Basket filter

Abstract

The utility model discloses a basket filter and belongs to fluid filtering equipment. The filter comprises a shell, a filter frame and a hoisting mechanism, an inlet and an outlet are formed in the two sides of the shell respectively, and differential pressure transmitter interfaces are arranged on the inlet and the outlet and used for measuring the pressure difference of the inlet and the outlet. A quick-opening blind plate is arranged at the top of the shell, and a drain outlet is formed in the bottom of The filter frame is divided into the outer filter cartridge and the inner filter cartridge, and the inner filter cartridge is added, so that the filter area is increased, and the filter efficiency is improved. And a magnetic rod is further arranged in the center of the inner filter cylinder and further adsorbs tiny metal particles in the materials filtered by the filter frame, so that the filter effect is further improved. And when the pressure difference between the inlet and the outlet is greater than a set value, the filter frame in the equipment needs to be cleaned. After the top blind plate is opened, the lifting hook of the lifting mechanism and the lifting handle of the filter frame are fixed, and the filter frame is directly lifted manually through a hand winch of the lifting mechanism, so that manpower is saved, and the need for other equipment is avoided. Therefore, manpower and time are saved, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to a filter for fluid filtration, specifically a basket filter. Background Art

[0002] The basket filter is a fluid filtration device widely used in industries such as petrochemical and coal chemical industries. However, ordinary basket filters have some problems, such as small filtration area of the filter frame, low filtration efficiency, and easy blockage of the filter net. At this time, the filter frame needs to be frequently taken out for cleaning, but it is inconvenient to operate manually to take out the filter frame; at the top of the filter, the traditional structural form of the flange, flange cover and swivel arm also brings difficulties to the opening of the flange cover each time. Therefore, it is necessary to improve the structure of the basket filter to improve its filtration efficiency and facilitate the later maintenance and cleaning work of the equipment. Summary of the Invention

[0003] The utility model provides a basket filter, which solves the technical problems of inconvenient removal of the filter frame and large manual labor intensity in the removal process existing in the prior art.

[0004] The purpose of the outer filter cylinder of the utility model is realized through the following technical solutions:

[0005] A basket filter includes a housing. A drain port is provided at the lower part of the housing. A filter frame is installed inside. An inlet and an outlet are provided on the upper side surface. A quick-opening blind plate is installed at the top. The filter frame includes an inner filter cylinder and an outer filter cylinder. The bottoms of the outer filter cylinder and the inner filter cylinder are positioned by a lower ring plate. A magnetic rod is provided inside the inner filter cylinder. A lifting handle is provided at the top of the outer filter cylinder. The swivel arm mechanism is connected to the quick-opening blind plate through a connecting mechanism. One end of the fixed arm is connected to the connecting mechanism, and the other end extends upward and is connected to one end of the lifting arm. A pulley is provided at the other end of the lifting arm. A lifting rope passes through a hand winch assembly and the pulley and is connected to a hook. The filter frame is lifted by lifting the lifting handle through the hook.

[0006] Preferably, a skirt support is provided at the bottom of the housing, and a pressure gauge port is provided on the side surface.

[0007] Preferably, differential pressure transmitter ports are provided on both the inlet and the outlet.

[0008] Preferably, an upper circular plate is provided at the top of the inner filter cylinder of the filter frame. The upper part of the magnetic rod is positioned by bolts with the upper circular plate, and the lower part is positioned by a fixing mechanism. The top of the outer filter cylinder is an inclined surface. One end of the lifting handle is connected to the highest point of the inclined surface, and the other end is connected to the lowest point of the inclined surface.

[0009] Preferably, a bushing is provided at the top of the fixed arm of the swivel arm mechanism. A thrust ball bearing is provided on the bushing. The connection part of the thrust ball bearing and the bushing is pressed and positioned by a protective cover. One end of a rotating shaft is inserted into the bushing from top to bottom, and the other end is connected to the lifting arm.

[0010] Preferably, a limit sleeve is provided at the end of the boom. The deep groove ball bearing is fixed through the limit sleeve, positioned by a circlip for hole, and fixed to the pulley, enabling the pulley to rotate freely in the circumferential direction.

[0011] The beneficial effects of the present utility model are as follows:

[0012] The filter frame is divided into an outer filter cylinder and an inner filter cylinder. Different from the traditional filter frame of the basket filter which only has an outer filter cylinder, this structure adds an inner filter cylinder, increasing the filtration area and improving the filtration efficiency.

[0013] A magnetic bar is also provided at the center of the inner filter cylinder. The magnetic bar can further adsorb the tiny metal particles in the material filtered by the filter frame, thereby further enhancing the filtration effect.

[0014] When the pressure difference between the inlet and outlet is greater than the set value, the filter frame inside the equipment needs to be cleaned. After the top blind plate is opened, fix the hook of the hoisting mechanism to the lifting handle of the filter frame, and then manually hoist the filter frame directly through the hand winch of the hoisting mechanism, which not only saves manpower but also eliminates the need for other equipment. Thus, it saves manpower and time, and reduces the maintenance cost of the equipment. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is Figure 1 a schematic structural diagram of the filter frame in

[0017] Figure 3 is Figure 1 a schematic structural diagram of the hoisting mechanism in

[0018] Figure 4 is a schematic structural diagram of the connection between the fixed arm and the boom of the hoisting mechanism.

[0019] Figure 5 is a schematic structural diagram of the connection between the pulley and the bearing of the hoisting mechanism. Detailed Embodiments

[0020] As Figure 1As shown in the figure, a basket filter includes a housing 2, a drain port 10 is provided below the housing 2, a filter frame 3 is installed inside, an inlet 4 and an outlet 9 are provided on the upper side, and a quick-opening blind plate 7 is installed on the top; a skirt support 1 is provided at the bottom of the housing 2, and a pressure gauge port 6 is provided on the side; differential pressure transmitter ports 5 are provided on both the inlet 4 and the outlet 9. The fluid enters the filter from the inlet 4, and then after being filtered by the filter frame 3, it is discharged from the outlet 9. At the same time, most of the impurities are filtered at the bottom of the filter frame 3 during the flowing process, and a small part of the impurities adheres to the side wall of the filter frame. For the fluid filtered by the filter frame, some of the finer metal impurities are adsorbed by the magnetic rod in the center of the filter frame 3, so as to achieve further filtration.

[0021] As Figure 2 shown in the figure, the filter frame 3 mainly includes: a lower ring plate 3-1, an outer filter cylinder 3-2, an inner filter cylinder 3-3, a lifting handle 3-4, an upper circular plate 3-5, a magnetic rod 3-6, and a fixing mechanism 3-7. The filter frame 3 includes an outer filter cylinder 3-2 and an inner filter cylinder 3-3. The bottoms of the outer filter cylinder 3-2 and the inner filter cylinder 3-3 are positioned by the lower ring plate 3-1. A magnetic rod 3-6 is provided inside the inner filter cylinder 3-3, and a lifting handle 3-4 is provided at the top of the outer filter cylinder 3-2; an upper circular plate 3-5 is provided at the top of the inner filter cylinder 3-3 of the filter frame 3. The upper part of the magnetic rod 3-6 is fixed to the upper circular plate 3-5 by bolts, and the lower part is fixed by the fixing mechanism 3-7; the top of the outer filter cylinder 3-2 is an inclined surface, one end of the lifting handle 3-4 is connected to the highest point of the inclined surface, and the other end is connected to the lowest point of the inclined surface. The material enters the filter frame from the top of the filter frame and flows downward, and can be filtered through the inner side of the outer filter cylinder 3-2, the outer side of the inner filter cylinder 3-3, the lower ring plate 3-1 and the top of the upper circular plate 3-5. When the filtered material passes through the magnetic rod 3-6, the fine metal particles in the material are adsorbed on the magnetic rod 3-6, so as to further improve the filtering effect. The setting of the inner filter cylinder also greatly increases the filtering area, thereby improving the filtering efficiency.

[0022] As Figures 3-5As shown in the figure, the swing arm mechanism 8 mainly includes: a pulley 8-1, a limit sleeve 8-2, a deep groove ball bearing 8-3, a hole snap ring 8-4, a lifting arm 8-5, a protective cover 8-6, a thrust ball bearing 8-7, a fixed arm 8-8, a winch assembly 8-9, and a connecting mechanism 8-10. The swing arm mechanism 8 is installed with the quick-opening blind plate 7 through the connecting mechanism 8-10. One end of the fixed arm 8-8 is connected to the connecting mechanism 8-10, and the other end extends upward and is connected to one end of the lifting arm 8-5. The other end of the lifting arm 8-5 is provided with a pulley 8-1. The lifting rope passes through the winch assembly 8-9 and the pulley 8-1 and is connected to the hook. The filter frame 3 is lifted by lifting the lifting handle 3-4 through the hook. At the top of the fixed arm 8-8 of the swing arm mechanism 8, there is a bushing 8-8-1. A thrust ball bearing 8-7 is provided on the bushing 8-8-1. The connection part of the thrust ball bearing 8-7 and the bushing 8-8-1 is pressed and positioned by the protective cover 8-6. One end of the rotating shaft 8-5-1 is inserted into the bushing 8-8-1 from top to bottom, and the other end is connected to the lifting arm 8-5, so that the lifting arm 8-5 can rotate freely in the horizontal direction. A limit sleeve 8-2 is provided at the end of the lifting arm 8-5. The deep groove ball bearing 8-3 is fixed by the limit sleeve 8-2, and the deep groove ball bearing 8-3 is positioned by the hole snap ring 8-4 and fixed to the pulley 8-1, so that the pulley 8-1 can rotate freely in the circumferential direction.

[0023] As Figure 1 , Figure 3 shown in the figure, when the filter frame 3 needs to be taken out for cleaning, first open the quick-opening blind plate 7. After the quick-opening blind plate 7 is opened, lower the winch hook of the winch assembly 8-9 to the lifting handle 3-4 through the winch assembly 8-9, and then hook the lifting handle 3-4 with the hook. At this time, lift the entire filter frame upward through the winch assembly 8-9 until the bottom of the filter frame is completely higher than the end of the cylinder flange. At this time, the filter frame 3 can rotate freely in the horizontal direction according to needs and be placed, greatly saving manpower and bringing convenience to the removal of the filter frame 3.

Claims

1. A basket strainer, comprising a housing (2), characterized in that: A drain outlet (10) is provided under the described housing (2), a filter frame (3) is installed inside, an inlet (4) and an outlet (9) are provided on the upper side, and a quick-opening blind plate (7) is installed on the top; the described filter frame (3) includes an outer filter cylinder (3-2) and an inner filter cylinder (3-3), the bottoms of the outer filter cylinder (3-2) and the inner filter cylinder (3-3) are fixed by a lower ring plate (3-1), a magnetic bar (3-6) is provided inside the inner filter cylinder (3-3), and a lifting handle (3-4) is provided on the top of the outer filter cylinder (3-2); the swing arm mechanism (8) is connected to the quick-opening blind plate (7) through a connecting mechanism (8-10), one end of the fixed arm (8-8) is connected to the connecting mechanism (8-10), the other end extends upward and is connected to one end of the lifting arm (8-5), a pulley (8-1) is provided at the other end of the lifting arm (8-5), a lifting rope passes through the hand winch assembly (8-9) and the pulley (8-1) and is connected to a hook, and the lifting handle (3-4) is lifted by the hook to lift the filter frame (3).

2. The basket strainer according to claim 1, characterized in that: A skirt support (1) is provided at the bottom of the described housing (2), and a pressure gauge port (6) is provided on the side.

3. A basket filter according to claim 1, characterized in that: Differential pressure transmitter ports (5) are provided on both the described inlet (4) and the outlet (9).

4. A basket filter according to claim 1, wherein: An upper circular plate (3-5) is provided at the top of the inner filter cylinder (3-3) of the described filter frame (3), the upper part of the magnetic bar (3-6) is fixed to the upper circular plate (3-5) by bolts, and the lower part is fixed by a fixing mechanism (3-7); the top of the outer filter cylinder (3-2) is an inclined surface, one end of the lifting handle (3-4) is connected to the highest point of the inclined surface, and the other end is connected to the lowest point of the inclined surface.

5. A basket strainer according to claim 1, characterized in that: A bushing (8-8-1) is provided at the top of the fixed arm (8-8) of the described swing arm mechanism (8), a thrust ball bearing (8-7) is provided on the bushing (8-8-1), and the connection part of the thrust ball bearing (8-7) and the bushing (8-8-1) is pressed and positioned by a protective cover (8-6), one end of a rotating shaft (8-5-1) is inserted into the bushing (8-8-1) from top to bottom, and the other end is connected to the lifting arm (8-5).

6. The basket strainer according to claim 1, wherein: A limit sleeve (8-2) is provided at the end of the described lifting arm (8-5), a deep groove ball bearing (8-3) is fixed by the limit sleeve (8-2), the deep groove ball bearing (8-3) is positioned by a hole-type snap ring (8-4), and is fixed to the pulley (8-1) to make the pulley (8-1) rotate freely in the circumferential direction.

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