Alcohol-containing sewage pretreatment device

Abstract

The utility model discloses an alcohol-containing sewage pretreatment device, and belongs to the technical field of sewage treatment. The inverted sealing hopper is detachably connected to the top end of the pretreatment tank, a triangular block is mounted on the periphery of the sealing hopper, and a reaction tank is detachably connected to the top end of the triangular block; the reaction tank is arranged below the pretreatment tank, the top end of the reaction tank is connected with an adding combination, and the adding combination is used for adding reaction liquid for reacting methanol into the reaction tank and the reaction tank; the rotating motor is installed at the bottom end of the pretreatment pool, an output shaft of the rotating motor penetrates through the pretreatment pool and is connected with a rotating rod, a plurality of uniform stirring plates are welded to the periphery of the rotating rod, and a plurality of heat conduction rods located above the uniform stirring plates are connected to the vertical inner wall of the pretreatment pool; a plurality of heating pipes for heating are mounted on the inner bottom wall of the pretreatment tank and the periphery of the heat conducting rod. According to the alcohol-containing sewage pretreatment device, methanol can be heated and gasified, and the subsequent methanol treatment difficulty is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular to a pretreatment device for alcohol-containing wastewater. Background Technology

[0002] Methanol wastewater is a significant source of pollution. Existing methanol removal methods are mainly divided into chemical and physical methods. Chemical methods are not widely used due to their high cost and unsatisfactory treatment results. Physical methods generally employ distillation to obtain methanol usable in production from methanol wastewater of a certain concentration. However, the concentration of methanol used in production is subject to certain requirements. Single-method methanol treatment generally yields limited effectiveness.

[0003] A search revealed a Chinese patent document (authorization announcement number CN208545267U) describing an apparatus for treating low-concentration methanol wastewater, comprising: a second separation device and a recovery device. The second separation device includes a second tower body, a second spray pipe, a second exhaust pipe, a second drain pipe, and an air conveying device. The second drain pipe is connected to the bottom of the second tower body. The spray end of the second spray pipe is built into the second tower body and positioned between the air inlet end of the second exhaust pipe and the air outlet end of the air conveying device. The recovery device includes a third tower body, a third drain pipe, a packing layer, and a demister. The top of the third tower body has an exhaust port. The packing layer is built into the third tower body and divides the inner cavity of the third tower body into an upper cavity and a lower cavity arranged vertically. The demister is built into the upper cavity. The air outlet end of the second exhaust pipe is connected to the upper part of the lower cavity. The water inlet end of the third drain pipe is connected to the bottom of the lower cavity. Single-method methanol treatment generally yields mediocre results. Utility Model Content

[0004] The purpose of this invention is to provide an alcohol-containing wastewater pretreatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment device for alcohol-containing wastewater, comprising:

[0006] Pretreatment tank;

[0007] An inverted sealing hopper is detachably connected to the top of the pretreatment tank. A triangular block is installed on the outer periphery of the sealing hopper, and the top of the triangular block is detachably connected to the reaction tank.

[0008] The reaction chamber is located below the pretreatment tank. The top of the reaction chamber is connected to an additive assembly, which adds reaction liquid for the reaction of methanol to the reaction tank and the reaction chamber.

[0009] A rotary motor is installed at the bottom of the pretreatment tank. The output shaft of the rotary motor passes through the pretreatment tank and is connected to a rotating rod. Multiple stirring plates are welded to the outer periphery of the rotating rod. Multiple heat-conducting rods located above the stirring plates are connected to the vertical inner wall of the pretreatment tank. Multiple heating tubes for heating are installed on the inner bottom wall of the pretreatment tank and the outer periphery of the heat-conducting rods.

[0010] As a preferred embodiment, the bottom of the pretreatment tank is connected to a connecting pipe with a solenoid valve, and the connecting pipe is also connected to the reaction tank. Multiple support rods are connected between the reaction tank and the pretreatment tank.

[0011] As a preferred embodiment, the upper part of the pretreatment tank is also connected to an inlet pipe with a check valve, and the bottom of the reaction tank is also connected to an outlet pipe with a solenoid valve.

[0012] As a preferred embodiment, the top of the sealing hopper is connected to an inverted U-shaped vent pipe, and one end of the vent pipe is below the liquid surface of the reaction tank. The side of the reaction tank is connected to a drain pipe equipped with a solenoid valve.

[0013] As a preferred implementation, the added combination includes:

[0014] Vertical support plates are welded to the top of the reaction chamber;

[0015] Add a bucket, positioned on one side of the vertical support plate;

[0016] The bottom of the addition tank is connected to two addition pipes equipped with solenoid valves, and the two addition pipes are connected to the reaction tank and the reaction chamber, respectively.

[0017] As a preferred embodiment, the side of the vertical support plate is connected to multiple fixing clips for securing the addition bucket.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0019] This alcohol-containing wastewater pretreatment device has a heating tube that can heat the wastewater. Since the boiling point of methanol is lower than that of water, it will be pre-vaporized and flow out, reducing the pressure of subsequent treatment. The rotary motor drives the rotating rod and stirring plate to rotate, which improves the temperature uniformity of the wastewater and also improves the vaporization effect and efficiency.

[0020] This alcohol-containing wastewater pretreatment device has a reaction tank that receives wastewater that has been treated in the pretreatment tank. The treatment pressure is low, and the reaction tank can perform targeted methanol treatment. It can also use methanol extraction for recovery to meet different usage needs.

[0021] This alcohol-containing wastewater pretreatment device can heat and vaporize methanol, reducing the difficulty of subsequent methanol treatment. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0025] Figure 3 This is a cross-sectional view of the pretreatment tank and sealing hopper of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] In the picture:

[0028] 1. Pretreatment tank; 2. Sealed hopper; 3. Triangular block; 4. Reaction tank; 5. Reaction chamber; 6. Support rod; 7. Addition assembly; 8. Rotary motor; 9. Rotating rod; 10. Stirring plate; 11. Heat-conducting rod; 12. Heating tube; 13. Connecting pipe; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. Vent pipe; 17. Drain pipe;

[0029] 71. Vertical support plate; 72. Adding bucket; 73. Adding pipe; 74. Fixing clamp. Detailed Implementation

[0030] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0031] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0032] The connection method can adopt existing methods such as bonding, welding, bolting, etc., depending on the actual needs. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail. However, where appropriate, the techniques, methods and equipment should be regarded as part of the specification. The proportions of the components in the drawings are for reference only and can be adjusted to a certain extent according to the actual use.

[0033] Please see Figures 1 to 3 As shown, an alcohol-containing wastewater pretreatment device, in this embodiment, includes:

[0034] Pretreatment pool 1;

[0035] An inverted sealing hopper 2 is detachably connected to the top of the pretreatment tank 1. A triangular block 3 is installed on the outer periphery of the sealing hopper 2, and a reaction tank 4 is detachably connected to the top of the triangular block 3.

[0036] The reaction chamber 5 is located below the pretreatment tank 1. The top of the reaction chamber 5 is connected to the addition assembly 7, which adds the reaction liquid for the reaction of methanol to the reaction tank 4 and the reaction chamber 5.

[0037] A rotary motor 8 is installed at the bottom of the pretreatment tank 1. The output shaft of the rotary motor 8 passes through the pretreatment tank 1 and is connected to a rotating rod 9. Multiple stirring plates 10 are welded to the outer periphery of the rotating rod 9. Multiple heat-conducting rods 11 are connected to the vertical inner wall of the pretreatment tank 1 and are positioned above the stirring plates 10. Multiple heating tubes 12 for heating are installed on the inner bottom wall of the pretreatment tank 1 and the outer periphery of the heat-conducting rods 11. A thermometer is installed on the inner wall of the pretreatment tank 1 to prevent the temperature of the wastewater from exceeding 80 degrees Celsius. The vaporization temperature of methanol is 67 degrees Celsius. When the heating tubes 12 and the rotary motor 8 are turned on, the heating tubes 12 heat the alcohol-containing wastewater. Since the boiling point of methanol is lower than that of water, it will pre-vaporize and flow out. The rotary motor 8 drives the rotating rod 9 and the stirring plates 10 to rotate, improving the temperature uniformity of the wastewater and also improving the vaporization effect and efficiency.

[0038] The bottom of the pretreatment tank 1 is connected to a connecting pipe 13 with a solenoid valve. The connecting pipe 13 is also connected to the reaction tank 5. After the pretreatment is completed, the solenoid valve of the connecting pipe 13 is opened, and the sewage in the pretreatment tank 1 falls into the reaction tank 5 by gravity and reacts with the reaction liquid in the reaction tank 5. Multiple support rods 6 are connected between the reaction tank 5 and the pretreatment tank 1. The upper part of the pretreatment tank 1 is also connected to an inlet pipe 14 with a check valve. The alcohol-containing sewage to be treated is introduced into the pretreatment tank 1 through the inlet pipe 14. The check valve can ensure that the gas will not flow out from the inlet pipe 14. The bottom of the reaction tank 5 is also connected to an outlet pipe 15 with a solenoid valve.

[0039] The top of the sealed hopper 2 is connected to an inverted U-shaped vent pipe 16, and one end of the vent pipe 16 is below the liquid surface of the reaction tank 4. The side of the reaction tank 4 is connected to a drain pipe 17 with a solenoid valve. Due to the pressure, the vaporized methanol enters the reaction tank 4 through the vent pipe 16 and reacts with the reaction liquid in the reaction tank 4.

[0040] Adding combination 7 includes:

[0041] Vertical support plate 71 is welded to the top of reaction chamber 5;

[0042] Add a bucket 72, which is set on one side of the vertical support plate 71;

[0043] The bottom of the addition tank 72 is connected to two addition pipes 73 with solenoid valves. The two addition pipes 73 are connected to the reaction tank 4 and the reaction chamber 5 respectively. When the solenoid valves of the two addition pipes 73 are opened, the reaction liquid is introduced into the reaction tank 4 and the reaction chamber 5 respectively. The side of the vertical support plate 71 is connected to multiple fixing clips 74 for fixing the addition tank 72.

[0044] The rotary motor 8, heating tube 12, and solenoid valve are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the problem solved by this application, so they will not be described in detail. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0045] Working principle

[0046] The alcohol-containing wastewater pretreatment device introduces the alcohol-containing wastewater to be treated into the pretreatment tank 1 through the inlet pipe 14. The solenoid valves of the two addition pipes 73 are opened to introduce reaction liquid into the reaction tank 4 and reaction chamber 5 respectively. The heating pipe 12 and the rotary motor 8 are turned on. The heating pipe 12 heats the alcohol-containing wastewater. Since the boiling point of methanol is lower than that of water, it will pre-vaporize and flow out. The rotary motor 8 drives the rotating rod 9 and the stirring plate 10 to rotate, improving the temperature uniformity of the wastewater and also improving the vaporization effect and efficiency. Due to the air pressure, the vaporized methanol enters the reaction tank 4 through the vent pipe 16 and reacts with the reaction liquid in the reaction tank 4. After pretreatment, the solenoid valve of the connecting pipe 13 is opened, and the wastewater in the pretreatment tank 1 falls into the reaction chamber 5 by gravity to react with the reaction liquid in the reaction chamber 5.

[0047] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pretreatment device for alcohol-containing wastewater, characterized in that, include: Pretreatment tank (1); An inverted sealing hopper (2) is detachably connected to the top of a pretreatment tank (1). A triangular block (3) is installed on the outer periphery of the sealing hopper (2), and a reaction tank (4) is detachably connected to the top of the triangular block (3). The reaction chamber (5) is located below the pretreatment tank (1). The top of the reaction chamber (5) is connected to the addition assembly (7), which adds the reaction liquid for the reaction of methanol to the reaction tank (4) and the reaction chamber (5). A rotary motor (8) is installed at the bottom of the pretreatment tank (1). The output shaft of the rotary motor (8) passes through the pretreatment tank (1) and is connected to a rotating rod (9). Multiple stirring plates (10) are welded to the outer periphery of the rotating rod (9). Multiple heat-conducting rods (11) located above the stirring plates (10) are connected to the vertical inner wall of the pretreatment tank (1). Multiple heating tubes (12) for heating are installed on the inner bottom wall of the pretreatment tank (1) and the outer periphery of the heat-conducting rods (11).

2. The alcohol-containing wastewater pretreatment device according to claim 1, characterized in that, The bottom end of the pretreatment tank (1) is connected to a connecting pipe (13) with a solenoid valve. The connecting pipe (13) is also connected to the reaction tank (5). Multiple support rods (6) are connected between the reaction tank (5) and the pretreatment tank (1).

3. The alcohol-containing wastewater pretreatment device according to claim 2, characterized in that, The upper part of the pretreatment tank (1) is also connected to an inlet pipe (14) with a check valve, and the bottom end of the reaction tank (5) is also connected to an outlet pipe (15) with a solenoid valve.

4. The alcohol-containing wastewater pretreatment device according to claim 1, characterized in that, The top of the sealing hopper (2) is connected to an inverted U-shaped vent pipe (16), and one end of the vent pipe (16) is below the liquid surface of the reaction tank (4). The side of the reaction tank (4) is connected to a drain pipe (17) with a solenoid valve.

5. The alcohol-containing wastewater pretreatment device according to claim 1, characterized in that, The added combination (7) includes: Vertical support plate (71) is welded to the top of the reaction chamber (5); Add a bucket (72) and set it on one side of the vertical support plate (71); The bottom of the addition tank (72) is connected to two addition pipes (73) with solenoid valves, and the two addition pipes (73) are connected to the reaction pool (4) and the reaction chamber (5) respectively.

6. The alcohol-containing wastewater pretreatment device according to claim 5, characterized in that, The side of the vertical support plate (71) is connected to a plurality of fixing clips (74) for fixing the adding bucket (72).

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