A water and energy saving cleaning device for aluminum material in aluminum processing color coating production line

Abstract

The utility model discloses a kind of water-saving and energy-saving cleaning devices for aluminium processing color-coated production line aluminium material, including cleaning tank, the cleaning tank is divided into caustic cleaning tank and water washing tank sequentially arranged along track moving mode, cleaning tank includes liquid storage tank, the side of the liquid storage tank is equipped with deionized water pipeline, the bottom of liquid storage tank is equipped with water outlet pipe, the water outlet of water outlet pipe is equipped with tank liquid pump, the liquid outlet of tank liquid pump is equipped with conveying pipe, the end of conveying pipe close to tank liquid pump is equipped with heat exchanger group. The water-saving and energy-saving cleaning device for aluminium processing color-coated production line aluminium material, on the basis of not increasing power equipment, tank liquid of water washing tank is supplemented to caustic cleaning tank, can reduce water washing tank tank liquid overflow waste water discharge amount, while caustic cleaning tank reduces the supplement of deionized water due to water washing tank supplement water amount, and the temperature of supplement tank liquid is higher, also can reduce caustic tank tank liquid heating use heat, to reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of aluminum processing technology, specifically to a water-saving and energy-efficient cleaning device for aluminum materials in an aluminum color coating production line. Background Technology

[0002] Before color coating, aluminum strips on aluminum processing production lines need to be cleaned. The cleaning process generally consists of two parts: alkaline washing and water washing. After passing through a continuous alkaline washing tank to remove surface aluminum powder and oil, the aluminum strip enters a multi-stage water washing tank to remove the alkaline solution from the surface. In actual production, generally three sets of alkaline washing tanks and six sets of water washing tanks are set up, and the strip is cleaned at a solution temperature of 50℃-60℃.

[0003] The alkali tank maintains its concentration by setting the replenishment amounts of water and alkali. Some contaminants are then discharged through overflow, stabilizing the concentration. Similarly, the water tank is replenished at a set amount, with excess water overflowing and carrying some contaminants away, stabilizing its conductivity. This process involves replenishment and overflow / drainage of each alkali and water tank, resulting in significant water and waste volume for the entire production line. Furthermore, heating the replenished deionized water to the production temperature of 50-60°C in winter (approximately 15°C) consumes considerable heat, increasing costs. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a water-saving and energy-efficient cleaning device for aluminum materials in aluminum processing and color coating production lines. Without adding power equipment, the device replenishes the water washing tank solution to the alkaline washing tank, reducing the amount of wastewater overflowing from the water washing tank. At the same time, the alkaline washing tank requires less deionized water due to the replenishment of water from the water washing tank, and the higher temperature of the replenished solution also reduces the heat used for heating the alkaline tank solution, thereby reducing production costs and effectively solving the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-saving and energy-efficient cleaning device for aluminum materials in an aluminum processing color coating production line, comprising a cleaning tank, wherein the cleaning tank is divided into an alkaline washing tank and a water washing tank arranged sequentially along a conveyor belt, the cleaning tank including a storage tank, a deionized water pipe provided on the side of the storage tank, a water outlet pipe provided at the bottom of the storage tank, a tank liquid pump provided at the outlet of the water outlet pipe, a conveying pipe provided at the outlet of the tank liquid pump, a heat exchanger assembly provided at one end of the conveying pipe near the tank liquid pump, and a nozzle capable of cleaning the upper and lower surfaces of the aluminum strip provided at the outlet of the conveying pipe, a connecting pipe connected to the storage tank of the alkaline washing tank on the conveying pipe of the water washing tank, and an alkaline liquid pipe provided on the side of the storage tank of the alkaline washing tank.

[0006] As a preferred technical solution of this utility model, the upper side of the liquid storage tank is provided with an overflow pipe, the bottom of the liquid storage tank is provided with a drain pipe, and the outlet of the drain pipe is connected to the side of the outlet of the overflow pipe, and a sewage tank is arranged below the outlet of the overflow pipe.

[0007] As a preferred embodiment of this utility model, the vent pipe is equipped with a vent valve.

[0008] As a preferred embodiment of this utility model, the heat exchanger assembly is provided with a heat source for heating it.

[0009] As a preferred embodiment of this utility model, butterfly valves are provided on both the side of the water outlet pipe near the tank liquid pump and the side of the delivery pipe near the tank liquid pump.

[0010] As a preferred technical solution of this utility model, a straight pipe is provided on the side of the conveying pipe near the tank liquid pump, and the heat exchanger group is connected in parallel with the straight pipe. Butterfly valves are provided at the corresponding positions on the front and rear sides of the conveying pipe and the heat exchanger group.

[0011] As a preferred embodiment of this utility model, a butterfly valve is provided on the straight pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model provides a water-saving and energy-efficient cleaning device for aluminum materials in an aluminum processing and color coating production line. Without adding power equipment, it replenishes the water washing tank solution to the alkaline washing tank, which reduces the amount of wastewater overflowing from the water washing tank. At the same time, the alkaline washing tank requires less deionized water due to the replenishment of water from the water washing tank. Furthermore, the higher temperature of the replenished solution reduces the heat required for heating the alkaline washing tank solution, thereby lowering production costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the water washing tank part in this utility model;

[0016] Figure 3 This is a schematic diagram of the alkaline washing tank part of this utility model.

[0017] In the diagram: 1. Storage tank, 2. Deionized water pipe, 3. Outlet pipe, 31. Tank pump, 32. Heat exchanger assembly, 33. Heat source, 34. Straight pipe, 4. Delivery pipe, 41. Nozzle, 5. Overflow pipe, 6. Drain pipe, 7. Sewage tank, 8. Connecting pipe, 9. Alkali pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a water-saving and energy-efficient cleaning device for aluminum materials in an aluminum processing color coating production line, comprising a cleaning tank, which is divided into an alkaline washing tank and a water washing tank arranged sequentially along a conveyor belt. The cleaning tank includes a storage tank 1, a deionized water pipe 2 on the side of the storage tank 1, and a water outlet pipe 3 at the bottom of the storage tank 1. A tank liquid pump 31 is installed at the outlet of the water outlet pipe 3, and a conveying pipe 4 is installed at the outlet of the tank liquid pump 31. A heat exchanger assembly 32 is installed at one end of the conveying pipe 4 near the tank liquid pump 31, and the outlet of the conveying pipe 4... The water inlet is equipped with nozzles 41 that can clean the upper and lower surfaces of the aluminum strip. The conveying pipe 4 of the water washing tank is equipped with a connecting pipe 8 that connects to the storage tank 1 of the alkaline washing tank. The storage tank 1 of the alkaline washing tank is equipped with an alkaline pipe 9 on its side. When the water washing tank is conveying the tank liquid, part of the water washing tank liquid enters the storage tank 1 of the alkaline washing tank, which can reduce the overflow wastewater discharge of the water washing tank liquid. The alkaline washing tank reduces the need for deionized water replenishment due to the water washing tank replenishment volume. Moreover, since the replenishment tank liquid temperature is higher, the heat used for heating the alkaline tank liquid is reduced.

[0020] Furthermore, an overflow pipe 5 is provided on the upper side of the storage tank 1, and an emptying pipe 6 is provided at the bottom of the storage tank 1. The outlet of the emptying pipe 6 is connected to the side of the outlet of the overflow pipe 5, and a sewage tank 7 is arranged below the outlet of the overflow pipe 5. An emptying valve is provided on the emptying pipe 6. Adding tank liquid will cause the tank liquid to increase. The excess tank liquid will be discharged into the sewage tank 7 through the overflow pipe 5. When cleaning the storage tank 1, the emptying valve can be opened to empty the storage tank 1.

[0021] Furthermore, the heat exchanger assembly 32 is provided with a heat source 33 for heating it. The heat source can be an electric heater, which heats the tank liquid flowing through the heat exchanger assembly 32.

[0022] Furthermore, butterfly valves are provided on both the side of the water outlet pipe 3 near the tank liquid pump 31 and the side of the delivery pipe 4 near the tank liquid pump 31.

[0023] Furthermore, a straight pipe 34 is provided on the side of the delivery pipe 4 near the tank liquid pump 31, and the heat exchanger group 32 is connected in parallel with the straight pipe 34. Butterfly valves are provided on the corresponding parts of the front and rear sides of the delivery pipe 4 and the heat exchanger group 32, and a butterfly valve is provided on the straight pipe 34. Under normal production conditions, the tank liquid delivered by the tank liquid pump 31 is heated by the heat exchanger group 32 and then delivered through the delivery pipe 4. When the temperature of the tank liquid inside the storage tank 1 reaches the standard and does not need to be heated, the butterfly valves on both sides of the heat exchanger group 32 are closed and the butterfly valve on the straight pipe 34 is opened, so that the tank liquid can be delivered through the straight pipe 34 and the delivery pipe 4 without heating, thus saving energy.

[0024] The tank pump 31 used in this utility model is a commonly used centrifugal pump in the prior art. Its working method and circuit structure are well known technologies and will not be described in detail here.

[0025] When using:

[0026] Three sets of alkaline washing tanks and six sets of water washing tanks are arranged along the aluminum belt conveying direction. The aluminum belt undergoes three alkaline washings and six water washings during the conveying process.

[0027] During normal production, the alkaline washing tank is replenished with deionized water and alkali stock solution in a regular and quantitative manner according to the ratio, so that the alkaline tank solution is always kept within a relatively stable concentration. As the temperature of the tank solution drops due to the cleaning of the strip and the replenishment of the tank solution, it is pumped by the tank solution pump 31 to the heat exchanger group 32 for heating. After heating, the tank solution enters the nozzle 41 to rinse the strip, thus entering the circulation process.

[0028] Adding tank liquid will cause the tank liquid to increase, and the excess tank liquid will be discharged into the sewage tank 7 through the overflow pipe 5;

[0029] To reduce resource waste, when the water washing tank is transporting the tank liquid, part of the water washing tank liquid enters the storage tank 1 corresponding to the alkaline washing tank through the conveying pipe 4. This can reduce the overflow wastewater discharge of the water washing tank liquid. The alkaline washing tank reduces the amount of deionized water replenished due to the water washing tank replenishment. Moreover, since the temperature of the replenished tank liquid is higher, the heat used for heating the alkaline tank liquid is reduced.

[0030] This invention, without adding power equipment, replenishes the water washing tank solution to the alkaline washing tank, which reduces the amount of wastewater overflowing from the water washing tank. At the same time, the alkaline washing tank requires less deionized water due to the replenishment of water from the water washing tank. Furthermore, the higher temperature of the replenished solution reduces the heat required for heating the alkaline washing tank solution, thereby lowering production costs.

[0031] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water and energy saving cleaning device for aluminum materials in a color coating production line of aluminum processing, comprising a cleaning tank, characterized in that: The cleaning tank is divided into an alkaline washing tank and a water washing tank arranged sequentially along the track. The cleaning tank includes a storage tank (1). A deionized water pipe (2) is provided on the side of the storage tank (1). A water outlet pipe (3) is provided at the bottom of the storage tank (1). A tank liquid pump (31) is provided at the outlet of the water outlet pipe (3). A delivery pipe (4) is provided at the outlet of the tank liquid pump (31). A heat exchanger group (32) is provided at one end of the delivery pipe (4) near the tank liquid pump (31). A nozzle (41) is provided at the outlet of the delivery pipe (4) to clean the upper and lower surfaces of the aluminum strip. A connecting pipe (8) is provided on the delivery pipe (4) of the water washing tank to communicate with the storage tank (1) of the alkaline washing tank. An alkaline liquid pipe (9) is provided on the side of the storage tank (1) of the alkaline washing tank.

2. The water-saving and energy-saving cleaning device for aluminum materials in an aluminum processing color coating production line according to claim 1, characterized in that: The upper side of the storage tank (1) is provided with an overflow pipe (5), the bottom of the storage tank (1) is provided with an empty pipe (6), and the outlet of the empty pipe (6) is connected to the side of the outlet of the overflow pipe (5), and a sewage tank (7) is arranged below the outlet of the overflow pipe (5).

3. The water-saving and energy-saving cleaning device for aluminum materials in an aluminum processing color coating production line according to claim 2, characterized in that: The vent pipe (6) is equipped with a vent valve.

4. The water-saving and energy-saving cleaning device for aluminum materials in an aluminum processing color coating production line according to claim 1, characterized in that: The heat exchanger assembly (32) is provided with a heat source (33) for heating it.

5. The water-saving and energy-efficient cleaning device for aluminum materials in an aluminum processing color coating production line according to claim 1, characterized in that: The outlet pipe (3) is equipped with a butterfly valve on the side near the tank liquid pump (31), and the delivery pipe (4) is equipped with a butterfly valve on the side near the tank liquid pump (31).

6. The water-saving and energy-saving cleaning device for aluminum materials in an aluminum processing color coating production line according to claim 1, characterized in that: The delivery pipe (4) is provided with a straight pipe (34) on the side near the tank liquid pump (31), and the heat exchanger group (32) is connected in parallel with the straight pipe (34). The delivery pipe (4) and the corresponding parts on the front and rear sides of the heat exchanger group (32) are provided with butterfly valves.

7. The water-saving and energy-saving cleaning device for aluminum materials in an aluminum processing color coating production line according to claim 6, characterized in that: A butterfly valve is provided on the straight pipe (34).

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