Lubricating oil production wastewater treatment equipment and treatment method

Abstract

The invention belongs to the technical field of lubricating oil wastewater treatment, and particularly discloses lubricating oil production wastewater treatment equipment which comprises a treatment pond, and one side of the treatment pond is communicated with a liquid inlet pipe; the treatment method based on the lubricating oil production wastewater treatment equipment comprises the following steps: S1, introducing wastewater into the treatment tank through the liquid inlet pipe, and adding a flocculating agent into the treatment tank; s2, starting a motor to drive a rotating rod to rotate a stirring rod through two transmission mechanisms under the action of a connecting shaft, so as to realize the mixing of the wastewater and the flocculant in the treatment tank; by arranging the separation mechanism, floating foam and floating oil can be independently treated and separated at the same time, the treatment efficiency is improved, the floating foam and the floating oil can be stored and discharged through the arrangement of a connecting box and a mounting box, the follow-up treatment process is facilitated, a stainless steel band and an adjusting plate are utilized, oil stains can be adhered through the stainless steel band, and the oil stain removal efficiency is improved. And the adjusting plate can be used for lifting and discharging the floating foam after being unfolded, so that the purpose of independently cleaning the floating foam is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of lubricating oil wastewater treatment, and specifically discloses a lubricating oil production wastewater treatment device and a treatment method. Background Art

[0002] In the process of lubricating oil production, wastewater is inevitably generated, and these water bodies contain pollutants such as oil, heavy metals, and organic substances.

[0003] At present, the floating oil and suspended solids in the wastewater of stainless steel belts are mainly treated in the following ways:

[0004] Utilize the gravity separation principle of the oil separation tank to remove floating oil and part of the emulsified oil. In order to improve the oil-water separation effect, a demulsifier can be added for auxiliary treatment, and at the same time, a flocculant can be added during the treatment process of the oil separation tank to flocculate the suspended solids;

[0005] In the above method, the method of using the oil separation tank to treat floating oil mainly adopts the principle of gravity separation, and its waiting time is slow. And because the flocculant is usually put in with aeration for aeration treatment, the floating foam on the surface needs to be separated before separating the floating oil, so as to separately treat the separated floating foam and floating oil subsequently. The operation is rather cumbersome and the treatment time is long. Therefore, those skilled in the art have proposed a lubricating oil production wastewater treatment device and a treatment method to solve the above-mentioned problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a lubricating oil production wastewater treatment device and a treatment method to solve the problem that the existing technology cannot quickly separate and treat floating foam and floating oil, and the treatment efficiency is low.

[0007] To achieve the above object, the present invention provides a lubricating oil production wastewater treatment device and a treatment method, including a treatment tank. One side of the treatment tank is communicated with a liquid inlet pipe, and the other side of the treatment tank is communicated with a liquid discharge pipe. The inner bottom wall of the treatment tank is provided with evenly distributed air diffuser pipes, and a separation mechanism is arranged inside the treatment tank. The separation mechanism is used for separating and treating the oil in the wastewater. The inner wall of the treatment tank is fixedly connected with two symmetrically distributed connecting shells, and the surface of the connecting shell is communicated with evenly distributed air injection pipes;

[0008] Among them, the separation mechanism includes a mixing component and a treatment component. The mixing component is arranged inside the treatment tank and is used for mixing the wastewater in the treatment tank with the flocculant. The treatment component is arranged on the surface of the mixing component and is used for separating the oil.

[0009] In the above technical solution, preferably, the mixing component includes two mounting rods fixedly connected to the top of the treatment tank. One side of one of the mounting rods is provided with a motor, the output shaft of the motor is fixedly connected to a connecting shaft, the other end of the connecting shaft sequentially penetrates through the two mounting rods and is fixedly connected to two transmission mechanisms, the other end of the transmission mechanism is fixedly connected to a rotating rod, the other end of the rotating rod penetrates through the treatment tank and is rotatably connected to the inner wall of the treatment tank, and the surface of the rotating rod is fixedly connected with uniformly distributed stirring rods.

[0010] In the above technical solution, preferably, the treatment component includes a permanent magnet fixedly connected to the surface of the connecting shaft and located between the two mounting rods, a fixed shaft fixedly connected to the inner wall of the treatment tank, a guiding column fixedly connected to the surface of the fixed shaft, a stainless steel belt disposed on the surface of the permanent magnet, the other end of the stainless steel belt is sleeved on the surface of the guiding column, the surface of the permanent magnet is fixedly connected with three groups of spacer rings, the number of each group of spacer rings is two, and grooves are formed on the surface of the permanent magnet in three groups and located between the two spacer rings, and an oil-loving layer is provided on the surface of the stainless steel belt.

[0011] In the above technical solution, preferably, uniformly distributed through grooves are formed on the surface of the stainless steel belt, an adjusting plate is disposed on the inner wall of the through groove, one end of the adjusting plate is rotatably connected to the inner wall of the through groove, and a second limiting block is fixedly connected to the inner wall of the through groove and located on the inner side of the adjusting plate away from the stainless steel belt, and a first limiting block symmetrically distributed with the second limiting block is fixedly connected to the inner wall of the through groove.

[0012] In the above technical solution, preferably, a guiding inclined surface is formed on the inner wall of the through groove away from the first limiting block.

[0013] In the above technical solution, preferably, uniformly distributed mounting cavities are formed inside the guiding column, a push rod is slidably connected to the inner wall of the mounting cavity, one end of the push rod penetrates out of the guiding column, and a spring is fixedly connected between the other end of the push rod and the inner wall of the mounting cavity.

[0014] In the above technical solution, preferably, the treatment component further includes a connection box fixedly connected to the inner wall of the treatment tank and located inside the stainless steel belt, the liquid level in the treatment tank is flush with the bottom surface of the connection box, and a connection hole communicating with the outside is formed on the surface of the connection box.

[0015] In the above technical solution, preferably, two symmetrically distributed mounting boxes are fixedly connected to the top of the treatment tank, a passing area is formed between the two mounting boxes, the stainless steel belt penetrates out of the mounting box, a scraping plate is fixedly connected to the top of the mounting box, uniformly distributed collecting grooves are formed on the surface of the scraping plate, and a discharge hole is formed on one side of the mounting box.

[0016] A method for treating wastewater from lubricating oil production, comprising the following method steps,

[0017] S1. Introduce the wastewater into the treatment tank through the liquid inlet pipe, and add a flocculant into the treatment tank;

[0018] S2. Start the motor, and under the action of the connecting shaft, drive the rotating rod through two transmission mechanisms to make the stirring rod rotate, so as to realize the mixing of the wastewater and the flocculant in the treatment tank;

[0019] S3. Start the aeration pipe to aerate the wastewater in the tank. During this process, inject gas into the inside of the connecting shell, and discharge it through the air injection pipe, so as to realize the purpose of pushing the floating foam to the middle of the tank;

[0020] S4. During the startup of the motor, the treatment assembly can clean the floating foam generated during the treatment process, and at the same time separate the oil stains in the wastewater, achieving the purpose of multiple treatments.

[0021] S5. After the treatment is completed, discharge the wastewater in the tank through the drain pipe.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By setting the separation mechanism, the floating foam and floating oil can be separately treated and separated at the same time, improving the treatment efficiency. The setting of the connecting box and the installation box can store and discharge the floating foam and floating oil respectively, facilitating the subsequent treatment process. By using the stainless steel belt and the adjusting plate, the oil stains can be adhered by the stainless steel belt, and after the adjusting plate is unfolded, it can be used to lift and discharge the floating foam, achieving the purpose of separately cleaning the floating foam, with a relatively high treatment efficiency.

[0024] 2. By setting the separation mechanism, after adding the flocculant, the separation mechanism can be used to enhance the mixing effect of the wastewater and the flocculant in the tank, without the need for separate mixing, effectively improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic sectional view of the present invention;

[0027] Figure 3 is a schematic structural diagram of the treatment mechanism of the present invention;

[0028] Figure 4 is a schematic diagram of the distribution of the grooves of the present invention;

[0029] Figure 5 is a schematic structural diagram of the stainless steel belt of the present invention;

[0030] Figure 6 Schematic diagram of the distribution of the first limiting block, adjusting plate and second limiting block of the present invention;

[0031] Figure 7 Schematic diagram of the distribution of the push rod of the present invention;

[0032] Figure 8 Schematic diagram of the distribution of the connection box and installation box of the present invention.

[0033] In the figure: 1, treatment tank; 101, liquid inlet pipe; 102, aeration pipe; 103, liquid discharge pipe; 2, separation mechanism; 201, transmission mechanism; 202, rotating rod; 203, stirring rod; 204, motor; 205, connecting shaft; 21, treatment component; 2101, permanent magnet; 2102, stainless steel belt; 2103, guide post; 2104, groove; 2105, spacer ring; 2106, through groove; 2107, adjusting plate; 2108, guide inclined surface; 2109, first limiting block; 2110, second limiting block; 2111, push rod; 2112, spring; 2113, installation cavity; 2114, connection box; 2115, installation box; 2116, collection tank; 2117, scraper; 2118, fixed shaft; 3, connection shell; 301, air injection pipe. Specific embodiments

[0034] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0036] As Figures 1 - 8 shown, a lubricating oil production wastewater treatment device and treatment method include a treatment tank 1. A liquid inlet pipe 101 is communicated with one side of the treatment tank 1, a liquid discharge pipe 103 is communicated with the other side of the treatment tank 1, an aeration pipe 102 evenly distributed is arranged on the inner bottom wall of the treatment tank 1, a separation mechanism 2 is arranged inside the treatment tank 1, the separation mechanism 2 is used for separating and treating the oil stain in the wastewater, two symmetrically distributed connection shells 3 are fixedly connected to the inner wall of the treatment tank 1, and evenly distributed air injection pipes 301 are communicated with the surface of the connection shell 3;

[0037] Among them, the separation mechanism 2 includes a mixing component and a treatment component 21. The mixing component is arranged inside the treatment tank 1 and is used for mixing the wastewater and the flocculant in the treatment tank 1, and the treatment component 21 is arranged on the surface of the mixing component and is used for separating the oil stain.

[0038] The liquid inlet pipe 101 is used for introducing the production wastewater. After the wastewater is introduced into the treatment tank 1, a flocculant is added, and the wastewater is aerated through the aeration pipe 102. During this process, the separation mechanism 2 is used to separate the oil stains. After the wastewater in the tank is treated, it is discharged through the drain pipe 103.

[0039] As Figures 1 - 8 shown, the mixing assembly includes two mounting rods fixedly connected to the top of the treatment tank 1. A motor 204 is provided on one side of one of the mounting rods. The output shaft of the motor 204 is fixedly connected to a connecting shaft 205. The other end of the connecting shaft 205 sequentially penetrates through the two mounting rods and is fixedly connected to two driving mechanisms 201. The other end of the driving mechanism 201 is fixedly connected to a rotating rod 202. The other end of the rotating rod 202 penetrates through the treatment tank 1 and is rotatably connected to the inner wall of the treatment tank 1. The surface of the rotating rod 202 is fixedly connected with uniformly distributed stirring rods 203.

[0040] By starting the motor 204, the connecting shaft 205 can be driven to rotate. During this process, the two rotating rods 202 can be synchronously driven to rotate through the driving mechanism 201, so as to drive the stirring rods 203 to stir the wastewater in the tank, thereby enhancing the combination effect of the wastewater in the tank and the flocculant and improving the treatment effect of the wastewater.

[0041] As Figures 1 - 8 shown, the treatment assembly 21 includes a permanent magnet 2101 fixedly connected to the surface of the connecting shaft 205 and located between the two mounting rods. A fixed shaft 2118 is fixedly connected to the inner wall of the treatment tank 1. A guiding column 2103 is fixedly connected to the surface of the fixed shaft 2118. A stainless steel belt 2102 is arranged on the surface of the permanent magnet 2101. The other end of the stainless steel belt 2102 is sleeved on the surface of the guiding column 2103. The surface of the permanent magnet 2101 is fixedly connected with three groups of spacer rings 2105. The number of each group of spacer rings 2105 is two, and three groups of grooves 2104 are formed on the surface of the permanent magnet 2101 and located between the two spacer rings 2105. An oil-loving layer is arranged on the surface of the stainless steel belt 2102.

[0042] The surface of the stainless steel belt 2102 is provided with uniformly distributed through grooves 2106. An adjusting plate 2107 is arranged on the inner wall of the through groove 2106. One end of the adjusting plate 2107 is rotatably connected to the inner wall of the through groove 2106. And a second limiting block 2110 is fixedly connected to the inner wall of the through groove 2106 and located on the inner side of the adjusting plate 2107 away from the stainless steel belt 2102. A first limiting block 2109 is fixedly connected to the inner wall of the through groove 2106 and symmetrically distributed with the second limiting block 2110.

[0043] A guiding inclined surface 2108 is formed on the inner wall of the through groove 2106 away from the first limiting block 2109.

[0044] The interior of the guide post 2103 is provided with uniformly distributed installation cavities 2113. A push rod 2111 is slidably connected to the inner wall of the installation cavity 2113. One end of the push rod 2111 penetrates out of the guide post 2103, and a spring 2112 is fixedly connected between the other end of the push rod 2111 and the inner wall of the installation cavity 2113;

[0045] During the rotation of the connecting shaft 205, the permanent magnet 2101 can be synchronously driven to rotate. Through the permanent magnet 2101, the stainless steel belt 2102 can be driven to rotate around the guide post 2103. During this process, the oil stains in the wastewater can adhere to the surface of the stainless steel belt 2102, and the purpose of separating from the wastewater can be achieved under the movement of the stainless steel belt 2102;

[0046] During the movement of the stainless steel belt 2102, the adjusting plate 2107 can be synchronously driven to move;

[0047] When the stainless steel belt 2102 moves to the guide post 2103, under the action of the push rod 2111, the adjusting plate 2107 can be pushed to flip and offset, so that it can be unfolded. The setting of the second limit block 2110 can ensure the position of the adjusting plate 2107 after flipping, so that its inner side is flush with the inclined surface of the first limit block 2109. Thus, the unfolded adjusting plate 2107 can lift the foam generated by the aeration and the flocculant mixture on the surface of the wastewater during the upward movement, realizing the separation treatment of the foam during the wastewater treatment process. When the stainless steel belt 2102 passes through the permanent magnet 2101, the adjusting plate 2107 can be adsorbed and reset under the action of the permanent magnet 2101. At this time, the first limit block 2109 can limit the position of the adjusting plate 2107 to avoid the situation of getting too close to the permanent magnet 2101. At the same time, the foam can drip into the groove 2104 under the action of gravity and finally drip from the bottom of the permanent magnet 2101 as the rotation progresses.

[0048] As Figures 1 - 8 shown, the treatment assembly 21 further includes a connection box 2114 fixedly connected to the inner wall of the treatment tank 1 and located inside the stainless steel belt 2102. The liquid level in the treatment tank 1 is flush with the bottom surface of the connection box 2114, and the surface of the connection box 2114 is provided with connection holes communicating with the outside.

[0049] Two symmetrically distributed mounting boxes 2115 are fixedly connected to the top of the treatment tank 1. A passing area is formed between the two mounting boxes 2115. The stainless steel belt 2102 penetrates out of the mounting box 2115. A scraper 2117 is fixedly connected to the top of the mounting box 2115. Uniformly distributed collection grooves 2116 are formed on the surface of the scraper 2117. A discharge hole is formed on one side of the mounting box 2115.

[0050] The setting of the connection box 2114 enables the dripping foam to fall inside the connection box 2114 and finally be discharged through the connection holes. The setting that the liquid level in the treatment tank 1 is flush with the bottom surface of the connection box 2114 can ensure that the wastewater does not enter the inside of the connection box 2114, and the foam is located outside the connection box 2114. During the upward movement of the stainless steel belt 2102 to separate the foam, a hopper-like lifting method is formed due to the obstruction of the surface of the connection box 2114, which can ensure the good lifting of the foam. As the adjusting plate 2107 moves, after passing through the connection box 2114, since there is no obstruction from the connection box 2114, most of the foam can be guided by the unfolded adjusting plate 2107 and the first limit block 2109 to drip into the inside of the connection box 2114 and be discharged;

[0051] The setting of the scraper 2117 can scrape the oil stains adhered to the surface of the stainless steel belt 2102, and the setting of the collection tank 2116 can collect the scraped oil stains and make them drip into the inside of the installation box 2115, and be separately separated and discharged through the discharge holes on the installation box 2115.

[0052] A method for treating wastewater from lubricating oil production includes the following method steps,

[0053] S1. Introduce the wastewater into the treatment tank 1 through the liquid inlet pipe 101, and put a flocculant into the treatment tank 1;

[0054] S2. Start the motor 204, and under the action of the connecting shaft 205, drive the rotating rod 202 to rotate the stirring rod 203 through the two transmission mechanisms 201, so as to realize the mixing of the wastewater and the flocculant inside the treatment tank 1;

[0055] S3. Start the aeration pipe 102 to aerate the wastewater in the tank. During this process, inject gas into the inside of the connection shell 3, and make it discharge through the jet pipe 301 to achieve the purpose of pushing the foam to the middle of the tank;

[0056] S4. During the start of the motor 204, the treatment assembly 21 can clean the foam generated during the treatment process, and at the same time separate and treat the oil stains in the wastewater, achieving the purpose of multiple treatments.

[0057] S5. After the treatment is completed, discharge the wastewater in the tank through the drain pipe 103.

[0058] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A lubricating oil production wastewater treatment device, comprising a treatment tank (1), characterized in that, One side of the treatment tank (1) is connected to a liquid inlet pipe (101), the other side of the treatment tank (1) is connected to a liquid discharge pipe (103), the inner bottom wall of the treatment tank (1) is provided with evenly distributed air diffuser pipes (102), the interior of the treatment tank (1) is provided with a separation mechanism (2), the separation mechanism (2) is used for separating and treating oil stains in the wastewater, the inner wall of the treatment tank (1) is fixedly connected with two connecting shells (3) which are symmetrically distributed, and the surface of the connecting shell (3) is communicated with evenly distributed air injection pipes (301); Among them, the separation mechanism (2) includes a mixing component and a treatment component (21), the mixing component is arranged inside the treatment tank (1) and is used for mixing the wastewater and the flocculant in the treatment tank (1), and the treatment component (21) is arranged on the surface of the mixing component and is used for separating the oil stains.

2. The lubricating oil production wastewater treatment equipment according to claim 1, characterized in that, The mixing component includes two mounting rods fixedly connected to the top of the treatment tank (1). One side of one of the mounting rods is provided with a motor (204), the output shaft of the motor (204) is fixedly connected with a connecting shaft (205), the other end of the connecting shaft (205) sequentially penetrates through the two mounting rods and is fixedly connected with two transmission mechanisms (201), the other end of the transmission mechanism (201) is fixedly connected with a rotating rod (202), the other end of the rotating rod (202) penetrates through the treatment tank (1) and is rotatably connected to the inner wall of the treatment tank (1), and the surface of the rotating rod (202) is fixedly connected with evenly distributed stirring rods (203).

3. The wastewater treatment equipment for lubricating oil production according to claim 2, wherein, The treatment component (21) includes a permanent magnet (2101) fixedly connected to the surface of the connecting shaft (205) and located between the two mounting rods, the inner wall of the treatment tank (1) is fixedly connected with a fixed shaft (2118), the surface of the fixed shaft (2118) is fixedly connected with a guiding column (2103), the surface of the permanent magnet (2101) is provided with a stainless steel belt (2102), the other end of the stainless steel belt (2102) is sleeved on the surface of the guiding column (2103), the surface of the permanent magnet (2101) is fixedly connected with three groups of spacer rings (2105), the number of each group of spacer rings (2105) is two, and the surface of the permanent magnet (2101) is provided with three groups of grooves (2104) located between the two spacer rings (2105), and the surface of the stainless steel belt (2102) is provided with an oil-loving layer.

4. The wastewater treatment equipment for lubricating oil production according to claim 3, characterized in that, The surface of the stainless steel belt (2102) is provided with evenly distributed through grooves (2106), the inner wall of the through groove (2106) is provided with an adjusting plate (2107), one end of the adjusting plate (2107) is rotatably connected to the inner wall of the through groove (2106), and the inner wall of the through groove (2106) is fixedly connected with a second limiting block (2110) located away from the inner side of the stainless steel belt (2102) of the adjusting plate (2107), and the inner wall of the through groove (2106) is fixedly connected with a first limiting block (2109) symmetrically distributed with the second limiting block (2110).

5. A lubricating oil production wastewater treatment device according to claim 4, characterized in that, On the inner wall of one side of the through groove (2106) away from the first limiting block (2109), a guiding inclined surface (2108) is provided.

6. The wastewater treatment equipment for lubricating oil production according to claim 5, characterized in that, Inside the guiding column (2103), uniformly distributed installation cavities (2113) are provided. A push rod (2111) is slidably connected to the inner wall of the installation cavity (2113). One end of the push rod (2111) penetrates out of the guiding column (2103), and a spring (2112) is fixedly connected between the other end of the push rod (2111) and the inner wall of the installation cavity (2113).

7. The wastewater treatment equipment for lubricating oil production according to claim 6, wherein, The treatment assembly (21) further includes a connection box (2114) fixedly connected to the inner wall of the treatment tank (1) and located inside the stainless steel belt (2102). The liquid level in the treatment tank (1) is flush with the bottom surface of the connection box (2114). A connection hole communicating with the outside is provided on the surface of the connection box (2114).

8. A wastewater treatment device for lubricating oil production according to claim 7, characterized in that, On the top of the treatment tank (1), two symmetrically distributed installation boxes (2115) are fixedly connected. A passing area is formed between the two installation boxes (2115). The stainless steel belt (2102) penetrates out of the installation box (2115). A scraping plate (2117) is fixedly connected to the top of the installation box (2115). Uniformly distributed collection grooves (2116) are provided on the surface of the scraping plate (2117). A discharge hole is provided on one side of the installation box (2115).

9. A method for treating wastewater from lubricating oil production, according to a wastewater treatment device for lubricating oil production as described in any one of claims 1-8, characterized in that, Including the following method steps, S1. Wastewater is introduced into the treatment tank (1) through the liquid inlet pipe (101), and a flocculant is put into the treatment tank (1). S2. When the motor (204) is started, under the action of the connecting shaft (205), the rotating rod (202) is driven by the two transmission mechanisms (201) to rotate the stirring rod (203), so as to realize the mixing of the wastewater and the flocculant in the treatment tank (1). S3. The aeration pipe (102) is started to perform aeration treatment on the wastewater in the tank. During this process, gas is injected into the inside of the connection shell (3), and is discharged through the air injection pipe (301), so as to achieve the purpose of pushing the floating foam to the middle of the tank. S4. During the start of the motor (204), the treatment assembly (21) can clean the floating foam generated during the treatment process, and at the same time separate the oil in the wastewater, achieving the purpose of multiple treatments. S5. After the treatment is completed, the wastewater in the tank is discharged through the liquid discharge pipe (103).

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