4results about How to "Play a preheating role" patented technology

This invention discloses a high-temperature aerobic fermentation fertilizer made from livestock and poultry manure and straw suitable for saline-alkali land, and its preparation method, relating to the field of mixed fertilizer technology. The apparatus for preparing this high-temperature aerobic fermentation fertilizer made from livestock and poultry manure and straw suitable for saline-alkali land includes a fermentation drum. A feed cover is movably connected inside the fermentation drum, and a discharge cover is movably connected to the outer wall of the fermentation drum. A feed cover is fixedly connected to the right side of the fermentation drum. The method for preparing this high-temperature aerobic fermentation fertilizer made from livestock and poultry manure and straw suitable for saline-alkali land involves rotating the fermentation drum around a fixed axis, turning over the internal pile. An inner convex plate scoops up the bottom pile material and then throws the corresponding pile material downwards, dispersing the bottom pile material onto the top. This allows the pile to maintain a more even temperature during fermentation, resulting in higher microbial activity and significantly improved fermentation efficiency.

The aluminum ingot preheating device based on the waste heat of the smelting furnace comprises a device body, a first gas guide plate is arranged at the bottom end in the device body through a supporting rod, a second gas guide plate is arranged at the top end of the first gas guide plate, a first gas guide cavity is formed in the first gas guide plate, and a second gas guide cavity is formed in the second gas guide plate. A second air guide cavity is formed in the second air guide plate, the second air guide cavity is connected with the first air guide cavity in a penetrating mode, a bearing pipe is movably installed on the surface of the second air guide plate through a sealing bearing, the bearing pipe is connected with the second air guide cavity in a penetrating mode, and a heat preservation plate is arranged on the surface of the inner wall of the device body. According to the smelting furnace, the first gas guide plate, the first gas guide cavity, the second gas guide plate, the second gas guide cavity and the bearing cylinder are used in cooperation, waste heat of smoke of the smelting furnace can be utilized conveniently, aluminum ingots needing to be smelted are preheated, and therefore the utilization amount of resources is increased.

The utility model relates to the technical field of non-woven fabric drying equipment, in particular to a low-energy-consumption non-woven fabric drying device which comprises a drying unit, air inlet pipes, an exhaust pipe and an induced draft fan. The opening end of the air inducing pipe extends to the position above the center position of the cloth outlet end of the drying unit, the opening end of the air inducing pipe is connected with a flow equalizing component, and the flow equalizing component is arranged parallel to the cloth outlet direction, so that a cooling gap used for cold air flowing is formed between the flow equalizing component and the non-woven fabric; cold air above the cloth outlet end of the drying unit converges towards the opening end of the air inducing pipe and flows along the cooling gap, the flowing cold air makes contact with the non-woven fabric to cool the high-temperature non-woven fabric, meanwhile, the cold air exchanges heat with the high-temperature non-woven fabric, the effect of preheating the cold air is achieved, and the energy consumption needed by the drying machine for heating the cold air is reduced.

The utility model discloses a tomato juice evaporation concentration system, the outlet of tomato juice raw solution pipe is connected with the top feed inlet of primary falling film evaporator through feed pump, the cold side of condensate water preheater, and the bottom outlet of primary falling film evaporator and its separator is connected with the top feed inlet of primary falling film evaporator through primary falling film circulating pump, the inlet of primary falling film circulating pump still links through primary falling film discharge pump, TVR circulating pump, the pipe of secondary forced evaporator with the lateral wall inlet of secondary forced separator, and the bottom outlet of secondary forced separator is circulated through TVR circulating pump, still links through secondary discharge pump and tomato juice concentrated liquid discharge pipe, and the secondary steam export of primary falling film separator is connected with the shell course inlet of primary falling film evaporator through steam compressor, and the secondary steam export of secondary forced separator is connected with the shell course inlet of secondary forced evaporator through steam jet pump. The system has high heat utilization rate, and the capacity is big, reduces the density fluctuation of discharge while reducing energy consumption.