A lubricating oil production wastewater treatment equipment and method

Abstract

This invention belongs to the field of lubricating oil wastewater treatment technology, specifically disclosing a lubricating oil production wastewater treatment device, including a treatment tank, one side of which is connected to an inlet pipe; the treatment method based on the above-mentioned lubricating oil production wastewater treatment device is as follows: S1, wastewater is introduced into the treatment tank through the inlet pipe, and flocculant is added to the treatment tank; S2, the motor is started, and under the action of the connecting shaft, the rotating rod is driven by two transmission mechanisms to rotate the stirring rod, so as to achieve the mixing of wastewater and flocculant in the treatment tank; by setting a separation mechanism, foam and floating oil can be treated and separated separately at the same time, improving the treatment efficiency, and the setting of the connecting box and the installation box can store and discharge foam and floating oil respectively, which is convenient for subsequent treatment processes; by using stainless steel belts and adjusting plates, oil stains can be adhered by the stainless steel belts, and the adjusting plates can be used to lift and discharge foam after unfolding, so as to achieve the purpose of separate cleaning of foam.

Description

Technical Field

[0001] This invention belongs to the field of lubricating oil wastewater treatment technology, and specifically discloses a lubricating oil production wastewater treatment equipment and treatment method. Background Technology

[0002] Wastewater is inevitably generated during the production of lubricating oil. This water contains pollutants such as oil, heavy metals, and organic matter.

[0003] Currently, the floating oil and suspended solids in the wastewater from stainless steel strip processing are mainly treated using the following methods:

[0004] The principle of gravity separation in an oil separator is used to remove floating oil and some emulsified oil. To improve the oil-water separation effect, a demulsifier can be added to assist in the treatment. At the same time, a flocculant can be added during the oil separator treatment process to flocculate the suspended solids.

[0005] The above-mentioned method of using an oil separator to treat floating oil mainly adopts the principle of gravity separation, which is slow. In addition, since the flocculant is usually added in conjunction with aeration, the surface foam needs to be separated before the floating oil is separated, so that the separated foam and floating oil can be treated separately. The operation is cumbersome and the treatment time is long. Therefore, those skilled in the art have proposed a lubricating oil production wastewater treatment equipment and 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 equipment and treatment method to solve the problem that the existing technology cannot quickly separate and treat scum and floating oil, and has low treatment efficiency.

[0007] To achieve the above objectives, the present invention provides a lubricating oil production wastewater treatment equipment and treatment method, including a treatment tank, an inlet pipe connected to one side of the treatment tank, a drain pipe connected to the other side of the treatment tank, a uniformly distributed aeration pipe provided on the inner bottom wall of the treatment tank, a separation mechanism provided inside the treatment tank for separating oil from the wastewater, and two symmetrically distributed connecting shells fixedly connected to the inner wall of the treatment tank, with uniformly distributed jet pipes connected to the surface of the connecting shells.

[0008] The separation mechanism includes a mixing component and a treatment component. The mixing component is disposed inside the treatment tank and is used to mix the wastewater and flocculant in the treatment tank. The treatment component is disposed on the surface of the mixing component and is used to separate 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 of the mounting rods is equipped with a motor on one side. The output shaft of the motor is fixedly connected to a connecting shaft. The other end of the connecting shaft passes through the two mounting rods in sequence 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 passes through the treatment tank and is rotatably connected to the inner wall of the treatment tank. The surface of the rotating rod is fixedly connected with uniformly distributed stirring rods.

[0010] In the above technical solution, preferably, the processing 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 processing pool, a guide post fixedly connected to the surface of the fixed shaft, a stainless steel strip provided on the surface of the permanent magnet, the other end of the stainless steel strip being sleeved on the surface of the guide post, three sets of spacers fixedly connected to the surface of the permanent magnet, each set containing two spacers, and three sets of grooves located between the two spacers on the surface of the permanent magnet, and an oleophilic layer provided on the surface of the stainless steel strip.

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

[0013] In the above technical solution, preferably, the guide post has uniformly distributed mounting cavities inside, and a push rod is slidably connected to the inner wall of the mounting cavity. One end of the push rod passes through the guide post, and the other end of the push rod is fixedly connected to the inner wall of the mounting cavity with a spring.

[0014] In the above technical solution, preferably, the processing component further includes a connecting box fixedly connected to the inner wall of the processing pool and located inside the stainless steel strip, the liquid level in the processing pool is flush with the bottom surface of the connecting box, and the surface of the connecting box is provided with a connecting hole that communicates with the outside.

[0015] In the above technical solution, preferably, the top of the treatment pool is fixedly connected to two symmetrically distributed mounting boxes, a passage area is formed between the two mounting boxes, the stainless steel strip passes through the mounting boxes, a scraper is fixedly connected to the top of the mounting boxes, the surface of the scraper is provided with evenly distributed collection grooves, and a discharge hole is provided on one side of the mounting boxes.

[0016] A method for treating wastewater from lubricating oil production includes the following steps:

[0017] S1. Wastewater is introduced into the treatment tank through the inlet pipe, and flocculant is added into the treatment tank.

[0018] S2. Starting the motor will drive the rotating rod to rotate through two transmission mechanisms under the action of the connecting shaft, thereby achieving the mixing of wastewater and flocculant in the treatment tank;

[0019] S3. Start the aeration pipe to aerate the wastewater in the tank. During this process, gas is injected into the inside of the connecting shell and discharged through the jet pipe to push the foam towards the middle of the tank.

[0020] S4. During motor startup, the processing components can clean up the foam generated during the processing and separate the oil in the wastewater, thus achieving multiple treatment purposes.

[0021] S5. After treatment, the wastewater in the pool is discharged through the drain pipe.

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

[0023] 1. By setting up a separation mechanism, foam and oil can be processed and separated separately at the same time, which improves the processing efficiency. The connection box and installation box can store and discharge foam and oil separately, which facilitates subsequent processing. Using stainless steel belts and adjustment plates, oil stains can be adhered by the stainless steel belts, and the foam can be lifted and discharged after the adjustment plates are unfolded, so as to achieve the purpose of cleaning foam separately and the processing efficiency is high.

[0024] 2. By setting up a separation mechanism, after the flocculant is added, the mixing effect between the wastewater and the flocculant in the pool can be enhanced, eliminating the need for separate mixing and effectively improving treatment efficiency. Attached Figure Description

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

[0026] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the processing mechanism of the present invention;

[0028] Figure 4 This is a schematic diagram showing the distribution of the grooves in this invention;

[0029] Figure 5 This is a schematic diagram of the stainless steel strip structure of the present invention;

[0030] Figure 6 This is a schematic diagram showing the distribution of the first limiting block, the adjusting plate, and the second limiting block of the present invention.

[0031] Figure 7 This is a schematic diagram showing the distribution of the push rods of the present invention;

[0032] Figure 8 This is a schematic diagram showing the distribution of the connecting box and the mounting box of the present invention.

[0033] In the diagram: 1. Treatment tank; 101. Inlet pipe; 102. Aeration pipe; 103. Drain 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 strip; 2103. Guide column; 2104. Groove; 2105. Spacer ring; 2106. Through groove; 2107. Adjusting plate; 2108. Guide slope; 2109. First limit block; 2110. Second limit block; 2111. Push rod; 2112. Spring; 2113. Mounting cavity; 2114. Connecting box; 2115. Mounting box; 2116. Collection tank; 2117. Scraper; 2118. Fixed shaft; 3. Connecting shell; 301. Jet pipe. Detailed Implementation

[0034] To better understand the above-mentioned objectives, 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] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1-8 The present invention relates to a lubricating oil production wastewater treatment equipment and treatment method, comprising a treatment tank 1, an inlet pipe 101 connected to one side of the treatment tank 1, an outlet pipe 103 connected to the other side of the treatment tank 1, a uniformly distributed aeration pipe 102 provided on the inner bottom wall of the treatment tank 1, a separation mechanism 2 provided inside the treatment tank 1 for separating and treating oil stains in the wastewater, and two symmetrically distributed connecting shells 3 fixedly connected to the inner wall of the treatment tank 1, with uniformly distributed jet pipes 301 connected to the surface of the connecting shells 3.

[0037] The separation mechanism 2 includes a mixing component and a treatment component 21. The mixing component is disposed inside the treatment tank 1 and is used to mix the wastewater and flocculant in the treatment tank 1. The treatment component 21 is disposed on the surface of the mixing component and is used to separate the oil.

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

[0039] like Figures 1-8 As shown, the mixing component 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 passes through the two mounting rods in sequence and is fixedly connected to two transmission mechanisms 201. The other end of the transmission mechanism 201 is fixedly connected to a rotating rod 202. The other end of the rotating rod 202 passes 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 to uniformly distributed stirring rods 203.

[0040] By starting the motor 204, the connecting shaft 205 can be rotated. During this process, the two rotating rods 202 can be rotated synchronously through the transmission mechanism 201, thereby driving the stirring rod 203 to stir the wastewater in the tank. This enhances the binding effect between the wastewater and the flocculant in the tank and improves the wastewater treatment effect.

[0041] like Figures 1-8 As shown, the processing assembly 21 includes a permanent magnet 2101 fixedly connected to the surface of the connecting shaft 205 and located between two mounting rods. A fixed shaft 2118 is fixedly connected to the inner wall of the processing pool 1. A guide post 2103 is fixedly connected to the surface of the fixed shaft 2118. A stainless steel strip 2102 is provided on the surface of the permanent magnet 2101. The other end of the stainless steel strip 2102 is sleeved on the surface of the guide post 2103. Three sets of spacers 2105 are fixedly connected to the surface of the permanent magnet 2101. There are two spacers in each set. Three sets of grooves 2104 are opened on the surface of the permanent magnet 2101 and located between two spacers 2105. An oleophilic layer is provided on the surface of the stainless steel strip 2102.

[0042] The stainless steel strip 2102 has uniformly distributed through grooves 2106 on its surface. An adjusting plate 2107 is provided 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. A second limiting block 2110 located on the inner side of the adjusting plate 2107 away from the stainless steel strip 2102 is fixedly connected to the inner wall of the through groove 2106. A first limiting block 2109 symmetrically distributed with the second limiting block 2110 is fixedly connected to the inner wall of the through groove 2106.

[0043] A guide slope 2108 is provided on the inner wall of the through groove 2106 on the side away from the first limiting block 2109.

[0044] The guide post 2103 has evenly distributed mounting cavities 2113 inside. A push rod 2111 is slidably connected to the inner wall of the mounting cavity 2113. One end of the push rod 2111 passes through 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 mounting cavity 2113.

[0045] During the rotation of the connecting shaft 205, the permanent magnet 2101 can be driven to rotate synchronously. The permanent magnet 2101 can drive the stainless steel strip 2102 to rotate around the guide post 2103. During this process, the oil in the wastewater can adhere to the surface of the stainless steel strip 2102 and achieve separation from the wastewater under the movement of the stainless steel strip 2102.

[0046] The stainless steel strip 2102 can synchronously drive the adjusting plate 2107 to move during the movement of the stainless steel strip 2102.

[0047] When the stainless steel strip 2102 moves to the guide post 2103, the push rod 2111 can push the adjusting plate 2107 to flip and shift, allowing it to unfold. The second limiting block 2110 ensures that the inner side of the adjusting plate 2107 after flipping is flush with the inclined surface of the first limiting block 2109. Thus, the unfolded adjusting plate 2107 can lift the foam generated on the surface of the wastewater due to aeration and flocculant mixing during the upward movement, achieving the separation of foam during the wastewater treatment process. When the stainless steel strip 2102 passes the permanent magnet 2101, it can attract and reset the adjusting plate 2107 under the action of the permanent magnet 2101. At this time, the first limiting block 2109 can limit the position of the adjusting plate 2107 to avoid it 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 eventually drip from the bottom of the permanent magnet 2101 as the rotation proceeds.

[0048] like Figures 1-8 As shown, the treatment assembly 21 also includes a connecting box 2114 fixedly connected to the inner wall of the treatment pool 1 and located inside the stainless steel strip 2102. The liquid level in the treatment pool 1 is flush with the bottom surface of the connecting box 2114, and the surface of the connecting box 2114 is provided with a connecting hole that communicates with the outside.

[0049] The top of the treatment tank 1 is fixedly connected to two symmetrically distributed mounting boxes 2115, and a passage area is formed between the two mounting boxes 2115. A stainless steel strip 2102 passes through the mounting box 2115. A scraper 2117 is fixedly connected to the top of the mounting box 2115. The surface of the scraper 2117 is provided with evenly distributed collection grooves 2116. A discharge hole is provided on one side of the mounting box 2115.

[0050] The connection box 2114 is designed so that the dripping foam falls into the interior of the connection box 2114 and is eventually discharged through the connection hole. The liquid level in the treatment tank 1 is flush with the bottom of the connection box 2114, which ensures that wastewater will not enter the interior of the connection box 2114. The foam is located on the outside of the connection box 2114. During the process of the stainless steel belt 2102 moving upward to separate the foam, the shielding of the surface of the connection box 2114 forms a hopper-like lifting method, which ensures the good lifting of the foam. As the adjusting plate 2107 moves and passes through the connection box 2114, since there is no shielding of the connection box 2114, most of the foam can be guided by the unfolded adjusting plate 2107 and the first limiting block 2109 to drip into the interior of the connection box 2114 and be discharged.

[0051] The scraper 2117 is designed to scrape off the oil stains adhering to the surface of the stainless steel strip 2102, while the collection groove 2116 is designed to collect the scraped oil stains and allow them to drip into the interior of the mounting box 2115, and then be discharged separately through the discharge hole on the mounting box 2115.

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

[0053] S1. Wastewater is introduced into treatment tank 1 through inlet pipe 101, and flocculant is added into treatment tank 1.

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

[0055] S3. Start the aeration pipe 102 to aerate the wastewater in the pool. During this process, gas is injected into the interior of the connecting shell 3 and discharged through the jet pipe 301 to push the foam towards the middle of the pool.

[0056] S4. During the start-up of motor 204, the foam generated during the processing can be cleaned by the processing component 21, and the oil in the wastewater can be separated and treated, thus achieving the purpose of multiple treatments.

[0057] S5. After treatment, the wastewater in the pool is discharged through the drain pipe 103.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

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 an inlet pipe (101), and the other side of the treatment tank (1) is connected to a drain pipe (103). The bottom wall of the treatment tank (1) is provided with uniformly distributed aeration pipes (102). The treatment tank (1) is provided with a separation mechanism (2) inside. The separation mechanism (2) is used to separate and treat oil in the wastewater. The inner wall of the treatment tank (1) is fixedly connected with two symmetrically distributed connecting shells (3). The surface of the connecting shells (3) is connected with uniformly distributed jet pipes (301). The separation mechanism (2) includes a mixing component and a treatment component (21). The mixing component is disposed inside the treatment tank (1) and is used to mix the wastewater and flocculant in the treatment tank (1). The treatment component (21) is disposed on the surface of the mixing component and is used to separate the oil. The mixing assembly includes two mounting rods fixedly connected to the top of the treatment tank (1). One of the mounting rods is equipped with a motor (204) on one side. The output shaft of the motor (204) is fixedly connected to a connecting shaft (205). The other end of the connecting shaft (205) passes through the two mounting rods in sequence and is fixedly connected to two transmission mechanisms (201). The other end of the transmission mechanism (201) is fixedly connected to a rotating rod (202). The other end of the rotating rod (202) passes 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). The processing 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 processing pool (1). A guide post (2103) is fixedly connected to the surface of the fixed shaft (2118). A stainless steel strip (2102) is provided on the surface of the permanent magnet (2101). The other end of the stainless steel strip (2102) is sleeved on the surface of the guide post (2103). A number of three sets of spacers (2105) are fixedly connected to the surface of the permanent magnet (2101). There are two spacers (2105) in each set. The surface of the permanent magnet (2101) has three sets of grooves (2104) located between the two spacers (2105). An oleophilic layer is provided on the surface of the stainless steel strip (2102). The stainless steel strip (2102) has uniformly distributed through grooves (2106) on its surface. An adjusting plate (2107) is provided 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). A second limiting block (2110) located on the inner side of the adjusting plate (2107) away from the stainless steel strip (2102) is fixedly connected to the inner wall of the through groove (2106). A first limiting block (2109) symmetrically distributed with the second limiting block (2110) is fixedly connected to the inner wall of the through groove (2106). The inner wall of the through groove (2106) away from the first limiting block (2109) is provided with a guide slope (2108). The guide post (2103) has evenly distributed mounting cavities (2113) inside. A push rod (2111) is slidably connected to the inner wall of the mounting cavity (2113). One end of the push rod (2111) passes through 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 mounting cavity (2113).

2. The lubricating oil production wastewater treatment equipment according to claim 1, characterized in that, The processing assembly (21) also includes a connecting box (2114) fixedly connected to the inner wall of the processing pool (1) and located inside the stainless steel strip (2102). The liquid level in the processing pool (1) is flush with the bottom surface of the connecting box (2114), and the surface of the connecting box (2114) is provided with a connecting hole that communicates with the outside.

3. The lubricating oil production wastewater treatment equipment according to claim 2, characterized in that, The top of the treatment pool (1) is fixedly connected to two symmetrically distributed mounting boxes (2115), and a passage area is formed between the two mounting boxes (2115). The stainless steel strip (2102) passes through the mounting box (2115). The top of the mounting box (2115) is fixedly connected to a scraper (2117). The surface of the scraper (2117) is provided with evenly distributed collection grooves (2116). The mounting box (2115) is provided with a discharge hole on one side.

4. A method for treating lubricating oil production wastewater, comprising a lubricating oil production wastewater treatment device according to any one of claims 1-3, characterized in that, Includes the following methods and steps, S1. Wastewater is introduced into treatment tank (1) through inlet pipe (101), and flocculant is added into treatment tank (1); S2. Starting the motor (204) will drive the rotating rod (202) through the two transmission mechanisms (201) under the action of the connecting shaft (205) to rotate the stirring rod (203) so as to achieve the mixing of wastewater and flocculant in the treatment tank (1); S3. Start the aeration pipe (102) to aerate the wastewater in the pool. During this process, gas is injected into the interior of the connecting shell (3) and discharged through the jet pipe (301) to push the foam to the middle of the pool. S4. During the start-up of the motor (204), the foam generated during the processing can be cleaned by the processing component (21), and the oil in the wastewater can be separated and treated, thus achieving the purpose of multiple treatments. S5. After the treatment is completed, the wastewater in the pool is discharged through the drain pipe (103).

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