Electrolytic furnace with electrode distance adjusting device

Abstract

The utility model discloses an electrolytic furnace with an electrode distance adjustable device. The cover plate is provided with a first through hole and a second through hole at an interval; the rotatable rod is rotatably arranged in the second through hole through a bearing, and the lower part of the rotatable rod extends outwards to form a lateral extension part; and when a first electrode is vertically arranged in the first through hole and a second electrode is vertically arranged at the end part of the lateral extension part, the rotatable rod rotates to drive the second electrode to synchronously rotate, and the position of the second electrode is changed, so that the distance between the first electrode and the second electrode is adjusted. According to the electrolytic furnace with the electrode distance adjusting device disclosed by the embodiment of the utility model, the electrode distance can be adjusted only by adjusting the rotating angle of the rotatable rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic devices, and in particular relates to an electrolytic furnace with an adjustable electrode distance device. Background Art

[0002] During the electrolysis process, the distance between the cathode and the anode affects the mass transfer process between the electrodes, and thus affects the current efficiency and energy consumption of the electrolysis process. However, in traditional electrolytic furnaces, the electrode rods can only be inserted from fixed holes, and the electrode distance cannot be adjusted. It is impossible to explore the effect of the electrode distance on the electrolysis process, which limits the electrolysis process. Utility Model Content

[0003] In view of this, some embodiments disclose an electrolytic furnace having an adjustable electrode distance device, comprising:

[0004] A cover plate, wherein a first through hole and a second through hole are spaced apart from each other on the cover plate;

[0005] A rotatable rod, the rotatable rod is rotatably disposed in the second through hole through a bearing, and a lower portion of the rotatable rod extends outward to form a lateral extension portion;

[0006] Among them, when a first electrode is vertically arranged in the first through hole and a second electrode is vertically arranged at the end of the lateral extension portion, the rotatable rod is rotated to drive the second electrode to rotate synchronously, and the position of the second electrode changes, thereby adjusting the distance between the first electrode and the second electrode.

[0007] In the electrolytic furnace with an adjustable electrode pitch device disclosed in some embodiments, the rotatable rod is a hollow structure, and two opposite openings are provided on the side wall of the rotatable rod located in the second through hole;

[0008] Wherein, two locking components are arranged in the rotatable rod, and the ends of the two locking components are movably connected to the two openings respectively, and the gap between the two locking components forms a slot;

[0009] A position adjustment component adapted to the slot is arranged above the slot, and the position adjustment component is arranged to cooperate with the locking component to limit the rotation of the rotatable rod;

[0010] The position adjustment component is inserted into the slot, and the end of the locking component moves outward from the opening and abuts against the inner wall of the second through hole to limit the rotation of the rotatable rod.

[0011] Some embodiments disclose an electrolytic furnace with an adjustable electrode pitch device, in which an annular groove is opened from the inner wall of the second through hole to the inside of the cover plate, and the opening position of the annular groove is at the same height as the setting position of the locking assembly, and the shape of the annular groove is adapted to the end shape of the locking assembly.

[0012] In some embodiments, the electrolytic furnace with an adjustable electrode distance device disclosed herein includes a locking assembly comprising:

[0013] A card plate, wherein a first end of the card plate is arranged to pass through the opening and into the second through hole, and a second end of the card plate is located inside the rotatable rod;

[0014] A first spring, sleeved on the second end of the clamping plate;

[0015] The limiting plate is connected and fixed on the second end surface of the clamping plate.

[0016] In some embodiments, the electrolytic furnace with an adjustable electrode distance device disclosed herein comprises a position adjustment component comprising:

[0017] A push rod, the head of which extends outward from the top of the rotatable rod, a plurality of convex teeth are arranged on the bottom edge of the push rod, and a guide block is respectively arranged on the outer surface of the push rod corresponding to the plurality of convex teeth;

[0018] A sleeve is sleeved on the bottom of the push rod, a plurality of guide posts are arranged on the inner wall of the sleeve, guide grooves are formed between adjacent guide posts, and a guide block is located in the guide groove;

[0019] The sliding claw sleeve has a plurality of sliders adapted to the guide grooves on its outer surface, and the top end surfaces of the sliders are adapted to the bottom end surfaces of the guide pillars; the sliding claw sleeve passes through the sleeve and abuts against the bottom of the push rod, and the top end surfaces of the sliders are incompletely meshed with the convex teeth;

[0020] A latch pin is arranged and connected to the bottom of the sliding claw sleeve and is located above the slot;

[0021] The second spring is sleeved on the latch.

[0022] In the electrolytic furnace with an adjustable electrode pitch disclosed in some embodiments, the end of the lateral extension portion is provided with a mounting seat connected to it for mounting the second electrode.

[0023] In the electrolytic furnace with an adjustable electrode pitch device disclosed in some embodiments, a dial is provided on the cover plate at the position of the second through hole; and a pointer matched with the dial is provided on the rotatable rod.

[0024] In the electrolytic furnace with an adjustable electrode pitch disclosed in some embodiments, a fixing sleeve is arranged in the first through hole.

[0025] In the electrolytic furnace with an adjustable electrode distance device disclosed in some embodiments, a handle cover is provided on the top end of the rotatable rod.

[0026] The electrolytic furnace with an adjustable electrode pitch disclosed in some embodiments also includes a furnace body having an internal cavity, and a mounting opening communicating with the internal cavity is provided on the top of the furnace body, and the size of the mounting opening is adapted to the size of the cover plate.

[0027] The electrolytic furnace with an adjustable electrode pitch device disclosed in the embodiment of the utility model sets the first electrode in the first through hole, sets the second electrode on the end of the lateral extension of the rotatable rod, rotates the rotatable rod, drives the second electrode to rotate synchronously, changes the relative position between the first electrode and the second electrode, and changes the distance between the first electrode and the second electrode. The electrolytic furnace with an adjustable electrode pitch device disclosed in the embodiment of the utility model can adjust the electrode pitch by only adjusting the rotation angle of the rotatable rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Example 1 is a schematic diagram of the structure of an electrolytic furnace with an adjustable electrode distance device;

[0029] Figure 2 Example 2: Schematic diagram of the structure of an electrolytic furnace with an adjustable electrode distance device;

[0030] Figure 3 A schematic structural diagram of a stop assembly of Example 2;

[0031] Figure 4 Schematic diagram of the structure of the annular slot in Example 2;

[0032] Figure 5 Schematic diagram of the assembly of the position adjustment component of Example 2;

[0033] Figure 6 Schematic diagram of the working principle of the braking rotatable rod in Example 2.

[0034] Reference numerals

[0035] 1 Cover 2 Rotatable lever

[0036] 3 Mounting seat 4 Fixing sleeve

[0037] 5 gloves 6 dials

[0038] 7 Pointer 8 Locking assembly

[0039] 9 Position adjustment assembly 10 Bearing

[0040] 11 horizontal plate 21 lateral extension

[0041] 81 slot 82 card board

[0042] 83 limit plate 84 first spring

[0043] 91 Push rod 92 Sleeve

[0044] 93 Sliding claw sleeve 94 Latch

[0045] 95 second spring 101 second through hole

[0046] 102 Annular groove 911 Protruding teeth

[0047] 912 guide block 931 slider

[0048] 1021 Internal gear DETAILED DESCRIPTION

[0049] The word "embodiment" used here as an "exemplary" does not necessarily mean that any embodiment described is superior to or better than other embodiments. Unless otherwise specified, the performance index tests in the embodiments of this application are performed using conventional test methods in the art. It should be understood that the terms described in this application are only used to describe specific implementation methods and are not used to limit the content disclosed in this application.

[0050] Unless otherwise specified, the technical and scientific terms used in this document have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs; other experimental methods and technical means not specifically specified in this application refer to experimental methods and technical means commonly used by ordinary technicians in this field.

[0051] The terms "substantially" and "approximately" used herein are used to describe small fluctuations. For example, they can refer to less than or equal to ±5%, such as less than or equal to ±2%, such as less than or equal to ±1%, such as less than or equal to ±0.5%, such as less than or equal to ±0.2%, such as less than or equal to ±0.1%, such as less than or equal to ±0.05%. The numerical data represented or presented in the range format herein are used only for convenience and brevity, and should therefore be flexibly interpreted as including not only the values ​​clearly listed as the limits of the range, but also all independent values ​​or sub-ranges contained in the range. For example, the numerical range of "1-5%" should be interpreted as including not only the clearly listed values ​​of 1% to 5%, but also the independent values ​​and sub-ranges within the range shown. Therefore, independent values ​​such as 2%, 3.5% and 4% and sub-ranges such as 1%-3%, 2%-4% and 3%-5% are included in this numerical range. This principle also applies to the range of only one numerical value. In addition, such an interpretation applies regardless of the width of the range or the characteristics described.

[0052] In this document, including in the claims, transitional words such as "comprises," "includes," "with," "having," "containing," "involving," "accommodating," etc. are understood to be open-ended, i.e., meaning "including but not limited to." Only the transitional words "consisting of" and "composed of" are closed transitional words.

[0053] In order to better illustrate the content of the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In the embodiments, some methods, means, instruments, equipment, etc. well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0054] Under the premise of no conflict, the technical features disclosed in the embodiments of the present application can be arbitrarily combined, and the obtained technical solutions belong to the contents disclosed in the embodiments of the present application. It should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like mentioned in the present application indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the technical features 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 invention, unless it conflicts with the context. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance, unless it conflicts with the context.

[0055] In some embodiments, the electrolytic furnace having an adjustable electrode pitch device comprises:

[0056] A cover plate, wherein a first through hole and a second through hole are spaced apart from each other on the cover plate;

[0057] A rotatable rod, the rotatable rod is rotatably arranged in the second through hole through a bearing, and the lower part of the rotatable rod extends outward to form a lateral extension part; the lateral extension part extends outward from the axis center of the upper part of the rotatable rod by a certain distance, and the distance between the end of the lateral extension part and the upper axis center is smaller than the distance between the first through hole and the second through hole; the rotatable rod can be arbitrarily rotated in the second through hole, and when the rotatable rod rotates, the lateral extension part performs a circular motion in a plane with the axis center of the upper part of the rotatable rod as the rotation center, and the second electrode arranged on the lateral extension part moves in the plane along the trajectory of the circular motion of the lateral extension part, thereby realizing arbitrary adjustment of the distance between the second electrode and the first electrode;

[0058] Among them, when a first electrode is vertically arranged in the first through hole and a second electrode is vertically arranged at the end of the lateral extension portion, the rotatable rod is rotated to drive the second electrode to rotate synchronously, and the position of the second electrode changes, thereby adjusting the distance between the first electrode and the second electrode.

[0059] In some embodiments, the rotatable rod is a hollow structure, and two opposite openings are provided on a side wall of the rotatable rod located in the second through hole;

[0060] Wherein, two locking components are arranged in the rotatable rod, and the ends of the two locking components are movably connected to the two openings respectively, and the gap between the two locking components forms a slot;

[0061] A position adjustment component adapted to the slot is arranged above the slot, and the position adjustment component is arranged to cooperate with the locking component to limit the rotation of the rotatable rod;

[0062] Generally, when the rotatable rod drives the second electrode to rotate to the set position, the position adjustment component is inserted into the slot, and the end of the locking component moves outward from the opening and abuts against the inner wall of the second through hole. The locking component and the inner wall of the second through hole generate a pushing effect of action and reaction force to fix the rotatable rod and prevent the rotatable rod from continuing to rotate and causing the second electrode to shift in position.

[0063] In some embodiments, an annular groove is opened from the inner wall of the second through hole to the inside of the cover plate, the opening position of the annular groove is at the same height as the setting position of the locking component, and the shape of the annular groove is adapted to the end shape of the locking component. When the rotatable rod drives the second electrode to rotate to the set position, the position adjustment component is pressed, and the position adjustment component applies pressure to the locking component. Under the action of pressure, the part of the locking component located inside the rotatable rod also extends outward, and then is locked in the annular groove, limiting the rotation of the rotatable rod, which can prevent the rotatable rod from continuing to rotate under the action of external force, thereby changing the distance between the second electrode and the first electrode.

[0064] In some embodiments, the locking assembly includes:

[0065] A card plate, wherein a first end of the card plate is arranged to pass through the opening and into the second through hole, and a second end of the card plate is located inside the rotatable rod;

[0066] A first spring, sleeved on the second end of the clamping plate;

[0067] The limiting plate is connected and fixed on the second end surface of the clamping plate.

[0068] Generally, the length of the limit plate is greater than the diameter of the first spring to prevent the first spring from falling off from the second end of the clamping plate; generally, in an unstressed state, the sum of the extended length of the two clamping plates and the diameter of the rotatable rod is less than the diameter of the second through hole, so that the rotatable rod can rotate arbitrarily; in a stressed state, the sum of the extended length of the two clamping plates and the diameter of the rotatable rod is equal to the diameter of the annular clamping groove, so that the clamping plate can be clamped in the annular clamping groove, thereby limiting the rotation of the rotatable rod.

[0069] In some embodiments, the position adjustment assembly includes:

[0070] A push rod, the head of which extends outward from the top of the rotatable rod, a plurality of convex teeth are arranged on the bottom edge of the push rod, and a guide block is respectively arranged on the outer surface of the push rod corresponding to the plurality of convex teeth;

[0071] A sleeve is sleeved on the bottom of the push rod, a plurality of guide posts are arranged on the inner wall of the sleeve, guide grooves are formed between adjacent guide posts, and a guide block is located in the guide groove;

[0072] The sliding claw sleeve has a plurality of sliders adapted to the guide grooves on its outer surface, and the top end surfaces of the sliders are adapted to the bottom end surfaces of the guide pillars; the sliding claw sleeve passes through the sleeve and abuts against the bottom of the push rod, and the top end surfaces of the sliders are incompletely meshed with the convex teeth;

[0073] A latch pin is arranged and connected to the bottom of the sliding claw sleeve and is located above the slot;

[0074] The second spring is sleeved on the latch.

[0075] In some embodiments, two transverse plates are disposed on the inner side wall of the rotatable rod, and are located between the bottom of the latch and the stop assembly. The distance between the two transverse plates is greater than the diameter of the latch and smaller than the diameter of the second spring.

[0076] The working principle of the position adjustment assembly and the stop assembly cooperating to control the rotatable rod disclosed in the embodiment of the utility model includes:

[0077] The head of the push rod is pressed to apply downward pressure to the push rod, and the push rod moves along the guide groove and presses the sliding claw sleeve to move downward. When the sliding claw sleeve slides out of the guide groove, the convex teeth on the push rod contact the top surface of the slider to generate radial force to force the sliding claw sleeve to rotate. The latch pin under the sliding claw sleeve is inserted into the slot formed by the two limit plates. The second spring on the latch pin is compressed above the two cross plates. The two clamping plates are subjected to the downward pressure and extend outward from the inside of the rotatable rod to be clamped in the annular clamping groove. The two first springs on the two clamping plates are compressed between the inner side wall of the rotatable rod and the limit plate. The position of the rotatable rod is fixed and the rotatable rod cannot rotate.

[0078] The head of the push rod is pressed again, and the convex teeth on the push rod are separated from the top surface of the slider. The sliding claw sleeve rotates and slides into the guide groove under the radial force. The latch pin is pulled out of the slot and moves upward to the slot under the rebound force of the second spring. The two clamping plates are pulled out of the annular clamping grooves and move toward the inside of the rotatable rod under the rebound force of the two first springs, and the rotatable rod resumes the rotatable state.

[0079] In some embodiments, the end of the plug is conical in shape, which can reduce damage to the end of the plug during the plugging and unplugging process.

[0080] In some embodiments, the plate surfaces of the two limit plates are smooth surfaces with a certain inclination, and the slots formed between the two limit plates are V-shaped, which can increase the effective area of ​​the limit plates and the latches, ensure the normal operation of the device, and also ensure the smoothness of the operation.

[0081] In some embodiments, the end of the lateral extension portion is provided with a mounting seat for mounting the second electrode. As an optional embodiment, the mounting seat includes a caliper and a fastening bolt disposed on the caliper, and the tightness of the caliper is controlled by the fastening bolt.

[0082] In some embodiments, a scale is provided on the cover plate at the position of the second through hole; and a pointer matching the scale is provided on the rotatable rod. Generally, according to the electrode pitch required for electrolysis, the rotation angle of the rotatable rod can be calculated by means of a trigonometric formula, and then the rotatable rod can be rotated according to the degree on the scale.

[0083] In some embodiments, a fixing sleeve is disposed in the first through hole for stably disposing the first electrode.

[0084] In some embodiments, a handle cover is provided on the top end of the rotatable rod to facilitate manual operation to rotate the rotatable rod.

[0085] In some embodiments, the electrolytic furnace with an adjustable electrode pitch device also includes a furnace body, the furnace body having an internal cavity, and a mounting port connected to the internal cavity is provided on the top of the furnace body, the size of the mounting port is adapted to the size of the cover plate, and the cover plate is detachably arranged on the furnace body.

[0086] In some embodiments, two bearings are provided to ensure that the rotatable rod can rotate stably.

[0087] The technical details are further illustrated below in conjunction with embodiments.

[0088] Example 1

[0089] Figure 1 This is a schematic diagram of the structure of the electrolytic furnace with an adjustable electrode spacing device disclosed in Example 1.

[0090] like Figure 1As shown, the electrolytic furnace with an adjustable electrode pitch device includes a cover plate 1, a first through hole and a second through hole are spaced apart on the cover plate 1, a fixing sleeve 4 is arranged in the first through hole for fixing the first electrode, a rotatable rod 2 is connected to the second through hole through a bearing, the rotatable rod 2 can rotate arbitrarily in the second through hole, a dial 6 is arranged on the cover plate 1 at the periphery of the rotatable rod 2, a pointer 7 matched with the dial 6 is arranged on the rotatable rod 2, when the rotatable rod 2 is rotated, the rotation angle of the rotatable rod 2 can be judged according to the dial 6 and the pointer 7, a handle sleeve 5 is sleeved on the top of the rotatable rod 2 for facilitating manual rotation of the rotatable rod 2, the lower part of the rotatable rod 2 extends outward to form a lateral extension portion 21, and a mounting seat 3 for setting the second electrode is arranged and connected on the lateral extension portion 21.

[0091] When the first electrode is vertically arranged in the fixing sleeve 4 and the second electrode is vertically arranged in the mounting seat 3, the rotatable rod 2 is rotated to drive the second electrode to rotate synchronously, the relative position of the first electrode and the second electrode is changed, and the distance between the first electrode and the second electrode is adjusted.

[0092] Example 2

[0093] Figure 2 It is a schematic structural diagram of an electrolytic furnace with an adjustable electrode distance device disclosed in Example 2; Figure 3 It is a structural schematic diagram of the stop assembly disclosed in Example 2; Figure 4 It is a schematic structural diagram of the annular slot disclosed in Example 2; Figure 5 This is a schematic diagram of the assembly of the position adjustment assembly disclosed in Example 2; Figure 6 This is a schematic diagram of the working principle of the braking rotatable rod disclosed in Example 2.

[0094] like Figures 2 to 6 As shown, an annular groove 102 is provided inside the cover plate 1, and an evenly distributed internal gear 1021 is inside the annular groove 102. The internal gear 1021 has seventy-two teeth, and the angle between adjacent teeth is 5°. The annular groove 102 is connected to the second through hole 101, and a bearing 10 is respectively provided at the upper and lower ends of the second through hole 101. The rotatable rod 2 can be rotated arbitrarily in the second through hole 101 through the bearing 10; two locking components 8 are provided in the rotatable rod 2, and the ends of the two locking components 8 are movably connected to the openings of the side wall of the rotatable rod 2. The gap between the two locking components 8 forms a slot 81, and a position adjustment component 9 is provided above the slot 81; two cross plates 11 are relatively provided on the inner side wall of the rotatable rod 2 between the locking component 8 and the position adjustment component 9;

[0095] The locking assembly 8 includes a card plate 82, one end of which is located inside the rotatable rod 2, and the other end of the card plate 82 is arranged to pass through the opening of the side wall of the rotatable rod 2 to the second through hole 101, opposite to the annular groove 102, and has a tooth shape that can mesh with the internal gear 1021 of the annular groove 102, and the end of the card plate 82 located inside the rotatable rod 2 is connected and fixed to the limit plate 83, and the card plate 82 is sleeved with a first spring 84, and the first spring 84 is located between the inner wall of the rotatable rod 2 and the limit plate 83;

[0096] The position adjustment assembly 9 includes a push rod 91 whose head extends outward from the top of the rotatable rod 2, a plurality of protruding teeth 911 are provided on the bottom edge of the push rod 91, and a guide block 912 is provided above each protruding tooth; a sleeve 92 is sleeved on the bottom of the push rod 91, a plurality of guide posts (not shown in the figure) are provided on the inner wall of the sleeve 92, a guide groove is formed between adjacent guide posts, and the guide block 912 is located in the guide groove; a sliding claw sleeve 93 that abuts against the bottom of the push rod 91 passes through the sleeve 92, and a plurality of sliders 931 that are adapted to the guide groove are provided on the outer surface of the sliding claw sleeve 93, and the top end surface of the slider 931 has the same inclination angle as the bottom end surface of the guide post; a latch 94 connected to the bottom of the sliding claw sleeve 93 and located above the slot 81 is provided, and a second spring 95 is sleeved on the latch 94;

[0097] When fixing the rotatable rod 2, the head of the push rod 91 is pressed, and the push rod 91 moves downward along the guide groove and presses the sliding claw sleeve 93 to move downward. When the sliding claw sleeve 93 slides out of the guide groove, the convex tooth 911 on the push rod 91 contacts the top surface of the slider 931 to generate a radial force that forces the sliding claw sleeve 93 to rotate, and the latch 94 under the sliding claw sleeve 93 moves downward and is inserted into the slot 81. The second spring 95 on the latch 94 is compressed by the reaction force of the two cross plates 11. Under the action of the latch 94, the two clamping plates 82 extend outward from the inside of the rotatable rod 2 to both sides and are clamped in the internal gear 1021 of the annular clamping groove 102. The ends of the two clamping plates 82 are pressed against the annular clamping groove 102 and mesh with the annular clamping groove 102 to achieve the stopping of the rotatable rod 2. After the latch pin 94 rebounds, the clamping plate 82 rebounds under the action of the first spring 84 and returns to its original position from the annular clamping groove 102, and the rotatable rod 2 returns to the rotatable state.

[0098] The electrolytic furnace with an adjustable electrode pitch device disclosed in the embodiment of the utility model sets the first electrode in the first through hole, sets the second electrode on the end of the lateral extension of the rotatable rod, rotates the rotatable rod, drives the second electrode to rotate synchronously, changes the relative position between the first electrode and the second electrode, and changes the distance between the first electrode and the second electrode. The electrolytic furnace with an adjustable electrode pitch device disclosed in the embodiment of the utility model can adjust the electrode pitch by only adjusting the rotation angle of the rotatable rod.

[0099] The technical solutions disclosed in the present utility model and the technical details disclosed in the embodiments are merely illustrative of the inventive concept of the present utility model and do not constitute a limitation on the technical solutions of the present utility model. Any conventional changes, replacements or combinations of the technical details disclosed in the embodiments of the present utility model have the same inventive concept as the present utility model and are within the protection scope of the claims of the present utility model.

Claims

1. An electrolytic furnace with an adjustable electrode distance device, characterized in that: include: A cover plate, wherein a first through hole and a second through hole are spaced apart from each other on the cover plate; a rotatable rod, the rotatable rod being rotatably disposed in the second through hole via a bearing, the lower portion of the rotatable rod extending outward to form a lateral extension portion; Among them, when a first electrode is vertically arranged in the first through hole and a second electrode is vertically arranged at the end of the lateral extension portion, the rotatable rod is rotated to drive the second electrode to rotate synchronously, and the position of the second electrode changes, thereby realizing the adjustment of the distance between the first electrode and the second electrode.

2. The electrolytic furnace with an adjustable electrode distance device according to claim 1, characterized in that: The rotatable rod is a hollow structure, and two opposite openings are provided on the side wall of the rotatable rod located in the second through hole; Wherein, two locking components are arranged in the rotatable rod, and the ends of the two locking components are movably connected to the two openings respectively, and the gap between the two locking components forms a slot; A position adjustment component adapted to the slot is disposed above the slot, and the position adjustment component is configured to cooperate with the locking component to limit the rotation of the rotatable rod; The position adjustment component is inserted into the slot, and the end of the locking component moves outward from the opening and abuts against the inner wall of the second through hole to limit the rotation of the rotatable rod.

3. The electrolytic furnace with an adjustable electrode distance device according to claim 2, characterized in that: An annular groove is opened from the inner wall of the second through hole to the inside of the cover plate, the opening position of the annular groove is at the same height as the setting position of the locking component, and the shape of the annular groove is adapted to the end shape of the locking component.

4. The electrolytic furnace with an adjustable electrode distance device according to claim 2 or 3, characterized in that: The locking assembly comprises: A card plate, wherein a first end of the card plate is arranged to pass through the opening into the second through hole, and a second end of the card plate is located inside the rotatable rod; A first spring, sleeved on the second end of the clamping plate; The limiting plate is connected and fixed on the second end surface of the clamping plate.

5. The electrolytic furnace with an adjustable electrode distance device according to claim 4, characterized in that: The position adjustment component comprises: A push rod, the head of which extends outward from the top of the rotatable rod, a plurality of protruding teeth are arranged on the bottom edge of the push rod, and a guide block is respectively arranged on the outer surface of the push rod corresponding to the plurality of protruding teeth; A sleeve, which is sleeved on the bottom of the push rod, a plurality of guide posts are arranged on the inner wall of the sleeve, a guide groove is formed between adjacent guide posts, and the guide block is located in the guide groove; A sliding claw sleeve, wherein a plurality of sliding blocks adapted to the guide grooves are arranged on the outer surface of the sliding claw sleeve, and the top end surface of the sliding block is adapted to the bottom end surface of the guide column; the sliding claw sleeve passes through the sleeve and abuts against the bottom of the push rod, and the top end surface of the sliding block is incompletely meshed with the convex teeth; A latch pin is arranged and connected to the bottom of the sliding claw sleeve and is located above the slot; The second spring is sleeved on the latch.

6. The electrolytic furnace with an adjustable electrode distance device according to claim 1, characterized in that: An end portion of the lateral extension portion is provided with a mounting seat connected thereto for mounting the second electrode.

7. The electrolytic furnace with an adjustable electrode distance device according to claim 1, characterized in that: A scale plate is arranged on the cover plate at the position of the second through hole; and a pointer matched with the scale plate is arranged on the rotatable rod.

8. The electrolytic furnace with an adjustable electrode distance device according to claim 1, characterized in that: A fixing sleeve is arranged in the first through hole.

9. The electrolytic furnace with an adjustable electrode distance device according to claim 1, characterized in that: The top end of the rotatable rod is sleeved with a handle cover.

10. The electrolytic furnace with an adjustable electrode distance device according to claim 1, characterized in that: It also includes a furnace body, which has an internal cavity. The top of the furnace body is provided with a mounting opening connected to the internal cavity, and the size of the mounting opening is adapted to the size of the cover plate.

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