Environment-friendly pressure vessel for chemical sewage treatment

Abstract

The utility model belongs to the technical field of pressure vessels, and particularly relates to an environment-friendly pressure vessel for chemical sewage treatment, which comprises a tank body and a top cover, electric push rods are symmetrically and fixedly connected to the top wall of the top cover, the driving ends of the electric push rods are fixedly connected with the outer wall of the tank body, and a forward and reverse motor is fixedly connected to the top of the tank body. The driving end of the forward and reverse motor is fixedly connected with a connecting rod, a treatment assembly is mounted in the tank body, and the treatment assembly comprises a plurality of annular filter screens and two mounting rings; sewage in the tank body is filtered through the filter screen, the activated carbon filter layer and the fiber membrane in sequence, suspended particles and fine wool fibers of the chemical sewage are intercepted by the filter screen, impurities in the sewage are further adsorbed and filtered by the activated carbon filter layer, and the sewage is filtered at high precision by the fiber membrane.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, specifically an environmentally friendly pressure vessel for chemical wastewater treatment. Background Technology

[0002] Pressure vessels are sealed devices that hold gases or liquids and withstand a certain pressure. They mainly include reaction vessels, heat exchange vessels, separation vessels, and storage and transportation vessels. Impurities in chemical wastewater primarily consist of suspended particles and fine fibers. During chemical wastewater treatment, pressure vessels are typically used to filter these impurities through mechanical filtration, thereby removing them and ensuring the wastewater meets discharge standards.

[0003] Chemical wastewater is complex in composition, often consisting of solvents or cyclic compounds. Mechanical filtration cannot effectively filter these impurities, resulting in poor treatment of suspended particles and fine fibers by pressure vessels. This necessitates multi-stage treatment of the chemical wastewater to meet discharge standards, leading to significant waste of resources and energy. Therefore, this paper proposes an environmentally friendly pressure vessel for chemical wastewater treatment to address these issues. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The environmentally friendly pressure vessel for chemical wastewater treatment of this utility model includes a tank body and a top cover. The top wall of the top cover is symmetrically and fixedly connected with electric push rods. The driving end of the electric push rods is fixedly connected to the outer wall of the tank body. The top of the tank body is fixedly connected with a forward and reverse motor. The driving end of the forward and reverse motors is fixedly connected with a connecting rod. The bottom of the connecting rod is fixedly connected with a U-shaped connecting frame. A treatment component is installed inside the tank body. The treatment component includes several annular filter screens and two mounting rings. The inner wall of the filter screens is rotatably connected to the outer wall of the connecting rod. The opposite sides of the two mounting rings are fixedly connected by a connecting column. The upper mounting ring is fixedly connected to the bottom end of the connecting frame. The inner wall of the mounting ring is fixedly connected with a cross-shaped bracket. Activated carbon filter layer and fiber membrane are placed inside the two mounting rings from top to bottom, respectively.

[0006] Preferably, an electrode plate is fixedly connected to the top edge of the filter screen, and the electrode plate consists of an anode plate and a cathode plate.

[0007] Preferably, the upper side wall of the tank is fixedly connected to a liquid inlet, the bottom wall of the tank is fixedly connected to a liquid outlet, and a valve is provided on the liquid outlet.

[0008] Preferably, a fixing ring is provided above the filter screen, the inner wall of the fixing ring is fixedly connected to the outer wall of the connecting rod, and a plurality of push plates are fixedly connected to the side wall of the fixing ring.

[0009] Preferably, the lower side wall of the connecting rod is tapped to form a threaded groove, a piston plate is threadedly connected to the lower side wall of the connecting rod, a guide rod is fixedly connected to the top wall of the piston plate, and the top end of the guide rod passes through the filter screen and the top cover.

[0010] Preferably, the piston plate has a flow end on its surface, and a solenoid valve is provided on the flow end.

[0011] Preferably, a plurality of limiting components are installed on the top of the mounting ring, the limiting components including a sliding groove, the sliding groove being formed on the upper surface of the mounting ring, and a slider being slidably connected inside the sliding groove.

[0012] Preferably, a tension spring is fixedly connected to the side wall of the slide, and the other end of the tension spring is fixedly connected to the outer wall of the slider.

[0013] Preferably, the limiting component further includes a rotating frame, the bottom end of which is rotatably connected to the upper surface of the mounting ring via a shaft, and the rotating frame and the opposite side of the slider are rotatably connected to a pull rod via a shaft.

[0014] The advantages of this utility model are:

[0015] 1. In this utility model, wastewater inside the tank is filtered sequentially through a filter screen, an activated carbon filter layer, and a fiber membrane. The filter screen traps suspended particles and fine fibers in the chemical wastewater, the activated carbon filter layer further adsorbs and filters impurities in the wastewater, and the fiber membrane performs high-precision filtration of the wastewater. An electric push rod is used to adjust the height of the top cover, so that the activated carbon filter layer, fiber membrane, and filter layer can be raised to the tank opening according to the top cover, making it convenient to replace the activated carbon filter layer and fiber membrane.

[0016] 2. This utility model uses an electric push rod to extend, causing the mounting ring to move out of the tank. The slider slides outward from the mounting ring by the tension of the spring, allowing the user to place or remove the activated carbon filter layer or fiber membrane inside the mounting ring. When the mounting ring descends into the tank, the slider slides above the activated carbon filter layer or fiber membrane, thus preventing the activated carbon filter layer or fiber membrane from falling off and achieving automatic positioning of the activated carbon filter layer or fiber membrane. Attached Figure Description

[0017] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a sectional view of the tank body of this utility model;

[0020] Figure 3 This is a schematic diagram of the processing component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the piston plate structure of this utility model;

[0022] Figure 5 This utility model Figure 3 A schematic diagram of structure A.

[0023] In the diagram: 1. Tank body; 2. Top cover; 3. Electric push rod; 4. Forward and reverse motor; 5. Connecting rod; 6. Connecting frame; 7. Processing component; 71. Filter screen; 72. Mounting ring; 73. Support; 74. Activated carbon filter layer; 75. Fiber membrane; 76. Electrode plate; 77. Fixing ring; 78. Push plate; 8. Liquid inlet end; 9. Liquid outlet end; 10. Piston plate; 11. Guide rod; 12. Flow end; 13. Solenoid valve; 14. Limiting component; 141. Slide groove; 142. Slider; 143. Tension spring; 144. Rotating frame; 145. Pull rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-4As shown, an environmentally friendly pressure vessel for chemical wastewater treatment includes a tank body 1 and a top cover 2. Electric push rods 3 are symmetrically fixedly connected to the top wall of the top cover 2. The driving end of the electric push rods 3 is fixedly connected to the outer wall of the tank body 1. A forward and reverse motor 4 is fixedly connected to the top of the tank body 1. A connecting rod 5 is fixedly connected to the driving end of the forward and reverse motor 4. A U-shaped connecting frame 6 is fixedly connected to the bottom of the connecting rod 5. A treatment assembly 7 is installed inside the tank body 1. The treatment assembly 7 includes several annular filter screens 71 and two mounting rings 72. The inner wall of the filter screens 71 is rotatably connected to the outer wall of the connecting rod 5. The opposite sides of the two mounting rings 72 are fixedly connected by connecting columns. The upper mounting ring 72 is fixedly connected to the bottom end of the connecting frame 6. A cross-shaped bracket 73 is fixedly connected to the inner wall of the mounting ring 72. An activated carbon filter layer 74 and a fiber membrane 75 are placed inside the two mounting rings 72 from top to bottom, respectively. A coagulant addition port is opened at the top of the top cover 2.

[0027] Specifically, the top cover 2 is used to close the opening of the tank body 1. The sewage inside the tank body 1 is filtered sequentially through the filter screen 71, the activated carbon filter layer 74, and the fiber membrane 75. The filter screen 71 intercepts suspended particles and fine fibers in the chemical sewage. The activated carbon filter layer 74 further adsorbs and filters impurities in the sewage. The fiber membrane 75 performs high-precision filtration of the sewage. The electric push rod 3 is used to adjust the height of the top cover 2. It is connected sequentially through the connecting rod 5, the connecting ring, and the mounting ring 72, so that the activated carbon filter layer 74, the fiber membrane 75, and the filter layer can be raised to the opening of the tank body 1 according to the top cover 2, which facilitates the replacement of the activated carbon filter layer 74 and the fiber membrane 75, as well as the cleaning of impurities filtered by the filter screen 71. The forward and reverse motor 4 is used to drive the connecting rod 5 to rotate. The mounting ring 72 is used to limit the activated carbon filter layer 74 or the fiber membrane 75. The bracket 73 is used to support the activated carbon filter layer 74 or the fiber membrane 75.

[0028] An electrode plate 76 is fixedly connected to the top edge of the filter screen 71. The electrode plate 76 consists of an anode plate and a cathode plate.

[0029] Specifically, the anode and cathode plates of electrode plate 76 electrolyze the wastewater, causing harmful substances in the wastewater to undergo oxidation and reduction reactions on the anode and cathode plates respectively through the electrolysis process, transforming them into harmless substances. They also coagulate and adsorb impurities in the wastewater that are in a colloidal or dissolved state, thereby improving the filtration effect on impurities.

[0030] The upper side wall of the tank body 1 is fixedly connected to the liquid inlet 8, and the bottom wall of the tank body 1 is fixedly connected to the liquid outlet 9, and a valve is provided on the liquid outlet 9.

[0031] Specifically, the inlet end 8 is connected to the chemical wastewater pipeline. The amount of wastewater added at one time is about one-third of the capacity of the tank 1. The valve controls the opening and closing of the outlet end 9. When the outlet end 9 is open, it is used to discharge the treated wastewater.

[0032] A fixing ring 77 is provided above the filter screen 71. The inner wall of the fixing ring 77 is fixedly connected to the outer wall of the connecting rod 5. Several push plates 78 are fixedly connected to the side wall of the fixing ring 77.

[0033] Specifically, the connecting rod 5 is used to drive the fixed ring 77 to rotate, the fixed ring 77 drives the push plate 78 to rotate, and the rotation of the push plate 78 can push the impurities filtered on the filter screen 71 to the edge layer, so as to avoid the accumulation of impurities and affect the filtration effect of the filter screen 71.

[0034] The lower side wall of the connecting rod 5 is tapped to form a threaded groove. The lower side wall of the connecting rod 5 is threaded to a piston plate 10. The top wall of the piston plate 10 is fixedly connected to a guide rod 11. The top end of the guide rod 11 passes through the filter screen 71 and the top cover 2. The surface of the piston plate 10 is provided with a flow end 12, and a solenoid valve 13 is provided on the flow end 12.

[0035] Specifically, the guide rod 11 is used to guide the piston plate 10 vertically. The piston plate 10 blocks the sewage. The forward and reverse motor 4 runs in both directions, causing the connecting rod 5 to rotate and drive the piston plate 10 to rise and fall. This allows the sewage to pass through the filter screen 71 repeatedly, thereby improving the filtration effect. When the sewage flows upward, it can backwash the filter screen 71, reducing the problem of filter pore blockage. After filtration, the piston plate 10 rises to the top, the forward and reverse motor 4 is turned off and the solenoid valve 13 is opened, allowing the sewage to flow downward through the activated carbon filter layer 74 and the fiber membrane 75 for fine filtration. Then, the piston plate 10 is run again and the solenoid valve 13 is closed, allowing the piston plate 10 to move downward to pressurize the sewage, allowing the sewage to quickly pass through the activated carbon filter layer 74 and the fiber membrane 75, improving the filtration efficiency of the activated carbon filter layer 74 and the fiber membrane 75.

[0036] Example 2

[0037] For comparison with Example 1, please refer to Figure 5 As shown, this utility model provides another embodiment, in which a plurality of limiting components 14 are installed on the top of the mounting ring 72. The limiting components 14 include a slide groove 141, which is formed on the upper surface of the mounting ring 72. A slider 142 is slidably connected inside the slide groove 141. A tension spring 143 is fixedly connected to the side wall of the slide groove 141. The other end of the tension spring 143 is fixedly connected to the outer wall of the slider 142. The limiting components 14 also include a rotating frame 144. The bottom end of the rotating frame 144 is rotatably connected to the upper surface of the mounting ring 72 via a shaft. The opposite side of the rotating frame 144 and the slider 142 are rotatably connected to a pull rod 145 via a shaft.

[0038] Specifically, when installing the activated carbon filter layer 74 and the fiber membrane 75, the electric push rod 3 is extended to move the mounting ring 72 out of the tank 1. At this time, the rotating frame 144 disengages from the inner wall of the tank 1, and the slider 142 slides outward of the mounting ring 72 by the tension of the tension spring 143. This allows the user to place the activated carbon filter layer 74 or the fiber membrane 75 inside the mounting ring 72 or remove it. When the mounting ring 72 descends into the tank 1, the inner wall of the tank 1 abuts against and pushes the rotating frame 144 to rotate. The rotation of the rotating frame 144 pushes the slider 142 to slide through the pull rod 145, so that the slider 142 slides above the activated carbon filter layer 74 or the fiber membrane 75, thereby preventing the activated carbon filter layer 74 or the fiber membrane 75 from falling off and achieving automatic positioning of the activated carbon filter layer 74 or the fiber membrane 75.

[0039] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0040] Working principle: The inlet end 8 is connected to the chemical wastewater pipeline, allowing wastewater to enter the interior of tank 1. The wastewater inside tank 1 is filtered sequentially through filter screen 71, activated carbon filter layer 74, and fiber membrane 75. Filter screen 71 intercepts suspended particles and fine fibers in the chemical wastewater. Activated carbon filter layer 74 further adsorbs and filters impurities in the wastewater. Fiber membrane 75 performs high-precision filtration of the wastewater. Electric push rod 3 is used to adjust the height of top cover 2, so that activated carbon filter layer 74, fiber membrane 75, and filter layer can be raised to the tank opening of tank 1 according to top cover 2, which facilitates the replacement of activated carbon filter layer 74 and fiber membrane 75, as well as the cleaning of impurities filtered by filter screen 71.

[0041] When wastewater passes through filter screen 71, the piston plate 10 blocks the wastewater. The forward and reverse motor 4 cycles in both directions, causing the connecting rod 5 to rotate and drive the piston plate 10 to rise and fall, allowing the wastewater to repeatedly pass through filter screen 71, thereby improving the filtration effect. When the wastewater flows upward, it can backwash filter screen 71, reducing the problem of filter pore blockage. At the same time, coagulant is added through the coagulant addition port, which can also improve the mixing effect between coagulant and wastewater. After filtration, the piston plate 10 rises to the top, the forward and reverse motor 4 is turned off and the solenoid valve 13 is opened, allowing the wastewater to flow downward through the activated carbon filter layer 74 and the fiber membrane 75 for fine filtration. Then, the piston plate 10 is run again and the solenoid valve 13 is closed, allowing the piston plate 10 to move downward to apply pressure to the wastewater, allowing the wastewater to quickly pass through the activated carbon filter layer 74 and the fiber membrane 75, improving the filtration efficiency of the activated carbon filter layer 74 and the fiber membrane 75.

[0042] When installing the activated carbon filter layer 74 and the fiber membrane 75, the electric push rod 3 is extended to move the mounting ring 72 out of the tank 1. At this time, the rotating frame 144 disengages from the inner wall of the tank 1, and the slider 142 slides outward of the mounting ring 72 by the tension of the tension spring 143. This allows the user to place the activated carbon filter layer 74 or the fiber membrane 75 inside the mounting ring 72 or remove it. When the mounting ring 72 descends into the tank 1, the inner wall of the tank 1 abuts against and pushes the rotating frame 144 to rotate. The rotation of the rotating frame 144 pushes the slider 142 to slide through the pull rod 145, so that the slider 142 slides above the activated carbon filter layer 74 or the fiber membrane 75, thereby preventing the activated carbon filter layer 74 or the fiber membrane 75 from falling off and achieving automatic positioning of the activated carbon filter layer 74 or the fiber membrane 75.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An environmentally friendly pressure vessel for treating chemical wastewater, comprising a tank body (1) and a top cover (2), characterized in that: Electric push rods (3) are symmetrically fixedly connected to the top wall of the top cover (2). The driving end of the electric push rod (3) is fixedly connected to the outer wall of the tank (1). A forward and reverse motor (4) is fixedly connected to the top of the tank (1). A connecting rod (5) is fixedly connected to the driving end of the forward and reverse motor (4). A U-shaped connecting frame (6) is fixedly connected to the bottom of the connecting rod (5). A processing component (7) is installed inside the tank (1). The processing component (7) includes several annular filters. The filter screen (71) and two mounting rings (72) are connected in a rotatable manner to the outer wall of the connecting rod (5). The two mounting rings (72) are fixedly connected on opposite sides by a connecting post. The upper mounting ring (72) is fixedly connected to the bottom end of the connecting frame (6). The inner wall of the mounting ring (72) is fixedly connected to a cross-shaped bracket (73). The interior of the two mounting rings (72) contains an activated carbon filter layer (74) and a fiber membrane (75) respectively from top to bottom.

2. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 1, characterized in that: An electrode plate (76) is fixedly connected to the top edge of the filter screen (71), and the electrode plate (76) is composed of an anode plate and a cathode plate.

3. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 1, characterized in that: The upper side wall of the tank (1) is fixedly connected to an inlet end (8), and the bottom wall of the tank (1) is fixedly connected to an outlet end (9), and a valve is provided on the outlet end (9).

4. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 1, characterized in that: A fixing ring (77) is provided above the filter screen (71). The inner wall of the fixing ring (77) is fixedly connected to the outer wall of the connecting rod (5). Several push plates (78) are fixedly connected to the side wall of the fixing ring (77).

5. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 1, characterized in that: The lower side wall of the connecting rod (5) is tapped to form a threaded groove. The lower side wall of the connecting rod (5) is threadedly connected to a piston plate (10). The top wall of the piston plate (10) is fixedly connected to a guide rod (11). The top end of the guide rod (11) passes through the filter screen (71) and the top cover (2).

6. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 5, characterized in that: The piston plate (10) has a flow end (12) on its surface, and a solenoid valve (13) is provided on the flow end (12).

7. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 1, characterized in that: The top of the mounting ring (72) is equipped with a plurality of limiting components (14), the limiting components (14) including a groove (141), the groove (141) being formed on the upper surface of the mounting ring (72), and a slider (142) being slidably connected inside the groove (141).

8. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 7, characterized in that: A tension spring (143) is fixedly connected to the side wall of the slide (141), and the other end of the tension spring (143) is fixedly connected to the outer wall of the slider (142).

9. The environmentally friendly pressure vessel for chemical wastewater treatment according to claim 7, characterized in that: The limiting component (14) also includes a rotating frame (144), the bottom end of which is rotatably connected to the upper surface of the mounting ring (72) via a shaft, and the rotating frame (144) and the slider (142) are rotatably connected to a pull rod (145) via a shaft on opposite sides.

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