Hot galvanizing water quenching cooling system

Abstract

The utility model discloses a hot galvanizing water quenching cooling system which comprises a first-stage cooling pond, a multi-stage cooling tower and a second-stage cooling pond, the multi-stage cooling tower comprises a main cooling tower and at least one auxiliary cooling tower, a water outlet of the first-stage cooling pond is connected with a water inlet of the main cooling tower through a first water pipe, and the first water pipe is provided with a first water pump; a water outlet of the main cooling tower is connected with a water inlet of the auxiliary cooling tower through a water distribution pipe which is provided with an electric pump. A water outlet of the main cooling tower is connected with a water inlet of the second-stage cooling pond through a second water pipe provided with a second water pump, a water outlet of the auxiliary cooling tower is connected with the water inlet of the second-stage cooling pond through a third water pipe provided with a third water pump, and a water outlet of the second-stage cooling pond is connected with a water inlet of the first-stage cooling pond through a circulating water pipe. The circulating water pipe is provided with a circulating water pump. According to the hot galvanizing water quenching cooling system provided by the embodiment of the utility model, the cyclic utilization of cooling water can be realized, the cooling efficiency is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel smelting, in particular to a hot-dip galvanizing water quenching cooling system. Background Art

[0002] In the continuous hot-dip galvanizing production process, the temperature of the strip is relatively high after passing through the annealing furnace and zinc pot, usually between 450°C and 480°C. Since the subsequent skin pass and stretch straightening of the strip must be carried out at room temperature, the temperature of the strip should be ensured not to be higher than 40°C during skin pass and stretch straightening. Therefore, the strip needs to be cooled after hot-dip galvanizing.

[0003] In the prior art, the hot-dip galvanized steel strip is usually placed in a cooling pool for cooling. However, during mass production, the water in the cooling pool boils quickly, and the hot water greatly reduces the cooling efficiency of the steel strip and also has a great impact on the appearance quality of the galvanized steel strip. If the water in the cooling pool is frequently replaced, it will affect the production efficiency and waste water resources. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hot-dip galvanizing water quenching cooling system, which can utilize a multi-stage cooling tower and a circulation device connecting a primary cooling pool and a secondary cooling pool to realize the recycling of cooling water, improve cooling efficiency, and save costs.

[0005] According to a hot-dip galvanizing water quenching cooling system proposed by the utility model, it includes a primary cooling pool, a multi-stage cooling tower and a secondary cooling pool, the multi-stage cooling tower includes a main cooling tower and at least one auxiliary cooling tower, the water outlet of the primary cooling pool is connected to the water inlet of the main cooling tower through a first water pipe, the first water pipe is provided with a first water pump, the water outlet of the main cooling tower is connected to the water inlet of the auxiliary cooling tower through a branch water pipe, the branch water pipe is provided with an electric pump; the water outlet of the main cooling tower is connected to the water inlet of the secondary cooling pool through a second water pipe, the second water pipe is provided with a second water pump, the water outlet of the auxiliary cooling tower is connected to the water inlet of the secondary cooling pool through a third water pipe, the third water pipe is provided with a third water pump, the water outlet of the secondary cooling pool is connected to the water inlet of the primary cooling pool through a circulating water pipe, and the circulating water pipe is provided with a circulating water pump.

[0006] According to the above embodiments of the utility model, at least the following beneficial effects are achieved:

[0007] The hot-dip galvanizing water quenching cooling system provided by the embodiment of the utility model cools the strip through a primary cooling pool, and transports the higher temperature cooling water in the primary cooling pool to a multi-stage cooling tower for cooling through a pump body, wherein the cooling water in the main cooling tower is diverted through a secondary cooling tower to improve the cooling efficiency of the cooling water, and the cooling water cooled by the multi-stage cooling tower is transported to the secondary cooling pool through a pump body for secondary cooling, and the cooling water in the secondary cooling pool is re-transported to the primary cooling pool through a circulating water pipe and a circulating water pump, thereby increasing the number of recycling times of cooling water, saving water resources, and improving the cooling effect of the strip.

[0008] According to some embodiments of the utility model, two auxiliary cooling towers are provided, and the water distribution pipe is provided with a pressure regulating valve.

[0009] According to some embodiments of the utility model, the circulating water pipe is provided with a filter, and the filter is arranged close to the water outlet of the secondary cooling pool.

[0010] According to some embodiments of the utility model, the filter includes a filter tube and a plurality of filter plates, one end of the filter tube is connected to the water outlet of the secondary cooling pool, and the other end is connected to the circulating water pipe, a plurality of through grooves are arranged on the inner wall on one side of the filter tube, and a plurality of slots are correspondingly arranged on the inner wall on the other side of the filter tube, the filter plate can be inserted into the through grooves and the slots in sequence, and the filter plate is sealed and connected to the filter tube.

[0011] According to some embodiments of the present invention, five filter plates are provided, and the five filter plates are evenly spaced apart along the length direction of the filter tube.

[0012] According to some embodiments of the present invention, a handle is provided at one end of the filter plate away from the slot.

[0013] According to some embodiments of the present invention, the filter tube is provided with a lock for fixing the filter plate.

[0014] According to some embodiments of the utility model, the circulating water pipe is provided with an inspection device, which includes a box body, the box body is provided with a water cavity with an upper opening, the outer wall of the box body is provided with an inlet and an outlet connected to the circulating water pipe, at least two colored floats are provided in the water cavity, the diameter of the colored floats is larger than the diameter of the inlet and the outlet, and the box body is provided with a transparent glass plate to close the opening.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of the structure of the hot-dip galvanizing water quenching cooling system of some embodiments of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of filters in some embodiments of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the inspection device of some embodiments of the utility model.

[0020] Wherein, the reference numerals are:

[0021] Primary cooling pool 100; first water pipe 110; first water pump 120;

[0022] Main cooling tower 200; water distribution pipe 210; electric pump 220; pressure regulating valve 230; second water pipe 240; second water pump 250;

[0023] Auxiliary cooling tower 300; third water pipe 310; third water pump 320;

[0024] Secondary cooling pool 400; circulating water pipe 410; circulating water pump 420;

[0025] Filter 500; filter tube 510; through slot 511; slot 512; filter plate 520; handle 521;

[0026] Inspection device 600; box body 610; water chamber 611; inlet 612; outlet 613; colored floating ball 620; transparent glass plate 630. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figure 1 According to the utility model, a hot-dip galvanizing water quenching cooling system includes a primary cooling pool 100, a multi-stage cooling tower and a secondary cooling pool 400. The multi-stage cooling tower includes a main cooling tower 200 and at least one auxiliary cooling tower. The water outlet of the primary cooling pool 100 is connected to the water inlet of the main cooling tower 200 through a first water pipe 110. The first water pipe 110 is provided with a first water pump 120. The water outlet of the main cooling tower 200 is connected to the water inlet of the auxiliary cooling tower through a water distribution pipe 210. The water distribution pipe 210 is provided with a first water pump 120. There is an electric pump 220; the water outlet of the main cooling tower 200 is connected to the water inlet of the secondary cooling pool 400 through the second water pipe 240, the second water pipe 240 is provided with a second water pump 250, the water outlet of the auxiliary cooling tower is connected to the water inlet of the secondary cooling pool 400 through the third water pipe 310, the third water pipe 310 is provided with a third water pump 320, the water outlet of the secondary cooling pool 400 is connected to the water inlet of the primary cooling pool 100 through the circulating water pipe 410, and the circulating water pipe 410 is provided with a circulating water pump 420.

[0032] Specifically, the hot-dip galvanizing water quenching cooling system provided by the embodiment of the utility model cools the strip through a primary cooling pool 100, and transports the higher temperature cooling water in the primary cooling pool 100 to a multi-stage cooling tower for cooling through a pump body, wherein the cooling water in the main cooling tower 200 is diverted through an auxiliary cooling tower to improve the cooling efficiency of the cooling water, and the cooling water after cooling in the multi-stage cooling tower is transported to the secondary cooling pool 400 through a pump body for secondary cooling, and the cooling water in the secondary cooling pool 400 is re-transported to the primary cooling pool 100 through a circulating water pipe 410 and a circulating water pump 420, thereby increasing the number of times the cooling water is recycled, saving water resources, and improving the cooling effect of the strip.

[0033] Preferably, refer to Figure 1According to some embodiments of the utility model, two auxiliary cooling towers are provided, and the water distribution pipe 210 is provided with a pressure regulating valve 230. The cooling water in the main cooling tower 200 is diverted through the two auxiliary cooling towers to improve the cooling efficiency of the cooling water. The pressure of the cooling water delivered by the water distribution pipe 210 is adjusted and controlled by providing the pressure regulating valve 230.

[0034] Further, see Figure 1 and Figure 2 According to some embodiments of the utility model, the circulating water pipe 410 is provided with a filter 500, and the filter 500 is arranged near the water outlet of the secondary cooling pool 400. Impurities in the cooling water are filtered out by the filter 500, thereby reducing impurities in the primary cooling pool 100 and preventing impurities from affecting the quality of the strip.

[0035] Specifically, refer to Figure 2 According to some embodiments of the utility model, the filter 500 includes a filter tube 510 and a plurality of filter plates 520. One end of the filter tube 510 is connected to the water outlet of the secondary cooling pool 400, and the other end is connected to the circulating water pipe 410. A plurality of through grooves 511 are arranged on the inner wall of one side of the filter tube 510, and a plurality of slots 512 are correspondingly arranged on the inner wall of the other side of the filter tube 510. The filter plates 520 can be inserted into the through grooves 511 and the slots 512 in sequence. The filter plates 520 are sealed and connected to the filter tube 510, so that the filter plates 520 can be quickly disassembled and assembled for easy replacement and maintenance.

[0036] Preferably, refer to Figure 2 According to some embodiments of the present invention, five filter plates 520 are provided, and the five filter plates 520 are evenly spaced along the length direction of the filter tube 510 .

[0037] Preferably, refer to Figure 2 According to some embodiments of the present invention, a handle 521 is provided at one end of the filter plate 520 away from the slot 512 to facilitate disassembly and assembly.

[0038] Preferably, according to some embodiments of the present invention, the filter tube 510 is provided with a lock for fixing the filter plate 520 to prevent the filter plate 520 from being detached during use and affecting the filtering effect.

[0039] Further, see Figure 1 and Figure 3According to some embodiments of the utility model, the circulating water pipe 410 is provided with an inspection device 600 for inspecting the water level in the circulating water pipe 410. The inspection device 600 includes a box body 610. The box body 610 is provided with a water cavity 611 with an upper opening. The outer wall of the box body 610 is provided with an inlet 612 and an outlet 613 connected to the circulating water pipe 410. At least two colored floats 620 are provided in the water cavity 611. The diameter of the colored floats 620 is larger than the diameter of the inlet 612 and the outlet 613. The box body 610 is provided with a transparent glass plate 630 to close the opening.

[0040] In the embodiment of the utility model, the connecting member may be a clip or a plate of other shapes, and the connection method may be a snap connection, a screw connection or a welding method, which will not be described in detail here.

[0041] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A hot dip galvanizing water quenching cooling system, characterized in that: include: Primary cooling pool; A multi-stage cooling tower, comprising a main cooling tower and at least one auxiliary cooling tower, wherein the water outlet of the primary cooling pool is connected to the water inlet of the main cooling tower via a first water pipe, the first water pipe is provided with a first water pump, the water outlet of the main cooling tower is connected to the water inlet of the auxiliary cooling tower via a water distribution pipe, and the water distribution pipe is provided with an electric pump; A secondary cooling pool, the water outlet of the main cooling tower is connected to the water inlet of the secondary cooling pool through a second water pipe, the second water pipe is provided with a second water pump, the water outlet of the auxiliary cooling tower is connected to the water inlet of the secondary cooling pool through a third water pipe, the third water pipe is provided with a third water pump, the water outlet of the secondary cooling pool is connected to the water inlet of the primary cooling pool through a circulating water pipe, and the circulating water pipe is provided with a circulating water pump.

2. The hot dip galvanizing water quenching cooling system according to claim 1, characterized in that: The auxiliary cooling towers are provided with two, and the water distribution pipe is provided with a pressure regulating valve.

3. The hot dip galvanizing water quenching cooling system according to claim 1, characterized in that: The circulating water pipe is provided with a filter, and the filter is arranged close to the water outlet of the secondary cooling pool.

4. The hot dip galvanizing water quenching cooling system according to claim 3, characterized in that: The filter includes a filter tube and a plurality of filter plates. One end of the filter tube is connected to the water outlet of the secondary cooling pool, and the other end is connected to the circulating water pipe. A plurality of through grooves are arranged on the inner wall of one side of the filter tube, and a plurality of slots are correspondingly arranged on the inner wall of the other side of the filter tube. The filter plate can be inserted into the through grooves and the slots in sequence, and the filter plate is sealed and connected to the filter tube.

5. The hot dip galvanizing water quenching cooling system according to claim 4, characterized in that: There are five filter plates, and the five filter plates are evenly spaced along the length direction of the filter tube.

6. The hot dip galvanizing water quenching cooling system according to claim 4, characterized in that: A handle is provided at one end of the filter plate away from the slot.

7. The hot dip galvanizing water quenching cooling system according to claim 4, characterized in that: The filter tube is provided with a lock buckle for fixing the filter plate.

8. The hot dip galvanizing water quenching cooling system according to claim 1, characterized in that: The circulating water pipe is provided with an inspection device, which includes a box body, the box body is provided with a water cavity with an upper opening, the outer wall of the box body is provided with an inlet and an outlet connected to the circulating water pipe, at least two colored floats are provided in the water cavity, the diameter of the colored floats is larger than the diameter of the inlet and the outlet, and the box body is provided with a transparent glass plate to close the opening.

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