Ferrovanadium slag reduction furnace

Abstract

The utility model relates to the technical field of metal smelting, and discloses a ferrovanadium slag reduction furnace. The ferrovanadium slag reduction furnace comprises a furnace body assembly, the right side of the upper end of the furnace body assembly is connected and provided with a natural gas conveying assembly, the upper end of the natural gas conveying assembly is provided with a storage box, the upper end of the storage box is provided with a conveying pipe, and the upper end of the conveying pipe is provided with an electric valve; a ferrovanadium slag conveying assembly is mounted at the upper end of the furnace body assembly, a driving rod is mounted at the upper end of the ferrovanadium slag conveying assembly, a baffle plate is connected to the left side of the driving rod, a conveying frame is mounted at the lower end of the baffle plate, and a conveying screw is mounted in the conveying frame. The conditions of crusting in the furnace, poor slag flowability, high water jacket temperature and the like are easily caused when more high-iron materials are subsequently fed, and the furnace condition of the reduction furnace is extremely easily influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting, in particular to an iron-vanadium slag reduction furnace. Background Art

[0002] A large amount of lead, zinc and high-iron materials are produced during the wet zinc smelting process of the zinc system. When more high-iron materials are input, it is easy to cause crusting in the furnace, poor slag fluidity, high water jacket temperature, etc., which can easily affect the reduction furnace condition and cause various production accidents in the reduction furnace.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN107764047A discloses a reduction furnace, comprising: a furnace body, wherein a closed and mutually spaced combustion chamber and reaction chamber are defined in the furnace body, wherein the reaction chamber has a switchable material port for entering and exiting materials; an air inlet pipe, wherein the air inlet pipe is connected to the combustion chamber to input combustible gas and combustion-supporting gas; a smoke exhaust pipe, wherein the smoke exhaust pipe is connected to the combustion chamber to exhaust smoke; and a vacuum system, wherein the vacuum system is connected to the reaction chamber to extract the gas in the reaction chamber. According to the reduction furnace of the present invention, the combustible gas and the combustion-supporting gas can be introduced into the combustion chamber at the same time through the air inlet pipe, and the reaction chamber can be heated by gas heating, thereby reducing production costs. The reduction furnace has a simple structure and reasonable arrangement, which can improve the working efficiency of the reduction furnace and has strong practicality.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it was found that the reduction furnace converts hazardous waste resources into general solid waste resources and consumes various difficult-to-treat materials, ultimately achieving a balance between the resource utilization and availability of zinc slag and lead-containing hazardous waste. Traditional reduction furnaces use iron ore as auxiliary materials, which leads to the subsequent input of more high-iron materials, which is prone to cause crusting in the furnace, poor slag fluidity, high water jacket temperature, etc., which can easily affect the reduction furnace condition. When adding ferrovanadium slag, it is necessary to gradually increase the ferrovanadium slag according to the situation in the furnace to prevent subsequent accidents in the furnace. The existence of these problems affects the use of the device. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides an ferrovanadium slag reduction furnace, which can effectively prevent the traditional reduction furnace from using iron ore as an auxiliary material, which may lead to crusting in the furnace, poor slag fluidity, high water jacket temperature, etc. when more high-iron materials are subsequently input, which may easily affect the condition of the reduction furnace.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ferrovanadium slag reduction furnace, comprising a furnace body assembly, a natural gas delivery assembly is connected and installed on the right side of the upper end of the furnace body assembly, which is convenient for delivering natural gas and storing natural gas through a storage box, and an ferrovanadium slag delivery assembly is connected and installed on the upper end of the furnace body assembly, which is convenient for placing and delivering ferrovanadium slag and facilitating the subsequent gradual addition of ferrovanadium slag according to the situation inside the reduction furnace body.

[0009] A storage box is installed at the upper end of the natural gas transmission assembly, and a delivery pipe is installed at the upper end of the storage box. An electric valve is installed at the upper end of the delivery pipe. The storage box stores natural gas for subsequent delivery through the delivery pipe.

[0010] A driving rod is installed at the upper end of the ferrovanadium slag conveying assembly, and a baffle plate is connected to the left side of the driving rod. A conveying frame is installed at the lower end of the baffle plate, and a conveying screw is installed inside the conveying frame. The conveying screw is installed inside the conveying frame, and the ferrovanadium slag inside the conveying frame is discharged through the conveying screw.

[0011] As the preferred technical solution of the present utility model, a reduction furnace body is installed at the upper end of the furnace body assembly, and a combustion structure is installed at the lower end of the reduction furnace body, an exhaust port is installed on the left side of the upper end of the reduction furnace body, a mixing rod is installed inside the reduction furnace body, and a motor is installed at the upper end of the mixing rod, a connecting port is installed on the left side of the motor, a smoke exhaust port is installed on the right side of the motor, and the smoke inside the reduction furnace body is discharged through the smoke exhaust port.

[0012] As a preferred technical solution of the utility model, an air pump is installed at the lower end of the natural gas transmission component, and a connecting pipe is installed at the upper end of the air pump, and the connecting pipe is convenient for discharging the gas generated by the air pump.

[0013] As a preferred technical solution of the utility model, a placement trough is installed at the upper end of the ferrovanadium slag conveying assembly, and a fixing plate is installed at the side end of the placement trough.

[0014] As a preferred technical solution of the utility model, the natural gas delivery assembly is installed on the upper right side of the reduction furnace body in the furnace body assembly, and the ferrovanadium slag delivery assembly is installed on the upper end of the connection port in the furnace body assembly.

[0015] As a preferred technical solution of the utility model, the installation position of the mixing rod is biased towards the left side inside the reduction furnace body, and a device port is installed at the lower right end of the reduction furnace body.

[0016] As a preferred technical solution of the utility model, the delivery pipe is inserted into the port of the connecting device, the natural gas is stored inside the storage box, and the connecting pipe has the same structure as the delivery pipe.

[0017] As a preferred technical solution of the utility model, the lower end of the conveying frame is connected to the upper end of the connecting port, the placement slot is a rectangular structure, the shielding plate is installed at the lower end of the placement slot, and the fixing plate is L-shaped.

[0018] Compared with the prior art, the utility model provides an iron-vanadium slag reduction furnace with the following beneficial effects:

[0019] The utility model replaces the original iron powder with ferrovanadium slag before entering the furnace through the setting of the overall device. By gradually increasing the processing capacity of ferrovanadium slag, iron powder is no longer put into the furnace. On the one hand, the purchase of iron ore is reduced. On the other hand, the storage and custody cost of hazardous waste transportation and stacking is reduced by processing the ferrovanadium slag of the zinc system, thereby greatly reducing the production cost. The ferrovanadium slag is gradually transported by installing the ferrovanadium slag conveying component. The research and development of the low iron-silicon ratio zinc extraction process in this project belongs to new technology and new process, which fills the technical gap in the reprocessing of solid waste and hazardous waste. Through continuous research on the production process, it has a great driving effect on the company's new process concept of lead-zinc co-production and complementarity, and effectively prevents the traditional reduction furnace from using iron ore as an auxiliary material, which leads to the subsequent input of more high-iron materials, which is easy to cause crusting in the furnace, poor slag fluidity, high water jacket temperature, etc., which can easily affect the reduction furnace condition. When adding ferrovanadium slag, it is necessary to gradually increase the ferrovanadium slag according to the situation in the furnace to prevent subsequent accidents in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the furnace assembly of the utility model structure;

[0022] Figure 3 This is a schematic diagram of a natural gas transmission component of the utility model structure;

[0023] Figure 4 This is a schematic diagram of the iron-vanadium slag conveying component of the utility model structure.

[0024] Among them: 1. furnace body assembly; 101. reduction furnace body; 102. combustion structure; 103. exhaust port; 104. mixing rod; 105. motor; 106. connection port; 107. smoke exhaust port; 2. natural gas transmission assembly; 201. storage box; 202. transmission pipe; 203. electric valve; 204. air pump; 205. connecting pipe; 3. ferrovanadium slag transmission assembly; 301. placement trough; 302. fixing plate; 303. driving rod; 304. shielding plate; 305. transmission frame; 306. transmission screw. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1 - Figure 4 In the present embodiment, an ferrovanadium slag reduction furnace comprises: a furnace body assembly 1, a natural gas delivery assembly 2 is connected and installed on the right side of the upper end of the furnace body assembly 1, a storage box 201 is installed on the upper end of the natural gas delivery assembly 2, and a delivery pipe 202 is installed on the upper end of the storage box 201, and an electric valve 203 is installed on the upper end of the delivery pipe 202, an ferrovanadium slag delivery assembly 3 is installed on the upper end of the furnace body assembly 1, a driving rod 303 is installed on the upper end of the ferrovanadium slag delivery assembly 3, and a baffle plate 304 is connected to the left side of the driving rod 303, a delivery frame 305 is installed on the lower end of the baffle plate 304, and a delivery screw 306 is installed inside the delivery frame 305, the natural gas delivery assembly 2 is installed on the right side of the upper end of the reduction furnace body 101 in the furnace body assembly 1, and the ferrovanadium slag delivery assembly 3 is installed on the upper end of the connection port 106 in the furnace body assembly 1.

[0029] Through the above structure; the furnace body assembly 1 is convenient for processing materials, and the melt inside the reduction furnace body 101 is stirred through the internal mixing rod 104, so that the ferrovanadium slag and the melt can be evenly stirred after the subsequent addition of ferrovanadium slag. The natural gas transmission assembly 2 is convenient for transmitting natural gas, and the natural gas is stored through the storage box 201, and the natural gas is evenly transmitted through the upper transmission pipe 202. The ferrovanadium slag transmission assembly 3 is convenient for placing and transmitting the ferrovanadium slag, so that the ferrovanadium slag can be gradually added according to the situation inside the reduction furnace body 101. The baffle plate 304 is driven by the driving rod 303 installed at the upper end to add the ferrovanadium slag in the placement tank 301.

[0030] See also Figure 1 - Figure 4 A reduction furnace body 101 is installed at the upper end of the furnace body assembly 1, and a combustion structure 102 is installed at the lower end of the reduction furnace body 101, an exhaust port 103 is installed on the left side of the upper end of the reduction furnace body 101, a mixing rod 104 is installed inside the reduction furnace body 101, and a motor 105 is installed on the upper end of the mixing rod 104, a connecting port 106 is installed on the left side of the motor 105, and a smoke exhaust port 107 is installed on the right side of the motor 105, the installation position of the mixing rod 104 is biased towards the left side of the interior of the reduction furnace body 101, and a device port is installed at the lower right end of the reduction furnace body 101.

[0031] Through the above structure: the material is processed and refined by installing the reduction furnace body 101, and it is convenient to install and connect the upper components later, the combustion structure 102 is installed at the lower end of the reduction furnace body 101, the combustion structure 102 adjusts the temperature in the reduction furnace body 101, and processes the material in the reduction furnace body 101, the exhaust port 103 is installed on the left side of the upper end of the reduction furnace body 101, and the relevant materials are discharged through the exhaust port 103, the mixing rod 104 is installed inside the reduction furnace body 101, and the mixing rod 104 is combined with the motor 105, which is convenient for the subsequent uniform stirring of the ferrovanadium slag and the melt inside the reduction furnace body 101, the connecting port 106 is installed at the upper end of the reduction furnace body 101, and the ferrovanadium slag conveying component 3 is connected and installed through the connecting port 106, which is convenient for the subsequent pouring of the ferrovanadium slag into the reduction furnace body 101, and the smoke exhaust port 107 is installed on the side end of the motor 105, and the smoke inside the reduction furnace body 101 is discharged through the smoke exhaust port 107.

[0032] See also Figure 1 - Figure 4 An air pump 204 is installed at the lower end of the natural gas transmission component 2, and a connecting pipe 205 is installed at the upper end of the air pump 204. The transmission pipe 202 is inserted into the connection device port, and the natural gas is stored inside the storage box 201. The connecting pipe 205 has the same structure as the transmission pipe 202.

[0033] Through the above structure: natural gas is stored and placed by installing the storage box 201, which is convenient for subsequent transportation through the delivery pipe 202 and subsequent use. The delivery pipe 202 is installed at the upper end of the storage box 201, and the other end of the delivery pipe 202 is installed at the side end of the reduction furnace body 101, which is convenient for the subsequent transportation of the natural gas inside the storage box 201 to the inside of the reduction furnace body 101 through the delivery pipe 202. The electric valve 203 is installed at the upper end of the delivery pipe 202, and the upper end of the delivery pipe 202 is adjusted by the electric valve 203, which is convenient for the subsequent adjustment of the natural gas delivery volume by the electric valve 203. The air pump 204 is connected to the connecting pipe 205 at the upper end for use, and the gas is generated by the air pump 204. The connecting pipe 205 is convenient for discharging the gas generated by the air pump 204.

[0034] See also Figure 1 - Figure 4 A placement trough 301 is installed at the upper end of the ferrovanadium slag conveying component 3, and a fixing plate 302 is installed at the side end of the placement trough 301. The lower end of the conveying frame 305 is connected to the upper end of the connecting port 106. The placement trough 301 is a rectangular structure, the shielding plate 304 is installed at the lower end of the placement trough 301, and the fixing plate 302 is L-shaped.

[0035] Through the above structure: the ferrovanadium slag is placed and stored by installing the placement groove 301, which is convenient for the subsequent transportation and use of the ferrovanadium slag. The fixed plate 302 is installed on the upper right side of the placement groove 301, and the fixed plate 302 is L-shaped. The placement groove 301 is connected through the fixed plate 302 and the driving rod 303 at the lower end is convenient for installation. The driving rod 303 is installed at the lower end of the fixed plate 302. The driving rod 303 is connected to the shielding plate 304. The shielding plate 304 connected at the upper end is driven to move by the driving rod 303, which is convenient for the subsequent discharge of the ferrovanadium slag inside the placement groove 301. The conveying frame 305 is installed at the lower end of the shielding plate 304. Through the movement of the shielding plate 304, the ferrovanadium slag at the upper end falls into the conveying frame 305 at the lower end. The conveying screw 306 is installed inside the conveying frame 305, and the ferrovanadium slag inside the conveying frame 305 is discharged by the conveying screw 306.

[0036] When in use, first, the interior of the reduction furnace body 101 is heated through the combustion structure 102, and the material inside the reduction furnace body 101 is processed. The upper end of the delivery pipe 202 is opened through the electric valve 203, and the delivery pipe 202 is connected to the storage box 201. The natural gas inside the storage box 201 is transported through the delivery pipe 202, and the natural gas is transported to the reduction furnace body 101. In order to reduce the utilization of resources, ferrovanadium slag is used to replace iron powder into the furnace. By gradually increasing the processing volume of ferrovanadium slag, iron powder is no longer put into the furnace. On the one hand, the purchase of iron ore is reduced. On the other hand, the storage and custody costs of hazardous waste transportation and stacking are reduced by processing the ferrovanadium slag of the zinc system, which greatly reduces the production cost. The ferrovanadium slag delivery component 3 is installed on the upper end of the reduction furnace body 101, and the ferrovanadium slag is placed in the inside of the placement groove 301. The side end of the placement groove 301 is installed with a fixed plate 302. The fixed plate 302 A driving rod 303 is installed at the lower end, and the driving rod 303 is connected to the baffle plate 304, and the baffle plate 304 is driven to move by the driving rod 303. The baffle plate 304 is installed at the lower end of the placement groove 301. When the baffle plate 304 moves, the ferrovanadium slag inside the placement groove 301 falls downward, and a conveying frame 305 is installed at the lower end of the baffle plate 304, and the ferrovanadium slag falls into the conveying frame 305. A conveying screw 306 is installed inside the conveying frame 305, and the outlet of the conveying frame 305 is installed at the upper end of the connecting port 106 at the upper end of the reduction furnace body 101. The conveying screw 306 is started through the terminal, and the ferrovanadium slag inside the conveying frame 305 is conveyed by the conveying screw 306, and the ferrovanadium slag is conveyed to the reduction furnace body 101. When the ferrovanadium slag falls into the reduction furnace body 101, the motor 105 drives the mixing rod 104 to stir the ferrovanadium slag inside the reduction furnace body 101 with the melt.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An iron-vanadium slag reduction furnace, characterized in that: The invention comprises a furnace body assembly (1), wherein a natural gas delivery assembly (2) is connected and installed on the right side of the upper end of the furnace body assembly (1), a storage box (201) is installed on the upper end of the natural gas delivery assembly (2), and a delivery pipe (202) is installed on the upper end of the storage box (201), and an electric valve (203) is installed on the upper end of the delivery pipe (202); an ferrovanadium slag delivery assembly (3) is installed on the upper end of the furnace body assembly (1), a driving rod (303) is installed on the upper end of the ferrovanadium slag delivery assembly (3), and a shielding plate (304) is connected to the left side of the driving rod (303), a delivery frame (305) is installed on the lower end of the shielding plate (304), and a delivery screw (306) is installed inside the delivery frame (305).

2. The ferrovanadium slag reduction furnace according to claim 1, characterized in that: A reduction furnace body (101) is installed at the upper end of the furnace body assembly (1), and a combustion structure (102) is installed at the lower end of the reduction furnace body (101); an exhaust port (103) is installed on the left side of the upper end of the reduction furnace body (101); a mixing rod (104) is installed inside the reduction furnace body (101), and a motor (105) is installed at the upper end of the mixing rod (104); a connection port (106) is installed on the left side of the motor (105), and a smoke exhaust port (107) is installed on the right side of the motor (105).

3. The ferrovanadium slag reduction furnace according to claim 1, characterized in that: An air pump (204) is installed at the lower end of the natural gas delivery component (2), and a connecting pipe (205) is installed at the upper end of the air pump (204).

4. The ferrovanadium slag reduction furnace according to claim 1, characterized in that: A placement trough (301) is installed at the upper end of the ferrovanadium slag conveying assembly (3), and a fixing plate (302) is installed at the side end of the placement trough (301).

5. The ferrovanadium slag reduction furnace according to claim 1, characterized in that: The natural gas delivery assembly (2) is installed on the right side of the upper end of the reduction furnace body (101) in the furnace body assembly (1), and the ferrovanadium slag delivery assembly (3) is installed on the upper end of the connection port (106) in the furnace body assembly (1).

6. The ferrovanadium slag reduction furnace according to claim 2, characterized in that: The installation position of the mixing rod (104) is biased towards the left side inside the reduction furnace body (101), and a device port is installed at the lower end of the right side of the reduction furnace body (101).

7. The ferrovanadium slag reduction furnace according to claim 3, characterized in that: The delivery pipe (202) is inserted through the port of the connection device, and the natural gas is stored inside the storage box (201). The connection pipe (205) has the same structure as the delivery pipe (202).

8. The ferrovanadium slag reduction furnace according to claim 4, characterized in that: The lower end of the conveying frame (305) is connected to the upper end of the connecting port (106), the placement groove (301) is a rectangular structure, the shielding plate (304) is installed at the lower end of the placement groove (301), and the fixing plate (302) is L-shaped.

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