Hydrocyclone for mineral separation and hydraulic mineral separation method

Abstract

The invention relates to the technical field of energy-saving mine beneficiation, and discloses a hydrocyclone for beneficiation and a separation method for hydraulic beneficiation. According to the ore dressing requirement, the distance between the top-layer fixed plate and the bottom-layer movable plate can be adjusted through synchronous stretching and retracting of the movable ends of all the telescopic hydraulic cylinders, the height of the separation adjusting part is adjusted, and connection and disconnection of middle discharging pipes of all the telescopic units located at the same height are selectively controlled; therefore, in actual use, on the premise that the equipment is not replaced, the mineral separation range of the equipment can be changed, and intermediate ores with the granularity between tailings and overflow particle sizes can be selectively collected through on-off control of the discharging pipe, so that more precise separation is performed, and the separation efficiency is improved. And the influence of intermediate ores gathered in the middle on the specific separation process can be avoided, the addition of a separation stage of a hydrocyclone is reduced, and the use of water resources can be effectively saved.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving mine beneficiation, and in particular to a hydraulic cyclone for beneficiation and a hydraulic beneficiation separation method. Background Art

[0002] A hydrocyclone is a device that uses centrifugal force to separate particles. It is widely used in the classification, concentration and dehydration of slurry in mining processing. With its efficient classification ability and compact structure, the hydrocyclone has become an indispensable and important tool in the mineral processing process. The working principle of the hydrocyclone is based on the action of centrifugal force. Driven by pressure, the slurry enters the cyclone shell along the tangential direction through the feed pipe, forming a rotary motion. In this process, the coarse particles or particles with high density in the slurry are thrown to the periphery of the cyclone due to the large centrifugal force, and finally discharged through the bottom sand settling nozzle; while the fine particles, due to the small centrifugal force, move upward with the liquid flow and are discharged through the overflow pipe.

[0003] The design and manufacture of hydrocyclones have been continuously optimized to form a variety of models, each with its own unique characteristics: XC I type: adopts a three-dimensional volute feeding structure to achieve circumferential and axial feeding, eliminates turbulent interference after the material enters the cyclone, and improves the classification efficiency. Its unique feed port wedge adjustment device can quickly adjust the cyclone inlet size in an online state, further improving the classification effect. XC II type: adopts an involute feeding method to reduce the turbulence of the material when it enters the cyclone, making the movement of the fluid in the cyclone more stable and improving the separation performance. Its column cone section length ratio and overflow pipe insertion depth are reasonable, which is particularly suitable for classification operations. XC III type: It has a specially designed fishtail device outside the sand settling nozzle and a specially designed siphon device on the top of the overflow box. By adjusting the siphon device, a higher underflow concentration and a lower overflow concentration can be obtained. Its overflow can be adjusted to almost pure water, and the underflow concentration can reach up to 85%. XC IV type: equipped with a tightening sleeve, which can accurately adjust the resistance of the sand settling nozzle, thereby more accurately adjusting the classification index of the cyclone. Its structural design is reasonable and is particularly suitable for the classification and dehydration of fine-grained materials.

[0004] Hydrocyclones separate coarse particles from fine particles through centrifugal force, improving the efficiency of mineral processing. In particular, XC I and XC II hydrocyclones have remarkable classification effects due to their unique feed structure and reasonable design ratio. The siphon device and fishtail device of XC III hydrocyclone make it perform well in concentration operations, and the bottom flow concentration can reach 85%. Slurry dewatering is an indispensable link. XC IV hydrocyclone is particularly suitable for dewatering of fine-grained materials. Its compact sleeve design makes the dewatering effect more precise and the fluctuation of classification indicators is small.

[0005] In the use of conventional hydrocyclones, since the size of the hydrocyclones is mostly fixed, the sorting size of the hydrocyclones is fixed, and multi-stage sorting requires multiple hydrocyclones of different specifications for continuous sorting. In the entire sorting process, each additional sorting stage of a hydrocyclone causes the amount of water used to double, thereby wasting a large amount of water resources and making it difficult to meet the needs of energy-saving mineral processing. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a hydraulic cyclone for mineral processing and a hydraulic mineral processing separation method.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A hydrocyclone for ore dressing, comprising an ore distribution mechanism, an overflow collection cylinder, a sediment collection cylinder, a plurality of cyclone separators and a plurality of intermediate ore collection cylinders, wherein the plurality of cyclone separators are arranged around the outside of the ore distribution mechanism, the overflow collection cylinder is arranged on the outside of the bottom end of the ore distribution mechanism, and the sediment collection cylinder is arranged on the outside of the overflow collection cylinder; each cyclone separator comprises an ore overflow part, a separation adjustment part and a sediment discharge part, the bottom end of each ore overflow part and the top end of each separation adjustment part are respectively fixed between a top fixed plate, the bottom end of each separation adjustment part and the top end of each sediment discharge part are respectively fixed between a bottom movable plate; a plurality of telescopic hydraulic cylinders are arranged between the top fixed plate and the bottom movable plate, and the movable end of each telescopic hydraulic cylinder is connected to the bottom movable plate The plates are fixed between each other, and the movable ends of each of the telescopic hydraulic cylinders are synchronously telescopic to adjust the distance between the top fixed plate and the bottom movable plate, so as to adjust the total length of the separation adjustment part; the separation adjustment part includes a plurality of telescopic units, and the length of each of the telescopic units can be synchronously telescoped as the distance between the top fixed plate and the bottom movable plate increases or decreases, and the telescopic units are respectively connected with each of the intermediate ore collecting cylinders through an intermediate discharge pipe; the ore feeding distribution mechanism can input ore slurry into each of the ore feeding overflow parts through the feed pipe, and the top of each of the ore feeding overflow parts is respectively connected with the overflow collecting cylinder through an overflow pipe; in the process that the sand discharge part moves up and down with the bottom movable plate, the bottom end of the sand discharge part always extends into the sand collecting cylinder.

[0009] Preferably, the ore feeding overflow part also includes an ore feeding cylinder, the feed pipe extends into the interior of the ore feeding cylinder along the tangent direction of the inner wall of the ore feeding cylinder, the overflow pipe penetrates into the interior of the ore feeding cylinder and extends below the feed pipe, and the bottom end of the ore feeding cylinder passes through the bottom surface of the top fixed plate.

[0010] Preferably, the sand discharge part includes a conical collecting cylinder and a sand guide pipe, the top end of the conical collecting cylinder passes through the top surface of the bottom movable plate, the top end of the conical collecting cylinder is connected to the top end of the sand guide pipe, and the bottom end of the sand guide pipe extends into the interior of the sand collecting cylinder.

[0011] Preferably, the separation and adjustment part includes a top mounting sleeve and a bottom mounting sleeve, the top of the top mounting sleeve is connected and sealed to the bottom end of the ore feed tube, and the bottom end of the bottom mounting sleeve is connected and sealed to the top of the conical collecting tube; the two adjacent telescopic units are connected and sealed to each other, the top of the telescopic unit located at the topmost end is connected and sealed to the bottom end of the top mounting sleeve, and the bottom end of the telescopic unit located at the lowest end is connected and sealed to the top of the bottom mounting sleeve.

[0012] Preferably, the telescopic units include an upper connecting sleeve, a central telescopic sleeve and a lower connecting sleeve, and both ends of the central telescopic sleeve are respectively connected and sealed to the upper connecting sleeve and the lower connecting sleeve, and each of the central telescopic cylinders can be telescoped; in the process of the sediment discharge part moving up and down with the bottom movable plate, the lengths of each of the central telescopic cylinders are equal at any time.

[0013] Preferably, a plurality of upper connecting blocks are arranged on the outer side of the bottom of the upper connecting sleeve, and a plurality of lower connecting blocks are arranged on the outer side of the top of the lower connecting sleeve, and each of the lower connecting blocks is respectively connected to each of the upper connecting blocks through a telescopic guide column, and a stabilizing spring is arranged on the outer side of the telescopic guide column, and both ends of the stabilizing spring are respectively connected and fixed to the corresponding lower connecting block and the corresponding upper connecting block; the free length and elastic coefficient of each of the stabilizing springs of each of the telescopic units are equal.

[0014] Preferably, each of the upper connecting sleeves is provided with an internal baffle, and the lower connecting sleeve is provided with a wear-resistant inner cylinder, the wear-resistant inner cylinder is provided with an output groove, the open end of the intermediate discharge pipe is opened inside the output groove, and the internal baffle can extend into the output groove; during the extension of the central telescopic cylinder, the internal baffle can slide inside the output groove, and when the central telescopic cylinder is extended to the longest, the open end of the intermediate discharge pipe is opened.

[0015] Preferably, a closing valve is provided inside the open end of the intermediate discharge pipe, the height of one end of the intermediate discharge pipe extending into the telescopic unit is higher than the height of a section extending into the corresponding intermediate ore collecting cylinder, and the closing valves of each telescopic unit at the same height can be opened and closed at the same time.

[0016] Preferably, the ore feeding distribution mechanism comprises a central input pipe and a distribution cylinder, the bottom end of the distribution cylinder is connected to the central input pipe, the feed pipes of each cyclone separator respectively extend into the cylindrical inner wall of the distribution cylinder, and the ore slurry input from the central input pipe can enter the ore feeding overflow part of each cyclone separator from the distribution cylinder; the bottom ends of the overflow collecting cylinder, the sedimentation collecting cylinder, and several of the intermediate ore collecting cylinders are all inclined downward.

[0017] A method for hydraulic mineral separation, characterized in that the above-mentioned hydrocyclone for mineral separation is used, comprising the following steps:

[0018] First, the height of the separation adjustment part of each cyclone separator is determined according to the demand, and the distance between the top fixed plate and the bottom movable plate can be adjusted by synchronously extending and retracting the movable ends of each telescopic hydraulic cylinder to adjust the height of the separation adjustment part;

[0019] According to the needs of mineral processing, the middle discharge pipes of each telescopic unit at the same height are selectively controlled to be on and off;

[0020] The ore pulp is input from the ore distribution mechanism and evenly distributed to the ore feeding overflow part of each cyclone separator. After separation by each cyclone separator, the ore pulp of each level screened and separated is output from the overflow collection tube, the sedimentation collection tube, and several intermediate ore collection tubes respectively.

[0021] Compared with the prior art, the present invention provides a hydrocyclone for mineral processing and a method for hydraulic mineral processing, which has the following beneficial effects:

[0022] 1. This kind of ore dressing hydrocyclone can adjust the distance between the top fixed plate and the bottom movable plate, adjust the height of the separation adjustment part, and selectively control the on-off of the intermediate discharge pipes of each telescopic unit at the same height according to the needs of ore dressing by synchronously extending and retracting the movable ends of each telescopic hydraulic cylinder; thus, in actual use, the ore dressing separation range of the equipment can be changed without replacing the equipment, and the intermediate ore with a particle size between the tailings and the overflow particle size can be selectively collected by controlling the on-off of the intermediate discharge pipe, so as to perform more precise separation, avoid the intermediate ore accumulated in the middle from affecting the specific separation process, reduce the addition of the hydrocyclone in the separation stage, and effectively save the use of water resources.

[0023] 2. In the ore dressing hydrocyclone, during the process of the sediment discharge part moving up and down with the bottom movable plate, since the free length and elastic coefficient of each stabilizing spring of each telescopic unit are equal, and under the setting of each telescopic guide column, it is ensured that each stabilizing spring can only be telescoped in the vertical direction, and the length of each central telescopic cylinder is equal, so as to ensure the synchronization of the telescopic expansion and contraction of each cyclone separator, and since the open end of the intermediate discharge pipe is opened inside the output slot, the internal baffle plate can extend into the output slot; during the extension of the central telescopic cylinder, the internal baffle plate can slide inside the output slot, and when the central telescopic cylinder is extended to the longest, the open end of the intermediate discharge pipe is opened, so that the open ends of each intermediate discharge pipe located at different heights can discharge the corresponding intermediate slurry, and the closing valves of each telescopic unit located at the same height can be opened and closed at the same time, so as to selectively discharge the intermediate slurry of each height layer, and effectively separate and discharge the intermediate ore, so as to effectively increase the separation level and separation efficiency of the cyclone separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the three-dimensional structural schematic diagrams of a hydrocyclone for ore dressing of the present invention;

[0025] Figure 2 This is a second schematic diagram of the three-dimensional structure of a hydrocyclone for mineral processing according to the present invention;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of an ore feeding distribution mechanism of a hydrocyclone for ore dressing of the present invention;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of several cyclone separators of a hydrocyclone for mineral processing according to the present invention;

[0028] Figure 5 This is one of the three-dimensional structural schematic diagrams of a cyclone separator of a hydrocyclone for ore dressing of the present invention;

[0029] Figure 6 The second schematic diagram of the three-dimensional structure of a cyclone separator of a hydrocyclone for mineral processing of the present invention;

[0030] Figure 7 It is a three-dimensional structural schematic diagram of a telescopic unit of a hydrocyclone for mineral processing according to the present invention;

[0031] Figure 8 It is a cross-sectional schematic diagram of a telescopic unit of a hydrocyclone for mineral processing according to the present invention;

[0032] Fig. 9 For the present invention Figure 8 An enlarged schematic diagram of part A.

[0033] In the figure: 1. ore distribution mechanism; 11. central input pipe; 12. distribution cylinder; 2. overflow collection cylinder; 3. sediment collection cylinder; 4. intermediate ore collection cylinder; 5. ore feeding overflow part; 51. feed pipe; 52. overflow pipe; 53. ore feeding cylinder; 6. separation adjustment part; 61. telescopic unit; 611. intermediate discharge pipe; 612. upper connecting sleeve; 6121. internal baffle; 613. central telescopic cylinder; 614. lower connecting sleeve; 6141. wear-resistant inner cylinder; 6142. output groove; 615. upper connecting block; 616. lower connecting block; 617. telescopic guide column; 618. stabilizing spring; 62. top mounting sleeve; 63. bottom mounting sleeve; 7. sediment discharge part; 71. conical collection cylinder; 72. sediment guide pipe; 8. top fixed plate; 81. telescopic hydraulic cylinder; 9. bottom movable plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] As introduced in the background technology, the existing technology has deficiencies. In order to solve the above technical problems, the present application proposes a hydraulic cyclone for mineral processing and a hydraulic mineral processing separation method.

[0036] Embodiment 1:

[0037] See also Figure 1-Figure 8A hydrocyclone for ore dressing comprises an ore distribution mechanism 1, an overflow collecting cylinder 2, a sediment collecting cylinder 3, a plurality of cyclone separators and a plurality of intermediate ore collecting cylinders 4, wherein the plurality of cyclone separators are arranged around the outside of the ore distribution mechanism 1, the overflow collecting cylinder 2 is arranged outside the bottom end of the ore distribution mechanism 1, and the sediment collecting cylinder 3 is arranged outside the overflow collecting cylinder 2; each cyclone separator comprises an ore feeding overflow part 5, a separation adjustment part 6 and a sediment discharge part 7, the bottom end of each ore feeding overflow part 5 and the top end of each separation adjustment part 6 are respectively fixed between a top fixed plate 8, the bottom end of each separation adjustment part 6 and the top end of each sediment discharge part 7 are respectively fixed between a bottom movable plate 9; a plurality of telescopic hydraulic cylinders 81 are arranged between the top fixed plate 8 and the bottom movable plate 9, and the movable end of each telescopic hydraulic cylinder 81 is connected to the bottom movable plate 9. The movable plates 9 are fixed between each other, and the movable ends of each telescopic hydraulic cylinder 81 are synchronously telescopic to adjust the distance between the top fixed plate 8 and the bottom movable plate 9, so as to adjust the total length of the separation adjustment part 6; the separation adjustment part 6 includes a plurality of telescopic units 61, and the length of each telescopic unit 61 can be synchronously telescoped as the distance between the top fixed plate 8 and the bottom movable plate 9 increases or decreases, and the telescopic units 61 are respectively connected with each intermediate ore collecting cylinder 4 through the intermediate discharge pipe 611; the ore feeding distribution mechanism 1 can respectively input ore slurry into each ore feeding overflow part 5 through the feed pipe 51, and the top of each ore feeding overflow part 5 is respectively connected with the overflow collecting cylinder 2 through the overflow pipe 52; in the process of the sand discharge part 7 moving up and down with the bottom movable plate 9, the bottom end of the sand discharge part 7 always extends into the sand collecting cylinder 3.

[0038] First, according to the needs, the height of the separation adjustment part 6 of each cyclone separator is determined, and the movable end of each telescopic hydraulic cylinder 81 is synchronously telescoped to adjust the distance between the top fixed plate 8 and the bottom movable plate 9, and adjust the height of the separation adjustment part 6; according to the needs of ore dressing, the middle discharge pipe 611 of each telescopic unit 61 at the same height is selectively controlled to be on and off; so that in actual use, the ore dressing separation range of the equipment can be changed without replacing the equipment, and the middle ore with a particle size between the tailings and the overflow particle size can be selectively collected by controlling the on and off of the middle discharge pipe 611, so as to perform more precise separation, and also avoid the middle ore gathering in the middle from affecting the specific separation process, reduce the addition of the hydrocyclone in the sorting stage, and effectively save the use of water resources. The slurry is input from the ore feeding distribution mechanism 1 and evenly distributed to the ore feeding overflow part 5 of each cyclone separator, and after separation by each cyclone separator, the slurry of each level screened and separated is output from the overflow collection tube 2, the sedimentation collection tube 3, and several middle ore collection tubes 4 respectively.

[0039] Embodiment 2:

[0040] See also Figure 1-Figure 6The difference from the above embodiment is that the ore feeding overflow part 5 also includes an ore feeding cylinder 53, the feed pipe 51 extends to the inside of the ore feeding cylinder 53 along the tangent direction of the inner wall of the ore feeding cylinder 53, the overflow pipe 52 penetrates into the inside of the ore feeding cylinder 53 and extends below the feed pipe 51, and the bottom end of the ore feeding cylinder 53 passes through the bottom surface of the top fixed plate 8.

[0041] The sediment discharge part 7 includes a conical collecting cylinder 71 and a sediment guide pipe 72. The top end of the conical collecting cylinder 71 passes through the top surface of the bottom movable plate 9. The top end of the conical collecting cylinder 71 is connected to the top end of the sediment guide pipe 72. The bottom end of the sediment guide pipe 72 extends into the interior of the sediment collecting cylinder 3.

[0042] Therefore, when in use, through the setting of the ore feeding overflow part 5, the slurry is input from the feed pipe 51 into the interior of the ore feeding tube 53 along the tangent direction of the inner wall of the ore feeding tube 53, so that through the setting of the entire cyclone separator, the slurry in the overflow range can be output from the overflow pipe 52 to the overflow collecting tube 2, and the slurry in the tailings range gradually falls and is collected along the conical collecting tube 71, and is input into the interior of the sand collecting tube 3 through the bottom end of the sand guide pipe 72, thereby completing the effective separation of tailings and overflow.

[0043] Embodiment three:

[0044] See also Figure 1-Figure 8 , which is different from the above-mentioned embodiment, is that the separation adjustment part 6 comprises a top mounting sleeve 62 and a bottom mounting sleeve 63, the top of the top mounting sleeve 62 is connected and sealed to the bottom end of the ore feeding tube 53, and the bottom end of the bottom mounting sleeve 63 is connected and sealed to the top end of the conical collecting tube 71; the two adjacent telescopic units 61 are connected and sealed to each other, the top end of the telescopic unit 61 at the topmost end is connected and sealed to the bottom end of the top mounting sleeve 62, and the bottom end of the telescopic unit 61 at the lowest end is connected and sealed to the top end of the bottom mounting sleeve 63, thereby effectively ensuring the sealing of each position of the entire cyclone separator and ensuring that the slurry is stably separated inside the cyclone separator.

[0045] The telescopic units 61 include an upper connecting sleeve 612, a central telescopic tube 613 and a lower connecting sleeve 614. The two ends of the central telescopic tube 613 are respectively connected and sealed with the upper connecting sleeve 612 and the lower connecting sleeve 614, and each central telescopic tube 613 can be telescoped. In the process of the sediment discharge part 7 moving up and down with the bottom movable plate 9, the length of each central telescopic tube 613 is equal at any time.

[0046] A plurality of upper connecting blocks 615 are arranged on the outer side of the bottom of the upper connecting sleeve 612, and a plurality of lower connecting blocks 616 are arranged on the outer side of the top of the lower connecting sleeve 614. Each lower connecting block 616 is respectively connected to each upper connecting block 615 through a telescopic guide column 617. A stabilizing spring 618 is arranged on the outer side of the telescopic guide column 617. Both ends of the stabilizing spring 618 are respectively connected and fixed to the corresponding lower connecting block 616 and the corresponding upper connecting block 615; the free length and elastic coefficient of each stabilizing spring 618 of each telescopic unit 61 are equal.

[0047] An internal baffle 6121 is provided inside each upper connecting sleeve 612, and a wear-resistant inner cylinder 6141 is provided inside the lower connecting sleeve 614. The wear-resistant inner cylinder 6141 is provided with an output groove 6142. The open end of the intermediate discharge pipe 611 is provided inside the output groove 6142, and the internal baffle 6121 can extend into the output groove 6142. During the extension of the central telescopic cylinder 613, the internal baffle 6121 can slide inside the output groove 6142, and when the central telescopic cylinder 613 is extended to the longest, the open end of the intermediate discharge pipe 611 is opened.

[0048] A closing valve is provided inside the open end of the middle discharge pipe 611. The height of one end of the middle discharge pipe 611 extending into the telescopic unit 61 is higher than the height of a section extending into the corresponding middle ore collecting cylinder 4. The closing valves of each telescopic unit 61 at the same height can be opened and closed at the same time.

[0049] In actual use, when the sand discharge part 7 moves up and down with the bottom movable plate 9, since the free length and elastic coefficient of each stabilizing spring 618 of each telescopic unit 61 are equal, and under the setting of each telescopic guide column 617, it is ensured that each stabilizing spring 618 can only be telescoped in the vertical direction, and the length of each central telescopic cylinder 613 is equal, so as to ensure the synchronization of the telescoping of each cyclone separator, and since the opening end of the intermediate discharge pipe 611 is opened inside the output groove 6142, the internal baffle 6121 can extend into the output groove 6142; During the extension of the central telescopic cylinder 613, the internal baffle 6121 can slide inside the output groove 6142, and when the central telescopic cylinder 613 is extended to the longest, the open end of the intermediate discharge pipe 611 is opened, so that the open ends of the intermediate discharge pipes 611 located at different heights can discharge the corresponding intermediate slurry, and the closing valves of the telescopic units 61 located at the same height can be opened and closed at the same time, and the intermediate slurry at each height layer can be selectively discharged, and the intermediate ore can be effectively separated and discharged, so as to effectively increase the separation level and separation efficiency of the cyclone separator.

[0050] The ore feeding distribution mechanism 1 includes a central input pipe 11 and a distribution cylinder 12, the bottom end of the distribution cylinder 12 is connected to the central input pipe 11, and each feed pipe 51 of each cyclone separator extends into the cylindrical inner wall of the distribution cylinder 12 respectively, and the ore slurry input from the central input pipe 11 can enter the ore feeding overflow part 5 of each cyclone separator from the distribution cylinder 12 respectively; the bottom ends of the overflow collecting cylinder 2, the sedimentation collecting cylinder 3, and several intermediate ore collecting cylinders 4 are all inclined downward, so that when in use, through the setting of the distribution cylinder 12, the ore feeding overflow part 5 of each cyclone separator can be evenly provided with slurry, and the bottom ends of the overflow collecting cylinder 2, the sedimentation collecting cylinder 3, and several intermediate ore collecting cylinders 4 can be tilted downward to ensure the smoothness of the discharge of slurry of each grade.

[0051] Embodiment 4:

[0052] A method for hydraulic mineral separation, using a hydrocyclone for mineral separation as described in any one of Embodiments 1 to 3, comprising the following steps:

[0053] First, the height of the separation adjustment part 6 of each cyclone separator is determined according to the demand, and the distance between the top fixed plate 8 and the bottom movable plate 9 can be adjusted by synchronously extending and retracting the movable ends of each telescopic hydraulic cylinder 81, thereby adjusting the height of the separation adjustment part 6;

[0054] According to the needs of mineral processing, the middle discharge pipes 611 of each telescopic unit 61 at the same height are selectively controlled to be on and off;

[0055] The ore pulp is input from the ore distribution mechanism 1 and evenly distributed to the ore feeding overflow part 5 of each cyclone separator. After separation by each cyclone separator, the ore pulp of each level screened and separated is output from the overflow collection tube 2, the sedimentation collection tube 3, and several intermediate ore collection tubes 4 respectively.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrocyclone for mineral processing, characterized in that: The invention comprises an ore distribution mechanism (1), an overflow collection cylinder (2), a sediment collection cylinder (3), a plurality of cyclone separators and a plurality of intermediate ore collection cylinders (4), wherein the plurality of cyclone separators are arranged around the outside of the ore distribution mechanism (1), the overflow collection cylinder (2) is arranged outside the bottom end of the ore distribution mechanism (1), and the sediment collection cylinder (3) is arranged outside the overflow collection cylinder (2); Each cyclone separator comprises an ore-feeding overflow part (5), a separation adjustment part (6) and a sediment discharge part (7), the bottom end of each ore-feeding overflow part (5) and the top end of each separation adjustment part (6) are respectively fixed to a top fixed plate (8), and the bottom end of each separation adjustment part (6) and the top end of each sediment discharge part (7) are respectively fixed to a bottom movable plate (9); A plurality of telescopic hydraulic cylinders (81) are arranged between the top fixed plate (8) and the bottom movable plate (9), and the movable end of each telescopic hydraulic cylinder (81) is fixed to the bottom movable plate (9). The movable ends of each telescopic hydraulic cylinder (81) are synchronously telescoped to adjust the distance between the top fixed plate (8) and the bottom movable plate (9), thereby adjusting the total length of the separation adjustment portion (6); The separation adjustment part (6) comprises a plurality of telescopic units (61), the length of each telescopic unit (61) being able to be synchronously extended and retracted as the distance between the top fixed plate (8) and the bottom movable plate (9) increases or decreases, and each of the telescopic units (61) is connected to each of the intermediate ore collecting cylinders (4) through an intermediate discharge pipe (611); The ore feeding distribution mechanism (1) can input ore slurry into each of the ore feeding overflow parts (5) through a feeding pipe (51), and the top of each of the ore feeding overflow parts (5) is connected to the overflow collecting cylinder (2) through an overflow pipe (52); In the process of the sediment discharge part (7) moving up and down with the bottom movable plate (9), the bottom end of the sediment discharge part (7) always extends into the interior of the sediment collection tube (3).

2. The hydrocyclone for mineral processing according to claim 1, characterized in that: The ore feeding overflow part (5) also includes an ore feeding cylinder (53), the feed pipe (51) extends into the interior of the ore feeding cylinder (53) along the tangent direction of the inner wall of the ore feeding cylinder (53), the overflow pipe (52) penetrates into the interior of the ore feeding cylinder (53) and extends below the feed pipe (51), and the bottom end of the ore feeding cylinder (53) passes through the bottom surface of the top fixed plate (8).

3. The hydrocyclone for mineral processing according to claim 2, characterized in that: The sediment discharge part (7) comprises a conical collecting cylinder (71) and a sediment guide pipe (72), the top end of the conical collecting cylinder (71) passes through the top surface of the bottom movable plate (9), the top end of the conical collecting cylinder (71) is connected to the top end of the sediment guide pipe (72), and the bottom end of the sediment guide pipe (72) extends into the interior of the sediment collecting cylinder (3).

4. The hydrocyclone for mineral processing according to claim 3, characterized in that: The separation adjustment part (6) comprises a top mounting sleeve (62) and a bottom mounting sleeve (63), the top end of the top mounting sleeve (62) is connected and sealed to the bottom end of the ore feeding cylinder (53), and the bottom end of the bottom mounting sleeve (63) is connected and sealed to the top end of the conical collecting cylinder (71); Two adjacent telescopic units (61) are connected to each other and sealed, the top end of the telescopic unit (61) at the topmost end is connected to the bottom end of the top mounting sleeve (62) and sealed, and the bottom end of the telescopic unit (61) at the lowest end is connected to the top end of the bottom mounting sleeve (63) and sealed.

5. The hydrocyclone for mineral processing according to claim 4, characterized in that: The telescopic units (61) each comprise an upper connecting sleeve (612), a central telescopic tube (613) and a lower connecting sleeve (614); both ends of the central telescopic tube (613) are respectively connected and sealed to the upper connecting sleeve (612) and the lower connecting sleeve (614); each of the central telescopic tubes (613) is capable of telescoping; In the process of the sediment discharge part (7) moving up and down with the bottom movable plate (9), the lengths of the central telescopic cylinders (613) are equal at any time.

6. The hydrocyclone for mineral processing according to claim 5, characterized in that: A plurality of upper connecting blocks (615) are arranged on the outer side of the bottom of the upper connecting sleeve (612), and a plurality of lower connecting blocks (616) are arranged on the outer side of the top of the lower connecting sleeve (614). Each of the lower connecting blocks (616) is connected to each of the upper connecting blocks (615) via a telescopic guide column (617). A stabilizing spring (618) is arranged on the outer side of the telescopic guide column (617), and both ends of the stabilizing spring (618) are respectively connected and fixed to the corresponding lower connecting block (616) and the corresponding upper connecting block (615); The free length and elastic coefficient of each stabilizing spring (618) of each telescopic unit (61) are equal.

7. The hydrocyclone for mineral processing according to claim 6, characterized in that: Each of the upper connecting sleeves (612) is provided with an internal baffle (6121), the lower connecting sleeve (614) is provided with a wear-resistant inner cylinder (6141), the wear-resistant inner cylinder (6141) is provided with an output groove (6142), the open end of the intermediate discharge pipe (611) is provided inside the output groove (6142), and the internal baffle (6121) can extend into the output groove (6142); During the extension of the central telescopic tube (613), the internal baffle (6121) can slide inside the output slot (6142) and open the open end of the intermediate discharge pipe (611) when the central telescopic tube (613) is extended to its longest length.

8. The hydrocyclone for mineral processing according to claim 7, characterized in that: A closing valve is provided inside the open end of the intermediate discharge pipe (611); the height of one end of the intermediate discharge pipe (611) extending into the telescopic unit (61) is higher than the height of a section extending into the corresponding intermediate ore collecting cylinder (4); and the closing valves of the telescopic units (61) at the same height can be opened and closed at the same time.

9. The hydrocyclone for mineral processing according to claim 1, characterized in that: The ore feeding distribution mechanism (1) comprises a central input pipe (11) and a distribution cylinder (12); the bottom end of the distribution cylinder (12) is connected to the central input pipe (11); the feed pipes (51) of the cyclone separators extend into the cylindrical inner wall of the distribution cylinder (12); the ore slurry input from the central input pipe (11) can enter the ore feeding overflow portion (5) of each cyclone separator from the distribution cylinder (12); The bottom ends of the overflow collection tube (2), the sediment collection tube (3), and a plurality of the intermediate ore collection tubes (4) are all inclined downward.

10. A method for hydraulic mineral separation, characterized in that: Using a hydrocyclone for mineral processing as claimed in any one of claims 1 to 9, comprising the following steps: First, the height of the separation adjustment part (6) of each cyclone separator is determined according to the demand, and the movable end of each telescopic hydraulic cylinder (81) is synchronously extended and retracted to adjust the distance between the top fixed plate (8) and the bottom movable plate (9), thereby adjusting the height of the separation adjustment part (6); According to the needs of mineral processing, the middle discharge pipes (611) of the telescopic units (61) at the same height are selectively controlled to be on and off; The ore pulp is input from the ore feeding distribution mechanism (1) and evenly distributed to the ore feeding overflow parts (5) of each cyclone separator. After separation by each cyclone separator, the ore pulp of each level screened and separated is output from the overflow collection cylinder (2), the sedimentation collection cylinder (3), and a plurality of intermediate ore collection cylinders (4).

Images