Gantry machine tool oil mist recycling and cleaning device

Abstract

The invention relates to the technical field of gantry machine tools, and discloses a gantry machine tool oil mist recycling and cleaning device which comprises a first-stage recycling mechanism, a second-stage recycling mechanism and a connecting pipeline arranged between the first-stage recycling mechanism and the second-stage recycling mechanism. An air blower is arranged at an upper pipe opening of the inner pipeline, the inner pipeline comprises an upper mounting section, a middle connecting section and a lower air outlet section which are coaxial and unequal in diameter, the middle connecting section is in a circular truncated cone shape with the diameter gradually increased from bottom to top, a water pipe is arranged on the upper mounting section, and one end of the water pipe extends into the upper mounting section and is provided with a spray head; the tail end of the mouthpiece is connected with an input pipeline; according to the scheme, oil mist generated by the gantry machine tool can be effectively recycled and purified, so that pollution of the oil mist to the environment is reduced, the concentration of particulate matter in air is reduced, the working environment of a production workshop is improved, and meanwhile, the production cost is saved by collecting and reusing the oil mist.

Description

Technical Field

[0001] The invention relates to the technical field of gantry machine tools, and in particular to an oil mist recovery and cleaning device for gantry machine tools. Background Art

[0002] Gantry machine tools refer to machine tools whose working table reciprocates between two columns. Gantry machine tools will produce oil mist during the processing, which will pollute the surrounding workshop working environment. Therefore, it is necessary to recycle and treat the oil mist in and out.

[0003] Based on the search for machine tool oil mist recovery, a Chinese utility model patent was found, and its authorization announcement number is CN220007000U, which discloses a gantry machine tool oil mist recovery device, which uses an air pump to draw the oil mist into the recovery box, and sprays the cleaning liquid through the nozzle to liquefy the oil mist and drop it on the filter plate to achieve the recovery of the oil mist. However, it still has some shortcomings and needs to be improved. For example, the way of drawing the oil mist by the air pump is easy to cause the internal structure of the air pump to be stained with oil mist, which can easily cause the air pump to operate abnormally over time; an additional swing mechanism is required to drive the nozzle to spray in a fan shape so that the oil mist and the cleaning liquid are fully in contact, which needs to be improved; the amount of oil mist generated during the machine tool processing is uncontrollable, so the amount of oil mist entering the recovery box is uncontrollable, and the cleaning liquid sprayed by the nozzle is quantitative, so it is easy to have excessive spraying or insufficient spraying. The former has a waste of cleaning liquid, and the latter has an incomplete recovery of oil mist.

[0004] Based on the above, the present invention proposes an oil mist recovery and cleaning device for a gantry machine tool. Summary of the invention

[0005] In order to solve the problems mentioned in the above background, the present invention provides an oil mist recovery and cleaning device for a gantry machine tool.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0007] An oil mist recovery and cleaning device for a gantry machine tool comprises a primary recovery and processing mechanism and a secondary recovery and processing mechanism and a connecting pipe arranged therebetween, wherein the primary recovery and processing mechanism comprises an inner pipe and an outer sleeve arranged outside the inner pipe; A blower is arranged at the upper pipe opening of the inner pipe. The inner pipe is divided into a coaxial upper installation section, a middle connecting section and a lower air outlet section with unequal diameters along the axial direction. The upper installation section and the lower air outlet section are both cylindrical, and the middle connecting section is in the shape of a truncated cone with a diameter increasing from bottom to top. A water pipe is arranged on the upper installation section, one end of which is connected to a water source, and the other end extends into the upper installation section and is provided with a plurality of nozzles. A nozzle is arranged on the outer circumferential surface of the outer sleeve, and the end of the nozzle is connected to an input pipe, and the end of the input pipe is used to receive oil mist.

[0008] As a further improvement and optimization of the present invention, a propeller blade is arranged in the lower pipe opening of the lower air outlet section, and a plurality of propeller blades are arranged in an array along the circumferential direction of the lower air outlet section. The airflow output through the lower air outlet section is guided by the propeller blades and then output downward in a spiral state.

[0009] As a further improvement and optimization of the present invention, the bottom of the outer sleeve is connected to an output pipe, the bottom of the output pipe is provided with an outer cover shell, the bottom of the outer cover shell is provided with a bottom pipe, a liquid storage tank is provided below the bottom pipe, the bottom of the bottom pipe extends into the liquid storage tank and is close to the bottom of the tank, a side nozzle is provided on the outer circular surface of the bottom pipe, the side nozzle is connected to the connecting pipe, and a plurality of enrichment components are arranged in an array along the vertical direction in the outer cover shell.

[0010] As a further improvement and optimization of the present invention, a lug is provided on the outer surface of the liquid storage tank, and a drain valve is provided on the lug.

[0011] As a further improvement and optimization of the present invention, the enrichment unit includes an upper fan blade and a lower fan blade arranged in the outer cover shell, the upper fan blade is provided with an upper avoidance channel for airflow, the upper avoidance channel is close to the cavity wall of the outer cover shell, the lower fan blade is provided with a lower avoidance channel for airflow, the lower avoidance channel is close to the axis of the outer cover shell, the lower fan blade also includes an annular groove, the annular groove is coaxially connected to the cavity wall of the outer cover shell, the groove bottom of the annular groove is provided with a bent pipe, and the end of the bent pipe extends out of the outer cover shell; The ends of the bent pipes of the multiple enrichment units are connected through a liquid discharge pipe, and the liquid discharge pipe is connected to the liquid storage tank.

[0012] As a further improvement and optimization of the present invention, an auxiliary pipe is provided on the liquid storage tank, and the lower pipe opening of the auxiliary pipe is close to the bottom of the liquid storage tank.

[0013] As a further improvement and optimization of the present invention, a first filter element is provided at the air inlet end of the blower, a plurality of water pipes are arranged in an array along the circumferential direction of the upper mounting section, a plurality of nozzles are arranged in an array along the circumferential direction of the outer sleeve, and a plurality of input pipes are arranged correspondingly.

[0014] As a further improvement and optimization of the present invention, the secondary recovery and processing mechanism includes a mounting shell, an upper surface of the mounting shell is provided with an exhaust hole and an air inlet hole, the air inlet hole is connected to the connecting pipe, a second filter element is arranged at the upper opening of the exhaust hole, a drain port is arranged at the bottom of the cavity of the mounting shell, and a recovery unit is arranged inside the mounting shell.

[0015] As a further improvement and optimization of the present invention, the recovery unit includes an inner bracket, a synchronous belt group is arranged on the inner bracket, the synchronous belt group includes two pulleys with vertically arranged axis lines and made of insulating material, and a synchronous belt arranged between the two pulleys and made of conductive material, and a motor driving the synchronous belt group to run is arranged on the outer surface of the mounting shell; The moving direction of the synchronous belt group is parallel to the length direction of the installation shell. Two synchronous belt groups are arranged along the width direction of the installation shell, and a discharge electrode is arranged between the two synchronous belt groups.

[0016] As a further improvement and optimization of the present invention, a scraper is arranged in the mounting shell, two scrapers are provided and are respectively located on the opposite sides of the two synchronous belt groups, the scrapers are arranged at an angle and fit with the synchronous belts, the scrapers are made of insulating material, the distance between the scraper and the bottom of the mounting shell decreases along the movement direction of the synchronous belt group, and the drain port is located below the scraper and close to the lowest point of the scraper.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This solution can effectively recover and purify the oil mist generated by the gantry machine tool, thereby reducing the pollution of the oil mist to the environment, reducing the concentration of particulate matter in the air, and improving the working environment of the production workshop. At the same time, by collecting and reusing the oil mist, production costs can be saved. On this basis: 1. When this scheme pulls the oil mist: the airflow formed by the start-up of the blower flows from top to bottom in the inner pipe. Since the diameter of the lower pipe opening of the inner pipe is smaller than the diameter of the upper pipe opening, the flow rate of the airflow output through the lower pipe opening of the inner pipe is faster. Based on the Bernoulli principle, a negative pressure is formed near the lower pipe opening of the inner pipe. The negative pressure can suck the oil mist. The oil mist enters the outer sleeve through the input pipe and the nozzle, and merges into the airflow and flows with the airflow. The advantages are: on the one hand, it can prevent the oil mist from sticking to the blower. On the other hand, if the amount of oil mist generated during the gantry machine tool processing is small, then if the density of the air near the input pipe is relatively small, the weight is relatively small, and the oil mist gas drawn into the outer sleeve under the traction of negative pressure The flow rate is relatively fast. If the amount of oil mist generated is large, the density of the air near the input pipe is relatively large, and the weight is relatively large. Under the negative pressure traction, the flow rate of the oil mist gas drawn into the outer sleeve is relatively slow. In other words, this method of negative pressure traction of oil mist gas based on the Bernoulli principle can adapt to the amount of oil mist generated by the gantry machine tool processing, and solves the problem mentioned in the background technology that "the amount of oil mist generated during the machine tool processing is uncontrollable, so the amount of oil mist entering the recovery box is uncontrollable, and the cleaning liquid sprayed by the nozzle is quantitative, so it is easy to spray too much or too little. The former results in a waste of cleaning liquid, and the latter results in incomplete oil mist recovery and treatment." 2. When the airflow is output through the lower pipe outlet of the inner pipe, the propeller blades can make the airflow flow downward in a spiral state. The advantage is that the water mist sprayed by the nozzle flows with the airflow. The spiral airflow has a stirring effect and a centrifugal force. The combination of the two can make the water mist evenly distributed on the outside of the airflow. When the oil mist merges into the airflow, it gathers together under the molecular force of the water mist to form water droplets. The water droplets fall with the airflow. At the same time, the stirring effect can make the oil mist and the water mist contact evenly and comprehensively. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of existing gantry machine tools Figure 1 ; Figure 2 Schematic diagram of existing gantry machine tools Figure 2 ; Figure 3 It is a structural schematic diagram of the present invention; Figure 4 A partial diagram of a primary recycling facility Figure 1 ; Figure 5 A partial cross-section of the primary recycling facility Figure 1 ; Figure 6 is a schematic diagram of the inner pipeline; Figure 7 A partial diagram of a primary recycling facility Figure 2 ; Figure 8 A partial cross-section of the primary recycling facility Figure 2 ; Fig. 9 is a schematic diagram of the enrichment unit; Fig.10 It is a structural diagram of a secondary recycling and processing organization; Fig.11 It is a partial schematic diagram of the secondary recycling and processing facility; Fig.12 A cross-sectional view of the installation shell; Fig.13 Schematic diagram of the recovery unit.

[0019] The reference numerals in the accompanying drawings are: 100, primary recycling and processing mechanism; 101, first filter element; 102, blower; 103, inner pipe; 104, water pipe; 105, nozzle; 106, outer sleeve; 107, nozzle; 108, output pipe; 109, propeller blade; 110, input pipe; 111, liquid storage tank; 112, lug; 113, drain valve; 114, auxiliary pipe; 115, outer cover shell; 116, bottom Tube; 117, enrichment unit; 1171, upper fan blade; 1172, lower fan blade; 1173, elbow; 118, drain pipe; 200, secondary recovery and processing mechanism; 201, mounting shell; 2011, inner bracket; 2012, drain port; 202, second filter element; 203, recovery unit; 2031, synchronous belt group; 2032, discharge electrode; 2033, scraper; 300, connecting pipe. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] Reference Figure 3-Figure 13 , an oil mist recovery and cleaning device for a gantry machine tool, comprising a primary recovery and processing mechanism 100, a secondary recovery and processing mechanism 200 and a connecting pipe 300 arranged therebetween.

[0022] First-level recycling and processing institutions 100: Reference Figure 4-Figure 9 The primary recovery and processing mechanism 100 includes an inner pipe 103 and an outer sleeve 106 arranged outside the inner pipe 103.

[0023] A blower 102 is arranged at the upper pipe opening of the inner pipe 103. Preferably, a first filter element 101 is arranged at the air inlet end of the blower 102, which can be realized by using existing filtering technology and will not be described in detail. The inner pipe 103 is divided into an upper installation section, a middle connecting section and a lower air outlet section of coaxial unequal diameters along the axis direction, wherein the upper installation section and the lower air outlet section are both cylindrical in shape, the middle connecting section is in the shape of a truncated cone with a diameter increasing from bottom to top, and a water pipe 104 is arranged on the upper installation section, and one end of the water pipe 104 is connected to a water source, for example, a water source. The liquid outlet end of the pump is connected, and the liquid inlet end of the water pump is connected to the water tank. The other end of the water pipe 104 extends into the upper mounting section and is provided with a plurality of nozzles 105. Furthermore, a plurality of water pipes 104 are arranged in an array along the circumferential direction of the upper mounting section. Furthermore, a propeller blade 109 is arranged in the lower pipe opening of the lower air outlet section. A plurality of propeller blades 109 are arranged in an array along the circumferential direction of the lower air outlet section. The airflow output through the lower air outlet section is guided by the propeller blades 109 and then output downward in a spiral state. The benefits are explained in detail later.

[0024] The outer circumferential surface of the outer sleeve 106 is provided with a nozzle 107, and the end of the nozzle 107 is connected to an input pipe 110. The end of the input pipe 110 is used to receive oil mist. Preferably, a plurality of nozzles 107 are arranged in an array along the circumferential direction of the outer sleeve 106, and a plurality of input pipes 110 are correspondingly arranged. The ends of the plurality of input pipes 110 can be distributed at different positions of the gantry machine tool to improve the comprehensiveness of extracting oil mist.

[0025] The bottom of the outer sleeve 106 is connected to the output pipe 108, the bottom of the output pipe 108 is provided with an outer cover shell 115, the bottom of the outer cover shell 115 is provided with a bottom pipe 116, a liquid storage tank 111 is provided below the bottom pipe 116, the bottom of the bottom pipe 116 extends into the liquid storage tank 111 and is close to the bottom of the tank, and the outer circular surface of the bottom pipe 116 is provided with a side nozzle, which is connected to the connecting pipe 300.

[0026] The outer surface of the liquid storage tank 111 is provided with a lug 112 , on which a drain valve 113 is provided, and an enrichment component is provided in the outer cover shell 115 .

[0027] The enrichment component includes a plurality of enrichment units 117 arranged in an array along a vertical direction in the outer cover shell 115. Furthermore, the enrichment unit 117 includes an upper fan blade 1171 and a lower fan blade 1172 arranged in the outer cover shell 115, wherein the upper fan blade 1171 is provided with an upper avoidance channel for air flow, and the upper avoidance channel is close to the cavity wall of the outer cover shell 115, and the lower fan blade 1172 is provided with a lower avoidance channel for air flow, and the lower avoidance channel is close to the axis of the outer cover shell 115. The lower fan blade 1172 also includes an annular groove, which is coaxially connected to the cavity wall of the outer cover shell 115, and a bent pipe 1173 is provided at the bottom of the annular groove, and the end of the bent pipe 1173 extends out of the outer cover shell 115.

[0028] The ends of the curved pipes 1173 of the plurality of enrichment units 117 are connected via a drain pipe 118 , and the drain pipe 118 is connected to the liquid storage tank 111 .

[0029] The working process of the primary recycling and processing mechanism 100 is specifically as follows: The airflow formed by starting the blower 102 flows from top to bottom in the inner pipe 103. Since the diameter of the lower pipe opening of the inner pipe 103 is smaller than the diameter of the upper pipe opening, the flow rate of the airflow output through the lower pipe opening of the inner pipe 103 is faster. Based on the Bernoulli principle, a negative pressure is formed near the lower pipe opening of the inner pipe 103. The negative pressure can suck the oil mist. The oil mist enters the outer sleeve 106 through the input pipe 110 and the nozzle 107, and merges into the airflow and flows with the airflow. The advantages are: on the one hand, it can prevent the oil mist from sticking to the blower 102. On the other hand, if the amount of oil mist generated during the gantry machine tool processing is small, then if the density of the air near the input pipe 110 is relatively small, and the weight is relatively small, it will be drawn into the outer sleeve under the traction of the negative pressure. The flow rate of the oil mist gas in 106 is relatively fast. If the amount of oil mist generated is large, the density of the air near the input pipe 110 is relatively large, and the weight is relatively large. Under the negative pressure traction, the flow rate of the oil mist gas drawn into the outer sleeve 106 is relatively slow. In other words, this method of negative pressure traction of oil mist gas based on the Bernoulli principle can adapt to the amount of oil mist generated by the gantry machine tool processing, and solves the problem mentioned in the background technology that "the amount of oil mist generated during the machine tool processing is uncontrollable, so the amount of oil mist entering the recovery box is uncontrollable, and the cleaning liquid sprayed by the nozzle is quantitative, so it is easy to spray too much or too little. The former results in a waste of cleaning liquid, and the latter results in incomplete oil mist recovery and treatment." When the airflow is output through the lower pipe opening of the inner pipe 103, the propeller blades 109 can make the airflow flow downward in a spiral state. The advantage is that the water mist sprayed by the nozzle 105 flows with the airflow. The airflow in the spiral state has a stirring effect and a centrifugal force. The combination of the two can make the water mist evenly distributed on the outside of the airflow. When the oil mist merges into the airflow, it is immediately gathered together under the molecular force of the water mist to form water droplets. The water droplets fall together with the airflow. At the same time, the stirring effect can make the oil mist and the water mist contact evenly and comprehensively. The water droplets and the air flow move downward and fall onto the enrichment unit 117, passing through the upper avoidance port and the lower avoidance port in sequence. In this process, the water droplets will remain on the upper fan blades 1171 and the lower fan blades 1172, and the air flow will enter the secondary recovery and treatment mechanism 200 through the connecting pipe 300. It should be noted that since the lower pipe opening of the bottom pipe 116 is close to the bottom of the liquid storage tank 111, and the liquid storage tank 111 contains water, the lower pipe opening of the bottom pipe 116 is sealed by water, and the water droplets fall into the annular groove along the upper fan blades 1171 and the lower fan blades 1172, and flow into the liquid storage tank 111 through the elbow 1173 and the drain pipe 118. Part of the liquid can be stored at the elbow 1173, so the gas cannot be output through the bottom pipe 116 or the elbow 1173, and can only be output through the connecting pipe 300; After the water droplets fall into the liquid storage tank 111, the oil mist component will float on the liquid surface. The drain valve 113 is opened, and the oil mist component floating on the liquid surface can be output through the drain valve 113. It should be noted that after the processing is completed, some oil mist components will float on the liquid surface, but the liquid level is lower than the height of the drain valve 113 and cannot be output. At this time, an auxiliary pipe 114 with a bottom close to the bottom of the tank can be provided on the liquid storage tank 111. Water is injected through the auxiliary pipe 114 to raise the liquid level, so that the last part of the oil mist component can be smoothly output through the drain valve 113.

[0030] Secondary recycling and processing institutions 200: Most of the oil mist can be recovered through the primary recovery and processing mechanism 100, but inevitably there is a small amount of oil mist components that have not been recovered. Therefore, this small amount of oil mist components can be recovered through the secondary recovery and processing mechanism 200.

[0031] Reference Figure 10-13 The secondary recovery and processing mechanism 200 includes a mounting shell 201, an exhaust hole and an air inlet hole are provided on the upper surface of the mounting shell 201, the air inlet hole is connected to the connecting pipe 300, a second filter element 202 is provided at the upper opening of the exhaust hole, and a drain port 2012 is provided at the bottom of the cavity of the mounting shell 201.

[0032] A recovery unit 203 is arranged in the installation shell 201, and the recovery unit 203 includes an inner bracket 2011. A synchronous belt group 2031 is arranged on the inner bracket 2011. The synchronous belt group 2031 includes two pulleys with vertically arranged axes and made of insulating materials, and a synchronous belt arranged between the two pulleys and made of conductive material. The motor that drives the synchronous belt group 2031 to operate is arranged on the outer surface of the installation shell 201.

[0033] The movement direction of the synchronous belt group 2031 is parallel to the length direction of the mounting shell 201. Two synchronous belt groups 2031 are arranged along the width direction of the mounting shell 201. A discharge electrode 2032 is arranged between the two synchronous belt groups 2031. The synchronous belt serves as a dust collecting electrode and forms an electrostatic dust removal structure with the discharge electrode 2032. After the airflow enters the mounting shell 201 through the connecting pipe 300, it will pass through the area between the synchronous belt group 2031 and the discharge electrode 2032, and then be output to the outside through the second filter element 202. In this process, under the action of the electrostatic field, the oil mist component will be adsorbed on the surface of the synchronous belt.

[0034] A scraper 2033 is provided in the mounting shell 201. Two scrapers 2033 are provided and are respectively located on the opposite sides of the two synchronous belt groups 2031. The scrapers 2033 are arranged obliquely and fit with the synchronous belts. The scrapers 2033 are made of insulating material. The distance between the scraper 2033 and the bottom of the mounting shell 201 decreases along the movement direction of the synchronous belt group 2031. Therefore, during the operation of the synchronous belt group 2031, the oil mist components adsorbed on the surface of the synchronous belt can be scraped off by the scrapers 2033. The drain port 2012 is located below the scraper 2033 and close to the lowest point of the scraper 2033. Therefore, the scraped oil mist components are discharged outward through the drain port 2012.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An oil mist recovery and cleaning device for a gantry machine tool, comprising a primary recovery and processing mechanism (100) and a secondary recovery and processing mechanism (200) and a connecting pipe (300) arranged therebetween, characterized in that: The primary recovery and processing mechanism (100) comprises an inner pipe (103) and an outer sleeve (106) arranged outside the inner pipe (103); A blower (102) is arranged at the upper pipe opening of the inner pipe (103). The inner pipe (103) is divided into a coaxial upper installation section, a middle connection section and a lower air outlet section with different diameters along the axis direction. The upper installation section and the lower air outlet section are both cylindrical in shape. The middle connection section is in the shape of a truncated cone with a diameter increasing from bottom to top. A water pipe (104) is arranged on the upper installation section. One end of the water pipe (104) is connected to a water source, and the other end extends into the upper installation section and is provided with a plurality of nozzles (105). A nozzle (107) is arranged on the outer circumferential surface of the outer sleeve (106). The end of the nozzle (107) is connected to an input pipe (110). The end of the input pipe (110) is used to receive oil mist.

2. The oil mist recovery and cleaning device for a gantry machine tool according to claim 1, characterized in that: A propeller blade (109) is arranged in the lower pipe opening of the lower air outlet section, and a plurality of propeller blades (109) are arranged in an array along the circumferential direction of the lower air outlet section. The airflow output through the lower air outlet section is guided by the propeller blades (109) and then output downward in a spiral state.

3. The oil mist recovery and cleaning device for a gantry machine tool according to claim 2, characterized in that: The bottom of the outer sleeve (106) is connected to an output pipe (108), the bottom of the output pipe (108) is provided with an outer cover shell (115), the bottom of the outer cover shell (115) is provided with a bottom pipe (116), a liquid storage tank (111) is provided below the bottom pipe (116), the bottom of the bottom pipe (116) extends into the liquid storage tank (111) and is close to the bottom of the tank, a side nozzle is provided on the outer circumferential surface of the bottom pipe (116), and the side nozzle is connected to the connecting pipe (300), and a plurality of enrichment components are arranged in an array along the vertical direction in the outer cover shell (115).

4. The oil mist recovery and cleaning device for a gantry machine tool according to claim 3, characterized in that: The outer surface of the liquid storage box (111) is provided with a lug (112), and a liquid discharge valve (113) is provided on the lug (112).

5. The oil mist recovery and cleaning device for a gantry machine tool according to claim 3, characterized in that: The enrichment unit (117) comprises an upper fan blade (1171) and a lower fan blade (1172) arranged in the outer cover shell (115); the upper fan blade (1171) is provided with an upper avoidance channel for airflow, the upper avoidance channel is close to the cavity wall of the outer cover shell (115); the lower fan blade (1172) is provided with a lower avoidance channel for airflow, the lower avoidance channel is close to the axis of the outer cover shell (115); the lower fan blade (1172) further comprises an annular groove, the annular groove is coaxially connected to the cavity wall of the outer cover shell (115), a bend pipe (1173) is provided at the bottom of the annular groove, and the end of the bend pipe (1173) extends out of the outer cover shell (115); The ends of the bent pipes (1173) of the plurality of enrichment units (117) are connected via a liquid discharge pipe (118), and the liquid discharge pipe (118) is connected to the liquid storage tank (111).

6. The oil mist recovery and cleaning device for a gantry machine tool according to claim 4, characterized in that: An auxiliary pipe (114) is provided on the liquid storage tank (111), and a lower pipe opening of the auxiliary pipe (114) is close to the bottom of the liquid storage tank (111).

7. The oil mist recovery and cleaning device for a gantry machine tool according to claim 1, characterized in that: The air inlet end of the blower (102) is provided with a first filter element (101), a plurality of water pipes (104) are arranged in an array along the circumferential direction of the upper mounting section, a plurality of nozzles (107) are arranged in an array along the circumferential direction of the outer sleeve (106), and a plurality of input pipes (110) are arranged correspondingly.

8. The oil mist recovery and cleaning device for a gantry machine tool according to claim 1 or 5, characterized in that: The secondary recovery and processing mechanism (200) comprises a mounting shell (201), an exhaust hole and an air inlet hole are provided on the upper surface of the mounting shell (201), the air inlet hole is connected to the connecting pipe (300), a second filter element (202) is provided at the upper opening of the exhaust hole, a liquid discharge port (2012) is provided at the bottom of the cavity of the mounting shell (201), and a recovery unit (203) is provided in the mounting shell (201).

9. The oil mist recovery and cleaning device for a gantry machine tool according to claim 8, characterized in that: The recovery unit (203) comprises an inner bracket (2011), a synchronous belt set (2031) is arranged on the inner bracket (2011), the synchronous belt set (2031) comprises two pulleys whose axes are arranged vertically and are made of insulating materials, and a synchronous belt arranged between the two pulleys and is made of conductive material, and a motor driving the synchronous belt set (2031) to operate is arranged on the outer surface of the mounting shell (201); The movement direction of the synchronous belt group (2031) is parallel to the length direction of the installation shell (201), two synchronous belt groups (2031) are arranged along the width direction of the installation shell (201), and a discharge electrode (2032) is arranged between the two synchronous belt groups (2031).

10. The oil mist recovery and cleaning device for a gantry machine tool according to claim 9, characterized in that: A scraper (2033) is arranged in the mounting shell (201); two scrapers (2033) are arranged and are respectively located on opposite sides of two synchronous belt groups (2031); the scrapers (2033) are arranged obliquely and fit with the synchronous belts; the scrapers (2033) are made of insulating material; the distance between the scrapers (2033) and the bottom of the mounting shell (201) decreases along the moving direction of the synchronous belt group (2031); and the liquid discharge port (2012) is located below the scrapers (2033) and close to the lowest point of the scrapers (2033).

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