RU1775131C - Cartridge filter - Google Patents

Abstract

The invention relates to chemical engineering, in particular to cartridge filters, and can be used in chemical and other industries. The filter contains a housing, a tube plate with filtering cartridges and an opening for supplying the suspension to the filter chamber, a cover with fittings for supplying the suspension and discharge of the filtrate, the tube board is rigidly connected to the cover, a rotary device and a device for moving the housing 6 are connected to it

Description

The invention relates to chemical engineering, in particular to cartridge filters, and can be used in chemical; pharmaceutical and other industries for clarifying liquids when no precipitate forms on the surface of the filter cartridges.

The goal is to reduce the time it takes to disassemble and maintain the filter, as well as to improve the quality of service with a large number of filter cartridges.

The goal is achieved in that in a cartridge filter containing a housing, a tube plate with filter cartridges and an opening for supplying the suspension to the filter chamber, a cover with fittings for supplying the suspension and drainage of the filtrate, unlike the known one, the tube board is rigidly connected to the filter cover, while the filter is provided with a rotary device mounted on the housing and a device connected thereto for moving the housing.

Figure 1 shows the cartridge filter in the Assembly, General view; Fig 2 - position

turned 90 ° of the filter housing after disassembling the filter for servicing or replacing filter cartridges; Fig. 3 shows a cover with filter cartridges without a housing; Fig. 4 shows the position of the housing after its removal.

The filter consists of a housing 1 mounted on a rotary device 2, made, for example, in the form of a worm gear, the low-speed shaft of which is the rotary axis for the housing 1, and the high-speed shaft is connected through the coupling to the motor, and the shaft is also mounted brake (not shown). The rotary device 2 is connected to a device for moving the filter housing 1 mounted on a frame 4, equipped with end stops 5 on which an end relay can be installed to automatically stop the device 3 with the housing 1 As a device 3 for moving the filter housing in this example, a cart is shown, moving with guides of the frame 4. The device 3 has a drive,

to

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brake and steering system (not shown).

In addition, the filter includes a tube plate 6 with filter cartridges 7, rigidly connected to the cover 8, which has a fitting for introducing the suspension 9 and the outlet of the filtrate 10. The cover 8 is fixedly mounted on the frame 4, and the filter housing 1 is attached to the cover with the tube plate by means of a bayonet mount shutter 11,

Figs. 5 and 6 show possible options for the position of the filter in its vertical arrangement: in Fig. 5, the housing moves upward with rotation; Fig. 6 - the housing moves downward with rotation;

The filter works as follows.

A suspension is fed into the assembled filter with clean filter cartridges 7 through the nozzle 9 and the tube plate 6 into the filter chamber formed by the filter housing and the tube plate 6. Depending on the filtering conditions, overpressure is created in the filtering chamber or, under the filter cover 8, a vacuum is created. Due to the pressure differential, the suspension is filtered through the cartridges 7. The purified liquid (filtrate) is removed from the filter through the nozzle 10. The cartridges 7 can be periodically regenerated by the reverse flow of the filtrate.

The filtering process is carried out until the hydraulic resistance of the cartridges, due to clogging of pores with soiling, reaches the maximum permissible value. After that, the operator shuts off the suspension, empties the filter and replaces the cartridges 7 with new ones.

To do this, the operator gives the command to open the bayonet shutter 11 from the control panel. After opening the shutter 11, the operator releases the brake of device 3 and turns on the drive of this device to move the filter housing (not shown). A device 3 for moving the filter housing 1, connected through a rotary device 2 to the filter housing 1, moves along the guides along the frame 4, moving the housing 1 away from the tube plate 6 and opening the cartridges 7.

The device 3 for moving the filter housing 1 moves together with the housing 1 to the end stop 5 corresponding to the extreme position of the housing 1. When the device 3 reaches the stop 5, an end relay trips the drive of the device 3. A command is issued from the operator’s control panel to apply the brake to the device 3 fixing it, which prevents the possibility of movement of the device 3

when turning housing 1 and further servicing the filter.

After fixing the device 3 for moving the filter housing with the brake, the operator releases the brake of the rotary device 2 and engages its drive, which, for example, through the worm gear, rotates the housing 1 around the axis by 90 °. When the extreme position of the housing 1 is reached, a relay is activated, which turns off the drive of the rotary device 2 and turns on the brake, which fixes the rotary device 2 and the housing 1 in this position.

In the turned position, the housing 1 provides a sufficient amount of working space in the area of the cartridges 7 (see Fig. 3, 4, 5, 6).

By means of mechanization, a manipulator or, in special conditions, by means of a robot, replacement is carried out

0 spent cartridges 7 to new ones, which are fixed in a fixed tube plate 6. At the same time, the filter housing 1 can be cleaned. After replacing the cartridges 7 and cleaning the housing 1, the procedure begins

5 filter assemblies.

The operator, using the control panel, releases the brake and turns on the drive of the rotary device 2. The housing 1 rotates around the axis in the opposite direction by 90 ° and occupies a position coaxial with the central axis of the filter. When this position is reached, a relay is activated that turns off the drive of the rotary device 2 and turns on the brake of this device. Next, the operator gives the command

5 to release the brake and activate the drive of the device 3 to move the filter housing. The device 3 with the housing 1 smoothly leads to the stationary tube plate 6. When the housing 1 reaches the extreme position, a relay is activated that disconnects the drive of the device 3 for moving the filter housing. After the operator has examined the state of the seal between the housing 1 and the tube plate 6, the operator turns on the drive

5 of a bayonet lock 11 (not shown) which tightens the housing 1 with the fixed tube plate 6 rigidly connected to the cover 8. The operator then activates the brake of the device for moving the filter housing 3 and the filter assembly is completed. Suspension is fed into the filter through the nozzle 9 and the filtering cycle is repeated. This ensures the mechanization of all maintenance operations.

5 filters.

All operations for turning on and off the brake systems and drives of the device for moving the filter housing and the device for rotating the filter housing

can also be carried out automatically by the operator.

In addition to the horizontal position of the filter, depending on the performance and production conditions, a vertical arrangement of the filter is also possible (see FIGS. 5 and 6), moreover, depending on the design of the cartridges 7 and their mounting method in the tube plate, the housing can move upwards when the filter is disassembled ( see figure 5) or down (see figure 6). Otherwise, all maintenance operations are identical to those described above.

The use of rigid fastening of the tube plate to the filter cover in combination with a pivoting device mounted on the housing and a device for moving the filter housing achieves complete mechanization of the assembly and disassembly of the filter, which reduces the service time by 20-25%. In addition, the quality of service of the filter, which is expressed in the exclusion of damage to the filter housing or cartridges during assembly or disassembly of the filter,

Claims (1)

SUMMARY OF THE INVENTION A cartridge filter comprising a housing, a tube plate with filter cartridges and an opening for supplying a suspension to a filter chamber, a cover with fittings for discharging the suspension and discharging the filtrate, characterized in that, in order to reduce the service time and disassemble the filter and simplify maintenance; the tube plate is rigidly connected to the filter cover, the filter having a rotary device mounted on the housing and a device for moving the housing connected thereto. 7 7 I I  g in - 5 Riga. 3 I II U / Fig 4 fh xi I 3 ct --b n 7 /  FIG. 5 8 R S FIG. 6