Self-cleaning oil sludge filter

Abstract

The utility model discloses a self-cleaning oil sludge filter, which comprises a shell, an air inlet, an air outlet, a filter cartridge, a rotary driving module and a cleaning module, the shell is a column with a horizontally arranged central shaft, the air inlet is arranged on the cylindrical side surface of the shell, and the air outlet is arranged on one cylindrical end surface of the shell; the filter cartridge is located in the shell, a rotating shaft of the filter cartridge is horizontally arranged, and the cartridge wall of the filter cartridge is located between the air inlet and the air outlet; the rotary driving module is connected with the filter cartridge and is used for driving the filter cartridge to rotate around a rotary shaft of the filter cartridge; the cleaning module is located in the shell and fixedly arranged on the inner side of the barrel wall of the filter barrel, and when the filter barrel rotates, the cleaning module can clean the whole filter barrel in a traversal mode. The self-cleaning oil sludge filter has the advantages of convenience, rapidness, labor saving, resource saving and the like.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a self-cleaning sludge filter. Background Art

[0002] In chemical product production scenarios, plate filters or cartridge filters are usually used. Figure 1A and Figure 1B This is a schematic diagram of the working process of the existing plate filter. Figure 2A and Figure 2B It is a schematic diagram of the working process of the existing cartridge filter.

[0003] like Figures 1A to 2B As shown, when the waste gas G to be filtered, which contains oil, stone powder, rubber powder, tackifier and other substances, passes through the existing plate filter or cartridge filter, most of the oil, stone powder, rubber powder, tackifier and other substances are intercepted by the filter medium F, and the filtered waste gas G' is discharged. Among them, the filter medium is usually a plate mesh made of irregularly stacked stainless steel wires.

[0004] In order to maintain a good filtering effect, the stainless steel wire mesh needs to be cleaned in time. If it is not cleaned in time, the stainless steel wire mesh will have more deposited sludge, the filtering resistance will increase, the filtering speed will slow down, the filtering effect will deteriorate, and dirt will accumulate at the filter outlet. This accumulated pollution will require a lot of energy and high-temperature burning to remove in the future.

[0005] The cleaning method of the existing technology is mainly to replace the stainless steel plate mesh manually after the production is completed and the equipment is cooled down. However, frequent replacement of the stainless steel plate mesh will increase the labor of the workers, and after the stainless steel plate mesh is taken out and cooled to room temperature, the filtered matter on its surface will solidify and become more difficult to clean. Utility Model Content

[0006] In view of this, the utility model proposes a self-cleaning sludge filter, which can solve the above existing technical problems. The utility model provides the following technical solutions:

[0007] A self-cleaning sludge filter comprises an outer shell, an air inlet, an air outlet, a filter cartridge, a rotation drive module and a cleaning module, wherein: the outer shell is in the shape of a column with a horizontally arranged central axis, the air inlet is arranged on the cylindrical side surface of the outer shell, and the air outlet is arranged on a cylindrical end surface of the outer shell; the filter cartridge is located inside the outer shell, the rotating axis of the filter cartridge is horizontally arranged, and the cylinder wall of the filter cartridge is located between the air inlet and the air outlet; the rotation drive module is connected to the filter cartridge and is used to drive the filter cartridge to rotate around its rotating axis; the cleaning module is located inside the outer shell and is fixedly arranged on the inner side of the cylinder wall of the filter cartridge, and when the filter cartridge rotates, the cleaning module can traverse and clean the entire filter cartridge.

[0008] Optionally, the cleaning module comprises: a gas cleaning module and / or a liquid cleaning module, the gas cleaning module is used to backwash the filter cartridge using compressed air; the liquid cleaning module is used to backwash the filter cartridge using high-pressure liquid flow.

[0009] Optionally, the gas cleaning module includes: a compressed air backflush pipe and a backflush solenoid valve, wherein the compressed air backflush pipe is externally connected to a high-pressure air bag, and the compressed air backflush pipe has a plurality of nozzles arranged along the direction of the rotation axis and with the opening direction facing downward; the backflush solenoid valve is used to control the opening and closing of the compressed air backflush pipe.

[0010] Optionally, the liquid cleaning module comprises: a high-pressure water backwashing interface and a high-pressure water backwashing pipe, wherein the opening of the high-pressure water backwashing interface faces downward, and the high-pressure water backwashing pipe is connected to an external cleaning alkali solution tank.

[0011] Optionally, the filter cartridge comprises a support cartridge and a filter screen, and the filter screen is detachably laid on the cartridge wall of the support cartridge.

[0012] Optionally, a dirt collecting module is further included, and the dirt collecting module is located below the shell and is used for collecting oil sludge.

[0013] Optionally, the cleaning module is fixedly arranged on the inner side of the lowest position of the cylinder wall of the filter cylinder.

[0014] Optionally, the rotation drive module includes: a reduction motor, a driving gear and a rotating gear, wherein the reduction motor is connected to an external power supply and operates when powered on; the first end of the driving gear is connected to the reduction motor, and the second end of the driving gear is connected to the rotating gear; the rotating gear is sleeved on the rotating shaft of the filter cartridge to drive the filter cartridge to rotate.

[0015] Optionally, it further includes: a plurality of guide support wheels arranged below the filter cartridge, the guide support wheels being used to support the filter cartridge and provide guidance for the filter cartridge when it rotates.

[0016] Optionally, it further includes: a pressure difference detection port arranged on the shell, and the pressure difference detection port is used to place a pressure sensor to detect the pressure difference between the air inlet and the air outlet.

[0017] According to the technical solution of the utility model, since the filter cartridge is horizontally arranged and can rotate, and the cleaning module is fixedly arranged on the inner side of the cartridge wall of the filter cartridge, when the filter cartridge rotates, the cleaning module can traversely clean the entire filter cartridge. Therefore, the cleaning module of the self-cleaning sludge filter can clean the filter net at close range, with high efficiency and full coverage, and can clean the filter net in time during the normal production filtering and waste discharge process, and can be executed without waiting for the production to end and cool down completely. It has the advantages of convenience, speed, labor saving, and resource saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] For the purpose of illustration and not limitation, the present invention will now be described according to its preferred embodiments, in particular with reference to the accompanying drawings, in which:

[0019] Figure 1A It is a top view schematic diagram of the working process of the plate filter in the prior art;

[0020] Figure 1B It is a front view schematic diagram of the working process of the plate filter in the prior art;

[0021] Figure 2A It is a top view schematic diagram of the working process of the cartridge filter of the prior art;

[0022] Figure 2B It is a front view schematic diagram of the working process of the cartridge filter of the prior art;

[0023] Figure 3A It is a front view of the self-cleaning sludge filter according to the embodiment of the utility model;

[0024] Figure 3B It is a side view of a self-cleaning sludge filter according to an embodiment of the utility model;

[0025] Figure 3C is an internal perspective view of a self-cleaning sludge filter according to an embodiment of the utility model;

[0026] FIG. 4A to FIG. 4C It is a front view schematic diagram of the working process of the self-cleaning sludge filter in the embodiment of the utility model.

[0027] In the figure:

[0028] 001. Self-cleaning sludge filter; 10. Housing; 20. Air inlet; 30. Air outlet; 40. Support cylinder; 50. Filter; 60. Rotary drive module; 61. Reducer motor; 62. Drive gear; 63. Rotary gear; 70. Gas cleaning module; 71. Compressed air backflush pipe; 72. Backflush solenoid valve; 80. Liquid cleaning module; 81. High-pressure water backwash interface; 82. High-pressure water backwash pipe; 90. Dirt collection module; 91. Sludge collecting bucket; 92. Sludge discharge port; 93. Sludge bucket cleaning port; 101. Guide support wheel; 102. Inspection port; 103. Pressure difference detection port. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms such as "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like FIG. 3A to FIG. 3C As shown, the self-cleaning sludge filter 001 of the embodiment of the utility model mainly includes a housing 10, an air inlet 20, an air outlet 30, a filter cartridge, a rotation drive module 60, and a cleaning module. Among them, the filter cartridge can be an integrated design, or a split design including a support cartridge 40 and a filter screen 50. The split design is more conducive to flexible replacement of consumables. The cleaning module can specifically include a gas cleaning module 70 and / or a liquid cleaning module 80.

[0033] The housing 10 is in the shape of a column with a horizontally arranged central axis, and can be specifically cylindrical. The air inlet 20 is arranged on the cylindrical side of the housing 10. The air outlet 30 is arranged on a cylindrical end face of the housing 10, and the specific position can be flexibly designed, and can be the central position of the plane, or a position slightly offset from the central position of the plane. The support cylinder 40, the filter screen 50, the gas cleaning module 70 and the liquid cleaning module 80 are all located inside the housing 10.

[0034] The filter cartridge and the housing 10 may be sealed by a sliding silicone rubber strip. The support cartridge 40 in the filter cartridge is located between the air inlet 20 and the air outlet 30. In other words, the airflow from the air inlet 20 to the air outlet 30 flows through the support cartridge 40, especially through the wall of the support cartridge 40. The rotating axis of the support cartridge 40 is arranged horizontally. The filter screen 50 is detachably arranged on the wall of the support cartridge 40, and the consumables can be replaced regularly, which is more cost-effective than the solution of replacing the filter cartridge as a whole. The filter screen 50 may specifically be a stainless steel wire mesh.

[0035] The rotation drive module 60 is connected to the support tube 40, and is used to drive the support tube 40 to rotate around its rotation axis. The rotation drive module 60 may specifically include: a reduction motor 61, a driving gear 62, and a rotating gear 63. The reduction motor 61 is connected to an external power source and operates when powered on; the first end of the driving gear 62 is connected to the reduction motor 61, and the second end of the driving gear 62 is connected to the rotating gear 63; the rotating gear 63 is sleeved on the rotating axis of the support tube 40, and is used to drive the support tube 40 to rotate. Usually, the reduction motor 61 and the driving gear 62 are arranged outside the housing 10, and the rotating gear 63 is arranged inside the housing 10.

[0036] The cleaning module is fixedly arranged on the inner side of the cylinder wall of the filter cylinder, and specifically can be fixedly arranged on the inner side of the cylinder wall of the support cylinder 40, so as to facilitate the reverse purge cleaning operation. The so-called fixed arrangement means that the cleaning module is absolutely fixed in position with reference to a stationary object such as the ground plane, and the cleaning module is not attached to the inner surface of the cylinder wall of the filter cylinder, and the cleaning module is not relatively fixed in position with reference to the local cylinder wall of the filter cylinder. Therefore, when the filter cylinder rotates, the cleaning module can traverse and clean the entire filter cylinder, so the cleaning module of the self-cleaning sludge filter can clean the filter screen at close range, with high efficiency and full coverage.

[0037] The gas cleaning module 70 can be located on the inner side of the cylinder wall of the support cylinder 40, and is used to back-blow the filter screen 50 using compressed air. Since the rotation axis of the support cylinder 40 is arranged horizontally, the gas cleaning module 70 is preferably arranged on the inner side of the lowest position of the cylinder wall of the support cylinder 40, so that the materials back-blown by the gas cleaning module 70 can be more concentrated and more easily fall into the bottom of the shell 10. The gas cleaning module 70 includes a compressed air back-blowing pipe 71 and a back-blowing solenoid valve 72. The compressed air back-blowing pipe 71 is externally connected to a high-pressure air bag, and the pressure of the high-pressure air bag is about 0.3MPa to 0.7MPa. The compressed air back-blowing pipe 71 has a plurality of nozzles arranged along the direction of the rotation axis and with the opening direction facing downward, so as to more comprehensively clean the entire filter cylinder. The back-blowing solenoid valve 72 is used to control the opening and closing of the compressed air back-blowing pipe 71.

[0038] The liquid cleaning module 80 can be located on the inner side of the wall of the support cylinder 40, and is used to backwash the filter screen 50 with a high-pressure liquid flow. Since the rotating shaft of the support cylinder 40 is arranged horizontally, the liquid cleaning module 80 is preferably arranged on the inner side of the lowest position of the wall of the support cylinder 40, so that the substances backwashed by the liquid cleaning module 80 can be more concentrated and more easily fall into the bottom of the housing 10. The liquid cleaning module 80 includes: a high-pressure water backwashing interface 81 and a high-pressure water backwashing pipe 82, wherein the opening of the high-pressure water backwashing interface 81 faces downward, and the high-pressure water backwashing pipe 82 is connected to an external cleaning alkali solution tank.

[0039] The self-cleaning sludge filter 001 of the embodiment of the utility model can also include a dirt collecting module 90, which is located below the housing 10 and is used to collect sludge. The dirt collecting module 90 specifically includes an oil sludge collecting bucket 91, an oil sludge drain port 92, and an oil sludge bucket cleaning port 93. Among them: the oil sludge collecting bucket 91 is used to accommodate the oil sludge falling from the housing 10; the oil sludge drain port 92 is connected to the bottom of the oil sludge collecting bucket 91, and is used to discharge the oil sludge; the oil sludge bucket cleaning port 93 is located on the side surface of the oil sludge collecting bucket 91, and is used to facilitate the inspection and cleaning of the oil sludge collecting bucket 91.

[0040] The self-cleaning sludge filter 001 of the embodiment of the utility model may also include: a plurality of guide support wheels 101 arranged below the filter cartridge, the guide support wheels 101 are used to support the filter cartridge and provide guidance for the filter cartridge when it rotates. Figure 3C As shown, the guide support wheels 101 are located below the support cylinder 40, and there are four of them, two in each group, and each group supports one end surface of the support cylinder 40. This example is only for the convenience of illustration and not for limitation. The guide support wheels 101 are used to support the support cylinder 40 and provide guidance for the support cylinder 40 when it rotates.

[0041] The self-cleaning sludge filter 001 of the embodiment of the utility model may further include: an inspection port 102 arranged on the housing 10 .

[0042] The self-cleaning sludge filter 001 of the utility model embodiment may also include: a pressure difference detection port 103 arranged on the outer shell 10, and the pressure difference detection port 103 is used to place a pressure sensor to detect the pressure difference between the air inlet 20 and the air outlet 30. The pressure difference data can be used to determine whether the filter cartridge is working normally, whether the filter screen is blocked and needs to be replaced, etc.

[0043] According to the self-cleaning sludge filter 001 of the utility model implementation mode, since the gas cleaning module 70 and the liquid cleaning module 80 are arranged on the inner side of the cylinder wall of the support cylinder 40, the filter screen 50 can be backblown by compressed air and the filter screen 50 can be backwashed by high-pressure liquid flow. The filter screen 50 can be cleaned in time during the normal production filtering and waste discharge process, and it can be executed without waiting for the end of production and thorough cooling. It has the advantages of convenience, speed, labor saving, and resource saving.

[0044] In order to enable those skilled in the art to better understand, the working process of the self-cleaning sludge filter according to the embodiment of the utility model is described in detail below.

[0045] like Figure 4A As shown, the reduction motor 61 is powered on and started, driving the driving gear 62 to rotate, the driving gear 62 further drives the rotating gear 63, and finally the rotating gear 63 drives the support tube 40 to rotate, and the rotation speed can be adjusted according to actual needs. The exhaust gas containing particulate matter such as oil mist, stone powder, rubber powder, and tackifier enters the housing 10 through the air inlet 20, and the particulate matter and part of the oil mist are filtered and intercepted by the filter 50 on the support tube 40, and the exhaust gas with most of the particulate matter removed flows to the air outlet 30.

[0046] like Figure 4B As shown, the back-blowing solenoid valve 72 is started, and the compressed air back-blowing pipe 71 releases compressed air instantly, and the compressed air back-blowing pipe 71 is directly facing the oil mist, stone powder, rubber powder, tackifier and other particles attached to the outer surface of the filter 50. The blown-off particles fall into the oil sludge collecting bucket 91 due to gravity. The gas back-blowing cleaning operation can be sprayed once at regular intervals, and the spraying interval time can be adjusted and set according to actual needs. Since the filter 50 is always rotating with the support cylinder 40, each spray is not on the mesh surface in the same place. As a result, the compressed air back-blowing pipe 71 gradually blows off the particles on the surface of each position of the filter 50, so as to achieve the purpose of mechanical and automatic cleaning of the filter 50.

[0047] like Figure 4C As shown, after long-term use, the filter screen 50 will inevitably have parts that cannot be blown clean by compressed air. The high-pressure water backwash interface 81 can be opened to flush the filter screen 50 with the high-pressure alkaline water flowing in the high-pressure water backwash pipe 82 to achieve deep cleaning.

[0048] Finally, when the oil sludge collecting bucket 91 is full of dirt, the oil sludge drain port 92 is opened for discharge. If necessary, the oil sludge collecting bucket 91 is opened for deep cleaning.

[0049] In summary, in the self-cleaning sludge filter of the utility model embodiment, since the filter cartridge is horizontally arranged and can rotate, and the cleaning module is fixedly arranged on the inner side of the cartridge wall of the filter cartridge, when the filter cartridge rotates, the cleaning module can traverse and clean the entire filter cartridge. Therefore, the cleaning module of the self-cleaning sludge filter can clean the filter net at close range, with high efficiency and full coverage, and can clean the filter net in time during the normal production filtering and waste discharge process, without waiting for the production to end and cool down completely, and has the advantages of convenience, speed, labor saving, and resource saving.

[0050] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A self-cleaning sludge filter, characterized in that: It includes a housing, an air inlet, an air outlet, a filter cartridge, a rotary drive module, and a cleaning module, wherein: The housing is in the shape of a column with a horizontally arranged central axis, the air inlet is arranged on a cylindrical side surface of the housing, and the air outlet is arranged on a cylindrical end surface of the housing; The filter cartridge is located inside the housing, the rotating shaft of the filter cartridge is arranged horizontally, and the cartridge wall of the filter cartridge is located between the air inlet and the air outlet; The rotation drive module is connected to the filter cartridge and is used to drive the filter cartridge to rotate around its rotation axis; The cleaning module is located inside the housing and is fixedly arranged on the inner side of the cylinder wall of the filter cylinder. When the filter cylinder rotates, the cleaning module can traversely clean the entire filter cylinder.

2. The self-cleaning sludge filter according to claim 1, characterized in that: The cleaning module comprises: a gas cleaning module and / or a liquid cleaning module. The gas cleaning module is used for back-blowing the filter cartridge with compressed air; the liquid cleaning module is used for back-washing the filter cartridge with high-pressure liquid flow.

3. The self-cleaning sludge filter according to claim 2, characterized in that: The gas cleaning module comprises: a compressed air backflush pipe and a backflush solenoid valve, wherein the compressed air backflush pipe is externally connected to a high-pressure air bag, and the compressed air backflush pipe has a plurality of nozzles arranged along the direction of the rotating axis and with the opening direction facing downward; the backflush solenoid valve is used to control the opening and closing of the compressed air backflush pipe.

4. The self-cleaning sludge filter according to claim 2, characterized in that: The liquid cleaning module comprises: a high-pressure water backwashing interface and a high-pressure water backwashing pipe, wherein the opening of the high-pressure water backwashing interface faces downward, and the high-pressure water backwashing pipe is connected to an external cleaning alkali solution tank.

5. The self-cleaning sludge filter according to claim 1, characterized in that: The filter cylinder comprises a support cylinder and a filter screen, and the filter screen is detachably laid on the cylinder wall of the support cylinder.

6. The self-cleaning sludge filter according to claim 1, characterized in that: It also includes a dirt collecting module, which is located below the shell and is used to collect oil sludge.

7. The self-cleaning sludge filter according to claim 6, characterized in that: The cleaning module is fixedly arranged on the inner side of the lowest position of the cylinder wall of the filter cylinder.

8. The self-cleaning sludge filter according to claim 1, characterized in that: The rotary drive module includes: a reduction motor, a driving gear and a rotary gear, wherein: The reduction motor is connected to an external power supply and operates in a powered state; The first end of the driving gear is connected to the reduction motor, and the second end of the driving gear is connected to the rotating gear; The rotating gear is sleeved on the rotating shaft of the filter cartridge and is used to drive the filter cartridge to rotate.

9. The self-cleaning sludge filter according to claim 1, characterized in that: Also includes: A plurality of guide support wheels are arranged below the filter cartridge, and the guide support wheels are used to support the filter cartridge and provide guidance for the filter cartridge when it rotates.

10. The self-cleaning sludge filter according to any one of claims 1 to 9, characterized in that: Also includes: A pressure difference detection port is provided on the housing, and the pressure difference detection port is used for placing a pressure sensor to detect the pressure difference between the air inlet and the air outlet.

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