Reaction system for treating potassium permanganate waste liquid and batch reaction barrel

Abstract

The utility model discloses a reaction system for treating potassium permanganate waste liquid and a batch reaction barrel. A potassium permanganate waste liquid discharge pipeline is connected with the batch reaction barrel; the batch reaction barrel is used for conveying completely reacted potassium permanganate waste liquid to the potassium permanganate collecting barrel through a first pipeline; waste liquid in the potassium permanganate collecting barrel is conveyed to the acid-alkali wastewater standing pool through a second pipeline. The batch reaction barrel is provided with a NaHSO3 dosing pump; a floating ball liquid level meter and a stirring device are arranged on the batch reaction barrel; and when the floating ball liquid level meter rises to a specified liquid level, the NaHSO3 dosing pump and the stirring device are started at the same time. The device designed by the utility model can be used for simply and efficiently treating the potassium permanganate waste liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid treatment, in particular to a reaction system and a batch reaction barrel for treating potassium permanganate waste liquid. Background Art

[0002] The existing waste liquid collection room potassium permanganate waste liquid (1300L / month) is directly discharged into the acid-base wastewater pool, and sodium bisulfite is added to the acid-base wastewater pool for redox reaction. The current problem with this treatment method is that the acid-base waste liquid is directly discharged into the acid-base wastewater pool, which is relatively large. Adding sodium bisulfite to the acid-base wastewater pool for reaction will lead to insufficient reaction; in addition, potassium permanganate is dark purple in color. When the redox reaction is insufficient, the acid-base wastewater is light purple, which affects the COD measurement of the Parshall trough and poses a risk of exceeding the environmental protection data; potassium permanganate is an oxidant. After being discharged into the acid-base wastewater pool, it can oxidize organic matter to precipitate and form sludge flocs, which leads to an increase in suspended matter, affects the pH meter measurement value, and affects the drainage stability of the Parshall trough.

[0003] Therefore, it is necessary to propose a reaction system and a batch reaction barrel for treating potassium permanganate waste liquid in view of the above problems. Utility Model Content

[0004] The utility model aims to provide a reaction system and a batch reaction barrel for treating potassium permanganate waste liquid.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A reaction system for treating potassium permanganate waste liquid comprises a potassium permanganate waste liquid discharge pipeline, wherein the potassium permanganate waste liquid discharge pipeline is connected to a batch reaction barrel; the batch reaction barrel transports the potassium permanganate waste liquid with complete reaction to a potassium permanganate collection barrel through a first pipeline; the waste liquid in the potassium permanganate collection barrel is transported to an acid-base wastewater static tank through a second pipeline.

[0007] On the other hand, the utility model provides a batch reaction barrel, including a NaHSO3 dosing pump for conveying NaHSO3 into the batch reaction barrel; a float level gauge and a stirring device are arranged on the batch reaction barrel; when the float level gauge rises to a specified liquid level, the NaHSO3 dosing pump and the stirring device are started simultaneously.

[0008] Preferably, the float level gauge comprises a hollow pipe, the lower end of which is arranged inside the batch reaction barrel; a guide wheel for lifting the first sphere and the second sphere is arranged at the upper end of the hollow pipe; the first sphere is connected to the second sphere by a traction rope.

[0009] Preferably, the batch reaction barrel is also provided with an acid exhaust pipeline.

[0010] Preferably, the stirring device is an aeration pipe arranged on the batch reaction tank.

[0011] Preferably, the stirring device comprises a motor, the motor is connected to a stirring rod, and blades are arranged on the stirring rod.

[0012] Preferably, the batch reaction barrel is sequentially connected to the fourth pipeline, the delivery pump, the fifth pipeline and the third pipeline to form a circulation pipeline.

[0013] Preferably, a Y-type filter is provided between the fourth pipeline and the delivery pump.

[0014] Preferably, a three-way valve is further provided between the third pipeline and the fifth pipeline.

[0015] The utility model has the beneficial effects:

[0016] 1. The utility model designs a system consisting of a batch reaction barrel, a potassium permanganate collection barrel, an acid-base wastewater standing tank, a first pipeline and a second pipeline for treating potassium permanganate waste liquid. Compared with the previous method of directly discharging the potassium permanganate waste liquid into the acid-base wastewater tank, this system sets a batch reaction barrel, adds NaHSO3 into the batch reaction barrel for batch treatment, achieves the purpose of sufficient reaction, and then discharges the potassium permanganate waste liquid after the sufficient reaction into the potassium permanganate collection barrel and the acid-base wastewater standing tank in sequence.

[0017] 2. The utility model arranges a dosing pump, a stirring device and a float level gauge on the batch reaction barrel. After the waste liquid enters the batch reaction barrel, the float level gauge rises with the liquid level. When the float level gauge rises to the specified liquid level, the dosing pump is started to start the injection of medicine, and the stirring device is turned on to allow the liquid medicine and the waste liquid to fully react. In the process of coordinated use of the dosing pump, the stirring device and the float level gauge, the reaction effect of the waste liquid and the liquid medicine is simply and efficiently improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the specific structure of the batch barrel of Example 1;

[0020] Figure 3 This is a schematic diagram of the specific structure of the batch barrel in Example 2.

[0021] Reference numerals:

[0022] 1- potassium permanganate waste liquid discharge pipeline, 2- batch reaction barrel, 3- first pipeline, 4- potassium permanganate collection barrel, 5- second pipeline, 6- acid and alkali wastewater static tank, 21- NaHSO3 dosing pump, 22- float level gauge, 221- first sphere, 222- traction rope, 223- guide wheel, 224- second sphere, 225- hollow pipe, 24- motor, 25- stirring stick, 26- blade, 27- acid exhaust pipeline, 28- aeration pipe, 29- third pipeline, 210- three-way valve, 211- Y-type filter, 212- delivery pump, 213- fourth pipeline, 214- fifth pipeline DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do 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 on the present utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" 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 indirectly connected 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 according to specific circumstances.

[0026] A reaction system for treating potassium permanganate waste liquid comprises a potassium permanganate waste liquid discharge pipeline 1, wherein the potassium permanganate waste liquid discharge pipeline 1 is connected to a batch reaction barrel 2; the batch reaction barrel 2 transports the reacted potassium permanganate waste liquid to a potassium permanganate collection barrel 4 through a first pipeline 3; the waste liquid in the potassium permanganate collection barrel 4 is transported to an acid-base wastewater static tank 6 through a second pipeline 5.

[0027] A batch reaction barrel, comprising a NaHSO3 dosing pump 21 for conveying NaHSO3 into a batch reaction barrel 2, a float level gauge 22 and a stirring device are arranged on the batch reaction barrel 2, when the float level gauge 22 rises to a specified liquid level, the NaHSO3 dosing pump 21 and the stirring device are started simultaneously; specifically, the float level gauge 22 comprises a hollow pipe 225, the lower end of the hollow pipe 225 is arranged inside the batch reaction barrel 2; the upper end of the hollow pipe 225 is arranged with a guide wheel 223 for lifting a first sphere 221 and a second sphere 224; the first sphere 221 is connected to the second sphere 224 via a traction rope 222; the specific structure of the stirring device for implementing the stirring function may include a motor 24, the motor 24 is connected to a stirring rod 25, the stirring rod 25 is provided with blades 26, or it may be an aeration pipe 28 arranged in the reaction barrel 2.

[0028] Specifically, the batch reaction barrel 2 is further provided with an acid exhaust pipeline 27, and the acid exhaust pipeline 27 is used for exhausting acid gas.

[0029] Specifically, the batch reaction barrel 2 is connected in sequence to the fourth pipeline 213, the delivery pump 212, the fifth pipeline 214 and the third pipeline 29 to form a circulation pipeline; the delivery pump 212 can be specifically an acid-resistant and alkali-resistant magnetic pump; when the stirring device cannot perform the mixing and stirring functions, the circulation pipeline formed by the fourth pipeline 213, the delivery pump 212, the fifth pipeline 214 and the third pipeline 29 connected in sequence can form an internal circulation to allow the liquid to react fully.

[0030] Specifically, a Y-type filter 211 is provided between the fourth pipeline 213 and the delivery pump 212 , and the Y-type filter 211 can prevent the pump head blades from being worn due to the suction of foreign matter.

[0031] Specifically, a three-way valve 210 is provided between the third pipeline 29 and the fifth pipeline 214. The three-way valve 210 is used for managing or switching the reaction barrel during transportation.

[0032] Working principle: After the waste liquid enters the batch reaction barrel 2, the second ball 224 in the float level gauge 22 rises with the liquid level. After the second ball 224 rises to the set liquid level, the NaHSO3 dosing pump 21 is started to start the injection, and the stirring device is turned on. After the reducing agent injection is completed, the stirring device is turned off, and finally the qualified waste liquid is transferred to the acid and alkali wastewater pool for dilution and discharge.

[0033] Example 1

[0034] like Figure 2As shown, a batch reaction barrel comprises a NaHSO3 dosing pump 21 for conveying NaHSO3 into the batch reaction barrel 2, a float level gauge 22 and a stirring device are arranged on the batch reaction barrel 2, the float level gauge 22 comprises a hollow pipe 225, the lower end of the hollow pipe 225 is arranged inside the batch reaction barrel 2; a guide wheel 223 for lifting a first sphere 221 and a second sphere 224 is arranged on the upper end of the hollow pipe 225; the first sphere 221 is connected to the second sphere 224 by a traction rope 222; the stirring device comprises a motor 24, the motor 24 is connected to a stirring rod 25, and a blade 26 is arranged on the stirring rod 25; when the float level gauge 22 rises to a specified liquid level, the NaHSO3 dosing pump 21 and the motor 24 of the stirring device are started at the same time, and the motor 24 drives the stirring rod 25 to stir and mix. The batch reaction barrel 2 is also provided with an acid exhaust pipeline 27; the batch reaction barrel 2 is sequentially connected to the fourth pipeline 213, the delivery pump 212, the fifth pipeline 214 and the third pipeline 29 to form a circulation pipeline; a Y-type filter 211 is provided between the fourth pipeline 213 and the delivery pump 212; and a three-way valve 210 is also provided between the third pipeline 29 and the fifth pipeline 214.

[0035] Example 2

[0036] A batch reaction barrel, comprising a NaHSO3 dosing pump 21 for conveying NaHSO3 into a batch reaction barrel 2, a float level gauge 22 and a stirring device are arranged on the batch reaction barrel 2, the float level gauge 22 comprises a hollow pipe 225, the lower end of the hollow pipe 225 is arranged inside the batch reaction barrel 2; a guide wheel 223 for lifting a first sphere 221 and a second sphere 224 is arranged at the upper end of the hollow pipe 225; the first sphere 221 is connected to the second sphere 224 through a traction rope 222; when the float level gauge 22 rises to a specified liquid level, the NaHSO3 dosing is started at the same time The embodiment of the present invention comprises a pump 21 and a stirring device; the stirring device is an aeration pipe 28 arranged on the batch reaction barrel 2. When the stirring device in Example 1 is not corrosion-resistant, the aeration pipe 28 can be selected to mix the solution evenly; the batch reaction barrel 2 is also provided with an acid exhaust pipeline 27; the batch reaction barrel 2 is sequentially connected to the fourth pipeline 213, the delivery pump 212, the fifth pipeline 214 and the third pipeline 29 to form a circulation pipeline; a Y-type filter 211 is arranged between the fourth pipeline 213 and the delivery pump 212; a three-way valve 210 is also arranged between the third pipeline 29 and the fifth pipeline 214.

[0037] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A reaction system for treating potassium permanganate waste liquid, comprising a potassium permanganate waste liquid discharge pipeline (1), characterized in that: The potassium permanganate waste liquid discharge pipeline (1) is connected to a batch reaction barrel (2); the batch reaction barrel (2) transports the potassium permanganate waste liquid that has been reacted completely to a potassium permanganate collection barrel (4) through a first pipeline (3); and the waste liquid in the potassium permanganate collection barrel (4) is transported to an acid-base wastewater static tank (6) through a second pipeline (5).

2. A batch reaction tank, characterized in that: A batch reaction barrel (2) in a reaction system for treating potassium permanganate waste liquid as claimed in claim 1 comprises a NaHSO3 dosing pump (21) for conveying NaHSO3 into the batch reaction barrel (2); a float level gauge (22) and a stirring device are arranged on the batch reaction barrel (2); when the float level gauge (22) rises to a specified liquid level, the NaHSO3 dosing pump (21) and the stirring device are started simultaneously.

3. A batch reaction barrel according to claim 2, characterized in that: The float liquid level gauge (22) comprises a hollow pipe (225), the lower end of which is arranged inside the batch reaction barrel (2); a guide wheel (223) for lifting a first sphere (221) and a second sphere (224) is arranged at the upper end of the hollow pipe (225); the first sphere (221) is connected to the second sphere (224) via a traction rope (222).

4. A batch reaction barrel according to claim 2, characterized in that: The batch reaction barrel (2) is also provided with an acid exhaust pipeline (27).

5. A batch reaction barrel according to claim 2, characterized in that: The stirring device is an aeration pipe (28) arranged on the batch reaction barrel (2).

6. A batch reaction barrel according to claim 2, characterized in that: The stirring device comprises a motor (24), the motor (24) is connected to a stirring rod (25), and a blade (26) is arranged on the stirring rod (25).

7. A batch reaction barrel according to claim 2, characterized in that: The batch reaction barrel (2) is connected in sequence to the fourth pipeline (213), the delivery pump (212), the fifth pipeline (214) and the third pipeline (29) to form a circulation pipeline.

8. A batch reaction barrel according to claim 7, characterized in that: A Y-type filter (211) is provided between the fourth pipeline (213) and the delivery pump (212).

9. A batch reaction barrel according to claim 7, characterized in that: A three-way valve (210) is also provided between the third pipeline (29) and the fifth pipeline (214).

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