Pretreatment equipment for detecting landfill leachate sample

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to pretreatment equipment for landfill leachate sample detection, which comprises a treatment box, and an infiltration mechanism is fixedly mounted in an inner cavity of the treatment box; the infiltration mechanism comprises an infiltration box, the back surface of the infiltration box is fixedly connected with the inner wall of the treatment box, a motor is fixedly mounted in an inner cavity of the infiltration box, a rotating shaft is fixedly mounted at the output end of the motor through a speed reducer, a rotating plate is fixedly mounted on the outer surface of the rotating shaft, and a sliding frame is slidably mounted at the top of the rotating plate through a sliding block. According to the pretreatment equipment for landfill leachate sample detection, a motor drives a rotating shaft to rotate, the rotating shaft drives a sliding frame to reciprocate through a rotating plate, the sliding frame drives a clamping frame to reciprocate through a moving frame, the clamping frame drives a percolation frame to move, and leachate on the percolation frame is subjected to vibration screening; impurities in the leachate are uniformly spread, and the leachate is collected by the first communicating pipe after being percolated by the plurality of percolation frames.

Description

Technical Field

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

[0002] During the decomposition process of landfill, garbage generates a large amount of acidic and alkaline organic pollutants and dissolves heavy metals, forming a three-in-one pollution source consisting of organic matter, heavy metals, and pathogenic microorganisms. Accurate determination of heavy metal content in landfill leachate is of great significance for environmental monitoring and pollution control. Atomic absorption spectrometry (AAS) is a commonly used technique for heavy metal analysis, characterized by high sensitivity and high selectivity.

[0003] Currently, landfill leachate samples typically contain a large number of tiny impurities and organic matter, which presents the following problems in actual operations:

[0004] 1. Leachate usually undergoes multiple filtration processes to remove fine impurities and waste. Since the leachate is directly transported through pipes without a corresponding dispersion structure, impurities in the leachate accumulate in a certain position on the filter screen after long-term use, affecting the normal operation of filtration.

[0005] 2. Landfill leachate sampling and testing pretreatment are usually carried out separately using different equipment. A lot of time and equipment are required for the pretreatment of landfill leachate sampling and testing. Therefore, a landfill leachate testing pretreatment device that can integrate leachate with acid digestion, microwave digestion or solid phase extraction is needed. Utility Model Content

[0006] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0007] Specifically, the technical problem to be solved by this utility model is to provide a pretreatment device for testing landfill leachate samples, so as to solve the current technical problem that a large number of different devices are needed to process the leachate before testing landfill leachate samples, and a lot of time is spent to obtain a solution containing only heavy metals. Moreover, during the leachate ...

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A pretreatment device for testing landfill leachate samples includes a treatment tank, wherein a leachate treatment mechanism is fixedly installed in the inner cavity of the treatment tank, and a leachate treatment mechanism is fixedly installed on the inner wall of the treatment tank.

[0010] The percolation mechanism includes a percolation box, the back of which is fixedly connected to the inner wall of the treatment box. A motor is fixedly installed in the inner cavity of the percolation box. A rotating shaft is fixedly installed at the output end of the motor via a reducer. A rotating plate is fixedly installed on the outer surface of the rotating shaft. A slide is slidably installed on the top of the rotating plate via a slider.

[0011] As an improved technical solution, the percolation mechanism further includes a placement frame, the outer surface of which is fixedly connected to the inner wall of the percolation box, and the percolation frame is slidably mounted on the inner surface of the placement frame.

[0012] As an improved technical solution, the percolation mechanism further includes a fixing component, which includes a cylinder. The top end of the cylinder is slidably connected to the top of the inner cavity of the percolation chamber. A piston rod is fixedly installed at the output end of the cylinder. A movable frame is fixedly installed at the bottom end of the piston rod. A clamp is fixedly installed on the inner surface of the movable frame. The outer surface of the clamp engages with the inner surface of the percolation frame. The back of the movable frame is fixedly connected to the front of the slide.

[0013] As an improved technical solution, the leachate treatment mechanism includes an inlet pipe, the bottom end of which is connected to the top of the leachate tank, and the top end of which penetrates the treatment tank and extends to the outside of the treatment tank.

[0014] As an improved technical solution, the leachate treatment mechanism also includes a microwave digester, the top of which is connected to a No. 1 connecting pipe, the top of which is connected to the bottom of the leachate tank, and a No. 1 valve is fixedly installed on the outer surface of the No. 1 connecting pipe.

[0015] As an improved technical solution, the leachate treatment mechanism further includes a material injection assembly, which includes a connecting frame. A material tank is fixedly installed on the inner surface of the connecting frame. The bottom end of the material tank is connected to a material injection pipe. A second valve is fixedly installed on the outer surface of the material injection pipe. The bottom end of the material injection pipe is connected to the top of the microwave digester.

[0016] As an improved technical solution, the leachate treatment mechanism further includes a secondary leachate infusion assembly, which includes a secondary percolator. The top of the secondary percolator is connected to a second connecting pipe, and the bottom of the secondary percolator is connected to a third connecting pipe.

[0017] As an improved technical solution, the secondary infiltration and perfusion assembly also includes a No. 1 water pump, the top of which is connected to the bottom of the No. 2 connecting pipe, and the right side of the No. 1 water pump is connected to the right side of the microwave digester through a suction pipe.

[0018] As an improved technical solution, the secondary infiltration injection assembly also includes a second water pump, the top of which is connected to an injection pipe, the right side of which is connected to the left end of a third connecting pipe, a third valve is fixedly installed on the outer surface of the injection pipe, and the bottom end of the injection pipe passes through the treatment box and extends to the outside of the treatment box.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are:

[0020] 1. This utility model incorporates a vibratory percolation design for leachate. Through the coordinated use of a motor and a rotating plate and slide, the slide and placement rack, the moving frame and clamping frame, and the clamping frame and percolation frame, the percolation frame vibrates and filters the leachate. This prevents impurities from accumulating in a specific location on the percolation frame after prolonged percolation, thus avoiding impurities affecting the filtration effect. Furthermore, the coordinated use of a cylinder and air rod with the moving frame and clamping frame, and the clamping frame and percolation frame, allows each layer of the percolation frame to be individually removed from the percolation chamber for processing.

[0021] 2. This utility model improves the efficiency of leachate pretreatment by integrating the pretreatment equipment into a single device. Through the coordinated use of the percolation mechanism and inlet pipe with the first connecting pipe and microwave digester, and the coordination of the material tank and injection pipe with the first valve and microwave digester, the pre-percolated leachate is directly injected into the microwave digester for treatment. This eliminates the need for separate acid injection into the instrument. Furthermore, the coordinated use of the first water pump and second connecting pipe with the secondary percolator and third connecting pipe, and the coordination of the third connecting pipe and second water pump with the injection pipe and third valve, allows for the extraction of leachate containing only heavy metal solutions simply by placing a sample into the instrument. This reduces the various steps in traditional leachate pretreatment and improves the efficiency of leachate pretreatment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the pretreatment equipment for landfill leachate sample testing according to this utility model.

[0024] Figure 2 This is a three-dimensional sectional view of the processing box of the pretreatment equipment for landfill leachate sample testing according to this utility model.

[0025] Figure 3 This is a three-dimensional cross-sectional view of the leachate mechanism of the pretreatment equipment for landfill leachate sample testing according to this utility model.

[0026] Figure 4 This utility model relates to a pretreatment device for landfill leachate sample testing. Figure 1 A magnified structural diagram of A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Processing box; 2. Percolation mechanism; 21. Percolation box; 22. Motor; 23. Rotating shaft; 24. Rotating plate; 25. Slide; 26. Placement rack; 27. Fixing assembly; 271. Cylinder; 272. Air rod; 273. Moving frame; 274. Clamping bracket; 28. Percolation rack; 3. Percolate treatment mechanism; 31. Inlet pipe; 32. Microwave digester; 33. Connecting pipe No. 1; 34. Valve No. 1; 35. Injection assembly; 351. Connecting frame; 352. Material tank; 353. Injection pipe; 354. Valve No. 2; 36. Secondary percolation filling assembly; 361. Secondary percolator; 362. Connecting pipe No. 2; 363. Connecting pipe No. 3; 364. Water pump No. 1; 365. Suction pipe; 366. Water pump No. 2; 367. Injection pipe; 368. Valve No. 3. Detailed Implementation

[0029] 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 protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0032] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, this embodiment provides a pretreatment device for landfill leachate sample testing. This pretreatment device for landfill leachate sample testing includes a treatment tank 1, a leachate treatment mechanism 2 is fixedly installed in the inner cavity of the treatment tank 1, and a leachate treatment mechanism 3 is fixedly installed on the inner wall of the treatment tank 1.

[0034] The percolation mechanism 2 includes a percolation box 21. The back of the percolation box 21 is fixedly connected to the inner wall of the treatment box 1. A motor 22 is fixedly installed in the inner cavity of the percolation box 21. A rotating shaft 23 is fixedly installed at the output end of the motor 22 through a reducer. A rotating plate 24 is fixedly installed on the outer surface of the rotating shaft 23. A slide 25 is slidably installed on the top of the rotating plate 24 through a slider.

[0035] Motor 22 is electrically connected to an external power source and is controlled by an external PLC programming program.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the percolation mechanism 2 also includes a placement frame 26, the outer surface of which is fixedly connected to the inner wall of the percolation box 21, and a percolation frame 28 is slidably installed on the inner surface of the placement frame 26.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the percolation mechanism 2 also includes a fixing component 27, which includes a cylinder 271. The top end of the cylinder 271 is slidably connected to the top of the inner cavity of the percolation box 21. The output end of the cylinder 271 is fixedly mounted with a piston rod 272. The bottom end of the piston rod 272 is fixedly mounted with a movable frame 273. The inner surface of the movable frame 273 is fixedly mounted with a clip 274. The outer surface of the clip 274 is engaged with the inner surface of the percolation frame 28. The back of the movable frame 273 is fixedly connected to the front of the slide 25.

[0038] Cylinder 271 is electrically connected to an external power source. Cylinder 271 is controlled by an external PLC programming program. Cylinder 271 drives the moving frame 273 to move downward through the air rod 272. The moving frame 273 drives the clamp 274 to be inserted into the percolator 28, fixing the percolator 28 in place, so that the slide 25 can drive the percolator 28 to perform left and right reciprocating motion.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, the leachate treatment mechanism 3 includes an inlet pipe 31, the bottom end of which is connected to the top of the leachate tank 21, and the top end of which passes through the treatment tank 1 and extends to the outside of the treatment tank 1.

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, the leachate treatment mechanism 3 also includes a microwave digester 32, the top of which is connected to a first connecting pipe 33, the top of which is connected to the bottom of the leachate tank 21, and a first valve 34 is fixedly installed on the outer surface of the first connecting pipe 33.

[0041] The microwave digester 32 can perform heating and cooling. At the same time, through the control of valve 34 and valve 354, the microwave digester 32 is kept in a sealed state. The microwave digester 32 is electrically connected to an external power supply and is controlled by an external PLC programming program.

[0042] like Figure 1 , Figure 2 and Figure 4 As shown, the leachate treatment mechanism 3 also includes a material injection assembly 35, which includes a connecting frame 351. A material tank 352 is fixedly installed on the inner surface of the connecting frame 351. The bottom end of the material tank 352 is connected to a material injection pipe 353. A second valve 354 is fixedly installed on the outer surface of the material injection pipe 353. The bottom end of the material injection pipe 353 is connected to the top of the microwave digester 32.

[0043] like Figure 1 , Figure 2 and Figure 4 As shown, the leachate treatment mechanism 3 also includes a secondary leachate infusion assembly 36, which includes a secondary percolator 361. The top of the secondary percolator 361 is connected to a second connecting pipe 362, and the bottom of the secondary percolator 361 is connected to a third connecting pipe 363.

[0044] The interior of the secondary percolator 361 is the same as that of the percolation mechanism 2, both of which can perform percolation treatment on the leachate.

[0045] like Figure 1 , Figure 2 and Figure 4 As shown, the secondary infiltration perfusion assembly 36 also includes a first water pump 364, the top of which is connected to the bottom of the second connecting pipe 362, and the right side of the first water pump 364 is connected to the right side of the microwave digester 32 through a suction pipe 365.

[0046] Pump No. 1 364 is electrically connected to an external power source and is controlled by an external PLC programming program.

[0047] like Figure 1 , Figure 2 and Figure 4 As shown, the secondary infiltration injection assembly 36 also includes a second water pump 366. The top of the second water pump 366 is connected to an injection pipe 367. The right side of the second water pump 366 is connected to the left end of the third connecting pipe 363. A third valve 368 is fixedly installed on the outer surface of the injection pipe 367. The bottom end of the injection pipe 367 passes through the treatment box 1 and extends to the outside of the treatment box 1.

[0048] Water pump 366 is electrically controlled by an external power source and is controlled by an external PLC programming program.

[0049] In use, the user pours the leachate into the inlet pipe 31, which then flows into the leachate tank 21. The motor 22 drives the rotating shaft 23 to rotate, which in turn drives the slide 25 to reciprocate via the rotating plate 24. The slide 25, in turn, drives the clamping frame 274 to reciprocate via the moving frame 273. The clamping frame 274 then moves the leachate rack 28, vibrating and screening the leachate on the rack 28 to evenly distribute impurities. After passing through multiple leachate racks 28, the leachate is collected by the first connecting pipe 33 and controlled by the first valve 34. The acid solution is injected into the microwave digester 32. Then, under the control of valve 354, the acid solution in the injection tank 352 is injected into the microwave digester 32 according to the metering. After being heated by the microwave digester 32, the organic matter in the leachate is decomposed by acid. After cooling, pump 364 injects the leachate from the microwave digester 32 into the secondary permeabilizer 361 through the suction pipe 365. After vibration permeation, the treated leachate enters the third connecting pipe 363, and is then injected in batches into the prepared containers by pump 366 through the filling pipe 367 for subsequent testing.

[0050] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A pretreatment device for testing landfill leachate samples, comprising a treatment tank (1), characterized in that: The inner cavity of the treatment tank (1) is fixedly equipped with a percolation mechanism (2), and the inner wall of the treatment tank (1) is fixedly equipped with a leachate treatment mechanism (3). The percolation mechanism (2) includes a percolation box (21), the back of which is fixedly connected to the inner wall of the treatment box (1). A motor (22) is fixedly installed in the inner cavity of the percolation box (21). A rotating shaft (23) is fixedly installed at the output end of the motor (22) through a reducer. A rotating plate (24) is fixedly installed on the outer surface of the rotating shaft (23). A slide (25) is slidably installed on the top of the rotating plate (24) through a slider.

2. The pretreatment equipment for landfill leachate sample testing according to claim 1, characterized in that: The percolation mechanism (2) also includes a placement rack (26), the outer surface of which is fixedly connected to the inner wall of the percolation box (21), and a percolation rack (28) is slidably installed on the inner surface of the placement rack (26).

3. The pretreatment equipment for landfill leachate sample testing according to claim 1, characterized in that: The percolation mechanism (2) further includes a fixing component (27), which includes a cylinder (271). The top end of the cylinder (271) is slidably connected to the top of the inner cavity of the percolation box (21). The output end of the cylinder (271) is fixedly mounted with a piston rod (272). The bottom end of the piston rod (272) is fixedly mounted with a movable frame (273). The inner surface of the movable frame (273) is fixedly mounted with a clip (274). The outer surface of the clip (274) is engaged with the inner surface of the percolation frame (28). The back of the movable frame (273) is fixedly connected to the front of the slide (25).

4. The pretreatment equipment for landfill leachate sample testing according to claim 1, characterized in that: The leachate treatment mechanism (3) includes an inlet pipe (31), the bottom end of which is connected to the top of the leachate tank (21), and the top end of which penetrates the treatment tank (1) and extends to the outside of the treatment tank (1).

5. The pretreatment equipment for landfill leachate sample testing according to claim 1, characterized in that: The leachate treatment mechanism (3) also includes a microwave digester (32), the top of which is connected to a first connecting pipe (33), the top of which is connected to the bottom of the leachate box (21), and a first valve (34) is fixedly installed on the outer surface of the first connecting pipe (33).

6. The pretreatment equipment for landfill leachate sample testing according to claim 1, characterized in that: The leachate treatment mechanism (3) further includes a material injection assembly (35), which includes a connecting frame (351). A material tank (352) is fixedly installed on the inner surface of the connecting frame (351). The bottom end of the material tank (352) is connected to a material injection pipe (353). A second valve (354) is fixedly installed on the outer surface of the material injection pipe (353). The bottom end of the material injection pipe (353) is connected to the top of the microwave digester (32).

7. The pretreatment equipment for landfill leachate sample testing according to claim 1, characterized in that: The leachate treatment mechanism (3) further includes a secondary leachate infusion assembly (36), which includes a secondary percolator (361). The top of the secondary percolator (361) is connected to a second connecting pipe (362), and the bottom of the secondary percolator (361) is connected to a third connecting pipe (363).

8. The pretreatment equipment for landfill leachate sample testing according to claim 7, characterized in that: The secondary infiltration and perfusion assembly (36) also includes a No. 1 water pump (364), the top of which is connected to the bottom of the No. 2 connecting pipe (362), and the right side of the No. 1 water pump (364) is connected to the right side of the microwave digester (32) through a suction pipe (365).

9. The pretreatment equipment for landfill leachate sample testing according to claim 7, characterized in that: The secondary infiltration injection assembly (36) also includes a second water pump (366), the top of which is connected to an injection pipe (367), the right side of which is connected to the left end of a third connecting pipe (363), a third valve (368) is fixedly installed on the outer surface of the injection pipe (367), and the bottom end of the injection pipe (367) penetrates the treatment box (1) and extends to the outside of the treatment box (1).

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