A single drive dual hopper conveyor system is presented having a center conveyor system and a pair of side conveyor systems that are connected to one another. A single motor is connected to the center conveyor system and drives movement of a belt within the center conveyor system. The connection of the center conveyor system to the side conveyor system causes the belts of the side conveyor systems to be simultaneously driven as the belt of the center conveyor system is driven. This arrangement eliminates the need for multiple motors. A guide at the center of the belts is configured to guide the belts through the center of the housings and prevent the buildup of grain within a cut-out section of the flights of the belt that is needed to allow access to the links of the belts to facilitate driving of the belts.

A frictional force monitoring system for middle troughs of a scraper conveyor, comprising a scraper conveyor system and a sensing detection system. The scraper conveyor system consists of a machine body, middle troughs, thrust lugs, scrapers, a double chain, a sprocket, a speed reducer, an electric motor and a frequency converter. The sensing monitoring system consists of force receiving modules, a three-dimensional force sensor, and a pre-embedded temperature sensor. The frictional force monitoring system is able to monitor impact loads, frictional forces, friction coefficients, temperature, etc. between an annular chain, coal bulk, and middle troughs of the scraper conveyor under complex and severe operating conditions, and to provide the technical means for the design, safety early-warning and health evaluation of the scraper conveyor, and can provide a data basis for studying friction wear and fatigue breaking mechanism of middle troughs of a scraper machine.

A frictional force monitoring system for middle troughs of a scraper conveyor, comprising a scraper conveyor system and a sensing detection system. The scraper conveyor system consists of a machine body, middle troughs, thrust lugs, scrapers, a double chain, a sprocket, a speed reducer, an electric motor and a frequency converter. The sensing monitoring system consists of force receiving modules, a three-dimensional force sensor, and a pre-embedded temperature sensor. The frictional force monitoring system is able to monitor impact loads, frictional forces, friction coefficients, temperature, etc. between an annular chain, coal bulk, and middle troughs of the scraper conveyor under complex and severe operating conditions, and to provide the technical means for the design, safety early-warning and health evaluation of the scraper conveyor, and can provide a data basis for studying friction wear and fatigue breaking mechanism of middle troughs of a scraper machine.

The present invention discloses a dynamic reliability evaluation method for coupling faults of a middle trough of a scraper conveyor. Approximation precision of a moment-based saddlepoint approximation method and a function attribute of dynamic t-copula are fully utilized, and the dynamic reliability evaluation method for the coupling faults of the middle trough of the scraper conveyor is provided, so that dynamic correlation between failure modes of the middle trough of the scraper conveyor under a small sample condition is more accurately described, and accuracy of dynamic reliability evaluation of the coupling faults of the middle trough of the scraper conveyor is improved.

The present invention discloses a dynamic reliability evaluation method for coupling faults of a middle trough of a scraper conveyor. Approximation precision of a moment-based saddlepoint approximation method and a function attribute of dynamic t-copula are fully utilized, and the dynamic reliability evaluation method for the coupling faults of the middle trough of the scraper conveyor is provided, so that dynamic correlation between failure modes of the middle trough of the scraper conveyor under a small sample condition is more accurately described, and accuracy of dynamic reliability evaluation of the coupling faults of the middle trough of the scraper conveyor is improved.

The present invention discloses a dynamic reliability evaluation method for coupling faults of a middle trough of a scraper conveyor. Approximation precision of a moment-based saddlepoint approximation method and a function attribute of dynamic t-copula are fully utilized, and the dynamic reliability evaluation method for the coupling faults of the middle trough of the scraper conveyor is provided, so that dynamic correlation between failure modes of the middle trough of the scraper conveyor under a small sample condition is more accurately described, and accuracy of dynamic reliability evaluation of the coupling faults of the middle trough of the scraper conveyor is improved.

A conveyor pan for a chain scraper conveyor comprises a bottom plate and a pair of side profiles fixed to the bottom plate by welding. The conveyor pan has an increased wear resistance, in particular due to a specific geometry of a weld groove formed between the profile rails of the side profile and the bottom plate. The weld groove extends deeper into each profile rail, resulting in a more durable weld connection during use of the conveyor pan. In addition, a geometry of a pocket member for connecting adjacent conveyor pans and an inspection opening formed in the bottom plate have also been improved to result in an increased strength of the conveyor pan.

A conveyor pan for a chain scraper conveyor comprises a bottom plate and a pair of side profiles fixed to the bottom plate by welding. The conveyor pan has an increased wear resistance, in particular due to a specific geometry of a weld groove formed between the profile rails of the side profile and the bottom plate. The weld groove extends deeper into each profile rail, resulting in a more durable weld connection during use of the conveyor pan. In addition, a geometry of a pocket member for connecting adjacent conveyor pans and an inspection opening formed in the bottom plate have also been improved to result in an increased strength of the conveyor pan.

The present invention relates to the use of a mechanical apparatus to convey a workpiece through a fluidized bed dryer. In particular, the invention relates to a single or multiple stage vibrating fluidized drag conveyor having spaced apart conveyor paddles attached to a continuous chain or a similar device, and driven by a variable frequency motor drive. The invention is of particular applicability in the case of low-density workpieces where chaotic motion of air may disrupt or reverse the orderly flow of workpieces through the dryer.

The present invention relates to the use of a mechanical apparatus to convey a workpiece through a fluidized bed dryer. In particular, the invention relates to a single or multiple stage vibrating fluidized drag conveyor having spaced apart conveyor paddles attached to a continuous chain or a similar device, and driven by a variable frequency motor drive. The invention is of particular applicability in the case of low-density workpieces where chaotic motion of air may disrupt or reverse the orderly flow of workpieces through the dryer.