Ferrophosphorus hoisting device for yellow phosphorus electric furnace

Abstract

The utility model relates to a ferrophosphorus hoisting device for a yellow phosphorus electric furnace, and belongs to the technical field of chemical production equipment. In the prior art, iron core hoisting and hoisting clamp hoisting methods have the problems of high-temperature oxidation, short service life, difficult clamping, potential safety hazards and the like. The utility model provides a ferrophosphorus hoisting device for a yellow phosphorus electric furnace. The ferrophosphorus hoisting device comprises a graphite electrode, an iron connecting column and a hoisting device, the graphite electrode is placed in the center of the liquid ferrophosphorus block, the upper end of the graphite electrode is vertically connected with the iron connecting column, and the iron connecting column is connected with the lifting device in a clamped mode. The necking is arranged on the outer side of the graphite electrode, so that the ferrophosphorus block is prevented from sliding off. The iron connecting column comprises a base plate, a threaded column, a stand column and a conical ring, and a threaded hole is formed in the upper end face of the graphite electrode and is in threaded connection with the threaded column. A clamping groove is formed in the axis of the lifting device, a mounting groove is formed in the side of the lifting device, a telescopic rod and a wedge-shaped clamping pin are arranged in the lifting device, and a compression spring sleeves the lifting device. The device has the advantages of high temperature resistance, long service life, safety and reliability in operation, simplicity and convenience in maintenance and the like, and is suitable for efficiently hoisting ferrophosphorus of the yellow phosphorus electric furnace.

Description

Technical Field

[0001] The utility model relates to the field of chemical production equipment and technology, in particular to a ferrophosphorus lifting device for a yellow phosphorus electric furnace. Background Art

[0002] In the production process of yellow phosphorus electric furnace, the lifting of ferrophosphorus is one of the key steps. The existing technology mainly adopts two methods: iron core lifting and lifting by clamps. The iron core lifting method is to place an iron core with a larger bottom and a smaller top in the center of the ferrophosphorus groove, and then lift it out with an electric hoist after the ferrophosphorus cools and solidifies. However, since the temperature of liquid ferrophosphorus is as high as 1200℃, the iron core is prone to severe oxidation at high temperatures, resulting in rapid consumption and short life of the iron core. Frequent replacement of the iron core not only increases production costs, but also affects production efficiency. The lifting method with clamps is to directly clamp the ferrophosphorus after it cools down, but due to the irregular shape of the ferrophosphorus block, it is difficult to clamp and easy to slip, which poses a major safety hazard and may cause equipment damage or personal injury. Therefore, the existing method has obvious deficiencies in safety, efficiency and cost control. It is necessary to develop a new type of ferrophosphorus lifting device to solve these problems. Utility Model Content

[0003] In view of the above problems, the technical problem to be solved by the present invention is to provide a ferrophosphorus lifting device for a yellow phosphorus electric furnace. The ferrophosphorus lifting device is made of graphite electrodes and iron threaded blocks. The oxidation rate of graphite electrodes is slower than that of iron materials under high temperatures, and the service life is long. The ferrophosphorus is not easy to slip during lifting and the safety risk is low.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A ferrophosphorus lifting device for a yellow phosphorus electric furnace comprises a graphite electrode, an iron connecting column and a lifting device. During lifting, the graphite electrode is placed at the center of a liquid ferrophosphorus block, the upper end of the graphite electrode is vertically connected to the iron connecting column, and the iron connecting column and the lifting device are mutually engaged. When the liquid ferrophosphorus block solidifies outside the graphite electrode, the lifting device lifts the graphite electrode and the ferrophosphorus block upward and lifts them out.

[0006] In a preferred embodiment, a neck is provided on the outer side surface of the graphite electrode.

[0007] In a preferred embodiment, the iron connecting column includes a chassis, a threaded column is vertically provided on the lower end surface of the chassis, a column is vertically provided on the upper end surface of the chassis, a semi-dome is provided on the end of the column, and a conical ring that can slide up and down is provided on the column.

[0008] In a preferred solution, a threaded hole is provided on the upper end surface of the graphite electrode, and the threaded hole is threadedly connected to the threaded column.

[0009] In the preferred solution, a slot is provided at the axis of the lifting device, a mounting slot is provided on the side of the lifting device and is connected to the slot, a telescopic rod is placed in the mounting slot, one end of the telescopic rod is provided with a wedge-shaped pin, the other end of the telescopic rod extends out of the mounting slot and is connected to the baffle, a compression spring is provided on the outer side of the telescopic rod, one end of the compression spring is connected to the wedge-shaped pin, and the other end of the compression spring is connected to the inner wall of the mounting slot.

[0010] A yellow phosphorus electric furnace ferrophosphorus lifting device has the following beneficial effects during actual use:

[0011] 1. The oxidation rate of graphite electrodes at high temperatures is much lower than that of iron materials, which effectively extends the service life of the lifting device, reduces the replacement frequency, and reduces production costs;

[0012] 2. The neck design on the outside of the graphite electrode can provide an additional fixing point when lifting the ferrophosphorus block, effectively preventing the ferrophosphorus block from sliding during the lifting process, thereby improving the safety and reliability of the operation;

[0013] 3. The graphite electrode and the iron connecting column are connected by threads, which makes it easy to replace the graphite electrode after it is consumed, and the iron connecting column can be reused, which simplifies maintenance work and improves work efficiency;

[0014] 4. The iron connecting column and lifting device adopt a quick-connect structure, which can be easily connected and helps improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is an exploded schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection method between the graphite electrode and the iron connecting column of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the lifting device of the utility model and the iron connecting column;

[0019] Figure 4 This is a schematic diagram of the lifting state of the utility model;

[0020] Figure 5 This is a schematic diagram of the towing hook state of the utility model.

[0021] In the figure: ferrophosphorus block 1, graphite electrode 2, neck 201, threaded hole 202, iron connecting column 3, chassis 301, threaded column 302, column 303, conical ring 304, semidome 305, lifting device 4, slot 401, mounting slot 402, telescopic rod 403, baffle 404, compression spring 405, wedge-shaped bayonet 406. DETAILED DESCRIPTION

[0022] like Figure 1 As shown, a ferrophosphorus lifting device for a yellow phosphorus electric furnace includes a graphite electrode 2, an iron connecting column 3, and a lifting device 4. During lifting, the graphite electrode 2 is placed at the center of a liquid ferrophosphorus block 1, and the upper end of the graphite electrode 2 is vertically connected to the iron connecting column 3. The iron connecting column 3 and the lifting device 4 are mutually engaged. When the liquid ferrophosphorus block 1 solidifies outside the graphite electrode 2, the lifting device 4 lifts the graphite electrode 2 and the ferrophosphorus block 1 upward and lifts it out.

[0023] The preferred solution is Figure 2 As shown, a neck 201 is provided on the outer side surface of the graphite electrode 2, which can effectively prevent the ferrophosphorus block 1 and the graphite electrode 2 from falling off during the lifting process.

[0024] The preferred solution is Figure 2 As shown, the iron connecting column 3 includes a chassis 301, a threaded column 302 is vertically provided on the lower end surface of the chassis 301, a column 303 is vertically provided on the upper end surface of the chassis 301, a semi-dome 305 is provided at the end of the column 303, and a conical ring 304 that can slide up and down is provided on the column 303.

[0025] The preferred solution is Figure 2 As shown, a threaded hole 202 is formed on the upper end surface of the graphite electrode 2 , and the threaded hole 202 is threadedly connected to the threaded column 302 .

[0026] The preferred solution is Figure 3 As shown, a slot 401 is provided at the axis of the lifting device 4, and a mounting slot 402 is provided on the side of the lifting device 4 and connected to the slot 401. A telescopic rod 403 is placed in the mounting slot 402, and one end of the telescopic rod 403 is provided with a wedge-shaped pin 406. The other end of the telescopic rod 403 extends out of the mounting slot 402 and is connected to the baffle 404. A compression spring 405 is provided on the outer side of the telescopic rod 403, and one end of the compression spring 405 is connected to the wedge-shaped pin 406, and the other end of the compression spring 405 is connected to the inner wall of the mounting slot 402.

[0027] The operating principle of this device is as follows Figures 3 to 5As shown, before use, the graphite electrode 2 is first threadedly connected to the lifting device 4. When the graphite electrode 2 and the solidified ferrophosphorus block 1 need to be lifted upward, the slot at the lower end of the lifting device 4 is first inserted into the column 303. During the downward movement of the lifting device 4, the telescopic rod 403 and the wedge-shaped bayonet 406 on its side slide outward under the push of the semi-dome 305 and compress the compression spring 405. When the wedge-shaped bayonet 406 moves below the semi-dome 305, the wedge-shaped bayonet 406 extends outward under the elastic force of the compression spring 405 until it is stuck to the lower end plane of the semi-dome 305. Then, the iron connecting column 3 and the graphite electrode 2 can be lifted upward.

[0028] When it is necessary to pull out the lifting device 4, the lifting device 4 can be further moved downward so that the wedge-shaped pin 406 can be clamped on the lower end of the conical ring 304, and then the lifting device 4 can be lifted upward. The wedge-shaped pin 406 drives the conical ring 304 to slide upward until it moves to the lower end surface of the semidome 305, so that the conical ring 304 and the lower end surface of the semidome 305 together form a conical surface. At this time, the wedge-shaped pin 406 continues to move upward to disengage from the semidome 305 and smoothly pull out the lifting device 4.

Claims

1. A ferrophosphorus lifting device for a yellow phosphorus electric furnace, comprising a graphite electrode (2), an iron connecting column (3) and a lifting device (4), characterized in that: During lifting, the graphite electrode (2) is placed at the center of the liquid ferrophosphorus block (1), the upper end of the graphite electrode (2) is vertically connected to the iron connecting column (3), and the iron connecting column (3) and the lifting device (4) are mutually engaged. When the liquid ferrophosphorus block (1) solidifies outside the graphite electrode (2), the lifting device (4) lifts the graphite electrode (2) and the ferrophosphorus block (1) upward and lifts them out.

2. The ferrophosphorus lifting device for yellow phosphorus electric furnace according to claim 1, characterized in that: A neck (201) is provided on the outer side surface of the graphite electrode (2).

3. The ferrophosphorus lifting device for yellow phosphorus electric furnace according to claim 1, characterized in that: The iron connecting column (3) comprises a chassis (301), a threaded column (302) is vertically provided on the lower end surface of the chassis (301), a column (303) is vertically provided on the upper end surface of the chassis (301), a semi-dome (305) is provided at the end of the column (303), and a conical ring (304) that can slide up and down is sleeved on the column (303).

4. The ferrophosphorus lifting device for yellow phosphorus electric furnace according to claim 3, characterized in that: A threaded hole (202) is provided on the upper end surface of the graphite electrode (2), and the threaded hole (202) is threadedly connected to the threaded column (302).

5. The ferrophosphorus lifting device for yellow phosphorus electric furnace according to claim 1, characterized in that: A slot (401) is provided at the axis of the lifting device (4), a mounting slot (402) is provided on the side of the lifting device (4) and is connected to the slot (401), a telescopic rod (403) is placed in the mounting slot (402), one end of the telescopic rod (403) is provided with a wedge-shaped latch (406), the other end of the telescopic rod (403) extends out of the mounting slot (402) and is connected to the baffle (404), a compression spring (405) is provided on the outer side of the telescopic rod (403), one end of the compression spring (405) is connected to the wedge-shaped latch (406), and the other end of the compression spring (405) is connected to the inner wall of the mounting slot (402).

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