CN114768330A - Off-line cleaning method for plate-and-frame filter press - Google Patents
Off-line cleaning method for plate-and-frame filter press Download PDFInfo
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- CN114768330A CN114768330A CN202210589666.XA CN202210589666A CN114768330A CN 114768330 A CN114768330 A CN 114768330A CN 202210589666 A CN202210589666 A CN 202210589666A CN 114768330 A CN114768330 A CN 114768330A
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- plate
- soaking
- filter press
- cleaning method
- frame filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses an off-line cleaning method of a plate-and-frame filter press. The plate-and-frame filter press off-line cleaning method comprises the following steps: s1, primary soaking, namely soaking the filter cloth in a first soaking pool, wherein the soaking pool is filled with a first pickling solution, and the first pickling solution is dissolved in neutralized calcium and magnesium ions; s2, carrying out secondary soaking, and transferring the soaked filter cloth to a second soaking pool through a transfer mechanism, wherein the second soaking pool is filled with a second acid lotion for softening organic matters; s3, cleaning, wherein the transfer mechanism transfers the softened filter cloth into a cleaning pool for cleaning; and S4, dewatering, and conveying the cleaned filter cloth into a spin dryer for dewatering. The plate-and-frame filter press off-line cleaning method can save water resources and achieve the cleaning effect.
Description
Technical Field
The invention relates to the technical field of plate-and-frame filter press cleaning, in particular to an off-line cleaning method of a plate-and-frame filter press.
Background
In sewage treatment, a plate-and-frame filter press is generally used for dewatering sludge, and filter cloth of the plate-and-frame filter press needs to be cleaned periodically or otherwise cannot achieve a dewatering effect. The conventional cleaning is to clean the filter cloth disassembled by a high-pressure water gun manually, and certain impurities can be remained and water resources are wasted although most of the impurities can be cleaned.
Disclosure of Invention
The invention aims to provide a plate-and-frame filter press off-line cleaning method capable of saving water resources.
In order to solve the above problems, the present invention provides an off-line cleaning method for a plate-and-frame filter press, comprising the following steps:
s1, primary soaking, namely soaking the filter cloth in a first soaking pool, wherein the soaking pool is filled with a first pickling solution, and the first pickling solution is dissolved in neutralized calcium and magnesium ions;
s2, secondary soaking, namely transferring the soaked filter cloth to a second soaking pool through a transfer mechanism, wherein a second soaking pool is filled with a second acid washing liquid which is used for softening organic matters;
s3, cleaning, wherein the transfer mechanism transfers the softened filter cloth into a cleaning pool for cleaning;
and S4, dewatering, and conveying the cleaned filter cloth into a spin dryer for dewatering.
Further, the pH value of the first pickling solution is 1-2.
Further, the first acid washing solution is hydrochloric acid.
Further, the second acid washing liquid is sodium hypochlorite.
Further, the filter cloth is soaked in the first soaking pool and the second soaking pool and is aerated through the aeration pipe.
Further, transport mechanism includes transport box, support body, horizontal power component, first electric block, second electric block, locking subassembly and loading board, the transport box articulates on first electric block and second electric block, horizontal power component, first electric block, second electric block and locking subassembly are all fixed the loading board, first electric block and second electric block are used for adjusting the height of transport box, the loading board is equipped with the pulley and slides and establish on the track of support body, horizontal power component is used for driving the loading board and is in move on the support body, the loading board drives transport box lateral shifting, the locking subassembly is used for opening or closing the transport box.
Furthermore, the transfer box comprises a bottom fence, a movable fence and three fixed fences, the three fixed fences and the movable fence are enclosed to form box walls, the movable fence is rotatably arranged on the adjacent fixed fences through a shaft rod, and the bottom fence is connected to the three fixed fences.
Furthermore, the bottom fence, the movable fence and the three fixed fences are all made of or coated with anti-corrosion rod pieces.
Furthermore, the locking assembly comprises a locking device, a lifting cylinder and an electromagnet, the magnetic block is fixed on an expansion rod of the lifting cylinder, and the locking device is inserted in the fixed fence and the movable fence.
Furthermore, be equipped with on the locker and dodge groove, first draw-in groove and second draw-in groove, first draw-in groove is used for the card to establish welded fastening's fence, and the second draw-in groove is used for the card to establish the fence that the pivot is connected, dodge the groove and be used for dodging the axostylus axostyle.
The off-line cleaning method of the plate-and-frame filter press comprises the steps of soaking twice, removing inorganic matters such as calcium and magnesium ions by soaking for the first time, softening the organic matters by soaking for the second time, and cleaning by using clear water, so that a large amount of water can be saved, the water consumption is saved by 30% compared with the original cleaning mode, and the filter cloth cleaned by soaking is more thorough compared with the original cleaning mode.
Drawings
Figure 1 is a flow diagram of the plate and frame filter press off-line cleaning process of the present invention.
Fig. 2 is a schematic structural view of the transfer mechanism.
Fig. 3 is a schematic structural view of the transfer box when the transfer box is placed in the first soaking pool.
Fig. 4 is a schematic view of the structure of the transfer box.
Fig. 5 is a schematic structural view showing that the locker is inserted into the movable fence and the fixed fence.
Fig. 6 is a partially enlarged view of a in fig. 2.
Fig. 7 is a schematic view of the structure of the locker.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the preferred embodiment of the plate-and-frame filter press off-line cleaning method of the present invention comprises the following steps:
s1, soaking for the first time, and placing the filter cloth into a first soaking pool 1 by using a transfer mechanism 5 for soaking, wherein a first pickling solution is contained in the soaking pool, is dissolved in the neutralizing calcium and magnesium ions, is hydrochloric acid, and has a pH value of 1-2.
S2, soaking for the second time, after the soaking for the first time is completed, the filter cloth is transferred to a second soaking pool 2 through a transfer mechanism 5, a second acid washing liquid is contained in the second soaking pool 2 and used for softening organic matters, and the second acid washing liquid is sodium hypochlorite.
And S3, cleaning, wherein the softened filter cloth is transferred to a cleaning tank 3 by a transfer mechanism 5 for cleaning, a wave wheel (not shown) for stirring water flow is arranged in the cleaning tank 3, and the filter cloth is cleaned by stirring water flow.
And S4, dewatering, and conveying the cleaned filter cloth into a drying machine 4 for dewatering.
Transport mechanism 5 includes transfer box 51, support body 52, horizontal power component 53, first electric block 54, second electric block 55, locking assembly and loading board 57, transfer box 51 articulates on first electric block 54 and second electric block 55, horizontal power component 53, first electric block 54, second electric block 55 and locking assembly are all fixed loading board 57, first electric block 54 and second electric block 55 are used for adjusting the height of transfer box 51, loading board 57 is equipped with the pulley and slides and establish on the track of support body 52, horizontal power component 53 is used for driving loading board 57 and is in move on the support body 52, loading board 57 drives transfer box 51 lateral shifting, locking assembly is used for opening or closing transfer box 51. The transverse power assembly 53 is a conventional power device, and may be a motor and a speed reducer, the motor drives the speed reducer, the speed reducer drives the pulley, and other devices may be used instead in other embodiments.
As shown in fig. 3 to 5, the transfer box 51 includes a grid-shaped bottom fence, a movable fence and three fixed fences, the three fixed fences and the movable fence enclose a box wall, the bottom fence is connected to the three fixed fences, and the transfer box 51 made of fences can ensure that the first pickling solution and the second pickling solution in the first soaking tank 1 and the second soaking tank 2 can contact with the filter cloth in the transfer box 51. The movable fences are rotatably arranged on the adjacent fixed fences through shaft rods, and the locking assemblies are arranged on the movable fences and the fixed fences, so that the locking assemblies lock the movable fences to prevent the movable fences from rotating, the transfer box 51 is closed, and the transfer box 51 is opened after the locking assemblies are separated from the fixed fences and the movable fences. The bottom fence, the movable fence and the three fixed fences are all made of or coated with anti-corrosion rod pieces, so that the transfer box 51 is ensured to be durable. The rod piece on the fence at the bottom is overlapped with the aeration hole on the aeration pipe 6, namely, a rod piece with the same direction as the aeration hole is arranged right above the aeration hole, so that the aeration hole can be divided, bubbles are smaller, the soaking effect is increased, and meanwhile, the aeration hole can be prevented from being blocked.
As shown in fig. 6 and 7, the locking assembly includes a locking device 561, a lifting cylinder 562 and an electromagnet 563, the magnetic block is fixed on an expansion link of the lifting cylinder 562, the locking device 561 is inserted into a fixed fence and a movable fence, so as to fix the movable fence and prevent the movable fence from rotating, so as to close the transfer box 51, when the transfer box 51 needs to be opened, the lifting cylinder 562 drives the electromagnet 563 to descend, then the locking device 561 is adsorbed, and after adsorption, the lifting cylinder 562 drives the electromagnet 563 to ascend, so as to drive the locking device 561 to ascend and separate from the transfer box 51, so that the transfer box 51 is opened.
Be equipped with on the lock 561 and dodge groove 5611, first draw-in groove 5612 and second draw-in groove 5613, first draw-in groove 5612 is used for the card to establish welded fastening's fence, and second draw-in groove 5613 is used for the card to establish the fence that the pivot is connected, dodge groove 5611 and be used for dodging the axostylus axostyle.
During the specific use, arrange the filter cloth in transfer box 51, then first electric block 54 and second electric block 55 below simultaneously, make transfer box 51 steadily fall into first fermentation vat 1, after soaking the time of predetermineeing in first fermentation vat 1, transfer box 51 is drawn up simultaneously to first electric block 54 and second electric block 55, then horizontal power component 53 drives loading board 57 lateral shifting, makes transfer box 51 remove to second fermentation vat 2 top from first fermentation vat 1 top. The first electric hoist 54 and the second electric hoist 55 lower the transfer box 51 into the second soaking pool 2; after the soaking time reaches the preset time, the first electric hoist 54 and the second electric hoist 55 synchronously convey the transfer box 51 into the cleaning pool 3 for cleaning, after the cleaning is finished, the first electric hoist 54 and the second electric hoist 55 synchronously convey the transfer box 51 to the upper side of the spin dryer 4, the lifting cylinder 562 drives the electromagnet 563 to move downwards, the locker 561 is adsorbed, the lifting cylinder 562 drives the electromagnet 563 to reset, meanwhile, the locker 561 is driven to leave the transfer box 51, the transfer box 51 is opened, after the opening is finished, the first electric hoist 54 transfers the transfer box 51, the transfer box 51 is inclined, the filter cloth drives the movable fence to rotate under the action of gravity, so that the filter cloth falls into the spin dryer 4, and the spin dryer 4 performs dehydration and spin-drying.
Through twice soaking, inorganic matters such as calcium and magnesium ions are removed through first soaking, the organic matters are softened through second soaking, and then the filter cloth is cleaned by clear water, so that a large amount of water can be saved, compared with the original cleaning mode, the water consumption is saved by 30%, and compared with the original cleaning mode, the filter cloth cleaned after soaking is more thorough in cleaning. Meanwhile, the transfer is realized through machinery between the devices, manual carrying is not needed, the operation is simple and convenient, and the efficiency is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (10)
1. The off-line cleaning method of the plate-and-frame filter press is characterized by comprising the following steps: the method comprises the following steps:
s1, primary soaking, namely soaking the filter cloth in a first soaking pool, wherein the soaking pool is filled with a first pickling solution, and the first pickling solution is dissolved in neutralized calcium and magnesium ions;
s2, carrying out secondary soaking, and transferring the soaked filter cloth to a second soaking pool through a transfer mechanism, wherein the second soaking pool is filled with a second acid lotion for softening organic matters;
s3, cleaning, wherein the transfer mechanism transfers the softened filter cloth into a cleaning pool for cleaning;
and S4, dewatering, and conveying the cleaned filter cloth into a spin dryer for dewatering.
2. The plate and frame filter press off-line cleaning method of claim 1, wherein: the pH value of the first pickling solution is 1-2.
3. The plate and frame filter press off-line cleaning method of claim 1, wherein: the first acid washing liquid is hydrochloric acid.
4. The plate and frame filter press off-line cleaning method of claim 1, wherein: the second pickle liquor is sodium hypochlorite.
5. The plate and frame filter press off-line cleaning method of claim 1, wherein: the filter cloth is also aerated through the aeration pipe while being soaked in the first soaking pool and the second soaking pool.
6. The plate and frame filter press off-line cleaning method of claim 1, wherein: transport mechanism includes transport box, support body, horizontal power component, first electric block, second electric block, locking subassembly and loading board, the transport box articulates on first electric block and the second electric block, horizontal power component, first electric block, second electric block and locking subassembly are all fixed the loading board, first electric block and second electric block are used for adjusting the height of transport box, the loading board is equipped with the pulley and slides and establishes on the track of support body, horizontal power component is used for driving the loading board and removes on the support body, the loading board drives transport box lateral shifting, the locking subassembly is used for opening or closes the transport box.
7. The plate and frame filter press off-line cleaning method of claim 6, wherein: the transfer box comprises a bottom fence, a movable fence and three fixed fences, the three fixed fences and the movable fence are enclosed to form box walls, the movable fence is rotatably arranged on the adjacent fixed fences through a shaft rod, and the bottom fence is connected to the three fixed fences.
8. The plate and frame filter press off-line cleaning method of claim 6, wherein: the bottom fence, the movable fence and the three fixed fences are all made of or coated with anti-corrosion rod pieces.
9. The plate and frame filter press off-line cleaning method of claim 6, wherein: the locking assembly comprises a locking device, a lifting cylinder and an electromagnet, the magnetic block is fixed on an expansion rod of the lifting cylinder, and the locking device is inserted into the fixed fence and the movable fence.
10. The plate and frame filter press off-line cleaning method of claim 6, wherein: the lock is provided with an avoiding groove, a first clamping groove and a second clamping groove, the first clamping groove is used for clamping a fence fixedly welded, the second clamping groove is used for clamping a fence connected with the rotating shaft, and the avoiding groove is used for avoiding the shaft lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210589666.XA CN114768330A (en) | 2022-05-27 | 2022-05-27 | Off-line cleaning method for plate-and-frame filter press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210589666.XA CN114768330A (en) | 2022-05-27 | 2022-05-27 | Off-line cleaning method for plate-and-frame filter press |
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| CN114768330A true CN114768330A (en) | 2022-07-22 |
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|---|---|---|---|
| CN202210589666.XA Pending CN114768330A (en) | 2022-05-27 | 2022-05-27 | Off-line cleaning method for plate-and-frame filter press |
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-
2022
- 2022-05-27 CN CN202210589666.XA patent/CN114768330A/en active Pending
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