Feeding device of refining furnace

Abstract

The utility model discloses a feeding device of a refining furnace. The feeding device comprises a discharging trolley and a forklift. And raw materials needing to be put into the refining furnace are put into the discharging trolley. The forklift moves, the pallet fork is inserted into the two insertion openings, and the pallet fork and the insertion openings are in a matched state. A hydraulic system of the forklift drives the lifting part and the pallet fork to move upwards, and the discharging trolley is lifted upwards. The forklift moves to the position beside the refining furnace, and the discharging trolley correspondingly moves to the position over the refining furnace. The rotating cylinder drives the pallet fork to rotate, the discharging trolley is rotated, an opening of the discharging trolley faces one side, and raw materials in the carriage fall into the refining furnace from the opening. And the rotating cylinder drives the pallet fork to reset, and then the discharging trolley restores until the opening faces upwards. And the forklift leaves the refining furnace. And a hydraulic system of the forklift drives the lifting part and the pallet fork to descend, and the discharging trolley is put back to the ground. The forklift moves, the pallet fork leaves the two insertion openings, and the two insertion openings are disengaged. The device has the advantages of being simple in structure, convenient to operate and capable of improving efficiency.

Description

Technical Field

[0001] The utility model relates to a refining furnace, in particular to a charging device for the refining furnace. Background Art

[0002] Refining furnaces are typically used to melt waste materials into a liquid state at high temperatures. This liquid is then transferred to a holding furnace, where it is poured into molds by industrial robots to form the desired workpiece. The waste typically comes from scrap edges knocked off workpieces and parts discarded during the production process. Because the temperature around the refining furnace is relatively high, a loading device is typically used to pour the waste into the refining furnace. Existing loading devices typically utilize belt conveyors, which present challenges: waste is typically collected in a discharge cart, which requires transferring the waste from the cart to a conveyor belt, resulting in a high workload and reduced efficiency. Utility Model Content

[0003] The present application provides a charging device for a refining furnace, which can solve the problems raised in the background technology.

[0004] In the present application, a charging device for a refining furnace is provided, comprising:

[0005] The material unloading car comprises: a carriage with an open top surface for placing raw materials and two insertion openings arranged side by side on the bottom surface of the carriage;

[0006] The forklift is further provided with a rotating cylinder between the lifting part and the forks which can be fitted into the two insertion ports. The rotating cylinder is used to enable the forks to rotate relative to the lifting part around a horizontal first axis.

[0007] In some embodiments, for the two fork bars of the fork, the width of the fork head portion gradually increases as it approaches the lifting portion.

[0008] In some embodiments, the frame connected to the lifting part of the forklift is further provided with a normally open travel switch; the normally open travel switch is triggered when the lifting part rises to the upper limit position, and is used to turn on the operation of the rotating cylinder after being triggered.

[0009] In some embodiments, the lifting part is further provided with a normally closed travel switch; the normally closed travel switch is triggered when the fork rotates to the horizontal position, and after being triggered, is used to switch on the operation of the hydraulic cylinder that drives the lifting part to rise and fall.

[0010] In some embodiments, when the fork and the insertion port are in a mating state, at least one of the two side panels of the carriage parallel to the first axis is inclined.

[0011] In some embodiments, the bottom surface of the unloading trolley is further provided with rollers.

[0012] In some embodiments, the bottom plates of the two insertion ports are both threadedly connected with bolts; when the fork and the insertion port are in a mating state, the bolts can press upward against the fork.

[0013] In summary, in the present application, a loading device for a refining furnace includes a discharge car and a forklift. The raw materials to be put into the refining furnace are placed in the discharge car. The forklift moves, and the forks are inserted into the two insertion ports, and the two enter a mating state. The hydraulic system of the forklift drives the lifting part and the forks to move upward, lifting the discharge car upward. The forklift moves to the side of the refining furnace, and the discharge car is correspondingly positioned directly above the refining furnace. The rotary cylinder drives the forks to rotate, rotating the discharge car so that the opening of the discharge car faces one side, and the raw materials in the car body fall into the refining furnace from the opening. The rotary cylinder drives the forks to reset, and the discharge car then returns to the position with the opening facing upward. The forklift leaves the refining furnace. The hydraulic system of the forklift drives the lifting part and the forks to descend, placing the discharge car back on the ground. The forklift moves, the forks leave the two insertion ports, and the two are released from mating. The beneficial effects are: simple structure, easy operation, and improved efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0015] Figure 1 A side view of the present application;

[0016] Figure 2 This is a schematic diagram of the material unloading car;

[0017] Figure 3 This is a side view of the normally open limit switch on the frame;

[0018] Figure 4 It is a side view of the normally closed limit switch on the lifting part.

[0019] In the figure,

[0020] 1. Unloading car; 1a. Carriage; 1a1. Unloading side plate; 1a2. Roller; 1b. Insertion port;

[0021] 2. Forklift; 2a. Rotating cylinder; 2b. Lifting unit; 2b1. Normally closed travel switch; 2c. Forks; 2d. Frame; 2d1. Normally open travel switch. DETAILED DESCRIPTION

[0022] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in this disclosure should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprising" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0023] See also Figure 1 A charging device for a refining furnace includes a charging vehicle 1 and a forklift 2.

[0024] See also Figure 2 The unloading car 1 includes a carriage 1a and two insertion ports 1b.

[0025] The top of carriage 1a is open for placing raw materials to be fed into the refining furnace. Two insertion ports 1b are arranged side by side on the bottom of carriage 1a. More specifically, insertion ports 1b can be a section of square pipe welded to the bottom of carriage 1a.

[0026] See also Figure 1 The forklift 2 is similar to the existing forklift 2, except that a rotary cylinder 2a is provided between the lifting unit 2b and the forks 2c. The rotary cylinder 2a is used to rotate the forks 2c relative to the lifting unit 2b about a first horizontal axis. This means that the forks 2c can move up and down on the frame 2d of the forklift 2 along with the lifting unit 2b, and can also rotate relative to the lifting unit 2b about the first horizontal axis.

[0027] The fork 2c has two horizontal forks, which can fit into the two insertion ports 1b. Loading process:

[0028] S1. The raw materials to be put into the refining furnace are placed in the discharge car 1;

[0029] S2, the forklift 2 moves, and the fork 2c is inserted into the two insertion ports 1b, and the two enter the mating state;

[0030] S3, the hydraulic system of the forklift 2 drives the lifting part 2b and the fork 2c to move upward, lifting the unloading vehicle 1 upward;

[0031] S4, forklift 2 moves to the side of the refining furnace, and unloading vehicle 1 moves to the top of the refining furnace accordingly;

[0032] S5, the rotary cylinder 2a drives the fork 2c to rotate, rotating the unloading car 1 so that the opening of the unloading car 1 faces one side, and the raw materials in the car 1a fall into the refining furnace from the opening;

[0033] S6, the rotary cylinder 2a drives the fork 2c to reset, and the unloading vehicle 1 then returns to the position with the opening facing upwards;

[0034] S7, forklift 2 leaves the refining furnace;

[0035] S8, the hydraulic system of the forklift 2 drives the lifting part 2b and the fork 2c to descend, and puts the unloading vehicle 1 back to the ground;

[0036] S9: The forklift 2 moves, and the forks 2c leave the two insertion openings 1b, and the two are released from engagement.

[0037] In some embodiments, for the two fork bars of the fork 2c, the width of the fork head portion gradually increases as it approaches the lifting portion 2b.

[0038] In this way, when the fork bar just enters the insertion port 1b, the width of the insertion port 1b is greater than the fork head part, making it easier for the fork head part to enter the insertion port 1b and reducing the positioning accuracy requirement; as the fork bar gradually penetrates into the insertion port 1b, the width of the fork bar becomes the same as the width of the insertion port 1b.

[0039] See also Figure 3 In some embodiments, the frame 2d of the forklift 2 to which the lifting portion 2b is connected is further provided with a normally open limit switch 2d1. The normally open limit switch 2d1 is triggered when the lifting portion 2b rises to the upper limit position, and is used to turn on the operation of the rotary cylinder 2a.

[0040] More specifically, the rotary cylinder 2a can be a rack and pinion type, connected to the hydraulic system of the forklift 2, with the first solenoid valve controlling the hydraulic system to drive the movement of the rack. The first solenoid valve has three working positions: when the first electromagnet on one side is turned on, it is the first working position, driving the rack to slide forward; when the first electromagnet on the other side is turned on, it is the second working position, driving the rack to slide backward; when the first electromagnets on both sides are not turned on, it is the middle working position, and the rack remains in its current position. The normally open limit switch 2d1 is connected to the control circuit of the two first electromagnets. If the normally open limit switch 2d1 is not closed, neither of the two first electromagnets can be turned on. In other words, if the lifting part 2b does not rise to the upper limit, it is impossible to operate the rotary cylinder 2a to rotate the fork 2c.

[0041] See also Figure 4 In some embodiments, the lifting portion 2b is further provided with a normally closed travel switch 2b1. The normally closed travel switch 2b1 is triggered when the fork 2c rotates to a horizontal position. Once triggered, it is used to activate the operation of the hydraulic cylinder that drives the lifting portion 2b to move upward and downward.

[0042] More specifically, the hydraulic cylinder is connected to the hydraulic system of forklift 2, and a second solenoid valve controls the hydraulic system to drive the movement of the lifting portion 2b. The second solenoid valve also has three working positions: when the second electromagnet on one side is turned on, it is the first working position, driving the mounting portion to rise; when the second electromagnet on the other side is turned on, it is the second working position, driving the mounting portion to descend; when the second electromagnets on both sides are turned off, it is the intermediate working position, and the mounting portion remains in its current position. The normally closed limit switch 2b1 is connected to the control circuit of the two second electromagnets. When the normally closed limit switch 2b1 is off, neither of the two first electromagnets can be turned on. In other words, if the fork 2c is not rotated to a horizontal position, the hydraulic cylinder cannot be operated to raise or lower the mounting portion.

[0043] See also Figure 2 In some embodiments, when the fork 2c and the insertion port 1b are in a mating state, at least one of the two side panels of the carriage 1a parallel to the first axis is inclined.

[0044] When the unloading trolley 1 is rotated so that the opening of the unloading trolley 1 faces one side, the opening is rotated toward the side plate, and the materials in the carriage 1a can fall more conveniently along the inclined side plate.

[0045] See also Figure 2 In some embodiments, the bottom surface of the unloading vehicle 1 is further provided with rollers 1a2. More specifically, the rollers 1a2 may be a pair of fixed-direction rollers and another pair of universal wheels for steering. The unloading vehicle 1 can be conveniently and directly moved by the rollers 1a2.

Claims

1. A charging device for a refining furnace, characterized in that: include: The material unloading vehicle (1) comprises: a carriage (1a) for placing raw materials and having an open top surface, and two insertion openings (1b) arranged side by side on the bottom surface of the carriage (1a); A forklift (2) is provided with a rotary cylinder (2a) between a lifting portion (2b) and a fork (2c) capable of being fitted into two insertion ports (1b). The rotary cylinder (2a) is used to enable the fork (2c) to rotate relative to the lifting portion (2b) around a horizontal first axis. The frame (2d) connected to the lifting part (2b) in the forklift (2) is also provided with a normally open travel switch (2d1); the normally open travel switch (2d1) is triggered when the lifting part (2b) rises to the upper limit position, and is used to connect the operation of the rotating cylinder (2a) after being triggered; The lifting part (2b) is also provided with a normally closed travel switch (2b1); the normally closed travel switch (2b1) is triggered when the fork (2c) rotates to the horizontal position, and after being triggered, is used to connect the operation of the hydraulic cylinder that drives the lifting part (2b) to rise and fall.

2. A charging device for a refining furnace according to claim 1, characterized in that: For the two fork bars of the fork (2c), the width of the fork head portion gradually increases as it approaches the lifting portion (2b).

3. The charging device for a refining furnace according to claim 1, characterized in that: When the fork (2c) and the insertion port (1b) are in a mating state, at least one of the two side plates of the carriage (1a) parallel to the first axis is inclined.

4. The charging device for a refining furnace according to claim 1, characterized in that: The bottom surface of the unloading vehicle (1) is also provided with rollers (1a2).

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