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The present invention relates to the technical field of air humidification equipment, specifically an air humidification component and an air purification and humidification integrated machine, the air humidification component includes a water tank, an evaporation component and a windshield, an annular enclosure is provided around the bottom air inlet in the water tank, the annular enclosure cooperates with the water tank to form an annular water tank, the evaporation component includes an annular evaporation cylinder made of wet film material, the evaporation cylinder is inserted in the annular water tank and sleeved on the outside of the annular enclosure, the upper part of the evaporation cylinder is higher than the annular water tank, and the windshield covers the top of the evaporation cylinder, so that the airflow will pass through the evaporation cylinder to humidify the airflow; the air purification and humidification integrated machine includes an air purifier and the above-mentioned air humidification component, the air humidification component is installed on the air purifier and the air inlet of the air humidification component is connected to the air outlet of the air purifier. The beneficial effects of the present invention are: large humidification capacity, no pollution to furniture, easy maintenance, low cost, saving home space, clean and safe.

The present invention relates to the technical field of steel cord conveyor belts, and in particular to a vulcanization process for steel cord conveyor belt joints, wherein the vulcanization process includes the following steps in sequence: a first pressurization and temperature increase step, a first constant temperature and pressure step, an exhaust step, a second pressurization and temperature increase step, a second constant temperature and pressure step, and a natural cooling step. By providing an exhaust step, the exhaust step discharges the water vapor generated in the steel cord conveyor belt joint, ensuring that no bubbles are generated in the steel cord conveyor belt joint, improving the vulcanization quality of the steel cord conveyor belt joint, and improving the service life of the steel cord conveyor belt; at the same time, the present invention undergoes two pressurization and temperature increase steps and a constant temperature and pressure step, and the pressure and temperature gradually increase and rise, further improving the vulcanization quality of the steel cord conveyor belt joint, and significantly improving the service life of the steel cord conveyor belt.

The utility model discloses a production system for co-production of phosphorus pentoxide and hot-process phosphoric acid, and belongs to the technical field of phosphorus chemical industry. The system comprises a phosphoric acid production device and a phosphorus pentoxide production device, the phosphoric acid production device comprises a yellow phosphorus storage tank, a settling tank, a first phosphorus combustion tower, a hydration structure and a first tail gas treatment structure, and the phosphorus pentoxide production device comprises a rotary vibration sieve, a second phosphorus combustion tower, a cooling tower, a settling tower and a second tail gas treatment structure. The first phosphorus combustion tower and the second phosphorus combustion tower are both provided with steam pockets, heaters are arranged in the yellow phosphorus storage tank and the settling tank, the hydration structure comprises two stages of hydration mechanisms, and the hydration mechanism comprises a hydration tower, a heat exchanger and a circulating tank; a feeding hole of the rotary vibration sieve is connected with a discharging hole in the bottom of the cooling tower, a coarse material outlet of the rotary vibration sieve is connected with a circulating groove of the primary hydration mechanism through a conveying structure, and a wastewater outlet of the second tail gas treatment structure is connected with a circulating groove of the secondary hydration mechanism; a feeding hole of the second phosphorus burning tower is connected with the yellow phosphorus storage tank; and the steam pocket is connected with the heater.

The invention provides power part liquid filling pipe seal welding equipment and a welding process, and relates to the technical field of temperature controller production equipment.The welding equipment comprises a welding platform and a welding device; the welding platform comprises a fixed base, a rotating part arranged on the fixed base, a welding workbench driven by the rotating part to rotate and a clamping part arranged on the welding workbench, and the clamping part comprises a plurality of clamping assemblies arranged along the circumference of the welding workbench; the welding device comprises a material positioning part, a welding rod feeding part, a welding rod positioning part, a high-frequency welding part and a discharging part which are sequentially arranged. The welding device and the welding platform are matched to form automatic welding of the sealing of the liquid filling pipe of the power part, the production efficiency is high, and the production quality is improved conveniently; moreover, the sealing welding process is improved, and the sealing round edge is arranged at the sealing end to replace the operation of manually adding the welding wire to the temperature sensing cylinder, so that the production steps of the welding process are reduced, and the production difficulty is reduced.

This invention discloses a method for recycling waste polyurethane materials and a method for preparing polyurethane products, belonging to the technical field of waste polyurethane material recycling and reuse. The recycling method includes: a powder preparation stage, where waste polyurethane materials are pulverized using a pulverizing device to obtain polyurethane powder; a premix preparation stage, where the polyurethane powder is mixed with a degrading agent, catalyst, and co-solvent in a specific ratio, and then mixed uniformly using a stirring device to obtain a premix with a certain powder content; and a degradation stage, where the premix is ​​ground, extruded, and sheared using equipment with mechanical shearing and extrusion functions, the reaction process is carried out within a set temperature range, and after the reaction is completed, a degraded polyurethane mixture is obtained. In the method for preparing polyurethane products, part or all of the polyol raw material is taken from the degradation mixture. This invention achieves low reagent consumption, low temperature and short time degradation, no need for gas protection, and no generation of toxic substances such as aromatic amines. The resulting high-performance heterogeneous polyol can be directly used in the preparation of polyurethane products without any post-processing.