Vanadium pentoxide roasting plant

Abstract

The utility model discloses a vanadium pentoxide roasting plant which comprises a plant body, a material preparation mechanism is arranged in the plant body, a roasting rotary kiln is arranged outside the plant body, and mixing equipment is arranged between the material preparation mechanism and the roasting rotary kiln. The mixing equipment is connected with the material preparation mechanism in the plant body and extends outwards to be connected with the roasting rotary kiln; the mixing equipment is a rotary mixing cylinder which is obliquely arranged, a plurality of rotatable spiral fan blades are arranged in the rotary mixing cylinder, the spiral fan blades are arranged at intervals in the axial direction of the rotary mixing cylinder, the end, located inside the plant body, of the rotary mixing cylinder is a feeding end, and the end, located outside the plant body, of the rotary mixing cylinder is a discharging end; the height of the feeding end is larger than that of the discharging end. According to the utility model, the cost loss caused by frequent transfer can be reduced; according to the utility model, dust impurities generated in the vanadium pentoxide production process can be effectively prevented from overflowing to the outside air environment, and the pollution to the surrounding environment of a production site is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vanadium pentoxide production technology, and in particular to a vanadium pentoxide roasting plant. Background Technology

[0002] The production of vanadium pentoxide requires mixing and roasting of raw materials. Current technologies typically separate these processes, consuming significant manpower and resources and occupying considerable production space during raw material transportation. Furthermore, since the raw materials for vanadium pentoxide production are all powders, the mixing process generates substantial amounts of dust and impurities, which, when released into the air, pollute the surrounding environment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vanadium pentoxide roasting plant that can effectively improve production efficiency and reduce environmental pollution.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a vanadium pentoxide roasting plant, including a plant body, a material preparation mechanism inside the plant body, a roasting rotary kiln outside the plant body, and a mixing device between the material preparation mechanism and the roasting rotary kiln. The mixing device is connected to the material preparation mechanism inside the plant body and extends outward to connect with the roasting rotary kiln. The mixing device is an inclined rotary mixing cylinder, which has multiple rotatable spiral fan blades inside. The spiral fan blades are arranged at intervals along the axial direction of the rotary mixing cylinder. The end of the rotary mixing cylinder inside the plant body is the feeding end, and the end of the rotary mixing cylinder outside the plant body is the discharging end. The height of the feeding end is greater than the height of the discharging end.

[0005] As an improvement to the above solution: the material preparation mechanism includes a vanadium slag silo, a sodium carbonate silo, and a conveying device; the vanadium slag silo and the sodium carbonate silo are suspended above the conveying device, and the conveying device is connected to the feed end of the rotary mixing drum; the vanadium slag silo and the sodium carbonate silo are arranged sequentially along the conveying direction of the conveying device, and the sodium carbonate silo is located between the vanadium slag silo and the rotary mixing drum.

[0006] As an improvement to the above scheme: both the vanadium slag silo and the sodium carbonate silo are conical silos, and the small end of the conical silo is provided with a discharge port; the discharge port is an openable and closable structure, and an electronic scale is provided at the discharge port.

[0007] As an improvement to the above solution: the small end of the conical hopper is provided with a slot, and also includes a baffle plate that passes through the slot and is horizontally inserted into the inside of the conical hopper. The end of the baffle plate inside the conical hopper is a circular plate structure that matches the internal size of the conical hopper, and the end of the baffle plate outside the conical hopper is a handle end.

[0008] As an improvement to the above solution: the material preparation mechanism further includes a dust collector and an induced draft fan; the dust collector is connected to the feed end of the rotary mixing drum and also to the induced draft fan.

[0009] As an improvement to the above scheme: the calcining rotary kiln is set at an angle, and the height of the end of the calcining rotary kiln connected to the mixing equipment is higher than the height of the other end.

[0010] The beneficial effects of this utility model are as follows: By using a factory building as the production site for vanadium pentoxide mixing and roasting, the mixing equipment is located inside the factory building, while the roasting equipment is located outside. The mixing equipment serves as a relay device between the internal and external equipment of the factory building, enabling continuous mixing and roasting operations, thereby reducing the cost losses caused by frequent transfers. Furthermore, by placing the mixing equipment, which is prone to generating dust and impurities, inside the factory building and tilting it to raise the feed end, the dust and impurities generated during mixing rise to the feed inlet. These dust and impurities are then collected and filtered by a dust collector and an induced draft fan, effectively preventing the dust and impurities generated during vanadium pentoxide production from spilling into the external air environment and reducing pollution of the surrounding environment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structural layout of this utility model.

[0012] The diagram is labeled as follows: 100-Plant building, 200-Mixing equipment, 300-Roasting rotary kiln, 410-Vanadium slag silo, 420-Sodium carbonate silo, 430-Electronic scale, 440-Baffle plate, 500-Conveying equipment, 600-Dust collector, 700-Exhaust fan. Detailed Implementation

[0013] To facilitate understanding of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0014] In the description of this utility model, it should be noted that the terms "front", "rear", "left", "right", "up", "down", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] like Figure 1As shown, the main body of the vanadium pentoxide roasting plant disclosed in this utility model is the plant body 100. A material preparation mechanism is installed inside the plant body 100, and a roasting rotary kiln 300 is installed outside the plant body 100. The material preparation mechanism is used to prepare the raw materials required for the vanadium pentoxide roasting section, and the roasting rotary kiln 300 is used to roast the vanadium pentoxide raw materials. To achieve continuous production of vanadium pentoxide from material preparation to roasting, this utility model includes a mixing device 200 between the material preparation mechanism and the roasting rotary kiln 300. The mixing device 200 mixes the raw materials for vanadium pentoxide production while simultaneously transferring the raw materials to the roasting rotary kiln 300. Through this structural arrangement, this utility model effectively reduces the transfer steps of vanadium pentoxide raw materials, saves transfer costs, and improves the working efficiency of the vanadium pentoxide roasting section.

[0016] Specifically, such as Figure 1 As shown, the mixing device 200 used in this invention employs a rotary mixing drum. The main body of the rotary mixing drum is a cylindrical structure. A rotating shaft is set on the central axis inside the rotary mixing drum, and multiple spiral fan blades are installed on the rotating shaft. The multiple spiral fan blades are arranged at intervals along the axial direction of the rotating shaft. The spiral fan blades mix and convey the materials fed into the rotary mixing drum by rotating with the rotating shaft. In order to improve the conveying efficiency of the mixed materials, this invention sets the rotary mixing drum at an angle. The end of the rotary mixing drum located inside the plant body 100 is the feeding end, and the end of the rotary mixing drum located outside the plant body 100 is the discharging end. The angled setting makes the height of the feeding end greater than the height of the discharging end, which can promote the material at the feeding end to move towards the discharging end. At the same time, since a large amount of dust is generated during the mixing process, this invention, by setting the rotary mixing drum at an angle, can make the dust and impurities generated during the mixing work rise to the upward-curved feeding end of the rotary mixing drum, preventing these dust and impurities from entering the external environment through the discharging end of the rotary mixing drum. Furthermore, this utility model also includes a dust collector 600 and an induced draft fan 700 to collect and filter the dust generated during the mixing process, such as... Figure 1 As shown, the dust collector 600 and the induced draft fan 700 are installed in the space above the rotary mixing drum of the plant body 100. The dust collector 600 is connected to the feed end of the rotary mixing drum through a pipe and is also connected to the induced draft fan 700. The dust and impurities collected at the feed end of the rotary mixing drum are drawn into the dust collector 600 by the exhaust operation of the induced draft fan 700. The dust collector 600 filters these dust and impurities, preventing them from spreading to the external environment of the plant body 100 while ensuring that the air inside the plant body 100 is not polluted.

[0017] like Figure 1As shown, the material preparation mechanism of this utility model consists of a vanadium slag silo 410, a sodium carbonate silo 420, and a conveying device 500. Both the vanadium slag silo 410 and the sodium carbonate silo 420 are conical silos with a smaller lower end and a larger upper end. The smaller lower end is provided with a discharge port, and the larger upper end is provided with a feed port. The vanadium slag silo 410 and the sodium carbonate silo 420 are suspended above the conveying device 500. The vanadium slag silo 410 and the sodium carbonate silo 420 are arranged sequentially along the conveying direction of the conveying device 500. The sodium carbonate silo 420 is located between the vanadium slag silo 410 and the rotary mixing drum. The conveying device 500 is connected to the feed end of the rotary mixing drum. The conveying device 500 can be a plate conveyor. During the material preparation process, the vanadium slag stored in the vanadium slag silo 410 and the sodium carbonate stored in the sodium carbonate silo 420 are directly fed onto the conveying equipment 500 and then directly conveyed into the rotary mixing drum for mixing.

[0018] Furthermore, in order to achieve accurate control of the material feed rate, such as Figure 1 As shown, this utility model configures the discharge ports of the vanadium slag silo 410 and the sodium carbonate silo 420 as openable and closable structures, and installs an electronic scale 430 at the discharge port to accurately weigh the discharge amount. The opening and closing action of the discharge port is achieved by a baffle plate 440 installed at the discharge port. A slot is provided at the small end of the conical silo, and the slot and the baffle plate 440 form a sliding fit. One end of the baffle plate 440 passes horizontally through the slot and extends into the conical silo to isolate the material. The other end of the baffle plate 440 is located outside the conical silo. The end of the baffle plate 440 inside the conical silo is a circular plate structure adapted to the internal dimensions of the conical silo, and the end of the baffle plate 440 outside the conical silo is a handle end for easy operation of the baffle plate 440.

[0019] like Figure 1 As shown, the present invention also tilts the calcining rotary kiln 300 so that the height of the end of the calcining rotary kiln 300 connected to the mixing equipment 200 is higher than the height of the other end; a burner is set at the lower end of the calcining rotary kiln 300, and the calcination is carried out by tilting the burner upward into the calcining rotary kiln 300, which can improve the calcination effect on the mixed materials.

Claims

1. A vanadium pentoxide roasting plant, characterized in that: The system includes a plant body (100), an internal material preparation mechanism, and an external calcination rotary kiln (300). A mixing device (200) is located between the material preparation mechanism and the calcination rotary kiln (300). The mixing device (200) is connected to the material preparation mechanism inside the plant body (100) and extends outward to connect with the calcination rotary kiln (300). The mixing device (200) is an inclined rotary mixing cylinder with multiple rotatable spiral fan blades inside. The spiral fan blades are arranged at intervals along the axial direction of the rotary mixing cylinder. The end of the rotary mixing cylinder inside the plant body (100) is the feeding end, and the end of the rotary mixing cylinder outside the plant body (100) is the discharging end. The height of the feeding end is greater than the height of the discharging end.

2. The vanadium pentoxide roasting plant as described in claim 1, characterized in that: The material preparation mechanism includes a vanadium slag silo (410), a sodium carbonate silo (420), and a conveying device (500); the vanadium slag silo (410) and the sodium carbonate silo (420) are suspended above the conveying device (500), and the conveying device (500) is connected to the feed end of the rotary mixing drum; the vanadium slag silo (410) and the sodium carbonate silo (420) are arranged sequentially along the conveying direction of the conveying device (500), and the sodium carbonate silo (420) is located between the vanadium slag silo (410) and the rotary mixing drum.

3. The vanadium pentoxide roasting plant as described in claim 2, characterized in that: Both the vanadium slag silo (410) and the sodium carbonate silo (420) are conical silos, with a discharge port at the small end of the conical silo; the discharge port is an openable and closable structure, and an electronic scale (430) is provided at the discharge port.

4. The vanadium pentoxide roasting plant as described in claim 3, characterized in that: The conical hopper has a slot at its small end and also includes a baffle plate (440) that passes through the slot and is horizontally inserted into the conical hopper. The baffle plate (440) is a circular plate structure that matches the internal size of the conical hopper at one end inside the conical hopper, and the baffle plate (440) is a handle at the other end outside the conical hopper.

5. The vanadium pentoxide roasting plant as described in claim 2, characterized in that: The material preparation mechanism also includes a dust collector (600) and an induced draft fan (700); the dust collector (600) is connected to the feed end of the rotary mixing drum and the induced draft fan (700).

6. The vanadium pentoxide roasting plant as described in claim 1, characterized in that: The calcining rotary kiln (300) is inclined, and the height of the end of the calcining rotary kiln (300) connected to the mixing equipment (200) is higher than the height of the other end.

Images