Butanol waste liquid recovery device

Abstract

The utility model discloses a butanol waste liquid recovery device, including discharge groove, first storage tank, second storage tank and circulation pipeline, the waste liquid containing butanol is used to collect in discharge groove, and discharge groove has first liquid inlet and first liquid outlet, and first storage tank has second liquid inlet and second liquid outlet, and second storage tank has third liquid inlet and third liquid outlet, and first liquid outlet communicates with second liquid inlet, and second liquid outlet communicates with third liquid inlet, and one end of circulation pipeline communicates with third liquid inlet, and the other end of circulation pipeline communicates with third liquid outlet, and still have liquid outlet on circulation pipeline, and be provided with first valve at liquid outlet, and circulation pipeline is used to circulate and mix the liquid in second storage tank to avoid butanol and moisture layering, so can contain butanol's waste liquid in discharge groove and store in first storage tank temporarily, can be discharged to second storage tank in the later period according to need to carry out mix -match with butanol solution in second storage tank, and open first valve can butanol solution and discharge and load into tank car.

Description

Technical Field

[0001] This utility model belongs to the field of butanol recovery technology, and in particular relates to a butanol waste liquid recovery device. Background Technology

[0002] During BDO (butanol) production, the materials collected in the discharge tank mainly include flash vapor, purge gas, and bottom separated liquid from the circulating gas separator after cooling and discharge. The waste liquid contained in the discharge tank contains butanol, with a butanol content of about 60 vol%. The waste liquid in the discharge tank is difficult to treat, but the butanol content in the waste liquid meets the recycling standards. Currently, the waste liquid is usually sent to the paper power generation workshop or power plant for use as fuel, which results in poor economic efficiency for its reuse. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a butanol waste liquid recovery device with a simple structure that can directly reuse and sell the waste liquid in the discharge tank.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A butanol waste liquid recovery device includes a discharge tank, a first storage tank, a second storage tank, and a circulation pipeline. The discharge tank is used to collect waste liquid containing butanol. The discharge tank has a first inlet and a first outlet. The first storage tank has a second inlet and a second outlet. The second storage tank has a third inlet and a third outlet. The first outlet is connected to the second inlet, and the second outlet is connected to the third inlet. One end of the circulation pipeline is connected to the third inlet, and the other end of the circulation pipeline is connected to the third outlet. The circulation pipeline also has a drain outlet, and a first valve is installed at the drain outlet. The circulation pipeline is used to circulate and mix the liquid in the second storage tank to prevent butanol and water from separating.

[0005] The beneficial effects of the above technical solution are as follows: the waste liquid containing butanol in the discharge tank can be temporarily stored in the first storage tank, and can be discharged to the second storage tank as needed to mix with the butanol solution in the second storage tank to obtain a butanol solution with the required concentration. The circulation pipeline can externally circulate the butanol solution in the second storage tank to avoid the separation of butanol and water. Opening the first valve can discharge the butanol solution and load it into the tank truck.

[0006] The circulation pipeline in the above technical solution includes a first pipeline, a second pipeline, and two delivery pumps. One end of the first pipeline is connected to the third outlet. The inlets of the two delivery pumps are connected to the other end of the first pipeline. The outlets of the two delivery pumps are connected to one end of the second pipeline. The other end of the second pipeline is connected to the third inlet. A tee is connected to the second pipeline, and the remaining ports of the tee constitute the drain port.

[0007] The beneficial effect of the above technical solution is that the liquid in the second storage tank can be pumped out by two transfer pumps and then returned to the second storage tank, thereby avoiding the liquid in the second storage tank from separating due to standing, which would affect the subsequent canning and sale.

[0008] The above technical solution provides a second valve at the inlet of the pump and a check valve and a third valve at the outlet of the pump.

[0009] The beneficial effect of the above technical solution is that, with both delivery pumps operating simultaneously, either delivery pump can be selected to operate.

[0010] The above technical solution describes a first external discharge pipe installed at the inlet of the pump, and an eighth valve installed on the first external discharge pipe.

[0011] The beneficial effect of the above technical solution is that it allows the eighth valve to be opened in an emergency to drain the liquid from the inlet of the corresponding delivery pump.

[0012] The above technical solution provides a second external discharge pipe at the outlet of the pump, and a ninth valve is provided on the second external discharge pipe.

[0013] The beneficial effect of the above technical solution is that it allows the ninth valve to be opened in an emergency to drain the liquid from the outlet of the corresponding delivery pump.

[0014] In the above technical solution, a fourth valve is provided on the second pipeline at the connection between the tee and the third liquid inlet.

[0015] The beneficial effect of the above technical solution is that the fourth valve can be closed when the first valve is opened.

[0016] In the above technical solution, a fifth valve is provided at the connection between the second liquid outlet and the third liquid inlet.

[0017] The beneficial effect of the above technical solution is that the liquid in the first storage tank can be discharged into the second storage tank by opening the fifth valve, and the discharge of liquid in the first storage tank into the second storage tank can be stopped by closing the fifth valve.

[0018] The above technical solution also includes a supply pump, the inlet of which is connected to the second outlet, the outlet of which is connected to the third inlet, and the fifth valve is located at the connection between the two.

[0019] The beneficial effect of the above technical solution is that the liquid in the first storage tank is pumped into the second storage tank by a supply pump.

[0020] The outlet of the pump described in the above technical solution is also connected to the power generation workshop, and a sixth valve is installed at the connection between the two.

[0021] The beneficial effect of the above technical solution is that the liquid can be supplied to the power generation workshop for use as fuel as needed.

[0022] The outlet of the pump described in the above technical solution is also connected to the power workshop, and a seventh valve is installed at the connection between the two.

[0023] The beneficial effect of the above technical solution is that the liquid can also be supplied to the power plant for use as fuel as needed. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of the butanol waste liquid recovery device described in this utility model embodiment;

[0025] Figure 2 This is a second schematic diagram of the butanol waste liquid recovery device described in this embodiment of the present invention;

[0026] Figure 3 This is the third schematic diagram of the butanol waste liquid recovery device described in this embodiment of the present invention.

[0027] In the diagram: 1. Discharge tank; 11. First inlet; 12. First outlet; 2. First storage tank; 21. Second inlet; 22. Second outlet; 3. Second storage tank; 31. Third inlet; 32. Third outlet; 4. Circulation pipeline; 41. Drainage outlet; 42. First pipeline; 43. Second pipeline; 44. Transfer pump; 441. Second valve; 442. Check valve; 443. Third valve; 444. First external discharge pipe; 445. Eighth valve; 446. Second external discharge pipe; 447. Ninth valve; 45. T-junction; 46. Fourth valve; 47. Fifth valve; 48. First valve; 5. Supply pump; 6. Power generation workshop; 61. Sixth valve; 7. Power workshop; 71. Seventh valve. Detailed Implementation

[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0029] like Figure 1 As shown, this embodiment provides a butanol waste liquid recovery device, including a discharge tank 1, a first storage tank 2, a second storage tank 3, and a circulation pipeline 4. The discharge tank 1 is used to collect waste liquid containing butanol. The discharge tank 1 has a first inlet 11 and a first outlet 12. The first storage tank 2 has a second inlet 21 and a second outlet 22. The second storage tank 3 has a third inlet 31 and a third outlet 32. The first outlet 12 is connected to the second inlet 21, and the second outlet 22 is connected to the third inlet 31. One end of the circulation pipeline 4 is connected to the third inlet 31. The other end is connected to the third outlet 32. The circulation pipeline 4 also has a drain port 41. A first valve 48 is provided at the drain port 41. The circulation pipeline 4 is used to circulate and mix the liquid in the second storage tank 3 to avoid the separation of butanol and water. In this way, the waste liquid containing butanol in the discharge tank can be temporarily stored in the first storage tank. Later, it can be discharged into the second storage tank as needed to mix with the butanol solution in the second storage tank to obtain a butanol solution with the required concentration. The circulation pipeline can circulate the butanol solution in the second storage tank to avoid the separation of butanol and water. Opening the first valve 48 can discharge the butanol solution and load it into the tank truck.

[0030] The circulation pipeline 4 described in the above technical solution includes a first pipeline 42, a second pipeline 43, and two transfer pumps 44. One end of the first pipeline 42 is connected to the third liquid outlet. The inlets of the two transfer pumps 44 are connected to the other end of the first pipeline 42, and the outlets of the two transfer pumps 44 are connected to one end of the second pipeline 43. The other end of the second pipeline 43 is connected to the third liquid inlet 31. A tee 45 is connected to the second pipeline 43, and the remaining interface of the tee 45 constitutes the drain outlet 41. In this way, the liquid in the second storage tank can be pumped out by the two transfer pumps and then returned to the second storage tank, thereby avoiding the liquid in the second storage tank from stratifying due to standing, which would affect the subsequent canning and sale.

[0031] In the above technical solution, a second valve 441 is provided at the inlet of the delivery pump 44, and a one-way valve 442 and a third valve 443 are provided at the outlet of the delivery pump 44. This allows both delivery pumps to operate simultaneously, or either one can be selected to operate. In this embodiment, the one-way valve is used to prevent liquid from flowing back into the corresponding delivery pump, and the one-way valve is located between the corresponding delivery pump and the third valve.

[0032] like Figure 2 As shown, the inlet of the above-described technical solution of the delivery pump 44 is provided with a first external discharge pipe 444, and an eighth valve 445 is provided on the first external discharge pipe 444, so that the eighth valve can be opened in an emergency to discharge the liquid at the inlet of the corresponding delivery pump; the outlet of the delivery pump 44 is provided with a second external discharge pipe 446, and a ninth valve 447 is provided on the second external discharge pipe 446, so that the ninth valve can be opened in an emergency to discharge the liquid at the outlet of the corresponding delivery pump.

[0033] The connection between the first external drain pipe 444 and the corresponding delivery pump is located between the corresponding second valve 441 and the corresponding delivery pump, and the connection between the second external drain pipe and the corresponding delivery pump is located between the corresponding check valve and the third valve.

[0034] In the above technical solution, a fourth valve 46 is provided on the second pipeline 43 at the connection between the tee 45 and the third liquid inlet 31, so that when the first valve 48 is opened, the fourth valve is closed.

[0035] In the above technical solution, a fifth valve 47 is provided at the connection between the second liquid outlet 22 and the third liquid inlet 31. Thus, the liquid in the first storage tank can be discharged into the second storage tank when the fifth valve is opened, and the liquid in the first storage tank can be stopped when the fifth valve is closed.

[0036] The above technical solution also includes a supply pump 5, the inlet of which is connected to the second liquid outlet 22, and the outlet of which is connected to the third liquid inlet 31. The fifth valve 47 is located at the connection between the two, so that the liquid in the first storage tank is pumped to the second storage tank by the supply pump.

[0037] like Figure 3 As shown, in the above technical solution, the outlet of the supply pump 5 is also connected to the power generation workshop 6, and a sixth valve 61 is provided at the connection between the two, so that liquid can be supplied to the power generation workshop for use as fuel as needed; the outlet of the supply pump 5 is also connected to the power workshop 7, and a seventh valve 71 is provided at the connection between the two, so that liquid can also be supplied to the power workshop for use as fuel as needed.

[0038] In this embodiment, the connection between the power generation workshop and the power supply workshop and the supply pump is located between the supply pump and the fifth valve 47.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A butanol waste liquid recovery device, characterized in that, The system includes a discharge tank (1), a first storage tank (2), a second storage tank (3), and a circulation pipeline (4). The discharge tank (1) is used to collect waste liquid containing butanol. The discharge tank (1) has a first inlet (11) and a first outlet (12). The first storage tank (2) has a second inlet (21) and a second outlet (22). The second storage tank (3) has a third inlet (31) and a third outlet (32). The first outlet (12) and the second inlet (21) are connected. 1) Connected, the second liquid outlet (22) is connected to the third liquid inlet (31), one end of the circulation pipeline (4) is connected to the third liquid inlet (31), and the other end of the circulation pipeline (4) is connected to the third liquid outlet (32). The circulation pipeline (4) also has a drain outlet (41), and a first valve (48) is provided at the drain outlet (41). The circulation pipeline (4) is used to circulate and mix the liquid in the second storage tank (3) to avoid the separation of butanol and water.

2. The butanol waste liquid recovery device according to claim 1, characterized in that, The circulation pipeline (4) includes a first pipeline (42), a second pipeline (43) and two delivery pumps (44). One end of the first pipeline (42) is connected to the third outlet (32). The inlets of the two delivery pumps (44) are connected to the other end of the first pipeline (42). The outlets of the two delivery pumps (44) are connected to one end of the second pipeline (43). The other end of the second pipeline (43) is connected to the third inlet (31). A tee (45) is connected to the second pipeline (43). The remaining interface of the tee (45) constitutes the drain port (41).

3. The butanol waste liquid recovery device according to claim 2, characterized in that, The inlet of the delivery pump (44) is provided with a second valve (441), and the outlet of the delivery pump (44) is provided with a check valve (442) and a third valve (443).

4. The butanol waste liquid recovery device according to claim 3, characterized in that, The inlet of the delivery pump (44) is provided with a first external discharge pipe (444), and an eighth valve (445) is provided on the first external discharge pipe (444).

5. The butanol waste liquid recovery device according to claim 3, characterized in that, The outlet of the delivery pump (44) is provided with a second external discharge pipe (446), and a ninth valve (447) is provided on the second external discharge pipe (446).

6. The butanol waste liquid recovery device according to claim 2, characterized in that, A fourth valve (46) is provided on the second pipeline (43) at the connection between the tee (45) and the third inlet (31).

7. The butanol waste liquid recovery device according to claim 3, characterized in that, A fifth valve (47) is provided at the connection between the second liquid outlet (22) and the third liquid inlet (31).

8. The butanol waste liquid recovery device according to claim 7, characterized in that, It also includes a supply pump (5), the inlet of which is connected to the second outlet (22), the outlet of which is connected to the third inlet (31), and the fifth valve (47) is located at the connection between the two.

9. The butanol waste liquid recovery device according to claim 8, characterized in that, The outlet of the supply pump (5) is also connected to the power generation workshop (6), and a sixth valve (61) is provided at the connection between the two.

10. The butanol waste liquid recovery device according to claim 8, characterized in that, The outlet of the supply pump (5) is also connected to the power workshop (7), and a seventh valve (71) is provided at the connection between the two.

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