Slag remediation apparatus

Abstract

The utility model discloses a kind of mineral slag repair equipment, it is related to mineral slag repair technical field, and wherein, mineral slag repair equipment includes mixed reaction subassembly, screening machine, crusher, dosing subassembly and detection component.Mixed reaction subassembly has mixed reaction cavity.Screening machine is used to screen mineral slag, screening machine has coarse material port and fine material port, and the fine material port of screening machine is connected mixed reaction cavity.The feed inlet of crusher is connected with the coarse material port of screening machine, and the discharge port of crusher is connected with mixed reaction cavity.Dosing subassembly is used to dose mineral slag in mixed reaction cavity.Detection component detects mineral slag powder in mixed reaction cavity, dosing subassembly can add medicine to mineral slag powder in mixed reaction cavity according to the detection data of detection component, and mixed reaction subassembly is used to mix medicine and mineral slag powder in mixed reaction cavity, realizes the automation of dosing and mineral slag feeding, and overallly improves the improvement repair efficiency of mineral slag.

Description

Technical Field

[0001] This utility model relates to the field of slag repair technology, and in particular to a slag repair device. Background Technology

[0002] In the prevention and control of heavy metal pollution, the mining and beneficiation of heavy non-ferrous metal mines (including associated mines) is a key industry for prevention and control. The tailings accumulated in the reservoir are characterized by being ultrafine, infertile, and easily acidified. At the same time, the geological conditions dominated by karst landforms increase the multi-dimensional and multi-media migration and transformation of heavy metals, thereby polluting the reservoir area and surrounding soil, surface water, and groundwater.

[0003] When treating tailings slag, it is often improved to be reused as soil. The specific improvement method is to screen and crush the tailings slag to form slag powder, and then add acid and alkali agents to restore the pH of the slag powder to reach the preset acid-base range. Then, soil conditioner is added to make it meet the planting requirements. At present, most of the commonly used tailings improvement equipment still uses equipment from the mining industry, which has the problem of low automation and low efficiency of tailings improvement and restoration. Utility Model Content

[0004] The main purpose of this invention is to propose a slag repair device, which aims to improve the efficiency of slag improvement and repair.

[0005] To achieve the above objectives, the slag remediation equipment proposed in this utility model includes: A mixing reaction assembly with a mixing reaction chamber; A screening machine is used to screen slag. The screening machine has a coarse material inlet and a fine material inlet, and the fine material inlet of the screening machine is connected to the mixing reaction chamber. The crusher has its feed inlet connected to the coarse material outlet of the screening machine, and its discharge outlet connected to the mixing reaction chamber. A dosing assembly for adding chemicals to the slag within the mixing reaction chamber; and, A detection component is used to detect the slag inside the mixing reaction chamber.

[0006] In one embodiment, the dosing assembly includes an acid-base dosing assembly, and the detection assembly includes an acid probe for detecting the acidity of the slag in the mixing reaction chamber.

[0007] In one embodiment, the acid-base dosing assembly includes an acid reagent tank, an alkaline reagent tank, and a first spray component. The first spray component is disposed within the mixing reaction chamber and is connected to the acid reagent tank and the alkaline reagent tank.

[0008] In one embodiment, the first spraying component includes a first spray head and a second spray head, the first spray head being connected to the acidic agent tank and the second spray head being connected to the alkaline agent tank.

[0009] In one embodiment, the dosing assembly includes a modified dosing assembly, and the detection assembly includes a soil characteristic probe. The soil characteristic probe is used to detect the soil characteristic parameter values ​​of the slag in the mixing reaction chamber, and the soil characteristic probe corresponds to the modified dosing setting.

[0010] In one embodiment, the improved dosing assembly includes a second spray assembly and a plurality of improved reagent tanks, all of which are connected to the second spray assembly, which is located inside the mixing reaction chamber.

[0011] In one embodiment, the slag remediation equipment further includes a water-mixing detection tank, and a sampling device is connected between the water-mixing detection tank and the mixing reaction chamber. The detection component includes an acid probe and a soil characteristic probe, and the soil characteristic probe is located inside the water-mixing detection tank.

[0012] In one embodiment, the sampling device includes a screw conveyor, the inlet of which is connected to the mixing reaction chamber, and the outlet of which is connected to the water-mixing detection tank.

[0013] In one embodiment, the slag remediation equipment further includes a waste tank, a first discharge valve is connected between the discharge port of the screw conveyor and the waste tank, and a second discharge valve is connected between the discharge port of the screw conveyor and the water-mixed detection tank.

[0014] In one embodiment, the water mixing detection tank is equipped with a stirring assembly, the water mixing detection tank is connected to a water injection assembly, and the water mixing detection tank has a drain valve.

[0015] In this invention, the screening machine screens the slag, and feeds the smaller slag particles into the mixing reaction chamber through the fine feed inlet. The screening machine feeds the larger slag particles into the crusher through the discharge outlet for crushing. The crusher breaks the larger slag particles into smaller particles that meet size requirements, and then feeds the crushed slag into the mixing reaction chamber. Using the detection component, the slag powder in the mixing reaction chamber can be detected. The dosing component adds chemicals to the slag powder in the mixing reaction chamber based on the detection data, and the mixing reaction component mixes the chemicals and slag powder in the mixing reaction chamber to achieve slag improvement. This automates the chemical dosing and slag feeding processes, improving the overall efficiency of slag improvement and remediation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the slag repair equipment provided by this utility model; Figure 2 A schematic diagram of another embodiment of the slag repair equipment provided by this utility model; Figure 3 for Figure 2 A schematic diagram of the structure of the mixed water testing tank.

[0018] Explanation of icon numbers: 1. Mixing reaction assembly; 11. Mixing reaction chamber; 2. Screening machine; 3. Crusher; 4. Dosing assembly; 41. Acidic reagent tank; 42. Alkaline reagent tank; 43. Modifying reagent tank; 5. Detection assembly; 51. Acidic probe; 52. Soil characteristic probe; 6. Water-mixing detection tank; 7. Sampling device; 71. First discharge valve; 72. Second discharge valve; 8. Waste tank; 9. Mixing assembly; 91. Mixing motor; 92. Mixing blades; 10. Water injection assembly.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] In the prevention and control of heavy metal pollution, the mining and beneficiation of heavy non-ferrous metal mines (including associated mines) is a key industry for prevention and control. The tailings accumulated in the reservoir are characterized by being ultrafine, infertile, and easily acidified. At the same time, the geological conditions dominated by karst landforms increase the multi-dimensional and multi-media migration and transformation of heavy metals, thereby polluting the reservoir area and surrounding soil, surface water, and groundwater.

[0024] When treating tailings slag, it is often improved to be reused as soil. The specific improvement method is to screen and crush the tailings slag to form slag powder, and then add acid and alkali agents to restore the pH of the slag powder to reach the preset acid-base range. Then, soil conditioner is added to make it meet the planting requirements. At present, most of the commonly used tailings improvement equipment still uses equipment from the mining industry, which has the problem of low automation and low efficiency of tailings improvement and restoration.

[0025] This utility model proposes a slag repair device.

[0026] Please see Figure 1 In one embodiment of this utility model, the slag remediation equipment includes a mixing reaction component 1, a screening machine 2, a crusher 3, a dosing component 4, and a detection component 5. The mixing reaction component 1 has a mixing reaction chamber 11. The screening machine 2 is used to screen the slag, and has a coarse material inlet and a fine material inlet; the fine material inlet of the screening machine 2 is connected to the mixing reaction chamber 11. The feed inlet of the crusher 3 is connected to the coarse material inlet of the screening machine 2, and the discharge outlet of the crusher 3 is connected to the mixing reaction chamber 11. The dosing component 4 is used to add chemicals to the slag in the mixing reaction chamber 11. The detection component 5 is used to detect the slag in the mixing reaction chamber 11.

[0027] In this invention, the screening machine 2 screens the slag and feeds the smaller slag particles into the mixing reaction chamber 11 through the fine material inlet. The screening machine 2 feeds the larger slag particles into the crusher 3 through the discharge outlet for crushing. The crusher 3 crushes the larger slag particles into smaller particles that meet size requirements and feeds the crushed slag into the mixing reaction chamber 11. The detection component 5 can detect the slag powder in the mixing reaction chamber 11. The dosing component 4 can add chemicals to the slag powder in the mixing reaction chamber 11 based on the detection data from the detection component 5. The mixing reaction component 1 mixes the chemicals and slag powder in the mixing reaction chamber 11 to achieve slag improvement. This automates the dosing and slag feeding processes, improving the overall efficiency of slag improvement and remediation.

[0028] The mixing reaction chamber 11 can be any cavity used to contain slag. Specifically, the mixing reaction assembly 1 includes a mixing reaction tank, which is a metal tank, and the mixing reaction chamber 11 is formed inside the mixing reaction tank. The mixing reaction tank can be made of acid and alkali resistant material, and an acid and alkali resistant coating can also be provided inside the mixing reaction tank to reduce the corrosion of the mixing reaction tank by the reagents and slag.

[0029] The mixing reaction assembly 1 further includes a mixing motor and mixing blades. The mixing blades are mounted on the rotating shaft of the mixing motor and are disposed within the mixing reaction chamber 11. During the dosing process of the dosing assembly 4 in adding chemicals to the slag, or after the dosing process of the dosing assembly 4 in adding chemicals to the slag, the mixing motor is activated, which enables the mixing blades to stir the slag within the mixing reaction chamber 11, thereby accelerating the mixing and reaction of the slag and chemicals within the mixing reaction chamber 11.

[0030] The screening machine 2 can be selected according to the particle size of the slag. The screening machine 2 can be any one or a combination of roller screen, vibrating screen and drum screen. The screening machine 2 can be selected according to the screening load of the slag. Specifically, the screening speed of the screening machine 2 can be adjusted between 1t / h and 300t / h (tons per hour).

[0031] The crusher 3 can be selected according to the physical and chemical properties of the slag. The crusher 3 can be one or more of the following: jaw crusher 3, cone crusher 3, and hammer crusher 3. The crushing speed of the crusher 3 can be adjusted between 1t / h and 300t / h (tons per hour).

[0032] When remediating slag for use as soil, the acidity of the slag is required. The dosing assembly 4 includes an acid-base dosing component 4, and the detection assembly 5 includes an acid probe 51. The acid probe 51 is used to detect the acidity value of the slag within the mixing reaction chamber 11. By detecting the acidity of the slag within the mixing reaction chamber 11 using the acid probe 51, the difference between the current acidity and the target acidity of the slag can be determined, and the type and amount of reagent to be added to the slag can be calculated. The acid-base dosing assembly 4 automatically adds reagents to the slag within the mixing reaction chamber 11. Specifically, when the acidity of the slag is higher than the target range, the acid-base dosing assembly 4 adds an alkaline reagent to the slag; when the acidity of the slag is lower than the target range, the acid-base dosing assembly 4 adds an acidic reagent to the slag.

[0033] Please see Figure 1 The acid-base dosing assembly 4 includes an acid reagent tank 41, an alkaline reagent tank 42, and a first spray component. The first spray nozzle is disposed within the mixing reaction chamber 11, and the first spray component connects the acid reagent tank 41 and the alkaline reagent tank 42. The first spray component can add the acid and alkaline reagents to the slag via spraying, facilitating the mixing of the acid and alkaline reagents.

[0034] The volumes of the acidic reagent tank 41 and the alkaline reagent tank 42 can be between 10 liters and 10 cubic meters. Specifically, the volumes of the acidic reagent tank 41 and the alkaline reagent tank 42 can be set as needed. The acidic reagent can be an organic acid or an inorganic acid. Specifically, the type and concentration of the acidic reagent can be set as needed. The type and concentration of the alkaline reagent can be set as needed.

[0035] The first spraying component includes a first spray head and a second spray head. The first spray head is connected to the acidic reagent tank 41, and the second spray head is connected to the alkaline reagent tank 42. This avoids the reaction between the acidic and alkaline reagents, thereby improving the accuracy of their addition. A pipe and a pressure pump connect the acidic reagent tank 41 and the first spray head. Multiple first spray heads are spaced apart within the mixing reaction chamber 11 to uniformly apply the acidic reagent to the slag. Similarly, a pipe and a pressure pump connect the alkaline reagent tank 42 and the second spray head. Multiple second spray heads are spaced apart within the mixing reaction chamber 11 to uniformly apply the alkaline reagent to the slag.

[0036] To detect the acidity of the slag in the reaction chamber, the acid probe 51 can be a pH detection probe. When the acid probe 51 is directly inserted into the slag to detect its acidity, the pH detection probe can be a flat-headed pH electrode. A wetting nozzle is provided in the mixing reaction chamber 11, corresponding to the acid probe 51, to spray water to wet the slag around the acid probe 51 before detection, thus ensuring the acid probe 51 can detect the acidity of the slag.

[0037] When using slag as soil, it is also necessary to remediate the slag according to the soil characteristics. The dosing component 4 includes an improvement dosing component 4, and the detection component 5 includes a soil characteristic probe 52. The soil characteristic probe 52 is used to detect the soil characteristic parameter values ​​of the slag in the mixing reaction chamber 11, and the soil characteristic probe 52 corresponds to the improvement dosing setting.

[0038] After the soil properties of the slag are detected by the soil property probe 52, the type and amount of chemicals to be added by the improved dosing component 4 can be determined, so that the improved dosing component 4 can automatically add chemicals to improve the slag.

[0039] The modified dosing assembly 4 includes a second spray assembly and multiple modified agent tanks 43, all of which are connected to the second spray assembly, which is located within the mixing reaction chamber 11. The multiple modified agent tanks 43 can each hold different modified agents, and the second spray assembly can select the appropriate modified agent as needed, allowing the multiple modified agent tanks 43 to share the same second spray assembly.

[0040] The second spray assembly includes multiple spaced nozzles, and a pressure pump is provided between the second spray assembly and the soil conditioner tank 43. The soil characteristic probe 52 can detect any soil characteristic such as the organic matter content and heavy metal content of the slag. Multiple soil characteristic probes 52 can be used to detect the organic matter content and heavy metal content of the slag separately; alternatively, a single soil characteristic probe 52 can be used to simultaneously detect both the organic matter content and heavy metal content of the slag. The soil conditioner can be any soil conditioner, such as an organic matter agent or a heavy metal solidification agent. When the organic matter content in the slag is insufficient, the second spray assembly can deliver the organic matter agent to the slag; when the heavy metal content in the slag is high, the second spray assembly can deliver the heavy metal solidification agent to the slag, allowing the heavy metal solidification agent to bind and solidify with the heavy metals.

[0041] When the soil characteristic probe 52 is directly inserted into the slag, in order to ensure the accuracy of the detection by the soil characteristic probe 52, a wetting nozzle is also provided in the mixing reaction chamber 11 corresponding to the soil characteristic probe 52. The wetting nozzle can wet the slag around the soil characteristic probe 52 to improve the detection accuracy of the soil characteristic probe 52.

[0042] During the improvement process of slag, the acidic probe 51 and the soil characteristic probe 52 can periodically detect the slag and detect its parameters in a timely manner.

[0043] Please see Figure 2 and Figure 3 In order to improve the detection accuracy of the acid probe 51 and the soil characteristic probe 52, the slag remediation equipment also includes a water-mixing detection tank 6. A sampling element 7 is connected between the water-mixing detection tank 6 and the mixing reaction chamber 11. The detection component 5 includes an acid probe 51 and a soil characteristic probe 52, and the soil characteristic probe 52 is located inside the water-mixing detection tank 6.

[0044] The sampling device 7 can be used to sample the slag in the mixing reaction chamber 11, and the slag can be mixed with water in the water-mixing detection tank 6 to form a suspension. The acid probe 51 and the soil characteristic probe 52 can be inserted into the suspension in the water-mixing detection tank 6 to improve the detection accuracy of the acid probe 51 and the soil characteristic probe 52.

[0045] The sampler is used to quantitatively select slag from the mixing reaction chamber 11 and send the selected slag into the water mixing detection tank 6 to mix a fixed amount of water and slag, so as to quantitatively detect the acidity of the slag. The sampler can be any feasible quantitative conveying device such as a rotary valve (star feeder) and a screw conveyor.

[0046] When the current test is completed in the water-mixing test tank 6 and the next test is required, the water-mixing test tank 6 is equipped with a stirring assembly 9, a water injection assembly 10, and a drain valve. By opening the drain valve, the water injection assembly 10 is controlled to inject water into the water-mixing test tank 6, thereby flushing and cleaning the water-mixing test tank 6. The water injection assembly 10 can inject a metered amount of water into the water-mixing test tank 6 to mix the slag and water within it.

[0047] The water mixing detection tank 6 may also be equipped with a stirring assembly 9, which includes a stirring motor 91 and a stirring blade 92. The stirring blade 92 is located inside the water mixing detection tank 6 and is connected to the rotor drive of the stirring motor 91. When the stirring motor 91 is started, the stirring blade 92 can accelerate the mixing of slag and water in the water mixing detection tank 6.

[0048] The sampling unit 7 includes a screw conveyor. The inlet of the screw conveyor is connected to the mixing reaction chamber 11, and the outlet of the screw conveyor is connected to the water-mixing detection tank 6. By activating the screw conveyor, slag in the mixing detection tank can be quantitatively fed into the water-mixing detection tank 6.

[0049] The slag remediation equipment also includes a waste tank 8. A first discharge valve 71 is connected between the discharge port of the screw conveyor and the waste tank 8, and a second discharge valve 72 is connected between the discharge port of the screw conveyor and the water-mixed detection tank 6. By setting the first discharge valve 71 to the open state and the second discharge valve 72 to the closed state, the slag remaining in the first discharge valve 71 can be sent into the waste tank 8, so that the slag to be tested can be sent from the mixing reaction chamber 11 into the screw conveyor; then, by setting the first discharge valve 71 to the closed state and the second discharge valve 72 to the open state, the slag to be tested can be sent into the water-mixed detection tank 6.

[0050] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A slag remediation device, characterized in that, include: A mixing reaction assembly with a mixing reaction chamber; A screening machine is used to screen slag. The screening machine has a coarse material inlet and a fine material inlet, and the fine material inlet of the screening machine is connected to the mixing reaction chamber. The crusher has its feed inlet connected to the coarse material outlet of the screening machine, and its discharge outlet connected to the mixing reaction chamber. A dosing assembly is used to add chemicals to the slag in the mixing reaction chamber; as well as, A detection component is used to detect the slag inside the mixing reaction chamber.

2. The slag repair equipment as described in claim 1, characterized in that, The dosing assembly includes an acid-base dosing assembly, and the detection assembly includes an acid probe, which is used to detect the acidity value of the slag in the mixing reaction chamber.

3. The slag remediation equipment as described in claim 2, characterized in that, The acid-base dosing assembly includes an acid reagent tank, an alkaline reagent tank, and a first spray component. The first spray component is located inside the mixing reaction chamber and is connected to the acid reagent tank and the alkaline reagent tank.

4. The slag remediation equipment as described in claim 3, characterized in that, The first spraying component includes a first spray head and a second spray head. The first spray head is connected to the acidic agent tank, and the second spray head is connected to the alkaline agent tank.

5. The slag remediation equipment as described in claim 1, characterized in that, The dosing assembly includes an improved dosing assembly, and the detection assembly includes a soil characteristic probe. The soil characteristic probe is used to detect the soil characteristic parameter values ​​of the slag in the mixing reaction chamber, and the soil characteristic probe corresponds to the improved dosing setting.

6. The slag remediation equipment as described in claim 5, characterized in that, The improved dosing assembly includes a second spray assembly and multiple improved reagent tanks, all of which are connected to the second spray assembly, which is located inside the mixing reaction chamber.

7. The slag repair equipment as described in claim 1, characterized in that, The slag remediation equipment also includes a water-mixing detection tank, and a sampling device is connected between the water-mixing detection tank and the mixing reaction chamber. The detection components include an acid probe and a soil characteristic probe, and the soil characteristic probe is located inside the water-mixing detection tank.

8. The slag remediation equipment as described in claim 7, characterized in that, The sampling device includes a screw conveyor, the inlet of which is connected to the mixing reaction chamber, and the outlet of which is connected to the water-mixing detection tank.

9. The slag repair equipment as described in claim 8, characterized in that, The slag remediation equipment also includes a waste tank, a first discharge valve is connected between the discharge port of the screw conveyor and the waste tank, and a second discharge valve is connected between the discharge port of the screw conveyor and the water-mixed detection tank.

10. The slag repair equipment as described in claim 7, characterized in that, The water mixing test tank is equipped with a stirring assembly, a water injection assembly, and a drain valve.

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