveyor belt for marginal life prediction, in which wear of the degree of the conveyor belt can be well and visually recognized without stopping of the conveyor belt on operation, and the replacement time of the conveyor belt can be easily predicted in advance, thereby to predict and efficiently manage the life time of the conveyor belt. It was difficult to check abrasion extents step by step and exactly predict the life time in the conventional conveyor belts. Further, the accidents of carrying articles released out of the conveyor belt were frequently occurred since troughs of the conveyor belt are not formed enough, and the angle of the trough is so small. As the way of solving the problems as above, while the wear of the conveyor belt is progressed, and when the abrasion check colored rubbers, which are embedded inside the conveyor belt, are exposed outwardly and checked visually by eyes, the extent of the abrasion of the conveyor belt can be estimated and the exchange time of the conveyor belt can be well predicted. The number of the exposed abrasion check colored rubbers is well detected by installing the abrasion check colored rubbers in multi-layers with installation number reduced downwardly, thereby to enable anybody to predict the life time of the conveyor belt step by step precisely.

A portable sandbag and aggregate bag filling machine that may be readily loaded in a shipping container or truck and shipped along the less-than-truckload (LTL) road and transport system network. The sandbag filling machine is designed to fit entirely within a shipping container without disassembly into component parts. The machine is sufficiently compact with minimized height to allow a complete and operable gravity-fed hopper and operable ascending horizontal sand feeder belt machinery suitable for optimized sand handling to be included in a working and deliverable unit sufficiently small to be placed and transported in a shipping container or truck trailer.

A system is provided. The system includes a conveyor apparatus configured for conveying a material and a water content measurement system positioned about the conveyor apparatus for determining water content in the material. A dimension characteristic measurement system for detecting one or more dimension characteristics of the material is provided and a computer device is configured to manipulate data received from the water content measurement system and the dimension characteristic measurement system to determine a water content of the material.

A link for a conveyor chain includes a first portion and a second portion laterally spaced apart from the first portion. The first portion includes a first sprocket-engaging pin, and the second portion includes a second sprocket-engaging pin. The first sprocket-engaging pin and the second sprocket-engaging pin protrude laterally away from one another. The first sprocket-engaging pin and the second sprocket-engaging pin may each have an oblong cross-section. At least one retainer can secure a connecting pin against movement relative to at least one of the first portion and the second portion, and each retainer can be positioned substantially within one of the first portion and the second portion.

The invention relates to a screening element for screening and transporting grit material, for applying to a sanding device of a sanding apparatus for a vehicle. The screening element includes a plate element provided with a shaft-coupling mechanism, at least one through-opening, and at least one lug. The shaft-coupling mechanism is designed to couple the screening element to a shaft device of a rotary feeder of the sanding device. The through-opening is arranged in the plate element and is designed to guide grit material through the plate element. The lug extends transversely in relation to a main surface of the plate element, away from the plate element.

A belt conveyor has a plurality of impact bars installed beneath a conveyor belt in transverse directions along a longitudinal direction of the belt in order to prevent the conveyor belt from sagging, and thus an operator can easily replace and check impact bars without stopping driving of the belt when replacing and checking the impact bars.

A belt conveyor includes a conveyor belt configured to move in a longitudinal direction. The conveyor belt has two large faces, and a number of support stations distributed longitudinally along the conveyor belt. The support stations are configured to support the conveyor belt by one of the large faces. At least one support station includes a drive motor configured to drive the conveyor belt in the longitudinal direction relative to the support stations.

In one embodiment, a hopper spreader apparatus for spreading granular material is provided. The hopper spreader apparatus includes a hopper, a spreading unit, and a dispensing unit. The hopper has a storage cavity for storing the granular material to be spread. The spreading unit spreads the granular material. The dispensing system transports the granular material from the hopper to the spreading unit. The dispensing system includes a conveying unit and a rotating first roll. The conveying unit conveys the granular material toward the spreading unit. The rotating first roll controls a flow of granular material from the hopper to the conveying unit. The use of the rotating roll allows for control of high flow material (such as for example dry salt) while allowing for improved collapse and break-up of low flow material (such as for example wetted sand).

A conveyor sled assembly is utilized to supply proppant in support of oilfield hydraulic fracturing operations. The conveyor sled assembly includes precisely positioned components where tolerances between components are so small as to prevent significant spillage at component junction boundaries. This manner of fitting proppant pods onto the conveyor sled assembly increases predictability of which pods will discharge their proppant load first. This enhances reliability of the overall proppant delivery system.