Slag salvaging grab bucket of crown block

Abstract

The utility model discloses a slag salvaging grab bucket of a crown block, and relates to the technical field of electrolytic aluminum. The device comprises a slag storage box and a slag salvaging pipe, a conveying motor is clamped and fixed to the center of the top of the slag storage box, a first hydraulic cylinder is rotationally clamped to the peripheral face of the slag storage box, the slag salvaging pipe is slidably clamped to the center of the bottom of the slag storage box, bottom covers are rotationally clamped to the two sides of the bottom of the slag salvaging pipe, and a spiral conveying assembly is rotationally clamped to the inner side of the slag salvaging pipe. A second hydraulic cylinder is arranged at the top of the slag salvaging pipe. By arranging the slag storage box and the slag salvaging pipe, the slag salvaging grab bucket solves the problems that when the slag salvaging grab bucket is used for salvaging waste slag in an electrolytic tank, the salvaging amount of the salvaging waste slag is limited, multiple times of salvaging are needed, the operation wastes time and labor, when a large amount of high-temperature waste slag is moved, the contact area of the high-temperature waste slag and the grab bucket is limited, the grab bucket is more easily deformed, and the service life of the grab bucket is prolonged. And the service life of the grab bucket is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic aluminum, in particular to a slag grab bucket of a crane. Background Art

[0002] Electrolytic aluminum is aluminum obtained by electrolysis. Modern electrolytic aluminum industry production adopts cryolite-alumina molten salt electrolysis method. Molten cryolite is solvent, alumina is solute, carbonite is anode, and aluminum liquid is cathode. After a strong direct current is passed, an electrochemical reaction is carried out at the two electrodes in the electrolytic cell at 950℃-970℃. During the aluminum electrolysis process, a large amount of residue is usually generated in the electrolyte. In order to avoid affecting the subsequent electrolytic reaction, a slag scooping structure is needed to salvage the waste slag, but it still has the following disadvantages in actual use:

[0003] The utility model with publication number CN202016801U discloses a slag grab bucket for aluminum electrolysis lifting equipment, which is characterized in that the left and right grab buckets are respectively connected to the two sides of the crossbeam through the left and right hanging plates, the left grab bucket or the right grab bucket is connected to the cylinder piston rod through the driving plate, and the left grab bucket or the right grab bucket is connected to a driving rod, and the other end of the driving rod is connected to the hanging plate on the right grab bucket or the left grab bucket. When the slag grab bucket is used to slag, the structure of the grab bucket is relatively simple and the amount of waste slag that can be accommodated is small. It is necessary to salvage the waste slag in the electrolytic cell for many times, and the operation is time-consuming and laborious.

[0004] When the slag grab is used to salvage waste slag for a long time, the temperature of the electrolyte is high and most of the electrolytes are corrosive, which will shorten the service life of the grab. When the grab is moving a large amount of high-temperature waste slag, the contact area of ​​the grab with the large amount of high-temperature waste slag is limited, and the grab itself is prone to deformation during the transportation of the waste slag, resulting in a reduction in its service life. Utility Model Content

[0005] The utility model aims to provide a slag grab for an overhead crane, which solves the problems that the amount of waste slag that can be salvaged by the slag grab is limited when salvaging waste slag in an electrolytic cell, multiple salvage operations are required, and the operation is time-consuming and labor-intensive; when a large amount of high-temperature waste slag is moved, the contact area between the high-temperature waste slag and the grab is limited, which makes it more likely to cause deformation of the grab and shorten the service life of the grab.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a slag grab bucket of a crane, comprising a slag storage box and a slag scooping pipe, wherein a feeding motor is fixedly connected at the center of the top of the slag storage box, a first hydraulic cylinder is rotatably connected to the outer peripheral surface of the slag storage box, a slag scooping pipe is slidably connected to the center of the bottom of the slag storage box, bottom covers are rotatably connected to the two sides of the bottom of the slag scooping pipe, a spiral feeding assembly is rotatably connected to the inner side of the slag scooping pipe, and a second hydraulic cylinder is arranged on the top of the slag scooping pipe;

[0008] The feeding motor can drive the spiral feeding assembly to rotate, so that the waste slag in the electrolytic cell is stored in the slag storage box along with the spiral feeding assembly, so that the slag grab can carry and transport a large amount of waste slag at the same time, thereby improving the waste slag treatment efficiency; the first hydraulic cylinder can drive the bottom cover to rotate, so that the grab can close the bottom of the slag scoop pipe after the waste slag is salvaged, so as to prevent the waste slag from falling back into the electrolytic cell under the action of gravity, and the slag scoop pipe can further increase the amount of waste slag that the slag grab can carry; the slag storage box, the slag scoop pipe and the spiral feeding assembly can increase the contact area between a large amount of waste slag and the grab, disperse the damage to the grab caused by the high-temperature waste slag, and extend the service life of the grab; after the grab is used, the second hydraulic cylinder can drive the slag scoop pipe to move upward, and part of it can be stored in the slag storage box, thereby improving space utilization.

[0009] Furthermore, a mounting plate is welded and fixed on the top of the outer peripheral surface of the slag storage box, a filter screen is inserted through the outer peripheral surface of the slag storage box, a driving rod is rotatably inserted at the bottom of the feeding motor, and the driving rod is inserted through the center of the top of the slag storage box;

[0010] The feeding motor can drive the driving rod to rotate, and further drive the spiral feeding assembly to rotate, so that the waste slag enters the slag storage box along the slag scoop pipe for accumulation, thereby increasing the amount of waste slag that can be salvaged by a single grab and improving the processing efficiency. When the waste slag enters the slag storage box, the electrolyte contained in the waste slag can be discharged through the filter screen and flow back into the electrolytic cell, ensuring the efficient salvage of the waste slag.

[0011] Furthermore, a first telescopic tube is slidably connected to one end of the bottom of the first hydraulic cylinder, a rotating shaft is connected to one end of the first telescopic tube, and the rotating shaft is located at the other end of the first telescopic tube relative to the first hydraulic cylinder;

[0012] The first hydraulic cylinder can drive the first telescopic tube to extend and retract, and further drive the bottom cover to rotate in the vertical direction, so as to close and open the bottom of the slag scooping tube, and prevent the waste slag from falling back into the electrolytic cell under the action of gravity during the waste slag transportation. The slag scooping tube can be repeatedly opened and closed to grab the waste slag, limit the position of the waste slag, and assist the spiral feeding assembly in conveying the waste slag. The first hydraulic cylinder can be provided with a protective structure to protect it, so as to prevent the first hydraulic cylinder from being damaged by contact with the sputtered high-temperature electrolyte.

[0013] Furthermore, a second telescopic tube is clamped on the top of the slag scooping tube, a second hydraulic cylinder is slidably clamped on the top of the second telescopic tube, the second hydraulic cylinder is clamped on the top of the slag storage box, the second telescopic tube is inserted through the top of the slag storage box, a rotating connection assembly is welded and fixed on the bottom of the bottom cover, and the rotating connection assembly is clamped through one side of the rotating shaft;

[0014] The second hydraulic cylinder can drive the second telescopic tube to extend and retract, and further drive the slag scooping tube to move up and down, so that when the grab bucket is not needed, the slag scooping tube can be partially stored in the slag storage box, thereby improving space utilization.

[0015] Furthermore, a support frame is welded and fixed on the top of the slag scoop pipe, the spiral feed assembly penetrates and is clamped on the bottom of the support frame, a driving groove is opened in the center of the top of the spiral feed assembly, and the driving rod is slidably inserted into the inner side of the driving groove;

[0016] The slag scoop pipe can further increase the amount of waste slag that the slag scoop grab can carry. The slag storage box, slag scoop pipe and spiral feeding assembly can increase the contact area between a large amount of waste slag and the grab, disperse the damage to the grab caused by high-temperature waste slag, and extend the service life of the grab.

[0017] The utility model has the following beneficial effects:

[0018] The utility model provides a slag storage box and a slag scooping pipe, which solves the problem that when a slag scooping bucket is scooping slag, due to the simple structure of the grab bucket, the amount of waste slag that can be accommodated is small, and the waste slag in the electrolytic cell needs to be salvaged many times, which is time-consuming and laborious. After the overhead crane drives the slag scooping bucket into the inner side of the electrolyte, the feeding motor drives the spiral feeding assembly to rotate, so that the waste slag enters the slag storage box along the slag scooping pipe for accumulation, thereby increasing the amount of waste slag that can be salvaged by the grab bucket in a single time, and the slag scooping pipe can further increase the amount of waste slag that the slag scooping bucket can carry, thereby improving the processing efficiency.

[0019] The utility model provides a slag storage box and a slag scooping pipe, thereby solving the problem that when the slag scooping grab bucket is used to salvage waste slag for a long time, the temperature of the electrolyte is high and most of the electrolytes are corrosive, which will shorten the service life of the grab bucket. In addition, when the grab bucket drives a large amount of high-temperature waste slag to move, the contact area of ​​the grab bucket with the large amount of high-temperature waste slag is limited, and the grab bucket itself is easily deformed during the waste slag transportation process, resulting in a shortened service life. After the waste slag enters the slag scooping pipe and the slag storage box, the contact area between the large amount of waste slag and the grab bucket can be increased through the slag storage box, the slag scooping pipe and the spiral feeding assembly, so as to disperse the damage to the grab bucket caused by the high-temperature waste slag and extend the service life of the grab bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural effect diagram of the utility model;

[0022] Figure 3 This is a structural diagram of the slag storage box of the utility model;

[0023] Figure 4 This is a structural diagram of the slag scooping pipe of the utility model;

[0024] Figure 5 It is a cross-sectional view of the slag scooping pipe of the utility model.

[0025] Reference numerals:

[0026] 1. Slag storage box; 101. Feeding motor; 102. First hydraulic cylinder; 103. Mounting plate; 104. Filter screen; 105. First telescopic tube; 106. Rotating shaft; 107. Driving rod; 2. Slag scooping pipe; 201. Bottom cover; 202. Second hydraulic cylinder; 203. Screw feeding assembly; 204. Rotating connection assembly; 205. Second telescopic tube; 206. Support frame; 207. Driving slot. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] See also Figure 1-5 As shown, the utility model is a slag grab bucket of an overhead crane, comprising a slag storage box 1 and a slag scooping pipe 2, a feeding motor 101 is fixedly connected at the center of the top of the slag storage box 1, a first hydraulic cylinder 102 is rotatably connected to the outer peripheral surface of the slag storage box 1, a slag scooping pipe 2 is slidably connected to the center of the bottom of the slag storage box 1, a bottom cover 201 is rotatably connected to both sides of the bottom of the slag scooping pipe 2, a spiral feeding assembly 203 is rotatably connected to the inner side of the slag scooping pipe 2, and a second hydraulic cylinder 202 is arranged on the top of the slag scooping pipe 2;

[0029] The grab bucket is moved into the electrolyte by the overhead crane, the bottom cover 201 is driven to rotate and open by the first hydraulic cylinder 102, and the feeding motor 101 is started to drive the spiral feeding assembly 203 to rotate, so that the waste slag in the electrolytic cell enters the slag storage box 1 for storage as the spiral feeding assembly 203 rotates, and the bottom cover 201 is controlled to be opened and closed repeatedly to grab the waste slag, limit the position of the waste slag, and assist the spiral feeding assembly 203 in transporting the waste slag. After a certain amount of waste slag is salvaged, the bottom cover 201 is controlled to be closed, and the grab bucket is moved to the corresponding position by the overhead crane, and the waste slag in the grab bucket is discharged by opening the bottom cover 201 and driving the spiral feeding assembly 203 to rotate in the opposite direction. After using the grab bucket, the slag scooping pipe 2 is driven to move upward by the second hydraulic cylinder 202, so that part of the slag scooping pipe 2 is stored in the slag storage box 1.

[0030] Among them Figure 1-3As shown, a mounting plate 103 is welded and fixed on the top of the outer peripheral surface of the slag storage box 1, a filter screen 104 is inserted through the outer peripheral surface of the slag storage box 1, a driving rod 107 is rotatably inserted at the bottom of the feeding motor 101, and the driving rod 107 is inserted through the center of the top of the slag storage box 1, and a first telescopic tube 105 is slidably inserted at one end of the bottom of the first hydraulic cylinder 102, and a rotating shaft 106 is inserted at one end of the first telescopic tube 105, and the rotating shaft 106 is located at the other end of the first telescopic tube 105 relative to the first hydraulic cylinder 102;

[0031] The grab bucket and the overhead crane are connected through the mounting plate 103. When salvaging the waste slag, the first hydraulic cylinder 102 drives the first telescopic tube 105 to contract, further drives the bottom cover 201 to rotate and open, and starts the feeding motor 101 to drive the spiral feeding assembly 203 to rotate, so that the waste slag in the electrolytic cell enters the slag storage box 1 for storage as the spiral feeding assembly 203 rotates. At the same time, the repeated opening and closing of the bottom cover 201 is controlled to grab and limit the waste slag, and assist the spiral feeding assembly 203 in conveying the waste slag. After the waste slag enters the slag storage box 1, the electrolyte that enters the slag storage box 1 with the waste slag flows back into the electrolytic cell through the filter screen 104.

[0032] Among them Figure 1 , 2 As shown in , 4 and 5, a second telescopic tube 205 is clamped on the top of the slag scooping pipe 2, a second hydraulic cylinder 202 is slidably clamped on the top of the second telescopic tube 205, the second hydraulic cylinder 202 is clamped on the top of the slag storage box 1, the second telescopic tube 205 is inserted through the top of the slag storage box 1, a rotating connection component 204 is welded and fixed at the bottom of the bottom cover 201, the rotating connection component 204 is clamped through one side of the rotating shaft 106, a support frame 206 is welded and fixed at the top of the slag scooping pipe 2, a spiral feeding component 203 is clamped through the bottom of the support frame 206, a driving groove 207 is opened in the center of the top of the spiral feeding component 203, and the driving rod 107 is slidably inserted into the inner side of the driving groove 207;

[0033] When salvaging waste slag, the second hydraulic cylinder 202 drives the second telescopic tube 205 to stretch, further drives the slag scooping tube 2 to move downward, so that the slag scooping tube 2 is inserted into the electrolyte, and the feeding motor 101 drives the spiral feeding assembly 203 to rotate through the driving rod 107, so that the waste slag moves upward along the slag scooping tube 2 and is stored in the slag storage box 1. When a large amount of waste slag is accumulated in the slag scooping tube 2 in the slag storage box 1, the bottom cover 201 is rotated to close, and the grab bucket is moved to a suitable position by the overhead crane to discharge the waste slag. After the waste slag is cleaned, the second hydraulic cylinder 202 drives the slag scooping tube 2 to move upward, so that part of the slag scooping tube 2 is stored in the slag storage box 1.

[0034] The specific working principle of the utility model is as follows: the grab bucket and the overhead crane are connected through the mounting plate 103. When salvaging waste slag, the grab bucket is moved to the upper side of the electrolytic cell through the overhead crane, and the slag storage box 1 is suspended on the upper side of the electrolyte. The second hydraulic cylinder 202 drives the second telescopic tube 205 to stretch, and further drives the slag scooping tube 2 to move downward, so that the slag scooping tube 2 is inserted into the electrolyte. The first hydraulic cylinder 102 drives the first telescopic tube 105 to shrink, and further drives the bottom cover 201 to rotate and open, and the feeding motor 101 is started to drive the spiral feeding assembly 203 to rotate, so that the waste slag is salvaged. It moves upward along the slag scooping pipe 2 and is stored in the slag storage box 1. The electrolyte that enters the slag storage box 1 with the waste slag flows back into the electrolytic cell through the filter screen 104. At the same time, the repeated opening and closing of the bottom cover 201 is controlled to grab and limit the waste slag, and the auxiliary spiral feeding component 203 is used to transport the waste slag. When a large amount of waste slag is accumulated in the slag scooping pipe 2 in the slag storage box 1, the bottom cover 201 is rotated to close, and the grab bucket is moved to a suitable position by the overhead crane to discharge the waste slag. After the waste slag is cleaned, the second hydraulic cylinder 202 drives the slag scooping pipe 2 to move upward, so that part of the slag scooping pipe 2 is stored in the slag storage box 1.

[0035] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A slag grab bucket for an overhead crane, comprising a slag storage box (1) and a slag grab pipe (2), characterized in that: A feeding motor (101) is fixedly connected to the center of the top of the slag storage box (1), a first hydraulic cylinder (102) is rotatably connected to the outer peripheral surface of the slag storage box (1), a slag scooping pipe (2) is slidably connected to the center of the bottom of the slag storage box (1), bottom covers (201) are rotatably connected to the two sides of the bottom of the slag scooping pipe (2), a spiral feeding assembly (203) is rotatably connected to the inner side of the slag scooping pipe (2), and a second hydraulic cylinder (202) is arranged on the top of the slag scooping pipe (2).

2. The slag grab bucket of an overhead crane according to claim 1, characterized in that: A mounting plate (103) is welded and fixed to the top of the outer peripheral surface of the slag storage box (1), a filter screen (104) is inserted through the outer peripheral surface of the slag storage box (1), a driving rod (107) is rotatably inserted into the bottom of the feeding motor (101), and the driving rod (107) is inserted through the center of the top of the slag storage box (1).

3. The slag grab bucket of an overhead crane according to claim 1, characterized in that: A first telescopic tube (105) is slidably engaged at one end of the bottom of the first hydraulic cylinder (102), a rotating shaft (106) is engaged at one end of the first telescopic tube (105), and the rotating shaft (106) is located at the other end of the first telescopic tube (105) relative to the first hydraulic cylinder (102).

4. The slag grab bucket of an overhead crane according to claim 3, characterized in that: The top of the slag scooping pipe (2) is clamped with a second telescopic pipe (205), the top of the second telescopic pipe (205) is slidably clamped with a second hydraulic cylinder (202), the second hydraulic cylinder (202) is clamped to the top of the slag storage box (1), the second telescopic pipe (205) is inserted through the top of the slag storage box (1), and a rotating connection component (204) is welded and fixed to the bottom of the bottom cover (201), and the rotating connection component (204) is clamped through one side of the rotating shaft (106).

5. The slag grab bucket of an overhead crane according to claim 2, characterized in that: A support frame (206) is welded and fixed to the top of the slag scoop pipe (2), the spiral feed assembly (203) penetrates and is clamped on the bottom of the support frame (206), a driving groove (207) is opened in the center of the top of the spiral feed assembly (203), and the driving rod (107) is slidably inserted into the inner side of the driving groove (207).

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