Extracorporeal circulation precipitation tank for high-temperature phosphating solution

Abstract

The utility model provides a high-temperature phosphating solution extracorporeal circulation precipitation tank which comprises a precipitation tank body arranged corresponding to a production line phosphating tank, a square part is formed in the precipitation tank body and close to the top surface of the precipitation tank body, and a conical part is formed in the precipitation tank body and close to the bottom surface of the precipitation tank body. A discharging pipe and a feeding pipe are arranged on the left side and the right side, corresponding to the square part, of the precipitation tank body respectively and communicate with the interior of the square part, a discharging pipe is arranged on the bottom face of the precipitation tank body and communicates with the interior of the conical part, and a plurality of partition plates are fixed to the inner side wall of the square part at equal intervals. The partition plates are distributed in a front-back staggered mode, and liquid flowing channels are formed in the square part among the multiple partition plates. According to the high-temperature phosphating solution extracorporeal circulation precipitation tank, phosphating scum in a production line phosphating tank is transferred into the precipitation tank body for sediment and slag removal, so that the slag removal frequency is effectively reduced, the period of 15 days is prolonged to 3 months, the labor cost and the labor intensity are reduced, and the yield is increased.

Description

Technical Field

[0001] This utility model belongs to the field of wire surface treatment technology, and relates to a high-temperature phosphating sedimentation tank for wire rods, and more particularly to a high-temperature phosphating liquid external circulation sedimentation tank. Background Technology

[0002] Wire rod is a metal product, usually made from steel through drawing or rolling. It is widely used in construction, manufacturing and other industrial fields. The wire rod processing technology includes steps such as hot rolling, cooling, pickling and phosphating. Phosphating is a process in which the metal surface is reacted with a phosphate solution to form a dense phosphate film. This phosphate film has good corrosion resistance and adhesion, which can effectively improve the rust prevention of steel, improve the adhesion of subsequent coatings, and reduce friction.

[0003] In the existing online pickling process for wire rod, after the medium-high temperature phosphating equipment reaches a certain output, the phosphating liquid in the phosphating tank must be pumped out. A large amount of phosphating slag at the bottom of the tank needs to be removed every 15 days. However, existing slag removal methods have the following drawbacks: 1) The frequency of slag removal every 15 days is too high, reducing output, and phosphating work cannot be carried out during the slag removal period; 2) The high frequency of slag removal every 15 days results in high labor costs and increases production costs. Therefore, a high-temperature phosphating liquid external circulation sedimentation tank is proposed to solve the above technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-temperature phosphating liquid external circulation sedimentation tank that addresses the shortcomings of the existing technology. This tank has the advantages of increased output and reduced labor costs, thus solving the problems of reduced output and increased labor costs.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A high-temperature phosphating liquid external circulation sedimentation tank includes a sedimentation tank body corresponding to the phosphating tank in the production line. A square portion is formed near the top surface of the sedimentation tank body, and a conical portion is formed near the bottom surface of the sedimentation tank body. A discharge pipe and a feed pipe are respectively provided on the left and right sides of the sedimentation tank body corresponding to the square portion, and both the discharge pipe and the feed pipe are connected to the interior of the square portion. A discharge pipe is provided on the bottom surface of the sedimentation tank body, and the discharge pipe is connected to the interior of the conical portion. A plurality of partition plates are fixed at equal intervals on the inner sidewall of the square portion, and the partition plates are staggered front and back, forming a liquid flow channel between the partition plates within the square portion.

[0007] Preferably, the feed pipe and the discharge pipe are arranged alternately on the sedimentation tank body.

[0008] Preferably, a manual butterfly valve is provided on the feed pipe, and the feed pipe is connected to the feed pump.

[0009] Preferably, a feed hole is provided on the right side of the sedimentation tank body corresponding to the square portion, and the feed pipe is disposed in the feed hole.

[0010] Preferably, a manual butterfly valve is provided on the discharge pipe, and the discharge pipe is connected to the discharge pump.

[0011] Preferably, the left end of the discharge pipe is connected to the clear liquid tank and communicates with the interior of the cleaning tank.

[0012] Preferably, a discharge hole is provided on the left side of the sedimentation tank body corresponding to the square portion, and the discharge pipe is disposed in the discharge hole.

[0013] Preferably, a pneumatic butterfly valve is provided on the discharge pipe, and a timing component is provided on the pneumatic butterfly valve.

[0014] Preferably, a stirring system is provided corresponding to the discharge pipe.

[0015] Preferably, the bottom of the sedimentation tank body is provided with a discharge hole, and the discharge hole is connected to the discharge pipe.

[0016] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0017] (1) The high-temperature phosphating liquid external circulation sedimentation tank effectively reduces the slag removal frequency by transferring the phosphating slag in the phosphating tank of the production line to the sedimentation tank body for slag removal, and extends the cycle from 15 days to 3 months. This not only reduces labor costs and labor intensity, but also effectively increases output.

[0018] (2) The high-temperature phosphating liquid external circulation sedimentation tank forms a continuous S-shaped liquid flow channel in the square part through several partition plates, which can increase the flow time of the raw liquid in the square tank, thereby effectively separating the phosphating scum in the raw liquid and making the separated clear liquid of higher quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the sedimentation tank body in a high-temperature phosphating liquid external circulation sedimentation tank according to the present invention.

[0020] Figure 2 This is a top view of the sedimentation tank body in a high-temperature phosphating liquid external circulation sedimentation tank according to the present invention.

[0021] Figure 3 This is a bottom view of the sedimentation tank body in a high-temperature phosphating liquid external circulation sedimentation tank according to the present invention.

[0022] Figure 4 This is a cross-sectional structural diagram of the sedimentation tank body in a high-temperature phosphating liquid external circulation sedimentation tank according to the present invention.

[0023] The attached figures are labeled as follows: 100 sedimentation tank body, 110 square part, 120 conical part, 130 discharge port, 140 liquid flow channel, 200 feed pipe, 210 manual butterfly valve for feed, 300 discharge pipe, 310 manual butterfly valve for discharge, 400 discharge pipe, 410 pneumatic butterfly valve, and 500 partition plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1:

[0027] See also Figure 1-4 This embodiment of a high-temperature phosphating liquid external circulation sedimentation tank includes a sedimentation tank body 100 corresponding to the phosphating tank of the production line. A square portion 110 is formed near the top surface of the sedimentation tank body 100, and a conical portion 120 is formed near the bottom surface of the sedimentation tank body 100. A discharge pipe 300 and a feed pipe 200 are respectively provided on the left and right sides of the sedimentation tank body 100 corresponding to the square portion 110, and both the discharge pipe 300 and the feed pipe 200 are connected to the inside of the square portion 110. A discharge pipe 400 is provided on the bottom surface of the sedimentation tank body 100, and the discharge pipe 400 is connected to the inside of the conical portion 120. A plurality of partition plates 500 are fixed at equal intervals on the inner sidewall of the square portion 110, and the partition plates 500 are staggered front and back. A liquid flow channel 140 is formed between the partition plates 500 in the square portion 110.

[0028] Specifically, the liquid flow channel 140 is a continuous S-shaped channel, which increases the flow time of the raw liquid in the square part and ensures that the phosphating scum in the raw liquid can be fully settled into the conical part; preferably, the volume of the sedimentation tank body 100 is one-eighth of the volume of the phosphating tank in the production line.

[0029] In application, the raw liquid containing phosphating scum is introduced into the sedimentation tank body 100. At this time, the raw liquid is located in the square part 110. Subsequently, with the continuous injection of raw liquid, it will enter the liquid flow channel 140 and flow along the liquid flow channel 140. When the raw liquid is flowing, the phosphating scum in the raw liquid will slowly sink to the conical part 120 under the action of gravity. After the raw liquid flowing in the liquid flow channel 140 separates from the phosphating scum, it will gradually become clear liquid. After the clear liquid flows out of the liquid flow channel 140, it will be discharged by the discharge pipe 300 and guided to a designated place. The phosphating scum deposited inside the conical part 120 will also be discharged periodically by the discharge pipe 400. In this way, the scum removal frequency of the sedimentation tank is effectively reduced, and the scum removal cycle of 15 days is extended to 3 months. This reduces labor costs, reduces labor intensity, and increases output.

[0030] Example 2:

[0031] The basic content is the same as in Example 1, except that:

[0032] See also Figure 1-2 In this embodiment, the feed pipe 200 and the discharge pipe 300 are staggered on the sedimentation tank body 100. The feed pipe 200 is equipped with a manual butterfly valve 210 and is connected to the feed pump. The right side of the sedimentation tank body 100 has a feed hole corresponding to the square part 110, and the feed pipe 200 is placed in the feed hole. The discharge pipe 300 is equipped with a manual butterfly valve 310 and is connected to the discharge pump. The left end of the discharge pipe 300 is connected to the clear liquid tank and communicates with the interior of the cleaning tank. The left side of the sedimentation tank body 100 has a discharge hole corresponding to the square part 110, and the discharge pipe 300 is placed in the discharge hole.

[0033] In application, first open the manual butterfly valve 210 for feeding and the manual butterfly valve 310 for discharging. Then, use the feeding pump to export the raw liquid from the phosphating tank of the production line and introduce it into the square section 110 through the feeding pipe 200. When the raw liquid flows in the liquid flow channel 140 in the square section 110, the raw liquid will separate into clear liquid and phosphating scum. The phosphating scum will slowly sink to the bottom of the conical section 120 under the action of gravity, while the clear liquid will continue to flow in the liquid flow channel 140 and flow to the discharge pipe 300. The discharge pump will then export the clear liquid from the square section 110 through the discharge pipe 300.

[0034] Example 3:

[0035] The basic content is the same as in Example 1, except that:

[0036] See also Figure 1 and Figure 3In this embodiment, a pneumatic butterfly valve 410 is provided on the discharge pipe 400, a timing component is provided on the pneumatic butterfly valve 410, a stirring system is provided corresponding to the discharge pipe 400, and a discharge hole is opened on the bottom surface of the sedimentation tank body 100, which is connected to the discharge pipe 400.

[0037] During application, the phosphating slag separated from the original liquid will be deposited at the bottom of the conical part 120 and form a thick slurry of phosphating slag. After a period of deposition, the pneumatic butterfly valve 410 will open at regular intervals, and the thick slurry of phosphating slag deposited at the bottom of the conical part 120 will be discharged to the corresponding stirring system through the discharge pipe 400.

[0038] In summary, the working principle of this high-temperature phosphating liquid external circulation sedimentation tank is as follows:

[0039] The raw liquid is drawn from the phosphating tank of the production line by the feed pump and introduced into the sedimentation tank body 100 through the feed pipe 200. The raw liquid entering the sedimentation tank body 100 flows along the liquid flow channel 140 under the action of the partition plate. During the flow, the raw liquid is separated into clear liquid and scum. The clear liquid flows continuously in the liquid flow channel 140 and is discharged from the sedimentation tank body 100 by the discharge pump through the discharge pipe 300. The discharged clear liquid is stored in the clear liquid tank and introduced into the phosphating tank of the production line through the pipeline to continue to participate in the subsequent production work. The scum continuously settles into the conical part 120 to form a thick slurry of phosphating scum. Under the timed switch of the pneumatic butterfly valve 410, the thick slurry of phosphating scum deposited at the bottom of the conical part 120 is discharged into the stirring system of the phosphating production line by the discharge pipe 400. Finally, the thick slurry of phosphating scum in the stirring system is pumped to the centrifuge of the phosphating production line for dehydration and slag formation.

[0040] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0041] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0042] Finally, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature phosphating liquid external circulation sedimentation tank, comprising a sedimentation tank body (100) corresponding to the phosphating tank in the production line, characterized in that: A square portion (110) is formed near the top surface of the sedimentation tank body (100), and a conical portion (120) is formed near the bottom surface of the sedimentation tank body (100). A discharge pipe (300) and a feed pipe (200) are respectively provided on the left and right sides of the sedimentation tank body (100) corresponding to the square portion (110), and the discharge pipe (300) and the feed pipe (200) are connected to the inside of the square portion (110). A discharge pipe (400) is provided on the bottom surface of the sedimentation tank body (100), and the discharge pipe (400) is connected to the inside of the conical portion (120). A plurality of partition plates (500) are fixed at equal intervals on the inner sidewall of the square portion (110), and the partition plates (500) are staggered front and back. A liquid flow channel (140) is formed between the partition plates (500) in the square portion (110).

2. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The feed pipe (200) and discharge pipe (300) are arranged alternately on the sedimentation tank body (100).

3. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The feed pipe (200) is equipped with a manual feed butterfly valve (210), and the feed pipe (200) is connected to the feed pump.

4. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The right side of the sedimentation tank body (100) corresponding to the square part (110) is provided with a feed hole, and the feed pipe (200) is arranged in the feed hole.

5. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The discharge pipe (300) is equipped with a manual butterfly valve (310), and the discharge pipe (300) is connected to the discharge pump.

6. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The left end of the discharge pipe (300) is connected to the clear liquid tank and communicates with the interior of the cleaning tank.

7. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The sedimentation tank body (100) has a discharge hole on the left side corresponding to the square part (110), and the discharge pipe (300) is arranged in the discharge hole.

8. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: A pneumatic butterfly valve (410) is provided on the discharge pipe (400), and a timing component is provided on the pneumatic butterfly valve (410).

9. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: A stirring system is provided corresponding to the discharge pipe (400).

10. The high-temperature phosphating liquid external circulation sedimentation tank according to claim 1, characterized in that: The bottom of the sedimentation tank body (100) is provided with a discharge hole, which is connected to the discharge pipe (400).

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