A lubricating oil production exhaust gas treatment device

Abstract

The present application relates to atmospheric pollution equipment technical field, specifically, it relates to a kind of lubricating oil production waste gas treatment device, comprising: waste gas import connection pipe, flange, separator and purifier, the flange is installed in the end of the waste gas import connection pipe, the separator is communicated with the outlet of the waste gas import connection pipe, the purifier is connected with the separator, the waste gas import connection pipe is divided into two sections, spiral connection between two sections, the waste gas import connection pipe transports waste gas into the separator, the separator removes oil mist in waste gas, waste gas is recycled fine purification after entering the purifier, waste gas is thoroughly treated, ensure that volatile organic compounds and foul-smelling inorganic gas are treated clean, with the way of the lubricating oil production waste gas with complex characteristics is extremely strong targeted to carry out step-by-step depth comprehensive treatment, ensure long-term stable treatment effect to waste gas, to change clean gas exhaust into waste gas.

Description

Technical Field

[0001] This invention relates to the field of air pollution control equipment technology, and more specifically, to a lubricating oil production waste gas treatment device. Background Technology

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and machinery to reduce friction and protect mechanical and processed parts. Its main functions include lubrication, auxiliary cooling, rust prevention, cleaning, sealing, and buffering. Any product used between two relatively moving objects to reduce friction and wear caused by contact is considered lubricating oil. Lubricating oil is a technology-intensive product, a complex mixture of hydrocarbons, and its actual performance is a result of the combined effects of complex physical and chemical processes. Lubricating oil generally consists of two parts: base oil and additives. Base oil is the main component of lubricating oil, determining its basic properties, while additives compensate for and improve the shortcomings of the base oil, imparting certain new properties, and are an important component of lubricating oil.

[0003] Lubricating oil plays an important role in industrial production and machinery operation. During the production process of lubricating oil, the heating, reaction, distillation and other processes of raw materials may generate a certain amount of waste gas. The components of these waste gases include: volatile organic compounds; liquid oil mist particles; malodorous inorganic gases such as hydrogen sulfide and ammonia. Moreover, the volume and concentration of waste gas fluctuate greatly. Direct emission will have a significant impact on the environment and human health, and effective treatment is necessary.

[0004] A waste gas treatment device for lubricating oil production, with announcement number CN 217119658 U, involves a spray shell that sprays water through through-holes in a diverter plate, causing the water to flow into the inner cavity of the mounting shell. This effectively removes fine particles from the waste gas, causing them to settle on the upper surface of a filter plate. The waste gas then enters the upper part of the inner cavity of the mounting shell through the through-holes, is filtered by the air filter plate, and is discharged outside the equipment through the exhaust channel. A servo motor drives a scraper to rotate, scraping away the fine particles adhering to the inner wall of the mounting shell, causing them to settle on the upper surface of the filter plate. Simultaneously, the scraper moves circumferentially, and under the action of the main and driven bevel gears, the screw rod rotates while moving circumferentially, carrying the fine particles on the upper surface of the filter plate to the outer side. The scraper then moves the fine particles to the discharge channel for removal. This device offers high waste gas treatment efficiency and avoids the need for disassembly and cleaning of the inner wall of the equipment, thus improving waste gas treatment efficiency. The patented solution addresses the issue of low efficiency by using copper heat dissipation pipes to absorb and transfer heat from the exhaust gas to the heat-absorbing medium. A high-pressure water pump then pumps the heat-absorbing medium into the return water pipe, where a heat storage tank stores the heat from the medium, facilitating energy recovery. The stored heat can also preheat the lubricating oil during heating and stirring. However, this patented solution focuses on resolving the problem of small particles easily adhering to the inner wall of the equipment, requiring disassembly and cleaning—a time-consuming and labor-intensive process—and the recovery of waste heat from the exhaust gas. For the treatment of production exhaust gas, water is sprayed to force the small particles to settle, and the exhaust gas is then filtered through an air filter before being naturally discharged, thus separating the small particles. This conventional treatment method is very limited in its effectiveness for low-concentration but high-volume and complex lubricating oil production exhaust gas, and it is difficult to achieve long-term, stable treatment results. Summary of the Invention

[0005] The purpose of this invention is to provide a lubricating oil production waste gas treatment device to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides a lubricating oil production waste gas treatment device, comprising: a waste gas inlet pipe, a flange, a separator, and a purifier, wherein the flange is installed at the end of the waste gas inlet pipe, the separator is connected to the outlet of the waste gas inlet pipe, and the purifier is connected to the separator. The exhaust gas inlet pipe is divided into two sections, which are connected by a spiral. The exhaust gas inlet pipe delivers the exhaust gas into the separator, which removes oil mist from the exhaust gas. The exhaust gas then enters the purifier where it is circulated and finely purified.

[0007] Furthermore, the separator includes: The pipe body is connected to the exhaust gas inlet pipe and is perpendicular to the exhaust gas inlet pipe; A baffle plate, which is installed on the inner top wall of the tube and extends downward; A collecting dish is inserted into the tube body and attached to the bottom of the baffle plate, with the handle of the collecting dish protruding from the tube body; The baffle plate faces the outlet of the exhaust gas inlet pipe.

[0008] Furthermore, an outer ring is spirally installed on the side wall of the tube, and a sponge sheet is installed inside the outer ring. The handle of the collecting dish passes through the sponge sheet. When the collecting dish is pulled out, the collecting dish squeezes and expands the sponge sheet. The edge portion of the sponge sheet is fitted inside the outer ring sleeve.

[0009] Furthermore, the tube body is cut off, and bearings are installed on both ends of the cut-off tube body. An expansion sleeve is installed on the outer ring of the two bearings. The expansion sleeve fills the cut-off part of the tube body. Several positioning hoops are installed inside the expansion sleeve. Several flow-blocking rods are installed on the inner circumference of the positioning hoops. An integral annular storage dish is provided at the lower end of the expansion sleeve. The opening end of the annular storage dish extends obliquely upward to the inside of the expansion sleeve and is flush with its inner wall. A belt is embedded and sleeved at the upper end of the expansion sleeve. The other side of the belt is installed on a pulley. The pulley is fixed on a pulley frame and driven by a motor. The diameter of the positioning clamp is larger than the diameter of the tube body.

[0010] Furthermore, a flexible tube is spirally attached to the outer wall of the expanded diameter sleeve, the positioning clamp is hollow, and the flexible tube is connected to the positioning clamp; The hose is connected to an external hot or cold air source, and the hose is wound up on an automatic take-up reel.

[0011] Furthermore, the purifier includes: A diverter is connected to the outlet end of the pipe body. The diameter of the diverter is larger than the diameter of the pipe body, and the bottom of the diverter is a densely arranged porous structure. A mesh drain tube, wherein several mesh drain tubes are respectively spirally installed in the holes at the bottom of the diverter, and the mesh drain tubes are filled with activated carbon.

[0012] Furthermore, the purifier also includes: Tank No. 1 is installed on the diversion connector, and the diversion connector is connected to Tank No. 1; A valve, one end of which is installed on the No. 1 tank body; Tank No. 2, the top of which is connected to the other end of the valve, and the bottom of Tank No. 2 is conical; A closed pipe head is provided, which is connected to the lower port of the No. 2 tank. A mesh box is installed at the lower port of the second tank and fits into the inside of the closed tube head; the mesh box is filled with activated carbon. A shaft, which is rotatably inserted into the closed tube head, is driven by a motor; Fan blades, the fan blades being mounted on one end of the shaft that is inserted into the closed tube head; A one-way air valve is installed at the bottom of the closed tube head; A three-way valve, wherein the three-way valve is connected to the air circuit check valve; A return pipe is connected to one outlet of the three-way valve; A carbon box is installed on the upper part of the second tank and is connected to the second tank. The reflux pipe is connected to the carbon box, and the carbon box is filled with activated carbon packets.

[0013] Furthermore, several of the positioning clamps are arranged vertically inside the expanded diameter sleeve, and the flow-blocking rods on the positioning clamps are arranged in a staggered manner.

[0014] Furthermore, the periphery of the baffle rod is provided with densely packed long grooves.

[0015] Furthermore, the side of the baffle plate facing the exhaust gas inlet pipe has a mesh-like perforation.

[0016] Compared to existing technologies, this invention has the following advantages: The segmented design of the exhaust gas inlet pipe allows the exhaust gas treatment device to be disconnected or the inlet pipe removed for periodic cleaning without disassembling any other components, facilitating regular maintenance and temporary repairs during long-term use. Throughout the exhaust gas flow process, the separator effectively captures and separates oil mist particles twice, removing the oil mist and achieving preliminary treatment of the exhaust gas. The purifier further reduces the flow of the exhaust gas as it continues to flow. The large volume of waste gas is diverted into fine air columns, thereby transforming the large volume of waste gas into multiple fine airflows for individual purification. This ensures refined treatment of the waste gas and allows for batch-by-batch recirculation, ensuring continuous purification and significantly extending the treatment time. This thorough treatment ensures the complete removal of volatile organic compounds and malodorous inorganic gases. This highly targeted approach to the complex characteristics of lubricating oil production waste gas provides step-by-step, deep, and comprehensive treatment, ensuring long-term and stable treatment results and transforming the waste gas into clean gas for discharge. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 A perspective view of the present invention is shown; Figure 2 A second perspective view of the present invention is shown; Figure 3 A third perspective view of the present invention is shown; Figure 4 A fourth perspective view of the present invention is shown; Figure 5 A fifth perspective view of the present invention is shown; Figure 6 A sixth perspective view of the present invention is shown; Figure 7 The present invention is shown. Figure 1 Enlarged view of point A; Figure 8 The present invention is shown. Figure 1 Enlarged view of point B; Figure 9 The present invention is shown. Figure 2 Enlarged view of point C; Figure 10 The present invention is shown. Figure 3 Enlarged view of point D; Figure 11 The present invention is shown. Figure 3 Enlarged view of point E; Figure 12 The present invention is shown. Figure 3 Enlarged view at point F; Figure 13 The present invention is shown. Figure 3 Enlarged view of point G; Figure 14 The present invention is shown. Figure 4 Enlarged view of point H; Figure 15 The present invention is shown. Figure 5 Enlarged view of point I; Figure 16 The present invention is shown. Figure 6 Enlarged view of point J.

[0019] In the figure, the same reference numerals represent the same structural element, wherein: 1. Exhaust gas inlet pipe; 2. Flange; 3. Separator; 31. Pipe body; 32. Baffle plate; 33. Collection dish; 34. Outer ring sleeve; 35. Sponge sheet; 36. Bearing; 37. Expanded diameter sleeve; 38. Positioning clamp; 39. Baffle rod; 391. Annular storage dish; 392. Belt; 393. Pulley; 394. Pulley frame; 395. Hose; 4. Purifier; 41. Diverter; 42. Mesh drain pipe; 43. Tank No. 1; 44. Valve; 45. Tank No. 2; 46. Sealed pipe head; 47. Mesh box; 48. Shaft; 49. Fan blade; 491. Gas circuit check valve; 492. Three-way valve; 493. Return pipe; 494. Carbon box. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0021] like Figures 1-16 As shown, a lubricating oil production waste gas treatment device includes: a waste gas inlet pipe 1, a flange 2, a separator 3, and a purifier 4. The flange 2 is installed at the end of the waste gas inlet pipe 1, the separator 3 is connected to the outlet of the waste gas inlet pipe 1, and the purifier 4 is connected to the separator 3. The exhaust gas inlet pipe is divided into two sections, which are connected by a spiral. The exhaust gas inlet pipe 1 delivers exhaust gas into the separator 3, which removes oil mist from the exhaust gas. The exhaust gas then enters the purifier 4 for further purification. The exhaust gas inlet pipe 1 is connected to the main exhaust gas collection pipe in the production workshop, allowing the exhaust gas to be continuously delivered. The flange 2 connects the exhaust gas inlet pipe 1 to the main exhaust gas collection pipe in the production workshop. Loosening the flange 2 allows the section of the exhaust gas inlet pipe 1 with the flange 2 to be rotated, thus removing the exhaust gas inlet pipe 1. The segmented design of the exhaust gas inlet pipe 1 allows for the disconnection of the exhaust gas treatment device or its removal for periodic cleaning without disassembling any other components, facilitating regular maintenance and temporary repairs during long-term use. The entire process of leading the exhaust gas outwards... During the process, separator 3 can capture and separate oil mist particles in the exhaust gas twice, thereby removing the oil mist from the exhaust gas and achieving preliminary treatment of the exhaust gas. Purifier 4 diverts the large volume of exhaust gas into fine air columns as the exhaust gas continues to flow, thereby converting the large volume of exhaust gas into multiple fine airflows for individual targeted purification, ensuring fine treatment of the exhaust gas, and circulating the exhaust gas in batches, so that the exhaust gas is continuously purified, greatly extending the treatment time of the exhaust gas, performing thorough treatment of the exhaust gas, ensuring that volatile organic compounds and malodorous inorganic gases are cleaned up, and performing step-by-step deep and comprehensive treatment in a highly targeted manner for the complex characteristics of lubricating oil production exhaust gas, ensuring long-term and stable treatment effect of the exhaust gas, so as to turn the exhaust gas into clean gas for discharge.

[0022] Optionally, separator 3 includes: Pipe body 31 is connected to exhaust gas inlet pipe 1 and is perpendicular to exhaust gas inlet pipe 1; Baffle 32 is installed on the inner top wall of the tube body 31 and extends downward; The collecting dish 33 enters the tube body 31 and is inserted into the bottom of the baffle plate 32. The handle of the collecting dish 33 protrudes outside the tube body 31. The baffle plate 32 faces the outlet of the exhaust gas inlet pipe 1. Because the bent baffle plate 32 blocks the outlet of the exhaust gas inlet pipe 1, the exhaust gas is forced to make a sharp turn when it flows out of the exhaust gas inlet pipe 1. The airflow is forced to change direction rapidly. During this process, larger oil mist particles in the exhaust gas, such as oil droplets larger than ten micrometers, cannot change direction with the airflow due to their large inertia. They will directly collide with the baffle plate 32, directly intercepting the oil mist and any liquid droplets carried by chance in the exhaust gas, thereby achieving the capture and separation of oil mist. The oil mist particles on the baffle plate 32 continuously accumulate to form liquid. Under the action of gravity, they will flow down along the baffle plate 32 and naturally flow into the collection dish 33. The collection dish 33 is periodically removed to clean the collected oil.

[0023] Optionally, an outer ring sleeve 34 is spirally installed on the side wall of the tube body 31, and a sponge sheet 35 is installed inside the outer ring sleeve 34. The handle of the collecting dish 33 is inserted through the sponge sheet 35. When the collecting dish 33 is pulled out, the collecting dish 33 squeezes and expands the sponge sheet 35. The edge of the sponge 35 is fitted into the outer ring 34. Each time the collection dish 33 is removed, the collection dish 33 must squeeze the sponge 35 to open it before it can be removed. Therefore, the sponge 35 can wipe the collection dish 33. The sponge 35 absorbs the liquid formed on the surface of the collection dish 33 due to the continuous impact of oil mist, and even the oil overflowing from the collection dish 33 when it is full. This prevents the inner wall of the tube 31 from scraping off the oil when the collection dish 33 is pulled out, which would cause contamination of the tube 31 and thus affect the subsequent cleaning burden and treatment effect.

[0024] Optionally, the pipe body 31 is cut off, and bearings 36 are installed on both ends of the cut-off pipe body 31. An expansion sleeve 37 is installed on the outer ring of the two bearings 36. The expansion sleeve 37 fills the cut-off part of the pipe body 31. Several positioning hoops 38 are installed inside the expansion sleeve 37. Several flow-blocking rods 39 are installed on the inner circumference of the positioning hoops 38. An integral annular storage dish 391 is provided at the lower end of the expansion sleeve 37. The open end of the annular storage dish 391 extends obliquely upward to the inside of the expansion sleeve 37 and is flush with its inner wall. A belt 392 is embedded in the upper end of the expansion sleeve 37. The other side of the belt 392 is installed on the pulley 393. The pulley 393 is fixed on the pulley frame 394 and driven by a motor. The diameter of the positioning clamp 38 is larger than the diameter of the pipe body 31. The baffle 32 changes the flow direction of the exhaust gas, causing it to flow downwards within the pipe body 31. Along the flow path of the exhaust gas, a dense array of baffles 39 again form an obstruction. Residual oil mist particles in the exhaust gas collide with the baffles 39, achieving further capture and separation of the oil mist. This strengthens the direct interception method, removing the oil mist and ensuring treatment effectiveness. Firstly, the oil mist in the exhaust gas is treated, effectively reducing the humidity and the content of attached particles, preventing the purifier 4 from being quickly clogged and blocked. This ensures the orderly distribution of exhaust gas treatment, and appropriate treatment methods are developed for different components in the exhaust gas to avoid… The system interacts with each other to treat the exhaust gas in a highly targeted manner, ensuring a long-term and stable treatment effect and maximizing the treatment efficiency. The motor is started periodically or flexibly, driving the pulley 393 and the belt 392 to rotate the expansion sleeve 37. The centrifugal force generated by the rotation throws the oil mist attached to the baffle rod 39 onto the inner wall of the expansion sleeve 37. The oil mist then gathers and flows along the inner wall of the expansion sleeve 37, eventually flowing into the annular storage dish 391. The baffle rod 39 is cleaned regularly to prevent too much oil mist from adhering to it, which would affect the oil mist capture effect and ensure a long-term and stable treatment effect on the exhaust gas.

[0025] Optionally, a flexible hose 395 is spirally attached to the outer wall of the expanded diameter sleeve 37, and the positioning clamp 38 is hollow, with the flexible hose 395 connected to the positioning clamp 38; The hose 395 is connected to an external hot or cold air source. During normal exhaust gas treatment, the external hot or cold air source continuously supplies low-temperature air, which continuously controls the temperature of the positioning clamp 38, keeping it at a low level. This, in turn, controls the temperature of all the baffles 39, ensuring that their temperature is always lower than the exhaust gas temperature. This allows the baffles 39 to actively capture more oil mist or promote the active condensation of oil mist using their low temperature, ensuring a deep treatment effect and thorough removal of oil mist. When it is time to clean the baffles 39, the external hot or cold air source is switched. This changes the supply of gas from low temperature to high temperature, thereby increasing the temperature of the positioning clamp 38 and all the baffle rods 39. This dissolves any condensed oil mist and improves the fluidity of the liquid. As a result, when using centrifugal force to clean the oil mist adhering to the baffle rods 39, the oil mist can be removed as much as possible, improving the cleaning effect on the baffle rods 39. The hose 395 is wound on the automatic take-up reel. When the expansion sleeve 37 rotates, the hose 395 can be pulled open synchronously with the rotation of the expansion sleeve 37, ensuring that it does not hinder the rotation of the expansion sleeve 37 or the cleaning of the baffle rods 39.

[0026] Optional, purifier 4 includes: Diverter 41 is connected to the outlet end of pipe body 31. The diameter of diverter 41 is larger than the diameter of pipe body 31. The bottom of diverter 41 is densely arranged in a porous shape. Several mesh-like leakage pipes 42 are spirally installed at the holes at the bottom of the diverter 41. The mesh-like leakage pipes 42 are filled with activated carbon. After the exhaust gas enters the diverter 41 through the outlet of the pipe body 31, due to the restriction of the diverter 41, the exhaust gas can only flow out in a queue from the holes at the bottom of the diverter 41, thereby converting the large volume of exhaust gas into multiple fine airflow columns. After these airflow columns are blown out, they directly enter the corresponding mesh-like leakage pipes 42 and flow through the activated carbon in the mesh-like leakage pipes 42. In this process, the activated carbon adsorbs and treats the volatile organic compounds and malodorous inorganic gases in the exhaust gas, so that each airflow can be passively purified individually, avoiding the situation of incomplete treatment when the exhaust gas flows in large volume, and ensuring that the exhaust gas is finely purified.

[0027] Optionally, the purifier 4 also includes: Tank No. 1 43 is installed on the diversion connector 41, and the diversion connector 41 is connected to Tank No. 1 43. Valve 44, one end of valve 44 is installed on tank body 43; Tank No. 2 45, the top of Tank No. 2 45 is connected to the other end of valve 44, and the bottom of Tank No. 2 45 is conical; The closed pipe head 46 is connected to the lower port of the second tank body 45; The mesh box 47 is installed at the lower port of the second tank 45 and is attached to the inside of the closed tube head 46. The mesh box 47 is filled with activated carbon. Shaft 48 is rotatably inserted into closed tube head 46, and shaft 48 is driven by a motor. Fan blade 49 is installed on one end of shaft 48 that is inserted into closed tube head 46; Gas circuit check valve 491, gas circuit check valve 491 is installed at the bottom of the closed pipe head 46; Three-way valve 492 is connected to air circuit check valve 491; Return pipe 493 is connected to one outlet of three-way valve 492; Carbon box 494 is installed on the upper part of tank 45 and is connected to it. Return pipe 493 is connected to carbon box 494, which is filled with activated carbon packets. Tank 43 continuously stores waste gas. After a certain amount is stored, valve 44 is opened to discharge the waste gas into tank 45. After a certain amount is discharged, valve 44 is closed. The continuously discharged waste gas is then temporarily stored in tank 43, and enters tank 45. Simultaneously, the motor starts, driving the fan blades 49 to rotate via the shaft 48, thereby creating a negative pressure within the closed pipe head 46. This draws the exhaust gas from the second tank 45 through the mesh box 47. The fan blades 49 simultaneously draw in the exhaust gas and blow it out. The blown exhaust gas enters the three-way valve 492 via the one-way valve 491 and is discharged into the carbon box 494 through the return pipe 493, returning to the second tank 45. During this process, the exhaust gas is drawn in through the mesh box 47... When the pipe head 46 is closed, the gas is purified as it flows through the activated carbon filled in the mesh box 47. The activated carbon adsorbs the volatile organic compounds and malodorous inorganic gases in the waste gas. When the waste gas flows back into the second tank 45 and through the carbon box 494, it is purified again by the activated carbon pack inside. In addition, the fan blade 49 draws the waste gas out from the bottom of the second tank 45, while the waste gas flows back in from the top of the second tank 45. This constitutes a circulation of the waste gas, which continuously circulates and purifies the waste gas in batches. This greatly extends the treatment time of the waste gas while ensuring the comprehensiveness and thoroughness of the treatment, preventing any untreated parts. It ensures that the volatile organic compounds and malodorous inorganic gases are cleaned up and the waste gas is discharged as clean gas. After the waste gas has been fully treated, the passage of the three-way valve 492 is adjusted to interrupt the return pipe 493, and the clean gas is discharged from the other outlet of the three-way valve 492.

[0028] Optionally, several positioning clamps 38 are arranged vertically inside the expansion sleeve 37, and the baffle rods 39 on the positioning clamps 38 are arranged in a staggered manner. The staggered baffle rods 39 form a three-dimensional and tight treatment defense line inside the expansion sleeve 37, which avoids gaps without reducing the exhaust gas flow rate or affecting the treatment efficiency, and further ensures that the oil mist can be completely removed.

[0029] Optionally, the baffle bar 39 is provided with a dense array of long grooves on its periphery. The numerous long grooves help to better capture oil mist and increase the area that can be adhered to, thereby improving the effect and throughput of oil mist removal and ensuring the treatment effect. Furthermore, when using centrifugal force to clean the oil mist on the baffle bar 39, the oil mist flows along the long grooves and is thrown away, which can better clean the baffle bar 39, achieving multiple benefits in one fell swoop.

[0030] Optionally, the side of the baffle plate 32 facing the exhaust gas inlet pipe 1 is perforated with a mesh, which greatly increases the surface area and unevenness of this side of the baffle plate 32, thereby improving the interception effect of oil mist and better completing the capture and separation of oil mist.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for treating exhaust gas from lubricating oil production, characterized in that, include: The exhaust gas inlet pipe (1), flange (2), separator (3) and purifier (4) are provided. The flange (2) is installed at the end of the exhaust gas inlet pipe (1). The separator (3) is connected to the outlet of the exhaust gas inlet pipe (1). The purifier (4) is connected to the separator (3). The exhaust gas inlet pipe (1) is divided into two sections, which are spirally connected. The exhaust gas inlet pipe (1) delivers the exhaust gas into the separator (3), the separator (3) removes the oil mist from the exhaust gas, and the exhaust gas is then circulated and finely purified after entering the purifier (4).

2. The lubricating oil production waste gas treatment device as described in claim 1, characterized in that, The separator (3) includes: Pipe body (31), the pipe body (31) is connected to the exhaust gas inlet pipe (1), and the pipe body (31) is perpendicular to the exhaust gas inlet pipe (1). Baffle (32), which is installed on the inner top wall of the tube body (31) and extends downward; A collecting dish (33) is inserted into the tube body (31) and attached to the bottom of the baffle plate (32). The handle of the collecting dish (33) protrudes outside the tube body (31). The baffle plate (32) faces the outlet of the exhaust gas inlet pipe (1).

3. The lubricating oil production waste gas treatment device as described in claim 2, characterized in that: An outer ring sleeve (34) is spirally installed on the side wall of the tube body (31). A sponge sheet (35) is installed inside the outer ring sleeve (34). The handle of the collecting dish (33) passes through the sponge sheet (35). When the collecting dish (33) is pulled out, the collecting dish (33) squeezes and expands the sponge sheet (35). The edge portion of the sponge sheet (35) is fitted inside the outer ring sleeve (34).

4. The lubricating oil production waste gas treatment device as described in claim 3, characterized in that: The tube body (31) is cut off, and bearings (36) are installed on both ends of the cut-off tube body (31). An expansion sleeve (37) is installed on the outer ring of the two bearings (36). The expansion sleeve (37) fills the cut-off part of the tube body (31). Several positioning hoops (38) are installed inside the expansion sleeve (37). Several baffle rods (39) are installed on the inner circumference of the positioning hoops (38). An integral annular storage dish (391) is provided at the lower end of the expansion sleeve (37). The opening end of the annular storage dish (391) extends obliquely upward to the inside of the expansion sleeve (37) and is flush with its inner wall. A belt (392) is embedded in the upper end of the expansion sleeve (37). The other side of the belt (392) is installed on the pulley (393). The pulley (393) is fixed on the pulley frame (394) and driven by a motor. The diameter of the positioning clamp (38) is larger than the diameter of the tube body (31).

5. The lubricating oil production waste gas treatment device as described in claim 4, characterized in that: A flexible tube (395) is spirally attached to the outer wall of the expanded diameter sleeve (37), the positioning clamp (38) is hollow, and the flexible tube (395) is connected to the positioning clamp (38). The hose (395) is connected to an external hot or cold air source, and the hose (395) is wound up on an automatic take-up reel.

6. The lubricating oil production waste gas treatment device as described in claim 5, characterized in that, The purifier (4) includes: Diverter (41), the diverter (41) is connected to the outlet end of the pipe body (31), the diameter of the diverter (41) is larger than the diameter of the pipe body (31), and the bottom of the diverter (41) is densely arranged in a porous shape. Mesh drain pipes (42), several of the mesh drain pipes (42) are spirally installed at the holes on the bottom of the diverter (41), and the mesh drain pipes (42) are filled with activated carbon.

7. The lubricating oil production waste gas treatment device as described in claim 6, characterized in that, The purifier (4) also includes: Tank No. 1 (43) is installed on the diversion connector (41) and the diversion connector (41) is connected to the tank No. 1 (43). Valve (44), one end of which is installed on the No. 1 tank body (43); Tank No. 2 (45), the top of which is connected to the other end of the valve (44), and the bottom of the tank No. 2 (45) is conical; A closed pipe head (46) is connected to the lower port of the second tank (45); The mesh box (47) is installed at the lower port of the second tank (45) and fits into the inside of the closed tube head (46). The mesh box (47) is filled with activated carbon. A shaft (48) is rotatably inserted into the closed tube head (46), and the shaft (48) is driven by a motor; Fan blade (49), the fan blade (49) is mounted on one end of the shaft (48) that is inserted into the closed tube head (46); A gas-line check valve (491) is installed at the bottom of the closed tube head (46); Three-way valve (492), the three-way valve (492) is connected to the air circuit check valve (491); A return pipe (493) is connected to one outlet of the three-way valve (492); A carbon box (494) is installed on the upper part of the second tank (45) and is connected to the second tank (45). The return pipe (493) is connected to the carbon box (494) and the carbon box (494) is filled with activated carbon packets.

8. The lubricating oil production waste gas treatment device as described in claim 7, characterized in that: Several positioning hoops (38) are arranged vertically inside the expanded diameter sleeve (37), and the flow-blocking rods (39) on the several positioning hoops (38) are arranged in a staggered manner.

9. The lubricating oil production waste gas treatment device as described in claim 8, characterized in that: The flow deflector (39) has densely packed long grooves on its periphery.

10. The lubricating oil production waste gas treatment device as described in claim 9, characterized in that: The baffle plate (32) has a mesh-like perforation on the side facing the exhaust gas inlet pipe (1).

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