A petroleum chemical industrial wastewater treatment device

Abstract

The utility model discloses a kind of wastewater treatment devices for petrochemical industrial waste water, it is related to wastewater treatment technical field, including wastewater treatment tank, bottom frame, the bottom frame is fixed at wastewater treatment tank bottom end, and hollow cavity of rectangle is provided on bottom frame, control panel is provided on the outside of wastewater treatment tank.The support metal net inside the support frame provided in the wastewater treatment tank is covered with activated carbon filler layer, modified zeolite filler layer, that is, after chemical industrial waste water is discharged into wastewater treatment tank, modified zeolite removes ammonia nitrogen material in chemical industrial waste water by ion exchange and adsorption effect, and heavy metal ions in chemical industrial waste water can be removed, further using activated carbon filler layer removes refractory organic matter in wastewater by physical adsorption and chemical adsorption, and processing effect is better, then cooperate middle layer filter screen plate to reach the effect of further filtration treatment.

Description

Technical Field

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

[0002] The petrochemical industry, as a vital pillar of my country's national economy, plays an irreplaceable role in energy supply and chemical product production. However, the petrochemical production process is complex, involving numerous chemical reactions and material processing steps, which inevitably generates large quantities of complex and highly polluting wastewater. Direct discharge of this wastewater without effective treatment will cause serious and lasting harm to the ecological environment and human health. Therefore, developing efficient and reliable petrochemical wastewater treatment equipment is of paramount practical importance. A wastewater treatment device for petrochemical wastewater, with announcement number CN222983857U, includes a shell, a cleaning device, and a discharge device. The outer end of the upper surface of the shell has a storage groove, and a top cover is installed on top of the shell. A protrusion is fixedly connected to the outer end of the lower surface of the top cover. A feed pipe is fixedly connected to the left end of the top cover, and a first switching valve is fixedly connected inside the feed pipe. The cleaning device is fixedly connected to the middle of the top cover. Receiving blocks are fixedly connected to the upper, lower, front, left, and right sides of the inner side of the shell, and a filter screen is engaged on the upper surface of the receiving blocks. Discharge ports are opened at the upper front and middle rear sides of the shell, and discharge devices are installed at the discharge ports. A liquid outlet pipe is fixedly connected to the left side of the bottom end of the shell. This wastewater treatment device for petrochemical wastewater facilitates multiple filtrations, increases purification efficiency, facilitates cleaning of the filter device, prevents clogging, and facilitates disassembly and assembly of the filter device. The existing technologies described above are limited in their approach to treating chemical wastewater, relying solely on a single filter screen with a pore size typically ranging from 50 to 500 μm. This screen can only intercept suspended solids larger than the pore size (such as particulate impurities and fibers), but it has no effect on colloids (0.001-1 μm in diameter), dissolved organic matter (such as benzene compounds and phenols), and heavy metal ions, resulting in limited treatment effectiveness. Therefore, corresponding improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a wastewater treatment device for petrochemical wastewater, so as to solve the problem that the existing wastewater treatment devices for petrochemical wastewater mentioned in the background art have a single wastewater treatment method and limited effect.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device for petrochemical wastewater, comprising a wastewater treatment tank and a bottom frame, wherein the bottom frame is fixed to the bottom end of the wastewater treatment tank and a rectangular hollow cavity is provided on the bottom frame, and a control panel is provided on the outside of the wastewater treatment tank. The wastewater treatment tank is detachably connected to a top cover, with an inlet at the center of the top cover. A packing support mechanism is located at the bottom of the top cover. A middle-layer filter screen is connected to one side of the inside of the wastewater treatment tank, and a feed pipe is located on the same side. A drain pipe is connected to the bottom of the outside of the wastewater treatment tank, penetrating the entire tank. A turbulence-stirring mechanism is located at the bottom of the inside of the wastewater treatment tank. The packing support mechanism includes a support frame, which is positioned inside the wastewater treatment tank. Reinforcing supports are evenly fixed to the top of the support frame. The support frame has a support bar, and the outer side of each support bar is connected to a reinforcing block. One end of each support bar is connected to a reinforcing ring. The support frame has a supporting metal mesh inside, and the supporting metal mesh is made of stainless steel. The supporting metal mesh is covered with multiple layers of filler, including an activated carbon filler layer and a modified zeolite filler layer. There are four sets of support bars on the support frame, with four bars in each set. All support bars are made of stainless steel. Connecting columns are fixed on both sides of the top of the support frame. One end of each connecting column passes through the top cover and is threaded with a fixing nut seat.

[0005] Furthermore, there are fixing plates on both sides of the bottom end of the top cover, and fixing bolts are threaded inside the fixing plates, with one end of each fixing bolt extending into the wastewater treatment tank.

[0006] Furthermore, the turbulence-stirring mechanism includes a rotary motor, which is located inside the bottom frame. One end of the rotary motor is connected to mains power via a wire. A rotary shaft is fixed to the output shaft end of the rotary motor, and a sleeve block is fixed to the outside of the rotary shaft. Telescopic rods are movably connected to both sides of the sleeve block, and turbulence-stirring rods are movably connected to both sides of the sleeve block.

[0007] Furthermore, multiple agitator plates are fixed on both sides of the turbulence rod, and rectangular cross-section through grooves are evenly arranged on each agitator plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are: the wastewater treatment device for petrochemical wastewater has diverse treatment methods, high wastewater treatment efficiency, and good effect; The support frame inside the wastewater treatment tank is covered with an activated carbon packing layer and a modified zeolite packing layer. After the chemical wastewater is discharged into the wastewater treatment tank, the modified zeolite effectively removes ammonia nitrogen and heavy metal ions from the chemical wastewater through ion exchange and adsorption. The activated carbon packing layer further removes recalcitrant organic matter from the wastewater through physical and chemical adsorption, resulting in better treatment. Then, it is combined with a middle layer filter screen to achieve further filtration. The filler layer is supported by a stainless steel mesh, which has high strength and rigidity and can evenly distribute the weight of the filler to avoid local settlement or collapse. Multiple sets of reinforcing blocks are used for support to prevent deformation of the support frame and the mesh, ensuring the continuous adsorption process. Even after the wastewater is treated with filler, tiny colloids and suspended solids may still remain. By injecting an appropriate amount of flocculant into the wastewater treatment tank through the feed pipe, the dispersed suspended solids can be further aggregated into micro-flocs, which then settle. During this process, the rotating shaft and sleeve block rotate, driving the turbulence rod and multiple agitator plates to rotate, generating shear force and turbulence. This causes the micro-flocs to further collide, adsorb, and bridge, forming large flocs with high density and fast settling speed, thus enhancing the wastewater treatment effect and efficiency. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the 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 based on these drawings without creative effort.

[0010] Figure 1 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the filler support mechanism of this utility model; Figure 5 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0011] The following are the annotations in the diagram: 1. Wastewater treatment tank; 2. Top cover; 201. Liquid inlet; 3. Fixing plate; 4. Fixing bolt; 5. Packing support mechanism; 501. Support frame; 502. Reinforcing support bar; 503. Supporting metal mesh; 504. Reinforcing block; 505. Reinforcing ring; 6. Connecting column; 601. Fixing nut seat; 7. Bottom frame; 8. Turbulence stirring mechanism; 801. Rotary motor; 802. Rotating shaft; 803. Sleeve block; 804. Turbulence rod; 805. Stirring plate; 806. Through groove; 807. Telescopic rod; 9. Middle layer filter screen; 10. Control panel; 11. Feed pipe; 12. Drain pipe. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] Please see Figures 1-5 The present invention provides the following technical solution: Example

[0014] To address the shortcomings of existing wastewater treatment devices for petrochemical wastewater, which suffer from limited treatment methods and ineffective results, the following technical solution is proposed. Please refer to the following for details. Figure 1 , Figure 2 , Figure 3 , Figure 4 A wastewater treatment device for petrochemical wastewater includes a wastewater treatment tank 1 and a bottom frame 7. The bottom frame 7 is fixed to the bottom of the wastewater treatment tank 1, and a rectangular hollow cavity is provided on the bottom frame 7. A control panel 10 is provided on the outside of the wastewater treatment tank 1. A top cover 2 is detachably connected to the top of the wastewater treatment tank 1. There are fixing plates 3 on both sides of the bottom of the top cover 2, and fixing bolts 4 are threaded inside the fixing plates 3. One end of each fixing bolt 4 extends into the interior of the wastewater treatment tank 1. Connecting columns 6 are fixed to both sides of the top of the support frame 501. One end of each connecting column 6 passes through the top cover 2, and a fixing nut seat 601 is threaded to one end of each connecting column 6. In use, rotate the fixing bolt 4 to screw the fixing plate 3 into the wastewater treatment tank 1, so that the top cover 2 can be fixed with the fixing plate 3. The top cover 2 can be disassembled by reversing the operation later. Then the internal packing support mechanism 5 can be disassembled at the same time. Then, tighten the fixing nut seat 601 to detach it from the connecting column 6, and then the support frame 501 can be separated from the top cover 2. The operation is convenient. A liquid inlet 201 is provided at the center of the top of the top cover 2, and a packing support mechanism 5 is provided at the bottom of the top cover 2; The packing support mechanism 5 includes a support frame 501, which is located inside the wastewater treatment tank 1. Reinforcing support bars 502 are evenly fixed at the top of the support frame 501, and reinforcing blocks 504 are connected to the outer side of each reinforcing support bar 502. A reinforcing ring 505 is connected to one end of the reinforcing support bar 502. The support frame 501 is internally connected to a support metal mesh 503, which is made of stainless steel. The support metal mesh 503 is covered with multiple layers of filler, including an activated carbon filler layer and a modified zeolite filler layer. The modified zeolite filler layer is the upper filler layer, and the activated carbon filler layer is the lower treatment layer. The two work together to remove recalcitrant organic matter and other heavy metal ions from chemical wastewater, resulting in good wastewater treatment effect. Four sets of reinforcing support bars 502 are provided on the support frame 501, with four bars in each set. All reinforcing support bars 502 are made of stainless steel. In one embodiment, during use, the cooperation of multiple reinforcing support bars 502 and reinforcing rings 505 supports the filler layer on the support frame 501, preventing the filler from loosening and causing local collapse. The reinforcing support bars 502 are all made of stainless steel, which has high strength and good support effect, thus providing better support for the filler. Example

[0015] This embodiment differs from Embodiment 1 in that it utilizes the turbulence-stirring mechanism 8 to agitate and mix the pre-treated wastewater and flocculant, thereby increasing the contact rate and improving wastewater treatment efficiency. Therefore, the following technical solution is disclosed; please refer to the details. Figure 1 , Figure 5 A middle layer filter screen 9 is connected to one side of the inside of the wastewater treatment tank 1. A feed pipe 11 is provided on one side of the inside of the wastewater treatment tank 1. A drain pipe 12 is connected to the bottom of the outside of the wastewater treatment tank 1 and the drain pipe 12 passes through the wastewater treatment tank 1. A turbulence stirring mechanism 8 is provided at the bottom of the inside of the wastewater treatment tank 1. The turbulence stirring mechanism 8 includes a rotary motor 801, which is located inside the bottom frame 7. One end of the rotary motor 801 is connected to the mains power through a wire. A rotary shaft 802 is fixed to the output shaft end of the rotary motor 801. A sleeve block 803 is fixed to the outside of the rotary shaft 802. Telescopic rods 807 are movably connected to both sides of the sleeve block 803. Turbulence rods 804 are movably connected to both sides of the sleeve block 803. Multiple stirring plates 805 are fixed to both sides of the turbulence rods 804, and rectangular cross-section through grooves 806 are evenly provided on each stirring plate 805. In this embodiment, the wastewater treated by the packing material falls through the middle filter screen 9 for further filtration, resulting in better treatment. Then, an appropriate amount of flocculant is injected into the wastewater treatment tank 1 through the feed pipe 11. Next, the rotary motor 801 is driven to rotate the rotary shaft 802 and the sleeve block 803, thereby rotating the two turbulence rods 804. This causes multiple stirring plates 805 to rotate, generating shear force and turbulence, which further collide, adsorb, and bridge the micro-flocs, forming large flocs with high density and fast settling speed. During this process, the different rotation speeds of the rotary motor 801 generate different centrifugal forces, which causes the turbulence rods 804 to swing up and down, adjusting the stirring range and improving the mixing effect. The treated water is then discharged from the drain pipe 12.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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. A wastewater treatment device for petrochemical wastewater, comprising a wastewater treatment tank (1) and a bottom frame (7), wherein the bottom frame (7) is fixed to the bottom end of the wastewater treatment tank (1), and a rectangular hollow cavity is provided on the bottom frame (7), and a control panel (10) is provided on the outside of the wastewater treatment tank (1). Its features are: The wastewater treatment tank (1) is detachably connected to a top cover (2), and an inlet (201) is provided at the center of the top of the top cover (2). A packing support mechanism (5) is provided at the bottom of the top cover (2). A middle layer filter screen (9) is connected to one side of the inside of the wastewater treatment tank (1). A feed pipe (11) is provided on one side of the inside of the wastewater treatment tank (1). A drain pipe (12) is connected to the bottom of the outside of the wastewater treatment tank (1), and the drain pipe (12) penetrates through the wastewater treatment tank (1). A turbulence stirring mechanism (8) is provided at the bottom of the inside of the wastewater treatment tank (1). The packing support mechanism (5) includes a support frame (501), and the support frame (501) is located inside the wastewater treatment tank (1). Reinforcing support strips (501) are evenly fixed at the top of the support frame (501). 02), and the outer side of the reinforcing support strip (502) is connected to a reinforcing block (504). One end of the reinforcing support strip (502) is connected to a reinforcing ring (505). The inside of the support frame (501) is connected to a supporting metal mesh (503), and the supporting metal mesh (503) is made of stainless steel. The supporting metal mesh (503) is covered with multiple layers of filler, including activated carbon filler layer and modified zeolite filler layer. The reinforcing support strip (502) is set in four groups on the support frame (501), with four strips in each group. The reinforcing support strip (502) is made of stainless steel. The top two sides of the support frame (501) are fixed with connecting columns (6). One end of the connecting column (6) passes through the top cover (2). One end of the connecting column (6) is threaded with a fixing nut seat (601).

2. The wastewater treatment device for petrochemical wastewater according to claim 1, characterized in that: The top cover (2) has fixing plates (3) on both sides of the bottom end, and fixing bolts (4) are threaded inside the fixing plates (3). One end of each fixing bolt (4) extends into the wastewater treatment tank (1).

3. The wastewater treatment device for petrochemical wastewater according to claim 1, characterized in that: The turbulence stirring mechanism (8) includes a rotary motor (801), and the rotary motor (801) is located inside the bottom frame (7). One end of the rotary motor (801) is connected to the mains power through a wire. A rotary shaft (802) is fixed to the output shaft end of the rotary motor (801), and a sleeve block (803) is fixed to the outside of the rotary shaft (802). Telescopic rods (807) are movably connected to both sides of the sleeve block (803), and turbulence rods (804) are movably connected to both sides of the sleeve block (803).

4. The wastewater treatment device for petrochemical wastewater according to claim 3, characterized in that: Multiple agitator plates (805) are fixed on both sides of the turbulence rod (804), and rectangular cross-section through slots (806) are uniformly arranged on the agitator plates (805).

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