Vanadium extraction rotary kiln discharging device capable of prolonging service life
The redesigned outflow device for vanadium extraction rotary kilns uses a cooling mechanism and reinforcing structures to address thermal and mechanical stress, extending its lifespan and reducing maintenance costs.
Patent Information
- Application Number
- CN202422225048.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing vanadium-elevating rotary kiln discharge device is susceptible to frequent damage and blockage caused by high temperature, chemical erosion, mechanical wear and material erosion, and has a short service life and increases production costs.
A discharge device including grate plate, vertical slip pipe, horizontal slip pipe, vanadium liquid circulation pipeline, circulation pump, cooler and reinforced steel plate is designed. The cooling device is sent to the cooler through the circulation pump and the high-temperature material is washed with circulating vanadium liquid, combined with the reinforced steel plate reinforcement structure, extending the service life of the equipment.
It effectively reduces the erosion of high-temperature materials on slip pipes, extends the service life of vertical slip pipes and horizontal slip pipes to more than 2 years, improves production stability and output, and reduces production costs.
Smart Images
Figure CN223106645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a discharging device for a long-life vanadium extraction rotary kiln, belonging to the technical field of vanadium extraction rotary kiln equipment. Background Art
[0002] At present, the main methods for extracting vanadium pentoxide from vanadium-titanium magnetite in the world are sodium roasting and calcification roasting, and their roasting equipment are all rotary kilns. The vanadium slag is roasted at a high temperature of 900 °C in the rotary kiln and reaches the discharging end of the rotary kiln. The clinker is as high as 600 - 700 °C. The discharging device of the rotary kiln has to bear multiple effects such as high temperature, chemical erosion, mechanical wear, material impact and scouring, etc. Therefore, the discharging device is extremely easy to be damaged and blocked, and generally the discharging device has to be replaced once every six months.
[0003] The existing discharging device is composed of a vertical chute and a screw conveyor. The disadvantages of this discharging device are that the high-temperature clinker of the rotary kiln will erode the chute and the water-cooled screw conveyor, resulting in the gradual erosion of the vertical chute layer by layer, and the screw conveyor is extremely easy to be blocked with materials, shortening the service life and increasing the production cost. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a discharging device for a vanadium extraction rotary kiln that can extend the service life. This discharging device for a vanadium extraction rotary kiln can cool the discharged materials, reduce the erosion of the chute, extend the service life of the equipment, and can effectively reduce the production cost.
[0005] The technical solution for solving the above technical problem is as follows:
[0006] A discharging device for a vanadium extraction rotary kiln that can extend the service life, which includes a grate plate, a vertical chute, a horizontal chute, a vanadium liquid circulation pipeline, a circulation pump, a cooler, a vanadium liquid inlet pipeline, and a vanadium liquid outlet pipeline. The grate plate is installed at the upper feeding end of the vertical chute. The lower discharging end of the vertical chute is connected to the middle part of the horizontal chute. One end of the horizontal chute is connected to the vanadium liquid circulation pipeline. The vanadium liquid circulation pipeline is connected to the circulation pump. The discharging end of the horizontal chute is connected to the feeding port of the ball mill. A cooler is installed at the upper part of the vertical chute. There is a vanadium liquid inlet pipeline at the lower part of the cooler connected to the vanadium liquid circulation pipeline. There is a vanadium liquid outlet pipeline at the upper part of the cooler connected to the horizontal chute.
[0007] For the above-mentioned discharging device for a vanadium extraction rotary kiln that can extend the service life, the size of the discharging end of the vertical chute is larger than that of the feeding end. Multiple reinforcing steel plates are respectively installed on both sides of the middle and lower parts of the vertical chute. The plate surface of the reinforcing steel plate is L-shaped. The inner edge of the L-shape of the reinforcing steel plate is welded to the pipe wall of the vertical chute.
[0008] The above-mentioned discharging device of the vanadium-extracting rotary kiln that can extend the service life, wherein the cooler is opposite to the high-temperature material dropping point of the vertical chute pipe, and a relief valve is installed in the vanadium liquid outlet pipeline at the upper part of the cooler.
[0009] The beneficial effects of the present utility model are as follows:
[0010] The grate plate of the present utility model can prevent massive materials from blocking the vertical chute pipe; the circulating pump sends a part of the circulating vanadium liquid into the cooler to take away the heat at the high-temperature material dropping point of the vertical chute pipe, so that the cooler can cool the high-temperature material dropping point of the vertical chute pipe; the circulating pump is connected to the horizontal chute pipe through the vanadium liquid circulation pipeline, and the circulating vanadium liquid flushes the high-temperature materials falling into the horizontal chute pipe into the ball mill; the reinforcing steel plate can reinforce the vertical chute pipe.
[0011] The structure of the present utility model is simple and the construction is easy. It can cool the high-temperature discharged materials, reduce the erosion of the chute pipe, and can extend the service life of the vertical chute pipe and the horizontal chute pipe to more than 2 years. The production is stable, the production cost is reduced, the output is increased, and it is suitable for large-scale production. Description of the Drawings
[0012] Figure 1 is the structural schematic diagram of the present utility model;
[0013] Figure 2 is the structural schematic diagram of the vertical chute pipe and the cooler;
[0014] Figure 3 is Figure 2 the side view of
[0015] Figure 4 is the plan view of the reinforcing steel plate.
[0016] The marks in the figure are as follows: grate plate 1, vertical chute pipe 2, horizontal chute pipe 3, vanadium liquid circulation pipeline 4, circulating pump 5, ball mill 6, cooler 7, vanadium liquid inlet pipeline 8, vanadium liquid outlet pipeline 9, reinforcing steel plate 10, relief valve 11. Detailed Embodiment
[0017] The present utility model is composed of a grate plate 1, a vertical chute pipe 2, a horizontal chute pipe 3, a vanadium liquid circulation pipeline 4, a circulating pump 5, a ball mill 6, a cooler 7, a vanadium liquid inlet pipeline 8, a vanadium liquid outlet pipeline 9, and a reinforcing steel plate 10.
[0018] As shown in the figure, the grate plate 1 is installed at the upper feeding end of the vertical chute pipe 2. The grate plate 1 can block massive materials from entering the vertical chute pipe 2 and prevent massive materials from blocking the vertical chute pipe 2. The size of the discharging end of the vertical chute pipe 2 is larger than that of the feeding end, which can make the materials slide down smoothly.
[0019] As shown in the figure, the lower discharge end of the vertical chute pipe 2 is connected to the middle part of the horizontal chute pipe 3. One end of the horizontal chute pipe 3 is connected to the vanadium liquid circulation pipeline 4, and the vanadium liquid circulation pipeline 4 is connected to the circulation pump 5. The discharge end of the horizontal chute pipe 3 is connected to the feed inlet of the ball mill 6. The material falls into the horizontal chute pipe 3 through the vertical chute pipe 2, and the circulation pump 5 sends the pressurized circulating vanadium liquid into the horizontal chute pipe 3 through the vanadium liquid circulation pipeline 4, and the circulating vanadium liquid flushes the high-temperature material falling into the horizontal chute pipe 3 into the ball mill 6.
[0020] As shown in the figure, a cooler 7 is installed on the upper part of the vertical chute pipe 2. The cooler 7 is opposite to the high-temperature material dropping point of the vertical chute pipe 2, and the cooler 7 can cool down the high-temperature material in the vertical chute pipe 2.
[0021] As shown in the figure, there is a vanadium liquid inlet pipeline 8 at the lower part of the cooler 7 connected to the vanadium liquid circulation pipeline 4, and a vanadium liquid outlet pipeline 9 at the upper part of the cooler 7 connected to the horizontal chute pipe 3. A relief valve 11 is installed in the vanadium liquid outlet pipeline 9 at the upper part of the cooler 7. The circulation pump 5 sends a part of the circulating vanadium liquid into the cooler 7 to take away the heat of the cooler 7 and cool down the high-temperature material dropping point of the vertical chute pipe 2.
[0022] As shown in the figure, a plurality of reinforcing steel plates 10 are respectively installed on both sides of the middle and lower parts of the vertical chute pipe 2. The plate surface of the reinforcing steel plate 10 is L-shaped, and the inner edge of the L-shape of the reinforcing steel plate 10 is welded to the pipe wall of the vertical chute pipe 2. The reinforcing steel plate 10 can reinforce the vertical chute pipe 2.
[0023] After adopting such a structure, the cooler 7 cools down the pipe wall steel plate of the vertical chute pipe 2 at the high-temperature material dropping point, and the vanadium liquid pressurized by the circulation pump 5 enters the horizontal chute pipe 3 to cool down the horizontal chute pipe 3 and flush the material into the ball mill 6, which can effectively improve the impact resistance, erosion resistance, corrosion resistance and anti-blocking ability of the vertical chute pipe 2 and the horizontal chute pipe 3, and the reinforcing steel plate 10 can reinforce the vertical chute pipe 2.
[0024] An embodiment of the present utility model is as follows:
[0025] The length of the grate plate 1 is 1400 mm, the width is 1250 mm, the thickness is 10 mm, the aperture is 100*100 mm, and the material is stainless steel;
[0026] The height of the vertical chute pipe 2 is 5084 mm, the upper mouth length is 1100 mm, the width is 620 mm, the lower mouth length is 1500 mm, the width is 450 mm, and the steel plate material is 16Mn;
[0027] The length of the horizontal chute pipe 3 is 4000 mm, the width is 550 mm, and the height is 400 mm;
[0028] The diameter of the vanadium liquid circulation pipeline 4 is 100 mm, and the length is 11000 mm;
[0029] The model of the circulation pump 5 is ZAF100-65-315, and the flow rate of the vanadium liquid is 80-120 m³ / h;
[0030] The length of the cooler 7 is 1600 mm, the width is 1000 mm, and the thickness is 100 mm;
[0031] The diameter of the vanadium liquid inlet pipeline 8 is 40 mm;
[0032] The diameter of the vanadium liquid outlet pipeline 9 is 50 mm;
[0033] The length of the reinforcing steel plate 10 is 250 mm, the width is 250 mm, and the thickness is 100 mm;
[0034] The model of the relief valve 11 is the A48Y-25C type spring relief valve.
Claims
1. A discharging device for a vanadium extraction rotary kiln that can extend the service life, characterized in that: It includes a sieve plate (1), a vertical chute pipe (2), a horizontal chute pipe (3), a vanadium liquid circulation pipeline (4), a circulation pump (5), a cooler (7), a vanadium liquid inlet pipeline (8), and a vanadium liquid outlet pipeline (9). The sieve plate (1) is installed at the upper feeding end of the vertical chute pipe (2). The lower discharging end of the vertical chute pipe (2) is connected to the middle part of the horizontal chute pipe (3). One end of the horizontal chute pipe (3) is connected to the vanadium liquid circulation pipeline (4). The vanadium liquid circulation pipeline (4) is connected to the circulation pump (5). The discharging end of the horizontal chute pipe (3) is connected to the feeding port of a ball mill (6). A cooler (7) is installed at the upper part of the vertical chute pipe (2). There is a vanadium liquid inlet pipeline (8) at the lower part of the cooler (7) connected to the vanadium liquid circulation pipeline (4). There is a vanadium liquid outlet pipeline (9) at the upper part of the cooler (7) connected to the horizontal chute pipe (3).
2. The discharging device of the vanadium extraction rotary kiln capable of extending the service life according to claim 1, characterized in that: The size of the discharging end of the vertical chute pipe (2) is larger than that of the feeding end. A plurality of reinforcing steel plates (10) are respectively installed on both sides of the middle and lower parts of the vertical chute pipe (2). The plate surface of the reinforcing steel plate (10) is L-shaped. The inner edge of the L-shape of the reinforcing steel plate (10) is welded to the pipe wall of the vertical chute pipe (2).
3. The vanadium extraction rotary kiln discharging device capable of extending the service life according to claim 1, characterized in that: The cooler (7) is opposite to the high-temperature material falling point of the vertical chute pipe (2). A relief valve (11) is installed in the vanadium liquid outlet pipeline (9) at the upper part of the cooler (7).