Chemical wastewater treatment evaporator

Abstract

The utility model relates to the technical field of evaporators, in particular to a chemical wastewater treatment evaporator, which adopts the technical scheme that the chemical wastewater treatment evaporator comprises an evaporator body, a sealing cover is fixedly mounted at the top of the evaporator body, a reserved groove is formed in the outer wall of the evaporator body, a feeding mechanism penetrates through the reserved groove, the feeding mechanism comprises a material conveying pipe, and the material conveying pipe is connected with the sealing cover. An auger is rotatably mounted in the material conveying pipe, a hole is formed in the material conveying pipe on the outer side of the evaporator body, a feeding hopper and a discharging groove are formed in the material conveying pipe on the outer side of the evaporator body in a communicating mode, and draining holes are formed in the lower end face of the material conveying pipe on the inner side of the evaporator body. According to the utility model, wastewater containing high-concentration solid impurities can be effectively treated, difficulty in wastewater filling caused by blockage of the impurities is avoided, and meanwhile, due to the design, not only is the wastewater treatment efficiency improved, but also the maintenance cost is reduced, and frequent cleaning and maintenance work required by blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to an evaporator for treating chemical wastewater. Background Art

[0002] Wastewater evaporators are specialized equipment designed to treat solutions that crystallize during the evaporation process. They are widely used in a variety of industries, including chemical processing, metallurgy, and pickling wastewater treatment in large steel mills, as well as wet desulfurization wastewater treatment in power plants. To address the characteristics of chemical organic wastewater, such as high salinity and high concentrations, wastewater evaporators utilize the principles of evaporation, concentration, and crystallization to treat this wastewater. This method effectively reduces wastewater volume, recovers valuable substances, and reduces environmental pollution.

[0003] After extensive searching, the publication number CN218810526U was found, which disclosed a wastewater treatment evaporator, in which large impurities in the wastewater are filtered through a filter plate. After being filtered through the filter plate, the wastewater flows into the evaporator body through the first discharge port, and then the motor and heating rod are turned on to heat and evaporate.

[0004] When the device in the existing technology is in use, although it can filter large impurities in the wastewater through the filter plate, when there are too many impurities, the impurities will accumulate on the top of the filter plate, thereby causing subsequent wastewater injection to be blocked. Therefore, a chemical wastewater treatment evaporator is needed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide an evaporator for treating chemical wastewater, which has the advantage of avoiding blockage caused by a large amount of impurities during the primary filtration treatment of the wastewater, thereby preventing the filling of wastewater from being blocked, and solving the problem that the filtered impurities make the filling of wastewater difficult and cause blockage.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chemical wastewater treatment evaporator, comprising an evaporator body, a sealing cover fixedly installed on the top of the evaporator body, a reserved groove provided on the outer wall of the evaporator body, a feeding mechanism passing through the reserved groove, the feeding mechanism comprising a feeding pipe, a auger rotatably installed in the feeding pipe, a hole opened on the feeding pipe outside the evaporator body and connected to and installed with a feed hopper and a discharge trough, and a drainage hole provided on the lower end surface of the feeding pipe inside the evaporator body.

[0007] Preferably, the evaporator body has a spiral heating tube wrapped around and welded to its outer wall. A discharge pipe is installed through a hole in the bottom of the evaporator body, and a support frame is fixed to the bottom of the evaporator body. This design, in which the spiral heating tube is wrapped around and welded to the outer wall of the evaporator body, provides uniform heat distribution, thereby improving evaporation efficiency. A discharge pipe is provided on one side of the bottom of the evaporator body for discharging processed crystals, while the support frame ensures the stability and structural strength of the evaporator.

[0008] Preferably, a mounting bracket is welded to the upper end of the sealing cover, to which the drive motor is fixedly mounted, and a limit bracket is fixedly mounted on the lower end of the sealing cover. The sealing cover is threadedly connected to the top of the evaporator body. In this design, the mounting bracket is welded to the upper end of the sealing cover, to which the drive motor is fixed, and the limit bracket is fixed on the lower end of the sealing cover. The sealing cover and the evaporator body are connected by threads, ensuring a tight seal and easy disassembly.

[0009] Preferably, the bottom end of the drive motor passes through the mounting frame and the sealing cover and is driven by a transmission rod. The bottom end of the transmission rod passes through the limit frame and is rotatably connected to the limit frame via a bearing. The bottom end of the transmission rod is fixedly mounted to the stirring frame. In this design, the bottom end of the drive motor is connected to the limit frame via the transmission rod and is rotatably connected to the limit frame via a bearing. The stirring frame is fixed to the bottom end of the transmission rod. This design ensures stable rotation of the stirring frame and improves mixing efficiency.

[0010] Preferably, the stirring frame is provided with a bearing at the bottom end, and the bearing at the bottom end of the stirring frame is embedded in the inner bottom of the evaporator body. In the design, the stirring frame is provided with a bearing at the bottom end, and is embedded in the inner bottom of the evaporator body. This design enables the stirring frame to operate smoothly and reduces friction and wear.

[0011] Preferably, the upper end of the feed pipe is parallel to the upper end of the evaporator body, and there are two feed pipes, one on either side of the drive rod. In this design, the upper end of the feed pipe is parallel to the upper end of the evaporator body, and the two feed pipes are located on either side of the drive rod. This symmetrical design provides balanced material delivery and ensures even distribution of wastewater.

[0012] Preferably, the feed hopper and discharge chute are connected and mounted on the upper and lower ends of the feed pipe, respectively, with the feed hopper opening larger than the discharge chute opening. In this design, the feed hopper and discharge chute are mounted on the upper and lower ends of the feed pipe, respectively, with the feed hopper opening larger than the discharge chute. This design facilitates the smooth inflow of wastewater and the discharge of solid impurities.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The feed pipe in this utility model features a rotating auger, a spiral-shaped device that provides initial stirring and squeezing of wastewater as it passes through it. The auger's rotation helps prevent the accumulation of solid impurities within the pipe, thereby avoiding blockages caused by impurity accumulation. A drain hole is provided on the lower end of the pipe, allowing the liquid portion of the wastewater to flow into the evaporator body through the drain hole, while the solid impurities remain within the pipe. This design achieves preliminary solid-liquid separation, reducing the amount of solid impurities entering the evaporator body and thus minimizing the risk of blockage. Wastewater flows into the feed pipe through the feed hopper, while solid impurities are discharged through the discharge chute. The feed hopper's opening is larger than the discharge chute, facilitating smooth wastewater flow and effectively discharging solid impurities, thus preventing obstruction of wastewater injection caused by excessive impurities. Through these designs, the evaporator can effectively treat wastewater containing high concentrations of solid impurities and avoid the difficulties associated with wastewater filling caused by impurity blockage. This design not only improves the efficiency of wastewater treatment, but also reduces maintenance costs because it reduces the need for frequent cleaning and repair work due to blockages. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the evaporator body of the present utility model;

[0017] Figure 3 This is a schematic diagram of the feeding mechanism structure of the present utility model;

[0018] Figure 4 This is a schematic diagram of the sealing cover connection structure of the present invention.

[0019] In the figure: 1. Evaporator body; 11. Reserved groove; 12. Heating tube; 13. Support frame; 14. Discharge pipe; 2. Feeding mechanism; 21. Conveying pipe; 211. Drain hole; 22. Feed hopper; 23. Discharge chute; 3. Sealing cover; 31. Mounting frame; 311. Drive motor; 312. Transmission rod; 313. Stirring frame; 32. Limiting frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model provides an embodiment: a chemical wastewater treatment evaporator, comprising an evaporator body 1, a sealing cover 3 fixedly installed on the top of the evaporator body 1, a reserved groove 11 is provided on the outer wall of the evaporator body 1, a feeding mechanism 2 passes through the reserved groove 11, the feeding mechanism 2 comprises a feeding pipe 21, a auger is rotatably installed in the feeding pipe 21, a hole is opened on the feeding pipe 21 outside the evaporator body 1 and is connected to a feed hopper 22 and a discharge trough 23, and a drainage hole 211 is provided on the lower end surface of the feeding pipe 21 inside the evaporator body 1.

[0023] Specifically, a spiral-shaped auger is installed in the feed pipe 21, which provides preliminary stirring and squeezing of the wastewater as it passes through it. The rotation of the auger helps prevent solid impurities from accumulating in the feed pipe 21, thereby avoiding blockage caused by impurity accumulation. A drain hole 211 is provided on the lower end surface of the feed pipe 21, allowing the liquid portion of the wastewater to flow into the evaporator body 1 through the drain hole 211, while the solid impurities remain in the feed pipe 21. This design achieves preliminary solid-liquid separation, reducing the amount of solid impurities entering the evaporator body 1 and thus reducing the risk of blockage. Wastewater flows into the feed pipe 21 through the feed hopper 22, while solid impurities are discharged through the discharge chute 23. The opening of the feed hopper 22 is larger than that of the discharge chute 23. This design facilitates smooth wastewater inflow and effectively discharges solid impurities, avoiding obstruction of wastewater injection caused by excessive impurities. Through these designs, the evaporator can effectively treat wastewater containing high concentrations of solid impurities and avoid the difficulty of wastewater filling caused by impurity blockage. This design not only improves the efficiency of wastewater treatment, but also reduces maintenance costs because it reduces the need for frequent cleaning and repair work due to blockages.

[0024] Example 2

[0025] In order to improve the evaporation efficiency, Figure 2 and Figure 4 As shown, in this embodiment, a spiral heating tube 12 is wound and welded around the outer wall of the evaporator body 1. A discharge pipe 14 is installed and connected to a hole on one side of the bottom of the evaporator body 1. A support frame 13 is fixed to the bottom of the evaporator body 1. The design of the spiral heating tube 12 wound and welded around the outer wall of the evaporator body 1 provides uniform heat distribution, thereby improving evaporation efficiency. A discharge pipe 14 is provided on one side of the bottom of the evaporator body 1 for discharging processed crystals, while the support frame 13 at the bottom ensures the stability and structural strength of the evaporator.

[0026] Furthermore, a mounting bracket 31 is welded to the upper end of the sealing cover 3. A drive motor 311 is fixedly mounted on the upper end of the mounting bracket 31. A limit bracket 32 ​​is fixedly mounted on the lower end of the sealing cover 3. The sealing cover 3 is threadedly connected to the top of the evaporator body 1. In this design, the mounting bracket 31 is welded to the upper end of the sealing cover 3. The drive motor 311 is fixed to the mounting bracket 31, while the limit bracket 32 ​​is fixed to the lower end of the sealing cover 3. The threaded connection between the sealing cover 3 and the evaporator body 1 ensures a tight seal and facilitates disassembly.

[0027] Furthermore, the bottom end of the drive motor 311 passes through the mounting frame 31 and the sealing cover 3 and is driven by a transmission rod 312. The bottom end of the transmission rod 312 passes through the limiting frame 32 and is rotatably connected to the limiting frame 32 via a bearing. The bottom end of the transmission rod 312 is fixedly mounted to the stirring frame 313. In this design, the bottom end of the drive motor 311 is connected to the limiting frame 32 via the transmission rod 312 and is rotatably connected to the limiting frame 32 via a bearing. The bottom end of the transmission rod 312 is fixed to the stirring frame 313. This design ensures stable rotation of the stirring frame 313 and improves mixing efficiency.

[0028] Furthermore, a bearing is provided at the bottom end of the stirring frame 313, and the bearing at the bottom end of the stirring frame 313 is embedded in the bottom inner side of the evaporator body 1. In the design, the stirring frame 313 is provided with a bearing at the bottom end and embedded in the bottom inner side of the evaporator body 1. This design enables the stirring frame 313 to operate smoothly and reduces friction and wear.

[0029] Example 3

[0030] In order to improve the efficiency of wastewater injection, such as Figure 1 and Figure 3 As shown, in this embodiment, the upper end surface of the feed pipe 21 is parallel to the upper end surface of the evaporator body 1. There are two feed pipes 21, one on each side of the transmission rod 312. In this design, the upper end surface of the feed pipe 21 is parallel to the upper end surface of the evaporator body 1, and the two feed pipes 21 are located on either side of the transmission rod 312. This symmetrical design provides balanced material transportation and ensures uniform distribution of wastewater.

[0031] Furthermore, the feed hopper 22 and the discharge chute 23 are connected and mounted on the upper and lower ends of the conveying pipe 21, respectively, and the opening of the feed hopper 22 is larger than the opening of the discharge chute 23. In the design, the feed hopper 22 and the discharge chute 23 are mounted on the upper and lower ends of the conveying pipe 21, respectively, and the opening of the feed hopper 22 is larger than the opening of the discharge chute 23. This design facilitates the smooth inflow of wastewater and the discharge of solid impurities.

[0032] When the present invention is used, the chemical wastewater to be treated is introduced into the feed hopper 22, and the wastewater flows into the delivery pipe 21 through the feed hopper 22. Since the lower end surface of the delivery pipe 21 is provided with a drain hole 211, the wastewater can achieve preliminary solid-liquid separation during the transportation process, and the solid impurities are separated and remain in the delivery pipe 21. At this time, the auger in the delivery pipe 21 starts to rotate, and the solid impurities are discharged from the discharge trough 23. The drive motor 311 is started, and the drive motor 311 causes the stirring frame 313 to stir inside the evaporator body 1 through the transmission rod 312. The spiral heating tube 12 starts to heat and evaporates and concentrates the wastewater. The gas generated by evaporation is discharged through the drain hole 211 and the delivery pipe 21. The solid crystals remaining after evaporation can be discharged by opening the discharge pipe 14. After the wastewater treatment is completed, the evaporator body 1 is cleaned to remove any remaining crystals or impurities, and all moving parts are maintained, such as adding lubricating oil and checking for wear.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A chemical wastewater treatment evaporator, comprising an evaporator body (1), a sealing cover (3) fixedly mounted on the top of the evaporator body (1), a reserved groove (11) formed on the outer wall of the evaporator body (1), a feeding mechanism (2) passing through the reserved groove (11), and characterized in that: The feeding mechanism (2) comprises a feeding pipe (21), a hinged dragon is rotatably installed in the feeding pipe (21), a hole is opened on the feeding pipe (21) outside the evaporator body (1) and a feeding hopper (22) and a discharge trough (23) are connected and installed, and a drainage hole (211) is opened on the lower end surface of the feeding pipe (21) inside the evaporator body (1).

2. A chemical wastewater treatment evaporator according to claim 1, characterized in that, A spiral heating tube (12) is wound around and welded to the outer wall of the evaporator body (1); a hole is opened on one side of the bottom of the evaporator body (1) and connected to a discharge pipe (14); and a support frame (13) is fixedly installed on the bottom of the evaporator body (1).

3. The chemical wastewater treatment evaporator according to claim 1, characterized in that: A mounting frame (31) is welded to the upper end surface of the sealing cover (3), a driving motor (311) is fixedly mounted to the upper end surface of the mounting frame (31), a limiting frame (32) is fixedly mounted to the lower end surface of the sealing cover (3), and the sealing cover (3) is threadedly connected to the top of the evaporator body (1).

4. The chemical wastewater treatment evaporator according to claim 3, characterized in that: The bottom end of the driving motor (311) passes through the mounting frame (31) and the sealing cover (3) and is driven by a transmission rod (312); the bottom end of the transmission rod (312) passes through the limiting frame (32) and is rotatably connected to the limiting frame (32) via a bearing; and the bottom end of the transmission rod (312) is fixedly mounted with a stirring frame (313).

5. The chemical wastewater treatment evaporator according to claim 4, characterized in that: A bearing is provided at the bottom end of the stirring frame (313), and the bearing at the bottom end of the stirring frame (313) is embedded and installed at the bottom inner side of the evaporator body (1).

6. The chemical wastewater treatment evaporator according to claim 1, characterized in that: The upper end surface of the material delivery pipe (21) is parallel to the upper end surface of the evaporator body (1). There are two material delivery pipes (21), and the two material delivery pipes (21) are respectively located on both sides of the transmission rod (312).

7. The chemical wastewater treatment evaporator according to claim 1, characterized in that: The feed hopper (22) and the discharge trough (23) are connected and installed on the upper end surface and the lower end surface of the conveying pipe (21) respectively. The opening size of the feed hopper (22) is larger than the opening size of the discharge trough (23).

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