A device for separating and transporting water from nickel-iron slag by air stripping

Abstract

The utility model discloses a kind of air-lift type nickel-iron slag water separation transport devices, including base, pneumatic elevator, draining rack, base top is connected with separation tank, separation tank is sequentially separated into flushing slag pool, sedimentation tank, draining pool by two groups of partition board in it, flushing slag pool is equipped with flushing slag assembly, pneumatic elevator is located in sedimentation tank, draining rack is connected in draining pool, flushing slag assembly is evenly distributed water by shunt groove in water distribution tank, it can be fully scattered with water mixing with high-pressure water flow generated by high-pressure water pump, form uniform slag water mixture, improve separation efficiency, pneumatic elevator replaces traditional grab, without manual operation in harsh environment, through pipeline closed transport slag water mixture, avoid the security risk of mechanical grabbing, reduce dust overflow simultaneously, and draining rack bottom slidable cleaning plate cooperates with sealing door, so that nickel-iron slag after draining can be cleaned quickly by machine or manually, reduce downtime, improve continuous operation capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nickel metal smelting technical field, and specifically relates to a gas extraction type nickel iron slag water separation and transportation device. BACKGROUND

[0002] In the nickel metal smelting industry, slag is an inevitable product in the smelting process. Improper handling not only leads to resource waste, but also can cause serious environmental pollution. Therefore, the smelting slag treatment of the ore smelting furnace becomes a key link to ensure the green and sustainable development of the nickel metal manufacturing industry. By implementing effective slag treatment technology, the solid and liquid parts in the slag can be separated, thereby recovering valuable metal elements and reducing the discharge of waste slag. This not only helps to reduce environmental pollution, but also reduces production costs and improves resource utilization efficiency.

[0003] The existing smelting slag treatment of the ore smelting furnace has a wide application in the metal smelting industry, and the selection of its treatment method is directly related to the effective use of resources and environmental protection. Currently, the common smelting slag treatment method is the slag settling tank method. The traditional slag settling tank method treats the smelting slag of the ore smelting furnace, that is, after the smelting slag flows into the slag ditch, a high-speed water flow is discharged from the slag flushing nozzle to flush it, forming a slag-water mixture that enters the settling tank. After a period of standing, the slag is lifted out of the settling tank to the water draining bin by a grab bucket, and then transported away by a car. This slag flushing process has the problems of large occupation of land, low efficiency of mechanical grabbing, poor environment, prominent safety hazards, and inconvenience. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a gas extraction type nickel iron slag water separation and transportation device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a gas extraction type nickel iron slag water separation and transportation device, comprising:

[0006] A base is provided at the top of which a separation tank is connected. The separation tank is divided into a slag flushing tank, a settling tank and a water draining tank by two groups of partitions in sequence. A slag flushing assembly for flushing the nickel iron slag is arranged in the slag flushing tank.

[0007] A pneumatic elevator is arranged in the settling tank and used to convey the slag-water mixture into the water draining tank.

[0008] A water draining rack is connected to the water draining tank and used to drain the slag-water mixture.

[0009] Preferably, the bottom of the pneumatic elevator is provided with a lifting pipe, the top is provided with a discharge pipe, one end of the discharge pipe is connected with an elbow pipe, and the other end of the elbow pipe extends into the water draining rack.

[0010] Preferably, the slag flushing assembly comprises a water distribution tank and a high-pressure water pump, the water distribution tank is arranged in the slag flushing tank, and the high-pressure water pump is arranged in the water distribution tank.

[0011] Preferably, a plurality of distribution grooves are arranged in the water distribution tank, and a plurality of spray heads are arranged at the bottom of the water distribution tank and one end of the spray heads is communicated with the distribution grooves.

[0012] Preferably, the water inlet end of the high-pressure water pump is communicated with an external water inlet pipeline, and the water outlet end is communicated with one group of distribution grooves through a pipeline.

[0013] Preferably, the separation tank is provided with a molten slag groove near one side of the slag flushing tank, the bottom of the separation tank is provided with a slag slurry pump, the water inlet end of the slag slurry pump is communicated with the slag flushing tank through a pipeline, and the water outlet end is communicated with the sedimentation tank through a pipeline.

[0014] Preferably, the sedimentation tank and the water draining tank are communicated through a reflux pipeline, and a one-way valve is arranged on the reflux pipeline.

[0015] Preferably, a sealing door is hingedly connected to the surface of the separation tank and located at the water draining tank, the bottom of the water draining rack is provided with a slot, and a cleaning plate is slidably inserted into the slot.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) The slag flushing assembly uniformly distributes water through the distribution grooves in the water distribution tank, and the high-pressure water flow generated by the high-pressure water pump can fully disperse the nickel-iron slag and mix it with water to form a uniform slag-water mixture, thereby improving the separation efficiency.

[0018] The reflux pipeline and the one-way valve between the sedimentation tank and the water draining tank enable the clear liquid after water draining to be circulated in the sedimentation tank, thereby reducing the consumption of new water and the operation cost.

[0019] (2) The pneumatic elevator replaces the traditional grab bucket, avoids manual operation in harsh environment, and avoids the safety hazards of mechanical grabbing, reduces dust overflow, and improves the working environment. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 2 It is a sectional view of the utility model;

[0022] Figure 3 It is a side view of the utility model cleaning plate after being drawn out from the draining frame;

[0023] Figure 4 It is a structure schematic view of the water distribution tank inside.

[0024] In the figure: 1, base; 2, separation tank; 3, partition; 4, slag flushing pool; 5, sedimentation tank; 6, draining pool; 7, pneumatic lifter; 8, draining frame; 9, lifting pipe; 10, discharge pipe; 11, elbow; 12, water distribution tank; 13, high-pressure water pump; 14, distribution groove; 15, molten slag groove; 16, slag slurry pump; 17, return pipe; 18, check valve; 19, sealing door; 20, cleaning plate; 21, slot; 22, discharge port; 23, spray head. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] The utility model provides a kind of gas stripping type nickel-iron slag water separation transport device as Figures 1-4 As shown in the figure, including:

[0027] Base 1, the top of base 1 is connected with separation tank 2, the separation tank 2 is sequentially separated into slag flushing pool 4, sedimentation tank 5 and draining pool 6 by two groups of partitions 3, and the slag flushing pool 4 is provided with a slag flushing assembly for flushing nickel-iron slag;

[0028] Pneumatic lifter 7, the pneumatic lifter 7 is arranged in the sedimentation tank 5, for conveying slag water mixture into the draining pool 6;

[0029] Draining frame 8, the draining frame 8 is connected in the draining pool 6, for draining slag water mixture.

[0030] The bottom of the pneumatic lifter 7 is provided with lifting pipe 9, the top is provided with discharge pipe 10, one end of discharge pipe 10 is connected with elbow 11, and the other end of elbow 11 extends into the draining frame 8.

[0031] The slag flushing assembly includes a water distribution tank 12 and a high-pressure water pump 13. The water distribution tank 12 is located inside the slag flushing pool 4, and the high-pressure water pump 13 is located inside the water distribution tank 12.

[0032] The water distribution tank 12 is provided with several diversion channels 14, and the bottom of the water distribution tank 12 is provided with several nozzles 23, one end of which is connected to the diversion channel 14.

[0033] The inlet of the high-pressure water pump 13 is connected to an external water inlet pipe, and the outlet is connected to one of the diversion channels 14 through a pipe.

[0034] The separation box 2 is provided with a slag trough 15 on one side near the slag flushing pool 4. The slag trough 15 is an inclined trough that uses gravity to guide the high-temperature molten slag to flow by gravity. The bottom of the separation box 2 is provided with a slurry pump 16, and the water inlet of the slurry pump 16 is connected to the slag flushing pool 4 through a pipe, and the water outlet is connected to the sedimentation tank 5 through a pipe.

[0035] The sedimentation tank 5 and the drainage tank 6 are connected by a return pipe 17, and a one-way valve 18 is provided on the return pipe 17. A water pump is installed in the return pipe 17. When the water pump is started, the water pump can draw water from the bottom of the drainage tank 6. The water is transported to the sedimentation tank 5 through the return pipe 17. The fine particles in the water can settle again, and the clear water is used for the next round of sedimentation. When the water pump stops, the one-way valve 18 closes to prevent the sludge and water in the sedimentation tank 5 from flowing back into the drainage tank 6.

[0036] The separation box 2 is hinged to a sealing door 19 on its surface and at the drain pool 6. The drain rack 8 has a slot 21 at its bottom and a cleaning plate 20 is slidably inserted into the slot 21. A rubber sealing ring is provided at the closure of the sealing door 19 and the drain pool 6 to prevent the drained liquid from leaking out from the sealing door 19.

[0037] In this air-lift nickel-iron slag water separation and transportation device, the high-temperature molten slag produced by smelting flows into the slag flushing pool 4 through the slag ditch 15, and is initially cooled by contact with the water in the slag flushing pool 4. The high-pressure water pump 13 is started by the external controller, and the high-pressure water pump 13 draws water from the external water inlet pipe and transports it through the pipe to the diversion channel 14 in the water distribution tank 12. After the water is evenly distributed by the diversion channel 14, it is sprayed out in a columnar shape from the nozzle 23 at the bottom of the water distribution tank 12, forming a high-speed water flow that washes and cools the nickel-iron slag and breaks it into fine particles, which are then mixed with water to form a slag-water mixture.

[0038] Then, the slurry pump 16 can be started by an external controller. The slag-water mixture in the slag flushing tank 4 is extracted by the slurry pump 16 and transported to the sedimentation tank 5 through the pipeline. After the mixture in the sedimentation tank 5 is allowed to settle, the nickel-iron slag particles (high density) settle to the bottom of the tank. Then, the pneumatic elevator 7 can be started by an external controller. The pneumatic elevator 7 is based on the principle of air lifting liquid, also known as the air lifting principle. Compressed air is introduced into the lifting pipe 9 at the bottom of the pneumatic elevator 7 through an external air source such as an air compressor. The air expands in the lifting pipe 9 and forms a large number of bubbles, which are fully mixed with the suspension in the sedimentation tank 5 to form a gas-liquid-solid three-phase flow. The mixed flow formed rises along the lifting pipe 9 under the action of buoyancy. After reaching the top of the pneumatic elevator 7, it is transported at an angle to the top of the drain rack 8 in the draining tank 6 through the discharge pipe 10 and the bend pipe 11. The mixture falls from the outlet of the bend pipe 11, realizing cross-regional transportation from the sedimentation tank 5 to the draining tank 6.

[0039] After the slag-water mixture falls onto the drain rack 8, the water flows into the bottom of the drain pool 6 through the holes because the rack 8 is made of metal mesh or perforated plate. The nickel-iron slag remains in the drain rack 8, completing the final solid-liquid separation. The water after solid-liquid separation flows from the bottom of the drain pool 6 into the sedimentation tank 5 through the return pipe 17 under the action of the one-way valve 18, participating in the next round of sedimentation process, thus avoiding water waste.

[0040] After the nickel-iron slag is drained, the sealing door 19 can be opened manually, and then the cleaning plate 20 can be pulled manually to slide out from the slot 21 at the bottom of the drain rack 8. The slag can then be discharged from the discharge port 22 at the bottom of the drain rack 8 and transported away by belt conveyor or truck, which greatly improves the speed of manual cleaning.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas-lift type nickel-iron slag water separation and transportation device, characterized in that, include: The base (1) is connected to a separation box (2) at the top. The separation box (2) is divided into a slag flushing pool (4), a sedimentation pool (5), and a drainage pool (6) by two sets of partitions (3). The slag flushing pool (4) is equipped with a slag flushing component for flushing nickel-iron slag. The slag flushing assembly includes a water distribution tank (12) and a high-pressure water pump (13). The water distribution tank (12) is located inside the slag flushing pool (4), and the high-pressure water pump (13) is located inside the water distribution tank (12). The water distribution tank (12) is provided with several diversion channels (14), and the bottom of the water distribution tank (12) is provided with several nozzles (23), one end of the nozzles (23) being connected to the diversion channels (14); The inlet of the high-pressure water pump (13) is connected to an external water inlet pipe, and the outlet is connected to one of the group flow channels (14) through a pipe. Pneumatic elevator (7), which is located in sedimentation tank (5) and is used to transport the sludge-water mixture into dewatering tank (6); The drain rack (8) is connected to the drain tank (6) and is used to drain the mixture of sludge and water.

2. The air-lift type nickel-iron slag water separation and transportation device according to claim 1, characterized in that: The pneumatic elevator (7) has a lifting pipe (9) at the bottom and a discharge pipe (10) at the top. One end of the discharge pipe (10) is connected to a bend (11), and the other end of the bend (11) extends into the drain rack (8).

3. The air-lift type nickel-iron slag water separation and transportation device according to claim 1, characterized in that: The separation box (2) is provided with a slag trough (15) on one side near the slag flushing pool (4). The bottom of the separation box (2) is provided with a slurry pump (16), and the inlet end of the slurry pump (16) is connected to the slag flushing pool (4) through a pipe, and the outlet end is connected to the sedimentation tank (5) through a pipe.

4. The air-lift type nickel-iron slag water separation and transportation device according to claim 1, characterized in that: The sedimentation tank (5) and the drainage tank (6) are connected by a return pipe (17) and a one-way valve (18) is provided on the return pipe (17).

5. The air-lift type nickel-iron slag water separation and transportation device according to claim 1, characterized in that: The separation box (2) has a sealing door (19) hinged to the surface of the separation box (2) and located at the drain pool (6). The drain rack (8) has a slot (21) at the bottom and a cleaning plate (20) is slidably inserted into the slot (21).

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