43results about How to "Not easy to bring in" patented technology

The invention belongs to a hot-pressing sintering method and a mold for products with holes in ceramics and hard alloys. The method includes firstly cold-pressing the powder into a green body, coating with a release agent, installing it on each layer of the hot-pressing mold and piercing the mandrel, loading the upper and lower punches, and then placing it in a hot-pressing mold. The machine is hot-pressed and sintered at 10-50MPa pressure and 1200°-2000°C. The mold includes a mold sleeve, a partition and a mandrel arranged in the mold cavity, and upper and lower punches. The invention adopts multi-layer, multi-layer hot-press molds to be sintered and formed on a hot press machine, which has the advantages of not being easy to bring in impurities during the production process, good product quality, neat appearance, and more than 100 products with holes can be hot-pressed and sintered at one time , the production cost is low, the production efficiency can be increased by ten to dozens of times compared with the background technology, and the mold life is long. It overcomes the drawbacks of the background technology, such as directly adopting powder hot-pressing sintering, poor product quality, low productivity, high production cost, and short service life of molds.

The invention discloses a boiler flue gas waste heat recovery device and a recovery method, which belong to the technical field of flue gas waste heat recovery. A boiler flue gas waste heat recovery device includes a device shell, and a heat exchange tube is arranged inside the device shell. The upper end of the air inlet pipe is fixedly connected with the air intake pipe. In the process of waste heat recovery of the flue gas, the present invention pushes the main cleaning ball and the auxiliary cleaning ball through the flue gas flow, so that the main cleaning ball and the auxiliary cleaning ball circulate continuously in the heat exchange tube. Rolling, in the process of waste heat recovery, the inner wall of the heat exchange tube is continuously and continuously cleaned, and the flue gas particles attached to the inner wall of the heat exchange tube are cleaned, and when the main cleaning ball and the auxiliary cleaning ball complete a cleaning of the heat exchange tube, In the process of returning to the inlet end of the heat exchange tube, the processes of self-cleaning, dehydration and drying are also realized in sequence, and then enter the heat exchange tube again to clean the heat exchange tube, thereby further ensuring the cleaning effect of the heat exchange tube .

The invention discloses a comprehensive treatment system for chemical emission. The problems of low treatment efficiency and high treatment cost which are caused by a high-cost treatment system and serious energy waste which are caused by the problem of unreasonable treatment modes in the treatment process of three wastes are solved. Key points of the technical scheme of the comprehensive treatment system comprises a sewage treatment system, a sludge regulating and storing tank, a sludge treatment system and an exhaust gas treatment system, wherein sludge in the sewage treatment system is connected with the sludge regulating and storing tank through at least one sludge pump, and the sludge treatment system includes a drying system, a sludge incineration system, an excess heat utilizing system and a flue gas purifying system which are connected sequentially; the exhaust gas treatment system includes a gas collecting device which is used for collecting exhaust gas which is generated in the sewage treatment system and the sludge treatment system, and a gas collecting system is connected with a biologically deodorizing system and at least one level of gas absorption chamber systems sequentially. Not only can emission requirements of multiple aspects be met, but also the utilization of effective energy can be achieved, so that the treatment process is cleaner, and the efficiency ishigh.

The invention relates to the technical field of seasoning processing, specifically to tomato ketchup and its preparation method. The tomato ketchup comprises the following components: by weight, 40-50 of concentrated ketchup, 4-5% of white sugar, 2-4% of acetylated distarch adipate, 0.3-0.6% of salt, 0.05-0.18% of edible acetic acid, 0.05-0.2% of vitamin C, 0.05-0.12% of cochineal, 0.03-0.08% of potassium sorbate, and 40-50% of water. The preparation method of the tomato ketchup comprises the following steps: Step 1, preparing a dissolved solution; Step 2, heating and adding a self-made thickening liquid; Step 3, carrying out gelatinization; Step 4, stirring materials; Step 5, boiling; and Step 6, cooling and adding auxiliary materials. The tomato ketchup has advantages of rich tomato flavor, soft mouthfeel, high nutritive value, anti-cancer efficacy, good stability, excellent quality and long shelf life.

The invention discloses a self-ventilating and heat-dissipating type automobile regulator, belonging to the field of automobile regulators. The invention innovatively arranges a flap-type ventilation frame on the top of the casing, and expands under the action of hot air inside the casing through expanding particles. The position of the gravity ball is changed, so that the center of gravity of the flap-type ventilator is out of balance. Under the action of its own weight, the flap-type ventilator rotates counterclockwise inside the ventilator, and the position of the baffle plate changes, which will enter the ventilator. The external low-temperature gas is driven to the inside of the shell, and at the same time, the hot air entering the ventilator is released to the outside to realize the process of cold and hot ventilation inside the shell. The heat expansion is carried out again, causing the flap-type ventilation frame to rotate for ventilation, that is, the present invention realizes the continuous automatic and efficient heat dissipation process inside the casing, and effectively improves the service life of the regulator.