Design, manufacture and use method of a zinc pot bottom slag extraction device

Abstract

The present invention discloses a manufacturing method for a zinc pot bottom slag extraction device, which includes three parts: a design method for the bottom slag extraction device, a composition and manufacture of the bottom slag extraction device, and a method for using the bottom slag extraction device. The design method is a design formula that relates the power required for the bottom slag extraction device to suck and the discharge flow rate. The composition and manufacture of the bottom slag extraction device mainly include a liquid suction pipe, a power pipe, a counterweight and a lifting lug, a slag bucket, a positioning traction rope, etc. The liquid suction pipe and the power pipe of the bottom slag extraction device are welded with stainless steel thick-walled steel pipes. The present invention adopts nitrogen as a whole set of power, and the overall structural design is reasonable. It can provide a safe and efficient method of use when in use, and can achieve the purpose of improving the efficiency of extracting the bottom slag in the zinc pot and sampling at various positions, so as to better purify the zinc liquid inside the zinc pot and grasp the composition of the zinc liquid at different positions in the zinc pot, greatly improving the functionality during application and having strong practicality.

Description

Technical Field

[0001] The present invention relates to the field of new material technology, in particular to a design, manufacturing and use method of a zinc pot bottom slag extraction device. Background Art

[0002] The zinc pot equipment of the hot-dip galvanizing unit is used to galvanize the annealed strip steel. When the strip steel enters the zinc pot for galvanizing, zinc and iron will react to produce zinc slag. The amount of zinc slag is related to the composition of zinc liquid, the temperature of the strip steel entering the zinc pot, the amount of strip steel taken away, etc. However, zinc slag will always be produced in the zinc pot. Due to the different types of hot-dip galvanized products produced, the galvanizing process is also different, and the amount of slag produced is also different. When the bottom slag is deposited too much, it will be stirred by the movement of the strip steel and become suspended slag, thus affecting the quality of the product.

[0003] After searching, the Chinese patent publication number CN105422469A discloses a zinc slag pump for a cold-rolled strip galvanizing production line. The zinc slag pump housing (1) is connected to a driving motor (2). A planetary reducer (3) and an impeller shaft (4) are arranged in the zinc slag pump housing (1). The driving motor (2) is connected to the input end of the planetary reducer (3). The impeller shaft (4) is connected to the output end of the planetary reducer (3). Blades (5) are arranged on the impeller shaft (4). The driving motor (2) is connected to a control component (6) capable of controlling the start and stop of the driving motor (2). The zinc slag pump housing (1) is connected to a nitrogen tank (8) through a nitrogen delivery pipeline (7). The zinc slag pump of the present invention has a simple structure. While ensuring that the zinc slag on the surface of the zinc liquid is effectively and reliably pumped away, it can also improve maintenance efficiency and running stability, significantly improve the efficiency of zinc slag pump maintenance, and reduce the labor intensity of workers.

[0004] Chinese Patent Publication No. CN109513229A discloses an apparatus and method for collecting volatiles from aluminum-zinc nonferrous smelting slag at high temperatures. The apparatus and method comprise a tubular furnace / vacuum atmosphere furnace, a protective gas, a water pump, and a cooling tower. A sealing element is provided at one end of the tubular furnace / vacuum atmosphere furnace, through which a pipeline carrying protective gas is connected to the tubular furnace / vacuum atmosphere furnace; the other end is connected to the cooling tower via a water pump to form a cooling circuit. A crucible for placing a sample is provided in the constant temperature section of the tubular furnace / vacuum atmosphere furnace, and a collector is provided at the connection between one end of the tubular furnace / vacuum atmosphere furnace and the cooling circuit. The present invention can efficiently and completely collect volatiles from lead-zinc slag at high temperatures without changing the properties of the material. Using the volatiles collected by the present invention to study the high-temperature physical properties of lead-zinc slag is more accurate and has greater reference value.

[0005] Chinese Patent Publication No. CN209260177U discloses a hot-dip galvanizing slag scooping device, comprising a zinc pot, wherein liquid metallic zinc is arranged inside the zinc pot, a furnace nose is arranged above the zinc pot, a sinking roller is installed below the zinc pot, a strip connected to the sinking roller is arranged inside the furnace nose, an air knife installed on the strip is arranged above the sinking roller, ultrasonic vibrators are arranged on both sides of the upper outer surface of the furnace nose, one side of the ultrasonic vibrator is connected to an ultrasonic transmitter, and an exhaust outlet installed on the outer surface of the furnace nose is provided on the lower side of the ultrasonic vibrator; the exhaust outlet and the air inlet nozzle cooperate to promote the formation of an oxide layer on the liquid surface, accelerate the discharge of residual zinc vapor, and suppress zinc residue; the purification chamber and the zinc liquid extraction port cooperate to purify the zinc liquid and return the zinc liquid to the zinc pot again, thereby purifying the zinc pot, reducing the incidence of zinc ash and zinc slag defects, improving production efficiency, and improving the surface quality of the product.

[0006] The above three patents have the following deficiencies: the overall structural design is not reasonable enough, and the purpose of safe and efficient use cannot be achieved during use; the efficiency of extracting the bottom slag in the zinc pot is not high, and a strong effect of purifying the zinc liquid cannot be achieved, and there are certain limitations during use. Summary of the Invention

[0007] Aiming at the deficiencies in the background technology, the present invention provides a method for manufacturing a zinc pot bottom slag extraction device.

[0008] To solve the above problem, the present invention adopts the following technical solutions: the design of the zinc pot bottom slag extraction device, including the calculation method of the pressure of the power source required for suction and the discharge flow rate of zinc liquid during suction. The calculation formula of the pressure P required for the power source during suction is: The calculation formula of zinc liquid discharge flow Q during suction is: The meanings of the codes in the two formulas are: P-pressure bar required to provide power source during suction, Q-discharge flow rate of zinc liquid during suction t / min, ρ-density of zinc liquid 10 3 kg / m 3 , λ-along-the-line resistance coefficient, ζ-local resistance coefficient, D-inner diameter of the suction pipe (mm), d-inner diameter of the power pipe (mm), H-length of the vertical section of the suction pipe (mm), L-total length of the top and bottom transverse sections of the suction pipe (mm), h1-height of the bottom of the zinc pot from the liquid level (mm), h2-total height of the power pipe (mm), h3-length of the discharge section of the suction pipe (mm), h4-vertical distance between the zinc pot liquid level and the discharge pipe outlet (mm), g-acceleration of gravity; and the structure and composition of a zinc pot bottom slag extraction device formed based on the above theoretical calculations.

[0009] A zinc pot bottom slag extraction device comprises a liquid suction pipe, a zinc pot, a power pipe, and a slag hopper, the liquid suction pipe is installed inside the zinc pot, a slag hopper is provided above the zinc pot, the top of the slag hopper is movably connected to a sling, the zinc pot is provided with a power pipe, a counterweight is fixedly connected to the bottom of the liquid suction pipe, a balance block is installed at the tail of the liquid suction pipe, a hanging point is provided above the liquid suction pipe, a zinc pump outlet is provided on the right side of the liquid suction pipe, a filter device is installed above the zinc pot, a filter hopper is provided inside the filter device, a filter screen is installed inside the filter device, a safety counterweight is provided on the right side of the filter device, a splash plate is fixedly connected to the top of the right side of the filter device, a drain pipe is provided on the left side of the filter device, and a diffusion pipe is installed below the drain pipe.

[0010] As a further preferred embodiment of the present invention, a balance pipe is installed at the tail of the liquid suction pipe, a straight-through suction pipe is provided at the bottom of the liquid suction pipe, a pump suction port is opened at the bottom of the straight-through suction pipe, a counterweight is installed at the top of the straight-through suction pipe, a surrounding plate is provided at the bottom of the pump suction port, a bottom flow channel of the surrounding plate, a grid plate is provided under the surrounding plate, an eccentric suction pipe is provided on the side of the straight-through suction pipe according to the requirements of the suction point, and an eccentric suction pipe support is installed at the bottom of the eccentric suction pipe.

[0011] As a further preferred embodiment of the present invention, the zinc pot is provided with a pot shell on the outside, the zinc pot is filled with refractory material, and the zinc pot is provided with a first zinc pot area, a second zinc pot area, a third zinc pot area and a fourth zinc pot area.

[0012] As a further preferred embodiment of the present invention, scale lines are provided on the surface of the hopper, and the bottom of the hopper is fixedly connected to the base.

[0013] As a further preferred embodiment of the present invention, the interior of the zinc pot is fixedly connected to a grate, the bottom of the grate is provided with a nose tip, and the bottom of the sling is provided with a sling.

[0014] As a further preferred embodiment of the present invention, an air intake hard pipe is provided at the bottom of the power tube, an air intake hose is provided at the top of the power tube, a fixing frame is installed on the inner side of the power tube, zinc liquid is provided inside the zinc pot, the top of the zinc liquid is the zinc liquid level, and bottom slag is provided at the bottom of the zinc liquid. The outside of the air intake hose is fixedly connected to a traction rope, and the traction rope is set as a soft rope. A hook is installed on the top of the suction tube, and the inside of the hook is fixedly connected to a steel cable.

[0015] The usage methods include the following:

[0016] S1. Preparation of bottom slag extraction conditions: First, dismantle the equipment that needs to be dismantled to ensure that there is no steel belt in the zinc pot area, remove the furnace nose tip, and move the air knife and zinc pot roller. Then, protect the surrounding equipment and cover the equipment around the zinc pot with ceramic fiber cloth. Lay asbestos fiber blankets in the area between the main operation room and the zinc pot for heat insulation, and lay waste boards on the fiber blankets to place the slag bucket. Install safety baffles between the main operation room and the zinc pot, close to the main operation room and on both sides, prepare one straight-through and one eccentric liquid suction pipe, and cover the straight pipe section of the liquid suction pipe with asbestos fiber blanket to reduce the risk of slag hopper. Heat causes the zinc liquid to solidify; two thin steel chains over 15m in length are welded to the outlet pipe for fixing. Operators pull and guide them to stabilize the suction pipe and the precise positioning of the outlet. Next, the slag buckets are arranged. A 4*6 slag bucket is set up in the area between the main operation room and the zinc pot. At the same time, it must be confirmed that there is no water in the slag bucket. The specific arrangement is based on the actual situation on site. Finally, the bottom slag extraction area is sealed with red and white ropes and warning signs, and special personnel are assigned to guide the operation; safety instructions are given to the personnel involved in the bottom slag extraction operation, and intercom communication equipment is provided;

[0017] S2, personnel configuration: operator configuration: 1 person in charge of the site; driving personnel: 2 people; pipette guidance and positioning: 2 people; pipette nitrogen valve operation: 2 people; forklift driver: assist in operation as needed;

[0018] S3, start slag extraction: move the zinc pot crane to the neutral position on the transmission side of the zinc pot, use a wire rope to lift the bottom slag extraction pump that has been connected to the nitrogen hose, and confirm that the equipment is basically in a balanced state. Then slowly move the suction pipe to the top of the zinc pot, use the zinc pot temperature to preheat the pump, slowly put the pump into the zinc liquid, and insert it until it can no longer be inserted. The pump suction port contacts the bottom of the zinc pot, and confirm that the zinc liquid discharge port of the zinc liquid pump is placed in the zinc hopper. Slowly open the nitrogen supply manual valve, and adjust the valve opening while observing the discharge flow to avoid zinc liquid splashing. Then use the crane to lift the bottom slag extraction pump to change its position, and judge according to the position marked on the pot edge. , ensure that the discharge port of the bottom slag pump is located in the other zinc hopper after the shift, and then slowly open the nitrogen manual valve to carry out the bottom slag extraction operation; the crane operator and the nitrogen manual valve operator must cooperate well, and then use the straight-through bottom slag pump to complete the bottom slag extraction operation in the front area of ​​the grate, and move it out of the working position, and then replace it with another set of eccentric bottom slag pumps, repeat the above process, complete the bottom slag extraction operation in the rear area of ​​the grate, and finally complete the bottom slag extraction, completely close the nitrogen manual valve, and at the same time, lift the bottom zinc extraction device away from the working position; move the small slag hopper to the offline position, and then restore all on-site driving limits and guardrails and other temporary measures.

[0019] As a further preferred embodiment of the present invention, in step S2, the operating personnel are configured as follows: 1 person is in charge of the site, who observes the site situation and coordinates and directs on the platform above the furnace nose; 2 drivers, one is responsible for directing and the other is responsible for operating, who operate on the platform above the furnace nose; 2 people are responsible for guiding and positioning the pipette, 2 on the WS side and 2 on the DS side, who pull and guide the pipette; 2 people are responsible for operating the nitrogen valve of the pipette, who are responsible for opening and closing the nitrogen valve and regulating the flow; 2 forklift drivers are responsible for cooperating to operate as needed.

[0020] As a further preferred embodiment of the present invention, in step S3, the zinc pot crane is moved to a neutral position on the transmission side of the zinc pot, and the bottom slag pump connected to the nitrogen hose is hoisted with a wire rope to confirm that the equipment is basically in a balanced state. Then, the suction pipe is slowly moved above the zinc pot and stays above the zinc liquid for about 5-10 minutes. The pump is preheated using the temperature of the zinc pot, and the pump is slowly placed into the zinc liquid until it cannot be inserted any further. The pump suction port contacts the bottom of the zinc pot at a height of about 50-200 mm. It is confirmed that the zinc liquid discharge port of the zinc liquid pump is placed in the zinc hopper, and the nitrogen gas supply manual valve is slowly opened. The valve is adjusted while observing the discharge flow rate. Adjust the door opening to avoid splashing of zinc liquid. When the liquid level in the zinc hopper reaches nearly 1 / 2, gradually close the nitrogen hand valve. Then use the crane to lift the bottom slag pump to change its position. At the same time, move the distance of about 400mm each time. According to the position of the pot edge mark, make sure that the discharge port of the bottom slag pump is located in the other zinc hopper after the shift. Then slowly open the nitrogen hand valve to perform the bottom slag extraction operation. The crane operator and the nitrogen hand valve operator must cooperate well. Then use the straight-through bottom slag pump to complete the bottom slag extraction operation in the front area of ​​the grate. Then lift the bottom slag pump to a height of about 200mm and move it out of the working position. The stop time at each workstation is 7-10 seconds. It takes about 1 minute to fill each bucket. Then, another set of eccentric bottom slag pumps is replaced and the above process is repeated to complete the bottom slag extraction operation in the rear area of ​​the grate. Finally, the bottom slag extraction is completed, the nitrogen manual valve is completely closed, and the bottom zinc extraction device is hoisted away from the working position; the small slag bucket is moved to the offline position, and then all temporary measures such as on-site driving limits and guardrails are restored. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the zinc extraction device of the present invention;

[0022] Figure 2 This is a front view of the zinc extraction device of the present invention;

[0023] Figure 3 Schematic diagram of the suction port structure of the pipette of the present invention;

[0024] Figure 4 It is the zinc extraction arrangement diagram of the present invention;

[0025] Figure 5 It is the zinc extraction arrangement diagram of the present invention;

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

[0027] Figure 7 It is a schematic diagram of the slag bucket structure of the present invention.

[0028] In the figure, the pipette-1, the top horizontal section of the pipette-111, the bottom horizontal section of the pipette-112, the bottom vertical section of the pipette-113, the discharge section of the pipette-114, the counterweight-11, the balance block-12, the hanging point-13, the zinc pump outlet-14, the filter device-15, the filter bucket-151, the splash plate-152, the filter screen-153, the safety counterweight-154, the discharge pipe-155, the diffuser-156, the balance pipe-16, the pump suction port-17, the enclosure-171, the mesh partition-172, the flow channel-173, the straight pipe-18, the eccentric pipe-19, the eccentric pipe Suction pipe support-191, zinc pot-2, pot shell-21, refractory material-22, third zinc pot area-23, first zinc pot area-24, fourth zinc pot area-25, second zinc pot area-26, slag hopper-3, scale mark-31, base-32, grate-4, furnace nose tip-41, sling-5, sling-51, power pipe-6, air intake rigid pipe-61, air intake hose-62, fixing bracket-63, zinc liquid-7, zinc liquid level-71, bottom slag pump-72, traction rope-8, soft rope-81, steel cable-82, hook-83, safety baffle-9, main operation room-10. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The present invention provides a technical solution: when calculating the pressure P of the power source required for suction and the zinc liquid discharge flow rate Q during suction, the values ​​are: ρ=7.8, λ=0.028, ζ=2, D=80, d=20, H=3750, L=3000, h1=2785, h2=400, h3=3150, h4=300, according to the formula:

[0031] and The calculation results show that P = 3.9 bar, Q = 1.72 t / min,

[0032] A design, manufacture and use method of a zinc pot bottom slag extraction device, comprising a liquid suction pipe 1, a zinc pot 2, a power pipe 6, and a slag hopper 3, wherein the liquid suction pipe 1 is installed inside the zinc pot 2, a slag hopper 3 is provided above the zinc pot 2, the top of the slag hopper 3 is movably connected to a hanger 5, the zinc pot 2 is provided with a power pipe 6, a counterweight 11 is fixedly connected to the bottom of the liquid suction pipe 1, a balance block 12 is installed at the tail of the liquid suction pipe 1, a hanging point 13 is provided above the liquid suction pipe 1, a zinc pump outlet 14 is provided on the right side of the liquid suction pipe 1, a filter device 15 is installed above the zinc pot 2, and a filter hopper 151 is provided inside the filter device 15. A filter screen 153 is installed inside the filter device 15, a safety counterweight 154 is provided on the right side of the filter device 15, a splash plate 152 is fixedly connected to the top of the right side of the filter device 15, a drain pipe 155 is provided on the left side of the filter device 15, a diffusion pipe 156 is installed below the drain pipe 155, a balance pipe 16 is installed at the tail of the suction pipe 1, a straight suction pipe 18 is provided at the bottom of the suction pipe 1, a pump suction port 17 is opened at the bottom of the straight suction pipe 18, a counterweight 11 is installed on the top of the straight suction pipe 18, a panel 171 is provided at the bottom of the pump suction port 17, and a flow channel 1 at the bottom of the panel 171 is provided. 73, a grid plate is provided below the enclosure 171, an eccentric suction pipe 19 is provided on the side of the straight suction pipe 18, an eccentric suction pipe support 191 is installed at the bottom of the eccentric suction pipe 19, a pot shell 21 is provided on the outside of the zinc pot 2, a refractory material 22 is filled inside the zinc pot 2, a first zinc pot area 24, a second zinc pot area 26, a third zinc pot area 23 and a fourth zinc pot area 25 are provided inside the zinc pot 2, a scale line 31 is provided on the surface of the slag hopper 3, the bottom of the slag hopper 3 is fixedly connected to the base 32, the inside of the zinc pot 2 is fixedly connected to the grate 4, the bottom of the grate 4 is provided with a furnace nose tip 41, the bottom of the hanger 5 A sling 51 is provided at the bottom of the power tube 6, an air intake hard tube 61 is provided at the top of the power tube 6, a fixing frame 63 is installed on the inner side of the power tube 6, zinc liquid 7 is provided inside the zinc pot 2, the top of the zinc liquid 7 is a zinc liquid level 71, a bottom slag pump 72 is provided at the bottom of the zinc liquid 7, the outside of the air intake hose 62 is fixedly connected to a traction rope 8, the traction rope 8 is set as a soft rope 81, a hook 83 is installed on the top of the liquid suction tube 1, and a steel cable 82 is fixedly connected to the inside of the hook 83, a safety baffle 9 is provided on the outside of the slag hopper 3, and a main operation room 10 is provided on the outside of the safety baffle 9.

[0033] The usage methods include the following:

[0034] S1, preparation of the bottom slag pump 72: first, dismantle the equipment that needs to be dismantled, ensure that there is no steel belt in the zinc pot 2 area, remove the furnace nose tip 41, and hoist the air knife and zinc pot 2 rollers. Then, protect the surrounding equipment and cover the equipment around the zinc pot 2 with ceramic fiber cloth; lay asbestos fiber blankets in the area between the main operation room 10 and the zinc pot 2 for heat insulation, and lay waste boards on the fiber blankets to place the slag bucket 3; install safety baffles 9 between the main operation room 10 and the zinc pot 2, close to the main operation room 10 and on both sides, prepare one straight-through type and one eccentric type liquid suction pipe 1, and cover the straight pipe section of the liquid suction pipe 1 with an asbestos fiber blanket. Reduce the solidification of zinc liquid 7 caused by heat dissipation; weld two thin steel chains with a length of more than 15m on the outlet pipe for fixing. The operator pulls and guides them to stabilize the precise positioning of the suction pipe 1 and the outlet. Then start arranging the slag hopper 3. Set up a 4*6 slag hopper 3 in the area between the main operation room 10 and the zinc pot 2. At the same time, it must be confirmed that there is no water in the slag hopper 3. The specific arrangement is based on the actual situation on site. Finally, use red and white ropes and warning signs to seal off the area in the bottom slag pump 72 area, and arrange special personnel to guide the operation; participate in the safety briefing of the personnel involved in the bottom slag pump 72 operation, and configure intercom communication equipment;

[0035] S2, personnel configuration: operator configuration: 1 person in charge of the site; driving personnel: 2 people; pipette 1 guidance and positioning: 2 people; pipette 1 nitrogen valve operation: 2 people; forklift driver: assist in operation as needed;

[0036] S3, start slag extraction: move the zinc pot 2 crane to the neutral position on the transmission side of the zinc pot 2, use a wire rope to lift the bottom slag extraction pump 72 that has been connected to the nitrogen hose, confirm that the equipment is basically in a balanced state, then slowly move the suction pipe 1 to the top of the zinc pot 2, use the temperature of the zinc pot 2 to preheat the pump, slowly put the pump into the zinc liquid 7, insert it until it can no longer be inserted, the pump suction port 17 is in contact with the bottom of the zinc pot 2, confirm that the zinc liquid 7 discharge port of the zinc liquid 7 pump is placed in the zinc hopper, slowly open the nitrogen supply manual valve, observe the discharge flow while adjusting the valve opening to avoid splashing of the zinc liquid 7, then use the crane to lift the bottom slag extraction pump 72 to change its position, and judge according to the position marked on the pot edge to confirm Ensure that the discharge port of the bottom slag pump 72 is located in another zinc hopper after the shift, and then slowly open the nitrogen manual valve to carry out the bottom slag pump 72 operation; the crane operator and the nitrogen manual valve operator must cooperate well, and then use the straight-through bottom slag pump 72 to complete the bottom slag pump 72 operation in the front area of ​​the grate 4, move it out of the working position, and then replace it with another set of eccentric bottom slag pump 72, repeat the above process, complete the bottom slag pump 72 operation in the rear area of ​​the grate 4, finally complete the bottom slag pump 72, completely close the nitrogen manual valve, and at the same time lift the bottom zinc pumping device away from the working position; move the small slag hopper 3 to the offline position, and then restore all on-site driving limits and guardrails and other temporary measures.

[0037] In step S2, the operating personnel are configured as follows: 1 person is in charge of the site, who observes the site situation and coordinates and directs on the platform above the furnace nose; 2 drivers, one is responsible for directing and the other is responsible for operating, who operate on the platform above the furnace nose; 2 people are responsible for guiding and positioning the pipette 1, 2 people on the WS side and 2 people on the DS side, who pull and guide the pipette 1; 2 people are responsible for operating the nitrogen valve of the pipette 1, who are responsible for opening and closing the nitrogen valve and regulating the flow; 2 forklift drivers cooperate to operate as needed.

[0038] In step S3, the zinc pot 2 is moved to the neutral position on the transmission side of the zinc pot 2, and the bottom slag pump 72 connected with the nitrogen hose is hoisted with a wire rope to confirm that the equipment is basically in a balanced state. Then, the suction pipe 1 is slowly moved to the top of the zinc pot 2 and stays above the zinc liquid 7 for about 5-10 minutes. The pump is preheated by the temperature of the zinc pot 2, and the pump is slowly placed in the zinc liquid 7 until it can no longer be inserted. The pump suction port 17 is in contact with the bottom of the zinc pot 2, with a height of about 50-200mm. Confirm that the zinc liquid 7 discharge port of the zinc liquid 7 pump is placed in the zinc hopper, and slowly open the nitrogen supply manual valve. While observing the discharge flow, adjust the valve opening to avoid zinc liquid 7. 7 splash, when the liquid level in the zinc hopper reaches nearly 1 / 2, gradually close the nitrogen hand valve, and then use the crane to lift the bottom slag pump 72 to change its position. At the same time, the moving distance each time is about 400mm. According to the position of the pot edge mark, make sure that the discharge port of the bottom slag pump 72 is located in the other zinc hopper after the shift, and then slowly open the nitrogen hand valve to operate the bottom slag pump 72; the crane operator and the nitrogen hand valve operator must cooperate well, and then use the straight-through bottom slag pump 72 to complete the bottom slag pump 72 operation in the front area of ​​the grate 4, and then lift the bottom slag pump 72 to a height of about 200mm and move it out of the working position. The stop time at each working position is 7-10 seconds. It takes about 1 minute to fill each bucket, then replace another set of eccentric bottom slag pump 72, repeat the above process, complete the bottom slag pump 72 operation in the rear area of ​​​​the grate 4, and finally complete the bottom slag pump 72. Close the nitrogen manual valve completely, and at the same time, move the bottom zinc pumping device away from the working position; move the small slag bucket 3 to the offline position, and then restore all temporary measures such as on-site driving limits and guardrails.

[0039] In summary, the present invention adopts nitrogen as the power source in an entire set, and the overall structural design is reasonable. It can provide a safe and efficient method of use when in use, and can achieve the purpose of improving the extraction efficiency of the bottom slag pump 72 in the zinc pot 2, thereby being able to better purify the internal zinc liquid 7, greatly improving the functionality during application, and its practicality is relatively strong.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for manufacturing a zinc pot bottom slag extraction device, characterized in that: The calculation method includes the pressure of the power source required for suction and the discharge flow rate of the zinc liquid during suction. The calculation formula for the pressure P required for the power source during suction is: The calculation formula of the zinc liquid discharge flow rate Q during the suction is: Wherein, P is the pressure bar required to provide the power source during suction, Q is the zinc liquid discharge flow rate t / min during suction, ρ is the zinc liquid density 103kg / m3, λ is the along-the-line resistance coefficient, ξ is the local resistance coefficient, D is the inner diameter of the suction pipe (mm), d is the inner diameter of the power pipe (mm), H is the length of the vertical section of the suction pipe (mm), L is the total length of the top and bottom transverse sections of the suction pipe (mm), h1 is the height from the bottom of the zinc pot to the liquid level (mm), h2 is the height from the position where the power pipe enters the suction pipe to the zinc pot (mm), h3 is the length of the discharge section of the suction pipe (mm), h4 is the vertical distance between the zinc pot liquid level and the discharge pipe outlet (mm), and g is the acceleration of gravity.

2. The method for manufacturing a zinc pot bottom slag extraction device according to claim 1, characterized in that: According to the above formula, the required power source pressure and the flow rate of zinc liquid discharge can be calculated, and the power source and the size of the slag bucket can be reasonably configured accordingly. The time it takes for the slag bucket to be fully emptied and the number of slag buckets required when the bottom slag extraction device is implemented can be obtained. The parameters H, L, h1, h2, h3, and h4 are determined according to the size of the zinc pot, the height and layout of the slag bucket, and the layout of the equipment in the zinc pot area under non-interference conditions. The parameter D / d≈4.

3. A zinc pot bottom slag extraction device manufactured by the manufacturing method of the zinc pot bottom slag extraction device according to claim 1, characterized in that: The invention comprises a liquid suction pipe (1), a zinc pot (2), a power pipe (6), and a slag bucket (3), wherein the liquid suction pipe (1) is installed inside the zinc pot (2), a slag bucket (3) is provided above the zinc pot (2), the top of the slag bucket (3) is movably connected to a sling (5), the power pipe (6) is provided inside the zinc pot (2), a counterweight (11) is fixedly connected to the bottom of the liquid suction pipe (1), a balance block (12) is installed at the tail of the liquid suction pipe (1), a hanging point (13) is provided above the liquid suction pipe (1), and the right side of the liquid suction pipe (1) is fixedly connected to the counterweight (11). A zinc pump outlet (14) is provided on the side of the zinc pot (2), a filter device (15) is installed above the zinc pot (2), a filter bucket (151) is provided inside the filter device (15), a filter screen (153) is installed inside the filter device (15), a safety counterweight (154) is provided on the right side of the filter device (15), a splash plate (152) is fixedly connected to the top of the right side of the filter device (15), a drain pipe (155) is provided on the left side of the filter device (15), and a diffusion pipe (156) is installed below the drain pipe (155).

4. A zinc pot bottom slag extraction device according to claim 3, characterized in that: A balance pipe (16) is installed at the tail of the liquid suction pipe (1), a straight-through suction pipe (18) is provided at the bottom of the liquid suction pipe (1), a pump suction port (17) is opened at the bottom of the straight-through suction pipe (18), a counterweight (11) is installed at the top of the straight-through suction pipe (18), a panel (171) is provided at the bottom of the pump suction port (17), a flow groove (173) at the bottom of the panel (171), a grid plate is provided below the panel (171), an extended eccentric suction pipe (19) is provided on the side of the straight-through suction pipe (18) according to the requirements of the suction point, and an eccentric suction pipe support (191) is installed at the bottom of the eccentric suction pipe (19).

5. The zinc pot bottom slag extraction device according to claim 3, characterized in that: The zinc pot (2) is provided with a pot shell (21) on the outside, the zinc pot (2) is filled with a refractory material (22) on the inside, and the inside of the zinc pot (2) is virtually divided into a first zinc pot area (24), a second zinc pot area (26), a third zinc pot area (23) and a fourth zinc pot area (25).

6. The zinc pot bottom slag extraction device according to claim 3, characterized in that: The surface of the hopper (3) is provided with scale lines (31), and the bottom of the hopper (3) is fixedly connected to a base (32).

7. The zinc pot bottom slag extraction device according to claim 3, characterized in that: The interior of the zinc pot (2) is fixedly connected to a grate (4), the bottom of the grate (4) is provided with a nose tip (41), and the bottom of the sling (5) is provided with a sling (51).

8. The zinc pot bottom slag extraction device according to claim 3, characterized in that: An air intake hard pipe (61) is provided at the bottom of the power tube (6), an air intake hose (62) is provided at the top of the power tube (6), a fixing frame (63) is installed on the inner side of the power tube (6), zinc liquid (7) is provided inside the zinc pot (2), the top of the zinc liquid (7) is a zinc liquid surface (71), a bottom slag pump (72) is provided at the bottom of the zinc liquid (7), the outside of the air intake hose (62) is fixedly connected to a traction rope (8), the traction rope (8) is set as a soft rope (81), a hook (83) is installed on the top of the liquid suction tube (1), and the inside of the hook (83) is fixedly connected to a steel cable (82).

9. The zinc pot bottom slag extraction device according to claim 3, characterized in that: A safety baffle (9) is provided outside the hopper (3), and a main operating room (10) is provided outside the safety baffle (9).

10. A method for using a zinc pot bottom slag extraction device, characterized in that: According to any one of claims 3 to 9, the zinc pot bottom slag extraction device comprises the following steps: S1, preparation of the bottom slag pump (72): first, dismantle the equipment that needs to be dismantled, ensure that there is no steel belt in the zinc pot (2) area, dismantle the furnace nose tip (41), and move the air knife and zinc pot (2) roller. Then, protect the surrounding equipment. Cover the surrounding equipment of the zinc pot (2) with ceramic fiber cloth; lay asbestos fiber blanket in the area between the main operation room (10) and the zinc pot (2) for heat insulation, and lay waste board on the fiber blanket to place the slag bucket (3); install safety baffles (9) between the main operation room (10) and the zinc pot (2) near the main operation room (10) and on both sides, prepare one straight-through type and one eccentric type liquid suction pipe (1), and suck the liquid. The straight section of the pipe (1) is covered with an asbestos fiber blanket to reduce the solidification of the zinc liquid (7) caused by heat dissipation; two thin steel chains with a length of more than 15m are welded on the outlet pipe for fixing, and the operator pulls and guides them to stabilize the precise positioning of the suction pipe (1) and the outlet. Then, the slag bucket (3) is arranged, and a 4*6 slag bucket (3) is set in the area between the main operation room (10) and the zinc pot (2). It is confirmed that there is no water in the slag bucket (3). Finally, the area of ​​the bottom slag pump (72) is closed with red and white ropes and warning signs, and a special person is arranged to guide; the personnel involved in the bottom slag pump (72) operation are given a safety briefing, and intercom communication equipment is configured; S2, personnel configuration: operator configuration: 1 person in charge of the site; driving personnel: 2 people; pipette (1) guidance and positioning: 2 people; pipette (1) nitrogen valve operation: 2 people; forklift driver: cooperate in operation as needed; S3, start slag extraction: move the zinc pot (2) crane to the neutral position on the transmission side of the zinc pot (2), use a wire rope to lift the bottom slag extraction pump (72) that has been connected to the nitrogen hose, confirm that the equipment is kept in a balanced state, then slowly move the suction pipe (1) to the top of the zinc pot (2), use the temperature of the zinc pot (2) to preheat the pump, slowly put the pump into the zinc liquid (7), insert it until it can no longer be inserted, and the pump suction port (17) is in contact with the bottom of the zinc pot (2), confirm that the zinc liquid (7) discharge port of the zinc liquid (7) pump is placed in the zinc hopper, slowly open the nitrogen gas supply manual valve, observe the discharge flow while adjusting the valve opening to avoid splashing of the zinc liquid (7), then use the crane to lift the bottom slag extraction pump (72) to change its position, and follow the pot edge mark Identify the position and make sure that the discharge port of the bottom slag pump (72) is located in the other zinc hopper after the displacement, and then slowly open the nitrogen hand valve to operate the bottom slag pump (72); the driving operator and the nitrogen hand valve operator cooperate well, use the straight-through bottom slag pump (72) to complete the bottom slag pump (72) operation in the front area of ​​the grate (4), move it out of the working position, and then replace it with another set of eccentric bottom slag pump (72), repeat the above process, complete the bottom slag pump (72) operation in the rear area of ​​the grate (4), and finally complete the bottom slag pump (72), completely close the nitrogen hand valve, and at the same time, lift the bottom zinc device away from the working position; move the small slag hopper (3) to the offline position, and restore all on-site driving limit and guardrail measures.

11. The method for using the zinc pot bottom slag extraction device according to claim 10, characterized in that: In step S2, the operating personnel are configured as follows: 1 person is in charge of the site, who observes the site situation and coordinates and directs on the platform above the furnace nose; 2 people are responsible for driving, one is responsible for directing, and the other is responsible for operating, who operate on the platform above the furnace nose; 2 people are responsible for guiding and positioning the pipette (1), 2 people on the WS side and 2 people on the DS side, who pull and guide the pipette (1); 2 people are responsible for operating the nitrogen valve of the pipette (1), who are responsible for opening and closing the nitrogen valve and regulating the flow rate; and 2 forklift drivers are responsible for cooperating in operations as needed.

12. The method for using the zinc pot bottom slag extraction device according to claim 10, characterized in that: In step S3, the zinc pot (2) crane is moved to the neutral position on the transmission side of the zinc pot (2), and the bottom slag pump (72) connected with the nitrogen hose is hoisted with a steel wire rope to confirm that the equipment is kept in a balanced state. Then, the liquid suction pipe (1) is slowly moved to the top of the zinc pot (2) and stays above the zinc liquid (7) for 5-10 minutes. The pump is preheated by the temperature of the zinc pot (2), and the pump is slowly placed in the zinc liquid (7) and inserted until it can no longer be inserted. The pump suction port (17) is in contact with the bottom of the zinc pot (2) at a height of 50-200mm. It is confirmed that the zinc liquid (7) discharge port of the zinc liquid (7) pump is placed in the zinc hopper. The nitrogen gas supply manual valve is slowly opened, and the valve opening is adjusted while observing the discharge flow to avoid splashing of the zinc liquid (7). When the zinc hopper liquid level reaches 1 / 2, the nitrogen manual valve is gradually closed. Then, the bottom slag pump (72) is lifted by the crane to change its position. At the same time, each movement is made by the width of a slag hopper opening according to the pot edge mark position. After the position is judged, ensure that the discharge port of the bottom slag pump (72) is located in the other zinc hopper after the displacement, and then slowly open the nitrogen hand valve to operate the bottom slag pump (72); the crane operator and the nitrogen hand valve operator cooperate well, and then use the straight-through bottom slag pump (72) to complete the bottom slag pump (72) operation in the front area of ​​the grate (4), and then lift the bottom slag pump (72) device 200mm high and move it out of the working position. Each work station stops 7-1 0 seconds is used to discharge the zinc liquid in the suction pipe. The filling time of each slag bucket is calculated according to 2 / 3 of the slag bucket. Then replace another set of eccentric bottom slag pumps (72). Repeat the above process to complete the bottom slag pump (72) operation in the rear area of ​​the grate (4). Finally, the bottom slag pump (72) is completed, the nitrogen hand valve is completely closed, and the bottom zinc pumping device is hoisted away from the working position; the small slag bucket (3) is moved to the offline position, and all on-site driving limit and guardrail measures are restored.

Images