CN112246394A

CN112246394A - Environment-friendly tailing processing system

Info

Publication number: CN112246394A
Application number: CN202011016500.6A
Authority: CN
Inventors: 纪铭
Original assignee: Hunan Chengzhi Environmental Protection Technology Co ltd
Current assignee: Hunan Chengzhi Environmental Protection Technology Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-01-22

Abstract

The invention discloses an environment-friendly tailing treatment system, which comprises a working chamber, wherein the working chamber is internally provided with the following components in sequence from top to bottom: coarse grinding device: suitable for grinding the tailings; a deferrization device: the method is suitable for removing ferromagnetic substances in tailings; and (3) a fine grinding device: the method is suitable for further grinding the tailings after iron removal; a screening device; the method is suitable for screening and filtering the powder tailings; the rough grinding device comprises a first round grinding head and a second round grinding head which are rotatably arranged in a working chamber, a driving motor is arranged at the top end of the working chamber, and a rotating shaft of the driving motor is fixedly connected with the axis of the first round grinding head. This scheme is through the corase grind device, the deironing device, the correct grinding device and the screening plant that from top to bottom set gradually, can be with the magnetic metal suction in the tailing, simultaneously, equals grit separation with dust, earth in the tailing, subsequent processing and reprocessing of being convenient for reduce the influence of metal material in the tailing to the environment, suitable using widely.

Description

Environment-friendly tailing processing system

Technical Field

The invention relates to the technical field of tailing treatment, and particularly belongs to an environment-friendly tailing treatment system.

Background

Tailings are temporarily unusable fertilizers discharged after mining or sorting of the ore, including mine tailings and mill tailings. The mineral tailings comprise mined associated rocks and low-grade ores rejected in the middle, and the tailings of the concentrating mill comprise mineral waste materials discharged after the ores are mechanically washed and selected by adopting a certain process. Typically a tailings pond is stored. Tailings such as waste ore of raw bauxite ore, waste slag and waste mud of aluminum oxide and the like are usually dehydrated and dried and then stacked in a tailing pond for a long time, but the stacking of the dried tailings is easy to cause dust flying, seriously pollutes the environment and harms the health of people. In addition, the long-term stacking of the tailings occupies a large amount of agricultural or forest land, and waste of land resources is caused.

In the prior art, the tailings are treated by directly crushing the tailings and then are applied to production of building materials, metal elements in the tailings are not removed, so that the construction environment is polluted and the tailings are inconvenient to use.

Disclosure of Invention

The invention aims to: provides an environment-friendly tailing processing system which can separate ferromagnetic metal in the tailing.

The technical scheme adopted by the invention is as follows:

the utility model provides an environment-friendly tailing processing system, includes the studio, studio top intercommunication is provided with the feed space, the feed space bottom is provided with the unloading switch, from top to bottom has set gradually in the studio: coarse grinding device: suitable for grinding the tailings; a deferrization device: the method is suitable for removing ferromagnetic substances in tailings; and (3) a fine grinding device: the method is suitable for further grinding the tailings after iron removal; a screening device; the method is suitable for screening and filtering the powder tailings; the rough grinding device comprises a first round grinding head and a second round grinding head which are rotatably arranged in the working chamber, a driving motor is arranged at the top end of the working chamber, a rotating shaft of the driving motor is fixedly connected with the axis of the first round grinding head, and the first round grinding head is in transmission connection with the second round grinding head; and a material guiding plate is further arranged in the working chamber and is suitable for guiding the feeding of the feeding chamber to the middle position of the first round grinding head and the second round grinding head. The setting of corase grind device in the studio, thereby it can get rid of the ferromagnetic substance in the tailing (the tiny particle tailing is convenient for separate) to guarantee the deironing device with the tailing grinding, the setting of correct grinding device, then be used for carrying out the secondary grinding to the tailing behind the deironing, through screening plant screening after fully smashing grit and mud etc. in the tailing, with this, the grit of screening then can be used for producing building material after processing is accomplished, ferromagnetic metal then can be collected alone, subsequent processing and recovery of being convenient for, the pollution that causes the building environment has been reduced, the utilization ratio of tailing has been improved, and the suitable popularization and use.

Preferably, be provided with first ring gear on the first round bistrique, be provided with the second ring gear on the second round bistrique, rotate on the studio be provided with respectively with first ring gear with first gear and second gear of second ring gear meshing, first gear with the pivot of second gear is passed through belt drive and is connected, still be provided with the striker plate on the studio, the striker plate be applicable to with first round bistrique with the bottom and the transmission part of second round bistrique separate. First, the setting of second ring gear and first second gear for be connected first round bistrique and second round bistrique transmission, the simultaneous movement of two bistriques of being convenient for, during the in-service use, through first, the position of second gear, adjustable first round bistrique and second round bistrique antiport, improve the efficiency of making with this, the setting of striker plate, then can prevent to make the rubble of in-process splash to transmission department, cause the influence to transmission structure's stability, the use effect is improved.

Preferably, the deferrization device include the level set up first slide cartridge and with the second slide cartridge that first slide cartridge symmetry set up, first slide cartridge and second slide cartridge endotheca are equipped with the magnetism slide bar, be provided with power structure on the lateral wall of studio, power structure is applicable to control the magnetism slide bar is followed first slide cartridge with the skew takes place for the second slide cartridge. The setting of magnetism slide bar for adsorb ferromagnetic metal, the orbit of magnetism slide bar then is used for injecing in the setting of first, the smooth section of thick bamboo of second, and the horizontal skew of magnetism slide bar then can be adjusted in the setting of power structure, and the magnetism slide bar top layer of avoiding fixed setting adsorbs the metal too much, causes the condition that the adsorption effect reduces, improves the separation effect to ferromagnetic metal.

Preferably, the first sliding barrel and the second sliding barrel are close to one end of the middle position of the working chamber is provided with a lower iron head, one end of the lower iron head is hinged to the first sliding barrel and the second sliding barrel, the other end of the lower iron head is matched with the magnetic sliding rod, at least two lower iron heads are arranged on the first sliding barrel, an iron taking drawer is further arranged below the lower iron heads, and the iron taking drawer is connected with the working chamber in a sliding mode. Articulated lower iron head that sets up, then can be in the gliding while of magnetism slide bar, scrape the ferromagnetic metal of magnetism slide bar top layer adhesion to getting the iron steamer tray and collect, thereby can in time clear up in the use, guarantee the adsorption effect to ferromagnetic metal, the articulated department of iron head can set up compressing spring down during in-service use, make down the iron head sticiss all the time and guarantee to pushing down of metal on the magnetism slide bar, the setting of iron head under two at least, can be provided with the cooperation groove of semicircle type on the iron head down, with guaranteeing to wrap up the whole parcel of magnetism slide bar, improve down iron effect, the iron steamer tray of getting of slip setting, then be used for collecting ferromagnetic metal, be convenient for simultaneously follow-up handle and use it, and convenient for operation.

Preferably, the power structure includes that two magnetism that the symmetry set up attract the room, the room setting is inhaled to the magnetism is in on the lateral wall of studio, inhale the indoor be provided with first slide cartridge or the cooperation groove that the second slide cartridge intercommunication set up of magnetism, the cooperation groove is kept away from the one end of studio is provided with the electro-magnet, inhale the indoor still be provided with power module that the electro-magnet electricity is connected with be used for control power module's controller, the both ends of magnetism slide bar be provided with electro-magnet complex magnetism piece, the intermediate position of magnetism slide bar still is provided with first permanent magnetism section and second permanent magnetism section, be provided with no magnetism district between first permanent magnetism section and the second permanent magnetism section. The setting of magnetism suction chamber, can control the skew about the magnetism slide bar through the electro-magnet of magnetism suction chamber bottom and the magnetism piece at magnetism slide bar both ends, it is first, the setting of second permanent magnetism section, then when the magnetism slide bar is in left extreme condition and right extreme condition respectively, be in the intermediate position of two circle bistriques exactly, guarantee to grind the metal in the back piece and adsorbed completely, realize the purpose of clearing up the metal piece under the operating condition with this, the setting in no magnetic field between two permanent magnetism sections, then be convenient for the unloading (when extreme position, the unloading head can push away the iron fillings on a permanent magnetism section completely to no magnetic field, make it fall to getting in the iron steamer tray under the action of gravity and collect), avoid the metal skew about going on between two permanent magnetism sections, guarantee the unloading effect.

Preferably, the fine grinding device comprises two material guide blocks which are symmetrically arranged, the two material guide blocks are enclosed to form a material passing cavity, a material guiding inclined plane is arranged at the top end of each material guide block, the lower horizontal end of the material guiding inclined plane is close to the middle of the working chamber, a fine grinding wheel is arranged on one material guide block, a grinding groove matched with the fine grinding wheel is formed in the other material guide block, and the fine grinding device further comprises a fine grinding motor used for driving the fine grinding wheel. The guide block and the guide material inclined plane are used for guiding materials to the material passing cavity, and the fine grinding motor, the fine grinding wheel and the grinding groove are used for further grinding the tailing sand so as to facilitate subsequent use.

Preferably, screening plant includes the sieve filter screen, the sieve filter screen sets up the below in material chamber is crossed, the sieve filter screen is the arc setting of upwards uplifting. The setting of sieve filter screen can filter the tailings after the correct grinding, and the sieve filter screen that the arc set up can separate tiny particle material and grit, and earth, dust etc. can be directly by the sieve mesh whereabouts, and the grit then drops along sieve filter screen both ends, and the separation of being convenient for is collected.

Preferably, a dust collecting chamber is arranged below the high-level end of the screen, a sand collecting chamber is arranged below the low-level end of the screen, and a sand collecting drawer is arranged in the sand collecting chamber in a sliding manner. The setting of room is collected with the sand material to integrated room, then is used for respectively collecting dust and sand stone, is convenient for clear up and takes.

Preferably, a plurality of water spraying heads are arranged on the inner wall of the working chamber, the water spraying heads face the material guiding inclined plane, a cleaning water pump is further arranged on the outer side of the working chamber, and the outlet end of the cleaning water pump is communicated with the water spraying heads. The setting of sprinkler bead and clean water pump then is used for strikeing the tailings granule behind the deferrization to the finish grinding wheel on, avoids the tailings granule adhesion on drawing the material inclined plane, simultaneously, reduces the condition that the powder that vertical direction fall caused drifts away, and in addition, rivers can also improve the finish grinding effect, avoids the material to pile up, and the practicality is strong.

Preferably, the inlet end of the cleaning water pump is communicated with the dust collecting chamber, and a filter is further arranged between the dust collecting chamber and the cleaning water pump. The clean water pump communicated with the dust collecting chamber can suck water to the spray head again to be sprayed out when the water outlet of the spray head enters the dust collecting chamber after being filtered by the screen and can be recycled, and the filter is used for filtering dust left in the dust collecting chamber along with water flow, so that the use effect is prevented from being influenced.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the coarse grinding device, the iron removing device, the fine grinding device and the screening device are sequentially arranged from top to bottom, so that magnetic metal in tailings can be sucked out, meanwhile, dust and soil in the tailings are separated from sand and stone, the subsequent treatment and reprocessing are facilitated, the influence of metal substances in the tailings on the environment is reduced, and the method is suitable for popularization and application.

2. According to the invention, through the arrangement of the first sliding cylinder, the second sliding cylinder, the magnetic sliding rod arranged in the sliding cylinders in a sliding manner and the lower iron head, when too much magnetic metal is adhered to the magnetic sliding rod, the magnetic sliding rod slides and the lower iron head is matched to unload materials on the rod, so that the subsequent use is facilitated.

3. In the invention, the first permanent magnet section, the second permanent magnet section and the middle non-magnetic area are arranged, so that the blanking effect on magnetic metal can be ensured, and in addition, the two permanent magnet sections are sequentially used, so that blanking can be carried out while processing (when the first permanent magnet section is blanked, the second permanent magnet section is just positioned below the coarse grinding device, and vice versa), and the using effect is further improved.

4. According to the invention, through the arrangement of the cleaning water pump and the water spraying head, the tailings after iron removal can be impacted on the fine grinding wheel, the tailings are prevented from being adhered to the guide material inclined plane, meanwhile, the powder drifting condition caused by the fall in the vertical direction is reduced, in addition, the water flow can also improve the fine grinding effect, the material accumulation is avoided, and the practicability is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is an enlarged schematic view of region a in fig. 1.

The labels in the figure are: 1-a working chamber, 2-a feeding chamber, 3-a blanking switch, 4-a first round grinding head, 5-a second round grinding head, 6-a driving motor, 7-a material guiding plate, 8-a first gear ring, 9-a second gear ring, 10-a first gear, 11-a second gear, 12-a material blocking plate, 13-a first sliding barrel, 14-a second sliding barrel, 15-a magnetic sliding rod, 16-a lower iron head, 17-an iron taking drawer, 18-a magnetic suction chamber, 19-a matching groove, 20-an electromagnet, 21-a power supply module, 22-a controller, 23-a magnetic block, 24-a first permanent magnetic section, 25-a second permanent magnetic section, 26-a non-magnetic area, 27-a material guiding block, 28-a material passing cavity, 29-a material guiding inclined plane and 30-a fine grinding wheel, 31-grinding groove, 32-screen mesh, 33-dust collecting chamber, 34-sand collecting drawer, 35-water spray head, 36-cleaning water pump and 37-filter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention 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 figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

As shown in fig. 1, 2, an environment-friendly tailing processing system, includes studio 1, the intercommunication of 1 top of studio is provided with feed space 2, 2 bottoms of feed space are provided with unloading switch 3, from top to bottom have set gradually in the studio 1: coarse grinding device: suitable for grinding the tailings; a deferrization device: the method is suitable for removing ferromagnetic substances in tailings; and (3) a fine grinding device: the method is suitable for further grinding the tailings after iron removal; a screening device; the method is suitable for screening and filtering the powder tailings; the rough grinding device comprises a first round grinding head 4 and a second round grinding head 5 which are rotatably arranged in the working chamber 1, a driving motor 6 is arranged at the top end of the working chamber 1, a rotating shaft of the driving motor 6 is fixedly connected with the axis of the first round grinding head 4, and the first round grinding head 4 is in transmission connection with the second round grinding head 5; a material guiding plate 7 is further arranged in the working chamber 1, and the material guiding plate 7 is suitable for guiding the feeding material of the feeding chamber 2 to the middle position of the first round grinding head 4 and the second round grinding head 5; the first circular grinding head 4 is provided with a first gear ring 8, the second circular grinding head 5 is provided with a second gear ring 9, the working chamber 1 is rotatably provided with a first gear 10 and a second gear 11 which are respectively meshed with the first gear ring 8 and the second gear ring 9, a rotating shaft of the first gear 10 is in transmission connection with a rotating shaft of the second gear 11 through a belt, the working chamber 1 is further provided with a material baffle plate 12, and the material baffle plate 12 is suitable for separating the bottom ends of the first circular grinding head 4 and the second circular grinding head 5 from a transmission part; the iron removing device comprises a first sliding barrel 13 arranged horizontally and a second sliding barrel 14 arranged symmetrically to the first sliding barrel 13, and magnetic sliding rods 15 are sleeved in the first sliding barrel 13 and the second sliding barrel 14; one ends of the first sliding barrel 13 and the second sliding barrel 14, which are close to the middle position of the working chamber 1, are provided with lower iron heads 16, one ends of the lower iron heads 16 are hinged with the first sliding barrel 13 and the second sliding barrel 14, the other ends of the lower iron heads 16 are matched with the magnetic sliding rods 15, the first sliding barrel 13 is provided with at least two lower iron heads 16, an iron taking drawer 17 is further arranged below the lower iron heads 16, and the iron taking drawer 17 is in sliding connection with the working chamber 1; the magnetic slide bar is characterized in that two magnetic suction chambers 18 are symmetrically arranged on the side wall of the working chamber 1, the magnetic suction chambers 18 are arranged on the side wall of the working chamber 1, a matching groove 19 communicated with the first sliding barrel 13 or the second sliding barrel 14 is arranged in each magnetic suction chamber 18, an electromagnet 20 is arranged at one end, away from the working chamber 1, of each matching groove 19, a power module 21 electrically connected with the electromagnet 20 and a controller 22 used for controlling the power module 21 are further arranged in each magnetic suction chamber 18, magnetic blocks 23 matched with the electromagnet 20 are arranged at two ends of each magnetic slide bar 15, a first permanent magnetic section 24 and a second permanent magnetic section 25 are further arranged in the middle of each magnetic slide bar 15, and a non-magnetic area 26 is arranged between each first permanent magnetic section 24 and each second permanent magnetic section 25; the fine grinding device comprises two guide blocks 27 which are symmetrically arranged, the two guide blocks 27 are enclosed to form a material passing cavity 28, the top end of each guide block 27 is provided with a material guiding inclined plane 29, the lower horizontal end of each material guiding inclined plane 29 is arranged close to the middle of the working chamber 1, one guide block 27 is provided with a fine grinding wheel 30, the other guide block 27 is provided with a grinding groove 31 matched with the fine grinding wheel 30, and the fine grinding device further comprises a fine grinding motor used for driving the fine grinding wheel 30; the screening device comprises a screen 32, the screen 32 is arranged below the material passing cavity 28, and the screen 32 is arranged in an upward-raised arc shape; a dust collection chamber 33 is arranged below the high-level end of the screen 32, a sand collection chamber is arranged below the low-level end of the screen 32, and a sand collection drawer 34 is arranged in the sand collection chamber in a sliding manner; a plurality of water spray heads 35 are arranged on the inner wall of the working chamber 1, the water spray heads 35 are arranged towards the material guiding inclined plane 29, a cleaning water pump 36 is further arranged outside the working chamber 1, and the outlet end of the cleaning water pump 36 is communicated with the water spray heads 35; the inlet end of the cleaning water pump 36 is communicated with the dust collecting chamber 33, and a filter 37 is arranged between the dust collecting chamber 33 and the cleaning water pump 36.

In the using process, only tailings are placed in the feeding chamber 2, power elements (a driving motor 6, a fine grinding motor and a cleaning water pump 36) are started, then the blanking switch 3 is started, the driving motor 6 can drive the first round grinding head 4 and the second round grinding head 5 to rotate, the tailings are concentrated at the middle position of the first round grinding head 4 and the second round magic head under the action of the material guiding plate 7, the tailings fall after being ground by the grinding heads, when the tailings pass through the magnetic slide rod 15, magnetic metal in the tailings can be adsorbed on the first permanent magnetic section 24/the second permanent magnetic section 25 of the magnetic slide rod 15, in the process, when the magnetic metal on the first permanent magnetic section 24 is excessive, the controller 22 can control the left electromagnet 20 to be electrified, the magnetic slide rod 15 is controlled to move left by opening the magnetic block 23 on the left side of the magnetic slide rod 15, the blanking head can be tightly pressed on the magnetic slide rod 15 while moving left, the magnetic metal on the first permanent magnetic section 24 is scraped along the magnetic slide rod 15, until the magnetic material is scraped to the non-magnetic area 26, the magnetic metal falls into the iron drawer 17 under the action of gravity, when the electromagnet 20 and the left magnetic block 23 are adsorbed, the second permanent magnetic section 25 is just positioned under the rough grinding area, so that the cleaning of the magnetic metal on the first permanent magnetic section 24 is completed, meanwhile, the unused second permanent magnetic section 25 is placed at the adsorption position for continuous use to ensure the adsorption effect on the magnetic metal, in the embodiment, two magnetic slide bars 15 are arranged, mineral materials are continuously fallen after being adsorbed by the magnetic slide bars 15 in tailings, enter the material passing cavity 28 under the guiding action of the material guiding inclined plane 29 and are finely ground by the fine grinding wheel 30, in the process, the cleaning water pump 36 pumps water in the dust collection chamber 33 (a part of water sources is placed in advance) to the fine grinding water spray head 35 to the material guiding inclined plane 29 to ensure that the mineral materials enter the material passing cavity 28, and simultaneously, the material passing cavity is washed to avoid the accumulation of the materials, water flow is carried by the tailings after fine grinding and is screened by the screen 32, gravels fall into the sand collection drawer 34 from two ends of the screen 32, dust, soil and the like together pass through the screen 32 together with the water flow and fall into the dust collection chamber 33, then the dust and the soil are pumped out again under the action of the cleaning water pump 36 for recycling, and the dust and the soil can be filtered by the filter 37, so that the purity of the water flow is ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an environment-friendly tailing processing system, includes studio (1), its characterized in that, studio (1) top intercommunication is provided with feed space (2), feed space (2) bottom is provided with unloading switch (3), wherein:

the working chamber (1) is internally provided with the following components in sequence from top to bottom:

coarse grinding device: suitable for grinding the tailings;

a deferrization device: the method is suitable for removing ferromagnetic substances in tailings;

and (3) a fine grinding device: the method is suitable for further grinding the tailings after iron removal;

a screening device; the method is suitable for screening and filtering the powder tailings;

the rough grinding device comprises a first round grinding head (4) and a second round grinding head (5) which are rotatably arranged in the working chamber (1), a driving motor (6) is arranged at the top end of the working chamber (1), a rotating shaft of the driving motor (6) is fixedly connected with the axis of the first round grinding head (4), and the first round grinding head (4) is in transmission connection with the second round grinding head (5);

the working chamber (1) is also internally provided with a material guiding plate (7), and the material guiding plate (7) is suitable for guiding the feeding of the feeding chamber (2) to the middle positions of the first round grinding head (4) and the second round grinding head (5).

2. The environment-friendly tailing processing system of claim 1, characterized in that a first gear ring (8) is arranged on the first round grinding head (4), a second gear ring (9) is arranged on the second round grinding head (5), a first gear (10) and a second gear (11) which are respectively engaged with the first gear ring (8) and the second gear ring (9) are rotatably arranged on the working chamber (1), the rotating shaft of the first gear (10) and the rotating shaft of the second gear (11) are connected through belt transmission, a baffle plate (12) is further arranged on the working chamber (1), and the baffle plate (12) is suitable for separating the bottom ends of the first round grinding head (4) and the second round grinding head (5) from a transmission part.

3. The environment-friendly tailing treatment system according to claim 1 or 2, wherein the iron removing device comprises a first sliding barrel (13) and a second sliding barrel (14), the first sliding barrel (13) and the second sliding barrel (14) are horizontally arranged, the second sliding barrel (14) is symmetrically arranged with the first sliding barrel (13), a magnetic sliding rod (15) is sleeved in the first sliding barrel (13) and the second sliding barrel (14), a power structure is arranged on the side wall of the working chamber (1), and the power structure is suitable for controlling the magnetic sliding rod (15) to shift along the first sliding barrel (13) and the second sliding barrel (14).

4. The environment-friendly tailing treatment system according to claim 3, wherein one end of the first sliding barrel (13) and the second sliding barrel (14) close to the middle position of the working chamber (1) is provided with a lower iron head (16), one end of the lower iron head (16) is hinged to the first sliding barrel (13) and the second sliding barrel (14), the other end of the lower iron head (16) is matched with the magnetic sliding rod (15), at least two lower iron heads (16) are arranged on the first sliding barrel (13), an iron taking drawer (17) is further arranged below the lower iron heads (16), and the iron taking drawer (17) is connected with the working chamber (1) in a sliding mode.

5. The environment-friendly tailing treatment system according to claim 3, wherein the power structure comprises two magnetic suction chambers (18) which are symmetrically arranged, the magnetic suction chambers (18) are arranged on the side wall of the working chamber (1), a matching groove (19) communicated with the first sliding barrel (13) or the second sliding barrel (14) is arranged in each magnetic suction chamber (18), an electromagnet (20) is arranged at one end, far away from the working chamber (1), of each matching groove (19), a power module (21) electrically connected with the electromagnet (20) and a controller (22) used for controlling the power module (21) are further arranged in each magnetic suction chamber (18), magnetic blocks (23) matched with the electromagnet (20) are arranged at two ends of each magnetic sliding rod (15), a first permanent magnetic section (24) and a second permanent magnetic section (25) are further arranged at the middle position of each magnetic sliding rod (15), a non-magnetic area (26) is arranged between the first permanent magnetic section (24) and the second permanent magnetic section (25).

6. The environment-friendly tailing processing system of claim 1, characterized in that the refining device comprises two guide blocks (27) which are symmetrically arranged, the two guide blocks (27) are enclosed to form a material passing cavity (28), a material guiding inclined plane (29) is arranged at the top end of each guide block (27), the lower horizontal end of the material guiding inclined plane (29) is close to the middle of the working chamber (1), one guide block (27) is provided with a refining wheel (30), the other guide block (27) is provided with a grinding groove (31) matched with the refining wheel (30), and the refining device further comprises a refining motor for driving the refining wheel (30).

7. An environment-friendly tailings treatment system according to claim 6, wherein the screening device comprises a screen mesh (32), the screen mesh (32) is arranged below the material passing chamber (28), and the screen mesh (32) is arranged in an upwardly-raised arc shape.

8. An environment-friendly tailing treatment system according to claim 7, characterized in that a dust collection chamber (33) is arranged below the high-level end of the screen (32), a sand collection chamber is arranged below the low-level end of the screen (32), and a sand collection drawer (34) is slidably arranged in the sand collection chamber.

9. The environment-friendly tailing treatment system according to claim 8, wherein a plurality of water spray heads (35) are arranged on the inner wall of the working chamber (1), the water spray heads (35) are arranged towards the material guiding inclined plane (29), a cleaning water pump (36) is further arranged outside the working chamber (1), and the outlet end of the cleaning water pump (36) is communicated with the water spray heads (35).

10. The environment-friendly tailing treatment system according to claim 9, wherein the inlet end of the clean water pump (36) is communicated with the dust collection chamber (33), and a filter (37) is arranged between the dust collection chamber (33) and the clean water pump (36).