Axial sealing device for yellow phosphorus electric furnace electrode

Abstract

The utility model discloses an axial sealing device for an electrode of a yellow phosphorus electric furnace, relates to the technical field of sealing, and aims to solve the technical problem of poor sealing effect between the yellow phosphorus electric furnace and the electrode in the prior art. The electrode sealing device comprises a base provided with a first through hole matched with an electrode, the first through hole is provided with a first sealing part matched with the electrode, the base is further provided with a second sealing part matched with the electrode, and the second sealing part comprises at least one connecting plate arranged on the base. The connecting plate and the base form an annular structure capable of containing the sealing filler, the annular structure formed by the connecting plate and the base is filled with the sealing filler, and the electrode penetrates through the sealing filler and the first sealing part and then is arranged in the electric furnace. The first sealing part, the second sealing part and the like are used for performing double-layer sealing on the electrode and the like, the sealing effect on the electric furnace and the electrode is improved, substances such as phosphorus steam can be effectively prevented from overflowing from gaps, normal operation of the electric furnace is ensured, the production efficiency of yellow phosphorus is improved, and the safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing, and particularly relates to an axial sealing device for the electrodes of a yellow phosphorus electric furnace. Background Art

[0002] Yellow phosphorus is an allotrope of phosphorus. It is a pale yellow crystal with a garlic smell and strong toxicity. Its ignition point is very low, it can spontaneously combust and emit light in the air. Yellow phosphorus has a wide range of uses. It can be used to make ordinary matches, produce phosphate fertilizers, and can also be used to make smoke bombs in the military. It is also a key raw material for medicine and electronic products, etc.

[0003] The production process of yellow phosphorus is mainly divided into the electric furnace method and the blast furnace method. Because the products of the electric furnace method have good quality and low cost, most enterprises currently use the electric furnace method to produce yellow phosphorus. The electric furnace forms a directional high-temperature ion flow arc by ionizing air, converts electrical energy into heat energy, and provides a high enough temperature for the reduction reaction of producing yellow phosphorus. In the reduction reaction, harmful gases such as phosphorus vapor and carbon monoxide are generated. These harmful gases are likely to overflow from the insertion part of the electrode and the electric furnace, which may affect the surrounding environment and personnel, etc. In order to reduce the impact of these harmful gases on the surrounding environment and personnel, the electrode and the electric furnace can be sealed by means such as sand sealing. The production of yellow phosphorus requires temperature control according to actual conditions. The temperature control is mainly achieved by changing the length of the electrode extending into the electric furnace. During the process of the electrode extending in and out, the electrode will rub against the part in contact with the sand seal, which may expand the contact part between the electrode and the sand seal, making the gap between the two larger and the sealing effect worse. Summary of the Utility Model

[0004] The utility model discloses an axial sealing device for the electrodes of a yellow phosphorus electric furnace, aiming to solve the technical problem of poor sealing effect between the yellow phosphorus electric furnace and the electrode in the above-mentioned existing technology.

[0005] To solve the above existing technical problems, the technical solution adopted by the utility model is as follows:

[0006] An axial sealing device for the electrodes of a yellow phosphorus electric furnace includes a base. A first through hole for cooperating with the electrode is provided on the base. A first sealing part for cooperating with the electrode is provided on the first through hole. A second sealing part for cooperating with the electrode is further provided on the base. The second sealing part includes at least one connecting plate provided on the base. The connecting plate and the base form an annular structure capable of accommodating a sealing filler. The sealing filler fills the annular structure formed by the connecting plate and the base. The electrode passes through the sealing filler and the first sealing part and is placed in the electric furnace.

[0007] After adopting this technical solution, the electrode contacts the first sealing part after passing through the first through hole of the base. The first sealing part seals the outer side wall of the electrode to prevent the sealing filler from falling into the electric furnace through the gap between the first through hole and the electrode. A connecting plate capable of forming an annular structure with the base is arranged on the base. When the electrode has extended out of the first through hole, the sealing filler is filled in this annular structure, so that the sealing filler further seals the side wall of the electrode. In this way, double-layer sealing is carried out, improving the sealing effect of the gap between the electrode and the electric furnace, effectively preventing substances such as phosphorus vapor and carbon monoxide from overflowing through the gap, ensuring the normal operation of the electric furnace, improving the production efficiency of yellow phosphorus, and ensuring the safety of operators.

[0008] Wherein, the first sealing part includes a lining strip arranged in the first through hole and capable of cooperating with the electrode.

[0009] After adopting this technical solution, the arrangement of the lining strip can adaptively fill the gap between the first through hole and the outer side wall of the electrode according to the size of the electrode. Therefore, it can better protect the gap between the electrode, the electric furnace and the first through hole, preventing the sealing filler from entering the electric furnace through the gap between the outer side wall of the electrode and the electric furnace and affecting the production of yellow phosphorus. Therefore, the arrangement of the lining strip improves the practicability of the device, and at the same time has the effects of ensuring the production efficiency of yellow phosphorus and improving the economic benefits of the enterprise.

[0010] Wherein, a fixing groove is arranged in the first through hole, and the lining strip is composed of several connecting parts capable of forming an annular structure, and the size of the connecting parts matches the size of the fixing groove.

[0011] After adopting this technical solution, the lining strip is composed of several connecting parts connected together, which can reduce the difficulty of installing the lining strip into the fixing groove. After the connecting parts are placed into the fixing groove, adjacent two connecting parts are connected, so that the connecting parts form a lining strip matching the shape and size of the fixing groove and the electrode to seal the electrode. This operation method is convenient for installing the lining strip and is relatively simple and convenient.

[0012] Wherein, the cross section of the lining strip is circular.

[0013] After adopting this technical solution, the cross section of the lining strip is circular. The circular structure makes the whole lining strip relatively smooth. Therefore, when the lining strip contacts the electrode to seal the gap between the electrode and the electric furnace, it can reduce the damage to the electrode, thus achieving the effect of extending the service life of the electrode.

[0014] Wherein, the connecting plate includes at least two sub-boards, the base is provided with a plurality of sub-bases, the sub-bases correspond to the sub-boards one by one, both the sub-boards and the sub-bases are annular structures, and each sub-board is connected to the corresponding sub-base. Adjacent two sub-boards are detachably connected, and the sub-boards and the sub-bases form an integral ring structure capable of accommodating the sealing filler.

[0015] After adopting this technical solution, the sub-board and the sub-base are both set as annular structures. The sub-base is connected to the sub-board in one-to-one correspondence, and two adjacent sub-boards are detachably connected, enabling all the sub-boards and sub-bases to be connected to form an integral ring structure, making the device easy to disassemble. The electric furnace and the electrode can be inspected by disassembling the device. Compared with the non-detachable encapsulation device, this device has the reusability, reduces the production cost of yellow phosphorus. At the same time, because the device is detachable, the practicability of the device during use is also increased.

[0016] Wherein, a side plate matching the shape and structure of the connecting plate is arranged on the outer side wall of the connecting plate, and two adjacent side plates are threadedly connected.

[0017] After adopting this technical solution, the setting of the side plate can further limit and connect the connecting plate, ensuring the stability of the connecting plate during use. At the same time, the side plates are threadedly connected to each other, increasing the connection stability and fixing effect.

[0018] Wherein, an opening is arranged on the side wall of the connecting plate, and a sealing cover is hinged to the opening.

[0019] After adopting this technical solution, by opening the sealing cover, the user can directly press or supplement the sealing filler from the sealing cover, improving the sealing effect of the device on the electrode.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0021] (1) Double-layer sealing of the electrode and the like is adopted by using the first sealing part and the second sealing part, etc., improving the sealing effect on the electric furnace and the electrode, effectively preventing substances such as phosphorus vapor and carbon monoxide from overflowing from the gap, ensuring the normal operation of the electric furnace, improving the production efficiency of yellow phosphorus, and ensuring the safety of operators.

[0022] (2) By using the lining strip and the fixing groove, etc., while facilitating the installation of the lining strip, it can also adaptively fill the gap between the first through hole and the outer side wall of the electrode according to the size of the electrode. Therefore, it can better protect the gap between the electrode, the electric furnace and the first through hole, ensuring the sealing effect.

[0023] (3) By using the lining strip with a circular cross-section, the outer wall of the lining strip is smooth, which can reduce the damage to the electrode, thus achieving the effect of extending the service life of the electrode.

[0024] (4) By using detachable connecting plates, bases, etc., the device is detachable, facilitating the inspection of the electric furnace, the electrode, etc., increasing the repeatable practicability of the device, reducing costs, and at the same time increasing the practicability of the device.

[0025] (5) Adopt a sealing cover, and the user can directly press or supplement the sealing filler from the sealing cover, improving the sealing effect of the device on the electrode. Brief Description of the Drawings

[0026] The present utility model will be described by way of examples and with reference to the accompanying drawings, where:

[0027] Figure 1 is a front elevation cross-sectional view of an axial sealing device for a yellow phosphorus electric furnace electrode of the present utility model;

[0028] Figure 2 is a top view of an axial sealing device for a yellow phosphorus electric furnace electrode of the present utility model;

[0029] Figure 3 is a schematic diagram of the positions of the inner lining strip and the fixing groove.

[0030] Reference Signs in the Drawings

[0031] 1 - Base, 101 - First base, 102 - Second base, 103 - First through hole, 104 - Fixing groove, 2 - Inner lining strip, 3 - Connecting plate, 4 - Sealing cover, 5 - Side plate, 501 - Threaded hole, 502 - Bolt. Detailed Embodiment

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Usually, the components of the embodiments of the present application described and marked in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0033] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0034] The following is a detailed description of the present utility model in conjunction with Figures 1-3 the following.

[0035] Embodiment 1

[0036] A yellow phosphorus electric furnace electrode axial sealing device, as Figures 1 to 2 shown, includes a base 1. A first through hole 103 for cooperating with the electrode is provided on the base 1. A first sealing portion for cooperating with the electrode is provided on the first through hole 103. A second sealing portion for cooperating with the electrode is further provided on the base 1. The second sealing portion includes at least one connecting plate 3 provided on the base 1. The connecting plate 3 and the base 1 form an annular structure capable of accommodating sealing filler. The sealing filler fills the annular structure formed by the connecting plate 3 and the base 1. The electrode passes through the sealing filler and the first sealing portion and is placed in the electric furnace.

[0037] In this embodiment, the base 1 is made of stainless steel material, which is corrosion-resistant, high-temperature resistant, and also has the characteristic of anti-corrosion.

[0038] In this embodiment, the first through hole 103 and the base 1 are integrally formed.

[0039] In this embodiment, the connecting plate 3 is made of stainless steel material, which is corrosion-resistant, high-temperature resistant, and also has the characteristic of anti-corrosion.

[0040] In this embodiment, the connecting plate 3 and the base 1 are welded. The welding connection method is stable, has good connection performance, and at the same time makes the connecting plate 3 and the base 1 have high rigidity and sealing performance, which can ensure airtightness and watertightness.

[0041] In this embodiment, the sealing filler is a sealing and fireproof material such as quartz sand.

[0042] After the electrode passes through the first through hole 103 of the base 1, it contacts the first sealing portion. The first sealing portion seals the outer sidewall of the electrode to prevent the sealing filler from falling into the electric furnace through the gap between the first through hole 103 and the electrode. The base 1 is provided with a connecting plate 3 that can form an annular structure with the base 1. When the electrode has extended from the first through hole 103, the sealing filler is filled in this annular structure, so that the sealing filler further seals the sidewall of the electrode. In this way, double-layer sealing is carried out, improving the sealing effect on the gap between the electrode and the electric furnace, effectively preventing substances such as phosphorus vapor and carbon monoxide from overflowing from the gap, ensuring the normal operation of the electric furnace, improving the production efficiency of yellow phosphorus, and ensuring the safety of operators.

[0043] In this embodiment, the first sealing portion includes a lining strip 2 provided in the first through hole 103 and capable of cooperating with the electrode.

[0044] In this embodiment, the lining strip 2 is made of stainless steel material.

[0045] In this embodiment, the inner lining strip 2 is an annular structure that matches the shape and size of the first through hole 103.

[0046] In this embodiment, the inner lining strip 2 can be fixed in the first through hole 103 by welding, and the outer side wall of the inner lining strip 2 is welded to the side wall of the first through hole 103 by welding.

[0047] The setting of the inner lining strip 2 can adaptively fill the gap between the first through hole 103 and the outer side wall of the electrode according to the size of the electrode. Therefore, it can better protect the gap between the electrode, the electric furnace, and the first through hole 103, preventing the sealing filler from entering the electric furnace through the gap between the outer side wall of the electrode and the electric furnace and affecting the production of yellow phosphorus. Therefore, the setting of the inner lining strip 2 not only improves the practicability of the device but also has the effect of ensuring the production efficiency of yellow phosphorus and improving the economic benefits of the enterprise.

[0048] In this embodiment, the cross-section of the inner lining strip 2 is circular.

[0049] After adopting this technical solution, the cross-section of the inner lining strip 2 is circular. The circular structure makes the whole inner lining strip 2 relatively smooth. Therefore, when the inner lining strip 2 contacts the electrode to seal the gap between the electrode and the electric furnace, it can reduce the damage to the electrode, thereby achieving the effect of extending the service life of the electrode.

[0050] In this embodiment, the connecting plate 3 includes at least two sub-plates. The base 1 is provided with a plurality of sub-bases 1. The sub-bases 1 correspond to the sub-plates one by one. Both the sub-plates and the sub-bases 1 are annular structures, and each sub-plate is connected to the corresponding sub-base 1. Adjacent two sub-plates are detachably connected. The sub-plates and the sub-bases 1 form an integral ring structure capable of accommodating the sealing filler.

[0051] Both the sub-plates and the sub-bases 1 are set as annular structures. The sub-bases 1 are connected to the sub-plates one by one, and adjacent two sub-plates are detachably connected, enabling all the sub-plates and the sub-bases 1 to be connected to form an integral ring structure, making the device easy to disassemble. The electric furnace and the electrode can be inspected by disassembling the device. Compared with the non-detachable encapsulation device, this device has the property of being reusable, reducing the production cost of yellow phosphorus. At the same time, because this device is detachable, its practicability during use is also increased.

[0052] In this embodiment, there are 2 split plates. The split base includes a first base 101 and a second base 102 with the same structure and symmetrical positions. The two split plates are respectively connected to the first base 101 and the second base 102 and are perpendicular to the first base 101 and the second base 102. The split plates are semi-circular structures, and the two split plates and the first base 101 and the second base 102 surround to form an integral ring structure capable of accommodating the sealing filler.

[0053] In this embodiment, the lining strip 2 is also a semi-circular structure that can form an integral ring.

[0054] In this embodiment, the split plates are welded to the split base.

[0055] In this embodiment, the outer sidewall of the connecting plate 3 is provided with side plates 5 that match the shape and structure of the connecting plate 3, and two adjacent side plates 5 are threadedly connected.

[0056] In this embodiment, there are 4 side plates 5, and the 4 side plates 5 are all arranged at both ends of each split plate close to the other split plate.

[0057] In this embodiment, the connecting plate 3 is welded to the side plates 5.

[0058] In this embodiment, each side plate 5 is provided with symmetrically structured threaded holes 501, and two side plates 5 in two pairs are connected by bolts 502.

[0059] In this embodiment, each side plate 4 is provided with 5 threaded holes 501.

[0060] The arrangement of the side plates 5 can further limit and connect the connecting plate 3, ensuring the stability of the connecting plate 3 during use. At the same time, the threaded connection between the side plates 5 increases the stability and effect of the connection.

[0061] In this embodiment, an opening is provided on the sidewall of the connecting plate 3, and a sealing cover 4 is hinged to the opening.

[0062] In this embodiment, the opening penetrates through the side plates 5.

[0063] By opening the sealing cover 4, the user can directly press or supplement the sealing filler from the sealing cover 4, improving the sealing effect of the device on the electrode.

[0064] The specific usage method of the present utility model is as follows:

[0065] Refer to Figures 1-2, when the device is in use, first place the first base 101 and the second base 102 on the furnace cover, align the first through hole 103 and the inner lining strip 2 with the electrode, and clamp the device on the outer side wall of the electrode. When the position is aligned, connect the threaded hole 501 on the side plate 5 through the bolt 502 to combine the device into a complete ring structure. Then, the staff adds sealing filler into the ring structure to seal the gap between the electrode and the electric furnace. At the same time, use the sealing filler to make contact seal around the electrode to thicken the thickness of the sealing layer, which can improve the sealing effect.

[0066] When the electric furnace is in use, for example, when the temperature inside the furnace needs to be controlled, the length of the motor inside the furnace can be controlled. When the motor slides up and down inside the furnace, the inner lining strip 2 always contacts the outer side wall of the electrode. The inner lining strip is the first sealing part of the electrode to seal the gap between the electrode and the electric furnace, and at the same time prevent the sealing filler from entering the furnace body and affecting the production of yellow phosphorus. The thickened sealing filler forms the second sealing part, which can further block the gap. The first sealing part and the second sealing part cooperate to seal the gap between the electrode and the electric furnace, which can better prevent the overflow of phosphorus vapor and the like, ensure the normal operation of the electric furnace, improve the production efficiency of yellow phosphorus, and ensure the safety of operators.

[0067] Due to the influence of factors such as time, the sealing filler is likely to change under continuous high temperature. The sealing filler in the ring structure may collapse, sinter and other situations. In this case, the sealing cover 4 can be opened to manually press the sealing filler or refill the filler through the sealing cover 4 to ensure the sealing effect of the electrode.

[0068] When it is necessary to inspect the electrode and the electric furnace, the staff can directly unscrew the bolt 502 to disconnect the connection of the side plate 5.

[0069] Embodiment 2

[0070] This embodiment is basically the same as Embodiment 1, the difference is that: in this embodiment, as Figure 3 shown, a fixed groove 104 is provided in the first through hole 103, and the inner lining strip 2 is composed of several connecting parts that can form a ring structure, and the size of the connecting parts matches the size of the fixed groove 104.

[0071] In this embodiment, there are 2 connecting parts.

[0072] In this embodiment, adjacent two connecting parts are connected by welding.

[0073] The inner lining strip 2 is composed of two connecting parts, which can reduce the difficulty of installing the inner lining strip 2 into the fixing groove 104. After the connecting parts are placed into the fixing groove 104, the adjacent two connecting parts are connected to form the inner lining strip 2 that matches the shape and size of the fixing groove 104 and the electrode, so as to seal the electrode. This operation method is convenient for installing the inner lining strip 2 and is relatively simple and convenient.

[0074] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A yellow phosphorus electric furnace electrode axial sealing device, characterized in that: It includes a base (1), a first through hole (103) for cooperating with an electrode is provided on the base (1), a first sealing portion for cooperating with the electrode is provided on the first through hole (103), a second sealing portion for cooperating with the electrode is further provided on the base (1), the second sealing portion includes at least one connecting plate (3) provided on the base (1), the connecting plate (3) and the base (1) form an annular structure capable of accommodating a sealing filler, the sealing filler fills the annular structure formed by the connecting plate (3) and the base (1), and the electrode is placed in the electric furnace after passing through the sealing filler and the first sealing portion.

2. The axial sealing device for the yellow phosphorus electric furnace electrode according to claim 1, characterized in that: The first sealing portion includes a lining strip (2) disposed in the first through hole (103) and capable of cooperating with the electrode.

3. The axial sealing device for the yellow phosphorus electric furnace electrode according to claim 2, characterized in that: A fixing groove (104) is provided in the first through hole (103), the lining strip (2) is composed of several connecting portions capable of forming an annular structure, and the size of the connecting portion is matched with the size of the fixing groove (104).

4. A yellow phosphorus electric furnace electrode axial sealing device according to claim 2 or 3, characterized in that: The cross section of the lining strip (2) is circular.

5. A yellow phosphorus electric furnace electrode axial sealing device according to any one of claims 1-3, characterized in that: The connecting plate (3) includes at least two sub-plates, the base (1) is provided with a plurality of sub-bases, the sub-bases correspond to the sub-plates one by one, both the sub-plates and the sub-bases are annular structures, and each sub-plate is connected to the corresponding sub-base, adjacent two sub-plates are detachably connected, and the sub-plates and the sub-bases form an integral annular structure capable of accommodating a sealing filler.

6. The axial sealing device for the yellow phosphorus electric furnace electrode according to claim 5, characterized in that: A side plate (5) matching the shape and structure of the connecting plate (3) is provided on the outer side wall of the connecting plate (3), and adjacent two side plates (5) are detachably connected by bolts.

7. The axial sealing device for the electrode of a yellow phosphorus electric furnace according to claim 5, characterized in that: An opening is provided on the side wall of the connecting plate (3), and a sealing cover (4) is hinged to the opening.

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