CN210584778U

CN210584778U - Lithium ore deposit stone washing front end size mixing device

Info

Publication number: CN210584778U
Application number: CN201921353250.8U
Authority: CN
Inventors: 金真; 彭万通
Original assignee: Baiyin Zabuye Lithium Industry Co ltd
Current assignee: Baiyin Zabuye Lithium Industry Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-22
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a lithium ore deposit stone washing front end size mixing device belongs to metallurgical technical field to it is incomplete to solve the coarse grain homogenization behind the lithium ore grinding, influences the problem of causticization reaction process. The device includes the feed bin, the ball mill, the size mixing tank, still including the rose box and the overflow launder of interconnect, the size mixing tank is equipped with second agitating unit and second discharge gate, the rose box is established in the ball mill below, be equipped with first agitating unit in the overflow launder, two at least first baffles, first baffle is along the vertical equipartition of overflow launder circumference on the overflow launder inner wall, overflow launder lower part lateral wall is equipped with first discharge gate and first scarfing cinder mouth, first discharge gate is higher than first scarfing cinder mouth, the pan feeding mouth of size mixing tank is connected through the overflow pipe to first discharge gate. The utility model discloses utilize the characteristic that contains soluble salt in the lithium ore pulp, through the overflow launder and the high-order silo that install additional realize the refining of granule in the ore pulp before the ore washing, make its better requirement that satisfies causticization reaction, through homogenization ore pulp granularity, improve causticization reaction efficiency.

Description

Lithium ore deposit stone washing front end size mixing device

Technical Field

The utility model belongs to the technical field of the metallurgy, concretely relates to lithium ore deposit front end size mixing device is washed to stone.

Background

Lithium concentrate of the Tibet salt lake contains 50-75% of lithium carbonate, and the balance of trona, glaserite, halite and clay minerals accounting for 3-5% of the lithium carbonate, and a small amount of sodium silicate, quartz, feldspar, tremolite and other inclusions.

The company uses the ore as a raw material to purify more than 99 percent of lithium carbonate products, adopts a lime causticization method, and has the following process flow: the lithium concentrate is ground → ore washing → causticization → separation of lithium hydroxide solution and lithium slag → evaporation concentration → impurity removal → carbon dioxide carbonization → separation and washing → lithium carbonate product.

In the prior art, when a ball mill is used for grinding ores, a small amount of non-ground ore pulp is inevitably mixed into a pulp mixing tank and even enters an ore washing link to influence the subsequent process production, a simple coarse filter screen is commonly used for filtering in operation, but the arrangement of the filter screen is a difficult problem troubling operators, when the filter screen is coarse, only large-particle non-ground ores can be intercepted, small particles still can be mixed into the subsequent process, the meaning is not large, when the filter screen is fine, a worker is often required to observe and clean slag on the filter screen in time, otherwise, ore overflow is easy to happen easily, because the raw material ore components fluctuate and the working state of the ball mill fluctuates, the simple coarse filter screen is intercepted and then is slowly eliminated, and how coarse particles are refined uniformly after lithium ore stone grinding enters the ore washing link, so that the research and development personnel focus on the practice is formed. Therefore, research and development personnel provide a lithium ore washing front-end size mixing device to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ore washing front end size mixing device to it is incomplete to solve the coarse grain homogenization behind the lithium ore grinding, influences the problem of causticization reaction process.

In order to solve the above problems, the utility model discloses technical scheme does:

the utility model provides a lithium ore deposit washout front end size mixing device, including the feed bin, the ball mill, the size mixing tank, still include the rose box and the overflow launder of interconnect, the size mixing tank is equipped with second agitating unit and second discharge gate, the rose box is established in the ball mill below, be equipped with first agitating unit in the overflow launder, two at least first baffles, vertical equipartition is on the overflow launder inner wall along the overflow launder circumference for first baffle, overflow launder lower part lateral wall is equipped with first discharge gate and first scarfing cinder mouth, first discharge gate is higher than first scarfing cinder mouth, the pan feeding mouth of size mixing tank is connected through the overflow pipe to first discharge gate.

Furthermore, the filter box is connected with the overflow groove through a chute, and filter cloth made of soft materials is arranged in the filter box.

Further, be equipped with two at least second baffles in the size mixing groove, the vertical equipartition of second baffle along the size mixing groove circumference is on the size mixing groove inner wall, and size mixing groove lower part lateral wall is equipped with the clear cinder notch of second, and the second discharge gate is higher than the clear cinder notch of second, and the second discharge gate is connected with the pan feeding mouth of high-order silo.

Further, a third stirring device and at least two third baffles are arranged in the high-position trough, the third baffles are uniformly distributed on the inner wall of the high-position trough along the circumference of the high-position trough in a vertical mode, a third discharge hole and a third slag removing hole are formed in the side wall of the lower portion of the high-position trough, and the third discharge hole is higher than the third slag removing hole.

Furthermore, the diameter of the overflow pipe is 200mm-250 mm.

Furthermore, a charging belt scale is arranged between the stock bin and the ball mill.

Furthermore, a bucket elevator is arranged at the front end of the stock bin, and a discharging pipe of the bucket elevator is arranged above the stock bin.

The utility model has the advantages as follows:

(1) the utility model discloses utilize the rose box to filter big coarse grain lithium ore in the ball mill ejection of compact, the buffering that utilizes the overflow launder to do the lithium ore pulp is dissolved, first agitating unit and first baffle are mutually supported, in the stirring, granule and first baffle bump in the lithium ore pulp, wherein soluble slow dissolving, the granule slowly diminishes, communicate with overflow pipe and size mixing groove, utilize the linker principle, keep the liquid level of overflow launder and size mixing inslot in at dynamic balance, the overflow pipe chooses for use the thick pipe that the diameter is 200mm-250mm, when the overflow, clear liquid and the ground paste that contains fine granule overflow simultaneously, prevent too much piling up of granule material in the overflow launder, need frequent scarfing cinder, influence the operating efficiency, final large granule heavier material piles up when more in the overflow launder bottom, through first scarfing cinder notch clearance can.

(2) The filter cloth that soft material made is established in the filter box, piles up along with the ore material sediment that does not grind and can push down the filter cloth, compares with the stereoplasm filter screen, is difficult for overflowing, as long as the periodic cleaning before every shift can, more practical.

(3) The size mixing tank is used as a second-stage size mixing device, receives the ore pulp from the overflow, and still contains partial ore, the same second stirring device and the second baffle are matched with each other, particles in the pulp collide with the second baffle in the stirring process, the particles are slowly dissolved in the pulp, the particles further slowly diminish, the particles are conveyed to a high-level trough by a conveying pump to be continuously stirred, the pulp particles are continuously refined, the pulp particles are further refined through first-stage overflow buffering, second-stage size mixing and third-stage further stirring, and no large-particle material exists in the ore pulp finally entering the ore washing process of the belt filter.

(4) The belt weigher facilitates process batching; the bucket elevator is convenient to match with the height difference of the positions of the devices when the devices are arranged.

(5) The utility model utilizes the characteristic that the lithium ore pulp contains soluble salt, realizes the refinement of particles in the ore pulp before ore washing through the overflow chute and the elevated silo which are additionally arranged, so that the particles can better meet the requirement of causticization reaction, the equipment is simple to additionally arrange and convenient to operate, the filter screen can be cleaned regularly before each shift, and the particles do not need to be checked at any time; by homogenizing the pulp granularity, the causticization reaction efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a lithium ore washing front-end pulp mixing device.

The reference numbers are as follows: 1. a bucket elevator; 11. a power plant; 12. a feeding port; 13. a discharging pipe; 2. a storage bin; 3. weighing by a charging belt; 4. a ball mill; 5. a filter box; 51. filtering cloth; 6. a chute; 7. an overflow trough; 71. a first stirring device; 72. a first baffle plate; 73. a first discharge port; 74. a first slag removal port; 75. an overflow pipe; 8. a size mixing tank; 81. a second stirring device; 82. a second baffle; 83. a second discharge port; 84. a second slag removal port; 9. a high-position trough; 91. a third stirring device; 92. a third baffle plate; 93. a third discharge port; 94. a third slag removal port; 10. a delivery pump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the lithium ore washing front-end pulp mixing device comprises a stock bin 2, a ball mill 4 and a pulp mixing tank 8, wherein a feeding belt scale 3 is arranged between the stock bin 2 and the ball mill 4; the front end of the storage bin 2 is provided with a bucket elevator 1, and a discharging pipe 13 of the bucket elevator 1 is arranged above the storage bin 2. The slurry mixing tank 8 is provided with a second stirring device 81 and a second discharge hole 83, at least two second baffles 82 are arranged in the slurry mixing tank 8, the second baffles 82 are vertically and uniformly distributed on the inner wall of the slurry mixing tank 8 along the circumference of the slurry mixing tank 8, the side wall of the lower part of the slurry mixing tank 8 is provided with a second slag cleaning hole 84, the second discharge hole 83 is higher than the second slag cleaning hole 84, and the second discharge hole 83 is connected with a feeding hole of the high-position trough 9; a third stirring device 91 and at least two third baffles 92 are arranged in the high-position trough 9, the third baffles 92 are uniformly distributed on the inner wall of the high-position trough 9 along the circumference of the high-position trough 9 in the vertical direction, a third discharge hole 93 and a third slag removal hole 94 are formed in the side wall of the lower portion of the high-position trough 9, and the third discharge hole 93 is higher than the third slag removal hole 94.

Still include rose box 5 and overflow launder 7 that interconnect, specifically: the filter box 5 is connected with the overflow groove 7 through a chute 6, the filter box 5 is arranged below the ball mill 4, and filter cloth 51 made of soft materials is arranged in the filter box 5; the overflow trough 7 is internally provided with a first stirring device 71 and at least two first baffles 72, the first baffles 72 are vertically and uniformly distributed on the inner wall of the overflow trough 7 along the circumference of the overflow trough 7, the side wall of the lower part of the overflow trough 7 is provided with a first discharge hole 73 and a first slag cleaning hole 74, the first discharge hole 73 is higher than the first slag cleaning hole 74, and the first discharge hole 73 is connected with the feeding hole of the size mixing trough 8 through an overflow pipe 75. The diameter of the overflow pipe 75 is 200mm-250 mm.

During operation, lithium ore enters the bucket elevator 1 from the feeding port 12, the power device 11 is started to lift the lithium ore, the lithium ore is conveyed to the bin 2 from the blanking pipe 13, the ore is weighed and proportioned by the process of weighing 3 through the feeding belt, the ore is added into the ball mill 4 to be ground, slurry is intercepted by the filter cloth 51 in the filter box 5, large-particle materials are left on the filter cloth 51, fine-particle slurry enters the overflow chute 7 through the slide pipe 6, the first stirring device 71 and the first baffle plate 72 are matched with each other, particles in the lithium ore slurry collide with the first baffle plate 72 during stirring, soluble slow dissolution is carried out, the particles slowly diminish, the particles overflow into the slurry mixing tank 8 through the thick overflow pipe 75, the slurry mixing process similar to the overflow chute 7 is continuously carried out in the slurry mixing tank 8, the second stirring device 81 and the second baffle plate 82 are matched with each other, the particles in the lithium ore slurry collide with the second baffle plate 82 during stirring, wherein the dissoluble is slowly dissolved, the particles further slowly diminish, the particles are pumped into the high-level trough 9 under the action of the delivery pump 10, size mixing and particle homogenization before ore washing are carried out again, the third stirring device 91 and the third baffle 92 are mutually matched, the particles in the lithium ore pulp collide with the third baffle 92 during stirring, wherein the dissoluble is slowly dissolved, and the ore pulp particles are completely homogenized and can enter the ore washing link.

The larger and heavier slag materials accumulated at the bottom of the overflow groove 7 are slowly dissolved and collided under the stirring of the first stirring device 71, the slag materials which can be dissolved and become small can be slowly reduced, the slag materials float to the first discharge hole 73 to overflow, and the slag materials which cannot be reduced in size are discharged and collected through the first slag cleaning hole 74 for uniform treatment when the equipment is overhauled; similar to the slurry mixing tank 8 and the high-position material tank 9, the thick slag materials are discharged through the second slag cleaning port 84 and the third slag cleaning port 94 respectively during equipment maintenance, and are collected and then treated in a unified manner.

The filter cloth 51 intercepts larger particles, collects them, and then merges them into the inlet of the ball mill, and grinds them again.

In the pipeline for liquid conveying, a conveying pump can be arranged on a required pipeline line for realizing the conveying of the feed liquid from low to high, and the conveying pump does not need to be additionally arranged on the pipeline with the height difference and capable of automatically flowing, so that the equipment cost and the power are saved.

Claims

1. The utility model provides a lithium ore deposit stone washing front end size mixing device, includes feed bin (2), ball mill (4), size mixing tank (8) are equipped with second agitating unit (81), second discharge gate (83), its characterized in that: the ball mill is characterized by further comprising a filter box (5) and an overflow groove (7) which are connected with each other, wherein the filter box (5) is arranged below the ball mill (4), a first stirring device (71) and at least two first baffles (72) are arranged in the overflow groove (7), the first baffles (72) are vertically and uniformly distributed on the inner wall of the overflow groove (7) along the circumference of the overflow groove (7), a first discharge hole (73) and a first slag cleaning hole (74) are formed in the side wall of the lower portion of the overflow groove (7), the first discharge hole (73) is higher than the first slag cleaning hole (74), and the first discharge hole (73) is connected with a feed inlet of the slurry mixing groove (8) through an overflow pipe (75).

2. The lithium ore washing front-end slurry mixing device of claim 1, wherein: the filter box (5) is connected with the overflow groove (7) through a chute (6), and filter cloth (51) made of soft materials is arranged in the filter box (5).

3. The lithium ore washing front end slurry mixing device according to claim 1 or 2, wherein: be equipped with two at least second baffles (82) in size mixing groove (8), vertical equipartition is on size mixing groove (8) inner wall along size mixing groove (8) circumference in second baffle (82), size mixing groove (8) lower part lateral wall is equipped with second scarfing cinder mouth (84), second discharge gate (83) are higher than second scarfing cinder mouth (84), second discharge gate (83) are connected with the pan feeding mouth of high-order silo (9).

4. The lithium ore washing front end slurry mixing device according to claim 3, characterized in that: the high-position material tank is characterized in that a third stirring device (91) and at least two third baffle plates (92) are arranged in the high-position material tank (9), the third baffle plates (92) are uniformly distributed on the inner wall of the high-position material tank (9) along the circumference of the high-position material tank (9), a third material outlet (93) and a third slag cleaning opening (94) are formed in the side wall of the lower portion of the high-position material tank (9), and the third material outlet (93) is higher than the third slag cleaning opening (94).

5. The lithium ore washing front-end slurry mixing device of claim 1, wherein: the diameter of the overflow pipe (75) is 200mm-250 mm.

6. The lithium ore washing front-end slurry mixing device of claim 1, wherein: and a feeding belt scale (3) is arranged between the bin (2) and the ball mill (4).

7. The lithium ore washing front-end slurry mixing device of claim 1, wherein: the front end of the storage bin (2) is provided with a bucket elevator (1), and a blanking pipe (13) of the bucket elevator (1) is arranged above the storage bin (2).