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A few kinds of iron remover cleaning methods to share, I hope to help you!
published date: 2019/5/10

Mineral processing equipment

PTMS MAGNETIC SEPARATOR

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Introduce several simple methods for cleaning the iron remover. First, let me talk about the following requirements for the cleaning of the iron remover: 1. The surface of the magnetic source or magnetically absorbing medium is smooth and clean, and there is no mud on the surface after cleaning. 2. Energy saving and environmental protection. During the cleaning process, the cleaning time is short, the consumption of washing water is small, and the environmental pollution is small. 3. The iron should be thorough. In the design of the iron removal passage of the iron remover, the cleaned sewage must be completely discharged from the machine, and the impurities in the sewage cannot be precipitated in the passage, thereby affecting the iron removal effect. 4. High degree of automation. It can automatically judge the cleaning cycle, automatic cleaning and automatic treatment of sewage is the trend of iron separator development. 5. Simple structure. For installation and use, cleaning is easy, the structure of the equipment should be easy to install and disassemble and internal inspection and cleaning. Second, the method of cleaning the iron removal equipment 1 Electromagnetic iron removal machine cleaning The electromagnetic iron removal machine is a semi-automatic iron removal machine, which removes the magnetic impurities in the slurry through the current magnetic field generated by the DC excitation power supply. At present, the cleaning of the electromagnetic iron remover is performed after the power is cut off, and the iron absorption medium is taken out for manual cleaning. Since the electromagnetic iron remover can generate a relatively high magnetic field, it is necessary to take out and clean the honeycomb structure of the honeycomb structure after every period of time (generally 10 to 15 minutes). The iron-absorbing medium is composed of a grid plate. As the core of the electromagnet, in order to improve the iron removal efficiency, the grid plates are generally arranged in a dense manner, and the cleaning in the cavity is difficult. It is difficult to clean the honeycomb structure of the honeycomb structure, and it must be cleaned by power failure. It is difficult to achieve continuous iron removal in a single machine. 2 Magnetic rod cleaning Magnetic rod removal is a kind of iron removal method in which the magnetic source directly contacts the slurry to achieve the iron removal effect, and the cleaning is performed under the magnetic state. In the process of cleaning, it is necessary to overcome the relatively large adhesion. According to the theory of magnetic force, when the magnetic field is stronger, the surface area is larger, and the more ferromagnetic impurities are accumulated, the higher the ferromagnetic impurity k value, the greater the adsorption force. It is more difficult to clean. Since the magnetic bar must be magnetically cleaned, even the cleaning method using the high-pressure water jet magnetic bar cannot be thoroughly cleaned, and the high-pressure water shock accelerates the demagnetization of the magnetic bar, so it can only be manually cleaned. For a general ceramics factory, the number of magnetic bars is as large as hundreds of thousands, and manual cleaning is labor intensive. In order to solve this cleaning problem, there is a fully automatic magnetic rod cleaning machine on the market which divides the magnetic rod into two zones. The working area is the magnetic absorption area. When cleaning, the scraper is driven by the mechanical structure to scrape the impurities into the non-working area, that is, without the magnetic area. At this time, the impurities are separated from the magnetic force, so only a small amount of water can be used for cleaning. Clean the impurities on the magnetic bar. The automatic scraper iron removing machine greatly reduces the labor consumption caused by the manual cleaning, and the cleaning cycle is controllable, but the one-time investment is large, and the iron removing effect is difficult to be improved. 3 Ultrasonic cleaning The principle of ultrasonic cleaning is that the high-frequency oscillating signal emitted by the ultrasonic generator is converted into high-frequency mechanical oscillation by the transducer and propagates to the iron-absorbing medium. The ultrasonic waves are radiated in the cleaning liquid in a dense manner. The liquid flows to generate tens of thousands of tiny bubbles (cavitation nucleus) and vibrates under the action of the sound field. When the sound pressure reaches a certain value, the bubble grows rapidly, then suddenly closes, and when the bubble is closed, a shock wave is generated around it. Thousands of atmospheric pressure can be generated. When the group particles adhere to the surface of the cleaning member, the solid particles are separated by atmospheric pressure, thereby achieving the purpose of cleaning the surface. Ultrasonic cleaning is used to clean and clean the electromagnetic honeycomb cell. If the transducer is placed in the electromagnetic iron remover, the cleaning of the iron absorption medium can be completed in the cavity, and even the electromagnetic iron remover which is automatically cleaned after the power is cut off can greatly improve the efficiency; for the permanent magnet iron remover Ultrasonic cleaning can also eliminate the process of sieving the slurry; the ultrasonic wave can also clean the magnetic source under the magnetic state, which has a significant effect on the cleaning of the ferromagnetic bar. In order to apply the ultrasonic cleaning principle to the iron removing machine, the structural design problem must be solved, and the cost is relatively high, so the ultrasonic cleaning method has not been applied to the cleaning of the slurry removing machine. The device can use a magnetic field with a high magnetic field and generate a higher working magnetic field, but does not affect the cleaning effect. In order to enhance the iron removal effect of the iron removing machine, the structure of the iron absorbing medium is generally complicated, and the ingenious high pressure cleaning device is adopted because of the large number of filaments.

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