Automatic dosing device for reducing oil sludge

Abstract

The utility model discloses an automatic dosing device for reducing oil sludge in the technical field of water treatment, which comprises a medicine mixing box and an oil sludge box, a liquid level alarm device is mounted on the medicine mixing box, and the liquid level alarm device comprises a liquid level detector and a liquid level alarm; the liquid level detector is located at the side end of the pesticide mixing box and communicated with the liquid level sensor located in the pesticide mixing box. The liquid level alarm is electrically connected with the liquid level detector and is used for giving an alarm when the liquid level detector reaches the upper limit or the lower limit of detection; the bottom end of the medicine mixing box is communicated with a medicine supply pump through a Y-shaped filter, and the medicine supply pump is communicated with the oil sludge box; the oil sludge pool is provided with a viscosity control device, and the viscosity control device comprises a viscosity sensor and a chemical supply pump frequency converter; the viscosity sensor is located in the oil sludge pool and used for outputting voltage according to the viscosity of the oil sludge pool; the chemical supply pump frequency converter is electrically connected with the viscosity sensor, and the flow of the chemical supply pump is controlled through the viscosity of the oil sludge pool. According to the utility model, the viscosity of the medicament is adjusted in time as required, and the oil sludge reduction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an automatic dosing device for reducing oil sludge. Background Art

[0002] With the development of petrochemical enterprises, more and more storage pools or tanks need to be cleaned. How to deal with the cleaned sludge containing oil, water and mud is a difficult problem. If it is directly treated as hazardous waste, it will not only waste resources, but also be too costly. Nowadays, most companies reduce the cleaned sludge through oil recovery, water circulation, and mud cake transportation, saving money while protecting the environment and saving energy. However, at present, most of them rely on experienced technical workers to manually add solid or water-soluble agents to achieve the effect of reducing the cleaned sludge, but there is no standard for the amount of drugs, and it is completely controlled by experienced technicians based on their feelings.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0004] The utility model aims to provide an automatic dosing device for reducing oil sludge, which can timely adjust the viscosity of the agent according to the demand and increase the efficiency of reducing the oil sludge.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] The utility model provides an automatic dosing device for reducing oil sludge, comprising a medicine mixing box and an oil sludge pool, wherein the medicine mixing box is equipped with a liquid level alarm device, wherein the liquid level alarm device comprises a liquid level detector and a liquid level alarm; the liquid level detector is located at a side end of the medicine mixing box and is connected to a liquid level sensor located inside the medicine mixing box; the liquid level alarm is electrically connected to the liquid level detector and is used to alarm when the liquid level detector reaches an upper or lower detection limit;

[0007] The bottom end of the medicine mixing box is connected to the medicine supply pump through a Y-type filter, and the medicine supply pump is connected to the oil sludge pool;

[0008] The oil sludge pool is installed with a viscosity control device, which includes a viscosity sensor and a drug supply pump frequency converter; the viscosity sensor is located inside the oil sludge pool and is used to output a voltage according to the viscosity of the oil sludge pool; the drug supply pump frequency converter is electrically connected to the viscosity sensor and controls the flow rate of the drug supply pump through the viscosity of the oil sludge pool.

[0009] Optionally, the left end of the medicine mixing box is connected to a water supply pump, the right end is provided with a medicine adding port, and a concentration sensor is provided inside, and the concentration sensor is electrically connected to a concentration display.

[0010] Optionally, the liquid level alarm device includes a protection module, which is electrically connected to a water supply pump and a medicine supply pump. When the liquid level detector reaches the upper detection limit, the protection module disconnects from the water supply pump to stop the water supply pump; when the liquid level detector reaches the lower detection limit, the protection module disconnects from the medicine supply pump to stop the medicine supply pump.

[0011] Optionally, a sewage ball valve is provided at the bottom of the medicine mixing box, and the sewage ball valve is connected to a sewage tank.

[0012] Optionally, the medicine mixing box and the oil sludge pool are both provided with a stirring device, and the stirring device includes a stirring propeller located in the box body and a motor located at the top of the box body and connected to one end of the stirring propeller.

[0013] Optionally, the oil sludge pool is further provided with a viscosity detector, which is connected to the viscosity sensor and is used to display the viscosity of the oil sludge pool.

[0014] Optionally, the detection range of the concentration sensor is 0%~1%, and the corresponding output voltage is 0~10V;

[0015] The detection range of the viscosity sensor is 0-200 mPa·s, and the corresponding output voltage is 0-10V.

[0016] Optionally, the viscosity sensor outputs an analog quantity through internal PID calculation, which is connected to the analog quantity input terminal of the drug supply pump frequency converter, so as to control the flow rate of the drug supply pump.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. Automatically control the liquid level in the mixing box through the liquid level alarm device to avoid the water level being too high or too low;

[0019] 2. Viscosity detection can be used to sense the viscosity of the sludge in real time, and then the reduction of the sludge can be adjusted through the frequency converter of the drug supply pump to improve the efficiency of reduction;

[0020] 3. The liquid level detector, concentration display and viscosity detector can display the liquid level, reagent concentration and sludge viscosity of the mixing box in real time for easy inspection;

[0021] 4. Through the stirring device, the medicine and water in the mixing box are fully mixed, and the medicine and sludge in the sludge pool are fully mixed to reduce the reaction time and increase the reaction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is the main circuit diagram of the utility model;

[0025] Figure 3 This is the viscosity control circuit diagram of the utility model.

[0026] Description of reference numerals:

[0027] 1-water supply pump; 2-ball valve at water supply pump end; 3-liquid level meter; 4-stirring motor; 5-dosing port; 6-drug mixing box; 7-stirring propeller; 8-drug concentration detection sensor; 9-drain ball valve; 10-drain tank; 11-drug supply end ball valve; 12-Y-type filter; 13-drug supply pump; 14-viscosity detection sensor; 15-sludge pool end ball valve; 16-sludge pool. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use.

[0029] This embodiment provides an automatic dosing device for reducing oil sludge, such as Figure 1 As shown, it includes a medicine mixing box 6 and an oil sludge pool 16, the medicine mixing box 6 is equipped with a liquid level alarm device, and the liquid level alarm device includes a liquid level detector 3 and a liquid level alarm; the liquid level detector 3 is located at the side end of the medicine mixing box 6, and is connected to the liquid level sensor located inside the medicine mixing box 6; the liquid level alarm is electrically connected to the liquid level detector 3, and is used to alarm when the liquid level detector 3 reaches the upper or lower detection limit;

[0030] The bottom end of the medicine mixing box 6 is connected to the medicine supply pump 13 through a Y-type filter 12, and the medicine supply pump 13 is connected to the oil sludge pool 16;

[0031] The oil sludge pool 16 is installed with a viscosity control device, which includes a viscosity sensor 14 and a drug supply pump inverter; the viscosity sensor 14 is located inside the oil sludge pool 16, and is used to output a voltage according to the viscosity of the oil sludge pool 16; the drug supply pump inverter is electrically connected to the viscosity sensor 14, and controls the flow rate of the drug supply pump 13 through the viscosity of the oil sludge pool 16.

[0032] In a specific implementation of this embodiment, the left end of the medicine mixing box 6 is connected to the water supply pump 1, the right end is provided with a medicine adding port 5, and a concentration sensor 8 is provided inside. The concentration sensor 8 is electrically connected to the concentration display.

[0033] In the embodiment, the water supply pump 1 is connected to the medicine mixing box 6 through the ball valve 2 at the water supply pump end, and the medicine supply pump 13 is connected to the oil sludge pool 16 through the ball valve 15 at the oil sludge pool end.

[0034] In actual operation, the concentration of the medicine in the medicine mixing box 6 is preferably 0.3%-0.5%.

[0035] The liquid level alarm device includes a protection module, which is electrically connected to the water supply pump 1 and the drug supply pump 13. When the liquid level detector 3 reaches the upper detection limit, the protection module disconnects from the water supply pump 1, causing the water supply pump 1 to stop working; when the liquid level detector 3 reaches the lower detection limit, the protection module disconnects from the drug supply pump 13, causing the drug supply pump 13 to stop working.

[0036] In the embodiment, when the amount of water added reaches one cubic meter, the upper limit of the liquid level detector 3 is reached. At this time, about four kilograms of medicine is added from the dosing port 5. After complete dissolution, the concentration display should show about 0.4%, which is exactly between 0.3% and 0.5%; if the concentration is not within this range and there is a slight deviation, it is necessary to add water or medicine for fine-tuning to make it meet the concentration range.

[0037] In a specific implementation of this embodiment, a sewage discharge ball valve 9 is provided at the bottom of the medicine mixing box 6 , and the sewage discharge ball valve 9 is connected to a sewage discharge tank 10 .

[0038] The medicine mixing box 6 and the oil sludge pool 16 are both provided with a stirring device, and the stirring device includes a stirring propeller 7 located in the box body and a motor 4 located at the top of the box body and connected to one end of the stirring propeller 7. Through the stirring device, the medicine and water in the medicine mixing box 6 are fully mixed, and the medicine and oil sludge in the oil sludge pool 16 are fully mixed to reduce the reaction time and increase the reaction effect.

[0039] In a specific implementation of this embodiment, the oil sludge pool 16 is also provided with a viscosity detector, which is connected to the viscosity sensor 14 and is used to display the viscosity of the oil sludge pool 16. According to actual measurements, the treatment effect is best when the viscosity in the oil sludge pool 16 is 80mPa·s at room temperature.

[0040] In a specific implementation of this embodiment, the detection range of the concentration sensor 8 is 0%~1%, and the corresponding output voltage is 0~10V; if the concentration range exceeds the preset value, the output voltage is maintained at an upper limit of 10V.

[0041] The detection range of the viscosity sensor 14 is 0-200 mPa·s, and the corresponding output voltage is 0-10 V. If the viscosity range exceeds the preset value, the output voltage is maintained at the upper limit of 10 V.

[0042] The viscosity sensor 14 outputs an analog quantity through internal PID calculation, which is connected to the analog quantity input terminal of the drug supply pump frequency converter, thereby controlling the flow rate of the drug supply pump 13 .

[0043] How it works

[0044] When it is necessary to add medicine, the sludge to be added is loaded into the sludge pool 16, and the sewage discharge ball valve 9 at the bottom of the medicine mixing box 6 is closed.

[0045] When mixing medicines, close the drain ball valve 9 at the bottom of the medicine mixing box 6, open the remaining valves and the water supply pump 1; when the water supply pump 1 adds water to the upper limit of the liquid level detector 3, the water supply pump 1 stops working; at this time, turn on the stirring motor 4 corresponding to the medicine mixing box 6 to fully mix the medicine with water, and after the concentration of the medicine in the medicine mixing box 6 is appropriate, turn on the stirring motor 4 and the medicine supply pump 13 corresponding to the sludge pool 16. With the operation of the stirring motor 4 and the medicine supply pump 13 corresponding to the sludge pool 16, more and more medicines are in the sludge pool 16, the reaction effect of the medicine and the sludge is getting better and better, and the viscosity in the sludge pool 16 will also be lower and lower.

[0046] The viscosity sensor 14 outputs an analog quantity through internal PID calculation, which is connected to the analog quantity input terminal of the drug supply pump frequency converter, thereby controlling the flow rate of the drug supply pump 13 to achieve a suitable concentration.

[0047] As the reduction proceeds, sludge can be continuously added to the sludge pool 16. At this time, the drug supply pump 13 will automatically adjust the dosage as the sludge is added to ensure that the viscosity level in the sludge pool 16 meets the requirements, thereby realizing the function of automatic drug addition.

[0048] When the liquid level in the medicine mixing box 6 reaches the lower limit of the liquid level detector 3, the medicine supply pump 13 stops working, and the medicine needs to be re-mixed.

[0049] like Figure 2 The main circuit diagram of the utility model is shown in FIG. 1 , through which the operation of the water supply pump 1, the drug supply pump 13, the stirring device, the concentration detection and the viscosity detection can be controlled; Figure 3The figure shows the viscosity control circuit diagram of the utility model. The viscosity control circuit is used to sense the viscosity of the oil sludge in real time, and then the reduction of the oil sludge is adjusted by the frequency converter of the drug supply pump to improve the efficiency of the reduction.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic dosing device for reducing oil sludge, comprising a drug mixing box (6) and an oil sludge pool (16), characterized in that: The medicine mixing box (6) is equipped with a liquid level alarm device, the liquid level alarm device comprising a liquid level detector (3) and a liquid level alarm; the liquid level detector (3) is located at the side end of the medicine mixing box (6) and is connected to a liquid level sensor located inside the medicine mixing box (6); the liquid level alarm is electrically connected to the liquid level detector (3) and is used to alarm when the liquid level detector (3) reaches an upper detection limit or a lower detection limit; The bottom end of the medicine mixing box (6) is connected to the medicine supply pump (13) through a Y-type filter (12), and the medicine supply pump (13) is connected to the oil sludge pool (16); The oil sludge pool (16) is equipped with a viscosity control device, the viscosity control device comprising a viscosity sensor (14) and a drug supply pump frequency converter; the viscosity sensor (14) is located inside the oil sludge pool (16) and is used to output a voltage according to the viscosity of the oil sludge pool (16); the drug supply pump frequency converter is electrically connected to the viscosity sensor (14) and controls the flow rate of the drug supply pump (13) according to the viscosity of the oil sludge pool (16).

2. The automatic dosing device for reducing oil sludge according to claim 1, characterized in that: The left end of the drug mixing box (6) is connected to the water supply pump (1), the right end is provided with a drug adding port (5), and a concentration sensor (8) is provided inside, and the concentration sensor (8) is electrically connected to the concentration display.

3. The automatic dosing device for reducing oil sludge according to claim 2, characterized in that: The liquid level alarm device comprises a protection module, the protection module being electrically connected to a water supply pump (1) and a drug supply pump (13); when the liquid level detector (3) reaches an upper detection limit, the protection module disconnects from the water supply pump (1), causing the water supply pump (1) to stop working; and when the liquid level detector (3) reaches a lower detection limit, the protection module disconnects from the drug supply pump (13), causing the drug supply pump (13) to stop working.

4. The automatic dosing device for reducing oil sludge according to claim 1, characterized in that: A sewage discharge ball valve (9) is provided at the bottom of the medicine mixing box (6), and the sewage discharge ball valve (9) is connected to a sewage discharge tank (10).

5. The automatic dosing device for reducing oil sludge according to claim 1, characterized in that: The medicine mixing box (6) and the oil sludge pool (16) are both provided with a stirring device, and the stirring device comprises a stirring propeller (7) located in the box body and a motor (4) located at the top of the box body and connected to one end of the stirring propeller (7).

6. The automatic dosing device for reducing oil sludge according to claim 1, characterized in that: The oil sludge pool (16) is also provided with a viscosity detector, which is connected to the viscosity sensor (14) and is used to display the viscosity of the oil sludge pool (16).

7. The automatic dosing device for reducing oil sludge according to claim 2, characterized in that: The detection range of the concentration sensor (8) is 0% to 1%, and the corresponding output voltage is 0 to 10V; The detection range of the viscosity sensor (14) is 0-200 mPa·s, and the corresponding output voltage is 0-10 V.

8. The automatic dosing device for reducing oil sludge according to claim 1, characterized in that: The viscosity sensor (14) outputs an analog quantity through internal PID calculation, which is connected to the analog quantity input terminal of the drug supply pump frequency converter, thereby controlling the flow rate of the drug supply pump (13).

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