CN217103453U - Superconducting magnetic separation water treatment system - Google Patents
Superconducting magnetic separation water treatment system Download PDFInfo
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- CN217103453U CN217103453U CN202123099830.9U CN202123099830U CN217103453U CN 217103453 U CN217103453 U CN 217103453U CN 202123099830 U CN202123099830 U CN 202123099830U CN 217103453 U CN217103453 U CN 217103453U
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Abstract
The utility model provides a superconductive magnetic separation water processing system belongs to magnetic separation technical field, it adds magnetic system to treat the separation water through filtration system entering in advance, form magnetic substance with the adsorbent complex, then treat the separation water and evenly get into through scattering the device and select separately the chamber, the water is through selecting separately the chamber, magnetic substance is attached to and selects separately the chamber, select separately the chamber and adsorb the saturation back, the chamber of selecting separately of attaching magnetic substance shifts out the magnetic field through mechanical control, material cleaning system washs through the port department, handle and accomplish the water and discharge at the delivery port, magnetic substance carries out the desorption through desorption separator, adsorbent after the desorption can add and add used repeatedly in the magnetic system, the last separator of desorption retrieves through recovery unit.
Description
Technical Field
The invention belongs to the technical field of magnetic separation, and relates to a superconducting magnetic separation water treatment system, in particular to a superconducting magnetic separation water treatment system for separating substances to be separated from a nonmagnetic water body in a superconducting magnetic field, which can be used as a strong magnetic separation system in the fields of agricultural phosphorus removal and the like.
Background
At present, the eutrophication problem of water body in China is increasingly serious, and phosphorus pollution is an important cause of the eutrophication problem. On the other hand, phosphorus has few natural circulation pathways in nature, resulting in an increasing scarcity of terrestrial phosphorus resources. Therefore, the research on how to recover the phosphorus element from the wastewater has important practical significance. The commonly used sewage dephosphorization technology emphasizes pollution treatment at present, but neglects phosphorus resource, leads to the generation of a large amount of phosphorus-containing sludge, not only increases the treatment cost, but also causes phosphorus resource waste.
The magnetic separation technique is a technique of subjecting a substance to magnetic field treatment, and the application of the technique has penetrated various fields. The magnetic separation utilizes the magnetism of impurity particles in the wastewater to separate, and for non-magnetic or weakly magnetic particles in the water, the particles can be made to have magnetism by utilizing a magnetic inoculation technology. Under the action of an external magnetic field, magnetic suspended solids in the wastewater are separated, so that the aim of purifying the water is fulfilled.
At present, the magnetic separation device can be divided into permanent magnet, traditional electromagnetic and superconducting magnetic separation equipment according to the generation mode of a high gradient magnetic field. Permanent magnets and traditional electromagnets generally can only provide magnetic field strength within 1.5T, and separation of fine weakly magnetic iron oxyhydroxide from water is difficult to realize. The superconducting magnet can generate magnetic field intensity higher than 5T, and provides possibility for practical engineering application of weak magnetic functional materials. Meanwhile, the superconducting magnet has zero resistance and can provide an effective separation area of several cubic meters, and the operation cost of the superconducting magnetic separation process is far lower than that of a conventional magnetic separation system.
Compared with the prior art, the invention provides a high-efficiency water treatment and product recovery system. The method has the advantages of convenient cleaning, high processing speed and the like, has the functions of recovering separated substances and adsorbents, can independently select precision and cycle times, and achieves ideal effects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stable separation recovery system washs unchangeable, washs and need to break off, can not circulate and continue the separation to superconductive magnetic adsorption separation dephosphorization field prior art problem, and the low scheduling problem of precision makes the improvement.
The embodiment of the utility model is realized like this: a superconducting magnetic separation water treatment system comprises a pre-filtering system, a magnetic adding system, a magnetic separation power system, a superconducting magnet system, a material cleaning system and a desorption recovery system, wherein the superconducting magnet system comprises a superconducting magnet, a separation cavity and a dispersion and movement device, the dispersion and movement device can disperse water and parallelly penetrate through a superconducting magnetic field along the axis direction of the superconducting magnet, the separation cavity is arranged between the superconducting magnets, the pre-filtering system comprises a water inlet pipeline and a coarse filter, at least one single-pole magnetic filter is arranged in the separation cavity, the single-pole magnetic filter comprises magnetic filaments and/or steel wool, the magnetic separation power system comprises a water inlet pump and a rotor flowmeter, and the desorption recovery system comprises a material desorption separation device and a material recovery device.
Treat the separation water and pass through prefiltration system gets into and adds the magnetic system, forms magnetic substance with the adsorbent complex, then treat the separation water and pass through it evenly gets into to scatter and move the device select separately the chamber, the water process select separately the chamber, magnetic substance attach to select separately the chamber adsorbs the saturation back, attach to magnetic substance select separately the chamber shifts out the magnetic field through mechanical control, washs through port department material cleaning system, handles to accomplish the water and discharges at the delivery port, magnetic substance passes through desorption separator carries out the desorption, and adsorbent after the desorption can be added and add used repeatedly in the magnetic system, and the last separator of desorption passes through recovery unit retrieves.
In this embodiment, the superconducting magnet is provided with a magnetic isolation device outside, so that the magnetic field can be rapidly attenuated and isolated, and the magnetic filter is fixed at the center of the magnetic field generated by the superconducting electromagnet during the operation of the superconducting magnet, so that the magnetic filter is difficult to take out of the cavity of the magnet during the operation of the superconducting magnet, and therefore, the superconducting magnet must be stopped for a period of time to remove and clean. The arrangement of the magnetic isolation device can solve the technical problem.
In this embodiment, the separated water treatment system may be repeatedly operated for a plurality of times, that is, the water may be repeatedly introduced into the magnetism adding system after the water separation is completed, and then the superconducting magnetic separation step is repeated.
In this embodiment, the coarse filter can be adjusted according to the size attribute of the separated material to be recovered.
In this embodiment, the adsorbent in the magnetizing system is a magnetic adsorbent, and magnetic seeding may be performed on the adsorbent in advance by one or more of a colloid magnetic seeding method, a mechanochemical magnetic seeding method, and an electrochemical magnetic seeding method, and then magnetic force may be applied to the substance to be separated by the attraction between the magnetic seed and the adsorbent, and the adsorbent may include magnetite, a ceramic porous substance, a zeolite porous substance, activated carbon, a plastic carrier, and the like.
In this embodiment, the magnetic species is iron oxyhydroxide, and the iron oxyhydroxide belongs to weakly magnetic minerals, and under a strong background magnetic field, theoretically, the iron oxyhydroxide can be directly separated from water through magnetic separation, so that a complex process flow for preparing a ferromagnetic adsorbent is avoided, and the preparation cost of the adsorbing material is greatly reduced.
In this embodiment, the material cleaning system may optionally be one or more of a suction cleaning method, a spray cleaning method, an ultrasonic cleaning method, and a foam cleaning method.
In this embodiment, the desorption separation device adopts one or more combination of centrifugation, filter pressing, ultrasonic separation and superconducting magnetic separation, in this embodiment, NaOH is used for mixed desorption, and then CaCl2 is used for centrifugally recovering phosphorus to be separated.
In another embodiment, the sorting chamber is provided as a removable multi-stage magnetic filter consisting of a plurality of single pole magnetic filters. In the superconducting magnetic separation system of the previous embodiment, in order to remove the substance to be separated adsorbed in the magnet, the operating superconducting magnet must be stopped for a period of time to remove the substance and then reactivated, which has the disadvantage of being extremely inefficient. In addition, a mobile cleaning device used with the mobile multiunit magnetic filter can be arranged in the superconducting magnet system.
In this embodiment, the length of the movable multiunit magnetic filter is greater than or equal to that of the superconducting magnet, so that the single-unit magnetic filters are cleaned one by one for replacement.
Through the technical content, the utility model discloses have following beneficial effect at least:
(1) treating phosphorus-containing wastewater by using iron oxyhydroxide; greatly reduces the preparation cost of the adsorbing material.
(2) The solid-liquid separation of the adsorbent and water is realized by utilizing a superconducting magnetic separation technology; and (4) recycling the adsorbent.
(3) Repeated continuous filtering improves filter fineness and filtration efficiency.
(4) The superconducting magnet is cleaned without stopping running, and the superconducting magnet can run continuously.
Drawings
Embodiments of the invention are explained in more detail below with the aid of the figures. In the drawings:
FIG. 1 shows an embodiment of the present invention of a superconducting magnetic separation water treatment system
FIG. 2 illustrates another embodiment of the present invention for facilitating cleaning of a superconducting magnetic separation water treatment system
List of reference numerals:
the system comprises a pre-filtering system 1, a water inlet pipeline 11, a coarse filter 12, a magnetic adding system 2, a magnetic separation power system 3, a water inlet pump 31, a rotor flow meter 32, a superconducting magnet system 4, a superconducting magnet 41, a separation cavity 42, a bulk moving device 43, a movable multistage magnetic filter 44, a material cleaning system 5, a desorption recovery system 6, a material recovery device 61 and a material desorption separation device 62.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Conventional separation equipment such as adsorption equipment is limited by the solid-liquid separation method. Although this can be solved by granulation, it tends to cause an increase in the cost of the treatment and an increase in the complexity of the operation. The magnetic separation technology is simple to operate, and can realize high-efficiency solid-liquid separation, so that the problems can be well solved. However, the traditional magnetic separation technology is only suitable for separating the strong magnetic adsorbent and has certain limitation. The superconducting magnetic separation equipment provided by the invention can realize high-efficiency separation of weak magnetic small particles and water, and the selectivity of an adsorbent is larger. The embodiment provides a superconducting magnetic separation water treatment system to eliminate the defects of complex operation, low efficiency, high cost and the like of the existing superconducting magnetic separation technology.
The superconducting magnetic separation water treatment system of the embodiment comprises a pre-filtering system 1, a magnetism adding system 2, a magnetic separation power system 3, a superconducting magnet system 4, a material cleaning system 5 and a desorption recovery system 6, wherein the superconducting magnet system 4 comprises a superconducting magnet 41, a separation cavity 42 and a dispersion and movement device 43, the separation cavity 42 is arranged between the superconducting magnets 41, the pre-filtering system 1 comprises a water inlet pipeline 11 and a coarse filter 12, the separation cavity 42 comprises at least one unipolar magnetic filter, the magnetic separation power system 3 comprises a water inlet pump 31 and a rotor flowmeter 32, and the desorption recovery system 6 comprises a material desorption and separation device 62 and a material recovery device 61.
During operation, the water to be separated enters the magnetizing system 2 through the pre-filtering system 1 and is compounded with the adsorbent to form a magnetic substance, then the water to be separated uniformly enters the separation cavity 42 through the dispersion and movement device 43, the water passes through the separation cavity 42, the magnetic substance is attached to the separation cavity 42, after the separation cavity 42 is adsorbed and saturated, the separation cavity 42 attached with the magnetic substance moves out of a magnetic field through mechanical control, the material cleaning system 5 at the port is cleaned, the water is discharged at the water outlet after treatment, the magnetic substance is desorbed through the desorption and separation device 62, the desorbed adsorbent can be added into the magnetizing system for reuse, and the separated substance after desorption is recovered through the recovery device 61.
In order to realize the rapid attenuation and magnetic isolation of the magnetic field, the superconducting magnet 41 of this embodiment may be externally provided with a magnetic isolation device.
For improving super magnetic separation water treatment system work efficiency and precision, the separation water treatment system of this embodiment can multiple repetition operation, can repeatedly get into after the water separation is accomplished promptly and add the magnetism system, and then repeated superconductive magnetism separation step, and this sets up and effectively improves work efficiency, if cooperate continuation formula operating condition efficiency to promote by a wide margin.
The coarse filter 12 of the present embodiment can be adjusted according to the size attribute of the separated material to be recovered, and can be adjusted and disposed in a targeted manner according to the attribute of the material to be separated.
The adsorbent in the magnetizing system of this embodiment is a magnetic adsorbent, and magnetic inoculation can be performed on the adsorbent in advance by one or a combination of a colloid magnetic inoculation method, a mechanochemical magnetic inoculation method, and an electrochemical magnetic inoculation method, and then magnetism is applied to the substance to be separated by the attraction between the magnetic species and the adsorbent, and the adsorbent can include magnetite, ceramic porous substances, zeolite porous substances, activated carbon, plastic carriers, and the like. The magnetic seeds of the embodiment are iron oxyhydroxide, the iron oxyhydroxide belongs to weakly magnetic minerals, and under a strong background magnetic field, theoretically, the iron oxyhydroxide can be directly separated from water through magnetic separation, so that a complex process flow for preparing a strong magnetic adsorbent is avoided, and the preparation cost of the adsorbing material is greatly reduced.
According to the utility model provides a surpass washing method of magnetic separation water treatment facilities, can adopt the washing technique among the prior art or preferred combination, so the optional suction formula of material cleaning system 5 of this embodiment washs, sprays formula cleaning method, ultrasonic cleaning method, foam cleaning method in one or more combination. In the present embodiment, the desorption separation device 62 employs one or more combinations of centrifugation, filter pressing, ultrasonic separation, and superconducting magnetic separation. The technology of desorption separation equipment is relatively mature and is not described in detail here.
The utility model discloses a solve among the prior art, the defect that can not continuous operation among the superconductive magnetic separation technique provides another embodiment, and sustainable operation does not stop, the abluent superconductive magnetic separation water processing system of portable: the separation chamber 42 of the present embodiment is provided with a movable multiunit magnetic filter 44, the multiunit magnetic filter is composed of a plurality of single-pole magnetic filters, and the length of the movable multiunit magnetic filter 44 is greater than or equal to that of the superconducting magnet. This structure has an advantage that it is easy to continuously add the single-unit magnetic filters from the upstream side by sequentially cleaning the single-unit magnetic filters from the downstream side, which are sequentially cleaned backward, even in a magnetic field in a superconducting magnet activated state. The principle of operation is as described above. This allows the rinsing process of the single-unit magnetic filter to be carried out continuously without interrupting the magnetic separation operation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (7)
1. The utility model provides a superconductive magnetic separation water processing system comprises prefiltration system (1), add magnetic system (2), magnetic separation driving system (3), superconductive magnet system (4), material cleaning system (5) and desorption recovery system (6), its characterized in that: the superconducting magnet system (4) comprises superconducting magnets (41), a sorting cavity (42) and a dispersion and movement device (43), the sorting cavity (42) is arranged between the superconducting magnets (41), the pre-filtering system (1) is composed of a water inlet pipeline (11) and a coarse filter (12), at least one single-pole magnetic filter is contained in the sorting cavity (42), the magnetic separation power system (3) comprises a water inlet pump (31) and a rotor flow meter (32), the desorption and recovery system (6) comprises a material desorption and separation device (62) and a material recovery device (61), the pre-filtering system (1) is positioned at the foremost end of the whole water treatment system and is composed of the water inlet pipeline (11) connected with the coarse filter (12), the coarse filter (12) is connected with the magnetizing system (2) through a pipeline, and a pipeline behind the magnetizing system is connected with the water inlet pump (31), the water inlet pump (31) is connected with the scattered moving device (43) through a pipeline, a rotor flow meter (32) is arranged on the pipeline between the water inlet pump (31) and the scattered moving device (43), the scattered moving device (43) is connected with a sorting cavity (42), the superconducting magnet (41) is located on two sides of the sorting cavity (42), the sorting cavity (42) is arranged in the superconducting magnet system (4) in a mechanical movable mode, a rear port of the sorting cavity (42) is connected with the material cleaning system (5), the material cleaning system (5) is connected with the desorption separation device (62), the other end of the desorption separation device (62) is connected with the magnetized system (2) through a pipeline, and the desorption separation device (62) is further connected with the material recovery device (61).
2. A superconducting magnetic separation water treatment system according to claim 1, wherein the sorting chamber (42) is provided as a removable multi-stage magnetic filter (44) consisting of a plurality of single pole magnetic filters.
3. The superconducting magnetic separation water treatment system according to claim 2, wherein the length of the movable multistage magnetic filter (44) is equal to or greater than that of the superconducting magnet.
4. A superconducting magnetic separation water treatment system according to claim 1, wherein a magnetic shielding device is provided outside the superconducting magnet (41).
5. A superconducting magnetic separation water treatment system according to claim 4, wherein the coarse filter (12) is adjustable according to the size properties of the separated material to be recovered.
6. The superconducting magnetic separation water treatment system according to claim 1, wherein the material cleaning system (5) is optionally one or more of suction cleaning, spray cleaning, ultrasonic cleaning, and foam cleaning.
7. The superconducting magnetic separation water treatment system according to claim 1, wherein the desorption separation device (62) is one or more of centrifugal separation, filter pressing, ultrasonic separation and superconducting magnetic separation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118125573A (en) * | 2024-04-30 | 2024-06-04 | 西安聚能超导磁体科技有限公司 | Mobile sewage superconducting magnetic separation system and separation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118125573A (en) * | 2024-04-30 | 2024-06-04 | 西安聚能超导磁体科技有限公司 | Mobile sewage superconducting magnetic separation system and separation method |
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