A kind of flocculation and sedimentation equipment for wide-size micro-particle classification

Abstract

The invention relates to a kind of grading flocculation and sedimentation equipment for wide-size fine particles, comprising a tank body, a spiral guide plate and a dosing pipe, wherein an inlet is formed at the upper part of the tank body, an outlet is formed at the lower part of the tank body, the spiral guide plate is vertically arranged in the tank body, the upper end of the spiral guide plate is connected to the inlet, a plurality of dosing pipes are sequentially arranged on the spiral guide plate at intervals, each dosing pipe is extended and arranged along the outer edge of the spiral guide plate to the inner edge of the spiral guide plate, and a plurality of dosing holes of different sizes are formed on each dosing pipe; by utilizing the sorting principle of the spiral guide plate, flocculants are gathered at the outer edge of the spiral guide plate, flocculants with light density pass through the triangular baffle, and particles with heavy density flow to the inner edge, and flocculants are separated out in time through a bottom diversion device, and a plurality of dosing pipes and dosing holes of different sizes are provided, so that drugs can act on finer particles in a targeted manner, so that the finer particles can obtain sufficient flocculants, and the flocculation effect of the finer particles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mineral processing, and in particular to a flocculation and sedimentation device for wide-size micro-fine particle classification. Background Art

[0002] During the mineral processing process, a large amount of industrial water is generated. In order to recycle this part of industrial water, flocculation and sedimentation are often used to obtain circulating water that meets the requirements. However, as the particle size becomes finer and finer during the mineral processing process, the particle size distribution in the tailings water is relatively wide. The addition of flocculants causes most of the coarse particles to flocculate and settle, while the flocculation effect of finer particles is very poor. The circulating water contains a large amount of fine particles, which makes the mineral processing effect worse and cannot meet the requirements of circulating water. Summary of the invention

[0003] In order to solve the defects of the prior art, the purpose of the present invention is to provide a flocculation and sedimentation equipment for wide-size fine particles, which can flocculate and sediment a large amount of fine particles in circulating water to solve the problem of poor circulating water quality.

[0004] In order to achieve the above purpose, a technical solution adopted by the present invention is:

[0005] A flocculation and sedimentation device for fine particles with a wide particle size range, comprising:

[0006] A tank body, wherein an inlet is formed at the upper portion of the tank body, and an outlet is formed at the lower portion of the tank body;

[0007] A spiral guide plate is vertically arranged in the tank body, and the upper end of the spiral guide plate is connected to the feed inlet;

[0008] There are multiple dosing tubes, which are arranged on the spiral guide plate in sequence and at intervals. Each dosing tube extends along the outer edge of the spiral guide plate to the inner edge of the spiral guide plate, and each dosing tube is formed with multiple dosing holes.

[0009] Optionally, the wide-size fine particle classification flocculation and sedimentation device further includes a flow divider, which is installed at the lower end of the spiral guide plate.

[0010] Optionally, the diverter includes a rotating shaft and a diverter plate, the rotating shaft is fixedly connected to the lower end of the spiral guide plate, and the diverter plate is rotatably connected to the rotating shaft.

[0011] Optionally, the wide-size fine particle classification flocculation and sedimentation equipment further includes a guide pipe, which is vertically arranged in the tank body, with the upper end of the guide pipe facing the diverter and the lower end of the guide pipe facing the discharge port.

[0012] Optionally, another dosing tube is installed on the top outer edge of the guide tube to further flocculate the fine particles flowing into the sedimentation device, thereby increasing the flocculation path and time. A plurality of openings are formed on the tube wall at the lower end of the guide tube.

[0013] Optionally, the plurality of dosing holes are sequentially arranged at intervals along the extension direction of the dosing tube, and the areas of the plurality of dosing holes increase sequentially from the outer edge of the spiral guide plate to the inner edge of the spiral guide plate.

[0014] Optionally, the wide-size fine particle classification flocculation and sedimentation equipment further includes a plurality of baffles, which are sequentially arranged on the spiral guide plate at intervals.

[0015] Optionally, the cross section of each baffle is triangular, and the height of one hypotenuse of the baffle is one third of the height of the spiral guide plate.

[0016] Optionally, the tank body includes a straight cylinder, a support column and a sedimentation cylinder, the feed port is formed at the upper part of the straight cylinder, and the spiral guide plate is vertically arranged in the straight cylinder; the support column is step-shaped, and the small port of the support column is fixedly connected to the outer side of the middle part of the straight cylinder; the sedimentation cylinder is inverted step-shaped, and the large port of the sedimentation cylinder is connected to the large port of the support column, and the small port of the sedimentation cylinder forms the discharge port.

[0017] Optionally, the flocculation and sedimentation equipment for wide-size fine particle classification also includes an ultrasonic component, which is fixedly installed on the outside of the small port of the sedimentation cylinder to allow the water inside the flocs to overflow, increase the density of the flocs, and achieve a better flocculation effect.

[0018] The beneficial effects of the wide-size micro-particle classification flocculation and sedimentation equipment provided by the present invention are:

[0019] A plurality of dosing tubes are arranged on the spiral guide plate at intervals in sequence, each dosing tube is extended along the outer edge of the spiral guide plate to the inner edge of the spiral guide plate, and a plurality of dosing holes are formed on each dosing tube; the spiral guide plate plays the role of multiple dosing, and at the same time, the sorting principle of the spiral guide plate is utilized to make the flocculants gather on the outer edge of the spiral guide plate, so that the flocculants with light density pass through the triangular baffle, and the particles with heavy density flow to the inner edge, and a plurality of dosing tubes are arranged, and the dosing amount at the location of the unflocculated particles on the inner edge is large according to the size of the opening, so that the flocculant can act on the fine particles in a targeted manner, and the baffle makes the water flow generate turbulence to accelerate the full contact and mixing of the particles and the drug, so that the finer particles can obtain sufficient flocculants, thereby improving the flocculation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the wide-size micro-particle classification flocculation and sedimentation equipment used in this application;

[0021] Figure 2This is a schematic diagram of the structure of the dosing tube of this application;

[0022] Figure 3 A front view of the baffle of the present application;

[0023] Figure 4 A top view of the baffle of the present application;

[0024] Figure 5 A top view of the diverter of the present application;

[0025] Figure 6 It is a structural schematic diagram of the lower end of the guide tube of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] Combination Figures 1 to 6 The present application proposes a flocculation and sedimentation device for fine particles of wide particle size, comprising a tank body 1, a spiral guide plate 2 and a dosing tube 3. Among them, the tank body 1 is the main container, and an inlet 4 is formed at the upper part of the tank body 1, and an outlet 5 is formed at the lower part of the tank body 1. The spiral guide plate 2 of this embodiment is arranged vertically in the tank body 1 as a whole, and the plate body of the spiral guide plate 2 is spiral, and the outer edge of the spiral guide plate 2 is higher than the inner edge, and the upper end of the spiral guide plate 2 is connected to the inlet 4; that is, industrial water to be flocculated and settled can be added from the inlet 4, then the industrial water will directly flow to the spiral guide plate 2 and flow downward along the spiral guide plate 2. Since the outer edge of the spiral guide plate 2 is higher than the inner edge, the industrial water at the outer edge will flow to the inner edge, ensuring that the industrial water will completely flow to the lower end of the spiral guide plate 2. It is worth noting that there are three dosing tubes 3 in this embodiment, and the three dosing tubes 3 are arranged on the spiral guide plate 2 in sequence and at intervals. Each dosing tube 3 is formed with multiple dosing holes 6 to facilitate the flocculant to enter the tank body 1. And each dosing tube 3 is arranged along the outer edge of the spiral guide plate 2 to extend to the inner edge of the spiral guide plate 2, that is, each dosing tube 3 will be inclined to the inner side of the spiral guide plate 2, so in the process of industrial water flowing, it can not only be mixed with the three dosing tubes 3 in sequence three times, but also can be further fully mixed along the dosing tube 3 in the process of industrial water flowing to the inner edge, so as to achieve efficient flocculation. It is easy to understand that each dosing tube 3 can be connected to an external dosing device through the end, and the number of dosing tubes 3 can be selected according to actual needs.

[0028] Furthermore, the multiple dosing holes 6 of this embodiment are arranged in sequence along the extension direction of the dosing tube 3, and the areas of the multiple dosing holes 6 increase from the outer edge of the spiral guide plate 2 to the inner edge of the spiral guide plate 2. The amount of dosing is regulated by the size of the aperture, so that the industrial water located at the outer edge of the spiral guide plate 2 is more fully mixed with the flocculant for flocculation. After the flocculation is completed, the lighter floccules will flow to the inner edge of the spiral guide plate 2, and no flocculant is needed. Therefore, the area of ​​the dosing holes 6 increases from the outer edge of the spiral guide plate 2 to the inner edge of the spiral guide plate 2, which can accurately control the amount of flocculation and mixing, and save flocculants while ensuring the flocculation efficiency. Under the sorting action of the spiral guide plate 2, the heavier fine particles will gather at the inner edge of the spiral guide plate 2, so as to fully contact with the drugs flowing out of the dosing holes 6 with a larger area, thereby accelerating the flocculation process.

[0029] The flocculation principle of this embodiment is: when coarse particles and fine particles coexist, the specific surface area of ​​coarse particles is smaller and that of fine particles is larger; as a result, fine particles require more flocculants and coarse particles require less flocculants. Therefore, when the dosing pipes are arranged at intervals so that the flocculants are added in multiple times, the coarse particles can flocculate quickly, while the fine particles cannot generate floccules due to insufficient flocculants added in each stage; by separating the floccules in time, the purpose of graded flocculation and sedimentation is achieved. If the dosing is not implemented in stages, the fine particles require more flocculants, and when the flocculants are added, the coarse particles will continuously absorb the flocculants, causing the coarse particles to absorb too much flocculants, resulting in poor flocculation effect and wasted flocculants.

[0030] Furthermore, the wide-size micro-particle classification flocculation sedimentation device of this embodiment also includes a diverter 7, which is installed at the lower end of the spiral guide plate 2. The diverter 7 includes a rotating shaft and a diverter plate, the rotating shaft is fixedly connected to the lower end of the spiral guide plate 2, and the diverter plate is rotatably connected to the rotating shaft. The angle of the diverter 7 can be adjusted according to the flocculation effect to achieve the effect of accurately and timely separating the floccules, and avoid the particles in the floccules from re-adsorbing the flocculant. At the same time, the unflocculated particles are diverted to the sedimentation device for further contact with the flocculant to produce floccules. The flocculation path of the fine particles is enlarged, and the flocculation effect is improved.

[0031] Furthermore, the wide-size fine particle classification flocculation sedimentation equipment also includes a guide tube 8, which is vertically arranged in the tank body 1, with the upper end of the guide tube 8 facing the diverter 7, and the lower end of the guide tube 8 facing the discharge port 5. Another dosing tube 3 is installed on the top outer edge of the guide tube 8, which can be used to supplement the flocculant to further flocculate the finer particles flowing into the sedimentation device, thereby increasing the flocculation path and time and improving the flocculation effect. A number of openings are formed on the tube wall at the lower end of the guide tube 8. After the separation action of the diverter 7, the floccules will flow into the upper end of the guide tube 8, and then be discharged from the discharge port 5 through the lower end of the guide tube 8.

[0032] Furthermore, the wide-size micro-fine particle classification flocculation sedimentation equipment of this embodiment also includes three baffles 9, which are arranged on the spiral guide plate 2 at intervals. The cross-section of each baffle 9 is triangular, and the height of one hypotenuse of the baffle 9 is one-third of the height of the spiral guide plate 2. The triangular baffle 9 can allow light-density flocculants to pass through, while heavy-density particles are blocked and flow to the inner edge, and fine particles flow downward on the spiral guide plate and can meet the subsequent dosing tube 3 for re-dosing, so that the fine particles can obtain sufficient flocculants. It is easy to understand that the number of dosing tubes 3 can be selected according to actual needs.

[0033] It is worth noting that in this embodiment, the tank body 1 includes a straight cylinder 10, a support column 11 and a sedimentation cylinder 12, the feed inlet 4 is formed at the upper part of the straight cylinder 10, and the spiral guide plate 2 is vertically arranged in the straight cylinder 10; the support column 11 is in a terraced shape, and the small end of the support column 11 is fixedly connected to the middle outer side of the straight cylinder 10, which can support the straight cylinder 10; and the sedimentation cylinder 12 is in an inverted terraced shape, the large end of the sedimentation cylinder 12 is connected to the large end of the support column 11, and the small end of the sedimentation cylinder 12 forms the discharge port 5. After separation by the diverter 7, the fully flocculated coarse particles will flow into the guide pipe 8, and the inadequately flocculated finer particles will enter the sedimentation cylinder 12, and the flocculant flowing down from the spiral guide plate 2 will be mixed again with the inadequately flocculated particles in the sedimentation cylinder 12, and the inadequately flocculated particles will slowly flocculate and slide to the bottom of the sedimentation cylinder 12 with the help of the slope of the sedimentation cylinder 12, and be discharged from the discharge port 5.

[0034] Furthermore, the wide-size fine particle classification flocculation sedimentation device of this embodiment further includes an ultrasonic component 13, which is fixedly mounted outside the small port of the sedimentation cylinder 12. The ultrasonic component 13 is an ultrasonic vibration device in this embodiment.

[0035] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] The above-described embodiments are merely illustrative of the present invention, rather than all embodiments. The present invention may also be implemented in other specific ways or other specific forms without departing from the gist or essential features of the present invention. Therefore, the described embodiments should be considered illustrative rather than restrictive in any respect. The scope of the present invention should be described by the attached claims, and any changes equivalent to the intent and scope of the claims should also be included within the scope of the present invention.

Claims

1. A flocculation and sedimentation device for fine particle classification with wide particle size, characterized in that: include: A tank body, wherein an inlet is formed at the upper portion of the tank body, and a discharge port is formed at the lower portion of the tank body; A spiral material guide plate, wherein the spiral material guide plate is vertically arranged in the tank body, the upper end of the spiral material guide plate is connected to the material inlet, and the outer edge of the spiral material guide plate is higher than the inner edge; There are multiple dosing tubes, and the multiple dosing tubes are arranged in sequence on the spiral guide plate at intervals. Each of the dosing tubes extends along the outer edge of the spiral guide plate to the inner edge of the spiral guide plate. Each of the dosing tubes is formed with multiple dosing holes. The multiple dosing holes are arranged in sequence along the extension direction of the dosing tube, and the areas of the multiple dosing holes increase from the outer edge of the spiral guide plate to the inner edge of the spiral guide plate.

2. The flocculation and sedimentation equipment for wide-size fine particle classification as claimed in claim 1, characterized in that: It also includes a flow divider, which is installed at the lower end of the spiral material guide plate.

3. The flocculation and sedimentation equipment for wide-size fine particle classification as claimed in claim 2, characterized in that: The flow divider comprises a rotating shaft and a flow divider plate. The rotating shaft is fixedly connected to the lower end of the spiral material guide plate, and the flow divider plate is rotatably connected to the rotating shaft.

4. The flocculation and sedimentation equipment for wide-size fine particle classification as claimed in claim 2, characterized in that: It also includes a guide pipe, which is vertically arranged in the tank body, with the upper end of the guide pipe facing the diverter and the lower end of the guide pipe facing the discharge port.

5. The flocculation and sedimentation equipment for wide-size fine particle classification as claimed in claim 4, characterized in that: Another drug adding tube is installed on the top outer edge of the flow guiding tube, and a plurality of openings are formed on the bottom tube wall of the flow guiding tube.

6. The flocculation and sedimentation equipment for wide-size fine particle classification as claimed in claim 1, characterized in that: It also includes a plurality of baffles, which are sequentially arranged on the spiral guide plate at intervals.

7. The flocculation and sedimentation equipment for wide-size fine particle classification according to any one of claims 1 to 6, characterized in that: The tank body includes a straight cylinder, a support column and a sedimentation cylinder, the feed port is formed at the upper part of the straight cylinder, and the spiral guide plate is vertically arranged in the straight cylinder; the support column is in a step-like shape, and the small port of the support column is fixedly connected to the outer middle part of the straight cylinder; the sedimentation cylinder is in an inverted step-like shape, and the large port of the sedimentation cylinder is connected to the large port of the support column, and the small port of the sedimentation cylinder forms the discharge port.

8. The flocculation and sedimentation equipment for wide-size fine particle classification as claimed in claim 7, characterized in that: It also includes an ultrasonic component, which is fixedly installed on the outside of the small port of the sedimentation cylinder.

Images