Sealing and insulating device for yellow phosphorus electric furnace electrode

Abstract

The invention relates to the technical field of electrode sealing, and discloses a yellow phosphorus electric furnace electrode sealing and insulating device which comprises a sealing seat and a cover plate covering the sealing seat. Through clamping positioning and flexible water level compensation design, the stability and durability of yellow phosphorus electric furnace electrode sealing are greatly improved, a clamping assembly is automatically triggered by means of buoyancy of a hollow floating plate after the water level in a water cavity reaches the standard, a clamping rod is driven by a rocker arm to be accurately inserted into an insertion hole of an insertion plate, and stable positioning of a sealing base and a cover plate is achieved; relative displacement caused by vibration in the operation process of the device is effectively avoided, and a foundation is built for a double-sealing structure. According to the compensation assembly, through the communication design of a temporary storage cavity and a water cavity, a threaded rod is controlled through a quincunx knob to drive a piston to actively replenish water, evaporation and leakage loss of sealing water are compensated in time, and the water level needed by water sealing is maintained all the time; and finally, the effects of reliable sealing, accurate positioning and timely water replenishing are achieved.

Description

A sealing and insulating device for electrodes of a yellow phosphorus electric furnace Technical Field

[0001] This invention belongs to the field of electrode sealing technology, and more specifically, relates to a sealing and insulating device for a yellow phosphorus electric furnace electrode. Background Technology

[0002] In the production of yellow phosphorus electric furnaces, electrode sealing is a major auxiliary device of the furnace. The electrode is covered by a sealing device, and the sealing method using quartz sand or asbestos rope isolates the flames and toxic gases from the furnace. Without electrode sealing, large amounts of gaseous substances such as carbon monoxide, phosphorus vapor, and sulfur dioxide generated in the furnace reaction would be emitted, affecting the environment.

[0003] Existing electrode seals mostly use a combination of water seals and sand seals. However, in actual operation, it has been found that the relative displacement between the sealing seat and the cover plate is easily caused by the vibration of the electric furnace during the operation of the device. This leads to an increase in the sealing gap, which destroys the double sealing effect and exacerbates the risk of gas leakage.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a sealing and insulating device for yellow phosphorus electric furnace electrodes, including a sealing seat and a cover plate covering the sealing seat.

[0006] An electrode body is installed between the sealing seat and the cover plate. The sealing seat has a water cavity and a sand cavity inside, which are used for water sealing and sand sealing of the gas. A locking assembly is installed between the sealing seat and the cover plate. The locking assembly includes an insert plate on the sealing seat and a retainer on the cover plate, and is located in the water cavity. A hollow float plate is slidably installed inside the retainer. A rocker arm is rotatably installed on the hollow float plate, and a retaining rod is rotatably installed on the rocker arm, with the retaining rod passing laterally through the retainer. When the water cavity is filled, the hollow float plate moves upwards due to buoyancy, and the rocker arm drives the retaining rod to insert into the insert plate, completing the positioning operation. A compensation assembly is installed on the sealing seat. The compensation assembly includes a temporary storage cavity on the side wall of the sealing seat, with the bottom of the temporary storage cavity communicating with the water cavity. A piston is slidably installed inside the temporary storage cavity. When the piston moves downwards, it drives the water in the temporary storage cavity to flow into the water cavity, compensating for the water in the water cavity.

[0007] In a preferred embodiment of the present invention, a mounting plate is installed at the bottom of the sealing seat, and a mounting hole is provided on the mounting plate. The mounting hole facilitates the connection between the sealing seat and an external structure. A baffle is installed inside the sealing seat, and the baffle is used to separate the water cavity and the sand cavity.

[0008] In a preferred embodiment of the present invention, a threaded sleeve is installed on the top of the baffle, the cover plate covers the threaded sleeve, and the cover plate and the threaded sleeve are connected by bolts.

[0009] In a preferred embodiment of the present invention, a first partition and a second partition are installed at the bottom of the cover plate. The first partition is located on the outer wall of the second partition. The first partition is inserted into the water cavity, and the second partition is inserted into the sand cavity. The gas flows in a U-shape in the water cavity and the sand cavity.

[0010] In a preferred embodiment of the present invention, a pair of pressure seats are bolted to the cover plate, an insulating pad is snapped between the pair of pressure seats, the insulating pad is installed on the side wall of the electrode body, and the pair of pressure seats are screwed together.

[0011] In a preferred embodiment of the present invention, the compensation component further includes a threaded rod, a knob mounted on the top of the threaded rod in a quincunx shape, the bottom of the threaded rod being rotatably connected to the piston, and a fixing plate mounted on the end of the temporary storage cavity, the fixing plate being screwed into the threaded rod.

[0012] In a preferred embodiment of the present invention, the insert plate is U-shaped, and the card holder is inserted into the center of the insert plate. The insert plate has an insertion hole, which corresponds to the card rod. The rocker arm is in an inclined state.

[0013] In a preferred embodiment of the present invention, a fixed seat is vertically installed inside the card holder, a guide rod is installed on the fixed seat, the guide rod is inserted into the corresponding card rod, a return spring is sleeved on the card rod, one end of the return spring is engaged with the side wall of the fixed seat, and the other end of the return spring is engaged with the end of the card rod.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention significantly improves the stability and durability of the electrode seal of the yellow phosphorus electric furnace through snap-fit ​​positioning and flexible water level compensation design. The snap-fit ​​component is automatically triggered by the buoyancy of the hollow float plate after the water level in the water chamber reaches the standard. The rocker arm drives the snap-fit ​​rod to accurately insert into the insertion hole of the insertion plate, realizing the stable positioning of the sealing seat and the cover plate. This effectively avoids relative displacement caused by vibration during device operation and lays a solid foundation for the double sealing structure. The compensation component, through the connection design of the temporary storage chamber and the water chamber, uses a plum blossom-shaped knob to control the threaded rod to drive the piston to actively replenish water, timely make up for the evaporation and leakage loss of sealing water, and always maintain the water level required for the water seal. Combined with the double sealing of the sand chamber and the water chamber through the U-shaped path and the insulation protection of the insulating gasket, the final result is a reliable seal, accurate positioning and timely water replenishment.

[0015] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0016] In the accompanying drawings: Figure 1 is a three-dimensional view of a yellow phosphorus electric furnace electrode sealing and insulation device; Figure 2 is a structural diagram of a sealing seat of a yellow phosphorus electric furnace electrode sealing and insulation device; Figure 3 is an enlarged view of section A in Figure 2 of a yellow phosphorus electric furnace electrode sealing and insulation device; Figure 4 is a structural diagram of a cover plate of a yellow phosphorus electric furnace electrode sealing and insulation device; Figure 5 is a bottom view of Figure 4 of a yellow phosphorus electric furnace electrode sealing and insulation device; Figure 6 is a cross-sectional view of a yellow phosphorus electric furnace electrode sealing and insulation device; Figure 7 is a diagram of the card holder and insert plate connection structure of a yellow phosphorus electric furnace electrode sealing and insulation device. In the diagram: 1. Sealing seat; 2. Mounting plate; 3. Mounting hole; 4. Baffle; 5. Water cavity; 6. Sand cavity; 7. Threaded sleeve; 8. Cover plate; 9. First partition plate; 10. Second partition plate; 11. Electrode body; 12. Insulating pad; 13. Pressure seat; 14. Temporary storage cavity; 15. Piston; 16. Fixing plate; 17. Threaded rod; 18. Knob; 19. Insertion plate; 20. Insertion hole; 21. Card seat; 22. Hollow float plate; 23. Rocker arm; 24. Card rod; 25. Fixing seat; 26. Guide rod; 27. Return spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0018] Example 1: As shown in Figures 1 to 7, a yellow phosphorus electric furnace electrode sealing and insulation device includes a sealing seat 1 and a cover plate 8 covering the sealing seat 1.

[0019] An electrode body 11 is installed between the sealing seat 1 and the cover plate 8. The sealing seat 1 has a water cavity 5 and a sand cavity 6 respectively, which are used to perform water sealing and sand sealing operations on the gas. A locking assembly is installed between the sealing seat 1 and the cover plate 8. The locking assembly includes an insert plate 19 on the sealing seat 1 and a retainer 21 on the cover plate 8. The locking assembly is located in the water cavity 5. A hollow float plate 22 is slidably disposed inside the retainer 21. A rocker arm 23 is rotatably mounted on the hollow float plate 22, and a retaining rod is rotatably mounted on the rocker arm 23. 24, and the locking rod 24 extends horizontally through the locking seat 21. When the water in the water cavity 5 is filled, the hollow float 22 moves upward by buoyancy and drives the locking rod 24 to be inserted into the insert plate 19 through the rocker arm 23 to complete the positioning operation. A compensation component is installed on the sealing seat 1. The compensation component includes a temporary storage cavity 14 opened on the side wall of the sealing seat 1. The bottom of the temporary storage cavity 14 is connected to the water cavity 5. A piston 15 is slidably arranged inside the temporary storage cavity 14. When the piston 15 moves downward, it drives the water in the temporary storage cavity 14 to flow to the water cavity 5 to compensate for the water in the water cavity 5.

[0020] As shown in Figures 1 to 7, in a specific embodiment, a mounting plate 2 is installed at the bottom of the sealing seat 1. The mounting plate 2 has mounting holes 3, which facilitate the connection between the sealing seat 1 and the external structure. A baffle 4 is installed inside the sealing seat 1, which separates the water chamber 5 and the sand chamber 6. By setting the mounting plate with mounting holes and the separating baffle, convenient assembly and positioning of the device with the external structure are achieved, while precise separation of the water seal and sand seal chambers is also possible, providing a structural prerequisite for the independent and efficient operation of the dual seals.

[0021] As shown in Figures 1 to 7, a threaded sleeve 7 is further installed on the top of the baffle 4, and a cover plate 8 covers the threaded sleeve 7. The cover plate 8 and the threaded sleeve 7 are connected by bolts. Through the cooperation structure of the threaded sleeve and bolts, a detachable and stable connection between the cover plate and the sealing seat is achieved, which not only ensures the airtightness of the sealing cavity, but also provides convenience for subsequent device inspection and maintenance of internal components.

[0022] As shown in Figures 1 to 7, furthermore, a first partition 9 and a second partition 10 are installed at the bottom of the cover plate 8. The first partition 9 is located on the outer wall of the second partition 10. The first partition 9 is inserted into the water cavity 5, and the second partition 10 is inserted into the sand cavity 6. The gas flows in a U-shape in the water cavity 5 and the sand cavity 6. The insertion design of the first partition 9 and the second partition 10 forces the gas to flow in a U-shape, extending the sealing path and improving the barrier effect, thereby enhancing the sealing reliability.

[0023] As shown in Figures 1 to 7, furthermore, a pair of pressure seats 13 are bolted onto the cover plate 8, and an insulating pad 12 is snapped between the pair of pressure seats 13. The insulating pad 12 is installed on the side wall of the electrode body 11, and the pair of pressure seats 13 are screwed together. By fastening the insulating pad 12 with the pressure seats 13, reliable insulation between the electrode body 11 and the metal parts is achieved.

[0024] Example 2: The difference between this example and the previous one is that, as shown in Figures 1 to 7, the compensation assembly further includes a threaded rod 17. A knob 18, shaped like a plum blossom, is mounted on the top of the threaded rod 17. The bottom of the threaded rod 17 is rotatably connected to the piston 15. A fixing plate 16 is mounted at the end of the temporary storage chamber 14, and the fixing plate 16 is screwed onto the threaded rod 17. Through the threaded rod 17, knob 18, and fixing plate 16, the compensation assembly possesses a manual, precise water replenishment function, improving the controllability of water replenishment.

[0025] As shown in Figures 1 to 7, in a specific embodiment, the insert plate 19 is U-shaped, and the card holder 21 is inserted into the center of the insert plate 19. The insert plate 19 has an insertion hole 20, which corresponds to the card rod 24. The rocker arm 23 is in an inclined state. Through the design of the U-shaped insert plate 19 and the inclined rocker arm 23, the assembly accuracy and transmission efficiency of the locking component are improved, ensuring reliable locking.

[0026] As shown in Figures 1 to 7, further, a fixed base 25 is vertically installed inside the card holder 21. A guide rod 26 is installed on the fixed base 25, and the guide rod 26 is inserted into the corresponding card lever 24. A return spring 27 is sleeved on the card lever 24. One end of the return spring 27 is engaged with the side wall of the fixed base 25, and the other end is engaged with the end of the card lever 24. Through the guidance of the guide rod 26 and the return spring 27, the sliding stability of the card lever 24 and the ease of locking and unlocking are ensured, taking into account both reliability and maintainability.

[0027] The implementation principle of the electrode sealing and insulation device for a yellow phosphorus electric furnace according to the present invention is as follows: First, the entire device is fixedly connected to the relevant external structure through the mounting hole 3 on the mounting plate 2 at the bottom of the sealing seat 1, thus completing the installation and positioning of the device. During installation, the electrode body 11 passes through the reserved channel between the sealing seat 1 and the cover plate 8. Then, the cover plate 8 is placed on the threaded sleeve 7 on the top of the baffle 4 inside the sealing seat 1, and the cover plate 8 is initially fixed to the sealing seat 1 by tightening the bolts. At this time, the first partition 9 at the bottom of the cover plate 8 is inserted into the water cavity 5 inside the sealing seat 1, and the second partition 10 is inserted into the sand cavity 6. The baffle 4 itself has completed the separation of the water cavity 5 and the sand cavity 6. With the limiting of the first partition 9 and the second partition 10, the gas generated in the furnace must flow along the U-shaped path formed by the water cavity 5 and the sand cavity 6, providing a structural basis for double sealing. Meanwhile, the insulating pad 12 is tightly clamped to the side wall of the electrode body 11 by a pair of pressure seats 13 on the cover plate 8, and the pressure seats 13 are then tightened with bolts. The insulating pad 12 is used to achieve insulation isolation between the electrode body 11 and other metal parts of the device, avoiding the risk of leakage or short circuit.

[0028] During sealing, the water chamber 5 contains an appropriate amount of sealing water, and the sand chamber 6 contains sealing sand. As the gas flows, it first undergoes initial filtration and blocking through the sealing sand in the sand chamber 6, and then enters the sealing water in the water chamber 5 to complete a secondary water seal. This double-sealing structure significantly improves the gas sealing effect, preventing the leakage of toxic gases. When the water in the water chamber 5 fills to a preset height, the hollow float 22 inside the card seat 21 in the water chamber 5 moves upward under buoyancy, causing the rocker arm 23, which is rotatably connected to it, to rotate synchronously. The locking rod 24 connected to the other end of the rocker arm 23 slides laterally along the guide rod 26 on the fixed seat 25, and finally inserts into the insertion hole 20 of the insertion plate 19 on the sealing seat 1. The locking assembly completes the precise positioning of the sealing seat 1 and the cover plate 8, preventing relative displacement due to vibration during device operation and ensuring sealing stability. The return spring 27 inside the card holder 21 is always in a pre-tight state. When the water chamber 5 drains, the hollow float 22 drops with the water level, and the return spring 27 pulls the card rod 24 to disengage from the insertion hole 20, thereby releasing the lock and facilitating subsequent maintenance or disassembly.

[0029] During long-term operation of the device, the sealing water in water chamber 5 may be lost due to high-temperature evaporation or slight leakage. By rotating the plum blossom-shaped knob 18 in the compensation component, the threaded rod 17, which is screwed onto the fixed plate 16, rotates, thereby driving the piston 15, which is rotatably connected to the bottom of the threaded rod 17, to move downwards. This forces the water stored in the temporary storage chamber 14 into the water chamber 5, which is connected to its bottom. This achieves automatic or manual compensation of the sealing water level in water chamber 5, ensuring a continuous and stable water seal effect. The entire process, through the synergistic action of the four core components of sealing, locking, insulation, and compensation, achieves reliable electrode sealing and ensures the durability of insulation performance and sealing, meeting the stringent requirements for electrode sealing in yellow phosphorus electric furnaces.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sealing and insulating device for a yellow phosphorus electric furnace electrode, comprising a sealing seat (1) and a cover plate (8) covering the sealing seat (1), characterized in that: An electrode body (11) is installed between the sealing seat (1) and the cover plate (8). A water cavity (5) and a sand cavity (6) are respectively opened inside the sealing seat (1). The gas is sealed by water and sand through the water cavity (5) and the sand cavity (6). A locking assembly is installed between the sealing seat (1) and the cover plate (8). The locking assembly includes an insert plate (19) on the sealing seat (1) and a card seat (21) on the cover plate (8). The locking assembly is located in the water cavity (5). A hollow float plate (22) is slidably arranged inside the card seat (21). A rocker arm (23) is rotatably installed on the hollow float plate (22). A rocker arm (23) is rotatably installed on the rocker arm (23). A locking rod (24) is installed, and the locking rod (24) passes through the locking seat (21) laterally. When the water in the water cavity (5) is filled, the hollow float (22) moves upward by buoyancy and drives the locking rod (24) to be inserted into the insert plate (19) through the rocker arm (23) to complete the positioning operation. A compensation component is installed on the sealing seat (1). The compensation component includes a temporary storage cavity (14) opened on the side wall of the sealing seat (1). The bottom of the temporary storage cavity (14) is connected to the water cavity (5). A piston (15) is slidably arranged inside the temporary storage cavity (14). When the piston (15) moves downward, it drives the water in the temporary storage cavity (14) to flow to the water cavity (5) to compensate for the water in the water cavity (5).

2. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 1, characterized in that, The sealing seat (1) is equipped with an installation plate (2) at the bottom. The installation plate (2) has an installation hole (3) which facilitates the connection between the sealing seat (1) and the external structure. The sealing seat (1) is equipped with a baffle (4) inside. The baffle (4) is used to separate the water cavity (5) and the sand cavity (6).

3. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 2, characterized in that, The baffle (4) is fitted with a threaded sleeve (7) on top, and the cover plate (8) covers the threaded sleeve (7), and the cover plate (8) and the threaded sleeve (7) are connected by bolts.

4. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 1, characterized in that, The bottom of the cover plate (8) is equipped with a first partition (9) and a second partition (10). The first partition (9) is located on the outer wall of the second partition (10). The first partition (9) is inserted into the water cavity (5), and the second partition (10) is inserted into the sand cavity (6). The gas flows in a U-shape in the water cavity (5) and the sand cavity (6).

5. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 1, characterized in that, A pair of pressure seats (13) are installed on the cover plate (8) by bolts. An insulating pad (12) is snapped between the pair of pressure seats (13). The insulating pad (12) is installed on the side wall of the electrode body (11). The pair of pressure seats (13) are connected by bolts.

6. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 1, characterized in that, The compensation assembly also includes a threaded rod (17), a knob (18) is mounted on the top of the threaded rod (17), the knob (18) is shaped like a plum blossom, the bottom of the threaded rod (17) is rotatably connected to the piston (15), and a fixing plate (16) is mounted at the end of the temporary storage cavity (14), the fixing plate (16) is screwed into the threaded rod (17).

7. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 1, characterized in that, The insert plate (19) is U-shaped, and the card holder (21) is inserted into the center of the insert plate (19). The insert plate (19) has a hole (20) which corresponds to the card rod (24). The rocker arm (23) is in an inclined state.

8. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 1, characterized in that, The card holder (21) has a vertically installed fixed seat (25) inside, and a guide rod (26) is installed on the fixed seat (25). The guide rod (26) is inserted into the corresponding card rod (24).

9. The electrode sealing and insulation device for a yellow phosphorus electric furnace according to claim 8, characterized in that, A reset spring (27) is sleeved on the lever (24). One end of the reset spring (27) is clamped to the side wall of the fixed seat (25), and the other end of the reset spring (27) is clamped to the end of the lever (24).

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