CN109182741B

CN109182741B - Leaching device

Info

Publication number: CN109182741B
Application number: CN201811106574.1A
Authority: CN
Inventors: 李军; 李百荃
Original assignee: Zibo Ganda Environmental Protection Technology Co ltd
Current assignee: Zibo Ganda Environmental Protection Technology Co ltd
Priority date: 2018-09-21
Filing date: 2018-09-21
Publication date: 2020-12-29
Anticipated expiration: 2038-09-21
Also published as: CN109182741A

Abstract

A leaching device belongs to the technical field of metal leaching equipment. Including stirred vessel (6) and stirring power device, the lateral wall of stirred vessel (6) is equipped with the clamp cover, be equipped with two stirring bodies (10) in stirred vessel (6), the tip of two stirring bodies (10) stretches out stirred vessel (6) and connects stirring power device through the insulating part, be equipped with two terminals of connecting the power bipolar respectively in the outside of stirred vessel (6), the tip of two stirring bodies (10) stretches out stirred vessel (6) back and terminal connection. The stirring bodies are connected with a power supply through the binding posts while stirring, and the two stirring bodies become two electrodes in the stirring container, so that the condition of electrochemical reaction is formed in the stirring container, and the ore can be subjected to leaching reaction and electrochemical reaction simultaneously. And an independent electrode plate is not needed, the structure is simpler, and the leaching efficiency is improved.

Description

Leaching device

Technical Field

A leaching device, belonging to the technical field of metal leaching equipment.

Background

When lead concentrate and zinc concentrate are used for preparing lead and zinc respectively, corresponding leachate is needed for leaching, and electrochemical reduction reaction is needed to be carried out simultaneously in the leaching process. At present, a special leaching device which can ensure the stirring condition during leaching and can meet the electrochemical reduction is lacked.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the leaching device is provided, so that the condition of electrochemical reaction can be formed in the stirring container, the ore can be subjected to leaching reaction and electrochemical reaction simultaneously, and the leaching efficiency is higher.

The technical scheme adopted by the invention for solving the technical problems is as follows: the leaching device is characterized in that: including stirred vessel and stirring power device, stirred vessel's lateral wall is equipped with and presss from both sides the cover, is equipped with two stirring bodies in stirred vessel, and the tip of two stirring bodies stretches out stirred vessel and connects stirring power device through the insulating part, is equipped with two terminals of connecting the power bipolar respectively in stirred vessel's outside, and the tip of two stirring bodies stretches out stirred vessel back and terminal connection.

Preferably, the stirring power device comprises two stirring motors, and an output shaft of each stirring motor is connected with the end part of one stirring body.

Preferably, the upper opening of the stirring container is provided, a sealing cover plate is fixed at the upper opening of the stirring container, and the two stirring bodies are transversely arranged in the stirring container.

Preferably, the bottom of the stirring container is provided with a separating body, the upper end of the separating body is positioned between the two stirring bodies, and the width of the separating body is gradually increased from top to bottom.

Preferably, a temperature sensor and a pressure sensor are arranged in the stirring container, a pressure gauge and an air release valve are arranged on the sealing cover plate, and the pressure sensor is connected with the air release valve through a controller.

Preferably, the stirring container is fixed on the upper side of a workbench, the stirring motor is fixed at one end of the stirring container through a motor support, and the workbench is provided with a control box.

Preferably, the material of the stirring body is a tungsten electrode material.

Preferably, the end of the stirring body extends out of the stirring container and then is connected with the binding post through a carbon brush.

Preferably, the jacket is connected with a circulating cooling pipe.

Preferably, the voltage of the power supply is 10V-30V.

Compared with the prior art, the invention has the beneficial effects that:

1. the raw material ore is crushed and then mixed with the leachate and then stirred in the stirring container, the stirring bodies are connected with a power supply through the binding posts while stirring, and the two stirring bodies in the stirring container become two electrodes, so that the electrochemical reaction condition is formed in the stirring container, and the leaching reaction and the electrochemical reaction of the leachate can be simultaneously carried out on the ore. Need not solitary plate electrode, the structure is simpler, improves and leaches efficiency.

2. Two stirring bodies are connected with a stirring motor respectively, and the speed of two stirring bodies is independently controlled, so that the rotating speeds of the two stirring bodies are different, disturbance is formed in a stirring container, stirring is more uniform, and the leaching effect is improved. The speed of the two stirring motors changes alternately, the electric field is matched for frequent alternation, and the electrochemical reaction efficiency is higher. The method meets the leaching reaction conditions of lead or zinc, so that the lead or zinc element in the ore is quickly separated, and the preparation efficiency is improved.

3. The bottom of stirred vessel is equipped with a separator, and the upper end of separator is located between two stirring bodies, and the in-process of two stirring body rotary stirring forms a stirring dead angle in the below between two stirring bodies easily, then can effectively avoid the appearance at stirring dead angle through the separator, and the stirring is more even, and the separator can prevent that the material of two stirring body belows from bunching each other simultaneously, and the material always carries out leaching reaction and the electrochemical reaction of leaching agent under the stirring of stirring body.

4. According to the invention, slag and a small amount of leachate are added into the stirring container for leaching, so that dry leaching is realized, the cost is lower, and the method is more environment-friendly.

Drawings

FIG. 1 is a schematic perspective view of the leaching apparatus.

FIG. 2 is a schematic perspective view of the leaching apparatus with the sealing cover removed.

Fig. 3 is a partially enlarged view of a portion a in the figure.

Wherein: 1. the device comprises a workbench 2, a motor support 3, a stirring motor 4, a control box 5, a circulating cooling pipe 6, a stirring container 7, an air release valve 8, a pressure gauge 9, a sealing cover plate 10, a stirring body 11, a separating body 12, a binding post 13 and a carbon brush.

Detailed Description

FIGS. 1 to 3 show preferred embodiments of the leaching apparatus, and the present invention will be further described with reference to FIGS. 1 to 3.

Referring to fig. 1-2, the leaching device comprises a stirring container 6 and a stirring power device, wherein a jacket is arranged on the outer side wall of the stirring container 6, the jacket is connected with a circulating cooling pipe 5, two stirring bodies 10 are arranged in the stirring container 6, the end parts of the two stirring bodies 10 extend out of the stirring container 6 and are connected with a stirring motor 3 through an insulating part, two binding posts 12 respectively connected with two poles of a power supply are arranged outside the stirring container 6, and the end parts of the two stirring bodies 10 extend out of the stirring container 6 and are connected with the binding posts 12.

The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.

Stirring container 6 is fixed at the 1 upside of a workstation, and agitator motor 3 passes through motor support 2 to be fixed in the one end of stirring container 6, is equipped with control box 4 on the workstation 1. In this embodiment, two stirring motors 3 are fixed on the table 1, and an output shaft of each stirring motor 3 is connected with an end of one stirring body 10. The speed of two stirring bodies 10 is controlled independently, can make the rotational speed of two stirring bodies 10 different to form the disturbance in stirred vessel 6, stir more evenly, improve and leach the effect. The speed of the two stirring motors 3 changes alternately, the electric field is matched for frequent alternation, and the electrochemical reaction efficiency is higher. The method meets the leaching reaction conditions of lead or zinc, so that the lead or zinc element in the ore is quickly separated, and the preparation efficiency is improved. The stirring motor 3 in this embodiment is a reduction motor.

The upper side opening of the stirring container 6 is arranged, a sealing cover plate 9 is fixed at the upper side opening of the stirring container 6, and the two stirring bodies 10 are transversely arranged in the stirring container 6. A temperature sensor and a pressure sensor are arranged in the stirring container 6, a pressure gauge 8 and an air release valve 7 are arranged on the sealing cover plate 9, and the pressure sensor is connected with the air release valve 7 through a controller. When the pressure in the stirring container 6 exceeds a set value, the controller in the control box 4 controls the air release valve 7 to be opened, so that the pressure in the stirring container 6 is stable, and the work is safe. The pressure in the stirring container 6 can also be observed through the pressure gauge 8, and if the pressure exceeds the upper limit, the air discharge valve 7 is controlled to discharge air through a button on the control box 4.

The stirring bodies 10 in this embodiment are spirally arranged, the two stirring bodies 10 are alternately arranged, and the material of the stirring bodies 10 is tungsten electrode material. The end of the stirring body 10 extends out of the stirring container 6 and then is connected with the terminal 12 through the carbon brush 13, and the carbon brush 13 is in contact with the end of the rotating stirring body 10 to realize continuous transmission of current, although a slip ring can be adopted to connect the stirring body 10 with the terminal 12 in the embodiment.

Referring to fig. 3, the bottom of the stirring container 6 is provided with a partition body 11, the upper end of the partition body 11 is positioned between two stirring bodies 10, and the width of the partition body 11 is gradually increased from top to bottom. The speed of two stirring bodies 10 is controlled independently, can make the rotational speed of two stirring bodies 10 different to form the disturbance in stirred vessel 6, stir more evenly, improve and leach the effect. The speed of the two stirring motors 3 changes alternately, the electric field is matched for frequent alternation, and the electrochemical reaction efficiency is higher. The method meets the leaching reaction conditions of lead or zinc, so that the lead or zinc element in the ore is quickly separated, and the preparation efficiency is improved.

Crushing the zinc concentrate, adding the crushed zinc concentrate and leaching solution into a stirring container 6, leaching while performing electrochemical reduction under the stirring condition, wherein the power supply voltage of the electrochemical reduction is 10V, and the current is 10A; the leaching temperature is 80 ℃, and the leaching time is 60 min; the leaching solution of zinc comprises water and the following raw materials in parts by weight: 31.2 parts of ferric chloride, 58.7 parts of sodium chloride, 4.3 parts of yttrium-rich and 4.2 parts of hydrochloric acid; adding zinc powder accounting for 0.1 percent of the mass of the zinc concentrate, and finally detecting that the zinc content in the filter residue Y1 is 0.004 percent. Under the same condition, the existing leaching equipment needs to leach for at least 1.5 hours to achieve the leaching effect that the zinc content in the filter residue Y1 is 0.004%.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, so that any person skilled in the art can make modifications or changes in the technical content disclosed above. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A leaching apparatus, comprising: the device comprises a stirring container (6) and a stirring power device, wherein a jacket is arranged on the outer side wall of the stirring container (6), two stirring bodies (10) are arranged in the stirring container (6), the end parts of the two stirring bodies (10) extend out of the stirring container (6) and are connected with the stirring power device through an insulating part, two binding posts (12) which are respectively connected with two poles of a power supply are arranged outside the stirring container (6), and the end parts of the two stirring bodies (10) extend out of the stirring container (6) and are connected with the binding posts (12); the stirring power device comprises two stirring motors (3), the output shaft of each stirring motor (3) is connected with the end part of one stirring body (10), and the speeds of the two stirring motors (3) are changed alternately; the upper opening of the stirring container (6) is arranged, a sealing cover plate (9) is fixed at the upper opening of the stirring container (6), and the two stirring bodies (10) are transversely arranged in the stirring container (6); the bottom of stirring container (6) is equipped with a separator (11), and the upper end of separator (11) is located between two stirring bodies (10), and the width of separator (11) increases gradually from top to bottom.

2. The leaching apparatus according to claim 1, wherein: be equipped with temperature sensor and pressure sensor in stirred vessel (6), be equipped with manometer (8) and bleed valve (7) on sealed apron (9), pressure sensor passes through the controller and connects bleed valve (7).

3. The leaching apparatus according to claim 1, wherein: stirring container (6) are fixed in a workstation (1) upside, and agitator motor (3) are fixed in the one end of stirring container (6) through motor support (2), are equipped with control box (4) on workstation (1).

4. The leaching apparatus according to claim 1, wherein: the stirring body (10) is made of tungsten electrode materials.

5. The leaching apparatus according to claim 1, wherein: the end part of the stirring body (10) extends out of the stirring container (6) and then is connected with the binding post (12) through the carbon brush (13).

6. The leaching apparatus according to claim 1, wherein: the jacket is connected with a circulating cooling pipe (5).

7. The leaching apparatus according to claim 1, wherein: the voltage of the power supply is 10V-30V.