A multi-section precise temperature control adjusting device for hot galvanizing zinc liquid

Abstract

The present application relates to hot galvanizing technical field, and disclose a kind of for hot galvanizing zinc liquid multi-section precision temperature control regulating device, solve the current zinc pot zinc liquid there is obvious temperature gradient and lead to the problem of poor hot galvanizing effect, it includes zinc pot, the inner wall of the zinc pot is fixedly connected with multiple U-shaped frames at equal angles, each U-shaped frame is installed with thermocouple, U-shaped frame is equipped with adjusting mechanism, adjusting mechanism is equipped with mounting mechanism and protection mechanism on, adjusting mechanism includes the U-shaped round bar fixed in the outside of U-shaped frame, the outside middle part of U-shaped round bar is fixedly sleeved with L-shaped seat, L-shaped seat is fixed to the top of U-shaped frame, the top of L-shaped seat is fixedly connected with stand, the outside of stand is movably sleeved with top plate, the bottom of top plate is fixedly connected with L-shaped plate;The present application, the output power of corresponding heating unit can be controlled separately in each partition, so as to facilitate the effect of hot galvanizing.

Description

Technical Field

[0001] This invention belongs to the field of hot-dip galvanizing technology, specifically a multi-segment precise temperature control device for hot-dip galvanizing zinc bath. Background Technology

[0002] Hot-dip galvanizing is the mainstream anti-corrosion processing technology for steel structures, pipes, and profiles. It involves immersing metal workpieces in molten zinc, where a dense zinc protective layer is formed on the workpiece surface through a high-temperature metallurgical reaction, which greatly improves the steel's resistance to corrosion. It is widely used in the production of power, infrastructure, and transportation components. Hot-dip galvanizing relies on a large-capacity zinc pot to hold high-temperature liquid zinc, and the stable temperature of the zinc liquid is the core condition for ensuring the quality of the galvanized finished product.

[0003] In actual production, steel workpieces at room temperature are continuously immersed in the zinc pot. The upper layer of zinc liquid around the workpiece will quickly lose heat and form a low-temperature zone. The bottom and side walls of the zinc pot are close to the combustion heating mechanism, which easily forms local high-temperature zones. The entire zinc pot has a natural and obvious temperature gradient. Traditional temperature control equipment only uniformly adjusts the heating power of the zinc pot as a whole, and cannot specifically balance the temperature difference in different areas. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a multi-segment precise temperature control device for hot-dip galvanizing zinc liquid, which effectively solves the problem that the zinc pot zinc liquid has obvious temperature gradient, resulting in poor hot-dip galvanizing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-segment precise temperature control and adjustment device for hot-dip galvanizing zinc liquid, comprising a zinc pot, wherein multiple U-shaped frames are fixedly connected at equal angles on the inner wall of the zinc pot, each U-shaped frame is equipped with a thermocouple, the U-shaped frame is provided with an adjustment mechanism, and the adjustment mechanism is provided with an installation mechanism and a protective mechanism.

[0006] The adjustment mechanism includes a U-shaped rod fixed to the outside of the U-shaped frame, an L-shaped seat fixedly sleeved on the middle of the outside of the U-shaped rod, the L-shaped seat fixed to the top of the U-shaped frame, a column fixedly connected to the top of the L-shaped seat, a top plate movably sleeved on the outside of the column, an L-shaped plate fixedly connected to the bottom of the top plate, the L-shaped plate passing through the L-shaped seat and movably connected to the L-shaped seat, and a thermocouple mounted on the L-shaped plate.

[0007] Preferably, two slide rods are symmetrically fixedly connected to the inner side of the L-shaped seat, and a slide plate is movably sleeved between the two slide rods. An insert block is fixedly connected to the side of the slide plate near the L-shaped plate. Multiple slots are provided at equal intervals on the side of the L-shaped plate near the slide plate. The insert block is inserted into the corresponding slot. Two return springs are symmetrically fixedly connected between the slide plate and the L-shaped seat. The two return springs are respectively sleeved on the outer side of the two slide rods.

[0008] Preferably, a pull rod is fixedly connected to the side of the slide away from the insert block, and the end of the pull rod away from the slide passes through the L-shaped seat and is fixedly connected to a handle.

[0009] Preferably, the installation mechanism includes an outer ring located on the inner bottom wall of the L-shaped plate, the outer ring being fixedly sleeved on the outside of the thermocouple, and the thermocouple penetrating the L-shaped plate. A positioning block is fixedly connected to the inner bottom wall of the L-shaped plate, and the outer ring is sleeved on the outside of the positioning block. Two L-shaped round rods are symmetrically fixedly connected to the inner side of the L-shaped plate, and a movable plate is movably sleeved between the two L-shaped round rods. A limiting cylinder is fixedly connected to the side of the movable plate near the outer ring, and a limiting rod is fixedly connected to the outside of the outer ring. The limiting cylinder is sleeved on the outside of the limiting rod and abuts against the outer ring.

[0010] Preferably, the L-shaped plate has a side groove on its side, a lead screw is rotatably connected to the inner side of the side groove, a handwheel is fixedly connected to the top of the lead screw, a nut is threaded onto the outer side of the lead screw, the nut is slidably connected to the side groove, a drive rod is rotatably connected to the outer side of the nut, and the bottom end of the drive rod is rotatably connected to the top of the movable plate.

[0011] Preferably, the protective mechanism includes an arc-shaped protective frame located outside the U-shaped frame. Two guide plates are symmetrically fixedly connected to the inner side of the arc-shaped protective frame. Guide grooves are provided on both sides of the U-shaped frame. Guide columns are fixedly connected to the inner side of the two guide grooves. The two guide plates are respectively movably sleeved on the outer side of the two guide columns.

[0012] Preferably, two lifting plates are symmetrically and movably sleeved on the outer side of the U-shaped rod, and movable rods are rotatably connected to the outer side of each of the two lifting plates. The bottom ends of the two movable rods are rotatably connected to the outer side of the two guide plates, respectively.

[0013] Preferably, two sleeves are symmetrically fixedly sleeved on the outer side of the U-shaped rod, and a buffer spring is fixedly connected to the bottom end of each sleeve. The bottom ends of the two buffer springs are respectively fixed to the top of the two lifting plates, and the two buffer springs are sleeved on the outer side of the U-shaped rod.

[0014] Preferably, support blocks are fixedly connected to both sides of the U-shaped frame, both support blocks are located on the outside of the U-shaped rod, and rubber rings are fixedly connected to the bottom of both support blocks, with the two rubber rings located above the two lifting plates respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention, by fixing multiple U-shaped frames at equal angles on the inner wall of a zinc pot and installing thermocouples in each U-shaped frame, can collect real-time temperature data of each circumferential zone inside the zinc pot. By pulling the handle, the insert can be removed from the corresponding slot. The height of the thermocouple can be adjusted by moving the L-shaped plate longitudinally. At the same time, the insert can be inserted into the corresponding slot under the action of two return springs, which facilitates the fixation of the L-shaped plate. This allows for the collection of real-time temperature data of different vertical levels inside the zinc pot, and enables individual control of the output power of the corresponding heating unit for each zone, thereby improving the hot-dip galvanizing effect.

[0017] 2. This invention facilitates the thermocouple's penetration through the L-shaped plate by placing the outer ring around the outside of the positioning block, and by rotating the handwheel, the limiting sleeve can be placed around the outside of the limiting rod to limit the outer ring, thereby facilitating the quick installation and fixation of the thermocouple.

[0018] 3. This invention, by setting an arc-shaped protective frame on the outside of the U-shaped frame, can effectively prevent the thermocouple from being impacted and damaged by the workpiece. When the workpiece directly impacts the arc-shaped protective frame, the two lifting plates can move, causing the two rubber rings to collide and compressing the two buffer springs, thus facilitating the buffering effect. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the multi-section precise temperature control and regulation device for hot-dip galvanizing zinc liquid according to the present invention.

[0022] Figure 2 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure between the L-shaped plate and the L-shaped seat of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the disassembled structure of the outer ring and the movable plate of the present invention;

[0026] Figure 6 This is a schematic diagram of the protective mechanism structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the lifting plate structure of the present invention.

[0028] In the diagram: 1. Zinc pot; 2. Adjustment mechanism; 201. U-shaped rod; 202. L-shaped plate; 203. L-shaped seat; 204. Column; 205. Top plate; 206. Slide rod; 207. Insert block; 208. Slot; 209. Slide plate; 2010. Return spring; 2011. Handle; 2012. Pull rod; 3. Installation mechanism; 301. Outer ring; 302. Movable plate; 303. Handwheel; 304. Side groove; 305. Lead screw; 306. Nut; 307. Drive rod; 308. L-shaped round rod; 309. Limiting cylinder; 3010. Limiting rod; 3011. Positioning block; 4. Protective mechanism; 401. Arc-shaped protective frame; 402. Lifting plate; 403. Guide column; 404. Guide groove; 405. Guide plate; 406. Movable rod; 407. Rubber ring; 408. Sleeve; 409. Support block; 4010. Buffer spring; 5. U-shaped frame; 6. Thermocouple. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Example 1, by Figures 1-7 The present invention relates to a multi-segment precise temperature control device for hot-dip galvanizing zinc liquid, comprising a zinc pot 1, wherein multiple U-shaped frames 5 are fixedly connected at equal angles on the inner wall of the zinc pot 1, each U-shaped frame 5 is equipped with a thermocouple 6, the U-shaped frame 5 is provided with an adjustment mechanism 2, and the adjustment mechanism 2 is provided with an installation mechanism 3 and a protective mechanism 4.

[0031] In Embodiment 2, based on Embodiment 1, the adjusting mechanism 2 includes a U-shaped rod 201 fixed to the outside of the U-shaped frame 5. An L-shaped seat 203 is fixedly sleeved on the middle of the outer side of the U-shaped rod 201. The L-shaped seat 203 is fixed to the top of the U-shaped frame 5. A column 204 is fixedly connected to the top of the L-shaped seat 203. A top plate 205 is movably sleeved on the outside of the column 204. An L-shaped plate 202 is fixedly connected to the bottom of the top plate 205. The L-shaped plate 202 passes through the L-shaped seat 203 and is movably connected to it. A thermocouple 6 is installed on the L-shaped plate 202. Two sliding rods 206 are symmetrically fixedly connected to the inner side of the L-shaped seat 203. A sliding plate 209 is movably connected between the slide plates 206. A plug 207 is fixedly connected to the side of the slide plate 209 near the L-shaped plate 202. Multiple slots 208 are provided at equal intervals on the side of the L-shaped plate 202 near the slide plate 209. The plug 207 is inserted into the corresponding slot 208. Two return springs 2010 are symmetrically fixedly connected between the slide plate 209 and the L-shaped base 203. The two return springs 2010 are respectively sleeved on the outside of the two slide rods 206. A pull rod 2012 is fixedly connected to the side of the slide plate 209 away from the plug 207. The end of the pull rod 2012 away from the slide plate 209 passes through the L-shaped base 203 and is fixedly connected to a handle 2011.

[0032] First, multiple U-shaped frames 5 are fixedly connected at equal angles on the inner wall of the zinc pot 1. Each U-shaped frame 5 is equipped with a thermocouple 6 to collect real-time temperature data of each zone in the circumferential direction of the zinc pot 1. When the handle 2011 is pulled, the sliding plate 209 is driven to slide along the two sliding rods 206 through the pull rod 2012. At this time, both return springs 2010 are compressed, and the insert 207 moves until it is removed from the corresponding slot 208, thus releasing the restriction effect on the L-shaped plate 202.

[0033] Then, the top plate 205 slides along the column 204, causing the L-shaped plate 202 to move longitudinally, changing the height position of the thermocouple 6. Then, the handle 2011 is released, and the insert 207 is inserted into the corresponding slot 208 under the action of the two return springs 2010, fixing the L-shaped plate 202 and the height position of the thermocouple 6. This allows for the collection of real-time temperature data of different vertical layers in the zinc pot 1. For zones with temperatures lower than the process standard, the output power of the corresponding heating unit is increased separately. For areas with local overheating, the heating heat of that area is reduced. There is no need to adjust the temperature of the zinc liquid in the zinc pot 1 synchronously and uniformly. By independently controlling the temperature of each zone to compensate for the temperature difference in each zone, precise temperature control of the zinc liquid in multiple sections is achieved, stabilizing the temperature of the zinc liquid in all parts of the zinc pot 1, and reducing coating thickness deviation and zinc dross formation.

[0034] In embodiment three, based on embodiment one, the mounting mechanism 3 includes an outer ring 301 located on the inner bottom wall of the L-shaped plate 202. The outer ring 301 is fixedly sleeved on the outside of the thermocouple 6, and the thermocouple 6 passes through the L-shaped plate 202. A positioning block 3011 is fixedly connected to the inner bottom wall of the L-shaped plate 202, and the outer ring 301 is sleeved on the outside of the positioning block 3011. Two L-shaped round rods 308 are symmetrically fixedly connected to the inner side of the L-shaped plate 202. A movable plate 302 is movably sleeved between the two L-shaped round rods 308. A limiter is fixedly connected to the side of the movable plate 302 near the outer ring 301. A limiting rod 3010 is fixedly connected to the outer side of the cylinder 309 and the outer ring 301. The limiting cylinder 309 is sleeved on the outer side of the limiting rod 3010 and abuts against the outer ring 301. The side of the L-shaped plate 202 is provided with a side groove 304. A lead screw 305 is rotatably connected to the inner side of the side groove 304. A handwheel 303 is fixedly connected to the top of the lead screw 305. A nut 306 is threaded on the outer side of the lead screw 305. The nut 306 is slidably connected to the side groove 304. A drive rod 307 is rotatably connected to the outer side of the nut 306. The bottom end of the drive rod 307 is rotatably connected to the top of the movable plate 302.

[0035] First, the thermocouple 6 is inserted through the L-shaped plate 202, so that the outer ring 301 is fitted onto the outside of the positioning block 3011 until it is located on the inner bottom wall of the L-shaped plate 202. Then, the handwheel 303 is rotated to drive the lead screw 305 to rotate, and the lead screw nut 306 slides down along the side groove 304. Then, the driving rod 307 drives the movable plate 302 to slide horizontally along the two L-shaped round rods 308. At the same time, the limiting cylinder 309 moves and fits onto the outside of the limiting rod 3010 until it abuts against the outer ring 301, thereby limiting the outer ring 301. Finally, the rapid installation and fixing of the thermocouple 6 is completed.

[0036] In Example 4, based on Example 1, the protective mechanism 4 includes an arc-shaped protective frame 401 located outside the U-shaped frame 5. Two guide plates 405 are symmetrically fixedly connected to the inner side of the arc-shaped protective frame 401. Guide grooves 404 are provided on both sides of the U-shaped frame 5. Guide posts 403 are fixedly connected to the inner side of each of the two guide grooves 404. The two guide plates 405 are movably sleeved on the outer side of the two guide posts 403. Two lifting plates 402 are symmetrically movably sleeved on the outer side of the U-shaped rod 201. Movable rods 406 are rotatably connected to the outer side of each of the two lifting plates 402. The bottom ends of the two movable rods 406 are rotatably connected to the two guide posts 403. Two sleeves 408 are symmetrically fixedly sleeved on the outside of the U-shaped round rod 201 on the outside of the plate 405. The bottom ends of the two sleeves 408 are fixedly connected to buffer springs 4010. The bottom ends of the two buffer springs 4010 are respectively fixed to the top of the two lifting plates 402, and the two buffer springs 4010 are sleeved on the outside of the U-shaped round rod 201. Support blocks 409 are fixedly connected to both sides of the U-shaped frame 5. The two support blocks 409 are located on the outside of the U-shaped round rod 201. The bottom of the two support blocks 409 is fixedly connected to rubber rings 407, and the two rubber rings 407 are respectively located above the two lifting plates 402.

[0037] An arc-shaped protective frame 401 is installed on the outside of the U-shaped frame 5 to shield and protect the thermocouple 6, preventing the thermocouple 6 from being damaged by direct impact from the workpiece. When the workpiece directly impacts the arc-shaped protective frame 401, it drives the two guide plates 405 to slide along the two guide columns 403 respectively. Through the two movable rods 406, the two lifting plates 402 are driven to slide upward along the U-shaped round rod 201 respectively. At this time, the two buffer springs 4010 are compressed. At the same time, the two lifting plates 402 impact the two rubber rings 407 respectively, causing the two rubber rings 407 to deform, and finally achieving buffering of the impact force.

Claims

1. A multi-section precise temperature control device for hot-dip galvanizing zinc bath, comprising a zinc pot (1), characterized in that: The zinc pot (1) has multiple U-shaped frames (5) fixedly connected at equal angles on its inner wall. Each U-shaped frame (5) is equipped with a thermocouple (6). The U-shaped frame (5) is equipped with an adjustment mechanism (2). The adjustment mechanism (2) is equipped with an installation mechanism (3) and a protective mechanism (4). The adjustment mechanism (2) includes a U-shaped rod (201) fixed to the outside of the U-shaped frame (5), an L-shaped seat (203) fixedly sleeved on the middle of the outside of the U-shaped rod (201), the L-shaped seat (203) fixed to the top of the U-shaped frame (5), a column (204) fixedly connected to the top of the L-shaped seat (203), a top plate (205) movably sleeved on the outside of the column (204), an L-shaped plate (202) fixedly connected to the bottom of the top plate (205), the L-shaped plate (202) passing through the L-shaped seat (203) and movably connected to the L-shaped seat (203), and a thermocouple (6) installed on the L-shaped plate (202).

2. The multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: Two slide rods (206) are symmetrically fixedly connected to the inner side of the L-shaped base (203). A slide plate (209) is movably sleeved between the two slide rods (206). A plug (207) is fixedly connected to the side of the slide plate (209) near the L-shaped plate (202). Multiple slots (208) are provided at equal intervals on the side of the L-shaped plate (202) near the slide plate (209). The plug (207) is inserted into the corresponding slot (208). Two return springs (2010) are symmetrically fixedly connected between the slide plate (209) and the L-shaped base (203). The two return springs (2010) are respectively sleeved on the outside of the two slide rods (206).

3. The multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 2, characterized in that: A pull rod (2012) is fixedly connected to the side of the slide plate (209) away from the insert block (207). The end of the pull rod (2012) away from the slide plate (209) passes through the L-shaped seat (203) and is fixedly connected to a handle (2011).

4. The multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: The installation mechanism (3) includes an outer ring (301) located on the inner bottom wall of the L-shaped plate (202). The outer ring (301) is fixedly sleeved on the outside of the thermocouple (6), and the thermocouple (6) passes through the L-shaped plate (202). A positioning block (3011) is fixedly connected on the inner bottom wall of the L-shaped plate (202). The outer ring (301) is sleeved on the outside of the positioning block (3011). Two L-shaped round rods (308) are symmetrically fixedly connected on the inner side of the L-shaped plate (202). A movable plate (302) is movably sleeved between the two L-shaped round rods (308). A limiting cylinder (309) is fixedly connected on the side of the movable plate (302) close to the outer ring (301). A limiting rod (3010) is fixedly connected on the outside of the outer ring (301). The limiting cylinder (309) is sleeved on the outside of the limiting rod (3010) and abuts against the outer ring (301).

5. A multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: The L-shaped plate (202) has a side groove (304) on its side. A lead screw (305) is rotatably connected to the inner side of the side groove (304). A handwheel (303) is fixedly connected to the top of the lead screw (305). A nut (306) is threaded onto the outer side of the lead screw (305). The nut (306) is slidably connected to the side groove (304). A drive rod (307) is rotatably connected to the outer side of the nut (306). The bottom end of the drive rod (307) is rotatably connected to the top of the movable plate (302).

6. The multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: The protective mechanism (4) includes an arc-shaped protective frame (401) located outside the U-shaped frame (5). Two guide plates (405) are symmetrically fixedly connected to the inner side of the arc-shaped protective frame (401). Guide grooves (404) are provided on both sides of the U-shaped frame (5). Guide columns (403) are fixedly connected to the inner side of the two guide grooves (404). The two guide plates (405) are respectively movably sleeved on the outer side of the two guide columns (403).

7. A multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: Two lifting plates (402) are symmetrically and movably sleeved on the outer side of the U-shaped round rod (201). The outer side of each of the two lifting plates (402) is rotatably connected to a movable rod (406). The bottom ends of the two movable rods (406) are rotatably connected to the outer side of the two guide plates (405).

8. A multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: Two sleeves (408) are symmetrically fixedly sleeved on the outside of the U-shaped rod (201). The bottom ends of the two sleeves (408) are fixedly connected to buffer springs (4010). The bottom ends of the two buffer springs (4010) are respectively fixed to the top of the two lifting plates (402), and the two buffer springs (4010) are sleeved on the outside of the U-shaped rod (201).

9. A multi-section precise temperature control and regulation device for hot-dip galvanizing zinc bath according to claim 1, characterized in that: The U-shaped frame (5) is fixedly connected to two support blocks (409) on both sides. The two support blocks (409) are located on the outside of the U-shaped round rod (201). The bottom of the two support blocks (409) is fixedly connected to rubber rings (407), and the two rubber rings (407) are located above the two lifting plates (402) respectively.

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