30results about How to "Efficient slag removal" patented technology

The invention discloses a refining flux used for purifying and processing aluminum or aluminum alloy melt, and its preparation method. The invention is characterized in that the raw material formula of the refining flux is a powder mixture composed of the following components by mass: 25 to 35% of NaCl, 25 to 35% of KCl, 15 to 25% of Na3AlF6 and / or K3AlF6, 4 to 10% of Na2SO4 and / or K2SO4, 3 to 10% of CaCO3 and / or Na2CO3, 3 to 6% of REF3 and / or RECl3; wherein, a mass ratio of NaCl to KCl is 1:1; RE is Ce or La. The refining flux can be fully diffused after entering the melt without adsorption agglomeration and pore plugging; and has high efficient capability for producing dry slag without viscous aluminum melt; even the refining flux has a slight reaction with aluminum melt, the reaction products can be removed with slag; the refining flux provided in the invention has high efficiency of gas and slag removing.

A magnetic bar self-rotation type permanent magnet filter is disclosed. A magnetic chain is driven by a motor drive mechanism to periodically reciprocate and to enter the liquid in a tank body used for storing cold rolling cooling liquid so that metal dust in the cooling liquid is adsorbed. A decontamination mechanism is disposed on the magnetic chain mechanism and is in contact with a decontamination segment, above the liquid level, of the reciprocating magnetic chain in a manner that the decontamination mechanism and the plane where the upper surface of the magnetic chain is are perpendicular to each other or arranged with a certain included angle, and in this process, each magnetic bar moves in a direction perpendicular to the length direction of the magnetic bar and rotates itself at the same time to scrape metal dust off the magnetic bar. Magnetic bar deformation or damage caused by rigid contact with the decontamination mechanism in a magnetic bar movement process, and device failure breakdown caused when the decontamination mechanism is stuck in the magnetic bar transmission chain can be prevented. In addition, the overall size of the device can be greatly reduced, the operation speed and follow-up effect of the magnetic chain mechanism are significantly improved, and the device has wider applicability.

The invention discloses a guide hole reaming suspension cutting TBM for inclined shafts and a construction method, which solves the problem of low expansion and excavation efficiency of inclined shaft guide holes in the prior art. The guide hole reaming suspension cutting TBM for inclined shafts of the present invention includes a central main beam and a suspension cutting expansion cutterhead. The part of the beam located at the rear of the hanging cutting and expanding cutter head is connected with a propulsion system, an active boot device and a safety shoe device, and the rear part of the safety shoe device is connected with a rear supporting device. The present invention aims at expanding and excavating the pilot tunnel from top to bottom, adopts the hanging cutting and expanding excavation cutter head to carry out the layer-by-layer hanging cutting and excavation of the rock formation around the pilot tunnel, improves the efficiency of cutting and expanding excavation, and the hanging cutting and expanding excavation cutter head changes the traditional The principle of rock breaking by TBM hob rolling utilizes the characteristics that the shear strength of rock is much smaller than the uniaxial compressive strength and rock breaking on the air surface, and adopts the suspension cutting hob to break rock to improve the rock breaking efficiency and rock breaking specific energy.

The invention provides the method of removing liquid steel scum, comprising the following steps: dragging the scum from liquid steel liquid level with harrow rotary dragging method, at the same time, adding the anti-oxidization agent on the clean liquid steel surface. Because of adopting the harrow rotary dragging method, the invention solves the problems of big loss of scarfing cinder, hard operation and heavy labor strength. Adding the anti-oxidization agent avoids the secondary oxidization of liquid steel. The method uses the freezing slag agent to solidify the liquid slag. It strengthens the effect of removing slag.

The invention discloses a hollow TBM cutter head, a TBM for expanding and digging a pilot hole for an inclined shaft, and a construction method. The TBM for expanding and digging a pilot hole for an inclined shaft includes the hollow TBM cutter head and a main beam connected to a shield body And the main drive, the main drive is connected with the hollow TBM cutter head, and the main beam is provided with a front support device, a double support shoe mechanism and a bottom support in sequence from front to back. It also includes a rear supporting device, a first safety device and a second safety device are connected between the rear supporting device and the main girder, and the first safety device and the second safety device are arranged in series. The invention adopts the TBM method to expand and excavate the pilot tunnel, gets rid of the drilling and blasting excavation method, improves the quality of the tunnel, reduces the disturbance to the surrounding rock, reduces potential safety hazards, and improves the efficiency of expanding and excavating the pilot tunnel.

The invention discloses a shaft expansion excavator and a construction method thereof. The shaft expansion excavation machine includes a derrick and a main engine, the derrick is connected with the main engine through a winch mechanism, and the main engine includes a central column that can be used as a slag discharge channel. The lower part of the main engine is equipped with a cutter head system and propulsion device, the upper part of the main machine is equipped with a slag discharge system and a support system, the lower part of the central column is connected with the cutter head system, and the upper part corresponds to the slag discharge system. The invention has ingenious design, high driving efficiency and greatly shortens the excavation expansion period, is a great innovation in the expansion and excavation of shafts, and has high popularization value.

The invention discloses a free section hard rock excavation equipment, which solves the problem of low excavation efficiency of a super large section shaft in the prior art. The invention includes a mobile car body, the front end of the mobile car body is hinged with a connecting frame, the connecting frame is provided with a drum-type cutter head, the connecting frame is connected with the mobile car body through a telescopic drive mechanism, and the drum-type cutter head is connected to the mobile car body. The slag conveying mechanism on the car body is corresponding. Preferably, the mobile vehicle body is provided with a cab and a base, the base is located at the front of the cab, the connecting frame is hinged on the base, and the bottom of the mobile vehicle body is provided with a crawler walking mechanism. The invention realizes the flexible and high-efficiency excavation of the hard rock section through the excavation of the drum type cutterhead and the movement of the crawler, is suitable for the excavation of shafts with super large sections and free sections, and reduces equipment investment. A certain number of slag outlets are set along the circumference of the drum-type cutter head, through which the rock slag is transported to the rock slag conveying mechanism and discharged to the rear of the equipment to achieve efficient slag discharge.

The invention discloses a high-vanadium steel continuous casting flame cutting process. The high-vanadium steel continuous casting flame cutting process includes the following steps of preheating, wherein preheating oxygen and fuel gas are conveyed to a cutting gun, the fuel gas is ignited to form preheating flames, and a casting blank is preheated; precutting, wherein combustion supporting oxygenand fuel gas are conveyed to the cutting gun, the preheating oxygen stops being conveyed, cutting flames are formed, and the lengths of the flames are adjusted until the flames penetrate through thecasting blank; and cutting, wherein when the flames penetrate through the casting blank and slag flows to a slag removal tank, the cutting gun is moved and a slag removal gun is started until cuttingoperation is completed, the lengths of the flames can be adjusted according to the thickness of the casting blank, the distances between the flames are matched with the thickness of the casting blank,and the cutting quality of the casting blank is guaranteed.

The invention discloses a slag removal device for refining aluminum liquid. A slag body collection basket is movably sleeved on the lower end of a rotating cylinder, and the slag removal device can be taken out from the furnace by observing the aluminum liquid level without scum. At this time, it is first necessary to close the rotary slag removal head device. During the retraction process of the rotary slag removal head device, each piece of the rotary slag removal head device rotates around the connecting shaft, and the inner end of the rotary slag removal connection cylinder of each piece of rotary slag removal head device The outlet will tilt downward to introduce the slag into the rotating cylinder, and collect it into the slag collection basket through the rotating cylinder. After each slag removal, you only need to clean the slag collection basket and then use it next time. The folding of the device is not only to realize the folding, but also to collect the scum, so as to facilitate the centralized treatment of the scum, which truly realizes the automation and convenience of scum removal, and greatly reduces the labor intensity of workers.

The invention discloses a reinforcement process method for pile bottom sediment removal of a pouring pile. The reinforcement process method comprises the following steps: forming at least one sediment removal hole in the top of a pile body, and ensuring that the sediment removal hole extends to a pile bottom sediment layer; installing sediment removal equipment in place, stretching a water tube and a gas tube from the sediment removal hole and enabling tube orifices to approach to a hole bottom position; starting water supply equipment, and carrying out high-pressure water jetting on the pile bottom sediment layer through the water tube to complete primary sediment removal treatment; starting gas supply equipment, charging a high-pressure gas in the pile bottom sediment layer and carrying out the high-pressure water jetting on the pile bottom sediment layer through the water tube and the gas tube, and completing secondary sediment removal treatment through the double processes of high-pressure water jetting and gas lift circulation; pulling away the water tube and installing a grouting tube in situ, starting grouting equipment and the gas supply equipment simultaneously, and carrying out reinforcement treatment on the pile body through a gas-injecting and grouting method; and stopping the equipment when a grout overflows from the orifice of the sediment removal hole. The reinforcement process method disclosed by the invention is capable of realizing efficient and thorough elimination for pile bottom sediments, good in sediment removal effect, and capable of increasing the structural strength of the pile body, meeting safety indexes, and meeting the requirements of construction technical indexes.

The invention discloses a laser cutting machine, which comprises a fixed chuck, a laser cutting head located on the right side of the fixed chuck, a movable chuck located on the left side of the fixed chuck, a slag remover and an air pump located on the right side of the laser cutting head Device; the slag remover is provided with an inner cavity, an air suction inlet and an air extraction pipe, the air extraction inlet is located on the left side of the slag remover and communicates with the inner cavity, one end of the air extraction pipe is connected with the inner cavity, and the other end is connected with the air extraction device. In addition, a method for removing slag is provided, which includes the following steps: start the suction device to pump air into the inner cavity of the slag remover; drive the slag remover to move relative to the metal pipe, so that the suction inlet of the slag remover and one end of the metal pipe Connected, the lumen of the metal tube is pumped. Compared with the method of inserting the chip removal pipe into the metal pipe for chip removal, the present invention uses the cut metal pipe as a part of the slag remover. The inner diameter of the metal pipe is larger than the inner diameter of the chip removal pipe. When the metal pipe is vacuumed, the metal The lumen of the tube is relatively easy to achieve the ideal vacuum degree, which can improve the effect of debris removal.