CN201729865U - Zinc plating solution surface impurity cleaning device - Google Patents

Abstract

The utility model relates to a device for cleaning impurities on the surface of a galvanizing liquid, which is located on the upper part of a zinc pot. The cleaning device includes two sets of heat preservation devices located on the upper part of the zinc pot and capable of opening and closing to both ends, and an impurity scraper located on the heat preservation cover of the heat preservation device. The impurity scraper is located at the end of the heat preservation cover and extends to the inside of the zinc pot to contact with the zinc liquid. The two ends of the zinc pot are provided with impurity receiving devices. The utility model is equipped with an impurity scraper on the heat preservation cover, and the impurity scraper can clean up the impurities on the surface of the zinc liquid such as zinc oxide and zinc ash as the heat preservation cover is opened, eliminating the need for manual cleaning and saving labor , Improved labor efficiency. At the same time, the pin shaft of the impurity scraper is detachably installed on the heat preservation cover, and the height of the impurity scraper is adjustable, and can be adjusted according to the height of the liquid level at any time, so that impurities on the liquid surface can be better cleaned. Use this kind of cleaning device to clean impurities such as zinc oxide and zinc dust more uniformly, and the amount of formation is small, which can save costs.

Description

Impurity cleaning device on the surface of galvanizing liquid

technical field

The utility model relates to a cleaning device for impurities formed in the galvanizing process, in particular to a cleaning device for cleaning impurities on the surface of zinc liquid.

Background technique

In order to improve the service life and anti-corrosion ability of the steel structure of the iron tower, the galvanizing method is generally used at present, that is, the zinc ingot is melted under high temperature conditions, and the components are immersed in the zinc liquid, so that the surface of the galvanized part can be firmly attached. A layer of zinc can prevent the tower components from rusting and corrosion, and the anti-corrosion period is generally not less than 50 years.

The zinc liquid in the galvanizing pot uses coal to generate gas through the gas generator, and the gas is passed through the combustion system to provide heat for the zinc pot. The temperature of the zinc liquid can reach about 445°C, which is relatively high. Because the surface of the zinc liquid is in contact with air, and the air contains oxygen, a layer of zinc oxide will be produced; at the same time, during the galvanizing process, a layer of zinc dust will be produced because the galvanized parts are not cleaned before galvanizing; zinc oxide If it is not cleaned during the galvanizing process, many galvanizing defects will occur, such as missing plating, weak adhesion, zinc tip, zinc tumor, etc.

In the traditional galvanizing process, the method of cleaning zinc oxide and zinc ash is: the driver lifts the workpiece to the top of the galvanizing pot, and the galvanizers on both sides of the galvanizing pot use self-made rakes to remove the zinc oxide and zinc ash on the liquid surface. Zinc ash hits both ends. When the liquid surface is cleaned up, the driver drops the workpiece at a speed of 4m/min, and stops falling when the workpiece is completely immersed in the liquid surface 5-10cm; the zinc dipping time varies according to the thickness and structure of the plated piece Generally, the galvanizing time for thickness greater than 5mm is about 180-360s, and the galvanizing time for thickness less than 5mm is 60-180s; , the galvanizers on both sides of the zinc pot use a large rake from the top of the galvanized parts to beat the zinc oxide and zinc ash on the zinc liquid to both ends. After the zinc ash is cleaned up, the driver lifts the workpiece at a speed of 4m/min . At the same time, the galvanizing operators on both sides of the zinc pot use small rakes to clean the zinc oxide and zinc dust around the coated parts to prevent the zinc oxide and zinc dust from adhering to the coated parts, and lightly tap the coated parts with hand hooks , so as to shake off the remaining liquid on the plated parts; after the zinc is finished, the driver will lift the plated parts to a certain height, and finally move them to the cooling pool for cooling treatment.

Disadvantages of this cleaning method

1. Manual cleaning with a self-made rake will stir a large part of the zinc liquid into zinc oxide and zinc ash, which will form more zinc ash, which will be slower to clean and waste resources.

2. Manual cleaning requires 4 galvanizers to clean zinc oxide and zinc ash on both sides with a rake at the same time, which takes up a lot of people and time, and the work efficiency is low.

Utility model content

The purpose of the utility model is to provide a cleaning device capable of automatically cleaning impurities on the surface of the zinc liquid in view of the deficiencies of the prior art.

The technical solution of the utility model is: a device for cleaning impurities on the surface of the galvanizing liquid, which is located on the upper part of the zinc pot. The impurity scraper on the thermal insulation cover, the impurity scraper is located at the end of the thermal insulation cover and extends to the inside of the zinc pot to contact with the zinc liquid, and the two ends of the zinc pot are provided with impurity receiving devices.

Preferably: the width of the scraper is equivalent to the width of the zinc liquid surface, the scraper extends 1 cm below the liquid surface, and the scraper is installed on the heat preservation cover through a pin shaft, and the scraper can rotate around the pin shaft.

Preferably, the pin shaft is detachably installed on the heat preservation cover.

Preferably, the impurity receiving device includes an impurity receiving tank inside the zinc pot and an impurity receiving container outside the zinc pot, wherein the impurity receiving tank is connected to the impurity receiving container through a pin.

Preferably, the heat preservation device includes guide rails located on both sides of the zinc pot and a heat preservation cover that is arranged on the guide rails and can slide along the guide rails. Connecting to each other, a limiting device is arranged between the insulation covers of two adjacent layers.

Preferably, the limiting device is arranged at both ends of the heat preservation cover and is a protruding blocking piece.

Preferably, a hoist is provided on one side of the zinc pot, and the hoist is connected to the heat preservation cover through a steel wire rope and a pulley.

The beneficial effects of the utility model are: the utility model is equipped with an impurity scraper on the heat preservation cover, and the impurity scraper can clean up the impurities on the surface of the zinc liquid such as zinc oxide and zinc ash as the heat preservation cover is opened. Eliminate manual cleaning, save labor and improve labor efficiency. At the same time, the pin shaft of the impurity scraper is detachably installed on the heat preservation cover, and the height of the impurity scraper is adjustable, and can be adjusted according to the height of the liquid level at any time, so that impurities on the liquid surface can be better cleaned. Use this kind of cleaning device to clean impurities such as zinc oxide and zinc dust more uniformly, and the amount formed is small, which can save costs.

Description of drawings

Fig. 1 is the structural representation of the utility model

Figure 2 is a structural schematic diagram of the combination of the heat preservation cover and the impurity scraper of the present invention

Fig. 3 is a side view of the utility model Fig. 2

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing:

A device for cleaning impurities on the surface of the galvanizing liquid, located on the upper part of the zinc pot 3, said cleaning device includes two sets of heat preservation devices located on the upper part of the zinc pot 3 and capable of opening and closing to both ends and a heat preservation cover 1 located on the heat preservation device The impurity scraper 2, the impurity scraper 2 is located at the end of the heat preservation cover 1 and extends to the inside of the zinc pot 3 to contact with the zinc liquid, and the two ends of the zinc pot 3 are provided with impurity receiving devices. The width of the scraper 2 is equivalent to the width of the zinc liquid surface, the scraper 2 extends 1 cm below the liquid surface, and the scraper 2 is installed on the heat preservation cover 1 through the pin shaft 4, and the scraper 2 can be wound around the pin shaft 4 turn. The pin shaft 4 is detachably installed on the heat preservation cover body 1 . The impurity receiving device includes an impurity receiving tank 5 inside the zinc pot 3 and an impurity receiving container 6 outside the zinc pot 3 , wherein the impurity receiving tank 5 is connected to the impurity receiving container 6 through a pin 4 . The heat preservation device includes guide rails 7 located on both sides of the zinc pot 3 and a heat preservation cover 1 which is arranged on the guide rail 7 and can slide along the guide rail 7. The heat preservation cover 1 is provided with at least one layer, and the heat preservation cover 1 passes through the The pulley 8 is connected with the guide rail 7, and a limiting device is arranged between the heat preservation covers 1 of two adjacent layers. The limiting devices are arranged at both ends of the heat preservation cover 1 and are protruding blocking pieces. One side of the zinc pot 3 is provided with a hoist 9, and the hoist 9 is connected with the heat preservation cover body 1 through a steel wire rope 10 and a pulley 11.

During work, the galvanized heat preservation cover body 1 is controlled by the hoist 9 (the galvanized heat preservation cover body 1 is used to cover the zinc pot 3 when it is not galvanized, and plays the role of heat preservation), and the heat preservation cover body is dragged by the hoist machine 9 1. To realize the opening and closing of the heat preservation cover body 1, an impurity scraper 2 with a width equal to the liquid surface and a height of 1 cm below the liquid surface is provided at the end of the galvanized heat preservation cover body 1, so that the hoisting machine 9 on both sides is opened When the heat preservation cover 1 is in place, the scraper 2 can clean the impurities from the middle to both sides, that is, use the scraper 2 to scrape to both ends, and at the same time, the impurity receiving tanks 5 at both ends of the zinc pot 3 scrape the scraper 2 over Zinc oxide and zinc ash are put into it, and along with the opening of the last heat preservation cover body 1, the impurity receiving tank body 5 will leave the zinc liquid surface after collecting the zinc oxide and zinc ash, and enter the impurity holding container 6 for unified recovery, thus It can save manual cleaning, realize the purpose of saving time and labor, and speed up the galvanizing speed, thereby improving the production efficiency of galvanizing. When the impurity scraper 2 is in the middle of the zinc pot 3, it is vertically downward, and the zinc oxide and zinc ash are directed to both ends during work; when the impurities are scraped into the impurity receiving device, the scraper 2 can rotate upwards by 90° , that is, rotate to a horizontal position, so that when the galvanized heat preservation cover body 1 is closed, the zinc oxide and zinc ash will not be pushed back to the middle of the galvanized pot 2 again. Similarly, the impurity receiving tank body 5 is also rotatable, so that zinc oxide and zinc ash are poured into the impurity receiving container 6 .

Claims (7)

1. A device for cleaning impurities on the surface of the galvanizing liquid, located at the top of the zinc pot, characterized in that: the cleaning device includes two groups of heat preservation devices positioned at the top of the zinc pot that can be opened and closed to both ends and a heat preservation cover positioned at the heat preservation device The impurity scraper on the body, the impurity scraper is located at the end of the heat preservation cover and extends to the inside of the zinc pot to contact with the zinc liquid, and the two ends of the zinc pot are provided with impurity receiving devices. 2. The device for cleaning impurities on the surface of galvanizing liquid as claimed in claim 1, characterized in that: the width of the scraper is equivalent to the width of the liquid surface of the zinc liquid, the scraper extends 1 cm below the liquid surface, and the scraper passes through the pin The shaft is installed on the heat preservation cover body, and the scraper can rotate around the pin shaft. 3. The device for cleaning impurities on the surface of the galvanizing solution according to claim 2, wherein the pin shaft is detachably mounted on the heat preservation cover. 4. The device for cleaning impurities on the surface of the galvanizing solution according to claim 1, wherein the impurity receiving device includes an impurity receiving tank located inside the zinc pot and an impurity container located outside the zinc pot, wherein the impurities The receiving tank is connected with the impurity container through the pin shaft. 5. The device for cleaning impurities on the surface of the galvanizing solution according to any one of claims 1-4, characterized in that: the heat preservation device includes guide rails located on both sides of the zinc pot and a guide rail that is arranged on the guide rail and can slide along the guide rail. The heat preservation cover body, the heat preservation cover body is provided with at least one layer, the heat preservation cover body is connected to the guide rail through pulleys, and a limiting device is arranged between the heat preservation cover bodies of two adjacent layers. 6. The device for cleaning impurities on the galvanized liquid surface according to claim 5, characterized in that: said limiting devices are arranged at both ends of the heat preservation cover and are protruding blocking pieces. 7. The device for cleaning impurities on the surface of the galvanizing solution according to claim 5, wherein a hoist is provided on one side of the zinc pot, and the hoist is connected to the heat preservation cover through a steel wire rope and a pulley.

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