Styrene wastewater treatment device

Abstract

The utility model relates to a styrene wastewater treatment device, which comprises a reaction mechanism, a filter press and a sedimentation tank, the reaction mechanism comprises a reaction kettle, the reaction kettle is provided with a dosing pipe and a wastewater inlet pipe, the reaction kettle is communicated with the sedimentation tank through a first connecting pipe, and the first connecting pipe is provided with a first valve and a first water pump; the bottom of the sedimentation tank is communicated with the input end of the filter press through a second connecting pipe, a second valve and a second water pump are mounted on the second connecting pipe, the middle of the sedimentation tank is communicated with a drainage pipe, the drainage pipe is communicated with the water storage tank, and the output end of the filter press is communicated with the water storage tank; and if the filter press is blocked or has other faults, after the second valve is closed, a maintainer can maintain the filter press without a ladder stand, so that the maintenance is convenient, and the efficiency is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment equipment, in particular to a styrene wastewater treatment device. Background Art

[0002] Styrene is an organic compound with a wide range of uses. It is used as a monomer for synthetic rubber and plastics, including in the production of styrene-butadiene rubber, polystyrene, and foamed polystyrene. It is also copolymerized with other monomers to produce engineering plastics for a variety of different purposes, such as ABS resin, SAN resin, and SBS thermoplastic rubber. In addition, styrene is also used in the manufacture of audio-visual products, automotive parts, films, resins, and as a raw material for ion exchange resins and pharmaceuticals.

[0003] During the industrial production of styrene, due to the complexity of chemical reactions and the influence of operating conditions and safety measures, wastewater containing a variety of organic matter and other impurities will be generated. These wastewaters need to be properly treated and recycled to ensure environmental safety and effective utilization of resources. There are many methods for treating styrene industrial wastewater. For example, the common method is chemical coagulation. By adding flocculants (such as polyaluminum chloride), suspended matter and colloids in the wastewater are destabilized to form larger particles or flocs, which are easy to precipitate or float for removal. This method can effectively remove suspended matter and some heavy metal ions in the wastewater.

[0004] Styrene wastewater treated by chemical coagulation usually needs to filter out particles or flocs in the wastewater before it can be recycled. In related technologies, filtration is generally performed through a filter. However, the filter in the related technology is installed in a tank body. If the filter is blocked, the tank body needs to be disassembled for maintenance. However, the volume of the tank body is relatively large, and maintenance personnel also need to use tools such as ladders for maintenance. The maintenance process is relatively cumbersome and inefficient. Utility Model Content

[0005] The purpose of the utility model is to design a styrene wastewater treatment device to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a styrene wastewater treatment device, comprising a reaction mechanism, a filter press and a sedimentation tank, the reaction mechanism comprising a reactor, the reactor being provided with a dosing pipe and a wastewater inlet pipe, the reactor being connected to the sedimentation tank through a first connecting pipe, the first connecting pipe being provided with a first valve and a first water pump, the bottom of the sedimentation tank being connected to the input end of the filter press through a second connecting pipe, the second connecting pipe being provided with a second valve and a second water pump, the middle of the sedimentation tank being connected with a drain pipe, the drain pipe being connected to a water storage tank, and the output end of the filter press being connected to the water storage tank.

[0007] Furthermore, a scraper and a slag discharge port are provided on the top of the sedimentation tank. The scraper is slidably connected to the inner wall of the sedimentation tank through a slide rail, and the scraper is transmission-connected to a drive assembly.

[0008] Furthermore, a steam inlet is provided on the side wall of the reactor, and the steam inlet is connected to a steam generator.

[0009] Furthermore, the reaction mechanism also includes a stirrer, and a driving motor of the stirrer is installed on the top of the reactor.

[0010] Furthermore, the side wall of the reactor is provided with an inspection door.

[0011] Furthermore, a sewage outlet is provided at the bottom of the reactor, a sealing cover is provided at the sewage outlet, and the sealing cover is connected to the reactor flange.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model adds flocculant into the reactor through the dosing pipe, and styrene wastewater is introduced into the reactor from the wastewater inlet pipe. After a period of time, the styrene wastewater in the reactor is transported to the sedimentation tank through the first connecting pipe. After standing in the sedimentation tank for a period of time, turbid liquid will form at the bottom of the sedimentation tank. The upper layer of liquid is first discharged into the water storage tank from the drain pipe, and the turbid liquid in the lower layer is introduced into the filter press through the second connecting pipe and filtered by the filter press. If the filter press is blocked or has other faults, after closing the second valve, the maintenance personnel can repair the filter press without the help of a ladder, which is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] The names of the components marked in the figure are as follows: 1. Reaction mechanism; 101. Reactor; 102. Agitator; 2. Filter press; 3. Sedimentation tank; 4. Dosing pipe; 5. Wastewater inlet pipe; 6. First connecting pipe; 7. First valve; 8. First water pump; 9. Second connecting pipe; 10. Second valve; 11. Second water pump; 12. Drive assembly; 13. Steam inlet; 14. Inspection door; 15. Sealing cover. DETAILED DESCRIPTION

[0015] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0016] Example: Please refer to Figure 1A styrene wastewater treatment device includes a reaction mechanism 1, a filter press 2 and a sedimentation tank 3. The reaction mechanism 1 includes a reactor 101. The reactor 101 is provided with a dosing pipe 4 and a wastewater inlet pipe 5. Styrene wastewater is introduced into the reactor 101 from the wastewater inlet pipe 5. A flocculant is added to the reactor 101 from the dosing pipe 4. After the styrene industrial wastewater reacts in the reactor 101 for a period of time, larger particles or flocs will be formed; the reactor 101 is connected to the sedimentation tank 3 through a first connecting pipe 6. The first connecting pipe 6 is provided with a first A valve 7 and a first water pump 8, the first valve is a three-way valve, the dosing pipe 4, the wastewater inlet pipe 5 and the first connecting pipe 6 are all connected to the first valve, the wastewater inlet pipe 5 is opened through the three-way valve first, the wastewater is input into the reactor 101, and the three-way valve is adjusted to open the dosing pipe 4 to add the flocculant into the reactor 101. After the flocculant is added, the three-way valve is closed to allow the wastewater in the reactor 101 to fully react; after the reaction is completed, the first water pump 8 is started, the three-way valve is opened to connect it to the first connecting pipe 6, and the reaction is pumped into the reactor 101 through the first water pump 8. The styrene wastewater in the reactor 101 is input into the sedimentation tank 3; after the styrene wastewater is allowed to stand for a period of time, a turbid liquid is formed in the lower layer of the sedimentation tank 3, and the upper liquid basically meets the standards for wastewater treatment; the bottom of the sedimentation tank 3 is connected to the input end of the filter press 2 through a second connecting pipe 9, and the second connecting pipe 9 is installed with a second valve 10 and a second water pump 11. The middle of the sedimentation tank 3 is connected with a drain pipe, which is connected to a water storage tank. The output end of the filter press 2 is connected to the water storage tank, and the water storage tank is used to store the treated styrene industrial wastewater; the sedimentation tank 3 is connected to the bottom of the sedimentation tank 3 through a second connecting pipe 9. The upper layer of liquid in the pool 3 is input into the water storage tank through the drainage pipe, and the lower layer of liquid is transported to the filter press 2 through the second water pump 11. The turbid liquid is filtered by the filter press 2, and the output end of the filter press 2 is connected to the water storage tank, and the filtered styrene wastewater is transported to the water storage tank for storage; in this application, the filter press 2 is arranged outside the sedimentation tank 3, and the volume of the filter press 2 is small. If the filter press 2 is blocked or other faults occur, the maintenance personnel do not need to use a ladder to perform maintenance work, and the maintenance is convenient and efficient.

[0017] In an optional embodiment, a scraper and a slag discharge port are provided on the top of the sedimentation tank 3. The liquid level in the sedimentation tank 3 is located at 1 / 3-2 / 3 of the scraper. The scraper is slidably connected to the inner wall of the sedimentation tank 3 through a slide rail. The scraper transmission is connected to a drive assembly 12. The drive assembly 12 includes a motor and a screw. The screw is rotatably connected to the side wall of the sedimentation tank 3 through a bearing. The screw is connected to the output shaft of the motor. The scraper is threadedly connected to the screw. The motor drives the screw to rotate, so that the scraper moves along the slide rail. The scraper scrapes off the floating sediment and discharges it from the slag discharge port.

[0018] In an optional embodiment, a steam inlet 13 is provided on the side wall of the reactor 101, and the steam inlet 13 is connected to a steam generator. Steam is generated by the steam generator, and the steam is input into the reactor 101 from the steam inlet 13 to heat the liquid in the reactor 101. The temperature in the reactor 101 is controlled at 70-90°C, so that the polymerization reaction of the styrene wastewater proceeds smoothly.

[0019] In an optional embodiment, the reaction mechanism 1 further includes an agitator 102 , the driving motor of which is installed on the top of the reactor 101 . The agitator 102 is used to stir the styrene wastewater in the reactor 101 , so that the wastewater and the flocculant are fully mixed to accelerate the flocculation process.

[0020] In an optional embodiment, an inspection door 14 is provided on the side wall of the reactor 101 . The inspection door 14 facilitates maintenance personnel to inspect the agitator 102 in the reactor 101 .

[0021] In an optional embodiment, a sewage outlet is provided at the bottom of the reactor 101, and a sealing cover 15 is provided at the sewage outlet. The sealing cover 15 is flange-connected to the reactor 101, and the sewage that cannot be discharged from the reactor 101 is cleaned through the sewage outlet.

[0022] The working principle of this embodiment is as follows: when in use, styrene wastewater is introduced into the reactor 101 from the wastewater inlet pipe 5, and flocculant is added to the reactor 101 from the dosing pipe 4. After the styrene industrial wastewater reacts in the reactor 101 for a period of time, the first water pump 8 is started, and the first valve 7 is opened. The wastewater in the reactor 101 is transported to the sedimentation tank 3 through the first water pump 8. After the wastewater in the sedimentation tank 3 is allowed to stand for a period of time, turbid liquid is formed in the lower layer. The upper layer liquid is input into the water storage tank from the drain pipe, and the lower layer liquid is transported to the filter press 2 through the second water pump 11. The turbid liquid is filtered by the filter press 2, and the filtered wastewater is transported to the water storage tank for storage. In the utility model, if the filter press 2 is blocked or has other faults, after closing the second valve 10, the maintenance personnel can repair the filter press 2 without the help of a ladder, which is convenient and efficient.

[0023] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A styrene wastewater treatment device, characterized in that: The invention comprises a reaction mechanism (1), a filter press (2) and a sedimentation tank (3), wherein the reaction mechanism (1) comprises a reactor (101), a dosing pipe (4) and a wastewater inlet pipe (5) are provided on the reactor (101), the reactor (101) is connected to the sedimentation tank (3) through a first connecting pipe (6), a first valve (7) and a first water pump (8) are installed on the first connecting pipe (6), the bottom of the sedimentation tank (3) is connected to the input end of the filter press (2) through a second connecting pipe (9), a second valve (10) and a second water pump (11) are installed on the second connecting pipe (9), a drain pipe is connected to the middle of the sedimentation tank (3), the drain pipe is connected to a water storage tank, and the output end of the filter press (2) is connected to the water storage tank.

2. The styrene wastewater treatment device according to claim 1, characterized in that: A scraper and a slag discharge port are provided on the top of the sedimentation tank (3); the scraper is slidably connected to the inner wall of the sedimentation tank (3) via a slide rail; and the scraper is transmission-connected to a drive assembly (12).

3. The styrene wastewater treatment device according to claim 1, characterized in that: A steam inlet (13) is provided on the side wall of the reactor (101), and the steam inlet (13) is connected to a steam generator.

4. The styrene wastewater treatment device according to claim 1, characterized in that: The reaction mechanism (1) further comprises a stirrer (102), and a driving motor of the stirrer (102) is installed on the top of the reactor (101).

5. The styrene wastewater treatment device according to claim 4, characterized in that: The side wall of the reactor (101) is provided with an inspection door (14).

6. The styrene wastewater treatment device according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the reactor (101), and a sealing cover (15) is provided at the sewage outlet. The sealing cover (15) is flange-connected to the reactor (101).

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