CN115612959B - Hot melt slagging-off platform of belted steel galvanizing kettle - Google Patents

Abstract

The invention discloses a hot-melting deslagging platform of a strip steel galvanizing kettle, which comprises an artificial platform, a thermal power box, a wheel set bracket and a wind wheel set, wherein the artificial platform is connected to an opening at the top of the galvanizing kettle in a sliding manner through a guide rail, and the thermal power box is fixedly arranged at the bottom of the artificial platform; the bottom of the heat power box is fixedly provided with a wheel set bracket, and the wheel set bracket is rotatably connected with a plurality of wind wheel sets for stirring the liquid level of the galvanizing solution in the galvanizing pot; the heat power box is internally provided with a fan and a resistance heating box which provide asynchronous rotation power for a plurality of wind wheel sets, and the fan and the resistance heating box blow hot melting wind power to the liquid level of the zinc solution in the galvanizing kettle through a wheel set bracket and the wind wheel sets. This hot melt slagging-off platform realizes the concentrated reheating function of zincilate with the one-way mode of driving the cooperation hot melt, has effectively improved the utilization ratio of zincilate, has reduced artifical or the frequency of equipment slagging-off, has promoted belted steel hot-galvanize's production efficiency and low cost greatly.

Description

A hot-melt slag removal platform for strip steel galvanized pot

technical field

The invention relates to the technical field of hot-dip galvanizing, in particular to a hot-melt slag removal platform for a strip steel galvanizing pot.

Background technique

Hot-dip galvanizing is also called hot-dip galvanizing and hot-dip galvanizing. It is to roll and immerse the strip steel in a zinc solution melted at about 500 ° C, so that the surface of the strip steel is attached with a zinc layer, so as to achieve the purpose of anti-corrosion. During the hot-dip galvanizing process , the addition of Al in the zinc solution, the dissolution of Fe in the strip steel and the inhomogeneity of the temperature of the zinc solution will inevitably produce zinc dross. Therefore, in order to ensure product quality, the zinc dross floating on the surface of the zinc solution must be removed in time; and The zinc slag taken from the right galvanizing pot cannot be used here after cooling, and can only be sold to the recycler at a low price, and the recycler can extract more than 90% of the zinc from the zinc slag after simple purification treatment, and then It is sold back to strip steel mills for hot-dip galvanizing, which leads to low utilization rate and high cost of zinc ingots.

At present, the zinc slag suspended on the liquid surface of the galvanizing pot can only be removed by equipment or manually. If relying on manual labor, there are problems of low efficiency and easy burns. Equipment and zinc slag have not been effectively reused.

Therefore, how to effectively utilize the zinc dross suspended on the liquid surface of the galvanizing pot, that is, reduce the number of removals, improve the utilization rate of the zinc dross, reduce the risk of personnel scalding and the cost of production line parking, has become a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a hot-melt slag removal platform for strip steel galvanizing pots. The hot-melt slag removal platform realizes the concentration of zinc dross in a way of one-way driving and hot melting The reheating function effectively improves the utilization rate of zinc slag, reduces the frequency of manual or equipment slag removal, and greatly improves the production efficiency of strip hot-dip galvanizing with low cost.

A hot-melt slag removal platform for a strip steel galvanized pot. The hot-melt slag removal platform includes an artificial platform, a thermal power box, a wheel bracket and a wind wheel group, wherein the artificial platform is slidably connected to the top opening of the galvanized pot through guide rails , the bottom of the artificial platform is fixed with a thermal power box; the bottom of the thermal power box is fixed with a wheel bracket, and the wheel bracket is rotatably connected to a plurality of wind turbines that stir the liquid surface of the galvanizing solution inside the galvanizing pot; inside the thermal power box There are fans and resistance heating boxes that provide asynchronous rotation power for multiple wind wheel groups, and the fans and resistance heating boxes blow hot melt wind to the liquid surface of the zinc solution in the galvanizing pot through the wheel group bracket and the wind wheel group.

Preferably, the wheel set bracket includes opposite pull fixing rods and two hollow elbows fixed on the bottom of the thermal power box; the vertical section of the hollow elbow is fixed to penetrate the thermal power box and communicate with the exhaust end of the resistance heating box One end of the horizontal section of the hollow elbow is closed and the other end is open, and the middle part of the horizontal section of the hollow elbow is coaxially fixed and penetrated by a pair of tension fixing rods.

Preferably, the wind wheel set includes a plurality of coaxially spaced wind wheel pipes and connecting pipes, wherein the inner chambers of the wind wheel pipes and the connecting pipes are connected to the exhaust end of the resistance heating box through hollow bends, and the wind wheel pipes and the connecting pipes The shaft centers of the connecting pipes are all penetrated to connect with the opposite pull fixing rods; both ends of the connecting pipes are rotated to connect with the wind wheel pipes.

Preferably, the two ends of the wind wheel tube are radially limited and coaxially rotated to insert hollow elbows or connecting pipes. The wind wheel tube includes a tube body, an outer stirring blade, an inner wind blade and a blade bearing; the outer part of the tube body A plurality of outer stirring blades uniformly distributed in the circumferential direction and extending radially below the liquid surface of the galvanizing solution are fixed, and a plurality of inner agitating blades uniformly distributed in the circumferential direction and radially rotating to cover the cross-section of the inner cavity of the pipe body are fixed coaxially on the inner wall of the middle part of the pipe body. blades, and the pipe wall of the pipe body is provided with a plurality of exhaust long holes evenly distributed in the circumferential direction; the roots of the inner wind blades are respectively fixed on the outer ring seat of the blade bearing, and the inner ring seat of the blade bearing On the pull fixing rod.

Preferably, both ends of the pipe body are coaxially embedded with end bearings, and the end bearings are rotatably supported on the open end of the hollow elbow or one end of the connecting pipe.

Preferably, the air exhaust long hole is obliquely opened on the pipe body, and the inclination and bending radian of the air exhaust long hole are adapted to the intersection line between the outer stirring blade and the pipe body.

Advantage and technical effect of the present invention are:

The hot-melt slag removal platform for a strip steel galvanized pot of the present invention provides sliding support for the main body of the slag removal platform through an artificial platform slidably connected on the galvanized pot, so that personnel can reach the maintenance position above the galvanized pot without Stop the production line and move the galvanizing pot as a whole for maintenance; output high-temperature pressurized gas through the thermal power box at the bottom of the artificial platform, in which the cables of the fan and resistance heating box are laid inside the thermal power box to prevent the cables from being exposed to high temperature for a long time The problem of electric leakage due to damage due to roasting; through the wheel group bracket, an asynchronous rotating connection through which hot air can pass through is provided for the wind wheel group, so as to ensure that the rotation operation of multiple wind wheel groups is relatively independent, that is, compared to rotating and connecting between two hollow elbows As far as the structure of a whole wind turbine is concerned, the asynchronous rotation and connection of multiple wind turbines can effectively reduce the energy consumption of the fan.

A hot-melt slag removal platform for a strip steel galvanized pot according to the present invention, the wheel group bracket is used to rotate and connect the wind wheel group under the thermal power box, and the cavity inside the wheel group bracket is used for the thermal power box to wind the wind wheel The high-temperature and pressurized gas transmission of the group, and the double-tensioned fixing rods penetrated and connected in the last wheel group bracket are used to tighten and fix multiple wind wheel groups in sequence in the axial direction, so as to ensure the coaxiality between the wind wheel groups and avoid single After contacting the zinc slag, the wind turbine group is subjected to radial force and rotates eccentrically with other wind turbine groups.

A hot-melt slag removal platform for a strip steel galvanizing pot according to the present invention, the wind wheel group is an executive part for stirring and heating the galvanizing solution, in which the inner wind-driven blades are blown and rotated by high-temperature pressurized gas, and then serve as pipes. The body and the outer stirring blade provide the rotating power; and the blade bearing rotating sleeve at the axis of the inner wind blade is fixed on the opposite side to ensure the coaxiality of the pipe body when rotating; finally, the inner cavity of the pipe passes through the exhaust long hole The high-temperature pressurized gas is output to the liquid surface of the galvanizing solution at intervals and obliquely; and then the outer stirring blade cooperates with the high-temperature pressurized gas to realize the gas temperature increase and drive away the concentrated function of the suspended zinc slag.

Description of drawings

Fig. 1 is the installation position schematic diagram of the present invention;

Fig. 2 is a sectional view of the present invention;

Fig. 3 is a partial enlarged view of place A in Fig. 2;

In the figure: 1- hot-melt slag removal platform; 2- galvanized pot; 3- artificial platform; 4- wheel bracket; 5- thermal power box; Resistance heating box; 10-hollow elbow; 11-paired fixed rod; 12-outer stirring blade; 13-pipe body; 14-inner wind blade; 15-blade bearing; tube; 18-face bearing.

Detailed ways

In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings. It should be noted that this embodiment is descriptive, not restrictive, and cannot thereby limit the protection scope of the present invention.

A hot-melt slag removal platform for a strip steel galvanized pot. The hot-melt slag removal platform 1 includes an artificial platform 3, a thermal power box 5, a wheel set bracket 4, and a wind wheel set 6, wherein the artificial platform is slidably connected to the galvanized plate through a guide rail 7. At the top opening of the zinc pot 2, a thermal power box is fixed at the bottom of the artificial platform; a wheel bracket is fixed at the bottom of the thermal power box, and the wheel bracket is rotated and connected to a plurality of wind turbines that stir the liquid surface of the galvanizing solution inside the galvanizing pot. wheel set; the thermal power box is provided with a fan 8 and a resistance heating box 9 that provide asynchronous rotation power for multiple wind wheel sets, and the fan and the resistance heating box pass through the wheel set support and the wind wheel set to the zinc solution in the galvanizing pot Blowing hot melt wind on the face.

Preferably, the wheel set bracket includes opposite pull fixing rods 11 and two hollow elbows 10 fixed at the bottom of the thermal power box; At the air end, one end of the horizontal section of the hollow elbow is closed and the other end is open, and the middle part of the horizontal section of the hollow elbow is coaxially fixed and penetrated with a pair of pull fixing rods.

Preferably, the wind wheel group includes a plurality of coaxially spaced wind wheel pipes and connecting pipes 17, wherein the inner chambers of the wind wheel pipes and the connecting pipes are all connected to the exhaust end of the resistance heating box through a hollow elbow, and the wind wheel pipes The axis of the connecting pipe is penetrated and connected to the opposite pull fixing rod; both ends of the connecting pipe are rotated to connect with the wind wheel pipe.

Preferably, the two ends of the wind wheel tube are radially limited and coaxially rotated to insert hollow elbows or connecting pipes. The wind wheel tube includes a tube body 13, an outer stirring blade 12, an inner wind moving blade 14 and a blade bearing 15; The outside of the pipe body is fixed with a plurality of outer stirring blades that are uniformly distributed in the circumferential direction and extend radially below the liquid surface of the galvanizing solution. On the inner wall of the middle part of the pipe body, a plurality of uniformly distributed circumferentially and radially rotated to cover the inner cavity section of the pipe body are coaxially fixed. The inner wind-driven blades, and the tube wall of the pipe body are provided with a plurality of exhaust long holes 16 evenly distributed in the circumferential direction; the roots of the inner wind-driven blades are respectively fixed on the outer ring seat of the blade bearing, and the inner The ring seat is coaxially sleeved on the pull fixing rod.

Preferably, both ends of the pipe body are coaxially embedded with end face bearings 18, and the end face bearings are rotatably supported on the open end of the hollow elbow or one end of the connecting pipe.

Preferably, the air exhaust long hole is obliquely opened on the pipe body, and the inclination and bending radian of the air exhaust long hole are adapted to the intersection line between the outer stirring blade and the pipe body.

In addition, preferably in the present invention, both the blower fan and the resistance heating box adopt mature products in the prior art, and the connection mode for the air supply of the resistance heating box by the fan adopts the mature technical means in the prior art. During galvanizing, the resistance heating box can be replaced by a heat gun.

In addition, preferably in the present invention, both the wheel set support and the wind wheel set are made of steel materials that can withstand high temperatures above 500°C.

In order to illustrate the specific implementation of the present invention more clearly, several examples are provided below:

Example 1:

A hot-melt slag removal platform for a strip steel galvanized pot according to the present invention adopts a hollow elbow for air intake and the other hollow elbow for return air to provide circulating high-temperature wind pressure for the wind turbine group, and two of the hollow elbows The vertical section of the pipe is respectively connected with the air inlet end of the fan and the air exhaust end of the resistance heating box.

In this way, the wind drives the wind turbines to rotate, since the air pressure is input from one end of the wind turbines connected in series and output from the other end. The relative speed of the group is relatively slow; in addition, the high-temperature gas discharged from the long exhaust hole will reduce the rotational power of the wind turbine group, especially the wind rotor group closest to the exhaust end, the wind pressure driving its rotation passes through the front multi-stage wind wheel Group consumption and long exhaust holes exhaust air, so its rotational power is poor. At this time, it should be ensured that the output air pressure of the fan is applied to the rotational power of the wind blades in the last stage of the wind turbine group, which is greater than the galvanized when the artificial platform moves slowly. The liquid surface of the solution is enough to apply the resistance to the rotation of the outer stirring blade.

It should be noted that at this time, the outer stirring blades and the inner wind blades of the multiple wind turbines are facing the same direction, thereby ensuring that the rotation directions of the multiple wind turbines are consistent, that is, when the artificial platform slides on the top of the galvanized pot, it always faces Stir in front of the sliding direction of the artificial platform to stir (that is, provoke) the liquid level of the galvanizing solution.

Example 2:

A hot-melt slag removal platform for a strip steel galvanized pot of the present invention adopts two hollow elbows to simultaneously enter the wind to provide bidirectional output high-temperature wind pressure for the wind turbine group, and the vertical sections of the two hollow elbows Both are connected to the exhaust end of the resistance heating box.

In this way, when the wind drives the wind turbines to rotate, since the air pressure is simultaneously input from both ends of multiple wind turbines connected in series, the advantage of this operation mode is that the efficiency of slag removal is higher, and the effect of stirring and melting is better. It is suitable for When there is less zinc slag, the relative speed of the wind turbine is relatively fast.

It should be noted that at this time, the outer stirring blades and the inner wind moving blades of the wind turbines located at both ends of the mid-span dividing line of the artificial platform are facing opposite directions, because the wind directions at the two ends are different, but it is still necessary to ensure the rotation direction of multiple wind turbines Consistent, always stir and stir (that is, provoke) the liquid surface of the galvanizing solution toward the front of the sliding direction of the artificial platform.

Finally, it should be noted that the present invention can carry out hot-melt and slag removal of zinc slag without stopping the production line. During the operation, the artificial platform will slide back and forth above the galvanizing pot, heating and stirring the galvanizing solution continuously The liquid level of the galvanized pot is convenient for driving away and concentrating the condensed zinc slag and reheating to become a liquid state. During this process, the liquid surface temperature of the galvanizing pot is always guaranteed to be higher than the melting temperature of zinc, which is 419.53°C.

Finally, the unrecited parts of the present invention all adopt mature products and mature technical means in the prior art.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present invention.

Claims (3)

1. A hot-melt slag removal platform for a strip steel galvanized pot, characterized in that: the hot-melt slag removal platform includes an artificial platform, a thermal power box, a wheel group support and a wind wheel group, wherein the artificial platform is slidably connected by a guide rail At the top opening of the galvanizing pot, a thermal power box is fixed at the bottom of the artificial platform; a wheel bracket is fixed at the bottom of the thermal power box, and a plurality of agitating galvanizing solutions inside the galvanizing pot are connected to the wheel bracket by rotation. The wind rotor group on the surface; the thermal power box is equipped with a fan and a resistance heating box that provide asynchronous rotation power for multiple wind rotor groups, and the fan and resistance heating box are fed into the galvanized pot through the wheel group bracket and the wind rotor group Zinc solution surface blowing hot melt wind; The wind wheel set includes a plurality of coaxial and spaced wind wheel pipes and connecting pipes, wherein the inner chambers of the wind wheel pipes and the connecting pipes are connected to the exhaust end of the resistance heating box through hollow bends, and the wind wheel pipes are connected to the The axis of the tube is connected to the opposite pull fixing rod; both ends of the connecting tube are rotated to connect with the wind wheel tube; The two ends of the wind wheel pipe are radially limited and coaxially rotated to insert hollow elbows or connecting pipes. The wind wheel pipe includes a pipe body, an outer stirring blade, an inner wind moving blade and a blade bearing; The outside is fixed with a plurality of outer stirring blades which are evenly distributed in the circumferential direction and extend radially below the liquid surface of the galvanizing solution. On the inner wall of the middle part of the pipe body, a plurality of inner air blowers which are uniformly distributed in the circumferential direction and rotate radially to cover the section of the inner cavity of the pipe are coaxially fixed. and the pipe wall of the pipe body is provided with a plurality of exhaust long holes evenly distributed in the circumferential direction; the roots of the inner wind moving blades are respectively fixed on the outer ring seat of the blade bearing, and the inner ring seat of the blade bearing The coaxial sleeve is mounted on the pull fixing rod; The wheel set bracket includes opposite pull fixing rods and two hollow elbows fixed at the bottom of the thermal power box; the vertical section of the hollow elbow is fixed to penetrate the thermal power box and communicate with the exhaust air of the resistance heating box One end of the horizontal section of the hollow elbow is closed and the other end is open, and the middle part of the horizontal section of the hollow elbow is coaxially fixed and penetrated by a pair of pull fixing rods; When one hollow elbow enters the wind and the other hollow elbow returns the wind, when the wind turbines are provided with circulating high-temperature wind pressure, the vertical sections of the two hollow elbows are respectively connected to the air inlet end of the fan and the resistance heating box At the exhaust end, at this time, the output air pressure of the fan is applied to the rotational force of the wind-driven blades in the last stage of the wind turbine group, which is greater than the resistance to the rotation of the outer stirring blades exerted by the liquid level of the galvanizing solution when the artificial platform moves slowly; in the artificial platform When sliding on the top of the galvanizing pot, make the rotation direction of multiple wind turbines consistent, and challenge the liquid level of the galvanizing solution to the front of the sliding direction of the artificial platform; When the two hollow elbows enter the air at the same time to provide two-way output high-temperature wind pressure for the wind turbine, the vertical sections of the two hollow elbows are connected to the exhaust end of the resistance heating box. The outer stirring blades and the inner wind moving blades of the wind turbines at both ends of the middle dividing line are oriented in opposite directions. When the artificial platform slides on the top of the galvanized pot, the rotation directions of the multiple wind turbines are consistent and move forward in the sliding direction of the artificial platform. Raise the liquid level of the galvanizing solution. 2. A hot-melt slag removal platform for a strip steel galvanized pot according to claim 1, characterized in that: both ends of the pipe body are coaxially embedded with end bearings, and the end bearings are rotatably supported on On the open end of a hollow elbow or on one end of a connecting pipe. 3. A hot-melt slag removal platform for a strip steel galvanized pot according to claim 1, characterized in that: the long exhaust hole is obliquely opened on the pipe body, and the inclination and curvature of the long exhaust hole The curvature is adapted to the intersection line of the outer stirring blade and the pipe body.

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