CN211594790U - Aluminum electrolysis waste cell lining pre-leaching feeding device - Google Patents

Abstract

A pre-leaching feeding device for an aluminum electrolysis waste cell lining comprises a base (1) and a hopper (4) which are arranged at the top of a leaching tank; a spherical baffle (8) is arranged at the lower opening of the base, a crank arm (6) extending into the base from the outer side is connected to the center of the bottom surface of the spherical baffle, the crank arm comprises a vertical ejector rod section and a crank arm section extending outwards and then turning upwards, a balance weight (7) is arranged at the outer end of the crank arm section, and a middle fulcrum (5) of a vertical rod of the crank arm section is fixed on the leaching pond; the center of the hopper is provided with a suspender (2) which can move up and down, the bottom end of the suspender is provided with a conical bottom plug (9) which can plug a discharge hole at the bottom of the hopper, the upper part in the hopper is provided with a limit cross beam (10), and the upper part of the suspender is welded with a limit baffle (3) which can fall and be placed on the limit cross beam. The utility model discloses can add the broken material of aluminium electroloysis waste tank liner under airtight state in the leaching tank, avoid reinforced in-process broken material to spill over with the gas that the water contact produced in the leaching tank.

Description

Aluminum electrolysis waste cell lining pre-leaching feeding device

Technical Field

The utility model relates to the technical field of aluminum industry solid waste innocent treatment auxiliary equipment, in particular to a feeding device for pre-leaching of aluminum electrolysis waste cell liners and a feeding method thereof.

Background

The waste cell lining is generated when the cell lining structure of the aluminum electrolysis cell is deformed and cracked and the like due to the permeation and corrosion of high-temperature electrolyte to the cell lining in the aluminum electrolysis production process, and the high-temperature aluminum liquid and the electrolyte permeate into the cell lining from the deformed and cracked cracks to cause the abnormal production of the aluminum electrolysis cell and the cell stopping repair. Because the lining of the aluminum electrolytic cell reacts with the electrolyte at high temperature for a long time, a large amount of fluoride and a certain amount of harmful substances are adsorbed, and some toxic substances are generated at the same time, so that the lining becomes a factor causing harm to the environment during the stockpiling. The new aluminum electrolysis cell generally needs to be stopped for overhaul after being used for 3 to 6 years, so the waste cathode lining is solid hazardous waste which is inevitable in the aluminum electrolysis production process. In the process of heap leaching treatment of the waste tank liners, the crushed materials of the waste tank liners need to be added into a pre-leaching pool for pre-leaching treatment, ammonia gas is generated in the pre-leaching treatment process, and in order to avoid the ammonia gas from overflowing in the charging process, a charging device which is efficient and safe and can prevent the ammonia gas from overflowing is necessary to be developed.

Disclosure of Invention

The utility model aims at providing a feeding device that high efficiency, safety, can effectively the reinforced in-process ammonia of separation spill over, and simple structure, easy to maintain, safe and reliable's useless cell lining of aluminium electroloysis leaches the process in advance.

The utility model adopts the following technical scheme:

a pre-leaching feeding device for an aluminum electrolysis waste cell liner is arranged at the top of a pre-leaching tank and comprises a cylindrical hollow base arranged at the top of the pre-leaching tank and a hopper capable of being placed on the base; the lower opening of the base is provided with an upward convex spherical baffle, the center of the bottom surface of the spherical baffle is connected with a crank arm extending from the outer side, the crank arm comprises a vertical ejector rod section positioned at the center of the top of the spherical baffle and a crank arm section extending outwards from the bottom end of the vertical ejector rod section and then turning upwards, the outer end of the crank arm section is provided with a balance weight, the middle fulcrum of the vertical rod of the crank arm section is fixed on the leaching pond, and the upper opening of the base is funnel-shaped and open; the bottom of hopper is for placing in the uncovered infundibulate of base infundibulate, is provided with the jib that can reciprocate of top area lifting hook at the center of hopper, and the conical bottom stopper that can plug up the conical top of hopper bottom discharge gate upwards is installed to the bottom of jib, and upper portion is provided with limit beam in the hopper, and the welding has the limit baffle that can fall and place on limit beam in jib upper portion.

The utility model discloses the limiting beam who sets up on upper portion in the hopper is the cross roof beam. The top of the hopper is covered with a top cover.

Compared with the prior art, the utility model have following advantage:

(1) the base of the device is arranged on the top cover of the leaching tank, and the broken material of the aluminum electrolysis waste tank liner in the hopper can be directly added into the leaching tank through the base channel in a closed state, so that the pollution to the environment caused by the overflow of harmful gases such as ammonia gas and the like in the adding process of the aluminum electrolysis waste tank liner is avoided, no material flies in the feeding process, and the working environment is effectively improved;

(2) the utility model does not need manual feeding, thereby not only reducing the labor intensity of staff, but also avoiding waste and reducing the material processing cost;

(3) the device of the utility model is simple in structure, the operation is reliable, easy to maintain, convenient operation, safety ring protects.

Drawings

FIG. 1 is a schematic view of the base of the device of the present invention mounted on the top cover of a leaching tank;

FIG. 2 is a schematic structural diagram of the device of the present invention;

FIG. 3 is a schematic view of the device of the present invention during discharging;

fig. 4 is a top view of the hopper.

Detailed Description

As shown in fig. 1 to 4, the feeding device for pre-leaching the aluminum electrolysis waste cell lining is arranged at the top of a pre-leaching tank 11 and comprises a cylindrical hollow base 1 arranged at the top of the pre-leaching tank and a hopper 4 capable of being placed on the base. The lower port of the base 1 is provided with an upward convex spherical baffle 8, the center of the bottom surface of the spherical baffle is connected with a crank arm 6 extending into the outer side, the crank arm comprises a vertical ejector rod section positioned at the center of the top of the spherical baffle and a crank arm section which is extended outwards from the bottom end of the vertical ejector rod section and then turns upwards, a balance weight 7 is arranged at the outer end of the crank arm section, a middle fulcrum 5 of the vertical rod of the crank arm section is fixed on the leaching pool, and the upper port of the base is funnel-shaped and open. The bottom of hopper 4 is for placing the uncovered infundibulate of base infundibulate, is provided with the jib 2 that can reciprocate of top area lifting hook at the center of hopper, and the conical bottom stopper 9 that can plug up the conical top of hopper bottom discharge gate up is installed to the bottom of jib, and upper portion is provided with limit beam 10 in the hopper, and the welding has the limit baffle 3 that can fall and place on limit beam on jib upper portion. The limiting cross beam 10 is a cross beam. The top of the hopper is covered with a top cover. One or more aluminum electrolysis waste cell lining pre-leaching feeding devices can be arranged on one leaching tank according to the size and the treatment capacity of the leaching tank.

Adopt aluminium electroloysis spent bath lining leaches reinforced method of feeding device in advance, is hooking the lifting hook at jib top with the hoisting accessory, upwards mentions jib 2, makes the cone type bottom plug 9 plug up hopper bottom discharge gate, in adding hopper 4 with broken material 12 of aluminium electroloysis spent bath lining, hangs jib 2 after filling the material, places the whole handling of hopper on base 1, as shown in fig. 2. Then the lifting hook is loosened by the lifting device, the conical bottom plug 9 automatically falls for a certain distance under the pressure of the crushed materials, the discharge hole of the hopper is automatically opened to form a closed discharge hole, and the crushed materials automatically fall into the base 1, as shown in fig. 3. Because the upper part of the suspender is provided with the limit baffle 3, the limit beam 10 is arranged in the hopper, after the suspender is loosened, the suspender freely falls in the hopper for a certain distance to the limit beam 10 and is blocked, and the suspender can not fall out of the hopper integrally. Then, the crank arm 6 is manually operated to open the spherical baffle 8, and the crushed materials automatically fall into the leaching tank; after the crushed material in the hopper is put, the crank arm is pulled reversely, the spherical baffle resets, and the lower opening of the base is blocked. Because the tail end of the crank arm is provided with the counterweight 7, the force required for resetting the ball baffle plate in manual operation can be greatly reduced, and the operation is labor-saving and convenient. Then the lifting hook is hooked by the lifting device, and the hopper is lifted and conveyed to be continuously added with the waste slot lining crushed materials.

The device and the method can add the broken material of the aluminum electrolysis waste tank lining into the leaching tank in an airtight state, and avoid the overflow of gases such as ammonia gas generated by the contact of the broken material and the water in the leaching tank in the feeding process.

Claims (3)

1. The feeding device for pre-leaching of the aluminum electrolysis waste cell lining is characterized in that the feeding device is arranged at the top of a pre-leaching tank (11) and comprises a cylindrical hollow base (1) arranged at the top of the pre-leaching tank and a hopper (4) capable of being placed on the base; the lower opening of the base is provided with an upward convex spherical baffle (8), the center of the bottom surface of the spherical baffle is connected with a crank arm (6) extending from the outer side, the crank arm comprises a vertical ejector rod section positioned at the center of the top of the spherical baffle and a crank arm section extending outwards from the bottom end of the vertical ejector rod section and then turning upwards, the outer end of the crank arm section is provided with a balance weight (7), a middle fulcrum (5) of a vertical rod of the crank arm section is fixed on the leaching pond, and the upper opening of the base is funnel-shaped and open; the bottom of hopper is for placing in the uncovered infundibulate of base infundibulate, is provided with jib (2) that can reciprocate of top area lifting hook at the center of hopper, and the conical bottom plug (9) that can stop up the upward awl top of hopper bottom discharge gate is installed to the bottom of jib, and upper portion is provided with spacing crossbeam (10) in the hopper, and welding has the limit baffle (3) of placing on spacing crossbeam that can fall on jib upper portion.

2. The pre-leaching feeding device for the aluminum electrolysis waste cell lining as recited in claim 1, wherein the limiting beam (10) arranged at the upper part in the hopper is a cross beam.

3. The apparatus of claim 1 or 2, wherein a top cover is provided on the top of the hopper.

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