TWI648092B - Circulating tank filtration system - Google Patents

Abstract

The circulating tank filtration system of the present invention comprises: a water tank; a lower partition disposed on the bottom of the water tank, the lower partition separating the water tank into a first portion and a second portion; and a water inlet disposed above the first portion of the water tank a first upper partition disposed above the first portion of the water tank and positioned between the water inlet and the lower partition; and a second upper partition disposed above the second portion of the water tank, wherein the water to be filtered After flowing out of the water inlet, it can flow from the lower side of the first upper partition to the lower partition, and when the water level is higher than the lower partition, overflow from the upper partition to the second part of the water tank, after which the water can be from the second Below the upper partition flows to the edge of the sink. According to the circulating tank filtration system of the present invention, the suspended matter and the sediment in the water can be effectively filtered, so that the water can be recycled and reused many times, and the water consumption is greatly reduced.

Description

Circulating tank filtration system

The present invention relates to a filtration system, and more particularly to a circulation tank filtration system.

Zinc-iron alloyed product (GA) is easy to cause zinc powder to fall off after alloying, so when cleaning zinc-iron alloy products, there will be zinc slag in the drainage. Referring to FIG. 1, the conventional zinc-iron alloying product, for example, a galvanized steel strip 190, is immersed in a cooling water tank 180 for cleaning and cooling. A nozzle 110 is disposed above the cooling water tank 180, and the galvanized steel strip 190 is sprayed with fresh water onto the galvanized steel strip 190 by the nozzle 110 before or after being immersed in the cooling water tank 180. The water sprayed on the galvanized steel strip 190 will fall on the cooling water tank 180, and the water in the upper layer of the cooling water tank 180 will overflow to the lower circulating water tank 120, and the water in the lower layer of the cooling water tank 180 can be discharged into the return flow tank 170.

The circulating water tank 120 is partitioned into two parts, wherein water overflowing from the cooling water tank 180 flows first to the first portion 121 of the circulating water tank 120, and then the water in the first portion 121 flows to the second portion of the partition wall in an overflow manner. 122, that is, only the upper portion of the water in the first portion 121 of the circulating water tank will flow to the second portion 122 of the circulating water tank. The water system in the second portion 122 of the circulating water tank can flow out in an overflow manner and flow to the return tank 170 for collection. The water in the second portion 122 of the circulating water tank near the bottom of the tank is sent to the filter 140 by the pump 130 for filtration, and then heat exchanged by the heat exchanger 150, and then sent back to the nozzle 110 for discharge to complete a water circulation.

Since most of the zinc powder has a particle size below 159 μm, although the cooling circulation system has an additional filter 140 at the outlet of the pump 130. Considering that the cooling efficiency of the steel strip cannot be reduced, and the filter screen is too small, it is easy to have a problem of blockage. Therefore, after about five days of use of the cooling circulation system, small black spot defects are likely to occur on the steel strip, and in a serious case, a large amount of knockout is caused. Therefore, after about 6 to 7 days of production of the steel strip, a large amount of drainage is required and the clean water is added, which causes a large increase in water consumption.

In view of this, there is a need to propose a solution to solve the above problems.

It is an object of the present invention to provide a recirculating tank filtration system.

In order to achieve the above object, the circulating tank filtration system of the present invention comprises: a water tank; a lower partition disposed on the bottom of the water tank, the lower partition separating the water tank into a first portion and a second portion; a nozzle disposed above the first portion of the water tank; a first upper partition disposed above the first portion of the water tank and positioned between the water inlet and the lower partition; and a second upper partition Above the second portion of the water tank, wherein water to be filtered flows out from the water inlet, and can flow from below the first upper partition to the lower partition, and when the water level is higher than the lower partition, The lower baffle overflows into the second portion of the trough, after which water can flow from below the second upper baffle to the edge of the trough.

According to the circulating tank filtration system of the present invention, the suspended matter and the sediment in the water can be effectively filtered, so that the water can be recycled and reused many times, and the water consumption is greatly reduced.

The above and other objects, features, and advantages of the present invention will become more apparent from the embodiments of the invention.

Referring to Fig. 2, the circulating tank filtration system of the present invention comprises a water tank 220 which is divided into two parts by a lower partition 210 which is vertically disposed at the bottom of the water tank 220, and is a first portion 221 and a second portion 222, respectively. A first upper partition 231 is disposed above the first portion 221 of the water tank, and a second upper partition 232 is disposed above the second portion 222 of the water tank, wherein the first upper partition 231 and the second upper partition 232 are substantially It is parallel to the lower partition plate 210. In addition, a discharge port 241 is disposed above the first portion 221 of the water tank. The discharge port 241 is provided with a valve 242, such as a solenoid valve, which can be timed and closed.

According to the circulating tank filtration system of the present invention, a water inlet 250 is disposed above the first portion 221 of the water tank, and the water inlet 250 is disposed such that the first upper partition 231 is located between the water inlet 250 and the lower partition 210, wherein The water to be filtered is injected into the first portion 221 of the water tank from the water inlet 250. According to the circulating tank filtration system of the present invention, the first upper partition plate 231 and the second upper partition plate 232 are disposed such that the liquid can only flow therethrough without flowing from above and from the side, and the lower partition plate 210 is set such that the liquid can only flow over it, but not from below and to the sides. Therefore, when the water flows out from the water inlet 250, the lower partition 210 can flow from below the first upper partition 231. When the water level is higher than the lower partition 210, it will overflow from the upper partition 210 to the second portion 222 of the water tank. After filtering the circulating water to the second portion 222 of the water tank, it can flow from below the second upper partition 232 to the edge of the water tank 220. When the water level is higher than the edge of the water tank 220, it will overflow into the other water tank 290 of the partition wall. The water in the water tank 290 can be recycled and reused after several procedures. According to the circulating tank filtration system of the present invention, the first upper partition 231 is located downstream of the water inlet 250, the lower partition 210 is located downstream of the first upper partition 231, and the second upper partition 232 is Located downstream of the lower partition 210. Therefore, after the water to be filtered out flows out from the water inlet 250, it passes through the lower or upper portions of the first upper partition plate 231, the lower partition plate 210 and the second upper partition plate 232, and finally can flow from the edge of the water tank 220 to the partition wall. Inside the sink 290.

The circulating tank filtration system of the present invention can be used to filter the water used after cleaning the zinc-iron alloyed product. When filtering, the water to be filtered is sent out from the water inlet 250 and flows into the first portion 221 of the water tank. Since the water contains zinc powder which is easy to float and suspend, these floating zinc powder cannot flow under the first upper partition 231. In addition, there is a larger proportion of zinc powder in the water which will settle in the first portion 221 of the water tank and will not flow from above the lower partition 210 to the second portion 222 of the water tank. Therefore, the water flowing into the second portion 222 of the water tank has filtered out most of the scum and sediment. Similarly, when water flows from the second portion 222 of the water tank to the water tank 290 of the partition wall, the second upper partition 232 can filter out some of the dross, and the edge of the second portion 222 of the water tank is equivalent to the lower partition. Some precipitate was filtered off. Therefore, the water flowing out of the second portion 222 of the water tank has filtered out a large amount of zinc dross and zinc precipitate. The suspended matter accumulated in the upper layer of the first portion 221 of the water tank can automatically open the valve 242 at a time to allow the suspended matter to flow out from the discharge port 241.

According to the circulating tank filtration system of the present invention, the suspended matter and the sediment in the water can be effectively filtered, so that the water can be recycled and reused many times, and the water consumption is greatly reduced.

The present invention has been disclosed in the foregoing embodiments, and is not intended to limit the present invention. Any of the ordinary skill in the art to which the invention pertains can be modified and modified without departing from the spirit and scope of the invention. . Therefore, the scope of the invention is defined by the scope of the appended claims.

110‧‧‧Nozzles

120‧‧‧Circular sink

121‧‧‧The first part of the circulating water tank

122‧‧‧Circular tank second part

130‧‧‧ pump

140‧‧‧Filter

150‧‧‧ heat exchanger

170‧‧‧Reflux tank

190‧‧‧galvanized steel strip

210‧‧‧ lower partition

220‧‧‧Sink

221‧‧‧The first part of the sink

222‧‧‧Sink Part II

231‧‧‧ first upper partition

232‧‧‧Second upper partition

241‧‧‧Drainage

242‧‧‧ Valve

250‧‧‧ water inlet

290‧‧‧Sink

1 is a system diagram of a cooling cycle of a conventional zinc-iron alloy product. 2 is a system diagram of a circulating tank filtration system of the present invention.

Claims (5)

A circulating tank filtration system comprising: a water tank; a lower partition disposed on a bottom of the water tank, the lower partition separating the water tank into a first portion and a second portion; and a water inlet disposed in the water tank a first upper partition, disposed above the first portion of the water tank and located between the water inlet and the lower partition; and a second upper partition disposed in the second portion of the water tank Above, wherein the water to be filtered flows out from the water inlet, and can flow from below the first upper partition to the lower partition, and overflows from above the lower partition when the water level is higher than the lower partition To the second portion of the sink, water can then flow from below the second upper partition to the edge of the sink. The recirculation tank filtration system of claim 1, wherein the first upper partition and the second upper partition are parallel to the lower partition. The circulation tank filtration system of claim 1, wherein another water tank is disposed beside the water tank, and when water flows under the second upper partition, it can overflow from the edge of the water tank to the other Inside a sink. The circulation tank filtration system of claim 1, wherein a discharge port is disposed above the first portion of the water tank for discharging water in an upper portion of the first portion of the water tank. The circulation tank filtration system of claim 4, wherein the discharge port is provided with a solenoid valve, and the solenoid valve can be opened periodically.