Pretreatment device for online BOD (Biochemical Oxygen Demand) monitoring

By improving the structure of the pretreatment device and combining it with the conveyor motor and filter components, the problem of insufficient impurity removal and filtration capacity was solved, and efficient online BOD monitoring of water source filtration and detection was achieved.

CN224056771UActive Publication Date: 2026-03-31RES INST OF TSINGHUA PEARL RIVER DELTA +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing pretreatment devices have poor impurity removal and filtration capabilities, which makes it inconvenient to monitor the water source for online BOD and affects the treatment effect.

Method used

A pretreatment device was designed, comprising components such as a support base, storage box, filter box, impurity removal box, transition frame, feed chute, conveyor motor, and impurity removal screen. The impurity removal screen is driven to rotate by the conveyor motor, and the combination of sliding protrusions and fine filter screen achieves efficient impurity removal and filtration.

Benefits of technology

It improves the filtration capacity of online BOD monitoring water sources, ensures the cleaning and impurity treatment effect of the monitored water sources, facilitates the initial filtration of water sources and the detection of water sources in storage tanks, and enhances the overall treatment effect of the pretreatment device.

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Abstract

The utility model relates to the technical field of BOD (Biochemical Oxygen Demand) monitoring, and discloses a pretreatment device for online BOD monitoring, the pretreatment device for online BOD monitoring comprises a support base, a storage box, a filter box, an impurity removal box and an impurity removal screen plate, the storage box is fixedly arranged at the upper end of the support base, the filter box is fixedly arranged at the upper end of the storage box, and the impurity removal screen plate is fixedly arranged at the lower end of the filter box. An impurity removing box is fixedly arranged at the upper end of the filtering box, a transition frame is fixedly arranged at the upper end of the impurity removing box, a feeding groove is fixedly formed in the upper end of the transition frame, and a conveying motor is fixedly arranged at one end of the impurity removing box. According to the pretreatment device for online BOD monitoring, the pretreatment device is improved, so that the impurity removing and filtering capacity of the pretreatment device is improved, in the actual use process of the pretreatment device, an online BOD monitoring water source can be subjected to impurity removing treatment according to needs, filtering of the online BOD monitoring water source is facilitated, and the practicability of the pretreatment device is improved. The treatment effect of the pretreatment device for online BOD monitoring is improved.
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Description

Technical Field

[0001] This utility model relates to the field of BOD technology, specifically a pretreatment device for online BOD monitoring. Background Technology

[0002] BOD refers to the amount of dissolved oxygen consumed during the biochemical reactions of microorganisms decomposing biodegradable organic matter in water under certain conditions. It is expressed in milligrams per liter or as a percentage or ppm and is a comprehensive indicator reflecting the content of organic pollutants in water.

[0003] Existing technology publication CN218848133U discloses a pretreatment device, which further includes a pipeline. The filter has an inlet at its bottom and an outlet at its top for rinsing the filter screen. The detector includes a chloride ion detection probe and a chloride ion detector, with the chloride ion detection probe disposed in the sample storage. The industrial control computer sends the start-up time of the water pump to the analyzer. The pretreatment device includes a sample storage, a detector, a pure water storage, and an analyzer. The detector is used to obtain the chloride ion concentration of the wastewater in the sample storage. When the chloride ion concentration is greater than or equal to a predetermined value, pure water from the pure water storage is supplied to the sample storage; when the chloride ion concentration is less than the predetermined value, wastewater from the sample storage is supplied to the analyzer. The detector can obtain… The chloride ion concentration in the wastewater sample storage device is controlled. When the chloride ion concentration is less than a predetermined value (e.g., less than 1000 mg / L), the field personnel can pass the wastewater from the sample storage device to the analyzer. The analyzer analyzes the chemical oxygen demand (COD) in the industrial wastewater. When the chloride ion concentration is greater than or equal to a predetermined value (e.g., greater than or equal to 1000 mg / L), the field personnel can pass pure water from the pure water storage device to the sample storage device until the chloride ion concentration is less than a predetermined value (e.g., less than 1000 mg / L). Then, the field personnel can pass the wastewater from the sample storage device to the analyzer. The analyzer analyzes the COD in the industrial wastewater. Before the industrial wastewater enters the analyzer, the chloride ion concentration can be controlled to ensure that the chloride ion concentration in the industrial wastewater entering the analyzer is less than the predetermined value, thus not affecting the detection results of COD in the industrial wastewater.

[0004] However, in the existing technology CN218848133U patent, the pretreatment device has poor impurity removal and filtration capabilities, which makes it impossible to remove impurities from the online BOD monitoring water source as needed during the actual use of the pretreatment device. This makes it inconvenient to filter the online BOD monitoring water source and affects the treatment effect of the pretreatment device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a pretreatment device for online BOD monitoring, so as to solve the problem of poor impurity removal and filtration capabilities of the pretreatment devices mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment device for online BOD monitoring, comprising a support base, a storage box, a filter box, a removal box, a transition frame, a feed chute, a conveyor motor, a removal screen, a removal trough, a movable trough, a filter plate, a sliding protrusion, a fine filter screen, a movable plate, a movable locking block, a convenient handle, a detection ring, a discharge trough, a discharge nozzle, an electric push rod, a push rod, a caster wheel, a lifting handle, a sampling trough, and a limiting plate. The upper end of the support base is fixedly equipped with a storage box. A filter box is fixedly installed at the upper end of the storage box, a removal box is fixedly installed at the upper end of the filter box, a transition frame is fixedly installed at the upper end of the removal box, a feed chute is fixedly installed at the upper end of the transition frame, a conveyor motor is fixedly installed at one end of the removal box, a removal screen plate is fixedly installed at one end of the conveyor motor, a removal trough is fixedly installed at the other end of the removal box, a movable trough is fixedly installed at one end of the filter box, a filter plate is movably installed inside the movable trough, a sliding protrusion is fixedly installed at one end of the filter plate, and a fine filter screen plate is fixedly installed at the upper end of the filter plate.

[0009] Preferably, a movable plate is fixedly provided at the other end of the filter plate, and a movable locking block is movably provided at the upper end of the movable plate. Through the improvement of the pretreatment device, the impurity removal and filtration capability of the pretreatment device is improved. In the actual use of the pretreatment device, the online BOD monitoring water source can be cleaned as needed, which facilitates the filtration of the online BOD monitoring water source and improves the treatment effect of the pretreatment device used for online BOD monitoring.

[0010] Preferably, a convenient handle is fixedly provided at the other end of the filter plate, and a detection ring is fixedly provided at the upper end of the storage box. By turning on the conveyor motor, the impurity removal screen plate is driven to rotate, and the impurities are discharged from the impurity removal tank. Then, by injecting the pre-treated water source into the filter box, the water source is filtered through the sliding protrusion and the fine filter screen plate. The convenient handle makes it easy to pull out and clean the filter plate.

[0011] Preferably, a discharge trough is fixedly provided at one end of the storage box, and a discharge nozzle is fixedly provided at the upper end of the storage box. By injecting the retreated water into the storage box, and then using the detection ring, lifting handle, sampling trough and limiting plate, the water in the storage box can be easily detected.

[0012] Preferably, an electric push rod is fixedly installed at the lower end of the support base, and a push rod is fixedly installed at the lower end of the electric push rod. The use of the discharge nozzle facilitates the connection of the connecting pipe and the pumping detection of the online BOD monitoring device.

[0013] Preferably, the lower end of the push rod is fixedly provided with a swivel wheel, and the upper side of the detection ring is movably provided with a lifting handle. By using the swivel wheel, the pretreatment device for online BOD monitoring is moved to a suitable position. Then, by controlling the extension and retraction of the electric push rod and the push rod, the support base and storage box are moved to a horizontal height. Then, by using the feed chute, the online BOD monitoring water source is injected.

[0014] Preferably, a sampling slot is fixedly provided at the lower end of the lifting handle, and a limiting plate is fixedly provided at the lower end of the sampling slot. The monitoring water source is treated by the impurity removal box and the transition frame, and then the impurity removal screen plate facilitates the impurity removal and filtration of the monitoring water source.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The pretreatment device for online BOD monitoring improves the cleaning and filtration capabilities of the device. In actual use, the water source for online BOD monitoring can be cleaned as needed, facilitating filtration and improving the treatment effect of the device.

[0017] 2. This pretreatment device for online BOD monitoring uses a conveyor motor to rotate a filter screen, discharging impurities from the filter tank. The pre-treated water is then injected into a filter box, where it is filtered through sliding protrusions and a fine filter screen. A convenient handle facilitates the removal and cleaning of the filter plate. The re-treated water is then injected into a storage tank. A detection ring, lifting handle, sampling slot, and limiting plate facilitate the detection of water within the storage tank. Finally, a discharge nozzle facilitates the connection of the connecting pipes, enabling the online BOD monitoring device to perform pumping and detection.

[0018] 3. The pretreatment device for online BOD monitoring uses casters to move it to a suitable position. Then, by controlling the extension and retraction of the electric push rod and the push rod, the support base and storage box are moved to a horizontal height. The water source for online BOD monitoring is then injected through the feed chute. The water source is then treated through the impurity removal box and the transition frame. Finally, the impurity removal screen facilitates the filtration of the water source. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the storage box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the filter plate structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the sampling groove structure of this utility model.

[0023] In the diagram: 1. Support base; 2. Storage box; 3. Filter box; 4. Impurity removal box; 5. Transition frame; 6. Feed chute; 7. Conveyor motor; 8. Impurity removal screen; 9. Impurity removal trough; 10. Movable trough; 11. Filter plate; 12. Sliding protrusion; 13. Fine filter screen; 14. Movable plate; 15. Movable locking block; 16. Convenient handle; 17. Detection ring; 18. Discharge chute; 19. Discharge nozzle; 20. Electric push rod one; 21. Push rod one; 22. Casters; 23. Lifting handle; 24. Sampling trough; 25. Limiting plate. 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 protection scope of the present utility model.

[0025] Please see Figures 1-4This utility model provides a technical solution: a pretreatment device for online BOD monitoring, which includes a support base 1, a storage box 2, a filter box 3, a removal box 4, a transition frame 5, a feed chute 6, a conveyor motor 7, a removal screen 8, a removal trough 9, a movable trough 10, a filter plate 11, a sliding protrusion 12, a fine filter screen 13, a movable plate 14, a movable locking block 15, a convenient handle 16, a detection ring 17, a discharge chute 18, a discharge nozzle 19, an electric push rod 20, a push rod 21, a caster wheel 22, a lifting handle 23, a sampling trough 24, and a limiting plate 25. The support base 1... A storage box 2 is fixedly installed at the upper end. A filter box 3 is fixedly installed at the upper end of the storage box 2. A cleaning box 4 is fixedly installed at the upper end of the filter box 3. A transition frame 5 is fixedly installed at the upper end of the cleaning box 4. A feed chute 6 is fixedly installed at the upper end of the transition frame 5. A conveyor motor 7 is fixedly installed at one end of the cleaning box 4. A cleaning screen plate 8 is fixedly installed at one end of the conveyor motor 7. A cleaning trough 9 is fixedly installed at the other end of the cleaning box 4. A movable trough 10 is fixedly installed at one end of the filter box 3. A filter plate 11 is movably installed inside the movable trough 10. A sliding protrusion 12 is fixedly installed at one end of the filter plate 11. A fine filter screen plate 13 is fixedly installed at the upper end of the filter plate 11.

[0026] A movable plate 14 is fixedly installed at the other end of the filter plate 11. A movable locking block 15 is movably installed at the upper end of the movable plate 14. A convenient handle 16 is fixedly installed at the other end of the filter plate 11. A detection ring 17 is fixedly installed at the upper end of the storage tank 2. A discharge trough 18 is fixedly installed at one end of the storage tank 2. A discharge nozzle 19 is fixedly installed at the upper end of the storage tank 2. By turning on the conveyor motor 7, the impurity removal screen 8 is driven to rotate, and the impurities are discharged from the impurity removal trough 9. Then, the pre-treated water source is injected into the filter tank 3. Then, the water source of the pre-treated water source is filtered through the sliding protrusion 12 and the fine filter screen 13. Then, the use of the convenient handle 16 makes it easy to pull out and clean the filter plate 11. Then, the re-treated water source is injected into the storage tank 2. Then, the use of the detection ring 17, the lifting handle 23, the sampling trough 24 and the limiting plate 25 makes it easy to detect the water source in the storage tank 2. Then, the use of the discharge nozzle 19 makes it easy to connect the connecting pipe and facilitate the water pumping detection of the online BOD monitoring device.

[0027] An electric push rod 20 is fixedly installed at the lower end of the support base 1. A push rod 21 is fixedly installed at the lower end of the electric push rod 20. A caster wheel 22 is fixedly installed at the lower end of the push rod 21. A lifting handle 23 is movably installed on the upper side of the detection ring 17. A sampling slot 24 is fixedly installed at the lower end of the lifting handle 23. A limit plate 25 is fixedly installed at the lower end of the sampling slot 24. By using the caster wheel 22, the pretreatment device for online BOD monitoring is moved to a suitable position. Then, by controlling the extension and retraction of the electric push rod 20 and the push rod 21, the support base 1 and the storage box 2 are moved to a horizontal height. Then, by using the feed chute 6, the online BOD monitoring water source is injected. Then, the monitoring water source is treated by the impurity removal box 4 and the transition frame 5. Finally, the impurity removal screen 8 facilitates the impurity removal and filtration of the monitoring water source.

[0028] Working principle: First, the pretreatment device for online BOD monitoring is moved to a suitable position using the casters 22. Then, by controlling the extension and retraction of the electric push rod 20 and push rod 21, the support base 1 and storage tank 2 are moved to a horizontal level. Next, the online BOD monitoring water source is injected through the feed trough 6. Then, the monitoring water source is treated through the impurity removal tank 4 and transition frame 5. The impurity removal screen 8 facilitates the filtration of impurities from the monitoring water source. Finally, the conveyor motor 7 is activated, causing the impurity removal screen 8 to rotate, removing impurities from the impurity removal tank 9. The water is discharged, and then the pre-treated water is injected into the filter box 3. The water is then filtered through the sliding protrusion 12 and the fine filter screen 13. The filter plate 11 is then easily removed and cleaned by using the convenient handle 16. The re-treated water is then injected into the storage tank 2. The water in the storage tank 2 is then easily detected by using the detection ring 17, the lifting handle 23, the sampling slot 24 and the limiting plate 25. The connection of the connecting pipe is facilitated by using the discharge nozzle 19, which facilitates the pumping detection of the online BOD monitoring device.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A pretreatment device for online BOD monitoring, the pretreatment device for online BOD monitoring comprising a support base (1), a storage tank (2), a filter tank (3), a dedusting tank (4), a transition frame (5), a feeding groove (6), a conveying motor (7), a dedusting mesh plate (8), a dedusting groove (9), a movable groove (10), a filter plate (11), a sliding lug (12) and a fine filter mesh plate (13), characterized in that: The upper end of the support base (1) is fixedly provided with a storage box (2), the upper end of the storage box (2) is fixedly provided with a filter box (3), the upper end of the filter box (3) is fixedly provided with a impurity removal box (4), the upper end of the impurity removal box (4) is fixedly provided with a transition frame (5), the upper end of the transition frame (5) is fixedly provided with a feeding groove (6), one end of the impurity removal box (4) is fixedly provided with a conveying motor (7); One end of the conveying motor (7) is fixedly provided with an impurity removal net plate (8), the other end of the impurity removal box (4) is fixedly provided with an impurity removal groove (9), one end of the filter box (3) is fixedly provided with a movable groove (10), the inside of the movable groove (10) is movably provided with a filter plate (11), one end of the filter plate (11) is fixedly provided with a sliding protrusion (12), the upper end of the filter plate (11) is fixedly provided with a fine filter net plate (13).

2. A pre-treatment device for online BOD monitoring according to claim 1, characterized in that: The other end of the filter plate (11) is fixedly provided with a movable plate (14), the upper end of the movable plate (14) is movably provided with a movable clamping block (15).

3. A pre-treatment device for online BOD monitoring according to claim 2, characterized in that: The other end of the filter plate (11) is fixedly provided with a convenient handle (16), the upper end of the storage box (2) is fixedly provided with a detection ring (17).

4. A pre-treatment device for online BOD monitoring according to claim 3, characterized in that: One end of the storage box (2) is fixedly provided with a discharge groove (18), the upper end of the storage box (2) is fixedly provided with a discharge nozzle (19).

5. A pre-treatment device for online BOD monitoring according to claim 4, characterized in that: The lower end of the support base (1) is fixedly provided with an electric push rod one (20), the lower end of the electric push rod one (20) is fixedly provided with a push rod one (21).

6. A pre-treatment device for online BOD monitoring according to claim 5, characterized in that: The lower end of the push rod one (21) is fixedly provided with a movable universal wheel (22), the upper side of the detection ring (17) is movably provided with a lifting handle (23).

7. A pre-treatment device for online BOD monitoring according to claim 6, characterized in that: The lower end of the lifting handle (23) is fixedly provided with a sampling groove (24), the lower end of the sampling groove (24) is fixedly provided with a limiting disc (25). The lower end of the lifting handle (23) is fixedly provided with a sampling groove (24), the lower end of the sampling groove (24) is fixedly provided with a limiting disc (25).

Citation Information

Patent Citations

  • Pretreatment device

    CN218848133U