43results about How to "Play a warm-up effect" patented technology

The invention discloses a culvert raw material delivery and smoke dust recovery device and method for a smelting container. The device comprises a raw material delivery trough, wherein, the upper part of the raw material delivery trough is equipped with a sealing cover; a raw material delivery and flue gas circulation channel is formed between the sealing cover and the raw material delivery trough; and at least one settling chamber for settling dust in flue gas is communicated above the sealing cover. In the invention, the flue gas enters the settling chamber through a channel composed of theraw material delivery trough and the sealing cover, the flow velocity of the flue gas is reduced in the settling chamber and rotational flow or refraction is formed; and part of the dust in the flue gas falls on the surfaces of raw materials to be taken back to the melting container, thus improving the utilization ratio of the raw materials and the utilization effect of a subsequent flue gas waste heat boiler, lowering load of a subsequent dedusting system and reducing equipment maintenance. The invention is applicable to an electric furnace for smelting steel scrap and is also suitable for other smelting containers with smelting characteristics.

The invention relates to the technical field of coke oven flue gas treatment, in particular to a coke oven flue gas treatment system, comprising a coke oven main body, a dust collector is arranged on one side of the coke oven main body, and a coke oven main body and a dust collector are arranged between the coke oven main body and the dust collector. A connecting pipe is connected, a charging pipe is arranged on the surface of the main body of the coke oven, one end of the charging pipe is provided with an opening, and the inside of the charging pipe is movably connected with a charging smoke blocking device. The dust collector is provided with a filter screen, a heat sink, an auger, a motor and a fan, etc., so that the particulate matter in the flue gas can be separated and sent to the combustion furnace for combustion again, avoiding excessive waste of resources. The coke oven flue gas treatment system of the present invention can prevent flue gas from escaping from the furnace when adding fuel, can protect the environment, and can reduce the harm of flue gas to staff.

The invention discloses a treatment method for recycling waste emulsion explosives. The steps of the method are as follows: S1: add waste emulsion explosives and water to a separation device, and heat the waste emulsion explosives through a heating cycle system; S2: add Demulsifier, stirring and demulsifying the material at the same time; S3: After the demulsification is completed, the separation device is used to separate the waste material matrix and the water phase; S4: The water phase in the S3 is transported to the water phase preparation tank for demulsification. Preparation of water phase; S5: use the waste matrix in S3 as the raw material for ammonium oil explosives, or add it and normal matrix into the waste sensitizer, add foaming agent and accelerator to sensitize again, and re-sensitize Get qualified emulsion explosives. The treatment method of the invention has the advantages of good oil-water separation effect, simple operation and the like.

The invention belongs to the technical field of steel structure installation, especially a welding equipment for steel structure installation. The following proposal is proposed, including an operation table and a hanging plate. The outer wall of the bottom of the hanging plate is fixedly connected with a No. 1 hydraulic rod, and a The outer wall of the bottom of the hydraulic rod No. 2 is fixedly connected with a welding torch, and the outer wall of the bottom of the suspension plate located at both ends of the welding torch is fixedly connected with a No. 2 hydraulic rod. The present invention is provided with a rotating motor, a rotating shaft, an extrusion roller, an air cylinder and a sliding rod. Before the installation and welding of the steel structures, the two steel structures are stacked together, and the two steel structures are stacked together through the hierarchical extrusion assembly and the lower support plate below. Carry out clamping and fixing, after fixing, start the rotating motor, and the rotating motor drives the extrusion roller to rotate through the rotating shaft, so as to move and squeeze the steel structure, eliminate the gap between the two before, and prevent the welding effect from being reduced due to the gap after welding. Thereby ensuring the firmness between the steel structures after welding.

The invention relates to a sludge treatment apparatus for a water conservancy project. The sludge treatment apparatus comprises a transport apparatus, a stirring chamber, a transport pipeline part, a sludge filter chamber, a sludge mixing and drying part, a mixing and granulating chamber and a ceramsite heating chamber. By arranging various parts, the sludge treatment, the ceramsite preparation from sludge and the ceramsite forming can be continuously carried out, so that not only can the sludge containing heavy metal be removed and the secondary pollution of the sludge to a water body be avoided, but also heavy metal elements are secondarily utilized for the ceramsite, and the harmful sludge can be actually turned into benefit.

The invention belongs to the technical field of vehicle manufacturing, and relates to a welding process for the front and rear sub-frames of lightweight dissimilar aluminum materials. During welding, the flat corner welds are welded first, and then the vertical corner welds are welded. The heat input at the position where the flat corner welds are welded first can play The effect of preheating the casting increases the depth of penetration and avoids the occurrence of non-fusion defects. The weight of the front and rear sub-frames after welding through this welding process is only one-third of the original, which reduces the weight of high-end vehicles and increases the weight of the entire vehicle. The cruising range, and the front and rear sub-frames are corrosion-resistant, do not need anti-rust paint, reasonable welding sequence and welding parameters effectively control the welding deformation, provide a reliable welding process for the connection of dissimilar aluminum materials, and ensure welding quality.

The invention relates to the technical field of a coal sample detecting device, in particular to a gas-saving type protective gas drying box. The gas-saving type protective gas drying box comprises a plurality of drying cavities, a main air inlet pipe, a main exhaust pipe and a control unit. Gas channels of the plurality of drying cavities are arranged in series. The main air inlet pipe is used for pumping protective gas into the plurality of drying cavities and the protective gas after use is discharged through the main exhaust pipe. A heating component is arranged in each drying cavity. The control unit is used for controlling the heating speed of each heating component and the on-off of the main air inlet pipe. According to the gas-saving type protective gas drying box provided by the invention, the repeated usage of the protective gas can be realized, the usage amount of the protective gas can be greatly saved, the cost can be saved and the labour intensity of the operating personnel can be reduced. The protective gas carries a part of heat when getting into one drying cavity from another drying cavity, so that a preheating effect can be played and the warming time of the drying cavity where the protective gas enters is shortened. Accordingly, the electric energy consumption can be reduced and the cost can be further saved.