High-efficiency and high-scrubbing modification machine

Abstract

The invention belongs to the technical field of modifying machines, and particularly relates to a high-efficiency and high-scrubbing modifying machine which comprises a modifying machine body, the modifying machine body comprises a barrel, a stirring assembly and at least one baffle arranged in the barrel, the stirring assembly comprises a stirring shaft and at least one set of stirring blades, a through hole is formed in the center of the baffle, and the through hole is communicated with the barrel. Stirring blades are arranged in the through holes, the stirring blades and the through holes are correspondingly arranged, and the stirring blades stir and shear materials passing through the through holes; each stirring blade comprises a paddle and a plurality of vertical paddle teeth arranged on the paddle, each vertical paddle tooth is provided with at least one shearing angle, and guide shearing surfaces are arranged on the two sides of each shearing angle and are used for scrubbing and guiding materials to the two sides so as to increase the scrubbing probability of the materials and other vertical paddle teeth; according to the invention, the shearing capacity and the shearing efficiency of the product can be greatly improved, particularly the scrubbing capacity on fine particles can be improved, and the flotation efficiency and the recovery capacity are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of modifiers, and particularly relates to an efficient and highly scrubbing modifier. Background Art

[0002] The stirring blades in the pulp modifier can scrub the surface of particles under high shear conditions to effectively remove the oxide layer or high-ash fine mud on the particle surface, form a fresh surface, facilitate the full adsorption of flotation reagents, thereby reducing the dosage of flotation reagents and improving the flotation efficiency and treatment capacity.

[0003] CN208177396U discloses an efficient pulp modifier, which includes a mixing tank body. On the right side of the mixing tank body, it is connected to an integrated mixing tank body through a bottom connecting pipe; inside the mixing tank body, a driving motor is provided at the top. Below the driving motor is connected to a gearbox, and a driving shaft extends downward from the bottom of the gearbox. The driving shaft directly extends into the interior of the mixing tank body; on the driving shaft, a plurality of stirring groups are arranged from top to bottom, and a partition is respectively connected and fixed below each stirring group; on the front side of the mixing tank body, a discharge port is arranged at the front end of the top. Through the above design, the present invention mixes the reagent and ore powder in the mixing tank body, sprays with high-pressure liquid, and then enters the mixing tank body from the bottom of the mixing tank body, and the reagent and ore powder are fully mixed by stirring through at least three groups of stirring groups from bottom to top at the bottom of the mixing tank body.

[0004] Although it also has a partition structure, although the partition can play a certain blocking role and increase the flow time of materials in the mixing tank body, its improvement of shear force is not obvious, especially the friction and kneading of fine particles cannot be improved basically.

[0005] In addition, the stirring blades of the current pulp modifier are generally traditional stirring blades, and their scrubbing ability needs to be improved. Especially the friction and kneading of fine particles are not enough, and many fine particles are wasted. How to improve the scrubbing ability of fine particles is our research and development direction, that is, further improving the shear ability is our research and development direction. Summary of the Invention

[0006] The present invention provides an efficient and highly scrubbing modifier, which can solve the problems pointed out in the background art.

[0007] An efficient and highly scrubbing modifier includes a modifier body. The modifier body includes a cylinder body, a stirring assembly, and at least one baffle arranged in the cylinder body. The stirring assembly includes a stirring shaft and at least one group of stirring blades. A through hole is provided at the center of the baffle, and a stirring blade is arranged in the through hole. The stirring blade is correspondingly arranged with the through hole, and the stirring blade stirs and shears the material passing through the through hole.

[0008] The stirring blade includes a paddle blade and a plurality of vertical paddle teeth arranged on the paddle blade. The vertical paddle teeth have at least one shear angle, and guiding shear surfaces are provided on both sides of the shear angle. The guiding shear surfaces are used for scrubbing and guiding the material to both sides to increase the scrubbing probability of the material with other vertical paddle teeth;

[0009] A plurality of vertical paddle teeth are arranged on the paddle blade with the same center of a circle. The center points of all the vertical paddle teeth on the same circle are on the same rotation circle. The cross-section of the vertical paddle tooth is rectangular, and the connection line of its diagonal is tangent to the rotation circle where its center point is located.

[0010] The diameter of the through hole is larger than the stirring diameter of the stirring blade, and first toothed blades are circumferentially arrayed on the inner wall of the through hole;

[0011] A plurality of second toothed blades are provided on both the upper and lower sides of the baffle;

[0012] A third toothed blade is provided above the stirring blade, and the third toothed blade is connected to the stirring shaft.

[0013] Preferably, the cross-section of the vertical paddle tooth is square.

[0014] Preferably, a plurality of circles of vertical paddle teeth are provided on both the upper and lower surfaces of the paddle blade.

[0015] Preferably, inclined baffles are circumferentially arrayed on the inner wall of the cylinder body, and the inclined baffles are used for guiding the material to the central area.

[0016] Preferably, shear teeth are provided on at least one side of the inclined baffle.

[0017] Beneficial effects: The present invention provides a modifier with high efficiency and high scrubbing ability, which can greatly improve the shearing ability and shearing efficiency of the product, especially can improve the scrubbing ability for fine particles, and improve the flotation efficiency and recovery ability. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present invention,

[0019] Figure 2 is a schematic structural diagram of the stirring assembly of the present invention,

[0020] Figure 3 is a schematic structural diagram of the stirring blade of the present invention,

[0021] Figure 4 is a schematic plan view of the stirring blade of the present invention,

[0022] Figure 5 is a schematic internal structural diagram of the present invention,

[0023] Figure 6 Schematic diagram of the cross-section of the present invention

[0024] Explanation of reference numerals in the drawings:

[0025] Reference numerals in the figure: cylinder body 1; baffle 2; stirring shaft 31; stirring blade 32; paddle blade 321; vertical paddle teeth 322; guiding shear surface 323; shear angle 324; through hole 4; first toothed blade 5; second toothed blade 6; third toothed blade 7; inclined baffle 8; shear teeth 81. Specific implementation mode

[0026] The following will describe in detail a specific implementation mode of the present invention in conjunction with the drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation mode.

[0027] Example 1:

[0028] As Figure 1 shown, a high-efficiency and high-scrubbing modification machine provided by an embodiment of the present invention includes a modification machine body. The modification machine body includes a cylinder body 1, a stirring assembly, and at least one baffle 2 arranged in the cylinder body 1. The stirring assembly includes a stirring shaft 31 and at least one group of stirring blades 32. A through hole 4 is provided at the center of the baffle 2, and a stirring blade 32 is arranged in the through hole 4. The stirring blade 32 is correspondingly arranged with the through hole 4. The stirring blade 32 stirs and shears the material passing through the through hole 4. The material is blocked by the baffle 2, so that the residence time of the material in each area can be prolonged, the stirring time can be increased, and the shearing and scrubbing probability with the stirring assembly can be improved, thereby improving the shearing ability. In addition, a through hole 4 is provided at the center of the baffle 2, and a stirring blade 32 is arranged in the through hole 4. This design structure enables all materials to pass through the through hole 4, that is, they must be stirred by the stirring blade 32, greatly increasing the shearing and scrubbing probability with the stirring blade 32, thereby further improving the shearing ability. In the existing structure, a number of small holes are provided in the baffle 2, and this structure cannot ensure that the material must be stirred by the stirring blade 32.

[0029] The stirring blade 32 includes a paddle blade 321 and a number of vertical paddle teeth 322 arranged on the paddle blade 321. The vertical paddle teeth 322 have at least one shear angle 324, and guiding shear surfaces 323 are provided on both sides of the shear angle 324. The guiding shear surfaces 323 are used for scrubbing and guiding the material to both sides to increase the scrubbing probability of the material with other vertical paddle teeth 322 on both sides or one side.

[0030] Specifically, there are several vertical paddle teeth 322 arranged concentrically on the paddle blade 321. Preferably, several vertical paddle teeth 322 are provided on both the upper and lower surfaces of the paddle blade 321. The central points of all the vertical paddle teeth 322 in the same circle are on the same rotation circle. The cross-section of the vertical paddle tooth 322 is rectangular, and the connection line of its diagonal is tangent to the rotation circle where its center point is located. The cross-section of the vertical paddle tooth 322 is square, and several vertical paddle teeth 322 can be arranged at equal arc distances.

[0031] Through the design that the connection line of the diagonal of the vertical paddle tooth 322 is tangent to the rotation circle where its center point is located, it can be ensured that the shear angle of the vertical paddle tooth 322 is always perpendicular to the shear surface of the material during the rotational shearing process. During the rotation process, it shears the material like a sharp blade, and scrubs the particles through the two-side guiding shear surfaces 3, and guides the material to other vertical paddle teeth 322 on both sides or one side, so as to increase the scrubbing probability of the particles in the material with other vertical paddle teeth 322, improve the shearing and scrubbing effect, especially improve the shearing and scrubbing effect on fine particles.

[0032] The diameter of the through hole 4 is larger than the stirring diameter of the stirring blade 32. The first toothed blades 5 are arranged in a circumferential array on the inner wall of the through hole 4. The side of the first toothed blade 5 close to the stirring blade 32 has a toothed structure to improve the shearing and scrubbing effect.

[0033] A plurality of second toothed blades 6 are provided on both the upper and lower sides of the baffle 2. By providing the second toothed blades 6, the shearing and scrubbing effect is improved.

[0034] A third toothed blade 7 is provided above the stirring blade 32. The third toothed blade 7 is connected to the stirring shaft 31. By providing the third toothed blade 7, the fluidity in the radial direction is increased, that is, the fluidity in the radial direction of each shearing area is improved to improve the shearing effect. It is a blade with a toothed structure, which can further improve the shearing effect.

[0035] Embodiment 2:

[0036] As Figure 1 and Figures 5-6 shown, inclined baffles 8 are arranged in a circumferential array at the inner wall of the cylinder 1. The inclined baffles 8 are used to guide the material to the central area. The angle between the inclined baffle 8 and the radial direction of the cylinder 1 is preferably between 30 and 60 degrees. Shearing teeth 81 are provided on at least one side of the inclined baffle 8. Preferably, the shearing teeth 81 are provided on the side of the inclined baffle 8 close to the cylinder 1, which can avoid forming a flow dead angle with the inner wall of the cylinder 1, that is, flow through the gaps of the shearing teeth 81; the shearing teeth 81 can also be provided on both sides to improve the shearing effect.

[0037] In the prior art, a toothed plate is also provided on the inner wall of the cylinder 1 to improve the shearing ability, but generally it is arranged perpendicular to the inner wall of the cylinder 1, and it cannot effectively guide the material to the stirring component at the center.

[0038] The above are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. A high-efficiency, high-scrubbing reformer, comprising a reformer body, wherein the reformer body comprises a barrel (1), a stirring assembly and at least one baffle (2) arranged in the barrel (1), wherein the stirring assembly comprises a stirring shaft (31) and at least one set of stirring blades (32), characterized in that: A through hole (4) is provided at the center of the baffle (2), a stirring blade (32) is provided in the through hole (4), the stirring blade (32) is arranged corresponding to the through hole (4), and the stirring blade (32) stirs and shears the material passing through the through hole (4); The stirring blade (32) comprises a paddle (321) and a plurality of vertical paddle teeth (322) arranged on the paddle (321), wherein the vertical paddle teeth (322) have at least one shear angle (324), and both sides of the shear angle (324) have guide shear surfaces (323), and the guide shear surfaces (323) are used for scrubbing and guiding materials to both sides, so as to increase the probability of the materials being scrubbed by other vertical paddle teeth (322); The blade (321) has a plurality of vertical paddle teeth (322) arranged at the same center of a circle, the center points of all the vertical paddle teeth (322) on the same circle are located on the same rotating circle, the cross section of the vertical paddle teeth (322) is a rectangle, and the line connecting the diagonals thereof is tangent to the rotating circle where the center points thereof are located. The diameter of the through hole (4) is larger than the stirring diameter of the stirring blade (32), and a first toothed blade (5) is arranged in a circumferential array on the inner wall of the through hole (4); A plurality of second tooth-shaped blades (6) are provided on both the upper and lower sides of the baffle (2); A third toothed blade (7) is provided above the stirring blade (32), and the third toothed blade (7) is connected to the stirring shaft (31).

2. A high-efficiency, high-scrubbing reformer according to claim 1, characterized in that: The cross section of the vertical paddle tooth (322) is square.

3. A high-efficiency, high-scrubbing reformer according to claim 1, characterized in that: A plurality of vertical paddle teeth (322) are disposed on both the upper and lower surfaces of the paddle (321).

4. A high-efficiency, high-scrubbing reformer according to any one of claims 1 to 3, characterized in that: The inner wall of the cylinder (1) is provided with a circumferential array of inclined baffles (8), and the inclined baffles (8) are used to guide the material to the central area.

5. A high-efficiency, high-scrubbing reformer according to claim 4, characterized in that: At least one side of the inclined baffle (8) is provided with shearing teeth (81).

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