Isophorone wastewater treatment device

Abstract

The utility model discloses an isophorone wastewater treatment device which comprises a flowing disc, a blocking weir and an adsorption column, the flowing disc is composed of a plurality of S-shaped adsorption sections and transition sections, an inclined included angle a is formed between each adsorption section and the horizontal direction, the inclined included angle a is 10-50 degrees, a water inlet is formed in one side of the adsorption section located at the topmost part, and a water outlet is formed in the other side of the adsorption section located at the topmost part. A plurality of clamping grooves are formed in all the adsorption sections, blocking weirs and adsorption columns matched with the blocking weirs are clamped in the clamping grooves, the adsorption columns are located on one side of the upstream of water flow, flow guide openings communicated with the adsorption sections on the lower side are formed in the transition sections, and a water outlet is formed in one side of the transition section located at the bottommost part. Through the arrangement, COD (Chemical Oxygen Demand) and floccules in the wastewater can be removed through the adsorption column, and the treated wastewater can be directly used as a raw material of an isophorone production catalyst.

Description

Technical Field

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

[0002] α-Isophorone (3,5,5-trimethyl-2-cyclohexen-1-one) is an important chemical product. It has strong solubility, good dispersion and leveling properties, and is an excellent solvent for many polymer resins. At the same time, it is also an important fine chemical synthesis raw material and can be used to synthesize fine chemical products such as 3,5-dimethylphenol and tea ketone.

[0003] A large amount of wastewater is generated in the production of isophorone. Alkali is usually used as a catalyst in the production of isophorone (usually one or more of alkali catalysts such as KOH and NaOH). Therefore, the wastewater generated in the production is high-alkali wastewater, with a pH usually exceeding 13, and it contains a certain amount of flocculent impurities and a certain amount of COD. It is difficult to treat as high-alkali wastewater, and the treatment cost is relatively high.

[0004] The traditional method usually directly treats it in the sewage treatment station, and procedures such as filtration and acid neutralization are required during the treatment process. This traditional treatment method requires frequent disassembly and washing of the filter, which is difficult to disassemble and wash, wasting manpower and material resources. In the subsequent treatment, acid is used to neutralize the wastewater, and the alkaline catalyst in the wastewater cannot be recycled, resulting in waste of resources. If methods such as the evaporation method are used to recover the alkaline catalyst, the energy consumption is extremely high. Summary of the Utility Model

[0005] Aiming at the above defects, the utility model aims to provide a wastewater treatment device for isophorone, which can simultaneously remove COD and flocculents in the wastewater, and the treated wastewater can be directly used as the raw material of the isophorone production catalyst.

[0006] To achieve the above object, the utility model provides the following technical solution: A wastewater treatment device for isophorone, including a flowing tray, a blocking weir, and an adsorption column. The flowing tray is composed of a plurality of adsorption sections and transition sections with an "S" shape. There is an inclined angle a between the adsorption section and the horizontal direction, and the inclined angle a is 10° - 50°. An inlet is opened on one side of the adsorption section at the top. A plurality of card slots are opened on all the adsorption sections, and a matching blocking weir and adsorption column are clamped in the card slots. The adsorption column is located on the upstream side of the water flow. A diversion port communicating with the lower adsorption section is opened on the transition section, and an outlet is opened on one side of the transition section at the bottom.

[0007] As a further improvement of the utility model, the width of the flowing tray is 0.8m - 1.5m.

[0008] As a further improvement of the present utility model, the inclination angle a is 15° - 30°.

[0009] As a further improvement of the present utility model, the diversion port is arranged on one side of the transition section away from the adsorption section of this section.

[0010] As a further improvement of the present utility model, the adsorption column includes a housing with a right triangular prism structure. The housing is a mesh structure. A shell plate is detachably installed on one side of the housing, and the housing is filled with an adsorption substance.

[0011] As a further improvement of the present utility model, the blocking weir includes a main body with a right triangular prism structure. A collecting plate is fixedly connected to one side of the main body, and the adsorption column is placed on the collecting plate and is clamped into the card slot together.

[0012] As a further improvement of the present utility model, the height of the blocking weir is 8 cm - 11 cm.

[0013] As a further improvement of the present utility model, the height of the adsorption column is 8% - 10% higher than the height of the blocking weir.

[0014] As a further improvement of the present utility model, the number of the blocking weirs and adsorption columns is 50 - 80 levels.

[0015] Advantages of the present utility model:

[0016] 1. Designing the flowing tray as an "S" shape can reduce the floor area. Setting the adsorption column and the blocking weir on the flowing tray can realize the multiple treatment of production wastewater, effectively remove the flocculent solid impurities and COD in the wastewater, and the catalyst in the treated wastewater can be recycled, achieving the purpose of resource recovery.

[0017] 2. By using the clamping method to fix the adsorption column and the blocking weir in the card slot, the disassembly, washing and replacement of components of the adsorption column and the blocking weir are convenient, greatly saving manpower and material resources. Even during use, when one or several of the front sections are blocked, under the treatment of the adsorption column and the blocking weir in the rear section, the front section can be directly disassembled and new columns can be installed, or it can be reinstalled after cleaning.

[0018] 3. The adsorption column being slightly higher than the blocking weir can ensure that the wastewater fully flows through the adsorption column. If the adsorption column is at the same height as the blocking weir, it may cause the wastewater to flow over the surface of the adsorption column without fully entering the adsorption column, reducing the contact time between the wastewater and the adsorption column, decreasing the utilization rate of the adsorption column and the COD adsorption effect. Therefore, the adsorption column needs to be slightly higher than the blocking weir to ensure sufficient contact between the adsorption column and the wastewater and ensure the COD adsorption effect. Description of the Drawings

[0019] Figure 1It is a schematic structural diagram of the isophorone wastewater treatment device of the present utility model;

[0020] Figure 2 It is a partial axonometric schematic diagram of the isophorone wastewater treatment device;

[0021] Figure 3 It is a partial side view schematic diagram of the isophorone wastewater treatment device;

[0022] Figure 4 It is a schematic structural diagram of the blocking weir;

[0023] Figure 5 It is a schematic diagram of the cooperation between the blocking weir and the adsorption column;

[0024] Figure 6 It is a schematic working principle diagram of wastewater treatment;

[0025] Figure 7 It is a schematic structural diagram of the adsorption column;

[0026] Figure 8 It is an axonometric drawing of the shell plate structure.

[0027] In the figure: 1 - flowing tray, 100 - card slot, 101 - water inlet, 102 - adsorption section, 103 - transition section, 104 - diversion port, 105 - water outlet; 2 - adsorption column, 200 - outer shell, 201 - shell plate; 3 - blocking weir, 300 - main body, 301 - collection plate. Specific embodiments

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the present utility model. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only references to the directions in the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the present utility model. In addition, in all embodiments, the same reference numerals represent the same components.

[0029] As Figures 1 to 3 shown, an isophorone wastewater treatment device includes a flowing tray 1. The flowing tray 1 is bent back and forth and is divided into multiple sections. The adjacent three sections are in an "S" shape. Each section of the flowing tray 1 includes an inclined adsorption section 102 and a horizontal transition section 103.

[0030] Each section of the flowing tray 1 has the same horizontal width, and its range is between 0.5 m and 2 m, and is further preferably between 0.8 m and 1.5 m. The adsorption section 102 of the flowing tray 1 has an inclined angle a with the horizontal direction, and the range of the inclined angle a is between 10° and 50°, and is further preferably between 15° and 30°.

[0031] The uppermost end of the adsorption section 102 at the top of the flowing tray 1 is open and serves as the water inlet 101 of the device; one side of the transition section 103 at the bottom of the flowing tray 1 is open and serves as the water outlet 105 of the device. The water outlet 105 is located on the side away from this adsorption section 102.

[0032] If there are other segments below this section of the flowing tray 1, a vertically downward diversion port 104 is opened on the side of this transition section 103 away from the adsorption section 102. The diversion port 104 communicates with the lower adsorption section 102, and the side of the transition section 103 away from this adsorption section 102 is set higher.

[0033] A number of card slots 100 are opened on all the adsorption sections 102 of the flowing tray 1. The card slots 100 are rectangular slots, which are opened on the two side edges of the flowing tray 1. The bottom of the card slots 100 is opened on the flowing tray 1, and the opening direction of the card slots 100 is perpendicular to this adsorption section 102.

[0034] As Figures 1 to 8 shown, an adsorption column 2 and a retaining weir 3 are fitted in the card slot 100. The adsorption column 2 includes a housing 200. The housing 200 of the adsorption column 2 is a net structure made of alkali-resistant metal or polymer materials (such as stainless steel, high-nickel alloy, polyethylene polymer materials, etc.). The adsorption column 2 also includes a shell plate 201. The shell plate 201 is detachably installed on the side of the housing 200 with an opening. The shell plate 201 is also a net structure, and the interior of the housing 200 is filled with an adsorption substance.

[0035] As a further explanation of this example, the adsorption substance is mainly made of one or more COD adsorption materials such as resin and activated carbon. Since there are sufficient gaps in the filled adsorption materials, wastewater and flocculent impurities can pass through the net structure and enter the adsorption column 2. Since one side shell plate of the adsorption column 2 is detachable, the adsorption substance inside can be replaced if its adsorption performance deteriorates.

[0036] The retaining weir 3 is made of alkali-resistant metal or polymer materials (such as stainless steel, high-nickel alloy, polyethylene polymer materials, etc.) and is a solid structure. The main body 300 of the retaining weir 3 is also in the shape of a right triangular prism. A collecting plate 301 is fixedly connected to one side of the main body 300 of the retaining weir 3. The length of the collecting plate 301 is the same as the length of the retaining weir 3, and the width of the collecting plate 301 is the same as the width of the bottom edge of the adsorption column 2. During installation, the long side of the adsorption column 2 is closely attached to the long side of the main body 300 of the retaining weir 3, and the bottom edge of the adsorption column 2 is located on the collecting plate 301 of the retaining weir 3. The overall length and width (including the collecting plate 301) of the retaining weir 3 are designed to just fit into the card slot 100 on the flowing tray 1.

[0037] The height of the long side of the blocking weir 3 is between 5 cm and 15 cm, and more preferably between 8 cm and 11 cm. The height of the long side of the adsorption column 2 is slightly higher than that of the blocking weir 3 by 35% - 15%, and more preferably by 8% - 10%.

[0038] As a further illustration of this example, the fact that the adsorption column 2 is slightly higher than the blocking weir 3 can ensure that the wastewater fully flows through the adsorption column 2. If the adsorption column 2 is at the same height as the blocking weir 3, it may cause the wastewater to flow over the surface of the adsorption column 2 without fully entering the adsorption column 2, resulting in a reduction in the contact time between the wastewater and the adsorption column 2, a decrease in the utilization rate of the adsorption column 2, and a decrease in the COD adsorption effect. Therefore, the adsorption column 2 needs to be slightly higher than the blocking weir 3 to ensure sufficient contact between the adsorption column 2 and the wastewater and ensure the COD adsorption effect.

[0039] After matching the blocking weir 3 and the adsorption column 2, they are directly inserted into the card slot 100. The adsorption column 2 is located on the higher side, and the blocking weir 3 is located on the lower side. When inserted to the bottom, the bottom of the main body 300 of the blocking weir 3 and the collection plate 301 just match the bottom of the card slot 100. Through the card slot 100, the blocking weir 3 and the adsorption column 2 can be fixed on the flowing tray 1. The number of the blocking weir 3 and the adsorption column 2 is set correspondingly, and the number is between 20 levels and 100 levels, and more preferably between 50 levels and 80 levels.

[0040] As a further illustration of this example, by using this detachable installation method of insertion to fix the blocking weir 3 and the adsorption column 2 in the card slot 100, when it needs to be disassembled and cleaned, it can be directly disassembled and replaced, or only a certain part of the adsorption column 2 can be replaced, which is convenient for manual operation. The disassembly and cleaning operation can be carried out during the operation of the device after taking good protection. When disassembling, just take out the adsorption column 2 or the blocking weir 3 to be replaced from the card slot 100 to complete the disassembly.

[0041] The working principle and usage process of the present utility model:

[0042] Pour the isophorone production wastewater into the flowing tray 1 from the water inlet 101. The isophorone production wastewater flows downward along the inclined section of the flowing tray 1. During the flowing process, solid impurities such as flocs in the isophorone production wastewater will be affected by gravity, and under the action of gravity sedimentation, the solid impurities such as flocs gradually separate from the upper-layer wastewater and deposit on the flowing tray 1. Since the solid impurities are in the lower layer during the transportation process, they will be intercepted above the inclined part of the blocking weir 3. Since there is an adsorption column 2 above the inclined part of the blocking weir 3, the solid impurities will enter the internal mesh of the adsorption column 2 and be adsorbed by the adsorption substances inside the adsorption column 2, and remain on the collection plate 301 at the bottom of the adsorption column 2;

[0043] The wastewater then flows into the adsorption column 2, flows out from the inside of the adsorption column 2, and then continues to flow downward along the weir 3. During the flowing process, it passes through the diversion opening 104 and enters the next section, continuously flowing through each adsorption column 2 and the weir 3. In this way, solid impurities such as flocs in the production wastewater are adsorbed and retained on the adsorption column 2 and the collection plate 301. Finally, the isophorone production wastewater flowing out from the water outlet 105 has no other solid impurities and can be directly used as an isophorone production catalyst through concentration.

[0044] The above is only the preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above implementation measures. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An isophorone wastewater treatment device, characterized in that: The invention comprises a flow plate (1), a blocking weir (3), and an adsorption column (2). The flow plate (1) is composed of a plurality of adsorption sections (102) and transition sections (103) in an "S" shape. The adsorption sections (102) are inclined at an angle a with the horizontal direction, and the angle a is 10°-50°. A water inlet (101) is provided on one side of the adsorption section (102) at the top. A plurality of slots (100) are provided on all the adsorption sections (102). Matching blocking weirs (3) and adsorption columns (2) are connected in the slots (100). The adsorption columns (2) are located on the upstream side of the water flow. A flow guide (104) connected to the adsorption section (102) at the bottom is provided on the transition section (103). A water outlet (105) is provided on one side of the transition section (103) at the bottom.

2. The isophorone wastewater treatment device according to claim 1, characterized in that: The width of the flow plate (1) is 0.8m-1.5m.

3. The isophorone wastewater treatment device according to claim 1, characterized in that: The inclination angle a is 15°-30°.

4. The isophorone wastewater treatment device according to claim 1, characterized in that: The flow guide port (104) is arranged on a side of the transition section (103) away from the adsorption section (102).

5. The isophorone wastewater treatment device according to claim 1, characterized in that: The adsorption column (2) comprises an outer shell (200) of a straight triangular prism structure, the outer shell (200) is a mesh structure, a shell plate (201) is detachably mounted on one side of the outer shell (200), and the interior of the outer shell (200) is filled with an adsorbent.

6. The isophorone wastewater treatment device according to claim 5, characterized in that: The blocking weir (3) comprises a main body (300) of a straight triangular prism structure, one side of the main body (300) is fixedly connected to a collecting plate (301), and the adsorption column (2) is placed on the collecting plate (301) and is clipped into the clip slot (100).

7. The isophorone wastewater treatment device according to claim 6, characterized in that: The height of the barrier weir (3) is 8 cm-11 cm.

8. The isophorone wastewater treatment device according to claim 7, characterized in that: The height of the adsorption column (2) is 8%-10% higher than the height of the blocking weir (3).

9. The isophorone wastewater treatment device according to claim 8, characterized in that: The number of the blocking weirs (3) and the adsorption columns (2) is 50 to 80.

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