Flotation system and flow stabilizing structure

Abstract

The application relates to the technical field of flotation technology, and discloses a flotation system and a steady flow structure, which comprises a slurry suction bottom plate, the slurry suction bottom plate is arranged in a flotation cylinder, and the slurry suction bottom plate is provided with a slurry inlet; a stirring piece is rotationally arranged relative to the slurry suction bottom plate, the stirring piece is provided with a stirring part, the stirring part is located above the slurry inlet, a shooting gap is formed between the stirring piece and the slurry suction bottom plate, and the slurry inlet is connected to the shooting gap; a guide plate is swingingly arranged on the slurry suction bottom plate at one end, the guide plate is used for adjusting the angle of slurry shooting in the shooting gap after swinging, a plurality of guide plates are distributed along the circumference of the slurry inlet at intervals, and a pull rod is arranged on the guide plate at one end and used for driving the guide plate to swing. Through the technical scheme, the problem that materials cannot be smoothly enriched into foam due to material differences in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flotation, in particular to a flotation system and a flow stabilizing structure. BACKGROUND

[0002] The flow stabilizing device of the flotation machine is an important component for maintaining the stability of the flow field in the flotation process, which is used to stabilize the dispersion of the pulp ejected by the cyclone after being stirred by the stirring mechanism, so as to make the pulp dispersed uniformly and floated in the flotation tank body. However, when the mineral properties are poor, the proportion of coarse particles is high, or the coarse particles run away before flotation, it often leads to the premature collapse of the gas bubbles loaded with minerals before reaching the foam layer or being collected during the flotation process, thereby causing the minerals to fall back, affecting the concentrate yield and production index, increasing the production load, and also causing economic losses.

[0003] The existing technology is almost the same type of flow stabilizing device for the flotation machine, and the conventional structure is composed of a false bottom and a flow guide plate. It cannot play a positive role in the flotation time in the single flotation tank and in dealing with sudden changes in the flotation feed, so it cannot smoothly enrich the foam before it breaks down during the flotation process. SUMMARY

[0004] The present application provides a flotation system and a flow stabilizing structure, which solves the problem of not being able to smoothly enrich the foam during flotation due to material differences in the related art.

[0005] The technical scheme of the present application is as follows:

[0006] A flow stabilizing structure for adjusting the flotation time of slurry, comprising:

[0007] A slurry suction bottom plate, which is arranged in a flotation cylinder, has a slurry inlet, and is used to set up a slurry suction bottom plate;

[0008] A stirring member, which is arranged to rotate relative to the slurry suction bottom plate, has a stirring part, and is located above the slurry inlet, and has an ejection gap between the stirring member and the slurry suction bottom plate, and the slurry inlet leads to the ejection gap;

[0009] A flow guide plate, which is swingably arranged on the slurry suction bottom plate, adjusts the angle of the slurry ejected from the ejection gap after swinging, and has a plurality of flow guide plates, which are distributed along the circumference of the slurry inlet at intervals;

[0010] A pull rod, which is arranged at one end of the flow guide plate, is used to swing the flow guide plate.

[0011] Optionally, the stirring member comprises:

[0012] a stirring shaft, which is arranged to rotate relative to the pulp suction bottom plate;

[0013] a impeller, which is arranged at one end of the stirring shaft close to the pulp suction bottom plate, and which is used to stir the pulp in the stirring section;

[0014] a separation cylinder, which is arranged on the pulp suction bottom plate, and in which the impeller is arranged, and which forms a stirring section between the impeller and the separation cylinder, and which forms the ejection gap between the lower end of the separation cylinder and the pulp suction bottom plate.

[0015] Optionally, the pulp suction section is formed between the lower side of the pulp suction bottom plate and the flotation cylinder, the flow state adjustment section is formed between the separation cylinder, the upper side of the pulp suction bottom plate and the flotation cylinder, and the froth separation section is formed in the flotation cylinder above the separation cylinder.

[0016] Optionally, the pulp suction bottom plate further comprises:

[0017] a lower flow guide, which is arranged on the lower surface of the pulp suction bottom plate, and which has a plurality of lower flow guides, and the plurality of lower flow guides are arranged at intervals along the circumference of the pulp inlet, and a flow guide channel is formed between two adjacent lower flow guides.

[0018] Optionally, the pulp suction bottom plate further comprises:

[0019] an upper flow guide, which is arranged on the upper surface of the pulp suction bottom plate, and which has a plurality of upper flow guides, and the plurality of upper flow guides are arranged at intervals along the circumference of the separation cylinder, and the flow guide plate is arranged between two adjacent upper flow guides.

[0020] Optionally, the pulp suction bottom plate further comprises:

[0021] a side plate, which has a plurality of side plates, and the flow guide plate is arranged on both sides of the flow guide plate.

[0022] Optionally, one end of the pull rod is hingedly connected to the flow guide plate, and the pulp suction bottom plate further comprises:

[0023] a mounting block, which is slidably arranged on the stirring shaft;

[0024] a connecting block, which is rotatably arranged on the mounting block, and the other end of the pull rod is hingedly arranged on the connecting block.

[0025] Optionally, the two side edges of the flow guide plate perpendicular to the axis of the pulp suction bottom plate and the radial direction of the pulp suction bottom plate form an included angle, the lower flow guide has a first straight section and a first curved section, one end of the first curved section is close to the edge of the pulp suction bottom plate, and the first straight section is connected to the other end of the first curved section.

[0026] Optionally, the two side edges of the guide plate perpendicular to the axis of the pulp suction bottom plate and the radial direction of the pulp suction bottom plate have an included angle, the upper guide vane and the lower guide vane each have a second straight segment and a second curved segment, and the second curved segment is close to the edge of the pulp suction bottom plate at one end, and the second straight segment is connected to the other end of the second curved segment.

[0027] A flotation system uses a flow stabilizing structure.

[0028] The working principle and beneficial effects of the present application are as follows:

[0029] In the present application, in order to solve the problem that the foam cannot be enriched smoothly due to material differences during flotation in the related art, an angle-adjustable guide plate is designed, and by adjusting the angle of the guide plate, the flow state of the fluid ejected after stirring by the stirring member can be controlled. Thus, the movement trajectory of the ore pulp in the flotation cylinder is changed, the flotation time is increased or decreased according to different ore pulp properties, the timely collection and removal of flotation foam is ensured, and the controllability and variability of the flotation efficiency are improved.

[0030] The working principle of the present application is that the angle of the guide plate can be adjusted by the pull rod, and the guide plate can be in a horizontal state, inclined upward or inclined downward away from one end of the stirring member. The lowest angle of the guide plate is level with the pulp suction bottom plate, and the pulp suction bottom plate has a downward inclination angle of 10°. When the angle of the guide plate is set to 0° (i.e., horizontal), the ejected ore pulp in the stirring area is vertically ejected into the wall plate of the flotation cylinder, and the ore pulp has two components of vertical upward and vertical downward, the vertically upward fluid is transported to the foam layer by the foam, and the product is collected; when the angle of the guide plate is set to be greater than 0° (i.e., inclined upward), the ejected ore pulp in the stirring area is ejected into the wall plate of the flotation cylinder at a certain angle, and the ore pulp will have a vertically upward component and a component with a certain inclination angle with the vertical direction, the component with the inclination angle has a shorter upward path in the ore pulp, which reduces the flotation time, and finally floats near the stirring shaft to collect the foam, and the foam layer generated in this area gradually flows into the periphery of the flotation tank body to achieve the purpose of product collection; when the angle of the guide plate is set to be less than 0° (i.e., inclined downward), part of the ejected ore pulp in the stirring area is vertically ejected into the wall plate of the flotation tank body in the horizontal direction, and part of the ore pulp forms a downward inclined fluid along with the guide plate, the fluid collides with the wall plate of the flotation tank body, generating vertically downward and downward inclined fluids, and this part of the fluid enters the ore pulp below the ore pulp suction bottom plate along with the incoming ore pulp, thereby achieving the effect of secondary mineralization; by adjusting the angle of the guide plate, the flotation process time of the ore pulp is adjusted, and the problem of coarse grain foam enrichment is solved, and the flotation conditions are optimized. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above-mentioned features, technical characteristics, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and understandable manner combined with the accompanying drawings.

[0032] Figure 1 It is the whole structure schematic diagram of the present application;

[0033] Figure 2 It is the local structure sectional view of the present application;

[0034] Figure 3 It is the structure schematic diagram of the present application installing the guide vane;

[0035] Figure 4 It is the structure schematic diagram of the present application installing the side plate;

[0036] Figure 5 It is the slurry flow schematic diagram of the present application when floating.

[0037] In the figure: 1, the slurry suction bottom plate, 2, the flotation cylinder, 11, the slurry inlet, 3, the stirring part, 301, the stirring part, 302, the ejection gap, 4, the guide plate, 5, the pull rod, 31, the stirring shaft, 32, the impeller, 33, the isolation cylinder, 6, the lower guide vane, 61, the guide channel, 7, the upper guide vane, 8, the side plate, 9, the mounting block, 10, the connecting block, 601, the first straight line segment, 602, the first curve segment, 603, the second straight line segment, 604, the second curve segment. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0039] In order to make the drawing simple, only the parts related to the invention are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0040] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] Embodiment one

[0043] With reference to Figures 1-2 For the first embodiment of the present application, a stable flow structure is proposed for adjusting the time of pulp flotation, which comprises a pulp suction bottom plate 1, the pulp suction bottom plate 1 is used to be arranged in a flotation cylinder 2, the pulp suction bottom plate 1 has a pulp inlet 11; a stirring part 3 is arranged relative to the pulp suction bottom plate 1, the stirring part 3 has a stirring part 301, the stirring part 301 is located above the pulp inlet 11, the stirring part 3 and the pulp suction bottom plate 1 have a shooting gap 302, the pulp inlet 11 leads to the shooting gap 302; the guide plates 4 are swing arranged on the pulp suction bottom plate 1, the guide plates 4 swing to adjust the angle of the shooting gap 302 shooting pulp, the guide plates 4 have a plurality of, the plurality of guide plates 4 are distributed along the circumference of the pulp inlet 11; the pull rod 5 is arranged on the guide plate 4, the pull rod 5 is used to swing the guide plate 4.

[0044] In order to solve the problem that the material cannot be smoothly enriched in the foam during flotation in the related art, the angle adjustable guide plate 4 is designed, by adjusting the angle of the guide plate 4, the flow state of the shooting fluid after the stirring part 3 is stirred can be controlled. Thus, the movement track of the ore pulp in the flotation cylinder 2 is changed, the flotation time is increased or decreased according to different ore pulp properties, the timely collection and removal of the flotation foam is ensured, and the controllability and variability of the flotation efficiency are improved.

[0045] Specifically, the angle of the flow guide plate 4 can be adjusted by the pull rod 5, and the flow guide plate 4 can be in a horizontal state, inclined upward or inclined downward away from one end of the stirring part 3. The lowest angle of the flow guide plate 4 is level with the pulp suction bottom plate 1, and the pulp suction bottom plate 1 has a horizontal downward inclination angle of 10°. When the angle of the flow guide plate 4 is set to 0° (i.e. horizontal), the discharged pulp in the stirring area is vertically injected into the wall plate of the flotation cylinder 2, and the pulp has two components of vertical upward and vertical downward, and the vertical upward component is transported to the foam layer by the foam to collect the product. When the angle of the flow guide plate 4 is set to be greater than 0° (i.e. inclined upward), the discharged pulp in the stirring area is injected into the wall plate of the flotation cylinder 2 at a certain angle, and the pulp has two components of vertical upward and inclined downward, and the inclined component reduces the flotation time in the pulp, and finally floats near the stirring shaft 31 to collect the foam, and the foam layer generated in this area gradually flows into the periphery of the flotation tank body to achieve the purpose of product collection. When the angle of the flow guide plate 4 is set to be less than 0° (i.e. inclined downward), part of the discharged pulp in the stirring area is vertically injected into the wall plate of the flotation tank body in the horizontal direction, and part of the discharged pulp forms a downward inclined component along with the flow guide plate 4, and the component collides with the wall plate of the flotation tank body to generate a vertical downward component and a downward inclined component. The components enter the pulp below the pulp suction bottom plate along with the feed pulp, thereby achieving the effect of secondary mineralization. By adjusting the angle of the flow guide plate 4, the flotation process time of the pulp is adjusted, and the problem of coarse particle foam enrichment is solved, thereby optimizing the flotation conditions.

[0046] Example Two

[0047] Reference Figures 1-2 , Figure 5 The second embodiment of the present application is different from the first embodiment in that the stirring part 3 comprises a stirring shaft 31, the stirring shaft 31 is arranged to rotate relative to the pulp suction bottom plate 1; a impeller 32 is arranged at one end of the stirring shaft 31 close to the pulp suction bottom plate 1, and the impeller 32 is a stirring part 301; a separation cylinder 33 is arranged on the pulp suction bottom plate 1, and the impeller 32 is located in the separation cylinder 33, and a stirring area is formed between the impeller 32 and the separation cylinder 33, and a discharge gap 302 is formed between the lower end of the separation cylinder 33 and the pulp suction bottom plate 1.

[0048] A pulp suction area is formed between the lower side of the pulp suction bottom plate 1 and the flotation cylinder 2, a flow state adjusting area is formed between the separation cylinder 33, the upper side of the pulp suction bottom plate 1 and the flotation cylinder 2, and a foam separation area is formed in the flotation cylinder 2 above the separation cylinder 33.

[0049] Further comprising a lower flow guide piece 6, the lower flow guide piece 6 is arranged on the lower surface of the pulp suction bottom plate 1, and the lower flow guide piece 6 has a plurality of lower flow guide pieces 6, the plurality of lower flow guide pieces 6 are distributed along the circumference of the pulp inlet 11 at intervals, and a flow guide channel 61 is formed between adjacent two lower flow guide pieces 6.

[0050] In this embodiment, the impeller 32 adopts a design with a certain arc and number of blades, for example, six arc-shaped blades are used, the isolation cylinder 33 is a cylindrical structure, and a suitable width is reserved between the two as a stirring area. When the stirring shaft 31 drives the impeller 32 to rotate at high speed, the pulp is strongly stirred in the stirring area formed by the isolation cylinder 33 and the impeller 32, forming a uniform flow state, and then flows out through the ejection gap 302. The combination of the stirring shaft 31 and the impeller 32 forms a high-efficiency stirring system, which can strongly stir the pulp and make the different components in the pulp fully mix and contact with the flotation reagent. The setting of the isolation cylinder 33 not only limits the stirring area, making the stirring more concentrated and effective, but also ensures the stability of the ejection gap 302, so that the pulp can enter the deflector 4 from the stirring area in a stable flow and state, which helps to improve the stability and reliability of the entire flotation process.

[0051] The lower deflector 6 is in the shape of a combination of curves and straight lines. In the process of pulp flowing from the pulp suction area to the stirring area, the lower deflector 6 guides the pulp to flow along the flow channel 61, and can prevent the pulp from forming eddies or local accumulation under the pulp suction bottom plate 1, so that the pulp is uniformly distributed to each part and enters the stirring area. The setting of the lower deflector 6 can effectively guide and distribute the flow of the pulp under the pulp suction bottom plate 1, avoid the flow of the pulp being disorderly, and ensure that the pulp can uniformly enter the subsequent stirring and other processing links, thereby improving the uniformity and stability of the pulp treatment by the entire flow stabilizing structure, and further improving the flotation effect.

[0052] Embodiment Three

[0053] Referring to Figure 3 For the third embodiment of the present application, the upper deflector 7 is added based on the second embodiment. The upper deflector 7 is arranged on the upper surface of the pulp suction bottom plate 1. The upper deflector 7 has a plurality of upper deflectors 7, and the plurality of upper deflectors 7 are distributed along the circumference of the isolation cylinder 33. Between any two adjacent upper deflectors 7, there is a deflector 4.

[0054] In this embodiment, the shape of the upper deflector 7 is also a structure with curve segments and straight line segments. After the pulp flows out from the stirring area through the ejection gap 302, the upper deflector 7 guides the pulp again. The pulp flows according to the different angles of the deflector 4, so that it flows to the froth separation area according to the predetermined path after flowing to the flow state adjusting area, or part of the pulp flows back to the pulp suction area. This is conducive to the formation of a stable froth layer in the froth separation area, and improves the combination efficiency of the target substance and the froth.

[0055] The upper guide vane 7 can further guide and arrange the slurry flowing out of the discharge gap 302, and cooperates with the lower guide vane 6 to form a comprehensive optimization of the entire slurry flow path. This design helps to improve the flow stability and directionality of the slurry in the flotation cylinder 2, making the flotation process more orderly, improving the efficiency and quality of flotation, especially in the foam separation link, which can improve the stability of the foam and the enrichment effect of the target substance.

[0056] Embodiment four

[0057] With reference to Figure 1 , Figure 2 , Figure 4 , the fourth embodiment of the present application, which is based on embodiment two, adds a side plate 8, and the side plate 8 has a plurality of guide plates 4 on both sides.

[0058] In this embodiment, the side plate 8 is fixed on both sides of each guide plate 4 by welding or bolt connection. During the swinging of the guide plate 4, the side plate 8 limits the slurry to flow only from the front of the guide plate 4, preventing the slurry from leaking or generating turbulence from the side. It ensures the accurate control of the guide plate 4 on the flow direction of the slurry, so that the slurry is discharged at a set angle, improving the processing capacity of the entire flow stabilization structure for high-concentration and high-flow slurry. When processing various types of slurry, especially high-concentration and high-viscosity slurry, it can effectively prevent the leakage and turbulence of the slurry, ensure that the entire flotation process proceeds according to the predetermined flow state, and improve the reliability and adaptability of the flotation system.

[0059] Embodiment five

[0060] With reference to Figure 1 , the fifth embodiment of the present application, which is different from embodiment three or embodiment four, is that the pull rod 5 is hinged at one end to the guide plate 4, and further includes a mounting block 9, the mounting block 9 is slidingly arranged on the stirring shaft 31; the connecting block 10 is rotatably arranged on the mounting block 9, and the other end of the pull rod 5 is hingedly arranged on the connecting block 10.

[0061] In this embodiment, the pull rod 5 can be hinged to the guide plate 4 through a spherical hinge pair, and the mounting block 9 is a metal block with a slide, which can slide up and down along the stirring shaft 31. After the sliding mounting block 9, the position of the mounting block 9 on the stirring shaft 31 can be adjusted. When it is necessary to adjust the angle of the guide plate 4, the mounting block 9 is pushed to slide on the stirring shaft 31, the connecting block 10 slides together, and then the pull rod 5 is pulled to swing the guide plate 4. During the rotation of the stirring shaft 31, the mounting block 9 and the connecting block 10 are arranged to rotate relative to each other, so that the stirring shaft 31 can rotate in the connecting block 10, avoiding the mutual influence between them. In the automatic flotation production line, this structure can accurately control the angle of the guide plate 4 according to the preset program and the information feedback by the sensor. When processing different batches of ore slurry, the angle of the guide plate 4 is automatically adjusted according to the composition and properties of the ore to optimize the flotation time. According to different flotation process requirements and slurry characteristics, the angle of the guide plate 4 can be accurately adjusted, which improves the automation degree and adaptability of the flow stabilizing structure, reduces manual intervention, and improves the efficiency and stability of the flotation production.

[0062] Embodiment six

[0063] With reference to Figure 1 , Figure 2 , Figure 4 , the sixth embodiment of the present application is different from the fourth embodiment in that the two side edges of the guide plate 4 perpendicular to the axis of the slurry suction bottom plate 1 have an included angle with the radial direction of the slurry suction bottom plate 1, and the lower guide plate 6 has a first straight segment 601 and a first curved segment 602, one end of the first curved segment 602 being close to the edge of the slurry suction bottom plate 1, and the first straight segment 601 being connected with the other end of the first curved segment 602.

[0064] In this embodiment, the two side edges of the guide plate 4 perpendicular to the axis of the slurry suction bottom plate 1 are designed to have an included angle with the radial direction of the slurry suction bottom plate 1, and the side plate 8 has the same trend as the two side edges of the guide plate 4. This structure of the guide plate 4 and the side plate 8 reduces the weakening of the velocity of the slurry ejected from the ejection gap 302, so that the guide plate 4 can better play a guiding role. During the flow of the slurry, the shape of the side edge of the guide plate 4 and the shape of the lower guide plate 6 cooperate with each other to guide the slurry to gradually change the flow direction. On the one hand, it can generate beneficial shear force on the slurry, which is beneficial to the dispersion and treatment of impurities. On the other hand, it can reduce the resistance of the slurry flow, so that the slurry flows more smoothly into the subsequent area, flows more smoothly and efficiently in the flow stabilizing structure, and improves the processing capacity and adaptability of the entire flotation process for different types of slurry.

[0065] Embodiment seven

[0066] With reference to Figure 3For the seventh embodiment of the present application, which is different from the third embodiment, the two side edges of the flow guide plate 4 perpendicular to the axis of the pulp suction bottom plate 1 have an included angle with the radial direction of the pulp suction bottom plate 1, the upper flow guide piece 7 and the lower flow guide piece 6 each have a second straight line segment 603 and a second curved line segment 604, and the second curved line segment 604 is close to the edge of the pulp suction bottom plate 1 at one end, and the second straight line segment 603 is connected to the other end of the second curved line segment 604.

[0067] In this embodiment, the two side edges of the flow guide plate 4 perpendicular to the axis of the pulp suction bottom plate 1 are designed to have an included angle with the radial direction of the pulp suction bottom plate 1, the shape of the upper flow guide piece 7 and the lower flow guide piece 6 is matched with the shape of the flow guide piece, and each has a second straight line segment 603 and a second curved line segment. During the process of the pulp passing from the pulp suction area to the stirring area and then to the foam separation area, the flow guide plate 4, the upper flow guide piece 7 and the lower flow guide piece 6 work together. The flow guide plate 4 adjusts the ejection angle of the pulp, and the upper flow guide piece 7 and the lower flow guide piece 6 guide and shape the pulp at different heights, so that the pulp forms a stable and orderly flow state in the entire flotation cylinder 2, improving the contact efficiency of the target substance and the flotation reagent and the foam separation effect.

[0068] The shape design of the flow guide plate 4, the upper flow guide piece 7 and the lower flow guide piece 6 is matched with each other, reducing the resistance to the flow of the pulp while guiding the flow. It can improve the stability and orderliness of the pulp flow state in the entire flotation process, enhance the contact effect of the target substance and the flotation reagent, improve the efficiency and quality of foam separation, and thus improve the processing capacity and flotation effect of the entire flotation system on complex component pulp.

[0069] Embodiment eight

[0070] For the eighth embodiment of the present application, a flotation system using a stable flow structure is proposed.

[0071] In this embodiment, the above stable flow structure is installed in the flotation cylinder 2 in the flotation system. When performing the flotation operation, the flotation system can adjust the angle of the flow guide plate 4 in the stable flow structure, adjust the rotation speed of the stirring piece 3, and other factors according to the type and grade of the ore, to optimize the flotation process parameters, improve the recovery rate of useful minerals in the ore and the concentrate quality. It has the advantages of accurate control of the flotation time of the pulp and all-round optimization of the flow state of the pulp. It can adapt to the flotation needs of different types and properties of pulp, improve the stability, reliability and efficiency of the flotation process, reduce production costs, improve product quality, and has wide application prospects in flotation processes in the mining, chemical, papermaking and other industries.

[0072] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A flow stabilizing structure, characterized by, For adjusting the time of slurry flotation, comprising: Suction pulp bottom plate (1), the suction pulp bottom plate (1) is used to be arranged in the flotation cylinder (2), the suction pulp bottom plate (1) has pulp inlet (11); Stirring piece (3), the stirring piece (3) is rotatably arranged relative to the suction pulp bottom plate (1), the stirring piece (3) has stirring part (301), the stirring part (301) is located above the pulp inlet (11), the stirring piece (3) and the suction pulp bottom plate (1) have ejection gap (302), the pulp inlet (11) leads to the ejection gap (302); Deflector (4), one end of the deflector (4) is swingably arranged on the suction pulp bottom plate (1), the deflector (4) adjusts the angle of the ejection gap (302) after swinging, the deflector (4) has a plurality of, a plurality of the deflector (4) is distributed along the circumference of the pulp inlet (11) interval; Pull rod (5), one end of the pull rod (5) is arranged on the deflector (4), the pull rod (5) is used to swing the deflector (4), so that the deflector (4) is in a horizontal state, or the deflector (4) is inclined upward or downward away from one end of the stirring piece (3).

2. A flow straightening structure according to claim 1, wherein The stirring piece (3) comprises: Stirring shaft (31), the stirring shaft (31) is rotatably arranged relative to the suction pulp bottom plate (1); Impeller (32), the impeller (32) is arranged on one end of the stirring shaft (31) close to the suction pulp bottom plate (1), the impeller (32) is the stirring part (301); Isolation cylinder (33), the isolation cylinder (33) is arranged on the suction pulp bottom plate (1), the impeller (32) is located in the isolation cylinder (33), the impeller (32) and the isolation cylinder (33) form a stirring zone, the lower end of the isolation cylinder (33) and the suction pulp bottom plate (1) form the ejection gap (302).

3. A flow straightening structure according to claim 2, wherein The lower side of the suction pulp bottom plate (1) and the flotation cylinder (2) form a suction zone, the isolation cylinder (33), the upper side of the suction pulp bottom plate (1) and the flotation cylinder (2) form a flow state adjusting zone, the flotation cylinder (2) above the isolation cylinder (33) forms a foam separation zone.

4. A flow straightening structure according to claim 2, wherein Further comprising: Lower deflector (6), the lower deflector (6) is arranged on the lower surface of the suction pulp bottom plate (1), the lower deflector (6) has a plurality of, a plurality of the lower deflector (6) is distributed along the circumference of the pulp inlet (11) interval, two adjacent lower deflectors (6) form a flow guide channel (61).

5. A flow straightening structure according to claim 4, wherein Further comprising: Upper deflector (7), the upper deflector (7) is arranged on the upper surface of the suction pulp bottom plate (1), the upper deflector (7) has a plurality of, a plurality of the upper deflector (7) is distributed along the circumference of the isolation cylinder (33) interval, two adjacent upper deflectors (7) are distributed with the deflector (4).

6. A flow straightening structure according to claim 4, wherein Further comprising: Side plate (8), the side plate (8) has a plurality of, the deflector (4) is provided with the side plate (8) on both sides.

7. A flow straightening structure according to claim 5 or 6, wherein The pull rod (5) is hingedly connected to the flow guide plate (4) at one end, and further comprises: a mounting block (9) slidingly arranged on the stirring shaft (31); a connecting block (10) rotatably arranged on the mounting block (9), and the other end of the pull rod (5) is hingedly arranged on the connecting block (10).

8. A flow straightening structure according to claim 6, wherein The two side edges of the flow guide plate (4) perpendicular to the axis of the pulp suction bottom plate (1) have an included angle with the radial direction of the pulp suction bottom plate (1), the lower flow guide plate (6) has a first straight line segment (601) and a first curved line segment (602), one end of the first curved line segment (602) is close to the edge of the pulp suction bottom plate (1), and the first straight line segment (601) is connected to the other end of the first curved line segment (602).

9. A flow straightening structure according to claim 5, wherein The two side edges of the flow guide plate (4) perpendicular to the axis of the pulp suction bottom plate (1) have an included angle with the radial direction of the pulp suction bottom plate (1), the upper flow guide plate (7) and the lower flow guide plate (6) both have a second straight line segment (603) and a second curved line segment (604), one end of the second curved line segment (604) is close to the edge of the pulp suction bottom plate (1), and the second straight line segment (603) is connected to the other end of the second curved line segment (604).

10. A flotation system using the flow stabilizing structure according to any one of claims 1-9.

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