Slurry guarantee device based on long-distance conveying

Abstract

The utility model belongs to the technical field of vanadium pentoxide production, and discloses a slurry guarantee device based on long-distance conveying, which comprises a slurry tank and a cyclone, the slurry tank is provided with a liquid inlet pipe, a slurry outlet pipe and a feed port, the liquid inlet pipe is connected with a liquid supply device, and the feed device is connected with the feed port; an inlet of the cyclone is connected with a slurry outlet pipe through a first slurry pump; a liquid outlet of the cyclone is connected with one end of the water return pipe, and the other end of the water return pipe is connected with the slurry tank and / or the feeding device; and a discharge port of the cyclone is connected with an external filter through a discharge pipe. A to-be-conveyed material discharged from a feeding device is fed into a slurry tank, liquid is injected through a liquid inlet pipe for dilution, long-distance conveying is performed through a slurry outlet pipe and a first slurry pump, solid and liquid are partially separated through a cyclone, and part of a solid-liquid mixture is filtered before the next step; and part of the slurry is conveyed into the slurry tank and / or the feeding device by the water return pipe for cyclic utilization, so that the problem of blockage caused in a long-distance conveying process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vanadium pentoxide production, in particular to a slurry guarantee device based on long-distance transportation. Background Art

[0002] The production process of vanadium pentoxide can be produced by the indirect vanadium extraction method using vanadium slag as raw material. After the vanadium slag is finely ground and iron is selected, sodium salt additives are added in proportion, and oxidative roasting is carried out in a rotary kiln to convert insoluble vanadium compounds into soluble sodium vanadate, which is then leached in water to form a sodium vanadate solution. After the solution is purified and phosphorus is removed, sulfuric acid and ammonium sulfate are added to precipitate ammonium salts under heating conditions to produce ammonium polyvanadate, which is then decomposed, melted, and cast into flakes to obtain vanadium pentoxide.

[0003] On the premise of unchanged production capacity, the utilization rate of additives can be improved and the consumption of auxiliary materials can be reduced by increasing the number of rotary kilns, reasonably matching the process parameters such as the feeding amount of the mixture and the kiln speed, and optimizing the roasting process. After the mixture is roasted in the added rotary kiln, it is pulped and sent to the existing leaching process for subsequent treatment, which results in a long slurry transportation distance and easy blockage. Utility Model Content

[0004] The utility model aims to provide a slurry protection device based on long-distance transportation, which can avoid clogging of the transportation pipeline on the basis of long-distance transportation of slurry.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Based on long distance slurry transport guarantee device, including:

[0007] A slurry tank, the slurry tank having a liquid inlet pipe, a slurry outlet pipe and a feed port, the liquid inlet pipe is connected to a liquid supply device, and the feed port is connected to a feeding device;

[0008] A cyclone, wherein the inlet of the cyclone is connected to the slurry discharge pipe through a first slurry pump; the liquid outlet of the cyclone is connected to one end of a return pipe, and the other end of the return pipe is connected to the slurry tank and / or the feeding device; the discharge port of the cyclone is connected to an external filter through a discharge pipe.

[0009] Preferably, flow control valves are provided on the liquid inlet pipe and the discharge pipe.

[0010] Preferably, the water return pipe is connected to the slurry tank.

[0011] Preferably, the connection heights of the liquid inlet pipe and the water return pipe to the slurry tank are higher than the connection height of the slurry outlet pipe to the slurry tank.

[0012] Preferably, a stirring driving member is further provided, wherein the output end of the stirring driving member is connected to a stirring shaft, the stirring shaft is arranged in the slurry tank, and a stirring blade is arranged on the stirring shaft.

[0013] Preferably, a spare pipe is further provided, one end of which is connected to the slurry outlet pipe or the slurry tank, and the other end of which is connected to the cyclone. A second slurry pump is provided on the spare pipe.

[0014] Preferably, it further comprises a filter plate, which is detachably arranged at the feed port, and the outlet of the feeding device is arranged above the filter plate.

[0015] Preferably, the notch of the slurry tank is provided with relative slideways, the opposite ends of the filter plate are slidably connected to the slideways, and the filter plate is provided with a pushing handle.

[0016] Preferably, it further comprises a liquid level monitoring component, which monitors the liquid level height in the slurry tank.

[0017] Preferably, a shunt pipe is provided on the return pipe, the shunt pipe is connected to the return pipe via a reversing valve, a switch valve is provided on the shunt pipe, and one end of the shunt pipe away from the return pipe is connected to a material preparation barrel.

[0018] Beneficial effects of the utility model:

[0019] The material to be transported from the feeding device is thrown into the slurry tank, and liquid is injected for dilution through the liquid inlet pipe. It is transported over a long distance through the slurry outlet pipe and the first slurry pump to the cyclone close to the external filter. The solid and liquid are partially separated by the cyclone, and part of the solid-liquid mixture enters the external filter for filtration before the next step, while the separated part of the slurry is transported to the slurry tank and / or the feeding device by the return pipe for recycling, thereby avoiding the blockage problem caused by long-distance transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the utility model based on the long-distance slurry conveying guarantee device;

[0021] Figure 2 It is a schematic diagram of the slurry tank in the utility model.

[0022] In the figure:

[0023] 1. Slurry tank; 2. Cyclone; 3. Liquid inlet pipe; 4. Slurry outlet pipe; 5. Feeding device; 6. Return pipe; 7. Discharge pipe; 8. Flow control valve; 9. Agitator shaft; 10. Diverter pipe; 11. Switch valve; 12. Preparation barrel; 13. Spare pipe; 14. First slurry pump; 15. Second slurry pump; 16. Filter plate; 17. Discharge port; 18. Guide channel; 19. Liquid level monitoring component; 20. Monitoring hole. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do 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 a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] like Figure 1 and Figure 2As shown, the utility model provides a slurry guarantee device based on long-distance transportation to connect the rotary kiln and the subsequent leaching process to transport the slurry, so as to avoid the problem of blockage in the transportation process based on the long distance. It can be understood that the long-distance transportation slurry guarantee device is not limited to the manufacturing process of vanadium pentoxide, and other long-distance transportation can also be used. The manufacturing process of vanadium pentoxide is used as an example for introduction. The slurry guarantee device based on long-distance transportation includes a slurry tank 1 and a cyclone 2. The slurry tank 1 has a liquid inlet pipe 3, a slurry outlet pipe 4 and a feed port. The liquid inlet pipe 3 is connected to the liquid supply device, and the feeding device 5 is connected to the feed port; the inlet of the cyclone 2 is connected to the slurry outlet pipe 4 through the first slurry pump 14; the liquid outlet of the cyclone 2 is connected to one end of the return pipe 6, and the other end of the return pipe 6 is connected to the slurry tank 1 and / or the feeding device 5; the discharge port of the cyclone 2 is connected to the external filter through the discharge pipe 7.

[0029] Through the above-mentioned slurry tank 1 and cyclone 2, the material to be transported from the feeding device 5 can be put into the slurry tank 1, diluted by injecting liquid through the liquid inlet pipe 3, and transported over a long distance through the slurry outlet pipe 4 and the first slurry pump 14 to the cyclone 2 close to the external filter. The solid and liquid are partially separated by the cyclone 2, and part of the solid-liquid mixture enters the external filter for filtration before the next step, and the separated part of the slurry is transported to the slurry tank 1 and / or the feeding device 5 by the return pipe 6 for recycling, thereby avoiding the blockage problem caused by long-distance transportation.

[0030] In some embodiments, during the production of vanadium pentoxide, the external filter is a belt vacuum filter, and the feeding device 5 is a wet ball mill connected to a rotary kiln.

[0031] In some embodiments, both the liquid inlet pipe 3 and the discharge pipe 7 are provided with a flow control valve 8. The flow control valve 8 on the liquid inlet pipe 3 can control the flow rate and speed of the liquid inlet, thereby controlling the concentration of the slurry in the slurry tank 1; and the flow control valve 8 on the discharge pipe 7 can control the solid-liquid mixture entering the external filter; illustratively, the flow control valve 8 can be, but is not limited to, a solenoid valve. The liquid-solid ratio in the slurry tank 1 can be controlled according to the different transported materials. For example, in the production process of vanadium pentoxide, the liquid-solid ratio in the slurry tank 1 is between 2.0 and 5.0.

[0032] In some embodiments, it is preferred to directly connect the return pipe 6 to the slurry tank 1 to prevent the return water from entering the wet ball mill, increase the burden on the equipment, reduce the probability of damage, and avoid the resulting maintenance. In the current embodiment, the connection height of the liquid inlet pipe 3 and the return pipe 6 on the slurry tank 1 is higher than the connection height of the slurry outlet pipe 4 on the slurry tank 1, so that sufficient mixing can be performed. Furthermore, in order to further increase the degree of mixing, the long-distance slurry transportation guarantee device also includes a stirring drive, the output end of the stirring drive extends into the slurry tank 1, and the output end of the stirring drive is connected to a stirring shaft 9, and a stirring blade is provided on the stirring shaft 9 to increase the stirring force. Exemplarily, the stirring drive can be, but is not limited to, a motor or the like.

[0033] In some embodiments, a shunt pipe 10 is provided on the return pipe 6, and the shunt pipe 10 is connected to the return pipe 6 through a reversing valve, and a switch valve 11 is provided on the shunt pipe 10. One end of the shunt pipe 10 away from the return pipe 6 is connected to a stock preparation barrel 12. With the above structure, when an emergency occurs and the slurry separated by the cyclone 2 cannot be injected into the slurry tank 1, for example, the slurry tank 1 needs to be shut down urgently; based on this state, in order not to force the cyclone 2 to pause, in this process, the flow direction of the slurry can be changed by the reversing valve, and the switch valve 11 is opened to allow the slurry to enter the stock preparation barrel 12. When the slurry tank 1 can continue to be injected, the switch valve 11 can be closed, and the flow direction of the slurry can be changed again by the reversing valve.

[0034] With the same backup principle as above, a backup pipe 13 is also provided on the slurry outlet pipe 4, one end of which can be connected to the slurry outlet pipe 4 or to the slurry tank 1; for the convenience of connection, in this embodiment, the backup pipe 13 is connected to the slurry outlet pipe 4 through a three-way valve, and the other end of the backup pipe 13 is connected to the inlet of the cyclone 2, so that both ends of the backup pipe 13 cross the first slurry pump 14, and a second slurry pump 15 is provided on the backup pipe 13, so that when the first slurry pump 14 needs to be repaired, the slurry in the slurry tank 1 can enter the cyclone 2 through the backup pipe 13 and the second slurry pump 15.

[0035] like Figure 2As shown, in some embodiments, the feed port is detachably provided with a filter plate 16; specifically, the notch of the slurry tank 1 is provided with a relative slideway, and the opposite ends of the filter plate 16 are slidably connected to the slideway, and in order to facilitate the application of force, a push handle is provided on the filter plate 16. In this embodiment, the filter plate 16 can be, but is not limited to, a grate plate, and the gap size of the grate plate can be customized according to the size to be filtered, so that larger particles can be screened. The outlet of the feeding device 5 is located above the filter plate 16 and can fall directly onto the filter plate 16. Further, in order to facilitate the removal of debris on the filter plate 16, a debris outlet 17 is provided on the tank wall of the slurry tank 1, and the debris outlet 17 is the same height as the filter plate 16, and the filter plate 16 can be directly discharged through the debris outlet 17 using a tool. Furthermore, in order to avoid the scattering of debris, the debris outlet 17 is connected to a guide channel 18, so that the debris can be accumulated at a designated position.

[0036] like Figure 1 and Figure 2 As shown, in some embodiments, the long-distance slurry transportation guarantee device also includes a liquid level monitoring component 19. The liquid level monitoring component 19 can be arranged inside or outside the slurry tank 1. When arranged outside the slurry tank 1, the liquid level monitoring component 19 is located at the upper part of the slurry tank 1. The slurry tank 1 is provided with a monitoring hole 20 for the liquid level monitoring component 19 to monitor, so that the liquid level in the slurry tank 1 can be monitored, so that the liquid level in the slurry tank 1 is maintained within a reasonable range, on the one hand to avoid the risk of escaping, on the other hand to avoid the liquid level being too low, affecting the use effect of the cyclone 2; when the liquid level monitoring component 19 is arranged outside, any monitoring component that can monitor the distance can be used, and the specific form is not limited; illustratively, an infrared monitoring component can be selected.

[0037] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Based on the long-distance slurry transportation guarantee device, It is characterized in that include: A slurry tank (1), the slurry tank (1) comprising a liquid inlet pipe (3), a slurry outlet pipe (4) and a feed port, the liquid inlet pipe (3) being connected to a liquid supply device, and the feed port being connected to a feeding device (5); A cyclone (2), wherein the inlet of the cyclone (2) is connected to the slurry discharge pipe (4) via a first slurry pump (14); the liquid outlet of the cyclone (2) is connected to one end of a return pipe (6), and the other end of the return pipe (6) is connected to the slurry tank (1) and / or the feeding device (5); the discharge port of the cyclone (2) is connected to an external filter via a discharge pipe (7).

2. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that The liquid inlet pipe (3) and the material outlet pipe (7) are provided with flow control valves (8).

3. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that The water return pipe (6) is connected to the slurry tank (1).

4. The slurry guarantee device based on long-distance transportation according to claim 3, It is characterized in that The connection heights of the liquid inlet pipe (3) and the water return pipe (6) on the slurry tank (1) are higher than the connection height of the slurry outlet pipe (4) on the slurry tank (1).

5. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that A stirring drive member is also provided, the output end of the stirring drive member is connected to a stirring shaft (9), the stirring shaft (9) is arranged in the slurry tank (1), and a stirring blade is arranged on the stirring shaft (9).

6. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that A spare pipe (13) is also provided, one end of the spare pipe (13) is connected to the slurry outlet pipe (4) or the slurry tank (1), the other end of the spare pipe (13) is connected to the cyclone (2), and a second slurry pump (15) is provided on the spare pipe (13).

7. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that It also comprises a filter plate (16), wherein the filter plate (16) is detachably arranged at the feed port, and the outlet of the feeding device (5) is arranged above the filter plate (16).

8. The slurry guarantee device based on long-distance transportation according to claim 7, It is characterized in that The notch of the slurry tank (1) is provided with relative slideways, the opposite ends of the filter plate (16) are slidably connected to the slideways, and the filter plate (16) is provided with a pushing handle.

9. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that It also includes a liquid level monitoring component (19), and the liquid level monitoring component (19) monitors the liquid level height in the slurry tank (1).

10. The slurry guarantee device based on long-distance transportation according to claim 1, It is characterized in that The return pipe (6) is provided with a shunt pipe (10), the shunt pipe (10) is connected to the return pipe (6) via a reversing valve, the shunt pipe (10) is provided with a switch valve (11), and one end of the shunt pipe (10) away from the return pipe (6) is connected to a material preparation bucket (12).

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