Acrylic resin production wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses an acrylic resin production wastewater treatment device which comprises a machine body, a rotating shaft with a hollow structure is rotatably arranged at the bottom of the machine body, and an upper filter screen and a lower filter screen which are movably sleeved at the top of the rotating shaft and are of inverted conical structures are sequentially arranged at the top of the machine body from top to bottom; a plurality of stirring rods are arranged on the outer surface of the rotating shaft and below the lower filter screen; the bottom end of the rotating shaft penetrates through the bottom of the machine body, a second bevel gear is fixed to the end of the rotating shaft, a lower shell is arranged at the bottom of the machine body, a motor is fixed to the bottom of the lower shell, a motor shaft of the motor upwards penetrates into the lower shell and is fixedly provided with a first bevel gear, the first bevel gear is connected with the second bevel gear in a meshed mode, and one side of the lower shell is connected with an air pump through an air pipe. The sucking pump is connected with the bottom of a waste gas treater arranged on the outer side wall of the machine body; an exhaust pipe is arranged at the top of the waste gas treater. According to the utility model, waste water impurities are finely filtered, and waste gas is generated from waste water, so that collection and treatment are realized.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment device for acrylic resin production. Background Technology

[0002] In the chemical industry, the production process of acrylic resin generates a large amount of wastewater containing various complex organic matter, suspended solids, and other pollutants, along with waste gas containing harmful components such as volatile organic compounds (VOCs). If this wastewater and waste gas are discharged directly without effective treatment, it will not only cause serious pollution to the soil, water bodies, and atmospheric environment, but may also endanger human health and the balance of the ecosystem.

[0003] The causes of waste gas generation are complex. On the one hand, during the operation of wastewater treatment equipment, as the temperature rises, during stirring, or due to contact between wastewater and air, harmful substances in the wastewater will rapidly volatilize into the space at the top of the equipment, forming waste gas. On the other hand, chemical substances in the wastewater may react with the added wastewater treatment agents, generating waste gas. In addition, if the treatment process involves a biological treatment stage, anaerobic microorganisms will generate waste gas by fermenting and decomposing organic matter.

[0004] Currently, traditional filtration methods (such as sand filtration, bag filtration, and bar filtration) are often insufficient to efficiently remove fine impurities from acrylic resin production wastewater. This leads to interference with the reaction process when wastewater treatment agents are added (e.g., impurities may adsorb the treatment agent or undergo side reactions), reducing treatment efficiency and quality. Regarding waste gas treatment, direct incineration is typically used, which consumes significant amounts of energy and produces substantial amounts of greenhouse gases such as carbon dioxide, which is detrimental to environmental protection. Therefore, there is an urgent need for acrylic resin production wastewater treatment equipment to enhance the wastewater treatment reaction effect and, simultaneously, collect and treat the complex characteristics of the waste gas generated by the wastewater to meet increasingly stringent environmental requirements and industrial production needs. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an acrylic resin production wastewater treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an acrylic resin production wastewater treatment device, comprising a body, an inlet pipe at the top of the body, and a drain pipe on one side of the bottom of the body; a hollow rotating shaft is rotatably mounted at the bottom of the body; an upper filter screen and a lower filter screen of an inverted conical structure are sequentially mounted on the top of the rotating shaft from top to bottom at the top of the body; multiple stirring rods are arranged on the outer surface of the rotating shaft below the lower filter screen; the bottom end of the rotating shaft penetrates through the bottom of the body and a bevel gear two is fixed at its end; a lower housing is provided at the bottom of the body, and a motor is fixed at the bottom of the lower housing; the motor shaft of the motor penetrates upward into the lower housing and a bevel gear one is fixed thereon; the bevel gear one and the bevel gear two are meshed and connected; an air pump is connected to one side of the lower housing through a duct; the air pump is connected to the bottom of a waste gas processor located on the outer wall of the body; and an exhaust pipe is provided at the top of the waste gas processor.

[0007] Furthermore, a dosing tube is connected to the side wall of the machine body below the lower filter screen.

[0008] Furthermore, the exhaust gas processor is equipped with a molecular sieve filter, a HEPA filter, an alkaline filter, and a nano-titanium dioxide photocatalytic filter arranged sequentially from bottom to top inside.

[0009] Furthermore, a ring-shaped light source is provided on top of the nano-titanium dioxide photocatalytic filter.

[0010] Furthermore, the bottom of the exhaust gas processor has a conical structure, and a drain pipe is connected to the center of the bottom.

[0011] Furthermore, an upper row of brushes and a lower row of brushes are respectively installed on the rotating shaft. The upper row of brushes is positioned on the surface of the upper filter screen, and the lower row of brushes is located on the surface of the lower filter screen.

[0012] Furthermore, the rotating shaft is provided with a T-shaped slot one and a slot two; the inner ends of the upper and lower brushes are respectively provided with a plug block one and a plug block two that are adapted to and inserted into slot one and slot two.

[0013] Furthermore, the top sidewall of the machine body is provided with an upper baffle ring and a lower baffle ring from top to bottom, and the edges of the upper filter screen and the lower filter screen are respectively installed on the top of the upper baffle ring and the lower baffle ring.

[0014] Beneficial effects

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] 1. Wastewater enters the machine through the inlet pipe and passes through the upper and lower filters to remove impurities. The coarse filter removes larger suspended and floating particles, while the fine filter further reduces the impurity content, providing a purer water environment for the subsequent addition of wastewater treatment agents, reducing interference from impurities and improving treatment efficiency.

[0017] 2. The wastewater treatment agent is introduced into the device through the dosing pipe and reacts with the wastewater. The motor rotates and drives the stirring rod to rotate, stirring the wastewater and ensuring that the wastewater and wastewater treatment agent react fully, thereby enhancing the wastewater treatment effect.

[0018] 3. The air pump works to draw the waste gas generated from wastewater treatment through the hollow part of the rotating shaft, and then through the air pipe into the waste gas processor for treatment. The treated waste gas is discharged through the exhaust pipe, which is beneficial to environmental protection.

[0019] 4. When the shaft rotates, it drives the stirring rod to rotate, and at the same time drives the upper and lower brushes to rotate, which cleans the impurities and particles on the surface of the upper and lower filter screens respectively, preventing the accumulation of impurities from clogging the filter screen mesh and maintaining the filter screen's good air permeability and filtration efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 3 This utility model Figure 2 A partially enlarged structural diagram.

[0023] Figure 4 This is a schematic diagram of the connection structure between the rotating shaft and the upper and lower brushes of this utility model.

[0024] The diagram is labeled as follows: 1-Main body; 2-Viewing window; 3-Dosing pipe; 4-Water inlet pipe; 5-Exhaust gas processor; 6-Exhaust pipe; 7-Drain pipe; 8-Lower shell; 9-Air pump; 10-Drain pipe; 11-Air pipe; 12-Motor; 13-Shaft; 14-Stirring rod; 15-Upper filter screen; 16-Lower filter screen; 17-Upper baffle ring; 18-Lower baffle ring; 19-Upper brush; 20-Lower brush; 21-Bevel gear one; 22-Bevel gear two; 23-Upper handle; 24-Lower handle; 25-Slot one; 26-Slot two; 27-Insertion block one; 28-Insertion block two; 29-Molecular sieve filter screen; 30-HEPA filter screen; 31-Alkaline filter screen; 32-Nano titanium dioxide photocatalytic filter screen; 33-Light source; 34-Sealing ring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See Figures 1-4 This embodiment provides an acrylic resin production wastewater treatment device, including a body 1. A water inlet pipe 3 is provided at the top of the body 1, and a drain pipe 7 is provided on one side of the bottom of the body 1. A hollow rotating shaft 13 is rotatably mounted at the bottom of the body 1. The bottom end of the rotating shaft 13 penetrates the bottom of the body 1, and a second bevel gear 22 is fixed at its end. A lower housing 8 is provided at the bottom of the body 1, and a motor 12 is fixed at the bottom of the lower housing 8. The motor shaft 12 extends upwards into the lower housing 8 and a first bevel gear 21 is fixed thereto. The first bevel gear 21 and the second bevel gear 22 are meshed together. Multiple stirring rods 14 are provided on the outer surface of the rotating shaft 13.

[0029] The top sidewall of the machine body 1 is provided with an upper baffle ring 17 and a lower baffle ring 18 from top to bottom, with the inner circumferential diameter of the upper baffle ring 17 being larger than that of the lower baffle ring 18. The top of the machine body 1 is provided with an upper filter screen 15 and a lower filter screen 16, both inverted conical in shape, movably fitted onto the top of the rotating shaft 13. The outer circumferential diameter of the top of the lower filter screen 16 is smaller than that of the inner circumferential diameter of the upper baffle ring 17. The upper filter screen 15 is a coarse filter screen, made of materials such as stainless steel wire mesh or polypropylene fiber, used to intercept larger suspended solids and floating matter in wastewater. The lower filter screen 16 is a precision filter screen, made of high-performance materials such as polyvinylidene fluoride (PVDF) and polyethersulfone (PES), used to remove fine suspended solids, colloidal particles, and some large organic molecules from wastewater. The tops of the upper filter screen 15 and the lower filter screen 16 are respectively installed on the top edges of the upper baffle ring 17 and the lower baffle ring 18. Specifically, the tops of the upper filter screen 15 and the lower filter screen 16 are locked to the upper baffle ring 17 and the lower baffle ring 18 by bolts. The stirring rod 14 is located below the lower filter screen 16. A dosing pipe is connected to the side wall of the machine body below the lower filter screen. The upper filter screen 15 and the lower filter screen 16 are fitted into the inner wall of the through hole of the rotating shaft and a sealing ring 34 is provided to ensure that the upper filter screen 15 and the lower filter screen 16 are in close contact with the rotating shaft 13. To replace or clean the upper filter screen 15 and the lower filter screen 16, open the cover on the top of the machine body, then release the lock between the upper filter screen 15 and the upper baffle ring, remove the upper filter screen 15, and then release the lock between the lower filter screen 15 and the lower baffle ring, remove the lower filter screen 16. The top edge of the upper filter screen 15 is provided with multiple upper handles 23, and the top edge of the lower filter screen 16 is provided with multiple lower handles 24, making it easy to remove the upper filter screen 15 or the lower filter screen 16.

[0030] An upper brush 19 and a lower brush 20 are respectively mounted on the rotating shaft 13. The upper brush 19 is positioned on the surface of the upper filter screen 15, and the lower brush 20 is positioned on the surface of the lower filter screen 16. The rotating shaft 13 is provided with a T-shaped slot 1 25 and a slot 26. A first insertion block 27 is provided at the inner end of the upper brush 19, and a second insertion block 28 is provided at the inner end of the lower brush 20. The first insertion block 27 is fitted into the slot 1 25, and the second insertion block 28 is fitted into the slot 26. Magnets are provided at the bottom of the slots 1 25 and 26, and magnets are provided at the bottom of the insertion blocks 1 27 and 28. When insert block 27 is inserted into slot 25, based on the magnetic principle of opposite poles attracting each other, the magnets of both generate a magnetic force that firmly attaches insert block 27 to the bottom of slot 25, thus achieving a quick, convenient, and stable magnetic connection, facilitating subsequent maintenance and disassembly of the lower brush 20. Similarly, when insert block 28 is inserted into slot 26, the two are magnetically connected. When the shaft rotates, it drives the upper brush 19 and lower brush 20 to rotate, respectively cleaning impurities and particles from the surfaces of the upper filter screen 15 and lower filter screen 16, preventing impurities from accumulating and clogging the filter screen mesh, and maintaining good air permeability and filtration efficiency of the filter screen.

[0031] A suction pump 9 is connected to one side of the lower housing 8 via a duct 11. The suction pump 9 is connected to the bottom of the exhaust gas processor 5, which is located on the outer wall of the housing 1, via the duct 11. An exhaust pipe 6 is provided on the top of the exhaust gas processor 5. In this embodiment, the exhaust gas processor 5 contains, from bottom to top, a molecular sieve filter 29, a HEPA filter 30, an alkaline filter 31, and a nano-titanium dioxide photocatalytic filter 32. A ring-shaped light source 33 is located on top of the nano-titanium dioxide photocatalytic filter 32. The bottom of the exhaust gas processor 5 has a conical structure, and a drain pipe 10 is connected to the center of the bottom.

[0032] In this embodiment, valves are provided on the water inlet pipe 4, the drain pipe 7, and the chemical dosing pipe 3.

[0033] Working Principle: Wastewater enters the machine through the inlet pipe and passes through the upper and lower filters to remove impurities. The coarse filter removes larger suspended and floating particles, while the precision filter further reduces the impurity content, providing a cleaner water environment for the subsequent addition of wastewater treatment agents. This reduces interference from impurities and improves treatment efficiency. The wastewater treatment agent is introduced into the device through the dosing pipe and reacts with the wastewater. The motor drives the stirring rod to agitate the wastewater, ensuring a thorough reaction between the wastewater and the treatment agent. The suction pump operates, drawing waste gas from wastewater treatment through the hollow section of the rotating shaft and into the waste gas processor via the air pipe. Inside the processor, a molecular sieve filter 29 removes moisture from the waste gas, reducing residual water vapor. A HEPA filter 30 intercepts particulate matter, purifying the waste gas. An alkaline filter 31 (such as a filter material filled with alkaline substances like sodium hydroxide or calcium hydroxide) effectively removes acidic gases through acid-base neutralization. A nano-titanium dioxide photocatalytic filter 32 oxidizes and decomposes various organic pollutants and hydrogen sulfide. The light source provides stable illumination to the photocatalyst, stimulating its catalytic activity and improving the efficiency of oxidizing and decomposing various organic pollutants and hydrogen sulfide, ensuring the quality of waste gas treatment. The treated waste gas is then discharged through the exhaust pipe.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An acrylic resin production wastewater treatment device, characterized in that, The device includes a main body, with a water inlet pipe at the top and a drain pipe on one side of the bottom. A hollow rotating shaft is rotatably mounted at the bottom of the main body. From top to bottom, an upper and lower conical filter screen are movably fitted onto the top of the rotating shaft. Multiple stirring rods are located on the outer surface of the rotating shaft below the lower filter screen. The bottom end of the rotating shaft penetrates the bottom of the main body and is fixed with a second bevel gear. A lower housing is located at the bottom of the main body, and a motor is fixed to the bottom of the lower housing. The motor shaft extends upwards into the lower housing and is fixed with a first bevel gear. The first and second bevel gears mesh with each other. A suction pump is connected to one side of the lower housing via a duct. The suction pump is connected to the bottom of an exhaust gas processor located on the outer wall of the main body. An exhaust pipe is located at the top of the exhaust gas processor.

2. The acrylic resin production wastewater treatment device according to claim 1, characterized in that, The side wall of the machine body is connected to a dosing tube below the lower filter screen.

3. The acrylic resin production wastewater treatment device according to claim 1, characterized in that, The exhaust gas processor contains, from bottom to top, a molecular sieve filter, a HEPA filter, an alkaline filter, and a nano-titanium dioxide photocatalytic filter.

4. The acrylic resin production wastewater treatment device according to claim 3, characterized in that, A ring-shaped light source is located on top of the nano-titanium dioxide photocatalytic filter.

5. The acrylic resin production wastewater treatment device according to claim 3, characterized in that, The bottom of the exhaust gas processor has a conical structure, and a drain pipe is connected to the center of the bottom.

6. The acrylic resin production wastewater treatment device according to claim 1, characterized in that, An upper brush and a lower brush are respectively installed on the rotating shaft. The upper brush is positioned on the surface of the upper filter screen, and the lower brush is positioned on the surface of the lower filter screen.

7. The acrylic resin production wastewater treatment device according to claim 6, characterized in that, The rotating shaft is provided with T-shaped slot one and slot two; the inner ends of the upper and lower brushes are respectively provided with plug block one and plug block two that are adapted to be inserted and connected to slot one and slot two.

8. The acrylic resin production wastewater treatment device according to claim 1, characterized in that, The top sidewall of the machine body is provided with an upper baffle ring and a lower baffle ring from top to bottom, and the edges of the upper filter screen and the lower filter screen are respectively installed on the top of the upper baffle ring and the lower baffle ring.

Images