CN219400522U - Hydrocyclone for classifying fine-fraction light minerals - Google Patents
Hydrocyclone for classifying fine-fraction light minerals Download PDFInfo
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- CN219400522U CN219400522U CN202320867746.7U CN202320867746U CN219400522U CN 219400522 U CN219400522 U CN 219400522U CN 202320867746 U CN202320867746 U CN 202320867746U CN 219400522 U CN219400522 U CN 219400522U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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Abstract
A hydrocyclone for classifying fine fraction light minerals belongs to the technical field of mineral separation, and the device comprises an upper cylindrical section, a hollow cone, a conical cylindrical composite underflow pipe and a conical screen; the upper cylindrical section comprises a round square pipe, a large-diameter semicircular flow guiding square pipe, a small-diameter semicircular flow guiding square pipe, a hollow cylinder, a special-shaped flange cover and an overflow pipe, wherein one end of the large-diameter semicircular flow guiding square pipe is connected with the round square pipe, the other end of the large-diameter semicircular flow guiding square pipe is connected with the small-diameter semicircular flow guiding square pipe, and the other end of the small-diameter semicircular flow guiding square pipe is communicated with the outer surface of the hollow cylinder in a tangential manner; the overflow pipe is inserted into the special-shaped flange cover, and the conical screen mesh installation device is arranged in the overflow pipe. The utility model can improve the classification efficiency of fine-fraction light minerals, prevent the generation of short-circuit flow by screwing into a material section, and simultaneously prevent the generation of circulating flow in the cyclone by the screen in the cavity, thereby reducing the content of coarse particles in overflow products.
Description
Technical Field
The utility model relates to the technical field of mineral separation, in particular to a hydrocyclone for classifying fine-fraction light minerals.
Background
In the field of mineral processing, a hydrocyclone is a device for solid-solid classification, which is suitable for classification operation of fine-particle-size minerals, and water is usually used as a separation medium. After the ore pulp enters the hydrocyclone, the classification of the materials is realized by utilizing centrifugal inertia force in the rotary flow, fine-fraction light materials flow out from an overflow pipe, and coarse-fraction materials are discharged from a sand setting port.
The short-circuit flow and the circulating flow generated during classification of the hydrocyclone are two important factors affecting the mineral classification effect. The generation of short-circuit flow enables minerals to be directly discharged from the overflow port after being fed from the feed inlet, and classification is not carried out; when circulating through more, fine fraction light minerals that have entered the overflow zone are caused to reenter the underflow zone, reducing the efficiency of classification.
Disclosure of Invention
In order to solve the problem of damage of short-circuit flow and circulating flow in the prior art, the utility model provides a hydrocyclone for classifying fine-fraction light minerals, which is provided with a spiral flow guide pipe capable of realizing pre-layering on ore pulp, so that the possibility of short-circuit flow is reduced; the cyclone is internally provided with a conical screen mesh which prevents the generation of circulating flow near the zero-speed envelope surface.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides the following technical scheme for realizing the purpose: a hydrocyclone for classifying fine-fraction light minerals comprises an upper cylindrical section, a hollow cone, a conical cylindrical composite underflow pipe and a conical screen;
the upper cylindrical section comprises a round square tube, a large-diameter semicircular flow guiding square tube, a small-diameter semicircular flow guiding square tube, a hollow cylinder, a special-shaped flange cover and an overflow tube, wherein the round end of the round square tube is a feed inlet, a round flange is matched with the round flange, and a rectangular flange is matched with the other end of the round square tube; one end of the large-diameter semicircular flow guiding square pipe is connected with a rectangular flange matched with the round square pipe, the other end of the large-diameter semicircular flow guiding square pipe is connected with a rectangular flange matched with the small-diameter semicircular flow guiding square pipe through the rectangular flange, and the other end of the small-diameter semicircular flow guiding square pipe is communicated with the outer surface of the hollow cylinder in a tangential manner; the upper part of the hollow cylinder is connected with the special-shaped flange cover, the top of the hollow cylinder is closed, and the lower part of the hollow cylinder is matched with a circular flange; the overflow pipe is inserted into the center position of the special-shaped flange cover, the joint is welded, and the upper part of the overflow pipe is connected with a circular flange II; the hollow cone is a single cone angle, two ends of the hollow cone are provided with circular flanges, the upper circular flange III is connected with the lower circular flange III of the hollow cylinder, and the hollow inside is used as a main area for classifying materials; the conical screen is arranged in the hollow cylinder and the hollow conical body, the upper end of the conical screen is connected with the overflow pipe, and the inner position of the cyclone is close to a zero-speed envelope surface; the conical cylindrical composite bottom flow pipe is formed by welding a hollow cone and a hollow cylinder, and the large-diameter end of the conical section is connected with a circular flange in a matched mode and is connected with the circular flange at the lower end of the hollow cone.
Furthermore, the equipment takes a steel plate as a base plate, and a wear-resistant ceramic lining is internally attached.
Furthermore, all flange joints are matched with sealing rings.
Furthermore, the conical screen mesh and the overflow pipe are connected in a welding mode.
Further, the size of the sieve mesh of the conical screen is 0.35mm, and the conical screen is made of wear-resistant stainless steel.
The utility model has the beneficial effects that:
the utility model can improve the classification efficiency of fine-fraction light minerals, prevent the generation of short-circuit flow by screwing into a material section, and simultaneously prevent the generation of circulating flow in the cyclone by the screen in the cavity, thereby reducing the content of coarse particles in overflow products.
Drawings
FIG. 1 is a front view of an apparatus provided by the present utility model;
FIG. 2 is a left side view of the apparatus provided by the present utility model;
FIG. 3 is a top view of the apparatus provided by the present utility model;
FIG. 4 is an axial view of the apparatus provided by the present utility model;
fig. 5 is a cross-sectional view of the apparatus A-A provided by the present utility model.
Reference numerals in the drawings of the specification include:
1. round flange I, 2, round square tube, 3, rectangular flange, 4, major diameter semi-circular water conservancy diversion side pipe, 5, minor diameter semi-circular water conservancy diversion side pipe, 6, hollow cylinder, 7, overflow pipe, 8, round flange II, 9, round flange III, 10, hollow cone, 11, round flange IV, 12, conical cylinder composite bottom flow pipe, 13, conical screen cloth, 14, dysmorphism flange cover.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and the expressions of relatively coarse particles and relatively fine particles are described herein: the median particle size of the particle population in the pulp is defined as d50, with relatively coarse particles being the particle population having a particle size greater than d75 and relatively fine particles being the particle population having a mineral particle size less than d 25.
As shown in fig. 1 to 5, a hydrocyclone for classifying fine fraction light minerals comprises an upper cylindrical section, a hollow cone, a conical cylindrical composite underflow pipe and a conical screen; the equipment takes a steel plate as a base plate, and a wear-resistant ceramic lining is internally attached.
The upper cylindrical section comprises a round square pipe 2, a large-diameter semicircular flow guiding square pipe 4, a small-diameter semicircular flow guiding square pipe 5, a hollow cylinder, a special-shaped flange cover 14 and an overflow pipe 7, wherein the round end of the round square pipe 2 is a feeding hole, a round flange 1 is matched with the round flange, and a rectangular flange 3 is matched with the other end of the round square pipe; one end of a large-diameter semicircular flow guiding square tube 4 is matched with a rectangular flange 3 on the dome square tube 2, the other end of the large-diameter semicircular flow guiding square tube is connected with the rectangular flange 3 matched with a small-diameter semicircular flow guiding square tube 5 through the rectangular flange 3, the large-diameter semicircular flow guiding square tube is fastened with a nut through a bolt, the other end of the small-diameter semicircular flow guiding square tube 5 is tangent to the outer surface of the hollow cylinder 6 and communicated with the outer surface, and the joint is welded; the upper part of the hollow cylinder 6 is connected with a special-shaped flange cover 14, the top of the hollow cylinder is closed, and the lower part of the hollow cylinder is matched with a circular flange III 9; the overflow pipe 7 is inserted into the center position of the special-shaped flange cover 14, the joint is welded, and the upper part of the overflow pipe 7 is connected with the circular flange II 8; the hollow cone 10 is a single cone angle, the upper end of the hollow cone is provided with a circular flange III 9, the lower end of the hollow cone is provided with a circular flange IV 11, the circular flange III 9 at the upper end is connected with the circular flange III 9 at the lower part of the hollow cylinder, and the hollow cone is fastened with a nut through a bolt, so that the hollow inside is used as a main area for classifying materials; the conical screen 13 is arranged in the cyclone, the position of the conical screen is close to the zero-speed enveloping surface, the upper end of the conical screen is connected with the overflow pipe 7 through welding, the size of a screen hole of the conical screen 13 is 0.35mm, and the conical screen is made of wear-resistant stainless steel; the conical cylindrical composite bottom flow pipe 12 is formed by welding a hollow cone and a hollow cylinder, a circular flange IV 11 is connected with a circular flange IV 11 at the lower end of the hollow cone in a matched mode at the large diameter end of the conical section, and the joint is fastened by bolts and nuts. In order to ensure the sealing performance, all flange joints are matched with sealing rings.
The use process of the hydrocyclone for classifying fine-fraction light minerals is as follows:
the ore pulp is injected from the round end of the round square pipe 2, the ore pulp is fed into the cyclone through the spiral feeding section, and when the ore pulp flows in the large-diameter semicircular flow guiding square pipe 4 and the small-diameter semicircular flow guiding square pipe 5, minerals are layered in advance according to density and granularity under the action of centrifugal force, so that the generation of short-circuit flow in the hydrocyclone is prevented. After the ore pulp enters the hollow cylinder 6 and the hollow cone 10 in the cyclone cavity, the ore pulp generates a trend of outward movement under the action of centrifugal force, axial and radial flow speeds can be formed, when the ore pulp continues to descend, the flow section gradually decreases, the inner ore pulp moves upwards in turn, fine-particle-grade light materials are discharged by the overflow pipe 7, and coarse-particle-grade heavy materials are discharged by the conical cylinder composite underflow pipe 12.
In the classifying process of the cyclone, a zero-speed envelope surface is generated in the ore pulp, the zero-speed envelope surface is upward at the inner axial speed, the zero-speed envelope surface is downward at the outer axial speed, after the conical screen 13 is added, the generation of a circulating flow can be blocked, fine-particle-grade light materials which have entered into the zero-speed envelope surface are prevented from being returned to the outside of the zero-speed envelope surface again under the influence of the circulating flow, and are discharged from the conical cylindrical composite underflow pipe 12, and coarse-particle-grade heavy materials which have entered the outside of the zero-speed envelope surface are prevented from entering overflow. Meanwhile, the conical screen 13 can prevent some minerals with oversized granularity from entering overflow, so that the classification efficiency of the hydrocyclone is improved.
Claims (5)
1. A hydrocyclone for classifying fine-fraction light minerals is characterized by comprising an upper cylindrical section, a hollow cone, a conical cylindrical composite underflow pipe and a conical screen; the upper cylindrical section comprises a round square tube, a large-diameter semicircular flow guiding square tube, a small-diameter semicircular flow guiding square tube, a hollow cylinder, a special-shaped flange cover and an overflow tube, wherein the round end of the round square tube is a feed inlet, a round flange is matched with the round flange, and a rectangular flange is matched with the other end of the round square tube; one end of the large-diameter semicircular flow guiding square pipe is connected with a rectangular flange matched with the round square pipe, the other end of the large-diameter semicircular flow guiding square pipe is connected with a rectangular flange matched with the small-diameter semicircular flow guiding square pipe through the rectangular flange, and the other end of the small-diameter semicircular flow guiding square pipe is communicated with the outer surface of the hollow cylinder in a tangential manner; the upper part of the hollow cylinder is connected with the special-shaped flange cover, the top of the hollow cylinder is closed, and the lower part of the hollow cylinder is matched with a circular flange; the overflow pipe is inserted into the center position of the special-shaped flange cover, the joint is welded, and the upper part of the overflow pipe is connected with a circular flange II; the hollow cone is a single cone angle, two ends of the hollow cone are provided with circular flanges, the upper circular flange III is connected with the lower circular flange III of the hollow cylinder, and the hollow inside is used as a main area for classifying materials; the conical screen is arranged in the hollow cylinder and the hollow conical body, the upper end of the conical screen is connected with the overflow pipe, and the inner position of the cyclone is close to a zero-speed envelope surface; the conical cylindrical composite bottom flow pipe is formed by welding a hollow cone and a hollow cylinder, and the large-diameter end of the conical section is connected with a circular flange in a matched mode and is connected with the circular flange at the lower end of the hollow cone.
2. The hydrocyclone for classifying fine fraction light minerals according to claim 1, wherein the apparatus comprises a steel plate as a base plate and an inner wear-resistant ceramic lining is provided.
3. A hydrocyclone for classifying fine fraction light minerals according to claim 1, wherein all flange connections are provided with sealing rings.
4. A hydrocyclone for classifying fine fraction light minerals according to claim 1, wherein the conical screen is welded to the overflow pipe.
5. A hydrocyclone for classifying fine fraction light minerals according to claim 1, wherein the conical screen mesh size is 0.35mm and the material is abrasion resistant stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320867746.7U CN219400522U (en) | 2023-04-18 | 2023-04-18 | Hydrocyclone for classifying fine-fraction light minerals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320867746.7U CN219400522U (en) | 2023-04-18 | 2023-04-18 | Hydrocyclone for classifying fine-fraction light minerals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219400522U true CN219400522U (en) | 2023-07-25 |
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ID=87242214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320867746.7U Active CN219400522U (en) | 2023-04-18 | 2023-04-18 | Hydrocyclone for classifying fine-fraction light minerals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219400522U (en) |
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2023
- 2023-04-18 CN CN202320867746.7U patent/CN219400522U/en active Active
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