Slurry making device of cylindrical ore washer and use method of slurry making device

Abstract

The invention discloses a cylindrical ore washer slurry making device and a using method thereof.The cylindrical ore washer slurry making device comprises an ore washer body, a slurry making section is arranged in the ore washer body and comprises a first slurry making ring, a second slurry making ring, a third slurry making ring, a fourth slurry making ring and a fifth slurry making ring, and each slurry making ring is provided with a plurality of composite lining plates and lining plate pressing plates; extension plates are arranged at the two ends of each composite lining plate, and every two adjacent composite lining plates and lining plate pressing plates are connected through T-shaped bolts and thickened trapezoidal nuts; by adopting the novel wear-resistant composite lining plate and the lining plate pressing plate made of the wear-resistant alloy material, the original flexible contact between ores and the rubber corrugated lining plate is changed into rigid contact between the ores and the alloy lining plate pressing plate; strong impact potential energy of large ores can be borne, mud on the ores can be vibrated to fall off, and the effect of diverging and cutting small mud pies is enhanced; therefore, the mud pie is difficult to accumulate, the mud accumulation condition is greatly improved, and the influence of mud accumulation on the ore washing effect is avoided.

Description

Technical Field

[0001] The present invention relates to the field of ore washing machines, and particularly to a pulp making device for a cylindrical ore washing machine and a using method thereof. Background Art

[0002] Karst accumulation type bauxite is characterized by many points, wide areas and a "chicken coop ore" distribution. Its mud content is quite high, ranging from 44.21% to 75.92%, with an average mud content of 63.5%. The clay plasticity index is on average 22.8, and it also contains a small amount of clay lumps, belonging to the type of difficult-to-wash ore. The surface of this bauxite is rough and uneven, with soil and clay attached, and it needs to be removed by means of strong flushing and scrubbing.

[0003] At first, the cylindrical ore washing machine used was equipped with a smooth arc-shaped rubber lining plate, and the pulp making effect in the pulp making section was poor. The rubber lining plate mainly played a role in protecting the equipment, and had a weak scrubbing effect on the ore, severely restricting the improvement of the ore washing efficiency. In view of this, an optimization and improvement was carried out. The smooth arc-shaped rubber lining plate was replaced with a polyurethane corrugated lining plate, and convex patterns were added to the corrugated lining plate to increase the roughness. After the transformation, the effective ore washing time of the ore in the pulp making section of the cylindrical ore washing machine was extended by 6.59 s, and the extension amplitude was 27.54%. This enabled the ore to be soaked and scrubbed more fully, the ore washing efficiency was increased by 12.69%, and the mud content of the ore washing product was reduced by 20.02%.

[0004] However, currently, the mud content of bauxite continues to rise, and the number of clay lumps is also increasing day by day. During the actual use process, a series of defects have emerged in the corrugated lining plate: First, the soft contact between the ore and the rubber lining plate is not conducive to the separation and shedding of the ore and the clay mud. Second, the ore is fed by a heavy plate feeder, with a large drop. It falls into the cylindrical ore washing machine through a funnel, and the ore dropping point is concentrated in the lining plate parts of the second and third circles. The impact force generated by large pieces of ore is large, resulting in rapid wear of the lining plates in these two circles, and the service life is only 4 - 6 months, while the service life of the lining plates in other parts can reach more than 1 year. Due to the short service life of the corrugated lining plate, the convex parts are quickly worn flat, resulting in a deterioration of the scrubbing effect in the pulp making section and being unable to meet the increasing bauxite ore washing requirements.

[0005] Therefore, a pulp making device for a cylindrical ore washing machine and a using method thereof are proposed to solve the problems existing in the prior art. Summary of the Invention

[0006] The object of the present invention is to provide a pulp-making device for a cylindrical ore washing machine and its usage method in view of the above problems. By adopting a new type of wear-resistant composite lining plate and a lining plate pressing plate made of wear-resistant alloy material, the original flexible contact between the ore and the rubber corrugated lining plate is changed to a rigid contact between the ore and the alloy lining plate pressing plate. And the second circle is the ore dropping point. The wear-resistant alloy lining plate pressing plate adopts an isosceles T-shaped structure with high strength and good impact toughness, can withstand the strong impact potential energy of large pieces of ore, and the clockwise arrangement increases the lifting potential energy, which is conducive to vibrating and shedding the mud on the ore, and also enhances the effect of dispersing and cutting small mud masses. It makes it difficult for the mud masses to accumulate, greatly improves the mud accumulation situation, and avoids affecting the ore washing effect due to mud accumulation. In order to achieve the above object of the invention, the technical solution adopted by the present invention is as follows:

[0007] According to one aspect of the present invention, there is provided a pulp-making device for a cylindrical ore washing machine and its usage method, including a washing machine body, wherein a pulp-making section is provided in the washing machine body, the pulp-making section includes five pulp-making circles, and the five pulp-making circles can be divided into a first pulp-making circle, a second pulp-making circle, a third pulp-making circle, a fourth pulp-making circle and a fifth pulp-making circle according to the sorting. A plurality of composite lining plates and lining plate pressing plates are provided on each pulp-making circle, and the plurality of composite lining plates and lining plate pressing plates on the same pulp-making circle are arranged alternately in a ring shape. Extension plates are provided at both ends of each composite lining plate, and the extension plates can be divided into an upper plate and a lower plate. The lining plate pressing plate is arranged on the upper plate, and the lower plate is located at the lower end of the upper plate of the adjacent composite lining plate. Adjacent two composite lining plates and lining plate pressing plates are connected by T-shaped bolts and thickened trapezoidal nuts.

[0008] Preferably, the shapes of the plurality of composite lining plates and lining plate pressing plates on the first pulp-making circle, the third pulp-making circle and the fifth pulp-making circle are the same. The top of the composite lining plate is inclined, and the angle between the top of the composite lining plate and the horizontal plane is the mud removal angle α, and the mud removal angle α is less than 30°. The cross-sectional shape of the lining plate pressing plate is a high L shape, with a net height of about 55 mm. The lining plate pressing plate fits the inclined high side of the composite lining plate, and the lining plate pressing plate is flush with the low side of the composite lining plate to eliminate the mud accumulation rooting point. The distance from the top of the composite lining plate to the top of the adjacent lining plate pressing plate is about 270 mm.

[0009] Preferably, the top of the composite lining plate on the second pulp-making circle is arc-shaped, the cross-sectional shape of the lining plate pressing plate is an isosceles trapezoid, and the distance from the top of the composite lining plate to the top of the adjacent lining plate pressing plate is about 187 mm. The isosceles trapezoid lining plate pressing plate is flush with the low side of the composite lining plate to eliminate the mud accumulation rooting point. The height of the isosceles trapezoid lining plate pressing plate is about 100 - 115 mm.

[0010] Preferably, the cross-sectional shape of the lining plate pressing plate on the fourth pulp-making ring is a short L shape, with a net height of 33-43 mm, and the angle between the top of the composite lining plate and the horizontal plane, i.e., the mud-removing angle α, is less than 20°. The distance from the top of the composite lining plate to the top of the adjacent lining plate pressing plate is about 280 mm. The lining plate pressing plate fits the upper plate, the lining plate pressing plate fits the inclined high side of the composite lining plate, and the lining plate pressing plate is flush with the low side of the composite lining plate to eliminate the mud accumulation rooting point. The lining plate pressing plate fits both sides of the composite lining plate, and the lining plate pressing plate is flush with the low side of the composite lining plate to eliminate the mud accumulation rooting point.

[0011] Preferably, the multiple composite lining plates and lining plate pressing plates on the first pulp-making ring, the third pulp-making ring, and the fifth pulp-making ring are arranged counterclockwise, and the multiple composite lining plates and lining plate pressing plates on the second pulp-making ring and the fourth pulp-making ring are arranged clockwise.

[0012] Preferably, the composite lining plates and lining plate pressing plates of adjacent two pulp-making rings are axially staggered.

[0013] A usage method of a pulp-making device for a cylindrical ore washer includes the following steps:

[0014] Step 1: Before using the pulp-making device for the cylindrical ore washer, first check the connection of each component of the equipment to ensure that the T-shaped bolts and thickened trapezoidal nuts are firmly connected, ensure that the thickened trapezoidal nuts are fully welded to the cylindrical ore washer, ensure that the composite lining plates and lining plate pressing plates do not leak slurry within several years of normal use, and there is no looseness or damage to the composite lining plates and lining plate pressing plates. At the same time, check the operation status of the ore washer body to ensure its normal operation.

[0015] Step 2: Convey the bauxite to the pulp-making section of the cylindrical ore washer through a heavy plate feeder. Since the second pulp-making ring is the ore dropping point, the bauxite will first impact the second pulp-making ring under the action of gravity.

[0016] Step 3: Observe along the ore outlet direction of the cylindrical ore washer. As the cylindrical ore washer rotates clockwise, the inclined surfaces of the composite lining plates on the first pulp-making ring, the third pulp-making ring, and the fifth pulp-making ring are lifted, which is beneficial to increasing the rolling scrubbing effect. The lining plate pressing plates on the second pulp-making ring and the fourth pulp-making ring rotate clockwise to lift the ore, which is beneficial to increasing the lifting potential energy, and is also beneficial to vibrating and shedding the mud on the ore, and also enhances the effect of dispersing and cutting small mud masses; the different shapes and arrangement methods of the composite lining plates and lining plate pressing plates on different pulp-making rings act synergistically to make the ore fully tumble and scrub in the pulp-making section.

[0017] Step 4: During the ore washing process, continuously monitor the operation status of the ore washer, observe whether there is mud accumulation and the ore washing effect; regularly check the wear condition of the composite lining plates and lining plate pressing plates. Since they are made of wear-resistant materials, the service life is increased, but regular checks are still required to detect problems in a timely manner and handle them.

[0018] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0019] 1. For the slurry-making device and its usage method of a cylindrical ore washing machine according to the present invention, by using a new type of wear-resistant composite lining board and a lining board pressing plate made of wear-resistant alloy material, the original flexible contact between the ore and the rubber corrugated lining board is changed to a rigid contact between the ore and the alloy lining board pressing plate; and the second circle is the ore dropping point. The wear-resistant alloy lining board pressing plate adopts an isosceles T-shaped structure with high strength and good impact toughness, can withstand the strong impact potential energy of large pieces of ore, and the clockwise arrangement increases the lifting potential energy, which is conducive to vibrating off the mud on the ore and enhancing the effect of dispersing and cutting small mud masses; making it difficult for the mud masses to accumulate, greatly improving the mud accumulation situation, and avoiding affecting the ore washing effect due to mud accumulation.

[0020] 2. For the slurry-making device and its usage method of a cylindrical ore washing machine according to the present invention, by arranging the first, third, and fifth slurry-making circles counterclockwise and the second and fourth slurry-making circles clockwise, when the ore is converted between the slurry-making circles, both the impact potential energy and the rolling scrubbing effect are taken into account, and multiple scrubbing and impact methods work together, improving the ore washing efficiency and more effectively removing the soil on the surface of the ore, reducing the mud content rate of the ore washing product.

[0021] 3. For the slurry-making device and its usage method of a cylindrical ore washing machine according to the present invention, by arranging the composite lining boards and the lining board pressing plates of multiple slurry-making circles axially staggered, the movement path of the ore in the cylindrical ore washing machine becomes more complex and diverse, increasing the impact potential energy and the rolling scrubbing path, being conducive to vibrating off the mud on the ore, enabling the ore to be more fully soaked and scrubbed. The service life of the wear-resistant alloy composite lining board and the wear-resistant alloy lining board is at least more than 36 months, and even up to more than 48 months, and can maintain a strong scrubbing effect for a long time, improving the ore washing efficiency. Through comparative analysis, the mud content rate of the ore washing product can be reduced by more than 10%, and through comparative analysis, the mud content rate of the ore washing product can be reduced by more than 40%. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the structure diagram of the ore washing machine body of the present invention;

[0023] Figure 2 is the present invention Figure 1 sectional views of A-A, C-C, and E-E of;

[0024] Figure 3 is the present invention Figure 2 enlarged view of A of;

[0025] Figure 4 is the present invention Figure 1 sectional view of B-B of;

[0026] Figure 5 is the present invention Figure 4Enlarged view at position B;

[0027] Figure 6 is of the present invention Figure 1 Sectional view taken along D-D of the present invention;

[0028] Figure 7 is of the present invention Figure 6 Enlarged view at position C of the present invention;

[0029] In the accompanying drawings, 1 is the ore washing machine body; 2 is the pulp making section; 3 is the first pulp making ring; 4 is the second pulp making ring; 5 is the third pulp making ring; 6 is the fourth pulp making ring; 7 is the fifth pulp making ring; 8 is the composite lining plate; 9 is the lining plate pressing plate; 10 is the extension plate; 1001 is the upper plate; 1002 is the lower plate; 11 is the T-shaped bolt; 12 is the thickened trapezoidal nut. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the present invention more clear and understandable, the following preferred embodiments are given with reference to the accompanying drawings for further detailed description of the present invention. However, it should be noted that many details listed in the specification are only for enabling the reader to have a thorough understanding of one or more aspects of the invention, and these aspects of the present invention can be implemented even without these specific details.

[0031] Please refer to Figures 1 to 3 , the present invention provides a pulp making device for a cylindrical ore washing machine and its usage method, and the technical solution is as follows:

[0032] It includes the ore washing machine body 1, and a pulp making section 2 is provided inside the ore washing machine body 1. The pulp making section 2 includes five pulp making rings. The five pulp making rings can be divided into the first pulp making ring 3, the second pulp making ring 4, the third pulp making ring 5, the fourth pulp making ring 6 and the fifth pulp making ring 7 according to the sorting. A plurality of composite lining plates 8 and lining plate pressing plates 9 are provided on each pulp making ring. The new type wear-resistant composite lining plates 8 are adopted, and the lining plate pressing plates 9 are made of wear-resistant alloy materials. The plurality of composite lining plates 8 and lining plate pressing plates 9 on the same pulp making ring are arranged alternately in a ring shape. Both ends of each composite lining plate 8 are provided with extension plates 10, and the extension plates 10 can be divided into an upper plate 1001 and a lower plate 1002. The lining plate pressing plate 9 is arranged on the upper plate 1001, and the lower plate 1002 is located at the lower end of the upper plate 1001 of the adjacent composite lining plate 8. The adjacent two composite lining plates 8 and lining plate pressing plates 9 are connected by T-shaped bolts 11 and thickened trapezoidal nuts 12.

[0033] The pulp making section 2 is provided with five pulp making rings, and the composite lining plates 8 and lining plate pressing plates 9 on each pulp making ring are arranged alternately in a ring shape, taking into account both the impact potential energy and the rolling scrubbing effect; during the rotation of the cylinder, the ore frequently contacts and collides with the composite lining plates 8 and lining plate pressing plates 9, which prolongs the effective ore washing time, enables the ore to be soaked and scrubbed more fully, helps to improve the ore washing efficiency, and reduces the mud content rate of the ore washing products;

[0034] The design of the extension plates 10 at both ends of the composite liner 8, and the cooperation between the liner pressing plate 9 and the upper plate 1001 of the extension plate 10, form a special structure between the adjacent composite liners 8 and the liner pressing plate 9. The liner pressing plate 9 fits the two sides of the composite liner 8, and the liner pressing plate 9 is flush with the lower side of the composite liner 8, eliminating the rooting point of mud accumulation; during the movement of the ore, the mud mass is easily divided and peeled off by this structure; especially combined with the characteristics of rigid contact, it is more conducive to vibrating the mud off the ore, enhancing the divergent and cutting effect of small mud masses, promoting the separation of ore and clay mud, and improving the quality of ore washing;

[0035] T-bolts 11 and thickened trapezoidal nuts 12 are used to connect adjacent composite liners 8 and liner pressure plates 9. Compared with ordinary bolts, this connection method can withstand greater impact force. During the ore washing process, especially when the second and third circles are used as ore dropping points and are subjected to the impact of large pieces of ore, the connection between the liner and the liner pressure plate 9 can be ensured to be firm and not easy to loosen or fall off. The thickened trapezoidal nuts 12 are fully welded to the cylindrical ore washing machine to ensure that the composite liners 8 and the liner pressure plates 9 do not leak during several years of normal use. At the same time, the composite liners 8 and the liner pressure plates 9 are made of wear-resistant materials, which improves the overall wear resistance of the equipment, extends its service life, reduces the number of liner replacements and maintenance costs, and ensures continuous production operation.

[0036] The multiple composite liners 8 and liner pressing plates 9 on the first pulping circle 3, the third pulping circle 5 and the fifth pulping circle 7 are of the same shape, the top of the composite liner 8 is inclined, and the angle between the top of the composite liner 8 and the horizontal plane is the mud removal angle α, and the mud removal angle α is less than 30°. The cross-sectional shape of the liner pressing plate is a high L-shape, and the liner pressing plate 9 fits the inclined high side of the composite liner 8. The liner pressing plate 9 is flush with the low side of the composite liner 8 to eliminate the rooting points of mud accumulation. The distance from the top of the composite liner 8 to the top of the adjacent liner pressing plate 9 is about 270 mm, and the cross-sectional shape of the liner pressing plate 9 is a high L-shape with a net height of about 55 mm.

[0037] The top of the composite liner 8 of the first, third and fifth slurry rings is inclined and the desludging angle α is less than 30°. This design enables the ore to roll along the inclined composite liner 8 during the process of rising and falling with the rotation of the drum; the rolling process increases the friction between the ore and the composite liner 8, strengthens the scrubbing effect on the mud layer on the surface of the ore, helps to more fully remove the mud on the surface of the ore and improve the ore washing efficiency; at the same time, the reasonable desludging angle design allows the mud mass to fall off the ore surface more smoothly under the action of gravity and centrifugal force, reducing the residual mud mass and reducing the mud content of the washed ore product;

[0038] The liner pressing plate 9 is of a high L shape and fits the upper plate 1001 and the side of the composite liner 8, forming a specific structure with the composite liner 8, reducing the angles and spaces that may cause mud accumulation; the distance from the top of the composite liner 8 to the top of the adjacent liner pressing plate 9 is about 270 mm. This spacing setting not only ensures sufficient movement space for the ore to be scrubbed but also avoids mud mass accumulation due to too small a spacing; reducing mud accumulation can prevent the washing effect from being affected by excessive mud accumulation, eliminate the mud rooting points between the liner pressing plate 9 and the composite liner 8, ensure that the sufficient scrubbing movement space of the ore is not occupied, enable the ore to be more fully soaked and scrubbed, and further improve the washing quality;

[0039] The multiple composite liners 8 and liner pressing plates 9 on the first, third, and fifth pulp-making circles are of the same shape. This unified design is also conducive to working in coordination with the different structures of other pulp-making circles to jointly achieve more comprehensive and efficient processing of the ore; the coordinated cooperation between different pulp-making circles can adapt to complex ore characteristics and further improve the overall washing effect.

[0040] The top of the composite liner 8 on the second pulp-making circle 4 is arc-shaped, the cross-sectional shape of the liner pressing plate 9 is an isosceles trapezoid, and the distance from the top of the composite liner 8 to the top of the adjacent liner pressing plate 9 is about 187 mm.

[0041] The second pulp-making circle 4 is the ore dropping point. The top of the composite liner 8 is designed to be arc-shaped, which, in cooperation with the liner pressing plate 9 with an isosceles trapezoid cross-section, can effectively cope with the impact of large pieces of ore; the arc-shaped top of the composite liner 8 can disperse the impact force when the ore falls, avoiding excessive wear of the liner caused by local stress concentration; the isosceles trapezoid liner pressing plate 9 has high strength and impact resistance toughness and can withstand the powerful impact potential energy of large pieces of ore; when large pieces of ore impact this area, the powerful impact force causes large mud masses to be impacted and hung on the protruding liner pressing plate 9 and be divided into small mud masses, creating favorable conditions for the subsequent scrubbing and de-mudding processes;

[0042] The distance from the top of the composite liner 8 to the top of the adjacent liner pressing plate 9 is about 187 mm, forming a unique scrubbing space. In this space, the interaction between the ore, the liner, and the pressing plate is more sufficient; during the impact and rolling of the ore, the rigid contact with the liner pressing plate 9 is conducive to vibrating and shedding the mud on the ore; at the same time, the mud rooting points between the liner pressing plate 9 and the composite liner 8 are eliminated, and it is not easy to reattach to the ore surface after being peeled off, enhancing the mud mass peeling effect and improving the quality and efficiency of washing;

[0043] As the area where the ore impact is most concentrated, the second pulp-making circle 4 adopts a lining plate pressing plate 9 with an isosceles trapezoid cross-sectional shape, and is closely matched with the composite lining plate 8, which can better withstand the impact and reduce wear; ensuring that in the long-term ore washing operation, the second pulp-making circle 4 can operate stably, extending the service life of the entire pulp-making section 2, reducing the equipment maintenance cost, and ensuring the continuous production.

[0044] The cross-sectional shape of the lining plate pressing plate 9 on the fourth pulp-making circle 6 is a short L shape, and the angle between the top of the composite lining plate 8 and the horizontal plane, i.e., the mud removal angle α, is less than 20°, and the distance from the top of the composite lining plate 8 to the top of the adjacent lining plate pressing plate 9 is about 280 mm.

[0045] The fourth circle is the place where the most mud accumulates. The lining plate pressing plate 9 adopts a short L-shaped structure, and the height is reduced by about 42 mm, effectively eliminating the mud accumulation angle; the angle between the top of the composite lining plate 8 and the horizontal plane, i.e., the mud removal angle α, is less than 20°. Compared with the previous larger mud removal angle of 41°, the possibility of mud accumulation is reduced; moreover, the distance from the top of the composite lining plate 8 to the top of the adjacent lining plate pressing plate 9 is increased to 280 mm. Compared with the previous version, the spacing is increased by 30 mm, and the mud accumulation area is reduced by more than half; coupled with the elimination of the mud accumulation rooting point between the lining plate pressing plate 9 and the composite lining plate 8, these design changes make it difficult for mud lumps to accumulate in this area, greatly improving the mud accumulation condition and avoiding the influence of mud accumulation on the ore washing effect.

[0046] The smaller mud removal angle α and the increased spacing between the composite lining plate 8 and the lining plate pressing plate 9, combined with the short L-shaped lining plate pressing plate 9, make it easier for mud lumps to fall off under the action of gravity and centrifugal force; when the ore passes through the fourth pulp-making circle 6, the mud lumps can be more smoothly separated from the ore surface, improving the efficiency and quality of mud removal and enhancing the ore washing effect; reducing mud accumulation can avoid the secondary pollution of the ore by mud lumps and ensure the ore washing quality of ore washing.

[0047] The multiple composite lining plates 8 and lining plate pressing plates 9 on the first pulp-making circle 3, the third pulp-making circle 5 and the fifth pulp-making circle 7 are arranged counterclockwise, and the multiple composite lining plates 8 and lining plate pressing plates 9 on the second pulp-making circle 4 and the fourth pulp-making circle 6 are arranged clockwise.

[0048] The composite liners 8 and liner pressing plates 9 of different pulp-making rings are arranged in different directions, making the movement trajectory of the ore in the cylindrical ore washer more complex; the first, third, and fifth pulp-making rings are arranged counterclockwise, and the second and fourth pulp-making rings are arranged clockwise. In this way, when the ore switches between the pulp-making rings, its movement path continuously changes; for example, in the second pulp-making ring 4, the clockwise arrangement, combined with the special structure that the top of the composite liner 8 is arc-shaped and the liner pressing plate 9 is isosceles trapezoidal, can increase the potential energy of the ore lifting and strengthen the impact crushing effect on the mud mass; while in the first, third, and fifth pulp-making rings, the counterclockwise arrangement, combined with the inclined shape of the composite liner 8 and the high L-shaped liner pressing plate 9, enhances the rolling scrubbing effect; the synergistic effect of various scrubbing and impact methods improves the ore washing efficiency, more effectively removes the soil on the ore surface, and reduces the mud content of the washed ore products.

[0049] This staggered arrangement improves the adaptability of the equipment to ores with different characteristics. The mud content and the number of clay masses in bauxite vary greatly. The pulp-making rings with different arrangement directions can process the ore from different angles and in different ways; for ores with high hardness and strong adhesion of clay masses, through multiple impacts and scrubbings of different pulp-making rings, the clay masses can be more effectively separated; for ores with high mud content, the complex movement trajectory and various action methods can improve the ore washing efficiency, ensure the stable operation of the equipment under various working conditions, and improve the overall performance of the equipment.

[0050] The composite liners 8 and liner pressing plates 9 of adjacent two said pulp-making rings are axially staggered.

[0051] The composite liners 8 and liner pressing plates 9 of different pulp-making rings are axially staggered, making the movement path of the ore in the cylindrical ore washer more complex and diverse; when the ore enters an adjacent pulp-making ring from one pulp-making ring, due to the axial stagger, its movement path changes, which avoids the formation of a fixed movement pattern during the ore washing process, enabling it to contact, collide, and rub against the composite liners 8 and liner pressing plates 9 at more positions; for example, the first pulp-making ring 3 and the second pulp-making ring 4 are axially staggered. When the ore enters the second ring from the first ring, the movement trajectory changes, and it contacts the composite liner 8 and liner pressing plate 9 of the second ring more fully, thereby enhancing the scrubbing effect on the mud layer on the ore surface, improving the ore washing efficiency, and further reducing the mud content of the washed ore products.

[0052] A usage method of a pulp-making device for a cylindrical ore washer includes the following steps:

[0053] Step 1: Before using the pulp-making device of the cylindrical ore washer, first check the connection of each component of the equipment to ensure that the T-shaped bolts and the thickened trapezoidal nuts 12 are firmly connected, ensure that the thickened trapezoidal nuts 12 are fully welded to the cylindrical ore washer, ensure that the composite liners 8 and liner pressing plates 9 do not leak slurry during several years of normal use, and there are no loosening or damage phenomena for the composite liners 8 and liner pressing plates 9. At the same time, check the operation status of the ore washer body 1 to ensure that it can operate normally.

[0054] Step 2: transport the bauxite to the slurry-making section 2 of the drum ore washer through a heavy plate feeder. Since the second slurry-making circle 4 is the ore-falling point, the bauxite will first impact the second slurry-making circle 4 under the action of gravity.

[0055] Step three: Observe along the direction of the ore outlet of the drum ore washer. As the drum ore washer rotates clockwise, the inclined surface of the composite lining 8 on the first slurry circle 3, the third slurry circle 5 and the fifth slurry circle 7 is lifted, which is beneficial to increase the rolling and scrubbing effect. The lining plate 9 on the second slurry circle 4 and the fourth slurry circle 6 rotates clockwise to lift the ore, which is beneficial to increase the lifting potential energy, vibrate the mud off the ore, and enhance the effect of diverging and cutting small mud balls. The different shapes and arrangements of the composite liners 8 and lining plate pressure plates 9 on different slurry circles work together to make the ore fully tumble and scrub in the slurry section 2.

[0056] Step 4: During the ore washing process, continuously monitor the operating status of the ore washing machine to observe whether there is mud accumulation and the washing effect; regularly check the wear of the composite lining 8 and the lining pressure plate 9. Since they are made of wear-resistant materials, their service life is increased to more than 36 months, but regular inspections are still required to detect problems in time and deal with them.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A drum ore washer pulping device, characterized in that: include: A ore washer body (1), wherein a pulping section (2) is provided in the ore washer body (1), wherein the pulping section (2) includes five pulping rings, wherein the five pulping rings can be divided into a first pulping ring (3), a second pulping ring (4), a third pulping ring (5), a fourth pulping ring (6) and a fifth pulping ring (7) in order, wherein each of the pulping rings is provided with a plurality of composite lining plates (8) and lining plate pressing plates (9), wherein the plurality of composite lining plates (8) and lining plate pressing plates (9) on the same pulping ring The composite liners (8) are arranged alternately in a ring shape, and both ends of each composite liners (8) are provided with extension plates (10), and the extension plates (10) can be divided into an upper plate (1001) and a lower plate (1002). The liner pressing plate (9) is arranged on the upper plate (1001), and the lower plate (1002) is located at the lower end of the upper plate (1001) of the adjacent composite liners (8). The two adjacent composite liners (8) and the liner pressing plate (9) are connected by T-bolts (11) and thickened trapezoidal nuts (12).

2. A drum ore washer pulping device according to claim 1, characterized in that: The multiple composite liners (8) and liner pressing plates (9) on the first pulping ring (3), the third pulping ring (5) and the fifth pulping ring (7) have the same shape. The top of the composite liners (8) is inclined, and the angle between the top of the composite liners (8) and the horizontal plane is a desludging angle α, and the desludging angle α is less than 30°. The cross-sectional shape of the liner pressing plate (9) is a high L-shape, and its net height is about 55 mm. The liner pressing plate (9) fits the upper plate (1001). The liner pressing plate (9) fits the inclined high side of the composite liner (8), and the liner pressing plate (9) is flush with the low side of the composite liner (8) to eliminate the rooting point of mud accumulation. The distance from the top of the composite liner (8) to the top of the adjacent liner pressing plate (9) is about 270 mm.

3. A drum ore washer pulping device according to claim 1, characterized in that: The top of the composite liner (8) on the second pulping ring (4) is in the shape of an arc, the cross-sectional shape of the liner pressing plate (9) is in the shape of an isosceles trapezoid, and the distance from the top of the composite liner (8) to the top of the adjacent liner pressing plate (9) is about 187 mm. The isosceles trapezoidal liner pressing plate (9) is flush with the lower side of the composite liner (8) to eliminate the rooting point of mud accumulation, and the height of the isosceles trapezoidal liner pressing plate (9) is about 100-115 mm.

4. A drum ore washer pulping device according to claim 2, characterized in that: The cross-sectional shape of the lining plate (9) on the fourth pulping circle (6) is a short L-shape with a net height of 33-43 mm, and the angle between the top of the composite lining (8) and the horizontal plane is a desludging angle α of less than 20°. The distance from the top of the composite lining (8) to the top of the adjacent lining plate (9) is about 280 mm, and the lining plate (9) fits the upper plate (1001). The lining plate (9) fits the inclined high side of the composite lining (8), and the lining plate (9) is flush with the low side of the composite lining (8), thereby eliminating the rooting points of mud accumulation.

5. A drum ore washer pulping device according to claim 1, characterized in that: The multiple composite liners (8) and liner pressing plates (9) on the first pulping circle (3), the third pulping circle (5) and the fifth pulping circle (7) are arranged counterclockwise, and the multiple composite liners (8) and liner pressing plates (9) on the second pulping circle (4) and the fourth pulping circle (6) are arranged clockwise.

6. A drum ore washer pulping device according to claim 5, characterized in that: The composite lining plates (8) and lining plate pressing plates (9) of two adjacent pulping rings are axially staggered.

7. A method for using a drum ore washer pulping device according to any one of claims 1 to 6, comprising the following steps: Step 1: Before using the drum ore washer pulping device, first check the connection of each component of the equipment, ensure that the T-bolt and the thickened trapezoidal nut (12) are firmly connected, ensure that the thickened trapezoidal nut (12) is fully welded to the drum ore washer, ensure that the composite liner (8) and the liner pressing plate (9) do not leak during several years of normal use, and that the composite liner (8) and the liner pressing plate (9) are not loose or damaged. At the same time, check the operating status of the ore washer body (1) to ensure that it can operate normally. Step 2: The bauxite is transported to the slurry-making section (2) of the drum ore washer through a heavy plate feeder. Since the second slurry-making circle (4) is the ore-falling point, the bauxite will first impact the second slurry-making circle (4) under the action of gravity. Step 3: Observe along the direction of the ore outlet of the drum ore washer. As the drum ore washer rotates clockwise, the inclined surfaces of the composite linings (8) on the first slurry-making circle (3), the third slurry-making circle (5) and the fifth slurry-making circle (7) are lifted, which is beneficial to increase the rolling and scrubbing effect. The lining pressing plates (9) on the second slurry-making circle (4) and the fourth slurry-making circle (6) rotate clockwise to lift the ore, which is beneficial to increase the lifting potential energy, vibrate the mud off the ore, and enhance the effect of diverging and cutting small mud balls. The different shapes and arrangements of the composite linings (8) and lining pressing plates (9) on different slurry-making circles work together to make the ore fully tumble and scrub in the slurry-making section (2). Step 4: During the ore washing process, continuously monitor the operating status of the ore washing machine to observe whether there is mud accumulation and the ore washing effect; regularly check the wear of the composite lining (8) and the lining pressure plate (9). Since they are made of wear-resistant materials, their service life is increased, but regular inspections are still required to detect problems in time and deal with them.

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