PH automatic continuous adjusting treatment device

Abstract

The utility model relates to the technical field of waste liquid treatment, in particular to a PH automatic continuous adjusting treatment device which comprises a waste liquid tank, a dilute acid tank, a transfer tank, a coarse adjusting mixer and a fine adjusting mixer. The coarse adjustment mixer and the fine adjustment mixer are both communicated with the dilute acid tank, the transfer tank is communicated with the coarse adjustment mixer and the fine adjustment mixer, a plurality of turbulence plates are arranged in the coarse adjustment tank and the fine adjustment tank, and a plurality of turbulence holes are formed in the turbulence plates; according to the utility model, the circulating pipe is arranged, so that waste liquid which does not reach the discharge standard is prevented from polluting the environment in the subsequent treatment process; by arranging the turbulence plate, the desulfurization waste liquid and the dilute sulfuric acid liquid can be mixed more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid treatment, and more specifically, to a device for automatically and continuously adjusting the pH value for treatment. Background Art

[0002] In the HPF wet desulfurization and de-cyanation process, since ammonia is used as the alkali source, the final desulfurization waste liquid contains not only thiocyanate, thiosulfate and sulfate generated by side reactions, but also about 1%-2% free ammonia; if the free ammonia in the waste liquid is not neutralized and removed before treating the desulfurization waste liquid, ammonia is very likely to overflow during the treatment process, thus polluting the environment and posing a threat to the health of operators.

[0003] Therefore, it is necessary to provide a device for automatically and continuously adjusting the pH value for treatment. Summary of the Utility Model

[0004] The utility model provides a device for automatically and continuously adjusting the pH value for treatment to solve the above technical problems.

[0005] To achieve the above object, an embodiment of the utility model provides a device for automatically and continuously adjusting the pH value for treatment, including: a waste liquid tank, a dilute acid tank, a transfer tank, a rough adjustment mixer and a fine adjustment mixer. The waste liquid tank is communicated with the rough adjustment mixer. Both the rough adjustment mixer and the fine adjustment mixer are communicated with the dilute acid tank. The transfer tank is communicated with the rough adjustment mixer and the fine adjustment mixer. The rough adjustment mixer includes a rough adjustment tank. The top of the rough adjustment tank is provided with a waste liquid inlet, the bottom is provided with a first outlet, and one side is provided with a rough adjustment dilute acid inlet. The fine adjustment mixer includes a fine adjustment tank. The top of the fine adjustment tank is provided with a transfer liquid inlet, the bottom is provided with a second outlet, and one side is provided with a fine adjustment dilute acid inlet. A plurality of turbulence plates are arranged in both the rough adjustment tank and the fine adjustment tank, and a plurality of turbulence holes are opened on the turbulence plates.

[0006] Further, a first transfer pump is arranged on one side of the waste liquid tank. The first transfer pump is communicated with the waste liquid inlet of the rough adjustment mixer through a waste liquid transfer pipe, and a first regulating valve is arranged on the waste liquid transfer pipe.

[0007] Further, a second transfer pump is arranged on one side of the dilute acid tank. The second transfer pump is communicated with the rough adjustment dilute acid inlet through a rough adjustment dilute acid transfer pipe, and a second regulating valve is arranged on the rough adjustment liquid transfer pipe.

[0008] Further, the second transfer pump is communicated with the fine adjustment dilute acid inlet through a fine adjustment dilute acid transfer pipe, and a third regulating valve is arranged on the fine adjustment dilute acid transfer pipe.

[0009] Further, the first outlet is communicated with the transfer tank through a rough adjustment liquid transfer pipe, and the transfer liquid transfer pipe is communicated with the transfer liquid inlet.

[0010] Further, a third transfer pump is provided on one side of the transfer tank, and the third transfer pump is communicated with the transfer liquid delivery pipe.

[0011] Further, a circulation pipe is provided on the second outlet. The circulation pipe has two outlets. One outlet of the circulation pipe is communicated with the inlet of the transfer tank, and the other outlet is connected with a discharge pipe.

[0012] Further, a fourth regulating valve is provided at one end of the circulation pipe close to the transfer tank, and a fifth regulating valve is provided at one end of the circulation pipe close to the discharge pipe.

[0013] Further, a pH sensor I is provided in the rough adjustment tank, and a pH sensor II is provided in the fine adjustment tank.

[0014] Further, Venturi tubes are provided in both the rough adjustment tank and the fine adjustment tank, and the turbulence plate is arranged at the outlet position of the Venturi tube.

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

[0016] By providing the circulation pipe, the waste liquid can be circulated and treated until it is qualified and then discharged, avoiding environmental pollution caused by the waste liquid that does not meet the discharge standard during subsequent treatment.

[0017] By providing the turbulence plate, when mixing the desulfurization waste liquid and the dilute acid, the liquid material can be disturbed at the turbulence holes, thus causing turbulence, so that the desulfurization waste liquid can be mixed more evenly with the dilute sulfuric acid liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 It is a schematic structural diagram of the optimal embodiment of a pH automatic continuous adjustment and treatment device of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the optimal embodiment of the rough adjustment mixer of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the optimal embodiment of the fine adjustment mixer of the present utility model.

[0022] Among them, 1 is a waste liquid tank; 2 is a dilute acid tank; 3 is a transfer tank; 4 is a rough adjustment mixer; 41 is a rough adjustment tank; 42 is a waste liquid inlet; 43 is a rough adjustment dilute acid inlet; 44 is a first outlet; 5 is a fine adjustment mixer; 51 is a fine adjustment tank; 52 is a transfer liquid inlet; 53 is a fine adjustment dilute acid inlet; 54 is a second outlet; 6 is a first transfer pump; 7 is a waste liquid transfer pipe; 8 is a first regulating valve; 9 is a rough adjustment liquid transfer pipe; 10 is a second transfer pump; 11 is a rough adjustment dilute acid transfer pipe; 12 is a second regulating valve; 13 is a fine adjustment dilute acid transfer pipe; 14 is a third regulating valve; 15 is a third transfer pump; 16 is a transfer liquid transfer pipe; 17 is a circulation pipe; 18 is a fourth regulating valve; 19 is a fifth regulating valve; 20 is a discharge pipe; 21 is a turbulence plate; 22 is a turbulence hole. Detailed implementation mode

[0023] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0024] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the optimal embodiment of a pH automatic continuous adjustment treatment device of the present utility model. As Figure 1 shown, at least one embodiment provides a pH automatic continuous adjustment treatment device, including: a waste liquid tank 1, a dilute acid tank 2, a transfer tank 3, a rough adjustment mixer 4 and a fine adjustment mixer 5. The waste liquid tank 1 is used for transferring and storing the coking desulfurization waste liquid to be treated, and the dilute acid tank 2 is used for storing dilute sulfuric acid; the rough adjustment mixer 4 is used for preliminarily adjusting the pH of the desulfurization waste liquid; the transfer tank 3 is used for transferring the desulfurization waste liquid after rough adjustment; the fine adjustment mixer 5 is used for precisely adjusting the pH of the desulfurization waste liquid; the waste liquid tank 1 is communicated with the rough adjustment mixer 4, and both the rough adjustment mixer 4 and the fine adjustment mixer 5 are communicated with the dilute acid tank 2. The transfer tank 3 is communicated with the rough adjustment mixer 4 and the fine adjustment mixer 5. A first transfer pump 6 is arranged on one side of the waste liquid tank 1. The first transfer pump 6 is communicated with the waste liquid inlet 42 of the rough adjustment mixer 4 through a waste liquid transfer pipe 7, and a first regulating valve 8 is arranged on the waste liquid transfer pipe 7. A second transfer pump 10 is arranged on one side of the dilute acid tank 2. The second transfer pump 10 is communicated with the rough adjustment dilute acid inlet 43 through a rough adjustment dilute acid transfer pipe 11, and a second regulating valve 12 is arranged on the rough adjustment liquid transfer pipe 9. The second transfer pump 10 is communicated with the fine adjustment dilute acid inlet 53 through a fine adjustment dilute acid transfer pipe 13, and a third regulating valve 14 is arranged on the fine adjustment dilute acid transfer pipe 13.

[0025] The first outlet 44 is connected to the transfer tank 3 through the coarse adjustment liquid delivery pipe 9, and the transfer liquid delivery pipe 16 is connected to the transfer liquid inlet 52. A third delivery pump 15 is provided on one side of the transfer tank 3, and the third delivery pump 15 is connected to the transfer liquid delivery pipe 16. A circulation pipe 17 is provided on the second outlet 54. The circulation pipe 17 is used to send the waste liquid that does not meet the requirements after being adjusted by the fine adjustment mixer 5 into the transfer tank 3, and can also discharge the waste liquid that meets the requirements. Specifically, the circulation pipe 17 has two outlets. One outlet of the circulation pipe 17 is connected to the inlet of the transfer tank 3, and the other outlet is connected to a discharge pipe 20. A fourth regulating valve 18 is provided at one end of the circulation pipe 17 close to the transfer tank 3, and a fifth regulating valve 19 is provided at one end of the circulation pipe 17 close to the discharge pipe 20.

[0026] Please continue to refer to Figure 1 and in combination with Figures 2 to 3 , Figure 2 which is a schematic structural diagram of the optimal embodiment of the coarse adjustment mixer of the present utility model; Figure 3 which is a schematic structural diagram of the optimal embodiment of the fine adjustment mixer of the present utility model. As Figures 1 to 3 shown, the coarse adjustment mixer 4 includes a coarse adjustment tank 41. The top of the coarse adjustment tank 41 is provided with a waste liquid inlet 42, the bottom is provided with a first outlet 44, and one side is provided with a coarse adjustment dilute acid inlet 43. The fine adjustment mixer 5 includes a fine adjustment tank 51. The top of the fine adjustment tank 51 is provided with a transfer liquid inlet 52, the bottom is provided with a second outlet 54, and one side is provided with a fine adjustment dilute acid inlet 53. A plurality of turbulence plates 21 are provided in both the coarse adjustment tank 41 and the fine adjustment tank 51, and a plurality of turbulence holes 22 are formed in the turbulence plates 21. A first pH sensor (not shown in the figure) is provided in the coarse adjustment tank 41, and a second pH sensor (not shown in the figure) is provided in the fine adjustment tank 51. In order to enable the desulfurization waste liquid in the coarse adjustment mixer 4 and the fine adjustment mixer 5 to be fully mixed with the acid liquid, Venturi tubes are provided in both the coarse adjustment tank 41 and the fine adjustment tank 51. The turbulence plates 21 are arranged at the outlet positions of the Venturi tubes, which can make the liquid material be disturbed at the turbulence holes 22 when mixing the desulfurization waste liquid and the dilute acid, so as to generate turbulence, and make the desulfurization waste liquid mix more evenly with the dilute sulfuric acid liquid.

[0027] In summary, the desulfurization waste liquid and the dilute sulfuric acid are mixed quickly and fully, the mixing efficiency of the desulfurization waste liquid and the dilute sulfuric acid is improved, the control mechanism cooperates with the circulation component to control the pH value of the desulfurization wastewater until it meets the standard that all the free ammonia in the desulfurization wastewater is converted into ammonium sulfate, and then continuously discharge backward to meet the requirements of subsequent treatment, improving the treatment efficiency and treatment quality of the desulfurization liquid, and avoiding environmental pollution caused by the waste liquid that does not meet the discharge standard during the subsequent treatment process.

[0028] Based on the above-mentioned ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic continuous pH adjustment processing device, characterized in that Including: A waste liquid tank (1), a dilute acid tank (2), a transfer tank (3), a coarse adjustment mixer (4) and a fine adjustment mixer (5). The waste liquid tank (1) is communicated with the coarse adjustment mixer (4). Both the coarse adjustment mixer (4) and the fine adjustment mixer (5) are communicated with the dilute acid tank (2). The transfer tank (3) is communicated with the coarse adjustment mixer (4) and the fine adjustment mixer (5). The coarse adjustment mixer (4) includes a coarse adjustment tank (41). A waste liquid inlet (42) is arranged at the top of the coarse adjustment tank (41), a first outlet (44) is arranged at the bottom, and a coarse adjustment dilute acid inlet (43) is arranged at one side. The fine adjustment mixer (5) includes a fine adjustment tank (51). A transfer liquid inlet (52) is arranged at the top of the fine adjustment tank (51), a second outlet (54) is arranged at the bottom, and a fine adjustment dilute acid inlet (53) is arranged at one side. A plurality of turbulence plates (21) are arranged in both the coarse adjustment tank (41) and the fine adjustment tank (51), and a plurality of turbulence holes (22) are formed in the turbulence plates (21).

2. The PH automatic continuous adjustment processing device according to claim 1, characterized in that: A first delivery pump (6) is arranged at one side of the waste liquid tank (1). The first delivery pump (6) is communicated with the waste liquid inlet (42) of the coarse adjustment mixer (4) through a waste liquid delivery pipe (7), and a first regulating valve (8) is arranged on the waste liquid delivery pipe (7).

3. The PH automatic continuous adjustment processing device according to claim 2, characterized in that: A second delivery pump (10) is arranged at one side of the dilute acid tank (2). The second delivery pump (10) is communicated with the coarse adjustment dilute acid inlet (43) through a coarse adjustment dilute acid delivery pipe (11), and a second regulating valve (12) is arranged on the coarse adjustment dilute acid delivery pipe (11).

4. The automatic continuous pH adjustment processing device according to claim 3, characterized in that: The second delivery pump (10) is communicated with the fine adjustment dilute acid inlet (53) through a fine adjustment dilute acid delivery pipe (13), and a third regulating valve (14) is arranged on the fine adjustment dilute acid delivery pipe (13).

5. The PH automatic continuous adjustment processing device according to claim 4, characterized in that: The first outlet (44) is communicated with the transfer tank (3) through a coarse adjustment liquid delivery pipe (9), and a transfer liquid delivery pipe (16) is communicated with the transfer liquid inlet (52).

6. The PH automatic continuous adjustment processing device according to claim 5, characterized in that: A third delivery pump (15) is arranged at one side of the transfer tank (3). The third delivery pump (15) is communicated with the transfer liquid delivery pipe (16).

7. The automatic continuous pH adjustment processing device according to claim 6, characterized in that: A circulation pipe (17) is arranged on the second outlet (54). The circulation pipe (17) has two outlets. One outlet of the circulation pipe (17) is communicated with the inlet of the transfer tank (3), and the other outlet is connected with a discharge pipe (20).

8. The automatic continuous pH adjustment processing device according to claim 7, characterized in that: A fourth regulating valve (18) is arranged at one end of the circulation pipe (17) close to the transfer tank (3), and a fifth regulating valve (19) is arranged at one end of the circulation pipe (17) close to the discharge pipe (20).

9. The PH automatic continuous adjustment processing device according to claim 8, characterized in that: A first pH sensor is arranged in the coarse adjustment tank (41), and a second pH sensor is arranged in the fine adjustment tank (51).

10. The PH automatic continuous adjustment processing device according to claim 9, characterized in that: Venturi tubes are arranged in both the coarse adjustment tank (41) and the fine adjustment tank (51), and the turbulence plates (21) are arranged at the outlet positions of the Venturi tubes.

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