3results about How to "Uniform input" patented technology

The present application relates to the technical field of straw feed production, and particularly relates to a straw feed production process control method and a production line device. The method comprises the following steps: screening and crushing the straw raw material to obtain the raw material particle size parameter and determine the target feed particle size interval; adjusting the conveying speed and feeding amount of the crushed straw according to the target feed particle size interval, and conveying the straw to the puffing unit; extruding and puffing the straw material in the puffing unit to form the hot material state parameter; determining the ratio parameter of the bacterial agent and the enzyme preparation based on the hot material state parameter, and mixing the material, the bacterial agent and the enzyme preparation; collecting the material uniformity parameter during the mixing process, and adjusting the mixing time and the stirring intensity according to the uniformity parameter; the present application controls the straw feed production process to realize the automation, continuity and stable controllability of the straw feed production process and the product quality.

This invention discloses a superconducting melting device that uses a permanent magnet hollow motor to drive a low-temperature superconducting coil, belonging to the technical field of metal melting equipment. It includes a support base with a rotating connecting seat fixedly connected to its top. Through the linkage between the hollow motor and the low-temperature superconducting coil, when the hollow motor drives the hollow motor rotor to rotate, the rotor drives the low-temperature superconducting coil to rotate synchronously. The low-temperature superconducting coil directly generates a dynamic rotating magnetic field, which in turn forms a uniform rotating magnetic field inside the melting crucible. This rotating magnetic field directly acts on the stationary metal ingot, causing it to generate induced eddy currents and self-heat, melting it. Through the synergistic effect of the hollow motor and the low-temperature superconducting coil, the metal ingot can complete the transformation from solid to liquid in a completely non-contact state, avoiding the impurity introduction problem caused by direct contact between electrodes, crucibles, and other components and the molten metal in traditional melting methods. This achieves clean melting of highly active, high-purity metals.

The application provides a cathode closed air-cooled fuel cell system and a low-temperature starting method thereof, and can realize reliable low-temperature starting, improve the adaptability of the electric pile to a low-temperature environment and prolong the service life of the electric pile, and comprises the following steps: when it is monitored that the temperature of the electric pile is lower than a low-temperature first threshold value, a cooling path heater and an air path heater are started, the rotating speed of a cooling path fan and the rotating speed of a blower are cooperatively controlled, the difference between the temperature at the outlet of the cooling air and the temperature at the outlet of the air path is maintained in a preset interval; when it is monitored that the temperature of the electric pile reaches the low-temperature first threshold value, a load current is applied, and the load current increases with time at a preset slope; when it is monitored that the temperature of the electric pile reaches a preset second low-temperature threshold value, the load current is continuously increased to a target current, and then the rotating speed of the cooling path fan is cooperatively adjusted according to the deviation between the monitored temperature of the electric pile and a gradient target temperature and the change trend of the temperature of the electric pile until the temperature of the electric pile rises to be close to the optimal operating temperature of the electric pile.