Device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinder

Abstract

The utility model relates to the technical field of industrial grade ferrous sulfate extraction, in particular to a device for extracting industrial grade ferrous sulfate from pyrite acid-making cinder, which comprises a device main body and a sealing door, a feed port and a discharge port are respectively arranged at the upper top and the bottom of the device main body, and a stirring structure is arranged on the device main body. The stirring structure comprises a plurality of rotating shafts movably installed in the device body, a plurality of stirring rods are installed on the rotating shafts, belt wheels are fixedly installed at one ends of the rotating shafts, the multiple belt wheels are connected through a belt body, a rotating disc is fixedly installed at the top of one rotating shaft, and a filtering plate connected with the device body is movably installed at the bottom of the rotating shaft. Through the arrangement of the stirring structure, a mixed solution formed by mixing pyrite cinders and dilute sulphuric acid can be stirred, so that the pyrite cinders and the dilute sulphuric acid are mixed more uniformly, and the acid leaching effect is improved.

Description

Technical Field

[0001] The utility model relates to a device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders, belonging to the technical field of industrial-grade ferrous sulfate extraction. Background Art

[0002] Pyrite is the primary raw material for sulfuric acid production in my country. Currently, sulfuric acid produced from pyrite or sulfur-containing tailings accounts for over 80% of my country's total sulfuric acid production. Calcination of this slag produces a large amount of iron slag. Millions of tons of slag are discharged annually in my country. This slag is a valuable raw material for ironmaking and for the recovery of non-ferrous and precious metals. The extraction of industrial-grade ferrous sulfate typically involves first mixing pyrite slag with an appropriate amount of dilute sulfuric acid for acid leaching, followed by purification through filtration and crystallization.

[0003] The existing industrial-grade ferrous sulfate extraction device has a simple structure. When pyrite slag is mixed with an appropriate amount of dilute sulfuric acid, the two cannot be fully stirred, resulting in unsatisfactory acid leaching effect. The uneven mixing of the two will affect subsequent filtration, and the practicality is not high. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders, which can mix pyrite cinders with dilute sulfuric acid and then fully stir them, making the mixture of the two more uniform and improving the acid leaching effect.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders, comprising a device main body and a closed door, wherein the upper top and bottom of the device main body are respectively provided with a feed port and a discharge port, and the device main body is provided with a stirring structure, wherein the stirring structure comprises a plurality of rotating shafts movably mounted inside the device main body, a plurality of stirring rods are mounted on the rotating shaft, a pulley is fixedly mounted on one end of the rotating shaft, and the plurality of pulleys are connected via a belt main body, a turntable is fixedly mounted on the top of one of the rotating shafts, and a filter plate connected to the device main body is movably mounted on the bottom of the rotating shaft.

[0007] Furthermore, a through groove is provided on the filter plate, and a plug plate is slidably installed inside the through groove and penetrates to the outside of the closed door.

[0008] Furthermore, the rotating shaft is provided with a plurality of sockets, the interior of the sockets is provided with a plurality of mounting holes, a spring is fixedly installed inside the mounting hole, a clamping block is fixedly installed at one end of the spring, and the end of the stirring rod is provided with a plurality of clamping holes used in conjunction with the clamping block.

[0009] Furthermore, one end of the clamping block is configured to be arc-shaped.

[0010] Furthermore, an evaporation chamber is provided below the filter plate, and a plurality of heating structures are fixedly installed inside the evaporation chamber.

[0011] Furthermore, a collection box is provided below the discharge port, a plurality of chutes are provided on the device body, and a slider connected to the collection box is movably installed inside the chutes.

[0012] Furthermore, a scraper connected to the inserting plate is fixedly mounted on the closed door.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application adopts the setting of a stirring structure, which can mix the pyrite cinder and the dilute sulfuric acid and then stir them, so that the mixing of the two is more uniform, thereby improving the effect of the acid leaching. After the pyrite cinder and the dilute sulfuric acid are poured into the interior of the device body through the feed port, the turntable is rotated to drive the rotating shaft on the pulley to rotate, and the other rotating shaft is driven to rotate by the belt body. The multiple stirring rods on the rotating shaft stir the pyrite cinder and the dilute sulfuric acid inside the device body, thereby making the mixing of the two more sufficient. After the acid leaching is completed, the mixture is filtered through the filter plate. The setting of the stirring structure can greatly improve the acid leaching effect and improve the practicality of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the device body of the present utility model;

[0017] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 This is a schematic diagram of the heating structure of the utility model;

[0020] Figure 6 For the utility model Figure 5 Enlarged view of point C in the middle;

[0021] Figure 7 For the utility model Figure 1 Enlarged view of point D in the middle.

[0022] In the figure, 1. device body; 2. closing door; 3. feed port; 4. discharge port; 5. stirring structure; 6. rotating shaft; 7. stirring rod; 8. pulley; 9. belt body; 10. turntable; 11. filter plate; 12. through groove; 13. plug plate; 14. plug hole; 15. spring; 16. block; 17. plug hole; 18. evaporation chamber; 19. heating structure; 20. collecting box; 21. chute; 22. slider; 23. scraper. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-Figure 7 The device shown is for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders, which includes a device body 1 and a closed door 2. The upper top and bottom of the device body 1 are respectively provided with a feed port 3 and a discharge port 4. The device body 1 is provided with a stirring structure 5. The stirring structure 5 includes a plurality of rotating shafts 6 movably installed inside the device body 1, and a plurality of stirring rods 7 are installed on the rotating shaft 6. A pulley 8 is fixedly installed at one end of the rotating shaft 6, and the plurality of pulleys 8 are connected by a belt body 9. A turntable 10 is fixedly installed on the top of one of the rotating shafts 6, and a filter plate 11 connected to the device body 1 is movably installed at the bottom of the rotating shaft 6. By setting the stirring structure 5, the pyrite cinder and the dilute sulfuric acid can be mixed and stirred, so that the mixture of the two is more uniform, and the effect of the acid leaching is improved; after the pyrite cinder and the dilute sulfuric acid are poured into the interior of the device body 1 through the feed port 3, the turntable 10 is rotated to drive the rotating shaft 6 on the pulley 8 to rotate, and the other rotating shaft 6 is driven to rotate by the belt body 9. At this time, the multiple stirring rods 7 on the rotating shaft 6 begin to stir the mixed liquid of the pyrite cinder and the dilute sulfuric acid inside the device body 1, so that the two are mixed more fully. After the acid leaching is completed, it is filtered out through the filter plate 11 to the next step.

[0025] like Figure 3 As shown, a through groove 12 is provided on the filter plate 11, and an insert plate 13 is slidably installed inside the through groove 12 and penetrates to the outside of the closed door 2; inserting the insert plate 13 into the through groove 12 can block the mixed liquid of the pyrite cinder and the dilute sulfuric acid when the acid leaching of the pyrite cinder and the dilute sulfuric acid is not completed, and after the insert plate 13 is pulled out, the filter plate 11 can filter the mixed liquid.

[0026] like Figure 4As shown, a plurality of sockets 14 are provided on the rotating shaft 6, a plurality of mounting holes are provided inside the sockets 14, a spring 15 is fixedly installed inside the mounting hole, a clamping block 16 is fixedly installed at one end of the spring 15, and a plurality of clamping holes 17 for use with the clamping block 16 are provided on the end of the stirring rod 7; the clamping block 16 can be engaged with the clamping hole 17 under the elastic action of the spring 15, thereby fixing the stirring rod 7 on the rotating shaft 6, and this structure is a commonly used clamping structure in this field; since the stirring rod 7 stirs the raw material of pyrite slag, it is easy to wear or damage during the stirring process, and the stirring rod 7 parts need to be replaced regularly or irregularly. When replacing, the stirring rod 7 is pulled so that the clamping block 16 is squeezed and contracted to the inside of the spring 15. After the clamping block 16 is detached from the clamping hole 17, the stirring rod 7 can be disassembled and replaced.

[0027] like Figure 4 As shown, one end of the block 16 is set to be arc-shaped, which can reduce the friction force at one end of the block 16, making it easier for the block 16 to slide on the stirring rod 7 and facilitating the disassembly and installation of the stirring rod 7.

[0028] like Figure 5 As shown, an evaporation bin 18 is provided below the filter plate 11, and a plurality of heating structures 19 are fixedly installed inside the evaporation bin 18; after the filtrate after the acid leaching is completed enters the interior of the evaporation bin 18, the plurality of heating structures 19 are started to evaporate the internal solution of the evaporation bin 18, and when crystals appear, the heating work can be stopped and the crystals can be taken out through the discharge port 4.

[0029] like Figure 6 As shown, a collecting box 20 is provided below the discharge port 4, and a plurality of chutes 21 are provided on the device body 1. A slider 22 connected to the collecting box 20 is movably installed inside the chutes 21; the collecting box 20 can collect the purified industrial-grade ferrous sulfate crystals, and the chutes 21 and the slider 22 can reduce the friction between the collecting box 20 and the device body 1, making it convenient to pull out the industrial-grade ferrous sulfate inside the collecting box 20.

[0030] like Figure 7 As shown, a scraper 23 connected to the insert plate 13 is fixedly mounted on the closed door 2. Through the arrangement of the scraper 23, the solution adhering to the insert plate 13 can be scraped off and dropped onto the filter plate 11 for filtration during the withdrawal of the insert plate 13, thereby preventing the mixed liquid from being carried out of the insert plate 13, causing waste of raw materials and possible pollution of the environment.

[0031] The working process of the device for extracting industrial-grade ferrous sulfate from pyrite acid-making slag provided in this embodiment is as follows:

[0032] After the pyrite cinder and dilute sulfuric acid are poured into the interior of the device body 1 through the feed port 3, the turntable 10 is rotated to drive the rotating shaft 6 on the pulley 8 to rotate, and the other rotating shaft 6 is driven to rotate with it through the belt body 9. At this time, the multiple stirring rods 7 on the rotating shaft 6 begin to stir the pyrite cinder and dilute sulfuric acid mixed liquid inside the device body 1, so that the two are mixed more fully. After the acid leaching is completed, it is filtered out through the filter plate 11 and can be transferred to the next step.

[0033] The above description shows and describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should be within the scope of protection of the claims attached to the present invention.

Claims

1. A device for extracting industrial-grade ferrous sulfate from pyrite acid production slag, comprising a device body (1) and a closed door (2), wherein the top and bottom of the device body (1) are respectively provided with a feed inlet (3) and a discharge outlet (4), and characterized in that: The device body (1) is provided with a stirring structure (5), the stirring structure (5) comprising a plurality of rotating shafts (6) movably mounted inside the device body (1), a plurality of stirring rods (7) mounted on the rotating shafts (6), a pulley (8) fixedly mounted on one end of the rotating shaft (6), the plurality of pulleys (8) being connected to each other via a belt body (9), a turntable (10) fixedly mounted on the top of one of the rotating shafts (6), and a filter plate (11) connected to the device body (1) being movably mounted on the bottom of the rotating shaft (6).

2. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 1, characterized in that: A through slot (12) is provided on the filter plate (11), and a plug plate (13) is slidably mounted inside the through slot (12) and extends to the outside of the closed door (2).

3. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 1, characterized in that: The rotating shaft (6) is provided with a plurality of jacks (14), the interior of the jacks (14) is provided with a plurality of mounting holes, a spring (15) is fixedly installed in the interior of the mounting hole, a clamping block (16) is fixedly installed at one end of the spring (15), and the end of the stirring rod (7) is provided with a plurality of clamping holes (17) for use with the clamping block (16).

4. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 3, characterized in that: One end of the clamping block (16) is configured to be arc-shaped.

5. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 1, characterized in that: An evaporation chamber (18) is provided below the filter plate (11), and a plurality of heating structures (19) are fixedly installed inside the evaporation chamber (18).

6. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 1, characterized in that: A collection box (20) is provided below the discharge port (4).

7. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 6, characterized in that: A plurality of slide grooves (21) are provided on the device body (1), and a slider (22) connected to the collection box (20) is movably installed inside the slide groove (21).

8. The device for extracting industrial-grade ferrous sulfate from pyrite acid-making cinders according to claim 2, characterized in that: A scraper (23) connected to the inserting plate (13) is fixedly mounted on the closed door (2).

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