Reaction kettle for producing sodium pyroantimonate
Patent Information
- Application Number
- CN202521950457.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-10
AI Technical Summary
[0004]本申请实施例的目的在于提供一种焦锑酸钠生产用反应釜,其能够解决现有技术中的焦锑酸钠生产用反应釜未配备顶盖辅助拆装结构,顶盖上还设置有搅拌机构,如果依赖人工拆装顶盖,费时费力,而且搅拌机构会带出少量反应釜内的物料,人工拆装存在一定的安全隐患的技术问题
[0015]This utility model provides a reaction vessel for the production of sodium pyroantimonate. During use, the lid is first vertically lifted by a lid-moving assembly to separate it from the vessel body. Then, it is moved horizontally to completely remove the lid to an area outside the area directly above the vessel body, thus fully opening the top opening of the vessel body for easy feeding, cleaning, or maintenance. The lid-moving assembly allows for two degrees of freedom in the lid's movement—up and down, left and right—achieving the closing and opening of the lid from the vessel body. This transforms the lid opening method from traditional manual operation to mechanized control, resulting in faster opening, saving time and effort, improving production efficiency, and preventing operators from directly contacting the heavy lid, ensuring operational safety.
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Figure CN224686867U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sodium pyroantimonate production technology, and more specifically, to a reaction vessel for sodium pyroantimonate production. Background Technology
[0002] Sodium pyroantimonate, also known as sodium antimonate, is the sodium salt of antimonyic acid. It is used as an opaque filler, a whitening agent in enamel, and an acid-resistant paint for sheet metal and steel plates. It is also used as a glass clarifying agent and a flame retardant synergist. The production of sodium pyroantimonate requires a reaction vessel. For example, Chinese patent CN202420176635.6 discloses a stirring vessel for preventing wall adhesion during the preparation of sodium pyroantimonate. The disclosed technical solution includes: a vessel body supported inside a frame, and the frame is an integrated structure with liftable rollers for stable support and auxiliary movement of the vessel body. The vessel body is made of high borosilicate glass, and a stirring mechanism is installed inside the vessel body for stirring materials. A heating mechanism is used to heat the materials. The inner wall of the vessel body is covered with an anti-stick plate, and the surface of the anti-stick plate is sprayed with an anti-stick coating. This utility model has a novel structure; the vessel body is made of high borosilicate glass, and the anti-stick plate has anti-stick properties, giving it good corrosion resistance and high-temperature resistance.
[0003] However, the existing technology has certain limitations in use. The reactor is not equipped with a top cover for disassembly and assembly. The top cover is also equipped with a stirring mechanism. If the top cover is disassembled manually, it is time-consuming and laborious. Moreover, the stirring mechanism will bring out a small amount of material from the reactor. Manual disassembly and assembly poses certain safety hazards. Summary of the Invention
[0004] The purpose of this application is to provide a reaction vessel for the production of sodium pyroantimonate, which can solve the technical problems of existing sodium pyroantimonate production reaction vessels not being equipped with a top cover auxiliary disassembly and assembly structure, and the top cover also being equipped with a stirring mechanism. If the top cover is disassembled manually, it is time-consuming and laborious, and the stirring mechanism will bring out a small amount of material in the reaction vessel, and manual disassembly and assembly poses certain safety hazards.
[0005] This application provides a reaction vessel for producing sodium antimonate pyrophosphate, including a vessel body, a vessel cover, a bottom plate, a top plate, and a cover-moving assembly. The vessel body is disposed on the bottom plate, the top plate is located above the vessel body, and a plurality of columns are fixedly disposed between the bottom plate and the top plate. The vessel cover can be closed to the top opening of the vessel body, and the cover-moving assembly is disposed on the top plate, and the cover-moving assembly can drive the vessel body to move up and down and left and right.
[0006] Preferably, the lid-moving assembly includes a movable frame, a screw, a first motor, a slide bar, a winch, and a connecting rope. A groove is provided at the bottom of the top plate. The screw is rotatably mounted in the groove via a bearing. The first motor is fixedly mounted on the top plate, and its output shaft is connected to the screw. The slide bar is fixedly mounted in the groove. The top of the movable frame is slidably mounted in the groove, and the movable frame is threaded onto the screw and slidably mounted on the slide bar. The winch is fixedly mounted on the movable frame. One end of the connecting rope is connected to the winch, which can wind or release the connecting rope. The other end of the connecting rope is connected to the top of the lid.
[0007] Preferably, the movable frame is provided with a guide rope wheel, and the connecting rope slides through the guide rope wheel.
[0008] Preferably, a guide rod is fixedly installed on the movable frame, and the guide rod slides through the kettle lid.
[0009] Preferably, a stirring assembly is provided at the bottom of the vessel lid. The stirring assembly includes a rotating rod, a second motor, and multiple stirring rods. The rotating rod is rotatably mounted at the bottom of the vessel lid via a bearing. The second motor is fixedly mounted at the top of the vessel lid, and the output shaft of the second motor is connected to the rotating rod. The multiple stirring rods are evenly distributed on the rotating rod.
[0010] Preferably, a connecting rod is fixedly provided on the rotating rod, and a scraper is fixedly provided at the end of the connecting rod away from the rotating rod, the scraper being able to abut against the inner wall of the vessel.
[0011] Preferably, a limiting member is fixedly provided on the column, and the limiting member can abut against the outer wall of the vessel body.
[0012] Preferably, the lower end of the base plate is provided with six support components, wherein two of the support components are symmetrically arranged on the left side of the lower end of the base plate, two of the support components are symmetrically arranged on the middle side of the lower end of the base plate, and two of the support components are symmetrically arranged on the right side of the lower end of the base plate.
[0013] Preferably, the support assembly includes a mounting rod, a caster wheel, and a support sleeve. The lower end of the base plate has six threaded holes, and the corresponding mounting rod can be threaded into the corresponding threaded hole. The caster wheel is fixedly disposed at the lower end of the mounting rod, and the support sleeve is threaded onto the mounting rod and covers the caster wheel.
[0014] The beneficial effects of this utility model are:
[0015] This utility model provides a reaction vessel for the production of sodium pyroantimonate. During use, the lid is first vertically lifted by a lid-moving assembly to separate it from the vessel body. Then, it is moved horizontally to completely remove the lid to an area outside the area directly above the vessel body, thus fully opening the top opening of the vessel body for easy feeding, cleaning, or maintenance. The lid-moving assembly allows for two degrees of freedom in the lid's movement—up and down, left and right—achieving the closing and opening of the lid from the vessel body. This transforms the lid opening method from traditional manual operation to mechanized control, resulting in faster opening, saving time and effort, improving production efficiency, and preventing operators from directly contacting the heavy lid, ensuring operational safety. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall front view structure in some embodiments of this application;
[0018] Figure 2 This is a top view of the bottom plate structure in some embodiments of this application;
[0019] Figure 3 This is a top-view cross-sectional view of the top plate structure in some embodiments of this application;
[0020] Figure 4 This is a cross-sectional view of the main structure of the support component in some embodiments of this application.
[0021] The reference numerals in the attached figures are as follows:
[0022] 1. Kettle body;
[0023] 2. Cauldron cover;
[0024] 3. Base plate; 31. Column; 32. Limiting component;
[0025] 4. Top plate; 41. Slide groove;
[0026] 5. Cover shifting assembly; 51. Movable frame; 52. Screw; 53. First motor; 54. Slide bar; 55. Winch; 56. Connecting rope; 57. Guide rope pulley; 58. Guide rod;
[0027] 6. Stirring assembly; 61. Rotating rod; 62. Second motor; 63. Stirring rod; 64. Connecting rod; 65. Scraper rod;
[0028] 7. Support components; 71. Mounting rod; 72. Casters; 73. Support sleeve. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0035] It should be noted that all electrical components appearing in this application are connected to an external main controller and mains power. The main controller can be a conventional known device such as a computer for control. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets and welding that are mature in the prior art. Furthermore, the machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art. These are prior art known to those skilled in the art and will not be described in detail here.
[0036] like Figures 1 to 3 As shown in the embodiment of this application, a reaction vessel for the production of sodium pyroantimonate is provided, including a vessel body 1, a vessel cover 2, a bottom plate 3, a top plate 4, and a cover-moving assembly 5. The vessel body 1 is disposed on the bottom plate 3, the top plate 4 is located above the vessel body 1, and a plurality of columns 31 are fixedly disposed between the bottom plate 3 and the top plate 4. The vessel cover 2 can cover the top opening of the vessel body 1. The cover-moving assembly 5 is disposed on the top plate 4, and the cover-moving assembly 5 can drive the vessel body 1 to move up and down and left and right.
[0037] In use, the lid 2 is first lifted vertically by the lid-moving assembly 5 to separate the lid 2 from the vessel body 1, and then moved horizontally to completely move the lid 2 to an area outside the area directly above the vessel body 1, thereby fully opening the top opening of the vessel body 1 for easy feeding, cleaning or maintenance.
[0038] The reactor can control the lid 2 to move freely up and down and left and right through the lid-moving assembly 5, realizing the closing and opening action between the lid 2 and the reactor body 1. This changes the opening method of the lid 2 from traditional manual operation to mechanized operation, which is fast, saves time and effort, improves production efficiency, and avoids direct contact between operators and the heavy lid 2, thus ensuring operational safety.
[0039] like Figures 1 to 3As shown, in this embodiment, the lid-moving assembly 5 includes a movable frame 51, a screw 52, a first motor 53, a slide bar 54, a winch 55, and a connecting rope 56. A groove 41 is provided at the bottom of the top plate 4. The screw 52 is rotatably mounted in the groove 41 via a bearing. The first motor 53 is fixedly mounted on the top plate 4, and the output shaft of the first motor 53 is connected to the screw 52. The slide bar 54 is fixedly mounted in the groove 41. The top of the movable frame 51 is slidably mounted in the groove 41, and the movable frame 51 is threaded onto the screw 52 and slidably mounted onto the slide bar 54. The winch 55 is fixedly mounted on the movable frame 51. One end of the connecting rope 56 is connected to the winch 55, and the winch 55 can wind up or release the connecting rope 56. The other end of the connecting rope 56 is connected to the top of the lid 2.
[0040] In use, the first motor 53 is turned on to drive the screw 52 to rotate. Since the movable frame 51 and the screw 52 are threaded together and form a sliding pair with the fixed slide rod 54, the rotation of the screw 52 is converted into the precise linear movement of the movable frame 51 along the slide groove 41, thereby realizing the left and right movement of the lid 2. The winch 55 is turned on to wind up or release the connecting rope 56, thereby pulling the lid 2, which is connected to the other end of the connecting rope 56, to move up and down. Through the coordinated work of the first motor 53 and the winch 55, the lid 2 can be moved in the up and down and left and right directions to complete the closing and opening of the lid with the body 1. This mechanized operation method has high precision and can accurately control the position of the lid 2, further improving the automation and efficiency of the operation and reducing the error and safety risks of manual operation.
[0041] like Figure 1 As shown, in this embodiment, the movable frame 51 is provided with a guide rope wheel 57, and the connecting rope 56 slides through the guide rope wheel 57; the guide rope wheel 57 plays the role of guiding the movement direction of the connecting rope 56, so that the connecting rope 56 can move along a predetermined path, ensuring that the connecting rope 56 moves more smoothly when driving the lid 2 up and down, avoiding problems such as tangling and jamming of the connecting rope 56, and reducing friction and wear of the connecting rope 56 during the movement process, thus extending the service life of the connecting rope 56.
[0042] like Figure 1 As shown, in this embodiment, a guide rod 58 is fixedly installed on the movable frame 51, and the guide rod 58 slides through the lid 2. The cooperation between the guide rod 58 and the lid 2 provides additional vertical guidance and limit for the lifting and lowering movement of the lid 2, effectively suppressing the rotation and lateral swaying of the lid 2 caused by the swinging of the connecting rope 56 or uneven force during the lifting and lowering process, making the movement trajectory more stable and accurate, and avoiding collision between the swaying lid 2 and the vessel body 1 or the column 31, thus protecting the equipment and further improving operational safety.
[0043] like Figure 1As shown, in this embodiment, a stirring assembly 6 is provided at the bottom of the lid 2. The stirring assembly 6 includes a rotating rod 61, a second motor 62, and multiple stirring rods 63. The rotating rod 61 is rotatably mounted at the bottom of the lid 2 via a bearing. The second motor 62 is fixedly mounted at the top of the lid 2, and the output shaft of the second motor 62 is connected to the rotating rod 61. The multiple stirring rods 63 are evenly distributed on the rotating rod 61.
[0044] In use, the second motor 62 is turned on to drive the rotating rod 61 to rotate. Multiple stirring rods 63 rotate with the rotating rod 61 to stir and mix the reaction materials in the vessel body 1. By setting the stirring assembly 6, the reaction materials can be effectively mixed, improving reaction efficiency and product quality. Moreover, the stirring assembly 6 is directly installed on the vessel cover 2 and moves with the vessel cover 2, so that when the vessel cover 2 is removed for maintenance, the stirrer is also removed, which facilitates the cleaning and maintenance of the stirring assembly 6.
[0045] like Figure 1 As shown, in this embodiment, a connecting rod 64 is fixedly provided on the rotating rod 61, and a scraper 65 is fixedly provided at the end of the connecting rod 64 away from the rotating rod 61. The scraper 65 can abut against the inner wall of the vessel body 1.
[0046] During operation, the second motor 62 drives the rotating rod 61 to rotate. The connecting rod 64 rotates with the rotating rod 61, and the scraper 65 rotates with the connecting rod 64. This allows the stirring rod 63 to stir while the scraper 65 continuously scrapes away the reaction material adhering to the inner wall of the reactor body 1. By setting the scraper 65, scaling and adhesion of materials on the reactor wall are effectively prevented, improving material utilization and reducing material waste. At the same time, it keeps the inner wall of the reactor body 1 clean, preventing the long-term adhesion of materials from affecting the heat transfer performance and service life of the reactor, which is conducive to the long-term stable production of sodium pyroantimonate.
[0047] like Figure 1 and 2 As shown, in this embodiment, a limiting member 32 is fixedly installed on the column 31. The limiting member 32 can abut against the outer wall of the vessel body 1. The limiting member 32 can accurately position and fix the vessel body 1, preventing the vessel body 1 from shifting or shaking due to factors such as stirring and material impact during the production process. This ensures that the vessel body 1 is always in a stable working state and that the vessel body 1 is always in the correct working position below the top plate 4. This ensures that the lifting vessel lid 2 can be accurately aligned and closed on the vessel body 1, improving the alignment accuracy and operational reliability of the equipment.
[0048] like Figure 1 and 4As shown in this embodiment, six support components 7 are provided at the lower end of the base plate 3, wherein two support components 7 are symmetrically arranged on the left side of the lower end of the base plate 3, two support components 7 are symmetrically arranged on the middle side of the lower end of the base plate 3, and two support components 7 are symmetrically arranged on the right side of the lower end of the base plate 3.
[0049] The reasonable layout of the six support components 7 can effectively distribute the weight of the vessel body 1, improve the load-bearing capacity of the vessel body 1, and enhance the stability of the vessel body 1. This ensures that the vessel body 1 can operate smoothly whether it is in a static state or under vibration during the production process, and reduces the impact of equipment shaking on the production process and product quality.
[0050] like Figure 1 and 4 As shown, in this embodiment, the support assembly 7 includes a mounting rod 71, a caster wheel 72, and a support sleeve 73. The lower end of the base plate 3 has six threaded holes, and the corresponding mounting rod 71 can be threaded into the corresponding threaded hole. The caster wheel 72 is fixedly installed at the lower end of the mounting rod 71, and the support sleeve 73 is threaded onto the mounting rod 71 and covers the caster wheel 72.
[0051] When it is necessary to fix the vessel body 1, rotate the mounting rod 71 to move the caster 72 away from the ground, and at the same time rotate the support sleeve 73 to move it downward and make it contact the ground. The friction between the support sleeve 73 and the ground fixes the position of the vessel body 1 and prevents it from moving. When it is necessary to move the vessel body 1, loosen the support sleeve 73 and raise it, and at the same time rotate the mounting rod 71 to lower the caster 72 to contact the ground. At this time, the entire reactor can be easily moved. The caster 72 facilitates the handling and layout adjustment of the reactor and improves the flexibility of the equipment, while the adjustable support sleeve 73 provides stable support during operation. At the same time, when the caster 72 of a certain support component 7 is rotated and raised or the support sleeve 73 is moved away from the ground, there are five other support points to maintain support for the base plate 3, which has good stability in use.
[0052] Working principle: When the sodium pyroantimonate production reactor provided in this application needs to be opened, the winch 55 is first turned on to wind up the connecting rope 56, thereby pulling the reactor cover 2 connected to the other end of the connecting rope 56 to rise, so that the reactor cover 2 is separated from the reactor body 1. Then the first motor 53 is turned on to drive the screw 52 to rotate, which drives the movable frame 51 to move horizontally, thereby completely moving the reactor cover 2 to an area outside the area directly above the reactor body 1, thereby fully opening the top opening of the reactor body 1, which is convenient for feeding, cleaning or maintenance.
[0053] When the reactor is in normal use, the second motor 62 is turned on to drive the rotating rod 61 to rotate. Multiple stirring rods 63 rotate with the rotating rod 61 to stir and mix the reaction material in the reactor body 1. The connecting rod 64 rotates synchronously with the rotating rod 61, and the scraper 65 rotates with the connecting rod 64, so that while the stirring rod 63 is stirring, the scraper 65 continuously scrapes off the reaction material adhering to the inner wall of the reactor body 1.
[0054] When it is necessary to fix the vessel body 1, rotate the mounting rod 71 to drive the caster 72 away from the ground, and at the same time rotate the support sleeve 73 to move it downward and make it contact the ground. The position of the vessel body 1 is fixed by the friction between the support sleeve 73 and the ground to prevent it from moving. When it is necessary to move the vessel body 1, loosen the support sleeve 73 and raise it, and at the same time rotate the mounting rod 71 to drive the caster 72 down to contact the ground. At this time, the entire reaction vessel can be easily moved.
[0055] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A reaction vessel for producing sodium pyroantimonate, characterized in that: The vessel includes a vessel body (1), a vessel lid (2), a bottom plate (3), a top plate (4), and a lid-moving assembly (5). The vessel body (1) is mounted on the bottom plate (3), and the top plate (4) is located above the vessel body (1). Multiple columns (31) are fixedly mounted between the bottom plate (3) and the top plate (4). The vessel lid (2) can cover the top opening of the vessel body (1). The lid-moving assembly (5) is mounted on the top plate (4) and can drive the vessel body (1) to move up and down and left and right. The cover-moving assembly (5) includes a movable frame (51), a screw (52), a first motor (53), a slide bar (54), a winch (55), and a connecting rope (56). A groove (41) is provided at the bottom of the top plate (4). The screw (52) is rotatably mounted in the groove (41) via a bearing. The first motor (53) is fixedly mounted on the top plate (4), and the output shaft of the first motor (53) is connected to the screw (52). The slide bar (54) is fixedly mounted in the groove (41). Inside the movable frame (51), the top of the movable frame (51) is slidably positioned in the slide groove (41), and the movable frame (51) is threaded onto the screw (52) and slidably mounted on the slide rod (54). The winch (55) is fixedly mounted on the movable frame (51). One end of the connecting rope (56) is connected to the winch (55). The winch (55) can wind up or release the connecting rope (56). The other end of the connecting rope (56) is connected to the top of the lid (2).
2. The reaction vessel for producing sodium antimonate pyrophosphate according to claim 1, characterized in that: The movable frame (51) is provided with a guide wheel (57), and the connecting rope (56) slides through the guide wheel (57).
3. The reaction vessel for producing sodium antimonate pyrophosphate according to claim 1, characterized in that: A guide rod (58) is fixedly installed on the movable frame (51), and the guide rod (58) slides through the lid (2).
4. The reaction vessel for producing sodium antimonate pyroantimonate according to claim 1, characterized in that: The bottom of the lid (2) is provided with a stirring assembly (6). The stirring assembly (6) includes a rotating rod (61), a second motor (62) and a plurality of stirring rods (63). The rotating rod (61) is rotatably mounted on the bottom of the lid (2) via a bearing. The second motor (62) is fixedly mounted on the top of the lid (2), and the output shaft of the second motor (62) is connected to the rotating rod (61). The plurality of stirring rods (63) are evenly distributed on the rotating rod (61).
5. The reaction vessel for producing sodium antimonate pyrophosphate according to claim 4, characterized in that: A connecting rod (64) is fixedly provided on the rotating rod (61), and a scraper (65) is fixedly provided at the end of the connecting rod (64) away from the rotating rod (61). The scraper (65) can abut against the inner wall of the vessel body (1).
6. The reaction vessel for producing sodium antimonate pyroantimonate according to claim 1, characterized in that: A limiting member (32) is fixedly installed on the column (31), and the limiting member (32) can abut against the outer wall of the vessel body (1).
7. The reaction vessel for producing sodium antimonate pyroantimonate according to claim 1, characterized in that: The bottom of the base plate (3) is provided with six support components (7), two of which are symmetrically arranged on the left side of the bottom of the base plate (3), two of which are symmetrically arranged on the middle side of the bottom of the base plate (3), and two of which are symmetrically arranged on the right side of the bottom of the base plate (3).
8. The reaction vessel for producing sodium antimonate pyroantimonate according to claim 7, characterized in that: The support assembly (7) includes a mounting rod (71), a caster wheel (72), and a support sleeve (73). The bottom end of the base plate (3) has six threaded holes. The mounting rod (71) can be threaded into the corresponding threaded hole. The caster wheel (72) is fixedly set at the bottom end of the mounting rod (71). The support sleeve (73) is threaded onto the mounting rod (71) and covers the caster wheel (72).
Citation Information
Patent Citations
Stirring kettle capable of preventing wall adhesion during preparation of sodium pyroantimonate
CN222093182U