12results about How to "Improve demagnetization effect" patented technology

The utility model relates to the technical field of powder conveying, and discloses an airflow mill. The airflow mill comprises a shell, an air pipe, an exhaust assembly and a screening assembly. A cavity is formed in the shell; a feeding hole and a discharging hole are formed in the shell, and both the feeding hole and the discharging hole are communicated with the cavity; the exhaust assembly is arranged at the end, close to the discharging opening, of the shell. The screening assembly comprises a screen and a magnet exciting coil. The screen is installed in the cavity and is blocked between the feeding port and the discharging port, the magnet exciting coil is arranged on the outer side of the shell in a surrounding mode, the magnet exciting coil corresponds to the screen in position, and the magnet exciting coil is used for being powered on to generate a magnetic field so that the screen can have magnetism. The screen is arranged between the feeding port and the discharging port in the cavity for blocking, the magnet exciting coil surrounds the position, corresponding to the screen, of the outer side of the shell, the screen has magnetism through the magnet exciting coil, then magnetic particles are adsorbed in the material screening process, demagnetizing operation is conducted on smashed materials, and the magnetic heterogeneity of the smashed materials is reduced.

The utility model discloses a stator punching sheet, a stator core, a motor and refrigeration equipment, and relates to the refrigeration equipment technology field, the stator punching sheet comprises a plurality of punching sheet units, the plurality of punching sheet units are sequentially connected end to end in an annular shape to form the stator punching sheet, each punching sheet unit comprises a stator yoke, stator teeth and tooth boots, and the tooth boots are arranged on the stator yoke. The stator teeth are connected to the stator yokes, the tooth boots are connected to the ends, deviating from the stator yokes, of the stator teeth, the stator teeth are located on the inner circumferential wall of the stator punching sheet, the distance between the outer walls of any two oppositely-arranged stator yokes is D1, the minimum distance between any two oppositely-arranged tooth boots is D2, and D1 is larger than D2. The width of the stator teeth is W1, and the width of the stator yoke is h0. According to the technical scheme provided by the utility model, the overload capacity of the motor is improved, the demagnetization performance of the motor is reduced, the output performance of the motor is improved, and the production and manufacturing cost of the stator punching sheet is reduced.

The utility model discloses a high-solid-content circulating pulping system which comprises a powder feeding system, a liquid feeding system, a multi-screw extruder and a circulating demagnetizing and dispersing system, and the discharging end of the powder feeding system and the discharging end of the liquid feeding system are respectively connected with the feeding end of the multi-screw extruder. And the discharge end of the multi-screw extruder is connected with the feed end of the circulating demagnetizer. According to the high-solid-content circulating pulping system, slurry conveying kneading and circulating demagnetizing dispersion are achieved through the multi-screw extruder and the circulating demagnetizing dispersion system, qualified slurry is produced, and the problems that a traditional homogenizing system circulating pulping system is weak in kneading effect and cannot meet the high-solid-content requirement are solved.

The utility model provides a kind of powder automatic circulation demagnetization equipment and system. Due to the setting of cleaning magnet bar, and the cleaning magnet bar permanent magnet segment has magnetism and is located in the blanking pipe, therefore, in the process of powder conveying downward, part of powder with magnetism is adsorbed by cleaning magnet bar, so that powder can be demagnetized, the setting of multilayer cleaning assembly can increase the demagnetization effect of powder. Cleaning magnet bar moves relative to cleaning ring, and the permanent magnet segment of cleaning magnet bar moves from blanking pipe to waste pipe. When cleaning magnet bar continues to move left, the permanent magnet segment moves relative to cleaning ring. Cleaning ring limits and blocks the powder on the permanent magnet segment from moving with cleaning magnet bar, until the non-magnetic segment on the right side of cleaning magnet bar enters the waste pipe, the powder is no longer adsorbed by cleaning magnet bar, so as to fall downward, and then discharge from waste outlet, so the demagnetization efficiency and quality of powder can be quickly improved.

The utility model discloses a demagnetizing tool for a kiln circulation line, the kiln circulation line is provided with a bottom wall and a roller conveying mechanism, the roller conveying mechanism is arranged above the bottom wall, the demagnetizing tool comprises a non-metal frame body and a magnetic attraction part which are connected with each other, the demagnetizing tool has a preset boundary dimension, and the demagnetizing tool can be placed on the roller conveying mechanism to be conveyed. And metal foreign matters deposited on the bottom wall are adsorbed through the magnetic attraction piece. The demagnetizing tool comprises the non-metal frame body and the magnetic attraction piece which are connected with each other, the demagnetizing tool has the preset boundary dimension, namely, the boundary dimension of the demagnetizing tool is kept consistent with that of the sagger, and during demagnetizing, the demagnetizing tool is placed on the roller conveying mechanism to run to all stations to attract metal foreign matter deposited on the bottom wall, so that the metal foreign matter is separated from the sagger. The demagnetizing efficiency is high, demagnetizing dead angles do not exist, and the efficient demagnetizing effect is achieved; and an upper cover of the kiln circulation line does not need to be opened like a traditional manual demagnetizing mode, so that the risk of introducing other foreign matters is avoided.

The utility model relates to the field of coated asphalt production, in particular to a demagnetizing box capable of effectively demagnetizing, which comprises a box body, a demagnetizing device and a magnetic core body. When the demagnetizing device is used, raw material oil is guided into the demagnetizing cylinder from the raw material oil inlet and then flows out from the raw material oil outlet, the raw material oil flows through the plurality of demagnetizing devices in the process, and the permanent magnet rods on the magnetic core bodies in the demagnetizing devices can demagnetize the raw material oil. Therefore, the demagnetizing effect is improved. And the permanent magnet rod is detachable, so that the permanent magnet rod is convenient to clean and replace. Besides, two improved demagnetizing boxes can be installed on a raw oil pipeline in parallel, one demagnetizing box is used, the other demagnetizing box is standby, permanent magnet rods on magnetic cores in the demagnetizing devices in the demagnetizing boxes are alternately cleaned, raw oil entering a production device is demagnetized, and therefore it is guaranteed that the magnetic content of coated asphalt products is within the qualified range.

The utility model relates to a demagnetizer with an internal spiral blade, which comprises a demagnetizer pipe body, a demagnetizing coil arranged outside the demagnetizer pipe body and connecting flanges arranged at two ends of the demagnetizer pipe body, and is characterized in that the internal spiral blade is arranged in the demagnetizer pipe body. The demagnetizer disclosed by the utility model has the advantages that ore pulp flows through the demagnetizer pipe body, a variable demagnetizing magnetic field is generated under the action of the coil, and iron ore particles in the ore pulp are demagnetized under the action of the demagnetizing magnetic field. The inner spiral blade arranged in the demagnetizer pipe body prolongs the route length of ore pulp flowing through the demagnetizing coil, so that the ore pulp can obtain longer demagnetizing time, the demagnetizing effect is improved, meanwhile, the ore pulp flows through the spiral blade in the demagnetizing coil, disturbance to the ore pulp is intensified, and magnetic agglomeration in the ore pulp is dispersed more easily.

The utility model relates to the technical field of demagnetizing protection, in particular to a voltage transformer demagnetizing protection structure which comprises a fixing frame, a sliding groove is formed in the top of the fixing frame, a moving block is movably connected to the inner wall of the sliding groove, a supporting column is fixedly connected to the top of the moving block, a fixing plate is fixedly connected to the top of the supporting column, and a fixing plate is fixedly connected to the top of the fixing plate. A threaded groove is formed in the top of the fixed plate, a bolt is in threaded connection with the inner wall of the threaded groove, and a movable plate is fixedly connected to the bottom of the bolt. According to the voltage transformer demagnetizing protection structure, through the arrangement of the sliding groove, the moving block, the supporting column, the fixing plate, the bolt, the moving plate and the cleaning brush, when the voltage transformer demagnetizing protection structure is used, a worker can adjust the bolt on the fixing plate, the moving plate drives the cleaning brush to determine the height of the cleaning brush, and then the moving block in the sliding groove is moved; and a cleaning brush cleans the device back and forth, so that the device is convenient to use by workers, and the demagnetizing effect of the device on the voltage transformer is improved.

The utility model discloses an on-line automatic residual magnetism detection mechanism, which relates to the technical field of residual magnetism detection mechanisms and comprises a mounting plate, the top end of the mounting plate is fixedly connected with a rack, the top end of the rack is fixedly connected with a guide rail, the top of the guide rail is slidably connected with a sliding block, and the top end of the sliding block is fixedly connected with a mounting frame. One side of the guide rail is fixedly connected with a translation air cylinder, and the output end of the translation air cylinder is fixedly connected with the sliding block. According to the utility model, through cooperative work of the gauss meter and the demagnetization device, the counting scheme avoids many defects of traditional manual demagnetization, such as low measurement precision, low efficiency, great environmental influence, poor repeatability and the like; the demagnetization effect is optimized through the extension rod, especially on a workpiece with a small L / D value, the demagnetization effect is remarkably improved, the influence of a demagnetization field is reduced, the automatic detection mode not only improves the detection efficiency and precision, but also enhances the objectivity and reliability of detection, and the device is suitable for large-scale production and high-precision detection requirements.

The application relates to a step coupling demagnetization device and a control method, the step coupling demagnetization device comprising a control end, a magnetic force monitor, a demagnetization pipeline and excitation coils, the demagnetization pipeline is provided with a slurry inlet and a slurry outlet, the number of the excitation coils is two or more than two, and each excitation coil is arranged in the demagnetization pipeline in sequence along the slurry flow direction, and the control end is connected with the magnetic force monitor and the excitation coils; the control end is used for outputting excitation currents to excite each excitation coil, generating a periodic oscillation decay magnetic field, forming a demagnetization area with a magnetic field strength gradually decreasing along the slurry flow direction; the slurry enters the demagnetization pipeline through the slurry inlet, is demagnetized and then flows out through the slurry outlet; the magnetic force monitor is used for magnetically detecting the slurry in each demagnetization area and feeding back an electric signal to the control end, and the control end further adjusts the output excitation current according to the electric signal, so that the slurry magnetism in each demagnetization area is maintained in a corresponding preset range, and the demagnetization effect is improved.

The present invention provides a method for demagnetizing a conductive agent, the demagnetizing method comprising the following steps: adding a conductive agent to a mixed solution of a solvent and a dispersant, after a first mixing and a second mixing, an additional solvent is added for a third mixing to obtain a conductive agent slurry; after the conductive agent slurry is demagnetized at least twice, the demagnetization of the conductive agent is completed. The present invention fully considers the intrinsic physical properties of the conductive agent, such as a large specific surface area, a small density, and a strong affinity with the solvent, and adds the solvent twice, and undergoes different preparation processes, so that the conductive agent can be fully dispersed. At the same time, through the wet demagnetization process, the demagnetization effect is improved.

The utility model relates to the technical field of iron removal equipment, in particular to an iron removal machine with a ferromagnetic substance adsorption function, which comprises an electromagnetic box, a magnetic conductive net is arranged in the middle of the electromagnetic box, a coil is arranged in the electromagnetic box, the coil is wound on the outer side of the magnetic conductive net, the upper end of the magnetic conductive net is connected with a feed hopper, and the lower end of the magnetic conductive net is connected with a discharge hopper. The device further comprises a rotating part, a material guide plate, an intermittent discharging plate and a driving part, the rotating part is located in the magnetic conduction net and coincides with the axis of the magnetic conduction net, the material guide plate is connected to the upper end of the rotating part, and the diameter of the material guide plate is gradually increased from top to bottom. By means of intermittent falling of materials, non-uniform demagnetization caused by excessive materials falling at a time can be avoided, meanwhile, the materials falling into the magnetic conduction net are guided to the position near the inner wall of the magnetic conduction net under the action of the material guide plate, the materials are closer to the position, with a stronger magnetic field, near the magnetic conduction net, and therefore the demagnetization effect is improved.