Integrated mine water deoiling equipment

Abstract

The invention discloses integrated mine water oil removal equipment (NTMOWT). The integrated mine water oil removal equipment mainly comprises an integrated equipment box body, an oil-containing sewage raw material liquid storage tank, an oil-containing concentrated liquid storage tank, a residual liquid storage tank, a penetrating fluid storage tank, a rough filtration ceramic membrane assembly and a fine filtration ceramic membrane assembly. The treatment process of the integrated mine water oil removal equipment comprises the steps of static settlement and membrane separation. The oily sewage of the mine water is separated by the rough filtration ceramic membrane and the fine filtration ceramic membrane to obtain an oily concentrated solution and a penetrating fluid finished product, the oily concentrated solution is recycled, and the penetrating fluid finished product enters a conventional domestic sewage treatment plant to be treated. The integrated mine water oil removal equipment has the function of recycling waste oil, greatly reduces pollutants in oil-containing sewage, reduces the sewage treatment cost, and has popularization and application values.

Description

Technical Field

[0001] The invention relates to integrated wastewater treatment equipment, in particular to an integrated mine water oil removal equipment NTMOWT. Background Art

[0002] Mine water refers to water stored underground that usually contains oily substances, such as floating oil and emulsified oil. This water has the characteristics of high oil content, high COD, and is difficult to biodegrade and degrade, which has become a difficulty in the field of mine water treatment. CN201711150879.8 reported a mine water oil removal device, which solved the oil removal problem in mine water through an oil blocking device and an oil suction device; CN201510511179.1 reported a coal mine water underground purification treatment equipment, which adopted a mud removal-oil removal device.

[0003] Therefore, seeking to develop integrated mine water oil removal equipment NTMOWT to meet safety and environmental protection requirements and achieve stable and long-term operation has become a research hotspot in the field of environmental protection. Summary of the invention

[0004] The object of the present invention is to provide an integrated mine water oil removal equipment NTMOWT (Gongda membrane mine water oil removal equipment).

[0005] The technical solution of the present invention is:

[0006] The integrated mine water oil removal equipment (NTMOWT) mainly includes an integrated equipment box, an oily wastewater raw liquid storage tank, an oily concentrated liquid storage tank, a residual liquid storage tank, a permeate storage tank, a coarse filtration ceramic membrane assembly, and a fine filtration ceramic membrane assembly. The oily wastewater in the mine water enters the oily wastewater raw liquid storage tank through the oily wastewater raw liquid delivery pump, and is separated through the coarse filtration ceramic membrane assembly. The permeate at the outlet of the coarse filtration ceramic membrane assembly enters the fine filtration ceramic membrane assembly for further separation. The permeate of the fine filtration ceramic membrane assembly enters the permeate finished product storage tank, and is output to the system through the permeate finished product delivery pump for subsequent treatment; the concentrate of the coarse filtration ceramic membrane assembly and the fine filtration ceramic membrane assembly enters the oily concentrated liquid storage tank, and after static stratification, the lower water phase enters the oily wastewater raw liquid storage tank, and the upper oil phase is output to the system for recycling; the permeate storage tank is connected to a backwash pump to transport the permeate to the coarse filtration ceramic membrane assembly and the fine filtration ceramic membrane assembly for backwashing, and the backwash liquid enters the residual liquid tank and the delivery system for waste treatment.

[0007] The oily concentrated liquid storage tank is connected to the oily wastewater raw liquid storage tank through a valve, and the stratified water phase is discharged into the oily wastewater raw liquid storage tank;

[0008] Among them, the coarse filter ceramic membrane assembly mainly includes a coarse filter ceramic membrane tube and a seal, and the pore size of the coarse filter ceramic membrane tube is 100-200nm;

[0009] Among them, the head of the feed pump of the coarse filtration ceramic membrane module is controlled at 10 - 15 m;

[0010] Among them, the fine filtration ceramic membrane module mainly includes fine filtration ceramic membrane tubes and seals, and the pore diameter of the fine filtration ceramic membrane tubes is 10 - 30 nm;

[0011] Among them, the head of the feed pump of the fine filtration ceramic membrane module is controlled at 20 - 30 m.

[0012] In this solution, after the mine water containing oil sewage is pressurized by the conveying pump of the coarse filtration ceramic membrane module, it enters the coarse filtration ceramic membrane module. A pressure is formed inside the coarse filtration membrane module, which serves as the driving force for membrane separation. The permeate passes through the pores of the coarse filtration ceramic membrane to form the permeate of the coarse filtration ceramic membrane and enters the permeate product tank. The intercepted concentrated liquid remains in the pore channels of the ceramic membrane to form the concentrated liquid of the coarse filtration ceramic membrane and enters the oil-containing concentrated liquid storage tank for phase separation to form recovered oil and wastewater. The wastewater is discharged into the raw material tank of the oil-containing sewage through valve control; the permeate of the coarse filtration ceramic membrane undergoes high-pressure membrane separation. The permeate passes through the membrane pores to form the permeate product, and the concentrated liquid of the fine filtration ceramic membrane remaining in the membrane pores enters the oil-containing concentrated liquid storage tank and undergoes phase separation to form recovered oil and wastewater.

[0013] Compared with the prior art, the significant advantages of the present invention are as follows: The integrated mine water oil removal equipment proposed by the present invention separates the oil and wastewater in the oil-containing sewage through the core technologies of coarse and fine two-stage ceramic membrane separation. The obtained oil is recycled. The permeate product obtained contains trace amounts of oil, greatly reducing the COD, NH 3 -N and other indicators in the original wastewater. It enters a conventional domestic sewage treatment plant for treatment, reducing the treatment cost of the mine water containing oil sewage. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the integrated mine water oil removal equipment NTMOWT.

[0015] 1 - Oil-containing concentrated liquid storage tank, 2 - Coarse filtration ceramic membrane concentrated liquid discharge valve, 3 - Coarse filtration ceramic membrane permeate backwash valve, 4 - Coarse filtration ceramic membrane permeate discharge valve, 5 - Fine filtration ceramic membrane concentrated liquid discharge valve, 6 - Fine filtration ceramic membrane backwash valve, 7 - Fine filtration ceramic membrane permeate discharge valve, 8 - Permeate backwash pump, 9 - Permeate backwash feed valve, 10 - Permeate finished product storage tank, 11 - Permeate backwash feed pipe, 12 - Permeate finished product discharge valve, 13 - Permeate discharge pipe, 14 - Permeate finished product feed pipe, 15 - Permeate finished product transfer pump, 16 - Fine filtration ceramic membrane module sewage discharge bottom valve, 17 - Fine filtration ceramic membrane module feed pump, 18 - Fine filtration ceramic membrane module, 19 - Coarse filtration ceramic membrane module sewage discharge bottom valve, 20 - Coarse filtration ceramic membrane module feed pump, 21 - Coarse filtration ceramic membrane module feed valve, 22 - Coarse filtration ceramic membrane module, 23 - Oil-containing sewage connecting coarse filtration ceramic membrane feed pipe, 24 - Oil-containing sewage raw liquid storage tank feed pipe, 25 - Oil-containing sewage raw liquid storage tank, 26 - Oil-containing concentrated liquid connecting oil-containing sewage raw liquid storage tank feed pipe, 27 - Residual liquid storage tank feed pipe, 28 - Residual liquid storage tank discharge pipe, 29 - Residual liquid storage tank discharge valve, 30 - Residual liquid storage tank, 31 - Oil-containing sewage feed pump, 32 - Oil-containing sewage feed valve, 33 - Oil-containing sewage feed pipe, 34 - Oil-containing concentrated liquid drainage bottom valve, 35 - Oil-containing concentrated liquid storage tank feed pipe, 36 - Oil-containing concentrated liquid storage tank drainage and discharge pipe, 37 - Oil-containing concentrated liquid external discharge output pipe, 38 - Oil-containing concentrated liquid output valve, 39 - Integrated equipment box body. Detailed implementation manners

[0016] The technical solution of the present invention will be further described below in conjunction with specific embodiments, and these embodiments should not be construed as limiting the technical solution.

[0017] Embodiment 1

[0018] The integrated mine water oil removal equipment NTMOWT mainly includes: integrated equipment box body 39, oil-containing sewage raw liquid storage tank 25, oil-containing concentrated liquid storage tank 1, permeate finished product storage tank 10, residual liquid storage tank 30, coarse filtration ceramic membrane module 22 and fine filtration ceramic membrane module 18.

[0019] When the integrated mine water oil removal equipment NTMOWT is in use, first, open the oily sewage feed valve 32 and start the oily sewage feed pump 31. The mine water oily sewage enters the oily sewage raw liquid storage tank 25 through the oily sewage feed pipe 33 and the oily sewage raw liquid storage tank feed pipe 24. Secondly, it enters the coarse filtration ceramic membrane module 22 through the oily sewage connecting coarse filtration ceramic membrane feed pipe 23, the coarse filtration ceramic membrane module feed valve 21, and the coarse filtration ceramic membrane module feed pump 20. After the oily sewage is separated by the coarse filtration ceramic membrane module 22, the permeate enters the fine filtration ceramic membrane module feed pump 17 through the coarse filtration ceramic membrane permeate discharge valve 4 and enters the fine filtration ceramic membrane module 18. After being separated by the fine filtration ceramic membrane, the permeate passes through the fine filtration ceramic membrane permeate discharge valve 7, enters the permeate finished product transfer pump 15, and enters the permeate finished product storage tank 10 through the permeate discharge pipe 14. Then, the concentrate of the coarse filtration ceramic membrane module passes through the coarse filtration ceramic membrane concentrate discharge valve 2, and the concentrate of the fine filtration ceramic membrane module passes through the fine filtration ceramic membrane concentrate discharge valve 5 and enters the oily concentrate storage tank 1 through the oily concentrate storage tank feed pipe 35. Finally, the oily concentrate is discharged and recycled through the oily concentrate external discharge output pipe 37 and the oily concentrate output valve 38; the permeate finished product passes through the permeate discharge pipe 13 and the permeate finished product discharge valve 12, is output from the integrated mine water oil removal equipment, and enters the subsequent treatment. Among them, the bottom of the oily concentrate storage tank 1 enters the oily wastewater raw liquid storage tank 25 through the oily concentrate storage tank drainage discharge pipe 36, the oily concentrate drainage bottom valve 34, and the oily concentrate connecting raw liquid storage tank feed pipe 26; the permeate enters the fine filtration ceramic membrane module 18 and the coarse filtration ceramic membrane module 22 respectively for backwashing through the permeate backwashing feed pipe 11, the permeate backwashing feed valve 9, the permeate backwashing pump 8, the fine filtration ceramic membrane backwashing valve 6, and the coarse filtration ceramic membrane backwashing valve 3. The backwashing waste liquid enters the residue storage tank 30 through the coarse filtration ceramic membrane module blowdown bottom valve 19, the fine filtration ceramic membrane module blowdown bottom valve 16, and the residue storage tank feed pipe 27 respectively, and is output from the system through the residue storage tank discharge pipe 28 and the residue storage tank discharge valve 29 for waste treatment.

[0020] Implementation effect:

[0021] Serial number Sampling port COD / mg / L Removal rate / % 1 Oily wastewater raw liquid storage tank 25 11000 - 2 Coarse filtration ceramic membrane module 22 7200 34.5％ 3 Permeate finished product storage tank 10 1200 89.1％ 4 Residual liquid storage tank 30 35600 - 5 Oily concentrated liquid storage tank 1 157000 -

[0022] It can be seen from the test results that after being treated by the integrated mine water oil removal equipment NTMOWT, the COD degradation effect reaches 89%, significantly reducing the oil content in the raw oily wastewater. Through the ceramic membrane separation process, both the recovery of waste oil in the mine water oily sewage and the treatment cost of the mine water oily sewage are reduced.

Claims

1. Integrated Mine Water Oil Removal Equipment NTMOWT, characterized in that: This equipment mainly includes: an oily sewage raw liquid storage tank (25), an oily concentrated liquid storage tank (1), a permeate finished product storage tank (10), a residual liquid storage tank (30), a coarse filtration ceramic membrane module (22), and a fine filtration ceramic membrane module (18) installed in an integrated equipment box body (39); the oily sewage raw liquid storage tank (25) includes an oily sewage raw liquid storage tank feed pipe (24), an oily sewage connecting coarse filtration ceramic membrane module feed pipe (23), and an oily concentrated liquid connecting oily sewage raw liquid storage tank feed pipe (26). Among them, the oily sewage raw liquid storage tank feed pipe (24) is connected to an oily sewage feed pump (31), an oily sewage feed valve (32), and an oily sewage feed pipe (33). The oily sewage connecting coarse filtration ceramic membrane module feed pipe (23) is connected to a ceramic membrane module feed valve (21) and a coarse filtration ceramic membrane module feed pump (20). The oily concentrated liquid connecting oily sewage raw liquid storage tank feed pipe (26) is connected to an oily concentrated liquid drain bottom valve (34) and an oily concentrated liquid storage tank drain discharge pipe (36); the oily concentrated liquid storage tank (1) includes an oily concentrated liquid storage tank feed pipe (35), an oily concentrated liquid storage tank drain discharge pipe (36), and an oily concentrated liquid external discharge output pipe (37). Among them, the oily concentrated liquid storage tank drain discharge pipe (36) is connected to the oily concentrated liquid drain bottom valve (34) and the oily concentrated liquid connecting oily sewage raw liquid storage tank feed pipe (26). The oily concentrated liquid external discharge output pipe (37) is connected to an oily concentrated liquid output valve (38) to output the integrated oily sewage treatment equipment; the permeate finished product storage tank (10) includes a permeate backwashing feed pipe (11), a permeate discharge pipe (13), and a permeate finished product feed pipe (14). Among them, the permeate backwashing feed pipe (11) is connected to a permeate backwashing feed pump (8) and a permeate backwashing feed valve (9). The permeate discharge pipe (13) is connected to a permeate finished product discharge valve (12). The permeate finished product feed pipe (14) is connected to a permeate finished product transfer pump (15) and a fine filtration ceramic membrane permeate discharge valve (7); the residual liquid storage tank (30) includes a residual liquid storage tank feed pipe (27) and a residual liquid storage tank discharge pipe (28). The residual liquid storage tank feed pipe (27) is connected to a coarse filtration ceramic membrane module sewage discharge bottom valve (19) and a fine filtration ceramic membrane sewage discharge bottom valve (16); the coarse filtration ceramic membrane module (22) includes a coarse filtration ceramic membrane concentrated liquid discharge valve (2), a coarse filtration ceramic membrane permeate backwashing valve (3), a coarse filtration ceramic membrane permeate discharge valve (4), and a coarse filtration ceramic membrane module sewage discharge bottom valve (19). Among them, the coarse filtration ceramic membrane module (22) is connected to a coarse filtration ceramic membrane module feed pump (20) and a coarse filtration ceramic membrane module feed valve (21). The fine filtration ceramic membrane module (18) is connected to a fine filtration ceramic membrane module feed pump (17) and a fine filtration ceramic membrane module feed valve (4);The fine filtration ceramic membrane module (18) includes a fine filtration ceramic membrane concentrate discharge valve (5), a fine filtration ceramic membrane backwash valve (6), a fine filtration ceramic membrane permeate discharge valve (7), and a fine filtration ceramic membrane module blowdown bottom valve (16). Among them, the fine filtration ceramic membrane module (18) is connected to a fine filtration ceramic membrane module feed pump (17) and a fine filtration ceramic membrane module feed valve (4), and the fine filtration ceramic membrane module blowdown bottom valve (16) is connected to a residual liquid storage tank feed pipe (27).; 2. The integrated mine water oil removal equipment NTMOWT according to claim 1, characterized in that: The oil-containing concentrated liquid storage tank (1) is connected to the oil-containing sewage raw liquid storage tank (25) through the oil-containing concentrated liquid drain bottom valve (34), and the stratified water phase is discharged into the oil-containing sewage raw liquid storage tank (25).

3. The integrated mine water oil removal equipment NTMOWT according to claim 1, characterized in that: In the coarse filtration ceramic membrane module (22), the pore diameter of the coarse filtration ceramic membrane tube is 100 - 200 nm, and the head of the coarse filtration ceramic membrane module feed pump (20) is controlled at 10 - 15 m.

4. The integrated mine water oil removal equipment NTMOWT according to claim 1, characterized in that: In the fine filtration ceramic membrane module (18), the pore diameter of the fine filtration ceramic membrane tube is 10 - 30 nm, and the head of the fine filtration ceramic membrane module feed pump (17) is controlled at 20 - 30 m.

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