A crude antimony reduction smelting furnace

Abstract

The utility model relates to the technical field of crude antimony reduction, especially relates to a crude antimony reduction smelting furnace, including smelting furnace body, be equipped with the discharge port and the liquid outlet on the lateral wall of smelting furnace body, and the discharge port is located the top of liquid outlet, its characterized in that, be equipped with several oxygen lance limit device on the wall of smelting furnace body, the oxygen lance is limited in oxygen lance limit device, the oxygen lance limit device includes the first limit module and the second limit module that is symmetric with the first limit module, the first limit module includes the first limit support plate, the first limit support plate is fixed on the outer wall of smelting furnace body, the first electric cylinder is horizontally equipped on the first limit support plate, and the first arc limit block is fixed on the piston rod of first electric cylinder. The utility model relates to a crude antimony reduction smelting furnace, which can quickly replace the oxygen lance and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crude antimony reduction technology, and in particular to a crude antimony reduction smelting furnace. Background Technology

[0002] Crude antimony typically contains certain impurities such as lead, arsenic, and iron. The reduction process aims to remove these impurities and improve the purity of antimony. Pyrometallurgical reduction involves mixing crude antimony with a reducing agent in a smelting furnace and then melting it at high temperatures using an oxygen lance. This oxidizes or volatilizes the impurities, resulting in high-purity metallic antimony.

[0003] During the smelting process, the oxygen lance head often becomes clogged or damaged due to high temperatures and other operating conditions. At this time, the oxygen lance needs to be replaced in a timely manner. However, the oxygen lances in existing smelting furnaces have problems such as low replacement efficiency and inconvenience. Utility Model Content

[0004] The purpose of this invention is to provide a crude antimony reduction smelting furnace that allows for rapid replacement of the oxygen lance, thereby improving production efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A crude antimony reduction smelting furnace includes a furnace body, a slag discharge port and a liquid outlet on the side wall of the furnace body, the slag discharge port being located above the liquid outlet, and a plurality of oxygen lance limiting devices on the wall of the furnace body, wherein an oxygen lance is limited within the oxygen lance limiting devices.

[0007] The oxygen lance limiting device includes a first limiting module and a second limiting module symmetrically arranged with respect to the first limiting module. The first limiting module includes a first limiting support plate, which is fixed on the outer wall of the smelting furnace body. A first electric cylinder is horizontally arranged on the first limiting support plate, and a first arc-shaped limiting block is fixed on the piston rod of the first electric cylinder.

[0008] The second limiting module includes a second limiting support plate, which is fixed on the outer wall of the smelting furnace body. A second electric cylinder is horizontally provided on the second limiting support plate, and a second arc-shaped limiting block is fixed on the piston rod of the second electric cylinder.

[0009] The oxygen lance can be positioned between the first arc-shaped limiting block and the second arc-shaped limiting block.

[0010] As an improvement, a first pressure sensor is provided at the junction of the piston rod of the first electric cylinder and the first arc-shaped limiting block.

[0011] As an improvement, a second pressure sensor is provided at the junction of the piston rod of the second electric cylinder and the second arc-shaped limiting block.

[0012] As an improvement, a limiting groove is provided on the wall of the smelting furnace body, and a heat dissipation device is provided in the limiting groove.

[0013] As an improvement: the heat dissipation device includes a heat dissipation sleeve, which is fixed inside the limiting groove;

[0014] A plug-in hole is provided inside the heat dissipation sleeve, and a sealing block is provided inside the plug-in hole. The oxygen gun can be inserted into the plug-in hole, and a sealing gasket is provided on the oxygen gun. A water inlet is provided at the bottom of the heat dissipation sleeve, and a water outlet is provided at the top.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. When the oxygen lance needs to be replaced, the first and second electric cylinders are used to engage the first and second arc-shaped limiting blocks to limit the oxygen lance. The oxygen lance can then be pulled out from the insertion hole. For installation, the oxygen lance is inserted into the insertion hole, and the first and second electric cylinders are activated to bring the first and second arc-shaped limiting blocks into contact with both sides of the oxygen lance, thus limiting its position. This operation allows for quick replacement of the oxygen lance, improving production efficiency. 2. The heat dissipation sleeve cools the oxygen lance, extending its service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0018] Figure 1 A schematic diagram of the overall structure of a crude antimony reduction smelting furnace;

[0019] Figure 2 for Figure 1 Schematic diagram of part A in the middle;

[0020] The components are: 1. Smelting furnace body; 2. Slag discharge port; 3. Liquid outlet; 4. Oxygen lance; 5. First limiting support plate; 6. Second limiting support plate; 7. First electric cylinder; 8. Second electric cylinder; 9. First arc-shaped limiting block; 10. Second arc-shaped limiting block; 11. First pressure sensor; 12. Second pressure sensor; 13. Limiting groove; 14. Heat dissipation sleeve; 15. Insertion through hole; 16. Water inlet; 17. Water outlet; 18. Controller; 19. Sealing block; 20. Sealing gasket. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Please refer to Figures 1-2 A crude antimony reduction smelting furnace includes a furnace body 1, a slag discharge port 2 and a liquid outlet 3 on the side wall of the furnace body 1, the slag discharge port 2 being located above the liquid outlet 3, and a plurality of oxygen lance limiting devices on the wall of the furnace body 1, wherein an oxygen lance 4 is limited within the oxygen lance limiting devices.

[0023] The oxygen lance limiting device includes a first limiting module and a second limiting module symmetrically arranged with respect to the first limiting module. The first limiting module includes a first limiting support plate 5, which is fixed on the outer wall of the smelting furnace body 1. A first electric cylinder 7 is horizontally arranged on the first limiting support plate 5, and a first arc-shaped limiting block 9 is fixed on the piston rod of the first electric cylinder 7.

[0024] The second limiting module includes a second limiting support plate 6, which is fixed on the outer wall of the smelting furnace body 1. A second electric cylinder 8 is horizontally provided on the second limiting support plate 6, and a second arc-shaped limiting block 10 is fixed on the piston rod of the second electric cylinder 8. The oxygen lance 4 can be limited between the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10.

[0025] In this embodiment, when the oxygen lance 4 needs to be replaced, the first electric cylinder 7 and the second electric cylinder 8 are used to make the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10 contact and limit the oxygen lance 4. At this time, the oxygen lance 4 can be pulled out from the insertion hole 15. During installation, the oxygen lance 4 is inserted into the insertion hole 15, and the first electric cylinder 7 and the second electric cylinder 8 are activated to make the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10 fit against both sides of the oxygen lance 4 to limit the oxygen lance 4. Through the above operation, the oxygen lance 4 can be replaced quickly, improving production efficiency.

[0026] A first pressure sensor 11 is provided at the junction of the piston rod of the first electric cylinder 7 and the first arc-shaped limiting block 9. A second pressure sensor 12 is provided at the junction of the piston rod of the second electric cylinder 8 and the second arc-shaped limiting block 10. A limiting groove 13 is formed on the wall of the smelting furnace body 1, and a heat dissipation device is provided in the limiting groove 13. In this embodiment, the first pressure sensor 11 and the second pressure sensor 12 are used to sense the pressure of the first arc-shaped limiting block 9 on the oxygen lance 4 and the pressure of the second arc-shaped limiting block 10 on the oxygen lance 4, respectively, to ensure that the two are in contact with the surface of the oxygen lance 4, thereby limiting the oxygen lance 4. The first electric cylinder 7, the second electric cylinder 8, the first pressure sensor 11, and the second pressure sensor 12 are all connected to the control panel. The control panel can control the operation of the first electric cylinder 7 and the second electric cylinder 8, and receive the signals transmitted from the first pressure sensor 11 and the second pressure sensor 12. This is a prior art solution and will not be described again.

[0027] The heat dissipation device includes a heat dissipation sleeve 14, which is fixed inside the limiting groove 13. A insertion through hole 15 is provided inside the heat dissipation sleeve 14, and a sealing block 19 is provided inside the insertion through hole 15. The oxygen lance 4 can be inserted into the insertion through hole 15, and a sealing gasket 20 is provided on the oxygen lance 4. A water inlet 16 is provided at the bottom of the heat dissipation sleeve 14, and a water outlet 17 is provided at the top. In this embodiment, the water inlet 16 is connected to an external cooling water inlet pipe, and the water outlet 17 is connected to an external cooling water outlet pipe. A delivery pump is provided on the cooling water inlet pipe, allowing cooling water to flow into the heat dissipation sleeve 14 through the water inlet 16 and out through the water outlet 17. The surface of the oxygen lance 4 can adhere to the inner wall of the insertion through hole 15 on the heat dissipation sleeve 14, achieving heat exchange and cooling, thereby reducing the surface temperature of the oxygen lance 4 and improving its service life.

[0028] Meanwhile, the sealing gasket 20 can be pressed on top of the sealing block 19 to achieve a sealing effect. The heat dissipation sleeve 14, the sealing block 19, and the sealing gasket 20 are made of high-temperature resistant materials, such as nickel-based alloys and stainless steel.

[0029] Operating procedure: Insert the oxygen lance 4 into the insertion hole 15, so that the sealing gasket 20 is pressed against the sealing block 19. The controller 18 controls the first electric cylinder 7 and the second electric cylinder 8 to move synchronously, so that the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10 are pressed against the surface of the oxygen lance 4. The first pressure sensor 11 and the second pressure sensor 12 respectively sense the pressure of the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10 on the oxygen lance 4, so as to ensure that the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10 can limit the oxygen lance 4 between the first arc-shaped limiting block 9 and the second arc-shaped limiting block 10 with a certain pressure.

[0030] When it is necessary to remove and replace, first pull the tail of the oxygen gun 4, and the controller 18 controls the first electric cylinder 7 and the second electric cylinder 8 to move synchronously, so that the first arc-shaped limit block 9 and the second arc-shaped limit block 10 release the limit of the oxygen gun 4, and the oxygen gun 4 can be pulled out from the insertion hole 15 for replacement.

[0031] During the use of oxygen lance 4, cooling water can flow into heat sink 14 through inlet 16 and out through outlet 17. The surface of oxygen lance 4 can be attached to the inner wall of insertion through hole 15 on heat sink 14 to achieve heat exchange and cooling.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A crude antimony reduction smelting furnace, comprising a furnace body, wherein a slag discharge port and a liquid outlet are provided on the side wall of the furnace body, the slag discharge port being located above the liquid outlet, characterized in that, Several oxygen lance limiting devices are provided on the wall of the smelting furnace body, and an oxygen lance is limited within the oxygen lance limiting device. The oxygen lance limiting device includes a first limiting module and a second limiting module symmetrically arranged with respect to the first limiting module. The first limiting module includes a first limiting support plate, which is fixed on the outer wall of the smelting furnace body. A first electric cylinder is horizontally arranged on the first limiting support plate, and a first arc-shaped limiting block is fixed on the piston rod of the first electric cylinder. The second limiting module includes a second limiting support plate, which is fixed on the outer wall of the smelting furnace body. A second electric cylinder is horizontally provided on the second limiting support plate, and a second arc-shaped limiting block is fixed on the piston rod of the second electric cylinder. The oxygen lance can be positioned between the first arc-shaped limiting block and the second arc-shaped limiting block.

2. The crude antimony reduction smelting furnace according to claim 1, characterized in that, A first pressure sensor is provided at the junction of the piston rod of the first electric cylinder and the first arc-shaped limiting block.

3. The crude antimony reduction smelting furnace according to claim 1, characterized in that, A second pressure sensor is provided at the junction of the piston rod of the second electric cylinder and the second arc-shaped limiting block.

4. The crude antimony reduction smelting furnace according to claim 1, characterized in that, A limiting groove is provided on the wall of the smelting furnace body, and a heat dissipation device is provided in the limiting groove.

5. The crude antimony reduction smelting furnace according to claim 4, characterized in that, The heat dissipation device includes a heat dissipation sleeve, which is fixed inside the limiting groove; An insertion hole is provided inside the heat dissipation sleeve, and a sealing block is provided inside the insertion hole. The oxygen lance can be inserted into the insertion hole, and a sealing gasket is provided on the oxygen lance. The heat sink has a water inlet at the bottom and a water outlet at the top.

Images