Device for measuring chemical oxygen demand of high-chlorine wastewater

Abstract

The utility model relates to the technical field of measuring devices, and discloses a high-chlorine wastewater chemical oxygen demand measuring device which comprises a lower cabinet body, a test box is fixedly installed at the end of a fixing plate, and a discharging structure is arranged in the lower cabinet body. The discharging structure comprises a peristaltic pump, a discharging frame, a water tank, a water passing pipe, a notch, a sliding groove, a water spraying frame, a screw rod, a sleeve, a sliding block, a connecting rod, a barb frame, corrugated pipes and a connecting strip, then the liquid enters the water spraying frame through the multiple sets of corrugated pipes and is sprayed out from a spraying head, and at the moment, a user can start a motor to work; the connecting strip moves to drive the water spraying frame and the spray head which are hinged to the connecting strip to swing and discharge, and at the moment, due to the fact that the staggered barb frames are arranged in the discharge frame, liquid falls off in a granular mode after making contact with the barb frames, the contact area of the liquid and raw materials in the test box is enlarged, and the absorption efficiency is improved; therefore, follow-up measurement work can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of determination devices, and particularly relates to a device for determining the chemical oxygen demand of high-chlorine wastewater. Background Technique

[0002] The determination of chemical oxygen demand usually involves adding potassium dichromate or potassium permanganate to the water sample to oxidize the organic matter. By using sulfuric acid - potassium dichromate as the oxidation system and silver sulfate as the catalyst, the true value of COD in the water sample is detected by measuring multiple groups of detection values.

[0003] Currently, during the determination work, usually sulfuric acid - potassium dichromate is used as the oxidation system and silver sulfate is used as the catalyst for processing. At this time, all the organic matter is oxidized into carbon dioxide and water, and then by adding the catalyst and the absorbent solution, the COD correction value generated by the oxidation reaction of chloride ions shows a linear relationship with the chloride ion concentration in the wastewater, so as to carry out the calculation work. During the determination process, various raw materials are put into the test box for reaction.

[0004] However, when this determination structure is in operation, usually the catalyst and the absorbent solution are directly poured into the reaction box. At this time, because it is not easy to set up a stirring device inside the reaction box, the reaction speed of the catalyst and the absorbent solution is slow after entering the reaction box, thus reducing the use effect of the device. In view of this, we propose a device for determining the chemical oxygen demand of high-chlorine wastewater. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for determining the chemical oxygen demand of high-chlorine wastewater, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A device for determining the chemical oxygen demand of high-chlorine wastewater, including a lower cabinet body, an upper cabinet body is fixedly installed at the upper end of the lower cabinet body, a partition is fixedly installed on the inner wall of the lower cabinet body, a fixing plate is fixedly installed on the inner wall of the lower cabinet body, a test box is fixedly installed at the end of the fixing plate, a feeding structure is arranged inside the lower cabinet body, and the feeding structure includes:

[0007] A peristaltic pump, the peristaltic pump is fixedly installed on the inner wall of the upper cabinet body, a feeding frame is fixedly installed on the inner wall of the upper cabinet body, a water tank is fixedly installed on the inner wall of the feeding frame, one end of a water pipe is fixedly installed on the side wall of the peristaltic pump, and the other end of the water pipe is fixedly connected to the upper end of the water tank. A plurality of barbed frames are fixedly installed on both sides of the inner wall of the feeding frame;

[0008] A notch is provided inside the water tank. Chutes are provided on both sides at the lower end of the notch. Spray frames are hinged to both sides at the lower end of the water tank. The inner wall of the notch is rotatably connected to a screw rod through a bushing. A sleeve is threadedly connected to the surface of the screw rod. A slider is slidably connected to the inner wall of the chute. One end of a connecting rod is hinged to the upper end of the slider, and the other end of the connecting rod is hinged to the sleeve.

[0009] One end of two groups of bellows is fixedly installed at the upper end of the spray frame, and the other end of the bellows is fixedly connected to the upper end of the water tank. One end of a connecting strip is hinged to the lower end of the slider, and the other end of the connecting strip is hinged to the side wall of the spray frame. A cleaning structure is arranged inside the blanking frame.

[0010] Preferably, the cleaning structure includes one end of a connecting plate fixedly installed on the side wall of the slider. U-shaped scrapers are slidably connected to both sides of the inner wall of the blanking frame. One end of a hinged rod is hinged to the end of the connecting plate away from the slider, and the other end of the hinged rod is hinged to the side wall of the U-shaped scraper.

[0011] Preferably, a motor is fixedly installed at the lower end of the water tank. The output shaft of the motor penetrates the inner wall of the notch and is fixedly connected to the lower end of the screw rod.

[0012] Preferably, a lower cabinet door is hinged to the side wall of the lower cabinet body, and an upper cabinet door is hinged to the side wall of the upper cabinet body.

[0013] Preferably, an operation screen is arranged on the front surface of the upper cabinet door.

[0014] Preferably, nozzles are arranged on the side wall of the spray frame.

[0015] Compared with the prior art, the utility model provides a chemical oxygen demand determination device for high-chlorine wastewater, which has the following beneficial effects:

[0016] 1. The chemical oxygen demand determination device for high-chlorine wastewater is provided with a blanking structure, so as to facilitate the dispersion during the blanking of the catalyst and the absorption liquid. The catalyst and the absorption liquid are absorbed by a peristaltic pump and sprayed out from the nozzles. By starting the motor to drive the screw rod to rotate, the sleeve is driven to move by the rotation of the screw rod. By the movement of the sleeve, two groups of sliders are driven to move inside the chute. By the movement of the sliders, the connecting strip at their lower ends is driven to move. By the movement of the connecting strip, the spray frame and the nozzles hinged thereto are driven to swing and discharge materials. At this time, because an interleaved barbed frame is arranged inside the blanking frame, the liquid drops in a granular state after contacting the barbed frame, so as to increase the contact area between the liquid and the raw materials inside the placement box and improve the absorption efficiency.

[0017] 2. The device for measuring chemical oxygen demand of high-chlorine wastewater is equipped with a cleaning structure, which facilitates the cleaning of both inner walls of the blanking rack, thus preventing liquid from splashing when it comes into contact with the barbed rack and adhering to the inner wall surface of the blanking rack. By moving the slider, the connecting plate on its sidewall is driven to move. By moving the connecting plate, the hinge rod on its sidewall is driven to move. By moving the hinge rod, the U-shaped scraper hinged to it is driven to clean the inner wall of the blanking rack, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic side view structure diagram of the present utility model;

[0019] Figure 2 is a schematic front view structure diagram of the present utility model;

[0020] Figure 3 is a schematic cross-sectional structure diagram of the blanking rack of the present utility model;

[0021] Figure 4 is a schematic enlarged partial structure diagram of the present utility model;

[0022] Figure 5 is a schematic enlarged partial structure diagram of part A of the present utility model.

[0023] In the figure: 1, lower cabinet; 2, upper cabinet; 3, blanking structure; 4, cleaning structure; 5, partition board; 6, fixing plate; 7, test box; 8, motor; 9, lower cabinet door; 10, upper cabinet door; 11, operation screen; 12, nozzle; 31, peristaltic pump; 32, blanking rack; 33, water tank; 34, water pipe; 35, notch; 36, chute; 37, spraying rack; 38, screw rod; 39, sleeve; 310, slider; 311, connecting rod; 312, corrugated pipe; 313, connecting strip; 333, barbed rack; 41, connecting plate; 42, U-shaped scraper; 43, hinge rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] As Figures 1 - 5As shown in the figure, the present utility model provides a technical solution: a device for measuring the chemical oxygen demand of high-chlorine wastewater, which includes a lower cabinet body 1. An upper cabinet body 2 is fixedly installed at the upper end of the lower cabinet body 1. A partition 5 is fixedly installed on the inner wall of the lower cabinet body 1. A fixing plate 6 is fixedly installed on the inner wall of the lower cabinet body 1. A test box 7 is fixedly installed at the end of the fixing plate 6. A feeding structure 3 is arranged inside the lower cabinet body 1. The feeding structure 3 includes a peristaltic pump 31 fixedly installed on the inner wall of the upper cabinet body 2. A feeding frame 32 is fixedly installed on the inner wall of the upper cabinet body 2. A water tank 33 is fixedly installed on the inner wall of the feeding frame 32. One end of a water pipe 34 is fixedly installed on the side wall of the peristaltic pump 31. The other end of the water pipe 34 is fixedly connected to the upper end of the water tank 33. Multiple groups of barbed frames 333 are fixedly installed on both sides of the inner wall of the feeding frame 32. A notch 35 is opened inside the water tank 33. Slide grooves 36 are opened on both sides at the lower end of the notch 35. Spray frames 37 are hinged on both sides at the lower end of the water tank 33. A screw rod 38 is rotatably connected to the inner wall of the notch 35 through a bushing. A sleeve 39 is threadedly connected to the surface of the screw rod 38. A slider 310 is slidably connected to the inner wall of the slide groove 36. One end of a connecting rod 311 is hinged to the upper end of the slider 310. The other end of the connecting rod 311 is hinged to the sleeve 39. One end of two bellows 312 is fixedly installed on the upper end of the spray frame 37. The other end of the bellows 312 is fixedly connected to the upper end of the water tank 33. One end of a connecting strip 313 is hinged to the lower end of the slider 310. The other end of the connecting strip 313 is hinged to the side wall of the spray frame 37. A cleaning structure 4 is arranged inside the feeding frame 32.

[0025] Specifically, the feeding structure 3 of the technical solution of the present utility model includes: a peristaltic pump 31, a feeding frame 32, a water tank 33, a water pipe 34, a notch 35, a slide groove 36, a spray frame 37, a screw rod 38, a sleeve 39, a slider 310, a slider 310, a connecting rod 311, a barbed frame 333, a bellows 312, and a connecting strip 313.

[0026] In an embodiment of the present utility model, a blanking structure 3 is provided to facilitate the dispersion of the catalyst and the absorbent liquid during blanking. When in use, the user can first add a certain amount of water sample into the test box 7, and then sequentially add potassium dichromate solution and sulfuric acid solution, and then carry out the reaction work. Then, add sulfuric acid - silver sulfate solution to carry out the reaction work. Then, the user can connect the peristaltic pump 31 to the external liquid pipe, and then the peristaltic pump 31 absorbs the catalyst and the absorbent liquid and makes them enter the water tank 33 through the water pipe 34. Then, these liquids will enter the spray frame 37 through multiple corrugated pipes 312 and be sprayed out from the nozzle 12. At this time, the user can start the motor 8 to work. The rotation of the output shaft of the motor 8 drives the screw 38 to rotate. The rotation of the screw 38 drives the sleeve 39 threadedly connected to its surface to move. The movement of the sleeve 39 drives the two connecting rods 311 on its side wall to move. The movement of the connecting rods 311 drives the two sliders 310 hinged to them to move inside the chute 36. The movement of the sliders 310 drives the connecting strip 313 at their lower ends to move. The movement of the connecting strip 313 drives the spray frame 37 and the nozzle 12 hinged to it to swing and blank. At this time, because there is an interleaved barbed frame 333 in the blanking frame 32, the liquid will fall in a granular state after contacting the barbed frame 333, thereby expanding the contact area between the liquid and the raw materials inside the test box 7 and improving the absorption efficiency, so as to facilitate the subsequent measurement work.

[0027] By providing a cleaning structure 4, it is convenient to clean the inner walls on both sides of the blanking frame 32, thereby preventing the liquid from splashing after contacting the barbed frame 333 and causing the liquid to adhere to the inner wall surface of the blanking frame 32. The movement of the slider 310 drives the connecting plate 41 on its side wall to move. The movement of the connecting plate 41 drives the hinge rod 43 on its side wall to move. The movement of the hinge rod 43 drives the U-shaped scraper 42 hinged to it to scrape and clean the inner wall of the blanking frame 32, thereby improving the use effect of the device.

[0028] Please continue to refer to Figures 1 - 5 , the cleaning structure 4 includes one end of the connecting plate 41 fixedly installed on the side wall of the slider 310. U-shaped scrapers 42 are slidably connected to both sides of the inner wall of the blanking frame 32. One end of the hinge rod 43 is hinged to the end of the connecting plate 41 away from the slider 310. The other end of the hinge rod 43 is hinged to the side wall of the U-shaped scraper 42. The lower end of the water tank 33 is fixedly installed with a motor 8. The output shaft of the motor 8 penetrates the inner wall of the notch 35 and is fixedly connected to the lower end of the screw 38. The lower cabinet door 9 is hinged to the side wall of the lower cabinet 1. The upper cabinet door 10 is hinged to the side wall of the upper cabinet 2. An operation screen 11 is arranged on the front of the upper cabinet door 10. Nozzles 12 are arranged on the side wall of the spray frame 37.

[0029] During operation, the user can first add a certain amount of water sample into the interior of the test box 7, and then sequentially add potassium dichromate solution and sulfuric acid solution, and then carry out the reaction. Then, add sulfuric acid-silver sulfate solution to carry out the reaction. Then, connect the peristaltic pump 31 to the external liquid pipe, and then absorb the catalyst and the absorption liquid through the peristaltic pump 31 and make them enter the interior of the water tank 33 through the water pipe 34. These liquids enter the interior of the water spray rack 37 through multiple corrugated pipes 312 and are sprayed out from the nozzles 12. At this time, start the motor 8 to drive the screw 38 to rotate. The rotation of the screw 38 drives the sleeve 39 to move. The movement of the sleeve 39 drives the movement of two connecting rods 311. The movement of the connecting rods 311 drives the movement of two sliders 310 in the chute 36. The movement of the sliders 310 drives the movement of the connecting strip 313. The movement of the connecting strip 313 drives the water spray rack 37 and the nozzles 12 to swing and discharge materials. At this time, after the liquid contacts the barbed rack 333, it drops in a granular form, and the movement of the slider 310 drives the movement of the connecting plate 41 on its side wall. The movement of the connecting plate 41 drives the movement of the hinge rod 43 on its side wall. The movement of the hinge rod 43 drives the U-shaped scraper 42 hinged to it to scrape and clean the inner wall of the blanking rack 32, thereby improving the use effect of the device.

[0030] The above text has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A device for measuring chemical oxygen demand of high-chlorine wastewater, comprising a lower cabinet (1), and an upper cabinet (2) is fixedly installed at the upper end of the lower cabinet (1), characterized in that: A partition plate (5) is fixedly installed on the inner wall of the lower cabinet body (1), a fixing plate (6) is fixedly installed on the inner wall of the lower cabinet body (1), a test box (7) is fixedly installed at the end of the fixing plate (6), and a blanking structure (3) is arranged inside the lower cabinet body (1). The blanking structure (3) includes: A peristaltic pump (31), the peristaltic pump (31) is fixedly installed on the inner wall of the upper cabinet body (2), a blanking rack (32) is fixedly installed on the inner wall of the upper cabinet body (2), a water tank (33) is fixedly installed on the inner wall of the blanking rack (32), one end of a water pipe (34) is fixedly installed on the side wall of the peristaltic pump (31), and the other end of the water pipe (34) is fixedly connected to the upper end of the water tank (33). Multiple groups of barbed racks (333) are fixedly installed on both sides of the inner wall of the blanking rack (32); A notch (35), the notch (35) is opened inside the water tank (33), sliding grooves (36) are opened on both sides of the lower end of the notch (35), water spraying racks (37) are hinged on both sides of the lower end of the water tank (33), a screw rod (38) is rotationally connected to the inner wall of the notch (35) through a bushing, a sleeve (39) is threadedly connected to the surface of the screw rod (38), a slider (310) is slidably connected to the inner wall of the sliding groove (36), one end of a connecting rod (311) is hinged to the upper end of the slider (310), and the other end of the connecting rod (311) is hinged to the sleeve (39); One end of two groups of corrugated pipes (312) is fixedly installed on the upper end of the water spraying rack (37), the other end of the corrugated pipe (312) is fixedly connected to the upper end of the water tank (33), one end of a connecting strip (313) is hinged to the lower end of the slider (310), the other end of the connecting strip (313) is hinged to the side wall of the water spraying rack (37), and a cleaning structure (4) is arranged inside the blanking rack (32).

2. The chemical oxygen demand measuring device for high-chlorine wastewater according to claim 1, wherein: The cleaning structure (4) includes one end of a connecting plate (41) fixedly installed on the side wall of the slider (310), U-shaped scraping plates (42) are slidably connected to both sides of the inner wall of the blanking rack (32), one end of a hinge rod (43) is hinged to the end of the connecting plate (41) far away from the slider (310), and the other end of the hinge rod (43) is hinged to the side wall of the U-shaped scraping plate (42).

3. The chemical oxygen demand measuring device for high-chlorine wastewater according to claim 1, wherein: A motor (8) is fixedly installed at the lower end of the water tank (33), and the output shaft of the motor (8) penetrates through the inner wall of the notch (35) and is fixedly connected to the lower end of the screw rod (38).

4. A device for measuring the chemical oxygen demand of high-chlorine wastewater according to claim 1, characterized in that: A lower cabinet door (9) is hinged on the side wall of the lower cabinet body (1), and an upper cabinet door (10) is hinged on the side wall of the upper cabinet body (2).

5. A device for measuring the chemical oxygen demand of high-chlorine wastewater according to claim 4, characterized in that: An operation screen (11) is arranged on the front surface of the upper cabinet door (10).

6. The chemical oxygen demand measuring device for high-chlorine wastewater according to claim 1, characterized in that: Spray nozzles (12) are arranged on the side wall of the water spraying rack (37).

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