CN210656565U - Oily industrial wastewater treatment device - Google Patents
Oily industrial wastewater treatment device Download PDFInfo
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- CN210656565U CN210656565U CN201920864229.8U CN201920864229U CN210656565U CN 210656565 U CN210656565 U CN 210656565U CN 201920864229 U CN201920864229 U CN 201920864229U CN 210656565 U CN210656565 U CN 210656565U
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Abstract
The utility model relates to the field of environmental protection, in particular to an oil-containing industrial wastewater treatment device and a treatment method. The utility model provides an oily industrial wastewater treatment device, the device include that support body, water oil separating elevated tank and oil slick receive the jar, the utility model discloses can guarantee the height of upper oil slick liquid column, gather more oil slick can overflow smoothly and go out more, get into oil slick and receive the jar. The oil-water separation is realized through a continuous automatic overflow mode, and the device has the characteristics of saving capital investment, reducing operation cost and improving the operation efficiency of the device.
Description
Technical Field
The utility model relates to an environmental protection field especially relates to an oily industrial wastewater treatment device.
Background
Industrial sewage of a chemical process contains, before treatment: oils, solvents, slurries, etc. floating on the water surface have a high chemical oxygen demand (COD value) and are generally acidic. The national environmental regulations stipulate: the industrial sewage must reach the discharge standard. The industrial sewage treatment usually adopts a biological contact oxidation method. The process flow comprises the following steps: a grid (for intercepting suspended matters and impurities on the water surface, and separating oil from water); adjusting a lift pump; saving pool (adding medicine, mixing, adjusting pH value of sewage 7-8.5, adding alkali to neutralize acid in water); a contact oxidation tank (filling, aeration and oxidation); and (5) performing pressure filtration on the effluent of the secondary sedimentation tank.
Wherein, the grid is composed of a group (or a plurality of groups) of parallel metal grid bars and a frame. Is obliquely arranged at the inlet of the water inlet channel. The slag (oil) removing method based on the grating comprises two methods, namely an artificial grating and a mechanical grating. The adjusting tank is generally a steel rib concrete building with a large floor area. It has the following functions: one aspect is regulating the amount of water. Secondly, in order to ensure the stable operation of the subsequent anaerobic reaction, the sewage treatment device must have the functions of neutralizing, adding chemicals, mixing and the like.
The construction treatment capacity is as follows: 400m3The grids and the adjusting tools of the sewage treatment device need a large amount of equipment, capital investment (about 65 ten thousand yuan) and building floor area (about 200 m)2). And the grid and the adjusting post need manual operation, and the operating cost of the device is increased by shifting the labor cost four or three shifts (20000 Yuan/month).
The disadvantages are that:
1. the occupied areas of the grating and the adjusting tank are large;
2. capital construction and equipment investment cost are high;
3. the field operation needs manpower, and the operation cost is high;
4. the grating and the regulating tank are generally operated in an open (not closed) mode, and the solvent and peculiar smell in the sewage volatilize to cause environmental pollution.
Disclosure of Invention
In order to solve the technical problem, the utility model aims at providing an oily industrial wastewater treatment device, the utility model discloses a device has realized water oil separating through the mode of continuous automatic overflow, has the characteristics of practicing thrift capital construction investment, reduction running cost, improvement device's operating efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an oily industrial wastewater treatment device comprises a frame body, an oil-water separation elevated tank and a floating oil receiving tank, wherein the oil-water separation elevated tank is arranged at the upper part of the frame body, the floating oil receiving tank is arranged at the lower part of the frame body, the top of the oil-water separation elevated tank is connected with an oily sewage inlet pipe, the oily sewage inlet pipe extends to the inside of the oil-water separation elevated tank, and a water baffle is arranged below an oily sewage outlet; one side part of the oil-water separation elevated tank is provided with an oil slick overflow port above the oily sewage water outlet, the oil slick overflow port is connected with an oil guide pipe, the oil guide pipe is connected to an oil slick receiving tank, one side part of the oil-water separation elevated tank is provided with a separated sewage water outlet below the oily sewage water outlet, the separated sewage water outlet is connected with an inverted U-shaped pipe, the inverted U-shaped pipe is connected to a sewage treatment device, and the top of the oil-water separation elevated tank and the top of the inverted U-shaped pipe are both connected with a vent pipe; the level of the oil slick overflow port is h, the height of the oil layer is h1, the height of the water layer is h2, the height of the top of the inverted U-shaped pipe is h3, and delta h-h3 (rho-h 3)Water (W)-ρOil) H1, wherein the engineering correction range of Δ h is-50 mm to 50 mm.
As a further improvement, the water outlet of the oily sewage inlet pipe is a porous water flow distributor. The impact of water flow on sewage at the lower part of the elevated tank can be reduced, and oil and water are layered relatively statically.
As a further improvement, the bottom of the floating oil receiving tank is provided with a water separator, the oil outlet end of the water separator is connected to the waste oil barrel, and the water outlet end of the water separator is connected to the sewage treatment device.
As a further improvement, the bottom of the oil-water separation elevated tank is provided with a tank bottom sewage outlet which is connected to a sewage treatment device.
As a further improvement, the sewage treatment device comprises a neutralization kettle, a liquid alkali elevated tank is arranged on the upper portion of the neutralization kettle, an online PH value detector is arranged on the neutralization kettle, the PH value detected online sends an opening or closing signal to an adjusting valve on an outlet pipe at the bottom of the liquid alkali elevated tank through a PLC (programmable logic controller), the adjusting valve is opened timely to discharge alkali into the neutralization kettle, and the PH value is kept within the range of 7.0-8.5.
The utility model discloses owing to adopted foretell technical scheme, suitable delta h value can guarantee the height of upper oil slick liquid column, gathers more oil slick smoothly and overflows, gets into the oil slick and receives jar more. The oil-water separation is realized through a continuous automatic overflow mode, and the device has the characteristics of saving capital investment, reducing operation cost and improving the operation efficiency of the device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following describes in detail an embodiment of the present invention with reference to the drawings.
As shown in figure 1 a oily industrial wastewater treatment device, the device includes that support body 1, water oil separating elevated tank 2 and oil slick receive jar 3, and water oil separating elevated tank 2 sets up on the upper portion of support body 1, and oil slick receives jar 3 setting in the lower part of support body 1, water oil separating elevated tank 2 top connect oily sewage inlet tube 4, oily sewage inlet tube 4 extends to the inside of water oil separating elevated tank 2, oily sewage delivery port 5 is porous rivers distributor to be provided with breakwater 6 below oily sewage delivery port 5. A floating oil overflow port 7 is formed in one side portion of the oil-water separation elevated tank 2 above the oily sewage water outlet 5, the floating oil overflow port 7 is connected with an oil guide pipe 8, the oil guide pipe 8 is connected to the floating oil receiving tank 3, a water separator 12 is arranged at the bottom of the floating oil receiving tank 3, the oil outlet end of the water separator 12 is connected to the waste oil tank, and the water outlet end of the water separator is connected to a sewage treatment device. A separation sewage outlet 9 is arranged on one side of the oil-water separation elevated tank 2 below the oily sewage outlet 5, the separation sewage outlet 9 is connected with an inverted U-shaped pipe 10, the inverted U-shaped pipe 10 is connected to a sewage treatment device, and a vent pipe 11 is connected and arranged at the top of the oil-water separation elevated tank 2 and the top of the inverted U-shaped pipe 10.
As shown in fig. 1, the level of the oil slick overflow port 7 is h, the height of the oil layer after separation in the oil-water separation head tank 2 is h1, the height of the water layer is h2, the height of the top of the inverted U-shaped pipe 10 is h3, and Δ h-h3 (ρ h-h 3)Water (W)-ρOil) And h1, wherein the engineering correction range of the delta h is-50 mm. Setting rhoWater (W)Is 1, when h1 is 1m, Δ h is 0.15 m. The engineering-corrected delta h is selected to be 200 mm.
As shown in figure 1, the sewage treatment device comprises a neutralization kettle 14, a liquid caustic soda elevated tank 15 is arranged on the upper portion of the neutralization kettle 14, an online pH value detector 16 is arranged on the neutralization kettle 14, the online pH value detected sends an opening or closing signal to an adjusting valve on an outlet pipe at the bottom of the liquid caustic soda elevated tank 15 through a PLC (programmable logic controller), the adjusting valve is opened timely to discharge caustic soda into the kettle, and the pH value is kept within the range of 7.0-8.5.
The utility model discloses a method for treating oily industrial wastewater, which adopts the device and comprises the following steps:
1) collecting the workshop sewage into a sewage collecting tank, and settling and removing larger suspended matters;
2) the sewage flows into the oil-water separation head tank through a pipeline by the delivery pump;
3) when the oil and the water are relatively static, the oil and the water are automatically layered;
4) the regulated sewage enters a sewage treatment device, then enters a contact oxidation tank and a secondary sedimentation tank, and the effluent is discharged after reaching the standard and is subjected to sludge filter pressing;
5) the floating oil flows into the floating oil receiving tank after overflowing, and then is transported to the incinerator for incineration through the oil ton barrel.
The utility model discloses owing to adopted foretell technical scheme, have following characteristics:
1. the unique structure of the oil-water separation head tank and the delta h value determined by theoretical calculation are utilized to enable oil and water to be relatively statically layered, so that oil and water separation is realized, continuous automatic overflow is realized, and no external power is required in the process. The tool has compact structure and lower equipment cost, thereby saving capital investment (60 ten thousand yuan/set); the floor area of the device is reduced (110 m)2)；
2. The whole process has high automatic control degree and does not need specially-assigned personnel to set a post for operation. Thereby reducing the operation cost (the labor wage is 20000 yuan/month).
3. The working procedures of lifting by an industrial sewage pump, oil-water separation, stirring and mixing, adding medicine, neutralizing and adjusting the pH value and the like are carried out in a closed space by 100 percent, so that the volatilization of solvents and peculiar smell in sewage is reduced, and the environmental pollution is greatly reduced.
4. The neutralization kettle is provided with a pH value on-line detection instrument, and the neutralization reaction is automatically and accurately controlled by alkali, so that the sewage adjusting quality is improved, and the stable proceeding of the subsequent anaerobic reaction is ensured.
5. The whole tooling equipment is arranged in sequence in high and low, so that the intermediate pump conveying link is reduced, the power consumption is saved, and the adjustment and control of the sewage flow are facilitated.
6. The company belongs to the fine chemical industry, and the occupied area of the enterprise is only 40 mu. The available area of the plant area is very limited, and the sewage treatment process adopts a biological contact oxidation method. By using the oil-water automatic separation device, the investment cost is reduced, and the occupied area of the whole sewage treatment device is saved. The oil-water automatic separation technology does not need too many field operators, and the liquid in the whole process flows to the next process by utilizing the favorable elevation of the elevation tank. Greatly saving the power consumption cost of the device.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including by way of illustration of the disclosed embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The oily industrial wastewater treatment device is characterized by comprising a frame body (1), an oil-water separation elevated tank (2) and a floating oil receiving tank (2)3) The oil-water separation elevated tank (2) is arranged at the upper part of the frame body (1), the floating oil receiving tank (3) is arranged at the lower part of the frame body (1), the top of the oil-water separation elevated tank (2) is connected with an oily sewage inlet pipe (4), the oily sewage inlet pipe (4) extends to the inside of the oil-water separation elevated tank (2), and a water baffle plate (6) is arranged below an oily sewage outlet (5); a floating oil overflow port (7) is arranged on one side part of the oil-water separation elevated tank (2) above the oily sewage water outlet (5), the floating oil overflow port (7) is connected with an oil guide pipe (8), the oil guide pipe (8) is connected to a floating oil receiving tank (3), a separated sewage water outlet (9) is arranged on one side part of the oil-water separation elevated tank (2) below the oily sewage water outlet (5), the separated sewage water outlet (9) is connected with an inverted U-shaped pipe (10), the inverted U-shaped pipe (10) is connected to a sewage treatment device, and vent pipes (11) are respectively connected and arranged on the top of the oil-water separation elevated tank (2) and the top of the inverted U-shaped pipe (10); the elevation of the floating oil overflow port (7) is h, the height of an oil layer after separation in the oil-water separation head tank (2) is h1, the height of a water layer is h2, the height of the top of the inverted U-shaped pipe (10) is h3, delta h is an engineering correction range, and the height of the floating oil overflow port is delta h = h-h 3= rhoWater (W)* h1-ρOil* h1。
2. The oily industrial wastewater treatment device according to claim 1, characterized in that the oily wastewater outlet (5) is a porous water flow distributor.
3. The oily industrial wastewater treatment device according to claim 1, characterized in that the bottom of the floating oil receiving tank (3) is provided with a water separator (12), the oil outlet end of the water separator (12) is connected to the wastewater barrel, and the water outlet end is connected to the sewage treatment device.
4. The oily industrial wastewater treatment device according to claim 1, characterized in that the bottom of the oil-water separation head tank (2) is provided with a tank bottom sewage outlet (13), and the tank bottom sewage outlet (13) is connected to a sewage treatment device.
5. The oily industrial wastewater treatment device according to claim 1, characterized in that the wastewater treatment device comprises a neutralization kettle (14), a liquid alkali head tank (15) is arranged at the upper part of the neutralization kettle (14), a PH value on-line detector (16) is arranged on the neutralization kettle (14), and the PH value on-line detected sends an opening or closing signal to a regulating valve on an outlet pipe at the bottom of the liquid alkali head tank (15) through a PLC controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920864229.8U CN210656565U (en) | 2019-06-10 | 2019-06-10 | Oily industrial wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920864229.8U CN210656565U (en) | 2019-06-10 | 2019-06-10 | Oily industrial wastewater treatment device |
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| CN210656565U true CN210656565U (en) | 2020-06-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217943A (en) * | 2019-06-10 | 2019-09-10 | 浙江博聚新材料有限公司 | A kind of oil-containing industrial water processing unit and processing method |
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- 2019-06-10 CN CN201920864229.8U patent/CN210656565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217943A (en) * | 2019-06-10 | 2019-09-10 | 浙江博聚新材料有限公司 | A kind of oil-containing industrial water processing unit and processing method |
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