Pollution discharge treatment device for nitrogen making equipment

Abstract

The utility model discloses a pollution discharge treatment device for nitrogen making equipment, which relates to the technical field of nitrogen preparation and comprises a device main body, a filter screen is connected to the upper part in the device main body, and a sealing door is connected to one side of the device main body; a motor is installed on the back of the device body, the output end of the motor is connected with a second rotating shaft, and a slot is formed in one end of the second rotating shaft. Through the arrangement of the filter screen, the sealing door, the motor and the rapping bar, after an oil-water-gas mixture enters, impurities are filtered out through the filter screen, the filter screen is L-shaped, so that the impurities cannot be brought out when waste gas is exhausted upwards, the motor drives the second rotating shaft to rotate, and the rapping bar collides with the filter screen to generate vibration after the second rotating shaft rotates, so that the oil-water-gas mixture is filtered out. Impurities roll to the sealing door by matching with the slope at the bottom of the filter screen, the filter screen blocking phenomenon is reduced, the rapping bar is made of silica gel, the filter screen is prevented from being damaged by knocking, and then the filter screen can be cleaned only by opening the sealing door; a single filter screen can realize filtering, so that the cleaning is convenient and the blockage is difficult.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen preparation, in particular to a sewage treatment device for nitrogen production equipment. Background Art

[0002] Nitrogen is the gas with the highest content in the air. It is usually used as a protective gas, to make refrigerants, to make ammonia, etc. It is widely used. There are three main methods for preparing nitrogen, namely liquid air fractionation, cryogenic separation and membrane separation. In the nitrogen production process, the air must be dehydrated, dusted and treated to remove hydrocarbon compounds, thus producing a large amount of oily wastewater and waste gas mixture. In order to avoid environmental pollution caused by the arbitrary discharge of oily wastewater, the wastewater needs to be treated through a treatment device.

[0003] A sewage treatment device for nitrogen production equipment with application number 201921534522.4 includes a treatment bin. When two filters need to be installed, the sewage treatment device for nitrogen production equipment is used. When the connecting plate drives the card block to move to the right, the card block is pressed against the limit bin, and when the card block is aligned with the opening on the top wall of the inner cavity of the limit bin, the card spring is reset to push the card block into the limit bin, so that the filter is clamped, and then the extrusion block is installed to drive the extrusion rod to squeeze the card block. After precipitation, the waste gas will flow out from the air vents on the top wall of the inner cavity of the liquid storage bin and then be filtered by the filter on the top and then discharged from the air outlet, so that the water is retained on the right side of the separation bin, and then the oil and water in the separation bin are discharged through the first liquid outlet pipe and the second liquid outlet pipe, so that the oil, water and gas can be separated, so as to extend the service life of the filter and improve the treatment efficiency.

[0004] This technical solution uses a three-layer filtering structure to filter impurities in the air, impurities in the liquid, and separate oil and water. The large number of filtering structures makes the subsequent cleaning of the filtering structures very cumbersome and time-consuming and labor-intensive. Moreover, as the working time of the filtering structure increases, the efficiency will gradually decrease to a certain extent due to blockage. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a sewage treatment device for nitrogen production equipment, in order to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage treatment device for nitrogen production equipment, comprising a device body, a filter screen is connected to the upper part of the device body, and a sealing door is connected to one side of the device body; a motor is installed on the back of the device body, and a second rotating shaft is connected to the output end of the motor, a slot is provided at one end of the second rotating shaft, a limit plate is connected to the outer surface of the device body, and a first rotating shaft passes through the back of the limit plate, an insert block is fixed to one end of the first rotating shaft, and a groove is provided at the bottom of the first rotating shaft; and a reinforcing rope is connected to the inside of the groove, and a knocking rod is connected to the outer surface of the reinforcing rope.

[0007] By adopting the above technical solution, the oil-water-gas mixture enters and filters impurities through the filter. The filter is L-shaped, so the impurities will not be brought out when the exhaust gas is discharged upward, and the second shaft is driven to rotate by the motor. After the second shaft rotates, the knocking rod collides with the filter to generate vibration, and the impurities roll toward the sealing door in conjunction with the slope at the bottom of the filter, thereby reducing the clogging of the filter. The knocking rod is made of silicone material to avoid damaging the filter. After that, you only need to open the sealing door to clean the filter. The reinforcing rope is a steel wire rope with a knot at the bottom to adapt to the shape of the knocking rod. The knocking rod can be supported by the reinforcing rope to prevent the knocking rod from breaking after several collisions and making it impossible to perform subsequent knocking operations. When the knock rod is severely worn, the limit plate can be removed to take out the first rotating shaft and the knock rod. When taking and placing the first rotating shaft, the knock rod can enter the groove to avoid the knock rod getting stuck in the first rotating shaft and causing the first rotating shaft to be unable to be taken out. During installation, the first rotating shaft is inserted into the main body of the device, and then the first rotating shaft is rotated to make the plug block correspond to the slot and then the first rotating shaft is inserted to make the first rotating shaft fit with the second rotating shaft, and the plug block enters the slot. The plug block and the slot are used to facilitate the subsequent transmission of torque so that the second rotating shaft drives the first rotating shaft to rotate, and then drives the knock rod to rotate. After that, the limit plate is limited to the main body of the device by bolts to prevent the first rotating shaft from falling off.

[0008] Furthermore, the cross section of the filter is in an "L" shape, and the bottom of the filter and the upper part of the device body are both sloped.

[0009] By adopting the above technical solution, the filter is L-shaped, so impurities will not be brought out when the exhaust gas is discharged upward. The slope at the bottom of the filter makes the impurities roll toward the sealing door, reducing the occurrence of filter clogging.

[0010] Furthermore, the first rotating shaft is rotatably connected to the limiting plate and the device body respectively, and the limiting plate is detachably connected to the device body via bolts.

[0011] By adopting the above technical solution, the limit plate is removed to take out the first rotating shaft and the knock rod. During installation, the first rotating shaft is inserted into the main body of the device, and then the first rotating shaft is rotated to make the insert block correspond to the slot and then the first rotating shaft is inserted. Then, the limit plate is limited to the main body of the device by bolts to prevent the first rotating shaft from falling off.

[0012] Furthermore, the width of the groove is greater than the diameter of the knocking rod, and two knocking rods and two reinforcing ropes are provided.

[0013] By adopting the above technical solution, when the first rotating shaft is taken out and placed, the knocking rod can enter the groove, thereby preventing the knocking rod from getting stuck in the first rotating shaft and making it impossible to take out the first rotating shaft.

[0014] Furthermore, the reinforcement rope is a steel wire rope, and the bottom end of the reinforcement rope is knotted.

[0015] By adopting the above technical solution, the reinforcing rope is a steel wire rope with a knot at the bottom end, so as to adapt to the shape of the knocking rod. The knocking rod can be supported by the reinforcing rope to prevent the knocking rod from breaking after hitting several times and being unable to perform subsequent knocking operations.

[0016] Furthermore, the knock rod is made of silicone material, and the bottom end of the knock rod is spherical.

[0017] By adopting the above technical solution, after the first rotating shaft rotates, the knocking rod collides with the filter to generate vibration, and the impurities roll toward the sealing door in conjunction with the slope at the bottom of the filter, thereby reducing the occurrence of filter clogging. The knocking rod is made of silicone to prevent the filter from being damaged.

[0018] Furthermore, the slot is adapted to the plug-in block, and the cross-sections of the slot and the plug-in block are both rounded rectangular.

[0019] By adopting the above technical solution, after the motor is started, the output end drives the second rotating shaft to rotate, and the second rotating shaft transmits power through the plug block and the slot to rotate the first rotating shaft.

[0020] Furthermore, the knocking rod abuts against the filter screen, and the sealing door is rotatably connected to the device body.

[0021] By adopting the above technical solution, after the first rotating shaft rotates, the knocking rod collides with the filter to generate vibration, and cooperates with the slope at the bottom of the filter to make the impurities roll toward the sealing door. After that, the staff only needs to open the sealing door to pour out the impurities, and the filter can be cleaned to avoid blockage caused by stubborn stains that are difficult to shake out.

[0022] Furthermore, a liquid inlet pipe is connected to the outer surface of the device body, and a liquid inlet valve is installed at one end of the liquid inlet pipe, a drain valve and an oil drain valve are respectively installed below the two sides of the device body, a window is provided on the outer surface of the device body, and a one-way valve is installed on one side of the top of the device body.

[0023] By adopting the above technical scheme, the staff opens the liquid inlet valve to allow the oil-water-gas mixture to pass through the liquid inlet pipe into the main body of the device. Then the oil-water-gas mixture is precipitated in the main body of the device, so that the gas with low density is separated from the liquid and moves upward, and is guided into the one-way valve by the upper slope inside the main body of the device to be discharged. Since the filter is L-shaped, it can prevent the rising gas from carrying away impurities, and the oil-water mixed liquid has a lower density than water, so the oil and water are stratified, with the oil layer in the upper layer and the water layer in the lower layer. Then the staff first opens the drain valve to discharge the water in the lower layer. When the water is discharged, the staff closes the drain valve and then opens the oil drain valve to discharge the oil, thereby completing the separation work.

[0024] Furthermore, a hand wheel is fixed to the other end of the first rotating shaft.

[0025] By adopting the above technical solution, it is more convenient for the staff to rotate the first rotating shaft through the hand wheel, so that the plug block and the slot are more easily matched.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model is provided with a filter screen, a sealing door, a motor and a knocking rod. After the oil-water-gas mixture enters, impurities are filtered through the filter screen. The filter screen is L-shaped, so the impurities will not be taken out when the exhaust gas is discharged upward, and the second rotating shaft is driven by the motor to rotate. After the second rotating shaft rotates, the knocking rod collides with the filter screen to generate vibration, and the impurities are rolled toward the sealing door in cooperation with the slope at the bottom of the filter screen, thereby reducing the occurrence of filter screen blockage. The knocking rod is made of silicone material to avoid damaging the filter screen. After that, the filter screen can be cleaned by simply opening the sealing door; a single filter screen can achieve filtering, which is convenient for cleaning and not easy to be blocked;

[0028] 2. The utility model sets a reinforcing rope, which is a steel wire rope with a knot at the bottom end, so as to adapt to the shape of the knocking rod. The reinforcing rope can support the knocking rod to prevent the knocking rod from breaking after several impacts and being unable to perform subsequent knocking operations; thereby increasing the service life of the structure;

[0029] 3. The utility model provides a limit plate, a groove, a slot and an insert block. When the knock rod is severely worn, the limit plate can be removed to take out the first rotating shaft and the knock rod. When the first rotating shaft is taken out and placed, the knock rod can enter the groove to avoid the knock rod getting stuck in the first rotating shaft and causing the first rotating shaft to be unable to be taken out. During installation, the first rotating shaft is inserted into the main body of the device. Then, the first rotating shaft is rotated to make the insert block correspond to the slot and then the first rotating shaft is inserted to make the first rotating shaft fit with the second rotating shaft, and the insert block enters the slot. The insert block and the slot are used to facilitate the subsequent transmission of torque so that the second rotating shaft drives the first rotating shaft to rotate, and then drives the knock rod to rotate. Then, the limit plate is limited to the main body of the device by bolts to prevent the first rotating shaft from falling off; it is convenient to replace the damaged structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0032] Figure 3 This is a schematic diagram of the explosion structure of the second rotating shaft of the utility model;

[0033] Figure 4 For the utility model Figure 3 A magnified view of the structure in Figure 2.

[0034] In the figure: 1. Device body; 2. Liquid inlet valve; 3. Liquid inlet pipe; 4. Drain valve; 5. Oil drain valve; 6. One-way valve; 7. Sealing door; 8. Filter; 9. Motor; 10. Limit plate; 11. First rotating shaft; 12. Hand wheel; 13. Knocking rod; 14. Groove; 15. Second rotating shaft; 16. Slot; 17. Insert block; 18. Reinforcement rope. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure.

[0037] Embodiment 1:

[0038] A sewage treatment device for nitrogen production equipment, such as Figure 1-Figure 4 As shown, it includes a device body 1, a filter screen 8 is connected to the upper part of the device body 1, and the oil-water-gas mixture passes through the filter screen 8 and is filtered by the filter screen 8 to remove impurities; the cross section of the filter screen 8 is "L"-shaped to prevent the rising gas from carrying away the impurities; the bottom of the filter screen 8 is sloped to make the impurities roll toward the sealing door 7; a sealing door 7 is connected to one side of the device body 1, and the sealing door 7 is rotatably connected to the device body 1. The staff only needs to open the sealing door 7 to pour out the impurities, and can clean the filter screen 8 to avoid stubborn stains that are difficult to shake out and cause blockage;

[0039] The back of the device body 1 is equipped with a motor 9, and the output end of the motor 9 is connected to the second rotating shaft 15. A slot 16 is provided at one end of the second rotating shaft 15. After the motor 9 is started, the output end drives the second rotating shaft 15 to rotate; the outer surface of the device body 1 is connected to a limit plate 10, and the limit plate 10 is detachably connected to the device body 1 by bolts. The staff can prevent the first rotating shaft 11 from falling off by limiting the limit plate on the device body 1 by bolts; the back of the limit plate 10 is penetrated by the first rotating shaft 11, and the first rotating shaft 11 is respectively connected to the limit plate 10 and the device body 1 Rotational connection, an insert block 17 is fixed to one end of the first rotating shaft 11, and the slot 16 is adapted to the insert block 17. The cross-sections of the slot 16 and the insert block 17 are both rounded rectangular. The second rotating shaft 15 transmits power to the slot 16 through the insert block 17 to rotate the first rotating shaft 11; a groove 14 is provided at the bottom of the first rotating shaft 11, and the width of the groove 14 is greater than the diameter of the knock rod 13. When the first rotating shaft 11 is taken or placed, the knock rod 13 can enter the inside of the groove 14, so as to avoid the phenomenon that the knock rod 13 is stuck in the first rotating shaft 11 and the first rotating shaft 11 cannot be taken out;

[0040] A reinforcing rope 18 is connected to the inside of the groove 14. The reinforcing rope 18 is a steel wire rope. The bottom end of the reinforcing rope 18 is knotted. The reinforcing rope 18 can support the knocking rod 13 to prevent the knocking rod 13 from breaking after hitting several times and being unable to perform subsequent knocking operations; the outer surface of the reinforcing rope 18 is connected to the knocking rod 13, which is made of silicone material. The bottom end of the knocking rod 13 is spherical. There are two knocking rods 13 and reinforcing rope 18. The two knocking rods 13 are both against the filter 8. After the first rotating shaft 11 rotates, the knocking rod 13 collides with the filter 8 to generate vibration, and cooperates with the slope at the bottom of the filter 8 to roll impurities toward the sealing door 7, thereby reducing the clogging of the filter 8. The knocking rod 13 is made of silicone material to prevent the filter 8 from being damaged.

[0041] See also Figure 1 and Figure 2 In the above embodiment, the outer surface of the device body 1 is connected with a liquid inlet pipe 3, and a liquid inlet valve 2 is installed at one end of the liquid inlet pipe 3. The staff opens the liquid inlet valve 2 to allow the oil-water gas mixture to flow through the liquid inlet pipe 3 to the upper part of the device body 1; the drainage valve 4 and the oil drain valve 5 are respectively installed at the lower part of the two sides of the device body 1. The staff first opens the drainage valve 4 to discharge the water in the lower layer. When the water is discharged, the staff closes the drainage valve 4 and then opens the oil drain valve 5 to discharge the oil, thereby completing the separation work; the outer surface of the device body 1 is provided with a window, and the setting of the window makes it convenient for the staff to check how much water and oil are left, so as to determine whether to control the opening and closing of the drainage valve 4 and the oil drain valve 5; the upper part of the interior of the device body 1 is sloped, and a one-way valve 6 is installed on one side of the top of the device body 1. The gas with low density is separated from the liquid and flows upward, and enters the one-way valve 6 through the guidance of the slope at the upper part of the interior of the device body 1 and is discharged.

[0042] Embodiment 2:

[0043] On the basis of the above-mentioned first embodiment, in order to facilitate the staff to manually rotate the first rotating shaft 11, the following configuration is adopted.

[0044] See also Figure 1 and Figure 3 In the above embodiment, a hand wheel 12 is fixed to the other end of the first rotating shaft 11 , and the staff can more easily rotate the first rotating shaft 11 through the hand wheel 12 , so that the insert block 17 corresponds to the slot 16 .

[0045] The implementation principle of the utility model is as follows: first, the staff opens the liquid inlet valve 2, so that the oil-water-gas mixture passes through the liquid inlet pipe 3 and flows to the upper part of the device body 1, and then the oil-water-gas mixture passes through the filter screen 8 and is filtered by the filter screen 8 to remove impurities, and then the oil-water-gas mixture is precipitated in the device body 1, so that the gas with low density is separated from the liquid and flows upward, and enters the one-way valve 6 through the guidance of the upper slope inside the device body 1 to be discharged, because the filter screen 8 is L-shaped, it can prevent the rising gas from taking away impurities, and the oil-water mixed liquid has a lower density than the water, so that the oil and water form layers, the oil layer is located in the upper layer, and the water layer is located in the lower layer, and then the staff first opens the drain valve 4 to discharge the water in the lower layer, and when the water is discharged, the staff closes the drain valve 4 and then opens the oil drain valve 5, so as to discharge the oil, and the separation work is completed;

[0046] When the filter screen 8 needs to be cleaned, the staff can turn on the motor 9. After the motor 9 is started, the output end drives the second rotating shaft 15 to rotate. The second rotating shaft 15 transmits power through the plug block 17 and the slot 16 to rotate the first rotating shaft 11. After the first rotating shaft 11 rotates, the knocking rod 13 collides with the filter screen 8 to generate vibration, and cooperates with the slope at the bottom of the filter screen 8 to make the impurities roll toward the sealing door 7, thereby reducing the clogging of the filter screen 8. The knocking rod 13 is made of silicone material to avoid damaging the filter screen 8. At the same time, the knocking rod 13 can be supported by the reinforcing rope 18 to avoid the knocking rod 13 breaking after several collisions and being unable to perform subsequent knocking operations. After that, the staff only needs to open the sealing door 7 to pour out the impurities, and can clean the filter screen 8 to avoid stubborn stains that are difficult to shake out and cause clogging;

[0047] When the knock rod 13 is severely worn, the staff will remove the limit plate 10 to take out the first rotating shaft 11 and the knock rod 13. When the first rotating shaft 11 is taken or placed, the knock rod 13 can enter the groove 14 to prevent the knock rod 13 from getting stuck in the first rotating shaft 11 and causing the first rotating shaft 11 to be unable to be taken out. During installation, the staff will insert the knock rod 13 into the groove 14 and then insert the first rotating shaft 11 into the device body 1. After that, the staff will rotate the first rotating shaft 11 through the hand wheel 12 to make the insert block 17 correspond to the slot 16. After the insert block 17 corresponds to the slot 16, the staff will continue to insert the first rotating shaft 11 to make the first rotating shaft 11 fit with the second rotating shaft 15, and the insert block 17 enters the slot 16. After that, the staff will limit the limit plate on the device body 1 through bolts to prevent the first rotating shaft 11 from falling off.

[0048] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A wastewater treatment device for nitrogen production equipment, comprising a device body (1), characterized in that: A filter screen (8) is connected to the upper part of the device body (1), and a sealing door (7) is connected to one side of the device body (1); a motor (9) is installed on the back of the device body (1), and the output end of the motor (9) is connected to a second rotating shaft (15), one end of the second rotating shaft (15) is provided with a slot (16), the outer surface of the device body (1) is connected to a limit plate (10), and the back of the limit plate (10) is penetrated by a first rotating shaft (11), one end of the first rotating shaft (11) is fixed with an insert block (17), and the bottom of the first rotating shaft (11) is provided with a groove (14); and a reinforcing rope (18) is connected to the inside of the groove (14), and the outer surface of the reinforcing rope (18) is connected to a knocking rod (13).

2. The sewage treatment device for nitrogen production equipment according to claim 1, characterized in that: The filter screen (8) has an L-shaped cross section, and the bottom of the filter screen (8) and the top of the inside of the device body (1) are both sloped.

3. The sewage treatment device for nitrogen production equipment according to claim 1, characterized in that: The first rotating shaft (11) is rotatably connected to the limiting plate (10) and the device body (1) respectively, and the limiting plate (10) is detachably connected to the device body (1) via bolts.

4. The sewage treatment device for nitrogen production equipment according to claim 1, characterized in that: The width of the groove (14) is greater than the diameter of the knocking rod (13), and two knocking rods (13) and two reinforcing ropes (18) are provided.

5. The sewage treatment device for nitrogen production equipment according to claim 4, characterized in that: The reinforcing rope (18) is a steel wire rope, and the bottom end of the reinforcing rope (18) is knotted.

6. The sewage treatment device for nitrogen production equipment according to claim 4, characterized in that: The knock rod (13) is made of silica gel material, and the bottom end of the knock rod (13) is spherical.

7. The sewage treatment device for nitrogen production equipment according to claim 1, characterized in that: The slot (16) is matched with the insert block (17), and the cross sections of the slot (16) and the insert block (17) are both rounded rectangular.

8. The sewage treatment device for nitrogen production equipment according to claim 6, characterized in that: The knocking rod (13) abuts against the filter screen (8), and the sealing door (7) is rotatably connected to the device body (1).

9. The sewage treatment device for nitrogen production equipment according to claim 1, characterized in that: The outer surface of the device body (1) is connected to a liquid inlet pipe (3), and a liquid inlet valve (2) is installed at one end of the liquid inlet pipe (3). A drain valve (4) and an oil drain valve (5) are respectively installed below the two sides of the device body (1). A viewing window is provided on the outer surface of the device body (1), and a one-way valve (6) is installed on one side of the top of the device body (1).

10. The sewage treatment device for nitrogen production equipment according to claim 1, characterized in that: A hand wheel (12) is fixed to the other end of the first rotating shaft (11).

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