Demagnetizer with internal spiral blade

Abstract

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.

Description

Technical Field

[0001] This utility model belongs to the field of mineral processing equipment, and specifically relates to a demagnetizer with internal spiral blades. Background Technology

[0002] In magnetite beneficiation plants, magnetic agglomeration is a common phenomenon due to the residual magnetism of magnetic minerals after magnetic separation. This causes magnetic and non-magnetic particles to clump together, severely impacting subsequent classification and separation processes. Therefore, demagnetizing the slurry is necessary during beneficiation. To eliminate magnetic agglomeration, demagnetizers are typically used. These demagnetizers effectively demagnetize the slurry, eliminating magnetic agglomerates or chains within magnetic mineral particles, thus improving classification and separation parameters with good results.

[0003] Although the demagnetizing process eliminates most of the magnetism in the iron ore, it does not completely eliminate magnetism, resulting in some iron ore still agglomerating.

[0004] Traditional wet-type pipeline slurry demagnetizers also have the drawback of short residence time of the slurry in the demagnetizing magnetic field, resulting in poor demagnetization effect. Summary of the Invention

[0005] To address the aforementioned issues, this invention proposes a demagnetizer with internal spiral blades, which makes the demagnetized iron ore more dispersed and achieves a better demagnetization effect.

[0006] This utility model is achieved through the following technical solution:

[0007] The specific technical solution of this utility model is as follows: a demagnetizer with an inner spiral blade, comprising a demagnetizer tube, a demagnetizing coil disposed outside the demagnetizer tube, and connecting flanges disposed at both ends of the demagnetizer tube, characterized in that an inner spiral blade is provided inside the demagnetizer tube.

[0008] Preferably, the demagnetizer with helical blades is characterized in that: the inner helical blades penetrate through the demagnetizer tube.

[0009] Preferably, the inner helical blade is made of a non-magnetic material.

[0010] The beneficial effects of this invention are as follows: As the slurry flows through the demagnetizer tube, a changing demagnetizing magnetic field is generated under the action of the coil. The iron ore particles in the slurry are demagnetized under this magnetic field. The inner spiral blades located inside the demagnetizer tube extend the path of the slurry through the demagnetizing coil, allowing for a longer demagnetizing time and improving the demagnetizing effect. Simultaneously, the spiral blades inside the demagnetizing coil intensify the disturbance to the slurry, making it easier to disperse magnetic agglomerates within the slurry. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] The following detailed description of the implementation of this utility model, in conjunction with the accompanying drawings, does not constitute a limitation on this utility model, but is merely an example. Furthermore, the advantages of this utility model will become clearer and easier to understand by explaining them.

[0013] As shown in the figure, the specific technical solution of this utility model is as follows: a demagnetizer with internal spiral blades, comprising a demagnetizer tube 2, a demagnetizing coil 1 disposed outside the demagnetizer tube 2, and connecting flanges 3 disposed at both ends of the demagnetizer tube 2, characterized in that an internal spiral blade 4 is provided inside the demagnetizer tube 2. The connection between the demagnetizing coil and the controller in this utility model is prior art and will not be described in detail here.

[0014] The demagnetizer with inner helical blades of this utility model is characterized in that: the inner helical blade 4 penetrates through the demagnetizer tube 2, and the inner helical blade is made of a non-magnetic material.

[0015] This invention extends the path length of the slurry through the demagnetizing coil by setting an inner spiral blade 4 inside the demagnetizer tube 2, allowing the slurry to obtain a longer demagnetizing time and improving the demagnetizing effect. At the same time, the spiral blade inside the demagnetizing coil intensifies the disturbance to the slurry, making it easier to disperse the magnetic agglomerates inside the slurry.

[0016] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A demagnetizer with internal helical blades, comprising a demagnetizer tube body, a demagnetizing coil disposed outside the demagnetizer tube body, and connecting flanges disposed at both ends of the demagnetizer tube body, characterized in that, The demagnetizer tube is equipped with an inner spiral blade; the inner spiral blade penetrates the demagnetizer tube.

2. The demagnetizer with internal helical blades according to claim 1, characterized in that, The inner helical blades are made of a non-magnetic material.

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