CN209791694U

CN209791694U - Cryolite centrifugation filter cake coarse crushing device

Info

Publication number: CN209791694U
Application number: CN201920046302.0U
Authority: CN
Inventors: 张保平; 杜文生
Original assignee: Polyfluoro Kunming Technology Development Co Ltd
Current assignee: Polyfluoro Kunming Technology Development Co Ltd
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2019-12-17
Anticipated expiration: 2029-01-11

Abstract

The utility model relates to a cryolite preparation technical field, concretely relates to cryolite centrifugal filter cake coarse crushing device. The specific technical scheme is as follows: the utility model provides a cryolite centrifugation filter cake coarse crushing device, includes the frame, sets up the one-level coarse crushing unit in the frame and sets up the second grade coarse crushing unit in one-level coarse crushing unit below, the one-level coarse crushing unit includes barrel, vertical setting at the broken subassembly of one-level in the barrel, set up at the otter board of barrel bottom and set up the lower hopper in the otter board below, the bottom of hopper is equipped with the unloading pipe down, be provided with a plurality of piece that generates heat on the outside lateral wall of hopper down. The utility model provides an among the prior art because cryolite filter cake thickness leads to follow-up long, the inefficiency of cryolite filter cake drying time and the not thorough problem of drying greatly.

Description

Cryolite centrifugation filter cake coarse crushing device

Technical Field

The utility model relates to a cryolite preparation technical field, concretely relates to cryolite centrifugal filter cake coarse crushing device.

Background

The cryolite is named sodium fluoroaluminate in chemical name and has the molecular formula of Na₃AlF₆. Cryolite is natural and man-made, and is mainly used in industry as flux for electrolytic aluminum smelting, wear-resistant filler for rubber and grinding wheel, and enamelWhitening agents, fluxes for metals, and the like.

At present, sodium fluoride and aluminum fluoride are usually used as raw materials to prepare cryolite, and the cryolite product can be obtained by centrifugal dehydration and drying in the preparation process. Because the cryolite filter cake obtained in the centrifugal dehydration process is mostly blocky, has large thickness and also contains certain moisture, if the cryolite filter cake is directly added into the existing equipment for drying the cryolite filter cake for drying, the problems of long drying time, low efficiency and incomplete drying exist.

Disclosure of Invention

Not enough to prior art, the utility model provides a coarse crushing device of cryolite centrifugal filter cake has solved among the prior art because cryolite filter cake thickness leads to follow-up long, the inefficiency of cryolite filter cake drying time and the not thorough problem of drying greatly.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

A cryolite centrifugal filter cake coarse crushing device comprises a rack, a primary coarse crushing unit arranged on the rack and a secondary coarse crushing unit arranged below the primary coarse crushing unit, wherein the primary coarse crushing unit comprises a barrel, a primary crushing assembly vertically arranged in the barrel, a screen plate arranged at the bottom of the barrel and a discharging hopper arranged below the screen plate, a discharging pipe is arranged at the bottom of the discharging hopper, and a plurality of heating blocks are arranged on the side wall of the outer side of the discharging hopper;

The primary crushing assembly comprises a gravity block, a connecting shaft fixed at the top of the gravity block and a plurality of cutters arranged at the bottom of the gravity block, the cutters are arranged in a criss-cross mode to be in a grid shape, and the connecting shaft extends out of the top of the cylinder and is connected with the cylinder.

Preferably, the coarse crushing unit of second grade includes the casing and transversely sets up the broken subassembly of second grade in the casing, the bottom of casing is equipped with the filter screen, the below of filter screen is equipped with stoving storehouse, the top of casing is equipped with the feeder hopper, the feeder hopper with the unloading pipe corresponds from top to bottom.

Preferably, the secondary crushing assembly comprises a rotating shaft and a plurality of blades arranged on the rotating shaft, and one end of the rotating shaft is connected with a motor.

Preferably, a plurality of through holes are formed in the side wall of the drying bin, each through hole is provided with an electric heating wire, each electric heating wire is provided with a protective cover, each protective cover is communicated with each other through a vent pipe, and the other end of each vent pipe is connected with a fan.

Preferably, the bottom of the drying bin is provided with a discharge pipe, and a material containing groove is arranged below the discharge pipe.

Preferably, be provided with the feed chute on the lateral wall of barrel, the bottom of feed chute is equipped with the inlet pipe, the inlet pipe with the lateral wall of barrel is linked together.

Preferably, valves are respectively arranged on the feeding pipe, the discharging pipe and the feeding pipe.

Preferably, the cylinder is a telescopic rotary cylinder.

preferably, a plurality of the protective covers are on the same plane.

The utility model discloses possess following beneficial effect:

The utility model discloses a set up the gravity piece in the barrel, set up vertically and horizontally staggered's blade and set up the otter board in the blade below in the bottom of gravity piece to realize the upper and lower and the rotary motion of cutter through flexible revolving cylinder, thereby realize carrying out the breakage to the cryolite. In order to avoid that the cryolite is too high in humidity and not easy to break, a plurality of heating blocks are arranged on the side wall of the feeding hopper at the bottom of the cylinder body, and the cryolite falling from the screen plate can be primarily dried by heat generated by the heating blocks; then the cryolite after preliminary crushing can enter into the unit of the thick garrulous of second grade, carries out further breakage by the broken subassembly of second grade in the unit of the thick garrulous of second grade to, the heating wire of setting on the stoving storehouse lateral wall, the protection casing of cover on the heating wire, the breather pipe of communicating a plurality of protection casings and the fan of admitting air through the breather pipe can be to further drying of the cryolite after further crushing. Therefore, the utility model discloses a twice broken and dry process to effectual solution is because cryolite filter cake thickness leads to follow-up long, the inefficiency of cryolite filter cake drying time and the not thorough problem of drying greatly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the cutting knife arranged in a grid;

In the figure: the device comprises a frame 1, a cylinder 2, a screen plate 3, a discharging hopper 4, a discharging pipe 5, a heating block 6, a gravity block 7, a connecting shaft 8, a cutter 9, a cylinder 10, a shell 11, a filter screen 12, a drying bin 13, a feeding hopper 14, a rotating shaft 15, a blade 16, a motor 17, a protective cover 18, a vent pipe 19, a fan 20, a discharging pipe 21, a material containing groove 22, a feeding groove 23 and a feeding pipe 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model discloses a cryolite centrifugal filter cake coarse crushing device, including frame 1, the one-level coarse crushing unit of setting in frame 1 and the second grade coarse crushing unit of setting in one-level coarse crushing unit below, the one-level coarse crushing unit includes barrel 2, vertical one-level crushing unit of setting in barrel 2, set up at the otter board 3 of barrel 2 bottom and set up hopper 4 down in otter board 3 below, and the bottom of hopper 4 is equipped with unloading pipe 5 down, is provided with a plurality of heating block 6 on the outside lateral wall of hopper 4 down. It should be noted that: the number of the heating blocks 6 can be at least 1, and the primary drying is mainly performed on the cryolite entering the discharging hopper 4 from the mesh plate 3, so that the cryolite is prevented from being adhered to the inner wall of the discharging hopper 4 due to too much moisture. The mesh size of the mesh plate 3 is not limited, and the size of the crushed cryolite can be set according to the requirement.

The primary crushing assembly comprises a gravity block 7, a connecting shaft 8 fixed to the top of the gravity block 7 and a plurality of cutters 9 arranged at the bottom of the gravity block 7, the cutters 9 are arranged in a grid shape in a criss-cross mode, and when the cylinder 10 runs to the maximum stroke, the cutters 9 cannot contact the screen plate 3, so that damage to the screen plate 3 is avoided; the connecting shaft 8 extends out of the top of the cylinder 2 and is connected with the cylinder 10. The following are required to be explained: set the shape of cutter 9 into check mainly for carrying out even breakage to cryolite, cylinder 10 selects for flexible revolving cylinder, and flexible revolving cylinder connection director controls flexible revolving cylinder's operation through the controller, and the concrete work of cylinder 10 is as: make cylinder 10 carry out concertina movement earlier, make gravity piece 7 downstream, effect through gravity and cutter 9 of gravity piece 7 self, carry out the breakage with bold cryolite, then mention gravity piece 7, make cylinder 10 carry out rotary motion, rotatory angle sets up according to actual need, cylinder 10 is rotatory back, make cylinder 10 drive gravity piece 7 downstream again, carry out the breakage to the cryolite from a plurality of angles, fall down in the mesh that the cryolite can be followed on otter board 3 until the breakage, and the cryolite that falls down when hopper 4 under through, the heat that its piece 6 produced that generates heat will carry out preliminary drying to the cryolite, thereby the time of cryolite carrying out drying process has been saved. Moreover, by adopting the method for crushing, the screen holes of the screen plate 3 are not necessary to be worried about the blockage of the cryolite, because the cryolite blocked in the screen holes can be extruded out by the newly crushed cryolite under the action of the gravity block 7 and the cutter 9.

The second grade coarse crushing unit comprises a shell 11 and a second grade crushing component transversely arranged in the shell 11, a filter screen 12 is arranged at the bottom of the shell 11, a drying bin 13 is arranged below the filter screen 12, a plurality of through holes are formed in the side wall of the drying bin 13, an electric heating wire is arranged on each through hole, a protective cover 18 is arranged on each electric heating wire, each protective cover 18 is communicated with each other through a vent pipe 19, and the other end of each vent pipe 19 is connected with a fan 20. The bottom of the drying bin 13 is provided with a discharge pipe 21, and a material containing groove 22 is arranged below the discharge pipe 21. The top of the shell 11 is provided with a feed hopper 14, the feed hopper 14 corresponds to the blanking pipe 5 up and down, so that the cryolite crushed by the first-stage crushing assembly enters the shell 11 through the blanking pipe 5. The secondary crushing assembly comprises a rotating shaft 15 and a plurality of blades 16 arranged on the rotating shaft 15, and one end of the rotating shaft 15 is connected with a motor 17, so that the cryolite crushed by the primary crushing assembly is further crushed. The description is as follows: the mesh of the screen plate 3 is larger than the aperture of the filter screen 12, thereby achieving the effect of gradual crushing. The protective cover 18 completely covers the heating wire to prevent heat generated from the heating wire from leaking out, resulting in poor heating effect in the drying compartment 13. The quantity of protection casing 18 and the quantity of through-hole and heating wire are the same, and the quantity of heating wire sets up 1 at least, when the quantity of heating wire is a plurality of, a plurality of protection casings 18 communicate each other through breather pipe 19, blow to every protection casing 18 through the breather pipe 19 that communicates each other, blow into stoving storehouse 13 with the heat that the heating wire produced, thereby to on the filter screen 12 and from the cryolite on the filter screen 12 carry out further stoving, and the aperture of filter screen 12 set up according to actual need can, protection casing 18 need set up on the coplanar this moment, avoid increaseing the degree of difficulty of breather pipe 19 intercommunication each other.

Further, a feeding groove 23 is formed in the side wall of the barrel 2, a feeding pipe 24 is arranged at the bottom of the feeding groove 23, and the feeding pipe 24 is communicated with the side wall of the barrel 2. It should be noted that: the inlet pipe 24 is located one side of gravity piece 7, avoid cryolite can fall to the top of gravity piece 7 when the feeding, not only aggravated the heavy burden of cylinder 10, still there is the cryolite of omission not broken, adopt this kind of mode, can carry out the feeding at the in-process that carries out the breakage to the cryolite, need not close cylinder 10, and in order to avoid too big cryolite, can not make the cryolite fall to the below of cutter 9, can lean on the one end setting of keeping away from inlet pipe 24 with one-level broken subassembly. The cylinder 10 may also be controlled by the controller such that the cylinder 10 feeds during the raising. The present embodiment is preferably the first. Furthermore, the feeding pipe 5, the discharging pipe 21 and the feeding pipe 24 are respectively provided with valves. Each valve is controlled by a controller respectively to control the opening and closing time of each valve.

when the utility model is used, the cryolite which is just dehydrated is poured into the feeding groove 23, so that the cryolite falls into the cylinder body 2, and the cylinder 10 is started at the moment, so that the cylinder 10 does telescopic rotary motion and can also do rotary telescopic motion, thereby crushing the cryolite; before the cryolite is crushed, the heating block 6 can be heated to raise the temperature of the air in the blanking hopper 4, and the cryolite is primarily dried in the process that the crushed cryolite falls down from the meshes; then, the primarily crushed cryolite falls into a feed hopper 14 through a discharge pipe and enters a shell 11, a motor 17 can be started at the moment, a heating wire is heated, and a fan 20 is started, the motor 17 drives a blade 16 on a rotating shaft 15 to rotate, so that the cryolite is further crushed until the cryolite is crushed to fall from meshes on a filter screen 12, and in the process that the cryolite falls into a material containing groove 22, the fan 20 blows heat generated by the heating wire into a drying bin 13, so that the cryolite falling from the filter screen 12 is further dried; finally, the cryolite in the holding tank 22 is conveyed to the next step (drying).

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. the utility model provides a cryolite centrifugal filter cake coarse crushing device, includes frame (1), the one-level coarse crushing unit of setting in frame (1) and the second grade coarse crushing unit of setting in one-level coarse crushing unit below, its characterized in that: the primary coarse crushing unit comprises a barrel (2), a primary crushing assembly vertically arranged in the barrel (2), a screen plate (3) arranged at the bottom of the barrel (2) and a discharging hopper (4) arranged below the screen plate (3), wherein a discharging pipe (5) is arranged at the bottom of the discharging hopper (4), and a plurality of heating blocks (6) are arranged on the outer side wall of the discharging hopper (4);

the one-level crushing assembly comprises a gravity block (7), a connecting shaft (8) fixed to the top of the gravity block (7) and a plurality of cutters (9) arranged at the bottom of the gravity block (7), the cutters (9) are arranged in a criss-cross mode to be in a grid shape, and the connecting shaft (8) extends out of the top of the barrel body (2) and is connected with the cylinder (10).

2. A cryolite cake centrifuge crusher as claimed in claim 1 wherein: the coarse crushing unit of second grade includes casing (11) and the horizontal second grade broken assembly who sets up in casing (11), the bottom of casing (11) is equipped with filter screen (12), the below of filter screen (12) is equipped with stoving storehouse (13), the top of casing (11) is equipped with feeder hopper (14), feeder hopper (14) with unloading pipe (5) correspond from top to bottom.

3. a cryolite cake centrifuge crusher as claimed in claim 2 wherein: the secondary crushing assembly comprises a rotating shaft (15) and a plurality of blades (16) arranged on the rotating shaft (15), and one end of the rotating shaft (15) is connected with a motor (17).

4. A cryolite cake centrifuge crusher as claimed in claim 2 wherein: the drying device is characterized in that a plurality of through holes are formed in the side wall of the drying bin (13), each through hole is provided with an electric heating wire, each electric heating wire is provided with a protective cover (18), each protective cover (18) is communicated with each other through a vent pipe (19), and the other end of each vent pipe (19) is connected with a fan (20).

5. A cryolite cake centrifuge crusher as claimed in claim 2 wherein: the bottom of stoving storehouse (13) is equipped with discharging pipe (21), the below of discharging pipe (21) is equipped with flourishing silo (22).

6. A cryolite centrifugal filter cake coarse comminution device of claim 5, characterized in that: be provided with on the lateral wall of barrel (2) feed chute (23), the bottom of feed chute (23) is equipped with inlet pipe (24), inlet pipe (24) with the lateral wall of barrel (2) is linked together.

7. A cryolite filter cake coarse comminution device of claim 6, characterized in that: and valves are respectively arranged on the discharging pipe (5), the discharging pipe (21) and the feeding pipe (24).

8. A cryolite cake centrifuge crusher as claimed in claim 1 wherein: the air cylinder (10) is a telescopic rotary air cylinder.

9. A cryolite centrifugal filter cake coarse comminution device of claim 4, characterized in that: the protective covers (18) are arranged on the same plane.