Industrial wastewater treatment device

Abstract

The utility model discloses an industrial wastewater treatment device which comprises a first purification box body, a second purification box body, a stirring mechanism, a heating mechanism, an air draft mechanism and a cooling mechanism, a connecting pipe is arranged between the second purification box body and the first purification box body, a baffle is arranged in the second purification box body in the height direction of the second purification box body, and the stirring mechanism is arranged in the second purification box body. The inner space of the second purification box body is divided into a first cavity and a second cavity by the baffle plate; the stirring mechanism is arranged in the first purification box body, and the stirring mechanism has a rotational degree of freedom in the first purification box body; the heating mechanism is arranged in the first cavity; the air draft mechanism is arranged in the first cavity and right faces the heating mechanism. And the cooling mechanism is arranged in the second cavity, and the cooling mechanism is communicated with the air draft mechanism. The industrial wastewater treatment device can solve the problem that an existing industrial wastewater treatment device cannot thoroughly treat impurities in wastewater.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment, and in particular to an industrial wastewater treatment device. Background Art

[0002] Industrial wastewater refers to wastewater, sewage and waste liquid generated during industrial production, which contains industrial production materials, intermediates and products lost with water, as well as pollutants generated during the production process. With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. Therefore, industrial wastewater needs to be treated before it can be discharged.

[0003] Existing industrial wastewater treatment devices do not treat impurities in wastewater thoroughly enough, and there are still many pollutants in the discharged purified water, thus causing environmental pollution.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0005] The main purpose of the present application is to provide an industrial wastewater treatment device, aiming to solve the problem that the existing industrial wastewater treatment devices do not treat impurities in the wastewater thoroughly enough.

[0006] To achieve the above-mentioned objectives, the present application provides an industrial wastewater treatment device, comprising a first purification box, a second purification box, a stirring mechanism, a heating mechanism, an exhaust mechanism and a cooling mechanism, wherein a connecting pipe is arranged between the second purification box and the first purification box, and a baffle is arranged inside the second purification box along its height direction, and the baffle divides the internal space of the second purification box into a first cavity and a second cavity; the stirring mechanism is arranged in the first purification box, and the stirring mechanism has rotational freedom in the first purification box; the heating mechanism is arranged in the first cavity; the exhaust mechanism is arranged in the first cavity and is opposite to the heating mechanism; the cooling mechanism is arranged in the second cavity, and the cooling mechanism is communicated with the exhaust mechanism.

[0007] Optionally, the stirring mechanism includes a motor base, a motor, a rotating shaft and stirring blades, wherein the motor is fixed to the motor base, and the motor has an output shaft; the rotating shaft is fixed to the end of the output shaft of the motor through a coupling, and the rotating shaft rotates with the first purification box; there are multiple stirring blades arranged along the circumference of the rotating shaft, the inner diameter of the first purification box is a, and the extension length of each stirring blade in the radial direction of the first purification box is b, then a>b.

[0008] Optionally, the first purification box includes a first cover body and a first accommodating chamber, wherein the motor is arranged on a side of the first cover body away from the stirring blade, a first bearing seat is arranged in the middle of the first cover body, and a first bearing is arranged in the first bearing seat; the first accommodating chamber is detachably connected to the first cover body, the rotating shaft is located in the first accommodating chamber, a second bearing seat is arranged on the inner side of the first accommodating chamber away from and facing the first bearing seat, and a second bearing is arranged in the second bearing seat; one end of the rotating shaft is fixed in the first bearing, and the other end of the rotating shaft is fixed in the second bearing.

[0009] Optionally, the second purification box includes a second cover body and a second accommodating chamber, wherein the exhaust mechanism is connected to the second cover body; the second accommodating chamber is detachably connected to the second cover body, and the heating mechanism and the cooling mechanism are both arranged in the second accommodating chamber.

[0010] Optionally, the heating mechanism includes a heating plate, a heating wire and a wastewater storage box, the heating wire is arranged on the heating plate; the wastewater storage box is fixed on the heating plate, the wastewater storage box is in contact with the heating wire, and the wastewater storage box has an opening on a side away from the heating wire.

[0011] Optionally, the exhaust mechanism includes an exhaust box and an exhaust pipe, wherein the exhaust box is fixed to the side of the second cover body facing the wastewater temporary storage box; the exhaust pipe is connected to the side of the exhaust box facing the wastewater temporary storage box, the end of the exhaust pipe is funnel-shaped, and the end of the exhaust pipe is facing the opening of the wastewater temporary storage box.

[0012] Optionally, a filter mechanism is disposed in the first accommodation chamber, the filter mechanism is attached to the inner wall of the first accommodation chamber, and the filter mechanism is rotatably matched with the rotating shaft.

[0013] Optionally, the filtering mechanism includes a matching ring and a filter screen, wherein the matching ring is embedded in the first receiving chamber and the edge is in contact with the inner wall of the first receiving chamber; the filter screen is fixed to the matching ring, and the volume of the filter screen is smaller than the volume of the first receiving chamber.

[0014] Optionally, the cooling mechanism includes a connecting frame and a cooling box, wherein the connecting frame is fixed to one side of the baffle; the cooling box is fixed to the connecting frame, a condensation pipe is arranged between the cooling box and the exhaust box, and a water outlet pipe is arranged at the outlet end of the cooling box.

[0015] Optionally, a water pump is connected to the connecting pipe.

[0016] An industrial wastewater treatment device proposed in the embodiment of the present application performs multi-stage purification of industrial wastewater in a first purification box and a second purification box. In the process of purifying the industrial wastewater, a stirring mechanism is set in the first purification box to stir the industrial wastewater and the drug evenly so that the two can react chemically more fully, thereby forming a precipitate to remove part of the impurities in the industrial wastewater. A heating mechanism is set in the second purification box to heat and boil the industrial wastewater after the precipitation treatment, and the exhaust mechanism draws the water vapor formed after boiling into the cooling mechanism for cooling, thereby obtaining purified water. The water purified by the industrial wastewater treatment device involved in the present application completely removes the impurities mixed in the industrial wastewater, and will not cause pollution to the environment after being discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of an industrial wastewater treatment device according to an embodiment of the present application;

[0018] Figure 2 for Figure 1 A schematic diagram of the internal structure of the first purification box;

[0019] Figure 3 for Figure 1 Schematic diagram of the internal structure of the second purification box;

[0020] Figure 4 for Figure 2 The structural diagram of the filtering mechanism;

[0021] Figure 5 for Figure 2 Schematic diagram of the matching relationship between the transfer shaft and the first purification box.

[0022] Among them, 1. the first purification box; 101. the first cover; 102. the first receiving chamber; 103. the first bearing seat; 104. the first bearing; 105. the second bearing seat; 106. the second bearing; 107. the filtering mechanism; 108. the matching ring; 109. the filter screen; 2. the second purification box; 201. the baffle; 202. the second cover; 203. the second receiving chamber; 3. the connecting pipe; 301. the water pump; 4. the stirring mechanism; 401. the motor seat; 402. the motor; 403. the rotating shaft; 404. the stirring blade; 5. the heating mechanism; 501. the heating plate; 502. the wastewater temporary storage box; 6. the exhaust mechanism; 601. the exhaust box; 602. the exhaust pipe; 7. the cooling mechanism; 701. the connecting frame; 702. the cooling box; 703. the condensing pipe; 704. the water outlet pipe.

[0023] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] See also Figure 1 to Figure 3An embodiment of the present application provides an industrial wastewater treatment device, which may include a first purification box 1, a second purification box 2, a stirring mechanism 4, a heating mechanism 5, an exhaust mechanism 6 and a cooling mechanism 7, wherein a connecting pipe 3 is arranged between the second purification box 2 and the first purification box 1, and a baffle 201 is arranged inside the second purification box 2 along its height direction, and the baffle 201 divides the internal space of the second purification box 2 into a first cavity and a second cavity; the stirring mechanism 4 is arranged in the first purification box 1, and the stirring mechanism 4 has rotational freedom in the first purification box 1; the heating mechanism 5 is arranged in the first cavity; the exhaust mechanism 6 is arranged in the first cavity and is opposite to the heating mechanism 5; the cooling mechanism 7 is arranged in the second cavity, and the cooling mechanism 7 is connected to the exhaust mechanism 6.

[0029] Specifically, a wastewater inlet and a drug inlet are also provided on the first purification box 1. When purifying industrial wastewater, the industrial wastewater is discharged into the first purification box 1 from the wastewater inlet, and the drug enters the first purification box 1 from the drug inlet. When the industrial wastewater and the drug are mixed, the stirring mechanism 4 is started to stir the mixture so that the mixture is evenly mixed and fully reacts chemically, thereby generating a precipitate and precipitating it at the bottom of the first purification box 1. After the reaction is completed and the precipitate is completely precipitated, the industrial wastewater that has been precipitated is discharged into the second purification box 2 through the connecting pipe 3. In the second purification box 2, the industrial wastewater first enters the heating mechanism 5, and the industrial wastewater is heated in the heating mechanism 5 until it evaporates. Then, the exhaust mechanism 6 is started to collect the evaporated water vapor and discharge it into the cooling mechanism 7. After the water vapor cools down in the cooling mechanism 7, it is restored to liquid water and discharged.

[0030] In this embodiment, industrial wastewater is subjected to multi-stage purification in the first purification box 1 and the second purification box 2. In the process of purifying the industrial wastewater, a stirring mechanism 4 is provided in the first purification box 1 to stir the industrial wastewater and the drug evenly so that the two can react chemically more fully, thereby forming a precipitate to remove part of the impurities in the industrial wastewater. A heating mechanism 5 is provided in the second purification box 2 to heat and boil the industrial wastewater after the precipitation treatment, and the water vapor formed after boiling is drawn into the cooling mechanism 7 by the exhaust mechanism 6 for cooling, thereby obtaining purified water. The water purified by the industrial wastewater treatment device involved in this application completely removes the impurities mixed in the industrial wastewater, and will not cause pollution to the environment after being discharged.

[0031] See also Figure 2The stirring mechanism 4 may include a motor base 401, a motor 402, a rotating shaft 403 and stirring blades 404, wherein the motor 402 is fixed to the motor base 401, and the motor 402 has an output shaft; the rotating shaft 403 is fixed to the end of the output shaft of the motor 402 through a coupling, and the rotating shaft 403 rotates with the first purification box 1; a plurality of stirring blades 404 are arranged along the circumference of the rotating shaft 403, the inner diameter of the first purification box 1 is a, and the extension length of each stirring blade 404 in the radial direction of the first purification box 1 is b, then a>b.

[0032] Specifically, when the mixture of industrial wastewater and medicine is stirred, the motor 402 is started, and the motor 402 drives the rotating shaft 403 connected to its output shaft, and the rotating shaft 403 starts to rotate so that the stirring blade 404 also rotates.

[0033] In this embodiment, the rotating shaft 403 is driven to rotate by the motor 402, and the stirring blades 404 arranged on the periphery of the rotating shaft 403 also rotate, thereby achieving stirring of the industrial wastewater and drug mixture. Each stirring blade 404 has a certain angle with the horizontal plane, so that during the stirring process, the mixture of industrial wastewater and drugs is mixed more evenly, so that the two can fully react chemically to generate precipitation.

[0034] See also Figure 1 , Figure 5 The first purification box body 1 may include a first cover body 101 and a first accommodating chamber 102, the motor 402 is arranged on the side of the first cover body 101 away from the stirring blade 404, a first bearing seat 103 is arranged in the middle of the first cover body 101, and a first bearing 104 is arranged in the first bearing seat 103; the first accommodating chamber 102 is detachably connected to the first cover body 101, the rotating shaft 403 is located in the first accommodating chamber 102, and a second bearing seat 105 is arranged on the inner side of the first accommodating chamber 102 away from and facing the first bearing seat 103, and a second bearing 106 is arranged in the second bearing seat 105; one end of the rotating shaft 403 is fixed in the first bearing 104, and the other end of the rotating shaft 403 is fixed in the second bearing 106.

[0035] Specifically, the first cover 101 and the first receiving chamber 102 are connected by bolts, and a sealing gasket is provided between the first cover 101 and the first receiving chamber 102. When the mixed solution of industrial wastewater and medicine is stirred, the motor 402 drives the rotating shaft 403 to rotate. During the rotation, since the first bearing 104 is fixed to the first bearing seat 103, the second bearing 106 is fixed to the second bearing seat 105, and the two ends of the rotating shaft 403 are respectively matched with the first bearing 104 and the second bearing 106, the rotating shaft 403 can rotate normally under the drive of the motor 402.

[0036] In this embodiment, the two ends of the rotating shaft 403 are respectively fitted in the first bearing 104 and the second bearing 106 . When the motor 402 drives the rotating shaft 403 to rotate, no large resistance is generated, thereby ensuring the normal operation of the rotating shaft 403 .

[0037] See also Figure 1 The second purification box 2 may include a second cover 202 and a second receiving chamber 203 , wherein the exhaust mechanism 6 is connected to the second cover 202 ; the second receiving chamber 203 is detachably connected to the second cover 202 , and the heating mechanism 5 and the cooling mechanism 7 are both arranged in the second receiving chamber 203 .

[0038] Specifically, the second cover body 202 and the second receiving chamber 203 are connected by bolts, and a sealing gasket is provided between the second cover body 202 and the second receiving chamber 203 .

[0039] In this embodiment, the second cover 202 and the second receiving chamber 203 of the second purification box 2 are configured as detachable structures, so as to facilitate maintenance of the exhaust mechanism 6 , the heating mechanism 5 , and the cooling mechanism 7 provided in the second purification box 2 .

[0040] See also Figure 3 The heating mechanism 5 may include a heating plate 501, a heating wire and a wastewater storage box 502, wherein the heating wire is arranged on the heating plate 501; the wastewater storage box 502 is fixed on the heating plate 501, the wastewater storage box 502 is in contact with the heating wire, and the wastewater storage box 502 has an opening on the side away from the heating wire.

[0041] Specifically, when heating industrial wastewater, the power supply is turned on to power the heating wire, and the heating wire provides heat to the wastewater storage box 502. The industrial wastewater in the wastewater storage box 502 is heated to boiling and forms water vapor, and the exhaust mechanism 6 draws the water vapor into the cooling mechanism 7 for cooling.

[0042] In this embodiment, a heating plate 501 is provided, and a heating wire is provided on the heating plate 501. The heating wire heats and boils the industrial wastewater in the wastewater temporary storage box 502 to form water vapor, so that the entire heating mechanism 5 has a simple structure and is easy to implement.

[0043] See also Figure 3 The exhaust mechanism 6 may include an exhaust box 601 and an exhaust pipe 602, wherein the exhaust box 601 is fixed to the side of the second cover body 202 facing the wastewater temporary storage box 502; the exhaust pipe 602 is connected to the side of the exhaust box 601 facing the wastewater temporary storage box 502, and the end of the exhaust pipe 602 is funnel-shaped, and the end of the exhaust pipe 602 is directly opposite to the opening of the wastewater temporary storage box 502.

[0044] Specifically, the exhaust box 601 is started, and the water vapor generated by the heating mechanism 5 is extracted by the exhaust box 601 and enters the cooling mechanism 7 for cooling.

[0045] In this embodiment, the exhaust box 601 and the exhaust pipe 602 cooperate to collect the water vapor generated after heating by the heating mechanism 5 and transport it to the cooling mechanism 7, so that the water vapor flows into the cooling mechanism 7 in a directional manner, thereby purifying the industrial wastewater.

[0046] See also Figure 2 A filter mechanism 107 is disposed in the first receiving chamber 102 . The filter mechanism 107 is attached to the inner wall of the first receiving chamber 102 . The filter mechanism 107 is rotatably matched with the rotating shaft 403 .

[0047] Specifically, the filtering mechanism 107 is disposed at the bottom of the first containing chamber 102 . The arrangement of the filtering mechanism 107 cannot affect the rotation of the stirring blade 404 . In addition, the connecting pipe 3 is located outside the filtering mechanism 107 .

[0048] In this embodiment, the setting of the filtering mechanism 107 can filter the precipitate produced by the chemical reaction between industrial wastewater and drugs, so that the impurities are filtered into the filtering mechanism 107, and the industrial wastewater after precipitation treatment enters the next treatment process through the connecting pipe 3, so that the impurities in the industrial wastewater are completely removed.

[0049] See also Figure 4 The filtering mechanism 107 may include a matching ring 108 and a filter screen 109 , wherein the matching ring 108 is embedded in the first receiving chamber 102 and the edge is in contact with the inner wall of the first receiving chamber 102 ; the filter screen 109 is fixed to the matching ring 108 , and the volume of the filter screen 109 is smaller than the volume of the first receiving chamber 102 .

[0050] Specifically, the matching ring 108 is used to match with the first containing chamber 102, and the filter screen 109 is used to filter impurities in the industrial wastewater.

[0051] In this embodiment, by configuring the filter mechanism 107 to include a matching ring 108 and a filter screen 109, the matching ring 108 is used to match with the first receiving chamber 102, and the filter screen 109 is used to filter industrial waste water. The entire filter mechanism 107 has a simple structure and is easy to manufacture.

[0052] See also Figure 3 The cooling mechanism 7 may include a connecting frame 701 and a cooling box 702, wherein the connecting frame 701 is fixed to one side of the baffle 201; the cooling box 702 is fixed to the connecting frame 701, a condensation pipe 703 is arranged between the cooling box 702 and the exhaust box 601, and a water outlet pipe 704 is arranged at the outlet end of the cooling box 702.

[0053] Specifically, the air extraction mechanism 6 extracts the water vapor into the cooling mechanism 7 for cooling. The specific process is: the water vapor first enters the air extraction box 601, then enters the cooling box 702 through the condensation pipe 703, and forms liquid water after being cooled in the cooling box 702, and is discharged from the water outlet pipe 704.

[0054] In this embodiment, the water vapor is cooled by providing a cooling box 702, and liquid water is discharged. The cooling process is efficient and the cooling device is simple.

[0055] See also Figure 1 The connecting pipe 3 is connected with a water pump 301 for extracting industrial waste water.

[0056] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An industrial wastewater treatment device, characterized in that: include: A first purification box (1); A second purification box (2) is provided with a connecting pipe (3) between the second purification box (2) and the first purification box (1); a baffle (201) is provided inside the second purification box (2) along its height direction, and the baffle (201) divides the internal space of the second purification box (2) into a first cavity and a second cavity; A stirring mechanism (4) is arranged in the first purification box (1), and the stirring mechanism (4) has a degree of rotational freedom in the first purification box (1); A heating mechanism (5) is arranged in the first cavity; An exhaust mechanism (6) is disposed in the first cavity and directly faces the heating mechanism (5); A cooling mechanism (7) is arranged in the second cavity, and the cooling mechanism (7) is connected to the exhaust mechanism (6).

2. The industrial wastewater treatment device according to claim 1, characterized in that: The stirring mechanism (4) comprises: Motor seat (401); A motor (402) is fixed to the motor base (401), and the motor (402) has an output shaft; A rotating shaft (403) is fixed to the end of the output shaft of the motor (402) via a coupling, and the rotating shaft (403) is rotatably matched with the first purification box (1); A plurality of stirring blades (404) are arranged along the circumference of the rotating shaft (403); the inner diameter of the first purification box (1) is a, and the radial extension length of each stirring blade (404) in the first purification box (1) is b, then a>b.

3. The industrial wastewater treatment device according to claim 2, characterized in that: The first purification box (1) comprises: A first cover body (101), the motor (402) being arranged on a side of the first cover body (101) away from the stirring blade (404), a first bearing seat (103) being arranged in the middle of the first cover body (101), and a first bearing (104) being arranged in the first bearing seat (103); A first accommodating chamber (102) is detachably connected to the first cover body (101), the rotating shaft (403) is located in the first accommodating chamber (102), a second bearing seat (105) is arranged on the inner side of the first accommodating chamber (102) away from and directly facing the first bearing seat (103), and a second bearing (106) is arranged in the second bearing seat (105); One end of the rotating shaft (403) is fixed in the first bearing (104), and the other end of the rotating shaft (403) is fixed in the second bearing (106).

4. The industrial wastewater treatment device according to claim 1, characterized in that: The second purification box (2) comprises: A second cover body (202), wherein the air extraction mechanism (6) is connected to the second cover body (202); The second receiving chamber (203) is detachably connected to the second cover body (202), and the heating mechanism (5) and the cooling mechanism (7) are both arranged in the second receiving chamber (203).

5. The industrial wastewater treatment device according to claim 4, characterized in that: The heating mechanism (5) comprises: Heating plate (501); A heating wire, arranged on the heating plate (501); The wastewater temporary storage box (502) is fixed on the heating plate (501), the wastewater temporary storage box (502) is in contact with the heating wire, and the wastewater temporary storage box (502) has an opening on a side facing away from the heating wire.

6. The industrial wastewater treatment device according to claim 5, characterized in that: The air extraction mechanism (6) comprises: An exhaust box (601) is fixed to a side of the second cover (202) facing the wastewater temporary storage box (502); The exhaust pipe (602) is connected to the side of the exhaust box (601) facing the wastewater temporary storage box (502), and the end of the exhaust pipe (602) is funnel-shaped, and the end of the exhaust pipe (602) is directly facing the opening of the wastewater temporary storage box (502).

7. The industrial wastewater treatment device according to claim 3, characterized in that: A filter mechanism (107) is provided in the first receiving chamber (102); the filter mechanism (107) is attached to the inner wall of the first receiving chamber (102); and the filter mechanism (107) is rotatably matched with the rotating shaft (403).

8. The industrial wastewater treatment device according to claim 7, characterized in that: The filtering mechanism (107) comprises: A matching ring (108) is embedded in the first receiving chamber (102) and its edge is in contact with the inner wall of the first receiving chamber (102); A filter screen (109) is fixed to the matching ring (108), and the volume of the filter screen (109) is smaller than the volume of the first containing chamber (102).

9. The industrial wastewater treatment device according to claim 6, characterized in that: The cooling mechanism (7) comprises: A connecting frame (701) is fixed to one side of the baffle (201); A cooling box (702) is fixed to the connecting frame (701), a condensation pipe (703) is provided between the cooling box (702) and the exhaust box (601), and a water outlet pipe (704) is provided at the outlet end of the cooling box (702).

10. The industrial wastewater treatment device according to claim 1, characterized in that: The connecting pipe (3) is connected to a water pump (301).

Images